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Natural ester insulating oil adsorption treatment system and preparation method and application of natural ester insulating oil

A technology for adsorption treatment and insulating oil, which is applied in the direction of selective adsorption, ion exchange treatment devices, petroleum industry, etc. It can solve the problems that bound water is difficult to remove, and the insulation performance of natural ester insulating oil cannot be improved, so as to avoid quality degradation and good Water removal effect, stable property effect

Pending Publication Date: 2020-08-28
STATE GRID SHANDONG ELECTRIC POWER COMPANY WEIFANG POWER SUPPLY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The bound water contained in natural ester insulating oil is difficult to remove, and the existing preparation process of natural ester insulating oil cannot improve the insulating performance of natural ester insulating oil

Method used

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  • Natural ester insulating oil adsorption treatment system and preparation method and application of natural ester insulating oil

Examples

Experimental program
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Effect test

preparation example Construction

[0042] In the third aspect, a method for preparing natural ester insulating oil, the specific steps are: firstly subject the vegetable oil to the above-mentioned adsorption treatment method, and then perform vacuum drying treatment.

[0043] The order of vacuum treatment and adsorption treatment cannot be reversed. A small amount of water in natural ester insulating oil can ensure that polar substances are fully adsorbed by the adsorbent. If it is dried first, the adsorption effect will be affected.

[0044] In some embodiments of the present invention, the vegetable oil is one or more of natural vegetable oils such as soybean oil, palm oil, sunflower oil, and rapeseed oil. The present invention can be applied to natural ester insulating oils derived from various vegetable oils.

[0045] In some embodiments of the present invention, the vacuum drying temperature is 30-60°C, the vacuum degree is 0.3-0.7MPa, and the drying time is 2-6h; preferably, the vacuum drying temperature ...

Embodiment 1

[0060] 1. After the refined quartz sand, ZSM-5 molecular sieve and β-alumina particles with a particle size distribution between 0.1-0.25cm are dried at 70°C for 10 hours, they are packed in the adsorption column respectively, and each adsorbent is packed tightly. , the packing layer height of each particle in the adsorption column is 50 cm, and the diameter is 5 cm. Commercially available food-grade soybean oil was selected as vegetable oil, and the flow route of soybean oil was quartz sand adsorption column-molecular sieve adsorption column-alumina adsorption column, the flow mode was natural downflow, and then collected for vacuum drying.

[0061] 2. Transfer the soybean oil treated by the adsorption process into a wide-mouth container, and the diameter / height of the wide-mouth container is >10:1, and carry out vacuum drying. The vacuum drying temperature is 45°C, the vacuum degree is 0.5MPa, and the drying time is 4h. The dried soybean oil is quickly sealed and stored. T...

Embodiment 2

[0067] 1. Adsorption process and drying process steps are the same as in Example 1.

[0068] 2. Choose commercially available food-grade palm oil.

[0069] 3. The processing and analysis process is the same as in Example 1, and the analysis data of palm insulating oil are shown in Table 2.

[0070] Table 2

[0071] index result index result acid value 0.02mg / g pour point -20.5℃ water content 71.7mg / kg volume resistivity 1.8*10 10

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Abstract

The invention relates to a natural ester insulating oil adsorption treatment system and a preparation method and application of natural ester insulating oil. The system comprises a quartz sand adsorption device, a molecular sieve adsorption device and an aluminum oxide adsorption device which are sequentially connected in series. The natural ester insulating oil is obtained by utilizing an adsorption treatment and vacuum treatment combined treatment method. Polar substances in the natural ester insulating oil can be separated from an oil phase so that the insulating property of the natural ester insulating oil is improved. According to the vacuum drying technology, bound water in the natural ester insulating oil is separated from the oil at low temperature and low pressure. The electricalproperty and the chemical property of the natural ester insulating oil are obviously improved.

Description

technical field [0001] The invention belongs to the technical field of preparation of environment-friendly materials, and relates to a natural ester insulating oil adsorption system and a preparation method of natural ester insulating oil based on the combination of adsorption technology and deep water removal. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] With the continuous increase of industrial and commercial scale, the power consumption is constantly rising, and the construction scale of power transmission sites such as substations is constantly increasing. Therefore, the number of transformers used is also increasing. At present, transformer oil is mainly mineral ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D15/08C10M101/04C10N40/16
CPCB01D15/08C10M101/04C10M2207/401
Inventor 林凡勤杨晶晶赵斌财黄明洁黄学增栾国军金阿龙王飞飞徐克政许建王嘉雨李金宝
Owner STATE GRID SHANDONG ELECTRIC POWER COMPANY WEIFANG POWER SUPPLY
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