例(li)如(ru)，在(zai)钢(gang)铁生(sheng)(sheng)(sheng)产(chan)(chan)(chan)中(zhong)，高温炉气可以(yi)通(tong)过热(re)(re)交换(huan)器(qi)，产(chan)(chan)(chan)生(sheng)(sheng)(sheng)蒸汽或(huo)热(re)(re)水，用(yong)(yong)于(yu)(yu)供热(re)(re)或(huo)发(fa)(fa)电(dian)；在(zai)化工(gong)(gong)生(sheng)(sheng)(sheng)产(chan)(chan)(chan)中(zhong)，高温高压(ya)的(de)(de)(de)(de)废(fei)气可以(yi)通(tong)过蒸汽涡轮(lun)发(fa)(fa)电(dian)机组(zu)，产(chan)(chan)(chan)生(sheng)(sheng)(sheng)电(dian)能，用(yong)(yong)于(yu)(yu)供电(dian)或(huo)自用(yong)(yong)；在(zai)食品加(jia)工(gong)(gong)中(zhong)，废(fei)水可以(yi)通(tong)过热(re)(re)泵，产(chan)(chan)(chan)生(sheng)(sheng)(sheng)高温蒸汽，用(yong)(yong)于(yu)(yu)加(jia)热(re)(re)或(huo)蒸煮(zhu)。三、工(gong)(gong)业(ye)(ye)余(yu)热(re)(re)利用(yong)(yong)的(de)(de)(de)(de)市(shi)(shi)场(chang)前景和发(fa)(fa)展趋势工(gong)(gong)业(ye)(ye)余(yu)热(re)(re)利用(yong)(yong)在(zai)当前全球能源短缺(que)和环境污染日益严重(zhong)的(de)(de)(de)(de)情况下(xia)，具有广阔的(de)(de)(de)(de)市(shi)(shi)场(chang)前景和发(fa)(fa)展空间。根(gen)据国(guo)际能源署的(de)(de)(de)(de)预测，到(dao)2030年，全球工(gong)(gong)业(ye)(ye)废(fei)热(re)(re)的(de)(de)(de)(de)回(hui)收利用(yong)(yong)率将从(cong)目前的(de)(de)(de)(de)8%提高到(dao)20%以(yi)上，其中(zhong)中(zhong)国(guo)的(de)(de)(de)(de)回(hui)收利用(yong)(yong)率将达到(dao)30%以(yi)上。这意(yi)味着，工(gong)(gong)业(ye)(ye)余(yu)热(re)(re)利用(yong)(yong)将成为未来节能减排的(de)(de)(de)(de)重(zhong)要手段和产(chan)(chan)(chan)业(ye)(ye)发(fa)(fa)展的(de)(de)(de)(de)新(xin)方(fang)向(xiang)。我(wo)国(guo)工(gong)(gong)业(ye)(ye)余(yu)热(re)(re)利用(yong)(yong)现状分析！镇江介绍(shao)余(yu)热(re)(re)利用(yong)(yong)设备

余(yu)(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)锅(guo)(guo)(guo)(guo)炉(lu)(lu)(lu)的应用(yong)(yong)，凡是(shi)有大量余(yu)(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)的地方(fang)，都可以余(yu)(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)锅(guo)(guo)(guo)(guo)炉(lu)(lu)(lu)回收利(li)用(yong)(yong)，预(yu)(yu)计(ji)(ji)(ji)其他行业未来(lai)5年余(yu)(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)锅(guo)(guo)(guo)(guo)炉(lu)(lu)(lu)市(shi)(shi)场(chang)规(gui)模约(yue)达35亿元。余(yu)(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)锅(guo)(guo)(guo)(guo)炉(lu)(lu)(lu)市(shi)(shi)场(chang)容量：余(yu)(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)锅(guo)(guo)(guo)(guo)炉(lu)(lu)(lu)产(chan)(chan)(chan)业属于技(ji)术和(he)劳动密集型产(chan)(chan)(chan)业，随着产(chan)(chan)(chan)业的分工转移(yi)，预(yu)(yu)计(ji)(ji)(ji)有更多(duo)国(guo)外企业将(jiang)余(yu)(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)锅(guo)(guo)(guo)(guo)炉(lu)(lu)(lu)的生产(chan)(chan)(chan)转移(yi)到(dao)中(zhong)国(guo)或(huo)直接在中(zhong)国(guo)采购，目前国(guo)内(nei)产(chan)(chan)(chan)家(jia)已经进(jin)入市(shi)(shi)场(chang)，余(yu)(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)锅(guo)(guo)(guo)(guo)炉(lu)(lu)(lu)产(chan)(chan)(chan)品出口到(dao)美(mei)国(guo)、德国(guo)、奥地利(li)、印度(du)、尼日利(li)亚(ya)、非洲等(deng)国(guo)家(jia)和(he)地区。