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src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864806953125/6397088.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3tnov8z" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864806953125/6397088.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="kyqczgi" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>新疆維吾爾自治區(qū)</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>新疆布赫閥門(mén)哪家好,閥</p><p><span>***更新：</span>2020-09-21 18:05:46</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ixu8pwd" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">新疆遠(yuǎn)大通用閥門(mén)有限公司</a></p><p><span>聯(lián)系人：</span>李嘉豪</p><p><span>郵箱: </span>1183099099@qq.com</p><p><span>電話: </span>18999955968</p><p><span>傳真: </span>0991_6877477</p><p><span>網(wǎng)址: </span>http://www.xjyuanda.com</p><p><span>手機(jī): </span>0991-6877477</p><p><span>地址: </span>烏魯木齊市高新技術(shù)產(chǎn)業(yè)開(kāi)發(fā)區(qū)（新市區(qū)）清水街213號(hào)</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="lurdk7n" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="bfh2dkm" class="box"><p><p> 【解】閥體材料：已知蒸汽壓力，溫度為350℃，閥體材料按表2-3a可選用球鑄鐵或質(zhì)量碳素鋼。但考慮到350℃已達(dá)到球墨鑄鐵的**高使用溫度，為了安全使用，應(yīng)選用質(zhì)量碳素鋼（WCB、ZG230-450）閥門(mén)。公稱壓力：根據(jù)質(zhì)量碳素鋼和蒸汽的壓力和溫度，由表1-3查出，閥門(mén)的公稱壓力PN=。密封面材料：根據(jù)閥門(mén)公稱壓力和介質(zhì)溫度，按表2-3b密封面材料應(yīng)選用不銹鋼。驅(qū)動(dòng)方式：根據(jù)給定的公稱通徑DN100mm，因管徑較小，故啟閉時(shí)所需力矩不大，本例未提出操作方式的特殊要求，故選用手輪驅(qū)動(dòng)。連接形式：根據(jù)給定的蒸汽壓力和溫度，管材應(yīng)采用無(wú)縫鋼管，而無(wú)縫鋼管應(yīng)采用焊接。但為了便于閥門(mén)的裝卸和維修，其連接形式不宜采用焊接，應(yīng)采用法蘭連接。閥門(mén)類(lèi)別與型號(hào)：根據(jù)介質(zhì)特性，新疆布赫閥門(mén)哪家好、公稱壓力與公稱通徑，可選用截止閥或閘閥。因在同一壓力等級(jí)下，閘閥的價(jià)格比截止閥高，故宜優(yōu)先選用截止閥。但在截止閥參數(shù)表中，沒(méi)有公稱壓力，故本例仍選用閘閥，新疆布赫閥門(mén)哪家好。按閘閥參數(shù)表中選用閥門(mén)型號(hào)Z40H-25DN100?！纠?】