Gas purification device for biogas power generation

Abstract

The gas purification device comprises a box body, a first partition plate is fixedly connected to the interior of the box body, a second partition plate fixedly connected with one side of the outer wall of the first partition plate is fixedly connected to the upper portion of one side of the inner wall of the box body, and a gas inlet pipe is communicated to the upper portion of the side, close to the second partition plate, of the box body; the side, away from the air inlet pipe, of the box communicates with an air outlet pipe, and the upper portion of the side, close to the second partition plate, of the box is fixedly connected with a first filter screen through bolts. The utility model relates to the technical field of marsh gas, the gas purification device for marsh gas power generation can quickly clean the filtered impurities through the cooperation of the box body, the fan, the spray pipe, the guide pipe and the third filter screen, and does not need a worker to disassemble a filter mechanism assembly, so that the overall operation steps can be greatly reduced, and the working efficiency is improved. And moreover, the investment of labor cost is also reduced, the overall operation efficiency is improved, and the operation intensity of workers is also reduced.

Description

Technical Field

[0001] This utility model relates to the field of biogas technology, specifically a gas purification device for biogas power generation. Background Technology

[0002] Biogas, chemically known as methane, is, as the name suggests, a gas found in swamps. People often see bubbles rising from swamps, sewage ditches, or cesspools. If we strike a match, we can ignite it; this is naturally occurring biogas. Biogas is a combustible gas produced by the fermentation of various organic substances under conditions of reduced temperature and pH by microorganisms in the absence of air (reducing conditions). Biogas is a secondary energy source and a renewable energy source. When using biogas for power generation, purification treatment is necessary to ensure the quality of power generation.

[0003] When biogas is used for power generation, the dust and impurities in the biogas need to be cleaned to avoid the impurities affecting the operating efficiency of the generator set. Traditional biogas purification devices cannot effectively clean the filtered impurities. During use, the filter mechanism needs to be removed, cleaned, and then reinstalled. This makes the whole operation cumbersome and inefficient, causing inconvenience to the staff. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a gas purification device for biogas power generation. It solves the problem that traditional biogas purification devices cannot effectively clean the filtered impurities. During use, the filter mechanism needs to be removed, cleaned, and then reinstalled, making the overall operation cumbersome and inefficient, thus causing inconvenience to the operators.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A gas purification device for biogas power generation includes a housing. A first partition is fixedly connected inside the housing. A second partition, which is fixedly connected to the outer wall of the first partition, is fixedly connected to the upper side of one side of the inner wall of the housing. An air inlet pipe is connected to the upper side of the housing near the second partition. An air outlet pipe is connected to the side of the housing away from the air inlet pipe. A first filter screen is fixedly connected to the upper side of the housing near the second partition by bolts. A third partition is fixedly connected to the lower side of the housing away from the second partition. A filter bag is fixedly connected to the bottom of the third partition. A fourth partition is fixedly connected to the upper side of the first partition near the filter bag. A fan is fixedly connected to the top side of the fourth partition. A spray pipe is connected to the output end of the fan, and both ends of the spray pipe extend to the upper side of the second partition and the lower side of the third partition, respectively. A third filter screen is fixedly connected to the upper side of the inner wall of the housing near the fan by bolts. A conduit is connected to the top of the housing and the upper side near the fan.

[0006] Preferably, a protective box is fixedly connected to the top side of the fourth partition and fixedly connected to the upper side of the inner wall of the box, and the inner wall of the protective box is fixedly connected to the output end of the fan. A second filter screen is fixedly connected to the upper side of the box near the fan by bolts, and a connecting pipe is connected to the top of the box near the fan.

[0007] Preferably, a first vertical pipe is connected to the lower part of the second partition, and a fifth partition is fixedly connected to the inner wall of the box and the outer wall of the first partition below the first vertical pipe. The inner wall of the fifth partition is fixedly connected to the second vertical pipe, and the upper part of the second vertical pipe extends to the lower part of the second partition. A replenishment and drainage pipe is connected to the side of the box near the fifth partition.

[0008] Preferably, a condenser pipe is provided on the lower side of the box body near the fifth partition, and both ends of the condenser pipe penetrate through the lower side of the box body. A drain pipe is connected to the lower side of the box body near the condenser pipe. A curved pipe is connected to the lower side of the first partition. The bottom of the filter bag is fixedly connected to a sixth partition, and the outer wall of the sixth partition is fixedly connected to the lower side of the inner wall of the box body and the lower side of the outer wall of the first partition, respectively.

