WO2018147365A1 - Heat exchange unit and heat pump unit - Google Patents

Heat exchange unit and heat pump unit Download PDF

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Publication number
WO2018147365A1
WO2018147365A1 PCT/JP2018/004382 JP2018004382W WO2018147365A1 WO 2018147365 A1 WO2018147365 A1 WO 2018147365A1 JP 2018004382 W JP2018004382 W JP 2018004382W WO 2018147365 A1 WO2018147365 A1 WO 2018147365A1
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WO
WIPO (PCT)
Prior art keywords
panel
heat exchanger
heat
drain
pair
Prior art date
Application number
PCT/JP2018/004382
Other languages
French (fr)
Japanese (ja)
Inventor
由記 光元
Original Assignee
株式会社前川製作所
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Filing date
Publication date
Application filed by 株式会社前川製作所 filed Critical 株式会社前川製作所
Publication of WO2018147365A1 publication Critical patent/WO2018147365A1/en

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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
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • 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
    • F24F1/16—Arrangement or mounting thereof
    • 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
    • F24F1/36—Drip trays for outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • 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
    • F25B39/00—Evaporators; Condensers
    • 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
    • F25B41/00—Fluid-circulation arrangements

Definitions

  • This disclosure relates to a heat exchange unit and a heat pump unit.
  • hot water at 90 ° C. or higher can be supplied by using CO 2 as a refrigerant in a hot water supply unit including equipment constituting a heat pump cycle and making CO 2 in a supercritical state on the outlet side of the compressor.
  • a hot water supply unit an air heat exchanger is used as an evaporator that evaporates a refrigerant such as CO 2 using air as a heat source.
  • a pair of air heat exchangers provided along the vertical direction are arranged to face each other, and a fan that allows air to pass through the pair of air heat exchangers is located above the pair of air heat exchangers.
  • An arranged heat exchange unit is disclosed.
  • Patent Document 1 In a heat exchange unit in which a pair of air heat exchangers provided in the vertical direction as in the heat exchange unit described in Patent Document 1 described above are arranged to face each other, generally, a pair of air heat exchangers An opening for air circulation is provided above the region sandwiched between the two, and a drain pan for receiving drain condensed by the air heat exchanger is provided below the region.
  • a pair of air heat exchangers An opening for air circulation is provided above the region sandwiched between the two, and a drain pan for receiving drain condensed by the air heat exchanger is provided below the region.
  • Patent Document 1 described above does not disclose any configuration for preventing the drainage port from being clogged with foreign matter.
  • At least one embodiment aims at providing the heat exchange unit and heat pump unit which can prevent clogging of the drain outlet of a drain pan by a foreign material in view of the above-mentioned subject.
  • the heat exchange unit is: A panel heat exchanger provided along the vertical direction; A drain pan provided below the panel heat exchanger and having a drain port; A clogging preventing member that is disposed in the drain port and prevents foreign matter other than the drain generated in the panel heat exchanger from entering the drain port; Is provided.
  • the clogging preventing member that prevents foreign matter other than the drain generated in the panel heat exchanger from entering the drain port is disposed at the drain port. It does not invade and can prevent clogging of the drain port with foreign matter.
  • the clogging prevention member is A mesh-like base through which the drain can pass; A plurality of needles provided on the base and projecting upward from the base; Have According to the configuration of (2) above, the entry of foreign matter from above can be prevented at the upper end of the needle without hindering the flow of drain, so the effect of preventing clogging of the drain port is high.
  • the plurality of needles are provided at the base, the plurality of needles are integrated, and the clogging prevention member can be easily installed.
  • the plurality of needles are spaced apart from each other and have the same height. According to the configuration of (3) above, the plurality of needles are spaced apart from each other and have the same height, so that the entry of foreign matter from above is effectively prevented at the upper end of the needle. it can.
  • the base portion of the clogging prevention member has a flat bottom surface, and the plurality of needles are orthogonal to the bottom surface. It is provided along.
  • the base has a flat bottom surface, and the plurality of needles are provided along the direction orthogonal to the bottom surface. Can be effectively blocked.
  • the base has a flat bottom surface, the arranged clogging preventing member is less likely to fall and is stable.
  • the plurality of needles are provided on the base portion having a flat bottom surface, the clogging prevention member can be easily installed.
  • a heat exchange medium flow path is formed inside the panel heat exchanger, and air is the panel heat. It is configured to pass through the front and back surfaces of the exchanger.
  • the heat exchange unit having the above configuration foreign matter does not enter the drain port, and the drain port can be prevented from being clogged with foreign matter.
  • the heat exchange medium flow path is formed inside the panel heat exchanger and the air can pass through the front and back surfaces of the panel heat exchanger, the generated drain can be reliably discharged to the drain pan. .
  • the drain pan has a groove extending along the longitudinal direction of the panel heat exchanger,
  • the clogging preventing member extends along the longitudinal direction in the groove. According to the configuration of (6) above, since the groove extends along the longitudinal direction of the panel heat exchanger, the drain generated in the panel heat exchanger can be collected effectively. Moreover, since the clogging preventing member extends along the longitudinal direction in the groove, the foreign matter flowing in the groove together with the drain can be effectively prevented by the clogging preventing member in the groove.
  • the panel heat exchanger in the configuration of the above (6), includes a pair of the panel heat exchangers arranged so that the interval is narrowed from the upper side to the lower side.
  • the groove extends along the longitudinal direction of the pair of panel heat exchangers in a region between the pair of panel heat exchangers.
  • the panel-like heat exchanger includes a pair of the panel-like heat exchangers arranged so that the interval is narrowed from the upper side to the lower side,
  • the drain pan is disposed in a lower portion of the pair of panel heat exchangers and a region between the pair of panel heat exchangers.
  • the heat pump unit is: A box-shaped casing; A heat exchanging unit provided in an upper region in the box-shaped casing, and having the structure according to any one of the above (1) to (8); A heat pump cycle constituent device provided in a lower region in the box-shaped casing, in which the panel heat exchanger is incorporated as an evaporator; Is provided.
  • the clogging preventing member that prevents foreign matter other than the drain generated in the panel heat exchanger from entering the drain port is disposed in the drain port, the foreign matter is placed in the drain port. It does not invade and can prevent clogging of the drain port with foreign matter.
  • the clogging of the drain port due to foreign matter can be prevented.
  • FIG. It is a perspective view of the appearance of a heat pump unit concerning one embodiment, (a) is a perspective view which looked at a heat pump unit concerning one embodiment from the front, and (b) is a heat pump unit concerning one embodiment from back.
  • FIG. It is a perspective view which shows typically the internal structure of the heat pump unit which concerns on one Embodiment. It is a figure showing the whole heat pump unit composition concerning one embodiment.
  • an expression indicating that things such as “identical”, “equal”, and “homogeneous” are in an equal state not only represents an exactly equal state, but also has a tolerance or a difference that can provide the same function. It also represents the existing state.
  • expressions representing shapes such as quadrangular shapes and cylindrical shapes represent not only geometrically strict shapes such as quadrangular shapes and cylindrical shapes, but also irregularities and chamfers as long as the same effects can be obtained. A shape including a part or the like is also expressed.
  • the expressions “comprising”, “comprising”, “comprising”, “including”, or “having” one constituent element are not exclusive expressions for excluding the existence of other constituent elements.
  • FIG. 1 is a perspective view of an appearance of a heat pump unit according to an embodiment
  • FIG. 1A is a perspective view of the heat pump unit according to the embodiment as viewed from the front
  • FIG. It is the perspective view which looked at the heat pump unit which concerns on a form from back
  • FIG. 2 is a perspective view schematically showing the internal structure of the heat pump unit according to the embodiment.
  • the front-rear direction and the left-right direction of the heat pump unit are defined as shown in each drawing.
  • the vertical direction of the heat pump unit is the same as the vertical direction on the paper surface of each drawing.
  • the front surface of the heat pump unit is also referred to as a front surface
  • the rear surface is also referred to as a back surface.
  • a heat pump unit 50 includes a box-shaped casing 100 having a substantially rectangular parallelepiped shape as shown in FIG. 1 and a heat pump cycle component device 52 arranged inside the box-shaped casing 100 as shown in FIG. Prepare.
  • the box-shaped casing 100 is provided on an upper portion of a substantially rectangular base plate 51. That is, four support columns 101 are erected at the four corners of the base plate 51.
  • An air outlet 112 described later is provided on the upper surface of the box-shaped casing 100, and the periphery of the air outlet 112 is covered with the top plate 102.
  • the box-shaped casing 100 has four side surfaces, that is, a front surface (front surface) 100a, a rear surface (back surface) 100b, a right side surface 100c, and a left side surface 100d.
  • An air intake port 111 which will be described later, is formed on the front surface 100a and the back surface 100b.
  • the front surface 100a, the back surface 100b, the right side surface 100c, and the left side surface 100d are covered with a panel plate except for the air intake port 111.
  • a panel plate covering the lower area of the back surface 100b is referred to as a back lower panel plate 103.
  • the lower back panel plate 103 is attached so that it can be easily attached and detached for maintenance of the drain pan 10 described later.
  • An opening 104 is provided in the panel plate covering the area on the right side of the front surface 100a.
  • the opening 104 is an opening for operating a touch panel type operation panel (not shown) for operating the heat pump unit 50.
  • FIG. 3 is a diagram illustrating an overall configuration of the heat pump unit 50 according to an embodiment.
  • the heat pump cycle component device 52 includes a compressor 56, a gas cooler 58, an internal heat exchanger 64, and a panel heat exchanger 36.
  • the refrigerant (for example, CO 2 ) compressed by the compressor 56 is supplied to the gas cooler 58 via the refrigerant circulation path 54 and is cooled by the cooling water flowing through the cooling water path 60 by the gas cooler 58.
  • the cooling water channel 60 is provided with a pump 62 that sends the cooling water to the gas cooler 58.
  • the refrigerant cooled by the gas cooler 58 is cooled by exchanging heat with the refrigerant sent from the panel heat exchanger 36 by the internal heat exchanger 64 and then depressurized via the expansion valve 66. Thereafter, the refrigerant is heated by the panel heat.
  • the exchanger 36 vaporizes air as a heat source. That is, the panel-shaped heat exchanger 36 has a heat exchange medium flow path, that is, a refrigerant flow path formed therein, and is configured to allow air to pass through the front and back surfaces of the panel-shaped heat exchanger 36. It is incorporated in the heat pump cycle component device 52.
  • the vaporized refrigerant is heated by exchanging heat with the refrigerant sent from the gas cooler 58 by the internal heat exchanger 64 and then sent again to the compressor 56 to be compressed.
  • a bypass path 68 that branches from the refrigerant circulation path 54 on the downstream side of the gas cooler 58 and is connected to the refrigerant circulation path 54 on the downstream side of the expansion valve 66 is connected to the refrigerant circulation path 54.
  • a refrigerant tank 70 is provided in the bypass path 68, and electromagnetic valves 72 and 74 are provided on the upstream side and the downstream side of the refrigerant tank 70.
  • a part of the refrigerant in the refrigerant circulation path 54 is stored in the refrigerant tank 70, or the refrigerant stored in the refrigerant tank 70 is returned to the refrigerant circulation path 54, whereby the amount of refrigerant flowing through the refrigerant circulation path 54 can be adjusted.
  • the hot water heated by the gas cooler 58 can be supplied to a customer as a heat source.
  • a pair of panel heat exchangers 36 provided along the vertical direction inside the box-shaped casing 100 are arranged facing each other.
  • a fan 34 that allows air to pass through the pair of panel heat exchangers 36 is disposed above the pair of panel heat exchangers 36.
  • the pair of panel heat exchangers 36 provided along the vertical direction is supported from below by the heat exchanger frame 31 installed on the base plate 51.
