CN203798515U - Equipment for testing sealing of oil cooler by using mixing of helium and air - Google Patents

Equipment for testing sealing of oil cooler by using mixing of helium and air Download PDF

Info

Publication number
CN203798515U
CN203798515U CN201420164214.8U CN201420164214U CN203798515U CN 203798515 U CN203798515 U CN 203798515U CN 201420164214 U CN201420164214 U CN 201420164214U CN 203798515 U CN203798515 U CN 203798515U
Authority
CN
China
Prior art keywords
helium
vacuum tank
oil cooler
pipeline
solenoid valve
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.)
Active
Application number
CN201420164214.8U
Other languages
Chinese (zh)
Inventor
麦小波
陈吉洋
许永波
许光威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Yinlun Machinery Co Ltd
Original Assignee
Zhejiang Yinlun Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Yinlun Machinery Co Ltd filed Critical Zhejiang Yinlun Machinery Co Ltd
Priority to CN201420164214.8U priority Critical patent/CN203798515U/en
Application granted granted Critical
Publication of CN203798515U publication Critical patent/CN203798515U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility mode, which belongs to the technical field of the sealing testing equipment, especially relates to a piece of equipment for testing sealing of an oil cooler by using mixing of helium and air. The equipment comprises a vacuum chamber and a gas mixing and temporary storage device that is connected with the oil cooler by a mixed gas conveying tube with an electromagnetic valve. The gas mixing and temporary storage device is connected with a helium source and an air source by tubes with electromagnetic valves; a helium sensor is arranged at the gas mixing and temporary storage device; and flowmeters and pressure sensors are arranged at the tubes. The vacuum chamber is vacuumized by a vacuum pump; an oil cooler pressure-relief tube is arranged at a mixed gas conveying tube; a helium leakage detector and an electromagnetic valve are arranged at the tube between vacuum pump and the vacuum chamber; and a vacuum box pressure-relief tube for pressure releasing of the vacuum chamber is connected to the vacuum chamber. The provided equipment has characteristics of low equipment cost and using cost, high product efficiency, high accuracy, and high reliability.

