Gas pumping and discharging treatment device for gas power generation

Abstract

The invention relates to the technical field of gas power generation and gas conveying, in particular to a gas pumping and discharging treatment device for gas power generation, which comprises a gas inlet pipe and a gas outlet pipe, the gas inlet pipe is positioned above the gas outlet pipe, the gas inlet pipe and the gas outlet pipe are connected through a pipe group, a filter head is coaxially mounted on the inner side of the pipe group, and the filter head is breathable. The upper end of the filter head is conical, a gap is formed between the outer ring surface of the filter head and the inner wall of the pipe group, and an impurity storage structure for collecting impurities is mounted between the lower end of the filter head and the inner wall of the pipe group. Impurities can be driven by gas to make contact with the filter head, the gas penetrates through the filter head, the filter head blocks the impurities on the upper side, the filtered gas is discharged into the power generation device through the gas outlet pipe, and due to the fact that the filter head is in a conical shape, the impurities blocked by the filter head move towards the outer ring side of the filter head under blowing of airflow; and the impurities are moved into the impurity storage structure to be stored, so that the filter head can filter the impurities in the gas for a long time.

Description

Technical Field

[0001] The present invention relates to the technical field of gas power generation and gas transportation, and in particular to a gas extraction and treatment device for gas power generation. Background Art

[0002] Air-exhaust gas safe power generation is a technology that discharges underground coal mine gas (mainly methane) through a ventilation system and converts it into electrical energy. It has the triple benefits of safe production, resource utilization and environmental protection. The underground gas is extracted to the ground through the air-exhaust system for power generation.

[0003] Chinese patent CN111878155A discloses a coal mine low-concentration gas power generation device, comprising: a component group and a control group, wherein the component group comprises at least two boreholes, an extraction branch pipe, an extraction main pipe, an electric-controlled throttle valve, an air valve, a water ring vacuum pump, a conveying pipeline, a first combustion chamber, a generator, an exhaust pipe, an exhaust valve and a recycling device; the control group comprises a sensor part, a valve group part and a control part, wherein the control part receives the real-time electrical signal generated by the sensor part; a reference information group is provided in the control part, wherein the control part compares the information in the real-time electrical signal with the information in the reference information group to generate a first response level control program and a second response level control program, wherein the control part controls the response level control program according to the response level control program. The valve group is controlled to work; the invention solves the problem that toxic gases such as CO generated during gas combustion power generation cannot be treated and the gas generator cannot provide stable power supply. The above-mentioned related technologies have the following defects: when the gas for power generation is extracted and transported from underground, the transported gas will be mixed with impurity particles. In order to prevent the particles in the gas from affecting the power generation device, a filtering structure will be set in the transport pretreatment device to filter the impurities in the gas. It is shown that the existing filtering structure generally blocks impurities through filter discs or filter plates, but as the gas is transported, impurities will gradually accumulate at the filtering structure, affecting the subsequent gas transportation. For this reason, a gas extraction and treatment device for gas power generation is proposed, which can continuously filter impurities in the gas. Summary of the Invention

[0004] In order to ensure that impurities in gas are filtered and gas can be continuously and stably transported, the present invention provides a gas extraction and treatment device for gas power generation.

[0005] The present invention provides a gas extraction and treatment device for gas power generation, which adopts the following technical solution: it includes an air inlet pipe and an air outlet pipe, the air inlet pipe is located above the air outlet pipe, the air inlet pipe and the air outlet pipe are connected by a pipe group, a filter head is coaxially installed on the inside of the pipe group, the filter head is air-permeable, the upper end of the filter head is conical, and a gap is set between the outer annular surface of the filter head and the inner wall of the pipe group, and a storage structure for collecting impurities is installed between the lower end of the filter head and the inner wall of the pipe group.

[0006] The impurity storage structure is arranged in contact with the upper end of the air outlet pipe.

[0007] Optionally, the impurity storage structure includes a ring plate and a swivel, the swivel is coaxially contacted with the lower side of the ring plate, the ring plate is installed between the filter head and the tube group, and the bottom surface of the swivel is in contact with the upper end surface of the outlet pipe.

[0008] A collecting structure is installed on the outer side of the swivel, and the upper end of the collecting structure is connected to the lower end of the tube group.

[0009] The end surface of the ring plate is provided with a plurality of evenly distributed through holes, and the upper end surface of the rotating ring is provided with a plurality of evenly distributed transfer holes.

