Traps work principle

Posted by uuuseff on November 19th, 2019

Trap is used in steam pipe network and equipment, can automatically discharge condensate, air and other non-condensable gas, and water vapor leakage valve. Rely on the steam trap condensate water Wei altitude changes and action, steam trap works: 1. Steam traps are installed between steam heating equipment and condensate return headers. When driving, the bucket is at the bottom and the valve is fully open. Condensate into the trap after flowing to the bottom of the bucket, filled with the valve body, all submerged barrel, and then, condensate water through the fully open valve to the backwater header. 2. Steam also enters the trap from the bottom of the barrel, occupying the top of the barrel and creating buoyancy. Slowly rise the barrel body, and gradually move the lever toward the seat until the valve is completely closed. Air and carbon dioxide gas pass through the barrel vent holes and collect at the top of the trap. The steam exhausted from the vent will condense due to heat dissipation from the trap. 3. When the incoming condensate begins to fill the barrel, the barrel begins to exert a pulling force on the lever. As the condensate level continues to rise, the resulting force increases until it overcomes the pressure differential and opens the valve. 4. The valve begins to open, and the pressure differential acting on the valve flap will decrease. The barrel will rapidly drop so that the valve is fully open. The non-condensable gas accumulated at the top of the trap is discharged first, and then the condensed water is discharged. When the water flows out of the barrel body, the dirt flows out of the trap together. While the condensate is being discharged, steam begins to re-enter the trap and a new cycle begins again.

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