CN101144662A - Dual-purpose heat pump device for winter and summer - Google Patents

Dual-purpose heat pump device for winter and summer Download PDF

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Publication number
CN101144662A
CN101144662A CN 200710162570 CN200710162570A CN101144662A CN 101144662 A CN101144662 A CN 101144662A CN 200710162570 CN200710162570 CN 200710162570 CN 200710162570 A CN200710162570 A CN 200710162570A CN 101144662 A CN101144662 A CN 101144662A
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heat exchanger
pipeline
flow direction
control valve
direction control
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CN 200710162570
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CN100529590C (en
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刘雄
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Xian University of Architecture and Technology
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Xian University of Architecture and Technology
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Priority claimed from CN 200710018006 external-priority patent/CN101093117A/en
Application filed by Xian University of Architecture and Technology filed Critical Xian University of Architecture and Technology
Priority to CN 200710162570 priority Critical patent/CN100529590C/en
Publication of CN101144662A publication Critical patent/CN101144662A/en
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Publication of CN100529590C publication Critical patent/CN100529590C/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
    • 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

Abstract

The invention discloses a heat pump device which can be used both in summer and winter. The heat pump device comprises a compressor, a heat source side heat exchanger, a user side heat interchanger, a throttling mechanism and a four-way valve; and the heat pump device also comprises a second heat interchanger, a second throttling mechanism and a second four-way valve. The four-way valve is provided with four nodes, a four-way valve node is connected with the output end of the compressor through a pipeline, the four-way valve node is connected with the input end of the compressor through the pipeline, the four-way valve node is connected with one end of the user side heat interchanger through the pipeline, the four-way valve node is connected to the node of the four-way valve through the pipeline, the other node of the four-way valve is connected with the other ends of the user side heat interchanger in sequence through the pipeline and the throttling mechanism, the four-way valve node is connected with one end of the heat source side heat exchanger, and the other end of the heat source side heat exchanger is connected with the four-way valve node through the throttling mechanism and the second heat interchanger. The heat pump device produces the hot water to refrigerate or heat in the operation process. The recycling produces the low temperature afterheat. In the process of refrigeration cycle in summer and heating cycle in winter, the super cooling of a refrigeration agent can be realized. The invention is suitable for the industrial and civil use.

Description

Dual-purpose heat pump device for winter and summer
Technical field
The present invention relates to refrigeration and heating combined equipment, a kind of dual-purpose heat pump device for winter and summer of particularly suitable.
Background technology
At present, conventional dual-purpose heat pump device for winter and summer is made up of compressor, user side heat exchanger, heat source side heat exchanger, throttle mechanism and cross valve, and it relies on cross valve to switch the winter operation condition in summer; In the summer operation process, the user side heat exchanger absorbs heat from the user, is user's cooling, and the heat that is absorbed enters low-temperature heat source by heat source side heat exchanger again; In the running, heat source side heat exchanger absorbs heat from low-temperature heat source in the winter time, is user's heat supply by the user side heat exchanger again; Low-temperature heat source commonly used now has air, soil and water etc., and water comprises surface water and underground water.The problem that this heat pump assembly exists is: in running, can not recycle the low temperature exhaust heat that heat pump assembly is discharged.In addition, for the dual-purpose heat pump device for winter and summer of outdoor air, except that the problems referred to above as low-temperature heat source, in the winter time in the running, when evaporating temperature was low, the frosting on the heat source side heat exchanger also can influence the operate as normal of heat pump assembly, defrosting regularly when therefore moving.The most frequently used Defrost method is contrary circulation hot gas defrosting at present, and this method can guarantee defrosting rapidly and effectively, still, must absorb heat from the user during defrosting.For example: the family expenses detachable air conditioner of Winter-summer dual purpose, it is one of conventional dual-purpose heat pump device for winter and summer, and its indoor heat exchanger is the user side heat exchanger, and outdoor heat exchanger is a heat source side heat exchanger.When it normally moves in the winter time, utilize the heat of outdoor heat exchanger absorption chamber outer air, heat room air by indoor heat exchanger, to keep the room temperature of requirement, and in the winter time during Defrost operation, then opposite, utilize indoor heat exchanger to absorb heat from room air, to melt away the frost between the outdoor heat exchanger fin, this shows, conventional with the dual-purpose heat pump device for winter and summer of outdoor air, in the winter time in the Defrost operation process as low-temperature heat source, also there be cancelling out each other of cold and hot amount, cause the heat pump assembly performance decrease.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structurely, easy to use, each parts can be according to the dual-purpose heat pump device for winter and summer of the multiple different version of different demand combinations.
In order to overcome the problem that above-mentioned technology exists, the technical scheme of technical solution problem of the present invention is:
1, a kind of dual-purpose heat pump device for winter and summer comprises compressor, heat source side heat exchanger, user side heat exchanger, throttle mechanism and first cross valve; Its outstanding substantive distinguishing features and obvious improvement is that it also comprises second heat exchanger, throttle mechanism and second cross valve; Described cross valve is respectively equipped with four nodes, a node of first cross valve is connected with compressor output end by pipeline, another node of first cross valve is connected with the compressor input by pipeline, the 3rd node of first cross valve is connected with user side heat exchanger one end by pipeline, the 4th node of first cross valve is connected on the node of second cross valve by pipeline, another node of second cross valve passes through pipeline successively, throttle mechanism is connected with the user side heat exchanger other end, the 3rd node of second cross valve is connected with heat source side heat exchanger one end, and the heat source side heat exchanger other end passes through throttle mechanism successively, second heat exchanger is connected with the 4th node of second cross valve;
Or first flow direction control valve and user side heat exchanger and throttle mechanism are set are connected in parallel, first flow direction control valve, one end is connected with pipeline between first cross valve and the user side heat exchanger, and the first flow direction control valve other end is connected with pipeline between second cross valve and the throttle mechanism.
2, a kind of dual-purpose heat pump device for winter and summer comprises compressor, heat source side heat exchanger, user side heat exchanger, throttle mechanism and first cross valve; Its outstanding substantive distinguishing features and obvious improvement is that it also comprises second heat exchanger, throttle mechanism and second cross valve; Described cross valve is respectively equipped with four nodes, a node of first cross valve is connected with compressor output end by pipeline, another node of first cross valve is connected with the compressor input by pipeline, the 3rd node of first cross valve is connected with user side heat exchanger one end by pipeline, the 4th node of first cross valve is connected on the node of second cross valve by pipeline, another node of second cross valve is connected with the user side heat exchanger other end by pipeline, the 3rd node of second cross valve is connected with heat source side heat exchanger one end, and the heat source side heat exchanger other end passes through throttle mechanism successively, second heat exchanger, throttle mechanism is connected with the 4th node of second cross valve;
Or first flow direction control valve is set and the user side heat exchanger is connected in parallel;
Or second flow direction control valve being set and the user side heat exchanger is connected in series, the user side heat exchanger other end and the second flow direction control valve other end and first flow direction control valve are connected in parallel simultaneously.
3, a kind of dual-purpose heat pump device for winter and summer comprises compressor, heat source side heat exchanger, user side heat exchanger, throttle mechanism and first cross valve; Its outstanding substantive distinguishing features and obvious improvement is that it also comprises second heat exchanger, throttle mechanism and second cross valve; Described cross valve is respectively equipped with four nodes, a node of first cross valve is connected with compressor output end by pipeline, another node of first cross valve is connected with the compressor input by pipeline, the 3rd node of first cross valve is connected with user side heat exchanger one end by pipeline, the 4th node of first cross valve is connected on the node of second cross valve by pipeline, another node of second cross valve is connected with the user side heat exchanger other end by pipeline, the 3rd node of second cross valve is connected with second heat exchanger, one end, and the second heat exchanger other end passes through throttle mechanism successively, heat source side heat exchanger, throttle mechanism is connected with the 4th node of second cross valve;
Or first flow direction control valve is set and the user side heat exchanger is connected in parallel;
Or second flow direction control valve being set and the user side heat exchanger is connected in series, the user side heat exchanger other end and the second flow direction control valve other end and first flow direction control valve are connected in parallel simultaneously.
4, a kind of dual-purpose heat pump device for winter and summer comprises compressor, heat source side heat exchanger, user side heat exchanger, throttle mechanism and first cross valve; Its outstanding substantive distinguishing features and obvious improvement is that it also comprises second heat exchanger, throttle mechanism, second cross valve, first flow direction control valve, second flow direction control valve and the 9th flow direction control valve; Described cross valve is respectively equipped with four nodes, a node of first cross valve is connected with compressor output end by pipeline, another node of first cross valve is connected with the compressor input by pipeline, the 3rd node of first cross valve is connected with user side heat exchanger one end by pipeline, the 4th node of first cross valve is connected on the node of second cross valve by pipeline, another node of second cross valve passes through pipeline successively, second flow direction control valve, throttle mechanism is connected with the user side heat exchanger other end, the 3rd node of second cross valve is connected with heat source side heat exchanger one end, the heat source side heat exchanger other end passes through throttle mechanism successively, second heat exchanger is connected with the 4th node of second cross valve, described first flow direction control valve, one end is connected with pipeline between first cross valve and the user side heat exchanger, the first flow direction control valve other end is connected with pipeline between second cross valve and second flow direction control valve, the 9th flow direction control valve one end is connected with pipeline between the throttle mechanism and second flow direction control valve, and the 9th flow direction control valve other end is connected with pipeline between the throttle mechanism and second heat exchanger;
Or the 9th flow direction control valve one end is connected with pipeline between the throttle mechanism and second flow direction control valve, and the 9th flow direction control valve other end is connected with pipeline between throttle mechanism and the heat source side heat exchanger.
5, a kind of dual-purpose heat pump device for winter and summer comprises compressor, heat source side heat exchanger, user side heat exchanger, throttle mechanism and first cross valve; Its outstanding substantive distinguishing features and obvious improvement is that it also comprises second heat exchanger, throttle mechanism, second cross valve, the 6th flow direction control valve, the 7th flow direction control valve and the 8th flow direction control valve; Described cross valve is respectively equipped with four nodes, a node of first cross valve is connected with compressor output end by pipeline, another node of first cross valve is connected with the compressor input by pipeline, the 3rd node of first cross valve is connected with user side heat exchanger one end by pipeline, the 4th node of first cross valve is connected on the node of second cross valve by pipeline, another node of second cross valve is connected with the user side heat exchanger other end by pipeline, the 3rd node of second cross valve is connected with second heat exchanger, one end, the second heat exchanger other end passes through throttle mechanism successively, heat source side heat exchanger, the 8th flow direction control valve, throttle mechanism is connected with the 4th node of second cross valve, described the 7th flow direction control valve one end is connected with pipeline between the throttle mechanism and second heat exchanger, the 7th flow direction control valve other end is connected with pipeline between throttle mechanism and the 8th flow direction control valve, the 6th flow direction control valve one end is connected with pipeline between heat source side heat exchanger and the 8th flow direction control valve, and the 6th flow direction control valve other end is connected with pipeline between the user side heat exchanger and first cross valve by pipeline;
Or between pipeline and pipeline, bypass is set and is connected, the 5th flow direction control valve is set in bypass;
Or between pipeline and pipeline, bypass is set and is connected, the 5th flow direction control valve is set in bypass, second flow direction control valve and user side heat exchanger are connected in series, the second flow direction control valve other end and the user side heat exchanger other end be while and pipeline respectively, and the 5th flow direction control valve is connected with pipeline;
Or between pipeline and pipeline, bypass is set and is connected, the 5th flow direction control valve is set in bypass, second flow direction control valve and user side heat exchanger are connected in series, second flow direction control valve, one end is connected with the user side heat exchanger, the second flow direction control valve other end is connected with pipeline with the 5th flow direction control valve simultaneously, the 9th flow direction control valve one end is connected with pipeline between the user side heat exchanger and second flow direction control valve, and the 9th flow direction control valve other end is connected with pipeline between the throttle mechanism and second heat exchanger.
6, a kind of dual-purpose heat pump device for winter and summer comprises compressor, heat source side heat exchanger, user side heat exchanger, throttle mechanism and first cross valve; Its outstanding substantive distinguishing features and obvious improvement is that it also comprises second heat exchanger, throttle mechanism, second cross valve, the 6th flow direction control valve, the 7th flow direction control valve and the 8th flow direction control valve; Described cross valve is respectively equipped with four nodes, a node of first cross valve is connected with compressor output end by pipeline, another node of first cross valve is connected with the compressor input by pipeline, the 3rd node of first cross valve is connected with user side heat exchanger one end by pipeline, the 4th node of first cross valve is connected on the node of second cross valve by pipeline, another node of second cross valve is connected with the user side heat exchanger other end by pipeline, the 3rd node of second cross valve is connected with heat source side heat exchanger one end, the heat source side heat exchanger other end passes through throttle mechanism successively, second heat exchanger, the 8th flow direction control valve, throttle mechanism is connected with the 4th node of second cross valve, described the 7th flow direction control valve one end is connected with pipeline between throttle mechanism and the heat source side heat exchanger, the 7th flow direction control valve other end is connected with pipeline between throttle mechanism and the 8th flow direction control valve, the 6th flow direction control valve one end is connected with pipeline between second heat exchanger and the 8th flow direction control valve, and the 6th flow direction control valve other end is connected with pipeline between the user side heat exchanger and first cross valve by pipeline;
Or between pipeline and pipeline, bypass is set and is connected, the 5th flow direction control valve is set in bypass;
Or between pipeline and pipeline, bypass is set and is connected, the 5th flow direction control valve is set in bypass, second flow direction control valve and user side heat exchanger are connected in series, the second flow direction control valve other end and the user side heat exchanger other end be while and pipeline respectively, and the 5th flow direction control valve links to each other with pipeline;
Or between pipeline and pipeline, bypass is set and is connected, the 5th flow direction control valve is set in bypass, second flow direction control valve and user side heat exchanger are connected in series, second flow direction control valve, one end is connected with the user side heat exchanger, the second flow direction control valve other end is connected with pipeline with the 5th flow direction control valve simultaneously, the 9th flow direction control valve one end is connected with pipeline between the user side heat exchanger and second flow direction control valve, and the 9th flow direction control valve other end is connected with pipeline between throttle mechanism and the heat source side heat exchanger.
