Boiler optimized combustion control method

A control method and optimized combustion technology, applied in the direction of electric controllers, controllers with specific characteristics, sustainable manufacturing/processing, etc., can solve problems such as energy waste, harmful gas exceeding the standard, and environmental pollution, so as to save energy and reduce Effect of exhaust gas emission and workload reduction

Pending Publication Date: 2020-03-17
ZHEJIANG HENGYANG THERMAL POWER CO LTD
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Problems solved by technology

[0002] Combustion control of traditional circulating fluidized bed boilers is mainly manual. Manual control is difficult to achieve the best combustion efficiency. Coupled with the physical condition of people, the staff cannot operate the boiler to achieve the best combustion efficiency all the time, resulting in energy consumption. The waste of sulfur dioxide, nitrogen oxides and other harmful gases emitted exceeds the standard, causing pollution to the environment

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Embodiment Construction

[0047] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments. Obviously, the described embodiments are only a part of the application Examples, not all examples. Based on the given embodiments, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present application.

[0048] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, It is not intended to indicate or imply that the device or element referred to must...

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Abstract

The invention discloses a boiler optimized combustion control method. The system according to the method comprises a boiler drum water level control loop, and control of the boiler drum water level control loop comprises the following steps: S1, deviation values of the boiler drum water level, the feed water flow and the main steam flow are collected respectively; S2, the control regulating variables of a main water supply regulating valve and an auxiliary water supply regulating valve of the boiler are calculated: the control regulating variables of the main water supply regulating valve andthe auxiliary water supply regulating valve are calculated according to the following calculation formula, wherein WQ is a regulator output signal; Ws is a deviation signal of the regulator; Kp is a proportionality coefficient; Ti is integral time; and Td is the differential time. All control loops of the boiler are put into automatic optimized operation by eliminating personal errors and hardwareerrors and depending on optimized software, and the system can guarantee safe operation and production of enterprises and save energy and thus considerable economic benefits are brought to the enterprises.

Description

technical field [0001] The invention belongs to the technical field of boiler control, and in particular relates to a boiler optimal combustion control method. Background technique [0002] Combustion control of traditional circulating fluidized bed boilers is mainly manual. Manual control is difficult to achieve the best combustion efficiency. Coupled with the physical condition of people, the staff cannot operate the boiler to achieve the best combustion efficiency all the time, resulting in energy consumption. The waste of waste, the emission of harmful gases such as sulfur dioxide and nitrogen oxides exceed the standard, causing pollution to the environment. Contents of the invention [0003] The purpose of the present invention is to provide a boiler optimal combustion control method, which aims to solve the problems existing in the background technology. [0004] For solving the problems of the technologies described above, the purpose of the present invention is ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B11/42
CPCG05B11/42Y02P80/10
Inventor 金王涛李匡彝屠国华顾建平周杰
Owner ZHEJIANG HENGYANG THERMAL POWER CO LTD
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