CN109114851A - Regenerator and cooling cycle system - Google Patents
Regenerator and cooling cycle system Download PDFInfo
- Publication number
- CN109114851A CN109114851A CN201811337140.2A CN201811337140A CN109114851A CN 109114851 A CN109114851 A CN 109114851A CN 201811337140 A CN201811337140 A CN 201811337140A CN 109114851 A CN109114851 A CN 109114851A
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- China
- Prior art keywords
- heat exchanger
- exchanger tube
- regenerator
- cooling body
- heat
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 81
- 239000002826 coolant Substances 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 35
- 238000007906 compression Methods 0.000 claims description 35
- 230000008676 import Effects 0.000 claims description 21
- 230000007246 mechanism Effects 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process 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
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/06—Superheaters
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/09—Improving heat transfers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to a kind of regenerator and cooling cycle systems, comprising: ontology offers heat exchanging chamber in the ontology;First heat exchanger tube, first heat exchanger tube are at least partly placed in the heat exchanging chamber;Second heat exchanger tube, second heat exchanger tube are at least partly placed in the heat exchanging chamber;Wherein, first heat exchanger tube is bonded to each other with second heat exchanger tube, and the two each leads into the coolant media for being able to carry out heat exchange.It is bonded between first heat exchanger tube and the second heat exchanger tube, convenient for the conduction of heat, so improves the heat exchange efficiency of the coolant media and the coolant media being located in the second heat exchanger tube in the first heat exchanger tube.
Description
Technical field
The present invention relates to refrigeration technology fields, more particularly to a kind of regenerator and cooling cycle system.
Background technique
Due to the continuous deterioration of depletion of the ozone layer and greenhouse effects, natural refrigerant CO2It is increasingly taken seriously, using certainly
Right working medium CO2It is the good scheme for solving environmental problem as refrigerant.But due to CO2Critical-temperature there was only 31.2 DEG C,
System is usually run under the conditions of Trans-critical cycle, and operating pressure is higher, and the efficiency of single-stage Trans-critical cycle cooling cycle system is very low,
Therefore CO2Twin-stage or multistage Trans-critical cycle cooling cycle system become an important directions of research.
Due to high pressure conditions CO2The cooling for needing the heat exchanged huge, common when gas is condensed along with higher temperature
Device effect is undesirable, and is limited and cannot achieve by unit space using the cooler of large area, while large area is cold
But device means increased costs, therefore CO2Twin-stage or multistage Trans-critical cycle cooling cycle system usually use regenerator to CO2Into one
Step is cooling to meet the requirements.But the problem that the generally existing heat exchange efficiency of traditional regenerator is low.
Summary of the invention
Based on this, it is necessary to for the low problem of heat exchange efficiency existing for traditional regenerator, provide a kind of heat exchange efficiency compared with
High regenerator and cooling cycle system.
A kind of regenerator, comprising:
Ontology offers heat exchanging chamber in the ontology;
First heat exchanger tube, first heat exchanger tube are at least partly placed in the heat exchanging chamber;
Second heat exchanger tube, second heat exchanger tube are at least partly placed in the heat exchanging chamber;
Wherein, first heat exchanger tube is bonded to each other with second heat exchanger tube, and the two each leads into and is able to carry out heat
The coolant media of exchange.
First heat exchanger tube and second heat exchanger tube are helix tube in one of the embodiments, and described first
The hand of spiral of heat exchanger tube is identical as the hand of spiral of second heat exchanger tube and is bonded to each other setting.
The regenerator further includes fixing pipe in one of the embodiments, and the fixing pipe is at least partly placed in institute
It states in heat exchanging chamber, first heat exchanger tube and second heat exchanger tube are set in the fixing pipe.
The both ends of the fixing pipe are pierced by outside the heat exchanging chamber in one of the embodiments, first heat exchanger tube
It is pierced by outside the both ends of the fixing pipe with the both ends of second heat exchanger tube.
The regenerator further includes current-carrying agent in one of the embodiments, and the current-carrying agent filling is in the heat exchanging chamber
It is interior.
Offered on the ontology in one of the embodiments, the third that is connected between the heat exchanging chamber and the external world into
Mouth and gas vent.
