lAfXJTER PLATE HEAT EXCHANGER HYUNDAI HEAVY

H E A T
E X C H A N G E R S
H E A T
E X C H A N G E R S
IMO 9298686
HHI 1630
lAfXJTER
A ^ POWER) COMPANY
PLATE HEAT EXCHANGER
HYUNDAI HEAVY INDUSTRIES
HULL No.: 1630
P.O. No.: CE630-31N5523
Final Drawings
2005-10-31
Supplier;
SEC. NO. SHIP DESIGN OFFICE
C3D5
SHIP OUTFITTING DESIGN DEPT 2
SHIP TYPE
4,150 TEU CLASS CONTAINER CARRIER
TEL NO.
3708
1630
SHIP NAME
MAERSK GREENOCK (IMO 9298686)
APPROVED
Y. S. HAN
NAME OF DRAWING
CHECKED
Y. S. KIM
SHIP NO.
PLATE COOLERS FOR HEAT EXCHANGERS
DRAWN
DATE
Z\
2005.10.13
HYUNDAI HEAVY INDUSTRIES CO..LTD
ULSAN SHIPYARD, KOREA
SCALE
DRAWING NO.
/
CONSOLIDATED NO.
6U-2817-015
IM-11-C
ffij-EAT
E X C H A N G E R S
Ja.
H E A T
E X C H A N G E R S
A ^DmitB^ COMPANY
PLATE HEAT EXCHANGER
HYUNDAI HEAVY INDUSTRIES
HULL No.: 1630
P.O. No.: CE630-31N5523
Final Drawings
2005-10-31
Supplier:
TRANTER PHE AB
Maria Skolgata 79B, SE-118 53 Stockholm, SWEDEN
Phone: +46 8 442 49 70, FAX: +46 8 442 49 80
TRANTER PHE AB
HEAD OFFICE
Box1325, Regementsgatan32
SE-462 28 Vänersborg
Phone. + 46 (0) 521 -27 78 00
Fax. + 46 (0) 521 -673 93
VAT. NO: SE 556559-176401
SALES & MARKETING OFFICE
Maria Skolgata 79B
SE-118 53 Stockholm
Phone. + 46 (0) 8 442 49 70
Fax. +46 (0) 8 442 49 80
Member of the Tranter Group
BANK: S-E Banken
SWIFT Address: ESSESESM
Account No: 5623-10 000 44
Bankgiro service: 5093-1658
1630-1631.1671
müRAMTER
A |3 DOWER) COMPANY
TRANTER PHE AB
SPECIFICATION FOR TRANTER'S PLATE HEAT EXCHANGER
Customer: Hyundai Heavy Industries Co Ltd
Hull 1630-1631, 1671
Application
Central F.W. Cooler
Main L.O. Cooler
Reefer F.W. Cooler
No. of units
2
1
2
GX-85N
GX-145N
GX-85N
415
597
207
375,8
910,4
186,6
T^pe
No. of Plates/unit
Heat Transfer Surface/unit
m^
IVIedia
Flowrate
m^/li
S.W.
S.W.
L.O.
F.W
F.W.
