A gas extraction gas-water separator

Abstract

This utility model relates to the technical field of coal mine safety engineering, and in particular to a gas-liquid separator for gas extraction, including an extraction inlet. A gas-liquid separation mechanism is installed at the top of the extraction inlet, comprising a preliminary separation component and a gas drying component. This gas-liquid separator for gas extraction utilizes centrifugal force to achieve preliminary gas-liquid separation through the preliminary separation component. Simultaneously, the conical mounting gasket fits snugly against the inner wall of the dispersion bottle, enhancing the component's sealing performance. The gas drying component enhances the condensation effect with a spiral condensation pipe, and combined with a "Y"-shaped gas-liquid separation pipe, achieves complete gas-liquid separation, ensuring the dryness of the output gas. The gas-liquid separation mechanism integrates the preliminary separation and drying components, forming a dual processing mechanism of "centrifugal separation + condensation drying," significantly improving gas-liquid separation efficiency and safety, and is suitable for the high-efficiency processing needs of coal mine gas extraction.

Description

Technical Field

[0001] This utility model relates to the field of coal mine safety engineering technology, and in particular to a gas-water separator for gas extraction. Background Technology

[0002] In the field of coal mine safety engineering technology, gas extraction is a key link in ensuring safe production in coal mines. During the gas extraction process, the extracted gas usually exists in the form of a gas-water mixture. If it is not separated efficiently, it will not only affect the subsequent utilization of the gas, but may also cause pipeline blockage, equipment corrosion, and even safety hazards such as gas concentration fluctuations due to residual moisture. Therefore, a gas extraction gas-water separator is particularly needed.

[0003] A search revealed Chinese patent CN222045702U, which was publicly authorized on November 22, 2024. This patent solves the problem of gas and liquid generated during drilling not being collected separately and being discharged randomly by setting up a gas-liquid separator. However, an existing gas extraction gas-liquid separator may cause solid impurities in the liquid to clog the discharge pipe during operation, affecting drainage efficiency. It may also cause gas leakage due to airtightness issues, creating a safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide a gas-water separator for gas extraction, in order to solve the problems of the existing gas-water separator mentioned in the background art. However, the existing gas-water separator may have problems such as low gas-water separation efficiency, inability to adapt to fluctuations in the flow rate and water content of the gas-liquid mixture, insufficient sealing of the separation components leading to gas leakage, and poor condensation and drying effect causing the output gas humidity to exceed the standard.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gas extraction gas-water separator, including an extraction inlet, wherein a gas-water separation mechanism is provided at the top of the extraction inlet, and the gas-water separation mechanism includes a preliminary separation component and a gas drying component;

[0006] The preliminary separation assembly includes a mounting gasket fixedly connected to the outer surface of the inlet. A dispersion bottle is fixedly connected to one side surface of the mounting gasket, and a collection bottle is fixedly connected to the top of the mounting gasket. A venting turntable is slidably connected to the inner wall surface of the dispersion bottle. A drive shaft is rotatably connected to one side surface of the venting turntable. A drive base adapted to the inner wall of the dispersion bottle is rotatably connected to the top of the drive shaft. A collection scraper is fixedly connected to the outer surface of the drive shaft. A preliminary pipe is fixedly connected to one side surface of the collection bottle. A preliminary collection ring is fixedly connected to the side surface of the preliminary pipe away from the dispersion bottle. A drive motor is provided on the inner wall surface of the drive base.

[0007] Preferably, the gas drying assembly includes a relay pipe, which is fixedly connected to the top of the dispersion bottle. A condenser pipe is fixedly connected to one side surface of the relay pipe, a cooling tank is fixedly connected to one side surface of the condenser pipe, and a gas-liquid separator is fixedly connected to one side surface of the condenser pipe. A gas outlet and a liquid separator are provided on one side surface of the gas-liquid separator.

