Adjustable coal bed gas detection and acquisition device and acquisition method

Abstract

The invention discloses an adjustable coalbed methane detection and collection device and method, and relates to the technical field of coalbed methane detection and collection. The adjustable coalbed methane detection and collection device comprises a cylinder, a bottom cylinder is fixedly installed at the bottom of the inner wall of the cylinder, a flow guide assembly is arranged in the middle of the top face of the cylinder, and the flow guide assembly comprises a round shell; the round shell is fixedly installed in the middle of the top face of the cylinder and located between the two hoses, a micro motor is fixedly installed at the top end in the round shell, a long rod is rotatably installed at the top end in the cylinder in a penetrating mode, and the top face of the long rod is fixedly connected with the bottom face of a rotating shaft of the micro motor. The end, away from the micro motor, of the long rod is rotationally connected with the bottom end of the interior of the bottom cylinder, an arc fan is fixed to the bottom of the outer wall of the long rod, and a net cylinder is welded to the inner wall of the bottom cylinder, coal ash is fanned off through rotation of the arc fan, and therefore the problem that a large amount of coal ash enters the bottom cylinder, and consequently an extracted gas sample is turbid is solved.

Description

Technical Field

[0001] The invention relates to the technical field of coalbed methane detection and collection, and in particular to an adjustable coalbed methane detection and collection device and a collection method. Background Art

[0002] Natural gas is often located in the middle of coal seams. In the process of natural gas exploration, operators need to drill holes in coal mines and extract gas samples from the coal seams for testing. The function of the adjustable coalbed methane detection and collection device is to extract natural gas from the coal seams deep in the well, improve the work efficiency of operators, and ensure that the equipment can extract gas from the coal seams.

[0003] Patent No. CN220285739U discloses an adjustable coalbed methane detection and collection device, which aims to solve the technical problems that the coalbed methane detection and collection device in the prior art is easy to wear against the wall layer of the channel when entering the drilling channel, and the collection port of the collection device is difficult to quickly adjust to make it move stably along the wall layer of the channel. The coalbed methane detection and collection device includes a collection tube and a fixed ring fixedly installed on the outer wall of the collection tube, the outer wall of the fixed ring is fixedly provided with a uniformly distributed first groove body, the inner wall of the first groove body is rotatably provided with a movable arm, and one end of the movable arm is fixedly provided with a second groove body, and the coalbed methane detection and collection device is provided with an adjustable and fixed first roller and a second roller. In the channel entering the drilling channel, the first roller or the second roller is made to fit with the inner wall of the drilling channel, so as to avoid the collection device from entering the drilling channel and generating friction with the wall layer of the channel.

[0004] However, the current adjustable coalbed methane detection and collection device has the following problems: in the process of extracting natural gas for detection, the coal ash in the coal seam will be extracted by the equipment, which may easily cause the extracted natural gas sample to be mixed with coal ash, thereby causing a large amount of coal ash to enter the bottom tube and cause the extracted gas sample to be turbid. Therefore, we propose an adjustable coalbed methane detection and collection device and a collection method. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an adjustable coalbed methane detection and collection device and collection method, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an adjustable coalbed methane detection and collection device, comprising a cylinder, two hoses are passed through and fixed on the top surface of the cylinder, a bottom cylinder is fixedly installed at the bottom of the inner wall of the cylinder, a plurality of air inlet holes are opened on the outer wall of the bottom cylinder, an annular chute is opened on the top surface of the bottom cylinder, a rubber pad is fixed on the bottom surface of the bottom cylinder, and a flow guide component is arranged in the middle of the top surface of the cylinder; The flow guide component includes a round shell, which is fixedly installed in the middle of the top surface of the cylinder. The round shell is located between two hoses. A micro motor is fixedly installed on the top of the inner part of the round shell. A long rod is penetrated and rotatably installed on the top of the inner part of the cylinder. The top surface of the long rod is fixedly connected to the bottom surface of the rotating shaft of the micro motor. One end of the long rod away from the micro motor is rotatably connected to the inner bottom end of the bottom cylinder. An arc fan is fixed to the bottom of the outer wall of the long rod. A mesh cylinder is welded to the inner wall of the bottom cylinder. The arc fan is located in the middle of the inner part of the mesh cylinder. The mesh cylinder blocks the coal ash in the coal seam from entering the bottom cylinder. The arc fan rotates to fan away the coal ash. When there is a lot of coal ash in the coal seam, the rotation speed of the micro motor rotating shaft is increased, the rotation speed of the long rod is accelerated, and the long rod drives the arc fan to rotate faster, thereby reducing the large amount of coal ash in the coal seam from entering the bottom cylinder. An anti-blocking component is provided at the bottom of the outer wall of the long rod; The anti-blocking component includes a horizontal plate, which is fixed on the circumferential surface of the long rod, and the horizontal plate is located above the arc fan. The bottom surface of the horizontal plate is slidably connected with the inner wall of the annular slide groove of the bottom cylinder. Two vertical plates are fixed on the bottom surface of the horizontal plate. A sponge block is fixed at the bottom of the side of the vertical plates away from each other. The side of the two sponge blocks away from each other is in sliding contact with the inner wall of the net cylinder. The vertical plate drives the sponge block to rotate forward, and the rough surface of the sponge block slides on the wall surface of the net cylinder. Under the action of friction, the net cylinder will generate a certain vibration amplitude, so that the net cylinder can shake off the coal ash in the net seam. A mixing device is arranged on the top surface of the transverse plate, and an air filtering device is arranged on the top surface of the mixing device.

