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Process and apparatus for controlling temp. of edible mushroom liquid fermentation

A liquid fermentation and control method technology, applied in specific-purpose bioreactors/fermenters, biochemical cleaning devices, biochemical equipment and methods, etc., can solve the problems of poor temperature control quality, low degree of automation, and large investment. , to achieve the effect of improving yield and quality

Inactive Publication Date: 2005-03-23
HEBEI AGRICULTURAL UNIV.
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Problems solved by technology

[0002] The temperature in the fermentation tank is a very important control parameter in the liquid fermentation production of edible fungus strains. The traditional control method mainly uses Type II regulating instrument to control the fermentation temperature in the liquid fermentation tank. As far as the system is concerned, there are many shortcomings such as poor temperature control quality, low degree of automation, unguaranteed reliability, and large investment.
In recent years, although some companies have developed some computer control systems (mainly using PID control technology), the actual effect is not ideal

Method used

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  • Process and apparatus for controlling temp. of edible mushroom liquid fermentation
  • Process and apparatus for controlling temp. of edible mushroom liquid fermentation
  • Process and apparatus for controlling temp. of edible mushroom liquid fermentation

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Embodiment Construction

[0019] Application examples of liquid fermentation of Flammulina velutipes strains

[0020] figure 1 , figure 2 The working process and apparatus of the present invention are shown.

[0021] The liquid fermentation temperature control system is mainly composed of a liquid fermentation tank 1, a temperature sensor 2, a computer 3, a data acquisition board 4, a control relay 5, a water pump 6, and a regulating valve 7. Its working process is: the temperature in the liquid fermentation tank 1 is collected by the temperature sensor 2 and converted into an electrical signal, and the detection signal is transmitted to the computer 3 through the data acquisition board 4 with A / D conversion function. Instrument software. Instead of the traditional combination instrument, it dynamically displays the changes of the detection parameters on the screen, and records and stores the data in forms such as tables. On the other hand, the computer processes the collected information and compa...

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Abstract

The invention is a method for controlling the temperature in the edible mushroom liquid-fermenting process, providing a method that can accurately control the temperature in liquid-fermentation cylinder and its realizing device, and its technical solution: It adopts a method of combining computer technique, virtual instrument technique and test technique together, detects the temperature parameter in the liquid-fermenting process of edible mushroom, uses forecasting error and rate of change of forecasting error as the input quantities of a fuzzy controller, selects a control algorithm combining forecasting control with fuzzy control to keep the liquid-fermenting temperature in a proper range, thus providing a good fermenting environment for hypha growth. Its device is composed of liquid fermentation cylinder, temperature sensor, computer, data collecting board, control relay, water pump and regulating valve.

Description

technical field [0001] The invention relates to a temperature control method and device in the liquid fermentation process of edible fungi, belonging to the technical field of automatic control. Background technique [0002] The temperature in the fermentation tank is a very important control parameter in the liquid fermentation production of edible fungus strains. The traditional control method mainly uses Type II regulating instrument to control the fermentation temperature in the liquid fermentation tank. As far as the system is concerned, there are many shortcomings such as poor temperature control quality, low degree of automation, unguaranteed reliability, and large investment. In recent years, although some companies have developed some computer control systems (mainly using PID control technology), the actual effect is not ideal. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method capable of accurat...

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Application Information

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IPC IPC(8): C12M1/36
Inventor 钱东平张瑞青霍晓静刘亚琼陈文杰
Owner HEBEI AGRICULTURAL UNIV.
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