LT-600型固定式夾層鍋設(shè)計(jì)【說明書+CAD+PROE】
LT-600型固定式夾層鍋設(shè)計(jì)【說明書+CAD+PROE】,說明書+CAD+PROE,LT-600型固定式夾層鍋設(shè)計(jì)【說明書+CAD+PROE】,lt,固定,夾層,設(shè)計(jì),說明書,仿單,cad,proe
畢業(yè)論文（設(shè)計(jì)）用紙
附錄1
鍋爐風(fēng)機(jī)的安裝
摘要：鍋爐燃燒離不開鍋爐的風(fēng)系統(tǒng)，風(fēng)系統(tǒng)包括二次風(fēng)系統(tǒng)、一次風(fēng)系統(tǒng)、掃描冷卻風(fēng)系統(tǒng)和爐頂密封風(fēng)系統(tǒng)。各系統(tǒng)的風(fēng)均有相應(yīng)的風(fēng)機(jī)提供。以南京蘇源熱電有限公司2×300MW機(jī)組工程#4鍋爐煙風(fēng)系統(tǒng)為例分別講述了AN軸流式吸風(fēng)機(jī)、FAF軸流式送風(fēng)機(jī)、離心風(fēng)機(jī)的安裝步驟。
關(guān)鍵字：鍋爐風(fēng)機(jī)作業(yè)方法
鍋爐的燃燒離不開鍋爐的風(fēng)系統(tǒng)，其風(fēng)系統(tǒng)包括二次風(fēng)系統(tǒng)、一次風(fēng)系統(tǒng)、掃描冷卻風(fēng)系統(tǒng)和爐頂密封風(fēng)系統(tǒng)。各系統(tǒng)的風(fēng)均有相應(yīng)的風(fēng)機(jī)提供，所以風(fēng)機(jī)安裝的好壞對(duì)鍋爐安全可靠的運(yùn)行有著密不可分的作用。
以南京蘇源熱電有限公司2×300MW機(jī)組工程風(fēng)機(jī)安裝作為例子來談?dòng)嘘P(guān)風(fēng)機(jī)的安裝步驟和有關(guān)事宜。
南京蘇源熱電有限公司2×300MW機(jī)組工程#4鍋爐煙風(fēng)系統(tǒng)安裝按平衡通風(fēng)設(shè)計(jì)，滿足一次風(fēng)機(jī)、送風(fēng)機(jī)、吸風(fēng)機(jī)在鍋爐低負(fù)荷工況或一側(cè)風(fēng)機(jī)故障時(shí)單側(cè)運(yùn)行，空預(yù)器進(jìn)出口煙風(fēng)道上均設(shè)有隔離門。送風(fēng)機(jī)采用50容量的動(dòng)葉可調(diào)軸流風(fēng)機(jī)兩臺(tái)，吸風(fēng)機(jī)采用靜葉可調(diào)軸流風(fēng)機(jī)兩臺(tái)，一次風(fēng)機(jī)采用50容量的定速單吸離心風(fēng)機(jī)兩臺(tái)。
制粉系統(tǒng)采用中速磨冷一次風(fēng)機(jī)正壓直吹式。其密封系統(tǒng)采用母管制的密封風(fēng)系統(tǒng)，每臺(tái)爐設(shè)2臺(tái)離心式密封風(fēng)機(jī)，一臺(tái)運(yùn)行，一臺(tái)為備用狀態(tài)。
施工任務(wù)是安裝南京蘇源熱電有限公司二期2×300MW機(jī)組#4鍋爐的送風(fēng)機(jī)、吸風(fēng)機(jī)、一次風(fēng)機(jī)、密封風(fēng)機(jī)。
其工程量為
動(dòng)葉可調(diào)軸流式送風(fēng)機(jī)兩臺(tái)，配套6KV大功率電動(dòng)機(jī)兩臺(tái)，配備液壓潤滑油站兩套；
靜葉可調(diào)軸流式吸風(fēng)機(jī)兩臺(tái)，配套6KV大功率電動(dòng)機(jī)兩臺(tái)；
單吸離心式一次風(fēng)機(jī)兩臺(tái)，配套6KV大功率電動(dòng)機(jī)兩臺(tái)；
單吸離心式密封風(fēng)機(jī)兩臺(tái)，配套380V電動(dòng)機(jī)兩臺(tái)；
