CN101529169B - Heat source unit for refrigerating apparatus, and refrigerating apparatus - Google Patents
Heat source unit for refrigerating apparatus, and refrigerating apparatus Download PDFInfo
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- CN101529169B CN101529169B CN2007800394660A CN200780039466A CN101529169B CN 101529169 B CN101529169 B CN 101529169B CN 2007800394660 A CN2007800394660 A CN 2007800394660A CN 200780039466 A CN200780039466 A CN 200780039466A CN 101529169 B CN101529169 B CN 101529169B
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/006—Compression machines, plants or systems with reversible cycle not otherwise provided for two pipes connecting the outdoor side to the indoor side with multiple indoor units
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/021—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit
- F25B2313/0215—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit the auxiliary heat exchanger being used parallel to the outdoor heat exchanger during heating operation
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0231—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with simultaneous cooling and heating
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02742—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two four-way valves
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02743—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using three four-way valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a heat source unit and for refrigerating apparatus and a refrigerating apparatus. The heat source circuit (12) includes: a first gas port (31) constantly communicating with a discharge side of a compressor (14); a second gas port (32) constantly communicating with a suction side of the compressor (14); a third gas port (33) selectively communicating with one of a first gas line (25) and a second gas line (26); a liquid port (34) constantly communicating with a liquid inlet/outlet end of a heat-source heat exchanger (15); a first switching mechanism (17) which switches a state of communication of a gas inlet/outlet end of the heat-source heat exchanger (15); and a second switching mechanism (18) which switches a state of communication of a third gas line (27).
Description
Technical field
The present invention relates to a kind of by contact pipe arrangement and the thermal source unit of the refrigerating plant that utilizes unit to be connected and the refrigerating plant that comprises this thermal source unit.
Background technology
Up to now, comprise that the thermal source unit of refrigerating plant of compressor, heat source side heat exchanger etc. is for well-known.The thermal source unit is with constituting refrigerating plant by the unit that utilizes of getting in touch the pipeline connection.This thermal source unit is documented in patent documentation 1 and the patent documentation 2.
Specifically, disclosed air conditioner outdoor unit group in the patent documentation 1 as this thermal source unit.Respectively be provided with a gas side interface and hydraulic fluid side interface in this outdoor unit.The gas side interface is connected with the four-way switching valve of ejection side that is connected to compressor and suction side.The hydraulic fluid side interface is connected with outdoor heat converter.This air conditioner can switch as the cooling operation of operating condition and heats running by switching the four-way switching valve.
Also have, among Fig. 3 of patent documentation 2, put down in writing the outdoor unit that is provided with two gas side interfaces and a hydraulic fluid side interface.In this outdoor unit, a gas side interface is connected with the ejection side of compressor by the ejection pipeline always, and another gas side interface is connected with the suction side of compressor by suction line always.Also have, the hydraulic fluid side interface is connected with the hydraulic fluid side of outdoor heat converter always.The gas side end of outdoor heat converter is connected with the four-way switching valve of ejection side that is connected to compressor and suction side.
And, in the patent documentation 2, put down in writing the air attemperation apparatus that uses this outdoor unit.This air attemperation apparatus comprises a plurality of indoor units, and each indoor units is provided with the BS unit of the operating condition of switching indoor units.The BS unit, the state that the gas line of indoor units is communicated with the ejection pipeline and the gas line of indoor units and the connected state of suction line switched.In this air attemperation apparatus, if the BS unit makes the tracheae of indoor units be communicated with the ejection pipeline of outdoor unit, then the side heat exchanger that utilizes of indoor units becomes condenser and heats running.If the BS unit makes the tracheae of indoor units be communicated with the suction line of outdoor unit, then the side heat exchanger that utilizes of indoor units becomes evaporimeter and carries out cooling operation.This air attemperation apparatus can be selected the operating condition doing cooling operation or heat running, the air attemperation apparatus of just so-called cold, hot two-purpose (cold and hot freedom) at each indoor units.
Yet, in the refrigerating plant, the refrigerating plant that utilizes patent documentation that the switching mechanism (for example four-way switching valve) be arranged on the thermal source unit switches the operating condition of utilizing unit 1 such is arranged, also have to utilize to be included in to be arranged at each and to utilize the such refrigerating plant of patent documentation that the switching mechanism in the BS unit in the unit switches the operating condition of utilizing unit 2.Thermal source unit in the patent documentation 1 because have only a gas side interface, can't be applied to the latter's refrigerating plant.Also have, the thermal source unit in the patent documentation 2 is not because be provided with the switching mechanism that switches the operating condition of utilizing unit, so can't be applied to the former refrigerating plant yet on the heat source side loop.
And, if will constitute the thermal source unit that the refrigerating plant that can either be applied to the former can be applied to the latter's refrigerating plant again, then just become for example such formation of Figure 13.In the heat source side loop 12 of the thermal source unit 10 of this Figure 13, be provided with 32,33 and hydraulic fluid side interfaces 34 of two gas side interfaces.One of them gas side interface 32 is communicated with the suction side of compressor 14 always, another gas side interface 33 selectively with the ejection side of compressor 14 and suction side in one of be communicated with.Also have, hydraulic fluid side interface 34 is communicated with the hydraulic fluid side of outdoor heat converter 15 always.The gas side of outdoor heat converter 15, selectively with the ejection side of compressor 14 and suction side in one of be communicated with.If will utilize unit 7 as Figure 13 (a), to be connected in this thermal source unit 10, just constitute the former refrigerating plant 5.Also have,, just constitute the latter's refrigerating plant 5 if will utilize unit 7 as Figure 13 (b), to be connected in this thermal source unit 10.
At this, used in the refrigerating plant of this thermal source unit, utilizing the unit side to need under the situation of bigger cooling capacity or heating efficiency, for example utilizing machine to organize a performance many situations of number etc. down, utilizing the utilizing in the side heat exchanger of unit, with regard to regard to needed heat exchange amount, only depend on the heat source side heat exchanger of thermal source unit just can't guarantee enough heat exchange amounts sometimes.Under these circumstances, just can not carry out appropriate freeze cycle and make efficiency coefficient (COP) become lower.Therefore, be connected on the refrigerant loop, just can solve such problem by the auxiliary unit that will be provided with secondary unit.As shown in figure 14, utilize unit 7,7 ... side needs under the big situation of heating efficiency, just will assist unit 50 to be connected to become in adding heat run and make secondary unit 52 and heat source side heat exchanger 15 become the state of evaporimeter together.Also have, as shown in figure 15, utilize unit 7,7 ... side needs under the big situation of cooling capacity, just will assist unit 50 to be connected to become in the cooling running and make secondary unit 52 and heat source side heat exchanger 15 become the state of condenser together.
Patent documentation 1: Japanese publication communique spy opens the 2006-078087 communique
Patent documentation 2: Japanese publication communique spy opens flat 11-241844 communique
But, in the thermal source unit of prior art, fail auxiliary unit is connected in the refrigerating plant of using this thermal source unit in adding the mode that heat run and cooling running both sides use this auxiliary unit.Specifically, if correspondence adds heat run auxiliary unit is set, supply with the secondary unit of auxiliary unit in the time of just cooling can't being turned round from the cold-producing medium of compressor ejection, so secondary unit can not become condenser.Also have, if corresponding cooling running is provided with auxiliary unit, just can't be when adding heat run by the suction side of the cold-producing medium importing compressor of the secondary unit evaporation of auxiliary unit, so secondary unit can not become evaporimeter.
