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src="https://tyunfile.71360.com/UploadFile/shdatian/637343241264736328/8875293.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="en3ccwx" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdatian/637343241264736328/8875293.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ix4rtfc" 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>江蘇流量閥廠家報價,自動再循環(huán)閥</p><p><span>***更新：</span>2021-01-30 04:24:57</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="w2abdf2" 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="z432gdf" class="page-proshow02"><p class="title">詳細說明</p><div id="he4vhjl" class="box"><p><p style="text-indent:25px"> 自動再循環(huán)閥又稱自動再循環(huán)閥或小流量閥，用于離心泵小流量的自動再循環(huán)，防止離心泵在低負載下由于過熱，噪音，江蘇流量閥廠家報價、振動帶來的損壞。自動再循環(huán)閥為自力式控制閥，不需要外部供給能源。與傳統(tǒng)的控制閥系統(tǒng)相比，具有以下明顯優(yōu)勢：在前期產(chǎn)品采購，江蘇流量閥廠家報價、安裝調(diào)試，以及后期的維護方面，具有明顯的成本優(yōu)勢，總體費用比傳統(tǒng)控制閥系統(tǒng)低2/3旁路流量可調(diào)節(jié)控制，江蘇流量閥廠家報價，閥門整體運行具有高經(jīng)濟性完全機械結(jié)構(gòu)，依靠流量控制閥門，不需要額外的能源。實現(xiàn)泵的保護只只只需一個閥，不需其他額外組件。因此不受系統(tǒng)故障影響。自動再循環(huán)閥可以將泵正常運行所需要的小流量通過旁路吸入到存儲裝置中。江蘇流量閥廠家報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇流量閥廠家報價,自動再循環(huán)閥" src="https://tyunfile.71360.com/UploadFile/shdatian/637343241264736328/8875293.png"></div><p style="text-indent:25px"> 現(xiàn)代工業(yè)設(shè)備工藝過程中，要求自動再循環(huán)閥基本上都是在變流量的狀態(tài)下工作，這就需要在工藝過程中有設(shè)置自動控制設(shè)備(離心自動再循環(huán)閥)。然而離心泵在低于負荷運行時會出現(xiàn)過熱、嚴重噪聲、不穩(wěn)定和氣蝕而引起泵的損壞。這是需要一種自動再循環(huán)設(shè)備，在泵低于負荷運行時，通過旁路實現(xiàn)泵小流量回流循環(huán)。自動再循環(huán)閥用于防止各種離心泵在低于負荷運行時由于過熱、嚴重噪聲、不穩(wěn)定和氣蝕而引起的損壞。只要泵的流量低于一定數(shù)值，旁路回流閥的閥口就會自動的打開，以此來保證液泵所必須的小流量。浙江流量保護閥種類有哪些自動再循環(huán)閥蝶板的運動帶有擦拭性，故大多數(shù)的自動再循環(huán)閥可用于帶懸浮固體顆粒的介質(zhì).</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇流量閥廠家報價,自動再循環(huán)閥" src="https://tyunfile.71360.com/UploadFile/shdatian/637343243029707031/6971853.png"></div><p style="text-indent:25px"> 自動再循環(huán)閥施工、安裝要點：安裝位置、高度、進出口方向有必要契合規(guī)劃要求，注意介質(zhì)活動的方向應(yīng)與閥體所標箭頭方向一致，連接應(yīng)結(jié)實緊密。閥門安裝前有必要進行外觀檢查，閥門的銘牌應(yīng)契合現(xiàn)行標準《通用閥門標志》GB12220的規(guī)定。關(guān)于工作壓力大于1.0MPa及在主干管上起到切斷作用的閥門，安裝前應(yīng)進行強度和緊密性能實驗，合格后方準使用。強度實驗時，實驗壓力為公稱壓力的1.5倍，持續(xù)時刻不少于5min，閥門殼體、填料應(yīng)無滲漏為合格。緊密性實驗時，實驗壓力為公稱壓力的1.1倍；實驗持續(xù)的時刻契合GB50243的。</p><p style="text-indent:25px"> 自動再循環(huán)閥可將泵正常運轉(zhuǎn)所需的小流量旁通到泵吸入設(shè)備，防止泵過熱，氣蝕。自控回流閥具有止回功能，阻止介質(zhì)回流到泵內(nèi)。自動再循環(huán)閥根據(jù)感應(yīng)到的主路流量不同,的主閥瓣止回錐將自動移動到某一個位置上.同時主閥瓣帶動旁路閥閥桿,將主閥瓣動作傳遞至旁路,通過控制旁路閥閥瓣的位置,改變旁路的節(jié)流面積,從而控制旁路的流量.當主閥瓣回至閥座關(guān)閉狀態(tài)時,所有流量通過旁路回流.當主閥瓣上升至頂端位置時,旁路則完全關(guān)閉,所有泵的流量流向工節(jié)系統(tǒng)。自動再循環(huán)閥初度運轉(zhuǎn)時，要供認電動機滾動的方向是不是精確.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇流量閥廠家報價,自動再循環(huán)閥" src="https://tyunfile.71360.com/UploadFile/shdatian/637343243255712890/3607482.png"></div><p style="text-indent:25px"> 自動再循環(huán)閥的結(jié)構(gòu)長度和總體高度較小，開啟和關(guān)閉速度較快，且具有良好的流體控制特性。自動再循環(huán)閥的結(jié)構(gòu)原理適合于制作大口徑閥門。當要求自動再循環(huán)閥作控制流量使用時，重要的是正確選擇自動再循環(huán)閥的規(guī)格和類型，使之能恰當?shù)?、有效地工作。通常，在?jié)流、調(diào)節(jié)控制與泥漿介質(zhì)中，要求結(jié)構(gòu)長度短、啟閉速度快、低壓截止(壓差小)，推薦選用自動再循環(huán)閥。在雙位調(diào)節(jié)、縮徑的通道、低噪聲、有氣穴和汽化現(xiàn)象、向大氣少量滲漏、具有磨蝕性介質(zhì)時，可選用自動再循環(huán)閥。在特殊工況條件下節(jié)流調(diào)節(jié)，或要求密封嚴格、磨損嚴重、低溫(深冷)等工況條件下。自動再循環(huán)閥在完全開啟時，具有較小的流阻。浙江流量保護閥種類有哪些</p><p style="text-indent:25px">自動再循環(huán)閥為自力式控制閥，不需要外部供給能源。江蘇流量閥廠家報價</p><p style="text-indent:25px"> 減溫減壓裝置，閥對流量的控制可以分為兩種。一種是開關(guān)控制，一種是連續(xù)控制，伺服閥和其它閥不同的是，它的能量損失更大一些，因為它需要一定的流量來維持前置級控制油路的工作。一種是開關(guān)控制：要么全開、要么全關(guān)，流量要么大、要么小，沒有中間狀態(tài)，如普通的電磁直通閥、電磁換向閥、電液換向閥。另一種是連續(xù)控制：閥口可以根據(jù)需要打開任意一個開度，由此控制通過流量的大小，這類閥有手動控制的，如節(jié)流閥，也有電控的，如減溫減壓裝置、伺服閥。江蘇流量閥廠家報價</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3074150.html</p></div></div></div></div></div><div id="v9vhjl3" class="page-right twoColRt"><div id="pgf8879" class="box01 margin10 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