Is domestic natural gas prone to explosion?

Question 1: Will natural gas explode? If your home uses a stove with a flameout protection device, it will not explode even if it is turned on for a day.

The principle of the flameout protection device is to automatically cut off the gas inlet valve to prevent gas leakage once the fire is extinguished. At present, most stoves have used stoves with flameout protection devices, especially in some big cities, such as Shanghai, which banned the sale of stoves without flameout protection devices ten years ago. Therefore, you generally cannot buy a stove without a flameout protection device.

Moreover, the deflagration of gas is related to the size of the space and whether it is ventilated.

Question 2: Will the natural gas used at home explode? Of course it will explode if used improperly. For example, if you fail to turn off the gas valve in time after cooking, when the natural gas in the air in the kitchen reaches a certain proportion and encounters an open flame, it will explode. If the natural gas does not leak, it is not possible to cook normally. It will explode; so when using natural gas or coal gas, you must pay attention to closing the gas valve in time after use, and pay attention to observe whether there is any gas leakage.

Question 3: Why does natural gas explode? There is essentially no difference between combustion and explosion. The only difference is:

1. Safe combustion must be fire and other gases (here Gas is of course gas), and unsafe combustion is fire such as gas;

2. The best gas is the continuous and stable combination of gas and supporting gas (such as air or oxygen, etc.) at the optimal ratio Transportation (that is, both gas and gas-assisted gas are controllable), and the combustion exhaust gas must be discharged in time. The combustion of household stoves and water heaters is now basically in this mode;

3. The so-called gas explosion , it must be a serious violation of the above principles, that is, the leaked gas and supporting gas are highly mixed, and the concentration is within the explosion limit range, and the fire must be behind the scenes. The pipeline explosion mentioned in the news report is a rough description, because the explosion cannot be too far away from the pipeline. As long as there is a certain distance, the gas will be quickly diluted and mixed into the atmosphere. In other words, the gas explosion is mostly along the pipeline. The first explosion, as for the secondary or even multiple subsequent explosions after the pipeline is exploded, are often even more uncontrollable, because large gas transmission pipelines operate at medium or even high pressure and will not stop gas supply due to explosions. , unless the pipeline system automatically shuts down after the intelligent valve detects abnormal flow or pressure drop, not to mention, it is also common for the automatic control system to be blown out of the way.

Question 4: Will natural gas used at home explode? If domestic natural gas leaks, it will reach a certain concentration (about 10) in the air. It will explode when exposed to an open flame or even a tiny spark when an electrical switch comes into contact. Tragic accidents happen from time to time.

Question 5: What hidden dangers lead to gas explosions? part1: Kitchen safety is a hidden danger. Five common problems to be alert to

With the development of the market economy, the variety of household gas stoves has increased, with novel styles, enhanced safety measures, and improvements in materials, functions, and performance. However, today with frequent gas stove accidents, there are still many problems worthy of our understanding, attention and prevention.

Hidden danger 1: The service life of the gas stove has exceeded

Case: On July 18, the glass baffle of a Yimei user's gas stove burst suddenly. The cause of the accident was: the service life of the gas stove If it is too long, the trachea will be blocked.

Warning: According to the "Safety Regulations for Household Gas Burning Appliances", the service life of gas stoves is 8 years from the date of sale. Based on the calculation of cooking three meals a day for two hours each time, the gas stove should be used for six hours a day. Under normal circumstances, the gas stove should be completely renewed after 6 years of use. The air inlet valve and gas stove should be replaced every other year during use. Frequently used parts such as pulse valves and ignition knobs are used to prevent safety accidents caused by aging gas stoves.

Hidden danger 2: The gas stove’s material quality is substandard and the design process is unreasonable

Case: On May 28, a Yuhuan citizen bought a new gas stove that exploded on the same day, causing multiple wounds all over his body. He was burned. The cause of the accident was: the connection between the gas and the gas stove was not tight enough.

Warning: The self-explosion of tempered glass is mainly caused by unstable nickel sulfide in the glass, in which temperature difference is an important factor. High temperature will increase the activity of nickel sulfide and destroy the stress balance of tempered glass. After long-term heating, some stones will change over time, causing cracks inside the glass, causing the glass to break. Relevant experts said that there are three main reasons for the accident: first, there are quality problems in the tempered glass itself; second, improper operation during the disassembly and installation of the appliance caused the panel to burst; third, the lack of inspection and maintenance after a long period of use, resulting in internal components Exploded due to improper work.

Hidden danger three: counterfeit or copycat brand gas stoves

Case: On July 10, the tempered glass panel of a household’s gas stove in Changsha exploded. The cause of the accident was: the one he purchased was Copycat gas stove.

