Solar water heater having anti-freezing function

Abstract

The invention discloses a solar water heater having an anti-freezing function. The solar water heater comprises a water storage box, the water storage box and solar water heating pipes are fixed to alight-reflecting plate through supports, the water outlet end of the water storage box is connected with the water inlet ends of the solar water heating pipes, electric heating wires are embedded intothe side wall of an inner cavity of the water storage box and the side walls of inner cavities of the solar water heating pipes, first connecting sleeves are installed at the water outlet end of thewater storage box, first electrodes are arranged on the side walls of the first connecting sleeves, second connecting sleeves are arranged at the water inlet ends of the solar water heating pipes, second electrodes are arranged on the side walls of the second connecting sleeves, the electric heating wires embedded into the side wall of the inner cavity of the water storage box and the electric heating wires embedded into the side walls of the inner cavities of the solar water heating pipes are connected through the first electrodes and the second electrodes, and a box body is arranged on a shell of the water storage box. The solar water heater having the anti-freezing function is simple in structure, low in manufacturing cost, convenient to use, easy to maintain, good in anti-freezing effect and easy to popularize.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to a solar water heater with antifreeze function. Background technique [0002] Solar water heaters are increasingly favored by consumers for their advantages of safety, energy saving, large water volume, wide application and convenient use. But in the cold winter, solar water heaters are easy to freeze. In order to prevent the water tank of solar water heaters and vacuum heat collecting tubes from being damaged by freezing in winter, many manufacturers have introduced products that increase the diameter and length of vacuum heat collecting pipes, but the effect is often not good. The ultra-long and ultra-thick vacuum heat collecting tubes can improve thermal efficiency when exposed to light, but the corresponding increase in water capacity in the tubes requires more solar energy to be absorbed. In practice, the temperature of the hot water is only increased by a few degrees....

AI Technical Summary

Problems solved by technology

Due to the cable pulling control, the pulley runway, shaft winding, wear and other reasons will often cause the control valve to lose control, resulting in freezing of the upper and lower pipes in winter

These antifreezing methods all have the problems of complicated operation and complex structure, and when used in places such as swimming pools and seaside bathing places, energy saving cannot be achieved.

Images