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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="h2vng3v" 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>新疆黃銅絲扣閘閥哪家好,閥</p><p><span>***更新：</span>2020-11-21 12:41:15</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="7z83tls" 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="7byv7df" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="bi7b4tq" class="box"><p><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，如果開位。密封脂則直接掉入流道或閥腔，造成浪費(fèi)。第四、閥門注脂時(shí)，常忽略注脂效果問題。注脂操作中壓力、注脂量、開關(guān)位都正常。但為確保閥門注脂效果，有時(shí)需開啟或關(guān)閉閥門，對(duì)潤(rùn)滑效果進(jìn)行檢查，確認(rèn)閥門閥球或閘板表面潤(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。及時(shí)泄掉閥腔壓力，也保障了閥門使用安全。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)也要觀察閥門通徑與密封圈座平齊問題。例如球閥，如果存在開位過盈，可向里調(diào)整開位限位器，確認(rèn)通徑平直后鎖定。調(diào)整限位不可只追求開或關(guān)一方位置，要整體考慮。如果開位平齊，關(guān)不到位，會(huì)造成閥門關(guān)不嚴(yán)，新疆黃銅絲扣閘閥哪家好。同理，新疆黃銅絲扣閘閥哪家好，新疆黃銅絲扣閘閥哪家好，調(diào)整關(guān)到位，也要考慮開位相應(yīng)的調(diào)整。烏魯木齊止回閥廠家。新疆黃銅絲扣閘閥哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆黃銅絲扣閘閥哪家好,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864799892578/8112427.jpg"></div><p> 自力式壓差旁通閥閥控制供水總管路和回水總管路之間的**高壓差?？梢袁F(xiàn)場(chǎng)通過控制導(dǎo)閥調(diào)節(jié)**高壓差值，當(dāng)供回水壓差達(dá)到或超過設(shè)定值時(shí)，閥門主動(dòng)打開，由供水管（分水器）直接泄壓到回水管（或集水器），前后應(yīng)設(shè)置檢修用關(guān)斷閥門。小開度工礦多，應(yīng)考慮汽蝕問題。無需電控、程控，全自力式，故障率低，維護(hù)簡(jiǎn)單。缺點(diǎn)：控制精度較電動(dòng)式低。電動(dòng)壓差旁通閥安裝于分集水器之間，設(shè)定并控制供回水之間的壓差，前后應(yīng)設(shè)檢修用關(guān)斷閥門。由電動(dòng)兩通閥、壓差變送器、壓差控制器三部分組成，或壓差傳感控制器，也可以置于大閉環(huán)**控制下。驅(qū)動(dòng)電源為AC24V，控制電源為0～10V或4～20mA，壓差控制器可采用機(jī)械顯示或數(shù)字顯示。當(dāng)旁通管道口徑≥250時(shí)，可以選AC220V，模擬量控制的電動(dòng)蝶閥，其他不變。≤200孔徑時(shí)，盡量選擇等百分比的座閥閥體。自力式壓差控制閥通過控制供回水管之間的壓差來控制流量。優(yōu)點(diǎn)是調(diào)節(jié)簡(jiǎn)單（通過調(diào)節(jié)彈簧壓縮量來調(diào)節(jié)壓差控制范圍），結(jié)構(gòu)簡(jiǎn)單，方案成熟，故障率低，安裝方便，無需電控。