Novel overpressure protector for coal gas drainer

Abstract

The invention relates to a novel overpressure protector for coal gas drainer, which is applicable to various field situations. The invention comprises a gas-water separator and a leakage stopping device which is connected with the gas-water separator, and is characterized in that the gas-water separator is composed of a water baffle, a gas-guide tube for gas-water separator and a draft tube for gas-water separator, wherein, the water baffle is arranged in the inner side of the water inlet of a drain pipe of the leakage stopping device and is connected with the upper part of the drain pipe of the leakage stopping device; the gas-guide tube for gas-water separator is arranged on the water baffle; the draft tube for gas-water separator is connected with the lower part of the drain pipe of the leakage stopping device; the upper surface of the outlet of the gas water separator draft pipe is on the same horizontal line with the bottom end of the valve cap of the leakage stopping device in vertical state; the valve cap with a sealing ring in the leakage stopping device is manufactured by adopting materials with buoyance force characteristics. Compared with current overpressure protector for coal gas drainer, the invention has simpler structure, no flexible parts, easy manufacturing, convenient checking and maintenance, reliable performance and long service life; the critical zone is zero; the invention can restrain tightly overpressure coal gas, drain away water in great quantities unobstructedly, and prevent the evaporation of water content.

Description

technical field [0001] The invention relates to the field of gas pipeline drainer facilities, in particular to a novel gas drainer overvoltage protector applicable to various site conditions. Background technique [0002] In the gas pipeline, there will inevitably be accumulated water and slag, therefore, it is necessary to use a drainer to discharge it, but the gas pressure cannot exceed the water seal height of the drainer, otherwise the gas will leak in large quantities. In order to solve the problems referred to above, people have developed drainer overpressure protector or the device that prevents gas from leaking. Chinese patent 200520093626.8 discloses an overpressure protector for drains. This protector is mainly composed of an anti-leakage device that prevents gas overpressure from leaking and an anti-volatile device that prevents moisture from volatilizing. The annular blocking plate in the drain pipe of the device is composed of the bracket fixed on the upper par...

AI Technical Summary

Problems solved by technology

[0005] 2) When the drainer discharges a large amount of water, the high-speed flowing water will impact the valve cover, causing the valve cover to tightly seal the short water inlet pipe and unable to drain water, which will cause the overpressure protector or other gas leakage prevention devices to automatically close, resulting in an error action, causing blockage of drainage, easy to increase the load of the gas pipeline, and the risk of collapse

[0006] 3) The annular water outlet plate of the anti-volatile device is prone to slagging, which affects the normal operation of the anti-volatile device

But this structure is relatively complex

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