CN205747568U - Superposition type CO with cross valve commutation defrosting2heat pump - Google Patents
Superposition type CO with cross valve commutation defrosting2heat pump Download PDFInfo
- Publication number
- CN205747568U CN205747568U CN201620678470.8U CN201620678470U CN205747568U CN 205747568 U CN205747568 U CN 205747568U CN 201620678470 U CN201620678470 U CN 201620678470U CN 205747568 U CN205747568 U CN 205747568U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- conventional refrigerant
- refrigerant passage
- cross valve
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses a kind of superposition type CO with cross valve commutation defrosting2Heat pump, belongs to heat pump and heats circulating technology, existing CO2Heat pump cannot defrost with cross valve reversing mode, and this utility model makes full use of the cross valve commutation Defrost technology that conventional coolant system is ripe, when system detect air source vaporizer reach defrosting require time, close the second compressor, allow CO2Heat circulation out of service, control the cross valve of conventional coolant system simultaneously so that conventional coolant system is from user hot water demand side draw heat, to remove the frost that air source heat exchanger surface is tied.This utility model can substantially reduce superposition type CO2The defrosting time of system and raising system defrosting efficiency, provide a kind of technical scheme for heat pump reliability service under extremely low ambient temperature.
Description
Technical field
This utility model relates to heat pump and heats circulating technology, particularly relates to realize one and runs on extremely low ambient temperature (-15
Below DEG C) under with cross valve commutation defrosting superposition type CO2Heat pump and superposition type CO2Defrost method.
Background technology
Due to CO2It is a few natural refrigerant without destruction several to environment, thus, hot thing based on its uniqueness
Rationality matter and the CO that carries out2The research of heat pump techniques becomes the heat subject of refrigerating and air conditioning industry.Though there being many CO now2Heat pump
The application case row of technology, but it is limited to some technical conditions, also have a longest segment distance from business widely, the most typically
Technological difficulties are exactly CO2System defrosting problem.Existing CO2Heat pump Defrost mode, as steam by-pass, electrical heating etc. defrost
Inefficiency, particularly when heat pump runs in extremely low ambient temperature, these traditional Defrost mode effect extreme differences.For running
The conventional coolant system that pressure reduction is less, can be commutated defrost by cross valve, but pressure reduction is up to the CO of the 4Mpa order of magnitude2
System, cross valve commutation cannot realize, and on the one hand requires the highest to the mechanical voltage endurance capability of cross valve, does not the most almost have
Having similar products, system stability can be transported by vaporizer and the exchange of the role of condenser that the opposing party causes because of cross valve commutation
Row produces impact.Therefore, make full use of the cross valve commutation Defrost technology that conventional coolant system is ripe, overcome CO2Heat pump system
System cannot seem particularly with the defect of the defrosting of cross valve reversing mode and the Defrost mode inefficiency such as steam by-pass, electrical heating
Important.
Utility model content
The technical problems to be solved in the utility model is existing CO2Heat pump cannot with cross valve reversing mode defrosting with
And the defect of the Defrost mode inefficiency such as steam by-pass, electrical heating, it is provided that a kind of superposition type CO defrosted with cross valve commutation2
Heat pump, it is ensured that CO2Heat pump reliability service under extremely low ambient temperature.
For reaching above-mentioned purpose, the superposition type CO defrosted with cross valve commutation of the present utility model2Heat pump includes:
First compressor, cross valve, heat exchanger, first throttle valve, second throttle, the 3rd choke valve, evaporative condenser,
First stop valve, the second stop valve, air source heat exchanger, the second compressor, described heat exchanger has conventional refrigerant passage, heat
Aquaporin, described evaporative condenser has conventional refrigerant passage, CO2Passage, described air source heat exchanger has conventional cold
Matchmaker's passage, CO2Passage；
Described the second compressor, the CO of evaporative condenser2Passage, second throttle, the CO of air source heat exchanger2Passage
Connect and compose the CO of low-temperature level the most by the road2Closed circuit；
Described the first compressor, cross valve, the conventional refrigerant passage of heat exchanger, first throttle valve, evaporative condenser
Conventional refrigerant passage connects and composes the conventional refrigerant circulation circuit of high-temperature level the most by the road, and the first described stop valve is arranged in
In order to close or to open the routine of described evaporative condenser on the pipeline at the conventional refrigerant passage place of described evaporative condenser
Refrigerant passage；The two ends of the conventional refrigerant passage of described air source heat exchanger are connected to described evaporative condenser by pipeline respectively
Conventional refrigerant passage and cross valve between, between the conventional refrigerant passage of described heat exchanger and first throttle valve and be connected to institute
State the pipeline between the conventional refrigerant passage of heat exchanger and first throttle valve and be provided with the 3rd choke valve, the second described stop valve
In order to close or to open described air source heat exchange on the pipeline at the conventional refrigerant passage place configuring described air source heat exchanger
The conventional refrigerant passage of device；
The conventional refrigerant passage of described heat exchanger, conventional refrigerant passage the changing by described cross valve of air source heat exchanger
To exchanging as vaporizer, condenser.
