Flameout protective device for cookers

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In the smoke dense kitchen, each food born are carrying the temperature of life and expectations. However, the unexpected flameout of the gas cooker is like a hidden reef, which could set off a dangerous wave at any time and turn the cozy kitchen into a place of Sleeper Cell. Explosions and fires caused by gas leaks not only consume property, but also endanger lives. In the face of this Gattaca, flameout protectors have stepped forward like loyal guardians, using technology to create an impenetrable line of security.

(1)、Thermocouple

Among many types of flameout protection devices, thermocouples have become the first choice for many cookers because of their traditional and reliable characteristics.

1. principle

The working principle of the thermocouple flameout protection device is based on the thermoelectric effect, and the core component is a thermocouple probe composed of two different metals. When the flame burns normally, the high temperature will cause the temperature difference between the two ends of the thermocouple, and then form a weak potential difference. This potential difference acts as a stable signal source, maintaining the solenoid valve open to ensure a continuous and stable supply of gas. Once the flame extinguishes unexpectedly, the temperature drops rapidly, the electric potential difference vanishes, the electromagnetic valve can immediately close, cuts off the fuel gas supply.

2. characteristics

The advantages of this device stand out. Its structure is simple, less parts, which makes it extremely high reliability, low failure rate. Moreover, it does not need additional power support, relying on its own thermoelectric effect can work properly, both energy saving and environmental protection. However, it does have one small drawback, which is that the response time is relatively long, around 10-15 seconds. It may not be possible to turn off the gas instantaneously in some extremely responsive scenarios, but overall, it provides sufficient safety for most home kitchens for daily use.

(2)、Ion induction formula

Ion induction flameout protection device with its ultra-high sensitivity in the field of cooker safety is emerging.

1. principle

The ion induction flameout protection device works by using the ionization characteristics of the flame. When the cooker is burning normally, the flame ionizes the surrounding air, producing positive and negative ions to form a conductive path, and the induction needle detects the current and maintains the solenoid valve open. If the flame is extinguished, ionization disappears, current interruption, solenoid valve quickly closed, cut off the gas to prevent leakage.

2. characteristics

The utility model has the advantages of fast response speed, cutting off the fuel gas within a few seconds after the flame is extinguished, and high safety. However, high sensitivity is susceptible to environmental disturbances, such as wind blowing or spillage of liquid, resulting in misjudgement of stalling. In addition, it relies on battery power supply, needs to replace the battery regularly, and has complex structure and high cost, which is mostly used in scenarios with strict safety requirements.

(3)、Photoelectric induction

With the rapid development of science and Technology, the photoelectric induction flameout protection device arises at the historic moment. It represents the future direction of flameout protection technology and brings a new guarantee for kitchen safety.

1. principle

The photoelectric induction type uses the one-way conductivity of the ionized gas in the flame to realize the protection. When the gas burns normally, the ions in the flame form a weak current, and the circuit is continuously conducted by the ultraviolet photosensitive tube or the photosensitive resistance sensor, so that the solenoid valve remains open. Once the flame goes out unexpectedly, the ion current is interrupted, the sensor signal disappears, and the solenoid valve quickly closes the gas channel and cuts off the gas source under the action of the spring. The technology achieves millisecond response through photoelectric signal conversion and effectively avoids the risk of gas leakage.

2. characteristics

The anti-interference ability of this device is very strong, and it can work stably in complex environment, and is not affected by external light, electromagnetic and other factors. Its core advantage is the ultra-fast response speed, can be completed in 0.1 seconds and cut off the flameout detection, compared to thermoelectric 5-10 times. Use ultraviolet photosensitive tube life up to 5000 hours, strong anti-interference ability, can accurately identify 1 meter away from the match flame. The single gas path is controlled by independent solenoid valve in structure, and the failure of single sensor does not affect the use of other burners.

 (4)、Environmental adaptability

Kitchen environment is complex and changeable, oil, moisture, temperature changes and other factors may affect the electrical equipment. With its excellent environmental adaptability, the flameout protection device has become an all-rounder fearless of challenges and can work stably in a variety of harsh environments.

1. anti-interference ability

The flameout protection device has good anti-interference ability, can adapt to different types and pressures of gas supply, and can work stably in different use scenarios.

2. anti-oil and anti-fouling design

At the same time, in view of the characteristics of Chinese kitchens with more oil pollution, many devices have adopted anti-oil and anti-fouling designs, such as removable structures or easy-to-clean surface treatment, convenient for users to clean and maintain, ensure that the performance of the device is not affected by oil.

3. waterproof and moisture proof

In waterproof and moisture-proof, flameout protection device has also done a careful design. It can effectively prevent water vapor or liquid into the device, to avoid short circuit caused by moisture or component damage, thereby extending the service life of the device.

Conclusion

With its wisdom and tenacity, the flameout protection device weaves a safety net for our kitchen life. It allows us to cook delicious food without worrying about accidents, enjoy the fun of creation. Let us cherish the security brought by this technology, while cooking food, take care of this hard-won happiness, let the kitchen is always filled with security and joy.