Finned tube type heat collecting plate, preparation method thereof, heat collector, and water heater

Abstract

The invention relates to a finned tube type heat collecting plate, a preparation method thereof, a heat collector, and a water heater. The finned tube type heat collecting plate comprises a refrigerant tube and a heat absorbing plate; the backlight face of the heat absorbing plate is integrally provided with the refrigerant tube in the axial direction; the two ends of the refrigerant tube extend out of the end face of the heat absorbing plate at the end where the refrigerant tube is located; and the two sides of the refrigerant tube protrude out of the backlight face and the light facing faceof the heat absorbing plate respectively. According to the finned tube type heat collecting plate, the preparation method thereof, the heat collector, and the water heater, the convex part of the refrigerant tube on the light facing face is less than the convex part of the backlight face, the convex parts of the refrigerant tube on the light facing face and the backlight face are plated with a layer of a heat absorbing material as a whole, and the refrigerant tube and the heat absorbing plate are manufactured through the integrated forming technology instead of being connected together; then the layer of the heat absorbing material is plated on the light facing surface of the refrigerant tube and the heat absorbing plate, so that the heat absorbing efficiency of a heat collecting plate isgreatly improved; and the heat collector and the water heater are manufactured, so that the use efficiency is greatly improved.

Description

technical field

[0001] The invention relates to a heat collecting plate, in particular to a wing tube type heat collecting plate and a preparation method thereof, a heat collector and a water heater. Background technique

[0002] The heat collecting plate is a plate that absorbs the sunlight incident through the transparent cover layer, converts > light energy into > heat energy, and transfers heat from the heat collecting fluid. The selective absorption film formed by spraying matt black paint on the surface of the heat collecting plate is generally made of metal with high thermal conductivity, and plastic is also used. The heat collecting plate is also called the absorbing plate, the heat collector, and the heating plate. Collector plates are classified by structure including:

[0003] 1) Tube-sheet type, the tube-sheet type heat-absorbing plate is a heat-absorbing strip that is formed by connecting the row tubes and flat plates in a certain way, as shown in the fi...

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