过热蒸汽的传热系数高？—— 蒸汽节能技术的分析

日期： 2023-01-11 作者：晟德亿编辑

很多企业直接将火电厂提供的过热蒸汽应用于换热设备，误以为这样可以降低蒸汽消耗。真的是这样吗？

过热蒸汽的传热系数很低。过热蒸汽的放热过程分为两个阶段：显热释放和潜热释放。与潜热相比，释放显热的时间长，热能少。而且当换热器表面的过热蒸汽放热降温时，远离换热表面的过热蒸汽很难释放热能，因为过热蒸汽和空气一样导热系数低。因此，过热蒸汽的传热系数远小于饱和蒸汽。过热度越高，传热系数越小。大多数情况下，对于盘管换热器，过热蒸汽的传热系数仅为饱和蒸汽的4%-8%左右。

降低生产效率虽然同压力下过热蒸汽的温度高于饱和蒸汽，但过热蒸汽的传热效率远低于饱和蒸汽，设备所能完成的热负荷降低。因此，当使用过热蒸汽时，设备的加热效率降低，生产效率降低。

增加蒸汽用量为了保证生产效率，现场操作人员会增加阀门开度，试图通过增加蒸汽流量来弥补换热设备的低效率。然而，由于热交换器可以完成的热负荷的减少，一些增加的蒸汽将在冷凝之前被释放，导致能量浪费。如果采取措施防止蒸汽在冷凝前从设备中排出，设备所能完成的热负荷也会降低。为了保证同样的产量，只能增加生产班次和投入设备的数量，终会增加蒸汽消耗。

由此可见，过热蒸汽虽然温度高，含热量大，但是直接用过热蒸汽进行热交换，不仅达不到节能效果，往往还会适得其反！

所以一般间接换热建议使用饱和蒸汽，从而达到蒸汽节能效果。

上一篇：如何提高蒸汽品质及换热效率？下一篇：蒸汽节能技术应用——焓差补偿扩容净化回收器

热门文章

苏州晟德亿节能环保科技有限公司与德国莱茵TUV可持续发展战略合作正式签约
2024-01-02
蒸汽节能设备之蒸汽热泵引射增压系统的介绍
2023-08-21
推动工业园区绿色低碳发展
2023-08-16
印染行业十四五发展指导意见
2023-07-28
工业蒸汽节能步入节能减排赛道，有哪些具体的实施措施？
2023-07-17
钢铁行业的节能降碳是如何实施的？
2023-07-13
蒸汽的汽化潜热、显热具体指什么？
2023-06-28
燃气蒸汽锅炉节能增效的方法有哪些？
2024-03-07
蒸汽节能设备中的蒸汽发生器可以节能吗？
2023-10-23
蒸汽节能技术助力节能降碳事业的进步
2023-03-15
晟德亿荣获苏州市获苏州市环境保护科学技术一等奖等多项奖项
2024-01-29
蒸汽疏水阀的作用有哪些？
2023-05-22

新闻资讯

热门标签更多

蒸汽排气阀蒸汽发生器选购注意事项密闭冷凝水回收装置减温减压装置工业蒸汽系统在蒸汽换热后存在高温冷凝水、低品质蒸汽、乏汽等余热未回收的问题闪蒸罐汽水分离器蒸汽发生器热泵化工、石化、食品等企业换热设备产生的高温冷凝水闪蒸系统再返回用汽设备进行换热生产。

二、在锅炉连排废水后端安装焓差补偿式扩容净化蒸汽调节阀彻底解决了锅炉连排损失问题。

蒸汽引射提温升压 ORC发电冷凝水疏水系统蒸汽发生器可以节能吗？蒸汽疏水阀的作用有哪些？乏汽闪蒸设备固定流道式闪蒸系统焓差补偿式扩容净化回收器蒸汽减温减压器冷凝水回收装置蒸汽疏水阀有哪几种？蒸汽减温减压蒸汽疏水阀为什么会漏汽？高频电磁蒸汽发生器G-ZQ 120KW 乏汽增压系统

