CN104101508B - A kind of using method of explosion release window mechanics parameter assay device - Google Patents
A kind of using method of explosion release window mechanics parameter assay device Download PDFInfo
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- CN104101508B CN104101508B CN201410351104.7A CN201410351104A CN104101508B CN 104101508 B CN104101508 B CN 104101508B CN 201410351104 A CN201410351104 A CN 201410351104A CN 104101508 B CN104101508 B CN 104101508B
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- release window
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Abstract
The using method of a kind of explosion release window mechanics parameter experimental provision, belongs to environment under high pressure venting of dust explosion method and technology field.The source of the gas of this explosion release window mechanics parameter experimental provision is sequentially connected with switch valve, flow control valve, main pipeline, Pneumatic butterfly valve and corrugated tube by pipeline, being provided with rubber baffle on corrugated tube and decompression chamber between the adpting flange of increaser, decompression chamber is provided with explosion release window mounting seat, pressure transducer and displacement transducer.Flow control valve, Pneumatic butterfly valve, pressure transducer and displacement transducer and collection control system and are electrically connected.This explosion release window experimental provision utilizes the mode of increaser to make gases at high pressure act on explosion release window.Utilize explosion release window mounting seat can change multiple explosion release window to test.Control the force value of source of the gas and pressure piping, concurrently set different rubber baffle thickness, it is possible in decompression chamber, set different force value.Can measure, by the pattern of high-speed photography, the whole process that explosion release window is opened, the deformation state of venting of dust explosion each component of forms can also be recorded simultaneously.
Description
Technical field
The present invention relates to the using method of a kind of explosion release window mechanics parameter experimental provision, particularly a kind of experimental provision for testing the indexs such as the explosion release window opening time initially opening pressure, opening angle, different opening, belongs to environment under high pressure venting of dust explosion method and technology field.
Background technology
Overvoltage release is the major issue that need in explosive environments solve.In blast process, the design of venting of dust explosion mouth is the weakest in building structure entirety, most critical part.Explosion venting device quickly opening under pressure rising condition, making high temperature, gases at high pressure be fast released space outerpace is the important leverage that protection interior of building instrument and equipment, pipeline or even building masonry wall structure etc. are damaged from blast.In order to successfully avoid the damage of above-mentioned equipment to occur, the design of venting of dust explosion equipment and the pressure design of building masonry wall, inner facility have to comply with the protection criterion specified.
In order to produce to damage to building after preventing pressure piping from blasting in such as nuclear power Factory Building, often application explosion release window outwards discharges rapidly overpressure gases.
In order to verify the venting of dust explosion ability of specified pressure under explosion release window application conditions at the scene, it is necessary to design key mechanics parameter and the design objective of a set of experimental system and test method acquisition explosion release window.This experimental system directly provides test data for the high temperature such as China's nuclear power, thermoelectricity, the blast of high pressure field and Explosion-proof Design.Result of the test directly provides foundation for the design of industrial site explosion protection.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of explosion release window mechanics parameter experimental provision, particularly a kind of can be used for testing the experimental provision that explosion release window initially opens the index such as opening time of pressure, opening angle, different opening.
The present invention takes techniques below scheme: a kind of explosion release window mechanics parameter experimental provision, including source of the gas, high-speed camera and acquisition control system, described source of the gas is sequentially connected with switch valve and flow control valve by pipeline, flow control valve connects Pneumatic butterfly valve and corrugated tube through main pipeline, corrugated tube and decompression chamber are provided with rubber baffle between the adpting flange of increaser, decompression chamber is provided with explosion release window mounting seat, pressure transducer and displacement transducer, and described flow control valve, Pneumatic butterfly valve, pressure transducer and displacement transducer and acquisition control system are electrically connected.
The side of described decompression chamber is provided with a displacement transducer, is provided around four pressure transducers in explosion release window mounting seat.
