保溫性能 鍍鋅薄鋼板風(fēng)管:導(dǎo)熱系數(shù)很大(為60.4 W/m·K) ,無(wú)保溫性能,必須另外加包保溫層及保護(hù)層。

　　Thermal insulation performance of galvanized thin steel pipe: thermal conductivity is large (60.4 W/m / K), no thermal insulation performance, must add additional insulation layer and protective layer.

　　1)風(fēng)閥安裝前應(yīng)檢查框架結(jié)構(gòu)是否牢固，調(diào)節(jié)、制動(dòng)、定位等裝置是否準(zhǔn)確靈活。

　　1) before the installation of the air valve, check whether the frame structure is firm, the adjustment, braking, positioning and other devices are accurate and flexible.

　　2)風(fēng)閥的安裝同風(fēng)管的安裝，將其法蘭與風(fēng)管或設(shè)備的法蘭對(duì)正，加上密封墊片，上緊螺栓，使其與風(fēng)管或設(shè)備連接牢固、嚴(yán)密。

　　2) the installation of the air valve and the installation of the air duct, the flange of the flange and the air pipe or equipment flange is right, plus the sealing gasket, tighten the bolt, so that it is connected with the air pipe or equipment firmly, tight.

　　3)風(fēng)閥安裝時(shí)，應(yīng)使閥件的操縱裝置便于人工操作。其安裝方向應(yīng)與閥體外殼標(biāo)注的方向一致。

　　3) when the air valve is installed, the valve handling device should be operated manually. The installation direction should be consistent with the direction of the valve body marking.

　　4)安裝完的風(fēng)閥，應(yīng)在閥體外殼上有明顯和準(zhǔn)確的開(kāi)啟方向、開(kāi)啟程度的標(biāo)志。

　　4) the installation of the air valve should be marked on the valve body shell clear and accurate opening direction, opening degree.

　　5)防火閥的易熔片應(yīng)安裝在風(fēng)管的迎風(fēng)側(cè)，其熔點(diǎn)溫度應(yīng)符合設(shè)計(jì)要求。

　　5) fusible alloy fire valve should be installed on the windward side of the wind pipe, the melting temperature should meet the design requirements.

　　在風(fēng)管加工處保溫厚度不易保證或無(wú)保溫,將產(chǎn)生冷橋現(xiàn)象,風(fēng)管壁面保溫層的覆蓋均勻度有時(shí)也會(huì)因安裝凈空不足而不易保證。 無(wú)機(jī)玻璃鋼風(fēng)管:導(dǎo)熱系數(shù)大(為0.5W/m·K) ,無(wú)保溫性能,必須另外加包保溫層及保護(hù)層,保溫層特性同鍍鋅薄鋼板風(fēng)管。

　　In the air duct processing department, the insulation thickness is not easy to guarantee or no heat preservation, the cold bridge phenomenon will occur, and the uniformity of the insulation layer of the wall of the air duct will sometimes be difficult to guarantee because of insufficient installation clearance. Inorganic glass fiber reinforced plastic air duct: large thermal conductivity (0.5W/m = K), no thermal insulation performance, must add additional insulation layer and protective layer, insulation layer characteristics with galvanized thin steel pipe duct.

　　復(fù)合玻纖板風(fēng)管:導(dǎo)熱系數(shù)小(平均溫度24℃時(shí)是0.029W/m·K,70℃時(shí)是0.04W/m·K) ,特別是外表復(fù)合鋁箔布具有很高的熱反射能力。

　　Composite glass fiber board: the coefficient of thermal conductivity is small (average temperature is 24 K, 0.029W/m, K, 0.04W/m at 70 degrees), especially the appearance of composite aluminum foil cloth has high heat reflection ability.

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　　The above is Shandong ventilation pipe processing today's share, you are satisfied, welcome to pay attention to our website: http://m.bjhgf.com/ and pay attention to our products, we will provide you with good products, sincerely willing to establish a cooperative relationship with you.

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