CN102928180A - Portable automatic tester for quantitatively measuring gas tightness of aerospace military products - Google Patents
Portable automatic tester for quantitatively measuring gas tightness of aerospace military products Download PDFInfo
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- CN102928180A CN102928180A CN2012104987136A CN201210498713A CN102928180A CN 102928180 A CN102928180 A CN 102928180A CN 2012104987136 A CN2012104987136 A CN 2012104987136A CN 201210498713 A CN201210498713 A CN 201210498713A CN 102928180 A CN102928180 A CN 102928180A
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Abstract
The invention relates to a portable automatic tester for quantitatively measuring the gas tightness of aerospace military products. A PC (Personal Computer) main engine is respectively connected with a display, a touch screen, a data collection module, a conditioning control module, a press key and an indication lamp in a bidirectional manner; after a pneumatic pressure-keeping system and a pneumatic control system are internally connected, the pneumatic control system is connected with the conditioning control module in the bidirectional manner; a pressure sensor is connected with the data collection module in the bidirectional manner; and a plurality of USB (Universal Serial Bus) interfaces and RS232 interfaces are respectively connected with a mouse, a keyboard, a printer and a product comprehensive testing system. The portable automatic tester has the technical effects that functions of automatic fixed pressure inflation, automatic pressure real-time detection, automatic timing measurement, automatic deflation, automatic qualified index judgment, automatic displacement and inflation, testing data and curve recording, testing report printing, safety monitoring and alarming and the like are realized; and the portable automatic tester is convenient to carry, can work independently and can be used when being electrified.
Description
Technical field
The present invention relates to a kind of space flight war products impermeability and quantize testing tool, particularly a kind of space flight war products impermeability measures of quantization portable automatic tester.
Background technology
At present, the impermeability automated test device on the market is commonly called as and is " leak detector ", is applied to the industries such as automobile, combustion gas more, and volume is large, automaticity is low, adopts the pressure reduction test philosophy, can't carry out measures of quantization and performance evaluation evaluation.
And the sealing of space flight military industry field is measured, and adopts in history bowssening always, has or not bubble to judge whether product is qualified by observation.Continuous progress along with product technology, products air tightness measures of quantization to the space flight military industry field requires just to become more and more important, the present domestic military project units such as each scientific research institutions, a part is built the needed equipment of air tightness test operation voluntarily by general test instrument, the precision and the consistance that do not form system and can't guarantee to test; Though another part has been equipped with test macro complete independently air tightness test task, yet needs a large amount of manual adjustments and control action, and shortage is to adaptability and the versatility of multiple product.
Summary of the invention
In order to solve the measures of quantization problem of space flight war products performing leak test, realize the increasingly automated of test, high precision, consistance and portability, the invention provides the impermeability that a kind of space flight war products are used, robotization, the measures of quantization portable tester, concrete technical scheme is, a kind of space flight war products impermeability measures of quantization portable automatic tester, comprise display and touch-screen, the PC main frame, button, pilot lamp, data acquisition module, the conditioning control module, pressure transducer, pneumatic pressure-retaining system, atmospheric control, system power supply, several USB interface and RS232 interface, it is characterized in that: the PC main frame respectively with display and touch-screen, data acquisition module, the conditioning control module, button, the two-way connection of pilot lamp, pneumatic pressure-retaining system, control module is two-way is connected pressure transducer and data acquisition module one-way linkage with conditioning for atmospheric control behind the atmospheric control internal links; Several USB interface are connected with the RS232 interface with mouse, keyboard, printer, product integrated test system and are connected.
Described conditioning control module by matrix, signal condition, A.D part, power supply is processed and the MCU core circuit forms, the MCU core circuit respectively with matrix, signal condition one-way linkage, with A.D partly, power supply processes two-way the connection.
Described atmospheric control comprises that impermeability detects air path part and nitrogen inflation air path part, impermeability detects air path part and comprises filtrator, two position three-way valve, precise pressure-reducing valve, tensimeter, the A two-position three way magnetic valve, unidirectional intercepting valve, retaining valve, precision pressure sensor, the B two-position three way magnetic valve, exhaust box and gas piping, be connected to filtrator, two position three-way valve, precise pressure-reducing valve, tensimeter, the unidirectional intercepting valve of A two-position three way magnetic valve, retaining valve is connected with gas piping successively, retaining valve is connected with gas piping with the test product air intake opening, test product gas outlet gas piping and precision pressure sensor, B two-position three way magnetic valve and exhaust box are connected successively; Nitrogen inflation air path part comprises A two position two-way valve, pressure transducer, A intercepting valve, B intercepting valve, B two position two-way valve and exhausr port, be connected to A two position two-way valve, pressure transducer, A intercepting valve, qualified test product air intake opening and connect successively with gas piping, qualified test product gas outlet, B intercepting valve, B two position two-way valve and exhausr port are connected with gas piping successively.
Program circuit comprises air tightness test flow process and bear interior pressure testing process, and air tightness test flow process minute following steps are carried out:
1. the test product sequence number is confirmed, filled in to station;
2. inflation reaches ratings and stops inflation, does not reach ratings and continues inflation;
3. timing begins, simultaneously data acquisition, curve plotting figure;
4. arrive time rating, data are preserved, exit, are finished, and do not continue data acquisition, curve plotting figure to time rating.
Bearing interior pressure testing process minute following steps carries out:
1. the test product sequence number is confirmed, filled in to station;
2. inflation reaches ratings and stops pressurization, does not reach ratings and continues inflation;
3. timing half a minute, exit.
Technique effect of the present invention be have that automatic constant pressure inflation, automatic pressure detect in real time, self-timing measurement, automatic deflation, automatic qualified index judgement, automatic replacing inflation, record test data and the functions such as curve, printing test form, security monitoring and warning, easy to carry, work alone, have electricity namely available.
Description of drawings
Fig. 1 is the block diagram of system of the present invention.
Fig. 2 is conditioning control module composition frame chart of the present invention.
Fig. 3 is the atmospheric control of the present invention gas circuit composition frame chart that leaks hunting.
Fig. 4 is atmospheric control gas displacement inflation gas circuit composition frame chart of the present invention.
Fig. 5 is air tightness test process flow diagram of the present invention.
Fig. 6 is the interior pressure overhaul flow chart that bears of the present invention.
Embodiment
System power supply adopts Switching Power Supply, direct generation+12V ,+5V DC voltage; The PC main frame adopts PC/104 bus industrial control system; The conditioning control module has the several functions such as signals collecting, signal condition, Digital I/O control; Pressure transducer adopts the technical grade high precision stainless steel sensor of German import, model DMP331; Whole air-channel system carries out the sealing repacking transformation of the way to reach the system sealing requirement on the pneumatic element basis of German import.
Shown in Fig. 1,2,3,4,5,6, the PC main frame respectively with two-way connections the such as display, touch-screen, data acquisition module, conditioning control module, button, behind pneumatic pressure-retaining system, the atmospheric control internal links, control module is two-way is connected with conditioning for atmospheric control, pressure transducer and data acquisition module one-way linkage, several USB interface are connected with the RS232 interface with mouse, keyboard, printer, product integrated test system and are connected.The conditioning control module by the MCU core circuit respectively with matrix, signal condition one-way linkage, process two-way being formed by connecting with AD part, power supply.Impermeability detects air path part and nitrogen inflation air path part, impermeability detects air path part and comprises that being connected to filtrator 1, two position three-way valve 2, precise pressure-reducing valve 3, tensimeter 4, A two-position three way magnetic valve 5 unidirectional intercepting valves 6, retaining valve 7 connects with gas piping 11 successively, retaining valve 7 is connected with gas piping 11 with the test product air intake opening, and the test product gas outlet is connected with precision pressure sensor 8, B two-position three way magnetic valve 9 and exhaust box 10 successively with gas piping 11; Nitrogen inflation air path part is connected to A two position two-way valve 12, pressure transducer 13, A intercepting valve 14, qualified test product air intake opening and connects successively with gas piping 11, and qualified test product gas outlet, B intercepting valve 15, B two position two-way valve 16 and exhausr port 17 are connected with gas piping 11 successively.
During test, system's control source of the gas carries out level pressure constant current inflation to test product, autoshutdown A two-position three way magnetic valve 2 when in pressure transducer 8 detects the test product chamber, reaching setup pressure value, and retaining valve 7 actions make test product automatically form closed chamber.Behind the internal pressure stable equilibrium of test product sealed chamber, the read sensor output valve through after the stipulated time, produces pressure-time changing curve in real time.
