Production method for vertical stranded tension insulating pipe

Abstract

The invention provides a production method for a vertical stranded tension insulating pipe. The method comprises the following steps that firstly, a plurality of fiber yarns pass through yarn passingholes in strand gears through a limiting yarn passing plate; then a motor provides the power for a motor transmission gear to drive the motor transmission gear to rotate, and the motor transmission gear transmits the power through a chain to drive all the yarn strand gears to rotate; the yarns passing through the strand gears are stranded into a strand of a stranded rib under the rotation of the strand gears, and a plurality of strands of stranded ribs passing through the plurality of strand gears pass through the space between an inner die and an outer die in an inner and outer die forming mechanism, and spiral reinforcing ribs are formed between inner and outer layers of a pipe after the ribs are immersed and cured. According to the method, a plurality of strands of basalt fiber yarns are subjected to pre-wetting through resin adhesive solution and then stranding to form a spirally wound structure to be made into the reinforcing ribs through curing; and then the basalt fiber yarns, felt, the adhesive solution and the like are added into the dies for secondary curing, thereby improving the strength of supporting ribs in the hollow structure, and improving the strength of the product.

Description

technical field [0001] The invention relates to the field of insulating pipes, in particular to a production method for vertical strand tensioned insulating pipes, which is suitable for products such as composite insulators, composite cross-arms, and composite components. Background technique [0002] There are nearly 50,000 substations and step-up stations in the country, and there are countless porcelain bottles and insulators in them. Every year, there are countless cracking and breaking of porcelain bottles and the aging of insulators, and the safety hazard is extremely serious. How to inspect, overhaul and replace porcelain bottles and insulators is an urgent problem to be solved in the power industry. [0003] At present, most of the crossarms on the towers are steel structures, some of which use insulating crossarms, which generally have problems such as excessive deflection, insufficient design strength, insufficient resistance to electric tracking, acid, alkali and ...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the crossarms on the towers are steel structures, some of which use insulating crossarms, which generally have problems such as excessive deflection, insufficient design strength, insufficient resistance to electric tracking, acid, alkali and salt corrosion, and insufficient aging resistance, which cannot meet the needs of transmission lines. Long-term running requirements

[0004] Whether it is a composite insulator or a composite cross arm or other insulating composite pipes, the existing composite pipes cannot meet the needs of use

Images