A cyclone coalescing and micro-interface regeneration integrated natural gas liquid-removing and desulfurization device

Abstract

The application relates to a cyclone coalescing and micro-interface regeneration integrated natural gas liquid-removing and desulfurizing device, and relates to the technical field of natural gas purification.The device comprises a desulfurizing tower, a mounting plate and a regeneration tank, one side of the upper end of the mounting plate is fixedly connected with a first extraction pump, one side of the outer wall of the regeneration tank is fixedly connected with a micro-bubble generator, the output end of the first extraction pump is fixedly connected with the bottom end of the desulfurizing tower, and the end, away from the regeneration tank, of the feed pipe is fixedly connected with the input end of the first extraction pump.The device has the following advantages: through the arrangement of the desulfurizing tower, the first extraction pump and the regeneration tank, the rich liquid in the desulfurizing tower is extracted into the regeneration tank through the first extraction pump, the micro-bubble generator on one side of the regeneration tank can extract the rich liquid in the regeneration tank and mix the rich liquid with air, the rich liquid is fully contacted with the micro-bubbles, the micro-bubbles provide a large reaction interface, the desulfurizing agent is reacted with air to realize efficient regeneration, and the efficient regeneration and cyclic utilization of the desulfurizing agent are realized.

Description

Technical Field

[0001] This application relates to the technical field of natural gas purification, and in particular to an integrated natural gas desulfurization and deliquescence device combining cyclone coalescence and micro-interface regeneration. Background Technology

[0002] During the extraction, transportation, and processing of natural gas, the raw gas often contains acidic gases such as liquid water, condensate oil, and hydrogen sulfide. These impurities can corrode pipeline equipment, pollute the environment, and reduce the calorific value of the gas. They must be removed. After long-term use, the desulfurization efficiency of the desulfurizing agent will gradually decrease. After a period of use, the desulfurizing agent needs to be replaced or treated to restore the desulfurization effect.

[0003] However, the operation of the desulfurization tower must be interrupted during the replacement or treatment of the desulfurizing agent, which leads to the interruption of desulfurization operations, thereby reducing the processing efficiency and affecting the continuity and stability of desulfurization operations. Utility Model Content

[0004] The purpose of this application is to provide an integrated natural gas desulfurization and liquid removal device that combines cyclone coalescence and micro-interface regeneration. This device has the advantage of facilitating improved desulfurization efficiency and solves the problem that the operation of the desulfurization tower must be interrupted during the replacement or treatment of the desulfurizing agent, which leads to the interruption of desulfurization operations, thereby reducing processing efficiency and affecting the continuity and stability of desulfurization operations.

[0005] This application provides an integrated natural gas desulfurization and liquid removal device combining cyclone coalescence and micro-interface regeneration, employing the following technical solution: It includes a desulfurization tower, an mounting plate, and a regeneration tank. A first extraction pump is fixedly connected to one side of the upper end of the mounting plate. A microbubble generator is fixedly connected to one side of the outer wall of the regeneration tank. The output and input ends of the microbubble generator both penetrate the regeneration tank. An overflow ring is fixedly connected to the upper end of the regeneration tank. A waste pipe is fixedly connected to one side of the overflow ring. A waste tank is fixedly connected to the end of the waste pipe furthest from the overflow ring. A feed pipe is fixedly connected to one side of the outer wall of the regeneration tank. The output end of the first extraction pump is fixedly connected to the bottom of the desulfurization tower, and the end of the feed pipe furthest from the regeneration tank is fixedly connected to the input end of the first extraction pump.

[0006] By adopting the above technical solution, through the setup of a desulfurization tower, a first extraction pump, and a regeneration tank, the desulfurization tower is connected to the regeneration tank via the first extraction pump. The first extraction pump draws the rich liquid inside the desulfurization tower into the regeneration tank. A microbubble generator on one side of the regeneration tank can draw the rich liquid from the regeneration tank and mix it with air. The rich liquid containing microbubbles is then discharged back into the regeneration tank, allowing the rich liquid to fully contact the microbubbles. The microbubbles provide a large reaction interface, enabling the desulfurizing agent to react with air for efficient regeneration. The flotation effect of the bubbles causes the generated elemental sulfur to float in the form of foam on the top of the tank and overflow into the overflow ring. It is then collected in the waste tank through the waste pipe, preventing waste from affecting the regeneration effect. This achieves efficient regeneration and recycling of the desulfurizing agent, ensuring the smooth and stable desulfurization process and improving the overall operating efficiency of the device.