[0008] Preferably, the shape and size of the mounting gasket in the vertical direction match the inner wall of the dispersion bottle, and the mounting gasket in the vertical direction is a cone shape that is larger at the top and smaller at the bottom.

[0009] Preferably, the outer surface of the venting turntable is provided with a limiting slip ring, the inner wall surface of the dispersion bottle is provided with a sliding circular rail, and the venting turntable is slidably connected to the inner wall of the dispersion bottle through the limiting slip ring and the sliding circular rail.

[0010] Preferably, eight sets of collecting scrapers are symmetrically arranged around the central axis of the drive shaft, one side surface of the collecting scraper and the drive base is porous, and the cross section of the collecting scraper along the vertical direction is blade-shaped.

[0011] Preferably, the condensation pipe is arranged in a spiral shape along the inner wall of the cooling tank, and the condensation pipe is fixedly connected to the top of the dispersion bottle through a relay pipe.

[0012] Preferably, the gas-liquid separation tube has a "Y" shaped cross-section along the vertical direction, and the gas outlet is fixedly connected to the top of the liquid separator.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this gas extraction gas-water separator,

[0014] 1. By setting up the preliminary separation component, the gas-liquid mixture is initially separated by centrifugal force, which solves the problem of low separation efficiency caused by uneven flow rate of gas-liquid mixture in gas extraction. At the same time, the installation gasket of the cone structure fits the inner wall of the dispersion bottle, which enhances the sealing of the component and avoids gas leakage.

[0015] 2. By setting up the gas drying components, the condensation effect is enhanced by the cooperation of the spiral condensation pipe and the cooling tank, and the gas-liquid separation is achieved by combining the "Y"-shaped gas-liquid separation pipe. This solves the problem of excessive gas humidity caused by insufficient cooling area in traditional drying devices, and ensures the dryness of the output gas.

[0016] By integrating the gas-liquid separation mechanism with the drying components, a dual processing mechanism of "centrifugal separation + condensation drying" is formed. Compared with single separation technology, this significantly improves the gas-liquid separation efficiency and safety, solves the problems of incomplete separation and complex structure of existing devices, and is suitable for the high-efficiency processing needs of coal mine gas extraction. Attached Figure Description

[0017] Figure 1 This is a side view of the appearance structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the dispersion bottle of this utility model;

[0019] Figure 3 This is a cross-sectional view of the drive base structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the inlet and the collection bottle of this utility model.

[0021] Figure 5 This is a cross-sectional view of the cooling tank of this utility model.

[0022] In the diagram: 1. Inlet; 2. Gas-liquid separation mechanism; 21. Preliminary separation component; 2101. Mounting gasket; 2102. Dispersion bottle; 2103. Collection bottle; 2104. Ventilation turntable; 2105. Drive shaft; 2106. Drive base; 2107. Collection scraper; 2108. Preliminary pipeline; 2109. Preliminary liquid collection ring; 2110. Drive motor; 22. Gas drying component; 2201. Relay pipeline; 2202. Condensation pipeline; 2203. Cooling tank; 2204. Gas-liquid separation pipe; 2205. Gas outlet; 2206. Liquid separator. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a gas extraction gas-water separator, including an extraction inlet 1, and a gas-water separation mechanism 2 is provided at the top of the extraction inlet 1. The gas-water separation mechanism 2 includes a preliminary separation component 21 and a gas drying component 22.

