CN203259324U - Leak tightness dry test device for oil cooler - Google Patents
Leak tightness dry test device for oil cooler Download PDFInfo
- Publication number
- CN203259324U CN203259324U CN 201320240552 CN201320240552U CN203259324U CN 203259324 U CN203259324 U CN 203259324U CN 201320240552 CN201320240552 CN 201320240552 CN 201320240552 U CN201320240552 U CN 201320240552U CN 203259324 U CN203259324 U CN 203259324U
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- test chamber
- oil cooler
- electromagnetic valve
- chamber
- sealing
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Abstract
The utility model discloses a leak tightness dry test device for an oil cooler. The oil cooler is arranged in a seal test chamber slightly larger than the oil cooler, and an inner cavity of the oil cooler is isolated from the seal test chamber by a seal pipe. The inner cavity of the oil cooler, the seal test chamber and a comparison chamber are separately pressurized, wherein the inner cavity of the oil cooler is provided with high pressure, while the seal test chamber and the comparison chamber are provided with low pressure. The seal test chamber and the comparison chamber are connected by a pipe, and isolated by a differential pressure transducer. An inflation port is closed after inflation, and the differential pressure change between the seal test chamber outside the oil cooler and the comparison chamber is measured by the differential pressure transducer, so that a signal indicating whether the oil cooler is leaky is obtained, and the signal of the differential pressure transducer is transmitted to a computer system for analysis, judgment, recording and output. The device provided by the utility model has the advantages of simple processing, convenient operation, high efficiency, low cost and high reliability.
Description
Technical field
The utility model relates to commercial car, car and oil cooler dry test method for testing leak tightness and device thereof, the specifically dried experiment device of having a try of the sealing of a kind of disc type, box-type, plate fin type oil cooler such as uses.
Background technology
The oil cooler soldering later on must the hundred-percent impermeability test of carrying out.Because traditional oil cooler sealing test method is to adopt inner chamber to be filled with pressurized air, then wholely put into the method that water is observed bubble, have that the people is that visualization is unreliable, need to dry the problems such as power consumption is large, water pollution after the test.More existing dried method for testing exist test pressure high and the problems such as influence of temperature change is large, efficient is low are stablized, are subjected to pressure difficulty that cause.
Summary of the invention
To be solved in the utility model is to remedy the problems referred to above that existing sealing test method exists, aim to provide a kind of process simple, technological operation is convenient, cost is lower, efficient is high, the dried experiment device of having a try of the sealing of good reliability.
The technical scheme that addresses the above problem employing is: the dried experiment device of having a try of a kind of oil cooler sealing, the low pressure exhaust pipeline, the leak locator with differential pressure pickup, the high-pressure air source pipeline of provided with electromagnetic valve, the high pressure gas pipeline of provided with electromagnetic valve and the low-pressure gas source pipeline of provided with electromagnetic valve that comprise oil cooler, sealing test chamber, contrast chamber, provided with electromagnetic valve, it is characterized in that described oil cooler places in the described sealing test chamber high-pressure air source pipeline joint of described oil cooler and described provided with electromagnetic valve; The high pressure gas pipeline of described provided with electromagnetic valve is arranged on the solenoid valve downstream pipeline of high-pressure air source pipeline of described provided with electromagnetic valve; The low-pressure gas source pipeline joint of described sealing test chamber and contrast chamber and described provided with electromagnetic valve, and be provided with solenoid valve between the two, described solenoid valve is controlled by described leak locator with differential pressure pickup, when described sealing test chamber and the inflation of contrast chamber, open and after inflation finishes, close, make between described sealing test chamber and the contrast chamber to be in the turn-on and turn-off state; The low pressure exhaust pipeline of described provided with electromagnetic valve is arranged on the pipeline in solenoid valve downstream of low-pressure gas source pipeline of described provided with electromagnetic valve; Two test leads of described leak locator with differential pressure pickup respectively with described sealing test chamber be connected the chamber lateral line and be connected; The high pressure gas pipeline of described provided with electromagnetic valve and the low-pressure gas source pipeline of provided with electromagnetic valve are provided with pressure transducer.
As further improvement of the utility model, described sealing test chamber is made of sealing test chamber cavity and the sealing of sealing test chamber loam cake; Described sealing test chamber cavity is arranged on the frame; Described loam cake is arranged on the piston end of cylinder, and is connected on the rail plate; Described rail plate cooperates with supporting slider, and under the driving of cylinder piston along described supporting slider upstream or downstream described sealing test chamber loam cake is in open or with the state of described sealing test chamber cavity sealing.
