Water and slag storage equipment for extraction pipeline

Abstract

The utility model discloses extraction pipeline water and slag storage equipment which comprises a box body, a main pipe connector flange plate and a high-pressure water connector are arranged on the top and the left side of the box body respectively, the main pipe connector flange plate is connected to a valve, the valve is installed at a low-lying point in a gas extraction pipeline or communicated with an extraction flow divider, and the high-pressure water connector is communicated with a high-pressure water pipe. A slag discharging opening and a water discharging opening are formed in the right side of the box body, the water discharging opening is higher than the slag discharging opening, the water discharging opening is connected into an automatic water discharging device, a pressure switching opening is further formed in the top of the box body, the pressure switching opening is connected to a switching three-way valve, and one port of the switching three-way valve is connected to a negative pressure extraction system. The internal space of the box body is used for providing a storage space for water, residues and the like in the pipeline, the high-pressure water connector is communicated with high-pressure water, and the box body is washed and discharged through the residue discharging opening.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of water and residue storage equipment of extraction pipeline, particularly relates to water and residue storage equipment of extraction pipeline. BACKGROUND

[0002] Under the current social development, coal will still be the main energy in China for a long period of time in the future, with the exhaustion of shallow resources to deep resources, the importance of mine outburst prevention work increases day by day, coal and gas outburst is an abnormal dynamic phenomenon that a large amount of coal and gas is suddenly thrown to the mining space under the joint action of ground stress and gas pressure, in the coal and gas outburst theory dominated by gas, it is considered that high coal body gas content and fast analysis speed lead to rapid increase of gas pressure in limited space, finally lead to coal body damage and outburst, therefore, reducing gas in coal and rock body in gas ionization state and adsorption state is the key to ensure effective development of outburst prevention work.

[0003] Most of the mines in the southwest region of China are close distance coal seam group mining, and most of them are coal and gas outburst coal seams, the coal mine geological structure is complex, the gas pressure is large, the content is high, the permeability is low and the outburst danger is strong, when preventing coal and gas outburst accidents in coal mining, the gas control of overlying and underlying coal seams should be considered, at the present stage, the gas in the coal body is pre-drained through the construction of extraction drilling, gas extraction becomes an important basis for judging the implementation of "one mine one strategy" and "one side one strategy", and is an important link to ensure safety production.

[0004] In the implementation of the "eight skills" of gas control, it is emphasized that the "gas zero overlimit" and "coal seam zero outburst" are the goals, gas extraction refinement must be promoted, the gas extraction level must be improved, the gas extraction work must be refined management, the effect of gas extraction must be improved, and the negative pressure and pipe diameter of the extraction system are the basis to ensure the gas extraction amount. At present, under the existing drilling construction process conditions, when high-pressure gas is used as the drilling construction deslagging process, part of the drilling cuttings or dust enters the extraction pipeline during construction under the influence of induced extraction negative pressure, water or deslagging is not complete in the drilled hole (dowhole) that has been constructed, and enters the extraction pipeline under the condition of high negative pressure induced extraction, etc. Factors cause the accumulation of slag in the extraction system to affect the mixed amount of gas extraction, water accumulation causes the negative pressure of gas extraction to be reduced, which becomes the main reason for poor extraction effect. SUMMARY

[0005] The technical problem to be solved by the utility model is to provide water and residue storage equipment of extraction pipeline to solve the technical problems in the prior art.

[0006] The utility model discloses adopt technical scheme for: the water and residue storage equipment of extraction pipeline, including the box, the box top and left side are provided with main pipe interface flange and high pressure water interface respectively, and the main pipe interface flange is connected to the valve, and the valve is installed in the low-lying point of gas extraction pipeline or is linked with the extraction flow divider, and the high pressure water interface is linked with high pressure water pipe, and the box right side is provided with residue discharge port and water outlet, and the water outlet height is higher than residue discharge port, and the water outlet is connected with automatic water release device, and the box top is also provided with pressure switching port, and the pressure switching port is connected to switching tee valve, and one port of switching tee valve is connected to negative pressure extraction system.

[0007] Further, the residue discharge port is connected to the automatic water release device through the tee valve.

[0008] Further, the box front side is provided with the blocking flange, and the blocking flange is detachably sealed with the blocking disc.

[0009] Further, the box top is also provided with the negative pressure observation hole, and the negative pressure observation hole is provided with the negative pressure gauge.

[0010] Further, the box front side is provided with the transparent observation window.

[0011] Further, the transparent observation window comprises the vertical strip-shaped hole arranged on the box front side and the transparent blocking plate blocked on the vertical strip-shaped hole.

[0012] Further, the box is also provided with the cross pressure wind pipe, and the pressure wind pipe is provided with the pressure wind pipe interface at two outer ends, and the pressure wind pipe interface is used for detachably connecting the pressure wind blowing pipe of the pressure wind system.

[0013] The utility model discloses an advantageous effect: compared with prior art, the utility model discloses a water and residue storage device of extraction pipeline, reduces the water and residue accumulation in pipeline, and through connecting the water release equipment, the water and residue accumulation is discharged from the extraction pipeline through the residue removal port, thereby overcoming the problem that the water and residue accumulation in extraction pipeline influences gas extraction negative pressure, extraction volume and the like, realizing the normal operation of underground gas extraction, reducing the follow-up extraction system maintenance work quantity and difficulty, and guaranteeing that mine gas control is in place. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the three-dimensional structure schematic diagram of the multifunctional device of water and residue storage of extraction pipeline;

[0015] Fig. 2 It is the three-dimensional structure schematic diagram of the multifunctional device of water and residue storage of extraction pipeline (remove blocking disc and blocking plate);

[0016] Fig. 3 It is the three-dimensional structure schematic diagram of the multifunctional device of water and residue storage of extraction pipeline from another perspective. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to specific embodiments.

[0018] Example 1: Figs. 1-3 As shown, the water and slag storage equipment for the extraction pipeline includes a box body 1. The top and left sides of the box body 1 are respectively provided with a main interface flange 2 and a high-pressure water interface 3. The main interface flange 2 is connected to a valve. The valve is installed at a low point in the gas extraction pipeline or is connected to the extraction diverter. The high-pressure water interface 3 is connected to the high-pressure water pipe. A slag discharge port 4 and a water discharge port 5 are provided on the right side of the box body 1. The water discharge port 5 is higher than the slag discharge port 4. The water discharge port 5 is connected to an automatic water discharge device. A pressure switching port 6 is also provided on the top of the box body 1. The pressure switching port 6 is connected to a switching three-way valve. The switching three-way valve One port of the valve is connected to the negative pressure extraction system. After being connected to the extraction pipeline system, the internal space of the box is used to provide storage space for water, slag, etc. in the pipeline, and the high-pressure water interface is connected to high-pressure water, and the box is flushed and the slag is discharged through the slag discharge port. When the accumulated slag in the pipeline cannot be discharged, the side sealing disc can be removed for cleaning. The pressure switching port can be connected to the negative pressure extraction system by switching the three-way valve to ensure that a negative pressure environment is formed inside the pipeline, speeding up the speed at which water and slag enter the device. When the water volume increases and manual water discharge is required, switching the three-way valve can achieve rapid pressure relief, water discharge and slag discharge.

[0019] In order to improve drainage efficiency, the slag discharge port 4 is connected to the automatic water discharge device through a three-way valve to increase the drainage channel and improve drainage efficiency.

[0020] In order to avoid excessive accumulation of internal slag that cannot be cleaned, a sealing flange 7 is provided on the front side of the box body 1. The sealing flange 7 is detachably sealed and connected to the sealing disc 8 by screws 13. After removing the sealing disc, timely cleaning is carried out. The diameter of the hole blocked by the sealing disc is larger than half the size of the front side of the box body. The sealing flange 7 protrudes from the front side of the box body to form a boss, and the end face of the boss is provided with an annular sealing ring to improve the sealing effect.

[0021] In order to facilitate the understanding of the negative pressure inside the box, a negative pressure observation hole 10 is also provided on the top of the box 1. The negative pressure observation hole 10 is installed with a negative pressure gauge. The negative pressure gauge can be used to quickly understand the size of the negative pressure in the box. It is installed on the top and does not affect its use. The height of the water accumulation inside the box can be judged according to the change in negative pressure.

[0022] In order to facilitate observation of the amount of accumulated slag inside the box, a transparent observation window 9 is installed on the front side of the box 1. By looking through the transparent observation window, the accumulated slag situation inside the box can be quickly and conveniently understood.

[0023] In order to facilitate the production and observation of internal slag accumulation, the transparent observation window 9 comprises a vertical strip hole 901 arranged on the front side of the box body 1 and a transparent sealing plate 902 blocked on the vertical strip hole 901 by means of a screw 903. The structure facilitates the observation of the internal slag accumulation of the box body, is simple in structure, low in cost, easy to assemble and disassemble, and the vertical strip hole 901 is protruded forward to form an annular boss, and the annular boss is provided with an annular groove for mounting a sealing ring. After the sealing ring is mounted, the sealing effect can be improved.

