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Insulating oil sampling device and method

A sampling device and insulating oil technology, applied in the direction of sampling devices, etc., to achieve accurate data, reasonable and compact structure, and ensure representative effects

Pending Publication Date: 2021-12-17
ELECTRIC POWER SCI RES INST OF STATE GRID XINJIANG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a sampling device and method for insulating oil, which overcomes the deficiencies of the prior art, and can effectively solve the problems of sealing in the sampling process and the oil sample taken should represent the oil of the equipment body in the existing insulating oil sampling method

Method used

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  • Insulating oil sampling device and method
  • Insulating oil sampling device and method
  • Insulating oil sampling device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] as attached figure 1 As shown, an insulating oil sampling device includes a sealing device 1, a sampling pipeline 2 and an oil discharge pipeline 3; the sealing device 1 includes a gasket 4, and the two sides of the gasket 4 are respectively provided with an oil inlet port 5 and an oil outlet port 6 , a sample bottle interface 7 is arranged under the sealing gasket 4, and the sample bottle interface 7 is in sealing communication with the sample bottle 8; one end of the sampling pipeline 2 is connected to the sampling port interface and the insulating oil sampling port 9, and the other end of the sampling pipeline 2 is connected to the oil inlet interface 5. The other end of the oil inlet interface 5 is connected to the oil inlet pipe 10, and the other end port of the oil inlet pipe 10 extends into the sample bottle 8 and is close to the bottom of the bottle; one end of the oil discharge pipeline 3 is connected to a waste liquid barrel 12, and the other end of the oil dis...

Embodiment 2

[0040] Embodiment 2: The insulating oil sampling method using the insulating oil sampling device in Embodiment 1, the operation steps are as follows:

[0041] Step 1: Assemble the device, connect the insulating oil sampling port 9, the sampling valve 15, the sealing device 1, and the waste liquid bucket 12 with pipelines in sequence, close the sampling valve 15, open the cover of the sample bottle 8 pre-filled with pure water, and put the sample The bottle 8 is screwed into the sealing device 1, and the sample bottle 8 is in an upright state at this moment;

[0042] The second step: discharge the waste liquid, open the sampling valve 15 and the bypass valve 14, at this time, the insulating oil flows out from the insulating oil sampling port 9 and flows into the waste liquid barrel 12 through the bypass pipeline 13;

[0043] Step 3: Obtain the sample, and when the outflowing insulating oil is in a stable state, close the bypass valve 14, turn over the sealing device 1 connected...

Embodiment 3

[0044] Embodiment 3: The operation steps of the insulating oil sampling method are as follows:

[0045] Step 1: Assembling the device, connecting the insulating oil sampling port 9, sampling valve 15, first monitoring device 16, sealing device 1, second monitoring device 17, flow control valve 18, and waste liquid barrel 12 with pipelines to complete the device Assemble, close the sampling valve 15, the flow control valve 18, open the cover of the sample bottle 8 filled with purified water in advance, screw the sample bottle 8 into the sealing device 1, and at this time the sample bottle 8 is in the upright state;

[0046] Step 2: Drain the waste liquid, open the sampling valve 15 and bypass valve 14, gradually open the flow control valve 18, power on the first monitoring device 16 and the second monitoring device 17, enter the flow monitoring interface, and control the flow of insulating oil Within the range allowed by the monitoring device, the insulating oil flows out from ...

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Abstract

The invention relates to the technical field of insulating oil, in particular to an insulating oil sampling device and method. The device comprises a sealing device, a sampling pipeline and an oil discharging pipeline, wherein the sealing device is provided with a sample bottle which is hermetically communicated; one end of the sampling pipeline is a sampling port interface communicated with the insulating oil sampling port, and the other end of the sampling pipeline is communicated with the oil inlet interface; the oil inlet interface is communicated with an oil inlet pipe; the other end port of the oil inlet pipe extends into the sample bottle and is close to the bottle bottom; an oil discharging pipe is communicated with the oil discharging interface, and the other end opening of the oil discharging pipe extends into the sample bottle and is close to the bottle opening; a bypass pipeline is arranged on the sealing device, and a bypass valve is arranged on the bypass pipeline. The device is reasonable and compact in structure, an insulating oil sample is obtained in a liquid replacement mode, sealed sampling is achieved, the device has the advantages of being rapid, efficient and safe, the insulating oil sampling method based on the device is easy and convenient to operate, the sampling result is accurate, and synchronous on-line sample detection and sampling can be achieved at the same time.

Description

technical field [0001] The invention relates to the technical field of insulating oil, and relates to an insulating oil sampling device and method. Background technique [0002] Insulating oil is called the "blood" circulating in oil-filled electrical equipment. It mainly plays the role of insulation, heat dissipation and cooling, and extinguishing arcs. Its quality is directly related to the safe and stable operation of equipment and even the power grid. Transformer insulating oil The quality of the insulating oil affects the electrical performance of the insulating oil. In order to ensure the insulation performance of ultra-high voltage and ultra-high voltage electrical equipment, the requirements for the quality level of the insulating oil are very strict. Abnormal defects such as partial discharge and insulation deterioration gradually increased. Therefore, oil quality testing and oil chromatographic analysis must be regularly organized to monitor whether the insulating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/10
CPCG01N1/10Y02A90/30
Inventor 杨定乾韩丹丹郝建杨利民储后广岳云凯李龙飞罗文华张清川马春龙
Owner ELECTRIC POWER SCI RES INST OF STATE GRID XINJIANG ELECTRIC POWER