Gas extraction pipeline slag removal and water drainage device

Abstract

The present application relates to the technical field of gas extraction, in particular to a gas extraction pipeline slag removal and water drainage device. The gas extraction pipeline slag removal and water drainage device comprises a first pipeline, a second pipeline, a third pipeline and a water drainage device. The two ends of the first pipeline are in communication with a gas extraction pipeline. One end of the second pipeline is in communication with a slag outlet of the first pipeline, and the other end is in communication with the third pipeline. The third pipeline is located below the first pipeline, and the second pipeline is arranged from top to bottom. The water inlet of the water drainage device is in communication with the third pipeline. The part of the third pipeline between the second pipeline and the water inlet of the water drainage device is provided with a first filter structure for filtering solid impurities. The water inlet of the water drainage device is not easy to be blocked by coal slag or other solid impurities, and the accumulated slag and water in the pipeline can enter the second pipeline, which is conducive to improving the slag removal and water drainage effect and reducing the impurity content in the gas flowing out of the first pipeline.

Description

Technical Field

[0001] This invention relates to the field of gas extraction technology, and more specifically, to a gas extraction pipeline slag removal and water discharge device. Background Technology

[0002] The pre-drainage method for high-gas mines is to extract gas through boreholes in the coal seam, and currently, centralized control of gas extraction pipelines is mostly adopted.

[0003] During the gas extraction process, the gas and impurities in the gas extraction pipeline flow at a relatively high speed. When using the existing slag removal and water discharge device for slag removal and water discharge, the coal slag is difficult to fall into the slag removal channel when passing through the slag removal port. In addition, the water inlet of the water discharger is easily blocked by coal slag or other solid impurities, resulting in poor slag removal and water discharge effect. Summary of the Invention

[0004] The purpose of this invention is to provide a gas extraction pipeline slag removal and water discharge device and its usage method to improve the slag removal and water discharge effect.

[0005] The gas extraction pipeline slag removal and water discharge device provided by the present invention includes a first pipeline, a second pipeline, a third pipeline, and a water discharge device.

[0006] Both ends of the first pipeline are connected to the gas extraction pipeline, one end of the second pipeline is connected to the slag outlet of the first pipeline, and the other end is connected to the third pipeline; the third pipeline is located below the first pipeline, and the second pipeline extends from top to bottom; the inlet of the water discharge device is connected to the third pipeline.

[0007] The third pipeline is provided with a first filter structure at the part between the second pipeline and the water inlet of the water dispenser. The first filter structure is used to filter solid impurities.

[0008] Preferably, as one possible implementation, there are two or more second pipelines, which are arranged at intervals along the extension direction of the first pipeline.

[0009] Preferably, as one possible implementation, the first pipeline is provided with a second filter structure, which is located on the side of the slag outlet closest to the air outlet end of the first pipeline, for filtering solid impurities.

[0010] Preferably, as one possible implementation, both the first filter structure and the second filter structure are filter screens.

[0011] Preferably, as one possible implementation, the third pipeline is equipped with a first valve, and the first valve and the water inlet of the water dispenser are located on opposite sides of the first filter structure.

[0012] Preferably, as one possible implementation, there are two second pipes, and the inlet of the water dispenser is connected to the part of the third pipe located between the two second pipes; there are two first valves, which are respectively installed at both ends of the second pipes.

[0013] Preferably, as one possible implementation, the height of the third pipeline is 0.4~0.6m.

[0014] Preferably, as one possible implementation, the second pipeline is equipped with a second valve.

[0015] Preferably, as one possible implementation, the inner diameter of the first pipeline is the same as the inner diameter of the gas extraction pipe; And / or, the inner diameter of the second pipe is equal to the inner diameter of the first pipe; And / or, the inner diameter of the third pipeline is greater than or equal to the inner diameter of the second pipeline.

