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src="https://tyunfile.71360.com/UploadFile/shyouwei/637393252697225128/4591127.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="hvmj9f7" 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>高精度機(jī)械式壓力開(kāi)關(guān),電子</p><p><span>***更新：</span>2021-01-02 12:21:31</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="gkmtny4" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海油威液壓成套設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>楊海</p><p><span>郵箱: </span>69800595@qq.com</p><p><span>電話: </span>15821141338</p><p><span>傳真: </span>021_33656072</p><p><span>網(wǎng)址: </span>http://koto-sh.com.cn</p><p><span>手機(jī): </span>021-33656071</p><p><span>地址: </span>金海公路3265號(hào)18幢7層</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="38umbmg" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="z8ipbdd" class="box"><p><p style="text-indent:25px">電子開(kāi)關(guān)的關(guān)鍵技術(shù)：模型識(shí)別技術(shù)，油泵入口壓力較低時(shí)會(huì)對(duì)葉輪產(chǎn)生氣蝕造成輸油泵的損壞，因此輸油站設(shè)置有壓力調(diào)節(jié)系統(tǒng)并在進(jìn)站及泵入口安裝了壓力開(kāi)關(guān)，當(dāng)進(jìn)站壓力較低時(shí)調(diào)節(jié)系統(tǒng)首先進(jìn)行調(diào)節(jié)，當(dāng)自動(dòng)調(diào)節(jié)系統(tǒng)調(diào)節(jié)后進(jìn)站壓力若繼續(xù)下降，達(dá)到壓力開(kāi)關(guān)動(dòng)作值時(shí)就會(huì)進(jìn)行甩泵從而達(dá)到保護(hù)輸油泵的目的。但實(shí)際運(yùn)行情況表明當(dāng)發(fā)生異常情況時(shí)，由于自動(dòng)調(diào)節(jié)系統(tǒng)存在滯后，未等自動(dòng)調(diào)節(jié)系統(tǒng)發(fā)揮作用壓力開(kāi)關(guān)就產(chǎn)生動(dòng)作造成甩泵。突然甩泵給輸油設(shè)備造成的危害比短時(shí)間泵入口壓力**造成的危害還要大，高精度機(jī)械式壓力開(kāi)關(guān)。合理的選擇是依據(jù)泵站實(shí)際情況建立泵入口壓力允許模型，壓力開(kāi)關(guān)依據(jù)該模型進(jìn)行識(shí)別，高精度機(jī)械式壓力開(kāi)關(guān)，決定是否甩泵，高精度機(jī)械式壓力開(kāi)關(guān)。為了避免損害電子壓力開(kāi)關(guān)的器件，要在說(shuō)明書(shū)范圍內(nèi)才能夠正常使用。高精度機(jī)械式壓力開(kāi)關(guān)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="高精度機(jī)械式壓力開(kāi)關(guān),電子" src="https://tyunfile.71360.com/UploadFile/shyouwei/637393252697225128/4591127.png"></div><p style="text-indent:25px">電子渦流流量計(jì)的結(jié)構(gòu)：電子渦流流量計(jì)的基本結(jié)構(gòu)，流量脊由外殼、渦流發(fā)生器和頻率檢測(cè)元件等組成。渦流發(fā)生器的下端沿樅向自由支撐，上端固定在外殼的孔內(nèi)，通過(guò)密封圈再用壓板予以固定。