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Explosion resistance and prevention device for combustible and flammable liquid and gas pipelines

A gas pipeline and flammable liquid technology, which is applied in fire rescue and other directions, can solve the problems of many influencing factors and untimely response of explosion suppression devices, and achieve the effect of preventing secondary damage and suppressing fire.

Inactive Publication Date: 2017-05-24
NANJING TIANBEN SAFETY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these explosion suppression devices have many influencing factors, and it is easy to respond untimely

Method used

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  • Explosion resistance and prevention device for combustible and flammable liquid and gas pipelines
  • Explosion resistance and prevention device for combustible and flammable liquid and gas pipelines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Flammable and flammable liquid and gas pipeline explosion-proof explosion-proof device, composed of conical spiral tube 2, shell 1 and fire retardant 3, conical spiral tube 2 is provided with an inlet and an outlet, conical spiral tube 2 is set in the shell 1, The inlet and outlet protrude from the casing 1 and are respectively connected to the conveying pipeline through flanges, and the gap between the casing 1 and the tapered spiral pipe 2 is filled with 0.8g / cm3 dry powder fire extinguishing agent. Due to the critical pipe diameter effect and the corner effect, the intensity of the flame and the shock wave entering the conical spiral pipe 2 will rapidly and continuously decay until they disappear, thereby achieving the effect of explosion prevention and explosion protection. When the device casing 1 is damaged by the impact of the shock wave, the filled dry powder fire extinguishing agent can be thrown out in time to form a fire extinguishing environment around the de...

Embodiment 2

[0025] Explosion-proof and explosion-proof device for flammable and flammable liquid and gas pipelines, consisting of a double-conical spiral tube 2, a shell 1 and a fire retardant 3, the double-conical spiral tube 2 is provided with an inlet and an outlet, and the double-conical spiral tube 2 is arranged on the shell 1, the inlet and outlet extend out of the shell 1 and are respectively welded to the delivery pipeline, and the space between the shell 1 and the double-tapered spiral tube 2 is filled with 2Mpa inert gas. Due to the critical pipe diameter effect and the corner effect, the intensity of the flame and the shock wave entering the biconical spiral pipe 2 will rapidly and continuously decay until they disappear, thereby achieving the effect of explosion prevention and explosion protection. When the device casing 1 is damaged by the impact of the shock wave, the filled inert gas can be thrown out in time to form a fire extinguishing environment around the device for loc...

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Abstract

The invention discloses an explosion resistance and prevention device for combustible and flammable liquid and gas pipelines. The explosion resistance and prevention device is used for explosion resistance and prevention of the pipelines and comprises a conical spiral pipe, a shell and a fire retardant. The conical spiral pipe is provided with an inlet and an outlet. The conical spiral pipe is arranged in the shell. The inlet and the outlet extend out of the shell. The space between the interior of the shell and the conical spiral pipe is filled with the fire retardant. According to the explosion resistance and prevention device applied to the combustible and flammable liquid and gas pipelines, when the pipelines are combusted and exploded, because of the existence of the critical pipe diameter and the corner effect, the strength of impact waves entering the conical spiral pipe can be rapidly and continuously attenuated till the impact waves disappear, and the explosion resistance and prevention effects are achieved; when the device or the conical spiral pipe is influenced by the explosion and cracks, the fire retardant can put out a fire in time; and meanwhile, after the device or the conical spiral pipe deforms or cracks, a pipeline cut-off system can be excited (triggered) through a sensing device or an interlocking device, and therefore media in the pipelines cannot leak.

Description

technical field [0001] The invention relates to the fields of safety engineering, environmental protection engineering, organic waste gas and the like, in particular to an explosion-proof and explosion-proof device for flammable liquid and gas pipelines. Background technique [0002] At present, there are only fire arresting and explosion suppression devices used in flammable and flammable liquid and gas pipelines, but no explosion-proof explosion-proof devices, which mainly include metal mesh type, corrugated type, packing type, perforated plate type, etc. The principle is through Heat transfer effects and wall effects prevent flame propagation in the pipe. The fire arresting device divides the transportation pipeline into multiple parts. When the flame propagates in the pipeline, when the pipe diameter decreases, due to heat conduction and wall effect, the heat loss will gradually increase, and the combustion temperature and flame propagation speed will decrease accordingl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C4/00
Inventor 解立峰宋庆学宋庆利张建新李斌
Owner NANJING TIANBEN SAFETY TECH
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