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Hydraulic slip ring leakage state monitoring system and method

A condition monitoring system, hydraulic slip ring technology, applied in the pipeline system, general control system, control/regulation system, etc., can solve the problems of seal aging, harsh natural environment, environmental pollution, etc., to reduce losses, reduce risks and labor intensity effect

Pending Publication Date: 2022-03-22
DALIAN HUARUI HEAVY IND GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many factors that cause leakage, such as seal aging, equipment manufacturing, installation quality, etc. Under the current conditions, it is difficult to achieve no leakage at all
Moreover, because the working area of ​​the hydraulic slip ring is offshore, the natural environment is harsh, and no one controls it under normal circumstances, so the leakage is not easy to be found in time, which not only causes huge direct and indirect economic losses, but also pollutes the environment

Method used

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  • Hydraulic slip ring leakage state monitoring system and method
  • Hydraulic slip ring leakage state monitoring system and method
  • Hydraulic slip ring leakage state monitoring system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Embodiment 1: pressure sensor direct detection;

[0072] Two wireless pressure sensors are installed on both sides of each seal of each set of slip rings. Since three seals are set on the upper part of the slip ring and three seals are set on the lower part, each set of slip rings is equipped with 12 sets of wireless pressure sensors 1.1 to 1.12. See figure 2 .

[0073] 12 sets of wireless pressure sensors 1.1 to 1.12 collect the on-site pressure signals in real time, and convert the detection signals into digital signals through the wireless transmitter 3.1, and send them to the wireless gateway 3.1 in two groups, and the wireless gateway 3.1 receives all the collected on-site pressure signals. The on-site signal is transmitted to the first Ethernet communication module 2.4 by using the TCP / IP protocol, and the first Ethernet communication module 2.4 writes the on-site detection data into the CPU2.3, see figure 1 .

[0074] CPU2.3 records the real-time detection da...

Embodiment 2

[0076] Embodiment 2: Vibration identification of eddy current sensor;

[0077] Each set of slip rings is provided with an eddy current sensor in the radial direction and axial direction of the main bearing, which are respectively the first eddy current sensor 1.13 and the second eddy current sensor 1.14, arranged at 90°, see image 3 . The first eddy current sensor 1.13 and the second eddy current sensor 1.14 collect the vibration signal of the main body of the hydraulic slip ring in real time, convert the signal into an electrical signal through the preamplifier of the sensor and filter it, and transmit it to the dynamic monitoring of the PLC state monitoring substation Module 2.8, see figure 1 .

[0078] The dynamic monitoring module 2.8 receives the vibration signal collected on site, ① A / D conversion is performed on the data, and the vibration signal is converted from an analog signal to a digital signal; ② FFT transform (fast Fourier transform) ③ Record the measured tim...

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Abstract

The invention provides a hydraulic slip ring leakage state monitoring system and method, and the system comprises a detection instrument system, a PLC data collection and processing system, a wireless communication system, and an upper monitoring system. The detection instrument system comprises a wireless pressure sensor and an eddy current sensor, the wireless pressure sensor is used for measuring a pressure signal of a leakage medium, and the eddy current sensor is used for measuring a vibration signal of the slip ring main body; the PLC data acquisition and processing system is used for acquiring a pressure signal and a vibration signal acquired by the detection instrument system, and processing and analyzing the signals; the wireless communication system is used for realizing data transmission between the detection instrument system and the PLC data acquisition and processing system; and the upper monitoring system is used for acquiring an analysis result of the PLC data acquisition and processing system and carrying out early warning, alarming and real-time dynamic display on the leakage condition of the hydraulic slip ring. According to the technical scheme, leakage can be accurately found in real time so as to be timely processed, the leakage amount is reduced, and loss is reduced to the maximum extent.

Description

technical field [0001] The present invention relates to the technical field of hydraulic slip ring leakage detection, in particular to a hydraulic slip ring leakage state monitoring system and method. Background technique [0002] Hydraulic slip rings work under high pressure and large flow conditions, and oil leakage often occurs during oil delivery. There are many factors that cause leakage, such as seal aging, equipment manufacturing, installation quality, etc. Under the current conditions, it is difficult to achieve no leakage at all. Moreover, because the working area of ​​the hydraulic slip ring is at sea, the natural environment is harsh, and no one controls it under normal circumstances, so the leakage is not easy to be found in time, which not only caused huge direct and indirect economic losses, but also polluted the environment. Contents of the invention [0003] According to the technical problems raised above, a hydraulic slip ring leakage state monitoring sy...

Claims

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Application Information

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IPC IPC(8): F17D5/06G05B19/042
CPCF17D5/06G05B19/0423
Inventor 陈秀实孙章权高飞高华尹云辛顺
Owner DALIAN HUARUI HEAVY IND GRP CO LTD