Biogas fermenting pit having insulating structure

Abstract

The invention relates to a biogas fermenting pit having an insulating structure. The biogas fermenting pit comprises a fermenting pit body, a fermenting pit bottom, anchoring trenches, an HDPE membrane, a biogas slurry pipeline, a biogas residue pipeline, a biogas pipeline and a feeding pipeline, wherein an opening is formed in the upper end of the fermenting pit body; the fermenting pit bottom isarranged at the lower end of the fermenting pit body; a structure of which the cross section is a trapezoid is formed by the fermenting pit body and the fermenting pit bottom; the anchoring trenchesare formed in four sides of the upper end of the fermenting pit body; the HDPE membrane covers the opening in the upper end of the fermenting pit body, the fermenting pit body and the inner wall of the fermenting pit bottom through the anchoring trenches to form a sealing structure; the biogas slurry pipeline is arranged on one side of the fermenting pit body; a plurality of pipelines are arrangedon four sides of the fermenting pit body; a first insulating layer, a concrete layer, a second insulating layer and a first under layer are sequentially arranged on the fermenting pit body from inside to outside; and a third insulating layer, a concrete layer, a fourth insulating layer, a waterproof layer and a second under layer are sequentially arranged at the fermenting pit bottom from insideto outside. Through the adoption of the methane fermenting pit having the insulating structure disclosed by the invention, the situation that when the weather is cold, the inner part of a methane-generating pit can still be under a constant temperature state is guaranteed, so that the yield of methane and daily life requirements of people are guaranteed.

Description

technical field [0001] The invention relates to the technical field of biogas production equipment, in particular to a biogas fermentation tank with a thermal insulation structure. 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 present invention is to aim ...

AI Technical Summary

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 biogas fermentation tank with thermal insulation structure, which can solve the problem that the current traditional biogas thermal insulation device cannot meet the thermal insulation requirements in winter, resulting in the gas production under cold winter conditions. It is very low or even unable to produce gas, which greatly affects the development of biogas in the northern region.

Images