在渦流發(fā)生器的內(nèi)部裝有壓電元件，用來(lái)通過(guò)體內(nèi)的應(yīng)力變化檢測(cè)出渦流的頻率。渦流發(fā)生器與流體接觸部分的截面為梯形，這種形狀能使流速與渦流的頻率具有良好的線性。當(dāng)渦流發(fā)生時(shí)，其內(nèi)部將產(chǎn)生一定的應(yīng)力，這種應(yīng)力經(jīng)壓電元件檢測(cè)后，用電路對(duì)得到的信號(hào)進(jìn)行處理，從而得到跟渦流頻率對(duì)應(yīng)的脈沖頻率，較終以模擬電壓的形式輸出。電子渦流頻率的檢測(cè)方法有許多種，可利用加熱體的冷卻方法來(lái)檢測(cè)渦流非生產(chǎn)性器周圍和內(nèi)部流體流動(dòng)的周期變化，也可以通過(guò)個(gè)種傳感器檢測(cè)流體振動(dòng)所產(chǎn)生的力的周期變化。浙江數(shù)顯電子壓力開(kāi)關(guān)維修當(dāng)電子壓力開(kāi)關(guān)用于過(guò)壓場(chǎng)合時(shí)，敏感元件將會(huì)產(chǎn)生持續(xù)形變。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="高精度機(jī)械式壓力開(kāi)關(guān),電子" src="https://tyunfile.71360.com/UploadFile/shyouwei/637393252613172295/4904474.png"></div><p style="text-indent:25px">電子壓力開(kāi)關(guān)采用高精度、高穩(wěn)定性能的壓力傳感器和變送電路，再經(jīng)** CPU 模塊化信號(hào)處理技術(shù)，實(shí)現(xiàn)對(duì)介質(zhì)壓力信號(hào)的檢測(cè)、顯示、報(bào)警和控制信號(hào)輸出。該表可以普遍用于石油、化工、冶金、電力、供水等領(lǐng)域中對(duì)各種氣體、液體的表壓、絕壓的測(cè)量控制，是工業(yè)現(xiàn)場(chǎng)理想的智能化測(cè)控儀表。電子壓力開(kāi)關(guān)是以高性能電子元器件為基礎(chǔ)，以進(jìn)口高精度壓力敏感元件為測(cè)量元件，采用先進(jìn)的數(shù)字電路把壓力敏感元伯感應(yīng)的電力信號(hào)轉(zhuǎn)換成開(kāi)關(guān)信號(hào)，具有準(zhǔn)確度高、體積小、易操作、使用和安裝等優(yōu)點(diǎn)，普遍應(yīng)用于化工、機(jī)械、水文、電力等系統(tǒng)的壓力控制和自動(dòng)化過(guò)程控制系統(tǒng)中。</p><p style="text-indent:25px">電子壓力開(kāi)關(guān)的組成：①壓力傳感器件采用單晶硅智能壓力傳感器。該傳感器具有高精度（±0.075%）、高穩(wěn)定性（優(yōu)于0.1%fs／年）、抗高過(guò)壓和高靜壓（耐壓16 mpa）、量程遷移比大（20∶1）等特點(diǎn)。選用單晶硅智能壓力傳感器作為傳感部件，使智能電子壓力開(kāi)關(guān)的控制精度及可靠性有了保證。②信號(hào)調(diào)理部分采用集成運(yùn)放及電子元件組成，它對(duì)壓力傳感器信號(hào)進(jìn)行調(diào)理，變成微電腦能接受的信號(hào)，送給微電腦。③微電腦采用低功耗嵌入式單片機(jī)c8051f007，該單片機(jī)具有供電電壓低（2.7～3.6 v）、功耗低（可低于1 ma）、體積?。? mm×8 mm）、功能強(qiáng)等特點(diǎn)。單片機(jī)具有12bit adc,35 6bram,32kflash mcu。微電腦將采集到的壓力信號(hào)進(jìn)行分析、處理、記憶，消除干擾及壓力波動(dòng)，發(fā)出正確的壓力開(kāi)關(guān)狀態(tài)信號(hào)。電子壓力開(kāi)關(guān)的靈敏度也是比較高的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="高精度機(jī)械式壓力開(kāi)關(guān),電子" src="https://tyunfile.71360.com/UploadFile/shyouwei/637393252682654872/3180402.png"></div><p style="text-indent:25px">電子渦流流量傳感器功能特性：目前可以根據(jù)水流量的大小設(shè)計(jì)擋板，減少水流通過(guò)流量傳感器產(chǎn)生的水阻力，減少水系統(tǒng)壓頭損失，但由于擋板式長(zhǎng)期受水流的沖擊仍然有疲勞的問(wèn)題，即使在工廠標(biāo)定好流量值的也會(huì)發(fā)生設(shè)定點(diǎn)飄移。