CN105352825A - Test device for closed tank dynamic response under action of combustible gas explosion - Google Patents
Test device for closed tank dynamic response under action of combustible gas explosion Download PDFInfo
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- CN105352825A CN105352825A CN201510848898.2A CN201510848898A CN105352825A CN 105352825 A CN105352825 A CN 105352825A CN 201510848898 A CN201510848898 A CN 201510848898A CN 105352825 A CN105352825 A CN 105352825A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/313—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by explosives
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Abstract
The invention discloses a test device for closed tank dynamic response under the action of combustible gas explosion. The test device comprises a tank body (1), an ignition head (4), a gas source, pressure sensors (6), an infrared ray gas analyzer (18) and an anti-explosion vortex fan (12), wherein the tank body (1) is fixed to a concrete floor (8) through anchor rods (15), the ignition head (4) is arranged in the tank body (1), the gas source is communicated with the inside of the tank body (1) through a gas pipeline, the pressure sensors (6) are arranged on the inner wall of the tank body (1), a probe of the infrared ray gas analyzer (18) stretches into the tank body (1), and the anti-explosion vortex fan (12) is communicated with the inside of the tank body (1) through a gas inlet (13) and a gas outlet (14) in the wall of the tank body (1). The test device is capable of accurately measuring closed tank dynamic response under the action of combustible gas explosion and providing accurate test data for studying the damage mechanism of closed tank such as an oil storage tank and a gas storage tank on the conditions of a gas inner explosion pressure field and inner explosion.
Description
Technical field
The invention belongs to chemical industry facility knock test equipment technical field, particularly the vapor tight tank flammable gas explosion bridge response to forced vibration device of the dynamic response of a kind of energy Measurement accuracy vapor tight tank under flammable gas explosion effect.
Background technology
Vapor tight tank, as storage tank, gas-holder, is widely used in strategic energy reserves base, stores the energetic material that oil, rock gas etc. are inflammable and explosive.The goods and materials such as oil, rock gas very easily produce explosion accident in storing process, cause serious threat to people's security of the lives and property.
Studying the antiknock of oil storage (gas) vapor tight tank in prior art, is all outer quick-fried for background with gas.For the research of inflammable gas in the implode of oil storage (gas) tank, mainly based on equivalent TNT method, carry out the assessment of explosion effect.Under seldom systematically studying inflammable gas implode condition, the failure mechanism of oil storage (gas) tank and the Evolution of internal explosion load.In recent years, the sharp increase used along with oil and natural gas, the research carrying out the dynamic response of oil storage (gas) tank under flammable gas explosion effect is extremely more urgent, has very important theory significance and actual application value.
In test unit at present to the anti-flammable gas explosion of test structure, container is evacuated by majority, use air chest to realize the mixing of inflammable gas, or provided with fan realizes the mixing of gas in container.For first method, the leakproofness process of air chest and container is used will greatly to increase test unit cost; And internal tank state will be changed and actual conditions are not inconsistent arranging fan.
Therefore, prior art Problems existing is: vapor tight tank inflammable gas implode test unit, due to the mixing of inflammable gas can not be realized easy, exactly, reach desirable state of detonating, thus cannot dynamic response under the effect of Measurement accuracy vapor tight tank flammable gas explosion.
Summary of the invention
The object of the present invention is to provide a kind of vapor tight tank flammable gas explosion bridge response to forced vibration device, the dynamic response of energy Measurement accuracy vapor tight tank under flammable gas explosion effect, under learning gas implode pressure field and implode condition, oil storage (gas) tank failure mechanism provides test figure accurately.
The technical solution realizing the object of the invention is: a kind of vapor tight tank flammable gas explosion bridge response to forced vibration device, comprise to be fixed on the tank body on concrete floor by anchor pole, the igniter head be arranged in tank body, the source of the gas, the pressure transducer being located at inner tank wall and the probe that are communicated with tank interior by gas piping stretch into infrared ray gas analyzer in tank body, also comprise explosion-proof whirlpool blower fan, described explosion-proof whirlpool blower fan communicates with tank interior respectively by the air intake opening be located on tank wall, gas outlet.
Compared with prior art, its remarkable advantage is in the present invention:
1. cost is low, realizes simple.The external explosion-proof whirlpool blower fan that the present invention proposes carries out inflammable gas mixing, only needs to rely on cheap apparatus and provides external power, realize the flowing of gas in tank, reach the uniform object of gas and vapor permeation.
