CN101776529A - Equipment for small scale booster test - Google Patents
Equipment for small scale booster test Download PDFInfo
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- CN101776529A CN101776529A CN200910190394A CN200910190394A CN101776529A CN 101776529 A CN101776529 A CN 101776529A CN 200910190394 A CN200910190394 A CN 200910190394A CN 200910190394 A CN200910190394 A CN 200910190394A CN 101776529 A CN101776529 A CN 101776529A
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Abstract
The invention relates to a device for small scale booster test. The device is used to test the explosion-proof parameters of the explosion-proof equipments, in particular booster tests with a volume of less than 20 cubic centimetres. The device comprises a metallic external test chamber, in which an independent internal test chamber is set. The metallic external chamber and the internal chamber share a chassis and are externally interconnected with a stop valve. The internal test chamber cover is arranged in the external test chamber, connected by a screw thread. The internal and external test chambers are interconnected with metallic sintered breathing apparatus. By repetitive booster experiments with all kinds of gas mixture, the device for small scale booster test can further calculate the explosion-proof parameters at smaller volume so as to complete the national standards.
Description
Technical field
The present invention relates to a kind of propagation of explosion test unit, refer to the equipment for small scale booster test of a kind of volume especially in the flame-proof type below 20 cubic centimetres.
Background technology
People are in order to detect the security of various various devices of working in the explosive environment, for some equipment of under inflammable and explosive property environment, working, require these equipment to have good explosion-proof performance reliably, antiknock device is divided into multiple according to explosion-proof characteristic, flame-proof type explosion-proof equipment wherein, be to wrap up an airtight cavity by the outside at this antiknock device, the isolated mode of blast that its inside is caused by this cavity and outside Flammable atmosphere is come explosion-proof, in order to test the reliability of the used airtight cavity of these anti-explosion products, will use various propagation of explosion test units and carry out explosion-proof test, sensing chamber's volume of different propagation of explosion test units has certain influence to testing result, the experiment of at present common propagation of explosion test unit all will be used explosive mixed gas and be tested, the detection of common explosive mixed gas had both required sensor to contact with hazardous gas, energy in the internal circuit can not be passed in the middle of the external environment condition again, generally the volume of the gas detection chamber of propagation of explosion test unit is all smaller, the most commonly use two kinds of limits of metal powder metallurgy slug type and metal sintering type burner, for metal sintering type limit burner, this limit burner can make gas arrive sensor by limitting burner, the explosion energy that can be controlled at the generation of sensing chamber again is unlikely to the external environment condition of igniting, concerning metal powder metallurgy slug type or wire netting slug type limit burner, its thickness and voidage are bigger to the response time influence of sensor, reduce the response time that thickness and increasing voidage improve sensor effectively, but also be easy to generate propagation of explosion, in the application of reality, how to select explosion-proof parameter just to seem particularly important for the less sensor test chamber of volume.
At present, known flame-proof type explosion-proof shell explosion-proof test parameter minimum volume is defined as 100 cubic centimetres of (GB GB3836.2, IEC60079-1), for the explosive atmosphere of volume less than 100 cubic centimetres, two parameters that institute's electrical installation flameproof enclosure is common: " maximum safety clearance " and " explosion-proof composition surface width " etc., usually all test by the parameter of 100 cubic centimetres of volumes, and in theory, for the flame-proof type explosion-proof shell of volume less than 20 cubic centimetres, its " maximum safety clearance " and " explosion-proof composition surface width " should be lower than volume is 100 cubic centimetres " maximum safety clearance " and " explosion-proof composition surface width ", but in actual applications, the condition that is limited to testing equipment, volume is less than the maximum safety clearance of 20 cubic centimetres flame-proof type explosion-proof shell " and " explosion-proof composition surface width " often can not determine well.
Summary of the invention
Fundamental purpose of the present invention is to overcome above-mentioned shortcoming, and a kind of propagation of explosion test unit that volume is tested less than " maximum safety test gap " and the parameters such as " explosion-proof composition surface width " of flame-proof type explosion-proof shell below 20 cubic centimetres is provided.
For realizing above-mentioned purpose, equipment for small scale booster test of the present invention is used to test explosion-proof parameter, this small-scale test propagation of explosion device be included in a metal test outward be provided with in the cavity one independently in the test cavity, this metal is tested cavity and the independently interior test shared base of cavity and outside by a stop valve connection outward, interior test cavity loam cake places for being threaded in the outer test cavity, uses the connection of metal sintering type breathing equipment between this inside and outside test cavity.
