CN106016802B - With the superposition type CO of four-way valve commutation defrosting2Heat pump and superposition type CO2Defrost method - Google Patents
With the superposition type CO of four-way valve commutation defrosting2Heat pump and superposition type CO2Defrost method Download PDFInfo
- Publication number
- CN106016802B CN106016802B CN201610505209.2A CN201610505209A CN106016802B CN 106016802 B CN106016802 B CN 106016802B CN 201610505209 A CN201610505209 A CN 201610505209A CN 106016802 B CN106016802 B CN 106016802B
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- conventional refrigerant
- refrigerant passage
- valve
- air source
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000010257 thawing Methods 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003507 refrigerant Substances 0.000 claims description 123
- 230000008020 evaporation Effects 0.000 claims 2
- 238000001704 evaporation Methods 0.000 claims 2
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000002826 coolant Substances 0.000 abstract description 5
- 230000035800 maturation Effects 0.000 abstract description 2
- 108091006146 Channels Proteins 0.000 description 6
- 102000010637 Aquaporins Human genes 0.000 description 5
- 125000004122 cyclic group Chemical group 0.000 description 3
- 108010063290 Aquaporins Proteins 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- 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
- F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
-
- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
-
- 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
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a kind of superposition type CO with four-way valve commutation defrosting2Heat pump and superposition type CO2Defrost method belongs to heat pump heating circulating technology, existing CO2Heat pump system can not be defrosted with four-way valve reversing mode, and the present invention makes full use of the four-way valve of conventional coolant system maturation to commutate Defrost technology, and when system detectio to air-source evaporator, which reaches defrosting, to be required, the second compressor of closing allows CO2Heating cycle is out of service, while controlling the four-way valve of conventional coolant system 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.The present invention can substantially reduce superposition type CO2The defrosting time and raising system defrosting efficiency of system, a kind of technical solution is provided for reliability service of the heat pump system under extremely low environment temperature.
Description
Technical field
The present invention relates to heat pumps to heat circulating technology, more particularly to realizes that one kind running on extremely low environment temperature（- 15 DEG C with
Under）Under with four-way valve commutation defrosting superposition type CO2Heat pump and superposition type CO2Defrost method.
Background technology
Due to CO2It is a few to environment there are few the natural refrigerant of destruction, thus, it is based on its unique hot object
Rationality matter and the CO carried out2The research of heat pump techniques becomes the heat subject of refrigerating and air conditioning industry.Though there is many CO now2Heat pump
The application case of technology arranges, but is limited to some technical conditions, a distance also very long from extensive business, wherein typically
Technological difficulties are exactly CO2System defrosting problem.Existing CO2Heat pump system Defrost mode, such as steam by-pass, electrical heating defrosting
Inefficiency, especially when heat pump is when extremely low environment temperature is run, these traditional Defrost mode effects are very poor.For operation
The smaller conventional coolant system of pressure difference, can be by four-way valve commutation come defrost, but the CO of the 4Mpa orders of magnitude is up to for pressure difference2
System, four-way valve commutation cannot achieve, on the one hand very high to the requirement of the mechanical voltage endurance capability of four-way valve, almost not have now
There are similar products, the exchange of another party role of evaporator and condenser caused by four-way valve commutates, which can stablize system, transports
Row has an impact.Therefore, the four-way valve commutation Defrost technology for making full use of conventional coolant system maturation, overcomes CO2Heat pump system
System can not be defrosted with four-way valve reversing mode and the defect of the Defrost modes inefficiency such as steam by-pass, electrical heating seems particularly
It is important.
Invention content
The technical problem to be solved by the present invention is to existing CO2Heat pump system can not be defrosted and be steamed with four-way valve reversing mode
The defect of the Defrost modes inefficiency such as vapour bypass, electrical heating provides a kind of superposition type CO with four-way valve commutation defrosting2Heat pump
And superposition type CO2Defrost method, it is ensured that CO2Reliability service of the heat pump system under extremely low environment temperature.
