A hanger structure for boiler superheater

Abstract

The invention relates to the technical field of pipe hanging of a boiler superheater, and in particular to a hanging clamping frame structure for a boiler superheater. The hanging clamping frame structure can solve the problems of heat transfer due to connection and heat expansion and guarantee normal operation. The hanging clamping frame structure comprises a protection plate and a superheater pipe clamp, and is characterized in that the superheater pipe clamp is connected to one end of a supporting rib plate; the other end of the supporting rib plate is a T-shaped head; a bottom plate is mounted on the protection plate; a side surface of the T-shaped head end of the supporting rib plate clings to a vertical reinforcement of the protection plate closely; a bottom surface of the supporting rib plate is supported on an upper end face of the bottom plate; two angular septum plates which are arranged at two sides of the T-shaped head and closely cling to the T-shaped head are also mounted on the bottom plate.

Description

technical field [0001] The invention relates to the technical field of boiler superheater pipe system suspension, in particular to a bracket structure for boiler superheater suspension. Background technique [0002] At present, the superheater at the tail of some boilers is suspended by hanging pipes, see figure 1 As shown, the flue gas temperature in the superheater area is about 800°C, and the hanging pipe can be water-cooled or steam-cooled, so that the hanging pipe can be cooled by water or steam to ensure strength and safety. But because the hanging pipe adopts pipes (not less than φ42), it will occupy a certain space, so the distance between the superheater pipes should not be too small. In this way, the superheaters can only be arranged in line, and the heat transfer coefficient of the superheaters arranged in line is lower than that of the superheaters arranged in staggered lines, which will make the area of ​​the superheaters arranged more; at the same time, becaus...

AI Technical Summary

Problems solved by technology

But the fixing of the pipe clamp is a problem, because in the high-temperature area, if the ventilation beam is used, the ventilation beam must be made of high-temperature resistant materials, and a thick refractory insulation material needs to be laid around the ventilation beam. The ventilation beam will block the flue and affect heat transfer

If the pipe clamp is fixed and welded on the guard plate through the rib plate, the temperature of the hanging rib plate is very high, the heat will be transferred to the guard plate through welding, and the guard plate is welded with the pillars around the guard plate, and the guard plate cannot expand freely, which will cause structural problems

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