Gas-water separation device for underground drilling

Abstract

The gas-water separation device comprises a tank body, and the tank body comprises an upper-layer defoaming part, a middle-layer collecting part and a lower-layer water collecting part which are sequentially connected from top to bottom; a feeding hole is formed in the side wall of the upper-layer defoaming part, an exhaust hole is formed in the top end of the upper-layer defoaming part, and a drainage hole is formed in the bottom of the lower-layer water collecting part; a sealing shell is fixed in the upper-layer defoaming part, a rotating power source, a rotating joint and a rotating shaft are mounted in the sealing shell, a liquid inlet channel and a liquid outlet channel which are communicated with each other are arranged in the rotating shaft, and a condensation sleeve is fixed on the periphery of the upper-layer defoaming part; a condensation mechanism, an upper-layer umbrella plate separator, a lower-layer umbrella plate separator and a connecting frame are fixed on the rotating shaft, a guide cylinder is hermetically fixed at the bottom of the upper-layer defoaming part, a centrifugal conical cylinder sleeves the periphery of the guide cylinder, a drainage filter screen is mounted at the bottom of the centrifugal conical cylinder, and the connecting frame is fixedly connected with the centrifugal conical cylinder. The gas and water separation effect can be improved, automatic cleaning of coal cinder is achieved, and gas extraction work is prevented from being affected due to blockage.

Description

Technical Field

[0001] The invention relates to the technical field of mine mining, in particular to a gas-water separation device used for underground drilling. Background Art

[0002] During the underground drilling and mining process of coal mines, since the coal seams contain a large amount of gas, explosion disasters are prone to occur, which brings great danger to mining. In order to control gas disasters, gas extraction is required. During the gas extraction process, the mixture of gas, water and coal ash in the coal seam will enter the gas-water separation device, where the gas is separated and discharged through the gas pipeline.

[0003] The patent with publication number CN204522516U discloses a gas-water separator, including a gas-water separator cavity, the top of the gas-water separator cavity is connected to an extraction pipe, the side of the gas-water separator cavity is connected to an air inlet pipe, a first baffle is radially installed in the inner cavity of the gas-water separator cavity, a second baffle is installed below the position where the inner cavity of the gas-water separator cavity is connected to the air inlet pipe, and a drain hole is provided on the second baffle. By setting the first baffle and the second baffle, the gas-water mixture hits the bottom surface of the first baffle, releasing the gas from the gas-water mixture, and because the density of the gas is less than the atmospheric density, the gas flows from the gap between the first baffle and the inner cavity of the gas-water separator cavity to the extraction pipe, and the separated water flows to the bottom of the gas-water separator cavity through the drain hole of the second baffle, and is finally discharged to the outside through the automatic drain device.

[0004] The above device only separates gas by the way that the gas-water mixture hits the first baffle, which has the problem of high humidity and water content of gas, and poor gas separation effect. In addition, due to the presence of a mixture of gas, water and coal slag in the gas extraction pipe, coal slag is easily accumulated on the second baffle, blocking the gas pipeline, and cannot be automatically cleaned, affecting the gas extraction work. Therefore, it is necessary to make improvements to ensure the normal extraction of gas. Summary of the invention

[0005] Based on this, it is necessary to provide a gas-water separation device for downhole drilling to address the above technical problems.

[0006] In order to achieve the above-mentioned object, the present invention provides a gas-water separation device for downhole drilling, comprising a tank body, wherein the tank body comprises an upper defoaming part, a middle collecting part and a lower water collecting part which are sequentially connected from top to bottom, the middle collecting part and the lower water collecting part together form a solid collecting chamber, and a material guiding gap which is connected to the solid collecting chamber is provided between the upper defoaming part and the lower water collecting part; a feed inlet is provided on the side wall of the upper defoaming part, an exhaust port is provided at the top of the upper defoaming part, and a drain port is provided at the bottom of the lower water collecting part; A sealing shell is fixed in the upper defoaming part, a rotating power source, a rotating joint and a rotating shaft are installed in the sealing shell, the rotating shaft is rotatably connected to the sealing shell, the rotating shaft is drivingly connected to the output end of the rotating power source, a liquid inlet channel and a liquid outlet channel are arranged in the rotating shaft, the bottom of the liquid inlet channel is connected to the bottom of the liquid outlet channel, the tops of the liquid inlet channel and the liquid outlet channel are respectively connected to the liquid inlet pipe and the liquid outlet pipe through the rotating joint, a condensation sleeve is fixed on the periphery of the upper defoaming part, and the liquid outlet pipe is connected to the input end of the condensation sleeve; A condensing mechanism, an upper umbrella board separator, a lower umbrella board separator and a connecting frame are fixed on the rotating shaft from top to bottom, and the condensing mechanism, the upper umbrella board separator and the lower umbrella board separator are all located in the upper defoaming part; A guide cylinder is sealed and fixed at the bottom of the upper defoaming part, the bottom of the guide cylinder is an open structure, an umbrella-shaped filter plate is fixed in the guide cylinder, a centrifugal cone is sleeved on the outer periphery of the guide cylinder, the top of the centrifugal cone extends to the material guide gap, a drainage filter is installed at the bottom of the centrifugal cone, the lower end of the rotating shaft passes through the umbrella-shaped filter plate and the guide cylinder and is connected to the connecting frame, the connecting frame is fixedly connected to the centrifugal cone, a guide port is provided on the guide cylinder, the material on the umbrella-shaped filter plate can enter the centrifugal cone through the guide port, a first control valve is installed on the guide port, a collecting pipe is provided at the bottom of the middle collecting part, a second control valve is installed on the upper part of the collecting pipe, and a third control valve is installed on the lower part of the collecting pipe.