缺點(diǎn)是調(diào)節(jié)壓差的精度較低，**好和末端的電動(dòng)閥門聯(lián)合使用。通常安裝于回水管路上。自力式壓差平衡閥不具備關(guān)斷功能，根據(jù)需要，應(yīng)另設(shè)關(guān)斷閥門。新疆遙控浮球閥廠家?guī)鞝柪招龁⑹街够亻y廠家。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆黃銅絲扣閘閥哪家好,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864807900391/6765207.jpg"></div><p> 諸如大型火力發(fā)電站上的安全閥、石油化工裝置上用的安全閥、核電站壓水堆一回路裝置上的安全閥等。這些裝置上的安全閥，保證了系統(tǒng)的正常運(yùn)行和安全。有關(guān)詳細(xì)情況，請(qǐng)參閱這方面的專著。4.疏水閥的選用疏水閥是從貯有蒸汽的密閉容器內(nèi)自動(dòng)排出凝結(jié)水，同時(shí)保持不泄漏新鮮蒸汽的一種自動(dòng)控制裝置，在必要時(shí)也允許蒸汽按預(yù)定的流量通過。在現(xiàn)代社會(huì)中，蒸汽***地應(yīng)用于工農(nóng)業(yè)生產(chǎn)和生活設(shè)施中，無論在蒸汽的輸送管道系統(tǒng)，還是利用蒸汽來進(jìn)行加熱、干燥、保溫、消毒、蒸煮、濃縮、換熱、采暖、空調(diào)等工藝過程中所產(chǎn)生的凝結(jié)水，都需要通過蒸汽疏水閥排除干凈，而不允許蒸汽泄漏掉。按啟閉件的驅(qū)動(dòng)方式，蒸汽疏水閥可分為三類：由凝結(jié)水液位變化驅(qū)動(dòng)的機(jī)械型蒸汽疏水閥；由凝結(jié)水溫度變化驅(qū)動(dòng)的熱靜力型蒸汽疏水閥；由凝結(jié)水動(dòng)態(tài)特性驅(qū)動(dòng)的熱動(dòng)力型蒸汽疏水閥。疏水閥結(jié)構(gòu)型式見表1-25。蒸汽疏水閥是蒸汽使用系統(tǒng)的重要附件，其性能的優(yōu)劣，對(duì)于系統(tǒng)的正常運(yùn)行。設(shè)備熱效率的提高及能源的合理利用等方面具有重要作用。⑴機(jī)械型蒸汽疏水閥這類疏水閥主要有密閉浮子式、敞口向上浮子式、敞口向下浮子式等。這類型式的蒸汽疏水閥的工作原理運(yùn)用了古老的阿基米德原理，性能可靠。</p><p style="text-indent:25px">閥門注脂時(shí)，常忽略壓力問題。在注脂操作時(shí)，注脂壓力有規(guī)律地呈峰谷變化。壓力過低，密封漏或失效，壓力過高，注脂口堵塞、密封內(nèi)脂類硬化或密封圈與閥球、閥板抱死。通常注脂壓力過低時(shí)，注入的潤(rùn)滑脂多流入閥腔底部，一般發(fā)生在小型閘閥。而注脂壓力過高，一方面檢查注脂嘴，如是脂孔阻塞判明情況進(jìn)行更換；另一方面是脂類硬化，要使用清洗液，反復(fù)軟化失效的密封脂，并注入新的潤(rùn)滑脂置換。此外，密封型號(hào)和密封材質(zhì)，也影響注脂壓力，不同的密封形式有不同的注脂壓力，一般情況硬密封注脂壓力要高于軟密封。第三、閥門注脂時(shí)，注意閥門在開關(guān)位的問題。球閥維護(hù)保養(yǎng)時(shí)一般都處于開位狀態(tài)，特殊情況下選擇關(guān)閉保養(yǎng)。其他閥門也不能一概以開位論處。庫爾勒臥式止回閥廠家。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆黃銅絲扣閘閥哪家好,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864797382813/832833.jpg"></div><p> 閥門按作用和用途（一）關(guān)斷閥這類閥門是起開閉作用的。常設(shè)于冷、熱源進(jìn)、出口，設(shè)備進(jìn)、出口，管路分支線（包括立管）上，也可用作放水閥和放氣閥。