CN114279729A - Air conditioner butt joint device and system - Google Patents
Air conditioner butt joint device and system Download PDFInfo
- Publication number
- CN114279729A CN114279729A CN202111502050.6A CN202111502050A CN114279729A CN 114279729 A CN114279729 A CN 114279729A CN 202111502050 A CN202111502050 A CN 202111502050A CN 114279729 A CN114279729 A CN 114279729A
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- China
- Prior art keywords
- air conditioner
- branch pipe
- filter
- way valve
- outdoor unit
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- 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.)
- Pending
Links
- 210000001503 joint Anatomy 0.000 title abstract description 23
- 239000003507 refrigerant Substances 0.000 claims abstract description 45
- 238000012360 testing method Methods 0.000 claims abstract description 31
- 238000003032 molecular docking Methods 0.000 claims description 24
- 238000004378 air conditioning Methods 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 abstract description 11
- 230000003749 cleanliness Effects 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract 1
- 230000002457 bidirectional effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Abstract
The invention discloses an air conditioner butt joint device and a system, comprising: the filter comprises a filter, a branch pipe and an end cover assembly, wherein the branch pipe is provided with a first branch pipe and a second branch pipe which are communicated with the filter through the end cover assembly; one end of the branch pipe is embedded into one end of the end cover assembly, and the middle of the branch pipe is of a hollow structure. The invention has the advantages that the air conditioner test does not need to recover the refrigerant, and solves the problems of difficult refrigerant recovery, or incomplete system performance fluctuation and substandard energy efficiency; the device is simple, the testing cost is reduced, and the delivery quality of the air conditioner is ensured; the two-way filter is used for filtering impurities and improving the cleanliness of the system.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner butt joint device and an air conditioner butt joint system.
Background
In order to ensure that the complete machine functions normally when the air conditioner leaves the factory and the system runs stably, the air conditioner external machine needs to simulate the customer scene to the internal machine standard machine before leaving the factory; for a commercial air conditioner with large cooling capacity, a plurality of groups of internal machines need to be connected in a butt joint mode, the problem of difficulty in refrigerant recovery exists, if the deviation of the refrigerant quantity of the air conditioner exceeds 1%, the performance of the air conditioner is affected, and the risk that the energy efficiency of part of the air conditioner on the market does not reach the standard exists.
Disclosure of Invention
To overcome the above-mentioned shortcomings of the prior art, the present invention is directed to an air conditioner docking device and system.
The invention solves the problems of air conditioner performance fluctuation and energy efficiency substandard caused by difficult or incomplete recovery of the refrigerant, and adopts the technical scheme that: an air conditioner docking device comprising: the filter comprises a filter, a branch pipe and an end cover assembly, wherein the branch pipe is provided with a first branch pipe and a second branch pipe which are communicated with the filter through the end cover assembly; one end of the branch pipe is embedded into one end of the end cover assembly, and the middle of the branch pipe is of a hollow structure.
As a further improvement of the invention: the filter is a two-way filter.
As a further improvement of the invention: the filter comprises a filter element, a cylinder body and a two-way valve, wherein the cylinder body is arranged at two ends in the filter, an inner cavity is formed by the cylinder body and the inner wall of the filter in a surrounding mode, and the filter element is arranged in the inner cavity; the two sides of the inner cavity are provided with the two-way valve, one end of the two-way valve is connected with the filter element, and the other end of the two-way valve is connected with the other end of the end cover component.
As a further improvement of the invention: a movable cavity is arranged between the other end of the end cover component and the cylinder body.
As a further improvement of the invention: the branch pipe is a high-pressure resin pipe.
As a further improvement of the invention: and the other end of the branch pipe is provided with a fixing structure.