估计(ji)(ji)(ji)市(shi)(shi)场(chang)余(yu)(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)锅(guo)(guo)(guo)(guo)炉(lu)(lu)(lu)市(shi)(shi)场(chang)约(yue)是(shi)国(guo)内(nei)市(shi)(shi)场(chang)的1.5倍左右，未来(lai)5年余(yu)(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)锅(guo)(guo)(guo)(guo)炉(lu)(lu)(lu)市(shi)(shi)场(chang)容量大约(yue)400亿元，国(guo)内(nei)市(shi)(shi)场(chang)合计(ji)(ji)(ji)约(yue)680亿元，余(yu)(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)锅(guo)(guo)(guo)(guo)炉(lu)(lu)(lu)市(shi)(shi)场(chang)前景非常广阔。湖州(zhou)介绍余(yu)(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)利(li)用(yong)(yong)系统余(yu)(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)回收再利(li)用(yong)(yong)的这(zhei)些方(fang)式值得关注。

根(gen)据调(diao)查数据，各行业的(de)余(yu)(yu)(yu)(yu)热(re)(re)(re)总资(zi)(zi)源(yuan)(yuan)约(yue)占其燃(ran)料消耗(hao)总量的(de)17%-67%，可回(hui)收(shou)率达(da)60%。可回(hui)收(shou)利用的(de)余(yu)(yu)(yu)(yu)热(re)(re)(re)资(zi)(zi)源(yuan)(yuan)约(yue)为燃(ran)料消耗(hao)总量10.2%-40.2%。按照10%的(de)水平保(bao)守估计，2020年(nian)(nian)我(wo)国(guo)(guo)潜(qian)(qian)在的(de)可回(hui)收(shou)利用的(de)余(yu)(yu)(yu)(yu)热(re)(re)(re)资(zi)(zi)源(yuan)(yuan)达(da)到4.98亿吨标(biao)准煤，近(jin)6年(nian)(nian)可回(hui)收(shou)利用的(de)余(yu)(yu)(yu)(yu)热(re)(re)(re)资(zi)(zi)源(yuan)(yuan)为27.88亿吨标(biao)准煤，基本(ben)可以覆盖我(wo)国(guo)(guo)目前半年(nian)(nian)的(de)能源(yuan)(yuan)消耗(hao)需(xu)求。根(gen)据数据统计分析并依(yi)然(ran)按10%保(bao)守估计，考虑余(yu)(yu)(yu)(yu)热(re)(re)(re)资(zi)(zi)源(yuan)(yuan)中有50%高温烟(yan)气余(yu)(yu)(yu)(yu)热(re)(re)(re)回(hui)收(shou)容易，预计2021年(nian)(nian)我(wo)国(guo)(guo)余(yu)(yu)(yu)(yu)热(re)(re)(re)资(zi)(zi)源(yuan)(yuan)潜(qian)(qian)在利用价值超2500亿元(yuan)，到2026年(nian)(nian)将达(da)2930亿元(yuan)。

余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)利(li)用(yong)(yong)(yong)(yong)(yong)：在(zai)(zai)(zai)近日发(fa)布(bu)的(de)(de)(de)(de)《2030年前碳达峰行动(dong)方(fang)(fang)案》中(zhong)(zhong)(zhong)，“余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)”一词在(zai)(zai)(zai)不同章节(jie)共出现5次，可见我国在(zai)(zai)(zai)战略层面已经(jing)对余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)利(li)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)巨大价值予以(yi)重视(shi)。