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Method and device for inhibiting outer floating roof crude oil storage tank primary and secondary sealed space oil and gas combustion and explosion

A crude oil storage tank and secondary sealing technology, applied in packaging, transportation and packaging, containers, etc., can solve problems such as collapse and deformation of oil storage tanks, fire accidents, etc., and achieve the effect of suppressing evaporation and facilitating the implementation of the process

Active Publication Date: 2015-04-22
VITALONG FIRE SAFETY GRP
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Problems solved by technology

The main cause of fires in large oil storage tanks is lightning strikes. First, there is a flash explosion, and then the sealing ring is partially or completely caught on fire. If the fire cannot be quickly extinguished, the oil storage tank may collapse and deform, leading to a serious fire accident.

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  • Method and device for inhibiting outer floating roof crude oil storage tank primary and secondary sealed space oil and gas combustion and explosion
  • Method and device for inhibiting outer floating roof crude oil storage tank primary and secondary sealed space oil and gas combustion and explosion
  • Method and device for inhibiting outer floating roof crude oil storage tank primary and secondary sealed space oil and gas combustion and explosion

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] A method for suppressing oil-gas explosion in the primary and secondary sealed spaces of an external floating roof crude oil storage tank, specifically: detecting the mixed gas in the primary and secondary sealed spaces of the external floating roof crude oil storage tank through a gas detection mechanism, the external The primary and secondary sealing spaces of the floating-roof crude oil storage tank are formed by the secondary sealing plate 4 of the outer floating-roof crude oi...

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Abstract

The invention discloses a method and device for inhibiting outer floating roof crude oil storage tank primary and secondary sealed space oil and gas combustion and explosion. The method and device are mainly used for overcoming the combustible and explosive oil and gas space dangerousness caused by crude oil evaporation between primary sealed space and secondary sealed space of a crude oil storage tank area outer floating roof storage tank. A crude oil evaporation inhibitor is injected into the surface of crude oil; due to the fact that the density of the inhibitor is lower than that of the crude oil, the inhibitor will cover the surface of the crude oil and will not cause a sink or static charge accumulation problem, and crude oil evaporation is effectively inhibited. In addition, non-combustible and non-explosive gas produced by inhibitor evaporation dilutes the concentration of oil and gas inside the primary sealed space and secondary sealed space of the outer floating roof storage tank, and therefore inerting protection on the oil and gas space is achieved. The method and device are convenient and easy to implement and capable of being applied to safety protection of outer floating roof oil tanks and storage tanks of various shapes.

Description

technical field [0001] The invention belongs to the field of fire safety in the petroleum and petrochemical industry, and in particular relates to a method and a device for suppressing oil and gas explosions in the primary and secondary sealed spaces of an outer floating roof crude oil storage tank. Background technique [0002] According to the statistics of the American Petroleum Institute (API) on oil storage tank fire accidents, due to the irregular deformation of the tank wall, the primary and secondary seals of the outer floating roof storage tank are likely to form an environment of explosive gas mixture during normal operation, so the sealing ring Fires accounted for 72.8% of the total fires. The main cause of fires in large oil storage tanks is lightning strikes. First, there is a flash explosion, and then the sealing ring is partially or completely caught on fire. If the fire cannot be extinguished quickly, the oil storage tank may collapse and deform, leading to a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D90/22B65D88/48
CPCB65D88/48B65D90/22
Inventor 汪映标张宗勤胡安林张宁甲张潇张宏伟
Owner VITALONG FIRE SAFETY GRP
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