A natural gas purification and separation system

Abstract

The present invention belongs to the technical field of gas separation and purification, and specifically is a natural gas purification and separation system, comprising a tower body, a separation chamber and a spray box, wherein a rotating shaft is provided in the middle of the separation chamber, and a spiral blade is fixedly connected to the surface of the rotating shaft; a funnel-shaped partition is fixedly connected to the lower end of the separation chamber, and evenly distributed air holes are opened in the partition, and the vertical section of the air holes is "L"-shaped; a ring-shaped spray box is provided on the top of the tower body; evenly distributed guide plates are fixedly connected to the inner wall of the tower body and the side wall of the separation chamber, and the guide plates on the inner wall of the tower body and the guide plates on the side wall of the separation chamber are relatively staggered, and the guide plates are tilted downward; micropores are opened on the surface of the guide plates; the present invention can realize the integration of dust removal, acid removal and dehydration of natural gas, and the guide plates and the absorbent cotton belts are driven to vibrate by the spray liquid and the rising natural gas to clean the guide plates.

Description

Technical Field

[0001] The invention belongs to the technical field of gas separation and purification, in particular to a natural gas purification and separation system. Background Art

[0002] Natural gas is recognized as a high-quality and efficient energy source in the world. It has a series of advantages such as clean, environmentally friendly, and large reserves. It has high calorific value, is easy to use, burns completely and cleanly, and is cheap. It is also a valuable chemical raw material that can produce nearly a thousand chemical products. With the development of my country's industry, the improvement of people's living standards, and the need for environmental protection, natural gas, as a clean energy and high-quality chemical raw material, is playing an increasingly important role in the development of the national economy and the improvement of air quality, environmental protection, and energy structure.

[0003] At present, the natural gas extracted from mineral deposits is a mixture of hydrocarbons with very complex components. Most of the natural gas contains sand, liquid water, H2S, CO2 and organic sulfides. When H2S, CO2 and other gas components are dissolved in water, they will generate acid or acid solution, causing serious corrosion to gas pipelines and equipment. Therefore, natural gas generally needs to be subjected to multiple treatments such as dust removal, deacidification and dehydration before use, which makes the natural gas processing process complicated, the equipment is numerous, the floor space is huge, and the maintenance and operation costs are increased. In addition, in the prior art, absorption towers are generally used for desulfurization and deacidification of natural gas. When the absorption tower purifies the natural gas, impurities are easily accumulated in the purification tower, which is not convenient for cleaning, causing pollution to the inside of the purification tower and increasing the cost of repairing and replacing the components inside the tower body. Summary of the invention

[0004] In order to make up for the shortcomings of the prior art and solve the problems that the prior art natural gas processing process is complicated, the equipment is numerous, the floor space is huge, and the maintenance and operation costs are increased; when the natural gas is desulfurized and deacidified, an absorption tower is used. When the absorption tower purifies the natural gas, impurities are easily accumulated in the purification tower, which is inconvenient to clean and causes pollution to the inside of the purification tower. The present invention proposes a natural gas purification and separation system.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a natural gas purification and separation system described in the present invention comprises a tower body, a separation chamber and a spray box, the tower body is a cylindrical hollow structure, a separation chamber is fixedly connected at the center of the top of the tower body, a rotating shaft is provided in the middle of the separation chamber, the upper end of the rotating shaft passes through the inner wall of the tower body and is fixedly connected to the output shaft of the motor, and the tower body, the separation chamber and the rotating shaft are coaxially designed; a spiral blade is fixedly connected to the surface of the rotating shaft, and the spiral blade extends to the top of the tower body, an air inlet is provided at the top of the tower body, and a discharge port is provided at the center of the bottom of the tower body; a funnel-shaped partition is fixedly connected to the lower end of the separation chamber, and evenly distributed air holes are opened in the partition, and the vertical cross-section of the air hole is "L"-shaped, and one end of the air hole is designed to be inclined downward from the middle of the partition; a liquid outlet is provided on one side of the tower body at the lower end of the partition. pipe, a liquid level valve is provided on the liquid outlet pipe; a ring-shaped spray box is provided on the top of the tower body, the spray box is externally connected to a water pump, and evenly distributed spray heads are provided below the spray box; evenly distributed guide plates are fixedly connected to the inner wall of the tower body and the side wall of the separation bin, the guide plates on the inner wall of the tower body and the guide plates on the side wall of the separation bin are relatively staggered, the guide plates are located between the spray box and the partition, the guide plates are ring-shaped in design, the guide plates are tilted downward, and the distance between each pair of guide plates decreases from top to bottom; the guide plates are made of elastic metal material, micropores are provided on the surface of the guide plates, and evenly distributed absorbent cotton belts are fixedly connected below the opposite ends of each pair of guide plates, and the absorbent cotton belts are woven from aluminum silicate cotton threads; an exhaust pipe is provided on one side of the upper end of the tower body, and a demister is provided at the connection between the exhaust pipe and the tower body;

