Negative pressure protective fermentation tank

Abstract

The invention discloses a negative pressure protective fermentation tank, and relates to the technical field of biological fermentation equipment. Under normal use, gas pressure in the tank can be conveniently adjusted by a pressure regulating valve. When the gas pressure in the tank is negative due to a failure or other unexpected circumstances of the fermentation tank, a pressure transmitter detects the change of the gas pressure in the tank and converts the pressure into an electric signal to drive an alarm device to work, so that a worker can know more timely that the fermentation tank hasthe failure. At the same time, a control device automatically opens an exhaust valve, and the opening degree is 100%. Through the exhaust valve, the outside air is sucked into the tank, thus effectively preventing the damage of the fermentation tank due to the negative pressure. At the same time, when the outside air enters the tank, the outside air is purified by a gas filter, so that the outside air which enters the tank body is sterile air, the possibility of bacterial contamination is effectively reduced, and the loss is minimized.

Description

technical field [0001] The invention relates to the technical field of biological fermentation equipment, in particular to a negative pressure protection fermenter. Background technique [0002] Fermentation tank refers to a device used in industry for microbial fermentation. Its main body is generally a main cylinder made of stainless steel plate, with a volume ranging from 1 cubic meter to hundreds of cubic meters. In the design and processing, attention should be paid to the tight and reasonable structure. Can withstand steam sterilization, have certain operating flexibility, minimize internal accessories (avoid dead ends), strong material and energy transfer performance, and can be adjusted to facilitate cleaning and reduce pollution, suitable for the production of various products and reduce energy consume. [0003] The sterilization of the fermenter is a process step that requires attention. It directly determines the quality of subsequent fermentation products, and...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that after the fermentation and sterilization is completed, the pressure will drop due to the temperature drop. At this time, if the operator does not pay attention to filling in sterile air or air compression or air compressor failure, the equipment will be damaged.

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