The present invention compared with prior art, its beneficial effect is:
1. in running, can realize multiple function as required, produce hot water, refrigeration or heating.
2. can recycle the low temperature exhaust heat that heat pump assembly is produced in running.
3. for the dual-purpose heat pump device for winter and summer of outdoor air as low-temperature heat source, during Defrost operation, can avoid cancelling out each other of cold and hot amount in the winter time, reduce the energy consumption of defrost process, improve the performance of heat pump assembly.
4. in summer kind of refrigeration cycle, winter heating's cyclic process, can also realize the cold excessively of cold-producing medium.
5. the present invention is applicable to industry and civilian dual-purpose heat pump device for winter and summer, is specially adapted to civilian middle-size and small-size dual-purpose heat pump device for winter and summer.
Description of drawings
Fig. 1 is the embodiment of the invention 1,6,7,8 structural representations;
Fig. 2 is the embodiment of the invention 2,9 structural representations;
Fig. 3 is the embodiment of the invention 3 structural representations;
Fig. 4 is the embodiment of the invention 4 structural representations;
Fig. 5 is the embodiment of the invention 5 structural representations;
Fig. 6 is the embodiment of the invention 10 structural representations;
Fig. 7 is the embodiment of the invention 10 structural representations;
Fig. 8 is the embodiment of the invention 11 structural representations;
Fig. 9 is the embodiment of the invention 12 structural representations;
Figure 10 is the embodiment of the invention 13 structural representations;
Figure 11 is the embodiment of the invention 14 structural representations;
Figure 12 is the corresponding scenario-frame schematic diagram that changes of Fig. 8;
Figure 13 is the corresponding scenario-frame schematic diagram that changes of Figure 10;
Figure 14 is the embodiment of the invention 15 structural representations;
Figure 15 is the embodiment of the invention 16 structural representations.
The specific embodiment
Accompanying drawing is a plurality of embodiment of the present invention.
Below in conjunction with accompanying drawing content of the present invention is described in further detail:
Embodiment 1
As shown in Figure 1, whole device comprises following equipment: compressor 1, heat source side heat exchanger 2, user side heat exchanger 3, throttle mechanism 4 and 5, second heat exchanger 6, cross valve 70 and 80.
First cross valve, 70 inside are provided with four passages, 71,72,73,74, the second cross valves, 80 inside and also are provided with four passages 81,82,83,84; There is four points of connection each cross valve outside, and each tie point links to each other with two passages of inside.User side heat exchanger 3 is cold-producing medium-air heat exchangers.
Heat source side heat exchanger 2, second heat exchanger 6 also are cold-producing medium-air heat exchangers, and they can divide and are arranged; Also can be installed in the same housing, provide air by at least one air driven equipment, being used for carrying the equipment of air can be blower fan or fan.
Throttle mechanism the 4, the 5th, electric expansion valve.
Whole device can be divided into three circulatory systems by the difference of its course of work: summer kind of refrigeration cycle, winter heating's circulation, winter frost removing circulation.
Summer kind of refrigeration cycle
During work, throttle mechanism 5 standard-sized sheets, throttle mechanism 4 operate as normal.
Its circulation loop is as follows: the outlet of compressor 1 is by pipeline 60, the passage 71 of first cross valve 70, pipeline 61, the passage 81 of second cross valve 80, pipeline 41 links to each other with heat source side heat exchanger 2, heat source side heat exchanger 2 links to each other with throttle mechanism 5 by pipeline 42, throttle mechanism 5 links to each other with second heat exchanger 6, second heat exchanger 6 is by pipeline 31, the passage 83 of second cross valve 80, pipeline 62 links to each other with throttle mechanism 4, throttle mechanism 4 links to each other with user side heat exchanger 3, user side heat exchanger 3 is by pipeline 64, the passage 73 of first cross valve 70, pipeline 63 links to each other with the input port of compressor 1, constitute one summer the kind of refrigeration cycle loop, realize cooling to the user.
During work, the low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 71 of first cross valve 70, pipeline 61, the passage 81 of second cross valve 80, pipeline 41 enters heat source side heat exchanger 2 and carries out indirect heat exchange with outdoor air, become refrigerant liquid after emitting heat, refrigerant liquid is through piping 42 and throttle mechanism 5 enters second heat exchanger 6 and air carries out indirect heat exchange once more by cold excessively, cross refrigerant liquid after cold through piping 31, the passage 83 of second cross valve 80, pipeline 62 enters throttle mechanism 4 by throttling, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter user side heat exchanger 3 again, absorb user's heat therein by indirect heat exchange, be user's cooling, after cold-producing medium absorbs user's heat, become the low-temperature low-pressure refrigerant steam, through piping 64, the passage 73 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes kind of refrigeration cycle one time.
2. winter heating's circulation
During work, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal.
Its circulation loop is as follows: the outlet of compressor 1 is by pipeline 60, the passage 74 of first cross valve 70, pipeline 64 links to each other with user side heat exchanger 3, user side heat exchanger 3 links to each other with throttle mechanism 4, throttle mechanism 4 is by pipeline 62, the passage 83 of second cross valve 80, pipeline 31 links to each other with second heat exchanger 6, second heat exchanger 6 links to each other with throttle mechanism 5, throttle mechanism 5 links to each other with heat source side heat exchanger 2 by pipeline 42, heat source side heat exchanger 2 is by pipeline 41, the passage 81 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 links to each other with the input port of compressor 1, constitute winter heating's circulation loop, realize heat supply the user.
During work, the low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 74 of first cross valve 70, pipeline 64 laggard access customer side heat exchangers 3, emit heat by indirect heat exchange therein, be user's heat supply, after cold-producing medium is emitted heat, become high-temperature high-pressure refrigerant liquid, refrigerant liquid passes through throttle mechanism 4 again, pipeline 62, the passage 83 of second cross valve 80, pipeline 31 enters second heat exchanger 6, carry out indirect heat exchange with outdoor air therein, quilt is cold excessively after emitting heat, cross refrigerant liquid after cold by throttle mechanism 5 throttlings, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 through piping 42, pass through the heat of indirect heat exchange absorption chamber outer air therein, become the low-temperature low-pressure refrigerant steam, refrigerant vapour is again through piping 41, the passage 81 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes once to heat circulation.
3. winter frost removing circulation
In the winter time in the defrost cycle course of work, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal; The blower fan or the fan of user side heat exchanger 3 air side should be out of service.
Its circulation loop is as follows: the outlet of compressor 1 is by pipeline 60, the passage 74 of first cross valve 70, pipeline 64 links to each other with user side heat exchanger 3, user side heat exchanger 3 links to each other with throttle mechanism 4, throttle mechanism 4 is by pipeline 62, the passage 82 of second cross valve 80, pipeline 41 links to each other with heat source side heat exchanger 2, heat source side heat exchanger 2 links to each other with throttle mechanism 5 by pipeline 42, throttle mechanism 5 links to each other with second heat exchanger 6, second heat exchanger 6 is by pipeline 31, the passage 84 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 links to each other with the inlet of compressor 1, constitute a winter frost removing circulation loop, realize defrosting heat source side heat exchanger 2.
During work, the low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 74 of first cross valve 70, pipeline 64, user side heat exchanger 3, throttle mechanism 4, pipeline 62, the passage 82 of second cross valve 80, pipeline 41 enters heat source side heat exchanger 2, emit heat by indirect heat exchange therein, heat source side heat exchanger 2 is defrosted, cold-producing medium becomes refrigerant liquid after emitting heat, enter throttle mechanism 5 by throttling through piping 42 again, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter second heat exchanger 6, carry out indirect heat exchange with outdoor air therein, become the low-temperature low-pressure refrigerant steam after absorbing its heat, refrigerant vapour is again through piping 31, the passage 84 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes defrost cycle one time.
In implementation process, heat source side heat exchanger 2 and the link position of second heat exchanger 6 in device can exchange, after the exchange, has identical function with present embodiment, when realizing same function, each equipment role is also identical, still, and the passage difference that cold-producing medium is walked by second cross valve 80.
Embodiment 2
Shown in Figure 2, user side heat exchanger 3, heat source side heat exchanger 2, second heat exchanger 6 all are cold-producing medium-air heat exchangers.It is compared with embodiment 1, and unique difference is to have increased by the first flow direction control valve 7-1, and it and user side heat exchanger 3, throttle mechanism 4 are connected in parallel, and miscellaneous equipment in the device and connected mode and embodiment 1 are identical.
In the summer of embodiment 2 kind of refrigeration cycle, winter heating's periodic duty process, the first flow direction control valve 7-1 closes, therefore, and embodiment 2 refrigeration and to heat the course of work and the embodiment 1 of circulation identical.
In the winter frost removing periodic duty process of embodiment 2, the first flow direction control valve 7-1 opens, throttle mechanism 4 cuts out, therefore in the defrosting course of work, the refrigerant superheat steam that comes out from compressor 1 is without user side heat exchanger 3 and throttle mechanism 4, and from the first flow direction control valve 7-1 bypass, so can avoid the heat release of refrigerant superheat steam user side heat exchanger 3 of coming out from compressor 1, improve the efficient of defrosting, shorten the time of defrosting.Except this difference, in embodiment 2, other course of work and the embodiment 1 of defrost cycle are identical.
In implementation process, the first flow direction control valve 7-1 can be a magnetic valve.When user side heat exchanger 3 is cold-producing medium-water-to-water heat exchanger, compare with embodiment 1, in the defrost cycle course of work, embodiment 2 can avoid the heat exchange between refrigerant vapour and the water in the winter time.
Embodiment 3
Shown in Figure 3, user side heat exchanger 3, heat source side heat exchanger 2, second heat exchanger 6 all are cold-producing medium-air heat exchangers.The difference of it and embodiment 1 is: in embodiment 1, throttle mechanism 4 is set on second cross valve 80 and the pipeline that user side heat exchanger 3 links to each other; But in embodiment 3, throttle mechanism 4 is set on second cross valve 80 and the pipeline that second heat exchanger 6 links to each other.
In addition, in embodiment 3, the connected mode of miscellaneous equipment is identical with embodiment 1.During work, the circulation loop of kind of refrigeration cycle, winter heating circulation in summer and winter frost removing circulation and the effect of each equipment are also identical with embodiment 1.
In implementation process, also have following scheme: an end of throttle mechanism 4 links to each other with the passage of second cross valve 80 (81,82), its other end remains with an end of second heat exchanger 6 and links to each other, and the other end of second heat exchanger 6 links to each other with the passage (83,84) of second cross valve 80 by throttle mechanism 5, heat source side heat exchanger 2.In addition, the connected mode of miscellaneous equipment and embodiment 3 are identical.
This scheme has the 3 identical functions with embodiment.When realizing same function, each equipment role is identical, and unique difference is: in the course of work, and when cold-producing medium passes through second cross valve 80, the passage difference of being walked.
For example: kind of refrigeration cycle when work in summer after this programme enters pipeline 61 from the refrigerant superheat steam of compressor 1, is that the passage 84 through second cross valve 80 enters heat source side heat exchanger 2; And cold-producing medium by throttle mechanism 4 throttlings after, then be that the passage 82 through second cross valve 80 enters pipeline 62.And embodiment 3 is different, enter pipeline 61 from the refrigerant superheat steam of compressor 1 after, be that the passage 81 through second cross valve 80 enters heat source side heat exchanger 2; And cold-producing medium by throttle mechanism 4 throttlings after, then be that the passage 83 through second cross valve 80 enters pipeline 62.Except that above difference, other course of work in the circulation is identical.When realizing other function, also there is similar situation.
In addition, owing to heat source side heat exchanger 2, second heat exchanger 6 all are cold-producing medium-air heat exchangers, they can play a part identical, so their positions in circulation loop can exchange.。
Embodiment 4
Shown in Figure 4, user side heat exchanger 3, heat source side heat exchanger 2, second heat exchanger 6 all are cold-producing medium-air heat exchangers.It and embodiment 3 unique not being both: in embodiment 3, user side heat exchanger 3 is to link to each other with the passage 82,83 of second cross valve 80 by pipeline 62; But in embodiment 4, user side heat exchanger 3 is to link to each other with the passage 82,83 of second cross valve 80 by the second flow direction control valve 7-2, pipeline 62, have bypass path and user side heat exchanger 3 and the second flow direction control valve 7-2 to be connected in parallel, this bypass path is provided with the first flow direction control valve 7-1.
In addition, in embodiment 4, the connected mode of miscellaneous equipment is identical with embodiment 3.
In the summer of embodiment 4 kind of refrigeration cycle, winter heating's periodic duty process, the first flow direction control valve 7-1 on the bypass path is closed, and the second flow direction control valve 7-2 that links to each other with user side heat exchanger 3 opens, therefore, embodiment freezes identical with embodiment 34 summers with the circulation loop of winter heating circulation.
In the winter frost removing periodic duty process of embodiment 4, the first flow direction control valve 7-1 on the bypass path opens, and the second flow direction control valve 7-2 that links to each other with user side heat exchanger 3 is closed, therefore in the defrosting course of work, the refrigerant superheat steam that comes out from compressor 1 is without user side heat exchanger 3, and passes through from the bypass path, so can avoid the heat release of refrigerant superheat steam user side heat exchanger 3 of coming out from compressor 1, improve defrosting efficiency, shorten defrosting time.Except this difference, in embodiment 4, other course of work and the embodiment 3 of defrost cycle are identical.
In implementation process, when user side heat exchanger 3 is cold-producing medium-water-to-water heat exchanger, compare with embodiment 3, in the defrost cycle course of work, embodiment 4 can avoid the heat exchange between refrigerant vapour and the water in the winter time.In addition, in implementation process, the link position of second flow direction control valve 7-2 shown in Figure 4 and user side heat exchanger 3 can exchange.After the exchange, the end of the second flow direction control valve 7-2 is connected with user side heat exchanger 3, and the other end links to each other with pipeline 64 with the first flow direction control valve 7-1.