It is lower than the position of the gas vent along the position of third import described in gravity direction in one of the embodiments,
It sets.
A kind of cooling cycle system, including compression cooling body, evaporator, first throttle mechanism and such as any of the above-described institute
The regenerator stated, one end of the compression cooling body and the first inlet communication of first heat exchanger tube, the first throttle
The both ends of mechanism are connected to one end of the first outlet of first heat exchanger tube and the evaporator respectively, the evaporator it is another
Second inlet communication of one end and second heat exchanger tube, the other end of the compressor cooling body and second heat exchanger tube
Second outlet connection.
The cooling cycle system further includes second throttle body in one of the embodiments, the second throttling machine
Third import of the both ends of structure respectively with one end and the ontology of the compression cooling body and first inlet communication connects
It is logical.
The compression cooling body includes low-pressure stage compression cooling body and hiigh pressure stage compression in one of the embodiments,
The both ends of cooling body, the low-pressure stage compression cooling body connect with the second outlet and the hiigh pressure stage cooling body respectively
Logical, one end and first import that the hiigh pressure stage compression cooling body is not connected to low-pressure stage compression cooling body connect
Logical, the gas vent of the ontology connects with one end that the hiigh pressure stage cooling body is connected to low-pressure stage compression cooling body
It is logical.
Above-mentioned regenerator and cooling cycle system are bonded between the first heat exchanger tube and the second heat exchanger tube, convenient for the biography of heat
It leads, the heat exchange for so improving coolant media and the coolant media being located in the second heat exchanger tube in the first heat exchanger tube is imitated
Rate.
Detailed description of the invention
Fig. 1 is the schematic diagram for the cooling cycle system that one embodiment of the invention provides;
Fig. 2 is the structure chart of regenerator provided in Fig. 1;
Fig. 3 is the cross-sectional view in the face A-A of regenerator provided in Fig. 2.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Refering to fig. 1, one embodiment of the invention provides a kind of cooling cycle system 100, including compression cooling body, evaporator
20, first throttle mechanism 30 and regenerator 40.One end of first throttle mechanism 30 is connected to regenerator 40, first throttle mechanism 30
The other end be connected to one end of evaporator 20, the other end of evaporator 20 is connected to regenerator 40, compresses the two of cooling body
End is connected to regenerator 40.When work, the gas of the high temperature and pressure formed through overcompression cooling body enters in regenerator 40
Heat exchange is carried out with the low temperature low pressure gas flowed out from evaporator 20, the temperature of high temperature and high pressure gas enters first segment after reducing
It flows mechanism 30 to throttle, and enters evaporator 20 from first throttle mechanism 30, circuit sequentially.It, can be with due to the presence of regenerator 40
Further cool down to the high temperature and high pressure gas formed through overcompression cooling body, to improve the refrigerating capacity of cooling cycle system 100.
In one embodiment, above-mentioned cooling cycle system 100 is the two-stage refrigeration circulatory system 100, is also as compressed cold
But mechanism is divided into two-stage, and respectively low-pressure stage compression cooling body and hiigh pressure stage compresses cooling body, and low-pressure stage compresses cooler
Structure is connected between regenerator 40 and hiigh pressure stage compression cooling body, and it is cold that hiigh pressure stage compression cooling body is connected to low-pressure stage compression
But between mechanism and regenerator 40.
Specifically, low-pressure stage compression cooling body includes interconnected low-pressure stage compressor 11 and low-pressure stage gas cooling
Device 12, it includes interconnected high pressure stage compressor 13 and hiigh pressure stage gas cooler 14 that hiigh pressure stage, which compresses cooling body,.At this time
The low-temp low-pressure CO flowed out from regenerator 402Gas first passes around low-pressure stage compressor 11 and compresses the gas for forming medium temperature and medium pressure,
Then after low-pressure stage gas cooler 12 enter high pressure stage compressor 13, high pressure stage compressor 13 carry out second-compressed will in
Warm medium pressure gas boil down to high temperature and high pressure gas, and enter after hiigh pressure stage gas cooler 14 in regenerator 40 and from evaporation
The low temperature low pressure gas flowed out in device 20 carries out heat exchange.
