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Ultrasonic fan flange bolt axial force monitoring system

A flange bolt, monitoring system technology, applied in force/torque/work measuring instruments, measuring devices, measuring torque/torsional force during tightening, etc. Problems such as inconvenient use of couplant

Active Publication Date: 2021-05-28
北京能高普康测控技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This system is mainly used to solve the inability of the general monitoring system to monitor the axial force of the bolt in real time, the inability to install the ultrasonic probe conveniently, the inconvenience of using the liquid coupling agent between the ultrasonic probe and the bolt contact surface, the design of transmitting and receiving and filtering circuits, and the transmission and processing of multi-channel signals. , computer processing software systems and other issues

Method used

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  • Ultrasonic fan flange bolt axial force monitoring system
  • Ultrasonic fan flange bolt axial force monitoring system
  • Ultrasonic fan flange bolt axial force monitoring system

Examples

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Embodiment Construction

[0041] The present invention provides a convenient installation ultrasonic fan flange bolt axial force monitoring system based on the principle of acoustic elasticity. The structural principle and working principle of the present invention will be further described below in conjunction with the accompanying drawings.

[0042] Such as figure 1 As shown, the system mainly includes an ultrasonic probe group, an ultrasonic probe connection line, a system control box, and a computer information processing software system.

[0043] Such as figure 2 The ultrasonic probe 6 shown is fixed on the flange bolt of the fan, and the probe 6 is connected to the probe line interface 12 of the system control box 1 through the probe line 2. The system control box 1 is equipped with an ultrasonic pulse transmitting, receiving and filtering circuit, and the pulse transmitting circuit can be Transmitting pulses to the ultrasonic probe, the receiving circuit can receive ultrasonic reflected echoes...

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Abstract

The invention belongs to the technical field of wind turbine generator safety monitoring, and relates to an ultrasonic fan flange bolt axial force monitoring system convenient to install. The system mainly comprises a probe group, a system control case and a computer information processing software system. Ultrasonic probes used by the system are fastened on a probe connecting piece in a bolt fastening mode, and the probe connecting piece is fastened on a fan flange bolt through a nut; the system control case comprises a multi-channel ultrasonic transmitting circuit, a multi-channel ultrasonic receiving and amplifying filter circuit, a signal transmission circuit, a network cable interface, a power source interface and the like. The computer information processing software system in the system comprises a switch control module of each channel acquisition module, a receiving and display module, an axial force calculation module, a flange surface monitoring bolt distribution module, an alarm module and the like. The monitoring system is simple in structure and convenient to disassemble and assemble, and can achieve real-time monitoring of the axial force of each bolt in a whole flange.

Description

technical field [0001] The invention belongs to the technical field of wind turbine safety monitoring, and designs a conveniently installed ultrasonic fan flange bolt axial force monitoring system based on the principle of acoustic elasticity. Background technique [0002] As a relatively mature renewable energy technology, wind power generation has been paid more and more attention by countries all over the world. Bolts are used as fasteners for the connection of towers, blades, hubs, nacelles, etc. of wind turbines. Therefore, whether the bolts are loose or not will have a great impact on the stability of the entire fan system, and in severe cases may cause damage to the entire fan. The axial force of the bolt can directly reflect the stressed state of the bolt, especially whether the bolt is loose or broken. Therefore, the fault diagnosis and on-line monitoring of the axial force of the fan flange bolts are very necessary. [0003] Ultrasonic measurement technology bas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/24
CPCG01L5/246
Inventor 王玉辉刘展庞宇罗治军
Owner 北京能高普康测控技术有限公司
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