U-shaped channel combined heat pipe receiver

Abstract

The invention relates to a U-shaped channel combined heat pipe receiver, which comprises a high-temperature resistant insulating layer, a daylighting hole, a heat pipe group heat absorption section, division plates, a diffuse reflection cone, an aluminum alloy shell, an annular sleeve, a heat pipe group condensation section, an annular radiation absorption rib, an outer wall semi-enclosed airflow baffle plate, an inner wall semi-enclosed airflow baffle plate, a totally-enclosed airflow baffle plate, an air inlet, an air outlet and the like, wherein a high-temperature heat pipe group is centered and arranged annularly and uniformly; the heat pipe group heat absorption section and the heat pipe group condensation section are separated by the division plates; the heat pipe heat absorption section and the annular radiation absorption rib are tightly contacted with each other, and form a U-shaped heat absorption channel together with the diffuse reflection cone; and the heat pipe condensation section is covered by the annular sleeve, and the division plates are internally arranged between adjacent heat pipes to guide air to flow in an S-shaped track. The U-shaped channel combined heat pipe receiver is suitable for a dish-Stirling solar heat generating system with different kinds of power; and compared with the conventional indirect receiver, the U-shaped channel combined heat pipe receiver has the advantages of uniform distribution of heat flow, high heat transfer efficiency, stable system and the like.

Description

technical field [0001] The invention relates to a heat pipe receiver, in particular to a U-shaped channel combined heat pipe receiver. Background technique [0002] Dish-Stirling solar thermal power generation is one of the highest photoelectric conversion efficiency methods in solar thermal power generation technology. It gathers solar radiation into a thermal receiver through a rotating parabolic dish concentrator, and the receiver absorbs the energy and then the The Stirling heat engine realizes the conversion of solar energy into electrical energy. Generally, the power of solar Stirling engines is relatively small, which is suitable for distributed energy utilization and has the potential for large-scale combined grid-connected power generation. In addition, they can also be designed as combined fuel and solar concentrator heating systems, which can use fossil fuels instead of sunlight to continuously generate electricity when there is no sunlight. [0003] The dish so...

AI Technical Summary

Problems solved by technology

The receiver uses several special-shaped high-temperature heat pipes as the heat transfer unit, which improves the operating efficiency and reliability. The light ratio is low, so there will also be the problem of uneven temperature. At the same time, the outer side of the heat pipe in the condensation section of the heat pipe adopts the form of a sleeve to transfer heat. On the one hand, the layout of the bushing leads to a looser arrangement of the heat pipe group on one side of the heat-absorbing cavity, and a significant decrease in the overall heat transfer capacity

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