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Mitigation of Vapor Cloud Explosions by Chemical Suppression

A vapor cloud explosion and inhibitor technology, applied in the field of mitigating vapor cloud explosion through chemical suppression, can solve problems such as destruction and explosion equipment, and achieve the effects of reducing consequences, reliable methods, and risk reduction

Inactive Publication Date: 2017-09-19
TOTAL RAFFINAGE CHIM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

historical evidence has shown that ignition of such clouds can lead to devastating explosions and destruction of equipment

Method used

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  • Mitigation of Vapor Cloud Explosions by Chemical Suppression
  • Mitigation of Vapor Cloud Explosions by Chemical Suppression
  • Mitigation of Vapor Cloud Explosions by Chemical Suppression

Examples

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Embodiment Construction

[0116] Where flammable gases are present include utilities, chemical and petrochemical manufacturing plants, petroleum refineries, metallurgical industries, breweries, paint and varnish manufacturing, offshore operations, printing, semiconductor manufacturing, pharmaceutical manufacturing, and aerosol can filling operations Processed as a raw material, product or by-product in many industrial applications, including In addition, flammable gases are released through leaks in above-ground or underground piping systems or leaks of flammable liquids. The present invention is very attractive for refineries and petrochemical plants.

[0117] A refinery can consist of multiple units.

[0118] The invention can be applied, for example, to three units of an oil refinery, eg, steam cracker unit, butadiene separation unit, aromatics unit, etc.

[0119] Each unit has been divided into several processing areas. Each unit can have, for example, 1 to 4 processing zones.

[0120] Each pro...

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PUM

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Abstract

A method of mitigating the consequences of a vapor cloud explosion resulting from an accidental release of a flammable gas in an open area, the method comprising: defining a hazard area in which an accidental release of a flammable gas may occur; receiving (300, 305 ) a signal from a detector device capable of detecting the presence of a flammable gas in a hazardous area, upon receipt of a signal indicative of the presence of a flammable gas in a hazardous area, generating (309) a flame acceleration inhibitor as The release activates the control signal at a rate determined as a function of the volume in the hazardous area.

Description

technical field [0001] The present invention relates to a method of mitigating the consequences of unconfined or partially confining vapor cloud explosions by suppression. Background technique [0002] A particular hazard in petrochemical plants and refineries is the accidental release of large quantities of flammable materials which lead to the formation of flammable clouds within the facility. Historical evidence has shown that ignition of such clouds can lead to devastating explosions and destruction of equipment. Such accidents are commonly named "Vapor Cloud Explosion" (VCE) or "Unconfined Vapor Cloud Explosion" and referred to as "VCE". [0003] Flame suppression refers to the weakening of a flame, ie, the reduction of the rate of the overall exothermic reaction in the flame. Depending on the flow field in which the flame exists, this weakening may or may not result in extinguishment. [0004] Flame suppression is distinct from extinguishing, flame extinction, or fl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62C99/00A62C3/06A62C4/00
CPCA62C3/06A62C4/00A62C99/00A62C99/0009A62C37/36
Inventor 克里斯托弗·盖雷德克·罗森丹斯莱奥波德·霍雷贝克吉勒斯·赫尔施格
Owner TOTAL RAFFINAGE CHIM
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