通常在保護(hù)流量值不要求精確的地方使用，即用于水管內(nèi)的水流突然中斷的斷流保護(hù)。在國(guó)內(nèi)針對(duì)水源熱泵機(jī)組設(shè)計(jì)的非常少。擋板式是專門(mén)針對(duì)水環(huán)/地源熱泵空調(diào)機(jī)組的水流量監(jiān)控而開(kāi)發(fā)的，它針對(duì)不同的管徑配有不同的擋片，每種擋片的水阻不超過(guò)0.5米水柱，相比靶式水阻已很大降低。電子壓力開(kāi)關(guān)尤其用于液壓缸的壓力測(cè)試中，并可以通過(guò)各個(gè)開(kāi)關(guān)點(diǎn)調(diào)節(jié)不同的負(fù)載測(cè)試。浙江數(shù)顯電子壓力開(kāi)關(guān)維修</p><p style="text-indent:25px">電子壓力開(kāi)關(guān)一定要嚴(yán)格安裝范圍制定的數(shù)據(jù)來(lái)操作。高精度機(jī)械式壓力開(kāi)關(guān)</p><p style="text-indent:25px">目前使用的壓力開(kāi)關(guān)存在如下問(wèn)題：（1）工作不可靠在對(duì)進(jìn)站壓力開(kāi)關(guān)進(jìn)行校驗(yàn)時(shí)多次發(fā)現(xiàn)，當(dāng)給定壓力低于設(shè)定壓力時(shí)，壓力開(kāi)關(guān)仍不動(dòng)作，當(dāng)用物體敲擊時(shí)又恢復(fù)正常。（2）誤動(dòng)作用戶反應(yīng)曾多次發(fā)生當(dāng)管線內(nèi)壓力產(chǎn)生輕微波動(dòng)時(shí)造成甩泵。致使某些壓力開(kāi)關(guān)長(zhǎng)期不能投用，使輸油泵失去應(yīng)有的保護(hù)，帶來(lái)不安全因素。（3）精度低、校準(zhǔn)難在校驗(yàn)時(shí)需反復(fù)進(jìn)行試驗(yàn)才能確定設(shè)定值。（4）密閉流程解除后由于進(jìn)站壓力較低，使壓力開(kāi)關(guān)無(wú)法使用。為解決現(xiàn)有壓力開(kāi)關(guān)存在的這些問(wèn)題，研制高可靠性、高精度和智能電子壓力開(kāi)關(guān)十分必要。高精度機(jī)械式壓力開(kāi)關(guān)</p><p style="text-indent:25px">上海油威液壓成套設(shè)備有限公司是一家廠家源頭，專業(yè)的液壓油缸，液壓缸，油缸，液壓系統(tǒng)的的生產(chǎn)廠家。銷售液壓系統(tǒng)，液壓泵站，液壓油缸，液壓元件。液壓系統(tǒng)提供配套咨詢，設(shè)計(jì)方案?？纱庸?。非標(biāo)訂制，來(lái)電咨詢。成熟的液壓元件經(jīng)銷商，各品牌可來(lái)電預(yù)定，咨詢。的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠(chéng)實(shí)可信的企業(yè)。公司自創(chuàng)立以來(lái)，投身于液壓系統(tǒng)，液壓元件，液壓油缸，是機(jī)械及行業(yè)設(shè)備的主力軍。上海油威液壓不斷開(kāi)拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺(tái)，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。上海油威液壓創(chuàng)始人楊海，始終關(guān)注客戶，創(chuàng)新科技，竭誠(chéng)為客戶提供良好的服務(wù)。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2673786.html</p></div></div></div></div></div><div id="mahdabv" class="page-right twoColRt"><div id="qagdvx3" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="7rar32j" 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" 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