[0006] During operation, the extracted natural gas is introduced into the separation chamber from the air inlet, and the motor is started. The motor drives the rotating shaft to rotate, and the rotating shaft drives the spiral blades to rotate. The spiral blades drive the natural gas to flow downward in a spiral. The liquid and solid particles contained in the natural gas fall to the bottom of the tower body under the action of centrifugal force, thereby achieving dust and liquid removal of the natural gas. After leaving the separation chamber, the natural gas enters the space above the partition through the vent hole; at the same time, the spray box sprays the spray liquid downward. Since the vertical section of the vent hole is designed in an "L" shape, the spray liquid sprayed from the spray box can be prevented from entering the space below the partition through the vent hole. When the spray liquid falls onto the guide plate, the guide plate guides and collects the spray liquid, so that the spray liquid converges from the circumference to the center along the surface of the guide plate and flows to the absorbent cotton belt, thereby increasing the flow path and residence time of the spray liquid, preventing the spray liquid from spraying directly downward and the short contact reaction time with natural gas, effectively improving the reaction time and reaction efficiency of the spray liquid and natural gas, and enhancing the deacidification effect; and because aluminum silicate wool is low in cost and has excellent chemical stability, it can reduce damage to the device when treating some corrosive chemicals and increase its service life. Reduce production costs and improve economic benefits; at the same time, because the guide plate is made of elastic rubber material, the spray liquid intermittently hits the guide plate when dripping downward, causing the guide plate to vibrate, thereby shaking off the impurities adhering to the surface of the guide plate, improving the cleaning effect of the guide plate and increasing the service life of the guide plate. At the same time, the rotating shaft drives the spiral blade to move, so that the natural gas moves downward with the rotation of the spiral blade. The spiral blade gives the natural gas a greater power, so that the natural gas has a greater speed when it leaves the separation chamber and rises. The rotation of the spiral blade drives the gas to form a uniform The gas is sprayed on the ground, and then the gas intermittently impacts the guide plate, further increasing the vibration frequency of the guide plate and improving the cleaning effect of impurities. The present invention can realize the integration of dust removal, deacidification and dehydration of natural gas by arranging a separation bin, spiral blades and guide plates, reducing the equipment installation and connection time, reducing the equipment installation complexity, reducing the floor space and reducing energy consumption. At the same time, the spray liquid and the rising natural gas drive the guide plate and the absorbent cotton belt to vibrate, thereby cleaning the guide plate and preventing impurities from being generated and adhering to the surface of the guide plate, thereby increasing the service life of the guide plate.

[0007] Preferably, a piston plate with an annular design is slidably connected in the spray box, a uniformly arranged first elastic member is fixedly connected between the lower surface of the piston plate and the inner wall of the spray box, an annular cavity is provided in the piston plate, and uniformly distributed through holes are provided on the upper and lower surfaces of the piston plate, and the through holes on the upper surface of the piston plate and the through holes on the lower surface are staggered; sealing balls are provided below the through holes on the upper surface of the piston plate, the sealing balls are located in the annular cavity, the diameter of the sealing balls is larger than the diameter of the through holes, and uniformly distributed second elastic members are fixedly connected between the sealing balls and the inner wall of the upper end of the piston plate; in the initial state , the sealing ball seals the through hole above the piston plate under the pulling force of the second elastic member; a first connecting ring is fixedly connected to the lower surface of the piston plate, a second connecting ring is arranged below the first connecting ring, and a buffer plate with an arc-shaped vertical cross-section is fixedly connected below the second connecting ring; the piston plate and the first connecting ring are both sealingly and slidingly connected to the spray box; the buffer plate, the first connecting ring, the second connecting ring and the piston plate are all made of lightweight materials; the piston plate is spliced ​​by a plurality of fan-shaped plates, and the fan-shaped plates are provided with arc-shaped grooves and evenly distributed through holes, so that the fan-shaped plates are spliced ​​to form the piston plate and the annular cavity;

[0008] During operation, the rotation of the spiral blades drives the gas to spray upward in strands evenly from different angles at the bottom of the separation chamber. The gas above the partition rises and impacts the buffer plate. When the force exerted by the gas on the buffer plate is greater than the force exerted by the first elastic member on the piston plate and the gravity of the buffer plate, the first connecting ring, the second connecting ring and the piston plate itself, the gas impact drives the buffer plate, the first connecting ring, the second connecting ring and the piston plate to move up. The movement of the piston plate reduces the space above the piston plate and increases the pressure. The sealing ball moves downward under the pressure of the piston plate, and the through holes on the upper surface of the piston plate open, and the liquid enters the space below the piston plate through the through holes on the piston plate. At the same time, since the buffer plate is designed to be arc-shaped, the natural gas that impacts the buffer plate quickly diffuses from the middle of the buffer plate to the periphery, and the force exerted by the natural gas on the buffer plate is reduced. The force exerted by the natural gas on the buffer plate is less than the force exerted by the first elastic member on the piston plate and the gravity of the buffer plate, the first connecting ring, the second connecting ring and the piston plate itself When the gravity of the piston plate is large, the first elastic member pulls the piston plate downward. When the piston plate moves downward, the space below the piston plate decreases, the pressure increases, and an upward force is applied to the sealing ball, and the pulling force of the second elastic member on the sealing ball causes the sealing ball to move upward to seal the through hole on the upper surface of the piston plate; when the piston plate moves downward, the liquid below the piston plate is squeezed to be sprayed from the spray head, so that the spray amount of the spray liquid can be adjusted according to the natural gas intake. When the natural gas intake is large, the force applied by the natural gas to the buffer plate is large, which drives the buffer plate and the piston plate to move up a large distance, and the space below the piston plate enters more liquid, so that when the piston plate moves downward, more spray liquid is squeezed and sprayed, and the spray amount of the spray liquid is adjusted according to the air intake, thereby improving resource utilization and deacidification effect; at the same time, when the piston plate moves downward, the space above the piston plate increases, the pressure decreases, and suction is generated on the spray liquid outside the tower body, thereby accelerating the spray liquid outside the tower body to enter the spray box, reducing the energy consumption of the water pump.