Summary of the invention
The present invention invents in view of described each point, its purpose is: be at the thermal source unit that can be applied to any refrigerating plant in ' utilization is arranged on the refrigerating plant that the switching mechanism in the thermal source unit switches the operating condition of utilizing unit ' and ' utilization is included in and is arranged at the refrigerating plant that each utilizes the switching mechanism in the switching unit in the unit that the operating condition of utilizing unit is switched ', and formation can be connected with secondary unit on this thermal source unit and make it and add the thermal source unit of heat run both sides' auxiliary unit corresponding to the cooling running.
-for the method that solves the prior art problem-
The invention of first aspect is that the thermal source unit 10 with the refrigerating plant that comprises heat source side loop 12 is an object, has connected compressor 14 and heat source side heat exchanger 15 in this heat source side loop 12.In the heat source side loop 12 of described thermal source unit 10, be provided with: the first gas side interface 31 that becomes first gas line, 25 ends that always are communicated with the ejection side of described compressor 14, become the second gas side interface 32 of second gas line, 26 ends that always are communicated with the suction side of described compressor 14, become the 3rd gas side interface 33 of the 3rd gas line 27 ends that are communicated with one of described first gas line 25 and second gas line 26 selectively, become the hydraulic fluid side interface 34 of liquid line 28 ends that always are communicated with the end, hydraulic fluid side of described heat source side heat exchanger 15, the state that is communicated with the ejection side of described compressor 14 in the gas side end that makes described heat source side heat exchanger 15, and first switching mechanism 17 that switches between the two states of the state that is communicated with the suction side of this compressor 14 of the gas side end that makes described heat source side heat exchanger 15, and, at the state that described the 3rd gas line 27 is communicated with described first gas line 25, and make second switching mechanism 18 that switches between the two states of the state that described the 3rd gas line 27 is communicated with described second gas line 26.
The invention of second aspect is the thermal source unit 10 that comprises the described refrigerating plant 5 of the invention of first aspect, be linked in sequence the mechanism of decompressor 41 from the end, hydraulic fluid side and utilize the refrigerating plant that utilizes unit 75 that utilizes side loop 8 of side heat exchanger 40 with having, the 3rd gas side interface 33 in the heat source side loop 12 of described thermal source unit 10 is connected with the described gas side end of side loop 8 that utilizes, and hydraulic fluid side interface 34 and this in this heat source side loop 12 utilize the end, hydraulic fluid side of side loop 8 be connected constitute refrigerant loop 9, in this refrigerant loop 9, carry out steam compressed freeze cycle.
The invention of the third aspect is in the invention of described second aspect, comprise and have secondary unit 52, first connector 56 that is communicated with the end, hydraulic fluid side of described secondary unit 52 always, second connector 57 that is communicated with the gas side end of described secondary unit 52 and the 3rd connector 58 selectively, with the state that the gas side end with described secondary unit 52 is communicated with described second connector 57, and the auxiliary unit 50 of the auxiliary switching mechanism 54 that switches between the two states of the state that the gas side end of described secondary unit 52 is communicated with described the 3rd connector 58, in described refrigerant loop 9, described first connector 56 is connected with the hydraulic fluid side interface in described heat source side loop 12, described second connector 57 is connected with the first gas side interface 31 in described heat source side loop 12, and described the 3rd connector 58 is connected with the second gas side interface 32 in described heat source side loop 12.
The invention of fourth aspect be described second or the invention of the third aspect in, comprise a plurality of described units 7 that utilize, and in described refrigerant loop 9, a plurality of side loops 8 that utilize are parallel to heat source side loop 12.
The invention of the 5th aspect is in the invention of described fourth aspect, comprise having being arranged at described a plurality of the utilization in the unit 7 respectively the switching unit 60 of the operating condition switching mechanism 63,64 that the two states of the state that state that the gas side end that utilizes side loop 8 that will respectively utilize unit 7 is communicated with the described second gas side interface 32 and the gas side end that utilizes side loop 8 that will respectively utilize unit 7 are communicated with described the 3rd gas side interface 33 switches.
-effect-
In the invention of first aspect, the heat source side loop 12 of thermal source unit 10 comprises 31,32,33 and hydraulic fluid side interfaces 34 of three gas side interfaces.The first gas side interface 31 is communicated with the ejection side of described compressor 14 always.The second gas side interface 32 is communicated with the suction side of described compressor 14 always.By the switching of second switching mechanism 18, the two states of the state that is communicated with second gas line 26 to state that the 3rd gas side interface 33 is communicated with described first gas line 25 with the 3rd gas side interface 33 switches.Hydraulic fluid side interface 34 is communicated with the end, hydraulic fluid side of described heat source side heat exchanger 15 always.By the switching of first switching mechanism 17, the two states of state that the gas side end with heat source side heat exchanger 15 is communicated with the ejection side of described compressor 14 and state that the gas side end of heat source side heat exchanger 15 is communicated with the suction side of this compressor 14 switches.That is to say, being arranged on 17 pairs of switching mechanisms in the thermal source unit 10 for utilization utilizes the refrigerating plant 5 that the operating condition of unit 7 switches and utilizes to be included in and be arranged at the refrigerating plant 5 that each utilizes 63,64 pairs of switching mechanisms in the unit 60 in the unit 7 to utilize the operating condition of unit 7 to switch, this thermal source unit 10 is on the formation of the thermal source unit 10 as shown in figure 13 that can be applied to one kind of refrigerating plant, has increased by the first gas side interface 31 that always is communicated with the ejection side of compressor 14 again.
In the invention of second aspect, in the thermal source unit 10 of refrigerating plant 5, the 3rd gas side interface 33 in the heat source side loop 12 of described thermal source unit 10 is connected with the described gas side end that utilizes side loop 8 and the hydraulic fluid side interface 34 in this heat source side loop 12 utilizes the end, hydraulic fluid side of side loop 8 to be connected with this.In this refrigerating plant 5, under the situation that switching unit 60 described later is not set, utilize the operating condition of unit 7 to switch by first switching mechanism 17 and 18 pairs of second switching mechanisms.Specifically, second switching mechanism 18 makes the 3rd gas line 27 be communicated with second gas line 26 if first switching mechanism 17 makes the gas side end of heat source side heat exchanger 15 be communicated with the ejection side of compressor 14, and then carrying out heat source side heat exchanger 15 becomes condenser and utilize side heat exchanger 40 to become the cooling running of evaporimeter.Also have, if first switching mechanism 17 makes the gas side end of heat source side heat exchanger 15 be communicated with the suction side of compressor 14 and second switching mechanism 18 makes the 3rd gas line 27 be communicated with first gas line 25, then utilize side heat exchanger 40 to become the heat run that adds that condenser and heat source side heat exchanger 15 become evaporimeter again.
In the invention of the third aspect, refrigerating plant 5 comprises auxiliary unit 50.In the auxiliary unit 50, by the switching of secondary unit 52, the two states of state that the gas side end with described secondary unit 52 is communicated with described second connector 57 and state that the gas side end of described secondary unit 52 is communicated with described the 3rd connector 58 switches.Therefore, in the refrigerating plant 5 of the invention of the third aspect, by the switching of auxiliary switching mechanism 54, to the first gas side interface, 31 connected states in the gas side end of secondary unit 52 and the described heat source side loop 12 that is connected described second connector 57 with the gas side end of secondary unit 52 is switched with the two states of the second gas side interface, 32 connected states in the described heat source side loop 12 that is connected described the 3rd connector 58.
