Method of controlling temperature of a fermentation broth in a horizontal fermenter and computer program product

By acquiring data on temperature control modes and fermentation process stages, the start-up and shutdown parameters of the refrigeration equipment are dynamically adjusted, solving the problem of inaccurate temperature control of fermentation liquid in horizontal fermenters. This achieves safe and energy-saving intelligent temperature control, avoids icing or frosting of refrigeration pipes, and improves temperature control accuracy and system reliability.

CN122235388APending Publication Date: 2026-06-19SIEMENS (CHINA) CO LTD
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Patent Information

Application Number
CN202610344400.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-20
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In existing technologies, the fermentation broth in horizontal fermenters is prone to freezing or frosting on the refrigeration pipes before reaching the target temperature, leading to inaccurate temperature control and the risk of shutdown.

Method used

By acquiring data on temperature control modes and fermentation process stages, the set values ​​of the start-up and shutdown frequency, start-up duration, and shutdown duration of the refrigeration equipment are dynamically adjusted to ensure that the refrigeration pipes do not freeze or frost. Combined with a programmable logic controller, closed-loop precise temperature control is achieved.

Benefits of technology

It achieves precise and stable control of fermentation broth temperature, avoids the risk of downtime caused by freezing or frost, ensures the safety and energy efficiency of the fermentation process, and improves the accuracy and reliability of temperature control.

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Abstract

This application relates to a method and computer program product for controlling the temperature of fermentation broth in a horizontal fermenter. The method includes: acquiring data on temperature control modes, wherein the data includes setpoints for a refrigeration device under various temperature control modes, the setpoints including at least one of start / stop frequency, start duration, and stop duration, and values ​​that prevent the refrigeration pipes from freezing or frosting during the cooling of the fermentation broth; acquiring data on fermentation process stages, wherein the data includes cooling rate data and target temperature data for the fermentation broth at each fermentation process stage; adjusting the setpoints based on the cooling rate data; and controlling the operation of the refrigeration device based on the adjusted setpoints and the target temperature data, thereby controlling the temperature of the fermentation broth. Applying the technical solution of this application can effectively and accurately control the temperature of the fermentation broth in a horizontal fermenter while avoiding freezing or frosting of the refrigeration pipes.
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