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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ouymdxl" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shjietan/637378662189335937/4113758.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="id3xlzc" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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)品關鍵詞：</span>浦東新區(qū)地下漏水檢測機構,漏水檢測</p><p><span>***更新：</span>2021-01-29 08:12:43</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="e8qnrqu" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海捷探管道工程有限公司</a></p><p><span>聯(lián)系人：</span>朱經(jīng)理</p><p><span>郵箱: </span>1259833528@qq.com</p><p><span>電話: </span>15821629180</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.jietangd.com</p><p><span>手機: </span>021-21629180</p><p><span>地址: </span>上海市靜安區(qū)普善路87號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="toh3bw3" class="page-proshow02"><p class="title">詳細說明</p><div id="silpoc0" class="box"><p><p style="text-indent:25px">漏點的精定位：在預定位的基礎上，浦東新區(qū)地下漏水檢測機構，沿著確定的管道走向以一定間距通過聲音及圖形來判斷漏點具**置。儀器性能：頻譜分析：該功能對當前噪聲進行頻域分析，顯示噪聲在各個頻段的相對幅度。該功能幫助檢漏人員確定漏水聲的頻譜分布，設置與之匹配的濾波頻率區(qū)間，實現(xiàn)大程度地濾除干擾噪聲的目的。雙通道橫向條柱狀顯示：該功能可以對比濾波前后噪聲的幅度。在頻譜分析功能的基礎上使用該功能，可以方便地看到濾波區(qū)間設置產(chǎn)生的濾波效果。漏水噪聲處理信號與環(huán)境噪聲信號的關系：漏水噪聲處理信號與環(huán)境噪聲信號強度對于測定漏點有較強的指示作用，當探頭遠離漏點時，兩者應該相關較大，當接近漏點時兩者相關會減小，浦東新區(qū)地下漏水檢測機構。漏水分布記錄（歷史記憶模式）：該功能可以將不同地點的濾波后的噪聲柱形圖放在一起顯示，形成一張直觀的漏水剖面圖，幫助檢漏人員準確判斷漏水位置。在這里要特別注意，噪聲有效值的大值和小值的意義是不同的。因為漏水發(fā)出的是持續(xù)穩(wěn)定的噪聲，而環(huán)境干擾噪聲是隨機信號，這種信號的特征就是：不連續(xù)、不穩(wěn)定。二者共同存于噪聲背景中。信號處理時，將一段時間內(nèi)的采樣信號有效值的大值和小值分別記錄，浦東新區(qū)地下漏水檢測機構。衛(wèi)生間管道漏水檢測：管道泄漏是指上下水管、地漏、衛(wèi)生間接頭損壞等缺陷引起的泄漏。浦東新區(qū)地下漏水檢測機構</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浦東新區(qū)地下漏水檢測機構,漏水檢測" src="https://tyunfile.71360.com/UploadFile/shjietan/637378662189335937/4113758.png"></div><p style="text-indent:25px">漏水檢測儀是一種小體積、輕質(zhì)量、易攜帶并且可以精確測量泄漏點位置的聽音儀。漏水檢測儀能高效測量泄漏點位置，具有漏水監(jiān)控、告警管理、報表管理、安全管理等功能。漏水檢測儀按功能不同可以分為：管道漏水檢測儀，手推式漏水檢測儀，智能數(shù)字式漏水檢測儀。用途:漏水檢測儀普遍應用于數(shù)據(jù)機房、金融、證券、圖書館、倉庫、實驗室等重要場所的漏液監(jiān)測。該儀器能在不挖開覆土的情況下,通過向地下供水管道充入5%氫氣和95%的氮氣的相對安全的示蹤氣體,在地面查找供水管道的漏水點。它是自來水行業(yè)不可缺少的專門檢測設備。