Novel solar collector plate core and manufacturing process thereof

Abstract

The invention belongs to the field of solar water heaters, in particular to a heat collection plate core on a solar energy collection plate used in a plate heat exchanger. A novel solar collector plate core consists of two metallic fin plates pressed together; a channel is arranged between the two layers of fin plates and the other parts of the fin plates are pressed into a whole; the outer sidesof the fin plates are plated with a coating for absorbing luminous energy; the fin plates are aluminum plates; and the inside of the channel is provided with a corrosion-resistant metallic branch of which the outer wall is tightly pressed with the sidewall in the channel on the fin plates. In addition, for the plate core, the invention also provides a set of special processing method. The invention can provide a novel fin plate consisting of the corrosion-resistant metallic branch and a heat collection plate; and the plate core manufactured from the fin plate has the characteristics of high strength, good pipeline tightness and durability and low manufacturing cost.

Description

【Technical field】 [0001] The invention belongs to the field of solar water heaters, in particular to a heat collecting plate core on a solar heat collecting plate used in a plate heat exchanger. 【Background technique】 [0002] Solar water heaters are energy-saving devices that absorb the sun's radiant heat and heat cold water for people to use in their lives and production. It is the most mature and advanced product in my country's solar thermal utilization. Provide the people with new water heater products that are environmentally friendly, safe, energy-saving and hygienic. Since the solar water heater is exposed outdoors for many years, it puts forward a severe test for the selection of water tanks and brackets. It must be resistant to corrosion, cold and heat, and not easy to rust. Therefore, some of its materials are stainless steel, and some are aluminum alloys. Due to the difference in solar radiation between the south and the north, the design principle is to absorb...

AI Technical Summary

Problems solved by technology

Its structure is a copper-aluminum composite board composed of pressed copper tubes and aluminum plates. The middle part of the copper tube is filled with anti-adhesive agent. The middle part is pressurized and inflated by air to obtain the liquid channel in the middle part. One end of the channel of the plate core is soldered and fixed with a copper tube conversion joint, and the other end of the copper tube conversion joint is welded on the end tube in the heat exchange pipeline. The structure of the copper-aluminum composite plate core made by this method is because the copper tube is evenly compounded on the aluminum plate, so the amount of copper used is relatively large, resulting in high material costs; This connection method not only wastes labor, but also has poor reliability due to the poor soldering strength; because the current building is integrated with the building during the construction process, it is harmful to the durability of solar energy equipment. The performance requirements are very high, and the board core made by the above method is not only difficult to meet the use requirements in terms of strength

The above-mentioned problems have existed in this industry for a long time, and a very effective technical solution has not been obtained so far

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