2. precision is high, gas concentration precise control.The present invention proposes to use infrared ray gas analyzer to monitor in real time gas concentration in tank, can accurately measure combustable gas concentration in tank, reduces because concentration controls the test error that causes; External fan can not change vapor tight tank internal state simultaneously, and measurement result is conformed to actual conditions, improves measuring accuracy.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of vapor tight tank flammable gas explosion bridge response to forced vibration device of the present invention.
Fig. 2 is the vertical view of Fig. 1.
In figure, 1. tank body, 101. sidewalls, 2. top board weld seam, 3. top board, 4. igniter head, 5. finer wire, 6. pressure transducer, 7. base plate, 71. boltholes, 8. concrete floor, 9. fuel gas bottle group, 10. reduction valve, 11. gas admittance valves, 12. explosion-proof whirlpool blower fans, 13. air intake openings, 14. gas outlets, 15. anchor poles, 16. gas concentration monitoring mouths, 17. infrared ray gas analyzer probes, 18. infrared ray gas analyzers, 19. high-speed cameras
Embodiment
As shown in Figure 1, vapor tight tank flammable gas explosion bridge response to forced vibration device of the present invention, comprise and to be fixed on the tank body 1 on concrete floor 8, the igniter head 4 be arranged in tank body 1, the source of the gas, the pressure transducer 6 being located at tank body 1 inwall that are communicated with tank body 1 inside by gas piping and the infrared ray gas analyzer 18 stretched in tank body 1 of popping one's head in by anchor pole 15, also comprise explosion-proof whirlpool blower fan 12, described explosion-proof whirlpool blower fan 12 communicates with tank body 1 inside respectively by the air intake opening 13 be located on tank body 1 wall, gas outlet 14.
External explosion-proof whirlpool blower fan can realize the Homogeneous phase mixing of gas, greatly reduces experimentation cost.Internal tank state can not be changed simultaneously, measurement result is conformed to actual conditions, improve measuring accuracy.
The air outlet of described explosion-proof whirlpool blower fan 12 is connected with the air intake opening 13 be located on tank body 1 wall by airduct, and its air inlet is connected with the gas outlet 14 on tank body 1 wall by airduct.
The tank body 1 of described vapor tight tank comprise cylindrical lateral wall 101, with the airtight top board 3 welded in described sidewall 101 upper end and the base plate 7 welded with described sidewall 101 lower end, described base plate 7 excircle is greater than the excircle of sidewall 101, the excircle being greater than sidewall 101 is provided with the bolthole 72 passed for anchor pole 15 body of rod at described base plate 7.
High-speed camera 19 is provided with outside tank body 1.
Described pressure transducer 6 carries water-cooling system and optical filtering diaphragm.
Described source of the gas comprises fuel gas bottle group 9, reduction valve 10 and the gas admittance valve 11 of being connected successively by gas piping, and gas admittance valve 11 is communicated with tank body 1 inside by gas piping.
Finer wire 5 can be installed in inner tank wall any position, described igniter head 4 can colligation on finer wire 5, thus can the position of specified point duration and degree of heating 4 arbitrarily.
Test unit operation steps of the present invention is specially:
1, lift vapor tight tank tank body 1 to concrete floor 8, it is firm that anchor pole 15 is fixed through of reservoir hydrocarbon tank bottom 7.2, by finer wire 5 at assigned address mounting points duration and degree of heating 4;
3, top board 3 and vapor tight tank tank body 1 are welded into entirety;
4, open reduction valve 10, in vapor tight tank, be filled with inflammable gas from fuel gas bottle group 9 by gas admittance valve 11;
5, use concentration in infrared ray gas analyzer 18 pairs of tanks to carry out Real-Time Monitoring, open explosion-proof whirlpool blower fan 12 simultaneously, gas in tank is fully mixed, make in tank that concentration is identical everywhere;
6, when concentration reaches appointment numerical value, stop inflating and closing explosion-proof whirlpool blower fan 12, close air intake opening 13, gas outlet 14, gas concentration monitoring mouth 16, leave standstill after 30 seconds, flashpoint duration and degree of heating 4, record explosion pressure by pressure transducer 6, take by high-speed camera 19 overall process that vapor tight tank breaks, top board 3 disperses.
