Efficient drainage gas recovery device

Abstract

The application relates to the technical field of natural gas recovery, in particular to an efficient drainage gas recovery device, which solves the problem that water in a natural gas well cannot be actively drained in the process of the existing natural gas recovery operation, the water easily penetrates into a pipeline, and the recovery depth of the natural gas cannot be adjusted according to the water level, and comprises a drainage and gas guide module, the drainage and gas guide module is composed of an isolation monitoring mechanism, a shunt drainage mechanism and a multi-channel air inlet mechanism, the bottom end of the shunt drainage mechanism is provided with the isolation monitoring mechanism, the surface of the isolation monitoring mechanism is provided with a plurality of circumferentially-arranged multi-channel air inlet mechanisms, and the shunt drainage mechanism comprises a shunt connecting cover. The natural gas is bidirectionally circulated and transported, the water in the natural gas well can be actively drained, the recovery efficiency is improved, the recovery depth of the natural gas can be correspondingly adjusted according to the water, and the water penetration is effectively avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of natural gas recovery, in particular to a high-efficiency water drainage and gas recovery device. BACKGROUND

[0002] Natural gas is also buried in the closed geological structure underground, some of which is stored in the same layer as crude oil, and some exists alone. For natural gas stored in the same layer as crude oil, it will be extracted together with crude oil, and the extraction method is very similar to that of crude oil. Natural gas has small density, small wellbore gas column pressure on the bottom, small viscosity, and small flow resistance in the formation and pipeline. In addition, due to the large expansion coefficient, the elastic energy is also large. However, because the pressure of the gas well is generally high, and natural gas is a flammable and explosive gas, the pressure-bearing capacity and sealing performance of the gas wellhead device are much higher than those of the oil wellhead device. In the extraction of natural gas, water in the natural gas well easily enters the pipeline, affecting the collection of natural gas, and if not treated in time, it can cause erosion and damage to the pipeline.

[0003] In the existing natural gas recovery operation process, the water in the natural gas well cannot be actively excluded, which easily causes the water to seep into the pipeline, and it is not convenient to adjust the recovery depth of natural gas according to the water level. Therefore, it does not meet the existing needs, and for this purpose, a high-efficiency water drainage and gas recovery device is proposed. SUMMARY

[0004] The purpose of the present application is to provide a high-efficiency water drainage and gas recovery device to solve the problem that in the existing natural gas recovery operation process, the water in the natural gas well cannot be actively excluded, which easily causes the water to seep into the pipeline, and it is not convenient to adjust the recovery depth of natural gas according to the water level.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a high-efficiency water drainage and gas recovery device, comprising a water drainage and gas guide module, the water drainage and gas guide module is composed of an isolation monitoring mechanism, a shunt water drainage mechanism and a multi-channel gas inlet mechanism, the bottom end of the shunt water drainage mechanism is provided with an isolation monitoring mechanism, the surface of the isolation monitoring mechanism is provided with a plurality of circumferentially arranged multi-channel gas inlet mechanisms, the shunt water drainage mechanism comprises a shunt connecting cover, the bottom end of the shunt connecting cover is provided with a plurality of water drainage units, the outer side of the bottom end of the plurality of water drainage units is provided with a positioning ring, and the outer side of the positioning ring is provided with a sealing ring.

[0006] The multi-channel air inlet mechanism comprises a multi-channel air inlet strip, one side of the multi-channel air inlet strip is provided with a mounting pressing strip, a plurality of blocking sliding sheets are slidably connected between the multi-channel air inlet strip and the mounting pressing strip, the inner side of the mounting pressing strip is provided with a plurality of air inlet holes, the one side of the mounting pressing strip is provided with a plurality of first air guide holes, the one side of the blocking sliding sheet is provided with a second air guide hole, the bottom end of the blocking sliding sheet is fixedly provided with two driven elastic tabs, and the two adjacent driven elastic tabs are symmetrically installed with respect to the blocking sliding sheet.

[0007] Preferably, the drainage unit comprises an air guide elbow, the inner side of the bottom end of the air guide elbow is slidably connected with a blocking sheet, the lower end surface of the blocking sheet is provided with a supporting spring, and the inner side of the supporting spring is provided with a guide elbow rod.

