CN207850968U - A kind of wide open space vaporous cloud explosion chain reaction test system - Google Patents
A kind of wide open space vaporous cloud explosion chain reaction test system Download PDFInfo
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- CN207850968U CN207850968U CN201820357324.4U CN201820357324U CN207850968U CN 207850968 U CN207850968 U CN 207850968U CN 201820357324 U CN201820357324 U CN 201820357324U CN 207850968 U CN207850968 U CN 207850968U
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- 238000004880 explosion Methods 0.000 title claims abstract description 74
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 34
- 238000012360 testing method Methods 0.000 title abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 48
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 23
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 23
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 10
- 238000002474 experimental method Methods 0.000 claims abstract description 10
- 239000002737 fuel gas Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 238000013480 data collection Methods 0.000 claims description 4
- -1 Polyethylene Polymers 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 claims description 3
- 238000011161 development Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 230000006378 damage Effects 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920001596 poly (chlorostyrenes) Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model relates to a kind of explosion chain reactions of wide open space combustible vapor cloud to test system, for simulating the explosion of wide open space vaporous cloud, obtain the pressure and flame development process of its generation, and then study the chain propagation of explosion effect between combustible vapor cloud.Including bottom plate, igniter, air distribution system, high-speed camera instrument, pressure sensor, data collecting system and polyvinyl chloride film；Aluminum alloy bottom plate of the bottom plate as experiment porch, igniter are connected to bottom plate, and for the combustible vapor cloud that ignites；Air distribution system is connected to bottom plate, and can be pressed concentration requirement and be prepared combustible gas, air pre-mixing gas；High-speed flame video camera is mounted on device side by holder, for recording explosion time flame image；Pressure sensor is mounted on bottom plate, for recording explosion time pressure data；Data collecting system records and analyzes data in real time, and is passed to computer；Polyvinyl chloride film is for fixing fuel gas, to form wide open space hemispherical vaporous cloud.
Description
Technical field
The utility model relates to a kind of explosion chain reactions of wide open space combustible vapor cloud to test system, for simulating
Wide open space vaporous cloud explodes, and obtains the pressure and flame development process of its generation, and then chain between research combustible vapor cloud
Propagation of explosion effect.
Background technology
The superpressure that flammable vapor cloud explosion generates is relatively large, and huge destruction, a large amount of fuel gas may be caused to have
It may be leaked from gas reservoir or gas pipeline, diffusion in air is mixed to form extensive Gas explosion mixing
Object will explode once gas cloud is ignited, and the pressure for generation of exploding involves flame has prodigious destruction in open space
Effect.And when multiple spot leakage occurs for storage tank or pipeline, a vaporous cloud explosion can ignite other gas clouds, cause vaporous cloud
The chain reaction of explosion, harm are huge.Therefore, simulation vaporous cloud explosion chain reaction experiment is carried out, test Gas explosion generates
Superpressure, the formulation of determination and safety standard for safe distance is necessary.
The experiment gas cloud small scale being related in the lab, the data demand generated to vaporous cloud explosion is accurate, is simulating
Experiment in terms of vaporous cloud explosion chain reaction is not yet carried out.There has been no a kind of simple measuring devices easily filled at present can be accurate
Measure the relevant parameter of the pressure data that vaporous cloud explosion generates, flame development rule and vaporous cloud explosion chain reaction.
Invention content
The utility model aim is stated for one the technical problem to be solved is that, providing a kind of wide open space vaporous cloud
System is tested in chain reaction of exploding.The test system conveniently can accurately measure the generation of wide open space vaporous cloud explosion time
Pressure measures flame development procedural image.
A kind of wide open space vaporous cloud explosion chain reaction test system is that following technical scheme is taken to realize：
A kind of wide open space vaporous cloud explosion chain reaction test system includes bottom plate, igniter, air distribution system, high speed
Video camera, pressure sensor, data collecting system and polyvinyl chloride film.
