例如，在(zai)钢铁生产(chan)中，高(gao)(gao)(gao)温(wen)(wen)炉气(qi)可(ke)以(yi)通过(guo)热(re)(re)(re)交换器(qi)，产(chan)生蒸(zheng)(zheng)汽(qi)(qi)或(huo)(huo)热(re)(re)(re)水(shui)，用(yong)(yong)(yong)(yong)(yong)于(yu)供热(re)(re)(re)或(huo)(huo)发(fa)电；在(zai)化工(gong)(gong)(gong)生产(chan)中，高(gao)(gao)(gao)温(wen)(wen)高(gao)(gao)(gao)压(ya)的(de)(de)(de)(de)废(fei)气(qi)可(ke)以(yi)通过(guo)蒸(zheng)(zheng)汽(qi)(qi)涡轮发(fa)电机组(zu)，产(chan)生电能(neng)，用(yong)(yong)(yong)(yong)(yong)于(yu)供电或(huo)(huo)自用(yong)(yong)(yong)(yong)(yong)；在(zai)食品加(jia)工(gong)(gong)(gong)中，废(fei)水(shui)可(ke)以(yi)通过(guo)热(re)(re)(re)泵，产(chan)生高(gao)(gao)(gao)温(wen)(wen)蒸(zheng)(zheng)汽(qi)(qi)，用(yong)(yong)(yong)(yong)(yong)于(yu)加(jia)热(re)(re)(re)或(huo)(huo)蒸(zheng)(zheng)煮。三、工(gong)(gong)(gong)业(ye)(ye)余(yu)热(re)(re)(re)利(li)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)市(shi)场前景和(he)发(fa)展(zhan)趋(qu)势工(gong)(gong)(gong)业(ye)(ye)余(yu)热(re)(re)(re)利(li)用(yong)(yong)(yong)(yong)(yong)在(zai)当前全球能(neng)源短缺和(he)环(huan)境污染(ran)日益(yi)严重的(de)(de)(de)(de)情况下，具有广(guang)阔的(de)(de)(de)(de)市(shi)场前景和(he)发(fa)展(zhan)空间(jian)。根(gen)据国(guo)际能(neng)源署(shu)的(de)(de)(de)(de)预测(ce)，到(dao)2030年，全球工(gong)(gong)(gong)业(ye)(ye)废(fei)热(re)(re)(re)的(de)(de)(de)(de)回收利(li)用(yong)(yong)(yong)(yong)(yong)率(lv)将(jiang)从目前的(de)(de)(de)(de)8%提高(gao)(gao)(gao)到(dao)20%以(yi)上(shang)，其(qi)中中国(guo)的(de)(de)(de)(de)回收利(li)用(yong)(yong)(yong)(yong)(yong)率(lv)将(jiang)达到(dao)30%以(yi)上(shang)。这意(yi)味着，工(gong)(gong)(gong)业(ye)(ye)余(yu)热(re)(re)(re)利(li)用(yong)(yong)(yong)(yong)(yong)将(jiang)成为未来节能(neng)减排(pai)的(de)(de)(de)(de)重要手段和(he)产(chan)业(ye)(ye)发(fa)展(zhan)的(de)(de)(de)(de)新方向(xiang)。我国(guo)工(gong)(gong)(gong)业(ye)(ye)余(yu)热(re)(re)(re)利(li)用(yong)(yong)(yong)(yong)(yong)现状分析！镇(zhen)江介绍余(yu)热(re)(re)(re)利(li)用(yong)(yong)(yong)(yong)(yong)设备

余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)锅(guo)(guo)炉(lu)(lu)的应用，凡是有大量余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)的地方(fang)，都可以余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)锅(guo)(guo)炉(lu)(lu)回收利用，预计其他行(xing)业(ye)未来5年(nian)余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)锅(guo)(guo)炉(lu)(lu)市(shi)(shi)(shi)(shi)场(chang)(chang)规(gui)模约达35亿(yi)元(yuan)。