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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>常用液壓技術(shù),液壓</p><p><span>***更新：</span>2020-12-13 00:24:47</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="n3szb33" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海邁頜信息科技有限公司</a></p><p><span>聯(lián)系人：</span>王欽</p><p><span>郵箱: </span>834334323@qq.com</p><p><span>電話(huà): </span>18917232386</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.maihetech.com</p><p><span>手機(jī): </span>021-62086881</p><p><span>地址: </span>上海市松江區(qū)九亭鎮(zhèn)九亭中心路1158號(hào)21幢708室-2A</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="dsp8l8o" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="2d2y8co" class="box"><p><p style="text-indent:25px">液壓快速接頭在使用時(shí)注意：薄膜式液壓快速接頭，適用于低壓、中壓、中小口徑的蒸汽或水等介質(zhì)；液壓快速接頭進(jìn)口壓力的波動(dòng)應(yīng)控制在進(jìn)口壓力給定值的80%～105%，常用液壓技術(shù)，如超過(guò)該范圍，常用液壓技術(shù)，常用液壓技術(shù)，減壓前期的性能會(huì)受影響；通常液壓快速接頭的接頭后壓力應(yīng)小于接頭前壓力的0.5倍；液壓快速接頭的每一檔彈簧只在一定的出口壓力范圍內(nèi)適用，超出范圍應(yīng)更換彈簧；在介質(zhì)工作溫度比較高的場(chǎng)合，一般選用先導(dǎo)活塞式液壓快速接頭或先導(dǎo)波紋管式液壓快速接頭；介質(zhì)為空氣或水（液體）的場(chǎng)合，一般宜選用直接作用薄膜式液壓快速接頭或先導(dǎo)薄膜式液壓快速接頭；介質(zhì)為蒸汽的場(chǎng)合，宜選用先導(dǎo)活塞式或先導(dǎo)波紋管式液壓快速接頭；為了操作、調(diào)整和維修的方便，液壓快速接頭一般應(yīng)安裝在水平管道上。液壓快速接頭在組裝后要進(jìn)行測(cè)試。常用液壓技術(shù)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常用液壓技術(shù),液壓" src="https://tyunfile.71360.com/UploadFile/shanghaimaihe/637368233442285156/2555444.png"></div><p style="text-indent:25px">液壓快速接頭選用標(biāo)準(zhǔn)：標(biāo)準(zhǔn)一在給定的彈簧壓力級(jí)范圍內(nèi)，使出口壓力在大值與小值之間能連續(xù)調(diào)整，不得有卡阻和異常振動(dòng)；標(biāo)準(zhǔn)二對(duì)于軟密封的液壓快速接頭，在規(guī)定的時(shí)間內(nèi)不得有滲漏；對(duì)于金屬密封的液壓快速接頭，其滲漏量應(yīng)不大于大流量的0.5%；標(biāo)準(zhǔn)三出口流量變化時(shí),直接作用式的出口壓力偏差值不大于20%,先導(dǎo)式不大于10%；標(biāo)準(zhǔn)四進(jìn)口壓力變化時(shí)，直接作用式的出口壓力偏差不大于10%，先導(dǎo)式的不大于5%；標(biāo)準(zhǔn)五通常，液壓快速接頭的接頭后壓力應(yīng)小于接頭前壓力的0.5倍；常用液壓技術(shù)液壓快速接頭其優(yōu)點(diǎn)是響應(yīng)時(shí)間快，通過(guò)反饋系統(tǒng)對(duì)速度，位置和轉(zhuǎn)矩進(jìn)行準(zhǔn)確地控制。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常用液壓技術(shù),液壓" src="https://tyunfile.71360.com/UploadFile/shanghaimaihe/637368233331025390/6210550.png"></div><p style="text-indent:25px">液壓快速接頭的特點(diǎn)，是在進(jìn)口壓力不斷變化的情況下，保持出口處壓力和溫度值在一定的范圍內(nèi)。