常見的關(guān)斷閥有閘閥、截止閥、球閥和蝶閥等。閘閥可分為明桿和暗桿、單閘板與雙閘板、楔形閘板與平行閘板等。[1]（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(dòng)能自行開啟，反向流動(dòng)時(shí)自動(dòng)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(dòng)的地方。止回閥分旋啟式、升降式和對(duì)夾式三種。對(duì)于旋啟式止回閥，流體只能從左向右流動(dòng)時(shí)，反向流動(dòng)時(shí)自動(dòng)關(guān)閉。對(duì)于升降式止回閥，流體從左向右流動(dòng)時(shí)，閥芯抬起，形成通路，反向流動(dòng)時(shí)閥芯被壓緊到閥座上而被關(guān)閉。[1]（三）調(diào)節(jié)閥閥門前后壓差一定，普通閥門的開度在較大范圍內(nèi)變化時(shí)，其流量變化不大，而到某一開度時(shí)，流量急劇變化，即調(diào)節(jié)性能不佳。調(diào)節(jié)閥可以按照信號(hào)的方向和大小，改變閥芯行程來改變閥門的阻力數(shù)，從而達(dá)到調(diào)節(jié)流量目的的閥門。[1]（四）真空類真空類包括真空球閥、真空擋板閥、真空充氣閥、氣動(dòng)真空閥等。（五）特殊用途類特殊用途類包括清管閥、放空閥、排污閥、排氣閥、過濾器等。排氣閥是管道系統(tǒng)中必不可少的輔助元件。烏魯木齊截止閥廠家。烏魯木齊泄壓持壓閥批發(fā)</p><p style="text-indent:25px">庫爾勒球型止回閥廠家。新疆黃銅絲扣閘閥哪家好</p><p> 彈簧直接載荷式安全閥有封閉式和不封閉式兩種。一般易燃、易爆或0介質(zhì)選用封閉式。蒸汽或惰性氣體等可選用不封閉式。彈簧直接載荷式安全閥有的帶扳手，有的不帶扳手。扳手的作用是檢查閥瓣的靈敏度。⑶先導(dǎo)式安全閥。是一種依靠從導(dǎo)閥排出介質(zhì)來驅(qū)動(dòng)或控制的安全閥，該導(dǎo)閥本身應(yīng)是符合標(biāo)準(zhǔn)要求的直接載荷式安全閥。由于先導(dǎo)式安全閥的主閥通常利用工作介質(zhì)壓力加載，其載荷大小不受限制。因而可用于高壓、大口徑的場(chǎng)合。同時(shí)，因其主閥可設(shè)計(jì)成依靠工作介質(zhì)壓力密封的形式，或者可以對(duì)閥瓣施加直接載荷式安全閥大得多的載荷，因而主閥的密封性容易得到保證。此外，這類安全閥的動(dòng)作可以較少受背壓變化的影響，但是先導(dǎo)式安全閥的可靠性同主閥和導(dǎo)閥兩者有關(guān)，而且結(jié)構(gòu)比較復(fù)雜，為了提高可靠性，規(guī)范往往要求采用多重先導(dǎo)控制管路。這樣就更增加了整個(gè)保護(hù)系統(tǒng)的復(fù)雜程度?；谏鲜鲈?，先導(dǎo)式安全閥與彈簧直接載荷式安全閥無論在流程工業(yè)還是在電力工業(yè)中都有***的應(yīng)用，并各自發(fā)展、共同構(gòu)成了安全閥結(jié)構(gòu)發(fā)展的主流。⑷安全閥的選用要求。選用安全閥時(shí)，通常由操作壓力決定安全閥的公稱壓力，由操作溫度決定安全閥的使用溫度范圍。新疆黃銅絲扣閘閥哪家好</p><p style="text-indent:25px">新疆遠(yuǎn)大通用閥門有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家生產(chǎn)型公司。遠(yuǎn)大通用閥門致力于為客戶提供良好的閥門，一切以用戶需求為中心，深受廣大客戶的歡迎。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠(chéng)信為本的理念，打造機(jī)械及行業(yè)設(shè)備良好品牌。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br 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