In actual application, also have another kind of scheme, unique difference of it and present embodiment is not have the second flow direction control valve 7-2.When its kind of refrigeration cycle, winter heating periodic duty, the first flow direction control valve 7-1 closes in summer, and its circulation loop is identical with the corresponding circulation of the course of work and present embodiment; And when its winter frost removing periodic duty, the first flow direction control valve 7-1 opens, and exhausted most cold-producing medium passes through from the first flow direction control valve 7-1 bypass, and the other parts of circulation loop are also identical with the winter frost removing circulation of present embodiment with the course of work.
Embodiment 5
Shown in Figure 5, user side heat exchanger 3, heat source side heat exchanger 2 are cold-producing medium-air heat exchangers, and second heat exchanger 6 is cold-producing medium-water-to-water heat exchangers.In addition, system form and connected mode on, the difference of it and embodiment 3 only is that the heat source side heat exchanger 2 and second position of heat exchanger 6 in circulation loop exchange.Therefore, in summer in the winter course of work, the low temperature exhaust heat that second heat exchanger 6 is recyclable to be utilized in the course of work to be produced, preparation low-temperature water heating, the needs that satisfy life or produce; For with the dual-purpose heat pump device for winter and summer of outdoor air as low-temperature heat source, when working in the winter time, the heat that can also utilize low-temperature water heating to accumulate defrosts.
Whole device can be divided into three circulatory systems by the difference of its course of work, they be respectively summer refrigeration and recuperation of heat circulation, winter heating and recuperation of heat circulation, winter frost removing circulate.
In summer refrigeration and recuperation of heat circulation, winter heating and recuperation of heat circulation, the different cyclic process of several functions is arranged respectively.Its working cycles is as follows:
1. refrigeration and recuperation of heat circulation in summer
1) summer normal refrigeration and recuperation of heat circulation
In this circulation, preferentially guarantee user's refrigeration demand, and utilize second heat exchanger 6 to reclaim the low temperature exhaust heat that is produced in the process of refrigerastion, produce low-temperature water heating.
During work, throttle mechanism 5 standard-sized sheets, throttle mechanism 4 operate as normal.
Its circulation loop is as follows: the outlet of compressor 1 is by pipeline 60, the passage 71 of first cross valve 70, pipeline 61, the passage 81 of second cross valve 80, pipeline 41 links to each other with second heat exchanger 6, second heat exchanger 6 is by pipeline 42, throttle mechanism 5 links to each other with heat source side heat exchanger 2, heat source side heat exchanger 2 is by pipeline 34, throttle mechanism 4, pipeline 31, the passage 83 of second cross valve 80, pipeline 62 links to each other with user side heat exchanger 3, user side heat exchanger 3 is by pipeline 64, the passage 73 of first cross valve 70, pipeline 63 links to each other with the inlet of compressor 1, constitute normal the refrigeration and the recuperation of heat circulation in a summer, realize cooling and recuperation of heat the user.
During work, the low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 71 of first cross valve 70, pipeline 61, the passage 81 of second cross valve 80, pipeline 41 enters in second heat exchanger 6 and carries out indirect heat exchange with water, water is heated to form low-temperature water heating, and superheated vapor becomes refrigerant liquid after emitting heat, refrigerant liquid is through piping 42, throttle mechanism 5 enters heat source side heat exchanger 2 and carries out indirect heat exchange again with outdoor air or indoor exhaust wind, by cold excessively, the refrigerant liquid of crossing after cold enters throttle mechanism 4 by throttling through piping 34, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, through piping 31, the passage 83 of second cross valve 80, pipeline 62 enters user side heat exchanger 3, absorb user's heat therein by indirect heat exchange, be user's cooling, after cold-producing medium absorbs user's heat, become the low-temperature low-pressure refrigerant steam, through piping 64, the passage 73 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes normally refrigeration and recuperation of heat circulation in a summer.
2) produce the low-temperature water heating circulation summer fast
When need to produce low-temperature water heating fast summer, temporarily stop refrigeration, and utilize heat source side heat exchanger 2 to absorb heat from outdoor air or indoor exhaust wind for the user, produce low-temperature water heating fast by second heat exchanger 6.During work, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal.The blower fan or the fan of user side heat exchanger 3 air side should be out of service.
Its circulation loop normally freezes identical with the recuperation of heat circulation with the summer of present embodiment.
During work, the low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 71 of first cross valve 70, pipeline 61, the passage 81 of second cross valve 80, pipeline 41 enters second heat exchanger 6 and carries out indirect heat exchange with water, water is heated to form low-temperature water heating, and superheated vapor becomes refrigerant liquid after emitting heat, refrigerant liquid enters throttle mechanism 5 by throttling through piping 42, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 and carry out indirect heat exchange with outdoor air or indoor exhaust wind, after absorbing the heat of air, become the low-temperature low-pressure refrigerant steam, again through piping 34, throttle mechanism 4, pipeline 31, the passage 83 of second cross valve 80, pipeline 62, user side heat exchanger 3, pipeline 64, the passage 73 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes and produces the low-temperature water heating circulation summer fast.
2. winter heating and recuperation of heat circulation
1) normally heats winter with recuperation of heat and circulate
In this circulation, preferentially guarantee user's heat demand, and it is cold to utilize 6 pairs of cold-producing mediums of second heat exchanger to carry out, and reclaimed cold-producing medium institute liberated heat when cold.
During work, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal.
Its circulation loop is as follows: the outlet of compressor 1 is by pipeline 60, the passage 74 of first cross valve 70, pipeline 64 links to each other with user side heat exchanger 3, user side heat exchanger 3 is by pipeline 62, the passage 82 of second cross valve 80, pipeline 41 links to each other with second heat exchanger 6, second heat exchanger 6 is by pipeline 42, throttle mechanism 5 links to each other with heat source side heat exchanger 2, heat source side heat exchanger 2 is by pipeline 34, throttle mechanism 4, pipeline 31, the passage 84 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 links to each other with the inlet of compressor 1, constitute and normally heat a winter and recuperation of heat circulation, realize heating and recuperation of heat.
During work, the low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 74 of first cross valve 70, pipeline 64 enters user side heat exchanger 3 and carries out indirect heat exchange with air, be user's heat supply, and superheated vapor becomes refrigerant liquid after emitting heat, refrigerant liquid is through piping 62, the passage 82 of second cross valve 80, pipeline 41 enters second heat exchanger 6 and carries out indirect heat exchange with water, water is heated to form low-temperature water heating, and refrigerant liquid is emitted behind the heat by cold excessively, enter throttle mechanism 5 by throttling through piping 42 again, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 and carry out indirect heat exchange with outdoor air or indoor exhaust wind, after absorbing the heat of air, become the low-temperature low-pressure refrigerant steam, through piping 34, throttle mechanism 4, pipeline 31, the passage 84 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 enters in the compressor 1 and is compressed, and so far finishes normally to heat with recuperation of heat a winter to circulate.
2) produce the low-temperature water heating circulation winter fast
When needing in the winter time to produce low-temperature water heating fast, temporarily stop heat supply, and utilize heat source side heat exchanger 2 to absorb heat, produce low-temperature water heating fast by second heat exchanger 6 from outdoor air or indoor exhaust wind for the user.During work, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal, the blower fan or the fan of user side heat exchanger 3 are out of service.
Its circulation loop normally heats identical with the circulation loop of recuperation of heat circulation with present embodiment winter.
In the running, because the blower fan or the fan of user side heat exchanger 3 are out of service, therefore, from the refrigerant superheat steam of compressor 1 during through user side heat exchanger 3, the seldom a part of heat that only can shed, exhausted most heat directly enters in second heat exchanger 6 produces low-temperature water heating.Its course of work is as follows:
The low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 74 of first cross valve 70, pipeline 64, user side heat exchanger 3, pipeline 62, the passage 82 of second cross valve 80, pipeline 41 enters second heat exchanger 6 and carries out indirect heat exchange with water, produce low-temperature water heating, and refrigerant vapour is condensed into liquid after emitting heat, enter throttle mechanism 5 by throttling through piping 42 again, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 and carry out indirect heat exchange with outdoor air or indoor exhaust wind, after absorbing the heat of air, become the low-temperature low-pressure refrigerant steam, again through piping 34, throttle mechanism 4, pipeline 31, the passage 84 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes and produces the low-temperature water heating circulation winter fast.
3) heat supply simultaneously in winter and the circulation of production low-temperature water heating
In the running, when the user has heat supply and low-temperature water heating requirement simultaneously, utilizing heat source side heat exchanger 2 to absorb heat from outdoor air or indoor exhaust wind in the winter time, is user's heat supply by user side heat exchanger 3, produces low-temperature water heating by second heat exchanger 6 simultaneously.
During work, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal.
Its circulation loop normally heats identical with the circulation loop of recuperation of heat circulation with present embodiment winter.
In running, the blower fan or the rotation speed of the fan that add heat dependence user side heat exchanger 3 of the heating load of user side heat exchanger 3, second heat exchanger 6, and throttle mechanism 5 is controlled heat supply and production low-temperature water heating when realizing winter.Its course of work is as follows:
The low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 74 of first cross valve 70, pipeline 64 enters user side heat exchanger 3 and carries out indirect heat exchange with air, be user's heat supply, wherein the part of refrigerant steam is condensed into liquid because of emitting heat, cold-producing medium becomes the HTHP gas-fluid two-phase mixture again through piping 62, the passage 82 of second cross valve 80, pipeline 41 enters second heat exchanger 6 and carries out indirect heat exchange with water, produce low-temperature water heating, and cold-producing medium is condensed into liquid after emitting heat, enter throttle mechanism 5 by throttling through piping 42 again, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 and carry out indirect heat exchange with outdoor air or indoor exhaust wind, after absorbing the heat of air, become the low-temperature low-pressure refrigerant steam, through piping 34, throttle mechanism 4, pipeline 31, the passage 84 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes heat supply simultaneously in a winter and produces the low-temperature water heating circulation.
3. winter frost removing circulation
During work, throttle mechanism 5 operate as normal, throttle mechanism 4 standard-sized sheets.The blower fan or the fan of user side heat exchanger 3 are out of service.
Its circulation loop is as follows: the outlet of compressor 1 is by pipeline 60, the passage 74 of first cross valve 70, pipeline 64, user side heat exchanger 3, pipeline 62, the passage 83 of second cross valve 80, pipeline 31, throttle mechanism 4, pipeline 34 links to each other with heat source side heat exchanger 2, heat source side heat exchanger 2 is by throttle mechanism 5, pipeline 42 links to each other with second heat exchanger 6, second heat exchanger 6 is by pipeline 41, the passage 81 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 links to each other with the inlet of compressor 1, constitute a winter frost removing circulation, realize defrosting heat source side heat exchanger 2.
During work, the low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 74 of first cross valve 70, pipeline 64, user side heat exchanger 3, pipeline 62, the passage 83 of second cross valve 80, pipeline 31, throttle mechanism 4, pipeline 34 enters heat source side heat exchanger 2, heat source side heat exchanger 2 is defrosted, and superheated vapor becomes refrigerant liquid after emitting heat, enter throttle mechanism 5 again by throttling, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter second heat exchanger 6 through piping 42 again and carry out indirect heat exchange with water, after cold-producing medium absorbs the heat of water, become the low-temperature low-pressure refrigerant steam, again through piping 41, the passage 81 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes a winter frost removing circulation.
In implementation process, in order to improve operational efficiency, present embodiment also has following two improvement projects.
Scheme one: increase by the first flow direction control valve 7-1, it and user side heat exchanger 3 are connected in parallel, and other is partly identical with present embodiment.
Circulate in summer normal refrigeration and recuperation of heat, when normally heat winter with the recuperation of heat periodic duty, the first flow direction control valve 7-1 closes, the corresponding circulation with present embodiment of its circulation loop and the course of work is identical; Produce low-temperature water heating circulation, winter fast when producing low-temperature water heating circulation and winter frost removing periodic duty fast in summer, the first flow direction control valve 7-1 opens, therefore in the course of work, exhausted most cold-producing medium passes through from the first flow direction control valve 7-1 bypass, can the raising system adds the efficient of hot water and defrosting; When heat supply simultaneously is with the periodic duty of production low-temperature water heating in the winter time, the first flow direction control valve 7-1 can adopt control valve, utilize it can regulate the refrigerant flow that enters user side heat exchanger 3, the heating load of user side heat exchanger 3 and the heat that adds of second heat exchanger 6 are controlled.
Scheme two: increase by the first flow direction control valve 7-1 and the second flow direction control valve 7-2, user side heat exchanger 3 is connected with the second flow direction control valve 7-2, user side heat exchanger 3 other ends and the second flow direction control valve 7-2 other end and the first flow direction control valve 7-1 are connected in parallel, and other is partly identical with present embodiment.
In summer normal refrigeration and recuperation of heat circulation, when normally heat winter with the recuperation of heat periodic duty, the first flow direction control valve 7-1 closes, second flow direction control valve 7-2 unlatching, and the corresponding circulation with present embodiment of its circulation loop and the course of work is identical; Produce low-temperature water heating circulation, winter fast when producing low-temperature water heating circulation and winter frost removing periodic duty fast in summer, the first flow direction control valve 7-1 opens, the second flow direction control valve 7-2 closes, therefore in the course of work, ownership cryogen all passes through from the first flow direction control valve 7-1 bypass, can the raising system adds the efficient of hot water and defrosting; When heat supply simultaneously is with the periodic duty of production low-temperature water heating in the winter time, utilize the first flow direction control valve 7-1 and the second flow direction control valve 7-2 to control to the heating load of user side heat exchanger 3 and the heat that adds of second heat exchanger 6.
