工廠蒸汽節(jié)能優(yōu)化改造技術的實施方案

日期：?2022-06-28 作者：晟德億編輯

某廠中壓蒸汽主要用于各加氫裝置的汽輪機注汽、塔底加熱和常減壓蒸餾裝置的管道。根據(jù)全廠各汽輪機進汽量的統(tǒng)計，發(fā)現(xiàn)在相同的功率和不同的蒸汽參數(shù)下，汽輪機的進汽量是不同的。蒸汽參數(shù)越高，蒸汽的可用能量越大，汽輪機的工作能力越強。因此，決定將中壓蒸汽壓力控制得盡可能高，以使汽輪機的工作效率更高。

蒸汽節(jié)能優(yōu)化改造技術方案

經(jīng)與全廠蒸汽用戶對接，全廠中壓蒸汽壓力由原來的3.25~3.45MPa調整為3.47~3.5MPa，中壓蒸汽壓力平均提高0.22MPa，節(jié)約蒸汽消耗約8t-h-1，保證了全廠蒸汽較好的工況。
為了使催化劑產(chǎn)生更多的蒸汽，煉油廠決定改變催化原料的性質。通過調整渣油加氫裝置反應器的反應條件，進行了催化原料的重生產(chǎn)，催化原料殘?zhí)坑?.5%逐步提高到6.6%左右。該催化裝置可增加中壓蒸汽產(chǎn)量40t·h-1、柴油加氫裝置、蠟油加氫裝置和渣油加氫裝置可以通過降低氫油比、降低循環(huán)氫壓縮機轉數(shù)等措施來節(jié)約中壓蒸汽的消耗。通過優(yōu)化操作，可降低汽提塔汽提蒸汽量，中壓蒸汽消耗可降低0.5t-h-1。
2、低壓蒸汽系統(tǒng)優(yōu)化及節(jié)能措施。根據(jù)凱恩有效能和朗肯循環(huán)理論，在溫度相同的情況下，高壓蒸汽的煙度比低壓蒸汽的煙度大。降低汽輪機背壓的壓力，可以在輸出功率一定的前提下，提高汽輪機的熱效率，降低汽輪機的蒸汽消耗。
從提高能效的角度來看，1.0MPa蒸汽管網(wǎng)壓力越低，1.0MPa汽輪機的蒸汽消耗率越低；1.0MPa蒸汽管網(wǎng)壓力越低，單位質量1.0MPa熱蒸汽所能提取的過熱段和潛熱段能量越大。優(yōu)化前公司低壓蒸汽壓力控制在1.0MPa左右，為了達到節(jié)能的效果，經(jīng)過研究，決定將低壓蒸汽壓力從1.0MPa適當降低到0.95MPa左右，優(yōu)化后汽輪機中壓蒸汽消耗減少3t-h-1。大修后，煉油廠只有常減壓蒸餾裝置的加熱爐還在燒燃料油，而燃料油系統(tǒng)的運行不僅需要用泵輸送，還需要使用伴熱，大大增加。
因此，公司對燃油系統(tǒng)進行了兩項優(yōu)化：
一、各生產(chǎn)部門要檢查自己的燃油系統(tǒng)，清洗各裝置界區(qū)內的燃油管道，停止使用燃油伴熱；
二、與常減壓蒸餾裝置溝通，在計算出常減壓蒸餾裝置的熱負荷后，停止整個廠區(qū)的燃油系統(tǒng)和燃油系統(tǒng)的伴熱。由于煉廠位于南方，即使是冷的冬天，溫度也在零度以上，所以在蒸汽的優(yōu)化上，輕油產(chǎn)品的伴熱也進行了優(yōu)化，節(jié)省了大量低壓蒸汽。
近，蠟油加氫裝置滿負荷運行。根據(jù)目前的運行情況，裝置組對換熱流程進行了優(yōu)化，將柴油循環(huán)量從120t-h-1提高到128t-h-1，并多產(chǎn)低壓蒸汽2t-h-1。2 3.低壓蒸汽系統(tǒng)的優(yōu)化節(jié)能措施。
硫磺回收裝置是低壓和低壓蒸汽的主要蒸汽消耗裝置。公司多次優(yōu)化700t-h-1和600t-h-1溶劑再生裝置，打破工藝包和設計院提供的操作參數(shù)，分階段降低蒸汽消耗。根據(jù)設計參數(shù)，兩臺大型溶劑再生裝置的塔底壓力控制在0.12MPa左右，塔底溫度控制在123℃左右，塔頂回流流量為34~38t-h-1，塔底蒸汽消耗量為167t-h-1。

上一篇：工業(yè)用蒸汽增壓改造方案分享下一篇：高溫冷凝水排放使用哪些蒸汽疏水閥？

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/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 )

[ BEHAVIOR ] Run Closure @app_init [ RunTime:0.000014s ]
[ CACHE ] INIT File
[ BEHAVIOR ] Run \addons\alioss\Alioss @app_init [ RunTime:0.000429s ]
[ BEHAVIOR ] Run \addons\cms\Cms @app_init [ RunTime:0.000118s ]
[ BEHAVIOR ] Run Closure @app_init [ RunTime:0.000138s ]
[ BEHAVIOR ] Run app\common\behavior\Common @app_init [ RunTime:0.000134s ]
[ LANG ] /data/user/htdocs/thinkphp/lang/zh-cn.php
[ BEHAVIOR ] Run app\common\behavior\Common @app_dispatch [ RunTime:0.000015s ]
[ ROUTE ] array ( 'type' => 'method', 'method' => array ( 0 => '\\think\\addons\\Route', 1 => 'execute', ), 'var' => array ( 'addon' => 'cms', 'controller' => 'archives', 'action' => 'index', ), )
[ HEADER ] array ( 'host' => 'www.pazkb.com', 'user-agent' => 'Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko', 'referer' => 'http://www.baidu.com', 'cookie' => 't=92d7540e476b153862b4ea2356ede7b3; r=8148', 'accept-language' => 'zh-CN,zh', 'accept-encoding' => 'gzip, deflate', 'accept' => 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', 'content-type' => 'application/x-www-form-urlencoded; Charset=UTF-8', 'connection' => 'Keep-Alive', 'content-length' => '', )
[ PARAM ] array ( 'catename' => 'questions', 'id' => '300', )
[ RUN ] think\addons\Route->execute[ /data/user/htdocs/vendor/karsonzhang/fastadmin-addons/src/addons/Route.php ]
[ LANG ] /data/user/htdocs/public/../application/common/lang/zh-cn/addon.php
[ BEHAVIOR ] Run app\common\behavior\Common @addon_begin [ RunTime:0.000262s ]
[ LANG ] /data/user/htdocs/addons/cms/lang/zh-cn.php
[ BEHAVIOR ] Run \addons\alioss\Alioss @upload_config_init [ RunTime:0.000098s ]
[ DB ] INIT mysql
[ VIEW ] /data/user/htdocs/addons/cms/view/theme/show_news.html [ array ( 0 => 'config', 1 => 'user', 2 => 'site', 3 => '__CHANNEL__', 4 => 'isWechat', 5 => '__ARCHIVES__', 6 => '__MODEL__', ) ]
[ SESSION ] INIT array ( 'id' => '', 'var_session_id' => '', 'prefix' => 'think', 'type' => '', 'auto_start' => true, )
[ BEHAVIOR ] Run \addons\cms\Cms @view_filter [ RunTime:0.000120s ]