In order to achieve the above objectives, the superposition type CO of the invention with four-way valve commutation defrosting2Heat pump includes：
First compressor, four-way valve, heat exchanger, first throttle valve, second throttle, third throttle valve, evaporative condenser,
First shut-off valve, the second shut-off valve, air source heat exchanger, the second compressor, the heat exchanger have conventional refrigerant passage, heat
Aquaporin, the evaporative condenser have conventional refrigerant passage, CO2Channel, the air source heat exchanger have conventional cold
Matchmaker channel, CO2Channel；
The CO of second compressor, evaporative condenser2Channel, second throttle, air source heat exchanger CO2Channel
Connect and compose the CO of low-temperature level by the road successively2Circulation loop；
First compressor, four-way 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 by the road successively, and first shut-off valve configuration exists
Closing or open the routine of the evaporative condenser on pipeline where the conventional refrigerant passage of the evaporative condenser
Refrigerant passage；The both ends of the conventional refrigerant passage of the air source heat exchanger pass through piping connection to the evaporative condenser respectively
Conventional refrigerant passage and four-way valve between, between the conventional refrigerant passage and first throttle valve of the heat exchanger and be connected to institute
The pipeline stated between the conventional refrigerant passage of heat exchanger and first throttle valve is equipped with third throttle valve, second shut-off valve
It configures on the pipeline where the conventional refrigerant passage of the air source heat exchanger closing or open the air-source heat exchange
The conventional refrigerant passage of device；
The conventional refrigerant passage of the heat exchanger, conventional refrigerant passage the changing by the four-way valve of air source heat exchanger
It is used as evaporator, condenser to exchanging.
Preferably, the hot water channel of the heat exchanger connect with a hot water demand side, passes through the four-way valve regulation institute
Conventional refrigerant circulation circuit is stated with heating condition operation or reversely draw heat comes for the air-source from the hot water demand side
Heat exchanger defrosts.The refrigerant of the routine refrigerant circulation circuit is one kind in R417A, R134a, R410A, R407c.
In order to achieve the above objectives, superposition type CO of the invention2Defrost method, the superposition type CO2Heat pump includes：
First compressor, four-way valve, heat exchanger, first throttle valve, second throttle, third throttle valve, evaporative condenser,
First shut-off valve, the second shut-off valve, air source heat exchanger, the second compressor, the heat exchanger have conventional refrigerant passage, heat
Aquaporin, the evaporative condenser have conventional refrigerant passage, CO2Channel, the air source heat exchanger have conventional cold
Matchmaker channel, CO2Channel；
The CO of second compressor, evaporative condenser2Channel, second throttle, air source heat exchanger CO2Channel
Connect and compose the CO of low-temperature level by the road successively2Circulation loop；
First compressor, four-way 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 by the road successively, and first shut-off valve configuration exists
Closing or open the routine of the evaporative condenser on pipeline where the conventional refrigerant passage of the evaporative condenser
Refrigerant passage；The both ends of the conventional refrigerant passage of the air source heat exchanger pass through piping connection to the evaporative condenser respectively
Conventional refrigerant passage and four-way valve between, between the conventional refrigerant passage and first throttle valve of the heat exchanger and be connected to institute
The pipeline stated between the conventional refrigerant passage of heat exchanger and first throttle valve is equipped with third throttle valve, second shut-off valve
It configures on the pipeline where the conventional refrigerant passage of the air source heat exchanger closing or open the air-source heat exchange
The conventional refrigerant passage of device；
The conventional refrigerant passage of the heat exchanger, conventional refrigerant passage the changing by the four-way valve of air source heat exchanger
It is used as evaporator, condenser to exchanging；
It is characterized in that：
When compared with low ambient temperature, first shut-off valve is opened, starts the first compressor, the second compressor, closes institute
The second shut-off valve is stated, by second compressor, the CO of evaporative condenser2Channel, second throttle, air source heat exchanger CO2
Channel constitutes the CO of low-temperature level2Circulation loop, by first compressor, four-way valve, the conventional refrigerant passage of heat exchanger,
The conventional refrigerant circulation circuit of the conventional refrigerant passage composition high-temperature level of one throttle valve, evaporative condenser, system is with low-temperature level
CO2The heating endless form of circulation loop and the conventional refrigerant circulation circuit overlapping of high-temperature level is run；
In higher outdoor temperature, first shut-off valve, the second compressor are closed, opens second shut-off valve, by
First compressor, four-way valve, the conventional refrigerant passage of heat exchanger, third throttle valve, the routine of air source heat exchanger are cold
Matchmaker channel constitutes the conventional refrigerant circulation circuit of high-temperature level, and system is only run with the conventional refrigerant circulation circuit of high-temperature level；
When the air source heat exchanger, which reaches defrosting, to be required, first shut-off valve is closed, closes second compression
Machine opens second shut-off valve, the four-way valve commutation is controlled, by first compressor, four-way valve, air source heat exchanger
Conventional refrigerant passage, third throttle valve, heat exchanger conventional refrigerant passage constitute defrosting heating circulation loop so that it is described to change
The conventional refrigerant passage of hot device is run in the form of evaporator, and the conventional refrigerant passage of the air source heat exchanger is with condenser
Form is run, to remove the frost that the air-source heat exchanger surface is tied.