[0008] Preferably, the isolation monitoring mechanism comprises an isolation sleeve, the bottom end of the isolation sleeve is fixedly provided with a sealing seat, the inner side of the bottom end of the sealing seat is fixedly provided with an electricity connection box, the inner side of the upper end of the sealing seat is fixedly provided with a sealing separation disc, the middle part of the lower end surface of the sealing separation disc is fixedly provided with a transmission motor, the middle part of the sealing separation disc is rotatably connected with a transmission shaft, the upper end surface of the sealing separation disc is fixedly provided with a liquid level meter on one side of the transmission shaft, and the outer side of the transmission shaft is provided with a reciprocating stirring unit.

[0009] Preferably, the reciprocating stirring unit comprises a transmission disc, a plurality of conical mounting heads are fixedly arranged on the outer side of the transmission disc, a driving elastic tab is fixedly arranged on the two sides of each conical mounting head, the transmission shaft is threadedly connected with the transmission disc, the plurality of conical mounting heads are circumferentially arranged with respect to the axis of the transmission shaft, and two adjacent driving elastic tabs are symmetrically arranged with respect to the conical mounting head, and one end of each conical mounting head is inserted into the adjacent two multi-channel air inlet strips.

[0010] Preferably, the upper end of the drainage air guide module is provided with a circulating conveying mechanism, the circulating conveying mechanism comprises a plurality of bidirectional conveying pipelines, one end of one of the bidirectional conveying pipelines is provided with a shunt pipeline, the one end of the shunt pipeline is fixedly provided with a booster pump, the other end of the shunt pipeline is fixedly provided with a water-gas separator, the bidirectional conveying pipeline is composed of an exhaust splicing pipe, an air injection splicing pipe and a pipe body support frame, the inner side of the exhaust splicing pipe is provided with the air injection splicing pipe, and the upper ends of the exhaust splicing pipe and the air injection splicing pipe are fixedly connected through the pipe body support frame.

[0011] Preferably, the circulating conveying mechanism and the drainage gas guide module are inserted into the inside of the natural gas well of the rock stratum, a drainage gap is formed between the drainage gas guide module and the inner wall of the natural gas well, a plurality of the bidirectional conveying pipelines are arranged in a linear manner, two adjacent exhaust splicing pipes and gas injection splicing pipes are connected through threads, the output end of the booster pump is connected with the gas injection splicing pipe, and the input ends of the booster pump and the water-gas separator are connected with the exhaust splicing pipe through the shunt pipeline.

[0012] Preferably, the upper end of the shunt connecting cover is connected with the exhaust splicing pipe through threads, the upper ends of a plurality of the gas guide elbows penetrate through the positioning ring and the isolation sleeve and are fixedly connected with the shunt connecting cover, and the exhaust splicing pipe and the plurality of gas guide elbows are connected through the shunt connecting cover.

[0013] Preferably, the positioning ring is fixedly connected with the isolation sleeve, the upper end of the isolation sleeve is connected with the gas injection splicing pipe through threads, the bottom end of the guide elbow is fixedly connected with the positioning ring, and the upper end of the guide elbow is slidably connected with the blocking sheet through the supporting spring.

[0014] Preferably, the inside of the power connection box is provided with a main board, the liquid level meter and the transmission motor are electrically connected with the main board, the output end of the transmission motor penetrates through the sealing partition disc and is connected with the transmission shaft through a shaft coupling, the upper end of the transmission shaft penetrates through the middle part of the transmission disc and is inserted into the inside of the bottom end of the shunt connecting cover, and the reciprocating shifting unit linearly reciprocates along the axis of the transmission shaft.

[0015] Preferably, the isolation sleeve is fixedly connected with a plurality of mounting pressing strips, the air inlet hole is coaxial with the first gas guide hole, the multi-channel air inlet strip is fixedly connected with the mounting pressing strip, one side of the multi-channel air inlet strip is provided with a plurality of sliding grooves, the blocking sliding sheet is arranged on the inside of the sliding groove, and the diameters of the air inlet hole, the first gas guide hole and the second gas guide hole are consistent.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1、The number of bidirectional conveying pipelines is determined according to the recovery depth, so that a plurality of bidirectional conveying pipelines are spliced with each other and connected with the shunt pipeline through the booster pump and the water-gas separator, when the drainage gas guide module is lowered in the natural gas well, the transmission motor drives the reciprocating shifting unit to move upward through the transmission shaft, and the transmission disc synchronously drives a plurality of conical mounting heads to move upward, so that the driven elastic shifting pieces on both sides of the blocking sliding sheet are shifted by the active elastic shifting piece, the blocking sliding sheet slides between the multi-channel air inlet strip and the mounting pressing strip, and the air inlet hole, the first gas guide hole and the second gas guide hole are coaxial, so that the multi-channel air inlet mechanism continuously guides and recovers the natural gas;