This metal test outward cavity and independently in test feed explosive mixed gas simultaneously in the cavity and when interior test cavity is lighted, screw thread or the metal sintering type breathing equipment of blast by interior test cavity loam cake can transmit and cause outer test cavity, by exploding interior, in determining, tests whether propagation of explosion between the outer test cavity the explosion-proof parameter of screw thread " maximum safety clearance " and " explosion-proof composition surface width " above the cavity loam cake, simultaneously also can be by blast interior, in determining, tests whether propagation of explosion between the outer test cavity explosion-proof parameter " thickness of sintering metal " and " voidage " of the metal sintering type breathing equipment above the cavity loam cake, this metal is tested outward between cavity and the independently interior test cavity and is connected by stop valve, stop valve turn-offs when survey is quick-fried, by interior, the pressure of the pressure transducer of outer test cavity changes and judges whether propagation of explosion.
Above-mentioned metal is tested outward between cavity and the independently interior test cavity and is connected by stop valve, and stop valve turn-offs when survey is quick-fried.
Above-mentioned metal test outward cavity and independently in the test cavity cavity in the electronic ignition electrode all is housed.
Beneficial effect: equipment for small scale booster test of the present invention, by testing outside an independently small test cavity is set in the cavity, the shared base of two cavitys, the air inlet of two cavitys, be connected in series by stop valve in the middle of the escape pipe, the stop valve both sides connect the explosion pressure that pressure transducer is used to measure two cavitys respectively, when inside and outside test cavity feeds explosive mixed gas, in interior test cavity igniting, detonation propagation can not satisfy requirement of explosion proof to the explosion-proof parameter of the bright interior test cavity of outer test cavity body surface, testing experiment repeatedly by this device can obtain flame-proof type explosion-proof technical parameter under the little volume as " maximum safety clearance ", " voidage " and " thickness " of " explosion-proof composition surface width " or slug type limit burner, this equipment for small scale booster test can be by mixing the test of propagation of explosion repeatedly of test gas to difference, further obtain explosion-proof parameter under the little volume to improve national standard.
For making things convenient for the auditor can further understand the present invention is technology, means and the effect that the goal of the invention that reaches predetermined is taked, see also following about detailed description of the present invention and accompanying drawing, only for reference and the explanation usefulness of the following drawings is not to be used for the present invention is limited.
Description of drawings
Fig. 1, carry out testing principle figure for maximum safety clearance, the explosion-proof composition surface of double thread of the present invention and explosion-proof composition surface width;
Fig. 2, the voidage and the thickness of the flame-proof type limit burner of slug type limit burner is carried out the proving installation schematic diagram for the present invention.
Embodiment
Please refer to illustrated in figures 1 and 2 below, equipment for small scale booster test of the present invention is used to test explosion-proof parameter, this small-scale test propagation of explosion device be included in a metal test outward be provided with in the cavity 1 one independently in the test cavity 2, this metal is tested cavity 1 and independently interior test cavity 2 shared bases 7 and outside by 12 connections of a stop valve outward, interior test cavity 2 loam cakes place for being threaded in the outer test cavity 1, in being somebody's turn to do, use metal sintering type breathing equipment to connect between the outer test cavity 1, this metal shell is a stainless steel metal in this real example, influences the result of test to prevent metal shell from getting rusty.
This metal test outward cavity 1 and independently in test feed explosive mixed gas simultaneously in the cavity 2 and when interior test cavity 2 is lighted, screw thread or the metal sintering type breathing equipment of blast by interior test cavity 2 loam cakes can transmit and cause outer test cavity 1, by exploding interior, in determining, tests whether propagation of explosion between the outer test cavity 1 the explosion-proof parameter of screw thread " maximum safety clearance " and " explosion-proof composition surface width " above cavity 2 loam cakes, simultaneously also can be by blast interior, in determining, tests whether propagation of explosion between the outer test cavity 1 explosion-proof parameter " thickness of sintering metal " and " voidage " of the metal sintering type breathing equipment above cavity 2 loam cakes, this metal is tested outward between cavity 1 and the independently interior test cavity 2 and is connected by stop valve 12, stop valve 12 turn-offs when survey is quick-fried, by interior, the pressure of the pressure transducer of outer test cavity 1 changes and judges whether propagation of explosion, usually, metal is tested outward between cavity 1 and the independently interior test cavity 2 and is connected by stop valve 12, stop valve 12 turn-offs when quick-fried surveying, outside metal, test cavity 1 and independently in test in the cavity of cavity 2 electronic ignition electrode 13 all be housed.
The concrete technical scheme that its technical matters that the present invention solves adopts is as follows:
The interior test cavity 2 of a relatively independent little volume is set in having the outer test cavity 1 of certain carrying explosion pressure, should interiorly test cavity 2 volumes less than 20 cubic centimetres, inside and outside volumetric ratio is less than 1/10, all setting is advanced/venthole and electronic ignition device 9 in interior test cavity 2 and 1 two tests of outer test cavity cavity, two shared bases of test cavity, two loam cakes are with being threaded, please refer to Fig. 1 or shown in Figure 2, in this test cavity 2 and test outward between 1 two tests of cavity cavity by explosion-proof composition surface shown in Figure 1 and shown in slug type limit burner transmit flame.When feeding explosive mixed gas in inside and outside two test cavitys, igniting forms blast interior test cavity 2 in, and blast will be transmitted the road by above-mentioned flame and be tested cavity 1 test cavity 1 mixed gas outside causing and explode through passing to outside.When testing cavity 1 outside 2 blasts of test cavity can not passed in the parameter that changes flame transmission road warp (gap on explosion-proof composition surface, length or slug type limit burner voidage, thickness) makes, explosion-proof composition surface and slug type limit burner can satisfy requirement of explosion proof.For test cavity 2 in confirming satisfies the blast requirement, test cavity 1 outward and after test, also light a fire.By the propagation of explosion test of repeated multiple times, can record " maximum safety clearance ", " the explosion-proof composition surface width " of explosion-proof parameter under the little volume.
Please refer to shown in Figure 1, outer test cavity 1 draft tube connects outer test cavity gas admittance valve 8, outer test cavity 1 escape pipe connects pressure transducer 11, tests cavity 1 spark electrode 13 outward and passes base 7 in outer test cavity 1 through lead connection electronic ignition device 9 by watering envelope.Test cavity air outlet valve 10 in interior test cavity 2 escape pipes connect, interior test cavity 2 draft tube connection pressure transducer 11, interior test cavity spark electrode 13 connect electronic ignition device 9 through lead and pass base in interior test cavity 2 by watering envelope.Test cavity 2 in interior test cavity loam cake 5 is connected to form with whorl of base.Outer test cavity loam cake 4 is connected to form outer test cavity 1 with whorl of base, and the detonation propagation path of inside and outside test cavity 1 is the explosion-proof composition surface of screw thread of desire test.The meshing gap that test cavity loam cake 5 is connected with whorl of base in changing, meshing button number from propagation of explosion to each test all not propagation of explosion determine flame-proof explosion-proof parameter " maximum safety clearance ", " explosion-proof composition surface width " under the little volume, inside and outside test cavity 1 volumetric ratio is less than 1/10.
Please continue again with reference to shown in Figure 2, outer test cavity 1 draft tube connects outer test cavity gas admittance valve 8, outer test cavity 1 escape pipe connects pressure transducer 11, tests cavity 1 spark electrode 13 outward and passes base in outer test cavity 1 through lead connection electronic ignition device 9 by watering envelope.Test cavity air outlet valve 10 in interior test cavity 2 escape pipes connect, interior test cavity 2 draft tube connection pressure transducer 11, interior test cavity spark electrode 13 connect electronic ignition device 9 through lead and pass base in interior test cavity 2 by watering envelope.Test cavity 2 in interior test cavity loam cake 5 is connected to form with whorl of base.Outer test cavity loam cake 4 is connected to form outer test cavity 1 with whorl of base, and the detonation propagation path of inside and outside test cavity 1 is the slug type limit burner of desire test.The meshing button number of connecting thread between interior test cavity 2 loam cakes and the base should be greater than six buttons.Test cavity loam cake 5 and base metal sintering type limit burner thickness, voidage in changing, from propagation of explosion to each test all not propagation of explosion determine flame-proof explosion-proof parameter under the little volume, inside and outside test cavity 1 volumetric ratio is less than 1/10.
Please refer to illustrated in figures 1 and 2, explosive mixed gas (as methane/air, acetylene/air, hydrogen/air etc.) enters outer test cavity 1 through advancing device valve 8, in entering, tests by stop valve 12 cavity 2 again, flow out through interior test cavity air outlet valve 10 again, close into device valve 8, air outlet valve 10, stop valve 12 after concentration reaches test request after ventilation a period of time, test cavity spark electrode 13 igniting in making by electronic ignition device 9.Test cavity 2 explosion pressures in testing out by pressure transducer 11 are controlled electronic ignition device 9 at last and are made 13 igniting of outer test cavity 1 spark electrode to verify whether explosive mixed gas satisfies the blast requirement.
