On-load voltage regulating oil quality online monitoring apparatus

A monitoring device and quality technology, applied in the direction of measuring device, sampling device, material inspection product, etc., can solve the problems of inaccurate detection results, uneven sampling of pressure regulating oil by the detection device, backlog of impurities, etc., so as to avoid inaccurate detection. Effect

Active Publication Date: 2018-10-19
HAINAN POWER GRID CO LTD ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when using this method for monitoring, the detection device does not sample the pressure regulating oil uniformly, the flow of the pressure reg

Method used

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  • On-load voltage regulating oil quality online monitoring apparatus
  • On-load voltage regulating oil quality online monitoring apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] see Figures 1 to 4 , an on-line pressure regulating oil quality monitoring device, including a sampling tube, a sampling pump 1, a detection chamber 2, an oil sensor 3, a wireless module 4 and a processor 5; specifically, the oil sensor 3 includes a viscosity sensor and a density sensor Sensors for detecting the density and viscosity of the regulator oil. The sampling tube includes a support tube 6 and a flexible sampling hose 7 arranged in the support tube 6. Specifically, the wall of the flexible sampling hose 7 is formed by an extension steering wheel surrounding the flexible sampling hose 7. Constituted by twisted creases. The side of the support tube 6 is provided with a number of first oil inlet holes 8 equidistantly distributed, the two sides of the end of the telescopic sampling hose 7 are provided with second oil inlet holes 10 and the top is sealed by a plunger 9, the sampling The pump 1 injects the pressure-regulating oil to be tested into the detection ch...

Embodiment 2

[0030] see Figures 5 to 6 The difference between this embodiment and Embodiment 1 is that the telescopic sampling hose 7 communicates with the detection chamber 2 through the stirring chamber 17, and the pressure regulating oil coming in from the telescopic sampling hose 7 first passes through the stirring chamber 17, A first one-way valve 18 is provided between the telescopic sampling hose 7 and the stirring chamber 17, a second one-way valve 19 is provided between the stirring chamber 17 and the detection chamber 2, and a first one-way valve 19 is provided between the stirring chamber 17 and the detection chamber 2. The one-way valve 18 and the second one-way valve 19 prevent the pressure regulating oil from flowing backward, and the stirring chamber 17 is provided with a stirring blade 21, and the stirring blade 21 is driven by a first motor 23, and the first motor 23 is connected with the processing Device 5 is connected. Under the control of the processor 5, the first m...

Embodiment 3

[0033] see Figures 7 to 8 , The difference between this embodiment and Embodiment 2 is that the oil discharge port 11 is connected to the oil discharge chamber 29 through the third check valve 28, the third check valve 28 prevents the pressure regulating oil from flowing backward, and the oil discharge chamber 29 It is a hollow cylinder with a second piston 26 inside, and the piston reciprocates to suck in and discharge the pressure regulating oil. The oil discharge chamber 29 is provided with a linear motor 24 to push the second piston 26. Pushed by the motor 24 , the second piston 26 sucks in and discharges the pressure regulating oil. The oil discharge chamber 29 discharges oil through the oil discharge pipe 22 , and the oil discharge pipe 22 is provided with a pressure relief valve 20 . The pressure relief valve 20 maintains a certain pressure of the oil discharge pipe 22 so that the oil can be sprayed out from the oil discharge pipe 22 to avoid accumulation at the oil ou...

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PUM

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Abstract

The invention discloses an on-load voltage regulating oil quality online monitoring apparatus, which comprises a sampling pipe, a sampling pump, a detection chamber, an oil product sensor, a wirelessmodule and a processor, wherein the sampling pipe comprises a support pipe and a stretching sampling hose arranged in the support pipe, the side surface of the support pipe is provided with a plurality of first oil inlet hole arranged at equal intervals, both ends of the end of the stretching sampling hose are provided with second oil inlet holes, the top portion of the stretching sampling hose issealed by a plunger, the sampling pump injects to-be-detected voltage regulating oil into the detection chamber through the stretching sampling hose, the oil product sensor is arranged in the detection chamber, the oil is discharged out of the detection chamber through an oil discharge port, and the oil product sensor, the wireless module and the sampling pump are respectively connected to the processor. According to the present invention, with the on-load voltage regulating oil quality online monitoring apparatus, the voltage regulating oils at the multiple positions are sampled during the detecting so as to improve the accuracy of the detection.

Description

technical field [0001] The invention relates to the technical field of transformer detection, in particular to an on-line quality monitoring device for on-load voltage regulating oil. Background technique [0002] The viscosity, density, dielectric constant and temperature of the voltage regulating oil in the oil-immersed on-load voltage regulating power transformer will change after being used for a period of time. The state of the oil product is reflected by the detection of oil viscosity and density. Oil change period, etc. Usually, the monitoring device for the quality of the on-load pressure regulating oil is installed at the oil outlet of the oil tank of the on-load pressure regulating switch. The oil sensor is immersed in the pressure regulating oil of the three-way valve through the three-way valve, and the The viscosity and density of the pressure regulating oil are tested. However, when using this method for monitoring, the detection device samples the pressure r...

Claims

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Application Information

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IPC IPC(8): G01N1/14G01N33/28
CPCG01N1/14G01N33/28G01N2001/1418
Inventor 林盾陈林聪石其斌陈钦柱王录亮林道鸿万信书
Owner HAINAN POWER GRID CO LTD ELECTRIC POWER RES INST
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