  • a fan base 32 for attaching the fan 34 is attached to the upper ends of the pair of panel heat exchangers 36, and the fan 34 is attached to the fan base 32.
  • the fan 34 is provided with a propeller-type blade 34a, and air is blown through the opening 34b of the casing.
  • a heat pump cycle component device 52 such as a compressor 56 and a gas cooler 58 is provided in a lower region inside the box-shaped casing 100.
  • the compressor 56, the gas cooler 58, the refrigerant tank 70, and the like are fixed on the base plate 51.
  • an air intake port 111 is formed in the upper region of the front surface 100 a and the back surface 100 b of the box-shaped casing 100.
  • the pair of panel-like heat exchangers 36 are provided so as to face the two air intake ports 111, and are arranged in a V shape so that the distance between the pair of panel-like heat exchangers 36 decreases toward the bottom.
  • Each of the pair of panel heat exchangers 36 is disposed such that the longitudinal direction thereof is along the left-right direction of the heat pump unit 50.
  • an air flow a (see FIG. 2) that flows from the air intake ports 111 on the front surface 100a and the back surface 100b, passes through the pair of panel heat exchangers 36, and reaches the air outlet 112 is formed.
  • FIG. 4 is a perspective view showing the appearance of the drain pan 10.
  • the drain pan 10 is a dish-shaped member for collecting drain that is generated when moisture in the air is condensed in the pair of panel heat exchangers 36.
  • the drain pan 10 has a front bottom plate 11, a rear bottom plate 12, and a groove 13 extending between the front and rear bottom plates 11, 12 in the left-right direction, that is, in the longitudinal direction of the panel heat exchanger 36.
  • the bottom plates 11 and 12 have a slope that descends toward the groove 13.
  • the bottom surface of the groove 13 has a downward slope that is downwardly inclined, and a drain port 14 for draining is provided near the right end of the bottom surface.
  • a short pipe 15 extending downward is connected to the drain port 14, and one end of a hose (not shown) is connected to the lower end of the short pipe 15. The other end of the hose (not shown) is connected to a drain discharge nozzle provided on the back surface 100b.
  • the drain pan 10 is provided with a maintenance inspection port 16 in the vicinity of the drain port 14.
  • the inspection port 16 is opened, for example, on the side surface on the back side of the groove 13 and is covered with a cover (not shown) that can be attached and detached so that the drain does not leak.
  • the drain generated in the pair of panel heat exchangers 36 is collected in the drain pan 10.
  • the heat pump unit 50 is sandwiched between the inside of the box-shaped casing 100, that is, the pair of panel heat exchangers 36, through the air outlet 112 and the opening 34b of the casing of the fan 34.
  • Rainwater enters the area.
  • This invading rainwater is also collected in the drain pan 10. That is, the drain generated in the pair of panel heat exchangers 36 and the rainwater entering the heat pump unit 50 flow down to the bottom plates 11 and 12 of the drain pan 10 and flow into the grooves 13.
  • Drain and rainwater flowing into the groove 13 flows in the groove 13 toward the drain port 14 on the right end side of the groove 13, and drains from the back surface 100 b through the short tube 15 and a hose (not shown). Is discharged from the heat nozzle to the outside of the heat pump unit 50.
  • the air outlet 112 and the opening 34b of the casing of the fan 34 are provided above the region sandwiched between the pair of panel heat exchangers 36.
  • foreign matter hereinafter simply referred to as foreign matter
  • the heat pump unit 50 is set outdoors, there is a high risk that foreign matter will enter the box-shaped casing 100 through the air outlet 112 and the opening 34b.
  • Examples of the foreign matter that enters the inside of the box-shaped casing 100 include tree leaves.
  • the foreign matter that has entered the inside of the box-shaped casing 100 falls directly on the drain port 14 or reaches the drain port 14 by flowing down the bottom plates 11 and 12 and the groove 13 together with the drain.
  • the foreign matter that has reached the drain port 14 may cover the drain port 14 or may flow into the short pipe 15 or a hose (not shown) and become clogged inside, thereby hindering drainage.
  • FIG. 5 is a perspective view showing a leaf fence 20 according to an embodiment installed in the drain pan 10 and the drain port 14, and FIG. 6 is a perspective view of the leaf fence 20 according to the embodiment.
  • the heat exchange unit 30 of one embodiment includes a panel heat exchanger 36 provided along the vertical direction, a drain pan 10 provided below the panel heat exchanger 36 and having a drain port 14, and a drain.
  • a leaf fence 20 that is a clogging prevention member that is disposed at the opening 14 and prevents foreign matter other than the drain generated by the panel heat exchanger 36 from entering the drain opening 14 is provided.
  • the heat exchange unit 30 of one embodiment is provided in the upper region in the box-shaped casing 100. In the heat exchange unit 30 of one embodiment, since the leaf fence 20 that prevents foreign matter other than the drain generated in the panel heat exchanger 36 from entering the drain port 14 is disposed at the drain port 14, Does not enter the drain port 14 and can prevent the drain port 14 from being clogged with foreign matter.
  • the leaf fence 20 of one Embodiment includes a mesh-like base portion 21 through which drain can pass and a plurality of needles 22 provided on the base portion 21 and projecting upward from the base portion 21.
  • the base 21 has a flat bottom surface 21a, and the plurality of needles 22 are provided along a direction orthogonal to the bottom surface 21a.
  • the plurality of needles 22 are spaced apart from each other and have the same height.
  • the leaf fence 20 of one embodiment is placed on the bottom surface of the groove 13 and covers the drain port 14.
  • the dimension in the front-rear direction is substantially equal to the width of the groove 13, that is, the dimension in the front-rear direction of the groove 13.
  • the dimension of the left-right direction of the leaf fence 20 of one embodiment is the state in which the right end of the leaf fence 20 is in contact with the right side (downstream side) side wall of the groove 13 and the left end of the leaf fence 20 is a drain port. 14 is set to be located on the left side of the left end. Thereby, even if the leaf fence 20 moves to the downstream side of the groove 13 due to the flow of the drain, the base 21 reliably covers the drain port 14, so that foreign matter can be prevented from entering the drain port 14.
  • the horizontal dimension of the leaf fence 20, that is, the dimension along the longitudinal direction of the groove 13 should be set in consideration of the position of the center of gravity of the fence fence 20 so as not to fall in the horizontal direction in the groove 13. Is desirable.
  • foreign matter from above is blocked by the upper ends of the plurality of needles 22, and foreign matter flowing through the groove 13 together with drains is lined up in the front-rear direction on the left side, that is, upstream of the groove 13. Blocked by the side surfaces of the plurality of needles 22.
  • foreign matter that has fallen without being blocked by the upper end of the needle 22 is blocked by the mesh-shaped base 21.
  • the foreign matter that has passed between the needles 22 arranged on the upstream side of the groove 13 is the side surface of the needle 22 on the downstream side of the needles 22 or the mesh-like base 21. Is blocked.
  • the needle 22 and the needle 22 are separated from each other, and the base 21 is also mesh-shaped, so that the drain flows to the drain port 14 without being inhibited by the leaf fence 20.
  • foreign substances accumulated on the top and side surfaces of the leaf fence 20 can be removed as follows. First, the lower back panel 103 of the heat pump unit 50 shown in FIG. Accordingly, the inspection port 16 provided on the back side of the groove 13 of the drain pan 10 can be accessed from the back surface 100 b of the heat pump unit 50. Next, the inspection port 16 can be opened by removing a lid (not shown) that covers the inspection port 16, and the accumulated foreign matter can be removed or the leaf fence 20 can be removed.
  • a commercially available member for avoiding pigeons may be used as the leaf fence 20. Thereby, the leaf fence 20 can be obtained at low cost.
  • the leaf fence 20 includes a mesh-like base portion 21 through which drain can pass and a plurality of needles 22 provided on the base portion 21 and projecting upward from the base portion 21.
  • the plurality of needles 22 are spaced apart from each other and have an equivalent height. Thereby, the entry of foreign matter from above can be effectively prevented at the upper end of the needle 22.
  • base 21 of leaf fence 20 has flat bottom 21a, and a plurality of needles 22 are provided along the direction orthogonal to bottom 21a. Thereby, the entry of foreign matter from above can be effectively prevented at the upper end of the needle 22. Moreover, since the base part 21 has the flat bottom face 21a, the arranged leaf fence 20 becomes difficult to fall down and is stabilized. Moreover, since the several needle
  • a refrigerant flow path is formed inside the panel heat exchanger 36, and air can pass through the front and back surfaces of the panel heat exchanger 36.
  • a foreign material does not penetrate
  • the refrigerant flow path is formed inside the panel heat exchanger 36 and the air can pass through the front and back surfaces of the panel heat exchanger. Therefore, the generated drain is transferred to the drain pan 10. Can be discharged reliably.
  • the drain pan 10 has the groove 13 that extends along the longitudinal direction of the panel heat exchanger 36.
  • the leaf fence 20 extends along the longitudinal direction of the panel heat exchanger 36 in the groove 13. Since the groove 13 extends along the longitudinal direction of the panel heat exchanger 36, the drain generated by the panel heat exchanger 36 can be collected effectively. Moreover, since the leaf fence 20 extends along the longitudinal direction of the panel heat exchanger 36 in the groove 13, the foreign material flowing in the groove 13 together with the drain is caused by the leaf fence 20 in the groove 13. Can be effectively blocked.
  • the panel-shaped heat exchanger 36 includes a pair of panel-shaped heat exchangers 36 that are arranged so that the distance between the panel-shaped heat exchanger 36 decreases from the top to the bottom.
  • the drain pan 10 is disposed in a region between the lower part of the pair of panel heat exchangers 36 and the pair of panel heat exchangers 36.
  • drain pan 10 is arrange
  • the groove 13 extends in the region between the pair of panel heat exchangers 36 along the longitudinal direction of the pair of panel heat exchangers 36.
  • a heat pump unit 50 is provided in a box-shaped casing 100, the above-described heat exchange unit 30 provided in an upper region in the box-shaped casing 100, and a lower region in the box-shaped casing 100.
  • the heat exchanger 36 includes a heat pump cycle component 52 in which the heat exchanger 36 is incorporated as an evaporator.
  • the leaf fence 20 that prevents foreign matter other than the drain generated by the panel heat exchanger 36 from entering the drain port 14 is disposed at the drain port 14, Does not enter the drain port 14 and can prevent the drain port 14 from being clogged with foreign matter. Moreover, since the leaf fence 20 prevents foreign matter from entering the drain port 14, foreign matter can be prevented from flowing into the short pipe 15 or a hose (not shown) and being clogged inside. Thereby, it is possible to prevent the discharge of the drain due to the foreign matter, and to reduce the maintenance frequency such as removing the foreign matter, thereby reducing the maintenance cost.
  • the leaf fence 20 has a plurality of needles 22 as shown in FIG.
  • the upper end of the needle 22 may not be sharp.
  • the leaf fence 20 may have a plurality of rod-shaped parts whose top ends are not sharp instead of the needles 22 whose top ends are sharp.
  • the leaf fence 20 has a plurality of needles 22 arranged in a straight line along the front-rear direction and the left-right direction.
  • the plurality of needles 22 are not necessarily arranged in a straight line along the front-rear direction and the left-right direction, and the plurality of needles 22 are arranged so that the upper ends of the needles 22 are appropriately separated from each other in the front-rear direction and the left-right direction. Needles 22 need only be arranged, and the intervals are not necessarily equal.
  • the heights of the upper ends of the plurality of needles 22 are substantially equal, but the heights of the upper ends of the plurality of needles 22 may be different from each other.
  • the needle 22 is disposed at the intersection of the portion extending in the front-rear direction and the portion extending in the left-right direction in the base portion 21.
