CN205067404U - Combustible gas opens wide space explosion test device - Google Patents
Combustible gas opens wide space explosion test device Download PDFInfo
- Publication number
- CN205067404U CN205067404U CN201520762724.XU CN201520762724U CN205067404U CN 205067404 U CN205067404 U CN 205067404U CN 201520762724 U CN201520762724 U CN 201520762724U CN 205067404 U CN205067404 U CN 205067404U
- Authority
- CN
- China
- Prior art keywords
- explosion
- steel tube
- film
- stainless
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model discloses a combustible gas opens wide space explosion test device, but include gas bottle group (6), pressure sensor (7), infrared gas analyzer (14), data collection station (8), explosion -proof fan (10) and some duration and degree of heating (3), still set up in subaerial stainless steel tube frame (2) including fixed stainless steel tube frame (2) top surface and pasting all around apply film (4) and with the ground face seal film (4) outside is hugged closely there is the heating wire (17). Adopt the utility model discloses an explosion test device can realize opening wide the combustible gas explosion test of multiple operating mode under the space, and the test result is accurate reliable, provides the pressure parameter that combustible gas explodes with engineering design for the scientific calculation.
Description
Technical field
The utility model belongs to gas burst mechanical test research equipment technical field, particularly a kind of test unit that accurately and reliably can realize the flammable gas explosion of various working under wide open space.
Background technology
Along with the further in-depth of national energy strategic plan, the deposit of the oil gas energy and consume day by day huge, is all faced with many security challenges in the links such as the storage of oil gas, transport and use.Oil and gas leakage blast, as the higher a kind of accident form of occurrence frequency, causes people and more and more pays close attention to.The blast of inflammable gas in wide open space becomes the important content of gas burst research.It is more and more tightr that productive life along with the oil gas energy and people contacts, and seems important all the more for inflammable gas in the research that wide open space explodes.
The test unit that existing inflammable gas explodes at wide open space is as document [Cong Lixin, Bi Mingshu, Xiao Chuanbing. hemisphere bar grid-type barrier is on the impact [J] of flammable vapor cloud detonation pressure ripple. coal journal, 2007,32 (5): 509-512.], described in, during test (as Fig. 1), inflammable gas is filled with from air supply system to airbag, light gas by firing system, the superpressure that gas burst produces is recorded on computer by data acquisition system (DAS).Due to the existence of airbag, the superpressure that blast produces, sufficiently greatly to breaking through airbag, could outwards be propagated.Therefore, if the rate of pressure rise of gas burst is less, will need longer time rupture of membranes, this and desirable wide open space gas explosion process have very large different.So this test unit is lower to activity, the impact of the small volume flammable gas explosion result that burning rate is less clearly, thus makes result distortion.Secondly in the preparatory stage of test, the sealing of gas can be subject to the severe jamming in testing equipment moving process; And the test unit being retained in gas interior also can affect test findings to a certain extent.On the other hand, flammable gas explosion produce high temperature and high light also can impact the accuracy of sensor.
Therefore, there is obvious problem and be in prior art: activity is lower, and the small volume flammable gas explosion test unit that burning rate is less is unreasonable, and is subject to external interference, therefore causes result distortion.
Summary of the invention
The purpose of this utility model is to provide a kind of inflammable gas wide open space explosion testing device, accurately and reliably can realize the test unit of the flammable gas explosion of various working under wide open space
The technical solution realizing the utility model object is: a kind of inflammable gas wide open space explosion testing device, comprise flammable gas cylinder group, pressure transducer, infrared ray gas analyzer, data acquisition unit, explosion-proof fan and igniter head, also comprise and be fixedly installed on ground stainless-steel tube framework, stick film at described stainless-steel tube framework end face and surrounding and seal with ground, being glued with heating wire at described film outside.
