High-precision liquid flow meter

Abstract

The invention discloses a high-precision liquid flow meter. The shape of each of two measuring tubes is similar to triangle, so that the liquid flow meter is compact in overall structure and attractive in appearance. By means of the two tubes, sensitivity to outside vibration can be reduced, measurement of phase difference is easily achieved, and accordingly measurement precision is higher. Measuring tube fixing blocks can be used for clamping and positioning the two ends of the two measuring tubes, the two measuring tubes keep parallel, and the gap between the measuring tubes can not change. Heat absorbing fins are made of aluminum alloy, the contact area of the heat absorbing fins and normal-temperature air is large, the heat absorbing fins absorb outside heat and quickly transfer the heat to a connection rod according to the heat transfer principle, and the temperature of the connection rod rises so that low temperature can not be transferred to a transformer part, and the transformer normally works. The high-precision liquid flow meter is simple in structure, easy and convenient to operate, convenient to use, low in cost, wide in application range and suitable for being used and popularized.

Description

technical field [0001] The invention belongs to the technical field of CNG / LNG mass flow meters, in particular to a high-precision liquid flow meter. Background technique [0002] The Coriolis mass flow meter is a novel instrument that directly and precisely measures the mass flow rate of a fluid. If the fluid is introduced into the tube while the internal tube vibrates synchronously, so that it flows forward along the tube, the tube will force the fluid Vibrating up and down together with it, in order to resist this forced vibration, the fluid will give the pipe a reaction force perpendicular to its flow direction. Under the action of this force called Coriolis effect, the vibration of the pipe is out of sync, and the inlet section There will be a difference in the vibration time of the tube and the outlet tube (the difference is due to the opposite direction of the Coriolis force on the fluid in the inlet and outlet sections), which is called the phase time difference. Th...

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Problems solved by technology

[0004] The invention provides a high-precision liquid flowmeter, aiming to solve the problem that the liquid flowmeter provided by the prior art has low measurement accuracy and cannot meet the actual use requirements

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