CN204716225U - Perform hole gas Natural Attenuation flow measurement device on a kind of colliery - Google Patents
Perform hole gas Natural Attenuation flow measurement device on a kind of colliery Download PDFInfo
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- CN204716225U CN204716225U CN201520449568.1U CN201520449568U CN204716225U CN 204716225 U CN204716225 U CN 204716225U CN 201520449568 U CN201520449568 U CN 201520449568U CN 204716225 U CN204716225 U CN 204716225U
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Abstract
Perform hole gas Natural Attenuation flow measurement device on a kind of colliery, comprise the inlet tube inserted in coal in upper perform hole, inlet tube lower end is connected with valve, valve lower end is connected to threeway, the vertical section of threeway exports upward and is connected with gas flowmeter, gas flowmeter is connected to escape pipe, the hypomere of threeway is connected with water tank by flange, the right side of water tank is provided with content gauge, content gauge is connected with controller by data wire, and the signal output part of controller adopts data wire to be connected with the control valve being positioned at water tank bottom.This device effectively can prevent the impact of perform hole draining on certainty of measurement and the damage of measuring apparatus, and can realize the Auto-drainage of water tank, easy and simple to handle, contributes to practical implementation.
Description
Technical field
The utility model relates to perform hole gas Natural Attenuation flow measurement device on a kind of colliery, is particularly useful for the flow measurement in perform hole during gas Natural Attenuation on colliery.
Background technology
Coal is the main primary energy of China, and in progress of coal mining, composing the gas be stored in coal can discharge.When gas gathers in a large number, easily cause the accidents such as gas explosion, become the potential safety hazard in colliery.For this reason, the mode of Coal Exploitation gas pumping is removed a hidden danger.In the coal formed under different geological conditions, to compose the gas amount deposited be different.Coal containing gas situation be determine the important evidence of gas pumping scheme.By punching in coal seam, changes in flow rate when measuring gas Natural Attenuation (not adding negative pressure) intuitively can weigh the gas bearing situation in coal seam, is a kind of important research means.But coal mining geology complicated condition is changeable, a lot of geological conditions usually needs to stamp perform hole to monitor the Natural Attenuation situation of gas.Due to Action of Gravity Field, the water in coal seam in upper perform hole inflow gas flow meter, not only have impact on the accuracy that gas flow is measured, and overlong time can damage instrument.Thus, the gas Natural Attenuation flow measurement for upper perform hole becomes a difficult problem.
Summary of the invention
Technical problem: the purpose of this utility model damages instrument for the coal seam water occurred when measuring gas flow change in upper perform hole and affect certainty of measurement problem, provides perform hole gas Natural Attenuation flow measurement device on a kind of colliery.
Technical scheme: perform hole gas Natural Attenuation flow measurement device on colliery of the present utility model, comprise the inlet tube inserted in coal body, the revealed section of inlet tube is provided with valve, and be connected with an escape pipe perpendicular with inlet tube through threeway, there is a water tank termination of exposing of described inlet tube through Flange joint, described water tank upper is provided with content gauge, bottom is provided with control valve, described content gauge is connected with a controller through data wire, the signal output part of controller through data wire be positioned at the control valve that water tank bottom arranges and be connected.
Described escape pipe is provided with gas flowmeter.
Beneficial effect: the utility model inserting, the inlet tube in coal body picks out the water tank of tracheae and water, methane gas in coal body is separated with water, can perform hole gas Natural Attenuation flow in real-time monitored by being located at gas flowmeter on escape pipe, water level in water tank can be controlled by controller, keep the water in water tank can not discharge from water tank bottom.Major advantage is compared with prior art as follows:
1. go up water that perform hole discharges due to Action of Gravity Field in pipeline no longer by methane gas flow meter, and flow directly into water tank, thus, this device contributes to the precision and the shield gas flow rate meter that improve methane gas flow measurement;
2. the SEA LEVEL VARIATION in water tank can be fed controller by level gauge, then is realized the opening and closing of cistern water-discharging valve by controller, and this automatic drain system decreases manually-operated triviality, improves efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of perform hole gas Natural Attenuation flow measurement device on the utility model colliery;
In figure: 1-gas flowmeter, 2-water tank, 3-escape pipe, 4-sealing material, 5-flange, 6-data wire, 7-threeway, 8-content gauge, 9-valve, 10-controller, 11-control valve, 12-inlet tube, 13-coal body, 14-rib.