The step of described a kind of explosion release window mechanics parameter experimental provision using method is as follows:
A. regulate flow control valve to specifying aperture, meet gas flow output requirement；
B. close Pneumatic butterfly valve, open switch valve, make manifold pressure reach setting value, close switch valve；
C. open acquisition control system, comprise the signals collecting of pressure transducer, displacement transducer and high-speed camera；
D. opening Pneumatic butterfly valve, make gases at high pressure impact rubber baffle, after rubber baffle breaks, gas produces explosive effect, enters decompression chamber through increaser and explosion release window is impacted；
E. experimental data is recorded；
F. Pneumatic butterfly valve is closed.
The invention has the beneficial effects as follows: the source of the gas of this explosion release window mechanics parameter experimental provision is sequentially connected with switch valve, flow control valve, main pipeline, Pneumatic butterfly valve and corrugated tube by pipeline, being provided with rubber baffle on corrugated tube and decompression chamber between the adpting flange of increaser, decompression chamber is provided with explosion release window mounting seat, pressure transducer and displacement transducer.Flow control valve, Pneumatic butterfly valve, pressure transducer and displacement transducer and acquisition control system are electrically connected.This explosion release window experimental provision utilizes the mode of increaser to make gases at high pressure act on explosion release window.Utilize explosion release window mounting seat can change multiple explosion release window to test.Control the force value of source of the gas and pressure piping, concurrently set different rubber baffle thickness, it is possible in decompression chamber, set different force value.Can measure, by the pattern of high-speed photography, the whole process that explosion release window is opened, the deformation state of venting of dust explosion each component of forms can also be recorded simultaneously.
Accompanying drawing explanation
Fig. 1 is the system diagram of a kind of explosion release window experimental provision.
Fig. 2 is sensor mounting location figure.
In figure: 1, source of the gas, 2, switch valve, 3, flow control valve, 4, main pipeline, 5, Pneumatic butterfly valve, 6, rubber baffle, 7, increaser, 8, decompression chamber, 9, explosion release window mounting seat, 10, corrugated tube, 11, pressure transducer, 12, displacement transducer, 13, high-speed camera, 14, acquisition control system.
Detailed description of the invention
Fig. 1 illustrates the system diagram of a kind of explosion release window experimental provision.Fig. 2 illustrates sensor mounting location figure.In figure, explosion release window mechanics parameter experimental provision includes source of the gas 1, high-speed camera 13 and acquisition control system 14, source of the gas 1 is sequentially connected with switch valve 2 and flow control valve 3 by pipeline, flow control valve 3 connects Pneumatic butterfly valve 5 and corrugated tube 10 through main pipeline 4, corrugated tube 10 and be provided with rubber baffle 6 on decompression chamber 8 between the adpting flange of increaser 7.Decompression chamber 8 end face is provided with explosion release window mounting seat 9, is provided around four pressure transducers 11 in explosion release window mounting seat 9, and side is provided with a displacement transducer 12.Flow control valve 3, Pneumatic butterfly valve 5, pressure transducer 11 and displacement transducer 12 are electrically connected with acquisition control system 14.
This experimental provision adopts following experimental procedure in use:
One, pressure test method is initially opened
A. remove rubber baffle 6, close Pneumatic butterfly valve 5, open switch valve 2, make manifold pressure reach setting value, close switch valve 2；
B. open acquisition control system 14, comprise the signals collecting of pressure transducer 11, displacement transducer 12 and high-speed camera 13；
C. opening Pneumatic butterfly valve 5, gas enters decompression chamber 8 through increaser 7 and explosion release window is acted on；
D., when explosion release window is opened, Pneumatic butterfly valve 5 is closed；
E. experimental result is recorded；
F. the pressure transducer measured in High-speed video images corresponding to forms generation start-up time gathers numerical value.
