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Control method and control system of booster fan and industrial control equipment

A technology of booster fan and control method, which is applied in mechanical equipment, pump control, machine/engine, etc., can solve problems such as affecting normal production and easy failure of booster fan, so as to extend service life, avoid stall, and ensure The effect of normal production

Active Publication Date: 2021-07-20
武汉钢铁有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a control method, control system and industrial control equipment of a booster fan to solve or partially solve the technical problems that the booster fan is prone to failure and affects the production

Method used

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  • Control method and control system of booster fan and industrial control equipment
  • Control method and control system of booster fan and industrial control equipment
  • Control method and control system of booster fan and industrial control equipment

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Embodiment Construction

[0043]The present application will be described in connection with the accompanying drawings, in order to make the present application, in connection with the accompanying drawings. The terms used herein should be understood from the entire specification, unless otherwise specified, the terms used herein should be understood as the meaning used in the art. Thus, unless otherwise defined, all techniques and scientific terms used herein have the same meaning as those of ordinary understanding of those skilled in the art of the present invention. If there is a contradiction, this specification is preferred. The various devices used in the present invention can be prepared by market purchase, unless otherwise stated, can be obtained by market purchase or can be prepared by existing methods.

[0044] By studying the principle of controlling wind pressure of the booster fan and the relationship between the championship failure, it is found that the main reason for the short life of the ...

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Abstract

The invention discloses a control method of a booster fan. The control method comprises the steps that a pressure detection value at a gas collecting pipe and a pressure set value of the booster fan are obtained; a pressure deviation between the pressure detection value and the pressure set value is determined; when the pressure deviation exceeds a pressure fluctuation set range, the air door opening degree of the booster fan is adjusted in a stepped mode according to the air door adjusting amplitude and the air door adjusting pause time till the pressure deviation is within the pressure fluctuation set range; according to the frequency adjustment amplitude and the frequency adjustment pause time, the frequency of the booster fan is adjusted in a stepped mode within the target frequency range till the pressure deviation is within the preset range with a pressure fluctuation center value as the target value; and the target frequency range is the frequency range, except the inherent frequency range, of the booster fan. According to the control scheme, impact loads and alternating loads borne by the booster fan due to resonance, stalling and surge can be avoided, and the service life of the booster fan is remarkably prolonged.

Description

Technical field [0001] The present application relates to the field of sintering technologies, and in particular, to a control method, control system, and industrial control equipment for supercharged fan. Background technique [0002] The supercharged fan is a mechanical energy that relies on input mechanical energy, improving gas, and is widely used in metallurgical, chemical, building materials, mining, electricity, port, food and other industries. In the sintering process of the metallurgical industry, the supercharged fan is a key device for the re-desulfurizing denitration of the re-desulfurization denitration. The control principle of the boost fan is to perform a "fixed pressure" regulation operation in the pressure. The current common regulation is the amount of variable in frequency regulation (or frequency adjustment), and the pressure value of the gas pipe is adjusted. The pressure detection value of the trachea is relatively stable as the regulatory target. If the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00F04D27/02
CPCF04D27/00F04D27/003F04D27/001F04D27/02
Inventor 段斌修庾江徽王俊怡艾春洪周吉华陈显望
Owner 武汉钢铁有限公司
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