Biogas purification and desulfurization treatment device

Abstract

The utility model discloses a biogas purification desulfurization treatment device, which relates to the technical field of biogas desulfurization and comprises a device body, the inner wall of the device body is respectively communicated with a gas inlet box and a gas outlet box, a purification component is arranged in the gas inlet box, and a disassembly component is arranged in the gas inlet box; the methane purification device has the advantages that methane can be better purified and desulfurized through the purification assembly, hydrogen sulfide in the methane can be removed through targeted adsorption or chemical reaction of the desulfurizer layer, the concentration of the hydrogen sulfide is reduced to reach the safety standard, and the methane purification device is simple in structure, convenient to use and high in practicability. And the purification layer can further filter solid particles, moisture and residual impurities in the biogas, the purity of the biogas is improved, the biogas is combusted more sufficiently, the heat value is more stable, and the device is suitable for high-quality energy utilization scenes such as power generation and heat supply.

Description

A biogas purification and desulfurization treatment device Technical Field

[0001] This utility model relates to the field of biogas desulfurization technology, and in particular to a biogas purification and desulfurization treatment device. Background Technology

[0002] Biogas is a mixed gas produced by the fermentation of organic matter under anaerobic conditions by microorganisms. Biogas is a mixture of multiple gases, and its properties are similar to those of natural gas. In addition to being directly burned for cooking, drying agricultural products, heating, lighting, and gas welding, biogas can also be used as fuel for internal combustion engines and as a chemical raw material for the production of methanol, formaldehyde, carbon tetrachloride, and other products. The liquid and sludge discharged after fermentation by a biogas device contain relatively rich nutrients and can be used as fertilizer and feed.

[0003] The sulfur content in biogas can affect its subsequent utilization, so it needs to be purified by biogas desulfurization treatment equipment. Currently, common desulfurization methods include dry desulfurization, wet desulfurization, and biological desulfurization. However, existing wet desulfurization equipment has obvious shortcomings: on the one hand, the contact area between the gas and the desulfurizing agent is limited, making it difficult to improve the desulfurization efficiency; on the other hand, the process introduces moisture, increasing the water content of the biogas, which can easily lead to incomplete combustion and reduced calorific value during combustion, affecting energy utilization. At the same time, it is not convenient to disassemble the purification layer and desulfurizing agent layer. If the desulfurizing agent fails or the purification layer is blocked, it cannot be replaced quickly, requiring shutdown and disassembly of the entire equipment, resulting in long-term downtime and extended maintenance cycles. Especially in case of emergency failure, it is difficult to respond quickly, causing production interruption and losses. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A biogas purification and desulfurization treatment device includes a device body, the inner wall of which is connected to an air inlet box and an air outlet box respectively. A purification component is installed inside the air inlet box, and a disassembly component is installed inside the air inlet box.

[0007] The purification component includes a purification layer installed on the inner wall of the air intake box, and the inner wall of the air intake box is equipped with a desulfurizing agent layer for desulfurizing biogas.

[0008] The disassembly assembly includes a snap-fit ​​block that snaps into the inner wall of the desulfurizing agent layer. A connecting plate is fixedly connected to one side of the snap-fit ​​block, and an inclined plate is rotatably connected to the outer side of the connecting plate via a rotating shaft. The number of inclined plates is set to two sets.

[0009] In a preferred embodiment of the biogas purification and desulfurization treatment device of this utility model, the inner wall of the inclined plate is rotatably connected to a movable seat via a rotating shaft, and the number of movable seats is set to multiple sets, with a movable block fixedly connected between two sets of movable seats.

[0010] In a preferred embodiment of the biogas purification and desulfurization treatment device of this utility model, the inner wall of the air inlet box is fixedly connected with a fixed column for sliding the moving block, and a spring for resetting the moving block is installed on the outer side of the fixed column, and the number of springs is set to two sets.

[0011] As a preferred embodiment of the biogas purification and desulfurization treatment device of this utility model, a reagent tank is fixedly connected to one side of the device body, and a drainage pipe is connected to the inner wall of the reagent tank.

[0012] In a preferred embodiment of the biogas purification and desulfurization treatment device of this utility model, one end of the diversion pipe is connected to a water pump, and the outlet end of the water pump is connected to a conveying pipe.

[0013] In a preferred embodiment of the biogas purification and desulfurization treatment device of this utility model, the inner wall of the conveying pipe is connected to multiple sets of installation pipes via flanges, and the inner wall of the installation pipes is connected to atomizing nozzles for spraying desulfurizing agent.

