System used for producing biogas from renewable energy by multi-energy coupling

Abstract

The invention discloses a system used for producing biogas from renewable energy by multi-energy coupling. The system comprises a solar energy heat power generation system, a biomass raw material pre-treatment system, a biogas fermentation system, a waste-heat utilization system and a fuel auto-control injection system; a heat exchanger (3) of the solar energy heat power generation system is connected to a compressor (1) and a gas turbine (2) respectively; a mixer (12) of the biomass raw material pre-treatment system is connected to an electric generator (7); exhaust generated in the waste-heat utilization system is exhausted via a solar energy collector (4), the gas turbine (2), the heat exchanger (3) and a silencer (6); a fire barrier (16) of the fuel auto-control injection system is connected to a combustion chamber (5); and a temperature indicator is connected to a pipeline arranged between the solar energy collector (4) and the combustion chamber (5).

Description

technical field [0001] The invention relates to a comprehensive utilization system of biomass energy and solar energy. Background technique [0002] The depletion of fossil energy and the deteriorating environment have become long-term and major bottlenecks restricting the development of the global economy and society, and will affect the living conditions of human beings in the future. In order to solve this problem, on the one hand, we must vigorously carry out energy conservation and scientific energy use, and on the other hand, we must accelerate the development and utilization of renewable energy. As a clean and efficient new renewable energy, biogas has attracted more and more attention from all over the world. However, biogas fermentation is limited by temperature conditions, and when the temperature of the biogas digester is lower than 10°C, almost no gas is produced. In cold winter areas in northern my country, biogas digesters are used for half a year and idle f...

AI Technical Summary

Problems solved by technology

However, biogas fermentation is limited by temperature conditions. When the temperature of the biogas digester is lower than 10°C, almost no gas will be produced.

In cold winter areas in northern my country, biogas digesters are used for half a year and idle for half a year, and the biogas digesters spend the winter on an empty stomach, causing a large number of biogas digesters to freeze, crack, and be scrapped, resulting in huge economic losses.

Images