  • the needle 22 may be disposed at a portion other than the intersecting portion in the base portion 21.
  • the leaf fence 20 has a mesh-like base portion 21 and a plurality of needles 22 protruding upward from the base portion 21.
  • the upper surface of the leaf fence 20, that is, the upper ends of the plurality of needles 22 may be connected to the upper ends of the adjacent needles 22 to form the same shape as the mesh-shaped base 21.
  • a rectangular parallelepiped formed so that at least the top surface, the bottom surface, and the left side (upstream side) side surface are formed in a mesh shape so as not to disturb the flow of the drain.
  • a member having a shape may be used as a clogging prevention member.
  • the base 21 of the leaf fence 20 has a flat bottom surface 21a, and the plurality of needles 22 are provided along a direction orthogonal to the bottom surface 21a.
  • the bottom surface 21a may have a step, or the bottom surface 21a may be curved.
  • the needle 22 does not necessarily have to be provided along the direction orthogonal to the bottom surface 21a.
  • the needle 22 may extend obliquely upward or may have a curved portion. Good.
  • the drain pan 10 has the groove 13 extending along the longitudinal direction of the panel heat exchanger 36.
  • the groove 13 may extend along a direction different from the longitudinal direction of the panel heat exchanger 36.
  • the leaf fence 20 extended along the longitudinal direction of the panel-shaped heat exchanger 36 in the groove
  • the pair of panel heat exchangers 36 are arranged in a V shape so that the distance between the pair of panel heat exchangers 36 decreases toward the bottom.
  • the pair of panel-like heat exchangers 36 may be arranged, for example, so that the distance between the pair of panel-like heat exchangers 36 is equal between the upper side and the lower side. It may be arranged in a letter shape.
  • the heat pump unit 50 including the devices that configure the heat pump cycle has been described.
  • the above-described content of the heat pump unit 50 can be applied to a refrigeration unit including the devices that configure the refrigeration cycle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

This heat exchange unit is provided with: a panel-shape heat exchanger provided in the vertical direction; a drain pan provided below the panel-shaped heat exchanger and having a drain port; and a clogging prevention member arranged in the drain port to prevent incursion into the drain port of foreign matter other than drainage generated in the panel-shaped heat exchanger.

Description

熱交換ユニット及びヒートポンプユニットHeat exchange unit and heat pump unit
　本開示は、熱交換ユニット及びヒートポンプユニットに関する。 This disclosure relates to a heat exchange unit and a heat pump unit.
　ヒートポンプサイクルを構成する機器を備える給湯ユニットにおいて、ＣＯ２を冷媒として用い、圧縮機の出口側でＣＯ２を超臨界状態とすることで、９０℃以上の湯を供給できることが知られている。かかる給湯ユニットでは、空気を熱源としてＣＯ２などの冷媒を蒸発させる蒸発器として空気熱交換器が用いられる。
　特許文献１には、上下方向に沿って設けられた一対の空気熱交換器を互いに向かい合わせて配置し、一対の空気熱交換器に空気を通過させるファンを一対の空気熱交換器の上方に配置した熱交換ユニットが開示されている。 It is known that hot water at 90 ° C. or higher can be supplied by using CO 2 as a refrigerant in a hot water supply unit including equipment constituting a heat pump cycle and making CO 2 in a supercritical state on the outlet side of the compressor. In such a hot water supply unit, an air heat exchanger is used as an evaporator that evaporates a refrigerant such as CO 2 using air as a heat source.
In Patent Document 1, a pair of air heat exchangers provided along the vertical direction are arranged to face each other, and a fan that allows air to pass through the pair of air heat exchangers is located above the pair of air heat exchangers. An arranged heat exchange unit is disclosed.
特開２００７－１６３０１７号公報JP 2007-163017 A
　上述した特許文献１に記載の熱交換ユニットのように上下方向に沿って設けられた一対の空気熱交換器を互いに向かい合わせて配置した熱交換ユニットでは、一般的に、一対の空気熱交換器で挟まれた領域の上方に空気の流通のための開口が設けられ、該領域の下方に空気熱交換器で結露したドレンを受けるドレンパンが設けられる。この熱交換ユニットを屋外に設置した場合、該開口から例えば落ち葉などの異物が熱交換ユニット内に侵入して、ドレンパンの排水口を詰まらせるおそれがある。
　しかし、上述した特許文献１には、異物による排水口の詰まりを防止するための構成については何ら開示されていない。 In a heat exchange unit in which a pair of air heat exchangers provided in the vertical direction as in the heat exchange unit described in Patent Document 1 described above are arranged to face each other, generally, a pair of air heat exchangers An opening for air circulation is provided above the region sandwiched between the two, and a drain pan for receiving drain condensed by the air heat exchanger is provided below the region. When this heat exchange unit is installed outdoors, foreign matter such as fallen leaves may enter the heat exchange unit from the opening and clog the drain outlet of the drain pan.
However, Patent Document 1 described above does not disclose any configuration for preventing the drainage port from being clogged with foreign matter.
　少なくとも一実施形態は、上記課題に鑑み、異物によるドレンパンの排水口の詰まりを防止できる熱交換ユニット及びヒートポンプユニットを提供することを目的とする。 At least one embodiment aims at providing the heat exchange unit and heat pump unit which can prevent clogging of the drain outlet of a drain pan by a foreign material in view of the above-mentioned subject.
　（１）少なくとも一実施形態に係る熱交換ユニットは、
　上下方向に沿って設けられたパネル状熱交換器と、
　前記パネル状熱交換器の下方に設けられ、ドレン口を有するドレンパンと、
　前記ドレン口に配置され、前記パネル状熱交換器で発生するドレン以外の異物が前記ドレン口に侵入するのを阻止する詰まり防止部材と、
　を備える。 (1) The heat exchange unit according to at least one embodiment is:
A panel heat exchanger provided along the vertical direction;
A drain pan provided below the panel heat exchanger and having a drain port;
A clogging preventing member that is disposed in the drain port and prevents foreign matter other than the drain generated in the panel heat exchanger from entering the drain port;
Is provided.
　上記（１）の構成によれば、パネル状熱交換器で発生するドレン以外の異物がドレン口に侵入するのを阻止する詰まり防止部材がドレン口に配置されているので、異物がドレン口に侵入せず、異物によるドレン口の詰まりを防止できる。 According to the configuration of (1) above, the clogging preventing member that prevents foreign matter other than the drain generated in the panel heat exchanger from entering the drain port is disposed at the drain port. It does not invade and can prevent clogging of the drain port with foreign matter.
（２）幾つかの実施形態では、上記（１）の構成において、前記詰まり防止部材は、
　前記ドレンが通過可能な網目状の基部と、
　前記基部に設けられ、前記基部から上方へ突出する複数の針と、
　を有する。
　上記（２）の構成によれば、ドレンの流れを阻害することなく上方からの異物の侵入を針の上端で阻止できるので、ドレン口の詰まりを防止する効果が高い。また、複数の針が基部に設けられているので、複数の針が一体化されていて、詰まり防止部材の設置が容易である。 (2) In some embodiments, in the configuration of (1), the clogging prevention member is
A mesh-like base through which the drain can pass;
A plurality of needles provided on the base and projecting upward from the base;
Have
According to the configuration of (2) above, the entry of foreign matter from above can be prevented at the upper end of the needle without hindering the flow of drain, so the effect of preventing clogging of the drain port is high. In addition, since the plurality of needles are provided at the base, the plurality of needles are integrated, and the clogging prevention member can be easily installed.
（３）幾つかの実施形態では、上記（２）の構成において、前記複数の針は、互いに間隔を置いて配置され、かつ同等の高さを有している。
　上記（３）の構成によれば、複数の針は、互いに間隔を置いて配置され、かつ同等の高さを有しているので、上方からの異物の侵入を針の上端で効果的に阻止できる。 (3) In some embodiments, in the configuration of the above (2), the plurality of needles are spaced apart from each other and have the same height.
According to the configuration of (3) above, the plurality of needles are spaced apart from each other and have the same height, so that the entry of foreign matter from above is effectively prevented at the upper end of the needle. it can.
（４）幾つかの実施形態では、上記（２）または（３）の構成において、前記詰まり防止部材の前記基部は平坦な底面を有し、前記複数の針は前記底面に対して直交する方向に沿って設けられている。
　上記（４）の構成によれば、基部は平坦な底面を有し、複数の針は底面に対して直交する方向に沿って設けられているので、上方からの異物の侵入を針の上端で効果的に阻止できる。また、基部が平坦な底面を有するので、配置された詰まり防止部材が転倒しにくくなり、安定する。また、複数の針が平坦な底面を有する基部に設けられているので、詰まり防止部材の設置が容易である。 (4) In some embodiments, in the configuration of (2) or (3), the base portion of the clogging prevention member has a flat bottom surface, and the plurality of needles are orthogonal to the bottom surface. It is provided along.
According to the configuration of (4) above, the base has a flat bottom surface, and the plurality of needles are provided along the direction orthogonal to the bottom surface. Can be effectively blocked. Moreover, since the base has a flat bottom surface, the arranged clogging preventing member is less likely to fall and is stable. In addition, since the plurality of needles are provided on the base portion having a flat bottom surface, the clogging prevention member can be easily installed.
（５）幾つかの実施形態では、上記（１）乃至（４）の何れかの構成において、前記パネル状熱交換器の内部に熱交換媒体流路が形成され、かつ空気が前記パネル状熱交換器の表裏面を通過可能に構成されている。
　上記（５）の構成によれば、上記構成の熱交換ユニットにおいて、異物がドレン口に侵入せず、異物によるドレン口の詰まりを防止できる。また、パネル状熱交換器の内部に熱交換媒体流路が形成され、かつ空気がパネル状熱交換器の表裏面を通過可能に構成されているので、発生したドレンをドレンパンへ確実に排出できる。 (5) In some embodiments, in any one of the above configurations (1) to (4), a heat exchange medium flow path is formed inside the panel heat exchanger, and air is the panel heat. It is configured to pass through the front and back surfaces of the exchanger.
According to the configuration of (5) above, in the heat exchange unit having the above configuration, foreign matter does not enter the drain port, and the drain port can be prevented from being clogged with foreign matter. Moreover, since the heat exchange medium flow path is formed inside the panel heat exchanger and the air can pass through the front and back surfaces of the panel heat exchanger, the generated drain can be reliably discharged to the drain pan. .
（６）幾つかの実施形態では、上記（１）乃至（５）の何れかの構成において、
　前記ドレンパンは前記パネル状熱交換器の長手方向に沿って延在する溝を有し、
　前記詰まり防止部材は前記溝内において前記長手方向に沿って延在している。
　上記（６）の構成によれば、溝がパネル状熱交換器の長手方向に沿って延在するので、パネル状熱交換器で発生したドレンを効果的に集められる。また、詰まり防止部材が溝内において前記長手方向に沿って延在しているので、ドレンとともに溝内を流れてくる異物を溝内の詰まり防止部材によって効果的に阻止できる。 (6) In some embodiments, in any one of the above configurations (1) to (5),
The drain pan has a groove extending along the longitudinal direction of the panel heat exchanger,
The clogging preventing member extends along the longitudinal direction in the groove.
According to the configuration of (6) above, since the groove extends along the longitudinal direction of the panel heat exchanger, the drain generated in the panel heat exchanger can be collected effectively. Moreover, since the clogging preventing member extends along the longitudinal direction in the groove, the foreign matter flowing in the groove together with the drain can be effectively prevented by the clogging preventing member in the groove.
