亚洲国产精品二区久久_煤礦井下有毒有害氣體檢測儀-深圳市華誼環(huán)?？萍加邢薰?/title> <meta name="keywords" content="煤礦井下有毒有害氣體檢測儀甲烷氣體報警器一氧化碳氣體報警器硫化氫氣體報警器"> <meta name="description" content=""> <link rel="stylesheet" href="/template/1/372/css/animate.min.css"> <link rel="stylesheet" href="/template/1/372/css/reset.css"> <link rel="stylesheet" href="/template/1/372/css/head.css"> <link rel="stylesheet" href="/template/1/372/css/main.css"> <style> body { background: #f1f2f4; } .ny-fenl { display: none; } </style> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> </head> <body> <h1><a href="http://www.lsjimu.com/">国内精品久久久久久无码不卡,色综合伊人色综合网站,国内揄拍国内精品少妇国语,九九视频免费精品视频,国产男女爽爽爽免费视频</a></h1><div id="uywwu" class="pl_css_ganrao" style="display: none;"><wbr id="uywwu"><bdo id="uywwu"><object id="uywwu"></object></bdo></wbr><center id="uywwu"></center><tfoot id="uywwu"></tfoot><tfoot id="uywwu"></tfoot><cite id="uywwu"></cite><ul id="uywwu"></ul><tr id="uywwu"><kbd 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style="font-family:宋體">CO、H2S、CH4等烴類(lèi)化合物。近年來(lái)，我國煤礦多次發(fā)生井下事故，傷亡人數超過(guò)全部重大事故傷亡人數的一半。</span></span></p><p style="margin: 0 0 10px;text-indent: 0;background: rgb(255, 255, 255)"><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px">常見(jiàn)的井下瓦斯災害主要有三種不同的類(lèi)型：瓦斯爆炸、瓦斯突出和瓦斯燃燒。為避免煤礦事故的發(fā)生，井下氣體的檢測非常重要。</span></p><p style="margin: 0 0 10px;text-indent: 0;background: rgb(255, 255, 255)"><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px">一、</span><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px"><span style="font-family:宋體">煤礦事故中的</span><span style="font-family:宋體">CO氣體檢測</span></span></p><p style="margin-top: 0;margin-right: 0;margin-bottom: 10px;background: rgb(255, 255, 255)"><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px"> </span><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px"> </span><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px"><span style="font-family:宋體">煤礦發(fā)生火災或瓦斯、煤塵爆炸事故時(shí)，都會(huì )產(chǎn)生大量的一氧化碳。而且在煤礦井下，</span><span style="font-family:宋體">CO也是引起瓦斯爆炸的主要氣體之一?？梢?jiàn)無(wú)論是瓦斯爆炸產(chǎn)生的原因還是瓦斯爆炸過(guò)后的產(chǎn)物都和CO有關(guān)。</span></span></p><p style="margin-top: 0;margin-right: 0;margin-bottom: 10px;text-indent: 37px;background: rgb(255, 255, 255)"><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px">CO是一種無(wú)色、無(wú)味、無(wú)嗅、毒性極強的氣體，比重為0.967，幾乎不溶于水，在正常狀態(tài)下性質(zhì)不活潑，當與空氣混合達到12.5%-75%時(shí)遇火能爆炸。CO是一種有劇毒性的氣體，被人體吸入后會(huì )導致組織缺氧，抑制組織呼吸，危及人們的健康及安全。</span></p><p style="margin-top: 0;margin-right: 0;margin-bottom: 10px;text-indent: 37px;background: rgb(255, 255, 255)"><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px"><span style="font-family:宋體">《煤礦安全規程》規定在煤礦井下環(huán)境空氣中，</span><span style="font-family:宋體">CO最高容許濃度為0.0024%。另外，煤在低溫氧化階段產(chǎn)生CO，且CO的涌出量變化穩定，能客觀(guān)地反映煤炭的自燃基本規律，CO也是早期預測礦井火災的敏感指標。</span></span></p><p style="margin: 0 0 10px;text-indent: 37px;background: rgb(255, 255, 255)"><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px">HY-BJQ</span><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px">系列一氧化碳氣體檢測儀是</span><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px">華誼環(huán)保</span><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px"><span style="font-family:宋體">運用十多年技術(shù)經(jīng)驗，自主研發(fā)生產(chǎn)的一款功能強悍、外觀(guān)新穎、品質(zhì)卓越的工業(yè)級一氧化碳氣體檢測儀表；實(shí)時(shí)在線(xiàn)監測，超標自動(dòng)聲光報警，還可通過(guò)內置繼電器自動(dòng)聯(lián)動(dòng)設備，排除險情；并支持</span><span