A pipeline deflagration flame arrester

A flame arrester and pipeline technology, used in fire rescue and other directions, can solve the problems of unreliable fire resistance, easy blockage, and large fluid resistance of the flame arrester, and achieve the effect of clear function division, easy maintenance, and high fire resistance reliability.

Active Publication Date: 2021-12-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of the current flame arrester, such as large fluid resistance, easy blockage, and unreliable fire arresting performance, the present invention provides a pipeline deflagration flame arrester, which can realize the separation of flame arrester flow performance and fire arresting performance, that is, under normal working conditions, The flame arrester is through, there is no conventional fire arresting element, and the gas phase flow resistance is close to zero; when the flame spreads in the pipeline, the flame arrester blocks the fire arresting channel under the condition of the liquid seal and the mechanical seal of the flame arrester, which plays a role The effect of completely isolating the flame and then blocking the fire

Method used

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  • A pipeline deflagration flame arrester
  • A pipeline deflagration flame arrester
  • A pipeline deflagration flame arrester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] ①Working process of the flame arrester under normal working conditions:

[0048] Under normal working conditions, the gas medium in the pipeline or storage tank circulates in the pipeline 2, and enters the next device through the flame arrester channel in the direction of the arrow.

[0049]In this process, the resistance suffered by the gas medium in the circulation process is the resistance loss caused by the friction resistance in the pipeline, the elbow resistance and the gravity difference; compared with the conventional flame arrester, it is blocked by the multi-layer fire arresting unit, and its resistance loss is higher than that of the conventional flame arrester. greatly reduced.

[0050] During this process, the fire retardant sheet and the like are at the position of the fire retardant sheet 7, which does not affect the normal flow of gas.

[0051] Since the pipeline flame arrester is a two-way symmetrical structure, the gas from 1 or 16 in the figure is re...

Embodiment 2

[0053] ②Working process of the flame arrester against deflagration (right side, flame 1 direction in the pipeline):

[0054] When the flame spreads in the form of deflagration in the pipeline, the flame 1 in the pipeline propagates in the pipeline 2, and after the flame sensor 3 detects the signal of the flame 1 in the pipeline, it sends the signal to the response cut-off actuator 4 in time, and the response cuts off the actuator 4 instantly Open the liquid container 9, the liquid in the liquid container 9 quickly enters the flame arrester channel 11, forming a liquid cover 12 that submerges the flame arrester channel 11, forming a "dead pipe section". At the same time, when the liquid container 9 is opened, the flame arrester The seat return auxiliary mechanism 6-1 moves, and the flame arrester 7 returns Image 6 The middle 7-1 position closes the channel, thereby preventing the flame 1 in the pipeline from propagating downstream, and playing the role of fire resistance.

[...

Embodiment 3

[0057] ③Working process of the flame arrester deflagration resistance (left side, flame 16 direction in the pipeline):

[0058] When the flame spreads in the pipeline in the form of deflagration, the flame 16 in the pipeline propagates in the pipeline 2, and after the flame sensor 3 detects the signal of the flame 1 in the pipeline, it sends the signal to the response cut-off actuator 4 in time, and the response cuts off the actuator 4 instantly Open the liquid container 9, the liquid in the liquid container 9 quickly enters the flame arrester channel 11, forming a liquid cover 12 that submerges the flame arrester channel 11, forming a "dead pipe section". At the same time, when the liquid container 9 is opened, the flame arrester The auxiliary mechanism 6-2 moves back to the seat, and the fire retardant piece 7 returns Figure 7 The middle 7-2 position closes the passage, thereby preventing the flame 16 in the pipeline from propagating downstream, and playing the role of fire...

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Abstract

The invention provides a pipeline deflagration flame arrester, which includes a flame arrester body and a pipeline connected thereto. The fire piece back seat fixing mechanism, the flame arrester inner shell, the flame arrester shell and the liquid container, the flame arrester inner shell is set in the flame arrester shell, the liquid container is set in the flame arrester inner shell, and the liquid container is filled with non For flammable liquids, the auxiliary mechanism for returning the flame arrester to the seat is arranged on the upper inner wall of the flame arrester housing. The invention can realize the separation of flame arrester flow performance and fire arrester performance, that is, under normal working conditions, the flame arrester is through, there is no conventional fire arrester element, and the gas phase flow resistance is close to zero; when flame propagation occurs in the pipeline, the flame arrester In the case of the liquid seal and the mechanical seal of the fire retardant sheet, the fire retardant channel is blocked, and the effect of completely isolating the flame and then preventing the fire is achieved.

Description

technical field [0001] The invention relates to the technical field of flame arresters, in particular to a pipeline deflagration-resistant flame arrester. Background technique [0002] A flame arrester is a safety device suitable for installation in openings or pipework, the purpose of which is to allow the flow of the medium but prevent the spread of the flame. The working environment of the flame arrester determines that the flame arrester must have at least the following two aspects of performance, namely high-efficiency flame arresting performance and low pressure loss. [0003] The flame arrester generally consists of a flame arresting element and a flame arrester housing. The flame arresting element generally adopts a corrugated plate structure to prevent the flame from passing through, and the flame arrester shell cooperates with the flame arresting element to realize the fire arresting function. When the gas phase in the pipe circulates normally, the commonly used ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62C4/02
CPCA62C4/02
Inventor 鲍磊刘迪张杰东王鹏于安峰
Owner CHINA PETROLEUM & CHEM CORP
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