The inner tank is a very important part which determines the lifespan of the solar water heater. There are three types of solar water heater coatings: stainless steel coating, enamel coating is best, and crystal coating is best. Crystal coating has the best thermal insulation effect, but it is the most expensive. The enamel coating has good thermal insulation effect, but it is easily broken and difficult to move. Stainless steel is the cheapest and least efficient. But economical and practical. When purchasing, consumers should understand that the water tank liner material should be non-toxic, odorless, and can ensure clean water quality. The thickness of non-pressure water tanks should reach 0.5mm, and the thickness of pressurized water tanks should be greater than 1.0mm. Lower quality products use stainless steel plates of athickness from 0.3 to 0.4 mm, which greatly reduces the cost.
Can dirt and foreign objects enter the inner tank of the solar water heater?
The following water heater coating is better:
1. Oxygen-free copper coating
Advantages: fast heat conduction, pressure and corrosion resistance, good ductility. , and antibacterial Antibacterial and high thermal efficiency.
Application: Electric water heater with oxygen-free copper coating is recognized in the industry as the most mature and stable heating element, conforming to the trend of water protection environment and health. But it is mainly suitable for electric thermal water heaters, which are more common in developed regions of Europe and the United States.
2. Stainless steel liner
Advantages: pressure resistant, not easy to rust
Usage: Although the linere stainless steel has its own advantages, but during use will be corroded by chloride ions, causing water leakage at the solder joint.
3. Enamel lining
Advantages: non-metallic material, not easy to rust, strong pressure resistance, better thermal insulation performance, long service life
Application: Enamel lining Enamel is the most widely used electric water heater coating today. Most manufacturers promise to guarantee replacement for more than five years, so it is relatively convenient.
Since the water of the solar water tank is generally supplied by the tap water pipe, the water quality of the water tank is generally good, but as the water temperature increases, scale will form and the same goes for the vacuum tube. Requires regular cleaning. The choice of water tank material is also veryimportant. I heard that the water tanks of Huangming products are made of stainless steel and nano PP polymer composite coating. Nano PP polymer composite coating is designed for areas with poor water quality. corrode. There is no scale on the inside wall of the water tank! I hope my answer can help you. If you think my answer is good, don't hesitate to like! hehe. . .