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Pitching direction-rotating heliostat model for wind tunnel test

A wind tunnel experiment, pitch direction technology, applied in aerodynamics test, machine/structural component testing, installation and other directions, can solve the problem of not measuring the wind pressure distribution and pulsation characteristics, not considering the impact, etc., to reduce the number of experiments Prep time, reduced production costs, lightweight effects

Inactive Publication Date: 2011-09-07
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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Problems solved by technology

However, most of the heliostat models in these wind tunnel experiments are in the shape of an idealized flat plate, without considering the influence of the support members of the mirror surface on the overall wind effect of the heliostat, and without measuring the wind pressure distribution and pulsation characteristics, and the obtained data are difficult to obtain. Directly guide the design of heliostat products

Method used

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  • Pitching direction-rotating heliostat model for wind tunnel test
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  • Pitching direction-rotating heliostat model for wind tunnel test

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] The embodiment of the present invention is a wind tunnel model of a 100 square meter rectangular heliostat in a tower solar power generation system.

[0020] Overall structure of the present invention is as figure 1 shown. The heliostat wind tunnel model that can rotate at an elevation angle is composed of a mirror reflector 1, a rotating device 2, a rotating shaft 3, a column 4 and a supporting member 5, and the above five parts are all made of plexiglass. The central line of the column 4 and the rotating shaft 3 intersects perpendicularly. A supporting plate 10 is installed on the upper end of the column 4 , and the rotating device 2 is installed on the upper end of the supporting plate 10 . The rotating device 2 is made up of a positioning plate 9 and a flange rotating disc 8, and the positioning plate 9 is connected with the colum...

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Abstract

The invention discloses a pitching direction-rotating heliostat model for wind tunnel test, which is composed of a mirror surface reflector plate (1), a rotating device (2), a rotating shaft (3), a vertical prop (4) and a support member (5), wherein all the components are made of organic glass. The mirror surface reflector plate (1) is formed by jointing flat plates (13) and (14), pressure testing holes (12) are uniformly and symmetrically distributed on front and rear surfaces of the mirror surface reflector plate (1) in order to conduct the measurement for wind pressure distribution and pulsation characteristics. The rotating device (2) is composed of a positioning plate (9) and a flange rotating disc (8), a positioning bolt hole of the positioning plate (9) is linked with a scale slot (19) of the flange rotating disc (8) via a positioning screw (7), the positioning screw (7) can freely slide in the scale slot (19) from 0 degree to 90 degrees so as to lead the model to perform the pitching rotation. The support member (5) is manufactured in the detachable form.

Description

technical field [0001] The invention relates to a heliostat model for wind tunnel experiments, in particular to a heliostat model for wind tunnel experiments that can be rotated in the pitch direction. Background technique [0002] Solar energy is an inexhaustible renewable energy source. Today, as fossil fuels are decreasing year by year and the international energy situation is becoming increasingly severe, the development and utilization of solar energy is one of the important ways to realize the diversification of energy supply and ensure energy security. The basic principle of the tower thermal power generation device is to use many heliostats to reflect solar radiation to the heat absorber placed on the tower, and use the heating medium to generate superheated steam or high-temperature air to drive the generator set to generate electricity. For a 10MW solar tower thermal power station, the maximum distance between the heliostat and the heat absorber can reach 1 km, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/08G01M9/02G02B7/198G02B1/04
Inventor 宫博王志峰白凤武臧春城张剑寒
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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