Solar heat absorber
A technology of solar heat absorber and heat absorber, which is applied in the direction of solar heat collector, solar thermal energy, solar thermal power generation, etc., can solve the problem of low light-to-heat conversion efficiency, increase the light-to-heat conversion efficiency, and solve the problem of light-to-heat conversion Low efficiency, increase the effect of mutual reflection
Active Publication Date: 2017-07-21
主力能源有限公司
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Problems solved by technology
[0007]
Purpose: In order to overcome the deficiencies in the prior art, the present invention provides a solar heat absorber, which adopts a double trapezoidal compound cavity type, and solves the problem of low light-to-heat conversion efficiency of the cavity type heat absorber
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[0018] The present invention will be further described below in conjunction with specific examples.
[0019] Such as figure 1 As shown, a solar heat absorber includes an inlet pipe 1, a coil pipe 2, an outlet pipe 3, a cavity shell 4, a rock wool insulation layer 5, and a heat preservation shell 6. The cavity shell 4 is a lower open shell, The lower opening is the lighting port, and the inside of the cavity shell 4 is a hollow structure, forming a heat absorber cavity; The rock wool insulation layer 5 is filled between the insulation shell 6, the inlet pipe 1 and the outlet pipe 3 pass through the insulation shell 6, the rock wool insulation layer 5 and the cavity shell 4 in turn, and are connected to the inlet and outlet of the coil 2 respectively Pass.
[0020] In the present invention, the shape of the cavity of the heat absorber is a combination of two trapezoids, and the long sides of the upper and lower trapezoids overlap. As a preferred solution, the ratio of the hei...
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The invention discloses a solar heat absorber which comprises an inlet pipe, coil pipes, an outlet pipe and a cavity outer shell. The cavity outer shell is a lower opening type shell. A lower opening is the daylight opening. The cavity outer shell is internally of a hollow structure to form a heat absorber cavity. The coil pipes are distributed on the inner wall of the cavity along the inner side of the cavity outer shell in a winding mode. The inlet pipe penetrates through the cavity outer shell to communicate with inlets of the coil pipes. The outlet pipe penetrates through the cavity outer shell to communicate with outlets of the coil pipes. The shape of the heat absorber cavity is of a double-trapezoid composite structure which comprises an upper trapezoid and an inverted lower trapezoid. The upper trapezoid coincides with the lower bottom of the lower trapezoid. The upper bottom of the lower trapezoid serves as the lower opening of the cavity outer shell. A rock wool heat preservation layer is arranged outside the cavity and wrapped by a heat preservation outer shell. The inlet pipe and the outlet pipe of the heat absorber penetrate through the rock wool heat preservation layer and the heat preservation outer shell, and the problem that a cavity type heat absorber is low in photothermal conversion efficiency is solved.
Description
technical field [0001] The invention relates to a solar heat absorber, in particular to a double-trapezoid composite cavity heat absorber. Background technique [0002] Solar thermal power generation is one of the effective ways for the development of renewable energy. Solar thermal power generation is to use concentrating solar collectors to collect solar radiation energy with low heat flux density and heat the water in the heat absorber or heat water through other heat transfer media to generate steam, drive the heat engine, and then drive the generator To generate electricity. Internationally, there are three main forms of solar thermal power generation concentrating technology: trough type, tower type and dish type. The trough solar thermal power generation technology is a mature commercial technology, while the tower and dish solar thermal power generation technology is still in the experimental and demonstration stage. [0003] The heat absorber is one of the most i...
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Login to View More IPC IPC(8): F24J2/24F24J2/51F24S10/70
CPCF24S10/70Y02E10/44
Inventor 牛道恒
Owner 主力能源有限公司