JPH0314519U

JPH0314519U -

Info

Publication number: JPH0314519U
Application number: JP6975789U
Authority: JP
Priority date: 1989-06-16
Filing date: 1989-06-16
Publication date: 1991-02-14

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す概略断面図、
第２図は本考案の開閉シヤツタ手段と噴出口との
状態を示す図、第３図は開閉シヤツタ手段と噴出
口の変形例を示す図、第４図は従来例を示す概略
断面図、第５図は従来例の噴出口の状態を示す図
、第６図はボイラを示す構成図、第７図は弁の開
度と流量との関係を示す図である。図中、８……過熱器、１０……蒸気タービン、
１１……冷却水供給管、１６……スプレ管、２１
……スプレ本体、２３……噴出口、２４……開閉
シヤツタ手段である。 FIG. 1 is a schematic sectional view showing an embodiment of the present invention;
FIG. 2 is a diagram showing the state of the opening/closing shutter means and the jet nozzle of the present invention, FIG. 3 is a diagram showing a modified example of the opening/closing shutter means and the jet nozzle, and FIG. 4 is a schematic sectional view showing a conventional example. FIG. 5 is a diagram showing the state of a conventional jet outlet, FIG. 6 is a block diagram showing a boiler, and FIG. 7 is a diagram showing the relationship between valve opening and flow rate. In the figure, 8... superheater, 10... steam turbine,
11...Cooling water supply pipe, 16...Spray pipe, 21
. . . spray main body, 23 . . . spout, 24 . . . opening/closing shutter means.

Claims

[Scope of utility model registration request]

A spray main body to which a cooling water supply pipe is connected is attached to the spray pipe installed between the boiler superheater and the steam turbine, and cooling water is sprayed into the spray pipe from the spout of the main body to prevent overheating as it passes through the pipe. A spray device for controlling the temperature of steam, characterized in that the spray main body is provided with a plurality of ejection ports, and the main body is provided with an opening/closing shutter means for controlling the number of the ejection ports.