The heat pump system of the present invention includes the CO of low-temperature level2The conventional refrigerant circulation circuit of circulation loop and high-temperature level, can
Heating state of cyclic operation and Defrost operation operating mode are worked in, according to the difference of outdoor environment temperature, Systematic selection is recycled with single heat
Or overlapping heating endless form operation.Control four-way valve, which commutates, when need to defrost makes heat exchanger be run in the form of evaporator, air
Source heat exchanger is run in the form of condenser, to remove the frost that air-source heat exchanger surface is tied.
The present invention can substantially reduce superposition type CO2The defrosting time and raising system defrosting efficiency of heat pump, are heat pump system
Reliability service under extremely low environment temperature provides technology guarantee.
Description of the drawings
Fig. 1 is the present invention with the superposition type CO of four-way valve commutation defrosting2The systematic schematic diagram of heat pump；
Figure label explanation：The first compressors of 1-, 2- four-way valves, 3- heat exchangers, 41- first throttle valves, 42- second throttle
Valve, 43- third throttle valves, 5- evaporative condensers, the first shut-off valves of 61-, the second shut-off valves of 62-, 7- air source heat exchangers, 8-
Second compressor, 9- hot water demands side.
Specific implementation mode
Below in conjunction with Figure of description, the present invention will be further described.
The superposition type CO with four-way valve commutation defrosting of the present invention2Heat pump, as shown in Figure 1 comprising：
First compressor 1, heat exchanger 3, first throttle valve 41, second throttle 42, third throttle valve 43, steams four-way valve 2
Feel cold condenser 5, the first shut-off valve 61, the second shut-off valve 62, air source heat exchanger 7, the second compressor 8, and heat exchanger 3 has conventional
Refrigerant passage, hot water channel, evaporative condenser 5 have conventional refrigerant passage, CO2Channel, air source heat exchanger 7 have conventional cold
Matchmaker channel, CO2Channel；
The CO of second compressor 8, evaporative condenser 52Channel, second throttle 42, air source heat exchanger 7 CO2Channel according to
The secondary CO for connecting and composing low-temperature level by the road2Circulation loop；
First compressor 1, four-way 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 by the road successively, and the configuration of the first shut-off valve 61 is being evaporated
Closing or open the conventional refrigerant passage of evaporative condenser 5 on pipeline where the conventional refrigerant passage of condenser 5；It is empty
The both ends of the conventional refrigerant passage of air source heat exchanger 7 respectively by the conventional refrigerant passage of piping connection to evaporative condenser 5 with
Between four-way valve 2, between the conventional refrigerant passage and first throttle valve 41 of heat exchanger 3 and it is connected to the conventional refrigerant of heat exchanger 3
Pipeline between channel and first throttle valve 41 is equipped with third throttle valve 43, and the second shut-off valve 62 configures air source heat exchanger 7
Conventional refrigerant passage where pipeline on closing or open the conventional refrigerant passage of air source heat exchanger 7；
The conventional refrigerant passage of heat exchanger 3, the conventional refrigerant passage of air source heat exchanger 7 are mutual by the commutation of four-way valve 2
It changes as evaporator, condenser.