In the invention of fourth aspect, refrigerating plant 5 comprises a plurality of described units 7 that utilize.Utilize the side loop 8 that utilizes of unit 7 to be parallel to heat source side loop 12.Respectively utilize the gas side end of unit 7 to be connected, respectively utilize the end, hydraulic fluid side of unit 7 to be connected with hydraulic fluid side interface 34 with the 3rd gas side interface 33.
In the invention of the 5th aspect, be arranged on the operating condition switching mechanism 63,64 in the switching unit 60 that respectively utilizes unit 7, the two states of the state that state that the gas side end that utilizes side loop 8 that will respectively utilize unit 7 is communicated with the described second gas side interface 32 and the gas side end that utilizes side loop 8 that will respectively utilize unit 7 are communicated with described the 3rd gas side interface 33 switches.If operating condition switching mechanism 63,64 makes the gas side end that utilizes side loop 8 be communicated with the second gas side interface 32, then this utilizes side loop 8 to become evaporimeter to cool off running.Specifically, in utilizing side loop 8, import chilled cold-producing medium in heat source side heat exchanger 15 through hydraulic fluid side interface 34.Import to the cold-producing medium that utilizes in the side loop 8, in utilizing side heat exchanger 40, turn back to the suction side of compressor 14 after the evaporation through the second gas side interface 32.If operating condition switching mechanism 63,64 makes the gas side end that utilizes side loop 8 be communicated with the 3rd gas side interface 33, then carry out this and utilize side loop 8 to become the heat run that adds of condenser.Specifically, the cold-producing medium that sprays from compressor 14 imports to through the 3rd gas side interface 33 and utilizes the side loop 8.Import to the cold-producing medium that utilizes in the side loop 8, in utilizing side heat exchanger 40, import in the heat source side heat exchanger 15 through hydraulic fluid side interface 34 after the condensation, be inhaled into compressor 14 after the evaporation there.The invention of the 5th aspect is that thermal source unit 10 in the invention of first aspect is applied to utilize to be included in and is arranged at each and utilizes 63,64 pairs of switching mechanisms in the unit 60 in the unit 7 to utilize in the refrigerating plant 5 that the operating condition of unit 7 switches.
The effect of-invention-
Among the present invention, be to be arranged on 17 pairs of switching mechanisms in the thermal source unit 10 for utilization to utilize the refrigerating plant 5 that the operating condition of unit 7 switches and utilize and be included in the refrigerating plant 5 that 63,64 pairs of switching mechanisms being arranged in each unit that utilizes unit 7 60 utilize the operating condition of unit 7 to switch, thermal source unit 10 is to be applied to having increased by the first gas side interface 31 that always is communicated with the ejection side of compressor 14 again on the formation of a kind of thermal source unit 10 as shown in figure 13 of refrigerating plant wherein.In this thermal source unit 10, if second switching mechanism 18 makes the 3rd gas side interface 33 be communicated with first gas line 25, then the 3rd gas side interface 33 becomes the interface of the cold-producing medium of outflow after the compression of compressor 14 ejection, hydraulic fluid side interface 34 becomes the interface of inflow at heat source side thermal source unit 15 vaporized condensed liquid refrigerants, and the second gas side interface 32 becomes inflow sucks the cold-producing medium after evaporating from compressor 14 interface.On the other hand, if second switching mechanism 18 makes the 3rd gas side interface 33 be communicated with second gas line 26, then hydraulic fluid side interface 34 becomes the interface of outflow at heat source side heat exchanger 15 condensed liquid refrigerants, the second gas side interface 32 becomes and flows into the interface that compressor 14 sucks the cold-producing medium after the evaporation, and the first gas side interface 31 becomes the interface of the cold-producing medium of outflow after the compression of compressor 14 ejections.
And, for example, as shown in Figure 5, the gas side end that utilizes side loop 8 is connected with the 3rd gas side interface 33 and when will utilize the end, hydraulic fluid side of side loop 8 to be connected with hydraulic fluid side interface 34, if will assist the end, hydraulic fluid side of the secondary unit 52 of unit 50 to be connected and the gas side end of secondary unit 52 will be connected with the first gas side interface 31 or the second gas side interface 32 selectively with hydraulic fluid side interface 34, then at second switching mechanism 18 with under the 3rd gas side interface 33 and the state that first gas line 25 is communicated with, be supplied to through the 3rd gas side interface 33 and utilize side heat exchanger 40 to become condenser to add heat run from the cold-producing medium of compressor 14 ejections.And, if this adds in the heat run and is utilizing side heat exchanger 40 chilled cold-producing mediums to be imported into secondary unit 52, the cold-producing medium that has then imported flows into heat source side loops 12 and is sucked by compressor 14 from the second gas side interface 32 in secondary unit 52 evaporation backs.Also have, under second switching mechanism 18 makes the 3rd gas side interface 33 and state that second gas line 26 is communicated with, be supplied to utilizing side heat exchanger 40 to become evaporimeter and cool off running at heat source side heat exchanger 15 chilled liquid refrigerants through hydraulic fluid side interface 34.If will be through the cold-producing medium importing secondary unit 52 of the first gas side interface 31 from compressor 14 ejections in this cooling running, then the cold-producing medium of Dao Ruing utilizes side heat exchanger 40 with being imported at heat source side heat exchanger 15 chilled liquid refrigerants after secondary unit 52 condensations.Import to the cold-producing medium that utilizes in the side heat exchanger 40 and evaporate in utilizing side heat exchanger 40, the low pressure refrigerant after the evaporation flows into heat source side loops 12 and is sucked by compressor 14 from the 3rd gas side interface 33.
Like this, the gas side end of the secondary unit 52 by will assisting unit 50 selectively is connected with the second gas side interface 32 with the first gas side interface 31, just can when adding heat run, will import compressor 14 from the low-pressure refrigerant gas of the secondary unit 52 that becomes evaporimeter, also can when cooling off running, supply with high-pressure gas refrigerant to the secondary unit 52 that becomes condenser through the first gas side interface 31 by the second gas side interface 32.Therefore, just can corresponding cooling running and add the heat run both sides and use auxiliary unit 50.That is to say, thermal source unit 10 of the present invention can corresponding cooling running with add the heat run both sides and be connected auxiliary unit 50.
Also have, in the invention of the described third aspect, the gas side end with secondary unit 52 is connected with the first gas side interface 31 or the second gas side interface 32 selectively.Therefore, as mentioned above, just can when adding heat run, will import compressor 14 from the low-pressure refrigerant gas of the secondary unit 52 that becomes evaporimeter, also can when cooling off running, supply with high-pressure gas refrigerant to the secondary unit 52 that becomes condenser by the first gas side interface 31 by the second gas side interface 32.The auxiliary unit 50 of this third aspect invention is no matter in the cooling running or add can connect into refrigerating plant 5 in the heat run and make and need carry out the auxiliary heat switching motion in secondary unit 52 at the heat exchange amount in the heat source side heat exchanger 15.
Description of drawings
Fig. 1 is the summary pie graph of the related outdoor unit of embodiment.