After test finishes, the annular seal space indoor gas is emptying, ready for filling the test of nitrogen or next products air tightness.
After product detection impermeability was qualified, the method for replacing with circulating was replaced product and is filled nitrogen.System automatically in accordance with regulations flow product replaced fill nitrogen, and autoshutdown and alert after finishing at the appointed time.
Claims (4)
1. space flight war products impermeability measures of quantization portable automatic tester, comprise display and touch-screen, the PC main frame, button, pilot lamp, data acquisition module, the conditioning control module, pressure transducer, pneumatic pressure-retaining system, atmospheric control, system power supply, several USB interface and RS232 interface, it is characterized in that: the PC main frame respectively with display and touch-screen, data acquisition module, the conditioning control module, button, the two-way connection of pilot lamp, pneumatic pressure-retaining system, control module is two-way is connected with conditioning for atmospheric control behind the atmospheric control internal links, pressure transducer and data acquisition module one-way linkage, several USB interface and RS232 interface respectively with mouse, keyboard, printer, the product integrated test system connects.
2. such as claim 1 space flight war products impermeability measures of quantization portable automatic tester, it is characterized in that: described conditioning control module by matrix, signal condition, A.D part, power supply is processed and the MCU core circuit forms, the MCU core circuit respectively with matrix, signal condition one-way linkage, with A.D partly, power supply processes two-way the connection.
3. such as claim 1 space flight war products impermeability measures of quantization portable automatic tester, it is characterized in that: described atmospheric control comprises that impermeability detects air path part and nitrogen inflation air path part, impermeability detects air path part and comprises filtrator (1), two position three-way valve (2), precise pressure-reducing valve (3), tensimeter (4), A two-position three way magnetic valve (5), unidirectional intercepting valve (6), retaining valve (7), precision pressure sensor (8), B two-position three way magnetic valve (9), exhaust box (10) and gas piping (11), be connected to filtrator (1), two position three-way valve (2), precise pressure-reducing valve (3), tensimeter (4), the unidirectional intercepting valve of A two-position three way magnetic valve (5) (6), retaining valve (7) uses gas piping (11) to connect successively, retaining valve (7) is connected with gas piping (11) with the test product air intake opening, test product gas outlet gas piping (11) and precision pressure sensor (8), B two-position three way magnetic valve (9) and exhaust box (10) are connected successively; Nitrogen inflation air path part comprises A two position two-way valve (12), pressure transducer (13), A intercepting valve (14), B intercepting valve (15), B two position two-way valve (16) and exhausr port (17), be connected to A two position two-way valve (12), pressure transducer (13), A intercepting valve (14), qualified test product air intake opening and connect successively with gas piping (11), qualified test product gas outlet, B intercepting valve (15), B two position two-way valve (16) and exhausr port (17) are used gas piping (11) connection successively.
4. such as claim 1 space flight war products impermeability measures of quantization portable automatic tester, it is characterized in that: program circuit comprises air tightness test flow process and bear interior pressure testing process, and air tightness test flow process minute following steps are carried out:
1. the test product sequence number is confirmed, filled in to station;
2. inflation reaches ratings and stops inflation, does not reach ratings and continues inflation;
3. timing begins, simultaneously data acquisition, curve plotting figure;
4. arrive time rating, data are preserved, exit, are finished, and do not continue data acquisition, curve plotting figure to time rating;
Bearing interior pressure testing process minute following steps carries out:
1. the test product sequence number is confirmed, filled in to station;
2. inflation reaches ratings and stops pressurization, does not reach ratings and continues inflation;
3. timing half a minute, exit.