余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)在(zai)(zai)(zai)能(neng)(neng)源行业中(zhong)(zhong)(zhong)具有重要(yao)地位。余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)资源普遍存在(zai)(zai)(zai)于(yu)钢铁、化工(gong)(gong)、轻工(gong)(gong)、食品(pin)生产等工(gong)(gong)业领域，是(shi)生产过(guo)(guo)程中(zhong)(zhong)(zhong)释放出来的(de)(de)(de)(de)可被利(li)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)热(re)(re)(re)(re)(re)(re)能(neng)(neng)。据国外研究机(ji)构统计，工(gong)(gong)业部门在(zai)(zai)(zai)对化石能(neng)(neng)源的(de)(de)(de)(de)利(li)用(yong)(yong)(yong)(yong)(yong)过(guo)(guo)程中(zhong)(zhong)(zhong)，被有效利(li)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)能(neng)(neng)源量(liang)占40%，其(qi)余(yu)(yu)(yu)(yu)60%都(dou)终转(zhuan)化为了余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)。余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)按品(pin)位分(fen)为高(gao)品(pin)位、中(zhong)(zhong)(zhong)品(pin)位、低(di)(di)(di)(di)品(pin)位，其(qi)中(zhong)(zhong)(zhong)，中(zhong)(zhong)(zhong)高(gao)品(pin)位的(de)(de)(de)(de)余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)大多通(tong)过(guo)(guo)余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)发(fa)电(dian)(dian)项目得到了回收(shou)利(li)用(yong)(yong)(yong)(yong)(yong)。化工(gong)(gong)厂的(de)(de)(de)(de)高(gao)温(wen)(wen)(wen)高(gao)压(ya)(ya)蒸(zheng)(zheng)汽(qi)(qi)，需要(yao)使(shi)用(yong)(yong)(yong)(yong)(yong)减(jian)(jian)温(wen)(wen)(wen)减(jian)(jian)压(ya)(ya)阀，减(jian)(jian)成(cheng)中(zhong)(zhong)(zhong)压(ya)(ya)和低(di)(di)(di)(di)压(ya)(ya)的(de)(de)(de)(de)蒸(zheng)(zheng)汽(qi)(qi)，才能(neng)(neng)进(jin)一步利(li)用(yong)(yong)(yong)(yong)(yong)。这种情况下(xia)，在(zai)(zai)(zai)中(zhong)(zhong)(zhong)间加一个汽(qi)(qi)轮机(ji)，用(yong)(yong)(yong)(yong)(yong)高(gao)压(ya)(ya)的(de)(de)(de)(de)蒸(zheng)(zheng)汽(qi)(qi)推(tui)动(dong)汽(qi)(qi)轮机(ji)做功，把压(ya)(ya)力转(zhuan)化为动(dong)能(neng)(neng)，可以(yi)带动(dong)发(fa)电(dian)(dian)机(ji)发(fa)电(dian)(dian)。同时高(gao)压(ya)(ya)的(de)(de)(de)(de)蒸(zheng)(zheng)汽(qi)(qi)也转(zhuan)化成(cheng)了低(di)(di)(di)(di)压(ya)(ya)和中(zhong)(zhong)(zhong)压(ya)(ya)的(de)(de)(de)(de)蒸(zheng)(zheng)汽(qi)(qi)，继(ji)续(xu)在(zai)(zai)(zai)工(gong)(gong)艺中(zhong)(zhong)(zhong)使(shi)用(yong)(yong)(yong)(yong)(yong)。而低(di)(di)(di)(di)品(pin)位余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)，包括热(re)(re)(re)(re)(re)(re)值小(xiao)于(yu)600千(qian)卡(ka)/标准立方(fang)(fang)米的(de)(de)(de)(de)低(di)(di)(di)(di)浓(nong)度(du)可燃物(wu)，温(wen)(wen)(wen)度(du)低(di)(di)(di)(di)于(yu)800摄氏度(du)的(de)(de)(de)(de)显(xian)热(re)(re)(re)(re)(re)(re)物(wu)体，温(wen)(wen)(wen)度(du)低(di)(di)(di)(di)于(yu)400摄氏度(du)的(de)(de)(de)(de)低(di)(di)(di)(di)温(wen)(wen)(wen)尾气(qi)、烟气(qi)，由于(yu)温(wen)(wen)(wen)度(du)低(di)(di)(di)(di)、浓(nong)度(du)小(xiao)、能(neng)(neng)量(liang)少，因此被当成(cheng)废热(re)(re)(re)(re)(re)(re)，大多通(tong)过(guo)(guo)冷(leng)却的(de)(de)(de)(de)形式排放或(huo)直接排放。