[0024] The box body 1 is also provided with a transverse compressed air pipe 11, and the two outer ends of the compressed air pipe 11 are provided with compressed air pipe interfaces 12. The compressed air pipe interfaces 12 are used for detachably connecting the compressed air blowing pipe of the compressed air system. When the borehole exists in the extraction system, the hole blowing is needed to be carried out regularly. The compressed air pipe 11 and the box body 1 are integrated, but are mutually sealed and isolated. The compressed air pipe interfaces are connected to the compressed air system and connected to the compressed air blowing pipe. The laying engineering quantity of the pipeline in the roadway is simplified. The downhole compressed air blowing pipeline is integrated, and the extension and maintenance engineering quantity of the downhole blowing pipeline is reduced.

[0025] The switching tee valve is arranged at the pressure switching port. One end of the switching tee valve is connected to the extraction system, a negative pressure environment is formed in the pipeline, the speed of water and slag entering the device is accelerated, when the automatic water discharge device fails, the control valve above the device is manually closed, the negative pressure inlet end is closed by the switching tee, and the negative pressure in the device is rapidly released, and the water discharge speed is accelerated.

[0026] The negative pressure gauge is arranged at the negative pressure observation hole, and the end of the negative pressure gauge is adjusted according to the actual situation, but needs to be higher than the water discharge port position. When the automatic water discharge device normally operates, the water level in the device is lower than the end of the negative pressure gauge, and the negative pressure is normally displayed. When the automatic water discharge device fails or the water quantity in the pipeline increases, the water level in the device gradually rises and is higher than the end of the negative pressure gauge, so that the negative pressure is zero. According to the display of the negative pressure gauge, the automatic water discharge device is maintained or the water discharge channel is increased, so that the maintenance and management level of the extraction pipeline is fully played.

[0027] The construction method of the water and residue storage device of the extraction pipeline is as follows: after the laying of the extraction pipeline is completed, a valve is left at a low point of the extraction pipeline or at the lower end of the extraction flow divider, the valve is connected to the flange disc of the main pipe interface at the top of the box in the closed state, the transparent plugging plate and the plugging disc are installed on the vertical strip-shaped hole and the plugging flange disc, the high-pressure water pipe connected to the high-pressure water supply system is connected to the high-pressure water interface during the residue discharge and cleaning operation, and a switching tee valve is arranged at the residue discharge port to realize closed residue discharge switching, the accumulation of residue can be visually managed and observed through the transparent observation window, when the accumulated residue reaches a set amount, the box is washed and the residue is discharged, the valve at the top of the box is closed, the tee valve arranged at the residue discharge port is opened, the high-pressure water is turned on, and the high-pressure water pipe is connected to the box through the high-pressure water interface to flush and discharge the residue; when the accumulated residue in the pipeline is solidified and cannot be discharged, the plugging disc is disassembled for cleaning; during the water discharge operation, the automatic water discharge device is connected to the water discharge port for automatic water discharge, when the amount of accumulated residue in the pipeline is small and the water inflow is large, the automatic water discharge device is connected to the automatic water discharge device through the switching tee valve arranged at the residue discharge port to increase the water discharge channel, and when the automatic water discharge device cannot discharge water, the switching tee valve of the pressure switching port above the box is closed.

[0028] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application, therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A water and sediment storage device for extraction piping, characterized in that: The utility model relates to a kind of negative pressure water drainage devices for gas extraction, including box (1), box (1) top and left side are provided with main pipe interface flange (2) and high-pressure water interface (3) respectively, main pipe interface flange (2) is connected to valve, valve is installed in gas extraction pipeline low-lying point or is communicated with extraction shunt, high-pressure water interface (3) is communicated high-pressure water pipe, box (1) right side is provided with slag discharge port (4) and water outlet (5), water outlet (5) height is higher than slag discharge port (4), water outlet (5) is accessed automatic water discharge device, box (1) top is further provided with pressure switching port (6), pressure switching port (6) is connected to switching tee valve, and one port of switching tee valve is connected to negative pressure extraction system;Box (1) front side is provided with blocking flange (7), and blocking flange (7) is detachably sealed with blocking disc (8);Box (1) is further provided with cross pressure wind pipe (11), and pressure wind pipe (11) two outer ends are provided with pressure wind pipe line interface (12), and pressure wind pipe line interface (12) is used for the pressure wind blowing pipe of pressure wind system with detachably connected.

2. The extraction line water and sediment trap apparatus of claim 1, wherein: Slag discharge port (4) is accessed automatic water discharge device by tee valve.

3. The extraction line water and sediment trap apparatus of claim 1 or 2, wherein: Box (1) top is further provided with negative pressure observation hole (10), and negative pressure observation hole (10) is installed with negative pressure gauge.

4. The extraction line water and sediment trap of claim 1 or 2, wherein: Box (1) front side is installed with transparent observation window (9).

5. The extraction line water and sediment trap of claim 4, wherein: Transparent observation window (9) includes vertical strip hole (901) being provided in the front side of box (1) and transparent blocking plate (902) being blocked on vertical strip hole (901).

Images