来源： 作者： 发布时间：2020-04-27

 

 流量测量对于工厂的安全高效运行是必不可少的

Flow measurements are essential to running a plant efficiently and safely

有大量的流量技术可以选择

There's an array of flow measurement technologies available

包括多变量流量变送器

including multi-variable flow transmitters

传统方式需要3台独立的变送器、一台流量计算机和可选配的就地显示

Traditionally three separate transmitters, a flow computer and an optional local indicator

用于测量工艺条件的变化

are needed to capture changes in process conditions

并输出一个准确的质量流量值

and produce an accurate mass flow reading

这将导致高昂的材料及安装成本

This results in high material and installation costs

同时还伴随着多处管道开孔、过程连接、布线以及维护

associated with multiple pipe penetrations, process connections, wiring and maintenance

有了艾默生的多变量变送器

With Emerson's multi-variable transmitters

单台设备就能测量三个过程量

you have access to three process measurements

并进行流量计算

and flow calculations in a single device

包括差压、静压和工艺温度

including differential pressure, static pressure and process temperature

这将为您节省最高70%的安装成本

This can reduce your overall installed cost by up to 70 percent

安装量小了，自然为您省钱了

allowing you to save more by installing less

反而您还能看到更多过程变量

and see more of your process variables

质量流量方程包含了受

The mass flow equation contains factors that are affected

压力变化、温度和流量变化的系数

by changes in pressure, temperature and flow rate

例如流量(流出)系数、气体膨胀系数和密度

such as discharge coefficient, gas expansion factor and density

通过对差压

By compensating for changes in differential pressure

静压和工艺温度的补偿

static pressure and process temperature

控制系统将得到一个更精确的流量测量

a more accurate flow measurement is returned to the control system

多变量技术

Multi-variable technology

加上艾默生的创新基本要素

when coupled with Emerson's innovative primary elements

为行业提供了领先的流量测量解决方案

provides industry leading flow measurement solutions

这些解决方案能够完全集成到流量计中

These solutions can be fully integrated into a flow meter

为您从采购到安装过程节约时间和成本

to save time and cost during procurement and installation

当然也降低了维护成本

While also reducing maintenance costs