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Heat storage water tank

A hot water storage tank and heat storage cavity technology, applied in heat storage equipment, energy storage, heating devices, etc., can solve the problem of unreasonable shape design of heating liner or jacket, low heat conduction efficiency, and easy use of solar water heaters. Weather, day and night restrictions, etc.

Inactive Publication Date: 2013-01-30
JIANGSU QIZHENG NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Flat-panel solar water heaters mostly use indirect heating. Because the heat transfer medium is relatively viscous, the shape design of the heating liner or jacket is unreasonable, resulting in low heat conduction efficiency.
Moreover, the use of solar water heaters is easily restricted by weather and day and night.
[0003] At present, there are many patents on solar water heater tanks, but there is no water heater tank that can use liquid antifreeze as the heat transfer medium and the heating liner is placed horizontally inside the water tank. Discover

Method used

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Embodiment Construction

[0013] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0014] The hot water storage tank is connected with a flat solar heat collector, the heat storage chamber 5 is filled with phase change heat storage material, and the heating liner 7 is filled with a heat transfer medium with a low boiling point, and the heat transfer medium flows into the flat solar heat collector from the return pipe 9 The device absorbs heat. The heated and vaporized heat-conducting medium enters the heating inner tank 7 after being accelerated from the liquid inlet pipe 8 through the nozzle 6, hits the top of the heating inner tank 7, and liquefies with heat release. The water in the water storage chamber 3 absorbs heat from the heating liner 7 and heats up. The liquefied heat transfer medium flows back from the return pipe 9 to the flat solar heat collector. When the water temperature exceeds 50° C., the phase-change heat stor...

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Abstract

The invention discloses a heat storage water tank. The water tank is characterized in that a heating liner is arranged inside a water tank; a cavity is designed at the top of the heating liner; phase change heat storage media with melting points being about 50 DEG C are filled inside the cavity; media with boiling points being about 30 DEG C are filled in the heating liner; and a convergent-divergent type spray tube is designed. By adopting the design, the circulation speed of heat-conducting media can be increased, the speed of heat exchange between a solar heat collector and the water tank can be increased; when the hot water temperature is higher than 50 DEG C, heat storage materials store plenty of heat absorbed from hot water, and when the water temperature decreases, the heat storage materials release heat to stabilize the water temperature at about 50 DEG C.

Description

technical field [0001] The invention relates to solar heat utilization technology and phase change heat storage technology, in particular to a hot water storage tank for solar water heaters. The water tank is equipped with a heating liner, and the upper end of the heating liner is designed with a phase change heat storage tank. The cavity of the heat storage material, and a nozzle for accelerating the flow rate of the medium is installed inside the heating liner. Background technique [0002] In the field of solar thermal utilization, solar water heaters have appeared in a variety of mature products including vacuum tube water heaters and flat plate water heaters. Flat plate solar water heaters are rapidly opening up the market due to their longer service life and easy installation methods. Flat-panel solar water heaters mostly use indirect heating. Because the heat transfer medium is relatively viscous, the shape design of the heating liner or jacket is unreasonable, result...

Claims

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Application Information

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IPC IPC(8): F24J2/46F28D20/02
CPCY02E10/40Y02E70/30Y02E60/145Y02E60/14
Inventor 王金平徐少凡樊小平
Owner JIANGSU QIZHENG NEW ENERGY
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