Recently, the Shanghai Municipal Market Supervision and Administration Bureau sampled and inspected 49 batches of household gas stoves and household gas water heaters sold in the sales market. As a result, 23 batches of products failed, involving brands such as Konka cabinets, Boss appliances, and Sakura kitchens. . Among the key new projects that are not yet closed are the concentration of carbon monoxide in dry industrial waste gas, the error of heating, labeling and packaging, and labeling of energy consumption levels. Although the safety factor of pipeline gas is greatly improved compared to liquefied gas tanks, gas is still one of the key sources of safety hazards in daily life. News reports such as gas leaks and gas explosions are commonly used in newspapers to make everyone pay more attention to the quality and safety of gas supplies.

 

 

The key to the product quality problems of gas supplies discovered during the sampling inspection is that the carbon monoxide concentration value in dry industrial exhaust gas and the error of the heat supply are not passed. The types of household gas are generally gas, compressed gas and synthetic liquefied petroleum gas. Although the application of gas in different regions is very different, the principle of gas is all the same-flammable gas and gas are mixed and ignited to generate heat. If the oxygen cylinder that the gas touches is not sufficient and the ignition is not complete, it will cause harmful substances such as carbon monoxide and nitrogen oxides, which will endanger your health. To test the water content of carbon monoxide in organic waste gas caused by gas ignition, non-destructive infrared spectroscopy detection techniques such as non-dispersive infrared digestion and absorption method and vapor filtration related infrared digestion and absorption method can be used. During the inspection, since the water vapor in the industrial waste gas is much higher than normal air and has a large transformation range, the water vapor must be removed, and only the dry industrial waste gas at the remaining thermodynamic temperature is used as the inspection standard to measure carbon monoxide. Concentration value.

 

 

When there is no detection equipment, people can observe the flame carefully to easily distinguish the quality of gas products. If the quality of the gas supplies reaches the standard, the gas can be fully ignited, and the flame will be sky blue. When the flame is light yellow and there is black smoke from the exhaust pipe, it means that a lot of carbon monoxide is created when the gas is ignited. At this time, you must consider the replacement of gas supplies or clearly propose after-sales maintenance services.

 

 

Even if there is no problem with product quality, people should pay attention to maintenance in daily applications. Clean the cooker immediately after application and turn off the main gate valve of the cooker. After long-term application, the rubber hoses for pipelines should be removed and replaced to avoid embrittlement. Only by enhancing the awareness of prevention can we reduce safety accidents and ensure safety.