[0009] Preferably, a groove is provided on the lower surface of the first connecting ring, and the vertical section of the upper end of the second connecting ring is of "T" shape design. The upper end of the second connecting ring is rotatably connected in the groove, and uniformly distributed balls are provided between the lower surface of the second connecting ring and the inner wall of the groove; the second connecting ring is fixedly connected with uniformly distributed rotating blades on one side of the inner wall of the tower body, and the rotating blades and the second connecting ring are designed as an impeller as a whole; when working, the natural gas rises from the lower end of the tower body to the top, and drives the rotating blades and the second connecting ring to rotate, and the rotation of the second connecting ring drives the buffer plate to rotate. When the buffer plate rotates, the liquid absorbent falling to the surface of the buffer plate is evenly dispersed to the circumference under the action of centrifugal force, thereby improving the deacidification reaction efficiency; at the same time, the rotation of the rotating blades and the second connecting ring can accelerate the flow of natural gas at the top of the tower body, so that the natural gas on the left side of the tower body is stirred and turned to the exhaust pipe, to prevent the gas discharge speed and volume on the left and right sides of the tower body from being different, resulting in different natural gas concentrations on both sides of the tower body, uneven distribution, and reduced deacidification effect; and the pressure of the top gas is reduced after being discharged, and the bottom gas is easier to rise, thereby improving the deacidification reaction rate.

[0010] Preferably, one side of the rotating shaft is fixedly connected to a fixed plate, and a magnet block is provided on the side opposite to the fixed plate and the second connecting ring. The magnet block on the fixed plate is arranged corresponding to the magnet block on the second connecting ring, and the magnet block on the fixed plate and the magnet block on the second connecting ring attract each other. During operation, the rotating shaft drives the fixed plate to rotate, and since the magnet block on the fixed plate and the magnet block on the second connecting ring attract each other, the fixed plate drives the second connecting ring to rotate when it rotates, thereby further improving the rotation speed of the second connecting ring and the rotating blades, accelerating the gas flow at the top of the tower body, and improving the deacidification reaction efficiency.

[0011] Preferably, the upper surface of the guide plate is provided with uniformly distributed vibration balls, the diameter of the vibration balls is larger than the diameter of the micropores, one end of the vibration balls is fixedly connected to an elastic rope, and one end of the elastic rope passes through the micropores and is fixedly connected to the side wall of the separation bin; during operation, the guide plate is intermittently impacted by the spray liquid and the rising natural gas to drive the guide vibration, so as to prevent the solid reactants from adhering to the surface of the guide plate during deacidification, thereby affecting the service life of the guide plate; at the same time, by arranging the elastic rope and the vibration ball, when the guide plate drives the vibration ball to deflect upward, the elastic rope is in a stretched state, and when the natural gas rises and leaves the space between the micropores and the guide plate, the elastic rope pulls the guide plate and the vibration ball back to the initial state under the action of elastic force, thereby further improving the vibration frequency of the guide plate; at the same time, the elastic rope and the vibration ball limit the guide plate, so as to prevent the guide plate from vibrating and deforming too much and affecting the service life of the guide plate.

[0012] Preferably, the guide plate is provided with uniformly distributed cavities inside, and the micropores are connected to the corresponding cavities; during operation, since the guide plate is made of elastic material, when the guide plate drives the vibrating ball to deflect upward, the elastic rope is pulled in a stretched state, and the pull rope applies tension to the vibrating ball so that the vibrating ball squeezes the gas in the cavity or sprays the spray liquid out from the micropores to impact the surface of the guide plate, thereby further accelerating the falling of materials on the surface of the guide plate, preventing fixed reactants from sticking to the surface of the guide plate during deacidification, and improving the service life of the guide plate; when the natural gas leaves the space between the micropores and each pair of guide plates, the elastic rope pulls the guide plate and the vibrating ball back to the initial state under the action of elastic force, the space in the cavity increases, the pressure decreases, and the gas or liquid absorbent is absorbed from the outside of the guide plate to return to the initial state.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. The natural gas purification and separation system described in the present invention can realize the integration of dust removal, deacidification and dehydration of natural gas by setting a separation bin, spiral blades and guide plates, thereby reducing the equipment installation and connection time, reducing the equipment installation complexity, reducing the floor space and reducing energy consumption; at the same time, the spray liquid and the rising natural gas drive the guide plate and the absorbent cotton belt to vibrate, thereby cleaning the guide plate and preventing impurities from being generated and adhering to the surface of the guide plate, thereby increasing the service life of the guide plate.

[0015] 2. The natural gas purification and separation system described in the present invention is equipped with a piston plate, a sealing ball and a buffer plate. When a large amount of natural gas is introduced, the natural gas exerts a large force on the buffer plate, driving the buffer plate and the piston plate to move up a large distance. More liquid enters the space below the piston plate, so that more spray liquid is squeezed out when the piston plate moves downward, thereby realizing adjustment of the spray amount of the spray liquid according to the air intake, thereby improving resource utilization and deacidification effect.

[0016] 3. A natural gas purification and separation system described in the present invention is provided with a vibrating ball, an elastic rope and a cavity. When the guide plate drives the vibrating ball to deflect upward, the elastic rope is pulled in a stretched state. The pull rope applies a pulling force to the vibrating ball so that the vibrating ball squeezes the gas in the cavity or sprays the spray liquid out from the micropores to impact the surface of the guide plate, thereby further accelerating the falling of the material on the surface of the guide plate, preventing the fixed reactants from sticking to the surface of the guide plate during deacidification, and improving the service life of the guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 is a stereogram of the present invention;

[0019] Figure 2 yes Figure 1 A partial enlarged view of the middle part;

[0020] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle;

[0021] Figure 4 yes Figure 1 A partial enlarged view of point C in the middle;

