The inner container is the core component of the water heater, which directly affects the safety performance, service performance and working life of the water heater. When choosing a water heater, users should pay attention to whether the steel plate of the water heater liner is made of titanium alloy, whether the thickness is thick enough, whether the welding process is advanced and reliable, whether the quality of enamel glaze is guaranteed, and whether the coating and sintering process is advanced.
Jingui special care system is super antifouling and has long service life. A.O. Smith innovated and developed Jingui special care heating rod, which made a breakthrough in anti-corrosion and anti-pollution ability. Jingui special protection system, which consists of Jingui inner container and American strong anode rod, improves the overall quality of water heater to a better level and ensures long-term and efficient operation! Professional welding technology and excellent surface coating materials. Adopt high-speed welding equipment assembly line and professional welding technology imported from the United States. PLC automatic gas shielded welding ensures the first pass rate, strictly eliminates false welding, and the weld performance is 100% sealed, which is well combined with coating penetration. It is made by adding special materials into special glaze with special formula, which has much better water resistance than ordinary enamel materials, and has obvious rust-proof, corrosion-proof and scale-proof effects. Leading coating process
The coating is sprayed evenly, and after baking at 870 degrees Celsius, it is closely attached, with higher fastness, effective rust prevention and corrosion prevention. Pressure-bearing performance of super-strong inner container of Jingui special care heating rod. It is not easy to absorb impurities, which ensures that the heating rod is effectively anti-corrosive and anti-fouling, and maintains long-term efficient heating operation.
Effectively prevent the consumption of anode rods, thus protecting the lining for a longer time and prolonging the service life of the lining. American anti-dry burning design, even if the water is cut off, the heating rod will not burn out, and the service life is longer. American super-long design, larger heating area and high heating efficiency. American internal thread installation, small contact surface with the liner, excellent sealing performance, ensuring the overall bearing capacity of the liner. American structure and unique low-position submerged installation make the cold water at the bottom of the water tank heat up rapidly, which greatly improves the recovery rate of hot water during use. According to the American pressure-bearing standard of 2MPa, it is about 67% higher than the pressure-bearing design standard of water heaters in China and Europe. Under the strict "UL" standard in the United States, it has passed 65438+ ten thousand life tests. Each batch of liners has passed the pressure test of 2 1 kg/cm2, which can ensure the safety even if the temperature changes.
2) electric heating tube
The quality of electric heating tube is directly related to the safety of water heater. Therefore, when buying a water heater, we should not only care about the power of the electric heating tube, but also care about the electrical performance of the electric heating tube.
3) Magnesium anode rod (magnesium rod)
Magnesium is the metal with the lowest potential in electrochemical sequence, and it is physiologically nontoxic. Therefore, it is very ideal to make magnesium rod protective lining. The size of magnesium rod is directly related to the length of time to protect the inner container and the size of the protection effect. The bigger the magnesium rod, the better the protection effect and the longer the protection time.
4) Selection of insulation layer
The insulation layer of water heater directly affects the insulation performance of water heater. The main factor that determines the thermal insulation performance is the thermal insulation material.
And that thickness of the insulate layer. At present, commonly used thermal insulation materials include asbestos, sponge, foamed plastics and polyurethane foam. Among these thermal insulation materials, polyurethane foam has the best thermal insulation performance, followed by foamed plastics. Asbestos and sponges are generally only used as auxiliary insulation materials for water heaters, because they are difficult to fit closely with water heaters. 5) Selection of backflow prevention technology
In order to prevent electric water heaters from dry burning due to external water cut-off, all electric water heaters adopt backflow prevention technology. At present, the backflow prevention technology adopted by most manufacturers is realized by using safety valves with check function (commonly known as spool safety valves). However, there are some problems in this technology: when the water heater works, some water will leak into the pipeline through the internal leakage function of the valve core, which is easy to make the pipeline of the water heater vibrate locally and make abnormal noise; At the same time, there is a potential safety hazard, that is, the internal leakage function of the safety valve often fails due to scale blockage, thus increasing the working pressure of the inner container and reducing the service life of the water heater.
6) Anti-electricity wall
The important function of the electricity-proof wall is to isolate the charged current in the water caused by the leakage of the heating tube in the heating liner, and to isolate the harm of the charged ground wire or water pipe to the shower.
Anti-electric wall technology is a patented technology of water heater safety, which is based on the comprehensive application of pipeline design technology, raw material technology and electric resistance technology. It mainly includes the following aspects: the internal anti-electricity design, the selection and installation of heating pipes, magnesium rods, temperature controllers and other components in the water heater adopt special insulation treatment to ensure that the electricity in the water will not leak; External anti-electricity design The shell, mixing valve, nozzle and hose of the water heater have undergone special anti-electricity treatment to ensure the insulation of the contact part with the human body. Anti-electricity design of pipeline The pipeline of water heater adopts raw materials with special formula, and damping technology is applied in the structural design of pipeline, even if the water in the water heater is charged; It can also ensure the safety of people taking a bath. At present, only Haier, Ding Xin and Shuaikang in China have their own patented anti-electricity wall technology.