In the present embodiment, the passage of second cross valve 80 (83,84) is to link to each other with heat source side heat exchanger 2 by throttle mechanism 4, and 2 of heat source side heat exchangers are to link to each other with the passage (81,82) of second cross valve 80 by throttle mechanism 5, second heat exchanger 6.But in implementation process, also have following a kind of connected mode: the passage of second cross valve 80 (81,82) links to each other with heat source side heat exchanger 2 by throttle mechanism 4, and heat source side heat exchanger 2 links to each other with the passage (83,84) of second cross valve 80 by throttle mechanism 5, second heat exchanger 6.And other composition in the system and connected mode and present embodiment are identical.In running, this connected mode has and the identical function of present embodiment, and when realizing same function, the effect of each equipment is also identical.Only difference is: in the course of work, and when cold-producing medium passes through second cross valve 80, the passage difference of being walked.Also there is above-described same case in two improvement projects for present embodiment.
Embodiment 6
Shown in Figure 1, user side heat exchanger 3, heat source side heat exchanger 2 are cold-producing medium-air heat exchangers.The difference of it and embodiment 1 is: in embodiment 6, second heat exchanger 6 is evaporating heat exchangers, and miscellaneous equipment is identical with embodiment 1, and the connected mode of each equipment is also identical with embodiment 1 with workflow.
In the summer of embodiment 6 kind of refrigeration cycle process, second heat exchanger 6 is to rely on the circulated sprinkling water and air that cold-producing medium is carried out the indirect evaporation cooling, so refrigerant liquid can obtain bigger degree of supercooling, so the efficient of kind of refrigeration cycle is higher; Particularly using indoor exhaust wind to carry out under the transpiration-cooled situation.
In winter heating's cyclic process of embodiment 6, the circulated sprinkling water pump of second heat exchanger 6 is out of service, and fan continues operation, therefore, second heat exchanger 6 becomes cold-producing medium-air heat exchanger, and outdoor air or indoor exhaust wind were carried out cold by indirect heat exchange to cold-producing medium therein.
In the defrost cycle process of embodiment 6, the circulated sprinkling water pump of second heat exchanger 6 is also out of service, fan continues operation, therefore second heat exchanger 6 becomes cold-producing medium-air heat exchanger, cold-producing medium defrosts to heat source side heat exchanger 2 by indirect heat exchange draw heat from outdoor air or indoor exhaust wind therein.
In embodiment 6, except that second heat exchanger 6, the course of work of miscellaneous equipment is identical with embodiment 1.
Embodiment 7
Shown in Figure 1, user side heat exchanger 3 is cold-producing medium-air heat exchangers.The difference of it and embodiment 1 is: in embodiment 7, second heat exchanger 6 and heat source side heat exchanger 2 all are to adopt evaporating heat exchanger, and miscellaneous equipment is identical with embodiment 1, and the connected mode of each equipment is also identical with embodiment 1 with workflow.
In the summer of embodiment 7 kind of refrigeration cycle process, when outdoor wet-bulb temperature is higher than indoor wet-bulb temperature, heat source side heat exchanger 2 is to rely on circulated sprinkling water and outdoor air that cold-producing medium is carried out the indirect evaporation condensation, makes the high-temperature high-pressure refrigerant superheated vapor be condensed into refrigerant liquid.And second heat exchanger 6 is to rely on circulated sprinkling water and indoor exhaust wind that refrigerant liquid is carried out the indirect evaporation cooling, makes cold-producing medium cold excessively, so the efficient of kind of refrigeration cycle is higher.
In winter heating's cyclic process of embodiment 7, the circulated sprinkling water pump of the heat source side heat exchanger 2 and second heat exchanger 6 is all out of service, and fan continues operation, therefore they all become cold-producing medium-air heat exchanger, in second heat exchanger 6, indoor exhaust wind was carried out cold by indirect heat exchange to refrigerant liquid, and in heat source side heat exchanger 2, the refrigerant air-liquid two-phase mixture of low-temp low-pressure is user's heat supply by indirect heat exchange draw heat from outdoor air or indoor exhaust wind or both mixing airs.
In the defrost cycle process of embodiment 7, the circulated sprinkling water pump of the heat source side heat exchanger 2 and second heat exchanger 6 is all out of service, the fan of heat source side heat exchanger 2 is also out of service, but the fan of second heat exchanger 6 continues operation, therefore they all become cold-producing medium-air heat exchanger, in second heat exchanger 6, the refrigerant air-liquid two-phase mixture of low-temp low-pressure offers heat source side heat exchanger 2 and defrosts by indirect heat exchange draw heat from indoor exhaust wind;
In embodiment 7, except that the heat source side heat exchanger 2 and second heat exchanger 6, the course of work of miscellaneous equipment is identical with embodiment 1.In addition, in embodiment 7, the heat source side heat exchanger 2 and second heat exchanger 6 can divide and be arranged, and also can be installed in the housing.
Embodiment 8
Shown in Figure 1, user side heat exchanger 3, heat source side heat exchanger 2 are cold-producing medium-air heat exchangers.The difference of it and embodiment 1 is: in embodiment 1, second heat exchanger 6 is cold-producing medium-air heat exchangers, but in embodiment 8, second heat exchanger 6 is cold-producing medium-water-to-water heat exchangers, storage heat exchanger normally, and the miscellaneous equipment in the device is identical with embodiment 1 with connected mode.It and embodiment 5 have identical functions.Its working cycles is as follows:
1. refrigeration and recuperation of heat circulation in summer
1) summer normal refrigeration and recuperation of heat circulation
During work, throttle mechanism 4 operate as normal, throttle mechanism 5 standard-sized sheets.
Its circulation loop is as follows: the outlet of compressor 1 is by pipeline 60, the passage 71 of first cross valve 70, pipeline 61, the passage 84 of second cross valve 80, pipeline 31 links to each other with second heat exchanger 6, second heat exchanger 6 links to each other with throttle mechanism 5, throttle mechanism 5 links to each other with heat source side heat exchanger 2 by pipeline 42, heat source side heat exchanger 2 is by pipeline 41, the passage 82 of second cross valve 80, pipeline 62 links to each other with throttle mechanism 4, throttle mechanism 4 links to each other with user side heat exchanger 3, user side heat exchanger 3 is by pipeline 64, the passage 73 of first cross valve 70, pipeline 63 links to each other with the inlet of compressor 1, constitute the circulation loop that normally freeze a summer and recuperation of heat circulates, realize cooling and waste heat recovery the user.
During work, the low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 71 of first cross valve 70, pipeline 61, the passage 84 of second cross valve 80, pipeline 31 enters second heat exchanger 6 and carries out indirect heat exchange with water, produce low-temperature water heating, and refrigerant vapour becomes refrigerant liquid after emitting heat, refrigerant liquid process throttle mechanism 5 and pipeline 42 enter heat source side heat exchanger 2 and carry out indirect heat exchange again with outdoor air or indoor exhaust wind, by cold excessively, cross refrigerant liquid after cold through piping 41, the passage 82 of second cross valve 80, pipeline 62 enters throttle mechanism 4 by throttling, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter user side heat exchanger 3 again, absorb user's heat therein by indirect heat exchange, be user's cooling, after cold-producing medium absorbs user's heat, become the low-temperature low-pressure refrigerant steam, through piping 64, the passage 73 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes once normal refrigeration and recuperation of heat circulation.
2) produce the low-temperature water heating circulation summer fast
Its circulation loop is with summer, normally refrigeration was identical with the recuperation of heat circulation, and difference is: throttle mechanism 4 standard-sized sheets, and throttle mechanism 5 operate as normal, if user side heat exchanger 3 is cold-producing medium-air heat exchangers, when working so, its blower fan or fan should be out of service.Its course of work is as follows:
The low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 71 of first cross valve 70, pipeline 61, the passage 84 of second cross valve 80, pipeline 31 enters second heat exchanger 6 and carries out indirect heat exchange with water, produce low-temperature water heating, and refrigerant vapour becomes refrigerant liquid after emitting heat, after 5 throttlings of refrigerant liquid process throttle mechanism, become the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 through piping 42 again and carry out indirect heat exchange with outdoor air or indoor exhaust wind, cold-producing medium absorbs heat from air after, become the low-temperature low-pressure refrigerant steam, again through piping 41, the passage 82 of second cross valve 80, pipeline 62, throttle mechanism 4, user side heat exchanger 3, pipeline 64, the passage 73 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes and produces the low-temperature water heating circulation summer fast.
2. winter heating and recuperation of heat circulation
1) normally heats winter with recuperation of heat and circulate
Its circulation loop is identical with winter heating's circulation of embodiment 1, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal.Its course of work is as follows:
The low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 74 of first cross valve 70, pipeline 64 laggard access customer side heat exchangers 3, emit heat by indirect heat exchange therein, be user's heat supply, after cold-producing medium is emitted heat, become high-temperature high-pressure refrigerant liquid, refrigerant liquid passes through throttle mechanism 4 again, pipeline 62, the passage 83 of second cross valve 80, pipeline 31 enters second heat exchanger 6, carry out indirect heat exchange with water therein, quilt is cold excessively after emitting heat, and be heated behind the water absorption refrigeration agent institute liberated heat, the refrigerant liquid of crossing after cold enters throttle mechanism 5 again by throttling, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 through piping 42 again, pass through the heat of indirect heat exchange absorption chamber outer air or indoor exhaust wind therein, become the low-temperature low-pressure refrigerant steam, refrigerant vapour is again through piping 41, the passage 81 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes normally to heat with recuperation of heat a winter to circulate.
2) produce the low-temperature water heating circulation winter fast
Its circulation loop with normally heat winter with recuperation of heat circulation identical, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal.Difference is: the blower fan of user side heat exchanger 3 or fan should be out of service.Its course of work is as follows:
The low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 74 of first cross valve 70, pipeline 64, user side heat exchanger 3, throttle mechanism 4, pipeline 62, the passage 83 of second cross valve 80, pipeline 31 enters second heat exchanger 6, carry out indirect heat exchange with water therein, prepare low-temperature water heating fast, refrigerant vapour becomes refrigerant liquid after emitting heat, enter throttle mechanism 5 again by throttling, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 through piping 42, therein behind the heat by indirect heat exchange absorption chamber outer air or indoor exhaust wind, become the low-temperature low-pressure refrigerant steam, refrigerant vapour is again through piping 41, the passage 81 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes and produces the low-temperature water heating circulation winter fast.
3) heat supply simultaneously in winter and the circulation of production low-temperature water heating
During work, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal.
Its circulation loop normally heats identical with the circulation loop of recuperation of heat circulation with present embodiment winter.
In running, the blower fan or the rotation speed of the fan that add heat dependence user side heat exchanger 3 of the heating load of user side heat exchanger 3, second heat exchanger 6, and throttle mechanism 5 is controlled heat supply and production low-temperature water heating when realizing winter.Its course of work is as follows:
The low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 74 of first cross valve 70, pipeline 64 enters user side heat exchanger 3 and carries out indirect heat exchange with air, be user's heat supply, wherein the part of refrigerant steam is condensed into liquid because of emitting heat, cold-producing medium becomes the HTHP gas-fluid two-phase mixture and passes through throttle mechanism 4 again, pipeline 62, the passage 83 of second cross valve 80, pipeline 31 enters second heat exchanger 6, carry out indirect heat exchange with water therein, produce low-temperature water heating, cold-producing medium becomes refrigerant liquid after emitting heat, enter throttle mechanism 5 again by throttling, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 through piping 42, therein behind the heat by indirect heat exchange absorption chamber outer air or indoor exhaust wind, become the low-temperature low-pressure refrigerant steam, refrigerant vapour is again through piping 41, the passage 81 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes heat supply simultaneously in a winter and produces the low-temperature water heating circulation.
3. winter frost removing circulation
Its circulation loop is identical with the winter frost removing circulation of embodiment 1.During work, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal; When user side heat exchanger 3 is cold-producing medium-air heat exchanger, be to guarantee defrosting effect and shorten defrosting time, the blower fan of its air side or fan should be out of service.Its course of work is as follows:
The low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 74 of first cross valve 70, pipeline 64, user side heat exchanger 3, throttle mechanism 4, pipeline 62, the passage 82 of second cross valve 80, pipeline 41 enters heat source side heat exchanger 2, emit heat by indirect heat exchange therein, heat source side heat exchanger 2 is defrosted, cold-producing medium becomes refrigerant liquid after emitting heat, enter throttle mechanism 5 by throttling through piping 42 again, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter second heat exchanger 6 again, carry out indirect heat exchange with low-temperature water heating, become the low-temperature low-pressure refrigerant steam after absorbing its heat, refrigerant vapour is again through piping 31, the passage 84 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes defrost cycle one time.
Identical with embodiment 1, in implementation process, heat source side heat exchanger 2 and the link position of second heat exchanger 6 in device can exchange, after the exchange, have identical function with present embodiment, when realizing same function, each equipment role is also identical, but, the passage difference that cold-producing medium is walked by second cross valve 80.
Embodiment 9
Shown in Figure 2, user side heat exchanger 3, heat source side heat exchanger 2 are cold-producing medium-air heat exchangers, and second heat exchanger 6 is cold-producing medium-water-to-water heat exchangers.Compare with embodiment 8, its difference is to have increased by the first flow direction control valve 7-1, and it and user side heat exchanger 3, throttle mechanism 4 are connected in parallel, and miscellaneous equipment and connected mode in the device are identical with embodiment 8.Its course of work is as follows:
1. refrigeration and recuperation of heat circulation in summer
1) summer normal refrigeration and recuperation of heat circulation
During work, the first flow direction control valve 7-1 closes, throttle mechanism 4 operate as normal, and throttle mechanism 5 standard-sized sheets, therefore, its summer, normal refrigeration was normally freezed identical with the recuperation of heat circulation with the recuperation of heat circulation with embodiment 8 summers.
