Performance monitoring method and system for power plant draught fan

A technology for power plant fans and monitoring systems, applied in pump control, mechanical equipment, machines/engines, etc., can solve problems such as lack of universality, and achieve the effect of easy adjustment, optimization and high efficiency

Active Publication Date: 2016-07-06
HUANENG POWER INT INC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method requires modification of existing equipment and is not universal

Method used

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  • Performance monitoring method and system for power plant draught fan
  • Performance monitoring method and system for power plant draught fan
  • Performance monitoring method and system for power plant draught fan

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

[0032] One aspect of the present invention provides a performance monitoring system for wind turbines in power plants, including modules such as a data acquisition module, an efficiency calculation and storage module, a data mining module, and an efficiency optimization module, such as figure 1 shown.

[0033] Among them, the data acquisition module is used to collect fan flow, pressure rise, i...

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Abstract

The invention discloses a performance monitoring method and system for a power plant draught fan. The method includes the steps that working condition data are collected for the power plant draught fan; then the real-time efficiency eta of the draught fan is obtained according to the working condition data, and the maximum value of the real-time efficiency corresponding to different values of flow is obtained to serve as the optimal efficiency corresponding to the flow; and finally, the real-time efficiency is compared with the optimal efficiency corresponding to the current flow, and when the optimal efficiency is larger than the real-time efficiency, the optimal working condition data are sent to the outside. The invention further discloses a performance monitoring system using the method. By means of the performance monitoring method and system for the power plant draught fan, the operation efficiency of the power plant draught fan can be calculated in real time, the operation efficiency is optimized by adjusting working conditions, and the operation efficiency is improved under the condition that hardware facilities of the draught fan are not changed.

Description

technical field [0001] The invention belongs to the field of power plant fan energy saving, and more specifically relates to a performance monitoring method and system of a power plant fan. Background technique [0002] Fans are important auxiliary machines in thermal power plants, and their operating power consumption accounts for about 30% of the power consumption of power plants. When the fan leaves the factory, the manufacturer also provides a set of performance design curves to the user. The performance design curve represents the design performance of the fan, which is closely related to the fan's impeller airfoil, casing shape, guide vane type, and drive type. And the optimal working condition and optimal efficiency of the fan under different flow rates are given. However, due to changes in the load of the power plant unit and the change in the type of coal used, the operating conditions of the fan are constantly changing, and the actual operating efficiency of the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00
CPCF04D27/00
Inventor 李卫东夏季刘家钰孙伟鹏冯庭有彭鹏姚友工陈刚
Owner HUANENG POWER INT INC
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