文章來源：國(guo)家電(dian)網公司 發布時間：2016-10-30
10月26日，由中國電科院牽(qian)頭的(de)國家(jia)電網公(gong)司科技項(xiang)目(mu)“特高壓大型組(zu)塔裝備的(de)優(you)化技術(shu)研(yan)究”順(shun)利通(tong)過驗收。驗收專(zhuan)家(jia)一(yi)致認為(wei)，項(xiang)目(mu)完成(cheng)了(le)合同規定的(de)研(yan)究內容，同意項(xiang)目(mu)通(tong)過驗收，項(xiang)目(mu)成(cheng)果可全面應用于(yu)特高壓工程建設，將為(wei)提(ti)高我國輸電線(xian)路組(zu)塔施工技術(shu)水平提(ti)供技術(shu)保證(zheng)。
長期以來，系列化(hua)單(dan)動臂落地(di)抱(bao)桿(gan)和(he)雙(shuang)平(ping)臂落地(di)抱(bao)桿(gan)等大(da)型(xing)組(zu)塔(ta)施(shi)(shi)(shi)工(gong)裝(zhuang)備(bei)已(yi)經成功應(ying)用于特(te)高(gao)壓(ya)工(gong)程建設，具有安(an)全保護裝(zhuang)置齊全、施(shi)(shi)(shi)工(gong)安(an)全性高(gao)等特(te)點(dian)，但抱(bao)桿(gan)部分部件單(dan)件重(zhong)(zhong)量偏(pian)重(zhong)(zhong)，在地(di)形條件復雜、施(shi)(shi)(shi)工(gong)環境(jing)惡劣的(de)現場進行(xing)安(an)裝(zhuang)、組(zu)立、拆卸、轉場較為(wei)困(kun)難，而且現有鐵(tie)塔(ta)組(zu)立施(shi)(shi)(shi)工(gong)技術標準不能(neng)完全反(fan)映大(da)型(xing)落地(di)抱(bao)桿(gan)組(zu)塔(ta)的(de)技術及工(gong)藝(yi)特(te)點(dian)。因此，工(gong)程所結合工(gong)程實(shi)際需求，開展了適(shi)用于特(te)高(gao)壓(ya)工(gong)程的(de)單(dan)動臂、雙(shuang)平(ping)臂落地(di)抱(bao)桿(gan)的(de)優化(hua)技術研(yan)究及其組(zu)塔(ta)施(shi)(shi)(shi)工(gong)、安(an)裝(zhuang)與驗(yan)收工(gong)藝(yi)研(yan)究。
項目基于SXD50單動(dong)(dong)臂落(luo)地(di)抱(bao)桿回(hui)轉總成的(de)(de)結(jie)構(gou)特點(dian)及功能，提(ti)出(chu)了(le)單動(dong)(dong)臂落(luo)地(di)抱(bao)桿回(hui)轉上支座的(de)(de)凹槽式(shi)結(jie)構(gou)優(you)(you)化設計，減重19%；針對SXD50落(luo)地(di)抱(bao)桿提(ti)出(chu)了(le)平(ping)行四邊形結(jie)構(gou)的(de)(de)可搖(yao)動(dong)(dong)平(ping)衡(heng)臂，可實現抱(bao)桿桿身的(de)(de)后傾力矩與工(gong)(gong)(gong)(gong)作(zuo)前傾力矩平(ping)衡(heng)；提(ti)出(chu)了(le)T2T100雙平(ping)臂落(luo)地(di)抱(bao)桿結(jie)構(gou)優(you)(you)化方(fang)案(an)及施(shi)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝優(you)(you)化方(fang)案(an)，可有(you)效減少施(shi)工(gong)(gong)(gong)(gong)人員勞動(dong)(dong)強(qiang)度，增強(qiang)裝備(bei)的(de)(de)工(gong)(gong)(gong)(gong)程(cheng)適(shi)用性(xing)。項目完成了(le)《單動(dong)(dong)臂落(luo)地(di)抱(bao)桿安裝及驗收規(gui)程(cheng)》等4項標(biao)準報(bao)批稿，可規(gui)范大(da)型鐵塔的(de)(de)組立施(shi)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝，提(ti)高(gao)施(shi)工(gong)(gong)(gong)(gong)安全(quan)性(xing)，更好地(di)滿足輸電(dian)線路組塔施(shi)工(gong)(gong)(gong)(gong)需求。
項目(mu)(mu)提出的常設式雙平臂(bei)收臂(bei)裝(zhuang)置(zhi)、回轉平臺結構優(you)化等技(ji)(ji)術已(yi)應(ying)用于T2T100、T2T80等雙平臂(bei)落(luo)地抱桿中(zhong)，并在(zai)錫盟-山東特高(gao)壓交流工程中(zhong)進行了應(ying)用，有效減少了施工人員的高(gao)空作業，降低了施工強度，項目(mu)(mu)成果(guo)可廣(guang)泛應(ying)用于大型(xing)落(luo)地抱桿的優(you)化技(ji)(ji)術。