[0018] 2、The present application will be through the shunt pipeline to the exhaust splicing pipe inside the natural gas pump, convenient for the extraction of natural gas and through the injection splicing pipe to the shunt connecting cover, and then the shunt connecting cover through the multiple air guide elbow continuously to the drainage gap between the isolation sleeve and the natural gas well, and then effectively reduce the water level in the natural gas well, avoid the water through the air inlet hole, the first air guide hole and the second air guide hole into the inside of the isolation sleeve, affect the recovery operation of natural gas;

[0019] 3、The present application can conveniently control the opening and closing state of the sealing slide through the reciprocating unit, adjust the closing number of the sealing slide, satisfy the isolation effect of the multi-channel air inlet strip on water body of different depths, and guide the air through the sealing slide in the remaining open state, maintain the continuous recovery of natural gas, separate the water and gas through the water-gas separator, adjust the gas flow of the shunt pipeline to the booster pump and the water-gas separator through the liquid level in the natural gas well, realize the bidirectional circulation of the bidirectional conveying pipeline, satisfy the recovery of natural gas, and realize the drainage operation. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure schematic diagram of the present application;

[0021] Figure 2 It is the overall structure schematic diagram of the present application;

[0022] Figure 3 It is the structure schematic diagram of the drainage and air guide module of the present application;

[0023] Figure 4 It is the structure schematic diagram of the drainage and air guide module of the present application;

[0024] Figure 5 It is the explosion structure schematic diagram of the drainage and air guide module of the present application;

[0025] Figure 6 It is the structure schematic diagram of the drainage and air guide module of the present application; Figure 4 It is the enlarged structure schematic diagram of the A area of the present application;

[0026] Figure 7 It is the structure schematic diagram of the drainage and air guide module of the present application;

[0027] Figure 8 It is the structure schematic diagram of the drainage and air guide module of the present application;

[0028] Figure 9 It is the structure schematic diagram of the drainage and air guide module of the present application;

[0029] Figure 10 It is the explosion structure schematic diagram of the drainage and air guide module of the present application;

[0030] In the figure: 1, circulating conveying mechanism; 101, bidirectional conveying pipeline; 102, shunt pipeline; 103, booster pump; 104, water-gas separator; 105, exhaust splicing pipe; 106, gas injection splicing pipe; 107, pipe body support frame; 2, drainage gas guide module; 3, isolation monitoring mechanism; 301, sealing seat; 302, isolation sleeve; 303, power connection box; 304, sealing separation disc; 305, transmission motor; 306, liquid level meter; 307, transmission shaft; 308, reciprocating poking unit; 309, transmission disc; 310, conical mounting head; 311, active elastic poking piece; 4, shunt drainage mechanism; 401, shunt connection cover; 402, drainage unit; 403, positioning ring; 404, sealing ring; 405, gas guide elbow; 406, guide elbow rod; 407, blocking piece; 408, supporting spring; 5, multi-channel air inlet mechanism; 501, multi-channel air inlet strip; 502, mounting pressing strip; 503, blocking sliding piece; 504, air inlet hole; 505, first air guide hole; 506, second air guide hole; 507, driven elastic poking piece. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0032] The booster pump 103 (model MDZ-20-180) and the transmission motor 305 (model GV50-3.7KW-60-S) mentioned in the present application can be purchased from the market or customized privately.

[0033] Please refer to Figure 1 and Figure 2 , the present application provides an embodiment: a high-efficiency drainage gas recovery device, comprising a drainage gas guide module 2, the upper end of the drainage gas guide module 2 is installed with a circulating conveying mechanism 1, the circulating conveying mechanism 1 and the drainage gas guide module 2 are inserted into the inside of a natural gas well of a rock layer, and a drainage gap is formed between the drainage gas guide module 2 and the inner wall of the natural gas well, the circulating conveying mechanism 1 comprises a plurality of bidirectional conveying pipelines 101, the plurality of bidirectional conveying pipelines 101 are linearly arranged, the upper end of one of the bidirectional conveying pipelines 101 is installed with a shunt pipeline 102, one end of the shunt pipeline 102 is fixedly installed with a booster pump 103, and the other end of the shunt pipeline 102 is fixedly installed with a water-gas separator 104, and the water-gas separator 104 facilitates water-gas separation of recovered natural gas.