[0007] According to the above technical solution, an air pump is fixed to one end of the two hoses away from the cylinder, the arc fan is provided with three blades, and the sides of the two sponge blocks away from each other are set as a rough surface.

[0008] According to the above technical solution, the mixing device includes an annular plate 1, a rotary blade fan, annular plate 2, and a long hole plate, wherein the annular plate 1 is fixed to the top surface of the horizontal plate, the rotary blade fan is fixed to the top surface of the annular plate 1, the annular plate 2 is fixed to the top of the inner wall of the cylinder, and the long hole plate is fixed to the end of the rotary blade fan away from the annular plate 1. The bottom surface of the long hole plate is in sliding contact with the top surface of the annular plate 2. During the forward rotation of the rotary blade fan, the rotary blade fan rotates to stir the gas in the cylinder.

[0009] According to the above technical solution, the mixing device also includes two connecting columns, two inclined plates and two cotton cloth blocks. The two connecting columns are fixed on both sides of the top surface of the long hole plate, the two inclined plates are respectively fixed on the outer walls of the two connecting columns, and the two cotton cloth blocks are respectively fixed on the bottom surfaces of the two inclined plates. During the forward rotation of the cotton cloth blocks, the cotton cloth blocks wipe the surface of the annular plate 2 clean.

[0010] According to the above technical solution, the long hole plate is sleeved on the outer wall of the long rod, and the bottom surfaces of the two cotton cloth blocks are in sliding contact with the top surface of the second annular plate.

[0011] According to the above technical solution, the gas filtering device includes two short rods, an annular shell, a honeycomb cotton block and a filter screen. The two short rods are fixed on both sides of the top surface of the long hole plate, and the two short rods are respectively located on the side where the two connecting columns are away from each other. The annular shell is fixed on the top surface of the two short rods, and the honeycomb cotton block is fixedly installed on the inner top of the annular shell. The filter screen is fixed on the top of the inner wall of the annular shell. The natural gas with a small amount of coal ash contacts the honeycomb cotton block, and the pores of the honeycomb cotton block block a small amount of coal ash. The honeycomb cotton block discharges the filtered natural gas through the filter screen.

[0012] According to the above technical solution, the air filtering device also includes two thin rods, two U-shaped plates and two rubber rollers. The two thin rods are respectively fixedly connected to the outer walls of the two short rods, the two U-shaped plates are respectively fixed to the ends of the two thin rods away from each other, and the two rubber rollers are respectively rotatably installed on the inner walls of the two U-shaped plates. The rubber rollers roll on the wall surface of the cylinder, and under the action of friction, the long hole plate will not shake violently during rotation.

[0013] According to the above technical solution, the honeycomb cotton block is sleeved on the outer wall of the long rod, the filter screen is sleeved on the outer wall of the long rod, the filter screen is located above the honeycomb cotton block, and the outer walls of the two rubber rollers are in rotational contact with the inner wall of the cylinder.

