CN106288532B - Heat exchanger assembly, air cooler, refrigerating unit and control method thereof - Google Patents
Heat exchanger assembly, air cooler, refrigerating unit and control method thereof Download PDFInfo
- Publication number
- CN106288532B CN106288532B CN201610893592.3A CN201610893592A CN106288532B CN 106288532 B CN106288532 B CN 106288532B CN 201610893592 A CN201610893592 A CN 201610893592A CN 106288532 B CN106288532 B CN 106288532B
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- heat exchange
- branch
- refrigeration
- ontology
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000010257 thawing Methods 0.000 claims abstract description 55
- 239000003507 refrigerant Substances 0.000 claims abstract description 33
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 238000005057 refrigeration Methods 0.000 claims description 77
- 239000007788 liquid Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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)
- Defrosting Systems (AREA)
Abstract
The invention discloses a heat exchanger assembly, an air cooler, a refrigerating unit and a control method of the refrigerating unit. The heat exchanger assembly comprises a heat exchanger, wherein the heat exchanger comprises a body and a heat exchange branch, the heat exchange branch is configured to be positioned at the upstream of the body on a refrigerant flow path when the heat exchanger enters a defrosting state, so that a refrigerant is cooled and depressurized in the heat exchange branch and then enters the body, and the heat exchange branch is also configured to be disconnected when the heat exchanger enters a refrigerating state. The heat exchanger of the heat exchanger component provided by the invention is provided with the heat exchange branch, when the heat exchanger enters a defrosting state, high-temperature and high-pressure gas flowing out of the compressor can firstly enter the heat exchange branch, and then enters the body after being cooled and depressurized, so that impact on pipelines and a system is avoided, and the operation reliability and the defrosting efficiency are improved.
Description
Technical field
The present invention relates to field of heat exchange, relate more specifically to a kind of heat exchanger assembly, cold wind unit, refrigeration unit and its control
Method processed.
Background technology
The process that refrigeration unit defrosts to its air-cooler is four-way valve commutation so that the high-temperature exhaust air of compressor enters steaming
Device is sent out, carries out defrosting using its sensible heat and latent heat, there are the following problems for existing defrosting process：When defrosting starts, by compressing
The high-pressure hot gas of machine outflow enters at a high speed evaporator, and being contacted with cryogenic liquid present in evaporator can cause huge pressure to shake
Wave forms impact to pipeline and system and damages.
Invention content
In view of this, the present invention provides a kind of heat exchanger assembly stable, defrosting effect is good, air-cooler, refrigeration machine
Group and its control method.
In a first aspect, provide a kind of heat exchanger assembly.
A kind of heat exchanger assembly, including heat exchanger, the heat exchanger includes ontology and heat exchange branch, and the heat exchange branch is matched
It is set to the upstream for being located at the ontology when the heat exchanger enters defrosting state on refrigerant flow so that refrigerant is changed described
The ontology is entered back into hot branch after decrease temperature and pressure, the heat exchange branch is additionally configured to enter refrigerating state when the heat exchanger
When disconnect, the heat exchanger assembly further includes first switch branch (131) and second switch branch (132), the first switch
Branch (131) and the second switch branch (132) are parallel to the refrigeration outlet (111) of the ontology (11) and refrigeration exports always
Between managing (14), the heat exchange branch (12) is arranged on the second switch branch (132).
Preferably, the heat exchanger assembly further includes first switch device；
The first switch device is used for when the heat exchanger enters defrosting state, by the ontology and the heat exchange branch
Road is arranged in series and so that the heat exchange branch is located at the upstream of the ontology on refrigerant flow；And/or
The first switch device is used for when the heat exchanger enters refrigerating state, by the heat exchange branch cut-out.
Preferably, the heat exchanger assembly further includes the drip tray being set to below the heat exchanger, the heat exchange branch
It sets or is at least partially disposed in the drip tray close to the drip tray.
Preferably, the length direction extension of drip tray described in the heat exchange branch curb.
Preferably, the heat exchanger assembly further includes the second switch being set on the refrigeration entrance pipe of the heat exchanger
Device.
Second aspect provides a kind of air-cooler.
A kind of air-cooler, including heat exchanger assembly as described above.
The third aspect provides a kind of refrigeration unit.
A kind of refrigeration unit, including air-cooler as described above.
Fourth aspect provides a kind of control method of refrigeration unit.
A kind of control method of refrigeration unit, when the refrigeration unit enters defrosting state, control refrigerant followed by
The heat exchange branch and ontology of the air-cooler.