[0007] Preferably, a second extraction pump is fixedly connected to the upper end of the mounting plate on the side away from the first extraction pump, a connecting pipe is fixedly connected to the input end of the second extraction pump, the end of the connecting pipe away from the second extraction pump is fixedly connected to the regeneration tank, and a water inlet pipe is fixedly connected to the output end of the second extraction pump.

[0008] By adopting the above technical solution, a second extraction pump is installed on the side of the mounting plate away from the first extraction pump. The second extraction pump is connected to the regeneration tank through a connecting pipe, which can extract the desulfurizing agent that has been regenerated in the regeneration tank. The desulfurizing agent is then transported to the desulfurization tower through the water supply pipe, which further improves the regeneration and recycling of the desulfurizing agent.

[0009] Preferably, the desulfurization tower is internally fixedly connected with a demister, a spray ring, a packing layer, and a swirl plate. The demister is located at the upper end of the spray ring, the spray ring is located at the upper end of the packing layer, and the packing layer is located at the upper end of the swirl plate.

[0010] By adopting the above technical solution, a demister, spray ring, packing layer, and swirl plate are installed inside the desulfurization tower in a sequential order from top to bottom. After natural gas enters from the bottom of the desulfurization tower, it first undergoes preliminary gas-liquid separation through the swirling action of the swirl plate, removing liquid impurities carried in the natural gas. Then, it flows upward through the packing layer, where it comes into full contact with the desulfurizing agent sprayed down by the spray ring. This allows the desulfurizing agent to adsorb sulfides in the natural gas. After desulfurization, the natural gas continues to rise and passes through the demister to remove fine droplets entrained in the gas flow, ultimately yielding clean natural gas, which is then discharged from the top of the desulfurization tower. A collection device can be installed at the top of the desulfurization tower to collect the clean natural gas.

[0011] Preferably, an air inlet is fixed on one side of the outer wall of the desulfurization tower, a flow meter is fixedly connected to one side of the inner wall of the air inlet, a hydrogen sulfide analyzer is fixedly connected to the outer wall of the desulfurization tower, and the detection end of the hydrogen sulfide analyzer extends into the air inlet.

[0012] By adopting the above technical solution, and by setting up an air inlet, flow meter, and hydrogen sulfide analyzer, an air inlet is fixed on one side of the outer wall of the desulfurization tower, allowing the natural gas to be treated to enter the tower through the air inlet. The flow meter on the inner wall of the air inlet can sense the inflow speed of the natural gas in real time, while the hydrogen sulfide analyzer on the outer wall of the desulfurization tower extends its detection end into the air inlet to directly detect the sulfide content of the incoming natural gas. The staff can keep track of the flow rate of the natural gas entering the device and the state of sulfides, and can easily adjust the operation of the device based on these actual data.

[0013] Preferably, the end of the water supply pipe furthest from the second pump is fixedly connected to the spray ring.

[0014] By adopting the above technical solution, the end of the water supply pipe away from the second extraction pump is fixedly connected to the spray ring, so that the regenerated desulfurizing agent extracted by the second extraction pump is directly sent into the spray ring through the water supply pipe, and then the spray ring evenly sprays the desulfurizing agent onto the packing layer below, so that the desulfurizing agent can fully cover the packing layer and come into contact with the rising natural gas, thereby improving the desulfurization effect.

[0015] Preferably, a controller is fixedly connected to the outer wall of the desulfurization tower, and the controller is electrically connected to the first extraction pump, the microbubble generator, the second extraction pump, the flow meter, and the hydrogen sulfide analyzer.

[0016] By adopting the above technical solution, a controller is fixed on the outer wall of the desulfurization tower, and the controller is electrically connected to the first extraction pump, the microbubble generator, the second extraction pump, the flow meter, and the hydrogen sulfide analyzer. When the data such as the inlet gas flow rate and sulfide content detected by the flow meter and the hydrogen sulfide analyzer can be transmitted to the controller in real time, the controller will automatically adjust the power of the first extraction pump and the second extraction pump and the working status of the microbubble generator according to the data, thus realizing intelligent control of the operation of the device.

