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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>安徽省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>肥西鋁合金閥門定制,閥門</p><p><span>***更新：</span>2021-01-10 03:03:19</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8vyz2ok" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">安徽金建建材有限公司</a></p><p><span>聯(lián)系人：</span>陳金城</p><p><span>郵箱: </span>83125714@qq.com</p><p><span>電話: </span>13956044283</p><p><span>傳真: </span>0552_3153188</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0552-3153188</p><p><span>地址: </span>合肥市包河區(qū)南淝河路豐匯鋼材市場E2棟107-111號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="xy8b3v3" class="page-proshow02"><p class="title">詳細說明</p><div id="rulhyp7" class="box"><p><p style="text-indent:25px">（二）止回閥這類閥門用于防止介質(zhì)倒流，利用流體自身的動能自行開啟，反向流動時自動關(guān)閉。常設(shè)于水泵的出口、疏水器出口以及其他不允許流體反向流動的地方。止回閥分旋啟式、升降式和對夾式三種。對于旋啟式止回閥，流體只能從左向右流動時，反向流動時自動關(guān)閉。對于升降式止回閥，流體從左向右流動時，閥芯抬起，形成通路，反向流動時閥芯被壓緊到閥座上而被關(guān)閉。對于對夾式止回閥，流體從左向右流動時，閥芯被開啟，形成通路，反向流動時閥芯被壓緊到閥座上而被關(guān)閉，對夾式止回閥可多位安裝、體積小，肥西鋁合金閥門定制、重量輕，肥西鋁合金閥門定制、結(jié)構(gòu)緊湊，肥西鋁合金閥門定制。閘閥受到高溫高壓流體的作用，必然會產(chǎn)生變形及應力。肥西鋁合金閥門定制</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="肥西鋁合金閥門定制,閥門" src="http://tyunfile.71360.com/UpLoadFile/JD011/2019/12/637132423811058737/6371324238110587379913936.jpg"></div><p> 對于排入密閉系統(tǒng)或用**管排入大氣的安全閥，應在其入口和出口處各裝設(shè)一個經(jīng)鉛封、保持經(jīng)常開啟的切斷閥。切斷閥應選用明桿式閘閥或密封性較好的旋塞。（3）液體安全閥一般都排入密封系統(tǒng)，氣體安全閥則排入大氣。排入大氣的氣體安全閥放空管出口，應高出操作面，并引至室外。排入大氣的可燃氣體和0氣體的安全閥放空管出口，應高出周圍比較高建筑或設(shè)備2m。如水平距離l5m以內(nèi)有明火時，可燃氣體不得排入大氣。（4）安全閥入口管道比較大壓力損失，不超過安全閥定壓的3%.為此，除安全閥的位置應盡量靠近被保護的設(shè)備和管道處，還可采用增大入口管的管徑（可比閥入口口徑大1～3擋）、采用長半徑彎頭或采用先導式安全閥來解決。（5）安全閥出口管道的壓力損失也不宜過大，以免安全閥的背壓過大。普通型的背壓不超過安全閥定壓值的10%;波紋管型（平衡型）的背壓一般不宜超過安全閥定壓的30%;先導式安全閥的背壓不超過安全閥定壓的60%?？