余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)开始被广(guang)泛应用(yong)(yong)(yong)(yong)(yong)，余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)回收(shou)的(de)(de)(de)(de)方(fang)(fang)式是(shi)根据余(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)的(de)(de)(de)(de)品(pin)质。

余(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)(re)回(hui)收(shou)技(ji)术中(zhong)的(de)(de)(de)热(re)(re)(re)(re)(re)(re)(re)交(jiao)换(huan)(huan)技(ji)术是**直接(jie)、效(xiao)率较高(gao)的(de)(de)(de)经(jing)济方法，在不(bu)(bu)改变(bian)余(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)(re)能量形式(shi)(shi)(shi)下(xia),通过换(huan)(huan)热(re)(re)(re)(re)(re)(re)(re)设备(bei)将余(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)(re)能量，直接(jie)传递给自身(shen)工(gong)艺(yi)的(de)(de)(de)耗(hao)(hao)能过程，降(jiang)低(di)一(yi)次能源(yuan)消(xiao)耗(hao)(hao)。主要利(li)(li)用(yong)(yong)(yong)(yong)方式(shi)(shi)(shi)有(you)间壁式(shi)(shi)(shi)换(huan)(huan)热(re)(re)(re)(re)(re)(re)(re)、余(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)(re)锅炉、蓄热(re)(re)(re)(re)(re)(re)(re)式(shi)(shi)(shi)热(re)(re)(re)(re)(re)(re)(re)交(jiao)换(huan)(huan)、热(re)(re)(re)(re)(re)(re)(re)管的(de)(de)(de)换(huan)(huan)热(re)(re)(re)(re)(re)(re)(re)等。余(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)(re)回(hui)收(shou)技(ji)术中(zhong)利(li)(li)用(yong)(yong)(yong)(yong)热(re)(re)(re)(re)(re)(re)(re)功(gong)转换(huan)(huan)技(ji)术，可提高(gao)余(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)(re)的(de)(de)(de)品位(wei)，是工(gong)业余(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)(re)另一(yi)重要技(ji)术。余(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)(re)回(hui)收(shou)技(ji)术中(zhong)与传统压(ya)缩式(shi)(shi)(shi)制(zhi)冷(leng)机(ji)(ji)组相比，吸(xi)(xi)收(shou)式(shi)(shi)(shi)、吸(xi)(xi)附(fu)(fu)式(shi)(shi)(shi)制(zhi)冷(leng)系统，可利(li)(li)用(yong)(yong)(yong)(yong)廉(lian)价(jia)能源(yuan)，低(di)品位(wei)热(re)(re)(re)(re)(re)(re)(re)能避免电(dian)(dian)耗(hao)(hao)，具有(you)的(de)(de)(de)节电(dian)(dian)效(xiao)果(guo)，得到的(de)(de)(de)推广(guang)应(ying)用(yong)(yong)(yong)(yong)。吸(xi)(xi)收(shou)式(shi)(shi)(shi)余(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)(re)制(zhi)冷(leng)机(ji)(ji)组，制(zhi)冷(leng)效(xiao)率高(gao)，适用(yong)(yong)(yong)(yong)于大规模热(re)(re)(re)(re)(re)(re)(re)量回(hui)收(shou)。