CN108375252A - Liquid storage device assembly and its control method, air-conditioning system - Google Patents
Liquid storage device assembly and its control method, air-conditioning system Download PDFInfo
- Publication number
- CN108375252A CN108375252A CN201810001043.XA CN201810001043A CN108375252A CN 108375252 A CN108375252 A CN 108375252A CN 201810001043 A CN201810001043 A CN 201810001043A CN 108375252 A CN108375252 A CN 108375252A
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- Prior art keywords
- storage device
- liquid storage
- connecting tube
- device assembly
- compressor
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Classifications
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- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The present invention provides a kind of liquid storage device assembly and its control method, air-conditioning systems, the liquid storage device assembly includes liquid storage device and connecting tube, the liquid storage device is connected by the connecting tube with the air entry of compressor, and insulation construction is provided in the liquid storage device and/or the connecting tube；And/or it is provided with heating structure in the liquid storage device and/or the connecting tube.Liquid storage device assembly in the application has insulating layer and heating structure, the refrigerant in liquid storage device can be effectively avoided to become liquid from gaseous state, so that the refrigerant entered in compressor is gaseous coolant, avoid the problem that absorbing gas belt liquid occurs in compressor, reliability during guarantee compressor use and safety, improve the service life of compressor.
Description
Technical field
The present invention relates to air-conditioning system fields, and in particular to a kind of liquid storage device assembly and its control method, air-conditioning system.
Background technology
Compressor is one of critical piece of air-conditioning system, for boosting to gaseous coolant.Common compressor is matched
There is liquid storage device, to be detached to entering liquid refrigerants in the liquid storage device and gaseous coolant.Refrigerant is carried out through liquid storage device
Gas-liquid separation, gaseous coolant are discharged from the exhaust outlet of compressor again after entering compressor cavity compression, realize the liter of air-conditioning system
Press through journey.
However, in air-conditioning system actual moving process, the phenomenon that often will appear absorbing gas belt liquid, meeting inside compressor cavity
Liquid hammer is generated because of refrigerant hydraulic compression, influences the service life of compressor.
Why compressor will appear the phenomenon that absorbing gas belt liquid, be primarily due to enter the gaseous state of the connecting tube of liquid storage device
With the liquid refrigerants in liquid storage device heat exchange occurs for refrigerant, and the saturation gaseous coolant in connecting tube is made to become in connecting tube
Liquid refrigerants, and then be inhaled into inside compressor cavity.
Invention content
In view of this, one of the objects of the present invention is to provide a kind of compressor air suction solution dehumidification while migration of can effectively solve the problem that
Liquid storage device assembly and its control method, and the air-conditioning system with liquid storage device assembly.
In order to achieve the above objectives, in a first aspect, the present invention uses following technical scheme：
A kind of liquid storage device assembly, including liquid storage device and connecting tube, the liquid storage device pass through the connecting tube and compressor
Air entry is connected, and insulation construction is provided in the liquid storage device and/or the connecting tube；And/or
It is provided with heating structure in the liquid storage device and/or the connecting tube.
Preferably, the insulation construction includes the insulating layer being arranged outside the liquid storage device and/or the connecting tube.
Preferably, the insulating layer includes the heat insulation coating on the surface coated on the liquid storage device and/or the connecting tube；
And/or
The insulating layer includes the heat-preservation cotton layer being wrapped in the liquid storage device and/or the connecting tube；And/or
The insulating layer includes multi-layer heat preserving unit, has gap between the adjacent heat-insulation unit.
Preferably, it is provided with the heating structure in the gap.
Preferably, the liquid storage device assembly further includes temperature-sensing element, the temperature-sensing element for detect the liquid storage device and/
Or the temperature of the refrigerant in the connecting tube.
Preferably, the heating structure is arranged on the outer wall and/or inner wall of the liquid storage device；And/or
The heating structure is arranged on the outer wall and/or inner wall of the liquid storage device.
Preferably, the connecting tube includes the first pipeline section being located at outside the liquid storage device and extend into the liquid storage device
And extend to second pipeline section on the top of the liquid storage device.
Preferably, gas-liquid separation plate, one end connection first pipe of second pipeline section are provided in the liquid storage device
Section, the other end are located at the top of the liquid storage device, and the gas-liquid separation plate is located at the import of the liquid storage device and described second and manages
Between the other end of section.
Preferably, it is provided with oil return hole on the tube wall of second pipeline section, the oil return hole goes out close to the liquid storage device
Mouth setting.
