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clearfix"><div id="32z7opx" class="twoCol"><div id="r78fx7n" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<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>?全新壓送泵質(zhì)量服務(wù) 深圳市群勛科技供應(yīng)</p><div id="m3y9ce7" class="leftbox clearfix"><h1>全新壓送泵質(zhì)量服務(wù) 深圳市群勛科技供應(yīng)</h1><div id="m8kdpes" class="proBig"><div id="dheb32u" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/qunxun/637213611266767579/3670217.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="uyvceqn" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/qunxun/637213611266767579/3670217.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="293xu38" 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>全新壓送泵質(zhì)量服務(wù),壓送泵</p><p><span>***更新：</span>2020-08-19 14:19:14</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="v8pj84a" 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="lkcjlnp" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="edqif3n" class="box"><p><p style="text-indent:25px">(3)變頻調(diào)速拖動(dòng)系統(tǒng)。這是一種理想的拖動(dòng)系統(tǒng)，且可使用籠型感應(yīng)電動(dòng)機(jī)(或同步電動(dòng)機(jī))，具有申級(jí)調(diào)速拖動(dòng)系統(tǒng)效率高的優(yōu)點(diǎn)。如采用脈寬調(diào)制(PWM)變頻調(diào)速，還可提高系統(tǒng)的功率因數(shù)和減小諳波。晶體管PWM電壓型交流一直流一交流變頻調(diào)速可用于100~200 kw設(shè)備，晶閘管電流型交流一直流一交流變頻調(diào)速可用于幾百千瓦至2000 kw大型設(shè)備，全新壓送泵質(zhì)量服務(wù)。交流一交流直接變頻調(diào)速(600r/min以下)可用于幾千千瓦以上的特大型設(shè)備(同步電動(dòng)機(jī)).這種拖動(dòng)系統(tǒng)的控制電路復(fù)雜，全新壓送泵質(zhì)量服務(wù)，全新壓送泵質(zhì)量服務(wù)，總投資較高，甚至高達(dá)電磁調(diào)速電動(dòng)機(jī)的4~5倍。使液體壓力達(dá)到設(shè)定值并保持恒定(也可控制輸出流量)。全新壓送泵質(zhì)量服務(wù)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="全新壓送泵質(zhì)量服務(wù),壓送泵" src="http://tyunfile.71360.com/UploadFile/qunxun/637213611266767579/3670217.jpg"></div><p style="text-indent:25px">這是一種**簡單的控制方法，即操作人員根據(jù)儀表指示，手動(dòng)調(diào)節(jié)變頻器的頻率以改變風(fēng)量或流量，滿足生產(chǎn)要求。這種方法適合于任何型式的變頻器，常用于老設(shè)備的技術(shù)改造。FWD為正轉(zhuǎn)信號(hào)輸入端，CM為輸入信號(hào)的公共端，SB為轉(zhuǎn)換開關(guān)。當(dāng)SB閉合時(shí)，電動(dòng)機(jī)M正向起動(dòng)；SB斷開時(shí)，電動(dòng)機(jī)便停止。