CN105784281A - Air conditioner indoor unit leakage detection method - Google Patents
Air conditioner indoor unit leakage detection method Download PDFInfo
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- CN105784281A CN105784281A CN201410823170.XA CN201410823170A CN105784281A CN 105784281 A CN105784281 A CN 105784281A CN 201410823170 A CN201410823170 A CN 201410823170A CN 105784281 A CN105784281 A CN 105784281A
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- air conditioner
- evaporator assemblies
- indoor apparatus
- leak
- leakage detector
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Abstract
The invention provides an air conditioner indoor unit leakage detection method. The air conditioner indoor unit leakage detection method is characterized in that S1, an outlet pipe of an evaporator assembly is sealed by a choke plug; S2, gas mixture formed by the hydrogen and at least one additional gas can be injected in the evaporator assembly by the inlet pipe of the evaporator assembly, and the injection can be stopped, when the pressure in the evaporator assembly reaches the set pressure; S3, a hydrogen leakage detector is used to detect various welding spots of the evaporator assembly; when the hydrogen leakage detector is used to give alarms, the leakage of the evaporator assembly occurs, and then the leakage detection can be finished, after the leakage points are found out; when the hydrogen leakage detector is not used to give alarms, the evaporator assembly passes the leakage detection, and the next installation process can be carried out. The air conditioner indoor unit leakage detection method is advantageous in that the air conditioner indoor unit leakage detection accuracy can be improved, the air conditioner leakage detection costs can be reduced, and the production efficiency and the product quality of the air conditioner indoor unit can be improved; and at the same time, the content of the halogen directly discharged in the air can be reduced, and the use is environmental friendly and safe.
Description
Technical field
The present invention relates to air-conditioner technical field, particularly relate to the leak hunting method of a kind of indoor apparatus of air conditioner.
Background technology
In the production process of air-conditioning, helium leak test technology is often used to search small leakage.And pressurize test and immersion method length are used for detecting bigger leakage.For a long time, helium detection technique is unique method monitoring little leakage in refrigeration, air conditioner industry.
At present, in split, machine, cabinet-type air conditioner leak detection medium are coolant, leak detection mode adopts HLD5000 coolant inhaler leak detector to detect, but there is problems in that (1) all irrigates a certain amount of coolant according to machine on average every split, need to emit coolant after client's installation, so can cause the waste of coolant, hunt leak relatively costly；(2) coolant is directly discharged to destroy in air the ozone layer of air, causes environmental pollution；(3) false alarm of HLD5000 coolant inhaler leak detector is high, it is impossible to effectively verifies that halogen is revealed, hunts leak inefficient.
Summary of the invention
In view of the present situation of prior art, it is an object of the invention to provide the leak hunting method of a kind of indoor apparatus of air conditioner, improve the accuracy of leak detection of space indoor set, and reduce leak detection cost, improve quality and the production efficiency of indoor apparatus of air conditioner.
For achieving the above object, the present invention adopts the following technical scheme that
The leak hunting method of a kind of indoor apparatus of air conditioner, comprises the steps:
S1, the outlet plug of evaporator assemblies is sealed；
S2, from the inlet tube of described evaporator assemblies, the admixture of gas that formed of hydrogen and at least one additional gas is injected in described evaporator assemblies, after the pressure in described evaporator assemblies reaches setting pressure, stop perfusion；
S3, employing hydrogen gas leakage detector detect each solder joint of described evaporator assemblies, if reporting to the police occurs in described hydrogen gas leakage detector, then the existence of described evaporator assemblies leaks, and terminates leak detection after finding out leakage point；If described hydrogen gas leakage detector is not reported to the police, then the leak detection of described evaporator assemblies is qualified, enters lower one installation procedure.
Wherein in an embodiment, described at least one additional gas is one or more in nitrogen, helium and carbon dioxide.
Wherein in an embodiment, 0.3Mpa≤described setting pressure≤0.8Mpa.
Wherein in an embodiment, described hydrogen content in described admixture of gas is less than 8%, and more than 1%.
Wherein in an embodiment, also comprise the steps: after the leak detection of described evaporator assemblies is qualified
The inlet tube sealing evaporator assemblies with plug carries out pressurize.
Wherein in an embodiment, also comprise the steps:
The indoor apparatus of air conditioner assembling described evaporator assemblies is packed and places the setting time after joint sealing；
Adopting described hydrogen gas leakage detector to detect the gas in the packing crates of described indoor set, if reporting to the police occurs in described hydrogen gas leakage detector, then there is leakage in described evaporator assemblies, terminates leak detection；If described hydrogen gas leakage detector is not reported to the police, then the leak detection of described evaporator assemblies is qualified.
Wherein in an embodiment, described set the time as 2-24 hour.
Wherein in an embodiment, after the leak detection of described evaporator assemblies is qualified, also include the step reclaiming described admixture of gas.
