CN106288532A - 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
- CN106288532A CN106288532A CN201610893592.3A CN201610893592A CN106288532A CN 106288532 A CN106288532 A CN 106288532A CN 201610893592 A CN201610893592 A CN 201610893592A CN 106288532 A CN106288532 A CN 106288532A
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- Prior art keywords
- heat exchanger
- heat exchange
- defrosting
- cooler
- refrigeration
- Prior art date
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Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000010257 thawing Methods 0.000 claims abstract description 60
- 239000003507 refrigerant Substances 0.000 claims abstract description 10
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 238000005057 refrigeration Methods 0.000 claims description 80
- 239000002826 coolant Substances 0.000 claims description 20
- 239000006200 vaporizer Substances 0.000 description 15
- 239000007788 liquid Substances 0.000 description 13
- 238000001704 evaporation Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000010259 detection of temperature stimulus Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035939 shock Effects 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, and 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 and is 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 control thereof
Method processed.
Background technology
The process that its air-cooler is defrosted by refrigeration unit is, cross valve commutates so that the high-temperature exhaust air of compressor enters and steams
Sending out device, utilize its sensible heat and latent heat to carry out defrosting, there are the following problems for existing defrosting process: when defrosting starts, by compressing
The high-pressure hot gas that machine flows out enters at a high speed vaporizer, with vaporizer present in cryogenic liquid contact huge pressure can be caused to shake
Ripple, forms impact to pipeline and system and causes damage.
Summary of the invention
In view of this, the present invention provides a kind of stable, heat exchanger assembly that defrosting effect is good, air-cooler, refrigeration machine
Group and control method thereof.
First aspect, it is provided that a kind of heat exchanger assembly.
A kind of heat exchanger assembly, including heat exchanger, described heat exchanger includes that body and heat exchange branch road, described heat exchange branch road are joined
It is set on refrigerant flow, be positioned at the upstream of described body when described heat exchanger enters defrosting state and when described heat exchanger enters
Disconnect when entering refrigerating state.
Preferably, described heat exchanger assembly also includes the first switching device；
Described first switching device is for when described heat exchanger enters defrosting state, propping up described body and described heat exchange
Road is arranged in series and makes described heat exchange branch road on refrigerant flow to be positioned at the upstream of described body；And/or,
Described first switching device is for when described heat exchanger enters refrigerating state, cutting off described heat exchange branch road.
Preferably, described heat exchanger assembly also includes being arranged at the drip tray below described heat exchanger, described heat exchange branch road
Arrange near described drip tray or be at least partially disposed in described drip tray.
Preferably, the length direction extension of drip tray described in curb is propped up in described heat exchange.
Preferably, described heat exchanger assembly also includes the second switch being arranged on the refrigeration entrance pipe of described heat exchanger
Device.
Second aspect, it is provided that a kind of air-cooler.
A kind of air-cooler, including heat exchanger assembly as above.
The third aspect, it is provided that a kind of refrigeration unit.
A kind of refrigeration unit, it includes air-cooler as above.
Fourth aspect, it is provided that the control method of a kind of refrigeration unit.
The control method of a kind of refrigeration unit, when described refrigeration unit enters defrosting state, controls coolant and flows through successively
The heat exchange branch road of described air-cooler and body.
Preferably, when described refrigeration unit receives the order of defrosting, first the refrigeration entrance pipe of air-cooler is cut
Break and continued for first scheduled time, then controlling refrigeration unit and enter defrosting state.
Preferably, after described refrigeration unit enters defrosting state lasting second scheduled time, by the refrigeration entrance of air-cooler
Pipeline is opened.
Preferably, when described refrigeration unit receives the order stopping defrosting, refrigeration unit enters refrigerating state, simultaneously
Open again after the refrigeration entrance pipe of air-cooler was cut off for the 3rd scheduled time.
Its heat exchanger of heat exchanger assembly that the present invention provides has heat exchange branch road, when heat exchanger can when entering defrosting state
Make the high temperature and high pressure gas flowed out by compressor initially enter heat exchange branch road, enter back into body after decrease temperature and pressure, it is to avoid to pipe
Road and system form impact, thus improve operational reliability and defrosting efficiency.
The air-cooler that the present invention provides uses heat exchanger assembly as above, reliable and defrosting efficiency height.