[0014] A collection method of an adjustable coalbed methane detection and collection device, using an adjustable coalbed methane detection and collection device, comprises the following steps: S1. The operator puts the cylinder into the well, the hose extracts the gas in the cylinder, the cylinder extracts the gas in the bottom cylinder, and the bottom cylinder extracts the natural gas in the coal seam through the air inlet for detection; S2. The mesh tube blocks the coal ash in the coal seam from entering the bottom tube, and the arc fan rotates to fan away the coal ash, increasing the rotation speed of the micro motor shaft, and the rotation speed of the long rod is accelerated, and the long rod drives the arc fan to rotate faster; S3, the vertical plate drives the sponge block to rotate forward, and the rough surface of the sponge block slides on the wall of the net cylinder; S4. During the forward rotation of the rotary blade fan, the rotary blade fan rotates and stirs the gas in the cylinder; S5. During the forward rotation of the cotton cloth, the cotton cloth wipes the surface of the annular plate 2 clean; S6, the natural gas with a small amount of coal ash comes into contact with the honeycomb cotton block, the pores of the honeycomb cotton block block a small amount of coal ash, and the honeycomb cotton block discharges the filtered natural gas through the filter screen; S7. The rubber roller rolls on the wall of the cylinder. Under the action of friction, the long hole plate will not vibrate violently when rotating.

[0015] The present invention provides an adjustable coalbed methane detection and collection device, which has the following beneficial effects: (1) The present invention uses a round shell, a micro motor, a long rod, an arc fan, a mesh tube, a horizontal plate and a vertical plate in conjunction with a sponge block. The mesh tube blocks the coal ash in the coal seam from entering the bottom tube. The arc fan rotates to fan away the coal ash. When there is a lot of coal ash in the coal seam, the rotation speed of the micro motor shaft is increased, the rotation speed of the long rod is accelerated, and the long rod drives the arc fan to rotate faster, thereby reducing the large amount of coal ash in the coal seam entering the bottom tube and preventing a large amount of coal ash from entering the bottom tube and causing turbidity in the extracted gas sample. In addition, the vertical plate drives the sponge block to rotate forward, and the rough surface of the sponge block slides on the wall of the mesh tube. Under the action of friction, the mesh tube will generate a certain vibration amplitude, allowing the mesh tube to shake off the coal ash in the mesh gap, thereby preventing the coal ash from being blocked in the mesh gap of the mesh tube and causing poor air intake effect of the equipment.

[0016] (2) The present invention arranges a mixing device so that the annular plate 1, the rotary blade fan, the annular plate 2, the long hole plate, the connecting column and the inclined plate cooperate with the cotton cloth block. During the forward rotation of the rotary blade fan, the rotary blade fan rotates to stir the gas in the cylinder to prevent uneven natural gas sampling from causing poor extraction effect of the equipment. During the forward rotation of the cotton cloth block, the cotton cloth block wipes the surface of the annular plate 2 clean to prevent coal ash from adhering to the surface of the annular plate 2 and causing the equipment to rotate unsmoothly.

[0017] (3) The present invention sets up a gas filtering device so that the short rod, the annular shell, the honeycomb cotton block, the filter screen, the thin rod and the U-shaped plate cooperate with the rubber roller. The natural gas with a small amount of coal ash contacts the honeycomb cotton block. The pores of the honeycomb cotton block block the small amount of coal ash. The honeycomb cotton block discharges the filtered natural gas through the filter screen to prevent the natural gas sample from containing a small amount of coal ash, which may cause the hose to be easily corroded and aged by the coal ash. The rubber roller rolls on the wall of the cylinder. Under the action of friction, the long hole plate will not shake violently during rotation, which may prevent the long hole plate from shaking violently during rotation and cause the equipment to vibrate and rub in the coal seam. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the present invention as a whole; Figure 2 is a schematic diagram of the internal components of the present invention; Figure 3 It is a cross-sectional schematic diagram of the cylinder and the bottom cylinder of the present invention; Figure 4 For the present invention Figure 3 A local enlarged schematic diagram of the middle A; Figure 5 is a schematic diagram of a mixing device of the present invention; Figure 6 For the present invention Figure 5 A partial enlarged schematic diagram of point B in the middle; Figure 7 is a cross-sectional schematic diagram of the air filter device of the present invention; Figure 8For the present invention Figure 7 A partial enlarged schematic diagram of point C in the middle.