某油品管道，新疆布赫閥門(mén)哪家好，其介質(zhì)工作壓力為，溫度為340℃，管子內(nèi)徑為107mm；試選用適合的閉路閥門(mén)。【解】閥體材料：根據(jù)介質(zhì)特性和參數(shù)，按表2-3a可選用質(zhì)量碳素鋼（WCB、ZG230-450）?？κ步z扣閘閥廠家。。新疆布赫閥門(mén)哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆布赫閥門(mén)哪家好,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864806953125/6397088.jpg"></div><p> 閘閥在養(yǎng)護(hù)時(shí)則必須處于關(guān)閉狀態(tài)，確保潤(rùn)滑脂沿密封圈充滿密封槽溝，如果開(kāi)位。密封脂則直接掉入流道或閥腔，造成浪費(fèi)。第四、閥門(mén)注脂時(shí)，常忽略注脂效果問(wèn)題。注脂操作中壓力、注脂量、開(kāi)關(guān)位都正常。但為確保閥門(mén)注脂效果，有時(shí)需開(kāi)啟或關(guān)閉閥門(mén)，對(duì)潤(rùn)滑效果進(jìn)行檢查，確認(rèn)閥門(mén)閥球或閘板表面潤(rùn)滑均勻。第五、注脂時(shí)，要注意閥體排污和絲堵泄壓?jiǎn)栴}。閥門(mén)打壓試驗(yàn)后，密封腔閥腔內(nèi)氣體和水分因環(huán)境溫度升高而升壓，注脂時(shí)要先進(jìn)行排污泄壓，以利于注脂工作的順利進(jìn)行。注脂后密封腔內(nèi)的空氣和水分被充分置換出來(lái)。及時(shí)泄掉閥腔壓力，也保障了閥門(mén)使用安全。注脂結(jié)束后，一定要擰緊排污和泄壓絲堵，以防意外發(fā)生。第六、注脂時(shí)，要注意出脂均勻的問(wèn)題。正常注脂時(shí)，距離注脂口**近的出脂孔先出脂，然后到低點(diǎn)，**后是高點(diǎn)，逐次出脂。如果不按規(guī)律或不出脂，證明存在堵塞，及時(shí)進(jìn)行清通處理。第七、注脂時(shí)也要觀察閥門(mén)通徑與密封圈座平齊問(wèn)題。例如球閥，如果存在開(kāi)位過(guò)盈，可向里調(diào)整開(kāi)位限位器，確認(rèn)通徑平直后鎖定。調(diào)整限位不可只追求開(kāi)或關(guān)一方位置，要整體考慮。如果開(kāi)位平齊，關(guān)不到位，會(huì)造成閥門(mén)關(guān)不嚴(yán)。同理，調(diào)整關(guān)到位，也要考慮開(kāi)位相應(yīng)的調(diào)整。伊犁質(zhì)量閥門(mén)廠家烏魯木齊黃銅絲扣過(guò)濾器球閥哪家好。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆布赫閥門(mén)哪家好,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864799570313/5526304.jpg"></div><p> 同時(shí)與閥門(mén)的壓力、溫度及介質(zhì)的濃度等諸因素有著一定內(nèi)在聯(lián)系。閥門(mén)的流道面積與流速、流量有著直接關(guān)系，而流速與流量是相互依存的兩個(gè)量。當(dāng)流量一定時(shí)，流速大，流道面積便可小些；流速小，流道面積就可以大些。反之，流道面積大，其流速??；流道面積小，其流速大。介質(zhì)的流速大，閥門(mén)通徑可以小些，但阻力損失較大，閥門(mén)易損壞。流速大，對(duì)易燃易爆介質(zhì)會(huì)產(chǎn)生靜電效應(yīng)，造成危險(xiǎn)；流速太小，效率低，不經(jīng)濟(jì)。對(duì)粘度大和易爆的介質(zhì)，應(yīng)取較小的流速。油及粘度大的液體隨粘度大小選擇流速，一般取～2m/s。一般情況***量是已知的，流速可由經(jīng)驗(yàn)確定。各種介質(zhì)常用流速見(jiàn)表2-2。