[0022] In the figure: tower body 1, discharge port 11, partition 12, vent 13, liquid outlet pipe 14, exhaust pipe 15, separation chamber 2, rotating shaft 21, spiral blade 22, air inlet 23, fixed plate 24, spray box 3, spray head 31, piston plate 32, first elastic member 33, annular cavity 34, through hole 35, sealing ball 36, second elastic member 37, guide plate 4, micropore 41, absorbent cotton belt 42, vibrating ball 43, elastic rope 44, cavity 45, first connecting ring 5, second connecting ring 51, buffer plate 52, groove 53, ball 54, rotating blade 55, magnet block 56. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] like Figures 1 to 4 As shown, a natural gas purification and separation system described in the present invention comprises a tower body 1, a separation chamber 2 and a spray box 3, wherein the tower body 1 is a cylindrical hollow structure, a separation chamber 2 is fixedly connected at the center of the top of the tower body 1, a rotating shaft 21 is provided in the middle of the separation chamber 2, the upper end of the rotating shaft 21 passes through the inner wall of the tower body 1 and is fixedly connected to the output shaft of the motor, and the tower body 1, the separation chamber 2 and the rotating shaft 21 are coaxially designed; a spiral blade 22 is fixedly connected to the surface of the rotating shaft 21, and the spiral blade 22 extends to the top of the tower body 1, an air inlet 23 is provided at the top of the tower body 1, and a discharge port 11 is provided at the center of the bottom of the tower body 1; a funnel-shaped partition 12 is fixedly connected to the lower end of the separation chamber 2, and evenly distributed air holes 13 are opened in the partition 12, and the vertical section of the air holes 13 is "L"-shaped, and one end of the air holes 13 is designed to be inclined downward from the middle of the partition 12; a liquid outlet pipe 14 is provided on one side of the tower body 1 at the lower end of the partition 12, and the liquid outlet pipe 14 is provided on the lower end of the partition 12. A liquid level valve is provided on the liquid outlet pipe 14; a ring-shaped spray box 3 is provided on the top of the tower body 1, and a water pump is externally connected to the spray box 3. Evenly distributed spray heads 31 are provided below the spray box 3; evenly distributed guide plates 4 are fixedly connected to the inner wall of the tower body 1 and the side wall of the separation chamber 2. The guide plates 4 on the inner wall of the tower body 1 and the guide plates 4 on the side wall of the separation chamber 2 are relatively staggered. The guide plates 4 are located between the spray box 3 and the partition 12, and the guide plates 4 are ring-shaped. The guide plates 4 are designed to be tilted downward, and the distance between each pair of guide plates 4 decreases from top to bottom; the guide plates 4 are made of elastic metal material, and micropores 41 are provided on the surface of the guide plates 4. A uniformly distributed water-absorbing cotton belt 42 is fixedly connected below the opposite ends of each pair of guide plates 4, and the water-absorbing cotton belt 42 is woven from aluminum silicate cotton thread; an exhaust pipe 15 is provided on one side of the upper end of the tower body 1, and a demister is provided at the connection between the exhaust pipe 15 and the tower body 1;

[0025] During operation, the extracted natural gas is introduced into the separation chamber 2 from the air inlet 23, and the motor is started. The motor drives the rotating shaft 21 to rotate, and the rotating shaft 21 drives the spiral blades 22 to rotate. The spiral blades 22 drive the natural gas to flow downward in a spiral circle. The liquid and solid particles contained in the natural gas fall to the bottom of the tower body 1 under the action of centrifugal force, so as to remove dust and liquid from the natural gas. After leaving the separation chamber 2, the natural gas enters the space above the partition 12 through the vent 13; at the same time, the spray box 3 sprays the spray liquid downward. Since the vertical section of the vent 13 is designed as an "L" shape, the spray liquid sprayed from the spray box 3 can be prevented from passing through the vent 13. Enter the space below the partition 12; when the spray liquid falls onto the guide plate 4, the guide plate 4 guides and collects the spray liquid, so that the spray liquid converges from the circumference to the center along the surface of the guide plate 4 and flows to the absorbent cotton belt 42, thereby increasing the flow path and residence time of the spray liquid, preventing the spray liquid from spraying directly downward and the contact reaction time with natural gas is too short, effectively improving the reaction time and reaction efficiency of the spray liquid and natural gas, and enhancing the deacidification effect; and because aluminum silicate wool is low in cost and has excellent chemical stability, when treating some corrosive chemicals, it can reduce the damage to the device and increase its service life. The production cost is reduced and the economic benefit is improved. At the same time, since the guide plate 4 is made of elastic rubber material, the spray liquid intermittently hits the guide plate 4 when dripping downward, so that the guide plate 4 vibrates, thereby shaking off the impurities adhering to the surface of the guide plate 4, improving the cleaning effect of the guide plate 4 and increasing the service life of the guide plate 4. At the same time, the rotating shaft 21 drives the spiral blade 22 to move, so that the natural gas moves downward with the rotation of the spiral blade 22. The spiral blade 22 gives the natural gas a greater power, so that the natural gas has a greater speed when leaving the separation chamber 2, and the rotation of the spiral blade 22 drives the gas from the bottom of the separation chamber 2 at different angles. The gas is evenly sprayed in strands, so that the gas intermittently impacts the guide plate 4, further increasing the vibration frequency of the guide plate 4 and improving the cleaning effect of impurities. The present invention can realize the integration of dust removal, deacidification and dehydration of natural gas by setting the separation bin 2, the spiral blade 22 and the guide plate 4, reducing the equipment installation and connection time, reducing the equipment installation complexity, reducing the floor space and reducing energy consumption. At the same time, the spray liquid and the rising natural gas drive the guide plate 4 and the absorbent cotton belt 42 to vibrate, thereby cleaning the guide plate 4 and preventing impurities from being generated and adhering to the surface of the guide plate 4, thereby improving the service life of the guide plate 4.