2) produce the low-temperature water heating circulation summer fast
In the summer operation process, when requiring to provide low-temperature water heating fast, embodiment 9 with the difference that embodiment 8 exists is: throttle mechanism 4 cuts out, the first flow direction control valve 7-1 opens, therefore from the low-temperature low-pressure refrigerant steam of heat source side heat exchanger 2 without user side heat exchanger 3, and pass through from the first flow direction control valve 7-1 bypass, and other course of work in the circulation is identical with the circulation of quick production in 8 summers of embodiment low-temperature water heating.
Because in cyclic process, the refrigerant vapour of low-temp low-pressure is without user side heat exchanger 3, and therefore, embodiment 9 produces the low-temperature water heating circulation time fast in summer, can reduce the pressure drop in the flow of refrigerant process, improves the pressure of inspiration(Pi) of compressor 1.
2. winter heating and recuperation of heat circulation
1) normally heats winter with recuperation of heat and circulate
During work, the first flow direction control valve 7-1 closes, throttle mechanism 4 standard-sized sheets, and throttle mechanism 5 operate as normal, therefore, embodiment normally heats normally to heat for 8 winters with embodiment with the course of work of recuperation of heat circulation and circulate identical with recuperation of heat 9 winter.
2) produce the low-temperature water heating circulation winter fast
In the winter operation process, when requiring to provide low-temperature water heating fast, embodiment 9 with the difference that embodiment 8 exists is: throttle mechanism 4 cuts out, the first flow direction control valve 7-1 opens, therefore from the high-temperature high-pressure refrigerant superheated vapor of compressor 1 without user side heat exchanger 3, and pass through from the first flow direction control valve 7-1 bypass, other course of work in the circulation is identical with the circulation of quick production in 8 winters of embodiment low-temperature water heating.
Because in cyclic process, the high-temperature high-pressure refrigerant superheated vapor is without user side heat exchanger 3, therefore, embodiment 9 produces the low-temperature water heating circulation time in the winter time fast, can reduce the pressure drop in the flow of refrigerant process, also can utilize the first flow direction control valve 7-1 that the refrigerant vapour flow by user side heat exchanger 3 is regulated, as described below.
3) heat supply simultaneously in winter and the circulation of production low-temperature water heating
During work, throttle mechanism 4 is opened, throttle mechanism 5 operate as normal, and the first flow direction control valve 7-1 is operate as normal also, is used to regulate the refrigerant vapour flow by the user side heat exchanger 3 and the first flow direction control valve 7-1.
During operation, the high-temperature high-pressure refrigerant superheated vapor that comes out from compressor 1 is divided into two parts, the part of refrigerant steam enters user side heat exchanger 3, carry out indirect heat exchange with air, be user's heat supply, this a part of refrigerant vapour becomes refrigerant liquid after user side heat exchanger 3 is emitted heat, after wherein coming out, mix with another part refrigerant vapour from the first flow direction control valve 7-1 bypass, enter second heat exchanger 6 again and carry out indirect heat exchange with water, produce low-temperature water heating, therefore can realize heat supply simultaneously and produce low-temperature water heating.Except above difference, other in the circulation loop partly with present embodiment in winter normally heat identical with the recuperation of heat circulation.Its course of work is as follows:
The low-temperature low-pressure refrigerant steam is compressed into the high-temperature high-pressure refrigerant superheated vapor after piping 63 enters compressor 1, superheated vapor is divided into two the tunnel behind the passage 74 of piping 60, first cross valve 70, pipeline 64; One road refrigerant vapour enters in the user side heat exchanger 3, carry out indirect heat exchange with air, be user's heat supply, this road refrigerant vapour becomes refrigerant liquid after user side heat exchanger 3 is emitted heat, mix with another road refrigerant vapour through throttle mechanism 4 again from the first flow direction control valve 7-1 bypass, mix after piping 62, the passage 83 of second cross valve 80, pipeline 31 enters second heat exchanger 6, carry out indirect heat exchange with water therein, produce low-temperature water heating, and cold-producing medium becomes refrigerant liquid after emitting heat, enter throttle mechanism 5 again by throttling, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 through piping 42, carry out indirect heat exchange with outdoor air or indoor exhaust wind, become the low-temperature low-pressure refrigerant steam behind the heat of absorption air, again through piping 41, the passage 81 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes heat supply simultaneously in a winter and produces the low-temperature water heating circulation.
3. winter frost removing circulation
During work, the first flow direction control valve 7-1 opens, throttle mechanism 4 cuts out, throttle mechanism 5 operate as normal, therefore in defrost process, the refrigerant superheat steam that comes out from compressor 1 is without user side heat exchanger 3 and throttle mechanism 4, and from the first flow direction control valve 7-1 bypass, so can avoid the heat release of the refrigerant superheat steam that comes out from compressor 1 at user side heat exchanger 3, improve the efficient of defrosting, shorten the time of defrosting.Except this difference, in embodiment 9, other course of work of defrost cycle is identical with embodiment 8.
In implementation process, when user side heat exchanger 3 is cold-producing medium-water-to-water heat exchanger, compare with embodiment 8, in the defrost cycle course of work, embodiment 9 can avoid the heat exchange between refrigerant vapour and the water in the winter time.
Embodiment 10
Shown in Figure 6.User side heat exchanger 3, heat source side heat exchanger 2 are cold-producing medium-air heat exchangers, and second heat exchanger 6 is cold-producing medium-water-to-water heat exchangers.On system formed, it was compared with embodiment 9, has increased by the second flow direction control valve 7-2, the 9th flow direction control valve 7-9.On function, it in the summer course of work, can also realize freezing simultaneously and producing low-temperature water heating except having embodiment 9 described functions.
In the running, when the second flow direction control valve 7-2 opens, when the 9th flow direction control valve 7-9 closes, the summer of embodiment 10 normal refrigeration and recuperation of heat circulation, summer are produced the low-temperature water heating circulation fast, normally heat winter with produce low-temperature water heating circulation, heat supply simultaneously in winter fast in recuperation of heat circulation, winter and produce the circulation loop that low-temperature water heating circulation, winter frost removing circulate identical with the course of work with embodiment 9 described respective cycle.Compare with embodiment 9, the function that embodiment 10 increases is: freeze simultaneously summer and produce low-temperature water heating and circulate.In addition, also has an operating scheme of being more convenient for controlling for heat supply simultaneously in winter and the circulation of production low-temperature water heating.
1) freezes simultaneously summer and produce low-temperature water heating circulation
During work, the first flow direction control valve 7-1, the 9th flow direction control valve 7-9 open, and the second flow direction control valve 7-2 closes, throttle mechanism 4,5 operate as normal.Its circulation loop is as follows:
The outlet of compressor 1 links to each other with pipeline 32 by pipeline 60, the passage 71 of first cross valve 70, pipeline 61, the passage 84 of second cross valve 80, pipeline 31, second heat exchanger 6, and pipeline 32 is divided into two the tunnel.Passage 82, pipeline 62, the first flow direction control valve 7-1 of throttle mechanism 5, pipeline 42, heat source side heat exchanger 2, pipeline 41, second cross valve 80 of leading up to links to each other with pipeline 64; Another road links to each other with pipeline 64 by the 9th flow direction control valve 7-9, throttle mechanism 4, user side heat exchanger 3.Pipeline 64 links to each other with the inlet of compressor 1 by passage 73, the pipeline 63 of first cross valve 70, constitutes the low-temperature water heating circulation of freezing simultaneously summer and produce, and satisfies user's refrigeration and low-temperature water heating requirement simultaneously.
During work, the low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor enters second heat exchanger 6 through passage 71, pipeline 61, the passage 84 of second cross valve 80, the pipeline 31 of piping 60, first cross valve 70 and carries out indirect heat exchange with water, produce low-temperature water heating, and refrigerant vapour becomes refrigerant liquid after emitting heat, and refrigerant liquid goes out second heat exchanger 6 after piping 32 is divided into two the tunnel.One road refrigerant liquid by throttle mechanism 5 throttlings after, become the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 through piping 42 and carry out indirect heat exchange with outdoor air or indoor exhaust wind, after cold-producing medium absorbs the heat of air, become the low-temperature low-pressure refrigerant steam, passage 82, pipeline 62, the first flow direction control valve 7-1 through piping 41, second cross valve 80 enters pipeline 64 again; Another road refrigerant liquid enters throttle mechanism 4 by throttling through the 9th flow direction control valve 7-9, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter user side heat exchanger 3 again, absorb user's heat therein by indirect heat exchange, be user's cooling, after cold-producing medium absorbs user's heat, become the low-temperature low-pressure refrigerant steam, also enter pipeline 64, after first via refrigerant mixed, again through piping 64, the passage 73 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishing freezes simultaneously and produce low-temperature water heating a summer circulates.
During design, in order to satisfy the needs that customer charge changes, compressor 1 can adopt frequency-changeable compressor.
2) heat supply simultaneously in winter and production low-temperature water heating circulation (alternative plan)
Embodiment heat supply simultaneously in 9 described winter and the circulation of production low-temperature water heating also can be used for present embodiment, but in the present embodiment, also have alternative plan.During alternative plan work, the first flow direction control valve 7-1, the 9th flow direction control valve 7-9 open, and the second flow direction control valve 7-2 closes, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal.
Its circulation loop is as follows:
The outlet of compressor 1 is divided into two the tunnel by passage 74, the pipeline 64 of pipeline 60, first cross valve 70.Leading up to user side heat exchanger 3, throttle mechanism 4, the 9th flow direction control valve 7-9 links to each other with pipeline 32; Another road links to each other with pipeline 32 by the first flow direction control valve 7-1, pipeline 62, the passage 83 of second cross valve 80, pipeline 31, second heat exchanger 6.Pipeline 32 links to each other with heat source side heat exchanger 2 by throttle mechanism 5, pipeline 42, heat source side heat exchanger 2 links to each other with the inlet of compressor 1 by pipeline 41, the passage 81 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63, constitute heat supply simultaneously in a winter and produce the low-temperature water heating circulation, realize heat supply simultaneously and produce low-temperature water heating.
During work, the low-temperature low-pressure refrigerant steam is compressed into the high-temperature high-pressure refrigerant superheated vapor after piping 63 enters compressor 1, and superheated vapor is divided into two the tunnel through passage 74, the pipeline 64 of piping 60, first cross valve 70.One tunnel refrigerant superheat steam enters user side heat exchanger 3 and carries out indirect heat exchange with air, be user's heat supply, and superheated vapor becomes refrigerant liquid after emitting heat, and refrigerant liquid enters pipeline 32 through throttle mechanism 4, the 9th flow direction control valve 7-9; Another road refrigerant superheat steam is through the first flow direction control valve 7-1, pipeline 62, the passage 83 of second cross valve 80, pipeline 31 enters second heat exchanger 6 and carries out indirect heat exchange with water, water is heated to form low-temperature water heating, and superheated vapor becomes refrigerant liquid after emitting heat, enter pipeline 32 and first via refrigerant mixed again, mixed refrigerant liquid enters throttle mechanism 5 by throttling, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 through piping 42 again and carry out indirect heat exchange with outdoor air or indoor exhaust wind, after absorbing the heat of air, become the low-temperature low-pressure refrigerant steam, again through piping 41, the passage 81 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes heat supply simultaneously in a winter and produces the low-temperature water heating circulation.
In this programme, rely on the dibit control method of the first flow direction control valve 7-1, the 9th flow direction control valve 7-9 Push And Release just can control the heating load of user side heat exchanger 3, and second heat exchanger 6 add heat, simple and convenient.
Fig. 7 is another scheme of present embodiment.In this scheme, heat source side heat exchanger 2 is cold-producing medium-water-to-water heat exchangers, second heat exchanger 6 is cold-producing medium-air heat exchangers, the end of the 9th flow direction control valve 7-9 links to each other with pipeline between the throttle mechanism 4 and the second flow direction control valve 7-2, the other end links to each other with pipeline between throttle mechanism 5 and the heat source side heat exchanger 2, and they have the 10 identical functions with embodiment.
Embodiment 11
Shown in Figure 8.Second heat exchanger 6 is cold-producing medium-water-to-water heat exchangers, adopts storage heat exchanger usually, and heat source side heat exchanger 2, user side heat exchanger 3 are cold-producing medium-air heat exchangers.
It and embodiment 10 have identical functions.On system forms, with the difference of embodiment 5 be: increased the 6th flow direction control valve 7-6, the 7th flow direction control valve 7-7, the 8th flow direction control valve 7-8.Its working cycles is as follows:
1. refrigeration and recuperation of heat circulation in summer
1) summer normal refrigeration and recuperation of heat circulation
During work, the 6th flow direction control valve 7-6, the 7th flow direction control valve 7-7 close, and the 8th flow direction control valve 7-8 opens, throttle mechanism 5 standard-sized sheets, throttle mechanism 4 operate as normal.
The summer of its circulation loop and the course of work and embodiment 5, normally refrigeration was identical with the recuperation of heat circulation.
2) produce the low-temperature water heating circulation summer fast
During work, the 6th flow direction control valve 7-6 opens, and other flow direction control valve is closed, and throttle mechanism 4 is not worked, throttle mechanism 5 operate as normal.
Its circulation loop is as follows: the outlet of compressor 1 links to each other with second heat exchanger 6 by pipeline 60, the passage 71 of first cross valve 70, pipeline 61, the passage 81 of second cross valve 80, pipeline 41, second heat exchanger 6 links to each other with throttle mechanism 5 by pipeline 42, throttle mechanism 5 links to each other with heat source side heat exchanger 2, heat source side heat exchanger 2 links to each other with the inlet of compressor 1 by the 6th flow direction control valve 7-6, pipeline 36, pipeline 64, the passage 73 of first cross valve 70, pipeline 63, constitute and produce the low-temperature water heating circulation fast a summer, realize producing fast low-temperature water heating.
