Biogas dehydration device for garbage power generation

Abstract

The utility model discloses a marsh gas dehydration device for garbage power generation, which relates to the technical field of marsh gas treatment and comprises a tank body and a tank cover, a gas inlet pipe is mounted at the lower part of the tank body, an exhaust pipe is mounted at the upper part of the tank body, and a shunting component for shunting marsh gas is mounted in the gas inlet pipe; a multi-layer treatment component is arranged in the tank body and consists of a multi-layer filter body, a fitting ring which is fitted with the inner wall of the tank body is arranged outside the filter body, a filter layer is arranged in the middle of the fitting ring, and a condensation guide rod is assembled in the middle of the multi-layer filter body. According to the utility model, the design structure is reasonable, biogas primarily entering the tank body can be subjected to split-flow treatment, the designed multiple filter layers with different filter screen holes are convenient for layered screening of the entering biogas, and each filter layer is inverted-V-shaped, and the bottom of each filter layer is in arc transition, so that moisture in the biogas can be conveniently filtered by different layers, and the moisture in the biogas can be effectively separated. And condensation is performed at the lowest position of the filter layer, so that the absorption of moisture in the biogas is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biogas treatment, in particular to a biogas dehydration device for garbage power generation. Background Art

[0002] Biogas is a combustible gas produced by microbial fermentation. It is a secondary energy source and a renewable green energy source. When using garbage to generate electricity, the biogas produced needs to be processed before it can be used. The treatment of biogas requires dehydration and denitrification.

[0003] The biogas generated by waste-to-energy power plants contains a certain amount of water, which has a significant impact on its utilization. The water in the biogas, combined with hydrogen sulfide, can accelerate the corrosion of pipes, valves, flow meters, and other equipment. Therefore, dehydration is required during biogas desulfurization. Existing dehydration methods involve passing the biogas into a dehydration tank, where it absorbs the water contained in the biogas. However, since the dehydration tank contains a water-collecting material that condenses the water in the biogas, liquid water, oil mist, dust, and other particles in the biogas are passed through the black film into the dehydration tank. This single water-collecting material is not conducive to the rapid multi-layer separation of the water in the biogas. Biogas mixed with impurities can easily form airflow blockages at the air inlet pipe, hindering the rapid entry of the biogas into the dehydration tank for dehydration. Furthermore, the biogas initially entering the dehydration tank is not easily separated, resulting in some unabsorbed water being mixed in with the biogas when it is discharged. To address this issue, we provide a biogas dehydration device for waste-to-energy power plants that addresses the above issues. Utility Model Content

[0004] 1) Technical problems solved

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a biogas dehydration device for garbage power generation.

[0006] 2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a biogas dehydration device for garbage power generation, comprising a tank body and a tank cover, wherein the lower part of the tank body is equipped with an air inlet pipe, and the upper part of the tank body is equipped with an exhaust pipe, and a diversion component for diverting biogas is installed inside the air inlet pipe; a multi-layer processing component is provided inside the tank body, and the multi-layer processing component is composed of a multi-layer filter body, the outside of the filter body is a fitting ring attached to the inner wall of the tank body, and the middle part of the fitting ring is a filter layer, the filter mesh density of the multi-layer filter layer decreases successively, and the aperture of the filter mesh increases successively, and the middle part of the multi-layer filter body is assembled by a condensation guide rod.

[0008] Furthermore, the filter layer is in an inverted V shape, and the bottom of the inverted V shape is an arc transition.

[0009] Furthermore, the diversion assembly includes a spherical transition body arranged in the middle of the air intake pipe, a diversion sphere is arranged inside the spherical transition body, the diversion sphere is an ellipsoid, and the interior of the diversion sphere is a cavity structure, and two groups of mutually symmetrical diversion holes are opened on the diversion sphere.

[0010] Furthermore, the diverter holes are distributed at equal intervals, and the diameters of the two groups of diverter holes are distributed at equal differences.

[0011] Furthermore, the bottom of the condensation guide rod is in a pointed cone shape.

[0012] Furthermore, two sets of lifting handles are installed on the top of the tank cover, a pressure gauge is installed in the middle of the top of the tank cover, and a sewage pipe is installed at the bottom of the tank body.

[0013] 3) Beneficial effects:

[0014] Compared with the existing technology, the biogas dehydration device for garbage power generation has the following beneficial effects:

[0015] 1. The utility model is conducive to diverting the biogas that initially enters the tank body by designing a diversion component in the air intake pipe entering the tank body, avoiding blocking the air intake pipe when the biogas enters quickly. At the same time, the multiple filter layers with different filter meshes designed after entering the tank body are convenient for layered screening of the incoming biogas, and each filter layer is in an inverted V shape with a circular arc transition at the bottom, which is conducive to the condensation of moisture in the biogas at the lowest position of the filter layer after being filtered through different layers, thereby improving the absorption of moisture in the biogas.

