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Three-effect energy-saving condenser
1Purposes
Suitable for:concentration of liquefied materials in traditional
Chinese medicine,Western medicine,starch,foodstuff, chemical
industry,light industry etc.and can meet the requirements
of heat-sensitive materials.
2.Main technical parameters
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item
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SJN-500
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SJN-1000
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SJN-1500
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SJN-2000
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SJN-2500
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SJN-3000
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evaporating abilityKg/h
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400-500
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800-1000
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1200-1500
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1800-2000
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2200-2500
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2800-3000
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pressure of steamMpa
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0.05-0.15
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0.05-0.15
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0.05-0.15
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0.05-0.15
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0.05-0.15
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0.05-0.15
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eavaporating
temperature℃
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one-effect
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80-90
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80-90
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80-90
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80-90
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80-90
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80-90
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two-effect
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70-80
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70-80
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70-80
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70-80
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70-80
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70-80
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three- effect
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60-70
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60-70
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60-70
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60-70
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60-70
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60-70
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Degree of vacuum(Mpa)
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one-effect
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0.02-0.04
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0.02-0.04
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0.02-0.04
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0.02-0.04
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0.02-0.04
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0.02-0.04
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two-effect
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0.04-0.06
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0.04-0.06
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0.04-0.06
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0.04-0.06
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0.04-0.06
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0.04-0.06
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three- effect
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0.07-0.08
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0.07-0.08
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0.07-0.08
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0.07-0.08
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0.07-0.08
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0.07-0.08
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concentration
specific gravity.
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1.35
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1.35
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1.35
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1.35
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1.35
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1.35
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steam-consuming
volumeKg/h
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230
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360
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600
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800
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1000
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1250
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circulation volume
of water T/h
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5
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8
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15
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20
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25
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30
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steam inletΦ
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32
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45
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57
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76
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89
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108
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vacuum inletΦ
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80
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108
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150
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219
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259
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259
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temperature of
circular water℃
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<40
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<40
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<40
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<40
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<40
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<40
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3.Structure and performance
It consists of one-effect heating room and evaperating room,two-effect
heating room,evaporating room,three-effct heating room and evaporating
room,water-acceptor,cooler etc.and is made of good stainless
steel materials..
heating room.:Its inner is shell and tube type with bilayer
thermal insulation.Nozzle bends are connected with evaporating
room and the upper cover with hole is used for cleaning.Steam
pressure meter and safety valve are 加热installed
in one-effect heating room..
.Evaporating
room: one-effect ,two-effect and three-effect evaporating rooms
are in bilayer structure with thermal insulation.The mirror
on the front of it is for observing and hole on top of it is
for cleaning when changing variety.Besides, there are vacuum
meter and temperature meter..
Water acceptor：It is below evaporating room.The remaining steam
and condensed water from heating room are separated in separator.
Steam enters three-effect heating room through the upper pipe
or is pumped into cooler and cooling water is drained termly
through the lower pipes.
Cooler：It is double shell and tube type.The lower water acceptor
is used to receive condensed water.
4. Operating theory
First steam (boiler steam)enters one-effect heating room to
heat material solution .Meantime, under actuating force of vacuum,
material solution is sprayed in to evaporating room through
spray pipe and returns to heating room through bended channel
again.After being heated, it is sprayed into evaporating room.Thus
, a circulation forms;water in material solution is evaporated
soon in evaporating room and the second steam enters two-effect
material solution, thus, the second circulation forms.In the
same theory ,the third circulation forms.In this way, water
in material solution is evaporated gradually and the concentration
improves.The temperature of cooling water rises to 30℃－40℃ through
cooler.
5.Installation of equipments
1、construct according to mounting drawing
2、Concrete structure with No.100－120 base.
3、Since the process pipes have great influence on the performance
of equipement,size,dimension,angle and position of pipes can
not be changed during installation.
