Continuous fermentation methane tank with heat exchange interlayer and vacuum insulation

Abstract

The utility model discloses a continuous fermentation marsh gas pool with heat exchange interlayer and vacuum heat preservation, including marsh gas pool main part, the top of marsh gas pool main part is respectively threadedly connected with marsh gas discharge pipe and excrement inlet pipe, and the front of marsh gas pool main part is provided with stirring motor, and one side of marsh gas pool main part is fixed with heating water tank, and the top of heating water tank is threadedly connected with reflux tube, and the inside of heating water tank is provided with heating plate, and the inside welding of marsh gas pool main part has marsh gas pool inner shell, and the vacuum cavity is set up between marsh gas pool main part and marsh gas pool inner shell, and the outer wall of marsh gas pool inner shell is respectively provided with temperature sensor and heat exchange pipe, and the inner wall of marsh gas pool main part is provided with heat preservation pad, through vacuum cavity, heat exchange pipe and heating water tank, improve the heat exchange capacity and heat preservation performance of marsh gas pool, make fermentation marsh gas pool can effectively maintain suitable temperature, and guarantee the balance of heat, avoid causing energy waste and influence fermentation efficiency, improve the practicality and overall performance of marsh gas pool finally.

Description

Technical Field

[0001] This utility model relates to the field of fermentation biogas digester technology, specifically a continuous fermentation biogas digester with heat exchange jacket and vacuum insulation. Background Technology

[0002] A biogas digester is a device that uses anaerobic microorganisms to decompose organic waste (such as livestock and poultry manure, crop straw, kitchen waste, etc.) into biogas (mainly composed of methane and carbon dioxide), biogas slurry, and biogas residue.

[0003] Existing patent document CN219031973U discloses a biogas digester based on livestock and poultry manure fermentation, including a closed fermentation tank. The fermentation tank is internally divided into an aerobic fermentation tank and an anaerobic fermentation tank by a partition wall, with the two tanks connected at the top. A feed hopper is installed at the top of the fermentation tank, connected to the aerobic fermentation tank. This utility model relates to the field of livestock and poultry manure treatment technology. This biogas digester based on livestock and poultry manure fermentation, by setting up a semi-closed fermentation tank, allows for partial connection between the aerobic and anaerobic fermentation tanks, thus enabling rapid consumption of oxygen in the anaerobic fermentation tank.

[0004] Existing biogas digesters suffer from significant thermal energy management problems in actual operation: the fermentation process of manure itself releases heat, but a stable temperature environment is required for efficient operation. However, due to insufficient heat exchange capacity and poor insulation performance, the biogas digester cannot effectively maintain a suitable temperature, resulting in uneven heat distribution, energy waste, and reduced fermentation efficiency. Ultimately, this reduces the practicality and overall performance of the biogas digester. To address this issue, we propose a continuous fermentation biogas digester with a heat exchange jacket and vacuum insulation. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a continuous fermentation biogas digester with a heat exchange jacket and vacuum insulation, thereby solving the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a continuous fermentation biogas digester with heat exchange jacket and vacuum insulation, comprising a biogas digester body, a biogas discharge pipe and a manure inlet pipe threadedly connected to the top of the biogas digester body, a stirring motor installed on the front of the biogas digester body, a heating water tank bolted to one side of the biogas digester body, a return pipe threadedly connected to the top of the heating water tank, a heating plate installed inside the heating water tank, a biogas digester inner shell welded inside the biogas digester body, a vacuum cavity opened between the biogas digester body and the biogas digester inner shell, a temperature sensor and a heat exchange pipe respectively installed on the outer wall of the biogas digester inner shell, and a heat insulation pad installed on the inner wall of the biogas digester body.

[0009] Preferably, the drive end of the stirring motor is fixed to a stirring shaft via a coupling, and a stirring rod is welded to the outside of the stirring shaft.

[0010] Preferably, a sewage pipe and a support frame are welded to the bottom of the biogas digester body, and a solenoid valve is threaded to one end of the sewage pipe.

[0011] Preferably, a sewage discharge motor is installed at the other end of the sewage discharge pipe, and a conveying shaft is fixed to the drive end of the sewage discharge motor via a coupling. Conveying blades are welded to the outside of the conveying shaft.

[0012] Preferably, the front of the heating water tank is threaded with a delivery pipe, one end of the delivery pipe is threaded with a pump, and the pump is threaded with the heat exchange pipe.

[0013] Preferably, an inlet pipe and an outlet pipe are threadedly connected to one side of the heating water tank, and both the inlet pipe and the outlet pipe are cylindrical.

