Novel solar water heater

Abstract

The invention relates to a novel solar water heater, belonging to the technical field of solar utilization technologies and water heaters. The novel solar water heater comprises a solar photovoltaic battery pack, a super capacitor bank, an air energy thermal pump system, a power supply adapter, a heat preservation tank and a controller, wherein the heat preservation tank is used for storing hot water; the controller is used for controlling the operation of the solar water heater; solar energy is converted into electric energy by the solar photovoltaic battery pack; each super capacitor is used for storing the electric energy and driving a thermal pump motor to heat up; the controller starts or stops a thermal pump at proper time according to a set water temperature and set upper and lower limit values of a charging voltage of each super capacitor, can power on or off each solar photovoltaic battery, and can be switched to a mains power heating mode manually; and the power supply adapter is used for converting the electric energy into a current which is applicable to the work of the thermal pump motor. After being practically used, the novel solar water heater is both energy-saving and environment-friendly, is convenient to install and maintain, and is particularly applicable to residential families in apartments (except for at a top floor).

Description

technical field [0001] The invention relates to a novel energy-saving and environment-friendly solar water heater which is convenient for installation and maintenance, and belongs to the technical field of solar energy utilization. Background technique [0002] Solar water heaters and air energy water heaters using various solar collectors have their own characteristics and have been widely used. In order to learn from each other's strengths and achieve the purpose of saving energy as much as possible under the premise of ensuring the use requirements, the patented technology of combining solar energy and air energy has been published. But in these technologies, the air energy heat pump system can only replace the additional electric heater in the ordinary solar water heater, and it can be used as a supplementary heat source when the solar energy is insufficient or when there is no solar energy available. The complexity of the system does not bring the benefit of improving ...

AI Technical Summary

Problems solved by technology

The complexity of the system does not bring the benefit of improving the efficiency of solar energy conversion

[0003] In addition, general solar water heaters are bulky, heavy, and inconvenient for flexible installation, so they can only be installed on the roof.

For non-top-floor residents, in addition to the problems of long pipes, difficult maintenance, and inconvenient water use, there are also the following problems: on the one hand, there is not enough roof space for installation; on the other hand, the roof structure may be damaged during installation. Leaks and objections from top-floor residents

Cold weather will not affect the power generation of solar photovoltaic cells, but will only reduce the heating efficiency of the air energy heat pump system

However, solar cells also have the following disadvantages: the conversion efficiency of solar energy is low, the power supply is very unstable and cannot directly drive electrical appliances

However, limited by the current battery technology, the battery life is too short (mostly only a few hundred charging cycles), the charging efficiency is low, the charging time is long and other shortcomings, which will bring many problems in environmental protection, economy, efficiency, etc.

Therefore, there are no reports on the combination of solar photovoltaic power generation technology and air energy heat pump technology.

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