6、Running and operation of equipments
1、Open vacuum equipment and valve:(21、19、16) ,keep the rest
valves closed and adjust pressure of one-effect,two-effect and
three-effect vacuum meters within stated range.Open feed valve
2.Material solution first enters one-effect,and when Material
solution reaches below 10cm of steam-liquid spray opening of
evaporator,close valve 2.Open valve 1 and 3,supply steam to
heat and meantime open valve (8.9),then open valve 5.When material
solution reaches below 10cm of steam-liquid spray opening of
two-effect evaporator,close valve 5,open valve 12 and meantime
open valve(14.20).When material solution reaches below 10cm
of steam-liquid spray opening of three-effect evaporator,close
valve 12,open valve of cooling water 12 and valve (24.26).
2、Feed discontinuously according to evaporating speed of each
effect.
3、Drainage:When water line in water acceptor of two-effect
rises to 1/2 of mirror,close valve (8、9),open valve 6 to destroy
vacuum.Then open valve 10.
4、When water line in water acceptor of two-effect rises to
1/2 of mirror,close valve(14、20),open valve 17 to destroy vacuum.Then
open valve 13.
5、When water line in water acceptor and cooler rises to 1/2
of mirror,close valve (24、26),open valve 25 to destroy vacuum.Then
open valve 27.
6、Collecting cream:Since the evaporating temperature of one-effct
is high and concentration speed is rapid,when it reaches the
expected specific gravity,open valve (2、12、4) and close valve16
to push conentration solution in one-effct into two-effct.Close
valve 12,open feed valve and close valve 2.When conentration
solution in two-effct reaches the expected specific gravity,
open valve(5、12、7)and close valve 21 to push conentration solution
in two-effct into three-effct.Close valve 12,open feed valve.When
material solution in two-effect returns to the original level,close
feed valve and valve 5 and meantime open vacuum valve
7、When conentration solution in three-effct reaches the expected
specific gravity,close valve 19,open valve 18 to destroy vacuum
.Then open valve 12.
To keep the inside of one-effct heating pipe clean, use water
to clean it for about ten minutes after use each time.
7.Cleaning of equipments
1、When producing same products, normal evaporating pressure
of one-effect heater is0.09MPa-0.15MPa.If evaporating pressure
rises obviously, cream materials will attach to pipe wall and
form medicine dirt.Solution: open the hole cover of one-effect
heating,use rounding steel brushes to brush medicine dirt,then
can recover production.CLean one-effect every eleven days and
clean two-effect and three-effect every three months.
2、Variety-changing cleaning：Boil 10％ caustic soda for half
an hour and then use it to brush the inside of equipments.
8、Features and benefits
1、.Since outer heating circulation is adopted for this equipment,
its heating time is short.It is suitable for production of heat-sensitive
and various kinds of materials.It has special structure and
materials are not easy to produce foam. Even if foam is produced
, they can be eliminated forcely.
2、Large capability of evaporating and rapid speed. Compared
with State Approved Concentrating Pot, its evaporating capability
is above four times while energy-consumption is more than fourty
percent lower .
3、Energ-saving benefits:According to SJN－1000 calculation,
it can save steam 5200tons annually, electricity 110 thousand
degrees and water 130 thousand tons, a total of RMB 200, 000
-300,000yuan.
4、Large specific gravity of concentration：Its specific gravity
of concentration can reach 1.35,thus simplifies process and
shortens concentration time.Materials can be completely treated
each day ,so it can reduce pollution,improve rate of cream return
and guarantee quality of medicine products.
5、Improve working conditions;normal running,stable production,convenient
cleaning and one-person operation.
6This equipment is all made of stainless steel.Condenser water
from one-effect heating room can be used as distilled water.
9、Common failure and elimination
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Failure
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causes
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elimination
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insufficient
vaccum
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insufficient pressure
of cooling water and too small water-inlet pipe
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Increase volume of
cooling water and enlarge water-inlet pipe.
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There are air bubbles in
liquid ,steam is not stable and insufficient vacuum. |
discontinuously open one-effect
valve (4),and open two-effct valve (16)and three-effect
valve largely. |
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