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CN-224212662-U - Modular heating device and fermenter

CN224212662UCN 224212662 UCN224212662 UCN 224212662UCN-224212662-U

Abstract

The utility model belongs to the technical field of biological fermentation, and particularly relates to a modularized heating device which comprises a hot water tank, a plurality of connecting pipes, a plurality of heating modules and a plurality of heating modules, wherein two ends of each connecting pipe are respectively communicated with the hot water tank through pipelines, a first control valve and a first electromagnetic valve are arranged on the pipelines, the first control valve is positioned at one end close to the connecting pipe, the heat collecting mechanisms are arranged in a one-to-one correspondence with the connecting pipes, each heat collecting mechanism is communicated with the connecting pipe, the circulating pump is communicated with the pipelines so that water circularly flows between the hot water tank and the heat collecting devices, the heating modules are arranged in a plurality, each heating module is arranged at intervals along the axial direction of the fermentation tank, each heating module comprises a plurality of heating bodies distributed along the circumferential direction of the fermentation tank, and the heating bodies made of heat conducting materials are sequentially communicated. Therefore, the problems of low fermentation efficiency, high energy consumption and high waste gas yield of fermentation equipment in the prior art are solved.

Inventors

  • MIAO XIAO
  • ZHOU JUN
  • XI YONGLAN
  • XUE BAOCHENG

Assignees

  • 徐州市环能生态技术有限公司

Dates

Publication Date
20260508
Application Date
20250421

Claims (10)

  1. 1. A modular heating apparatus for a fermenter, comprising: A hot water tank for storing liquid; The two ends of each connecting pipe are respectively communicated with the hot water tank through pipelines, a first control valve and a first electromagnetic valve are arranged on the pipelines, and the first control valve is positioned close to one end of the connecting pipe; A plurality of heat collecting mechanisms, which are arranged in a one-to-one correspondence with the connecting pipes, wherein each heat collecting mechanism is communicated with the connecting pipe and used for heating the introduced liquid; The circulating pump is communicated with the pipeline so that water circularly flows between the hot water tank and the heat collecting device, the plurality of heating modules are arranged, each heating module is arranged at intervals along the axial direction of the fermentation tank, each heating module comprises a plurality of heating bodies distributed along the circumferential direction of the fermentation tank, the heating bodies made of heat conducting materials are sequentially communicated, the heating modules are not arranged in the top area of the fermentation tank, and the hot water tank, the header pipe, the pipeline, the heat collecting mechanism and the flow channels of the heating modules are formed into a circulating waterway together.
  2. 2. The modular heating apparatus according to claim 1, wherein the heating body is embedded in both the inner wall and the outer wall of the fermenter, wherein the circumference of the inner wall of the fermenter is F1, the communication length F2, f2= (0.25-0.5) F1 of the heating body in the circumferential direction of the inner wall of the fermenter, the circumference of the outer wall of the fermenter is F3, and the communication length F4, f4= (0.8-0.9) F3 of the heating body in the circumferential direction of the outer wall of the fermenter.
  3. 3. The modular heating apparatus of claim 2, further comprising a thermal insulation module removably wrapped around the periphery of the fermenter.
  4. 4. A modular heating apparatus as claimed in claim 3, wherein the thermal insulation module is connected to the fermenter by means of a clamping table or screws, and wherein the thermal insulation module is provided as a polyurethane layer.
  5. 5. The modular heating apparatus of claim 1, wherein the fermenter is provided with a limit groove, and the heating body is embedded in the limit groove.
  6. 6. The modular heating apparatus of claim 5, wherein a sealant layer is disposed in the heating body and the limiting groove.
  7. 7. The modular heating apparatus of claim 1, wherein the fermenter has a feed inlet and a discharge outlet, and wherein the density of the heating body in each heating module is progressively less along the direction of the feed inlet toward the discharge outlet.
  8. 8. The modular heating apparatus of claim 1, wherein each heating module is provided with a length L1 along an axial direction of the fermenter, and a tank length of the fermenter is L2, l2= (0.5-0.8) L1.
  9. 9. The modular heating apparatus of any one of claims 1-8, further comprising a temperature detection mechanism and a pressure detection mechanism communicatively connected to the controller, wherein the temperature detection mechanism is configured to detect current water temperature information in the heating body, the pressure detection mechanism is configured to detect current water pressure information of the circulation waterway, and the controller is further communicatively connected to the first solenoid valve and the circulation pump to correspondingly control the first solenoid valve and the circulation pump to perform corresponding actions according to the current water temperature information and the current water pressure information.
  10. 10. A fermenter comprising a modular heating device according to one of claims 1 to 9.

