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class="page-proshow clearfix"><p class="current"> 當前位置:<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/first-_huagong/">化工</a>?<a href="http://www.cdcfah.com/cp/second-huagong_famenmp/">閥門</a>?<a href="http://www.cdcfah.com/cp/third-famenmp_llkzftm/">流量控制閥</a>?南京閥門電裝廠家電話誠信服務(wù) 江蘇蘭閥通用設(shè)備供應(yīng)</p><div id="wcaqgwk" class="leftbox clearfix"><h1>南京閥門電裝廠家電話誠信服務(wù) 江蘇蘭閥通用設(shè)備供應(yīng)</h1><div id="siekio2" class="proBig"><div id="cym4kio" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637408829312940092/6373778.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ywmusyw" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637408829312940092/6373778.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="oucagai" 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>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>南京閥門電裝廠家電話,閥門</p><p><span>***更新：</span>2021-01-11 10:21:04</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="sqgomca" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇蘭閥通用設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>金</p><p><span>郵箱: </span>81768246@qq.com</p><p><span>電話: </span>13915001988</p><p><span>傳真: </span>0519_</p><p><span>網(wǎng)址: </span>http://www.lanfa.cn</p><p><span>手機: </span>0519-88610258</p><p><span>地址: </span>橫山橋鎮(zhèn)省莊村</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="yee42e2" class="page-proshow02"><p class="title">詳細說明</p><div id="kyqou2a" class="box"><p><p style="text-indent:25px">閥門的歷史：閥門是流體管路的控制裝置，其基本功能是接通或切斷管路介質(zhì)的流通，改變介質(zhì)的流通，改變介質(zhì)的流動方向，調(diào)節(jié)介質(zhì)的壓力和流量，保護管路的設(shè)備的正常運行。隨著現(xiàn)代工業(yè)的不斷發(fā)展，閥門需求量不斷增長，一個現(xiàn)代化的石油化工裝置就需要上萬只各式各樣的閥門，閥門使用量大。開閉頻繁，但往往由于制造、使用選型、維修不當，發(fā)生跑、冒、滴、漏現(xiàn)象，由此引起火焰、、中毒、燙傷事故，或者造成產(chǎn)品質(zhì)量低劣，南京閥門電裝廠家電話，能耗提高，設(shè)備腐蝕，物耗提高，環(huán)境污染，甚至造成停產(chǎn)等事故，已屢見不鮮，因此人們希望獲得高質(zhì)量的閥門，同時也要求提高閥門的使用，維修水平，南京閥門電裝廠家電話，這時對從事閥門操作人員，南京閥門電裝廠家電話，維修人員以及工程技術(shù)人員，提出新的要求，除了要精心設(shè)計、合理選用、正確操作閥門之外，還要及時維護、修理閥門，使閥門的“跑、冒、滴、漏”及各類事故降到較低限度。所有零部件進行脫脂處理。南京閥門電裝廠家電話</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京閥門電裝廠家電話,閥門" src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637408829312940092/6373778.png"></div><p style="text-indent:25px">閥門型號編排：閥門型號通常應(yīng)表示出閥門類型、驅(qū)動方式、連接形式、結(jié)構(gòu)特點、密封面材料、閥體材料和公稱壓力等要素。閥門型號的標準化對閥門的設(shè)計、選用、銷售提供了方便。當今閥門的類型和材料越來越多，閥門的型號編制也愈來愈復(fù)雜。我國雖有閥門型號編制的統(tǒng)一標準，但愈來愈不能適應(yīng)閥門工業(yè)發(fā)展的需要。目前，閥門制造廠一般采用統(tǒng)一編號方法；凡不能采用統(tǒng)一編號的方法，各制造廠均按自己的需要制訂編號方法?！堕y門型號編制方法》適用于工業(yè)管道用閘閥、節(jié)流閥、球閥、蝶閥、隔膜閥、柱塞閥、旋塞閥、止回閥、安全閥、減壓閥、疏水閥。