Due to the high temperature in summer, the vacuum tube solar collector absorbs too much sunlight, making the water temperature too high, which can reach boiling. At this time, you should not add water or replenish water to the solar system. water heater. If you fill the water at this time, it will easily damage the solar machines and water pipes.
During use, the water temperature is too high in summer. Be sure not to let children use the water from the solar water heater alone, because without staff supervision, the water temperature is too high and the user can easily be burned. Even adults should pay attention to this.
Actually, it is normal for home solar water heaters to reach 99 degrees in summer, because the sun's ultraviolet rays are strongest in summer, the light energy absorbed by solar collectors is the highest valueve of the year, and the high temperature resistance of the vacuum tubes can reach If the temperature is about 250 degrees or more, as long as the water is not replenished here, it will have no impact on the heater solar water, so don't worry. Just use it normally.
Can solar water heaters be damaged if there is no water in summer?
How to properly use and maintain solar water heaters in summer :
1. Scientifically choose the water filling time
Solar water heaters should be filled with water regularly. However, it is strictly prohibited to fill the water when the weather is particularly hot and the water temperature is particularly high. It is strictly prohibited to add water immediately after the water is used up. Due to the strong sunlight in summer, the temperature of solar vacuum tubes in the air reaches 270 degrees Celsius at 400 ddegrees Celsius. At this time, it is easy to burst the vacuum tube. in the morning before sunrise or two hours after sunset in the evening. Water, it can guarantee the life of the solar vacuum tube.
2. Correctly adjust the hot and cold water valve
The steps of adjusting the water temperature of the solar water heater: first open the cold water valve, adjust the water flow cold water appropriately, then open the hot water valve and adjust until the required bath temperature is obtained.
Due to the prolonged duration of sunshine in summer, the temperature is higher and household hot water consumption is lower. Therefore, hot water from solar water heaters often has a higher temperature, usually reaching over 60 degrees Celsius. For ordinary households, the distance between the water storage point and the solar water heater water point is often long, the water temperature in water pipes can reach around 35 degrees Celsius due to the high temperature in summer. Therefore, when we turn on the water heater, the normal temperature hot water in the water pipe will be discharged first, and after a minute or two, the high temperature hot water will be discharged. If you are not careful, you may burn yourself. your skin. Therefore, when using a water heater in summer, you should pay attention to the hot water temperature.
3. Intelligent use of tail hot water
Intelligent use of tail hot water can better save resources. When you take a shower, if the water in the solar water heater is used up and the person has not rinsed it, you can pour cold water for a few minutes and use the principle of flowing cold water and hot water floating to get out. hot water in the tube,and you can continue to take a shower; If there is still some hot water left in the solar water heater after showering, add cold water for a few minutes, and the resulting hot water can wash one more. person; in addition, pay attention to the fact that when adjusting the water temperature in the shower, the nozzle should not face the human body to avoid burns.
4. Appropriately determine the amount of water to be supplied
Determine the amount of water to be supplied based on weather conditions to achieve a more satisfactory water temperature. If the weather is good the next day, l water can be filled. ; if it is cloudy or cloudy, fill the tank with half a tank of water; it rained all day, so the original water was retained and no cold water was provided.
5. Check and maintain the pipes regularly.
Check the exhaust holes regularly for asensure smooth flow to prevent inflation or deflation of the water tank; For solar water heaters equipped with auxiliary electric heating devices, pay special attention to the water supply to avoid drying out. burning without water. At the same time, check whether the solar water pipe insulation layer and UV-resistant tape are aging and cracking. If the water supply pipe is exposed, it will easily become hard, brittle, crack and leak under exposure to sunlight. Users are advised to install layers of insulation and UV tape beforehand to completely protect the water pipes.
6. Prevent accidents during thunderstorms and wind.
Due to their working principle, solar water heaters should be installed on the upper balcony. Solar water heaters are generally larger due to their water collection requirements.e heat. Therefore, users should pay attention to reinforcing the supports of solar water heaters in windy weather to avoid accidents. Be sure to fill the water heater with water on windy days to increase stability.
7. Protective measures should be taken when the solar water heater is not used for a long time in summer.
Currently, most domestic solar water heaters use vacuum collector tubes. This type of vacuum collector tube has high absorption efficiency. When the outdoor temperature is high in summer, during seasons with long sunshine and strong radiation, it does not take 48 hours to reach the boiling point. If the water heater is not used for a long time, the water in the water tank will be retained for a long time. When the water tank is exposed to high temperatures for a long time, the rate ofaging of the polyurethane insulating layer will increase. Tartar will form easily. Excessive pressure will also cause the water tank to deteriorate, causing damage to the water tank.
Therefore, if you do not use the solar water heater for a long time, you should cover the vacuum collector tube and remove it when using it again. You can also remove the vacuum collector tube first, but this method cannot be done by yourself and requires professional assistance.
It will have an impact~ It is not good to dry solar vacuum tubes in the air, because the temperature of the inner wall of the vacuum tube can reach 400 degrees. This way the vacuum tubes will be of poor quality. explode directly in the sun. Good vacuum tubes, like Linuo, will shorten the lifespan, for example, they can be used for twenty years, but the collection effectheat and molecular structure change of film layer will be caused by air drying. , which will reduce the service life.
If you do not use it at the moment, it is recommended to cover the vacuum tube with felt, carpet or quilt to avoid sunlight, so that it does not there is no problem.
Air drying the other parts will not pose a problem.
Evacuated tube solar water heaters are very efficient on sunny summer days, the water temperature can reach boiling point in less than two days if the water does not is not used for a long period of time, for example when traveling. or when traveling, the water tank will be exposed to high temperatures and pressures for a long time. In this state, it will promote the aging of the seal ring, accelerate the aging and shrinkage of polyurethane, and sometimes the exhaust is not smooth. . A pressure tToo high will cause the water tank to swell and scale, thus shortening its lifespan. Therefore, if you are away from home for a long time, you should ask someone to put hot and cold water in it frequently, or put a cover on the vacuum tube collector to block the sun, then remove it after you get home. If it is not used for a long time in winter, you should cancel the electric heating setting to avoid wasting electricity.