Fig. 2 has been to use the summary pie graph of air attemperation apparatus of first embodiment of the related outdoor unit of embodiment.
Fig. 3 is the summary pie graph that is illustrated in the action when carrying out cooling operation in the air attemperation apparatus of first embodiment that has used the related outdoor unit of embodiment.
Fig. 4 is the summary pie graph that is illustrated in the action when heating running in the air attemperation apparatus of first embodiment that has used the related outdoor unit of embodiment.
Fig. 5 has been to use the summary pie graph of air attemperation apparatus of second embodiment of the related outdoor unit of embodiment.
Fig. 6 is the summary pie graph that is illustrated in the action when carrying out cooling operation in the air attemperation apparatus of second embodiment that has used the related outdoor unit of embodiment.
Fig. 7 is the summary pie graph that is illustrated in the action when heating running in the air attemperation apparatus of second embodiment that has used the related outdoor unit of embodiment.
Fig. 8 has been to use the summary pie graph of air attemperation apparatus of the 3rd embodiment of the related outdoor unit of embodiment.
Fig. 9 is the summary pie graph that is illustrated in the action when carrying out cooling operation in the air attemperation apparatus of the 3rd embodiment that has used the related outdoor unit of embodiment.
Figure 10 is the summary pie graph that is illustrated in the action when heating running in the air attemperation apparatus of the 3rd embodiment that has used the related outdoor unit of embodiment.
Figure 11 is the summary pie graph that is illustrated in the action when carrying out cooling operation in the air attemperation apparatus of the 3rd embodiment that has used the related outdoor unit of embodiment.
Figure 12 is the summary pie graph of the related air attemperation apparatus of other embodiments.
Figure 13 is the summary pie graph of refrigerating plant that comprises the thermal source unit of prior art; Figure 13 (a) is the summary pie graph that constitutes under the situation of the refrigerating plant in front that background technology puts down in writing; Figure 13 (b) is the summary pie graph that constitutes under the situation of the refrigerating plant in back that background technology puts down in writing.
Figure 14 is on the refrigerating plant of the thermal source unit of having used prior art, and correspondence heats the summary pie graph that running connects the situation of auxiliary unit.
Figure 15 is on the refrigerating plant of the thermal source unit of using prior art, and corresponding cooling operation connects the summary pie graph of the situation of auxiliary unit.
-symbol description-
5 air attemperation apparatus (refrigerating plant)
7 indoor units (utilizing unit)
8 indoor loops (utilizing side loop)
9 refrigerant loops
10 outdoor units (thermal source unit)
12 outdoor loops (heat source side loop)
14 compressors
15 outdoor heat converters (heat source side heat exchanger)
17 first four-way switching valves (first switching mechanism)
18 second four-way switching valves (second switching mechanism)
25 first gas lines
26 second gas lines
27 the 3rd gas lines
28 liquid lines
31 first gas side interfaces
32 second gas side interfaces
33 second gas side interfaces
34 hydraulic fluid side interfaces
40 indoor heat converters (utilizing the side heat exchanger)
41 mechanisms of decompressor (indoor expansion valve)
50 auxiliary units
52 secondary units
54 auxiliary switching mechanisms
56 first connectors
57 second connectors
58 the 3rd connectors
63 first magnetic valves (operating condition switching mechanism)
64 second magnetic valves (operating condition switching mechanism)
The specific embodiment
Below, describe embodiments of the present invention with reference to the accompanying drawings in detail.
(formation of outdoor unit)
The related outdoor unit 10 of present embodiment constitutes the thermal source unit of refrigerating plant involved in the present invention.This outdoor unit 10 is connected with utilizing unit 7 by gas side contact pipeline 20 and hydraulic fluid side contact pipeline 21.
As shown in Figure 1, outdoor unit 10 is provided with the outdoor loop 12 in heat source side loop.Connecting compressor 14, outdoor heat converter 15, outdoor expansion valve 16, the first four-way switching valve 17 and the second four-way switching valve 18 in the outdoor loop 12.The first four-way switching valve 17 constitutes first switching mechanism, and the second four-way switching valve 18 constitutes second switching mechanism.Also have, outdoor unit 10 is provided with the first gas side interface 31, the second gas side interface 32 and hydraulic fluid side interface 34.
First interface of the second four-way switching valve 18 is connected with second gas line 26.Sealed second interface of the second four-way switching valve 18.The 3rd interface of the second four-way switching valve 18 is connected with first gas line 25.The 4th interface of the second four-way switching valve 18 is connected with the 3rd gas side interface 33 by the 3rd gas line 27.
The first four-way switching valve 17 and the second four-way switching valve 18 can switch to respectively that first interface and second interface are interconnected and first state (state shown in the solid line among Fig. 1) and first interface that the 3rd interface and the 4th interface are interconnected and the 4th interface is interconnected and second interface and the 3rd interface are interconnected second state (state shown in the dotted line among Fig. 1).In addition, can also replace each four- way switching valve 17,18 to constitute first switching mechanism 17 or second switching mechanism 18 with three-way diverter valve.Also have, can constitute first switching mechanism 17 or second switching mechanism 18 with two magnetic valves.
(formation of refrigerating plant and action)
Below, just use the refrigerating plant 5 of three embodiments of outdoor unit 10 involved in the present invention, their formation and running action are described respectively.
(refrigerating plant of first embodiment)
The refrigerating plant 5 of first embodiment is the air attemperation apparatus that heats running 5 that can cool off the cooling operation of running or add heat run.As shown in Figure 2, this air attemperation apparatus 5, be with respect to outdoor unit 10 be arranged in parallel many indoor units 7a, 7b ....In addition, the platform number of indoor units 7 also can be one.
In each indoor units 7, be respectively arranged with indoor loop 8.In the indoor loop 8, be provided with indoor heat converter 40 and indoor expansion valve 41 in order.Indoor heat converter 40 is made of the cross pipe plate heat exchanger.Indoor expansion valve 41 is to be made of electric expansion valve.
The gas side end in each indoor loop 8 is connected with the 3rd gas side interface 33 of outdoor unit 10 by gas side contact pipeline 20.The end, hydraulic fluid side in each indoor loop 8 is connected with the hydraulic fluid side interface 34 of outdoor unit 10 by hydraulic fluid side contact pipeline 21.In this air attemperation apparatus 5, outdoor loop 12 and indoor loop 8a, 8b ... connect by gas side contact pipeline 20 and hydraulic fluid side contact pipeline 21, thus, constitute the refrigerant loop 9 that carries out steam compressed freeze cycle.
-running action-
Below, the running action of the air attemperation apparatus 5 of first embodiment is described.In addition, in this air attemperation apparatus 5, carry out cooling operation and heat still that running is to be regulated by the first four-way switching valve 17 of outdoor unit 10 and the second four-way switching valve 18.If the first four-way switching valve 17 and the second four-way switching valve 18 are set at the cooling operation state, all then on-stream indoor units 7 are carried out cooling operation, and heating operating condition if the first four-way switching valve 17 and the second four-way switching valve 18 are set at, all then on-stream indoor units 7 heat running.
(cooling operation)
As shown in Figure 3, in the cooling operation, the first four-way switching valve 17 is set at first state, and the second four-way switching valve 18 is set at second state.And, if make compressor 14 running in this state, just carry out in refrigerant loop 9 then that outdoor heat converter 15 becomes condenser and indoor heat converter 40 becomes the steam compressed freeze cycle of evaporimeter.
