Multiphase flow rectifying device

Abstract

The invention relates to a multiphase flow rectifying device which comprises a pipe connecter matched with a fluid pipeline, a spiral body and a flow adjustor, wherein the pipe connecter is provided with an upstream rectifying cavity and a downstream diffusion steady flow cavity; the spiral body is installed in the upstream rectifying cavity, and the flow adjustor is installed in the downstream diffusion steady flow cavity; and the upstream rectifying cavity of the pipe connecter has conicity matched with the spiral body. The fluid in two-phase flow or multiphase flow rotatably flows in the spiral direction and becomes the fluid with evenly distributed media and steady flow rate after being mixed and passing the porous flow adjustor. The invention has simple structure, simple and convenient installation and construction, less abrasion of the spiral body and the flow adjustor, favorable rectifying effect and high reliability and can not block the pipeline for long-term use, is particularly suitable for rectifying the fluid in the two-phase flow or the multiphase flow and can be matched with a flow meter to carry out the flow measurement of the two-phase flow or the multiphase flow.

Description

technical field [0001] The invention relates to an auxiliary device for measuring fluid flow in a pipeline, in particular to a rectifying device for multiphase flow. It is used for two-phase fluid or multi-phase fluid measurement rectification. Background technique [0002] We know that almost all flowmeters require that there must be a sufficient length of straight pipe before and after the installation of the flowmeter. The purpose is to make the medium flowing in the pipeline a stable flow field to ensure the accuracy and stable operation of the flowmeter. . However, in many cases, the above requirements cannot be met, that is, limited by the length of the pipeline and the location of the equipment, especially the flow state of the two-phase flow or multi-phase flow in the pipeline is very complicated, the distribution of each phase fluid is irregular, and the flow velocity Not all are the same. In order to make the two-phase flow or multi-phase flow more evenly distri...

AI Technical Summary

Problems solved by technology

In the research and development of two-phase flow or multiphase flow, the country has invested a lot of manpower, material resources and funds for many years, but it has not achieved significant results so far.

In addition, the rotary vane wheel and porous rectification device used by the applicant, because the shaft core of the rotary vane wheel rotated at high speed is extremely easy to wear and break after long-term use, there are potential safety hazards, and the rotation will be inflexible when encountering dirty fluids. Make the rectification effect unstable

In addition, the rotary vane wheel cannot change the orientation of the fluid direction, so the mixing effect of multiphase fluid is not significant

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