[0014] (III) Beneficial Effects

[0015] This utility model provides a continuous fermentation biogas digester with a heat exchange jacket and vacuum insulation, which has the following beneficial effects:

[0016] (1) This type of continuous fermentation biogas digester with heat exchange jacket and vacuum insulation, through the vacuum chamber, heat exchange pipes and heating water tank, allows manure to be transported into the main body of the biogas digester through the manure inlet pipe during use. At this time, the manure can start fermentation. During the fermentation process, the stirring motor drives the stirring shaft to rotate, and the stirring rod on the stirring shaft can stir the manure. When the manure generates an appropriate amount of heat during fermentation, the temperature sensor can monitor the temperature. When the temperature is sufficient, the heat can be transferred to the heat exchange pipes through the inner shell of the biogas digester. The pump operates to draw water through the delivery pipe, and the water enters the heat exchange pipes for heat exchange, raising the water temperature. Then the water flows back to the heating water tank through the return pipe. When the manure fermentation temperature reaches the desired level, the water temperature will rise. When the temperature is insufficient, the heating plate can be activated to heat the water. After the water is heated, the pump runs and draws water through the delivery pipe. The water enters the heat exchange tube for heat exchange, and the heat is transferred to the manure, thus bringing the manure to the fermentation temperature. During the fermentation process, the biogas digester is equipped with a vacuum chamber, which, along with the insulation pad, helps to keep the temperature warm and prevent heat loss. Biogas is also produced during fermentation. When biogas is needed, it can be discharged through the biogas exhaust pipe. This improves the heat exchange capacity and insulation performance of the biogas digester, enabling it to effectively maintain a suitable temperature and ensure a balanced heat distribution. This avoids energy waste and affects fermentation efficiency, ultimately improving the practicality and overall performance of the biogas digester. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial structural schematic diagram of the main body of the biogas digester of this utility model;

[0019] Figure 3 This is a cross-sectional view of the sewage pipe of this utility model;

[0020] Figure 4 This is a partial structural schematic diagram of the heating water tank of this utility model.

[0021] In the diagram: 1. Main body of biogas digester; 101. Biogas discharge pipe; 102. Manure inlet pipe; 2. Sewage pipe; 3. Solenoid valve; 4. Sewage discharge motor; 401. Conveying shaft; 402. Conveying blade; 5. Support frame; 6. Heating water tank; 601. Heating plate; 7. Inlet pipe; 8. Outlet pipe; 9. Return pipe; 10. Conveying pipe; 11. Pump; 12. Inner shell of biogas digester; 13. Vacuum chamber; 1301. Temperature sensor; 14. Heat exchanger tube; 15. Insulation pad; 16. Stirring motor; 17. Stirring shaft; 18. Stirring rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a continuous fermentation biogas digester with heat exchange jacket and vacuum insulation, including a biogas digester body 1, a biogas discharge pipe 101 and a manure inlet pipe 102 threadedly connected to the top of the biogas digester body 1, a stirring motor 16 installed on the front of the biogas digester body 1, a heating water tank 6 bolted to one side of the biogas digester body 1, a return pipe 9 threadedly connected to the top of the heating water tank 6, a heating plate 601 installed inside the heating water tank 6, a biogas digester inner shell 12 welded inside the biogas digester body 1, a vacuum cavity 13 opened between the biogas digester body 1 and the biogas digester inner shell 12, a temperature sensor 1301 and a heat exchange pipe 14 installed on the outer wall of the biogas digester inner shell 12, and a heat insulation pad 15 installed on the inner wall of the biogas digester body 1.

[0024] Furthermore, the drive end of the mixing motor 16 is fixed to the mixing shaft 17 via a coupling. A mixing rod 18 is welded to the outside of the mixing shaft 17. By starting the mixing motor 16, the mixing motor 16 drives the mixing shaft 17 to rotate, and the mixing rod 18 on the mixing shaft 17 can mix the feces.

[0025] Furthermore, a sewage pipe 2 and a support frame 5 are welded to the bottom of the biogas digester body 1. One end of the sewage pipe 2 is threaded with a solenoid valve 3, and the sewage channel can be opened by opening the solenoid valve 3.

[0026] Furthermore, a sewage discharge motor 4 is installed at the other end of the sewage discharge pipe 2. The drive end of the sewage discharge motor 4 is fixed with a conveying shaft 401 through a coupling. A conveying blade 402 is welded to the outside of the conveying shaft 401. By starting the sewage discharge motor 4, the sewage discharge motor 4 drives the conveying blade 402 to rotate through the conveying shaft 401, and the conveying blade 402 can convey the feces. At the same time, the solenoid valve 3 is opened, and the feces can be discharged.