根據(jù)施工圖紙要求：送風(fēng)機(jī)、吸風(fēng)機(jī)、一次風(fēng)機(jī)、磨煤機(jī)密封風(fēng)機(jī)都布置在鍋爐房零米層，送風(fēng)機(jī)對(duì)稱布置在爐架兩側(cè)預(yù)熱器冷空氣倉的位置，中心線與鍋爐縱向中心線垂直，其起重機(jī)械擴(kuò)側(cè)應(yīng)為HB36B建筑塔吊，固側(cè)應(yīng)為KH180履帶吊；吸風(fēng)機(jī)對(duì)稱布置在電除塵器后面，中心線與鍋爐縱向中心線平行，其起重機(jī)械為KH180履帶吊；一次風(fēng)機(jī)對(duì)稱布置在預(yù)熱器出口水平煙道的下方，其起重機(jī)械為KH180履帶吊；密封風(fēng)機(jī)布置在爐內(nèi)預(yù)熱器進(jìn)口空氣管道的下方，用卷揚(yáng)機(jī)進(jìn)行配合安裝。
在施工作業(yè)中具體的步驟如下
1.AN軸流式吸風(fēng)機(jī)作業(yè)方法
該類風(fēng)機(jī)安裝的一般性規(guī)律，是以機(jī)殼裝配（后導(dǎo)葉和葉輪外殼）為基準(zhǔn)和固定端；其進(jìn)氣箱、集氣器和前導(dǎo)葉為前（近電機(jī)方向）熱膨脹滑動(dòng)端，其擴(kuò)壓器和擴(kuò)壓器芯筒為向后（遠(yuǎn)電機(jī)方向）熱膨脹滑動(dòng)端。
其具體安裝順序步驟和要求如下：
1.1將全部機(jī)件存放于基礎(chǔ)附近，清理雜物，除去毛刺，準(zhǔn)備起吊設(shè)施。
1.2基礎(chǔ)清理干凈，檢查各部分基礎(chǔ)標(biāo)高、各基礎(chǔ)孔尺寸；將各部分墊鐵、基礎(chǔ)板與支腿連接后安放好?；A(chǔ)板找平，檢查標(biāo)高。
1.3將機(jī)殼裝配（后導(dǎo)葉組件與葉輪外殼組件）并在一起聯(lián)好后吊入預(yù)定位置，穿好地腳螺栓。用框式水平儀找正機(jī)殼裝配的垂直度和水平度。同時(shí)，保持機(jī)殼軸線與風(fēng)機(jī)進(jìn)出口管道一致。
1.4粗找正后，可對(duì)后導(dǎo)葉組件和葉輪外殼組件的基礎(chǔ)進(jìn)行一次灌漿。水泥達(dá)到規(guī)定硬度后，復(fù)查找正情況；無誤后緊固地腳螺栓達(dá)到所需力矩。
1.5將擴(kuò)壓器外殼下半部聯(lián)好后吊入預(yù)定位置，一面與后導(dǎo)葉外殼法蘭螺栓相連，另一面將支腿園弧板與支腿和擴(kuò)壓器外殼分段點(diǎn)焊，焊牢。
1.6依次聯(lián)接小集流器、前導(dǎo)葉組件、大集流器、進(jìn)氣箱各部件下半部。注意：按要求在法蘭間加密封材料，其進(jìn)氣箱支腿和圓弧調(diào)整好位置后電焊點(diǎn)牢。注意在前后支腿點(diǎn)焊以前，應(yīng)嚴(yán)格保證其機(jī)殼裝配的垂直度，防止外懸重力過大，防止傾斜及機(jī)殼裝配地腳螺栓松動(dòng)，
如吊裝就位時(shí)不能及時(shí)點(diǎn)焊支腿，應(yīng)用枕木和千斤頂支牢，以保證安全。
1.7按總裝圖要求對(duì)進(jìn)氣箱滑動(dòng)支腿和擴(kuò)壓器滑動(dòng)支腿安裝。注意螺栓頭部外露部分適當(dāng)加長，以后要加一滑動(dòng)壓板位置（如總裝圖示）。支腿和支腿圓弧板焊接時(shí)注意對(duì)稱分段焊接，以減少焊接變形。
1.8安裝主軸承座，按要求加裝防松墊，按規(guī)定力矩?cái)Q緊聯(lián)接螺栓；擰緊后按圖安裝徑向測溫元件。按圖安裝前后冷風(fēng)罩和軸向測溫元件，其中錐形冷風(fēng)罩上半部分可最后裝。
1.9吊裝葉輪，按規(guī)定力矩緊固壓蓋螺栓，盤車檢查輪轂與后導(dǎo)葉芯筒間的軸間隙，葉頂與機(jī)殼內(nèi)壁間的徑向間隙尺寸。
1.10葉輪側(cè)半聯(lián)軸器（Form03）與葉輪連接，按規(guī)定力矩?cái)Q緊螺栓。
