濟南排煙罩的作用是使加速空氣的循環，幫助室內的空氣的循環，降低有害氣體和溫室氣體的濃度的一種基本設施，具有一定的防火性能，在輸送有害氣體時有一定的抵御性能。

　　The ventilation pipe is the role of the accelerating air circulation and help the indoor air circulation, reduce the concentration of harmful gas is a kind of basic facilities and greenhouse gases, has certain fire performance, the performance of the protection in the transport of harmful gases.

　　風管密封功能優越。由于是機械加工，能削減報酬操作掉誤，確保風管緊密，漏風量遠小于現行標準規則值;資料用量削減。因為螺旋式風管單元強度大于通俗風管，故同類規格風管所用的卷材厚度可以減小一個型號，且風管節長比通俗咬口式風管大，相同長度的風管節口數目分明削減。

　　The wind pipe sealing function is superior. Due to mechanical processing, the utility model can reduce the remuneration, operate the mistake, ensure the tight air pipe, and the air leakage is much smaller than the current standard rule value; the data consumption is reduced. Because the spiral wind pipe unit strength is greater than the popular wind, the wind pipe specifications with similar membrane thickness can be reduced to a model, and the wind pipe is longer than the popular bite type wind pipe, the same length of the wind pipe port number clear cut.

　　螺旋式通風管道作為一種新型的風管施工工藝，其優勢不言而喻、美觀、強度大、機械主動化水平高、加工制造速度快以及能削減裝置任務量，大大進步了任務效率等。

　　Spiral type ventilation pipe as a new type of wind pipe construction technology, its advantage is self-evident, beautiful appearance, high strength, high degree of automation, mechanical processing speed and can reduce device workload, greatly improve the efficiency of the task.

　　風管密封功能優越。由于是機械加工，能削減報酬操作掉誤，確保風管緊密，漏風量遠小于現行標準規則值;資料用量削減。因為螺旋式風管單元強度大于通俗風管，故同類規格風管所用的卷材厚度可以減小一個型號，且風管節長比通俗咬口式風管大，相同長度的風管節口數目分明削減。

　　The wind pipe sealing function is superior. Due to mechanical processing, the utility model can reduce the remuneration, operate the mistake, ensure the tight air pipe, and the air leakage is much smaller than the current standard rule value; the data consumption is reduced. Because the spiral wind pipe unit strength is greater than the popular wind, the wind pipe specifications with similar membrane thickness can be reduced to a model, and the wind pipe is longer than the popular bite type wind pipe, the same length of the wind pipe port number clear cut.

　　外觀質量高。成形后的風管內壁潤滑，外壁流利;風管強度大。由于外壁咬口構成的螺旋線棱筋平均散布，起到一個平均增強筋的效果，其單元強度大于通俗咬口式風管。

　　High quality appearance. The inner wall of the air pipe is lubricated and the outer wall is fluent; the air duct is strong in intensity. Because of the average dispersion of the spiral ribs of the screw formed by the outer wall, the strength of the reinforcing bar is stronger than that of the popular bite type wind pipe.

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