[0009] Preferably, a one-way valve is installed inside the air inlet pipe, and valves are installed in the conduit, air outlet pipe, replenishment / drainage pipe, and drain pipe.

[0010] Beneficial effects

[0011] This utility model provides a gas purification device for biogas power generation. It has the following advantages: Through the cooperation of a housing, fan, nozzle, duct, and third filter, this gas purification device can quickly clean the filtered impurities without requiring workers to disassemble the filter components. This significantly reduces the overall operation steps and labor costs, improving overall work efficiency and reducing the workload of workers, thus making it convenient for them to use.

[0012] The design of condenser pipes, curved pipes, and desiccant filling below the sixth partition allows for the condensation and adsorption of water vapor inside the biogas, ensuring the combustion quality of the biogas and preventing water vapor corrosion of the power generation equipment. This, in turn, guarantees the service life and safety of the power generation equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A sectional view;

[0015] Figure 3 for Figure 2 A structural diagram of the middle housing, intake pipe, and one-way valve;

[0016] Figure 4 for Figure 2 A schematic diagram of the structure of the middle chamber, the protective chamber, and the third filter.

[0017] In the diagram: 1. Housing; 2. Inlet pipe; 3. Second partition; 4. First filter screen; 5. Sixth partition; 6. Filter bag; 7. Third partition; 8. Nozzle; 9. Fan; 10. Second filter screen; 11. Protective box; 12. Third filter screen; 13. Connecting pipe; 14. Conduit; 15. Outlet pipe; 16. Fourth partition; 17. One-way valve; 18. First partition; 19. First vertical pipe; 20. Liquid replenishment / drainage pipe; 21. Condenser pipe; 22. Drain pipe; 23. Second vertical pipe; 24. Fifth partition; 25. Curved pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0020] When biogas is used for power generation, the dust and impurities in the biogas need to be cleaned to avoid the impurities affecting the operating efficiency of the generator set. Traditional biogas purification devices cannot effectively clean the filtered impurities. When using them, the filter needs to be removed, cleaned, and then reinstalled. This makes the whole operation cumbersome and inefficient, causing inconvenience to the staff.

[0021] In view of this, the present invention provides a gas purification device for biogas power generation. Through the cooperation of the housing, fan, nozzle, duct and third filter, the filtered impurities can be cleaned quickly without the need for staff to disassemble the filter components. This greatly reduces the overall operation steps and the input of labor costs, thereby improving the overall operation efficiency and reducing the workload of staff, thus making it convenient for staff to use.

[0022] Example 1: By Figure 1 , 2 As shown in sections 3 and 4, a gas purification device for biogas power generation includes a housing 1. A first partition 18 is fixedly connected inside the housing 1. A second partition 3, which is fixedly connected to the outer wall of the first partition 18, is fixedly connected to the upper part of one side of the inner wall of the housing 1. An air inlet pipe 2 is connected to the upper part of the side of the housing 1 closest to the second partition 3. An air outlet pipe 15 is connected to the side of the housing 1 away from the air inlet pipe 2. A first filter screen 4 is fixedly connected to the upper part of the side of the housing 1 closest to the second partition 3 by bolts. A third filter screen 4 is fixedly connected to the lower part of the side of the housing 1 away from the second partition 3. The bottom of the third partition 7 is fixedly connected to a filter bag 6. The first partition 18 is fixedly connected to the upper side of the side near the filter bag 6. The top side of the fourth partition 16 is fixedly connected to a fan 9. The output end of the fan 9 is connected to a spray pipe 8. The two ends of the spray pipe 8 extend to the upper side of the second partition 3 and the lower side of the third partition 7, respectively. The top of the inner wall of the box 1 near the fan 9 is fixedly connected to a third filter screen 12 by bolts. The top of the box 1 and the upper side near the fan 9 are both connected to a duct 14.

[0023] In the specific implementation process, it is worth noting that the mesh size of the first filter screen 4, filter cloth bag 6 and third filter screen 12 are not limited, as long as they meet the usage requirements. The model of the blower 9 is not limited, as long as it meets the usage requirements. The first filter screen 4 can clean the impurities that enter the box 1, while the filter cloth bag 6 can filter the new substances generated during biogas treatment and the desiccant that may move with the airflow when passing through the desiccant. In addition, multiple high-pressure nozzles are set at both ends of the nozzle 8, and one-way valves are set inside the high-pressure nozzles to prevent biogas from entering the interior of the nozzle 8.