1.11按圖示安裝電機(jī)端聯(lián)軸器（Form01），將電機(jī)粗定位于預(yù)定位置。
1.12吊裝傳扭中間軸，其擰緊力矩應(yīng)達(dá)到要求。吊裝前建議在電機(jī)端準(zhǔn)備一個(gè)門形架，其轉(zhuǎn)軸與葉輪端聯(lián)好后，另一端用滑輪吊在門形架中，調(diào)好高度，盡早與電機(jī)端聯(lián)軸器聯(lián)好。注意：在吊裝過程中當(dāng)葉輪端聯(lián)好后，另一端偏移距離不得超過5㎜。否則將對(duì)膜片聯(lián)軸器的彈性性能造成不良影響，甚至可能造成聯(lián)軸器損壞。
1.13按AN系列軸流風(fēng)機(jī)轉(zhuǎn)軸系找正原理示意圖：以葉輪端半聯(lián)軸器和電機(jī)主軸水平為基準(zhǔn)，找平找正。應(yīng)保證葉輪端后導(dǎo)葉組件中主軸承座位置的熱膨脹補(bǔ)償量，即電機(jī)水平位置的預(yù)抬量（具體數(shù)據(jù)見總裝圖）。應(yīng)以兩個(gè)聯(lián)軸器膜片間的張口值來保證，其張口值大小，可通過計(jì)算得知；按一般的比例，其張口值約0.20㎜（因煙氣溫度也是控制在一定范圍內(nèi)）即可。
1.14電機(jī)基礎(chǔ)、進(jìn)氣箱基礎(chǔ)、擴(kuò)壓器基礎(chǔ)二次灌漿，達(dá)到規(guī)定硬度后擰緊地腳螺栓，復(fù)查張口數(shù)值。
1.15組裝擴(kuò)壓器芯筒，傳扭中間軸護(hù)管，軸封筒等。
1.16組裝冷風(fēng)管護(hù)筒，冷風(fēng)管路安裝，油管安裝。
1.17進(jìn)氣箱、大集流器、前導(dǎo)葉、小集流器等上半部、擴(kuò)壓器上半部安裝。注意各法蘭之間加裝密封材料，須現(xiàn)場封焊的圓法蘭及對(duì)口板外不加密封材料（參見風(fēng)機(jī)總裝圖）。
1.18調(diào)整前，導(dǎo)葉開啟程度應(yīng)基本保持一致，建議在0度時(shí)（即前導(dǎo)葉葉片與主軸中心線平行時(shí)）調(diào)整和檢查。
1.19安裝前導(dǎo)葉操作執(zhí)行機(jī)構(gòu)，注意葉片開啟，機(jī)殼外的指示執(zhí)行器的指示應(yīng)保持一致。
1.20按圖紙要求安裝冷卻風(fēng)機(jī)、加油裝置、現(xiàn)場測溫、測振裝置、防喘振報(bào)警裝置（若有）等（具體見各裝配圖）。
1.21安裝進(jìn)出口膨脹節(jié)、內(nèi)外保溫防護(hù)層，整個(gè)風(fēng)機(jī)與管道系統(tǒng)連接。
1.22軸向預(yù)拉量的調(diào)整
由于該類風(fēng)機(jī)在熱態(tài)工況時(shí)，煙溫較高，傳扭中間軸較長，其軸熱膨脹量較大（約5~10MM）。因此在冷態(tài)安裝時(shí)應(yīng)將單個(gè)聯(lián)軸器的安裝間隙比自然間隙預(yù)拉開2.5~5MM。
2.1設(shè)備清點(diǎn)、檢查
在設(shè)備到貨的情況下，對(duì)設(shè)備進(jìn)行清點(diǎn)檢查。
2.2基礎(chǔ)劃線、墊鐵配置，縱橫中心線相對(duì)鍋爐中心線偏差不大于20mm。地腳螺栓箱標(biāo)高誤差不大于10mm，相對(duì)之間誤差不大于2mm。
2.3軸承組安裝
軸承組就位安裝，要求：中心距誤差±5mm，標(biāo)高誤差±10mm，軸承組中心線的水平度公差±0.1mm/m。調(diào)整調(diào)平螺栓，緊固地腳螺栓。
2.4進(jìn)氣室、擴(kuò)散器的安裝
進(jìn)氣室、擴(kuò)散器就位，安裝好地腳螺栓，通過調(diào)整墊鐵使之與主軸承風(fēng)筒對(duì)正，其標(biāo)高允許偏差為0~-10mm，水平度偏差不大于3mm。兩者與主軸承風(fēng)筒之間的間隙按圖紙要求為20mm。