The refrigeration unit that the present invention provides uses above-mentioned air-cooler, reliable and defrosting efficiency height.
The control method of the refrigeration unit that the present invention provides, when refrigeration unit enters defrosting state, controls coolant and flows successively
Through heat exchange branch road and the body of air-cooler, reliable and defrosting efficiency height.
Accompanying drawing explanation
By description to the embodiment of the present invention referring to the drawings, above-mentioned and other purpose of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings:
Fig. 1 illustrates the structural blast figure of the air-cooler that the specific embodiment of the invention provides；
Fig. 2 illustrates the partial enlarged drawing of pipeline portions in Fig. 1；
Fig. 3 illustrates the structural representation of the refrigeration unit that the specific embodiment of the invention provides；
Fig. 4 illustrates the control method flow chart of the refrigeration unit that the specific embodiment of the invention provides.
In figure, 1, air-cooler；11, body；111, refrigeration outlet；112, refrigeration entrance；12, heat exchange branch road；131, first
Switching branches；1311, the first check valve；132, second switch branch road；1321, the second check valve；1322, defrosting electromagnetic valve；14、
Refrigeration outlet header；15, refrigeration inlet manifold；16, capillary tube；17, liquid supply electromagnetic valve；18, blower fan；19, drip tray；2, compression
Machine；3, cross valve；4, gas-liquid separator；5, reservoir；6, condenser；71, electric expansion valve；72, the 3rd check valve；73, supply
Liquid stop valve；74, device for drying and filtering；75, suction line valve；76, suction filter.
Detailed description of the invention
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Under
During the details of the present invention is described by literary composition, detailed 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, known method, mistake
The narration the most in detail of journey, flow process, element.
Additionally, it should be understood by one skilled in the art that accompanying drawing is provided to descriptive purpose provided herein, and
Accompanying drawing is not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise entire disclosure is similar with " including ", " comprising " in claims etc.
Word should be construed to the implication that comprises rather than exclusive or exhaustive implication；It is to say, be containing of " including but not limited to "
Justice.
In describing the invention, it is to be understood that term " first ", " second " etc. are not only used for describing purpose, and not
It is understood that as instruction or hint relative importance.Additionally, in describing the invention, except as otherwise noted, the implication of " multiple "
It is two or more.
The invention provides a kind of heat exchanger assembly, it includes that heat exchanger, heat exchanger include body and heat exchange branch road, when changing
When hot device is entered defrosting state by refrigerating state and when being entered refrigerating state by defrosting state, the coolant commutation in heat exchanger,
Heat exchange branch road is configured to, when described heat exchanger enters defrosting state, be positioned at the upstream of body and work as heat exchanger on refrigerant flow
Disconnect when entering refrigerating state, thus, when heat exchanger assembly can make the High Temperature High Pressure that flowed out by compressor when defrosting
Gas is introduced into heat exchange branch road, enters back into body after decrease temperature and pressure, can be prevented effectively from coolant pair by the buffering of heat exchange branch road
Pipeline and system form impact, thus improve operational reliability and defrosting efficiency.The heat exchanger assembly that the present invention provides can be extensive
It is applied in the refrigeration plants such as air-cooler, air-conditioner outdoor unit, refrigerator.
It is further preferred that heat exchanger assembly also includes the drip tray being arranged at below heat exchanger, heat exchange branch road is near connecing
Water pond arranges or is at least partially disposed in drip tray, thus, prop up when air-cooler has part coolant to flow into heat exchange when defrosting
In road such that it is able to drip tray is heated, it is to avoid drop to the frost layer regelation in drip tray.
