According to the Beijing Youth Daily, the General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) announced the sampling results of gas stove products on the market. During sampling inspection, it was found that the main problems of unqualified products came from unqualified gas pipeline system, such as Opel brand "JZ20Y.2-988" gas stove; In addition, the content of carbon monoxide in the flue gas of some products exceeds the standard, such as Gebang brand "JZY2-226AX" model products, which may lead to carbon monoxide poisoning of users.
Carbon monoxide is the main component of the so-called "gas" we are familiar with. This gas is colorless, odorless, tasteless and non-irritating. Carbon monoxide has a long life in the atmosphere and can stay in the atmosphere for 2-3 years. Therefore, it is an air pollutant with strong accumulation.
Carbon monoxide mixed in the atmosphere is a poison harmful to blood and nerves. It enters the human body with air, enters the blood circulation through alveoli, and can form a reversible combination with hemoglobin in blood cells, myoglobin outside blood and cellular respiratory enzymes containing ferrous iron.
As we all know, oxygen is an indispensable element in human life, but the affinity of carbon monoxide and hemoglobin is 200-300 times greater than that of oxygen and hemoglobin. After carbon monoxide enters the human body, it not only reduces the oxygen carrying capacity of red blood cells and causes hypoxia, but also slows down and inhibits the analysis and release of oxygen and hemoglobin, resulting in tissue hypoxia. In the case of hypoxia, the central nervous system, which is most sensitive to hypoxia, first appears cerebral vasospasm, then brain edema, and then cerebrovascular disease, leading to local softening and necrosis in some parts of the brain. Acute carbon monoxide poisoning caused by high concentration, the poisoned person has weak pulse and slow breathing, and finally dies of failure. according to
Experts explained that long-term living in a low-concentration carbon monoxide environment for cardiovascular patients will aggravate the condition and deposit lipids and cholesterol in the blood in the blood vessels. Chronic carbon monoxide poisoning can lead to neurasthenia syndrome such as headache, dizziness and memory loss. In the epidemiological investigation, through the observation of smoking and non-smoking pregnant women, it is found that the fetus of smoking pregnant women tends to be low weight and mentally retarded.
Therefore, in order to ensure the safety of users, experts pointed out that when purchasing gas stoves, in addition to the choice of product types, products with high safety requirements such as gas stoves should also be carefully selected in quality:
First, buy products produced by manufacturers with production licenses. At present, the production of domestic gas cookers in China implements the product production license system. Therefore, when purchasing, we must recognize the production license number, factory name, address and quality certificate marked on the product. Consumers are advised to buy well-known brands and products with good after-sales service guarantee in regular shopping malls or specialty stores.
The second is to observe the appearance of the gas stove. Some products made of cast iron, steel plate and other materials should be painted evenly, without foaming or falling off. The overall structure of the gas stove should be stable and reliable, the stove surface should be smooth and flat, without obvious warping, and all parts should be installed firmly and reliably without looseness.
The third is the trial. The installation position of the switch knob, nozzle and ignition device of the gas stove must be accurate. When the gas is ignited by ventilation, the gas should be ignited every time (starting 10 requires at least 8 times to ignite the flame), and the flame should burn all the fire holes within 4 seconds after ignition. When the electronic igniter is used to ignite, the human body will not feel electric shock when touching the metal part of the cooker. When the flame burns, it should be uniform, stable and blue, without yellow fire and red fire.
Four, the installation and maintenance of cooking stoves must be carried out by the manufacturer or its designated after-sales service unit trained and qualified professionals.
In addition, experts also remind consumers to regularly check stoves, pipes, cabinets and so on. It is recommended to clean up the carbon deposits in gas appliance once every six months and check whether the gas hoses are aging. Pay attention to service life. Under normal circumstances, the service life of gas stoves is 8 years. If there are faults such as air leakage, water leakage and deterioration of combustion conditions, they should be scrapped in time to eliminate potential safety hazards so as to avoid disaster.
At the same time, consumers should regularly clean the surface of the gas stove, including the burner, and adjust the air door at the bottom of the product in time according to the instructions to ensure the full combustion of gas, minimize the production of carbon monoxide and protect the health of consumers.