S.W
740
1100
685
405
780
780
Inlet Temperature
°C
58,6
32
58
36
40,7
32
Outlet Temperature
°C
36
47,7
45
46
36
37
kPa/kPa
40
80
60
9,0
83
80
Pressure Drop
Heat Transferred
Kcal/h
K-value
16 604 000
W/m^°C
LMTD
7 454
-C
3 671 001
4 018 001
5946
491
10,4
6,9
3,9
Max. Design Pressure
bar
6
6
6
6
6
6
Test Pressure
bar
9
9
9
9
6
6
110
110
110
110
110
110
Max. Design Temperature
°C
No. of Passages
1
1
1
No. of channels
1x207/1x207
1x298/1x298
1x103/1x103
Frame Material
P265GH
P265GH
P265GH
Plate Material
Titanium
AISI 316
Titanium
Gasket Material
NBR(S)
NBR(S)
NBR(S)
15%
15%
15%
3-11784
3-11618
3-11615-16
101886-88/1-2
101886-88/1-2
101886-88/1-2
Fouling Factor
Drawing No
Manufacturing No
Rule
LR
Colour
SI Munsell10GY8/4
Remarks: Working drawings
TRANTER PHE AB, Marine & Engine department
MariaSkolgata79B, SE-118 53 Stockholm, Sweden
phone: +46 8 442 49 70
fax: +46 8 442 49 80
2005-10-31
1630-1631,1671
m^TRJKfMlZR
A i 3 DOVER ) COMPANY
TRANTER PHE AB
SPECIFICATION FOR TRANTER'S PLATE HEAT EXCHANGER
Customer: Hyundai Heavy Industries Co Ltd
Hull 1630-1631, 1671-1672, 1699-1701
Application
M/E T/C L.O Cooler
No. of units
1
T^pe
GX-42P
No. of Plates/unit
49
Heat Transfer Surface/unit
m^
20,68
Media
Flowrate
m^/ti
L.O
F.W
19
40
Inlet Temperature
°C
88,4
36
Outlet Temperature
°C
45
57,1
kPa
50
44,3
Pressure Drop
Heat Transferred
kcal/h
K-value
328 520
W/m^°C
703
°C
26,3
LMTD
IVIax. Design Pressure
bar
6
6
Test Pressure
bar
6
6
110
110
Max. Design Temperature
°C
No. of Passages
1
No. of channels
1x24/1x24
Frame Material
P265GH
Plate Material
AISI 316
Gasket Material
NBR(P]
Fouling Factor
15%
Drawing No
3-11617
Manufacturing No
101886-88/1-2
LR
Rule
Colour
81 Munsell10GY8/4
Remarks: Working drawings
TRANTER PHE AB, Marine & Engine department
IVIaria Skolgata 79B, S-118 53 Stockholm, Sweden
tfn: +46 8 442 49 70
fax:+46 8 442 49 80
2005-10-31
Client:
2 )
Cold in/out
Hot in/out
Hyundai Heavy Industries Co., Ltd
P.O. No: CE630-31N5523, CE671N5523
Location
Hull:
Media
1630-1631. 1671
Sway brazing lug ø27 I2x)
NOT for lifting purposes
qi
PHE Performance
Customer Information
Lifting lug 050
S1/S3
S2/S4
Fresh water
Sea water
Conn. Standard
Conn. Size
JIS5K
JIS5K
300A
300A
Conn. Material
CS.
Titanium
Design/Test Pressure
6/9.5 bar
Design Temp.
IIO'C
Weight empty/flooded
3336/^705 kg
General Information
X This is a customer adapted drawing which is drawn in accordance with
the type approved drawing 3-3'»6
X LR Approval No: PPD33656
X Installation/maintenance:
The heat exchanger must be installed with min 800 mm clearance on
one side
X Production adapted partlist No: t-12037
PAINT
2005-01-2/. AR
Issued for Working
2005-01-2^. AR
Issued for Final
2005-10-25 HB
SI MUNSELL 10 GY 8/4
PAINTING INSTRUCTION
55
5^
53
52
51
50
» Notel
Filter maintenance:
Remove flange
Pull out filter
Issued for Approval
PORT LINING
TITANIUM
S2. S/., M2
SHIMS 85x70
T = 2./».6.10
VIBRATION STAY
CS.
CS.
CS.
BLIND FLANGE
P265GH
IN LINE STRAINER
AISI 316
M2
M2
VIBRATION SUPPORT
k<i
U8
TUBE
Cu d=8/6
SI, Si.
BALL VALVE
S2, S3
kl
BALL VALVE W 90° CONN
DZB
DZB
US 2/2
UU
U3
THERMOMETER 0*120''C RX991BL
DZB/1.4401
S1,S3/S2,S/.
