Drainage gas recovery equipment for natural gas extraction

Abstract

The invention discloses drainage gas production equipment for natural gas extraction, and relates to the technical field of gas-liquid separation. The water drainage and gas production equipment for natural gas extraction comprises a ground, an extraction opening is fixedly connected to the interior of the ground, and the top of the extraction opening is fixedly connected with water drainage equipment through a gas inlet pipeline; a first rotating shaft is movably connected into the drainage equipment, a first gear is fixedly connected to the outer side of the first rotating shaft, a second rotating shaft is fixedly connected to the bottom of the anti-blocking equipment, a second gear is fixedly connected to the bottom of the second rotating shaft, a rotating disc is fixedly connected to the bottom of the first rotating shaft, the rotating disc is slidably connected with a sliding block, and the rear side of the sliding block is fixedly connected with a six-branch pipe. The top of the six-way pipe is fixedly connected with the defoaming agent feeding pipe, and the bottom of the sliding block is movably connected with the rotating plate through a movable part. According to the water drainage and gas recovery equipment for natural gas extraction, the first rotating shaft rotates, so that the discharging pipe moves outwards, and the equipment controls the defoaming efficiency by adjusting the rotating speed of the first rotating shaft.

Description

Technical Field

[0001] This invention relates to the field of gas-liquid separation technology, specifically to a drainage gas extraction device for natural gas extraction. Background Technology

[0002] The principle of foam drainage gas production technology is to inject surfactants into the casing or tubing. Under the agitation of the natural gas flow, the gas and liquid are fully mixed to form foam. As the bubble interface is generated, the liquid is continuously lifted, and the liquid at the bottom of the foam column is continuously replenished until the bottom water is completely replaced, thereby discharging the liquid at the bottom of the well. After discharge, the gas and liquid still need to be separated.

[0003] Chinese patent CN117432388A, authorized and published on January 23, 2024, discloses a drainage gas extraction device for natural gas extraction, including a collection tank, a dispersion mechanism, a defoaming mechanism, an exhaust mechanism, and a drain pipe. The discharge pipe is installed between the collection tank and the collection tank. The foam discharged from the discharge pipe into the collection tank comes into contact with the interior of the lower guide mechanism. The resulting hydraulic pressure causes the connecting shaft to drive the rotating blades to rotate. Through the dispersion of the support frame and the four guide plates installed at a downward angle, and under the elastic torque applied by the torsion shaft, the guide plates can swing, accelerating the flow of foam. The gas enters the interior of the connecting pipe. At this time, the swing shafts at both ends of the swing frame repeatedly swing left and right elastically inside the spring slide rail. With the connection of the central shaft, the filter plate inside the swing frame drives the gas to perform elastic swing filtration. In the aforementioned application documents, when the foaming agent reacts quickly with the moisture in the natural gas, a large amount of foam is generated. The defoaming mechanism in the collection tank cannot promptly puncture the large amount of dense foam, causing the foam to overflow from the exhaust mechanism and drain pipe, thereby resulting in poor gas-liquid separation of natural gas and waste of natural gas. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a drainage gas extraction device for natural gas extraction, solving the problems mentioned in the background section. To achieve the above objectives, this invention provides the following technical solution: a drainage gas extraction device for natural gas extraction, comprising: The ground has a mining opening fixedly connected inside. The top of the mining opening is fixedly connected to a drainage device via an air intake pipe. The drainage device has a rotating shaft movably connected inside. A motor is fixedly connected to the top of the rotating shaft 1, and a gear is fixedly connected to the outside of the rotating shaft 1. The bottom of the anti-clogging device has a rotating shaft 2 fixedly connected, and a gear 2 is fixedly connected to the bottom of the rotating shaft 2, meshing with gear 1. A turntable is fixedly connected to the bottom of the rotating shaft 1. The turntable is slidably connected to a slider via a groove on its surface. A spring is fixedly connected between the bottom of the slider and the bottom of the groove. The rear side of the slider is fixedly connected to a 6-point pipe. The top of the 6-point pipe is fixedly connected to a defoamer feed pipe. A movable joint is movably connected to the top of the defoamer feed pipe. The bottom of the slider is movably connected to a rotating plate via a movable component. The rotating plate and discharge pipe are designed so that the defoamer is sprayed from the discharge pipe onto the surface of the rotating plate. When there is too much foam inside the equipment, the rotation speed of the rotating shaft is increased, and the slider slides to the outside of the chute under the action of centrifugal force. This increases the distribution range of the defoamer sprayed from the discharge pipe and improves the defoaming ability of the equipment. At the same time, the L-shaped push rod pushes the rotating plate to rotate, which further increases the distribution range of the defoamer.