[0010] The distance between the transfer hole and the axis of the rotating ring is equal to the distance between the through hole and the axis of the rotating ring, and the lower end of the transfer hole is connected to the collecting structure.

[0011] Optionally, a shaft is rotatably connected to the axis of the filter head, and a plurality of evenly distributed spiral plates are installed at one end of the shaft located at the lower side of the filter head. The spiral plates are located inside the air outlet pipe, and the lower end of the shaft is rotatably connected to the inner wall of the air outlet pipe.

[0012] The shaft is located at the lower side of the filter head and is equipped with a transmission structure for driving the rotating ring to rotate.

[0013] Optionally, the collection structure includes a collecting tube and a reducer, the upper end of the reducer is smaller than the lower end of the reducer, the upper end of the reducer is fixedly sleeved on the upper end of the outlet pipe, the swivel is rotatably inserted into the inner ring surface of the upper end of the reducer, and the upper end of the reducer is connected to the lower end of the tube group.

[0014] The collecting cylinder is connected to the lower end of the reducer, and a movable collar is slidably sleeved on the outer surface of the lower end of the reducer. The lower end of the movable collar contacts the inner bottom wall of the collecting cylinder, and the movable collar is fixed to the outer surface of the outlet pipe.

[0015] The end surface of the reducer is provided with a plurality of evenly distributed bending holes that pass through from top to bottom. The lower ends of the bending holes are connected to the interior of the collecting cylinder. The distance between the axis of the upper end of the bending holes and the axis of the rotating ring is equal to the distance between the through holes and the axis of the rotating ring.

[0016] Optionally, the conical inner ring surface of the filter head is fixed with multiple force-bearing plates arranged in multiple layers, and the multiple force-bearing plates arranged in each layer are evenly distributed along the axis of the filter head. A knocking ball is provided inside the filter head at each layer of force-bearing plates, and the knocking ball is connected to the circumferential side of the shaft rod by a soft rope.

[0017] Optionally, the number of the bending holes is equal to the number of the through holes, and the number of the bending holes is equal to one third of the number of the transfer holes.

[0018] The through hole is staggered with the adjacent transfer hole.

[0019] Optionally, an air ring is coaxially arranged on the outside of the air intake pipe, and a one-way vacuum pump is installed in connection with the air ring. The other end of the one-way vacuum pump passes through the outer surface of the tube group. A return air exhaust pipe is inserted and inserted between each two adjacent through holes on the upper surface of the ring plate. The upper end of the return air exhaust pipe passes through the inner wall of the air intake pipe and is connected to the air ring and installed.

[0020] The distance between the axis of one end of the reflux exhaust pipe connected to the ring plate and the axis of the rotating ring is equal to the distance between the through hole and the ring plate axis. The number of reflux exhaust pipes is equal to one third of the number of transfer holes. The transfer holes are located between the through hole and the upper end of the bending hole.

[0021] Optionally, the transmission structure includes an end cover and a shaft cylinder, the shaft cylinder is rotatably contacted and arranged on the lower side of the end cover, the end cover is rotatably sleeved on the outer surface of the shaft, and the end cover is connected to the inner wall of the filter head through a connecting structure.

[0022] The shaft cylinder is fixedly sleeved on the outer surface of the shaft rod, and a sleeve plate is installed through the circumferential side of the shaft cylinder. The extension line of the sleeve plate coincides with the axis of the shaft rod. A shift plate is slidably inserted into the sleeve plate, and a plurality of evenly distributed blocks are fixed on the inner ring surface of the rotating ring. The number of blocks is equal to the number of transfer holes, and the blocks and the shift plate are in the same plane.

[0023] The shift plate is threadedly connected to a reciprocating screw near one end of the shaft, and the sleeve plate is rotatably sleeved on the outer surface of the reciprocating screw near one end of the shaft. The reciprocating screw is located inside the shaft tube and is coaxially fixed with a bevel gear at one end. A bevel gear ring is meshed with the upper side of the bevel gear, and the bevel gear ring is coaxial with the shaft and is installed on the bottom surface of the end cover.

[0024] A triangular block is provided in contact with the inner ring surface of the rotating ring. The triangular block is located on the lower side of the stopper. The upper end of the triangular block is pointed. The bottom surface of the triangular block is elastically connected to the inner wall of the outlet pipe. The maximum width of the triangular block is greater than the distance between two adjacent stoppers. The tip of the triangular block is located between the two adjacent stoppers.