[0016] 2. The utility model provides a condensation guide rod in the middle of the multi-layer filter layer, which facilitates guiding the condensed water condensed in the filter layer to the middle of the filter layer, and then drips along the tip of the condensation guide rod, thereby collecting the water absorbed in the filter layer at the bottom of the tank body, quickly discharging the absorbed water, and preventing the water from adhering to the adsorption layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the partial explosion structure of the utility model;

[0019] Figure 3 This is a structural diagram of the filter layer of the present invention;

[0020] Figure 4 This is a schematic diagram of a partial cutaway structure of the air intake pipe of the present invention;

[0021] Figure 5It is the diverter sphere of the utility model.

[0022] In the figure: 1. Tank body; 2. Tank cover; 3. Air inlet pipe; 4. Exhaust pipe; 5. Diverter assembly; 6. Fitting ring; 7. Filter layer; 8. Condensation guide rod; 9. Spherical transition body; 10. Diverter sphere; 11. Diverter hole; 12. Lifting handle; 13. Pressure gauge; 14. Drain pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1-5 As shown, the utility model provides a technical solution: a biogas dehydration device for garbage power generation. This solution is mainly used to solve the biogas treatment generated in the garbage power generation process, the dehydration and desulfurization of the biogas, and the main design is to perform preliminary separation treatment and multi-layer drying treatment on the biogas entering the tank body 1, including a tank body 1 and a tank cover 2. The tank body 1 and the tank cover 2 are connected by threads. The lower part of the tank body 1 is equipped with an air intake pipe 3, the outside of the air intake pipe 3 is connected to the black film of the biogas, the connecting end face of the air intake pipe 1 is a disc surface, and the inner side of the disc surface is concave. A layer of sealing material, such as cloth or sealing film, is attached to its surface, thereby increasing the sealing performance of the connection between the air intake pipe 3 and the biogas black film and reducing the leakage of biogas when entering the tank body 1, and the upper part of the tank body 1 is equipped with an exhaust pipe 4, and a diversion component 5 for diverting the biogas is installed inside the air intake pipe 3. Three groups of support legs for supporting the tank body 1 are welded at the bottom of the tank body 1, and the bottom of the support leg is disc-shaped to increase its stability.

[0025] The tank body 1 is provided with a multi-layer processing component, which is composed of a multi-layer filter body. The outside of the filter body is a fitting ring 6 that is attached to the inner wall of the tank body 1. The fitting position of the fitting ring 6 and the tank body 1 is a friction surface to increase friction. The fitting ring 6 can also be bonded to the inner wall of the tank body 1, or by designing a boss or a clip on the outside of the fitting ring 6 and the inner wall of the tank body 1, so that the fitting ring 6 can be mounted inside the tank body 1 and the fitting ring 6 can be easily disassembled. The middle part of the fitting ring 6 is a filter layer 7. The filter mesh density of the multi-layer filter layer 7 decreases successively. The material of the filter layer 7 is selected from different materials, and the aperture of the filter mesh increases successively. The filter mesh distribution of the lowest layer is relatively sparse and the aperture is larger. For example, rubber material is used. Both sides of the filter layer 7 are condensation materials. Glass material that is convenient for water condensation, or other material coatings that are convenient for water condensation can be selected. The middle part of the multi-layer filter body is assembled by a condensation guide rod 8.

[0026] The filter layer 7 is in an inverted V shape, and the bottom of the inverted V shape is an arc transition.

[0027] The diverter assembly 5 includes a spherical transition body 9 arranged in the middle of the air intake pipe 3, and a diverter sphere 10 is arranged inside the spherical transition body 9. The diverter sphere 10 is an ellipsoid, and the interior of the diverter sphere 10 is a cavity structure. Two groups of mutually symmetrical diverter holes 11 are opened on the diverter sphere 10.

[0028] The diverter holes 11 are distributed at equal intervals, and the diameters of the two groups of diverter holes 11 are distributed at equal differences.

[0029] The bottom of the condensation guide rod 8 is in a pointed cone shape.

[0030] Two sets of lifting handles 12 are installed on the top of the tank cover 2. When the tank cover 2 needs to be removed from the top of the tank body 1, both hands are inserted into the recessed parts of the lifting handles 12, and then rotated along the top of the tank body 1 to remove the tank cover 2 from the top of the tank body 1. A pressure gauge 13 is installed in the middle of the top of the tank cover 2. The pressure gauge is used to detect the pressure changes inside the tank body 1. A sewage pipe 14 is installed at the bottom of the tank body 1. When there is enough condensed water inside the tank body 1 and it needs to be discharged from the inside of the tank body 1, the valve of the sewage tank 14 is opened to discharge the sewage inside the tank body 14.

