WO2017216987A1 - Refrigeration cycle device - Google Patents
Refrigeration cycle device Download PDFInfo
- Publication number
- WO2017216987A1 WO2017216987A1 PCT/JP2016/087757 JP2016087757W WO2017216987A1 WO 2017216987 A1 WO2017216987 A1 WO 2017216987A1 JP 2016087757 W JP2016087757 W JP 2016087757W WO 2017216987 A1 WO2017216987 A1 WO 2017216987A1
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- WIPO (PCT)
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- unit
- water
- air
- duct
- refrigeration cycle
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
- F24F1/28—Refrigerant piping for connecting several separate outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
- F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/46—Component arrangements in separate outdoor units
- F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
- F24F1/50—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow with outlet air in upward direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
Definitions
- Embodiment of this invention is related with the refrigerating-cycle apparatus by which the connection edge part of water piping protruded out of the machine room. Furthermore, the embodiment of the present invention relates to a refrigeration cycle apparatus excellent in exhaust heat performance (maintenability) and assemblability.
- an air-cooled heat pump chilling unit that generates cold water or hot water includes a first section having a machine room in which various refrigeration cycle components are accommodated, and a second section in which a plurality of air heat exchange units are arranged in a row. And.
- the second section is placed on top of the first section.
- Each of the first section and the second section has an elongated shape extending in the depth direction of the chilling unit, and the entire length along the longitudinal direction is set to be substantially the same.
- both end portions along the longitudinal direction of the first section and the second section are continuously raised along the height direction of the chilling unit, and one end portion along the longitudinal direction of the first section The connecting end of the water pipe protrudes from the end.
- connection end of the water piping and the site piping laid on the site can be connected using various valves and flexible joints. It is common.
- connection end of the water pipe protrudes from the one end of the first section to the outside of the chilling unit, it is inevitable that various valves and flexible joints project over the chilling unit.
- An object of the present invention is to obtain a refrigeration cycle apparatus that can reduce the space required for installation and can be installed without difficulty even in a narrow space.
- an object of the present invention is to obtain a refrigeration cycle apparatus excellent in exhaust heat (maintenance) and assemblability.
- a refrigeration cycle apparatus includes an electric box that controls a refrigeration cycle operation and includes a compressor, and a fan capable of exhausting hot air generated from heat-generating components inside the electric box. And a device.
- the fan device includes an exhaust heat fan unit capable of generating an air flow inside the electrical equipment box, and a duct unit capable of exhausting hot air inside the electrical equipment box by the air flow.
- the exhaust heat fan unit is accommodated in the duct unit.
- FIG. 1 is a perspective view of an air-cooled heat pump chilling unit according to the first embodiment.
- FIG. 2 is a perspective view of the air-cooled heat pump chilling unit according to the first embodiment as viewed from the left side with the machine room opened.
- FIG. 3 is a perspective view of the air-cooled heat pump chilling unit according to the first embodiment as viewed from the right side with the machine room opened.
- FIG. 4 is a side view of the air-cooled heat pump chilling unit according to the first embodiment.
- FIG. 5 is a circuit diagram showing a refrigeration cycle of the air-cooled heat pump chilling unit according to the first embodiment.
- FIG. 6 is a plan view showing the positional relationship between the first refrigeration cycle unit, the second refrigeration cycle unit, the water circuit, and the electrical unit housed in the machine room.
- FIG. 1 is a perspective view of an air-cooled heat pump chilling unit according to the first embodiment.
- FIG. 2 is a perspective view of the air-cooled heat pump chilling unit according to the first embodiment as viewed
- FIG. 7 is an exploded perspective view showing an air heat exchange unit used in the air-cooled heat pump chilling unit according to the first embodiment.
- FIG. 8 is a perspective view showing the positional relationship between the machine room and the drain pan in the air-cooled heat pump chilling unit according to the first embodiment.
- FIG. 9 is a cross-sectional view showing the positional relationship among the electrical unit, the drain pan, and the air heat exchange unit in the air-cooled heat pump chilling unit according to the first embodiment.
- FIG. 10 is a side view of an air-cooled heat pump chilling unit according to the second embodiment.
- FIG. 11 is a side view of an air-cooled heat pump chilling unit according to the third embodiment. The perspective view of the air-cooling heat pump type chilling unit which concerns on 4th Embodiment.
- the perspective view which shows the arrangement configuration of a duct unit and a waste heat fan unit The perspective view which shows the arrangement configuration of a partition base and a duct unit in 5th Embodiment.
- the perspective view which expands and shows the inside of the frame of F15 of FIG. The front view which shows the arrangement configuration of the partition base of FIG. 14, and a duct unit.
- FIG. 1 to 3 are perspective views of an air-cooled heat pump chilling unit that generates, for example, cold water or hot water
- FIG. 4 is a side view of the air-cooled heat pump chilling unit
- FIG. 5 is a refrigeration cycle of the air-cooled heat pump chilling unit. It is a circuit diagram.
- the air-cooled heat pump chilling unit is an example of a refrigeration cycle apparatus that can be operated in a cooling mode and a heating mode, for example, and can be rephrased as an air-cooled heat pump heat source machine.
- the air-cooled heat pump chilling unit is simply referred to as a chilling unit.
- the chilling unit 1 includes a housing 2, a first refrigeration cycle unit 3, a second refrigeration cycle unit 4, a water circuit 5, and an electrical unit 6 as main elements. .
- the housing 2 is an example of a first section, and is installed on a horizontal installation surface G such as a building roof.
- the casing 2 is formed in an elongated hollow box shape whose depth dimension is much larger than the width dimension.
- the housing 2 includes a main frame 7.
- the main frame 7 includes a lower frame 8, an upper frame 9 and a plurality of vertical bars 10.
- the lower frame 8 and the upper frame 9 are elongated rectangular shapes extending in the depth direction of the housing 2.
- the length L1 of the lower frame 8 along the depth direction of the housing 2 is shorter than the length L2 of the upper frame 9 along the depth direction of the housing 2.
- the length L3 of the upper frame 9 along the width direction of the housing 2 is shorter than the length L4 of the lower frame 8 along the width direction of the housing 2.
- the vertical beam 10 is an element that connects the lower frame 8 and the upper frame 9, and is arranged at intervals in the depth direction of the housing 2.
- the vertical rails 10 facing the width direction of the housing 2 are inclined so as to approach each other as they proceed from the lower frame 8 to the upper frame 9.
- the main frame 7 moves from the lower frame 8 toward the upper frame 9. It is formed in a tapered shape such that the dimension along the width direction is gradually narrowed.
- the right side surface and the left side surface of the main frame 7 are each covered with a plurality of side plates 12.
- the front and back surfaces of the main frame 7 are covered with end plates (not shown).
- the bottom plate 13 is fixed on the lower frame 8.
- the bottom plate 13 is a plurality of sheet metal members on which the first refrigeration cycle unit 3, the second refrigeration cycle unit 4, the electrical unit 6, and a pump unit having a spiral pump 45 described later are placed, Is fixed to the main frame 7.
- the bottom plate 13 defines a machine room 14 inside the housing 2 in cooperation with the side plate 12 and the end plate.
- the machine room 14 extends over the entire length along the depth direction of the housing 2.
- the front end of the lower frame 8 and the front end of the upper frame 9 positioned on the front side of the housing 2 are positioned along the depth direction of the housing 2 so as to be aligned in the height direction of the housing 2. Are aligned with each other.
- the upper frame 9 projects horizontally beyond the lower frame 8 toward the back of the housing 2.
- the total length along the depth direction of the housing 2 is defined by the length L ⁇ b> 1 of the lower frame 8.
- the depth direction of the housing 2 can be restated as the longitudinal direction of the housing 2.
- the first refrigeration cycle unit 3 includes a first refrigerant circuit RA and a second refrigerant circuit RB that are independent of each other.
- the second refrigeration cycle unit 4 includes a third refrigerant circuit RC and a fourth refrigerant circuit RD that are independent of each other.
- first to fourth refrigerant circuits RA, RB, RC, and RD have a common configuration
- the first refrigerant circuit RA will be described as a representative
- the first refrigerant circuit RA mainly includes a variable capacity compressor 20, a four-way valve 21, an air heat exchanger 22, a pair of expansion valves 23a and 23b, a receiver 24, a water heat exchanger 25, and a gas-liquid separator 26. It is prepared as an element.
- the plurality of elements are examples of refrigeration cycle components and are connected via a circulation circuit 27 in which the refrigerant circulates.
- the discharge port of the compressor 20 is connected to the first port 21 a of the four-way valve 21.
- the second port 21 b of the four-way valve 21 is connected to the air heat exchange unit 22.
- the air heat exchanging unit 22 of the present embodiment includes a pair of air heat exchangers 29 a and 29 b and a fan 30.
- the air heat exchangers 29 a and 29 b are configured by combining a plurality of plate fins and a plurality of refrigerant pipes, and have a shape in which a horizontal cross section is bent into a substantially C shape. .
- the air heat exchangers 29a and 29b are erected so as to face each other with a gap in the width direction of the housing 2, and are inclined to move away from each other as they move upward.
- a gap between the edges of the air heat exchangers 29a and 29b is closed by a pair of shielding plates 32a and 32b.
- a cylindrical space surrounded by the air heat exchangers 29a and 29b and the shielding plates 32a and 32b defines an exhaust passage 33 extending in the vertical direction.
- the air heat exchanging unit 22 is configured such that when the casing 2 is viewed from the front direction F and the rear direction R, the casing 2 It is formed in a V shape that expands in the width direction. Therefore, the chilling unit 1 in which the air heat exchanging part 22 is positioned on the housing 2 has a drum-shaped shape in which an intermediate part along the height direction is constricted.
- the fan 30 includes a fan motor 35 that rotates the impeller 34.
- the fan motor 35 incorporates an inverter board (not shown) for variably controlling the rotational speed of the impeller 34.
- the fan motor 35 is supported via a fan base 36 between the upper ends of the air heat exchangers 29a and 29b so as to be positioned at the upper end of the exhaust passage 33.
- the impeller 34 of the fan 30 is covered with a fan cover 37.
- the fan cover 37 has a cylindrical exhaust port 38 facing the impeller 34.
- the air around the chilling unit 1 passes through the air heat exchangers 29a and 29b and is sucked into the exhaust passage 33.
- the air sucked into the exhaust passage 33 is sucked up toward the exhaust port 38 and discharged from the exhaust port 38 toward the upper side of the chilling unit 1.
- the inlets of the air heat exchangers 29 a and 29 b are connected in parallel to the second port 21 b of the four-way valve 21.
- the outlets of the air heat exchangers 29a and 29b are connected to the third port 21c of the four-way valve 21 via the expansion valves 23a and 23b, the receiver 24, and the water heat exchanger 25.
- the fourth port 21 d of the four-way valve 21 is connected to the suction side of the compressor 20 via a gas-liquid separator 26.
- outlet of the gas-liquid separator 26 is connected to the first port 21a of the four-way valve 21 via the bypass pipe 40.
- a normally closed solenoid valve 41 is provided in the middle of the bypass pipe 40.
- the water heat exchanger 25 includes a first refrigerant channel 25a, a second refrigerant channel 25b, and a water channel 25c.
- the first refrigerant flow path 25 a of the water heat exchanger 25 is connected to the receiver 24 and the third port 21 c of the four-way valve 21.
- the second refrigerant flow path 25b is connected to the receiver 24 of the second refrigerant circuit RB and the third port 21c of the four-way valve 21. Therefore, in the first refrigeration cycle unit 3, the first refrigerant circuit RA and the second refrigerant circuit RB share one water heat exchanger 25.
- the chilling unit 1 is equipped with two water heat exchangers 25.
- the chilling unit 1 of the present embodiment includes the first to fourth refrigerant circuits RA, RB, RC, and RD, there are four sets of air heat exchange units 22.
- the four air heat exchange units 22 are fixed in an upright posture on the upper frame 9 of the main frame 7 and are arranged in a line along the depth direction of the housing 2. Therefore, in the present embodiment, the four sets of air heat exchanging units 22 positioned immediately above the machine room 14 constitute the second section of the chilling unit 1.
- the bent one ends of the air heat exchangers 29a and 29b are respectively housings.
- the body 2 is exposed in the front direction F and the back direction R of the housing 2.
- one end of the two sets of air heat exchangers 29a and 29b positioned at both ends along the arrangement direction of the plurality of air heat exchange units 22 is a heat exchange surface exposed around the chilling unit 1. It has become.
- the air heat exchanging unit 22 positioned on the front end portion and the rear end portion of the housing 2 is in addition to the air sucked from the width direction of the chilling unit 1, respectively. Heat exchange can be performed using the air sucked from the front direction F and the back direction R.
- the upper frame 9 of the main frame 7 projects horizontally toward the back of the housing 2 from the lower frame 8.
- the rearmost air heat exchanging unit 22 located behind the housing 2 projects from the rear end of the housing 2 in the depth direction of the housing 2.
- the total length along the depth direction of the housing 2 is shorter than the total length along the alignment direction of the four air heat exchange units 22.
- a stepped portion 43 is formed behind the housing 2 as the first section, which is recessed from the rearmost air heat exchanging portion 22.
- the stepped portion 43 defines a space S1 that is continuously open to the side and the back of the housing 2, and the rearmost air heat exchanging portion 22 projects over the space S1.
- the space S1 is located below the bent end portions of the air heat exchangers 29a and 29b located on the most back side of the air heat exchange unit 22.
- the vertical rail 10 disposed at the rear end of the housing 2 is a center along the depth direction of the air heat exchangers 29 a and 29 b constituting the rearmost air heat exchanger 22. Or it is located in the back side of case 2 rather than the center. Thereby, the air heat exchangers 29a and 29b, which are heavy objects, can be stably supported by the main frame 7.
- various elements of the first refrigeration cycle unit 3 and the second refrigeration cycle unit 4 except for the four air heat exchange units 22 are the casing 2 Are accommodated in the machine room 14.
- the first refrigeration cycle unit 3 provided with the first refrigerant circuit RA and the second refrigerant circuit RB has, for example, the right half along the longitudinal direction of the machine room 14 when the casing 2 is viewed from the front F direction. Arranged in the area.
- the second refrigeration cycle unit 4 including the third refrigerant circuit RC and the fourth refrigerant circuit RD is along the longitudinal direction of the machine room 14 when the housing 2 is viewed from the front F direction, for example. It is arranged in the left half area.
- the two compressors 20, the two receivers 24, and the two gas-liquid separators 26 constituting the first refrigerant circuit RA and the second refrigerant circuit RB are arranged on the right side of the machine room 14. In the half area, it is installed on the bottom plate 13 so as to be arranged in a line along the depth direction of the housing 2. Furthermore, one water heat exchanger 25 shared by the first refrigerant circuit RA and the second refrigerant circuit RB is installed on the bottom plate 13 so as to be located at the rearmost part of the first refrigeration cycle unit 3. Yes.
- the two compressors 20, the two receivers 24, and the two gas-liquid separators 26 constituting the third refrigerant circuit RC and the fourth refrigerant circuit RD are arranged in the left half region of the machine room 14. It is installed on the bottom plate 13 so as to be arranged in a line along the depth direction of the body 2. Furthermore, one water heat exchanger 25 shared by the third refrigerant circuit RC and the fourth refrigerant circuit RD is installed on the bottom plate 13 so as to be located at the rearmost part of the second refrigeration cycle unit 4. Yes.
- the first refrigeration cycle unit 3 and the second refrigeration cycle unit 4 extend in the longitudinal direction of the casing 2 in the machine room 14, and It is lined up in the width direction.
- the two water heat exchangers 25 are arranged in the width direction of the housing 2 at a position that is biased toward the stepped portion 43 rather than an intermediate portion along the longitudinal direction of the housing 2.
- the water circuit 5 is accommodated in the machine room 14 together with the first refrigeration cycle unit 3 and the second refrigeration cycle unit 4.
- the water circuit 5 includes a variable capacity type water circulation pump 45 and first to fourth water pipes 46a, 46b, 46c, and 46d as main elements.
- the water circulation pump 45 is installed on the bottom plate 13 so as to be located at the rear end of the machine room 14. Therefore, the water circulation pump 45 is located between the two water heat exchangers 25 arranged in the width direction of the housing 2 and the stepped portion 43 behind the housing 2.
- the first water pipe 46 a is connected to the suction port of the water circulation pump 45.
- the second water pipe 46 b connects between the discharge port of the water circulation pump 45 and the water flow path 25 c of the water heat exchanger 25 corresponding to the first refrigeration cycle unit 3.
- the third water pipe 46 c connects in series between the water flow path 25 c of the water heat exchanger 25 of the first refrigeration cycle unit 3 and the water flow path 25 c of the water heat exchanger 25 of the second refrigeration cycle unit 4. is doing.
- the fourth water pipe 46 d is connected to the water flow path 25 c of the water heat exchanger 25 of the second refrigeration cycle unit 4.
- the water circulation pump 45 of the water circuit 5 and the two water heat exchangers 25 are adjacent to each other at the rear part of the machine room 14. Therefore, the first to fourth water pipes 46a, 46b, 46c, 46d of the water circuit 5 are concentrated on the rear end portion of the machine room 14, and the first to fourth water pipes 46a, 46b, 46c, 46d are connected. The length is shortened.
- the first water pipe 46a has a first connection end 48.
- the first connection end 48 includes, for example, a water pipe inlet 49 formed at the upstream end of the first water pipe 46 a and a strainer 50 connected to the water pipe inlet 49.
- the first connection end portion 48 projects from the rear end portion of the machine room 14 toward the stepped portion 43 behind the housing 2.
- the fourth water pipe 46 d has a second connection end 51.
- the second connection end 51 includes, for example, a water pipe outlet 52 formed at the downstream end of the fourth water pipe 46 d and a check valve 53 connected to the water pipe outlet 52.
- the second connection end portion 51 protrudes from the rear end portion of the machine room 14 toward the stepped portion 43 behind the housing 2.
- first connection end 48 and the second connection end 51 of the water circuit 5 are accommodated in the space S ⁇ b> 1 defined by the stepped portion 43. Therefore, most of the first connection end 48 and the second connection end 51 are in spite of the fact that the first connection end 48 and the second connection end 51 protrude behind the machine room 14. Is positioned directly below the rearmost air heat exchanger 22.
- the first connection end 48 of the first water pipe 46a is provided on the installation surface G via accessories (not shown) such as various valves and flexible joints. Is connected to a first on-site pipe 55 laid on the wall.
- the first on-site piping 55 is connected to a water outlet on the use device side such as an air conditioner.
- the second connection end 51 of the fourth water pipe 46d is, for example, a second field pipe laid on the installation surface G via accessories (not shown) such as various valves and flexible joints. 56.
- the 2nd site piping 56 is connected to the water inlet by the side of utilization equipment like an air conditioner, for example.
- a drain pan 60 that receives condensed water or the like dripping from the air heat exchangers 29 a and 29 b is disposed between the machine chamber 14 of the housing 2 and the four air heat exchange units 22. ing.
- the drain pan 60 of the present embodiment includes a pair of ridges 61 a and 61 b and a drain collection board 62.
- the eaves 61a and 61b are elements that extend straight along the arrangement direction of the four sets of air heat exchangers 22 so as to be positioned directly below the air heat exchangers 29a and 29b of each air heat exchanger 22. It is supported by the upper frame 9 of the housing 2.
- ⁇ 61a, 61b are arranged in parallel in the width direction of the housing 2 with a space between each other.
- the bottoms of the flanges 61a and 61b are inclined downward as they proceed from the front of the housing 2 toward the back.
- a ventilation path 63 is formed between the flanges 61a and 61b.
- the ventilation path 63 extends along the depth direction of the housing 2, and the machine chamber 14 and the exhaust passages 33 of the four air heat exchange units 22 communicate with each other through the ventilation path 63.
- the drain collection board 62 is supported by the upper frame 9 so as to straddle between the rear ends of the flanges 61a and 61b.
- the rear end portion of the drain collecting board 62 protrudes above the stepped portion 43 behind the housing 2. Further, the drain collection board 62 has a drain pipe connection port 64 opened to the step portion 43.
- the electrical unit 6 is located at the front end of the machine room 14 on the front side of the housing 2.
- the electrical unit 6 of this embodiment includes an electrical box 70 and a fan device 71.
- the electrical box 70 includes a main box 72, a first side box 73a, and a second side box 73b.
- the main box 72 is a substantially rectangular parallelepiped element and has a height dimension equivalent to that of the machine room 14.
- the left and right side surfaces of the main box 72 are separated from the side plate 12 of the housing 2 as approaching the bottom plate 13.
- the first side box 73 a and the second side box 73 b are box-shaped elements having a height dimension smaller than that of the main box 72 and have an elongated shape extending in the depth direction of the housing 2.
- the first side box 73 a protrudes from the lower part of the left side surface of the main box 72 toward the left side of the main box 72.
- the second side box 73 b protrudes from the lower part of the right side surface of the main box 72 toward the right side of the main box 72.
- the first side box 73a and the second side box 73b are fixed on the bottom plate 13 of the machine room 14, respectively.
- the casing 2 is tapered from the lower frame 8 toward the upper frame 9, so that the length of the machine room 14 along the width direction of the casing 2 is shown in FIG.
- the width of the machine room 14 is expanded from the upper part to the lower part. Therefore, the first side box 73a and the second side box 73b are housed in the lower part of the machine room 14 whose width is expanded.
- the front end portion of the machine room 14 can be effectively utilized as a storage space for the electrical box 70. Therefore, the internal volume of the electrical equipment box 70 can be sufficiently secured while suppressing the length of the electrical equipment box 70 along the depth direction of the housing 2.
- an air passage 74 as shown in FIG. 9 is formed in the main box 72.
- the air passage 74 is formed between a pair of partition plates 75 a and 75 b that partition the inside of the main box 72.
- the air passage 74 extends in the depth direction of the housing 2 at the center portion along the width direction of the main box 72 and is erected along the height direction of the main box 72.
- the lower end of the air passage 74 is opened at the bottom of the main box 72 and communicates with an intake hole 76 opened in the bottom plate 13 of the housing 2.
- the intake hole 76 communicates with a gap g between the bottom plate 13 and the installation surface G.
- the upper end of the air passage 74 is opened on the upper surface of the main box 72.
- the electrical box 70 accommodates various electrical components that control the operation of the first refrigeration cycle unit 3 and the second refrigeration cycle unit 4.
- An example of the electrical component includes a plurality of control boards that control the voltage and frequency applied to the compressor 20, a plurality of power modules such as inverters and converters, a plurality of smoothing capacitors, a plurality of reactors for power factor improvement, a plurality of reactors, and the like.
- a plurality of control boards and a plurality of power modules can be rephrased as heat generating components 78 that generate a large amount of heat during operation. Since the heat generating component 78 requires active heat dissipation, it is thermally connected to a plurality of heat sinks 79. The heat sink 79 penetrates the partition plates 75a and 75b and is exposed to the air passage 74.
- the fan device 71 of the electrical unit 6 is attached to the upper surface of the main box 72.
- the fan device 71 is configured to be able to exhaust heat generated from various electrical components (that is, heat-generating components) in the electrical box 70. Therefore, the fan device 71 includes an elongated box-shaped duct unit 81 and a heat exhaust fan unit 300 (see FIGS. 12 to 13) accommodated in the duct unit 81.
- the exhaust heat fan unit 300 includes a plurality (for example, three) of electric fans 82a, 82b, and 82c, a slider 302a that surrounds the electric fans 82a, 82b, and 82c, an operation panel 302c, It has.
- the plurality of electric fans 82a, 82b, and 82c are arranged in a line along the depth direction of the housing 2 (from the arrow F to the R direction).
- the duct unit 81 is provided at the central portion of the upper surface of the main box 72.
- the duct unit 81 is provided to face the opening of the air passage 74 described above.
- the duct unit 81 is configured to surround the opening of the air passage 74.
- the exhaust heat fan unit 300 is accommodated and disposed in an intermediate portion of the duct unit 81.
- the lower end of the duct unit 81 is positioned so as to partially enter the inside of the main box 72.
