Energy-saving biogas fermentation tank heating constant-temperature equipment and using method thereof

Abstract

The invention relates to an energy-saving biogas fermentation tank heating thermostat and a using method thereof. The energy-saving biogas fermentation tank heating thermostat comprises a fermentation tank (5), a solar heat collector (8), a ground source heat pump (14), a heat preservation water tank (16) and a control module. A working medium outlet of the heat preservation water tank (16) is communicated with a working medium inlet of the capillary network heat exchanger (7); a working medium outlet of the capillary network heat exchanger (7) is communicated with a working medium inlet of the heat preservation water tank (16); a working medium outlet of the ground source heat pump (14) is communicated with a working medium inlet of the heat preservation water tank (16); a working medium outlet of the heat preservation water tank (16) is communicated with a working medium inlet of the ground source heat pump (14) through a ground source heat pump inlet numerical control valve (10); and a working medium outlet of the solar heat collector (8) is communicated with a working medium inlet of the heat preservation water tank (16) through a solar heat collector numerical control valve (9). The invention has the advantages of low energy consumption, low cost, high heat transfer efficiency, and uniform and stable temperature adjustment of each part in the tank.

Description

technical field [0001] The invention belongs to the technical field of centralized gas supply engineering for large and medium-sized biogas projects, and in particular relates to an energy-saving biogas fermenter temperature increasing and constant temperature device with system integrated capillary network heat exchanger, solar energy and soil source heat pump technology and its use method. Background technique [0002] my country produces a huge amount of agricultural and forestry waste such as livestock and poultry manure, crops and wetland plant stalks every year, and the current utilization rate of resources is not high. Livestock and poultry wastes that have not been treated or discharged up to standards have become the main pollution source of eutrophication in lakes and reservoirs in some areas, and the low utilization rate of agricultural and forestry wastes has also put enormous pressure on environmental protection departments to ban straw burning and protect the at...

AI Technical Summary

Problems solved by technology

The winter temperature in northern my country is low, especially the lowest temperature in the northeast region reaches -30°C. In order to ensure the normal operation of the biogas project in winter, it is particularly important to increase the temperature and constant temperature of the biogas fermentation tank, and the high energy consumption caused by the temperature increase and constant temperature will directly increase the production and operation of the biogas project. The cost affects the efficient and stable operation of the biogas project

[0005] The solar heating system collects and transmits heat energy through the solar collector system, and the heated hot water conducts heat transfer with the material liquid. This method is energy-saving and environmentally friendly, and the operation is simple, but there are problems such as being easily affected by the weather and low energy flow density.

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