本(ben)發明涉及(ji)汽輪機(ji)低壓(ya)(ya)內缸(gang)，具體地講是一種汽輪機(ji)落地低壓(ya)(ya)內缸(gang)結構。

背景技術：

傳統低壓(ya)(ya)(ya)缸(gang)(gang)布置方式為內缸(gang)(gang)坐落(luo)在外缸(gang)(gang)上。一方面(mian)，由于低壓(ya)(ya)(ya)外缸(gang)(gang)為鋼板焊(han)接結構，汽缸(gang)(gang)剛(gang)性較差，機(ji)組(zu)長久運(yun)行后容(rong)易產(chan)(chan)生(sheng)變形(xing)；另一方面(mian)，內缸(gang)(gang)坐落(luo)在外缸(gang)(gang)上，由于真空(kong)力和外缸(gang)(gang)受熱膨脹的影響，都會(hui)使(shi)低壓(ya)(ya)(ya)內缸(gang)(gang)中心產(chan)(chan)生(sheng)偏移，導致機(ji)組(zu)動靜間隙(xi)發生(sheng)不規律改(gai)變，影響機(ji)組(zu)運(yun)行的穩(wen)定(ding)性及(ji)安全(quan)性。

技術實現要素：

本發明的目的是為了(le)解決上述技術問題，提供一種汽輪(lun)機(ji)落地低壓內缸結構(gou)，該落地布(bu)置結構(gou)提高了(le)低壓內缸支(zhi)撐剛性(xing)和減小了(le)運(yun)行(xing)時的變形，增強了(le)穩定(ding)性(xing)，避免了(le)機(ji)組(zu)運(yun)行(xing)過程中，外缸對低壓內缸中心的影響(xiang)，提高了(le)汽輪(lun)機(ji)機(ji)組(zu)運(yun)行(xing)的安全性(xing)。

實現本發明(ming)的技術方案是(shi)：一種汽輪機落(luo)地低壓(ya)(ya)內(nei)缸(gang)(gang)結(jie)構(gou)，其(qi)特(te)征在(zai)于(yu)：包括(kuo)支(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)結(jie)構(gou)、縱向(xiang)及橫(heng)向(xiang)滑(hua)銷(xiao)裝置(zhi)、低壓(ya)(ya)內(nei)缸(gang)(gang)下半(ban)中(zhong)分(fen)面(mian)法蘭(lan)、前(qian)(qian)貓(mao)(mao)爪(zhua)(zhua)和(he)(he)(he)后(hou)貓(mao)(mao)爪(zhua)(zhua)；所(suo)(suo)述(shu)支(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)結(jie)構(gou)包括(kuo)低壓(ya)(ya)內(nei)缸(gang)(gang)前(qian)(qian)端的兩(liang)(liang)個(ge)前(qian)(qian)支(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)座(zuo)(zuo)和(he)(he)(he)后(hou)端的兩(liang)(liang)個(ge)后(hou)支(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)座(zuo)(zuo)；所(suo)(suo)述(shu)前(qian)(qian)、后(hou)支(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)座(zuo)(zuo)支(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)于(yu)汽輪機運行(xing)平臺的基礎上(shang)；所(suo)(suo)述(shu)低壓(ya)(ya)內(nei)缸(gang)(gang)下半(ban)中(zhong)分(fen)面(mian)法蘭(lan)伸出兩(liang)(liang)個(ge)前(qian)(qian)貓(mao)(mao)爪(zhua)(zhua)和(he)(he)(he)兩(liang)(liang)個(ge)后(hou)貓(mao)(mao)爪(zhua)(zhua)，分(fen)別與兩(liang)(liang)個(ge)前(qian)(qian)支(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)座(zuo)(zuo)和(he)(he)(he)兩(liang)(liang)個(ge)后(hou)支(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)座(zuo)(zuo)搭接；所(suo)(suo)述(shu)縱向(xiang)滑(hua)銷(xiao)裝置(zhi)布(bu)置(zhi)在(zai)低壓(ya)(ya)內(nei)缸(gang)(gang)前(qian)(qian)、后(hou)下部的定位鍵和(he)(he)(he)定位臂上(shang)；所(suo)(suo)述(shu)橫(heng)向(xiang)滑(hua)銷(xiao)裝置(zhi)布(bu)置(zhi)在(zai)低壓(ya)(ya)內(nei)缸(gang)(gang)前(qian)(qian)貓(mao)(mao)爪(zhua)(zhua)和(he)(he)(he)前(qian)(qian)支(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)座(zuo)(zuo)上(shang)。

