Methane production device without energy consumption suitable for cold region in winter

Abstract

The invention relates to a methane production device without energy consumption suitable for a cold region in winter and belongs to the field of environmental protection and renewable energy sources. A reactor is designed into a vacuum sandwich structure and can reduce heat loss; a heat storage water tank is arranged on the lower part of the reactor and has an effective energy storage function; asolar heat collecting pipe is arranged at the bottom of the reactor, heat is directly transferred without adopting pump circulation, and energy-saving and warming effect is good; an emergence electric heater is arranged in the water tank and can compensate warming in cloudy day; a single blade is spirally propelled into a stirrer, the driving is convenient and labor-saving and the stirring effectis good; and a turning hopper is driven by a steel rope to feed, so that the feeding is convenient. The whole set of device has a good effect of warming and keeping warm, has convenience in operation, consumes no additional energy source, is high in methane yield, and can ensure the normal use in the cold region in winter.

Description

technical field [0001] The invention belongs to the fields of environmental protection and renewable energy, and in particular relates to an anaerobic reactor with a new structure and its auxiliary facilities. Background technique [0002] Biogas is produced through the fermentation of organic matter (livestock and poultry manure, straw, organic waste, etc.). As a new type of renewable energy, it has been applied in the vast rural areas of our country. It has begun to take shape in many areas and has achieved remarkable results. It not only replaces and saves a lot of traditional energy, but also makes a lot of feces and garbage better transformed and utilized, and purifies the environment. However, at present, the reactors commonly used for household biogas are not perfect in structure and function, and the technical methods are backward. As a result, the household biogas reactors built in my country generally have problems such as low gas production rate, large heating ene...

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Problems solved by technology

However, at present, the reactors commonly used for household biogas are not perfect in structure and function, and the technical methods are backward. As a result, the household biogas reactors built in my country generally have problems such as low gas production rate, large heating energy consumption and poor effect.

The main reason for the low gas production rate is that the fermentation temperature is low due to the incomplete heat preservation measures and there is no stirring device inside the reactor. Generally, the reactor is built underground and covered with firewood outside, and some are built in the livestock and poultry house. The body is hardly insulated separately, and the reactor is affected by the external temperature. When the temperature is low in winter, the gas production drops sharply. Especially in the cold northern regions, the normal operation is basically impossible for nearly four months in winter. At the same time, the reactor Because there is no stirring device, the efficiency of fermentation is greatly reduced; the energy consumption of heating is large and the effect is not good. The main performance is that heating generally requires external energy consumption. Even if solar technology is used, the position of the heat collecting device is higher than that of the reactor. The generated heat energy needs to be transferred into the reactor through pump circulation, which requires the consumption of external energy, and the temperature increase effect is not good

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