它包括閥門的型號編制和閥門的命名。南京閥門電裝廠家電話止回閥又稱單向閥或逆止閥，其作用是防止管路中的介質(zhì)倒流。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京閥門電裝廠家電話,閥門" src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637408829369405185/2317107.png"></div><p style="text-indent:25px">蒸汽疏水閥：蒸汽疏水閥安裝在蒸汽加熱設(shè)備與凝結(jié)水回水集管之間。根據(jù)工作原理的不同，蒸汽疏水閥可化為以下三種類型：機械型利用凝結(jié)水與蒸汽的密度差，通過凝結(jié)水液位變化，使浮子升降帶動閥瓣開啟或關(guān)閉，達到阻汽排水目的。機械型疏水閥的過冷度小，不受工作壓力和溫度變化的影響，有水即排，加熱設(shè)備里不存水，能使加熱設(shè)備達到較佳換熱效率。較大背壓率為80%，工作質(zhì)量高，是生產(chǎn)工藝加熱設(shè)備較理想的疏水閥。熱靜力利用蒸汽和凝結(jié)水的溫差引起感溫元件的變型或膨脹帶動閥心啟閉。熱靜力型疏水閥的過冷度比較大，一般過冷度為15度到40度，它能利用凝結(jié)水中的一部分顯熱，閥前始終存有高溫凝結(jié)水，無蒸汽泄漏，節(jié)能效果明顯是在蒸汽管道，伴熱管線、小型加熱設(shè)備，采暖設(shè)備，溫度要求不高的小型加熱設(shè)備上，較理想的疏水閥。熱動力型這類疏水閥根據(jù)相變原理，靠蒸汽和凝結(jié)水通過時的流速和體積變化的不同熱力學原理，使閥片上下產(chǎn)生不同壓差，驅(qū)動閥片開關(guān)閥門。因熱動力式疏水閥的工作動力來源于蒸汽，所以蒸汽浪費比較大。結(jié)構(gòu)簡單、耐水擊、較大背為50%，有噪音，閥片工作頻繁，使用壽命短。</p><p style="text-indent:25px">蝶閥工作原理：蝶板由閥桿帶動，若轉(zhuǎn)過90°，便能完成一次啟閉。改變蝶板的偏轉(zhuǎn)角度，即可控制介質(zhì)的流量。碟閥作用蝶閥適用于發(fā)生爐、煤氣、天然氣、液化石油氣、城市煤氣、冷熱空氣、化工冶煉和發(fā)電環(huán)保、建筑給排水等工程系統(tǒng)中輸送各種腐蝕性、非腐蝕性流體介質(zhì)的管道上，用于調(diào)節(jié)和截斷介質(zhì)的流動。試壓方法氣動蝶閥的強度試驗與截止閥一樣。蝶閥的密封性能試驗應(yīng)從介質(zhì)流人端引入試驗介質(zhì)，蝶板應(yīng)開啟，另一端封閉，注入壓力至規(guī)定值。檢查填料和其他密封處無滲漏后，關(guān)閉蝶板，打開另一端，檢查蝶板密封處無滲漏為合格。作為調(diào)節(jié)流量用的蝶閥可不做密封性能試驗。氣密試驗合格后進行包封，用干凈聚乙烯帽密封，聚乙烯帽使用前應(yīng)用有機溶劑浸泡，擦拭干凈。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京閥門電裝廠家電話,閥門" src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637408829300440138/3110019.png"></div><p style="text-indent:25px">電力驅(qū)動的閥門：電力驅(qū)動閥門是常用的驅(qū)動方式的閥門，通常稱這種驅(qū)動裝置形式的驅(qū)動裝置為閥門電動裝置，閥門電動裝置的特點如下：1）啟閉迅速，可以較大縮短啟閉閥門所需的時間；2）可以較大減輕操作人員的勞動強度，特別適用于高壓、大口徑閥門；3）適用于安裝在不能手動操作或難于接近的位置，易于實現(xiàn)遠距離操縱，而且安裝高度以不受限制；4）有利于整個系統(tǒng)的自動化；5）電源比氣源和液源容易獲得，其電線的敷設(shè)和維護也比壓縮空氣和液壓管線簡單得多。閥門電動裝置的缺點是構(gòu)造復(fù)雜，在潮濕的地方使用更為困難，用于易爆介質(zhì)時，需要采用隔爆措施。如果閥門使用環(huán)境較為惡劣，易受雨雪、灰塵、風沙等污物沾染，則應(yīng)該為閥桿安裝保護罩。南京閥門電裝廠家電話</p><p style="text-indent:25px">填料壓蓋不允許歪斜或無預(yù)緊間隙。南京閥門電裝廠家電話</p><p style="text-indent:25px">產(chǎn)業(yè)面臨整合：我國閥門生產(chǎn)企業(yè)眾多，而多數(shù)又是低價格的粗糙產(chǎn)品參與市場競爭。隨著各種因素的影響，用戶不會單單通過價格來確定供應(yīng)商，更多是通過相對的高價去采購性價比更好的產(chǎn)品。過去單純只靠價格競爭搶占市場的機會將會越來越少。這種競爭方式的轉(zhuǎn)變必然導致一批小廠面臨倒閉、被收購或者被整合。在這個過程中，歷經(jīng)企業(yè)創(chuàng)新陣痛、強調(diào)技術(shù)工藝發(fā)展的企業(yè)將會脫穎而出，依靠自身技術(shù)積累以及規(guī)模優(yōu)勢不斷發(fā)展壯大成為行業(yè)發(fā)展的受益者。閥門是隨著流體管路的產(chǎn)生而產(chǎn)生的。人類使用閥門已經(jīng)有近4000年的歷史了。南京閥門電裝廠家電話</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2801009.html</p></div></div></div></div></div><div id="kiyw2io" 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