联系信息

咨询电话：0512-63310362
手机：13912710981
邮箱：SZSDY123456@126.com
QQ：1037691616

基本文件流程错误 SQL 调试

/data/user/htdocs/public/index.php ( 1.19 KB )
/data/user/htdocs/thinkphp/base.php ( 2.60 KB )
/data/user/htdocs/thinkphp/library/think/Loader.php ( 21.07 KB )
/data/user/htdocs/vendor/composer/autoload_static.php ( 16.77 KB )
/data/user/htdocs/vendor/symfony/polyfill-php80/bootstrap.php ( 1.50 KB )
/data/user/htdocs/vendor/symfony/polyfill-mbstring/bootstrap.php ( 7.07 KB )
/data/user/htdocs/vendor/symfony/polyfill-php72/bootstrap.php ( 1.89 KB )
/data/user/htdocs/vendor/symfony/polyfill-php72/Php72.php ( 6.55 KB )
/data/user/htdocs/vendor/symfony/polyfill-intl-normalizer/bootstrap.php ( 0.71 KB )
/data/user/htdocs/vendor/symfony/polyfill-intl-idn/bootstrap.php ( 4.52 KB )
/data/user/htdocs/vendor/symfony/deprecation-contracts/function.php ( 0.98 KB )
/data/user/htdocs/vendor/ralouphie/getallheaders/src/getallheaders.php ( 1.60 KB )
/data/user/htdocs/vendor/guzzlehttp/psr7/src/functions_include.php ( 0.15 KB )
/data/user/htdocs/vendor/guzzlehttp/psr7/src/functions.php ( 13.09 KB )
/data/user/htdocs/vendor/guzzlehttp/promises/src/functions_include.php ( 0.16 KB )
/data/user/htdocs/vendor/guzzlehttp/promises/src/functions.php ( 9.89 KB )
/data/user/htdocs/vendor/guzzlehttp/guzzle/src/functions_include.php ( 0.16 KB )
/data/user/htdocs/vendor/guzzlehttp/guzzle/src/functions.php ( 9.70 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Functions/adjoint.php ( 0.69 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Functions/antidiagonal.php ( 0.74 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Functions/cofactors.php ( 0.70 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Functions/determinant.php ( 0.71 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Functions/diagonal.php ( 0.70 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Functions/identity.php ( 0.70 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Functions/inverse.php ( 0.69 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Functions/minors.php ( 0.69 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Functions/trace.php ( 0.69 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Functions/transpose.php ( 0.71 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Operations/add.php ( 0.93 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Operations/directsum.php ( 0.95 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Operations/subtract.php ( 0.96 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Operations/multiply.php ( 0.98 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Operations/divideby.php ( 0.96 KB )
/data/user/htdocs/vendor/markbaker/matrix/classes/src/Operations/divideinto.php ( 1.00 KB )
/data/user/htdocs/vendor/topthink/think-helper/src/helper.php ( 2.88 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/abs.php ( 0.81 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/acos.php ( 1.04 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/acosh.php ( 0.90 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/acot.php ( 0.74 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/acoth.php ( 0.76 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/acsc.php ( 0.83 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/acsch.php ( 0.86 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/argument.php ( 0.81 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/asec.php ( 0.83 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/asech.php ( 0.85 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/asin.php ( 1.01 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/asinh.php ( 0.91 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/atan.php ( 1.34 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/atanh.php ( 1.08 