而吸(xi)(xi)附(fu)(fu)式(shi)(shi)(shi)制(zhi)冷(leng)系统结构简单、无(wu)噪音、无(wu)污染，可用(yong)(yong)(yong)(yong)于颠簸震荡场(chang)合，更适合小热(re)(re)(re)(re)(re)(re)(re)量回(hui)收(shou)，或用(yong)(yong)(yong)(yong)于冷(leng)热(re)(re)(re)(re)(re)(re)(re)电(dian)(dian)联产系统。热(re)(re)(re)(re)(re)(re)(re)泵以消(xiao)耗(hao)(hao)一(yi)部分(电(dian)(dian)能、机(ji)(ji)械能、高(gao)温热(re)(re)(re)(re)(re)(re)(re)能)作(zuo)为补(bu)偿，通过制(zhi)冷(leng)机(ji)(ji)热(re)(re)(re)(re)(re)(re)(re)力循环，把(ba)低(di)温余(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)(re)源(yuan)热(re)(re)(re)(re)(re)(re)(re)量“泵送(song)”到高(gao)温热(re)(re)(re)(re)(re)(re)(re)媒，热(re)(re)(re)(re)(re)(re)(re)泵技(ji)术常被用(yong)(yong)(yong)(yong)于，回(hui)收(shou)略高(gao)于环境温度(du)(30～60℃)废(fei)热(re)(re)(re)(re)(re)(re)(re)，达到节能降(jiang)耗(hao)(hao)目的(de)(de)(de)。余(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)(re)的(de)(de)(de)可利(li)(li)用(yong)(yong)(yong)(yong)性和价(jia)值不(bu)(bu)等于余(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)(re)利(li)(li)用(yong)(yong)(yong)(yong)的(de)(de)(de)效(xiao)果(guo)。湖(hu)州(zhou)设备(bei)余(yu)(yu)(yu)(yu)(yu)热(re)(re)(re)(re)(re)(re)(re)利(li)(li)用(yong)(yong)(yong)(yong)定(ding)制(zhi)价(jia)格

余(yu)热锅炉的(de)应用(yong)，凡是(shi)有大量余(yu)热的(de)地方，都(dou)可以(yi)余(yu)热锅炉回收利用(yong)。镇江(jiang)介(jie)绍(shao)余(yu)热利用(yong)设备

在(zai)电(dian)弧炉(lu)(lu)(lu)的(de)(de)(de)热(re)(re)(re)平衡中，烟气(qi)(qi)显热(re)(re)(re)一(yi)般(ban)占电(dian)炉(lu)(lu)(lu)热(re)(re)(re)量(liang)的(de)(de)(de)20%。国内电(dian)弧炉(lu)(lu)(lu)烟气(qi)(qi)的(de)(de)(de)余(yu)(yu)热(re)(re)(re)利用尚不(bu)普及。回(hui)收(shou)利用电(dian)炉(lu)(lu)(lu)烟气(qi)(qi)常(chang)用的(de)(de)(de)两(liang)种装置是废钢预热(re)(re)(re)器和余(yu)(yu)热(re)(re)(re)锅(guo)炉(lu)(lu)(lu)。从(cong)(cong)二者回(hui)收(shou)能量(liang)的(de)(de)(de)数量(liang)来(lai)看，余(yu)(yu)热(re)(re)(re)锅(guo)炉(lu)(lu)(lu)回(hui)收(shou)的(de)(de)(de)热(re)(re)(re)能较多(为(wei)预热(re)(re)(re)废钢的(de)(de)(de)2.5倍(bei))；但若(ruo)从(cong)(cong)能量(liang)质量(liang)的(de)(de)(de)角度(du)看，则是预热(re)(re)(re)废钢的(de)(de)(de)方式(shi)高，即预热(re)(re)(re)废钢回(hui)收(shou)的(de)(de)(de)热(re)(re)(re)量(liang)中可用能较多、能级较高、热(re)(re)(re)价较高；从(cong)(cong)主体设(she)备(bei)的(de)(de)(de)生产(chan)工艺来(lai)看，也(ye)以(yi)预热(re)(re)(re)废钢为(wei)优。因为(wei)电(dian)炉(lu)(lu)(lu)炼钢是以(yi)炼钢为(wei)目的(de)(de)(de)，回(hui)收(shou)废气(qi)(qi)余(yu)(yu)热(re)(re)(re)来(lai)预热(re)(re)(re)废钢具(ju)有综合效益。镇江介绍余(yu)(yu)热(re)(re)(re)利用设(she)备(bei)

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