[0034] Please refer to Figure 3 and Figure 5The bidirectional conveying pipeline 101 is composed of the exhaust splicing pipe 105, the gas injection splicing pipe 106 and the pipe body support frame 107, the gas injection splicing pipe 106 is arranged on the inner side of the exhaust splicing pipe 105, the upper end of the exhaust splicing pipe 105 and the gas injection splicing pipe 106 are fixedly connected through the pipe body support frame 107, the adjacent two exhaust splicing pipes 105 and the gas injection splicing pipe 106 are connected through threads, the output end of the booster pump 103 is connected with the gas injection splicing pipe 106, the input end of the booster pump 103 and the water-gas separator 104 are connected with the exhaust splicing pipe 105 through the shunt pipeline 102, the gas conveying amount of the shunt pipeline 102 to the booster pump 103 and the water-gas separator 104 is adjusted by the liquid level in the natural gas well, and the bidirectional conveying pipeline 101 realizes the bidirectional circulation conveying of the natural gas.

[0035] Please refer to Figures 3 to 5 The drainage gas guide module 2 is composed of the isolation monitoring mechanism 3, the shunt drainage mechanism 4 and the multi-channel gas inlet mechanism 5, the isolation monitoring mechanism 3 is arranged on the bottom end of the shunt drainage mechanism 4, the isolation monitoring mechanism 3 comprises an isolation sleeve 302, the upper end of the isolation sleeve 302 is connected with the gas injection splicing pipe 106 through threads, the bottom end of the isolation sleeve 302 is fixedly arranged with a sealing seat 301, the inner side of the bottom end of the sealing seat 301 is fixedly arranged with an electricity receiving box 303, the inner side of the upper end of the sealing seat 301 is fixedly arranged with a sealing separation disc 304, the lower end surface of the sealing separation disc 304 is fixedly arranged with a transmission motor 305 in the middle, the sealing separation disc 304 is rotatably connected with a transmission shaft 307 in the middle, the output end of the transmission motor 305 penetrates through the sealing separation disc 304 and is connected with the transmission shaft 307 through a coupling, the upper end surface of the sealing separation disc 304 is fixedly arranged with a liquid level meter 306 on one side of the transmission shaft 307, the electricity receiving box 303 is internally provided with a main board, the liquid level meter 306 and the transmission motor 305 are electrically connected with the main board, so that the transmission motor 305 drives the reciprocating driving unit 308 to move upward through the transmission shaft 307.

[0036] Please refer to Figure 7 The transmission shaft 307 is arranged on the outer side of the reciprocating driving unit 308, the reciprocating driving unit 308 linearly reciprocates along the axis of the transmission shaft 307, the reciprocating driving unit 308 comprises a transmission disc 309, a plurality of conical mounting heads 310 are fixedly arranged on the outer side of the transmission disc 309, a driven elastic tab 311 is fixedly arranged on each side of each conical mounting head 310, the transmission shaft 307 is connected with the transmission disc 309 through threads, the plurality of conical mounting heads 310 are circumferentially arranged relative to the axis of the transmission shaft 307, the adjacent two driven elastic tabs 311 are symmetrically arranged relative to the conical mounting head 310, and the transmission disc 309 can drive the plurality of conical mounting heads 310 to move upward synchronously, so that the driven elastic tabs 507 on both sides of the plurality of sealing sliding plates 503 can be driven by the active elastic tabs 311.

[0037] Please refer to Figure 5 and Figure 6 , the shunt drainage mechanism 4 includes a shunt connecting cover 401, the upper end of the shunt connecting cover 401 is connected with the exhaust splicing pipe 105 through screw connection, the upper end of the transmission shaft 307 penetrates the middle part of the transmission disc 309 and is inserted into the inner side of the bottom end of the shunt connecting cover 401, a plurality of drainage units 402 are installed at the bottom end of the shunt connecting cover 401, a positioning ring 403 is installed at the outer side of the bottom end of the plurality of drainage units 402, the positioning ring 403 is fixedly connected with the isolation sleeve 302, a sealing ring 404 is arranged at the outer side of the positioning ring 403, the positioning ring 403 can block the drainage gap through the sealing ring 404, thereby improving the drainage effect.