[0017] Preferably, the upper end of the regeneration tank is located inside the overflow ring.

[0018] By adopting the above technical solution, the upper end of the regeneration tank is set inside the overflow ring, so that the waste and foam generated in the regeneration tank during the desulfurizer regeneration process can flow into the inner space of the overflow ring. The overflow ring can collect these wastes and transport them to the waste tank through the waste pipe for storage, so as to carry out unified treatment later.

[0019] Preferably, the packing layer is a polypropylene plastic perforated plate corrugated packing.

[0020] By adopting the above technical solution, the packing layer is made of polypropylene plastic perforated plate corrugated packing. This material itself has good corrosion resistance and can adapt to the chemical erosion that the desulfurizing agent may bring during the desulfurization process, thus extending the service life of the packing layer and reducing the frequency of replacement and maintenance. At the same time, the perforated plate corrugated structure design can form sufficient gas-liquid contact space in the desulfurization tower. When the desulfurizing agent sprayed by the spray ring falls on the packing layer, it will be evenly distributed along the corrugated surface and fully contact the upward flowing natural gas, allowing the desulfurizing agent to efficiently adsorb sulfides in the natural gas, further improving the operational stability and processing efficiency of the entire desulfurization unit.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This integrated natural gas desulfurization and desiccant device combines cyclone coalescence and micro-interface regeneration. Through the configuration of a desulfurization tower, regeneration tank, first extraction pump, second extraction pump, and microbubble generator, the rich liquid in the desulfurization tower enters the regeneration tank via the first extraction pump. The microbubble generator ensures sufficient contact between the rich liquid and air for efficient reaction, achieving desulfurizer regeneration. Utilizing the flotation effect of bubbles, the generated elemental sulfur floats as foam at the top of the tank and overflows into the overflow ring. It then enters the waste tank through the waste pipe for collection, ensuring stable desulfurizer circulation. The device also utilizes the cyclone plate, packing layer, spray ring, and demister inside the desulfurization tower. The system is designed with a polypropylene plastic perforated plate corrugated packing layer. After natural gas passes through a cyclone desulfurization plate, it comes into full contact with the sprayed desulfurizing agent for desulfurization. Then, it is purified by a demister to remove fine droplets entrained in the gas flow, ultimately yielding clean natural gas and improving the treatment efficiency. Finally, it is discharged from the top of the desulfurization tower. A collection device can be installed at the top of the desulfurization tower to collect the clean natural gas. At the same time, the flow meter and hydrogen sulfide analyzer at the inlet provide real-time feedback data, which, together with the controller, adjusts the operating status of the device, thereby achieving intelligent and efficient treatment of natural gas. It can also regenerate the rich liquid to save on operating costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the internal structure of the regeneration tank in this application. Figure 3 This is a schematic diagram of the overflow coil structure of this application; Figure 4 This is a schematic diagram of the regeneration tank installation structure of this application; Figure 5 This is a schematic diagram of the internal structure of the desulfurization tower in this application. Figure 6 This is a schematic diagram of the connection structure of the first extraction pump in this application. Figure 7 This is a schematic diagram of the connection structure of the second extraction pump in this application.

[0023] In the picture: 1. Desulfurization tower; 2. Mounting plate; 3. First extraction pump; 4. Regeneration tank; 5. Microbubble generator; 6. Overflow ring; 7. Waste pipe; 8. Waste tank; 9. Feed pipe; 10. Second extraction pump; 11. Connecting pipe; 12. Water supply pipe; 13. Demister; 14. Spray ring; 15. Packing layer; 16. Swirl plate; 17. Controller; 18. Air inlet; 19. Flow meter; 20. Hydrogen sulfide analyzer. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 This application will be described in further detail below.

[0025] Example 1: An integrated natural gas desulfurization and deliquescenting device combining cyclone coalescence and micro-interface regeneration, referring to... Figure 1 , Figure 2 and Figure 3 The system includes a desulfurization tower 1, a mounting plate 2, and a regeneration tank 4. A first extraction pump 3 is fixedly connected to one side of the upper end of the mounting plate 2. The first extraction pump 3 draws the rich liquid inside the desulfurization tower 1 into the regeneration tank 4. A microbubble generator 5 is fixedly connected to one side of the outer wall of the regeneration tank 4. The output and input ends of the microbubble generator 5 are both set through the regeneration tank 4. The microbubble generator 5 on one side of the regeneration tank 4 can draw the rich liquid in the regeneration tank 4 and mix it with air. The rich liquid containing microbubbles is then discharged back into the regeneration tank 4, allowing the rich liquid to fully contact the microbubbles. The microbubbles provide a large reaction interface, enabling the desulfurizing agent to react with the air and achieve efficient regeneration. An overflow ring is fixedly connected to the upper end of the regeneration tank 4. 6. A waste pipe 7 is fixedly connected to one side of the overflow ring 6. A waste tank 8 is fixedly connected to the end of the waste pipe 7 away from the overflow ring 6. The elemental sulfur generated is floated to the top of the tank in the form of foam by the flotation effect of bubbles and overflows into the overflow ring 6. It enters the waste tank 8 through the waste pipe 7 for collection, so as to avoid the waste from affecting the regeneration effect. A feed pipe 9 is fixedly connected to one side of the outer wall of the regeneration tank 4. The output end of the first extraction pump 3 is fixedly connected to the bottom end of the desulfurization tower 1. The end of the feed pipe 9 away from the regeneration tank 4 is fixedly connected to the input end of the first extraction pump 3. This realizes the efficient regeneration and recycling of the desulfurizing agent, ensures the smooth and stable desulfurization process, and improves the overall operating efficiency of the device.

[0026] Example 2: An integrated natural gas desulfurization and deliquescenting device combining cyclone coalescence and micro-interface regeneration, referring to... Figure 1 , Figure 5 and Figure 6A second extraction pump 10 is fixedly connected to the upper end of the mounting plate 2, away from the first extraction pump 3. A connecting pipe 11 is fixedly connected to the input end of the second extraction pump 10, and the end of the connecting pipe 11 away from the second extraction pump 10 is fixedly connected to the regeneration tank 4. A water supply pipe 12 is fixedly connected to the output end of the second extraction pump 10. The second extraction pump 10 is installed on the side of the mounting plate 2 away from the first extraction pump 3, and connected to the regeneration tank 4 via the connecting pipe 11. This allows it to extract the regenerated desulfurizing agent from the regeneration tank 4, and then transport the desulfurizing agent to the desulfurization tower 1 via the water supply pipe 12, further improving the desulfurization efficiency. For the regeneration and recycling of the sulfur agent, the desulfurization tower 1 is internally equipped with a demister 13, a spray ring 14, a packing layer 15, and a swirl plate 16. The demister 13 is located above the spray ring 14, the spray ring 14 is located above the packing layer 15, and the packing layer 15 is located above the swirl plate 16. The demister 13, spray ring 14, packing layer 15, and swirl plate 16 are arranged inside the desulfurization tower 1 in a top-to-bottom sequence. After natural gas enters from the bottom of the desulfurization tower 1, it first undergoes preliminary gas-liquid separation through the swirling action of the swirl plate 16, removing liquid impurities carried in the natural gas. It then flows upwards through the packing layer 15. The desulfurizing agent sprayed by the spray ring 14 comes into full contact with the packing layer 15, allowing the desulfurizing agent to adsorb sulfides in the natural gas. After desulfurization, the natural gas continues to rise, passing through the demister 13 to remove fine droplets entrained in the gas flow, ultimately yielding clean natural gas, which is discharged from the top of the desulfurization tower 1. A collection device can be installed at the top of the desulfurization tower 1 to collect the clean natural gas. An air inlet 18 is fixed to one side of the outer wall of the desulfurization tower 1, and a flow meter 19 is fixedly connected to one side of the inner wall of the air inlet 18. A hydrogen sulfide analyzer 20 is fixedly connected to the outer wall of the desulfurization tower 1, and the detection end of the hydrogen sulfide analyzer 20 extends to... Inside the inlet 18, the inlet 18, flow meter 19, and hydrogen sulfide analyzer 20 are fixed on one side of the outer wall of the desulfurization tower 1, allowing the natural gas to be treated to enter the tower through the inlet 18. The flow meter 19 on the inner wall of the inlet 18 can sense the inflow speed of the natural gas in real time, while the hydrogen sulfide analyzer 20 on the outer wall of the desulfurization tower 1 extends its detection end into the inlet 18 to directly detect the sulfide content of the incoming natural gas. The staff can keep track of the flow rate of the natural gas entering the device and the state of the sulfides, and can easily adjust the operation of the device based on these actual data.