通過(guò)流速和流量可以計(jì)算閥門(mén)的公稱通徑。閥門(mén)通徑相同，其結(jié)構(gòu)型式不同，流體的阻力也不一樣。在相同條件下，閥門(mén)的阻力系數(shù)越大，流體通過(guò)閥門(mén)的流速、流量下降越多；閥門(mén)阻力系數(shù)越小，流體通過(guò)閥門(mén)的流速、流量下降越少。常見(jiàn)介質(zhì)的流速見(jiàn)表2-2。表2-2各種介質(zhì)常用的流速表液體名稱使用條件流速（m/s）液體名稱使用條件流速（m/s）飽和蒸汽DN＞200DN=200～100DN＜10030～4025～3515～30乙炔氣ρ＜（表壓）ρ＜（表壓）ρ＜。</p><p> 在流體管道系統(tǒng)中閥門(mén)是控制元件，其主要作用是隔離設(shè)備和管道系統(tǒng)、調(diào)節(jié)流量、防止回流、調(diào)節(jié)和排泄壓力。由于管道系統(tǒng)選擇**適合的閥門(mén)顯得非常重要，所以，了解閥門(mén)的特性及選擇閥門(mén)的步驟和依據(jù)也變得至關(guān)重要起來(lái)。閥門(mén)承壓件材質(zhì)鑄銅、鑄鐵、球墨鑄鐵、高硅鑄鐵、鑄鋼、鍛鋼、高（低）合金鋼、不銹耐酸鋼、哈氏合金、因科鎳爾、蒙乃爾合金、雙相不銹鋼、鈦合金等。并且能夠生產(chǎn)各種電動(dòng)、氣動(dòng)、液動(dòng)閥門(mén)驅(qū)動(dòng)裝置。面對(duì)如此眾多的閥門(mén)品種和復(fù)雜的各種工況，要選擇管道系統(tǒng)**適合安裝的閥門(mén)產(chǎn)品，首先應(yīng)了解閥門(mén)的特性；其次應(yīng)掌握選擇閥門(mén)的步驟和依據(jù)；再者應(yīng)遵循選擇閥門(mén)的原則。閥門(mén)的特性一般有兩種，使用特性和結(jié)構(gòu)特性。1、使用特性：它確定了閥門(mén)的主要使用性能和使用范圍，屬于閥門(mén)使用特性的有：閥門(mén)的類(lèi)別(閉路閥門(mén)、調(diào)節(jié)閥門(mén)、安全閥門(mén)等)；產(chǎn)品類(lèi)型(閘閥、截止閥、蝶閥、球閥等)；閥門(mén)主要零件(閥體、閥蓋、閥桿、閥瓣、密封面)的材料；閥門(mén)傳動(dòng)方式等。2、結(jié)構(gòu)特性：它確定了閥門(mén)的安裝、維修、保養(yǎng)等方法的一些結(jié)構(gòu)特性，屬于結(jié)構(gòu)特性的有：閥門(mén)的結(jié)構(gòu)長(zhǎng)度和總體高度、與管道的連接形式(法蘭連接、螺紋連接、夾箍連接、外螺紋連接、焊接端連接等)。阿圖什止回閥廠家。。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆布赫閥門(mén)哪家好,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864797431641/5717140.jpg"></div><p>使用特性：它確定了閥門(mén)的主要使用性能和使用范圍，屬于閥門(mén)使用特性的有：閥門(mén)的類(lèi)別(閉路閥門(mén)、調(diào)節(jié)閥門(mén)、安全閥門(mén)等)；產(chǎn)品類(lèi)型(閘閥、截止閥、蝶閥、球閥等)；閥門(mén)主要零件(閥體、閥蓋、閥桿、閥瓣、密封面)的材料；閥門(mén)傳動(dòng)方式等。2、結(jié)構(gòu)特性：它確定了閥門(mén)的安裝、維修、保養(yǎng)等方法的一些結(jié)構(gòu)特性，屬于結(jié)構(gòu)特性的有：閥門(mén)的結(jié)構(gòu)長(zhǎng)度和總體高度、與管道的連接形式(法蘭連接、螺紋連接、夾箍連接、外螺紋連接、焊接端連接等)；密封面的形式(鑲?cè)?、螺紋圈、堆焊、噴焊、閥體本體)；閥桿結(jié)構(gòu)形式(旋轉(zhuǎn)桿、升降桿)等。選擇閥門(mén)的步驟和依據(jù)大體如下：一、選擇步驟1、明確閥門(mén)在設(shè)備或裝置中的用途，確定閥門(mén)的工作條件：適用介質(zhì)、工作壓力、工作溫度等等。