所述前支撐(cheng)座包括前支撐(cheng)臂、埋件、地腳螺栓和(he)基架；所述前支撐(cheng)臂前端有滑(hua)槽。

所述(shu)后支撐座包(bao)括后支撐臂(bei)、埋件(jian)、地腳螺(luo)栓和基(ji)架；所述(shu)后支撐臂(bei)前端有小平臺。

所述橫向滑銷裝置(zhi)由前(qian)支撐(cheng)座上的前(qian)支撐(cheng)臂(bei)前(qian)端滑槽與前(qian)貓(mao)爪(zhua)配(pei)合構成。

所述(shu)兩個前(qian)貓(mao)爪(zhua)和(he)兩個后(hou)貓(mao)爪(zhua)，分別與兩個前(qian)支撐(cheng)座和(he)兩個后(hou)支撐(cheng)座的搭接部位(wei)，均位(wei)于導流(liu)環(huan)后(hou)方(fang)。

所(suo)述后貓(mao)爪(zhua)搭接在(zai)后支撐(cheng)座上(shang)(shang)的(de)后支撐(cheng)臂(bei)前端的(de)小平臺上(shang)(shang)，使其在(zai)小平臺上(shang)(shang)任(ren)意(yi)方向滑動。

所述縱向(xiang)滑銷(xiao)裝置(zhi)包(bao)括在汽輪機運行平臺的(de)基(ji)(ji)礎底部埋入的(de)定(ding)(ding)位(wei)(wei)裝置(zhi)，該定(ding)(ding)位(wei)(wei)裝置(zhi)的(de)定(ding)(ding)位(wei)(wei)臂伸入低(di)壓內(nei)缸基(ji)(ji)礎開孔內(nei)，其前(qian)端設(she)置(zhi)豎直方向(xiang)凸鍵(jian)(jian)，與低(di)壓內(nei)缸底部的(de)定(ding)(ding)位(wei)(wei)鍵(jian)(jian)槽配合。

所述縱向滑銷裝置與低壓內缸的搭接部位(wei)(wei)位(wei)(wei)于導(dao)流環后方。

本發明的(de)有益效(xiao)果是：

1、本發明(ming)落地布置結(jie)構提(ti)高(gao)了低壓內缸支(zhi)撐(cheng)剛性和減小了運(yun)行(xing)時的變形(xing)，增(zeng)強了穩定(ding)性，避免了機組運(yun)行(xing)過程(cheng)中，外缸對低壓內缸中心(xin)的影(ying)響，提(ti)高(gao)了汽輪機機組運(yun)行(xing)的安全性。

附圖說明

圖(tu)1為本發明實施(shi)例結構示意圖(tu)；

圖(tu)2為本發(fa)明實施例縱向滑銷(xiao)裝置(zhi)結構示意圖(tu)；

圖3為(wei)本(ben)發明實施例低(di)壓內缸結(jie)構(gou)示意圖；

圖4為本發明實施例橫向(xiang)滑銷裝(zhuang)置結構示意圖；

圖5為本發(fa)明實施例前支撐(cheng)座結構(gou)示意圖；

圖(tu)6為本發明實施例后(hou)支(zhi)撐座結構示意圖(tu)。

圖中(zhong)(zhong)標號(hao)：1—低壓內缸，2—前(qian)(qian)支撐(cheng)座(zuo)，3—后(hou)支撐(cheng)座(zuo)，4—定(ding)位臂(bei)，5—導流環，6—基礎，7—中(zhong)(zhong)分(fen)面法(fa)蘭，8—前(qian)(qian)貓爪，9—后(hou)貓爪，10—定(ding)位鍵(jian)，11—前(qian)(qian)支撐(cheng)臂(bei)，12—埋件，13—地腳(jiao)螺栓，14—基架，15—滑槽，16—后(hou)支撐(cheng)臂(bei)，17—小平臺。