[0025] Optionally, the connecting structure includes an air guide cylinder and a vertical rod. The upper end of the air guide cylinder is coaxially fixed and inserted into the lower end of the filter head. The air guide cylinder is rotatably sleeved on the outer surface of the shaft rod. The two ends of the vertical rod are respectively fixed to the end cover and the air guide cylinder. The air guide cylinder is eccentrically arranged with the shaft rod, and the lower end of the air guide cylinder is within the range of the spiral plate.

[0026] Optionally, the upper ends of the through holes are arranged in an arc shape, the upper ends of two adjacent through holes are arranged in an arc-shaped recessed shape that contacts each other, and the transfer hole is arranged at an equal distance from the adjacent through holes and the bent hole.

[0027] In summary, the present invention has the following beneficial technical effects:

[0028] 1. The present invention provides components such as a filter head, a storage structure, and a pipe group. Gas extracted from underground is filled into the pipe group through the air inlet pipe. The gas drives the impurities to contact the filter head. The gas passes through the filter head, which blocks the impurities on the upper side. The filtered gas is discharged into the power generation device through the outlet pipe. Since the filter head is conical, the impurities blocked by the filter head move toward the outer ring side of the filter head under the blowing of the air flow, so that the impurities are moved to the storage structure for storage, so that the filter head can filter the impurities in the gas for a long time.

[0029] 2. The present invention provides components such as a ring plate, a rotating ring, a through hole, a transfer hole and a bent hole. After the airflow passes through the filter head, the spiral plate drives the shaft rod to rotate. During the rotation of the shaft rod, the bevel gear is driven to mesh with the bevel gear ring through the shaft tube, driving the reciprocating screw rod to rotate relative to the shift plate. The shift plate is engaged with the rotating reciprocating screw rod and slides back and forth in the sleeve plate. When the shift plate moves to the outermost side of the sleeve plate, the shift plate can shift the block to drive the rotating ring to rotate once. When the rotating ring rotates, the transfer hole connected to the through hole and the transfer hole is continuously changed. Impurities slipping from the filter head are continuously moved to the connected transfer hole through the through hole opened on the conversion end face, and then the transfer hole containing impurities is connected with the bent hole during the rotation of the rotating ring, so that the impurities in the transfer hole fall into the collection cylinder through the connected bent hole. Therefore, during the continuous rotation of the rotating ring, the impurities filtered by the filter head are moved to the collection cylinder, so that the filter head can continuously filter the gas.

[0030] 3. The present invention sets components such as an air ring, a one-way vacuum pump and a reflux exhaust pipe, and drives the transfer hole to be connected with the through hole, the reflux exhaust pipe and the bent hole in sequence during the rotation of the rotating ring. After the transfer hole and the through hole are misaligned, the transfer hole storing impurities is first connected with the reflux exhaust pipe, so that the one-way vacuum pump exhausts the transfer hole storing impurities through the reflux exhaust pipe, and draws the gas remaining between the impurities in the transfer hole back into the air inlet pipe, preventing the residual gas inside from leaking into the collection tube through the bent hole when the transfer hole is connected to the bent hole.

[0031] 4. The present invention provides components such as a force-bearing plate, a soft rope and a knocking ball. When the shaft rotates, the knocking ball is driven to rotate by the soft rope, so that the knocking ball moves away from the shaft under centrifugal force. The knocking ball collides and knocks against the force-bearing plate as the shaft rotates, causing the filter head to vibrate and impurities on the upper side of the filter head to tend to fall off downward, so that the impurities will not adhere to the upper side of the filter head, thereby increasing the gas flowability of the filter head. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0033] Figure 2 2 is a schematic diagram of the internal structure of the tube group according to an embodiment of the present invention;

[0034] Figure 32. It is a structural diagram of the distribution of bending holes and transfer holes in an embodiment of the present invention;

[0035] Figure 4 This is a schematic structural diagram of the connection between the collecting cylinder and the movable collar in an embodiment of the present invention;

[0036] Figure 5 This is a schematic structural diagram of the connection between the filter head and the stress-bearing plate in an embodiment of the present invention;

[0037] Figure 6 It is a schematic front view of part of the structure in an embodiment of the present invention;

[0038] Figure 7 This is a schematic structural diagram of the connection between the sleeve plate and the dial plate in an embodiment of the present invention;

[0039] Figure 8 In the embodiment of the present invention Figure 7 A magnified schematic diagram of the structure in the middle.

