Stainless
Steel
Multi-Effect
Evaporator
System
The
Stainless
Steel
Multi-Effect
Evaporator
(MEE)
from
Hanpu
is
designed
for
energy-efficient
concentration
and
salt
crystallization
across
chemical,
food,
pharma,
and
wastewater
applications.
Built
in
SS304
/
SS316L
with
optional
Duplex
2205/2507
or
Titanium
for
harsh
brines,
it
delivers
reliable
performance,
clean
condensate
recovery,
and
automated
operation.
Durable,
Hygienic
Construction
All
product-wetted
parts
in
stainless
steel
with
sanitary,
mirror-polished
tubes
minimize
fouling
and
simplify
CIP.
High
Steam
Economy
Cascaded
effects
reuse
latent
heat.
Typical
performance:
1
kg
steam
evaporates
3.5–4.0
kg
water
(TVR/MVR
options
for
further
savings).
Stable,
Automated
Quality
PLC/HMI
control
with
density/vacuum/flow
feedback
ensures
consistent
concentration,
crystal
size,
and
throughput.
Process
Overview
—
Falling-Film
Multi-Effect
with
Vacuum
Crystallization
-
Feed
&
Preheat:
Raw
liquor
is
metered
to
the
1st-effect
heater
via
preheaters.
-
Effect
1
→
Effect
2
→
Effect
3:
Live
steam
heats
Effect
1;
its
vapor
heats
Effect
2;
Effect
2
vapor
heats
Effect
3
under
reduced
pressure
and
temperature.
-
Concentration
Control:
Online
density/conductivity
triggers
discharge
or
recycle
to
meet
targets.
-
Vacuum
Crystallization
(optional):
Concentrate
flashes/boils
under
vacuum
to
form
crystals
(e.g.,
NaCl);
solids
separated
via
centrifuge
or
filter.
-
Condensation
&
Utilities:
Final
vapor
condenses
in
the
condenser;
clean
condensate
recovered;
non-condensables
removed
by
vacuum
pump.
System
Structure
Multi-effect
heaters
&
separators,
preheaters,
condenser
&
vacuum
set,
feed/circulation/discharge/condensate
pumps,
crystallizer
(optional)
and
centrifuge,
CIP
skid,
instrumentation
(T/P/level/flow/vacuum/conductivity),
and
PLC/HMI
historian.
Typical
Specifications
—
Triple-Effect
Falling-Film
(Illustrative)
|
Parameter
|
Unit
|
Value
(Example)
|
|
Evaporation
capacity
|
kg/h
|
3,000
–
50,000
|
|
Raw
steam
consumption
|
kg/h
|
~900
@
3,000
kg/h
duty
|
|
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
(Duplex
2205/2507
or
Ti
on
request)
|
|
Tube
finish
|
—
|
Seamless,
mirror-polished
sanitary
tubes
to
reduce
scaling
|
|
Automation
|
—
|
PLC/HMI,
recipes,
interlocks,
alarms,
data
logging
|
Applications
-
Industrial
Effluents
&
ZLD:
High-salinity
wastewater,
RO
reject,
landfill
leachate.
-
Salts
&
Inorganics:
NaCl,
Na2HPO4,
Na2SO4,
and
other
crystallizable
salts.
-
Food
&
Pharma:
Hygienic
concentration
with
short
residence
time
and
easy
CIP.
-
Chemicals:
Product
concentration
and
solvent/water
recovery.
Delivery
Workflow
Feed
&
targets
→
Bench/pilot
(optional)
→
Process
&
heat
balance
→
Detailed
engineering
&
fabrication
→
Installation
&
commissioning
→
Performance
test
&
training
→
O&M
support
with
spares.
About
Hanpu
Hanpu
is
a
professional
EPC
supplier
of
energy-saving
multi-effect
and
MVR
evaporation
systems
in
China.
We
focus
on
stainless
steel
process
equipment
built
for
durability,
compliance,
and
predictable
payback.
From
feasibility
and
investment
analysis
to
long-term
operations,
we
deliver
safe,
stable,
and
efficient
plants.
