CN204299610U - A kind of methane gas extraction pipeline automatic bleeder - Google Patents

Abstract

The utility model discloses a kind of methane gas extraction pipeline automatic bleeder, comprise solid-liquid-gas separating device and jettison gear, described solid-liquid-gas separating device comprises pipe joint, valve, solid-liquid-gas separation bin and gross porosity filter screen, described jettison gear comprises the storehouse that discharges water, spherical float, counterweight, connecting rod, piston, separating opening, inclined-plane and dewatering outlet, described pipe joint is connected with extraction pipeline by valve, described solid-liquid-gas separation bin top is provided with gross porosity filter screen, spherical float is provided with in described solid-liquid-gas separation bin, described spherical float connects counterweight and tapered piston by connecting rod.The utility model relies on the gravity of buoyancy of water and counterweight, have developed a kind of methane gas extraction pipeline automatic bleeder.The utility model is applicable to the automatic draining of sizes negative-pressure pipeline, and structure is comparatively simple, directly can discharge ickings, reduces human intervention, time saving and energy saving, for the discharge of percolating water in gas pumping pipeline and ponding of drilling provides a great convenience.

Description

An automatic water release device for gas drainage pipeline

technical field

The utility model relates to the field of gas extraction, in particular to an automatic water discharge device for a gas extraction pipeline.

Background technique

In my country's primary energy consumption, coal accounts for the largest proportion, and at the same time, my country is also the largest coal-producing country in the world. In my country, the coal seam gas content is high, which poses a major threat to the safety of coal mine production, and gas is a high-quality clean energy, so gas drainage is carried out before coal mining. In the process of gas extraction in mines, seepage water in coal seams and rock formations and drilled water are often pumped into gas extraction pipelines, which increases the extraction resistance in the drainage pipelines and affects the gas extraction effect. In the prior art, the seepage water and drilling water entering the drainage pipeline are often manually discharged, which is not only time-consuming and labor-intensive, but also difficult to timely remove the seepage water and drilling water that has entered the drainage pipeline. It is reported in the literature that the automatic water release device currently used is greatly affected by the negative pressure of drainage, which affects the normal and orderly progress of the mine gas drainage project and gas utilization. At the same time, the coal dust pumped into the automatic water release device is not easy to discharge.

Utility model content

In order to solve the above problems, the utility model provides an automatic water discharge device for gas extraction pipelines.

In order to achieve the above object, the technical scheme that the utility model takes is:

An automatic water release device for a gas extraction pipeline, comprising a solid-liquid-gas separation device and a water discharge device, the solid-liquid-gas separation device includes a pipe joint, a valve, a solid-liquid-gas separation chamber and a coarse filter screen, and the water discharge device includes Water release chamber, spherical float, counterweight, connecting rod, piston, separation port, slope and water discharge port, the pipe joint is connected to the extraction pipeline through a valve, and the top of the solid-liquid-gas separation chamber is provided with a coarse-hole filter screen, The solid-liquid-gas separation chamber is provided with a spherical float, and the spherical float is connected with a counterweight and a conical piston through a connecting rod. The bottom of the solid-liquid-gas separation chamber is provided with a conical surface, and the bottom of the conical surface is provided with a separation port. , the conical piston cooperates with the conical surface, the lower part of the conical surface is provided with a water discharge chamber, the bottom of the water discharge chamber is provided with a slope, and the side of the water discharge chamber is provided with a water outlet.

The utility model has the following beneficial effects:

Relying on the buoyancy of water and the gravity of counterweight, an automatic water discharge device for gas drainage pipelines was developed. The utility model is suitable for automatic discharge of water in negative pressure pipelines of various sizes. The structure is relatively simple, and coal chips can be discharged directly, which reduces human intervention, saves time and effort, and provides a good solution for the discharge of seepage water and drilling water in gas drainage pipelines. Great convenience.

Description of drawings

Fig. 1 is a schematic structural diagram of an automatic water discharge device for a gas drainage pipeline according to an embodiment of the present invention.