Preferably, when the refrigeration unit receives the order of defrosting, the refrigeration entrance pipe of air-cooler is cut first
Break and continued for the first predetermined time, then refrigeration unit is controlled to enter defrosting state.
Preferably, the refrigeration unit enters after defrosting state continued for the second predetermined time, by the refrigeration entrance of air-cooler
Pipeline is opened.
Preferably, when the refrigeration unit receives the order for stopping defrosting, refrigeration unit enters refrigerating state, simultaneously
It will again be opened after the refrigeration entrance pipe cut-out third predetermined time of air-cooler.
Its heat exchanger of heat exchanger assembly provided by the invention has heat exchange branch, when heat exchanger can when into defrosting state
So that initially entering heat exchange branch by the high temperature and high pressure gas that compressor flows out, ontology is entered back into after decrease temperature and pressure, is avoided to pipe
Road and system form impact, so as to improve operational reliability and defrosting efficiency.
Air-cooler provided by the invention uses heat exchanger assembly as described above, and reliable and defrosting is efficient.
Refrigeration unit provided by the invention uses above-mentioned air-cooler, and reliable and defrosting is efficient.
When refrigeration unit enters defrosting state, control refrigerant flows the control method of refrigeration unit provided by the invention successively
Heat exchange branch and ontology through air-cooler, reliable and defrosting are efficient.
Description of the drawings
By referring to the drawings to the description of the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the Structure explosion diagram for the air-cooler that the specific embodiment of the invention provides；
Fig. 2 shows the partial enlarged views of pipeline portions in Fig. 1；
Fig. 3 shows the structure diagram for the refrigeration unit that the specific embodiment of the invention provides；
Fig. 4 shows the control method flow chart for the refrigeration unit that the specific embodiment of the invention provides.
In figure, 1, air-cooler；11st, ontology；111st, refrigeration outlet；112nd, freeze entrance；12nd, exchange heat branch；131st, first
Switching branches；1311st, the first check valve；132nd, second switch branch；1321st, the second check valve；1322nd, defrosting solenoid valve；14、
Refrigeration outlet header；15th, refrigeration inlet manifold；16th, capillary；17th, liquid supply electromagnetic valve；18th, wind turbine；19th, drip tray；2nd, it compresses
Machine；3rd, four-way valve；4th, gas-liquid separator；5th, liquid storage device；6th, condenser；71st, electric expansion valve；72nd, third check valve；73rd, it supplies
Liquid shut-off valve；74th, device for drying and filtering；75th, suction line valve；76th, suction filter.
Specific embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Under
Text to the present invention datail description in, it is detailed to describe some specific detail sections.Do not have for a person skilled in the art
The description of these detail sections can also understand the present invention completely.In order to avoid obscuring the essence of the present invention, well known method, mistake
There is no narrations in detail for journey, flow, element.
In addition, it should be understood by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and
What attached drawing was not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise throughout the specification and claims " comprising ", "comprising" etc. are similar
Word should be construed to the meaning included rather than exclusive or exhaustive meaning；That is, it is containing for " including but not limited to "
Justice.
In the description of the present invention, it is to be understood that term " first ", " second " etc. are only used for description purpose, without
It is understood that indicate or implying relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
It is two or more.
The present invention provides a kind of heat exchanger assembly, including heat exchanger, heat exchanger includes ontology and heat exchange branch, when changing
When entering refrigerating state when hot device enters defrosting state by refrigerating state and by defrosting state, the refrigerant commutation in heat exchanger,
Heat exchange branch is configured to when the heat exchanger enters defrosting state, and the upstream of ontology is located on refrigerant flow and works as heat exchanger
It is disconnected during into refrigerating state, so as to may be such that the high temperature and pressure flowed out by compressor when heat exchanger assembly is being defrosted
Gas is introduced into heat exchange branch, and ontology is entered back into after decrease temperature and pressure, and refrigerant pair can be effectively avoided by the buffering for the branch that exchanges heat
Pipeline and system form impact, so as to improve operational reliability and defrosting efficiency.Heat exchanger assembly provided by the invention can be extensive
Applied in the refrigeration equipments such as air-cooler, air-conditioner outdoor unit, refrigerator.
It is further preferred that heat exchanger assembly further includes the drip tray being set to below heat exchanger, heat exchange branch leans on proximity
Water pond sets or is at least partially disposed in drip tray, so as to there is part refrigerant to flow into heat exchange branch when air-cooler is being defrosted
In road, so as to be heated to drip tray, avoid dropping to the frost layer regelation in drip tray.
