Condensate Demin Flashcards
1
Q
Demin Limitations
A
Resin Trap - 18(20)
“E” valve - 59.5(60)psig
System - 53(50)psig
Vessel - 22psig
2
Q
Flow Balance Limits
A
<500gpm between vessels
>50(40)psig CBP suction pressure
Controls 1000-4500gpm
3
Q
Max flow through a Demin
A
4800gpm
4
Q
Number of Demin vessels
A
7
5
Q
Purpose of Demin System
A
- Removes suspended solids
- Maintains adequate PH
6
Q
When are additional vessels placed into service
A
Minimum of 2 on startup and additional vessels placed into service prior to exceeding 4300gpm
7
Q
Limits for manually removing and Backwashing Vessel
A
- Vessel dp - 22psid
- System dp - 53(50)
- As determined by SS
- Not balanced within <500gpm
- Low Demin efficiency (Chem)