[0007] Preferably, the condensation mechanism includes a liquid inlet sleeve, a reflux sleeve and a U-shaped condenser tube, the liquid inlet sleeve and the reflux sleeve are both fixedly connected to the rotating shaft, the liquid inlet sleeve is provided with a liquid inlet port and a reflux port, the liquid inlet port is connected with the liquid inlet sleeve and the liquid inlet channel, the reflux port is connected with the reflux sleeve and the liquid outlet channel, one end of the U-shaped condenser tube is fixedly connected with the liquid inlet sleeve, and the other end of the U-shaped condenser tube is fixedly connected with the reflux sleeve.

[0008] Preferably, the bottom surface of the middle-layer collecting part is an inclined surface, and the top end of the collecting pipe is located at the inclined lower end of the bottom surface of the middle-layer collecting part.

[0009] Preferably, a manhole is installed on the middle-level collecting part.

[0010] Preferably, a material level switch is installed on the collecting pipe, and the material level switch is located at the upper part of the collecting pipe and below the second control valve.

[0011] Preferably, a first upper liquid level switch and a first lower liquid level switch are installed on the guide tube, the first upper liquid level switch is located above the first lower liquid level switch, and the first lower liquid level switch is located above the umbrella-shaped filter plate.

[0012] Preferably, a baffle is fixed in the upper defoaming part, and the baffle is located on one side of the output end of the feed inlet; the upper umbrella plate separator is located above the baffle, and the lower umbrella plate separator is located below the baffle.

[0013] Preferably, the umbrella-shaped filter plate is provided with an opening for the rotating shaft to pass through, and an umbrella-shaped baffle is fixed on the rotating shaft, and the umbrella-shaped baffle is located above the umbrella-shaped filter plate.

[0014] Preferably, a second upper layer liquid level switch and a second lower layer liquid level switch are installed on the lower layer water collecting part, the second upper layer liquid level switch is located below the guide tube, and the second lower layer liquid level switch is located below the second upper layer liquid level switch.

[0015] Preferably, a driving pulley is installed at the output end of the rotating power source, a driven pulley is installed on the rotating shaft, and the driving pulley and the driven pulley are connected by a transmission belt.