- the upper end of the duct unit 81 is positioned in a state in which it partially enters the exhaust passage 33 (see FIG. 9) of the air heat exchanging section 22 through between the flanges 61a and 61b.
- the duct unit 81 is configured by communicating the inside and the outside of the main box 72.
- the duct unit 81 is provided with a blowing part 301.
- the blowing unit 301 is configured to face directly above the exhaust heat fan unit 300. That is, the blowing unit 301 is configured from the exhaust heat fan unit 300 to the upper end of the duct unit 81. In such a configuration, the blowing unit 301 can discharge hot air in the electrical box 70) to the outside as a blowout port of the duct unit 81.
- the electric fans 82a, 82b, 82c are arranged in a line at intervals in the depth direction of the housing 2.
- the electric fans 82a, 82b, and 82c are incorporated in the duct unit 81 in a horizontal posture in which the rotation axis is vertically arranged so as to be positioned immediately above the air passage 74.
- the electric fans 82a, 82b, 82c all exhaust toward the upper side of the duct unit 81.
- the air flowing through the air passage 74 comes into contact with the heat sink 79 that receives heat from the heat generating component 78.
- the heat of the heat generating component 78 transmitted to the heat sink 79 is released by multiplying the air flow, and the heat generating component 78 is forcibly cooled.
- the air (hot air) that has passed through the air passage 74 is sucked up by the electric fans 82a, 82b, and 82c, and as shown by white arrows in FIG. Directly discharged to the exhaust passage 33 between 29a and 29b.
- the air discharged to the exhaust passage 33 is sucked up to the exhaust port 38 together with the air that has passed through the air heat exchangers 29a and 29b by the operation of the fan 30, and is discharged from the exhaust port 38 to the upper side of the chilling unit 1. . Therefore, air (hot air) after cooling the heat generating component 78 of the electrical unit 6 does not stay in the machine room 14.
- air outside the chilling unit 1 that is, outside air
- the air passage 74 in the electrical box 70 where the heat sink 79 is exposed from the air intake hole 76 Since the outside air contains dust and moisture, if the outside air that has passed through the air passage 74 is discharged into the machine chamber 14, it cannot be denied that dust accumulates in the machine chamber 14 at an early stage.
- the duct unit 81 that houses the electric fans 82a, 82b, and 82c is protruded into the exhaust passage 33 between the air heat exchangers 29a and 29b through the gaps 61a and 61b of the drain pan 60. Yes. Therefore, the outside air that has passed through the air passage 74 is discharged out of the chilling unit 1 from the exhaust port 38 of the air heat exchange unit 22 without passing through the machine room 14.
- the machine room 14 in the housing 2 is located inside the four air heat exchange units 22 through the ventilation path 63 between the pair of flanges 61 a and 61 b extending in the depth direction of the housing 2.
- the air in the machine chamber 14 can be forcibly sucked from the air passage 63 toward the exhaust passage 33 by using the fan 30 of the air heat exchange unit 22. Therefore, the air permeability of the machine room 14 is remarkably improved, and heat is hardly generated in the machine room 14.
- the fan device 71 on the main box 72 enters between the fences 61 a and 61 b of the drain pan 60, the ventilation path 63 generated between the fences 61 a and 61 b can be used as an installation space for the fan apparatus 71.
- the upper surface of the main box 72 can be made as close as possible to the flanges 61a and 61b, and the height of the main box 72 can be secured while suppressing the height dimension of the machine room 14.
- the main box 72 by increasing the height of the main box 72, it is possible to suppress the length of the main box 72 along the depth direction of the housing 2 while securing the internal volume of the main box 72. Therefore, the occupation area of the main box 72 in the machine room 14 can be reduced, which is convenient for shortening the total length along the depth direction of the casing 2 as the first section.
- the four-way valves 21 of the first to fourth refrigerant circuits RA, RB, RC, RD are shown by solid lines in FIG. As shown, the first port 21a is switched to communicate with the second port 21b, and the third port 21c is switched to communicate with the fourth port 21d.
- high-temperature and high-pressure gas-phase refrigerant is discharged to the circulation circuit 27 from the compressors 20 of the first to fourth refrigerant circuits RA, RB, RC, and RD.
- the high-temperature and high-pressure gas-phase refrigerant discharged from the compressor 20 is guided to the air heat exchangers 29a and 29b via the four-way valve 21.
- the gas-phase refrigerant led to the air heat exchangers 29a and 29b is condensed by heat exchange with the air passing through the air heat exchangers 29a and 29b by the operation of the fan 30, and is changed into a high-pressure liquid-phase refrigerant.
- the high-pressure liquid-phase refrigerant is depressurized in the process of passing through the expansion valves 23a and 23b, and changes to an intermediate-pressure gas-liquid two-phase refrigerant.
- the gas-liquid two-phase refrigerant is guided to the water heat exchanger 25 via the receiver 24.
- the first refrigerant circuit RA and the second refrigerant circuit RB share one water heat exchanger 25, and the third refrigerant circuit RC and the fourth refrigerant circuit RD share one other water heat.
- the exchanger 25 is shared. For this reason, in the first refrigerant circuit RA and the second refrigerant circuit RB, a gas-liquid two-phase refrigerant having an intermediate pressure is supplied to the first refrigerant channel 25a and the second refrigerant channel 25b of the water heat exchanger 25, respectively. It is guided and exchanges heat with water flowing through the water flow path 25c.
- the gas-liquid two-phase refrigerant flowing in the first refrigerant flow path 25a and the second refrigerant flow path 25b evaporates and receives heat from the water in the water flow path 25c, and the low-temperature and low-pressure gas-liquid is generated by latent heat of evaporation. Change to two-phase refrigerant.
- the water in the water flow path 25c becomes cold water by removing latent heat.
- the water flow path 25c of the water heat exchanger 25 shared by the first refrigerant circuit RA and the second refrigerant circuit RB is connected to the third refrigerant circuit RC and the fourth refrigerant circuit RD via the third water pipe 46c.
- the other water heat exchanger 25 to be shared is connected in series to the water flow path 25c.
- the water cooled in the water heat exchanger 25 shared by the first refrigerant circuit RA and the second refrigerant circuit RB is the other water shared by the third refrigerant circuit RC and the fourth refrigerant circuit RD.
- the water flow path 25c of the heat exchanger 25 heat exchange with the gas-liquid two-phase refrigerant flowing through the first refrigerant flow path 25a and the second refrigerant flow path 25b of the other water heat exchanger 25 again occurs. Chilled.
- the water cooled in two stages is supplied from the fourth water pipe 46d to the utilization device side via the second on-site pipe 56.
- the low-temperature and low-pressure gas-liquid two-phase refrigerant that has passed through each water heat exchanger 25 is guided to the gas-liquid separator 26 via the four-way valve 21, where it is separated into a liquid-phase refrigerant and a gas-phase refrigerant. .
- the gas-phase refrigerant separated from the liquid-phase refrigerant is sucked into the compressor 20 and again becomes a high-temperature / high-pressure gas-phase refrigerant and is discharged from the compressor 20 to the circulation circuit 27.
- the four-way valves 21 of the first to fourth refrigerant circuits RA, RB, RC, RD are shown in FIG. As indicated by a broken line, the first port 21a is switched to communicate with the third port 21c, and the second port 21b is switched to communicate with the fourth port 21d.
- the high-temperature and high-pressure gas-phase refrigerant compressed by the compressor 20 is guided to the water heat exchanger 25 via the four-way valve 21.
- the water flow path 25c of one water heat exchanger 25 shared by the first refrigerant circuit RA and the second refrigerant circuit RB, and the third refrigerant circuit RC and the fourth refrigerant circuit RD are shared. Since the water flow path 25c of the other one water heat exchanger 25 is connected in series, the water flowing through the water flow path 25c is the gas phase flowing through the first refrigerant flow path 25a and the second refrigerant flow path 25b. It is heated in two stages by heat exchange with the refrigerant. The water heated by receiving the heat of the gas-phase refrigerant is supplied from the fourth water pipe 46d to the utilization device side through the second on-site pipe 56.
- the high-pressure liquid-phase refrigerant that has passed through the water heat exchanger 25 is changed to an intermediate-pressure gas-liquid two-phase refrigerant in the process of passing through the receiver 24 and the expansion valves 23a and 23b, and is also introduced into the air heat exchangers 29a and 29b. It is burned.
- the gas-liquid two-phase refrigerant guided to the air heat exchangers 29a and 29b evaporates by heat exchange with the air passing through the air heat exchangers 29a and 29b by the operation of the fan 30, and the low-temperature and low-pressure gas-liquid two-phase refrigerant Change to refrigerant.
- the low-temperature and low-pressure gas-liquid two-phase refrigerant that has passed through the air heat exchangers 29a and 29b is guided to the gas-liquid separator 26 via the four-way valve 21, where it is separated into a liquid-phase refrigerant and a gas-phase refrigerant.
- the gas-phase refrigerant separated from the liquid-phase refrigerant is sucked into the compressor 20 and again becomes a high-temperature / high-pressure gas-phase refrigerant and is discharged from the compressor 20 to the circulation circuit 27.
- the first connection end 48 and the second connection end 51 of the water circuit 5 are respectively stepped from the machine chamber 14 of the housing 2 to the back of the housing 2. It protrudes toward 43.
- the step portion 43 is formed by making the length of the casing 2 as the first section shorter than the length of the four sets of air heat exchange portions 22 as the second section, and the rear end of the second section.
- the space S1 which is retracted from one air heat exchanging part 22 located in is defined.
- first connection end 48 and the second connection end 51 of the water circuit 5 protrude behind the machine room 14
- first connection end 48 and the second connection end 51 fits in the space S ⁇ b> 1 of the stepped portion 43 without projecting greatly behind the chilling unit 1.
- the chilling unit 1 when the chilling unit 1 is installed on the installation surface G on which the first and second site pipes 55 and 56 are laid, the chilling unit 1 can be brought close to the first and second site pipes 55 and 56. It becomes.
- the space required for installation of the chilling unit 1 can be reduced, and the installation operation of the chilling unit 1 can be performed without difficulty even in a small space.
- the upper end portion of the main box 72 accommodated in the machine room 14 is protruded into the exhaust passage 33 inside the air heat exchanging portion 22 through the pair of flanges 61a and 61b.
- the length of the main box 72 along the depth direction of the housing 2 can be shortened while securing the internal volume of the main box 72.
- the area occupied by the main box 72 with respect to the machine room 14 is shortened in the depth direction of the housing 2, which effectively contributes to shortening the length dimension along the depth direction of the housing 2.
- an inverter board that controls the rotational speed of the impeller 34 of the fan 30 is built in the fan motor 35. As a result, it is not necessary to secure a space for housing the inverter board in the electrical box 70, and the length of the electrical box 70 can be suppressed.
- the length of the casing 2 as the first section can be made sufficiently shorter than the length of the air heat exchanging portion 22 as the second section, and the water circuit 5 is placed behind the casing 2.
- a step 43 having a space S1 for accommodating the first connection end 48 and the second connection end 51 can be easily obtained.
- FIG. 10 discloses a second embodiment.
- the second embodiment discloses a chilling unit 100 of a pumpless specification.
- the water circulation pump 45 is excluded from the water circuit 5, and the configuration of the chilling unit 100 other than that is basically the same as that of the first embodiment. Therefore, in the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
- an empty space is generated at the rear end portion of the machine room 14 in which the water circulation pump is accommodated, so that the first connection end of the water circuit 5 is formed in the empty space.
- the part 48 and the second connection end 51 are accommodated. Therefore, in the present embodiment, the first site piping 55 enters the stepped portion 43 behind the housing 2, and the second site piping 56 approaches the stepped portion 43 as compared to the first embodiment. Yes.
- the first on-site piping 55 can be routed using the space S1 defined by the stepped portion 43.
- the housing 2 of the chilling unit 100 is connected to the first site piping 55 and the second site until the first site piping 55 enters the stepped portion 43 and the second site piping 56 approaches the stepped portion 43. It can be brought closer to the pipe 56 side.
- FIG. 11 discloses a third embodiment.
- the first step portion 201 is formed behind the housing 2 as the first section, and the second step portion 202 is formed on the front side of the housing 2. ing.
- the first step portion 201 has a space S2 continuously opened toward the side and the back of the housing 2, and the first connection end portion 48 and the second connection portion 48 of the water circuit 5 are provided in the space S2. A connecting end 51 is located.
- the second stepped portion 202 has a space S3 continuously opened toward the side and the front of the housing 2, and an optional component 203 such as a piping kit is positioned in the space S3. Yes.
- the second stepped portion 202 located on the front side of the housing 2 can be used as an arrangement space for the optional component 203, and the periphery of the housing 2 can be used effectively.
- the exhaust heat fan unit 300 (fan device 71) generates an air flow inside the electrical box 70, thereby exhausting hot air inside the electrical box 70 outside the machine. It is configured to be possible (in other words, the inside of the electrical box 70 can be cooled (air cooled)).
- the duct unit 81 (fan device 71, exhaust heat fan unit 300) is provided in the central portion of the upper surface of the electrical box 70 (see FIGS. 6, 8, and 9).
- the exhaust heat fan unit 300 (electric fans 82a, 82b, 82c) can be independently operated. As a result, the exhaust heat operation for the inside of the electrical unit 6 (the electrical box 70) can be maintained or continued.
- the arrangement of the fan device 71 (the duct unit 81 and the exhaust heat fan unit 300) is not limited to the central portion of the upper surface of the electrical box 70.
- the fan device 71 can be disposed on the side surface or the lower surface of the electrical box 70, for example, as long as hot air emitted from various electrical components (heat generating components) in the electrical box 70 can be exhausted.
- the exhaust heat fan unit 300 described above is configured to be drawable from the duct unit 81 (that is, can be pulled out of the housing 2). Thereby, the freedom degree of arrangement
- the chilling unit 1 of this embodiment has a loading / unloading mechanism 302.
- the taking in / out mechanism 302 is configured to be able to pull out or insert (push in) the exhaust heat fan unit 300 with respect to the duct unit 81.
- the exhaust heat fan unit 300 is pulled out from the duct unit 81. As a result, the exhaust heat fan unit 300 can be pulled out of the housing 2. On the other hand, the exhaust heat fan unit 300 is inserted (pushed in) into the duct unit 81. Thereby, the exhaust heat fan unit 300 can be accommodated in the duct unit 81 so that it can be taken in and out.
- the loading / unloading mechanism 302 includes a slider 302a, a guide rail 302b (see FIG. 18), and an operation panel 302c.
- the slider 302a is configured to be able to mount the exhaust heat fan unit 300.
- the sliders 302 a are provided in parallel on the left and right sides of the exhaust heat fan unit 300.
- the slider 302a is arranged in parallel along the depth direction of the housing 2 (from the arrow F to the R direction).
- the slider 302a is configured to reciprocate along the guide rail 302b.
- the guide rails 302b are provided in parallel to each other along both sides of the duct unit 81.
- the guide rail 302b is disposed to face the slider 302a. That is, the guide rail 302b is disposed in parallel along the depth direction of the housing 2 (the direction from the arrow F to the R).
- the operation panel 302 c is connected to the slider 302 a from the front direction F of the housing 2 and constitutes the front surface of the exhaust heat fan unit 300.
- the operation panel 302c is provided with a handle portion 302d that can be grasped by a worker with fingers.
- the front direction F of the housing 2 is covered with a front plate 303 and an upper plate 304.
- the upper plate 304 is detachably attached to the upper side of the front plate 303. In a state where the upper plate 304 is attached to the housing 2, the operation panel 302 c is maintained in a state of being isolated from the outside by the upper plate 304.
- the worker removes the upper plate 304 from the housing 2, and then grasps the grip portion 302d with fingers and pulls it out to the front. Thereby, the slider 302a moves along the guide rail 302b, and the heat exhaust fan unit 300 is pulled out from the duct unit 81 together with the slider 302a.
- the exhaust heat fan unit 300 can be pulled out from the duct unit 81 so that the exhaust heat fan unit 300 can be pulled out of the housing 2.
- positioning of the fan apparatus 71 can be improved.
- the fan device 71 can be arranged in a place where it could not be installed because maintenance was difficult in the past.
- the above-described configuration of the loading / unloading mechanism 302 is merely an example, and the loading / unloading mechanism 302 may be realized by another configuration.
- the chilling unit 1 of the present embodiment includes the fan device 71 (the duct unit 81 and the exhaust heat fan unit 300), the partition bases 305 and 306, the cover 307, and the current plate. 308.
- Partition base 305,306 The partition bases 305 and 306 are disposed between the air heat exchange unit 22 and the housing 2 (machine room 14). One partition base 305, 306 is provided at the lower end of each air heat exchange unit 22. The partition bases 305 and 306 are configured to cover the entire lower end of the air heat exchange unit 22. The partition bases 305 and 306 are configured over a wider range than the lower end of the exhaust passage 33 (see FIG. 9). The partition bases 305 and 306 extend between the pair of flanges 61a and 61b.
- the partition bases 305 and 306 are configured to have downwardly inclined surfaces M1 and M2 from the central portion in the left-right direction toward the left and right sides.
- One end of each of the inclined surfaces M1 and M2 is positioned at the central portion of the partition bases 305 and 306.
- the other ends of the inclined surfaces M1 and M2 are positioned on both sides of the partition bases 305 and 306 (that is, the flanges 61a and 61b).
- the left and right sides of the partition bases 305 and 306 (the other ends of the inclined surfaces M1 and M2) are formed with stepped portions 306b that are lowered downward.
- the passages 309 are provided at intervals.
- the passage 309 is configured by penetrating the partition bases 305 and 306.
- the stepped portions 306b formed on both sides of the partition bases 305 and 306 are in contact with a part of the lower ends of the air heat exchangers 29a and 29b of the heat exchanging portion 22 disposed above.
- the air heat exchangers 29a and 29b are arranged apart from each other. Thereby, in the contact part of the air heat exchangers 29a and 29b and the partition bases 305 and 306, favorable drainage can be ensured without obstructing the flow of rain water or drain water due to surface tension or the like. Further, it is possible to suppress the growth of frost and freezing under cold conditions, and it is possible to prevent a decrease in heat exchange performance.
- water for example, rainwater
- the water that has flowed down falls from the passages 309 of the step portions 306b on both sides of the partition bases 305 and 306 to the eaves 61a and 61b.
- the dropped water flows through the troughs 61a and 61b and is then drained through the drain collecting board 62 described above.
- rainwater for example, rainwater blown into the exhaust passage 33 described above, rainwater that has flowed down through the air heat exchanger 22, or the like is assumed.
- the duct unit 81 is penetrated and supported by the partition base 306 between the electrical equipment unit 6 (the electrical equipment box 70) and the air heat exchange unit 22. Yes.
- the duct unit 81 is provided in the central portion of the partition base 306.
- the duct unit 81 is configured to protrude to both sides (upper side and lower side) of the partition base 306.
- the upper side of the partition base 306 refers to the side on which the air heat exchange unit 22 (exhaust passage 33) is disposed.
- the lower side of the partition base 306 refers to the side on which the housing 2 (the electrical unit 6 (the electrical box 70)) is disposed.
- the upper duct unit 81 of the partition base 306 is referred to as an upper duct 310
- the lower duct unit 81 of the partition base 306 is referred to as a lower duct 311.
- the above-described blowing part 301 can be defined as an opening (blow-out opening) of the duct unit 81 (that is, the upper duct 310 and the lower duct 311).
- the cover 307 is disposed so as to cover the blowing portion 301, that is, the opening (blow-out port) of the duct unit 81 (the upper duct 310 and the lower duct 311).
- the upper part of the blowing part 301 that is, the upper part of the duct unit 81 (the upper duct 310 and the lower duct 311) is covered with the cover 307.
- the cover 307 is provided at a position separated from the blowing portion 301 (duct unit 81).
- the cover 307 and the blowing portion 301 (duct unit 81) have a non-contact positional relationship (see FIGS. 18 to 19).
- the cover 307 may be set to be supported by the duct unit 81 (particularly, the upper duct 310) or may be set to be supported by the partition base 306, for example. Good.
- the cover 307 has a contour having a downward slope from the central portion toward both sides.
- the cover 307 includes a front surface 307a (hereinafter referred to as a cover surface) and a back surface 307b (hereinafter referred to as a cover back surface).
- the cover surface 307a and the cover back surface 307b are configured to face each other in parallel.
- the cover surface 307 a and the cover back surface 307 b have a shape along the outline of the cover 307. That is, the cover surface 307a and the cover back surface 307b have a downward slope from the central portion toward both sides.
- the central portion of the cover 307 refers to a portion extending in parallel along the depth direction of the housing 2 (from the arrow F to the R direction).
- the central portion of the cover 307 and the central portion of the partition base 306 described above are positioned parallel to each other vertically when viewed in the direction of gravity.
- the both sides of the cover 307 indicate portions that are approaching from the central portion toward the base surface (the inclined surfaces M1 and M2) of the partition base 306.
- water for example, rainwater
- water that falls or adheres to the cover surface 307a flows down along the cover surface 307a.
- the water that has flowed down falls from both sides of the cover surface 307a to the base surface (inclined surfaces M1, M2).
- the dropped water flows down along the base surface (inclined surfaces M1, M2).
- the water that has flowed down falls from the passages on both sides of the base surface (the other ends of the inclined surfaces M1 and M2) to the eaves 61a and 61b.
- the dropped water flows through the troughs 61a and 61b and is then drained through the drain collecting board 62 described above.
- the hot air flows from the central portion of the cover back surface 307b toward both sides.
- the hot air that has flowed to both sides flows between the cover back surface 307 b and the duct unit 81 (specifically, the upper duct 310), and then flows out from both sides of the cover 307.
- the rectifying plate 308 is disposed away from both sides of the cover 307 by a predetermined distance.
- One rectifying plate 308 is provided at a position facing both sides of the cover 307.
- the rectifying plates 308 are arranged one by one on the base surface (inclined surfaces M1 and M2) of the partition base 306.
- the rectifying plates 308 have a positional relationship facing each other in parallel.
- the rectifying plate 308 is raised from the base surface (inclined surfaces M1, M2) toward the exhaust passage 33 described above.
- the current plate 308 a part of the hot air flowing out from both sides of the cover 307 flows along the base surface (the inclined surfaces M1 and M2).
- the hot air reaches the air heat exchanging unit 22 directly. If it does so, there exists a possibility that the exchange efficiency of the air heat exchange part 22 may fall with the hot air which reached
- the rectifying plate 308 described above is disposed. For this reason, the flow direction of the hot air flowing out from both sides of the cover 307 is restricted by the current plate 308. That is, the hot air is regulated in a direction that avoids the air heat exchange unit 22. In other words, the hot air does not reach the air heat exchange unit 22 directly. Thereby, the exchange efficiency of the air heat exchange part 22 can be maintained constant.
- a flow path 312 is provided in the rectifying plate 308 toward the base surface (inclined surfaces M1, M2) of the partition base 306.
- the flow path 312 is configured to penetrate the rectifying plate 308.
- a plurality of flow paths 312 are arranged along the current plate 308. In this case, when the water (rain water) that has fallen from both sides of the cover surface 307 a to the base surface (inclined surfaces M 1 and M 2) reaches the current plate 308, it passes through the plurality of flow paths 312. Thus, the water flows down along the base surfaces (inclined surfaces M1 and M2) smoothly and without leakage without being blocked by the current plate 308.
- the chilling unit 1 of the present embodiment is assembled so as to be separable (separable). That is, the chilling unit 1 includes an upper section 1a that is a second section located at the upper portion and a lower section 1b that is a first section located at the lower portion. The upper section 1a can be connected (integrated) to the lower section 1b so as to be separable (split).
- the above-described fan device 71 can be separated (divided) into an upper fan device 71a and a lower fan device 71b, and is an upper fan relative to the lower fan device 71b.
- the device 71a is configured to be connectable.
- the upper section 1a includes, for example, an upper fan device 71a and an air heat exchange unit 22.
- the lower section 1b includes, for example, a lower fan device 71b and a housing 2 (machine room 14 (electrical unit 6)).
- the above-described duct unit 81 can be separated (divided) into an upper duct 310 and a lower duct 311, and the upper duct 310 can be connected to the lower duct 311. Yes.
