Yes, if there is water in the solar water heater in winter, the water pipes will freeze and crack easily. After water crystallizes, the volume increases, causing plastic and steel water pipes to shrink, become brittle at low temperatures, and their pressure resistance decreases and may burst.
Precautions for solar energy in winter:
1. Put insulation tubes for solar energy
Due to low temperatures and short sunshine in winter, when using or installing solar water heaters, because the exterior pipes and Exhaust overflow pipes are first covered with rubber-plastic insulation pipes, and then insulated with thicker polystyrene materials to prevent the water from freezing due to cold weather, which will cause overflow hot and cold water. to flow up and down smoothly, causing users inconveniences and damage to the solar water heater tank.
2. Pay attention to antifreeze during daily use
On sunny days in winter, solar water heaters can be used normally, but when the weather is below 0°C, you need Beware of blocking solar energy. When the temperature is below 0°C, users need to add water to the water heater several times a day. The amount of water added should not be too large. You can use more water in the water heater before going to bed and after getting up. to keep the water inside the pipes.
Detailed information:
1. The surface of the solar water heater should be wiped regularly depending on the amount of dust in the area. It can be cleaned when it rains. the clean water heatercan achieve higher thermal collection efficiency.
2. The water stored in the solar water heater should be discharged regularly depending on local water quality conditions. Drain time can be selected in the morning when the sensor temperature is lower.
3. When hot water is not used for several consecutive sunny days, the hot water temperature will be very high. When using the solar water heater, please turn on the cold water first, then turn on the cold water. hot water to avoid burns.
References:
Yes, when the solar water heater is not used in winter, the water in the water tank should be drained. The water remaining in the water tank will be very cold in winter when the temperature is very low. . Once there is water in the water tank, if iceshape, the water tank will freeze and crack easily. Therefore, the solar water heater tank must be drained in winter.
If you find that the solar water pipe is frozen, don't worry yet. Under normal circumstances, solar pipes may be automatically frozen when the weather gets warmer. You can also wrap the pipes with a towel and slowly douse them with warm water, or blow them with hot air to speed up defrosting.
Detailed information
Before the arrival of winter, preventive measures should be taken for solar water heaters. The first is to perform a complete inspection of the solar system. water heater. The most important thing is to check whether the screws at the pipe interface are loose, whether the pipes are disconnected or leaking. Check the packaging and cracks, if any, repair them in time.
LoWhen using solar water heaters in winter, the timing of adding water should be determined based on weather conditions. If the temperature outside is above freezing, you may consider adding water that night. below zero, it is best to add water the next morning to prevent the water outlet from freezing.