2.5電機(jī)找正和連軸器的安裝
風(fēng)機(jī)和電機(jī)軸線同軸度公差0.05mm。聯(lián)軸器端面之間間隙應(yīng)均勻，間隙偏差不得大于0.08mm。
2.6風(fēng)機(jī)的潤滑
2.6.1油站及油管道安裝中，嚴(yán)格遵照供油裝置的廠家所提出的技術(shù)要求進(jìn)行施工。在需要潤滑的各個(gè)部位，添加圖紙或說明書要求的潤滑油或潤滑脂。
2.6.2管道安裝力求走向合理，工藝美觀，回油管需有3.5°的傾斜。油箱及附件檢查、清洗，油箱用煤油做滲油試驗(yàn)，冷油器按其工作壓力的1.25倍作水壓試驗(yàn)，附件清洗后，噴油恢復(fù)。
2.6.3對(duì)油管路系統(tǒng)進(jìn)行油沖洗，沖洗化驗(yàn)合格后方可具備試運(yùn)轉(zhuǎn)的條件。
3.離心風(fēng)機(jī)作業(yè)方法
3.1設(shè)備檢查、檢修：
3.1.1檢查葉輪旋轉(zhuǎn)方向、葉片彎曲方向、機(jī)殼出風(fēng)口角度應(yīng)與圖紙相符（特別注意葉輪的左右旋之分）；
3.1.2.機(jī)殼、轉(zhuǎn)子外觀應(yīng)無裂紋、砂眼、漏焊等缺陷；機(jī)殼內(nèi)部耐磨襯板應(yīng)牢固、平整、無松動(dòng)現(xiàn)象；
3.1.3.入口調(diào)節(jié)擋板門應(yīng)零件齊全、無變形、損傷，且動(dòng)作靈活同步、固定牢固；
3.1.4.軸承冷卻水室水壓實(shí)驗(yàn)應(yīng)嚴(yán)密不漏，按1.25倍工作壓力進(jìn)行水壓試驗(yàn)；葉輪與軸裝配應(yīng)裝配正確，不松動(dòng)；軸承型號(hào)及間隙應(yīng)符合設(shè)計(jì)，用壓保險(xiǎn)絲法檢測各間隙；風(fēng)機(jī)軸承推力間隙應(yīng)在0.3～0.4mm之間，用壓保險(xiǎn)絲檢查，膨脹間隙應(yīng)符合圖紙規(guī)定；安裝時(shí)應(yīng)使軸承縱橫中心偏差≤10mm，軸水平度偏差≤0.1mm/m；
3.1.5.拆卸下來的零件應(yīng)妥善保管按順序編號(hào)，放置在干凈的地方，以免帶上雜物，不可碰傷；
3.2離心風(fēng)機(jī)安裝方法
3.2.1.首先，檢查地基的外形尺寸、各預(yù)留空洞的中心尺寸；地基外型尺寸偏差應(yīng)在±20mm范圍內(nèi)，各預(yù)留空洞的中心尺寸偏差應(yīng)在±10mm之間；基礎(chǔ)劃線，以主廠房建筑基點(diǎn)或鍋爐縱橫中心線為基準(zhǔn)，測得基礎(chǔ)縱橫主中心線偏差應(yīng)在±10mm，中心線距離偏差應(yīng)為±3mm，基礎(chǔ)標(biāo)高應(yīng)在±5mm之間；
3.2.2.鑿平地基，放置地腳螺栓、布置墊鐵，墊鐵組一般為2平1斜3付墊鐵，厚的放下面，斜墊鐵應(yīng)成對(duì)使用；并伸出機(jī)框約20mm；找正后應(yīng)焊牢、不許松動(dòng)；墊鐵應(yīng)放置在設(shè)備主受力臺(tái)板、機(jī)框立筋處或地腳螺栓兩側(cè)，在不影響二次灌漿的情況下盡量靠近地腳螺栓孔；
3.2.3.機(jī)殼下半部粗定位：注意廠家的安裝標(biāo)記，通?！癆”、“B”號(hào)各位一臺(tái)，就位前注意區(qū)分與進(jìn)出口風(fēng)管的關(guān)系、葉輪旋向等；
3.2.4將集流器喇叭口插入葉輪內(nèi)用鐵絲固定后，將整個(gè)轉(zhuǎn)動(dòng)組吊入預(yù)定位置；安裝地腳螺栓，地腳螺栓的彎曲度應(yīng)≤L/100（L為地腳螺栓的長度），地腳螺栓底端不應(yīng)接觸孔底、孔壁。地腳螺栓應(yīng)受力均勻、并螺栓外露2～3扣；然后松開鐵絲將集流器下部與機(jī)殼下半部用螺栓固定初步調(diào)整葉輪與喇叭口的間隙。
