Pipeline flow distribution method
A flow distribution and pipeline technology, which is applied in the field of aviation ventilation pipeline flow calculation, can solve the problems of large errors in the pipeline flow distribution method, and achieve the effect of precise distribution
Pending Publication Date: 2022-07-05
西安奥若特材料技术有限公司
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Problems solved by technology
[0004] The invention provides a pipeline flow distribution method to solve the technical problem of large error in the pipeline flow distribution method in the prior art
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[0022] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.
[0023] In the description of the present invention, it should be noted that, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inside" "," "outside", "front end", "rear end", "head", "tail" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and The description is simplified rather than...
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The invention relates to a pipeline flow distribution method, and belongs to the technical field of aviation ventilation pipeline flow calculation, and the method comprises the steps: firstly determining the total air inlet flow Gt of a ventilation pipeline air source, opening a to-be-measured air outlet, closing other air outlets, and obtaining the dynamic pressure P of the to-be-measured air outlet at the total air inlet flow Gt; determining the calculated flow G of the to-be-measured air outlet at the moment according to the dynamic pressure P, drawing a flow calibration curve of the to-be-measured air outlet by taking the dynamic pressure P as a vertical coordinate and the total air inlet flow Gt as a horizontal coordinate, repeating the steps to draw the flow calibration curves of all the air outlets, opening all the air outlets, and respectively measuring the dynamic pressure values of all the air outlets, and the equivalent flow Gd of each air outlet is determined according to the flow calibration curve of each air outlet, and the outlet flow of each air outlet is adjusted, so that the problem that the outlet flow distribution error of the aviation ventilation pipeline is large can be solved.
Description
technical field [0001] The invention belongs to the technical field of air ventilation pipeline flow calculation, in particular to a pipeline flow distribution method. Background technique [0002] The aviation ventilation pipeline has several air outlets. The outlet flow of each air outlet is different. It is necessary to accurately distribute the outlet flow of each air outlet. At present, the conventional distribution method used in aviation ventilation pipelines is obtained by multiplying the flow rate by the flow cross-sectional area. The flow rate is used as the outlet flow rate of the air outlet. This method is only suitable for the ideal state, that is, the steady-state flow rate. However, in the actual situation, the flow rate is not uniform in the pipeline section, and the flow rate obtained by this method has a large error. As a result, the flow distribution of each outlet of the pipeline is inaccurate. [0003] Therefore, a pipeline flow distribution method with...
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Login to View More IPC IPC(8): G01F1/34G01F1/50
CPCG01F1/34G01F1/50
Inventor 耿金红
Owner 西安奥若特材料技术有限公司