Two, specified pressure time-histories explosion release window opens test
A. regulate flow control valve 3 to specifying aperture (concrete aperture depends on pressure requirements), meet gas flow output requirement；
B. close Pneumatic butterfly valve 5, open switch valve 2, make manifold pressure reach setting value, close switch valve 2；
C. open acquisition control system 14, comprise the signals collecting of pressure transducer 11, displacement transducer 12 and high-speed camera 13；
D. opening Pneumatic butterfly valve 5, make gases at high pressure impact rubber baffle 6, after rubber baffle 6 breaks, gas produces explosive effect, enters decompression chamber 8 through increaser 7 and forms are impacted；
E. the experimental result such as pressure time-process and video is preserved；
F. Pneumatic butterfly valve 5 is closed.
Claims (1)
1. the using method of an explosion release window mechanics parameter experimental provision, described experimental provision includes source of the gas (1), high-speed camera (13) and acquisition control system (14), described source of the gas (1) is sequentially connected with switch valve (2) and flow control valve (3) by pipeline, flow control valve (3) connects Pneumatic butterfly valve (5) and corrugated tube (10) through main pipeline (4), it is provided with rubber baffle (6) between the adpting flange of corrugated tube (10) and the upper increaser (7) of decompression chamber (8), decompression chamber (8) is provided with explosion release window mounting seat (9), pressure transducer (11) and displacement transducer (12), described flow control valve (3), Pneumatic butterfly valve (5), pressure transducer (11) and displacement transducer (12) are electrically connected with acquisition control system (14)；The side of described decompression chamber (8) is provided with a displacement transducer (12), is provided around four pressure transducers (11) in explosion release window mounting seat (9)；It is characterized in that: the use step of described experimental provision is as follows:
A. regulate flow control valve (3) to specifying aperture, meet gas flow output requirement；
B. close Pneumatic butterfly valve (5), open switch valve (2), make manifold pressure reach setting value, close switch valve (2)；
C. open acquisition control system (14), comprise the signals collecting of pressure transducer (11), displacement transducer (12) and high-speed camera (13)；
D. opening Pneumatic butterfly valve (5), make gases at high pressure impact rubber baffle (6), after rubber baffle (6) breaks, gas produces explosive effect, enters decompression chamber (8) through increaser (7) and explosion release window is impacted；
E. experimental data is recorded；
F. Pneumatic butterfly valve (5) is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410351104.7A CN104101508B (en) | 2014-07-22 | 2014-07-22 | A kind of using method of explosion release window mechanics parameter assay device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410351104.7A CN104101508B (en) | 2014-07-22 | 2014-07-22 | A kind of using method of explosion release window mechanics parameter assay device |
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| Publication Number | Publication Date |
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| CN104101508A CN104101508A (en) | 2014-10-15 |
| CN104101508B true CN104101508B (en) | 2016-06-29 |
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| CN201410351104.7A Expired - Fee Related CN104101508B (en) | 2014-07-22 | 2014-07-22 | A kind of using method of explosion release window mechanics parameter assay device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502208B (en) * | 2014-11-25 | 2017-01-25 | 徐州工程学院 | Explosion venting door experiment and testing equipment |
| CN108732046B (en) * | 2018-07-31 | 2023-07-21 | 南京工业大学 | Steel oil storage tank wall surface damage experimental platform under multi-disaster coupling effect and experimental method thereof |
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| US3936659A (en) * | 1974-05-31 | 1976-02-03 | Mainord Kenneth R | Electrically heated oven for high temperature cleaning |
| CN1731077A (en) * | 2005-08-18 | 2006-02-08 | 东北大学 | Method and apparatus for initiatively venting explosion |
| CN201811836U (en) * | 2010-08-26 | 2011-04-27 | 北京首钢国际工程技术有限公司 | Experimental facility for simulating pressure release performance of explosion relief valve |
| CN102913008A (en) * | 2012-09-26 | 2013-02-06 | 中国船舶重工集团公司第七○二研究所 | Explosion-proof room for air pressure test |
| CN103033606A (en) * | 2012-12-11 | 2013-04-10 | 常州大学 | Method for determining minimum ignition energy of combustible gas in semi-open space |
| CN204008173U (en) * | 2014-07-22 | 2014-12-10 | 大连理工大学 | A kind of explosion release window mechanics parameter test unit |
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| 惰性气体泄爆实验与数值模拟;杨宏伟 等;《南京理工大学学报》;20050831;第29卷(第4期);第473-474页 * |
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