[0038] Please refer to Figure 6 , the drainage unit 402 includes a gas guide elbow 405, the upper end of the plurality of gas guide elbows 405 penetrates the positioning ring 403 and the isolation sleeve 302 and is fixedly connected with the shunt connecting cover 401, the exhaust splicing pipe 105 is connected with the plurality of gas guide elbows 405 through the shunt connecting cover 401, the inner side of the bottom end of the gas guide elbow 405 is slidingly connected with a blocking piece 407, the lower end surface of the blocking piece 407 is provided with a supporting spring 408, the inner side of the supporting spring 408 is installed with a guide elbow rod 406, the bottom end of the guide elbow rod 406 is fixedly connected with the positioning ring 403, the upper end of the guide elbow rod 406 is slidingly connected with the blocking piece 407 through the supporting spring 408, the blocking piece 407 is elastically supported by the supporting spring 408, thereby facilitating the one-way blocking of the gas guide elbow 405 by the blocking piece 407, and avoiding the particles in the natural gas well from entering the gas injection splicing pipe 106.

[0039] Please refer to Figure 5 , Figure 8 , Figure 9 and Figure 10The surface of the isolation monitoring mechanism 3 is provided with a plurality of circumferentially arranged multi-channel air inlet mechanisms 5, the multi-channel air inlet mechanism 5 comprises a multi-channel air inlet strip 501, one end of each conical mounting head 310 is inserted between adjacent two multi-channel air inlet strips 501, the multi-channel air inlet strip 501 is provided with a mounting pressing strip 502 on one side, the multi-channel air inlet strip 501 and the mounting pressing strip 502 are fixedly connected, the isolation sleeve 302 is fixedly connected with a plurality of mounting pressing strips 502, a plurality of blocking sliding plates 503 are slidably connected between the multi-channel air inlet strip 501 and the mounting pressing strip 502, a plurality of sliding grooves are arranged on one side of the multi-channel air inlet strip 501, the blocking sliding plate 503 is arranged on the inner side of the sliding groove, a plurality of air inlet holes 504 are arranged on the inner side of the mounting pressing strip 502, a plurality of first air guide holes 505 are arranged on one side of the mounting pressing strip 502, the air inlet hole 504 and the first air guide hole 505 are coaxial, a second air guide hole 506 is arranged on one side of the blocking sliding plate 503, the diameters of the air inlet hole 504, the first air guide hole 505 and the second air guide hole 506 are consistent, two driven elastic tabs 507 are fixedly arranged at the bottom end of the blocking sliding plate 503, the adjacent two driven elastic tabs 507 are symmetrically arranged relative to the blocking sliding plate 503, the opening and closing state of the blocking sliding plate 503 can be actively controlled by the reciprocating poking unit 308 through liquid level measurement, the number of the blocking sliding plate 503 can be adjusted, and the isolation effect of the multi-channel air inlet strip 501 on different depth water bodies can be met.

[0040] In summary, when the natural gas in the rock stratum natural gas well is recovered, the number of the bidirectional conveying pipeline 101 is determined according to the recovery depth, so that the plurality of bidirectional conveying pipelines 101 are spliced with each other and connected with the shunt pipeline 102 through the booster pump 103 and the water-gas separator 104, and the drainage and gas guiding module 2 is installed at the bottom end of the circulating conveying mechanism 1, when the drainage and gas guiding module 2 is lowered in the natural gas well;

[0041] The transmission motor 305 is started, so that the transmission motor 305 drives the reciprocating poking unit 308 to move upward under the support of the sealing and separating disc 304, and the transmission disc 309 synchronously drives the plurality of conical mounting heads 310 to move upward, so that the driven elastic tabs 507 on both sides of the blocking sliding plate 503 are poked by the active elastic tabs 311, at this time, the blocking sliding plate 503 slides between the multi-channel air inlet strip 501 and the mounting pressing strip 502, and the air inlet hole 504, the first air guide hole 505 and the second air guide hole 506 are in the coaxial state, the booster pump 103 is started, so that the booster pump 103 pumps the inside of the exhaust splicing pipe 105 through the shunt pipeline 102;