[0014] In a preferred embodiment of the biogas purification and desulfurization treatment device of this utility model, the inner wall of the inlet box is connected to an inlet pipe for conveying biogas, and the inner wall of the outlet box is connected to a gas delivery pipe for conveying desulfurized biogas.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. By setting up purification components, biogas can be better purified and desulfurized. The desulfurizing agent layer can specifically adsorb or chemically react to remove hydrogen sulfide in biogas, reducing its concentration to a safe standard, avoiding corrosion of downstream equipment by sulfides, and extending equipment life. The purification layer can further filter solid particles, moisture and residual impurities in biogas, improve biogas purity, make it burn more completely and have a more stable calorific value, and is suitable for high-quality energy utilization scenarios such as power generation and heating.

[0017] 2. The disassembly assembly facilitates the removal of the purification layer and desulfurizer layer. The detachable design allows operators to quickly remove expired desulfurizer (such as iron oxide particles) and dirty purification materials (such as filter cloth and activated carbon), and replace the packing material in a timely manner to avoid a decrease in treatment efficiency due to the failure of consumables. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 is a structural diagram of the biogas purification and desulfurization treatment device.

[0020] Figure 2 shows the structure of the biogas purification and desulfurization treatment device and the reagent tank.

[0021] Figure 3 shows the structure of the air inlet box and air inlet pipe of the biogas purification and desulfurization treatment device.

[0022] Figure 4 shows the structure of the water pump and conveying pipe of the biogas purification and desulfurization treatment device.

[0023] Figure 5 is an enlarged structural diagram of point A shown in Figure 3.

[0024] The following are the labeling elements in the diagram: 1. Device body; 2. Inlet box; 3. Outlet box; 4. Purification component; 41. Purification layer; 42. Desulfurizing agent layer; 5. Disassembly component; 51. Clip-on block; 52. Connecting plate; 53. Inclined plate; 6. Moving seat; 7. Moving block; 8. Fixing column; 9. Spring; 10. Agent tank; 11. Drainage pipe; 12. Water pump; 13. Delivery pipe; 14. Installation pipe; 15. Atomizing nozzle; 16. Inlet pipe; 17. Delivery pipe. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Example 1:

[0029] Referring to Figures 1 to 5, this is the first embodiment of the present invention. This embodiment provides a biogas purification and desulfurization treatment device, including a device body 1. The inner wall of the device body 1 is connected to an air inlet box 2 and an air outlet box 3 respectively. A purification component 4 is arranged inside the air inlet box 2, and a disassembly component 5 is arranged inside the air inlet box 2.

[0030] The main body 1 serves as the main frame of the entire device, accommodating and fixing all internal components, and providing a stable installation and operating space. The air inlet box 2 is used to receive the biogas to be treated, which enters through the air inlet pipe 16 and guides the biogas to pass through the purification component 4 for desulfurization and purification. The air outlet box 3 is used to collect the desulfurized and purified biogas and transport it to the subsequent use stage. It should be noted that the inner wall of the main body 1 is connected to a drain valve for discharging the agent. It should also be noted that the inner wall of the air outlet box 3 is equipped with a drying plate for drying the biogas after cleaning with the desulfurizing agent.

[0031] The purification component 4 includes a purification layer 41 installed on the inner wall of the air intake box 2, and a desulfurizing agent layer 42 for desulfurizing biogas is installed on the inner wall of the air intake box 2.

[0032] The purification layer 41 is designed to initially filter solid impurities in biogas, such as particulate matter and suspended solids, reducing the risk of impurities clogging the desulfurizer layer 42 and extending the service life of the desulfurizer. It should be noted that the purification layer 41 is composed of activated carbon material, which is existing technology. The desulfurizer layer 42 is designed to remove hydrogen sulfide from biogas through adsorption or chemical reaction using desulfurizers, such as activated carbon and iron oxide, thereby reducing the sulfur content and meeting environmental protection and usage requirements. It should be noted that both the purification layer 41 and the desulfurizer layer 42 are fixedly connected to one side with a limiting block. One side is installed with the limiting block, and the other side is pressed by the disassembly component 5 to fix the purification layer 41 and the desulfurizer layer 42.

