Solar heat collector and water heater

Abstract

The invention relates to a solar heat collector which is provided with an upper collecting pipe, a lower collecting pipe, a liquid draining pipe and a liquid feeding pipe, wherein the upper collecting pipe is horizontal; the bottom of the lower collecting pipe is horizontal; the liquid draining pipe is connected with one end of the upper collecting pipe; the liquid feeding pipe is connected with one end of the lower collecting pipe at bottom; a metal heat collecting plate with a densely arrayed inner runner is arranged between the upper collecting pipe and the lower collecting pipe; the inner runner of the metal heat collecting plate is communicated with the upper collecting pipe and the lower collecting pipe; uniform fine pipes are arrayed in the inner runner of the metal heat collecting plate; and the section areas of the fine pipes are 3.5-6 square millimeters. A solar water heater is connected with a water tank of a double-capacity water heater. The efficiency of the solar heat collector with an aluminum plate structure is high and is 20% higher than the efficiency of a common heat collector. The heat storage capacity of the water tank of the solar heat collector is above 4 times that of the water tank in the same volume. The materials and the costs of the heat collector and the water tank of the solar water heater are saved.

Description

technical field [0001] The invention relates to the technical field of solar thermal utilization. Including solar flat plate heat collectors, especially the structure of heat collectors and water heaters (including solar water heater tanks) involving solar energy. Background technique [0002] There are already many applications for solar flat plate heat collectors and water heaters, such as CN200910205280.9 heat collecting plate. Aiming at the defects of series / parallel use pipeline connection difficulty, uneven heat exchange and poor thermal efficiency existing in the existing heat collector plates. Provide a new type of heat collecting plate with convenient connection and operation of multiple heat collecting plates, sufficient heat exchange, and high thermal efficiency. The top of the body is provided with an upper header chamber, the bottom is provided with a lower header chamber, and the middle is provided with a drain chamber. The water inlet pipe and outlet pipe ar...

AI Technical Summary

Problems solved by technology

[0017] The water tanks of solar collectors and water heaters require good insulation effect and a large amount of water to be accommodated. This requires large volume, thick insulation materials, and high cost. The hot water accommodated is actually limited by the maximum temperature.

In order to ensure the supply of hot water, the capacity and volume of the water tank must still be combined. The water heaters and water tanks in the prior art do not involve high-efficiency flat plate collectors\double-capacity water heater tanks

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