（７）幾つかの実施形態では、上記（６）の構成において、前記パネル状熱交換器は、上方から下方へ向けて間隔が狭まるように配置された一対の前記パネル状熱交換器を含み、前記溝は前記一対の前記パネル状熱交換器の間の領域に前記一対の前記パネル状熱交換器の前記長手方向に沿って延在する。
　上記（７）の構成によれば、上記構成の熱交換ユニットにおいて、異物がドレン口に侵入せず、異物によるドレン口の詰まりを防止できる。また、溝が一対のパネル状熱交換器の間の領域にパネル状熱交換器の長手方向に沿って延在するので、パネル状熱交換器で発生したドレンを効果的に集められる。 (7) In some embodiments, in the configuration of the above (6), the panel heat exchanger includes a pair of the panel heat exchangers arranged so that the interval is narrowed from the upper side to the lower side. The groove extends along the longitudinal direction of the pair of panel heat exchangers in a region between the pair of panel heat exchangers.
According to the configuration of (7) above, in the heat exchange unit having the above configuration, foreign matter does not enter the drain port, and the drain port can be prevented from being clogged with foreign material. Moreover, since a groove | channel is extended along the longitudinal direction of a panel-shaped heat exchanger in the area | region between a pair of panel-shaped heat exchangers, the drain which generate | occur | produced with the panel-shaped heat exchanger can be collected effectively.
（８）幾つかの実施形態では、上記（１）乃至（７）の何れかの構成において、
　前記パネル状熱交換器は、上方から下方へ向けて間隔が狭まるように配置された一対の前記パネル状熱交換器を含み、
　前記ドレンパンは、前記一対の前記パネル状熱交換器の下部及び前記一対の前記パネル状熱交換器の間の領域に配置されている。
　上記（８）の構成によれば、上記構成の熱交換ユニットにおいて、異物がドレン口に侵入せず、異物によるドレン口の詰まりを防止できる。また、上方から下方へ向けて間隔が狭まるように配置された一対のパネル状熱交換器の下部及び一対のパネル状熱交換器の間の領域にドレンパンが配置されているので、ドレンパンを小型化できる。 (8) In some embodiments, in any one of the above configurations (1) to (7),
The panel-like heat exchanger includes a pair of the panel-like heat exchangers arranged so that the interval is narrowed from the upper side to the lower side,
The drain pan is disposed in a lower portion of the pair of panel heat exchangers and a region between the pair of panel heat exchangers.
According to the configuration of (8) above, in the heat exchange unit having the above configuration, foreign matter does not enter the drain port, and the drain port can be prevented from being clogged with foreign matter. In addition, since the drain pan is arranged in the lower part of the pair of panel heat exchangers arranged so that the interval narrows from the upper side to the lower side and between the pair of panel heat exchangers, the drain pan is reduced in size. it can.
　（９）少なくとも一実施形態に係るヒートポンプユニットは、
　箱形ケーシングと、
　前記箱形ケーシング内の上部領域に設けられ、上記（１）乃至（８）の何れかの構成の熱交換ユニットと、
　前記箱形ケーシング内の下部領域に設けられ、前記パネル状熱交換器が蒸発器として組み込まれるヒートポンプサイクル構成機器と、
　を備える。 (9) The heat pump unit according to at least one embodiment is:
A box-shaped casing;
A heat exchanging unit provided in an upper region in the box-shaped casing, and having the structure according to any one of the above (1) to (8);
A heat pump cycle constituent device provided in a lower region in the box-shaped casing, in which the panel heat exchanger is incorporated as an evaporator;
Is provided.
　上記（９）の構成によれば、パネル状熱交換器で発生するドレン以外の異物がドレン口に侵入するのを阻止する詰まり防止部材がドレン口に配置されているので、異物がドレン口に侵入せず、異物によるドレン口の詰まりを防止できる。 According to the configuration of (9) above, since the clogging preventing member that prevents foreign matter other than the drain generated in the panel heat exchanger from entering the drain port is disposed in the drain port, the foreign matter is placed in the drain port. It does not invade and can prevent clogging of the drain port with foreign matter.
　少なくとも一実施形態によれば、異物によるドレン口の詰まりを防止できる。 According to at least one embodiment, the clogging of the drain port due to foreign matter can be prevented.
一実施形態に係るヒートポンプユニットの外観の斜視図であり、（ａ）は一実施形態に係るヒートポンプユニットを前方から見た斜視図であり、（ｂ）は一実施形態に係るヒートポンプユニットを後方から見た斜視図である。It is a perspective view of the appearance of a heat pump unit concerning one embodiment, (a) is a perspective view which looked at a heat pump unit concerning one embodiment from the front, and (b) is a heat pump unit concerning one embodiment from back. FIG. 一実施形態に係るヒートポンプユニットの内部構造を模式的に示す斜視図である。It is a perspective view which shows typically the internal structure of the heat pump unit which concerns on one Embodiment. 一実施形態に係るヒートポンプユニットの全体構成を示す図である。It is a figure showing the whole heat pump unit composition concerning one embodiment. ドレンパンの外観を示す斜視図である。It is a perspective view which shows the external appearance of a drain pan. ドレンパン及びドレン口に設置された一実施形態の防葉柵を示す斜視図である。It is a perspective view which shows the leaf fence of one Embodiment installed in the drain pan and the drain port. 一実施形態の防葉柵２０の斜視図である。It is a perspective view of leaf fence 20 of one embodiment.
　以下、添付図面を参照して本発明の幾つかの実施形態について説明する。ただし、実施形態として記載され又は図面に示されている構成部品の寸法、材質、形状、その相対的配置等は、本発明の範囲をこれに限定する趣旨ではなく、単なる説明例にすぎない。
　例えば、「ある方向に」、「ある方向に沿って」、「平行」、「直交」、「中心」、「同心」或いは「同軸」等の相対的或いは絶対的な配置を表す表現は、厳密にそのような配置を表すのみならず、公差、若しくは、同じ機能が得られる程度の角度や距離をもって相対的に変位している状態も表すものとする。
　例えば、「同一」、「等しい」及び「均質」等の物事が等しい状態であることを表す表現は、厳密に等しい状態を表すのみならず、公差、若しくは、同じ機能が得られる程度の差が存在している状態も表すものとする。
　例えば、四角形状や円筒形状等の形状を表す表現は、幾何学的に厳密な意味での四角形状や円筒形状等の形状を表すのみならず、同じ効果が得られる範囲で、凹凸部や面取り部等を含む形状も表すものとする。
　一方、一つの構成要素を「備える」、「具える」、「具備する」、「含む」、又は「有する」という表現は、他の構成要素の存在を除外する排他的な表現ではない。 Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in the embodiments or shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative examples.
For example, expressions expressing relative or absolute arrangements such as “in a certain direction”, “along a certain direction”, “parallel”, “orthogonal”, “center”, “concentric” or “coaxial” are strictly In addition to such an arrangement, it is also possible to represent a state of relative displacement with an angle or a distance such that tolerance or the same function can be obtained.
For example, an expression indicating that things such as “identical”, “equal”, and “homogeneous” are in an equal state not only represents an exactly equal state, but also has a tolerance or a difference that can provide the same function. It also represents the existing state.
For example, expressions representing shapes such as quadrangular shapes and cylindrical shapes represent not only geometrically strict shapes such as quadrangular shapes and cylindrical shapes, but also irregularities and chamfers as long as the same effects can be obtained. A shape including a part or the like is also expressed.
On the other hand, the expressions “comprising”, “comprising”, “comprising”, “including”, or “having” one constituent element are not exclusive expressions for excluding the existence of other constituent elements.
　図１は、一実施形態に係るヒートポンプユニットの外観の斜視図であり、図１（ａ）は一実施形態に係るヒートポンプユニットを前方から見た斜視図であり、図１（ｂ）は一実施形態に係るヒートポンプユニットを後方から見た斜視図である。図２は、一実施形態に係るヒートポンプユニットの内部構造を模式的に示す斜視図である。
　説明の便宜上、ヒートポンプユニットの前後方向及び左右方向を各図に示すように規定する。特に図示はしていないが、ヒートポンプユニットの上下方向は、各図の紙面における上下方向と同じ方向である。なお、ヒートポンプユニットの前面を正面とも呼び、後面を背面とも呼ぶ。 FIG. 1 is a perspective view of an appearance of a heat pump unit according to an embodiment, FIG. 1A is a perspective view of the heat pump unit according to the embodiment as viewed from the front, and FIG. It is the perspective view which looked at the heat pump unit which concerns on a form from back. FIG. 2 is a perspective view schematically showing the internal structure of the heat pump unit according to the embodiment.
For convenience of explanation, the front-rear direction and the left-right direction of the heat pump unit are defined as shown in each drawing. Although not particularly illustrated, the vertical direction of the heat pump unit is the same as the vertical direction on the paper surface of each drawing. In addition, the front surface of the heat pump unit is also referred to as a front surface, and the rear surface is also referred to as a back surface.
　一実施形態に係るヒートポンプユニット５０は、図１に示すように略直方体形状を呈する箱形ケーシング１００と、図２に示すように箱形ケーシング１００の内部に配置されるヒートポンプサイクル構成機器５２とを備える。
　箱形ケーシング１００は、略矩形形状のベースプレート５１の上部に設けられている。すなわち、ベースプレート５１の四隅には、４本の支柱１０１が立設されている。箱形ケーシング１００の上面には、後述する空気流出口１１２が設けられ、空気流出口１１２の周囲が天板１０２で覆われている。 A heat pump unit 50 according to an embodiment includes a box-shaped casing 100 having a substantially rectangular parallelepiped shape as shown in FIG. 1 and a heat pump cycle component device 52 arranged inside the box-shaped casing 100 as shown in FIG. Prepare.
The box-shaped casing 100 is provided on an upper portion of a substantially rectangular base plate 51. That is, four support columns 101 are erected at the four corners of the base plate 51. An air outlet 112 described later is provided on the upper surface of the box-shaped casing 100, and the periphery of the air outlet 112 is covered with the top plate 102.
　箱形ケーシング１００は４つの側面、すなわち、前面（正面）１００ａ、後面（背面）１００ｂ、右側面１００ｃ、及び左側面１００ｄを有する。正面１００ａ及び背面１００ｂには、後述する空気取込み口１１１が形成される。正面１００ａ、背面１００ｂ、右側面１００ｃ、及び左側面１００ｄは、空気取込み口１１１を除いてパネル板で覆われている。 The box-shaped casing 100 has four side surfaces, that is, a front surface (front surface) 100a, a rear surface (back surface) 100b, a right side surface 100c, and a left side surface 100d. An air intake port 111, which will be described later, is formed on the front surface 100a and the back surface 100b. The front surface 100a, the back surface 100b, the right side surface 100c, and the left side surface 100d are covered with a panel plate except for the air intake port 111.
　背面１００ｂの下部の領域を覆うパネル板を背面下側パネル板１０３と呼ぶ。背面下側パネル板１０３は、後述するドレンパン１０のメンテナンス等のために容易に着脱できるように取り付けられている。
　正面１００ａの右側の領域を覆うパネル板には、開口部１０４が設けられている。開口部１０４は、ヒートポンプユニット５０を操作するための、不図示のタッチパネル式の操作パネルを操作するための開口部である。 A panel plate covering the lower area of the back surface 100b is referred to as a back lower panel plate 103. The lower back panel plate 103 is attached so that it can be easily attached and detached for maintenance of the drain pan 10 described later.
An opening 104 is provided in the panel plate covering the area on the right side of the front surface 100a. The opening 104 is an opening for operating a touch panel type operation panel (not shown) for operating the heat pump unit 50.
