Honeycomb type biogas digester structure

Abstract

The utility model discloses a honeycomb type biogas digester structure which is formed by combining a plurality of hexagonal digester bodies, the whole biogas digester is of a honeycomb type structure, each single digester body can be used independently, and several or more digester bodies can be used in a combined manner; a single pool body is of a regular hexagon structure and is divided into an upper part and a lower part, the middle is separated by a separation net, the lower layer is a material storage pool, the upper layer is divided into a left-middle-right structure, the left side and the right side are air storage chambers, the middle is a water pressure chamber, and the water pressure chamber also serves as a material inlet and outlet. Partition walls of the three chambers on the upper layer are beam bodies built on bearing walls of the pool body, and the partition walls can serve as driving routes for operation of mechanical equipment while the gas storage chambers on the two sides are kept sealed. When a plurality of single tank bodies are combined to form a large-scale biogas digester, the beam bodies are connected in series to form an operation route, and mechanical operation is carried out during maintenance and use of the biogas digester, so that large-scale management and operation of the biogas digester are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of biogas tanks, in particular to a honeycomb biogas tank structure. Background Art

[0002] Biogas, a biomass energy source, is produced through the fermentation of organic matter such as straw, feces, and kitchen waste. Compared to traditional fossil energy, it offers advantages such as a wide range of raw material sources, clean and environmentally friendly production, low cost, and energy conservation and carbon reduction. Furthermore, it has a wide range of applications, including household cooking, heating, and lighting. With large-scale development, it can also serve as a fuel for power generation and a raw material for biochemical products. Biogas waste can also be used as organic fertilizer for crop growth. Therefore, biogas is a fully sustainable and circular form of energy utilization from a bio-based source, worthy of large-scale development.

[0003] As my country's agricultural and animal husbandry industries become increasingly large-scale, and the urban waste sorting industry matures, a large amount of waste, including crop straw, animal manure, and kitchen waste, is generated. Pile-up of straw and decaying manure are common in fields and around farms. To rationally dispose of and utilize this large amount of waste, the construction of large-scale biogas digesters is highly worthy of promotion.

[0004] However, the current biogas industry is developing very slowly. Traditional biogas tanks are generally used by households alone or in combination with several other tanks. When scaled up, traditional biogas tanks require a lot of work to load and unload materials, and lack access for mechanical equipment, making it difficult to achieve scale advantages. Ultimately, existing biogas tanks cannot be used on a large scale. To address the technical issues of biogas tanks being difficult to scale up, this utility model proposes a honeycomb biogas tank structure. Utility Model Content

[0005] In response to the structural design problems of the above-mentioned traditional biogas tanks, the present invention provides a honeycomb biogas tank structure. The honeycomb biogas tank structure proposed in this solution is a large-scale structure composed of multiple single tank bodies, and the overall structure is a honeycomb structure, in which each single tank body can be used independently or multiple tank bodies can be used in combination.

[0006] A honeycomb biogas tank structure, comprising a plurality of single tank bodies, each of which is a polygonal structure. Each single tank body comprises a storage chamber disposed at the bottom for storing biogas raw materials, a first gas storage chamber disposed at the top for storing biogas, and a second gas storage chamber, wherein a hydraulic chamber is disposed between the first gas storage chamber and the second gas storage chamber for regulating the internal pressure of the first gas storage chamber and the second gas storage chamber.

[0007] The polygonal structure is a regular hexagon, and its six walls are all load-bearing walls. The hydraulic chamber includes two beams fixedly mounted on any two opposing load-bearing walls, and an isolation plate removably and sealingly contacting the bottom ends between the two beams. Both ends of the isolation plate are respectively in removable and sealing contact with the two opposing load-bearing walls. The two beams are vertically arranged and parallel to each other.

[0008] Isolation nets are horizontally fixed to the bottom ends of the beam body and the two adjacent load-bearing walls.

[0009] The isolation net has fine meshes, which allow gas to pass through while blocking the material from floating upward, thereby preventing the material from crusting and allowing the material to fully ferment and mature.

[0010] The hydraulic chamber is a sealed structure consisting of beams on both sides and a separation plate at the bottom. The hydraulic chamber can also be used as a feeding port. When feeding and removing materials, the separation plate can be removed for material feeding operations.