An air conditioner docking system using the air conditioner docking device includes: the system comprises an air conditioner outdoor unit to be tested, a compressor, a four-way valve and a control device;
one end of the air conditioner outdoor unit is connected with the first branch pipe sequentially through an electronic expansion valve and a liquid valve, and the other end of the air conditioner outdoor unit is connected with the first end of the four-way valve; the second end of the four-way valve is connected with the second branch pipe through an air valve, the third end of the four-way valve is connected with one end of the compressor, and the other end of the compressor is connected with the fourth end of the four-way valve; the control device is used for controlling the frequency of the compressor, the frequency of the fan and the opening degree of the electronic expansion valve.
As a further improvement of the invention: before the air-conditioning outdoor unit to be tested is subjected to heating/refrigerating test, the control device controls 15% -25% of refrigerant of the standard refrigerant content of the air-conditioning outdoor unit to be tested to be filled into the air-conditioning outdoor unit to be tested.
As a further improvement of the invention: the control device controls the balance pressure of the butt joint system to be lower than the saturation pressure of the refrigerant.
Compared with the prior art, the invention has the beneficial effects that:
the air conditioner docking device replaces a combined internal machine to carry out factory online test, so that equipment and operation are simplified, cost is reduced, factory test quality of an air conditioner external machine is ensured, a refrigerant is not required to be recycled, and product performance stability is ensured; the air conditioner butt joint device is composed of a bidirectional filter with a high-pressure resin pipe, impurities mixed in a refrigerant are removed by the bidirectional filter, and the cleanliness of an air conditioner system is guaranteed.
Before the air conditioner butt joint system is tested, 15% -25% of refrigerant of the standard refrigerant content of the air conditioner external unit to be tested is filled into the air conditioner external unit to be tested, the air conditioner is controlled to run through the control device running specific logic, so that the air conditioner external unit runs in a cooling mode firstly and runs in a heating mode secondly under the condition of not having the internal unit to be tested; because the gaseous refrigerant is in the externally-connected bidirectional filter in the heating mode, the amount of the refrigerant lost by tightly closing the valve and pulling the pipe after the test is finished is about 2 g and is far less than 1% of the rated filling amount of the air conditioning refrigerant, the performance of an air conditioning system cannot be influenced, the refrigerant does not need to be recycled, another part of refrigerant is replenished after the test is finished, and the test efficiency and the outgoing quality of an air conditioner external unit are improved.
Drawings
Fig. 1 is a schematic structural diagram of an air conditioner docking device.
Fig. 2 is a schematic cycle diagram of a filter and air conditioner external unit docking system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions of the present invention with reference to the following embodiments of the present invention and the accompanying drawings:
it should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1, in order to solve the problems of difficult refrigerant recovery and incomplete recovery causing performance fluctuation and energy efficiency failure of an air conditioning system during air conditioning test, the invention provides an air conditioning docking device, comprising: the filter comprises a filter 1, branch pipes and an end cover assembly 2, wherein the branch pipes are provided with a first branch pipe 31 and a second branch pipe 32 and are communicated with the filter 1 through the end cover assembly 2; one end of the branch pipe is embedded into one end of the end cover component 2, and the middle part of the branch pipe is of a hollow structure.
In particular, the filter 1 is a bidirectional filter.
Specifically, the first branch pipe 31 and the second branch pipe 32 are high-pressure resin pipes.
Specifically, the other ends of the first branch pipe 31 and the second branch pipe 32 are provided with fixing structures.
The first branch pipe 31 is connected with a liquid valve 6 of an air conditioner outdoor unit 4, and the second branch pipe 32 is connected with a gas valve 7 of the air conditioner outdoor unit 4, so that the bidirectional filter is connected with the air conditioner outdoor unit 4; the fixing structure of the first branch pipe 31 is used for fixing and sealing the connection part of the first branch pipe 31 and the liquid valve 6; the fixing structure of the second branch pipe 32 is used for fixing and sealing the joint of the second branch pipe 32 and the air valve 7, and the fixing structure is used for preventing the refrigerant from being leaked and recycled difficultly and being wasted when the air conditioner outdoor unit 4 is tested, or preventing the test from being inaccurate, so that the delivery test of the air conditioner outdoor unit 4 is inaccurate.