Description

Utilize the equipment of helium and air hybrid test oil cooler sealing
Technical field
The utility model belongs to leak tightness testing equipment technical field, refers in particular to a kind of equipment that utilizes helium and air hybrid test oil cooler sealing.
Background technology
Sealing is the key characteristic of oil cooler, and performing leak test is one of critical process of oil cooler production.The performing leak test of oil cooler can be used pressurized air-water examination leak detection, the dry examination of pressurized air leak detection, helium leak check etc.Pressurized air-water examination leak detection is the pressurized air that is filled with certain pressure in oil cooler, and whole product is immersed in the water, and observes emerging of bubble and determines whether to leak, and shortcoming is manually likely to occur erroneous judgement, and follow-up needs dries.The dry examination leak detection of pressurized air is to be filled with pressurized air in oil cooler inside, then adopt the variation of sensor sensing pressure to judge whether product leaks, can realize automation mechanized operation, shortcoming is the reason of expanding with heat and contract with cold due to gas, pressure temperature influence is very large, the temperature environment that also easily appearance erroneous judgement or needs are good and for a long time steady pressure.Helium leak check instrument is oil cooler inside to be filled with to the helium of certain pressure, and oil cooler is positioned in vacuum tank, by the helium gas molecules number change detecting in vacuum tank, judge whether product leaks, shortcoming is that helium expense is very high, in the situation that having helium recovery system, the consumption of helium or too high, not only equipment cost is high, and use cost is also very high.
Summary of the invention
The purpose of this utility model is to provide a kind of helium use amount of saving and reduces costs, detects the equipment that utilizes helium and air hybrid test oil cooler sealing that effect accuracy is high.
The utility model is achieved in that
Utilize the equipment of helium and air hybrid test oil cooler sealing, include for placing the vacuum tank of oil cooler, the gas being connected by mixed gas delivery pipeline with oil cooler mixes and temporary storage, gas mixes and temporary storage is connected with helium source of the gas by helium transfer pipeline, compressed air line is connected with compressed air gas source, on gas mixing and temporary storage, be provided with concentrations of helium sensor, on helium transfer pipeline, on compressed air conveying pipeline, be provided with flow and take into account pressure transducer, vacuum tank is vacuumized by vacuum pump, on described mixed gas delivery pipeline, on helium transfer pipeline, on compressed air conveying pipeline, be provided with solenoid valve, on mixed gas delivery pipeline, be provided with oil cooler pressure relief pipe, on the pipeline between vacuum pump and vacuum tank, be provided with helium leak check instrument, and on pipeline, be provided with the solenoid valve of controlling vacuum tank and helium leak check instrument UNICOM or partition, on vacuum tank, be connected with the vacuum tank pressure relief pipe that vacuum tank is carried out to pressure release, flowmeter, pressure transducer, helium leak check instrument and concentrations of helium sensor are connected with control system, described solenoid valve is by control system control action.
Above-mentioned oil cooler pressure relief pipe, vacuum tank pressure relief pipe are on pipeline, to be provided with solenoid valve, and solenoid valve is connected with control system.
Above-mentioned oil cooler pressure relief pipe is arranged on mixed gas delivery pipeline between oil cooler and solenoid valve.
On above-mentioned vacuum pump and the pipeline between vacuum tank, being provided with helium leak check instrument is: the bye-pass that is provided with UNICOM's vacuum tank on the pipeline between vacuum pump and vacuum tank, on bye-pass, be provided with helium leak check instrument, the solenoid valve of controlling helium leak check Yi Yu vacuum tank UNICOM or partition is arranged on bye-pass.
On above-mentioned solenoid valve and the bye-pass between vacuum tank, be provided with vacuum tank pressure relief pipe; Or on the pipeline between vacuum pump and vacuum tank, be provided with vacuum tank pressure relief pipe; Or on vacuum tank, be provided with vacuum tank pressure relief pipe.
The utility model compared to existing technology outstanding advantage is:
The utility model is compared with pure helium leak check method, has the advantages that cost of equipment is low, cost of use is low; Compare with the dry examination of pressurized air test method, have the advantages that production efficiency is high, accuracy is high, reliability is high.
Accompanying drawing explanation
Fig. 1 is helium of the present utility model and the schematic diagram of air mixing sealing test method pipe system.
