477987 A7 B7 五、發明説明（1 ) 技術領域 (請先閱讀背面之注意事項再填寫本頁) 本發明係關於原子爐建物內機器之搬出方法，特別是 關於由核電廠之原子爐建物搬出被活化的機器之搬出方法 背景技術 關於由原子爐建物搬出被活化的機器之原子爐容器（ 以下，稱爲R p V )之方法之第1習知技術’有被記載於 特開平6 - 2 3 0 1 8 8號公報者。此方法係：將 RPV吊上設置於原子爐建物之屋頂上之空氣閉鎖室內， 在維持空氣閉鎖室內爲負壓之狀態下，將空氣閉鎖室與 R P V —體移動之方法。 經濟部智慧財產局員工消費合作社印製 關於R P V之搬出之第2習知技術，有被記載於特開 平8 — 6 2 3 6 8號公報者。此方法爲：設置鄰接原子爐 建物，覆蓋其之屋頂之開口部之潔淨室，將爐內構造物、 控制棒驅動機構外殼（以下，稱爲C R D外殼）以及 R P V當成一體，在此潔淨室內移動搬出之方法。在同一 公報也記載將爐內構造物、C R D外殻、R P V以及r屏 蔽當成一體，在潔淨室內移動搬出之方法。 關於R P V之搬出之第3習知技術有被記載於特開平 9 一 1 4 5 8 8 2號公報者。此方法爲：將爐內構造物以 及C RD外殼與R P V —齊往上吊，在其外表面安裝圓筒 狀之遮蔽體，以此遮蔽體密封大型區塊，由原子爐建物搬 出之方法。 本紙張尺度適用中.國國家標準（CNS ) A4規格（210X297公釐） "" " 477987 A7 B7 五、發明説明（2 ) (請先閲讀背面之注意事項再填寫本頁) 但是，在上述第1〜第3之習知技術中，雖然記載了 I哥於R P V之搬出方法，但是並未明記被接續於r p V之 二，配..管等之構造物之里斷順序或方培、切斷後之搬出方法或 堡皇方逸—等。 發明之揭示 本發明之目的在於提供：可以縮短位於機器之外側， #隨機器之搬出被拆除之構造物搬出所需要之作業時間之 核電廠之機器搬出方法。 爲了達成上述目的的本發明之特徵爲：拆除位於被設 v置在核電廠之機器之生歷之前述核電廠的構造物，將被以 輻射線遮蔽體覆蓋，被拆除之前述構造物收容於內部空間 .之前述機器搬出於前述機器被配置之建物之外。’ 經濟部智慧財產局員工消費合作社印製 依據本發明，在被搬出於建物外之機器內收容爲了拆 除此機器由核電廠被拆除之構造物，可以將該機器與被拆 除之構造物建物搬出。因此，伴隨機器之拆除而被 拆卸之上述構造物之搬出所需要之作業時間可以顯著縮短 。又，被拆除之構造物被收容在機器內而被搬出之故，可 以削減使用於此構造物之搬出之容器數。 又/爲了達成上述目的之本發明之其它之實施形態爲 :拆除位於被設置在核電廠之機器之外側之前述核電廠之 構造物，將被拆除之前述構造物收容於前述機器之內部’ 拆除前述機器，在以輻射線遮蔽體覆蓋之狀態下’將前述 機器搬出於此機器被配置之建物之外。 i紙張尺度適用中國國家標準（CNS ) A4規格（210X297公董) 7^ 477987 A7 B7 _____ 五、發明説明（3 ) (請先閱讀背面之注意事項再填寫本頁) 又，爲了達成上述目的之本發明之其它之實施形態爲 :將位於被設置在核電廠之機器之外側，由前述核電廠被 拆除之構造物收容於前述機器之內部空間而被拆除’將在 以輻射線遮蔽體覆蓋之內部收容前述構造物之前述機器搬 出於此機器被配置之建物之外。 又，爲了達成上述目的之本發明之其它之實施形態爲 :在原子爐容器內，爐水滿至比配管被接續於原子爐容器 之地方還高爲止之狀態，於前述原子爐容器與前述配管之 接續部上栓，將前述配管在前述原子爐容器之外側切斷， 於該切斷部安裝封閉板。 依據此，可以藉由爐水進行遮蔽之故，能夠減低進行 配管切斷之作業員之輻射照射量。 實施發明用之最好形態 經濟部智慧財產局員工消費合作社印製 R P V係高度約2 5 m、直徑約6 m、重量約 1000噸之大型機器。在RPV上安裝有主蒸汽出口噴 嘴或給水噴嘴等大約5 0〜6 0個之噴嘴，於這些噴嘴連 接有配管。於R P V之搬出作業中，必須切斷去除被連接 於噴嘴之配管或周圍之鋼構造物。配管之切斷去除作業， 由於R P V被活化之故，成爲在高輻射線域之作業。因此 ，在該切斷作業時，有必要講求遮蔽輻射線之某種方法。 又，在R P V除了配管之外，也連接有燃料交換伸縮 管或隔壁板等之構造物。爲了搬出R P V，也必須切斷去 除這些構造物。這些構造物之總重量也約1 〇 〇噸。在這 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） ~' 477987 A7 B7 五、發明説明（4 ) (請先閱讀背面之注意事項再填寫本頁) 些構造物搬出之際，包含輻射線物質之故，必須收容在具 有輻射線遮蔽能力之容器（以下’稱爲容器（cask ))。 於收容於容器上，必須配合容器之大小切斷構造物，該作 業量變成很巨大。容器具有輻射線遮蔽能力之故，價格很 高。因此，爲了收容這些構造物，有需要很多高價之容器 之問題。 又，在收容構造物之容器之處理上，除了容器之表面 污染檢查之外，必須每一容器做輸送、保管，其之作業量 變得很龐大。因此，具有工期變長之問題。 又，於加壓水式原子爐中，不單是原子爐容器，在搬 出蒸汽產生裝置之際，也產生同樣之問題。 以下，說明達成目的用之實施例。 (實施例1 ) 經濟部智慧財產局員工消費合作社印製 說明本發明之實施例1之核電廠之機器搬出方法。本 實施例係在沸水型原子爐（以下，稱爲B W R )之R P v 之搬出適用本發明之實施例。在本實施例中，說明：一邊 使爐水位降低，一邊將被連接於R P V之噴嘴之配管由 R P V之上部依序進行切斷，拆除上述格子板，在爐內縱 置於隔板上部凸緣部，將由R P V與上部格子板之間隙搬 出於原子爐建物外之廢棄物搬入隔板內，之後，將上部格 子板於隔板上側回復爲水平狀態，於上部格子板上堆積其 它之廢棄物，將R P V與廢棄物一齊地由原子爐建物搬出 ，於保管庫加以保管之方法。 本紙張尺度適用中.國國家標準（CNS ) A4規格（210X297公董） 477987 A7 B7 五、發明説明（5 ) 第2圖係本實施例中，適用第1圖（a )之搬出順序 之B W R - 4型原子爐建物之槪略縱剖面圖。原子爐建物 3 1係R P V 1被配置於內部之建物。爐內構造物2係位 於RPV1內之構造物。於原子爐建物3 1中，在運轉床 80之下方有PCV16，RPV1被收容在PCV 1 6。R P V 1被設置於被設置在P C V 1 6之內部之 R P V基座1 9之上，遮蔽由R P V 1來之輻射線之原子 爐遮蔽壁（以下，稱爲RSW) 17被設置於RPV1之 外側。在P C V 1 6之上側設置有：在更換燃料集合體時 或取出位於R P V 1之內部之構造物時，裝滿水用之原子 爐井3 2、保管用過燃料元件之使用完畢燃料儲池3 3、 暫時放置在定期檢查等之際取出之蒸汽乾燥器等之爐內構 造物之機器儲池8 1。在使用完畢燃料儲池3 3內設置有 保管用過燃料元件之燃料架3 3 a。在R P V 1之頂部設 置原子爐壓力容器蓋（以下，稱爲RPV蓋）3 7。 P C V 1 6之內部如第3圖所示般地，R P V 1被配 經濟部智慧財產局員工消費合作社印製 基生 V產 P 部 R 內 於1 定V 固 P 被R 8 在 2 將 絲： 螺置 礎設 基壁 由側 藉之 IX IX V V p P R R ，在 央。 中 8 於 1 置座 入嘴 導噴 內灑 r-H 噴 V 心 P 爐 R 之 於內 、 IX 9 V 嘴 P 噴 R 汽卻 蒸冷 主'、 之 ο 機1 電嘴 發噴 於水 導給 引之 汽水 蒸流 之回 以測 2 量1-Η 、」 嘴爐 噴之 口測 入量 環種 循各 再之 之內 環爐 循行 水進 爐.、 之 3 內 τ~_ 1 嘴 V 噴 ρ Ρ R出 使環 、循 1 再 1 及 爐 之 力 壓 之爐 內之 爐內 測 1 量 V 、 P 4 R 1 除 嘴去 噴 、 R 之 用 嘴再 噴 ， 置 裝 測 量 壓 差 心 5 嘴 噴 水 二一广 V Ρ 7 尺 I張 紙 一本 準 標 家 國 國 中 用 適 Μ \1/ S Ν 釐祕 9 2 477987 經濟部智慧財產局員工消費合作社印製 A7 ___— B7 _五、發明説明（6 ) R P V 1之外圍設置保溫材料1 9 2。於P C V 1 6內部 中，在其上部設置隔間P C V 1 6內之燃料更換伸縮管 1 5與隔壁板1 9。在RPV基座1 8內設置有：導引控 制棒之控制棒機殼（以下，稱爲C R D機殼）2 3、支持 C.RD機殼2 3之CRD機殻支撐樑（以下，稱爲CRD 樑）2 2、C R D機殻支撐區塊（以下，稱爲C R D區塊 )2 5以及支持爐內中子監視器（以下，稱爲I C Μ )之 I CM機殼24。又，RSW1 7藉由基礎螺絲29被固 定於R P V基座1 8。在R S W 1 7之上側設置：P C V 16之耐震用支持構件之PCV安定器3 0，以及RPV 1之耐震用支撐之RPV安定器30a。 R P V 1之內部如第4圖所示般地，爐心隔板（以下 ，稱爲隔板）5被配置於中央，隔板5藉由隔板支撐圓筒 8 2被支持。隔板支撐圓筒8 2係藉由障板（baffle ) 8 4 以及隔板支撐腳8 3而被支持於R P V 1之底部。在隔板 5之內部，於其上部設置上部爐心支持板之上部格子板7 ，於其下部設置下部爐心支持板之爐心支持板6。進而’ 在隔板5內側設置：控制棒8 5、控制棒導引管8 6以及 燃料集合體8 7。在隔板5之上方設置：蒸汽乾燥器3、 汽水分離器兼隔板頭4、導引桿88、給水分佈器與配管 8 9、爐心噴灑分佈器與配管9 0。汽水分離器兼隔板頭 4與隔板5透過被設置於隔板上部之肋（未圖示出）藉由 螺絲被結合著。在隔板5之下方設置I C Μ機殼2 4、爐 內（m core )安定器2 7等之機器。RPV頭37藉由被 本紙張尺度適用中.國國家標準（CNS ) A4規格（210X297公釐） _ 9 _ (請先閲讀背面之注意事項再填寫本頁) 477987 A7 B7 立、發明説明（7 ) (請先閱讀背面之注意事項再填寫本頁) 安裝於凸緣37b之螺栓37a被固定於RPV1。在R P V 1之底部設置：R P V裙部1 b、收容控制棒驅動機 構（以下，稱爲CRD) 20之CRD機殻23、收容I CM2 1 之 I CM機殻 24。 如此，於R P V 1設置各種之爐內外附帶機器。爐內 外附帶機器被分成被設置在R p V 1之內部之爐內構造物 2，以及爐內構造物以外之構造物。爐內構造物2係由： 蒸汽乾燥器3、汽水分離器兼隔板頭4、隔板5、爐心支 持板6、上部格子板7、噴射泵8等形成。 爐內構造物以外之構造物’在R P V 1之側壁（筒體 部）設置有··主蒸汽噴嘴9、給水噴嘴1 0、爐心噴灑噴 嘴1 1、再循環入口噴嘴1 2、再循環出口噴嘴1 3、爐 心量測噴嘴1 4、爐心差壓量測裝置噴嘴5 6、R P V排 水噴嘴5 7、C R D機殻2 3以及I C Μ機殼2 4。在這 些之各噴嘴被連接各別之系統配管。 在本實施例中，對於具有此種構成之核電廠，進行 R Ρ V之搬出。 經濟部智慧財產局員工消費合作社印製 R Ρ V之搬出作業係藉由第1圖（a )所示流程進行 〇 以下，說明本實施例之R Ρ v搬出方法。開始，在步 驟s 1中，發.電機被解開，開始核電廠之定期檢查。在步 驟S 2中，進行原子爐之開放作業。此時，爐水6 7之爐 水水位6 7 a爲原子爐井之滿水位之位置。在原子爐開放 作業中，實施P C V 1 6之拆除作業、拆除R Ρ V頭3 7 -10- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 477987 A7 B7 五、發明説明（8 ) (請先閱讀背面之注意事項再填寫本頁) 之R P V頭拆除作業、拆除蒸汽乾燥器3之蒸汽乾燥器拆 除作業、拆除汽水分離器兼隔板頭4之隔板頭拆除作業。 將拆除之蒸汽乾燥器3以及汽水分離器兼隔板頭4移動於 機器儲池8 1。藉由拆除蒸汽乾燥器3以及汽水分離器兼 隔板頭4，R P V 1內之上部格子板7之上側變成大空間 。原子爐開放作業係拆除爐心內之燃料集合體8 7所必要 之關鍵作業。在本實施例中，拆除之蒸汽乾燥器3以及汽 水分離器兼隔板頭4設爲不更換而再使用。又，必要時， 不加以再利用，更換爲新的亦可。 經濟部智慧財產局員工消費合作社印製 接著，在步驟S 3中，進行R P V 1內之全部的燃料 集合體87之取出作業（第5圖（a))。將被裝置於爐 心之燃料集合體8 7之全部由爐心內取出，移動於被設置 在使用完畢燃料儲池3 3之中的燃料架3 3 a。此時，爐 水水位6 7 a爲使原子爐井6爲滿水位之位置。接著，在 步驟S 4中，進行控制棒8 5以及控制棒導引管8 6之搬 出。將全部之控制棒8 5、控制棒導引管8 6移動於被設 置在使用完畢燃料儲池3 3之中之燃料架3 3 a。在本實 施例中，設拆除之控制棒8 5以及控制棒導引管8 6不更 換而再度使用。又，必要時，也可以不再利用，而更換爲 新者。在步驟S 3以及S 4中，爐心隔板5內之全部的燃 料集合體8 7、控制棒8 5以及控制棒導引管8 6被取出 之故，在爐心隔板5內部可以有大的空間。在步驟S 1至 步驟S. 4爲止之工程係與通常之定期檢查所進行者相同。 接著，在步驟S 5中，將上部格子板7由爐心隔板5 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -11 - 477987 A7 B7 五、發明説明（9 ) (請先閱讀背面之注意事項再填寫本頁) 頂部拆除，進行縱置於爐心隔板5上部之作業（第5圖（ b ))。上部格子板7由爐心隔板5頂部被拆除，被縱置 於爐心隔板5上部（第5圖（c ))。此時之爐水水位6 7 a由於上部格子板7之輻射線量高之故，設爲使原子爐 井.3 2爲滿水位之位置。縱置之上部格子板7比爐心隔板 5之直徑大之故，掛於爐心隔板5之上部凸緣，不會落於 爐心隔板5內。被縱置之上部格子板7以纜線等固定。藉 由此，可以防止縱置之上部格子板7之翻倒。又，使上部 格子板7置入於R P V 1之內部之情形下，在R p V 1之 內側可以確保將搬出原子爐建物外之廢棄物搬入上部格子 板7之下側用之通路。又，爲將上部格子板7置入R P V 1之內部之狀態之故，與搬出於R P V 1外部之情形相比 ，可以使往周圍之輻射線照射量變小。 接著，並行實施步驟S 6之R P V周圍之解體作業， 以及步驟S 2 0之RPV基座1 8內之解體作業。又，在 本實施例中，雖然並行實施步驟S 6以及步驟S 2 0，但 是在步驟S 6之後實施步驟S 2 〇，或反之進行亦可。 經濟部智慧財產局員工消費合作社印製 說明步驟S 6。在本步驟中，全部拆除R P V 1與 R P V 1之外側之構造物之接續。在本實施例中，拆除第 5圖（a )之點線包圍部份之連接。步驟S 6之詳細爲步 驟S 7〜步驟S 1 2。以下，由步驟S 7起依序說明。首 先，在步驟S 7中，如第6圖所示般地，使爐水水位6 7 a降低至R P V凸緣1 c爲止。接著，拆除隔壁板1 9以 及燃料更換伸縮管1 5。將拆除之隔壁板1 9以及燃料更 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） .^ 477987 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（10 ) 換伸縮管1 5由縱置之上部格子板7與R p v 1之間隙載 置於隔板5內之爐心支持板6之上。接著’在步驟S 8中 ，拆除P C V安定器3 0，由縱置之上部格子板7與 R P V 1之間隙載置於隔板5內之爐心支持板6之上。藉 由拆除P C V安定器3 0，可以將位於R P v 1與P C V 1 6之間，而且在P C V安定器3 0之下側之構造物經過 原子爐井3 2，移動於RPV1之內部之通路。 接著，說明步驟S 1 〇。步驟S 1 0之詳細係如第1 圖（b )所示般地，以步驟S 1 0 1〜S 1 0 8所代表。 首先，在步驟S 1 0 1中，如第7圖所示般地，使爐水水 位6 7 a保持在R P V凸緣1 c上部，由爐內插入封水塞 5 1 ，關閉主蒸汽噴嘴9。接著，將被連接於主蒸汽噴嘴 9之主蒸汽配管9 a由與主蒸汽噴嘴9之連接部以及主蒸 汽配管9 a向下之部份切斷。切斷後，由R P V 1之外側 將噴嘴密封板5 2安裝於主蒸汽噴嘴9 °接著，將其之切 斷片由縱置之上部格子板7與R P V 1之間隙載置於隔板 5內之爐心支持板6之上。此處，也可以利用：在主蒸汽 配管9 a之切斷之際，將爐水水位6 7 a降低至主蒸汽噴 嘴9開口部之下，切斷主蒸汽配管9 a ’安裝噴嘴密封板 5 2後，將爐水水位再度回復至R P V凸緣1 c上部之方 法。 接著，在步驟s 1 0 2中，切斷被連接於給水噴嘴 1 〇以及爐心噴灑噴嘴1 1之給水配管1 〇 a以及爐心噴 灑配管1 1 a ，移動於R P V 1內。給水分佈器1 0 b或 請 先 閲 讀 背 Sj 之 注 意 事 項 再 寫 本 頁 訂 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） -13 - 477987 A7 B7 _ 五、發明説明（11 ) 壚內噴灑配管1 1 b被連接於在本步驟中被切斷之給水噴 嘴1 0以及爐心噴灑噴嘴1 1之故，無法如在步驟 (請先閲讀背面之注意事項再填寫本頁) 5 1 〇 1進行般地’插入封水塞5 1 °因此’將爐水水位 6 7 a降低至給水噴嘴1 〇之開口部以及爐心噴灑噴嘴 經濟部智慧財產局員工消費合作社印製 1. 1之開口部，切斷R P V 1之外側之給水配管1 0 a以 及爐心噴灑配管1 1 a後，將噴嘴密封板5 2安裝於給水 噴嘴1 0以及爐心噴灑噴嘴1 1。第8圖（a )係顯示由 給水噴嘴1 0切斷給水配管1 〇 a之狀態。將爐心降低至 給水噴嘴1 〇之開口部下，將給水配管1 〇 a由與給水噴 嘴1 0之接合部以及給水配管1 〇 a向下之部份切斷。切 斷後，由R P V 1之外側將噴嘴密封板5 2安裝於給水噴 嘴1 0。接著，將該切斷片由縱置之上部格子板7與 R P V 1之間隙載置於隔板5內之爐心支持板6之上。爐 心噴灑噴嘴1 1、爐心噴灑配管1 1 a以及1 1 b也進行 同樣之切斷。最後，使爐水水位6 7 a回復到R p v凸緣 1 c之位置。此處，在給水配管1 〇 a以及爐心噴灑配管 1 1 a之切斷之際，如第8圖（b )之就給水噴嘴1 0、 給水配管1 0 a以及給水分佈器1 〇 b所示般地’使爐水 水位6 7 a保持在步驟S 1 0 1之位置，由R P V內側切 斷被連接於給水噴嘴1 〇之給水分佈器1 0 b或被連接於 爐心噴灑噴嘴1 1之爐心噴灑配管1 1 b，由R p V內側 於各噴嘴插入封水塞5 1 ，之後，以與步驟S 1 〇 1同樣 之順序，由外側切斷給水配管1 〇 a以及爐心噴灑配管 1 1 a ，安裝噴嘴密封板5 2亦可。在此情形，可以不降 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） .14Ί — — 477987 A7 B7 五、發明説明（12 ) 低爐水水位而安裝噴嘴密封板5 2之故，藉由爐水之遮蔽 ，可以更降低對作業員之輻射線量。 (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 又，於步驟S 1 〇 2中，也可以利用以下所述之順序 。首先，如第8圖（a )所示般地，將爐水水位6 7 a降 低至給水噴嘴1 0之開口部以及爐心噴灑噴嘴1 1之開口 部，接著，由R P V內側切斷被連接於給水噴嘴1 〇之給 水分佈器1 0 b或被連接於爐心噴灑噴嘴1 1之爐內噴灑 配管1 1 b ，由R P V內側於各噴嘴插入封水塞5 1 °接 著，使爐水水位6 7 a上升至步驟S 1 0 1之位置爲止。 接著，將給水配管1 0 a由與給水噴嘴1 0之接合部以及 給水配管1 0 a向下之部份切斷，同樣地，關於爐心噴灑 配管1 1 a也切斷。切斷後，由R P V 1之外部將噴嘴密 封板5 2安裝於給水噴嘴1 0以及爐心噴灑噴嘴1 1 °接 著，將該切斷片由縱置之上部格子板7與R P V 1之間隙 載置於隔板5內之爐心支持板6之上。在利用此順序之情 形，可以在爐水之外切斷給水分佈器以及爐心噴灑分佈器 之故，可以使切斷容易進行。又，在切斷給水配管1 〇 a 以及爐心噴灑配管1 1 a之際，可以藉由爐水遮蔽輻射線 之故，能夠降低作業員之暴露量。 接著，說明步驟s 1 〇 3。在本步驟中，如第9圖所 示般地，將成.爲縱置之上部格子板7回復縱置以前之水平 。爐水水位6 7 a爲R P V凸緣1 c之位置。在本實施例 中，於步驟S 1 0 2終了後，雖將縱置之上部格子板7回 復爲水平，但是於步驟S 1 〇 1或步驟S 1 0 2中，如搬 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 477987 A7 —__B7 _ 五、發明説明（13 ) 入其以上之構造物，由於搬入隔板內之構造物而使上部格 子板7回復爲水平之作業產生障礙之情形，在該時間點實 施步驟S 1 〇 3亦可。又，在步驟S 5中，不使上部格子 板7縱置，而使上部格子板7移動於機器儲池，搬入構造 物後，在步驟S 1 〇 3中，將上部格子板回復於隔板上部 亦可。步驟S 1 〇 3實施後，將搬入R P V 1內之構造物 載置於上部格子板7之上。在此情形，不使以纜線等固定 上部格子板之故，可以簡便地進行作業。 接著，說明步驟S 1 〇 4。於本步驟中，切斷被連接 於爐心量測噴嘴1 4之爐心量測配管1 4 a，移動於 R P V 1內。爐心量測噴嘴1 4被配置於原子爐運轉中之 燃料附近之故，爐心量測噴嘴1 4附近輻射線量高。因此 ’將爐水6 7降低至爐心量測噴嘴1 4下側爲止後，如打 開R S W塞（門）1 7 a ，切斷R P V 1之外側之爐心量 測配管1 4 a ，有切斷時作業員之曝露量超過規定値之可 能性。 經濟部智慧財產局員工消費合作社印製 因此，利用以下之方法。