[0016] Compared with the prior art, this technical solution has at least one of the following beneficial effects: 1. The U-shaped condenser, the upper umbrella plate separator, the lower umbrella plate separator, and the umbrella baffle are driven to rotate by the rotating shaft, and the refrigerant is transported to the liquid inlet pipe through the refrigeration system, so that the inner wall of the upper defoaming part, the rotating shaft, the U-shaped condenser, the upper umbrella plate separator, and the lower umbrella plate separator are all at a relatively low temperature, which is convenient for water vapor condensation; the upper umbrella plate separator and the lower umbrella plate separator can fully break up the mixture of water and gas, and promote the separation of gas and water; the gas contacts the inner wall of the upper defoaming part and the rotating U-shaped condenser, so that the water vapor in the gas condenses on the inner wall of the upper defoaming part and the U-shaped condenser, so that the water content of the gas is further reduced, and the water droplets condensed on the U-shaped condenser can also be quickly thrown out by the centrifugal force, so that the surface of the U-shaped condenser will not be stained with water, which is convenient for water vapor condensation; 2. The mixture of water and coal slag flows downward into the guide tube, and the coal slag is blocked by the umbrella filter plate. By opening the first control valve, the water and coal slag on the umbrella filter plate are introduced into the centrifugal cone through the guide port; the centrifugal cone is driven to rotate by the rotating shaft, and the coal slag gradually moves upward under the centrifugal force and finally enters the solid collection chamber and the collection pipe. When the second control valve is closed, the third control valve is opened to discharge the coal slag in the collection pipe while maintaining the internal pressure of the tank, thereby realizing automatic cleaning of the coal slag and avoiding blockage and affecting the gas extraction work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 for Figure 1 Sectional view along line AA; Figure 3 for Figure 1 Sectional view along line BB; Figure 4 for Figure 1 Sectional view along line CC; Figure 5 for Figure 1A partial enlarged view of point D in the middle; Figure 6 It is a structural schematic diagram of a centrifugal cone; In the figure, 1, tank body; 2, upper defoaming part; 3, middle collecting part; 4, lower water collecting part; 5, solid collecting chamber; 6, material guiding gap; 7, feed inlet; 8, exhaust port; 9, drain port; 10, sealing shell; 11, rotating power source; 12, rotary joint; 13, rotating shaft; 14, liquid inlet channel; 15, liquid outlet channel; 16, liquid inlet pipe; 17, liquid outlet pipe; 18, condensing sleeve; 19, condensing mechanism; 20, upper umbrella plate separator; 21, lower umbrella plate separator; 22, connecting frame; 23, guide tube; 24, umbrella filter plate; 25, centrifugal cone ; 26. Drain filter; 27. Diversion port; 28. First control valve; 29. ​​Collecting pipe; 30. Second control valve; 31. Third control valve; 32. Liquid inlet sleeve; 33. Reflux sleeve; 34. U-shaped condenser; 35. Liquid inlet; 36. Reflux port; 37. Manhole; 38. Material level switch; 39. First upper liquid level switch; 40. First lower liquid level switch; 41. Baffle; 42. Second upper liquid level switch; 43. Second lower liquid level switch; 44. Driving pulley; 45. Driven pulley; 46. Drain valve; 47. Umbrella baffle. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0019] See also Figures 1 to 6 The embodiment of the present application provides a gas-water separation device for downhole drilling, including a tank body 1, which includes an upper defoaming part 2, a middle collecting part 3 and a lower water collecting part 4 connected in sequence from top to bottom, the upper defoaming part 2 and the lower water collecting part 4 are both cylindrical structures, the middle collecting part 3 and the lower water collecting part 4 together form a solid collecting chamber 5, and there is a material guiding gap 6 connected to the solid collecting chamber 5 between the upper defoaming part 2 and the lower water collecting part 4; a feed port 7 is provided on the side wall of the upper defoaming part 2, an exhaust port 8 is provided at the top of the upper defoaming part 2, a drain port 9 is provided at the bottom of the lower water collecting part 4, and a drain valve 46 is installed on the drain port 9; the extraction pipe is connected to the feed port 7, the separated gas is discharged from the exhaust port 8, and the water is discharged from the drain port 9.

