On-line monitoring system and method for suspension steel wire rope for hoisting container

Abstract

The present invention relates to an online monitoring system and method for a steel wire rope suspended from a lifting container. The system includes: a first sensing unit, a relay device at the top of the container, a receiving relay device at the wellhead, an analysis gateway, and a data display and analysis processing platform; the first The sensing unit is used for real-time acquisition of the first state parameter that can characterize the suspension wire rope; the container top relay device is arranged on the top of the lifting container and is electrically connected with the first sensing unit for receiving the first state parameters, and transmit them to the wellhead receiving relay device through frequency hopping spread spectrum and time division multiple access wireless technology; the wellhead receiving relay device is set on the inner wall of the wellbore or the wellhead, and is used to pass the received data through the analysis gateway Send to the data display and analysis processing platform. The invention can realize the real-time uninterrupted monitoring of the hoisting container suspension steel wire rope during periodic operation, and ensure the reliability and safety of the hoisting system in the deep well environment.

Description

technical field [0001] The invention relates to the field of safety monitoring, in particular to an online monitoring system and method suitable for a steel wire rope suspended from a hoisting container in a deep well environment. Background technique [0002] In a deep well environment (such as an elevator shaft, a mine, etc.), the lifting container (such as an elevator car body, a cage, etc.) is usually driven by a cooperation mechanism of a drum and a suspension wire rope. The monitoring of the use status of the suspension wire rope is very important to the safe operation of the lifting container. [0003] Existing suspension wire rope monitoring includes tension monitoring and lateral vibration signal monitoring. For example, in the Chinese utility model patent "A Tension Detection Device for Elevator Wire Rope" with the publication number CN203359719U, the end of each steel wire rope is provided with a tension detection device for the elevator wire rope. By making the ...

AI Technical Summary

Problems solved by technology

This scheme can only monitor the signal of lateral vibration, without considering the impact of longitudinal vibration on the lifting system

[0005] In short, in the existing technical practice and theoretical research, it is generally aimed at the suspension steel wire rope monitoring of mine depths below 500m, and there are few studies on deep mines above 500m

In the deep well environment of more than 500m, the signal transmission and penetration ability are weak, the energy loss is large, and the interference is large, which makes the real-time and accurate monitoring of the suspension wire rope difficult.

On the other hand, most of them focus on the monitoring of unilateral factors, and there is a lack of monitoring research on multiple factors

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