[0031] Working principle: When using the dehydration tank in this scheme, first place the supporting legs at the bottom of the tank body 1 on the ground, and then seal and fix the air inlet pipe 3 connected to the biogas black film, and connect the air pipe to the exhaust pipe 4 on the upper part of the tank body 1. One end of the air pipe is connected to the inlet of the desulfurization pipe, and a valve is installed on the pipe. When the biogas is dehydrated, the valve is closed. After the biogas enters from the air inlet pipe 3, the biogas first contacts the diversion sphere at the spherical transition body 9. The middle spherical part of the spherical transition body 9 is in an expanded shape, which is conducive to the transition and concentration of the biogas. When the concentrated biogas is introduced in the form of gas, it is convenient to rotate the diversion sphere 10 at the spherical transition body 9. The diversion holes 11 with equal intervals can pass the gas evenly, and the equidistantly distributed apertures make the airflow passing through the diversion holes 11 have an airflow difference, thereby preliminarily diverting the incoming biogas, effectively avoiding biogas. The gas forms a mucous film, which accelerates the entry of biogas into the tank body 1. When the biogas enters the tank body 1, it first contacts the bottom filter layer 7. Since the surface of the filter layer 7 is coated with a condensing material, it is convenient for the water in the biogas to condense and then gather at the bottom arc transition of the filter layer 7. The biogas passes through the filter mesh of the filter body 7 upward and then gathers at the bottom of the upper filter layer 7, so that the absorbed biogas is easy to be absorbed and processed at the middle filter layer 7. The mesh diameter of the filter layer 7 at the top is the smallest and the distribution is the densest. After multi-layer filtration, the water contained in the biogas is gradually and fully absorbed for multiple times, thereby effectively reducing the incomplete absorption of water when the biogas is discharged, increasing the dehydration efficiency in the biogas dehydration link, and also improving the dehydration effect, so that the biogas can enter the desulfurization tank in a dehydrated state for desulfurization treatment. The multi-layer filter layer 7 designed in this solution is three-layer as shown in the attached figure, and multiple layers of filter layer 7 can also be used according to specific needs. The condensation guide stem 8 in the middle of the filter layer 7 is made of glass, and the pointed cone design at the bottom is conducive to the dripping of water after condensation.

Claims

1. A biogas dehydration device for garbage power generation, comprising a tank body (1) and a tank cover (2), characterized in that: An air inlet pipe (3) is installed at the lower part of the tank body (1), and an exhaust pipe (4) is installed at the upper part of the tank body (1); a diversion component (5) for diverting biogas is installed inside the air inlet pipe (3); The tank body (1) is provided with a multi-layer processing component inside, and the multi-layer processing component is composed of a multi-layer filter body. The outside of the filter body is a fitting ring (6) that is attached to the inner wall of the tank body (1). The middle part of the fitting ring (6) is a filter layer (7). The density of the filter mesh holes of the multi-layer filter layer (7) decreases successively, and the aperture of the filter mesh holes increases successively. The middle part of the multi-layer filter body is assembled by a condensation guide rod (8).

2. The biogas dehydration device for garbage power generation according to claim 1, characterized in that: The filter layer (7) is in an inverted V shape, and the bottom of the inverted V shape is an arc transition.

3. The biogas dehydration device for garbage power generation according to claim 1, characterized in that: The diversion assembly (5) includes a spherical transition body (9) arranged in the middle of the air inlet pipe (3), a diversion sphere (10) is arranged inside the spherical transition body (9), the diversion sphere (10) is an ellipsoid, and the interior of the diversion sphere (10) is a cavity structure, and two groups of mutually symmetrical diversion holes (11) are opened on the diversion sphere (10).

4. The biogas dehydration device for garbage power generation according to claim 3, characterized in that: The diversion holes (11) are distributed at equal intervals, and the diameters of the two groups of diversion holes (11) are distributed at equal differences.

5. The biogas dehydration device for garbage power generation according to claim 1, characterized in that: The bottom of the condensation guide rod (8) is in a pointed cone shape.

6. The biogas dehydration device for garbage power generation according to claim 1, characterized in that: Two sets of lifting handles (12) are installed on the top of the tank cover (2), a pressure gauge (13) is installed in the middle of the top of the tank cover (2), and a sewage pipe (14) is installed at the bottom of the tank body (1).

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