CN104062083A - Air conditioner leakage detecting system and leakage detecting method thereof - Google Patents

Air conditioner leakage detecting system and leakage detecting method thereof Download PDF

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Publication number
CN104062083A
CN104062083A CN201410281104.4A CN201410281104A CN104062083A CN 104062083 A CN104062083 A CN 104062083A CN 201410281104 A CN201410281104 A CN 201410281104A CN 104062083 A CN104062083 A CN 104062083A
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China
Prior art keywords
air conditioner
leak
helium
leak detection
control device
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CN201410281104.4A
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Chinese (zh)
Inventor
钟明生
倪雪辉
张全营
杨兴刚
胡涛
吴寿勇
吕荔
吴振
梁子文
黄英文
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201410281104.4A priority Critical patent/CN104062083A/en
Publication of CN104062083A publication Critical patent/CN104062083A/en
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Abstract

The invention provides an air conditioner leak detection system and a leak detection method thereof. Its air conditioner leak hunting system includes helium leak hunting equipment and the negative pressure equipment of managing to find time, helium leak hunting equipment passes through the pipeline and manages to find time the negative pressure equipment intercommunication, the air conditioner is placed in the negative pressure equipment of managing to find time, the negative pressure equipment of managing to find time includes the leak detection case and the door plant that opens and shuts, the door plant that opens and shuts is installed on the leak detection case, the pipeline includes leak detection pipe and breather pipe, the one end of leak detection pipe is installed on helium leak hunting equipment, the other end of leak detection pipe passes the leak detection case and installs on the air conditioner, the one end of breather pipe is installed on helium leak hunting equipment, the other end of breather pipe is installed on the leak detection case, reach the reduction of operator and increase, shorten production.

Description

Air conditioner leak detection system and leak hunting method thereof
Technical field
The present invention relates to checkout equipment field, particularly relate to a kind of air conditioner leak detection system, and be applied to the air conditioner leak hunting method of above-mentioned air conditioner leak detection system.
Background technology
Usually, air conditioner two devices adopt the mode of malleation vacuum tank to hunt leak, and are filled with after the positive pressure helium of 1.2MPa in the inside of air conditioner two devices, and air conditioner two devices are put into helium inspection equipment box.Helium inspection equipment is extracted into the vacuum tightness of box house after 30Pa, opens helium mass spectrometer leak detector and hunts leak.Air conditioner two devices of hunting leak qualified are transported to general assembly department, and general assembly has been assembled and rear the leak detection of refrigerant and electronics is found time, filled to air conditioner.
But along with market is more and more higher to the quality requirements of air conditioner, produce progressively to the transition of lean, robotization, the reliability of above-mentioned detection mode can not meet user demand.
In view of above-mentioned defect, the inventor has obtained the invention finally through long research and practice.
Summary of the invention
Based on this, be necessary the problem of air conditioner leak detection process complexity, a kind of air conditioner leak detection system that reduces air conditioner leak detection operation is provided, and is applied to the air conditioner leak hunting method of above-mentioned air conditioner leak detection system.Above-mentioned purpose is achieved through the following technical solutions:
A kind of air conditioner leak detection system, comprises helium leak detection device and the negative pressure equipment of finding time, described helium leak detection device by pipeline with described in the negative pressure equipment of finding time be communicated with, described in air conditioner is placed on, find time in negative pressure equipment;
The described negative pressure equipment of finding time comprises leak hunting box and folding door-plate, and described folding door-plate is arranged on described leak hunting box;
Described pipeline comprises leak detection tube and snorkel, one end of described leak detection tube is arranged on described helium leak detection device, the other end of described leak detection tube is arranged on described air conditioner through described leak hunting box, one end of described snorkel is arranged on described helium leak detection device, and the other end of described snorkel is arranged on described leak hunting box.
Above-mentioned purpose can also further realize by following technical proposals.
Therein in an embodiment, described helium leak detection device comprises vacuum extractor, helium charging unit, pick-up unit, retracting device and control device, described control device is connected with described vacuum extractor, described pick-up unit, described helium charging unit, described retracting device respectively, and described control device is controlled respectively the work of described vacuum extractor, described helium charging unit, described pick-up unit, described retracting device and stopped.
