【導讀】千錘百煉，軍工品質——永昇中央空調……材焊接風管及通風附件等，根據設計要求，落實風管及附件規(guī)格型號、數(shù)量，中心線與法蘭平面保持垂直，翻邊的尺寸應為6-9mm。法蘭用料規(guī)格較小的可取上限值，鏟平，同時四角不應出現(xiàn)豁口，以免漏風，鉚釘距離不可大于120mm。管輕、厚度薄、強度高。該風管可增加風管強度與韌性，氣密性極佳，風速強、磨擦損失。內管可以采用沖孔板制成，中間保溫材料采用厚的巖棉，外層再以螺旋風管。被覆在保溫材料上。果由工廠繪制施工安裝圖。安裝時，圓風管用砂輪切割，用其它工具切斷時，切口要用砂。輪磨平，不能把異物遺忘在管內。連接布風器的軟管，最好外包20-30mm厚泡沫橡膠或

　　

【正文】 ……千錘百煉，軍工品質 —— 永昇中央空調…… PAGE 27 船用空調通風系統(tǒng)安裝施工工藝規(guī)范 采用工具清除風管，使其露出金屬原色，后用掃 帚清掃干凈，遇有油污、瀝清等物應用汽油或煤油、松香水、苯類溶劑清洗處理干凈。 Remove the dust the air duct until the primitive colors is displayed, clean it by broom, if the oil dirty or asphalt is found it shall be cleaned by gasoline or coal oil, rosin liquid or benzene liquid. (2) 刷防銹漆 Brush the antirust paint 用設計要求的防銹漆滿刷一遍，凡有損壞及銹班處，應重新處理，徹底打磨干凈后，再補刷防銹漆一遍。 Brush the antirust paint according to the requirements, the damaged or dusted area shall be treated again then brush the antirust paint. (3) 局部刮膩子 Brush putty partly 待防銹漆干透后，將金屬面的砂眼、缺 棱、凹坑、拼縫間隙等處用石膏膩子刷抹平整。 After the antirust paint is dried, the sand hole, wane, drop pit, edge joint of metal surface shall be smoothed by parget putty. (4) 磨光 Grind 膩子干透后，用一號砂布打磨平整，然后用潮布擦凈表面。 After the putty is dried, it shall be grind by emery cloth then cleaned by wet cloth. (5) 涂刷 Brush 必須按設計和規(guī)范規(guī)定的層數(shù)進行涂刷。 Brush layers shall be according to the design requirements and rules. 另支、吊、托架油漆，在一般情況下，支、吊、托架與設備、風管所處環(huán)境相同，因此其防腐處理應與設備、風管一樣，但是高含有酸堿或其他腐蝕性氣體的區(qū)域內，采用不銹鋼板、硬聚氯乙烯板等風管時，則支、吊、托架的防腐處理應由設計單位另行規(guī)定 ；其它防腐要求如 技 術協(xié)議有特殊要求的 則 按技術協(xié)議執(zhí)行。 Generally, if the environmetal condition of supporter, hanger and bracket is the same as the equipment and air duct, the treating method shall accord to the equipment and air duct. If in the ……千錘百煉，軍工品質 —— 永昇中央空調…… PAGE 28 船用空調通風系統(tǒng)安裝施工工藝規(guī)范 acid and alkali or other corrosive gas area the stainless steel or air duct rigid polyvinyl chloride air duct is adopted, the supporter, hanger and bracket shall be treated according to the designer。 others shall be according to the technical agreements. 注意： 30000 噸多用途船的 機艙通風系統(tǒng)風管采用鋼板和鍍鋅鋼板制作， 3mm 壁 厚的 風管且規(guī)格小于 600400的需要熱鍍鋅處理， 5mm壁 厚 的且規(guī)格大于 600400的 用鋼板焊接制成。 風管制作完成后應噴砂處理涂二層防銹漆， 外表再涂一層完工漆； 4號貨艙的所有通風管和通風筒除不銹鋼風管以外均須熱讀鋅，涂防銹漆或其它適合的防銹措施； 露天甲板連接螺栓采用不銹鋼材料， 上甲板以上 10mm 厚的風管連接螺栓采用不銹鋼材料， 所有 風管吊架需熱鍍鋅處理 。 Note: The air duct system for engine room of 30,000T multipurpose vessel is made of steel plate and galvanized steel plate, the thickness is 3mm and the dimension is less than 600400 it shall be hot galvanized, the air duct with thickness is 5mm and the dimension is more than 600400 is welded by steel plate. After the air duct is fabricated it shall be sand blasted then coated with two layers of antirust paint, then coated with one layer finish paint。 refer to the no. 3 and 4 hold, all vent pipe and ventilator except stainless steel air duct shall be hot galvanized, coated with antirust paint or other suitable antirust method。 