JPH0475996U

JPH0475996U -

Info

Publication number: JPH0475996U
Application number: JP1990118649U
Authority: JP
Priority date: 1990-11-13
Filing date: 1990-11-13
Publication date: 1992-07-02

Description

[Brief explanation of the drawing]

第１図〜第４図は本考案の第１実施例の原子炉
格納容器のスプレー管を示し、第１図は設置状態
のスプレー管の一部拡大平面図、第２図は第１図
の−矢視図、第３図は第１図の−拡大断
面図、第４図は第１図の−拡大断面図であり
、また第５図〜第７図は本考案の第２実施例の原
子炉格納容器のスプレー管を示し、第５図は設置
状態のスプレー管の一部拡大平面図、第６図は第
５図の−断面図、第７図は第５図の−矢
視図であり、さらに第８図〜第１１図は本考案の
第３実施例の原子炉格納容器のスプレー管を示し
、第８図は設置状態のスプレー管の一部拡大平面
図、第９図は第８図の部の拡大図、第１０図は
第８図の−拡大断面図、第１１図は第８図の
−拡大断面図であり、さらにまた第１２
図は従来の原子炉格納容器のスプレー管の全体断
面図を示す。図中１は原子炉格納容器、９は環状スプレー管
、１０は冷却水、１１はノズル、１４は固定部分
スプレー管（部分スプレー管）、１５は着脱部分
スプレー管（部分スプレー管）、４１は原子炉圧
力容器、Ｄ_１はトロイダル方向を示す。 1 to 4 show the spray pipe of the reactor containment vessel according to the first embodiment of the present invention, FIG. 1 is a partially enlarged plan view of the spray pipe in the installed state, and FIG. 2 is the same as in FIG. 3 is an enlarged sectional view of FIG. 1, FIG. 4 is an enlarged sectional view of FIG. 1, and FIGS. 5 to 7 are views of the second embodiment of the present invention. The spray pipe of the reactor containment vessel is shown, FIG. 5 is a partially enlarged plan view of the spray pipe in the installed state, FIG. 6 is a cross-sectional view of FIG. 5, and FIG. 7 is a view taken from the direction of the arrow in FIG. Further, FIGS. 8 to 11 show the spray pipe of the reactor containment vessel according to the third embodiment of the present invention, FIG. 8 is a partially enlarged plan view of the spray pipe in the installed state, and FIG. 9 is a partially enlarged plan view of the spray pipe in the installed state. FIG. 10 is an enlarged sectional view of FIG. 8, FIG. 11 is an enlarged sectional view of FIG. 8, and FIG.
The figure shows an overall sectional view of a spray pipe of a conventional reactor containment vessel. In the figure, 1 is the reactor containment vessel, 9 is an annular spray pipe, 10 is cooling water, 11 is a nozzle, 14 is a fixed partial spray pipe (partial spray pipe), 15 is a detachable partial spray pipe (partial spray pipe), and 41 is a Reactor pressure vessel, _D1 indicates toroidal direction.

Claims

[Scope of utility model registration request]

An annular spray pipe was arranged in the reactor containment vessel so as to surround the outer periphery of the reactor pressure vessel, and a plurality of nozzles were attached to the annular spray pipe to spray cooling water at required intervals in the toroidal direction. In the spray pipe of the reactor containment vessel, the annular spray pipe is divided in a toroidal direction to form a plurality of partial spray pipes, and a required partial spray pipe among the partial spray pipes is fixedly supported by the reactor containment vessel. A spray pipe for a nuclear reactor containment vessel, characterized in that the remaining partial spray pipe is a removable partial spray pipe that is located between fixed partial spray pipes and can be attached to and detached from the fixed partial spray pipe.