In the autumn and winter season, the frequency of household gas stoves is rising. At this time, the problem of air leakage is more likely to occur. Especially the gas stoves in the home have been used for several years. Households close to the upper limit need to be especially careful. In this case, air leakage occurs due to pipeline aging. The possibility of danger is much greater.
Everyone should be especially careful. In the event of a gas stove failure, be sure to contact the after-sales personnel for repairs. Do not disassemble and repair it yourself, or even look for people on the street to repair. However, as a must-have before the home, you must know the common faults and troubleshooting methods of the following gas stoves.
1. What is the flame and fire?
When the normal gas stove is burning, the speed of the gas leaving the fire hole is compatible with the burning speed, and the flame is in a state of stable combustion, but of course, when the velocity of the gas jet from the fire hole is greater than the burning speed, the flame is vibrating at this time. It is called the flame.
If the speed of gas injection from the fire hole continues to increase, the flame will continue to move up, the combustion is in an unstable state, the flame is erratic, or even completely extinguished. This phenomenon is called de-fire.
The hidden danger from the flame and the fire is that these unburned leaking gas is emitted indoors, and a large amount of toxic or explosive gas is formed in the air, which is very likely to cause an accident and is very dangerous. In order to prevent this problem from occurring, a flame stabilizer is usually disposed in the gas cooker.
Causes and troubleshooting:
1 The gas stove appears to be separated from the flame or even fire. It is probably because the damper opening is too large. At this time, only the small damper can be adjusted on the back of the gas stove;
2 This problem may occur when the gas pressure is too high. Therefore, when using a liquefied gas cylinder, you need to ask the professional to adjust the pressure reducing valve. If you use the pipeline gas, you can try to turn the gas main switch off a little;
3 This problem can occur once the kitchen air is flowing too fast, because the ventilation is too strong, then only the small doors and windows should be properly closed, and the hood can be weakened;
4 It is also possible that the fire cover and the fire cover are not matched (or deformed). If there is deformation, the deformed fire cover and the fire cover are replaced, and the fault can be eliminated. At the same time, the fire cover and fire of some cookers The cover seat is equipped with a positioning hole limit and must be aligned with the positioning hole assembly.
2. What is tempering?
When the velocity of the gas sprayed off the fire hole is less than the burning speed, the flame will shrink into the inside of the fire hole, causing the mixture to burn in the burner, destroying the emission of the primary air, and forming incomplete combustion, which is now called tempering. .
When the combustion produces tempering, a tempering noise first appears, and then the combustion in the pipeline near the nozzle continues to generate noise. Suddenly closing the valve, tempering noise will occur as the flame is extinguished. Coke oven gas is more prone to tempering noise than natural gas and liquefied petroleum gas.
Causes and troubleshooting:
1 The opening degree of the air distribution plate is too large, so that the primary air coefficient is too large, which is easy to cause tempering. At this time, it can be eliminated by adjusting the air conditioning plate;
2 gas source pipeline, pressure reducing valve, burner nozzle, firearm L are blocked by rice slag, carbon black or other substances. The gas pressure in the liquefied gas cylinder is insufficient, which will reduce the gas outflow speed and cause tempering. At this time, it can be avoided by cleaning up dirt and aeration;
3 Sometimes, due to nozzle irregularity or eccentricity of the nozzle aperture, the gas is blocked and tempered when it is ejected. At this time, the center line of the gas nozzle should be corrected or the nozzle should be replaced;
4 There is also a case where the gas burning time is too long, the temperature of the ejector tube and the nozzle is too high, and the burning speed of the flame is accelerated to generate tempering. At this time, the gas can be turned off, and the ejector tube and the nozzle are cooled and then re-heated. ignition.
3. What is Huang Yan?
The normal combustion flame of the gas is light blue. When the air is insufficient at one time, the hydrocarbons decompose to form solid carbon particles under high temperature and anoxic conditions, and are dispersed in the gas like mist. When these carbon particles burn, they will show a bright yellowish flame and sometimes red. Yellow, known as the yellow flame. When this happens, it seems that the burning is very hot. In fact, the flame is soft and weak, the heat efficiency is very low, and the bottom of the pot is carbonized, and it will cause air pollution.
Causes and troubleshooting:
Causes and troubleshooting:
1 The first case is because the opening of the cooker valve is too large, the gas is excessive, the air is insufficient, and yellow fire will occur. By increasing the opening of the wind deflector and increasing the air inlet area, the flame will change from yellow to blue;
2 There is rust or debris in the ejector tube, which will affect the ejector force and produce yellow fireworks. At this time, remove the ejector to remove the dirt, and then install the burner to eliminate the yellow flame;
3 nozzles and the ejector tube will also lead to yellow flame, the burner position should be adjusted so that the center of the two is on the same axis;
4 users of liquefied petroleum gas, when the gas in the cylinder is running out, because the heavy component content in the bottle is high, it is not suitable for gasification, and the combustion requires more air, and yellow flame will appear. At this time, it should be inflated in time;
5 For users who use natural gas and use liquefied petroleum gas mixed air as a backup gas source, yellow flame is likely to occur at the peak of gas consumption, mainly due to the instability of the liquefied petroleum gas mixed air component at the peak of gas consumption. Coordinated by the gas operation department.
All in all, the gas stove is a must-have household appliance in the kitchen. It is inevitable that it will malfunction sometimes every day. If you have a problem, don't worry, analyze the specific problem and find the corresponding solution.
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