Why should the heating tubes of electric commercial kitchen equipment be replaced regularly?

I believe that many friends usually tell users that they need to replace the heating tube regularly when purchasing electric commercial kitchen equipment. Why is this? Will the manufacturer earn various accessories or maintenance fees from it? Today, let SHINELONG editor do a simple popular science and tell you why the heating tube needs to be replaced regularly. Factors affecting the service life of the heating tube Material factors Heating wire material: The core of the heating tube is the heating wire, which is usually made of metal materials with high resistivity, oxidation resistance and high temperature strength. This material has a service life of generally 3000-8000 hours. Shell material: The shell of the heating tube mainly plays a protective and insulating role. Stainless steel is usually used in commercial kitchens, and relatively well-known brands will use higher-quality 316 food-grade stainless steel as the shell material. This material has better sealing and can greatly extend the service life of the heating tube. Use environment factors Temperature: When the heating tube works within the rated temperature range, its service life can be guaranteed. The working temperature of the heating tube in the commercial kitchen is generally between 80-400 degrees. Compared with other commercial scenes that require high temperature work, the working temperature of the heating tube of the commercial kitchen equipment is not harsh, but the oxidation rate of the heating wire will still accelerate after long-term use, and metal evaporation will cause the heating wire to become thinner, the resistance will increase, the heating power will decrease, and the service life will be shortened. Humidity: In a high humidity environment, the heating tube is prone to leakage, short circuit and other problems. If the insulation performance of the heating tube is not good enough, the moisture in the air will make the insulation layer damp and reduce its insulation resistance. In commercial kitchens, the heating tube is usually in contact with water. Generally, the heating tube of a large brand will be wrapped in a stainless steel shell with excellent sealing, which can effectively eliminate the sealing problem, but a large amount of scale will be formed under long-term use, and the poor thermal conductivity of the scale will cause the heating tube to dry burn under a large amount of attachment. Corrosive ingredients: The dishes cooked in different catering industries are different. Some dishes are corrosive. Corrosion may occur under long-term contact with the heating tube, resulting in a decrease in the service life of the heating tube. Working mode factors Continuous working time: The life of the heating tube that works continuously for a long time is shorter than that of the heating tube that works intermittently. Especially in the commercial kitchen industry, it is necessary to work continuously almost every day. Take the heating tube used in the oven as an example. If the oven continues to bake food at high temperature for a long time, the heating tube is always in working state, and the aging speed of the heating wire will accelerate. Power load: The heating tube generally has a higher working power, and long-term high-power work will cause the heating wire to gradually age, evaporate, and oxidize, which will cause the working resistance of the heating tube to be really large, the heating power to decrease, and finally reduce the service life. Performance degradation aspect Heating efficiency decreases As the use time increases, the heating wire inside the heating tube will gradually age, resulting in a decrease in heating efficiency. Because the heating wire gradually becomes thinner due to long-term use, but it has to achieve the corresponding heat output, it will gradually increase the power of the heating tube under long-term use, and the resistance will gradually increase, and finally reach the service life. Inaccurate temperature control The aging of the heating tube will also affect its temperature control accuracy. The new heating tube can work more accurately within the set temperature range because its heating performance is stable. However, as the heating tube wears out, it may not be able to accurately maintain the set temperature. Safety hazards Increased risk of leakage Heating tubes usually have strict anti-leakage design. For example, the outer shell of SHINELONG's heating tube is made of 316 food-grade stainless steel, and the interior is insulated to ensure that there will be no leakage. However, long-term use may gradually destroy the original insulation effect due to the customer's kitchen environment and usage habits, thereby triggering leakage protection and forced power off. Risk of rupture or explosion Heating tubes work at high temperatures for a long time, and fatigue may occur in the pipes, especially when they reach the service life or due to the harsh kitchen environment, which is also an important factor causing the rupture of the heating tubes. Methods to extend the service life of heating tubes Correct installation: The installation of heating tubes needs to follow certain specifications and requirements. During the installation process, the established requirements of the commercial kitchen equipment manufacturer must be strictly followed. Of course, a better choice is to arrange for the manufacturer to appoint after-sales service personnel to install on-site. Choose the right model: There are many models and types of heating tubes, which are suitable for different scenarios. In commercial kitchens, it is recommended to choose high-sealing and corrosion-resistant heating tubes. When choosing, you need to pay attention to choosing heating tubes that have been working at the same power as the original machine to ensure that the heat output can reach the power of the original machine. Of course, the editor recommends that you choose the original heating tube first. For example, in the case of SHINELONG, SHINELONG after-sales service will be equipped with various kitchen equipment corresponding heating tubes, which can provide various types of heating and fast door-to-door services in a timely and appropriate manner, and minimize the impact of equipment damage on store operations. Optimize the use environment: Try to keep the working environment of the heating tube under the manufacturer's requirements. Regular maintenance and cleaning can effectively remove the residual stains in the equipment to avoid scale. Reasonable control of working methods: Strictly follow the manufacturer's established working power, avoid unauthorized modification, especially unauthorized increase of equipment power, and remember to turn off the equipment during daily rest to avoid any dry burning. Summary: Due to the working principle and materials, the heating tube has a service life. In the catering industry, if it is a SHINELONG electric heating equipment heating tube, the service life is generally 3-5 years. Therefore, it is generally recommended to replace it regularly to ensure the heating performance and safety of the equipment. Well, today's commercial kitchen sharing ends here. I hope it will be helpful to everyone. 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