[0020] A sealed shell 10 is fixed in the upper defoaming part 2, and a rotating power source 11, a rotating joint 12 and a rotating shaft 13 are installed in the sealed shell 10. The rotating power source 11 uses a variable frequency motor, and the rotating shaft 13 is rotatably connected with the sealed shell 10. The rotating shaft 13 is connected to the output end of the rotating power source 11. Specifically, a driving pulley 44 is installed at the output end of the rotating power source 11, and a driven pulley 45 is installed on the rotating shaft 13. The driving pulley 44 and the driven pulley 45 are connected by a transmission belt. The power source 11 drives the active pulley 44 to rotate, and the active pulley 44 drives the driven pulley 45 and the rotating shaft 13 to rotate through the transmission belt; a liquid inlet channel 14 and a liquid outlet channel 15 are arranged in the rotating shaft 13, the bottom of the liquid inlet channel 14 is connected to the bottom of the liquid outlet channel 15, and the tops of the liquid inlet channel 14 and the liquid outlet channel 15 are respectively connected to the liquid inlet pipe 16 and the liquid outlet pipe 17 through the rotating joint 12, and a condensation sleeve 18 is fixed on the periphery of the upper defoaming part 2, and the condensation sleeve 18 is in contact with the outer wall of the upper defoaming part 2, and the liquid outlet The tube 17 is connected to the input end of the condensing sleeve 18, and the output end of the condensing sleeve 18 is connected to the liquid inlet pipe 16 with the input end and the output end of the refrigeration system respectively; the refrigeration component is an air conditioning refrigeration system of the prior art, including an air compressor, a condenser, a pump, a throttling device and a pipeline, etc., and the low-temperature and low-pressure gaseous refrigerant is sucked into the compressor after coming out of the condensing sleeve 18, and the compressor compresses it to increase the temperature and pressure of the refrigerant, and turns it into a high-temperature and high-pressure gaseous refrigerant, and the high-temperature and high-pressure gaseous refrigerant enters the condenser, and in the condenser, the refrigerant releases heat through heat exchange with the outside, cools itself and liquefies, and becomes a high-temperature and high-pressure liquid refrigerant, and the high-temperature and high-pressure liquid refrigerant is throttled and reduced in pressure by the throttling device, and is converted into a low-temperature and low-pressure liquid refrigerant, and the low-temperature and low-pressure liquid refrigerant enters the liquid inlet pipe 16, absorbs the heat of the air in the rotating shaft 13 and other components and vaporizes, becomes a low-temperature and low-pressure gaseous refrigerant, and enters the compressor again to start a new cycle; the working principle of the air conditioning refrigeration system is the prior art and will not be repeated. The refrigeration system can continuously transport refrigerant to the liquid inlet pipe 16, and the liquid inlet pipe 16 introduces the refrigerant into the liquid inlet channel 14 in the rotating shaft 13 through the rotary joint 12, and then flows into the condensing sleeve 18 from the liquid outlet channel 15 through the rotary joint 12 and the liquid outlet pipe 17, and finally flows back to the input end of the refrigeration system from the output end of the condensing sleeve 18; even if the temperature of the refrigerant entering the condensing sleeve 18 is higher than the temperature of the refrigerant when entering the liquid inlet channel 14, it will still maintain a relatively low temperature, which is convenient for cooling the upper defoaming part 2 and the sealing shell 10. By cooling the sealing shell 10, it is convenient to dissipate heat from the rotating power source 11, and the inner wall of the upper defoaming part 2 is at a relatively low temperature, which is convenient for condensation of water vapor.

[0021] In other embodiments, the input end of the liquid inlet pipe 16 can also be connected to a pressurized low-temperature water source, and the output end of the condensing sleeve 18 can discharge the low-temperature water source after heat exchange, so as to cool the rotating shaft 13 and other components.

[0022] The rotating shaft 13 is respectively fixed with a condensing mechanism 19, an upper layer umbrella plate separator 20, a lower layer umbrella plate separator 21 and a connecting frame 22 from top to bottom, and the condensing mechanism 19, the upper layer umbrella plate separator 20, and the lower layer umbrella plate separator 21 are all located in the upper layer defoaming part 2. A baffle 41 is fixed in the upper layer defoaming part 2, and the baffle 41 is located on the output end side of the feed port 7. The upper layer umbrella plate separator 20 is located above the baffle 41, and the lower layer umbrella plate separator 21 is located below the baffle 41. Both the upper umbrella plate separator 20 and the lower umbrella plate separator 21 are provided with a plurality of separation holes. The size of the separation holes on the lower umbrella plate separator 21 is larger than the size of the separation holes on the upper umbrella plate separator 20, so as to facilitate the passage of water and coal slag. The diameter of the upper umbrella plate separator 20 is larger than the diameter of the lower umbrella plate separator 21. The gap between the lower umbrella plate separator 21 and the tank body 1 is larger, so as to facilitate the passage of coal slag. The gap between the upper umbrella plate separator 20 and the tank body 1 is smaller, so as to facilitate full contact with the gas.

[0023] After the water, gas and coal slag mixture enters the tank body 1 from the feed port 7, it first contacts the baffle 41 and is blocked by the baffle 41. The water, gas and coal slag mixture flows downward, and most of the gas moves upward after passing through the baffle 41. A small part of the gas will contact the upper umbrella plate separator 20. When passing through the lower umbrella plate separator 21, the lower umbrella plate separator 21 separates the larger water droplets entrained by the gas, so that the water droplets condense on the umbrella plate separator and flow downward, and the gas rises and contacts the upper umbrella plate separator 20 at the feed port 7, and the upper umbrella plate separator 20 separates the fine water droplets entrained by the gas.