[0019] In the figure: 1. cylinder; 2. hose; 3. bottom cylinder; 4. rubber pad; 11. flow guide assembly; 111. round shell; 112. micro motor; 113. long rod; 114. arc fan; 115. mesh cylinder; 12. anti-blocking assembly; 121. horizontal plate; 122. vertical plate; 123. sponge block; 5. mixing device; 51. annular plate one; 52. rotary blade fan; 53. annular plate two; 54. long hole plate; 55. connecting column; 56. inclined plate; 57. cotton cloth block; 6. air filtering device; 61. short rod; 62. annular shell; 63. honeycomb cotton block; 64. filter screen; 65. thin rod; 66. U-shaped plate; 67. rubber roller. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] See also Figure 1-Figure 8 One embodiment of the present invention is: an adjustable coalbed methane detection and collection device, comprising a cylinder 1, two hoses 2 are passed through and fixed on the top surface of the cylinder 1, a bottom cylinder 3 is fixedly installed on the bottom of the inner wall of the cylinder 1, a plurality of air inlet holes are opened on the outer wall of the bottom cylinder 3, an annular chute is opened on the top surface of the bottom cylinder 3, a rubber pad 4 is fixed on the bottom surface of the bottom cylinder 3, and a vacuum pump is fixed on one end of the two hoses 2 away from the cylinder 1; A flow guide assembly 11 is arranged in the middle of the top surface of the cylinder 1. The flow guide assembly 11 includes a round shell 111, which is fixedly installed in the middle of the top surface of the cylinder 1. The round shell 111 is located between the two hoses 2. A micro motor 112 is fixedly installed on the top of the inner part of the round shell 111. A long rod 113 is rotatably installed through the top of the inner part of the cylinder 1. The top surface of the long rod 113 is fixedly connected to the bottom surface of the rotating shaft of the micro motor 112. One end of the long rod 113 away from the micro motor 112 is rotatably connected to the inner bottom end of the bottom cylinder 3. An arc fan 114 is fixed to the bottom of the outer wall of the long rod 113. The inner wall of the bottom cylinder 3 is welded with a mesh cylinder 11 5. The arc fan 114 is located in the middle of the mesh tube 115. The arc fan 114 is provided with three blades. During the gas extraction process, the mesh tube 115 blocks the coal ash in the coal seam from entering the bottom tube 3. The arc fan 114 rotates to fan away the coal ash. When there is a lot of coal ash in the coal seam, the rotation speed of the rotating shaft of the micro motor 112 is increased, and the rotation speed of the long rod 113 is accelerated. The long rod 113 drives the arc fan 114 to rotate faster, thereby reducing the large amount of coal ash in the coal seam from entering the bottom tube 3, and avoiding the coal seam gas detection and collection device from entering the bottom tube 3 when extracting natural gas samples for detection, causing the extracted gas samples to be turbid; The bottom of the outer wall of the long rod 113 is provided with an anti-blocking component 12, which includes a horizontal plate 121, which is fixed to the circumferential surface of the long rod 113, and is located above the arc fan 114. The bottom surface of the horizontal plate 121 is slidably connected with the inner wall of the annular groove of the bottom cylinder 3, and two vertical plates 122 are fixed to the bottom surface of the horizontal plate 121. A sponge block 123 is fixed to the bottom of the side of the vertical plates 122 away from each other, and the side of the two sponge blocks 123 away from each other is connected to the inner wall of the net cylinder 115. Sliding contact, the sides of the two sponge blocks 123 that are away from each other are set to a rough surface, the vertical plate 122 drives the sponge block 123 to rotate forward, and the rough surface of the sponge block 123 slides on the wall surface of the mesh tube 115. Under the action of friction, the mesh tube 115 will produce a certain vibration amplitude, allowing the mesh tube 115 to shake off the coal ash in the mesh gap, thereby preventing the coal ash from being blocked in the mesh gap of the mesh tube 115 when the coalbed methane detection and collection device is extracting natural gas samples for detection, resulting in poor air intake effect of the equipment.

