排烟罩在我们的日常生活中十分常见，随着经济的不断发展，人们纷纷选择该设备，那你知道排烟罩中风管排列的要点有哪些吗？是不是不太清楚？下面就和小编一起来看看吧。
Smoke exhaust hood is very common in our daily life. With the continuous development of economy, people choose this equipment one after another. Do you know the key points of the arrangement of smoke exhaust hood's air duct? Isn't it clear? Let's take a look with Xiaobian.
风管排列无法兰衔接
Air duct arrangement without flange connection
①插条式衔接：主要用于矩形风管衔接。将不同方式的插条插入风管两端，然后压实。
① Insert connection: mainly used for connection of rectangular air duct. Insert cuttings in different ways into both ends of the duct, and then compact.
②抱箍式衔接：主要用于钢板圆风管和螺旋风管衔接，先把每一管段的两端轧出鼓筋，并使其一端缩为小口。装置时按气流方向把小口插入大口，外面用钢制抱箍将两端的鼓箍抱紧衔接，后用螺栓穿在耳环中间固定拧紧。
② Hoop type connection: it is mainly used for the connection of steel plate round air duct and spiral air duct. Firstly, the two ends of each pipe section are rolled out and the one end is reduced to a small mouth. When installing the device, insert the small opening into the large opening according to the air flow direction, use steel hoops to tightly connect the drum hoops at both ends, and then use bolts to thread them in the middle of the earrings for fixation and tightening.
③软管式衔接：主要用于风管与部件(如散热器、静压箱侧送风口等)的相连。装置时软管两端套在衔接的管外，然后用特别软的卡把软管箍紧。
③ Hose connection: it is mainly used to connect the air duct and components (such as radiator, plenum side air supply outlet, etc.). When installing, both ends of the hose are sleeved outside the connected pipe, and then the hose is clamped tightly with a particularly soft clamp.
④插接式衔接：主要用于矩形或圆形风管衔接。先制造衔接管，然后插入两侧风管，再用拉铆钉将其严密固定。
④ Plug in connection: mainly used for connection of rectangular or circular air ducts. First, the connecting pipe shall be manufactured, then the air ducts on both sides shall be inserted, and then the rivets shall be used to tightly fix it.
①将风管法兰外表的异物和积水清算掉，并擦洁净。
① Clear the foreign matters and accumulated water on the surface of the air duct flange and wipe it clean.
②从法兰一角开端粘贴胶带，胶带端头应略善于法兰。
② Paste the adhesive tape from one corner of the flange, and the end of the adhesive tape should be slightly better than the flange.
③沿法兰平均平整地粘贴，济南排烟罩厂家表示并在粘贴过程中用手将其按实，不得零落，接口处要紧密，各部位均不得凸入风管内，沿法兰粘贴一周后与起端穿插搭接，剪去多余局部。
③ It shall be pasted evenly and smoothly along the flange. The manufacturer of Jinan smoke exhaust hood said that it shall be firmly pressed by hand during the pasting process, and the joints shall be tight. All parts shall not protrude into the air duct. After one week of pasting along the flange, it shall be overlapped with the starting end, and the excess parts shall be cut off.
④剥去隔离纸。
④ Strip the isolation paper.
为保证法兰接口紧密性，法兰之间应有垫料。
To ensure the tightness of flange interface, there shall be padding between flanges.
垫法兰垫料和法兰衔接时，应留意的问题。
Matters needing attention when flange gasket is connected with flange.
①正确选用垫料，防止用错垫料。
① Correctly select padding materials to prevent wrong padding materials.
②法兰外表应洁净无异物。
② The flange surface shall be clean and free of foreign matters.
③法兰垫料不能挤入或凸入管内，否则会增大活动阻力，增加管内积尘。
③ The flange gasket shall not be squeezed or protruded into the pipe, otherwise it will increase the moving resistance and increase the dust accumulation in the pipe.
④法兰衔接后，
济南排烟罩厂家建议要严禁往法兰缝隙填塞垫料。
④ After the flange is connected, the manufacturer of Jinan exhaust hood suggests that it is strictly prohibited to fill the flange gap with padding.
⑤衔接法兰的螺母应在同一侧。
⑤ The nuts of the connecting flanges shall be on the same side.
⑥不锈钢法兰衔接用螺栓，宜用同材质不锈钢螺栓。
⑥ Stainless steel bolts of the same material should be used for connecting stainless steel flanges.
⑦铝板风管法兰衔接应采用镀锌螺栓，并在法兰两侧垫镀锌垫圈。
⑦ Galvanized bolts shall be used for the flange connection of aluminum sheet air duct, and galvanized washers shall be padded on both sides of the flange.
⑧聚氯乙烯风管法兰和玻璃钢法兰衔接采用镀锌螺栓。
⑧ Galvanized bolts are used for connection of PVC air duct flange and FRP flange.
法兰连按时，请求规则垫料把两个法兰对正，穿螺栓并戴上螺母，(留意：螺母要在同一侧)，暂时不要上紧，直到一切螺栓都穿上后，再把螺栓拧紧。连好风管应以两端法兰为准，拉线捡查风管衔接能否平直。
When connecting the flanges, request regular padding to align the two flanges, thread the bolts and put on the nuts (Note: the nuts should be on the same side), and do not tighten them for the time being until all the bolts are threaded, and then tighten the bolts. The connection of air duct shall be subject to the flanges at both ends, and the cable shall be used to check whether the connection of air duct is straight.
The above is the relevant content about the problem shared for you today. I hope it can help you. If you want to know more, you can contact us by phone or follow our website http://www.jnqsg.com 。
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