Solution:
1. The method to clean scale from solar water heater is to empty the water from the water tank, hold the vacuum tube with both hands and rotate it backwards. to loosen it.
2. Then push the water tank so the bottom can come out of the base, then pull it down so you can remove the vacuum tube.
3. Pour the water into the vacuum tube, then rinse it several times with clean water. After cleaning all the vacuum tubes in turn, add tap water to the water tank to leave the scale in the water. The tank drains, then clean them one by one. Install the suction hose.
4. When installing, check whether the sealing ring at the water tank installation hole is intact. If there is damage, replace it with a new one.
Detailed information:
Solar water heater is a heating device that converts solar energy into thermal energy, heating water at low temperature. at high temperature to meet people's use of hot water in life and production. Solar water heaters are divided into vacuum tube solar water heaters and flat panel solar water heaters based on their structural shapes. Evacuated tube solar water heaters are mainly used, accounting for 95% of the domestic market share.
Daily maintenance of solar energy:
1. When installing a solar water heater, there may be a smell of dust or oil in the water pipe. When using it for the first time, you can do this. can open the faucet to remove the debris first.
2. The water stored in the solar water heater should be discharged regularly depending on the local quality conditions.ity of water. Drain time can be selected in the morning when the sensor temperature is lower.
3. 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. Keeping the water heater surface clean can get higher heat. collection efficiency.
4. 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.
5. There is usually a filter device at the outlet end of the faucet. Scale and debris in the water line accumulate on this screen. It should be removed and cleaned regularly to increase water flow. smooth exit.
6. In winter, it is very common for pipes to freeze. SIf 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 line, or wrap a towel around the water line and then slowly pour warm water over it. 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.
7. 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. with water, pour it into your mouth and let it soak for a whilefor a while.Time, then released, it can achieve a certain disinfection and sterilization effect.
8. 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.
9. If the solar water heater is equipped with a special instrument, please pay attention to lightning and electricity protection. Do not take a shower and unplug the electric heater during thunder.
Information link: Baidu Encyclopedia - Solar Water Heater ·
How to clean scale from solar water heater and how often it should be cleaned
h3>
Cleaning and descaling should be carried out regularly depending on local water quality conditions. Generally, cleaning every three to five years is sufficient.
The cleaning method is as follows : open the water inlet of the water heater, then pour in the descaling liquid. The amount of descaling liquid should be determined according to the capacity of solar energy. descaling liquid, we need to wait about 30 minutes to allow the water heater to circulate naturally, so that the descaling liquid comes into contact evenly with all parts of the water heater; then open the drain outlet of the water heater to discharge the descaling liquid, then add water. to the water tank, follow steps 1.2, then repeat. Drain the water, remove the vacuum tube from the solar water heater and clean it separately.
The solar water heater is a heating device that converts solar energy into thermal energy, heating water from low temperature to high temperature to meet the use of hot water by people in life and production.
Sunlight passes through the first glass layer of the absorbent tubent heat and shines on the black heat-absorbing layer of the second glass layer, absorbing the heat of solar energy from both glass layers. The glasses are vacuum insulated, the heat cannot be transferred to the outside, but can only be transferred to the water inside the glass tube, so that the water in the glass tube is heated. The heated water rises gently along the heating surface. from the glass tube and enter the insulated water storage bucket. The edge of the water at relatively low temperature in the bucket. The backlight surface of the glass tube enters the glass tube for replenishment, and the continuous circulation makes the water in the insulated water storage barrel heat up continuously. , thus achieving the purpose of hot water.
Advantages of solar water heaters
1. Energy saving
Part of household living expenses is water and electricity, but withthe use of solar water heaters, electricity and gas costs can be reduced by more than 90%, which is very economical from a social point of view, this reduces the development of other energy sources non-renewable and has a positive effect.
2. Environmental Protection
Each domestic solar water heater is calculated to reduce carbon dioxide, carbon monoxide, dust, sulfur dioxide, nitrogen and hydrogen compounds due to the combustion of coal during its basic 15 hours. years of use. The amount of emissions released into the atmosphere, of course, does not include a small number, but hundreds of tons of pollution sources, so environmental pollution can be alleviated to a certain extent.
3. Safety
When using solar energy, there is no hidden danger of poisoning or electric shock. If you are using a gas water heater or electric water heaterelectric. There may be a risk of poisoning or electric shock. As the number of users increases, so does the number of people injured or killed.
Disadvantages of solar water heaters
1. Wasting water resources
Since the solar power is installed on the roof of the building, the hot water pipe is more than ten meters long, which will waste more water every use than other equipment.
2. Long period
It takes a full day of sunlight to increase the water temperature. Even if the weather is good, it can only guarantee hot water at night, but this. It is difficult to guarantee it day and night.
3. Bad architectural aesthetics
Nowadays, everyone pays attention to the aesthetics of buildings. If such a water heater is installed on the roof of a high-end community or villa, it will be bulky and cumbersome,and it will also easily damage the waterproof layer of the roof.
4. Strong seasonality
Without good sunshine in winter, it is difficult for the water temperature to reach a certain temperature and cannot be used at night.
