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1. Working principle of Tianxin gas turbine with gear meter flowmeter
The Tianxin gas turbine with gear meter flowmeter accurately measures the cumulative gas flow rate by sensing the fluid flow velocity through the turbine and converting it into an electrical pulse signal, which is then counted by mechanical gears. When the turbine rotates and the gas flows into the flowmeter, it will first pass through a specially designed rectifier. This rectifier can smooth and accelerate the airflow, directing it to impact the blades of the turbine. Due to the specific angle between the blades and the airflow direction, the kinetic energy of the diffuser will be converted into a force that rotates the turbine. The larger the flow rate, the stronger the impact force of the airflow, and the faster the speed of the turbine.
2. Signal conversion: The rotation of the turbine will drive the synchronous rotation of the magnets on it. A pulse detection device containing an induction coil is installed outside the flowmeter casing. The rotation of the magnet will periodically change the magnetic field in which the coil is located. According to the principle of electromagnetic induction, alternating pulse electrical signals will be generated inside the coil. The frequency of this Xinqiaoling is proportional to the turbine speed, which is directly proportional to the instantaneous flow rate of the gas. The flow calculation and pulse signal generated by the display are transmitted to the integrator or display instrument. The core of the instrument is an instrument coefficient, which is like the "ID card" of a flow meter, calibrating the volume flow value represented by each pulse. By counting and calculating the pulses, the inst
2. Adjustment coefficient of turbine flowmeter
The instrument coefficient adjustment of turbine flowmeter is the core link to ensure its measurement accuracy, usually requiring the use of standard equipment calibration and parameter modification through hardware or software.
. 1. Coefficient meaning: The instrument coefficient of a turbine flowmeter represents the number of pulses generated per unit volume of fluid passing through it, usually measured in times per liter or times per cubic meter. This value is closely related to the mechanical structure, fluid properties, and pipeline installation conditions of the flowmeter, and is the basic calibration parameter for flow calculation.2. Adjustment method: Hardware adjustment: Some conventional models are achieved through physical adjustment, such as using a tool to rotate and turn an internal potentiometer to change the resistance value, and adjust the pulse output frequency accordingly.
. This type of operation requires professional personnel to avoid accidental contact with precision components. Software adjustment: Contemporary intelligent flow meters mostly support digital settings, which can be accessed through the surface cleaning hand board button or connected to a computer programmer to enter the parameter menu and directly input the calibrated new coefficient va
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