Solar water heater with scale cleaning function

Abstract

The invention discloses a solar water heater with a scale cleaning function. The solar water heater comprises a water storage tank of a cylindrical structure, a drainage pipe and a water inlet pipe are arranged on the water storage tank, a fixing tank of a cylindrical structure is arranged on the inner wall of the water storage tank, a rotating shaft is arranged in the water storage tank, an arc-shaped plate is arranged on the rotating shaft, a connecting rod is further arranged on the arc-shaped plate, and a scraper blade is arranged on the connecting rod; a first blade and a plurality of second blades are arranged in the fixing tank, a water outlet pipe is arranged at the top of the fixing tank, and a water inlet pipe is arranged at the bottom of the fixing tank; and a connecting block is further arranged between the drainage pipe and the water storage tank, a cavity is formed in the connecting block, the drainage pipe is in communication with the cavity, a fourth elastic piece and aconnecting pipe are further arranged in the cavity, one end of the fourth elastic piece is connected with the inner wall of the cavity, the other end of the fourth elastic piece is connected with theconnecting pipe, the water storage tank is also provided with a drain outlet communicated with the cavity of the connecting block, a plurality of supporting rods are arranged at the tail end, locatedin the water storage tank, of the connecting pipe, one ends of the supporting rods are connected with the connecting pipe, and plugging rods of conical structures are arranged at the other ends of the supporting rods.

Description

technical field [0001] The invention relates to the technical field of solar water heaters, in particular to a solar water heater with scale cleaning function. Background technique [0002] A solar water heater is a device that uses sunlight to heat water. Solar water heaters are divided into vacuum tube solar water heaters and flat plate solar water heaters. Vacuum tube solar water heaters occupy 95% of the domestic market share. Vacuum tube household solar water heaters are composed of heat collecting tubes, water storage tanks, brackets and other related parts. The conversion of solar energy into heat mainly depends on the vacuum heat collecting tubes. Using the principle of hot water floating and cold water sinking, the water produces microcirculation to achieve the required hot water. Solar water heaters are composed of vacuum heat collecting tubes, stainless steel water tanks and brackets. They are a major industry in the application of solar energy achievements. Co...

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Problems solved by technology

However, because the traditional solar water heater has no cleaning device, a large amount of scale will accumulate in the water storage tank as the use time increases. If it is not cleaned in time, the scale in the water storage tank will accumulate more and more, which not only affects the water supply of the water storage tank As a result, the water temperature in the water storage tank will be heated slowly; at the same time, because the water storage tank of the solar water heater is exposed to the outside, the drain pipes exposed to the outside are very easy to freeze, affecting users to use hot water, and more seriously, the water pipes will freeze. cracked, wasting a lot of water

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