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Test system for unconfined-space vapor cloud explosion chain reaction and test method of test system

A technology of vapor cloud explosion and chain reaction, applied in the direction of material explosion, to achieve the effect of accurate and fast data collection, convenient use and reasonable design

Pending Publication Date: 2018-08-21
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no simple and easy-to-install measuring device that can accurately measure the pressure data generated by the vapor cloud explosion, the flame development law and the relevant parameters of the vapor cloud explosion chain reaction.

Method used

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  • Test system for unconfined-space vapor cloud explosion chain reaction and test method of test system
  • Test system for unconfined-space vapor cloud explosion chain reaction and test method of test system

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Embodiment Construction

[0023] Refer to attached figure 1 , 2 , an open space vapor cloud explosion chain reaction test system includes a base plate (1), an ignition device (2), a gas distribution system (3), a high-speed camera (4), a pressure sensor (5), and a data acquisition system (6 ) and PVC film (7).

[0024] The bottom plate (1) is the aluminum alloy bottom plate (1) used as the experimental platform, the ignition device (2) is connected with the bottom plate (1), and is used to ignite the combustible vapor cloud; the gas distribution system (3) is connected with the bottom plate (1), and can Prepare the combustible gas-air premixed gas according to the concentration requirements; the high-speed flame camera (4) is installed on one side of the device through the bracket to record the flame image during the explosion; the pressure sensor (5) is installed on the bottom plate to record the explosion Pressure data; the data acquisition system (6) records the analysis data in real time and tran...

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Abstract

The invention relates to a test system for unconfined-space vapor cloud explosion chain reaction and a test method of the test system. The test system and the test method are used for simulating unconfined-space vapor cloud explosion and obtaining the pressure and flame development process generated by the explosion for further study of the chain explosion transmission effect among combustible vapor clouds. The system comprises a bottom plate, an ignition device, a gas preparation system, a high-speed camera, a pressure sensor, a data acquisition system and a polyvinyl chloride film, wherein the bottom plate is used as the aluminum alloy bottom plate of a test platform, and the ignition device is communicated with the bottom plate and used for igniting the combustible vapor clouds; the gaspreparation system is communicated with the bottom plate and can prepare combustible gas and air premixed gas according to concentration requirements; the high-speed flame camera is mounted on one side of the system through a bracket and used for recording flame images during explosion; the pressure sensor is mounted on the bottom plate and used for recording pressure data during explosion; the data acquisition system records and analyzes the data in real time and transmits the data to a computer; the polyvinyl chloride film is used for fixing the combustible gas to form the unconfined-spacehemispherical vapor clouds.

Description

technical field [0001] The present invention relates to an open space combustible vapor cloud explosion chain reaction test system and its testing method, which are used to simulate the open space vapor cloud explosion, obtain its generated pressure and flame development process, and then study the combustible vapor cloud explosion chain reaction. chain explosion effect. Background technique [0002] The overpressure generated by combustible gas cloud explosion is relatively large, which may cause huge damage. A large amount of combustible gas may leak from gas storage tanks or gas pipelines, diffuse and mix in the air to form a large-scale gas cloud explosion mixture. When the gas cloud is ignited, it will explode. The pressure wave generated by the explosion and the flame will have a very destructive effect in the open space. Moreover, when multiple leaks occur in storage tanks or pipelines, one vapor cloud explosion will ignite other gas clouds, causing a chain reaction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/54
CPCG01N25/54
Inventor 王志荣马驰马世昌郭品坤
Owner NANJING UNIV OF TECH
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