Solar heat collector with light-gathering medium-temperature steam and hot water self-emptying function

By adopting a combination design of high-absorption film layer, internal concentrating fin plate and metal heat exchange tube in the solar collector, the problems of winter freezing and medium-temperature application are solved, and efficient and stable heat energy transfer and system stability are achieved.

CN120593410APending Publication Date: 2025-09-05SHANDONG GUANGPU SOLAR ENERGY PROJECT
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Patent Information

Application Number
CN202510895081.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-30
Publication Date
2025-09-05

AI Technical Summary

Technical Problem

Existing solar collectors are prone to freezing in winter and cannot meet the requirements of use in the medium temperature range of industrial thermal applications, and the system stability is low.

Method used

It adopts a selective absorption film layer with high absorptivity and low emission, an inward-focusing fin plate and a large-diameter glass outer tube, combined with metal heat exchange tubes and fin plates for heat exchange. The vacuum collector tube adopts a series-parallel combination mode, with the tube mouth installed downward, and uses a temperature-resistant medium to achieve medium-temperature application. The vacuum layer and getter are used to reduce heat loss.

Benefits of technology

It improves the thermal energy efficiency of a single branch pipe, reduces the system operation pipe resistance, avoids freezing and pipe explosion, and improves the system's operating stability and thermal efficiency. It is suitable for heating projects and industrial heat use.

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Abstract

The invention relates to the technical field of solar heat collectors, in particular to a solar heat collector with a light-gathering medium-temperature steam and hot water self-emptying function, which comprises a vacuum heat collecting tube and a mounting rack, the vacuum heat collecting tube comprises a glass outer tube and a glass inner tube, a vacuum layer is arranged between the glass outer tube and the glass inner tube, and the mounting rack is arranged on the glass outer tube and the glass inner tube. The interior of the vacuum layer is fixedly connected with a reflector, the interior of the glass inner tube is fixedly connected with a fin plate, the fin plate comprises a lower fin and an upper fin, the interior of a sleeving groove is fixedly connected with a heat exchange tube, the interior of the glass outer tube is fixedly connected with a tail clamp, and the outer side of the header is fixedly connected with a mounting frame. And a plurality of vacuum heat collecting pipes are mounted on the surface of the mounting frame. The heat efficiency of an existing system can be improved when the system is applied to heating engineering, the operation stability of the system is improved, later maintenance is reduced, and medium-temperature water supply and steam heat supply can be achieved when the system is applied to industrial heat.
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