During work, the low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 71 of first cross valve 70, pipeline 61, the passage 81 of second cross valve 80, pipeline 41 enters second heat exchanger 6 and carries out indirect heat exchange with water, water is heated to form low-temperature water heating, and superheated vapor becomes refrigerant liquid after emitting heat, refrigerant liquid enters throttle mechanism 5 by throttling through piping 42, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 and carry out indirect heat exchange with outdoor air or indoor exhaust wind, after absorbing the heat of air, become the low-temperature low-pressure refrigerant steam, again through the 6th flow direction control valve 7-6, pipeline 36, pipeline 64, the passage 73 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes and produces the low-temperature water heating circulation summer fast.
3) freeze simultaneously summer and produce low-temperature water heating circulation
During work, the 6th flow direction control valve 7-6, the 7th flow direction control valve 7-7 open, and the 8th flow direction control valve 7-8 closes, and throttle mechanism 4,5 is operate as normal all.
Its circulation loop is as follows: the outlet of compressor 1 links to each other with pipeline 42 by pipeline 60, the passage 71 of first cross valve 70, pipeline 61, the passage 81 of second cross valve 80, pipeline 41, second heat exchanger 6, and pipeline 42 is divided into two the tunnel.Leading up to throttle mechanism 5, heat source side heat exchanger 2, the 6th flow direction control valve 7-6, pipeline 36 links to each other with pipeline 64; Another road links to each other with pipeline 64 by the 7th flow direction control valve 7-7, pipeline 34, throttle mechanism 4, pipeline 31, the passage 83 of second cross valve 80, pipeline 62, user side heat exchanger 3.Pipeline 64 links to each other with the inlet of compressor 1 by passage 73, the pipeline 63 of first cross valve 70, constitutes the low-temperature water heating circulation of freezing simultaneously summer and produce, and realizes freezing simultaneously and producing low-temperature water heating.
During work, the low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor enters second heat exchanger 6 through passage 71, pipeline 61, the passage 81 of second cross valve 80, the pipeline 41 of piping 60, first cross valve 70 and carries out indirect heat exchange with water, water is heated to form low-temperature water heating, and superheated vapor becomes refrigerant liquid after emitting heat, and refrigerant liquid is divided into two the tunnel behind piping 42.One the tunnel enters throttle mechanism 5 by throttling, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 again and carry out indirect heat exchange with outdoor air or indoor exhaust wind, after absorbing the heat of air, become the low-temperature low-pressure refrigerant steam, enter pipeline 64 through the 6th flow direction control valve 7-6, pipeline 36; Another road is through the 7th flow direction control valve 7-7, pipeline 34 enters throttle mechanism 4 by throttling, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, through piping 31, the passage 83 of second cross valve 80, pipeline 62 enters user side heat exchanger 3, absorb user's heat therein by indirect heat exchange, be user's cooling, after cold-producing medium absorbs user's heat, become the low-temperature low-pressure refrigerant steam and also enter pipeline 64, with after the first via refrigerant mixed through the passage 73 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishing freezes simultaneously and produce low-temperature water heating a summer circulates.
2. winter heating and recuperation of heat circulation
1) normally heats winter with recuperation of heat and circulate
During work, the 6th flow direction control valve 7-6, the 7th flow direction control valve 7-7 close, and the 8th flow direction control valve 7-8 opens, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal.
Its circulation loop circulates identical with normally heating in the course of work and the winter of embodiment 5 with recuperation of heat.
2) produce the low-temperature water heating circulation winter fast
During work, the 6th flow direction control valve 7-6, the 7th flow direction control valve 7-7 close, and the 8th flow direction control valve 7-8 opens, throttle mechanism 4 standard-sized sheets, and throttle mechanism 5 operate as normal, the blower fan or the fan of user side heat exchanger 3 are out of service.
Producing low-temperature water heating fast the winter of its circulation loop and the course of work and embodiment 5 circulates identical.
3) heat supply simultaneously in winter and the circulation of production low-temperature water heating
During work, the 6th flow direction control valve 7-6, the 7th flow direction control valve 7-7 close, and the 8th flow direction control valve 7-8 opens, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal.
Its circulation loop is identical with the circulation of production low-temperature water heating with the heat supply simultaneously in winter of embodiment 5 with the course of work.
3. winter frost removing circulation
During work, the 7th flow direction control valve 7-7, the 8th flow direction control valve 7-8 close, and the 6th flow direction control valve 7-6 opens, throttle mechanism 5 operate as normal, and throttle mechanism 4 is not worked.
Its circulation loop is as follows: the outlet of compressor 1 links to each other with heat source side heat exchanger 2 by pipeline 60, the passage 74 of first cross valve 70, pipeline 64, pipeline 36, the 6th flow direction control valve 7-6, heat source side heat exchanger 2 links to each other with second heat exchanger 6 by throttle mechanism 5, pipeline 42, second heat exchanger 6 links to each other with the inlet of compressor 1 by pipeline 41, the passage 81 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63, constitute a winter frost removing circulation, realize defrosting heat source side heat exchanger 2.
During work, the low-temperature low-pressure refrigerant steam is after piping 63 enters compressor 1, be compressed into the high-temperature high-pressure refrigerant superheated vapor, superheated vapor is through piping 60, the passage 74 of first cross valve 70, pipeline 64, pipeline 36, the 6th flow direction control valve 7-6 enters heat source side heat exchanger 2, heat source side heat exchanger 2 is defrosted, and superheated vapor becomes refrigerant liquid after emitting heat, enter throttle mechanism 5 again by throttling, cold-producing medium after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter second heat exchanger 6 through piping 42 again and carry out indirect heat exchange with water, after cold-producing medium absorbs the heat of water, become the low-temperature low-pressure refrigerant steam, again through piping 41, the passage 81 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, and so far finishes a winter frost removing circulation.
Embodiment 12
Shown in Figure 9.Second heat exchanger 6 is cold-producing medium-water-to-water heat exchangers, adopts storage heat exchanger usually, and heat source side heat exchanger 2, user side heat exchanger 3 are cold-producing medium-air heat exchangers.
It and embodiment 10 and 11 have identical functions, with the difference of embodiment 11 are: increased by the second flow direction control valve 7-2, the 5th flow direction control valve 7-5.Its working cycles is as follows:
1. refrigeration and recuperation of heat circulation in summer
1) summer normal refrigeration and recuperation of heat circulation
During work, the 5th flow direction control valve 7-5, the 6th flow direction control valve 7-6, the 7th flow direction control valve 7-7 close, and the second flow direction control valve 7-2, the 8th flow direction control valve 7-8 open, throttle mechanism 5 standard-sized sheets, throttle mechanism 4 operate as normal.
The summer of its circulation loop and the course of work and embodiment 11, normally refrigeration was identical with the recuperation of heat circulation.
2) produce the low-temperature water heating circulation summer fast
During work, the 5th flow direction control valve 7-5, the 7th flow direction control valve 7-7, the 8th flow direction control valve 7-8 close, and the 6th flow direction control valve 7-6 opens, throttle mechanism 5 operate as normal, and the second flow direction control valve 7-2, throttle mechanism 4 are not worked.
Producing low-temperature water heating fast the summer of its circulation loop and the course of work and embodiment 11 circulates identical.
3) freeze simultaneously summer and produce low-temperature water heating circulation
During work, the 5th flow direction control valve 7-5, the 8th flow direction control valve 7-8 close, and the second flow direction control valve 7-2, the 6th flow direction control valve 7-6, the 7th flow direction control valve 7-7 open throttle mechanism 4,5 operate as normal.
Its circulation loop freezes simultaneously with the course of work and the summer of embodiment 11 and produces low-temperature water heating and circulates identical.
2. winter heating and recuperation of heat circulation
1) normally heats winter with recuperation of heat and circulate
During work, the 5th flow direction control valve 7-5, the 6th flow direction control valve 7-6, the 7th flow direction control valve 7-7 close, and the second flow direction control valve 7-2, the 8th flow direction control valve 7-8 open, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal.
Its circulation loop circulates identical with normally heating in the course of work and the winter of embodiment 11 with recuperation of heat.
2) produce the low-temperature water heating circulation winter fast
During work, the second flow direction control valve 7-2, the 6th flow direction control valve 7-6, the 7th flow direction control valve 7-7 close, and the 5th flow direction control valve 7-5, the 8th flow direction control valve 7-8 open, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal.
Therefore, during work, high-temperature high-pressure refrigerant superheated vapor from compressor 1 passes through from the 5th flow direction control valve 7-5 bypass, and without user side heat exchanger 3, and other part of circulation loop and their course of work are identical with quick production in the winter low-temperature water heating circulation of embodiment 11.Because cold-producing medium is without user side heat exchanger 3, so can reduce the flow resistance of cold-producing medium.Particularly when user side heat exchanger 3 is cold-producing medium-water-to-water heat exchanger, this programme can avoid refrigerant vapour in user side heat exchanger 3 and the heat exchange between the water.
3) heat supply simultaneously in winter and the circulation of production low-temperature water heating
During work, the 6th flow direction control valve 7-6, the 7th flow direction control valve 7-7 close, and the second flow direction control valve 7-2, the 5th flow direction control valve 7-5, the 8th flow direction control valve 7-8 open throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal.
Its circulation loop is as follows: the outlet of compressor 1 links to each other with pipeline 64 by the passage 74 of pipeline 60, first cross valve 70, and pipeline 64 is divided into two the tunnel.Leading up to user side heat exchanger 3, the second flow direction control valve 7-2 links to each other with pipeline 62; Another road also links to each other with pipeline 62 by pipeline 36, the 5th flow direction control valve 7-5.Pipeline 62 links to each other with second heat exchanger 6 by passage 82, the pipeline 41 of second cross valve 80, second heat exchanger 6 links to each other with heat source side heat exchanger 2 by pipeline 42, throttle mechanism 5, heat source side heat exchanger 2 links to each other with the inlet of compressor 1 by the 8th flow direction control valve 7-8, pipeline 34, throttle mechanism 4, pipeline 31, the passage 84 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63, constitute heat supply simultaneously in a winter and produce the low-temperature water heating circulation, realize heat supply simultaneously and produce low-temperature water heating.
In running, utilize the second flow direction control valve 7-2, the 5th flow direction control valve 7-5 that the heating load of user side heat exchanger 3, the heat that adds of second heat exchanger 6 are regulated and controlled.
During work, the low-temperature low-pressure refrigerant steam is compressed into the high-temperature high-pressure refrigerant superheated vapor after piping 63 enters compressor 1, and superheated vapor is divided into two the tunnel behind the passage 74 of piping 60, first cross valve 70, pipeline 64.One road refrigerant vapour enters user side heat exchanger 3 and carries out indirect heat exchange with air, is user's heat supply, enters pipeline 62 through the second flow direction control valve 7-2 after this part refrigerant vapour is emitted heat; Another road refrigerant vapour is through piping 36, the 5th flow direction control valve 7-5 also enters pipeline 62, with first via refrigerant mixed after piping 62, the passage 82 of second cross valve 80, pipeline 41 enters second heat exchanger 6 and carries out indirect heat exchange with water, cold-producing medium becomes refrigerant liquid after emitting heat, enter throttle mechanism 5 by throttling through piping 42 again, refrigerant liquid after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 again and carry out indirect heat exchange with outdoor air or indoor exhaust wind, after cold-producing medium absorbs the heat of air, become the low-temperature low-pressure refrigerant steam, again through the 8th flow direction control valve 7-8, pipeline 34, throttle mechanism 4, pipeline 31, the passage 84 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, so far finish heat supply simultaneously in a winter and produce the low-temperature water heating circulation, realize heat supply simultaneously and produce low-temperature water heating.
3. winter frost removing circulation
During work, the 6th flow direction control valve 7-6 opens, and other flow direction control valve is closed, and throttle mechanism 4 is not worked, throttle mechanism 5 operate as normal.So its circulation loop is identical with the winter frost removing circulation of embodiment 11 with the course of work.
In implementation process, the link position of second flow direction control valve 7-2 shown in Figure 9 and user side heat exchanger 3 can exchange.After the exchange, the end of the second flow direction control valve 7-2 is connected with user side heat exchanger 3, and the other end links to each other with pipeline 36,64.
In implementation process, also has another kind of scheme, the difference of it and present embodiment is not have the second flow direction control valve 7-2, the 5th flow direction control valve 7-5 can adopt control valve, when producing low-temperature water heating circulation, heat supply simultaneously in winter in the winter time fast and producing the low-temperature water heating periodic duty, utilize its control to enter the refrigerant flow of user side heat exchanger 3; When producing the low-temperature water heating periodic duty fast in the winter time, the 5th flow direction control valve 7-5 standard-sized sheet, most refrigerant vapours pass through from the 5th flow direction control valve 7-5 bypass.In addition, during work, realize that the circulation loop of each function is identical with the corresponding circulation of the course of work and present embodiment.
Embodiment 13
Shown in Figure 10.It and embodiment 10,11 and 12 have identical functions, with the difference of embodiment 12 are: also have one the 9th flow direction control valve 7-9 in the device.
Produce the low-temperature water heating circulation fast in summer normal refrigeration and recuperation of heat circulation, summer, freeze summer simultaneously and produces the low-temperature water heating circulation, normally heat winter and recuperation of heat circulation, winter produce in the course of work that low-temperature water heating circulates, winter frost removing circulates fast, the 9th flow direction control valve 7-9 closes, so the circulation loop of these circulations is identical with the respective cycle of embodiment 12 with the course of work.
With the difference of embodiment 12 be: heat supply simultaneously in winter and the circulation of production low-temperature water heating, at this moment, the 5th flow direction control valve 7-5, the 8th flow direction control valve 7-8, the 9th flow direction control valve 7-9 open, the second flow direction control valve 7-2, the 6th flow direction control valve 7-6, the 7th flow direction control valve 7-7 close, throttle mechanism 4 standard-sized sheets, throttle mechanism 5 operate as normal.
