CN105043674B - A kind of liquid storage dryer air-tightness detection method - Google Patents
A kind of liquid storage dryer air-tightness detection method Download PDFInfo
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- CN105043674B CN105043674B CN201510570405.3A CN201510570405A CN105043674B CN 105043674 B CN105043674 B CN 105043674B CN 201510570405 A CN201510570405 A CN 201510570405A CN 105043674 B CN105043674 B CN 105043674B
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- 239000007788 liquid Substances 0.000 title claims abstract description 37
- 238000001514 detection method Methods 0.000 title claims abstract description 26
- 238000012360 testing method Methods 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000007423 decrease Effects 0.000 claims abstract description 5
- 239000000047 product Substances 0.000 claims description 32
- 239000006227 byproduct Substances 0.000 claims description 2
- 235000013569 fruit product Nutrition 0.000 claims description 2
- 238000010998 test method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 12
- 238000004378 air conditioning Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Abstract
The invention discloses a kind of liquid storage dryer air-tightness detection method, include the following steps: that liquid storage dryer to be tested is clipped in the fixture of leakage tester by a；B is leapt high pressure to product by starting switch, and the decline of leakage tester cylinder, if liquid storage dryer to be tested has big leakage situation, stops test, product is unqualified to first carry out big leak detection in trial product encroached water immediately；If liquid storage dryer c to be tested does not find to leak situation greatly, continue to rush low pressure to product, to carry out slow leak detection in trial product encroached water, it such as finds to there is bubble to show by acknowledgement key in water unqualified, if product is qualified, releasing pressure automatically within the set time without discovery bubble；D leakage tester cylinder gos up, takes out the liquid storage dryer that test is completed after leakage tester system automatic homing, into next test loop.Test method of the present invention is simple, low in cost, and the testing time is short, high-efficient, and test accuracy rate is up to 100%.
Description
Technical field
The present invention relates to leak test detection method, in particular to a kind of leak test detection side of liquid storage dryer used for automobile air conditioning
Method.
Background technique
Liquid storage dryer is very important component in air-conditioning, although often being ignored by people.There is no the vapour of liquid storage dryer
Vehicle air-conditioning system be it is lopsided, pressure can not be stablized, and the ability of condenser cannot give full play to, and evaporator expansion valve cannot be stablized
Work.This respect needs professional knowledge that could understand.Briefly, liquid storage dryer is equivalent to " liver " removing toxic substances, the storage of human body
Blood.1. liquid storage dryer structure determines that outlet is liquid refrigerant, expansion valve throttling can be made to stablize, reduce system high pressure.
There is desiccant-molecular sieve inside 2., absorbs refrigerant and system internal residual moisture.
Existing leak testing process is all the airtight leak testing process of dry type, is mainly used in automobile, internal combustion engine, motorcycle, compression
The industries such as machine；It is to detect its components leak condition, guarantees the important method of product quality.Detection leak testing process in the market,
After measured workpiece blocks, using cleaning, dry air dielectric is inflated measured workpiece inner cavity by leak hunting instrument, puts down
Weighing apparatus, pressure of satisfying, measures, exhaust；And show slip size after measurement, but the hardware configuration that this test method is relied on is multiple
It is miscellaneous, higher cost, and be not 100% safety.The air-tightness detection method of liquid storage dryer especially used for automobile air conditioning
Cost is excessively high, nor 100% safety.
Summary of the invention
Detection method present in the present invention mainly solution prior art is at high cost, is not that the technology of 100% safety is asked
Topic proposes a kind of new liquid storage dryer air-tightness detection method
A kind of liquid storage dryer air-tightness detection method, includes the following steps:
Liquid storage dryer to be tested is clipped in the fixture of leakage tester by a；
B is leapt high pressure to product by starting switch, leakage tester cylinder decline, to first carry out big missing inspection in trial product encroached water
It surveys, if liquid storage dryer to be tested has big leakage situation, stops test immediately, product is unqualified；
If liquid storage dryer c to be tested does not find to leak situation greatly, continue to rush low pressure to product, be invaded to trial product
Slow leak detection is carried out in water, it is as unqualified in thering is bubble to show by acknowledgement key in discovery water, if do not had within the set time
It is found bubble, then product is qualified, releasing pressure automatically；
D leakage tester cylinder gos up, takes out the liquid storage dryer that test is completed after leakage tester system automatic homing, and entrance is next
A test loop.
Test method of the present invention is simple, low in cost, and the testing time is short, high-efficient, and test accuracy rate is up to 100%.Greatly
Leakage can stop testing immediately, take out test product in water, and security risk is eliminated.
Specific embodiment
It is described in detail below with reference to the preferred embodiment of the present invention, so that advantages and features of the invention can be easier to
In being readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Detecting instrument used in the method for the present invention, including fixed frame, set that there are two motor support frame, each horses on fixed frame
It is equipped with motor up to support frame, motor support frame is equipped with sliding block, sets that there are two the identical rotating wheel of shape size, motors on sliding block
It is connect with rotating wheel, motor is connect with rotating wheel by belt；Motor support frame is equipped with cylinder, and cylinder is connect with motor；Rotation
The external of wheel is equipped with fixture towards face；The lower part of sliding block is equipped with backstop plate, and the lower section of rotating wheel is arranged in backstop plate.