Further improve again as of the present utility model, about described supporting slider and rail plate have respectively two, and one by one corresponding matching setting.
As further improvement of the utility model, also be provided with tri-colour LED, computer system and start button on the described frame, described each solenoid valve and cylinder are controlled by described computer system.
According to the utility model, the solenoid valve on the described low pressure line is arranged on sealing test chamber or contrast chamber one side.Described solenoid valve can be built in the leak locator with differential pressure pickup, also can be independently parts.
The dried experiment device of having a try of a kind of oil cooler sealing of the present utility model, test according to the following steps:
1) the measured oil cooler is placed in the sealing test chamber, and with the high-pressure air source pipeline joint of described oil cooler and provided with electromagnetic valve; Low-pressure gas source pipeline joint with sealing test chamber and contrast chamber and provided with electromagnetic valve; With with two test leads of the leak locator of differential pressure pickup respectively with described sealing test chamber be connected the chamber lateral line and be connected;
2) solenoid valve of opening high pressure source of the gas pipeline is filled with high pressure air through super-dry, shut electromagnetic valve after air pressure reaches predetermined value by the high-pressure air source pipeline to the measured oil cooler;
3) open the solenoid valve of low-pressure gas source pipeline, respectively sealing test chamber and contrast chamber are filled with low-pressure compressed air through super-dry, shut electromagnetic valve after air pressure reaches predetermined value by the low-pressure gas source pipeline;
4) according to the variation with two test lead pressure reduction of leak locator of differential pressure pickup, determine whether the measured oil cooler is qualified.
5) be completed after, the measured oil cooler is taken out in the solenoid valve pressure release on opening high pressure gas exhaust piping and the low pressure exhaust pipeline.
The utility model adopts the dried experiment device of having a try, and need not after the test sample is dried, thereby power consumption is little, and good economy performance can not produce water pollution problems yet.Because in sealing test chamber and contrast chamber, be filled with the low pressure dry gas, thus pressure stability, be subjected to influence of temperature change little, measuring accuracy is high, good reliability.Simultaneously, the utility model can also make whole test process full automation, operating personnel only need to put into oil cooler, press the measurement button by computer system control, and all tests, analytic process are finished and record automatically.In a word, the processing of the utility model equipment is simple, technological operation is convenient, efficient is high, expense is low, good reliability.
Description of drawings
Fig. 1 is test philosophy figure of the present utility model.
Fig. 2 is the general arrangement schematic of the utility model test unit.
Fig. 3 is the structural representation of another embodiment of the utility model test unit.
Among the figure, 1-oil cooler (test product), 2-sealing test chamber, 3-contrasts the chamber, the low pressure exhaust pipeline of 4-provided with electromagnetic valve, 5-be with the leak locator of differential pressure pickup, the high-pressure air source pipeline of 6-provided with electromagnetic valve, the 7-pressure transducer, the high pressure gas pipeline of 8-provided with electromagnetic valve, the low-pressure gas source pipeline of 9-provided with electromagnetic valve, 10-frame, 11-sealing test chamber cavity, 12-sealing test chamber loam cake, 13-rail plate, 14-supporting slider, the 15-cylinder, the 16-tri-colour LED, 17 computer systems, 18-start button, the 19-solenoid valve, the 20-low pressure line.
Embodiment
See figures.1.and.2, the dried electricity testing device of sealing of the present utility model mainly comprises oil cooler 1, sealing test chamber 2, contrast chamber 3, the low pressure exhaust pipeline 4 of provided with electromagnetic valve, leak locator 5 with differential pressure pickup, the high-pressure air source pipeline 6 of provided with electromagnetic valve, pressure transducer 7, the high pressure gas pipeline 8 of provided with electromagnetic valve, the low-pressure gas source pipeline 9 of provided with electromagnetic valve, frame 10, sealing test chamber cavity 11, sealing test chamber loam cake 12, rail plate 13, supporting slider 14, cylinder 15, tri-colour LED 16, computer system 17(comprises computer, display screen, the PLC(programmable logic controller (PLC))), start button 18, solenoid valve 19, low pressure line 20.