The utility model compared with prior art, its remarkable advantage:
1, the flammable gas explosion test of various working under wide open space can be realized:
2, test findings accurately and reliably: film can melt by heating wire before ignition, cover plate, blower fan and the plastic plate for fixed film, can ensure in whole test set-up procedure, test air bag sealing and blast occur time, gas interior is without any test unit; Pressure transducer with water-cooling system and optical filtering diaphragm can be recorded to pressure data more accurately; Therefore, test parameters accurately and reliably.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the test unit schematic diagram that existing inflammable gas explodes at wide open space.
Fig. 2 is the utility model inflammable gas wide open space explosion testing device schematic diagram.
Fig. 3 is the detailed schematic of stainless-steel tube frame joint place, film and plastic plate.
Fig. 4 is the relative position schematic diagram of blower fan and cover plate.
Fig. 5 is the detailed schematic of heating wire on air bag.
In Fig. 2-5,1. high-speed camera, 2. stainless-steel tube framework, 3. igniter head, 4. film, 5. reduction valve, 6. fuel gas bottle group, 7. ground pressure transducer, 8. data acquisition unit, 9. computer, 10. explosion-proof fan, 11. cover plates, 12. igniter head tethers, 13. plastic plates, 14. infrared ray gas analyzers, 15. infrared ray gas analyzer probes, 16. draft tube, 17. heating wire.
Embodiment
As shown in Figure 1, 2, the utility model inflammable gas wide open space explosion testing device, comprise flammable gas cylinder group 6, pressure transducer 7, infrared ray gas analyzer 14, data acquisition unit 8, explosion-proof fan 10 and igniter head 3, it is characterized in that: also comprise and be fixedly installed on ground stainless-steel tube framework 2, stick film 4 at described stainless-steel tube framework 2 end face and surrounding and seal with ground, outside described film 4, being glued with heating wire 17.
Also comprise the high-speed camera 1 that camera lens is arranged facing to stainless-steel tube framework 2.So that the evolution of test Flame can be captured
Ground in described stainless-steel tube framework 2 is provided with the trench 18 placing explosion-proof fan 10, described trench is provided with and can covers described explosion-proof fan 10 and the cover plate 11 that can move horizontally.Thus ensure that explosion-proof fan 10 does not need to shift out stainless-steel tube framework 2 and safety.
Also comprise igniter head tether 12, described igniter head 3 is fixed in the centre of duration and degree of heating tether 12, and the two ends of described igniter head tether 12 are separately fixed at being positioned on the column at diagonal angle for a pair of described stainless-steel tube framework 2.
For ensureing the impermeability of air bag, also ensure that explosion time film 4 can not lift gas leakage outward, is provided with the pressing plate 13 for pushing down film 4 lower end at described stainless-steel tube framework 2 and the periphery of earth surface simultaneously.Thus the press-in pressing plate 13 times that the film 4 of additional length can be turned up,
Described pressure transducer 7 carries water-cooling system and optical filtering diaphragm.Pressure data can be recorded to more accurately.
Described film 4 is the polyethylene film of thickness 0.015mm.So that film is reduced to minimum on the impact that explosive flame develops.
Consider and need film to be reduced to minimum on the impact that explosive flame develops, have employed the material of polyethylene film as air bag of the thinnest (0.015mm).
The probe 15 of infrared ray gas analyzer is stretched into inside air bag through polyethylene film 4, Real-Time Monitoring is carried out to gas concentration, gas density can be ensured accurately and reliably.After reaching prescribed concentration, stop inflation, close explosion-proof fan 10, promote cover plate 11 and cover explosion-proof fan 10, slowly withdraw from the probe 15 of infrared ray gas analyzer.Therefore in whole test set-up procedure, air bag is in sealing state always, and when well ensure that igniting, gas concentration is accurate.
Before igniting, electrified regulation heating wire 17, after polyethylene film 4 melts, flashpoint duration and degree of heating 3.
Being pressed into plastic plate 13 times by being turned up by the polyethylene film 4 of additional length, ensureing the impermeability of air bag.Also ensure that explosion time polyethylene film 4 can not lift gas leakage outward simultaneously.
Different gas volumes is obtained by the size changing stainless-steel tube framework 2.
