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通風(fēng)管道的安裝和制作是一個技術(shù)性很強的工作，以下是一些關(guān)鍵的要點：

The installation and production of ventilation ducts is a highly technical task, and the following are some key points:

風(fēng)管材料選擇：根據(jù)所需輸送的氣體類型和輸送管道的距離確定通風(fēng)管道的尺寸和材質(zhì)。材料通常包括鍍鋅鋼板、不銹鋼板等，并且必須符合國家的安全標(biāo)準(zhǔn)和制造標(biāo)準(zhǔn)。

Material selection for air ducts: Determine the size and material of the ventilation ducts based on the type of gas to be transported and the distance between the ducts. The materials usually include galvanized steel plates, stainless steel plates, etc., and must comply with national safety standards and manufacturing standards.

風(fēng)管厚度：普通通風(fēng)管厚度為1.0mm，消防防排煙風(fēng)管為。

Duct thickness: The thickness of ordinary ventilation ducts is 1.0mm, while that of fire protection and smoke exhaust ducts is.

風(fēng)管制作準(zhǔn)備：風(fēng)管均采用內(nèi)弧外直型；當(dāng)風(fēng)管長邊≥500mm時，必須設(shè)置導(dǎo)流葉片。加工前根據(jù)圖紙及現(xiàn)場具體情況，繪制風(fēng)管加工圖，作出風(fēng)管加工計劃。

Preparation for duct production: All ducts are of the inner arc and outer straight type; When the length of the air duct is ≥ 500mm, guide vanes must be installed. Before processing, draw a duct processing diagram and make a duct processing plan based on the drawings and specific on-site conditions.

風(fēng)管下料：下料采用剪板機、聯(lián)合咬口機、彎頭咬口機、折方機加工、成形。風(fēng)管咬口均勻，平、無凸瘤和虛咬現(xiàn)象。

Duct cutting: Cutting is carried out using shearing machines, joint biting machines, elbow biting machines, and folding machines for processing and forming. The bite of the air duct is uniform, flat, without protrusions or false bites.

法蘭制作安裝：法蘭與風(fēng)管軸線垂直，鉚釘采用鍍鋅鉚釘，鉚釘間距均勻且不超過150mm，法蘭翻邊6～9mm，法蘭與風(fēng)管接觸緊密，無孔洞及超皺現(xiàn)象。

Flange production and installation: The flange is perpendicular to the axis of the air duct, and galvanized rivets are used with uniform spacing of no more than 150mm. The flange flange is flanged by 6-9mm, and the flange is in close contact with the air duct without holes or wrinkles.

風(fēng)管加固：按照設(shè)計圖紙，采取在風(fēng)管鋼板上加工楞筋的方法加固。

Duct reinforcement: According to the design drawings, the method of reinforcing by processing ribs on the steel plate of the duct is adopted.

風(fēng)管連接：風(fēng)管連接應(yīng)嚴(yán)密牢固，法蘭的連接螺栓應(yīng)均勻擰緊，螺母宜在同一側(cè)。對于無法蘭連接的風(fēng)管，接口處應(yīng)嚴(yán)密、牢固，矩形風(fēng)管四角必須有定位及密封措施。

Air duct connection: The air duct connection should be tight and firm, the connecting bolts of the flange should be evenly tightened, and the nuts should be on the same side. For air ducts that cannot be connected by orchids, the interface should be tight and firm, and the corners of rectangular air ducts must have positioning and sealing measures.

風(fēng)管安裝就位：風(fēng)管應(yīng)保持清潔，管內(nèi)不應(yīng)有雜物和積塵。風(fēng)管安裝的位置、標(biāo)高、走向，應(yīng)符合設(shè)計要求。現(xiàn)場風(fēng)管接口的配置應(yīng)合理，不得縮小其有效截面。

Air duct installation in place: The air duct should be kept clean, and there should be no debris or dust inside the duct. The installation position, elevation, and direction of the air duct should meet the design requirements. The configuration of the on-site air duct interface should be reasonable and its effective cross-section should not be reduced.

風(fēng)管排列無法蘭連接：包括抱箍式連接、插接式連接、插條式連接和軟管式連接等多種方式。

The arrangement of air ducts without flange connections includes various methods such as clamp connections, plug-in connections, strip connections, and hose connections.

風(fēng)管系統(tǒng)安裝：風(fēng)管應(yīng)垂直或傾斜敷設(shè)，傾斜敷設(shè)時，風(fēng)管與水平夾角宜大于或等于45°。

Installation of air duct system: Air ducts should be laid vertically or diagonally. When laying diagonally, the angle between the air duct and the horizontal should be greater than or equal to 45 °.

風(fēng)管與設(shè)備連接：風(fēng)管與設(shè)備、風(fēng)閥等連接時，宜采用角鋼法蘭。兩法蘭之間應(yīng)使用密封性能良好、有一定彈性且符合相應(yīng)耐火極限要求的墊料。

Connection between air ducts and equipment: When connecting air ducts and equipment, air valves, etc., angle steel flanges should be used. A gasket with good sealing performance, certain elasticity, and corresponding fire resistance limit requirements should be used between the two flanges.

非金屬及復(fù)合材料風(fēng)管：除無機玻璃鋼風(fēng)管，其他非金屬及復(fù)合材料風(fēng)管穿過需密封的樓板或墻體時，應(yīng)采用金屬短管連接或外包金屬套管安裝。

Non metallic and composite material air ducts: Except for inorganic fiberglass air ducts, other non-metallic and composite material air ducts that pass through sealed floors or walls should be connected with metal short pipes or installed with metal sleeves.

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