深圳止回閥廠家創(chuàng)造輝煌藍(lán)帕控制閥門供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="止回閥，又稱單向閥、逆止閥，在石油化工行業(yè)中應(yīng)用非常普遍，在一些高風(fēng)險(xiǎn)裝置的關(guān)鍵部位如加氫裝置高壓離心泵出口、氫氣壓縮機(jī)出口、高壓系統(tǒng)和低壓系統(tǒng)界區(qū)都安裝止回閥。一些企業(yè)由于在設(shè)計(jì)、選材、使用、檢驗(yàn)、維修等環(huán)節(jié)管理不到位，導(dǎo)致止回閥失效，物"><meta name="keywords" content="深圳止回閥廠家,止回閥"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta 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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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>深圳止回閥廠家,止回閥</p><p><span>***更新：</span>2021-01-25 06:19:00</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="iacm3bv" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">藍(lán)帕控制閥門（江蘇）有限公司</a></p><p><span>聯(lián)系人：</span>彭俊蘭</p><p><span>郵箱: </span>shlapar@163.com</p><p><span>電話: </span>13918404049</p><p><span>傳真: </span>0523_87889288</p><p><span>網(wǎng)址: </span>http://laparvalve.com</p><p><span>手機(jī): </span>0523-87885388</p><p><span>地址: </span>泰興市黃橋工業(yè)園區(qū)軍民路北側(cè)</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="vkmjvmj" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="on7bs8l" class="box"><p><p style="text-indent:25px">止回閥，又稱單向閥、逆止閥，在石油化工行業(yè)中應(yīng)用非常普遍，在一些高風(fēng)險(xiǎn)裝置的關(guān)鍵部位如加氫裝置高壓離心泵出口、氫氣壓縮機(jī)出口、高壓系統(tǒng)和低壓系統(tǒng)界區(qū)都安裝止回閥。一些企業(yè)由于在設(shè)計(jì)、選材、使用、檢驗(yàn)、維修等環(huán)節(jié)管理不到位，導(dǎo)致止回閥失效，物料倒流，高壓系統(tǒng)物料向低壓系統(tǒng)反串，引起低壓設(shè)備損壞，或發(fā)生物料泄漏，引發(fā)火災(zāi)、事故。止回閥是存在運(yùn)動(dòng)部件的設(shè)備，存在損壞可能，必須對(duì)止回閥定期進(jìn)行檢驗(yàn)和修理，深圳止回閥廠家，才能確保其可靠性。一些關(guān)鍵部位的止回閥的重要性不低于安全閥，深圳止回閥廠家，目前國(guó)家標(biāo)準(zhǔn)、企業(yè)的管理制度中對(duì)安全閥的檢查和校驗(yàn)都有明確要求，但是沒(méi)有對(duì)止回閥進(jìn)行定期檢驗(yàn)、維修的制度，深圳止回閥廠家、規(guī)定、標(biāo)準(zhǔn)。止回閥不在國(guó)家強(qiáng)制檢驗(yàn)范圍之內(nèi)，只是列入一般閥門管理。升降式止回閥與截止閥結(jié)構(gòu)類似，*缺少帶動(dòng)閥瓣的閥桿。深圳止回閥廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳止回閥廠家,止回閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227373835636/8405207.png"></div><p style="text-indent:25px">防止水力沖擊對(duì)止回閥密封面損壞的保護(hù)措施：止回閥的設(shè)置，起到了防止物料倒流，避免泵葉輪遭受液擊的作用。但就止回閥本身而言，設(shè)置不當(dāng)，會(huì)造成水擊所產(chǎn)生的閥瓣對(duì)閥座的突然撞擊，損及止回閥密封面。因此，應(yīng)采取以幾點(diǎn)保護(hù)措施。　　1、對(duì)于泵出口設(shè)置>80mm的旋啟式止回閥，應(yīng)采用水平安裝方式，以減弱閥瓣回座及產(chǎn)生的撞擊。　　2、對(duì)于泵出口止回閥口徑大于等于150mm的管路，應(yīng)在止回閥前后設(shè)置旁路，防止閥前壓力上升過(guò)高，對(duì)止回閥密封面造成的損害。　　3、對(duì)泵排出管路起點(diǎn)和終點(diǎn)壓力較高管路，不允許設(shè)置旁路的，可采取以下措施：設(shè)置安全閥以代替旁路閥。其作用與旁路閥相似。它設(shè)置在止回閥出口附近，當(dāng)水擊使壓力升高時(shí)，可將一部分水放出以防止壓力繼續(xù)增高造成的損害。深圳止回閥廠家止回閥又稱止逆閥、單流閥、單向閥或逆止閥，其作用是保證管路中的介質(zhì)定向流動(dòng)而不致倒流。