Biogas liquid heating device of biogas fermentation pool

Abstract

The invention provides a biogas liquid heating device of a biogas fermentation pool, and belongs to the technical field of biogas fermentation, aiming at solving the problem that biogas liquid in a biogas-generating pit is difficult to heat. The biogas liquid heating device of the biogas fermentation pool comprises second solar heat collection pipes which are obliquely arranged; the bottom ends of the second solar heat collection pipes are connected with a horizontal pipe I; inner cavities of the heat collection pipes are communicated with an inner cavity of the horizontal pipe I; opening ends of the heat collection pipes are connected with a bent pipe; the other end of the bent pipe stretches into a pool cover of the biogas fermentation pool and is communicated with an inner cavity of a pool body; the bent pipe is internally provided with a solenoid valve I; the middle of the horizontal pipe I is connected with a liquid transporting pipe through a pipe connector; the other end of the liquid transporting pipe stretches into the bottom of the pool body of the biogas fermentation pool and is communicated with the inner cavity of the pool body; the liquid transporting pipe is internally provided with a solenoid valve II; the top ends of the second solar heat collection pipes are connected with a horizontal pipe II; the inner cavities of the second solar heat collection pipes are communicated with an inner cavity of the horizontal pipe II; the opening ends of the second solar heat collection pipes are connected with a liquid pumping device through a connecting pipe. The biogas liquid heating device of the biogas fermentation pool has the advantages of energy saving, good heating effect on the biogas fermentation pool and the like.

Description

technical field [0001] The invention belongs to the technical field of biogas fermentation, and relates to a biogas fermentation tank, in particular to a biogas slurry heating device for a biogas fermentation tank. Background technique [0002] The metabolic activities of biogas fermentation microorganisms are closely related to temperature. Within a certain range, the higher the temperature, the more vigorous the metabolism of biogas microorganisms, and the more biogas production. In winter or in some cold regions, the temperature in the biogas fermentation tank is low, and the activity of fermentation microorganisms is not high, which affects the fermentation of biogas. [0003] After searching, the Chinese patent (application number: 200610069837.7) discloses a sun-drying solar biogas fermentation tank. The upper end of the fermentation tank is covered with a light-transmitting dome, and sunlight is irradiated into the fermentation tank through the dome for heating. Chin...

AI Technical Summary

Problems solved by technology

Using the above technical means to heat the biogas slurry in the biogas digester has the disadvantage of slow heating speed

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