Steam Condensate System

• Condensate, blowdown from D-565, and boiler feed water from H-530 are routed to D-566.
• Make-up 60 psig steam is provided by the 100 psig steam letdown, controlled by a letdown valve.
• 60 psig steam from the top of D-566 goes to various utility stations, analyzer house, control house, E-210, E-320, E-406, E-530, H-530 (Snuffing Steam), E-130, E-140, E-745A-H, J-M, E-740, E-741, and E-730.
• Condensate from the bottom of D-566 is routed by P-566A/B (60 psig Condensate Pumps) to E-460, E-470, and E-381.
• Condensate from all 60 psig steam users is routed to D-567.
• Condensate from the bottom of D-567 is routed by P-567A/B (Condensate Drum Pumps) to merge with condensate from P-566A/B and is routed to D-562.
• Condensate from T-411 reboiler can be merged with condensate from D-567 and P-566 A/B and routed by P-414A/B to Unit 1092.
• D-567 overhead supplies letdown to D-571 (15 psig Steam Drum).
• Steam is then routed to the shell side of E-567 (D-567 Vent Condenser) and cooled with cooling water on the tube side.
• Condensed steam is routed back to D-567 bottoms.
• Uncondensed vapors can be vented to the atmosphere through Z-567 (Silencer).

Equipment Details

• The following equipment is described: D-566, P-566A/B, D-567, E-567, Z-567, and P-567A/B.

D-566 (60 psig Steam Drum)

• Dimensions: 3’D x 11’L.
• Function: stores 60 psig steam and separates it from condensate.
• 60 psig steam enters the side, condensate exits the bottom, and 60 psig steam exits the top.

P-566A/B (60 psig Condensate Pumps)

• Type: single-stage centrifugal pumps.
• Motor: 7.5 HP, 3510 RPM, horizontal, induction electric motors.
• Function: routes water from D-566 to E-460, E-470, D-562, and E-381.

D-567 (Condensate Collection Drum)

• Dimensions: 4’D x 10’L.
• Function: collects condensate and separates 15 psig steam from it.
• Condensate enters the top side, condensate exits the bottom, and 15 psig steam exits the top.

E-567 (D-567 Vent Condenser)

• Type: shell and tube exchanger.
• Function: cools and condenses overhead vapor from D-567 (shell side) using cooling water (tube side) before routing it back to D-567

Z-567 (Silencer)

• Function: reduces the sound of vapor release to the atmosphere from D-567.

P-567A/B (Condensate Drum Pumps)

• Type: single-stage centrifugal pumps.
• Motor: 10 HP, 3510 RPM, horizontal, induction electric motors.
• Function: routes condensate from D-567 to the discharge line of P-566A/B.