Method for Producing Hot Water Utilizing Combined Heat Resources of Solar Energy and Heat Pump in the Manner of Heating Water at Multilpe Stages and Accumulating Energy and a Device Especially for Carrying Out the Method

a technology of solar energy and heat pump, which is applied in the field of solar energy, can solve the problems of low solar radiant energy, low energy-flux density, and inability to meet the needs of the user, and achieve the effect of improving the efficiency of the collector, facilitating the use of off-peak electricity, and facilitating the collection
US20100163016A1Inactive Publication Date: 2010-07-01PAN
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
PAN
Publication Date
2010-07-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for producing hot water and a device especially for carrying out the method are provided. The method utilizes combined heat resources of solar energy and heat pump in the manner of heating water at multiple stages and accumulating energy. The device comprises solar energy collector, heat pump, electrical heater, water tank, and control unit. The device also includes water-heating tanks with multiple stages. A heating means with multiple stages at different temperatures is formed either by the solar energy collector or by the collector and the heat pump. The outputting end of the two or more heating stages constituted by the solar energy collector or by the collector and the heat pump is connected through ducts to the corresponding water-heating tanks. A predetermined amount of produced water heated at multiple stages is respectively stored in the water-heating tanks. Compared with the prior art, the present invention is endowed with the performance of making use of the solar energy to the greatest extent and utilizing off-peak electricity more efficiently as a supplementary heating means. Furthermore, the arranging fee of the device is reduced and its adaptation of mounting is improved.
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Description

FIELD OF THE INVENTION

[0001] The present invention relates to a field of utilizing solar energy, and more particularly to a method for producing hot water utilizing combined heat resources of solar energy and heat pump in a manner of heating water at multiple stages and accumulating energy and a device especially for carrying out the method.BACKGROUND OF THE INVENTION

[0002] The sun generates a large amount of energy. The radiant energy reaching the earth's surface from the sun each year equals to the energy generated by about 130 trillion tons of standard coals, but it is still dispersal, discontinuous, and unstable. Although the total amount of solar radiant energy reaching the earth's surface is great, its energy-flux density is very low. So a large area is needed to receive the radiation in order to get a certain radiant power. The discontinuance and instability means that the solar radiant energy is restricted by natural conditions such as days and nights, seasons, geographical la...

Claims

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