Economic and efficient opening direct current type ice wind tunnel

An ice wind tunnel and efficient technology, applied in the testing of machines/structural components, measuring devices, instruments, etc., can solve the problems of long test period and high cost, and achieve the effect of low test cost, low manufacturing cost and simple process

Inactive Publication Date: 2015-05-20
TIANJIN UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] In order to solve the technical problems in the known technology, the present invention provides an economical and efficient open-flow direct-flow ice wind tunnel, which not only overcomes the shortcomings of large-scale ice

Method used

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  • Economic and efficient opening direct current type ice wind tunnel
  • Economic and efficient opening direct current type ice wind tunnel
  • Economic and efficient opening direct current type ice wind tunnel

Examples

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Example Embodiment

[0019] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples, and detailed descriptions are as follows with accompanying drawings:

[0020] See Figure 1 ~ Figure 4 , An economical and efficient open-ended direct current ice wind tunnel, including an air inlet 1, a power section 2, a diffusion section 3, a stabilization section 4, an ice and snow particle generation section 5 and a test section 7 connected in sequence.

[0021] The ice and snow particle generation section 5 is provided with a liquid nitrogen spray head 14 and a pneumatic spray head 15. The liquid nitrogen spray head 14 is connected to a liquid nitrogen source 10 through a liquid nitrogen pipeline 17 to form a liquid nitrogen refrigeration system 8, and the pneumatic spray head 15 passes The mixing pipeline is connected with the pressure gas source 11 and the pressure water source 12 to form a water particle generation system 9. A ...

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Abstract

The invention discloses an economic and efficient opening direct current type ice wind tunnel, which comprises an air inlet, a power section, a diffusion section, a stabilization section, an ice and snow particle generating section and a test section in sequential connection, wherein a liquid nitrogen spray head and a pneumatic spray head are arranged in the ice and snow particle generating section, the nitrogen spray head is connected with a liquid nitrogen source through a liquid nitrogen pipeline for forming a liquid nitrogen refrigeration system, and the pneumatic spray head is connected with a pressure air source and a pressure water source through a mixing pipeline for forming a water particle generating system; a fan is arranged in the power section. The economic and efficient opening direct current type ice wind tunnel has the advantages that the process is simple, the single-time test cost is low, the test efficiency is high, and the manufacturing cost is low. The defects that the large-scale ice wind tunnel needs to be provided with large-scale refrigeration deicing equipment, the cost is high, and in addition, the test period is long are overcome. The requirements of ordinary ice and snow particle fluid teaching and scientific research and experiments can also be met.

Description

technical field [0001] The invention relates to an economical and efficient open-flow direct-flow ice wind tunnel, which can be used for the research on the flow of ice crystal-containing particles in the field of aerospace and the simulation of the drift of large-span building roofs and surrounding wind-induced snow in the field of building structure engineering. Background technique [0002] A wind tunnel is a pipe-shaped experimental device that can artificially generate and control airflow to simulate the flow of air around an aircraft or object, measure the effect of airflow on an object, and observe physical phenomena. Effective tool. Wind tunnel tests not only play an important role in the research and development of aviation and aerospace engineering, but also play an increasingly important role in transportation, housing construction and other fields with the development of industrial aerodynamics. It has the following significant advantages: ① It can control the e...

Claims

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Application Information

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IPC IPC(8): G01M9/02
Inventor 刘红波卢杰陈志华
Owner TIANJIN UNIV
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