Below by taking heat exchanger assembly is applied to air-cooler as an example, illustrate concrete structure.The structure of air-cooler as shown in Figure 1,
It include evaporator (heat exchanger in i.e. aforementioned heat exchanger assembly), evaporator side wind turbine 18 and evaporator below
Drip tray 19.Wherein, evaporator includes ontology 11 and heat exchange branch 12, and ontology 11 is the main heat exchanging part of evaporator, and exchanges heat
Branch 12 can be set or be at least partially disposed in drip tray 19 close to drip tray 19, it is preferable that as shown in fig. 1, heat exchange
Branch 12 is entirely located in drip tray 19.Specifically, ontology 11 includes the first set of heat exchange tubes, the first set of heat exchange tubes undertakes evaporator
Main heat exchange work, such as the first set of heat exchange tubes include a plurality of the first heat exchanger tube being set up in parallel, and the first heat exchanger tube is arranged in
In fin.Heat exchange branch 12 is for heating drip tray 19, and the structure type in drip tray 19 is specifically unlimited, preferably
Ground, heat exchange branch 12 extends along the length direction of drip tray 19, so as to improve the heating effect to drip tray 19.It is specific at one
Embodiment in, heat exchange branch 12 includes the second set of heat exchange tubes, and the second set of heat exchange tubes further comprises a plurality of along drip tray 19
Second heat exchanger tube of length direction extension, a plurality of second heat exchanger tube are arranged successively along the width direction of drip tray 19, so as to
Entire drip tray 19 is heated.The quantity of second heat exchanger tube is unlimited, such as can be two as shown in Figure 1, also may be used
Think three and more than.
Further, air-cooler further includes first switch device, which is used to enter defrosting when air-cooler
During state, ontology 11 and heat exchange branch 12 are arranged in series and so that heat exchange branch 12 is located at the upper of ontology 11 on refrigerant flow
Trip, so as to there is part refrigerant to flow into heat exchange branch 12 when air-cooler is being defrosted, so as to be carried out to drip tray 19
Heating, avoids dropping to the frost layer regelation in drip tray 19, due to the high temperature and high pressure gas that is flowed out by compressor first into
Enter to exchange heat branch 12, and ontology 11 is entered back into after decrease temperature and pressure, so as to avoid forming impact to pipeline and system, improves reliable
Property and defrosting efficiency.
It is further preferred that first switch device is additionally operable to when air-cooler enters refrigerating state, heat exchange branch 12 is cut
It is disconnected, that is, so that refrigerant flows only through ontology 11 and exchanges heat, to ensure the refrigerating efficiency of air-cooler.
The concrete structure of first switch device is unlimited, can realize above-mentioned function, for example, can by pipeline and
The switch cooperation of multiple solenoid valves is realized, in a preferred embodiment, as shown in Fig. 2, first switch device includes two
Switching branches in parallel, respectively first switch branch 131 and second switch branch 132, two switching branches in parallel are in ontology
11 refrigeration outlet (i.e. refrigerant exit of the ontology when being freezed) 111 with refrigeration outlet header (i.e. cold wind mechanism cold when
Refrigerant general export pipeline) between 14, refrigeration outlet header 14 is used to connect the four-way valve 3 of refrigeration unit, first switch branch 131
The refrigeration outlet 111 of one end connection ontology 11, the other end even refrigeration outlet header 14 are provided with the on first switch branch 131
One check valve 1311, the first check valve 1311 only allow refrigerant to be flowed from ontology 11 to 3 direction of four-way valve, second switch branch
The refrigeration outlet 111 of 132 one end connection ontology 11, the other end connect refrigeration outlet header 14, are provided on second switch branch 132
Second check valve 1321 and defrosting solenoid valve 1322, heat exchange branch 12 be located at the second check valve 1321 and defrosting solenoid valve 1322 it
Between, wherein refrigeration outlet 111 setting of second check valve 1321 close to ontology 11, and only allow refrigerant from heat exchange branch 12 to originally
It flows in 11 direction of body.In this way, when air-cooler runs and freezes, defrosting solenoid valve 1322 is closed, and so as to exchange heat, branch 12 is cut off,
Refrigerant in ontology 11 flows to four-way valve 3 through the first check valve 1311, and when air-cooler, which is run, to defrost, defrosting solenoid valve 1322 is beaten
It opens, so as to after four-way valve 3, be entered heat exchange branch 12 by the refrigerant of compressor outflow through defrosting solenoid valve 1322 first and exchanged heat,
Then enter in ontology 11 through the second check valve 1321 and exchange heat.
