Solar-assisted biogas fermentation device and method

Abstract

The invention discloses a solar-assisted biomass fermentation device and a solar-assisted biomass fermentation method. The solar-assisted biomass fermentation device comprises elements such as a temperature sensor, a water inlet pipe, a thermal collector circulating pump, a hot water storage tank, an electric heating ring, a switch, an evacuated tube solar thermal collector, an angle demodulator, a solar storage battery and the like, wherein the hot water storage tank is connected with the evacuated tube solar thermal collector; the electric heating ring is arranged inside the hot water storage tank and is connected with the solar storage battery through a first conducting wire and the switch; the evacuated tube solar thermal collector produces the energy and transmits the energy to the solar storage battery through a battery connection board; the angle demodulator is positioned at the lower end of the battery connection board; the thermal collector circulating pump is arranged on the water inlet pipe; one end of the water inlet pipe is connected with the hot water storage tank and the other end of the water inlet pipe is connected with a water outlet pipe through a spiral radiating pipe; and the thermal collector circulating pump is connected with the temperature sensor through a second conducting wire. By the device and the method, the fermentation of biogas in highland areas where the solar radiation is strong and the temperature difference between day and night is high can be realized, and the yield of the biogas is improved.

Description

technical field [0001] The invention relates to the technical field of biomass energy, in particular to a solar-assisted biogas fermentation device and method. Background technique [0002] Biogas is a renewable biomass energy source with a wide range of sources. It has the characteristics of no pollution, simple production technology, and low cost. It has a good prospect for promotion and application in rural areas of our country. In recent years, rural areas have vigorously developed and built biogas fermentation tanks, and biogas has become one of the leading new energy sources used in rural areas in the future. The Qinghai-Tibet Plateau area is rich in solar energy resources, but the temperature is relatively low. The temperature of an ordinary brick-and-tiled biogas digester can drop to several degrees below zero, resulting in a lower temperature in the pond than the optimum fermentation temperature, or the freezing of the fermented product, which seriously affects the ...

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Problems solved by technology

The Qinghai-Tibet Plateau region is rich in solar energy resources, but the temperature is relatively low. The temperature of an ordinary brick-and-tiled biogas digester can be reduced to several degrees below zero, resulting in a lower temperature in the pond than the optimum fermentation temperature, or the freezing of the fermented product, which seriously affects the biogas production. , reducing the utilization efficiency of the biogas digester

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