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制冷截止閥為什么要低進高出?

2017-12-14  來自: 黑龍江京閥管道配件有限公司 瀏覽次數:1101

截止閥又稱截門閥,屬于強制密封式閥門,是截斷類閥門的一種。按連接方式分為三種:法蘭連接、絲扣連接、焊接連接。哈爾濱焊接閥門

WOGUOFAMEN“SANHUAGEI”CENGGUIDING,JIEZHIFADELIUXIANG,YILVCAIYONGZISHANGERXIA,SUOYIANZHUANGSHIYOUFANGXIANGXING。

這種類型的截流截哈爾濱截止閥止閥閥門非常適合作為切斷或調節以及節流用。由于該哈爾濱截止閥類閥門的閥桿開啟或關閉行程相對較短,而且具有非常可靠的切斷功能,又由于閥座通口的變化與閥瓣的行程成正比例關系,非常適合于對流量的調節。

哈爾濱焊接閥門

JIEZHIFASHEJIWEIDIJINGAOCHU,MUDESHISHILIUDONGZULIXIAO,ZAIKAIQIFAMENSHISHENGLI。TONGSHIFAMENGUANBISHI,FAKEHEFAGAIJIANDEDIANLIAOYUFAGANZHOUWEIDETIANLIAOBUSHOULI,BUZHICHANGSHIJIANSHOUDAOJIEZHIYALIHEWENDUDEZUOYONGKEYANCHANGSHIYONGSHOUMING,JIANSHAOXIELOUDEJILV。LINGWAIZHEYANGHUANKEZAIFAMENGUANBIDEZHUANGTAIXIAGENGHUANHUOZENGTIANTIANLIAO,BIANYUWEIXIU。 

HENDUORENRENWEI,JIEZHIFADOUSHIDIJINGAOCHU,QISHIBURAN。YIBANQINGKUANGXIAJIEZHIFADOUSHIDIJINGAOCHU,RANERYEYOUYIXIETESHUQINGKUANGJIEZHIFASHIGAOJINDICHU:

1、ZHIJINGDAYU100mmDEGAOYAJIEZHIFA

YOUYUDAZHIJINGFAMENMIFENGXINGNENGCHA,CAIYONGZHEZHONGFANGFAJIEZHIFAZAIGUANBIZHUANGTAIXIA,JIEZHIYALIZUOYONGZAIFABANSHANGFANG,YIZENGJIAFAMENDEMIFENGXING。

2、旁路管道上串聯的兩個截止閥,第二個截止閥要求哈爾濱截止閥“高進低出”

WEIBAOZHENGYIGEJIANXIUZHOUQINEIFAMENDEYANMIXING,JINGCHANGQIBICAOZUODEFAMENYAOQIUZHUANGSHELIANGGECHUANLIANDEJIEZHIFA。DUIYUPANGLUXITONGERYAN,CIPANGLUDEZHUANGSHEZUOYONGYOU:

①PINGHENGZHUGUANDAOFAMENQIANHOUYALI,SHIKAIQIFANGBIANSHENGLI,JIANXIAOZHUGUANDAOFAMENDEMOSUN;

②QIDONGGUOCHENGZHONGXIAOLIULIANGNUANGUAN;

③主給水管道上,控制給水流量以控制鍋爐升壓速度進行鍋爐水壓試驗。按介質流動方向旁路截止閥分別為一次閥和二次閥,機組正常運行時一次閥和二次閥是關閉的,二者都和介質直接接觸。為防止二次閥閥殼和閥蓋間的墊料與閥桿周圍的填料長時間受到介質和溫度作用,以及在運行過程可以更換閥門的填料,二哈爾濱截止閥次閥要求的安裝方向“高進低出”。

3、FANGKONGJIEZHIFA

FANGKONGJIEZHIFAJINZAIGUOLUQIDONGSHANGSHUIGUOCHENGZHONGSHIYONG,QIBIPINLVXIAO,DANCHANGCHANGYOUYUMIFENGBUYANERZAOCHENGGONGZHISUNSHI,WEICIYOUDEQIYEWEILETIGAOYANMIXINGJIANGCILEIJIEZHIFAANZHUANGFANGXIANG“GAOJINDICHU”。

4、DIANCISUDUANFA

電磁速斷閥的功能是快速關閉,迅速切斷燃油供應。電磁速斷閥的結構和截止閥的結構相似,如果電磁速斷閥也是工質從下部進入,上哈爾濱截止閥部流出,則燃油作用在電磁速斷閥閥瓣下部的力很大,而電磁速斷閥的重錘遠小于它。因此,如果工質從下部進入速斷閥,則因重錘產生力矩小于燃油壓力產生的力矩,當速斷閥動作時不能將燃油切斷,因而達不到預期的目的。如果工質從速斷閥上部進入,則由于速斷閥一旦動作后,閥后壓力迅速降低,燃油作用在閥瓣下部的力很快降為零,而燃油作用在閥瓣上的力和重錘、哈爾濱截止閥杠桿的重力所形成的力。

YIBANDAKOUJINGHEGAOYAZHUANGTAIXIACAIYONGDIJINGAOCHUDEHUAGUANBIFAMENBIJIAOKUNNAN,RUGUOZAIGAOYADAKOUJINGZHUANGTAIXIACAIYONGDIJINGAOCHU,FAGANCHANGQISHOUDAOSHUIYALIRONGYIBIANXINGWANQU,YINGXIANGFAMENDEANQUANXINGHEMIFENGXING;XUANYONGGAOJINDICHUDEHUADUIFAGANZHIJINGJIUKEYIXIAODIAN,DUIYUCHANGJIAHESHIYONGZHELAISHUOYEHUIJIEYUEDIANCHENGBEN。

LIANXIREN:CHENJINGLI

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