[0005] Preferably, the transmission component includes a discharge pipe, an L-shaped push rod, a fixed plate, and a guide groove. The bottom of the slider is fixedly connected to the discharge pipe, which is connected to the six-point pipe through the slider. The bottom of the slider is fixedly connected to the L-shaped push rod, and the bottom of the turntable is fixedly connected to the fixed plate. The fixed plates are movably connected to the turntable through a rotating shaft. The inner surface of the turntable is provided with multiple guide grooves.

[0006] Preferably, the top of the ground is fixedly connected to the bottom of the drainage equipment, a foaming agent additive is fixedly connected to the top of the mining opening, a movable foaming device is movably connected inside the drainage equipment, an air outlet pipe is fixedly connected to the top of the drainage equipment, an anti-clogging device is movably connected to the bottom of the air inlet pipe, an anti-foaming agent throttling component is movably connected to the outside of the discharge pipe, and an intermittent exhaust component is movably connected to the outside of the rotating shaft.

[0007] Preferably, the number of chutes is six, each chute is circumferentially distributed about the center of the turntable, the number of sliders is six, the number of springs is six, the number of discharge pipes is six, the number of L-shaped push rods is six, the number of fixing plates is twelve, every two fixing plates form a group, the number of rotating plates is six, and the number of guide channels is twenty-four, every two guide channels form a group.

[0008] Preferably, the defoamer throttling component includes a push block 1, a spring 2, a hydraulic block 1, a hose, a fixing plate 2, a hydraulic block 2, a push block 2, a valve, and a valve handle. A hydraulic block 1 is fixedly connected to the front side of the chute, a push block 1 is movably connected to the rear side of the hydraulic block 1, a spring 2 is fixedly connected between the push block 1 and the hydraulic block 1, a one-end fixedly connected to the front side of the hydraulic block 1, and a one-end fixedly connected to the other side of the hose. A fixing plate 2 is fixedly connected to the outer side of the discharge pipe, a hydraulic block 2 is fixedly connected to the bottom of the fixing plate 2, a push block 2 is movably connected to the bottom of the hydraulic block 2, a valve handle is fixedly connected to the front side of the push block 2, a valve is movably connected to the outer side of the discharge pipe, and a valve handle is fixedly connected to the outer side of the valve. The defoamer throttling component is installed. When there is too much foam inside the equipment, the slider slides outward under the action of centrifugal force, which increases the valve opening and thus increases the defoamer output, thereby improving the defoaming efficiency of the equipment. At the same time, when the foam decreases, the slider returns to its original position, which decreases the valve opening and reduces the defoamer output. This achieves the effect of dynamically controlling the defoamer flow and saving costs.

[0009] Preferably, the number of push blocks one is six, the number of springs two is six, the number of hydraulic blocks one is six, the number of hoses is six, the number of fixing plates two is six, the number of hydraulic blocks two is six, the number of push blocks two is six, the number of valves is six, and the number of valve handles is six.

[0010] Preferably, the turntable has a flexible tube that is penetrated and fixedly connected to its interior.

