Steam trap overview
2025-09-15 09:07:14
A steam trap is a critical component in steam piping systems and equipment, designed to automatically remove condensate, air, and other non-condensable gases while preventing the escape of live steam. Based on their operating principles, steam traps can be categorized into three main types: mechanical, thermostatic, and thermodynamic.
One common type is the mechanical steam trap, which operates based on the level of condensate within the device. These traps are typically installed between the steam-heating equipment and the condensate return line. When the system starts, the bucket inside the trap sits at the bottom, allowing the valve to remain fully open. As condensate flows into the trap, it collects at the bottom of the bucket, filling the internal chamber. Once the bucket is submerged, the condensate is released through the open valve into the return header.
Steam also enters the trap from the bottom, rising to the top of the bucket and creating buoyancy. This causes the bucket to slowly rise, moving the lever and eventually closing the valve. During this process, air and carbon dioxide are vented through small orifices in the bucket and accumulate at the top of the trap. The steam that escapes through the vent cools down and condenses due to heat loss from the trap’s body.
As more condensate enters the trap, the bucket begins to exert an upward force on the lever. With the rising condensate level, this force increases until it overcomes the pressure differential, causing the valve to open again. When the valve opens, the pressure acting on the flap decreases, allowing the bucket to drop quickly and the valve to fully open once more.
At this point, any non-condensable gases trapped at the top are released first, followed by the condensate. As the water exits the trap, it carries away any debris or contaminants with it. Simultaneously, steam re-enters the trap, restarting the cycle. This continuous process ensures efficient operation, maintains system performance, and prevents energy loss due to trapped condensate or air.
Large Caliber Ice Cream Cone,Crispy Cone With Thick And Crispy Skin,Cone With Edges Similar To Petals,Corn Cream Puff Crispy Wafer
Tianjin Yongkang Food Co., Ltd , https://www.yongkangfood.com