Aluminum alloy bottom plate of the bottom plate as experiment porch, igniter are connected to bottom plate, and for the combustible vapor cloud that ignites；
Air distribution system is connected to bottom plate, and can be pressed concentration requirement and be prepared combustible gas-air pre-mixing gas；High-speed flame video camera passes through branch
Frame is mounted on device side, for recording explosion time flame image；Pressure sensor is mounted on bottom plate, for recording explosion time
Pressure data；Data collecting system records and analyzes data in real time, and is passed to computer；Polyvinyl chloride film can for fixation
Combustion gas body is to form wide open space hemispherical vaporous cloud.
The bottom plate material is aluminium alloy.There are several various sizes of concentric ring recesses on bottom plate, for passing through rubber
Rubber gasket fixes polyethylene film.There are two the screw holes of M 20*1.5, respectively igniter and air supply system to connect at its center
Mouthful.
The igniter obtains ignition energy using spark ignition mode.Its igniter head is solid by the screw hole of bottom plate
It is fixed, it can be contacted with flammable vapor cloud, realize igniting.
The air distribution system by vacuum pump, distributing cabinet, distribution switch board, flammable gas cylinder, air compressor machine, appendix and
Distributing valve composition on bottom plate.Fuel gas is by admission line and distributing valve, into having fixed and drained air
Polyvinyl chloride film in, as gas constantly enters, gradually form hemispheric combustible vapor cloud.
The high-speed camera instrument is mounted on device side, and model Phantom V7.3 are flammable for real-time monitoring
Vaporous cloud explodes and the flame development image of gas cloud chain explosion.Obtained flame image data are carried out by data collecting system
Collection analysis.
The pressure sensor using gas cloud center as core it is radial be arranged around gas cloud, it is flammable to measure
The pressure data that vaporous cloud explodes and gas cloud chain explosion generates, obtained pressure data are acquired by data collecting system
Analysis.
The number that the data collecting system real-time display, record, analysis high-speed flame video camera, pressure sensor measure
According to.The data collecting system is by main frame, computer display, DEWESoft transient data collection devices DEWE-43
Composition.
The polyvinyl chloride film thickness is 0.05 mm-, 0.08 mm, is fixed on bottom plate by rubber washer, energy
Confined space is collectively formed in enough and bottom plate.As the gas from air distribution system constantly enters, hemispheric combustible vapor is formed
Cloud.
A kind of test method of wide open space combustible vapor cloud explosion chain reaction test system, its step are as follows：
Polyvinyl chloride film is fixed on by rubber washer on bottom plate first, shrinkable polyvinyl chloride film drains therein
Air；Air distribution system prepares combustible gas-air pre-mixing gas that predetermined concentration is 5%-15%, then opens the air inlet on bottom plate
Valve, by gas-filling device, as polyvinyl chloride film constantly expands, after forming hemispherical steam cloud, pressure maintains one
A atmospheric pressure closes intake valve and air distribution system；Then it is ignited combustible gas-air pre-mixing gas using igniter, passes through height
Fast flame video camera and pressure sensor obtain the pressure and flame development image of Gas explosion process generation；Finally by pressure
Data, flame image incoming data acquisition system are acquired, and are recorded, analysis.Test experiments carry out under normal temperature and pressure state.
A kind of wide open space vaporous cloud explosion chain reaction test system and its test method reasonable design, it is compact-sized,
Easy to use, the utility model is to measure the explosion of wide open space vaporous cloud in real time by pressure sensor, high-speed flame video camera
When pressure, flame development image.Experimental provision is simply easily assembled, and data collection is accurately quick.
The utility model provides a kind of wide open space combustible vapor cloud explosion chain reaction test system, open for simulating
Headspace vapor cloud explodes, and obtains the pressure and flame development process of its generation, and then study the chain propagation of explosion between combustible vapor cloud
Effect.The system is by bottom plate, igniter, air distribution system, high-speed camera instrument, pressure sensor, data collecting system, polychlorostyrene second
Alkene film forms.Radial in multiple places by core of gas cloud center, multiple angles build the pressure of a three-dimensional multiple spot
Sensor test array.Pressure data is acquired from acquisition mode using pressure data.Certain altitude is formed by air supply system
Flammable vapor cloud.The image that vaporous cloud explosion generates is recorded by high-speed camera instrument.By igniter in a manner of spark ignition
Vaporous cloud is lighted, the superpressure that test needs is formed.Data foundation is provided for the formulation of safe distance and standard.This test system energy
It is enough accurate to measure the pressure data and flame development rule that vaporous cloud explosion generates, it being capable of the explosion chain reaction of test vapors cloud
Relevant parameter, and then study vaporous cloud explosion chain reaction cause calamity mechanism and safeguard measure.