In addition, the air conditioner butt joint device can be matched with all air conditioner external units 4 with different refrigerant contents, and universal butt joint is realized.
The bidirectional filter with the high-pressure resin pipe is used for replacing a combined inner machine to carry out on-line delivery test on the air conditioner outdoor unit 4, the device is simple in structure and easy to assemble, and delivery quality of the outdoor unit is guaranteed; the air conditioner docking device is used for testing the air conditioner external unit 4, the refrigerant does not need to be recovered, and the risks of performance fluctuation and energy efficiency substandard of an air conditioner system caused by incomplete refrigerant recovery are avoided; and ensuring that the energy efficiency of the product leaving the air conditioner outdoor unit 4 reaches the standard 100%.
According to the invention, by designing the bidirectional filter, impurities mixed in during testing are removed, the cleanliness of the air-conditioning system is improved, and the performance stability of the air-conditioning outdoor unit 4 is ensured.
Specifically, the filter 1 comprises a filter element, a cylinder and a two-way valve, wherein the cylinder is arranged at two ends inside the filter 1 and forms an inner cavity with the inner wall of the filter 1 in a surrounding manner, and the filter element is arranged in the inner cavity; the two sides of the inner cavity are provided with the two-way valve, one end of the two-way valve is connected with the filter element, and the other end of the two-way valve is connected with the other end of the end cover component 2.
Specifically, a movable cavity is arranged between the other end of the end cover assembly 2 and the cylinder body.
The movable cavity is used for facilitating the on-off state in the sealed space of the two-way valve, simulating the running state of an air conditioner indoor unit to the maximum extent and ensuring the smoothness of the factory test of the outdoor unit.
The invention provides a system for testing an indoor unit standard machine butt joint outdoor unit, which aims to solve the problems that the refrigerant recovery is difficult, the fluctuation of the amount of the refrigerant is large, the air conditioning performance is not up to standard and the cleanliness of the system is difficult to ensure in a testing method of the indoor unit standard machine butt joint outdoor unit commonly used in the air conditioning industry, and the system comprises the following components:
as shown in fig. 2, an air conditioner docking system using the above air conditioner docking apparatus includes: the air conditioner outdoor unit 4 to be tested, a compressor 9, a four-way valve 8 and a control device;
one end of the air conditioner outdoor unit 4 is connected with the first branch pipe 31 sequentially through an electronic expansion valve 5 and a liquid valve 6, and the other end of the air conditioner outdoor unit 4 is connected with the first end of the four-way valve 8; a second end of the four-way valve 8 is connected with the second branch pipe 32 through an air valve 7, a third end of the four-way valve 8 is connected with one end of the compressor 9, and the other end of the compressor 9 is connected with a fourth end of the four-way valve 8; the control device is used for controlling the frequency of the compressor 9, the frequency of the fan and the opening degree of the electronic expansion valve 5.
Because the heat exchange amount of the air conditioner docking device can be almost ignored, if the refrigerant perfusion amount during the test of the internal unit is in accordance with the docking standard, the system can generate high-pressure protection and hydraulic compression and cannot stably run; therefore, before testing, a part of refrigerant is filled into the to-be-tested outdoor unit according to a certain specific proportion of 15% -25%, a specific control program is operated, the frequency of the compressor 9, the frequency of the fan and the opening degree of the electronic expansion valve 5 are controlled, the system is guaranteed to operate safely and stably under the working condition of low refrigerant quantity, and all key technologies and indexes meet the requirements of specifications of the compressor 9. Such as: after the compressor 9 is started for 2min, the exhaust superheat degree is larger than 5 ℃, the high pressure and the low pressure are in a safe operation range, the air conditioner outdoor unit 4 can stably operate without an indoor unit, and the detection of parts of the whole machine is completed.
Specifically, before the air-conditioning outdoor unit 4 to be tested is subjected to a heating/cooling test, the control device controls 15% -25% of refrigerant of the standard refrigerant content of the air-conditioning outdoor unit 4 to be tested to be filled into the air-conditioning outdoor unit 4 to be tested.