Specifically, the cold-producing medium from compressor 14 ejections carries out heat exchange and condensation with outdoor air outdoor heat converter 15.In outdoor heat converter 15 chilled cold-producing medium be assigned to each indoor loop 8a, 8b ....The cold-producing medium that flows into indoor loop 8 is depressurized the back in indoor expansion valve 41 carries out heat exchange with room air and evaporates in indoor heat converter 40.Vaporized cold-producing medium flows into outdoor loop 12 in indoor heat converter 40, thereby is inhaled into compressor 14 and compresses.
(heating running)
As shown in Figure 4, heat in the running, the first four-way switching valve 17 is set at second state, and the second four-way switching valve 18 is set at first state.And, if make compressor 14 running in this state, just carry out in refrigerant loop 9 then that indoor heat converter 40 becomes condenser and outdoor heat converter 15 becomes the steam compressed freeze cycle of evaporimeter.
Specifically, from the cold-producing medium of compressor 14 ejection be assigned to each indoor loop 8a, 8b ....In each indoor loop 8, the cold-producing medium of inflow carries out heat exchange and condensation with room air in indoor heat converter 40.The cold-producing medium that has been condensed in indoor heat converter 40 flows into outdoor loop 12.The cold-producing medium that has flowed into outdoor loop 12 carries out heat exchange and evaporates at outdoor heat converter 15 and outdoor air after outdoor expansion valve 60 is depressurized.Be inhaled into compressor 14 and compress at outdoor heat converter 15 vaporized cold-producing mediums.
(refrigerating plant of second embodiment)
As shown in Figure 5, the air attemperation apparatus 5 of second embodiment is to have set up auxiliary unit 50 again on the formation of the air attemperation apparatus 5 of described first embodiment.Auxiliary unit 50 is arranged on outdoor with outdoor unit 10.In addition, the platform number of auxiliary unit 50 can also be many.
Has auxiliary unit loop 51 in the auxiliary unit 50.In the auxiliary unit loop 51, be provided with secondary unit 52, expansion valve 53 and four-way switching valve 54.Also have, auxiliary unit 50 is provided with first connector 56, second connector 57 and the 3rd connector 58.
Four-way switching valve 54 can switch between first interface and second interface is interconnected and the 3rd interface and the 4th interface are interconnected first state (the represented state of solid line among Fig. 5) and first interface and the 4th interface is interconnected and second interface and the 3rd interface are interconnected second state (the dotted line state among Fig. 5).If four-way switching valve 54 is set at first state, then become the state that the gas side end of secondary unit 52 is communicated with the 3rd connector 58.If four-way switching valve 54 is set at second state, then become the state that the gas side end of secondary unit 52 is communicated with second connector 57.Like this, four-way switching valve 54 constitutes auxiliary switching mechanism.In addition, can replace four-way switching valve 54 to constitute auxiliary switching mechanism, also can constitute auxiliary switching mechanism with two magnetic valves with three-way diverter valve.
-running action-
Below, the running action of the air attemperation apparatus 5 of second embodiment is described.In this air attemperation apparatus 5, the same with the air attemperation apparatus 5 of described first embodiment, if being set at, the first four-way switching valve 17 and the second four-way switching valve 18 carry out the cooling operation state, then all indoor units 7 are all carried out cooling operation in the running, heat operating condition if the first four-way switching valve 17 and the second four-way switching valve 18 are set at, then all indoor units 7 all heat running in the running.
(cooling operation)
As shown in Figure 6, in the cooling operation, the first four-way switching valve 17 is set at first state, and the second four-way switching valve 18 is set at second state.If make compressor 14 running in this state, carry out in refrigerant loop 9 then that outdoor heat converter 15 becomes condenser and indoor heat converter 40 becomes the steam compressed freeze cycle of evaporimeter.
In addition, wait under the situation that needs big refrigerating capacity at 7 numbers of the indoor units of carrying out cooling operation, the four-way switching valve 54 of auxiliary unit 50 is set at second state more.Under this state, the secondary unit 52 of auxiliary unit 50 becomes condenser with outdoor heat converter 15.And under the less situation of needed refrigerating capacity, the four-way switching valve 54 of auxiliary unit 50 is set first state for.In this case, further set expansion valve 53 and be closed condition.Under this state, do not flow through cold-producing medium in the secondary unit 52 of auxiliary unit 50.This air attemperation apparatus 5 just can carry out suitable freeze cycle according to needed refrigerating capacity by regulating the secondary unit 52 that uses or do not use auxiliary unit 50 always.Thus, this air attemperation apparatus 5 just can turn round under the high state of efficiency coefficient (COP) always.
Below, the mobility status of the secondary unit 52 of auxiliary unit 50 as cold-producing medium under the situation of condenser use is described.In addition, the flowing of the cold-producing medium in outdoor unit 10 and the indoor units 7, since the same with the cooling operation of the air attemperation apparatus 5 of described first embodiment, so omit.
In this cooling operation, flow into auxiliary unit loop 51 from the part of the cold-producing medium of compressor 14 ejection.In auxiliary unit loop 51, the cold-producing medium of inflow carries out with the heat exchange of outdoor air condensation in secondary unit 52.Chilled cold-producing medium is assigned in each indoor loop 8 with chilled cold-producing medium interflow in outdoor heat converter 15 in secondary unit 52.
(heating running)
As shown in Figure 7, heat in the running, the first four-way switching valve 17 is set at second state, and the second four-way switching valve 18 is set at first state.And, if under this state, make compressor 14 running, carry out in refrigerant loop 9 then that indoor heat converter 40 becomes condenser and outdoor heat converter 15 becomes the steam compressed freeze cycle of evaporimeter.
In addition, wait under the situation that needs big heating capacity when 7 numbers of the indoor units that heats running, the four-way switching valve 54 of auxiliary unit 50 is set at first state more.Under this state, the secondary unit 52 of auxiliary unit 50 becomes evaporimeter with outdoor heat converter 15.And under the less situation of needed refrigerating capacity, the four-way switching valve 54 of auxiliary unit 50 is set second state for.In this case, further set expansion valve 53 and be closed condition.Under this state, do not flow through cold-producing medium in the secondary unit 52 of auxiliary unit 50.This air attemperation apparatus 5 just can carry out suitable freeze cycle according to needed heating capacity by regulating the secondary unit 52 that uses or do not use auxiliary unit 50 always.Thus, this air attemperation apparatus 5 just can turn round under the high state of efficiency coefficient (COP) always.
Below, the mobility status of the secondary unit 52 of auxiliary unit 50 for cold-producing medium under the situation of evaporimeter use is described.In addition, the flowing of the cold-producing medium in outdoor unit 10 and the indoor units 7, since the same with the cooling operation of the air attemperation apparatus 5 of described first embodiment, so omit.
In this cooling operation, the part of chilled cold-producing medium flows into auxiliary unit loop 51 in indoor heat converter 40.In auxiliary unit loop 51, in secondary unit 52, carry out heat exchange again after the cold-producing medium of inflow reduces pressure and evaporate in expansion valve 53 with outdoor air.Vaporized cold-producing medium flows into outdoor loop 12 in secondary unit 52, is inhaled into compressor 14 with chilled cold-producing medium in outdoor heat converter 15 after collaborating.
