Device for heating biogas digester

Abstract

The invention belongs to the technical field of energy-saving and environment-protecting equipment, and in particular relates to a device for heating a biogas digester. The invention aims at providing the biogas digester heating device which is not only capable of continuously supplying gas for a long time but also energy-saving, environment-friendly and economic. The device comprises the biogas digester, a condenser, a generator, a solution heat exchanger and a lithium bromide solution recovery device, wherein the solution heat exchanger is connected to the generator; the generator is connected to the condenser; the condenser is arranged in the biogas digester; the condenser is connected to the lithium bromide solution recovery device; and the lithium bromide solution recovery device is connected to the solution heat exchanger. The biogas digester heating device provided by the invention can take an effective heating effect on the biogas digester in relatively cold regions, so that the problem of insufficient gas supply of the biogas digester in winter is solved; especially, an environment-friendly and economic biogas digester application method is also provided for large farmers; and meanwhile, the device is low in operating cost and good in benefit.

Description

technical field [0001] The invention belongs to the technical field of energy-saving and environment-friendly equipment, and in particular relates to a device for heating a methane pool. Background technique [0002] Lithium bromide absorption system has a wide range of applications, especially in absorption refrigeration and heating industries. It mainly uses the low boiling point and water-soluble properties of lithium bromide for refrigeration or heating. [0003] Currently, the most widely used method of heating biogas digesters in colder regions is to directly add a large amount of hot water to the feed inlet of the biogas digester, so that the biomass in the biogas digester can react quickly in a colder environment and release biogas to solve the colder environment. The problem of insufficient biogas supply. This method is labor-intensive, and the effect is only temporary and cannot produce lasting effects. In colder regions, filling the biogas digester with a large a...

AI Technical Summary

Problems solved by technology

This method is labor-intensive, and the effect is only temporary and cannot produce lasting effects. In colder regions, filling the biogas digester with a large amount of hot water for a long time will not only affect the gas production rate of the biogas, but also when the water is filled When the internal capacity of the biogas digester reaches a certain level, it can no longer be filled into it, which causes the problem of insufficient gas supply in the biogas in a relatively cold environment.

Such practices can waste large amounts of water in water-stressed areas

Previously, there was also a method for heating biogas digesters in a colder environment, such as the patent CN205295345U, which provides a rural household biogas heating system with diaphragm heat transfer. The disadvantage of this system is that it only allows users to In order to heat the biogas digester, it is mentioned that the electric heating water storage tank is used for heating, so the operability in practical application is very small

Because if water or electric heating is used to heat the biogas digester, there is a process according to the method on its patent, and such a heating process is slow and takes a long time

And due to the limitation of the heating time of the reservoir, this device can only be used on smaller biogas digesters, and the application range is narrow

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