Preferably, first pipeline section includes vertical section and traversing section, one end connection second pipe of the vertical section
Section, the other end of the vertical section connect one end of the traversing section, and the other end of the traversing section connects the compressor
Air entry is provided with the heating structure on the inner wall and/or outer wall of the vertical section.
In order to achieve the above object, second aspect, the present invention uses following technical scheme：
A kind of air-conditioning system, including compressor further include above-mentioned liquid storage device assembly, the connecting tube of the liquid storage device assembly
It is connected with the air entry of the compressor.
In order to achieve the above object, the third aspect, the present invention uses following technical scheme：
A kind of control method of liquid storage device assembly as described above, when the temperature of temperature-sensing element detection is pre- less than first
If when temperature, controlling the heating structure and being heated；
When the temperature of the temperature-sensing element is higher than the second preset temperature, controls the heating structure and stop heating.
Liquid storage device assembly in the application has insulating layer and heating structure, can effectively avoid refrigerant in liquid storage device by
Gaseous state becomes liquid so that the refrigerant entered in compressor is gaseous coolant, and compressor is avoided asking for absorbing gas belt liquid occur
Topic, the reliability during guarantee compressor use and safety, improve the service life of compressor.
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 attachment structure schematic diagram for the liquid storage device assembly and compressor that the specific embodiment of the invention provides；
Fig. 2 shows the connection structure sectional views of liquid storage device assembly and compressor that the specific embodiment of the invention provides；
Fig. 3 shows the structural schematic diagram for the oil return hole that the specific embodiment of the invention provides；
Fig. 4 shows one of the preferred embodiment of heating structure that the specific embodiment of the invention provides；
Fig. 5 shows the two of the preferred embodiment for the heating structure that the specific embodiment of the invention provides；
Fig. 6 shows the three of the preferred embodiment for the heating structure that the specific embodiment of the invention provides；
Fig. 7 shows the four of the preferred embodiment for the heating structure that the specific embodiment of the invention provides；
Fig. 8 shows the five of the preferred embodiment for the heating structure that the specific embodiment of the invention provides
Fig. 9 shows the six of the preferred embodiment for the heating structure that the specific embodiment of the invention provides.
In figure：
1, compressor；11, air entry；
2, liquid storage device；21, gas-liquid separation plate；22, import；23, it exports；
3, connecting tube；31, the first pipeline section；311, vertical section；312, traversing section；32, the second pipeline section；321, oil return hole；
4, insulation construction；41, gap；
5, heating structure.
Specific implementation mode
Below based on embodiment, present invention is described, it should be understood by one skilled in the art that provided herein
Attached drawing is provided to the purpose of explanation, and attached drawing is not necessarily drawn to scale.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, being containing for " including but not limited to "
Justice.
As shown in Figure 1, this application provides a kind of liquid storage device assembly and its control method, the liquid storage device assembly includes storage
Liquid device 2 and connecting tube 3, the liquid storage device 2 are connected by the connecting tube 3 with the air entry 11 of compressor 1, and refrigerant passes through institute
It states liquid storage device 2 and connecting tube 3 is entered by the air entry 11 in the compressor 1.
As shown in Fig. 2, the connecting tube 3 includes the first pipeline section 31 being located at outside the liquid storage device 2 and extend into described
Liquid storage device 2 is interior and extends to second pipeline section 32 on the top of the liquid storage device 2.Further, first pipeline section 31 includes perpendicular
To section 311 and traversing section 312, one end of the vertical section 311 connects second pipeline section 32, the vertical section 311 it is another
End connects one end of the traversing section 312, and the other end of the traversing section 312 connects the air entry 11 of the compressor 1.It is preferred that
Ground is provided with gas-liquid separation plate 21 in the liquid storage device 2, and the gas-liquid separation plate 21 is located at the import 22 of the liquid storage device 2,
The gas-liquid separation plate 21 is used to carry out gas-liquid to entering the refrigerant in the liquid storage device 2 from the import 22 of the liquid storage device 2
Separation.After refrigerant is entered by import 22 in the liquid storage device 2, gaseous coolant stays in the top of the liquid storage device 2, Jin Ertong
Cross the bottom that second pipeline section, 32 and first pipeline section 31 enters the compressor 1.Liquid refrigerants is along the gas-liquid separation
Plate 21 is wandered to the lower part of the liquid storage device 2.One end of second pipeline section 32 connects first pipeline section 31, specifically, even
One end of the vertical section 311 of first pipeline section 31 is connect, the other end of second pipeline section 32 is located at the upper of the liquid storage device 2
The other end in portion, second pipeline section 32 extends to the lower section of the gas-liquid separation plate 21, i.e., the described import 22 and described second
The gas-liquid separation plate 21 is provided between the other end of pipeline section 32.Preferably, it is provided on the tube wall of second pipeline section 32
Oil return hole 321, as shown in figure 3, the oil return hole 321 is arranged close to the outlet of the liquid storage device 2 23, so that lubricating oil can flow back
Into the cavity of the compressor 1.