(refrigerating plant of the 3rd embodiment)
In the air attemperation apparatus 5 of the 3rd embodiment, can select each indoor units 7a, 7b ... carry out cooling operation or heat running, just the air attemperation apparatus 5 of so-called cold, hot two-purpose.As shown in Figure 8, in this air attemperation apparatus 5, a plurality of indoor units 7a, 7b ... be to be parallel to outdoor unit 10, each indoor units 7a, 7b ... in be provided with BS unit 60a, 60b ....Each BS unit 60a, 60b ... constitute and switch unit.In addition, among Fig. 8, omitted the first indoor units 7a and second indoor units 7b indoor units in addition.
Each BS unit 60a, 60b ... in, be respectively arranged with loop, hydraulic fluid side 61a, 61b ... and gas side loop 62a, 62b ....Loop, hydraulic fluid side 61a, 61b ... an end on be connected with from the hydraulic fluid side contact pipeline 21 that the hydraulic fluid side interface 34 of outdoor unit 10 prolongs.Loop, hydraulic fluid side 61a, 61b ... the other end on be connected with the refrigerant piping of the end, hydraulic fluid side that is connected indoor loop 8.
This air attemperation apparatus 5 is assisted unit 50 with air attemperation apparatus 5 the same being provided with of described second embodiment.First connector 56 of auxiliary unit 50 is got in touch pipeline 21 with the hydraulic fluid side and is connected.Second connector 57 is connected with the first gas side interface 31 of outdoor unit 10.The 3rd connector 58 is got in touch pipeline 20b with second gas side and is connected.
-running action-
Below, the running action of the air attemperation apparatus 5 of the 3rd embodiment is described.In this air attemperation apparatus 5, at cooling operation, heat beyond the running, can also there be indoor units 7 of carrying out cooling operation and the indoor units 7 that heats running simultaneously, the heat run of freezing.
(cooling operation)
As shown in Figure 9, in the cooling operation, the second four-way switching valve 18 of outdoor unit 10 is set to second state.In auxiliary unit 50, four-way switching valve 54 is set at second state.Also have, in each BS unit 60, first magnetic valve 63 is set to closed condition, and second magnetic valve 64 is set to opening state.And if make compressor 14 running in this state, then the secondary unit 52 of auxiliary unit 50 becomes condenser and indoor heat converter 40 becomes evaporimeter and carries out steam compressed freeze cycle in refrigerant loop 9.
In addition, under the situation of required big refrigerating capacities such as 7 numbers of the indoor units of carrying out cooling operation are many, the first four-way switching valve 17 of outdoor unit 10 is set at first state.Under this state, outdoor heat converter 15 becomes condenser with the secondary unit 52 of auxiliary unit 50.Under the less situation of needed refrigerating capacity, the first four-way switching valve 17 is set second state for.In this case, further set outdoor expansion valve 16 and be closed condition.Under this state, do not flow through cold-producing medium in the outdoor heat converter 15.This air attemperation apparatus 5 just can carry out suitable freeze cycle according to needed refrigerating capacity by regulating use or not using outdoor heat converter 15 always.Thus, this air attemperation apparatus 5 just can turn round under the high state of efficiency coefficient (COP) always.
Below, illustrate with outdoor heat converter 15 flowing as cold-producing medium under the situation of condenser use.
In this cooling operation, flow into auxiliary unit loop 51 through second connector 57 of auxiliary unit 50 from the part of the cold-producing medium of compressor 14 ejection.The cold-producing medium that flows into auxiliary unit loop 51 carries out heat exchange and condensation with outdoor air in secondary unit 52.Also have, outdoor heat converter 15, carry out heat exchange and condensation with outdoor air from the remaining part of cold-producing medium of compressor 14 ejections.Chilled cold-producing medium and chilled cold-producing medium interflow in the secondary unit 52 of auxiliary unit 50 in outdoor heat converter 15.
The condensed cold-producing medium that has collaborated is assigned to each indoor loop 8.Distribute the loop, hydraulic fluid side 61 of the cold-producing medium process BS unit 60 that comes to flow into indoor loop 8.In indoor heat converter 40, carry out heat exchange again after the cold-producing medium that has flowed into indoor loop 8 reduces pressure and evaporate in indoor expansion valve 41 with room air.Vaporized cold-producing medium is sucked by compressor 14 through second pipe arrangement in the gas side loop 62 of BS unit 60 etc. in indoor heat converter 40.
(heating running)
As shown in figure 10, heat in the running, the second four-way switching valve 18 of outdoor unit 10 is set at first state.In the auxiliary unit 50, four-way switching valve 54 is set at first state.Also have, in the BS unit 60, first magnetic valve 63 is set at opening state, and second magnetic valve 64 is set at closing state.And if make compressor 14 running in this state, then indoor heat converter 40 becomes condenser and the secondary unit 52 of auxiliary unit 50 becomes evaporimeter and carries out steam compressed freeze cycle in refrigerant loop 9.
In addition, under required situations than big heating capacity such as 7 numbers of the indoor units that heats running are many, the first four-way switching valve 17 of outdoor unit 10 is set at second state.Under this state, outdoor heat converter 15 becomes evaporimeter with the secondary unit 52 of auxiliary unit 50.Under the less situation of needed heating capacity, the first four-way switching valve 17 is set first state for.In this case, outdoor expansion valve 16 is set at closed condition.Under this state, do not flow through cold-producing medium in the outdoor heat converter 15.This air attemperation apparatus 5 just can carry out suitable freeze cycle according to needed refrigerating capacity by regulating use or not using outdoor heat converter 15 always.Thus, this air attemperation apparatus 5 just can turn round under the high state of efficiency coefficient (COP) always.
Below, illustrate with outdoor heat converter 15 flowing as cold-producing medium under the situation of evaporimeter use.
This heats in the running, and the cold-producing medium that sprays from compressor 14 is assigned to each indoor loop 8.Distribute first pipe arrangement in the gas side loop 62 of the cold-producing medium process BS unit 60 that comes to flow into indoor loop 8.The cold-producing medium that has flowed into indoor loop 8 carries out heat exchange and condensation with room air in indoor heat converter 40.
The part of chilled cold-producing medium flows into auxiliary unit loop 51 in indoor heat converter 40.Flow into and in secondary unit 52, carry out again evaporating after the cold-producing medium of assisting unit loop 51 reduces pressure in expansion valve 53 with the heat exchange of outdoor air.Also have, a cold-producing medium remaining part of having compressed at indoor heat converter 40 flows into outdoor loop 12.In outdoor heat converter 15, carry out heat exchange again after the cold-producing medium that flows into outdoor loop 12 reduces pressure and evaporate in outdoor expansion valve 16 with outdoor air.Chilled cold-producing medium and vaporized cold-producing medium interflow in the secondary unit 52 of auxiliary unit 50 are sucked by compressor 14 in outdoor heat converter 15.
