A Gas Drainage Borehole Sealing Detection Device and Detection Method

A sealing detection and gas extraction technology, which can be used in liquid/vacuum measurement for liquid tightness, and by measuring the acceleration and deceleration rate of fluid. The effect of sealing holes is not ideal, so as to achieve the effect of convenient learning and operation, small space occupation, and few buttons

Active Publication Date: 2019-07-26
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, each method is difficult to fully guarantee the quality of the sealing
[0003] According to the existing technology, it is difficult to judge the sealing effect after sealing; if the sealing effect is not satisfactory, it is difficult to find the leakage point and perform secondary sealing, so a device that can quickly judge the sealing quality is urgently needed

Method used

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  • A Gas Drainage Borehole Sealing Detection Device and Detection Method
  • A Gas Drainage Borehole Sealing Detection Device and Detection Method
  • A Gas Drainage Borehole Sealing Detection Device and Detection Method

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Such as figure 1 As shown, a gas drainage borehole sealing detection device of the present invention includes: a pressure sensor 3 for detecting real-time pressure, a flow meter 11 with a built-in flow sensor, a sealing sleeve 4, and a device for judging and feeding back the detection results. A gas drainage hole sealing tester 6, one end of the sealing sleeve 4 is open, and two holes are opened in the middle of the other end, the opening end of the sealing sleeve 4 is fixed on the coal wall 2, the pressure sensor 3 through a hole in the sealing sleeve 4 and vertically inserted into the gas drainage borehole 1 in the coal wall 2, one end of the flow meter 11 is connected to the hard conduit 12, and the other end is connected to the soft conduit 10, so The hard conduit 12 is vertically inserted into the gas extraction borehole ...

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Abstract

The invention discloses a gas extraction borehole sealing detection device and a detection method. The device comprises a pressure sensor, a flow meter, a sealing sleeve and a gas extraction borehole sealing detector. One end of the sealing sleeve is opened and two holes are opened in the middle of the other end, and the open end of the sealing sleeve is fixed on a coal wall. The pressure sensor passes through one hole of the sealing sleeve to vertically insert into a borehole. One end of the flow meter is connected with a hard conduit, and the other end of the flow meter is connected with a flexible conduit. The hard conduit passes through the other hole of the sealing sleeve to vertical insert into the borehole, and the flexible conduit is connected with an air pump. The pressure sensor and the flow meter are connected with the gas extraction borehole sealing detector through leads and are parallel to each other. The device is convenient to carry and simple to operate, the sealing detection of different boreholes can be achieved, the detection time is short, and the result is reliable.

Description

technical field [0001] The invention relates to the technical field of coal safety monitoring, in particular to a gas drainage borehole sealing performance detection device and detection method. Background technique [0002] Among the five types of disaster accidents in my country's coal industry, coal seam gas disasters have become one of the most serious accident types in the coal mine production process in recent years due to their characteristics of large damage, many casualties, and high accident frequency. In coal mining, the extraction rate is directly related to the sealing effect of the borehole. The existing sealing methods mainly include: cement mortar sealing, yellow mud sealing, polyurethane sealing and traditional hole sealing. But each method is difficult to fully guarantee the quality of sealing. [0003] According to the existing technology, it is difficult to judge the sealing effect after sealing; if the sealing effect is not satisfactory, it is difficul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 刘春张浩峰丁前程薛劲
Owner CHINA UNIV OF MINING & TECH
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