- the above-described partition base 306 is interposed between the upper duct 310 and the lower duct 311.
- the upper duct 310 is disposed on the upper side of the partition base 306.
- the upper duct 310 is fixed to the base surface (inclined surfaces M1 and M2) of the partition base 306.
- the upper duct 310 is raised from the base surface (inclined surfaces M1, M2) toward the exhaust passage 33 described above.
- the cover 307 described above is supported by either the upper duct 310 or the partition base 306.
- the lower duct 311 is disposed on the lower side (that is, the back side) of the partition base 306.
- the lower duct 311 is maintained in a state separated from the upper duct 310 and the partition base 306.
- the lower duct 311 is supported by the support plate 313.
- the support plate 313 is fixed to the housing 2.
- the lower duct 311 is fixed to the housing 2 via the support plate 313.
- the upper duct 310 and the lower duct 311 each have a hollow rectangular shape.
- the upper duct 310 has a hollow upper opening 310a.
- the lower duct 311 has a hollow lower opening 311a.
- the partition base 306 has a hollow base opening 306a at the center thereof.
- the base opening 306a is configured to penetrate the partition base 306.
- the base opening 306a communicates with the upper opening 310a and the lower opening 311a so as to face each other.
- a rectangular base opening 306a is shown as an example.
- the above-described blowout portion 301 (opening of the duct unit 81 (outlet)) is constituted by an upper opening 310a, a base opening 306a, and a lower opening 311a.
- the upper opening 310a, the base opening 306a, and the lower opening 311a are mutually connected (connected) in this order, so that a series of blowing portions 301 is configured.
- an upper duct 310, a partition base 306, and a cover 307 are set as main components.
- the upper duct 310 and the cover 307 are supported by the partition base 306.
- the partition base 306 is fixed to the lower end of the air heat exchange unit 22 (upper section 1a).
- the lower fan device 71b has, for example, a lower duct 311 and an exhaust heat fan unit 300 (electric fans 82a, 82b, 82c) as main components.
- the exhaust heat fan unit 300 (electric fans 82 a, 82 b, 82 c) is housed in the lower duct 311. Note that, in the specification to which the loading / unloading mechanism 302 of the second embodiment is applied, the exhaust heat fan unit 300 (electric fans 82a, 82b, and 82c) is accommodated in the lower duct 311 by the loading / unloading mechanism 302 so as to be removable. .
- the upper section 1a is connected to the lower section 1b.
- the air heat exchange part 22 is arrange
- the upper fan device 71a and the lower fan device 71b are combined with each other.
- the upper duct 310 and the lower duct 311 are connected to each other.
- the upper duct 310 is fixed to the base surface (inclined surfaces M1 and M2) of the partition base 306. Therefore, the lower duct 311 is connected to the lower part (that is, the back surface) of the partition base 306.
- the upper opening 310a of the upper duct 310, the base opening 306a of the partition base 306, and the lower opening 311a of the lower duct 311 are connected to each other in this order. That is, the upper opening 310a, the base opening 306a, and the lower opening 311a are continuous with each other in this order.
- the chilling unit 1 in which a series of blowing parts 301 is configured is assembled.
- the fan device 71 (upper section 1a) is separated (divided) into the upper fan device 71a (upper duct 310) and the lower fan device 71b (lower duct 311).
- the upper section 1a and the lower section 1b can be assembled separately. That is, the assembly process of the upper section 1a and the assembly process of the lower section 1b can be performed independently of each other.
- the upper section 1a and the lower section 1b can be connected (integrated) safely and accurately in a short time.
- the chilling unit 1 of the present embodiment has a cushioning material 314.
- the cushioning material 314 is disposed between the upper section 1a and the lower section 1b.
- the cushioning material 314 when the upper section 1a and the lower section 1b are connected, the cushioning material 314 is elastically deformed. At this time, the shock at the time of connection is absorbed and removed by the buffer material 314. Thus, it is possible to prevent the occurrence of a situation in which the components (for example, the upper duct 310 and the lower duct 311) of the upper section 1a and the lower section 1b are deformed or damaged (broken) due to an impact at the time of connection.
- the cushioning material 314 is elastically deformed, manufacturing intersections or design intersections are absorbed and removed. For this reason, it is not necessary to increase the connection accuracy between the upper section 1a and the lower section 1b. In other words, a high level of skill is not required when connecting (assembling) the upper section 1a and the lower section 1b. Thus, the assemblability of the upper section 1a and the lower section 1b can be greatly improved.
- the buffer material 314 the sealing performance between the upper section 1a and the lower section 1b can be improved.
- the buffer material 314 is disposed between the upper duct 310 and the lower duct 311. Thereby, the buffer material 314 is elastically deformed in a state where the upper duct 310 and the lower duct 311 are connected. As a result, the buffer material 314 is closely attached between the upper duct 310 and the lower duct 311 without a gap.
- a buffer material 314 is provided along the upper end of the rectangular lower duct 311.
- the cushioning material 314 has no gap between the upper end of the lower duct 311 and the lower portion (back surface) of the partition base 306. In close contact. Thereby, a series of blowing parts 301 excellent in sealing performance can be realized. Thus, the sealing performance of the blowing part 301 is kept constant.
- the chilling unit 1 of the present embodiment has a water receiving mechanism.
- the water receiving mechanism is provided inside the blowing part 301 (duct unit 81) described above.
- the water receiving mechanism prevents, for example, water (for example, rainwater) existing in the upper section 1a (air heat exchange unit 22) from entering the lower section 1b (machine room 14 (electrical unit 6)). It is configured to be possible.
- the water receiving mechanism includes a water receiving shelf 315.
- the water receiving shelf 315 is configured to protrude toward the inside of the blowing portion 301 (duct unit 81).
- the water receiving shelf 315 is continuously configured along the inside of the blowing part 301 (duct unit 81).
- the water receiving shelf 315 is configured to continuously cover a part of the inside of the opening of the blowing part 301 (duct unit 81).
- the water receiving shelf 315 protrudes with a horizontal angle or an angle of ascending slope.
- the angle of upward gradient refers to an inclination angle directed in a direction between the horizontal direction and the vertical direction.
- the upper opening 310 a of the upper duct 310 is set larger (wider) than the base opening 306 a of the partition base 306.
- the base opening 306 a of the partition base 306 is set smaller (narrower) than the upper opening 310 a of the upper duct 310.
- the upper duct 310 is configured to be larger (wider) than the base opening 306 a, or the base opening 306 a is configured to be smaller (narrower) than the upper duct 310.
- a water receiving shelf 315 is realized inside the lower end of the upper duct 310 and partially covering the inner side of the lower end of the upper opening 310a.
- the water receiving shelf 315 has a structure that protrudes inward (protrudes) from the upper opening 310 a of the upper duct 310.
- the partition base 306 is configured to have a downward slope from the central portion toward both sides. Therefore, the water receiving shelf 315 using a part of the water receiving shelf 315 is configured to have an upward inclination angle toward the inside of the upper opening 310a.
- a water storage structure is realized by a combination of the water receiving shelf 315 and the upper duct 310.
- the water storage structure is configured such that a certain amount of water can be temporarily stored by the cooperation of the water receiving shelf 315 and the upper duct 310.
- the water receiving mechanism has a function as a water storage structure.
- the chilling unit 1 of the present embodiment has a water draining mechanism.
- the drainage mechanism is configured to be able to extract water (for example, rainwater) stored by the above-described water receiving mechanism (specifically, the above-described water storage structure).
- the water drain mechanism includes a water drain passage 316.
- the drainage passage 316 is provided in the duct unit 81 (specifically, the above-described upper duct 310).
- the drainage passage 316 is provided along the lower end of the upper duct 310 with an interval.
- the drainage passage 316 is configured to penetrate the lower end of the upper duct 310.
- the drainage passage 316 is penetrated toward the base surface (the inclined surfaces M1 and M2) of the partition base 306.
- the water (rain water) stored by the water storage structure passes through the drain passage 316 and is extracted to the base surface (inclined surfaces M1, M2).
- the extracted water flows down along the base surface (inclined surfaces M1, M2).
- the water that has flowed down falls from the passages on both sides of the partition base 306 (the other ends of the inclined surfaces M1 and M2) to the flanges 61a and 61b.
- the dropped water flows through the troughs 61a and 61b and is then drained through the drain collecting board 62 described above.
- the water (rain water) stored by the water receiving mechanism is drained from the drainage passage 316.
- the stored water (rain water) can be prevented from overflowing from the water storage structure and falling into the blowout portion 301 (upper opening 310a, base opening 306a, lower opening 311a).
- the water can be prevented from entering the lower section 1b (machine room 14 (electrical unit 6)).
- the pressure state is inverted above and below the exhaust heat fan unit 300 (electric fans 82a, 82b, 82c).
- the lower side of the exhaust heat fan unit 300 (the electric fans 82a, 82b, 82c), that is, the inside of the electrical unit 6 (the electrical box 70) has a negative pressure.
- the pressure state of the exhaust heat fan unit 300 (electric fans 82a, 82b, and 82c), that is, the blowing portion 301 is positive.
- the power supply box 70 is disposed on the bottom plate of the machine room 14, but the main box 7 disposed in the machine room 14 without the bottom plate is provided.
- the main box 72 may be fixed directly.
- drain pan 70: Electrical box, 71: Fan device, 72: Main box, 81: Duct unit, 300: Exhaust heat fan unit, 305,306 ... Partition base, 310 ... Upper duct, 311 ... Lower duct, 310a ... Upper opening, 311a ...beneath Opening, 306a ... Base opening, 306b ... Step part, 314 ... Buffer material, 315 ... Water receiving shelf (water receiving mechanism), 316 ... Water draining passage (water draining mechanism).
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Abstract
A refrigeration device according to one embodiment of the present invention has: an electrical box (electrical unit 6) that is disposed in a machine chamber, includes a compressor, and controls a refrigeration cycle operation; and a fan device capable of exhausting heat emitted from heat generating components inside the electrical box. The fan device is provided with: a heat exhausting fan unit 300 capable of generating a flow of air inside the electrical box; and a duct unit 81 capable of exhausting heat from within the electrical box through the flow of air. The heat exhausting fan unit is accommodated in the duct unit.
Description
本発明の実施形態は、水配管の接続端部が機械室の外に突出された冷凍サイクル装置に関する。更に、本発明の実施形態は、排熱性(メンテナンス性)および組立性に優れた冷凍サイクル装置に関する。
Embodiment of this invention is related with the refrigerating-cycle apparatus by which the connection edge part of water piping protruded out of the machine room. Furthermore, the embodiment of the present invention relates to a refrigeration cycle apparatus excellent in exhaust heat performance (maintenability) and assemblability.
例えば冷水もしくは温水を生成する空冷ヒートポンプ式チリングユニットは、各種の冷凍サイクル構成部品が収容された機械室を有する第1のセクションと、複数の空気熱交換部が一列に並べられた第2のセクションと、を備えている。
For example, an air-cooled heat pump chilling unit that generates cold water or hot water includes a first section having a machine room in which various refrigeration cycle components are accommodated, and a second section in which a plurality of air heat exchange units are arranged in a row. And.
第2のセクションは、第1のセクションの上に重ねて配置されている。第1のセクションおよび第2のセクションは、夫々チリングユニットの奥行き方向に延びた細長い形状を有するとともに、その長手方向に沿う全長が略同一に設定されている。
The second section is placed on top of the first section. Each of the first section and the second section has an elongated shape extending in the depth direction of the chilling unit, and the entire length along the longitudinal direction is set to be substantially the same.
このため、第1のセクションおよび第2のセクションの長手方向に沿う両端部は、チリングユニットの高さ方向に沿うように連続して起立されており、第1のセクションの長手方向に沿う一方の端部から水配管の接続端部が突出されている。
For this reason, both end portions along the longitudinal direction of the first section and the second section are continuously raised along the height direction of the chilling unit, and one end portion along the longitudinal direction of the first section The connecting end of the water pipe protrudes from the end.
従来の空冷ヒートポンプ式チリングユニットでは、当該チリングユニットが納入される現場において、水配管の接続端部と現場に敷設された現場配管との間を各種のバルブやフレキシブルジョイントを用いて接続することが一般的である。
In the conventional air-cooled heat pump chilling unit, at the site where the chilling unit is delivered, the connection end of the water piping and the site piping laid on the site can be connected using various valves and flexible joints. It is common.
しかしながら、水配管の接続端部は、第1のセクションの一方の端部からチリングユニットの外に突出しているので、各種のバルブやフレキシブルジョイントがチリングユニットの周囲に大きく張り出すのを否めない。
However, since the connection end of the water pipe protrudes from the one end of the first section to the outside of the chilling unit, it is inevitable that various valves and flexible joints project over the chilling unit.
この結果、現場配管とチリングユニットとの間に少なくとも数百mm程度の距離が必要となり、チリングユニットを据え付けるスペースが大きくなる一つの要因となっている。
As a result, a distance of at least several hundred mm is required between the on-site piping and the chilling unit, which is one factor that increases the space for installing the chilling unit.
更に、近年では、空気熱交換部用のファンが停止しても電装ユニット内の排熱が確保できること、かかる排熱構成のメンテナンスが容易であること、並びに、空気熱交換部の筐体に対する組み立てがし易いこと、などが要求されている。
Further, in recent years, it is possible to ensure exhaust heat in the electrical unit even if the fan for the air heat exchanging unit stops, easy maintenance of the exhaust heat configuration, and assembly of the air heat exchanging unit to the housing. It is required to be easy.
本発明の目的は、据え付けに必要なスペースを削減することができ、狭小なスペースであっても無理なく据え付けることができる冷凍サイクル装置を得ることにある。
An object of the present invention is to obtain a refrigeration cycle apparatus that can reduce the space required for installation and can be installed without difficulty even in a narrow space.
更に、本発明の目的は、排熱性(メンテナンス性)および組立性に優れた冷凍サイクル装置を得ることにある。
Furthermore, an object of the present invention is to obtain a refrigeration cycle apparatus excellent in exhaust heat (maintenance) and assemblability.
一実施形態によれば、冷凍サイクル装置は、機械室に配置され、圧縮機を含む、冷凍サイクル動作を制御する電装ボックスと、電装ボックスの内部の発熱部品から発せられる熱気を排熱可能なファン装置と、を有する。ファン装置は、電装ボックスの内部に空気の流れを発生可能な排熱ファンユニットと、空気の流れによって、電装ボックスの内部の熱気を排熱可能なダクトユニットと、を備える。排熱ファンユニットは、ダクトユニットに収容されている。
According to one embodiment, a refrigeration cycle apparatus includes an electric box that controls a refrigeration cycle operation and includes a compressor, and a fan capable of exhausting hot air generated from heat-generating components inside the electric box. And a device. The fan device includes an exhaust heat fan unit capable of generating an air flow inside the electrical equipment box, and a duct unit capable of exhausting hot air inside the electrical equipment box by the air flow. The exhaust heat fan unit is accommodated in the duct unit.
「第1の実施形態」
以下、第1の実施形態について図1ないし図9を参照して説明する。 “First Embodiment”
Hereinafter, a first embodiment will be described with reference to FIGS.
以下、第1の実施形態について図1ないし図9を参照して説明する。 “First Embodiment”
Hereinafter, a first embodiment will be described with reference to FIGS.
図1ないし図3は、例えば冷水もしくは温水を生成する空冷ヒートポンプ式チリングユニットの斜視図、図4は、空冷ヒートポンプ式チリングユニットの側面図、図5は、空冷ヒートポンプ式チリングユニットの冷凍サイクルを示す回路図である。
1 to 3 are perspective views of an air-cooled heat pump chilling unit that generates, for example, cold water or hot water, FIG. 4 is a side view of the air-cooled heat pump chilling unit, and FIG. 5 is a refrigeration cycle of the air-cooled heat pump chilling unit. It is a circuit diagram.
空冷ヒートポンプ式チリングユニットは、例えば冷却モードおよび加熱モードで運転が可能な冷凍サイクル装置の一例であって、空冷ヒートポンプ式熱源機と言い換えることができる。以下の説明では、空冷ヒートポンプ式チリングユニットを単にチリングユニットと称する。
The air-cooled heat pump chilling unit is an example of a refrigeration cycle apparatus that can be operated in a cooling mode and a heating mode, for example, and can be rephrased as an air-cooled heat pump heat source machine. In the following description, the air-cooled heat pump chilling unit is simply referred to as a chilling unit.
図1ないし図4に示すように、チリングユニット1は、筐体2、第1の冷凍サイクルユニット3、第2の冷凍サイクルユニット4、水回路5および電装ユニット6を主要な要素として備えている。
As shown in FIGS. 1 to 4, the chilling unit 1 includes a housing 2, a first refrigeration cycle unit 3, a second refrigeration cycle unit 4, a water circuit 5, and an electrical unit 6 as main elements. .
筐体2は、第1のセクションの一例であって、例えば建屋の屋上のような水平な設置面Gの上に据え付けられている。筐体2は、奥行き寸法が幅寸法よりも格段に大きな細長い中空の箱状に形成されている。
The housing 2 is an example of a first section, and is installed on a horizontal installation surface G such as a building roof. The casing 2 is formed in an elongated hollow box shape whose depth dimension is much larger than the width dimension.
図2ないし図4に示すように、筐体2は、メインフレーム7を備えている。メインフレーム7は、下フレーム8、上フレーム9および複数の縦桟10で構成されている。下フレーム8および上フレーム9は、筐体2の奥行き方向に延びた細長い矩形状である。筐体2の奥行き方向に沿う下フレーム8の長さL1は、筐体2の奥行き方向に沿う上フレーム9の長さL2よりも短い。さらに、筐体2の幅方向に沿う上フレーム9の長さL3は、筐体2の幅方向に沿う下フレーム8の長さL4よりも短い。
As shown in FIGS. 2 to 4, the housing 2 includes a main frame 7. The main frame 7 includes a lower frame 8, an upper frame 9 and a plurality of vertical bars 10. The lower frame 8 and the upper frame 9 are elongated rectangular shapes extending in the depth direction of the housing 2. The length L1 of the lower frame 8 along the depth direction of the housing 2 is shorter than the length L2 of the upper frame 9 along the depth direction of the housing 2. Further, the length L3 of the upper frame 9 along the width direction of the housing 2 is shorter than the length L4 of the lower frame 8 along the width direction of the housing 2.
縦桟10は、下フレーム8と上フレーム9との間を連結する要素であって、筐体2の奥行き方向に互いに間隔を存して配列されている。筐体2の幅方向に向かい合う縦桟10は、下フレーム8から上フレーム9の方向に進むに従い互いに近づくように傾いている。
The vertical beam 10 is an element that connects the lower frame 8 and the upper frame 9, and is arranged at intervals in the depth direction of the housing 2. The vertical rails 10 facing the width direction of the housing 2 are inclined so as to approach each other as they proceed from the lower frame 8 to the upper frame 9.
このため、図2および図3に示すように、筐体2を正面の方向Fおよび背面の方向Rから見た時に、メインフレーム7は、下フレーム8から上フレーム9に向けて筐体2の幅方向に沿う寸法が次第に狭まるような先細り状に形成されている。
For this reason, as shown in FIGS. 2 and 3, when the housing 2 is viewed from the front direction F and the back direction R, the main frame 7 moves from the lower frame 8 toward the upper frame 9. It is formed in a tapered shape such that the dimension along the width direction is gradually narrowed.
メインフレーム7の右側面および左側面は、夫々複数の側板12で覆われている。メインフレーム7の正面および背面は、夫々図示しない端板で覆われている。さらに、下フレーム8の上に底板13が固定されている。ここで底板13は、第1の冷凍サイクルユニット3、第2の冷凍サイクルユニット4、電装ユニット6、及び後述する渦巻ポンプ45を有するポンプユニットのそれぞれを載置する複数の板金部材であり、それぞれがメインフレーム7に固定される構成となっている。底板13は、側板12および端板と協働して筐体2の内部に機械室14を規定している。機械室14は、筐体2の奥行き方向に沿う全長に亘って延びている。
The right side surface and the left side surface of the main frame 7 are each covered with a plurality of side plates 12. The front and back surfaces of the main frame 7 are covered with end plates (not shown). Further, the bottom plate 13 is fixed on the lower frame 8. Here, the bottom plate 13 is a plurality of sheet metal members on which the first refrigeration cycle unit 3, the second refrigeration cycle unit 4, the electrical unit 6, and a pump unit having a spiral pump 45 described later are placed, Is fixed to the main frame 7. The bottom plate 13 defines a machine room 14 inside the housing 2 in cooperation with the side plate 12 and the end plate. The machine room 14 extends over the entire length along the depth direction of the housing 2.
本実施形態によると、筐体2の正面の側に位置された下フレーム8の前端および上フレーム9の前端は、筐体2の高さ方向に並ぶように筐体2の奥行き方向に沿う位置が互いに揃えられている。筐体2の背面の側では、上フレーム9が下フレーム8よりも筐体2の背後に向けて水平に張り出している。このため、筐体2の奥行き方向に沿う全長は、下フレーム8の長さL1によって規定されている。筐体2の奥行き方向は、筐体2の長手方向と言い換えることができる。
According to the present embodiment, the front end of the lower frame 8 and the front end of the upper frame 9 positioned on the front side of the housing 2 are positioned along the depth direction of the housing 2 so as to be aligned in the height direction of the housing 2. Are aligned with each other. On the back side of the housing 2, the upper frame 9 projects horizontally beyond the lower frame 8 toward the back of the housing 2. For this reason, the total length along the depth direction of the housing 2 is defined by the length L <b> 1 of the lower frame 8. The depth direction of the housing 2 can be restated as the longitudinal direction of the housing 2.
図5および図6に示すように、第1の冷凍サイクルユニット3は、互いに独立した第1の冷媒回路RAおよび第2の冷媒回路RBを備えている。同様に、第2の冷凍サイクルユニット4は、互いに独立した第3の冷媒回路RCおよび第4の冷媒回路RDを備えている。
As shown in FIGS. 5 and 6, the first refrigeration cycle unit 3 includes a first refrigerant circuit RA and a second refrigerant circuit RB that are independent of each other. Similarly, the second refrigeration cycle unit 4 includes a third refrigerant circuit RC and a fourth refrigerant circuit RD that are independent of each other.
第1ないし第4の冷媒回路RA,RB,RC,RDは、互いに共通の構成を有するため、第1の冷媒回路RAを代表して説明し、第2ないし第4の冷媒回路RB,RC,RDについては同一の参照符号を付して、その説明を省略する。
Since the first to fourth refrigerant circuits RA, RB, RC, and RD have a common configuration, the first refrigerant circuit RA will be described as a representative, and the second to fourth refrigerant circuits RB, RC, RD, About RD, the same referential mark is attached | subjected and the description is abbreviate | omitted.
第1の冷媒回路RAは、能力可変型の圧縮機20、四方弁21、空気熱交換部22、一対の膨張弁23a,23b、レシーバ24、水熱交換器25および気液分離器26を主要な要素として備えている。前記複数の要素は、冷凍サイクル構成部品の一例であって、冷媒が循環する循環回路27を介して接続されている。
The first refrigerant circuit RA mainly includes a variable capacity compressor 20, a four-way valve 21, an air heat exchanger 22, a pair of expansion valves 23a and 23b, a receiver 24, a water heat exchanger 25, and a gas-liquid separator 26. It is prepared as an element. The plurality of elements are examples of refrigeration cycle components and are connected via a circulation circuit 27 in which the refrigerant circulates.
具体的に述べると、図5に示すように、圧縮機20の吐出口は、四方弁21の第1ポート21aに接続されている。四方弁21の第2ポート21bは、空気熱交換部22に接続されている。本実施形態の空気熱交換部22は、一対の空気熱交換器29a,29bおよびファン30を備えている。
Specifically, as shown in FIG. 5, the discharge port of the compressor 20 is connected to the first port 21 a of the four-way valve 21. The second port 21 b of the four-way valve 21 is connected to the air heat exchange unit 22. The air heat exchanging unit 22 of the present embodiment includes a pair of air heat exchangers 29 a and 29 b and a fan 30.