(refrigeration heat run)
The refrigeration heat run is described.And, this explanation just the first indoor units 7a carry out cooling operation and other indoor units 7b ... heat the situation of running.As shown in figure 11, in this refrigeration heat run, the second four-way switching valve 18 of outdoor unit 10 is set at first state.Also have, among the BS unit 60a of the first indoor units 7a, the first magnetic valve 63a is set at closed condition, and the second magnetic valve 64a is set at opening state.BS unit 60b beyond the first indoor units 7a ... in, the first magnetic valve 63b ... be set at opening state, the second magnetic valve 64b ... be set at closed condition.And, if under this state, make compressor 14 runnings, then the indoor units 7b beyond the first indoor units 7a in the refrigerant loop 9 ... indoor heat converter 40b ... become condenser, the indoor heat converter 40a of the first indoor units 7a becomes evaporimeter and carries out steam compressed freeze cycle.
In addition, by regulating the first four-way switching valve 17 and outdoor expansion valve 16, make outdoor heat converter 15 become condenser state, become the state of evaporimeter and become any in the state that does not flow through cold-producing medium.Specifically, if outdoor expansion valve 16 is set at opening state and the first four-way switching valve 17 is set at first state, then outdoor heat converter 15 becomes condenser.If outdoor expansion valve 16 is set at opening state and the first four-way switching valve 17 is set at second state, then outdoor heat converter 15 becomes evaporimeter.If outdoor expansion valve 16 is set at closed condition, then outdoor heat converter 15 becomes the state that does not flow through cold-producing medium.
Also have, by variable expansion valve 53 and four-way switching valve 54, the secondary unit 52 of regulating auxiliary unit 50 becomes the state of condenser, become the state of evaporimeter and do not flow through any one state in the state of cold-producing medium.Specifically, if expansion valve 53 is set at opening state and four-way switching valve 54 is set at second state, then secondary unit 52 becomes condenser.If expansion valve 53 is set at opening state and four-way switching valve 54 is set at first state, then secondary unit 52 becomes evaporimeter.If expansion valve 53 is set at closed condition, then secondary unit 52 becomes the state that does not flow through cold-producing medium.
In this air attemperation apparatus 5, according to needed refrigerating capacity and heating capacity, suitably regulate the four-way switching valve 54 and the expansion valve 53 of the first four-way switching valve 17, outdoor expansion valve 16, auxiliary unit 50, just can conditioning chamber outer heat-exchanger 15 and assist the user mode of the secondary unit 52 of unit 50.Thus, this air attemperation apparatus 5 just can turn round under the high state of efficiency coefficient (COP) always.
Below, the secondary unit 52 that outdoor heat converter 15 and auxiliary unit 50 be described becomes the mobility status of cold-producing medium under the situation of condenser.
In this refrigeration heat run, be assigned to from the cold-producing medium of compressor 14 ejection indoor loop 8b beyond the indoor loop 8a of the first indoor units 7a ....Each indoor loop 8b ... in, the cold-producing medium of inflow indoor heat converter 40b ... in carry out heat exchange and condensation with room air.Indoor heat converter 40b ... in chilled cold-producing medium distribute to the indoor loop 8a of outdoor loop 12, auxiliary unit loop 51 and the first indoor units 7a.
The cold-producing medium that flows into outdoor loop 12 carries out heat exchange with outdoor air again and evaporates in outdoor heat converter 15 after outdoor expansion valve 16 decompressions.In secondary unit 52, carry out heat exchange again after the cold-producing medium that flows into auxiliary unit loop 51 reduces pressure and evaporate in expansion valve 53 with outdoor air.In indoor heat converter 40a, carry out heat exchange again after the cold-producing medium that flows into the indoor loop 8a of the first indoor units 7a reduces pressure and evaporate in indoor expansion valve 41a with room air.And, in outdoor heat converter 15 vaporized cold-producing medium, in the secondary unit 52 of auxiliary unit 50 vaporized cold-producing medium and in the indoor heat converter 40a of the first indoor units 7a back, vaporized cold-producing medium interflow sucked by compressor 14.
The effect of-embodiment-
In this embodiment, being arranged on 17 pairs of switching mechanisms in the thermal source unit 10 for utilization utilizes the refrigerating plant 5 that the operating condition of unit 7 switches and utilizes to be included in and be arranged at the refrigerating plant 5 that each utilizes 63,64 pairs of switching mechanisms in the unit 60 in the unit 7 to utilize the operating condition of unit 7 to switch, this thermal source unit 10 is on the formation of the thermal source unit 10 that can be applied to one kind of refrigerating plant, has increased by the first gas side interface 31 that always is communicated with the ejection side of compressor 14 again.
And, if the refrigerating plant 5 of picture second embodiment, or the refrigerating plant 5 of the 3rd embodiment is such, the gas side end and the 3rd gas side interface 33 in indoor loop 8 are coupled together, when again the end, hydraulic fluid side in indoor loop 8 and hydraulic fluid side interface 34 being coupled together, if will assist the end, hydraulic fluid side and the hydraulic fluid side interface 34 of the secondary unit 52 of unit 50 to couple together, selectively the gas side end of secondary unit 52 and the first gas side interface 31 or the second gas side interface 32 are coupled together again, then at second switching mechanism 18 with under the 3rd gas side interface 33 and the state that first gas line 25 is communicated with, be supplied to indoor heat converter 40 from the high-pressure refrigerant of compressor 14 ejection through the 3rd gas side interface 33, indoor heat converter 40 heats running with regard to becoming condenser.And, chilled cold-producing medium will import secondary unit 52 in indoor heat converter 40 if will heat in the running at this, and then the cold-producing medium of Dao Ruing evaporate in secondary unit 52 afterwards and sucked by compressor 14 from the outdoor loop 12 of the second gas side interface, 32 inflows.Also have, at second switching mechanism 18 with under the 3rd gas side interface 33 and the state that second gas line 26 is communicated with, chilled cold-producing medium is supplied with indoor heat converters 40 through hydraulic fluid side interface 34 in outdoor heat converter 15, and indoor heat converter 40 carries out cooling operation with regard to becoming evaporimeter.And, if will import secondary unit 52 through the first gas side interface 31 by the cold-producing medium from compressor 14 ejections in this cooling operation, then the cold-producing medium of Dao Ruing is imported into indoor heat converter 40 with chilled cold-producing medium in outdoor heat converter 15 after the condensation in secondary unit 52.The cold-producing medium that has imported indoor heat converter 40 evaporates in indoor heat converter 40, and the low pressure refrigerant after the evaporation flows into outdoor loop 12 from the 3rd gas side interface 33 and sucked by compressor 14.
Like this, the gas side end of the secondary unit 52 by will assisting unit 50 is connected with the first gas side interface 31 or the second gas side interface 32 selectively, just can be when heating running will import compressor 14 from the low pressure refrigerant of the secondary unit 52 that becomes evaporimeter by the second gas side interface 32, also just can be by the secondary unit 52 of the first gas side interface 31 when cooling operation with high-pressure refrigerant supply becoming condenser.Therefore, can will assist unit 50 corresponding to cooling operation with heat the running both sides and use.That is to say, the outdoor unit 10 of present embodiment, can corresponding to cooling operation with heat the running both sides be connected with auxiliary unit 50.Also have, the auxiliary unit 50 of present embodiment constitutes at cooling operation and the heat exchange amount that heats in any outdoor heat converter 15 of running and is undertaken by secondary unit 52 is auxiliary.
(other embodiments)
As shown in figure 12, described embodiment, can also be by many outdoor units 10,10 of connection parallel with one another ... constitute air attemperation apparatus 5.
In addition, above embodiment is optimum in essence example, and the present invention has no intention to limit its application thing or limits its purposes scope.
