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<p>手機(jī)：18560101238</p><p>手機(jī)：13064068958 <br/></p><p>郵箱：2550419355@qq.com</p><p>網(wǎng)址：</p><p>地址：山東濟(jì)南章丘區(qū)刁鎮(zhèn)經(jīng)濟(jì)開發(fā)區(qū)</p> </div> </div> </div> <div id="qi79ntwaa" class="page-message-img"> <a href="http:///inquiry/"><img src="http:///data/images/other/20190701101004_812.jpg" alt=""></a> </div> </div> </div> <div id="qi79ntwaa" class="page-wrap-right"> <div id="qi79ntwaa" class="xypg-right-content">  <div id="qi79ntwaa" class="xypg-news-detail"> <h1 class="xypg-detail-title">詳解下通風(fēng)管道與附件的制作及安裝</h1> <div id="qi79ntwaa" class="xypg-detail-info-bar"> <div id="qi79ntwaa" class="detail-info-time"><i class="iconfont icon-shijian"></i>2021-03-23</div> <div id="qi79ntwaa" class="detail-info-numbers"><i class="iconfont icon-chakan"></i><script src="http:///data/include/newshits.php?id=649"></script>次</div> </div> <div id="qi79ntwaa" class="xypg-detail-con"><p style="line-height: 1.75em; text-indent: 2em;"><span style="font-size: 16px;"><a href='http:////' target='_blank' class='key_tag'><font><strong>通風(fēng)管道</strong></font></a>與附件的制作及裝置在道密閉閥門至工程口部的管道與配件，應(yīng)選用厚2~3mm的鋼板焊接制作。其焊縫應(yīng)豐滿、均勻、緊密，染毒區(qū)的<a href='http:///product/cpfl1e1/' target='_blank' class='key_tag'><font><strong>通風(fēng)管</strong></font></a>道應(yīng)選用焊接銜接。通風(fēng)管道與密閉閥門應(yīng)選用帶密封槽的法蘭銜接，其接觸應(yīng)平坦。</span></p><p style="line-height: 1.75em; text-indent: 2em;"><span style="font-size: 16px;">法蘭墊圈應(yīng)選用整圈無接口橡膠密封圈，主體工程內(nèi)通風(fēng)管與配件的鋼板厚度應(yīng)符合設(shè)計(jì)要求。當(dāng)設(shè)計(jì)無具體要求時(shí)。鋼板厚度應(yīng)大于0.75mm.工程測(cè)壓管在防護(hù)密閉門外的一端應(yīng)設(shè)有向下的彎頭；另一端宜設(shè)在通風(fēng)機(jī)房或操控室，并應(yīng)裝置球閥。</span></p><p style="line-height: 1.75em; text-indent: 2em;"><span style="font-size: 16px;">通過防毒通道的測(cè)壓管，其接口應(yīng)選用焊接，通風(fēng)管的測(cè)定孔、洗消取樣管應(yīng)與管一起制作。測(cè)定孔和洗消取樣管應(yīng)封堵，通風(fēng)管內(nèi)氣流方向、閥門啟閉方向及敞開度，應(yīng)標(biāo)明明晰。</span></p><p style="line-height: 1.75em; text-indent: 2em;"><span style="font-size: 16px;">給水排水管道、供油管道與附件的裝置，壓力排水管宜選用給水鑄鐵管、鍍鋅管、鍍鋅鋼管或UPVC塑料管，其接口應(yīng)選用油麻填充或石棉水泥抹口，不得選用水泥砂漿抹口，油管絲扣銜接的填料，應(yīng)選用甘油和紅丹粉的調(diào)和物，不得選用鉛油麻絲。油管法蘭銜接的墊板，應(yīng)選用兩面涂石墨的石棉紙板，不得選用一般橡膠墊圈。</span></p><p style="line-height: 1.75em; text-indent: 2em;"><span style="font-size: 16px;"></span></p><p style="text-align: center"><img src="/data/ueditor/php/data/upload/image/20210323/1616464909341582.jpg" title="通風(fēng)管道" alt="通風(fēng)管道" width="800" height="640" border="0" vspace="0" style="width: 800px; height: 640px;"/></p><p style="line-height: 1.75em; text-indent: 2em;"><span style="font-size: 16px;"></span><br/></p><p style="line-height: 1.75em; text-indent: 2em;"><span style="font-size: 16px;">通風(fēng)系統(tǒng)的設(shè)計(jì)</span></p><p style="line-height: 1.75em; text-indent: 2em;"><span style="font-size: 16px;">一般是在系統(tǒng)及風(fēng)量已確定的基礎(chǔ)上進(jìn)行的，通過計(jì)算風(fēng)管的段面尺寸和阻力，進(jìn)而確定風(fēng)機(jī)的型號(hào)和動(dòng)力消耗。常用的系統(tǒng)設(shè)計(jì)計(jì)算方法是假定流速法，它的計(jì)算步驟和方法如下：</span></p><p style="line-height: 1.75em; text-indent: 2em;"><span style="font-size: 16px;">(1) 繪制通風(fēng)系統(tǒng)軸側(cè)圖，對(duì)各管段進(jìn)行編號(hào)，標(biāo)注長(zhǎng)度和風(fēng)量。管段長(zhǎng)度一般按兩管件間中心線長(zhǎng)度計(jì)算，不扣除管件(如三通、彎頭)本身的長(zhǎng)度。</span></p><p style="line-height: 1.75em; text-indent: 2em;"><span style="font-size: 16px;">(2) 選擇風(fēng)管內(nèi)空氣流速</span></p><p style="line-height: 1.75em; text-indent: 2em;"><span style="font-size: 16px;">風(fēng)管內(nèi)的空氣流速對(duì)通風(fēng)系統(tǒng)的經(jīng)濟(jì)性有很大影響，必須通過全面的技術(shù)經(jīng)濟(jì)比較選定適當(dāng)?shù)牧魉佟?/span></p><p style="line-height: 1.75em; text-indent: 2em;"><span style="font-size: 16px;">(3) 根據(jù)各風(fēng)管的風(fēng)量和選擇的流速確定各管段的斷面尺寸，計(jì)算摩擦阻力和局部阻力。</span></p><p style="line-height: 1.75em; text-indent: 2em;"><span style="font-size: 16px;">風(fēng)管斷面尺寸，應(yīng)采用通風(fēng)管道統(tǒng)一規(guī)格。世紀(jì)星介紹風(fēng)管斷面尺寸確定后，應(yīng)按管內(nèi)實(shí)際流速計(jì)算阻力。阻力計(jì)算應(yīng)從最不利環(huán)路(即阻力大的環(huán)路)開始。 </span></p><p><br/></p></div> <div id="qi79ntwaa" 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