Dry type anaerobic fermentation tank temperature adjusting device

Abstract

The utility model provides a dry type anaerobic fermentation tank temperature adjusting device which comprises a hot water boiler, the hot water boiler is connected with a fermentation tank through a first pipeline, a second pipeline is further connected between the fermentation tank and the hot water boiler, the second pipeline is a backflow pipeline, the first pipeline is connected with a suction pump, and the second pipeline is connected with a second pipeline. An integrated heating pipe is arranged at the position, close to the middle, of the upper portion of the first pipeline. Compared with the prior art, the utility model has the following beneficial effects: the initial heating temperature of the electric heating wire is 53 DEG C, water passing through the electric heating wire area can be heated, if the detection temperature of the subsequent temperature sensor II does not reach the standard, the electric heating wire can be controlled to continuously heat until the temperature required by the fermentation tank is reached, and the water is discharged into the fermentation tank; and then a pipeline II is matched to carry out backflow, so that a proper temperature is provided to ferment anaerobic microorganisms.

Description

Technical Field

[0001] This utility model is a temperature control device for a dry anaerobic fermenter, belonging to the field of organic fermentation technology. Background Technology

[0002] Organic solid waste, including agricultural waste, kitchen waste, and municipal sludge, can be anaerobically fermented to produce biogas and organic fertilizer. The organic solid waste resource utilization industry can solve environmental pollution problems and produce biogas, thus possessing energy characteristics. Therefore, this industry has experienced rapid development in recent years and is one of the key industries supported by the state. Traditional organic solid waste fermentation technology mainly uses wet fermentation processes; however, years of development have shown that wet fermentation processes produce large amounts of unmanageable biogas slurry, causing secondary pollution, and the yield of organic fertilizer is low, resulting in poor economic viability and hindering its effective promotion.

[0003] However, current theoretical research on high-solids-content materials is still incomplete both domestically and internationally. There is a lack of solutions for conveying and mixing high-viscosity materials, and dry fermenters rely on imports, resulting in high equipment costs. Against this backdrop, research on dry anaerobic fermenters has become one of the breakthroughs in domestic dry fermentation technology. Fermenters provide anaerobic microorganisms with an oxygen-deficient, constant, and suitable temperature environment to ensure efficient fermentation of materials and the production of combustible gases such as methane, thereby realizing the resource utilization of organic waste. Suitable temperature is crucial for anaerobic microorganisms; excessively high or low temperatures will affect gas production efficiency. Therefore, controlling the temperature of the dry anaerobic fermenter is essential to achieve optimal fermentation efficiency. This application proposes a temperature regulation device for a dry anaerobic fermenter. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a temperature regulation device for a dry anaerobic fermenter.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A temperature control device for a dry anaerobic fermenter includes a hot water boiler connected to the fermenter via a first pipe. A second pipe, which is a reflux pipe, connects the fermenter and the hot water boiler. A suction pump is connected to the first pipe. An integrated heating tube is positioned near the center of the first pipe. The heating tube includes an outer insulating tube containing multiple differentiation tubes. Heating wires are wound around the outer surface of each differentiation tube. Temperature sensor one and temperature sensor two are respectively installed on the first pipe, each equipped with a temperature probe located inside the first pipe.

[0007] Furthermore, temperature sensor one and temperature sensor two are connected to a controller, the heating wire is connected to a thermostat, and the thermostat is connected to the controller.

[0008] Furthermore, both ends of the differentiation pipe are fixedly embedded with sealing plugs, which are fixed to the two inner opening ends of the outer heat insulation pipe.

[0009] Furthermore, the pipeline has an integrally formed cooling pipe, inside which is a circulation pipe. Both ends of the circulation pipe extend out of the cooling pipe and are connected to the water tank.

[0010] Furthermore, a water pump is fixedly installed at the top of the water tank, and the water pump is equipped with a suction pipe and a water outlet pipe, with the suction pipe extending into the water tank.

[0011] Furthermore, the other end of the water outlet pipe is connected to a chiller, and the output end of the chiller is connected to one end of the circulation pipe in conjunction with the water supply pipe.

[0012] Furthermore, valves are installed on both pipe one and pipe two near the hot water boiler and the fermentation tank, and a filter box is also connected to pipe one.

[0013] Furthermore, a double-layered filter plate is installed inside the filter box, and a filter screen is provided on the inner side of each filter plate. A mounting plate is fixed to the top of the double-layered filter plate, and the mounting plate is fixed to the top of the filter box with screws.

