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Transformer oil ignition experiment device and method

A technology of transformer oil and experimental device, which is applied in the investigation stage/state change, chemical analysis by combustion, etc. The effect of improving reliability, reducing fire occurrence and increasing service life

Pending Publication Date: 2021-07-27
ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is: how to solve the problem that the ignition point detection data of transformer oil in the prior art is not accurate enough, there is no device for testing the minimum ignition energy of transformer oil ignition at different initial temperatures, and there is no transformer oil Experimental platform for research data on ignition and combustion mechanisms

Method used

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  • Transformer oil ignition experiment device and method
  • Transformer oil ignition experiment device and method
  • Transformer oil ignition experiment device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Such as figure 1 As shown, the transformer oil ignition experimental device includes a transformer simulation component 1, a fuel supply recovery component 2, an electric spark generation component 3, and a heater 4 for heating the transformer oil in the transformer simulation component 1;

[0059] The transformer simulation assembly 1 includes a transformer simulation housing 11, three fixed brackets 12 for installing and fixing a temperature measuring element, and the temperature measuring element in this embodiment is a thermocouple (the thermocouple is not shown in the figure); three A fixed bracket 12 extends into the inside of the transformer simulation housing 11, and the top end extends out of the transformer simulation housing 11. The thermocouple can be connected with an external data storage device, and can record the temperature after measuring the temperature; the fuel supply recovery assembly 2 includes a supply Fuel pipeline 21 and recovery fuel pipeline ...

Embodiment 2

[0066] Such as image 3 As shown, on the basis of the first embodiment above, in this embodiment, the fuel supply recovery assembly 2 further includes an oil storage pool 23, a recovery pool 24, and a bearing frame 25,

[0067]The load-bearing frame 25 includes two layers of load-bearing plates arranged up and down, the oil storage pool 23 is placed on the upper load-bearing plate, the recovery pool 24 is placed on the lower load-bearing plate, and one end of the fuel supply pipeline 21 is connected to the oil storage plate. The lower part of the tank 23 is connected, and the other end is connected to the first hole 115 of the transformer simulation housing 11. One end of the recovery fuel pipeline 22 is connected to the recovery tank 24 or is bent downward at the end to form a With a faucet-like structure, the height of the recovery pool 24 is lower than the lowest point of the recovery fuel pipeline 22 , and the other end is connected to the second hole 116 of the transforme...

Embodiment 3

[0070] This embodiment provides the experimental method adopting above-mentioned embodiment two:

[0071] Step S01: Assemble the transformer oil ignition experimental device; specifically, install and arrange the transformer simulation component 1, the fuel supply recovery component 2, the electric spark generation component 3, and the heater 4, assemble the transformer simulation housing 11, and set the ignition The electrodes 32 are inserted into the preset symmetrical fixing holes of the transformer simulation housing 11, and the ignition electrodes 32 are adjusted to a suitable distance and fixed, and the first hole 115 and the second hole 116 of the transformer simulation housing 11 are respectively connected to the fuel supply pipeline 21. Connect the recovery fuel pipeline 22, and properly adjust the adjusting bolt 26, so that the bearing frame 25 is located at a suitable height; insert the thermocouple into the fixed bracket 12 and fix it; set the data storage path to s...

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Abstract

A transformer oil ignition experiment device comprises a transformer simulation assembly, a fuel supply and recovery assembly, an electric spark generation assembly and a heater. The transformer simulation assembly comprises a transformer simulation shell and a plurality of temperature measuring pieces. The temperature measuring pieces extend into the transformer simulation shell, the fuel supply and recovery assembly comprises a fuel supply pipeline and a fuel recovery pipeline, and the fuel supply pipeline and the fuel recovery pipeline are communicated with the transformer simulation shell. The electric spark generation assembly comprises an electric spark generator and an ignition electrode, the ignition electrode is connected with the electric spark generator, and the ignition electrode is connected with the transformer simulation shell and extends into the transformer simulation shell. The invention further discloses a method adopting the transformer oil ignition experiment device. The device has the beneficial effects that the ignition process of transformer oil heating at different initial temperatures can be simulated, guidance is provided in the aspect of pre-control measures in the early stage of a transformer oil fire disaster, and the transformer fire disaster is fundamentally reduced.

Description

technical field [0001] The invention relates to the technical field of transformer oil heat detection, in particular to a transformer oil ignition test device and method. Background technique [0002] Power transformers, especially large oil-immersed power transformers, are important equipment for AC-DC transmission projects, and their reliability directly determines the stability and safety of AC-DC power transmission. Power transformers need to use a large amount of transformer oil as insulation and cooling medium, and the combustion of transformer oil is the root cause of fire and explosion accidents in transformers. Therefore, carrying out research on the combustion characteristics of transformer oil is the key to improving the reliability of power supply and fire extinguishing systems. Accurately grasping the ignition temperature and minimum ignition energy of transformer oil is an important indicator for judging and evaluating the fire hazard of transformer oil, and it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/12G01N31/12
CPCG01N25/12G01N31/12
Inventor 张佳庆尚峰举罗沙谢佳周亦夫张晓东孔得朋张红杰过羿黄玉彪苏文刘睿
Owner ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER
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