[0024] Furthermore, a protective box 11 is fixedly connected to the top side of the fourth partition 16 and is fixedly connected to the upper side of the inner wall of the box 1. The inner wall of the protective box 11 is fixedly connected to the output end of the fan 9. A second filter screen 10 is fixedly connected to the upper side of the box 1 near the fan 9 by bolts. A connecting pipe 13 is connected to the top side of the box 1 near the fan 9.

[0025] In the specific implementation process, it is worth noting that the mesh size of the second filter screen 10 is not limited, as long as it meets the usage requirements. The second filter screen 10 can block dust entering the interior of the box 1. The staff can use the collection and treatment equipment to treat the biogas carried away during the cleaning of impurities. The specific treatment method can be combustion treatment or desulfurization treatment, etc. There are no restrictions on the specific treatment situation and equipment selection, as long as it meets the usage requirements. When cleaning impurities, the staff needs to open the valves of the two pipes 14 and close the valve of the gas outlet pipe 15, so as to prevent a large amount of outside air from entering the subsequent treatment equipment through the gas outlet pipe 15.

[0026] Specifically, when using this biogas power generation gas purification device, the staff uses the air inlet pipe 2 to input biogas into the interior of the housing 1. The biogas then passes through the first filter screen 4 for filtration and impurity removal, and then through the filter bag 6 for secondary impurity removal. Finally, it is discharged from the outlet pipe 15. When it is necessary to clean the filtered impurities, the staff turns on the blower 9. The blower 9 sprays the outside air filtered by the second filter screen 10 through the nozzle 8 onto the surface of the first filter screen 4 and the filter bag 6, which cleans the first filter screen 4 and the filter bag 6. As outside air continues to enter the interior of the housing 1, dust can follow the airflow and enter the interior of the housing 1 from the two ducts 14 to the upper side of the interior. After being filtered by the third filter screen 12, it can be discharged from the interior of the housing 1 through the connecting pipe 13. This completes the collection and treatment of impurities.

[0027] Example 2: From Figure 2It is known that the lower part of the second partition 3 is connected to the first vertical pipe 19, and the lower part of the first vertical pipe 19 is provided with a fifth partition 24 which is fixedly connected to the inner wall of the box 1 and the outer wall of the first partition 18. The inner wall of the fifth partition 24 is fixedly connected to the second vertical pipe 23, and the upper part of the second vertical pipe 23 extends to the lower part of the second partition 3. The side of the box 1 near the fifth partition 24 is connected to the replenishment and drainage pipe 20.

[0028] In the specific implementation process, it is worth noting that the staff can inject a certain amount of amine solution (such as MEA, DEA) between the fifth partition 24 and the second partition 3, which can absorb carbon dioxide inside the biogas, thereby increasing the concentration of biogas and increasing the calorific value of biogas. There are no restrictions on the specific solution selection, as long as it meets the usage requirements. At the same time, the staff need to replace the treatment solution regularly through the replenishment and drainage pipe 20 to ensure the treatment quality of the treatment solution.

[0029] Furthermore, a condenser pipe 21 is provided on the lower side of the box body 1 near the fifth partition 24, and both ends of the condenser pipe 21 penetrate through the lower side of the box body 1. A drain pipe 22 is connected to the lower side of the box body 1 near the condenser pipe 21. A curved pipe 25 is connected to the lower side of the first partition 18. The bottom of the filter bag 6 is fixedly connected to the sixth partition 5, and the outer wall of the sixth partition 5 is fixedly connected to the lower side of the inner wall of the box body 1 and the lower side of the outer wall of the first partition 18 respectively.

[0030] In the specific implementation process, it is worth noting that the staff can use an external circulating water supply device to inject cold water into the lower part of the box 1 through the condenser pipe 21. This allows the water vapor inside the biogas to condense when it passes through the condenser pipe 21. There are no restrictions on the specific selection of the external circulating water supply device and the connection method with the condenser pipe 21, as long as it meets the usage requirements. The staff can fill the lower part of the sixth partition 5 and the first partition 18 with desiccant, which can be used to perform secondary drying of the condensed biogas. There are no restrictions on the specific material of the desiccant, as long as it meets the usage requirements. It should be noted that the staff should replace the desiccant regularly to avoid the problem of increased internal moisture and decreased adsorption effect after long-term use.