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/conjugate.php ( 0.74 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/cos.php ( 0.92 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/cosh.php ( 0.90 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/cot.php ( 0.83 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/coth.php ( 0.74 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/csc.php ( 0.82 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/csch.php ( 0.84 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/exp.php ( 0.92 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/inverse.php ( 0.87 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/ln.php ( 0.94 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/log2.php ( 1.06 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/log10.php ( 1.08 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/negative.php ( 0.76 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/pow.php ( 1.27 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/rho.php ( 0.84 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/sec.php ( 0.71 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/sech.php ( 0.74 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/sin.php ( 0.87 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/sinh.php ( 0.90 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/sqrt.php ( 0.81 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/tan.php ( 1.21 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/tanh.php ( 1.11 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/functions/theta.php ( 1.25 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/operations/add.php ( 1.26 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/operations/subtract.php ( 1.28 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/operations/multiply.php ( 1.41 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/operations/divideby.php ( 1.75 KB )
/data/user/htdocs/vendor/markbaker/complex/classes/src/operations/divideinto.php ( 1.75 KB )
/data/user/htdocs/vendor/karsonzhang/fastadmin-addons/src/common.php ( 14.76 KB )
/data/user/htdocs/thinkphp/library/think/Route.php ( 60.23 KB )
/data/user/htdocs/thinkphp/library/think/Config.php ( 6.38 KB )
/data/user/htdocs/thinkphp/library/think/Hook.php ( 4.71 KB )
/data/user/htdocs/vendor/topthink/think-captcha/src/helper.php ( 1.59 KB )
/data/user/htdocs/thinkphp/library/think/Validate.php ( 41.63 KB )
/data/user/htdocs/vendor/topthink/think-queue/src/common.php ( 1.19 KB )
/data/user/htdocs/thinkphp/library/think/Console.php ( 23.13 KB )
/data/user/htdocs/vendor/overtrue/wechat/src/Kernel/Support/Helpers.php ( 2.63 KB )
/data/user/htdocs/vendor/overtrue/wechat/src/Kernel/Helpers.php ( 1.89 KB )
/data/user/htdocs/thinkphp/library/think/Error.php ( 3.75 KB )
/data/user/htdocs/thinkphp/convention.php ( 10.37 KB )
/data/user/htdocs/thinkphp/library/think/Url.php ( 12.72 KB )
/data/user/htdocs/thinkphp/library/think/Request.php ( 49.78 KB )
/data/user/htdocs/thinkphp/library/think/App.php ( 21.51 KB )
/data/user/htdocs/application/config.php ( 11.79 KB )
/data/user/htdocs/thinkphp/library/think/Env.php ( 1.21 KB )
/data/user/htdocs/application/database.php ( 2.21 KB )
/data/user/htdocs/application/extra/addons.php ( 1.37 KB )
/data/user/htdocs/application/extra/queue.php ( 0.62 KB )
/data/user/htdocs/application/extra/site.php ( 2.24 KB )
/data/user/htdocs/application/extra/upload.php ( 0.69 KB )
/data/user/htdocs/application/tags.php ( 1.23 KB )
/data/user/htdocs/application/common.php ( 20.10 KB )
/data/user/htdocs/thinkphp/helper.php ( 17.30 KB )
/data/user/htdocs/thinkphp/library/think/Debug.php ( 7.13 KB )
/data/user/htdocs/thinkphp/library/think/Log.php ( 6.05 KB )
/data/user/htdocs/addons/alioss/Alioss.php ( 2.90 KB )
