Limiting structure of S-shaped piping system

Abstract

The invention provides a limiting structure for an S-shaped piping system, which is used for preventing pipes of the piping system from being deformed by longitudinal heating under the condition that S-shaped pipes are long in the horizontal direction, and ensuring the thermal efficiency of a boiler. The limiting structure comprises S-shaped pipes which are arranged horizontally, wherein the horizontal segments of the S-shaped pipes are long; the upper layers and the lower layers of the S-shaped pipes are hoisted on upper transverse beams through hoisting assemblies; and the hoisting assemblies are positioned at the middle positions of the horizontal segments of the S-shaped pipes. The limiting structure is characterized in that limiting blocks are arranged between the upper layers and the lower layers at the two ends of the horizontal segments of the S-shaped pipes at certain intervals; the upper sides of the limiting blocks are connected with upper layer S-shaped pipes by welding; and the lower sides of the limiting blocks are connected with lower layer S-shaped pipes by welding.

Description

technical field [0001] The invention relates to the technical field of connection structures of boiler serpentine pipes, in particular to a position-limiting structure of serpentine pipe systems. Background technique [0002] Large-scale pulverized coal boilers have many serpentine piping systems of superheaters, reheaters or economizers arranged horizontally, and pipe clamps, suspension pipes or end supports are often used as fixing devices, but at the level of serpentine pipes In the case of a long section, the tubes of the piping system will be deformed due to the lack of limit points after being heated longitudinally, which will affect the thermal efficiency of the boiler. Contents of the invention [0003] In view of the above problems, the present invention provides a limiting structure of the serpentine pipe system, which ensures that when the serpentine pipe is horizontally long, the pipes of the pipe system will not be deformed after being heated in the longitudin...

AI Technical Summary

Problems solved by technology

[0002] Large-scale pulverized coal boilers have many serpentine piping systems of superheaters, reheaters or economizers arranged horizontally, and pipe clamps, suspension pipes or end supports are often used as fixing devices, but at the level of serpentine pipes In the case of a long section, the tubes of the piping system will be deformed due to the lack of limit points after being heated longitudinally, which will affect the thermal efficiency of the boiler.

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