　図３は、一実施形態に係るヒートポンプユニット５０の全体構成を示す図である。図３に示すように、ヒートポンプサイクル構成機器５２は、圧縮機５６と、ガスクーラ５８と、内部熱交換器６４と、パネル状熱交換器３６とを含む。
　圧縮機５６で圧縮された冷媒（例えばＣＯ２）は冷媒循環路５４を介してガスクーラ５８へ供給され、ガスクーラ５８で冷却水路６０を流れる冷却水によって冷却される。冷却水路６０には冷却水をガスクーラ５８に送るポンプ６２が設けられる。ガスクーラ５８で冷却された冷媒は内部熱交換器６４でパネル状熱交換器３６から送られる冷媒と熱交換して冷却された後、膨張弁６６を経て減圧される、その後、冷媒はパネル状熱交換器３６で空気を熱源として気化する。すなわち、パネル状熱交換器３６は、内部に熱交換媒体流路、すなわち冷媒流路が形成され、かつ空気がパネル状熱交換器３６の表裏面を通過可能に構成されており、蒸発器としてヒートポンプサイクル構成機器５２に組み込まれている。
　気化した冷媒は、内部熱交換器６４でガスクーラ５８から送られる冷媒と熱交換して加熱された後、再び圧縮機５６に送られて圧縮される。 FIG. 3 is a diagram illustrating an overall configuration of the heat pump unit 50 according to an embodiment. As shown in FIG. 3, the heat pump cycle component device 52 includes a compressor 56, a gas cooler 58, an internal heat exchanger 64, and a panel heat exchanger 36.
The refrigerant (for example, CO 2 ) compressed by the compressor 56 is supplied to the gas cooler 58 via the refrigerant circulation path 54 and is cooled by the cooling water flowing through the cooling water path 60 by the gas cooler 58. The cooling water channel 60 is provided with a pump 62 that sends the cooling water to the gas cooler 58. The refrigerant cooled by the gas cooler 58 is cooled by exchanging heat with the refrigerant sent from the panel heat exchanger 36 by the internal heat exchanger 64 and then depressurized via the expansion valve 66. Thereafter, the refrigerant is heated by the panel heat. The exchanger 36 vaporizes air as a heat source. That is, the panel-shaped heat exchanger 36 has a heat exchange medium flow path, that is, a refrigerant flow path formed therein, and is configured to allow air to pass through the front and back surfaces of the panel-shaped heat exchanger 36. It is incorporated in the heat pump cycle component device 52.
The vaporized refrigerant is heated by exchanging heat with the refrigerant sent from the gas cooler 58 by the internal heat exchanger 64 and then sent again to the compressor 56 to be compressed.
　冷媒循環路５４には、ガスクーラ５８の下流側で冷媒循環路５４から分岐し、膨張弁６６の下流側で冷媒循環路５４に接続されるバイパス路６８が接続されている。バイパス路６８には冷媒タンク７０が設けられ、冷媒タンク７０の上流側及び下流側に電磁弁７２及び７４が設けられている。冷媒循環路５４の冷媒の一部を冷媒タンク７０に貯留し、あるいは冷媒タンク７０に貯留された冷媒を冷媒循環路５４に戻すことで、冷媒循環路５４を流れる冷媒量を調整できる。
　一実施形態のヒートポンプユニット５０では、ガスクーラ５８で加熱された温水を熱源として需要先に供給できる。 A bypass path 68 that branches from the refrigerant circulation path 54 on the downstream side of the gas cooler 58 and is connected to the refrigerant circulation path 54 on the downstream side of the expansion valve 66 is connected to the refrigerant circulation path 54. A refrigerant tank 70 is provided in the bypass path 68, and electromagnetic valves 72 and 74 are provided on the upstream side and the downstream side of the refrigerant tank 70. A part of the refrigerant in the refrigerant circulation path 54 is stored in the refrigerant tank 70, or the refrigerant stored in the refrigerant tank 70 is returned to the refrigerant circulation path 54, whereby the amount of refrigerant flowing through the refrigerant circulation path 54 can be adjusted.
In the heat pump unit 50 of one embodiment, the hot water heated by the gas cooler 58 can be supplied to a customer as a heat source.
　一実施形態では、図２に示すように、箱形ケーシング１００の内部に上下方向に沿って設けられた一対のパネル状熱交換器３６が互いに向かい合わせて配置されている。そして、一対のパネル状熱交換器３６に空気を通過させるファン３４が一対のパネル状熱交換器３６の上方に配置されている。具体的には、上下方向に沿って設けられた一対のパネル状熱交換器３６は、ベースプレート５１に設置された熱交換器用架台３１によって下方から支持されている。一対のパネル状熱交換器３６のそれぞれの上端には、ファン３４取付用のファン架台３２が取り付けられており、このファン架台３２にファン３４が取り付けられている。ファン３４にはプロペラ型の羽根３４ａが設けられており、ケーシングの開口３４ｂを介して空気が送風される。 In one embodiment, as shown in FIG. 2, a pair of panel heat exchangers 36 provided along the vertical direction inside the box-shaped casing 100 are arranged facing each other. A fan 34 that allows air to pass through the pair of panel heat exchangers 36 is disposed above the pair of panel heat exchangers 36. Specifically, the pair of panel heat exchangers 36 provided along the vertical direction is supported from below by the heat exchanger frame 31 installed on the base plate 51. A fan base 32 for attaching the fan 34 is attached to the upper ends of the pair of panel heat exchangers 36, and the fan 34 is attached to the fan base 32. The fan 34 is provided with a propeller-type blade 34a, and air is blown through the opening 34b of the casing.
　箱形ケーシング１００の内部の下部領域には、圧縮機５６、ガスクーラ５８等のヒートポンプサイクル構成機器５２が設けられる。圧縮機５６、ガスクーラ５８、及び冷媒タンク７０等は、ベースプレート５１上に固定されている。 A heat pump cycle component device 52 such as a compressor 56 and a gas cooler 58 is provided in a lower region inside the box-shaped casing 100. The compressor 56, the gas cooler 58, the refrigerant tank 70, and the like are fixed on the base plate 51.
　一実施形態では、図１，２に示すように、箱形ケーシング１００の正面１００ａ及び背面１００ｂの上部領域に空気取込み口１１１が形成される。一対のパネル状熱交換器３６は２つの空気取込み口１１１に対面して設けられると共に、一対のパネル状熱交換器３６の間隔が下方に向かうにつれて小さくなるようにＶ字形に配置される。一対のパネル状熱交換器３６のそれぞれは、長手方向がヒートポンプユニット５０の左右方向に沿うように配置される。
　箱形ケーシング１００の内部に、正面１００ａ及び背面１００ｂの空気取込み口１１１から流入し、一対のパネル状熱交換器３６を通り抜け、空気流出口１１２に至る空気流ａ（図２参照）が形成される。 In one embodiment, as shown in FIGS. 1 and 2, an air intake port 111 is formed in the upper region of the front surface 100 a and the back surface 100 b of the box-shaped casing 100. The pair of panel-like heat exchangers 36 are provided so as to face the two air intake ports 111, and are arranged in a V shape so that the distance between the pair of panel-like heat exchangers 36 decreases toward the bottom. Each of the pair of panel heat exchangers 36 is disposed such that the longitudinal direction thereof is along the left-right direction of the heat pump unit 50.
Inside the box-shaped casing 100, an air flow a (see FIG. 2) that flows from the air intake ports 111 on the front surface 100a and the back surface 100b, passes through the pair of panel heat exchangers 36, and reaches the air outlet 112 is formed. The
　一対のパネル状熱交換器３６の下方、すなわち、一対のパネル状熱交換器３６で挟まれた領域の下方には、図４に示すドレンパン１０が設けられている。図４は、ドレンパン１０の外観を示す斜視図である。ドレンパン１０は、一対のパネル状熱交換器３６において空気中の水分が結露することで発生するドレンを集水するための皿状の部材である。ドレンパン１０は、前側の底板１１と、後側の底板１２と、前後の底板１１，１２の間で左右方向、すなわちパネル状熱交換器３６の長手方向に延在する溝１３とを有する。 A drain pan 10 shown in FIG. 4 is provided below the pair of panel heat exchangers 36, that is, below the region sandwiched between the pair of panel heat exchangers 36. FIG. 4 is a perspective view showing the appearance of the drain pan 10. The drain pan 10 is a dish-shaped member for collecting drain that is generated when moisture in the air is condensed in the pair of panel heat exchangers 36. The drain pan 10 has a front bottom plate 11, a rear bottom plate 12, and a groove 13 extending between the front and rear bottom plates 11, 12 in the left-right direction, that is, in the longitudinal direction of the panel heat exchanger 36.
　底板１１，１２は、溝１３に向かって下降する勾配を有する。
　溝１３の底面は、右下がりとなる下り勾配を有し、底面の右側端部近傍にドレン排出のためのドレン口１４が設けられている。ドレン口１４には下方に延在する短管１５が接続されており、短管１５の下端に不図示のホースの一端が接続されている。不図示のホースの他端は、背面１００ｂに設けられたドレン排出用ノズルに接続されている。
　ドレンパン１０には、ドレン口１４の近傍にメンテナンス用の点検口１６が設けられている。点検口１６は、例えば溝１３の背面側の側面に開口しており、ドレンが漏れないように着脱可能な不図示の蓋で覆われている。 The bottom plates 11 and 12 have a slope that descends toward the groove 13.
The bottom surface of the groove 13 has a downward slope that is downwardly inclined, and a drain port 14 for draining is provided near the right end of the bottom surface. A short pipe 15 extending downward is connected to the drain port 14, and one end of a hose (not shown) is connected to the lower end of the short pipe 15. The other end of the hose (not shown) is connected to a drain discharge nozzle provided on the back surface 100b.
The drain pan 10 is provided with a maintenance inspection port 16 in the vicinity of the drain port 14. The inspection port 16 is opened, for example, on the side surface on the back side of the groove 13 and is covered with a cover (not shown) that can be attached and detached so that the drain does not leak.
　一対のパネル状熱交換器３６で発生したドレンは、ドレンパン１０で集められる。また、例えばヒートポンプユニット５０が屋外に設置されている場合には、空気流出口１１２及びファン３４のケーシングの開口３４ｂを介して箱形ケーシング１００の内部、すなわち一対のパネル状熱交換器３６で挟まれた領域に雨水が侵入する。この侵入した雨水もドレンパン１０で集められる。すなわち、一対のパネル状熱交換器３６で発生したドレン及びヒートポンプユニット５０内に侵入した雨水は、ドレンパン１０の底板１１，１２に流下して溝１３に流入する。溝１３に流入したドレンや雨水は、溝１３内を溝１３の右側端部側のドレン口１４に向かって流れ、ドレン口１４から短管１５及び不図示のホースを介して背面１００ｂのドレン排出用ノズルからヒートポンプユニット５０の外部に排出される。 The drain generated in the pair of panel heat exchangers 36 is collected in the drain pan 10. For example, when the heat pump unit 50 is installed outdoors, the heat pump unit 50 is sandwiched between the inside of the box-shaped casing 100, that is, the pair of panel heat exchangers 36, through the air outlet 112 and the opening 34b of the casing of the fan 34. Rainwater enters the area. This invading rainwater is also collected in the drain pan 10. That is, the drain generated in the pair of panel heat exchangers 36 and the rainwater entering the heat pump unit 50 flow down to the bottom plates 11 and 12 of the drain pan 10 and flow into the grooves 13. Drain and rainwater flowing into the groove 13 flows in the groove 13 toward the drain port 14 on the right end side of the groove 13, and drains from the back surface 100 b through the short tube 15 and a hose (not shown). Is discharged from the heat nozzle to the outside of the heat pump unit 50.