3.2.5.風(fēng)機(jī)轉(zhuǎn)動(dòng)組找平、找正：風(fēng)機(jī)主軸與軸承座之間的垂直度采用如下方法找正：將磁力座貼在主軸上，將百分表表頭指向軸承外圈或軸承座彈位端面上（既上端蓋加工面上）；此時(shí)旋轉(zhuǎn)主軸一周以上其表針讀數(shù)不大于0.15mm即可，此讀數(shù)值為該軸承座與主軸的垂直情況。
3.2.6.電動(dòng)機(jī)找平、找正：調(diào)整風(fēng)機(jī)與電機(jī)主軸同軸度（既聯(lián)軸器找平找正）。用三塊百分表找正，軸向兩塊、徑向一塊；每盤動(dòng)軸90度，記錄數(shù)據(jù)，測量其上下左右的讀數(shù)，調(diào)整同軸度，使其誤差≤0.05mm；且兩靠背輪之間應(yīng)有10mm間隙。找正后，復(fù)查軸中心高度等部分?jǐn)?shù)據(jù)，做好記錄。
3.2.7.在風(fēng)機(jī)找正后，進(jìn)行機(jī)殼上半部扣蓋、集流器與機(jī)殼安裝就位，兩機(jī)殼之間應(yīng)墊石棉繩；擰緊連接螺栓，四邊螺栓應(yīng)受力均勻；以葉輪為基準(zhǔn)，再次調(diào)整葉輪與喇叭口的間隙。
3.2.8.安裝進(jìn)氣箱、入口調(diào)節(jié)擋板門和風(fēng)機(jī)其余部分，調(diào)節(jié)擋板轉(zhuǎn)動(dòng)靈活，否則應(yīng)加潤滑油轉(zhuǎn)動(dòng)、直至轉(zhuǎn)動(dòng)靈活方能安裝；安裝時(shí)葉板應(yīng)固定牢靠，與外殼有充分的膨脹間隙；調(diào)節(jié)操作裝置應(yīng)靈活正確，動(dòng)作一致、開度指示標(biāo)記與實(shí)際相符；要注意開啟方向，不可裝反，進(jìn)氣方向與葉輪旋轉(zhuǎn)方向相同。
3.2.9.冷卻水、潤滑油管道布置應(yīng)符合圖紙要求，布置正確、美觀，且管道內(nèi)不得有雜物。
參考文獻(xiàn)
[1]上海鼓風(fēng)機(jī)廠提供的FAF19-9.5-1型軸流式送風(fēng)機(jī)使用說明書及設(shè)備安裝圖紙。
[2]成都電力機(jī)械廠提供的AN28c6型軸流式吸風(fēng)機(jī)使用說明書及設(shè)備安裝圖紙。
[3]成都電力機(jī)械廠提供的G6-45-13No.19F型離心式一次風(fēng)機(jī)使用說明書及設(shè)備安裝圖紙。
[4]上海鼓風(fēng)機(jī)廠提供的9-19No16D型離心式密封風(fēng)機(jī)使用說明書及設(shè)備安裝圖紙。
[5]華東六省一市電機(jī)工程（電力）學(xué)會(huì)，鍋爐設(shè)備及其系統(tǒng)。
附錄2
Boiler air blower installation
Abstract: boiler burning boilers can not be separated from the wind systems, wind systems, including secondary air system, a wind system, scanning the cooling system and top wind sealed air system. The wind systems have provided the corresponding fan. Limited to Nanjing Suyuan 2 × 300MW thermoelectric generating units # 4 Boiler Works breathing air system were described as an example AN Axial-suction fan, FAF Axial-blower, centrifugal fan of the installation.
