Individual overflow water seal fire relief and explosion release device

Abstract

The invention relates to an individual overflow water seal fire relief and explosion release device. The device provided by the invention is characterized by comprising a gas conveyer system, a wet gas safety bleeding valve and water seal fire arrestors, wherein the wet gas safety bleeding valve is arranged on a bypass pipeline of the gas conveyer system; the water seal fire arrestors are arranged at the starting end and tail end of the gas conveyer system; and each water seal fire arrestor comprises a shell, a gas inlet, a gas outlet, a gas conveyer pipe in the device, an explosion release port, an overflow drain tank and a liquid level control tank. The device provided by the invention can effectively achieve the effect of overflow water seal fire relief and explosion release. The device provided by the invention provides triple protection for stabilizing a liquid surface: (1) the gas inlet tail end is in a sawtooth shape, thereby segmenting large bubbles; (2) a pore plate under water enables the bubbles to be uniform; and (3) the overflow of the overflow drain tank is controlled. In the device provided by the invention, the drain frequency degree is low; the overflow drain tankhas the function of water storage and has the advantages of stable liquid surface and fewer times of water charging action; the pressure of the explosion release port can be set according to requirements; an explosion-proof rubber sheet is easy to exchange; and guardrails are arranged around the explosion release port, thus safety factors are high.

Description

technical field [0001] The invention relates to a single overflow water seal fire arresting and explosion venting device. Background technique [0002] With the generation of gas engines, the low-concentration gas extracted from coal mines has a new use—gas power generation. Under normal temperature and pressure, the explosion limit range of methane is 5-16%, and a large part of the gas concentration pumped by the coal mine gas drainage station is below 30%, which belongs to low-concentration gas, and there is a greater safety hazard in the transportation process. Hidden danger. The concentration and total amount of gas pumped by the coal mine drainage station fluctuate widely, and it is difficult to control the pipeline pressure during transportation. Sometimes the sudden stop of gas at the gas end will also cause a large increase in the pressure in the gas pipeline, endangering the safe operation of the water ring vacuum pump in the coal mine. In order to make better us...

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Problems solved by technology

[0003] At present, most of the single overflow water seal fire arresting and explosion venting devices on the market are complex in structure, the liquid level in the device fluctuates violently, the system replenishes and releases water frequently, and the pressure control is not accurate, etc.

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