As shown in Fig. 4 to Fig. 9, refrigerant is entered with gas-liquid two-phase state in the compressor 1 in order to prevent, causes compressor
1 absorbing gas belt liquid is run, and insulation construction 4, insulation construction are provided on the liquid storage device 2 and/or the connecting tube 3 in the application
4 pairs of liquid storage devices 2 and 3 pipes of the connection are kept the temperature, and are prevented in liquid refrigerants and the connecting tube 3 in liquid storage device 2
Gaseous coolant exchanges heat, and gaseous coolant is made to become liquid refrigerants.In a preferred embodiment, the liquid storage device 2 and/or
It is provided with insulation construction 4 in the connecting tube 3, heating structure 4 is additionally provided in the liquid storage device 2 and/or the connecting tube 3,
The heating structure is used to, when refrigerant is less than the first preset temperature, add the liquid storage device 2 and/or the connecting tube 3
Heat, and then the refrigerant is heated.It is further preferred that the liquid storage device assembly further includes that temperature-sensing element (does not show in figure
Go out), the temperature-sensing element is used to detect the temperature of the liquid storage device 2 and/or the refrigerant in the connecting tube 3.The application provides
The control method of the liquid storage device assembly include：When the temperature-sensing element detects the liquid storage device 2 and/or the connecting tube
When the temperature of refrigerant in 3 is less than the first preset temperature, the heating structure 5 is to the liquid storage device 2 and/or the connecting tube 3
It is heated；When the temperature-sensing element detects the temperature of the refrigerant in the liquid storage device 2 and/or the connecting tube 3 higher than the
When two preset temperatures, the liquid storage device 2 and/or the connecting tube 3 are heated in the stopping of the heating structure 5, to save energy
Source.In actual application, due to the use of refrigerant type it is different, the pressure of refrigerant is different, therefore, to the heating
When structure is controlled, first preset temperature and the second preset temperature can be adjusted according to actual conditions.Certainly, may be used
With understanding, heating structure can also be controlled according to the variable quantity for the refrigerant temperature that temperature-sensing element detects, one
In a preferred embodiment, temperature-sensing element at interval of 1 minute feedback refrigerant temperature, when temperature-sensing element feedback it is adjacent
When the difference of refrigerant temperature is less than or equal to 0 DEG C twice, the refrigerant is heated in the heating structure unlatching.When temperature-sensitive member
When the difference of the adjacent refrigerant temperature twice of part feedback is greater than or equal to 1 DEG C, the heating structure is closed.
The insulation construction 4 includes the insulating layer being arranged outside the liquid storage device 2 and/or the connecting tube 3.At one
In preferred embodiment, the insulating layer includes that the heat preservation on the surface coated on the liquid storage device 2 and/or the connecting tube 3 applies
Layer.In another preferred embodiment, the insulating layer includes being wrapped in the liquid storage device 2 and/or the connecting tube 3
Heat-preservation cotton layer.In another alternate embodiment, the insulating layer includes multi-layer heat preserving unit, the adjacent heat-insulation unit
Between have gap 41, the insulating layer with multiple heat-insulation units preferably the insulating layer with two layers of heat-insulation unit, Ke Yishe
It sets on the surface of the liquid storage device 2, can also be arranged on the surface of connecting tube 3, it can also be in the liquid storage device 2 and connecting tube 3
Surface be arranged simultaneously.Since between heat-insulation unit, with gap 41, the thermal resistance on 3 surface of liquid storage device 2 and connecting tube can be increased,
To reduce liquid storage device 1 and connecting tube 3 and extraneous heat exchange, reach preferable heat insulation effect.It will of course be understood that
It is that the heat insulation coating, heat-preservation cotton layer and insulating layer can combine setting, for example be set simultaneously on the liquid storage device 1
Set heat insulation coating and heat-preservation cotton layer.
The heating structure 4 by a variety of set-up modes, the heating structure 5 be arranged the liquid storage device 2 outer wall and/or
On inner wall, and/or, the heating structure 5 is arranged in the connecting tube 3, it is preferable that the first pipeline section 31 of the connecting tube 3
Vertical section 311 inner wall and/or outer wall on be provided with the heating structure 5.