[0016] Preferably, as one possible implementation, the negative pressure port of the water drainer is connected to the second pipeline, and the height difference between the negative pressure port and the water inlet of the water drainer is 0.8~1.2m; And / or, the second conduit is a straight pipe.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: During gas extraction, the gas mixed with impurities in the gas extraction pipe flows through the first pipeline. In the first pipeline, solid and liquid impurities mixed with the gas (such as coal slag and water) fall into the second pipeline below under the action of gravity. The solid and liquid impurities entering the second pipeline can enter the third pipeline along the second pipeline under the action of gravity. The solid impurities entering the third pipeline are blocked by the first filter structure on the side near the second pipeline, while the liquid impurities entering the third pipeline flow through the first filter structure to the inlet of the water discharge device and are extracted by the water discharge device to achieve the purpose of water discharge. In other words, under the obstruction of the first filter structure, coal slag or other solid impurities are not easy to enter the inlet of the water discharge device. Therefore, the inlet of the water discharge device is not easily blocked by coal slag or other solid impurities, thus improving the water discharge effect. In addition, since the gas and impurities in the first pipeline flow at a relatively fast rate, the second pipeline is used to connect the third pipeline and the first pipeline, intersecting at an elbow. This method makes it easier for the accumulated slag and water in the first pipeline to enter the second pipeline, which helps to improve the slag removal and water discharge effect, reduce the impurity content in the gas flowing out of the first pipeline, and improve the gas purity. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the gas extraction pipeline slag removal and water discharge device provided in an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1-First pipeline; 2-Second pipeline; 3-Third pipeline; 4-Water drainer; 5-First filter structure; 6-Second filter structure; 7-First valve; 8-Second valve; 9-First ball valve; 10-Second ball valve; 11-Blind flange. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0023] See Figure 1 This embodiment provides a gas extraction pipeline slag removal and water discharge device, which includes a first pipeline 1, a second pipeline 2, a third pipeline 3, and a water discharger 4; both ends of the first pipeline 1 are connected to the gas extraction pipeline, one end of the second pipeline 2 is connected to the slag outlet of the first pipeline 1, and the other end is connected to the third pipeline 3; the third pipeline 3 is located below the first pipeline 1, and the second pipeline 2 extends from top to bottom; the water inlet of the water discharger 4 is connected to the third pipeline 3; a first filter structure 5 is provided in the part of the third pipeline 3 between the second pipeline 2 and the water inlet of the water discharger 4, and the first filter structure 5 is used to filter solid impurities.

[0024] During the gas extraction process, the gas mixed with impurities in the gas extraction pipe flows through the first pipe 1. In the first pipe 1, solid and liquid impurities mixed with the gas (such as coal slag, water, etc.) fall into the second pipe 2 below under the action of gravity from the slag outlet. The solid and liquid impurities entering the second pipe 2 can enter the third pipe 3 under the action of gravity. The solid impurities entering the third pipe 3 are blocked by the first filter structure 5 on the side close to the second pipe 2, while the liquid impurities entering the third pipe 3 flow through the first filter structure 5 to the inlet of the water drainer 4 and are extracted by the water drainer 4 to achieve the purpose of water drainage. In other words, under the obstruction of the first filter structure 5, coal slag or other solid impurities are not easy to enter the inlet of the water drainer 4. Therefore, the inlet of the water drainer 4 is not easy to be blocked by coal slag or other solid impurities, thus improving the water drainage effect. In addition, since the gas and impurities in the first pipeline 1 flow at a relatively fast rate, the second pipeline 2 is used to connect the third pipeline 3 to the first pipeline 1, and the connection is made at an elbow. This makes it easier for the slag and water in the first pipeline 1 to enter the second pipeline 2, which is conducive to improving the slag removal and water discharge effect, reducing the impurity content in the gas flowing out of the first pipeline 1, and improving the gas purity.

