RM新时代|官网产品

項目名稱(chēng)：500MW沖擊式水輪機轉輪輪轂及配套水斗鍛件（runner and bucket forgings for 500MW impulse turbine ）

研制單位:中國第一重型機械股份公司(China First Heavy Machinery Co., Ltd)

研制單位網(wǎng)址: https://www.cfhi.com/

首次投運時(shí)間:2023年11月

聯(lián)系人:芮守泰，15022397190，ruishoutai@163.com

水輪機整體轉輪由轉輪輪轂和水斗兩部分通過(guò)焊接組合而成。500MW轉輪輪轂鍛件采用了300噸級馬氏體不銹鋼鋼錠，鍛造毛坯重量超過(guò)150噸、外圓直徑近5米、最大厚度約1.2米，成品輪轂鍛件重量達到105噸，是目前世界最大規格的馬氏體不銹鋼轉輪鍛件，也是目前唯一的交貨重量超百?lài)嵉乃姴讳P鋼整體鍛件。扎拉轉輪模鍛水斗鍛件的毛坯重量超過(guò)3噸，壁厚跨度30至300毫米，斗寬約1.3米，鍛件形狀復雜系數達S4級以上，屬于大型深腔復雜曲面馬氏體不銹鋼鍛件，整體仿形鍛造難度非常大。

轉輪輪轂和水斗鍛件的技術(shù)水平在一定程度上代表了500MW沖擊式水輪發(fā)電機組的整體技術(shù)水平。500MW沖擊式水輪機組是展現國家能源裝備制造實(shí)力，再次用世界一流的水電技術(shù)問(wèn)鼎世界水電之巔的一次重大機遇與挑戰。將實(shí)現全產(chǎn)業(yè)鏈的完全自主知識產(chǎn)權國產(chǎn)化，大幅提高我國在巨型沖擊式水電機組方面的研發(fā)、制造水平。

上圖：世界最大沖擊式機組全尺寸不銹鋼轉輪輪轂及水斗鍛件完工儀式

左圖：500MW水斗鍛件                                                    右圖：500MW水斗鍛件

THE RUNNER AND BUCKET FORGINGS FOR 500MW IMPULSE TURBINE IS THE WORLD'S LARGEST RUNNER AND BUCKET FORGINGS FOR IMPULSE  TURBINE (WITH DIAMETER 4.72M, HEIGHT 1M, WEIGHT 270T).

The integral runner of a hydraulic turbine is composed of the runner hub and buckets through welding. The 500MW runner hub forging adopts a 300-ton martensitic stainless steel ingot. The forged blank of the 500MW runner hub weighs over 150 tons, with an outer diameter of nearly 5 meters and a maximum thickness of about 1.2 meters. The finished hub forging weighs 105 tons.It is currently the largest martensitic stainless steel runner forging in the world and also the only hydropower stainless steel integral forging with a delivery weight exceeding 100 tons. The blank weight of the die-forged bucket forging of the Zala runner exceeds 3 tons. The wall thickness span is from 30 to 300 millimeters, and the bucket width is about 1.3 meters. The forging shape complexity coefficient is above S4 level. It belongs to a large-scale deep-cavity complex curved surface martensitic stainless steel forging. The overall profile forging is extremely difficult.

To a certain extent, the technical level of runner hub and bucket forgings represents the overall technical level of 500MW impulse hydro-generator sets. The 500MW impulse hydro-generator set is a major opportunity and challenge to demonstrate the manufacturing strength of national energy equipment and once again reach the top of the world's hydropower with world-class hydropower technology. It will realize the localization of complete independent intellectual property rights of the whole industrial chain and greatly improve China's research and development and manufacturing level in giant impulse hydro-generator sets.