It is applied to, as a example by air-cooler, concrete structure is described by heat exchanger assembly below.The structure of air-cooler as it is shown in figure 1,
It includes below vaporizer (heat exchanger in the most aforesaid heat exchanger assembly), the blower fan 18 of vaporizer side and vaporizer
Drip tray 19.Wherein, vaporizer includes that body 11 and heat exchange branch road 12, body 11 are the main heat exchanging part of vaporizer, and heat exchange
Branch road 12 can arrange or be at least partially disposed in drip tray 19 near drip tray 19, it is preferable that as shown in fig. 1, heat exchange
Branch road 12 is entirely located in drip tray 19.Concrete, body 11 includes that the first set of heat exchange tubes, the first set of heat exchange tubes undertake vaporizer
Main heat exchange work, the such as first set of heat exchange tubes includes 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 road 12 is for heating drip tray 19, and its version in drip tray 19 does not limits, preferably
Ground, heat exchange branch road 12 extends along the length direction of drip tray 19, thus improves the heats to drip tray 19.Concrete at one
Embodiment in, it is a plurality of along drip tray 19 that heat exchange branch road 12 includes that the second set of heat exchange tubes, the second set of heat exchange tubes farther include
The second heat exchanger tube that length direction extends, a plurality of second heat exchanger tube is arranged successively along the width of drip tray 19 such that it is able to
Whole drip tray 19 is heated.The quantity of the second heat exchanger tube does not limits, such as, can be two as shown in Figure 1, it is possible to
Think three and more than.
Further, air-cooler also includes the first switching device, and this first switching device is for entering defrosting when air-cooler
During state, it is arranged in series and make heat exchange branch road 12 on refrigerant flow to be positioned at the upper of body 11 body 11 and heat exchange branch road 12
Trip, thus, when air-cooler has part coolant to flow in heat exchange branch road 12 when defrosting such that it is able to drip tray 19 is carried out
Heating, it is to avoid drop to the frost layer regelation in drip tray 19, owing to first the high temperature and high pressure gas flowed out by compressor enters
Enter heat exchange branch road 12, enter back into body 11 after decrease temperature and pressure, thus avoid pipeline and system are formed impact, improve reliable
Property and defrosting efficiency.
It is further preferred that the first switching device is additionally operable to, when air-cooler enters refrigerating state, be cut by heat exchange branch road 12
Disconnected, i.e. to make coolant flow only through body 11 and carry out heat exchange, it is ensured that the refrigerating efficiency of air-cooler.
The concrete structure of the first switching device does not limits, it is possible to realize above-mentioned functions, such as can by pipeline and
The switch of multiple electromagnetic valves coordinates realization, in a preferred embodiment, as in figure 2 it is shown, the first switching device includes two
Switching branches in parallel, the respectively first switching branches 131 and second switch branch road 132, two switching branches in parallel are in body
Refrigeration outlet (i.e. the body refrigerant exit when freezing) 111 of 11 and refrigeration outlet header (during air-cooler refrigeration
Coolant general export's pipeline) between 14, refrigeration outlet header 14 is for connecting the cross valve 3 of refrigeration unit, the first switching branches 131
One end connects the refrigeration outlet 111 of body 11, the other end even refrigeration outlet header 14, and the first switching branches 131 is provided with the
One check valve 1311, the first check valve 1311 only allows coolant to be flowed to cross valve 3 direction by body 11, second switch branch road
132 one end connect the refrigeration outlet 111 of body 11, the other end even refrigeration outlet header 14, and second switch branch road 132 is provided with
Second check valve 1321 and defrosting electromagnetic valve 1322, heat exchange branch road 12 be positioned at the second check valve 1321 and defrosting electromagnetic valve 1322 it
Between, wherein the second check valve 1321 exports 111 settings near the refrigeration of body 11, and only allows coolant by heat exchange branch road 12 to this
Flow in body 11 direction.So, when air-cooler runs refrigeration, defrosting electromagnetic valve 1322 cuts out, thus is cut off by heat exchange branch road 12,
Coolant in body 11 flows to cross valve 3 through the first check valve 1311, when air-cooler runs defrosting, and defrosting electromagnetic valve 1322 dozens
Open, thus the coolant flowed out by compressor be after cross valve 3, first enter heat exchange branch road 12 heat exchange through defrosting electromagnetic valve 1322,
Then heat exchange in the second check valve 1321 enters body 11.
In further preferably embodiment, refrigeration entrance pipe (i.e. refrigerant inlet during air-cooler refrigeration of vaporizer
Pipeline) on be provided with second switch device, for the refrigeration entrance pipe of vaporizer is opened and closed, second switch device
Specifically arrange position not limit, it is possible to stop coolant to flow into vaporizer, in a specific embodiment, body when refrigeration
It is (cold that the refrigeration entrance (i.e. the body refrigerant inlet when freezing) 111 of 11 connects refrigeration inlet manifold through capillary tube 16
Coolant main entrance pipeline during blower fan refrigeration) 15, refrigeration inlet manifold 15 is connected with second switch device, second switch device example
As being liquid supply electromagnetic valve 17 as shown in Figure 3, the description of its concrete work process and effect is as detailed below.
