Liquid level control system and method of boiler

A control method and liquid level technology, applied in the field of boiler liquid level control equipment, can solve problems such as unstable boiler liquid level control

Active Publication Date: 2017-05-10
CHNA ENERGY INVESTMENT CORP LTD +2
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  • Abstract
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  • Claims
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Problems solved by technology

[0017] The main purpose of the present invention is to provide a boiler liquid level control system and its control method to solve the problem of unstable boiler liquid level control in the prior art

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  • Liquid level control system and method of boiler
  • Liquid level control system and method of boiler
  • Liquid level control system and method of boiler

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Embodiment Construction

[0048] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0049] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0050] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish simila...

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Abstract

The invention provides a liquid level control system and method of a boiler. The method comprises the steps that a real-time signal transmitted by a liquid level transmitter of the boiler is compared with a preset signal, and the operation errors of the boiler are determined; and the operation errors are subjected to repeated analog-digital conversion through a fuzzy controller so that the output quantity can be obtained, and the output quantity is used for controlling the opening degree of an adjusting valve so as to make sure that the liquid level of the boiler is within the preset range. Due to the fact that the real-time signal transmitted and detected by the transmitter is subjected to repeated fuzzy conversion through the fuzzy controller, the operation errors in the boilers can be adjusted in real time, the adaptability of the boiler control system to dynamic environment is improved, and the control effect of the boiler system is improved.

Description

technical field [0001] The invention relates to the technical field of boiler liquid level control equipment, in particular to a boiler liquid level control system and a control method thereof. Background technique [0002] The utilization of sintering waste heat is to use the waste heat of flue gas recovered and collected by the sintering ring cold flue gas boiler to generate electricity. Specifically, it is a new energy-saving technology that combines the waste heat power generation technology to drive the hot steam released by the waste heat boiler to the steam turbine unit to make the steam turbine unit perform work, and finally generate electricity. Compared with the traditional thermal power generation technology, it has unique advantages. Under the premise of not consuming external energy, not emitting polluting gas, polluting dust and other harmful gases, it can make effective use of waste heat energy, which will become the key point of my country's industrial develo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22D5/30F22D5/34F22B1/18
Inventor 郭辉王玲
Owner CHNA ENERGY INVESTMENT CORP LTD
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