Novel linkage heliostat

A heliostat and linkage technology, applied in the direction of using feedback control, etc., to reduce the torsional moment, reduce the cost, and ensure the tracking accuracy.

Active Publication Date: 2015-04-01
STATE GRID CORP OF CHINA +3
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  • Abstract
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[0025] The present invention will be further described below in conjunction with the drawings. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

[0026] The first embodiment of the present invention: Figure 1 to Figure 7 As shown, a new type of linkage heliostat is characterized in that it includes an altitude angle drive mechanism 31, which drives at least two mirror modules 21 to perform an altitude angle rotation movement together, and the altitude angle drive mechanism 31 is located in the middle position, and on both sides of the height angle drive mechanism 31 are mirror modules 21.

[0027] The mirror module 21 includes a mirror module support column 114, a mirror module support foot 115, a moment bearing seat 41, a self-aligning ball bearing 42, a moment shaft sleeve 44, a moment flange 43, and a moment shaft gland 17 , The moment...

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Abstract

The invention discloses a novel linkage heliostat. The novel linkage heliostat is characterized by comprising an elevation angle driving mechanism, wherein the elevation angle driving mechanism drives at least two reflector modules to commonly do elevation angle rotation movement. The novel linkage heliostat employs combined motion setting of the multiple reflector modules, unit reflectors are connected in series through a torque axis to form a reflector module, the multiple reflector modules are connected through flange discs, the multiple reflector modules are driven to simultaneously move by employing the elevation angle driving mechanism, through reducing height of the reflector modules and the reflection area of the reflector modules to reduce wind load, weight of the reflector modules per a reflection area unit is reduced, mounting and debugging difficulty is reduced, relevant cost is reduced, moreover, the novel linkage heliostat can guarantee tracking precision of multiple unit reflectors in the elevation angle direction, so cost of the elevation angle driving mechanism is further reduced.

Description

technical field [0001] The invention relates to a solar heat utilization and thermal power generation device, in particular to a novel linkage heliostat. Background technique [0002] At present, in the field of solar thermal power generation, tower-type thermal power plants have the advantages of high concentration ratio and high power generation efficiency. A tower-type thermal power station is a mirror field composed of multiple heliostats, which focus sunlight onto the surface of the heat absorber on the tower. The cost of the heliostats accounts for about 50% of the cost of the power station. According to the calculation of Sandia National Laboratory in the United States, when the cost of heliostats is reduced to US$100 per square meter of reflective area, the cost of solar thermal power generation will be 5.9 cents. At this time, solar thermal power generation will be economically comparable to conventional thermal power generation. Therefore, how to reduce the cost o...

Claims

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Application Information

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IPC IPC(8): G05D3/12
Inventor 张剑寒冯炜王志峰
Owner STATE GRID CORP OF CHINA
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