Household solar water heater with optical electromechanical integration

Abstract

The invention relates to a household solar water heater with optical electromechanical integration, which belongs to the field of solar energy utilization devices and solves the problem of applicability of a household split solar water heater. The household solar water heater comprises a basic structure of the system-wide press-resistance household split solar water heater, a heat collector, a water storage tank (5) with a built-in heat exchange device (6) and a heat conductive working medium and a circulation system thereof, as well as a photovoltaic power supply (16) and a photovoltaic pump(7) driven by the photovoltaic power supply (16) which are used for forced circulation of the heat conductive working medium and form a three-in-one structure with the heat collector, and matching circuits thereof. The household solar water heater has the advantages that the household solar water heater overcomes the deficiencies of the ordinary solar water heater and the conventional household split solar water heater, improves, enriches, ensures and expands the advantages of the two; the three-in-one structure can carry out light-heat conversion and photoelectric conversion simultaneously and synchronously, and supplement collected heat while carrying out the photoelectric conversion; the automatic intelligent control of the forced circulation is safe, reliable, economic, practical and strong in applicability; and the household solar water heater facilitates standard design and mass production, is matched with the corresponding architectural design for construction and installation,is particularly applicable to multi-storey and high-rise residential buildings in cities and can meet the demands of a large number of residents.

Description

technical field [0001] The invention belongs to the field of solar energy utilization devices and relates to a household solar water heater with optomechanical electrical integration. Background technique [0002] Because solar water heaters are clean and pollution-free, and consume almost no conventional energy, one-time investment for long-term application, economical, practical, safe and convenient, they have been widely used and are being further developed; the structure of ordinary integral solar water heaters is mainly composed of solar collectors and The water storage tank is composed of two parts, while the solar collector is composed of all-glass vacuum heat collecting tubes. Running water, it is easy to freeze and crack when used in a severe cold environment. In addition, the pressure bearing capacity of the system is limited. The water storage tank must be placed at a high position higher than the solar collector. When it is insufficient, the water flow is weak a...

AI Technical Summary

Problems solved by technology

[0002] Because solar water heaters are clean and pollution-free, and consume almost no conventional energy, one-time investment for long-term application, economical, practical, safe and convenient, they have been widely used and are being further developed; the structure of ordinary integral solar water heaters is mainly composed of solar collectors and The water storage tank is composed of two parts, while the solar collector is composed of all-glass vacuum heat collecting tubes. Running water, it is easy to freeze and crack when used in a severe cold environment. In addition, the pressure bearing capacity of the system is limited. The water storage tank must be placed at a high position higher than the solar collector. When it is insufficient, the water flow is weak and the application is inconvenient. At the same time, the solar collector and the water storage tank are compactly connected as a whole, which can usually only be installed on the roof of the building. The overall installation depends on the water pipe to connect the solar collector and the water storage tank, but it will bring many difficult problems to solve; the conventional household split solar water heater is separated from the solar collector and the water storage tank, and the heat collecting element of the solar collector Metal heat pipes or U-shaped metal runner vacuum tubes are used, equipped with heat-conducting working medium, and the water storage tank adopts a pressure-bearing water tank with a built-in heat exchanger. The heat-conducting working medium transfers heat to the water in the water storage tank through the heat exchanger. It has the incomparable advantages of ordinary integral solar water heaters. The disadvantage is that the heat-conducting working medium relies on potential difference to achieve natural circulation, so the installation position of the water storage tank must be higher than the solar collector, and the water storage tank and solar collector The closer the distance between the devices, the better, otherwise the heat loss of the heat-conducting working medium will be large, and the circulation flow resistance will be large, making it difficult to operate normally. Although the forced circulation of the heat-conducting working medium can overcome the shortcomings of natural circulation, it involves the use of commercial power. A series of problems such as circulating pumps will not only increase operating costs, but also consume conventional energy and affect safety. Therefore, this split-type household solar water heater has poor applicability and has limited applications so far.

In view of the above-mentioned status quo, although solar water heaters have been commonly used already, they are out of reach for the majority of residents in the city.

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