In a preferred embodiment, as shown in figure 4, the connecting tube 3 is bilayer sleeve, the bilayer sleeve is constituted
Two layers of pipe between have gap 41, the heating structure 4 be heating tape, the heating tape is set to the second of the connecting tube
In the gap 41 of pipeline section 32, and along 32 uniform winding of the second pipeline section.When the heating structure 5 is opened, the heating
Structure 5 heats second pipeline section 32, and then is heated to the refrigerant in the liquid storage device 2.It is preferred at another
Embodiment in, as shown in figure 5, the heating tape is coated on the outer wall of the second pipeline section 32 of the connecting tube 3, and along institute
State the extending direction uniform winding of the second pipeline section 32.In an alternate embodiment, as shown in fig. 6, the heating structure 5
For heating tape, it is arranged on the outer wall of the liquid storage device 2 and is provided with the insulating layer with multi-layer heat preserving unit, the heat-insulation unit
Between there is gap 41, the heating tape to be arranged between the gap 41, extend along the short transverse of the liquid storage device 2,
To be heated to the liquid storage device 2, and then the refrigerant in the liquid storage device 2 is heated.As shown in fig. 7, the heating
Band is arranged on the outer wall of the liquid storage device 2, extends along the short transverse of the liquid storage device 2.As shown in Figure 8 and Figure 9, described
Heating tape is arranged in the vertical section 311 of the first pipeline section 31 of the connecting tube 3, to entering the refrigerant in the connecting tube 3
It is heated, to ensure that the refrigerant entered in the connecting tube 3 is gaseous coolant.Between Fig. 8 and Fig. 9 difference lies in,
Heating tape in Fig. 9 is arranged in the gap of the insulating layer of the first pipeline section 31, and the heating tape in Fig. 8 is arranged in first pipeline section
On 31 outer wall.It is, of course, understood that various combinations can be carried out between above-mentioned each embodiment, it is more preferable to obtain
Heating effect.
Present invention also provides a kind of air-conditioning systems, including compressor 1, further include liquid storage device assembly as described above, institute
The connecting tube 3 for stating liquid storage device assembly is connected with the air entry 11 of the compressor 1, to ensure to enter in the compressor 1
Refrigerant be gaseous coolant, avoid compressor 1 occur absorbing gas belt liquid operation, extend compressor 1 service life.
Those skilled in the art will readily recognize that under the premise of not conflicting, above-mentioned each preferred embodiment can be free
Ground combination, superposition.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for those skilled in the art
For, the present invention can have various modifications and changes.It is all within spirit and principles of the present invention made by any modification, equivalent
Replace, improve etc., it should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of liquid storage device assembly, including liquid storage device and connecting tube, the suction that the liquid storage device passes through the connecting tube and compressor
Gas port is connected, which is characterized in that is provided with insulation construction in the liquid storage device and/or the connecting tube；And/or
It is provided with heating structure in the liquid storage device and/or the connecting tube.
2. liquid storage device assembly according to claim 1, which is characterized in that the insulation construction includes being arranged in the liquid storage
Insulating layer outside device and/or the connecting tube.
3. liquid storage device assembly according to claim 2, which is characterized in that the insulating layer includes being coated on the liquid storage device
And/or the heat insulation coating on the surface of the connecting tube；And/or
The insulating layer includes the heat-preservation cotton layer being wrapped in the liquid storage device and/or the connecting tube；And/or
The insulating layer includes multi-layer heat preserving unit, has gap between the adjacent heat-insulation unit.
4. liquid storage device assembly according to claim 3, which is characterized in that be provided with the heating structure in the gap.
5. the liquid storage device assembly according to one of Claims 1-4, which is characterized in that the liquid storage device assembly further includes sense
Warm element, the temperature-sensing element are used to detect the temperature of the liquid storage device and/or the refrigerant in the connecting tube.
6. the liquid storage device assembly according to one of Claims 1-4, which is characterized in that the heating structure is arranged described
On the outer wall and/or inner wall of liquid storage device；And/or
The heating structure is arranged on the outer wall and/or inner wall of the liquid storage device.
7. liquid storage device assembly according to claim 6, which is characterized in that the connecting tube includes being located at outside the liquid storage device
Second pipeline section of first pipeline section in portion and the top for extending into the liquid storage device and extending to the liquid storage device.
8. liquid storage device assembly according to claim 7, which is characterized in that it is provided with gas-liquid separation plate in the liquid storage device,
One end of second pipeline section connects first pipeline section, and the other end is located at the top of the liquid storage device, the gas-liquid separation plate
Between the import and the other end of second pipeline section of the liquid storage device.