[0024] A guide cylinder 23 is sealed and fixed at the bottom of the upper defoaming part 2, and the bottom of the guide cylinder 23 is an open structure. An umbrella-shaped filter plate 24 is fixed in the guide cylinder 23. A centrifugal cone 25 is sleeved on the outer periphery of the guide cylinder 23. The top of the centrifugal cone 25 extends to the material guide gap 6. A drainage filter screen 26 is installed at the bottom of the centrifugal cone 25. The lower end of the rotating shaft 13 passes through the umbrella-shaped filter plate 24 and the guide cylinder 23 and is connected to the connecting frame 22. The umbrella-shaped filter plate 24 is provided with an opening for the rotating shaft 13 to pass through. The connecting frame 22 is fixedly connected to the centrifugal cone 25. A guide port 27 is provided on the guide cylinder 23. The material on the umbrella-shaped filter plate 24 can enter the centrifugal cone 25 through the guide port 27. A first control valve 28 is installed on the guide port 27. A collecting pipe 29 is provided at the bottom of the middle collecting part 3. A second control valve 30 is installed on the upper part of the collecting pipe 29, and a third control valve 31 is installed on the lower part of the collecting pipe 29. The mixture of water and coal slag flows downward into the guide tube 23, and the water flows downward through the filter holes of the umbrella-shaped filter plate 24 and accumulates at the bottom of the lower water collecting part 4. The umbrella-shaped filter plate 24 blocks the coal slag from passing through. The first upper liquid level switch 39 and the first lower liquid level switch 40 are installed on the guide tube 23. The first upper liquid level switch 39 is located above the first lower liquid level switch 40, and the first lower liquid level switch 40 is located above the umbrella-shaped filter plate 24. The first upper liquid level switch 39 and the first lower liquid level switch 40 detect the liquid level in the guide tube 23 and on the umbrella-shaped filter plate 24. If there are many coal slags blocking the umbrella-shaped filter plate 24, it will affect the speed of water flowing downward, and the liquid The level will rise. When the first upper level switch 39 detects the level, it is determined that the umbrella filter plate 24 is seriously blocked, and the first control valve 28 can be opened to guide the water and coal slag on the umbrella filter plate 24 into the centrifugal cone 25 through the guide port 27. When the first lower level switch 40 cannot detect the level, the second control valve 30 is closed. The water in the centrifugal cone 25 is discharged downward through the drainage filter 26, and the coal slag accumulates on the drainage filter 26. The centrifugal cone 25 is driven to rotate by the rotating shaft 13. The coal slag gradually moves upward under the centrifugal force, and finally separates from the centrifugal cone 25, and enters the solid collection chamber 5 through the guide gap 6, and then enters the collection pipe 29. When the second control valve 30 is closed, the third control valve 31 is opened, and the coal slag in the collection pipe 29 can be discharged while maintaining the internal pressure of the tank body 1. After the coal slag in the collection pipe 29 is discharged, the third control valve 31 is closed and the second control valve 30 is opened, so that the coal slag can enter the collection pipe 29 normally.

[0025] In order to further improve the dehumidification effect of gas, a condensation mechanism 19 is provided, including a liquid inlet sleeve 32, a reflux sleeve 33 and a U-shaped condenser tube 34. The liquid inlet sleeve 32 and the reflux sleeve 33 are both fixedly connected to the rotating shaft 13. A liquid inlet port 35 and a reflux port 36 are provided on the liquid inlet sleeve 32. The liquid inlet port 35 is connected to the liquid inlet sleeve 32 and the liquid inlet channel 14. The reflux port 36 is connected to the reflux sleeve 33 and the liquid outlet channel 15. One end of the U-shaped condenser tube 34 is fixedly connected to the liquid inlet sleeve 32, and the other end of the U-shaped condenser tube 34 is fixedly connected to the reflux sleeve 33. The cooling water in the liquid inlet channel 14 will enter the liquid inlet sleeve 32 through the liquid inlet port 35, and then enter each U-shaped condenser tube 34, and then enter the reflux sleeve 33 from the U-shaped condenser tube 34, and reflux to the liquid outlet channel 15 through the reflux port 36, so that the refrigerant continues to pass through the U-shaped condenser tube 34, maintaining the low temperature of the U-shaped condenser tube 34, which is convenient for water vapor condensation; at the same time, the U-shaped condenser tube 34 is driven to rotate by the rotating shaft 13, so that the U-shaped condenser tube 34 can be fully in contact with the gas, and the water droplets condensed on the U-shaped condenser tube 34 can also be quickly thrown out by the centrifugal force, so that no water will hang on the surface of the U-shaped condenser tube 34, which is convenient for water vapor condensation.