Claims (3)
1. equipment for small scale booster test, be used to test the explosion-proof parameter of hazardous gas container, it is characterized in that: this small-scale test propagation of explosion device be included in a metal test outward be provided with in the cavity one independently in the test cavity, this metal is tested cavity and the independently interior test shared base of cavity and outside by a stop valve connection outward, interior test cavity loam cake places for being threaded in the outer test cavity, uses the connection of metal sintering type breathing equipment between this inside and outside test cavity.
2. equipment for small scale booster test according to claim 1 is characterized in that: this metal is tested outward between cavity and the independently interior test cavity and is connected by stop valve, and stop valve turn-offs when survey is quick-fried.
3. equipment for small scale booster test according to claim 1 is characterized in that: this metal test outward cavity and independently in the test cavity cavity in the electronic ignition electrode all is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910190394.0A CN101776529B (en) | 2009-09-23 | 2009-09-23 | Equipment for small scale booster test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910190394.0A CN101776529B (en) | 2009-09-23 | 2009-09-23 | Equipment for small scale booster test |
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| Publication Number | Publication Date |
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| CN101776529A true CN101776529A (en) | 2010-07-14 |
| CN101776529B CN101776529B (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910190394.0A Expired - Fee Related CN101776529B (en) | 2009-09-23 | 2009-09-23 | Equipment for small scale booster test |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768105A (en) * | 2012-07-27 | 2012-11-07 | 公安部第一研究所 | System and method for evaluating use safety of anti-explosion container |
| CN104698121A (en) * | 2015-02-03 | 2015-06-10 | 北京理工大学 | Deflagration to detonation experimental device for gas in microscale pipeline |
| CN107271158A (en) * | 2017-05-25 | 2017-10-20 | 中海油天津化工研究设计院有限公司 | A kind of special blow-cook explosive test tank |
| CN113588712A (en) * | 2021-07-05 | 2021-11-02 | 宜兴市中电耐磨耐火科技有限公司 | Anti-cracking experiment system and method for castable for waste incineration |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2659235A (en) * | 1952-02-16 | 1953-11-17 | Janke And Company | Explosive atmosphere test chamber |
| JPH09292314A (en) * | 1996-04-26 | 1997-11-11 | Shimadzu Corp | Liquid-fuel injecting mechanism |
| CN101013066A (en) * | 2006-11-27 | 2007-08-08 | 联合汽车电子有限公司 | Explosion-proof high-low-temperature test chamber |
| CN201096853Y (en) * | 2007-11-06 | 2008-08-06 | 铜陵江威电子有限责任公司 | Testing device for capacitor explosion-proof end cover |
| CN201548217U (en) * | 2009-09-23 | 2010-08-11 | 深圳市锦铭科技有限公司 | Small explosion transfer test device |
-
2009
- 2009-09-23 CN CN200910190394.0A patent/CN101776529B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2659235A (en) * | 1952-02-16 | 1953-11-17 | Janke And Company | Explosive atmosphere test chamber |
| JPH09292314A (en) * | 1996-04-26 | 1997-11-11 | Shimadzu Corp | Liquid-fuel injecting mechanism |
| CN101013066A (en) * | 2006-11-27 | 2007-08-08 | 联合汽车电子有限公司 | Explosion-proof high-low-temperature test chamber |
| CN201096853Y (en) * | 2007-11-06 | 2008-08-06 | 铜陵江威电子有限责任公司 | Testing device for capacitor explosion-proof end cover |
| CN201548217U (en) * | 2009-09-23 | 2010-08-11 | 深圳市锦铭科技有限公司 | Small explosion transfer test device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768105A (en) * | 2012-07-27 | 2012-11-07 | 公安部第一研究所 | System and method for evaluating use safety of anti-explosion container |
| CN102768105B (en) * | 2012-07-27 | 2014-12-10 | 公安部第一研究所 | System and method for evaluating use safety of anti-explosion container |
| CN104698121A (en) * | 2015-02-03 | 2015-06-10 | 北京理工大学 | Deflagration to detonation experimental device for gas in microscale pipeline |
| CN107271158A (en) * | 2017-05-25 | 2017-10-20 | 中海油天津化工研究设计院有限公司 | A kind of special blow-cook explosive test tank |
| CN113588712A (en) * | 2021-07-05 | 2021-11-02 | 宜兴市中电耐磨耐火科技有限公司 | Anti-cracking experiment system and method for castable for waste incineration |
| CN113588712B (en) * | 2021-07-05 | 2022-06-24 | 宜兴市中电耐磨耐火科技有限公司 | Anti-cracking experiment system and method for castable for waste incineration |
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| Publication number | Publication date |
|---|---|
| CN101776529B (en) | 2014-09-17 |
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Granted publication date: 20140917 |