[0027] Furthermore, a delivery pipe 10 is threadedly connected to the front of the heating water tank 6, and a pump 11 is threadedly connected to one end of the delivery pipe 10. The pump 11 is threadedly connected to the heat exchange tube 14. When the pump 11 runs, it draws water through the delivery pipe 10, and the water enters the heat exchange tube 14 for heat exchange.

[0028] Furthermore, an inlet pipe 7 and an outlet pipe 8 are threadedly connected to one side of the heating water tank 6. Both the inlet pipe 7 and the outlet pipe 8 are cylindrical. Water can be added to the heating water tank 6 through the inlet pipe 7, and heated water can be discharged through the outlet pipe 8.

[0029] Working Principle: After installation, first check the installation, fixation, and safety protection of this utility model. When using the fermentation biogas digester, manure is transported into the main body 1 of the biogas digester through the manure inlet pipe 102. At this time, the manure can begin fermentation. During the fermentation process, the stirring motor 16 drives the stirring shaft 17 to rotate, and the stirring rod 18 on the stirring shaft 17 can stir the manure. When the manure generates an appropriate amount of heat during fermentation, the temperature sensor 1301 can monitor the temperature. When the temperature is sufficient, the heat can be transferred to the heat exchange tube 14 through the inner shell 12 of the biogas digester. Meanwhile, the pump 11 operates to draw water through the delivery pipe 10. The water enters the heat exchange tube 14 for heat exchange, raising the water temperature. Subsequently, the water flows back to the heating water tank 6 through the return pipe 9. When the manure fermentation temperature is insufficient, the heating plate 601 can be activated to heat the water. Water is heated and pump 11 operates to draw water through delivery pipe 10. The water enters heat exchange pipe 14 for heat exchange, and the heat is transferred to the manure, thus raising the manure to fermentation temperature. During fermentation, a vacuum chamber 13 is provided in the biogas digester. The vacuum chamber 13 and the heat insulation pad 15 can keep the manure warm and prevent heat loss. Biogas is produced during fermentation. When biogas is needed, it can be discharged through biogas discharge pipe 101. When manure needs to be discharged, the operator starts the sewage discharge motor 4. The sewage discharge motor 4 drives the conveyor blade 402 to rotate through the conveyor shaft 401, and the conveyor blade 402 can transport the manure. At the same time, the solenoid valve 3 is opened, and the manure can be discharged. This completes the use of this utility model. This utility model has a simple structure and is safe and convenient to use.

[0030] 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 continuous fermentation biogas digester with a heat exchange jacket and vacuum insulation, comprising a biogas digester body (1), characterized in that: The top of the biogas digester body (1) is threaded with a biogas discharge pipe (101) and a manure inlet pipe (102). A stirring motor (16) is installed on the front of the biogas digester body (1). A heating water tank (6) is bolted to one side of the biogas digester body (1). A return pipe (9) is threaded to the top of the heating water tank (6). A heating plate (601) is installed inside the heating water tank (6). A biogas digester inner shell (12) is welded inside the biogas digester body (1). A vacuum cavity (13) is opened between the biogas digester body (1) and the biogas digester inner shell (12). A temperature sensor (1301) and a heat exchange pipe (14) are installed on the outer wall of the biogas digester inner shell (12). An insulation pad (15) is installed on the inner wall of the biogas digester body (1).

2. The continuous fermentation biogas digester with heat exchange jacket and vacuum insulation according to claim 1, characterized in that: The driving end of the stirring motor (16) is fixed with a stirring shaft (17) via a coupling, and a stirring rod (18) is welded to the outside of the stirring shaft (17).

3. The continuous fermentation biogas digester with heat exchange jacket and vacuum insulation according to claim 1, characterized in that: The bottom of the biogas digester body (1) is welded with a sewage pipe (2) and a support frame (5), and one end of the sewage pipe (2) is threaded with a solenoid valve (3).

4. A continuous fermentation biogas digester with heat exchange jacket and vacuum insulation according to claim 3, characterized in that: The other end of the sewage pipe (2) is equipped with a sewage motor (4), and the drive end of the sewage motor (4) is fixed with a conveying shaft (401) through a coupling. A conveying blade (402) is welded to the outside of the conveying shaft (401).

5. A continuous fermentation biogas digester with heat exchange jacket and vacuum insulation according to claim 1, characterized in that: The front of the heating water tank (6) is threaded with a delivery pipe (10), and one end of the delivery pipe (10) is threaded with a pump (11), which is threaded with a heat exchange pipe (14).

6. A continuous fermentation biogas digester with heat exchange jacket and vacuum insulation according to claim 1, characterized in that: The heating water tank (6) has an inlet pipe (7) and an outlet pipe (8) threadedly connected to one side, and both the inlet pipe (7) and the outlet pipe (8) are cylindrical.

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