Commercial induction cooker technology status

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I. The market overview of commercial induction cooker

Induction cooker (Induetion Cooker), also known as induction cooker, which is based on the principle of electromagnetic induction, the use of alternating current through the coil to produce alternating magnetic field, alternating magnetic field in the ferromagnetic material at the bottom of the pot to produce induced current (also known as eddy current), eddy current so that the pot of high-speed heating, used to heat and cook food. China since the 1950s industry began to use induction heating technology, the end of the 20th century to the beginning of the 21st century, because based on induction heating technology in the safety, efficiency and a series of superior performance and characteristics of induction heating theory and induction heating devices have been developed very quickly, 2kW-3kW low-frequency low-power 220V induction cooker in the home application is becoming more and more widespread, according to the analysts of the SMR Observations on the induction cooktop industry show that although the current penetration rate of induction cooktops in China only accounts for 2% of the entire cooktop market, compared with the 0.07% penetration rate at the beginning of the development, the penetration rate of household induction cooktops in the market in 2015 has increased by 30 times. The main market of commercial induction cooker in the catering kitchen industry, enterprises and institutions, education and other fields, there will be 60 billion market space in the next 5 years.

II. The characteristics of commercial induction cooker

Compared with the traditional heating method, induction cooker has a number of obvious advantages:

(1) Higher security

Induction cooker non-contact heating of food, circuit and cookware without electrical contact, from the principle of solving the leakage protection problem; induction cooker in the use of non-hazardous gas release, no open flames, induction cooker itself is very small heat radiation, is conducive to the use of the environment of the fire prevention and explosion-proof; through the power supply circuit can be realized by automatic control of the protection of the no-pot protection, over-temperature protection protection and other protective functions, to ensure that the use of induction cooker safety.

(2) Cleaner and more efficient

Induction cooker with alternating current as energy, as long as it is incorporated into the power grid can be used, without the need to additionally lay complex pipeline; high thermal efficiency, according to relevant information, the thermal efficiency of coal is about 12%-20%, the thermal efficiency of liquid fuels is about 20%-40%, the thermal efficiency of gas fuels is about 50%-60%, while the induction cooker utilizes the principle of electromagnetic induction heating, the thermal effect of the heat effect directly on the bottom of the pot heat, the thermal efficiency is as high as 80%-90%, while the induction cooker utilizes the principle of electromagnetic induction heating, heat effect directly on the bottom of the pot, its thermal efficiency is as high as 80%-90%. Thermal efficiency of up to 80% -90%, can effectively save energy; induction cooker power supply system and the kitchen surface is relatively independent, and induction cooker surface is generally more neat and clean, easy to clean, no gas, smoke and dust release, easy to keep the environment clean.

In addition to the above 1, 2 advantages with the traditional electric stove, gas stove and other traditional heating stove compared to the induction cooker has a fast heating speed, heating uniformity and other characteristics, more importantly, the induction cooker is also through the intelligent control means, you can accurately control the induction cooker heating time and heating temperature, and can even be achieved under certain conditions of automatic cooking.

III. Commercial induction cooker technology status quo

Although the popularity of household induction cooker is growing rapidly, but in comparison, commercial induction cooker in practice is still relatively small. The reason for this is mainly due to the immature market brought about by disorderly competition, domestic induction cooker technology gradually into the appearance of the blossoms, technical stagnation of the strange circle, the research direction is also mainly focused on the 2kW-3kW low-frequency household low-power induction cooker, and the high-frequency 380V high-power induction heating technology research due to the lack of attention by the market and the level of the development of domestic power electronics, etc. Conditions of the constraints, is still in the initial stage, and the advanced level there is a big gap, there are many problems in technology: such as electromagnetic induction heating system constant power control is not perfect, power by the load and the grid voltage has a greater impact; the system protection function is not perfect, the lack of safety detection and protection of loads, prone to danger; the system electromagnetic compatibility is not good, on the grid and the surrounding electrical appliances will produce interference; system reliability Low, failure rate and so on. With the development of power electronics and semiconductor devices as well as medium and high power induction heating in industry, troops and other fields of wider application, induction heating technology represented by induction cooker will be higher frequency induction coil, stand-alone power, operation is simpler, higher degree of intelligence, power factor is more ideal, smaller volume to power ratio and so on.

IV. Commercial induction cooker future technology outlook

Of course, the domestic commercial induction cooker due to the application of channel characteristics, industry non-standard customization degree is high, the basic technical research is also stagnant in the development and application of a single furnace on this low level, the entire industrial supply chain in the technical research has not been formed specialization and centralization, and foreign advanced technology in the transformation, but also faced with the high cost of the process of transformation of the technology is slow, so the market is still in cultivation. Period. But I believe that, with the rapid development of electromagnetic heating technology and continue to be widely used in the commercial field, the promotion of low-carbon environmental protection policy and the popularization of the concept of cooking without fire, will emerge more practitioners in the field of commercial induction cooker to carry out more research and development of innovation and more reasonable upgrading of the design of induction cooker is also bound to play a more important role in the overall protection of commercial kitchens.