Preferably, the hot water channel of described heat exchanger is connected with a hot water demand side, regulates institute by described cross valve
State conventional refrigerant circulation circuit run with heating condition or reversely come for described air source from described hot water demand side draw heat
Heat exchanger defrosts.The cold-producing medium of described conventional refrigerant circulation circuit is the one in R417A, R134a, R410A, R407c.
Heat pump of the present utility model includes the CO of low-temperature level2The conventional refrigerant circulation of closed circuit and high-temperature level returns
Road, is operable with heating state of cyclic operation and Defrost operation operating mode, and according to the difference of outdoor environment temperature, Systematic selection is singly to heat
Circulation or overlapping heat endless form and run.Control when need to defrost cross valve commutation make heat exchanger run with the form of vaporizer,
Air source heat exchanger runs with the form of condenser, thus removes the frost that air source heat exchanger surface is tied.
This utility model can substantially reduce superposition type CO2The defrosting time of heat pump and raising system defrosting efficiency, for heat pump
System reliability service under extremely low ambient temperature provides technology and ensures.
Accompanying drawing explanation
Fig. 1 is this utility model superposition type CO with cross valve commutation defrosting2The systematic schematic diagram of heat pump；
Label declaration in figure: 1-the first compressor, 2-cross valve, 3-heat exchanger, 41-first throttle valve, 42-second throttles
Valve, 43-the 3rd choke valve, 5-evaporative condenser, 61-the first stop valve, 62-the second stop valve, 7-air source heat exchanger, 8-
Second compressor, 9-hot water demand side.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is described further.
The superposition type CO defrosted with cross valve commutation of the present utility model2Heat pump, as it is shown in figure 1, comprising:
First compressor 1, cross valve 2, heat exchanger 3, first throttle valve 41, second throttle the 42, the 3rd choke valve 43, steaming
Feel cold condenser the 5, first stop valve the 61, second stop valve 62, air source heat exchanger the 7, second compressor 8, heat exchanger 3 have often
Rule refrigerant passage, hot water channel, evaporative condenser 5 has conventional refrigerant passage, CO2Passage, air source heat exchanger 7 has routine
Refrigerant passage, CO2Passage；
Second compressor 8, the CO of evaporative condenser 52Passage, second throttle 42, the CO of air source heat exchanger 72Passage depends on
The secondary CO connecting and composing low-temperature level by the road2Closed circuit；
First compressor 1, cross valve 2, the conventional refrigerant passage of heat exchanger 3, first throttle valve 41, evaporative condenser 5
Conventional refrigerant passage connects and composes the conventional refrigerant circulation circuit of high-temperature level the most by the road, and the first stop valve 61 is arranged in evaporation
In order to close or to open the conventional refrigerant passage of evaporative condenser 5 on the pipeline at the conventional refrigerant passage place of condenser 5；Empty
The two ends of the conventional refrigerant passage of source of the gas heat exchanger 7 respectively by pipeline be connected to the conventional refrigerant passage of evaporative condenser 5 with
Between cross valve 2, between the conventional refrigerant passage of heat exchanger 3 and first throttle valve 41 and be connected to the conventional coolant of heat exchanger 3
Pipeline between passage and first throttle valve 41 is provided with the 3rd choke valve 43, and the second stop valve 62 configures air source heat exchanger 7
Conventional refrigerant passage place pipeline in order to close or to open the conventional refrigerant passage of air source heat exchanger 7；
The commutation that the conventional refrigerant passage of heat exchanger 3, the conventional refrigerant passage of air source heat exchanger 7 pass through cross valve 2 is mutual
Change as vaporizer, condenser.
First throttle valve 41 heats state of cyclic operation for regulation, and the 3rd choke valve 43 is used for regulating Defrost operation operating mode and relatively
High room temperature condition places an order and heats state of cyclic operation, with the difference of choke valve type selecting required under distinguishing system difference operation form.
The hot water channel of heat exchanger 3 is connected with a hot water demand side 9, regulates conventional refrigerant circulation circuit by cross valve 2
Run with heating condition or reversely defrost for air source heat exchanger 7 from hot water demand side 9 draw heat.Conventional refrigerant circulation returns
The cold-producing medium on road is the one in R417A, R134a, R410A, R407c.
