Equipment for coating rtv anti-pollution flashover paint for porcelain or glass umbrella type and bell jar type insulators

Abstract

The invention discloses RTV anti-contamination flashover paint coating equipment for a porcelain or glass umbrella or bell jar shaped insulator. The equipment comprises a main frame, a machine head rotary frame, a reducing frequency conversion motor and a fast insulator connector. The machine head rotary frame is rotationally connected to the main frame through a rotary shaft and bearing seats of two ends; the reducing frequency conversion motor is fixedly arranged on the machine head rotary frame; the output shaft of the reducing frequency conversion motor is connected to the fast insulator connector. The equipment has the advantages that the dip-coated porcelain or glass insulators of different specifications are stable in quality, the surfaces are smooth and are free of bubbles, the coating layers are free of accumulation and drop hanging, and the thickness is even; in the dip-coating process, the VOC emission amount is small, and the production is environment-friendly and safe; the dip-coating automation level is high, operation is easy, factories of the porcelain or glass insulators of different specifications can implement porcelain and glass insulator industrial automatic RTV anti-contamination flashover paint coating production through the equipment, and large amount of cost can be saved.

Description

technical field [0001] The invention relates to the technical field of paint dipping, in particular to equipment for coating RTV anti-pollution flashover coatings on porcelain or glass umbrella and bell insulators, and is mainly used for dip coating of porcelain or glass umbrella and bell insulators. Background technique [0002] Porcelain or glass umbrella-type and bell-type insulators are widely used in substations and are commonly used outdoor insulators. Their application places determine that they need to have good anti-pollution performance. In order to avoid the occurrence of pollution flashover accidents, various measures such as adjustment of creepage distance, water flushing, semiconductor glaze insulators and spraying of hydrophobic coatings are generally adopted. However, in the anti-pollution flashover work of substations, the adjustment and creeping methods are limited, and the replacement of equipment or external insulating parts is time-consuming and expensiv...

AI Technical Summary

Problems solved by technology

However, with the rapid development of the market, the power industry has higher and higher requirements for the construction quality of RTV anti-fouling flashover coatings. In addition, there are more and more insulator manufacturers, and the competition is becoming more and more fierce. The quality requirements for products It is also getting higher and higher, and the disadvantages of manual brushing insulators are gradually highlighted, such as poor coating uniformity, poor appearance quality, a small amount of bubbles in the coating, low production efficiency, and higher and higher labor costs.

[0005] Manual dipping method: the coating is relatively uniform, but the quality stability of the product is not high, it is greatly affected by human factors, and defective products are prone to appear

Moreover, the labor intensity is high, and the efficiency of dip coating is still low, which cannot meet the market demand

[0006] Artificial air spraying method: this method also has shortcomings

1. Due to the special structure and complex shape of umbrella and bell-shaped insulators, especially for umbrella-shaped insulators with two, three or more layers, the groove of the umbrella ring is deep, and dead angles are prone to appear during the spraying process; 2. The spraying is uneven, The thickness is not easy to grasp, and it is easy to produce quality defects such as dripping, skinning, accumulation and bubble generation; 3. In the spraying process, in order to achieve a certain coating thickness, it is necessary to repeat the procedures of spraying and surface drying, which cannot be completed at one time Spraying is time-consuming, labor-intensive, and inefficient; 4. During the spraying process, the volatile solvents in the paint are discharged at least more than 50%, which pollutes the environment and poses a great threat to human health. The emission of volatile solvents by manual dipping is basically below 50%, which is relatively safer

[0007] To sum up, none of the existing three construction methods can meet the requirements of high efficiency, automatic coating, high quality level and quality controllability, low environmental protection, and high safety.

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