Runxin F68Q3 - Parameter settlement; Service Time T1; Backwash Time T2; Brine & Slow Rinse Time T3

MODEL：F67Q/F71Q/F68Q/F69Q/F116Q/F117Q
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3.4 Parameter settlement
① Service Time T1
Water Treatment Capacity:
Q=V
R
×K÷Y
D
(m
3
)
Hardness of Inlet Water, mmol/L.
Exchange factor, mmol/L, 400～1000.
Down-flow regeneration, take 400～
750; Up-flow regeneration, take
450 ～ 1000. If the inlet water
hardness is higher, the factor is
smaller.
Resin volume, m
3
.
By hours：T1=Q÷Q
h
(Hour)
Average water consumption per hour (m
3
/h)
Water treatment capacity (m
3
)
By days: T1=Q÷Q
d
(Day)
Average water consumption per day (m
3
/d)
Water treatment capacity (m
3
)
② Backwash Time T2
Generally, it is suggested to set 10～15 minutes. The higher the
turbidity is, the longer backwash time shall be set. However, if the
turbidity is more than 5FTU, it is better to install a filter in front of the
exchanger.
③ Brine & Slow Rinse Time T3
T3=(40～50)×H
R
(min)
Generally, T3=45H
R
(min)
In this formula，H
R
——The hight of the resin in the exchange tank (m)
④ Brine Tank Refill Time T4
Down flow regeneration：T4＝0.45×V
R
÷Brine refill speed
Up flow regeneration：T4＝0.34×V
R
÷Brine refill speed