[0026] As an embodiment of the present invention, a piston plate 32 of an annular design is slidably connected in the spray box 3, and a uniformly arranged first elastic member 33 is fixedly connected between the lower surface of the piston plate 32 and the inner wall of the spray box 3, and an annular cavity 34 is provided in the piston plate 32, and uniformly distributed through holes 35 are provided on the upper and lower surfaces of the piston plate 32, and the through holes 35 on the upper surface of the piston plate 32 are staggered with the through holes 35 on the lower surface; a sealing ball 36 is provided below the through holes 35 on the upper surface of the piston plate 32, and the sealing ball 36 is located in the annular cavity 34, and the diameter of the sealing ball 36 is larger than the diameter of the through hole 35, and a uniformly distributed second elastic member 33 is fixedly connected between the sealing ball 36 and the inner wall of the upper end of the piston plate 32 7; In the initial state, the sealing ball 36 seals the through hole 35 above the piston plate 32 under the pulling force of the second elastic member 37; the lower surface of the piston plate 32 is fixedly connected with a first connecting ring 5, a second connecting ring 51 is provided below the first connecting ring 5, and a buffer plate 52 with an arc-shaped vertical cross-section is fixedly connected below the second connecting ring 51; the piston plate 32 and the first connecting ring 5 are both sealed and slidably connected to the spray box 3; the buffer plate 52, the first connecting ring 5, the second connecting ring 51 and the piston plate 32 are all made of lightweight materials; the piston plate 32 is spliced ​​by a plurality of fan-shaped plates, and the fan-shaped plates are provided with arc-shaped grooves and evenly distributed through holes 35, so that the fan-shaped plates are spliced ​​to form the piston plate 32 and the annular cavity 34;

[0027] During operation, the spiral blades 22 rotate to drive the gas to spray upward in strands from different angles at the bottom of the separation chamber 2. The gas above the partition 12 rises and impacts the buffer plate 52. When the force exerted by the gas on the buffer plate 52 is greater than the force exerted by the first elastic member 33 on the piston plate 32 and the gravity of the buffer plate 52, the first connecting ring 5, the second connecting ring 51 and the piston plate 32 itself, the gas drives the buffer plate 52, the first connecting ring 5, the second connecting ring 51 and the piston plate 32 to move upward. The upward movement of the piston plate 32 reduces the space above the piston plate 32. The pressure is small, the pressure increases, the sealing ball 36 moves downward under the pressure, the through hole 35 on the upper surface of the piston plate 32 opens, and the liquid enters the space below the piston plate 32 through the through hole 35 on the piston plate 32; at the same time, since the buffer plate 52 is designed to be arc-shaped, the natural gas that impacts the buffer plate 52 quickly diffuses from the middle of the buffer plate 52 to the periphery, and the force exerted by the natural gas on the buffer plate 52 is reduced, so that the force exerted by the natural gas on the buffer plate 52 is smaller than the force exerted by the first elastic member 33 on the piston plate 32 and the buffer plate 52, the first connecting ring 5, and the second connecting ring 5. When the ring 51 and the weight of the piston plate 32 are combined, the first elastic member 33 pulls the piston plate 32 downward. When the piston plate 32 moves downward, the space below the piston plate 32 decreases, the pressure increases, and an upward force is applied to the sealing ball 36. The pulling force of the second elastic member 37 on the sealing ball 36 causes the sealing ball 36 to move upward to seal the through hole 35 on the upper surface of the piston plate 32. When the piston plate 32 moves downward, the liquid below the piston plate 32 is squeezed and sprayed from the spray head 31, so that the spraying amount of the spraying liquid can be adjusted according to the natural gas intake. When the natural gas intake is high, the spraying amount of the spraying liquid can be adjusted according to the natural gas intake. The force exerted by natural gas on the buffer plate 52 is large, which drives the buffer plate 52 and the piston plate 32 to move upward a large distance. The space below the piston plate 32 has more liquid, so that when the piston plate 32 moves downward, more spray liquid is squeezed out and sprayed, so that the spray amount of the spray liquid can be adjusted according to the air intake, thereby improving resource utilization and deacidification effect; at the same time, when the piston plate 32 moves downward, the space above the piston plate 32 increases, the pressure decreases, and suction is generated on the spray liquid outside the tower body 1, thereby accelerating the spray liquid outside the tower body 1 to enter the spray box 3, reducing the energy consumption of the water pump.

[0028] As an embodiment of the present invention, a groove 53 is provided on the lower surface of the first connecting ring 5, and the vertical section of the upper end of the second connecting ring 51 is designed in a "T" shape. The upper end of the second connecting ring 51 is rotatably connected in the groove 53, and evenly distributed balls 54 are provided between the lower surface of the second connecting ring 51 and the inner wall of the groove 53; the second connecting ring 51 is fixedly connected with evenly distributed rotating blades 55 on one side relative to the inner wall of the tower body 1, and the rotating blades 55 and the second connecting ring 51 are designed in an impeller shape as a whole; when working, natural gas rises from the lower end of the tower body 1 to the top, and drives the rotating blades and the second connecting ring 51 to rotate, The rotation of the second connecting ring 51 drives the buffer plate 52 to rotate. When the buffer plate 52 rotates, the liquid absorbent dropped onto the surface of the buffer plate 52 is evenly dispersed around the circle under the action of centrifugal force, thereby improving the deacidification reaction efficiency; at the same time, the rotation of the rotating blades 55 and the second connecting ring 51 can accelerate the flow of natural gas at the top of the tower body 1, so that the natural gas on the left side of the tower body 1 is stirred and turned to the exhaust pipe 15, to prevent the gas discharge speed and volume on the left and right sides of the tower body 1 from being different, resulting in different natural gas concentrations on both sides of the tower body 1, uneven distribution, and reduced deacidification effect; and the pressure of the top gas is reduced after being discharged, and the bottom gas is more likely to rise, thereby improving the deacidification reaction rate.