style="font-family:宋體">4-20mA電流信號或RS485數字信號遠傳，溫濕度功能選配；</span></span><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px">HY-BJQ</span><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px">系列一氧化碳氣體檢測儀采用</span><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px">華誼環(huán)保</span><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px"><span style="font-family:宋體">典型的家族式外觀(guān)設計</span><span style="font-family:宋體">, GB50493-2009《石油化工可燃氣體和有毒氣體檢測報警設計規范》研發(fā)生產(chǎn)，并取得相關(guān)的CPA型式批準證書(shū)、國家防爆證和第三方計量證書(shū)和專(zhuān)利證書(shū)；</span></span></p><p style="margin: 0 0 10px;text-indent: 0;background: rgb(255, 255, 255)"><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px"><span style="font-family:宋體">二、煤礦中甲烷</span><span style="font-family:宋體">CH4的檢測</span></span></p><p style="margin: 0 0 10px;text-indent: 37px;background: rgb(255, 255, 255)"><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px"><span style="font-family:宋體">煤礦事故中，瓦斯爆炸和瓦斯燃燒造成火災占很大比例，而且二者常常伴隨發(fā)生。發(fā)生瓦斯爆炸的主要原因是瓦斯在礦井中的聚集，瓦斯的主要成分是甲烷（</span><span style="font-family:宋體">CH4），約占83-89%，它是在成煤過(guò)程中形成并儲存于煤層中的氣體，是煤礦井下危害最大的氣體。</span></span></p><p style="margin: 0 0 10px;text-indent: 37px;background: rgb(255, 255, 255)"><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px"><span style="font-family:宋體">甲烷氣體無(wú)色、無(wú)味、無(wú)嗅，密度為</span><span style="font-family:宋體">0.7164kg/m3，它本身無(wú)毒，對人體的主要危害是超限時(shí)能引起人窒息死亡，但它具有易燃、易爆等特點(diǎn)，與空氣混合達到一定濃度后，遇高溫火源引起燃燒或爆炸，按體積計算，甲烷濃度在5.3-15.0%時(shí)具有爆炸性，甲烷氣體在礦井中的積累成為困擾煤礦安全生產(chǎn)的重大難題。</span></span></p><p style="margin: 0 0 10px;text-indent: 37px;background: rgb(255, 255, 255)"><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px"><span style="font-family:宋體">在我國煤礦安全事故中，瓦斯爆炸造成的傷亡占所有重大事故傷亡人數的</span><span style="font-family:宋體">50%以上，給國民經(jīng)濟、人民的生命安全造成巨大損害。</span></span></p><p style="margin: 0 0 10px;text-indent: 0;background: rgb(255, 255, 255)"><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px"><span style="font-family:宋體">《煤礦安全規程》規定用于井下甲烷氣體檢測的儀器以</span><span style="font-family:宋體">1%為警報限，由于甲烷氣體比較輕，在礦井下經(jīng)常聚集在頂棚附近或掘井工作面，這些地方又不適合安裝甲烷探測器，所以研究開(kāi)發(fā)遠距離探測儀器來(lái)實(shí)現對甲烷濃度的監測是非常必要的，通過(guò)實(shí)時(shí)監測甲烷濃度是消除或減少瓦斯爆炸的重要措施。</span></span></p><p style="margin: 0 0 10px;text-indent: 37px;background: rgb(255, 255, 255)"><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px">HY-BJQ</span><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px"><span style="font-family:宋體">系列甲烷氣體檢測儀采用工業(yè)級鋁合金防爆外殼，堅固耐用；</span><span style="font-family:宋體">2.</span></span><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px">2</span><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px">英寸超大屏幕，完美顯示目標氣體、濃度、單位、指示燈工作狀態(tài)等各項參數；中英文、繁體，操作界面，適合所有人群；強大聲光報警功能，三級報警點(diǎn)自由設置，當氣體濃度超標時(shí)，自動(dòng)發(fā)出</span><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px">9</span><span style="font-family: 宋體;letter-spacing: 0;font-size: 19px">5dB以上的報警聲響。同時(shí)支持一鍵消音；強大的數據存儲功能，客戶(hù)可通過(guò)有線(xiàn)或無(wú)線(xiàn)連接，將數據打印或導出；國外原裝進(jìn)口芯片，精度高、穩定性強、誤差率低；多種信號傳輸，兼容90%以上廠(chǎng)家的氣體報警控制器、PLC、DCS、DDC等上位機系統；全量程溫濕度補償，32位納米級微處理器+24位超高ADC采集芯片，確保產(chǎn)品在長(cháng)期運行過(guò)程中的數據穩定；</span></p><p><br/></p> </div> </div> </div> <div id="u6uu2wy" class="show-pro2"> <div id="uywyyww" class="box"> <div id="wywyw6w" 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