Coal mine gas drainage comprehensive parameter measuring device

Abstract

The utility model relates to the field of gas extraction technology, in particular to a coal mine gas extraction comprehensive parameter measuring device which comprises a gas main pipeline and a measuring instrument provided with a flow probe and a concentration probe. A plurality of locking type ball valve detection elbows are installed on the flange locking type junction station, drainage hoses are installed on the locking type ball valve detection elbows, and detection type corrugated butt joints are installed in the middles of the drainage hoses. A locking type orifice elbow used for being connected with a pipeline stretching into a drill hole to extract gas is installed at the end, away from the locking type ball valve detection elbow, of the drainage hose, a first detection opening allowing a probe to be inserted is formed in the flange locking type junction station, and a second detection opening allowing the probe to be inserted is formed in the detection type corrugated butt joint. A worker can selectively insert a probe into the first detection opening and the second detection opening to measure the gas concentration and flow, and the device is convenient to use, high in measurement accuracy and high in safety.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of gas extraction technology, especially to a coal mine gas extraction comprehensive parameter measuring device. BACKGROUND

[0002] Gas parameter measurement plays an important role in ensuring coal mine safety production, reducing gas hazards, improving resource utilization efficiency and environmental protection.

[0003] The main parameters of gas parameter measurement include concentration, flow, negative pressure and temperature, etc. By measuring gas extraction parameters, the gas concentration in the mine can be monitored and controlled in real time, the risk of gas overrun can be reduced, and the safety production of the mine can be ensured. The gas pressure in the coal seam can be reduced to prevent coal and gas outburst and ensure the safety of miners.

[0004] Gas extraction can reduce the amount of gas emission in the mine, thereby reducing the difficulty of ventilation, reducing ventilation costs and improving the ventilation efficiency of the mine. Gas extraction is not only a safety measure, but also can collect and utilize the extracted gas as a resource for development, realizing effective utilization of resources. By extracting and utilizing gas, methane emission into the atmosphere can be reduced, thereby reducing environmental pollution.

[0005] Therefore, gas parameter measurement is very important, and how to effectively perform this work to ensure the accuracy of the measurement results is the focus of research for those skilled in the art. UTILITY MODEL CONTENT

[0006] In order to accurately measure gas extraction parameters, the utility model provides a coal mine gas extraction comprehensive parameter measuring device.

[0007] The coal mine gas extraction comprehensive parameter measuring device provided by the utility model adopts the following technical scheme:

[0008] A coal mine gas extraction comprehensive parameter measuring device, comprising a gas main pipeline and a measuring instrument with a flow probe and a concentration probe, a flange locking type current collector is installed on the gas main pipeline, a plurality of locking type ball valve detection bends are installed on the flange locking type current collector, an extraction hose is installed on the locking type ball valve detection bend, a detection type corrugated butt joint is installed in the middle of the extraction hose, a locking type orifice bend for connecting with a pipeline for extracting gas into a borehole is installed at one end of the extraction hose away from the locking type ball valve detection bend, a detection port one for inserting a probe is arranged on the flange locking type current collector, and a detection port two for inserting a probe is arranged on the detection type corrugated butt joint.

[0009] Through the above technical scheme, the staff can selectively insert the probe into the detection port one and the detection port two to measure the gas concentration and flow, the device is convenient to use, high in measurement accuracy and high in safety.

[0010] Optionally, the flange locking type collector comprises a connecting part for connecting with the gas main pipeline and an extension part arranged obliquely downward, the connecting part and the extension part are connected through a tee pipe, the locking type ball valve detection elbow is distributed on the extension part, the detection port one is arranged on the tee pipe, one end of the extension part at a higher position is closed, and a hard pipe type ball valve is installed at one end of the extension part at a lower position.

[0011] Through the above technical scheme, the oblique extension part and the hard pipe type ball valve are designed, so that water in the extension part can be discharged in time, thereby effectively improving the accuracy of the detection result.

[0012] Optionally, the detection port one and / or the detection port two adopt the valve structure of soft sealing material.

[0013] Through the above technical scheme, the detection port one and / or the detection port two of the soft sealing material can avoid air or other gas from entering when the flow or concentration probe is inserted, so that the gas parameter in the borehole is not distorted. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of a coal mine gas drainage comprehensive parameter measuring device according to an embodiment of the present application.

[0015] The reference signs are explained as follows: 1, gas main pipeline; 2, flange locking type collector; 20, detection port one; 3, locking type ball valve detection elbow; 4, drainage hose; 5, detection type corrugated butt joint; 50, detection port two; 6, locking type orifice elbow; 7, hard pipe type ball valve. DETAILED DESCRIPTION

[0016] The present application is further explained in detail as follows. Figure 1 The present application is further explained in detail as follows.