Above-mentioned air-cooler is arranged at the structure of refrigeration unit as it is shown on figure 3, refrigeration unit includes compressor 2, cross valve
3, the conventional equipment such as gas-liquid separator 4, above-mentioned air-cooler 1, capillary tube 16, reservoir 5 and condenser 6, specifically described herein
Vaporizer and condenser 6 refer respectively to when refrigeration unit normal course of operation for evaporation and the device of condensation.Condenser 6
And it is provided with electric expansion valve 71 between reservoir 5, electric expansion valve 71 is also parallel with the 3rd check valve 72.Refrigeration entrance is total
Pipe 15 is successively through cutoff 73, liquid supply electromagnetic valve (the most aforesaid switching device) 17, device for drying and filtering 74 with reservoir 5 even
Connect.Refrigeration outlet header 14 is connected with cross valve 3 through suction line valve 75, suction filter 76 successively.Cutoff 73 He
Suction line valve 75 is in open mode under normal circumstances.
Further, the control method of above-mentioned refrigeration unit is, when refrigeration unit enters defrosting state, cross valve 3 changes
To so that coolant commutation flowing, electric expansion valve 71 is operated by normal defrosting logic, and blower fan 18 cuts out, and controls coolant
Flow through heat exchange branch road 12 and the body 11 of air-cooler 1 successively, thus, initially enter change through the High Temperature High Pressure coolant of compressor compression
Hot branch road 12 carries out heat exchange, heats drip tray, enters back into body 11 after decrease temperature and pressure, it is to avoid pipeline is formed 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 first scheduled time, subsequently into defrosting state, i.e. controls cross valve 3 and commutates so that refrigeration
Air-cooler 1 is defrosted by unit, and now refrigeration entrance pipe is still within dissengaged positions, is cut off by refrigeration entrance pipe
First scheduled time, it is possible to the coolant in vaporizer is emptied, on the one hand it can be avoided that liquid hammer occurs, on the other hand can carry
The efficiency of high follow-up defrosting, in the process, the blower fan 18 of air-cooler 1 keeps operating.The concrete numerical value of first scheduled time is not
Limit, can be configured as the case may be, and its preferred scope is 10 to 40 seconds, more preferably 20 seconds.
Further, after refrigeration unit enters defrosting state lasting second scheduled time, shape in the vaporizer of air-cooler 1
Become high-pressure system, the most again the refrigeration entrance pipe of air-cooler 1 is opened, thus ensure the defrosting that air-cooler 1 can be stable.The
The concrete numerical value of two scheduled times does not limits, and can be configured as the case may be, and its preferred scope is 10 to 40 seconds, the most excellent
Elect 20 seconds as.
When defrosting, flush distillation temperature can be detected at interval of a period of time such as every five seconds for example, when evaporating temperature reaches
Require, after (the most continuous 3 temperature reach preset value), defrosting process to be stopped.Defrosting is stopped when refrigeration unit receives
During order, refrigeration unit enters refrigerating state, i.e. cross valve 3 and commutates, and electric expansion valve 71 is closed, and blower fan 18 is opened, and will simultaneously
Heat exchange branch road 12 cuts off (such as defrosting electromagnetic valve 1322 cuts out), same, and the refrigeration entrance pipe of air-cooler 1 is first in cutting
Disconnected state, thus the coolant in vaporizer is emptied, it is to avoid liquid hammer and raising heat exchange efficiency.The 3rd is continued entering refrigerating state
After the scheduled time, can be opened by refrigeration entrance pipe, system carries out stable refrigeration.The concrete numerical value of the 3rd scheduled time does not limits,
Can be configured as the case may be, its preferred scope is 10 to 40 seconds, more 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, cross valve 3 switches, and defrosting electromagnetic valve 1322 is opened, and blower fan 18 cuts out, and electric expansion valve 71 works, and enters
Enter defrosting state；
After 20 seconds, liquid supply electromagnetic valve 17 is opened；
Detect and judge whether evaporating temperature reaches preset value, if so, carrying out following operation, otherwise proceed evaporation
The detection of temperature and judgement；
Cross valve 3 switches, and defrosting electromagnetic valve 1322, liquid supply electromagnetic valve 17 and electric expansion valve 71 are turned off, blower fan 18
Open, enter refrigerating state；
After 30 seconds, liquid supply electromagnetic valve 17 is opened.