[0040] Figure numerals: 1. air inlet pipe; 2. air outlet pipe; 3. filter head; 31. force plate; 32. knocking ball; 33. soft rope; 4. pipe group; 5. storage structure; 51. ring plate; 52. swivel; 53. collecting structure; 531. collecting cylinder; 532. reducer; 533. movable sleeve; 534. bending hole; 54. through hole; 55. transfer hole; 56. shaft; 57. spiral plate; 58. transmission structure; 581. end cover; 582. shaft cylinder; 583. connecting structure; 5831. air guide cylinder; 5832. vertical pole; 584. sleeve; 585. dial plate; 586. stop block; 587. reciprocating screw; 588. triangular block; 589. bevel gear; 5810. bevel gear ring; 6. air ring; 7. one-way vacuum pump; 8. reflux exhaust pipe. DETAILED DESCRIPTION

[0041] The following is combined with Figures 1-8 The present invention is described in further detail.

[0042] The embodiment of the present invention discloses a gas extraction and treatment device for gas power generation. Figures 1-8 As shown, it includes an air inlet pipe 1 and an air outlet pipe 2. The air inlet pipe 1 is located above the air outlet pipe 2. The air inlet pipe 1 and the air outlet pipe 2 are connected by a tube group 4. A filter head 3 is coaxially installed on the inner side of the tube group 4. The surface of the filter head 3 has pores for allowing gas to pass through. At the same time, the filter head 3 can block impurities entrained in the gas. The filter head 3 is breathable, and the upper end of the filter head 3 is conical. There is a gap between the outer ring surface of the filter head 3 and the inner wall of the tube group 4. The conical filter head 3 makes it difficult for impurities to accumulate on the upper side of the filter head 3, so that the impurities blocked by the filter head 3 move to the outer ring side of the filter head 3 by sliding on the conical surface of the filter head 3.

[0043] A shaft 56 is rotatably connected to the axis of the filter head 3. A plurality of evenly distributed spiral plates 57 are installed at one end of the shaft 56 located at the lower side of the filter head 3. The spiral plates 57 are located inside the outlet pipe 2. The lower end of the shaft 56 is rotatably connected to the inner wall of the outlet pipe 2. The gas flow from the filter head 3 impacts the spiral plates 57, driving the shaft 56 to rotate.

[0044] A plurality of force-bearing plates 31 arranged in multiple layers are fixed to the conical inner ring surface of the filter head 3. The multiple force-bearing plates 31 arranged in each layer are evenly distributed along the axis of the filter head 3. A knocking ball 32 is provided inside the filter head 3 at each layer of force-bearing plates 31. The knocking ball 32 is connected to the circumferential side of the shaft 56 through a soft rope 33. When the shaft 56 rotates, the knocking ball 32 is driven to rotate by the soft rope 33. During the rotation of the knocking ball 32, it is in a suspended rotation state due to centrifugal force. The knocking ball 32 knocks the force-bearing plate 31 while rotating in the air following the shaft 56, causing the filter head 3 to vibrate. During the vibration of the filter head 3, the impurities on the upper side are assisted to move toward the outer ring side of the filter head 3.

[0045] A storage structure 5 for collecting impurities is installed between the lower end of the filter head 3 and the inner wall of the tube group 4 . The impurities blocked on the upper side of the filter head 3 tend to move into the storage structure 5 .

[0046] The impurity storage structure 5 is arranged in contact with the upper end of the air outlet pipe 2 .

[0047] The impurity storage structure 5 includes a ring plate 51 and a swivel 52. The swivel 52 is coaxially arranged on the lower side of the ring plate 51. The ring plate 51 is installed between the filter head 3 and the tube group 4. The bottom surface of the swivel 52 is in contact with the upper end surface of the outlet pipe 2.

[0048] The shaft 56 is located at the lower side of the filter head 3 and is equipped with a transmission structure 58 for driving the rotating ring 52 to rotate.

[0049] A collecting structure 53 is installed on the outer side of the swivel 52 , and the upper end of the collecting structure 53 is connected to the lower end of the tube group 4 .

[0050] The end surface of the ring plate 51 is provided with a plurality of evenly distributed through holes 54. Impurities moving from the upper side of the filter head 3 gradually fall into the through holes 54 under gravity. The upper end surface of the rotating ring 52 is provided with a plurality of evenly distributed transfer holes 55. Then the impurities pass through the through holes 54 and fall into the transfer holes 55 connected thereto.