首先，如第2 2圖（a )所 示般地，使爐水水位6 7 a降低至比爐內量測裝置噴嘴 1 4低。接著，在設定於118贾塞178之外側之切斷位 置9 5切斷爐內量測裝置配管1 4 a。接著，如第2 2圖 (b )所示般地，由切斷之爐心量測配管1 4 a之開口部 插入封水塞5 1 ，密封爐內量測裝置噴嘴1 4，之後，如 第2 2.圖（c )所示般地，使爐水水位6 7 a提升至隔板 5之上側爲止。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） . 477987 A7 B7 五、發明説明（14 ) (請先閱讀背面之注意事項再填寫本頁) 接著，打開R s w塞1 7 a ’將爐心量測配管1 4 a 由與爐內量測裝置噴嘴1 4之連接部切斷。接著，將噴嘴 密封板5 2藉由熔接安裝於爐內量測裝置噴嘴1 4之外側 。噴嘴密封板5 2之安裝不單是熔接，也可以使用螺絲鎖 緊。接著，密封R S W塞1 7 a。切斷終了後，將切斷片 搬入RPV 1內，載置於上部格子板5之上。藉由此，可 以一邊抑制作業員之曝露量在規定値以下，一邊切斷由 RP V 1貫穿R SW1 7突出之部份之爐內量測裝置噴嘴 1 4。又，爐心量測配管1 4 a之切斷位置不單是爐心量 測配管1 4 a與爐內量測裝置噴嘴1 4之連接部，也可以 是安裝封水塞51之際之由RPV1之突起部在使RPV 1移動於上方之際，成爲不與R S W 1 7之內側干涉之突 起之位置。 接著，說明步驟S 1 〇 5。在步驟S 1 〇 5中，使爐 水水位6 7 a維持在步驟S 1 0 4之狀態下，於噴射泵8 安裝封水塞5 1 ，切斷再循環系入口配管1 2 a ，搬入爐 經濟部智慧財產局員工消費合作社印製 內。如第1 0圖所示般地，再循環系入口噴嘴1 2在爐內 側被連接於噴射泵8。首先，拆除噴射泵8之一部份之入 口攪拌部8 a ，插入封水塞5 1。接著，由R P V 1之外 側將再循環系入口配管1 2 a由與再循環系入口噴嘴1 2 之連接部以及再循環系入口配管1 2 a向下之部份切斷。 切斷後’由R P V 1之外側將噴嘴密封板5 2安裝於再循 環系入.□噴嘴1 2。接著，將該切斷片載置於上部格子板 7之±。藉由利用此順序，可以藉由爐水遮蔽輻射線之故 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） _ 17二 一 477987 A7 B7 五、發明説明（15 ) (請先閱讀背面之注意事項再填寫本頁) ，可以降低作業員之曝露量。此處，在再循環系入口配管 1 2 a之切斷之際，也可以利用使爐水水位6 7 a降低至 再循環系入口噴嘴1 2開口部之下，切斷再循環系入口配 管1 2 a ，安裝噴嘴密封板5 2後，將爐水水位再度回復 爲R P V凸緣1 c上部之方法。在此情形，入口攪拌部8 a之拆除成爲不必要之故，可以不進行入口攪拌部8 a之 拆除作業。 接著，說明步驟S 1 0 6。在步驟S 1 〇 6中，使爐 水水位6 7 a維持在步驟S 1 0 4之狀態下，切斷再循環 系出口配管13a ，搬入爐內。首先，如第11圖所示般 地，由爐內於再循環出口噴嘴1 3插入封水塞5 1。接著 ，由R P V 1之外側將再循環系出口配管1 3 a由與再循 環系出口噴嘴1 3之連接部以及再循環系出口配管1 3 a 向下之部份切斷。切斷後，由R P V 1之外側將噴嘴密封 板5 2安裝於再循環系出口噴嘴1 3。接著，將該切斷片 載置於上部格子板7之上。如依據此順序，藉由爐水可以 遮蔽輻射線之故，可以降低作業員之曝露量。 經濟部智慧財產局員工消費合作社印製 接著，說明步驟S 1 0 7。在步驟S 1 0 7中，切斷 分別被連接於被配置在比再循環出口系噴嘴1 3還下側之 爐心差壓量測裝置噴嘴5 6等被設置於R P V之全部之噴 嘴之配管，載置於上部格子板7之上。切斷之順序爲：首 先，使爐水水位6 7 a降低至與各配管之R P V 1之連接 地方還低處，進行噴嘴之切斷。接著，進行切斷後’安裝 噴嘴密封板5 2，將切斷片載置於上部格子板7之上°在 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -18- 477987 A7 B7 五、發明説明（16 ) (請先閱讀背面之注意事項再填寫本頁) 步驟S 1 〇 7中，比進行切斷之再循環系出口噴嘴1 3還 低之下側係由爐心區域分開，輻射線量也比較低之故’即 使不將爐水6 7當成遮蔽使用，伴隨被連接於爐心差壓量 測裝置噴嘴5 6等之爐心差壓量測裝置配管5 6 a等之切 斷、搬出，也不會大量地被曝露，可以進行作業。 接著，說明步驟S 1 0 8。在步驟S 1 0 8中，由 RPV排水噴嘴5 7完全去除RPV 1內之爐水6 7後， •切斷連接於R P V排水噴嘴5 7之R P V排水配管5 7 a ，安裝噴嘴密封板5 2。 被連接於R P V排水噴嘴5 7之R P V排水配管5 7 a係被配置於C R D機殻2 3之間之故’與C R D機殼 2 3 —齊搬出。因此，R P V排水配管5 7 a之切斷設爲 在與RPV 1 —體搬出時，不與RPV基座7 0千涉之 R P V基座7 0內之位置，在切斷部安裝噴嘴密封板5 2 。接著，將切斷片載置於上部格子板7之上。以下，步驟 S 1〇終了。 經濟部智慧財產局員工消費合作社印製 接著，說明步驟s 1 1。在步驟S 1 1中，將R p V 頭3 7藉由天花板吊車載於RPV凸緣之上’藉由RPV 螺栓3 7 a，安裝於R P V 1。 接著，說明步驟S 1 2。在步驟S 1 2中，拆除 RPV1之耐震用支撐之RPV安定器3 0a，切斷 RPV1 與 RSW17。 接著，說明步驟S 2 0。在步驟S 2 0中，解體 RPV基座1 8內之構造物，分離RPV 1與RPv基座 本紙張尺度適用中.國國家標準（CNS ) A4規格（210X297公釐） -19 - 477987 A7 __B7 _ 五、發明説明（17 ) 1 8之連接。如第1圖（a )所示般地，細分爲步驟 S21 〜S25。 (請先閲讀背面之注意事項再填寫本頁) 首先，在步驟S 2 1中，拆除C R D區塊2 5。鬆弛 固定C R D區塊之螺帽，拆除C R D區塊。拆除後，在 RPV基座設置保管區域（未圖示出），保管CRD區塊 〇 接著，在步驟S 2 2中，拆除被連接於C R D 2 0以 及I C Μ 2 1之纜線。有關I C Μ係解除纜線端子連接器 ，拆除纜線。有關C R D係解除控制棒與C R D之連接， 拆除Ρ I P ( C R D之位置檢測裝置）之連接器，由 C R D拔出纜線以及Ρ I Ρ。拆除後，將C R D區塊以及 纜線類、Ρ I Ρ移動於設置在R Ρ V基座外之保管區域（ .未圖示出）。 經濟部智慧財產局員工消費合作社印製 接著，在步驟S 2 3中，進行C R D 2 0之拆除。使 用設置在RPV基座之CRD更換機（未圖示出），鬆弛 • C R D下部之螺絲，拆除C R D。拆除後，在R Ρ V基座 設置保管區域（未圖示出），保管C R D。又，由步驟 S 2 1至步驟s 2 3之作業係通常之定期檢查時所進行之 作業。 接著，在步驟S 2 4中，進行C R D之插入、拔除用 配管2 6之切斷。將C R D之插入、拔除用配管於R Ρ V 基座內壁之附近切斷。切斷時使用機械切斷。接著，在步 驟S 2. 5中，拆除C R D樑2 2。切斷C R D樑2 2後， 拆除C R D樑2 2。切斷時使用機械切斷。又，於本實施 本紙張尺度適用中國家標準（CNS ) A4規格（2i〇x297公釐） — 477987 A7 B7 五、發明説明（18 ) 例之步驟S 2 4以及步驟S 2 5中，雖然使用機械切斷， 但是，也可以使用瓦斯切斷等其它之切斷方法。 (請先閱讀背面之注意事項再填寫本頁) 在本實施例中，藉由並行進行步驟S 6與步驟S 2 0 ，可以縮短作業時間。一，進行步驟S 6後，實施步驟 S.2 0，或反之實施亦可。 接著，在步驟S 3 0中，進行起重機6 5之裝置，接 著，在步驟S 4 0中，進行於原子爐建物3 1之屋頂搬出 R P V 1用之搬出用開口部（以下，單單稱爲開口部） 經濟部智慧財產局員工消費合作社印製 3 1 a之設定。如第1 9圖所示般地，在原子爐建物3 1 之外裝置起重機6 5，在原子爐建物3 1之屋頂上設定開 口部3 1 a。又，在暫定開口部3 1 a設置可以關閉自如 之開關裝置6 4。暫定開口部3 1 a設置於R P V 1之上 方，其之大小係考慮：搬入之R P V 1以及設置於R P V 1之遮蔽體之大小、遮蔽體搬出用之吊具之大小、遮蔽體 搬入時以及遮蔽體搬出時之搖動等而決定。如此，藉由檢 討通過暫定開口部3 1 a之物體之搖動，決定暫定開口部 之大小，可以避免通過開口部3 1 a之物體接觸於原子爐 建物。又，藉由開關自如之開關裝置之設置，可以進行雨 水或作業中之原子爐建物3 1內之負壓管理之對策。又， 步驟S . 3 0之起重機6 5之裝置以及步驟S 4 0之開口部 3 1 a之設定.，只要在步驟S 5 0之遮蔽體安裝之前，在 哪一階段進行皆可。 接著，在步驟S 5 〇中，將圓筒狀之遮蔽體6 0藉由 起重機6 5搬入原子爐建物3 1內，如第1 3圖所示般地 •21 - 本紙張尺度適用中.國國家標準（CNS ) A4規格（210X297公釐） 477987 A7 ____ B7___ 五、發明説明（19 ) (請先閲讀背面之注意事項再填寫本頁) ，暫置於R SW1 7之上面。接著，在RP V 1安裝護板 (strongback )(吊具）6 3。接著，如第2 0圖所不般 地，吊上RPV 1，於被安裝於遮蔽體6 0上部之擋板 6 1嵌合RPV1之安定器拖架3 0b。藉由此，在 R . P V 1之通常運轉時，於裝置燃料之區域之爐心區域2 a可以裝置遮蔽體6 0。接著，在步驟S 6 0中，安裝保 養板6 0 a。如第2 1圖所不般地’藉由起重機6 5^—‘齊 吊起RPV1與遮蔽體6 0，以保養板6 0 a覆蓋比遮蔽 體還上側之R P V頭3 7以及下側之C R D機殼2 3等’ 以密封帶（未圖示出）密封固定保養板6 0 a之端部。保 養板6 0 a使用乙烯基氯板等。藉由此，可以以遮蔽體 6 0以及保養板6 0 a覆蓋、遮蔽封入搬出於原子爐建物 外之廢棄物之RPV1。 經濟部智慧財產局員工消費合作社印製 接著，在步驟S 6 1中，進行RPV 1之吊起搬出。 如第1 4圖所示般地，藉由起重機6 5，吊起RPV 1以 及遮蔽體6 0，由開口部3 1 a搬出原子爐建物3 1之外 。搬出前，量測遮蔽體6 〇之表面污染度，實施污染檢查 。搬出後，關閉開關裝置6 4。 接著，在步驟S 6 2中，進行RPV 1以及遮蔽體 6 0之保管庫收容。如第1 5圖所示般地，在原子爐建物 3 1之附近配置縱形地下式之保管庫6 6，在吊起由原子 爐建物3 1搬出之R P V 1以及遮蔽體6 0之狀態下，將 起重機6 5之面向改變爲保管庫6 6之方向，搬入保管庫 6 6。搬入後，於保管庫6 6上蓋，使保管庫6 6成爲密 -22- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 477987 A7 B7 五、發明説明（20 ) (請先閲讀背面之注意事項再填寫本頁) 閉狀態。又，也可以將R P V 1以及遮蔽體6 0載置於拖 車，輸送於設置在遠方之保管庫。或者’保管庫6 6也可 以設置在與原子爐建物3 1連棟之建物內。 如依據本實施例，藉由在R P V內置入廢棄物，與 R P V —齊地搬出，可以一次將複數之廢棄物搬出於原子 爐建物外之故，比起習知之搬出R P V以及廢棄物之方法 ，搬出廢棄物之次數可以減少。因此，可以縮短將廢棄物 由原子爐建物搬出之作業時間。又，可以減少將廢棄物由 原子爐建物搬出之際使用之容器以及遮蔽體之數目。又， 於RPV安裝遮蔽體之際，藉由將RPV吊起暫置於 R SW之上面之遮蔽體內，可以於R P V容易地安裝遮蔽 體。又，可以減少由R P V之爐心區域對原子爐建物內部 之幅射線量。 (實施例2 ) 經濟部智慧財產局員工消費合作社印製 接著，說明本發明之實施例2之核電廠之機器搬出方 法。本實施例係在實施例1之步驟S 5中，於被裝齒於爐 心隔板5頂部之狀態之上部格子板7開啓孔，藉由此孔， 將切斷或拆除之配管以及構造物之廢棄物插入爐心隔板5 內之方法。利用第1圖（c )說明本實施例。本實施例與 實施例1不同處爲：實施例1之第1圖（a )之步驟S 5 在本實施例中，成爲第1圖（c )所示之步驟S 5 a之點 ’以及實施例1之第1圖（b )之步驟s 1 〇 3在本實施 例被消除之點。其它之順序與實施例1相同之故，此處， -23- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 477987 A7 B7 五、發明説明（21 ) 省略說明。 (請先閲讀背面之注意事項再填寫本頁) 說明步驟S 5 a。在步驟S 5 a中，如第1 6圖所示 般地，切斷位於爐心隔板5頂部之上部格子板7之格子7 a，在上部格子板7開孔。上部格子板7之格子7 a係板 厚約1 5 m m，切斷此格子7 a部，可以在上部格子板7 a開孔。又，在上部格子板7開孔時產生之格子7 a之切 斷片載置於爐心隔板5內。此時之爐水水位6 7 a ，由於 上部格子板7之輻射線量高之故，設原子爐井3 2爲滿水 之位置。 藉由本實施例，可以獲得與實施例1相同之效果。進 而藉由在上部格子板7開孔，可以不由隔板上部拆除上部 格子板7，將配管等之廢棄物搬入位於上部格子板之下部 .之隔板內側。又，不須拆除上部格子板7之故，沒有必要 將上部格子板重新固定。 (實施例3 ) 經濟部智慧財產局員工消費合作社印製 接著，說明本發明之實施例3之核電廠之機器搬出方 法。本實施例係不進行實施例1之步驟S 5以及步驟 S 1 0 3，在R P V 1內之上部格子板7之上插入切斷或 拆除之配管以及構造物之方法。本實施例之流程係消除第 1圖（a )之步驟S 5以及步驟S 1 0 3者。又，於步驟 S 6中，如第1 7圖所示般地，係將切斷或拆除之配管以 及構造物搬入上部格子板7之上側。本實施例與實施例1 不同之處爲：不實施實施例1之步驟S 5以及步驟 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X297公釐) 24 - " 477987 A7 B7 五、發明説明（22 ) S 1 〇 3 ，以及步驟S 6之搬入目的地之點。其它之點與 實施例1相同之故，此處，省略說明。 (請先閱讀背面之注意事項再填寫本頁) 於步驟S 6中，將切斷或拆除之配管以及構造物載置 於上部格子板7。該配管或該構造物有由上部格子板7之 格子落下於隔板5之內側之虞之情形，也可以在上部格子 板7之上鋪設鐵板等，以進行落下防止。 於本實施例中，也可以獲得與實施例1相同之效果。 進而，不於上部格子板7進行加工之故，可以減少工程數 。又’沒有必要拆除上部格子板7之故，無須重新固定上 部格子板7。可以減少工程數之故，能夠縮短作業時間。 又，配管或構造物不收容於R P V 1內之情形，也可 以利用另外準備之輻射線遮蔽容器，由原子爐建物3 1搬 出。 (實施例4 ) 經濟部智慧財產局員工消費合作社印製 接著，說明本發明之實施例4之核電廠之機器搬出方 法。本實施例係在實施例1之步驟S 1 〇之配管切斷以及 搬出之中，於切斷前，在R P V 1內側之噴嘴部插入以彈 性體製作之封水塞，切斷連接於噴嘴之配管後，由R P V 1之外部藉由熔接等在噴嘴安裝密封板之方法。其它之順 序與實施例1相同之故，此處，省略說明。封水塞5 1係 使用以橡膠等之彈性體製作之彈性袋之氣球。 說明本實施例之步驟S 1 〇 1 ◦在步驟S 1 0 1中， 如第1 8圖（a )所示般地，將爐水水位6 7 a保持在 -25- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 477987 A7 B7 _ 五、發明説明（23 ) (請先閲讀背面之注意事項再填寫本頁) R P V凸緣1 c上部。接著，由爐內插入以彈性體製作之 氣球5 4。接著，將液體狀之流動性硬化劑送入氣球5 4 內，使氣球5 4膨脹。接著，等待該流動性硬化劑硬化。 藉由此，氣球5 4成爲封水塞5 1 ，關閉主蒸汽噴嘴9。 接著，將被連接於主蒸汽噴嘴9之主蒸汽配管9 a由與主 蒸汽噴嘴9之連接部以及主蒸汽配管9 a向下之部份切斷 。切斷後，如第1 8圖（b )所示般地，由R P V 1之外 側將噴嘴密封板5 2安裝於主蒸汽噴嘴9。接著，將該切 斷片由縱置之上部格子板7與R P V 1之間隙載置於隔板 5內之爐心支持板6之上。 於步驟S 1 0 2至步驟S 1 0 8中，也以同樣之順序 進行封水，在各別之步驟中，切斷配管。如此，步驟 S 1 0 終了。 經濟部智慧財產局員工消費合作社印製 依據本實施例，也可以獲得與實施例1相同之效果。 進而，藉由彈性體以封水，封水塞可以更密接於噴嘴之故 ，可以容易進行密封。又，如依據本實施例，於步驟 s 1 0中，在切斷各噴嘴之際，維持爐水水位在噴嘴開口 部之上側之狀態下，可以進行連接於噴嘴之配管之切斷以 及安裝噴嘴密封塞。藉由此，可以降低作業員之曝露量。 又.，氣球5 4也可以使用封入水吸收劑之氣球，藉由 將空氣與水送.入氣球內以使氣球硬化。又，氣球5 4也可 以使用具有氣體（例如，空氣、氮氣）止回閥之氣球，藉 由將氣體或氣體以及低濃度灰泥送入氣球內以使氣球膨脹 〇 -26- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 477987 A7 _ _ B7 五、發明説明（24 ) (請先閲讀背面之注意事項再填寫本頁) 依據上述之各實施例，可以提供：在由原子爐建物搬 出R P V之際，可以縮短作業時間，能夠削減使用之容器 數之原子爐建物內機器之搬出方法。 又，藉由與RPV —齊地，將被連接於RPV之配管 或構造物搬出R P V原子爐建物外，可以縮短該配管或該 構造物之撤除所需要之時間。又，藉由使R P V 作爲搬出之際之容器使用，可以使該配管或該構造物搬出 原子爐建物外之際所需要之保管容器數減少，以及花費於 對該保管容器之收容作業以及污染檢查作業之作業時間縮 短。又，藉由保管容器數之減少，能夠削減將保管容器輸 送於保管場所所需要之時間以及保管空間。藉由這些，可 以縮短R P V更替作業之工期，能夠縮短R P V更替作業 之核電廠之停止期間。又，可以降低切斷撤除之配管或構 造物之廢棄物之輸送以及保管之成本。 經濟部智慧財產局員工消費合作社印製 上述之各實施例雖係說明於R P V更替工事之R P V 之搬出作業適用本發明之例，但是同樣也可以適用於成爲 除役之核電廠之被輻射化之大型機器（也包含R P V )之 搬出作業。 又，上述之各實施例雖係適用於具有R P V之B W R 之R P V更換，但是，對於具有原子爐容器之加壓水型原 子爐（以下，P W R )之原子爐容器之更換以及P W R之 蒸汽產生器之更換也可以適用。 圖面之簡單說明 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X297公釐） _ 27 - 477987 A7 _ B7 五、發明説明（25 ) 第1圖（a )係顯示實施例1之搬出順序之流程圖。 (請先閲讀背面之注意事項再填寫本頁) 第1圖（b)係顯示第1圖（a)之步驟S10之詳 細之流程圖。 第1圖（c )係顯示實施例2的搬出順序之流程圖。 .第2圖係實施例1之原子爐建物之剖面圖。 第3圖係實施例1之原子爐儲存容器之剖面圖。 第4圖係實施例1之R P V之剖面圖。 第5圖（a )係顯示在第1圖（a )之步驟S 3中， 進行燃料集合體之取出作業之狀況圖。 .第5圖（b )係顯示將上述格子板於爐心隔板（ shroud )上部縱置之狀態。 第5圖（c )係顯示將上述格子板於爐心隔板（ shroud )上部縱置之狀態。 第6圖係顯示將廢棄物搬入爐內之狀態圖。 第7圖係顯示將配管搬入爐內之狀態圖。 第8圖（a )係顯示將配管搬入爐內之狀態圖。 第8圖（b )係顯示將配管搬入爐內之狀態圖。 經濟部智慧財產局員工消費合作社印製 第9圖係顯示將上部格子板回復爲爐心隔板上部之水 平狀態之狀態圖。 第1 0圖係顯示切斷再循環系入口配管，插入爐內之 狀態圖。 第1 1圖係顯示切斷再循環系出口配管，插入爐內之 狀態圖.。 第1 2圖係顯示切斷R p v排水配管之狀態圖。 -28- 本紙張尺度適用中.國國家標準（CNS ) A4規格（210X297公釐） 477987 A7 B7 五、發明说明（26 ) 第1 3圖係顯示將遮蔽體暫置於R s w上之狀態圖。 第1 4圖係顯示將R p V以及遮蔽體由開口部搬出之 狀態圖。 第1 5圖係顯示將R p V以及遮蔽體搬入保管庫之狀 態圖。 第1 6圖係顯示在上述格子板開孔之狀態圖。 第1 7圖係顯示在上部格子板之上側收容廢棄物之狀 態圖。. 第1 8圖（a )係顯示爲了密封水之故在噴嘴入口插 入氣球之狀態圖。 第1 8圖（b )係顯示使插入噴嘴入口之氣球膨脹’ 切斷封住之配管，於噴嘴安裝封閉塞之狀態圖。 第1 9圖係顯示在原子爐建物之外裝置起重機之狀態 圖。 第2 0圖係顯示在r p v嵌合遮蔽體之狀態圖。 第2 1圖係顯示以遮蔽體以及保養板密封r p V之狀 態圖。 第2 2圖係顯示切斷爐心量測配管之狀態圖。 