[0011] The first gas storage chamber and the second gas storage chamber are both formed by surrounding the beam body, the two adjacent load-bearing walls, and the isolation net.

[0012] The top of the beam is flush with the top of the load-bearing wall and the upper surface has a certain width, preferably an inverted triangular structure. The beams are arranged parallel to each other to facilitate the operation of mechanical equipment.

[0013] A pressure-stabilizing water filter is fixedly arranged in the water pressure room, and the pressure-stabilizing water filter is connected via an external conduit.

[0014] The pressure-stabilizing water filter is fixedly connected to one end of the air duct one and the air duct two, and the other ends of the air duct one and the air duct two are respectively connected to the inside of the air storage chamber one and the air storage chamber two.

[0015] The two adjacent single pool bodies share an adjacent load-bearing wall, the two adjacent beam bodies are connected end to end, and the two adjacent single pool bodies are connected to each other through the external conduit, and the external conduit is fixedly connected to the air storage bag.

[0016] The mechanized operation is performed by an operating vehicle with a mechanical arm walking above the beam body, and the mechanical arm grabs and puts materials such as straw.

[0017] The gas storage bag is a biogas terminal collection device, through which available biogas is provided to various places where biogas is needed.

[0018] The tops of the air storage chamber 1, the air storage chamber 2 and the water pressure room are respectively provided with sealing covers.

[0019] A one-way valve is provided in the pressure-stabilizing water filter to ensure that the biogas in the gas storage bag does not flow back.

[0020] A raised limiting structure is provided on one side where the beam body is connected to the isolation plate.

[0021] The organic materials in the storage chamber float and accumulate and contact the isolation plate, so that the isolation plate is subjected to an upward force, and the accumulated materials isolate the gas, so that the isolation plate and the beam body are sealed.

[0022] The work vehicle with a robotic arm belongs to the existing technology. The work vehicles on the market can meet the work requirements, and the specific structure will not be described in detail.

[0023] A method for constructing and using the above-mentioned honeycomb-type large-scale biogas digester includes:

[0024] P1. Construct single tank bodies, and use the first single tank body as the starting point. Build the required single tank bodies in sequence by sharing walls. Each single tank body shares walls with each other to achieve the optimal floor space. Each single tank body is respectively provided with the aforementioned beam body, air storage chamber, hydraulic room, isolation net, isolation plate, pressure-stabilizing water filter, and air duct. Then, the tank bodies are interconnected by the aforementioned method to form a honeycomb structure.

[0025] P2. The beams connected end to end serve as the driving operation route at the upper end of each tank body. The operating vehicle with a robotic arm travels on the beams, opens the isolation board and puts in the materials. The staff determines the amount of material to be added by observing the height of the material liquid level from the bottom of the beams, and closes the isolation board when there is enough material.

[0026] P3. Check the pressure gauge on the pressure-stabilizing water filter to determine gas production. When the gas reaches a certain pressure, the pressure-stabilizing water filter automatically collects biogas into a gas storage bag. When the gas storage bag is full and the pressure in the gas storage chamber is too high, the safety valve on the pressure-stabilizing water filter discharges the biogas out of the biogas tank. When the pressure in the gas storage chamber stops increasing, open the isolation panel and remove the material using a robotic arm.

[0027] P4. Add the corresponding amount of material according to the amount of material taken out in the above step P3, and continue to repeat steps P2 and P3.

[0028] Due to the adoption of the above technical solution, compared with the prior art, the technical effects achieved by the present invention are:

[0029] (1) The single biogas tanks of the utility model can be connected to each other through a pressure-stabilizing water filter, and multiple tanks can be used together to form a large-scale biogas production structure. The biogas raw materials are centrally processed, the processing speed is fast, and the biogas conversion rate is high.

[0030] (2) When multiple tanks are used together, a working vehicle with a robotic arm can travel above the beam, grabbing and placing materials such as straw through the robotic arm, reducing the labor intensity of workers and improving the efficiency of placing and taking materials.

[0031] (3) An isolation net is provided with fine mesh holes, which allows gas to pass through while blocking the material from floating upward, thus preventing the material from crusting and allowing the material to fully ferment and mature.