Description of the drawings
Below with reference to attached drawing, the utility model is described in further detail：
Fig. 1 is a kind of structural schematic diagram of wide open space vaporous cloud explosion chain reaction test system；
Fig. 2 is a kind of vertical view of the aluminum alloy bottom plate of wide open space vaporous cloud explosion chain reaction test device.
In figure：1, bottom plate, 2, igniter, 3, air distribution system, 4, high-speed camera instrument, 5, pressure sensor, 6, data adopt
Collecting system, 7, polyvinyl chloride film.
Specific implementation mode
With reference to attached drawing 1,2, a kind of wide open space vaporous cloud explosion chain reaction test system includes bottom plate（1）, igniting dress
It sets（2）, air distribution system（3）, high-speed camera instrument（4）, pressure sensor（5）, data collecting system（6）And polyvinyl chloride film
（7）.
Bottom plate（1）Aluminum alloy bottom plate as experiment porch（1）, igniter（2）With bottom plate（1）Connection, and for drawing
Fire combustible vapor cloud；Air distribution system（3）With bottom plate（1）Connection, and concentration requirement can be pressed and prepare combustible gas-air pre-mixing gas；
High-speed flame video camera（4）It is mounted on device side by holder, for recording explosion time flame image；Pressure sensor（5）
On bottom plate, for recording explosion time pressure data；Data collecting system（6）Data are recorded and analyzed in real time, and are passed
Enter computer；Polyvinyl chloride film（7）For fixing fuel gas to form wide open space hemispherical vaporous cloud.
The bottom plate（1）Material is aluminium alloy.There are several various sizes of concentric ring recesses on bottom plate, for passing through
Rubber washer fixes polyethylene film（7）.There are two the screw holes of M 20*1.5, respectively igniter at its center（2）With gas supply
System（3）Interface.
The igniter（2）Ignition energy is obtained using spark ignition mode.Its igniter head passes through bottom plate（1）'s
Screw hole is fixed, and can be contacted with flammable vapor cloud, realizes igniting.
The air distribution system（3）By vacuum pump, distributing cabinet, distribution switch board, flammable gas cylinder, air compressor machine, appendix
And it is mounted on bottom plate（1）On distributing valve composition.Fuel gas is by admission line and distributing valve, into having fixed and arranged
The polyvinyl chloride film of air to the greatest extent（7）It is interior, as gas constantly enters, gradually form hemispheric combustible vapor cloud.
The high-speed camera instrument（4）Mounted on system side, model Phantom V7.3 can for real-time monitoring
Fire the flame development image of vaporous cloud explosion and gas cloud chain explosion.Obtained flame image data pass through data collecting system
（6）It is acquired analysis.
The pressure sensor（5）Using gas cloud center as core it is radial be arranged around gas cloud, to measure
The pressure data that combustible vapor cloud explodes and gas cloud chain explosion generates, obtained pressure data pass through data collecting system（6）
It is acquired analysis.
The data collecting system（6）Real-time display, record, analysis high-speed flame video camera（4）, pressure sensor
（5）The data of measurement.The data collecting system（6）By computer（6-1）, computer display（6-2）, data collector
（6-3）Composition.The computer（6-1）Using DELL R1838 type computers.The data collector（6-3）Using
DEWESoft transient data collection devices DEWE-43.
The polyvinyl chloride film（7）Thickness is 0.05-0.08 mm, can be fixed on bottom plate by rubber washer（1）
On, it can be with bottom plate（1）Confined space is collectively formed.With from air distribution system（3）Gas constantly enter, formed hemispherical
Combustible vapor cloud.