Description

Modular heating device and fermenter Technical Field The utility model belongs to the technical field of biological fermentation, and particularly relates to a modularized heating device and a fermentation tank. Background Because the organic waste has large difference in components (such as kitchen waste and agricultural waste), the organic waste may contain refractory substances such as high lignin and cellulose, and the microbial decomposition speed is slow. Imbalance in carbon to nitrogen ratio (C/N), such as too high or too low, can affect microbial activity and reduce gas production efficiency. Anaerobic fermentation is divided into medium temperature (30-45 ℃) and high temperature (50-60 ℃), and if the temperature fluctuates or does not reach the standard, the microbial metabolism efficiency can be obviously reduced. Volatile Fatty Acid (VFA) accumulation during fermentation may lead to a pH drop, inhibiting methanogen activity. In addition, insufficient mechanical stirring can lead to layering or crusting of materials, low mass transfer efficiency, and excessive stirring can destroy microbial communities. Anaerobic fermentation relies on the synergistic effect of hydrolytic bacteria, acidogenic bacteria and methanogenic bacteria, and if the activity of a colony of a certain link is insufficient (such as sulfide inhibits methanogenic bacteria), the overall efficiency is reduced. The Hydraulic Retention Time (HRT) or the Solids Retention Time (SRT) is too short and the organics are discharged without sufficient degradation. Energy consumption is continuously consumed for maintaining constant temperature (especially high-temperature fermentation), and if the heat preservation performance of the reactor is poor or the efficiency of a heat recovery system is low, the energy consumption is obviously increased. The pretreatment steps of crushing, sorting or desalting add additional energy, especially for complex waste (e.g. mixed waste). When the anaerobic environment is destroyed, the facultative bacteria will undergo aerobic metabolism, producing CO 2 instead of methane, resulting in an increase in exhaust gas. Overactivity of acid forming bacteria can lead to accumulation of VFA and CO 2, whereas methanogens fail to convert in time. Decomposition of sulfur-containing organics (e.g., proteins) produces H 2 S, while CO 2 is a natural byproduct of anaerobic fermentation, and the exhaust treatment pressure increases if desulfurization is inadequate. The poor sealing of the reactor or the pipeline can cause the escape of methane (CH 4), so that the energy recovery rate is reduced, and the emission of greenhouse gases is increased. Aiming at the problems of low fermentation efficiency, high energy consumption and high waste gas yield of fermentation equipment in the prior art, a more reasonable technical scheme is needed to be provided so as to optimize and improve the whole anaerobic fermentation system, thereby solving the current technical problem. Disclosure of utility model The utility model aims to provide a modularized heating device and a fermentation tank, which are used for solving the problems of low fermentation efficiency, high energy consumption and high waste gas yield of fermentation equipment in the prior art. In order to achieve the above object, the present utility model provides a modular heating apparatus for a fermenter, comprising: A hot water tank for storing liquid; The two ends of each connecting pipe are respectively communicated with the hot water tank through pipelines, a first control valve and a first electromagnetic valve are arranged on the pipelines, and the first control valve is positioned close to one end of the connecting pipe; A plurality of heat collecting mechanisms, which are arranged in a one-to-one correspondence with the connecting pipes, wherein each heat collecting mechanism is communicated with the connecting pipe and used for heating the introduced liquid; a circulating pump connected to the pipeline for circulating water between the hot water tank and the heat collecting device, and The fermentation tank comprises a plurality of heating modules, wherein the plurality of heating modules are arranged at intervals along the axial direction of the fermentation tank, each heating module comprises a plurality of heating bodies which are arranged along the circumferential direction of the fermentation tank and are made of heat conducting materials, the heating bodies are sequentially communicated, the heating modules are not arranged in the top area of the fermentation tank, and a circulating waterway is formed by the hot water tank, the header pipe, the pipeline, the heat collecting mechanism and the flow channels of the heating modules. Optionally, the heating body is embedded in the inner wall and the outer wall of the fermentation tank, wherein the circumference of the inner wall of the fermentation tank is F1, the communication length F2, F2= (0.25-0.5) F1 of th