保留原設(shè)備的起動(dòng)裝置，將檔板、閥門完全開放，平時(shí)令KM1、KM3接通，采用變頻器傳動(dòng)。如果變頻器發(fā)生故障或需要檢修，則斷開KM3，令KM2接通，采用原設(shè)備起動(dòng)裝置和擋板閥門進(jìn)行運(yùn)轉(zhuǎn)。為了確保安全，KM2和KM3兩個(gè)接觸器要互相聯(lián)鎖（包括電氣、機(jī)械兩種聯(lián)鎖）。性質(zhì)：用于船舶的各種壓載水艙、艏尖艙、艉尖艙、船底水艙等部位的涂料。這些水艙的腐蝕環(huán)境惡劣，長期處于海水壓載和空載的干濕交替狀態(tài)，環(huán)境濕熱，鹽分高又不通風(fēng)，要求涂料有優(yōu)良的耐水、耐鹽霧、耐干濕交替和抗腐蝕性能，同時(shí)要求其一次成膜有較高的膜厚，以保證長的使用壽命，一般5年后銹蝕面積小于5％。常采用厚膜型環(huán)氧瀝青、乙烯瀝青、氯化橡膠瀝青、異氰酸酯焦油環(huán)氧、無溶劑環(huán)氧瀝青涂料等。佛山壓送泵生產(chǎn)工藝務(wù)必具備的條件就是泵腔有密封容積變化。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="全新壓送泵質(zhì)量服務(wù),壓送泵" src="http://tyunfile.71360.com/UploadFile/qunxun/637215361656689453/7184883.jpg"></div><p style="text-indent:25px">(4)大功率無換向器電動(dòng)機(jī)拖動(dòng)系統(tǒng)。大功率無換向器電動(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> 單液壓送泵是為液壓傳動(dòng)提供加壓液體的一種液壓元件，是泵的一種。它的功能是把動(dòng)力機(jī)(如電動(dòng)機(jī)和內(nèi)燃機(jī)等)的機(jī)械能轉(zhuǎn)換成液體的壓力能。圖中為單柱塞泵的工作原理。凸輪由電動(dòng)機(jī)帶動(dòng)旋轉(zhuǎn)。當(dāng)凸輪推動(dòng)柱塞向上運(yùn)動(dòng)時(shí)，柱塞和缸體形成的密封體積減小，油液從密封體積中擠出，經(jīng)單向閥排到需要的地方去。當(dāng)凸輪旋轉(zhuǎn)至曲線的下降部位時(shí)，彈簧迫使柱塞向下，形成一定真空度，油箱中的油液在大氣壓力的作用下進(jìn)入密封容積。凸輪使柱塞不斷地升降，密封容積周期性地減小和增大，泵就不斷吸油和排油。單液壓送泵特點(diǎn)： </p> <p> 1、鋁合金制造、強(qiáng)度高、耐腐蝕、重量輕、適合各種環(huán)境下作業(yè)。 </p> <p> 2、雙速特性減少了打壓次數(shù)，在低壓室快速處于負(fù)載用功狀態(tài)，立刻轉(zhuǎn)換成高壓，縮短每次作業(yè)周期。 </p> <p> 3、配有壓力調(diào)節(jié)閥，可調(diào)節(jié)控制及設(shè)定工作壓力 </p> <p> <br /> 這個(gè)被控量可根據(jù)需要進(jìn)行J’I’環(huán)控制。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="全新壓送泵質(zhì)量服務(wù),壓送泵" src="https://tyunfile.71360.com/UploadFile/qunxun/637280886438339844/4328765.png"></div><p style="text-indent:25px">因?yàn)楸脤?duì)設(shè)備狀態(tài)的反應(yīng)非常敏感，所以泵也是反映設(shè)備狀態(tài)的一個(gè)指示器，例如滑環(huán)密封件的損壞和滑動(dòng)軸承無潤滑運(yùn)***蝕引起工作輪和機(jī)殼的損壞等。為了提高設(shè)備的可使用性，就必須了解設(shè)備狀態(tài)與泵體反應(yīng)之間的相互關(guān)系，這也是發(fā)展新的智能型循環(huán)泵狀態(tài)診斷和測(cè)定系統(tǒng)的基本前提和出發(fā)點(diǎn)，目的是要把這種邏輯關(guān)系轉(zhuǎn)化為對(duì)傳感元件的比較低配置。從服務(wù)機(jī)構(gòu)和使用者對(duì)故障統(tǒng)計(jì)數(shù)據(jù)的分析上可以看出，使用2～3個(gè)傳感元件就足以測(cè)定泵的運(yùn)行狀態(tài)，并在一定程度上對(duì)泵體進(jìn)行診斷。