Detailed description of the invention
Below in conjunction with accompanying drawing, an embodiment of the present utility model is further described:
Perform hole gas Natural Attenuation flow measurement device on colliery of the present utility model, form primarily of the inlet tube 12, water tank 2, escape pipe 3, content gauge 8, controller 10 and the control valve 11 that insert in coal body 13, the revealed section of described inlet tube 12 is provided with valve 9, and being connected with an escape pipe 3 perpendicular with inlet tube 12 through threeway 7, described escape pipe 3 is provided with gas flowmeter 1; The termination of exposing of inlet tube 12 is connected with a water tank 2 through flange 5, described water tank 2 top is provided with content gauge 8, bottom is provided with control valve 11, described content gauge 8 is connected with a controller 10 through data wire 6, the signal output part of controller 10 through data wire be positioned at the control valve 11 that water tank 2 bottom arranges and be connected.
As shown in Figure 1, inlet tube 12 is inserted in the interior upper perform hole of coal 13, outside rib 14 end entrance pipe 12, be filled with sealing material 4 realize shutoff, inlet tube 12 lower end is connected with valve 9, valve 9 lower end connecting tee 7, the vertical section of threeway 7 exports upward and is connected with gas flowmeter 1, gas flowmeter 1 connects escape pipe 3, the hypomere of threeway 7 is connected with water tank 2 by flange 5, the right side of water tank 2 arranges content gauge 8, content gauge 8 is connected with controller 10 by data wire 6, the signal output part of controller 10 adopts data wire 6 to be connected with the control valve 11 being positioned at water tank 2 bottom, described sealing material 4 is polyurethane or PD material, described water tank 2 shape is cylinder or cube.
Operating principle: compose water in the methane gas and coal seam deposited in coal by inlet tube access to plant, due to the effect of gravity, water can flow directly in water tank and accumulate, due to the fluid-tight effect of water, methane gas can not flow out from the gutter of water tank, can only be discharged by the vertical end of threeway, thus, the flow of gas Natural Attenuation can be read by the gas flowmeter being located at threeway vertical end, simultaneously, when the water in water tank is constantly accumulated, until when exceeding the maximum level of setting, controller can open the water in control valve discharge water tank, when liquid level drops to the minimum liquid level of setting, namely maintain when the liquid level of fluid-tight effect is play to methane gas, controller 10 is closed control valve 11 again.
Claims (2)
1. perform hole gas Natural Attenuation flow measurement device on a colliery, it is characterized in that: it comprises the inlet tube (12) inserted in coal body (13), the revealed section of inlet tube (12) is provided with valve (9), and be connected with an escape pipe (3) perpendicular with inlet tube (12) through threeway (7), the termination of exposing of described inlet tube (12) is connected with a water tank (2) through flange (5), described water tank (2) top is provided with content gauge (8), bottom is provided with control valve (11), described content gauge (8) is connected with a controller (10) through data wire (6), the signal output part of controller (10) through data wire be positioned at the control valve (11) that water tank (2) bottom arranges and be connected.
2. perform hole gas Natural Attenuation flow measurement device on a kind of colliery according to claim 1, is characterized in that: described escape pipe (3) is provided with gas flowmeter (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520449568.1U CN204716225U (en) | 2015-06-26 | 2015-06-26 | Perform hole gas Natural Attenuation flow measurement device on a kind of colliery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520449568.1U CN204716225U (en) | 2015-06-26 | 2015-06-26 | Perform hole gas Natural Attenuation flow measurement device on a kind of colliery |
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| Publication Number | Publication Date |
|---|---|
| CN204716225U true CN204716225U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520449568.1U Active CN204716225U (en) | 2015-06-26 | 2015-06-26 | Perform hole gas Natural Attenuation flow measurement device on a kind of colliery |
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| CN (1) | CN204716225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912540A (en) * | 2015-06-26 | 2015-09-16 | 中国矿业大学 | A coal mine ascending hole gas natural attenuation flow measuring device and method |
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2015
- 2015-06-26 CN CN201520449568.1U patent/CN204716225U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912540A (en) * | 2015-06-26 | 2015-09-16 | 中国矿业大学 | A coal mine ascending hole gas natural attenuation flow measuring device and method |
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