In figure, 1-vacuum tank, 2-oil cooler, 3-vacuum tank pressure relief pipe, 4-solenoid valve, 5-solenoid valve, 6-helium leak check instrument, 7-oil cooler pressure relief pipe, 8-solenoid valve, 9-flowmeter, 10-pressure transducer, 11-helium transfer pipeline, 12-solenoid valve, 13-compressed air conveying pipeline, 14-pressure transducer, 15-solenoid valve, 16-flowmeter, 17-gas mixes and interim reservoir, 18-concentrations of helium sensor, 19-vacuum pump, 20-mixed gas delivery pipeline, 21-solenoid valve, 22-bye-pass.
Embodiment
Below in conjunction with accompanying drawing, with specific embodiment, the utility model is further described, referring to Fig. 1:
The equipment that utilizes helium and air hybrid test oil cooler sealing, includes vacuum tank 1, oil cooler 2 is placed in vacuum tank 1, and oil cooler 2 mixes with gas by mixed gas delivery pipeline 20 and temporary storage 17 is connected, and gas mixes and temporary storage 17 is connected with helium source of the gas by helium transfer pipeline 11, compressed air line 13 is connected with compressed air gas source, is provided with concentrations of helium sensor 18, on helium transfer pipeline 11 on gas mixing and temporary storage 17, on compressed air conveying pipeline 13, be provided with flowmeter 9, 16 and pressure transducer 10, 14, vacuum tank 1 is vacuumized by vacuum pump 19, on described mixed gas delivery pipeline 20, on helium transfer pipeline 11, on compressed air conveying pipeline 13, be provided with solenoid valve 8, 12, 15, on mixed gas delivery pipeline 20, be provided with oil cooler pressure relief pipe 7, on the pipeline between vacuum pump 19 and vacuum tank 1, be provided with helium leak check instrument 6, and on pipeline, be provided with the solenoid valve 5 of controlling vacuum tank 1 and helium leak check instrument 6 UNICOMs or partition, on vacuum tank 1, be connected with the vacuum tank pressure relief pipe 3 that vacuum tank 1 is carried out to pressure release, flowmeter 9, 16, pressure transducer 10, 14, helium leak check instrument 6 and concentrations of helium sensor 10, 14 are connected with control system, described solenoid valve 5, 8, 12, 15 by control system control action.
Above-mentioned oil cooler pressure relief pipe 7, vacuum tank pressure relief pipe 3 are on pipeline, to be provided with solenoid valve 4,21, and solenoid valve 4,21 is connected with control system.
Above-mentioned oil cooler pressure relief pipe 7 is arranged on mixed gas delivery pipeline 20 between oil cooler 2 and solenoid valve 8.
On above-mentioned vacuum pump 19 and the pipeline between vacuum tank 1, being provided with helium leak check instrument 6 is: the bye-pass 22 that is provided with UNICOM's vacuum tank 1 on the pipeline between vacuum pump 19 and vacuum tank 1, on bye-pass 22, be provided with helium leak check instrument 6, control helium leak check instrument 6 and be arranged on bye-pass 22 with the solenoid valve 5 of vacuum tank 1 UNICOM or partition.
On above-mentioned solenoid valve 5 and the bye-pass 22 between vacuum tank 1, be provided with vacuum tank pressure relief pipe 3; Or be provided with vacuum tank pressure relief pipe 3 on the pipeline between vacuum pump 19 and vacuum tank 1; Or on vacuum tank 1, be provided with vacuum tank pressure relief pipe 3.
The method of utilizing helium and air hybrid test oil cooler sealing, concrete operation method is as follows:
Oil cooler 2 is placed in vacuum tank 1, by frock clamp, fixes, with mixed gas delivery pipeline 20, oil cooler 2 is connected, is sealed with gas mixing and interim reservoir 17, vacuum tank is built sealing.Then press start button, vacuum pump 19 starts vacuum tank 1 to vacuumize, solenoid valve 12 and 15 is opened to gas and is mixed and temporary storage 17 inflation mixing simultaneously, in the process of mixing in inflation, the aeration quantity of two kinds of gases of Data Control that system obtains by pressure transducer 10,14, flowmeter 9,16 and concentrations of helium sensor 18, obtain the very few helium ratio of concentrations of helium 5~15%(and be unfavorable for detecting, too much helium ratio will improve expense), pressurized air concentration 85~95%, pressure 0.5~3MPa(sets according to product needed).Be evacuated down to the force value of setting, open solenoid valve 8 and be filled with mixed gas in oil cooler 2, open solenoid valve 5, helium leak check instrument 6 starts to check helium molecule situation of change in vacuum tank.At the appointed time, if helium gas molecules changing value surpasses setting value, illustrate that oil cooler 2 leaks, and detects and finishes, system alarm record; Otherwise, illustrate that product is qualified, stamp mark of conformity record.Detect completely, by oil cooler pressure relief pipe 3, vacuum tank pressure relief pipe 7, carry out pressure release, close other solenoid valve 5,8,12,15 on other pipelines, unclamp frock clamp, take out product.
Above-described embodiment is only preferred embodiment of the present utility model, not limits according to this protection domain of the present utility model, therefore: all equivalences of doing according to structure of the present utility model, shape, principle change, within all should being covered by protection domain of the present utility model.

