Energy
Saving
Multiple
Effect
Evaporation
System
Hanpu’s
Multiple
Effect
Evaporation
(MEE)
line
delivers
high
steam
economy,
stable
production,
and
consistent
product
quality
for
chemical
brines,
effluent
treatment,
and
salt/alkali
applications.
By
cascading
effects
under
vacuum,
secondary
vapor
from
one
effect
heats
the
next,
cutting
fresh-steam
demand
and
total
OPEX.
Optional
TVR/MVR
modules
further
enhance
energy
performance.
Steam
Economy
&
Low
Utility
Cost
3–5
effects
reuse
latent
heat
across
stages;
typical
steam
consumption
reduced
to
~30–40%
of
a
single-effect
unit.
TVR/MVR
options
push
savings
further.
Gentle,
Clean,
Reliable
Vacuum
operation
and
short
residence
time
protect
heat-sensitive
materials.
Mirror-polished
tubes
reduce
scaling
and
simplify
CIP.
Automation
&
Consistency
PLC/HMI
with
recipe
control,
historian,
and
interlocks
(vacuum/level/temperature).
Inline
density/conductivity
options
for
tighter
endpoints.
How
the
Energy-Saving
Cascade
Works
-
Feed
&
Preheat:
Metered
feed
enters
the
preheater
and
first-effect
heater.
-
Effect
1:
Live
steam
heats
the
first
effect;
generated
vapor
becomes
the
heating
medium
for
Effect
2.
-
Effects
2–N:
Each
subsequent
effect
runs
at
lower
pressure/temperature,
using
the
previous
effect’s
vapor
for
boiling.
-
Condensation
&
Recovery:
Final
vapors
condense
in
the
condenser;
clean
condensate
can
be
reused.
Non-condensables
are
removed
by
the
vacuum
set.
-
Crystallization
(Optional):
Concentrated
liquor
flashes
or
routes
to
a
vacuum
crystallizer
for
salt
recovery;
mother
liquor
recycles
to
boost
yield.
System
Structure
Effects
(heaters
&
separators),
preheaters,
condenser
&
vacuum
system,
feed/circulation/discharge/condensate
pumps,
optional
crystallizer
&
centrifuge,
CIP
skid,
and
full
instrumentation
(T/P/level/flow/vacuum/conductivity).
Typical
Three-Effect
Falling-Film
—
Illustrative
Specifications
|
Parameter
|
Unit
|
Value
(Example)
|
|
Evaporation
capacity
|
kg/h
|
3,000
–
50,000
|
|
Raw
steam
consumption
|
kg/h
|
~900
@
3,000
kg/h
duty
(≈30%
of
single-effect)
|
|
Evaporation
temperature
(1st
/
2nd
/
3rd)
|
°C
|
≈99
/
76
/
53
(vacuum)
|
|
Steam
pressure
(1st
effect)
|
MPa
(abs)
|
0.6
–
1.0
|
|
Materials
of
construction
|
—
|
SS304
/
SS316L
(others
on
request)
|
|
Automation
|
—
|
PLC/HMI,
recipe
control,
historian,
safety
interlocks
|
Applications
-
Effluent
Treatment
&
ZLD:
Concentrate
high-salinity
brines;
recover
reusable
water.
-
Inorganic
Salts:
NaCl/Na2SO4/Na2HPO4
concentration
and
crystallization.
-
Chemicals
&
Pharma:
Solvent/water
removal
with
tight
endpoints
and
clean
operation.
-
Food
&
Beverage:
Gentle
low-temperature
concentration
for
quality
retention.
Delivery
Workflow
Feed
&
targets
→
Lab/pilot
(optional)
→
Process
&
heat
balance
→
Detailed
engineering
&
fabrication
→
Installation
&
commissioning
→
Performance
test
&
training
→
O&M
support.
About
Hanpu
Hanpu
provides
EPC
solutions
for
evaporation
and
crystallization
with
a
focus
on
energy-saving
MEE
systems.
Our
team
supports
you
from
early
feasibility
and
investment
analysis
to
long-term
operations,
ensuring
safety,
quality,
and
predictable
payback.
