Novel low-temperature and low-pressure wind speed environment control system

A control system, low pressure technology, applied in heating and ventilation control systems, heating and ventilation safety systems, aerodynamic tests, etc.

Inactive Publication Date: 2010-09-15
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One problem with the return wind tunnel system is that it is difficult to achieve low pressure wind speed environment
Correspondingly, in the current prior art, there is a lack of an effective, practical and economical low temperature low pressure wind speed environmental control system

Method used

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  • Novel low-temperature and low-pressure wind speed environment control system
  • Novel low-temperature and low-pressure wind speed environment control system

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Experimental program
Comparison scheme
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Embodiment Construction

[0016] According to the present invention as figure 1 The novel low-temperature low-pressure wind-speed environment control system of the illustrated embodiment includes a heat-insulating and sealed cabin body 20 and a wind tunnel device 1 .

[0017] The wind tunnel device 1 includes an air inlet section 2 , an axial flow fan 3 , a transition section 4 , a rectifying grille, a convergence section 6 , a straight section 7 , an application section 8 , and an exhaust section 9 . The rotational speed of the axial flow fan 3 is controlled by a frequency converter 13, so that the wind speed of the wind tunnel device 1 can be controlled.

[0018] The wind tunnel device 1 is placed on the frame of a rail car 10 . The rail car can be pushed into the predetermined position in the sealed cabin body 20 by means of the rail 11, and the fan foundation and the corresponding fixed foot 12 are fixed, the whole rail car 10 can be fixed relative to the cabin body 20, the wind tunnel device (1) ...

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PUM

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Abstract

The invention relates to a low-temperature and low-pressure wind speed environment control system. The system is characterized in that the system comprises a sealing chamber body (20), a wind tunnel device (1), convection temperature control parts (25, 22, 31 and 32) and a radiation temperature control part (24), wherein the wind tunnel device (1) is arranged in the sealing chamber body. By matching the direct-current wind tunnel machine in the chamber with the sealing chamber body, a turbine refrigerating unit and a vacuum system, the system can realize various environments, such as normal-pressure and low-temperature icing environment, low-pressure and low-temperature icing environment and the like, can provide axial fan power for regulating the direct-current wind tunnel device, and obtain environment wind speeds to satisfy different requirements. Compared with the conventional wind tunnel, the invention can realize low-pressure and/or low-temperature and wind speed environment control with low cost, and has obvious advantages at the aspects of working power, initial investment and wind speed control. The invention has the advantages of little investment, little energy consumption, complete function, easy flow field control, and the like.

Description

technical field [0001] The invention relates to a novel low temperature and low pressure wind speed environment control system, which can be used to meet the wind speed environment control under low temperature and low pressure. Background technique [0002] In the prior art, the wind tunnel system providing a low temperature environment is a return wind tunnel system. One problem with the return wind tunnel system is that it is difficult to achieve low pressure wind speed environment. Correspondingly, in the current prior art, there is a lack of an effective, practical, and economical low-temperature, low-pressure, and wind-speed environmental control system. Contents of the invention [0003] Aiming at the above-mentioned defects in the prior art, the inventors conducted in-depth research and exploration, and proposed a practical, effective, and economical low-temperature, low-pressure, and wind-speed environmental control system. [0004] According to one aspect of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/02F24F13/02G01M9/02
Inventor 刘猛王浚庞丽萍李骊禄宏志李欣
Owner BEIHANG UNIV
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