余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)锅(guo)(guo)炉(lu)(lu)市(shi)(shi)(shi)(shi)场(chang)(chang)容量：余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)锅(guo)(guo)炉(lu)(lu)产(chan)业(ye)属于技(ji)术和(he)劳(lao)动密(mi)集型产(chan)业(ye)，随着产(chan)业(ye)的分工(gong)转移，预计有更多国(guo)(guo)(guo)外(wai)企(qi)业(ye)将余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)锅(guo)(guo)炉(lu)(lu)的生(sheng)产(chan)转移到(dao)中(zhong)国(guo)(guo)(guo)或直接(jie)在中(zhong)国(guo)(guo)(guo)采购(gou)，目前国(guo)(guo)(guo)内(nei)产(chan)家已经进入(ru)市(shi)(shi)(shi)(shi)场(chang)(chang)，余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)锅(guo)(guo)炉(lu)(lu)产(chan)品出口到(dao)美国(guo)(guo)(guo)、德国(guo)(guo)(guo)、奥地利、印度、尼日利亚(ya)、非洲等国(guo)(guo)(guo)家和(he)地区。估(gu)计市(shi)(shi)(shi)(shi)场(chang)(chang)余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)锅(guo)(guo)炉(lu)(lu)市(shi)(shi)(shi)(shi)场(chang)(chang)约是国(guo)(guo)(guo)内(nei)市(shi)(shi)(shi)(shi)场(chang)(chang)的1.5倍左右，未来5年(nian)余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)锅(guo)(guo)炉(lu)(lu)市(shi)(shi)(shi)(shi)场(chang)(chang)容量大约400亿(yi)元(yuan)，国(guo)(guo)(guo)内(nei)市(shi)(shi)(shi)(shi)场(chang)(chang)合(he)计约680亿(yi)元(yuan)，余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)锅(guo)(guo)炉(lu)(lu)市(shi)(shi)(shi)(shi)场(chang)(chang)前景非常广(guang)阔。湖州(zhou)介绍余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)利用系统余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)回收再利用的这些方(fang)式值得关注。

根据(ju)调查数据(ju)，各行(xing)业的(de)(de)(de)(de)余(yu)热(re)(re)总(zong)资(zi)(zi)源(yuan)约占其燃料消耗总(zong)量(liang)的(de)(de)(de)(de)17%-67%，可回(hui)收(shou)率达(da)(da)60%。可回(hui)收(shou)利(li)用(yong)的(de)(de)(de)(de)余(yu)热(re)(re)资(zi)(zi)源(yuan)约为(wei)燃料消耗总(zong)量(liang)10.2%-40.2%。按(an)(an)照10%的(de)(de)(de)(de)水平保(bao)守估计(ji)(ji)，2020年(nian)我(wo)国(guo)(guo)潜在的(de)(de)(de)(de)可回(hui)收(shou)利(li)用(yong)的(de)(de)(de)(de)余(yu)热(re)(re)资(zi)(zi)源(yuan)达(da)(da)到4.98亿(yi)吨(dun)标准煤，近6年(nian)可回(hui)收(shou)利(li)用(yong)的(de)(de)(de)(de)余(yu)热(re)(re)资(zi)(zi)源(yuan)为(wei)27.88亿(yi)吨(dun)标准煤，基本可以覆盖我(wo)国(guo)(guo)目前(qian)半年(nian)的(de)(de)(de)(de)能源(yuan)消耗需求(qiu)。根据(ju)数据(ju)统计(ji)(ji)分析并依然按(an)(an)10%保(bao)守估计(ji)(ji)，考虑余(yu)热(re)(re)资(zi)(zi)源(yuan)中有(you)50%高温烟气余(yu)热(re)(re)回(hui)收(shou)容易，预(yu)计(ji)(ji)2021年(nian)我(wo)国(guo)(guo)余(yu)热(re)(re)资(zi)(zi)源(yuan)潜在利(li)用(yong)价值超(chao)2500亿(yi)元，到2026年(nian)将达(da)(da)2930亿(yi)元。

