1.首先，檢查地基的外形尺寸、各預留空洞的中心尺寸;地基外型尺寸偏差應在±20mm范圍內，各預留空洞的中心尺寸偏差應在±10mm之間;基礎劃線，以主廠房建筑基點或鍋爐縱橫中心線為基準，測得基礎縱橫主中心線偏差應在±10mm，中心線距離偏差應為±3mm，基礎標高應在±5mm之間;

1. First, check the overall dimension of the foundation and the central dimension of each reserved hole; The external dimension deviation of the foundation shall be within ± 20mm, and the central dimension deviation of each reserved cavity shall be within ± 10mm; The foundation marking shall be based on the building base point of the main power house or the vertical and horizontal centerline of the boiler. The measured deviation of the vertical and horizontal main centerline of the foundation shall be ± 10mm, the distance deviation of the centerline shall be ± 3mm, and the foundation elevation shall be between ± 5mm;

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，斜墊鐵應成對使用;并伸出機框約20mm;找正后應焊牢、不許松動;墊鐵應放置在設備主受力臺板、機框立筋處或地腳螺栓兩側，在不影響二次灌漿的情況下盡量靠近地腳螺栓孔;

2. Chisel the foundation, place the anchor bolts and arrange the sizing block. The sizing block group is generally 2 flat, 1 inclined and 3 pairs of sizing blocks. The thick ones are placed below, and the inclined sizing blocks shall be used in pairs; And extend out of the frame by about 20mm; After alignment, it shall be welded firmly without loosening; The sizing block shall be placed on the main bearing bedplate of the equipment, the vertical reinforcement of the machine frame or both sides of the anchor bolt, and shall be as close to the anchor bolt hole as possible without affecting the secondary grouting;

3.機殼下半部粗定位：注意廠家的安裝標記，通?！癆”、“B”號各位一臺，就位前注意區分與進出口風管的關系、葉輪旋向等;

3. Rough positioning of the lower half of the casing: pay attention to the installation marks of the manufacturer, usually one for "a" and "B". Before positioning, pay attention to distinguish the relationship with the inlet and outlet air duct and the rotation direction of the impeller;

4 . 將集流器喇叭口插入葉輪內用鐵絲固定后，將整個轉動組吊入預定位置;安裝地腳螺栓，地腳螺栓的彎曲度應≤L /100(L為地腳螺栓的長度)，地腳螺栓底端不應接觸孔底、孔壁。地腳螺栓應受力均勻、并螺栓外露2～3扣;然后松開鐵絲將集流器下部與機殼下半部用螺栓固定初步調整葉輪與喇叭口的間隙。

4. Insert the bell mouth of the collector into the impeller and fix it with iron wire, and then lift the whole rotating group into the predetermined position; When installing the anchor bolt, the bending degree of the anchor bolt shall be ≤ L / 100 (L is the length of the anchor bolt), and the bottom end of the anchor bolt shall not contact the hole bottom and hole wall. The anchor bolt shall be stressed evenly and exposed for 2 ~ 3 buckles; Then loosen the iron wire, fix the lower part of the collector and the lower half of the casing with bolts, and preliminarily adjust the gap between the impeller and the bell mouth.

5.風機轉動組找平、找正：風機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);此時旋轉主軸一周以上其表針讀數不大于0.15mm即可，此讀數值為該軸承座與主軸的垂直情況。

5. Leveling and alignment of fan rotating group: the perpendicularity between fan main shaft and bearing seat shall be aligned by the following methods: stick the magnetic seat on the main shaft, and point the dial indicator head to the bearing outer ring or the elastic end face of the bearing seat (i.e. the machined surface of the upper end cover); At this time, rotate the spindle for more than one cycle, and the reading of the gauge needle shall not be greater than 0.15mm. This reading value is the perpendicularity between the bearing seat and the spindle.

6.電動機找平、找正：調整風機與電機主軸同軸度(既聯軸器找平找正)。用三塊百分表找正，軸向兩塊、徑向一塊;每盤動軸90度，記錄數據，測量其上下左右的讀數，調整同軸度，使其誤差≤0.05mm;且兩靠背輪之間應有10mm間隙。找正后，復查軸中心高度等部分數據，做好記錄。

6. Motor leveling and alignment: adjust the coaxiality of fan and motor main shaft (i.e. coupling leveling and alignment). Align with three dial indicators, two axially and one radially; Rotate each shaft 90 degrees, record the data, measure the readings up, down, left and right, and adjust the coaxiality to make the error ≤ 0.05mm; There shall be a 10mm gap between the two coupling wheels. After alignment, recheck the shaft center height and other data and make records.

7.在風機找正后，進行機殼上半部扣蓋、集流器與機殼安裝就位，兩機殼之間應墊石棉繩;擰緊連接螺栓，四邊螺栓應受力均勻;以葉輪為基準，再次調整葉輪與喇叭口的間隙。

7. After the fan is aligned, buckle the cover on the upper half of the casing, install the collector and the casing in place, and pad asbestos rope between the two casings; Tighten the connecting bolts, and the bolts on four sides shall be stressed evenly; Based on the impeller, adjust the clearance between the impeller and the bell mouth again.

8.安裝進氣箱、入口調節擋板門和風機其余部分，調節擋板轉動靈活，否則應加潤滑油轉動、直至轉動靈活方能安裝;安裝時葉板應固定牢靠，與外殼有充分的膨脹間隙;調節操作裝置應靈活正確，動作一致、開度指示標記與實際相符;要注意開啟方向，不可裝反，進氣方向與葉輪旋轉方向相同。

8. Install the air inlet box, inlet regulating baffle door and other parts of the fan. The regulating baffle rotates flexibly. Otherwise, add lubricating oil to rotate until it rotates flexibly; During installation, the blade plate shall be firmly fixed and have sufficient expansion clearance with the shell; The adjusting operating device shall be flexible and correct, the action shall be consistent, and the opening indication mark shall be consistent with the actual situation; Pay attention to the opening direction and do not install it reversely. The air inlet direction is the same as the rotation direction of the impeller.

9.冷卻水、潤滑油管道布置應符合圖紙要求，布置正確、美觀，且管道內不得有雜物。

9. The layout of cooling water and lubricating oil pipes shall meet the requirements of the drawings, be correct and beautiful, and there shall be no sundries in the pipes.

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