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id="disgauj" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/second-_dzyqj/">電子元器件</a>?<a href="http://www.cdcfah.com/cp/third-dzyqj_ylbsq/">壓力變送器</a>?惠州壓送泵誠(chéng)信服務(wù) 深圳市群勛科技供應(yīng)</p><div id="dsr3og2" class="leftbox clearfix"><h1>惠州壓送泵誠(chéng)信服務(wù) 深圳市群勛科技供應(yīng)</h1><div id="9phaudh" class="proBig"><div id="cxwa9bk" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/qunxun/637215361692314453/3860656.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="qr83lpo" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/qunxun/637215361692314453/3860656.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vgazj8z" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>惠州壓送泵誠(chéng)信服務(wù)</p><p><span>***更新：</span>2020-06-18 05:24:27</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="7db7fxr" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市群勛科技有限公司</a></p><p><span>聯(lián)系人：</span>張華</p><p><span>郵箱: </span>zh@qxunad.com</p><p><span>電話: </span>18603057926</p><p><span>傳真: </span>0755_23156458</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0755-33075040</p><p><span>地址: </span>光明新區(qū)公明街道民生路70號(hào)銘源商務(wù)大廈808室</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="rsgbwrg" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="rx2x2va" class="box"><p><p style="text-indent:25px">為此目的，可以使用循環(huán)泵的診斷系統(tǒng)——Pump Expert。這種系統(tǒng)只需借助少量安設(shè)在泵體上的傳感元件，即可對(duì)泵體和設(shè)備的工作狀態(tài)進(jìn)行有效的監(jiān)控。系統(tǒng)的各種信號(hào)相互連接，并與所儲(chǔ)存的智能**進(jìn)行對(duì)比和調(diào)整。另外，還可以采用智首先，要從錯(cuò)誤的樹狀結(jié)構(gòu)中挑選出具有說(shuō)服力的測(cè)量值。針對(duì)每組測(cè)量值都設(shè)有相應(yīng)的測(cè)量閾值，然后這些數(shù)值相互進(jìn)行邏輯連接。根據(jù)連接情況產(chǎn)生出錯(cuò)誤報(bào)告，并通過(guò)顯示器顯示出來(lái)。在做智能化選擇、閾值確定和連接時(shí)，這種方法還可以附加提供一些信息：當(dāng)泵體還未達(dá)到所設(shè)定的閾值時(shí)，惠州壓送泵誠(chéng)信服務(wù)，邏輯連接單元就會(huì)發(fā)出信號(hào)，預(yù)示泵體將會(huì)進(jìn)入危險(xiǎn)狀態(tài)，惠州壓送泵誠(chéng)信服務(wù)，惠州壓送泵誠(chéng)信服務(wù)。借助于電子裝置和微處理器，可以把這些數(shù)據(jù)和信號(hào)進(jìn)行連接。能診斷方法如故障列表分析方法。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="惠州壓送泵誠(chéng)信服務(wù)" src="http://tyunfile.71360.com/UploadFile/qunxun/637215361692314453/3860656.jpg"></div><p> 高壓往復(fù)泵的使用壓力一般應(yīng)在10MPa～100MPa之間。它屬于容積式泵，借助工作腔里的容積周期性變化來(lái)達(dá)到輸送液體的目的；原動(dòng)機(jī)的機(jī)械能經(jīng)泵直接轉(zhuǎn)化為輸送液體的壓力能；泵的容量只取決于工作腔容積變化值及其在單位時(shí)間內(nèi)的變化次數(shù)，理論上與排出壓力無(wú)關(guān)。往復(fù)泵是借助于活塞在液缸工作腔內(nèi)的往復(fù)運(yùn)動(dòng)（或通過(guò)隔膜、波紋管等撓性元件在工作腔內(nèi)的周期性彈性變形）來(lái)使工作腔容積產(chǎn)生周期性變化的。在結(jié)構(gòu)上，往復(fù)泵的工作腔是借助密封裝置與外界隔開，通過(guò)泵閥（吸入閥和排出閥）與管路溝通或閉合。其特點(diǎn)歸納如下： </p> <p> 瞬時(shí)流量是脈動(dòng)的 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="惠州壓送泵誠(chéng)信服務(wù)" src="http://tyunfile.71360.com/UploadFile/qunxun/637215361789619141/882104.jpg"></div><p style="text-indent:25px">(4)大功率無(wú)換向器電動(dòng)機(jī)拖動(dòng)系統(tǒng)。大功率無(wú)換向器電動(dòng)機(jī)(600r/min以上)也可用于幾千千瓦以上的特大型設(shè)備(同步電動(dòng)機(jī))。某些特大功率(幾萬(wàn)千瓦)的風(fēng)機(jī)和泵，雖不調(diào)速，但需變頗起動(dòng)裝里，也可用大功率無(wú)換向器電動(dòng)機(jī)拖動(dòng)。電控系統(tǒng)圖1為典型的雙閉環(huán)控制晶閘管串級(jí)調(diào)速的電控系統(tǒng)原理圖。如果對(duì)轉(zhuǎn)速變化率沒(méi)有特殊要求，可以采用開環(huán)控制系統(tǒng)，圖2為一泥砂泵的開環(huán)控制串級(jí)調(diào)速電控系統(tǒng)原理圖，電動(dòng)機(jī)采用頻敏變阻器起動(dòng)，起動(dòng)后轉(zhuǎn)變至申級(jí)調(diào)速，調(diào)速由自整角機(jī)組成的移相器進(jìn)行。由于所要求的調(diào)速比一般不大于2:1，故串級(jí)調(diào)速所采用的晶閘管申級(jí)裝里的容量一般為電動(dòng)機(jī)功率的30%~50%。圖1閉環(huán)控制的串級(jí)調(diào)速電控系統(tǒng)原理圖圖3為TOSVERT一13oGI變頗調(diào)速電控系統(tǒng)原理圖。圖中包括主電路、各種保護(hù)配置、調(diào)速控制環(huán)節(jié)。該系統(tǒng)采用大功率晶體管組成的PWM型逆變器和微處理機(jī)編程的正弦波PWM控制，電壓和頻率同時(shí)在逆變器側(cè)加以控制，電流輸出波形近似為正弦波。變頻調(diào)速電控系統(tǒng)除上述PWM型外，還有電壓和頻率**控制的交流一直流一交流電壓型變頻系統(tǒng)和交流一直流一交流電流型變頻系統(tǒng)。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/297855.html</p></div></div></div></div></div><div id="t56yj4x" 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