It is understood that in another embodiment, above-mentioned cooling cycle system 100 or multi stage refrigeration cycle
System 100 is also that compression cooling body is divided into multistage (at least three-level).Such as when compression cooling body is divided into three-level, compression
Cooling body includes low-pressure stage compression cooling body, medium pressure grade compression cooling body and hiigh pressure stage compression cooling body, low-pressure stage
It compresses cooling body and is connected between regenerator 40 and medium pressure grade compression cooling body, medium pressure grade compression cooling body is connected to
Low-pressure stage is compressed between cooling body and hiigh pressure stage compression cooling body, and hiigh pressure stage compression cooling body is connected to medium pressure grade compression
Between cooling body and regenerator 40, above-mentioned two-stage refrigeration cyclic system is please referred to as the specific work process of compression cooling body
System 100, is no longer discussed in detail herein.
Refering to Fig. 2 and Fig. 3, in one embodiment, regenerator 40 includes ontology 41, the first heat exchanger tube 42 and the second heat exchange
Pipe 43 offers heat exchanging chamber 411 in ontology 41, and the first heat exchanger tube 42 and the second heat exchanger tube 43 are at least partly placed in heat exchanging chamber
In 411, the first heat exchanger tube 42 has the first import 421 and first outlet 422 being in communication with the outside, the second heat exchanger tube 43 have with
Second import 431 of external world's connection and second outlet 432.
What the first import 421 of the first heat exchanger tube 42 was not connected to high pressure stage compressor 13 with hiigh pressure stage gas cooler 14
The first outlet 422 of one end connection, the first heat exchanger tube 42 is connected to one end that first throttle mechanism 30 is not connected to evaporator 20,
Second import 431 of the second heat exchanger tube 43 is connected to one end that evaporator 20 is not connected to first throttle mechanism 30, the second heat exchange
The second outlet 432 of pipe 43 is connected to one end that low-pressure stage compressor 11 is not connected to low-pressure stage gas cooler 12.
In this way, entering the first heat exchange from the high temperature and high pressure gas that hiigh pressure stage gas cooler 14 flows out from the first import 421
In pipe 42, from evaporator 20 flow out low temperature low pressure gas from the second import 431 enter the second heat exchanger tube 43 in, between each other into
After row heat exchange, the high temperature and high pressure gas after heat exchange flows to after first throttle mechanism 30 is throttled from first outlet 422 to flow
To evaporator 20, the low temperature low pressure gas after heat exchange flows to low-pressure stage compressor 11 from second outlet 432 and is compressed.
Specifically, it is bonded between the first heat exchanger tube 42 and the second heat exchanger tube 43, heat conduction is very fast, so improves and is located at
The heat exchange efficiency of high temperature and high pressure gas and the low temperature low pressure gas being located in the second heat exchanger tube 43 in first heat exchanger tube 42.
In one embodiment, regenerator 40 further includes fixing pipe 44, and fixing pipe 44 is at least partly placed in heat exchanging chamber 411
Interior, the first heat exchanger tube 42 and the second heat exchanger tube 43 are set in fixing pipe 44.Since the space of fixing pipe 44 is smaller, by first
Heat exchanger tube 42 and the second heat exchanger tube 43 are set in fixing pipe 44, in a smaller space, reduce the loss of heat, further
It ensure that the heat exchange efficiency of high temperature and high pressure gas and low temperature low pressure gas.
In one embodiment, the first heat exchanger tube 42 and the second heat exchanger tube 43 are helix tube, correspondingly, fixing pipe 44
For helix tube, the mutual interlaced fit settings of spiral of the spiral of the first heat exchanger tube 42 and the second heat exchanger tube 43 is further mentioned
The heat exchange of high high temperature and high pressure gas and the low temperature low pressure gas being located in the second heat exchanger tube 43 in the first heat exchanger tube 42
Efficiency.
The both ends of fixing pipe 44 are pierced by outside ontology 41 in one of the embodiments, at this time the first heat exchanger tube 42 and
The both ends of two heat exchanger tubes 43 are pierced by outside the both ends of fixing pipe 44, in order to the first heat exchanger tube 42 and the second heat exchanger tube 43 and outside
The connection of component.