[0017] An embodiment of the present application discloses a coal mine gas drainage comprehensive parameter measuring device. Figure 1 The coal mine gas drainage comprehensive parameter measuring device comprises a gas main pipeline 1, a flange locking type collector 2, a locking type ball valve detection elbow 3, a drainage hose 4, a detection type corrugated butt joint 5, a locking type orifice elbow 6, a hard pipe type ball valve 7 and a measuring instrument, and the measuring instrument adopts a finished measuring instrument with a concentration probe and a flow probe.

[0018] The flange locking type collector 2 is installed on the gas main pipeline 1, and comprises a connecting part connected perpendicularly with the gas main pipeline 1 and an extension part parallel to the gas main pipeline 1, the connecting part and the extension part are connected through a tee pipe, and a detection port one 20 is arranged on the tee pipe, the detection port one 20 adopts a valve structure of soft sealing material, so as to seal when a probe of a measuring instrument is inserted and after being removed.

[0019] The locking type ball valve detection elbow 3 is provided with five and is uniformly installed on the flange locking type collector 2 along the length direction of the flange locking type collector 2, and the drainage hose 4 is also provided with five and is connected in correspondence with the five locking type ball valve detection elbows 3. The detection type corrugated butt joint 5 is installed in the middle of the drainage hose 4, and the detection type corrugated butt joint 5 is provided with a detection port two 50, and the detection port two 50 adopts a valve structure of soft sealing material, so as to seal when a probe of a measuring instrument is inserted and after being removed.

[0020] The locking type orifice elbow 6 is provided with five and is correspondingly installed at one end of the five drainage hoses 4 away from the locking type ball valve detection elbow 3, and the locking type orifice elbow 6 is used for being connected with a pipeline extending into a borehole to extract gas. The extension part of the flange locking type collector 2 is integrally arranged in a downward inclined manner, one end of the flange locking type collector 2 at a higher position is closed, and the hard pipe type ball valve 7 is installed at one end of the flange locking type collector 2 at a lower position, and is used for timely draining water accumulated in the flange locking type collector 2.

[0021] The working principle of the coal mine gas drainage comprehensive parameter measuring device is that: the staff inserts the concentration measuring probe of the measuring instrument into the detection port one 20 or the detection port two 50 to measure the gas concentration, and inserts the flow measuring probe of the measuring instrument into the detection port one 20 or the detection port two 50 to measure the gas flow, so that various parameters can be measured; a plurality of detection ports are arranged, the convenience and accuracy of measurement are effectively improved, when one of the detection ports is inconvenient to measure, another detection port can be used for measurement in time; the detection port one 20 and the detection port two 50 of the soft sealing material can avoid air or other gas entering when the flow or concentration probe is inserted, so that the gas parameter in the borehole is distorted. The coal mine gas comprehensive parameter measuring device is convenient to use, high in measurement accuracy and high in safety.

[0022] The above are preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A device for measuring comprehensive parameters of coal mine gas drainage, characterized in that: The application relates to a gas main pipeline (1) and a detector with a flow probe and a concentration probe, wherein a flange locking type manifold (2) is installed on the gas main pipeline (1), a plurality of locking type ball valve detection elbows (3) are installed on the flange locking type manifold (2), a drainage hose (4) is installed on the locking type ball valve detection elbow (3), a detection type corrugated butt joint (5) is installed in the middle of the drainage hose (4), a locking type orifice elbow (6) for connecting with a pipeline for extracting gas from a borehole is installed at one end of the drainage hose (4) away from the locking type ball valve detection elbow (3), and a detection port one (20) for inserting a probe is arranged on the flange locking type manifold (2), and a detection port two (50) for inserting a probe is arranged on the detection type corrugated butt joint (5).

2. The coal mine gas drainage comprehensive parameter measuring device according to claim 1, characterized in that: The flange locking type manifold (2) comprises a connecting part for connecting with the gas main pipeline (1) and an extension part arranged obliquely downward, the connecting part and the extension part are connected through a tee pipe fitting, the locking type ball valve detection elbows (3) are distributed on the extension part, the detection port one (20) is arranged on the tee pipe fitting, one end of the extension part at a higher position is closed, and a hard pipe type ball valve (7) is installed at one end of the extension part at a lower position.

3. The coal mine gas drainage comprehensive parameter measuring device according to claim 1 or 2, characterized in that: The detection port one (20) and / or the detection port two (50) adopt a gas valve structure of soft sealing material.

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