根据科里奥利力原理及多变量数字处理测量技术开发的一种高精度流量及密度测量仪表。实现流体质量流量的直接精密测量，而无需任何压力、温度、粘度、密度等换算或修正。其结构是由传感器单元和变送器单元两部分组成。仪表按本质安全防爆型的国家标准设计与制造。质量流量计能够直接测量流体的质量，具有安装要求低（对仪表的前后直管段要求不高），运行可靠、稳定、维修率低等特点retz A high-precision flow and density measuring instrument developed based on the Coriolis force principle and multivariable digital processing measurement technology. Realize direct and precise measurement of fluid mass flow without any conversion or correction of pressure, temperature, viscosity, density, etc. Its structure is composed of two parts: a sensor unit and a transmitter unit. Instruments are designed and manufactured in accordance with national standards for intrinsically safe and explosion-proof types. The mass flowmeter can directly measure the mass of the fluid, with low installation requirements (low requirements for the front and rear straight pipe sections of the instrument), reliable and stable operation, and low maintenance rate
进口U型质量流量计 科里奥利 科氏力质量流量计原理 Coriolis mass flowmeter principle
科里奥利质量流量计（Coriolis Mass Flowmeter）简称科氏力质量流量计，一个弯管道的两端被固定，在两个固定点的中间位置给管道施加振动力（按管道的谐振频率），使其以固定点为轴以其自然频率u振动，当管道内没有流体流动时，管道只受外加震动力作用，管道两个半段振动方向相同，没有相位差。当有流体流动时受管道内流动的介质质点科氏力Fc的影响，管道的两个半段按相反的方向发生扭动，产生相位差，这一相位差同质量流量成正比，这就是科氏质量流量计的工作原理.Coriolis Mass Flowmeter is referred to as Coriolis force mass flowmeter. Both ends of a curved pipe are fixed, and vibration force (based on the resonance frequency of the pipe) is applied to the pipe at the middle of the two fixed points, making it vibrate at its natural frequency u with the fixed point as the axis. When there is no fluid flow in the pipe, the pipe is only subjected to external vibration force, and the vibration directions of the two halves of the pipe are the same, without phase difference. When there is fluid flowing, influenced by the Coriolis force Fc of the medium particles flowing in the pipe, the two halves of the pipe twist in opposite directions, resulting in a phase difference that is proportional to the mass flow rate. This is the working principle of a Coriolis mass flowmeter
进口U型质量流量计技术参数 Technical parameter
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质量测量精度 |
0.1%、0.15%、0.2% |
被测介质温度 |
-50℃~200℃ |
|
0.05% |
适用环境温度 |
-30~70℃ |
|
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密度测量范围 |
O |
测量管材质 |
316L,哈氏合金 |
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密度测量精度 |
±0.001g/cm³ |
工作压力 |
常规4MPa,高压可特殊订制 |
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温度测量范围 |
-200℃~350℃ |
防爆型等级 |
Exd[ib]IICT1~T6Gb |
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温度测量精度 |
±1℃ |
防护等级 |
IP67 |
|
输出信号 |
4-20mA电流信号、0-10KHZ频率信号、脉冲当量信号、RS485通讯信号、HART协议 |
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