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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="clikm4s" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289204346373/8482943.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ftq383y" 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>江西電磁流量計(jì)供貨商,流量計(jì)</p><p><span>***更新：</span>2021-01-21 00:17:48</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="ir8lsrd" 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="2jqnptf" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="x7g2pbx" class="box"><p><p> 孔板流量計(jì)管道安裝條件如下：（1）節(jié)流件前后的直管段必須是直的，不得有肉眼可見(jiàn)的彎曲。(2)用于安裝節(jié)流孔的直段必須平滑，如果不平滑，必須對(duì)流量系數(shù)應(yīng)用粗糙度來(lái)修正稀疏。(3)流體的流動(dòng)是為了在節(jié)流孔的前1d形成充分發(fā)達(dá)的紊流速度分布，使該分布成為均勻的軸對(duì)稱(chēng)形1）直管段必須是圓的，而且對(duì)節(jié)流件前2D范圍，其圓度要求其甚為嚴(yán)格，江西電磁流量計(jì)供貨商，并且有一定的圓度指標(biāo)。具體衡量方法：(a)在節(jié)流孔前od、d/2、d，江西電磁流量計(jì)供貨商、2d四個(gè)垂直管截面上，以較大的角度距離測(cè)定至少四個(gè)管內(nèi)徑的測(cè)定值，取平均值d。任意內(nèi)徑單測(cè)量值與平均值之差不得超過(guò)±（B）在節(jié)流件后，在OD和2D位置用上述方法測(cè)得8個(gè)內(nèi)徑單測(cè)值，任意單測(cè)值與D比較，江西電磁流量計(jì)供貨商，其*大偏差不得超過(guò)±2%2）節(jié)流件前后要求一段足夠長(zhǎng)的直管段，這段足夠長(zhǎng)的直管段和節(jié)流件前的局部阻力件形式有關(guān)和直徑比β有關(guān)。(4)節(jié)流孔上游側(cè)的第1電阻體和第2電阻體間的直管段的長(zhǎng)度可以取第2電阻體的形狀和β=。孔板流量計(jì)可測(cè)量管道中各種流體的流量，可測(cè)量的介質(zhì)有液體、氣體、蒸汽；江西電磁流量計(jì)供貨商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西電磁流量計(jì)供貨商,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289204346373/8482943.png"></div><p> 孔板流量計(jì)使流速增加，靜壓力低，于是在節(jié)流件前后便產(chǎn)生了壓力降，即壓差，介質(zhì)流動(dòng)的流量越大，在節(jié)流件前后產(chǎn)生的壓差就越大，所以孔板流量計(jì)可以通過(guò)測(cè)量壓差來(lái)衡量流體流量的大小。這種測(cè)量方法是以能量守衡定律和流動(dòng)連續(xù)性定律為基準(zhǔn)的?？装辶髁坑?jì)可測(cè)量管道中各種流體的流量，可測(cè)量的介質(zhì)有液體、氣體、蒸汽，被廣泛應(yīng)用于石油、化工、冶金、輕工、煤礦等工業(yè)部門(mén)。測(cè)量原理：充滿管道的流體，當(dāng)它們流經(jīng)管道內(nèi)的節(jié)流裝置時(shí)，流束將在節(jié)流裝置的節(jié)流件處形成局部收縮. </p> <p> <br /> </p> <p> <br /> 江西電磁流量計(jì)供貨商孔板流量計(jì)一體型孔板安裝更簡(jiǎn)單，無(wú)須引壓管，可直接接差壓變送器和壓力變送器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西電磁流量計(jì)供貨商,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289029668701/3265337.png"></div><p> 流體流經(jīng)管道內(nèi)的節(jié)流裝置，在節(jié)流件附近造成局部收縮，流速增加，在其上、下游兩側(cè)產(chǎn)生靜壓力差。在已知有關(guān)參數(shù)的條件下，根據(jù)流動(dòng)連續(xù)性原理和伯努利方程可以推導(dǎo)出差壓與流量之間的關(guān)系而求得流量?？装辶髁坑?jì)的節(jié)流裝置結(jié)構(gòu)簡(jiǎn)單，且牢固、性能穩(wěn)定可靠，使用期限長(zhǎng)，價(jià)格較低，是工業(yè)中常用到的流量測(cè)量?jī)x表，整個(gè)加工過(guò)程采用國(guó)際標(biāo)準(zhǔn)，并經(jīng)過(guò)嚴(yán)格的校驗(yàn)檢測(cè)，用戶在購(gòu)買(mǎi)后可放心使用。該流量計(jì)應(yīng)用領(lǐng)域比較，所有的單相流速都可以測(cè)量，一部分混相流也可以使用該產(chǎn)品孔板流量計(jì)可測(cè)量管道中各種流體的流量，可測(cè)量的介質(zhì)有液體、氣體、蒸汽，被應(yīng)用于石油、化工、冶金、輕工、煤礦等工業(yè)部門(mén)。測(cè)量原理：充滿管道的流體，當(dāng)它們流經(jīng)管道內(nèi)的節(jié)流裝置時(shí)，流束將在節(jié)流裝置的節(jié)流件處形成局部收縮孔板流量計(jì)前后產(chǎn)生一個(gè)靜壓力差,該壓力差與流量存在著一定的函數(shù)關(guān)系,流量越大,壓力差就越大.