[0011] Preferably, the intermittent venting assembly includes a reciprocating screw, a threaded block, a sealing block, a sliding block, a slide rod, and a gas collecting port. The reciprocating screw is fixedly connected to the outer side of the rotating shaft. A threaded block is threadedly connected to the outer side of the reciprocating screw. A sealing block is fixedly connected to the right side of the threaded block. A sliding block is fixedly connected to the right side of the sealing block. A slide rod is slidably connected inside the sliding block. The bottom of the slide rod is fixedly connected to the interior of the drainage device. A gas collecting port is fixedly connected to the bottom of the vent pipe. By using the intermittent venting assembly, a certain reaction time is required after the defoamer comes into contact with the foam. During this time, the foam bursts, releasing the internal natural gas to the outside, causing the sealing block to seal the gas collecting port, thereby increasing the drainage efficiency of the drainage device and improving the overall working efficiency of the equipment.

[0012] Preferably, the bottom horizontal height of the reciprocating lead screw is higher than the top horizontal height of the gear.

[0013] Preferably, the size of the sealing block is the same as the size of the gas collecting port.

[0014] This invention provides a drainage gas extraction device for natural gas extraction. It has the following beneficial effects: This drainage and gas extraction equipment for natural gas extraction, when foam increases in the extraction port, works in conjunction with shaft one, gear one, gear two, shaft two, turntable, chute, slider, defoamer feed pipe, discharge pipe, and L-shaped push rod to move the slider outward, thereby increasing the spray range of the defoamer and improving the defoaming efficiency of the equipment, preventing foam from flowing out of the gas outlet pipe.

[0015] This drainage and gas extraction equipment for natural gas extraction, when the slider moves outward, works in conjunction with push block one, hydraulic block one, hose, fixed plate two, hydraulic block two, push block two, and valve handle to control the valve opening of the discharge pipe. The faster the rotation speed of shaft one, the greater the flow rate of defoamer sprayed out, thus allowing the equipment to adjust the amount of defoamer consumed according to the amount of foam, thereby saving costs.

[0016] This drainage and gas extraction equipment for natural gas extraction works by rotating a shaft, which, in conjunction with a reciprocating screw, threaded block, sealing block, slider, and slide rod, causes the sealing block to intermittently block the gas collection port. This allows the defoamer inside the equipment to fully react with the foam, maximizing the collection of natural gas before it is discharged from the outlet pipe, thereby improving the purity of the natural gas. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall internal structure of the present invention; Figure 3 This is a schematic diagram of some of the components of the present invention; Figure 4 This is a schematic diagram of another component structure of the present invention; Figure 5 This is a schematic diagram of the defoamer throttling component structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a schematic diagram of the intermittent exhaust assembly structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B.

