Integral self-standing type glass fiber-reinforced plastic internal barrel supporting system

Abstract

The invention discloses an integral self-standing type glass fiber-reinforced plastic internal barrel supporting system, which is characterized by comprising a steel structure external barrel for bearing, a composite material and an internal barrel for corrosion resistance sequentially from the outside to the inside, an annular steel beam which is used for bearing an upper independent glass fiber-reinforced plastic internal barrel is arranged on the top of the steel structure external barrel, and the lower part of the steel structure external barrel is supported on a foundation. The integral self-standing type glass fiber-reinforced plastic internal barrel supporting system ensures that the glass fiber-reinforced plastic internal barrel in the area of a flue outlet is integrally connectedto the internal barrel upon the flue outlet, an expansion joint is not arranged between vertical bearing structures, only a socket-and-spigot expansion joint is adopted for connection in the non-bearing glass fiber-reinforced plastic internal barrel, and the whole internal barrel meets the requirement on bearing capability and anti-corrosion function.

Description

technical field [0001] The invention relates to an integral self-supporting glass fiber reinforced plastic inner cylinder supporting device, which is arranged in the flue opening area and belongs to the technical field of chimney design and construction. Background technique [0002] Wet desulfurization technology has been implemented in my country for more than ten years, and has made great contributions to the defense of my country's blue sky. The flue gas emitted by wet desulfurization is "wet flue gas", and the chimney that discharges "wet flue gas" is "wet chimney", and "wet flue gas" causes serious corrosion to "wet chimney". After many years of chimney anti-corrosion practice and experience summarization, both at home and abroad believe that the use of "glass fiber reinforced plastic inner cylinder" is an ideal solution for "wet chimney" anti-corrosion. The implementation of this plan is to transform the original ordinary single-tube reinforced concrete chimney into ...

AI Technical Summary

Problems solved by technology

[0004] However, in the area of ​​the flue opening, due to the large opening size of the FRP inner cylinder, the bearing capacity of the inner cylinder is greatly weakened, so that the FRP inner cylinder cannot achieve "integral self-support" in the true sense. duct) and the upper inner cylinder are connected by expansion joints, that is, the inner cylinder (or flue) in the area of ​​the flue opening is self-supporting, and the inner cylinder at the upper part of the flue opening is self-supporting, and the connection between them is by expansion joints

The disadvantages of this implementation scheme mainly include: the inner cylinder needs expansion joints vertically, which increases the follow-up maintenance cost; the upper FRP inner cylinder needs an independent load-bearing support system, which increases the project cost and construction period; the inner cylinder (or flue) in the flue area ) often use hand-laid glass fiber reinforced plastics, the quality is not reliable, etc.

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