[0029] As an embodiment of the present invention, one side of the rotating shaft 21 is fixedly connected to the fixed plate 24, and the fixed plate 24 and the second connecting ring 51 are provided with a magnet block 56 on the opposite side. The magnet block 56 on the fixed plate 24 is correspondingly arranged with the magnet block 56 on the second connecting ring 51, and the magnet block 56 on the fixed plate 24 and the magnet block 56 on the second connecting ring 51 attract each other; when working, the rotating shaft 21 drives the fixed plate 24 to rotate, and since the magnet block 56 on the fixed plate 24 and the magnet block 56 on the second connecting ring 51 attract each other, the fixed plate 24 drives the second connecting ring 51 to rotate when it rotates, thereby further improving the rotation speed of the second connecting ring 51 and the rotating blade 55, accelerating the gas flow at the top of the tower body 1, and improving the deacidification reaction efficiency.

[0030] As an embodiment of the present invention, the upper surface of the guide plate 4 is provided with uniformly distributed vibration balls 43, the diameter of the vibration balls 43 is larger than the diameter of the micropores 41, one end of the vibration ball 43 is fixedly connected to an elastic rope 44, and one end of the elastic rope 44 passes through the micropores 41 and is fixedly connected to the side wall of the separation chamber 2; when working, the guide plate 4 is driven to vibrate by intermittent impact of the spray liquid and the rising natural gas, so as to prevent the solid reactants from adhering to the surface of the guide plate 4 during deacidification, thereby affecting the service life of the guide plate 4; at the same time, By setting the elastic rope 44 and the vibrating ball 43, when the guide plate 4 drives the vibrating ball 43 to deflect upward, the elastic rope 44 is in a stretched state. When the natural gas rises and leaves the space between the micropores 41 and the guide plate 4, the elastic rope 44 pulls the guide plate 4 and the vibrating ball 43 back to the initial state under the action of elastic force, thereby further improving the vibration frequency of the guide plate 4; at the same time, the elastic rope 44 and the vibrating ball 43 play a limiting role on the guide plate 4, thereby preventing the guide plate 4 from vibrating and deforming too much, thereby affecting the service life of the guide plate 4.

[0031] As an embodiment of the present invention, the guide plate 4 is provided with uniformly distributed cavities 45, and the micropores 41 are all connected to the corresponding cavities 45; during operation, since the guide plate 4 is made of elastic material, when the guide plate 4 drives the vibration ball 43 to deflect upward, the elastic rope 44 is pulled in a stretched state, and the rope applies a pulling force to the vibration ball 43 so that the vibration ball 43 squeezes the gas in the cavity 45 or the spray liquid is ejected from the micropores 41 to impact the surface of the guide plate 4, thereby further accelerating the falling of the material on the surface of the guide plate 4, preventing the fixed reactants from adhering to the surface of the guide plate 4 during deacidification, and improving the service life of the guide plate 4; when the natural gas leaves the space between the micropores 41 and each pair of guide plates 4, the elastic rope 44 pulls the guide plate 4 and the vibration ball 43 back to the initial state under the action of the elastic force, the space in the cavity 45 increases, the pressure decreases, and the gas or liquid absorbent is absorbed from the outside of the guide plate 4 to restore to the initial state.

[0032] The specific workflow of the present invention is as follows:

[0033] During operation, the extracted natural gas is introduced into the separation chamber 2 from the air inlet 23, and the motor is started. The motor drives the rotating shaft 21 to rotate, and the rotating shaft 21 drives the spiral blades 22 to rotate. The spiral blades 22 drive the natural gas to flow downward in a spiral circle. The liquid and solid particles contained in the natural gas fall to the bottom of the tower body 1 under the action of centrifugal force, thereby realizing dust and liquid removal of the natural gas. After leaving the separation chamber 2, the natural gas enters the space above the partition 12 through the vent 13; at the same time, the spray box 3 sprays the spray liquid downward. Since the vertical section of the vent 13 is an "L"-shaped design, the spray liquid sprayed from the spray box 3 can be prevented from entering the space below the partition 12 through the vent 13; when the spray liquid falls on the guide plate 4, the guide plate 4 guides and collects the spray liquid, so that the spray liquid converges from the circumference to the center along the surface of the guide plate 4 and flows to the absorbent cotton belt 42, thereby increasing the flow path and residence time of the spray liquid, preventing the spray liquid from spraying directly downward and the contact reaction time with the natural gas from being too short, and effectively improving the spray liquid and natural gas. The reaction time and reaction efficiency are improved, and the deacidification effect is enhanced; and since aluminum silicate wool is low in cost and has excellent chemical stability, when treating some corrosive chemical substances, it can reduce the damage to the device, increase its service life, reduce production costs, and improve economic benefits; at the same time, since the guide plate 4 is made of elastic rubber material, the spray liquid intermittently hits the guide plate 4 when dripping downward, causing the guide plate 4 to vibrate, thereby shaking off the impurities adhering to the surface of the guide plate 4, improving the cleaning effect of the guide plate 4, and increasing the service life of the guide plate 4. At the same time, the rotating shaft 21 drives the spiral blade 22 to move, so that the natural gas moves downward with the rotation of the spiral blade 22. The spiral blade 22 gives the natural gas greater power, so that the natural gas has a greater speed when it leaves the separation chamber 2, and the spiral blade 22 rotates to drive the gas to spray evenly in strands from different angles at the bottom of the separation chamber 2, so that the gas intermittently impacts the guide plate 4, further increasing the vibration frequency of the guide plate 4, and improving the cleaning effect of the impurities;