[0025] The preliminary separation component 21 includes a mounting gasket 2101, which is fixedly connected to the outer surface of the inlet 1. A dispersion bottle 2102 is fixedly connected to one side surface of the mounting gasket 2101, and a collection bottle 2103 is fixedly connected to the top of the mounting gasket 2101. A ventilating turntable 2104 is slidably connected to the inner wall surface of the dispersion bottle 2102. A drive shaft 2105 is rotatably connected to one side surface of the ventilating turntable 2104. A drive base 2106 adapted to the inner wall of the dispersion bottle 2102 is rotatably connected to the top of the drive shaft 2105. A collection scraper 2107 is fixedly connected to the outer surface of the drive shaft 2105. A preliminary pipe 2108 is fixedly connected to one side surface of the collection bottle 2103. A preliminary collection ring 2109 is fixedly connected to the side surface of the preliminary pipe 2108 away from the dispersion bottle 2102. A drive base 2106 is provided with a drive... The drive motor 2110, through the setting of the preliminary separation component 21, drives the drive shaft 2105 to rotate after starting. The drive shaft 2105 drives the collecting scraper 2107 and the venting disc 2104 to rotate inside the dispersion bottle 2102. The gas-liquid mixture enters the dispersion bottle 2102 through the mounting gasket 2101. The collecting scraper 2107 throws water against the bottle wall and scrapes it down to the collection bottle 2103 through centrifugal force. The gas flows to the top of the dispersion bottle 2102 through the porous structure of the venting disc 2104 and the drive base 2106. The conical structure of the mounting gasket 2101 can diffuse the gas-liquid mixture. The drive motor 2110 drives the collecting scraper 2107 to rotate and generate centrifugal force, so that the water is quickly separated and collected into the collection bottle 2103. The porous venting disc 2104 and the drive base 2106 can ensure that the gas passes through smoothly, realizing the preliminary separation of gas and water.

[0026] Furthermore, the gas drying assembly 22 includes a relay pipe 2201, which is fixedly connected to the top of the dispersion bottle 2102. A condensation pipe 2202 is fixedly connected to one side surface of the relay pipe 2201. A cooling tank 2203 is fixedly connected to one side surface of the condensation pipe 2202. A gas-liquid separator 2204 is fixedly connected to one side surface of the condensation pipe 2202. An outlet 2205 and a liquid separator 2206 are provided on one side surface of the gas-liquid separator 2204. Through the configuration of the gas drying assembly 22, preliminary separation is achieved during use. The gas enters the condenser pipe 2202 through the relay pipe 2201. The spirally arranged condenser pipe 2202 is cooled by the coolant in the cooling tank 2203, and the water vapor in the gas condenses into liquid. After the gas-liquid mixture enters the gas-liquid separator pipe 2204, the liquid water is discharged from the liquid separator 2206, and the gas flows out from the gas outlet 2205. The spiral condenser pipe 2202 and the cooling tank 2203 work together to enhance the condensation effect. The Y-shaped structure of the gas-liquid separator pipe 2204 uses gravity to achieve complete gas-liquid separation, avoids liquid water residue, and ensures the dryness of the output gas.

[0027] Furthermore, the vertical cross-sectional shape and size of the mounting gasket 2101 match the inner wall of the dispersion bottle 2102. The vertical cross-section of the mounting gasket 2101 is a cone shape, larger at the top and smaller at the bottom. With the mounting gasket 2101 in place, the cone structure can guide the gas-liquid mixture to diffuse evenly along the inner wall of the dispersion bottle 2102 during use, avoiding the decrease in separation efficiency caused by local impact. At the same time, the tight fit between the cone surface and the bottle wall forms a mechanical seal, effectively preventing gas leakage from the installation gap under extraction pressure, thus ensuring the safety of downhole operations.

[0028] Furthermore, a limiting slip ring is provided on the outer surface of the venting turntable 2104, and a sliding circular rail is provided on the inner wall surface of the dispersion bottle 2102. The venting turntable 2104 is slidably connected to the inner wall of the dispersion bottle 2102 through the limiting slip ring and the sliding circular rail. Through the arrangement of the venting turntable 2104 and the dispersion bottle 2102, the limiting slip ring is embedded in the sliding circular rail to form a radial constraint during use, ensuring that the venting turntable 2104 maintains coaxiality when rotating at high speed, avoiding short-circuit outflow of the gas-liquid mixture due to eccentric shaking. At the same time, the clearance fit between the slip ring and the circular rail allows the turntable to float slightly axially, compensating for manufacturing errors while reducing mechanical friction loss.

