Blending control method for temperature of reactive kettle

Abstract

The invention relates to a blending control method for temperature of a reactive kettle. The prior method is poor in control effect and not suitable for the requirements on energy saving and emission reduction and environment protection. The method provided by the invention comprises the following steps of: firstly, designing a proportional plus integral plus derivative controller for a reactive kettle temperature process through a typical responsive cure method, then, building a process model necessary for a non-minimized model prediction function controller based on the real-time process data of the reactive kettle temperature, further designing a non-minimized model prediction function proportional plus integral plus derivative controller, and obtaining the present control parameter value according to a target function. The control method provided by the invention can effectively reduce the error between a reactive kettle temperature technological parameter and a practical reactivekettle temperature technological parameter, so as to further make up for the defects of a conventional controller and synchronously ensure that a control device is operated in an optimal state, so that the reactive kettle temperature technological parameter in the production process can be strictly controlled.

Description

technical field [0001] The invention belongs to the technical field of automation, and relates to a hybrid control method of non-minimization model prediction function (NMSSPFC) and proportional integral differential (PID) of reactor temperature. Background technique [0002] Reactor is the core equipment in the production of chemical industry, pharmacy, fermentation, etc. Its stable operation is directly related to the quality index and benefit of production. Among them, the temperature of reactor is one of the important control parameters. The quality of its control effect is closely related to product quality and Yield has a direct and important relationship. In the whole equipment, the temperature control of the reactor is relatively strict and complicated, and it is usually difficult to achieve effective control with ordinary conventional control. In the reaction kettle, heating water is passed through the jacket in the kettle to increase the temperature of the kettle,...

AI Technical Summary

Problems solved by technology

These unfavorable factors lead to low precision of traditional control methods, which further lead to instability of subsequent production control parameters, low product qualification rate, and low efficiency of reactors

At present, the temperature control of reactors in the actual industry basically adopts traditional or simple control methods, and the control parameters depend on the experience of technicians, which increases the production cost and the control effect is not ideal

my country's reactor temperature control and optimization technology is relatively backward, with high energy consumption, poor control performance, and low degree of automation. It is difficult to meet the needs of energy saving, emission reduction and indirect environmental protection. One of the direct influencing factors is the reactor. Problems with the control scheme of the temperature system

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