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font-size: 14px;">當時由于基礎材料的不發達，主選材料的選擇范圍比較狹窄，用鋼、鋅、鋼板做通風管已經很先進了(當時空調大多用黑鋼板做管道)。因為工人的熱情，責任心強，工藝嫻熟，所以他們做出來的管子氣密性，比如咬口的連接都挺好的，保護層也很規整。</span></p><p style="text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">高層建筑的內走道一定要機械排煙嗎？</span></p><p style="text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">1、長度小于60m的內走道可開窗戶面積不應小于走道面積的2%。</span></p><p style="text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">2、排煙窗應設置在頂部，并應有方便的開啟裝置。</span></p><p style="text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">3.凈空小于12m的中庭可開啟天窗或高側窗的面積不應小于中庭面積的5%。</span></p><p style="text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">面對如此巨大的市場發展，提升核心競爭力是每個通風管道企業面臨的難題。所以符合標準的通風系統的設計、制造和安裝必然符合國家標準和企業的可持續發展規劃。</span></p><p style="text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">1.通風降溫：由于陽光照射建筑物、機器設備、人體等熱源，需要通風的地方空氣溫度高于室外。負壓風機能快速排出室內熱風，使室內溫度與室外溫度相等，車間內溫度不會升高。</span></p><p style="text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">二、氣流帶走人體熱量，氣流加速汗液蒸發，吸收人體熱量，從而使人體感到涼爽，如同自然風一樣涼爽。</span></p><p style="text-align: center; text-indent: 2em;"><img src="/data/upload/201910/1571893959127314.jpg" alt="白鐵通風管道加工廠.jpg" width="397" height="259" border="0" vspace="0" title="白鐵通風管道加工廠.jpg" style="width: 397px; height: 259px;"/></p><p><br/></p></div> <div class="xypg-detail-tags"> <div class="tags-title"> <h3>標簽</h3> <div class="baidu-share">  <div class="bdsharebuttonbox"> <a href="#" class="bds_more" data-cmd="more"></a> <a href="#" class="bds_tsina" data-cmd="tsina" title="分享到新浪微博"></a> <a href="#" class="bds_weixin" data-cmd="weixin" title="分享到微信"></a> <a href="#" class="bds_sqq" data-cmd="sqq" title="分享到QQ好友"></a> <a href="#" class="bds_isohu" data-cmd="isohu" title="分享到我的搜狐"></a> <a href="#" class="bds_tqq" data-cmd="tqq" 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