[0018] In the picture: 100. Ground surface; 200. Mining opening; 300. Drainage equipment; 400. Foaming agent additive; 500. Air inlet pipe; 600. Movable foaming device; 700. Air outlet pipe; 800. Anti-clogging device; 901. Shaft 1; 902. Gear 1; 903. Gear 2; 904. Shaft 2; 905. Turntable; 906. Slide rail; 907. Slider; 908. Spring 1; 909. Defoamer feed pipe; 910. Movable joint; 911. 6 / 8 pipe; 912. Discharge pipe; 913. L-shaped push rod; 914. Fixed plate 1; 915. Rotating plate; 916. Guide channel; 1000. Defoamer throttling assembly; 1001. Push block one; 1002. Spring two; 1003. Hydraulic block one; 1004. Hoses; 1005. Fixing plate two; 1006. Hydraulic block two; 1007. Push block two; 1008. Valve; 1009. Valve handle; 1100. Intermittent exhaust assembly; 1101. Reciprocating lead screw; 1102. Threaded block; 1103. Sealing block; 1104. Sliding block; 1105. Sliding rod; 1106. Air collection port. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Example 1, please refer to Figures 1-4 A drainage gas extraction device for natural gas extraction, comprising: Ground 100 has an extraction port 200 fixedly connected inside. The top of the extraction port 200 is fixedly connected to a drainage device 300 via an intake pipe 500. The drainage device 300 removes moisture from the natural gas. The top of the ground 100 is fixedly connected to the bottom of the drainage device 300. A foaming agent additive 400 is fixedly connected to the top of the extraction port 200. The foaming agent additive 400 reacts with the moisture in the extracted natural gas to form a large amount of foam, which carries the natural gas out of the extraction port 200, making natural gas extraction more convenient. The drainage device 300 is internally connected to a movable bubble-piercing device 600. The movable bubble-piercing device 600 is installed so that larger foam inside the drainage device 300 is pierced by the movable bubble-piercing device 600, thereby separating water from natural gas. The top of the drainage device 300 is fixedly connected to an air outlet pipe 700. The bottom of the air inlet pipe 500 is movably connected to an anti-clogging device 800. The anti-clogging device 800 is installed so that foam will not clog the air inlet pipe 500. The outside of the discharge pipe 912 is movably connected to an anti-foaming agent throttling component 1000. The outside of the rotating shaft 901 is movably connected to an intermittent exhaust component 1100.The drainage device 300 has an internally connected rotating shaft 901. A motor is fixedly connected to the top of the rotating shaft 901, and a gear 902 is fixedly connected to the outside of the rotating shaft 901. The anti-clogging device 800 has a fixedly connected rotating shaft 904 at the bottom, and a gear 903 is fixedly connected to the bottom of the rotating shaft 904. The gear 903 meshes with the gear 902. The bottom of the rotating shaft 901 has a fixedly connected turntable 905. The turntable 905 is slidably connected to the slider 907 through a groove 906 on its surface. The groove 906 allows the slider 907 to move along the direction of the groove 906. The bottom of the slider 907... A spring 908 is fixedly connected to the bottom of the slide 906. The spring 908 allows the slider 907 to automatically return to its original position. The rear side of the slider 907 is fixedly connected to a 6 / 8 pipe 911. The top of the 6 / 8 pipe 911 is fixedly connected to a defoamer feed pipe 909. A movable joint 910 is movably connected to the top of the defoamer feed pipe 909. The bottom of the slider 907 is movably connected to a rotating plate 915 via a movable component. The transmission components include a discharge pipe 912, an L-shaped push rod 913, a fixed plate 914, and a guide channel 916. The bottom of the slider 907 is fixedly connected to the discharge pipe 912, which... The slider 907 is connected to the six-point pipe 911. An L-shaped push rod 913 is fixedly connected to the bottom of the slider 907. A fixing plate 914 is fixedly connected to the bottom of the turntable 905. The fixing plates 914 are movably connected to the turntable 915 via a rotating shaft. Multiple guide grooves 916 are formed on the inner surface of the turntable 915. There are six slide grooves 906, each distributed circumferentially around the center of the turntable 905. There are six sliders 907, six springs 908, six discharge pipes 912, six L-shaped push rods 913, and twelve fixing plates 914. There are six rotating plates 915 and twenty-four guide channels 916, arranged in pairs of fixed plates 914. The rotating plates 915 and discharge pipes 912 are configured so that the defoamer is sprayed from the discharge pipes 912 onto the surface of the rotating plates 915. When there is excessive foam inside the equipment, the rotating shaft 901 increases its speed, causing the slider 907 to slide outwards from the chute 906 under centrifugal force. This increases the distribution range of the defoamer sprayed from the discharge pipes 912, improving the defoaming capacity of the equipment. Simultaneously, the L-shaped push rod 913 pushes the rotating plates 915 to rotate, further increasing the distribution range of the defoamer.

