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Chinese firm delivers self‑developed core casting for world's most powerful onshore wind turbine_我的网站

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    Core castings for the world's most powerful onshore wind turbine Photo: website of Science and Technology Daily
The core castings for the world's most powerful onshore wind turbine in terms of single‑unit capacity have recently been delivered by a Chinese company, marking a technological breakthrough in the large‑megawatt onshore wind power castings, domestic news portal stdaily.com affiliated with Science and Technology Daily reported on Wednesday.
Independently developed by Dalian Huarui Heavy Industry Group Co., Ltd. (DHHI), the delivered components include the bearing housing and base castings for 15 MW doubly fed onshore wind turbines. The components need to bear the huge gravity, wind loads and alternating loads transmitted from the blades and hub, and transfer the loads to the generator, ensuring steady rotation of the main shaft. 
The products passed all customer inspections and assessments in one go and were officially delivery, stdaily.com reported.
Adopting an advanced modular design, the turbine components delivered can support flexible power adjustment ranging from 13 MW to 16 MW, enabling adaptive operation to varying and complex wind conditions across diverse regions, the report said.
The turbine's rotor diameter ranges from 240 meters to 260 meters, and are compatible with tower heights of 135 meters to 190 meters, delivering a maximum swept area of 53,000 square meters, roughly 8 standard football pitchs (105m×68m). This places the unit's overall performance among the world's top-tier.
Such super-large castings place extremely high demand on material properties, casting processes, dimensional accuracy and internal quality. The successful validation and delivery of the products therefore demonstrate the research and development, as well as manufacturing capabilities in super‑large wind power castings, stdaily.com reported.
Global Times
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二 |     近日，辽宁大连，儿童公园内一只“求救鸭”引发网友关注。

三 | 　　因脖子上一圈白毛，这只鸭子被大家称为“白项链”。　　据媒体报道，“白项链”的食道内卡住了异物，于是它在步道上走来走去，似乎是在向路人“拦路”求助。后被热心市民送到宠物医院救治，食道内取出钢珠一枚。没想到，医生随后又在“白项链”头部发现和钢珠大小相等的孔洞……　　最终，“白项链”状态越来越差，因伤势过重去世。　　网友评论，“我本来以为它会变成网红鸭。好可惜，鸭鸭一路走好”“最遗憾的是他都求救了，人也帮助了”“求生欲很强的鸭鸭，可惜了”等等。　　（中国小康网综合都市快报、大皖新闻、网友评论）。

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Published on:12:38:13