Solar water heater

Abstract

The invention relates to a solar water heater, which belongs to the technical field of solar water heaters. The solar water heater comprises an outdoor heat insulation water tank, a water feed pipe, a water return pipe, a water feed control valve and a water device. The solar water heater is characterized in that an indoor heat insulation water tank is arranged, a siphon pipe is arranged between the indoor heat insulation water tank and the outdoor heat insulation water tank for connection, the water device is connected with the indoor heat insulation water tank, a control valve is arranged in the siphon pipe, and a drain valve is arranged in the water feed pipe above the water feed control valve. The solar water heater has the advantages that the structure is reasonable and simple, the production and the manufacture are easy, the operation is convenient, frost crack of the water pipes can be avoided in winter, the service performance can be improved, the water resource can be saved, and the operating cost can be reduced. The indoor heat insulation water tank is added, when hot water in the outdoor heat insulation water tank meets the operating requirement, by charging the hot water in the outdoor heat insulation water tank into the indoor heat insulation water tank, the storage capacity of hot water is increased, the heat insulation effect of the water tanks is improved, and the operation is more convenient. The water in the water feed pipe is emptied in winter to prevent icing and avoid frost damage on the water pipes.

Description

technical field [0001] The invention relates to a solar water heater, in particular to a solar water heater structure with upper and lower thermal insulation water tanks, and belongs to the technical field of solar water heaters. Background technique [0002] Solar water heaters have been used by more and more families or units. The existing solar water heaters are composed of outdoor thermal water tanks, water supply pipes, return pipes, water supply control valves, and water heaters. Outdoor thermal water tanks are generally installed on the roof. , the upper water pipe and the return water pipe are respectively connected to the outdoor thermal water tank, the return pipe is connected to the upper part of the outdoor thermal water tank, and the top of the outdoor thermal water tank is provided with a ventilation hole. The water supply pipe is also a water supply pipe, which is not only a water supply but also a water pipeline, and a water supply control valve and a water d...

AI Technical Summary

Problems solved by technology

Existing solar water heaters are generally a water tank. Some solar water heaters in the early days had relatively small water tanks. Families with a large population often had insufficient hot water. In normal use, the water pipes are easy to freeze, crack and damage, which will increase maintenance costs

Every time the hot water in the solar water heater is used, the water in the water pipe is generally cold water, and a part of the cold water needs to be released before it can be used. The cold water in the water pipe will continue to consume the heat in the water tank, reducing the insulation effect of the water tank and wasting water resources. , increasing the cost of using

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