Turbine Flow Meter
Turbine flow meter is a velocity type flowmeter, which works based on the principle of conservation of fluid momentum moment. It mainly consists of a housing, a flow guide, a support, a turbine and a magneto-electric converter.
As a precision flowmeter, which can be used to measure the flow and total amount of liquid together with the corresponding flowmeter. When used together with the quantitative control instrument developed by our factory, it can carry out high precision quantitative control of liquid feeding. Widely used in petroleum, chemical, metallurgy, scientific research and other fields of measurement and control system.
The integrated turbine flowmeter design is explosion-proof and can display total flow rate, instantaneous flow rate and percentage of full flow rate.
How does a turbine flowmeter work?
Working principle of turbine flow meter is, fluid flow through the sensor shell, due to the impeller blade and flow direction has a certain angle, the impulse of the fluid so that the blade has a rotating torque, after overcoming the friction torque and fluid resistance blade rotation, after the torque balance speed stability, under certain conditions, speed and flow rate is proportional, because the blade has magnetic conductivity, it is in the signal detector (by permanent magnet and coil composition) of the magnetic field, the rotating blade cutting magnetic lines of force, periodically changing the magnetic flux of the coil, so that both ends of the coil induction of electric The signal is amplified and shaped by the amplifier to form a continuous rectangular pulse wave with a certain amplitude, which can be transmitted to the display meter to show the instantaneous flow and the accumulated amount of fluid. In a certain flow range, the pulse frequency f is proportional to the instantaneous flow rate Q of the fluid flowing through the sensor, and the flow equation is: Q=3600×f/k
- f – pulse frequency [Hz]
- k – sensor instrumentation coefficient [1/m], given by the calibration sheet. If [1/L] as the unit Q = 3.6 × f/k
- Q – instantaneous flow rate of the fluid (in working condition) [m3/h]
- 3600 – conversion factor
The instrumentation coefficient of each sensor is filled in the calibration certificate by the manufacturer, and the k-value is set into the matching display meter, which will show the instantaneous flow rate and cumulative total.
Types of turbine flow meters
- Insertion type turbine flowmeter: the measuring element of the turbine flowmeter is inserted into the pipeline, suitable for measuring the flow of large diameter pipes.
- Straight pipe type turbine flowmeter: the turbine flowmeter is installed in the middle of the pipe, suitable for measuring the flow of small and medium diameter pipes.
- Leaded turbine flowmeter: the turbine flowmeter is installed in the pipeline next to the lead pipe, suitable for measuring the flow of high-viscosity, highly corrosive fluids.
Applications
Petrochemical industry
- Measure the flow of crude oil, refined oil, various chemical raw materials, intermediates and products.
- Measure the gas flow in the process of oil refining and chemical production, such as the feed and gas flow of catalytic cracking device.
Power industry
- Measuring boiler steam flow, turbine steam flow, condensate flow, feed water flow, etc.
- Measurement of power plant air compressor flow, flue gas flow, etc.
Metallurgical industry
- Measure blast furnace gas flow, coke oven gas flow, natural gas flow, oxygen flow, nitrogen flow, etc..
- Measure cooling water flow, wastewater flow, etc.
Water industry
- Measure tap water, industrial water, agricultural water flow.
- Measure sewage, river water flow, etc.
Other industries
Textile printing and dyeing, papermaking, food, medicine, environmental protection and other industries.
Product categories
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