Pressure bearing forced circulation solar energy collecting flat roof

Abstract

The disclosed roof is composed of light-passing plate, core of heat collection, heat-protective material, reinforcing steel bar, concrete, circulating pump, connecting pipes, and water can in heat preservation. Light-passing plate is covered on concrete layer, where steel bar, core of heat collection, and heat-protective layer are prefabricated, so as to constitute heat collector. Beam shines blacking to produce heat. Concrete layer passes quantity of heat to the core. Through the heat exchanger, the circulating liquid heats up water. Bulges in ball gap shape or in dentation type are on up face of the light-passing plate to obtain high light transmission rate. Being installed inside water can, division board makes water in low temperature at bottom not influence on temperature of water in high temperature at top of can. The said heat collector is as component of storied building roof. There is no much difference between fabrication cost of the heat collector and cost of general roof.

Description

Technical field [0001] The invention relates to a solar heat collection system that can be matched with a flat roof in solar heat utilization and has the same service life as a building, especially a pressure-bearing forced circulation solar heat collection flat roof that can provide heating heat source and domestic hot water. Background technique [0002] At present, many solar water heater manufacturers are exploring new solutions for the integration of solar energy and buildings, but no one has designed an economical and practical solar heat collecting flat roof with the same life span as the building. The reason is that the vacuum tube solar roof The cost is high, and due to the limitation of the length and service life of the vacuum tube, it cannot be scaled and commercialized. The flat-plate solar water heater has poor frost resistance, cannot be used in winter, and is difficult to be used for heating in winter. Contents of the invention [0003] In order to overcome...

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Problems solved by technology

[0003] In order to overcome the shortcomings of the prior art that the solar water heating device is not closely integrated with the building, the cost is high, and the life is short, the present invention provides a pressure-bearing forced heating device that is a building component and can provide heating heat source and a large amount of domestic hot water. Cyclic solar collector flat roof

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