Cylinder can provide power to motor, and motor can rotate rotating wheel by belt；Rotating wheel can be controlled
Sliding block processed is moved, and sliding block can control backstop plate and be moved；It can be by product clip to be tested above backstop plate
In fixture, product is controlled more flexiblely to facilitate；The leak test machine clamp is mounted on to the top of sink, under cylinder
Drop is sunk in sink so as to control product, and motor drives rotating wheel to rotate together with product, and user can estimate product
Any position in surface leak case, reach the time of setting, rotating wheel stops operating, such as fruit product pressure release, cylinder then band
It moves entire product to rise, then takes out the product tested, while the movement for carrying out next circulation is tested, detection efficiency
It greatly improves.
A kind of liquid storage dryer air-tightness detection method, which comprises the steps of:
Liquid storage dryer to be tested is clipped in the fixture of leakage tester by a；
B is leapt high pressure to product by starting switch, leakage tester cylinder decline, to first carry out big missing inspection in trial product encroached water
It surveys, if liquid storage dryer to be tested has big leakage situation, stops test immediately, product is unqualified；
If liquid storage dryer c to be tested does not find to leak situation greatly, continue to rush low pressure to product, be invaded to trial product
Slow leak detection is carried out in water, it is as unqualified in thering is bubble to show by acknowledgement key in discovery water, if do not had within the set time
It is found bubble, then product is qualified, releasing pressure automatically；
D leakage tester cylinder gos up, takes out the liquid storage dryer that test is completed after leakage tester system automatic homing, and entrance is next
A test loop.
A kind of above-mentioned liquid storage dryer air-tightness detection method, system parameter may be configured as, high pressure admission pressure:
0.20MPa-3.50MPa, low-pressure admission pressure: 0.00MPa-1.50MPa tests the big leakage time: 0.00S, when testing slow leakage
Between: 30-40S, greatly leakage pressure difference: 0.00MPa is vented lower limit: 0.30MPa.Liquid storage dryer air-tightness detection method can be transported automatically
The test of row mode, can also manually receive operation.
The serial air-leakage test embodiment of sample 1
Sample 1 is several model SK64220 series liquid storage dryers
The series liquid storage dryer is cooperated by spring and iron plate come fixing process mechanism, and spring can be according to molecular sieve
Volume change adjust its internal degree of packing, ensure its strainability, improve strainability, enhancing soaking effect uses the longevity
Life length.
Detection method is same as above, and parameter is set as high pressure admission pressure: 0.30MPa-3.00MPa, low-pressure admission pressure:
0.00MPa-1.0MPa tests the big leakage time: 0.00S, tests the slow leakage time: 35S, greatly leakage pressure difference: 0.00MPa, under exhaust
Limit: 0.30MPa.
It detects by the method for the invention, accuracy rate 100%, detects safety coefficient 100%.
2 air-leakage test embodiment of sample
Sample 2 is several model SK64083 series liquid storage dryers, tank body internal diameter 60mm, tank body height 200mm, input
Hold age of a draught animal screw thread specification 18*1.5, output end age of a draught animal screw thread specification 18*1.5
Detection method is same as above, and parameter is set as high pressure admission pressure: 0.50MPa-3.50MPa, low-pressure admission pressure:
0.00MPa-1.5MPa tests the big leakage time: 0.00S, tests the slow leakage time: 30S, greatly leakage pressure difference: 0.00MPa, under exhaust
Limit: 0.30MPa
It detects by the method for the invention, accuracy rate 100%, detects safety coefficient 100%.
The serial air-leakage test embodiment of sample 3
Sample 3 is several model SK64117 series liquid storage dryers, tank body internal diameter 76mm, tank body height 255mm
Detection method is same as above, and parameter is set as high pressure admission pressure: 0.20MPa-2.5MPa, low-pressure admission pressure:
0.00MPa-1.0MPa tests the big leakage time: 0.00S, tests the slow leakage time: 40S, greatly leakage pressure difference: 0.00MPa, under exhaust
Limit: 0.30MPa
It detects by the method for the invention, accuracy rate 100%, detects safety coefficient 100%.
The serial air-leakage test embodiment of sample 4
Sample 4 is several model SK64083 series liquid storage dryers
Detection method is same as above, and parameter is set as high pressure admission pressure: 0.25MPa-2.9MPa, low-pressure admission pressure:
0.00MPa-1.0MPa tests the big leakage time: 0.00S, tests the slow leakage time: 40S, greatly leakage pressure difference: 0.00MPa, under exhaust
Limit: 0.30MPa
It detects by the method for the invention, accuracy rate 100%, detects safety coefficient 100%.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention.Therefore, of the invention
Protection scope should be determined by the scope of protection defined in the claims.
