The flash point and ignition point of the oil of the hydraulic oil filter
2018/5/15 Viewers:
Under the specified conditions, the oil is heated by the oil. With the increase of the oil temperature, the concentration of the oil vapor on the oil level in the air is also increased. When it is raised to a certain temperature, the content of the oil vapor and the air is flammable. If the flame is close to the mixture, it will flicker and produce it. The lowest temperature for this phenomenon is known as the flash point of petroleum products. At the temperature of the flash point, the mixture of oil and air can only be burned, but the liquid oil can not be burned, because the rate of oil evaporation is slow at the temperature of the flash point. At that time, the mixture of oil and steam was quickly burned out, and there was not enough time to evaporate a batch of new Yan gasoline necessary for combustion, so the combustion stopped. In essence, flash point is nothing but a tiny explosion. When the gas is mixed with air, an explosive mixture is formed, and the explosion occurs when the flame approaches it. But not all mixtures can explode, and too little or too much combustible gas in the mixture will not explode. The excess air absorbs heat from the explosion point due to excessive air, so it does not cause heat to spread to other parts and cause the possibility of burning other parts of the gas; over time, the mixture does not explode because of the lack of oxygen in the mixture. According to the physical nature, the flash point is equivalent to the temperature of the heating oil to make the oil vapor concentration in the air reach the lower limit of the explosion, that is to say, the oil is usually flicker at the time of the explosion. Except for gasoline, all other oils can not be heated at room temperature, and the steam concentration required for the mixture can not be caused by the heating of the oil. When the oil is heated in a certain condition, when the temperature of the oil reaches the flash point, it will continue to heat the oil and make the mixture of oil vapor and air contact with the flame, which is not less than 5S, which is called the ignition point of the oil. If the oil is heated to a higher level, the mixture of steam and air does not require the temperature of the combustion surface to be self ignited. It is called the spontaneous combustion point. The temperature of the spontaneous combustion point and the flash point is about the difference of Baidu.
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