Phase-change heat storage water tank used for solar water heater

A technology for solar water heaters and phase change heat storage, which is applied in the direction of solar thermal power generation, solar thermal devices, heat storage equipment, etc., and can solve the problems of affecting the water temperature of the water tank, limiting the scope of application of solar water heaters, and affecting heat storage capacity, etc.

Inactive Publication Date: 2010-07-21
刘伟杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the working temperature of solar collectors is greatly affected by seasons and light conditions. For example, in winter or cloudy days, the working temperature of solar collectors will drop significantly, which will affect the water temperature of the water tank and then affect its heat storage capacity.
This defect of traditional water tanks has greatly limited the scope of application of solar water heaters

Method used

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  • Phase-change heat storage water tank used for solar water heater
  • Phase-change heat storage water tank used for solar water heater
  • Phase-change heat storage water tank used for solar water heater

Examples

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Embodiment Construction

[0010] figure 1 A schematic cross-sectional view of a central phase-change heat storage tank 100 is given, which is one of the embodiments of the present invention. It consists of metal shell 101, heat insulating material 102, water tank liner 103, water storage 104, phase change heat storage material 105, metal cylinder 106 for containing phase change heat storage material, and glass vacuum tube interface 107. The only difference between this embodiment and the traditional solar water heater water tank suitable for vacuum tubes and vacuum tube heat pipes is that a metal cylinder 106 filled with a phase-change heat storage material 105 is installed at its center. Therefore, it can be used in vacuum tubes and vacuum tube heat pipe solar water heaters in place of traditional water tanks without hindrance.

[0011] figure 2 The second embodiment of the present invention is a schematic cross-sectional view of a sandwich type phase change heat storage tank 200 . It consists of ...

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Abstract

The invention relates to a phase-change heat storage water tank used for a solar water heater, which is characterized that the phase-change heat storage water tank has excellent low-temperature section heat storage capacity and can effectively improve the working efficiency of the solar water heater on cloudy days and in winter.

Description

Technical field [0001] The invention relates to a phase change heat storage tank suitable for solar water heaters, belonging to the technical field of environmental protection and energy saving. Background technique [0002] The water tank is one of the important parts of the solar water heater, which is responsible for storing the thermal energy collected by the solar collector. In a traditional solar water heater tank, heat energy is stored in the form of sensible heat of water, that is, under the condition of a given tank volume, the higher the water temperature, the more heat stored. However, the working temperature of solar collectors is greatly affected by seasons and light conditions. For example, in winter or cloudy days, the working temperature of solar collectors will drop significantly, which will affect the water temperature of the water tank and then affect its heat storage capacity. . This defect of traditional water tanks has greatly limited the scope of app...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/46F28D20/02
CPCY02E10/40Y02E70/30Y02E60/145Y02E60/14
Inventor 刘伟杰
Owner 刘伟杰
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