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src="https://tyunfile.71360.com/UploadFile/shdatian/637363665574609375/7235091.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="rbvhjv2" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdatian/637363665574609375/7235091.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="zdce8u9" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>湖南減溫減壓裝置批發(fā)廠家,減溫減壓裝置</p><p><span>***更新：</span>2021-01-02 12:25:28</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="h7rgxp7" 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(jī): </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="kjgik7n" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="azlikrv" class="box"><p><p style="text-indent:25px">減溫減壓裝置預(yù)熱后，逐漸打開減溫減壓閥前面的切斷閥，同時(shí)關(guān)閉旁通閥，以每分鐘0.1~0.15Mpa壓力進(jìn)行升壓，在升壓的同時(shí)，手動(dòng)操縱減溫減壓閥，給水調(diào)節(jié)閥執(zhí)行機(jī)構(gòu)的手輪，以保證蒸汽參數(shù)在規(guī)定范圍內(nèi)，湖南減溫減壓裝置批發(fā)廠家。若蒸汽管道上裝設(shè)彈簧安全閥，須對彈簧安全閥作整定壓力，湖南減溫減壓裝置批發(fā)廠家、回座壓力試驗(yàn)，檢查其整定壓力是否正常，動(dòng)作是否靈敏，有無卡阻現(xiàn)象。達(dá)到要求后，再對安全閥加以鉛封。減溫減壓裝置調(diào)試完畢，蒸汽參數(shù)正常后，即可投入到自動(dòng)控制狀態(tài)運(yùn)行。自動(dòng)控制儀表和熱力控制柜的調(diào)試按“自動(dòng)控制儀表說明書”和“控制裝置說明書”進(jìn)行，湖南減溫減壓裝置批發(fā)廠家。減溫減壓裝置由減壓系統(tǒng)，降低過熱系統(tǒng)和安全系統(tǒng)組成。湖南減溫減壓裝置批發(fā)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南減溫減壓裝置批發(fā)廠家,減溫減壓裝置" src="https://tyunfile.71360.com/UploadFile/shdatian/637363665574609375/7235091.png"></div><p style="text-indent:25px">減溫減壓裝置安裝在易燃、易爆場合的，減溫減壓閥（減壓閥）、調(diào)節(jié)閥等閥門，其驅(qū)動(dòng)機(jī)構(gòu)應(yīng)采用防爆型，建議采用隔爆型電動(dòng)執(zhí)行機(jī)構(gòu)或氣動(dòng)執(zhí)行機(jī)構(gòu)，電氣控制部分也應(yīng)采用隔爆型；為了方便減溫減壓閥（減壓閥）解體維修，該閥安裝時(shí)需離地平面有一定的高度，具體尺寸按減溫減壓裝置總圖；裝置出口測溫和測壓點(diǎn)必須在裝置出口1m以后；對新安裝或檢修后重新使用的安全閥，都應(yīng)校驗(yàn)其整定壓力和密封壓力。安全閥校驗(yàn)后，須加鎖或鉛封。在用的安全閥每年至少校驗(yàn)一次，并符合相應(yīng)規(guī)范；建議在減溫減壓裝置的出口處裝設(shè)對空排汽閥。湖南減溫減壓裝置批發(fā)廠家減壓閥的檢修用刷子去除閥門外部的鐵銹。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南減溫減壓裝置批發(fā)廠家,減溫減壓裝置" src="https://tyunfile.71360.com/UploadFile/shdatian/637363664908164062/5218851.png"></div><p style="text-indent:25px">減溫減壓裝置上的疏水閥，當(dāng)壓力達(dá)到規(guī)定值時(shí)，自動(dòng)將冷凝水排出。減溫減壓裝置調(diào)試完畢，蒸汽參數(shù)正常后，即可投入到自動(dòng)控制狀態(tài)運(yùn)行。自動(dòng)控制儀表和熱力控制柜的調(diào)試按“自動(dòng)控制儀表說明書”和“控制裝置說明書”進(jìn)行。減溫減壓裝置停止工作時(shí)，應(yīng)預(yù)先通告鍋爐房及用戶。