Detailed information
Water scale, commonly known as "rust, water alkali", refers to minerals contained in water hard that adhere to containers (such as the lumpy or powdery white substance gradually formed in pots, kettles, etc.), the main ingredients are calcium carbonate, magnesium carbonate, calcium sulfate, sodium sulfate, magnesium, calcium chloride, magnesium chloride, etc.
The thermal conductivity of scale is very poor. If the scale formed in the boiler is too thick, it will cause a reduction in the efficiency of the boiler, or even cause the boiler tube to explode.and will cause a boiler accident.
There are several main ways to remove tartar:
(1) Baking soda removes tartar. When boiling water in a scale-encrusted aluminum kettle, add 1 teaspoon of baking soda and boil for a few minutes to remove the scale.
(2) Lemon removes tartar. Put the lemon slices in the kettle (the thinner the better, the aim is to release as much of the citric acid as possible) and boil the water for about 5 minutes. After boiling, let the lemon soak in the water for 2 minutes then. remove it.
(3) Vinegar removes scale. If the kettle is limescale, you can put a few spoons of vinegar in the water and boil it for an hour or two, and the scale will be removed. If the main component of the tartar is calcium sulfate, you can pour asodium carbonate solution in a kettle and boil it to remove scale.
(4) Method of removing scale by ion exchange. A specific cation exchange resin is used to replace calcium and magnesium ions in water with sodium ions. The solubility of sodium salt being very high, it prevents the formation of scale when the temperature increases.
(5) Membrane separation to eliminate scale. Nanofiltration (NF) membrane and reverse osmosis (RO) membrane can intercept calcium and magnesium ions in water, thereby fundamentally reducing water hardness. The characteristics of the membrane separation scale removal method are that the effect is obvious and stable, and the treated water has a wide range of applications, however, it has high requirements for water pressure. water inlet, and the equipment investment and operating costs are high; .
(6) The tartar cleaner removes tartar.
The main ingredient of the anti-scalant cleaner is hydroxyglyceric acid, which is safe, non-toxic and environmentally friendly. This anti-scalant cleaner is easy to use and effective. It has the right dosage and relatively detailed instructions, making it very suitable for home users.
References:
How to remove scale from solar water heaters
< p>< p>Generally, solar water heaters should be cleaned after one year 'use. After that, they can be cleaned about every three monthsCleaning Steps:
1. First, drain the water from the water heater.
2. Remove all vacuum tubes, use a long wooden stick, and tie a ball of cotton fabric with cotton rope to one end. The size of the cotton ball should beslightly larger than the inside diameter. of the vacuum tube, but not too big, just feel a little resistance, slowly pass it through the vacuum tube, rotate it, then rotate it. The vacuum tube should be filled with water. Finally, simply rinse it with clean water. Note that if there is not much scale, it is not necessary to clean it frequently, because when disassembling the pipe, the sealing ring is easily damaged, so check it carefully before facility. If damaged, replace the sealing ring with a new one. one to make sure there is no water leak.
3. Open the water inlet of the solar water heater.
4. Add the solar water heater descaling agent to the water storage tank.
5. Automatic heating cycle for 20-30 minutes, so that the descaling agent solution comes into full contact with all parts.
6. Open the drain port and drainthe cleaning fluid.
7. Fill the water tank with water, then circulate it for two minutes.
8. Drain the circulating water, clean and descale.
Detailed information:
1. When installing a solar water heater, there may be a smell of dust or oil in the water pipe. When using it for the first time, you can first open the faucet to remove debris. .
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. 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. It is possible to keep the heating surfaceclean water.
3. p>
higher thermal collection efficiency.
4. 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.
5. There is usually a filter device at the outlet end of the faucet. Scale and debris in the water line accumulate on this screen. It should be removed and cleaned regularly to increase water flow. smooth exit.
6. 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 pour it slowlywith lukewarm water. 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.
7. Solar water heaters should be cleaned, inspected and disinfected on average every two to three years. Users can also carry out some disinfection work themselves. For example, they can buy disinfectant containing chlorine and pour it. Put it into the water inlet, soak it for a while and then release it, which can achieve a certain disinfection and sterilization effect.
8. Solar water heaters should be cleaned inside the vacuum tube every two to three years on average to prevent scale formation inside the vacuum tube and affect heat absorption effect.
9. If the solar water heater is equipped with a special instrument, please pay attention to lightning and electricity protection. Do not take a shower and unplug the electric heater during thunder.
References:
The way to clean the scale from the solar water heater is to drain the water from the water tank, hold the vacuum tube with the two hands and rotate it backwards. and back and forth to loosen it, then push it onto the water tank. Pop the bottom out of the base, then pull it down so you can remove the vacuum tube, pour the water into the vacuum tube, then rinse it repeatedly with clean water. After all vacuum tubes are cleaned, add tap water to the water tank, let the scale flow into thewater tank, then install the vacuum tubes one by one. During installation, check. whether the sealing ring at the water tank installation hole is intact. If damaged, replace the sealing ring with a new one.
In addition, during use, water should be added to the water tank as much as possible to lower the water temperature in the water tank. It is best not to exceed 75 degrees, which can reduce the generation of. ladder.