The invention has the beneficial effects as follows:
The leak hunting method of the indoor apparatus of air conditioner of the present invention, hunted leak to evaporator assemblies by the admixture of gas perfusion that hydrogen and at least one additional gas are formed, improve the accuracy of leak detection of indoor apparatus of air conditioner, reduce the leak detection cost of air-conditioner, and by using high-precision hydrogen gas leakage detector to detect, thus improve production efficiency and the product quality of indoor apparatus of air conditioner.Simultaneously as adopt admixture of gas to substitute original coolant as leak detection medium, decrease the content of halogen being directly discharged in air, environmental protection and safer.
Accompanying drawing explanation
Fig. 1 is the flow chart of leak hunting method one embodiment of the indoor apparatus of air conditioner of the present invention.
Detailed description of the invention
In order to make technical scheme clearly, below in conjunction with accompanying drawing, the leak hunting method of the indoor apparatus of air conditioner of the present invention is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain that the present invention is not intended to limit the present invention.
Shown in Figure 1, the leak hunting method of the indoor apparatus of air conditioner of one embodiment of the invention, comprise the steps:
S1, by the outlet of evaporator assemblies with plug seal, so be evaporator assemblies leak detection create condition, it is simple to airtight evaporator assemblies.
S2, admixture of gas injection evaporator assemblies hydrogen and at least one additional gas formed from the inlet tube of evaporator assemblies, the pressure in device assembly to be evaporated stops perfusion after reaching setting pressure；Preferably, at least one additional gas is one or more in nitrogen, helium and carbon dioxide, and the content that hydrogen is in admixture of gas is less than 8%, and more than 1%, in actual leak detection process, should determine the size of hydrogen content according to concrete production process, the hydrogen content in range above is safest.
Preferably, 0.3Mpa≤setting pressure≤0.8Mpa.Namely, when the pressure in evaporator assemblies reaches 0.3MPa～0.8MPa, stop irrigating admixture of gas in vaporizer.In actual leak detection process, the size of setting pressure should be determined according to concrete production process.
S3, employing hydrogen gas leakage detector detect each solder joint of evaporator assemblies, if hydrogen gas leakage detector appearance is reported to the police, then evaporator assemblies existence leaks, and after finding out leakage point, end is hunted leak；If hydrogen gas leakage detector is not reported to the police, then evaporator assemblies leak detection is qualified, enters lower one installation procedure.Hydrogen gas leakage detector in the present embodiment should choose the hydrogen gas leakage detector meeting production requirement, meeting product quality requirement, and the concrete model of hydrogen gas leakage detector should be determined according to producing checking.
A basic step on air-conditioning general assembly production line is belonged to due to the leak detection of this indoor apparatus of air conditioner, therefore, the time adopting each solder joint of hydrogen gas leakage detector detection evaporator assemblies in step S3 should be less than or be equal to the productive temp of general assembly production line, to meet the productive temp of general assembly production line.Simultaneously, it is desirable to hydrogen gas leakage detector has higher susceptiveness, fin oil gas, damping block abnormal smells from the patient etc. namely the false alarm phenomenon caused can not occur.
In order to further ensure that indoor set is absent from the situation of leakage, also comprise the steps: after evaporator assemblies leak detection is qualified
The inlet tube sealing evaporator assemblies with plug carries out pressurize.
More preferably, also comprise the steps:
The indoor apparatus of air conditioner assembling evaporator assemblies is packed and places the setting time after joint sealing；Preferably, the time that sets was as 2-24 hour.
Adopting the gas in the packing crates of hydrogen gas leakage detector detection indoor set, if reporting to the police occurs in hydrogen gas leakage detector, then there is leakage in evaporator assemblies, terminates leak detection；If hydrogen gas leakage detector is not reported to the police, then evaporator assemblies leak detection is qualified.
After casing due to indoor apparatus of air conditioner, material in packing crates is many, the composition of gas is complex, therefore, in the process of the gas in the packing crates adopting hydrogen gas leakage detector detection indoor set, it is necessary to heighten the precision of hydrogen gas leakage detector so that hydrogen gas leakage detector can detect the content of hydrogen from the multiple gases composition in packing crates, thus judging whether this indoor set complete machine being equipped with evaporator assemblies exists leakage, it is ensured that the accuracy of leak detection.
More preferably, after evaporator assemblies leak detection is qualified, also includes the step of gas recovery mixture, so can save raw material, reduce the leak detection cost of indoor apparatus of air conditioner.