[0014] The beneficial effects of this utility model are:

[0015] The required temperature inside the fermenter should be controlled between 53°C and 57°C, and should not be too high or too low. The outlet temperature of the hot water boiler should be between 60°C and 65°C. The hot water supply temperature of the hot water boiler should be maintained between 60°C and 65°C and transported in conjunction with pipe one to transfer as much heat as possible to the fermenter. The boiler water at 60°C-65°C is transported through pipe one. Some consumption will occur during the transportation process. Therefore, temperature sensor one and temperature sensor two are used to detect the temperature at different locations in the pipeline. Temperature sensor two is designed to be located close to the fermenter.

[0016] The initial heating temperature of the heating wire itself is 53°C. Water passing through the heating wire area can be heated. The temperature is then detected by temperature sensor two. If the detected temperature is not up to standard, the heating wire can be controlled to continue heating until the required temperature in the fermentation tank is reached. The water is then discharged into the fermentation tank to control the fermentation temperature. In conjunction with pipe two for reflux, a suitable temperature is provided for the anaerobic microorganisms to ferment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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.

[0018] Figure 1 This is a front view of a temperature control device for a dry anaerobic fermenter according to the present invention.

[0019] Figure 2 This is a schematic diagram of the outer shell insulation pipe of a temperature regulating device for a dry anaerobic fermenter according to this utility model.

[0020] Figure 3 This is a schematic diagram of the differentiation pipeline of a temperature control device for a dry anaerobic fermenter according to this utility model;

[0021] Figure 4 This is a schematic diagram of the filter plate of a temperature regulating device for a dry anaerobic fermenter according to this utility model.

[0022] In the diagram: 1. Hot water boiler; 2. Pipe 1; 3. Fermentation tank; 4. Pipe 2; 5. Suction pump; 6. Heating tube; 7. Outer shell insulation tube; 8. Differentiation tube; 9. Heating wire; 10. Temperature sensor 1; 11. Temperature sensor 2; 12. Controller; 13. Thermostat; 14. Cooling tube; 15. Circulation tube; 16. Water tank; 17. Water pump; 18. Suction tube; 19. Water outlet tube; 20. Refrigerator; 21. Water supply pipe; 22. Valve; 23. Filter box; 24. Filter plate; 25. Mounting plate; 26. Sealing and blocking plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3This utility model provides a technical solution: a temperature regulation device for a dry anaerobic fermenter, including a hot water boiler 1, which is connected to a fermenter 3 via a pipe 2. A second pipe 4 is also connected between the fermenter 3 and the hot water boiler 1. The second pipe 4 is a reflux pipe. A suction pump 5 is connected to the first pipe 2. An integrated heating pipe 6 is arranged at the middle position of the first pipe 2. The heating pipe 6 includes an outer heat-insulating pipe 7. Multiple differentiation pipes 8 are arranged inside the outer heat-insulating pipe 7. Heating wires 9 are wound around the outer surface of the differentiation pipes 8. Temperature sensors 10 and 21 are respectively arranged on the first pipe 2. Temperature sensors 10 and 21 are equipped with temperature probes located inside the first pipe 2.

[0025] See Figure 1-3 The temperature sensor 10 and the temperature sensor 11 are connected to the controller 12. The heating wire 9 is connected to the thermostat 13, and the thermostat 13 is connected to the controller 12. The controller 12 receives the detected temperature and, in conjunction with the thermostat 13, heats the heating wire to achieve the purpose of temperature control.

[0026] See Figure 1-3 Both ends of the differentiation pipe 8 are fixedly fitted with sealing and blocking plates 26, which are fixed to the two inner opening ends of the outer heat insulation pipe 7. The pipe 2 has an integrally formed cooling pipe 14, and a circulation pipe 15 is provided inside the cooling pipe 14. Both ends of the circulation pipe 15 extend out of the cooling pipe 14 and are connected to the water tank 16. A water pump 17 is fixedly installed at the top of the water tank 16. The water pump 17 is provided with a suction pipe 18 and a water outlet pipe 19. The suction pipe 18 extends into the water tank 16, and the other end of the water outlet pipe 19 is connected to a cooler 20. The output end of the cooler 20 is connected to one end of the circulation pipe 15 through a water supply pipe 21. The pipes 2 and 4 are close to the hot water boiler 1 and the fermentation unit. Valves 22 are installed at the location of tank 3. A filter box 23 is also connected to the pipeline 2. Temperature sensor 10 detects the temperature of the transported water. If the transported temperature is higher than the required temperature in the fermentation tank, cooling is required to prevent high temperature from entering the fermentation tank. Water pump 17 can be turned on to draw water from the water tank 16 and enter the cooling pipe 14 with the water outlet pipe 19 and the cooler 20 to cool the water transported inside. The cooler 20 circulates and cools the water. In order to ensure that the boiler hot water is cooled too much, the initial heating temperature of the heating wire 9 is 53°C. The heating wire 9 works continuously to reheat the cooled water. In addition, the temperature sensor 11 detects the temperature and controls the heating wire 9 to continue to heat up or cool down according to the detection situation until water of the appropriate temperature enters the fermentation tank.

