Device for measuring flux by turbine method, the method and its uses

A turbine and flow technology, applied in measuring devices, by detecting the dynamic effect of fluid flow, fluid velocity measurement and other directions, it can solve problems such as slowing the angular speed of turbine rotation, shaka, and limiting the use range of flowmeters.

Inactive Publication Date: 2008-01-09
BEIJING ZEBANON SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is easy for sand to enter between the turbine bearing and the support points at both ends, resulting in a sand card phenomenon, resulting in slow or non-rotating angular speed of the turbine, which greatly reduces the accuracy and reliability of the device
On the other hand, due to the existence of static friction, this type of flowmeter has a so-called starting displacement, which also limits the scope of use of this type of flowmeter.

Method used

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  • Device for measuring flux by turbine method, the method and its uses
  • Device for measuring flux by turbine method, the method and its uses
  • Device for measuring flux by turbine method, the method and its uses

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Embodiment Construction

[0015] The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

[0016] The device for measuring flow by the turbine method provided by the present invention can be applied in various fields, and is not limited to the fields described in detail in the following embodiments. The specific implementation of the present invention will be described in detail below by selecting a device for measuring flow by the turbine method in a typical field.

[0017] As shown in Figures 1 and 2, the device for measuring flow by the turbine method provided by the present invention includes a turbine 5 for making the rotational angular velocity of the device positively correlated with the flow rate, two magnetic support terminals 2 for magnetic levitation, and a magnetic turbine shaft 4 , the auxiliary electrode 7 fixed on the turbine shaft 4 used to measure the turbine rotation angle, the measuring electrode ...

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Abstract

The invention relates to an equipment of turbine method to test the flux and its method, the equipment includes a turbine which reflects the flow velocity by the rotating velocity and the magnetic suspend bearing which supports the turbine, the turbine through the magnetic suspend bearing and the support of the equipment connected. Of which, on the support of the equipment installs a group measure electrode, on the turbine installs a group assistant electrode. Because of the turbine rotating lead the distance between the assistant electrode and the each measured electrode to change, further lead the resistance and capacitance between the each measured electrode and the assistant electrode to change, then further lead the resistance and capacitance of the each measured electrode also to change. The measured electrode connects to the test circuit, can test the rotating angle of the turbine through testing the resistance and capacitance between the measuring electrode.

Description

technical field [0001] The invention relates to a device and a method for measuring flow by a turbine method, in particular to a device and a method for measuring flow by a turbine method in petroleum well logging and its application. Background technique [0002] In the device for measuring flow by the turbine method, the main method of measuring the flow by the turbine method widely used at present is to place a turbine in the center of the pipeline, and the two ends are supported by bearings. When the fluid passes through the pipeline, it impacts the blades of the turbine and generates a driving torque to the turbine, which makes the turbine rotate by overcoming the frictional moment and fluid resistance moment. Within a certain flow range, for a certain fluid medium viscosity, the rotational angular velocity of the turbine and the fluid flow rate into a positive correlation. Thus, the fluid flow rate can be obtained from the rotational angular velocity of the turbine, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/20G01F1/32G01P5/01G01P5/06
Inventor 李代甫
Owner BEIJING ZEBANON SCI & TECH
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