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Flame arrester with self-cleaning function

A flame arrester and self-cleaning technology, which is applied in cleaning methods and appliances, cleaning methods using gas flow, fire rescue, etc., can solve the problems of easy blockage of flame arresters, so as to prevent the spread of flames, improve fire arresting efficiency, Effect of reducing combustible gas and oxygen concentration

Pending Publication Date: 2019-07-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is the problem that the flame arrester in the prior art is prone to blockage, and a new flame arrester with self-cleaning function is provided, which has the advantage that the flame arrester is not easy to be blocked

Method used

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  • Flame arrester with self-cleaning function

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Effect test

Embodiment 1

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Such as figure 1 A new flame arrester with self-cleaning function is shown, which includes a flame arrester housing 1, a left flame arresting element 2, a right flame arresting element 3, a nitrogen injection channel 4, and a nitrogen throttle valve 5.

[0022] The flame arrester casing is a metal casing that provides mechanical support and connections for the fire arresting element, and the metal is stainless steel. The fire retardant element has a porous structure, which plays a role in extinguishing the flame, and the porosity of the porous structure of the fire retardant element is 5%. The fire retardant element material is selected from stainless steel. The height of the gas injection pipeline deep into the gas injection channel is 20% of the height of the gas injection channel. According to the gas flow direction, the gas pressure before the gas ...

Embodiment 2

[0028] According to the conditions described in Embodiment 1, the shell of the flame arrester is a metal shell that provides mechanical support and connection of the fire arresting element, and the metal is carbon steel. The fire retardant element has a porous structure, which plays the role of extinguishing the flame, and the porosity of the porous structure of the fire retardant element is 80%. The material of the fire retardant element is selected from superalloy. The height of the gas injection pipeline deep into the gas injection channel is 80% of the height of the gas injection channel. According to the gas flow direction, the gas pressure before the gas throttle valve is 0.6MPa, the temperature is 15°C, the gas pressure after the gas throttle valve is 20kPa, and the temperature is 10°C. The ratio of the total volume of the fire retardant element to the volume of the gas injection channel is 1:5.

[0029] After the external nitrogen is decompressed and cooled through t...

Embodiment 3

[0034] According to the conditions described in Embodiment 1, the shell of the flame arrester is a metal shell that provides mechanical support and connection of the fire arresting element, and the metal is stainless steel. The fire retardant element has a porous structure, which plays the role of extinguishing the flame, and the porosity of the porous structure of the fire retardant element is 50%. The material of the fire retardant element is selected from aluminum. The height of the gas injection pipeline deep into the gas injection channel is 50% of the height of the gas injection channel. According to the gas flow direction, the gas pressure before the gas throttle valve is 0.4MPa, the temperature is 25°C, the gas pressure after the gas throttle valve is 10kPa, and the temperature is 20°C. The ratio of the total volume of the fire retardant element to the volume of the gas injection channel is 1:1.

[0035] After the external nitrogen is decompressed and cooled through ...

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Abstract

The invention relates to a flame arrester with a self-cleaning function. The flame arrester mainly solves the problem that a flame arrester in the prior art is likely to be blocked. The flame arresterwith the self-cleaning function comprises a flame arrester shell, at least two flame retardant elements, a gas injection channel and a gas throttle valve, the flame retardant elements are distributedon the two sides in the flame arrester, a gas injection channel is arranged between the flame retardant elements, a gas injection pipeline is arranged on the gas injection channel, and a gas throttlevalve is arranged on the portion, outside the flame arrester shell, of the gas injection pipeline. By adopting the technical scheme, the problem is well solved, and the flame arrester can be used forarresting flame propagation.

Description

technical field [0001] The invention relates to a flame arrester with self-cleaning function. Background technique [0002] A flame arrester is a device used to prevent the flame propagation of flammable gases and flammable liquid vapors. It is usually installed on the inlet and outlet of the device or on the pipeline. Its function is to allow the medium to flow, but it must be able to extinguish the flame. The key of the flame arrester is the flame arresting element. The principle of extinguishing the flame is to quickly reduce the flame temperature through heat transfer, and at the same time reduce the concentration of active free radicals in the flame through the wall effect, so that the chemical reaction in the flame slows down until it stops, and the flame is stopped. spread. [0003] Existing flame arresters mostly use corrugated plate fire arresting elements, which are made of stainless steel and have a porous structure. When the flame passes through the stainless st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C4/02B08B5/02
CPCA62C4/02B08B5/02
Inventor 于安峰张杰东王平平党文义韩中枢
Owner CHINA PETROLEUM & CHEM CORP
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