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clearfix"><div id="feqncoq" class="twoCol"><div id="3lxetu2" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/second-_wjgj/">五金、工具</a>?<a href="http://www.cdcfah.com/cp/third-wjgj_guanjianbi/">管件</a>?遼寧人孔哪家強鑄造輝煌河北海浩高壓法蘭管件供應(yīng)</p><div id="j3qh7hg" class="leftbox clearfix"><h1>遼寧人孔哪家強鑄造輝煌河北海浩高壓法蘭管件供應(yīng)</h1><div id="32koiu7" class="proBig"><div id="deqip8j" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/7/4/17/636978582421523305_hbhhgs_9897495.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="txpho3k" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/7/4/17/636978582421523305_hbhhgs_9897495.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="utamoqu" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>河北省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>遼寧人孔哪家強</p><p><span>***更新：</span>2020-06-09 13:06:48</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="2hdfx2j" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">河北海浩高壓法蘭管件集團有限公司</a></p><p><span>聯(lián)系人：</span>董學(xué)文</p><p><span>郵箱: </span>1390756017@qq.com</p><p><span>電話: </span>15028729866</p><p><span>傳真: </span>0317_6866720</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0317-6866720</p><p><span>地址: </span>河北省孟村縣辛大路付林路段</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="7fro2ur" class="page-proshow02"><p class="title">詳細說明</p><div id="onebnub" class="box"><p><p style="text-indent:25px">地下綜合通信管道人孔方式的設(shè)置人孔設(shè)置方式可以分為3種。（1）各管線單位**設(shè)置人孔。地下綜合通信管道各管線單位如果能**設(shè)置人孔，當(dāng)然很好，不僅施工維護方便，而且避免了人孔內(nèi)管線交錯。但這樣的結(jié)果是，在人行道上有限范圍內(nèi)人孔設(shè)置過多且投資太大，也不利于城市規(guī)劃及發(fā)展，甚至可能會造成地下管線資源的閑置及建設(shè)資金的沉淀，影響企業(yè)的可持續(xù)發(fā)展。（2）同類纜業(yè)務(wù)合設(shè)人孔，遼寧人孔哪家強。根據(jù)各管線單位經(jīng)營業(yè)務(wù)的不同，可以同類纜業(yè)務(wù)合設(shè)人孔，遼寧人孔哪家強。如長線與中國電信或長線與中國網(wǎng)通合設(shè)人孔，便于通信業(yè)務(wù)的銜接延續(xù)，以光纜傳輸為主的公司可以考慮合設(shè)人孔或單建人孔。公安網(wǎng)絡(luò)一般用于交通秩序的電子監(jiān)控，其傳輸媒介主要采用光纜，一般在十字路口四周或者丁字口兩側(cè)都要考慮設(shè)置人孔，人孔單設(shè)為好，也可以和有光纜傳輸?shù)墓竞显O(shè)人孔。（3）異類纜（即電纜類和光纜類）業(yè)務(wù)合設(shè)人孔，遼寧人孔哪家強。這樣，由于電纜、光纜外徑反差明顯，不易錯位，便于在人孔內(nèi)壁固定盤放、引上接續(xù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遼寧人孔哪家強" src="http://tyunfile.71360.com/UpLoadFile/2019/7/4/17/636978582421523305_hbhhgs_9897495.jpg"></div><p style="text-indent:25px">人孔已有成型產(chǎn)品，直徑通常為600mm。人孔中心距地板一般為750mm。便于工作人員在安裝、清洗、維護時進出油罐或通風(fēng)。非金屬油罐的人孔設(shè)在罐頂上，金屬油罐的人孔設(shè)在罐壁相當(dāng)下圈板上。大都為直徑600mm的圓孔，其中心距底板750mm，為油罐清洗或維修人員進出油罐用，又稱作道門。檢修清理油罐時刻利用人孔進行采光和通風(fēng)。立式油罐的容量在5000m3以下時設(shè)1~2個人孔，5000m3以上的設(shè)2個人孔。人孔的安裝應(yīng)與進出油管線相隔不大于90°。當(dāng)只設(shè)一個人孔時，應(yīng)將其置于罐頂透光孔的對面；當(dāng)設(shè)2個人孔時，其中一個設(shè)在透光孔的對面，另一個應(yīng)至少與***個人孔相隔90°。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遼寧人孔哪家強" src="http://tyunfile.71360.com/UpLoadFile/2019/7/4/17/636978582421835223_hbhhgs_8833877.jpg"></div><p style="text-indent:25px">垂直吊蓋人孔標(biāo)準(zhǔn)應(yīng)有一個設(shè)在進出油管右側(cè)附近，并盡量使人孔廠正對罐室密閉門，以便人員進出、維修油罐和通風(fēng)接管用。非金屬油罐的人孔設(shè)在罐頂上，金屬油罐的人孔設(shè)在罐壁下圈板上。大都為直徑600mm的圓孔，其中心距底板750mm，為油罐清洗或維修人員進出油罐用，又稱作道門。檢修清理油罐時刻利用人孔進行采光和通風(fēng)。立式油罐的容量在5000m3以下時設(shè)1~2個人孔，5000m3以上的設(shè)2個人孔。人孔的安裝應(yīng)與進出油管線相隔不大于90°。當(dāng)只設(shè)一個人孔時，應(yīng)將其置于罐頂透光孔的對面；當(dāng)設(shè)2個人孔時，其中一個設(shè)在透光孔的對面，另一個應(yīng)至少與第1個人孔相隔90°。鐵路或馬路交越處，管道兩端要設(shè)置人孔；在管道分支、轉(zhuǎn)彎和引入處要設(shè)置人孔；在有加感箱的地點要設(shè)置人孔。人孔宜設(shè)在馬路坡度轉(zhuǎn)折處、街道中心花園間的橫道旁、街道轉(zhuǎn)折處、人行道上、房基線凹入的地方和接近引上桿或通信線路引入點。人孔不宜設(shè)在重要建筑物的門口（例如汽車庫、消防隊等）、交通要道、不牢固的建筑物附近、緊靠消火栓或水井處、屯放器材地點，以及有其他地下管線經(jīng)過的地方。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遼寧人孔哪家強" src="http://tyunfile.71360.com/UpLoadFile/2019/7/4/17/636978582421835223_hbhhgs_4597277.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/203457.html</p></div></div></div></div></div><div id="lahz7pm" class="page-right twoColRt"><div 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