PRESSURE GAUGE 0-6 bar/psi RX2010 6 o'clock
PRESSURE GAUGE 0-6 bar/psi RX201Q 12 o'clock
CONNECTIONS:
C-K1
Min 30
.if
ilif 1
m
S1,S3/S2,S/.
FZB
S1,S3
36:1
STUDBOLT & NUTS M20xL=150
AU
S2.Si.
30
FLOOR SUPPORT
28
18
15
10
STRAP IRON
CS.
CS.
L80x80x12x60
m'A.
2U
U%
MACHINE PLATE
TYPE: 01A
PLATE GASKET HALF THICKNESS
NBR (S)
PLATE GASKET FULL THICKNESS
NBR IS)
TIGHTENING BOLT WPVC-TUBE FZB
M39xL=3000
REINF UP GUID BAR W SWAY BRACING
8,8
8,8
CS.
LOWER GUIDING BAR
CS.
L=3000
HEAT TRANSFER PLATE
TITANIUM
^
^
(Excl. gaskets)
u:s
t=0,5
MOVABLE COVER WITH CONN M2
P265GH
300A
FIXED COVER WITH CONN Sl-i»
P265GH
300A
Pos Qty Description
View
Scale
General assembly drawing
PHE/GX-85N
50
7T
L=3000
Material
ASSEMBLY DRAWING
Dimension
Filename
Replaces
3-1178Vdwg
Drawn
AjHAaJTER
M39xL=1950
1:20
ISO 2768-c
@
(fill I8x)
(Bolts not supplied)
X 0301.5 excl lining in S2, SU
General tolerances/standard
SI, Si.
CS./BRONZE
TIGHTENING BOLT WPVC-TUBE FZB
ON
S2, S3
2/2 INSTRUMENT CONN W FLANGE GASKET
36:2 2/, STUDBOLT & NUTS M20xL=130
i»2
FOUNDATIONS:
SI, Si.
AR
W
Date
Appr
2005 •01-21
oaie
CENTRAL F.W.COOLER
Drawing no
Mfg No: 101886-88/1
3-11784
AP
Project
J
Revision
zU
Customer Information
Client:
2 ]
PHE Performance
^
Cold in/out
Hot in/out
Hyundai Heavy Industries Co., Ltd
P.O. No: CE630-31N5523, CE671N5523
Location
Hull:
Media
1630-1631. 1671
Sway brazing lug ø27 (2x)
NOT for lifting purposes
S/f/S2
S3/S1
Fresh water
Sea water
Conn. Standard
JIS5K
JIS5K
Conn. Size
300A
300A
Titanium
CS.
Conn. Material
Design/Test Pressure
6/9.5 bar
IIO'C
Design Temp.
Weight empty/flooded
3336/^705 kg
General Information
X This is a customer adapted drawing which is drawn in accordance with
the type approved drawing 3-3't6
X LR Approval No: PPD33656
X Installation/maintenance:
The heat exchanger must be installed with min 800 mm clearance on
one side
X Production adapted partlist No: 'f-12037
Issued for Approval
2005-01-2^ AR
Issued for Working
2005-01-2it AR
Issued for Final
2005-10-26 HB
PAINTING INSTRUCTION
SI MUNSELL 10 GY 8/^.
PORT LINING
TITANIUM
SI. S3, M3
SHIMS 85x70
T=2,/t,6,10
VIBRATION STAY
CS.
CS.
CS.
BLIND FLANGE
P265GH
INLINE STRAINER
AISI 316
M3
M3
TUBE
Cu d=8/6
SI, Sif
BALL VALVE
DZB
S2, S3
BALL VALVE W 90° CONN
DZB
s^.su
THERMOMETER 0+120''C RX991BL
DZB/l./^ifOI
S2.S/./S1,S3
VIBRATION SUPPORT
tt Note 1
Filter maintenance
Remove flange
Pull out filter
FOUNDATIONS:
S2. S3
PRESSURE GAUGE 0-6 bar/psi RX201Q 12 o'clock
SI, SA
INSTRUMENT CONN W FLANGE GASKET
CS./BRONZE
S2.SA/S1,S3
STUDBOLT i. NUTS M20xL=130
FZB
S2.SA
STUDBOLT & NUTS M20xL=150
S1,S3
STRAP IRON
AA
CS.
