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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="veg2kmj" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637352710177763671/3225823.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="omogs7k" 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>差壓式超聲波液位計(jì)廠家直銷,位計(jì)</p><p><span>***更新：</span>2020-09-29 03:05:46</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="8h97das" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇中徽測控儀表有限公司</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="uaspmda" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="fyacz77" class="box"><p><p> 電子式液位開關(guān) </p> <p> 電子式液位開關(guān)工作電壓是DC5V-24V，通過內(nèi)置電子探頭對(duì)水位進(jìn)行檢測，再由芯片對(duì)檢測到的信號(hào)進(jìn)行處理，當(dāng)被測液體的液位到達(dá)動(dòng)作點(diǎn)時(shí)，輸出DC5V-24V，可以直接與PLC配合使用或者與控制板配合使用，從而實(shí)現(xiàn)對(duì)液位的控制。 </p> <p> 光電式液位開關(guān) </p> <p> 光電液位開關(guān)使用紅外線探測，差壓式超聲波液位計(jì)廠家直銷，利用光線的折射及反射原理，光線在兩種不同介質(zhì)的分界面將產(chǎn)生反射或折射現(xiàn)象。當(dāng)被測液體處于高位時(shí)則被測液體與光電開關(guān)形成一種分界面，當(dāng)被測液體處于低位時(shí)，則空氣與光電開關(guān)形成另一種分界面，這兩種分界面使光電開關(guān)內(nèi)部光接收晶體所接收的的反射光強(qiáng)度不同，即對(duì)應(yīng)兩種不同的開關(guān)狀態(tài)，差壓式超聲波液位計(jì)廠家直銷，差壓式超聲波液位計(jì)廠家直銷。磁翻板液位計(jì)所測得體積流量實(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；差壓式超聲波液位計(jì)廠家直銷</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="差壓式超聲波液位計(jì)廠家直銷,位計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637352710177763671/3225823.jpg"></div><p> 差壓式液位計(jì) </p> <p> 1 、工作原理 </p> <p> 差壓式液位汁是利用容器內(nèi)液位改變時(shí)，由液柱產(chǎn)生的靜壓也相應(yīng)變化的原理而工作的，如圖1所示。差壓變送器的一端接液相，另一端接氣相時(shí)根據(jù)流體靜力學(xué)原理，我們知道，變送器正壓室受到的壓力為：Pl=P氣十ρgH。式中H：液位高度;ρ：介質(zhì)密度;g：重力加速度;P氣：氣相壓力。圖1差壓變送器測量液位計(jì)示意圖差壓變送器負(fù)壓室壓力P2=P氣，則正負(fù)壓室的差壓為：ΔP=P1-P2。通常，被測介質(zhì)的密度是已知的。因此，測得差壓值就能知道液位高度。 </p> <p> 2、特點(diǎn)及適用場合 </p> <p> 2.1可做到高密封、防泄漏 </p> <p> 2.2高溫、高壓、高粘度、強(qiáng)腐蝕性條件下安全可靠地測量液位 </p> <p> 2.3全過程測量無盲區(qū)、顯示醒目，讀數(shù)直觀，并且測量范圍大配上液位報(bào)警、控制開關(guān)，可實(shí)現(xiàn)液位或界位的上下限報(bào)警和控制。安裝方便，容易實(shí)現(xiàn)遠(yuǎn)傳和自動(dòng)調(diào)節(jié)，工業(yè)上應(yīng)用較多。為比較成熟的液位測量儀表，測量精度較高，維護(hù)量少。單法蘭（單引壓線）液位計(jì)一般用于敞口或常壓容器，密閉帶壓設(shè)備應(yīng)選用雙法蘭（雙引壓線）液位計(jì)。揚(yáng)州高溫磁翻板液位計(jì)哪家比較好導(dǎo)波雷達(dá)液位計(jì)不受介電常數(shù)、溫度、壓力和密度的影響；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="差壓式超聲波液位計(jì)廠家直銷,位計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637352709972675781/8719660.jpg"></div><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，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，而電磁波的傳輸速度為常數(shù)，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)的液位測量。采用非接觸式測量，不受槽內(nèi)液體的密度、濃度等物理特性的影響。 </p> <p> 缺點(diǎn)：價(jià)格昂貴。儀表需要設(shè)置的參數(shù)較多，一旦出現(xiàn)問題，通常很難查出是什么原因造成的。如果天線本身不慎沾上介質(zhì)會(huì)報(bào)錯(cuò)。如有結(jié)晶結(jié)冰現(xiàn)象會(huì)報(bào)錯(cuò)，需加熱保溫處理，并清理天線。初安裝需要是空倉，即空料位。 </p><p> 液位開關(guān)，顧名思義，就是用來控制液位的開關(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關(guān),接觸式的例如:浮球式液位開關(guān)、電極式液位開關(guān)、電子式液位開關(guān)。