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Bidirectional flame arrester

A technology of flame arrester and two-way movement, which is applied in fire rescue and other directions

Active Publication Date: 2008-05-14
HUAINAN MINING IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no applicable downhole two-way flame arrester at home and abroad so far.

Method used

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  • Bidirectional flame arrester

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Effect test

Embodiment Construction

[0020] Referring to Fig. 1, the two-way flame arrester is provided with upper and lower airflow passages.

[0021] The middle part of the upper air flow channel is a flat valve core 5 that can move bidirectionally along the direction of air flow. A blocking plate 6 is arranged on both sides of the flat valve core 5. A circular channel 7 is arranged on the blocking plate 6. The flat valve core 5 has two State, one is that the flat valve core 5 is between the blocking plates 6 on both sides and is separated from the blocking plates 6 on both sides. The spool 5 forms abutment against the side blocking plate 6 due to the impact of the air pressure, and the upper air flow channel is closed;

[0022] The lower air flow channel is a water-sealed channel, and it is connected to the bottom of the upper air flow channel. In the lower air flow channel, a water injection valve 1, an overflow pipe 8, a slag discharge valve 3 and a water cavity 2 connected with the upper air flow channel ar...

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Abstract

The invention relates to a bidirectional flame arrester, which is characterized in that: an upper airflow channel and a lower airflow channel are arranged; a flat valve core capability for moving bidirectionally along the airflow direction is arranged at the central section of the upper airflow channel; a blanking plate is arranged at two sides of the flat valve core respectively; a round channel is arranged on the blanking plate; the upper airflow channel is a water-sealed channel and is connected under the upper airflow channel; a water injection valve, a reject valve and a water cavity communicated with the upper airflow channel are arranged in the lower airflow channel respectively, and a lower water discharge device is arranged at the bottom of the lower airflow channel. The invention has the advantages that: the invention can be applied to places such as the joint of the uphill main pipe of the mining area and the mining pipe branch of the underground working surface, the uphill lower port of the mining area, the shaft station, and the lower port of standpipes from the ground to underground; fire arresting, water discharging and slag discharging can be realized; the catastrophe can be controlled within the minimum scope due to multilevel fire arresting when the catastrophe occurs.

Description

technical field [0001] The invention relates to a two-way flame arrester used in underground gas drainage pipelines in coal mining, specifically, it is installed before the point where the extraction branch pipe of the underground mining working face and the upper mountain main pipe of the mining area are combined, and at the upper and lower mouths of the mining area. , Two-way flame arrestors at the parking lot at the bottom of the well, and at the lower opening of the riser from the ground to the underground, so as to divide the underground gas drainage pipeline network into blocks and make them independent of each other. Once a catastrophe occurs, multi-stage flame arrestors can be realized Fire, to control the catastrophe to a minimum. Background technique: [0002] The gas concentration in the underground gas drainage pipeline is often within the gas explosion range. When the ground permanent or underground mobile system uses wet drainage pumps for gas drainage, there ...

Claims

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Application Information

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IPC IPC(8): A62C4/02
Inventor 袁亮金玉学范辰东
Owner HUAINAN MINING IND GRP
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