Keyword: Boiler air blower practices
Boiler combustion air system can not be separated from the boiler, its wind system, including secondary air system, a wind system, scanning the cooling system and top wind sealed air system. The wind systems have provided the corresponding fan, the fan installed on the quality of boilers have a safe and reliable operation is inseparable from the role.
Thermoelectric Company Limited to Nanjing Suyuan 2 × 300MW unit works fan installation as an example of the fan talk of the installation steps and related matters.
Nanjing Suyuan Thermoelectric Company Limited 2 × 300MW unit project# 4 boiler breathing air system installed by balanced ventilation design to meet a fan, blower, suction fan in the boiler or the status of low-load side of fan failure of unilateral operation, air - With the wind over the import and export cigarettes are equipped with isolation doors. Blower use of the dynamic capacity of 50 adjustable two axial fans, the suction fan of the use of static two adjustable axial fans, a fan capacity by 50 fixed-speed single-suction centrifugal fan two.
Milling system used in a fan-speed grinding pressure cold-blown straight. Sealing their home control system uses the closed air system, each furnace for 2-sealed centrifugal blower, a running, one for the standby.
Construction of Nanjing Suyuan task is to install two thermoelectric Limited 2 × 300MW units # 4 boiler blower, the suction fan, a fan, sealing fan.
Its capacity to work
Blade adjustable Axial-blower two, matching 6 KV two high-power motor, equipped with two sets of hydraulic oil station;
Jing Ye adjustable suction fan two axial-flow, matching 6 KV two high-power motors;
A single-suction centrifugal blower two, matching 6 KV two high-power motors;
Single-suction centrifugal fan sealed two, supporting two 380 V motor;
According to the construction drawings requirements: blower, the suction fan, a fan, the fan is sealed Mill layout in the boiler room of the zero-meter, symmetrical layout blower in the furnace-cold air preheater positions on both sides of the location of the centerline and vertical boiler Center Vertical line, the crane should be extended to the side HB36B construction tower crane, solid side should KH180 crawler cranes; suction fan the symmetric layout ESP behind the centerline vertical axis parallel with the boiler, KH180 crawler cranes for lifting appliances; time Fan symmetrical layout in the pre-heater flue at the bottom level of exports, its KH180 crawler cranes for lifting appliances, sealing air in the layout of imports air preheater furnace pipe at the bottom, with a winch with the installation.
During the construction work in the concrete steps are as follows
1.AN Axial-suction fan practices
Fan installation of such a general rule, a chassis assembly (after the guide vane impeller and casing) and fixed-base; their intake boxes, gas and set for the former leader of the (near the electrical direction) thermal expansion sliding - , The diffuser and diffuser tube for the core back (from the electrical direction) thermal expansion sliding side.
The specific order of steps and installation requirements are as follows:
1.1 will be the basis of all parts stored in the vicinity, cleaning up debris, except for Burr for lifting facilities.
1.2 basis clean up, check the elevation of the foundation, the foundation hole size; Sizing Block will be part of the foundation board and the outrigger connected properly placed. Leveling board basis, check elevation.
1.3 chassis assembly will be (after the guide vane impeller shell components and parts) and with the good after the scheduled hanging position, Chuanhao Anchor Bolt. With box-level instrument for chassis assembly is the vertical and horizontal degrees. At the same time, maintain the chassis axis of import and export pipeline in line with the fan.
1.4 are looking for crude, may lead after the components of the impeller and casing components of the basis for a filling. Cement achieve the required hardness, the complex is to find; correct after fastening Anchor Bolt achieve the required torque.
1.5 will diffuser shell of a good second half after the scheduled hanging position, and after a derivative of the shell flange bolts attached to the other side will outrigger Park arc plate and outrigger and diffuser shell Sub-point Welding, welding firm.