Warning: Many families purchased gas stoves several years ago, and many of them are copycat brands, or the brands have disappeared. Therefore, if a problem or danger occurs during use of the product, it is difficult to contact the manufacturer for repair or compensation. Gas stove products of this type should be replaced as soon as possible. In summer, the temperature in the kitchen is often high. Air circulation should be maintained in the kitchen during use. Fans and other electrical equipment cannot be used to directly dissipate heat from the stove.

Hidden danger four: overload use of the stove

Warning: Many gas stove panels explode because the panels remain high for a long time. If two stoves of the gas stove are used at the same time, It is best not to use cooking methods such as steaming, stewing, and stewing for more than four hours. Because gas sources such as coal gas and natural gas have different properties, an explosion may occur when the gas sources are mixed and burned again. I would like to remind consumers that although glass panels are more beautiful and resistant to corrosion and wear, their heat resistance is not as good as stainless steel.

Hidden danger five: damaged gas stove

Warning: If the gas stove is rusted or deformed, a new gas stove should be purchased at this time. The internal requirements of the gas stove are very high for sealing. If there are problems such as deformation and pipe damage, it may cause air leakage, which is a great danger.

part2: Teach you how to choose a gas stove

Gas stove is the most common kitchen appliance for ordinary people. Today I will teach you how to choose a gas stove and popularize some information about gas stoves. Life tips.

1. Identification

Check whether the applicable gas type on the product label is consistent with your home. If you can't find a label on the stove that indicates the type of gas it is suitable for, this stove is definitely a substandard product and must not be purchased.

2. Cooktop materials

There are two main types of cooktop materials: stainless steel and tempered glass. Stainless steel cooktop materials are strong, but stains are difficult to clean after long-term use. At the same time, the thicker the stainless steel cooktop, the better. However, the thickness of some inferior product cooktops is less than 0.3 mm, which is prone to collapse during use and can easily cause personal injury. Glass cooktops are beautiful, easy to clean, and will look as bright as new after long-term use. However, if you buy inferior products, the glass may burst during use.

3. Burner head

The burner head material is mainly made of stainless steel, cast iron and copper forging. Since the burner head is roasted by fire for a long time, it is easy to deform. Therefore, the burner head material Both thickness and thickness are important. Generally, the heavier the burner, the better.

part3: Keep in mind 3 points when using gas stoves safely to ensure safety

1. Ensure air circulation

If the kitchen is not well ventilated, it will cause problems when using the gas stove. Insufficient oxygen in the air in the kitchen can easily cause carbon monoxide poisoning, so the kitchen should have windows that lead directly to the outside, and the height of the kitchen must not...gt;gt;

Question 6: What is currently used in families Will natural gas explode? There has been news like this recently. Generally speaking, it will not explode. There are one-way valves and other protections in the design. The explosion depends on the concentration ratio of gas and oxygen. As long as you pay attention to opening windows and ventilating, it will not explode. , you must be aware of safe use, especially piped gas users. It is strictly prohibited to modify, move, and dismantle gas pipes and gas appliances without permission. Secondly, check the stove frequently, including whether the pressure reducing valve, special hoses, and pipe clamps are aged, loose, cracked, etc. Third, people never leave the stove. After the stove is ignited and used, someone should be present to take care of it to prevent accidental flameout and gas leakage; the gas source must be turned off after using the gas. Fourth, gas must be used rationally. Keep indoor ventilation or turn on the ventilation device when using; avoid the accumulation and explosion of harmful flammable gases. Finally, emergency explosion protection is required in case of danger. If a gas leak is found and the situation is critical, firstly, shut off the gas valve and fire; secondly, do not use any "electrical" appliances such as telephones and power switches; thirdly, open windows for ventilation and exhaust; fourthly, evacuate personnel and seek help.

Question 7: Will natural gas explode? Combustible substances (combustible gases, vapors and dusts) are evenly mixed with air (or oxygen) within a certain concentration range to form a premixed gas. Once it encounters a fire source, it will explode. This concentration range is called the explosion limit. or explosive concentration limits. The concentration explosion range of natural gas is: upper limit 15, lower limit 5.

Generally speaking, natural gas in the air rarely explodes, and many are prone to explosion. That is to say, this range is relatively safe compared with coal gas and liquefied gas.

If there is no external influence, even if it reaches The explosion limit will not explode. This is per se

If high-pressure natural gas explodes in a gas cylinder, the cylinder pressure exceeds the limit.

Question 8 : Will the gas explode if the household gas meter is broken? If there is no air leakage or open flame, it will not explode, but it is a safety hazard

Question 9: Is there any relationship between the explosion of household natural gas and the temperature of the kitchen? Generally, normal temperature will suffice for explosions. Yes, high temperatures may be more dangerous.

Normal use of natural gas is very safe, but if it leaks, it will cause an explosion. Install an HD2000 natural gas alarm to detect the gas concentration in the kitchen in real time, so you don’t have to worry

Question 10: Will the gas pipes at home explode? If the pipes leak and air is mixed in, they may explode when exposed to an open flame.