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src="https://tyunfile.71360.com/UploadFile/shdatian/637363666583388672/3087583.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="rctlx3u" 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>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>陜西減溫減壓裝置怎么樣,減溫減壓裝置</p><p><span>***更新：</span>2021-02-05 00:21:30</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="gyqszbi" 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="mgdfhtl" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ncurtac" class="box"><p><p style="text-indent:25px"> 減溫減壓裝置在修理拆裝減壓元件時，要謹(jǐn)慎細(xì)心，調(diào)換內(nèi)密封件；清理雜物時，應(yīng)因勢利導(dǎo)，不要用金屬棒、硬梗撬閥的活動部位，使用木榔頭和木柄敲擊震動，慢慢拆卸閥內(nèi)部件。修理完畢后重新安裝時，一定要和閥門上的流向指示保持一致。如果需要將減溫減壓裝置安裝在熱水系統(tǒng)時，您必須在減溫減壓裝置和膨脹水箱之間安裝止回閥。這樣既可以讓膨脹水箱吸收由于熱膨脹而增加的水的體積，陜西減溫減壓裝置怎么樣，又可以防止熱水回流或壓力波動對減溫減壓裝置的影響，陜西減溫減壓裝置怎么樣，確保減溫減壓裝置長期正常工作。減壓的工作原理是蒸汽通過減溫減壓閥或節(jié)流孔板，陜西減溫減壓裝置怎么樣，流通面積減少，使蒸汽動能增加造成壓力損失。陜西減溫減壓裝置怎么樣</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西減溫減壓裝置怎么樣,減溫減壓裝置" src="https://tyunfile.71360.com/UploadFile/shdatian/637363666583388672/3087583.png"></div><p style="text-indent:25px"> 先導(dǎo)式減溫減壓裝置當(dāng)減溫減壓裝置的輸出壓力較高或通徑較大時，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，可采用先導(dǎo)式減溫減壓裝置。先導(dǎo)式減溫減壓裝置的工作原理與直動式的基本相同。先導(dǎo)式減溫減壓裝置所用的調(diào)壓氣體，是由小型的直動式減溫減壓裝置供給的。若把小型直動式減溫減壓裝置裝在閥體內(nèi)部，則稱為內(nèi)部先導(dǎo)式減溫減壓裝置；若將小型直動式減溫減壓裝置裝在主閥體外部，則稱為外部先導(dǎo)式減溫減壓裝置。與直動式減溫減壓裝置相比，增加了由噴嘴、擋板、固定節(jié)流孔及氣室所組成的噴嘴擋板放大環(huán)節(jié)。當(dāng)噴嘴與擋板之間的距離發(fā)生微小變化時，就會使壓力發(fā)生根明顯的變化，從而引起膜片有較大的位移，去控制閥芯的上下移動，使進(jìn)氣閥口開大或關(guān)小、提高了對閥芯控制的靈敏度，即提高了穩(wěn)壓精度。陜西減溫減壓裝置怎么樣減溫減壓裝置調(diào)試完畢，蒸汽參數(shù)正常后，即可投入到自動控制狀態(tài)運行。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西減溫減壓裝置怎么樣,減溫減壓裝置" src="https://tyunfile.71360.com/UploadFile/shdatian/637363666223652344/836920.png"></div><p style="text-indent:25px"> 減溫減壓裝置的作用：(1)調(diào)整汽溫，使鍋爐送出的蒸汽溫度在規(guī)定的范圍內(nèi)。