[0034] At the same time, the gas above the partition 12 rises and impacts the buffer plate 52. When the force exerted by the gas on the buffer plate 52 is greater than the force exerted by the first elastic member 33 on the piston plate 32 and the gravity of the buffer plate 52, the first connecting ring 5, the second connecting ring 51 and the piston plate 32 itself, the gas drives the buffer plate 52, the first connecting ring 5, the second connecting ring 51 and the piston plate 32 to move upward. The upward movement of the piston plate 32 reduces the space above the piston plate 32, increases the pressure, and the sealing ball 36 moves downward under the pressure, and the surface of the piston plate 32 The through hole 35 on the surface is opened, and the liquid enters the space below the piston plate 32 through the through hole 35 on the piston plate 32; at the same time, since the buffer plate 52 is designed to be arc-shaped, the natural gas that impacts the buffer plate 52 quickly diffuses from the middle of the buffer plate 52 to the periphery, and the force exerted by the natural gas on the buffer plate 52 is reduced, so that the force exerted by the natural gas on the buffer plate 52 is less than the force exerted by the first elastic member 33 on the piston plate 32 and the gravity of the buffer plate 52, the first connecting ring 5, the second connecting ring 51 and the piston plate 32 itself. The elastic member 33 pulls the piston plate 32 downward. When the piston plate 32 moves downward, the space below the piston plate 32 decreases, the pressure increases, and an upward force is applied to the sealing ball 36. The pulling force of the second elastic member 37 on the sealing ball 36 causes the sealing ball 36 to move upward to seal the through hole 35 on the upper surface of the piston plate 32. When the piston plate 32 moves downward, the liquid below the piston plate 32 is squeezed and sprayed from the spray head 31, so that the spray amount of the spray liquid can be adjusted according to the natural gas intake. When the natural gas intake is large, the natural gas has an impact on the buffer plate 5. 2. The force applied is large, driving the buffer plate 52 and the piston plate 32 to move upward by a large distance. The space below the piston plate 32 is filled with more liquid, so that when the piston plate 32 moves downward, more spray liquid is squeezed out and sprayed, and the spray amount of the spray liquid is adjusted according to the air intake, thereby improving resource utilization and deacidification effect; at the same time, when the piston plate 32 moves downward, the space above the piston plate 32 increases, the pressure decreases, and suction is generated on the spray liquid outside the tower body 1, thereby accelerating the spray liquid outside the tower body 1 to enter the spray box 3, reducing the energy consumption of the water pump;

[0035] At the same time, the natural gas rises from the lower end of the tower body 1 to the top, and drives the rotating blades and the second connecting ring 51 to rotate. The rotation of the second connecting ring 51 drives the buffer plate 52 to rotate. When the buffer plate 52 rotates, the liquid absorbent falling on the surface of the buffer plate 52 is evenly dispersed around the periphery under the action of centrifugal force, thereby improving the deacidification reaction efficiency; and the rotation of the rotating blades 55 and the second connecting ring 51 can accelerate the flow of natural gas at the top of the tower body 1, so that the natural gas on the left side of the tower body 1 is stirred and turned to the exhaust pipe 15, so as to prevent the gas discharge speed and volume on the left and right sides of the tower body 1 from being different, resulting in the gas on both sides of the tower body 1. The concentration is different and the distribution is uneven, which reduces the deacidification effect; and the pressure of the top gas is reduced after being discharged, and the bottom gas is easier to rise, thereby increasing the deacidification reaction rate; at the same time, the rotating shaft 21 drives the fixed plate 24 to rotate. Since the magnet block 56 on the fixed plate 24 and the magnet block 56 on the second connecting ring 51 attract each other, the fixed plate 24 drives the second connecting ring 51 to rotate when it rotates, thereby further increasing the rotation speed of the second connecting ring 51 and the rotating blade 55, accelerating the gas flow at the top of the tower body 1, and improving the deacidification reaction efficiency; at the same time, by setting the elastic rope 44 and the vibrating ball 43, when the guide plate 4 drives the vibration ball 43 to deflect upward, the elastic rope 44 is in a stretched state. When the natural gas rises and leaves the space between the micropore 41 and the guide plate 4, the elastic rope 44 pulls the guide plate 4 and the vibration ball 43 back to the initial state under the action of elastic force, thereby further improving the vibration frequency of the guide plate 4; at the same time, the elastic rope 44 and the vibration ball 43 play a limiting role on the guide plate 4, preventing the guide plate 4 from vibrating and deforming too much, thereby affecting the service life of the guide plate 4; and when the guide plate 4 drives the vibration ball 43 to deflect upward, the elastic rope 44 is pulled in a stretched state, and the pulling rope has an effect on the vibration ball 43 applies a pulling force so that the vibrating ball 43 squeezes the gas in the cavity 45 or the spray liquid is ejected from the micropores 41 to impact the surface of the guide plate 4, thereby further accelerating the falling of the material on the surface of the guide plate 4, preventing the fixed reactants from adhering to the surface of the guide plate 4 during deacidification, and improving the service life of the guide plate 4; when the natural gas leaves the space between the micropores 41 and each pair of guide plates 4, the elastic rope 44 pulls the guide plate 4 and the vibrating ball 43 back to the initial state under the action of the elastic force, the space in the cavity 45 increases, the pressure decreases, and the gas or liquid absorbent is absorbed from the outside of the guide plate 4 to return to the initial state.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A natural gas purification and separation system, characterized in that: The invention comprises a tower body (1), a separation chamber (2) and a spray box (3); the tower body (1) is a hollow cylindrical structure; a separation chamber (2) is fixedly connected to the center of the top of the tower body (1); a rotating shaft (21) is provided in the middle of the separation chamber (2); the upper end of the rotating shaft (21) passes through the inner wall of the tower body (1) and is fixedly connected to the output shaft of the motor; the tower body (1), the separation chamber (2) and the rotating shaft (21) are coaxially designed; a spiral blade (22) is fixedly connected to the surface of the rotating shaft (21); the spiral blade (22) extends to the top of the tower body (1); The tower body (1) is provided with an air inlet (23) at the top, and a discharge port (11) is provided at the center of the bottom of the tower body (1); a funnel-shaped partition (12) is fixedly connected to the lower end of the separation bin (2), and evenly distributed ventilation holes (13) are opened in the partition (12), and the vertical cross-section of the ventilation holes (13) is designed to be "L"-shaped, and one end of the ventilation holes (13) is designed to be inclined downward from the middle of the partition (12); a liquid outlet pipe (14) is provided on one side of the tower body (1) at the lower end of the partition (12), and a liquid outlet pipe (14) is provided on the liquid outlet pipe (14). A liquid level valve is provided; a spray box (3) of an annular design is provided on the top of the tower body (1); a water pump is externally connected to the spray box (3); and evenly distributed spray heads (31) are provided below the spray box (3); evenly distributed guide plates (4) are fixedly connected to the inner wall of the tower body (1) and the side wall of the separation chamber (2); the guide plates (4) on the inner wall of the tower body (1) and the guide plates (4) on the side wall of the separation chamber (2) are arranged in a staggered manner relative to each other; the guide plates (4) are located between the spray box (3) and the partition (12); and the guide plates (4) are annular. The tower body (1) is designed to be slanted downward, and the distance between each pair of the guide plates (4) decreases from top to bottom; the guide plates (4) are made of elastic metal material, and micropores (41) are provided on the surface of the guide plates (4); uniformly distributed water-absorbing cotton belts (42) are fixedly connected below the ends of each pair of guide plates (4) facing each other, and the water-absorbing cotton belts (42) are woven from aluminum silicate cotton threads; an exhaust pipe (15) is provided on one side of the upper end of the tower body (1), and a demister is provided at the connection between the exhaust pipe (15) and the tower body (1).

