CN1415946A - Leakage detection method for whole machine pipeline system - Google Patents
Leakage detection method for whole machine pipeline system Download PDFInfo
- Publication number
- CN1415946A CN1415946A CN 02142330 CN02142330A CN1415946A CN 1415946 A CN1415946 A CN 1415946A CN 02142330 CN02142330 CN 02142330 CN 02142330 A CN02142330 A CN 02142330A CN 1415946 A CN1415946 A CN 1415946A
- Authority
- CN
- China
- Prior art keywords
- sealing bag
- complete machine
- pipe system
- pipeline system
- leakage detection
- Prior art date
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 38
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- 230000000740 bleeding effect Effects 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000000523 sample Substances 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 2
- 239000004088 foaming agent Substances 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 3
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000004792 oxidative damage Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a leak detection method of a whole machine pipeline system, which comprises the following steps: firstly, carrying out interface initial detection on a whole machine pipeline system by using nitrogen and a foaming agent, and then vacuumizing and carrying out vacuum leak detection on the whole machine pipeline system; then, filling gas or liquefied gas with a certain pressure into the whole pipeline system, and then fully sealing or semi-sealing the pipeline system by using a sealing bag, wherein the sealing bag is provided with a small hole and an air extraction opening which can be opened and closed, and extracting air by using an air extractor through the air extraction opening; and finally, placing the whole pipeline system and the sealing bag for a period of time, extending a detector probe into a space between the whole pipeline system and the sealing bag through a small hole on the sealing bag for detection, and completing leak detection on an assembly line. The leakage detection method realizes leakage detection of the whole machine, perfectly ensures the product quality, is convenient to operate, accurate in leakage detection, low in equipment investment and low in running cost, and can save the leakage detection process of parts. Therefore, the leakage detection device is particularly suitable for being used in the leakage detection of the whole machine after the whole pipeline system or the whole closed system of the air conditioner is assembled.
Description
The present invention relates to a kind of leak hunting method of container, particularly a kind of to leakage detection of entire set pipe system such as air conditioner complete machine, medium-sized closed conduit and irregular airtight containers.
At present, have only leak hunting method in the prior art to parts, if any the inspection of vacuum helium, water inspection and high-low pressure inspection etc., but not to leakage detection of entire set pipe system, as to air conditioner complete machine pipe system or whole airtight system after assembling, the method for its complete machine not being hunted leak also.
The purpose of this invention is to provide a kind of method that air conditioner complete machine pipe system or whole airtight system are hunted leak to its complete machine after assembling.
Purpose of the present invention can be achieved as follows: this leakage detection of entire set pipe system comprises following processing step: at first, to needs leak detections and assembled the nitrogen that charges into certain pressure in the complete machine pipe system that finishes, and each interface is smeared initial survey with gas-development agent, bleed off nitrogen afterwards; Then, the complete machine pipe system is vacuumized, carry out vacuum leak hunting simultaneously in passing with vacuum pump; Follow again, the complete machine pipe system is charged into gas or the liquefied gas that the be detected device of certain pressure detects; Follow again, described complete machine pipe system is carried out hermetically sealed or semitight, but wherein sealing bag is provided with the aperture and the bleeding point of opening and closing with sealing bag; Then, bleed at the bleeding point of sealing bag, to reduce the air between complete machine pipe system and the sealing bag with air pump; At last, complete machine pipe system and sealing bag placed a period of time after, the aperture of detecting head on sealing bag of detector put in the space that forms between complete machine pipe system and the sealing bag detect, whole leak detection process is finished on streamline.
The present invention hunts leak to the complete machine pipe system by the cooperation that utilizes sealing bag and detector probe, has realized complete machine is hunted leak, and guarantees product quality perfectly.Simultaneously, this leak hunting method can carry out the leak detection of complete machine pipe system in conjunction with original production technology, makes whole leak detection process can be used as a procedure in the pipelining, easy to operate, leak detection is accurate, and equipment investment is few, operating cost is low, also can save parts leak detection operation.Therefore, be particularly suitable in the leak detection of the whole pipe system of air conditioner or whole closed system complete machine after assembling, using
The present invention is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is complete machine pipe system of the present invention structural representation when sealing with sealing bag.