In an embodiment, described helium leak detection device also comprises warning device therein, and described warning device is connected with described control device, and described air conditioner has been hunted leak, and described warning device is reported to the police.
In an embodiment, described pick-up unit is helium Mass Spectrometer Method instrument therein.
Therein in an embodiment, described in vacuumize negative pressure equipment and also comprise flow-disturbing fan blade, described flow-disturbing fan blade is arranged on the inside of described leak hunting box.
In an embodiment, described flow-disturbing fan blade is connected with described control device therein, described in described control device control the motion of flow-disturbing fan blade with stop.
In an embodiment, described control device is PLC controller therein.
Also relate to a kind of air conditioner leak hunting method, comprise the steps:
S100: air conditioner is docked with snorkel, and described air conditioner is placed in leak hunting box, close after folding door-plate, enter step S200;
S200: open helium leak detection device, control device control vacuum extractor is evacuated to the atmospheric air of the inside of described leak hunting box after the first default vacuum values by snorkel, enters step S300;
S300: described control device control helium charging unit injects helium by described snorkel to the inside of described leak hunting box, startup flow-disturbing fan blade enters step S400 after the gas uniform of the inside of described leak hunting box is distributed;
S400: described control device control is evacuated to the atmospheric air in described air conditioner after the second default vacuum values by leak detection tube, pressurize is to Preset Time, judge by the parameter of pressure drop whether described air conditioner exists large leakage, if there is not large leakage in described air conditioner, enter step S500, if described air conditioner exists large leakage, enter step S600;
S500: described control device control continues to be evacuated to the 3rd default vacuum values by leak detection tube to described air conditioner, open helium mass spectrometer leak detector, whether the inside of extracting the described air conditioner of detection has helium, to judge whether described air conditioner exists leakage, after having hunted leak, enter step S600;
S600: described control device control retracting device operation, by after the helium recovery of the inside of described leak hunting box, enters step S700 by described snorkel;
S700: open described folding door-plate, described air conditioner is separated with described leak detection tube, detect and finish.
The invention has the beneficial effects as follows:
Air conditioner leak detection system of the present invention and leak hunting method thereof, structural design advantages of simple, air conditioner is placed in leak hunting box, by helium leak detection device, air conditioner is carried out to entirety leak detection, two devices are hunted leak in realization and general assembly is found time, and leak detection becomes one, simplify technological process, reach personnel reduction and enlargement, the object of shortening production cycle, the technological process simultaneously merging can avoid air conditioner in operation turnover because people is that the solder joint that causes splits the defect hidden danger such as leakage, reviewing, pipe be flat, the consistance of improving the quality of products.
Brief description of the drawings
Fig. 1 is the stereographic map of the air conditioner leak detection system of one embodiment of the invention;
Fig. 2 is the front view of the air conditioner leak detection system shown in Fig. 1;
Fig. 3 is the left view of the air conditioner leak detection system shown in Fig. 1;
Fig. 4 is the vertical view of the air conditioner leak detection system shown in Fig. 1;
Fig. 5 is the stereographic map that the air conditioner leak detection system shown in Fig. 1 is provided with air conditioner;
Fig. 6 is the front view that the air conditioner leak detection system shown in Fig. 5 is provided with air conditioner;
Fig. 7 is the left view that the air conditioner leak detection system shown in Fig. 5 is provided with air conditioner;
Fig. 8 is the vertical view that the air conditioner leak detection system shown in Fig. 5 is provided with air conditioner;
Wherein:
100-air conditioner leak detection system;
The 110-negative pressure equipment of finding time;
111-leak hunting box; 112-folding door-plate; 113-flow-disturbing fan blade;
120-helium leak detection device;
130-pipeline;
131-snorkel; 132-leak detection tube;
200-air conditioner.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, by the following examples, and by reference to the accompanying drawings, air conditioner leak detection system of the present invention and leak hunting method thereof are further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1 to Fig. 8, the air conditioner leak detection system 100 of one embodiment, for air conditioner 200 is hunted leak, comprise helium leak detection device 120 and find time negative pressure equipment 110, helium leak detection device 120 is communicated with the negative pressure equipment 110 of finding time by pipeline 130, air conditioner 200 is installed to finds time in negative pressure equipment 110, the negative pressure equipment 110 of finding time comprises leak hunting box 111 and folding door-plate 112, folding door-plate 112 is arranged on leak hunting box 111, helium leak detection device 120 comprises vacuum extractor, helium charging unit, pick-up unit, retracting device and control device, control device respectively with vacuum extractor, helium charging unit, pick-up unit, retracting device connects, control device is controlled respectively vacuum extractor, helium charging unit, pick-up unit, the work of retracting device with stop.In the present embodiment, pick-up unit is helium Mass Spectrometer Method instrument, and vacuum means is set to vacuum pump, and control device is PLC controller.