On stainless-steel tube framework 2, any position can colligation igniter head tether 12, thus can the position of specified point duration and degree of heating 3 arbitrarily.
The utility model test unit operation steps is specially:
1, the stainless-steel tube framework 2 put up is fixed on the ground;
2, colligation igniter head tether 12 on the column at stainless-steel tube framework 2 diagonal angle, mounting points duration and degree of heating 3 on igniter head tether;
3, polyethylene film 4 is attached on stainless-steel tube framework 2;
3, turn up the polyethylene film 4 of additional length press-in plastic plate 13 times;
4, open reduction valve 5, in air bag 4, be filled with inflammable gas from fuel gas bottle group 6 by draft tube 16;
5, the probe 15 of infrared ray gas analyzer is stretched in air bag through polyethylene film 16, Real-Time Monitoring is carried out to indoor concentration, opens explosion-proof fan 10 simultaneously, mixed gas in air bag is mixed;
6, when concentration reaches appointment numerical value, close reduction valve 5 and explosion-proof fan 10, promote cover plate 11 and cover explosion-proof fan 10, withdraw from the probe 15 of infrared ray gas analyzer;
7, leave standstill after 30 seconds, electrified regulation heating wire 17, after polyethylene film 4 melts, flashpoint duration and degree of heating 3, records explosion pressure by pressure transducer 7, is taken the evolution of flame by high-speed camera 1.
Adopt explosion testing device of the present utility model, realize the flammable gas explosion test of the various working under wide open space, for scientific algorithm and engineer applied provide the pressure parameter of flammable gas explosion.Further, iron plate, blower fan and the plastic plate for fixed film, can ensure in whole test set-up procedure, the positive confinement of test air bag; Pressure transducer with water-cooling system and optical filtering diaphragm can be recorded to pressure data more accurately; High-speed camera function captures the evolution of test Flame.
Claims (7)
1. an inflammable gas wide open space explosion testing device, comprise flammable gas cylinder group (6), pressure transducer (7), data acquisition unit (8), infrared ray gas analyzer (14), explosion-proof fan (10) and igniter head (3), it is characterized in that: also comprise and be fixedly installed on ground stainless-steel tube framework (2), stick film (4) at described stainless-steel tube framework (2) end face and surrounding and seal with ground, being glued with heating wire (17) in described film (4) outside.
2. test unit according to claim 1, is characterized in that: also comprise the high-speed camera (1) that camera lens is arranged facing to stainless-steel tube framework (2).
3. test unit according to claim 1 and 2, it is characterized in that: the ground in described stainless-steel tube framework (2) is provided with the trench (18) placing explosion-proof fan (10), described trench is provided with and can covers described explosion-proof fan (10) and the cover plate (11) that can move horizontally.
4. test unit according to claim 1 and 2, it is characterized in that: also comprise igniter head tether (12), described igniter head (3) is fixed in the centre of igniter head tether (12), and the two ends of described igniter head tether (12) are separately fixed at being positioned on the column at diagonal angle for a pair of described stainless-steel tube framework (2).
5. test unit according to claim 1 and 2, is characterized in that: be provided with the pressing plate (13) for pushing down film (4) lower end described stainless-steel tube framework (2) and the periphery of earth surface.
6. test unit according to claim 1 and 2, is characterized in that: described pressure transducer (7) carries water-cooling system and optical filtering diaphragm.