蓪⒊隹诠艿亩瞬壳谐善娇?，以便排出物直接向上高速排出。如出口管過長，應考慮良好的固定，以防止振動。（6）在裝有安全閥的管道上設(shè)計支架時，應考慮氣體或蒸汽高速排人大氣時，在出口管中心線方向上產(chǎn)生與流向相反的作用力。安徽上海蒙高閥門網(wǎng)址主要用在自動噴水滅火系統(tǒng)中主管道上進行截流及截流狀態(tài)控制。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="肥西鋁合金閥門定制,閥門" src="http://tyunfile.71360.com/UpLoadFile/JD011/2019/11/637091945209106727/6370919452091067274393592.jpg"></div><p> 水錘，即壓力波產(chǎn)生的原因和影響其大小的因素。水流速度的突然變化，即是產(chǎn)生水錘的根本原因。只要水的流速發(fā)生變化，系統(tǒng)壓力必然發(fā)生變化。正是由于止回閥的阻擋作用使得我們會出現(xiàn)典型的“停泵水錘”，止回閥的關(guān)閉使得水流的速度發(fā)生***變化，因此會產(chǎn)生危險的壓力波動。盡管長時期以來，尤其是國內(nèi)的實踐應用，通過緩閉或者兩階段關(guān)閉等等方式消除水錘得到過認可，但是其適用性還是值得探討。9(B)首先，從非專業(yè)理論的層面上看，通過調(diào)整造成水錘的因素來解決水錘，同時又不作根本的變動，本身就是一種冒險的形為。每個事物都有好與壞的兩方面，人類并不能將壞的方面全部轉(zhuǎn)化成有利的方面，否則就破壞了宏觀的基礎(chǔ)理論，成為正確哲學的悖論。接下來，并不是緩閉的或者兩階段關(guān)閉的止回閥是“應用四海皆準”的普適定律；因為，水錘是針對全系統(tǒng)而言，并不特指水泵站。因此，止回閥常常不是解決水錘的***答案，工程人員必須進行全系統(tǒng)的通盤考慮，綜合解決。有些情況下水錘的發(fā)生遠在止回閥的數(shù)公里以外，“止回閥調(diào)整法”就顯得無所適從；第三，考慮其它的方法，可以使得我們將問題簡單化，讓我們在黑暗中眼前一亮。所得到的解就更加有把握，系統(tǒng)會更安全。</p><p style="text-indent:25px">干粉滅火器撲救可燃、易燃液體火災時，應對準火焰要部掃射，如果被撲救的液體火災呈流淌燃燒時，應對準火焰根部由近而遠，并左右掃射，直至把火焰全部撲滅。如果可燃液體在容器內(nèi)燃燒，使用者應對準火焰根部左右晃動掃射，使噴射出的干粉流覆蓋整個容器開口表面;當火焰被趕出容器時，使用者仍應繼續(xù)噴射，直至將火焰全部撲滅。在撲救容器內(nèi)可燃液體火災時，應注意不能將噴嘴直接對準液面噴射，防止噴流的沖擊力使可燃液體濺出而擴大火勢，造成滅火困難。如果當可燃液體在金屬容器中燃燒時間過長，容器的壁溫已高于撲救可燃液體的自燃點，此時極易造成滅火后再復燃的現(xiàn)象，若與泡沫類滅火器聯(lián)用，則滅火效果更佳。溝槽閘閥主要由閥體、閘板、閥桿、閥蓋、填料等部件組成，它們均會承受流體的壓力和溫度載荷。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="肥西鋁合金閥門定制,閥門" src="http://tyunfile.71360.com/UpLoadFile/2019/9/29/9/637053449968000462_JD011_7684236.jpg"></div><p> 實際計算值為：）。A'6-E{***斷電（兩臺水泵同時關(guān)停）工況的瞬變流分析!-HJ%(5:F通過瞬變流分析，前提為水泵站***斷電，兩臺工作中的水泵同時停止。