Heat collecting device for collecting heat of disc type or tower type solar reflector

Abstract

The invention relates to a heat collecting device for collecting heat of a disc type or tower type solar reflector. The heat collecting device has the characteristics of being high in heat collectingefficiency, high in heat collecting temperature and wide in range of heating media, and has important meaning in reducing photo-thermal power generation cost and improving the reliability and efficiency of a power plant. The heating heat transfer media can be water, conducting oil, fused salt, supercritical carbon dioxide, hydrogen, helium and the like. The device can be widely applied to the aspects of a drier, a large hot water project, large photo-thermal power generation and the like, can be combined together with a Stirling engine effectively to form a set of novel solar Stirling power generation system which is simple in structure, convenient to mount, flexible to build and short in building period, and has the characteristics of being good in reliability, flexible in power, high inefficiency, environment-friendly and the like.

Description

technical field

[0001] The invention belongs to the technical field of solar heat utilization, and in particular relates to a technology of a heat collecting device used for dish or tower solar reflectors to collect heat. Background technique

[0002] On the one hand, the level of human energy consumption continues to increase, on the other hand, conventional fossil energy is increasingly exhausted, and the pollutant emissions associated with conventional fossil energy are increasingly unable to meet people's demand for future energy. Solar energy, as an inexhaustible new clean energy, is getting more and more attention, and the development of solar energy is making progress day by day.

[0003] Currently popular solar power generation is mainly divided into two forms: photovoltaic power generation and solar thermal power generation. Among them, photovoltaic power generation uses solar panels or battery thin films to receive sunlight and directly convert light energy into e...

Examples

Embodiment 1

[0039] Such as figure 1 with Figure 4 As shown, a heat collecting device for dish or tower solar reflectors includes a heat collecting device 1, which is composed of a pressure-resistant heat exchange cavity 2, a heat pipe 3, and a light collecting head 4.

[0040] The pressure heat exchange cavity 2 is provided with a fluid outlet 20 and a fluid inlet 21. The pressure heat exchange cavity 2 is rolled into a single spiral flow channel by a steel plate, and welded at both ends of the single spiral flow channel. After the upper cover plate 22 and the lower cover plate 23, a single helical channel 24 is formed through which fluid can pass. One end of the single helical channel 24 is connected to the fluid outlet 20, and the other end is connected to the fluid inlet 21. .

[0041] The heat pipe 3 includes a heat absorption section 30 (or an evaporation section) and a heat dissipation section 31 (or a condensation section). Then, through the lower cover plate 23 , heat conducti...

Embodiment 2

[0045] Such as Figure 4 As shown, the heat transfer medium 6 filled in the housing cavity 5 is fine copper powder or nano silicon carbide or nano high temperature resistant alloy powder. For others, refer to Embodiment 1, which will not be repeated here.

Embodiment 3

[0047] Such as Figure 4 As shown, the accommodating cavity 5 is cast with copper or high temperature resistant alloy, so that the heat absorbing section 30 and the focusing head 4 are connected as a whole. For others, refer to Embodiment 1, which will not be repeated here.

technical field

[0001] The invention belongs to the technical field of solar heat utilization, and in particular relates to a technology of a heat collecting device used for dish or tower solar reflectors to collect heat. Background technique

[0002] On the one hand, the level of human energy consumption continues to increase, on the other hand, conventional fossil energy is increasingly exhausted, and the pollutant emissions associated with conventional fossil energy are increasingly unable to meet people's demand for future energy. Solar energy, as an inexhaustible new clean energy, is getting more and more attention, and the development of solar energy is making progress day by day.

[0003] Currently popular solar power generation is mainly divided into two forms: photovoltaic power generation and solar thermal power generation. Among them, photovoltaic power generation uses solar panels or battery thin films to receive sunlight and directly convert light energy into e...

Examples

Embodiment 1

[0039] Such as figure 1 with Figure 4 As shown, a heat collecting device for dish or tower solar reflectors includes a heat collecting device 1, which is composed of a pressure-resistant heat exchange cavity 2, a heat pipe 3, and a light collecting head 4.

[0040] The pressure heat exchange cavity 2 is provided with a fluid outlet 20 and a fluid inlet 21. The pressure heat exchange cavity 2 is rolled into a single spiral flow channel by a steel plate, and welded at both ends of the single spiral flow channel. After the upper cover plate 22 and the lower cover plate 23, a single helical channel 24 is formed through which fluid can pass. One end of the single helical channel 24 is connected to the fluid outlet 20, and the other end is connected to the fluid inlet 21. .

[0041] The heat pipe 3 includes a heat absorption section 30 (or an evaporation section) and a heat dissipation section 31 (or a condensation section). Then, through the lower cover plate 23 , heat conducti...

Embodiment 2

[0045] Such as Figure 4 As shown, the heat transfer medium 6 filled in the housing cavity 5 is fine copper powder or nano silicon carbide or nano high temperature resistant alloy powder. For others, refer to Embodiment 1, which will not be repeated here.

Embodiment 3

[0047] Such as Figure 4 As shown, the accommodating cavity 5 is cast with copper or high temperature resistant alloy, so that the heat absorbing section 30 and the focusing head 4 are connected as a whole. For others, refer to Embodiment 1, which will not be repeated here.

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