[0025] Preferably, the number of second pipes 2 is set to two or more, and all the second pipes 2 are arranged at intervals along the extension direction of the first pipe 1. The solid and liquid impurities mixed in the gas in the first pipe 1 will fall into each of the lower second pipes 2 in sequence under the action of gravity along the airflow direction, which is equivalent to increasing the chance of solid and liquid impurities falling, and can further reduce the impurity content in the gas flowing out of the first pipe 1.

[0026] A second filter structure 6 can be installed in the first pipeline 1. The second filter structure 6 is positioned on the side of the slag discharge port closest to the gas outlet of the first pipeline 1, so as to filter solid impurities. It should be noted that because the flow rate of gas and impurities in the first pipeline 1 is relatively fast, solid impurities may still exist in the gas after the impurities in the gas fall and are discharged through each slag discharge port. The installation of the second filter structure 6 allows the solid impurities remaining in the gas to be blocked by the second filter structure 6 when the gas passes through the last slag discharge port and fall into the second pipeline 2 through that slag discharge port, which can further improve the slag removal effect.

[0027] Specifically, a filter screen can be selected as the first filter structure 5 and the second filter structure 6 mentioned above.

[0028] A first valve 7 can be installed on the third pipe 3. The first valve 7 and the inlet of the water dispenser 4 are respectively set on both sides of the first filter structure 5. After solid impurities enter the third pipe 3, they will be blocked by the first filter structure 5. Therefore, solid impurities will accumulate on the side of the third pipe 3 opposite to the inlet of the first filter structure 5. The first valve 7 is set on this side. When it is necessary to clean solid impurities, the first valve 7 can be opened so that the solid impurities accumulated in the third pipe 3 can be discharged through the first valve 7.

[0029] The second pipe 2 can be configured as two pipes, connecting the inlet of the water dispenser 4 to the part of the third pipe 3 located between the two second pipes 2. Correspondingly, there are two first filter structures 5, respectively located on both sides of the inlet of the water dispenser 4. Solid impurities entering the third pipe 3 through the second pipe 2 will be distributed on both sides of the third pipe 3 located on both sides of the two first filter structures 5. Based on this, there are two first valves 7, which are respectively installed at both ends of the second pipe 2. Opening the first valves 7 will remove solid impurities located on both sides of the two first filter structures 5 in the third pipe 3. Moreover, installing the first valves 7 at both ends of the third pipe 3 makes it easier to assemble the first valves 7 with the third pipe 3, which helps to reduce the assembly difficulty.

[0030] Preferably, the height of the third pipeline 3 is set to 0.4~0.6m. This allows workers to operate the first valve 7 on the third pipeline 3 without having to climb to a height when cleaning solid impurities, making the cleaning work both safe and efficient. Specifically, the height of the third pipeline 3 can be set to approximately 0.5m.

[0031] A second valve 8 can be installed on the second pipeline 2. When it is necessary to remove solid impurities, the second valve 8 can be closed to cut off the connection between the first pipeline 1 and the third pipeline 3. Then, the first valve 7 can be opened to remove the solid impurities, ensuring the safety of the impurity removal process. After cleaning is completed, the first valve 7 can be closed and the second valve 8 can be opened to continue the slag removal and water discharge work. The height of the second valve 8 can be set according to needs, achieving the purpose of operation without climbing, further ensuring the safety and efficiency of the cleaning work.

[0032] Both the first valve 7 and the second valve 8 mentioned above can be butterfly valves.

[0033] Preferably, the inner diameter of the first pipeline 1 is set to be the same as the inner diameter of the gas extraction pipe, which can make the gas flow smoother.

[0034] Preferably, the inner diameter of the second pipe 2 is set to be equal to the inner diameter of the first pipe 1, so that solid impurities mixed in the gas can fall smoothly into the second pipe 2.

[0035] Preferably, the inner diameter of the third pipe 3 is set to be greater than or equal to the inner diameter of the second pipe 2, so that solid impurities falling into the second pipe 2 can smoothly enter the third pipe 3, which facilitates the subsequent cleaning of solid impurities.

