Sectional water feeding type solar water heater

Abstract

The invention discloses a sectional water feeding type solar water heater. A water storage tank (1) is connected with two water outlets, one water outlet is positioned in the top end of the water storage tank and connected with a water return pipe (4) through a pipeline, and a water outlet valve SV1 is arranged on the pipeline of the water outlet; the other water outlet is positioned in the middleof the water storage tank and connected with the water return pipe through a pipeline, and a water outlet valve SV2 is arranged on the pipeline of the water outlet; water of the water return pipe flows to a water bucket (2), and the top end of the water bucket is connected with a movable arm (5) used for controlling a travel switch SQ to be switched on and switched off; and the solar water heaterfurther comprises a thermistor Rt1, a photoresistor Rs1 and a peripheral circuit, wherein the thermistor Rt1 is mounted in the water storage tank and used for sensing the water temperature, the photoresistor Rs1 is used for sensing the illumination intensity, and the peripheral circuit is connected with the thermistor Rt1, the photoresistor Rs1, the water outlet valve SV1, the water outlet valveSV2, a water inlet valve SV3 and the travel switch SQ. According to the solar water heater, the water feeding level can be automatically selected according to the illumination intensity of sunlight and the water temperature condition.

Description

technical field [0001] The invention relates to a solar water heater, in particular to a solar water heater for water supply in sections, and belongs to the technical field of tap water supply. Background technique [0002] Solar water heater is a device that uses sunlight to heat water. The conversion of solar energy into heat mainly relies on vacuum heat collecting tubes. Using the principle of hot water floating and cold water sinking, the water generates microcirculation to achieve the required hot water, which is energy-saving and environmentally friendly. [0003] Now many families have installed solar water heaters, but the water storage tanks of many solar water heaters use floating balls to control the water level of the water tank, but such water storage tanks are often kept full of water, and the entire water storage tank is filled with water, which makes spring, When there is not enough sunlight in autumn or winter, the water temperature cannot rise to the set te...

AI Technical Summary

Problems solved by technology

[0003] Now many families have installed solar water heaters, but the water storage tanks of many solar water heaters use floating balls to control the water level of the water tank, but such water storage tanks are often kept full of water, and the entire water storage tank is filled with water, which makes spring, When there is not enough sunlight in autumn or winter, the water temperature cannot rise to the set temperature, resulting in the situation that the water is too cold to shower normally

In addition, the current water supply methods of solar water heaters generally adopt the following two methods. One is to directly supply water. This method requires someone to wait for it to be filled with water. Original, it is not very convenient to operate, and if you do not pay attention, the water in the water storage tank will flow out when it is full, resulting in a waste of water; the second is the water level probe monitoring, this method does not require people to wait by the side, but when the probe When scale is formed on the surface or electrolysis occurs, the probe will lose its function due to the decrease in sensitivity

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