主要元件對照 2 爐內構造物 3 蒸汽乾燥器 4 汽水分離器兼隔板頭 5 爐心隔板 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） _ 29 - (請先閱讀背面之注意事項再填寫本頁) 訂 經濟部智慧財產局員工消費合作社印製 477987 A7 B7 五、發明説明（27 ) 6 爐 心 支 持 板 7 上 部 格 子 板 8 噴 射 泵 9 主 蒸 汽 噴 嘴 1 〇 給 水 噴 嘴 1 1 爐 心 噴 灑 噴 嘴 1 2 再 循 in 入 □ 噴 嘴 1 3 再 循 出 P 噴 嘴 1 4 爐 心 量 測 噴 嘴 1 8 R P V 基 座 3 〇 P C V 安 定 器 3 1 原 子 爐 建 物 8 1 機 器 儲 池 (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X297公釐） _ 30 -477987 A7 B7 V. Description of the invention (1) Technical field (please read the precautions on the back before filling out this page) The present invention relates to the method for removing the machine in the building of the atomic furnace, especially the method for removing the atomic furnace building from the nuclear power plant. BACKGROUND OF THE INVENTION The first conventional technique of a method for removing an atomic furnace container (hereinafter, referred to as R p V) of an activated device from an atomic furnace building is described in Japanese Patent Application Laid-Open No. 6-2 3 0 1 8 Gazette. This method is a method of hoisting an RPV on an air lock chamber set on the roof of an atomic furnace building, and moving the air lock chamber and the R P V -body while maintaining the air lock chamber at a negative pressure. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs The second know-how about the removal of R PV has been described in JP-A No. 8-6 2 3 6 8. This method is to set up a clean room adjacent to the building of the atomic furnace and cover the opening on the roof. The furnace structure, the control rod drive mechanism housing (hereinafter referred to as the CRD housing), and the RPV are integrated into one and move in this clean room How to move out. The same publication also describes a method in which the furnace structure, the CR D shell, the R P V, and the r shield are integrated into a single unit, and moved and carried out in a clean room. The third conventional technique concerning the removal of R PV is described in Japanese Unexamined Patent Publication No. 9-1 14 5 8 82. This method is to suspend the structure in the furnace and the C RD shell together with R P V, and install a cylindrical shielding body on the outer surface of the furnace to seal a large block and remove it from the building of the atomic furnace. This paper size is applicable. National Standard (CNS) A4 Specification (210X297 mm) " " " 477987 A7 B7 V. Description of Invention (2) (Please read the precautions on the back before filling this page) However, in the first to the first In the conventional technology of 3, although the method of I's moving out of RPV is recorded, it is not explicitly remembered that it is continued to rp V bis, with . The order of breaking of structures such as pipes or Fang Pei, the method of removing after cutting off, or Baohuang Fangyi—etc. DISCLOSURE OF THE INVENTION The object of the present invention is to provide a method for moving out a nuclear power plant, which can shorten the operation time required to move out the removed structures from the machine. In order to achieve the above-mentioned object, the present invention is characterized in that: the structure of the aforementioned nuclear power plant, which is located on the birth date of the machine installed in the nuclear power plant, is to be covered with a radiation shielding body, and the removed structure is contained in Interior space. The aforementioned machine is moved out of the building in which the aforementioned machine is arranged. '' Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, according to the present invention, a machine removed from a building to be housed in a machine removed from the building may be removed from the nuclear power plant to remove the machine. . Therefore, the operation time required for the removal of the above-mentioned structures accompanying the removal of the machine can be significantly reduced. In addition, since the removed structure is contained in the machine and carried out, the number of containers used for removing the structure can be reduced. In another aspect, in order to achieve the above-mentioned object, another embodiment of the present invention is: dismantling the structure of the aforementioned nuclear power plant located outside the machine of the nuclear power plant, and storing the demolished structure within the aforementioned machine. In the state covered by the radiation shielding body, the aforementioned machine is' moved out of the building where the machine is arranged. i The paper size applies the Chinese National Standard (CNS) A4 specification (210X297 public director) 7 ^ 477987 A7 B7 _____ V. Description of the invention (3) (Please read the precautions on the back before filling this page) Also, in order to achieve the above purpose Another embodiment of the present invention is as follows: a structure located on the outside of a nuclear power plant and the structure removed by the aforementioned nuclear power plant is housed in the internal space of the aforementioned machine and removed, and will be covered by a radiation shielding body The aforementioned machine containing the aforementioned structure inside is moved out of the building where the machine is arranged. In order to achieve the above-mentioned object, another embodiment of the present invention is that the furnace water is full in the atomic furnace container until the pipe is connected to the atomic furnace container. The connection portion is plugged, the piping is cut off the outside of the atomic furnace container, and a closing plate is attached to the cut portion. This makes it possible to reduce the radiation exposure of the worker who cuts the piping because it can be shielded by the boiler water. The best form for implementing the invention. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. R P V is a large machine with a height of about 25 m, a diameter of about 6 m, and a weight of about 1,000 tons. About 50 to 60 nozzles, such as a main steam outlet nozzle or a water supply nozzle, are mounted on the RPV, and piping is connected to these nozzles. In the R P V unloading operation, the pipe connected to the nozzle or the surrounding steel structure must be cut and removed. The piping cutting and removing operation becomes an operation in a high-radiation field because R P V is activated. Therefore, in this cutting operation, it is necessary to talk about a method of shielding the radiation. In addition to the piping, structures such as a fuel exchange telescopic tube and a bulkhead are connected to the RP V. In order to remove the R P V, these structures must also be removed. The total weight of these structures is also about 1,000 tons. In this paper size, the Chinese National Standard (CNS) A4 specification (210X297 mm) ~ '477987 A7 B7 V. Description of the invention (4) (Please read the precautions on the back before filling out this page) When some structures are removed For reasons of containing radiation, it must be contained in a container with radiation shielding ability (hereinafter referred to as a "cask"). When it is stored in a container, the structure must be cut according to the size of the container, and the amount of work becomes huge. The container is expensive due to its radiation shielding ability. Therefore, in order to accommodate these structures, there is a problem that many expensive containers are required. In addition, in the handling of the container containing the structure, in addition to the surface contamination inspection of the container, each container must be transported and stored, and the amount of work required becomes enormous. Therefore, there is a problem that the construction period becomes longer. Further, in the pressurized water type atomic furnace, not only the atomic furnace container, but also the same problem occurs when the steam generating device is carried out. Hereinafter, examples for achieving the purpose will be described. (Embodiment 1) Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs Explains a method for removing a machine in a nuclear power plant according to Embodiment 1 of the invention. This embodiment is an embodiment to which the present invention is applied when R P v is removed from a boiling water type atomic furnace (hereinafter, referred to as B W R). In this example, it is explained that while lowering the water level of the furnace, the pipes connected to the nozzles of the RPV are sequentially cut from the upper part of the RPV, the grid plate is removed, and the upper flange of the partition plate is vertically placed in the furnace The waste from the space between the RPV and the upper grid plate outside the atomic furnace building is moved into the partition, and then the upper grid plate is restored to a horizontal state on the upper side of the partition, and other waste is stacked on the upper grid plate A method of removing RPV from the atomic furnace building together with the waste and storing it in a warehouse. This paper size is applicable. National Standard (CNS) A4 specification (210X297 public director) 477987 A7 B7 V. Description of the invention (5) The second diagram is the BWR-4 type atomic furnace building in this embodiment to which the removal sequence of the first diagram (a) is applied. Zhi a little longitudinal section. Atomic furnace building 3 1 R P V 1 is a building in which the interior is arranged. Furnace structure 2 is a structure located in RPV1. In the atomic furnace building 31, there is PCV16 below the operating bed 80, and RPV1 is contained in PCV16. R P V 1 is provided on the R P V base 1 9 provided inside the P C V 1 6, and an atomic furnace shielding wall (hereinafter, referred to as RSW) 17 for shielding radiation from R P V 1 is provided on the outside of the RPV 1. On the upper side of PCV 1 6 are installed the atomic furnace shaft 3 filled with water when the fuel assembly is replaced or the structure located inside RPV 1 is taken out. 2. The used fuel storage tank for storing used fuel elements 3 3. Temporarily place the machine storage tank 8 in the structure of the furnace such as the steam dryer taken out during the periodic inspection. A fuel rack 3 3 a for storing used fuel elements is provided in the used fuel storage tank 3 3. An atomic furnace pressure vessel cover (hereinafter, referred to as an RPV cover) 37 is provided on top of the R P V 1. The interior of PCV 1 6 is shown in Figure 3. As shown in Figure 3, RPV 1 is printed by the Ministry of Economic Affairs ’Intellectual Property Bureau employee consumer cooperative to print the basic V product P in R, which is fixed at 1 and fixed by R 8 at 2: The base of the spiral wall is IX IX VV p PRR borrowed from the side, at the center. In the middle 8 at 1 seat, the nozzle is sprayed with rH, sprayed with V heart P furnace R inside, IX 9 V nozzle P is sprayed with steam, but the main steamer is cooled, and the machine 1 electric nozzle is sprayed with water to guide The return of the soda-water steam flow is measured by measuring 2 1-Η, and the measuring loop of the mouth of the furnace is sprayed into the furnace. 3, inside τ ~ _ 1 nozzle V spray ρ ρ R out of the ring, 1 and 1 and the pressure of the furnace in the furnace to measure 1 in the furnace V, P 4 R 1 to remove the nozzle to spray, R Mouth spray again, install and measure pressure differential heart 5 mouth spray water, two wide, V RP 7 feet, one sheet of paper, one quasi-standard for domestic use, suitable for domestic use \ 1 / S Ν Secret 9 2 477987 Employees of Intellectual Property Bureau, Ministry of Economic Affairs, employee consumption Cooperative prints A7 ___— B7 _ V. Description of the invention (6) The outer surface of RPV 1 is provided with insulation material 192. In the interior of P C V 1 6, a fuel replacement telescopic tube 15 and a partition wall 19 in a compartment P C V 16 are set on the upper part. In the RPV base 1 8 are provided: a control rod housing of the guide control rod (hereinafter referred to as a C R D housing) 2 3. Support C. RD case 2 3 CRD case supporting beam (hereinafter, referred to as CRD beam) 2 2, CRD case supporting block (hereinafter, referred to as CRD block) 2 5 and supporting furnace neutron monitor (hereinafter, It is referred to as IC CM chassis 24. The RSW1 7 is fixed to the R P V base 18 by a base screw 29. On the upper side of R S W 1 7: PCV stabilizer 30 for PC C 16 seismic support members, and RPV stabilizer 30a for RPV 1 seismic support. As shown in FIG. 4, the interior of the R P V 1 is provided with a hearth partition (hereinafter referred to as a partition) 5 at the center, and the partition 5 is supported by a partition supporting cylinder 8 2. The partition support cylinder 8 2 is supported on the bottom of the R P V 1 by a baffle 8 4 and a partition support leg 83. Inside the partition plate 5, an upper grid plate 7 of an upper furnace core support plate is provided on the upper portion thereof, and a furnace core support plate 6 of a lower furnace core support plate is provided on the lower portion thereof. Furthermore, a control rod 8 5, a control rod guide tube 86, and a fuel assembly 87 are provided inside the partition plate 5. Above the partition plate 5 are provided: a steam dryer 3, a steam-water separator and partition plate head 4, a guide rod 88, a water supply distributor and piping 8 9, a furnace core spray distributor and piping 90. The soda-water separator / partition head 4 and the partition 5 are connected through screws (not shown) provided on the upper part of the partition by screws. Below the partition plate 5 are installed devices such as an IC frame 24, a m core stabilizer 27, and the like. The RPV head 37 is applicable by the paper size. National Standard (CNS) A4 Specification (210X297 mm) _ 9 _ (Please read the precautions on the back before filling this page) 477987 A7 B7 State of the Invention and Invention (7) (Please read the precautions on the back before completing this Page) Bolts 37a attached to flange 37b are fixed to RPV1. Provided at the bottom of the R P V 1 are: the R P V skirt 1 b, a CRD housing 23 containing a control rod driving mechanism (hereinafter referred to as CRD) 20, and an I CM housing 24 containing I CM 2 1. In this way, various types of furnaces are installed inside and outside the R P V 1. Inside and outside the furnace are divided into a furnace structure 2 which is provided inside the R p V 1 and a structure other than the furnace structure. The structure 2 in the furnace is formed by a steam dryer 3, a steam-water separator and partition head 4, a partition 5, a furnace core support plate 6, an upper grid plate 7, a jet pump 8, and the like. Structures other than the structure inside the furnace 'are provided on the side wall (cylinder part) of the RPV 1 with a main steam nozzle 9, a water supply nozzle 10, a hearth spray nozzle 1, a recycling inlet nozzle 1, and a recycling outlet. Nozzle 1 3. Furnace core measurement nozzle 1 4. Furnace core differential pressure measurement device nozzle 5 6. RPV drainage nozzle 57. CRD casing 2 3 and IC Μ casing 24. Each of these nozzles is connected to a separate system piping. In the present embodiment, for a nuclear power plant having such a configuration, R P V is carried out. The removal operation of the printed R RP V printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is performed by the flow shown in FIG. 1 (a). The following describes the method for moving out RP v in this embodiment. Start, in step s1, send. The electric motor was dismantled and the periodic inspection of the nuclear power plant was started. In step S2, the opening operation of the atomic furnace is performed. At this time, the furnace water level 67 a of the furnace water 67 is the full water level of the atomic furnace shaft. In the opening operation of the atomic furnace, the removal of PCV 16 and the removal of RP V head 3 7 -10- This paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) 477987 A7 B7 V. Description of the invention ( 8) (Please read the precautions on the back before filling this page) Removal of RPV head, removal of steam dryer 3 of steam dryer 3, removal of separator head of steam water separator and partition head 4. The removed steam dryer 3 and the steam-water separator and partition head 4 are moved to the machine tank 81. By removing the steam dryer 3 and the steam-water separator and partition head 4, the upper side of the upper upper grid plate 7 in the R P V 1 becomes a large space. The opening operation of the atomic furnace is a key operation necessary to dismantle the fuel assembly 87 in the furnace core. In this embodiment, the removed steam dryer 3 and the steam-water separator and partition head 4 are used without replacement. Moreover, if necessary, it is not reused, and it may be replaced with a new one. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Next, in step S3, the entire fuel assembly 87 in R P V 1 is taken out (Fig. 5 (a)). The entire fuel assembly 87 installed in the furnace core is taken out of the furnace core and moved to a fuel rack 3 3 a installed in the used fuel storage tank 3 3. At this time, the furnace water level 6 7 a is a position where the atomic furnace shaft 6 is at a full water level. Next, in step S4, the control rod 85 and the control rod guide tube 86 are unloaded. All the control rods 8 5 and 8 6 are moved to the fuel rack 3 3 a which is set in the used fuel tank 3 3. In this embodiment, it is assumed that the removed control rod 85 and the control rod guide tube 86 are used again without replacement. In addition, if necessary, it can be discarded and replaced with a new one. In steps S 3 and S 4, the entire fuel assembly 87, the control rod 85, and the control rod guide tube 86 in the furnace core partition plate 5 are taken out. Big space. In steps S 1 to S. The processes up to 4 are the same as those performed by regular periodic inspections. Next, in step S5, the upper grid plate 7 is replaced by the furnace core partition 5. The paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -11-477987 A7 B7 V. Description of the invention (9) ( Please read the precautions on the back before filling out this page) Remove the top and perform the operation of placing it on the upper part of the hearth partition 5 (Figure 5 (b)). The upper grid plate 7 is removed from the top of the hearth partition plate 5, and is vertically placed on the upper part of the hearth partition plate 5 (Fig. 5 (c)). At this time, the furnace water level 6 7 a is set to make the atomic furnace well because the radiation amount of the upper grid plate 7 is high. 3 2 is the position of full water level. Since the upper vertical grid plate 7 has a larger diameter than the furnace core partition plate 5, the flange is hung on the upper flange of the furnace core partition plate 5 and does not fall inside the furnace core partition plate 5. The vertically upper grid plate 7 is fixed with a cable or the like. This prevents the vertical grid plate 7 from falling over. In addition, when the upper grid plate 7 is placed inside the R P V 1, a passage for transferring wastes outside the atomic furnace building into the lower side of the upper grid plate 7 can be secured inside the R p V 1. In addition, because the upper grid plate 7 is placed inside the R P V 1, the amount of radiation to the surroundings can be reduced compared to when the upper grid plate 7 is moved outside the R P V 1. Next, the disintegration operation around the R P V in step S 6 and the disintegration operation in the RPV base 18 in step S 20 are performed in parallel. In this embodiment, although step S 6 and step S 2 0 are performed in parallel, step S 2 0 may be performed after step S 6 or vice versa. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Step S6. In this step, all the connections of the structures outside R P V 1 and R P V 1 are removed. In this embodiment, the connection of the part enclosed by the dotted line in FIG. 5 (a) is removed. The details of step S 6 are steps S 7 to S 1 2. Hereinafter, description will be made sequentially from step S7. First, in step S7, as shown in FIG. 6, the furnace water level 6a is lowered to the RPV flange 1c. Next, remove the partition wall 19 and the fuel replacement telescopic tube 15. The partition wall 19 to be removed and the fuel change paper size are applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm). 477987 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (10) Replacing the telescopic tube 1 5 The gap between the upper upper grid plate 7 and R pv 1 is placed in the hearth of the partition 5 Support on board 6. Next, in step S8, the P C V stabilizer 30 is removed, and the gap between the upper upper grid plate 7 and the R P V 1 is placed on the core support plate 6 in the partition plate 5. By removing the P C V stabilizer 30, the structure located between the R P v 1 and P C V 16 and the lower side of the P C V stabilizer 30 can pass through the atomic furnace well 32 and move in the path inside RPV1. Next, step S 1 0 will be described. The details of step S 1 0 are represented by steps S 1 0 1 to S 1 0 8 as shown in FIG. 1 (b). First, in step S 1 0 1, as shown in FIG. 7, the furnace water level 6 7 a is maintained at the upper part of the RPV flange 1 c, and a water plug 5 1 is inserted from the furnace, and the main steam nozzle 9 is closed. . Next, the main steam pipe 9a connected to the main steam nozzle 9 is cut off by the connection portion with the main steam nozzle 9 and the main steam pipe 9a downward. After cutting, the nozzle sealing plate 5 2 is mounted on the main steam nozzle 9 ° from the outside of RPV 1. Then, the cutting piece is placed in the furnace in the partition plate 5 through the gap between the upper upper grid plate 7 and the RPV 1. Heart support plate 6 above. Here, when the main steam piping 9 a is cut off, the furnace water level 6 7 a is lowered below the opening of the main steam nozzle 9, and the main steam piping 9 a is cut off, and the nozzle sealing plate 5 is installed. After 2, the method of returning the water level of the boiler water to the upper part of the RPV flange 1 c again. Next, in step s 102, the water supply pipe 10a and the furnace core spraying pipe 1 1a connected to the water supply nozzle 10 and the furnace core spraying nozzle 11 are cut and moved in the R P V 1. Water distributor 1 0 b or please read the notes of back Sj before writing this page. The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -13-477987 A7 B7 _ V. Description of the invention (11) The inner spraying pipe 1 1 b is connected to the water supply nozzle 10 and the furnace core spraying nozzle 1 1 that were cut off in this step. It is not possible to perform as in the step (please read the precautions on the back before filling in this Page) 5 1 〇1 'Insert the water plug 5 1 °, so' lowered the furnace water level 6 7 a to the opening of the water supply nozzle 1 〇 and the furnace core spray nozzle Printed by the consumer property cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1. The opening of 1 cuts the water supply pipe 1 0 a and the furnace core spray pipe 1 1 a outside the R P V 1, and then installs the nozzle sealing plate 5 2 on the water supply nozzle 10 and the furnace core spray nozzle 11. Fig. 8 (a) shows a state where the water supply pipe 10a is cut by the water supply nozzle 10. The furnace core is lowered below the opening of the water supply nozzle 10, and the water supply pipe 10a is cut off by the joint with the water supply nozzle 10 and the water supply pipe 10a downward. After the cutting, the nozzle sealing plate 5 2 is attached to the water supply nozzle 10 from the outside of the R P V 1. Next, the cut piece is placed on the furnace core support plate 6 in the partition plate 5 with a gap between the vertically upper grid plate 7 and the R P V 1. The furnace core spraying nozzle 11 and the furnace core spraying pipes 1 1 a and 1 1 b are also cut off in the same manner. Finally, the boiler water level 6 7 a is returned to the position of R p v flange 1 c. Here, when the water supply pipe 10a and the furnace core spray pipe 1a are cut off, the water supply nozzle 10, the water supply pipe 10a, and the water supply distributor 10b are shown in FIG. 8 (b). As shown in the figure, the water level 6 7 a of the furnace is maintained at the position of step S 1 0 1, and the water distributor 1 0 b connected to the water supply nozzle 1 〇 or the spray nozzle 1 1 connected to the core is cut off from the inside of the RPV. In the furnace core spraying pipe 1 1 b, a water plug 5 1 is inserted into each nozzle from the inside of R p V, and then the water supply pipe 10a and the furnace core are sprayed from the outside in the same procedure as in step S 1 〇1. The piping 1 1 a may be attached with the nozzle sealing plate 5 2. In this case, the Chinese paper standard (CNS) A4 (210X 297 mm) can be applied without reducing the paper size. 14Ί — — 477987 A7 B7 V. Description of the invention (12) The nozzle sealing plate 5 2 is installed at a low water level in the furnace. By shielding the furnace water, the amount of radiation to the operator can be further reduced. (Please read the notes on the back before filling out this page.) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. In step S 102, you can also use the sequence described below. First, as shown in FIG. 8 (a), the water level of the boiler water 67a is lowered to the opening portion of the water supply nozzle 10 and the opening portion of the furnace spray nozzle 11, and then the connection is cut off from the inside of the RPV. At the water supply distributor 1 0 b of the water supply nozzle 1 0 or the furnace spray pipe 1 1 b connected to the core spray nozzle 11 1, insert a water plug 5 1 ° into each nozzle from the inside of the RPV. Then, make the water level of the furnace water 6 7 a rises to the position of step S 101. Next, the water supply pipe 10 a is cut off from the joint portion with the water supply nozzle 10 and the water supply pipe 10 a is downward. Similarly, the furnace core spraying pipe 1 1 a is also cut. After the cutting, the nozzle sealing plate 5 2 was mounted on the water supply nozzle 10 and the furnace core spraying nozzle 1 1 from the outside of the RPV 1. Then, the cutting piece was placed on the gap between the vertical upper grid plate 7 and the RPV 1 The furnace core support plate 6 in the partition plate 5 is on. By using this sequence, it is possible to cut off the water supply distributor and the furnace core spray distributor outside the boiler water, so that the cutting can be easily performed. In addition, when the water supply pipe 10a and the furnace core spray pipe 1a are cut off, the radiation can be shielded by the furnace water, which can reduce the operator's exposure. Next, step s 103 is described. In this step, as shown in Figure 9, it will become. The vertical upper grid plate 7 is restored to the level before vertical placement. The furnace water level 6 7 a is the position of the R P V flange 1 c. In this embodiment, after the end of step S 102, the vertical upper grid plate 7 is restored to a horizontal level, but in step S 1 〇1 or step S 102, if the paper size is moved to China, National Standard (CNS) A4 specification (210X297 mm) 477987 A7 —__ B7 _ V. Description of the invention (13) The structure above it is restored to the level of the upper grid plate 7 due to the structure moved into the partition. In the case where an obstacle occurs, step S 1 03 may be performed at this point in time. In step S5, the upper grid plate 7 is not placed vertically, but the upper grid plate 7 is moved to the machine storage tank. After the structure is carried in, the upper grid plate is returned to the partition in step S103. The upper part is also available. After the step S 103 is performed, the structure carried into the R P V 1 is placed on the upper grid plate 7. In this case, it is not necessary to fix the upper grid plate with a cable or the like, and work can be performed easily. Next, step S 104 is described. In this step, the core measurement pipe 1 4 a connected to the core measurement nozzle 14 is cut off and moved in the R P V 1. Since the furnace core measurement nozzle 14 is arranged near the fuel during the operation of the atomic furnace, the radiation amount near the furnace core measurement nozzle 14 is high. Therefore, after lowering the furnace water 6 7 to the lower side of the furnace core measurement nozzle 14, if you open the RSW plug (door) 1 7 a and cut off the furnace core measurement piping 1 4 a outside the RPV 1, there is a cut The possibility that the exposure of the operator exceeds the specified level at the time of the break. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Therefore, the following methods are used. First, as shown in FIG. 22 (a), the water level of the furnace water 67a is lowered to be lower than the nozzle 14 of the measuring device in the furnace. Next, at the cutting position 9 5 set outside the 118 Jasser 178, cut off the pipe 1 4 a of the measuring device in the furnace. Next, as shown in FIG. 22 (b), a water plug 5 1 is inserted through the opening of the cut-out furnace measuring pipe 1 4 a, and the nozzle 14 of the measuring device in the furnace is sealed. Article 2 2. As shown in the figure (c), the furnace water level 6 7 a is raised to the upper side of the partition plate 5. This paper size is applicable to China National Standard (CNS) A4 (210X297 mm). 477987 A7 B7 V. Description of the invention (14) (Please read the precautions on the back before filling out this page) Then, open the R sw plug 1 7 a 'and connect the furnace measuring tube 1 4 a with the nozzle of the measuring device in the furnace 1 4 The connection is cut. Next, the nozzle sealing plate 5 2 is mounted on the outside of the nozzle 14 of the measuring device in the furnace by welding. The installation of the nozzle sealing plate 5 2 is not only by welding, but also by screwing. Next, the RS SW plug 17a was sealed. After the cutting is completed, the cut piece is carried into the RPV 1 and placed on the upper grid plate 5. With this, it is possible to cut off the nozzle 14 of the measuring device in the furnace through the RP V 1 penetrating through the R SW 1 7 while suppressing the exposure of the operator to a predetermined level or less. In addition, the cut-off position of the furnace core measurement piping 14a is not only the connection between the furnace core measurement piping 14a and the furnace measurement device nozzle 14, but also the RPV1 when the water plug 51 is installed. When the RPV 1 is moved upward, the protruding portion becomes a position that does not interfere with the inside of the RSW 1 7. Next, step S 105 is described. In step S 105, the water level of the furnace water 6 7 a is maintained at step S 104, and a water plug 5 1 is installed in the jet pump 8 to cut off the recirculation system inlet pipe 1 2 a and carry it into the furnace. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. As shown in Fig. 10, the recirculation inlet nozzle 12 is connected to the jet pump 8 on the inside of the furnace. First, the inlet stirring part 8 a of a part of the jet pump 8 is removed, and the water plug 51 is inserted. Next, the recirculation inlet pipe 1 2 a is cut off from the outside of the R P V 1 by the connection portion with the recirculation inlet nozzle 12 and the downward portion of the recirculation inlet pipe 1 2 a. After cutting ’, the nozzle sealing plate 5 2 is mounted on the outer side of the R P V 1 and looped in. □ Nozzle 1 2. Next, this cut piece is placed on the upper grid plate 7 ±. By using this sequence, the radiation can be shielded by the furnace water. The paper size applies the Chinese National Standard (CNS) A4 (210X297 mm) _ 1721 477987 A7 B7 V. Description of the invention (15) (please first Read the notes on the back and fill out this page) to reduce the exposure of the operator. Here, when the recirculation system inlet pipe 1 2 a is cut, the recirculation system inlet pipe 1 may be cut by lowering the furnace water level 6 7 a below the recirculation system inlet nozzle 12 2. 2a, after installing the nozzle sealing plate 52, the method of returning the boiler water level to the upper part of the RPV flange 1c again. In this case, the removal of the inlet stirring portion 8 a becomes unnecessary, and the removal of the inlet stirring portion 8 a may not be performed. Next, step S 106 is described. In step S106, while maintaining the furnace water level 67a at step S104, the recirculation outlet pipe 13a is cut off and carried into the furnace. First, as shown in Fig. 11, a water plug 51 is inserted into the recirculation outlet nozzle 13 from the inside of the furnace. Next, the recirculation system outlet pipe 13a is cut off from the connection side with the recirculation system outlet nozzle 13 and the downward part of the recirculation system outlet pipe 1a from the outside of the R P V 1. After the cutting, the nozzle sealing plate 5 2 is attached to the recirculation-type outlet nozzle 1 3 from the outside of the R P V 1. Next, this cut piece is placed on the upper grid plate 7. According to this sequence, the radiation can be shielded by the boiler water, which can reduce the exposure of the operator. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Next, step S 107 will be described. In step S 107, the pipes which are connected to the nozzles 56 of the furnace heart differential pressure measuring device which are arranged on the lower side than the recirculating outlet system nozzles 13 and the like are cut off, respectively. , Placed on the upper grid plate 7. The cutting sequence is as follows: First, lower the water level of the boiler water 6 7 a to the connection point with the R P V 1 of each piping, and cut off the nozzle. Next, after cutting, install the nozzle sealing plate 5 2 and place the cut piece on the upper grid plate 7 ° Chinese national standard (CNS) A4 specification (210X 297 mm) -18- 477987 A7 B7 V. Description of the invention (16) (Please read the precautions on the back before filling this page) In step S 1 〇7, the lower side is lower than the recirculation outlet nozzle 1 3 which is cut off from the furnace core area. The radiation volume is relatively low because it is separated. Even if the furnace water 6 7 is not used as a shield, it is connected to the furnace core differential pressure measurement device piping 5 6 a etc. which is connected to the furnace core differential pressure measurement device nozzle 5 6 and so on. It can be cut and carried out without being exposed to a large amount, and it can be operated. Next, step S 108 is described. In step S 108, after the furnace water 67 in the RPV 1 is completely removed by the RPV drainage nozzle 5 7, the RPV drainage pipe 5 7 a connected to the RPV drainage nozzle 5 7 is cut off, and the nozzle sealing plate 5 2 is installed. . The R PV drain pipe 5 7 a connected to the R P V drain nozzle 5 7 is disposed between the C R D case 2 3 ′ and the C R D case 2 3 are carried out together. Therefore, when the RPV drain pipe 5 7 a is cut off, the nozzle seal plate 5 is installed in the cut-off portion at a position not in the RPV base 70 that is involved with the RPV base 70 when the body is removed from the RPV 1. 2 . Next, the cut piece is placed on the upper grid plate 7. Then, step S10 is finished. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Next, step s 1 1 will be described. In step S 1 1, the R p V head 3 7 is mounted on the RPV flange by a ceiling crane ’and is mounted on the R P V 1 by the RPV bolt 3 7 a. Next, step S 1 2 will be described. In step S 12, the RPV1 stabilizer 30a for the anti-vibration support of RPV1 is removed, and RPV1 and RSW17 are cut off. Next, step S 2 0 will be described. In step S 2 0, the structures in the RPV base 1 8 are disassembled, and the RPV 1 and the RPV base are separated. This paper standard is applicable. National Standard (CNS) A4 specification (210X297 mm) -19-477987 A7 __B7 _ V. Description of invention (17) 1 8 connection. As shown in FIG. 1 (a), it is subdivided into steps S21 to S25. (Please read the precautions on the back before filling out this page) First, in step S 2 1, remove the C R D block 2 5. Slack Fix the nut of the C R D block and remove the C R D block. After dismantling, a storage area (not shown) is set in the RPV base to store the CRD block. Next, in step S 2, the cables connected to CR D 2 0 and I C M 2 1 are removed. For IC series, remove the cable terminal connector and remove the cable. Regarding CR D, disconnect the control rod from CR D, remove the connector of PI P (C R D's position detection device), and unplug the cable and PI P from CR D. After dismantling, move the C R D block, cables, and PI IP to a storage area (... (Not shown). Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Next, in step S 2 3, C R D 2 0 is removed. Using a CRD changer (not shown) set on the RPV base, loosen the screws under C R D and remove C R D. After the removal, a storage area (not shown) is provided in the RP V base to store C R D. The operations from step S 2 1 to step s 2 3 are the operations performed during a regular periodic inspection. Next, in step S 2 4, the pipe C 6 for insertion and removal of C R D is cut. The pipe for inserting and removing CR D was cut near the inner wall of the RP V base. When cutting, use mechanical cutting. Next, in step S 2. In 5, remove the C R D beam 2 2. After the C R D beam 22 is cut, the C R D beam 22 is removed. When cutting, use mechanical cutting. In addition, in the implementation of this paper, the national standard (CNS) A4 specification (2i0x297 mm) — 477987 A7 B7 V. Description of the invention (18) in steps S 2 4 and S 2 5 Mechanical cutting, but other cutting methods such as gas cutting can also be used. (Please read the precautions on the back before filling this page.) In this embodiment, the operation time can be shortened by performing steps S 6 and S 2 0 in parallel. First, after step S 6 is performed, step S is performed. 20, or vice versa. Next, in step S30, the installation of the crane 65 is performed, and in step S40, the opening for carrying out the RPV 1 on the roof of the atomic furnace building 31 is carried out (hereinafter, simply referred to as an opening). Ministry) Ministry of Economic Affairs, Intellectual Property Bureau, Employee Consumer Cooperatives printed 3 1 a setting. As shown in Fig. 19, a crane 65 is installed outside the atomic furnace building 31, and an opening 3a is set on the roof of the atomic furnace building 31. In addition, a switch device 64 which can be closed freely is provided in the tentative opening 3a. The tentative opening 3 a is set above the RPV 1. The size of the tentative opening 3 a is taken into consideration: the size of the RPV 1 to be moved in and the shielding body installed in the RPV 1, the size of the sling for removing the shielding body, the size of the shielding body to be moved in and the shielding It is determined by shaking and the like when the body is moved out. In this way, by examining the shaking of the object passing through the tentative opening 3 1 a, the size of the tentative opening is determined, and it is possible to prevent the object passing through the opening 3 1 a from contacting the building of the atomic furnace. In addition, by setting the switch device freely to switch, it is possible to carry out countermeasures against the negative pressure management in the rain water or the atomic furnace building 31 during operation. Again, step S. The device of the crane 6 of 30 and the setting of the opening 3 1 a of step S 40. As long as the shielding body is installed at step S50, it can be performed at any stage. Next, in step S 5 〇, the cylindrical shielding body 60 is moved into the atomic furnace building 3 1 by the crane 6 5 as shown in FIG. 13 • 21-This paper standard is applicable. National Standard (CNS) A4 specification (210X297 mm) 477987 A7 ____ B7___ V. Description of the invention (19) (Please read the precautions on the back before filling this page), and temporarily place it on top of R SW1 7. Next, a strongback (lifter) 6 3 is attached to the RP V 1. Next, as shown in FIG. 20, RPV 1 is hung, and a stabilizer bracket 30 of the RPV 1 is fitted to a baffle 61 attached to the upper part of the shielding body 60. With this, in R. During normal operation of the P V 1, a shielding body 60 can be installed in the furnace core area 2 a in the area where the fuel is installed. Next, in step S60, the maintenance plate 60a is installed. As shown in Figure 21, RPV1 and the shielding body 60 are hoisted together by the crane 6 5 ^ —to cover the RPV head 37 and the CRD on the lower side with the maintenance plate 60 a. The housings 2 3 and the like are sealed and fixed at the ends of the maintenance plate 60 a with a sealing tape (not shown). For the maintenance board 60 a, vinyl chloride board or the like is used. Thereby, the RPV1 of the waste moved out of the building of the atomic furnace can be covered and shielded with the shielding body 60 and the maintenance plate 60a. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Next, in step S 61, RPV 1 is lifted out. As shown in FIG. 14, the RPV 1 and the shielding body 60 are lifted by the crane 65 and carried out of the atomic furnace building 3 1 through the opening 3 1 a. Before carrying out, measure the surface pollution degree of the shielding body 60 and carry out a pollution inspection. After unloading, close the switching device 64. Next, in step S 6 2, storage of the RPV 1 and the shelter 60 is performed. As shown in FIG. 15, a vertical underground storage 6 6 is arranged near the atomic furnace building 31, and the RPV 1 and the shielding body 60 that are carried out from the atomic furnace building 31 are hoisted. , Change the direction of the crane 65 to the direction of the storage 66, and carry it into the storage 66. After moving in, cover the storage vault 66 to make the storage vault 6 dense. 22- This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 477987 A7 B7 V. Description of the invention (20) (please first Read the notes on the back and fill out this page). Alternatively, the R P V 1 and the shielding body 60 may be placed on a trailer and transported to a remote storage room. Alternatively, the 'reservoir 66' may be installed in a building connected to the atomic furnace building 31. According to this embodiment, by inserting waste into the RPV and moving it out together with the RPV, the multiple wastes can be moved out of the atomic furnace building at a time, compared with the conventional method of removing RPV and waste. The number of waste removals can be reduced. Therefore, the operation time for removing the waste from the atomic furnace building can be shortened. In addition, it is possible to reduce the number of containers and shields used when the waste is removed from the atomic furnace building. In addition, when a shield is mounted on the RPV, the shield can be easily mounted on the R PV by lifting the RPV and temporarily placing the shield on the R SW. In addition, it is possible to reduce the amount of radiation from the core region of the R P V to the interior of the atomic furnace building. (Embodiment 2) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Next, a method for removing a machine from a nuclear power plant according to Embodiment 2 of the present invention will be described. In this embodiment, in step S5 of the first embodiment, a hole is opened on the upper grid plate 7 in a state where teeth are mounted on the top of the hearth partition plate 5. Through this hole, the pipe or structure that is cut or removed is opened. The method of inserting the waste into the hearth partition 5. This embodiment will be described using FIG. 1 (c). This embodiment differs from Embodiment 1 in that: Step S 5 of the first diagram (a) in Embodiment 1 is the point of step S 5 a shown in FIG. 1 (c) and the implementation thereof. The point s 1 〇3 of the first figure (b) of Example 1 is eliminated in this embodiment. The rest of the sequence is the same as that of the embodiment 1. Here, -23- This paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) 477987 A7 B7 5. Explanation of the invention (21) Omitting the description. (Please read the notes on the back before filling out this page) Step S 5 a. In step S5a, as shown in Fig. 16, the grid 7a of the grid plate 7 located on the top of the furnace core partition 5 is cut, and the upper grid plate 7 is opened. The grid 7 a of the upper grid plate 7 has a thickness of about 15 mm. If a part of the grid 7 a is cut, a hole can be opened in the upper grid plate 7 a. In addition, the cut pieces of the grid 7a generated when the upper grid plate 7 is perforated are placed in the hearth partition plate 5. At this time, the furnace water level 6 7 a is set to be full of water due to the high radiation amount of the upper grid plate 7. With this embodiment, the same effects as those of the first embodiment can be obtained. Further, by making holes in the upper grid plate 7, the upper grid plate 7 can be removed without the upper part of the partition, and the waste such as piping can be moved to the lower part of the upper grid plate. Inside of the bulkhead. In addition, since it is not necessary to remove the upper grid plate 7, there is no need to re-fix the upper grid plate. (Embodiment 3) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Next, a method for removing a machine from a nuclear power plant according to Embodiment 3 of the present invention will be described. This embodiment is a method of inserting cut or removed pipes and structures on the upper grid plate 7 in R P V 1 without performing step S 5 and step S 103 of the first embodiment. The flow of this embodiment is to eliminate step S 5 and step S 103 of FIG. 1 (a). In step S6, as shown in FIG. 17, the cut or removed pipe and the structure are carried into the upper side of the upper grid plate 7. This embodiment differs from Embodiment 1 in that steps S 5 and steps of Embodiment 1 are not implemented. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X297 mm). 