Automatic type detonation-hindered flame arrester

Abstract

The invention relates to an automatic type detonation-hindered flame arrester, which belongs to the technical field of chemical engineering machinery. The automatic type detonation-hindered flame arrester is characterized in that: the flame arrester comprises a sensitization element, a control circuit, an actuating mechanism, a sliding flame retardant core mechanism, a power mechanism and a resetting mechanism, wherein the sensitization element consists of optical fibers, a metal pad and upper part and lower part sealing gaskets; an electric control mould box of the control circuit contains asilicon photodiode, a single-chip microcomputer, and a signal transmitter which is used when the resetting mechanism is manual; the single-chip microcomputer detects, receives and times electric signals from the silicon photodiode and the signal transmitter and controls the starting of external and internal electric control sticking points; the actuating mechanism is the internal and external electric control sticking points; the sliding flame retardant core mechanism consists of a flame retardant core and a flame arrestor casing; the power mechanism is a bursting power source such as a big spring; and the resetting mechanism comprises a metal chain, a fixed rotating shaft, a mobile rotating shaft and a power source. The automatic type denotation-hindered flame arrester has the advantagesthat: the flame arrester cannot only extinguish flame to realize the aim of flame retardation if the flame exists, but also have nearly zero resistance to gas if no flame exists.

Description

technical field [0001] The invention belongs to the technical field of chemical machinery and relates to a fire arresting device for preventing the deflagration of combustible gas in a pipeline. Background technique [0002] Industrial accidents caused by combustible gas explosions in pipelines occur from time to time, directly affecting normal production and personal safety. For this reason, people have studied a large number of technologies and devices to prevent and suppress combustible gas combustion explosions. Research on the combustion and explosion process of combustible gases in pipelines A relatively systematic theory has been formed, and there are many methods and technologies to suppress the combustion of combustible gas. At present, the main method is to install a flame arrester in the pipeline. The structure of the flame arrester is generally made of wire mesh or metal plate, etc., and is installed in the middle of the pipeline by flange connection, and the fla...

AI Technical Summary

Problems solved by technology

[0005] However, whether it is a wire mesh flame arrester or a metal plate flame arrester, the resistance loss generated during the pipeline transportation of gas is very large

Because the gas always flows through the gap structure of the flame arrester, this causes a certain gas supply resistance, which is unnecessary when there is no fire

The energy loss caused by this resistance in a short period of time may not be obvious, but the gas transportation is often continuous day and night for years, so the energy loss will be greatly increased

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