The selection of insulation materials for solar water heaters (b) is better. A. Wood products B. Slow heat transfer foam C. Fast heat transfer metal The following table is a list of design elements to improve the heat absorption capacity of solar water heaters. Please express best practices in brief terms. Best practices for design projects include sunlight intensity (strong), color depth (depth), surface smoothness (smooth), placement angle (tilt should be consistent with local latitude; if the system is focused on for use in summer, the tilt should be local latitude minus 10°; if the system is used primarily in winter, its tilt angle should be 10° to; local latitude) Other measures (pipes must be arranged at the shortest distance and well insulated)
1. Useinsulation materials for pipes
For solar pipes, it is better to wrap them with foam, cotton and linen fabric, plastic, etc., which can play a role in thermal insulation.
2. Turn on the electric heating tape
General solar water heaters have electric heating tapes. When the temperature is below zero, remember to turn on the electric heating tape, which can be. Alright. Protect solar water heaters from freezing.
3. Antifreeze by water drops
As long as the water continues to flow, the possibility of freezing is very low. Before going to bed at night, you can turn on the hot water tap slightly and let the water drip to ensure that water flows through the water pipes. Remember to put a bucket to collect the water so you can use it the next day. Don't waste water.
Detailed information:
Daily maintenance of solar water heaters:
1. 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 cold water first, then hot water to avoid burns.
2. There is usually a filter device at the outlet of the faucet. Scale and debris in the water line accumulate on this screen. It should be removed and cleaned regularly to increase the amount of water and smooth. exit.
3. In winter, it is very common for pipes to freeze. If it turns out that the pipe has frozen but is not yet cracked, it can usually be cleaned automatically after the temperature rises. You can also use a hair dryer to blow on the water pipe, or wrap a towel around the water pipe and then slowly pour it with water tied. Do not cook it on fire, hit the water pipe, or scald it with boiling water, because. this will cause the pipe to burst. Multiple freeze blockages can easily cause pipes to freeze and crack. Pipe insulation measures must therefore be reinforced.
4. Solar water heaters should be cleaned, inspected and disinfected on average every two to three years. Users can also do some disinfection work themselves, such as purchasing chlorine-containing disinfectants and adding them. At the water. Pour it into your mouth, soak it for a while, and then release it, which can achieve a certain disinfectant effect.
5. Solar water heaters need to be cleaned inside the vacuum tube every two to three years on average to prevent scale from forming inside the vacuum tube and affecting the heat absorption effect.
6. If the solar water heater is equipped with special instruments, attention should be paid to lightning protection and electricity. Do not take a shower and unplug the electric heater.
Baidu Encyclopedia-Solar Water Heater