CN202329948U - Test device for simulating working environment to check tightness of workpiece - Google Patents
Test device for simulating working environment to check tightness of workpiece Download PDFInfo
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- CN202329948U CN202329948U CN2011204535411U CN201120453541U CN202329948U CN 202329948 U CN202329948 U CN 202329948U CN 2011204535411 U CN2011204535411 U CN 2011204535411U CN 201120453541 U CN201120453541 U CN 201120453541U CN 202329948 U CN202329948 U CN 202329948U
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Abstract
The utility model provides a test device for simulating a working environment to check the tightness of a workpiece. The test device comprises an air supply system, an electric heater, a test cabin, an exhaust pipe, an oil path system, a temperature sensor, a pressure sensor and a control console, wherein an air inlet of the electric heater is connected with the air supply system through a pipe fitting, and an air outlet of the electric heater is connected with an air inlet of the test cabin through the pipe fitting; an air outlet of the test cabin is connected with an air outlet pipe; the temperature sensor and the pressure sensor are mounted on the test cabin and are connected with the control console through a lead wire; the oil path system comprises an oil tank, a first low-pressure oil pump, a second low-pressure oil pump, a high-pressure oil pump, an oil return path, an oil inlet path and an oil supply adjustment path; the control console is used for controlling the air supply system and the electric heater so that a temperature and pressure in the test cabin accord with the working environment of the workpiece to be checked; and the control console is further used for controlling the oil path system so that the oil supply of the oil path system meets requirements of the tightness test of the workpiece to be checked.
Description
Technical field
The utility model belongs to Work piece sealing property test unit, is particularly a kind ofly colding and heat succeed each other (hot state-normal temperature state-Re state-normal temperature state) and is having the impermeability test device of the workpiece that uses in the working environment of certain pressure.
Background technology
The working environment of some workpiece (for example fuel nozzle) had both had the variation that colds and heat succeed each other (hot state-normal temperature state-Re state-normal temperature state) of temperature; Have certain pressure again, and the existence of the variation of environment temperature and pressure certainly will exert an influence to the sealing of workpiece.Therefore, simulating its working environment carries out impermeability test to this type of workpiece and is significant to improving reliability of products.But in the prior art, the impermeability test of this type of workpiece is only carried out under normal temperature, normal pressure usually, thereby is difficult to guarantee that it has good sealing property in the working environment of reality.
Summary of the invention
The purpose of the utility model is to provide a kind of test unit of analog operation environmental test Work piece sealing property, colds and heat succeed each other and changes and there is the leak check of the workpiece in the environment in pressure so that be operated in environment temperature, improves the reliability of its work.
The test unit of the said analog operation environmental test of the utility model Work piece sealing property comprises air supply system, electric heater, experimental cabin, gas outlet, oil piping system, temperature sensor, pressure transducer and control desk; The air intake opening of electric heater is connected with air supply system through pipe fitting; The exhausr port of electric heater is connected with the air intake opening of experimental cabin through pipe fitting; The exhausr port of experimental cabin is connected with gas outlet, and temperature sensor is installed on the experimental cabin with pressure transducer and is connected with control desk through lead; Oil piping system comprises fuel tank, first low pressure fuel pump, second low pressure fuel pump, high-pressure oil pump, oil return circuit, oil-feed oil circuit and fuel feeding adjusting oil circuit; The oil-in of first low pressure fuel pump communicates with the oil return opening that is examined workpiece through the anchor clamps that are installed on the experimental cabin; The oil-out of first low pressure fuel pump is connected with the oil inlet end of oil return circuit; The oil outlet end of said oil return circuit is connected with fuel tank; The oil-in of second low pressure fuel pump is connected with fuel tank through pipe fitting, and the oil-out of second low pressure fuel pump is connected with the oil-in of high-pressure oil pump through pipe fitting, and the oil-out of high-pressure oil pump is connected with the oil inlet end that oil-feed oil circuit and fuel feeding are regulated oil circuit; The oil outlet end of oil-feed oil circuit is connected with the oil-in that is examined workpiece in being fixed on experimental cabin, and the oil outlet end that fuel feeding is regulated oil circuit is connected with fuel tank; Control desk is used to receive interior temperature and the pressure signal of experimental cabin that temperature sensor and pressure transducer transmit, and air supply system, electric heater are controlled, and makes temperature and pressure in the experimental cabin meet the working environment that is examined workpiece; Control desk also is used for the control of oil piping system, makes the fuel feeding of oil piping system meet the impermeability test requirement that is examined workpiece.
