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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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海雷達(dá)液位計(jì)批發(fā)價(jià)格,位計(jì)</p><p><span>***更新：</span>2021-01-26 08:09:08</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="durydf8" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇中徽測(cè)控儀表有限公司</a></p><p><span>聯(lián)系人：</span>姜經(jīng)理</p><p><span>郵箱: </span>jszhck@163.com</p><p><span>電話: </span>13770424300</p><p><span>傳真: </span>0517_86903470</p><p><span>網(wǎng)址: </span>http://www.jszhckyb.com</p><p><span>手機(jī): </span>0517-86900078</p><p><span>地址: </span>江蘇省淮安市金湖縣工業(yè)集中區(qū)A區(qū)3號(hào)</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="sgnfh3u" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="udad3gi" class="box"><p><p> 雷達(dá)液位計(jì)（導(dǎo)波雷達(dá)液位計(jì)） </p> <p> 工作原理：雷達(dá)液位計(jì)采用發(fā)射—反射—接收的工作模式。雷達(dá)液位計(jì)的天線發(fā)射出電磁波，這些波經(jīng)被測(cè)對(duì)象表面反射后，再被天線接收，電磁波從發(fā)射到接收的時(shí)間與到液面的距離成正比，上海雷達(dá)液位計(jì)批發(fā)價(jià)格，關(guān)系式如下：D=CT/2（D：雷達(dá)液位計(jì)到液面的距離C：光速T：電磁波運(yùn)行時(shí)間）雷達(dá)液位計(jì)記錄脈沖波經(jīng)歷的時(shí)間，上海雷達(dá)液位計(jì)批發(fā)價(jià)格，而電磁波的傳輸速度為常數(shù)，上海雷達(dá)液位計(jì)批發(fā)價(jià)格，則可算出液面到雷達(dá)天線的距離，從而知道液面的液位。 </p> <p> 優(yōu)點(diǎn)：不需要傳輸媒介，不受大氣、蒸氣、槽內(nèi)揮發(fā)霧影響的特點(diǎn)，能用于揮發(fā)介質(zhì)的液位測(cè)量。采用非接觸式測(cè)量，不受槽內(nèi)液體的密度、濃度等物理特性的影響。高溫磁翻板液位計(jì)適合在高溫高壓的液體里面進(jìn)行測(cè)量的，液位介質(zhì)比較高溫度可達(dá)450度。上海雷達(dá)液位計(jì)批發(fā)價(jià)格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海雷達(dá)液位計(jì)批發(fā)價(jià)格,位計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637412295865274080/6815090.png"></div><p> 浮球液位計(jì) </p> <p> 1、工作原理 </p> <p> 浮球液位計(jì)結(jié)構(gòu)主要是基于浮力和靜磁場(chǎng)原理設(shè)計(jì)生產(chǎn)的。帶有磁體的浮球在被測(cè)介質(zhì)中的位置受浮力作用影響，液位的變化導(dǎo)致磁性浮子位置的變化。浮球中的磁體和傳感器（磁簧開(kāi)關(guān)）作用，使串連入電路的元件（如定值電阻）的數(shù)量發(fā)生變化，進(jìn)而使儀表電路系統(tǒng)的電學(xué)量發(fā)生改變。也就是使磁性浮子位置的變化引起電學(xué)量的變化。通過(guò)測(cè)量電學(xué)量的變化來(lái)反映容器內(nèi)液位的情況。 </p> <p> 2、特點(diǎn)及適用場(chǎng)合 </p> <p> 2.1結(jié)構(gòu)簡(jiǎn)單、使用方便 </p> <p> 2.2性能穩(wěn)定、使用壽命長(zhǎng)、便于安裝維護(hù) 幾乎可以適用于各種工業(yè)自動(dòng)化過(guò)程控制中的液位測(cè)量和控制，可以運(yùn)用于石油加工、食品加工、化工、水處理、制藥、電力、造紙、冶金、船舶和鍋爐等領(lǐng)域中的液位測(cè)量、控制與檢測(cè)。