Whether at present, air conditioner 200 leak detections are that the inside of air conditioner two devices is filled with to helium, and the air conditioner of the helium of substituting the bad for the good two devices are put into helium inspection equipment box, exist helium to judge whether air conditioner two devices exist leakage situation by detecting in helium inspection equipment box.100 of air conditioner leak detection systems of the present invention are that air conditioner 200 is placed in leak hunting box 111, leak hunting box 111 is found time and is filled with helium, again air conditioner 200 is found time, whether exist helium to judge whether air conditioner 200 exists leakage situation by detecting in air conditioner 200.
Leak hunting box 111 forms with folding door-plate 112 box-shaped box sealing, air conditioner 200 is placed on the inside of leak hunting box 111, folding door-plate 112 cuts out, now by the vacuum extractor of control device control helium leak detection device 120, helium charging unit, pick-up unit, retracting device is worked successively, vacuum extractor vacuumizes the inside atmospheric air of leak hunting box 111, the helium charging unit of control device control subsequently fills helium to leak hunting box 111, and whether there is leakage by control device control pick-up unit (helium mass spectrometer leak detector) detection air conditioner 200, after detection completes, control device control retracting device is by the inside helium recovery of leak hunting box 111.The inside of the inside of vacuum extractor to leak hunting box 111 and air conditioner 200 is evacuated to detects needed vacuum values.Helium charging unit is filled with a certain amount of helium to the inside of leak hunting box 111, is convenient to helium mass spectrometer leak detector detection air conditioner 200 and whether has leakage situation.Whether the inside that helium mass spectrometer leak detector extracts detection air conditioner 200 there is helium, to judge whether air conditioner 200 exists leakage situation.Retracting device is by the helium recovery of the inside of leak hunting box 111, and the helium of recovery can be hunted leak for next air conditioner 200, saves production cost.
For the sealing of the negative pressure equipment 110 that ensures to find time, with the position that leak hunting box 111 is connected, sealing gasket is set at folding door-plate 112.
Further, pipeline 130 comprises leak detection tube 132, and one end of leak detection tube 132 is arranged on helium leak detection device 120, and the other end of leak detection tube 132 is arranged on air conditioner 200 through leak hunting box 111.Further, pipeline 130 also comprises snorkel 131, and one end of snorkel 131 is arranged on helium leak detection device 120, and the other end of snorkel 131 is arranged on finds time on negative pressure equipment 110.Leak detection tube 132 is communicated with air conditioner 200 and helium leak detection device 120, whether has leakage situation for detection of the inside of air conditioner 200.Snorkel 131 is three-in-one pipe, and snorkel 131 is communicated with leak hunting box 111 and helium leak detection device 120, for leak hunting box 111 vacuumize, fill helium and leak detection complete after the helium of inside of recovery leak hunting box 111.Air conditioner 200 is placed in leak hunting box 111 after docking with leak detection tube 132, close folding door-plate 112, start helium leak detection device 120, control device control evacuator vacuumizes leak hunting box 111 by snorkel 131, the helium charging unit of control device control subsequently fills helium by snorkel 131 to leak hunting box 111, control device control vacuum extractor vacuumizes the inside of air conditioner 200 by leak detection tube 132, to judge whether air conditioner 200 has large leakage, by helium mass spectrometer leak detector, air conditioner 200 is hunted leak subsequently, after having hunted leak, control device control retracting device reclaims the helium in leak hunting box 111 by snorkel 131.