The superposition type CO defrosted with cross valve commutation of the present utility model2Heat pump works in the following manner:
When relatively low ambient temperature (as when control system detects that ambient temperature is higher than-5 C), open the first stop valve
61, start first compressor the 1, second compressor 8, close the second stop valve 62, by the second compressor 8, evaporative condenser 5
CO2Passage, second throttle 42, the CO of air source heat exchanger 72Passage constitutes the CO of low-temperature level2Closed circuit, by the first compression
Machine 1, cross valve 2, the conventional refrigerant passage of heat exchanger 3, first throttle valve 41, the conventional refrigerant passage of evaporative condenser 5 are constituted
The conventional refrigerant circulation circuit of high-temperature level, system is with the CO of low-temperature level2Closed circuit and the conventional refrigerant circulation circuit of high-temperature level
The endless form that heats of overlapping is run；
When higher outdoor temperature (as when control system detects that ambient temperature is less than-5 C), close the first stop valve
61, the second compressor 8, opens the second stop valve 62, by the first compressor 1, cross valve 2, the conventional refrigerant passage of heat exchanger 3,
3rd choke valve 43, air source heat exchanger 7 conventional refrigerant passage constitute high-temperature level conventional refrigerant circulation circuit, system only with
The conventional refrigerant circulation circuit of high-temperature level is run；
When air source heat exchanger 7 reaches (being detected by control system) when defrosting requires, close the first stop valve 61, close
Second compressor 8, opens the second stop valve 62, controls cross valve 2 and commutates, by the first compressor 1, cross valve 2, air source heat exchange
The conventional refrigerant passage of device 7, the 3rd choke valve 43, the conventional refrigerant passage of heat exchanger 3 constitute defrosting and heat closed circuit so that
The conventional refrigerant passage of heat exchanger 3 runs with the form of vaporizer, and the conventional refrigerant passage of air source heat exchanger 7 is with condenser
Form is run, thus removes the frost that air source heat exchanger 7 surface is tied.
Although above content combines accompanying drawing and is described this utility model, but this utility model is not only limited to above-mentioned
Detailed description of the invention, above-mentioned detailed description of the invention is only schematically, and nonrestrictive, for the technology of this area
For personnel, the technical scheme of above-mentioned enforcement example still can be modified by it, thus all under this utility model objective
Any amendment of being made, equivalents etc., within broadly falling into protection domain of the present utility model.
Claims (3)
1. with the superposition type CO of cross valve commutation defrosting2Heat pump, is characterized in that including: the first compressor (1), cross valve (2), change
Hot device (3), first throttle valve (41), second throttle (42), the 3rd choke valve (43), evaporative condenser (5), the first stop valve
(61), the second stop valve (62), air source heat exchanger (7), the second compressor (8), described heat exchanger (3) has conventional coolant
Passage, hot water channel, described evaporative condenser (5) has conventional refrigerant passage, CO2Passage, described air source heat exchanger
(7) there is conventional refrigerant passage, CO2Passage；
Described the second compressor (8), the CO of evaporative condenser (5)2Passage, second throttle (42), air source heat exchanger (7)
CO2Passage connects and composes the CO of low-temperature level the most by the road2Closed circuit；
Described the first compressor (1), cross valve (2), the conventional refrigerant passage of heat exchanger (3), first throttle valve (41), evaporation
The conventional refrigerant passage of condenser (5) connects and composes the conventional refrigerant circulation circuit of high-temperature level, described first the most by the road
In order to close or to open institute on the pipeline at the conventional refrigerant passage place that stop valve (61) is arranged in described evaporative condenser (5)
State the conventional refrigerant passage of evaporative condenser (5)；The two ends of the conventional refrigerant passage of described air source heat exchanger (7) are passed through respectively
Pipeline is connected between the conventional refrigerant passage of described evaporative condenser (5) and cross valve (2), the routine of described heat exchanger (3)
Between refrigerant passage and first throttle valve (41) and be connected to the conventional refrigerant passage of described heat exchanger (3) and first throttle valve
(41) pipeline between is provided with the 3rd choke valve (43), and described the second stop valve (62) configures described air source heat exchanger
(7) on the pipeline at conventional refrigerant passage place in order to close or open described air source heat exchanger (7) conventional coolant lead to
Road；
The conventional refrigerant passage of described heat exchanger (3), the conventional refrigerant passage of air source heat exchanger (7) pass through described cross valve
(2) commutation is exchanged as vaporizer, condenser.