CS.
MACHINE PLATE
TYPE: 01A
PLATE GASKET HALF THICKNESS
NBR (S)
PLATE GASKET FULL THICKNESS
NBR (S)
TIGHTENING BOLT W PVC-TUBE FZB
M39xL=3000
LOWER GUIDING BAR
8,8
8.8
CS.
CS.
HEAT TRANSFER PLATE
TITANIUM
t=0,5
MOVABLE COVER WITH CONN M3
P265GH
300A
FIXED COVER WITH CONN S l - t
P265GH
300A
Description
Material
Dimension
CONNECTIONS
C-1/>1
PRESSURE GAUGE 0-6 bar/psi RX2010 6 o'clock
FLOOR SUPPORT
i!
TIGHTENING BOLT W PVC-TUBE FZB
REINF UP GUID BAR W SWAY BRACING
« s o _
General assembly drawing
u
M39xL=1950
L=3000
L=3000
Filename
Replaces
11785dwg
Drawn
PHE/GX-85N
L
L80x80x12x60
AR
Rev. by
Date
2005-01-24
Hev date
027 IBx)
ASSEMBLY DRAWING
(Bolts not supplied)
CENTRAL F.W. COOLER
Drawing no
Mfg No: 101886-88/2
3-11785
^
^
/ \
HB
2005-10-26
Appr
ML
Project
J
Revision
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Page: 1
Spare Parts List
Huyndai Heavy Industries Co
Our Order: 101886-88
Your Hull: 1630-1631,1671
No
2005-10-31
Name/Use
kTRAMTER
A ^DOirm) COMRANY
Supply
Work Spare Drawing Remarks
ing
per
per
ship
ship
Plate:
Plate:
415
3-179
t=0.5
Titanium
Gasket:
Nitrile(S)
Material
Sketch
Heat transfer plate
GX-85N w. gasket/
Central F.W. Coler
Mfg 101886/1-2
Plate:
597
AISI316
Gasket:
Nitrile(S)
3-179
Plate:
t=0.5
207
Plate:
Titanium
Gasket
Nitrile(S)
3-179
Plate:
t=0.5
Plate:
49
AISI316
Gasket:
Nitrile(P)
3-225
Plate:
t=0.5
T T\
Nitrile(s) 414
0-052
Full
thickness
r
Nitrile(s) 596
0-052
Full
thickness
Nitrile(s) 206
0-052
Full
thickness
Nitrile(p) 48
1-099
Full
thickness
Heat transfer plate
GX-145N w. gasket/
Main L.O. Cooler
MfgNo:101886/3
Heat transfer plate
GX-85N w. gasket/
Reefer F.W. Cooler
MfgNo:101886/4-5
Heat transfer plate
GX-42P w.gasket/
M/E T/C L.O. Cooler
Mfg No. 101886/6
ÅSSS:
Gasket GX-85
Central F.W. Cooler
—\
J
MfgNo:101886/l-2
Gasket GX-145
Main L.O. Cooler
rttT
1
—+ -
MfgNo:101886/3
4-
Gasket GX-85
Reefer F.W Cooler
I
^
— + •
Mfg No: 101886/4-5
Gasket GX-42P
M/E T/C L.O Cooler
^n?—I—T--H
J^
MfgNo:101886/6
Manufacturers
Name & Address
U
TRANTER PHE AB
Maria Skolgata 79B, 118 53 STOCKHOLM, SWEDEN
S
Int.+46 8 442 49 70
Fax:+46 8 442 49 80
Page: 1
TOOL List
Hyundai Heavy Industries
Our Order. 101886/1-6
Hull: 1630
Final Drawings
2005-10-31
A |3 DOVER^ COMNUVY
Supply
No Name/Use
No
Sketch
Working
per ship
Spare
per
ship
Article Remarks
no
SPANNER
M20
SPANNER
M39
760
Manufacturer's
Name & Address
TRANTER PHE AB
Maria Skolgata 79B, SE-118 53 STOCKHOLM, SWEDEN
® Int.+46 8 442 49 70
Fax:+46 8 442 49 80
<^.m
i ' E Ai ^f
g ^ ©
MÄW;^ E R S
H E A T
E x4eÄ^>
N G E R s J
.-.--lul-i > Ï S » - / .