Air conditioner leak detection system 100 of the present invention is hunted leak two devices of air conditioner 200 and general assembly is found time, and leak detection is integrated together, foreshorten to a technological process, realize two device leak detections and the general assembly of air conditioner 200 are found time to hunt leak by vacuum extractor and helium charging unit, and after having hunted leak by retracting device by helium recovery, reach personnel reduction and enlargement, shorten the production cycle, the object saving production cost, and air conditioner 200 is in process of production only through once leak detection, avoid in air conditioner 200 is being hunted leak operation turnover because people is that the solder joint causing splits leakage, reviewing, manage the defect hidden danger such as flat, the consistance of improving the quality of products.
As a kind of embodiment, helium leak detection device 120 also comprises warning device, and warning device is connected with control device, and air conditioner 200 has been hunted leak, and warning device is reported to the police.Control device is connected with warning device, whether the inside that helium mass spectrometer leak detector extracts detection air conditioner 200 there is helium, and after having detected, warning device sounds, remind the air conditioner 200 of the inside of staff's leak hunting box 111 to hunt leak, can carry out next step operation.If helium mass spectrometer leak detector detects air conditioner 200 and have leakage situation, this air conditioner 200 is unacceptable product; If helium mass spectrometer leak detector detects air conditioner 200 and do not have leakage situation, this air conditioner 200 is certified products.
As a kind of embodiment, vacuumize negative pressure equipment and also comprise flow-disturbing fan blade 113, flow-disturbing fan blade 113 is arranged on the inside of leak hunting box 111.Further, flow-disturbing fan blade 113 is connected with control device, the motion of control device control flow-disturbing fan blade 113 with stop.Control device control flow-disturbing fan blade 113, at the internal motion of leak hunting box 111, makes atmospheric air and helium mix in leak hunting box 111 even by the motion of flow-disturbing fan blade 113, makes the surrounding of air conditioner 200 be covered with helium.Certainly, flow-disturbing fan blade 113 can be installed on leak hunting box 111 by rotating shaft, one end of rotating shaft extends to the outside of leak hunting box 111, move by manual mode control flow-disturbing fan blade 113, by even to the atmospheric air in leak hunting box 111 and helium mix, but adopt the method to ensure the sealing between rotating shaft and leak hunting box 111 by the seal of packing washer.Flow-disturbing fan blade 113 can be shutter, can be also fan balde structure.When flow-disturbing fan blade 113 is shutter, by 113 to-and-fro movements of control device control flow-disturbing fan blade by even to the atmospheric air in leak hunting box 111 and helium mix.When flow-disturbing fan blade 113 is fan blade mechanism, control device control fan 113 rotates even to the atmospheric air in leak hunting box 111 and helium mix.In the present embodiment, flow-disturbing fan blade 113 is shutter.
The air conditioner leak hunting method of one embodiment, comprises the steps:
S100: air conditioner 200 is docked with snorkel 131, and air conditioner 200 is placed in leak hunting box 111, close after folding door-plate 112, enter step S200;
S200: open helium leak detection device 120, control device control vacuum extractor is evacuated to the atmospheric air of the inside of leak hunting box 111 after the first default vacuum values by snorkel 131, enters step S300;
S300: control device control helium charging unit injects helium by snorkel 131 to the inside of leak hunting box 111, startup flow-disturbing fan blade 113 enters step S400 after the gas uniform of the inside of leak hunting box 111 is distributed;
S400: control device control is evacuated to the atmospheric air in air conditioner 200 after the second default vacuum values by leak detection tube 132, pressurize is to Preset Time, judge by the parameter of pressure drop whether air conditioner 200 exists large leakage, if there is not large leakage in air conditioner 200, enter step S500, if air conditioner 200 exists large leakage, enter step S600;
S500: control device control continues to be evacuated to the 3rd default vacuum values by leak detection tube 132 to air conditioner 200, open helium mass spectrometer leak detector, whether the inside of extracting detection air conditioner 200 has helium, to judge whether air conditioner 200 exists leakage, after having hunted leak, enter step S600;
S600: the operation of control device control retracting device, by after the inside helium recovery of leak hunting box 111, enters step S700 by snorkel 131;
S700: open folding door-plate 112, air conditioner 200 is separated with leak detection tube 132, detect and finish.
