Solar water heater and auxiliary electric heating device and use method thereof

Abstract

The invention discloses a solar water heater and an auxiliary electric heating device and a use method thereof, and belongs to the field of solar water heaters. The solar water heater and the auxiliary electric heating device and the use method thereof solve the problem that because the heating temperature of existing solar water heaters is low in winter or on cloudy days and cold water existing in water conveying pipes needs to be drained before use, waste is caused. The auxiliary electric heating device comprises a box body, a heater arranged in the box body, a control system, a water outlet pipe and a water inlet pipe, wherein the water outlet pipe and the water inlet pipe are arranged on the box body; one end of the water inlet pipe is connected to the box body, and two branch water inlet pipes are arranged at the other end of the water inlet pipe; the control system comprises a sensor and switches controlling opening and closing of the water inlet pipe and the branch water inlet pipes; the sensor is arranged in the box body. According to the solar water heater and the auxiliary electric heating device and the use method thereof, the problem that the water temperature of the existing solar water heaters is low in winter or on cloudy days can be effectively solved, and the cold water existing in the water pipes can be effectively saved. In addition, the solar water heater and the auxiliary electric heating device and the use method thereof have the advantages of saving the energy, being high in efficiency and protecting the environment.

Description

technical field [0001] The invention belongs to the field of solar water heaters, and in particular relates to a solar water heater and its auxiliary electric heating device and usage method. Background technique [0002] Solar water heaters use heat collectors to convert the light energy of solar radiation into heat energy to heat water from low temperature to high temperature, so as to meet the hot water use in people's daily life. At present, my country has become one of the largest solar water heater production and sales countries in the world, and its annual output is almost the sum of the production of all countries in the world. According to the "2013-2017 China Solar Water Heater Industry Production and Marketing Demand and Investment Forecast Analysis Report", my country is currently the country with the largest production and usage of solar water heaters in the world. In 2011, the output of solar water heaters in my country was about 58 million square meters. It i...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that the existing solar water heater has a low heating temperature in winter or cloudy days, and the cold water in the delivery pipe needs to be discharged before use to cause waste, the present invention provides a solar water heater and its auxiliary electric heating device and usage method, which can effectively avoid The solar water heater has the problem of low water temperature due to winter or cloudy days, and at the same time can effectively save the cold water in the water pipe, which has the advantages of energy saving, high efficiency and environmental protection

Images