5.4.1 Insetting the plates
Every dehvery can, if requested, be accompanied by a computer printout of
the grouping scheme, giving each plate's code letter together with the plate's
position in the heat exchanger. Make certain that the plate pack is assembled
correcdy. The plate edges shall form a regidar honeycomb pattern.
Correct
Model
Thickness
A-dimension
GXD-007
0.5 mm
3.0 X number of plates
GXD-026/042
0.4 mm
3.7 X number of plates
GXD-051
0.5 mm
3.8 X niunber of plates
0X0-064,091,118
0.5 mm
3.4 X number of plates
GXD-060,100,140, 180
0.5 mm
3.8 X nimiber of plates
GXD-085,145,205, 265,325
0.5 mm
3.8 X number of plates
Example:
A plate heat exchanger GXO-026 has a total of 51 plates in the pack. The
tightening length, A-dimension, of the pack is:
51 X 3.7 = 188.7 ± 3%.
Incorrect
'f
i
^ © M Ä
lE R S
H E A T
E X*e.3!HiP'Ä N G E
i.
kTRAWnZR
A {a D o w n ) COMPANY
GXD
Manual
• Installation
• Operation
• Maintenance
Figure 9. Correct vs. incorrect pattern of plate pack
When the plates are correcdy positioned the flanged cut-outs at the upper
carrying bar should point towards each other.
Plate Pack
•
•
•
•
Flanged cut-outs
Cover Plate
NOTE:
With large plate packs the A-dimension, due to tolerances in the plate thickness
and depth of pressing, can deviate somewhat from that given above, ±3%.
With the correct A-dimension the plates lie in metallic contaa with each other.
Check this by examining the plate edges around the heat exchanger. Further
compression can deform the plates. The nuts must be tightened alternately.
The movable cover plate must always be moved parallel to the frame at all
times, and not drawn out of alignment.
Tighten bolts 2 alternately.
As the resistance increases also tighten bolts 3 and 4 always alternately.
Tighten bolts 1.
Check the A-dimension along the heat exchanger.
NOTE! NEVER TIGHTEN THE EXCHANGER WHILE IT IS UNDER
PRESSURE!
Figure 10. PHE shown from top view. The flanged cut-outs points
to each other.
5.4.2 Tightening the heat exchanger
The plate pack must be compressed to a specific thickness, the A-dimension.
The A-dimension ±3% gives the itiside length in millimeters between the fixed
cover plate and the movable cover plate.
J@
K
u
U
U
U
U
15-
Ig=
g
ig=
Between two plates of steel the heat transfer sur&ces, the heat exchanger plates,
are clamped with the aid of tightening bolts. The heat exchanger's construction
enables a plate heat exchanger to be easily opened for inspection and cleaning.
Each heat exchanger plate is ptessed in one piece, with no joints or welds. Each
plate has four holes punched out, one in each corner. MiUtipass heat exchangers
have special turning plates in which two of the holes axe lefr blank.
Rubber gaskets are glued in the gasket groove around the heat transfer sur&ce
and holes. The gaskets are supported on both sides by the corrugations in the
plate. The gaskets are double around the holes to prevent leakage between
the media. In the event of gasket failure the medium runs straight out of the
exchanger.
