Hollow chamber type solar energy receiver

Abstract

The present invention relates to cavity type solar energy receiver for tower type solar energy electricity generator, and belongs to the field of solar energy utilizing technology. The solar energy receiver includes concave heat absorbing cavity, inwards notched glass window for receiving sunlight, work fluid inlet pipe and work fluid outlet pipe connected to the heat absorbing cavity, ring cavity around the glass window and connected to the work fluid inlet pipe, and needle tubes arranged regularly onto the surface of the glass surface and connected to the ring cavity and the heat absorbing cavity. When the work fluid flows through the heat absorbing cavity, it is heated while cooling the glass window.

Description

technical field [0001] The invention relates to a solar receiver, in particular to a cavity-type solar receiver suitable for a solar tower thermal power generation device, and belongs to the technical field of solar thermal utilization. Background technique [0002] Solar energy is an inexhaustible renewable energy source. In today's severe energy situation, the development and utilization of solar energy is one of the important ways to realize the diversification of energy supply and ensure the security of energy supply. [0003] Among many solar energy utilizations, the tower type thermal power generation device is undoubtedly a technical device with great competitiveness. Experimental studies in developed countries have proved that solar thermal power generation is an effective way to adapt to large-scale industrial applications. Therefore, vigorously developing solar thermal power generation can not only Providing us with ideal clean energy can also open up a new industr...

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Problems solved by technology

The obvious defects of the above prior art are as follows: (1) adopting the quartz glass cover-shaped member as the window material through sunlight, because it is directly in contact with the high-temperature and high-pressure working fluid, although the flow state design of the fluid provides the cold working fluid It is possible to flow from the surface of the glass cover, but in fact, the real flow of the fluid is much more complicated than the design and expectations, and the pre-conceived result cannot be fully achieved, so the local temperature of the glass cover will be relatively high, which will easily lead to cracking and breaking (2) The further disadvantage is that the receivers only have heat absorption function, and the heat storage function needs to be completed by a heat storage device that does not belong to the receiver, so as to play a role under the condition of insufficient sunlight

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