The superposition type CO defrosted with cross valve commutation the most according to claim 12Heat pump, is characterized in that: described heat exchanger
(3) hot water channel is connected with a hot water demand side (9), regulates described conventional refrigerant circulation circuit by described cross valve (2)
Run with heating condition or reversely to defrost for described air source heat exchanger (7) from described hot water demand side (9) draw heat.
The superposition type CO defrosted with cross valve commutation the most according to claim 12Heat pump, is characterized in that: described conventional coolant
The cold-producing medium of closed circuit is the one in R417A, R134a, R410A, R407c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678470.8U CN205747568U (en) | 2016-07-01 | 2016-07-01 | Superposition type CO with cross valve commutation defrosting2heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678470.8U CN205747568U (en) | 2016-07-01 | 2016-07-01 | Superposition type CO with cross valve commutation defrosting2heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205747568U true CN205747568U (en) | 2016-11-30 |
Family
ID=57379930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620678470.8U Withdrawn - After Issue CN205747568U (en) | 2016-07-01 | 2016-07-01 | Superposition type CO with cross valve commutation defrosting2heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205747568U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016802A (en) * | 2016-07-01 | 2016-10-12 | 杭州佳力斯韦姆新能源科技有限公司 | Cascade CO2 heat pump capable of achieving defrosting through reversing of four-way valve and defrosting method of cascade CO2 heat pump |
| CN107131681A (en) * | 2017-06-28 | 2017-09-05 | 李澎 | A kind of liquid heat exchange formula air source heat pump |
| CN108072173A (en) * | 2018-01-23 | 2018-05-25 | 浙江正理生能科技有限公司 | A kind of cascade refrigeration defrosting water heater |
-
2016
- 2016-07-01 CN CN201620678470.8U patent/CN205747568U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016802A (en) * | 2016-07-01 | 2016-10-12 | 杭州佳力斯韦姆新能源科技有限公司 | Cascade CO2 heat pump capable of achieving defrosting through reversing of four-way valve and defrosting method of cascade CO2 heat pump |
| CN107131681A (en) * | 2017-06-28 | 2017-09-05 | 李澎 | A kind of liquid heat exchange formula air source heat pump |
| CN107131681B (en) * | 2017-06-28 | 2023-02-24 | 李澎 | Liquid heat exchange type air source heat pump |
| CN108072173A (en) * | 2018-01-23 | 2018-05-25 | 浙江正理生能科技有限公司 | A kind of cascade refrigeration defrosting water heater |
| CN108072173B (en) * | 2018-01-23 | 2024-01-30 | 浙江正理生能科技有限公司 | Overlapping type refrigeration defrosting water heater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106016802A (en) | Cascade CO2 heat pump capable of achieving defrosting through reversing of four-way valve and defrosting method of cascade CO2 heat pump | |
| CN100535548C (en) | Ultralow temperature heat pump air conditioning system | |
| TW548389B (en) | Freezing device | |
| CN205747568U (en) | Superposition type CO with cross valve commutation defrosting2heat pump | |
| CN104913415A (en) | Energy storage-type air conditioning system | |
| CN204313531U (en) | Refrigerating circulatory device | |
| CN107036349A (en) | A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting | |
| KR20140090792A (en) | Alternation heat exchanger type hot gas defrosting heat-pump | |
| CN106225280A (en) | A kind of refrigeration or heat pump and a kind of Condensing units | |
| CN108119953A (en) | Splitting heat pump air conditioner device | |
| CN213480643U (en) | Heat pump system and air conditioning equipment | |
| CN104501406B (en) | For producing the multi-staged air source heat pump of high-temperature-hot-water | |
| JP2017187227A (en) | Cooling device | |
| CN204285882U (en) | A kind of supermarket cold chain system | |
| CN104896777B (en) | water chilling unit | |
| CN205373128U (en) | Low -temperature type intelligence trigeminy supplies heat pump set | |
| CN103712388A (en) | Novel defrosting system and control method thereof | |
| CN107023917A (en) | Air-conditioning refrigerator all-in-one and its progress control method | |
| CN208983653U (en) | A kind of multifunction refrigeration system | |
| CN104676962B (en) | Cold and hot cogeneration heat pump equipment | |
| CN106016420A (en) | Cascaded heat pump heating system and cascaded heat pump heating method | |
| CN106871347A (en) | A kind of integrated air conditioner heat pump system of multifunctional single compressor and control method | |
| CN106288532A (en) | Heat exchanger assembly, air cooler, refrigerating unit and control method thereof | |
| CN106288048A (en) | Dehumidifier and control method thereof | |
| CN206556302U (en) | Long-term refrigeration mode net for air-source heat pump units |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161130 Effective date of abandoning: 20180803 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20161130 Effective date of abandoning: 20180803 |