Arrangement structure for outlet pipeline of screen type superheater

Abstract

The invention provides an arrangement structure for an outlet pipeline of a screen type superheater. The arrangement structure is used for ensuring that the screen type superheater is not distorted and improving the safety and reliability of the running of a boiler. The arrangement structure comprises the screen type superheater, an outlet collection box of the screen type superheater, a connection pipeline, an aggregation pipeline and an inlet collection box of a high-temperature superheater, and is characterized in that: the aggregation pipeline is an aggregation collection box; the aggregation collection box is arranged above the outlet collection box of the screen type superheater; the outlet collection box of the screen type superheater is communicated with the aggregation collection box by a vertical connection pipe; the aggregation collection box is communicated with the inlet collection box of the high-temperature superheater by the connection pipeline; limit devices are sleeved at two ends, which are away from the vertical connection pipe, of the aggregation collection box; and a side wall water cooled wall upper collection box is fastened and connected to one end of each limit device.

Description

technical field [0001] The invention relates to the technical field of boiler structures, in particular to the layout structure of outlet pipes of panel superheaters. Background technique [0002] For the layout of the existing panel superheater outlet piping, see figure 1 , figure 2 , image 3 , which includes panel superheater 1, panel superheater outlet header 2, connecting pipeline 3, summary pipeline 4, high temperature superheater inlet header 5, panel superheater 1 leads to panel superheater outlet header 2, The outlet header 2 of the panel superheater is connected from the end to the collecting pipe 4 on both sides of the boiler through the connecting pipe 3 of the same specification, and then connected to the inlet header 5 of the high temperature superheater through the collecting pipe 4 . Due to the greater flexibility of the single connecting pipe 3 and the single panel superheater 1, and the greater rigidity of the inlet header 5 of the high temperature ...

AI Technical Summary

Problems solved by technology

Due to the greater flexibility of the single connecting pipe 3 and the single panel superheater 1, and the greater rigidity of the inlet header 5 of the high temperature superheater, after the boiler is in operation, the summarizing pipe 4 expands toward the panel superheater, making the connecting pipe 3 The deformation is relatively large, so that the outlet header 2 of the panel superheater and the panel superheater 1 are reversed, and finally the panel superheater 1 is distorted and deformed, which seriously affects the safety and reliability of the boiler operation

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