Described oil cooler 1 places in the described sealing test chamber 2, and described oil cooler 1 docks with the high-pressure air source pipeline 6 of described provided with electromagnetic valve; The high pressure gas pipeline 8 of described provided with electromagnetic valve is arranged on the solenoid valve downstream pipeline of high-pressure air source pipeline 6 of described provided with electromagnetic valve; Dock with the low-pressure gas source pipeline 9 of described provided with electromagnetic valve by low pressure line 20 in described sealing test chamber 2 and contrast chamber 3, a side that is positioned at contrast chamber 3 on the described low pressure line 20 is provided with solenoid valve 19, described solenoid valve 19 is controlled by described leak locator 5 with differential pressure pickup, when described sealing test chamber 2 and 3 inflation of contrast chamber, open and after inflation finishes, close, make between described sealing test chamber 2 and the contrast chamber 3 to be in the turn-on and turn-off state; The low pressure exhaust pipeline 4 of described provided with electromagnetic valve is arranged on the pipeline in solenoid valve downstream of low-pressure gas source pipeline 9 of described provided with electromagnetic valve; Two test leads of described leak locator 5 with differential pressure pickup respectively with described sealing test chamber 2 be connected chamber 3 lateral lines and be connected; Be equipped with pressure transducer 7 on the high pressure gas pipeline 8 of described provided with electromagnetic valve and the low-pressure gas source pipeline 9 of provided with electromagnetic valve.
Described sealing test chamber 2 is made of sealing test chamber cavity 11 and 12 sealings of sealing test chamber loam cake; Described sealing test chamber cavity 11 is arranged on the frame 10; Described loam cake 12 is arranged on the piston end of cylinder 15, and is connected on the rail plate 13; Described rail plate 13 cooperates with supporting slider 14, and under the driving of cylinder 15 pistons along described supporting slider 14 upstream or downstream described sealing test chamber loam cake 12 is in open or with the state of described sealing test chamber cavity 11 sealings.
About described supporting slider 14 and rail plate 13 have respectively two, and one by one corresponding matching setting.
Described each solenoid valve and cylinder 15 are controlled by described computer system 17.
The utility model is worked by the following method: correctly put into oil cooler 1 to sealing test chamber cavity 11, oil cooler 1 docks with high-pressure gas circuit 6, press start button 18, cylinder 15 drive sealing test chamber loam cakes 12 under the effect of rail plate 13 along supporting slider 14 move downward with 11 sealings of sealing test chamber cavity (better for making sealing effectiveness, can sealing test chamber cavity 11 and or sealing test chamber loam cake 12 sealing rubber ring is set) formation sealing test chamber 2.System automatically opens the inflation solenoid valve and simultaneously three cavitys is inflated, wherein oil cooler 1 is filled with 0.5～2MPa(by preset value) through the high pressure air of super-dry, sealing test chamber 2 and contrast chamber 3 are filled with 100～5000Pa(by preset value) through the low-pressure compressed air of super-dry, all inflation closed electromagnetic valves after inflation is finished, sealing test chamber 2 and contrast chamber 3 also are disconnected.This moment, the sealing test chamber 2 of leak locator 5 differential pressure pickup both sides was identical with the pressure in contrast chamber 3, because pressure is low, so required stabilization time is short, and also influenced by ambient temperature minimum.Oil cooler 1 internal pressure is high, and be sealed in the sealing test chamber 2 fully, if oil cooler 1 leaks, then the pressure in sealing test chamber 2 can rise, the differential pressure pickup of leak locator 5 is sensed the variation of pressure reduction, data after converting are imported into computer system 17 to be analyzed, judge and convert (can be output as pressure reduction changing value or slip), and stamp the mark of corresponding acceptance or rejection at oil cooler 1, tri-colour LED 16 sends whether qualified alarm is indicated, the computer record test result, system opens air release 4 automatically, 8 pressure releases, the manual product that takes out, test finishes.
Preferably, frame adopts high-strength aluminum alloy section, and the oil cooler cumulative volume is less than 5 liters, the less better effects if of sealing test chamber volume.
With reference to Fig. 3, the another kind of embodiment of the dried experiment device of having a try of a kind of oil cooler sealing of the utility model.Be that with last embodiment difference the solenoid valve 19 on the described low pressure line 20 is arranged on a side in sealing test chamber 2, all the other structures are identical with last embodiment, also can reach identical technique effect.
What should be understood that is: above-mentioned enforcement is just to explanation of the present utility model, rather than to restriction of the present utility model, any utility model that does not exceed in the utility model connotation scope is created, and all falls within the protection domain of the present utility model.