the connection bolt for the exposed deck shall be made of stainless steel, upper the upper deck the air duct with thickness of 10mm the stainless steel bolt shall also be adopted, the hanger of all air duct shall be hot galvanized. 七 、 風管檢漏保溫 Leak hunting and insulation of air duct 通風系統(tǒng)的檢漏 Leak hunting of ventilation system 通風系統(tǒng)安裝結束后，應對通風系統(tǒng)進行檢漏，可以采用以下兩種方法進行： After the ventilation system is installed, the leak hunting test shall be done, the test method as the following: (1) 燈光檢漏，將安 全 燈從風管內部走過，觀察風管外部有無亮光。若有，采用錫、咬合面密封或涂膠等措施使之密封。 Tested by light: When the safe light go through the air duct, the light shall not be found ……千錘百煉，軍工品質 —— 永昇中央空調…… PAGE 29 船用空調通風系統(tǒng)安裝施工工藝規(guī)范 from outside the air duct. If the light is found, the air duct shall be sealed by algam, sealant etc. (2) 風機運轉檢漏，用薄紙片在風管接合面走過，看紙片有無飄動現(xiàn)象。若有則說明風管有泄漏，采取焊錫、咬緊合面、擰緊緊固螺栓等方法使風管不漏風。 Tested by rotate the fan: When the tissue through the joint of air duct, it shall not flap, otherwise it shall be sealed by algam, sealant etc. 由此進入下一道工序，刷油、防腐、保溫。 Then e into the next step, bush oil, anticorrosive, insulation 作業(yè)條件 Working condition (1) 風管及設備需試漏的試漏合格，防腐處理結束； The leak hunting test is accepted, anticorrosive treatment is finished。 (2) 風管及設備支架和墊木安裝齊備； The supporter and templet of air duct and equipment is provided。 (3) 場地應清潔干凈，有良好的照明設施。冬季、雨季應有防凍、防雨措施； The field is clean and provided with fine lighting equipment. Provided with suitable antifreezing and flashing measure. (4) 施工中已對風系統(tǒng)進行試驗、檢驗，并已簽發(fā)了驗收合格報告。 The ventilation system had been tested and inspected and issued with acceptance report. 操作工藝： Operation technical: (1) 選擇保溫材料應注意以下幾點： Pay attention to the following points when select the insulation material: 選擇保隔熱材料一定要符合溫度要求 The heat insulating material shall satisfy the temperature requirements。 隔熱材料的導熱 性能 低 The thermal conductivity of heat insulating material shall be low。 具有耐水性、吸濕性小 Has fine water resistant and low hygroscopicity 便于施工 ……千錘百煉，軍工品質 —— 永昇中央空調…… PAGE 30 船用空調通風系統(tǒng)安裝施工工藝規(guī)范 Easy to construction 不易燃燒，最好為非燃或難燃材料 Unease to burn, the nonbustible material is best (2) 保溫層厚 度，材料應嚴格按照設計要求選定。 The thickness of insulation layer shall be according to the design requirements. (3) 常用保溫方法： Normal insulation method: 粘貼法：將風管表面清除油污、灰塵、鐵銹、焊渣等涂刷粘貼材料，應均勻地分布在風管和設備的外表面上，隔熱層與風管及設備表面應緊密貼合。隔熱層的縱橫間接縫應錯開；隔熱層粘貼后，應進行包扎或捆扎，包扎的搭接處應均勻貼緊，捆扎時不得 破壞 隔熱層。 Stick: Clean out the oil dirty, dust, rust and weld spatter on the surface of air duct then brushed with stick material which shall be distributed uniformly to the surface of air duct and equipment。 the insulation layer shall be jointed to the surface of air duct and equipment closely. The vertical and horizontal joint of insulation layer shall be staggered。 after the insulation layer is sticked it shall be tied up or packed, the joint shall be even and close, do not damage the insulation during packing. 碰釘固定法：適用于帶鋁箔的離心玻璃棉、巖棉等。將風 管 表面清除油污、灰塵、鐵銹、焊渣 等 后，每隔 20cm 涂刷粘貼材料，待碰釘粘結材料固化 12 小時后，方可安裝保溫材料。將保溫釘穿過保溫材料，注意不要碰彎或碰倒，將保溫材料緊貼風管后用配套壓片將只溫材料壓緊。隔熱層的縱橫間接縫應錯