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href="/">首页</a> > <a href="/news/">新闻信æ¯</a> > 详细内容</div> <div class="infonn"> <div class="titlep"> <h1>煤质化验讑֤‡åº”用煤炭å‘热é‡?/h1></div> <div class="time"> <p> å‘布旉™—´åQ?021-06-24 æ¥æºåQ?a href='http://www.7938945.com/news/150.html'>http://www.7938945.com/news/150.html</a></p> </div> <div class="infop"> <p style="text-indent:2em;"> <a href="http://www.7938945.com" target="_blank">煤质化验讑֤‡</a>应用煤炭å‘热é‡?</p> <p style="text-indent:2em;"> 煤炭质é‡çš„好与å与它的å‘热é‡å’Œå«¼‹«é‡æ˜¯æœ‰ç›´æŽ¥å…³ç³»çš„,我们把嫼‹«é‡ä½Žå‘热é‡é«˜çš„ç…¤ç‚­å®šäØ“å¥½ç…¤åQŒå®ƒæœ‰ä¸€å®šçš„æ ‡å‡† </p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 本标准规定了煤的高ä½å‘热é‡çš„‹¹‹å®šæ–ÒŽ³•和低ä½å‘热é‡çš„计½Ž—方法,适用于惔 ç‚­ã€è¤ç…¤ã€çƒŸç…¤ã€æ— çƒŸç…¤å’Œç‚­è´¨é¡µå²©çš„å‘çƒ­é‡æµ‹å®šã€?</p> <p style="text-indent:2em;"> 1 定义 </p> <p style="text-indent:2em;"> 1.1 热é‡å•ä½ </p> <p style="text-indent:2em;"> 热é‡çš„å•ä½äØ“J〔焦(è€?〕ã€?</p> <p style="text-indent:2em;"> 1J〔焦(è€?ã€?1N·m(牛顿·¾c?=107erg(ž®”æ ¼)ã€?</p> <p style="text-indent:2em;"> 我国˜q‡åŽ»æƒ¯ç”¨çš„çƒ­é‡å•ä½äØ“20℃å¡åQŒä»¥ä¸‹ç®€¿U°å¡(cal)ã€?</p> <p style="text-indent:2em;"> 1cal(20â„?=4.1816Jã€?</p> <p style="text-indent:2em;"> 1.2 å‘热é‡çš„表示æ–ÒŽ³• </p> <p style="text-indent:2em;"> å‘çƒ­é‡æµ‹å®šç»“果以kJ/g(åƒç„¦/å…?或MJ/kg(兆焦/åƒå…‹)表示ã€?</p> <p style="text-indent:2em;"> 1.2.1 弹筒å‘热é‡?字串9 </p> <p style="text-indent:2em;"> 在氧弹中åQŒåœ¨æœ‰è¿‡å‰©çš„æ°§çš„æƒ…况下〔氧气åˆå§‹åŽ‹åŠ?.6ï½?.0MPa(26ï½?</p> <p style="text-indent:2em;"> 30atm)〕,燃烧å•ä½è´¨é‡çš„试æ äh‰€äº§ç”Ÿçš„热é‡ç§°ä¸ºå¼¹½{’å‘热é‡ã€‚燃烧äñ”ç‰©äØ“äºŒæ°§ 化碳ã€ç¡«é…¸ã€ç¡é…¸ã€å‘ˆæ¶²æ€çš„æ°´å’Œå›ºæ€çš„ç°ã€?</p> <p style="text-indent:2em;"> 注:ä»ÖM½•物质(包括ç…?的燃烧热åQŒéšç‡ƒçƒ§äº§ç‰©çš„æœ€¾lˆæ¸©åº¦è€Œæ”¹å˜ï¼Œæ¸©åº¦­‘Šé«˜åQ?</p> <p style="text-indent:2em;"> 燃烧热越低。因此,一个严密的å‘热é‡å®šä¹‰ï¼Œåº”对烧烧产物的温度有所规定。但 </p> <p style="text-indent:2em;"> 在实际测定å‘çƒ­é‡æ—Óž¼Œç”׃ºŽå…·ä½“æ¡äšgçš„é™åˆÓž¼ŒæŠŠç»ˆç‚ÒŽ¸©åº¦é™å®šåœ¨ä¸€ä¸ªç‰¹å®šçš„æ¸©åº¦ </p> <p style="text-indent:2em;"> 或一个很½H„的范围内都是ä¸çŽ°å®žçš„ã€‚æ¸©åº¦æ¯å‡é«˜1KåQŒç…¤å’Œè‹¯ç”²é…¸çš„燃烧热¾U¦é™ä½?</p> <p style="text-indent:2em;"> 0.4ï½?.3J/g。当按规定在相近的温度下标定热容é‡å’Œ‹¹‹å®šå‘çƒ­é‡æ—¶åQŒæ¸©åº¦å¯¹ç‡ƒçƒ§ 热的影å“å¯è¿‘于完全抵销åQŒè€Œæ— éœ€åŠ ä»¥è€ƒè™‘ã€?</p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 1.2.2 æ’容高ä½å‘热é‡?</p> <p style="text-indent:2em;"> 煤在工业装置的实际燃烧中åQŒç¡«åªç”ŸæˆäºŒæ°§åŒ–¼‹«ï¼Œæ°®åˆ™æˆäؓ游离氮,˜q™æ˜¯åŒæ°§ </p> <p style="text-indent:2em;"> 弹中的情况ä¸åŒçš„。由弹筒å‘热é‡å‡æŽ‰ç¨€¼‹«é…¸ç”Ÿæˆçƒ­å’ŒäºŒæ°§åŒ–硫生æˆçƒ­ä¹‹å·®ä»¥åŠç¨€ </p> <p style="text-indent:2em;"> ¼‹é…¸çš„生æˆçƒ­åQŒå¾—出的ž®±æ˜¯é«˜ä½å‘热é‡ã€‚因为弹½{’å‘热é‡çš„æµ‹å®šæ˜¯åœ¨æ’定容¿U?å?</p> <p style="text-indent:2em;"> 弹筒的容¿U?下进行的åQŒç”±æ­¤ç®—出的高ä½å‘热é‡ä¹Ÿç›¸åº”地称为æ’定w«˜ä½å‘热é‡åQŒå®ƒ </p> <p style="text-indent:2em;"> 比工业上的æ’åŽ?å›_¤§æ°”压åŠ?状æ€ä¸‹çš„å‘热釾U¦ä½Ž8ï½?6J/gåQŒä¸€èˆ¬å¯å¿½ç•¥ä¸è®¡ã€?</p> <p style="text-indent:2em;"> 1.2.3 æ’容低ä½å‘热é‡?</p> <p style="text-indent:2em;"> 工业燃烧与氧弹中燃烧的å¦ä¸€ä¸ªä¸åŒçš„æ¡äšg是:在å‰ä¸€æƒ…况下全部水(包括ç‡?字串9 </p> <p style="text-indent:2em;"> 烧生æˆçš„æ°´å’Œç…¤ä¸­åŽŸæœ‰çš„æ°´)呈蒸汽状æ€éšç‡ƒçƒ§åºŸæ°”排出åQŒåœ¨åŽä¸€æƒ…况下水蒸气å‡?</p> <p style="text-indent:2em;"> ¾l“æˆæ¶²ä½“。由æ’容高ä½å‘热é‡å‡æŽ‰æ°´çš„è’¸å‘热åQŒå¾—出的ž®±æ˜¯æ’容低ä½å‘热é‡ã€?</p> <p style="text-indent:2em;"> 1.3 热容é‡?</p> <p style="text-indent:2em;"> é‡çƒ­¾pÈ»Ÿåœ¨è¯•验æ¡ä»¶ä¸‹æ¸©åº¦ä¸Šå‡1K所需的热é‡ç§°ä¸ºçƒ­é‡è®¡çš„热定w‡åQŒä¹ æƒ¯ä¸Š 也å«å𿰴当é‡åQŒä»¥J/K(或cal/â„?表示ã€?</p> <p style="text-indent:2em;"> 2 试验室æ¡ä»?</p> <p style="text-indent:2em;"> 2.1 试验室应讑֜¨ä¸€å•独戉K—´åQŒä¸å¾—在åŒä¸€æˆ‰K—´å†…åŒæ—¶è¿›è¡Œå…¶ä»–试验项目ã€?</p> <p style="text-indent:2em;"> 2.2 室温应尽é‡ä¿æŒæ’å®šï¼Œæ¯æ¬¡‹¹‹å®šå®¤æ¸©å˜åŒ–ä¸åº”­‘…过1KåQŒé€šå¸¸å®¤æ¸©ä»¥ä¸­‘…出15ï½?35â„ƒèŒƒå›´äØ“å®œã€?</p> <p style="text-indent:2em;"> 2.3 室内应无强烈的空气对‹¹ï¼Œå› æ­¤ä¸åº”有强烈的热æºå’Œé£Žæ‰‡ç­‰åQŒè¯•验过½E‹ä¸­åº”é¿ å…å¼€å¯é—¨½H—ã€?字串7 </p> <p style="text-indent:2em;"> 2.4 实验室最好æœåŒ—,以é¿å…阳光照ž®„,å¦åˆ™çƒ­é‡è®¡åº”攑֜¨ä¸å—阛_…‰ç›´å°„的地æ–V€?</p> <p style="text-indent:2em;"> 3 仪器讑֤‡ </p> <p style="text-indent:2em;"> 3.1 热é‡è®?</p> <p style="text-indent:2em;"> <br /> 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