[0029] Furthermore, eight sets of collecting scrapers 2107 are symmetrically arranged around the central axis of the drive shaft 2105. One side surface of the collecting scraper 2107 and the drive base 2106 is porous, and the vertical cross-section of the collecting scraper 2107 is blade-shaped. Through the arrangement of the collecting scraper 2107 and the drive base 2106, the symmetrically distributed scrapers can balance the centrifugal force during rotation and reduce the radial load on the drive shaft 2105 during use. The blade-shaped edge can efficiently scrape off the water film on the inner wall of the dispersion bottle 2102 and prevent secondary atomization of droplets. The porous structure uses the fluid pressure difference to guide the directional flow of gas, while intercepting droplets to prevent them from being carried out with the gas.

[0030] Furthermore, the condensing pipe 2202 is arranged in a spiral shape along the inner wall of the cooling tank 2203. The condensing pipe 2202 is fixedly connected to the top of the dispersion bottle 2102 through the relay pipe 2201. With the spiral arrangement of the condensing pipe 2202, the spiral pipe design transforms the straight flow into a spiral path during use, which prolongs the residence time of the gas in the cooling tank 2203. Combined with the forced convection of the coolant, the gas temperature is reduced to below the dew point. At the same time, the spiral structure increases the contact area between the outer wall of the pipe and the coolant, which significantly improves the heat exchange efficiency.

[0031] Furthermore, the gas-liquid separation pipe 2204 has a "Y" shaped cross-section along the vertical direction, and the gas outlet 2205 is fixedly connected to the top of the liquid separator 2206. Through the setting of the gas-liquid separation pipe 2204, during use, the "Y" shaped bifurcated structure uses fluid inertia to cause the gas and liquid phases to separate. The gas, due to its lower density, is discharged from the gas outlet 2205 along the upper branch pipe, while the liquid water flows out from the liquid separator 2206 along the lower branch pipe due to gravity. The top gas outlet 2205 is designed to form a dual separation mechanism of "gravity + buoyancy", which significantly improves the separation efficiency.