First throttle valve 41 for adjust heating state of cyclic operation, third throttle valve 43 for adjust Defrost operation operating mode and compared with
High room temperature condition place an order heating state of cyclic operation, in the form of distinguishing system difference operation under required throttle valve type selecting difference.
The hot water channel of heat exchanger 3 connect with a hot water demand side 9, and conventional refrigerant circulation circuit is adjusted by four-way valve 2
It is run with heating condition or reversely 9 draw heat defrosts for air source heat exchanger 7 from hot water demand side.Conventional refrigerant circulation returns
The refrigerant on road is one kind in R417A, R134a, R410A, R407c.
The superposition type CO with four-way valve commutation defrosting based on aforementioned present invention2Heat pump, superposition type CO of the present invention2Heat pump removes
White method is：
When compared with low ambient temperature（Such as when control system detects that environment temperature is less than -5oC）, open the first shut-off valve
61, start the first compressor 1, the second compressor 8, close the second shut-off valve 62, by second compressor 8, evaporative condenser 5
CO2Channel, second throttle 42, air source heat exchanger 7 CO2Channel constitutes the CO of low-temperature level2Circulation loop, by the first compression
Machine 1, four-way valve 2, the conventional refrigerant passage of heat exchanger 3, first throttle valve 41, the conventional refrigerant passage composition of evaporative condenser 5
The conventional refrigerant circulation circuit of high-temperature level, system is with the CO of low-temperature level2The conventional refrigerant circulation circuit of circulation loop and high-temperature level
The heating endless form of overlapping is run；
In higher outdoor temperature（Such as when control system detects that environment temperature is higher than -5oC）, close the first shut-off valve
61, the second compressor 8, open the second shut-off valve 62, by the first compressor 1, four-way valve 2, heat exchanger 3 conventional refrigerant passage,
Third throttle 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, which reaches defrosting, to be required（It is detected by control system）, the first shut-off valve 61 is closed, is closed
Second compressor 8 opens the second shut-off valve 62, and control four-way valve 2 commutates, and is exchanged heat by the first compressor 1, four-way valve 2, air-source
The conventional refrigerant passage of device 7, the conventional refrigerant passage composition defrosting heating circulation loop of third throttle valve 43, heat exchanger 3 so that
The conventional refrigerant passage of heat exchanger 3 is run in the form of evaporator, and the conventional refrigerant passage of air source heat exchanger 7 is with condenser
Form is run, to remove the frost that 7 surface of air source heat exchanger is tied.
Although invention has been described for the above content combination attached drawing, the present invention is not only limited to above-mentioned specific reality
Mode is applied, the above mentioned embodiment is only schematical, and and not restrictive, those skilled in the art is come
Say, can still modify to the exemplary technical solution of above-mentioned implementation, thus it is all under present inventive concept made by it is any
Modification, equivalents etc., belong within protection scope of the present invention.
Claims (4)
1. with the superposition type CO of four-way valve commutation defrosting2Heat pump, it is characterized in that including：First compressor（1）, four-way valve（2）, change
Hot device（3）, first throttle valve（41）, second throttle（42）, third throttle valve（43）, evaporative condenser（5）, the first shut-off valve
（61）, the second shut-off valve（62）, air source heat exchanger（7）, the second compressor（8）, the heat exchanger（3）With conventional refrigerant
Channel, hot water channel, the evaporative condenser（5）With conventional refrigerant passage, CO2Channel, the air source heat exchanger
（7）With conventional refrigerant passage, CO2Channel；
Second compressor（8）, evaporative condenser（5）CO2Channel, second throttle（42）, air source heat exchanger（7）
CO2Channel connects and composes the CO of low-temperature level by the road successively2Circulation loop；
First compressor（1）, four-way valve（2）, heat exchanger（3）Conventional refrigerant passage, first throttle valve（41）, evaporation
Condenser（5）Conventional refrigerant passage connect and compose the conventional refrigerant circulation circuit of high-temperature level by the road successively, described first
Shut-off valve（61）Configuration is in the evaporative condenser（5）Conventional refrigerant passage where pipeline on closing or open institute
State evaporative condenser（5）Conventional refrigerant passage；The air source heat exchanger（7）The both ends of conventional refrigerant passage pass through respectively
Piping connection is to the evaporative condenser（5）Conventional refrigerant passage and four-way valve（2）Between, the heat exchanger（3）Routine
Refrigerant passage and first throttle valve（41）Between and be connected to the heat exchanger（3）Conventional refrigerant passage and first throttle valve
（41）Between pipeline be equipped with third throttle valve（43）, second shut-off valve（62）Configure the air source heat exchanger
（7）Conventional refrigerant passage where pipeline on closing or open the air source heat exchanger（7）Conventional refrigerant it is logical
Road；
The heat exchanger（3）Conventional refrigerant passage, air source heat exchanger（7）Conventional refrigerant passage pass through the four-way valve
（2）Commutation exchange as evaporator, condenser.
