Method and device for intensively stabilizing biogas yield by utilizing air energy heat pump

Abstract

The invention provides a method for intensively stabilizing biogas yield by utilizing an air energy heat pump, and the method comprises the following steps of: generating hot water by virtue of the air energy heat pump, and transporting circulating water into a heat exchanger with a mechanical descaling device in a biogas digester, so that the temperature of biogas slurry in the biogas digester can be stabilized within the temperature range which is most suitable for anaerobic digestion, and the biogas yield can be intensively stabilized; and the mechanical descaling device consists of a plurality of descaling ring components capable of moving along with the surface of a heat exchanger pipe and a power transferring mechanism driving the descaling ring components to move. After the method and the device are used, the temperature of the biogas slurry in the biogas digester can not be changed along with the external environment and can be kept within a proper temperature range, the stable production, high production, low energy consumption and low discharge of the biogas can be realized, the heat medium water can be recycled, the scaling problem of a heat pipe can be solved, the method is energy-saving, environmentally-friendly, and convenient to adjust and control, the heating efficiency is improved, and the service life of a system is prolonged.

Description

technical field [0001] The invention relates to a method and a device for enhancing and stabilizing biogas output by using an air energy heat pump. Background technique [0002] Energy is a strategic resource for the economic development of countries all over the world. Relevant data predict that the remaining recoverable reserves of global oil plus the growth potential of reserves are 229.7 billion tons, which can be used for 39 years, plus 357.4 billion tons of undiscovered resources, which can be used for 53 years; the remaining recoverable reserves of global natural gas plus reserves increase The potential is 222.5 billion tons, which can be used for 47 years, and the amount of undiscovered resources is 3,369.6 billion tons, which can be used for 63 years. The current energy situation in China is equally grim: lack of resources, structural imbalance, sharp increase in demand, large gap, low energy efficiency and difficulty in reducing emissions have become bottlenecks r...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method and device that can solve the problem of unstable gas production due to changes in the external environment temperature and realize efficient and continuous production by using an air energy heat pump to strengthen and stabilize biogas production

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