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Borehole gas blowout preventer

A blowout preventer and gas technology, which is applied in wellbore/well valve device, earthwork drilling, wellbore/well components, etc., can solve the hidden danger of gas drainage system safety, waste power resources, and reduce the performance of the drainage system and other problems to achieve the effect of saving power resources, ensuring production safety, and protecting performance

Active Publication Date: 2014-07-23
HUAINAN MINING IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This increases the burden on the gas drainage system, wastes power resources, and easily causes a large amount of pulverized coal slag to be sucked into the gas drainage pipeline, thereby reducing the performance of the drainage system and bringing safety hazards to the gas drainage system

Method used

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  • Borehole gas blowout preventer
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  • Borehole gas blowout preventer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] figure 1 The structure schematic diagram of the drilling gas blowout prevention device provided for an embodiment of the present invention, such as figure 1 As shown, the device includes: a power supply 1, a gas sensor 2, a control valve 3, a gas drainage pipeline 4, a gas collector 5 and a control box 6;

[0023] Among them, the power supply 1 supplies power to the gas sensor 2 and the control valve 3; the gas sensor 2 is connected to the control box 6, and is used to detect that the gas concentration sprayed from the bore hole reaches the set value, and outputs a power-off signal to the control box 6, The control box 6 is connected to the control valve 3, and is used to output a power signal to the control valve 3 or to close the power signal, so that the control valve 3 opens or closes the gas drainage pipeline 4 connected thereto; the control valve 3 is also connected to the gas collector 5 Connected, the gas drainage pipeline 4 collects the gas ejected from the bo...

Embodiment 2

[0027] figure 2 A structural schematic diagram of a drilling gas blowout prevention device provided for another embodiment of the present invention, as shown in figure 2 As shown, the device includes: a power supply 1, a gas sensor 2, a control valve 3, a gas drainage pipeline 4, a gas collector 5 and a control box 6;

[0028] Among them, the power supply 1 supplies power to the gas sensor 2 and the control valve 3; the gas sensor 2 is connected to the control box 6, and is used to detect that the gas concentration sprayed from the bore hole reaches the set value, and outputs a power-off signal to the control box 6, The control box 6 is connected to the control valve 3, and is used to output a power signal to the control valve 3 or to close the power signal, so that the control valve 3 opens or closes the gas drainage pipeline 4 connected thereto; the control valve 3 is also connected to the gas collector 5 Connected, the gas drainage pipeline 4 collects the gas ejected fro...

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Abstract

The invention provides a borehole gas blowout preventer which comprises a power supply, a gas sensor, a control valve, a control box, a gas extraction pipeline and a gas collector, wherein the power supply supplies the power to the gas sensor and the control valve; the gas sensor is connected with the control box and used for detecting whether the concentration of the gas which is blown out of a borehole opening reaches the set value or not, and the gas sensor transmits a power-off signal to the control box; the control box is connected with the control valve and used for transmitting power supply signals or closing the power supply signals to the control valve, thereby enabling the control valve to open or close the gas extraction pipeline which is connected with the control valve; the control valve is also connected with the gas collector; and the gas extraction pipeline collects the gas which is blown out of the borehole opening through the gas collector. The embodiment of the invention reduces the burden of a gas extraction system, saves power resources and avoids a gas exhaust pipeline from sucking a large quantity of pulverized coal dregs, thereby protecting the performance of the gas exhaust system and guaranteeing the production safety.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of mining, and in particular to a drilling gas blowout prevention device. Background technique [0002] At present, gas control in underground mines has become an important issue in production and disaster prevention. The most effective means of gas control is gas drainage. Gas drainage cannot be separated from drilling construction, but the phenomenon of gas ejection during drilling has an impact. The difficult problem of drilling construction safety. [0003] The drilling gas blowout prevention device used for absorbing drilling gas in the prior art is to connect the gas collector directly to the pipeline of the gas drainage system through a hose. Suction the gas emitted from the drilling hole. This increases the burden on the gas drainage system, wastes power resources, and easily causes a large amount of pulverized coal slag to be sucked into the gas drainage pipeline, thereby...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/06E21B34/02
Inventor 刘结高李应辉李秀山李冠群岳员朱永松
Owner HUAINAN MINING IND GRP