Study on the temperature and pressure of oxygen cylinder attached grease in filling process

One of the reasons of chemical explosion is the grease enters the oxygen cylinder when fill and use it. The grease in the cylinder will be oxidized, which can elevate the temperature. The high temperature will decrease the ignition point of grease, and then the combustion and explosion will occur. To prevent such accidents in the cylinder filling process, the temperature of the gas in the cylinders must be strictly controlled. In this paper, the heat transfer of the cylinder wall is studied by the method of calculation and the pressure-temperature law of outer wall of the cylinder is obtained. Therefore, this paper provides a reference for chemical changes in the cylinder filling process. The grease should be degreased first before the cylinder filling process. The temperature of cylinder should always be ensured normal during the cylinder filling process.