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技術知識

閘閥的類型和作用

發布日期:2016-03-28

閘閥是隔離類閥門中最常見的閥門類型之一。在每個精煉廠、化工廠、電站和工業企業生產設備中都可以找到這類閥門,其制造尺寸范圍可以從DN6? 4200。選用閘閥的主要目的是截斷流體。正是由于這個原因,閘閥通常被稱為“截斷”閥或“阻斷”閥。 閘閥一般應用于全開或全關操作的工作場合。當全開時,通過閘閥的壓力降非常小;當全關時,具有很好的壓力密封性能。由于閘板與閥座環的配合,當閘閥關閉時,幾乎沒有泄漏發生。然而,在背壓(一般不小于0. 34bar,lbar=105Pa)非常低的情況下,可能會發生某些泄漏。閘閥的另一個優點是通常開啟和關閉很緩慢,這一特性可以防止流體水錘效應對管道系統的損壞。

ZAIZHONGDUOTONGYONGFAMENLEIXINGZHONG,ZHIYOUQUANTONGJINGQIUFANENGGOUYUZHAFADELIULIANGTEXINGXIANGDANG。DUICHENGSHEJIJIEGOUHEDUIDENGMIFENGSHIDEZHAFAKEYICONGLIANGGEFANGXIANGZHONGDERENHEYIGEFANGXIANGSHANGJIEDUANJIEZHILIU。ZHAFAHUANKEYIXUANYONGGEZHONGCAILIAOZHIZAO,KEYICONGWUJINDIANHUOJIASHANGZHAODAODJV15DEXIAOXINGHUANGTONGZHAFA,YEKECONGHEDIANZHANHE DAOZHONGZHAODAOTESHUHEJINZHAFA。ZHAFADEZHUYAOJUXIANXINGZAIYUBUNENGSHIYONGYUJIELIUXINGGONGKUANG。DANGZHAFAYINGYONGYUJIELIUXINGGONGKUANGSHI,LIUTIZAIFAZUOFUJINCHANGCHANGJUYOUHENGAODELIUSU,ZHEYANGHUIYINQIQINSHI。TONGYANGZAIBUFENKAIQIZHUANGTAI,ZHABANHUIZAIJIEZHIDECHONGJIXIACHUXIANBAIDONG,ZHEYANGHUIZAOCHENGMIFENGFUSUNHUAI。TONGCHANG,ZHAFABIJIEZHIFAGENGYIYUCHANSHENGFAZUOHEZHABANMIFENGMIANDEMOSUN,ERZHEZHONGMOSUNDEXIUFU,HENNANTONGGUOYANMOHEPAOGUANGDESHOUDUANLAIWANCHENG。

YOUYUZHAFADEJIEGOUTEDIANFEICHANGSHIHEYUDAXINGHUAZHUANGZHI,SUOYIQIYINGYONGFANWEIBUDUANKUODA,BINGXIANGZHUGAOWENGAOYAFAZHAN。ZHAFAZUIDAKOUJINGYIDADM200,ZAIHECHENGANZHUANGZHIZHONGYIDALIANGSHIYONG PJV320DEGAOYAZHAFA,YONGYUSHIYOU、TIANRANQIZHANCAIDEJINGKOUDEZHAFAGONGZUOYALIGAODA138MPa。ZHIZAOGAOWENGAOYAZHAFADEGUANJIAN,SHIJIEJUEYOUYUWENDUBIANHUAYINQIZHABANXIESIDEWENTI,YIJIBAOZHENGQIKEKAODEMIFENGXINGNENG。WEICI,YAOZAIZHABANHEFAZUOMIFENGJIEGOUSHANGJINXINGYANJIUGAIJIN。DANXINGFAZUOHEDANXINGFUDONGFAZUOYIKAISHIDEDAOYINGYONG,SHIZHAFANENGGOUSHIXIANJINKOUMIFENG、CHUKOUMIFENGHUOJINCHUKOUSHUANGZHONGMIFENG。MUQIANZHAFASHIYONGSHOUMINGHUANNANYIYUQITAFALEIXIANGBI,RUHETIGAOSHIYONGSHOUMING,YESHIZHAFAFAZHANDEZHONGYAOKETI。