計算中將管線內(nèi)各點可能出現(xiàn)的比較高壓力值(不同時出現(xiàn))包絡(luò)起來，并將管線內(nèi)各點可能出現(xiàn)的比較低壓力值包絡(luò)起來，組成比較高壓力包絡(luò)線與比較低壓力包絡(luò)線圖，如下：=|LB,RENBvxLbl}{F=`IE3)w上圖中紅色水壓線為正常供水壓力坡降線；S'(IGm4蘭色線為管線縱斷面；a9紅色水壓線的上方黑色細線便是比較高壓力包絡(luò)線，其下方出現(xiàn)的黑色細線則為比較低壓力包絡(luò)線。De([fC該段管線布設(shè)合理，并未明顯起伏，管線亦不十分長，但仍能從圖中看到有較高的壓力波動：高壓比較高，而且全管線均會出現(xiàn)負狀況。yZ-Ql11仔細地考察一下管線上各點的壓力波動情況：9K>~9Za0nPg`@e.c?*x2Vk圖中為水泵站點（粉紅色線）與702米點（紅色線）沒有保護的瞬變流分析結(jié)果的壓力波動狀況。gI/SA其中橫坐標為時間，單位：秒；d@?zCFD縱坐標為壓力，單位：米水柱。_'K6S分析顯示，在停泵后約10秒鐘，壓力出現(xiàn)下升并至比較低壓力值，約-9米水柱，在本案中將水的飽和氣壓值設(shè)定為-9米，即水在-9米時氣化，。之后。溝槽閥門,溝槽蝶閥,彈性座封閘閥先導閥靠當作控制對象的水位和壓力的變化而動作。肥西鋁合金閥門定制</p><p style="text-indent:25px">溝槽軟密封閘閥重量輕，本體采用_球墨鑄鐵制成，重量較傳統(tǒng)閘閥重量減輕約20%-30%，安裝維修方便。肥西鋁合金閥門定制</p><p> 鍍鋅板和鍍鋅鋼管防腐漆底材與鋼鐵材質(zhì)有很大的差別，鍍鋅板過于光滑，一般油漆很難附著在表面，即使干燥后也很容易脫落，無法達到防腐的作用。所以對于油漆的選擇一般是底漆配套面漆，底漆選用具有強附著力的雙組分環(huán)氧鋅黃底漆或者環(huán)氧富鋅底漆，面漆使用硬度較高的丙烯酸聚氨酯面漆或者氟碳面漆。鍍鋅板防腐漆施工方法如下： </p> <p> 底材處理：鍍鋅板表面非常光滑，也要采用打磨處理，使表面具有一定的粗糙度更有利于油漆粘附。 </p> <p> 底漆涂裝：環(huán)氧鋅黃底漆的甲乙組分按照5:1的比例混合，添加適量環(huán)氧稀釋劑，充分攪拌均勻，噴涂2遍，每遍間隔6小時以上，實干24小時。 </p> <p> 面漆涂裝：丙烯酸聚氨酯面漆甲乙組分按照5:1的比例混合，添加丙烯酸稀釋劑，充分攪拌均勻，噴涂2遍，每遍間隔6小時以上，實干24小時。 </p> <p> 施工驗收：施工完畢，漆膜光滑平整，顏色均勻。此時油漆中仍有殘余的溶劑尚未揮發(fā)，需要7天左右時間才能徹底干燥，達到理想的效果。肥西鋁合金閥門定制</p><p style="text-indent:25px">安徽金建建材有限公司創(chuàng)建于2010年7月份，總部設(shè)立在安徽鋼材大市場安徽合肥國強鋼材交易市場內(nèi)。廠房占地3500平方米，倉儲物流統(tǒng)一配送，公司下設(shè)五金城門店、阜陽分公司、蚌埠辦事處、安慶辦事處和淮北分店，員工總數(shù)70余名，年銷售額達億元，并逐年增加中。主要經(jīng)營消防器材、閥門、鍍鋅鋼管、鍍鋅瑪鋼配件、溝槽管件、不銹鋼管等系列管道工程材料產(chǎn)品，并享有良好的售后服務保障。金建建材努力將公司發(fā)展成為具備頑強戰(zhàn)斗力的學習型企業(yè)，實現(xiàn)五年內(nèi)躋身于全國給排水行業(yè)**名的中期發(fā)展目標。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2778101.html</p></div></div></div></div></div><div id="8ypbipq" class="page-right twoColRt"><div id="tsjags2" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="72klxof" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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