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Characteristic evaluation device and characteristic evaluation method for helical flow fields

An evaluation device, a technology of spiral flow, applied in the direction of measuring device, fluid velocity measurement, instrument, etc., can solve the problems of no one determination, differences in research results, etc.

Inactive Publication Date: 2017-03-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In practice, there is no definite theory and model for the comparison of the strength of swirl under the influence of different factors and the dissipation length of swirl (or the length of propagation).
Most of the existing theories are based on the research of numerical simulation, but there are some differences between the research results and the actual situation

Method used

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  • Characteristic evaluation device and characteristic evaluation method for helical flow fields
  • Characteristic evaluation device and characteristic evaluation method for helical flow fields
  • Characteristic evaluation device and characteristic evaluation method for helical flow fields

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Embodiment Construction

[0044] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0045] The technical problem to be solved by the invention is that it is difficult to evaluate the characteristics of the spiral swirl in the prior art. In order to solve the above technical problems, an embodiment of the present invention provides a device for evaluating characteristics of a helical flow field. On the basis of this device, the characteristics of the helical flow field generated according to...

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Abstract

The invention discloses a characteristic evaluation device and a characteristic evaluation method for helical flow fields. The characteristic evaluation device comprises a flow velocity measuring device used for measuring the tangential flow velocity of a helical flow field in a fluid at a measured position, and a controller used for evaluating the characteristics of the produced helical flow field according to the tangential flow velocity. The invention provides a device for real-time continuous evaluation of the characteristics of a helical flow field, which is safe and reliable, highly accurate, easy to use, and low in cost. With the device, the characteristics of a helical flow field produced as needed can be evaluated effectively and accurately.

Description

technical field [0001] The present invention relates to the technical field related to the evaluation of the spiral flow field, in particular to a device for evaluating the characteristics of the spiral flow field, and also to a method for evaluating the swirl intensity of the spiral flow field based on the device, and a method based on the device. Evaluation method of the swirl dissipation length of the helical flow field of the device. The invention is particularly suitable for evaluating and studying the swirl intensity and swirl dissipation length (attenuation characteristics) of the spiral flow field generated in various pipelines or annular spaces. Background technique [0002] During production practice, it is often encountered that there is a spiral flow field in the flow area (especially in the pipe or annulus). The swirl intensity of the helical flow field is usually a factor of concern, and its magnitude is closely related to the boundary conditions, initial cond...

Claims

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Application Information

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IPC IPC(8): G01P5/06
Inventor 张晋凯周仕明杨红歧陶谦方春飞
Owner CHINA PETROLEUM & CHEM CORP
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