ZHAFAYOUJIAOZHABANFA,ZHUYAOYOUFATI、FAGAI、ZHABAN、FAGAN、FAZUOHEMIFENGTIANLIAODENGBUFENZUCHENG,RUTU2-1SUOSHI。

ZHAFASHIQIBIJIAN(ZHABAN),YOUFAGANDAIDONG,YANFAZUO (MIFENGMIAN)ZUOZHIXIANSHENGJIANGYUNDONGDEFAMEN。YIBAN,ZHAFABUKEYONGLAIDIAOJIELIULIANG,ZHINENGZUOWEIJIEDUANZHUANGZHISHIYONG,YAOMEWANQUANKAIQI,YAOMEWANQUANGUANBI。ZAIGEZHONGLEIXINGDEFAMENZHONG,ZHAFASHIYINGYONGZUIGUANGFANDEYIZHONG。JISHIYONGYUCHANGWENHECHANGYAGONGKUANG,YESHIYONG YUGAOWENJIDIWENHEGAOYAJIDIYAGONGKUANG,BINGKEYITONGGUOXUANYONGBUTONGDECAIZHI,SHIYONGYUGEZHONGBUTONGDEJIEZHIZHONG。

ZHAFAJUYOURUXIAYOUDIAN:

①LIUTIZULIXIAO。ZHAFAFATINEIBUJIEZHITONGDAOSHIZHITONGDE,JIEZHILIUJINGZHAFASHIBUGAIBIANQILIUDONGFANGXIANG,YINERLIUTIZULIJIAOXIAO。

②JIEGOUCHANGDU(YUGUANDAOXIANGLIANJIEDELIANGDUANMIANJIANDEJULI)JIAOXIAO。YOUYUZHABANCHENGYUANPANZHUANG,SHICHUIZHIZHIYUFATINEIDE,ERJIEZHIFAFABAN(YECHENGYUANPANZHUANG)SHIPINGXINGZHIYUFATINEIDE,YINERYUJIEZHIFAXIANGBI,QIJIEGOUCHANGDUJIAOXIAO。RUPN16、DJV150DEJIEZHIFA,QIJIEGOUCHANGDUWEI480mm,ERTONGYICAN SHUDEZHAFAJIEGOUCHANGDUJINWEI350mm。

③QIBIJIAOSHENGLI。QIBISHIZHABANYUNDONGFANGXIANGYUJIEZHILIUDONGFANGXIANGXIANGCHUIZHI,ERJIEZHIFAFABANTONGCHANGZAIGUANBISHIDEYUNDONGFANGXIANGYUFAZUOCHUJIEZHILIUDONGFANGXIANGXIANGFAN,YINERBIXUKEFUJIEZHIDEZUOYONGLI。SUOYIYUJIEZHIFAXIANGBI,ZHAFADEQIBIJIAOWEISHENGLI。

④JIEZHILIUDONGFANGXIANGBUSHOUXIANZHI。JIEZHIKECONGZHAFALIANGCERENYIFANGXIANGLIUGUOZHAFA,JUNNENGDADAOJIETONGHUOJIEDUANDEMUDE。BIANYUANZHUANG,SHIYONGYUJIEZHIDELIUDONGFANGXIANGKENENGGAIBIANDEGUANLUZHONG。

⑤QUANKAISHI,MIFENGMIANSHOUGONGZUOJIEZHIDECHONGSHIHENXIAO。

⑥XINGTIJIEGOUBIJIAOJIANDAN,ZHIZAOGONGYIXINGJIAOHAO。

TONGSHIZHAFAYECUNZAIYIXIEQUEDIANRUXIA:

①MIFENGMIANYICHANSHENGCASHANG。QIBISHIZHABANYUFAZUOXIANGJIECHUDELIANGMIFENGMIANZHIJIANYOUXIANGDUIHUADONG,ZAIJIEZHITUILIZUOYONGXIAYICHANSHENGCASHANG,CONGERPOHUAIMIFENGXINGNENG,YINGXIANGSHIYONGSHOUMING。

②LINGJIANJIAODUO,JIEGOUJIAOFUZA,ZHIZAOYUWEIXIUDOUJIAOWEIKUNNAN,YUJIEZHIFAXIANGBICHENGBENJIAOGAO。

③WAIXINGCHICUNHEKAIQIGAODUDOUJIAODA,SUOXUANZHUANGDEKONGJIANYIJIAODA。

④YIBANZHAFADOUYOULIANGGEMIFENGFU,GEIJIAGONG、YANMOHEWEIXIUZENGJIALEYIXIEKUNNAN。

⑤CAOZUOXINGCHENGDA,QIBISHIJIANCHANG。YOUYUKAIQISHIXUJIANGZHABANWANQUANTISHENGDAOFAZUOTONGDAOSHANGFANG,GUANBISHIYOUXUJIANGZHABANQUANBULUOXIAZUDUANFAZUOTONGDAO,SUOYIZHABANDEQIBIXINGCHENGHENDA,QIBISHIJIANJIAOCHANG。

