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Method for calculating parameters of restriction orifice

A flow-limiting orifice and parameter calculation technology, which is applied in calculation, computer-aided design, electrical digital data processing, etc., can solve the problems of medium conveying accuracy decline, inability to fully adapt to different medium conveying states, etc., and reduce test time , the effect of improving the degree of adaptation

Pending Publication Date: 2021-03-16
中科云信息科技(南京)有限公司
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Problems solved by technology

However, due to the fact that the state of medium conveying will change in actual working conditions, the parameters of the restrictor orifice plate calculated according to a certain simulated working condition cannot fully adapt to different medium conveying states, resulting in a decrease in the accuracy of medium conveying

Method used

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  • Method for calculating parameters of restriction orifice

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specific Embodiment approach

[0020] refer to figure 1 , a specific embodiment of the present invention comprises the following steps:

[0021] A. Calculate the corresponding Reynolds coefficient and outflow coefficient for each raw material at different temperatures, different flow rates, and different pipeline inner diameters;

[0022] B. Select the Reynolds coefficient and outflow coefficient closest to the working condition of the restricting orifice to calculate the thickness and aperture of the restricting orifice;

[0023] C, use the thickness and aperture of the flow-restricting orifice calculated in step B to carry out several tests under different working conditions corresponding to the Reynolds coefficient and the outflow coefficient used in step B;

[0024] D. Correct the thickness and aperture of the restrictor orifice according to the test results in step C.

[0025] In step A, there are no less than 3 calculation conditions for each raw material.

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Abstract

The invention discloses a method for calculating parameters of a restriction orifice, which comprises the following steps of: A, calculating a corresponding Reynolds coefficient and an outflow coefficient of each raw material under the conditions of different temperatures, different flow rates and different pipeline inner diameters; b, selecting a Reynolds coefficient and an outflow coefficient which are closest to the use working condition of the restriction orifice to calculate the thickness and the aperture of the restriction orifice; c, using the thickness and the aperture of the restriction orifice calculated in the step B to perform a plurality of tests under the working condition different from the Reynolds coefficient and the outflow coefficient used in the step B; and D, correcting the thickness and the aperture of the restriction orifice according to the test result in the step C. By means of the technical scheme, defects in the prior art can be overcome, and the adaptation degree of parameter setting of the restriction orifice to different working conditions is improved.

Description

technical field [0001] The invention relates to the field of petrochemical technology, in particular to a method for calculating parameters of a flow-restricting orifice. Background technique [0002] The petrochemical industry basically adopts pipeline transportation, and pipeline transportation often uses flow-limiting orifice plates to limit the flow of the medium. The parameters such as the opening size and thickness of the flow-limiting orifice plates need to be determined through corresponding experiments and calculations. However, since the state of medium conveying will change in actual working conditions, the parameters of the restrictor orifice plate calculated according to a certain simulated working condition cannot fully adapt to different medium conveying states, resulting in a decrease in the accuracy of medium conveying. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for calculating the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/10G06F113/14
CPCG06F30/10G06F2113/14
Inventor 李波
Owner 中科云信息科技(南京)有限公司
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