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空壓機節電改造方案及效益

日期:2008-04-18

  一、空壓機節電改造的可行性

  空壓機在使用過程中的耗能是有目共睹的,北京中天節能公司依據變頻原理研制的中天高壓風機凯发k8官网app可對所有馬達驅動的空壓機進行節電改造總體節電效果顯著,節電率達20~50%。

  現以北京中天節能公司為某有限公司的實際改造為例說明如下:

  電業公司目前有4條全自動生產線,另有注塑機80LAITAI,SUOXUDEYASUOKONGQIYOUYIZUYASUOJIZUTIGONG。GAICHANGGONGQIXITONGGONGYOU380VYASUOJISITAI,QIZHONGLIANGTAI37KWSHIZHONGGONGZUO,LING55KWHE4ꩵ5KWGENJUGONGQIQINGKUANGZAIBUTONGDESHIJIANDUANNEITOURUSHIYONG。YOUYUYASUOJIZAISHE💜JISHANGDEBUZUJISHENGCHANGUOCHENGZHONGBUQUEDINGYINSU,CIKONGQIYASUOXITONGCUNZAIRUXIAQUEXIAN:

  LANGFEIDIANNENG。SHENGCHANXIANSHANGYASUOKONGQIGONGZUOYALIYAOQIUWEI3kgf/cm2,SHUQIZONGGUANSHANGYALIBAOCHIZAI3.2kgf/cm2JIAOHESHI。YOUYUKONGQIBUKENENGHENGDING,SHIJISHANG,LIANGTAI37KWKONGYAJIYUNXINGJIBENKEMANZUYAOQIU,SANTAIKONGYAJIYUNXING,ZECHUXIANJIAOPINFANDEPAIKONGFANGQIXIANXIANG,LANGFEIDIANNENGJIAOWEIYANZHONG。ER🌃QIEXITONGYALIJINGCHANGZAI3kgf/cm2-4kgf/cm2DAFANWEIBODONG,YIDING🌼CHENGDUSHANGYINGXIANGMOUXIEGONGXUDECHANPINZHILIANG。

  ZAOYINDA。KONGQIYASUOJIZIDONGPAIKONGFANGQISHIZAOYINJIDA,ZAOCHENGHUANJINGWURAN。

  DIANWANG🍨CHONGJIDA。YOUYUSANTAIKONGYAJIJUNWEIGONGPINQIDONG、YUNXING,🤡JIQIDEQIDONGDIANLIUZUIGAODADAO630AYISHANG,DUIDIANWANGZAOCHENGCHONGJI。

  GONGQILIANGBODONG。YOUYUXITONGWUFAZIDONGDIAOJIEGONGQILIANG,GONGQILIANGDEBODONGDUICHANPINDEZHILIANGYOUYIDINGYINGXIANG。

  綜上所述,可運用空壓機節能系統對現有空氣壓縮系統進行技術改造,利用PID控制變頻技術建立恒壓GONGQIXITONG,CONGERDADAOJIEDIAN、JIANSHAOZAOYIN、JIANGDISHEBEIMOSUN、JIANSHAODUIDIANWANGCHONGJI、TIGAOGONGLVYINSU、WENDINGCHANPINZHILIANGDENGXIAOGUO。

  空氣壓縮系統節電改造原理

  1、節電原理簡介

  節能控制器采用變頻技術JIZUIXINPIDKONGZHIJISHU,LIYONGYALICHUANGANQIXINHAOJIYOUGUANDIANQIKONGZHIXINHAO,GENJUSHEDINGDEYASUOQITIYALIZHIKONGZHIKONGYAJIMADAZHUANSU,JIANGQIYAWEICHIZAISUOXUDEYALIZHISHANG,JIANGPINGSHIBUBIXIAOHAODE♓NENGLIANGJIESHENGXIALAI,CONGERDADAOJIEDIANDEMUDE。

  XITONGCAIYONGLIANXUDECHENGKONG,BUCUNZAIPINFANQIDONGSHIDEDADIANLIUCHONGJIXIANXIANG,KEYOUXIAOBAOHUDIANWANG。

  2、改造要求

  XIANCHANGFANGGONGQIXITONGGONGYOUYASUOJISITAI,QIZHONGLIANGTAI37KWSHIZHONGGONGZUO,LING55KWHE45KWGENJUGONGQIQINGKUANGZAIBUTONGDESHIJIANDUANNEITOURUSHIYONG。CHANGFANGYAOQIU,KONGYAJIGONGQICAIYONGHENGDINGYALIGONGQI,GONGQIQIYAFANWEIWEI0~1MPa;CHULIANGTAI37KWKONGYAJIQUANPIN(GONGPIN)GONGZUOWAI,LINGWAI55KWJI45KWKEQIE🍌HUANTOURUGONGZUO,QIYUNXINGPINLVGENJUSUOXUQIYASHOUKONGYUNXING。

  3、控制方式

  KONGZHIXITONGGONGZUOYUANLITUXIANGJIANXIATU。

  由圖可知,納入系統運行的有1臺55KW空氣壓縮機(1#泵),1臺45KW壓縮機(2#泵),2臺37KW壓縮機(3#,4#泵)。其中兩臺37KW工頻運行,不能調速,另兩臺由變頻器調速。根據該廠空壓機的具體情況,電機驅動設備變頻器XUANYONG55KWBIANPINQI,KESHIYING55KWHE45KWLIANGTAIKONGYAJISHIYONG。