電容式液位開關(guān)也可以采用接觸式方法實(shí)現(xiàn)。 </p> <p> 液位開關(guān)種類及原理 </p> <p> 浮球液位開關(guān) </p> <p> 浮球液位開關(guān)結(jié)構(gòu)主要基于浮力和靜磁場原理設(shè)計(jì)生產(chǎn)的。帶有磁體的浮球（簡稱浮球）在被測介質(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（磁簧開關(guān)）作用，產(chǎn)生開關(guān)信號(hào)。 </p> <p> 音叉液位開關(guān) </p> <p> 音叉液位開關(guān)的工作原理是通過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)音叉液位開關(guān)的音叉與被測介質(zhì)相接觸時(shí)，音叉的頻率和振幅將改變，音叉液位開關(guān)的這些變化由智能電路來進(jìn)行檢測，處理并將之轉(zhuǎn)換為一個(gè)開關(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關(guān)安裝到罐體的側(cè)面或者頂部。測量料位的儀表：重錘探測式、音叉式、超聲波式、激光式、放射性式等;</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="差壓式超聲波液位計(jì)廠家直銷,位計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637352709971181640/3552409.jpg"></div><p> 差壓式超聲波液位計(jì) </p> <p> 優(yōu)點(diǎn): 應(yīng)用多的孔板式超聲波液位計(jì)結(jié)構(gòu)牢固,性能穩(wěn)定可靠,使用壽命長; </p> <p> 應(yīng)用范圍,至今尚無任何一類超聲波液位計(jì)可與之相比擬; </p> <p> 檢測件與變送器、顯示儀表分別由不同廠家生產(chǎn),便于規(guī)模經(jīng)濟(jì)生產(chǎn)。 </p> <p> 缺點(diǎn): 測量精度普遍偏低; </p> <p> 范圍度窄,一般*3:1~4:1; </p> <p> 現(xiàn)場安裝條件要求高; </p> <p> 壓損大（指孔板、噴嘴等）。 </p> <p> 應(yīng)用概況: 差壓式超聲波液位計(jì)應(yīng)用范圍特別,在封閉管道的流量測量中各種對(duì)象都有應(yīng)用,如流體方面:單相、混相、潔凈、臟污、粘性流等;工作狀態(tài)方面:常壓、高壓、真空、常溫、高溫、低溫等;管徑方面:從幾mm到幾m;流動(dòng)條件方面:亞音速、音速、脈動(dòng)流等。它在各工業(yè)部門的用量約占超聲波液位計(jì)全部用量的1/4~1/3。磁翻板液位計(jì)不產(chǎn)生流量檢測所造成的壓力損失，節(jié)能效果好；揚(yáng)州高溫磁翻板液位計(jì)哪家比較好</p><p style="text-indent:25px">磁翻板液位計(jì)是一種現(xiàn)場實(shí)時(shí)指示型液位計(jì)，在各行各業(yè)的液位測量中都有大量的應(yīng)用。差壓式超聲波液位計(jì)廠家直銷</p><p> 浮筒液位（界面）計(jì) </p> <p> 工作原理：浮筒液位計(jì)是根據(jù)阿基米德定律和磁耦合原理設(shè)計(jì)而成的液位測量儀表，儀表可用來測量液位、界位和密度，負(fù)責(zé)上下限報(bào)警信號(hào)輸出。**于測量壓力容器內(nèi)液位，同四個(gè)基本部分組成：浮筒、彈簧、磁鋼室和指示器。 </p> <p> 應(yīng)用范圍：用于石油、化工、冶金、電力、醫(yī)藥、食品、造紙等行業(yè)液體的測量與過程控制。 </p> <p> 使用限制：一般的液態(tài)介質(zhì)都是可以測量的，但局限于小量程，大量程的浮筒液位計(jì)運(yùn)輸、安裝非常不方便，其他的費(fèi)用非常高，所以特別大量程的現(xiàn)場不建議使用浮筒液位計(jì)，超過5M基本上就沒有人做了 </p> <p> 精度等級(jí)：±0.5%FS </p> <p> 優(yōu)點(diǎn)：測量精度高； </p> <p> 智能化：利用HART通訊協(xié)議的該儀表使用戶容易存取過程操作的信息； </p> <p> 高靈敏：能反應(yīng)過程的小變化： </p> <p> 扭力管采用優(yōu)化的熱處理工藝，具有優(yōu)良的溫度和時(shí)間穩(wěn)定性； </p> <p> 結(jié)構(gòu)堅(jiān)固，耐腐蝕 </p> <p> 應(yīng)用面廣，適用性強(qiáng)。 </p> <p> 缺點(diǎn)：安裝，運(yùn)輸不方便，如果液罐過高則不適用。差壓式超聲波液位計(jì)廠家直銷</p><p style="text-indent:25px">江蘇中徽測控儀表有限公司致力于儀器儀表，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。公司自創(chuàng)立以來，投身于雷達(dá)料位計(jì)，雷達(dá)液位計(jì)，物位計(jì)，水位計(jì)，是儀器儀表的主力軍。江蘇中徽測控儀表致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對(duì)用戶產(chǎn)品上的貼心，為用戶帶來良好體驗(yàn)。江蘇中徽測控儀表始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使江蘇中徽測控儀表在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1462959.html</p></div></div></div></div></div><div id="ivczbi3" class="page-right twoColRt"><div id="ktaxu8r" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="nx7l2j4" 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" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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