2. the superposition type CO according to claim 1 with four-way valve commutation defrosting2Heat pump, it is characterized in that：The heat exchanger
（3）Hot water channel and a hot water demand side（9）Connection, passes through the four-way valve（2）Adjust the conventional refrigerant circulation circuit
It is run with heating condition or reversely from the hot water demand side（9）Draw heat comes for the air source heat exchanger（7）Defrosting.
3. the superposition type CO according to claim 1 with four-way valve commutation defrosting2Heat pump, it is characterized in that：The routine refrigerant
The refrigerant of circulation loop is one kind in R417A, R134a, R410A, R407c.
4. superposition type CO2Defrost method, the superposition type CO2Heat pump includes：
First compressor（1）, four-way valve（2）, heat exchanger（3）, first throttle valve（41）, second throttle（42）, third throttling
Valve（43）, evaporative condenser（5）, the first shut-off valve（61）, the second shut-off valve（62）, air source heat exchanger（7）, the second compressor
（8）, the heat exchanger（3）With conventional refrigerant passage, hot water channel, the evaporative condenser（5）With conventional refrigerant
Channel, CO2Channel, the air source heat exchanger（7）With conventional refrigerant passage, CO2Channel；
Second compressor（8）, evaporative condenser（5）CO2Channel, second throttle（42）, air source heat exchanger（7）
CO2Channel connects and composes the CO of low-temperature level by the road successively2Circulation loop；
First compressor（1）, four-way valve（2）, heat exchanger（3）Conventional refrigerant passage, first throttle valve（41）, evaporation
Condenser（5）Conventional refrigerant passage connect and compose the conventional refrigerant circulation circuit of high-temperature level by the road successively, described first
Shut-off valve（61）Configuration is in the evaporative condenser（5）Conventional refrigerant passage where pipeline on closing or open institute
State evaporative condenser（5）Conventional refrigerant passage；The air source heat exchanger（7）The both ends of conventional refrigerant passage pass through respectively
Piping connection is to the evaporative condenser（5）Conventional refrigerant passage and four-way valve（2）Between, the heat exchanger（3）Routine
Refrigerant passage and first throttle valve（41）Between and be connected to the heat exchanger（3）Conventional refrigerant passage and first throttle valve
（41）Between pipeline be equipped with third throttle valve（43）, second shut-off valve（62）Configure the air source heat exchanger
（7）Conventional refrigerant passage where pipeline on closing or open the air source heat exchanger（7）Conventional refrigerant it is logical
Road；
The heat exchanger（3）Conventional refrigerant passage, air source heat exchanger（7）Conventional refrigerant passage pass through the four-way valve
（2）Commutation exchange as evaporator, condenser；
It is characterized in that：
When compared with low ambient temperature, first shut-off valve is opened（61）, start the first compressor（1）, the second compressor（8）,
Close second shut-off valve（62）, by second compressor（8）, evaporative condenser（5）CO2Channel, second throttle
（42）, air source heat exchanger（7）CO2Channel constitutes the CO of low-temperature level2Circulation loop, by first compressor（1）, four
Port valve（2）, heat exchanger（3）Conventional refrigerant passage, first throttle valve（41）, evaporative condenser（5）Conventional refrigerant passage structure
At the conventional refrigerant circulation circuit of high-temperature level, system is with the CO of low-temperature level2Circulation loop and the conventional refrigerant circulation of high-temperature level return
The heating endless form of road overlapping is run；
In higher outdoor temperature, first shut-off valve is closed（61）, the second compressor（8）, open second shut-off valve