[0027] Reference Figure 4 , Figure 5 and Figure 7One end of the water supply pipe 12 away from the second extraction pump 10 is fixedly connected to the spray ring 14. This connection allows the regenerated desulfurizing agent extracted by the second extraction pump 10 to be directly fed into the spray ring 14 via the water supply pipe 12. The spray ring 14 then evenly sprays the desulfurizing agent onto the lower packing layer 15, ensuring it fully covers the packing layer 15 and contacts the rising natural gas, thereby improving the desulfurization effect. A controller 17 is fixedly connected to the outer wall of the desulfurization tower 1. The controller 17 is electrically connected to the first extraction pump 3, the microbubble generator 5, the second extraction pump 10, the flow meter 19, and the hydrogen sulfide analyzer 20. The controller 17 is fixed to the outer wall of the desulfurization tower 1 and connected to the first extraction pump 3, the microbubble generator 5, the second extraction pump 10, the flow meter 19, and the hydrogen sulfide analyzer 20. Pump 10, flow meter 19, and hydrogen sulfide analyzer 20 are electrically connected. When the flow meter 19 and hydrogen sulfide analyzer 20 detect data such as inlet flow rate and sulfide content, the data can be transmitted to controller 17 in real time. Controller 17 then automatically adjusts the power of the first extraction pump 3 and the second extraction pump 10, as well as the working state of microbubble generator 5, based on these data, realizing intelligent control of the device operation. The upper end of regeneration tank 4 is located inside overflow ring 6. The packing layer 15 is polypropylene plastic perforated plate corrugated packing. Setting the upper end of regeneration tank 4 inside overflow ring 6 allows the waste and foam generated in regeneration tank 4 during desulfurization agent regeneration to flow into the inner space of overflow ring 6. Overflow ring 6 can collect these wastes and transport them to waste tank 8 through waste pipe 7 for storage, so as to carry out unified treatment later.

[0028] The implementation principle of this application embodiment is as follows: The natural gas to be treated first enters the device through the inlet 18 on the outer wall of the desulfurization tower 1. The flow meter 19 inside the inlet 18 monitors the gas inflow velocity in real time, while the hydrogen sulfide analyzer 20 extending into the inlet 18 simultaneously detects the sulfide content in the natural gas. These data are transmitted in real time to the controller 17 on the outer wall of the desulfurization tower 1. The controller 17 adjusts the operating status of each component according to the detection data. After the natural gas enters the desulfurization tower 1, it first flows through the swirl plate 16 inside the tower. Under the action of swirling, the inlet gas generates a high-speed swirling flow, and the centrifugal force is used to achieve the primary separation of gas and liquid. After removing the liquid impurities carried by the natural gas, the natural gas flows upward and passes through the packing layer 15. At this time, the second extraction pump 10 extracts the desulfurizing agent in the regeneration tank 4 through the connecting pipe 11, and then transports it to the spray ring 14 through the water supply pipe 12. The spray ring 14 sprays the desulfurizing agent evenly on the packing layer 15. The desulfurizing agent is evenly distributed along the corrugated surface of the packing and fully contacts the rising natural gas, adsorbing the sulfides in it. The natural gas that has completed desulfurization continues to rise. After the demister 13 at the top removes the entrained fine droplets, it is discharged from the top of the desulfurization tower 1 and can be directly recovered through the external receiving and collection device. The rich liquid containing sulfides adsorbed in the desulfurization tower 1 is drawn into the regeneration tank 4 by the first extraction pump 3 through the feed pipe 9. The microbubble generator 5 on one side of the regeneration tank 4 mixes the rich liquid with air to generate a rich liquid containing microbubbles, which is then discharged back into the regeneration tank 4, allowing the rich liquid and microbubbles to come into full contact. The microbubbles provide a large reaction interface, enabling the desulfurizing agent to react with the air and achieve efficient regeneration. At the same time, the flotation effect of the bubbles causes elemental sulfur to form foam and float to the top of the tank. Since the upper end of the regeneration tank 4 is located inside the overflow ring 6, the foam waste will naturally flow into the overflow ring 6 and then be collected into the waste tank 8 through the waste pipe 7. The regenerated desulfurizing agent can then be transported back to the desulfurization tower 1 by the second extraction pump 10 for recycling, forming a complete and efficient closed-loop treatment process.

