神马av_日韩第一页_免费精品一区_神马AV_神马久久久久久久久_日韩无码第一页_色哒哒_无码人妻熟妇av又粗又_国产69久久久欧美黑人A片_日韩欧美亚洲_无码第一页_神马午夜精品91_无码人妻熟妇av又粗,日韩免费人妻无码专区蜜桃,亚洲阿大香蕉,欧美亚洲男人天堂,国产无码精品一区二区,揉着我的奶从后面进去视频,免费全部黄A片免费播放软件,国产色中色,免费看的久久久久,天美传媒部在线观看,久久久久久亚洲综合,大香蕉日韩成人在线视频,久久无码潮喷A片无码高潮动漫,精品久久亚洲熟女,国产欧美精品aaaaa久久,直男国产飞机杯,我的公把我弄高潮了视频,免费的精品一区二区三区片,国产日韩欧美三级,亚州A级片,自拍偷拍亚洲porn,少妇水多A片太爽了,日本久操,成人午夜福利无码不卡视频,国产一区二区不卡亚洲涩情,日韩欧美亚洲综合久久,国产亚洲精品久久孕妇呦呦你懂,国产又粗又长又大精品A片,自偷自拍亚洲综合精品第一页,亚洲欧美熟妇久久久久久久久 ,香蕉视频操逼奶子

通風管道的安裝和制作是一個技術性很強的工作，以下是一些關鍵的要點：

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

風管材料選擇：根據所需輸送的氣體類型和輸送管道的距離確定通風管道的尺寸和材質。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準和制造標準。

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.

風管厚度：普通通風管厚度為1.0mm，消防防排煙風管為。

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

風管制作準備：風管均采用內弧外直型；當風管長邊≥500mm時，必須設置導流葉片。加工前根據圖紙及現場具體情況，繪制風管加工圖，作出風管加工計劃。

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.

風管下料：下料采用剪板機、聯合咬口機、彎頭咬口機、折方機加工、成形。風管咬口均勻，平、無凸瘤和虛咬現象。

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，法蘭與風管接觸緊密，無孔洞及超皺現象。

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.

風管加固：按照設計圖紙，采取在風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.

風管連接：風管連接應嚴密牢固，法蘭的連接螺栓應均勻擰緊，螺母宜在同一側。對于無法蘭連接的風管，接口處應嚴密、牢固，矩形風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.

風管安裝就位：風管應保持清潔，管內不應有雜物和積塵。風管安裝的位置、標高、走向，應符合設計要求。現場風管接口的配置應合理，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.

風管系統安裝：風管應垂直或傾斜敷設，傾斜敷設時，風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 °.

風管與設備連接：風管與設備、風閥等連接時，宜采用角鋼法蘭。兩法蘭之間應使用密封性能良好、有一定彈性且符合相應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.

非金屬及復合材料風管：除無機玻璃鋼風管，其他非金屬及復合材料風管穿過需密封的樓板或墻體時，應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.

本文由山東通風管道為您提供，我們的網站http://m.xmxdgg.com我們將以全心全意的熱情為您提供服務，歡迎您的訪問

This article is provided by Shandong Ventilation Duct for you on our website http://m.xmxdgg.com We will provide you with wholehearted enthusiasm and welcome your visit