Practicality on the-industry-
In sum, the present invention is for utilizing unit to connect the thermal source unit of refrigerating plant and comprising that the refrigerating plant of this thermal source unit is useful by the contact pipeline.
Claims (4)
1. the thermal source unit of a refrigerating plant comprises heat source side loop (12), has connected compressor (14) and heat source side heat exchanger (15) in this heat source side loop (12), it is characterized in that:
Be provided with in the described heat source side loop (12)
The first gas side interface (31) becomes the end of first gas line (25) that always is communicated with the ejection side of described compressor (14),
The second gas side interface (32) becomes the end of second gas line (26) that always is communicated with the suction side of described compressor (14),
The 3rd gas side interface (33) becomes the end of the 3rd gas line (27) that is communicated with one of described first gas line (25) and second gas line (26) selectively,
Hydraulic fluid side interface (34) becomes the end of the liquid line (28) that always is communicated with the end, hydraulic fluid side of described heat source side heat exchanger (15),
First switching mechanism (17), switch between the two states of state that is communicated with the ejection side of described compressor (14) in gas side end and state that the gas side end of described heat source side heat exchanger (15) is communicated with the suction side of this compressor (14) described heat source side heat exchanger (15)
Second switching mechanism (18) switches between the two states of state that described the 3rd gas line (27) is communicated with described first gas line (25) and state that described the 3rd gas line (27) is communicated with described second gas line (26).
2. refrigerating plant is characterized in that:
Comprise:
Thermal source unit (10), be the described refrigerating plant of claim 1 (5) thermal source unit (10) and
Utilize unit (7), have be linked in sequence the mechanism of decompressor (41) from the end, hydraulic fluid side and utilize side heat exchanger (40) utilize side loop (8), and
Carry out steam compressed freeze cycle in refrigerant loop (9), this refrigerant loop (9) is to be connected with the described gas side end that utilizes side loop (8) and the hydraulic fluid side interface (34) in this heat source side loop (12) utilizes the end, hydraulic fluid side of side loop (8) to be connected with this and constitutes by the 3rd gas side interface (33) in the heat source side loop (12) of described thermal source unit (10).
3. refrigerating plant according to claim 2 is characterized in that:
Comprise auxiliary unit (50), this auxiliary unit (50) has: secondary unit (52); First connector (56), the end, hydraulic fluid side with described secondary unit (52) is communicated with always; Second connector (57) and the 3rd connector (58), the gas side end with described secondary unit (52) is communicated with selectively; Auxiliary switching mechanism (54) switches between the two states of state that is communicated with described second connector (57) in the gas side end with described secondary unit (52) and state that the gas side end of described secondary unit (52) is communicated with described the 3rd connector (58); And
In the described refrigerant loop (9), described first connector (56) is connected with the hydraulic fluid side interface in described heat source side loop (12), described second connector (57) is connected with the first gas side interface (31) in described heat source side loop (12), and described the 3rd connector (58) is connected with the second gas side interface (32) in described heat source side loop (12).
4. according to claim 2 or 3 described refrigerating plants, it is characterized in that:
Comprise a plurality of described units (7) that utilize,
In described refrigerant loop (9), a plurality of side loops (8) that utilize are parallel to heat source side loop (12).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP294729/2006 | 2006-10-30 | ||
| JP2006294729A JP4079184B1 (en) | 2006-10-30 | 2006-10-30 | Refrigeration unit heat source unit and refrigeration unit |
| PCT/JP2007/070655 WO2008053752A1 (en) | 2006-10-30 | 2007-10-23 | Heat source unit for refrigerating apparatus, and refrigerating apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101529169A CN101529169A (en) | 2009-09-09 |
| CN101529169B true CN101529169B (en) | 2011-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800394660A Expired - Fee Related CN101529169B (en) | 2006-10-30 | 2007-10-23 | Heat source unit for refrigerating apparatus, and refrigerating apparatus |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20100319376A1 (en) |
| EP (1) | EP2078905B1 (en) |
| JP (1) | JP4079184B1 (en) |
| KR (1) | KR100989460B1 (en) |
| CN (1) | CN101529169B (en) |
| AU (1) | AU2007315521B2 (en) |
| BR (1) | BRPI0716309A2 (en) |
| ES (1) | ES2574090T3 (en) |
| RU (1) | RU2395044C1 (en) |
| TW (1) | TW200827637A (en) |
| WO (1) | WO2008053752A1 (en) |
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| JP3082752B2 (en) * | 1998-11-04 | 2000-08-28 | ダイキン工業株式会社 | Refrigeration equipment |
| JP3266116B2 (en) | 1998-11-11 | 2002-03-18 | ダイキン工業株式会社 | Air conditioner |
| TWI263025B (en) * | 2002-01-24 | 2006-10-01 | Daikin Ind Ltd | Freezing device |
| KR100499507B1 (en) * | 2003-01-13 | 2005-07-05 | 엘지전자 주식회사 | Multi type air conditioner |
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2007
- 2007-10-23 KR KR1020097009071A patent/KR100989460B1/en not_active IP Right Cessation
- 2007-10-23 AU AU2007315521A patent/AU2007315521B2/en not_active Ceased
- 2007-10-23 CN CN2007800394660A patent/CN101529169B/en not_active Expired - Fee Related
- 2007-10-23 EP EP07830389.8A patent/EP2078905B1/en not_active Not-in-force
- 2007-10-23 ES ES07830389.8T patent/ES2574090T3/en active Active
- 2007-10-23 US US12/446,253 patent/US20100319376A1/en not_active Abandoned
- 2007-10-23 RU RU2009120525/06A patent/RU2395044C1/en not_active IP Right Cessation
- 2007-10-23 BR BRPI0716309-6A patent/BRPI0716309A2/en not_active Application Discontinuation
- 2007-10-23 WO PCT/JP2007/070655 patent/WO2008053752A1/en active Application Filing
- 2007-10-29 TW TW096140621A patent/TW200827637A/en not_active IP Right Cessation
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| CN1303470A (en) * | 1998-07-24 | 2001-07-11 | 大金工业株式会社 | Refrigerating device |
| CN1483974A (en) * | 2002-06-12 | 2004-03-24 | Lg������ʽ���� | Multe-unit air conditioner and control method |
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| JP特开平11-325636A 1999.11.26 |
| JP特开平9-26219A 1997.01.28 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2078905B1 (en) | 2016-03-09 |
| KR100989460B1 (en) | 2010-10-22 |
| TW200827637A (en) | 2008-07-01 |
| WO2008053752A1 (en) | 2008-05-08 |
| JP2008111589A (en) | 2008-05-15 |
| AU2007315521B2 (en) | 2011-03-10 |
| RU2395044C1 (en) | 2010-07-20 |
| EP2078905A1 (en) | 2009-07-15 |
| CN101529169A (en) | 2009-09-09 |
| EP2078905A4 (en) | 2013-03-27 |
| ES2574090T3 (en) | 2016-06-14 |
| JP4079184B1 (en) | 2008-04-23 |
| US20100319376A1 (en) | 2010-12-23 |
| TWI342944B (en) | 2011-06-01 |
| BRPI0716309A2 (en) | 2015-05-19 |
| AU2007315521A1 (en) | 2008-05-08 |
| KR20090089298A (en) | 2009-08-21 |
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Granted publication date: 20110727 Termination date: 20211023 |