供应*锥型流量计 德国科威尔(图)

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锥型流量计

FVC系列

原理,结构                                                                              

基于密封管道中的能量守恒定理,锥形流量计由于具有**的设计结构。锥形流量计是在管道中心处悬挂一锥形节流件,锥形件阻碍介质的流动,重塑流速曲线,在锥形性的下游可立即形成低压区,管道上游的正压同经节流件节流后的下游的负压之间有一差压,将正、负压用取压口取出,正压口位于管道的上游,负压口位于锥体的末端,通过测量两者之间差压,根据伯努力方程即可计算出管道中的流量,锥*于管线中心,可对所测介质的流速曲线进行优化,因此测量精度高,对仪表上、下游的直管段要求低             

特点                                                                                   

安装时无直管段要求,自清洗功能,适用于容易结垢的脏污介质,气液两项测量。      

应用                                                                                   

可测量气体、蒸汽、液体的流量,广泛应用于石油、化工、冶金、电力、供热、供水等领域的过程控制和测量      

技术参数                                                                                  

●公称通径(mm                          DN15DN3000                                                    

●耐压:                               16MPa                                                 

●测量精度:                               ±1%                                                      

●重复性误差:                         测量值的±0.1%                                                   

●精度等级:                            0.1&0.5       

●*护等级:                     IP65(**IP68                                                

●供电电源:                     DC24V                                             

●介质温度:                     *下30-450                                                

●环境温度:                     *下30~+70                                            

●相对温度:                     5%95%                                               

订货时请详细提供以下数据 1)被测介质 2)*大、常用、*小流量。 3)工作压力、工作温度 4)介质密度、粘度 5)管道材质、内径、外径 6)允许压力损失 7)取压方式 8)现场管道敷设情况和局部阻力件形式。                                                                                                                                                             

                                                                                                                                                                

                                                                                                                                                                                                                                                                                

                                               

                                                                                       

                                               

                                               

                                               

                                               

                                               

                                               

 

型号/规格

FVC

品牌/商标

KEWILL