Advanced control system and control method of boiler device

Abstract

The invention relates to the technical field of control, and discloses an advanced control system and control method of a boiler device. According to the invention, automatic control of a plurality of furnaces, especially two furnaces, can be realized, and the auxiliary furnace can balance the oxygen content of the main regulating furnace by controlling the load of the auxiliary furnace according to the operation condition of the main regulating furnace. In the whole process, the advanced control system predicts the change trend through a model according to data information read from the DCS, and the control target is automatically judged and adjusted. The process is completed by an advanced control system without human intervention of operators, the automatic control rate of the boiler production process is greatly improved, the boiler device production process is in the optimal state of accurate calculation in real time, and automatic and intelligent control over operation of the boiler device is achieved.

Description

technical field [0001] The invention relates to the technical field of control, in particular to an advanced control system and a control method of a boiler plant. Background technique [0002] The circulating fluidized bed coal-fired steam boiler of the chemical production plant realizes the automatic control of the production of the boiler through the DCS control system, and realizes the monitoring of the boiler production process through the detection instruments such as temperature and pressure. The boiler plant has a long production process and is a typical complex industrial process with multiple variables, constraints and strong coupling. Since the control scheme of the DCS control system is usually a conventional PID and cascade, that is, a conventional single-input single-output control scheme, so DCS The control system has been difficult to solve the overall control and optimization of this process. [0003] The boilers of chemical production plants are different ...

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Problems solved by technology

[0007] In order to solve the problems in the background technology, the present invention provides an advanced control system, a control method and a control system for a boiler device. By controlling the intelligent control of the boiler coal supply, the boiler combustion system is adjusted, and the operator does not need to adjust the boiler according to the load fluctuation of the downstream user. Boiler control manually intervenes in boiler load to solve the problem of large fluctuations in process parameters, especially steam pressure and low degree of automatic control of boiler equipment in the existing technology due to frequent changes in user load and coal quality in boiler production equipment

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