In further preferably embodiment, the refrigeration entrance pipe of evaporator (i.e. cold wind mechanism cold when refrigerant inlet
Pipeline) on be provided with second switch device, for by the refrigeration entrance pipe of evaporator open and close, second switch device
Specific installation position is unlimited, refrigerant can be prevented to flow into evaporator, in a specific embodiment, ontology in refrigeration
It is (i.e. cold that 11 refrigeration entrance (i.e. refrigerant inlet of the ontology when being freezed) 111 connects inlet manifold of freezing through capillary 16
Refrigerant main entrance pipeline when wind turbine freezes) 15, refrigeration inlet manifold 15 is connect with second switch device, second switch device example
Such as can be liquid supply electromagnetic valve 17 as shown in Figure 3, the description of the specific course of work and effect is as detailed below.
Above-mentioned air-cooler is set to the structure of refrigeration unit as shown in figure 3, refrigeration unit includes compressor 2, four-way valve
3rd, the conventional equipments such as gas-liquid separator 4, above-mentioned air-cooler 1, capillary 16, liquid storage device 5 and condenser 6, it is described herein
Evaporator and condenser 6 refer respectively to the device for evaporating and condensing when refrigeration unit normal course of operation.Condenser 6
Electric expansion valve 71 is provided between liquid storage device 5, third check valve 72 is also parallel on electric expansion valve 71.The entrance that freezes is total
Pipe 15 connects successively through cutoff 73, liquid supply electromagnetic valve (i.e. aforementioned switching device) 17, device for drying and filtering 74 with liquid storage device 5
It connects.Refrigeration outlet header 14 connect successively through suction line valve 75, suction filter 76 with four-way valve 3.73 He of cutoff
Suction line valve 75 is in opening state under normal circumstances.
Further, the control method of above-mentioned refrigeration unit is that, when refrigeration unit enters defrosting state, four-way valve 3 changes
To so that refrigerant commutation flowing, electric expansion valve 71 work by normal defrosting logic, and wind turbine 18 is closed, and controls refrigerant
Followed by the heat exchange branch 12 of air-cooler 1 and ontology 11, so as to which the high temperature and pressure refrigerant compressed through compressor, which initially enters, to be changed
Hot branch 12 exchanges heat, and drip tray is heated, and ontology 11 is entered back into after decrease temperature and pressure, avoids forming pipeline and impact.
In further preferably embodiment, when refrigeration unit receives the order of defrosting, first by the system of air-cooler 1
Cold entrance pipe cuts off and continued for the first predetermined time, subsequently into defrosting state, that is, four-way valve 3 is controlled to commutate so that refrigeration
Unit defrosts to air-cooler 1, and refrigeration entrance pipe is still within dissengaged positions at this time, by refrigeration entrance pipe cut-out
First predetermined time enabled to the refrigerant in evaporator to empty, and on the one hand can avoid the occurrence of liquid hammer, and on the other hand can carry
The efficiency of high follow-up defrosting, in the process, the wind turbine 18 of air-cooler 1 keeps operating.The concrete numerical value of first predetermined time is not
Limit, can be configured as the case may be, and preferred scope is 10 to 40 seconds, further preferably 20 seconds.
Further, after refrigeration unit, which enters defrosting state, continued for the second predetermined time, shape in the evaporator of air-cooler 1
Into high-pressure system, then the refrigeration entrance pipe of air-cooler 1 is opened again, so as to ensure defrosting that air-cooler 1 can be stablized.The
The concrete numerical value of two predetermined times is unlimited, can be configured as the case may be, and preferred scope is 10 to 40 seconds, further excellent
It is selected as 20 seconds.
It, can be at interval of for example every five seconds for example detects flush distillation temperature for a period of time, when evaporating temperature reaches when being defrosted
It is required that after (such as continuous 3 temperature reach preset value), defrosting process can be stopped.Stop defrosting when refrigeration unit receives
During order, refrigeration unit enters refrigerating state, i.e. four-way valve 3 commutates, and electric expansion valve 71 is closed, and wind turbine 18 is opened, and simultaneously will
Heat exchange branch 12 cuts off (such as defrosting solenoid valve 1322 is closed), likewise, the refrigeration entrance pipe of air-cooler 1 is first in cutting
Disconnected state so as to which the refrigerant in evaporator be emptied, avoids liquid hammer and improves heat exchange efficiency.Continuing third into refrigerating state
After predetermined time, refrigeration entrance pipe can be opened, system carries out stablizing refrigeration.The concrete numerical value of third predetermined time is unlimited,
It can be configured as the case may be, preferred scope is 10 to 40 seconds, further preferably 30 seconds.