  為實現輸氣管道上的恒壓供氣,在輸氣總管上安裝了一個壓力變送器,將管網里的壓力變換成4~20mA信號送到智能型自整定PID調節器。PID調節器將其輸入的4~20mA信號變成0~10VDC的電信號,控制變頻器的輸出頻率及輸出電壓,從而改變電機DEZHUANSU。XITONGGONGZUOSHI,3#、4#BENGGONGPINYUNXING,RUGUANWANGYALI💜BUGOU,BIANPINQIKONGZHI2#BENGKAISHIGONGZUO,RUOGONGZUODAOGONGPINZHUANGTAISHIGUANWANGSHANGYALIRENGBUGOU,BIANPINQIZIDONGQIEHUANDAO1#BENG,SHIQIBIANPINYUNXINGZHIZHIGUANWANGSUOXUYALI;DANGGUANWANGYALIGUOGAOSHI,1#BENGTINGZHIYUNXING,BIANPINQIZIDONGQIEHUANDAO2#BENG,RUORENGGUOGAO,ZE2#BENGTINGZHIGONGZUO,JIN3#,4#GONGPINYUNXINGJIKE。CONGERSHIZONGGUANDEQIYAJIBENHENGDING,DADAOHENGYAGONGQIDEMUDE。

  DANGYASUOKONGQIDEXIAOHAOCHUXIANJIAODADEBIANHUA,XITONGYALIDADAOSHEDINGDEZUIDAZHIHUOZUIXIAOZHISHI,ZHUANGYUSHUQIZONGGUANSHANGDIANJIEDIANYALIBIAOJIANGJIANCEDAODEXINHAOSONG🧔RULUOJIQIEHUANKONGZHIQI,ZUOWEIXITONGTOURU/QIECHUGONGPINJIZUDEYIGEZHONGYAOTIAOJIAN(DANBUSHIWEIYIDE)。DANGXITONGXUYAOTOURUGONGPINJIZUSHI,XITONGSHOUXIANZONGHEPANDUANNAYITAIJIZUCHUYUZHUNBEIJIUXUZHUANGTAI(STANBY),RANHOUFACHUBAOJINGXINHAO,JINGYANSHIHOUZEZHIXINGQIDONGMINGLING;YALIGUODAERXUTINGJISHI,BUBIRENGONGGANRAO,XITONGZHIJIEFACHUTINGJIZHILING,SHIJIZUTINGJI。

  綜合效益分析

  中天高壓風機節能控制器可最大程度上降低空壓機的耗電量,由于實現了無級調速控制,空壓機的耗電量就與氣動設備使用情況密切相關了。經加裝空壓機節能控制器進行節電改造后,我們預計總體上的節電效果一般可達到20%~50%,YOUXIEKONGYAJIKEDADAOGENGGAODESHUIPING。

  這家公司空氣壓縮機組經改造后,經實測達到如下效果:

  節省電能:恒壓供氣系統投入運行后,可使貯氣罐的氣壓保持在設定值的2.5%范圍內,將自動排空而損失的電能節省下來,經實測,節電率達到40%左右,TONGSHIGONGLVYINZITIGAOZHICOSф>0.95,JIANSHAOLEWUGONGSUNHAO;

  降低噪音,減少環境污染:HENGYAGONGQIXITONGYOUYUSHIXIANLEBIANPINKONGZHI,JIBENSHANGXIAOCHUPAIKONGFANGQIDEQINGKUANG,CONGERGAISHANLEZAOYINDUIHUANJINGDEWURAN;

  延長機械部件使用壽命:使用空壓機節電系統后,空壓機大多數時間運行在工頻之下,能明顯減少機械部件的磨損,延長機器壽命,JIANSHAOWEIXIUFEIYONGHESUODUANWEIXIUSHIJIAN;

  實現了軟起動:JIANSHAOJIZUQIDONGDIANLIUDUIDIANWANGDECHONGJI,TONGSHIKELINGHUODIZHONGFUDUOCIQIDONG,BIMIANLEZIOUJIANGYAQIDONGZAIZHEFANGMIANDEBUZU;

  實現恒壓供氣:XITONGTOURUYUNXINGHOU,TIGAOLEGONGQIKEKAOXING🗹HEFUZAIBIANHUADEDIAOJIENENGLI,BAOZHENGLEHENGDINGDE🌼GONGQIYALI,JINYIBUBAOZHENGLECHANPINZHILIANGDEWENDINGXING;

  運行可靠,故障率幾乎為零:XITONGSHEYOUGUOZAI、SHIYA、QIANYA、GUOLIU、QUEXIANGDENGBAOHUGONGNENG,YUNXINGKEKAO;

  操作簡易,發生故障不影響生產:節能器FASHENGGUZHANGHOU,KEZIDONGTINGJIBINGFACHUGUZHANGXINHAO,TONGSHI,KEZHUANHUANDAOSHIDIANSHIKONGYAJIZHENGCHANGYUNXING,BUYINGXIANGSHENGCHAN。