[0022] During use, the operator puts the cylinder 1 into the well, the cylinder 1 drives the bottom cylinder 3 to move downward, the bottom cylinder 3 drives the rubber pad 4, when it reaches the middle of the coal seam, the rubber pad 4 contacts the coal seam, the operator starts the vacuum pump, the hose 2 extracts the gas in the cylinder 1, the cylinder 1 extracts the gas in the bottom cylinder 3, the bottom cylinder 3 extracts the natural gas in the coal seam through the air inlet hole for detection, because the coal ash in the coal seam will be extracted by the equipment during the process of extracting natural gas for detection by the coalbed methane detection and collection device, which may easily cause the extracted natural gas sample to be mixed with coal ash, at this time, the cylinder 1 supports the round shell 111, the operator starts the micro motor 112 in the round shell 111, the rotating shaft of the micro motor 112 starts to rotate forward, and the rotating shaft of the micro motor 112 drives the long The rod 113 rotates forward, and the long rod 113 rotates forward in the cylinder 1. The long rod 113 drives the arc fan 114 to rotate forward. The arc fan 114 rotates in the mesh tube 115. During the gas extraction process, the mesh tube 115 blocks the coal ash in the coal seam from entering the bottom tube 3. The arc fan 114 rotates to fan away the coal ash. When there is a lot of coal ash in the coal seam, the rotation speed of the micro motor 112 shaft is increased, and the rotation speed of the long rod 113 is accelerated. The long rod 113 drives the arc fan 114 to rotate faster, thereby reducing the large amount of coal ash in the coal seam entering the bottom tube 3, preventing a large amount of coal ash from entering the bottom tube 3 when the equipment is in use, thereby avoiding a large amount of coal ash entering the bottom tube 3 when the coalbed methane detection and collection device extracts natural gas samples for detection, causing the extracted gas samples to be turbid.

[0023] When the long rod 113 rotates forward in the cylinder 1, the long rod 113 drives the horizontal plate 121 to rotate forward, and the horizontal plate 121 rotates in the annular groove of the bottom cylinder 3. The horizontal plate 121 drives the vertical plate 122 to rotate forward, and the vertical plate 122 drives the sponge block 123 to rotate forward. The rough surface of the sponge block 123 slides on the wall surface of the mesh cylinder 115. Under the action of friction, the mesh cylinder 115 will produce a certain vibration amplitude, allowing the mesh cylinder 115 to shake off the coal ash in the mesh gap, preventing the coal ash from being blocked in the mesh gap of the mesh cylinder 115 when the equipment is in use, thereby avoiding the problem of poor air intake effect of the equipment caused by coal ash being blocked in the mesh gap of the mesh cylinder 115 when the coalbed methane detection and collection device extracts natural gas samples for detection.

[0024] See also Figure 1-Figure 8 On the basis of the above embodiment, another embodiment of the present invention further includes a mixing device 5 and a gas filtering device 6, wherein the top surface of the horizontal plate 121 is provided with a mixing device 5, and the mixing device 5 includes an annular plate 1 51, a rotary blade fan 52, an annular plate 2 53 and a long hole plate 54, the annular plate 1 51 is fixed on the top surface of the horizontal plate 121, the rotary blade fan 52 is fixed on the top surface of the annular plate 1 51, the annular plate 2 53 is fixed on the top of the inner wall of the cylinder 1, and the long hole plate 54 is fixed on the end of the rotary blade fan 52 away from the annular plate 1 51, the bottom surface of the long hole plate 54 is in sliding contact with the top surface of the annular plate 2 53, and the long hole plate 54 is sleeved on the outer wall of the long rod 113. During the forward rotation of the rotary blade fan 52, the rotary blade fan 52 rotates to stir the gas in the cylinder 1, so as to avoid uneven natural gas sampling when the coalbed methane detection and collection device extracts natural gas samples for detection, resulting in poor extraction effect of the equipment.

[0025] The mixing device 5 also includes two connecting columns 55, two inclined plates 56 and two cotton cloth blocks 57. The two connecting columns 55 are fixed on both sides of the top surface of the long hole plate 54, the two inclined plates 56 are respectively fixed on the outer walls of the two connecting columns 55, and the two cotton cloth blocks 57 are respectively fixed on the bottom surfaces of the two inclined plates 56. The bottom surfaces of the two cotton cloth blocks 57 are in sliding contact with the top surface of the annular plate 2 53. During the forward rotation of the cotton cloth blocks 57, the cotton cloth blocks 57 wipe the surface of the annular plate 2 53 clean to avoid the coal ash adhering to the surface of the annular plate 2 53 when the coalbed methane detection and collection device extracts natural gas samples for detection, causing the equipment to rotate unsmoothly.

