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Fault detection early-warning device for shield pump

A technology for fault detection and shielded pumps, which is applied to components, pumps, and pump control of pumping devices for elastic fluids, to achieve the effect of solving the problem of eccentric wear monitoring and early warning under all working conditions

Inactive Publication Date: 2018-10-02
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By sampling and analyzing the output signal of the deflection detection coil with position positioning and the output signal of the acceleration vibration sensor, the problem of eccentric wear monitoring and early warning of graphite bearings in all working conditions is solved.

Method used

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  • Fault detection early-warning device for shield pump
  • Fault detection early-warning device for shield pump
  • Fault detection early-warning device for shield pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing.

[0018] Such as figure 1 As shown, a fault detection and early warning device for shielded pumps includes a data acquisition unit, a display operation unit, a communication interface unit, a power supply unit, an MCU main control unit, and a fault detection sensor group, and the fault detection sensor group includes a deflection The detection coil and the acceleration vibration sensor placed in the direction perpendicular to the axis of the deflection detection coil, the stator winding temperature measurement sensor are PT-1000 thermal resistance and the stator space pressure measurement sensor, and the deflection detection coil and PT-1000 thermal resistance are respectively passed through the protective The line is connected with the data acquisition unit, which is used to collect the alternating voltage signal output by the deflection detection coil and the temperature me...

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Abstract

The invention relates to fault detection early-warning devices, in particular to a fault detection early-warning device for a shield pump. The fault detection early-warning device for the shield pumpcomprises a data acquisition unit, a display operation unit, a communication interface unit, a power supply unit, a main control unit (MCU) and a fault detection sensor set. According to the fault detection early-warning device for the shield pump, an offset detection coil is used as a reference position sensor, a PT-1000 thermal resistor and a stator spatial pressure measurement sensor are mounted on a stator winding, and an acceleration vibrating sensor is mounted on a graphite bearing seat. Through sampling analysis on an output signal of the offset detection coil with a positioning function and an output signal of the acceleration vibrating sensor, monitoring and early-warning of eccentric-wear of a graphite bearing in overall working conditions are achieved.

Description

technical field [0001] The invention relates to a fault detection and early warning device, in particular to a fault detection and early warning device for shielded pumps. Background technique [0002] Canned pumps are the core components for pressurized delivery of corrosive and harmful media in chemical, petroleum, pharmaceutical, nuclear industries and even high-speed rail trains. Their reliability and safety are important indicators of equipment operation and affect the overall safety of the production system. Due to the particularity of the structure of the canned pump - the rotating power unit of the pump and the conveying medium of the pump need to be highly isolated. The supporting bearing in the canned pump is a graphite bearing, which is a wearable consumable part in the operation of the canned pump and is also a weak point for the safe operation of the canned pump. In order to ensure safety during the operation of the canned pump, avoid the eccentric rotation of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D15/00F04D29/046
Inventor 王孝良萨仁朝格图王英洁张雪源
Owner DALIAN UNIV OF TECH
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