排煙罩在我們的日常生活中十分常見，隨著經濟的不斷發展，人們紛紛選擇該設備，那你知道排煙罩中風管排列的要點有哪些嗎？是不是不太清楚？下面就和小編一起來看看吧。

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.

風管排列無法蘭銜接

Air duct arrangement without flange connection

①插條式銜接：主要用于矩形風管銜接。將不同方式的插條插入風管兩端，然后壓實。

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抱箍式銜接：主要用于鋼板圓風管和螺旋風管銜接，先把每一管段的兩端軋出鼓筋，并使其一端縮為小口。裝置時按氣流方向把小口插入大口，外面用鋼制抱箍將兩端的鼓箍抱緊銜接，后用螺栓穿在耳環中間固定擰緊。

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軟管式銜接：主要用于風管與部件(如散熱器、靜壓箱側送風口等)的相連。裝置時軟管兩端套在銜接的管外，然后用特別軟的卡把軟管箍緊。

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插接式銜接：主要用于矩形或圓形風管銜接。先制造銜接管，然后插入兩側風管，再用拉鉚釘將其嚴密固定。

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將風管法蘭外表的異物和積水清算掉，并擦潔凈。

① Clear the foreign matters and accumulated water on the surface of the air duct flange and wipe it clean.

②從法蘭一角開端粘貼膠帶，膠帶端頭應略善于法蘭。

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沿法蘭平均平整地粘貼，濟南排煙罩廠家表示并在粘貼過程中用手將其按實，不得零落，接口處要緊密，各部位均不得凸入風管內，沿法蘭粘貼一周后與起端穿插搭接，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剝去隔離紙。

④ Strip the isolation paper.

為保證法蘭接口緊密性，法蘭之間應有墊料。

To ensure the tightness of flange interface, there shall be padding between flanges.

墊法蘭墊料和法蘭銜接時，應留意的問題。

Matters needing attention when flange gasket is connected with flange.

①正確選用墊料，防止用錯墊料。

① Correctly select padding materials to prevent wrong padding materials.

②法蘭外表應潔凈無異物。

② The flange surface shall be clean and free of foreign matters.

③法蘭墊料不能擠入或凸入管內，否則會增大活動阻力，增加管內積塵。

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法蘭銜接后，濟南排煙罩廠家建議要嚴禁往法蘭縫隙填塞墊料。

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銜接法蘭的螺母應在同一側。

⑤ The nuts of the connecting flanges shall be on the same side.

⑥不銹鋼法蘭銜接用螺栓，宜用同材質不銹鋼螺栓。

⑥ Stainless steel bolts of the same material should be used for connecting stainless steel flanges.

⑦鋁板風管法蘭銜接應采用鍍鋅螺栓，并在法蘭兩側墊鍍鋅墊圈。

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聚氯乙烯風管法蘭和玻璃鋼法蘭銜接采用鍍鋅螺栓。

⑧ Galvanized bolts are used for connection of PVC air duct flange and FRP flange.

法蘭連按時，請求規則墊料把兩個法蘭對正，穿螺栓并戴上螺母，(留意：螺母要在同一側)，暫時不要上緊，直到一切螺栓都穿上后，再把螺栓擰緊。連好風管應以兩端法蘭為準，拉線撿查風管銜接能否平直。

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.

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