[0026] The top surface of the mixing device 5 is provided with an air filter device 6, which includes two short rods 61, an annular shell 62, a honeycomb cotton block 63 and a filter screen 64. The two short rods 61 are fixed on both sides of the top surface of the long hole plate 54, and the two short rods 61 are respectively located on the side away from each other of the two connecting columns 55. The annular shell 62 is fixed on the top surface of the two short rods 61, the honeycomb cotton block 63 is fixedly installed on the inner top of the annular shell 62, the filter screen 64 is fixed on the top of the inner wall of the annular shell 62, and the honeycomb cotton block 63 is sleeved on the long rods. On the outer wall of 113, the filter screen 64 is sleeved on the outer wall of the long rod 113, and the filter screen 64 is located above the honeycomb cotton block 63. During the forward rotation of the honeycomb cotton block 63, the natural gas with a small amount of coal ash contacts the honeycomb cotton block 63, and the pores of the honeycomb cotton block 63 block a small amount of coal ash. The honeycomb cotton block 63 discharges the filtered natural gas through the filter screen 64, so as to avoid the coalbed methane detection and collection device from extracting natural gas samples for detection due to a small amount of coal ash in the natural gas sample, which causes the hose 2 to be easily corroded and aged by the coal ash.

[0027] The gas filtering device 6 also includes two thin rods 65, two U-shaped plates 66 and two rubber rollers 67. The two thin rods 65 are respectively fixedly connected to the outer walls of the two short rods 61, and the two U-shaped plates 66 are respectively fixed to the ends of the two thin rods 65 away from each other. The two rubber rollers 67 are respectively rotatably installed on the inner walls of the two U-shaped plates 66. The outer walls of the two rubber rollers 67 are in rotational contact with the inner wall of the cylinder 1. The rubber rollers 67 roll on the wall surface of the cylinder 1. Under the action of friction, the long hole plate 54 will not shake violently during rotation, thereby avoiding the long hole plate 54 from shaking violently during rotation when the coalbed methane detection and collection device extracts natural gas samples for detection, causing the equipment to vibrate and rub in the coal seam.

[0028] A collection method of an adjustable coalbed methane detection and collection device, using an adjustable coalbed methane detection and collection device, comprises the following steps: S1. The operator puts the cylinder 1 into the well, and the hose 2 extracts the gas in the cylinder 1. The cylinder 1 extracts the gas in the bottom cylinder 3. The bottom cylinder 3 extracts the natural gas in the coal seam through the air inlet for detection; S2, the mesh tube 115 blocks the coal ash in the coal seam from entering the bottom tube 3, the arc fan 114 rotates to fan away the coal ash, increasing the rotation speed of the micro motor 112 shaft, the rotation speed of the long rod 113 is accelerated, and the long rod 113 drives the arc fan 114 to rotate faster; S3, the vertical plate 122 drives the sponge block 123 to rotate forward, and the rough surface of the sponge block 123 slides on the wall surface of the net cylinder 115; S4, during the forward rotation of the rotary blade fan 52, the rotary blade fan 52 rotates and stirs the gas in the cylinder 1; S5. During the forward rotation of the cotton cloth block 57, the cotton cloth block 57 cleans the surface of the annular plate 2 53; S6, the natural gas with a small amount of coal ash contacts the honeycomb cotton block 63, the pores of the honeycomb cotton block 63 block the small amount of coal ash, and the honeycomb cotton block 63 discharges the filtered natural gas through the filter screen 64; S7, the rubber roller 67 rolls on the wall surface of the cylinder 1, and under the action of friction, the long hole plate 54 will not vibrate violently when rotating.

[0029] When the horizontal plate 121 rotates in the annular groove of the bottom cylinder 3, the horizontal plate 121 drives the annular plate 1 51 to rotate forward, the annular plate 1 51 drives the rotary blade fan 52 to rotate forward, the rotary blade fan 52 drives the long hole plate 54 to rotate forward, and the long hole plate 54 rotates forward on the annular plate 2 53. During the forward rotation of the rotary blade fan 52, the rotary blade fan 52 rotates to stir the gas in the cylinder 1, preventing the natural gas sample extracted by the equipment from being uneven when the equipment is in use, thereby avoiding the problem of poor extraction effect of the equipment caused by uneven natural gas sampling when the coalbed methane detection and collection device extracts natural gas samples for detection.

[0030] When the long hole plate 54 rotates forward on the annular plate 2 53, the long hole plate 54 drives the connecting column 55 to rotate forward, the connecting column 55 drives the inclined plate 56 to rotate forward, and the inclined plate 56 drives the cotton cloth block 57 to rotate forward. During the forward rotation of the cotton cloth block 57, the cotton cloth block 57 wipes the surface of the annular plate 2 53 clean to prevent coal ash from adhering to the surface of the annular plate 2 53 when the equipment is in use, thereby avoiding the problem of coal ash adhering to the surface of the annular plate 2 53 when the coalbed methane detection and collection device extracts natural gas samples for detection, causing the equipment to rotate unsmoothly.

