Solar auxiliary heating methane production device

Abstract

The invention discloses a solar auxiliary heating methane production device. The device comprises a biomass methane fermentation system, wherein the biomass methane fermentation system comprises an anaerobic reaction box and a gas storage tank which is arranged on the upper part of the anaerobic reaction box and provided with a gas outlet; the bottom of the gas storage tank is provided with a vent hole communicated with the anaerobic reaction box; the anaerobic reaction box is provided with a feeding hole, a discharging hole, a feeding hole valve and a discharging hole valve; a feeding pump is arranged between the feeding hole valve and the anaerobic reaction box; the biomass methane fermentation system is connected with an auxiliary heating system which comprises a heat exchanger and a heat collector; the heat exchanger is arranged at the bottom of the anaerobic reaction box; the middle part of the inner side of the anaerobic reaction box is provided with at least one baffle plate and at least one heat exchanger; and the heat exchanger divides the anaerobic reaction box into a plurality of compartments. Feed liquor is circuitously baffled up and down through a plurality of heat exchangers and baffle plates, so that the motion process of the feed liquor in the anaerobic reaction box is prolonged, phenomena of a short circuit, a dead angle, incrustation and the like are avoided, the retention time of sludge is ensured, and fermentation efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of biomass biogas fermentation, in particular to a solar-assisted heating type biogas production device. Background technique [0002] At present, the development of the global economy and society is mostly driven by energy. The more the economy develops, the more energy will be consumed, especially the increase in the consumption of fossil fuels. On the other hand, the massive use of fossil energy has caused increasingly serious environmental problems. Therefore, human beings are facing enormous dual pressures on energy and the environment. [0003] If there is no new energy to replace the dominant position of fossil conventional energy in the energy structure, serious and catastrophic energy and environmental crises will inevitably occur in the 21st century. Therefore, renewable energy is one of the preferred alternative energy sources. Since biomass energy is an important part of renewable energy and i...

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Problems solved by technology

[0002] At present, the development of the global economy and society is mostly driven by energy. The more the economy develops, the more energy will be consumed, especially the increase in the consumption of fossil fuels. increasingly depleted; on the other hand, the massive use of fossil energy has caused increasingly serious environmental problems

However, the traditional anaerobic baffled reactor has no heat preservation measures, so that the equipment cannot meet the requirements of biogas production in winter, and can only achieve medium-temperature fermentation even in summer; The closed circulation flow in the reactor and the return pipe can cause problems such as sludge loss and low gas production efficiency, which limits the further application and development of biomass biogas fermentation

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