Double C-type tube coriodis mass flow meter

Abstract

A double C type tube mass flow meter, with two 'C' type sensitiveness tubes fixed by fixed plate and welded to main tube is disclosed. Temperature sensor which is thermistor is installed on one end of sensitiveness tube or other pert not making influence for vibration characteristic; main tube is a reversal symmetric with completely input and output; between four ends of the two sensitiveness tube and the main tube the linking distance is small, nearly mechanical structure, making acting force of sensitiveness tube vibration in internal force condition so eliminating or decreasing vaporization of vibrational energy, and sensitiveness tube is in complete free state except its top linking to main tube so eliminating possibility of creating deformation stress and decreasing influence of exterior vibration and making convenience for installation of flow meter.

Description

technical field [0001] The present invention relates to a Coriolis mass flowmeter. Background technique [0002] As we all know, the work of the Coriolis mass flowmeter is based on detecting the Coriolis force caused by the fluid flowing through the sensitive tube to determine its mass, that is, the sensitive tube supported by both ends is flowing with the divided fluid. When vibrating in the vertical direction, the Coriolis force applied to the sensitive tube is proportional to the mass of the fluid flowing through the tube. [0003] The shape of the sensitive tube that constitutes the Coriolis mass flowmeter is various. Among the existing flowmeters, the typical shape of the sensitive tube can be attributed to three types: curved tube, straight tube, and bow-shaped tube. [0004] Figure 8 It is a schematic diagram of the structure of an ordinary two parallel U-shaped curved sensitive tubes Coriolis mass flowmeter. The two U-shaped sensitive tubes 1 and 2 installed in par...

AI Technical Summary

Problems solved by technology

This structure alleviates the problem of stress dissipation to a certain extent, and compensates for the shortcoming of the straight tube type that is easily affected by temperature, but the shapes of the inlet and outlet main pipes, the sub-fluids and the pressure-resistant shell are relatively complicated, which increases the difficulty and difficulty of manufacturing the instrument. weight

[0009] Looking at the advantages and disadvantages of the above-mentioned different types of Coriolis mass flowmeters, it can be clearly seen that the main problem lies in the dissipation of vibration energy of the sensitive tube and the relief of stress. Of course, there are also process Convenience and volume reduction, weight reduction and other issues

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