傳感元件的用途是：識(shí)別出泵處于無潤滑運(yùn)行狀態(tài)；識(shí)別出泵處于無潤滑運(yùn)行狀態(tài)；識(shí)別出泵處于無潤滑運(yùn)行狀態(tài)；對(duì)于使用這種設(shè)備的用戶來說，能夠以簡明的方式表述出泵體的工作狀態(tài)是極為重要的。所以，用一臺(tái)測(cè)量裝置測(cè)出一個(gè)數(shù)值，對(duì)每一個(gè)測(cè)量數(shù)值單獨(dú)進(jìn)行解釋，然后再把各測(cè)量數(shù)值進(jìn)行綜合的做法是不可行的。在這種情況下，用戶必須要在對(duì)數(shù)據(jù)進(jìn)行綜合的基礎(chǔ)上自己做出邏輯推理，得出結(jié)論。在實(shí)際工作的基礎(chǔ)上設(shè)定相應(yīng)的閾值預(yù)報(bào)警，這也是很重要的一個(gè)步驟。液壓泵的工作原理是運(yùn)動(dòng)帶來泵腔容積的變化。汕尾好壓送泵</p><p style="text-indent:25px">按液壓系統(tǒng)中常用的泵結(jié)構(gòu)分為：齒輪泵、葉片泵和柱塞泵3種。全新壓送泵質(zhì)量服務(wù)</p><p> <p> 單液壓送泵是為液壓傳動(dòng)提供加壓液體的一種液壓元件，是泵的一種。它的功能是把動(dòng)力機(jī)（如電動(dòng)機(jī)和內(nèi)燃機(jī)等）的機(jī)械能轉(zhuǎn)換成液體的壓力能。影響液壓泵的使用壽命因素很多，除了泵自身設(shè)計(jì)、制造因素外和一些與泵使用相關(guān)元（如聯(lián)軸器、濾油器等）的選用、試車運(yùn)行過程中的操作等也有關(guān)。 </p> <p> 液壓泵的工作原理是運(yùn)動(dòng)帶來泵腔容積的變化，從而壓縮流體使流體具有壓力能。 </p> <p> 務(wù)必具備的條件就是泵腔有密封容積變化。 </p> <p> <br /> </p> 單液壓送泵分類： </p> <p> 1、按流量是否可調(diào)節(jié)可分為：變量泵和定量泵。 </p> <p> 輸出流量可以根據(jù)需要來調(diào)節(jié)的稱為變量泵，流量不能調(diào)節(jié)的稱為定量泵。 </p> <p> <br /> 全新壓送泵質(zhì)量服務(wù)</p><p style="text-indent:25px">深圳市群勛科技有限公司始建于2010-11-11，坐落于光明新區(qū)公明街道民生路70號(hào)銘源商務(wù)大廈808室，現(xiàn)有員工5~10人余人。致力于創(chuàng)造***的產(chǎn)品與服務(wù)，以誠信、敬業(yè)、進(jìn)取為宗旨，以建群勛科技,V-ONE明星產(chǎn)品為目標(biāo)，努力打造成為同行業(yè)中具有影響力的企業(yè)。公司堅(jiān)持以客戶為中心、深圳市群勛科技有限公司經(jīng)營微電子智能產(chǎn)品的技術(shù)開發(fā)和銷售；自動(dòng)化點(diǎn)膠機(jī)、自動(dòng)化控制器、機(jī)械設(shè)備、電子產(chǎn)品、自動(dòng)化點(diǎn)膠設(shè)備及其配件的銷售；國內(nèi)貿(mào)易、貨物及技術(shù)進(jìn)出口。微電子智能化產(chǎn)品的生產(chǎn)。市場(chǎng)為導(dǎo)向，重信譽(yù)，保質(zhì)量，想客戶之所想，急用戶之所急，全力以赴滿足客戶的一切需要。自公司成立以來，一直秉承“以質(zhì)量求生存，以信譽(yù)求發(fā)展”的經(jīng)營理念，始終堅(jiān)持以客戶的需求和滿意為**，為客戶提供質(zhì)量的[ "視覺噴點(diǎn)膠機(jī)", "點(diǎn)膠閥", "壓力泵", "壓痕檢測(cè)機(jī)" ]，從而使公司不斷發(fā)展壯大。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/967957.html</p></div></div></div></div></div><div id="d7hiaco" class="page-right twoColRt"><div id="epk3bnp" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="nhebtvx" class="recomPic likePro"><a 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