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09:13:57</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="qoocsgo" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海大田閥門管道工程有限公司</a></p><p><span>聯(lián)系人：</span>余璐辰</p><p><span>郵箱: </span>business@dtjt.com</p><p><span>電話: </span>18621060309</p><p><span>傳真: </span>21_</p><p><span>網(wǎng)址: </span>https://www.dtjt.com</p><p><span>手機: </span>21-68106370</p><p><span>地址: </span>祝橋鎮(zhèn)工業(yè)城</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="2qo44qe" class="page-proshow02"><p class="title">詳細說明</p><div id="ki20mcs" class="box"><p><p style="text-indent:25px">減溫減壓裝置均由活門頂桿，寧波減溫減壓裝置公司有哪些、調(diào)壓彈簧、彈性薄膜裝置、減壓門等零部件組成。減壓系統(tǒng)主要用于將高壓氣體自動降為中壓氣體，降至壓力為2MPa，然后送入第二級減壓系統(tǒng)。在二級減壓系統(tǒng)，當(dāng)旋擰調(diào)壓螺釘時，通過調(diào)壓彈簧、彈性薄膜裝及活門頂桿，使減壓活門作不同程度的開啟和關(guān)閉，以用來調(diào)節(jié)減壓系統(tǒng)送入的氧氣的減壓程度或停止供氣。壓力高的空氣經(jīng)過節(jié)流閥的節(jié)流在低壓氣室進行膨脹，使高壓空氣變成壓力相對較低的空氣，調(diào)節(jié)節(jié)流閥的開度，對高壓空氣的節(jié)流程度不同，高壓空氣的膨脹效果也不一樣，減壓后的空氣壓力也就不一樣，寧波減溫減壓裝置公司有哪些，寧波減溫減壓裝置公司有哪些。流入低壓室的高壓氣體量增多，使低氣壓室氣體壓力增高；當(dāng)氣體用量減小時，減壓話門開啟度逐漸縮小，使低氣壓室內(nèi)氣體不會增高。如果水質(zhì)不清潔，含有一些雜質(zhì)，必須在減溫減壓裝置的上游進水口安裝過濾器。寧波減溫減壓裝置公司有哪些</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧波減溫減壓裝置公司有哪些,減溫減壓裝置" src="https://tyunfile.71360.com/UploadFile/shdatian/637363664801455078/9699433.png"></div><p style="text-indent:25px">減溫減壓裝置由兩個**作用的止回閥和泄水閥組成，能嚴(yán)格限定管道中的壓力水只能單向流動的水力控制裝置。減壓閥開啟泄壓，減壓閥又關(guān)閉。當(dāng)閥后管網(wǎng)壓力升高，超過閥前進口壓力時，如出口位置上的止回閥密封完好無泄漏，高壓水不會倒流，隔膜左右保持原來的壓差，減壓閥關(guān)閉不泄漏。當(dāng)出口位置上的止回閥密封破壞造成滲漏，出口位置上的止回閥之前壓力升高，造成減壓閥隔膜左右壓差減小，減壓閥打開通過排水口泄壓。用調(diào)壓彈簧直接調(diào)壓，則彈簧剛度必然過大，流量變化時，輸出壓力波動較大，閥的結(jié)構(gòu)尺寸也將增大。為了克服這些缺點，可采用減溫減壓裝置。山東減溫減壓裝置有什么作用減溫減壓裝置保證離地、離墻一定的安裝間距，以便安裝維護。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧波減溫減壓裝置公司有哪些,減溫減壓裝置" src="https://tyunfile.71360.com/UploadFile/shdatian/637363666331748047/3049921.png"></div><p style="text-indent:25px">減溫減壓裝置設(shè)計流量大且實際流量小于設(shè)計流量的10%時，應(yīng)將自動控制狀態(tài)切換為手動控制狀態(tài)，并應(yīng)將冷卻減壓閥和供水調(diào)節(jié)閥設(shè)置為手動控制狀態(tài)。手動控制。入口截止閥控制流量，以防止設(shè)備壓力異常升高。自動控制系統(tǒng)發(fā)生故障時，應(yīng)立即切換到手動操作狀態(tài)，并且只有在排除故障后才能進入自動操作狀態(tài)。