[0033] The disassembly assembly 5 includes a snap-fit ​​block 51 that snaps into the inner wall of the desulfurizer layer 42. A connecting plate 52 is fixedly connected to one side of the snap-fit ​​block 51. An inclined plate 53 is rotatably connected to the outer side of the connecting plate 52 via a rotating shaft. The number of inclined plates 53 is set to two sets.

[0034] The snap-fit ​​block 51 is used to snap into the inner wall of the desulfurizing agent layer 42, fixing the position of the desulfurizing agent layer 42 and ensuring its stability during operation. The snap-fit ​​structure also enables quick installation and disassembly, facilitating the replacement of the failed desulfurizing agent layer 42 during maintenance. The connecting plate 52 is used to connect the snap-fit ​​block 51 and the inclined plate 53, transmitting the operating force so that the rotation of the inclined plate 53 can drive the snap-fit ​​block 51 to move, realizing the installation and disassembly of the desulfurizing agent layer 42. The two sets of inclined plates 53 rotate through the rotating shaft, using the mechanical principle of the inclined plane to convert the horizontal thrust into the vertical displacement, pushing the snap-fit ​​block 51 to disengage from or snap into the inner wall of the desulfurizing agent layer 42, realizing the disassembly or installation function.

[0035] Example 2:

[0036] This is the second embodiment of the present invention, which is based on the previous embodiment.

[0037] Specifically, the inner wall of the inclined plate 53 is rotatably connected to a movable seat 6 via a rotating shaft, and the number of movable seats 6 is set to multiple sets, with a movable block 7 fixedly connected between two sets of movable seats 6.

[0038] The movable seat 6 is connected to the inclined plate 53 via a rotating shaft, serving as a support point for the inclined plate 53 when it rotates, guiding the inclined plate 53 to move along a predetermined trajectory, ensuring the smooth movement of the locking block 51. The movable block 7 is used to connect multiple sets of movable seats 6, synchronously transmitting displacement signals, so that the inclined plates 53 on both sides move in coordination, avoiding jamming or damage to the locking structure due to uneven force.

[0039] Specifically, the inner wall of the air intake box 2 is fixedly connected to a fixed post 8 for sliding the moving block 7, and a spring 9 for resetting the moving block 7 is installed on the outer side of the fixed post 8, and the number of springs 9 is set to two sets.

[0040] The design of the fixed column 8 provides a sliding track for the movable block 7, restricting its movement direction, ensuring the movement accuracy of the disassembly component 5, and avoiding offset or shaking. The spring 9 acts as a reset element. When the disassembly operation is completed and the external force on the movable block 7 is released, the spring 9 pushes the movable block 7 to reset, so that the inclined plate 53 and the locking block 51 automatically return to the locked state, simplifying the operation process.

[0041] Example 3:

[0042] This is the third embodiment of the present invention, which is based on the first two embodiments.

[0043] Specifically, a medicine box 10 is fixedly connected to one side of the device body 1, and a drainage tube 11 is connected to the inner wall of the medicine box 10.

[0044] The reagent tank 10 is designed to store liquid reagents such as alkaline solutions required for desulfurization, providing raw materials for wet desulfurization. The guide pipe 11 is designed to communicate with the reagent tank 10.

[0045] Specifically, one end of the drainage pipe 11 is connected to a water pump 12, and the outlet end of the water pump 12 is connected to a delivery pipe 13.

[0046] The water pump 12 draws the agent from the agent tank 10 through the diversion pipe 11, pressurizes it, and then delivers it to the atomizing nozzle 15 through the delivery pipe 13.

[0047] Specifically, the inner wall of the conveying pipe 13 is connected to multiple sets of installation pipes 14 via flanges, and the inner wall of the installation pipes 14 is connected to atomizing nozzles 15 for spraying desulfurizing agent.

[0048] The installation pipe 14 facilitates connection with the delivery pipe 13. The atomizing nozzle 15 atomizes the agent into fine droplets, increasing the contact area with hydrogen sulfide in the biogas and enhancing the efficiency of wet desulfurization. Multiple atomizing nozzles 15 are evenly distributed to ensure that the agent and gas are fully mixed, thereby improving the desulfurization effect.

[0049] Specifically, the inner wall of the air inlet box 2 is connected to an air inlet pipe 16 for transporting biogas, and the inner wall of the air outlet box 3 is connected to a gas delivery pipe 17 for transporting desulfurized biogas.

