People's pursuit of delicious food is increasing day by day, and three meals a day are inseparable from the essential kitchen appliance-gas stove. Although many people now choose to use kitchen appliances such as induction cookers or electric ceramic stoves with more precise temperature control as cooking tools, the vast majority of Chinese people are still more accustomed to using gas stoves.

 

　　Everyone can use it simply, but not everyone knows much about gas stoves. Minor faults often occur due to improper installation of spare parts or improper use. At this point, don’t worry, as long as you learn how to troubleshoot these common faults, everything will be solved. At the same time, mastering the relevant usage skills can also make the gas stove at home more worry-free, safer and more energy-saving.

 

　　Below, the editor has sorted out several common faults and troubleshooting methods of gas stoves. If you are careful, you can quickly learn them.

 

　　1. What is flame removal and defire?

 

　　When a normal gas stove burns, the speed of the gas leaving the fire hole is consistent with the burning speed, and the flame will be in a stable burning state. However, of course, when the speed of the gas jet leaving the fire hole is greater than the burning speed, the flame will be in a trembling state. This phenomenon It's called Liyan.

 

　　If the speed of gas jetting away from the fire hole continues to increase, the flame will continue to move upward, the combustion will be in an unstable state, the flame will be erratic, or even completely extinguished. This phenomenon is called defire.

 

　　The hidden danger caused by flame separation and defire is that these unburned leaked gases are dispersed indoors and form a large amount of toxic or explosive gases in the air, which can easily cause accidents and are very dangerous. In order to prevent this problem from happening, gas stoves are usually equipped with flame stabilizers.

 

　　Causes and troubleshooting methods:

 

　　① If the gas stove appears to be out of flame or even out of flame, it is probably because the damper is opened too wide. In this case, you only need to adjust the damper on the back of the gas stove.

 

　　② This problem may also occur when the gas pressure is too high. Therefore, when using liquefied gas cylinders, you need to ask a professional to adjust the pressure reducing valve. If you use pipeline gas, you can try turning down the gas main switch.

 

　　③This problem will also occur once the air flows too fast in the kitchen because the draft is too strong. At this time, you only need to close the doors and windows appropriately and set the range hood to a weak setting.

 

　　④ It may also be related to the fire cover and fire cover holder not matching well (or deformed). If deformation occurs, replace the deformed fire cover and fire cover holder, and the fault can be eliminated. At the same time, the fire cover and fire cover of some stoves The cover base is equipped with a positioning hole limiter, which must be aligned with the positioning hole when assembled.

 

　　2. What is tempering?

 

　　When the speed of gas jetting away from the fire hole is less than the combustion speed, the flame will shrink into the inside of the fire hole, causing the mixture to burn in the burner, destroying the primary air injection, and forming incomplete combustion. This is now called backfire. .

 

　　When combustion produces backfire, a backfire noise will appear first, and then the combustion in the pipeline near the nozzle will continue to produce noise. When the valve is closed suddenly, backfire noise will also occur as the flame goes out. Coke oven gas is more likely to produce backfire noise than natural gas and liquefied petroleum gas.

 

　　Causes and troubleshooting methods:

 

　　① If the opening of the air regulating plate is too large, the primary air coefficient will be too large, which can easily cause tempering. At this time, it can be eliminated by adjusting the air regulating plate.

 

　　② The gas source pipeline, pressure reducing valve, burner nozzle, and flame L are blocked by rice residue, carbon black, or other substances. The gas pressure in the liquefied gas cylinder is insufficient, which will reduce the gas outflow speed and cause backfire. At this time, it can be avoided by cleaning the dirt and inflating

 

　　③ Sometimes, the nozzle is incorrect or the nozzle aperture is eccentric, which hinders the gas ejection and causes backfire. At this time, the center line of the gas nozzle should be corrected or the nozzle should be replaced.

 

　　④ There is another situation where the gas burning time is too long and the temperature of the nozzle and nozzle is too high, which will accelerate the burning speed of the flame and cause backfire. At this time, the gas can be turned off and the nozzle and nozzle can be cooled down before restarting. ignition.

 

　　3. What is Huang Yan?

 

　　The normal combustion flame of gas is light blue. When there is insufficient primary air, hydrocarbons decompose under high temperature and oxygen-deficient conditions to form solid carbon particles, which are dispersed in the gas like mist. When these carbon particles burn, they will show a bright yellowish flame, sometimes also red. Yellow is called yellow flame. When this happens, the blazing fire seems to be very strong, but in fact the flame is soft and weak, the thermal efficiency is very low, it will accumulate carbon on the bottom of the pot, and cause air pollution.

 

　　Causes and troubleshooting methods:

 

　　① The first situation is due to the stove valve opening being too large, excessive gas, and insufficient air, resulting in a yellow flame. You can increase the air inlet area by increasing the opening of the air regulating plate, and the flame will change from yellow to blue.

 

　　② If there is rust or debris in the ejector tube, it will affect the ejector force and produce yellow flames. At this time, remove the ejector to clean the dirt, and then install the burner to eliminate the yellow flames.

 

　　③ If the nozzle and the ejector tube are not concentric, it will also cause yellow flames. The position of the burner should be adjusted so that the centers of the two are on the same axis.

 

　　④ For users who use liquefied petroleum gas, when the gas in the cylinder is almost used up, due to the high content of heavy components in the cylinder, it is not suitable for gasification. Combustion requires a lot of air and yellow flames will appear. At this time, the cylinder should be inflated in time.

 

　　⑤ For users who use natural gas and use liquefied petroleum gas mixed with air as a backup gas source, yellow flames are prone to occur during peak gas consumption, mainly due to the unstable composition of liquefied petroleum gas mixed with air during peak gas consumption. They can only Coordinated and resolved by the gas operation department.

 

　　All in all, a gas stove is an essential household appliance in the kitchen. It is inevitable that it will malfunction sometimes when used every day. Don't worry if there is a problem. Just analyze the specific problem in detail and find the corresponding solution.