Intelligent surge prevention device of superspeed centrifugal fan

An anti-surge device and fan technology, applied in the direction of mechanical equipment, machine/engine, pump control, etc., can solve the problems of equipment damage and low intelligence level, and achieve equipment damage avoidance, complete protection functions, and high intelligence level Effect

Active Publication Date: 2020-04-28
湖南泛航智能装备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

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  • Intelligent surge prevention device of superspeed centrifugal fan
  • Intelligent surge prevention device of superspeed centrifugal fan

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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 intelligent surge prevention device of a superspeed centrifugal fan. The intelligent surge prevention device comprises a fan running state monitoring system, a fan measuring and controlling system, a compound vent valve and a frequency converter. The fan running state monitoring system monitors the air pressure, air volume, bearing vibration, motor current and other parameters, screens the fan running state fed back by the fan measuring and controlling system in real time, and automatically takes surge withdrawal measures. The compound vent valve is a multifunctional vent valve integrating an electric control valve and a mechanical pressure release valve. The frequency converter controls a motor to adjust the running revolutions per minute in real time. By meansof the intelligent surge prevention device, the active surge prevention in the early period of surge of the fan and timely surge withdrawal during surge can be ensured, and the damage of surge to thesuperspeed centrifugal fan is avoided.

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 Applications(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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