2、確定與閥門(mén)連接管道的公稱通徑和連接方式：法蘭、螺紋、焊接等。3、確定操作閥門(mén)的方式：手動(dòng)、電動(dòng)、電磁、氣動(dòng)或液動(dòng)、電氣聯(lián)動(dòng)或電液聯(lián)動(dòng)等。4、根據(jù)管線輸送的介質(zhì)、工作壓力、工作溫度確定所選閥門(mén)的殼體和內(nèi)件的材料：灰鑄鐵、可鍛鑄鐵、球墨鑄鐵、碳素鋼、合金鋼、不銹耐酸鋼、銅合金等。5、選擇閥門(mén)的種類(lèi)：閉路閥門(mén)、調(diào)節(jié)閥門(mén)、安全閥門(mén)等。博樂(lè)球型止回閥廠家。烏魯木齊水管閥門(mén)哪家好</p><p style="text-indent:25px">阿克蘇閘閥廠家。。。新疆布赫閥門(mén)哪家好</p><p> 并能在進(jìn)口壓力及流量變動(dòng)時(shí)，利用本身介質(zhì)能量保持出口壓力基本不變的閥門(mén)。減壓閥分直接作用式和先導(dǎo)式，見(jiàn)圖1-37～圖1-40.⑴直接作用式直接作用式減壓閥是用壓縮彈簧、重物或重力杠桿以及壓縮空氣加載。通過(guò)膜片、活塞或波紋管直接進(jìn)行壓力控制的閥門(mén)。這種閥門(mén)結(jié)構(gòu)簡(jiǎn)單、耐用。在比較惡劣的工況下，只要維護(hù)得當(dāng)，也能有很長(zhǎng)的壽命。雖然直接作用式的壓力調(diào)節(jié)不像先導(dǎo)式那么精確，但是造價(jià)低?？梢?**地用于不必要做精確控制的場(chǎng)合。常用的直接作用式減壓閥按結(jié)構(gòu)形式分有：彈簧薄膜式減壓閥、活塞式減壓閥、波紋管式減壓閥和杠桿式減壓閥。彈簧薄膜式減壓閥是采用膜片作敏感元件來(lái)帶動(dòng)閥瓣運(yùn)動(dòng)的減壓閥。它的靈敏度高，宜用于溫度和壓力不高的水和空氣介質(zhì)管道上。活塞式減壓閥是采用活塞作敏感元件來(lái)帶動(dòng)閥瓣運(yùn)動(dòng)的減壓閥。由于活塞在汽缸中承受的摩擦力較大，靈敏度不及薄膜式減壓閥。因此，適用于承受溫度、壓力較高的以蒸汽和空氣等為工作介質(zhì)的管道和設(shè)備上。波紋管式減壓閥是采用波紋管作敏感元件來(lái)帶動(dòng)閥瓣運(yùn)動(dòng)的減壓閥。它宜由于介質(zhì)參數(shù)不高的蒸汽和空氣等潔凈介質(zhì)的管道上。不能用于液體的減壓。更不能用于含有固體顆粒介質(zhì)的管道上。因此。新疆布赫閥門(mén)哪家好</p><p style="text-indent:25px">新疆遠(yuǎn)大通用閥門(mén)有限公司位于烏魯木齊市高新技術(shù)產(chǎn)業(yè)開(kāi)發(fā)區(qū)（新市區(qū)）清水街213號(hào)。公司業(yè)務(wù)涵蓋閥門(mén)，，，等，價(jià)格合理，品質(zhì)有保證。公司將不斷增強(qiáng)企業(yè)重點(diǎn)競(jìng)爭(zhēng)力，努力學(xué)習(xí)行業(yè)知識(shí)，遵守行業(yè)規(guī)范，植根于機(jī)械及行業(yè)設(shè)備行業(yè)的發(fā)展。遠(yuǎn)大通用閥門(mén)立足于全國(guó)市場(chǎng)，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1369946.html</p></div></div></div></div></div><div id="333lxuw" class="page-right twoColRt"><div id="t2vz2bi" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="xhegi7t" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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