Ultra-efficient biogas generation device that promotes the circulation of biogas slurry by air pressure

Abstract

The invention discloses an ultra-high-efficiency biogas generating device that air pressure promotes biogas slurry circulation, which includes a feed pipe, a discharge pipe, and a U-shaped fermentation pipe. The U-shaped fermentation pipe is placed horizontally, and the feed pipe and the discharge pipe are connected vertically. At both ends of the U-shaped fermentation pipeline, a water pressure room is placed on the upper part of the U-shaped fermentation pipeline. The connection between the water pressure room and the feed pipe is the drain hole of the feed pipe, and the connection between the water pressure room and the discharge pipe is the discharge hole of the discharge pipe. A feed pipe air baffle is set at the connection position between the U-shaped fermentation pipeline and the feed pipe, and a discharge pipe air baffle is set at the connection position between the U-shaped fermentation pipeline and the discharge pipe; the U-shaped fermentation pipeline is provided with a gas collecting pipe. The drain hole of the feed pipe is provided with a one-way valve to control the one-way flow of the biogas slurry in the water pressure chamber into the feed pipe. The fermentation route is long, using the control of water pressure difference and one-way valve to realize the full flow of biogas slurry in the system, and to drive the uniform distribution of bacteria, effectively prevent crusting, high gas production rate, 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...

AI Technical Summary

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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