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<div id="g0wa2gs2c" class="panel-bd"> <div id="g0wa2gs2c" class="news-detail news-aggregate-detail"> <div id="g0wa2gs2c" class="news-detail-title"> <h1>煙氣分析儀檢定規(guī)程</h1> <p> <span>瀏覽量：1000</span>  <span>發(fā)布時(shí)間：2021-12-21 10:45:57</span> </p> </div> <div id="g0wa2gs2c" class="news-detail-view"> <p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">煙氣分析儀主要應(yīng)用于測(cè)量煙氣中的二氧化硫、氮氧化物、一氧化碳等有害氣體及氧氣的濃度。傳感器可選擇性配置，測(cè)定一種或多種氣體。分析儀由氣路系統(tǒng)和電路系統(tǒng)兩部分組成。工作原理是抽氣泵將煙氣經(jīng)采樣管送至傳感器的氣室，傳感器的輸出電信號(hào)通過(guò)電子線路將模擬信號(hào)放大，轉(zhuǎn)換成被測(cè)氣體的濃度。</span></p><p style="text-align: center;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;"><img src="/Public/Uploads/image/20211221/1640054737812509.jpg" title="煙氣分析儀.jpg" alt="煙氣分析儀.jpg" width="544" height="395" style="width: 544px; height: 395px;" border="0" vspace="0"/></span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">本規(guī)程適用于煙氣分析儀(以下簡(jiǎn)稱分析儀)的初次檢定、后續(xù)檢定和使用中檢驗(yàn)</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">1、性能要求：</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">1.1示值誤差</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">示值誤差不超過(guò)*5%a</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">1.2重復(fù)性</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">重復(fù)性不大于2%。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">1.3響應(yīng)時(shí)間</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">響應(yīng)時(shí)間不大于90s.</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">1.4穩(wěn)定性</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">1小時(shí)內(nèi)示值變化不大于5%0</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">2、通用技術(shù)要求</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">2.1外觀及結(jié)構(gòu)要求</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">2.1.1分析儀的銘牌上應(yīng)標(biāo)有產(chǎn)品名稱、型號(hào)、出廠編號(hào)、制造日期、制造廠名、制</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">造計(jì)量器具許可證邁互二標(biāo)志及編號(hào)，并附有使用說(shuō)明書。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">2.1.2分析儀(包括采樣管)不應(yīng)有妨礙正常工作的機(jī)械損傷。各調(diào)節(jié)器轉(zhuǎn)動(dòng)靈活，</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">定位準(zhǔn)確。各固定件應(yīng)無(wú)松動(dòng)。通電后，數(shù)字顯示完整清晰。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">2.2zui大流量</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">調(diào)節(jié)流量計(jì)流量能夠達(dá)到使用說(shuō)明書規(guī)定的流量。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">2.3絕緣電阻</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">對(duì)交流供電電源分析儀，絕緣電阻不小于20MOa</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">5計(jì)It器具控制</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">計(jì)量器具控制包括:初次檢定、后續(xù)檢定和使用中檢驗(yàn)。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">3.1檢定條件</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">JJG968-2002</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">3.1.1檢定時(shí)環(huán)境條件</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">(1)溫度:15℃一3590a</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">(2)濕度:不大于85%RHo</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">(3)電源電壓:AC220(1士10%)Vo</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">4.1.2檢定用設(shè)備</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">(1)標(biāo)準(zhǔn)氣體:二氧化硫、一氧化氮、一氧化碳、氧氣標(biāo)準(zhǔn)物質(zhì)，其濃度的擴(kuò)展不</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">確定度應(yīng)不大于2%(k=3)o</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">(2)零點(diǎn)校準(zhǔn)氣:清潔空氣。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">(3)電子秒表:分度值O.Olso</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">(4)流量控制器:流量穩(wěn)定性優(yōu)于2%，流量范圍應(yīng)能滿足被檢儀器需要，并設(shè)有</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">放空的流量計(jì)。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">(5)絕緣電阻表:500V,10級(jí)。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">5.2檢定項(xiàng)目</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">序號(hào)檢定項(xiàng)目初次檢定后續(xù)檢定使用中檢驗(yàn)</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">1外觀及結(jié)構(gòu)要求</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">2zui大流量十</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">3示值誤差十</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">4重復(fù)性十</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">5響應(yīng)時(shí)間十</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">6穩(wěn)定性</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">7絕緣電阻十</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">注1:` ”為需要檢定項(xiàng)目，“一”為不需要檢定項(xiàng)目。