As shown in figure 4, the specific embodiment of a refrigeration unit control method is given below.
When refrigeration unit receives the order of defrosting, liquid supply electromagnetic valve 73 is closed；
After 20 seconds, four-way valve 3 switches, and defrosting solenoid valve 1322 is opened, and wind turbine 18 is closed, and electric expansion valve 71 works, into
Enter defrosting state；
After 20 seconds, liquid supply electromagnetic valve 17 is opened；
It detects and judges whether evaporating temperature reaches preset value, if so, carrying out following operation, otherwise continue to evaporate
The detection and judgement of temperature；
Four-way valve 3 switches, and defrosting solenoid valve 1322, liquid supply electromagnetic valve 17 and electric expansion valve 71 are turned off, wind turbine 18
It opens, into refrigerating state；
After 30 seconds, liquid supply electromagnetic valve 17 is opened.
To system when heat exchanger assembly provided by the invention, air-cooler, refrigeration unit and control method can eliminate defrosting
Shock problem, improve operational reliability and defrosting efficiency, while drip tray is heated in defrosting, prevent frost layer de-
Fall behind to condense in drain pan again and lead to not draining.
For those skilled in the art it is easily understood that under the premise of not conflicting, above-mentioned each preferred embodiment can be free
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is only exemplary, and not restrictive, without departing from the basic of the present invention
In the case of principle, those skilled in the art can be directed to the various apparent or equivalent modification made of above-mentioned details or replace
It changes, is all included in scope of the presently claimed invention.
Claims (11)
1. a kind of heat exchanger assembly, which is characterized in that including heat exchanger, the heat exchanger includes ontology (11) and heat exchange branch
(12), the heat exchange branch (12) is configured to be located at the ontology on refrigerant flow when the heat exchanger enters defrosting state
(11) upstream so that refrigerant enters back into the ontology (11), the heat exchange after described heat exchange branch (12) interior decrease temperature and pressure
Branch (12) is additionally configured to disconnect when the heat exchanger enters refrigerating state, and the heat exchanger assembly further includes first switch branch
Road (131) and second switch branch (132), the first switch branch (131) and the second switch branch (132) are parallel to
Between the refrigeration outlet (111) of the ontology (11) and refrigeration outlet header (14), the heat exchange branch (12) is arranged on described
On second switch branch (132).
2. heat exchanger assembly according to claim 1, which is characterized in that the heat exchanger assembly further includes first switch dress
It puts；
The first switch device is used for when the heat exchanger enters defrosting state, by the ontology (11) and the heat exchange branch
Road (12) is arranged in series and so that the heat exchange branch (12) is positioned at the upstream of the ontology (11) on refrigerant flow；And/or
The first switch device is used for when the heat exchanger enters refrigerating state, and the heat exchange branch (12) is cut off.
3. heat exchanger assembly according to claim 1, which is characterized in that the heat exchanger assembly further include be set to it is described
Drip tray (19) below heat exchanger, the heat exchange branch (12) set or are at least partially disposed at institute close to the drip tray (19)
It states in drip tray (19).
4. heat exchanger assembly according to claim 3, which is characterized in that the heat exchange branch (12) is along the drip tray
(19) length direction extension.
5. heat exchanger assembly according to any one of claims 1 to 4, which is characterized in that the heat exchanger assembly further includes
The second switch device being set on the refrigeration entrance pipe of the heat exchanger.
6. a kind of air-cooler, which is characterized in that including heat exchanger assembly such as described in any one of claim 1 to 5.
7. a kind of refrigeration unit, which is characterized in that including air-cooler as claimed in claim 6 (1).
8. a kind of control method of refrigeration unit as claimed in claim 7, which is characterized in that when the refrigeration unit enters defrosting
During state, control refrigerant is followed by the heat exchange branch (12) of the air-cooler (1) and ontology (11).
9. control method according to claim 8, which is characterized in that when the refrigeration unit receives the order of defrosting
When, the refrigeration entrance pipe of air-cooler (1) is cut off first and continued for the first predetermined time, refrigeration unit is then controlled to enter and is removed
White state.