[0051] The axial distance between the transfer hole 55 and the rotating ring 52 is equal to the axial distance between the through hole 54 and the rotating ring 52. The lower end of the transfer hole 55 is connected to the collecting structure 53. Impurities falling into the transfer hole 55 can fall into the collecting structure 53 as the rotating ring 52 rotates, so that the impurities will not accumulate on the outer ring side of the filter head 3, so that the filter head 3 can filter the impurities in the gas that passes through it.

[0052] The collecting structure 53 includes a collecting tube 531 and a reducing tube 532. The upper end of the reducing tube 532 is smaller than the lower end of the reducing tube 532. The upper end of the reducing tube 532 is fixedly sleeved on the upper end of the air outlet pipe 2. The swivel 52 is rotatably inserted into the inner annular surface of the upper end of the reducing tube 532. The upper end of the reducing tube 532 is connected to the lower end of the tube group 4.

[0053] The collecting tube 531 is connected to the lower end of the reducing tube 532. The outer surface of the lower end of the reducing tube 532 is slidably sleeved with a movable ring 533. The lower end of the movable ring 533 contacts the inner bottom wall of the collecting tube 531. The movable ring 533 is fixed to the outer surface of the outlet pipe 2.

[0054] The end face of the reducer 532 is provided with a plurality of evenly distributed bending holes 534 that pass through from top to bottom. The lower end of the bending hole 534 is connected to the interior of the collecting tube 531. The distance between the axis of the upper end of the bending hole 534 and the axis of the rotating ring 52 is equal to the distance between the axis of the through hole 54 and the axis of the rotating ring 52. The impurities in the transfer hole 55 fall into the collecting tube 531 through the bending hole 534. Pushing the movable ring 533 upwards can open the collecting tube 531, and the impurities in the collecting tube 531 can be taken out.

[0055] The number of the bending holes 534 is equal to the number of the through holes 54 , and the number of the bending holes 534 is equal to one third of the number of the transfer holes 55 . The through holes 54 and the adjacent transfer holes 55 are staggered.

[0056] An air ring 6 is coaxially arranged on the outside of the intake pipe 1, and a one-way vacuum pump 7 is installed in communication with the air ring 6. The one-way vacuum pump 7 is installed with a one-way valve. The one-way vacuum pump 7 allows the air flow to flow into the intake pipe 1 in one direction. The other end of the one-way vacuum pump 7 passes through the outer surface of the tube group 4. A reflux exhaust pipe 8 is inserted and connected to the upper surface of the ring plate 51 and between each two adjacent through holes 54. The upper end of the reflux exhaust pipe 8 passes through the inner wall of the intake pipe 1 and is connected to the air ring 6 and installed.

[0057] The distance between the axis of one end of the reflux exhaust pipe 8 connected to the ring plate 51 and the axis of the rotating ring 52 is equal to the distance between the axis of the through hole 54 and the ring plate 51. The number of the reflux exhaust pipes 8 is equal to one-third of the number of the transfer holes 55. The transfer holes 55 are located between the through hole 54 and the upper end of the bent hole 534. When the rotating ring 52 rotates, the transfer holes 55 are driven to communicate with the through hole 54, the reflux exhaust pipe 8 and the bent hole 534 in sequence. The impurities on the upper side of the filter head 3 fall into the transfer holes 55 connected thereto through the through holes 54, and then the transfer holes 55 follow the rotation of the rotating ring 52 and first flow with the reflux exhaust pipe 8. The one-way vacuum pump 7 draws the gas in the impurities in the transfer holes 55 connected thereto back into the intake pipe 1 through the reflux exhaust pipe 8, so that the ring plate 51 continues to rotate, driving the vacuumed transfer holes 55 to communicate with the bent hole 534, so that the impurities in the vacuumed transfer holes 55 fall into the collecting tube 531 through the bent hole 534, preventing the gas from leaking to the outside.

[0058] The upper ends of the through holes 54 are arranged in an arc shape, and the upper ends of two adjacent through holes 54 are arranged in an arc-shaped concave shape that contacts each other. The transfer hole 55 is arranged at an equal distance from the adjacent through holes 54 and the bending hole 534. The through holes 54 with an arc-shaped concave shape at the upper ends prevent impurities from accumulating on the upper side of the ring plate 51, so that impurities on the upper side of the ring plate 51 can all fall into the through holes 54.

