Large-caliber glass fiber-reinforced plastic ribbed pipe

Abstract

The invention discloses a large-caliber glass fiber-reinforced plastic ribbed pipe. The wall of the body comprises a liner layer, a continuous glass fiber-reinforced structure layer and a circumferential outer protective layer, and the outside of the circumferential outer protective layer is provided with a plurality of glass fiber fabric reinforcing rib rings which are arranged at intervals. The comprehensive internal pressure-resisting and external load-resisting capability of the large-caliber glass fiber-reinforced plastic ribbed pipe provided by the invention is greatly enhanced. The inner wall of the large-caliber glass fiber-reinforced plastic ribbed pipe is smooth, the rigidity of the large-caliber glass fiber-reinforced plastic ribbed pipe is high, and the size of the rib ring and the rib density can be designed according to rigidity requirement; compared with the rigidity of the pure glass fiber-reinforced plastic smooth pipe, the rigidity of the large-caliber glass fiber-reinforced plastic ribbed pipe is higher, and the large-caliber glass fiber-reinforced plastic ribbed pipe is lighter and stronger than the glass fiber-reinforced plastic mortar pipe; and as a novel delivery pipe, the large-caliber glass fiber-reinforced plastic ribbed pipe has the advantages of corrosion resistance, low fluid resistance, long service life and the like, is easy to maintain, and is particularly applicable to the fields of deeply buried large-caliber drainage pipelines, seawater delivery, seawater desalination and the like.

Description

technical field [0001] The invention relates to a large-diameter glass fiber reinforced plastic pipe. Background technique [0002] At present, FRP pipes are divided into pure FRP pipes and FRP sand-filled pipes according to the structure of the pipe body. Pure FRP pipes can withstand internal pressure better and have stable performance, but the external load rigidity is low. FRP sand-filled pipes are filled with quartz sand and other fillers in the production process to improve the external rigidity. Compared with pure FRP pipes, they have the advantages of high rigidity and low cost, but they also have the disadvantages of heavy weight and easy damage. Contents of the invention [0003] The object of the present invention is to provide a fiberglass pipe structure capable of high rigidity, light weight and high strength. [0004] The purpose of the present invention is specifically achieved through the following technical solutions: [0005] Large-diameter FRP reinforce...

AI Technical Summary

Problems solved by technology

[0002] At present, FRP pipes are divided into pure FRP pipes and FRP sand-filled pipes according to the structure of the pipe body. Pure FRP pipes can withstand internal pressure better and have stable performance, but the external load rigidity is low.

FRP sand-filled pipes are filled with quartz sand and other fillers in the production process to improve the external rigidity. Compared with pure FRP pipes, they have the advantages of high rigidity and low cost, but they also have the disadvantages of heavy weight and easy damage.

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