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1. Gas turbine flowmeter?
It mainly consists of a housing, a leading fluid (rectifier), a guide ring, a turbine (impeller), dust-proof labyrinth components, bearings, a main shaft, an internal oil storage pipe, a trailing fluid, a refueling system, a signal generation disk, signal sensors, pressure sensors, temperature sensors, etc. Those equipped with mechanical counters also include worm gears, connecting rods, magnetic couplings, gear sets, mechanical counters, etc. The characteristics of the. png 84980. png02 gas turbine flowmeter are velocity flow meters, which have the features of low pressure loss, high accuracy, low starting flow rate, large range ratio, and good anti vibration and anti pulsating flow performance. This type of product is widely used in the fields of petroleum, chemical, power, industrial boilers, gas pressure regulating stations, natural gas transmission and distribution networks, urban natural gas, and has been widely used in trade metering. Working principle and application of 03 gas turbine flowmeter
1. When the airflow enters the flowmeter, it first passes through the leading fluid of the movement and accelerates. Under the action of the fluid, due to the angle between the turbine blades and the fluid flow direction, the turbine generates a rotational torque, which begins to rotate after overcoming the drag torque and friction torque of the turbine. When the various torques reach equilibrium, the speed is stable, and the angular velocity of the turbine rotation is linearly related to the flow rate. For mechanical counter type turbine flow meters, the counter is driven to rotate and count through the transmission mechanism. For flow meters using electronic flow integrators, a
2、 Gas turbine flow enables the widespread use of land meters in petroleum, organic liquids, inorganic liquids, liquefied gases, natural gas, and low-temperature fluids. 04 Decomposition diagram of gas turbine flowmeter. pg05 Installation site requirements for gas turbine flow rate
1. The installation site should meet the environmental temperature range of -25~55 ℃ and humidity<80% RH;
2. Good ventilation, avoiding sun exposure and rain;
;3、 Avoid places with vibration or stress in piping;
4、 Avoid places that are susceptible to strong thermal radiation and radioactive effects;
5、 It is necessary to avoid interference from external strong electromagnetic fields on the detection signal. If it cannot be avoided, measures such as installing a shielding cover on the amplifier of the flowmeter (sensor) should be taken to eliminate interference;
6、 In places with explosion-proof requirements, explosion-proof amplifiers should be used;
7、 The installation location should be considered for ease of installation, operation, and maintenance. Installation technology requirements for gas turbine flow rate: To ensure high measurement accuracy, the flow meter (sensor) should be installed horizontally on a horizontal pipeline, and the direction of the arrow indicating the flow direction on the flow sensor should be consistent with the flow direction of the medium.
2、 To eliminate the impact of uneven cross-sectional velocity distribution i
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