Step S100 is preparation process, after air conditioner 200 and leak detection tube 132 are docked and be placed in leak hunting box 111, closes folding door-plate 112, step S200 to S600 is detecting step, open helium leak detection device 120, control device control vacuum extractor by snorkel 131 just the atmospheric air of the inside of leak hunting box 111 be evacuated to the first default vacuum values, then control device control helium charging unit injects helium by snorkel 131 to the inside of leak hunting box 111, start flow-disturbing fan blade 113 by even the Gas Stirring of the inside of leak hunting box 111, make the surrounding of air conditioner 200 all be covered with helium, control device control is subsequently evacuated to the atmospheric air in air conditioner 200 after the second default vacuum values by leak detection tube 132, pressurize is to Preset Time, judge by the parameter of pressure drop whether air conditioner 200 exists large leakage, if having large leakage has hunted leak, if there is not large leakage in air conditioner 200, control device control continues to be evacuated to the 3rd default vacuum values by leak detection tube 132 to air conditioner 200, open helium mass spectrometer leak detector, whether the inside of extracting detection air conditioner 200 has helium, to judge whether air conditioner 200 exists leakage, after having hunted leak, the operation of control device control retracting device, by snorkel 131 by the inside helium recovery of leak hunting box 111, step S700 is end step, opens folding door-plate 112, and air conditioner 200 is separated with leak detection tube 132, can hunt leak to next air conditioner 200.In the present embodiment, the first default vacuum values is 15Pa, and the second default vacuum values is 30Pa, and the 3rd default vacuum values is 50Pa.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore 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, can also make some distortion and improvement, these all belong to 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. an air conditioner leak detection system, comprises helium leak detection device, it is characterized in that, also comprises the negative pressure equipment of finding time, described helium leak detection device by pipeline with described in the negative pressure equipment of finding time be communicated with, described in air conditioner is placed on, find time in negative pressure equipment;
The described negative pressure equipment of finding time comprises leak hunting box and folding door-plate, and described folding door-plate is arranged on described leak hunting box;
Described pipeline comprises leak detection tube and snorkel, one end of described leak detection tube is arranged on described helium leak detection device, the other end of described leak detection tube is arranged on described air conditioner through described leak hunting box, one end of described snorkel is arranged on described helium leak detection device, and the other end of described snorkel is arranged on described leak hunting box.
2. air conditioner leak detection system according to claim 1, it is characterized in that, described helium leak detection device comprises vacuum extractor, helium charging unit, pick-up unit, retracting device and control device, described control device is connected with described vacuum extractor, described pick-up unit, described helium charging unit, described retracting device respectively, and described control device is controlled respectively the work of described vacuum extractor, described helium charging unit, described pick-up unit, described retracting device and stopped.
3. air conditioner leak detection system according to claim 2, is characterized in that, described helium leak detection device also comprises warning device, and described warning device is connected with described control device, and described air conditioner has been hunted leak, and described warning device is reported to the police.
4. air conditioner leak detection system according to claim 2, is characterized in that, described pick-up unit is helium Mass Spectrometer Method instrument.
5. air conditioner leak detection system according to claim 2, is characterized in that, described in vacuumize negative pressure equipment and also comprise flow-disturbing fan blade, described flow-disturbing fan blade is arranged on the inside of described leak hunting box.
6. air conditioner leak detection system according to claim 5, is characterized in that, described flow-disturbing fan blade is connected with described control device, described in described control device control the motion of flow-disturbing fan blade with stop.
7. according to the air conditioner leak detection system described in claim 2 to 6 any one, it is characterized in that, described control device is PLC controller.