[0059] The transmission structure 58 includes an end cap 581 and a shaft cylinder 582. The shaft cylinder 582 is rotatably connected to the lower side of the end cap 581. The end cap 581 is rotatably sleeved on the outer surface of the shaft rod 56. The end cap 581 is connected to the inner wall of the filter head 3 through a connecting structure 583. The connecting structure 583 includes an air guide cylinder 5831 and a vertical rod 5832. The upper end of the air guide cylinder 5831 is coaxially fixed and inserted into the lower end of the filter head 3. The air guide cylinder 5831 is rotatably sleeved on the outer surface of the shaft rod 56. The two ends of the vertical rod 5832 are respectively fixed to the end cover 581 and the gas cylinder 5831. The gas cylinder 5831 is eccentrically arranged with respect to the shaft 56. The lower end of the gas cylinder 5831 is within the range of the spiral plate 57. The spiral plate 57 is spirally arranged. The gas passing through the filter head 3 passes through the gas cylinder 5831. The airflow flowing out from the lower end of the gas cylinder 5831 impacts the spiral plate 57, so that the airflow can stably pass through the impact spiral plate 57 to drive the shaft 56 to rotate.

[0060] The shaft cylinder 582 is fixedly sleeved on the outer surface of the shaft rod 56, and a sleeve plate 584 is installed through the circumferential side of the shaft cylinder 582. The extension line of the sleeve plate 584 coincides with the axis of the shaft rod 56. A shift plate 585 is slidably inserted inside the sleeve plate 584. A plurality of evenly distributed stoppers 586 are fixed on the inner ring surface of the swivel 52. The number of stoppers 586 is equal to the number of transfer holes 55, and the stoppers 586 and the shift plates 585 are in the same plane.

[0061] The reciprocating screw 587 is threadedly inserted into the dial plate 585 near one end of the shaft 56, and the sleeve plate 584 is rotatably sleeved on the outer surface of the reciprocating screw 587 near one end of the shaft 56. The reciprocating screw 587 is located inside the shaft cylinder 582 and is coaxially fixed with a bevel gear 589 at one end. A bevel gear ring 5810 is engaged on the upper side of the bevel gear 589. The bevel gear ring 5810 is coaxial with the shaft 56 and is installed on the bottom surface of the end cover 581. When the shaft 56 rotates, the shaft cylinder 582 is driven to rotate, and the shaft cylinder 582 drives the sleeve plate 584 and the dial plate 585 to rotate synchronously. When the sleeve plate 584 rotates around the axis of the shaft 56 During rotation, the bevel gear 589 is driven to engage with the bottom surface of the bevel gear ring 5810, driving the reciprocating screw 587 to rotate relative to the selector plate 585. The selector plate 585 is engaged with the rotating reciprocating screw 587, driving the selector plate 585 to move back and forth in the sleeve plate 584. When the selector plate 585 moves to the outermost position of the sleeve plate 584, the selector plate 585 can push the stopper 586 while following the rotation of the shaft 56, driving the ring plate 51 to rotate. When the ring plate 51 rotates the angle between the two adjacent through holes 54, the selector plate 585 moves into the shaft 56, which can drive the selector plate 585 to disengage from the stopper 586.

[0062] The inner ring surface of the swivel 52 is provided with a triangular block 588, which is located on the lower side of the stopper 586. The upper end of the triangular block 588 is pointed. The bottom surface of the triangular block 588 is elastically connected to the inner wall of the outlet pipe 2. The triangular block 588 is elastically connected to the outlet pipe 2 through an elastic telescopic rod, which has a tendency to push the triangular block 588 upward to move. The elastic connection between the triangular block 588 and the outlet pipe 2 just supports the gravity of the triangular block 588, so that when the dial plate 585 applies a thrust to the stopper 586, the swivel 52 can be pushed to rotate. During the rotation of the swivel 52, The block 586 pushes the triangular block 588 to move elastically downward. The maximum width of the triangular block 588 is greater than the distance between two adjacent blocks 586. The tip of the triangular block 588 is located between the two adjacent blocks 586. After the dial plate 585 is disengaged from the block 586, the elastic connection between the triangular block 588 and the air outlet pipe 2 moves upward by pushing the block 586, thereby limiting the angle at which the swivel 52 stops. When the swivel 52 stops, different through holes 54, bending holes 534 and reflux exhaust pipe 8 are respectively connected to the corresponding through holes 54.