Its circulation loop is as follows: the outlet of compressor 1 links to each other with pipeline 64 by the passage 74 of pipeline 60, first cross valve 70, and pipeline 64 is divided into two the tunnel.Leading up to user side heat exchanger 3, the 9th flow direction control valve 7-9 links to each other with pipeline 42; Another road also links to each other with pipeline 42 by pipeline 36, the 5th flow direction control valve 7-5, pipeline 62, the passage 82 of second cross valve 80, pipeline 41, second heat exchanger 6.Pipeline 42 links to each other with heat source side heat exchanger 2 by throttle mechanism 5, heat source side heat exchanger 2 links to each other with the inlet of compressor 1 by the 8th flow direction control valve 7-8, pipeline 34, throttle mechanism 4, pipeline 31, the passage 84 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63, constitute heat supply simultaneously in a winter and produce the low-temperature water heating circulation, realize heat supply simultaneously and produce low-temperature water heating.
In running, respectively the heating load of user side heat exchanger 3, the heat that adds of second heat exchanger 6 are regulated and controlled by the 9th flow direction control valve 7-9, the 5th flow direction control valve 7-5.The dibit control method control air themperature and the hot water temperature that can utilize out and close, simple and reliable.
During work, the low-temperature low-pressure refrigerant steam is compressed into the high-temperature high-pressure refrigerant superheated vapor after piping 63 enters compressor 1, and superheated vapor is divided into two the tunnel behind the passage 74 of piping 60, first cross valve 70, pipeline 64.One road refrigerant vapour enters user side heat exchanger 3 and carries out indirect heat exchange with air, is user's heat supply, becomes refrigerant liquid after this part refrigerant vapour is emitted heat, enters pipeline 42 through the 9th flow direction control valve 7-9; Another road refrigerant vapour is through piping 36, the 5th flow direction control valve 7-5, pipeline 62, the passage 82 of second cross valve 80, pipeline 41 enters second heat exchanger 6 and carries out indirect heat exchange with water, cold-producing medium becomes refrigerant liquid after emitting heat, also enter pipeline 42, with first via refrigerant mixed, mixed refrigerant liquid enters throttle mechanism 5 by throttling, refrigerant liquid after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, enter heat source side heat exchanger 2 again and carry out indirect heat exchange with outdoor air or indoor exhaust wind, after cold-producing medium absorbs the heat of air, become the low-temperature low-pressure refrigerant steam, again through the 8th flow direction control valve 7-8, pipeline 34, throttle mechanism 4, pipeline 31, the passage 84 of second cross valve 80, pipeline 61, the passage 72 of first cross valve 70, pipeline 63 enters compressor 1 and is compressed, so far finish heat supply simultaneously in a winter and produce the low-temperature water heating circulation, realize heat supply simultaneously and produce low-temperature water heating.
Embodiment 14
Shown in Figure 11.Second heat exchanger 6 is cold-producing medium-water-to-water heat exchangers, adopts storage heat exchanger usually, and heat source side heat exchanger 2, user side heat exchanger 3 are cold-producing medium-air heat exchangers.
It and embodiment 11 have identical function.When realizing same function, the effect of each equipment is also identical in the circulation.
On the circulation loop, their difference is: in embodiment 11, one end of throttle mechanism 4 links to each other with the passage of second cross valve 80 (83,84), and the other end links to each other with the passage (81,82) of second cross valve 80 by the 8th flow direction control valve 7-8, heat source side heat exchanger 2, throttle mechanism 5, second heat exchanger 6 successively; And in embodiment 14, one end of throttle mechanism 4 is to link to each other with the passage (81,82) of second cross valve 80, and the other end then is to link to each other with the passage (83,84) of second cross valve 80 by the 8th flow direction control valve 7-8, heat source side heat exchanger 2, throttle mechanism 5, second heat exchanger 6 successively; The 6th flow direction control valve 7-6, the 7th flow direction control valve 7-7 link position in these two embodiment is identical, that is: the end of the 7th flow direction control valve 7-7 links to each other with pipeline between the throttle mechanism 5 and second heat exchanger 6, the other end links to each other with pipeline between throttle mechanism 4 and the 8th flow direction control valve 7-8, the end of the 6th flow direction control valve 7-6 links to each other with pipeline between heat source side heat exchanger 2 and the 8th flow direction control valve 7-8, and the other end links to each other with pipeline between the user side heat exchanger 3 and first cross valve 70 by pipeline 36.Therefore, in the course of work, only difference is a cold-producing medium when passing through second cross valve 80, the passage difference of being walked.
For example: in the course of work of summer normal refrigeration and recuperation of heat circulation, after present embodiment enters pipeline 61 from the refrigerant superheat steam of compressor 1, be that passage 84 through second cross valve 80 enters second heat exchanger 6, and cold-producing medium by throttle mechanism 4 throttlings after, be that the passage 82 through second cross valve 80 enters pipeline 62; And embodiment 11 is different, after entering pipeline 61 from the refrigerant superheat steam of compressor 1, be that passage 81 through second cross valve 80 enters second heat exchanger 6, and be that passage 83 through second cross valve 80 enters pipeline 62 through the cold-producing medium after throttle mechanism 4 throttlings.Except that above difference, other course of work in the circulation is identical.When realizing other corresponding function, also there is similar situation.
In the actual application, embodiment 11 to embodiment 14 also has a kind of different scheme, and promptly heat source side heat exchanger 2 and the link position of second heat exchanger 6 in device exchange, and its function is also exchanged simultaneously.At this moment, heat source side heat exchanger 2 is cold-producing medium-water-to-water heat exchangers, and second heat exchanger 6 is cold-producing medium-air heat exchangers.These schemes also can realize the identical function with above-mentioned corresponding embodiment respectively, Figure 12, shown in Figure 13 be two examples wherein, wherein Figure 12 is corresponding with Fig. 8 among the embodiment 11, Figure 13 is corresponding with Figure 10 among the embodiment 13.
Embodiment 15
Shown in Figure 14.On system formed, it with the difference of embodiment 1 was: the 12 flow to control valve 7-12, the 13 flow direction control valve 7-13 and throttle mechanism 8 in addition in the device.The 12 flows to control valve 7-12 one end is connected with pipeline between second heat exchanger 6 and the throttle mechanism 5, and the 12 flows to the control valve 7-12 other end is connected with the 13 flow direction control valve 7-13 one end; The 13 flow direction control valve 7-13 other end is connected with pipeline between throttle mechanism 5 and the heat source side heat exchanger 2, throttle mechanism 8 one ends are connected with the 12 pipeline that flows between control valve 7-12 and the 13 flow direction control valve 7-13, throttle mechanism 8 other ends are connected with compressor 1, constitute the loop to compressor 1 internal spray cold-producing medium.
During work, a part of refrigerant liquid flows to control valve 7-12 through the 12 or the 13 flow direction control valve 7-13 enters throttle mechanism 8 by throttling, refrigerant liquid after the throttling becomes the lower gas-fluid two-phase mixture of temperature and pressure, be admitted to compressor 1 inside, after refrigerant mixed in the compression process, be compressed into the high-temperature high-pressure refrigerant superheated vapor, enter pipeline 60 again.
When heat source side heat exchanger 2, user side heat exchanger 3, second heat exchanger 6 all are cold-producing medium-air heat exchanger, except that above-mentioned difference, it is identical with embodiment 1 with the course of work with the circulation loop of winter frost removing circulation that its kind of refrigeration cycle in summer, winter heating circulate.During defrost cycle, the 12 flows to control valve 7-12 closes in the winter time, and the 13 flow direction control valve 7-13 opens, and cold-producing medium enters throttle mechanism 8 by the 13 flow direction control valve 7-13.In summer during kind of refrigeration cycle, cold-producing medium can flow to control valve 7-12 by the 12, also can enter throttle mechanism 8 by the 13 flow direction control valve 7-13.Heat circulation time in the winter time, the 12 flows to control valve 7-12 opens, and the 13 flow direction control valve 7-13 closes, and cold-producing medium flows to control valve 7-12 by the 12 and enters throttle mechanism 8.The 12 flow to control valve 7-12, the 13 flow direction control valve 7-13 can adopt magnetic valve or check valve.
Do not need the heat pump assembly that defrosts for winter, can not need the 12 to flow to control valve 7-12, the 13 flow direction control valve 7-13, one end of throttle mechanism 8 links to each other with compressor 1, the other end links to each other with pipeline between second heat exchanger 6 and the throttle mechanism 5, constitutes the loop to compressor 1 internal spray cold-producing medium.In implementation process, when second heat exchanger 6 exchanges with the function of heat source side heat exchanger 2, also have following connected mode: an end of throttle mechanism 8 links to each other with compressor 1, the other end links to each other with pipeline between heat source side heat exchanger 2 and the throttle mechanism 5, constitutes the loop to compressor 1 internal spray cold-producing medium.
Embodiment 16
Shown in Figure 15.The difference of it and embodiment 15 is: the loop that compressor 1 is cooled off flows to control valve 7-12, the 13 flow direction control valve 7-13, throttle mechanism 8 and cooling heat exchanger 9 by the 12 and forms, cooling heat exchanger 9 and compressor 1 be capable of being combined to become an integral body, utilizes cold-producing medium that compressor 1 is cooled off and recovery waste heat by the mode of indirect heat exchange.
During work, a part of refrigerant liquid flows to control valve 7-12 through the 12 or the 13 flow direction control valve 7-13 enters throttle mechanism 8 by throttling, refrigerant liquid after the throttling becomes the low-temp low-pressure gas-fluid two-phase mixture, entering 9 pairs of compressors 1 of cooling heat exchanger again cools off, cold-producing medium becomes refrigerant vapour after absorbing heat, enter pipeline 63 through piping 33 again, i.e. the aspirating air pipe of compressor 1.
When heat source side heat exchanger 2, user side heat exchanger 3, second heat exchanger 6 all are cold-producing medium-air heat exchanger, except that above-mentioned difference, it is identical with embodiment 1 with the course of work with the circulation loop of winter frost removing circulation that its kind of refrigeration cycle in summer, winter heating circulate.Be in operation, it is identical with embodiment 15 to flow to the method for controlling switch of control valve 7-12, the 13 flow direction control valve 7-13 to the 12, the 12 flows to control valve 7-12, the 13 flow direction control valve 7-13 also can adopt check valve.
For the heat pump assembly that does not need winter to defrost, the refrigerant loop that compressor 1 is cooled off also can not need the 12 to flow to control valve 7-12, the 13 flow direction control valve 7-13.The substitute is: refrigerant loop is made up of throttle mechanism 8, cooling heat exchanger 9 and compressor 1, and cooling heat exchanger 9 and compressor 1 are combined into an integral body, by the mode of indirect heat exchange compressor 1 is cooled off and recovery waste heat.
Its connected mode is as follows:
Cooling heat exchanger 9 and compressor 1 are combined into an integral body, its end links to each other with pipeline 63 by pipeline 33, the other end is connected with throttle mechanism 8, and throttle mechanism 8 other ends link to each other with pipeline between second heat exchanger 6 and the throttle mechanism 5, constitutes the refrigerant loop that compressor 1 is cooled off.
In implementation process, when second heat exchanger 6 exchanges with the function of heat source side heat exchanger 2, also have following connected mode: cooling heat exchanger 9 and compressor 1 are combined into an integral body, its end links to each other with pipeline 63 by pipeline 33, the other end is connected with throttle mechanism 8, throttle mechanism 8 other ends link to each other with pipeline between heat source side heat exchanger 2 and the throttle mechanism 5, constitute the refrigerant loop that compressor 1 is cooled off.
In embodiment 1 to embodiment 14, also can adopt embodiment 15 and embodiment 16 described refrigerant loop that compressor 1 is cooled off and waste heat recovery.
In above-mentioned technical scheme, when during as low-temperature heat source, during winter operation, defrosting with indoor exhaust wind, soil or water etc.
Heat source side heat exchanger 2, second heat exchanger 6 can be cold-producing medium-air heat exchanger, cold-producing medium-soil heat exchange device, cold-producing medium-water-to-water heat exchanger, also can be evaporating heat exchanger.
User side heat exchanger 3 can be cold-producing medium-air heat exchanger, also can be cold-producing medium-water-to-water heat exchanger.
Throttle mechanism 4,5,8 can be an electric expansion valve.
All flow direction control valves can be magnetic valves, and the first flow direction control valve 7-1, the 5th flow direction control valve 7-5 also can be control valves, the 12 flow to control valve 7-12, the 13 flow direction control valve 7-13 can also be a check valve.
Being used for carrying the air driven equipment of air can be blower fan or fan.
Compressor 1 can be a frequency-changeable compressor.

Claims (14)

1. a dual-purpose heat pump device for winter and summer comprises compressor (1), heat source side heat exchanger (2), user side heat exchanger (3), throttle mechanism (4) and first cross valve (70); It is characterized in that: further comprising second heat exchanger (6), throttle mechanism (5) and second cross valve (80); Described cross valve (70,80) be respectively equipped with four nodes, a node of first cross valve (70) is connected with compressor (1) output by pipeline (60), another node of first cross valve (70) is connected with compressor (1) input by pipeline (63), the 3rd node of first cross valve (70) is connected with user side heat exchanger (3) one ends by pipeline (64), the 4th node of first cross valve (70) is connected on the node of second cross valve (80) by pipeline (61), another node of second cross valve (80) is successively by pipeline (62), throttle mechanism (4) is connected with user side heat exchanger (3) other end, the 3rd node of second cross valve (80) is connected with heat source side heat exchanger (2) one ends, and heat source side heat exchanger (2) other end is successively by throttle mechanism (5), second heat exchanger (6) is connected with the 4th node of second cross valve (80);
Or first flow direction control valve (7-1) and user side heat exchanger (3) are set and throttle mechanism (4) is connected in parallel, first flow direction control valve (7-1) end is connected with pipeline (64) between first cross valve (70) and the user side heat exchanger (3), and first flow direction control valve (7-1) other end is connected with pipeline (62) between second cross valve (80) and the throttle mechanism (4).