[0032] (4) An isolation plate is installed at the bottom of the hydraulic chamber to isolate the storage chamber and the hydraulic chamber, ensuring that all the generated biogas enters the gas storage chamber and is then stored in the gas storage bag through the pressure-stabilizing water filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the single pool structure of the utility model.

[0034] Figure 2 It is a schematic diagram of the single pool structure of the utility model.

[0035] Figure 3 It is a schematic diagram of the single pool structure of the utility model.

[0036] Figure 4 It is a schematic diagram of the single pool structure of the utility model.

[0037] Figure 5 It is a schematic diagram of the connection between the pressure-stabilizing water filter, the external conduit and the air storage bag of the utility model.

[0038] Figure 6 This is a schematic diagram of sixteen combinations of large-scale biogas tanks of the utility model.

[0039] Figure 7 It is a schematic diagram of 256 combinations of large-scale biogas tanks of the present utility model.

[0040] Figure 8 It is a schematic diagram of a large-scale biogas tank assembly of the utility model.

[0041] Legend: 1. Single tank body; 2. Isolation net; 3. Beam; 4. Isolation board; 5. Air duct 1; 6. Pressure-stabilizing water filter; 7. Air storage chamber 1; 8. Water pressure room; 9. Air storage chamber 2; 10. Load-bearing wall; 11. Storage room; 12. Air duct 2; 13. External duct; 14. Air storage bag. DETAILED DESCRIPTION

[0042] 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.

[0043] Example 1: Combined with Figure 1-Figure 5 A modular honeycomb-type large-scale biogas digester with sixteen cells is described.

[0044] The honeycomb-type large-scale biogas digester is composed of multiple single tank bodies 1 connected to each other. Each single tank body 1 is a regular hexagon with a hexagonal side length of 1640mm and a wall thickness of 35mm. The height of the tank body can be built to 2200mm. The isolation net 2 and isolation plate 4 divide the interior of the single tank body into two layers, the lower layer is 1400mm high and is the storage room 11, and the upper layer is a cylindrical structure with a height of 800mm. The cylindrical structure includes gas storage chamber 1 7, gas storage chamber 2 9, water pressure room 8, and beam body 3; the lower ends of gas storage chamber 1 7 and gas storage chamber 2 9 are separated from the storage chamber 11 by isolation net 2; isolation plate 4 separates the water pressure room 8 from the storage chamber 11, and the isolation net 2 can prevent the material from floating up, keeping the material from crusting and fully fermented and matured.

[0045] The organic materials in the storage chamber 11 float and accumulate and come into contact with the isolation plate 4, causing the isolation plate 4 to be subjected to an upward force. The floating and accumulated materials isolate the gas, thereby sealing the isolation plate 4 from the beam 3 and the two opposite load-bearing walls 10. The height of the floating and accumulated materials changes due to the pressure changes in the gas storage chamber 1 7 and the gas storage chamber 2 9, thereby causing the isolation plate 4 to float between the bottom end of the beam 3 and the limiting structure of the beam 3.

[0046] After the isolation plate 4 is removed, the hydraulic chamber 8 is used as the material inlet and outlet. When the isolation plate 4 is installed at the bottom of the hydraulic chamber 8, the isolation plate 4 is sealed against the beam 3 and the load-bearing wall 10. After biogas is generated in the storage chamber 11, the gas will enter the gas storage chamber 1 7 and the gas storage chamber 2 9 due to the obstruction of the isolation plate 4 at the lower end of the hydraulic chamber 8. The gas guide pipe 1 5 and the gas guide pipe 2 12 are installed between the gas storage chamber 1 7 and the gas storage chamber 2 9 and the hydraulic chamber 8. The biogas in the gas storage chamber 1 7 and the gas storage chamber 2 9 is guided through the gas guide pipe 1 5 and the gas guide pipe 2 12 and then guided through the pressure-stabilizing water filter 6 to the gas storage bag 14.