　一実施形態のヒートポンプユニット５０では、一対のパネル状熱交換器３６で挟まれた領域の上方に空気流出口１１２及びファン３４のケーシングの開口３４ｂが設けられているため、ヒートポンプユニット５０の外部の異物（以下、単に異物と呼ぶ）が空気流出口１１２及び開口３４ｂを介して箱形ケーシング１００の内部に侵入するおそれがある。例えば、ヒートポンプユニット５０が屋外に設定されている場合には、異物が空気流出口１１２及び開口３４ｂを介して箱形ケーシング１００の内部に侵入するおそれが高くなる。箱形ケーシング１００の内部に侵入する異物としては、例えば樹木の葉などが挙げられる。
　箱形ケーシング１００の内部に侵入した異物は、ドレン口１４の上に直接落下したり、底板１１，１２や溝１３をドレンとともに流下することでドレン口１４に到達する。ドレン口１４に到達した異物は、ドレン口１４を覆ったり、短管１５や不図示のホースに流れ込んでこれらの内部で詰まったりすることでドレンの排出を阻害するおそれがある。 In the heat pump unit 50 of the embodiment, the air outlet 112 and the opening 34b of the casing of the fan 34 are provided above the region sandwiched between the pair of panel heat exchangers 36. There is a possibility that foreign matter (hereinafter simply referred to as foreign matter) may enter the box-shaped casing 100 through the air outlet 112 and the opening 34b. For example, when the heat pump unit 50 is set outdoors, there is a high risk that foreign matter will enter the box-shaped casing 100 through the air outlet 112 and the opening 34b. Examples of the foreign matter that enters the inside of the box-shaped casing 100 include tree leaves.
The foreign matter that has entered the inside of the box-shaped casing 100 falls directly on the drain port 14 or reaches the drain port 14 by flowing down the bottom plates 11 and 12 and the groove 13 together with the drain. The foreign matter that has reached the drain port 14 may cover the drain port 14 or may flow into the short pipe 15 or a hose (not shown) and become clogged inside, thereby hindering drainage.
　そこで、一実施形態のヒートポンプユニット５０には、異物がドレン口１４に侵入するのを阻止する詰まり防止部材として、図５に示すように、防葉柵２０がドレン口１４に配置されている。
　図５は、ドレンパン１０及びドレン口１４に設置された一実施形態の防葉柵２０を示す斜視図であり、図６は、一実施形態の防葉柵２０の斜視図である。 In view of this, in the heat pump unit 50 of one embodiment, as shown in FIG. 5, the leaf fence 20 is disposed at the drain port 14 as a clogging preventing member that prevents foreign matter from entering the drain port 14.
FIG. 5 is a perspective view showing a leaf fence 20 according to an embodiment installed in the drain pan 10 and the drain port 14, and FIG. 6 is a perspective view of the leaf fence 20 according to the embodiment.
　すなわち、一実施形態の熱交換ユニット３０は、上下方向に沿って設けられたパネル状熱交換器３６と、パネル状熱交換器３６の下方に設けられ、ドレン口１４を有するドレンパン１０と、ドレン口１４に配置され、パネル状熱交換器３６で発生するドレン以外の異物がドレン口１４に侵入するのを阻止する詰まり防止部材である防葉柵２０とを備える。一実施形態の熱交換ユニット３０は、箱形ケーシング１００内の上部領域に設けられている。
　一実施形態の熱交換ユニット３０では、パネル状熱交換器３６で発生するドレン以外の異物がドレン口１４に侵入するのを阻止する防葉柵２０がドレン口１４に配置されているので、異物がドレン口１４に侵入せず、異物によるドレン口１４の詰まりを防止できる。 That is, the heat exchange unit 30 of one embodiment includes a panel heat exchanger 36 provided along the vertical direction, a drain pan 10 provided below the panel heat exchanger 36 and having a drain port 14, and a drain. A leaf fence 20 that is a clogging prevention member that is disposed at the opening 14 and prevents foreign matter other than the drain generated by the panel heat exchanger 36 from entering the drain opening 14 is provided. The heat exchange unit 30 of one embodiment is provided in the upper region in the box-shaped casing 100.
In the heat exchange unit 30 of one embodiment, since the leaf fence 20 that prevents foreign matter other than the drain generated in the panel heat exchanger 36 from entering the drain port 14 is disposed at the drain port 14, Does not enter the drain port 14 and can prevent the drain port 14 from being clogged with foreign matter.
　以下、図５及び図６を参照して、一実施形態の防葉柵２０について説明する。
　図６に示すように、一実施形態の防葉柵２０は、ドレンが通過可能な網目状の基部２１と、基部２１に設けられ、基部２１から上方へ突出する複数の針２２とを有する。一実施形態の防葉柵２０では、基部２１は平坦な底面２１ａを有し、複数の針２２は底面２１ａに対して直交する方向に沿って設けられている。一実施形態の防葉柵２０では、複数の針２２は、互いに間隔を置いて配置され、かつ同等の高さを有している。 Hereinafter, with reference to FIG.5 and FIG.6, the leaf fence 20 of one Embodiment is demonstrated.
As shown in FIG. 6, the leaf fence 20 according to one embodiment includes a mesh-like base portion 21 through which drain can pass and a plurality of needles 22 provided on the base portion 21 and projecting upward from the base portion 21. In the leaf fence 20 of one embodiment, the base 21 has a flat bottom surface 21a, and the plurality of needles 22 are provided along a direction orthogonal to the bottom surface 21a. In the leaf fence 20 according to one embodiment, the plurality of needles 22 are spaced apart from each other and have the same height.
　図５に示すように、一実施形態の防葉柵２０は、溝１３の底面に載置され、ドレン口１４を覆う。一実施形態の防葉柵２０は、前後方向の寸法が溝１３の幅、すなわち、溝１３の前後方向の寸法と略等しい。これにより、防葉柵２０の溝１３の幅方向への移動や前後方向への転倒が溝１３の前側及び後側の側面で規制されるので、防葉柵２０を安定して設置でき、基部２１がドレン口１４を確実に覆い、異物のドレン口１４への侵入を阻止できる。
　また、一実施形態の防葉柵２０の左右方向の寸法は、防葉柵２０の右端が溝１３の右側（下流側）の側壁に当接した状態で、防葉柵２０の左端がドレン口１４の左端よりも左側に位置するように設定されている。これにより、ドレンの流れによって防葉柵２０が溝１３の下流側に移動しても基部２１がドレン口１４を確実に覆うので、異物のドレン口１４への侵入を阻止できる。
　なお、防葉柵２０の左右方向の寸法、すなわち溝１３の長手方向に沿った寸法は、溝１３内において左右方向に転倒しないように、防葉柵２０の重心位置を考慮して設定することが望ましい。 As shown in FIG. 5, the leaf fence 20 of one embodiment is placed on the bottom surface of the groove 13 and covers the drain port 14. In the leaf fence 20 according to one embodiment, the dimension in the front-rear direction is substantially equal to the width of the groove 13, that is, the dimension in the front-rear direction of the groove 13. Thereby, since the movement to the width direction of the groove | channel 13 of the leaf fence 20 and the fall to the front-back direction are controlled by the front side and the rear side surface of the groove 13, the leaf fence 20 can be installed stably, and the base 21 reliably covers the drain port 14 and can prevent foreign matter from entering the drain port 14.
Moreover, the dimension of the left-right direction of the leaf fence 20 of one embodiment is the state in which the right end of the leaf fence 20 is in contact with the right side (downstream side) side wall of the groove 13 and the left end of the leaf fence 20 is a drain port. 14 is set to be located on the left side of the left end. Thereby, even if the leaf fence 20 moves to the downstream side of the groove 13 due to the flow of the drain, the base 21 reliably covers the drain port 14, so that foreign matter can be prevented from entering the drain port 14.
The horizontal dimension of the leaf fence 20, that is, the dimension along the longitudinal direction of the groove 13 should be set in consideration of the position of the center of gravity of the fence fence 20 so as not to fall in the horizontal direction in the groove 13. Is desirable.
　一実施形態の防葉柵２０では、上方からの異物は複数の針２２の上端で阻止され、ドレンとともに溝１３を流れてくる異物は左側、すなわち溝１３の上流側で前後方向に並んでいる複数の針２２の側面で阻止される。なお、一実施形態の防葉柵２０では、針２２の上端で阻止されずに落下した異物は、網目状の基部２１で阻止される。また一実施形態の防葉柵２０では、溝１３の上流側に並んでいる針２２の間を通過した異物は、それらの針２２よりも下流側の針２２の側面や、網目状の基部２１で阻止される。
　一実施形態の防葉柵２０では、針２２と針２２との間は離間しており、基部２１も網目状なので、ドレンは防葉柵２０に阻害されずにドレン口１４へ流れる。 In the leaf fence 20 according to one embodiment, foreign matter from above is blocked by the upper ends of the plurality of needles 22, and foreign matter flowing through the groove 13 together with drains is lined up in the front-rear direction on the left side, that is, upstream of the groove 13. Blocked by the side surfaces of the plurality of needles 22. In the leaf fence 20 according to the embodiment, foreign matter that has fallen without being blocked by the upper end of the needle 22 is blocked by the mesh-shaped base 21. Further, in the leaf fence 20 of one embodiment, the foreign matter that has passed between the needles 22 arranged on the upstream side of the groove 13 is the side surface of the needle 22 on the downstream side of the needles 22 or the mesh-like base 21. Is blocked.
In the leaf fence 20 according to one embodiment, the needle 22 and the needle 22 are separated from each other, and the base 21 is also mesh-shaped, so that the drain flows to the drain port 14 without being inhibited by the leaf fence 20.
　一実施形態では、防葉柵２０の上部や側面に溜まった異物を次のようにして取り除くことができる。まず、図１（ｂ）に示したヒートポンプユニット５０の背面下側パネル板１０３を取り外す。これにより、ヒートポンプユニット５０の背面１００ｂからドレンパン１０の溝１３の背面側に設けられた点検口１６にアクセスできる。次いで、点検口１６を覆う不図示の蓋を外すことで点検口１６を開放でき、堆積した異物を取り除いたり、防葉柵２０を取り外したりすることができる。 In one embodiment, foreign substances accumulated on the top and side surfaces of the leaf fence 20 can be removed as follows. First, the lower back panel 103 of the heat pump unit 50 shown in FIG. Accordingly, the inspection port 16 provided on the back side of the groove 13 of the drain pan 10 can be accessed from the back surface 100 b of the heat pump unit 50. Next, the inspection port 16 can be opened by removing a lid (not shown) that covers the inspection port 16, and the accumulated foreign matter can be removed or the leaf fence 20 can be removed.
　なお、防葉柵２０として、市販のハト避け用の部材を用いてもよい。これにより、防葉柵２０を安価に入手できる。 A commercially available member for avoiding pigeons may be used as the leaf fence 20. Thereby, the leaf fence 20 can be obtained at low cost.
　上述したように、一実施形態では、防葉柵２０は、ドレンが通過可能な網目状の基部２１と、基部２１に設けられ、基部２１から上方へ突出する複数の針２２とを有する。
　これにより、ドレンの流れを阻害することなく上方からの異物の侵入を針２２の上端で阻止できるので、ドレン口１４の詰まりを防止する効果が高い。また、複数の針２２が基部２１に設けられているので、複数の針２２が一体化されていて、防葉柵２０の設置が容易である。 As described above, in one embodiment, the leaf fence 20 includes a mesh-like base portion 21 through which drain can pass and a plurality of needles 22 provided on the base portion 21 and projecting upward from the base portion 21.
Thereby, since the intrusion of foreign matter from above can be prevented at the upper end of the needle 22 without hindering the flow of drain, the effect of preventing clogging of the drain port 14 is high. Moreover, since the several needle | hook 22 is provided in the base 21, the several needle | hook 22 is integrated and the installation of the leaf fence 20 is easy.
　上述した一実施形態では、複数の針２２は、互いに間隔を置いて配置され、かつ同等の高さを有している。
　これにより、上方からの異物の侵入を針２２の上端で効果的に阻止できる。 In the embodiment described above, the plurality of needles 22 are spaced apart from each other and have an equivalent height.