具體實施方式

如(ru)圖1至圖6所(suo)(suo)示：一種(zhong)汽輪(lun)機(ji)落地低(di)(di)壓(ya)(ya)內(nei)(nei)(nei)(nei)缸結構(gou)，包(bao)括(kuo)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)結構(gou)、縱(zong)(zong)向(xiang)(xiang)(xiang)(xiang)及橫(heng)向(xiang)(xiang)(xiang)(xiang)滑(hua)(hua)銷裝(zhuang)(zhuang)置(zhi)(zhi)、低(di)(di)壓(ya)(ya)內(nei)(nei)(nei)(nei)缸1下半(ban)中分(fen)面法(fa)蘭7、前(qian)(qian)(qian)(qian)(qian)貓(mao)爪(zhua)(zhua)8和后(hou)(hou)(hou)貓(mao)爪(zhua)(zhua)9；所(suo)(suo)述(shu)(shu)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)結構(gou)包(bao)括(kuo)低(di)(di)壓(ya)(ya)內(nei)(nei)(nei)(nei)缸前(qian)(qian)(qian)(qian)(qian)端(duan)的(de)兩個(ge)(ge)前(qian)(qian)(qian)(qian)(qian)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)座(zuo)(zuo)(zuo)(zuo)(zuo)2和后(hou)(hou)(hou)端(duan)的(de)兩個(ge)(ge)后(hou)(hou)(hou)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)座(zuo)(zuo)(zuo)(zuo)(zuo)3；所(suo)(suo)述(shu)(shu)前(qian)(qian)(qian)(qian)(qian)、后(hou)(hou)(hou)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)座(zuo)(zuo)(zuo)(zuo)(zuo)2、3支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)于(yu)汽輪(lun)機(ji)運行平臺的(de)基(ji)礎6上(shang)；所(suo)(suo)述(shu)(shu)低(di)(di)壓(ya)(ya)內(nei)(nei)(nei)(nei)缸下半(ban)中分(fen)面法(fa)蘭7伸出兩個(ge)(ge)前(qian)(qian)(qian)(qian)(qian)貓(mao)爪(zhua)(zhua)8和兩個(ge)(ge)后(hou)(hou)(hou)貓(mao)爪(zhua)(zhua)9，分(fen)別與兩個(ge)(ge)前(qian)(qian)(qian)(qian)(qian)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)座(zuo)(zuo)(zuo)(zuo)(zuo)2和兩個(ge)(ge)后(hou)(hou)(hou)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)座(zuo)(zuo)(zuo)(zuo)(zuo)3搭(da)接；所(suo)(suo)述(shu)(shu)縱(zong)(zong)向(xiang)(xiang)(xiang)(xiang)滑(hua)(hua)銷裝(zhuang)(zhuang)置(zhi)(zhi)布(bu)置(zhi)(zhi)在(zai)低(di)(di)壓(ya)(ya)內(nei)(nei)(nei)(nei)缸1前(qian)(qian)(qian)(qian)(qian)、后(hou)(hou)(hou)下部(bu)(bu)的(de)定位(wei)(wei)(wei)(wei)(wei)鍵(jian)10和定位(wei)(wei)(wei)(wei)(wei)臂(bei)(bei)(bei)(bei)4上(shang)；所(suo)(suo)述(shu)(shu)橫(heng)向(xiang)(xiang)(xiang)(xiang)滑(hua)(hua)銷裝(zhuang)(zhuang)置(zhi)(zhi)布(bu)置(zhi)(zhi)在(zai)低(di)(di)壓(ya)(ya)內(nei)(nei)(nei)(nei)缸1前(qian)(qian)(qian)(qian)(qian)貓(mao)爪(zhua)(zhua)8和前(qian)(qian)(qian)(qian)(qian)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)座(zuo)(zuo)(zuo)(zuo)(zuo)2上(shang)。所(suo)(suo)述(shu)(shu)前(qian)(qian)(qian)(qian)(qian)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)座(zuo)(zuo)(zuo)(zuo)(zuo)2包(bao)括(kuo)前(qian)(qian)(qian)(qian)(qian)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)臂(bei)(bei)(bei)(bei)11、埋(mai)件(jian)(jian)12、地腳(jiao)螺(luo)栓(shuan)13和基(ji)架(jia)14；所(suo)(suo)述(shu)(shu)前(qian)(qian)(qian)(qian)(qian)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)臂(bei)(bei)(bei)(bei)11前(qian)(qian)(qian)(qian)(qian)端(duan)有滑(hua)(hua)槽(cao)15。所(suo)(suo)述(shu)(shu)后(hou)(hou)(hou)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)座(zuo)(zuo)(zuo)(zuo)(zuo)3包(bao)括(kuo)后(hou)(hou)(hou)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)臂(bei)(bei)(bei)(bei)16、埋(mai)件(jian)(jian)12、地腳(jiao)螺(luo)栓(shuan)13和基(ji)架(jia)14；所(suo)(suo)述(shu)(shu)后(hou)(hou)(hou)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)臂(bei)(bei)(bei)(bei)16前(qian)(qian)(qian)(qian)(qian)端(duan)有小(xiao)(xiao)平臺17。所(suo)(suo)述(shu)(shu)橫(heng)向(xiang)(xiang)(xiang)(xiang)滑(hua)(hua)銷裝(zhuang)(zhuang)置(zhi)(zhi)由前(qian)(qian)(qian)(qian)(qian)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)座(zuo)(zuo)(zuo)(zuo)(zuo)2上(shang)的(de)前(qian)(qian)(qian)(qian)(qian)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)臂(bei)(bei)(bei)(bei)11前(qian)(qian)(qian)(qian)(qian)端(duan)滑(hua)(hua)槽(cao)15與前(qian)(qian)(qian)(qian)(qian)貓(mao)爪(zhua)(zhua)8配合構(gou)成。所(suo)(suo)述(shu)(shu)兩個(ge)(ge)前(qian)(qian)(qian)(qian)(qian)貓(mao)爪(zhua)(zhua)8和兩個(ge)(ge)后(hou)(hou)(hou)貓(mao)爪(zhua)(zhua)9，分(fen)別與兩個(ge)(ge)前(qian)(qian)(qian)(qian)(qian)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)座(zuo)(zuo)(zuo)(zuo)(zuo)2和兩個(ge)(ge)后(hou)(hou)(hou)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)座(zuo)(zuo)(zuo)(zuo)(zuo)3的(de)搭(da)接部(bu)(bu)位(wei)(wei)(wei)(wei)(wei)，均位(wei)(wei)(wei)(wei)(wei)于(yu)導流環(huan)5后(hou)(hou)(hou)方(fang)，這種(zhong)布(bu)置(zhi)(zhi)不僅可(ke)以減小(xiao)(xiao)對排汽的(de)影響，還可(ke)以保護滑(hua)(hua)銷系統不受汽流的(de)沖蝕。所(suo)(suo)述(shu)(shu)后(hou)(hou)(hou)貓(mao)爪(zhua)(zhua)9搭(da)接在(zai)后(hou)(hou)(hou)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)座(zuo)(zuo)(zuo)(zuo)(zuo)3上(shang)的(de)后(hou)(hou)(hou)支(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)臂(bei)(bei)(bei)(bei)16前(qian)(qian)(qian)(qian)(qian)端(duan)的(de)小(xiao)(xiao)平臺17上(shang)，使(shi)其在(zai)小(xiao)(xiao)平臺17上(shang)任意方(fang)向(xiang)(xiang)(xiang)(xiang)滑(hua)(hua)動。所(suo)(suo)述(shu)(shu)縱(zong)(zong)向(xiang)(xiang)(xiang)(xiang)滑(hua)(hua)銷裝(zhuang)(zhuang)置(zhi)(zhi)包(bao)括(kuo)在(zai)汽輪(lun)機(ji)運行平臺的(de)基(ji)礎6底部(bu)(bu)埋(mai)入的(de)定位(wei)(wei)(wei)(wei)(wei)裝(zhuang)(zhuang)置(zhi)(zhi)，該定位(wei)(wei)(wei)(wei)(wei)裝(zhuang)(zhuang)置(zhi)(zhi)的(de)定位(wei)(wei)(wei)(wei)(wei)臂(bei)(bei)(bei)(bei)4伸入低(di)(di)壓(ya)(ya)內(nei)(nei)(nei)(nei)缸基(ji)礎6開(kai)孔內(nei)(nei)(nei)(nei)，其前(qian)(qian)(qian)(qian)(qian)端(duan)設置(zhi)(zhi)豎(shu)直方(fang)向(xiang)(xiang)(xiang)(xiang)凸鍵(jian)，與低(di)(di)壓(ya)(ya)內(nei)(nei)(nei)(nei)缸1底部(bu)(bu)的(de)定位(wei)(wei)(wei)(wei)(wei)鍵(jian)10配合。