[0031] Furthermore, a one-way valve 17 is installed inside the air intake pipe 2, and valves are installed on the conduit 14, air outlet pipe 15, replenishment / drainage pipe 20 and drain pipe 22;

[0032] In the specific implementation process, it is worth noting that the design of the one-way valve 17 can prevent the gas inside the chamber 1 from flowing back out through the air inlet pipe 2. When no impurities are removed, the valves of both pipes 14 should be closed. When no treatment solution is replenished or condensate is discharged, the valves of the drain pipe 22 and the replenishment pipe 20 should be closed. During normal operation, the valve of the air outlet pipe 15 should be open, while when cleaning impurities, the valve of the air outlet pipe 15 should be closed.

[0033] Specifically, based on the above embodiment one, after the biogas passes through the first filter screen 4, it can be injected into the treatment solution through the first vertical pipe 19 to treat the biogas. After treatment, the biogas can enter the lower part of the fifth partition 24 through the second vertical pipe 23. Then, the staff can use the external circulating water supply device to inject cold water into the condenser pipe 21, so that the water vapor in the biogas can be condensed through the condenser pipe 21. The condensed biogas can then enter the desiccant through the curved pipe 25, and then be dried again using the desiccant. The dried biogas can then be filtered through the filter bag 6.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas purification device for biogas power generation, comprising a box (1), characterized in that: The inside of the box (1) is fixedly connected with a first partition plate (18), one side of the inner wall of the box (1) is fixedly connected with a second partition plate (3) which is fixedly connected with the outer wall of the first partition plate (18), the side close to the second partition plate (3) of the box (1) is communicated with an air inlet pipe (2), the side away from the air inlet pipe (2) of the box (1) is communicated with an air outlet pipe (15), the side close to the second partition plate (3) of the box (1) is fixedly connected with a first filter screen (4) through bolts, the side away from the second partition plate (3) of the box (1) is fixedly connected with a third partition plate (7) at the bottom, the bottom of the third partition plate (7) is fixedly connected with a filter cloth bag (6), the side close to the filter cloth bag (6) of the first partition plate (18) is fixedly connected with a fourth partition plate (16), one side of the top of the fourth partition plate (16) is fixedly connected with a fan (9), the output end of the fan (9) is communicated with a spray pipe (8), and the two ends of the spray pipe (8) extend to the side of the top of the second partition plate (3) and the side of the bottom of the third partition plate (7) respectively, the side close to the fan (9) of the inner wall of the box (1) is fixedly connected with a third filter screen (12) through bolts, and the top of the box (1) and the side close to the fan (9) are both communicated with a conduit (14).

2. The biogas purification apparatus according to claim 1, characterized in that: One side of the top of the fourth partition plate (16) is fixedly connected with a protective box (11) which is fixedly connected with one side of the top of the inner wall of the box (1), and the inner wall of the protective box (11) is fixedly connected with the output end of the fan (9), the side close to the fan (9) of the top of the box (1) is fixedly connected with a second filter screen (10) through bolts, and the side close to the fan (9) of the top of the box (1) is communicated with a connecting pipe (13).

3. The biogas purification apparatus for biogas power generation according to claim 1, characterized by: The lower side of the second partition plate (3) is communicated with a first vertical pipe (19), the lower side of the first vertical pipe (19) is provided with a fifth partition plate (24) which is fixedly connected with the inner wall of the box (1) and the outer wall of the first partition plate (18), the inner wall of the fifth partition plate (24) is fixedly connected with a second vertical pipe (23), and the upper side of the second vertical pipe (23) extends to the lower side of the second partition plate (3), and the side close to the fifth partition plate (24) of the box (1) is communicated with a supplement and drainage pipe (20).

4. The biogas purification apparatus according to claim 1, wherein: The side close to the fifth partition plate (24) of the box (1) is provided with a condenser pipe (21) at the lower side, and the two ends of the condenser pipe (21) both penetrate the lower side of the box (1), the side close to the condenser pipe (21) of the box (1) is communicated with a drainage pipe (22) at the lower side, the lower side of the first partition plate (18) is communicated with a curved pipe (25), the bottom of the filter cloth bag (6) is fixedly connected with a sixth partition plate (5), and the outer wall of the sixth partition plate (5) is fixedly connected with the inner wall of the box (1) and the outer wall of the first partition plate (18) respectively.

5. The biogas purification apparatus for biogas power generation according to claim 1, characterized by: The inside of the air inlet pipe (2) is provided with a one-way valve (17), and the conduit (14), the air outlet pipe (15), the supplement and drainage pipe (20) and the drainage pipe (22) are all provided with valves.

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