先逐漸關(guān)閉入口處切斷閥，然后手動(dòng)關(guān)閉減壓閥和給水調(diào)節(jié)閥，使蒸汽壓力和溫度漸漸降低，即時(shí)逐漸打開通往排水管的截止閥，使減溫水排放通暢。確認(rèn)斷汽后，關(guān)閉出口處切斷閥，再檢查入口處切斷閥關(guān)閉是否嚴(yán)密。</p><p style="text-indent:25px">減溫減壓裝置的特性：實(shí)現(xiàn)降壓不消耗能量，并且該裝置可以增加蒸汽供應(yīng)。結(jié)構(gòu)簡單，無旋轉(zhuǎn)部件，運(yùn)行可靠。易于操作，易于維修且可自動(dòng)調(diào)節(jié)。節(jié)能效果顯著。減壓閥采用控制閥體內(nèi)的開閉部件的開度來調(diào)節(jié)介質(zhì)的流量，降低介質(zhì)的壓力，并通過調(diào)節(jié)閥的作用來調(diào)節(jié)開閉部件的開度。閥門后方的壓力，使閥門后方的壓力保持在一定范圍內(nèi)。而且在內(nèi)部，冷卻水被噴入閥體內(nèi)或閥后，以降低介質(zhì)的溫度。這種閥稱為真空減溫閥。該閥的特點(diǎn)是在入口壓力恒定變化的情況下，將出口壓力和溫度保持在一定范圍內(nèi)。減壓閥是氣動(dòng)調(diào)節(jié)閥的重要附件。其主要功能是將氣源的壓力減壓并穩(wěn)定在一個(gè)固定值，以便調(diào)節(jié)閥可以獲得穩(wěn)定的氣源功率以進(jìn)行調(diào)節(jié)控制。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(hù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南減溫減壓裝置批發(fā)廠家,減溫減壓裝置" src="https://tyunfile.71360.com/UploadFile/shdatian/637363666583388672/3087583.png"></div><p style="text-indent:25px">當(dāng)客戶在使用減溫減壓裝置中碰到問題的時(shí)候的辦法講解一下，支吊架懸空、簡體彎曲原因分析管道截面上部溫度高于下部溫度，將造成管道軸向彎曲變形，與實(shí)際管道的變形理論分析一致，說明管道截面上下溫差是導(dǎo)致管道彎曲變形及支吊架脫空的主要原因。焊縫開裂原因分析管道在熱脹、冷縮及其他位移受約束時(shí)所產(chǎn)生的應(yīng)力稱為二次應(yīng)力)。允許應(yīng)力值為52.00MPa[出自于《火力發(fā)電廠汽水管道應(yīng)力計(jì)算技術(shù)規(guī)定》)(SDGJ6—90)。大小頭的小頭處一次應(yīng)力為35.71MPa。由此說明兩點(diǎn)：①中間支架懸空，減溫減壓器一次應(yīng)力超標(biāo)，噴水閥后管道容易產(chǎn)生裂紋;②中間支吊架懸空，在大小頭處的小頭處一次應(yīng)力并不大(一次應(yīng)力合格)，支架懸空情況下，管系應(yīng)力不是該處產(chǎn)生裂紋的主要原因。二次減溫減壓裝置壓力達(dá)到額定壓力的50%時(shí)，用手抬起安全閥桿，檢查安全閥的密封性和靈敏度。湖南減溫減壓裝置批發(fā)廠家</p><p style="text-indent:25px">減溫減壓裝置由兩個(gè)**作用的止回閥和泄水閥組成。湖南減溫減壓裝置批發(fā)廠家</p><p style="text-indent:25px">減溫減壓器/裝置，顧名思義，就是將高溫高壓蒸汽降為客戶能夠使用的低壓低溫蒸汽（可為過熱蒸汽）。按照減溫和減壓是否一體，可分為以下兩類一體式減溫減壓器，減溫和減壓在同一個(gè)減溫減壓閥內(nèi)進(jìn)行。分體式減溫減壓器，減溫和減壓分開進(jìn)行，減壓采用單獨(dú)減壓閥其中分體式減溫減壓器，控制精度高，運(yùn)行平穩(wěn)，調(diào)節(jié)靈敏，可有效消除靜差影響等優(yōu)點(diǎn)，減壓裝置：蒸汽的減壓過程是由減壓閥和節(jié)流孔板的節(jié)流來實(shí)現(xiàn)的，其減壓級數(shù)由新蒸汽減壓后蒸汽壓力之差來決定。減壓閥的壓力調(diào)節(jié)是通過大執(zhí)行器電動(dòng)執(zhí)行機(jī)構(gòu)來完成，運(yùn)行平穩(wěn)，壽命長，根據(jù)二次蒸汽設(shè)定值要求，無論一次蒸汽壓力如何波動(dòng)，均能保持二次正氣壓力穩(wěn)定。湖南減溫減壓裝置批發(fā)廠家</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2673827.html</p></div></div></div></div></div><div id="28h0q7h" class="page-right twoColRt"><div id="3covcev" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8tvmtar" 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" 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