図7に示すように、空気熱交換器29a,29bは、複数のプレートフィンと複数の冷媒配管とを組み合わせて構成され、その水平断面が略C字状に折り曲げられた形状を有している。空気熱交換器29a,29bは、筐体2の幅方向に間隔を存して向かい合うように起立しているとともに、上方に進むに従い互いに遠ざかる方向に傾いている。空気熱交換器29a,29bの縁部の間の隙間は、一対の遮蔽板32a,32bで閉塞されている。空気熱交換器29a,29bおよび遮蔽板32a,32bで囲まれた筒状の空間は、上下方向に延びた排気通路33を規定している。
As shown in FIG. 7, the air heat exchangers 29 a and 29 b are configured by combining a plurality of plate fins and a plurality of refrigerant pipes, and have a shape in which a horizontal cross section is bent into a substantially C shape. . The air heat exchangers 29a and 29b are erected so as to face each other with a gap in the width direction of the housing 2, and are inclined to move away from each other as they move upward. A gap between the edges of the air heat exchangers 29a and 29b is closed by a pair of shielding plates 32a and 32b. A cylindrical space surrounded by the air heat exchangers 29a and 29b and the shielding plates 32a and 32b defines an exhaust passage 33 extending in the vertical direction.
このため、図2および図3に示すように、空気熱交換部22は、筐体2を正面の方向Fおよび背面の方向Rから見た時に、筐体2の上方に向かうに従い筐体2の幅方向に拡開するようなV字状に形成されている。よって、筐体2の上に空気熱交換部22が位置されたチリングユニット1は、高さ方向に沿う中間部が括れた鼓形の形状を有している。
For this reason, as shown in FIGS. 2 and 3, the air heat exchanging unit 22 is configured such that when the casing 2 is viewed from the front direction F and the rear direction R, the casing 2 It is formed in a V shape that expands in the width direction. Therefore, the chilling unit 1 in which the air heat exchanging part 22 is positioned on the housing 2 has a drum-shaped shape in which an intermediate part along the height direction is constricted.
ファン30は、羽根車34を回転させるファンモータ35を備えている。ファンモータ35は、羽根車34の回転速度を可変制御するためのインバータ基板(図示せず)を内蔵している。ファンモータ35は、排気通路33の上端に位置するように空気熱交換器29a,29bの上端部の相互間にファンベース36を介して支持されている。
The fan 30 includes a fan motor 35 that rotates the impeller 34. The fan motor 35 incorporates an inverter board (not shown) for variably controlling the rotational speed of the impeller 34. The fan motor 35 is supported via a fan base 36 between the upper ends of the air heat exchangers 29a and 29b so as to be positioned at the upper end of the exhaust passage 33.
さらに、ファン30の羽根車34は、ファンカバー37で覆われている。ファンカバー37は、羽根車34と向かい合う円筒状の排気口38を有している。
Furthermore, the impeller 34 of the fan 30 is covered with a fan cover 37. The fan cover 37 has a cylindrical exhaust port 38 facing the impeller 34.
ファン30が駆動されると、チリングユニット1の周囲の空気が空気熱交換器29a,29bを通過して排気通路33に吸い込まれる。排気通路33に吸い込まれた空気は、排気口38に向けて吸い上げられるとともに、当該排気口38からチリングユニット1の上方に向けて排出される。
When the fan 30 is driven, the air around the chilling unit 1 passes through the air heat exchangers 29a and 29b and is sucked into the exhaust passage 33. The air sucked into the exhaust passage 33 is sucked up toward the exhaust port 38 and discharged from the exhaust port 38 toward the upper side of the chilling unit 1.
図5に示すように、空気熱交換器29a,29bの入口は、四方弁21の第2ポート21bに並列に接続されている。空気熱交換器29a,29bの出口は、膨張弁23a,23b、レシーバ24および水熱交換器25を介して四方弁21の第3ポート21cに接続されている。四方弁21の第4ポート21dは、気液分離器26を介して圧縮機20の吸入側に接続されている。
As shown in FIG. 5, the inlets of the air heat exchangers 29 a and 29 b are connected in parallel to the second port 21 b of the four-way valve 21. The outlets of the air heat exchangers 29a and 29b are connected to the third port 21c of the four-way valve 21 via the expansion valves 23a and 23b, the receiver 24, and the water heat exchanger 25. The fourth port 21 d of the four-way valve 21 is connected to the suction side of the compressor 20 via a gas-liquid separator 26.
さらに、気液分離器26の出口は、バイパス配管40を介して四方弁21の第1ポート21aに接続されている。常閉形の電磁弁41がバイパス配管40の途中に設けられている。
Furthermore, the outlet of the gas-liquid separator 26 is connected to the first port 21a of the four-way valve 21 via the bypass pipe 40. A normally closed solenoid valve 41 is provided in the middle of the bypass pipe 40.
図5に示すように、水熱交換器25は、第1の冷媒流路25a、第2の冷媒流路25bおよび水流路25cを備えている。水熱交換器25の第1の冷媒流路25aは、レシーバ24および四方弁21の第3ポート21cに接続されている。第2の冷媒流路25bは、第2の冷媒回路RBのレシーバ24および四方弁21の第3ポート21cに接続されている。このため、第1の冷凍サイクルユニット3では、第1の冷媒回路RAおよび第2の冷媒回路RBが一つの水熱交換器25を共有している。
As shown in FIG. 5, the water heat exchanger 25 includes a first refrigerant channel 25a, a second refrigerant channel 25b, and a water channel 25c. The first refrigerant flow path 25 a of the water heat exchanger 25 is connected to the receiver 24 and the third port 21 c of the four-way valve 21. The second refrigerant flow path 25b is connected to the receiver 24 of the second refrigerant circuit RB and the third port 21c of the four-way valve 21. Therefore, in the first refrigeration cycle unit 3, the first refrigerant circuit RA and the second refrigerant circuit RB share one water heat exchanger 25.
同様に、第2の冷凍サイクルユニット4においても、一つの水熱交換器25を共有するように第3の冷媒回路RCおよび第4の冷媒回路RDが一つの水熱交換器25に並列に接続されている。したがって、チリングユニット1は、二台の水熱交換器25を搭載している。
Similarly, in the second refrigeration cycle unit 4, the third refrigerant circuit RC and the fourth refrigerant circuit RD are connected in parallel to one water heat exchanger 25 so as to share one water heat exchanger 25. Has been. Therefore, the chilling unit 1 is equipped with two water heat exchangers 25.
本実施形態のチリングユニット1は、第1ないし第4の冷媒回路RA,RB,RC,RDを有するので、四組の空気熱交換部22が存在する。四組の空気熱交換部22は、メインフレーム7の上フレーム9の上に起立した姿勢で固定されているとともに、筐体2の奥行き方向に沿って一列に並んでいる。したがって、本実施形態では、機械室14の真上に位置された四組の空気熱交換部22がチリングユニット1の第2のセクションを構成している。
Since the chilling unit 1 of the present embodiment includes the first to fourth refrigerant circuits RA, RB, RC, and RD, there are four sets of air heat exchange units 22. The four air heat exchange units 22 are fixed in an upright posture on the upper frame 9 of the main frame 7 and are arranged in a line along the depth direction of the housing 2. Therefore, in the present embodiment, the four sets of air heat exchanging units 22 positioned immediately above the machine room 14 constitute the second section of the chilling unit 1.
さらに、筐体2の奥行き方向に沿う前端部および後端部の上に位置された空気熱交換部22にあっては、夫々空気熱交換器29a,29bの折り曲げられた一方の端部が筐体2の正面の方向Fおよび筐体2の背面の方向Rに露出されている。言い換えると、複数の空気熱交換部22の並び方向に沿う両端部に位置された二組の空気熱交換器29a,29bの一方の端部は、チリングユニット1の周囲に露出された熱交換面となっている。
Furthermore, in the air heat exchanger 22 positioned on the front end and the rear end along the depth direction of the housing 2, the bent one ends of the air heat exchangers 29a and 29b are respectively housings. The body 2 is exposed in the front direction F and the back direction R of the housing 2. In other words, one end of the two sets of air heat exchangers 29a and 29b positioned at both ends along the arrangement direction of the plurality of air heat exchange units 22 is a heat exchange surface exposed around the chilling unit 1. It has become.
この構成を採用することで、筐体2の前端部および後端部の上に位置された空気熱交換部22は、夫々チリングユニット1の幅方向から吸い込まれる空気に加えて、筐体2の正面の方向Fおよび背面の方向Rから吸い込まれる空気を利用して熱交換を行なうことができる。
By adopting this configuration, the air heat exchanging unit 22 positioned on the front end portion and the rear end portion of the housing 2 is in addition to the air sucked from the width direction of the chilling unit 1, respectively. Heat exchange can be performed using the air sucked from the front direction F and the back direction R.
図4に最もよく示されるように、メインフレーム7の上フレーム9は、下フレーム8よりも筐体2の背後に向けて水平に張り出している。四組の空気熱交換部22のうち、筐体2の背後に位置された最後部の空気熱交換部22は、筐体2の後端部から筐体2の奥行き方向に突出されている。言い換えると、筐体2の奥行き方向に沿う全長は、四組の空気熱交換部22の並び方向に沿う全長よりも短い。
As best shown in FIG. 4, the upper frame 9 of the main frame 7 projects horizontally toward the back of the housing 2 from the lower frame 8. Of the four sets of air heat exchanging units 22, the rearmost air heat exchanging unit 22 located behind the housing 2 projects from the rear end of the housing 2 in the depth direction of the housing 2. In other words, the total length along the depth direction of the housing 2 is shorter than the total length along the alignment direction of the four air heat exchange units 22.
この結果、第1のセクションとしての筐体2の背後に、最後部の空気熱交換部22よりも引っ込んだ段差部43が形成されている。段差部43は、筐体2の側方および背後に連続して開放されたスペースS1を規定しており、当該スペースS1の上に最後部の空気熱交換部22が張り出している。
As a result, a stepped portion 43 is formed behind the housing 2 as the first section, which is recessed from the rearmost air heat exchanging portion 22. The stepped portion 43 defines a space S1 that is continuously open to the side and the back of the housing 2, and the rearmost air heat exchanging portion 22 projects over the space S1.
すなわち、当該空気熱交換部22の最も背面側に位置する空気熱交換器29a,29bの折り曲げられた端部の下方にスペースS1が位置されている。ここで、図4に示すように、筐体2の後端部に配置された縦桟10は、最後部の空気熱交換部22を構成する空気熱交換器29a,29bの奥行き方向に沿う中央又は中央よりも筐体2の背面の側に位置されている。これにより、重量物である空気熱交換器29a,29bをメインフレーム7で安定して支持することができる。
That is, the space S1 is located below the bent end portions of the air heat exchangers 29a and 29b located on the most back side of the air heat exchange unit 22. Here, as shown in FIG. 4, the vertical rail 10 disposed at the rear end of the housing 2 is a center along the depth direction of the air heat exchangers 29 a and 29 b constituting the rearmost air heat exchanger 22. Or it is located in the back side of case 2 rather than the center. Thereby, the air heat exchangers 29a and 29b, which are heavy objects, can be stably supported by the main frame 7.
図2~図4および図6に示すように、第1の冷凍サイクルユニット3および第2の冷凍サイクルユニット4のうち、四組の空気熱交換部22を除いた各種の要素は、筐体2の機械室14に収容されている。
As shown in FIG. 2 to FIG. 4 and FIG. 6, various elements of the first refrigeration cycle unit 3 and the second refrigeration cycle unit 4 except for the four air heat exchange units 22 are the casing 2 Are accommodated in the machine room 14.
第1の冷媒回路RAおよび第2の冷媒回路RBを備えた第1の冷凍サイクルユニット3は、例えば筐体2を正面Fの方向から見た時に、機械室14の長手方向に沿う右半分の領域に配置されている。同様に、第3の冷媒回路RCおよび第4の冷媒回路RDを備えた第2の冷凍サイクルユニット4は、例えば筐体2を正面Fの方向から見た時に、機械室14の長手方向に沿う左半分の領域に配置されている。
The first refrigeration cycle unit 3 provided with the first refrigerant circuit RA and the second refrigerant circuit RB has, for example, the right half along the longitudinal direction of the machine room 14 when the casing 2 is viewed from the front F direction. Arranged in the area. Similarly, the second refrigeration cycle unit 4 including the third refrigerant circuit RC and the fourth refrigerant circuit RD is along the longitudinal direction of the machine room 14 when the housing 2 is viewed from the front F direction, for example. It is arranged in the left half area.
具体的に述べると、第1の冷媒回路RAおよび第2の冷媒回路RBを構成する二台の圧縮機20、二台のレシーバ24および二台の気液分離器26は、機械室14の右半分の領域において、筐体2の奥行き方向に沿って一列に並ぶように底板13の上に据え付けられている。さらに、第1の冷媒回路RAおよび第2の冷媒回路RBが共有する一つの水熱交換器25は、第1の冷凍サイクルユニット3の最後部に位置するように底板13の上に据え付けられている。
Specifically, the two compressors 20, the two receivers 24, and the two gas-liquid separators 26 constituting the first refrigerant circuit RA and the second refrigerant circuit RB are arranged on the right side of the machine room 14. In the half area, it is installed on the bottom plate 13 so as to be arranged in a line along the depth direction of the housing 2. Furthermore, one water heat exchanger 25 shared by the first refrigerant circuit RA and the second refrigerant circuit RB is installed on the bottom plate 13 so as to be located at the rearmost part of the first refrigeration cycle unit 3. Yes.
第3の冷媒回路RCおよび第4の冷媒回路RDを構成する二台の圧縮機20、二台のレシーバ24および二台の気液分離器26は、機械室14の左半分の領域において、筐体2の奥行き方向に沿って一列に並ぶように底板13の上に据え付けられている。さらに、第3の冷媒回路RCおよび第4の冷媒回路RDが共有する一つの水熱交換器25は、第2の冷凍サイクルユニット4の最後部に位置するように底板13の上に据え付けられている。
The two compressors 20, the two receivers 24, and the two gas-liquid separators 26 constituting the third refrigerant circuit RC and the fourth refrigerant circuit RD are arranged in the left half region of the machine room 14. It is installed on the bottom plate 13 so as to be arranged in a line along the depth direction of the body 2. Furthermore, one water heat exchanger 25 shared by the third refrigerant circuit RC and the fourth refrigerant circuit RD is installed on the bottom plate 13 so as to be located at the rearmost part of the second refrigeration cycle unit 4. Yes.
したがって、図6に最もよく示されるように、第1の冷凍サイクルユニット3および第2の冷凍サイクルユニット4は、機械室14内で筐体2の長手方向に延びているとともに、筐体2の幅方向に並んでいる。それとともに、二台の水熱交換器25は、筐体2の長手方向に沿う中間部よりも段差部43の方向に偏った位置で筐体2の幅方向に並んでいる。
Therefore, as best shown in FIG. 6, the first refrigeration cycle unit 3 and the second refrigeration cycle unit 4 extend in the longitudinal direction of the casing 2 in the machine room 14, and It is lined up in the width direction. At the same time, the two water heat exchangers 25 are arranged in the width direction of the housing 2 at a position that is biased toward the stepped portion 43 rather than an intermediate portion along the longitudinal direction of the housing 2.
図2ないし図6に示すように、水回路5は、第1の冷凍サイクルユニット3および第2の冷凍サイクルユニット4と共に機械室14に収容されている。水回路5は、能力可変型の水循環ポンプ45および第1ないし第4の水配管46a,46b,46c,46dを主要な要素として備えている。
As shown in FIGS. 2 to 6, the water circuit 5 is accommodated in the machine room 14 together with the first refrigeration cycle unit 3 and the second refrigeration cycle unit 4. The water circuit 5 includes a variable capacity type water circulation pump 45 and first to fourth water pipes 46a, 46b, 46c, and 46d as main elements.
水循環ポンプ45は、機械室14の後端部に位置するように底板13の上に据え付けられている。そのため、水循環ポンプ45は、筐体2の幅方向に並んだ二台の水熱交換器25と筐体2の背後の段差部43との間に位置されている。
The water circulation pump 45 is installed on the bottom plate 13 so as to be located at the rear end of the machine room 14. Therefore, the water circulation pump 45 is located between the two water heat exchangers 25 arranged in the width direction of the housing 2 and the stepped portion 43 behind the housing 2.
第1の水配管46aは、水循環ポンプ45の吸入口に接続されている。第2の水配管46bは、水循環ポンプ45の吐出口と第1の冷凍サイクルユニット3に対応する水熱交換器25の水流路25cとの間を接続している。第3の水配管46cは、第1の冷凍サイクルユニット3の水熱交換器25の水流路25cと第2の冷凍サイクルユニット4の水熱交換器25の水流路25cとの間を直列に接続している。第4の水配管46dは、第2の冷凍サイクルユニット4の水熱交換器25の水流路25cに接続されている。
The first water pipe 46 a is connected to the suction port of the water circulation pump 45. The second water pipe 46 b connects between the discharge port of the water circulation pump 45 and the water flow path 25 c of the water heat exchanger 25 corresponding to the first refrigeration cycle unit 3. The third water pipe 46 c connects in series between the water flow path 25 c of the water heat exchanger 25 of the first refrigeration cycle unit 3 and the water flow path 25 c of the water heat exchanger 25 of the second refrigeration cycle unit 4. is doing. The fourth water pipe 46 d is connected to the water flow path 25 c of the water heat exchanger 25 of the second refrigeration cycle unit 4.
本実施形態によると、水回路5の水循環ポンプ45および二台の水熱交換器25が機械室14の後部で互いに隣り合っている。そのため、水回路5の第1ないし第4の水配管46a,46b,46c,46dが機械室14の後端部に集中し、第1ないし第4の水配管46a,46b,46c,46dの配管長が短くなる。
According to the present embodiment, the water circulation pump 45 of the water circuit 5 and the two water heat exchangers 25 are adjacent to each other at the rear part of the machine room 14. Therefore, the first to fourth water pipes 46a, 46b, 46c, 46d of the water circuit 5 are concentrated on the rear end portion of the machine room 14, and the first to fourth water pipes 46a, 46b, 46c, 46d are connected. The length is shortened.
これにより、第1ないし第4の水配管46a,46b,46c,46dを機械室14に据え付ける際の作業性が良好となるとともに、第1ないし第4の水配管46a,46b,46c,46dのメンテナンスを容易に行うことができる。
This improves the workability when the first to fourth water pipes 46a, 46b, 46c, 46d are installed in the machine room 14, and the first to fourth water pipes 46a, 46b, 46c, 46d. Maintenance can be performed easily.
図4および図6に示すように、第1の水配管46aは、第1の接続端部48を有している。第1の接続端部48は、例えば第1の水配管46aの上流端に形成された水配管入口49と、水配管入口49に接続されたストレーナ50と、を備えている。第1の接続端部48は、機械室14の後端部から筐体2の背後の段差部43に向けて突出されている。
As shown in FIGS. 4 and 6, the first water pipe 46a has a first connection end 48. As shown in FIG. The first connection end 48 includes, for example, a water pipe inlet 49 formed at the upstream end of the first water pipe 46 a and a strainer 50 connected to the water pipe inlet 49. The first connection end portion 48 projects from the rear end portion of the machine room 14 toward the stepped portion 43 behind the housing 2.
第4の水配管46dは、第2の接続端部51を有している。第2の接続端部51は、例えば第4の水配管46dの下流端に形成された水配管出口52と、水配管出口52に接続されたチェッキバルブ53と、を備えている。第2の接続端部51は、機械室14の後端部から筐体2の背後の段差部43に向けて突出されている。
The fourth water pipe 46 d has a second connection end 51. The second connection end 51 includes, for example, a water pipe outlet 52 formed at the downstream end of the fourth water pipe 46 d and a check valve 53 connected to the water pipe outlet 52. The second connection end portion 51 protrudes from the rear end portion of the machine room 14 toward the stepped portion 43 behind the housing 2.
そのため、水回路5の第1の接続端部48および第2の接続端部51は、段差部43が規定するスペースS1に収まっている。したがって、第1の接続端部48および第2の接続端部51が機械室14の背後に突出しているにも拘らず、第1の接続端部48および第2の接続端部51の大部分は、最後部の空気熱交換部22の真下に位置されている。
Therefore, the first connection end 48 and the second connection end 51 of the water circuit 5 are accommodated in the space S <b> 1 defined by the stepped portion 43. Therefore, most of the first connection end 48 and the second connection end 51 are in spite of the fact that the first connection end 48 and the second connection end 51 protrude behind the machine room 14. Is positioned directly below the rearmost air heat exchanger 22.
さらに、図4に示すように、第1の水配管46aの第1の接続端部48は、例えば各種のバルブやフレキシブルジョイントのような付属品(図示せず)を介して設置面Gの上に敷設された第1の現場配管55に接続されている。第1の現場配管55は、例えば空調機のような利用機器側の水出口に接続されている。
Further, as shown in FIG. 4, the first connection end 48 of the first water pipe 46a is provided on the installation surface G via accessories (not shown) such as various valves and flexible joints. Is connected to a first on-site pipe 55 laid on the wall. The first on-site piping 55 is connected to a water outlet on the use device side such as an air conditioner.
第4の水配管46dの第2の接続端部51は、例えば各種のバルブやフレキシブルジョイントのような付属品(図示せず)を介して設置面Gの上に敷設された第2の現場配管56に接続されている。第2の現場配管56は、例えば空調機のような利用機器側の水入口に接続されている。
The second connection end 51 of the fourth water pipe 46d is, for example, a second field pipe laid on the installation surface G via accessories (not shown) such as various valves and flexible joints. 56. The 2nd site piping 56 is connected to the water inlet by the side of utilization equipment like an air conditioner, for example.
図8および図9に示すように、空気熱交換器29a,29bから滴下する結露水等を受けるドレンパン60が筐体2の機械室14と四組の空気熱交換部22との間に配置されている。本実施形態のドレンパン60は、一対の樋61a,61bおよびドレン回収盤62を備えている。
As shown in FIGS. 8 and 9, a drain pan 60 that receives condensed water or the like dripping from the air heat exchangers 29 a and 29 b is disposed between the machine chamber 14 of the housing 2 and the four air heat exchange units 22. ing. The drain pan 60 of the present embodiment includes a pair of ridges 61 a and 61 b and a drain collection board 62.
樋61a,61bは、四組の空気熱交換部22の配列方向に沿って真っ直ぐに延びた要素であって、各空気熱交換部22の空気熱交換器29a,29bの真下に位置するように筐体2の上フレーム9に支持されている。
The eaves 61a and 61b are elements that extend straight along the arrangement direction of the four sets of air heat exchangers 22 so as to be positioned directly below the air heat exchangers 29a and 29b of each air heat exchanger 22. It is supported by the upper frame 9 of the housing 2.
樋61a,61bは、筐体2の幅方向に互いに間隔を存して平行に配置されている。樋61a,61bの底は、筐体2の正面から背面の方向に進むに従い下向きに傾斜されている。さらに、樋61a,61bの間に通風路63が形成されている。通風路63は、筐体2の奥行き方向に沿って延びており、当該通風路63を通じて機械室14と四組の空気熱交換部22の排気通路33との間が連通されている。
樋 61a, 61b are arranged in parallel in the width direction of the housing 2 with a space between each other. The bottoms of the flanges 61a and 61b are inclined downward as they proceed from the front of the housing 2 toward the back. Further, a ventilation path 63 is formed between the flanges 61a and 61b. The ventilation path 63 extends along the depth direction of the housing 2, and the machine chamber 14 and the exhaust passages 33 of the four air heat exchange units 22 communicate with each other through the ventilation path 63.
ドレン回収盤62は、樋61a,61bの後端部の間に跨るように上フレーム9に支持されている。ドレン回収盤62の後端部は、筐体2の背後の段差部43の上方に張り出している。さらに、ドレン回収盤62は、段差部43に開口されたドレン配管接続口64を有している。
The drain collection board 62 is supported by the upper frame 9 so as to straddle between the rear ends of the flanges 61a and 61b. The rear end portion of the drain collecting board 62 protrudes above the stepped portion 43 behind the housing 2. Further, the drain collection board 62 has a drain pipe connection port 64 opened to the step portion 43.
