Biogas pool for improving gas yield through complementation of solar photo-thermal electric generation and photovoltaic electric generation

Abstract

The invention relates to a biogas pool for improving the gas yield through complementation of solar photo-thermal electric generation and photovoltaic electric generation and belongs to the technical field of new energy source application. Sunlight irradiates a parabolic mirror for reflecting and gathering heat energy, liquid water in a heat exchange device is heated for generating water vapor to drive a turbonator to generate current, the current is input to a junction station through conducting wires, sunlight irradiates a solar cell to generate current, and the current is input to a controller through conducting wires, the current output from the controller is input into the junction station through conducting wires, photo-thermal current and photovoltaic current are converged in the junction station and are then input into a current divider through conducting wires, the current in the flow divider is divided into two parts, one part of current is input into a temperature raising device arranged in the biogas tool through conducting wires, the electric energy in the temperature raising device is converted into thermal energy, and the thermal energy is used for raising the temperature of fermented biogas liquid; and the other part of current is input into an electric motor through conducing wires, the electric energy in the electric motor is converted into mechanical energy, the mechanical energy is used for driving a stirrer connected with the electric motor to rotate, and the fermented biogas liquid is uniformly stirred.

Description

technical field [0001] The invention relates to a biogas digester in which solar thermal power generation and photovoltaic power generation complement each other to improve gas production rate, and belongs to the technical field of new energy applications. Background technique [0002] The scale of promoting biogas digesters in China is the largest in the world. The country plans to develop 26 million biogas digesters by 2010. These biogas digesters are mainly distributed in the south of the Yangtze River. Since the fermentation of the biogas slurry inside the biogas digesters requires a suitable fermentation temperature, more biogas can be produced. Under the medium temperature condition of about 35°C, biogas fermentation can produce the best economic benefits. The temperature environment outside the digester has a considerable influence on the fermentation process in the digestate inside the digester. In the vast northern region of China, the vast central and western reg...

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Problems solved by technology

[0004] On October 7, 2011, the market price of eggs produced in China increased by 15.7% compared with October 7, 2010. In October, the price of an egg in Guizhou Province reached RMB 0.85. The economic benefits of scattered chickens for farmers are low.

[0005] At present, because many biogas digesters lack effective heating, heat preservation, and temperature-regulating supporting facilities, not only many biogas digesters in the northern region do not produce biogas for half a year due to low temperature, but even many biogas digesters in the southern region The gas production rate is not high enough

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