Connection device used for gas drainage pipeline testing hole
A connection device and gas drainage technology, applied in the direction of gas discharge, branch pipelines, safety devices, etc., can solve the problems of gas leakage in test holes, waste of materials, difficult management, etc., and achieve stable operation ports, accurate data, and gas connections. The effect of improving the density
Inactive Publication Date: 2015-04-15
刘宁川
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Problems solved by technology
Although the method of reserving test holes in the traditional process is relatively simple and feasible, there are many shortcomings, such as: serious waste of materials, frequent air leakage from test holes, easy loss or bending of plastic side air hole screws, and difficult management, etc.
Method used
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Embodiment Construction
[0011] The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:
[0012] see figure 1 : a connection device for gas drainage pipeline test hole, including buried pipe 3, said buried pipe 3 is connected with a sealing elbow 5 through a throat hoop 2, and a port of the sealing elbow 5 is set There is a flange 4, and a copper valve 1 is arranged on the outer wall of the sealing elbow 5.
[0013] The diameter of the flange 4 is 108mm.
[0014] The diameter of the buried pipe 3 is 127mm.
[0015] The gas measuring hole of the present invention is controlled by a recyclable valve; the connection between the sealing elbow and the buried pipe is fastened by a throat hoop; the sealing elbow is connected to the drainage pipeline through a flange;
[0016] The steps of the present invention for testing parameters such as gas drainage concentration and negative pressure in a single gas drainage hole are as follows: a measurin...
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The invention relates to a connection device used for a gas drainage pipeline testing hole. According to the technical scheme, the connection device comprises a buried pipe, wherein the buried pipe is connected with a hole sealing elbow through a hose clamp, a flange is arranged at a port of the hole sealing elbow, a valve is arranged on the outer wall of the hole sealing elbow, the diameter of the flange is 108 mm, the diameter of the buried pipe is 127 mm, and the valve is a copper valve. Adjustment and measurement show that the effect is quite obvious after refitting is conducted; in the testing process, the connection air tightness of a testing opening is obviously improved; in the measurement process, an operation port is stable, and the connection device is more convenient to use; data of measurement are more accurate, and the expected effect is achieved.
Description
1. Technical field: [0001] The invention relates to a connection device for a test hole of a gas drainage pipeline. 2. Background technology: [0002] China has a long history of coal mining. As the years of mining increase and the depth of coal mining increases, the metamorphism of coal seams changes accordingly. Gas disasters become more and more serious, and gas control becomes more and more important. The Dafosi Coal Mine, which is a high-gas mine, is the focus of our mine's work on gas control. Controlling the underground gas content, preventing gas leakage, and increasing the concentration of gas extraction are effective measures for gas control. In the gas control work, the connection of the existing coal mine underground drainage pipeline is to use the buried pipe to connect the drainage bore hole and the branch pipeline. In order to test parameters such as gas drainage concentration and negative pressure in a single gas drainage borehole, a test hole is reserved at...
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IPC IPC(8): F16L43/02F16L41/02E21F7/00
CPCF16L43/02E21F7/00F16L55/07
Inventor 刘宁川王福军高建平杨朝
Owner 刘宁川