汽輪機(jī)對蒸汽溫度要求很嚴(yán)格，一般要求比額定汽溫正負(fù)不超過5℃，即汽溫只能允許在10℃范圍內(nèi)波動。汽溫超過規(guī)定值，會使過熱器、蒸汽管道、汽輪機(jī)及閥門等設(shè)備壽命降低，嚴(yán)重時可使上述設(shè)備損壞。汽溫低于規(guī)定值，會降低機(jī)組的經(jīng)濟(jì)性。汽溫降低10℃，機(jī)組的經(jīng)濟(jì)性降低0.6%～0.8%。由于影響汽溫的因素很多，為了保持蒸汽溫度在規(guī)定范圍內(nèi)，必須對蒸汽溫度進(jìn)行調(diào)整。調(diào)整汽溫的方法很多，減溫減壓裝置調(diào)整汽溫是普遍采用的方法。</p><p style="text-indent:25px">減溫減壓裝置出口蒸汽流量變化范圍為30%Q~100%Q，特殊需要者可由供需雙方協(xié)商。減溫減壓裝置額定出口蒸汽壓力P2，減溫減壓裝置額定出口蒸汽壓力的偏差范圍是：①當(dāng)額定出口蒸汽壓力小于0.98MPa時，為P2±0.04MPa； ②當(dāng)額定出口蒸汽壓力不大于3.82MPa時，為P2±0.06MPa；③當(dāng)額定出口蒸汽壓力大于3.82MPa時，為P2±0.15MPa。額定出口蒸汽溫度t2：額定出口蒸汽溫度必須在飽和溫度以上（含飽和溫度）；額定出口蒸汽溫度的偏差范圍的值為額定出口蒸汽溫度t2±5℃。減溫減壓裝置正常運行時，在減溫減壓閥（減壓閥）出口中心線同一水平面下游1m處測其噪聲，總體噪聲水平不大于85dB(A)。減溫減壓裝置是用來調(diào)節(jié)蒸汽壓力、溫度的重要裝置。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西減溫減壓裝置怎么樣,減溫減壓裝置" src="https://tyunfile.71360.com/UploadFile/shdatian/637363665488730469/5001737.png"></div><p style="text-indent:25px"> 注意減溫減壓裝置的減壓保障系統(tǒng)。無論選用比例式還是可調(diào)式減溫減壓裝置，其減壓比P1∶P2不宜選擇過大，一般應(yīng)控制在5∶1之內(nèi)。超過這個范圍易產(chǎn)生氣蝕現(xiàn)象，損壞閥件，產(chǎn)生嘯叫噪音。有些活塞式減溫減壓裝置，制造廠在其閥體上加工一個直徑1.5mm左右的小孔，其功能是讓閥芯運動時起到透吸氣作用，維護(hù)管理時應(yīng)注意千萬不要將小孔塞住，否則影響減溫減壓裝置的正常運行。減溫減壓裝置的減壓保障系統(tǒng)是重中之重，工作人員在維護(hù)管理時要遵守規(guī)范，否則操作不當(dāng)會直接影響減溫減壓裝置的正常運轉(zhuǎn)工作。減溫減壓裝置無傳動部件，減溫水霧化效果好.陜西減溫減壓裝置怎么樣</p><p style="text-indent:25px">給水系統(tǒng)清洗也應(yīng)分階段進(jìn)行，裝有給水節(jié)流裝置的，先要把節(jié)流裝置前面的給水管路清洗。陜西減溫減壓裝置怎么樣</p><p style="text-indent:25px"> 減溫減壓裝置的運行操作：1.要避免存留臟物、雜物進(jìn)入減溫減壓裝置減壓保障系統(tǒng)。新建或者改造工程的減壓系統(tǒng)管網(wǎng)，很可能遺留沙粒、麻絲、雜物。投運前，一般都應(yīng)進(jìn)行水沖洗，滿足清潔要求后，后裝上減溫減壓裝置和過濾器濾芯，這樣才能避免雜物流入減溫減壓裝置，杜絕減溫減壓裝置卡芯現(xiàn)象。在系統(tǒng)進(jìn)入工作后，保障減壓系統(tǒng)的水流暢通與否，與設(shè)置在系統(tǒng)上的過濾器流通能力關(guān)系密切，如濾芯被雜物嚴(yán)重吸附，則會影響減溫減壓裝置的工作，為此必需對過濾器進(jìn)行定期檢查，及時去除污穢。實踐表明這項工作2至3個月必須進(jìn)行一次，有些可調(diào)式(彈簧式、薄膜式)減溫減壓裝置，其主閥或者導(dǎo)閥自身設(shè)置過濾器，同樣需要定期拆洗濾芯。陜西減溫減壓裝置怎么樣</p></p><br /><p>文章來源地址: 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