Coriolis mass flowmeter

A mass flow meter, Coriolis technology, applied in the field of flow meters, can solve the problems of fluid pressure loss, complex structure, measurement error, etc., to achieve the effect of eliminating pressure loss, high measurement sensitivity, and large elasticity

Inactive Publication Date: 2010-10-13
SIEMENS CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the structure of the measuring tube of this kind of flowmeter is complicated, and the design ...

Method used

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  • Coriolis mass flowmeter
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  • Coriolis mass flowmeter

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Embodiment Construction

[0035] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings, in which the same symbols represent the same parts.

[0036] Figure 4 The working principle of the Coriolis flowmeter using the rotating measuring tube of the present invention is shown. Such as Figure 4As shown, the measuring tube 1 includes a straight inlet pipe 11 , a straight outlet pipe 12 and an arc bent pipe 13 . A stream of fluid with mass m flows in from the inlet end of the straight inlet pipe 11 at a velocity V and flows out from the outlet end of the straight outlet pipe 12 . Measuring tube 1 revolves around an axis of rotation determined by straight tubes 11 and 12 (see also Figure 5 The axis of rotation indicated by the dotted line in the center) rotates clockwise at a constant angular velocity ω. When the flui...

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Abstract

The invention provides a Coriolis mass flowmeter, comprising a measuring tube capable of rotating around a rotation axis and a pair of vibrating sensors; wherein the measuring tube is made by metal glass, the measuring tube is provided with an inlet straight tube section which is coaxial with the rotation axis and guides the fluid to be measure to flow in, an outlet straight tube section which is coaxial with the rotation axis and guides the fluid to be measured to flow out as well as a curved tube section which is arranged between the inlet straight tube and the outlet straight tube and is communicated with the two; and the vibrating sensor is arranged at the two ends of the curved tube of the measuring tube. The mass flowmeter of the invention has high sensibility and can be applied to mass flow measuring in small flow or in large flow regulating range.

Description

technical field [0001] The present invention relates to a kind of flowmeter, is used for measuring the mass flow rate of fluid, specifically, relates to a kind of Coriolis flowmeter with very high sensitivity, it can measure the mass flow rate of very small flow rate, or in the flow adjustment range Measure flow in very large cases. Background technique [0002] In the pharmaceutical, food and other industrial fields, it is very important to determine the flow in the pipeline for the monitoring, control and production of the process. The mass flow in pipelines is usually measured by flowmeters. The flowmeters commonly used in closed pipeline systems can be divided into electromagnetic flowmeters, ultrasonic flowmeters, matrix flowmeters and Coriolis flowmeters. [0003] Coriolis flow meters have many advantages over other flow meters. First, it can measure mass flow very accurately by a direct method, while other types of flow meters can only measure volume flow and requir...

Claims

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Application Information

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IPC IPC(8): G01F1/84
Inventor 张奇然李磊
Owner SIEMENS CHINA
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