【正文】 spiral air duct to the insulation material. 送風(fēng)管的安裝，先由工廠(chǎng)樣臺(tái)綜合放樣，確定其布風(fēng)器的安裝位置，然后根據(jù)放樣結(jié)果由工廠(chǎng)繪制施工安裝圖。法蘭用料規(guī)格較小的可取上限值，規(guī)格較大的取下限值，防止翻邊卡住螺孔，影響組裝，咬口重疊處，翻邊時(shí)應(yīng)將突出部分鏟平，同時(shí)四角不應(yīng)出現(xiàn)豁口，以免漏風(fēng)，鉚釘距離不可大于 120mm。 ……千錘百煉，軍工品質(zhì) —— 永昇中央空調(diào)…… PAGE 1 船用空調(diào)通風(fēng)系統(tǒng)安裝施工工藝規(guī)范 船用空調(diào)通風(fēng)系統(tǒng)安裝施工工藝規(guī)范 INSTALLATION AND CONSTRUCTION TECHNICAL RULES FOR MARINE AIR CONDITIONER amp。 Connection of rectangle air duct the flanging, rivet jointing and welding can be adopted, the connect the air duct and angle steel flange, when the thickness of air duct is less than , generally, flanging and rivet jointing can be adopted, at first the air duct shall be turned over the outside of the flange, and the center of air duct and the surface of flange shall keep vertical measured by the set square, dimension of the folded selvedge is 69mm. If the dimension of flange is small take the upper limit, if it is big take the lower limit value, do not block the bolt holes to affect the installation of air duct, the overlap shall be smooth, and the four angles shall be tight, the distance between rivet shall not more than 120mm. ……千錘百煉，軍工品質(zhì) —— 永昇中央空調(diào)…… PAGE 4 船用空調(diào)通風(fēng)系統(tǒng)安裝施工工藝規(guī)范 (2)螺旋風(fēng)管 Spiral air duct 螺旋風(fēng)管是由寬 135mm、厚 的鍍鋅鐵皮，采用自動(dòng)化機(jī)械將之卷成螺旋狀，風(fēng)管輕、厚度薄、強(qiáng)度高。安裝時(shí)，圓風(fēng)管用砂輪切割，用其它工具切斷時(shí)，切口要用砂輪磨平，不能把異物遺忘在管內(nèi)。 According to various technical requirements of each kind of air duct to select the suitable plate, then lay off according to the drawing. 焊接前必須清除焊接端口處的污物、油跡、銹蝕，角用點(diǎn)焊或縫焊時(shí)，還需清除氧物 ……千錘百煉，軍工品質(zhì) —— 永昇中央空調(diào)…… PAGE 5 船用空調(diào)通風(fēng)系統(tǒng)安裝施工工藝規(guī)范 化。 Before welding the end side of the products shall be cleaned, such as dirty, oil trace, dust shall not be found, when spot welding or seam welding is adopted for the angle the oxide shall be cleaned out. The space of butt joint shall keep less. During welding the air duct shall according the thickness of plate to select correct welding wire, current, voltage and speed. After welding the welding seam and around shall be cleaned such as slag and remain welding wire etc. 焊接接頭型式如下： Welding joint as the following: 四、工件表面處理： Surface treatment of workpiece 鋼板件磷化處理 Phosphating of steel plate 磷化前的處理： Before phosphating (1) 工件的機(jī)械加工、成型、焊接和打孔，應(yīng)在磷化前完成。 (2) 處理時(shí)間：由現(xiàn)場(chǎng)根據(jù)下列因素靈活掌握： Treating time: The treating time can be decided according to the fact at the scene. 按用戶(hù)要求，予設(shè)處理層厚度 According to user’s requirements to set the thickness of treatment layer Refer to the plate it shall not be emerged in the treating liquid overlapped, the distance between the plates shall be kept 50100mm, so that the treating quality can be ensured. (4) 工件 出槽前應(yīng)注意液面層油污狀況，必要時(shí)應(yīng)除去油污，以免工件出槽時(shí)油污粘在工件表面。 Install the supporter and hanger of air duct system it the first step, the type of supporter, hanger shall be selected according to the size of air duct and the station of project, the hanger shall according to design drawing and national standard drawing. 