差壓信號(hào)傳送給差壓變送器。 </p><p style="text-indent:25px">渦街流量計(jì)的優(yōu)點(diǎn)：（1）構(gòu)造簡(jiǎn)略、結(jié)實(shí)、裝置保護(hù)便利。無(wú)需導(dǎo)壓管和三閥組等，削減走漏、阻塞和凍住等。（2）測(cè)量規(guī)模寬，合理斷定口徑，規(guī)模度可達(dá)20:1。（3）精度較高，通常為±（1～1.5）％R。（4）輸出與流量成正比的脈沖信號(hào)，無(wú)零點(diǎn)漂移。（5）壓損小，約為節(jié)流式差壓流量計(jì)的1/4～1/2。（6）在必定雷諾數(shù)規(guī)模內(nèi)，輸出頻率不受流體物性（密度、粘度）和組成的影響，即外表系數(shù)*與旋渦發(fā)作體及管道的形狀、尺度有關(guān)?？装辶髁坑?jì)的優(yōu)點(diǎn)：（1）適用規(guī)模。既適用于全部單相流體，也可測(cè)量有些混相流，如氣固、汽液、固液等。（2）節(jié)流式差壓流量計(jì)中的標(biāo)準(zhǔn)孔板構(gòu)造易于復(fù)制，簡(jiǎn)略結(jié)實(shí)，性能安穩(wěn)可靠，價(jià)格低廉。無(wú)需實(shí)流校準(zhǔn)就可使用，這在流量計(jì)中是罕見(jiàn)的。（3）對(duì)振蕩不活絡(luò)，抗干擾才能格外優(yōu)勝。（4）高溫高壓大口徑和小流量均適用。引壓管路內(nèi)必須始終保持單相流體狀態(tài)。被測(cè)流體是氣體時(shí)，引壓管路（包括差壓計(jì)的壓力腔）內(nèi)全部是氣相；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西電磁流量計(jì)供貨商,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436288996836659/3226440.png"></div><p style="text-indent:25px">孔板流量計(jì)管道安裝條件如下：（1）節(jié)流件前后的直管段必須是直的，不得有肉眼可見(jiàn)的彎曲。(2)用于安裝節(jié)流孔的直段必須平滑，如果不平滑，必須對(duì)流量系數(shù)應(yīng)用粗糙度來(lái)修正稀疏。(3)流體的流動(dòng)是為了在節(jié)流孔的前1d形成充分發(fā)達(dá)的紊流速度分布，使該分布成為均勻的軸對(duì)稱(chēng)形1）直管段必須是圓的，而且對(duì)節(jié)流件前2D范圍，其圓度要求其甚為嚴(yán)格，并且有一定的圓度指標(biāo)。具體衡量方法：(a)在節(jié)流孔前od、d/2、d、2d四個(gè)垂直管截面上，以較大的角度距離測(cè)定至少四個(gè)管內(nèi)徑的測(cè)定值，取平均值d。任意內(nèi)徑單測(cè)量值與平均值之差不得超過(guò)±0.3%（B）在節(jié)流件后，在OD和2D位置用上述方法測(cè)得8個(gè)內(nèi)徑單測(cè)值，任意單測(cè)值與D比較，其*大偏差不得超過(guò)±2%2）節(jié)流件前后要求一段足夠長(zhǎng)的直管段，這段足夠長(zhǎng)的直管段和節(jié)流件前的局部阻力件形式有關(guān)和直徑比β有關(guān)。(4)節(jié)流孔上游側(cè)的第1電阻體和第2電阻體間的直管段的長(zhǎng)度可以取第2電阻體的形狀和β=0.7(與實(shí)際的β值無(wú)關(guān))的值的1/2測(cè)量液體流量時(shí)引壓管水平段應(yīng)在同一水平面內(nèi)；福建長(zhǎng)頸噴嘴流量計(jì)銷(xiāo)售廠家</p><p style="text-indent:25px">因質(zhì)量流量計(jì)是依據(jù)科氏力原理工作的，為避免重力對(duì)計(jì)量精度的影響。江西電磁流量計(jì)供貨商</p><p style="text-indent:25px">充滿管道的流體，當(dāng)它們流經(jīng)管道內(nèi)的節(jié)流裝置時(shí)，流束將在節(jié)流裝置的節(jié)流件處形成局部收縮，從而使流速增加，靜壓力低，于是在節(jié)流件前后便產(chǎn)生了壓力降，即壓差，介質(zhì)流動(dòng)的流量越大，在節(jié)流件前后產(chǎn)生的壓差就越大，所以孔板流量計(jì)可以通過(guò)測(cè)量壓差來(lái)衡量流體流量的大小。這種測(cè)量方法是以能量守衡定律和流動(dòng)連續(xù)性定律為基準(zhǔn)的。智能節(jié)流裝置（孔板流量計(jì)）是集流量、溫度、壓力檢測(cè)功能于一體，并能進(jìn)行溫度、壓力自動(dòng)補(bǔ)償?shù)男乱淮髁坑?jì)，該孔板流量計(jì)采用先進(jìn)的微機(jī)技術(shù)與微功耗新技術(shù)，功能強(qiáng)，結(jié)構(gòu)緊湊，操作簡(jiǎn)單，使用方便。▲孔板流量計(jì)節(jié)流裝置結(jié)構(gòu)易于復(fù)制，簡(jiǎn)單、牢固，性能穩(wěn)定可靠，使用期限長(zhǎng)，價(jià)格低廉?！装逵?jì)算采用國(guó)際標(biāo)準(zhǔn)與加工▲孔板流量計(jì)應(yīng)用范圍廣，全部單相流皆可測(cè)量，部分混相流亦可應(yīng)用?！鴺?biāo)準(zhǔn)型節(jié)流裝置無(wú)須實(shí)流校準(zhǔn)，即可投用?！惑w型孔板流量計(jì)安裝更簡(jiǎn)單，無(wú)須引壓管，可直接接差壓變送器和壓力變送器。江西電磁流量計(jì)供貨商</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2933506.html</p></div></div></div></div></div><div id="jdo7gip" class="page-right twoColRt"><div id="koahyk7" class="box01 margin10 clearfix"><h3><a 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