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An intelligent anti-breathing device for ultra-high-speed centrifugal fans

A technology of ultra-high-speed centrifugal and anti-surge devices, which is applied in the direction of mechanical equipment, machines/engines, non-variable pumps, etc., can solve problems such as equipment damage and low intelligence level, and achieve high reliability, complete protection functions, The effect of high level of intelligence

Active Publication Date: 2022-03-29
湖南泛航智能装备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is a semi-active anti-asthma measure, with a certain level of automation, but the level of intelligence is not high, and the action time of the electric control valve depends on the time of real-time data collection, processing and system feedback, and too long anti-asthma response Time is fatal for ultra-high-speed centrifugal fans, which will cause direct damage to the equipment

Method used

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  • An intelligent anti-breathing device for ultra-high-speed centrifugal fans
  • An intelligent anti-breathing device for ultra-high-speed centrifugal fans

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0030] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention relates to an active intelligent anti-surge device for an ultra-high-speed centrifugal fan, which includes a fan operating state monitoring system, a fan measurement and control system, a composite vent valve and a frequency converter, and a fan operating state monitoring system to monitor wind pressure, air volume, and bearing vibration. , motor current and other parameters, and the fan operating status fed back by the fan monitoring system is screened in real time. If there is a sign of surge, anti-surge measures will be taken automatically. Functional vent valve, the frequency converter controls the motor in real time to adjust the running speed. This device can ensure active prevention in the early stage of fan surge, and timely retreat when surge occurs, so as to avoid damage to the ultra-high-speed centrifugal fan caused by surge.

Description

technical field [0001] The invention relates to the field of intelligent detection devices, and more specifically relates to an intelligent anti-breathing device for an ultra-high-speed centrifugal fan. Background technique [0002] Fan surge refers to the pulsation phenomenon of pressure and flow generated when the fan works in an unstable region. When the fan surges, the flow and pressure of the fan change periodically and repeatedly, and sometimes the change is large, with zero or even negative values. The positive and negative fluctuations of the fan flow and pressure will cause the airflow to collide violently, causing the fan itself to vibrate violently, and the noise of the fan will increase at the same time. For large-capacity, high-pressure fans, if surge occurs, it may cause equipment and bearing damage, cause accidents, and directly affect the safe operation of the boiler. [0003] The following methods are usually used to prevent fan surge: 1) keep the fan work...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/02
CPCF04D27/0261
Inventor 张勇聂湘华莫天洋张正华李毅
Owner 湖南泛航智能装备有限公司
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