The leak hunting method of the indoor apparatus of air conditioner of the present invention, hunted leak to evaporator assemblies by the admixture of gas perfusion that hydrogen and at least one additional gas are formed, improve the accuracy of leak detection of indoor apparatus of air conditioner, reduce the leak detection cost of air-conditioner, and by using high-precision hydrogen gas leakage detector to detect, thus improve production efficiency and the product quality of indoor apparatus of air conditioner.Simultaneously as adopt admixture of gas to substitute original coolant as leak detection medium, decrease the content of halogen being directly discharged in air, environmental protection and safer.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. the leak hunting method of an indoor apparatus of air conditioner, it is characterised in that comprise the steps:
S1, the outlet plug of evaporator assemblies is sealed；
S2, from the inlet tube of described evaporator assemblies, the admixture of gas that formed of hydrogen and at least one additional gas is injected in described evaporator assemblies, after the pressure in described evaporator assemblies reaches setting pressure, stop perfusion；
S3, employing hydrogen gas leakage detector detect each solder joint of described evaporator assemblies, if reporting to the police occurs in described hydrogen gas leakage detector, then the existence of described evaporator assemblies leaks, and terminates leak detection after finding out leakage point；If described hydrogen gas leakage detector is not reported to the police, then the leak detection of described evaporator assemblies is qualified, enters lower one installation procedure.
2. the leak hunting method of indoor apparatus of air conditioner according to claim 1, it is characterised in that described at least one additional gas is one or more in nitrogen, helium and carbon dioxide.
3. the leak hunting method of indoor apparatus of air conditioner according to claim 1, it is characterised in that 0.3Mpa≤described setting pressure≤0.8Mpa.
4. the leak hunting method of indoor apparatus of air conditioner according to claim 1, it is characterised in that described hydrogen content in described admixture of gas is less than 8%, and more than 1%.
5. the leak hunting method of the indoor apparatus of air conditioner according to any one of claim 1-4, it is characterised in that also comprise the steps: after the leak detection of described evaporator assemblies is qualified
The inlet tube sealing evaporator assemblies with plug carries out pressurize.
6. the leak hunting method of indoor apparatus of air conditioner according to claim 5, it is characterised in that also comprise the steps:
The indoor apparatus of air conditioner assembling described evaporator assemblies is packed and places the setting time after joint sealing；
Adopting described hydrogen gas leakage detector to detect the gas in the packing crates of described indoor set, if reporting to the police occurs in described hydrogen gas leakage detector, then there is leakage in described evaporator assemblies, terminates leak detection；If described hydrogen gas leakage detector is not reported to the police, then the leak detection of described evaporator assemblies is qualified.
7. the leak hunting method of indoor apparatus of air conditioner according to claim 6,
Described set the time as 2-24 hour.
8. the leak hunting method of the indoor apparatus of air conditioner according to any one of claim 1-4, it is characterised in that:
The step reclaiming described admixture of gas is also included after the leak detection of described evaporator assemblies is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410823170.XA CN105784281A (en) | 2014-12-22 | 2014-12-22 | Air conditioner indoor unit leakage detection method |
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| CN201410823170.XA CN105784281A (en) | 2014-12-22 | 2014-12-22 | Air conditioner indoor unit leakage detection method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595978A (en) * | 2016-11-22 | 2017-04-26 | 首钢京唐钢铁联合有限责任公司 | Leak detection device and method |
| CN108151979A (en) * | 2017-12-13 | 2018-06-12 | 格力电器（武汉）有限公司 | A kind of air-conditioning leak detection system |
| CN108663173A (en) * | 2018-08-09 | 2018-10-16 | 安徽纽威吉新能源汽车技术有限公司 | A kind of vortex compressor of air conditioner intelligence leakage detection apparatus and detection method |
| CN110749396A (en) * | 2019-11-21 | 2020-02-04 | 格力电器（武汉）有限公司 | Air conditioner leakage detection process monitoring method and device and air conditioner leakage detection system |
| CN112345163A (en) * | 2020-10-16 | 2021-02-09 | 天津七所高科技有限公司 | Device and method for detecting air leakage position of welding seam of lower cover of automobile battery box |
| CN113176045A (en) * | 2021-04-21 | 2021-07-27 | 盛吉盛(宁波)半导体科技有限公司 | Leak rate detection device and method for semiconductor equipment |
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| GB2162327A (en) * | 1984-07-24 | 1986-01-29 | Shell Int Research | Process and device for checking the presence and condition of the valve seal of a container for a pressurized gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106595978A (en) * | 2016-11-22 | 2017-04-26 | 首钢京唐钢铁联合有限责任公司 | Leak detection device and method |
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| CN108151979B (en) * | 2017-12-13 | 2020-06-16 | 格力电器（武汉）有限公司 | Air conditioner leak detection system |
| CN108663173A (en) * | 2018-08-09 | 2018-10-16 | 安徽纽威吉新能源汽车技术有限公司 | A kind of vortex compressor of air conditioner intelligence leakage detection apparatus and detection method |
| CN110749396A (en) * | 2019-11-21 | 2020-02-04 | 格力电器（武汉）有限公司 | Air conditioner leakage detection process monitoring method and device and air conditioner leakage detection system |
| CN112345163A (en) * | 2020-10-16 | 2021-02-09 | 天津七所高科技有限公司 | Device and method for detecting air leakage position of welding seam of lower cover of automobile battery box |
| CN113176045A (en) * | 2021-04-21 | 2021-07-27 | 盛吉盛(宁波)半导体科技有限公司 | Leak rate detection device and method for semiconductor equipment |
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Application publication date: 20160720 |