[0027] See Figure 1 and Figure 4 The filter box 23 is equipped with a double-layer filter plate 24. The filter plate 24 is provided with a filter screen on its inner side. The top of the double-layer filter plate 24 is fixed with a mounting plate 25. The mounting plate 25 is fixed to the top of the filter box 23 with screws. The filter screen inside the double-layer filter plate 24 filters the water to ensure that the water inside the equipment is relatively clean and to control the temperature of the equipment.

[0028] In practical operation, the required temperature inside the fermenter should be controlled between 53°C and 57°C, neither too high nor too low. The outlet temperature of the hot water boiler should be between 60°C and 65°C. The hot water supply temperature should be maintained between 60°C and 65°C, and transported through pipe 2 to transfer as much heat as possible to the fermenter. Maintaining the boiler water at 60°C-65°C through pipe 2 results in some heat loss during transport; therefore, temperature sensors 10 and 11 are used to detect the temperature at different points along the pipeline. Temperature sensor 11 is designed to be located close to... The initial heating temperature of the heating wire 9 in fermenter 3 is 53°C. Water passing through the area of ​​the heating wire 9 can be heated. The temperature is then detected by temperature sensor 11. If the detected temperature is not up to standard, the heating wire 9 can be controlled to continue heating until the required temperature in the fermenter is reached, and then discharged into the fermenter to control the fermentation temperature. In conjunction with pipe 4, reflux is carried out to provide a suitable temperature for the fermentation of anaerobic microorganisms. The purpose of the differentiation pipe 8 is to divert the water flow to ensure better heating effect of the water for differentiation. A pump can also be designed on pipe 2 to improve the reflux effect.

[0029] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dry anaerobic fermentation tank temperature regulating device, characterized by: The utility model provides a kind of water heating system, including hot water boiler (1), the hot water boiler (1) is connected fermentation tank (3) by pipeline one (2), pipeline two (4) is further connected between the fermentation tank (3) and the hot water boiler (1), the pipeline two (4) is reflux pipeline, suction pump (5) is connected on the pipeline one (2), integrated heating pipe (6) is arranged in the position of the middle of the pipeline one (2), the heating pipe (6) includes shell heat preservation pipe (7), a plurality of differentiation pipelines (8) are arranged in the shell heat preservation pipe (7), electric heating wire (9) is wound on the outer surface of the differentiation pipeline (8), temperature sensor one (10) and temperature sensor two (11) are respectively arranged on the pipeline one (2), temperature sensor one (10) and temperature sensor two (11) are equipped with temperature probe, and located inside the pipeline one (2).

2. The temperature regulating device for dry anaerobic fermentation tank according to claim 1, characterized in that: Temperature sensor one (10) and temperature sensor two (11) are connected with controller (12), and the electric heating wire (9) is connected with temperature controller (13), and the temperature controller (13) is connected with the controller (12).

3. A temperature regulating device for a dry anaerobic fermentation tank as claimed in claim 2, characterized in that: The both ends of the differentiation pipeline (8) are fixedly embedded with sealing stop plate (26), and the sealing stop plate (26) is fixed in the two inner opening ends of the shell heat preservation pipe (7).

4. A temperature regulating device for a dry anaerobic fermentation tank as claimed in claim 3, characterized in that: The pipeline one (2) has integrated cooling pipe (14), the cooling pipe (14) is provided with circulating pipe (15), and the both ends of the circulating pipe (15) are connected with water tank (16).

5. A temperature regulating device for a dry anaerobic fermentation tank as claimed in claim 4, wherein: The water pump (17) is fixed on the outer top end of the water tank (16), and the water pump (17) is provided with suction pipe (18) and water outlet pipe (19), and the suction pipe (18) extends into the water tank (16).

6. A dry anaerobic fermentation tank temperature regulating device according to claim 5, wherein: The other end of the water outlet pipe (19) is connected with refrigerator (20), and the output end of the refrigerator (20) is connected with one end of the circulating pipe (15) through water delivery pipe (21).

7. A dry anaerobic fermentation tank temperature regulating device according to claim 6, characterised in that: Valves (22) are arranged on the pipeline one (2) and the pipeline two (4) near the hot water boiler (1) and the fermentation tank (3), and the pipeline one (2) is further connected with filter box (23).

8. A dry anaerobic fermentation tank temperature regulating device according to claim 7, characterised in that: The filter box (23) is provided with double-layer filter plate (24), the filter plate (24) is provided with filter screen, and the double-layer filter plate (24) is fixed with mounting plate (25) on the top end, and the mounting plate (25) is fixed on the outer top end of the filter box (23) through screws.

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