余(yu)(yu)热(re)(re)(re)(re)(re)(re)利(li)(li)(li)用(yong)(yong)(yong)：在(zai)(zai)(zai)近(jin)日发布的(de)《2030年前碳达(da)峰行动(dong)(dong)方(fang)案》中(zhong)，“余(yu)(yu)热(re)(re)(re)(re)(re)(re)”一(yi)(yi)词在(zai)(zai)(zai)不同(tong)章节(jie)共出现5次，可见我国(guo)在(zai)(zai)(zai)战略层面已经对(dui)余(yu)(yu)热(re)(re)(re)(re)(re)(re)利(li)(li)(li)用(yong)(yong)(yong)的(de)巨大价(jia)值(zhi)予以(yi)重视。余(yu)(yu)热(re)(re)(re)(re)(re)(re)在(zai)(zai)(zai)能源(yuan)行业(ye)中(zhong)具有(you)重要地位(wei)(wei)。余(yu)(yu)热(re)(re)(re)(re)(re)(re)资源(yuan)普遍存在(zai)(zai)(zai)于钢(gang)铁、化(hua)工、轻工、食品(pin)生产等(deng)工业(ye)领域，是生产过(guo)程中(zhong)释放出来的(de)可被(bei)利(li)(li)(li)用(yong)(yong)(yong)的(de)热(re)(re)(re)(re)(re)(re)能。据国(guo)外研究机(ji)(ji)构统计，工业(ye)部门在(zai)(zai)(zai)对(dui)化(hua)石能源(yuan)的(de)利(li)(li)(li)用(yong)(yong)(yong)过(guo)程中(zhong)，被(bei)有(you)效利(li)(li)(li)用(yong)(yong)(yong)的(de)能源(yuan)量(liang)占40%，其余(yu)(yu)60%都终转化(hua)为(wei)了(le)余(yu)(yu)热(re)(re)(re)(re)(re)(re)。余(yu)(yu)热(re)(re)(re)(re)(re)(re)按(an)品(pin)位(wei)(wei)分为(wei)高(gao)品(pin)位(wei)(wei)、中(zhong)品(pin)位(wei)(wei)、低(di)(di)(di)品(pin)位(wei)(wei)，其中(zhong)，中(zhong)高(gao)品(pin)位(wei)(wei)的(de)余(yu)(yu)热(re)(re)(re)(re)(re)(re)大多通过(guo)余(yu)(yu)热(re)(re)(re)(re)(re)(re)发电项目得到(dao)了(le)回(hui)收利(li)(li)(li)用(yong)(yong)(yong)。化(hua)工厂的(de)高(gao)温(wen)高(gao)压(ya)(ya)(ya)蒸(zheng)汽(qi)(qi)，需(xu)要使(shi)用(yong)(yong)(yong)减温(wen)减压(ya)(ya)(ya)阀(fa)，减成中(zhong)压(ya)(ya)(ya)和低(di)(di)(di)压(ya)(ya)(ya)的(de)蒸(zheng)汽(qi)(qi)，才能进一(yi)(yi)步(bu)利(li)(li)(li)用(yong)(yong)(yong)。这种情况下，在(zai)(zai)(zai)中(zhong)间加(jia)一(yi)(yi)个汽(qi)(qi)轮(lun)机(ji)(ji)，用(yong)(yong)(yong)高(gao)压(ya)(ya)(ya)的(de)蒸(zheng)汽(qi)(qi)推(tui)动(dong)(dong)汽(qi)(qi)轮(lun)机(ji)(ji)做功，把压(ya)(ya)(ya)力转化(hua)为(wei)动(dong)(dong)能，可以(yi)带动(dong)(dong)发电机(ji)(ji)发电。同(tong)时(shi)高(gao)压(ya)(ya)(ya)的(de)蒸(zheng)汽(qi)(qi)也转化(hua)成了(le)低(di)(di)(di)压(ya)(ya)(ya)和中(zhong)压(ya)(ya)(ya)的(de)蒸(zheng)汽(qi)(qi)，继(ji)续在(zai)(zai)(zai)工艺中(zhong)使(shi)用(yong)(yong)(yong)。而低(di)(di)(di)品(pin)位(wei)(wei)余(yu)(yu)热(re)(re)(re)(re)(re)(re)，包括热(re)(re)(re)(re)(re)(re)值(zhi)小于600千卡/标准立方(fang)米的(de)低(di)(di)(di)浓(nong)(nong)度(du)(du)可燃物，温(wen)度(du)(du)低(di)(di)(di)于800摄(she)氏度(du)(du)的(de)显(xian)热(re)(re)(re)(re)(re)(re)物体，温(wen)度(du)(du)低(di)(di)(di)于400摄(she)氏度(du)(du)的(de)低(di)(di)(di)温(wen)尾气、烟气，由于温(wen)度(du)(du)低(di)(di)(di)、浓(nong)(nong)度(du)(du)小、能量(liang)少，因此被(bei)当成废热(re)(re)(re)(re)(re)(re)，大多通过(guo)冷却的(de)形式(shi)排放或直接排放。