Claims (5)
1. dried experiment device of having a try of oil cooler sealing, the low pressure exhaust pipeline (4), the leak locator (5) with differential pressure pickup, the high-pressure air source pipeline (6) of provided with electromagnetic valve, the high pressure gas pipeline (8) of provided with electromagnetic valve and the low-pressure gas source pipeline (9) of provided with electromagnetic valve that comprise oil cooler (1), sealing test chamber (2), contrast chamber (3), provided with electromagnetic valve, it is characterized in that described oil cooler (1) places in the described sealing test chamber (2), described oil cooler (1) docks with the high-pressure air source pipeline (6) of described provided with electromagnetic valve; The high pressure gas pipeline (8) of described provided with electromagnetic valve is arranged on the solenoid valve downstream pipeline of high-pressure air source pipeline (6) of described provided with electromagnetic valve; Dock with the low-pressure gas source pipeline (9) of described provided with electromagnetic valve by low pressure line (20) in described sealing test chamber (2) and contrast chamber (3), described low pressure line (20) is provided with solenoid valve (19), described solenoid valve (19) is controlled by described leak locator with differential pressure pickup (5), when described sealing test chamber (2) and contrast chamber (3) inflation, open and after inflation finishes, close, make between described sealing test chamber (2) and the contrast chamber (3) to be in the turn-on and turn-off state; The low pressure exhaust pipeline (4) of described provided with electromagnetic valve is arranged on the pipeline in solenoid valve downstream of low-pressure gas source pipeline (9) of described provided with electromagnetic valve; Two test leads of described leak locator with differential pressure pickup (5) respectively with described sealing test chamber (2) be connected chamber (3) lateral line and be connected; The high pressure gas pipeline (8) of described provided with electromagnetic valve and the low-pressure gas source pipeline (9) of provided with electromagnetic valve are provided with pressure transducer (7).
2. the dried experiment device of having a try of a kind of oil cooler sealing as claimed in claim 1 is characterized in that described sealing test chamber (2) is made of sealing test chamber cavity (11) and sealing test chamber loam cake (12) sealing; Described sealing test chamber cavity (11) is arranged on the frame (10); Described loam cake (12) is arranged on the piston end of cylinder (15), and is connected on the rail plate (13); Described rail plate (13) cooperates with supporting slider (14), and under the driving of cylinder (15) piston along described supporting slider (14) upstream or downstream described sealing test chamber loam cake (12) is in open or with the state of described sealing test chamber cavity (11) sealing.
3. the dried experiment device of having a try of a kind of oil cooler sealing as claimed in claim 2, it is characterized in that described supporting slider (14) and rail plate (13) have respectively about two, and one by one corresponding matching setting.
4. the dried experiment device of having a try of a kind of oil cooler sealing as claimed in claim 3, it is characterized in that also being provided with on the described frame (10) tri-colour LED (16), computer system (17) and start button (18), described each solenoid valve and cylinder (15) are controlled by described computer system (17).
5. such as the dried experiment device of having a try of any one described a kind of oil cooler sealing of claim 1-4, it is characterized in that the solenoid valve (19) on the described low pressure line (20) is arranged on sealing test chamber (2) or contrast chamber (3) one sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320240552 CN203259324U (en) | 2013-05-06 | 2013-05-06 | Leak tightness dry test device for oil cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320240552 CN203259324U (en) | 2013-05-06 | 2013-05-06 | Leak tightness dry test device for oil cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203259324U true CN203259324U (en) | 2013-10-30 |
Family
ID=49471877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320240552 Withdrawn - After Issue CN203259324U (en) | 2013-05-06 | 2013-05-06 | Leak tightness dry test device for oil cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203259324U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308254A (en) * | 2013-05-06 | 2013-09-18 | 浙江银轮机械股份有限公司 | Dry test method and dry test device for testing leak tightness of oil cooler |
| CN113483968A (en) * | 2021-06-25 | 2021-10-08 | 成都飞机工业（集团）有限责任公司 | Double-cavity differential pressure leakage detection system and detection method |
-
2013
- 2013-05-06 CN CN 201320240552 patent/CN203259324U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308254A (en) * | 2013-05-06 | 2013-09-18 | 浙江银轮机械股份有限公司 | Dry test method and dry test device for testing leak tightness of oil cooler |
| CN103308254B (en) * | 2013-05-06 | 2016-04-13 | 浙江银轮机械股份有限公司 | A kind of oil cooler dry test method for testing leak tightness and device thereof |
| CN113483968A (en) * | 2021-06-25 | 2021-10-08 | 成都飞机工业（集团）有限责任公司 | Double-cavity differential pressure leakage detection system and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131030 Effective date of abandoning: 20160413 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |