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世界上起重量最大（20000t）的橋式起重機

——2023年重型機械世界之最科技成果獲獎項目專(zhuān)題報道

設備/技術(shù)名稱(chēng)：20000t×125m多吊點(diǎn)橋式起重裝備

研制單位：大連華銳重工集團股份有限公司  www.dhidcw.com

首次投運時(shí)間：2008年1月

聯(lián)系人：祝馨筠，13322215837  ，zhuxjb@dhidcw.com

2萬(wàn)噸多吊點(diǎn)起重裝備主要擔負船塢作業(yè)范圍內的平臺起升、對接工作。設有12套卷?yè)P機構、48個(gè)吊點(diǎn)，分別布置在兩根主梁下方。其中靠近塢門(mén)側主梁上卷?yè)P起升高度113m；另一側主梁上卷?yè)P起升高度83m，為滿(mǎn)足不同設備吊點(diǎn)位置的不同，該主梁還具有水平橫移±7m的功能。該設備跨度125m，主梁高度18m、寬度4.8m。

該起重機是當今起重量最大的橋式起重設備，多項核心技術(shù)為世界首創(chuàng )：首創(chuàng )了第一個(gè)高低梁橋式起重機，并采用了超大型復合式主梁結構，最大限度減輕自重；發(fā)明了主梁平移機構專(zhuān)利技術(shù)；首創(chuàng )了大倍率起升機構效率補償裝置；自主開(kāi)發(fā)多起升機構電氣控制軟件；首創(chuàng )超大主梁分段陸地制造、水中駁船上整體合攏焊接技術(shù)。

該設備用于煙臺中集來(lái)福士海洋工程有限公司，能夠實(shí)現2萬(wàn)噸以?xún)群Ｑ笃脚_整體一次性平穩吊裝，改變了傳統海洋平臺塢內小分段制造工藝，單次吊裝可節省約200萬(wàn)個(gè)工時(shí)，建造周期縮短30%，降低了制造成本。

上圖：吊裝鉆井平臺

下圖：交機現場(chǎng)帶載荷吊裝

The world's largest overhead crane by lifting capacity (20,000 tons)

20000t×125m multiple hanging point crane

DALIAN HUARUI HEAVY INDUSTRY GROUP CO.,LTD

www.dhidcw.com

The 20000tmultiple hanging point crane is mainly responsible for the platform lifting and docking work within the scope of dock operation. There are 12 sets of hoist structures and 48 lifting points, which are arranged under the two main beams. Among them, the main beam near the dock gate is raised up with beam also has the function of horizontal and transverse movement of ±7m. The span of the equipment is 125m, the height of the main beam is 18m, and the wider is 4.8m.

The crane is the largest lifting weight of the bridge lifting equipment, a number of core technologies for the world’s first: the first high and low beam bridge crane, and the use of large composite main beam structure, minimize the weight; Invented the main beam translation mechanism patent technology; The efficiency compensation device of large rate lifting mechanism was first developed. Independent development of multiple lifting mechanism electrical control software; First large main beam segment on land manufacturing ,water barge on the whole closing welding technology.

The equipment is used in Yantai CIMC Raffles Marine Engineering Co.,LTD., which can achieve a one-time and stable lifting of the entire offshore platform within 20000t, changing the traditional offshore platform dock small segment manufacturing process, a single lifting can save about 2 million hours, shorten the construction cycle by 30%, and reduce the manufacturing cost.