Insulation structure of fermentation tank for warm room biogas preparation

Abstract

The invention provides an insulation structure of a fermentation tank for warm room biogas preparation. The insulation structure comprises a warm room, a fermentation tank and an HDPE film wherein thewarm room is used for coating the fermentation tank; the fermentation tank comprises a tank wall and a tank bottom, and the cross section formed by the tank wall and the tank bottom has a trapezoidalstructure; the HDPE film is arranged on the tank wall, the tank bottom and the upper opening of the fermentation tank to form a closed structure; the tank wall comprises a first insulation layer, a concrete layer, a second insulation layer and a first cushion layer which are sequentially arranged from inside to outside; and the tank bottom comprises a third insulation layer, a concrete layer, a fourth insulation layer, a waterproof layer and a second cushion layer which are sequentially arranged from inside to outside. The insulation structure is applicable to insulation of various biogas digesters, and can be used for effectively ensuring that the inside of a biogas digester is still in a constant-temperature state in winter or cold weather to achieve an effect of heating and insulatingin winters, so that the yield of biogas can be guaranteed, and daily living needs of people can be met.

Description

technical field [0001] The invention relates to the technical field of biogas production equipment, in particular to a thermal insulation structure of a biogas production fermentation tank in a greenhouse. Background technique [0002] With the development of my country's economy and the progress of society, biogas is more and more used in daily life and industrial production. Comprehensive utilization of biogas digesters can not only save energy, improve and protect the environment, but also save chemical fertilizers and pesticides, improve crop yield and quality, and promote and drive the development of animal husbandry and many other benefits. [0003] At present, the traditional biogas insulation device cannot meet the insulation requirements in winter, resulting in very low gas production or even no gas production under cold winter conditions, which greatly affects the development of biogas in northern regions. Contents of the invention [0004] The object of the pre...

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Problems solved by technology

[0004] The object of the present invention is to aim at the defects and deficiencies of the prior art, and provide a warm room biogas production fermentation tank heat preservation structure, which can solve the problem that the current traditional biogas heat preservation device cannot meet the heat preservation requirements in winter, resulting in The gas production is very low or even unable to produce gas, which greatly affects the development of biogas in the northern region.

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