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">注2:經(jīng)安裝及維修后對(duì)分析儀計(jì)量性能有重大影響時(shí)，其后續(xù)檢定須按初次檢定項(xiàng)目進(jìn)行。</span></p><p style="text-align: center;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;"><img src="/Public/Uploads/image/20211221/1640054628318421.jpg" title="1640054628318421.jpg" alt="煙氣350.jpg" width="435" height="359" style="width: 435px; height: 359px;"/></span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">5.3檢定方法</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">5.3.1外觀及結(jié)構(gòu)要求</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">用目視和手動(dòng)檢查。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">5.3.2zui大流量</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">將流量計(jì)與分析儀進(jìn)氣口連接，啟動(dòng)分析儀抽氣泵，調(diào)節(jié)流量計(jì)流量，觀察能否達(dá)</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">到使用說(shuō)明書規(guī)定的流量。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">5.3.3示值誤差</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">分析儀校準(zhǔn)零點(diǎn)后，分別通人約為滿量程20%,50%和80%的標(biāo)準(zhǔn)氣體，每種濃</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">度的氣體通人3次，讀取各穩(wěn)定示值。。按公式(1)分別計(jì)算出不同濃度測(cè)量值的示</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">JJG968-2002</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">值誤差△。。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">zla=導(dǎo)·100%(1)</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">式中:乙?！环N濃度示值誤差;</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">c—3次示值的算術(shù)平均值;</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">。5—標(biāo)準(zhǔn)氣體的濃度。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">取示值誤差乙。中的zui大值為分析儀的示值誤差檢定結(jié)果。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">5.3.4重復(fù)性</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">分析儀校準(zhǔn)零點(diǎn)后，分別通人約為滿量程80%的標(biāo)準(zhǔn)氣體，待示值穩(wěn)定后，得到</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">測(cè)量值。，然后回零，上述步驟重復(fù)6次，重復(fù)性以相對(duì)標(biāo)準(zhǔn)偏差、r表示，各參數(shù)的</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">s均可按公式(2)分別計(jì)算。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">、r=:一耳下x100%(2)</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">式中:，r—相對(duì)標(biāo)準(zhǔn)偏差;</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">C-6次測(cè)量的算術(shù)平均值;</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">c—第i次的測(cè)量值;</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">n-測(cè)量次數(shù)，n=6o</span></p><p style="text-align: center;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;"><img src="/Public/Uploads/image/20211221/1640054661324708.jpg" title="煙氣分析儀.jpg" alt="煙氣分析儀.jpg" width="444" height="600" border="0" vspace="0" style="width: 444px; height: 600px;"/></span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">5.3.5響應(yīng)時(shí)間</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">分析儀校準(zhǔn)零點(diǎn)后，首先通人約為滿量程80%的標(biāo)準(zhǔn)氣體，讀取儀器穩(wěn)定初值，然后通人清潔空氣，讓儀器回零后，再通人上述標(biāo)準(zhǔn)氣體，并同時(shí)用秒表記錄儀器達(dá)到穩(wěn)定初值90%的時(shí)間，重復(fù)上述步驟3次，取算術(shù)平均值為分析儀的響應(yīng)時(shí)間。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">5.3.6穩(wěn)定性</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">分析儀校準(zhǔn)零點(diǎn)后，通入約為量程80%的標(biāo)準(zhǔn)氣體，分別讀取穩(wěn)定示值。衛(wèi)，作為儀器的初始值。讓儀器連續(xù)運(yùn)行1h，每間隔15min通人一次標(biāo)準(zhǔn)氣體，同時(shí)讀取穩(wěn)定示</span><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">值。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">每種標(biāo)準(zhǔn)氣體讀取穩(wěn)定示值4次，取與初始值偏離zui大的值。。按公式(3)計(jì)算穩(wěn)定性8'。as二全三三旦x100%(3)式中:8s-穩(wěn)定性?！獌x器的初始值;c—與初始值偏離zui大的值。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">5.4檢定結(jié)果處理</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">經(jīng)檢定符合本規(guī)程要求的分析儀，發(fā)給檢定證書;不符合本規(guī)程要求的，發(fā)給檢定結(jié)果通知書，并注明不合格項(xiàng)目。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">5.5檢定周期</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">分析儀的檢定周期一般不超過(guò)1年。</span></p><p><br/></p> </div> </div> </div> </div> </div> <div id="g0wa2gs2c" 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