（62）, by first compressor（1）, four-way valve（2）, heat exchanger（3）Conventional refrigerant passage, third throttle valve（43）、
Air source heat exchanger（7）Conventional refrigerant passage constitute high-temperature level conventional refrigerant circulation circuit, system is only with the normal of high-temperature level
Advise refrigerant circulation circuit operation；
When the air source heat exchanger（7）When reaching defrosting and requiring, first shut-off valve is closed（61）, close second pressure
Contracting machine（8）, open second shut-off valve（62）, control the four-way valve（2）Commutation, by first compressor（1）, four-way
Valve（2）, air source heat exchanger（7）Conventional refrigerant passage, third throttle valve（43）, heat exchanger（3）Conventional refrigerant passage structure
Circulation loop is heated at defrosting so that the heat exchanger（3）Conventional refrigerant passage run in the form of evaporator, the air
Source heat exchanger（7）Conventional refrigerant passage run in the form of condenser, to remove the air source heat exchanger（7）Surface institute
The frost of knot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610505209.2A CN106016802B (en) | 2016-07-01 | 2016-07-01 | With the superposition type CO of four-way valve commutation defrosting2Heat pump and superposition type CO2Defrost method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610505209.2A CN106016802B (en) | 2016-07-01 | 2016-07-01 | With the superposition type CO of four-way valve commutation defrosting2Heat pump and superposition type CO2Defrost method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106016802A CN106016802A (en) | 2016-10-12 |
| CN106016802B true CN106016802B (en) | 2018-08-03 |
Family
ID=57105942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610505209.2A Expired - Fee Related CN106016802B (en) | 2016-07-01 | 2016-07-01 | With the superposition type CO of four-way valve commutation defrosting2Heat pump and superposition type CO2Defrost method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106016802B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642781A (en) * | 2016-12-22 | 2017-05-10 | 刘勇 | CO2 cascade heat pump system suitable for extremely cold areas and control method thereof |
| CN106500381A (en) * | 2016-12-22 | 2017-03-15 | 刘勇 | It is applied to the CO of extremely cold area2Overlapping heat pump and its control method |
| CN106766308A (en) * | 2016-12-22 | 2017-05-31 | 刘勇 | Suitable for the CO of extremely cold area2Overlapping heat pump and its control method |
| CN106766312A (en) * | 2016-12-22 | 2017-05-31 | 刘勇 | Suitable for the CO of extremely cold area2The heat pump and its control method of overlapping |
| CN106524275B (en) * | 2016-12-22 | 2024-03-19 | 黑龙江爱科德科技有限公司 | Composite air source heat pump heating system and circulation method |
| CN106524552A (en) * | 2016-12-22 | 2017-03-22 | 刘勇 | CO2 cascaded heat pump system and heat pump equipment unit suitable for extremely cold area |
| CN106500380A (en) * | 2016-12-22 | 2017-03-15 | 刘勇 | It is applied to the CO of extremely cold area2Overlapping heat pump and its control method |
| CN106979638A (en) * | 2017-04-28 | 2017-07-25 | 上海理工大学 | Automobile air-conditioning evaporator defroster |
| CN107289568B (en) * | 2017-08-18 | 2023-02-10 | 广东高而美制冷设备有限公司 | Air-conditioning heat pump system capable of refrigerating strongly and defrosting rapidly and working mode of air-conditioning heat pump system |
| CN108036557B (en) * | 2017-12-28 | 2023-11-14 | 广东芬尼克兹节能设备有限公司 | Parallel cascade heat pump system |
| CN108562080B (en) * | 2018-06-22 | 2024-05-07 | 浙江正理生能科技有限公司 | Intelligent defrosting system of air source heat pump |
| CN111442552A (en) * | 2020-05-11 | 2020-07-24 | 珠海格力电器股份有限公司 | Cascade type refrigerant circulating system, air conditioning equipment and control method of cascade type refrigerant circulating system |
| CN114234465B (en) * | 2021-12-27 | 2023-08-29 | 上海理工大学 | High-low temperature environment test box refrigerating system adopting multichannel evaporator |
| CN115164432B (en) * | 2022-06-27 | 2024-07-09 | 青岛海尔空调电子有限公司 | Heat pump system and control method thereof |
| CN115420039B (en) * | 2022-09-29 | 2024-02-13 | 江苏亚拓新能源科技有限公司 | Extremely-cold cascade heat pump control method |
| CN116294266B (en) * | 2023-02-27 | 2024-04-19 | 清华大学 | Air source heat pump system capable of realizing single-stage operation and cascade operation |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5717584B2 (en) * | 2011-08-10 | 2015-05-13 | 三菱電機株式会社 | Refrigeration cycle equipment |
| EP3070417A4 (en) * | 2013-11-12 | 2017-09-27 | Mitsubishi Electric Corporation | Refrigeration system |
| KR20150076775A (en) * | 2013-12-27 | 2015-07-07 | 동명대학교산학협력단 | Dual refrigerating system |
| CN203824164U (en) * | 2014-04-16 | 2014-09-10 | 中国铁道科学研究院节能环保劳卫研究所 | Overlapped type carbon dioxide air source heat pump |
| CN204313529U (en) * | 2014-10-24 | 2015-05-06 | 林龙朝 | Overlapping large temperature difference double source high temperature heat pump |
| CN105509377A (en) * | 2015-12-22 | 2016-04-20 | 珠海格力电器股份有限公司 | Trans critical co2Circulating system, heat pump water heater and defrosting method |
| CN205747568U (en) * | 2016-07-01 | 2016-11-30 | 杭州佳力斯韦姆新能源科技有限公司 | Superposition type CO with cross valve commutation defrosting2heat pump |
-
2016
- 2016-07-01 CN CN201610505209.2A patent/CN106016802B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106016802A (en) | 2016-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106016802B (en) | With the superposition type CO of four-way valve commutation defrosting2Heat pump and superposition type CO2Defrost method | |
| CN108131858B (en) | Heat pump air conditioning system and control method thereof | |
| JP4675927B2 (en) | Air conditioner | |
| CN103175344B (en) | Cold-region used multi-connected heat pump system and control method thereof | |
| TW548389B (en) | Freezing device | |
| JP2009228979A (en) | Air conditioner | |
| CN107655233A (en) | Air conditioner system and air conditioner with same | |
| JP2001056159A (en) | Air conditioner | |
| CN108931039A (en) | Air conditioner control system and air conditioner | |
| CN207214503U (en) | Air conditioner system and air conditioner with same | |
| CN107120831B (en) | A kind of continuous heating air friction drag | |
| EP3228954A2 (en) | Cooling apparatus | |
| JP6949130B2 (en) | Refrigeration cycle equipment | |
| CN108007016A (en) | Heat pump system and control method for heat pump system | |
| CN205747568U (en) | Superposition type CO with cross valve commutation defrosting2heat pump | |
| CN213480643U (en) | Heat pump system and air conditioning equipment | |
| CN113864929A (en) | Air conditioning system and control method thereof | |
| JP6092731B2 (en) | Air conditioner | |
| CN107726480A (en) | Half decoupling type is classified the dehumidifying heat pump and method of dehumidifying and cooling | |
| CN106595118A (en) | Air-cooled cold and hot water unit | |
| CN216203955U (en) | Air conditioning system | |
| CN110207413A (en) | Refrigerating system with drying function, drying device and operation control method | |
| CN206514566U (en) | Air-cooled cold and hot water unit | |
| CN215930175U (en) | Refrigerating system | |
| WO2022239212A1 (en) | Air conditioner and air conditioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311241 Youyi village, Guali Town, Hangzhou City, Zhejiang Province Patentee after: Hangzhou swem New Energy Technology Development Co.,Ltd. Address before: 311241 Youyi village, Guali Town, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU JIALISI WEIMU NEW ENERGY TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 |