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『Intelligent gas turbine flowmeter』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)
Is the intelligent turbine flowmeter capable of intelligent power-off? What are the requirements for the medium of an intelligent turbine flowmeter?
1、 The intelligent turbine flowmeter can be equipped with a switch alarm function and can output a 4-20mA signal.
2、 There are no specific requirements for the medium, and intelligent turbine flow meters are mainly used for flow measurement of liquids and gases. The intelligent turbine flowmeter has the characteristics of simple structure, lightweight, high accuracy, good repeatability, sensitive response, and easy installation, maintenance, and use. Typical applications include water, diesel, methanol, and other non impurity and non corrosive liquids. When paired with display instruments with special functions, it can also perform quantitative control and over limit alarm, making it an ideal instrument for flow measurement and energy conservation.
2. What are the standard conditions for intelligent gas turbine flow meters?
When measuring the gas cylinder, there is a standard condition and operating condition for the flow meter. The standard condition refers to the flow rate of a standard atmosphere and a temperature of about 20 ° C, measured in M3/h.
; The working condition refers to the flow rate of the bucket under working conditions, measured in nm3/h.3. What oil can be added to the gas intelligent turbine flowmeter
The gas intelligent turbine flowmeter is mainly used for measuring gas media and can be used to measure oil and natural gas, but it cannot measure pure oil med
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1. Working principle of gas turbine flowmeter Gas turbine flowmeter uses a turbine for measurement. It first converts the flow rate into the rotational speed of the turbine, and then converts the rotational speed into an electrical signal proportional to the flow rate. This type of flowmeter is used to detect instantaneous flow and total cumulative flow, and its output signal is frequency, which is easy to digitize. The induction coil and permanent magnet in the picture are fixed together on the housing. When the ferromagnetic turbine blades pass through the magnet, the magnetic resistance of the magnetic circuit changes, thereby generating an induction signal. The signal is amplified and shaped by an amplifier and sent to a counter or frequency meter to display the total accumulated flow rate. Simultaneously, the pulse frequency is converted from frequency to voltage to indicate instantaneous flow rate. The rotational speed of the impeller is proportional to the flow rate, and the rotational speed of the impeller is proportional to the total amount of flow. The output of the turbine flowmeter is a frequency modulated signal, which not only improves the anti-interference ability of the detection circuit, but also simplifies the flow detection system. Its range ratio can reach 10:1, and the accuracy is within ± 0.2%. The time constant of a turbine flowmeter with small inertia and size can reach 0.01 seconds.
2、 Gas turbine flow meters are widely used in petroleum, organic liquids, inorganic liquids, liquefied gas, natural gas, and low-temperature fluids.