Detailed ways

In order to make the purpose and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Referring to Fig. 1, this specific embodiment adopts the following technical solutions: an automatic water discharge device for a gas extraction pipeline, including a solid-liquid-gas separation device and a water discharge device, and the solid-liquid-gas separation device includes a pipe joint 3, a valve 2, a solid The liquid-gas separation bin 6 and the coarse-hole filter screen 4, the water discharge device includes a water discharge bin 12, a spherical float 7, a counterweight 9, a connecting rod 8, a piston 11, a separation port 13, an inclined plane 14 and a water discharge port 15, and the pipeline The joint 3 is connected with the extraction pipeline 1 through the valve 2, the top of the solid-liquid-gas separation chamber 6 is provided with a coarse-hole filter 4, the solid-liquid-gas separation chamber 6 is provided with a spherical float 7, and the spherical float 7 The counterweight 9 and the conical piston 11 are connected by the connecting rod 8. The bottom of the solid-liquid-gas separation chamber 6 is provided with a conical surface 10, and the bottom of the conical surface 10 is provided with a separation port 13. The conical piston 11 and the conical surface 10, the lower part of the conical surface 10 is provided with a water release bin 12, the bottom of the water release bin 12 is provided with an inclined surface 14, and the side of the water release bin 12 is provided with a water outlet 15.

In this specific implementation, before connecting with the extraction pipeline 1, the valve 2 is in a closed state, and the pipeline joint 3 is connected with the extraction pipeline 1. Due to the gravity of the counterweight 9, the piston 11 seals the conical surface 10 of the solid-liquid-gas separation device, Water outlet 15 is in open state all the time. After the extraction pipeline 1 is connected, the valve 2 is opened, the solid-liquid-gas separation chamber 6 is in a negative pressure state, and the separation port 13 is sealed by the counterweight 9 and the piston 11 . When there is water in the extraction pipeline, it will enter the automatic water discharge device through the pipe joint 3, wherein the larger pieces of coal cinders are intercepted by the coarse mesh filter 4 to ensure the normal operation of the water discharge device below. When the solid-liquid-gas separation chamber 6 A certain amount of water is accumulated, and the piston 11 is lifted under the buoyancy of the spherical float 7, and the accumulated water and broken coal chips enter the water discharge bin 12. Due to the existence of the slope 14, the coal chips will be directly discharged through the water outlet 15 along with the accumulated water.

This specific implementation relies on the buoyancy of water and the gravity of the counterweight, and develops an automatic water discharge device for gas drainage pipelines. The utility model is suitable for automatic discharge of water in negative pressure pipelines of various sizes. The structure is relatively simple, and coal chips can be discharged directly, which reduces human intervention, saves time and effort, and provides a good solution for the discharge of seepage water and drilling water in gas drainage pipelines. Great convenience.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. These improvements and modifications It should also be regarded as the protection scope of the present utility model.

Claims (1)

1. A gas extraction pipeline automatic water discharge device is characterized in that it comprises a solid-liquid-gas separation device and a water discharge device, and the solid-liquid-gas separation device comprises a pipeline joint (3), a valve (2), a solid-liquid-gas separation device Storehouse (6) and coarse hole filter screen (4), described water release device comprises water release storehouse (12), spherical float (7), counterweight (9), connecting rod (8), piston (11), separation port ( 13), an inclined surface (14) and a water outlet (15), the pipe joint (3) is connected to the extraction pipeline (1) through a valve (2), and the top of the solid-liquid-gas separation chamber (6) is provided with a coarse hole filter screen (4), the solid-liquid-gas separation chamber (6) is provided with a spherical float (7), and the spherical float (7) is connected with a counterweight (9) and a conical piston ( 11), the bottom of the solid-liquid-gas separation chamber (6) is provided with a conical surface (10), the bottom of the conical surface (10) is provided with a separation port (13), and the conical piston (11) and the conical surface ( 10) Cooperate, the lower part of the conical surface (10) is provided with a water release bin (12), the bottom of the water release bin (12) is provided with a slope (14), and the side of the water release bin (12) is provided with a water outlet (15) .