In order to quicken the fluid cooling on the oil return circuit, in the oil piping system of the said test unit of the utility model, its oil return circuit is provided with cooling water tank.
The test unit of the said analog operation environmental test of the utility model Work piece sealing property; Its air supply system comprises first motor, fan blower and gas-holder; The PTO of first motor is connected with the power input shaft of fan blower; The air outlet of fan blower is connected with the gas-holder air intake opening through pipe fitting, and gas-holder is provided with air intake control valve with the pipe fitting that the electric heater air intake opening is connected.
The utlity model has following beneficial effect:
1, the utility model is to be operated in environment temperature to cold and heat succeed each other and change and pressure exists the leak check of the workpiece in the environment that a kind of new test unit is provided.
2, use the said test unit of the utility model, can simulate the real work environment of workpiece to be detected and in this environment the sealing to workpiece check that thereby the reliability of the workpiece of passed examination in real work improve, prolong serviceable life.
3, the test unit of the said analog operation environmental test of the utility model Work piece sealing property is not only easy to use, and simple in structure, is convenient to processing and fabricating.
Description of drawings
Fig. 1 is a kind of structural representation of the test unit of the said analog operation environmental test of the utility model Work piece sealing property.
Among the figure, 1-first motor, 2-fan blower, 3-gas-holder, 4-air intake control valve, 5-electric heater, 6-pressure transducer, 7-temperature sensor, 8-experimental cabin, 9-are examined workpiece, 10-anchor clamps, 11-first low pressure fuel pump; 12 cooling water tanks, 13-gas outlet, the secondary oil-feed oil circuit of 14-, 15-master's oil-feed oil circuit, the 16-first oil-feed variable valve, the 17-second oil-feed variable valve, 18-oil return regulating valve, 19-second motor, 20-second low pressure fuel pump, 21-oil-feed operation valve, 22-high-pressure oil pump, 23-fuel tank, 24-control desk, 25-fuel feeding are regulated oil circuit.
Embodiment
The structure of the test unit of the said analog operation environmental test of the utility model Work piece sealing property is described further through embodiment below in conjunction with accompanying drawing.
The test unit of the said analog operation environmental test of present embodiment Work piece sealing property is used for the sealing of fuel nozzle is checked that the working environment of fuel nozzle is: temperature is in 360 ℃-normal temperature-360 ℃-normal temperature alternate, and pressure is 9.8MPa.
The test unit of the said analog operation environmental test of present embodiment Work piece sealing property, its structure comprises air supply system, electric heater 5, experimental cabin 8, gas outlet 13, oil piping system, temperature sensor 7, pressure transducer 6 and control desk 24 shown in accompanying drawing 1.
