大发彩票注册

新聞動態   News
最新資訊   New
2018/3/19
SWP-C803-02-23
2018/3/19
SWP-C803-02-23
2018/3/19
SWP-C803-01-23
2018/3/19
SWP-C803-01-23
2018/3/14
SWP-C801-02-23
搜索   Search
你的位置:首頁 > 新聞動態 > 行業新聞

孔板流量計裝反了會怎么樣?

2015-06-24 09:29:31      點擊:
流量和孔板的前后壓差成一定的比例關系(忘了是否是線性),但肯定是差壓越大,流量越大,為了測量準確,才有孔板的倒角,以加大差壓,而孔板裝反,則差壓減小,當然流量顯示就變小了,因流量孔板的內邊是45度的斜刀口,所以也被稱為銳孔板。設置刀口的目的是要讓氣體到孔板處能迅速減壓提高流速然后再迅速釋放,以增大孔板前后的壓差,然后根據此壓差來計算流量,其是用伯努利方程來計算的。在 孔板后會出現一縮脈,此處氣體的流速最大而壓力最小,就是根據縮脈處的壓力和孔板前的壓差來計算。

大发彩票注册DANGZHUANGFANLEHOUJIUBUNENGDADAOXUNSUJIANYAYEJIUSHIKONGBANQIANHOUYACHAHUIJIANXIAO,

ERLIULIANGYUQIANHOU

YACHASHICHENGZHENGBIDE,SUOYIXIANSHIHUIPIANXIAO。

大发彩票注册DANGZHUANGFANLEHOUJIUBUNENGDADAOXUNSUJIANYAYEJIUSHIKONGBANQIANHOUYACHAHUIJIANXIAO,ERLIULIANGYUQIANHOUYACHASHICHENGZHENGBIDE,SUOYIXIANSHIHUIPIANXIAO。 

大发彩票注册BIAOZHUNKONGBANLIULIANGJIYOUNAXIEQUYAFANGSHI?

大发彩票注册BIAOZHUNKONGBANGENJUGUOJIABIAOZHUNBAOKUOJIAOJIEQUYA、FALANQUYA、JINGJUQUYA。

1

、JIAOJIEQUYABAOKUOZHANKONGQUYAHEHUANSHIQUYA,YOULIYUSUODUANZHIGUANDUAN,JINGDUJIAOGAO。QIZHONGZHAN

KONGQUYASHIHEGUANJINGWEI

大发彩票注册DN400-DN3000

,HUANSHIQUYASHIHE

DN50-DN400

。

2

大发彩票注册、FALANQUYAJUYOUJIAGONGJIANDAN、YIANZHUANGYIQINGLIDENGTEDIAN,DANJINGDUDIYUJIAOJIEQUYA,SHIHE

GUANJINGWEI

DN50-DN1000

。

3

、JINGJUQUYADIANGUDING,SHIHELEINUOSHUDADECHANGHE,SHIHEGUANJINGWEI

DN50-DN1000

。HUANSHI

QUYAJIUSHUYUJIAOJIEQUYA,YONGSHANGHUANSHIJINXINGJUNYAXIAOGUOGENGHAOYIXIE,DANSHI

DN600

DEKONGBANYONG

HUANSHICHENGBENJIUTIGAOBUSHAO,

RUOZHIYONGFALANSHIJIAOJIEQUYAANZHUANGSHIYAOZHUYIJINGQUEDAOWEIYEXING,

ZHUNQUE

DUHUIYOUSUOJIANGDI;FALANQUYAJIAOJIANDAN,RONGYIZHUANGPEI,DANZHUNQUEDUJIAOJIAOJIEQUYADIYIXIE;CIWAI

HUANYOUJINGJUQUYA,

DANQIYACHAJIAOXIAOBUYICELIANG,

YINCIHENSHAOCAIYONG,

DANJINGJUQUYASHIYONGYUDAGUAN

DAODEGUOREZHENGQICELIANG;

大发彩票注册GENJUNIZHEZHONGQINGKUANGCAIYONGHUANSHIJIAOJIEQUYAXIAOGUOZUIHAO,

ZHUNQUEDUHELINGMIN

DUDOUGAO,DANSHICHENGBENSHAOGAOYIXIE。

大发彩票注册BIAOZHUNKONGBANLIULIANGJIYOUNAXIEQUYAFANGSHI?