[0026] In order to facilitate the smooth entry of coal slag in the solid collection chamber 5 into the collecting pipe 29, the bottom surface of the middle collection part 3 is set to be an inclined surface, and the top of the collecting pipe 29 is located at the inclined lower end of the bottom surface of the middle collection part 3. The bottom of the solid collection chamber 5 is inclined, so that the coal slag can be moved into the collecting pipe 29 by gravity. At the same time, due to the effective effect of gravity diversion, in order to improve the cleaning effect of the solid collection chamber 5, a manhole 37 is installed on the middle collection part 3. When the machine is stopped, a cleaning tool can be entered into the solid collection chamber 5 through the manhole 37 to fully clean the solid collection chamber 5.

[0027] In order to facilitate the detection of the material level in the collecting pipe 29, a material level switch 38 is installed on the collecting pipe 29, and the material level switch 38 is located at the upper part of the collecting pipe 29 and below the second control valve 30. When the material level switch 38 detects the material level signal, the coal slag in the collecting pipe 29 is in a state of accumulation, and it needs to be cleaned in time to avoid excessive coal slag in the solid collection chamber 5 and avoid affecting the opening and closing of the second control valve 30.

[0028] Since the umbrella filter plate 24 is provided with an opening for the rotating shaft 13 to pass through, in order to prevent the coal slag from passing through the opening and escaping from the umbrella filter plate 24, an umbrella baffle 47 is fixed on the rotating shaft 13, and the umbrella baffle 47 is located above the umbrella filter plate 24. The umbrella baffle 47 is close to the umbrella filter plate 24, and the umbrella baffle 47 can roughly close the opening. The gap between the umbrella baffle 47 and the umbrella filter plate 24 is less than or equal to the aperture of the filter hole of the umbrella filter plate 24, which can play a role in preventing the coal slag from passing through.

[0029] In order to facilitate the detection of the water level in the lower water collecting part 4, a second upper liquid level switch 42 and a second lower liquid level switch 43 are installed on the lower water collecting part 4. The second upper liquid level switch 42 is located below the guide tube 23, and the second lower liquid level switch 43 is located below the second upper liquid level switch 42. When the second upper liquid level switch 42 detects a liquid level signal, it is necessary to open the drain valve 46 in time to drain the water to avoid excessive water accumulation, resulting in the inability to drain the water in the centrifugal filter cartridge; when the second lower liquid level switch 43 detects a liquid level signal, it is necessary to close the drain valve 46 in time to avoid the water in the lower water collecting part 4 being emptied, resulting in gas leakage and a drop in the air pressure in the tank body 1.

[0030] The first control valve 28, the second control valve 30, the third control valve 31 and the drain valve 46 are all electromagnetic valves or electric valves; a controller is arranged outside the tank body 1, and the rotating power source 11, the first control valve 28, the second control valve 30, the third control valve 31, the material level switch 38, the first upper layer liquid level switch 39, the second upper layer liquid level switch 42, the first lower layer liquid level switch 40, the first lower layer liquid level switch 40 and other electrical components are connected through wires. The wires are sealed into the tank body 1, and no gas leakage will occur; the controller has a built-in control system to control the operation of each electrical component.

[0031] The working process of this embodiment: The rotating power source 11 drives the rotating shaft 13 to rotate, and the rotating shaft 13 drives the U-shaped condenser tube 34, the upper umbrella plate separator 20, the lower umbrella plate separator 21, the umbrella baffle 47, the connecting frame 22, and the centrifugal cone 25 to rotate; the refrigeration system transports the refrigerant to the liquid inlet pipe 16, and the liquid inlet pipe 16 introduces the water into the liquid inlet channel 14, the U-shaped condenser tube 34, and the liquid outlet channel 15 in the rotating shaft 13 through the rotating joint 12, and then flows from the liquid outlet channel 15 through the rotating joint 12 and the liquid outlet pipe 17 into the condensation sleeve 18, and finally flows back from the output end of the condensation sleeve 18 to the input end of the refrigeration system; the inner wall of the upper defoaming part 2, the rotating shaft 13, the U-shaped condenser tube 34, the upper umbrella plate separator 20, and the lower umbrella plate separator 21 are all at a relatively low temperature, which is convenient for water vapor condensation; After the water, gas, and coal slag mixture enters the tank body 1 from the feed port 7, it first contacts the baffle 41 and is blocked by the baffle 41. The water, gas, and coal slag mixture flows downward. Most of the gas moves upward after passing through the baffle 41, and a small part of the gas will contact the upper umbrella plate separator 20. When passing through the lower umbrella plate separator 21, the lower umbrella plate separator 21 separates the larger water droplets entrained by the gas, so that the water droplets condense on the umbrella plate separator and flow downward. The gas rises and contacts the upper umbrella plate separator 20 of the feed port 7. The upper umbrella plate separator 20 separates the fine water droplets entrained by the gas. Water drop separation; the rotation of the upper umbrella plate separator 20 and the lower umbrella plate separator 21 can fully break up the mixture of water and gas and promote the separation of gas and water; the gas moves upward to contact the inner wall of the upper defoaming part 2 and the rotating U-shaped condenser 34, and the water vapor condenses on the inner wall of the upper defoaming part 2 and the U-shaped condenser 34, so that the water content of the gas is further reduced, and the water droplets condensed on the U-shaped condenser 34 can also be quickly thrown out by the centrifugal force, so that the surface of the U-shaped condenser 34 will not be stained with water, which is convenient for water vapor condensation, and finally the gas is discharged from the exhaust port 8, and the exhaust port 8 is connected to the gas collection pipeline; The mixture of water and coal slag flows downward into the guide cylinder 23, and the water flows downward through the filter holes of the umbrella filter plate 24 and accumulates at the bottom of the lower water collection part 4. The umbrella filter plate 24 blocks the coal slag from passing through. When the first upper layer liquid level switch 39 detects the liquid level, the first control valve 28 is opened, and the water and coal slag on the umbrella filter plate 24 are introduced into the centrifugal cone 25 through the guide port 27; when the first lower layer liquid level switch 40 cannot detect the liquid level, the second control valve 30 is closed; The water in the centrifugal cone 25 is discharged downward through the drainage filter 26, and the coal slag accumulates on the drainage filter 26. The rotation speed of the rotary power source 11 is controlled to be accelerated, and the centrifugal cone 25 is driven to rotate through the rotating shaft 13. The coal slag is gradually moved upward by the centrifugal force, and finally separated from the centrifugal cone 25, and enters the solid collection chamber 5 through the material guide gap 6, and then enters the collecting pipe 29. After the centrifugal time is reached, the rotation speed of the rotary power source 11 is controlled to be reduced, so that the water that subsequently enters the centrifugal cone 25 can be smoothly discharged downward through the drainage filter 26; When the second control valve 30 is closed, the third control valve 31 is opened to discharge the coal slag in the collecting pipe 29 while maintaining the internal pressure of the tank body 1; after the coal slag in the collecting pipe 29 is discharged, the third control valve 31 is closed and the second control valve 30 is opened to allow the coal slag to enter the collecting pipe 29 normally; When the second upper liquid level switch 42 detects a liquid level signal, the drain valve 46 opens to drain the water to prevent excessive water accumulation; when the second lower liquid level switch 43 detects a liquid level signal, the drain valve 46 closes to prevent the water in the lower water collection part 4 from being drained, causing gas leakage and a drop in air pressure in the tank body 1.

[0032] It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these modifications and improvements all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A gas-water separation device for downhole drilling, comprising a tank body (1), characterized in that: The tank body (1) comprises an upper defoaming portion (2), a middle collecting portion (3) and a lower water collecting portion (4) which are connected in sequence from top to bottom; the middle collecting portion (3) and the lower water collecting portion (4) together form a solid collecting chamber (5); a material guide gap (6) which is in communication with the solid collecting chamber (5) is provided between the upper defoaming portion (2) and the lower water collecting portion (4); a feed inlet (7) is provided on the side wall of the upper defoaming portion (2); an exhaust port (8) is provided at the top end of the upper defoaming portion (2); and a drain port (9) is provided at the bottom of the lower water collecting portion (4); A sealing shell (10) is fixed inside the upper defoaming portion (2), a rotating power source (11), a rotating joint (12) and a rotating shaft (13) are installed inside the sealing shell (10), the rotating shaft (13) is rotatably connected to the sealing shell (10), the rotating shaft (13) is drivingly connected to the output end of the rotating power source (11), a liquid inlet channel (14) and a liquid outlet channel (15) are provided inside the rotating shaft (13), the bottom of the liquid inlet channel (14) is connected to the bottom of the liquid outlet channel (15), the tops of the liquid inlet channel (14) and the liquid outlet channel (15) are respectively connected to a liquid inlet pipe (16) and a liquid outlet pipe (17) via a rotating joint (12), a condensation jacket (18) is fixed to the periphery of the upper defoaming portion (2), and the liquid outlet pipe (17) is connected to the input end of the condensation jacket (18); A condensing mechanism (19), an upper umbrella board separator (20), a lower umbrella board separator (21) and a connecting frame (22) are fixed on the rotating shaft (13) from top to bottom, respectively; the condensing mechanism (19), the upper umbrella board separator (20) and the lower umbrella board separator (21) are all located in the upper defoaming portion (2); A guide tube (23) is sealed and fixed at the bottom of the upper defoaming portion (2). The bottom of the guide tube (23) is an open structure. An umbrella-shaped filter plate (24) is fixed inside the guide tube (23). A centrifugal cone (25) is sleeved on the outer periphery of the guide tube (23). The top of the centrifugal cone (25) extends to the material guide gap (6). A drainage filter screen (26) is installed at the bottom of the centrifugal cone (25). The lower end of the rotating shaft (13) passes through the umbrella-shaped filter plate (24) and the guide tube (23) and is connected to the connecting frame (22). The connecting frame (22) is fixedly connected to the centrifugal cone (25), a guide port (27) is provided on the guide cylinder (23), materials on the umbrella-shaped filter plate (24) can enter the centrifugal cone (25) through the guide port (27), a first control valve (28) is installed on the guide port (27), a collecting pipe (29) is provided at the bottom of the middle collecting part (3), a second control valve (30) is installed on the upper part of the collecting pipe (29), and a third control valve (31) is installed on the lower part of the collecting pipe (29).