ZHAFAYOUGEZHONGBUTONGDEJIEGOUXINGSHI,QIZHUYAOQUBIESHISUOCAIYONGDEMIFENGYUANJIANJIEGOULEIXINGBUTONG。GENJUMIFENGYUANJIANDEJIEGOU, CHANGBAZHAFAFENCHENGJIZHONGBUTONGDELEIXING。LIRU,GENJUJIEGOULEIXINGFENLEI,YOUPINGXINGSHIZHAFAHEXIESHIZHAFA;GENJUFAGANDEJIEGOUHUANKEFENWEIMINGGAN(SHENGJIANGGAN)ZHAFA(TU2-2)HEANGAN(XUANZHUANGAN)ZHAFA(TU2-3)。

(1) ANFAGANFENLEI

FAGANSHIZHAFADECAOZUOBUJIAN,QIZUOYONGSHIJIANGQIBILICHUANDIDAOQIBIJIANSHANG。ANFAGANJIEGOULEIXINGFENLEI,YOUMINGGANZHAFAYUAN GANZHAFALIANGZHONG。

①MINGGANZHAFAQIFAGANTIXINGLUOWENZHIYUFATIZHIWAI, WEIYUFAGANSHANGBU,TONGGUOXUANZHUANFAGANLUOMU,SHIFAGANDAIDONGZHABANTONGBUSHANGSHENGYUXIAJIANGLAISHIXIANFAMENDEQIBI,YINCIRONGYISHIBIEFAMENDEQIBIZHUANGTAI,BIMIANWUCAOZUO。YOUYUFAGANLUOMUZAITIQIANGWAI,YOULIYURUNHUA,TONGSHIQIBIZHUANGTAIZHIGUANMINGXIAN,YINERYINGYONG GUANGFAN。DANZAIELIEHUANJINGZHONG,FAGANDEWAILULUOWENYISHOUSUNHAIHEFUSHI,SHENZHIYINGXIANGCAOZUO。TADEQUEDIANSHIFAMENKAIQIHOUDEGAODUDA,TONGCHANGZAIFAMENYUANGAODUDEJICHUSHANGYAOJIAYIGEXINGCHENG,YINERXUYAOHENDADECAOZUOKONGJIAN。

②ANGANZHAFAFAGANLUOMUZHIYUFATINEIBU,CHANGBEIGUDINGZAIZHABANSHANG,TONGGUOFAGANDEXUANZHUANSHIFAGANLUOMUDAIDONGZHABANZUOSHENGJIANGYUNDONGLAIWANCHENGQIBI。YOUYUCHUANDONGYONGDETIXINGLUOWENWEIYUFATINEIBU,SUIBUSHOUWAIJIEHUANJINGYINGXIANG,DANYISHOUJIEZHIFUSHIHEWUFAJINXINGRUNHUA,KAIQICHENGDUBUNENGZHIJIEGUANCHA,XULINGSHEZHISHIZHUANG ZHI。DANTADEFAGANBUZUOSHENGJIANGYUNDONG,SUOXUCAOZUOKONGJIANXIAO,GUSHIYONGYUWEIZHIYOUXIANGUANLUMIJIDECHANGHE,RUCHUANBO、DIXIAGUAN DAODENG。

(2) ANJIEGOULEIXINGFENLEI

ZHAFADEJIEGOULEIXINGTONGCHANGZHIDESHIZHABANDELEIXING,ZHABANDELEIXINGFENWEIXIESHIHEPINGXINGSHILIANGZHONG。JIZHABANWEIXIESHIDECHENGWEIXIESHIZHAFA,ZHABANWEIPINGXINGSHIDEJIWEIPINGBANZHAFA。

 

 

 

 

 

 

(1)FATIYUFAGAIJIEGOU

YOUYUZHAFATONGCHANGYINGYONGYUDAKOUJINGGUANDAOSHANG,SUOYIFATIYUFAGAIDUOCAIYONGFALANLIANJIE。FATIYAORONGNACHUIZHIFANGZHIBINGZUOSHENGJIANGYUNDONGDEYUANPANZHUANGZHABAN,YINERFATINEIQIANGGAODUJIAODA。FA TIJIEMIANDEXINGZHUANGZHUYAOQUJUEYUGONGCHENGYALI,RUDIYAZHAFAFA