8. an air conditioner leak hunting method, is characterized in that, comprises the steps:
S100: air conditioner is docked with snorkel, and described air conditioner is placed in leak hunting box, close after folding door-plate, enter step S200;
S200: open helium leak detection device, control device control vacuum extractor is evacuated to the atmospheric air of the inside of described leak hunting box after the first default vacuum values by snorkel, enters step S300;
S300: described control device control helium charging unit injects helium by described snorkel to the inside of described leak hunting box, startup flow-disturbing fan blade enters step S400 after the gas uniform of the inside of described leak hunting box is distributed;
S400: described control device control is evacuated to the atmospheric air in described air conditioner after the second default vacuum values by leak detection tube, pressurize is to Preset Time, judge by the parameter of pressure drop whether described air conditioner exists large leakage, if there is not large leakage in described air conditioner, enter step S500, if described air conditioner exists large leakage, enter step S600;
S500: described control device control continues to be evacuated to the 3rd default vacuum values by leak detection tube to described air conditioner, open helium mass spectrometer leak detector, whether the inside of extracting the described air conditioner of detection has helium, to judge whether described air conditioner exists leakage, after having hunted leak, enter step S600;
S600: described control device control retracting device operation, by after the helium recovery of the inside of described leak hunting box, enters step S700 by described snorkel;
S700: open described folding door-plate, described air conditioner is separated with described leak detection tube, detect and finish.
CN201410281104.4A 2014-06-20 2014-06-20 Air conditioner leakage detecting system and leakage detecting method thereof Pending CN104062083A (en)

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CN202329960U (en) * 2011-11-14 2012-07-11 中国电子科技集团公司第十八研究所 Leak detecting device for lithium-ion batteries
CN202631197U (en) * 2012-04-20 2012-12-26 上海夏普电器有限公司 Air conditioner outdoor unit helium-filled vacuum leak detection system
CN103792047A (en) * 2012-10-31 2014-05-14 美的集团股份有限公司 High-precision gas leakage detection device and method
CN103175662A (en) * 2013-03-20 2013-06-26 厦门松芝汽车空调有限公司 Leak detecting method in production of large and medium-sized automobile air conditioner
CN203643102U (en) * 2013-12-05 2014-06-11 珠海格力电器股份有限公司 Leak hunting frock case
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CN107782503A (en) * 2016-08-26 2018-03-09 珠海格力电器股份有限公司 Leakage detection device for pipeline system of air conditioner
CN106404312A (en) * 2016-10-11 2017-02-15 华霆(合肥)动力技术有限公司 Gas leak detection device and method
CN106885656A (en) * 2017-03-04 2017-06-23 广州灵帕机电科技有限公司 A kind of cover plate of power battery helium leak test system
CN106885656B (en) * 2017-03-04 2020-04-17 广州灵帕机电科技有限公司 Helium leakage detection system for power battery cover plate
CN107024324A (en) * 2017-05-26 2017-08-08 廊坊润能燃气设备有限公司 The diaphragm gas meter dry check system of complete machine sealing helium and method
CN107024324B (en) * 2017-05-26 2024-02-13 廊坊润能燃气设备有限公司 Helium dry detection system and method for complete machine tightness of diaphragm gas meter
CN108398214A (en) * 2018-01-31 2018-08-14 宁波保税区瑞丰模具科技有限公司 A kind of leakage detection apparatus containing compressor apparatus
CN109029854A (en) * 2018-07-06 2018-12-18 芜湖奕辰模具科技有限公司 A kind of laser cutting air-leakage test cabin
CN109000860A (en) * 2018-08-28 2018-12-14 珠海格力电器股份有限公司 Water system leakage detection device and method
CN109357819A (en) * 2018-12-19 2019-02-19 国联汽车动力电池研究院有限责任公司 It is a kind of for detecting the device and method of battery system box sealing performance
CN110095237A (en) * 2019-05-24 2019-08-06 百尔制冷(无锡)有限公司 A kind of leak hunting method of refrigeration system
CN110261044A (en) * 2019-06-29 2019-09-20 广东利元亨智能装备股份有限公司 Air tightness detection device
CN114653616A (en) * 2020-12-22 2022-06-24 安徽力翔电池科技有限公司 High-precision self-suction type flow-dividing helium detection intelligent sorting system
CN113023077A (en) * 2021-03-02 2021-06-25 安徽博为光电科技有限公司 Work piece turnover vehicle for vacuum helium leak detection
CN113023077B (en) * 2021-03-02 2023-09-22 安徽博为光电科技有限公司 Workpiece turnover vehicle for vacuum helium leak detection
CN113390564A (en) * 2021-05-27 2021-09-14 珠海格力智能装备有限公司 Refrigerant leakage detection equipment and method

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