10. control method according to claim 9, which is characterized in that the refrigeration unit enters defrosting state and continues
After two predetermined times, the refrigeration entrance pipe of air-cooler (1) is opened.
11. control method according to claim 8, which is characterized in that stop defrosting when the refrigeration unit receives
During order, refrigeration unit enters refrigerating state, at the same by after the refrigeration entrance pipe cut-out third predetermined time of air-cooler (1) again
It opens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610893592.3A CN106288532B (en) | 2016-10-13 | 2016-10-13 | Heat exchanger assembly, air cooler, refrigerating unit and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610893592.3A CN106288532B (en) | 2016-10-13 | 2016-10-13 | Heat exchanger assembly, air cooler, refrigerating unit and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106288532A CN106288532A (en) | 2017-01-04 |
| CN106288532B true CN106288532B (en) | 2018-06-29 |
Family
ID=57718186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610893592.3A Active CN106288532B (en) | 2016-10-13 | 2016-10-13 | Heat exchanger assembly, air cooler, refrigerating unit and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106288532B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401788A (en) * | 2017-07-11 | 2017-11-28 | 依科瑞德（北京）能源科技有限公司 | A kind of directly evaporation and direct condensing earth-source hot-pump system |
| EP3922927A4 (en) * | 2019-02-05 | 2022-01-19 | Mitsubishi Electric Corporation | Freezing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101248321A (en) * | 2005-06-23 | 2008-08-20 | 卡里尔公司 | Method for defrosting evaporator of refrigeration circuit |
| CN102003842A (en) * | 2010-11-04 | 2011-04-06 | 三花丹佛斯（杭州）微通道换热器有限公司 | Evaporator and refrigeration system with same |
| CN206094660U (en) * | 2016-10-13 | 2017-04-12 | 珠海格力电器股份有限公司 | Heat exchanger assembly, air cooler and refrigerating unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0760038B2 (en) * | 1988-06-27 | 1995-06-28 | 株式会社西日本精機製作所 | Defroster for refrigerator |
-
2016
- 2016-10-13 CN CN201610893592.3A patent/CN106288532B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101248321A (en) * | 2005-06-23 | 2008-08-20 | 卡里尔公司 | Method for defrosting evaporator of refrigeration circuit |
| CN102003842A (en) * | 2010-11-04 | 2011-04-06 | 三花丹佛斯（杭州）微通道换热器有限公司 | Evaporator and refrigeration system with same |
| CN206094660U (en) * | 2016-10-13 | 2017-04-12 | 珠海格力电器股份有限公司 | Heat exchanger assembly, air cooler and refrigerating unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106288532A (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211739591U (en) | Air conditioning system and air conditioning equipment that incessant heats | |
| CN203771791U (en) | Refrigeration cycle device | |
| CN107110546B (en) | Air conditioning apparatus | |
| US9377225B2 (en) | Outdoor heat exchanger and air conditioner comprising the same | |
| KR100821728B1 (en) | Air conditioning system | |
| CN104764087B (en) | A kind of two-stage heating air conditioner system for possessing defrosting function and its control method | |
| EP3093586B1 (en) | Air conditioning device | |
| WO2019141029A1 (en) | Heat pump system and control method therefor | |
| CN106288562A (en) | The defrosting of a kind of air source heat pump system controls devices and methods therefor | |
| CN109442788B (en) | Defrosting method of air conditioner and air conditioner | |
| CN104736950B (en) | Air-conditioning device | |
| KR102399240B1 (en) | Air conditioner and control method thereof | |
| CN106288532B (en) | Heat exchanger assembly, air cooler, refrigerating unit and control method thereof | |
| JP2011080733A (en) | Air conditioner | |
| CN204154044U (en) | The air-conditioning system of hot-gas bypass | |
| CN102331121A (en) | Air conditioner and control method thereof | |
| CN103900311B (en) | Refrigerating system and freezing and refrigerating device using same | |
| CN106091457B (en) | Refrigeration system and its control method and control device, refrigerator | |
| CN108954999A (en) | Electric expansion valve hot gas defrosting system Condensing units | |
| CN206094660U (en) | Heat exchanger assembly, air cooler and refrigerating unit | |
| CN107110584A (en) | Freezer for container | |
| KR20160060524A (en) | A heat hump system having a defrost device | |
| CN211424782U (en) | Hot fluorine defrosting device and air conditioning unit | |
| CN208886933U (en) | Online pipe for air-conditioning system | |
| CN207515277U (en) | Air source heat pump 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 |