Plunger type emptying defroster for suction pipe of solar water heater

Abstract

The invention discloses a plunger type emptying defroster for a suction pipe of a solar water heater. The defroster comprises a solar insulating water tank, the suction pipe and a return pipe. The defroster is characterized in that the upper end of the suction pipe extends into the solar insulating water tank, water inlet and outlet and gas inlet and outlet are arranged on a plunger type controller and controlled by a micro low speed motor, and meanwhile, upper hot water is just used by control of a floating ball. According to the plunger type emptying defroster for the suction pipe of the solar water heater, as an emptying device in the suction pipe is arranged in the water tank, the defroster is emptied completely, so that the defrosting effect is improved. In anti-freezing seasons or under normal application, the micro low speed motor is not started, so that the electric consumption is saved. As the floating ball is used to position during water release, water released every time is the hottest water in the water tank, so that the defroster can be widely applied to solar water heaters.

Description

technical field [0001] The invention relates to an improvement of an antifreezing device for an upper water pipe of a solar water heater, in particular to a plunger type antifreezing device for an upper water pipe of a solar water heater. Background technique [0002] Solar water heater is an energy-saving device that uses solar energy to heat cold water into hot water. It is deeply loved by people. Most of the current buildings are equipped with solar water heaters for each household. But solar water heaters are restricted in winter. Because there is always water in the upper water pipe, every winter, the water in the upper water pipe freezes, causing the upper water pipe to be blocked, and the solar water heater cannot be used. At present, the main devices to prevent the upper water pipe from freezing: one is to wrap a heating guide wire on the outer wall of the upper water pipe, and thaw the frozen upper water pipe through electric heating, but this method consumes a lot...

AI Technical Summary

Problems solved by technology

Since there is always water in the upper water pipe, every winter, the water in the upper water pipe freezes, causing the upper water pipe to be blocked, and the solar water heater cannot be used

At present, the main devices to prevent the upper water pipe from freezing: one is to wrap a heating guide wire on the outer wall of the upper water pipe, and thaw the frozen upper water pipe through electric heating, but this method consumes a lot of power and increases the cost of use; Add a conversion solenoid valve at the upper end of the upper water pipe, through the conversion solenoid valve, the interface between the upper water pipe and the water tank is closed, and at the same time connected to the atmosphere, so that the water in the upper water pipe is discharged to achieve the purpose of preventing freezing of the upper water pipe. The disadvantage is: the joint between the upper water pipe and the water tank will still be frozen and frozen, even if the upper water pipe is not frozen, water cannot be delivered to the water tank

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