[0031] When the long hole plate 54 rotates forward on the annular plate 53, the long hole plate 54 drives the short rod 61 to rotate forward, the short rod 61 drives the annular shell 62 to rotate forward, the annular shell 62 drives the honeycomb cotton block 63 to rotate forward, and the annular shell 62 drives the filter 64 to rotate forward. During the forward rotation of the honeycomb cotton block 63, the natural gas with a small amount of coal ash contacts the honeycomb cotton block 63, and the pores of the honeycomb cotton block 63 block a small amount of coal ash. The honeycomb cotton block 63 discharges the filtered natural gas through the filter 64, preventing the natural gas sample from containing a small amount of coal ash when the equipment is in use, thereby avoiding the problem that when the coalbed methane detection and collection device extracts natural gas samples for detection, the natural gas sample contains a small amount of coal ash, which causes the hose 2 to be easily corroded and aged by the coal ash.

[0032] While the long hole plate 54 drives the short rod 61 to rotate forward, the short rod 61 drives the thin rod 65 to rotate forward, the thin rod 65 drives the U-shaped plate 66 to rotate forward, and the U-shaped plate 66 drives the rubber roller 67 to rotate forward. The rubber roller 67 rolls on the wall of the cylinder 1. Under the action of friction, the long hole plate 54 will not shake violently during rotation, thereby preventing the long hole plate 54 from shaking violently during rotation when the equipment is in use, thereby avoiding the coalbed methane detection and collection device from shaking violently during rotation when extracting natural gas samples for detection, causing the equipment to vibrate and rub in the coal seam.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable coalbed methane detection and collection device, comprising a cylinder (1), wherein two hoses (2) are passed through and fixed to the top surface of the cylinder (1), and characterized in that: A bottom cylinder (3) is fixedly mounted on the bottom of the inner wall of the cylinder (1); a plurality of air inlet holes are provided on the outer wall of the bottom cylinder (3); an annular slide groove is provided on the top surface of the bottom cylinder (3); a rubber pad (4) is fixed to the bottom surface of the bottom cylinder (3); and a flow guide component (11) is provided in the middle of the top surface of the cylinder (1); The flow guide component (11) comprises a round shell (111), the round shell (111) is fixedly mounted in the middle of the top surface of the cylinder (1), the round shell (111) is located between the two hoses (2), a micro motor (112) is fixedly mounted on the top of the inner part of the round shell (111), a long rod (113) is passed through the top of the inner part of the cylinder (1) and is rotatably mounted, the top surface of the long rod (113) is fixedly connected to the bottom surface of the rotating shaft of the micro motor (112), one end of the long rod (113) away from the micro motor (112) is rotatably connected to the inner bottom end of the bottom cylinder (3), an arc fan (114) is fixed to the bottom of the outer wall of the long rod (113), a net cylinder (115) is welded to the inner wall of the bottom cylinder (3), the arc fan (114) is located in the middle of the inner part of the net cylinder (115), and an anti-blocking component (12) is arranged at the bottom of the outer wall of the long rod (113); The anti-blocking component (12) comprises a horizontal plate (121), the horizontal plate (121) being fixed on the circumferential surface of the long rod (113), the horizontal plate (121) being located above the arc fan (114), the bottom surface of the horizontal plate (121) being slidably connected to the inner wall of the annular sliding groove of the bottom cylinder (3), two vertical plates (122) being fixed to the bottom surface of the horizontal plate (121), a sponge block (123) being fixed to the bottom of a side of the vertical plates (122) away from each other, and the sides of the two sponge blocks (123) away from each other being in slidable contact with the inner wall of the net cylinder (115); A mixing device (5) is provided on the top surface of the horizontal plate (121), and an air filtering device (6) is provided on the top surface of the mixing device (5).

2. The adjustable coalbed methane detection and collection device according to claim 1, characterized in that: An air pump is fixed to one end of the two hoses (2) away from the cylinder (1), the arc fan (114) is provided with three blades, and the sides of the two sponge blocks (123) away from each other are provided with a rough surface.