[0050] The inlet pipe 16 is used to connect to an external biogas source and transport the biogas to be treated to the inlet box 2 for purification. The gas delivery pipe 17 is designed to transport the desulfurized and purified biogas from the outlet box 3 to subsequent equipment for energy utilization.

[0051] In operation, the inlet pipe 16 is first connected to an external power source. The biogas to be treated enters the inlet box 2 through the inlet pipe 16 and first flows through the purification layer 41. This layer typically uses porous filter material to remove solid impurities and some moisture from the biogas, preventing impurities from clogging the subsequent desulfurizing agent layer 42 or affecting the desulfurization efficiency. The purified biogas continues to pass through the desulfurizing agent layer 42, which is filled with desulfurizing agents such as iron oxide and zinc oxide. To further improve the desulfurization accuracy, the alkaline desulfurizing agent in the agent tank 10 is extracted by the water pump 12 and transported to the atomizing nozzle 15 through the conveying pipe 13 and the installation pipe 14. The atomizing nozzle 15 atomizes the agent into micron-sized droplets, forming a "mist curtain" inside the device, which mixes thoroughly with the biogas. The biogas that has undergone dual desulfurization then enters the purification layer 41. The gas outlet box 3 delivers gas to the subsequent utilization stage through the gas supply pipe 17. During normal operation, the locking block 51 is locked into the slot of the desulfurizing agent layer 42, forming a stable support through the connecting plate 52 and the inclined plate 53. The spring 9 is in its natural state, pushing the moving block 7 to the initial position to ensure that the locking block 51 is tightly locked. When disassembly is required, the operator pulls the moving block 7 to slide along the fixed column 8, compressing the spring 9. The moving block 7 drives the moving seat 6 to move synchronously, forcing the inclined plate 53 to rotate around the pivot. This action pulls the locking block 51 out of the slot through the connecting plate 52, releasing the lock on the desulfurizing agent layer 42. The locking block 51 on the inner wall of the purification layer 41 also moves in the same way, so that both the purification layer 41 and the desulfurizing agent layer 42 can be disassembled.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A biogas purification and desulfurization treatment device, comprising a device body (1), characterized in that: The inner wall of the device body (1) is connected to an air inlet box (2) and an air outlet box (3). The air inlet box (2) is equipped with a purification component (4) and a disassembly component (5). The purification component (4) includes a purification layer (41) installed on the inner wall of the air inlet box (2). The inner wall of the air inlet box (2) is equipped with a desulfurizing agent layer (42) for desulfurizing biogas. The disassembly component (5) includes a snap-fit ​​block (51) snapped into the inner wall of the desulfurizing agent layer (42). A connecting plate (52) is fixedly connected to one side of the snap-fit ​​block (51). An inclined plate (53) is rotatably connected to the outer side of the connecting plate (52) through a rotating shaft. The number of inclined plates (53) is set to two sets.

2. The biogas purification and desulfurization treatment device as described in claim 1, characterized in that: The inner wall of the inclined plate (53) is rotatably connected to a movable seat (6) via a rotating shaft, and the number of movable seats (6) is set to multiple sets, with a movable block (7) fixedly connected between two sets of movable seats (6).

3. The biogas purification and desulfurization treatment device as described in claim 1, characterized in that: The inner wall of the air intake box (2) is fixedly connected to a fixed column (8) for sliding the moving block (7). A spring (9) for resetting the moving block (7) is installed on the outer side of the fixed column (8), and the number of springs (9) is set to two sets.

4. The biogas purification and desulfurization treatment device as described in claim 1, characterized in that: A medicine box (10) is fixedly connected to one side of the device body (1), and a drainage tube (11) is connected to the inner wall of the medicine box (10).

5. The biogas purification and desulfurization treatment device as described in claim 4, characterized in that: One end of the drainage pipe (11) is connected to a water pump (12), and the outlet end of the water pump (12) is connected to a delivery pipe (13).

6. The biogas purification and desulfurization treatment device as described in claim 5, characterized in that: The inner wall of the conveying pipe (13) is connected to multiple sets of installation pipes (14) via flanges, and the inner wall of the installation pipes (14) is connected to atomizing nozzles (15) for spraying desulfurizing agent.

7. The biogas purification and desulfurization treatment device as described in claim 1, characterized in that: The inner wall of the air inlet box (2) is connected to an air inlet pipe (16) for transporting biogas, and the inner wall of the air outlet box (3) is connected to a gas delivery pipe (17) for transporting desulfurized biogas.

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