[0063] The working principle is as follows: the gas extracted from the underground is filled into the pipe group 4 through the air inlet pipe 1. When the gas comes into contact with the filter head 3 with impurities, the gas passes through the filter head 3, and the filter head 3 blocks the impurities on the upper side. The filtered gas is discharged from the air outlet pipe 2 into the power generation device. Since the filter head 3 is conical, the impurities blocked by the filter head 3 move toward the outer ring side of the filter head 3 under the blowing of the airflow, so that the impurities are moved to the storage structure 5 for storage, so that the impurities will not accumulate on the upper side of the filter head 3, so that the filter head 3 can filter the impurities in the gas for a long time.

[0064] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gas extraction and treatment device for gas power generation, comprising an air inlet pipe (1) and an air outlet pipe (2), characterized in that: The air inlet pipe (1) is located above the air outlet pipe (2), and the air inlet pipe (1) and the air outlet pipe (2) are connected via a pipe group (4). A filter head (3) is coaxially mounted on the inner side of the pipe group (4). The filter head (3) is air-permeable, the upper end of the filter head (3) is conical, and a gap is formed between the outer annular surface of the filter head (3) and the inner wall of the pipe group (4). A storage structure (5) for collecting impurities is mounted between the lower end of the filter head (3) and the inner wall of the pipe group (4); The impurity storage structure (5) is arranged in contact with the upper end of the air outlet pipe (2).

2. A gas extraction and treatment device for gas power generation according to claim 1, characterized in that: The impurity storage structure (5) comprises a ring plate (51) and a rotating ring (52), the rotating ring (52) being coaxially arranged on the lower side of the ring plate (51), the ring plate (51) being installed between the filter head (3) and the tube group (4), and the bottom surface of the rotating ring (52) being arranged in contact with the upper end surface of the outlet pipe (2); A collecting structure (53) is installed on the outer side of the rotating ring (52), and the upper end of the collecting structure (53) is connected to the lower end of the tube group (4); The end surface of the ring plate (51) is provided with a plurality of evenly distributed through holes (54), and the upper end surface of the rotating ring (52) is provided with a plurality of evenly distributed transfer holes (55); The axial distance between the transfer hole (55) and the rotating ring (52) is equal to the axial distance between the through hole (54) and the rotating ring (52), and the lower end of the transfer hole (55) is connected to the collecting structure (53).

3. The gas extraction and treatment device for gas power generation according to claim 2, characterized in that: A shaft (56) is rotatably connected to the axis of the filter head (3), and a plurality of evenly distributed spiral plates (57) are installed at one end of the shaft (56) located on the lower side of the filter head (3). The spiral plates (57) are located inside the outlet pipe (2), and the lower end of the shaft (56) is rotatably connected to the inner wall of the outlet pipe (2); The shaft (56) is located on the lower side of the filter head (3) and is equipped with a transmission structure (58) for driving the rotating ring (52) to rotate.

4. The gas extraction and treatment device for gas power generation according to claim 3, characterized in that: The collecting structure (53) comprises a collecting cylinder (531) and a reducing tube (532), the upper end of the reducing tube (532) being smaller than the lower end of the reducing tube (532), the upper end of the reducing tube (532) being fixedly sleeved on the upper end of the air outlet pipe (2), the rotating ring (52) being rotatably inserted into the inner annular surface of the upper end of the reducing tube (532), and the upper end of the reducing tube (532) being connected to the lower end of the tube group (4); The collecting tube (531) is connected to the lower end of the reducing tube (532); a movable collar (533) is slidably sleeved on the outer surface of the lower end of the reducing tube (532); the lower end of the movable collar (533) contacts the inner bottom wall of the collecting tube (531); and the movable collar (533) is fixed to the outer surface of the air outlet pipe (2); The end surface of the reducer (532) is provided with a plurality of evenly distributed bending holes (534) that pass through from top to bottom. The lower ends of the bending holes (534) are connected to the interior of the collecting cylinder (531). The distance between the axis of the upper end of the bending hole (534) and the axis of the rotating ring (52) is equal to the distance between the axis of the through hole (54) and the axis of the rotating ring (52).

5. The gas extraction and treatment device for gas power generation according to claim 3, characterized in that: The conical inner ring surface of the filter head (3) is fixed with a plurality of force-bearing plates (31) arranged in multiple layers, and the plurality of force-bearing plates (31) arranged in each layer are evenly distributed along the axis of the filter head (3). A knocking ball (32) is arranged at each layer of the force-bearing plates (31) inside the filter head (3), and the knocking ball (32) is connected to the circumferential side surface of the shaft rod (56) through a soft rope (33).

