The function of a steam trap

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The function of steam traps (1) Li Shaopeng, Technical Department, Hangzhou Watt Energy Saving Engineering Co., Ltd. After being generated in the boiler, steam is sent to heat exchange equipment through pressure pipes; we refer to this network of pipes for transporting steam as the heat network. At the start of operation, the steel pipes at room temperature, as well as the pipe fittings and flanges, must be heated to a temperature close to that of the steam; this will cause some of the steam to condense. When steam flows through the heating network, good insulation measures are necessary, but it is still impossible to prevent heat loss to the surrounding environment due to the temperature difference between the external environment and the steam, which results in some of the steam condensing. We refer to this condensed steam as pipe losses. Steam containing some condensed water becomes humid and corrosive; as more condensed water is present, the high-speed flowing steam provides sufficient \"head pressure\" to create high-kinetic-energy \"water projectiles\". “\"Water bullets\" can cause a series of damages to steam systems; pipes, valves, elbows, flanges, instruments, and heat exchange equipment may all be deformed or damaged by the impact force of these \"water bullets,\" which can lead to safety accidents in severe cases. Therefore, this portion of condensed water must be drained promptly, which requires the use of a trap. We generally refer to such traps as main line traps. When steam enters the heat exchange equipment, it heats the medium being heated, releasing latent heat in the process and turning into condensed water. To maintain a continuous heat output, after the steam releases its heat, the condensate must be removed promptly so that it can return to the boiler to carry heat once again. The presence of condensate not only hinders the transfer of heat but also can cause problems such as water hammer, vibration, and corrosion in heat exchangers. Therefore, the drain valve must be able to detect condensate effectively and remove it by utilizing the positive pressure difference between the steam system and the condensate system. While draining condensate, if any steam that has not released its \"latent heat\" is discharged directly, it represents a waste of energy. One of the main functions of a steam trap is to effectively drain condensate while preventing uncondensed steam from escaping. In short---vapor barrier and drainage.