Anaerobic digestion biogas collection device

Abstract

The utility model relates to biogas collection technical field especially is an anaerobic digestion biogas collection device, including collection jar body, the top edge and bottom end edge of collection jar body side are all outwardly bulging and form the limiting ring, install fireproof layer and heat insulating layer between two limiting rings in proper order, three interval plates are installed in collection jar body inner wall from bottom to top in proper order. The utility model has the advantages of: through with collection jar body as the main body, the outer wall of collection jar body is installed with fireproof layer and heat insulating layer respectively, and then forms the fireproof barrier on the outer wall of collection jar body, and the protective layer and heat insulating layer cooperate with each other, can effectively block the heat conduction to collection jar body when the fire occurs, reduces the temperature of collection jar body, makes the temperature of collection jar body be in the safe range, and the inner part of collection jar body is divided into three parts by multiple interval plates, and the interval plate is convenient for improving the structural strength of collection jar body, avoids the deformation of itself.

Description

Technical Field

[0001] This utility model relates to the field of biogas collection technology, and in particular to a biogas collection device for anaerobic digestion. Background Technology

[0002] Anaerobic digestion of sludge refers to a digestion technology in which facultative and anaerobic bacteria decompose biodegradable organic matter in sludge into CH4, CO2, H2O, and H2S under anaerobic conditions. It can remove 30% to 50% of the organic matter in waste and stabilize it. It is one of the commonly used methods for sludge reduction and stabilization and is the most economical sludge treatment method in large-scale wastewater treatment plants. The gas produced by the treated sludge can be used as clean energy after filtration and recovery. It is mostly liquefied and stored. However, existing storage is mostly in the form of steel cylinders, which do not have protective functions. In the event of a fire, these steel cylinders will explode when the temperature reaches a certain level, with unimaginable consequences. Based on this, this application proposes an anaerobic digestion biogas collection device to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an anaerobic digestion biogas collection device.

[0004] The purpose of this utility model is achieved through the following technical solution: an anaerobic digestion biogas collection device, including a collection tank, wherein the top edge and bottom edge of the side of the collection tank both protrude outward to form a limiting ring, a fireproof layer and a heat insulation layer are installed between the two limiting rings in sequence, three partition plates are installed on the inner wall of the collection tank from bottom to top, a first valve is installed in the middle of the bottom partition plate, a one-way valve is installed in the middle of the other two partition plates, and a second valve is installed in the middle of the top of the collection tank.

[0005] Optionally, the top of the collection tank is raised upwards, and the collection tank is made of steel material welded together.

[0006] Optionally, the outer diameter of the two limiting rings is the same as the outer diameter of the insulation layer.

[0007] Optionally, the thickness of the heat insulation layer is greater than the thickness of the fireproof layer, and the material of the heat insulation layer is ceramic.

[0008] Optionally, the fireproof layer is made of high-density felt, and the fireproof layer is coated with adhesive on both the inner and outer walls.

[0009] This utility model has the following advantages:

[0010] This anaerobic digestion biogas collection device uses a collection tank as the main body, with fireproof and heat insulation layers installed on the outer wall of the collection tank. This forms a fire barrier on the outer wall of the collection tank. The protective and heat insulation layers work together to effectively block heat conduction to the collection tank in the event of a fire, reducing the temperature of the collection tank and keeping it within a safe range. In addition, multiple partitions divide the interior of the collection tank into three parts, which helps to improve the structural strength of the collection tank and prevent deformation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0013] Figure 3 This is a cross-sectional structural diagram of the collection tank in this utility model.

[0014] In the diagram: 1-Collection tank, 2-Insulation layer, 3-Second valve, 4-Spare plate, 5-One-way valve, 6-First valve, 7-Fireproof layer, 8-Limiting ring. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0016] like Figures 1 to 3 As shown, an anaerobic digestion biogas collection device includes a collection tank 1. The top and bottom edges of the collection tank 1 protrude outwards to form limiting rings 8. A fireproof layer 7 and a heat insulation layer 2 are sequentially installed between the two limiting rings 8. Three partition plates 4 are sequentially installed on the inner wall of the collection tank 1 from bottom to top. A first valve 6 is installed in the middle of the bottom partition plate 4, and one-way valves 5 are installed in the middle of the other two partition plates 4. A second valve 3 is installed in the middle of the top of the collection tank 1. The first valve 6 is used to connect with an external biogas inlet pipe, while the second valve 3 is used to connect with a biogas outlet pipe to facilitate the release of biogas. Simultaneously, the two one-way valves 5 prevent biogas backflow.

