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 PDFInfo
- 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.)
- Expired - Lifetime
Links
- 239000001307 helium Substances 0.000 title claims abstract description 72
- 229910052734 helium Inorganic materials 0.000 title claims abstract description 72
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 238000007789 sealing Methods 0.000 title claims abstract description 17
- 238000012360 testing method Methods 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 42
- 238000005192 partition Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
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
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.
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 Expired - Lifetime 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 (3)
| 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 |
| CN114264425A (en) * | 2021-12-30 | 2022-04-01 | 福建中网电气有限公司 | Leakage detection method for pole-mounted circuit breaker |
-
2014
- 2014-04-04 CN CN201420164214.8U patent/CN203798515U/en not_active Expired - Lifetime
Cited By (3)
| 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 |
| CN114264425A (en) * | 2021-12-30 | 2022-04-01 | 福建中网电气有限公司 | Leakage detection method for pole-mounted circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang yinlun new energy thermal management system Co.,Ltd. Assignor: ZHEJIANG YINLUN MACHINERY Co.,Ltd. Contract record no.: X2021330000437 Denomination of utility model: Equipment for testing the tightness of oil cooler by mixing helium and air Granted publication date: 20140827 License type: Common License Record date: 20211018 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |
|
| CX01 | Expiry of patent term |