微機全自(zi)動量熱儀的結構和工作原理

量(liang)(liang)熱(re)系統(tong)(tong)由計算機(ji)(ji)，打印機(ji)(ji)，氧(yang)(yang)彈、內(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)、外筒(tong)(tong)(tong)(tong)(tong)、溫(wen)度(du)傳(chuan)感器(qi)、攪(jiao)拌器(qi)、點(dian)(dian)火(huo)裝(zhuang)置、溫(wen)度(du)測(ce)量(liang)(liang)和(he)(he)控(kong)(kong)制(zhi)系統(tong)(tong)以及(ji)水(shui)(shui)(shui)構成。微機(ji)(ji)全(quan)自動(dong)量(liang)(liang)熱(re)儀(yi)的(de)(de)(de)(de)主機(ji)(ji)一(yi)般由機(ji)(ji)殼、外筒(tong)(tong)(tong)(tong)(tong)、內(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)、備用水(shui)(shui)(shui)箱（或定(ding)(ding)(ding)容器(qi)）、攪(jiao)拌器(qi)、溫(wen)度(du)傳(chuan)感器(qi)、點(dian)(dian)火(huo)電(dian)極、水(shui)(shui)(shui)循環(huan)(huan)系統(tong)(tong)、控(kong)(kong)制(zhi)電(dian)路等組成。 有(you)些微機(ji)(ji)全(quan)自動(dong)量(liang)(liang)熱(re)儀(yi)還有(you)外筒(tong)(tong)(tong)(tong)(tong)水(shui)(shui)(shui)溫(wen)地節(jie)系統(tong)(tong)和(he)(he)外筒(tong)(tong)(tong)(tong)(tong)子(zi)溫(wen)度(du)控(kong)(kong)制(zhi)系統(tong)(tong)，可以保(bao)持(chi)外筒(tong)(tong)(tong)(tong)(tong)子(zi)水(shui)(shui)(shui)溫(wen)和(he)(he)整(zheng)個量(liang)(liang)熱(re)儀(yi)體系溫(wen)度(du)保(bao)持(chi)在一(yi)個很小的(de)(de)(de)(de)范圍(wei)內(nei)(nei)(nei)波(bo)動(dong)，為(wei)整(zheng)個量(liang)(liang)熱(re)體系創造(zao)一(yi)個相(xiang)對(dui)穩(wen)(wen)定(ding)(ding)(ding)的(de)(de)(de)(de)測(ce)量(liang)(liang)環(huan)(huan)境。 微機(ji)(ji)全(quan)自動(dong)量(liang)(liang)熱(re)儀(yi)的(de)(de)(de)(de)工作(zuo)原理 目前國(guo)產量(liang)(liang)熱(re)儀(yi)多(duo)為(wei)恒溫(wen)式。其工作(zuo)原理一(yi)般配是將裝(zhuang)好煤樣并充氧(yang)(yang)至規定(ding)(ding)(ding)壓力的(de)(de)(de)(de)氧(yang)(yang)彈放(fang)入內(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)子(zi)系統(tong)(tong)開(kai)始進行(xing)水(shui)(shui)(shui)循環(huan)(huan)，穩(wen)(wen)定(ding)(ding)(ding)水(shui)(shui)(shui)溫(wen)，然(ran)后(hou)(hou)向內(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)子(zi)注水(shui)(shui)(shui)，達(da)到預(yu)定(ding)(ding)(ding)水(shui)(shui)(shui)量(liang)(liang)后(hou)(hou)，開(kai)始攪(jiao)拌，使內(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)水(shui)(shui)(shui)溫(wen)均(jun)衡至室溫(wen)（相(xiang)差不超過1. 5℃），此(ci)時感溫(wen)控(kong)(kong)頭測(ce)定(ding)(ding)(ding)水(shui)(shui)(shui)溫(wen)并記錄到計算機(ji)(ji)中。當內(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)子(zi)水(shui)(shui)(shui)溫(wen)基本穩(wen)(wen)定(ding)(ding)(ding)后(hou)(hou)，控(kong)(kong)制(zhi)系統(tong)(tong)指示點(dian)(dian)火(huo)電(dian)路導通，點(dian)(dian)火(huo)后(hou)(hou)，樣品在氧(yang)(yang)氣的(de)(de)(de)(de)助燃下迅速燃燒，產生的(de)(de)(de)(de)熱(re)量(liang)(liang)通過氧(yang)(yang)彈傳(chuan)遞(di)給(gei)內(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)，引起內(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)水(shui)(shui)(shui)溫(wen)上升。當氧(yang)(yang)彈內(nei)(nei)(nei)所(suo)有(you)的(de)(de)(de)(de)熱(re)量(liang)(liang)釋放(fang)出以后(hou)(hou)溫(wen)度(du)開(kai)始下降，計算機(ji)(ji)檢測(ce)到內(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)水(shui)(shui)(shui)溫(wen)下降信號后(hou)(hou)判定(ding)(ding)(ding)該產供銷(xiao)試驗結束，系統(tong)(tong)停止攪(jiao)拌并放(fang)出內(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)水(shui)(shui)(shui)。計算機(ji)(ji)對(dui)采集(ji)到的(de)(de)(de)(de)溫(wen)度(du)數據進行(xing)結果處理