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Snow making device of bogie accumulated snow icing wind tunnel test system

A wind tunnel test and bogie technology, applied in the field of rail vehicles, can solve the problems that the accuracy of snow and icing test results in the bogie area cannot be guaranteed, the mixing of ice, snow and airflow is uneven, and the meteorological environment of wind blowing snow cannot be truly simulated. , to achieve the effect of improving accuracy, mixing evenly and avoiding accumulation

Active Publication Date: 2021-06-25
CENT SOUTH UNIV
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Problems solved by technology

[0005] The existing snow and icing low temperature wind tunnel test system in the bogie area of ​​the train has uneven mixing between ice, snow and airflow, which cannot make the ice, snow and airflow form a uniform wind blowing snow, cannot truly simulate the meteorological environment of wind blowing snow, and cannot guarantee steering Accuracy of snow and icing test results in shelf area

Method used

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  • Snow making device of bogie accumulated snow icing wind tunnel test system
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  • Snow making device of bogie accumulated snow icing wind tunnel test system

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Embodiment Construction

[0033] In order to facilitate the understanding of the present invention, the present invention will be described more fully and in detail below in conjunction with the accompanying drawings and preferred embodiments, but the protection scope of the present invention is not limited to the following specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0034] Unless otherwise defined, all technical terms used hereinafter have the same meanings as commonly understood by those skilled in the art. "First", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only for the convenience of distinguishing corresponding components. Likewise, words like "a" or "one" do not indicate a limitation of quantity, but indicate that there is at least on...

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Abstract

The invention discloses a snow making device of a bogie snow accumulation and icing wind tunnel test system. The snow making device comprises an axial flow fan arranged on a power section of the bogie snow accumulation and icing wind tunnel test system. A surface air cooler is arranged in front of the air inlet end of the axial flow fan, and a plurality of supercooled water nozzles are arranged on the periphery of the air outlet end of the axial flow fan in the circumferential direction of the axial flow fan. According to the snow making device, the axial flow fan is arranged, the surface air cooler is arranged in front of the air inlet end of the axial flow fan to cool airflow, and low-temperature airflow is formed and enters the axial flow fan; multiple supercooled water nozzles are arranged on the periphery of the air outlet end of the axial flow fan in the circumferential direction of the axial flow fan, supercooled water sprayed out of the supercooled water nozzles forms ice and snow when encountering low-temperature airflow, and compared with the mode that snow is made outside a wind tunnel and then conveyed into the wind tunnel, the ice and snow can be evenly mixed with the airflow; in addition, the supercooled water nozzles are circumferentially arranged along the periphery of the air outlet end of the axial flow fan, so that ice and snow are formed in the cross section area of the whole wind tunnel flow channel, and the mixing uniformity of the ice and snow and airflow is improved.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a snowmaking device of a bogie snow and icing wind tunnel test system. Background technique [0002] As an important national infrastructure, rail transit is in the backbone position in the comprehensive transportation system and has an important impact on social and economic development. The rail transit system has significant advantages such as low energy consumption, small footprint, and light environmental pollution, and stands out among many transportation methods. [0003] my country's regional span is large, and rail trains need to adapt to complex and changeable operating environments such as strong sandstorms and strong snowstorms. In the cold winter, some areas such as Northeast my country, northern Xinjiang and the Qinghai-Tibet Plateau have heavy snowfall, which brings a series of special problems to the construction and operation of rail transit. Among them, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/08G01M9/04
CPCG01M17/08G01M9/04
Inventor 高广军张琰王田天姜琛张洁王家斌
Owner CENT SOUTH UNIV
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