[0042] Meanwhile, the natural gas in the natural gas well can be guided and transported to the inner side of the isolation casing 302 through the air inlet hole 504, the first air guide hole 505 and the second air guide hole 506, so as to facilitate the continuous extraction of the natural gas by the booster pump 103 and the injection of the shunt connection cover 401 through the gas injection splicing pipe 106, and then the shunt connection cover 401 continuously injects and pressurizes the drainage gap between the isolation casing 302 and the natural gas well through the plurality of air guide elbows 405, thereby effectively reducing the water level in the natural gas well, avoiding the water entering the inner side of the isolation casing 302 through the air inlet hole 504, the first air guide hole 505 and the second air guide hole 506, and affecting the recovery operation of the natural gas;

[0043] The liquid level depth of the sealing seat 301 into the water body can be monitored by the liquid level meter 306, and the opening and closing state of the sealing slide 503 can be actively controlled by the reciprocating dial unit 308 through the liquid level measurement, so as to adjust the number of closed sealing slides 503, meet the isolation effect of the multi-channel air inlet strip 501 on water bodies of different depths, and guide the air through the remaining open sealing slide 503, maintain the continuous recovery of the natural gas, and then the natural gas is transported to the inner side of the water-gas separator 104 through the shunt pipeline 102 after being discharged by the exhaust splicing pipe 105, and then the water-gas separator 104 can separate the water and gas, and the gas flow to the booster pump 103 and the water-gas separator 104 through the shunt pipeline 102 is adjusted by the liquid level in the natural gas well, so as to realize the bidirectional circulation of the bidirectional delivery pipeline 101, meet the recovery of the natural gas, and realize the drainage operation.

[0044] It will be obvious to a person skilled in the art that, without departing from the spirit or essential characteristics of the application, the present application can be implemented in other specific forms. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the description given above, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims.

Claims

1. A high-efficiency drainage gas recovery device, comprising a drainage gas guide module (2), characterized in that: The drainage air guide module (2) is composed of an isolation monitoring mechanism (3), a shunt drainage mechanism (4) and a multi-channel air inlet mechanism (5), the bottom end of the shunt drainage mechanism (4) is provided with the isolation monitoring mechanism (3), the surface of the isolation monitoring mechanism (3) is provided with a plurality of circumferentially arranged multi-channel air inlet mechanisms (5), the shunt drainage mechanism (4) comprises a shunt connecting cover (401), the bottom end of the shunt connecting cover (401) is provided with a plurality of drainage units (402), the outer side of the bottom end of the plurality of drainage units (402) is provided with a positioning ring (403), and the outer side of the positioning ring (403) is provided with a sealing ring (404); The multi-channel air inlet mechanism (5) comprises a multi-channel air inlet strip (501), one side of the multi-channel air inlet strip (501) is provided with a mounting pressing strip (502), a plurality of blocking sliding sheets (503) are slidably connected between the multi-channel air inlet strip (501) and the mounting pressing strip (502), the inner side of the multi-channel air inlet strip (501) is provided with a plurality of air inlet holes (504), one side of the mounting pressing strip (502) is provided with a plurality of first air guide holes (505), one side of the blocking sliding sheet (503) is provided with a second air guide hole (506), and the bottom end of the blocking sliding sheet (503) is fixedly provided with two driven elastic flaps (507), and the two adjacent driven elastic flaps (507) are symmetrically arranged relative to the blocking sliding sheet (503); The isolation monitoring mechanism (3) comprises an isolation sleeve (302), the bottom end of the isolation sleeve (302) is fixedly provided with a sealing seat (301), the inner side of the bottom end of the sealing seat (301) is fixedly provided with an electricity receiving box (303), the inner side of the bottom end of the sealing seat (301) is fixedly provided with a sealing separation disc (304), the middle part of the lower end surface of the sealing separation disc (304) is fixedly provided with a transmission motor (305), the middle part of the sealing separation disc (304) is rotatably connected with a transmission shaft (307), the upper end surface of the sealing separation disc (304) is fixedly provided with a liquid level meter (306) on one side of the transmission shaft (307), and the outer side of the transmission shaft (307) is provided with a reciprocating flipping unit (308); The reciprocating flipping unit (308) comprises a transmission disc (309), a plurality of conical mounting heads (310) are fixedly arranged on the outer side of the transmission disc (309), a driven elastic flap (311) is fixedly arranged on each side of each conical mounting head (310), the transmission shaft (307) is threadedly connected with the transmission disc (309), the plurality of conical mounting heads (310) are circumferentially arranged relative to the axis of the transmission shaft (307), and adjacent two driven elastic flaps (311) are symmetrically arranged relative to the conical mounting head (310), and one end of each conical mounting head (310) is inserted into adjacent two multi-channel air inlet strips (501).