For the ease of being supported positioning to regenerator 40, setting regenerator 40 further includes pedestal 45, and pedestal 45 is installed on
The bottom of ontology 41.
In one embodiment, regenerator 40 further includes current-carrying agent, and current-carrying agent is filled in heat exchanging chamber 411, can effectively be mentioned
The heat exchange efficiency of high high temperature and high pressure gas and low temperature low pressure gas.
Referring back to Fig. 1 and refering to Fig. 3, in wherein another embodiment, above-mentioned cooling cycle system 100 further includes
Two throttle mechanisms 50 offer the third import 412 for being connected to heat exchanging chamber 411, one end of second throttle body 50 on ontology 41
The one end not being connected to high pressure stage compressor 13 with hiigh pressure stage gas cooler 14 is connected to, the other end of second throttle body 50 with
Above-mentioned third import 412 is connected to.In this way, being divided into two-way from the high temperature and high pressure gas that hiigh pressure stage gas cooler 14 flows out, all the way
Enter from the first import 421 and carry out heat exchange in first heat exchanger tube 42 with low temperature low pressure gas, another way is by the second throttling machine
Structure 50 forms gas-liquid mixture and enters the interior high temperature and high pressure gas in the first heat exchanger tube 42 of heat exchanging chamber 411 into one after throttling
Step cooling, improves the refrigerating capacity of cooling cycle system 100.
Gas vent 413 is also provided on ontology 41, gas vent 413 is connected to high pressure stage compressor 13, above-mentioned gas-liquid
Gas is formed after mixture heat exchange from 413 row of gas vent into high pressure stage compressor 13, to increase cooling cycle system 100
Internal circulating load increases efficiency.
Specifically, the position along the above-mentioned third import 412 of gravity direction is low compared with the position of gas vent 413, in order to gas
The lighter gas formed after liquid mixture heat exchange is discharged from gas vent 413.
In one embodiment, be equipped with connecting tube 46 in above-mentioned third import 412, in order to second throttle body
50 connection is equipped with connecting tube 46 in above-mentioned gas outlet 413, in order to be connected to high pressure stage compressor 13.
Specifically, connecting tube 46 and ontology 41 are integrally formed.It is to be appreciated that in another embodiment, connecting tube 46
It can also be not limited thereto with ontology 41 with split settings.
One embodiment of the invention also provides regenerator 40 included by a kind of above-mentioned cooling cycle system 100.
Regenerator 40 and cooling cycle system 100 provided in an embodiment of the present invention, have the advantages that
1, the first heat exchanger tube 42 and the second heat exchanger tube 43 are helix tube and its spiral is interlaced is bonded setting, are improved
The heat exchange of high temperature and high pressure gas and the low temperature low pressure gas being located in the second heat exchanger tube 43 in the first heat exchanger tube 42 is imitated
Rate;
2, the gas-liquid mixture after once throttling forms secondary cooling to above-mentioned high temperature and high pressure gas, further increases
Heat exchange efficiency;
3, enter in high pressure stage compressor 13 from the gas that gas vent 413 is discharged, increase cooling cycle system 100
Internal circulating load increases efficiency.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of regenerator (40) characterized by comprising
Ontology (41), the ontology (41) is interior to offer heat exchanging chamber (411);
First heat exchanger tube (42), first heat exchanger tube (42) are at least partly placed in the heat exchanging chamber (411);
Second heat exchanger tube (43), second heat exchanger tube (43) are at least partly placed in the heat exchanging chamber (411);
Wherein, first heat exchanger tube (42) is bonded to each other with second heat exchanger tube (43), and each lead into can be into for the two
The coolant media of row heat exchange.
2. regenerator (40) according to claim 1, which is characterized in that first heat exchanger tube (42) is changed with described second
Heat pipe (43) is helix tube, the hand of spiral of the hand of spiral of first heat exchanger tube (42) and second heat exchanger tube (43)
It is identical and be bonded to each other setting.
3. regenerator (40) according to claim 1, which is characterized in that the regenerator (40) further includes fixing pipe
(44), the fixing pipe (44) is at least partly placed in the heat exchanging chamber (411), first heat exchanger tube (42) and described the
Two heat exchanger tubes (43) are set in the fixing pipe (44).