Air supply system is made up of first motor 1, fan blower 2, gas-holder 3 and air intake control valve 4; The PTO of first motor 1 is connected with the power input shaft of fan blower 2; The air outlet of fan blower 2 is connected with gas-holder 3 air intake openings through pipe fitting; Air intake control valve 4 is arranged on gas-holder 3 and the pipe fitting that electric heater 5 air intake openings are connected, with the flow velocity and the temperature of control air inlet.The exhausr port of electric heater 5 is connected with the air intake opening of experimental cabin 8 through pipe fitting, and the exhausr port of experimental cabin 8 afterbodys is connected with gas outlet 13, temperature sensor 7 and pressure transducer 6 be installed on the experimental cabin 8 and with also be connected with control desk through lead.Oil piping system comprises that fuel tank 23, first low pressure fuel pump 11, second low pressure fuel pump 20, high-pressure oil pump 22, oil return circuit, oil-feed oil circuit and fuel feeding regulate oil circuit 25; The oil-in of first low pressure fuel pump 11 communicates with the oil return opening of fuel nozzle through the anchor clamps 10 that are installed on the experimental cabin; The oil-out of first low pressure fuel pump 11 is connected with the oil inlet end of oil return circuit; The oil outlet end of said oil return circuit is connected with fuel tank 23, and oil return circuit is provided with cooling water tank 12; The oil-in of second low pressure fuel pump 20 is connected with fuel tank 23 through pipe fitting; The oil-out of second low pressure fuel pump 20 is connected with the oil-in of high-pressure oil pump 22 through pipe fitting; High-pressure oil pump 22 is driven by second motor 19, and its oil-out is connected with the oil inlet end that oil-feed oil circuit and fuel feeding are regulated oil circuit; The oil-feed oil circuit is made up of main oil-feed oil circuit 15 and secondary oil-feed oil circuit 14, the oil outlet end of main oil-feed oil circuit 15 and secondary oil-feed oil circuit 14 respectively be fixed on experimental cabin in two oil-ins of fuel nozzle be connected; The oil outlet end that fuel feeding is regulated oil circuit 25 is connected with fuel tank 23; Fuel tank 23 is provided with oil-feed operation valve 21 with the pipe fitting that second low pressure fuel pump 20 is connected; Main oil-feed oil circuit 15 is provided with the first oil-feed variable valve 16; Secondary oil-feed oil circuit 14 is provided with the second oil-feed variable valve 17, and fuel feeding is regulated oil circuit 25 and is provided with oil return regulating valve 18.Control desk 24 is used to receive temperature and the pressure signal in the experimental cabin 8 that temperature sensor 7 and pressure transducer 6 transmitted; And the air intake control valve in the air supply system 4, electric heater 5 controlled the working environment that makes temperature and pressure in the experimental cabin 8 meet fuel nozzle; Control desk 24 also is used for the duty that control oil channel system first low pressure fuel pump 11, second low pressure fuel pump 20, high-pressure oil pump 22 and oil-feed oil circuit, fuel feeding are regulated each set on the oil circuit 25 valve, makes the fuel feeding of oil piping system meet the impermeability test requirement of fuel nozzle.
The method of application of the test unit of the said analog operation environmental test of present embodiment Work piece sealing property: fuel nozzle is inserted experimental cabin 8 and is screwed; With the fixing scavenge pipe of fuel nozzle of anchor clamps 10; Two oil-ins of fuel nozzle are connected with secondary oil-feed oil circuit 14 with main oil-feed oil circuit 15 respectively; Require the controlled variable of setting control panel according to the working environment of fuel nozzle and impermeability test, operating console can be accomplished test.
Claims (3)
1. the test unit of an analog operation environmental test Work piece sealing property; It is characterized in that comprising air supply system, electric heater (5), experimental cabin (8), gas outlet (13), oil piping system, temperature sensor (7), pressure transducer (6) and control desk (24); The air intake opening of electric heater (5) is connected with air supply system through pipe fitting; The exhausr port of electric heater (5) is connected with the air intake opening of experimental cabin (8) through pipe fitting; The exhausr port of experimental cabin (8) is connected with gas outlet (13), and temperature sensor (7) is installed in experimental cabin (8) with pressure transducer (6) and upward and through lead is connected with control desk;
Oil piping system comprises fuel tank (23), first low pressure fuel pump (11), second low pressure fuel pump (20), high-pressure oil pump (22), oil return circuit, oil-feed oil circuit and fuel feeding adjusting oil circuit (25); The oil-in of first low pressure fuel pump (11) communicates with the oil return opening that is examined workpiece through the anchor clamps (10) that are installed on the experimental cabin; The oil-out of first low pressure fuel pump (11) is connected with the oil inlet end of oil return circuit; The oil outlet end of said oil return circuit is connected with fuel tank (23); The oil-in of second low pressure fuel pump (20) is connected with fuel tank (23) through pipe fitting; The oil-out of second low pressure fuel pump (20) is connected with the oil-in of high-pressure oil pump (22) through pipe fitting; The oil inlet end that the oil-out of high-pressure oil pump (22) and oil-feed oil circuit and fuel feeding are regulated oil circuit is connected, and the oil outlet end of oil-feed oil circuit is connected with the oil-in that is examined workpiece (9) in being fixed on experimental cabin, and the oil outlet end of fuel feeding adjusting oil circuit (25) is connected with fuel tank (23);
Control desk (24) is used to receive temperature and the pressure signal in the experimental cabin (8) that temperature sensor (7) and pressure transducer (6) transmitted; And air supply system, electric heater (5) controlled, make temperature and pressure in the experimental cabin (8) meet the working environment that is examined workpiece; Control desk (24) also is used for the control of oil piping system, makes the fuel feeding of oil piping system meet the impermeability test requirement that is examined workpiece.