/data/user/htdocs/vendor/karsonzhang/fastadmin-addons/src/Addons.php ( 7.05 KB )
/data/user/htdocs/addons/cms/Cms.php ( 5.64 KB )
/data/user/htdocs/addons/alisms/Alisms.php ( 1.92 KB )
/data/user/htdocs/addons/nkeditor/Nkeditor.php ( 0.88 KB )
/data/user/htdocs/thinkphp/library/think/Cache.php ( 6.10 KB )
/data/user/htdocs/thinkphp/library/think/cache/driver/File.php ( 7.27 KB )
/data/user/htdocs/thinkphp/library/think/cache/Driver.php ( 5.98 KB )
/data/user/htdocs/thinkphp/library/think/View.php ( 6.77 KB )
/data/user/htdocs/thinkphp/library/think/view/driver/Think.php ( 5.64 KB )
/data/user/htdocs/thinkphp/library/think/Template.php ( 44.90 KB )
/data/user/htdocs/thinkphp/library/think/template/driver/File.php ( 2.24 KB )
/data/user/htdocs/addons/cms/config.php ( 22.79 KB )
/data/user/htdocs/application/common/behavior/Common.php ( 2.84 KB )
/data/user/htdocs/thinkphp/library/think/Lang.php ( 7.23 KB )
/data/user/htdocs/thinkphp/lang/zh-cn.php ( 11.81 KB )
/data/user/htdocs/application/route.php ( 0.90 KB )
/data/user/htdocs/vendor/karsonzhang/fastadmin-addons/src/addons/Route.php ( 2.70 KB )
/data/user/htdocs/application/common/lang/zh-cn/addon.php ( 6.09 KB )
/data/user/htdocs/extend/fast/Form.php ( 39.71 KB )
/data/user/htdocs/thinkphp/library/think/config/driver/Ini.php ( 0.83 KB )
/data/user/htdocs/addons/cms/controller/Archives.php ( 5.07 KB )
/data/user/htdocs/addons/cms/controller/Base.php ( 1.18 KB )
/data/user/htdocs/vendor/karsonzhang/fastadmin-addons/src/addons/Controller.php ( 6.38 KB )
/data/user/htdocs/thinkphp/library/think/Controller.php ( 6.07 KB )
/data/user/htdocs/thinkphp/library/traits/controller/Jump.php ( 4.90 KB )
/data/user/htdocs/addons/cms/lang/zh-cn.php ( 5.52 KB )
/data/user/htdocs/application/common/library/Auth.php ( 15.23 KB )
/data/user/htdocs/thinkphp/library/think/Cookie.php ( 7.54 KB )
/data/user/htdocs/application/common/model/Config.php ( 6.46 KB )
/data/user/htdocs/thinkphp/library/think/Model.php ( 69.14 KB )
/data/user/htdocs/addons/alioss/config.php ( 5.25 KB )
/data/user/htdocs/addons/cms/model/Archives.php ( 22.91 KB )
/data/user/htdocs/thinkphp/library/traits/model/SoftDelete.php ( 4.86 KB )
/data/user/htdocs/thinkphp/library/think/Db.php ( 6.67 KB )
/data/user/htdocs/thinkphp/library/think/db/connector/Mysql.php ( 3.89 KB )
/data/user/htdocs/thinkphp/library/think/db/Connection.php ( 29.97 KB )
/data/user/htdocs/thinkphp/library/think/db/Query.php ( 93.77 KB )
/data/user/htdocs/thinkphp/library/think/db/builder/Mysql.php ( 4.53 KB )
/data/user/htdocs/thinkphp/library/think/db/Builder.php ( 31.81 KB )
/data/user/htdocs/thinkphp/library/think/model/relation/BelongsTo.php ( 7.75 KB )
/data/user/htdocs/thinkphp/library/think/model/relation/OneToOne.php ( 10.03 KB )
/data/user/htdocs/thinkphp/library/think/model/Relation.php ( 3.61 KB )
/data/user/htdocs/addons/cms/model/Channel.php ( 15.95 KB )
/data/user/htdocs/addons/cms/model/Modelx.php ( 2.66 KB )
/data/user/htdocs/addons/cms/model/Fields.php ( 2.52 KB )
/data/user/htdocs/addons/cms/library/Service.php ( 19.99 KB )
/data/user/htdocs/application/common/model/User.php ( 3.95 KB )
/data/user/htdocs/runtime/temp/d1c98dc93dfe685defa603274253a404.php ( 31.11 KB )
/data/user/htdocs/thinkphp/library/think/db/Expression.php ( 1.11 KB )
/data/user/htdocs/thinkphp/library/think/Session.php ( 10.86 KB )
/data/user/htdocs/application/api/controller/Demo.php ( 3.63 KB )
/data/user/htdocs/application/common/controller/Api.php ( 9.14 KB )
/data/user/htdocs/extend/fast/Tree.php ( 15.51 KB )
/data/user/htdocs/thinkphp/library/think/model/Collection.php ( 2.27 KB )
/data/user/htdocs/thinkphp/library/think/Collection.php ( 10.91 KB )
/data/user/htdocs/addons/cms/model/Tag.php ( 6.13 KB )
/data/user/htdocs/thinkphp/library/think/Response.php ( 8.28 KB )
/data/user/htdocs/thinkphp/library/think/debug/Html.php ( 4.17 KB )