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A measuring device for blade frequency interference force of air-cooled island fan

A technology of measuring devices and fan blades, which is applied to components of pumping devices for elastic fluids, mechanical equipment, machines/engines, etc., to achieve the effect of reducing errors, reducing deviations, and reducing vibration problems

Active Publication Date: 2019-08-09
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of measuring the magnitude of the force on the fan bridge due to the blade frequency interference caused by the rotation of the fan, and to provide an accurate and powerful data support for the vibration reduction research of the fan bridge

Method used

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  • A measuring device for blade frequency interference force of air-cooled island fan
  • A measuring device for blade frequency interference force of air-cooled island fan
  • A measuring device for blade frequency interference force of air-cooled island fan

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Embodiment Construction

[0017] The technical solutions in the examples of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the examples of the present invention.

[0018] refer to figure 1 , The present invention provides a measuring device for the blade frequency disturbance force of an air-cooled island fan, the measuring device includes a wind measuring baffle 1 , a connecting rod 2 , a force sensor 3 and a strong magnetic base 4 . The wind measuring baffle 1 is made of a rectangular hard plastic plate and a boss. The boss is provided with a threaded hole for connecting the sensor. In order to strengthen the connection between the boss and the hard plastic plate, the boss and the hard plastic plate Ribs are added to the four corners of the car. The advantage of using a rigid plastic plate is that the wind measurement baffle 1 is light in weight, which reduces the influence of inertial force on wind measurement.

[0019] The win...

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Abstract

The invention provides an air cooling island fan blade frequency disturbing force measuring device including a wind-force-measuring baffle, a connecting rod, a force sensor and a powerful magnet base.The connecting rod after threading with a steel pole is connected with the wind-force-measuring baffle through a threaded hole in a fit mode. All steel pole structures are connected to form the connecting rod to play supporting and connecting roles, and are conveniently installed with the force sensor. The powerful magnet base is composed of a cylindrical magnet with powerful magnetic force and abolt perpendicular to the cylindrical surface; a structure formed by an assembly of the force sensor and the wind-force-measuring baffle through the powerful magnet base is vertically fastened to thebottom end of a crane span structure; and the measuring device can be effectively fastened at the bottom end of the crane span structure through the powerful magnet base to solve the fastening problem of the measuring device and accordingly to solve the problem that a level of the disturbing force of the blade frequency produced by rotating of a fan working on the crane span structure can be measured, and the air cooling island fan blade frequency disturbing force measuring device provides a strong data support to further accurately analysis and solve the vibration problem for the crane spanstructure.

Description

technical field [0001] The invention relates to a large-scale air-cooled island fan bridge blade frequency interference force measuring device, which belongs to the field of structural design, and specifically relates to providing powerful data support for the vibration reduction research of the fan bridge by measuring the force of the blade frequency on the fan bridge structure. Background technique [0002] In recent years, due to factors such as the lack of water resources in the northern region, air cooling technology has developed rapidly. The air-cooling technology mainly uses fan forced convection to cool the exhaust steam in the tube bundle. This technology is less dependent on water resources. It has the advantages of water saving, energy saving, environmental protection, less equipment, simple system, and good antifreeze performance. The air-cooling island of the direct air-cooling power station is generally composed of dozens or even hundreds of fan units, each fa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00F04D29/00F04D29/66
CPCF04D27/001F04D29/002F04D29/668
Inventor 郭铁能白春生王一杰曹进选
Owner BEIJING UNIV OF TECH
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