[0036] The negative pressure port of the water dispenser 4 can be connected to the second pipe 2, and the height difference between the negative pressure port and the inlet of the water dispenser 4 can be set to 0.8~1.2m. This ensures that the negative pressure port is above the water level during the water discharge process, guaranteeing that the water dispenser 4 can work normally. Specifically, the height difference between the negative pressure port and the inlet of the water dispenser 4 can be set to about 1m.

[0037] When the workers are removing slag, they only need to check whether there is water accumulation in the lower bridge-type extraction pipeline to determine whether the water discharger 4 is faulty. If there is water accumulation, it means that the water discharger 4 is faulty and needs to be repaired.

[0038] Preferably, the second pipe 2 is a straight pipe, which allows solid and liquid impurities to fall more smoothly into the third pipe 3, reducing the risk of solid impurities getting stuck in the second pipe 2.

[0039] In actual installation, the first pipe 1 and the third pipe 3 are both set horizontally, while the second pipe 2 is set vertically.

[0040] Specifically, a first through hole can be provided on the second pipeline 2, and a first ball valve 9 can be installed in the first through hole to connect to the negative pressure port of the water dispenser 4.

[0041] A second through hole can be set on the third pipe 3, and a second ball valve 10 can be installed in the second through hole to connect to the inlet of the water dispenser 4.

[0042] The diameter of the first and second through holes can be 50 mm.

[0043] Blind flanges 11 can be installed at both ends of the first pipeline 1. When in use, the blind flanges 11 can be replaced with flanges to achieve connection with the gas collection pipe.

[0044] In the description of this invention, it should be noted that the terms "upper", "lower", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A gas extraction pipeline slag removal and water discharge device, characterized in that, It includes the first pipeline, the second pipeline, the third pipeline, and the water outlet; Both ends of the first pipeline are connected to the gas extraction pipeline, one end of the second pipeline is connected to the slag outlet of the first pipeline, and the other end is connected to the third pipeline. The third pipeline is located below the first pipeline, and the second pipeline extends from top to bottom; the inlet of the water dispenser is connected to the third pipeline; The third pipeline is provided with a first filter structure at the part between the second pipeline and the water inlet of the water dispenser. The first filter structure is used to filter solid impurities. The first pipeline is equipped with a second filter structure, which is located on the side of the slag outlet closest to the air outlet of the first pipeline, for filtering solid impurities. There are two second pipelines, and the inlet of the water discharge device is connected to the third pipeline at the point between the two second pipelines. The third pipeline is equipped with a first valve, which is located on both sides of the first filter structure, along with the inlet of the water discharge device. There are two first valves, which are installed at both ends of the second pipeline. The inner diameter of the first pipeline is the same as the inner diameter of the gas extraction pipe, the inner diameter of the second pipeline is equal to the inner diameter of the first pipeline, and the inner diameter of the third pipeline is greater than or equal to the inner diameter of the second pipeline.

2. The gas extraction pipeline slag removal and water discharge device according to claim 1, characterized in that, The second pipeline consists of two or more pipes, which are arranged at intervals along the extension direction of the first pipeline.

3. The gas extraction pipeline slag removal and water discharge device according to claim 2, characterized in that, Both the first and second filter structures are filter screens.

4. The gas extraction pipeline slag removal and water discharge device according to claim 1, characterized in that, The height of the third pipeline is 0.4~0.6m.

5. The gas extraction pipeline slag removal and water discharge device according to claim 1, characterized in that, The second pipeline is equipped with a second valve.

6. The gas extraction pipeline slag removal and water discharge device according to any one of claims 1-5, characterized in that, The negative pressure port of the water drainer is connected to the second pipeline, and the height difference between the negative pressure port and the inlet of the water drainer is 0.8~1.2m; And / or, the second conduit is a straight pipe.

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