The working principle of steam trap
1.Steam trapInstalled between the steam heating equipment and the condensate return header.When driving, the barrel is at the bottom,valveFully open.After entering the trap, the condensate flows to the bottom of the bucket, fills the valve body, and completely immerses the bucket body. Then, the condensate water is discharged to the return water header through the fully open valve.
2. The steam also enters the trap from the bottom of the barrel and occupies the top of the barrel to generate buoyancy.The barrel slowly rises and gradually moves the lever toward the valve seat until the valve is completely closed.Air and carbon dioxide gas pass through the vent hole of the barrel and gather at the top of the trap.The steam discharged from the vent will be condensed due to the heat dissipation of the trap.
3. When the incoming condensed water begins to fill the barrel, the barrel begins to exert a pulling force on the lever.As the condensate level continues to rise, the force generated continues to increase until the pressure difference can be overcome and the valve can be opened.
4.valveWhen it starts to open, the pressure difference acting on the disc will decrease.The barrel will drop quickly, making the valve fully open.Accumulate inTrapThe non-condensable gas on the top is discharged first, and then the condensed water is discharged.When the water flows out of the barrel, the dirt will flow out of the trap.At the same time as the condensate is discharged, steam starts to enter the trap again, and a new cycle begins.