The control device controls the balance pressure of the butt joint system to be lower than the saturation pressure of the refrigerant.
The refrigerant volume of the air conditioner outdoor unit 4 to be tested in production is determined through early-stage test debugging, and stable operation of the air conditioner system after being in butt joint with the air conditioner butt joint device is guaranteed.
After the air conditioner butt joint device is in butt joint with an air conditioner system, the control module controls a specific control time sequence to operate, a refrigeration mode test is firstly carried out, a heating mode test is then carried out, statistics is directly carried out after detection of parts of the whole air conditioner is finished, and a liquid valve 6 and an air valve 7 are directly closed after the test is finished and shutdown is finished.
Because the refrigerant in the butt joint device is gaseous after the machine is stopped, about 2 g of the refrigerant is far less than 1% of the rated charging amount of the air conditioning refrigerant, the system performance is not influenced, the refrigerant does not need to be recycled, and the other part of the refrigerant is replenished after the test is finished. Refrigerant recovery operation is not needed, and the problems of large performance fluctuation and substandard energy efficiency caused by incomplete refrigerant recovery are solved. After the outdoor unit is tested, the other part of refrigerant is replenished, the delivery test is completed after the leakage detection is qualified, and the air conditioner butt joint device and the air conditioner butt joint system can ensure that the product energy efficiency reaches 100 percent and reaches the standard.
The main functions of the invention are as follows: the invention replaces the indoor unit of the air conditioner with the butt joint device composed of the high-pressure resin pipe and the two-way filter to carry out factory test on the outdoor unit, the butt joint device has simple structure and simple operation, the refrigerant recovery operation is not needed when the device is used for carrying out factory test, after the test is finished, the refrigerant quantity lost by closing the valve and pulling the pipe is less than 2 g, and the problems of difficult refrigerant recovery and waste and the like in the prior art are well solved; and the bidirectional filter can remove impurities mixed in during testing, so that the cleanliness of the air-conditioning system is improved, and the outgoing quality and energy efficiency of the air-conditioning outdoor unit are ensured.
In summary, after reading the present disclosure, those skilled in the art can make various other corresponding changes without creative mental labor according to the technical solutions and concepts of the present disclosure, and all of them are within the protection scope of the present disclosure.
Claims (9)
1. An air conditioner docking assembly, comprising: the filter comprises a filter, a branch pipe and an end cover assembly, wherein the branch pipe is provided with a first branch pipe and a second branch pipe which are communicated with the filter through the end cover assembly; one end of the branch pipe is embedded into one end of the end cover assembly, and the middle of the branch pipe is of a hollow structure.
2. An air conditioning docking assembly as recited in claim 1 wherein said filter is a bi-directional filter.
3. An air conditioner docking device as claimed in claim 1 or 2, wherein said filter comprises a filter element, a cylinder and a two-way valve, said cylinder is disposed at two ends of the interior of said filter and encloses an inner cavity with the inner wall of said filter, said filter element is disposed in said inner cavity; the two sides of the inner cavity are provided with the two-way valve, one end of the two-way valve is connected with the filter element, and the other end of the two-way valve is connected with the other end of the end cover component.
4. An air conditioner docking assembly as set forth in claim 3 wherein a movable chamber is provided between said other end of said end cap assembly and said barrel.
5. An air conditioner docking device as defined in claim 4 wherein said branch pipe is a high pressure resin pipe.
6. An air-conditioning docking device as claimed in claim 4 or 5, wherein the other end of the branch pipe is provided with a fixing structure.
7. An air conditioning docking system using the air conditioning docking device as claimed in any one of claims 1 to 6, comprising: the system comprises an air conditioner outdoor unit to be tested, a compressor, a four-way valve and a control device;
one end of the air conditioner outdoor unit is connected with the first branch pipe sequentially through an electronic expansion valve and a liquid valve, and the other end of the air conditioner outdoor unit is connected with the first end of the four-way valve; the second end of the four-way valve is connected with the second branch pipe through an air valve, the third end of the four-way valve is connected with one end of the compressor, and the other end of the compressor is connected with the fourth end of the four-way valve; the control device is used for controlling the frequency of the compressor, the frequency of the fan and the opening degree of the electronic expansion valve.
