Composite paraboloid solar collector

A compound paraboloid and collector technology, which is applied to solar collectors, solar collectors using working fluid, heating devices, etc., can solve the problems of high initial cost, high failure rate of vacuum tubes, vacuum leakage, etc., and achieve thermal insulation. Good function, reducing heat dissipation and effective absorption

Inactive Publication Date: 2015-10-21
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology

Most of the receiving devices used in the current linear concentrating solar energy devices are straight-through vacuum tube type CPC reflective concentrating receiving devices. Since the outer layer of the metal receiving tube is wrapped with

Method used

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  • Composite paraboloid solar collector
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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] See attached figure 1 , the compound parabolic heat collector of the present invention includes a Fresnel reflection concentrating array 1, a cavity 2, a heat collector 3, a thermal insulation protection layer 4, a secondary reflection mirror 5, an absorption coating 6, a heat collection tube 7, an inner Glass surface 8, outer glass surface 9.

[0021] The heat collector 3 cooperates with the linear Fresnel reflection concentrator array 1 to form a solar focusing reflection system, and the independently fixed heat collector 3 constitutes an energy absorption system, and the outer wall of the heat collection tube 7 absorbing device is coated with a selective absorption coating 6, The heat collector 3 is composed of an inner glass surface 8 and an outer glass surface 9. The lower wall double-layer glass surface and the upper wall surface thermal ...

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Abstract

The invention relates to a composite paraboloid solar collector. The solar collector comprises a Fresnel reflection collecting mirror array and a solar collector body. The Fresnel reflection collecting mirror array is arranged under the solar collector body. A collector part of the solar collector body is a collector pipe, the outer wall face of the collector pipe is coated with an absorption coating, and the upper wall face of the collector pipe is a composite paraboloid composed of a heat-isolation protective layer and a secondary reflection mirror. The lower wall face of the solar collector body is composed of two layers of glass faces. The upper wall face and the lower wall face of the solar collector body define a closed cavity to form a layer of air wall. The two-layer glass design is adopted, and advantages of a composite paraboloid solar collector without heat-isolation measures and advantages of a composite paraboloid solar collector with a vacuum glass pipe are combined; under the situation that heat losses are not reduced, integration complexity of a system is effectively reduced, the structure is simple, manufacturing and operation cost is low, and safety and stability of the solar collector are improved.

Description

technical field [0001] The invention relates to a reflective heat collector device, especially a reflective heat collector device based on linear Fresnel, which is used to improve the efficiency of the heat collector and realize solar energy by reducing heat dissipation between the heat collector and the external environment. Efficient use, improve energy utilization efficiency. Background technique [0002] The global environmental degradation and energy crisis have attracted more and more attention from all mankind. At present, as far as the whole country is concerned, there is an urgent need to develop low-cost, easy-to-use renewable energy utilization technologies. Solar energy will not pollute the environment. It is one of the cleanest energy sources. This is extremely valuable in today's increasingly serious environmental pollution . [0003] China has a vast territory and abundant solar energy resources, so we should vigorously promote the use of solar energy in our...

Claims

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Application Information

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IPC IPC(8): F24J2/10F24J2/24F24J2/46F24S10/70F24S23/70
CPCY02E10/44
Inventor 胡卓焕张乐毅杨欣郭沁王慧杨茉
Owner UNIV OF SHANGHAI FOR SCI & TECH
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