図4、図6および図8に示すように、前記電装ユニット6は、筐体2の正面の側である機械室14の前端部に位置されている。本実施形態の電装ユニット6は、電装ボックス70およびファン装置71を備えている。電装ボックス70は、メインボックス72、第1のサイドボックス73aおよび第2のサイドボックス73bを有している。
As shown in FIGS. 4, 6, and 8, the electrical unit 6 is located at the front end of the machine room 14 on the front side of the housing 2. The electrical unit 6 of this embodiment includes an electrical box 70 and a fan device 71. The electrical box 70 includes a main box 72, a first side box 73a, and a second side box 73b.
図8および図9に示すように、メインボックス72は、略直方体状の要素であって、機械室14と同等の高さ寸法を有している。メインボックス72の左右の側面は、底板13に近づくに従い筐体2の側板12から離れている。第1のサイドボックス73aおよび第2のサイドボックス73bは、メインボックス72よりも高さ寸法が小さい箱形の要素であって、筐体2の奥行き方向に延びた細長い形状を有している。
8 and 9, the main box 72 is a substantially rectangular parallelepiped element and has a height dimension equivalent to that of the machine room 14. The left and right side surfaces of the main box 72 are separated from the side plate 12 of the housing 2 as approaching the bottom plate 13. The first side box 73 a and the second side box 73 b are box-shaped elements having a height dimension smaller than that of the main box 72 and have an elongated shape extending in the depth direction of the housing 2.
第1のサイドボックス73aは、メインボックス72の左側面の下部からメインボックス72の左側方に向けて突出されている。第2のサイドボックス73bは、メインボックス72の右側面の下部からメインボックス72の右側方に向けて突出されている。第1のサイドボックス73aおよび第2のサイドボックス73bは、夫々機械室14の底板13の上に固定されている。
The first side box 73 a protrudes from the lower part of the left side surface of the main box 72 toward the left side of the main box 72. The second side box 73 b protrudes from the lower part of the right side surface of the main box 72 toward the right side of the main box 72. The first side box 73a and the second side box 73b are fixed on the bottom plate 13 of the machine room 14, respectively.
本実施形態によると、筐体2は、下フレーム8から上フレーム9に向けて先細り状に形成されているので、図9に示すように、筐体2の幅方向に沿う機械室14の長さは、機械室14の上部から下部に進むに従い拡張されている。そのため、第1のサイドボックス73aおよび第2のサイドボックス73bは、幅が拡張された機械室14の下部に収められている。
According to the present embodiment, the casing 2 is tapered from the lower frame 8 toward the upper frame 9, so that the length of the machine room 14 along the width direction of the casing 2 is shown in FIG. The width of the machine room 14 is expanded from the upper part to the lower part. Therefore, the first side box 73a and the second side box 73b are housed in the lower part of the machine room 14 whose width is expanded.
この構成を採用することで、機械室14の前端部を電装ボックス70の収容スペースとして隅々まで有効に活用することができる。そのため、筐体2の奥行き方向に沿う電装ボックス70の長さを抑制しつつ、電装ボックス70の内容積を十分に確保できる。
By adopting this configuration, the front end portion of the machine room 14 can be effectively utilized as a storage space for the electrical box 70. Therefore, the internal volume of the electrical equipment box 70 can be sufficiently secured while suppressing the length of the electrical equipment box 70 along the depth direction of the housing 2.
本実施形態によると、図9に示すような空気通路74がメインボックス72の内部に形成されている。空気通路74は、メインボックス72の内部を区画する一対の仕切り板75a,75bの間に形成されている。空気通路74は、メインボックス72の幅方向に沿う中央部において筐体2の奥行き方向に延びているとともに、メインボックス72の高さ方向に沿って起立されている。
According to the present embodiment, an air passage 74 as shown in FIG. 9 is formed in the main box 72. The air passage 74 is formed between a pair of partition plates 75 a and 75 b that partition the inside of the main box 72. The air passage 74 extends in the depth direction of the housing 2 at the center portion along the width direction of the main box 72 and is erected along the height direction of the main box 72.
空気通路74の下端は、メインボックス72の底に開口されているとともに、筐体2の底板13に開けた吸気孔76に通じている。吸気孔76は、底板13と設置面Gとの間の隙間gに連通されている。空気通路74の上端は、メインボックス72の上面に開口されている。
The lower end of the air passage 74 is opened at the bottom of the main box 72 and communicates with an intake hole 76 opened in the bottom plate 13 of the housing 2. The intake hole 76 communicates with a gap g between the bottom plate 13 and the installation surface G. The upper end of the air passage 74 is opened on the upper surface of the main box 72.
電装ボックス70は、第1の冷凍サイクルユニット3および第2の冷凍サイクルユニット4の運転を制御する各種の電気部品を収容している。電気部品の一例は、圧縮機20に印加する電圧および周波数を制御する複数の制御基板、インバータおよびコンバータのような複数のパワーモジュール、複数の平滑コンデンサ、力率改善用の複数のリアクトル、複数のフィルタ基板、複数の端子台および複数の電磁接触器などである。
The electrical box 70 accommodates various electrical components that control the operation of the first refrigeration cycle unit 3 and the second refrigeration cycle unit 4. An example of the electrical component includes a plurality of control boards that control the voltage and frequency applied to the compressor 20, a plurality of power modules such as inverters and converters, a plurality of smoothing capacitors, a plurality of reactors for power factor improvement, a plurality of reactors, and the like. A filter substrate, a plurality of terminal blocks, and a plurality of electromagnetic contactors.
各種の電気部品の中でも例えば複数の制御基板および複数のパワーモジュールは、動作中の発熱量が大きい発熱部品78と言い換えることができる。発熱部品78は、積極的な放熱を必要とするので、複数のヒートシンク79に熱的に接続されている。ヒートシンク79は、仕切り板75a,75bを貫通して空気通路74に露出されている。
Among various electrical components, for example, a plurality of control boards and a plurality of power modules can be rephrased as heat generating components 78 that generate a large amount of heat during operation. Since the heat generating component 78 requires active heat dissipation, it is thermally connected to a plurality of heat sinks 79. The heat sink 79 penetrates the partition plates 75a and 75b and is exposed to the air passage 74.
図6、図8および図9に示すように、電装ユニット6のファン装置71は、メインボックス72の上面に取り付けられている。
この状態において、ファン装置71は、電装ボックス70内の各種の電気部品(即ち、発熱部品)から発せられる熱気を、排熱可能に構成されている。このため、ファン装置71は、細長い箱状のダクトユニット81と、このダクトユニット81に収容された排熱ファンユニット300(図12~図13参照)と、を備えている。 As shown in FIGS. 6, 8, and 9, thefan device 71 of the electrical unit 6 is attached to the upper surface of the main box 72.
In this state, thefan device 71 is configured to be able to exhaust heat generated from various electrical components (that is, heat-generating components) in the electrical box 70. Therefore, the fan device 71 includes an elongated box-shaped duct unit 81 and a heat exhaust fan unit 300 (see FIGS. 12 to 13) accommodated in the duct unit 81.
この状態において、ファン装置71は、電装ボックス70内の各種の電気部品(即ち、発熱部品)から発せられる熱気を、排熱可能に構成されている。このため、ファン装置71は、細長い箱状のダクトユニット81と、このダクトユニット81に収容された排熱ファンユニット300(図12~図13参照)と、を備えている。 As shown in FIGS. 6, 8, and 9, the
In this state, the
図面では一例として、排熱ファンユニット300は、複数(例えば、3つ)の電動ファン82a,82b,82cと、これら電動ファン82a,82b,82cの周囲を囲むスライダ302aと、操作パネル302cと、を備えている。複数の電動ファン82a,82b,82cは、筐体2の奥行き方向(矢印FからR方向)に沿って一列に並んで配置されている。
As an example in the drawing, the exhaust heat fan unit 300 includes a plurality (for example, three) of electric fans 82a, 82b, and 82c, a slider 302a that surrounds the electric fans 82a, 82b, and 82c, an operation panel 302c, It has. The plurality of electric fans 82a, 82b, and 82c are arranged in a line along the depth direction of the housing 2 (from the arrow F to the R direction).
ここで、電動ファン82a,82b,82cを駆動させることにより、電装ボックス70の内部に空気の流れを発生させる。この結果、空気の流れによって、電装ボックス70の内部の熱気が、ダクトユニット81(図13参照)を通って、機外に排熱され、電装ボックス70の内部が冷却される。
Here, by driving the electric fans 82a, 82b, and 82c, an air flow is generated inside the electrical box 70. As a result, due to the air flow, the hot air inside the electrical box 70 passes through the duct unit 81 (see FIG. 13) and is exhausted to the outside of the machine, thereby cooling the interior of the electrical box 70.
また、ダクトユニット81は、メインボックス72の上面の中央部分に設けられている。ダクトユニット81は、上記した空気通路74の開口に対向させて設けられている。ダクトユニット81は、かかる空気通路74の開口を取り囲むように構成されている。排熱ファンユニット300は、ダクトユニット81の中間部に収容されて配置されている。
Further, the duct unit 81 is provided at the central portion of the upper surface of the main box 72. The duct unit 81 is provided to face the opening of the air passage 74 described above. The duct unit 81 is configured to surround the opening of the air passage 74. The exhaust heat fan unit 300 is accommodated and disposed in an intermediate portion of the duct unit 81.
ダクトユニット81の下端は、メインボックス72の内部に一部入り込んだ状態で位置決めされている。ダクトユニット81の上端は、樋61a,61bの間を通って、上記した空気熱交換部22の排気通路33(図9参照)に一部入り込んだ状態で位置決めされている。換言すると、ダクトユニット81は、メインボックス72の内部と外部とを連通させて構成されている。
The lower end of the duct unit 81 is positioned so as to partially enter the inside of the main box 72. The upper end of the duct unit 81 is positioned in a state in which it partially enters the exhaust passage 33 (see FIG. 9) of the air heat exchanging section 22 through between the flanges 61a and 61b. In other words, the duct unit 81 is configured by communicating the inside and the outside of the main box 72.
ダクトユニット81には、吹き出し部301が設けられている。吹き出し部301は、排熱ファンユニット300の真上に対向させて構成されている。即ち、吹き出し部301は、排熱ファンユニット300からダクトユニット81の上端に亘って構成されている。かかる構成において、吹き出し部301は、ダクトユニット81の吹出口として、電装ボックス70)内の熱気を外部に排出可能となっている。
The duct unit 81 is provided with a blowing part 301. The blowing unit 301 is configured to face directly above the exhaust heat fan unit 300. That is, the blowing unit 301 is configured from the exhaust heat fan unit 300 to the upper end of the duct unit 81. In such a configuration, the blowing unit 301 can discharge hot air in the electrical box 70) to the outside as a blowout port of the duct unit 81.
電動ファン82a,82b,82cは、筐体2の奥行き方向に間隔を存して一列に並んでいる。電動ファン82a,82b,82cは、空気通路74の真上に位置するように、回転軸線を縦置きにした水平の姿勢でダクトユニット81に組み込まれている。電動ファン82a,82b,82cは、いずれもダクトユニット81の上方に向けて排気する。
The electric fans 82a, 82b, 82c are arranged in a line at intervals in the depth direction of the housing 2. The electric fans 82a, 82b, and 82c are incorporated in the duct unit 81 in a horizontal posture in which the rotation axis is vertically arranged so as to be positioned immediately above the air passage 74. The electric fans 82a, 82b, 82c all exhaust toward the upper side of the duct unit 81.
電動ファン82a,82b,82cが動作すると、メインボックス72の空気通路74に負圧が作用する。これにより、図9に矢印で示すように、筐体2の周囲の空気が隙間gから吸気孔76を通じて空気通路74に吸い込まれる。吸い込まれた空気は、空気通路74を下から上に向けて流れるとともに、ダクトユニット81に導かれる。
When the electric fans 82a, 82b, and 82c operate, negative pressure acts on the air passage 74 of the main box 72. As a result, as shown by arrows in FIG. 9, the air around the housing 2 is sucked into the air passage 74 through the air intake hole 76 from the gap g. The sucked air flows through the air passage 74 from the bottom to the top and is guided to the duct unit 81.
空気通路74を流れる空気は、発熱部品78の熱を受けるヒートシンク79に接触する。この結果、ヒートシンク79に伝えられた発熱部品78の熱が空気の流れに乗じて放出され、発熱部品78が強制的に冷やされる。
The air flowing through the air passage 74 comes into contact with the heat sink 79 that receives heat from the heat generating component 78. As a result, the heat of the heat generating component 78 transmitted to the heat sink 79 is released by multiplying the air flow, and the heat generating component 78 is forcibly cooled.
空気通路74を通過した空気(熱気)は、電動ファン82a,82b,82cにより吸い上げられるとともに、図9に白抜きの矢印で示すように、ダクトユニット81の上端の吹き出し部301から空気熱交換器29a,29bの間の排気通路33に直に放出される。
The air (hot air) that has passed through the air passage 74 is sucked up by the electric fans 82a, 82b, and 82c, and as shown by white arrows in FIG. Directly discharged to the exhaust passage 33 between 29a and 29b.
排気通路33に放出された空気は、ファン30の動作によって空気熱交換器29a,29bを通過した空気と共に排気口38に向けて吸い上げられるとともに、排気口38からチリングユニット1の上方に排出される。したがって、電装ユニット6の発熱部品78を冷却した後の空気(熱気)が機械室14に滞留することはない。
The air discharged to the exhaust passage 33 is sucked up to the exhaust port 38 together with the air that has passed through the air heat exchangers 29a and 29b by the operation of the fan 30, and is discharged from the exhaust port 38 to the upper side of the chilling unit 1. . Therefore, air (hot air) after cooling the heat generating component 78 of the electrical unit 6 does not stay in the machine room 14.
具体的に述べると、ヒートシンク79が露出された電装ボックス70内の空気通路74には、吸気孔76からチリングユニット1の外の空気、つまり外気が導かれる。外気には、塵埃や水分が含まれているので、空気通路74を通過した外気が機械室14に排出されてしまうと、機械室14に早期のうちに塵埃が堆積するのを否めない。
More specifically, air outside the chilling unit 1, that is, outside air, is guided to the air passage 74 in the electrical box 70 where the heat sink 79 is exposed from the air intake hole 76. Since the outside air contains dust and moisture, if the outside air that has passed through the air passage 74 is discharged into the machine chamber 14, it cannot be denied that dust accumulates in the machine chamber 14 at an early stage.
これに対し、本実施形態では、電動ファン82a,82b,82cを収容したダクトユニット81がドレンパン60の樋61a,61bの間を通して空気熱交換器29a,29bの間の排気通路33に突出されている。そのため、空気通路74を通過した外気は、機械室14を経由することなく空気熱交換部22の排気口38からチリングユニット1の外に吐き出される。
On the other hand, in this embodiment, the duct unit 81 that houses the electric fans 82a, 82b, and 82c is protruded into the exhaust passage 33 between the air heat exchangers 29a and 29b through the gaps 61a and 61b of the drain pan 60. Yes. Therefore, the outside air that has passed through the air passage 74 is discharged out of the chilling unit 1 from the exhaust port 38 of the air heat exchange unit 22 without passing through the machine room 14.
よって、空気中に含まれる塵埃が機械室14に堆積したり、第1の冷凍サイクルユニット3および第2の冷凍サイクルユニット4に付着したりするのを防止できる。
Therefore, it is possible to prevent dust contained in the air from accumulating in the machine room 14 and adhering to the first refrigeration cycle unit 3 and the second refrigeration cycle unit 4.
さらに、本実施形態によると、筐体2内の機械室14は、筐体2の奥行き方向に延びた一対の樋61a,61bの間の通風路63を通じて四組の空気熱交換部22の内側の排気通路33に通じている。このため、空気熱交換部22のファン30を利用して機械室14内の空気を通風路63から排気通路33に向けて強制的に吸い上げることができる。よって、機械室14の通気性が格段に向上し、機械室14に熱が籠り難くなる。
Furthermore, according to the present embodiment, the machine room 14 in the housing 2 is located inside the four air heat exchange units 22 through the ventilation path 63 between the pair of flanges 61 a and 61 b extending in the depth direction of the housing 2. To the exhaust passage 33. For this reason, the air in the machine chamber 14 can be forcibly sucked from the air passage 63 toward the exhaust passage 33 by using the fan 30 of the air heat exchange unit 22. Therefore, the air permeability of the machine room 14 is remarkably improved, and heat is hardly generated in the machine room 14.
加えて、メインボックス72の上のファン装置71がドレンパン60の樋61a,61bの間に入り込むので、樋61a,61bの間に生じた通風路63をファン装置71の設置スペースとして活用できる。これにより、メインボックス72の上面を樋61a,61bに極力近づけることが可能となり、機械室14の高さ寸法を抑えつつ、メインボックス72の高さを確保できる。
In addition, since the fan device 71 on the main box 72 enters between the fences 61 a and 61 b of the drain pan 60, the ventilation path 63 generated between the fences 61 a and 61 b can be used as an installation space for the fan apparatus 71. As a result, the upper surface of the main box 72 can be made as close as possible to the flanges 61a and 61b, and the height of the main box 72 can be secured while suppressing the height dimension of the machine room 14.
しかも、メインボックス72の高さ寸法を増すことで、メインボックス72の内容積を確保しつつ、筐体2の奥行き方向に沿うメインボックス72の長さを抑制することができる。よって、機械室14内でのメインボックス72の占有面積を減らすことができ、第1のセクションとしての筐体2の奥行き方向に沿う全長を短くする上で好都合となる。
Moreover, by increasing the height of the main box 72, it is possible to suppress the length of the main box 72 along the depth direction of the housing 2 while securing the internal volume of the main box 72. Therefore, the occupation area of the main box 72 in the machine room 14 can be reduced, which is convenient for shortening the total length along the depth direction of the casing 2 as the first section.
次に、チリングユニット1の動作について説明する。
Next, the operation of the chilling unit 1 will be described.
第1の冷凍サイクルユニット3および第2の冷凍サイクルユニット4が冷却モードで運転を開始すると、第1ないし第4の冷媒回路RA,RB,RC,RDの四方弁21は、図5に実線で示すように、第1ポート21aが第2ポート21bに連通し、第3ポート21cが第4ポート21dに連通するように切り換わる。
When the first refrigeration cycle unit 3 and the second refrigeration cycle unit 4 start operation in the cooling mode, the four-way valves 21 of the first to fourth refrigerant circuits RA, RB, RC, RD are shown by solid lines in FIG. As shown, the first port 21a is switched to communicate with the second port 21b, and the third port 21c is switched to communicate with the fourth port 21d.
さらに、第1ないし第4の冷媒回路RA,RB,RC,RDの圧縮機20から高温・高圧の気相冷媒が循環回路27に吐出される。圧縮機20から吐出された高温・高圧の気相冷媒は、四方弁21を経由して空気熱交換器29a,29bに導かれる。
Further, high-temperature and high-pressure gas-phase refrigerant is discharged to the circulation circuit 27 from the compressors 20 of the first to fourth refrigerant circuits RA, RB, RC, and RD. The high-temperature and high-pressure gas-phase refrigerant discharged from the compressor 20 is guided to the air heat exchangers 29a and 29b via the four-way valve 21.
空気熱交換器29a,29bに導かれた気相冷媒は、ファン30の作動により空気熱交換器29a,29bを通過する空気との熱交換により凝縮し、高圧の液相冷媒に変化する。高圧の液相冷媒は、膨張弁23a,23bを通過する過程で減圧されて、中間圧の気液二相冷媒に変化する。気液二相冷媒は、レシーバ24を経由して水熱交換器25に導かれる。
The gas-phase refrigerant led to the air heat exchangers 29a and 29b is condensed by heat exchange with the air passing through the air heat exchangers 29a and 29b by the operation of the fan 30, and is changed into a high-pressure liquid-phase refrigerant. The high-pressure liquid-phase refrigerant is depressurized in the process of passing through the expansion valves 23a and 23b, and changes to an intermediate-pressure gas-liquid two-phase refrigerant. The gas-liquid two-phase refrigerant is guided to the water heat exchanger 25 via the receiver 24.
本実施形態では、第1の冷媒回路RAおよび第2の冷媒回路RBが一つの水熱交換器25を共有し、第3の冷媒回路RCおよび第4の冷媒回路RDが他の一つの水熱交換器25を共有している。このため、第1の冷媒回路RAおよび第2の冷媒回路RBでは、水熱交換器25の第1の冷媒流路25aおよび第2の冷媒流路25bに夫々中間圧の気液二相冷媒が導かれ、水流路25cを流れる水と熱交換する。
In the present embodiment, the first refrigerant circuit RA and the second refrigerant circuit RB share one water heat exchanger 25, and the third refrigerant circuit RC and the fourth refrigerant circuit RD share one other water heat. The exchanger 25 is shared. For this reason, in the first refrigerant circuit RA and the second refrigerant circuit RB, a gas-liquid two-phase refrigerant having an intermediate pressure is supplied to the first refrigerant channel 25a and the second refrigerant channel 25b of the water heat exchanger 25, respectively. It is guided and exchanges heat with water flowing through the water flow path 25c.
この結果、第1の冷媒流路25aおよび第2の冷媒流路25bを流れる気液二相冷媒は、蒸発して水流路25c内の水から熱を受け入れ、蒸発潜熱によって低温・低圧の気液二相冷媒に変化する。水流路25c内の水は、潜熱を奪われることで冷水となる。
As a result, the gas-liquid two-phase refrigerant flowing in the first refrigerant flow path 25a and the second refrigerant flow path 25b evaporates and receives heat from the water in the water flow path 25c, and the low-temperature and low-pressure gas-liquid is generated by latent heat of evaporation. Change to two-phase refrigerant. The water in the water flow path 25c becomes cold water by removing latent heat.
第1の冷媒回路RAおよび第2の冷媒回路RBが共有する水熱交換器25の水流路25cは、第3の水配管46cを介して第3の冷媒回路RCおよび第4の冷媒回路RDが共有する他の水熱交換器25の水流路25cに直列に接続されている。
The water flow path 25c of the water heat exchanger 25 shared by the first refrigerant circuit RA and the second refrigerant circuit RB is connected to the third refrigerant circuit RC and the fourth refrigerant circuit RD via the third water pipe 46c. The other water heat exchanger 25 to be shared is connected in series to the water flow path 25c.
このため、第1の冷媒回路RAおよび第2の冷媒回路RBが共有する水熱交換器25で冷やされた水は、第3の冷媒回路RCおよび第4の冷媒回路RDが共有する他の水熱交換器25の水流路25cを通過する過程で、他の水熱交換器25の第1の冷媒流路25aおよび第2の冷媒流路25bを流れる気液二相冷媒との熱交換により再度冷やされる。二段階に亘って冷やされた水は、第4の水配管46dから第2の現場配管56を介して利用機器側に供給される。
Therefore, the water cooled in the water heat exchanger 25 shared by the first refrigerant circuit RA and the second refrigerant circuit RB is the other water shared by the third refrigerant circuit RC and the fourth refrigerant circuit RD. In the process of passing through the water flow path 25c of the heat exchanger 25, heat exchange with the gas-liquid two-phase refrigerant flowing through the first refrigerant flow path 25a and the second refrigerant flow path 25b of the other water heat exchanger 25 again occurs. Chilled. The water cooled in two stages is supplied from the fourth water pipe 46d to the utilization device side via the second on-site pipe 56.
各水熱交換器25を通過した低温・低圧の気液二相冷媒は、四方弁21を経由して気液分離器26に導かれ、ここで液相冷媒と気相冷媒とに分離される。液相冷媒から分離された気相冷媒は、圧縮機20に吸い込まれるとともに、再び高温・高圧の気相冷媒となって圧縮機20から循環回路27に吐出される。
The low-temperature and low-pressure gas-liquid two-phase refrigerant that has passed through each water heat exchanger 25 is guided to the gas-liquid separator 26 via the four-way valve 21, where it is separated into a liquid-phase refrigerant and a gas-phase refrigerant. . The gas-phase refrigerant separated from the liquid-phase refrigerant is sucked into the compressor 20 and again becomes a high-temperature / high-pressure gas-phase refrigerant and is discharged from the compressor 20 to the circulation circuit 27.
