Gas stove

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In the smoke of human civilization, flame is always the soul of cooking. From drilling wood to make fire in ancient times to the popularization of smart gas stoves today, the changes in the ignition of gas stoves are a technological epic in which human beings have continuously upgraded their control over fire. Every innovation in ignition technology carries the pursuit of convenience, safety and environmental protection, which not only changes the appearance of the kitchen, but also profoundly affects people's quality of life.

1、Basic ignition technology

(1).Piezoelectric ceramic ignition

①. Principle

Piezoelectric ceramic ignition is based on the positive piezoelectric effect: when an external force hits a piezoelectric ceramic, its internal hexagonal crystal structure is deformed, resulting in the separation of positive and negative charge centers, and a high voltage of thousands to tens of thousands of volts is generated at both ends of the material. This high voltage breaks down the air gap (about 2-10 mm) through the electrode, forming an electric spark that ignites the combustible gas.

②. Features

Piezoelectric ceramic ignition does not require an external power supply, and can instantly generate tens of thousands of volts of high voltage by mechanical impact alone. It is safe and has no risk of electric shock, and the material has high stability and a life span of tens of thousands of times. At the same time, it is anti-vibration and anti-corrosion, and can achieve efficient and reliable ignition under various conditions.

(2).Electronic pulse ignition

①. Principle

The electronic pulse igniter rises the battery voltage from 1.5 V to 15KV through a high-frequency oscillation circuit. When the knob is pressed, a dense spark chain is formed between the electrodes.

②. Features

Different from the "single attack" of piezoelectric ceramics, electronic pulse ignition is like a continuous gun, which can be accurately ignited no matter how the gas concentration changes. This technology has greatly improved the ignition success rate of built-in gas stoves, which is close to 99%, and has become the mainstream ignition of modern kitchen gas stoves.

2、Automatic and intelligent ignition

(1).Automatic pulse ignition

①. Principle

Pulse ignition requires pressing the knob, while automatic pulse ignition introduces a delayed discharge function. After pressing the knob, the solenoid valve opens the gas passage first, and the pulse igniter discharges for 3-5 seconds. When the flame burns stably, the thermocouple senses the temperature and generates a micro-current to maintain the solenoid valve open.

②. Features

Automatic pulse ignition has high ignition rate (up to 98%), fast response (ignition within 0.3 seconds) and strong adaptability, and can work stably under or low temperature conditions. Its continuous discharge design (discharge time 6-15 seconds) does not require pressing the knob, making the user experience more convenient.

(2).Intelligent induction ignition

①. Principle

The intelligent induction system has the function of flameout protection. When the pot leaves the stove or the flame is blown out by the wind, the ion induction needle detects the positive and negative ion currents in the flame to identify the flameout state within 0.1 seconds; Thermocouples use temperature differences to generate electromotive force.

②. Features

The dual induction mechanism ensures that when the flame is extinguished, the gas supply is cut off within 0.5 seconds to prevent gas leakage and provide a reliable guarantee for kitchen safety.

3、Energy-saving ignition

(1).Low-energy ignition

①. Principle

The new generation of pulse igniter reduces the energy consumption of a single ignition to 0.01 milliwatts by optimizing the circuit design. With a low-power solenoid valve, one AA battery can support more than 10,000 ignitions.

②. Features

This low-energy design not only allows users to replace batteries, but also reduces the cost of use and the pollution of battery waste, which is in line with the concept of environmental protection.

(2).Zero emission ignition

①. Principle

The zero-emission gas stove adopts full premixed flameless combustion technology. After the gas and air are mixed according to the precise ratio through the multi-stage premixed chamber, it is converted into thermal radiation energy through the infrared radiation plate. When igniting, the electronic pulser generates a high-voltage electric spark to ignite the mixed gas. There is no visible open flame during the combustion process, and only infrared rays are used to directly heat the pot, avoiding the emission of nitrogen oxides and carbon monoxide generated by open flame combustion, and achieving zero generation of pollutants.

②. Features

The thermal efficiency of this technology can reach more than 70%, which saves energy by more than 35% compared with the stove, and the combustion is sufficient without black smoke, and the cooking utensils are clean. Strong wind resistance, not easy to be flameout due to airflow interference, and equipped with a thermocouple flameout protection device, the air source will be cut off within 0.3 seconds when accidentally flameout. In addition, the combustion noise is less than 50 decibels, and the waste heat recovery system can reuse waste heat, which has significant advantages in comprehensive environmental protection and energy efficiency.

Conclusion

The evolution of gas stove ignition is a splendid chapter intertwined with technology and humanities. It has witnessed the great leap of human beings from conforming to nature to transforming nature, making cooking from cumbersome to convenient, from dangerous to safe, and from pollution to environmental protection. In the future, the light of technology will continue to illuminate the innovative road of gas stove ignition technology, bring us a more intelligent, efficient and green cooking experience, and make the kitchen a happy space full of technological charm and warm emotions.