根據(jù)國家建設部城市管網(wǎng)改造應推廣塑料管道的決定，采用此氫氣查漏水設備時，帶有漏點的供水管線段可以停止供水約兩個小時。浦東新區(qū)地下漏水檢測機構漏水檢測：路面聽音同時應輔助閥栓聽音及環(huán)境調(diào)查。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浦東新區(qū)地下漏水檢測機構,漏水檢測" src="https://tyunfile.71360.com/UploadFile/shjietan/637378662310351562/8739943.png"></div><p style="text-indent:25px">漏水檢測：1、音聽法。管線環(huán)境相對簡單的情況下，一般采用音聽法進行漏水點定位，音聽法也是應用較為普遍的漏水檢測方法。通過收集漏水點產(chǎn)生的音波進行精確定位。采用儀器：聽音棒、漏水探知機。優(yōu)點：儀器便捷，操作簡單，不受管徑、材質(zhì)、檢測時間限制。常用儀器有聽音棒、LA—60漏水探知機、富士音聽式漏水探測器。缺點：需要操作人員具有豐富的技術經(jīng)驗。2、相關儀探測法。相關檢漏法是當前較先進較有效的一種檢漏方法，特別適用于環(huán)境干擾噪聲大、管道埋設太深或不適宜用地面聽漏法的區(qū)域。用相關儀可快速準確地測出地下管道漏水點的精確位置。可以進行無自動的高精度的漏水檢測作業(yè)。常用儀器有MC7－A漏水噪聲相關儀。</p><p style="text-indent:25px">漏水檢測：閥栓音聽法。閥栓音聽法故名釋義就是使用機械聽音桿或電子聽音桿接觸閥門、消火栓或管道有暴露的地方，通過聽管道上的泄漏聲音信號來判斷管道上是否有泄漏。如果管道上存在“嗤嗤”的聲音，說明這一段管道上有泄漏。該方法只能判斷管道是否泄漏，不能判斷漏點的位置在什么地方。閥栓聽音法的特點：適合快速尋找管網(wǎng)的泄漏線索;對金屬管道效果好，非金屬管道基本聽不聲音；不受外界干擾信號的影響，原聲放大，放大倍數(shù)低；受閥門泄漏、閥門關閉不嚴影響，容易誤判；漏點定位需要豐富的經(jīng)驗，有時需要夜間工作;適合各種管道環(huán)境使用，如：閥井積水、插入泥土等.漏水檢測：排除異常干擾，確認是否屬于漏水異常。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浦東新區(qū)地下漏水檢測機構,漏水檢測" src="https://tyunfile.71360.com/UploadFile/shjietan/637378662269150390/1192961.png"></div><p style="text-indent:25px">漏水檢測指當供水管道發(fā)生泄漏時，水在壓力下溢出會產(chǎn)生一種噪音，這種噪音會沿管道向兩側傳播，或沿介質(zhì)傳播到地面，漏水檢測儀器就是通過拾取這種漏水的聲音，并轉換為電信號，經(jīng)過相應放大并作數(shù)字化濾波處理，來判斷漏水點的準確位置。這是漏水檢測傳統(tǒng)聲波檢測的方法。在直徑2m的區(qū)域內(nèi)，可以直接用聽漏管確定確切的位置。聽到的聲音是水管破裂后水流出的嘩嘩聲。閥栓聽音法閥栓跌間法是用聽漏棒或電子放大聽漏儀直接在管道暴露的點(如消火檢、閥門及暴露的管道等)聽測由漏水點產(chǎn)生的漏水聲,從而確定漏水管道,縮小漏水檢測范圍。金屬管道漏水聲頻率一般在300~2500Hz之間,而非金屬管道漏水聲頻率在100~700Hz之間。聽測點距漏水點位置越近,聽測到漏水聲越大;反之,越小。漏水檢測：聽取從漏水點傳播至管道構筑物的聲波，發(fā)現(xiàn)漏水異常。浦東新區(qū)地下漏水檢測機構</p><p style="text-indent:25px">漏水檢測管網(wǎng)環(huán)境調(diào)查：管道材質(zhì)。浦東新區(qū)地下漏水檢測機構</p><p style="text-indent:25px">漏水檢測傳感器漏水檢測傳感器漏水檢測傳感器是一款成本低廉的漏水檢測設備,它既可以和檢測線纜安裝使用，也可以和其它檢測探頭配套使用，通過其輸出的繼電器觸點信號，可與各種監(jiān)控系統(tǒng)相整合，實現(xiàn)遠程報警及遠程設備的控制。電路系統(tǒng)采用高靈敏的元器件，既能保證檢測時的高靈敏性，還能避免各種外界因素所造成的誤告警，還設計有獨特的防浪涌保護功能。模塊提供相互獨立的泄漏報警和故障報警繼電器，故障繼電器為常態(tài)通電模式。浦東新區(qū)地下漏水檢測機構</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3064184.html</p></div></div></div></div></div><div id="xnbkygu" class="page-right twoColRt"><div id="lib33ta" class="box01 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