一方、第1の冷凍サイクルユニット3および第2の冷凍サイクルユニット4が加熱モードで運転を開始すると、第1ないし第4の冷媒回路RA,RB,RC,RDの四方弁21は、図5に破線で示すように、第1ポート21aが第3ポート21cに連通し、第2ポート21bが第4ポート21dに連通するように切り換わる。
On the other hand, when the first refrigeration cycle unit 3 and the second refrigeration cycle unit 4 start operation in the heating mode, the four-way valves 21 of the first to fourth refrigerant circuits RA, RB, RC, RD are shown in FIG. As indicated by a broken line, the first port 21a is switched to communicate with the third port 21c, and the second port 21b is switched to communicate with the fourth port 21d.
加熱モードでは、圧縮機20で圧縮された高温・高圧の気相冷媒が四方弁21を経由して水熱交換器25に導かれる。加熱モードにおいても、第1の冷媒回路RAおよび第2の冷媒回路RBが共有する一つの水熱交換器25の水流路25cと、第3の冷媒回路RCおよび第4の冷媒回路RDが共有する他の一つの水熱交換器25の水流路25cとが直列に接続されているので、水流路25cを流れる水は、第1の冷媒流路25aおよび第2の冷媒流路25bを流れる気相冷媒との熱交換により二段階に亘って加熱される。気相冷媒の熱を受けて加熱された水は、第4の水配管46dから第2の現場配管56を介して利用機器側に供給される。
In the heating mode, the high-temperature and high-pressure gas-phase refrigerant compressed by the compressor 20 is guided to the water heat exchanger 25 via the four-way valve 21. Even in the heating mode, the water flow path 25c of one water heat exchanger 25 shared by the first refrigerant circuit RA and the second refrigerant circuit RB, and the third refrigerant circuit RC and the fourth refrigerant circuit RD are shared. Since the water flow path 25c of the other one water heat exchanger 25 is connected in series, the water flowing through the water flow path 25c is the gas phase flowing through the first refrigerant flow path 25a and the second refrigerant flow path 25b. It is heated in two stages by heat exchange with the refrigerant. The water heated by receiving the heat of the gas-phase refrigerant is supplied from the fourth water pipe 46d to the utilization device side through the second on-site pipe 56.
水熱交換器25を通過した高圧の液相冷媒は、レシーバ24および膨張弁23a,23bを通過する過程で中間圧の気液二相冷媒に変化するとともに、空気熱交換器29a,29bに導かれる。空気熱交換器29a,29bに導かれた気液二相冷媒は、ファン30の作動により空気熱交換器29a,29bを通過する空気との熱交換により蒸発し、低温・低圧の気液二相冷媒に変化する。
The high-pressure liquid-phase refrigerant that has passed through the water heat exchanger 25 is changed to an intermediate-pressure gas-liquid two-phase refrigerant in the process of passing through the receiver 24 and the expansion valves 23a and 23b, and is also introduced into the air heat exchangers 29a and 29b. It is burned. The gas-liquid two-phase refrigerant guided to the air heat exchangers 29a and 29b evaporates by heat exchange with the air passing through the air heat exchangers 29a and 29b by the operation of the fan 30, and the low-temperature and low-pressure gas-liquid two-phase refrigerant Change to refrigerant.
空気熱交換器29a,29bを通過した低温・低圧の気液二相冷媒は、四方弁21を経由して気液分離器26に導かれ、ここで液相冷媒と気相冷媒とに分離される。液相冷媒から分離された気相冷媒は、圧縮機20に吸い込まれるとともに、再び高温・高圧の気相冷媒となって圧縮機20から循環回路27に吐出される。
The low-temperature and low-pressure gas-liquid two-phase refrigerant that has passed through the air heat exchangers 29a and 29b is guided to the gas-liquid separator 26 via the four-way valve 21, where it is separated into a liquid-phase refrigerant and a gas-phase refrigerant. The The gas-phase refrigerant separated from the liquid-phase refrigerant is sucked into the compressor 20 and again becomes a high-temperature / high-pressure gas-phase refrigerant and is discharged from the compressor 20 to the circulation circuit 27.
第1の実施形態のチリングユニット1によると、水回路5の第1の接続端部48および第2の接続端部51は、夫々筐体2の機械室14から筐体2の背後の段差部43に向けて突出されている。段差部43は、第1のセクションとしての筐体2の長さを第2のセクションとしての四組の空気熱交換部22の長さよりも短くすることで形成され、第2のセクションの後端に位置された一つの空気熱交換部22よりも引っ込んだスペースS1を規定している。
According to the chilling unit 1 of the first embodiment, the first connection end 48 and the second connection end 51 of the water circuit 5 are respectively stepped from the machine chamber 14 of the housing 2 to the back of the housing 2. It protrudes toward 43. The step portion 43 is formed by making the length of the casing 2 as the first section shorter than the length of the four sets of air heat exchange portions 22 as the second section, and the rear end of the second section. The space S1 which is retracted from one air heat exchanging part 22 located in is defined.
そのため、水回路5の第1の接続端部48および第2の接続端部51が機械室14の背後に突出しているにも拘らず、第1の接続端部48および第2の接続端部51は、チリングユニット1の背後に大きく張り出すことなく段差部43のスペースS1に収まる。
Therefore, although the first connection end 48 and the second connection end 51 of the water circuit 5 protrude behind the machine room 14, the first connection end 48 and the second connection end 51 fits in the space S <b> 1 of the stepped portion 43 without projecting greatly behind the chilling unit 1.
したがって、チリングユニット1を第1および第2の現場配管55,56が敷設された設置面Gの上に据え付けるに当たって、チリングユニット1を第1および第2の現場配管55,56に近づけることが可能となる。
Therefore, when the chilling unit 1 is installed on the installation surface G on which the first and second site pipes 55 and 56 are laid, the chilling unit 1 can be brought close to the first and second site pipes 55 and 56. It becomes.
この結果、チリングユニット1の据え付けに必要なスペースを削減でき、狭小なスペースであってもチリングユニット1の据え付け作業を無理なく実行することができる。
As a result, the space required for installation of the chilling unit 1 can be reduced, and the installation operation of the chilling unit 1 can be performed without difficulty even in a small space.
さらに、第1の実施形態によると、機械室14に収容されたメインボックス72の上端部を、一対の樋61a,61bの間を通して空気熱交換部22の内側の排気通路33に突出させたので、メインボックス72の内容積を確保しつつ、筐体2の奥行き方向に沿うメインボックス72の長さ寸法を短縮することができる。これにより、機械室14に対するメインボックス72の占有領域が筐体2の奥行き方向に短くなり、筐体2の奥行き方向に沿う長さ寸法を短縮する上で有効に寄与する。
Furthermore, according to the first embodiment, the upper end portion of the main box 72 accommodated in the machine room 14 is protruded into the exhaust passage 33 inside the air heat exchanging portion 22 through the pair of flanges 61a and 61b. The length of the main box 72 along the depth direction of the housing 2 can be shortened while securing the internal volume of the main box 72. As a result, the area occupied by the main box 72 with respect to the machine room 14 is shortened in the depth direction of the housing 2, which effectively contributes to shortening the length dimension along the depth direction of the housing 2.
それとともに、第1の実施形態では、ファン30の羽根車34の回転速度を制御するインバータ基板がファンモータ35に内蔵されている。この結果、電装ボックス70の内部にインバータ基板を収めるスペースを確保する必要はなく、電装ボックス70の長さを抑制することができる。
In addition, in the first embodiment, an inverter board that controls the rotational speed of the impeller 34 of the fan 30 is built in the fan motor 35. As a result, it is not necessary to secure a space for housing the inverter board in the electrical box 70, and the length of the electrical box 70 can be suppressed.
よって、第1のセクションとしての筐体2の長さを第2のセクションとしての空気熱交換部22の長さよりも十分に短くすることができ、筐体2の背後の側に水回路5の第1の接続端部48および第2の接続端部51を収めるスペースS1を有した段差部43を容易に得ることができる。
Therefore, the length of the casing 2 as the first section can be made sufficiently shorter than the length of the air heat exchanging portion 22 as the second section, and the water circuit 5 is placed behind the casing 2. A step 43 having a space S1 for accommodating the first connection end 48 and the second connection end 51 can be easily obtained.
「第2の実施形態」
図10は、第2の実施形態を開示している。 “Second Embodiment”
FIG. 10 discloses a second embodiment.
図10は、第2の実施形態を開示している。 “Second Embodiment”
FIG. 10 discloses a second embodiment.
第2の実施形態は、ポンプレス仕様のチリングユニット100を開示している。ポンプレス仕様のチリングユニット100では、水回路5から水循環ポンプ45が排除されており、それ以外のチリングユニット100の構成は、基本的に第1の実施形態と同様である。そのため、第2の実施形態において、第1の実施形態と同一の構成部分には同一の参照符号を付して、その説明を省略する。
The second embodiment discloses a chilling unit 100 of a pumpless specification. In the chilling unit 100 of the pumpless specification, the water circulation pump 45 is excluded from the water circuit 5, and the configuration of the chilling unit 100 other than that is basically the same as that of the first embodiment. Therefore, in the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
図10に示すように、ポンプレス仕様のチリングユニット100によると、水循環ポンプが収められていた機械室14の後端部に空きスペースが生じるので、当該空きスペースに水回路5の第1の接続端部48および第2の接続端部51が収容されている。そのため、本実施形態では、第1の現場配管55が筐体2の背後の段差部43に入り込んでいるとともに、第2の現場配管56が第1の実施形態に比べて段差部43に近づいている。
As shown in FIG. 10, according to the chilling unit 100 of the pumpless specification, an empty space is generated at the rear end portion of the machine room 14 in which the water circulation pump is accommodated, so that the first connection end of the water circuit 5 is formed in the empty space. The part 48 and the second connection end 51 are accommodated. Therefore, in the present embodiment, the first site piping 55 enters the stepped portion 43 behind the housing 2, and the second site piping 56 approaches the stepped portion 43 as compared to the first embodiment. Yes.
第2の実施形態によると、段差部43が規定するスペースS1を利用して第1の現場配管55を引き回すことができる。言い換えると、第1の現場配管55が段差部43に入り込み、第2の現場配管56が段差部43により近づく位置まで、チリングユニット100の筐体2を第1の現場配管55および第2の現場配管56の側に寄せることができる。
According to the second embodiment, the first on-site piping 55 can be routed using the space S1 defined by the stepped portion 43. In other words, the housing 2 of the chilling unit 100 is connected to the first site piping 55 and the second site until the first site piping 55 enters the stepped portion 43 and the second site piping 56 approaches the stepped portion 43. It can be brought closer to the pipe 56 side.
したがって、チリングユニット1を据え付けるためのスペースをより一層削減することができる。
Therefore, the space for installing the chilling unit 1 can be further reduced.
「第3の実施形態」
図11は、第3の実施形態を開示している。 “Third Embodiment”
FIG. 11 discloses a third embodiment.
図11は、第3の実施形態を開示している。 “Third Embodiment”
FIG. 11 discloses a third embodiment.
第3の実施形態に係るチリングユニット200によると、第1のセクションとしての筐体2の背後に第1の段差部201が形成され、筐体2の前側に第2の段差部202が形成されている。
According to the chilling unit 200 according to the third embodiment, the first step portion 201 is formed behind the housing 2 as the first section, and the second step portion 202 is formed on the front side of the housing 2. ing.
第1の段差部201は、筐体2の側方および背後に向けて連続して開放されたスペースS2を有し、当該スペースS2に水回路5の第1の接続端部48および第2の接続端部51が位置されている。同様に第2の段差部202は、筐体2の側方および前方に向けて連続して開放されたスペースS3を有し、当該スペースS3に例えば配管キットのようなオプション部品203が位置されている。
The first step portion 201 has a space S2 continuously opened toward the side and the back of the housing 2, and the first connection end portion 48 and the second connection portion 48 of the water circuit 5 are provided in the space S2. A connecting end 51 is located. Similarly, the second stepped portion 202 has a space S3 continuously opened toward the side and the front of the housing 2, and an optional component 203 such as a piping kit is positioned in the space S3. Yes.
第3の実施形態によると、筐体2の前側に位置する第2の段差部202をオプション部品203の配置スペースとして活用でき、筐体2の周囲を有効に利用することができる。
According to the third embodiment, the second stepped portion 202 located on the front side of the housing 2 can be used as an arrangement space for the optional component 203, and the periphery of the housing 2 can be used effectively.
「第4の実施形態」
上記した第1の実施形態において、排熱ファンユニット300(ファン装置71)は、電装ボックス70の内部に空気の流れを発生させ、これにより、電装ボックス70の内部の熱気を機外に排熱可能(換言すると、電装ボックス70の内部を冷却(空冷)可能)に構成されている。かかる構成において、ダクトユニット81(ファン装置71、排熱ファンユニット300)は、電装ボックス70の上面の中央部分に設けられている(図6、図8および図9参照)。 “Fourth Embodiment”
In the first embodiment described above, the exhaust heat fan unit 300 (fan device 71) generates an air flow inside theelectrical box 70, thereby exhausting hot air inside the electrical box 70 outside the machine. It is configured to be possible (in other words, the inside of the electrical box 70 can be cooled (air cooled)). In such a configuration, the duct unit 81 (fan device 71, exhaust heat fan unit 300) is provided in the central portion of the upper surface of the electrical box 70 (see FIGS. 6, 8, and 9).
上記した第1の実施形態において、排熱ファンユニット300(ファン装置71)は、電装ボックス70の内部に空気の流れを発生させ、これにより、電装ボックス70の内部の熱気を機外に排熱可能(換言すると、電装ボックス70の内部を冷却(空冷)可能)に構成されている。かかる構成において、ダクトユニット81(ファン装置71、排熱ファンユニット300)は、電装ボックス70の上面の中央部分に設けられている(図6、図8および図9参照)。 “Fourth Embodiment”
In the first embodiment described above, the exhaust heat fan unit 300 (fan device 71) generates an air flow inside the
かくして、空気熱交換部22用のファン30が停止した場合でも、排熱ファンユニット300(電動ファン82a,82b,82c)を独自に動作させることが可能となる。この結果、電装ユニット6(電装ボックス70)の内部に対する排熱動作を維持ないし継続させることができる。
Thus, even when the fan 30 for the air heat exchange unit 22 is stopped, the exhaust heat fan unit 300 ( electric fans 82a, 82b, 82c) can be independently operated. As a result, the exhaust heat operation for the inside of the electrical unit 6 (the electrical box 70) can be maintained or continued.
ところで、ファン装置71(ダクトユニット81、排熱ファンユニット300)の配置は、電装ボックス70の上面の中央部分に限られない。要するに、電装ボックス70内の各種の電気部品(発熱部品)から発せられる熱気を排熱可能であれば、例えば、電装ボックス70の側面や下面に、当該ファン装置71を配置することができる。
Incidentally, the arrangement of the fan device 71 (the duct unit 81 and the exhaust heat fan unit 300) is not limited to the central portion of the upper surface of the electrical box 70. In short, the fan device 71 can be disposed on the side surface or the lower surface of the electrical box 70, for example, as long as hot air emitted from various electrical components (heat generating components) in the electrical box 70 can be exhausted.
本実施形態では、上記した排熱ファンユニット300が、ダクトユニット81から引き出し可能(即ち、筐体2の外に引き出し可能)に構成されている。これにより、ファン装置71(ダクトユニット81、排熱ファンユニット300)の配置の自由度を向上させることができる。以下、具体的に説明する。
In the present embodiment, the exhaust heat fan unit 300 described above is configured to be drawable from the duct unit 81 (that is, can be pulled out of the housing 2). Thereby, the freedom degree of arrangement | positioning of the fan apparatus 71 (duct unit 81, the exhaust heat fan unit 300) can be improved. This will be specifically described below.
図12~図13に示すように、本実施形態のチリングユニット1は、出し入れ機構302を有している。出し入れ機構302は、排熱ファンユニット300をダクトユニット81に対して、引き出したり、挿入したり(押し込んだり)することが可能に構成されている。
As shown in FIG. 12 to FIG. 13, the chilling unit 1 of this embodiment has a loading / unloading mechanism 302. The taking in / out mechanism 302 is configured to be able to pull out or insert (push in) the exhaust heat fan unit 300 with respect to the duct unit 81.
ここで、排熱ファンユニット300をダクトユニット81から引き出す。これにより、排熱ファンユニット300を筐体2の外に引き出すことが可能となる。一方、排熱ファンユニット300をダクトユニット81に挿入する(押し込む)。これにより、排熱ファンユニット300をダクトユニット81に出し入れ可能に収容させることができる。
Here, the exhaust heat fan unit 300 is pulled out from the duct unit 81. As a result, the exhaust heat fan unit 300 can be pulled out of the housing 2. On the other hand, the exhaust heat fan unit 300 is inserted (pushed in) into the duct unit 81. Thereby, the exhaust heat fan unit 300 can be accommodated in the duct unit 81 so that it can be taken in and out.
このような動作を実現するために、出し入れ機構302は、スライダ302aと、ガイドレール302b(図18参照)と、操作パネル302cと、を備えている。
In order to realize such an operation, the loading / unloading mechanism 302 includes a slider 302a, a guide rail 302b (see FIG. 18), and an operation panel 302c.
スライダ302aは、排熱ファンユニット300を搭載可能に構成されている。スライダ302aは、排熱ファンユニット300の左右両側に、互いに平行に設けられている。スライダ302aは、筐体2の奥行き方向(矢印FからR方向)に沿って平行に配置されている。
The slider 302a is configured to be able to mount the exhaust heat fan unit 300. The sliders 302 a are provided in parallel on the left and right sides of the exhaust heat fan unit 300. The slider 302a is arranged in parallel along the depth direction of the housing 2 (from the arrow F to the R direction).
スライダ302aは、ガイドレール302bに沿って往復動可能に構成されている。ガイドレール302bは、ダクトユニット81の両側に沿って、互いに平行に設けられている。ガイドレール302bは、スライダ302aに対向させて配置されている。即ち、ガイドレール302bは、筐体2の奥行き方向(矢印FからR方向)に沿って平行に配置されている。
The slider 302a is configured to reciprocate along the guide rail 302b. The guide rails 302b are provided in parallel to each other along both sides of the duct unit 81. The guide rail 302b is disposed to face the slider 302a. That is, the guide rail 302b is disposed in parallel along the depth direction of the housing 2 (the direction from the arrow F to the R).
操作パネル302cは、筐体2の正面方向Fからスライダ302aに連結されており、排熱ファンユニット300の前面を構成している。操作パネル302cには、作業員が手指で掴むことが可能な把手部302dが設けられている。
The operation panel 302 c is connected to the slider 302 a from the front direction F of the housing 2 and constitutes the front surface of the exhaust heat fan unit 300. The operation panel 302c is provided with a handle portion 302d that can be grasped by a worker with fingers.
また、筐体2の正面方向Fは、正面板303と上部板304によって覆われている。上部板304は、正面板303の上部側に着脱自在に取り付けられている。筐体2に上部板304を取り付けた状態において、操作パネル302cは、当該上部板304によって外部から隔離された状態に維持されている。
Further, the front direction F of the housing 2 is covered with a front plate 303 and an upper plate 304. The upper plate 304 is detachably attached to the upper side of the front plate 303. In a state where the upper plate 304 is attached to the housing 2, the operation panel 302 c is maintained in a state of being isolated from the outside by the upper plate 304.
ここで、排熱ファンユニット300がダクトユニット81に収容された状態において、作業員が、上部板304を筐体2から取り外した後、手指で把手部302dを掴んで手前に引き出す。これにより、スライダ302aがガイドレール302bに沿って移動し、排熱ファンユニット300が、スライダ302aと共に、ダクトユニット81から引き出される。
Here, in a state where the exhaust heat fan unit 300 is housed in the duct unit 81, the worker removes the upper plate 304 from the housing 2, and then grasps the grip portion 302d with fingers and pulls it out to the front. Thereby, the slider 302a moves along the guide rail 302b, and the heat exhaust fan unit 300 is pulled out from the duct unit 81 together with the slider 302a.
かかる状態において、例えば、排熱ファンユニット300(電動ファン82a,82b,82c)に対する洗浄、修理、交換などの各種のメンテナンスを容易に行うことができる。メンテナンスの終了後、再び、排熱ファンユニット300をダクトユニット81に収容させる。
In such a state, for example, various maintenance such as cleaning, repair, and replacement of the exhaust heat fan unit 300 ( electric fans 82a, 82b, and 82c) can be easily performed. After the maintenance is completed, the exhaust heat fan unit 300 is accommodated in the duct unit 81 again.
即ち、作業員が、排熱ファンユニット300を、スライダ302aと共に、ダクトユニット81に挿入し、当該排熱ファンユニット300をダクトユニット81に収容させることができる。この後、上部板304を筐体2に取り付ける。
That is, an operator can insert the exhaust heat fan unit 300 into the duct unit 81 together with the slider 302 a and accommodate the exhaust heat fan unit 300 in the duct unit 81. Thereafter, the upper plate 304 is attached to the housing 2.
以上、本実施形態によれば、排熱ファンユニット300を、ダクトユニット81から引き出し可能とすることで、当該排熱ファンユニット300を筐体2の外に引き出し可能に構成する。これにより、ファン装置71の配置の自由度を向上させることができる。例えば、従来ではメンテナンスが困難であったために設置できなかったような場所にも、当該ファン装置71を配置することができる。
As described above, according to the present embodiment, the exhaust heat fan unit 300 can be pulled out from the duct unit 81 so that the exhaust heat fan unit 300 can be pulled out of the housing 2. Thereby, the freedom degree of arrangement | positioning of the fan apparatus 71 can be improved. For example, the fan device 71 can be arranged in a place where it could not be installed because maintenance was difficult in the past.
なお、上記した出し入れ機構302の構成は、あくまで一例であって、他の構成によって出し入れ機構302を実現してもよい。
Note that the above-described configuration of the loading / unloading mechanism 302 is merely an example, and the loading / unloading mechanism 302 may be realized by another configuration.
「第5実施形態」
図14~図16に示すように、本実施形態のチリングユニット1は、上記したファン装置71(ダクトユニット81、排熱ファンユニット300)と、仕切ベース305,306と、カバー307と、整流板308と、を有している。 “Fifth Embodiment”
As shown in FIGS. 14 to 16, thechilling unit 1 of the present embodiment includes the fan device 71 (the duct unit 81 and the exhaust heat fan unit 300), the partition bases 305 and 306, the cover 307, and the current plate. 308.
図14~図16に示すように、本実施形態のチリングユニット1は、上記したファン装置71(ダクトユニット81、排熱ファンユニット300)と、仕切ベース305,306と、カバー307と、整流板308と、を有している。 “Fifth Embodiment”
As shown in FIGS. 14 to 16, the
「仕切ベース305,306」
仕切ベース305,306は、空気熱交換部22と筐体2(機械室14)との間に配置されている。仕切ベース305,306は、各空気熱交換部22の下端に1つずつ設けられている。仕切ベース305,306は、空気熱交換部22の下端の全体を覆うように構成されている。仕切ベース305,306は、上記した排気通路33(図9参照)の下端よりも広範囲に亘って構成されている。仕切ベース305,306は、一対の樋61a,61bの相互間に亘って広がっている。 "Partition base 305,306"
The partition bases 305 and 306 are disposed between the airheat exchange unit 22 and the housing 2 (machine room 14). One partition base 305, 306 is provided at the lower end of each air heat exchange unit 22. The partition bases 305 and 306 are configured to cover the entire lower end of the air heat exchange unit 22. The partition bases 305 and 306 are configured over a wider range than the lower end of the exhaust passage 33 (see FIG. 9). The partition bases 305 and 306 extend between the pair of flanges 61a and 61b.