In Fig. 1, the complete machine pipe system that hunt leak is an air conditioner complete machine 1.At first, to needs leak detections and assembled the nitrogen that charges into certain pressure in the air conditioner complete machine 1 that finishes, and each interface is smeared initial survey with gas-development agent, bleed off nitrogen behind the initial survey, because nitrogen does not have oxidation and low price, certainly also can adopt other gases, only otherwise can all can of oxidative damage be arranged to air conditioner complete machine 1.Then, air conditioner complete machine 1 is vacuumized, carry out vacuum leak hunting simultaneously in passing with vacuum pump.Follow again, air conditioner complete machine 1 is charged into the liquefaction shape R22 that the be detected device of certain mass detects, gas that wherein charges into or liquid gas should guarantee to be detected device and detect and to obtain, as select for use: gases such as R12, R22, R134a, R407C, R410A, helium, or the mixed gas of these gases also can, when directly charge into be gas the time, this gas need have certain pressure, is generally 0.8-2.0MPa.Follow again, be enclosed within outside the air conditioner complete machine 1 with sealing bag 2, be that sealing bag 2 seals up the major part of air conditioner complete machine 1, be the semitight shape, make that the space between sealing bag 2 and the air conditioner complete machine 1 is a confined space, because structure limits, otherwise available enough big sealing bag 2 all seals up air conditioner complete machine 1, promptly is hermetically sealed shape.Wherein sealing bag 2 is to make the sack shape with impermeability good soft thin-walled material such as plastics, nylon film etc., sack can be set up bungee or elastic cord, use during sealing, but sealing bag 2 is provided with the detecting head turnover of the aperture of opening and closing for detector simultaneously, in addition, but also be provided with the also bleeding point of opening and closing on the sealing bag 2.Then, the air conditioner complete machine 1 and the sealing bag 2 of good seal is placed on the streamline 4 by frock plate 3, bleeds at the bleeding point of sealing bag 2 with air pump such as suction cleaner etc. again, to reduce the air between air conditioner complete machine 1 and the sealing bag.At last, air conditioner complete machine 1 and sealing bag 2 are after operation a period of time on the streamline 4, approximately 3-15 minute, promptly just be on the streamline together or the time of two procedures, the aperture of detecting head on sealing bag 2 with the halogen detector puts in the confined space that forms between sealing bag 2 and the air conditioner complete machine 1 again, survey the R22 gas that its interior air has or not trace, just can finish the technological process of leak detection.Whole leak detection process just can be finished on streamline.The precision of the leak detection of this method depends on the precision and the sensitivity of the detecting head of detector, when needs detect little leakage, selects for use precision and highly sensitive detecting head to get final product.
The same substantially with the leak detection step of above-mentioned air conditioner complete machine 1 for medium-sized closed conduit with the leak detection processing step of complete machine pipe systems such as irregular airtight container.
Claims (1)
1, a kind of leakage detection of entire set pipe system, it is characterized in that: described leakage detection of entire set pipe system comprises following processing step: at first, to needs leak detections and assembled the nitrogen that charges into certain pressure in the complete machine pipe system that finishes, and each interface is smeared initial survey with gas-development agent, bleed off nitrogen afterwards; Then, the complete machine pipe system is vacuumized, carry out vacuum leak hunting simultaneously in passing with vacuum pump; Follow again, the complete machine pipe system is charged into gas or the liquefied gas that the be detected device of certain pressure detects; Follow again, described complete machine pipe system is carried out hermetically sealed or semitight, but wherein sealing bag is provided with the aperture and the bleeding point of opening and closing with sealing bag; Then, bleed at the bleeding point of sealing bag, to reduce the air between complete machine pipe system and the sealing bag with air pump; At last, after complete machine pipe system and sealing bag placed a period of time, the aperture of detecting head on sealing bag of detector put in the space that forms between complete machine pipe system and the sealing bag detect, the leak detection process of complete machine pipe system is finished on streamline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02142330 CN1415946A (en) | 2002-09-11 | 2002-09-11 | Leakage detection method for whole machine pipeline system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02142330 CN1415946A (en) | 2002-09-11 | 2002-09-11 | Leakage detection method for whole machine pipeline system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1415946A true CN1415946A (en) | 2003-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02142330 Pending CN1415946A (en) | 2002-09-11 | 2002-09-11 | Leakage detection method for whole machine pipeline system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1415946A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464171C (en) * | 2005-10-31 | 2009-02-25 | 林俊明 | Method of non-destructive testing compactness of pipeline online |
| CN102455243A (en) * | 2010-10-22 | 2012-05-16 | 珠海格力电器股份有限公司 | Air conditioning system leakage detection method |
| 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 |
| 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 |
| 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 |
-
2002
- 2002-09-11 CN CN 02142330 patent/CN1415946A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464171C (en) * | 2005-10-31 | 2009-02-25 | 林俊明 | Method of non-destructive testing compactness of pipeline online |
| CN102455243A (en) * | 2010-10-22 | 2012-05-16 | 珠海格力电器股份有限公司 | Air conditioning system leakage detection method |
| CN102455243B (en) * | 2010-10-22 | 2013-12-25 | 珠海格力电器股份有限公司 | Air conditioning system leakage detection method |
| 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 |
| CN107782503B (en) * | 2016-08-26 | 2019-02-19 | 珠海格力电器股份有限公司 | Leakage detection device for pipeline system of air conditioner |
| 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 |
| 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 |
| CN109000860B (en) * | 2018-08-28 | 2020-01-03 | 珠海格力电器股份有限公司 | Water system leakage detection device and method |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |