JPS618896U - Reactor - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案に係る原子炉の一実施例の要部を示す縦
断面図、第２図は本考案の他の実施例の要部を示す縦断
面図、第３図は従来の原子炉の上部を示す縦断面図、第
４図は第３図の部分拡大図である。 １・・・冷却材溜り部、２・・・保護筒、３・・・流れ
孔、４・・・下降管。Fig. 1 is a longitudinal sectional view showing the main parts of one embodiment of the nuclear reactor according to the present invention, Fig. 2 is a longitudinal sectional view showing the main parts of another embodiment of the invention, and Fig. 3 is a longitudinal sectional view showing the main parts of the nuclear reactor according to the present invention. FIG. 4 is a longitudinal sectional view showing the upper part of the furnace, and FIG. 4 is a partially enlarged view of FIG. 3. DESCRIPTION OF SYMBOLS 1... Coolant reservoir part, 2... Protective tube, 3... Flow hole, 4... Descending pipe.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 内部に炉心を支持する原子炉容器、同容器の上部開口を
閉塞する遮蔽プラグ、同遮蔽プラグと前記容器内の冷却
材液面との間に形成されたカバーガス空間、及び前記容
器の上方側部に形成された截頭逆円錐部の内側に設けら
れた冷却材溜り部、及び同冷却材溜り部を画成する保護
筒を有する原子炉において、前記保護筒に穿設された冷
却材の流れ孔から前記冷却材溜り部内に延びる下降管を
設けてなることを特徴とする原子炉。A reactor vessel that supports the reactor core inside, a shielding plug that closes the upper opening of the vessel, a cover gas space formed between the shielding plug and the coolant liquid level in the vessel, and an upper side of the vessel. In a nuclear reactor having a coolant reservoir provided inside a truncated inverted conical portion formed in a section, and a protection tube defining the coolant reservoir, A nuclear reactor comprising a downcomer pipe extending from the flow hole into the coolant reservoir.