2. a dual-purpose heat pump device for winter and summer comprises compressor (1), heat source side heat exchanger (2), user side heat exchanger (3), throttle mechanism (4) and first cross valve (70); It is characterized in that: further comprising second heat exchanger (6), throttle mechanism (5) and second cross valve (80); Described cross valve (70,80) be respectively equipped with four nodes, a node of first cross valve (70) is connected with compressor (1) output by pipeline (60), another node of first cross valve (70) is connected with compressor (1) input by pipeline (63), the 3rd node of first cross valve (70) is connected with user side heat exchanger (3) one ends by pipeline (64), the 4th node of first cross valve (70) is connected on the node of second cross valve (80) by pipeline (61), another node of second cross valve (80) is connected with user side heat exchanger (3) other end by pipeline (62), the 3rd node of second cross valve (80) is connected with heat source side heat exchanger (2) one ends, and heat source side heat exchanger (2) other end is successively by throttle mechanism (5), second heat exchanger (6), throttle mechanism (4) is connected with the 4th node of second cross valve (80);
Or first flow direction control valve (7-1) and user side heat exchanger (3) are set are connected in parallel;
Or second flow direction control valve (7-2) and user side heat exchanger (3) are set are connected in series, user side heat exchanger (3) other end and second flow direction control valve (7-2) other end are connected in parallel with first flow direction control valve (7-1) respectively simultaneously.
3. a dual-purpose heat pump device for winter and summer comprises compressor (1), heat source side heat exchanger (2), user side heat exchanger (3), throttle mechanism (4) and first cross valve (70); It is characterized in that: further comprising second heat exchanger (6), throttle mechanism (5) and second cross valve (80); Described cross valve (70,80) be respectively equipped with four nodes, a node of first cross valve (70) is connected with compressor (1) output by pipeline (60), another node of first cross valve (70) is connected with compressor (1) input by pipeline (63), the 3rd node of first cross valve (70) is connected with user side heat exchanger (3) one ends by pipeline (64), the 4th node of first cross valve (70) is connected on the node of second cross valve (80) by pipeline (61), another node of second cross valve (80) is connected with user side heat exchanger (3) other end by pipeline (62), the 3rd node of second cross valve (80) is connected with second heat exchanger (6) one ends, and second heat exchanger (6) other end is successively by throttle mechanism (5), heat source side heat exchanger (2), throttle mechanism (4) is connected with the 4th node of second cross valve (80);
Or first flow direction control valve (7-1) and user side heat exchanger (3) are set are connected in parallel;
Or second flow direction control valve (7-2) and user side heat exchanger (3) are set are connected in series, user side heat exchanger (3) other end and second flow direction control valve (7-2) other end are connected in parallel with first flow direction control valve (7-1) respectively simultaneously.
4. according to claim 1 or 2 or 3 described dual-purpose heat pump device for winter and summer, it is characterized in that described heat source side heat exchanger (2) and second heat exchanger (6) are installed in the same housing.
5. dual-purpose heat pump device for winter and summer according to claim 4 is characterized in that described heat source side heat exchanger (2) and second heat exchanger (6) are cold-producing medium-air heat exchanger, and wherein at least one air driven equipment provides air.
6. a dual-purpose heat pump device for winter and summer comprises compressor (1), heat source side heat exchanger (2), user side heat exchanger (3), throttle mechanism (4) and first cross valve (70); It is characterized in that: further comprising second heat exchanger (6), throttle mechanism (5), second cross valve (80), first flow direction control valve (7-1), second flow direction control valve (7-2) and the 9th flow direction control valve (7-9); Described cross valve (70,80) be respectively equipped with four nodes, a node of first cross valve (70) is connected with compressor (1) output by pipeline (60), another node of first cross valve (70) is connected with compressor (1) input by pipeline (63), the 3rd node of first cross valve (70) is connected with user side heat exchanger (3) one ends by pipeline (64), the 4th node of first cross valve (70) is connected on the node of second cross valve (80) by pipeline (61), another node of second cross valve (80) is successively by pipeline (62), second flow direction control valve (7-2), throttle mechanism (4) is connected with user side heat exchanger (3) other end, the 3rd node of second cross valve (80) is connected with heat source side heat exchanger (2) one ends, heat source side heat exchanger (2) other end is successively by throttle mechanism (5), second heat exchanger (6) is connected with the 4th node of second cross valve (80), described first flow direction control valve (7-1) end is connected with pipeline (64) between first cross valve (70) and the user side heat exchanger (3), first flow direction control valve (7-1) other end is connected with pipeline (62) between second cross valve (80) and second flow direction control valve (7-2), the 9th flow direction control valve (7-9) end is connected with pipeline between throttle mechanism (4) and second flow direction control valve (7-2), and the 9th flow direction control valve (7-9) other end is connected with pipeline between throttle mechanism (5) and second heat exchanger (6);
Or the 9th flow direction control valve (7-9) end is connected with pipeline between throttle mechanism (4) and second flow direction control valve (7-2), and the 9th flow direction control valve (7-9) other end is connected with pipeline between throttle mechanism (5) and the heat source side heat exchanger (2).
7. a dual-purpose heat pump device for winter and summer comprises compressor (1), heat source side heat exchanger (2), user side heat exchanger (3), throttle mechanism (4) and first cross valve (70); It is characterized in that: further comprising second heat exchanger (6), throttle mechanism (5), second cross valve (80), the 6th flow direction control valve (7-6), the 7th flow direction control valve (7-7) and the 8th flow direction control valve (7-8); Described cross valve (70,80) be respectively equipped with four nodes, a node of first cross valve (70) is connected with compressor (1) output by pipeline (60), another node of first cross valve (70) is connected with compressor (1) input by pipeline (63), the 3rd node of first cross valve (70) is connected with user side heat exchanger (3) one ends by pipeline (64), the 4th node of first cross valve (70) is connected on the node of second cross valve (80) by pipeline (61), another node of second cross valve (80) is connected with user side heat exchanger (3) other end by pipeline (62), the 3rd node of second cross valve (80) is connected with second heat exchanger (6) one ends, second heat exchanger (6) other end is successively by throttle mechanism (5), heat source side heat exchanger (2), the 8th flow direction control valve (7-8), throttle mechanism (4) is connected with the 4th node of second cross valve (80), described the 7th flow direction control valve (7-7) end is connected with pipeline between throttle mechanism (5) and second heat exchanger (6), the 7th flow direction control valve (7-7) other end is connected with pipeline between throttle mechanism (4) and the 8th flow direction control valve (7-8), the 6th flow direction control valve (7-6) end is connected with pipeline between heat source side heat exchanger (2) and the 8th flow direction control valve (7-8), and the 6th flow direction control valve (7-6) other end is connected with pipeline (64) between user side heat exchanger (3) and first cross valve (70) by pipeline (36);
Or between pipeline (36) and pipeline (62), bypass is set and is connected, the 5th flow direction control valve (7-5) is set in bypass;
Or between pipeline (36) and pipeline (62), bypass is set and is connected, the 5th flow direction control valve (7-5) is set in bypass, second flow direction control valve (7-2) is connected in series with user side heat exchanger (3), second flow direction control valve (7-2) other end and user side heat exchanger (3) other end be while and pipeline (36,64) respectively, and the 5th flow direction control valve (7-5) is connected with pipeline (62);
Or between pipeline (36) and pipeline (62), bypass is set and is connected, the 5th flow direction control valve (7-5) is set in bypass, second flow direction control valve (7-2) is connected in series with user side heat exchanger (3), second flow direction control valve (7-2) end is connected with user side heat exchanger (3), second flow direction control valve (7-2) other end is connected with pipeline (62) with the 5th flow direction control valve (7-5) simultaneously, the 9th flow direction control valve (7-9) end is connected with pipeline between user side heat exchanger (3) and second flow direction control valve (7-2), and the 9th flow direction control valve (7-9) other end is connected with pipeline between throttle mechanism (5) and second heat exchanger (6).
8. a dual-purpose heat pump device for winter and summer comprises compressor (1), heat source side heat exchanger (2), user side heat exchanger (3), throttle mechanism (4) and first cross valve (70); It is characterized in that: further comprising second heat exchanger (6), throttle mechanism (5), second cross valve (80), the 6th flow direction control valve (7-6), the 7th flow direction control valve (7-7) and the 8th flow direction control valve (7-8); Described cross valve (70,80) be respectively equipped with four nodes, a node of first cross valve (70) is connected with compressor (1) output by pipeline (60), another node of first cross valve (70) is connected with compressor (1) input by pipeline (63), the 3rd node of first cross valve (70) is connected with user side heat exchanger (3) one ends by pipeline (64), the 4th node of first cross valve (70) is connected on the node of second cross valve (80) by pipeline (61), another node of second cross valve (80) is connected with user side heat exchanger (3) other end by pipeline (62), the 3rd node of second cross valve (80) is connected with heat source side heat exchanger (2) one ends, heat source side heat exchanger (2) other end is successively by throttle mechanism (5), second heat exchanger (6), the 8th flow direction control valve (7-8), throttle mechanism (4) is connected with the 4th node of second cross valve (80), described the 7th flow direction control valve (7-7) end is connected with pipeline between throttle mechanism (5) and the heat source side heat exchanger (2), the 7th flow direction control valve (7-7) other end is connected with pipeline between throttle mechanism (4) and the 8th flow direction control valve (7-8), the 6th flow direction control valve (7-6) end is connected with pipeline between second heat exchanger (6) and the 8th flow direction control valve (7-8), and the 6th flow direction control valve (7-6) other end is connected with pipeline (64) between user side heat exchanger (3) and first cross valve (70) by pipeline (36);
Or between pipeline (36) and pipeline (62), bypass is set and is connected, the 5th flow direction control valve (7-5) is set in bypass;
Or between pipeline (36) and pipeline (62), bypass is set and is connected, the 5th flow direction control valve (7-5) is set in bypass, second flow direction control valve (7-2) is connected in series with user side heat exchanger (3), second flow direction control valve (7-2) other end and user side heat exchanger (3) other end be while and pipeline (36,64) respectively, and the 5th flow direction control valve (7-5) is connected with pipeline (62);
Or between pipeline (36) and pipeline (62), bypass is set and is connected, the 5th flow direction control valve (7-5) is set in bypass, second flow direction control valve (7-2) is connected in series with user side heat exchanger (3), second flow direction control valve (7-2) end is connected with user side heat exchanger (3), second flow direction control valve (7-2) other end is connected with pipeline (62) with the 5th flow direction control valve (7-5) simultaneously, the 9th flow direction control valve (7-9) end is connected with pipeline between user side heat exchanger (3) and second flow direction control valve (7-2), and the 9th flow direction control valve (7-9) other end is connected with pipeline between throttle mechanism (5) and the heat source side heat exchanger (2).
9. according to claim 1 or 3 or 6 or 7 described dual-purpose heat pump device for winter and summer, it is characterized in that described second heat exchanger (6) is cold-producing medium-water-to-water heat exchanger, is used to produce low-temperature water heating.
10. according to claim 1 or 2 or 6 or 8 described dual-purpose heat pump device for winter and summer, it is characterized in that described heat source side heat exchanger (2) is cold-producing medium-water-to-water heat exchanger, is used to produce low-temperature water heating.
11. according to claim 1 or 2 or 3 or 6 or 7 or 8 described dual-purpose heat pump device for winter and summer, it is characterized in that the 12 flows to control valve (7-12) end and be connected with pipeline between second heat exchanger (6) and the throttle mechanism (5), the 12 flows to control valve (7-12) other end is connected with the 13 flow direction control valve (7-13) end, the 13 flow direction control valve (7-13) other end is connected with pipeline between throttle mechanism (5) and the heat source side heat exchanger (2), throttle mechanism (8) one ends are connected with the 12 pipeline that flows between control valve (7-12) and the 13 flow direction control valve (7-13), throttle mechanism (8) other end is connected with compressor (1), constitutes the loop to compressor (1) internal spray cold-producing medium.
12. according to claim 1 or 2 or 3 or 6 or 7 or 8 described dual-purpose heat pump device for winter and summer, it is characterized in that throttle mechanism 8 one ends are connected with compressor (1), throttle mechanism (8) other end is connected with pipeline between heat source side heat exchanger (2), throttle mechanism (5) and second heat exchanger (6) three, constitutes the loop to compressor (1) internal spray cold-producing medium.
13. according to claim 1 or 2 or 3 or 6 or 7 or 8 described dual-purpose heat pump device for winter and summer, it is characterized in that cooling heat exchanger (9) and compressor (1) are combined into an integral body, the 12 flows to control valve (7-12) end is connected with pipeline between second heat exchanger (6) and the throttle mechanism (5), the 12 flows to control valve (7-12) other end is connected with the 13 flow direction control valve (7-13) end, the 13 flow direction control valve (7-13) other end is connected with pipeline between throttle mechanism (5) and the heat source side heat exchanger (2), throttle mechanism (8) one ends are connected with the 12 pipeline that flows between control valve (7-12) and the 13 flow direction control valve (7-13), throttle mechanism (8) other end is connected with cooling heat exchanger (9) one ends, cooling heat exchanger (9) other end is connected with compressor (1) input pipeline (63), constitutes a refrigerant loop that compressor (1) inside is cooled off.
14. according to claim 1 or 2 or 3 or 6 or 7 or 8 described dual-purpose heat pump device for winter and summer, it is characterized in that cooling heat exchanger (9) and compressor (1) are combined into an integral body, throttle mechanism (8) one ends are connected with pipeline between heat source side heat exchanger (2), throttle mechanism (5) and second heat exchanger (6) three, throttle mechanism (8) other end is connected with cooling heat exchanger (9) one ends, cooling heat exchanger (9) other end is connected with compressor (1) input pipeline (63), constitutes a refrigerant loop that compressor (1) inside is cooled off.
CN 200710162570 2007-06-06 2007-10-11 Dual-purpose heat pump device for winter and summer Expired - Fee Related CN100529590C (en)

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CN 200710018006 CN101093117A (en) 2007-06-06 2007-06-06 Winter, summer bi service heat pump apparatus of air source
CN200710018006.1 2007-06-06
CN 200710162570 CN100529590C (en) 2007-06-06 2007-10-11 Dual-purpose heat pump device for winter and summer

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