1.6 followed by small-flow connection, leader of the components, large-flow, inlet me the second half of the components. Note: according to required flange Canadian seal materials, their intake me outrigger and a good position after the adjustment arc welding points in jail. Attention in the past before and after the outrigger spot welding, should strictly ensure that its chassis assembly of the vertical, to prevent the hanging of gravity too large to prevent the tilt and chassis assembly Anchor Bolt loose,
If not timely loading place at the Outrigger spot welding, and jack-of Zhenmu prison, to ensure security.
1.7 according to the requirements of hand-me sliding into the outrigger and diffuser sliding outrigger installation. Attention to the exposed parts of the head bolts longer appropriate, to increase after a sliding clips position (such as the General Armament Department icon). Outrigger and outrigger arc-welding when the attention of symmetry subparagraph welding, to reduce the welding deformation.
1.8 installed at the main bearing, as required to install anti-loose mats, in accordance with the regulations of joint bolts fastening the moment; tightened after the plans to install temperature radial components. Click to cover the installation before and after the cold wind and temperature measuring axial components, which tapered cast cold wind can be part of the last half-loaded.
1.9 Lifting impeller, in accordance with the regulations Gland torque fastening bolts, plates and vehicle inspection wheels of the lead after the core cylinder gap between the shaft, with the top of the wall between the chassis size radial clearance.
1.10 impeller side of half-coupling (Form03) connected with the impeller, in accordance with the regulations torque tightening bolts.
1.11 icon installed on motor-coupling (Form01), will be located in the electrical rough scheduled location.
Lifting the middle-twisting 1.12-axis, the tightening torque requirements to be met. Lifting the former motor-prepared proposals in a door-shaped planes, its shaft and impeller end of the good, the other side of the door hanging with the pulley-shape, for good height, as soon as possible with the motor-coupling of the good. Note: When in the course of lifting the impeller-good, the migration from the other end may not exceed 5 mm. Otherwise it will patch the flexibility of coupling adverse impact and may even damage caused by coupling.
1.13 AN series by axial fans shaft of the Principle of looking for are: Impeller half-coupling and motor spindle level as the base, leveling are looking for. Should ensure that the impeller lead after the end of the main components of the housings location of the thermal expansion of compensation, that is, the location of the electrical level of pre-carrying capacity (see specific data on hand). Should be to patch the two coupling between the opening value that the opening of its size, can be calculated that, according to the proportion of general, the opening value of about 0.20 mm (for flue gas temperature is controlled within a certain range) Can be.
1.14 Motor basis, based on intake me, Diffuser basis of secondary grouting, achieve the required hardness after tightening Anchor Bolt, opening numerical review.
1.15 assembly diffuser core extinguishers, middle-twisting for the axis, such as cylinder seal.
1.16 assembly cold wind of the casing, cold wind pipe installation, pipeline installation.
1.17 intake boxes, large-flow, leader of the small cluster of like the first half, the diffuser on the second part of the installation. Attention to the installation of the flange between the sealing material to the scene of the circular welded flange closure counterparts boards and not sealing materials (see fan assembly).
1.18 before adjustment, leaves open the extent of lead should be the basic line, it is proposed that at 0 degrees (that is, leaves with the leader of the main axis parallel to the centerline) adjustment and inspection.
1.19 installed leader of the operation of implementing agencies, the attention leaves open the case, the instructions for the implementation of the instructions should be consistent.
1.20 according to the drawings require the installation of cooling fan, refueling devices, the scene temperature, vibration measurement devices, Anti-surge alarm device (if any), etc. (see the specific assembly).
1.21 installation of import and export expansion joint, both inside and outside protective layer insulation, the entire pipeline system connecting with the fans.
1.22 axial pretensioners of adjustment
As such fan in the hot conditions, the smoke temperature higher, longer-twisting intermediate shaft, the shaft of thermal expansion of larger (about 5 ~ 10 MM). Therefore, in cold installation will be the installation of a single coupling space than the natural space-opened 2.5 ~ 5 MM.
2.1 equipment inventory, inspection
Equipment arrived in the circumstances, the equipment inventory check.
2.2 basis crossed, Sizing Block configuration, vertical and horizontal axis relative boiler center deviation of not more than 20 mm. Anchor Bolt me elevation of error no greater than 10 mm, between the relative error of not more than 2 mm.
Bearing Group to install 2.3
Bearing Group in place to install, asked: center distance error of ± 5mm, elevation of error of ± 10mm, bearing the centerline of the Group of the tolerance level of ± 0.1mm / m. Leveling adjustment bolts, fastening Anchor Bolt.