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳止回閥廠家,止回閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227382751613/3908687.png"></div><p style="text-indent:25px"> 由于流體的流動(dòng)打開了止回閥，因此了解流體及其特性至關(guān)重要。流體是液體，氣體還是多相-液體流中的固體或氣體流中的液體？正常的體積流量是多少？流量是水平的還是垂直的？上或？流動(dòng)的溫度和壓力將是多少？流體的物理特性是什么，例如密度和粘度？流體的化學(xué)性質(zhì)是什么，例如其pH值和蒸氣壓？有腐蝕性嗎？有磨蝕性嗎？這些流動(dòng)特性決定了哪種樣式的止回閥可以完成工作，以及對(duì)止回閥和閥內(nèi)件的任何特殊材料要求。為了可靠，止回閥的尺寸必須適當(dāng)?！庇袝r(shí)人們認(rèn)為管線的尺寸決定了閥門的尺寸。并非如此，尤其是對(duì)于止回閥。為了獲得穩(wěn)定的性能和長(zhǎng)壽命，止回閥的尺寸必須適合其要處理的流量。他們需要經(jīng)歷足夠的流量以在正常流量條件下保持完全打開。</p><p style="text-indent:25px"> 止回閥又叫逆止閥，是一種自動(dòng)閥門。它依靠管道內(nèi)流動(dòng)介質(zhì)的壓力推動(dòng)閥瓣，來(lái)實(shí)現(xiàn)閥門的關(guān)閉和開啟，當(dāng)介質(zhì)停止流動(dòng)，止回閥閥瓣關(guān)閉，它能有效防止管道內(nèi)介質(zhì)發(fā)生倒流，這對(duì)于保障管道的安全起到了很大的作用。止回閥按結(jié)構(gòu)劃分，可分為升降式止回閥、旋啟式止回閥和蝶式止回閥三種。升降式止回閥可分為立式和直通式兩種。旋啟式止回閥分為單瓣式、雙瓣式和多瓣式三種。蝶式止回閥分為蝶式雙瓣、蝶式單瓣。以上幾種止回閥在連接形式上可分為螺紋連接、法蘭連接、焊接和對(duì)夾式連接四種。一般在公稱通徑50mm的水平管道上都應(yīng)選用臥式升降止回閥。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳止回閥廠家,止回閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227418142200/2137241.png"></div><p style="text-indent:25px">止回閥是指啟閉件為圓形閥瓣并靠自身重量及介質(zhì)壓力產(chǎn)生動(dòng)作來(lái)阻斷介質(zhì)倒流的一種閥門。屬自動(dòng)閥類，又稱逆止閥、單向閥、回流閥或隔離閥。閥瓣運(yùn)動(dòng)方式分為升降式和旋啟式。升降式止回閥與截止閥結(jié)構(gòu)類似，*缺少帶動(dòng)閥瓣的閥桿。介質(zhì)從進(jìn)口端(下側(cè)）流入，從出口端（上側(cè)）流出。當(dāng)進(jìn)口壓力大于閥瓣重量及其流動(dòng)阻力之和時(shí)，閥門被開啟。反之，介質(zhì)倒流時(shí)閥門則關(guān)閉。旋啟式止回閥有一個(gè)斜置并能繞軸旋轉(zhuǎn)的閥瓣，工作原理與升降式止回閥相似。止回閥常用作抽水裝置的底閥，可以阻止水的回流。止回閥與截止閥組合使用，可起到安全隔離的作用。缺點(diǎn)是阻力大，關(guān)閉時(shí)密封性差。升降式較旋啟式密封性好，流體阻力大，臥式宜裝在水平管道上，立式裝在垂直管道上。深圳止回閥廠家</p><p style="text-indent:25px">對(duì)于要求關(guān)閉時(shí)水擊沖擊比較小或無(wú)水擊的管路，宜選用緩閉式旋啟止回閥和緩閉式蝶形止回閥。深圳止回閥廠家</p><p style="text-indent:25px">止回閥是只允許流體按照一個(gè)方向流動(dòng)的閥門，它又被稱作卡式閥、逆止閥、單向閥等。止回閥根據(jù)其結(jié)構(gòu)不同可以分為各種不同的類型，如旋啟式、斜盤式、活塞式、蝶式和截止止回閥。旋啟式止回閥設(shè)計(jì)較簡(jiǎn)單，它的頂部是閥蓋部分。閥蓋通過(guò)邊緣的一系列螺栓固定到閥體上，使用墊片進(jìn)行密封，閥蓋**有一個(gè)螺栓用于安裝壓力表或放空閥門。墊片用于密封閥體和閥蓋之間的空隙，它使用一種相對(duì)柔軟的材料制成。閥座是閥體與閥瓣接觸的位置，它將閥門的入口和出口隔開。閥瓣的主體是一塊圓形的金屬板，通過(guò)鉸鏈機(jī)構(gòu)與閥體連接，用于實(shí)現(xiàn)流體單向通過(guò)。閥門末端有兩個(gè)法蘭，可以使用螺栓連接或直接焊接到管道上。法蘭的兩端同樣使用墊片進(jìn)行密封。深圳止回閥廠家</p><p style="text-indent:25px">藍(lán)帕控制閥門（江蘇）有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家生產(chǎn)型公司。公司自成立以來(lái)，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下閥門，管道及配件，氣動(dòng)元件，工業(yè)自動(dòng)化設(shè)備深受客戶的喜愛(ài)。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。藍(lán)帕閥門立足于全國(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/3001602.html</p></div></div></div></div></div><div id="tnprtqx" class="page-right twoColRt"><div 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