TIKESHEJICHENGBIANPINGZHUANGDE,YISUOXIAOQIJIEGOUCHANGDU。GAO、ZHONGYAZHAFAFATIDUOSHEJICHENGYUANXINGHUOLABAKOUXING,YITIGAOQICHENGYANENGLI,JIANXIAOBIHOU。FATIXINGZHUANGHUANYUFATICAILIAOJIZHIZAOGONGYIYOUGUAN。FATIYUFAGAIDELIANJIEJIEGOUTONGCHANGYOU5ZHONG:LUOWENSHIFAGAI、HUOJIETOUSHIFAGAI、LUOSHUANLIANJIEFAGAI、HANJIEFAGAIHEYALIZIMIFENGFAGAI。

①LUOWENSHIFAGAISHIZUIJIANDANDESHEJIJIEGOU。TONGCHANGZHIYONGYUBUXUYAOJINGCHANGCHAIXIEDEXIAOKOUJINGFAMEN,CHENGBENJIAODIDETONGHEJINFAMENDENG。

②HUOJIETOUSHIFAGAIZHUYAOYONGYUTONGHEJINLEIFAMEN,DANSHIHUOJIETOUJIEGOUGENGBIANYUWEIXIUHEWEIHUCHAIXIE。

③LUOSHUANLIANJIEFAGAISHIZUICHANGYONGDELIANJIEJIEGOU,DANGJINGONGYEYONGZHAFADADUOSHUCAIYONGGAIJIEGOU。YULUOWENSHIHEHUOJIETOUSHILIANJIEJIEGOUBUTONGDESHI,LUOSHUANLIANJIEFAGAIJIEGOUZHONGFATIHEFAGAIZHIJIANDELIANJIEXUYAODIANPIANMIFENG。

④HANJIEFAGAIDUIYUGUIGE1/2?2in (lin = 0.0254m),BANGJIJIEYUClass800?2500ZHIJIAN,BUXUYAOCHAIXIEDEJINCOUXINGGANGZHIFAMENLAISHUO,HANJIEFAGAISHIZUICHANGYONGDEJIEGOU。YUYALIMIFENGFAGAIXIANGSIDESHI,HANJIEFAGAIFAMENBILUOSHUANLIANJIEFAGAIFAMENDEZHONGLIANGYAOQING。

⑤YALIZIMIFENGFAGAISHIKAOFATINEIJIEZHIYALIZUOYONGYUFATIYUFAGAIJIANDEJINSHUMIFENGHUANHUOROUXINGSHIMOMIFENGHUANSHANGSHIXIANMIFENG。YALIZIMIFENGFAMENFAQIANGNEIDEYALIYUEGAO,ZUOYONGYUMIFENGHUANSHANGDELIJIUYUEDA,YEJIUYUERONGYISHIXIANMIFENG。YALIZIMIFENGJIEGOUDEFAMEN,ZHONGLIANGYIBANYAOQINGYULUOSHUANLIANJIEFAGAIJIEGOU。

(2) FAGANJIEGOU

ZHAFAFAGANJIEGOUZHUYAOYOUSANZHONGBUTONGXINGSHI:XIALUOWENSHENGJIANGSHIFAGAN(ISRS)、FEISHENGJIANGSHIFAGAN(ANGANNRS)HESHANGLUOWENDAIZHIJIA(MINGGANOS&Y)。

①XIALUOWENSHENGJIANGSHIFAGANSHIDANGJINTONGHEJINLEIFAMENZUICHANGYONGDEFAGANJIEGOU。YOUYUFAGANLUOWENLUOLUYUJIEZHIZHONG,CUNZAIBEIFUSHIDEKENENG,HUIDAOZHIFAGANYUZHABANSHIXIAO。YINCI,GAIJIEGOUYIBANBUSHIYONGYUGUANJIANDEGONGYEYONGTUFAMEN。

②FEISHENGJIANGSHIFAGANYINWEIFAMENKAIQISHIFAGANBUXUYAOSHENGQI,SUOYICIJIEGOUSHIZAISHOULUNSHANGFANGDECHUIZHIKONGJIANSHOUXIANZHISHISUOCAIYONGDETESHULEIXING。DANGJIN,DADUOSHUYOUZHUTIEHUOTONGHEJINCAIZHIZHIZAODEFAMENCAIYONGCIZHONGFAGANJIEGOU。DANGCAOZUOKONGJIANSHOUXIANSHI (LIRUDIXIACAOZUO),CAISHIYONGGANGZHIFEISHENGJIANGSHIFAGANFAMEN