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| CN2012104987136A CN102928180A (en) | 2012-11-30 | 2012-11-30 | Portable automatic tester for quantitatively measuring gas tightness of aerospace military products |
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| CN2012104987136A CN102928180A (en) | 2012-11-30 | 2012-11-30 | Portable automatic tester for quantitatively measuring gas tightness of aerospace military products |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994850A (en) * | 2014-06-09 | 2014-08-20 | 乳山玉龙汽车配件有限公司 | Interference magnitude detecting device and method |
| CN104330233A (en) * | 2014-11-13 | 2015-02-04 | 马鞍山职业技术学院 | Automatic detection device, automatic detection control system and automatic detection control method for hand-held air inflation gun |
| CN105547346A (en) * | 2016-02-18 | 2016-05-04 | 江西洪都航空工业集团有限责任公司 | Pressure altitude simulator |
| CN105629165A (en) * | 2016-03-09 | 2016-06-01 | 江苏永发医用设备有限公司 | System and method of testing relay and solenoid valve |
| CN106644305A (en) * | 2016-12-09 | 2017-05-10 | 李勇辉 | Water purifier testing method and detector system for water purifier |
| WO2017075897A1 (en) * | 2015-11-06 | 2017-05-11 | 广船国际有限公司 | Negative-pressure airtightness testing apparatus and method |
| CN109632203A (en) * | 2018-11-16 | 2019-04-16 | 嘉兴学院 | A kind of high-precision air tightness leakage detection apparatus and method |
| CN110441008A (en) * | 2018-05-04 | 2019-11-12 | 布劳恩惰性气体系统有限公司 | Leak test equipment, computer program product and leak test component |
| CN110673675A (en) * | 2019-10-24 | 2020-01-10 | 北京航天新风机械设备有限责任公司 | Automatic control system for air-tight test |
| CN111044229A (en) * | 2019-11-29 | 2020-04-21 | 长春市汇腾机电设备有限公司 | Low-pressure pipeline pressure-maintaining internal detection system and detection method |
| EP4386332A1 (en) * | 2022-12-16 | 2024-06-19 | National Institute for Research Development and Testing in Electrical Engineering - ICMET Craiova | Predictive method and system for determining the operating condition in big-blaster air cannons and micro-cannons |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103994850B (en) * | 2014-06-09 | 2015-12-02 | 乳山玉龙汽车配件有限公司 | A kind of magnitude of interference pick-up unit and detection method |
| CN103994850A (en) * | 2014-06-09 | 2014-08-20 | 乳山玉龙汽车配件有限公司 | Interference magnitude detecting device and method |
| CN104330233A (en) * | 2014-11-13 | 2015-02-04 | 马鞍山职业技术学院 | Automatic detection device, automatic detection control system and automatic detection control method for hand-held air inflation gun |
| CN104330233B (en) * | 2014-11-13 | 2017-02-08 | 上海正阳桑林企业发展有限公司 | Automatic detection control method for hand-held air inflation gun |
| WO2017075897A1 (en) * | 2015-11-06 | 2017-05-11 | 广船国际有限公司 | Negative-pressure airtightness testing apparatus and method |
| CN105547346A (en) * | 2016-02-18 | 2016-05-04 | 江西洪都航空工业集团有限责任公司 | Pressure altitude simulator |
| CN105629165A (en) * | 2016-03-09 | 2016-06-01 | 江苏永发医用设备有限公司 | System and method of testing relay and solenoid valve |
| CN106644305A (en) * | 2016-12-09 | 2017-05-10 | 李勇辉 | Water purifier testing method and detector system for water purifier |
| CN110441008A (en) * | 2018-05-04 | 2019-11-12 | 布劳恩惰性气体系统有限公司 | Leak test equipment, computer program product and leak test component |
| CN109632203A (en) * | 2018-11-16 | 2019-04-16 | 嘉兴学院 | A kind of high-precision air tightness leakage detection apparatus and method |
| CN110673675A (en) * | 2019-10-24 | 2020-01-10 | 北京航天新风机械设备有限责任公司 | Automatic control system for air-tight test |
| CN111044229A (en) * | 2019-11-29 | 2020-04-21 | 长春市汇腾机电设备有限公司 | Low-pressure pipeline pressure-maintaining internal detection system and detection method |
| CN111044229B (en) * | 2019-11-29 | 2024-05-31 | 奥莱特汽车科技有限公司 | Low-pressure pipeline pressure-maintaining internal detection system and detection method |
| EP4386332A1 (en) * | 2022-12-16 | 2024-06-19 | National Institute for Research Development and Testing in Electrical Engineering - ICMET Craiova | Predictive method and system for determining the operating condition in big-blaster air cannons and micro-cannons |
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Application publication date: 20130213 |