A VEM culture machine for agricultural microbial propagation and a jet flow oxygen supply fermentation method thereof

By using a liquid circulation loop and jet oxygen supply method, the same path regulation of the oxygen supply gas and the fermentation broth circulation is achieved, which solves the problem that it is difficult to link dissolved oxygen regulation and circulation status in existing equipment, and improves the stability and field applicability of the expansion process.

CN122405409APending Publication Date: 2026-07-17

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Filing Date
2026-04-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing agricultural microbial propagation equipment, the oxygen supply equipment and the mixing equipment are set up separately, which makes it difficult to link dissolved oxygen regulation with the circulation status inside the tank, affecting the stability of the propagation process and its adaptability to the field.

Method used

A liquid circulation loop is used to drive the jet aspiration, forming a gas-liquid mixture that enters the vertical guide. An adjustable flow circulation pump and control components enable the same liquid circulation path for oxygen supply, fermentation broth circulation, and dissolved oxygen regulation, eliminating the need for a rotating stirring shaft and dynamic sealing structure.

Benefits of technology

It improves the stability of dissolved oxygen distribution and liquid mixing during the propagation of agricultural microorganisms, reduces equipment maintenance requirements, and is suitable for field deployment in field bases and small and medium-sized sites.

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Abstract

本发明属于农业微生物发酵设备技术领域,且公开了一种用于农业微生物扩培的VEM培菌机及其射流供氧发酵方法,该培菌机包括罐体、竖向导流件、液体循环回路、气液射流供氧组件、供氧气体通路、发酵参数检测单元和控制组件。竖向导流件在罐体内形成上升导流通道和下降回流通道,流量可调循环泵从培养腔下部抽取发酵液并送入气液射流供氧组件,使供氧气体与发酵液形成气液混合流后进入上升导流通道下部;溶解氧检测件采集溶解氧参数,控制组件根据溶解氧参数调节流量可调循环泵的泵送流量,使发酵液流量、供氧气体进入量和气液混合流量随泵送流量变化;本发明能够使农业微生物扩培过程中的供氧、循环混合和溶解氧调节沿同一液体循环路径进行。
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