It is recommended to replace solar antifreeze every two years. The scientific basis is that antifreeze will essentially lose its effectiveness after two years.
Antifreeze is a substance with a lower freezing point added to water to lower the freezing point of the cooling water and prevent the cooling system from freezing. The following issues should be considered during use:
1. During use, if the fluid level drops due to a leak in the cooling system, the same type of antifreeze should be added if this is due to; evaporation, then distilled water or fresh water should be added to the cooling system; When it is found that there is suspended solids, sediment or deterioration and odor in the cooling water, everything must be replaced and the cooling system must be cleaned.
2. Ethanol antifreeze volatilizes easily,so pay attention to fire prevention during its use. When the engine water temperature is too high, do not open the water tank cover or let the engine stall immediately to avoid sudden antifreeze splashing due to rapid temperature rise, causing injury or fire when the liquid level drops due to ethanol volatilization. 80% ethanol can be used to add an added note.
3. Ethylene glycol is an organic solvent when using it, be careful not to spill it on the surface of rubber products or paints, and be careful not to contact your skin. In case of accidental spillage, rinse immediately with clean water to avoid corrosion of parts or skin damage.
4. Different types of antifreeze cannot be mixed to avoid causing chemical reactions, generating precipitations or bubbles and reduce the use effect; When replacing antifreeze, the cooling system should first be flushed with clean water, and then add new antifreeze and water. Leftover antifreeze should be labeled with the name on the container to avoid confusion.
5. Due to different proportions and ingredients during preparation, different types of antifreeze have different freezing points. At this point, they should be selected based on local temperature conditions. Generally, the freezing point of antifreeze should be 10°C to 15°C lower than the local minimum temperature to prevent the antifreeze from failing.
When should antifreeze be added to solar water heaters?
Friendly response from Shanghai Simantai Chemical Technology Co., Ltd. :
Strictly speaking, they are different. Although the antifreeze base material used by many companies isit ethylene glycol.
But in terms of durability, solar antifreeze can withstand higher temperatures, usually reaching 150°C.
In terms of long-term effectiveness, solar antifreeze is an ultra long-lasting antifreeze; . Liquid, while automobile antifreeze is short-acting antifreeze, usually used for 2 years;
Simanti company is a professional manufacturer of solar antifreeze and can provide professional solar antifreeze.
How much antifreeze should be added to a 100 tube solar water heater
You can start adding it in the fall. \x0d\1. There are two round plastic covers inside the water tank. When you lower them, you will see two antifreeze inlets and outlets blocked by silk plugs. \x0d\2. Generally, the top one is added inward, and the bottom one is full if it overflows. However, refilling antifreeze is easy to cause blockage ofe the air. It is best to add it when the light is not strong or dim. the weather is cloudy and rainy. \x0d\The antifreeze should not be too thick. There is a nozzle under the water tank. Connect the hose to it, open the valve and pump it under pressure. \x0d\The hot water system is the fin inside the flat collectorConvert the absorbed solar radiation into thermal energy, causing the temperature of the working fluid in the heat exchange tube of the collector to continuously increase, taking advantage of the characteristics of low density of hot liquid and high density of cold liquid, through the circulation pipeline. , between the collector and the water tank A natural circulation of cold water from top to bottom and hot water from bottom to top is formed. Thanks to this cycle, the water in the water tank gradually heats up. Since the working fluid in the flat collector is a liquid resistant to low ttemperatures, it can be maintained at minus 40 degrees without freezing. So even in alpine and cold areas it can operate normally all year round.
Is the solar antifreeze replaced free of charge?
5 kg.
The amount of antifreeze is usually determined based on the capacity of the heat exchanger, collector and instantaneous heat circulation pipeline. A 100-tube solar water heater requires approximately 5 kilograms of antifreeze. In the future, you can avoid icing in cold climates.
When adding, you need to connect the filling funnel to the filling port of the hot water storage tank and pour it directly into the system circulation pipeline through the funnel filling.
Free. Antifreeze is an essential component of solar water heaters. Wall-mounted solar water heaters are not filled before being installed. Because they are not used pOver a long period of time, they evaporate in large quantities and damage the machine. normal and free installation service. If the other party asks for money, just negotiate with the developer.