2. The high-efficiency drainage gas recovery device of claim 1, wherein: The drainage unit (402) comprises an air guide elbow (405), the inner side of the bottom end of the air guide elbow (405) is slidably connected with a blocking sheet (407), the lower end surface of the blocking sheet (407) is provided with a supporting spring (408), and the inner side of the supporting spring (408) is mounted with a guide elbow lever (406).

3. The high-efficiency drainage gas recovery device of claim 2, wherein: The upper end of the drainage and air guide module (2) is mounted with a circulating conveying mechanism (1), the circulating conveying mechanism (1) comprises a plurality of bidirectional conveying pipelines (101), one end of one of the bidirectional conveying pipelines (101) is mounted with a shunt pipeline (102), one end of the shunt pipeline (102) is fixedly mounted with a booster pump (103), the other end of the shunt pipeline (102) is fixedly mounted with a water-gas separator (104), the bidirectional conveying pipeline (101) is composed of an exhaust splicing pipe (105), an air injection splicing pipe (106) and a pipe body support frame (107), the inner side of the exhaust splicing pipe (105) is mounted with the air injection splicing pipe (106), and the upper ends of the exhaust splicing pipe (105) and the air injection splicing pipe (106) are fixedly connected through the pipe body support frame (107).

4. The high-efficiency drainage gas recovery device of claim 3, wherein: The circulating conveying mechanism (1) and the drainage and air guide module (2) are inserted into the inside of a natural gas well of a rock stratum, a drainage gap is formed between the drainage and air guide module (2) and the inner wall of the natural gas well, the plurality of bidirectional conveying pipelines (101) are linearly arranged, adjacent two of the exhaust splicing pipes (105) and the air injection splicing pipes (106) are threadedly connected, the output end of the booster pump (103) is throughly connected with the air injection splicing pipe (106), and the input ends of the booster pump (103) and the water-gas separator (104) are throughly connected with the exhaust splicing pipe (105) through the shunt pipeline (102).

5. The high-efficiency drainage gas recovery device of claim 4, wherein: The upper end of the shunt connecting cover (401) is threadedly connected with the exhaust splicing pipe (105), the upper ends of the plurality of air guide elbows (405) penetrate through the positioning ring (403) and the isolation sleeve (302) and are fixedly connected with the shunt connecting cover (401), and the exhaust splicing pipe (105) is throughly connected with the plurality of air guide elbows (405) through the shunt connecting cover (401).

6. The high-efficiency drainage gas recovery device of claim 5, wherein: The positioning ring (403) is fixedly connected with the isolation sleeve (302), the upper end of the isolation sleeve (302) is threadedly connected with the exhaust splicing pipe (105), the bottom end of the guide elbow lever (406) is fixedly connected with the positioning ring (403), and the upper end of the guide elbow lever (406) is slidably connected with the blocking sheet (407) through the supporting spring (408).

7. The high-efficiency drainage gas recovery device of claim 6, wherein: The inside of the power connection box (303) is provided with a main board, the liquid level meter (306) and the transmission motor (305) are electrically connected with the main board, the output end of the transmission motor (305) penetrates through the sealing partition disc (304) and is connected with the transmission shaft (307) through a shaft coupling, the upper end of the transmission shaft (307) penetrates through the middle part of the transmission disc (309) and is inserted into the inside of the bottom end of the shunt connecting cover (401), and the reciprocating shifting unit (308) linearly reciprocates along the axis of the transmission shaft (307).

8. The high-efficiency drainage gas recovery device of claim 7, wherein: The isolation sleeve (302) is fixedly connected with a plurality of mounting pressure strips (502), the air inlet hole (504) is coaxial with the first air guide hole (505), the multi-channel air inlet strip (501) is fixedly connected with the mounting pressure strip (502), one side of the multi-channel air inlet strip (501) is provided with a plurality of sliding grooves, the blocking sliding sheet (503) is arranged on the inner side of the sliding groove, and the diameters of the air inlet hole (504), the first air guide hole (505) and the second air guide hole (506) are consistent.

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