Unlock instant, AI-driven research and patent intelligence for your innovation.

Insulating oil purification method

A technology for insulating oil and carbon dioxide, which is applied in the petroleum industry, refining hydrocarbon oil, refining waste oil, etc., and can solve problems such as insulating oil decomposition

Active Publication Date: 2018-05-04
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention discloses a method for purifying insulating oil, which can effectively solve the problem of high-temperature reaction in the process of filtering and removing insoluble particulate impurities and adsorbing and removing soluble impurities in the oil, which can cause high-temperature reactions in the prior art. Technical defects of insulating oil decomposition

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Insulating oil purification method
  • Insulating oil purification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The present invention provides a kind of purification method of insulating oil, embodiment 1 comprises the following steps:

[0030] Before the purification treatment of the insulating oil, the physical and chemical indicators of the insulating oil are dielectric loss: 4.5%, breakdown voltage: 23kV, acid value: 0.15mgKOH / g, and interfacial tension: 24mN / m.

[0031] S201: Heat the insulating oil to be treated to 50°C, pass it into the extraction cylinder and keep the temperature constant;

[0032] S202: Compress carbon dioxide under the condition of 60MPa, and heat it to 50°C to keep the temperature of the insulating oil to be treated, pass it into the extraction cylinder and fully mix it with the insulating oil;

[0033] S203: Then compressed carbon dioxide enters the separator and releases the pressure to 6MPa, then enters the gas storage tank, and then returns to the extractor for recycling through the gas compressor;

[0034] S204: After 48 hours of circulating trea...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of insulating oil and in particular relates to an insulating oil purification method. The insulating oil purification method provided by the invention comprises the following steps: S101, mixing and extracting carbon dioxide of 30-70MPa and insulating oil in an extracting cylinder under a temperature condition of 40-80 DEG C; and S102, recovering carbondioxide into an air storage tank after extraction completion, and taking out the purified insulating oil from the extracting cylinder. According to the method disclosed by the invention, the technical defect in the prior art that the insulating oil is decomposed due to a high-temperature reaction in the process of filtering and removing insoluble particle impurities and adsorbing and removing soluble impurities in the oil by adopting the high-temperature reaction method is overcome.

Description

technical field [0001] The invention belongs to the technical field of insulating oil, and in particular relates to a method for purifying insulating oil. Background technique [0002] With the increasingly serious environmental pollution, environmental problems have become a key factor restricting the development of human society, among which mineral oil has a huge impact on the environment. Mineral oil is also listed on the National Hazardous Waste Inventory. Insulating oil is a petroleum refining product containing a variety of hydrocarbon components. It is widely used in electrical equipment such as transformers, reactors, and transformers. It has functions such as insulation, heat dissipation, arc extinguishing, and information carrier. Affected by oxygen, moisture, temperature, catalyst, electric field and other factors, insulating oil will continue to degrade and decompose, producing methanol, ethanol, acetone, sludge and other aging products, resulting in serious co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C10G21/08
CPCC10G21/006C10G21/08
Inventor 赵耀洪钱艺华陈天生张丽范圣平
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID