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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="aegkicw" 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>閔行區(qū)減溫減壓裝置什么牌子好,減溫減壓裝置</p><p><span>***更新：</span>2021-01-15 11:18:19</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="c08888a" 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="o0eocmq" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="yi0mwys" class="box"><p><p style="text-indent:25px">減溫減壓裝置升壓過程中，對(duì)沖量式安全閥必須進(jìn)行整定壓力校驗(yàn)。當(dāng)壓力升高到管道內(nèi)額定壓力的50%時(shí)，將沖量式安全閥的杠桿向上抬起，檢查主安全閥開啟和關(guān)閉動(dòng)作是否靈敏，當(dāng)蒸汽壓力達(dá)到規(guī)定的安全閥整定壓力時(shí)，固定并鎖緊重錘。此時(shí)，閔行區(qū)減溫減壓裝置什么牌子好，沖量安全閥應(yīng)再動(dòng)作一次，檢查其整定壓力是否正常，主安全閥動(dòng)作是否靈敏，有無卡阻現(xiàn)象，閔行區(qū)減溫減壓裝置什么牌子好。然后對(duì)重錘和杠桿加以鉛封或加鎖。若蒸汽管道上裝設(shè)彈簧安全閥，須對(duì)彈簧安全閥作整定壓力，閔行區(qū)減溫減壓裝置什么牌子好、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(duì)安全閥加以鉛封。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。閔行區(qū)減溫減壓裝置什么牌子好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="閔行區(qū)減溫減壓裝置什么牌子好,減溫減壓裝置" src="https://tyunfile.71360.com/UploadFile/shdatian/637363665574609375/7235091.png"></div><p style="text-indent:25px">在減溫減壓裝置的自然頻率和介質(zhì)流動(dòng)所造成的激勵(lì)頻率一致時(shí)，將引起共振，它是減壓閥在一定減壓范圍內(nèi)產(chǎn)生的，而且一旦條件稍有變化，其噪音變化就很大的高頻振動(dòng)；在減溫減壓裝置中重要的便是減溫減壓閥，減溫減壓閥即是通過控制閥內(nèi)的介質(zhì)流量，將介質(zhì)的壓力減低的，在通過閥內(nèi)或閥后噴入冷卻水，使介質(zhì)起到降溫的作用的一種儀器。簡(jiǎn)單的說，減溫減壓閥就是改變溫度和壓力的儀器。這種儀器在熱電廠、集中供熱、石化、印染、造紙、制藥、冶金等行業(yè)中是很常見的。減溫減壓裝置自動(dòng)控制系統(tǒng)出現(xiàn)故障，應(yīng)立即切換到手操狀態(tài)。閔行區(qū)減溫減壓裝置什么牌子好減溫減壓裝置前后應(yīng)安裝截止閥、過濾閥，并加旁通以便檢修。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="閔行區(qū)減溫減壓裝置什么牌子好,減溫減壓裝置" src="https://tyunfile.71360.com/UploadFile/shdatian/637363666583388672/3087583.png"></div><p style="text-indent:25px">當(dāng)換熱器用于制程操作時(shí)，使用過熱蒸汽由于低的傳熱系數(shù)而降低效率，使用飽和蒸汽更加適合。另外當(dāng)高壓的干飽和蒸汽減壓至低壓時(shí)，在下游出口會(huì)產(chǎn)生過熱度。這樣都需要將過熱的蒸汽降溫至所需的接近飽和的溫度，這就需要減溫器。在很多情況下需要對(duì)高壓過熱的蒸汽同時(shí)進(jìn)行減溫和減壓。減溫減壓裝置是節(jié)能環(huán)保產(chǎn)品。減溫減壓裝置配上相應(yīng)的工業(yè)自動(dòng)化儀表（即熱控柜），可對(duì)電站或工業(yè)鍋爐及熱電廠等處輸送來的一次（新）蒸汽壓力P1、溫度T1進(jìn)行減溫減壓，使其二次蒸汽壓力P2、溫度T2達(dá)到生產(chǎn)工藝所需的要求。用于熱電廠、集中供熱、食品工業(yè)、石化工業(yè)、紡織工業(yè)、橡膠工業(yè)、造紙和紙漿工業(yè)和制藥等其它很多行業(yè)。</p><p style="text-indent:25px">減溫減壓裝置設(shè)計(jì)流量大且實(shí)際流量小于設(shè)計(jì)流量的10%時(shí)，應(yīng)將自動(dòng)控制狀態(tài)切換為手動(dòng)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(dòng)控制狀態(tài)。手動(dòng)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(dòng)控制系統(tǒng)發(fā)生故障時(shí)，應(yīng)立即切換到手動(dòng)操作狀態(tài)，并且只有在排除故障后才能進(jìn)入自動(dòng)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(shí)，請(qǐng)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(gè)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(chǎng)安全，然后打開和排放安全閥。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(gè)減溫減壓裝置。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="閔行區(qū)減溫減壓裝置什么牌子好,減溫減壓裝置" src="https://tyunfile.71360.com/UploadFile/shdatian/637363665887490234/7269130.png"></div><p style="text-indent:25px">減溫減壓裝置運(yùn)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(dòng)作是否正常；檢查各儀表是否完好，確認(rèn)各儀表電路已接通。關(guān)閉蒸汽進(jìn)口處的閘閥和減溫水進(jìn)口處的截止閥，用手動(dòng)操作電動(dòng)執(zhí)行器，驗(yàn)證減壓閥及給水調(diào)節(jié)閥的行程、閥門全開及全閉時(shí)的位置與電動(dòng)執(zhí)行器行程是否一致。然后確定閥門和電動(dòng)執(zhí)行器是否可投入正常運(yùn)行。運(yùn)行前，本裝置及通向用戶的管道和附件均須進(jìn)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(jìn)口處的截止閥，然后慢慢地打開進(jìn)口處閘閥，輸入新蒸汽進(jìn)行預(yù)熱。預(yù)熱時(shí)蒸汽壓力應(yīng)在0.02~0.05Mpa之間，預(yù)熱時(shí)間>60分鐘。減溫減壓裝置把用戶提供的蒸汽參數(shù)降到用戶需要合適的溫度和壓力，以滿足用戶的要求。常州減溫減壓裝置公司哪家好</p><p style="text-indent:25px">閘閥應(yīng)安裝在設(shè)備的入口處，以便打開和關(guān)閉。閔行區(qū)減溫減壓裝置什么牌子好</p><p style="text-indent:25px">蒸汽輪機(jī)的溫度需減溫減壓裝置來調(diào)節(jié)的原因：調(diào)節(jié)蒸汽溫度，使鍋爐蒸汽溫度在指定范圍內(nèi)。減溫減壓裝置的制造商告訴我們，蒸汽輪機(jī)的蒸汽溫度非常嚴(yán)格。通常，蒸汽機(jī)的正負(fù)蒸汽溫度不超過5攝氏度，也就是說，蒸汽溫度只能在10攝氏度內(nèi)波動(dòng)。如果蒸汽溫度超過規(guī)定值，則會(huì)縮短過熱器，蒸汽管線，蒸汽輪機(jī)和閥門的使用壽命，嚴(yán)重時(shí)會(huì)損壞設(shè)備。蒸汽溫度低于規(guī)定值會(huì)降低設(shè)備的經(jīng)濟(jì)性。當(dāng)蒸汽溫度降低10°C時(shí)，設(shè)備的經(jīng)濟(jì)效率降低0.6%-0.8%。而且由于影響蒸汽溫度的因素很多，為了使蒸汽溫度保持在指定范圍內(nèi)，必須調(diào)節(jié)蒸汽溫度。調(diào)節(jié)蒸汽溫度的方法有很多，并且使用通過使用減溫器來調(diào)節(jié)蒸汽溫度的方法。閔行區(qū)減溫減壓裝置什么牌子好</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2859317.html</p></div></div></div></div></div><div id="ya0umeq" class="page-right twoColRt"><div id="okosuqs" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8kuswse" 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)" 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