6. The gas extraction and treatment device for gas power generation according to claim 4, characterized in that: The number of the bending holes (534) is equal to the number of the through holes (54), and the number of the bending holes (534) is equal to one third of the number of the transfer holes (55); The through hole (54) and the adjacent transfer hole (55) are arranged in a staggered manner.

7. The gas extraction and treatment device for gas power generation according to claim 6, characterized in that: An air ring (6) is coaxially arranged on the outside of the air inlet pipe (1), and a one-way vacuum pump (7) is connected and installed in the air ring (6). The other end of the one-way vacuum pump (7) penetrates the outer surface of the pipe group (4). A return air pumping pipe (8) is inserted and inserted into the upper surface of the ring plate (51) and between each two adjacent through holes (54). The upper end of the return air pumping pipe (8) penetrates the inner wall of the air inlet pipe (1) and is connected and installed in the air ring (6). The distance between the axis of one end of the return air extraction pipe (8) connected to the ring plate (51) and the axis of the rotating ring (52) is equal to the distance between the axis of the through hole (54) and the ring plate (51). The number of the return air extraction pipe (8) is equal to one third of the number of the transfer holes (55). The transfer holes (55) are located between the through hole (54) and the upper end of the bending hole (534).

8. The gas extraction and treatment device for gas power generation according to claim 7, characterized in that: The transmission structure (58) includes an end cover (581) and a shaft cylinder (582), wherein the shaft cylinder (582) is rotatably arranged on the lower side of the end cover (581), the end cover (581) is rotatably sleeved on the outer surface of the shaft (56), and the end cover (581) is connected to the inner wall of the filter head (3) via a connecting structure (583); The shaft cylinder (582) is fixedly sleeved on the outer surface of the shaft rod (56), and a sleeve plate (584) is installed on the circumferential side of the shaft cylinder (582). The extension line of the sleeve plate (584) coincides with the axis of the shaft rod (56). A shift plate (585) is slidably inserted into the sleeve plate (584). A plurality of evenly distributed stoppers (586) are fixed on the inner ring surface of the rotating ring (52). The number of the stoppers (586) is equal to the number of the transfer holes (55). The stoppers (586) and the shift plates (585) are in the same plane. The shift plate (585) is threadedly connected to a reciprocating screw (587) at one end close to the shaft (56), and the sleeve plate (584) is rotatably sleeved on the outer surface of the reciprocating screw (587) at one end close to the shaft (56). The reciprocating screw (587) is located inside the shaft cylinder (582) and is coaxially fixed with a bevel gear (589) at one end. The upper side of the bevel gear (589) is meshed with a bevel gear ring (5810). The bevel gear ring (5810) is coaxial with the shaft (56) and is installed on the bottom surface of the end cover (581). The inner ring surface of the rotating ring (52) is provided with a triangular block (588), the triangular block (588) is located on the lower side of the stop block (586), the upper end of the triangular block (588) is pointed, the bottom surface of the triangular block (588) is elastically connected to the inner wall of the outlet pipe (2), the maximum width of the triangular block (588) is greater than the distance between two adjacent stop blocks (586), and the tip of the triangular block (588) is located between the two adjacent stop blocks (586).

9. The gas extraction and treatment device for gas power generation according to claim 8, characterized in that: The connecting structure (583) comprises an air guide cylinder (5831) and a vertical rod (5832). The upper end of the air guide cylinder (5831) is coaxially fixedly inserted into the lower end of the filter head (3). The air guide cylinder (5831) is rotatably sleeved on the outer surface of the shaft (56). The two ends of the vertical rod (5832) are respectively fixed to the end cover (581) and the air guide cylinder (5831). The air guide cylinder (5831) is eccentrically arranged with respect to the shaft (56). The lower end of the air guide cylinder (5831) is within the range of the spiral plate (57).

10. The gas extraction and treatment device for gas power generation according to claim 8, characterized in that: The upper ends of the through holes (54) are arranged in an arc shape, and the upper ends of two adjacent through holes (54) are arranged in an arc-shaped concave shape that contacts each other. The transfer hole (55) is arranged at an equal distance from the adjacent through holes (54) and the bending hole (534).

Images