Super-efficient biogas generation device pneumatically promoting circulating flow of biogas slurry

Abstract

The invention discloses a super-efficient biogas generation device pneumatically promoting circulating flow of biogas slurry. The super-efficient biogas generation device comprises a feeding pipe, a discharging pipe and a U-shaped fermentation pipeline, the U-shaped fermentation pipeline is horizontally placed, the feeding pipe and the discharging pipe are vertically connected with two end sides of the U-shaped fermentation pipeline, a water pressure space is formed in the upper portion of the U-shaped fermentation pipeline, a feeding pipe drain hole is formed in the joint of the water pressure space and the feeding pipe, a discharging pipe drain hole is formed in the joint of the water pressure space and the discharging pipe, a feeding pipe gas baffle plate is arranged at the joint of the U-shaped fermentation pipeline and the feeding pipe, a discharging pipe gas baffle plate is arranged at the joint of the U-shaped fermentation pipeline and the discharging pipe, a gas collecting pipe is arranged on the U-shaped fermentation pipeline, a one-way valve is arranged at the feeding pipe drain hole and controls the biogas slurry in the water pressure space to unidirectionally flow into the feeding pipe, and the position of the feeding pipe drain hole is lower than that of the discharging pipe drain hole. A U-shaped channel-type fermentation device is used, a fermentation path is long, the biogas slurry sufficiently flows in a system by control of water pressure difference and the one-way valve, bacteria are driven to be uniformly distributed, crusting is effectively prevented, gas generating rate is high, and the super-efficient biogas generation device is suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of biogas, in particular to a biogas fermentation system. Background technique [0002] China's biogas originated in the 1970s and has a development history of nearly 40 years. It has experienced three stages of ups and downs. From 1971 to 1981, it was a stage of rapid development and decline; from 1981 to 1991, it was a stage of adjustment and emphasis on technology; 1991 The period from 2000 to 2000 is the stage of recovery and the benefits are highlighted; the period from 2001 to 2009 is the stage of comprehensive improvement and rapid development; after 2009, it tends to fall back. [0003] Looking back at the ups and downs of biogas development in China, we have fully analyzed the existing problems of biogas (household use) in China: 1. The structure of the biogas fermentation part is unreasonable, and the current promotion is still the pool type fermentation system in the 1980s , It is difficult to fe...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the fermentation route in the biogas fermentation system is short, the biogas slurry self-circulation effect is poor, and the uneven distribution of bacteria in the biogas slurry affects the gas production rate

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