Abstract
Nozzle flowmeter is widely used in industry. In this paper, in order to study the influence of different flow rates and inner wall temperatures on the thermal effect and flow field of the nozzle flowmeter, the fluid‐solid coupling numerical calculation of the thermal effect and flow field of nozzle flowmeter is carried out under four different flow rates and five different inner wall temperatures. It is found that, with the increase of flow rate, the heat transfer effect of the nozzle flowmeter is weakened under different inner wall temperatures. The pressure distribution in the fluid domain, the dynamic stress, and fluid‐induced vibration deformation generated by the fluid of the nozzle flowmeter are less affected by inner wall temperatures.
Highlights
Accurate measurement of steam plays an important role in industrial production
There are two common flowmeters for measuring steam: vortex flowmeter and differential pressure flowmeter. e vortex flowmeter is mainly composed of vortex flow sensor, flow integrator, pressure transmitter, and temperature platinum thermal resistance
Differential pressure flowmeter is mainly composed of throttling device, differential pressure transmitter, flow integrator, pressure transmitter, and temperature platinum thermal resistance
Summary
Accurate measurement of steam plays an important role in industrial production. At present, there are two common flowmeters for measuring steam: vortex flowmeter and differential pressure flowmeter. e vortex flowmeter is mainly composed of vortex flow sensor, flow integrator, pressure transmitter, and temperature platinum thermal resistance. Nozzle steam flowmeter has its unique advantages in the measurement of high temperature and high pressure fluid, and it is widely used in the industrial field [2]. The influence of different flow rates and inner wall temperatures on the thermal effect and flow field of nozzle flowmeter is studied based on the CFD method and fluid-solid coupling method. E working principle is that when the fluid flows through the nozzle of the flowmeter, the fluid will shrink in the nozzle, which accelerates the flow rate and reduces the static pressure of the fluid.
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