A solar water heater with intelligent control of light power and water replenishment constant temperature

Abstract

The invention discloses a light acceptance power and water supply constant-temperature intelligent control solar water heater. The solar water heater comprises a controller, a heat collection panel, awater storage tank, a fixing frame and a driving motor. The heat collection panel is in pivot joint with the fixing frame. The driving motor is suitable for driving the heat collection plate to rotate. A heat exchanger and an electric heater body are arranged in the water storage tank. A circulation pump is arranged in a heating pipeline communicating between the heat collection plate and the heat exchanger. An electromagnetic proportional valve, a flow sensor and a temperature sensor are arranged on a cool water input pipeline of the water storage tank. When the water temperature of the water storage tank reaches a preset value, the controller controls the heat collection plate to rotate so that the light acceptance power of the heat collection plate can be decreased to the minimum, thewater temperature is prevented from increasing, and incrustation is prevented from being accumulated on the water storage tank and the heat exchanger; and when the water level is too low in the waterusing process by users, the controller conducts automatic water supply and starts the electric heater body, thus, the water temperature of supplied cool water at the same time period is increased to the water temperature of the water storage tank, required heat is equal to heat generated by the electric heater body, after cool water is supplied, the water temperature of the water storage tank is kept constant, and water is used conveniently.

Description

technical field [0001] The invention relates to a solar water heater, in particular to a solar water heater with intelligent control of light receiving power and water replenishment constant temperature, which can adjust the light receiving power of a heat collecting plate, intelligently control water temperature, effectively avoid scale generation, and provide water replenishment with constant temperature for convenient water use. Background technique [0002] In recent years, solar water heaters have an electric heating function, which can be used normally even in rainy days, which is very convenient; and it also has an automatic water replenishment function, which automatically replenishes water when the water level in the water tank is too low to prevent the solar water heater from being "dried up". "burning", resulting in solar damage. As the use time increases, scale will gradually form on the inner wall of the water storage tank and the heat exchanger of the solar wat...

AI Technical Summary

Problems solved by technology

As the use time increases, scale will gradually form on the inner wall of the water storage tank and the heat exchanger of the solar water heater, and the scale will accumulate more and more, resulting in smaller and smaller volumes of the water storage tank, blockage of the water outlet, damage to the valve, damage to the shower head, etc.

The scale on the heat exchanger makes the heat exchange efficiency low, and it is easy to cause the temperature of the working medium in the heat collecting plate to be too high, especially in summer, which will damage the heat collecting plate and even cause an explosion

When the user uses hot water, when the water level is lower than the critical low water level, the solar water heater will automatically replenish water, and the addition of cold water will make the water temperature of the solar water heater lower and lower. In order to obtain a suitable water temperature, the user needs to constantly adjust the cold and hot water. ratio, even the water temperature is too low to be suitable for use

For example, in the process of bathing, the water level is too low and the water temperature is too low due to automatic replenishment, so the bathing can only be ended in a hurry, causing a lot of inconvenience

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