當(dāng)設(shè)備受到異常壓力而無法打開安全閥時，請立即打開設(shè)備出口處的排氣閥，以減少設(shè)備的異常壓力并確保個人設(shè)備的安全。如果設(shè)備沒有排氣閥，則可以抬起脈沖安全閥或彈簧式安全閥扳手的手柄以確?，F(xiàn)場安全，然后打開和排放安全閥。</p><p style="text-indent:25px">減溫減壓裝置運行前的準(zhǔn)備工作：必須檢查管道上各法蘭之間、法蘭和附件之間的連接、各閥門的啟閉、及安全閥的動作是否正常；檢查各儀表是否完好，確認各儀表電路已接通。關(guān)閉蒸汽進口處的閘閥和減溫水進口處的截止閥，用手動操作電動執(zhí)行器，驗證減壓閥及給水調(diào)節(jié)閥的行程、閥門全開及全閉時的位置與電動執(zhí)行器行程是否一致。然后確定閥門和電動執(zhí)行器是否可投入正常運行。運行前，本裝置及通向用戶的管道和附件均須進行預(yù)熱。預(yù)熱程序是：將減壓閥稍微開啟（約全行程5%），關(guān)閉減溫水進口處的截止閥，然后慢慢地打開進口處閘閥，輸入新蒸汽進行預(yù)熱。預(yù)熱時蒸汽壓力應(yīng)在0.02~0.05Mpa之間，預(yù)熱時間>60分鐘。為了防止閥后壓力超壓，應(yīng)在離閥出口不少于4M處安裝一個減溫減壓裝置。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧波減溫減壓裝置公司有哪些,減溫減壓裝置" src="https://tyunfile.71360.com/UploadFile/shdatian/637363666223652344/836920.png"></div><p style="text-indent:25px">減溫減壓裝置主要特點：減壓系統(tǒng)和減溫系統(tǒng)分開進行。減壓系統(tǒng)：減壓閥及節(jié)流裝置組成；減溫系統(tǒng)：文丘里氏混合管、電動給水調(diào)節(jié)閥、節(jié)流閥、止回閥、截止閥組成；安全保護系統(tǒng)：主安全閥、沖量安全閥、彈簧安全閥組成。采用雙座減溫閥結(jié)構(gòu)：不平衡力小。調(diào)節(jié)范圍大，動作平衡，無卡阻現(xiàn)象；減溫系統(tǒng)采用文丘里氏+笛型噴嘴，無傳動部件，霧化穩(wěn)定可靠，噴嘴拆裝方便，便于維修；減壓系統(tǒng)和減溫系統(tǒng)分開，主要用于工況惡劣，如高溫高壓（P1≤10MPa,t1≤540℃），避免減溫水沖刷閥體內(nèi)件，或用于壓力較低的過熱蒸汽降至飽和蒸汽的工況：如集中供熱，P1≤13MPa,t1≤250℃，主要考慮蒸汽流速較低，采用文丘里氏減溫，使減溫水分零化，達到較好的減溫效果。減溫減壓裝置應(yīng)及時排除管道中的積氣。山東減溫減壓裝置有什么作用</p><p style="text-indent:25px">全閥每年至少校準(zhǔn)一次，并符合相應(yīng)規(guī)范的要求。寧波減溫減壓裝置公司有哪些</p><p style="text-indent:25px">減溫減壓裝置主要用于熱電站及供熱管網(wǎng)中，對高溫高壓過熱蒸汽進行溫度和壓力調(diào)節(jié)，以達到用戶要求的用熱或動力參數(shù)，保證管網(wǎng)和設(shè)備齊全，高效運行，節(jié)約能源，滿足生產(chǎn)工藝的要求，延長設(shè)備要求。本系統(tǒng)主要有控制系統(tǒng)、減壓裝置、減溫裝置三部分組成，可同時用于減溫減壓，也可單獨進行減溫減壓或減壓。安裝使用要求：安全閥下應(yīng)設(shè)以固定支架，泄壓應(yīng)排至安全處。保證離地、離墻一定的安裝間距，以便安裝維護。前后應(yīng)安裝截止閥、過濾閥，并加旁通以便檢修。減溫減壓裝置后部管道低處應(yīng)安裝輸水閥。減溫減壓裝置前后均應(yīng)安裝溫度表、壓力表。寧波減溫減壓裝置公司有哪些</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2886883.html</p></div></div></div></div></div><div id="s44uo2o" class="page-right twoColRt"><div id="iygoma2" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="oukiqgc" 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配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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