[0047] The gas production situation can be determined by checking the pressure gauge on the pressure-stabilizing water filter 6. When the gas volume reaches a certain pressure, the pressure-stabilizing water filter 6 automatically collects biogas into the gas storage bag 14. When the gas storage bag 14 is full of biogas and the pressure in the gas storage chamber 1 7 and the gas storage chamber 2 9 is too high, the biogas is discharged to the outside of the biogas tank through the safety valve provided on the pressure-stabilizing water filter 6, thereby achieving the purpose of controlling the internal pressure of the gas storage chamber 1 7 and the gas storage chamber 2 9 to be stable. When the pressure in the gas storage chamber 1 7 and the gas storage chamber 2 9 no longer continues to increase, the isolation plate 4 is opened and the material is removed by a work vehicle with a robotic arm. The pressure-stabilizing water filter 6 can also filter out excess water contained in the biogas; the top of the pressure-stabilizing water filter 6 is connected to an external conduit 13, and each single tank body 1 is interconnected through the external conduit 13, thereby forming a honeycomb-type large-scale biogas tank.

[0048] The single pool bodies are arranged in a honeycomb structure, and the required number of pool bodies are constructed according to actual needs. The beam bodies 3 on each single pool body 1 are connected end to end. The beam bodies 3 connected end to end form a driving operation route for the working vehicle with a robotic arm, and also serve as the isolation wall of the air storage chamber 1 7, the air storage chamber 2 9 and the water pressure room 8. The top of the beam body 3 has a certain width and spacing, which can be constructed according to the actual working conditions, such as constructing two parallel inverted triangles with a spacing of 800mm, a top width of 240mm, and a bottom width of 20mm; the top of the beam body 3 is flush with the top of the single pool body 1, and the bottom of the beam body 3 is flush with the isolation net 2.

[0049] Example 2: Large-scale biogas digester assembly.

[0050] See also Figure 6-Figure 8 Sixteen individual tanks 1 are combined into a large unit, arranged in four rows and four columns. The beams 3 in each column connect end to end to form an operating track. The four tanks in each column are connected to form a small unit via a pressure-stabilizing water filter 6. The four small units connect the air storage chambers 1 7 and 2 9 of two adjacent individual tanks 1 via air guide pipes 1 5 and 2 12, forming a large unit. This approach speeds up construction and facilitates maintenance and management.

[0051] Based on the above sixteen large units, according to actual needs, multiple large units can be combined into larger honeycomb-type large-scale biogas digesters by connecting the gas storage chambers to each other through air ducts.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0053] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A honeycomb biogas tank structure, characterized in that: The invention comprises a plurality of single tank bodies (1), wherein the single tank bodies (1) are polygonal in structure, and the single tank bodies (1) comprise a storage chamber (11) arranged at the bottom and used for storing biogas raw materials, a gas storage chamber 1 (7) and a gas storage chamber 2 (9) arranged at the top and used for storing biogas, and a water pressure chamber (8) is arranged between the gas storage chamber 1 (7) and the gas storage chamber 2 (9) for regulating the internal pressure of the gas storage chamber 1 (7) and the gas storage chamber 2 (9); The polygonal structure is a regular hexagon, and its six walls are all load-bearing walls (10). The water pressure room (8) comprises two beams (3) vertically fixedly connected to any two opposite load-bearing walls (10), and an isolation plate (4) detachably sealed in contact with the bottom ends between the two beams (3). Both ends of the isolation plate (4) are detachably sealed in contact with the two opposite load-bearing walls (10), and the two beams (3) are vertically arranged and parallel to each other. Isolation nets (2) are horizontally fixed to the bottom ends of the beam body (3) and the two adjacent load-bearing walls (10).

2. The honeycomb biogas tank structure according to claim 1, characterized in that: The top end of the beam body (3) is flush with the top end of the load-bearing wall (10).

3. The honeycomb biogas tank structure according to claim 1, characterized in that: A pressure-stabilizing water filter (6) is fixedly provided in the water pressure room (8), and the pressure-stabilizing water filter (6) is connected to the air storage bag (14) via an external conduit (13).

4. The honeycomb biogas tank structure according to claim 3, characterized in that: The pressure-stabilizing water filter (6) is fixedly connected to one end of the air guide pipe (5) and the air guide pipe (12), and the other ends of the air guide pipe (5) and the air guide pipe (12) are respectively connected to the inside of the air storage chamber (7) and the air storage chamber (9).

5. The honeycomb biogas tank structure according to claim 1, characterized in that: Two adjacent single pool bodies (1) share an adjacent load-bearing wall (10), and the adjacent beam bodies (3) are connected end to end.

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