上海雷達(dá)液位計(jì)批發(fā)價(jià)格電磁超聲波液位計(jì)應(yīng)用領(lǐng)域大量,大口徑儀表較多應(yīng)用于給排水工程;</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海雷達(dá)液位計(jì)批發(fā)價(jià)格,位計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637412296228359983/9537404.png"></div><p> 液位開(kāi)關(guān)，顧名思義，就是用來(lái)控制液位的開(kāi)關(guān)。從形式上主要分為接觸式和非接觸式。非接觸式的如電容式液位開(kāi)關(guān),接觸式的例如:浮球式液位開(kāi)關(guān)、電極式液位開(kāi)關(guān)、電子式液位開(kāi)關(guān)。電容式液位開(kāi)關(guān)也可以采用接觸式方法實(shí)現(xiàn)。 </p> <p> 液位開(kāi)關(guān)種類及原理 </p> <p> 浮球液位開(kāi)關(guān) </p> <p> 浮球液位開(kāi)關(guān)結(jié)構(gòu)主要基于浮力和靜磁場(chǎng)原理設(shè)計(jì)生產(chǎn)的。帶有磁體的浮球（簡(jiǎn)稱浮球）在被測(cè)介質(zhì)中的位置受浮力作用影響：液位的變化導(dǎo)致磁性浮子位置的變化。浮球中的磁體和傳感器（磁簧開(kāi)關(guān)）作用，產(chǎn)生開(kāi)關(guān)信號(hào)。 </p> <p> 音叉液位開(kāi)關(guān) </p> <p> 音叉液位開(kāi)關(guān)的工作原理是通過(guò)安裝在基座上的一對(duì)壓電晶體使音叉在一定共振頻率下振動(dòng)。當(dāng)音叉液位開(kāi)關(guān)的音叉與被測(cè)介質(zhì)相接觸時(shí)，音叉的頻率和振幅將改變，音叉液位開(kāi)關(guān)的這些變化由智能電路來(lái)進(jìn)行檢測(cè)，處理并將之轉(zhuǎn)換為一個(gè)開(kāi)關(guān)信號(hào)，達(dá)到液位報(bào)警或控制的目的。為了讓音叉伸到罐內(nèi)，通常使用法蘭或者帶螺紋的工藝接頭將音叉開(kāi)關(guān)安裝到罐體的側(cè)面或者頂部。 </p><p> 磁翻板液位計(jì)（磁浮子液位計(jì)） </p> <p> 工作原理：浮力原理和磁性耦合作用研制而成 </p> <p> 應(yīng)用范圍：高溫磁翻板液位計(jì)適合在高溫高壓的液體里面進(jìn)行測(cè)量的，液位介質(zhì)較高溫度可達(dá)450度。被廣泛應(yīng)用到石油化工、食品、環(huán)保冶金等行業(yè)中。由于介質(zhì)完全密封在液位計(jì)中，所以對(duì)于易燃、易爆、有毒、腐蝕的液體非常適用。 </p> <p> 使用限制：測(cè)量介質(zhì)無(wú)雜質(zhì)或者很少的雜質(zhì)；不粘稠，不結(jié)晶。 </p> <p> 精度等級(jí)：精度在±5.0mm－±10mm之間。 </p> <p> 優(yōu)點(diǎn)：1、測(cè)量通道是段光滑直管，不會(huì)阻塞，適用于測(cè)量含固體顆粒的液固二相液體，如紙漿、泥漿、污水等；2、不產(chǎn)生流量檢測(cè)所造成的壓力損失，節(jié)能效果好；3、所測(cè)得體積流量實(shí)際不不受液體密度、粘度、溫度、壓力和電導(dǎo)率變化的明顯影響；4、流量范圍大、口徑范圍寬；能夠快速、直觀地讀數(shù)；價(jià)格較低；可實(shí)現(xiàn) 遠(yuǎn)傳和調(diào)節(jié)；體積較小，容易實(shí)現(xiàn)遠(yuǎn)傳和調(diào)節(jié)；適用于具有腐蝕性和高壓介質(zhì)。 </p> <p> 缺點(diǎn)：精度較低，測(cè)量精度一般在±5.0mm－±10mm之間；安裝復(fù)雜；有一定量程限制；不能測(cè)量氣體、蒸汽和含有較大氣泡的液體；不能用于較高溫度；大量磁翻板液體計(jì)運(yùn)輸不方便，且安裝體積較大。 </p> <p> <br /> 磁翻板液位計(jì)體積較小，容易實(shí)現(xiàn)遠(yuǎn)傳和調(diào)節(jié)；適用于具有腐蝕性和高壓介質(zhì)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海雷達(dá)液位計(jì)批發(fā)價(jià)格,位計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637412296411182325/706284.png"></div><p> 導(dǎo)波雷達(dá)液位計(jì)與普通雷達(dá)液位計(jì)的比較普通雷達(dá)為非接觸式測(cè)量，導(dǎo)波雷達(dá)為接觸式測(cè)量，這樣就意味導(dǎo)波雷達(dá)更需考慮介質(zhì)的腐蝕性和粘附性，而且過(guò)長(zhǎng)的導(dǎo)波雷達(dá)安裝和維護(hù)更加困難。