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『The principle of nozzle flowmeter』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
1. What is a nozzle flowmeter?
A nozzle flowmeter is a differential pressure generating device for measuring flow in a closed loop. It can be used in conjunction with various differential pressure gauges or transmitters to measure the flow of various fluids in pipelines.. The standard nozzle throttling device is used in conjunction with differential pressure transmitters to measure the flow rates of liquids, vapors, and gases, and is widely used in sectors such as petroleum, chemical, metallurgical, power, and light industry. Compared with orifice flow meters, nozzle flow meters have smaller pressure losses, thus saving energy, being more sturdy and durable, and suitable for high-temperature and high-pressure fluids. Lets further understand the relevant knowledge of nozzle flowmeter. The nozzle flowmeter can be used to measure the flow rate of high temperature and high pressure liquids due to its more expensive structural material compared to orifice plates. Under the same measurement conditions, nozzle flow meters have higher mechanical strength, can accommodate fluid flow rates exceeding 60% of the volume, and can measure the flow velocity of fluids containing solid particles, with less interference than orifice plates with the same aperture in front of them. Suitable for high-speed fluid flow. In addition to single nozzles, Hitrol also provides nozzles for side welding short pipes (upstream 4D and downstream 2D). Its type fully complies with ISO-5167 (including ISA1932 nozzle), Venturi nozzle, ASME MFC-3M, and ASME PTC-6 standards.
2. What are the flow regulation methods for metering pumps?
3. Types and principles of flow meters
Types and principles of flow meters Flow meters ar
1. Mechanical principles Flow meters Differential pressure flow meters: Using Bernoullis theorem, the flow rate is calculated by measuring the pressure difference of the fluid before and after the throttling device. The throttling device can be an orifice plate, nozzle, etc. Rotary flowmeter: uses the force of fluid on the rotor to rotate it, and calculates the flow rate by measuring the speed or angle of the rotor. Impulse flowmeter: Using the momentum theorem, the flow rate is calculated by measuring the impact force of a fluid on an object. Turbine flowmeter: It uses the force of fluid on the turbine blades to rotate the turbine, and calculates the flow rate by measuring the speed of the turbine. Turbine flowmeter has the characteristics of high measurement accuracy and fast response speed. Vortex flowmeter: uses the vortex frequency generated by the fluid after a specific shaped object (such as a vortex generator) to calculate the flow rate. Vortex flowmeter has the characteristics of wide measurement range and good stability. Positive displacement flowmeter: calculates flow rate by measuring the number of times a fluid flows through a fixed volume within a certain period of time. The volumetric flowmeter has the characteristics of high measurement accuracy and is suitable