久久精品香蕉,一级毛片A级一区二区三区,人妻午夜电影,少妇自拍毛片

Main Products:Electromagnetic Flow meter  Metal Tube Flow Meter  Glass Tube flow Meter
 
 
 
 
 
Glass Tube Flowmeter
LZB/LZJ series glass rot...
Glass Tube Flowmeter
Glass Tube Flowmeter
LZB-()W/WB series micro ...
Glass Tube Flowmeter

 


LUGB series vortex flowmeter steam measure high accuracy [CHENGFENG FLOWMETER] good cost performance professional flowmeter manufacture
Product Model:LUGB series

CHENGFENG FLOWMETER for 30 years, has been in the study and progress, learning advanced foreign instrumentation equipment and technology, the introduction of advanced technology, and then based on the research and development of new technology, combined with the requirements of customers innovative products that meet customer needs, meet the requirements of customers, the pursuit of perfect quality, technical breakthroughs.

Working Principle

 

Non-streamline vortex-maker be set in fluid(anti-flow part),then two regular vortex would be come out,from two sides of the vortex-maker in turn,so this kind of vortex be called as Karman vortex street,Fig.1 as follow.

    

vortex-1.jpg

Vortex is not flowing symmetrically under vortex-maker set.As if,set frequency of vortex is f,the speed of test medium is V,inlet face width of vortex-maker is d,Past part diameter is D,as the principle of Karman vortex street,as follow:

f=St×v/d

In the formula:

St-Jack straw Hal number;

f-frequency product by single side vortex;

v-flowrate;

d-diameter.

So,check the separate frequency of Karman vortex street to know the instant capacity(flow).among,Strouhal number(St)is dimensionless number, Fig.2 Show the relation of,Strouhal number(St)&Reynolds number(Re).

 

vortex-2.jpg

                                                                                                              Fig.2

 

 Straightness part in curve(St=0.17),free frequency & flow rate of vortex is direct ratio,it means flow sensor range.So just check out frequency (f),we can get the flow rate inside pipe,then as the flow rate(V)to take volume flow,the ratio record of impulse& volume,called as(K),as following:

 

                      K=N/Q(1/m³)            

 

Model:K=instrument constant(1/m³).

          N=impulse number

        Q=volume flow(m³)

 

Technical Parameter

 

vortex-3.jpg

 

Outline Size

 

Full Package Type Installing Size

 

vortex-4.jpg

 

 

Plug-in Type Installing Size

 

vortex-5.jpg

 

Type Selection

 

  1.Model selection table of vortex street flow meter(JB/T9294-1999 standard)

vortex-6.jpg

 

   2. Table of comparisons sensor drift diameter

vortex-7.jpg

 

Break the routine, meet more customer requirements, customized for clients of various kinds of non-standard type flowmeter, it is a kind of ability, is also a kind of attitude.Let the customer buy satisfied products, let customers get the perfect service that is our attitude.

CHENGFENG FLOWMETER as a traffic instrument, temperature instruments, pressure instruments, level instrument professional manufacturers, has always insisted on developing new technology, research and development of new products, develop technical advantage, tally up experience of 30 years production practice, efforts to develop all kinds of flow metering products, forming scale, systematic and diversified pattern of production.Adhere to the "quality first, customer first" the light of policy, implementation of GB/T19001-2000 quality management system requirements, to ensure product quality long-term stability and constantly improve, to provide users with high-quality products and perfect service.


? 2012 Changzhou Chengfeng Flowmeter Co.,Ltd All Rights Reserved   Main Products:Electromagnetic Flow meter  Metal Tube Flow Meter  Glass Tube flow Meter
Design by Lingdong Internet  Switchboard:86-519-85503558,86-519-85503688  Fax:86-519-85505269,86-519-85503588-8008
Friendly Links:成豐儀表阿里巴巴店鋪    新浪    
大鸡吧操逼逼在线网址| 国产美女一区二区三区四区五区| 免费黄片果冻传媒| 黄片日韩欧美大| 乱码视频在线视频网站| 伦理福利免费视频| 亚洲偷偷看伦理| 亚洲草b视频| 免费黄色激情四射视频| 中字一区二区三区人妻电影| 九一在线成人 视频网站| 亚洲精品午夜三级片| 91无码人妻一区二区成人| 久久久九九九免费视频| 国产偷拍一区二区三区| 亚洲图欧美在线| 日韩原创无码av| 久久大陆少妇| 美女内射一区| 好吊妞精彩在线视频| 台湾美妹性中文娱乐网| 三区四区五区| 欧美牲一区二区三区| 国产aaabbb| 精品色88| 欧美一区二区一| 啊啊啊啊啊啊啊…操死我…欧美一区| 亚洲欧美第九十二页| 美日韩一区一区| 99久久99蜜臀| 日韩一区五码| 久久夜色国产精品噜噜AVAV| 美韩成人在线观看| 九九九精品伦理视频| 久久久久久久久夜夜夜情| 青青操精品中文在线观看视频| 亚洲美女写真伦理观看免费视频网址 | 大香蕉综合22| 欧美一级黃片免费播放| 激情亚洲精品综合网| 国产精品福利网址|