Wind tunnel pre-cooling device utilizing outdoor low-temperature environment
A low-temperature environment and wind tunnel technology, applied in the field of building snow load, can solve the problems of not using the low-temperature environment directly, high energy consumption cost, and achieve the effect of reducing cost and power consumption
Pending Publication Date: 2021-09-17
HARBIN INST OF TECH
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Problems solved by technology
[0010] The purpose of the present invention is to propose a wind tunnel pre-cooling device using outdoor low-temperature environment to solve the problem that existing wind tunnels need to produce low-temperature air through air-conditioning equipment in the pre-cooling process for pre-cooling of the wind tunnel test section, so that there is no direct use External low temperature environment, energy consumption cost is too high
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[0020] The technical solutions in the embodiments of the present invention will be described in connection with the accompanying drawings in which the drawings in the embodiments of the present invention will become apparent from the embodiments of the present invention, not all of the embodiments of the invention. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.
[0021] Refer figure 1 As shown in the present embodiment, a wind tunnel pre-cooling device using an outdoor low temperature environment is proposed, and the wind cavity includes a test section 3, a diffusion section 4, a power segment 5, a transition section 6, a third corner 7, and fourth. The corner 8, the test section 3, the diffusion section 4, the third corner 7, the fourth corner 8, the power segment 5 and the transition section 6 in times,
[0022] Among them, the wind tunnel pre-cooling device include...
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The invention discloses a wind tunnel pre-cooling device utilizing an outdoor low-temperature environment, which belongs to the field of building snow loads. The wind tunnel pre-cooling device is installed on a transition section of a wind tunnel and comprises an air inlet pipeline and an air outlet pipeline, and the air inlet pipeline and the air outlet pipeline are both communicated with the interior of the wind tunnel and external air. According to the wind tunnel pre-cooling device utilizing the outdoor low-temperature environment, the wind tunnel can be pre-cooled by utilizing the outdoor low-temperature environment in winter in a cold region according to local conditions, the cost of the wind tunnel pre-cooling device is greatly reduced compared with the cost of a pre-cooling mode of other existing similar equipment, and the electricity consumption of each test can be reduced by about 1200 Kw.h through preliminary measurement and calculation.
Description
Technical field [0001] The present invention relates to a wind tunnel pre-cooling device using a low temperature environment in an outdoor low temperature, belonging to the field of building snow load. Background technique [0002] In the context of frequently occurring the world's extreme low temperature skike disasters, buildings caused by snow, and the collapse of structures also increased, and the anti-snow situation of architectural structure is very serious. The large span spatial structure has a light roof structure, the roof area is large, and the snow load accounts for a significant characteristic of the total load ratio. Its design is often controlled by the snow load, belongs to the snow load-sensitive structure. On the other hand, large-scale spatial structures are mostly used in sports venues, airport terminals and railway station station, etc., have a very intensive public building. Therefore, the consequences of large-scale spatial structures often are very serious...
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IPC IPC(8): G01M9/04
CPCG01M9/04
Inventor 范峰张清文莫华美张国龙殷子昂
Owner HARBIN INST OF TECH