Automatic circulating water curtain explosion damage attenuation system

Abstract

The invention belongs to the field of explosion protection, and particularly relates to an automatic circulating water curtain explosion damage attenuation system. Comprising a channel, a sensor installed in the channel, a plurality of water curtain generation devices used for generating water curtains in the channel, a water supply device, a recovery device and a control cabinet. The water curtain generating device comprises a box body, a net film, a splitter plate and a bracket; the support comprises two branch supports which are symmetrically distributed about the long axis of the box body, a channel formed by the two branch supports is in a funnel shape, a net film is arranged above the splitter plates, a plurality of vertically-arranged splitter plates are evenly distributed on the fixed-width part of the funnel-shaped channel, and water flow is converted into laminar flow from turbulent flow after passing through the net film and the splitter plates. And finally, a stable, gentle and continuous water curtain can be formed after the water flows out of the water curtain generation device. The system disclosed by the invention can generate a uniform, stable and continuous water curtain, attenuate explosion shock waves, reduce the environment temperature and block flame and flammable and toxic gas transmission.

Description

technical field [0001] The invention belongs to the field of explosion protection, in particular to an automatic circulating water curtain attenuation explosion damage system. Background technique [0002] Explosion is a physical or chemical physical process that widely exists in nature and human activities, such as earthquakes, natural lightning, ammunition explosions, high-pressure steam boiler explosions, mine gas explosions, etc. The explosion generates high-pressure gas in a very short period of time or the material that is vaporized by transient heating does work on the surrounding medium, and emits various energy radiation to damage the target. Rational use of explosion phenomena can help the development of national defense forces and industrial progress. However, explosions can also pose a great threat to one's own side. For example, explosions caused by accidents during the production, transportation or use of ammunition; stored dangerous goods burn or explode due...

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Problems solved by technology

[0006] 2. Install a water container (such as a water bag, plastic interlayer) on the surface of the rigid wall, fill the container with water, and form a water wall on the surface of the rigid wall. Although the upper layer of water can reduce the deformation and damage of the rigid wall under the action of shock waves, when applied to a specific use environment, this form of explosion suppression still needs to be installed and fixed in the use environment, and the use method is not flexible

The sensor used in this invention monitors the shock wave signal, but the shock wave is the main means of destruction of the explosion, and its movement speed is often as high as several Mach, and the time scale of the process of destroying the structure is microsecond or millisecond level. When the sensor detects the shock wave signal , the control system has completed the action process of the shock wave before starting the water curtain forming device, so it is inappropriate to start the water curtain forming system by monitoring the shock wave signal; in addition, the water curtain forming device described in this invention utilizes multiple water Curtain nozzles form a water curtain, the width of the water curtain formed by the water curtain nozzle is narrow, the flow is turbulent, the water curtain will disperse far away from the nozzle, and a complete water curtain cannot be formed, the shock wave will be diffracted when passing through the water curtain, and the protection Very limited effect

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