Claims

1. A natural gas desulfurization and liquid removal device integrating cyclone coalescence and micro-interface regeneration, comprising a desulfurization tower (1), a mounting plate (2), and a regeneration tank (4), characterized in that: A first extraction pump (3) is fixedly connected to one side of the upper end of the mounting plate (2). A microbubble generator (5) is fixedly connected to one side of the outer wall of the regeneration tank (4). The output and input ends of the microbubble generator (5) are both set through the regeneration tank (4). An overflow ring (6) is fixedly connected to the upper end of the regeneration tank (4). A waste pipe (7) is fixedly connected to one side of the overflow ring (6). A waste tank (8) is fixedly connected to one end of the waste pipe (7) away from the overflow ring (6). A feed pipe (9) is fixedly connected to one side of the outer wall of the regeneration tank (4). The output end of the first extraction pump (3) is fixedly connected to the bottom end of the desulfurization tower (1). The end of the feed pipe (9) away from the regeneration tank (4) is fixedly connected to the input end of the first extraction pump (3).

2. The integrated natural gas desulfurization and decoupling device combining cyclone coalescence and micro-interface regeneration according to claim 1, characterized in that: The second pump (10) is fixedly connected to the side of the upper end of the mounting plate (2) away from the first pump (3). The input end of the second pump (10) is fixedly connected to the connecting pipe (11). The end of the connecting pipe (11) away from the second pump (10) is fixedly connected to the regeneration tank (4). The output end of the second pump (10) is fixedly connected to the water supply pipe (12).

3. The integrated natural gas desulfurization and liquid removal device for cyclone coalescence and micro-interface regeneration according to claim 1, characterized in that: The desulfurization tower (1) is internally fixedly connected to a demister (13), a spray ring (14), a packing layer (15), and a swirl plate (16). The demister (13) is located at the upper end of the spray ring (14), the spray ring (14) is located at the upper end of the packing layer (15), and the packing layer (15) is located at the upper end of the swirl plate (16).

4. The integrated natural gas desulfurization and decoupling device combining cyclone coalescence and micro-interface regeneration according to claim 1, characterized in that: An air inlet (18) is fixed on one side of the outer wall of the desulfurization tower (1), a flow meter (19) is fixedly connected to one side of the inner wall of the air inlet (18), a hydrogen sulfide analyzer (20) is fixedly connected to the outer wall of the desulfurization tower (1), and the detection end of the hydrogen sulfide analyzer (20) extends into the air inlet (18).

5. The integrated natural gas desulfurization and liquid removal device for cyclone coalescence and micro-interface regeneration according to claim 2, characterized in that: The end of the water supply pipe (12) away from the second pump (10) is fixedly connected to the spray ring (14).

6. The integrated natural gas desulfurization and decoupling device combining cyclone coalescence and micro-interface regeneration according to claim 1, characterized in that: The desulfurization tower (1) is fixedly connected to a controller (17) on its outer wall. The controller (17) is electrically connected to the first extraction pump (3), the microbubble generator (5), the second extraction pump (10), the flow meter (19), and the hydrogen sulfide analyzer (20).

7. The integrated natural gas desulfurization and decoupling device combining cyclone coalescence and micro-interface regeneration according to claim 1, characterized in that: The upper end of the regeneration tank (4) is located inside the overflow ring (6).

8. The integrated natural gas desulfurization and decoupling device combining cyclone coalescence and micro-interface regeneration according to claim 3, characterized in that: The packing layer (15) is a polypropylene plastic perforated plate corrugated packing.

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