北京低背壓汽輪機(jī) **** 上海含商建設(shè)工程供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="汽輪機(jī)是一種以蒸汽為動力，并將蒸氣的熱能轉(zhuǎn)化為機(jī)械功的旋轉(zhuǎn)機(jī)械，北京低背壓汽輪機(jī)，是現(xiàn)代火力發(fā)電廠中應(yīng)用較普遍的原動機(jī)。汽輪機(jī)具有單機(jī)功率大、效率高、壽命長等優(yōu)點(diǎn)。沖動式汽輪機(jī)蒸汽主要在靜葉中膨脹，在動葉中只有少量的膨脹。反動式汽輪機(jī)蒸汽在"><meta name="keywords" content="北京低背壓汽輪機(jī),汽輪機(jī)"><link rel="canonical" href="http://m.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta 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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>北京低背壓汽輪機(jī),汽輪機(jī)</p><p><span>***更新：</span>2020-12-10 00:28:00</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="smjg3c9" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海含商建設(shè)工程有限公司</a></p><p><span>聯(lián)系人：</span>朱瑩</p><p><span>郵箱: </span>Irene_zy516@163.com</p><p><span>電話: </span>13918191286</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://shhanshang.shop.88360.com</p><p><span>手機(jī): </span>021-58210069</p><p><span>地址: </span>上海市崇明區(qū)新河鎮(zhèn)新申路921弄2號L區(qū)228室(上海富盛經(jīng)濟(jì)開發(fā)區(qū))</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="xldfhj3" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="uelifsp" class="box"><p><p style="text-indent:25px">汽輪機(jī)是一種以蒸汽為動力，并將蒸氣的熱能轉(zhuǎn)化為機(jī)械功的旋轉(zhuǎn)機(jī)械，北京低背壓汽輪機(jī)，是現(xiàn)代火力發(fā)電廠中應(yīng)用較普遍的原動機(jī)。汽輪機(jī)具有單機(jī)功率大、效率高、壽命長等優(yōu)點(diǎn)。沖動式汽輪機(jī)蒸汽主要在靜葉中膨脹，在動葉中只有少量的膨脹。反動式汽輪機(jī)蒸汽在靜葉和動葉中膨脹，而且膨脹程度相同。1200MW機(jī)組比800MW機(jī)組的千瓦造價低15%—20%，北京低背壓汽輪機(jī)，提高運(yùn)行經(jīng)濟(jì)性，如法國的600MW機(jī)組比國產(chǎn)的125MW機(jī)組的熱耗率低276kj/kW.h，每年可節(jié)約燃煤4萬噸。加快電網(wǎng)建設(shè)速度，滿足經(jīng)濟(jì)發(fā)展需要，北京低背壓汽輪機(jī)，提高電網(wǎng)的調(diào)峰能力。汽輪機(jī)按照工作原理分為沖動式汽輪機(jī)和反動式汽輪機(jī)。汽輪機(jī)汽缸上半可作為一個零件起吊。北京低背壓汽輪機(jī)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京低背壓汽輪機(jī),汽輪機(jī)" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408580615440117/1707729.png"></div><p style="text-indent:25px">汽輪機(jī)檢修加工會遇到哪些難題呢?平時廠家在針對汽輪機(jī)內(nèi)部結(jié)構(gòu)“口小肚子大”、加工空間小且軸承檔內(nèi)各尺寸精度要求高的問題：工件結(jié)構(gòu)，汽輪機(jī)為我公司設(shè)計的一款汽輪機(jī)，此臺汽輪機(jī)前汽缸為鑄件，前汽缸與前軸承座是通過下半的半圓坡口焊接連接，并且該工件總長有2m，內(nèi)徑小處*有φ 235mm，加工空間很小，而且軸承座各檔內(nèi)圓的尺寸精度要求很高，對于加工及檢驗測量是一個很大的挑戰(zhàn)。加工難點(diǎn)分析，在圖樣的消化過程中，我們發(fā)現(xiàn)了在汽輪機(jī)加工時可能出現(xiàn)的問題與難點(diǎn)如下：前汽缸與前軸承座通過下半的半圓坡口焊接連接，如何保障焊接精度？如何控制焊接變形量？前汽缸與前軸承座焊接完后整體工件長度有2m，其中前汽封小內(nèi)圓只有φ235mm，而軸承檔部分要將車刀穿過小內(nèi)圓來加工，軸承檔大內(nèi)圓為φ359mm，造成了“口小肚子大”的情況，而且軸承檔內(nèi)各尺寸精度要求很高，公差小處*為0.03mm。北京低背壓汽輪機(jī)汽輪機(jī)是能將蒸汽熱能轉(zhuǎn)化為機(jī)械功的外燃回轉(zhuǎn)式機(jī)械。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京低背壓汽輪機(jī),汽輪機(jī)" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408580227325007/1765774.png"></div><p style="text-indent:25px">造成汽輪機(jī)進(jìn)水的因素有哪些？