減壓接頭是液壓調(diào)節(jié)接頭的一個(gè)必備配件，主要作用是將氣源的壓力減壓并穩(wěn)定到一個(gè)定值，以便于調(diào)節(jié)接頭能夠獲得穩(wěn)定的氣源動(dòng)力用于調(diào)節(jié)控制。本類(lèi)接頭在管道中一般應(yīng)當(dāng)水平安裝。減溫減壓接頭工作原理：壓力空氣，由左端輸入經(jīng)接頭口節(jié)流后，壓力降為輸出。大小可由調(diào)壓彈簧進(jìn)行調(diào)節(jié)。順時(shí)針旋轉(zhuǎn)旋鈕，壓縮彈簧及膜片使接頭芯下移，增大接頭口的開(kāi)度增大。若反時(shí)針旋轉(zhuǎn)旋鈕，接頭口的開(kāi)度減小，隨之減小。</p><p style="text-indent:25px">液壓快速接頭的作用：(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(duì)蒸汽溫度要求很?chē)?yán)格，一般要求比額定汽溫正負(fù)不超過(guò)5℃，即汽溫只能允許在10℃范圍內(nèi)波動(dòng)。汽溫超過(guò)規(guī)定值，會(huì)使過(guò)熱器、蒸汽管道、汽輪機(jī)及接頭等設(shè)備壽命降低，嚴(yán)重時(shí)可使上述設(shè)備損壞。汽溫低于規(guī)定值，會(huì)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(duì)蒸汽溫度進(jìn)行調(diào)整。調(diào)整汽溫的方法很多，液壓快速接頭調(diào)整汽溫是普遍采用的方法。液壓快速接頭排除故障后才能投入運(yùn)行。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常用液壓技術(shù),液壓" src="https://tyunfile.71360.com/UploadFile/shanghaimaihe/637368233358945312/1473678.png"></div><p style="text-indent:25px">液壓快速接頭選用說(shuō)明：液壓快速接頭的應(yīng)用范圍很廣，在蒸汽、壓縮空氣、工業(yè)用氣、水、油和許多其他液體介質(zhì)的設(shè)備和管路上均可使用，介質(zhì)流經(jīng)液壓快速接頭出口處的量，一般用質(zhì)量流量或體積流量表示；波紋管直接作用式液壓快速接頭適用于低壓、中小口徑的蒸汽介質(zhì)；薄膜直接作用式液壓快速接頭適用于中低壓、中小口徑的空氣、水介質(zhì)；先導(dǎo)活塞式液壓快速接頭，適用于各種壓力、各種口徑、各種溫度的蒸汽、空氣和水介質(zhì)，若用不銹耐酸鋼制造，可適用于各種腐蝕性介質(zhì)；先導(dǎo)波紋管式液壓快速接頭，適用于低壓、中小口徑的蒸汽、空氣等介質(zhì)；液壓快速接頭維護(hù)操作時(shí)是應(yīng)該由專(zhuān)業(yè)人員執(zhí)行的。常用液壓技術(shù)</p><p style="text-indent:25px">液壓快速接頭裝置在底部的軸裝配空上形狀為雙四方形，這個(gè)特點(diǎn)就有利于液壓快速接頭的轉(zhuǎn)角安裝。常用液壓技術(shù)</p><p style="text-indent:25px">減溫減壓接頭的壓力調(diào)節(jié)是通過(guò)壓力變送器和調(diào)節(jié)器，再由電動(dòng)（液壓）執(zhí)行機(jī)構(gòu)操縱，帶動(dòng)與減溫減壓接頭接頭瓣相連的接頭桿，使接頭瓣在套筒內(nèi)上下運(yùn)動(dòng)，以改變介質(zhì)流通面積來(lái)達(dá)到節(jié)流減壓的目的；減溫減壓接頭的溫度調(diào)節(jié)是減溫水經(jīng)調(diào)節(jié)接頭粗調(diào)后由噴嘴（接頭瓣上噴嘴孔的相對(duì)流通面積與減壓實(shí)現(xiàn)同步可調(diào)）噴入接頭腔內(nèi)，與高速蒸汽混合霧化，使蒸汽溫度降到工藝要求。第五代減溫減壓接頭接頭體采用球形，上下腔均為半球形流線(xiàn)型結(jié)構(gòu)，有利于流體的無(wú)阻塞流動(dòng)。減壓通過(guò)接頭座及套筒實(shí)現(xiàn)多級(jí)減壓。在執(zhí)行機(jī)構(gòu)的推動(dòng)下。常用液壓技術(shù)</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2376581.html</p></div></div></div></div></div><div id="glwo7ln" class="page-right twoColRt"><div id="jtf7vfg" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="wqxpwif" 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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