2. The gas-water separation device for downhole drilling according to claim 1, characterized in that: The condensation mechanism (19) comprises a liquid inlet sleeve (32), a reflux sleeve (33) and a U-shaped condenser tube (34); the liquid inlet sleeve (32) and the reflux sleeve (33) are both fixedly connected to the rotating shaft (13); a liquid inlet port (35) and a reflux port (36) are provided on the liquid inlet sleeve (32); the liquid inlet port (35) is connected to the liquid inlet sleeve (32) and the liquid inlet channel (14); the reflux port (36) is connected to the reflux sleeve (33) and the liquid outlet channel (15); one end of the U-shaped condenser tube (34) is fixedly connected to the liquid inlet sleeve (32); and the other end of the U-shaped condenser tube (34) is fixedly connected to the reflux sleeve (33).

3. The gas-water separation device for downhole drilling according to claim 1, characterized in that: The bottom surface of the middle-layer collecting portion (3) is an inclined surface, and the top end of the collecting pipe (29) is located at the inclined lower end of the bottom surface of the middle-layer collecting portion (3).

4. The gas-water separation device for downhole drilling according to claim 3, characterized in that: A manhole (37) is installed on the middle-layer collecting part (3).

5. The gas-water separation device for downhole drilling according to claim 1, characterized in that: A material level switch (38) is installed on the material collecting pipe (29), and the material level switch (38) is located at the upper part of the material collecting pipe (29) and below the second control valve (30).

6. The gas-water separation device for downhole drilling according to claim 1, characterized in that: A first upper layer liquid level switch (39) and a first lower layer liquid level switch (40) are mounted on the guide tube (23); the first upper layer liquid level switch (39) is located above the first lower layer liquid level switch (40); and the first lower layer liquid level switch (40) is located above the umbrella-shaped filter plate (24).

7. The gas-water separation device for downhole drilling according to claim 1, characterized in that: A baffle (41) is fixed inside the upper defoaming portion (2), and the baffle (41) is located on one side of the output end of the feed inlet (7); the upper umbrella plate separator (20) is located above the baffle (41), and the lower umbrella plate separator (21) is located below the baffle (41).

8. The gas-water separation device for downhole drilling according to claim 1, characterized in that: The umbrella-shaped filter plate (24) is provided with an opening for the rotating shaft (13) to pass through, and an umbrella-shaped baffle (47) is fixed on the rotating shaft (13), and the umbrella-shaped baffle (47) is located above the umbrella-shaped filter plate (24).

9. The gas-water separation device for downhole drilling according to claim 1, characterized in that: A second upper layer liquid level switch (42) and a second lower layer liquid level switch (43) are installed on the lower layer water collecting portion (4); the second upper layer liquid level switch (42) is located below the guide tube (23); and the second lower layer liquid level switch (43) is located below the second upper layer liquid level switch (42).

10. The gas-water separation device for downhole drilling according to claim 1, characterized in that: A driving pulley (44) is installed at the output end of the rotating power source (11), and a driven pulley (45) is installed on the rotating shaft (13). The driving pulley (44) and the driven pulley (45) are connected to each other via a transmission belt.

Images