Photovoltaic water heater

Abstract

The invention discloses a daily photovoltaic water heater which is characterized in that an energy collecting device adopts a solar battery connected with an automatic solar battery maximum power point tracker and a DC heat pipe in a water storage barrel, so the installation is very random and convenient, and the water storage barrel can be installed in a washroom; a big water outlet pipe is connected to the front part of a water outlet pipe, and an AC commercial power dynamic electric heating pipe is arranged in the middle of the big water outlet pipe; in a day with strong light, the water-out temperature can reach the required temperature only through the solar energy, whereas, in a day with weak light, the water-out temperature is slightly lower than the required temperature, the AC commercial power dynamic electric heating pipe can automatically heat the water as long as a hot water tap is opened so as to allow the water-out temperature to reach the required temperature; in case of continuous days without light in winter, water in the water storage barrel can be preheated through AC commercial power dynamic electric heating pipe manually or automatically; and as a leakage protect wall is added, the safety of the users can be ensured in case of the failure of routine anti-electric shock measures.

Description

technical field [0001] The invention relates to a solar photovoltaic water heater for daily use, belonging to the field of solar water heaters. Background technique [0002] The solar water heater of prior art, its basic mode all is to use the light energy of the sun to heat the heat-transfer working medium, then transfer heat energy to the water in the water storage tank by the heat-transfer work medium, make the water in the water storage tank heat up; Due to the loss of heat energy in the radiator, it is difficult for the collector to be light and heavy. According to the way in which the thermal energy of the heat transfer working medium is transferred to the water in the water tank, the solar water heaters in the prior art are divided into two categories: in-line type and split type. In-line solar water heaters can only be installed on the roof, and only residents close to the roof can use multi-storey houses and high-rise houses. Split solar water heaters can be divid...

AI Technical Summary

Problems solved by technology

Split solar water heaters can be divided into two categories according to their installation methods: one is one set for each household (one collector for each household, one water storage bucket), the heat collector is installed on the wall that can receive sunlight, and the water storage bucket Installed in the balcony, its main disadvantage is that it is difficult to install and the water storage tank is far away from the toilet; the other is the solar water heater system, where multiple collector groups are installed on the roof, connected with one or more large water storage tanks with pipes, and Equipped with heat transfer working fluid circulation pump and auxiliary heating equipment (boiler, etc.), and then connected to each user with pipelines, and users use hot water meters for measurement. The main disadvantages are high cost, difficult installation, and high operating costs

Images