Rapid repair process for external insulation of water immersion power secondary equipment

A technology for secondary equipment and external insulation, applied in electrical components, detergent compositions, cleaning methods and utensils, etc., can solve problems such as corrosion damage to lines, equipment, damage to external insulation of equipment, and safe power supply. The effect of repairing process science, shortening power outage time and saving manpower and labor

Pending Publication Date: 2022-01-21

HENAN HENGAN ELECTRIC POWER

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AI-Extracted Technical Summary

Problems solved by technology

Since the general power distribution room or communication room is placed on the ground floor or first floor, the occurrence of waterlogging is a devastating blow to these power secondary equipment. Such as foreign matter, the external insulation of the equipment is damaged, which makes the power secondary equipment unable to meet the power transmission conditions, thus prolonging the power outage time of the power secondary equipment due to floods

[0004] In order to deal with the sediment and other for...

Method used

According to the regulation of GB/T 11446.1 " electronic grade water ", adopt the deionized water of the EW-Ⅳ grade and the above grade of removing anion and cation in water, when removing silt stain, conductive anion and cation are also Clean it up to ensure the insulation performance of the equipment; when cleaning, control the pressure of the spray gun to 0.4-0.6Mpa (the maximum cannot exceed 0.7 Mpa), and the flushing time of each equipment should not be less than 10 minutes, and the water flowing out should be clear and invisible Sediment, dirt: After washing, use a fan to dry the water at room temperature. The blowing time for the wading part should not be less than 10 minutes, and the distance from...

Abstract

The invention discloses a rapid repair process for external insulation of water immersion power secondary equipment. Firstly, dirt such as silt inside and outside electric power secondary equipment are washed by using deionized water, and water is blown dry at normal temperature by using a fan after washing; a high-insulation cleaning agent is used for spraying and washing the electric power secondary equipment, and water remaining in the electric power secondary equipment, crevices and the surface of the electric power secondary equipment is removed through hydrophobicity and volatility replacement of the insulation cleaning agent; hot air drying equipment is adopted to dry and blow the surface of the power secondary equipment, so that the surface of the power secondary equipment is dry and moisture-free; the electric power secondary equipment with is sprayed an insulation repairing agent, and then the electric power secondary equipment is dried by adopting hot air drying equipment to form a layer of insulation film on the surface of the electric power secondary equipment; and the insulation value of the power secondary equipment is measured according to regulation requirements, and repair can be completed if the requirements are met. The repair process is scientific, the whole repair can be completed within two hours, the repair efficiency is high, and the power failure time is greatly shortened; and the repair is finished at a time without interruption, so that manpower is saved.

Application Domain

Pretreated surfacesOrganic non-surface-active detergent compositions +4

Technology Topic

Hot blastProcess engineering +7

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Examples

Experimental program(1)

Example Embodiment

[0020] The process flow of the present application will be described in detail below to understand the understanding of those skilled in the art.

[0021] The electrical secondary apparatus according to the present invention includes various electric motors, generators, transformers, relays, switches, truffles, brushes, batteries, antenna and other electrical equipment.

[0022] like figure 1 As shown, the water immersion power secondary device of the present invention includes the following steps:

[0023] First step, washing

[0024] According to the provisions of GB / T 11446.1 "Electronic grade water", it is used to remove ionic water in the water and cationic EW-IV grade and above, while clearing the sediment stains while removing the electrically conductive anion and cation cleaned, Thus, the device's insulation; when cleaning, the control of the gun pressure is 0.4-0.6MPa (maximum can not exceed 0.7 MPa), each equipment is not less than 10 minutes, should be done, the water is clear, there is no sediment, Dirt; after flushing, the wind turbines are used for normal temperature, and the water-related portion of the water should not be less than 10 minutes. It is not less than 10 cm from the equipment. It should be reached without having a visible water droplets, and there is no dry effect of the surface of the water.

[0025] Step 2, high insulation cleaning agent spray

[0026] In order to make the residual moisture that are not directly leaked inside, the applicant is initially cleaned with the electrical secondary device with deionized water, and then uses an insulating cleaning agent to deliver the power secondary equipment (second cleaning. )

[0027] In order to ensure the effect of the water, the high insulating cleaning agent used by the applicant is a weight ratio of 60 # solvent oil, tetrachloforne, Tenluoropentane and the naphtha. Click here The proportion accurately weighs four liquids 60 # solvent oil, tetrachlorethylene, tetrafluoropentane and naphtha, and press it in the reaction kettle to stir for 15 to 20 minutes, so that mixing is uniform, then put the reactor The molecular sieve drying apparatus is allowed to stand for 20 minutes, remove moisture mixed in the air, reducing the water content of high insulating cleaner, i.e., a high insulating cleaning agent finished product.

[0028] After testing, the physical and chemical indicators of the high insulating cleaning agent finished product are:

[0029]

[0030] The high insulating cleaning agent not only has high insulating properties, but also quickly evaporates, quickly takes away the liquid and moisture of the equipment in the device.

[0031] When spraying with high insulating cleaning agent, the spray gun pressure should be controlled at 0.4-0.6MPa (maximum of more than 0.7 MPa) to prevent equipment mechanical damage.

[0032] The standard of the second spray is the residual moisture without direct leakage.

[0033] The third step, hot air dries

[0034] After spraying with high insulated cleaning agent, the hot air drying equipment (such as a hot fan) is used for blowing, and the drying time of each electric secondary device shall not be less than 20 minutes, and the wind temperature should not exceed 60 ° C, and the hot air spacing power is. The distance from the secondary device should not be less than 10 cm. It is strictly forbidden to align a certain part of the equipment such as fiber, board card. After the job is completed, the outside of the equipment should be fully dry, there is no visible water-bearing and cleaning agent.

[0035] Fourth step, spraying rapid insulation repair agent

[0036] After ensuring sufficient dryness, the fast insulator is sprayed in the surface of the device to restore the external insulation of the secondary device.

[0037] In order to ensure the insulation safety of the electrical force, the present application uses specially preformed insulation repair agents:

[0038] From 46 # oil, naphtha, ethyl silicone oil, 10 # white oil, zinc alkyl acid, and tetrachlorethylene, according to the weight ratio of 10: 15: 50: 5: 1: 14: accurate weighing 46 # oil, naphtha, ethyl silicone oil, 10 # white oil, zinc alkoate and tetrachloride, sequentially put the raw material to the reactor to stir for 20 to 30 minutes, make it mixed uniform, then the reactor After placing in a molecular sieve drying device for 20 minutes, the same, its object is to remove moisture mixed in the air to reduce the water content in the insulator, i.e., a rapid insulation repair agent finished product.

[0039] After testing, the physicochemical indicators of the newly insulated repair agent finished product are:

[0040]

[0041] When spraying, the spraying equipment is used in 0.1 ~ 0.2 l / m. 2 Spraying, the repair agent has the ability to quickly disperse along the surface of the device, which can form a layer of liquid film on the surface of the electric power secondary device; then use a hot air drying equipment (such as a hot air gun) to dry, dry, hot air gun In the wind pressure, the distance from the equipment shall not be less than 10 cm, and the temperature must not exceed 60 ° C, and the liquid film can be formed after drying the liquid film (thickness 0.05 to 0.1 mm).

[0042] The fifth step is required to measure the insulation value of the electricity secondary equipment (500V Megou Test Equipment to the ground, in line with the requirements, the repair work can be completed.

PUM

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