[0021] In operation, when the equipment starts working, the foaming agent additive 400 adds foaming agent to the extraction port 200, causing the moisture in the natural gas to react with the foaming agent to form a large number of bubbles. These bubbles then enter the drainage device 300 from the extraction port 200 through the air intake pipe 500. At this time, the motor is started, causing the rotating shaft 901 to rotate, which in turn causes the gear 902 and gear 903 to rotate, and the rotating shaft 904 to rotate. The rotating shaft 904 drives the anti-clogging device 800 to rotate, preventing the air intake pipe 500 from being blocked by a large amount of foam. This causes the turntable 905 to rotate, causing the slider 907 to move outward along the slide groove 906 under the action of centrifugal force, and the L-shaped push rod 913 to move outward. At this time, the defoamer feed pipe 909 is opened to defoam. The defoamer flows along the defoamer inlet pipe 909 into the interior of the slider 907, causing the defoamer to be sprayed out along the outlet pipe 912. This allows the defoamer to come into contact with the rotating plate 915, resulting in more even spraying. When there is excessive foam inside the drainage device 300, the motor power is increased, causing the rotating shaft 901 to rotate faster. This increases the centrifugal force on the slider 907, causing it to move further outward. The L-shaped push rod 913 then moves outward with the slider 907, causing the rotating plate 915 to rotate outward at a greater angle under the action of the L-shaped push rod 913. This allows the defoamer sprayed from the outlet pipe 912 to be guided by the rotating plate 915, forming a larger spray area. This improves the defoaming efficiency of the equipment and prevents excessive bubbles from overflowing from the outlet pipe 700 inside the equipment.

[0022] Example 2, please refer to Figures 1-6Based on Embodiment 1, the defoamer throttling component 1000 includes a push block 1001, a spring 1002, a hydraulic block 1003, a hose 1004, a fixing plate 1005, a hydraulic block 1006, a push block 1007, a valve 1008, and a valve handle 1009. The hydraulic block 1003 is fixedly connected to the front side of the slide groove 906, and the push block 1001 is movably connected to the rear side of the hydraulic block 1003. A spring 1002 is fixedly connected between the push block 1001 and the hydraulic block 1003. The spring 1002 is configured to... Block 1001 can automatically reset inward. The front side of hydraulic block 1003 is fixedly connected to one end of hose 1004, and the other end of hose 1004 is fixedly connected to the top of hydraulic block 2 1006. The hose 1004 is installed so that the interior of hydraulic block 1003 communicates with the interior of hydraulic block 2 1006. The turntable 905 is penetrated and fixedly connected to the hose 1004. A fixing plate 2 1005 is fixedly connected to the outside of the discharge pipe 912. Hydraulic block 2 1006 is fixedly connected to the bottom of fixing plate 2 1005. The bottom of hydraulic block 2 1006 is movably connected... The system includes push block 1007, with valve handle 1009 fixedly connected to its front side. Valve 1008 is movably connected to the outside of discharge pipe 912. Valve 1008 controls the flow rate of the defoamer. Valve handle 1009 is fixedly connected to the outside of valve 1008. There are six push blocks 1001, six springs 1002, six hydraulic blocks 1003, six hoses 1004, six fixing plates 1005, and six hydraulic blocks 1006. The equipment consists of six push blocks 1007, six valves 1008, and six valve handles 1009. A defoamer throttling component 1000 is installed. When there is excessive foam inside the equipment, the slider 907 slides outward under centrifugal force, increasing the opening of valve 1008 and thus increasing the defoamer output, thereby improving the equipment's defoaming efficiency. Conversely, when the foam decreases, the slider 907 resets inward, decreasing the opening of valve 1008 and reducing the defoamer output. This achieves dynamic control of the defoamer flow rate, saving costs.

[0023] In use, based on Example 1, when the foam inside the equipment increases, the rotation speed of the rotating shaft 901 increases, causing the slider 907 to move outward a greater distance. This causes the push block 1001 to move outward under the action of the slider 907, increasing the internal pressure of the hydraulic block 1003. This internal pressure of the hydraulic block 1003 is transmitted to the hydraulic block 1006 through the hose 1004, increasing the internal pressure of the hydraulic block 1006. This causes the push block 1007 to push downward, causing the valve handle 1009 to rotate under the drive of the push block 1007. This adjusts the opening of the valve 1008 to the maximum, thereby increasing the flow rate of the defoamer to the maximum. At the same time, when the foam decreases, the slider 907 returns to its original position, causing the opening of the valve 1008 to decrease, thus reducing the amount of defoamer discharged. This achieves the effect of dynamically controlling the flow rate of the defoamer, saving costs.

[0024] Example 3, please refer to Figures 1-8 Based on Embodiments 1 and 2, the intermittent exhaust assembly 1100 includes a reciprocating screw 1101, a threaded block 1102, a sealing block 1103, a sliding block 1104, a slide rod 1105, and an air collection port 1106. The reciprocating screw 1101 is fixedly connected to the outer side of the rotating shaft 901. The threaded block 1102 is threadedly connected to the outer side of the reciprocating screw 1101. The bottom horizontal height of the reciprocating screw 1101 is higher than the top horizontal height of the gear 902. The sealing block 1103 is fixedly connected to the right side of the threaded block 1102. The size of the sealing block 1103 is the same as the size of the air collection port 1106. The sliding block 1104 is fixedly connected to the right side of the sealing block 1103. 104. A sliding block 1104 is provided to prevent the threaded block 1102 from rotating, thereby keeping the threaded block 1102 in a reciprocating motion. A sliding rod 1105 is slidably connected inside the sliding block 1104. The bottom of the sliding rod 1105 is fixedly connected to the inside of the drainage device 300. A gas collection port 1106 is fixedly connected to the bottom of the gas outlet pipe 700. An intermittent exhaust component 1100 is provided. When the defoamer comes into contact with the foam, a certain reaction time is required. At this time, the foam breaks, releasing the internal natural gas to the outside, causing the sealing block 1103 to seal the gas collection port 1106, thereby increasing the drainage efficiency of the drainage device 300 and improving the overall working efficiency of the equipment.

[0025] In use, based on Embodiment 1 and Embodiment 2, when foam enters the drainage device 300, the defoamer comes into contact with the foam. Simultaneously, due to the continuous rotation of the rotating shaft 901, the reciprocating screw 1101 rotates with the rotating shaft 901, causing the threaded block 1102 to move up and down vertically, the sealing block 1103 to move up and down, and the sliding block 1104 to move up and down along the sliding rod 1105. After the defoamer comes into contact with the foam, a certain reaction time is required. At this time, the foam breaks, releasing the internal natural gas to the outside, and the sealing block 1103 seals the gas collection port 1106, thereby increasing the drainage efficiency of the drainage device 300 and improving the overall working efficiency of the equipment.

[0026] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A drainage gas extraction device for natural gas extraction, characterized in that, include: The ground surface, with a mining opening fixedly connected inside, and the top of the mining opening fixedly connected to a drainage device via an air intake pipe; The drainage device has a rotating shaft movably connected internally. A motor is fixedly connected to the top of the rotating shaft 1, and a gear is fixedly connected to the outside of the rotating shaft 1. The anti-clogging device has a rotating shaft 2 fixedly connected to the bottom, and a gear 2 is fixedly connected to the bottom of the rotating shaft 2. The gear 2 meshes with the gear 1. A turntable is fixedly connected to the bottom of the rotating shaft 1. The turntable is slidably connected to a slider through a groove on its surface. A spring is fixedly connected between the bottom of the slider and the bottom of the groove. The rear side of the slider is fixedly connected to a 6-point pipe. The top of the 6-point pipe is fixedly connected to a defoamer inlet pipe. A movable joint is movably connected to the top of the defoamer inlet pipe. The bottom of the slider is movably connected to a rotating plate through a movable part.