[0032] Working principle: When the equipment starts running, an external power supply powers the entire system. Gas is drawn into inlet 1, where it exists as a gas-liquid mixture. In the preliminary separation component 21 of the gas-liquid separation mechanism 2, the drive motor 2110 starts. The drive motor 2110 is mounted on the inner wall of the drive base 2106, and the drive shaft 2105 rotates along the central axis at the bottom of the drive base 2106, thereby driving the collecting scraper 2107 to rotate. Since the gas in its natural state may be unevenly distributed, the collecting scraper 2107... Within the relatively enclosed space formed by the collection bottle 2103 and the ventilated rotating disc 2104, a uniform gas-liquid mixture is promoted as much as possible. Meanwhile, in this gas-liquid mixed state, water particles, collected by the blade-shaped collecting scraper 2107, aggregate from small molecules to larger ones due to the surface tension of water molecules. Finally, the water droplets form beads and fall in segments along one side of the collecting scraper 2107 under the influence of gravity until they fall onto the inner wall of the collection bottle 2103. Once the water level on the inner wall of the collection bottle 2103 is higher than the initial pipe 2108, the initial... The separated water flows into the preliminary collection ring 2109 through the preliminary pipe 2108, achieving preliminary collection of the separated water. Since one side surface of the venting disc 2104 and the drive base 2106 is porous, gaseous combustible gas flows out through the porous structure along the top of the dispersion bottle 2102. At this point, most of the water gathers in the preliminary collection ring 2109. Meanwhile, in the gas drying component 22 of the gas-water separation mechanism 2, the preliminarily separated gas flows into the condensation pipe 2202 through the relay pipe 2201. The condensation pipe 2202 is arranged in a spiral pattern along the inner wall of the cooling tank 2203. The cooling tank 2203 is filled with coolant. On the one hand, it prevents the gas temperature from exceeding the ignition point and causing deflagration during transmission. On the other hand, it further cools the gas-liquid mixture, causing gaseous water molecules to condense into liquid water. The gas and liquid are dispersed in the pipe through the condensation pipe 2202. After being processed by the Y-shaped gas-liquid separation pipe 2204, the liquid water is discharged from the liquid outlet 2206, while the combustible gas, due to its lower density, is output from the gas outlet 2205 for further processing. This completes the use of a gas extraction gas-liquid separator.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas-water separator for gas extraction, comprising an extraction inlet (1), characterized in that: The top of the extraction inlet (1) is provided with a gas-water separation mechanism (2), which includes a preliminary separation component (21) and a gas drying component (22). The preliminary separation component (21) includes a mounting gasket (2101), which is fixedly connected to the outer surface of the inlet (1). A dispersion bottle (2102) is fixedly connected to one side surface of the mounting gasket (2101), and a collection bottle (2103) is fixedly connected to the top of the mounting gasket (2101). A permeable turntable (2104) is slidably connected to the inner wall surface of the dispersion bottle (2102), and a drive shaft (2105) is rotatably connected to one side surface of the permeable turntable (2104). The top end of the drive shaft (2105) is rotatably connected to a drive base (2106) adapted to the inner wall of the dispersion bottle (2102). A collection scraper (2107) is fixedly connected to the outer surface of the drive shaft (2105). A preliminary pipe (2108) is fixedly connected to one side surface of the collection bottle (2103). A preliminary liquid collection ring (2109) is fixedly connected to the side surface of the preliminary pipe (2108) away from the dispersion bottle (2102). A drive motor (2110) is provided on the inner wall surface of the drive base (2106).

2. The gas-water separator for gas extraction according to claim 1, characterized in that: The gas drying assembly (22) includes a relay pipe (2201), which is fixedly connected to the top of the dispersion bottle (2102). A condenser pipe (2202) is fixedly connected to one side surface of the relay pipe (2201). A cooling tank (2203) is fixedly connected to one side surface of the condenser pipe (2202). A gas-liquid separator (2204) is fixedly connected to one side surface of the gas-liquid separator (2204). An outlet (2205) and a liquid separator (2206) are provided on one side surface of the gas-liquid separator (2204).

3. A gas-water separator for gas extraction according to claim 1, characterized in that: The shape and size of the vertical cross-section of the mounting gasket (2101) match the inner wall of the dispersion bottle (2102), and the vertical cross-section of the mounting gasket (2101) is a cone shape that is larger at the top and smaller at the bottom.

4. A gas-water separator for gas extraction according to claim 1, characterized in that: The outer surface of the ventilating turntable (2104) is provided with a limiting slip ring, and the inner wall surface of the dispersion bottle (2102) is provided with a sliding circular rail. The ventilating turntable (2104) is slidably connected to the inner wall of the dispersion bottle (2102) through the limiting slip ring and the sliding circular rail.

5. A gas-water separator for gas extraction according to claim 1, characterized in that: The collecting scraper (2107) is symmetrically arranged in eight groups around the central axis of the drive shaft (2105). One side surface of the collecting scraper (2107) and the drive base (2106) is porous, and the collecting scraper (2107) has a blade-like cross section along the vertical direction.

6. A gas-water separator for gas extraction according to claim 2, characterized in that: The condensation pipe (2202) is arranged in a spiral shape along the inner wall of the cooling tank (2203), and the condensation pipe (2202) is fixedly connected to the top of the dispersion bottle (2102) through the relay pipe (2201).

7. A gas-water separator for gas extraction according to claim 2, characterized in that: The gas-liquid separator (2204) has a "Y" shaped cross section along the vertical direction, and the gas outlet (2205) is fixedly connected to the top of the liquid separator (2206).

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