③SHANGLUOWENDAIZHIJIASHIFAGANDUOYONGYUGONGYE。YOUQISHIZAIFUSHIXINGGONGKUANGZHONG,YINWEIFAGANLUOWENJIBENBUJIECHUJIEZHI,YEJIUYUANLILEQIANZAIDEFUSHIWEIHAI。YUQITALIANGZHONGFAGANJIEGOUBUTONGDESHI,CIZHONGJIEGOUZHONG,SHOULUNSHIYUFAMENZHIJIADINGBUDEFAGANLUOMUXIANGLIAN,ERBUSHIZHIJIEYUFAGANBENSHENXIANGLIAN,YINCIKAIQISHISHOULUNBUHUISUIZHUSHANGSHENG。 

(3) FAZUOJIEGOU

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ZHENGTISHIFAZUOYUFATISHIYIGEZHENGTI,DANGFATIYOUNAISHICAILIAOZHICHENGSHI,ZHENGTISHIFAZUOKEYIZHIJIEYOUJITICAILIAOJIAGONGERCHENG [TU2-4 (a)],YEKEYITONGTANSUGANGLEIFAMENYIYANG,ZAIJITISHANGDUIHANSHIYONGYUBUTONGJIEZHIDECAILIAOJIAGONGERCHENG[TU2-4(b) ]。FAZUOQUANZEKEYIXUANYONGBUTONGYUFATICAILIAODEQITASUOXUCAILIAOZHICHENG,RANHOULIANJIEDAOFATISHANGXIANGYINGDEFAZUOCAONEI。DANZHIDEZHUYIDESHI,DANGFAMENYINGYONGYUWENDUBIANHUAJIAODADEGONGKUANGSHI, YINGJINKENENGXUANYONGXIANZHANGXISHUYUFATICAILIAOXIANGDANGDECAIZHIZHIZAOFAZUOQUAN,DANGFAZUOQUANCAIYONGHANJIEDEGONGYIYUFATILIANJIESHI,HUANXUYAOJINYIBUKAOLVLIANGZHONGCAILIAODEHANJIEXING。

FAZUOQUANYUFATIDELIANJIEZHUYAOYOU:ZHANGJIEXIANGQIAN、LUOWENHEHANJIESANZHONGXINGSHI。QIZHONGBIJIAOCHANGYONGDEXINGSHIRUTU2-4(c) ?(h)SUOSHI(ZUOBIANWEIFAZUOQUANJIANTU,YOUBIANWEILIANJIEHOUJIANTU)。

TU2-4 (a)SUOSHISHIZAIFATISHANGZHIJIEJIAGONGCHUMIFENGMIAN。 SHIYONGYUFATIWEINAISHICAILIAODEZHONG、DIYAZHAFA。

TU2-4 (b)SUOSHISHIZAIFATISHANGZHIJIEDUIHANJINSHUCAILIAOZHICHENGMIFENGMIAN。GENJUFAMENSHIYONGGONGKUANG、GONGZUOYALIHEFATICAILIAOYUDUIHANCAILIAODEHANJIEXING,XUANZEHESHIDEDUIHANCAILIAO。

TU2-4 (c)HE(d)SUOSHISHIZHANGJIEDEFAZUO,ZHUYAOSHIYONGYUFATICAILIAOWEIZHUTIELEIFAMEN,FAZUOQUANCAILIAOXUANYONGTONGHEJINHUOBUXIUGANGCAILIAOZHIZAO。ZAIFATISHANGJIAGONGCHUYANWEICAO,JIANGFAZUOQUANXIANGQIANRENYANWEICAO,JIAYASHIFAZUOQUANCHANSHENGSUXINGBIANXINGSHIXIANZHANGJIEJIEHE。DUOSHIYONGYUDIYA、XIAOKOUJINGZHAFA。

TU2-4 (e)SUOSHISHIXIANGQIANLIANJIEDEFAZUO,JIANGTONGHEJINHUOBUXIUGANGZHICHENGDEFAZUOQUANXIANGQIANRUFATIZUOCAOHOU,YONGLUODINGGUDING。YIBANSHIYONGYUDIYADAKOUJINGZHUTIELEIZHAFA。

