Portable turbine flowmeter

Abstract

The invention relates to a portable turbine flowmeter. The flowmeter comprises a turbine, a first coil, a second coil, a first comparator, a second comparator, a temperature sensor, a microprocessor, a displayer, a memorizer, a shell, an upper liquid level sensor, a lower liquid level sensor and a liquid level detector. The turbine is located in liquid in the shell, and a magnet is installed in the turbine. The temperature sensor is arranged in the mounting hole of the shell; the liquid level detector for detecting the liquid level in the shell is arranged in the shell; the first coil and the second coil are matched with magnets mounted in the turbine; one end of the first comparator and one end of the second comparator are connected to the first coil and the second coil respectively, and the other ends are connected to the microprocessor; and the temperature sensor, the display, the memory, the upper liquid level sensor and the lower liquid level sensor are all connected to the microprocessor. High-precision metering can still be achieved in the half-oil and half-gas state of the pipeline, the precision is +/-0.2%, and a temperature compensation function is achieved according to different expansion coefficients of various oil products.

Description

technical field [0001] The present invention relates to a flow meter, in particular to a method capable of compensating and calculating the half-oil and half-gas state of the pipeline at the end of oil unloading, so as to achieve the purpose of complete oil unloading and accurate measurement (accuracy is ± 0.2%) , and a portable turbine flowmeter with temperature compensation. Background technique [0002] At present, when the tanker unloading flowmeter on the market reaches the last two to three hundred liters of oil unloading, the measurement accuracy will be inaccurate due to the half-oil and half-air state in the pipeline, and it cannot be completely unloaded, so now it is generally adopted the last Two to three hundred liters of oil are measured by weighing, which is very inefficient. Contents of the invention [0003] In view of the above problems, the main purpose of the invention is to provide a compensation calculation for the half-oil and half-gas state of the p...

AI Technical Summary

Problems solved by technology

[0002] At present, when the tanker unloading flowmeter on the market reaches the last two to three hundred liters of oil unloading, the measurement accuracy will be inaccurate due to the half-oil and half-air state in the pipeline, and it cannot be completely unloaded, so now it is generally adopted the last Two to three hundred liters of oil are measured by weighing, which is very inefficient

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