9. liquid storage device assembly according to claim 7, which is characterized in that be provided with oil return on the tube wall of second pipeline section
Hole, the oil return hole are arranged close to the outlet of the liquid storage device.
10. liquid storage device assembly according to claim 7, which is characterized in that first pipeline section includes vertical section and transverse direction
One end of section, the vertical section connects second pipeline section, and the other end of the vertical section connects one end of the traversing section, institute
The other end for stating traversing section connects the air entry of the compressor, is provided on the inner wall and/or outer wall of the vertical section described
Heating structure.
11. a kind of air-conditioning system, including compressor, which is characterized in that further include the liquid storage device described in one of claims 1 to 10
The connecting tube of component, the liquid storage device assembly is connected with the air entry of the compressor.
12. a kind of control method of liquid storage device assembly as claimed in claim 5, which is characterized in that
When the temperature of temperature-sensing element detection is less than the first preset temperature, controls the heating structure and heated；
When the temperature of the temperature-sensing element is higher than the second preset temperature, controls the heating structure and stop heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810001043.XA CN108375252A (en) | 2018-01-02 | 2018-01-02 | Liquid storage device assembly and its control method, air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810001043.XA CN108375252A (en) | 2018-01-02 | 2018-01-02 | Liquid storage device assembly and its control method, air-conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108375252A true CN108375252A (en) | 2018-08-07 |
Family
ID=63016429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810001043.XA Pending CN108375252A (en) | 2018-01-02 | 2018-01-02 | Liquid storage device assembly and its control method, air-conditioning system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108375252A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112113371A (en) * | 2020-08-28 | 2020-12-22 | 珠海格力电器股份有限公司 | Liquid storage tank condensation-preventing structure, liquid storage tank and compressor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2522805Y (en) * | 2001-10-10 | 2002-11-27 | 清华同方人工环境有限公司 | Gas-liquid separator used in heat-pump system |
| KR100622604B1 (en) * | 2005-03-04 | 2006-09-13 | 엘에스전선 주식회사 | Gas engine heat pump with an enhanced accumulator |
| CN1888748A (en) * | 2005-06-27 | 2007-01-03 | 海尔集团公司 | Low-temperature heat pump air conditioner and automatic defrosting method |
| JP2008020087A (en) * | 2006-07-11 | 2008-01-31 | Matsushita Electric Ind Co Ltd | Accumulator |
| CN202056969U (en) * | 2011-04-06 | 2011-11-30 | 广东机电职业技术学院 | Air conditioner structure capable of improving low-temperature heating performance |
| CN104197596A (en) * | 2014-09-18 | 2014-12-10 | 山东宏力热泵能源股份有限公司 | Self-control device for low-temperature liquid impact prevention of refrigeration compressor and self-control method |
| CN207945871U (en) * | 2018-01-02 | 2018-10-09 | 珠海格力电器股份有限公司 | Liquid storage device assembly and air-conditioning system |
-
2018
- 2018-01-02 CN CN201810001043.XA patent/CN108375252A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2522805Y (en) * | 2001-10-10 | 2002-11-27 | 清华同方人工环境有限公司 | Gas-liquid separator used in heat-pump system |
| KR100622604B1 (en) * | 2005-03-04 | 2006-09-13 | 엘에스전선 주식회사 | Gas engine heat pump with an enhanced accumulator |
| CN1888748A (en) * | 2005-06-27 | 2007-01-03 | 海尔集团公司 | Low-temperature heat pump air conditioner and automatic defrosting method |
| JP2008020087A (en) * | 2006-07-11 | 2008-01-31 | Matsushita Electric Ind Co Ltd | Accumulator |
| CN202056969U (en) * | 2011-04-06 | 2011-11-30 | 广东机电职业技术学院 | Air conditioner structure capable of improving low-temperature heating performance |
| CN104197596A (en) * | 2014-09-18 | 2014-12-10 | 山东宏力热泵能源股份有限公司 | Self-control device for low-temperature liquid impact prevention of refrigeration compressor and self-control method |
| CN207945871U (en) * | 2018-01-02 | 2018-10-09 | 珠海格力电器股份有限公司 | Liquid storage device assembly and air-conditioning system |
Non-Patent Citations (1)
| Title |
|---|
| 杨小灿, 国防工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112113371A (en) * | 2020-08-28 | 2020-12-22 | 珠海格力电器股份有限公司 | Liquid storage tank condensation-preventing structure, liquid storage tank and compressor |
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