To system when heat exchanger assembly, air-cooler, refrigeration unit and the control method that the present invention provides can eliminate defrosting
Shock problem, improve operational reliability and defrosting efficiency, when defrosting, drip tray heated simultaneously, prevent frost layer de-
Fall behind in drain pan, again condense that cause cannot draining.
Those skilled in the art is it is easily understood that on the premise of not conflicting, above-mentioned each preferred version can be free
Ground combination, superposition.
Should be appreciated that above-mentioned embodiment is only illustrative, and not restrictive, basic without departing from the present invention
In the case of principle, those skilled in the art can for above-mentioned details make various significantly or the amendment of equivalent or replace
Change, be all included in scope of the presently claimed invention.
Claims (11)
1. a heat exchanger assembly, it is characterised in that include that heat exchanger, described heat exchanger include body (11) and heat exchange branch road
(12), described heat exchange branch road (12) is configured to when described heat exchanger enters defrosting state be positioned at described body on refrigerant flow
(11) upstream and the disconnection when described heat exchanger enters refrigerating state.
Heat exchanger assembly the most according to claim 1, it is characterised in that described heat exchanger assembly also includes the first switch dress
Put；
Described first switching device is for when described heat exchanger enters defrosting state, propping up described body (11) and described heat exchange
Road (12) is arranged in series and makes described heat exchange branch road (12) on refrigerant flow to be positioned at the upstream of described body (11)；And/or,
Described first switching device is for when described heat exchanger enters refrigerating state, cutting off described heat exchange branch road (12).
Heat exchanger assembly the most according to claim 1, it is characterised in that described heat exchanger assembly also includes being arranged at described
Drip tray (19) below heat exchanger, described heat exchange branch road (12) arranges or is at least partially disposed at institute near described drip tray (19)
State in drip tray (19).
Heat exchanger assembly the most according to claim 3, it is characterised in that described heat exchange branch road (12) is along described drip tray
(19) length direction extends.
5. according to the heat exchanger assembly described in any one of Claims 1-4, it is characterised in that described heat exchanger assembly also includes
It is arranged at the second switch device on the refrigeration entrance pipe of described heat exchanger.
6. an air-cooler, it is characterised in that include the heat exchanger assembly as described in any one of claim 1 to 5.
7. a refrigeration unit, it is characterised in that include air-cooler as claimed in claim 6 (1).
8. the control method of a refrigeration unit as claimed in claim 7, it is characterised in that when described refrigeration unit enters defrosting
During state, control coolant and flow through heat exchange branch road (12) and the body (11) of described air-cooler (1) successively.
Control method the most according to claim 8, it is characterised in that when described refrigeration unit receives the order of defrosting
Time, first the refrigeration entrance pipe of air-cooler (1) was cut off and continued first scheduled time, then control refrigeration unit entrance and remove
Frost state.
Control method the most according to claim 9, it is characterised in that described refrigeration unit enters defrosting state and continues the
After two scheduled times, the refrigeration entrance pipe of air-cooler (1) is opened.
11. control methods according to claim 8, it is characterised in that stop defrosting when described refrigeration unit receives
During order, refrigeration unit enters refrigerating state, the refrigeration entrance pipe of air-cooler (1) is cut off after the 3rd scheduled time more simultaneously
Open.
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 |
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| Publication Number | Publication Date |
|---|---|
| CN106288532A true CN106288532A (en) | 2017-01-04 |
| CN106288532B CN106288532B (en) | 2018-06-29 |
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Cited By (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 |
| CN113366273A (en) * | 2019-02-05 | 2021-09-07 | 三菱电机株式会社 | Refrigerating device |
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| 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 |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH028668A (en) * | 1988-06-27 | 1990-01-12 | Nishi Nippon Seiki Seisakusho:Kk | Defrosting device for freezer |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN113366273A (en) * | 2019-02-05 | 2021-09-07 | 三菱电机株式会社 | Refrigerating device |
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