Antifreeze techniques for the upper and lower water lines of solar water heaters include dripping antifreeze, draining antifreeze, and heat tape antifreeze.
1. When you enter winter, you should first check the condition of the solar water heater pipes. Pay attention to whether the screws at the pipe connections are loose and whether the pipes are cracked or disconnected. , or leak, if there is any, repair it as soon as possible.
2. For solar pipes, it is better to wrap them with foam, cotton and linen fabric, plastic, etc., which can play a role of thermal insulation.
3. Solar water heaters have electric heating ribbons. When the temperature is below zero, remember to turn on the electric heating tapes, which can protect the solar water heater from freezing.
4. When the temperature is extremely low or when the enSolar power is not used for a long time, the original water from the solar water heater should be collected in a bucket and drained. This way there is no water in the water pipe and it will naturally not freeze.
Detailed information:
1. Determine the amount of water supplied according to weather conditions
In winter, the sunlight is not strong and the lighting duration is In short, the solar radiation that the vacuum tube can absorb . The amount of lighting is significantly reduced. In order to achieve a relatively satisfactory water temperature and maximize the benefits of solar energy, the amount of water supplied can be determined based on the weather forecast. After running out of water at night, if there is still half of the hot water left in the tankof water, to prevent the heat from dissipating too quickly, if it is sunny the next day, fill it with water if it rains; or snowy the next day, fill it with only 1/3 of the water.
2. Use water heater water wisely
On sunny days in winter, you can use the solar water heater normally. When the temperature is below -5℃, use it. the water heater a small amount and several times a day.
There are two ways to avoid freezing. One is to insulate the exposed pipes and wrap the outer pipes with cotton, plastic foam and other insulation materials; the other is to turn on the hot water tap; of the solar water heater. Let it drain slowly so that the water flow from the solar water heater is always smooth. A basin of water per night can effectively prevent pipes from freezing.
If the water line has been frozen, you can use a dryere-hair to blow it out, or wrap a towel around the water line, then slowly pour warm water over it. Don't cook it over a fire. hit the pipe or use boiling water quickly. If it's hot, it will burst the pipe.
In addition, many people have a misunderstanding when using solar water heaters. After using the hot water at night, they immediately fill the water heater to prepare for use the next day. The temperature is low at night in winter. If the water is filled, the water heater pipe will crack easily once it freezes. Therefore, when using it, the timing and amount of water added should be determined based on the degree of cold. If the outside temperature is above 0℃, you can consider adding water that night; if the outdoor temperature is below 0℃, it is better to add water the next morning to avoid theLeaks at the water outlet. Frozen everywhere. In case of rain or snow, the amount of water in the solar water heater should be reduced accordingly.