TU2-4 (f)SUOSHISHIXIANGQIANLIANJIEDEFEIJINSHUFAZUO,BASULIAOHUOXIANGJIAOZHICHENGDE0XINGQUANXIANGQIANRUZHABANDEYANWEICAONEIZHICHENGFAZUO。YIBANSHIYONGYUZHONG、DIYAZHAFA。

TU2-4 (g)SUOSHISHILUOWENLIANJIEDEFAZUO,ZAIFAZUOQUANDEWAIYUANHEFATIDEZUOCAONEIJUNJIAGONGCHULUOWEN,JIANGFAZUOQUANXUANRUFATIJINGU。LUOWENLIANJIESHIFAZUODERECHULIYAOQIUDEYISHIXIAN,ZHUYAOSHIYONGYUDUIFAZUOYINGDUYAOQIUJIAOGAODECHANGHE,TONGCHANGYINGYONGYUGAO、ZHONGYA,KOUJINGZAIDJV400 (NPS16)YIXIADEZHAFA。

MOUXIEYONGHURENWEI,LUOWENFAZUOHUANKEYISHIXIANZHAFAFAZUODEKEGENGHUANXIUFU。

TU2-4 (h)SUOSHISHIHANJIEFAZUO,SHOUXIANZAIFAZUOQUANSHANGDUIHANGEXIBUXIUGANGHUOYINGZHIHEJIN,JIAGONGHOUZHUANGRUFATIZUOCAONEI,ZAIFAZUOQUANWEIBUYUFATIHANJIE。SHIYONGYUGAO、ZHONGYAZHAFA。

(4)SUOJING

ZAIZHAFADECHANPINBIAOZHUNZHONGTONGCHANGDOUGUIDINGLEFAMENDEZUIXIAOLIUDAOZHIJING,DANGSHEJIFAZUOMIFENGMIANCHUDEZHIJINGXIAOYULIANJIEDUANCHUDEZHIJINGCHENGWEITONGJINGSHOUSUO,JI“SUOJING”(TU2-5)。

 

 

SUOJINGFAMENTONGCHANGYINGYONGYUGUANDAOXUYAOJIELIUDEGONGKUANG。CHANPINBIAOZHUNLIYIBANYEGUIDINGLEFAMENJUTISUOJINGGUIGE,ZAIBIAOZHUNMEIYOUGUIDINGCHUJUTISUOJINGSHUJUSHI,TONGCHANGQUBIAOZHUNLIUDAOZHIJINGDE 85%?75%,SUOJINGTONGDAOMUXIANDUIZHONGXINXIANQINGJIAOBUDAYU12°。 CAIYONGSUOJINGXINGSHIKEYIJIANXIAOZHABANDECHICUN,CONGERSHIQICHENGSHOUDEJIEZHIZUOYONGLIJIANGDI,ZHAFADEQIBILIYEXIANGYING、JIANXIAO;ZHEYANG,XIAOCHICUNDEZHABAN、FAGANDENGYEKEYONGYUJIAODATONGJINGDEZHAFA,CONG ERKUODALELINGBUJIANDETONGYONGFANWEI。DANSHICAIYONGSUOJING,HUIZAOCHENGHENDADEYALISUNSHI,HUIZENGJIAFANEILIUTIZULI,YINERTONGDAOSHOUSUOBIBUYITAIDA。CHANGJIANDESUOJINGZHAFADADUOSHIGONGCHENGCHICUNBUDAYUDN300 (NPS12),FAMENGONGCHENGCHICUNDEKONGJINGJIANGDIYIGEGUIGE,GONGCHENGCHICUNDiV350?600 (NPS14?24),GONGCHENGCHICUNDEKONGJINGJIANGDILIANGGEGUIGE,LIRUGONGCHENGCHICUNWEIDiVlOODEFAMEN,FAZUOTONGDAOZHIJINGKESHOUSUODAODN80,GONGCHENGCHICUNYINGBIAODN100(NPS4)XDiV80(NPS3)。

ZAIMOUXIEGONGZUOTIAOJIANXIA(RUSHIYOUXINGYEDESHUYOU、QIGUANXIAN),BUYUNXUCAIYONGSUOJINGFAMEN。ZHEYIFANGMIANSHIWEILEJIANSHAOCHANGSHUGUANXIANDEZULISUNSHI,LINGYIFANGMIANSHIWEILEBIMIANTONGJINGSHOUSUOHOU GEISAOXIANQINGGUANTONGQIUZAOCHENGZHANGAI。

文章關鍵詞:閘閥的類型和作用
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