7. test unit according to claim 1 and 2, is characterized in that: the polyethylene film that described film (4) is thickness 0.015mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520762724.XU CN205067404U (en) | 2015-09-29 | 2015-09-29 | Combustible gas opens wide space explosion test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520762724.XU CN205067404U (en) | 2015-09-29 | 2015-09-29 | Combustible gas opens wide space explosion test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205067404U true CN205067404U (en) | 2016-03-02 |
Family
ID=55393941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520762724.XU Active CN205067404U (en) | 2015-09-29 | 2015-09-29 | Combustible gas opens wide space explosion test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205067404U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181746A (en) * | 2015-09-29 | 2015-12-23 | 中国人民解放军理工大学 | Device for combustible gas explosion test in open space |
| CN106324033A (en) * | 2016-08-16 | 2017-01-11 | 西安近代化学研究所 | Visualized explosive cooking-off and gas product analysis device |
| CN107271635A (en) * | 2017-06-30 | 2017-10-20 | 中国石油天然气股份有限公司西部管道分公司 | A kind of method of testing of the three-dimensional Overpressure Field of open space large scale flammable vapor cloud explosion |
| CN109613205A (en) * | 2019-01-24 | 2019-04-12 | 南京工业大学 | Deflagration flame and pressure coupling test method and test system for premixed gas clouds in open space with different humidities |
-
2015
- 2015-09-29 CN CN201520762724.XU patent/CN205067404U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181746A (en) * | 2015-09-29 | 2015-12-23 | 中国人民解放军理工大学 | Device for combustible gas explosion test in open space |
| CN106324033A (en) * | 2016-08-16 | 2017-01-11 | 西安近代化学研究所 | Visualized explosive cooking-off and gas product analysis device |
| CN107271635A (en) * | 2017-06-30 | 2017-10-20 | 中国石油天然气股份有限公司西部管道分公司 | A kind of method of testing of the three-dimensional Overpressure Field of open space large scale flammable vapor cloud explosion |
| CN107271635B (en) * | 2017-06-30 | 2020-01-03 | 中国石油天然气股份有限公司西部管道分公司 | Open space large-scale combustible gas cloud explosion three-dimensional overpressure field testing method |
| CN109613205A (en) * | 2019-01-24 | 2019-04-12 | 南京工业大学 | Deflagration flame and pressure coupling test method and test system for premixed gas clouds in open space with different humidities |
| CN109613205B (en) * | 2019-01-24 | 2023-12-22 | 南京工业大学 | Method and system for testing deflagration flame and pressure coupling of premixed gas clouds with different humidities in open space |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205067404U (en) | Combustible gas opens wide space explosion test device | |
| CN107121453B (en) | It is applicable in the gas, dust explosion and datonation-inhibition experimental system of a variety of optical diagnostic methods | |
| CN104749218B (en) | Flammable gas explosion characteristic test device and method under ultralow temperature | |
| CN106093283B (en) | A kind of test method and device of Fast Evaluation lithium battery fire fire fighting with fire extinguisher performance | |
| CN102935275B (en) | A kind of test method and device evaluating total flooding extinguishing property | |
| CN202938025U (en) | Gas leakage detection device | |
| CN101706375A (en) | Battery extrusion test device | |
| CN105181746A (en) | Device for combustible gas explosion test in open space | |
| CN107064452B (en) | Experimental device for simulating instantaneous burning and explosion of combustible gas and application method | |
| CN106482644A (en) | A kind of apparatus and method for testing lithium battery Combustion flame height | |
| CN201156037Y (en) | Pyrotechnic compound combustion and explosion performance detector | |
| CN204717358U (en) | Pipeline gas leak detecting device | |
| CN102998390B (en) | Method for analyzing carbon monoxide gas in coal under anaerobic condition | |
| CN202368394U (en) | Electric core weeping gas detection device for electric automobile | |
| CN206019982U (en) | Gas burst pressure is produced and loading experimental apparatus | |
| CN206832730U (en) | It is applicable the blast of the gas or dust of a variety of optical diagnosticses and datonation-inhibition experimental system | |
| CN203366620U (en) | Explosion experiment apparatus for dust burning | |
| CN106988638A (en) | Pneumatic fire door peculiar to vessel | |
| CN106226021A (en) | Gas burst pressure produces and loading experimental apparatus | |
| CN207586401U (en) | A kind of battery testing explosion-proof tank and battery tester | |
| CN105521836A (en) | Low-air-pressure testing system | |
| CN206496894U (en) | A kind of battery pressure limiting cover plate explosion-proof valve air pressure test system | |
| CN214081465U (en) | Fire early warning robot | |
| CN204419264U (en) | Methane prediction Apparatus and system | |
| CN206348011U (en) | A kind of battery bonfire test machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |