Temperature control method and device

A temperature control method and technology of temperature deviation, which are applied in the direction of using electric mode for temperature control, auxiliary controller with auxiliary heating device, etc. Fast, improve the effect of precise control

Active Publication Date: 2020-06-02
ZHEJIANG SUPCON TECH
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  • Claims
  • Application Information

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Problems solved by technology

However, during the heat preservation period, the temperature in the reaction vessel tends to fluctuate greatly, irregularly and without a tendency to converge, thus failing to meet the precise temperature control requirements required by the process

Method used

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  • Temperature control method and device
  • Temperature control method and device
  • Temperature control method and device

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Embodiment Construction

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0058] Such as figure 1 As shown, it is a schematic diagram of a temperature control method provided in the embodiment of the present application, including the following steps:

[0059] S101: Obtain the first valve opening degree, the second valve opening degree and the third valve opening degree.

[0060] Wherein, the first valve opening degree is obtained based on the temperature deviation corresponding to the current moment, and the temperature deviation is a deviation value be...

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Abstract

The invention discloses a temperature control method and device. The method comprises the steps: acquiring the opening degree of a first valve, the opening degree of a second valve and the opening degree of a third valve; according to the first valve opening degree, the second valve opening degree and the third valve opening degree, controlling the valve opening degree of a temperature control medium, and enabling the temperature in the reaction container to be consistent with the preset temperature. Therefore, in the process of controlling the opening degree of the valve, the method not onlyconsiders the deviation value between the temperature corresponding to the current moment in the reaction container and the preset temperature, but also considers the temperature deviation accumulatedvalue and the temperature change rate at the current moment. The accumulated value of temperature deviation is considered in the process of controlling the opening degree of the valve; in addition, due to the fact that the temperature change rate is considered in the process of controlling the opening degree of the valve, the problem that the fluctuation change frequency of the temperature in thereaction container is too high can be avoided, and the accurate control over the temperature in the reaction container is remarkably improved.

Description

technical field [0001] The present application relates to the technical field of industrial control, in particular to a temperature control method and device. Background technique [0002] In the process of industrial production, it is necessary to perform physical or chemical reactions on industrial materials to obtain the materials required for production. At present, the industrial field realizes the heating, evaporation, cooling, and low-speed reaction processing required by the material process through the design and parameter configuration of the structure of the reaction vessel (such as a reactor). A good reaction treatment process requires precise control of the temperature in the reaction vessel according to the process requirements. [0003] In the prior art, a proportional integral differential (PID) control method is used to control the temperature in the reaction vessel, and according to the deviation value between the temperature in the reaction vessel and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/32
CPCG05D23/32
Inventor 王荣楠吴松郭江
Owner ZHEJIANG SUPCON TECH
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