Claims (1)
1. a kind of liquid storage dryer air-tightness detection method, which comprises the steps of:
Liquid storage dryer to be tested is clipped in the fixture of leakage tester by a；
B is leapt high pressure to product by starting switch, the decline of leakage tester cylinder, to first carry out big leak detection in trial product encroached water,
If to
There is big leakage situation in the liquid storage dryer of test, then stop test immediately, product is unqualified；High pressure admission pressure
3.00MPa tests big leakage time 0.00S, big to leak pressure difference 0.00MPa, is vented lower limit 0.30MPa；
If liquid storage dryer c to be tested does not find to leak situation greatly, continue to rush low pressure to product, in trial product encroached water
Slow leak detection is carried out, it is as unqualified in thering is bubble to show by acknowledgement key in discovery water, if do not sent out within the set time
Existing bubble, then product is qualified, releasing pressure automatically；Low-pressure admission power 0.0MPa tests the slow leakage time: 35S,
D leakage tester cylinder gos up, takes out the liquid storage dryer that test is completed after leakage tester system automatic homing, into next survey
Examination circulation, takes automatic running pattern to test；
The detecting instrument of the detection method includes fixed frame, is set on fixed frame there are two motor support frame, each motor branch
Support is equipped with motor, and motor support frame is equipped with sliding block, sets that there are two the identical rotating wheel of shape size, motor and rotations on sliding block
Runner connection, motor are connect with rotating wheel by belt；Motor support frame is equipped with cylinder, and cylinder is connect with motor；Pair of runner
It is outer to be equipped with fixture towards face；The lower part of sliding block is equipped with backstop plate, and the lower section of rotating wheel is arranged in backstop plate；Cylinder is provided to motor
Power, motor rotate rotating wheel by belt；Runner control sliding block is moved, and sliding block control backstop plate is moved
It is dynamic；By product clip to be tested in the fixture above backstop plate, product is controlled more flexiblely to facilitate；The examination
Leakage machine clamp is mounted on the top of sink, and cylinder decline is sunk in sink so as to control product, motor drive rotating wheel with
Product rotates together, and user estimates the leak case at any position in surface of product, reaches the time of setting, rotating wheel stops
Rotation, such as fruit product pressure release, cylinder then drives entire product to rise, then takes out the product tested, while carrying out next
The movement of circulation is tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510570405.3A CN105043674B (en) | 2015-09-09 | 2015-09-09 | A kind of liquid storage dryer air-tightness detection method |
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| CN201510570405.3A CN105043674B (en) | 2015-09-09 | 2015-09-09 | A kind of liquid storage dryer air-tightness detection method |
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| Publication Number | Publication Date |
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| CN105043674A CN105043674A (en) | 2015-11-11 |
| CN105043674B true CN105043674B (en) | 2018-12-14 |
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| CN201510570405.3A Active CN105043674B (en) | 2015-09-09 | 2015-09-09 | A kind of liquid storage dryer air-tightness detection method |
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Families Citing this family (1)
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| CN105371540A (en) * | 2015-11-24 | 2016-03-02 | 芜湖豫新世通汽车空调有限公司 | Installation method for receiver-drier assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1254092A (en) * | 1999-10-23 | 2000-05-24 | 哈尔滨铁路局工业总公司科学技术研究所 | Safety attachment detection system of liquefied gas transportation tank car |
| US20030007543A1 (en) * | 2001-06-14 | 2003-01-09 | 3M Innovative Properties Company | Use of fluorinated ketones as test fluids in the testing of electronic components |
| CN103900774B (en) * | 2014-04-04 | 2016-05-18 | 浙江银轮机械股份有限公司 | Oil cooler is dry, sealing test method and equipment thereof are closed in wet mixing |
| CN204495517U (en) * | 2015-03-13 | 2015-07-22 | 浙江理工大学 | A kind of air-tightness detection device |
| CN104833459B (en) * | 2015-05-11 | 2016-03-23 | 广东骏驰科技股份有限公司 | A kind of automobile pipe fitting impermeability leakage detection apparatus and leak hunting method thereof |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Receiver-drier air tightness test method Effective date of registration: 20190712 Granted publication date: 20181214 Pledgee: Longquan Branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG SHIKE AUTOPARTS Co.,Ltd. Registration number: 2019330000194 |
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Date of cancellation: 20211223 Granted publication date: 20181214 Pledgee: Longquan Branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG SHIKE AUTOPARTS Co.,Ltd. Registration number: 2019330000194 |
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Denomination of invention: A method for detecting air tightness of liquid storage dryer Effective date of registration: 20211230 Granted publication date: 20181214 Pledgee: Longquan Branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG SHIKE AUTOPARTS Co.,Ltd. Registration number: Y2021330002753 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20181214 Pledgee: Longquan Branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG SHIKE AUTOPARTS Co.,Ltd. Registration number: Y2021330002753 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A method for testing the airtightness of liquid storage dryers Granted publication date: 20181214 Pledgee: Longquan Branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG SHIKE AUTOPARTS Co.,Ltd. Registration number: Y2024980007474 |