4. regenerator (40) according to claim 3, which is characterized in that the both ends of the fixing pipe (44) are pierced by described
Outside, the both ends of first heat exchanger tube (42) and second heat exchanger tube (43) are pierced by the fixing pipe to heat exchanging chamber (411)
(44) outside both ends.
5. regenerator (40) according to claim 1, which is characterized in that the regenerator (40) further includes current-carrying agent, institute
Current-carrying agent filling is stated in the heat exchanging chamber (411).
6. regenerator (40) according to claim 1, which is characterized in that offered on the ontology (41) described in being connected to
Third import (412) and gas vent (413) between heat exchanging chamber (411) and the external world.
7. regenerator (40) according to claim 6, which is characterized in that along third import (412) described in gravity direction
Position is lower than the position of the gas vent (413).
8. a kind of cooling cycle system (100), which is characterized in that including compressing cooling body, evaporator (20), first throttle machine
Structure (30) and such as described in any item regenerators of claim 1-7 (40), one end and described first of the compression cooling body
The first import (421) of heat exchanger tube (42) is connected to, the both ends of the first throttle mechanism (30) respectively with first heat exchanger tube
(42) connection of one end of first outlet (422) and the evaporator (20), the other end of the evaporator (20) and described the
The second import (431) of two heat exchanger tubes (43) is connected to, the other end of the compressor cooling body and second heat exchanger tube
(43) second outlet (432) connection.
9. cooling cycle system (100) according to claim 8, which is characterized in that the cooling cycle system (100) is also
Including second throttle body, the both ends of the second throttle body respectively with the compression cooling body and first import
(421) third import (412) connection of one end and the ontology (43) for being connected to.
10. cooling cycle system (100) according to claim 8, which is characterized in that the compression cooling body includes low
It arbitrarily downgrades and compresses cooling body and hiigh pressure stage compression cooling body, the both ends of low-pressure stage compression cooling body are respectively with described the
Two outlets (432) and hiigh pressure stage cooling body connection, the hiigh pressure stage compression cooling body are not compressed with the low-pressure stage
One end of cooling body connection is connected to first import (421), the gas vent (413) and the height of the ontology (43)
One end connection that cooling body of arbitrarily downgrading is connected to low-pressure stage compression cooling body.
Priority Applications (1)
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CN201811337140.2A CN109114851B (en) | 2018-11-12 | 2018-11-12 | Regenerator and refrigeration cycle system |
Applications Claiming Priority (1)
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CN201811337140.2A CN109114851B (en) | 2018-11-12 | 2018-11-12 | Regenerator and refrigeration cycle system |
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Publication Number | Publication Date |
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CN109114851A true CN109114851A (en) | 2019-01-01 |
CN109114851B CN109114851B (en) | 2024-06-18 |
Family
ID=64853879
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CN201811337140.2A Active CN109114851B (en) | 2018-11-12 | 2018-11-12 | Regenerator and refrigeration cycle system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022068306A1 (en) * | 2020-12-31 | 2022-04-07 | 青岛海尔空调电子有限公司 | Heat regenerator and refrigeration system having same |
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CN202928176U (en) * | 2012-11-30 | 2013-05-08 | 苏州必信空调有限公司 | Refrigerant heat recovery circulating system |
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2018
- 2018-11-12 CN CN201811337140.2A patent/CN109114851B/en active Active
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US6189335B1 (en) * | 1998-02-06 | 2001-02-20 | Sanyo Electric Co., Ltd. | Multi-stage compressing refrigeration device and refrigerator using the device |
JP2002156161A (en) * | 2000-11-16 | 2002-05-31 | Mitsubishi Heavy Ind Ltd | Air conditioner |
CN1862151A (en) * | 2005-05-12 | 2006-11-15 | 乐金电子(天津)电器有限公司 | Air conditioner for regenerative cooling circulation system |
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WO2022068306A1 (en) * | 2020-12-31 | 2022-04-07 | 青岛海尔空调电子有限公司 | Heat regenerator and refrigeration system having same |
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