仕切ベース305,306は、空気熱交換部22と筐体2(機械室14)との間に配置されている。仕切ベース305,306は、各空気熱交換部22の下端に1つずつ設けられている。仕切ベース305,306は、空気熱交換部22の下端の全体を覆うように構成されている。仕切ベース305,306は、上記した排気通路33(図9参照)の下端よりも広範囲に亘って構成されている。仕切ベース305,306は、一対の樋61a,61bの相互間に亘って広がっている。 "Partition base 305,306"
The partition bases 305 and 306 are disposed between the air
仕切ベース305,306は、その左右方向中央部分から左右両側に向かって、下り勾配の傾斜面M1,M2を有して構成されている。傾斜面M1,M2の一端は、仕切ベース305,306の中央部分に位置付けられている。傾斜面M1,M2の他端は、仕切ベース305,306の両側(即ち、樋61a,61b)に位置付けられている。
The partition bases 305 and 306 are configured to have downwardly inclined surfaces M1 and M2 from the central portion in the left-right direction toward the left and right sides. One end of each of the inclined surfaces M1 and M2 is positioned at the central portion of the partition bases 305 and 306. The other ends of the inclined surfaces M1 and M2 are positioned on both sides of the partition bases 305 and 306 (that is, the flanges 61a and 61b).
また、図15に示すように、仕切ベース305,306の左右両側(傾斜面M1,M2の他端)は、下方へ下がった段部306bが形成されており、この段部306bには、複数の通路309が、間隔を存して設けられている。通路309は、仕切ベース305,306を貫通させて構成されている。
Further, as shown in FIG. 15, the left and right sides of the partition bases 305 and 306 (the other ends of the inclined surfaces M1 and M2) are formed with stepped portions 306b that are lowered downward. The passages 309 are provided at intervals. The passage 309 is configured by penetrating the partition bases 305 and 306.
ここで、図16に示すように、仕切ベース305,306の両側に形成された段部306bは、上方に配置される熱交換部22の空気熱交換器29a,29bの下端の一部が接触しないように、当該空気熱交換器29a,29bから離間させて配置されている。これにより、空気熱交換器29a,29bと仕切りベース305,306との接触部分において、表面張力等により雨水やドレン水の流れを妨げることなく、良好な排水性を確保することができる。また、寒冷条件での着霜・氷結の成長を抑止することができ、熱交換性能の低下を防止することができる。
Here, as shown in FIG. 16, the stepped portions 306b formed on both sides of the partition bases 305 and 306 are in contact with a part of the lower ends of the air heat exchangers 29a and 29b of the heat exchanging portion 22 disposed above. In order to avoid this, the air heat exchangers 29a and 29b are arranged apart from each other. Thereby, in the contact part of the air heat exchangers 29a and 29b and the partition bases 305 and 306, favorable drainage can be ensured without obstructing the flow of rain water or drain water due to surface tension or the like. Further, it is possible to suppress the growth of frost and freezing under cold conditions, and it is possible to prevent a decrease in heat exchange performance.
かかる仕切ベース305,306によれば、そのベース表面(傾斜面M1,M2)に落下ないし付着した水(例えば、雨水)は、当該ベース表面(傾斜面M1,M2)に沿って流下する。流下した水は、仕切ベース305,306の両側の段部306bの通路309から樋61a,61bに落下する。落下した水は、樋61a,61bを流れた後、上記したドレン回収盤62を介して排水される。なお、雨水としては、例えば、上記した排気通路33に吹き込んだ雨水や、空気熱交換部22を伝って流れ落ちた雨水などが想定される。
According to the partition bases 305 and 306, water (for example, rainwater) that falls or adheres to the base surfaces (inclined surfaces M1 and M2) flows down along the base surfaces (inclined surfaces M1 and M2). The water that has flowed down falls from the passages 309 of the step portions 306b on both sides of the partition bases 305 and 306 to the eaves 61a and 61b. The dropped water flows through the troughs 61a and 61b and is then drained through the drain collecting board 62 described above. Note that, as rainwater, for example, rainwater blown into the exhaust passage 33 described above, rainwater that has flowed down through the air heat exchanger 22, or the like is assumed.
本実施形態において、上記した仕切ベース305,306のうち、電装ユニット6(電装ボックス70)と、空気熱交換部22との間の仕切ベース306には、ダクトユニット81が貫通されて支持されている。ダクトユニット81は、仕切ベース306の中央部分に設けられている。ダクトユニット81は、仕切ベース306の両側(上部側、下部側)に突出した状態で構成されている。なお、仕切ベース306の上部側とは、空気熱交換部22(排気通路33)が配置された側を指す。仕切ベース306の下部側とは、筐体2(電装ユニット6(電装ボックス70))が配置された側を指す。
In the present embodiment, among the above-described partition bases 305 and 306, the duct unit 81 is penetrated and supported by the partition base 306 between the electrical equipment unit 6 (the electrical equipment box 70) and the air heat exchange unit 22. Yes. The duct unit 81 is provided in the central portion of the partition base 306. The duct unit 81 is configured to protrude to both sides (upper side and lower side) of the partition base 306. The upper side of the partition base 306 refers to the side on which the air heat exchange unit 22 (exhaust passage 33) is disposed. The lower side of the partition base 306 refers to the side on which the housing 2 (the electrical unit 6 (the electrical box 70)) is disposed.
ここで、仕切ベース306の上部側のダクトユニット81を、上部ダクト310と称し、仕切ベース306の下部側のダクトユニット81を、下部ダクト311と称する。この場合、上記した吹き出し部301は、ダクトユニット81(即ち、上部ダクト310、下部ダクト311)の開口(吹出口)として規定することができる。
Here, the upper duct unit 81 of the partition base 306 is referred to as an upper duct 310, and the lower duct unit 81 of the partition base 306 is referred to as a lower duct 311. In this case, the above-described blowing part 301 can be defined as an opening (blow-out opening) of the duct unit 81 (that is, the upper duct 310 and the lower duct 311).
「カバー307」
カバー307は、かかる吹き出し部301、即ち、ダクトユニット81(上部ダクト310、下部ダクト311)の開口(吹出口)を覆うように配置されている。換言すると、吹き出し部301の上方、即ち、ダクトユニット81(上部ダクト310、下部ダクト311)の上方は、カバー307で覆われている。この場合、カバー307は、吹き出し部301(ダクトユニット81)から離間した位置に設けられている。カバー307と吹き出し部301(ダクトユニット81)とは、相互に非接触な位置関係を有している(図18~図19参照)。 "Cover 307"
Thecover 307 is disposed so as to cover the blowing portion 301, that is, the opening (blow-out port) of the duct unit 81 (the upper duct 310 and the lower duct 311). In other words, the upper part of the blowing part 301, that is, the upper part of the duct unit 81 (the upper duct 310 and the lower duct 311) is covered with the cover 307. In this case, the cover 307 is provided at a position separated from the blowing portion 301 (duct unit 81). The cover 307 and the blowing portion 301 (duct unit 81) have a non-contact positional relationship (see FIGS. 18 to 19).
カバー307は、かかる吹き出し部301、即ち、ダクトユニット81(上部ダクト310、下部ダクト311)の開口(吹出口)を覆うように配置されている。換言すると、吹き出し部301の上方、即ち、ダクトユニット81(上部ダクト310、下部ダクト311)の上方は、カバー307で覆われている。この場合、カバー307は、吹き出し部301(ダクトユニット81)から離間した位置に設けられている。カバー307と吹き出し部301(ダクトユニット81)とは、相互に非接触な位置関係を有している(図18~図19参照)。 "
The
なお、カバー307の取付仕様としては、例えば、ダクトユニット81(特に、上部ダクト310)に支持されるように設定してもよいし、或いは、仕切ベース306に支持されるように設定してもよい。
The cover 307 may be set to be supported by the duct unit 81 (particularly, the upper duct 310) or may be set to be supported by the partition base 306, for example. Good.
カバー307は、その中央部分から両側に向かって下り勾配を有した輪郭に構成されている。カバー307は、表面307a(以下、カバー表面と言う)と、裏面307b(以下、カバー裏面と言う)と、を備えている。カバー表面307aとカバー裏面307bとは、互いに対向して平行に構成されている。カバー表面307a及びカバー裏面307bは、カバー307の輪郭に沿った形状を有している。即ち、カバー表面307a及びカバー裏面307bは、その中央部分から両側に向かって下り勾配を有している。
The cover 307 has a contour having a downward slope from the central portion toward both sides. The cover 307 includes a front surface 307a (hereinafter referred to as a cover surface) and a back surface 307b (hereinafter referred to as a cover back surface). The cover surface 307a and the cover back surface 307b are configured to face each other in parallel. The cover surface 307 a and the cover back surface 307 b have a shape along the outline of the cover 307. That is, the cover surface 307a and the cover back surface 307b have a downward slope from the central portion toward both sides.
ここで、カバー307の中央部分とは、筐体2の奥行き方向(矢印FからR方向)に沿って平行に延出した部分を指す。図面では一例として、カバー307の中央部分と、上記した仕切ベース306の中央部分とは、重力方向で見て上下に互いに平行に位置付けられている。カバー307の両側とは、その中央部分から仕切ベース306のベース表面(傾斜面M1,M2)に向かって接近している部分を指す。
Here, the central portion of the cover 307 refers to a portion extending in parallel along the depth direction of the housing 2 (from the arrow F to the R direction). In the drawing, as an example, the central portion of the cover 307 and the central portion of the partition base 306 described above are positioned parallel to each other vertically when viewed in the direction of gravity. The both sides of the cover 307 indicate portions that are approaching from the central portion toward the base surface (the inclined surfaces M1 and M2) of the partition base 306.
かかるカバー307によれば、そのカバー表面307aに落下ないし付着した水(例えば、雨水)は、当該カバー表面307aに沿って流下する。流下した水は、カバー表面307aの両側からベース表面(傾斜面M1,M2)に落下する。落下した水は、ベース表面(傾斜面M1,M2)に沿って流下する。流下した水は、ベース表面の両側(傾斜面M1,M2の他端)の通路から樋61a,61bに落下する。落下した水は、樋61a,61bを流れた後、上記したドレン回収盤62を介して排水される。
According to such a cover 307, water (for example, rainwater) that falls or adheres to the cover surface 307a flows down along the cover surface 307a. The water that has flowed down falls from both sides of the cover surface 307a to the base surface (inclined surfaces M1, M2). The dropped water flows down along the base surface (inclined surfaces M1, M2). The water that has flowed down falls from the passages on both sides of the base surface (the other ends of the inclined surfaces M1 and M2) to the eaves 61a and 61b. The dropped water flows through the troughs 61a and 61b and is then drained through the drain collecting board 62 described above.
一方、上記した排熱ファンユニット300(電動ファン82a,82b,82c)によって、ダクトユニット81(上部ダクト310、下部ダクト311)の吹き出し部301から吹き出された熱気は、当該カバー裏面307bに沿って流動する。即ち、熱気は、カバー裏面307bの中央部分から両側に向かって流動する。両側に流動した熱気は、カバー裏面307bと、ダクトユニット81(具体的には、上部ダクト310)との間を通った後、カバー307の両側から流出する。
On the other hand, the hot air blown out from the blowing portion 301 of the duct unit 81 (the upper duct 310 and the lower duct 311) by the exhaust heat fan unit 300 (the electric fans 82a, 82b, and 82c) along the cover back surface 307b. To flow. That is, the hot air flows from the central portion of the cover back surface 307b toward both sides. The hot air that has flowed to both sides flows between the cover back surface 307 b and the duct unit 81 (specifically, the upper duct 310), and then flows out from both sides of the cover 307.
「整流板308」
整流板308は、カバー307の両側から、予め設定された距離だけ、離間させて配置されている。整流板308は、カバー307の両側に対向した位置に、それぞれ1つずつ設けられている。図面では一例として、整流板308は、仕切ベース306のベース表面(傾斜面M1,M2)に、1つずつ配置されている。整流板308は、互いに平行に対向した位置関係を有している。整流板308は、ベース表面(傾斜面M1,M2)から、上記した排気通路33に向けて立ち上げられている。 “Rectifyingplate 308”
The rectifyingplate 308 is disposed away from both sides of the cover 307 by a predetermined distance. One rectifying plate 308 is provided at a position facing both sides of the cover 307. In the drawing, as an example, the rectifying plates 308 are arranged one by one on the base surface (inclined surfaces M1 and M2) of the partition base 306. The rectifying plates 308 have a positional relationship facing each other in parallel. The rectifying plate 308 is raised from the base surface (inclined surfaces M1, M2) toward the exhaust passage 33 described above.
整流板308は、カバー307の両側から、予め設定された距離だけ、離間させて配置されている。整流板308は、カバー307の両側に対向した位置に、それぞれ1つずつ設けられている。図面では一例として、整流板308は、仕切ベース306のベース表面(傾斜面M1,M2)に、1つずつ配置されている。整流板308は、互いに平行に対向した位置関係を有している。整流板308は、ベース表面(傾斜面M1,M2)から、上記した排気通路33に向けて立ち上げられている。 “Rectifying
The rectifying
かかる整流板308によれば、上記したカバー307の両側から流出した熱気は、その一部がベース表面(傾斜面M1,M2)に沿って流動する。ここで、上記した整流板308が無い場合、熱気は、空気熱交換部22にダイレクトに到達する。そうすると、到達した熱気によって、空気熱交換部22の交換効率が低下する虞がある。
According to the current plate 308, a part of the hot air flowing out from both sides of the cover 307 flows along the base surface (the inclined surfaces M1 and M2). Here, when there is no rectifying plate 308 described above, the hot air reaches the air heat exchanging unit 22 directly. If it does so, there exists a possibility that the exchange efficiency of the air heat exchange part 22 may fall with the hot air which reached | attained.
しかしながら、本実施形態では、上記した整流板308が配置されている。このため、カバー307の両側から流出した熱気は、当該整流板308によって流動方向が制限される。即ち、かかる熱気は、空気熱交換部22を回避する方向に規制される。換言すると、当該熱気が、空気熱交換部22にダイレクトに到達することは無い。これにより、空気熱交換部22の交換効率を一定に維持することができる。
However, in the present embodiment, the rectifying plate 308 described above is disposed. For this reason, the flow direction of the hot air flowing out from both sides of the cover 307 is restricted by the current plate 308. That is, the hot air is regulated in a direction that avoids the air heat exchange unit 22. In other words, the hot air does not reach the air heat exchange unit 22 directly. Thereby, the exchange efficiency of the air heat exchange part 22 can be maintained constant.
更に、整流板308には、仕切ベース306のベース表面(傾斜面M1,M2)に向けて流路312が設けられている。流路312は、整流板308を貫通させて構成されている。流路312は、整流板308に沿って複数配置されている。この場合、上記したカバー表面307aの両側からベース表面(傾斜面M1,M2)に落下した水(雨水)は、整流板308に到達すると、複数の流路312を通過する。かくして、当該水は、整流板308によって堰き止められること無く、スムーズかつ漏れなくベース表面(傾斜面M1,M2)に沿って流下する。
Furthermore, a flow path 312 is provided in the rectifying plate 308 toward the base surface (inclined surfaces M1, M2) of the partition base 306. The flow path 312 is configured to penetrate the rectifying plate 308. A plurality of flow paths 312 are arranged along the current plate 308. In this case, when the water (rain water) that has fallen from both sides of the cover surface 307 a to the base surface (inclined surfaces M 1 and M 2) reaches the current plate 308, it passes through the plurality of flow paths 312. Thus, the water flows down along the base surfaces (inclined surfaces M1 and M2) smoothly and without leakage without being blocked by the current plate 308.
「第6実施形態」
図17~図19に示すように、本実施形態のチリングユニット1は、分割(分離)可能に組み立てられている。即ち、チリングユニット1は、上部に位置する第2のセクションである上部セクション1aと、下部に位置する第1のセクションである下部セクション1bと、を有している。上部セクション1aは、下部セクション1bに対して、分離(分割)可能に連結させる(一体化させる)ことができる。 “Sixth Embodiment”
As shown in FIGS. 17 to 19, thechilling unit 1 of the present embodiment is assembled so as to be separable (separable). That is, the chilling unit 1 includes an upper section 1a that is a second section located at the upper portion and a lower section 1b that is a first section located at the lower portion. The upper section 1a can be connected (integrated) to the lower section 1b so as to be separable (split).
図17~図19に示すように、本実施形態のチリングユニット1は、分割(分離)可能に組み立てられている。即ち、チリングユニット1は、上部に位置する第2のセクションである上部セクション1aと、下部に位置する第1のセクションである下部セクション1bと、を有している。上部セクション1aは、下部セクション1bに対して、分離(分割)可能に連結させる(一体化させる)ことができる。 “Sixth Embodiment”
As shown in FIGS. 17 to 19, the
本実施形態において、上記したファン装置71(図16参照)は、上部ファン装置71aと、下部ファン装置71bと、に分離(分割)可能であって、かつ、下部ファン装置71bに対して上部ファン装置71aを連結可能に構成されている。この場合、上部セクション1aは、例えば、上部ファン装置71aと、空気熱交換部22と、を含んで構成されている。下部セクション1bは、例えば、下部ファン装置71bと、筐体2(機械室14(電装ユニット6))と、を含んで構成されている。
In the present embodiment, the above-described fan device 71 (see FIG. 16) can be separated (divided) into an upper fan device 71a and a lower fan device 71b, and is an upper fan relative to the lower fan device 71b. The device 71a is configured to be connectable. In this case, the upper section 1a includes, for example, an upper fan device 71a and an air heat exchange unit 22. The lower section 1b includes, for example, a lower fan device 71b and a housing 2 (machine room 14 (electrical unit 6)).
本実施形態において、上記したダクトユニット81は、上部ダクト310と、下部ダクト311と、に分離(分割)可能であって、かつ、下部ダクト311に対して上部ダクト310を連結可能に構成されている。かかる連結状態において、上部ダクト310と下部ダクト311との間には、上記した仕切ベース306が介在されている。
In the present embodiment, the above-described duct unit 81 can be separated (divided) into an upper duct 310 and a lower duct 311, and the upper duct 310 can be connected to the lower duct 311. Yes. In such a connected state, the above-described partition base 306 is interposed between the upper duct 310 and the lower duct 311.
上部ダクト310は、仕切ベース306の上部側に配置されている。上部ダクト310は、仕切ベース306のベース表面(傾斜面M1,M2)に固定されている。上部ダクト310は、ベース表面(傾斜面M1,M2)から、上記した排気通路33に向けて立ち上げられている。なお、上記したカバー307は、上部ダクト310或いは仕切ベース306のいずれかに支持されている。
The upper duct 310 is disposed on the upper side of the partition base 306. The upper duct 310 is fixed to the base surface (inclined surfaces M1 and M2) of the partition base 306. The upper duct 310 is raised from the base surface (inclined surfaces M1, M2) toward the exhaust passage 33 described above. The cover 307 described above is supported by either the upper duct 310 or the partition base 306.
下部ダクト311は、仕切ベース306の下部側(即ち、裏面側)に配置されている。下部ダクト311は、上部ダクト310及び仕切ベース306から分離された状態に維持されている。下部ダクト311は、支持プレート313に支持されている。支持プレート313は、筐体2に固定されている。かくして、下部ダクト311は、支持プレート313を介して、筐体2に固定されている。
The lower duct 311 is disposed on the lower side (that is, the back side) of the partition base 306. The lower duct 311 is maintained in a state separated from the upper duct 310 and the partition base 306. The lower duct 311 is supported by the support plate 313. The support plate 313 is fixed to the housing 2. Thus, the lower duct 311 is fixed to the housing 2 via the support plate 313.
図面では一例として、上部ダクト310及び下部ダクト311は、それぞれ、中空の矩形状を有している。この場合、上部ダクト310には、中空の上部開口310aが構成されている。下部ダクト311には、中空の下部開口311aが構成されている。そして、仕切ベース306には、その中央部分に、中空のベース開口306aが構成されている。ベース開口306aは、仕切ベース306を貫通させて構成されている。ベース開口306aは、上部開口310a及び下部開口311aに対向して連通されている。図面では一例として、矩形状のベース開口306aが示されている。
In the drawing, as an example, the upper duct 310 and the lower duct 311 each have a hollow rectangular shape. In this case, the upper duct 310 has a hollow upper opening 310a. The lower duct 311 has a hollow lower opening 311a. The partition base 306 has a hollow base opening 306a at the center thereof. The base opening 306a is configured to penetrate the partition base 306. The base opening 306a communicates with the upper opening 310a and the lower opening 311a so as to face each other. In the drawing, a rectangular base opening 306a is shown as an example.
ここで、上記した吹き出し部301(ダクトユニット81の開口(吹出口))は、上部開口310aと、ベース開口306aと、下部開口311aと、によって構成されている。換言すると、上部開口310aと、ベース開口306aと、下部開口311aと、がこの順番で相互に連続(連結)されることで、一連の吹き出し部301が構成されている。
Here, the above-described blowout portion 301 (opening of the duct unit 81 (outlet)) is constituted by an upper opening 310a, a base opening 306a, and a lower opening 311a. In other words, the upper opening 310a, the base opening 306a, and the lower opening 311a are mutually connected (connected) in this order, so that a series of blowing portions 301 is configured.
「上部ファン装置71a、下部ファン装置71b」
上部ファン装置71aは、例えば、上部ダクト310と、仕切ベース306と、カバー307と、を主要な構成要素(component)として設定されている。上記したように、上部ダクト310及びカバー307は、仕切ベース306に支持されている。仕切ベース306は、空気熱交換部22(上部セクション1a)の下端に固定されている。 "Upper fan device 71a, lower fan device 71b"
In theupper fan device 71a, for example, an upper duct 310, a partition base 306, and a cover 307 are set as main components. As described above, the upper duct 310 and the cover 307 are supported by the partition base 306. The partition base 306 is fixed to the lower end of the air heat exchange unit 22 (upper section 1a).
上部ファン装置71aは、例えば、上部ダクト310と、仕切ベース306と、カバー307と、を主要な構成要素(component)として設定されている。上記したように、上部ダクト310及びカバー307は、仕切ベース306に支持されている。仕切ベース306は、空気熱交換部22(上部セクション1a)の下端に固定されている。 "
In the
下部ファン装置71bは、例えば、下部ダクト311と、排熱ファンユニット300(電動ファン82a,82b,82c)と、を主要な構成要素として設定されている。排熱ファンユニット300(電動ファン82a,82b,82c)は、下部ダクト311に収容されている。なお、上記した第2実施形態の出し入れ機構302を適用する仕様では、排熱ファンユニット300(電動ファン82a,82b,82c)は、当該出し入れ機構302によって、下部ダクト311に出し入れ可能に収容される。
The lower fan device 71b has, for example, a lower duct 311 and an exhaust heat fan unit 300 ( electric fans 82a, 82b, 82c) as main components. The exhaust heat fan unit 300 ( electric fans 82 a, 82 b, 82 c) is housed in the lower duct 311. Note that, in the specification to which the loading / unloading mechanism 302 of the second embodiment is applied, the exhaust heat fan unit 300 ( electric fans 82a, 82b, and 82c) is accommodated in the lower duct 311 by the loading / unloading mechanism 302 so as to be removable. .
ここで、下部セクション1bに対して上部セクション1aを連結する。空気熱交換部22が、筐体2(機械室14(電装ユニット6))の上部に配置される。上部ファン装置71aと下部ファン装置71bとが、相互に組み合わされる。このとき、上部ダクト310と下部ダクト311とが、相互に連結される。具体的には、上部ダクト310は、仕切ベース306のベース表面(傾斜面M1,M2)に固定されている。よって、下部ダクト311は、仕切ベース306の下部(即ち、裏面)に連結される。
Here, the upper section 1a is connected to the lower section 1b. The air heat exchange part 22 is arrange | positioned at the upper part of the housing | casing 2 (machine room 14 (electric equipment unit 6)). The upper fan device 71a and the lower fan device 71b are combined with each other. At this time, the upper duct 310 and the lower duct 311 are connected to each other. Specifically, the upper duct 310 is fixed to the base surface (inclined surfaces M1 and M2) of the partition base 306. Therefore, the lower duct 311 is connected to the lower part (that is, the back surface) of the partition base 306.
