風管制作施工有哪些要求

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　　按截面形狀，風管可分為圓形風管，矩形風管，扁圓風管等多種，其中圓形風管阻力較小的高度尺寸較大，制作復雜。所以應(yīng)用以矩形風管為主。下來一起來了解一下風管制作施工中的一些要求：

　　According to the cross-section shape, the air duct can be divided into circular air duct, rectangular air duct, flat round air duct and so on. Among them, the height dimension with the smallest resistance of the circular air duct is the largest and the manufacture is complex. So rectangular duct is the main application. Come down to understand some requirements in the construction of air conditioning:

　?。?）風管制作施工應(yīng)按設(shè)計規(guī)定，風管（包括三通、彎頭的功能配件）采用相應(yīng)的合格材料，厚度按圖紙施工。

　　(1) The construction of air duct shall be carried out in accordance with the design stipulations. The air duct (including three-way and elbow functional parts) shall be constructed with corresponding qualified materials and the thickness shall be constructed according to the drawings.

　?。?）圓形彎管半徑應(yīng)大于等于2倍彎管直徑。

　　(2) The radius of the circular elbow should be greater than or equal to 2 times the diameter of the elbow.

　?。?）矩形風管的彎管，可采用內(nèi)弧或內(nèi)斜線彎管。當邊長大于或等于500mm時，應(yīng)設(shè)置導流行。

　　(3) The bend of rectangular duct can be made by inner arc or inner oblique line. When the edge length is greater than or equal to 500 mm, the guide should be set.

　?。?）風管與配件的表面平整，圓弧應(yīng)均勻。咬口縫應(yīng)嚴密、寬度應(yīng)一致，并不得有十字交叉的拼接縫。

　　(5) The surface of air duct and fittings should be smooth and the arc should be uniform. The bite seam shall be tight and uniform in width, and there shall be no cross-stitching seam.

　?。?）不同系統(tǒng)風管的連接方式要符合相應(yīng)的要求根據(jù)，送排風采用共板法蘭連接方式，防排煙系統(tǒng)采用角鋼法蘭連接。

　　(6) The connection modes of air pipes in different systems should meet the corresponding requirements. Common plate flange connection is used for air supply and exhaust, and angle steel flange connection is used for smoke prevention and exhaust system.

　?。?）共板法蘭連接風管四角處的角件與法蘭四角接口的固定應(yīng)緊貼，端面應(yīng)平整，相連處不應(yīng)有大于2mm的連續(xù)穿透縫。

　　(7) The corner parts of the common plate flange connecting the air duct at the four corners should be fixed tightly with the four corners of the flange, the end surface should be flat, and there should be no more than 2 mm continuous penetration joints at the joint.

　?。?）薄鋼板法蘭的彈性插條、彈簧夾的緊固螺栓(鉚釘)應(yīng)分布均勻，間距不應(yīng)大于150mm，較外端的連接件距風管邊緣不應(yīng)大于100mm。

　　(8) The elastic inserts of the thin steel plate flange and the fastening bolts (rivets) of the spring clamp should be evenly distributed, and the spacing should not be greater than 150 mm, and the connecting parts of the outermost end should not be greater than 100 mm from the edge of the air duct.

　?。?）組合型薄鋼板法蘭與風管管壁的組合，應(yīng)調(diào)整法蘭口的平面度后，再將法蘭條與風管鉚接（或本體鉚接）。

　　(9) For the combination of composite thin steel plate flange and air duct wall, the flange flange should be riveted (or riveted) with air duct after adjusting flange flatness.

　　（10）風管的密封，應(yīng)以板材連接的密封為主，通風管道可用普通膠條，防排煙系統(tǒng)要用不然密封材料。

　　(10) The sealing of air duct should be mainly made of plate connection. Ventilation duct can be made of ordinary tape, and smoke control and exhaust system should be made of other sealing materials.

　?。?1）當矩形風管邊長大于或等于630mm和保溫風管邊長大于或等于800mm，且其管段長度大于1200mm時，均采取加固措施，采用直徑為8mm通絲螺桿加固。對邊長小于或等于800mm的風管，宜采用楞筋、楞線的方法加固。

　　(11) When the side of rectangular duct is larger than or equal to 630 mm and the side of insulating duct is larger than or equal to 800 mm, and the length of duct section is longer than 1200 mm, reinforcement measures are adopted, with 8 mm diameter through screw. For air ducts whose opposite side length is less than or equal to 800mm, it is advisable to reinforce them with corrugated ribs and lines.

　?。?2）法蘭端面粘貼密封膠條并緊固法蘭四角螺絲后，方可安裝插條或彈簧夾、頂絲卡。彈簧夾、頂絲卡不應(yīng)松動。

　　(12) Installation of sockets or spring clips and top screw clamps can be achieved only after sealing tape is affixed to the end face of the flange and four corner screws of the flange are fastened. Spring clamp and top wire clamp should not be loosened.