2. The drainage gas extraction equipment for natural gas extraction according to claim 1, characterized in that: The transmission component includes a discharge pipe, an L-shaped push rod, a fixed plate, and a guide groove. The bottom of the slider is fixedly connected to the discharge pipe, which is connected to the six-point pipe through the slider. The bottom of the slider is fixedly connected to the L-shaped push rod, and the bottom of the turntable is fixedly connected to the fixed plate. The fixed plate is movably connected to the turntable through a rotating shaft. Multiple guide grooves are formed on the inner surface of the turntable.

3. The drainage gas extraction equipment for natural gas extraction according to claim 1, characterized in that: The top of the ground is fixedly connected to the bottom of the drainage equipment. A foaming agent additive is fixedly connected to the top of the mining opening. A movable foaming device is movably connected inside the drainage equipment. An air outlet pipe is fixedly connected to the top of the drainage equipment. An anti-clogging device is movably connected to the bottom of the air inlet pipe. An anti-foaming agent throttling component is movably connected to the outside of the discharge pipe. An intermittent exhaust component is movably connected to the outside of the rotating shaft.

4. A drainage gas extraction device for natural gas extraction according to claim 1, characterized in that: The number of chutes is six, and each chute is circumferentially distributed about the center of the turntable. The number of sliders is six, the number of springs is six, the number of discharge pipes is six, the number of L-shaped push rods is six, the number of fixed plates is twelve, and every two fixed plates form a group. The number of rotating plates is six, and the number of guide channels is twenty-four, and every two guide channels form a group.

5. A drainage gas extraction device for natural gas extraction according to claim 3, characterized in that: The defoamer throttling assembly includes a push block 1, a spring 2, a hydraulic block 1, a hose, a fixing plate 2, a hydraulic block 2, a push block 2, a valve, and a valve handle. A hydraulic block 1 is fixedly connected to the front side of the chute, and a push block 1 is movably connected to the rear side of the hydraulic block 1. A spring 2 is fixedly connected between the push block 1 and the hydraulic block 1. A front side of the hydraulic block 1 is fixedly connected to one end of the hose, and the other end of the hose is fixedly connected to the top of the hydraulic block 2. A fixing plate 2 is fixedly connected to the outer side of the discharge pipe, and a hydraulic block 2 is fixedly connected to the bottom of the fixing plate 2. A push block 2 is movably connected to the bottom of the hydraulic block 2. A valve handle is fixedly connected to the front side of the push block 2. A valve is movably connected to the outer side of the discharge pipe, and a valve handle is fixedly connected to the outer side of the valve.

6. A drainage gas extraction device for natural gas extraction according to claim 5, characterized in that: The number of push blocks 1 is six, the number of springs 2 is six, the number of hydraulic blocks 1 is six, the number of hoses is six, the number of fixing plates 2 is six, the number of hydraulic blocks 2 is six, the number of push blocks 2 is six, the number of valves is six, and the number of valve handles is six.

7. A drainage gas extraction device for natural gas extraction according to claim 5, characterized in that: The turntable is internally permeated and fixedly connected with a flexible tube.

8. A drainage gas extraction device for natural gas extraction according to claim 5, characterized in that: The intermittent exhaust assembly includes a reciprocating screw, a threaded block, a sealing block, a sliding block, a slide rod, and an air collection port. The reciprocating screw is fixedly connected to the outer side of the rotating shaft. The threaded block is threadedly connected to the outer side of the reciprocating screw. The sealing block is fixedly connected to the right side of the threaded block. The sliding block is fixedly connected to the right side of the sealing block. The slide rod is slidably connected to the inside of the sliding block. The bottom of the slide rod is fixedly connected to the inside of the drainage device. The air collection port is fixedly connected to the bottom of the exhaust pipe.

9. A drainage gas extraction device for natural gas extraction according to claim 8, characterized in that: The bottom of the reciprocating lead screw is at a higher level than the top of the gear.

10. A drainage gas extraction device for natural gas extraction according to claim 8, characterized in that: The size of the sealing block is the same as the size of the gas collection port.

Images