Solar energy has many uses in meeting people's living needs, such as power generation, heating, heating water and so on. Solar water heater is the most mature technology, the highest thermal efficiency and the most popular product in the market among many solar energy heat utilization equipment. However, the market share of solar water heaters in China is not very high compared with electric and gas water heaters. The main reason is that there are some problems in the product itself and its popularization and application. If the problem of pipeline emptying is not solved properly, it will directly affect the use of low-level households. Therefore, the application of residential solar water heater in residential areas will directly affect the development prospects of solar water heaters and the development and utilization of renewable resources. Therefore, it is of great practical significance to solve the technical problems of residential solar water heater application in residential a
2019-11-14