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<p>　　PP風管一般要求不超過30°，降低了排氣出口的出口速度，減少了出口動壓損失；聚丙烯通風系統各部件與設備之間的連接應合理，PP風管的布置應合理。PP風管的布置直接關系到通風空調系統的總平面圖布置，與工藝、電氣、排水等專業密切相關。PP風管安裝方便，應相互協調配合。除塵系統的排氣點不宜過多，以平衡各支管之間的阻力。如果排氣點過多，PP風管的技術參數多，可采用大截面歧管連接各支管。</p><p>　　收集管內流速不應超過3m/s，收集管下部設有卸灰裝置。除塵PP風管盡量垂直或斜向敷設，斜向敷設時與水平面的夾角不大于45°。如需水平敷設或傾角小于30°時，應采取措施，如增加流量、設置清洗口。PP風管是循環空氣、處理有害氣體濃度的基本措施。PP風管不僅結構好，而且相對緊密，具有耐酸、耐堿性能，起到非常重要的作用。PP風管安裝前，應清楚內外雜物，做好清潔和保護。</p><p>　　PP風管的安裝位置、標高和方向應符合設計要求?，F場PP風管接口的配置不應減少其有效截面；連接法蘭的螺栓應均勻擰緊，螺帽應在同一側；PP風管接口的連接應緊密牢固。PP風管法蘭的墊片材料應滿足系統功能要求，厚度不小于3mm。墊片不應伸入管道內，也不應伸出法蘭外；柔性短管的安裝應適度嚴密，無明顯扭曲；PP風管與磚、混凝土風管的連接接口應沿氣流方向插入，并采取密封措施。PP風管穿過屋頂的地方應設置防雨裝置。</p><p>　　塑料不能做成白色，所以消費者往往認為白色更好。其實這種觀點是片面的。隨著技術的提高，顏色已經不是區分PP風管的標準。管道好壞不能解決問題。如果你觸摸它，粗顆?？赡軙c其他雜質混合。</p><p><br/></p></div> <script type="text/javascript"> document.getElementById("new_conts").onselectstart = document.getElementById("new_conts").oncontextmenu = function(){return false;} </script> <div class="wzzzxx"> <h4>頁面版權備注</h4> <div class="f4n3h5q">本文版權歸 <b>上海零遠環?？萍加邢薰?/b> 所有；</div> <div 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