3. Installation
Tranter's plate heat exchangers are pressure tested at the factory before delivery.
When heat exchanger is installed it is necessary to provide enough clearance
around the PHE, see figure. This &ciUcates access to the PHE and permits
for necessary service tasks. The PHE must have a clearance on both sides.
Under special considerations for space, these diinensions may be reduced but
servicing the heat exchanger may be compromised.
GXD heat exchanger plates are made with two different arrowhead angles
— one obtuse giving a high-theta plate, and one acute giving a low-theta
plate. Between two adjacent plates a flow chaimel is formed with the aid of the
gaskets. The positioning of the gaskets produces a channel system through the
entire plate pack in which the two heat exchanging media flow. Liquid flows
diagonally across the GXO heat exchanger plates.
2. Main Components
II
4^
Ü
The PHE is in principle built up by a plate package of corrugated channel plates between fixed and movable covers. Figure below shows the main
components.
d-
a-
a
.0 O,
I.PLATE HEAT EXCHANGERS
GENERAL DESCRIPTION
•Q O'
1—EBi^^MitfB—i
Figure 12. Schematics of ti^tcning the PHE.
TTTTTTTTTTTTTTTTTT".
gl
i&=
g
A dimension
"*
»>
Figure 2, Clearence size needed for future maintenance.
5.4.3 Lubrication
The tightening bolts must be kept lubricated with molybdenum
disulphide or its equivalent, particularly on the sections of thread used
for opening and closing the equipment.
Model
Lenght(L)
6. ORDERING SPARE PARTS
GXD-007
300 mm
When ordering spare parts the heat exchanger type and serial number
must be quoted. These are given on the unit's name plate.
GXD-012,018,026,042
600 mm
GXD-051,064,085
1 000 mm
GXD-091, 118, 060, 100, 180, 145, 205
1 200 mm
GXD-265, 325
1 500 mm
Figure 11. A-dimension is the dimension between
the cover pUtres.
küRAmiER
A ^ D o w n ) COMPiUMY
Tranter PHE Aß, Maria Skolgata 79B, 118 53 Stockholm, Sweden. Tel. + 4 6 8 442 49 70. Fax +46 8 442 49 80. E-mail: infoiase.tranterphe.com
Figure 1. Main components
1. Fixed Cover Plate
2. Movable Cover Plate
3. Upper Guiding Bar
4. Lower Guiding Bar
5. End Support
6. Platepack
7. Tightening Bolt
8. Connection Port
H E A T
All connections to the heat exchanger must be provided with shut-off valves.
The lower connections {S2 and S3; M2 and M3 ) must be provided with drain
valves. The upper connections (S1 and S4; M1 and M4 ) must be provided with
venting devices at their highest points. The hot sides regulating valve should
be installed in the feed pipe between the pump and the shut-off valve.
5.1.1 Opening the heat exchanger
•
Ml
•
> 0 M2
•
•
•
Nlovabk
Cover
^
L^
vi
S3
S2
Figure 3. Denomination of connections.
All nozzle loading must be minimized during installation and operation. Make
sure that the pipe system connected to the PHE is secured against sudden
pressure surges and temperature fluctations.
C H: A
N G E R
•
•
,o o.
Make sure the unit is NOT under
pressure and is emptied.
Cool the heat exchanger. If possible
allow the heat exchanger to stand
and cool overnight.
Disconnect any connections to the
movable cover plate.
Note the current A dimension.
Remove bolts 1.
Loosen nuts 2 , 3 and 4 alternately, so
that the movable cover plate can
move parallel with the fiame plate.
Remove bolts 3 and 4.
Figure 5. Schematic of untighteLoosen nuts 2 alternately.
ning the PHE.
o O'
5.1.2 Taking out the piates
In case of welding, the PHE must not be used as a grouding mechanism as
electric arcs may occur between the heat transfer plates.
Use gloves, the plate edges are sharp! If two or more plates have stuck together
they must be separated carefully so that the gaskets are kept on the correct plate.
The plates support each other in pairs. If a plate has been damaged and if it
cannot be repaired or replaced with an identical one, the adjacent plate must
also be taken out of the exchanger.
All connecrions to the movable cover must be made using removable 90°
elbows, allowing the movable cover to be pushed back for servicing. In figure
4 you find correct and incorrect piping installation. The installation to the
left permits movement of end frame when connections ate disconnected.
If the number of plates are changed, so is the thickness of the clamped plate
pack, dimension A (see 5.4.2). Special plates, such as the fint and last plates,
and turning plates in multipass heat exchangers, must be replaced with idenncal
plates.
5.1.3 Cleaning the plates
Fouling of the plate heat exchanger is often caused by too low fluid velocity
through the heat exchanger. Where the possibility exists to increase the flow
this should be tried out if the heat exchanger shows signs of reduced capacity
or increased pressure drop.
Opening and cleaning the heat exchanger is necessary when products crystallise
or heavily foul the plates or if the heat transfer surfaces have been scorched.
Figiure 4. Correct and Incorrect piping installation.
•
•
4. OPERATION
•
Check that the operating data does not exceed that given on the heat exchanger's
nameplate. Check that all tightening bolts are properly tightened.
•
•
4.1 Pumps
Pumps feeding the heat exchanger must be provided with regulating valves.
If the pumps can deUver a higher pressure than the rated pressure for the heat
exchanger, safety valves must be installed. The pumps must not suck in air.
4.2 Start-up
To avoid pressure shock the pumps must be started against closed valves.
The valves in the inlet and outlet should be opened at the same time as &r as
possible. The flow rate is then increased slowly until operating temperature is
reached. Hammering must be avoided, otherwise the rubber gaskets may be
displaced and cause leakage.
4.3 Venting
Immediately after start-up the exchanger must be vented. Remaining air can
cause air locks and serious scorching of the plates, reducing the heat transfer
edacity and increasing che risk of corrosion.
4.4 Shut-down
Shut-down should take place slowly. For longer periods of downtime and
especially when there is a risk of freezing or if the medias are agressive, the
heat exchanger must be empded and cleaned. While the unit is not in use, ease
the tension on the tightening bolts so that the plates are leaning gainst each
other, but close enough to prevent any dirt entering between them.
•
S
•äSj
imfit
fï^'G
E R S
5.2.2 Suitable gasl<et glue
5. MAINTENANCE
•
KM
E X
The heat exchanger is opened according to 5.1.1.
Steel wool or brushes of carbon steel must not be used, nor may stainless
steel be used on dtanium plates.
In the first place the heat transfer siir^ice is cleaned by rinsit^ with a powerful
jet of water and scrubbing with a nylon or similar brush.
Take care not to d a n u ^ the gaskets.
Oxide or chalk deposits are removed with a soft brush and 2-5% nitric
acid soludon. (Hydrochlotic or sulphuric acid may not be used). Organic
deposits containing proteins are removed with a soft brush and 2% solution
of sodium hydroxide solution at 50''C.
Sur&ces with greasy deposits are cleaned with kerosene and a soft brush.
After cleaning, rinse thoroughly with water.
Only certain glues may be used for gluing gaskets, namely Bostik
1782, 3M EC 1099, Bond Spray 77 or Pliobond 20/30 Synthetic glue.
Do not use other types of glue, they may contain chlorine or other
substances which attack the plate nuterial. To facilitate application with
a brush, the glue should be diluted with acetone. Maximum dilution 1:1.
5.3 Plates
A GXD plate is identified by mearu of an embossed code letter. This letter can
be found to the RIGHT of the UPPER carrying bar cut-out, when the plate
is facing TOWARDS the frame plate.
5.2.3 Cleaning the gasl<et groove
Letter
5.2.4 Gluing the gaskets
The glue is applied with a small flat brush to those parts of the plate's gasket
groove in which the gasket shall lie. These parts of the gasket groove are easily
recognised as they difibr in colour arising &om previous residues of glue. The
gasket is then placed into position on the plate. After drying for about 30
seconds (the time depends on the thickness of the glue film and how much the
glue has been diluted), the glue holds the rubber gasket firmly in place in the
gasket groove, thus facilitating mounting. The plate must then be held undet
light pressure with the aid of other plates or a stiff sheet of other material of
suitable weight for about Vi hour.
When the glue joint has dtied the gasket should be coated with talc to prevent
the plates subsequently sticking to each other. The plates are then ready to
assemble into the frame.
It's very important to follow the gluing instructions on the plate specification
sheet. In figure 6 you see all possible gluing instruction for GXD. Each plate
is glued with one fiill thickness gasket on the front side, except the last plate,
which also has an additional half-thickness gasket on the back side. The first
plate is only gjucd with a half-thickness gasket on the front side.
H-plate
TO
s
^
^>^^
^^
5.3.2 Special arrangement for draining mult)i)ass heat exchangers
The blank ports in the turning plate for two-pass grouping and the first turning
plate for three-pass grouping are provided with holes, 3 mm diameter.
5.3.3 C3X[>064, 091,118 and (3X[>O60,100,140,180 and GXD085,145, 205, 265, 325. Support plates for multiijass grouping
To prevent deformation of the blank ports in multi-pass grouped heat
exchangers, a partition plate of stainless steel is placed after every turning
plate.
3 mm
'&-
~
DCQ
RC
The letter C up to the righr.
The ring down to the
right.
u:0.
LG
The letter G up to the right.
The ring down to the left.
L-plate
pd
li-ijiij'Hlj:
'ijilfsjil'ijii
•'JlUiU!',!'.:
1
Wi
5.2 Gaskets
M
GXD heat exchanger plates differ from conventional plates. Because the gasket
groove lies in the plate's neutral plane. The gaskets used next to the cover plates,
and partition palce in multipass heat exchangers, ate half thickness.
The letter L up to the right.
The ring down to the right.
Figure 6. Gluing specification
Figure 7. Placement of letter code in Hanging specification.
pXI
^=
f^_
\-\-
•x^--^^
With our range of CIP, Cleaning-in-Place, equipment you clean your heat
exchangers without dismantling. The equipment is followed by a range of
environment-friendly, but effective detergents, developed to remove different
foulants. Please contact Tranter PHE Ibr flither information.
5.2.1 Adjusting the gasl<ets
E X C H A N G E R S
5.3.1 Marking
The solvent must not contain chlorine. Clean the plates from residues of old
gaskets. Small patches of glue, hard to remove, that are securely stuck to the
gasket groove may remain there. They provide an excellent foundation for
the new gasket. Wash the gasket groove so that it is completely free of oil and
other greasy substances, using a rag and acetone or other solvent not containing
chlorine compounds. Then let the plate dry.
IMPORTANT: Sodium Hydroxide and concentrated nitric acid can seriously
harm the skin and mucous membranes. The solution must be handled with the
greatest care. Always wear protective g o ^ e s and rubber gloves.
A gasket that has come loose, either pardy or enrirely, must be glued in place. If
only a short length has become detached, gluing can be carried out immediately
before clamping, with the plate still sitting in the frame. If the entire gasket has
become detached, the plate should be taken out of the heat exchanger.
H E A T
LS
The letter S up to the right.
The ring down to the left.
Figure 8. Turning plate or Partition plate.
5.4 Assembly
Befofc the heat exchanger is assembled, inspect all gaskets and sur&ces that
lie against the gaskets. Panicles that may jeopardize the integrity of the
seals or damage the gaskets or sealing surfaces must be removed. Note that
contanünanis usually collect at the lower part of the plates.
Plates that have been provided with new gaskets must be checked to make sure
that the gaskets are in the correct gasket groove. Also check the Vi thickness
gaskets on the first and last plates.