技術特征：

技術總結
本發明公開了一種汽輪機落地低壓內缸結構，包括支撐結構、縱向及橫向滑銷裝置、低壓內缸下半中分面法蘭、前貓爪和后貓爪；所述支撐結構包括低壓內缸前端的兩個前支撐座和后端的兩個后支撐座；所述前、后支撐座支撐于汽輪機運行平臺的基礎上；所述低壓內缸下半中分面法蘭伸出兩個前貓爪和兩個后貓爪，分別與兩個前支撐座和兩個后支撐座搭接；所述縱向滑銷裝置布置在低壓內缸前、后下部的定位鍵和定位臂上；所述橫向滑銷裝置布置在低壓內缸前貓爪和前支撐座上。該落地布置結構提高了低壓內缸支撐剛性和減小了運行時的變形，增強了穩定性，避免了機組運行過程中，外缸對低壓內缸中心的影響，提高了汽輪機機組運行的安全性。

技術研發人員：謝峰;劉興波;陳利;袁朝興;高進;黃果;趙衛軍;鄧宇;周華;尹瑞云;徐志輝;金亮;伍文華;彭國偉;趙琦;趙贊
受保護的技術使用者：東方電氣集團東方汽輪機有限公司
技術研發日：2017.07.21
技術公布日：2017.09.29