Claims (5)

1. utilize the equipment of helium and air hybrid test oil cooler sealing, it is characterized in that: include for placing the vacuum tank of oil cooler, the gas being connected by mixed gas delivery pipeline with oil cooler mixes and temporary storage, gas mixes and temporary storage is connected with helium source of the gas by helium transfer pipeline, compressed air line is connected with compressed air gas source, on gas mixing and temporary storage, be provided with concentrations of helium sensor, on helium transfer pipeline, on compressed air conveying pipeline, be provided with flow and take into account pressure transducer, vacuum tank is vacuumized by vacuum pump, on described mixed gas delivery pipeline, on helium transfer pipeline, on compressed air conveying pipeline, be provided with solenoid valve, on mixed gas delivery pipeline, be provided with oil cooler pressure relief pipe, on the pipeline between vacuum pump and vacuum tank, be provided with helium leak check instrument, and on pipeline, be provided with the solenoid valve of controlling vacuum tank and helium leak check instrument UNICOM or partition, on vacuum tank, be connected with the vacuum tank pressure relief pipe that vacuum tank is carried out to pressure release, flowmeter, pressure transducer, helium leak check instrument and concentrations of helium sensor are connected with control system, described solenoid valve is by control system control action.
2. the equipment that utilizes helium and air hybrid test oil cooler sealing according to claim 1, is characterized in that: described oil cooler pressure relief pipe, vacuum tank pressure relief pipe are on pipeline, to be provided with solenoid valve, and solenoid valve is connected with control system.
3. the equipment that utilizes helium and air hybrid test oil cooler sealing according to claim 2, is characterized in that: described oil cooler pressure relief pipe is arranged on mixed gas delivery pipeline between oil cooler and solenoid valve.
4. the equipment that utilizes helium and air hybrid test oil cooler sealing according to claim 1, it is characterized in that: on described vacuum pump and the pipeline between vacuum tank, being provided with helium leak check instrument is: the bye-pass that is provided with UNICOM's vacuum tank on the pipeline between vacuum pump and vacuum tank, on bye-pass, be provided with helium leak check instrument, the solenoid valve of controlling helium leak check Yi Yu vacuum tank UNICOM or partition is arranged on bye-pass.
5. the equipment that utilizes helium and air hybrid test oil cooler sealing according to claim 4, is characterized in that: on described solenoid valve and the bye-pass between vacuum tank, be provided with vacuum tank pressure relief pipe; Or on the pipeline between vacuum pump and vacuum tank, be provided with vacuum tank pressure relief pipe; Or on vacuum tank, be provided with vacuum tank pressure relief pipe.
CN201420164214.8U 2014-04-04 2014-04-04 Equipment for testing sealing of oil cooler by using mixing of helium and air Active CN203798515U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420164214.8U CN203798515U (en) 2014-04-04 2014-04-04 Equipment for testing sealing of oil cooler by using mixing of helium and air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420164214.8U CN203798515U (en) 2014-04-04 2014-04-04 Equipment for testing sealing of oil cooler by using mixing of helium and air

Publications (1)

Publication Number Publication Date
CN203798515U true CN203798515U (en) 2014-08-27

Family

ID=51380720

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420164214.8U Active CN203798515U (en) 2014-04-04 2014-04-04 Equipment for testing sealing of oil cooler by using mixing of helium and air

Country Status (1)

Country Link
CN (1) CN203798515U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103913279A (en) * 2014-04-04 2014-07-09 浙江银轮机械股份有限公司 Method and device for testing leakproofness of oil cooler by mixing helium and air
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103913279A (en) * 2014-04-04 2014-07-09 浙江银轮机械股份有限公司 Method and device for testing leakproofness of oil cooler by mixing helium and air
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

Similar Documents

Publication Publication Date Title
CN103913279A (en) Method and device for testing leakproofness of oil cooler by mixing helium and air
CN103308254B (en) A kind of oil cooler dry test method for testing leak tightness and device thereof
CN102937470B (en) Device and method for measuring container volume by using pipeline space
CN101201286A (en) Device for testing product hermeticity
CN201028987Y (en) 10Mpa differential pressure type gas leakage detecting device
CN205102992U (en) Engine water pipe gas tightness dry -type check out test set
CN204694421U (en) Valve leak detection proving installation
CN203798515U (en) Equipment for testing sealing of oil cooler by using mixing of helium and air
CN203606092U (en) Pressure pipeline leakage detection device
CN201130079Y (en) Seal pipeline air tightness detecting device
CN103900774B (en) Oil cooler is dry, sealing test method and equipment thereof are closed in wet mixing
CN201607312U (en) Device for detecting leakage performance of motor valve of gas meter
CN103630302B (en) A kind of pipe volume pressure differential method tester
CN204694429U (en) Valve leak detection test board
CN203732328U (en) Sampling device capable of extracting gas sample from negative pressure pipeline
CN201540187U (en) Leakage detector for soft article
CN207675377U (en) A kind of automobile liquid storage dryer leakage detection apparatus
CN203772508U (en) Large-scale ventilating device air leakage rate detector
CN203148493U (en) Inside volume testing device of refrigerating system
CN203534667U (en) Non-contact liquid level detection apparatus
CN202547895U (en) Device for quickly detecting gas leakage of gas circuit
CN204661306U (en) Diaphragm seal pressure transmitter vacuum oil filling device
CN203798518U (en) Drying-wet mixing sealing testing equipment of oil cooler
CN104359630A (en) Portable machine box gas tightness leak detector
CN201672936U (en) Portable device for detecting static pressure and pipeline leakage of multi-medium meter

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model