BIAOZHUNKONGBANGENJUGUOJIABIAOZHUNBAOKUOJIAOJIEQUYA、FALANQUYA、JINGJUQUYA。

1

大发彩票注册、JIAOJIEQUYABAOKUOZHANKONGQUYAHEHUANSHIQUYA,YOULIYUSUODUANZHIGUANDUAN,JINGDUJIAOGAO。QIZHONGZHAN

KONGQUYASHIHEGUANJINGWEI

大发彩票注册DN400-DN3000

,HUANSHIQUYASHIHE

DN50-DN400

。

2

、FALANQUYAJUYOUJIAGONGJIANDAN、YIANZHUANGYIQINGLIDENGTEDIAN,DANJINGDUDIYUJIAOJIEQUYA,SHIHE

GUANJINGWEI

大发彩票注册DN50-DN1000

。

3

、JINGJUQUYADIANGUDING,SHIHELEINUOSHUDADECHANGHE,SHIHEGUANJINGWEI

DN50-DN1000

。HUANSHI

QUYAJIUSHUYUJIAOJIEQUYA,YONGSHANGHUANSHIJINXINGJUNYAXIAOGUOGENGHAOYIXIE,DANSHI

DN600

DEKONGBANYONG

HUANSHICHENGBENJIUTIGAOBUSHAO,

RUOZHIYONGFALANSHIJIAOJIEQUYAANZHUANGSHIYAOZHUYIJINGQUEDAOWEIYEXING,

ZHUNQUE

DUHUIYOUSUOJIANGDI;FALANQUYAJIAOJIANDAN,RONGYIZHUANGPEI,DANZHUNQUEDUJIAOJIAOJIEQUYADIYIXIE;CIWAI

HUANYOUJINGJUQUYA,

大发彩票注册DANQIYACHAJIAOXIAOBUYICELIANG,

YINCIHENSHAOCAIYONG,

DANJINGJUQUYASHIYONGYUDAGUAN

DAODEGUOREZHENGQICELIANG;

GENJUNIZHEZHONGQINGKUANGCAIYONGHUANSHIJIAOJIEQUYAXIAOGUOZUIHAO,

ZHUNQUEDUHELINGMIN

DUDOUGAO,DANSHICHENGBENSHAOGAOYIXIE。

標準孔板流量計有哪些取壓方式?  標準孔板根據國家標準包括角接取壓、法蘭取壓、徑距取壓。  1、角接取壓包括鉆孔取壓和環室取壓,有利于縮短直管段,精度較高。其中鉆孔取壓適合管徑為DN400-DN3000,環室取壓適合DN50-DN400。  2、法蘭取壓具有加工簡單、易安裝易清理等特點,但精度低于角接取壓,適合管徑為DN50-DN1000。  3、徑距取壓點固定,適合雷諾數大的場合,適合管徑為DN50-DN1000。環室取壓就屬于角接取壓,用上環室進行均壓效果更好一些,但是DN600的孔板用環室成本就提高不少,若只用法蘭式角接取壓安裝時要注意精確到位也行,準確度會有所降低;法蘭取壓較簡單,容易裝配,但準確度較角接取壓低一些;此外還有徑距取壓,但其壓差較小不易測量,因此很少采用,但徑距取壓適用于大管道的過熱蒸汽測量;根據你這種情況采用環室角接取壓效果最好,準確度和靈敏度都高,但是成本稍高一些。
拉菲彩票 拉菲彩票 贵州快3 贵州快3 陕西11选5 甘肃11选5 新疆11选5 新疆11选5