主要因素：油中進(jìn)水是油質(zhì)劣化的重要因素之一，油中進(jìn)水后，如果油中含有機(jī)酸，會形成油渣，還會使油系統(tǒng)發(fā)生腐蝕的危險。油中進(jìn)水多半是汽輪機(jī)軸封的狀態(tài)不良或是發(fā)生磨損，軸封的進(jìn)汽過多所引起的。另外軸封汽回汽受阻，軸封高壓漏汽回汽不暢，軸承內(nèi)負(fù)壓太高等原因也往往直接構(gòu)成油中進(jìn)水。汽輪機(jī)的油中進(jìn)水是造成機(jī)器損壞的重要因素。解決：為防止油中進(jìn)水，除了在運(yùn)行中冷油器水側(cè)壓力應(yīng)低于油側(cè)壓力外，還應(yīng)精心調(diào)整各軸封的進(jìn)汽量，防止油中進(jìn)水。</p><p style="text-indent:25px">汽輪機(jī)在換油時如是冷油，先開機(jī)運(yùn)行2—3分鐘，換油時應(yīng)確保機(jī)組無壓力才可進(jìn)行。先拆開油氣分離桶注油螺母、用合適的容器準(zhǔn)備裝殘油，打開桶部下面的排油閥，排油時時而用手正盤機(jī)頭皮帶輪以利將儲在機(jī)頭內(nèi)的油也排出。換上潤滑油，注油時時而用手反盤機(jī)頭皮帶輪以利將油吸入管道及機(jī)頭，汽輪機(jī)注油量在浸過油位鏡后再注入2~3cm，注好油后，裝上注油螺母并鎖緊，拆下進(jìn)氣閥，從機(jī)頭進(jìn)氣口注入少量潤滑油，油量在浸沒轉(zhuǎn)子的三分之二處即可，裝上進(jìn)氣閥。各級裝在一個汽缸內(nèi)的單缸汽輪機(jī)，和各級分裝在幾個汽缸內(nèi)的多缸汽輪機(jī)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京低背壓汽輪機(jī),汽輪機(jī)" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408580329873773/4289546.png"></div><p style="text-indent:25px">汽輪機(jī)的維修改造不需要分解拆卸調(diào)節(jié)和潤滑油管路，避免以后產(chǎn)生節(jié)流閥重調(diào)，污染物泄漏；起吊上缸時，應(yīng)檢測核實全體中的分面螺栓，并配好導(dǎo)柱，拆卸中對重要部件應(yīng)通過作標(biāo)記或備忘錄或事先作好記錄，為以后復(fù)原作好準(zhǔn)備。拆開設(shè)備時汽輪機(jī)的維修改造對任何磨損和積垢情況要特別注意，如在密封面表面發(fā)現(xiàn)泄漏痕跡，那就必須對配合面進(jìn)行檢查，用著色，壓鉛方法或塞尺檢查平面度和張口。葉片上積垢的部位要作準(zhǔn)確記錄，并對積垢取樣進(jìn)行化驗分析，以判定其成份，據(jù)此確定在何種狀態(tài)（運(yùn)轉(zhuǎn)或停機(jī)）用哪種方法（蒸汽沖洗或化學(xué)清洗）去除積垢。汽輪機(jī)在安裝時，上缸垂直結(jié)合面已用螺栓連成一體。山西發(fā)電汽輪機(jī)</p><p style="text-indent:25px">低壓汽輪機(jī)：主蒸汽壓力小于1.47Mpa。北京低背壓汽輪機(jī)</p><p style="text-indent:25px">汽輪機(jī)各部件與主軸之間采用過盈配合，以防止葉輪等因離心力及溫差作用引起松動，并用鍵傳遞力矩。中低壓汽輪機(jī)的轉(zhuǎn)子和高壓汽輪機(jī)的低壓轉(zhuǎn)子常采用套裝結(jié)構(gòu)。套裝轉(zhuǎn)子在高溫下，葉輪與主軸易發(fā)生松動。所以不宜作為高溫汽輪機(jī)的高壓轉(zhuǎn)子。整鍛轉(zhuǎn)子：葉輪、軸封套、聯(lián)軸節(jié)等部件與主軸是由一整鍛件削而成，無熱套部分，這解決了高溫下葉輪與軸連接容易松動的問題。這種轉(zhuǎn)子常用于大型汽輪機(jī)的高、中壓轉(zhuǎn)子。結(jié)構(gòu)緊湊，對啟動和變工況適應(yīng)性強(qiáng)，宜于高溫下運(yùn)行，轉(zhuǎn)子剛性好，但是鍛件大，加工工藝要求高，加工周期長，大鍛件質(zhì)量難以保證。北京低背壓汽輪機(jī)</p><p style="text-indent:25px">上海含商建設(shè)工程有限公司一直專注于市政公用工程，管道工程，機(jī)電設(shè)備安裝、維修（除特種設(shè)備），化工產(chǎn)品及原料（除危險化學(xué)品、監(jiān)控化學(xué)品、煙花爆竹、民用物品、易制毒化學(xué)品）、儀器儀表、五金交電、橡塑制品、建筑材料、裝潢材料、電子產(chǎn)品、日用百貨的銷售，機(jī)械設(shè)備技術(shù)領(lǐng)域內(nèi)的技術(shù)開發(fā)、技術(shù)轉(zhuǎn)讓、技術(shù)咨詢和技術(shù)服務(wù)。，是一家機(jī)械及行業(yè)設(shè)備的企業(yè)，擁有自己**的技術(shù)體系。目前我公司在職員工以90后為主，是一個有活力有能力有創(chuàng)新精神的團(tuán)隊。公司業(yè)務(wù)范圍主要包括：維修高壓主汽門、高壓調(diào)門，維修中壓主汽門、中壓調(diào)門，閥座的車削、堆焊、補(bǔ)焊，熱處理、研磨等。公司奉行顧客至上、質(zhì)量為本的經(jīng)營宗旨，深受客戶好評。公司深耕維修高壓主汽門、高壓調(diào)門，維修中壓主汽門、中壓調(diào)門，閥座的車削、堆焊、補(bǔ)焊，熱處理、研磨，正積蓄著更大的能量，向更廣闊的空間、更寬泛的領(lǐng)域拓展。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2335271.html</p></div></div></div></div></div><div id="lvn8bum" class="page-right twoColRt"><div id="smjbdvm" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="g7lsu7x" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img 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