A glass steel pipe lining method for circulating water pipes lined with glass steel pipes

Abstract

The invention discloses a circulating water pipe lined with a glass steel pipe. The circulating water pipe lined comprises an original circulating water pipe and the glass steel pipe; the original circulating water pipe sleeves the glass steel pipe; cement mortar is arranged between the glass steel pipe and the original circulating water pipe. The invention also discloses a glass steel pipe lined method of the circulating water pipe lined with the glass steel pipe. The glass steel pipe lined method comprises performing partial excavation, placing the glass steel pipe and grouting the cement mortar to enable the glass steel pipe and the original circulating water pipe to be bonded into a whole. According to the circulating water pipe lined with the glass steel pipe, the resistance to the external pressure of the pipe is improved and the cost of the liner pipe is greatly reduced. According to the glass steel pipe lined method of the circulating water pipe lined with the glass steel pipe, the upper local shallow excavation or the lateral local half excavation is adopted and accordingly the earthwork excavation and backfilling working amount is small, the construction period is short, the cost is less, and the glass steel pipe lined method is quite suitable for reconstruction of old circulating water pipes of operated power plants.

Description

technical field [0001] The invention relates to the technical field of pipeline reconstruction in power plants, in particular to a circulating water pipeline lined with glass steel pipes and a method for lining the glass steel pipes. Background technique [0002] A large number of concrete pipes or steel pipes are used in the circulating water pipelines of power plants. Due to the poor internal pressure resistance of concrete pipes and the poor corrosion resistance of steel pipes, especially after a period of use, concrete pipes are prone to bursting; steel pipes are prone to corrosion and leakage , seriously affecting the normal operation of the power plant. [0003] If the concrete pipe or steel pipe is replaced, the diameter of the newly replaced concrete pipe or steel pipe cannot be smaller than that of the original concrete pipe or steel pipe, and the construction method of excavation operation is required. [0004] The circulating water pipes of power plants are usual...

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Problems solved by technology

[0004] The circulating water pipes of power plants are usually arranged with double pipelines, and the two pipelines cannot be modified and replaced at the same time. When replacing one of the pipelines, it is necessary to ensure the safe operation of the other pipeline. In addition, the distance between the two pipelines is small, and there are many places that cross the road , if the construction method of excavation is adopted, it will cause soil disturbance and landslide around the normal operation pipeline, resulting in the collapse of the operation pipeline

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