As shown in Figure 1, this system includes：Aluminum alloy bottom plate as experiment porch（1）, with bottom plate（1）It is connected to and is used for
It ignites the igniter of combustible vapor cloud（2）；With bottom plate（1）It is connected to and combustible gas, air pre-mixing can be prepared by concentration requirement
The air distribution system of gas（3）；It is mounted on device side by holder, the high-speed flame for recording explosion time flame image images
Instrument（4）；On bottom plate, the pressure sensor for recording explosion time pressure data（5）；Data are recorded and analyzed in real time, and
It is passed to the data collecting system of computer（6）；For fixing fuel gas to form wide open space hemispherical vaporous cloud
Polyvinyl chloride film（7）.
It is illustrated in figure 2 whole system aluminum alloy bottom plate（1）, 1 cm of thickness above has several concentric ring recesses, wide 3mm,
Deep 5mm, diameter are respectively 100,90,80,70,60 cm；The screw hole of two M 20*1.5 is respectively screw hole one（1-1）, screw hole two
（1-2）, screw hole one（1-1）Heart position in the soleplate is burning torch interface.Screw hole two（1-2）Positioned at screw hole one（1-1）Top 5
It is intake valve interface at cm.
A kind of test method of wide open space combustible vapor cloud explosion chain reaction test system, operating process are as follows：
First by polyvinyl chloride film（7）It is fixed on bottom plate by rubber washer（1）On, shrinkable polyvinyl chloride film（7）It drains wherein
Air；Air distribution system（3）Combustible gas-air pre-mixing gas of a concentration of 5%-15% is prepared, the air inlet on bottom plate is then opened
Valve, by gas-filling device, with polyvinyl chloride film（7）Constantly expansion, after forming hemispherical steam cloud, pressure maintains
One atmospheric pressure closes intake valve and air distribution system（3）；Then igniter is used（2）Ignite combustible gas-air pre-mixing gas
Body passes through high-speed flame video camera（4）With pressure sensor（5）, obtain the pressure and flame development of Gas explosion process generation
Image；Finally by pressure data, flame image incoming data acquisition system（6）It is acquired, records, analysis.Test experiments exist
It is carried out under normal temperature and pressure state.
Single combustible vapor cloud explosion time is being studied, by the way that variable is arranged：Steam cloud concentration, vaporous cloud size and ignition energy
Amount studies combustible vapor cloud blast pressure and the flame propagation rule of development under different situations, with the quick-fried of the different fuel gas of determination
The fried limit, the relationship of bursting strength and vaporous cloud size and ignition energy.
When studying the explosion chain reaction of combustible vapor cloud, passes through and variable is set：The size of detonation vaporous cloud, ignition energy
Amount, propagation of explosion vaporous cloud size and vaporous cloud spacing are studied under different situations under combustible vapor cloud explosion chain reaction, explosion pressure
Power and flame propagation process, with determine combustible vapor cloud explosion chain reaction under pressure development process, flame development rule, and
The explosion of combustible vapor cloud is avoided to cause the safe distance of chain reaction under different condition.
The utility model provides a kind of wide open space vaporous cloud explosion chain reaction test system.The test system can
The convenient pressure for accurately measuring the generation of wide open space vaporous cloud explosion time, measures flame development procedural image.
The utility model provides a kind of wide open space combustible vapor cloud explosion chain reaction test system, open for simulating
Headspace vapor cloud explodes, and obtains the pressure and flame development process of its generation, and then study the chain propagation of explosion between combustible vapor cloud
Effect.The test system backplane（1）, igniter（2）, air distribution system（3）, high-speed camera instrument（4）, pressure sensor（5）, number
According to acquisition system（6）And polyvinyl chloride film（7）.
Radial in multiple places by core of gas cloud center, multiple angles build the pressure sensing of a three-dimensional multiple spot
Device hot-wire array.Pressure data is acquired from acquisition mode using pressure data.The flammable of certain altitude is formed by air supply system
Gas cloud.The image that vaporous cloud explosion generates is recorded by high-speed camera instrument.It is lighted in a manner of spark ignition by igniter
Vaporous cloud forms the superpressure that test needs.Data foundation is provided for the formulation of safe distance and standard.
