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A monitoring and early warning method and system for loosening failure of suspension equipment

A technology of suspension equipment, monitoring and early warning, applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve problems such as many fastening bolts, difficult monitoring, and impossible detection of welding parts, etc., to achieve strong Implementability, saving time and manpower, rich data support effects

Active Publication Date: 2017-12-15
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology can only detect the bolt fastening part, and the welding part cannot be detected, and for the equipment fixed by multiple bolts, the number of monitoring points is large, and the monitoring is difficult; therefore, for the suspension equipment in the tunnel field, the installation and connection structures are various. There are many fastening bolts, complex loosening conditions, large number of fans and wide distribution. It is necessary to design a fault monitoring and early warning method that is simple to install and efficient to detect.

Method used

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  • A monitoring and early warning method and system for loosening failure of suspension equipment
  • A monitoring and early warning method and system for loosening failure of suspension equipment
  • A monitoring and early warning method and system for loosening failure of suspension equipment

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Embodiment 1

[0056] Such as figure 1 Shown is a method for monitoring and early warning of loose suspension equipment failure provided by the present invention, the method includes the following steps:

[0057] In step 201, a triaxial acceleration sensor 2 is installed on the jet fan 1, and the triaxial acceleration sensor 2 collects vibration information of the suspension equipment and sends the vibration information to a signal processor.

[0058] A preferred installation solution is to install a triaxial acceleration sensor 2 at the air inlet and the air outlet of the suspension device respectively. The reason why it is installed at the air inlet and outlet of the suspension equipment is that the vibration of the entire suspension equipment is most obvious at this position, and even a slight looseness can be more clearly reflected at the air inlet and air outlet. Such as image 3 As shown in FIG. 2 , it is a structural schematic diagram of a suspension device provided with a triaxial ...

Embodiment 2

[0071] Embodiment 1 gives how to implement a monitoring and early warning method for loosening of suspension equipment, which involves vibration data for reference. This embodiment will further elaborate on the vibration data for reference. Wherein, the vibration data used for reference is obtained through pre-testing and stored in the signal processor, specifically including:

[0072] Test the various states that the suspension device will appear in actual use, and record the vibration information returned by the triaxial acceleration sensor 2 in the corresponding state, and generate vibration data for reference according to the vibration information; wherein, the various The status includes: normal status, loose connection status and fracture status.

[0073] Such as Figure 4 As shown, it is the acceleration spectrogram in the Y direction of the air inlet end under the condition that the suspension equipment is not loose; Figure 5 As shown, it is the loosening case shown...

Embodiment 3

[0079] The embodiment of the present invention also provides a monitoring and early warning system for loosening of suspension equipment, such as Figure 8 As shown, the system includes one or more suspension equipment, a triaxial acceleration sensor 2 installed on the suspension equipment, a signal processor, such as Figure 8 As shown, specifically:

[0080] The triaxial acceleration sensor 2 collects vibration information of the suspension equipment, and sends the vibration information to a signal processor; the signal processor acquires the vibration information, and according to the vibration information carried in the message sending the vibration information, Suspension device identification, searching for reference vibration data; the signal processor analyzes the vibration information according to the vibration data, and determines the working state of the suspension device.

[0081] Preferably, after determining the working state of the suspension device, it also in...

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Abstract

The present invention is applicable to the field of wind turbine monitoring, and provides a monitoring and early warning method for loosening of suspension equipment. The method includes: a triaxial acceleration sensor is installed on the suspension equipment, and the triaxial acceleration sensor collects vibration information of the suspension equipment. and sending the vibration information to a signal processor; the signal processor acquires the vibration information, and searches for vibration data for reference according to the suspension device identification carried in the message sending the vibration information; the signal The processor analyzes the vibration information according to the vibration data, and determines the working state of the suspension device. The embodiment of the present invention can remotely monitor the fastening condition of the fan online in real time, without monitoring multiple fastening points of a single suspension device, saving a lot of time and manpower for manual detection, and providing rich data support for the maintenance and reinforcement of the fan. Really achieve on-demand, location-based maintenance, with strong implementation.

Description

technical field [0001] The invention belongs to the field of wind turbine monitoring, and in particular relates to a monitoring and early warning method and system for loosening faults of suspension equipment. Background technique [0002] Suspension equipment is a special axial flow fan, which is composed of collector, muffler, fairing, impeller, impeller section, etc. It is mainly used in the longitudinal ventilation system of tunnels such as roads, railways and subways to provide all thrust; also It can be used in sensitive parts of semi-horizontal ventilation system or horizontal ventilation system, such as the entrance and exit of tunnels, to induce airflow or exhaust smoke. Due to the ventilation function and effect requirements of the suspension equipment, most of the suspension equipment is installed at the top of the tunnel, directly above the road and track in the tunnel. [0003] Suspension equipment often starts and stops and generates rotational vibration, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00
Inventor 付维纲朱丹熊朝辉蔡崇庆刘俊夏继豪车轮飞林昶隆赵建伟胡清华陈玉远唐凯张建春吴建兴吴敏军
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP