Double C-type tube coriodis mass flow meter

A mass flow meter, Coriolis technology, applied in the field of Coriolis mass flow meters, can solve the problems of simplicity, vibration energy dissipation of sensitive tubes, stress relief, weight reduction, etc.

Active Publication Date: 2005-03-02
XIAN DONGFENG MACHINERY & ELECTRONICS
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  • Abstract
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  • Claims
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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

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  • Double C-type tube coriodis mass flow meter
  • Double C-type tube coriodis mass flow meter
  • Double C-type tube coriodis mass flow meter

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Embodiment Construction

[0026] The Coriolis mass flowmeter of the present invention, such as figure 1 As shown, it includes two parallel C-type sensitive tubes 1 and 2. The fluid to be measured enters the flowmeter from the main body 25 input port 5 and is divided into two parts, flows into the sensitive tubes 1 and 2, and then flows from the sensitive tubes 1 and 2. The outlet flows into the main body into one, and the main pipe output port 6 flows to the external pipe through the flange 18. In the middle section of the sensitive pipes 1 and 2, a drive unit 15 is installed. When working, the two sensitive pipes resonate, and the symmetrical device is in the sensitive pipe 1. The displacement signals 16 and 17 in the middle part of the arc and 2 detect the phase difference signal proportional to the Coriolis force.

[0027] The Coriolis mass flowmeter of the present invention includes an approximately rigid input and output manifold body 25, which is composed of Figure 4 It can be seen that it is ...

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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...

Claims

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Application Information

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IPC IPC(8): G01F1/84
Inventor 任思聪王博张鹏任卫东
Owner XIAN DONGFENG MACHINERY & ELECTRONICS
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