Claims (8)
1. system is tested in a kind of wide open space vaporous cloud explosion chain reaction, which is characterized in that including bottom plate, igniter, match
Gas system, high-speed camera instrument, pressure sensor, data collecting system and polyvinyl chloride film；
Aluminum alloy bottom plate of the bottom plate as experiment porch, igniter are connected to bottom plate, and for the combustible vapor cloud that ignites；Distribution
System is connected to bottom plate, and can be pressed concentration requirement and be prepared combustible gas, air pre-mixing gas；High-speed flame video camera is pacified by holder
Mounted in device side, for recording explosion time flame image；Pressure sensor is mounted on bottom plate, for recording explosion time pressure
Data；Data collecting system records and analyzes data in real time, and is passed to computer；Polyvinyl chloride film is for fixing combustible gas
Body, to form wide open space hemispherical vaporous cloud.
2. system is tested in a kind of wide open space vaporous cloud explosion chain reaction according to claim 1, which is characterized in that institute
The bottom plate material stated is aluminium alloy, has several various sizes of concentric ring recesses on bottom plate, is fixed for passing through rubber washer
Polyethylene film, there are two screw holes, the respectively interface of igniter and air supply system at center.
3. system is tested in a kind of wide open space vaporous cloud explosion chain reaction according to claim 1, which is characterized in that institute
The igniter stated obtains ignition energy using spark ignition mode, and igniter head is fixed by the screw hole of bottom plate, Neng Gouyu
Flammable vapor cloud contacts, and realizes igniting.
4. system is tested in a kind of wide open space vaporous cloud explosion chain reaction according to claim 1, which is characterized in that institute
The air distribution system stated is by vacuum pump, distributing cabinet, distribution switch board, flammable gas cylinder, air compressor machine, appendix and is mounted on bottom plate
On distributing valve composition, fuel gas is by admission line and distributing valve, into the polyvinyl chloride for having fixed and having drained air
In film, as gas constantly enters, hemispheric combustible vapor cloud is gradually formed.
5. system is tested in a kind of wide open space vaporous cloud explosion chain reaction according to claim 1, which is characterized in that institute
The high-speed camera instrument stated is mounted on system side, the flame for real-time monitoring the explosion of combustible vapor cloud and gas cloud chain explosion
Develop image, obtained flame image data are acquired analysis by data collecting system.
6. system is tested in a kind of wide open space vaporous cloud explosion chain reaction according to claim 1, which is characterized in that institute
The pressure sensor stated using gas cloud center as core it is radial be arranged around gas cloud, to measure combustible vapor cloud explosion
And the pressure data that gas cloud chain explosion generates, obtained pressure data are acquired analysis by data collecting system.
7. system is tested in a kind of wide open space vaporous cloud explosion chain reaction according to claim 1, which is characterized in that institute
The data that the data collecting system real-time display stated, record, analysis high-speed flame video camera, pressure sensor measure；Described
Data collecting system is made of main frame, computer display, transient data collection device DEWE-43.
8. system is tested in a kind of wide open space vaporous cloud explosion chain reaction according to claim 1, which is characterized in that
The polyvinyl chloride film thickness is 0.05 mm -0.08 mm, is fixed on bottom plate by rubber washer, can be with bottom plate
Confined space is collectively formed, as the gas from air distribution system constantly enters, forms hemispheric combustible vapor cloud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820357324.4U CN207850968U (en) | 2018-03-16 | 2018-03-16 | A kind of wide open space vaporous cloud explosion chain reaction test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820357324.4U CN207850968U (en) | 2018-03-16 | 2018-03-16 | A kind of wide open space vaporous cloud explosion chain reaction test system |
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| Publication Number | Publication Date |
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| CN207850968U true CN207850968U (en) | 2018-09-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926845A (en) * | 2019-12-24 | 2020-03-27 | 中国海洋石油集团有限公司 | Oil gas explosion simulation experiment platform for ocean platform |
| CN112540103A (en) * | 2019-09-20 | 2021-03-23 | 中国石油化工股份有限公司 | System, method and terminal for detecting anti-explosion performance of structure |
-
2018
- 2018-03-16 CN CN201820357324.4U patent/CN207850968U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112540103A (en) * | 2019-09-20 | 2021-03-23 | 中国石油化工股份有限公司 | System, method and terminal for detecting anti-explosion performance of structure |
| CN110926845A (en) * | 2019-12-24 | 2020-03-27 | 中国海洋石油集团有限公司 | Oil gas explosion simulation experiment platform for ocean platform |
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