2. A natural gas purification and separation system according to claim 1, characterized in that: A piston plate (32) of an annular design is slidably connected in the spray box (3); a uniformly arranged first elastic member (33) is fixedly connected between the lower surface of the piston plate (32) and the inner wall of the spray box (3); an annular cavity (34) is provided in the piston plate (32); uniformly distributed through holes (35) are provided on the upper and lower surfaces of the piston plate (32); the through holes (35) on the upper surface of the piston plate (32) and the through holes (35) on the lower surface are arranged alternately; a sealing ball (36) is provided below the through holes (35) on the upper surface of the piston plate (32); the sealing ball (36) is located in the annular cavity (34); the diameter of the sealing ball (36) is larger than the diameter of the through hole (35); the sealing ball (36) is provided with a plurality of sealing balls (36) disposed on the upper surface of the piston plate (32); the sealing ball (36) is provided with a plurality of sealing balls (36) disposed on the lower ... lower surface of the piston plate (32); the sealing ball (36) is provided with a plurality of sealing balls (36) disposed on the lower surface of the piston plate (32); the sealing ball (36) is provided with a plurality of sealing balls (36) disposed on the lower surface of the piston plate (32); the sealing ball (36) A uniformly distributed second elastic member (37) is fixedly connected between the ball (36) and the inner wall of the upper end of the piston plate (32); in the initial state, the sealing ball 36 seals the through hole 35 above the piston plate 32 under the pulling force of the second elastic member 37; a first connecting ring (5) is fixedly connected to the lower surface of the piston plate (32), a second connecting ring (51) is provided below the first connecting ring (5), and a buffer plate (52) with an arc-shaped vertical cross-section is fixedly connected below the second connecting ring (51); the piston plate (32) and the first connecting ring (5) are both sealingly and slidably connected to the spray box (3); the buffer plate (52), the first connecting ring (5), the second connecting ring (51) and the piston plate (32) are all made of lightweight materials.

3. A natural gas purification and separation system according to claim 2, characterized in that: A groove (53) is provided on the lower surface of the first connecting ring (5); the vertical section of the upper end of the second connecting ring (51) is designed in a "T" shape; the upper end of the second connecting ring (51) is rotatably connected in the groove (53); uniformly distributed balls (54) are provided between the lower surface of the second connecting ring (51) and the inner wall of the groove (53); the second connecting ring (51) is fixedly connected to a side surface relative to the inner wall of the tower body (1) with uniformly distributed rotating blades (55); the rotating blades (55) and the second connecting ring (51) are designed in an impeller shape as a whole.

4. A natural gas purification and separation system according to claim 3, characterized in that: One side of the rotating shaft (21) is fixedly connected to a fixed plate (24), and a magnet block (56) is provided on one side of the fixed plate (24) opposite to the second connecting ring (51). The magnet block (56) on the fixed plate (24) and the magnet block (56) on the second connecting ring (51) are arranged correspondingly, and the magnet block (56) on the fixed plate (24) and the magnet block (56) on the second connecting ring (51) attract each other.

5. A natural gas purification and separation system according to claim 1, characterized in that: The upper surface of the guide plate (4) is provided with uniformly distributed vibration balls (43), the diameter of the vibration balls (43) being larger than the diameter of the micropores (41), one end of the vibration balls (43) being fixedly connected to an elastic rope (44), and one end of the elastic rope (44) passing through the micropores (41) and being fixedly connected to the side wall of the separation chamber (2).

6. A natural gas purification and separation system according to claim 5, characterized in that: The guide plate (4) is provided with evenly distributed cavities (45) inside, and the micropores (41) are all connected to the corresponding cavities (45).

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