JPH027412U

JPH027412U -

Info

Publication number: JPH027412U
Application number: JP7829988U
Authority: JP
Priority date: 1988-06-15
Filing date: 1988-06-15
Publication date: 1990-01-18

Description

[Brief explanation of drawings]

第１図はこの考案に係る減温器を示す概略断面
図、第２図は第１図の拡大Ａ―Ａ断面図、第３図
は従来の減温器の水スプレーノズル周辺部の構造
を示す概略断面図、第４図ａは第３図に示した減
温器の一部を示す斜視図、第４図ｂは第３図の拡
大Ｃ―Ｃ断面図、第５図は第３図に示した減温器
の水スプレーノズルからの水の噴霧状態を示す図
、第６図は保護筒の高温蒸気の流れ方向の温度変
化を示すグラフ、第７図は第３図に示した減温器
の保護筒の支持状態を示す図、第８図は保護筒の
高温蒸気の流れ方向の応力変化を示すグラフであ
る。１……蒸気母管、２……保護筒、３……水スプ
レーノズル、５……吊りバンド。 Figure 1 is a schematic sectional view showing the desuperheater according to this invention, Figure 2 is an enlarged cross-sectional view taken along line AA in Figure 1, and Figure 3 shows the structure of the water spray nozzle surrounding area of a conventional desuperheater. FIG. 4a is a perspective view of a part of the attemperator shown in FIG. 3, FIG. 4b is an enlarged cross-sectional view taken along line CC in FIG. 3, and FIG. Figure 6 is a graph showing the state of water spray from the water spray nozzle of the desuperheater shown in Figure 6. Figure 6 is a graph showing the temperature change in the flow direction of high temperature steam in the protective tube. FIG. 8, which is a diagram showing the support state of the protective tube of the warmer, is a graph showing stress changes in the protective tube in the flow direction of high-temperature steam. 1...Steam main pipe, 2...Protection tube, 3...Water spray nozzle, 5...Hanging band.

Claims

[Scope of utility model registration request]

A steam main pipe in which high-temperature steam flows, a protection tube provided in the steam main pipe at a distance from the steam main pipe, and a low-temperature fluid nozzle provided in the main pipe and spouting low-temperature fluid. What is claimed is: 1. A desuperheater comprising: a protective tube movably supported at least in the flow direction of the high-temperature steam with respect to the steam main pipe;