24-" 477987 A7 B7 V. Description of the invention (22) S 1 0 3, and the point of the move-in destination in step S 6. The other points are the same as those of the first embodiment, and a description thereof is omitted here. (Please read the precautions on the back before filling this page.) In step S6, place the cut or removed pipes and structures on the upper grid plate 7. The pipe or the structure may fall from the grid of the upper grid plate 7 on the inside of the partition plate 5, and an iron plate or the like may be laid on the upper grid plate 7 to prevent the fall. Also in this embodiment, the same effects as those of the first embodiment can be obtained. Furthermore, the number of processes can be reduced because the upper grid plate 7 is not processed. Since it is not necessary to remove the upper grid plate 7, there is no need to re-fix the upper grid plate 7. The number of processes can be reduced and the operation time can be shortened. If the piping or structure is not contained in the R P V 1, the container may be shielded with a separately prepared radiation and carried out from the atomic furnace building 31. (Embodiment 4) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Next, a method for removing a machine from a nuclear power plant according to Embodiment 4 of the present invention will be described. This embodiment is in the process of cutting and carrying out the piping in step S 10 of the first embodiment. Before cutting, insert a sealing plug made of an elastomer into the nozzle portion inside the RPV 1 to cut off the connection to the nozzle. After piping, a method of attaching a sealing plate to the nozzle from outside the RPV 1 by welding or the like is used. The rest of the procedure is the same as that of the first embodiment, and a description thereof is omitted here. Water plug 5 1 is a balloon made of an elastic bag made of an elastomer such as rubber. Describe step S 1 〇1 of this embodiment ◦ In step S 1 01, as shown in FIG. 18 (a), the water level of the furnace water 6 7 a is maintained at -25- This paper size is applicable to China Standard (CNS) A4 specification (210X297 mm) 477987 A7 B7 _ V. Description of the invention (23) (Please read the precautions on the back before filling this page) RPV flange 1 c upper part. Next, balloons 5 4 made of elastomer are inserted into the furnace. Next, a liquid flow-type hardener is sent into the balloon 5 4 to expand the balloon 54. Next, wait for the fluid hardener to harden. As a result, the balloon 54 becomes a water plug 5 1 and the main steam nozzle 9 is closed. Next, the main steam piping 9a connected to the main steam nozzle 9 is cut off by the connection portion with the main steam nozzle 9 and the downward part of the main steam piping 9a. After cutting, as shown in FIG. 18 (b), a nozzle seal plate 5 2 is attached to the main steam nozzle 9 from the outside of R P V 1. Next, the cut piece is placed on the furnace core support plate 6 in the partition plate 5 through the gap between the vertically upper grid plate 7 and the R P V 1. In steps S 102 and S 108, water is also sealed in the same order, and in each step, the piping is cut off. Thus, step S 1 0 is ended. Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs According to this embodiment, the same effect as that of Embodiment 1 can also be obtained. Furthermore, by sealing the water with the elastic body, the water sealing plug can be more closely connected to the nozzle, and can be easily sealed. In addition, according to this embodiment, in step s 10, when the nozzles are cut, the water level of the furnace water is maintained above the nozzle opening, and the pipes connected to the nozzles can be cut and the nozzles can be installed Sealing plug. This can reduce the exposure of the operator. also. The balloon 5 4 can also be a balloon enclosed in a water absorbent, by sending air and water. Into the balloon to harden the balloon. In addition, the balloon 54 can also be a balloon with a gas (eg, air, nitrogen) check valve. The balloon or balloon can be expanded by sending gas or gas and low-concentration stucco into the balloon. China National Standard (CNS) A4 Specification (210X297 mm) 477987 A7 _ _ B7 V. Invention Description (24) (Please read the notes on the back before filling this page) According to the above embodiments, you can provide: When the atomic furnace building is moved out of the RPV, the operation time can be shortened and the number of containers used can be reduced. In addition, by moving the pipes or structures connected to the RPV out of the R P V atomic furnace building in parallel with the RPV, the time required for removing the pipes or the structure can be shortened. In addition, by using the RPV as a container at the time of carrying out, the number of storage containers required when the piping or the structure is taken out of the atomic furnace building can be reduced, and the storage operation and the pollution inspection of the storage container can be reduced. The operation time of the operation is shortened. In addition, by reducing the number of storage containers, it is possible to reduce the time and storage space required to transport the storage containers to the storage place. By doing so, it is possible to shorten the duration of the R P V replacement operation, and to shorten the downtime of the nuclear power plant where the R P V replacement operation is performed. In addition, it is possible to reduce the cost of transportation and storage of the waste that is cut off from the piping or structure to be removed. The above-mentioned embodiments are printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. Although the above-mentioned embodiments are described as applying the present invention to the removal operation of RPV replacement constructions, they can also be applied to the radiationized nuclear power plants that become decommissioned nuclear power plants. Unloading of large machines (including RPV). In addition, although the above-mentioned embodiments are applicable to the replacement of the RPV of the BWR with the RPV, the replacement of the atomic furnace container of the pressurized water type atomic furnace (hereinafter, PWR) with the atomic furnace container and the PWR steam generator Replacement is also applicable. Brief description of the drawing The paper size applies the Chinese National Standard (CNS) A4 specification (210 X297 mm) _ 27-477987 A7 _ B7 V. Description of the invention (25) Figure 1 (a) shows the removal of Example 1 Sequence flow chart. (Please read the precautions on the back before filling this page) Figure 1 (b) is a detailed flowchart showing step S10 in Figure 1 (a). FIG. 1 (c) is a flowchart showing the carrying-out procedure of the second embodiment. . Fig. 2 is a sectional view of the atomic furnace building of the first embodiment. Fig. 3 is a sectional view of an atomic furnace storage container of the first embodiment. Fig. 4 is a sectional view of R P V in the first embodiment. FIG. 5 (a) is a diagram showing a state where the fuel assembly is taken out in step S3 of FIG. 1 (a). . Fig. 5 (b) shows a state in which the above-mentioned grid plate is vertically placed on the upper part of the hearth partition (shroud). Fig. 5 (c) shows a state in which the grid plate is placed vertically on the upper part of the shroud. Fig. 6 is a diagram showing a state in which waste is moved into the furnace. Fig. 7 is a diagram showing a state in which the piping is moved into the furnace. Fig. 8 (a) is a diagram showing a state where the pipes are moved into the furnace. Fig. 8 (b) is a diagram showing a state where the pipes are moved into the furnace. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. Figure 9 is a state diagram showing the return of the upper grid plate to the horizontal state of the upper part of the hearth partition. Fig. 10 is a diagram showing a state where the inlet pipe of the recirculation system is cut and inserted into the furnace. Figure 11 shows the state of cutting off the recirculation outlet pipe and inserting it into the furnace. . Figure 12 is a diagram showing a state where the R p v drainage pipe is cut off. -28- This paper size is in use. National Standard (CNS) A4 specification (210X297 mm) 477987 A7 B7 V. Description of the invention (26) Figure 13 shows a state diagram where the shielding body is temporarily placed on R s w. Fig. 14 is a diagram showing a state where R p V and the shielding body are carried out from the opening. Fig. 15 is a diagram showing a state in which R p V and a shield are moved into a storage room. Fig. 16 is a view showing a state of openings in the above-mentioned grid plate. Fig. 17 is a view showing a state in which waste is accommodated on the upper side of the upper grid plate. . Fig. 18 (a) is a diagram showing a state where a balloon is inserted at the nozzle inlet for sealing water. Fig. 18 (b) is a diagram showing a state where the balloon inserted into the nozzle inlet is inflated, and the sealed piping is cut, and a closing plug is installed in the nozzle. Figure 19 is a diagram showing the state of the crane installed outside the atomic furnace building. Figure 20 is a diagram showing the state of the chimeric shielding body in r p v. Fig. 21 is a view showing a state where the shield body and the maintenance plate are sealed with r p V. Fig. 22 is a diagram showing a state where the furnace core measuring pipe is cut off. Comparison of main components 2 Structures in the furnace 3 Steam dryer 4 Soda separator and partition head 5 Hearth partition This paper size applies to Chinese National Standard (CNS) A4 (210X297 mm) _ 29-(Please read the back first Please pay attention to this page and fill in this page) Order Printed by the Consumers' Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 477987 A7 B7 V. Invention Description (27) 6 Furnace Support Plate 7 Upper Lattice Plate 8 Jet Pump 9 Main Steam Nozzle 1 〇Water Supply Nozzle 1 1 Furnace core spraying nozzle 1 2 Recirculating in □ Nozzle 1 3 Recirculating P nozzle 1 4 Furnace measuring nozzle 1 8 RPV base 3 〇PCV stabilizer 3 1 Atomic furnace building 8 1 Machine storage tank (please first Read the notes on the back and fill in this page) The paper size printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economy applies the Chinese National Standard (CNS) A4 (210 X297 mm) _ 30-