Thereby, the entry of foreign matter from above can be effectively prevented at the upper end of the needle 22.
　上述した一実施形態では、防葉柵２０の基部２１は平坦な底面２１ａを有し、複数の針２２は底面２１ａに対して直交する方向に沿って設けられている。
　これにより、上方からの異物の侵入を針２２の上端で効果的に阻止できる。また、基部２１が平坦な底面２１ａを有するので、配置された防葉柵２０が転倒しにくくなり、安定する。また、複数の針２２が平坦な底面２１ａを有する基部２１に設けられているので、防葉柵２０の設置が容易である。 In one embodiment mentioned above, base 21 of leaf fence 20 has flat bottom 21a, and a plurality of needles 22 are provided along the direction orthogonal to bottom 21a.
Thereby, the entry of foreign matter from above can be effectively prevented at the upper end of the needle 22. Moreover, since the base part 21 has the flat bottom face 21a, the arranged leaf fence 20 becomes difficult to fall down and is stabilized. Moreover, since the several needle | hook 22 is provided in the base 21 which has the flat bottom face 21a, installation of the leaf fence 20 is easy.
　上述した一実施形態では、パネル状熱交換器３６の内部に冷媒流路が形成され、かつ空気がパネル状熱交換器３６の表裏面を通過可能に構成されている。
　これにより、一実施形態の熱交換ユニット３０において、異物がドレン口１４に侵入せず、異物によるドレン口１４の詰まりを防止できる。また、上述したようにパネル状熱交換器３６の内部に冷媒流路が形成され、かつ空気がパネル状熱交換器の表裏面を通過可能に構成されているので、発生したドレンをドレンパン１０へ確実に排出できる。 In the above-described embodiment, a refrigerant flow path is formed inside the panel heat exchanger 36, and air can pass through the front and back surfaces of the panel heat exchanger 36.
Thereby, in the heat exchange unit 30 of one Embodiment, a foreign material does not penetrate | invade into the drain port 14, but clogging of the drain port 14 by a foreign material can be prevented. Further, as described above, the refrigerant flow path is formed inside the panel heat exchanger 36 and the air can pass through the front and back surfaces of the panel heat exchanger. Therefore, the generated drain is transferred to the drain pan 10. Can be discharged reliably.
　上述した一実施形態では、ドレンパン１０は、パネル状熱交換器３６の長手方向に沿って延在する溝１３を有する。防葉柵２０は、溝１３内においてパネル状熱交換器３６の長手方向に沿って延在している。
　溝１３がパネル状熱交換器３６の長手方向に沿って延在するので、パネル状熱交換器３６で発生したドレンを効果的に集められる。また、防葉柵２０が溝１３内においてパネル状熱交換器３６の長手方向に沿って延在しているので、ドレンとともに溝１３内を流れてくる異物を溝１３内の防葉柵２０によって効果的に阻止できる。 In the above-described embodiment, the drain pan 10 has the groove 13 that extends along the longitudinal direction of the panel heat exchanger 36. The leaf fence 20 extends along the longitudinal direction of the panel heat exchanger 36 in the groove 13.
Since the groove 13 extends along the longitudinal direction of the panel heat exchanger 36, the drain generated by the panel heat exchanger 36 can be collected effectively. Moreover, since the leaf fence 20 extends along the longitudinal direction of the panel heat exchanger 36 in the groove 13, the foreign material flowing in the groove 13 together with the drain is caused by the leaf fence 20 in the groove 13. Can be effectively blocked.
　上述した一実施形態では、パネル状熱交換器３６は、上方から下方へ向けて間隔が狭まるように配置された一対のパネル状熱交換器３６を含む。ドレンパン１０は、一対のパネル状熱交換器３６の下部及び一対のパネル状熱交換器３６の間の領域に配置されている。
　これにより、一実施形態の熱交換ユニット３０において、異物がドレン口１４に侵入せず、異物によるドレン口１４の詰まりを防止できる。また、上方から下方へ向けて間隔が狭まるように配置された一対のパネル状熱交換器３６の下部及び一対のパネル状熱交換器３６の間の領域にドレンパン１０が配置されているので、ドレンパン１０を小型化できる。 In the above-described embodiment, the panel-shaped heat exchanger 36 includes a pair of panel-shaped heat exchangers 36 that are arranged so that the distance between the panel-shaped heat exchanger 36 decreases from the top to the bottom. The drain pan 10 is disposed in a region between the lower part of the pair of panel heat exchangers 36 and the pair of panel heat exchangers 36.
Thereby, in the heat exchange unit 30 of one Embodiment, a foreign material does not penetrate | invade into the drain port 14, but clogging of the drain port 14 by a foreign material can be prevented. Moreover, since the drain pan 10 is arrange | positioned in the area | region between the lower part of a pair of panel-like heat exchanger 36 and the pair of panel-like heat exchangers 36 which are arrange | positioned so that a space | interval may become narrowing toward the downward direction from upper direction, 10 can be reduced in size.
　上述した一実施形態では、溝１３は一対のパネル状熱交換器３６の間の領域に一対のパネル状熱交換器３６の長手方向に沿って延在する。
　これにより、一実施形態の熱交換ユニット３０において、異物がドレン口１４に侵入せず、異物によるドレン口１４の詰まりを防止できる。また、溝１３が一対のパネル状熱交換器３６の間の領域にパネル状熱交換器３６の長手方向に沿って延在するので、パネル状熱交換器３６で発生したドレンを効果的に集められる。 In the above-described embodiment, the groove 13 extends in the region between the pair of panel heat exchangers 36 along the longitudinal direction of the pair of panel heat exchangers 36.
Thereby, in the heat exchange unit 30 of one Embodiment, a foreign material does not penetrate | invade into the drain port 14, but clogging of the drain port 14 by a foreign material can be prevented. Moreover, since the groove | channel 13 is extended along the longitudinal direction of the panel-shaped heat exchanger 36 in the area | region between a pair of panel-shaped heat exchangers 36, the drain which generate | occur | produced in the panel-shaped heat exchanger 36 is collected effectively. It is done.
　一実施形態に係るヒートポンプユニット５０は、箱形ケーシング１００と、箱形ケーシング１００内の上部領域に設けられた上記の熱交換ユニット３０と、箱形ケーシング１００内の下部領域に設けられ、パネル状熱交換器３６が蒸発器として組み込まれるヒートポンプサイクル構成機器５２とを備える。 A heat pump unit 50 according to an embodiment is provided in a box-shaped casing 100, the above-described heat exchange unit 30 provided in an upper region in the box-shaped casing 100, and a lower region in the box-shaped casing 100. The heat exchanger 36 includes a heat pump cycle component 52 in which the heat exchanger 36 is incorporated as an evaporator.
　一実施形態に係るヒートポンプユニット５０では、パネル状熱交換器３６で発生するドレン以外の異物がドレン口１４に侵入するのを阻止する防葉柵２０がドレン口１４に配置されているので、異物がドレン口１４に侵入せず、異物によるドレン口１４の詰まりを防止できる。また、防葉柵２０がドレン口１４への異物の侵入を防止するので、異物が短管１５や不図示のホースに流れ込んでこれらの内部で詰まるのを防止できる。これにより、異物によるドレンの排出が阻害されることを防止できるとともに、異物を除去する等のメンテナンスの頻度を減らすことができ、メンテナンスコストを削減できる。 In the heat pump unit 50 according to the embodiment, since the leaf fence 20 that prevents foreign matter other than the drain generated by the panel heat exchanger 36 from entering the drain port 14 is disposed at the drain port 14, Does not enter the drain port 14 and can prevent the drain port 14 from being clogged with foreign matter. Moreover, since the leaf fence 20 prevents foreign matter from entering the drain port 14, foreign matter can be prevented from flowing into the short pipe 15 or a hose (not shown) and being clogged inside. Thereby, it is possible to prevent the discharge of the drain due to the foreign matter, and to reduce the maintenance frequency such as removing the foreign matter, thereby reducing the maintenance cost.
　以上、本発明の実施形態について説明したが、本発明は上記の形態に限定されるものではなく、本発明の目的を逸脱しない範囲で種々の変更が可能である。 As mentioned above, although embodiment of this invention was described, this invention is not limited to said form, A various change is possible in the range which does not deviate from the objective of this invention.
　上述した一実施形態では、図６に示すように、防葉柵２０が複数の針２２を有している。しかし、例えば、針２２の上端は、尖っていなくてもよい。すなわち、防葉柵２０が、上端が尖っている針２２に代えて、上端が尖っていない複数の棒状の部位を有していてもよい。 In the above-described embodiment, the leaf fence 20 has a plurality of needles 22 as shown in FIG. However, for example, the upper end of the needle 22 may not be sharp. In other words, the leaf fence 20 may have a plurality of rod-shaped parts whose top ends are not sharp instead of the needles 22 whose top ends are sharp.
　上述した一実施形態では、図６に示すように、防葉柵２０が複数の針２２が前後方向及び左右方向に沿って直線状に並んでいる。しかし、複数の針２２は必ずしも前後方向及び左右方向に沿って直線状に並んでいる必要はなく、複数の針２２のそれぞれの上端が適宜前後方向および左右方向に互いに離間するように、複数の針２２が配置されていればよく、その間隔も必ずしも等間隔である必要はない。また、上述した一実施形態では、図６に示すように、複数の針２２の上端の高さが略等しかったが、複数の針２２の上端の高さは、それぞれ異なっていてもよい。 In the above-described embodiment, as shown in FIG. 6, the leaf fence 20 has a plurality of needles 22 arranged in a straight line along the front-rear direction and the left-right direction. However, the plurality of needles 22 are not necessarily arranged in a straight line along the front-rear direction and the left-right direction, and the plurality of needles 22 are arranged so that the upper ends of the needles 22 are appropriately separated from each other in the front-rear direction and the left-right direction. Needles 22 need only be arranged, and the intervals are not necessarily equal. In the above-described embodiment, as shown in FIG. 6, the heights of the upper ends of the plurality of needles 22 are substantially equal, but the heights of the upper ends of the plurality of needles 22 may be different from each other.
　上述した一実施形態では、図６に示すように、針２２は、基部２１における前後方向に延在する部位と左右方向に延在する部位との交差部に配置されている。しかし、針２２は、基部２１における該交差部以外の部位に配置されていてもよい。 In the embodiment described above, as shown in FIG. 6, the needle 22 is disposed at the intersection of the portion extending in the front-rear direction and the portion extending in the left-right direction in the base portion 21. However, the needle 22 may be disposed at a portion other than the intersecting portion in the base portion 21.
　上述した一実施形態では、図６に示すように、防葉柵２０が網目状の基部２１と、基部２１から上方へ突出する複数の針２２とを有している。しかし、例えば、防葉柵２０の上面、すなわち複数の針２２の上端側がそれぞれ隣接する針２２の上端側と互いに接続されて、網目状の基部２１と同様の形状を呈していてもよい。また、例えば、一実施形態の防葉柵２０に代えて、少なくとも上面と底面と左側（上流側）の側面とが網目状に形成されていて、ドレンの流通を妨げないように形成された直方体形状を呈する部材を詰まり防止部材としてもよい。 In the above-described embodiment, as shown in FIG. 6, the leaf fence 20 has a mesh-like base portion 21 and a plurality of needles 22 protruding upward from the base portion 21. However, for example, the upper surface of the leaf fence 20, that is, the upper ends of the plurality of needles 22 may be connected to the upper ends of the adjacent needles 22 to form the same shape as the mesh-shaped base 21. Further, for example, instead of the leaf fence 20 of one embodiment, a rectangular parallelepiped formed so that at least the top surface, the bottom surface, and the left side (upstream side) side surface are formed in a mesh shape so as not to disturb the flow of the drain. A member having a shape may be used as a clogging prevention member.