Adopt vapor tight tank flammable gas explosion bridge response to forced vibration device of the present invention, the bridge response to forced vibration of vapor tight tank under flammable gas explosion effect can be carried out smoothly, the data such as oil storage (gas) the tank capability of antidetonance, failure mode are provided for scientific algorithm and engineering design.Further, the pressure transducer of water-cooling system and optical filtering diaphragm is with can be recorded to pressure data more accurately; External explosion-proof whirlpool blower fan can realize the Homogeneous phase mixing of gas, greatly reduces experimentation cost; Pressure transducer with water-cooling system and optical filtering diaphragm can be recorded to pressure data more accurately; High-speed camera function captures the overall process that tank body destroys, top cover disperses.
Claims (7)
1. a vapor tight tank flammable gas explosion bridge response to forced vibration device, it is characterized in that: comprise the tank body (1) be fixed on by anchor pole (15) on concrete floor (8), be arranged on the igniter head (4) in tank body (1), by the source of the gas that gas piping communicates with tank body (1) inside, be located at the pressure transducer (6) of tank body (1) inwall and probe and stretch into infrared ray gas analyzer (18) in tank body (1), also comprise explosion-proof whirlpool blower fan (12), described explosion-proof whirlpool blower fan (12) is respectively by the air intake opening (13) be located on tank body (1) wall, gas outlet (14) communicates with tank body (1) inside.
2. test unit according to claim 1, is characterized in that: the air outlet of described explosion-proof whirlpool blower fan (12) is connected with air intake opening (13) by airduct, and its air inlet is connected with gas outlet (14) by airduct.
3. test unit according to claim 1 and 2, it is characterized in that: the tank body (1) of described vapor tight tank comprise cylindrical lateral wall (101), with the airtight top board (3) that welds in described sidewall (101) upper end and the base plate (7) that weld airtight with described sidewall (101) lower end, described base plate (7) excircle is greater than the excircle of sidewall (101), the excircle being greater than sidewall (101) is provided with the hole (71) passed for anchor pole (15) body of rod at described base plate (7).
4. test unit according to claim 1 and 2, is characterized in that: the cable of firing point duration and degree of heating (4) enters tank interior through gas concentration monitoring mouth (16).
5. test unit according to claim 1 and 2, is characterized in that: outside tank body (1), be provided with high-speed camera (19).
6. test unit according to claim 1 and 2, is characterized in that: described pressure transducer (6) carries water-cooling system and optical filtering diaphragm.
7. test unit according to claim 1 and 2, it is characterized in that: described source of the gas comprises fuel gas bottle group (9), reduction valve (10) and the gas admittance valve (11) of being connected successively by gas piping, and gas admittance valve (11) is communicated with tank body (1) inside by gas piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510848898.2A CN105352825A (en) | 2015-11-27 | 2015-11-27 | Test device for closed tank dynamic response under action of combustible gas explosion |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510848898.2A CN105352825A (en) | 2015-11-27 | 2015-11-27 | Test device for closed tank dynamic response under action of combustible gas explosion |
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| CN105352825A true CN105352825A (en) | 2016-02-24 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290020A (en) * | 2016-11-05 | 2017-01-04 | 东北石油大学 | Storage tank implosion multi-scenarios method experiment test device |
| CN107478524A (en) * | 2017-09-21 | 2017-12-15 | 武汉科技大学 | The experimental provision and its method that simulation oil storage tank responds under Blast Load effect |
| CN109030245A (en) * | 2018-09-28 | 2018-12-18 | 中国人民武装警察部队学院 | Oil storage tank experiment porch and its control method |
| CN109540707A (en) * | 2019-01-14 | 2019-03-29 | 中国地质大学（武汉） | The pilot system and method for simulating contact explosion time combustion gas test pipe anti-knock properties |
| CN115980128A (en) * | 2022-12-29 | 2023-04-18 | 中国人民解放军陆军工程大学 | Overpressure load test system for secondary gas cloud explosion of LPG storage tank |
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2015
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106290020A (en) * | 2016-11-05 | 2017-01-04 | 东北石油大学 | Storage tank implosion multi-scenarios method experiment test device |
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| CN109540707A (en) * | 2019-01-14 | 2019-03-29 | 中国地质大学（武汉） | The pilot system and method for simulating contact explosion time combustion gas test pipe anti-knock properties |
| CN115980128A (en) * | 2022-12-29 | 2023-04-18 | 中国人民解放军陆军工程大学 | Overpressure load test system for secondary gas cloud explosion of LPG storage tank |
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Application publication date: 20160224 |