余(yu)(yu)热(re)(re)(re)(re)(re)(re)开始被(bei)广泛应(ying)用(yong)(yong)(yong)，余(yu)(yu)热(re)(re)(re)(re)(re)(re)回(hui)收的(de)方(fang)式(shi)是根据余(yu)(yu)热(re)(re)(re)(re)(re)(re)的(de)品(pin)质。

余(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)回(hui)收(shou)(shou)(shou)技(ji)术(shu)中的热(re)(re)(re)(re)(re)(re)交(jiao)换技(ji)术(shu)是**直接、效率较高(gao)(gao)的经济方法(fa)，在不改变(bian)余(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)能(neng)(neng)(neng)(neng)量(liang)形(xing)式(shi)(shi)(shi)下,通过换热(re)(re)(re)(re)(re)(re)设备(bei)将余(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)能(neng)(neng)(neng)(neng)量(liang)，直接传(chuan)递给自身工艺的耗(hao)能(neng)(neng)(neng)(neng)过程，降低(di)一(yi)(yi)次(ci)能(neng)(neng)(neng)(neng)源消耗(hao)。主(zhu)要利(li)用(yong)(yong)(yong)方式(shi)(shi)(shi)有间壁式(shi)(shi)(shi)换热(re)(re)(re)(re)(re)(re)、余(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)锅炉(lu)、蓄热(re)(re)(re)(re)(re)(re)式(shi)(shi)(shi)热(re)(re)(re)(re)(re)(re)交(jiao)换、热(re)(re)(re)(re)(re)(re)管的换热(re)(re)(re)(re)(re)(re)等。余(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)回(hui)收(shou)(shou)(shou)技(ji)术(shu)中利(li)用(yong)(yong)(yong)热(re)(re)(re)(re)(re)(re)功转换技(ji)术(shu)，可(ke)(ke)(ke)提高(gao)(gao)余(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)的品(pin)(pin)位，是工业(ye)余(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)另一(yi)(yi)重要技(ji)术(shu)。余(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)回(hui)收(shou)(shou)(shou)技(ji)术(shu)中与传(chuan)统压缩式(shi)(shi)(shi)制(zhi)冷机组相比，吸(xi)收(shou)(shou)(shou)式(shi)(shi)(shi)、吸(xi)附式(shi)(shi)(shi)制(zhi)冷系(xi)统，可(ke)(ke)(ke)利(li)用(yong)(yong)(yong)廉价能(neng)(neng)(neng)(neng)源，低(di)品(pin)(pin)位热(re)(re)(re)(re)(re)(re)能(neng)(neng)(neng)(neng)避免(mian)电(dian)耗(hao)，具(ju)有的节电(dian)效果，得到(dao)(dao)的推(tui)广应用(yong)(yong)(yong)。吸(xi)收(shou)(shou)(shou)式(shi)(shi)(shi)余(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)制(zhi)冷机组，制(zhi)冷效率高(gao)(gao)，适用(yong)(yong)(yong)于(yu)大(da)规模热(re)(re)(re)(re)(re)(re)量(liang)回(hui)收(shou)(shou)(shou)。