8. The air conditioner docking system as claimed in claim 7, wherein the control device controls 15% to 25% of refrigerant of a standard refrigerant content of the outdoor unit to be tested to be filled into the outdoor unit before the outdoor unit to be tested performs the heating/cooling test.
9. An air conditioning docking system as claimed in claim 7, wherein said control means controls the equilibrium pressure of said docking system to be lower than the refrigerant saturation pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111502050.6A CN114279729A (en) | 2021-12-09 | 2021-12-09 | Air conditioner butt joint device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111502050.6A CN114279729A (en) | 2021-12-09 | 2021-12-09 | Air conditioner butt joint device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114279729A true CN114279729A (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111502050.6A Pending CN114279729A (en) | 2021-12-09 | 2021-12-09 | Air conditioner butt joint device and system |
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| Country | Link |
|---|---|
| CN (1) | CN114279729A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59197775A (en) * | 1983-04-21 | 1984-11-09 | ダイキン工業株式会社 | Method of operating and inspecting outdoor unit |
| KR19990004742A (en) * | 1997-06-30 | 1999-01-25 | 윤종용 | Performance tester for air conditioner outdoor unit |
| CN101776532A (en) * | 2010-01-26 | 2010-07-14 | 广东美的集团芜湖制冷设备有限公司 | Detection device and detection method used for detecting outdoor unit of air conditioner |
| CN102818406A (en) * | 2012-08-21 | 2012-12-12 | 广东美的电器股份有限公司 | Refrigerant recovery device and method of heat pump of air-conditioner and outdoor unit of air-conditioner |
| CN203336885U (en) * | 2013-06-07 | 2013-12-11 | 新乡市万和滤清器有限公司 | Filter for air conditioner commodity inspection system and air conditioner commodity inspection system using filter |
| CN104236937A (en) * | 2013-06-08 | 2014-12-24 | 广东美的暖通设备有限公司 | Air-conditioner indoor-unit-free detection device and method |
| CN109374331A (en) * | 2018-12-17 | 2019-02-22 | 南京天加环境科技有限公司 | A kind of air-conditioner outdoor unit test device |
| CN213841425U (en) * | 2020-12-22 | 2021-07-30 | 浙江中广电器股份有限公司 | Air conditioner filter capable of collecting impurities and air conditioner |
-
2021
- 2021-12-09 CN CN202111502050.6A patent/CN114279729A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59197775A (en) * | 1983-04-21 | 1984-11-09 | ダイキン工業株式会社 | Method of operating and inspecting outdoor unit |
| KR19990004742A (en) * | 1997-06-30 | 1999-01-25 | 윤종용 | Performance tester for air conditioner outdoor unit |
| CN101776532A (en) * | 2010-01-26 | 2010-07-14 | 广东美的集团芜湖制冷设备有限公司 | Detection device and detection method used for detecting outdoor unit of air conditioner |
| CN102818406A (en) * | 2012-08-21 | 2012-12-12 | 广东美的电器股份有限公司 | Refrigerant recovery device and method of heat pump of air-conditioner and outdoor unit of air-conditioner |
| CN203336885U (en) * | 2013-06-07 | 2013-12-11 | 新乡市万和滤清器有限公司 | Filter for air conditioner commodity inspection system and air conditioner commodity inspection system using filter |
| CN104236937A (en) * | 2013-06-08 | 2014-12-24 | 广东美的暖通设备有限公司 | Air-conditioner indoor-unit-free detection device and method |
| CN109374331A (en) * | 2018-12-17 | 2019-02-22 | 南京天加环境科技有限公司 | A kind of air-conditioner outdoor unit test device |
| CN213841425U (en) * | 2020-12-22 | 2021-07-30 | 浙江中广电器股份有限公司 | Air conditioner filter capable of collecting impurities and air conditioner |
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