Solar temperature-increasing device for biogas digester

Abstract

The invention provides a solar temperature-increasing device for a biogas digester. The solar temperature-increasing device for the biogas digester comprises a radiating coil pipe arranged at the bottom of the biogas digester, a solar collector for converting solar energy into heat energy and communicated with the radiating coil pipe and a gas stirring device arranged inside the biogas digester and used for stirring biogas raw materials inside the biogas digester, wherein one end of the radiating coil pipe is connected with the water inlet of the solar collector through a return pipe, and the other end of the radiating coil pipe is connected with the water outlet of the solar collector through an upflow pipe; the gas stirring device comprises an air pump arranged on the outer side of the biogas digester, at least one gas suction pipe arranged inside the biogas digester and communicated with a gas storage chamber at the upper part of the biogas digester, and gas nozzles arranged at the bottom of the biogas digester and communicated with the gas suction pipe. The solar temperature-increasing device for the biogas digester provided by the invention solves the problem of little or no gas production in the winter, and better ferments the biogas raw materials to improve the operation quality of the biogas digester.

Description

technical field [0001] The invention belongs to the technical field of biogas pits, and more specifically relates to a solar heating device for biogas pits. Background technique [0002] With the development of the economy, the excessive use of conventional energy coal and oil has caused air pollution to become more and more serious, seriously affecting people's life and health. People actively seek the development and utilization of clean energy. Biogas is a kind of clean energy. In addition to providing clean fuel in the process of biogas production, it can also solve the environmental pollution caused by the excrement produced by animal husbandry and turn waste into treasure. In reality, because the generation of biogas is greatly affected by temperature, the gas production of biogas digesters will drop sharply with the temperature drop when the weather is cold, especially in winter, which cannot provide stable energy for users. Contents of the invention [0003] The ...

AI Technical Summary

Problems solved by technology

In reality, because the generation of biogas is greatly affected by temperature, when the weather is cold, especially in winter, the gas production of biogas digesters will drop sharply as the temperature drops, which cannot provide users with stable energy

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