What are the air intake methods of gas stoves?
May 13, 2022
Bottom air inlet type: This type of cooker is copied from imported cooktops, and the heat load and burner are increased in order to meet the cooking habits of the Chinese people. This kind of product in foreign countries requires openings in the cabinets, or relying on larger cabinets. The gap is used to supplement the secondary air required for combustion, and at the same time, it is used for the inevitable discharge of leakage gas during ignition, and is designed with a small heat load. However, domestic users rarely know how to open the cabinets, resulting in insufficient combustion, high concentrations of yellow flame and carbon monoxide, and once the gas leakage is large, it may cause ignition and deflagration, causing the glass panel to burst.
Upward air intake type: This cooker improves the shortcomings of the first cooker, raising the burner head above the countertop, hoping to enter the air from the gap between the burner head and the liquid-receiving pan. However, a high temperature zone has been formed in this part during combustion, and the cold air expands and rises due to heat, so it cannot enter the burner head, so the secondary air still cannot be effectively supplemented, and the problem of high yellow flame and carbon monoxide concentration cannot be solved fundamentally. With this structural design, the heat load should not be designed too large. If it is greater than 3.06 kWh, the yellow flame is very powerful, and the thermal efficiency is low. It does not meet the needs of the Chinese people for fierce fire. But it can reduce the burst rate of the glass panel.
Side air intake type: This type of cooker is equipped with an air intake device in the relatively low temperature area of the panel. When the combustion reduces the air in the shell to form a negative pressure, the cold air will be sucked into the shell along the inlet of the air intake device, which not only provides Sufficient primary air and secondary air required for combustion are solved, the problem of yellow flame is solved, the concentration of carbon monoxide is also greatly reduced, and the leaked gas can also be discharged from this air inlet, even if the gas leaks ignite and deflagrate, the airflow It can also be discharged from the air inlet as soon as possible, which can quickly reduce the internal pressure and prevent the glass panel from bursting. At the same time, the cold air enters the furnace body through the air inlet, which also greatly reduces the temperature of the countertop glass. The heat load of the cooker can reach 3.8 kilowatts.
Full air inlet type: This cooker not only has an air inlet on the chassis, but also has an air inlet between the burner head and the liquid-receiving pan, which not only provides sufficient primary air and secondary air required for combustion , solves the problem of yellow flame, greatly reduces the carbon monoxide content, and avoids the tempering caused by opening and closing the cabinet door at once, thus reducing the probability of the glass panel bursting. Since this type of cooker adopts the characteristics of top-inlet type and bottom-inlet type cooker, it not only maintains the advantages of high heat load and large flame adjustment range, which conform to the cooking habits of Chinese people, but also greatly reduces the internal and glass panels of the stove. The temperature can effectively avoid the occurrence of glass panel bursting.
Most of the built-in glass panel cooktops on the market are the first three types. If the product quality is not up to standard or the installation is improper, it is more likely to cause insufficient combustion, excessive carbon monoxide, yellow flame, low firepower, high panel temperature, and even glass explosion. . Therefore, consumers must buy brand-name products in reputable shopping malls or building materials cities, and remember to punch holes in the cabinets during installation to ensure smooth airflow.
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