對(duì)于保溫風(fēng)管，由于選用的保溫材料不同，其風(fēng)管的單位長(zhǎng)度和重量不相同，支、吊架間距應(yīng)符合設(shè)計(jì)要求，矩形保溫風(fēng)管的支、吊、托架宜設(shè)在保溫層外部，不 得 損壞保溫層，風(fēng)管的安裝標(biāo)高，對(duì)于距形風(fēng)管是從管底標(biāo)起，為保持風(fēng)管的水平，托架的標(biāo)高應(yīng)按變徑的尺寸相應(yīng)提高風(fēng)管的安裝。風(fēng)管沿鋼板壁走時(shí)，管壁到鋼板壁至少保留 150mm的距離，以擰法蘭螺絲。 The weight of branch pipe shall not beared by main pipe. (5) 管道上所用的金屬附件，應(yīng)按設(shè)計(jì)要求做好防腐處理 。 Besides rivets or bolts, wrap with aluminiumfoil around connection to be airproof ●螺旋風(fēng)管安裝節(jié)點(diǎn) Installation nodes of spiral ducts 1）螺旋風(fēng)管接到靜壓箱或矩形風(fēng)管如下圖： Spiral ducts connect to static pressure box or rectangular ducts shown in the following drawings ……千錘百煉，軍工品質(zhì) —— 永昇中央空調(diào)…… PAGE 11 船用空調(diào)通風(fēng)系統(tǒng)安裝施工工藝規(guī)范 2）一根螺旋風(fēng)管上開(kāi) 90 度支管并在另一根平行的螺旋風(fēng)管上面經(jīng)過(guò)如下圖： A spiral duct opened a brench duct up it, and pass the other duct shown in the following drawings 3）穿艙件通過(guò)大梁或艙壁如下圖： Peration pieces traverse beams or cabin wall shown in the following drawings 風(fēng)管通艙件形式及長(zhǎng)度如下表： Mode and length of peration pieces of spiral ducts shown in the following table 風(fēng)管穿越截面范圍（ A） area of cross section (A) 風(fēng)管類(lèi)型 duct type 穿艙件 penestration piece 穿過(guò) A＆ B級(jí)分割區(qū) cross A＆ B area 其它 other 備注 mark 代號(hào) code 長(zhǎng)度（ mm） lenght（ mm） 代號(hào) code A 矩形風(fēng)管 rectangular duct DS 200 PD 非絕熱螺旋風(fēng)管 uninsulated spiral duct G 200 PD 預(yù)絕熱螺旋風(fēng)管 insulated spiral duct PG 200 PD A≥ 矩形風(fēng)管 rectangular duct DL 900 PD 非絕熱螺旋風(fēng)管 uninsulated spiral duct GL 900 PD 預(yù)絕熱螺旋風(fēng)管 insulated spiral duct PGL 900 PD ……千錘百煉，軍工品質(zhì) —— 永昇中央空調(diào)…… PAGE 12 船用空調(diào)通風(fēng)系統(tǒng)安裝施工工藝規(guī)范 技術(shù)要求： Technology requirement： 1） 900mm長(zhǎng)的通艙件應(yīng)均勻分布在艙壁兩側(cè)，各 450mm長(zhǎng)。 ……千錘百煉，軍工品質(zhì) —— 永昇中央空調(diào)…… PAGE 16 船用空調(diào)通風(fēng)系統(tǒng)安裝施工工藝規(guī)范 Install duct on block we must spray sand and get rid of rust, then we can do some painting work. After finishing above work, we can install some outfittings in subsection item, general situation:aircondition duct, stainless duct galvanized duct, duct support, the other ventilation outfitting before vertical loading the block of hull and joining of fabricated section. 各分段通風(fēng)管安裝應(yīng)根據(jù)相應(yīng)分段風(fēng)管安裝圖，風(fēng)管（支架）加工零件圖和材料清單來(lái)組織安裝，檢查風(fēng)管等附件標(biāo)高是否與圖紙相符，甲板艙壁上開(kāi)孔是否符合要求。風(fēng)管支架無(wú)特殊要求時(shí)，應(yīng)符合以下要求： Installing support is the first step of duct installation. According to area of duct or site situation and GB, to choose which type of the duct. If no special reqirements of duct, we must obey these rules: 水平安裝的矩行風(fēng)管長(zhǎng)邊小于 400mm，其支架間距不超過(guò) 3m，大于或等于 400mm，其支架間距不超過(guò) 2m。 If the distance of support ＞ 3m(vertical installation), each duct should have more than two support. 風(fēng)管支架定位應(yīng)根據(jù)風(fēng)管安裝標(biāo)高來(lái)定，對(duì)于矩形風(fēng)管，它有風(fēng)管上標(biāo)高和下標(biāo)高兩種標(biāo)高；圓形風(fēng)管是以風(fēng)管中心作為標(biāo)高尺寸。另外在分段與分段之間設(shè)有合攏管，合攏管應(yīng)在分段合攏后才可安裝連接。風(fēng)管穿艙壁時(shí)應(yīng)有通艙件，如下圖 ： ……千錘百煉