2. the test unit of analog operation environmental test Work piece sealing property according to claim 1 is characterized in that the oil return circuit in the oil piping system is provided with cooling water tank (12).
3. the test unit of analog operation environmental test Work piece sealing property according to claim 1 and 2; It is characterized in that air supply system comprises first motor (1), fan blower (2) and gas-holder (3); The PTO of first motor (1) is connected with the power input shaft of fan blower (2); The air outlet of fan blower (2) is connected with gas-holder (3) air intake opening through pipe fitting, and gas-holder (3) is provided with air intake control valve (4) with the pipe fitting that electric heater (5) air intake opening is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204535411U CN202329948U (en) | 2011-11-16 | 2011-11-16 | Test device for simulating working environment to check tightness of workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204535411U CN202329948U (en) | 2011-11-16 | 2011-11-16 | Test device for simulating working environment to check tightness of workpiece |
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| Publication Number | Publication Date |
|---|---|
| CN202329948U true CN202329948U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204535411U Expired - Fee Related CN202329948U (en) | 2011-11-16 | 2011-11-16 | Test device for simulating working environment to check tightness of workpiece |
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| CN (1) | CN202329948U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314872A (en) * | 2017-06-28 | 2017-11-03 | 厦门艾尔普斯汽车零配件有限责任公司 | Automobile engine cylinder head airtight test method and device |
| CN107449657A (en) * | 2017-09-01 | 2017-12-08 | 贵州永红航空机械有限责任公司 | A kind of negative pressure pressure alternation test method and apparatus |
| CN108181049A (en) * | 2017-12-21 | 2018-06-19 | 重庆晓微城企业孵化器有限公司 | A kind of watertightness airtightness test table blow-dry device |
| CN108507724A (en) * | 2018-05-17 | 2018-09-07 | 安徽江淮汽车集团股份有限公司 | Engine leakage test tool |
| CN112326535A (en) * | 2020-11-19 | 2021-02-05 | 南京工业职业技术大学 | Low-temperature test system for hydraulic filter and detection method thereof |
-
2011
- 2011-11-16 CN CN2011204535411U patent/CN202329948U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314872A (en) * | 2017-06-28 | 2017-11-03 | 厦门艾尔普斯汽车零配件有限责任公司 | Automobile engine cylinder head airtight test method and device |
| CN107449657A (en) * | 2017-09-01 | 2017-12-08 | 贵州永红航空机械有限责任公司 | A kind of negative pressure pressure alternation test method and apparatus |
| CN108181049A (en) * | 2017-12-21 | 2018-06-19 | 重庆晓微城企业孵化器有限公司 | A kind of watertightness airtightness test table blow-dry device |
| CN108181049B (en) * | 2017-12-21 | 2019-07-23 | 重庆晓微城企业孵化器有限公司 | A kind of watertightness airtightness test table blow-dry device |
| CN108507724A (en) * | 2018-05-17 | 2018-09-07 | 安徽江淮汽车集团股份有限公司 | Engine leakage test tool |
| CN112326535A (en) * | 2020-11-19 | 2021-02-05 | 南京工业职业技术大学 | Low-temperature test system for hydraulic filter and detection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20201116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |