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Graphite
modified polypropylene film-type absorber series
It is a new kind of absorber in domestic. It is a wetted-wall
surface absorber installation. It is suitable for the absorber
of the easy corrosive gas (eg. HCL, SO2 and so on), which is
concomitant with heat. When the operation is beginning, the
absorbent, which is on the film state, drops in the
uprightness line-pipe through the coating machine. The gas,
which is current flow or adverse current flow, passes the
space of the inside pipe. The gas and liquid mass transfer on
the flowing liquid film. The refrigerant gets rid of the heat,
which is produced in the process of the absorber, outside of
the line-pipe. It is widely used to replace the graphite
film-type absorber because of its performances.
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entrance
of refrigerant water
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Equipment
technical performance:
1、Temperature: -10~125℃. Reducing the temperature of the
absorbent in order to improve the absorber efficiency.
2、Pressure: shell pass and tube pass
should be less than 0.3Mpa (list)
3、Vacuum: shell pass and tube pass should
be less than -0.1Mpa
4、The dosage of the absorbent: according
to the concn of the HCL, general is 10~20m3/h (10m2 absorber)
5、Use level of the water is according to
the operation craft condition. It is helpfully to improve the
absorbed efficiency with improving the use level of the water.
Applied
range:
Applying in the absorption of compositive hydrochloric acid
and catching hydrochloric acid. It's also used in absorption
H2、S、SO2、NH3 and so on. The received products' concn is
over 5% than the adiabatic absorption. Adopting two-grade
series and cycled absorption, the efficiency can be reached
more than 98%. The absorbent ability: the production ability
of the absorber can be adjusted in big range: the operation is
very convenient, for instance, the series usage of two 10m2
film-type absorber can produce HCL about 10~20 tons every day.
The concn is 31%.
Operation:
The operation of absorbent and absorbed gas is current flow or
reverse current. When the operation is reverse current flow,
the anabatic liquid make the liquid film become thick and the
velocity of flow reduce. It will produce floating phenomenon
when the velocity of low of the gas reach 5~10m/s inside the
pipe. When the operation is current flow, the degressive
liquid make the liquid film become thin and the velocity of
flow increase. In the condition of same gas velocity of flow,
the liquid resistance of current flow is smaller than reverse
current flow. The gas speed of current flow can be 15~30m/s,
but the absorption impetus is smaller than reverse current
flow. Now mainly adopting the operation of current flow in the
production.
Physics
mechanical performance chart:
graphite
modified polypropylen
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pure polypropylen
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performance
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datas
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performance
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datas
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proportion
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1.1
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proportion
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0.93
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operate
temperature ℃
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-10～125
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operate
temperature ℃
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-10～130
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inflatable
coefficient of the line×10-5/℃
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5.7～12
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inflatable
coefficient of the line×70-5/℃
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6～13
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intension
of clash-resist Kgcm/cm2
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6.44
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intension
of clash-resist Kgcm/cm2
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≥15
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intension
of drag-resist Kg/cm2
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230
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intension
of drag-resist Kg/cm2
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≥300
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intension
of welded drag-resistKg/cm2
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123
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intension
of welded drag-resist Kg/cm2
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165
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heat
conduction coefficient therm/m、h、degree
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2.6
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heat
conduction coefficient therm/m、h、degree
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operate
pressure
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MPa
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≤0.3
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operate
pressure
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MPa
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≤0.3
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vacuum
MPa
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-0.1
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vacuumMPa
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-0.1
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leave
factory's hydraulic pressure MPa
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0.4
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leave
factory's hydraulic pressure MPa MPa
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0.4
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Falling-film
absorber series specification contrast chart:
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absorption area
m2
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absorption
line
pipe
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size of outline
mm
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size
of insta
llat
ion mm
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ref
rig-
erant
ent
ra-
nce
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fini
sh
ed pro-
duct
exit
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tipp-
ing tip
per exit
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nomi-
nal area
m2
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act-
ual area m2
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amout of
pipe (piec
e)
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speci-
ficat
ion
(mm)
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φ1
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L
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H
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H1
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φ2
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a
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b
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c
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d
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e
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f
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g
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6
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6.02
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66
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φ20×
1.7
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310
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1750
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2630
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580
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545
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80
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50
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40
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40
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70
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70
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50
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10
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10.15
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66
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φ20×
1.7
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310
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2950
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4830
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980
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545
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80
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50
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40
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40
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70
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70
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50
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15
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15.14
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66
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φ20×
1.7
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310
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4400
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5280
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1460
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545
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100
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70
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50
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50
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80
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80
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70
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15
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15.18
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104
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φ20×
1.7
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400
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2800
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3680
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930
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645
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100
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70
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50
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50
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80
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80
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70
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20
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20.64
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132
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φ20×
1.7
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400
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3000
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3880
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1000
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645
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100
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70
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50
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50
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80
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80
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70
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25
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2511
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132
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φ20×
1.7
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400
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3650
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4530
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1220
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645
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100
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70
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50
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50
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80
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80
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70
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30
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30
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192
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φ20×
1.7
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500
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3000
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3940
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1000
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775
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100
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80
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70
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70
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80
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80
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80
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40
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40.05
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226
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φ20×
1.7
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500
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3400
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4340
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1140
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775
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100
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80
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70
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70
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80
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80
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80
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50
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50.65
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226
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φ20×
1.7
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500
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4300
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5240
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1430
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775
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100
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80
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70
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70
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80
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80
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80
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60
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60.57
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298
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φ20×
1.7
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630
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3900
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4850
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1300
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880
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150
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80
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80
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80
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125
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125
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100
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80
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80.76
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298
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φ20×
1.7
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630
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5200
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6150
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1400
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880
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150
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80
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80
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80
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125
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125
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100
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100
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101.15
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588
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φ20×
1.7
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800
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3300
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4300
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1100
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1050
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200
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100
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100
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100
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150
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150
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125
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