[0017] As an optional technical solution of this utility model, the top of the collection tank 1 is raised upwards, and the collection tank 1 is made of steel material welded together, which is convenient.

[0018] As an optional technical solution of this utility model, the outer diameter of the two limiting rings 8 is the same as the outer diameter of the heat insulation layer 2. This makes it easy for the heat insulation layer 2 and the limiting rings 8 to form a circular outer wall, which can block the installation position of the heat insulation layer 2 and prevent the top and bottom of the heat insulation layer 2 from being deformed by external impact.

[0019] As an optional technical solution of this utility model, the thickness of the heat insulation layer 2 is greater than the thickness of the fireproof layer 7. The material of the heat insulation layer 2 is ceramic fiber. Ceramic fiber is a high-performance fiber with inorganic materials (such as alumina, silicon dioxide, etc.) as the main body. With its lightweight, high temperature resistance, and low thermal conductivity, it is widely used in industrial and special fields. It can withstand high temperatures of 1000°C to 1600°C for a long time. As a heat insulation layer in high-temperature furnaces, metallurgical equipment and spacecraft thermal protection systems, it effectively reduces heat loss and protects the equipment structure, thereby facilitating effective protection of the collection tank 1 and reducing the burning of the collection tank 1 by external fire.

[0020] As an optional technical solution of this utility model, the fireproof layer 7 is made of high-dimensional felt. The fireproof layer 7 is coated with adhesives on both the inner and outer walls. High-dimensional felt refers to a type of functional industrial or domestic felt product made from fiber materials (such as palm, ceramic fiber or synthetic fiber) through a specific process. High-dimensional felt mainly uses inorganic fibers such as alumina and silicon dioxide as the base material. It is resistant to high temperature (1600℃) and has low thermal conductivity. It is used for high-temperature scenarios such as heat insulation and sealing of industrial furnaces and kilns. This makes it easy to cooperate with the heat insulation layer 2 to protect the collection tank 1 together.

[0021] In summary, the features, assembly method, usage process, and functions of each component in this utility model are as follows: By using the collection tank 1 as the main body, and installing a fireproof layer 7 and a heat insulation layer 2 on the outer wall of the collection tank 1, a fire barrier is formed on the outer wall of the collection tank 1. At the same time, the protective layer 8 and the heat insulation layer 2 work together to effectively block heat from being conducted to the collection tank 1 in the event of a fire, thereby reducing the temperature of the collection tank 1 and keeping the temperature of the collection tank 1 within a safe range. Meanwhile, multiple partition plates 4 divide the interior of the collection tank 1 into three parts. The partition plates 4 help to improve the structural strength of the collection tank 1 and prevent it from deforming.

[0022] 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 biogas collection device for anaerobic digestion, characterized in that: The collection tank (1) includes a collection tank body (1), on which the top and bottom edges of the side of the collection tank body (1) protrude outward to form a limiting ring (8). A fireproof layer (7) and a heat insulation layer (2) are installed between the two limiting rings (8). Three partition plates (4) are installed on the inner wall of the collection tank body (1) from bottom to top. A first valve (6) is installed in the middle of the bottom partition plate (4). A one-way valve (5) is installed in the middle of the other two partition plates (4). A second valve (3) is installed in the middle of the top of the collection tank body (1).

2. The anaerobic digestion biogas collection device according to claim 1, characterized in that: The top of the collection tank (1) is raised upwards, and the collection tank (1) is made of steel material welded together.

3. The anaerobic digestion biogas collection device according to claim 1, characterized in that: The outer diameter of the two limiting rings (8) is the same as the outer diameter of the heat insulation layer (2).

4. The anaerobic digestion biogas collection device according to claim 1, characterized in that: The thickness of the heat insulation layer (2) is greater than the thickness of the fireproof layer (7), and the material of the heat insulation layer (2) is ceramic fiber.

5. The anaerobic digestion biogas collection device according to claim 1, characterized in that: The fireproof layer (7) is made of high-dimensional felt, and the fireproof layer (7) is coated with adhesive on both the inner and outer walls.

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