普通雷達(dá)可以互換使用，而導(dǎo)波雷達(dá)由于導(dǎo)波桿（纜）長(zhǎng)度根據(jù)原工況固定，一般不能互換使用，受此影響導(dǎo)波雷達(dá)的選型要比普通雷達(dá)麻煩。測(cè)量固體物料時(shí)，導(dǎo)波雷達(dá)還要考慮導(dǎo)波桿（纜）的受力情況，也是由于受力的原因一般用導(dǎo)波雷達(dá)的測(cè)量距離不會(huì)很長(zhǎng)，而普通雷達(dá)在30、40m的罐體上應(yīng)用比較常見(jiàn)，甚至可測(cè)到60m。另外一般的導(dǎo)波雷達(dá)還有底部探測(cè)功能，可以根據(jù)底部回波信號(hào)能測(cè)量值加以修正，使信號(hào)更為穩(wěn)定準(zhǔn)確。不過(guò)在一些特殊工況導(dǎo)波雷達(dá)有明顯的優(yōu)勢(shì)，如罐內(nèi)有攪拌，介質(zhì)波動(dòng)大，這樣的工況用底部固定的導(dǎo)波雷達(dá)測(cè)量值要比變通雷達(dá)穩(wěn)定；還有小罐體內(nèi)的物位測(cè)量，由于安裝測(cè)量空間小（或罐內(nèi)干擾物較多），一般普通雷達(dá)不適用，這時(shí)導(dǎo)波雷達(dá)的優(yōu)勢(shì)就顯現(xiàn)出來(lái)了；再有是低介電常數(shù)的工況，無(wú)論雷達(dá)還是導(dǎo)波雷達(dá)測(cè)量原理都是基于介質(zhì)介電常數(shù)差別，由于普通雷達(dá)的發(fā)射的波是發(fā)散的，當(dāng)介質(zhì)介電常數(shù)過(guò)低時(shí)，信號(hào)太弱測(cè)量不穩(wěn)定，而導(dǎo)波雷達(dá)波是沿導(dǎo)波桿傳播信號(hào)相對(duì)穩(wěn)定。磁翻板液位計(jì)的兼容性高，一直以來(lái)在工業(yè)生產(chǎn)中都得到了大量的應(yīng)用，是槽、罐等容器液位測(cè)量中的理想之選。上海雷達(dá)液位計(jì)批發(fā)價(jià)格</p><p style="text-indent:25px">磁翻板液位計(jì)與超聲波液位計(jì)比較大的區(qū)別就是接觸式測(cè)量和非接觸式測(cè)量。上海雷達(dá)液位計(jì)批發(fā)價(jià)格</p><p> 磁翻板液位計(jì)的結(jié)構(gòu) </p> <p> 磁翻板液位計(jì)的結(jié)構(gòu)由浮筒（主導(dǎo)管）、磁浮子、磁翻板（磁翻柱）、指示器、排污閥、連接法蘭等組成。如下圖所示： </p> <p> 磁翻板液位計(jì)結(jié)構(gòu)圖 </p> <p> ①指示器；②磁浮子；③浮筒；④連接法蘭；⑤排污閥 </p> <p> 磁翻板液位計(jì)的特點(diǎn) </p> <p> 磁翻板液位計(jì)簡(jiǎn)便易用，具有以下突出特點(diǎn)和優(yōu)點(diǎn)： </p> <p> 1、以浮子為感測(cè)元件，利用磁鋼驅(qū)動(dòng)翻片指示，因此無(wú)需能源輔助; </p> <p> 2、通過(guò)高密封、防泄漏等技術(shù)措施，磁翻板液位即使在低溫、高溫、高壓、強(qiáng)腐蝕等各種惡劣的環(huán)境下，也能安全可靠工作; </p> <p> 3、因?yàn)榇欧逡何挥?jì)的兼容性高，所以一直以來(lái)在工業(yè)生產(chǎn)中都得到了的應(yīng)用，是槽、罐等容器液位測(cè)量中的理想之選。 </p> <p> 但由于現(xiàn)場(chǎng)工況復(fù)雜，在實(shí)際測(cè)量中，要求有不同型號(hào)的磁翻板液位計(jì)與之相適應(yīng)。目前，磁翻板液位計(jì)按不同的標(biāo)準(zhǔn)可以分為不同的類型，如標(biāo)準(zhǔn)型、經(jīng)濟(jì)型、塑料型、內(nèi)襯型、防爆型、保溫型等等。上海雷達(dá)液位計(jì)批發(fā)價(jià)格</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3017099.html</p></div></div></div></div></div><div id="xmjq328" class="page-right twoColRt"><div id="uiuwvmj" 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