この状態において、上部ダクト310の上部開口310aと、仕切ベース306のベース開口306aと、下部ダクト311の下部開口311aとが、この順番で相互に連結される。即ち、上部開口310aとベース開口306aと下部開口311aとが、この順番で相互に連続する。かくして、一連の吹き出し部301が構成されたチリングユニット1が組み立てられる。
In this state, the upper opening 310a of the upper duct 310, the base opening 306a of the partition base 306, and the lower opening 311a of the lower duct 311 are connected to each other in this order. That is, the upper opening 310a, the base opening 306a, and the lower opening 311a are continuous with each other in this order. Thus, the chilling unit 1 in which a series of blowing parts 301 is configured is assembled.
かかる構成によれば、ファン装置71(上部セクション1a)を、上部ファン装置71a(上部ダクト310)と、下部ファン装置71b(下部ダクト311)と、に分離(分割)する。これにより、チリングユニット1の組み立てに際し、上部セクション1aと下部セクション1bとを別々に組み立てることができる。即ち、上部セクション1aの組立プロセスと、下部セクション1bの組立プロセスとを、互いに独立して行うことができる。この場合、ファン装置71を組み立てる際、上部ファン装置71aの下部側に下部ファン装置71bを当て付けるだけで足りる。即ち、上部ダクト310の下部側に下部ダクト311を連結するだけで足りる。この結果、上部セクション1aと下部セクション1bとを、短時間で安全かつ正確に連結させる(一体化させる)ことができる。
According to this configuration, the fan device 71 (upper section 1a) is separated (divided) into the upper fan device 71a (upper duct 310) and the lower fan device 71b (lower duct 311). Thereby, when the chilling unit 1 is assembled, the upper section 1a and the lower section 1b can be assembled separately. That is, the assembly process of the upper section 1a and the assembly process of the lower section 1b can be performed independently of each other. In this case, when assembling the fan device 71, it is sufficient to apply the lower fan device 71b to the lower side of the upper fan device 71a. That is, it is sufficient to connect the lower duct 311 to the lower side of the upper duct 310. As a result, the upper section 1a and the lower section 1b can be connected (integrated) safely and accurately in a short time.
「緩衝材314」
図18~図19に示すように、本実施形態のチリングユニット1は、緩衝材314を有している。緩衝材314は、上部セクション1aと下部セクション1bとの間に配置されている。 "Buffer material 314"
As shown in FIGS. 18 to 19, thechilling unit 1 of the present embodiment has a cushioning material 314. The cushioning material 314 is disposed between the upper section 1a and the lower section 1b.
図18~図19に示すように、本実施形態のチリングユニット1は、緩衝材314を有している。緩衝材314は、上部セクション1aと下部セクション1bとの間に配置されている。 "
As shown in FIGS. 18 to 19, the
かかる構成によれば、上部セクション1aと下部セクション1bとを連結する際、緩衝材314が弾性変形する。このとき、連結時の衝撃が、当該緩衝材314によって吸収されて除去される。かくして、連結時の衝撃によって上部セクション1a及び下部セクション1bの構成要素(例えば、上部ダクト310、下部ダクト311)が変形ないし損傷(損壊)する、といった事態の発生を未然に防止することができる。
According to this configuration, when the upper section 1a and the lower section 1b are connected, the cushioning material 314 is elastically deformed. At this time, the shock at the time of connection is absorbed and removed by the buffer material 314. Thus, it is possible to prevent the occurrence of a situation in which the components (for example, the upper duct 310 and the lower duct 311) of the upper section 1a and the lower section 1b are deformed or damaged (broken) due to an impact at the time of connection.
更に、緩衝材314が弾性変形することで、製造交差ないし設計交差が吸収されて除去される。このため、上部セクション1aと下部セクション1bとの間の連結精度を高くする必要が無い。換言すると、上部セクション1aと下部セクション1bとの連結(組み立て)に際し、高い熟練度が求められることが無い。かくして、上部セクション1aと下部セクション1bとの組立性を飛躍的に向上させることができる。
Furthermore, when the cushioning material 314 is elastically deformed, manufacturing intersections or design intersections are absorbed and removed. For this reason, it is not necessary to increase the connection accuracy between the upper section 1a and the lower section 1b. In other words, a high level of skill is not required when connecting (assembling) the upper section 1a and the lower section 1b. Thus, the assemblability of the upper section 1a and the lower section 1b can be greatly improved.
加えて、緩衝材314を設けたことで、上部セクション1aと下部セクション1bとの間のシール性を向上させることができる。例えば、緩衝材314を、上部ダクト310と下部ダクト311との間に配置させる。これにより、上部ダクト310と下部ダクト311とを連結させた状態において、緩衝材314が弾性変形する。この結果、当該緩衝材314が、上部ダクト310と下部ダクト311との間に隙間無く密着する。
In addition, by providing the buffer material 314, the sealing performance between the upper section 1a and the lower section 1b can be improved. For example, the buffer material 314 is disposed between the upper duct 310 and the lower duct 311. Thereby, the buffer material 314 is elastically deformed in a state where the upper duct 310 and the lower duct 311 are connected. As a result, the buffer material 314 is closely attached between the upper duct 310 and the lower duct 311 without a gap.
図面では、矩形の下部ダクト311の上端に沿って緩衝材314が設けられている。この場合、下部ダクト311が、仕切ベース306の下部(即ち、裏面)に連結された際、緩衝材314は、下部ダクト311の上端と、仕切ベース306の下部(裏面)との間に隙間無く密着する。これにより、シール性に優れた一連の吹き出し部301を実現することができる。かくして、当該吹き出し部301のシール性が一定に維持される。
In the drawing, a buffer material 314 is provided along the upper end of the rectangular lower duct 311. In this case, when the lower duct 311 is connected to the lower portion (that is, the back surface) of the partition base 306, the cushioning material 314 has no gap between the upper end of the lower duct 311 and the lower portion (back surface) of the partition base 306. In close contact. Thereby, a series of blowing parts 301 excellent in sealing performance can be realized. Thus, the sealing performance of the blowing part 301 is kept constant.
「水受け機構」
図18~図19に示すように、本実施形態のチリングユニット1は、水受け機構を有している。水受け機構は、上記した吹き出し部301(ダクトユニット81)の内部に設けられている。水受け機構は、例えば、上部セクション1a(空気熱交換部22)の内部に存する水(例えば、雨水)が、下部セクション1b(機械室14(電装ユニット6))の内部に浸入するのを防止可能に構成されている。 "Water receiving mechanism"
As shown in FIGS. 18 to 19, thechilling unit 1 of the present embodiment has a water receiving mechanism. The water receiving mechanism is provided inside the blowing part 301 (duct unit 81) described above. The water receiving mechanism prevents, for example, water (for example, rainwater) existing in the upper section 1a (air heat exchange unit 22) from entering the lower section 1b (machine room 14 (electrical unit 6)). It is configured to be possible.
図18~図19に示すように、本実施形態のチリングユニット1は、水受け機構を有している。水受け機構は、上記した吹き出し部301(ダクトユニット81)の内部に設けられている。水受け機構は、例えば、上部セクション1a(空気熱交換部22)の内部に存する水(例えば、雨水)が、下部セクション1b(機械室14(電装ユニット6))の内部に浸入するのを防止可能に構成されている。 "Water receiving mechanism"
As shown in FIGS. 18 to 19, the
水受け機構は、水受け棚315を備えている。水受け棚315は、吹き出し部301(ダクトユニット81)の内部に向けて突出させて構成されている。水受け棚315は、吹き出し部301(ダクトユニット81)の内部に沿って連続的に構成されている。水受け棚315は、吹き出し部301(ダクトユニット81)の開口の内側を連続的に一部覆うように構成されている。水受け棚315は、水平方向の角度、あるいは、上り勾配の角度を有して突出している。上り勾配の角度とは、水平方向と垂直方向との間の方向に向けた傾斜角を指す。
The water receiving mechanism includes a water receiving shelf 315. The water receiving shelf 315 is configured to protrude toward the inside of the blowing portion 301 (duct unit 81). The water receiving shelf 315 is continuously configured along the inside of the blowing part 301 (duct unit 81). The water receiving shelf 315 is configured to continuously cover a part of the inside of the opening of the blowing part 301 (duct unit 81). The water receiving shelf 315 protrudes with a horizontal angle or an angle of ascending slope. The angle of upward gradient refers to an inclination angle directed in a direction between the horizontal direction and the vertical direction.
「水受け棚315の具体的仕様」
図面では一例として、仕切ベース306の一部を、水受け棚315として利用している。即ち、上部ダクト310の上部開口310aは、仕切ベース306のベース開口306aよりも大きく(広く)設定されている。換言すると、仕切ベース306のベース開口306aは、上部ダクト310の上部開口310aよりも小さく(狭く)設定されている。かかる設定を実現する方法としては、例えば、上部ダクト310をベース開口306aよりも大きく(広く)構成するか、或いは、ベース開口306aを上部ダクト310よりも小さく(狭く)構成する。 "Specific specifications ofwater receiving shelf 315"
In the drawing, as an example, a part of thepartition base 306 is used as the water receiving shelf 315. That is, the upper opening 310 a of the upper duct 310 is set larger (wider) than the base opening 306 a of the partition base 306. In other words, the base opening 306 a of the partition base 306 is set smaller (narrower) than the upper opening 310 a of the upper duct 310. As a method for realizing such setting, for example, the upper duct 310 is configured to be larger (wider) than the base opening 306 a, or the base opening 306 a is configured to be smaller (narrower) than the upper duct 310.
図面では一例として、仕切ベース306の一部を、水受け棚315として利用している。即ち、上部ダクト310の上部開口310aは、仕切ベース306のベース開口306aよりも大きく(広く)設定されている。換言すると、仕切ベース306のベース開口306aは、上部ダクト310の上部開口310aよりも小さく(狭く)設定されている。かかる設定を実現する方法としては、例えば、上部ダクト310をベース開口306aよりも大きく(広く)構成するか、或いは、ベース開口306aを上部ダクト310よりも小さく(狭く)構成する。 "Specific specifications of
In the drawing, as an example, a part of the
これにより、上部ダクト310の下端の内側に、上部開口310aの下端の内側を連続的に一部覆った水受け棚315が実現されている。この場合、水受け棚315は、上部ダクト310の上部開口310aよりも内側に突出した(迫り出した)構造を有している。更に、上記したように、仕切ベース306は、その中央部分から両側に向かって下り勾配を有して構成されている。このため、その一部を利用した当該水受け棚315は、上部開口310aの内方に向かって上り勾配の傾斜角を有して構成されている。
Thus, a water receiving shelf 315 is realized inside the lower end of the upper duct 310 and partially covering the inner side of the lower end of the upper opening 310a. In this case, the water receiving shelf 315 has a structure that protrudes inward (protrudes) from the upper opening 310 a of the upper duct 310. Furthermore, as described above, the partition base 306 is configured to have a downward slope from the central portion toward both sides. Therefore, the water receiving shelf 315 using a part of the water receiving shelf 315 is configured to have an upward inclination angle toward the inside of the upper opening 310a.
更に、水受け棚315と上部ダクト310との組み合せによって、貯水構造が実現されている。貯水構造は、水受け棚315と上部ダクト310とが協働することで、一定量の水を一時的に貯水可能に構成されている。これにより、水受け機構は、貯水構造としての機能を有している。
Furthermore, a water storage structure is realized by a combination of the water receiving shelf 315 and the upper duct 310. The water storage structure is configured such that a certain amount of water can be temporarily stored by the cooperation of the water receiving shelf 315 and the upper duct 310. Thereby, the water receiving mechanism has a function as a water storage structure.
かかる水溜め機構によれば、上部セクション1a(空気熱交換部22)の内部に存する水(例えば、雨水)が、吹き出し部301(ダクトユニット81)に浸入した場合でも、かかる吹き出し部301(ダクトユニット81)の内部に沿って落下する水(雨水)は、上記した水受け棚315によって受け止められる。受け止められた当該水(雨水)は、水受け棚315と上部ダクト310との間に貯水される。かくして、当該水が、下部セクション1b(機械室14(電装ユニット6))の内部に浸入するのを防止することができる。
According to such a water reservoir mechanism, even when water (for example, rainwater) existing in the upper section 1a (air heat exchange unit 22) enters the blowing unit 301 (duct unit 81), the blowing unit 301 (duct) The water (rain water) falling along the inside of the unit 81) is received by the water receiving shelf 315 described above. The received water (rain water) is stored between the water receiving shelf 315 and the upper duct 310. Thus, the water can be prevented from entering the lower section 1b (machine room 14 (electrical unit 6)).
「水抜き機構」
図18~図19に示すように、本実施形態のチリングユニット1は、水抜き機構を有している。水抜き機構は、上記した水受け機構(具体的には、上記した貯水構造)によって貯水された水(例えば、雨水)を、抜き出し可能に構成されている。水抜き機構は、水抜き通路316を備えている。水抜き通路316は、ダクトユニット81(具体的には、上記した上部ダクト310)に設けられている。 "Draining mechanism"
As shown in FIGS. 18 to 19, thechilling unit 1 of the present embodiment has a water draining mechanism. The drainage mechanism is configured to be able to extract water (for example, rainwater) stored by the above-described water receiving mechanism (specifically, the above-described water storage structure). The water drain mechanism includes a water drain passage 316. The drainage passage 316 is provided in the duct unit 81 (specifically, the above-described upper duct 310).
図18~図19に示すように、本実施形態のチリングユニット1は、水抜き機構を有している。水抜き機構は、上記した水受け機構(具体的には、上記した貯水構造)によって貯水された水(例えば、雨水)を、抜き出し可能に構成されている。水抜き機構は、水抜き通路316を備えている。水抜き通路316は、ダクトユニット81(具体的には、上記した上部ダクト310)に設けられている。 "Draining mechanism"
As shown in FIGS. 18 to 19, the
水抜き通路316は、上部ダクト310の下端に沿って間隔を存して設けられている。水抜き通路316は、上部ダクト310の下端を貫通させて構成されている。水抜き通路316は、仕切ベース306のベース表面(傾斜面M1,M2)に向かって貫通されている。
The drainage passage 316 is provided along the lower end of the upper duct 310 with an interval. The drainage passage 316 is configured to penetrate the lower end of the upper duct 310. The drainage passage 316 is penetrated toward the base surface (the inclined surfaces M1 and M2) of the partition base 306.
この場合、貯水構造によって貯水された水(雨水)は、水抜き通路316を通って、ベース表面(傾斜面M1,M2)に抜き出される。抜き出された水は、当該ベース表面(傾斜面M1,M2)に沿って流下する。流下した水は、仕切ベース306の両側(傾斜面M1,M2の他端)の通路から樋61a,61bに落下する。落下した水は、樋61a,61bを流れた後、上記したドレン回収盤62を介して排水される。
In this case, the water (rain water) stored by the water storage structure passes through the drain passage 316 and is extracted to the base surface (inclined surfaces M1, M2). The extracted water flows down along the base surface (inclined surfaces M1, M2). The water that has flowed down falls from the passages on both sides of the partition base 306 (the other ends of the inclined surfaces M1 and M2) to the flanges 61a and 61b. The dropped water flows through the troughs 61a and 61b and is then drained through the drain collecting board 62 described above.
かかる水抜き機構によれば、水受け機構(貯水構造)によって貯水された水(雨水)を、水抜き通路316から排水する。これにより、貯水された水(雨水)が、貯水構造から溢れ出して、吹き出し部301(上部開口310a、ベース開口306a、下部開口311a)の内部に落下するのを防止することができる。かくして、当該水が、下部セクション1b(機械室14(電装ユニット6))の内部に浸入するのを防止することができる。
According to this drainage mechanism, the water (rain water) stored by the water receiving mechanism (water storage structure) is drained from the drainage passage 316. Thereby, the stored water (rain water) can be prevented from overflowing from the water storage structure and falling into the blowout portion 301 (upper opening 310a, base opening 306a, lower opening 311a). Thus, the water can be prevented from entering the lower section 1b (machine room 14 (electrical unit 6)).
ところで、上記した排熱ファンユニット300(電動ファン82a,82b,82c)の上下では、圧力状態が反転している。例えば、排熱動作状態において、排熱ファンユニット300(電動ファン82a,82b,82c)の下側、即ち、電装ユニット6(電装ボックス70)の内部は、負圧となる。一方、排熱ファンユニット300(電動ファン82a,82b,82c)の上側、即ち、吹き出し部301の圧力状態は、正圧となる。
By the way, the pressure state is inverted above and below the exhaust heat fan unit 300 ( electric fans 82a, 82b, 82c). For example, in the exhaust heat operation state, the lower side of the exhaust heat fan unit 300 (the electric fans 82a, 82b, 82c), that is, the inside of the electrical unit 6 (the electrical box 70) has a negative pressure. On the other hand, the pressure state of the exhaust heat fan unit 300 ( electric fans 82a, 82b, and 82c), that is, the blowing portion 301 is positive.
これにより、排熱時、貯水された水(雨水)は、常に、正圧による圧力作用を受ける。この結果、当該水は、水抜き通路316の方向に押圧され続ける。かくして、当該水は、漏れなく水抜き通路316から排水される。よって、当該水が、下部セクション1b(機械室14(電装ユニット6))の内部に浸入することは無い。
This ensures that the stored water (rain water) is always subjected to a positive pressure action during exhaust heat. As a result, the water continues to be pressed in the direction of the drain passage 316. Thus, the water is drained from the drain passage 316 without leakage. Therefore, the water does not enter the lower section 1b (machine room 14 (electrical unit 6)).
なお、上記実施形態にて、電源ボックス70は、機械室14の底板上に配置されている旨説明してが、底板を設けずに、機械室14内に配置されたメインフレーム7に対してメインボックス72を直接固定させてもよい。
In the above-described embodiment, it is described that the power supply box 70 is disposed on the bottom plate of the machine room 14, but the main box 7 disposed in the machine room 14 without the bottom plate is provided. The main box 72 may be fixed directly.
本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。
Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.
1a…上部セクション、1b…下部セクション、2…第1のセクション(筐体)、14…機械室、20,21,23a,23b,24,25,26…冷凍サイクル構成部品(圧縮機、四方弁、膨張弁、レシーバ、水熱交換器、気液分離器)、22…第2のセクション(空気熱交換部)、43,201,202…段差部(第1の段差部、第2の段差部)、46a,46b,46c,46d…水配管(第1ないし第4の水配管)、48,51…接続端部(第1の接続端部、第2の接続端部)、60…ドレンパン、70…電装ボックス、71…ファン装置、72…メインボックス、81…ダクトユニット、300…排熱ファンユニット、305,306…仕切ベース、310…上部ダクト、311…下部ダクト、310a…上部開口、311a…下部開口、306a…ベース開口、306b…段部、314…緩衝材、315…水受け棚(水受け機構)、316…水抜き通路(水抜き機構)。
DESCRIPTION OF SYMBOLS 1a ... Upper section, 1b ... Lower section, 2 ... First section (housing), 14 ... Machine room, 20, 21, 23a, 23b, 24, 25, 26 ... Refrigerating cycle components (compressor, four-way valve) , Expansion valve, receiver, water heat exchanger, gas-liquid separator), 22 ... second section (air heat exchange part), 43, 201, 202 ... step part (first step part, second step part) ), 46a, 46b, 46c, 46d ... water piping (first to fourth water piping), 48, 51 ... connection end (first connection end, second connection end), 60 ... drain pan, 70: Electrical box, 71: Fan device, 72: Main box, 81: Duct unit, 300: Exhaust heat fan unit, 305,306 ... Partition base, 310 ... Upper duct, 311 ... Lower duct, 310a ... Upper opening, 311a …beneath Opening, 306a ... Base opening, 306b ... Step part, 314 ... Buffer material, 315 ... Water receiving shelf (water receiving mechanism), 316 ... Water draining passage (water draining mechanism).
Claims (8)
- 上部に熱交換室を備え、下部に冷凍サイクルの圧縮機を収容する機械室を備えた冷凍サイクル装置において、
前記機械室に配置され、前記圧縮機を含む、冷凍サイクル動作を制御する電装ボックスと、
前記電装ボックスの内部に空気の流れを発生可能な排熱ファンユニットと、
前記排熱ファンユニットを収容し、前記空気の流れによって、前記電装ボックスの内部の空気を前記熱交換室へ排出させるダクトユニットと、を備えている冷凍サイクル装置。 In the refrigeration cycle apparatus having a heat exchange chamber in the upper part and a machine room in which the compressor of the refrigeration cycle is accommodated in the lower part,
An electrical box disposed in the machine room and including the compressor, for controlling a refrigeration cycle operation;
An exhaust heat fan unit capable of generating an air flow inside the electrical box;
A refrigeration cycle apparatus comprising: a duct unit that houses the exhaust heat fan unit and discharges air inside the electrical box to the heat exchange chamber by the air flow. - 前記ダクトユニットは、前記電装ボックスの内部と、前記熱交換室とを連通可能に構成されている請求項1に記載の冷凍サイクル装置。 The refrigeration cycle apparatus according to claim 1, wherein the duct unit is configured to allow communication between the interior of the electrical box and the heat exchange chamber.
- 前記電装ボックスの内部の熱気が放出される排気通路を、更に有し、
前記ダクトユニットは、前記電装ボックスの内部と、前記排気通路とを連通可能に構成されている請求項1に記載の冷凍サイクル装置。 An exhaust passage through which hot air inside the electrical box is released,
The refrigeration cycle apparatus according to claim 1, wherein the duct unit is configured to be able to communicate the interior of the electrical box with the exhaust passage. - 前記ダクトユニットには、前記排熱ファンユニットに対向させて構成された吹き出し部が設けられ、
前記吹き出し部を覆うように配置されたカバーを、更に有し、
前記カバーは、その中央部分から両側に向かって下り勾配を有した輪郭に構成されている請求項1に記載の冷凍サイクル装置。 The duct unit is provided with a blowing portion configured to face the exhaust heat fan unit,
A cover disposed to cover the blowing portion;
The refrigeration cycle apparatus according to claim 1, wherein the cover is configured in a contour having a downward slope from the central portion toward both sides. - 前記カバーの周囲に設けられた整流板を、更に有し、
前記吹き出し部を通って前記カバーの両側から流出した空気は、前記整流板によって、流動方向が制限される請求項4に記載の冷凍サイクル装置。 A current plate provided around the cover;
5. The refrigeration cycle apparatus according to claim 4, wherein a flow direction of the air flowing out from both sides of the cover through the blowing portion is restricted by the rectifying plate. - 前記電装ボックスを支持する筐体と、
前記筐体の上方に配置された空気熱交換部と、を更に有し、
前記吹き出し部を通って前記カバーの両側から流出した熱気は、前記整流板によって、前記空気熱交換部を回避する方向に、流動方向が制限される請求項5に記載の冷凍サイクル装置。 A housing that supports the electrical box;
An air heat exchange unit disposed above the housing,
The refrigeration cycle apparatus according to claim 5, wherein the flow direction of hot air flowing out from both sides of the cover through the blowing portion is restricted by the rectifying plate in a direction to avoid the air heat exchange portion. - 前記排熱ファンユニットを、前記ダクトユニットに対して、引き出したり、挿入したりすることが可能な出し入れ機構を、更に有している請求項1に記載の冷凍サイクル装置。 The refrigeration cycle apparatus according to claim 1, further comprising a loading / unloading mechanism capable of pulling out and inserting the exhaust heat fan unit with respect to the duct unit.
- 前記出し入れ機構は、
前記排熱ファンユニットを搭載可能なスライダと、
前記スライダに対向させて配置されたガイドレールと、
前記スライダに連結された操作パネルと、
前記操作パネルに設けられ、作業員が手指で掴むことが可能な把手部と、を備えている請求項7に記載の冷凍サイクル装置。 The loading / unloading mechanism is
A slider on which the exhaust heat fan unit can be mounted;
A guide rail disposed to face the slider;
An operation panel coupled to the slider;
The refrigeration cycle apparatus according to claim 7, further comprising: a grip portion that is provided on the operation panel and can be gripped by a worker with fingers.
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JP7407507B2 (en) * | 2018-10-26 | 2024-01-04 | 三菱重工サーマルシステムズ株式会社 | Electrical component cooling equipment, chilling units with it, and outdoor units of air conditioners |
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