而吸(xi)附式(shi)(shi)(shi)制(zhi)冷系(xi)统结构简(jian)单(dan)、无噪音、无污染，可(ke)(ke)(ke)用(yong)(yong)(yong)于(yu)颠簸震荡(dang)场合，更适合小(xiao)热(re)(re)(re)(re)(re)(re)量(liang)回(hui)收(shou)(shou)(shou)，或(huo)用(yong)(yong)(yong)于(yu)冷热(re)(re)(re)(re)(re)(re)电(dian)联产(chan)系(xi)统。热(re)(re)(re)(re)(re)(re)泵以(yi)消耗(hao)一(yi)(yi)部分(fen)(电(dian)能(neng)(neng)(neng)(neng)、机械能(neng)(neng)(neng)(neng)、高(gao)(gao)温(wen)热(re)(re)(re)(re)(re)(re)能(neng)(neng)(neng)(neng))作为补偿，通过制(zhi)冷机热(re)(re)(re)(re)(re)(re)力循环，把(ba)低(di)温(wen)余(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)源热(re)(re)(re)(re)(re)(re)量(liang)“泵送”到(dao)(dao)高(gao)(gao)温(wen)热(re)(re)(re)(re)(re)(re)媒，热(re)(re)(re)(re)(re)(re)泵技(ji)术(shu)常被用(yong)(yong)(yong)于(yu)，回(hui)收(shou)(shou)(shou)略高(gao)(gao)于(yu)环境(jing)温(wen)度(30～60℃)废热(re)(re)(re)(re)(re)(re)，达到(dao)(dao)节能(neng)(neng)(neng)(neng)降耗(hao)目的。余(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)的可(ke)(ke)(ke)利(li)用(yong)(yong)(yong)性和(he)价值(zhi)不等于(yu)余(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)利(li)用(yong)(yong)(yong)的效果。湖州设备(bei)余(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)利(li)用(yong)(yong)(yong)定制(zhi)价格

余(yu)热(re)锅炉的应用(yong)(yong)，凡(fan)是有大量余(yu)热(re)的地方，都可以余(yu)热(re)锅炉回收利(li)(li)用(yong)(yong)。镇江介绍余(yu)热(re)利(li)(li)用(yong)(yong)设备

在电弧炉(lu)(lu)(lu)(lu)的热(re)平衡中(zhong)，烟气(qi)显热(re)一般占(zhan)电炉(lu)(lu)(lu)(lu)热(re)量的20%。国内电弧炉(lu)(lu)(lu)(lu)烟气(qi)的余(yu)热(re)利用(yong)尚(shang)不(bu)普及。回(hui)收(shou)(shou)(shou)利用(yong)电炉(lu)(lu)(lu)(lu)烟气(qi)常用(yong)的两种(zhong)装置(zhi)是废(fei)钢(gang)(gang)预(yu)(yu)(yu)热(re)器(qi)和余(yu)热(re)锅炉(lu)(lu)(lu)(lu)。从二(er)者回(hui)收(shou)(shou)(shou)能(neng)(neng)(neng)量的数量来(lai)看，余(yu)热(re)锅炉(lu)(lu)(lu)(lu)回(hui)收(shou)(shou)(shou)的热(re)能(neng)(neng)(neng)较(jiao)多(为(wei)预(yu)(yu)(yu)热(re)废(fei)钢(gang)(gang)的2.5倍)；但若从能(neng)(neng)(neng)量质量的角度看，则是预(yu)(yu)(yu)热(re)废(fei)钢(gang)(gang)的方(fang)式高，即预(yu)(yu)(yu)热(re)废(fei)钢(gang)(gang)回(hui)收(shou)(shou)(shou)的热(re)量中(zhong)可用(yong)能(neng)(neng)(neng)较(jiao)多、能(neng)(neng)(neng)级较(jiao)高、热(re)价较(jiao)高；从主体设备的生产工艺来(lai)看，也(ye)以预(yu)(yu)(yu)热(re)废(fei)钢(gang)(gang)为(wei)优。因为(wei)电炉(lu)(lu)(lu)(lu)炼钢(gang)(gang)是以炼钢(gang)(gang)为(wei)目(mu)的，回(hui)收(shou)(shou)(shou)废(fei)气(qi)余(yu)热(re)来(lai)预(yu)(yu)(yu)热(re)废(fei)钢(gang)(gang)具有综合效(xiao)益。镇(zhen)江介绍余(yu)热(re)利用(yong)设备

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