Solar household water heater

Abstract

The invention discloses a solar household water heater. The solar household water heater comprises a main frame, a heat preservation box is fixedly installed at the top end of the main frame, a plurality of heat collecting pipes are arranged at the bottom of the heat preservation box, the other ends of the heat collecting pipes are fixedly connected to the bottom of the main frame, and an exhaustvalve and an auxiliary rainwater collecting groove are fixedly installed on the outer side wall of the heat preservation box; and the auxiliary rainwater collecting groove is positioned below the exhaust valve, and a square opening is formed in the outer surface of the side, away from the heat preservation box, of the auxiliary rainwater collecting groove. According to the solar household water heater, rainwater is collected through a main rainwater collecting groove and the auxiliary rainwater collecting groove, water is input into the heat preservation box through a connecting pipe, then thewater is used for showering or used for mopping the floor, washing clothes and the like through a household pipeline, and water resources are saved and utilized; and a descaling agent is added into arainwater collecting barrel, the descaling agent is used for circularly cleaning the heat preservation box and the heat collecting pipes, and then sewage is discharged from a water outlet, so that regular clearing work of water scale is convenient, and the problems proposed in the background technology are solved.

Description

technical field [0001] The invention relates to the technical field of solar water heaters, in particular to a solar domestic water heater. Background technique [0002] Solar water heaters are devices that use 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 account for 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, all-glass vacuum tube solar water heaters are widely used in modern life due to their advantages of safety, energy saving, environmental protection, and economy, especially solar water heaters with auxilia...

AI Technical Summary

Problems solved by technology

[0003] However, the long-term use of solar water heaters will form scale on the inner wall of the heat collecting tube. Since the thermal conductivity of the heat collecting tube is stronger than the scale, the scale on the tube wall will cause heat loss and reduce the efficiency of the solar water heater, and prevent the heat collecting tube from transferring heat to cold water. Vacuum tubes Long-term heating will reduce its service life. In addition, the scale will corrode the internal metal and pipe wall, polluting the water in the purifier. It can be seen that it is necessary to remove the scale in the solar water heater regularly. New water heaters It should be descaled and cleaned after one year of use, and then cleaned regularly every three months. However, the water heater is well sealed and the disassembly process is difficult to clean. As a result, most domestic water heaters have never been cleaned.

[0004] China is a big country that lacks water resources. More and more water resources are polluted. The conservation and protection of water resources has always been the theme advocated by the country. In my country's subtropical regions, especially in the southeast region, the annual precipitation is abundant. In addition, the Jiangnan region, the middle and lower reaches of the Yangtze River, and coastal cities receive a lot of rain every year. However, these water resources cannot be used rationally and can only be lost in vain.

Images