2.4 intake room, with the spread of the installation
Intake room, diffuser in place, installed Anchor Bolt, so that by adjusting Sizing Block and the main bearing Hair Dryers are, their elevation to allow for deviations 0 ~ -10 mm, standard deviation of not more than 3 mm. Taken with the main bearing Hairdryer gap between the demand for the drawings by 20 mm.
2.5 is to find and even motor shaft for the installation
Fan and motor axis coaxial tolerance 0.05 mm. End coupling between the gap should be uniform, the gap deviation should be no larger than 0.08 mm.
2.6 fan lubrication
2.6.1 petrol filling stations and oil pipeline installation, oil installations in strict accordance with the manufacturers by the technical requirements for construction. In the various parts need lubrication, add drawings or specification requirements of the oil or grease.
2.6.2 to install pipelines to a reasonable, attractive technology, the need for tubing to the 3.5 ° tilt. Fuel tanks and accessories inspection, cleaning, using kerosene fuel tanks do permeability test, cold oil for their work pressure of 1.25 times for hydrostatic testing, cleaning the annex, the resumption of fuel injection.
2.6.3 of the road system for the oil pipeline flushing, flushing tests have qualified before the commissioning of the conditions.
3. Centrifugal fan practices
3.1 equipment inspection, maintenance:
3.1.1 check impeller rotation direction, the direction of curved blades, chassis angle Tuyere to be consistent with the drawings (with special attention to the rotation around the impeller);
3.1.2. Cases, the rotor should be no appearance of cracks, Shayan, welding defects such as leakage; cases should be firmly within the wear-resistant liner, the formation, without loosening;
3.1.3. Entrance doors should be regulating baffle parts complete, no deformation, damage, and flexible action simultaneously, firmly fixed;
3.1.4. Room bearing cooling water pressure should be strictly experimental not leak, according to 1.25 times the pressure of work pressure test; impeller and the shaft assembly should be assembled correctly, not loose; bearing models and space should be consistent with the design, with pressure fuses Detection The gap; Fan Bearing thrust space should be between 0.3 ~ 0.4 mm, with pressure fuses inspection, clearance should be in line with expansion plans; should be installed so that vertical and horizontal center bearing deviation ≤ 10 mm, the level of the axis deviation ≤ 0.1 mm / m;
3.1.5. Demolished down parts should be properly safeguarded by serial numbers, placed in a clean place, so as not to put debris, not broke;
3.2 centrifugal fan installation method
3.2.1. First, check the foundation of Dimension, the Centre for empty size; foundation appearance in the size of deviation should be within ± 20mm, the size of the center empty for deviation should be between ± 10mm; base line To the main boiler plant construction basis points, or vertical and horizontal axis as a benchmark, measured the main basis of vertical and horizontal axis deviation should be ± 10mm, the centerline distance deviation should be ± 3mm, based in elevation between ± 5mm;
3.2.2. Chisel-ground, placed Anchor Bolt, layout Sizing Block, Sizing Block Group 2-1 is generally inclined to pay Sizing Block 3, thick-Below, ramps Sizing Block should be used in pairs, and out-box about 20mm; are looking for after welding in jail, while the loose; Sizing Block equipment must be placed in the main board of Taiwan, Li-box tendons or Anchor Bolt on both sides, without affecting the secondary filling the circumstances as close as possible to Anchor Bolt Hole;
3.2.3. Chassis second half of rough location: the attention of manufacturers to install the markers, usually "A", "B" one of you, the attention of distinction in place before wind and the import and export of the relationship between the impeller to the rotation;
3.2.4 will be set for trumpet flow impeller inserted in the tension, turning the whole group is scheduled to hoist position; installed Anchor Bolt, Anchor Bolt the curvature should be ≤ L/100 (L is the length of Anchor Bolt ), Anchor Bolt contact hole at the bottom should not be the end of the hole wall. Anchor Bolt should be of uniform and exposed bolts 2 to 3 deduction and then release the wire will set converter chassis and the lower part of the second half with a fixed initial adjustment bolt impeller and trumpet the gap.
3.2.5. Leveling fan rotation group, is looking for: Fan spindle and bearing between the verticality of the following methods used to find is: will be posted on the main axis magnetic blocks, will be
收藏