　上述した一実施形態では、図６に示すように、防葉柵２０の基部２１は平坦な底面２１ａを有し、複数の針２２は底面２１ａに対して直交する方向に沿って設けられている。しかし、例えば、底面２１ａが段差を有していてもよく、底面２１ａが湾曲していてもよい。また、針２２は、必ずしも底面２１ａに対して直交する方向に沿って設けられてなくてもよく、例えば、斜め上方に向かって延在していてもよいし、曲部を有していてもよい。 In the above-described embodiment, as shown in FIG. 6, the base 21 of the leaf fence 20 has a flat bottom surface 21a, and the plurality of needles 22 are provided along a direction orthogonal to the bottom surface 21a. . However, for example, the bottom surface 21a may have a step, or the bottom surface 21a may be curved. The needle 22 does not necessarily have to be provided along the direction orthogonal to the bottom surface 21a. For example, the needle 22 may extend obliquely upward or may have a curved portion. Good.
　上述した一実施形態では、ドレンパン１０がパネル状熱交換器３６の長手方向に沿って延在する溝１３を有していた。しかし、溝１３は、パネル状熱交換器３６の長手方向とは異なる方向に沿って延在していてもよい。また、上述した一実施形態では、防葉柵２０は溝１３内においてパネル状熱交換器３６の長手方向に沿って延在していた。しかし、例えば、溝１３がパネル状熱交換器３６の長手方向とは異なる方向に沿って延在していれば、防葉柵２０は、溝１３内においてパネル状熱交換器３６の長手方向ではなく、溝１３の延在方向に沿って延在していてもよい。 In the above-described embodiment, the drain pan 10 has the groove 13 extending along the longitudinal direction of the panel heat exchanger 36. However, the groove 13 may extend along a direction different from the longitudinal direction of the panel heat exchanger 36. Moreover, in one Embodiment mentioned above, the leaf fence 20 extended along the longitudinal direction of the panel-shaped heat exchanger 36 in the groove | channel 13. As shown in FIG. However, for example, if the groove 13 extends along a direction different from the longitudinal direction of the panel heat exchanger 36, the leaf fence 20 is disposed in the groove 13 in the longitudinal direction of the panel heat exchanger 36. Instead, it may extend along the extending direction of the groove 13.
　上述した一実施形態では、一対のパネル状熱交換器３６は、一対のパネル状熱交換器３６の間隔が下方に向かうにつれて小さくなるようにＶ字形に配置されている。しかし、一対のパネル状熱交換器３６は、例えば一対のパネル状熱交換器３６の間隔が上方と下方とで等しくなるように配置されていてもよく、下方に向かうにつれて大きくなるように逆Ｖ字形に配置されていてもよい。 In the above-described embodiment, the pair of panel heat exchangers 36 are arranged in a V shape so that the distance between the pair of panel heat exchangers 36 decreases toward the bottom. However, the pair of panel-like heat exchangers 36 may be arranged, for example, so that the distance between the pair of panel-like heat exchangers 36 is equal between the upper side and the lower side. It may be arranged in a letter shape.
　例えば、上述の実施形態では、ヒートポンプサイクルを構成する機器を備えるヒートポンプユニット５０について説明したが、ヒートポンプユニット５０について上述した内容は、冷凍サイクルを構成する機器を備える冷凍ユニットに適用可能である。 For example, in the above-described embodiment, the heat pump unit 50 including the devices that configure the heat pump cycle has been described. However, the above-described content of the heat pump unit 50 can be applied to a refrigeration unit including the devices that configure the refrigeration cycle.
１０　　ドレンパン
１１，１２　底板
１３　　溝
１４　　ドレン口
１５　　短管
１６　　点検口
２０　　防葉柵
２１　　基部
２１ａ　底面
２２　　針
３０　　熱交換ユニット
３１　　熱交換器用架台
３２　　ファン架台
３４　　ファン
３４ａ　羽根
３４ｂ　開口
３６　　パネル状熱交換器
５０　　ヒートポンプユニット
５１　　ベースプレート
５２　　ヒートポンプサイクル構成機器
５４　　冷媒循環路
５６　　圧縮機
５８　　ガスクーラ
６０　　冷却水路
６２　　ポンプ
６４　　内部熱交換器
６６　　膨張弁
７０　　冷媒タンク
１００　　箱形ケーシング
１００ａ　前面（正面）
１００ｂ　後面（背面）
１０３　　背面下側パネル板
１１１　　空気取込み口
１１２　　空気流出口
ａ　　空気流 10 Drain pans 11 and 12 Bottom plate 13 Drain 14 Drain port 15 Short tube 16 Inspection port 20 Leaf guard 21 Base 21a Bottom 22 Needle 30 Heat exchange unit 31 Heat exchanger frame 32 Fan frame 34 Fan 34a Blade 34b Opening 36 Panel heat exchange 50 Heat pump unit 51 Base plate 52 Heat pump cycle component 54 Refrigerant circulation path 56 Compressor 58 Gas cooler 60 Cooling water path 62 Pump 64 Internal heat exchanger 66 Expansion valve 70 Refrigerant tank 100 Box-shaped casing 100a Front (front)
100b Rear (rear)
103 Rear lower panel 111 Air intake 112 Air outlet a Air flow

Claims (9)

  1. 　上下方向に沿って設けられたパネル状熱交換器と、
    　前記パネル状熱交換器の下方に設けられ、ドレン口を有するドレンパンと、
    　前記ドレン口に配置され、前記パネル状熱交換器で発生するドレン以外の異物が前記ドレン口に侵入するのを阻止する詰まり防止部材と、
    　を備えることを特徴とする熱交換ユニット。     A panel heat exchanger provided along the vertical direction;
    A drain pan provided below the panel heat exchanger and having a drain port;
    A clogging preventing member that is disposed in the drain port and prevents foreign matter other than the drain generated in the panel heat exchanger from entering the drain port;
    A heat exchange unit comprising:
  2. 　前記詰まり防止部材は、
    　前記ドレンが通過可能な網目状の基部と、
    　前記基部に設けられ、前記基部から上方へ突出する複数の針と、
    　を有することを特徴とする請求項１に記載の熱交換ユニット。     The clogging prevention member is
    A mesh-like base through which the drain can pass;
    A plurality of needles provided on the base and projecting upward from the base;
    The heat exchange unit according to claim 1, wherein
  3. 　前記複数の針は、互いに間隔を置いて配置され、かつ同等の高さを有していることを特徴とする請求項２に記載の熱交換ユニット。 The heat exchange unit according to claim 2, wherein the plurality of needles are arranged at intervals and have the same height.
  4. 　前記詰まり防止部材の前記基部は平坦な底面を有し、前記複数の針は前記底面に対して直交する方向に沿って設けられていることを特徴とする請求項２又は３に記載の熱交換ユニット。 The heat exchange according to claim 2 or 3, wherein the base portion of the clogging prevention member has a flat bottom surface, and the plurality of needles are provided along a direction orthogonal to the bottom surface. unit.
  5. 　前記パネル状熱交換器の内部に熱交換媒体流路が形成され、かつ空気が前記パネル状熱交換器の表裏面を通過可能に構成されていることを特徴とする請求項１乃至４の何れか一項に記載の熱交換ユニット。 The heat exchanger medium flow path is formed inside the panel heat exchanger, and air is configured to pass through the front and back surfaces of the panel heat exchanger. The heat exchange unit according to claim 1.
  6. 　前記ドレンパンは前記パネル状熱交換器の長手方向に沿って延在する溝を有し、
    　前記詰まり防止部材は前記溝内において前記長手方向に沿って延在していることを特徴とする請求項１乃至５の何れか一項に記載の熱交換ユニット。     The drain pan has a groove extending along the longitudinal direction of the panel heat exchanger,
    The heat exchange unit according to any one of claims 1 to 5, wherein the clogging prevention member extends along the longitudinal direction in the groove.
  7. 　前記パネル状熱交換器は、上方から下方へ向けて間隔が狭まるように配置された一対の前記パネル状熱交換器を含み、
    　前記溝は前記一対の前記パネル状熱交換器の間の領域に前記一対の前記パネル状熱交換器の前記長手方向に沿って延在することを特徴とする請求項６に記載の熱交換ユニット。     The panel-like heat exchanger includes a pair of the panel-like heat exchangers arranged so that the interval is narrowed from the upper side to the lower side,
    The heat exchange unit according to claim 6, wherein the groove extends in a region between the pair of panel-like heat exchangers along the longitudinal direction of the pair of panel-like heat exchangers. .
  8. 　前記パネル状熱交換器は、上方から下方へ向けて間隔が狭まるように配置された一対の前記パネル状熱交換器を含み、
    　前記ドレンパンは、前記一対の前記パネル状熱交換器の下部及び前記一対の前記パネル状熱交換器の間の領域に配置されていることを特徴とする請求項１乃至７の何れか一項に記載の熱交換ユニット。     The panel-like heat exchanger includes a pair of the panel-like heat exchangers arranged so that the interval is narrowed from the upper side to the lower side,
    The said drain pan is arrange | positioned in the area | region between the lower part of the said pair of said panel-like heat exchanger, and the said pair of said panel-like heat exchanger, The Claim 1 thru | or 7 characterized by the above-mentioned. The heat exchange unit described.
  9. 　箱形ケーシングと、
    　前記箱形ケーシング内の上部領域に設けられ、請求項１乃至８の何れか一項に記載の熱交換ユニットと、
    　前記箱形ケーシング内の下部領域に設けられ、前記パネル状熱交換器が蒸発器として組み込まれるヒートポンプサイクル構成機器と、
    　を備えることを特徴とするヒートポンプユニット。     A box-shaped casing;
    The heat exchange unit according to any one of claims 1 to 8, provided in an upper region in the box-shaped casing;
    A heat pump cycle constituent device provided in a lower region in the box-shaped casing, in which the panel heat exchanger is incorporated as an evaporator;
    A heat pump unit comprising:
PCT/JP2018/004382 2017-02-10 2018-02-08 Heat exchange unit and heat pump unit WO2018147365A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109442721A (en) * 2018-11-16 2019-03-08 无锡同方人工环境有限公司 A kind of air cooling module unit outline border

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6826454B2 (en) * 2017-02-10 2021-02-03 株式会社前川製作所 Heat exchange unit and heat pump unit
WO2023209767A1 (en) * 2022-04-25 2023-11-02 三菱電機株式会社 Heat exchanger support device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51131845U (en) * 1975-04-16 1976-10-23
JPS5257876U (en) * 1975-10-21 1977-04-26
JPS53155146U (en) * 1977-05-13 1978-12-06
JPS62213621A (en) * 1986-03-12 1987-09-19 Toshiba Corp Air conditioner
JPS62173619U (en) * 1986-04-25 1987-11-04
JP2007163017A (en) * 2005-12-13 2007-06-28 Toyo Kiyaria Kogyo Kk Heat exchange unit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5546901Y2 (en) * 1976-05-07 1980-11-04
JPS5678917U (en) * 1979-11-22 1981-06-26
JP6826454B2 (en) * 2017-02-10 2021-02-03 株式会社前川製作所 Heat exchange unit and heat pump unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51131845U (en) * 1975-04-16 1976-10-23
JPS5257876U (en) * 1975-10-21 1977-04-26
JPS53155146U (en) * 1977-05-13 1978-12-06
JPS62213621A (en) * 1986-03-12 1987-09-19 Toshiba Corp Air conditioner
JPS62173619U (en) * 1986-04-25 1987-11-04
JP2007163017A (en) * 2005-12-13 2007-06-28 Toyo Kiyaria Kogyo Kk Heat exchange unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109442721A (en) * 2018-11-16 2019-03-08 无锡同方人工环境有限公司 A kind of air cooling module unit outline border

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CN108413650A (en) 2018-08-17

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