3. The adjustable coalbed methane detection and collection device according to claim 2 is characterized in that: The mixing device (5) comprises an annular plate 1 (51), a rotary blade fan (52), an annular plate 2 (53) and a long hole plate (54), wherein the annular plate 1 (51) is fixed to the top surface of the horizontal plate (121), the rotary blade fan (52) is fixed to the top surface of the annular plate 1 (51), the annular plate 2 (53) is fixed to the top of the inner wall of the cylinder (1), and the long hole plate (54) is fixed to an end of the rotary blade fan (52) away from the annular plate 1 (51), and the bottom surface of the long hole plate (54) is in sliding contact with the top surface of the annular plate 2 (53).

4. The adjustable coalbed methane detection and collection device according to claim 3 is characterized in that: The mixing device (5) further comprises two connecting columns (55), two inclined plates (56) and two cotton cloth pieces (57), wherein the two connecting columns (55) are fixed to the two sides of the top surface of the long hole plate (54), the two inclined plates (56) are respectively fixed to the outer walls of the two connecting columns (55), and the two cotton cloth pieces (57) are respectively fixed to the bottom surfaces of the two inclined plates (56).

5. The adjustable coalbed methane detection and collection device according to claim 4 is characterized in that: The long hole plate (54) is sleeved on the outer wall of the long rod (113), and the bottom surfaces of the two cotton cloth pieces (57) are in sliding contact with the top surface of the second annular plate (53).

6. The adjustable coalbed methane detection and collection device according to claim 5, characterized in that: The air filtering device (6) comprises two short rods (61), an annular shell (62), a honeycomb cotton block (63) and a filter screen (64), wherein the two short rods (61) are fixed on both sides of the top surface of the long hole plate (54), and the two short rods (61) are respectively located on the side of the two connecting columns (55) that are away from each other, the annular shell (62) is fixed on the top surface of the two short rods (61), the honeycomb cotton block (63) is fixedly mounted on the inner top of the annular shell (62), and the filter screen (64) is fixed on the top of the inner wall of the annular shell (62).

7. The adjustable coalbed methane detection and collection device according to claim 6 is characterized in that: The air filtering device (6) further comprises two thin rods (65), two U-shaped plates (66) and two rubber rollers (67); the two thin rods (65) are respectively fixedly connected to the outer walls of the two short rods (61); the two U-shaped plates (66) are respectively fixed to ends of the two thin rods (65) that are away from each other; and the two rubber rollers (67) are respectively rotatably mounted on the inner walls of the two U-shaped plates (66).

8. The adjustable coalbed methane detection and collection device according to claim 7, characterized in that: The honeycomb cotton block (63) is sleeved on the outer wall of the long rod (113), the filter screen (64) is sleeved on the outer wall of the long rod (113), the filter screen (64) is located above the honeycomb cotton block (63), and the outer walls of the two rubber rollers (67) are in rotational contact with the inner wall of the cylinder (1).

9. A collection method of an adjustable coalbed methane detection and collection device, using the adjustable coalbed methane detection and collection device according to claim 8, characterized in that: The following steps are involved: S1. An operator places the cylinder (1) into a well, and a hose (2) extracts gas from the cylinder (1). The cylinder (1) extracts gas from a bottom cylinder (3). The bottom cylinder (3) extracts natural gas from the coal seam through an air inlet for testing. S2, the mesh cylinder (115) blocks the coal ash in the coal seam from entering the bottom cylinder (3), the arc fan (114) rotates to fan away the coal ash, the rotation speed of the rotating shaft of the micro motor (112) is increased, the rotation speed of the long rod (113) is accelerated, and the long rod (113) drives the arc fan (114) to rotate faster; S3, the vertical plate (122) drives the sponge block (123) to rotate forward, and the rough surface of the sponge block (123) slides on the wall surface of the net cylinder (115); S4. During the forward rotation of the rotary blade fan (52), the rotary blade fan (52) rotates to stir the gas in the cylinder (1); S5. During the forward rotation of the cotton cloth block (57), the cotton cloth block (57) cleans the surface of the second annular plate (53); S6, the natural gas with a small amount of coal ash comes into contact with the honeycomb cotton block (63), the pores of the honeycomb cotton block (63) block the small amount of coal ash, and the honeycomb cotton block (63) discharges the filtered natural gas through the filter screen (64); S7, the rubber roller (67) rolls on the wall surface of the cylinder (1), and under the action of friction, the long hole plate (54) will not vibrate violently when rotating.

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