JOWA
FINAL DRAWING
OILY WATER SEPARATOR
(OWS2.5)
FOR
SHANGHAI JIANGNAN CHANGXING HEAVY
INDUSTRY CO.,LTD
Hull No.:H1015A
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WATERFILTER
UV STERLIZER
SILVER STERLIZER
OIL CONTENT METER
OILY WATER SEPARATOR
SEWAGE TREATMENT PLANT
OIL DISCHARGE MONITORING
AND CONTROL SYSTEM (ODMS)
JOWA AB
Tulebo 865
S-428 34 K?LLERED
G?TEBORG, SWEDEN
TELEFON
+46(0)31-795 00 40
TELEFAX
+46(0)31-795 45 40
TELEX
21358 JOWA S
JOWA (Shanghai) Marine
Equipment Co. Ltd
5111 Luo Shan Road,
Pu Dong New Area,
Shanghai 201204, P.R.China
TELEFON:
(86-21)-33906890/91/92
TELEFAX:
(86-21)-33907550
E-MAIL:
jowasha@jowa.com.cn
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1.0 Introduction
The 3SEP OWS is an oily bilge water separation system designed to separate
free/emulsified oil from the bilge water and check that the oil residues in the
treated water do not exceed 15ppm before discharge overboard. The 3SEP
OWS complies with IMO Resolution MEPC 107(49). According to MARPOL
73/78 all vessels above 400 DWT require an approved bilge water separator
and alarm.
The treated water released by the 3SEP OWS contains not more than 15-
ppm oil in water. The system has been designed to meet the
requirements prescribed by IMO MEPC 107 (49).
For bilges with heavily emulsified oil in the bilge water a 3SEP OWS coupled to
a JOWA EBU (Emulsion Breaking Unit) offers the best solution and ensures
treated water under 5ppm. The 3SEP OWS is supplied standard with the
necessary inlet for connecting a JOWA EBU. For additional information about
the EBU system contact JOWA.
1.1 General
To obtain all the advantages from operating a 3SEP OWS ensure that all users
have adequate education for the equipment, ensure that the installation is
correct and ensure that the 3SEP OWS is maintained and operated in
accordance with the instructions in this manual. The correct function of the
equipment cannot be guaranteed if the user fails to follow these instructions.
We reserve the right to make changes to the 3SEP OWS without previous
notice.
Before installation and start-up read this manual carefully.
Supplier and manufacturer: JOWA AB
Tulebov?gen 104
S-428 34 K?llered , G?teborg
Sweden
Phone: +46-31 726 54 00
Fax: +46-31 795 45 40
Internet:: www.jowa.se
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1.2 System overview , normal flow and oil release through the OWS
(See flow diagram)
The 3SEP OWS is designed for a continuous flow with automatic operation, the
system does not require any chemicals. The following text gives an overview of
the 3SEP OWS separation process and the 3SEP OWS general arrangement.
In the first stage, tank T1, oil release is controlled by an oil sensor, CT03. The
sensitivity of the oil sensor CT03 is operator adjustable in order to minimise the
amount of treatable water released from T1 to the sludge tank. To adjust the
sensitivity of the oil sensor CT03 see chapter 5.3 and 5.6.
In the second stage emulsified oil is removed in the two filter tanks and the ppm
value is monitored continuously by an oil content meter before the treated water
is discharged overboard. The pneumatically controlled valves V02 and V03
release the free oil at the top of T2 and T3 to the concentrated sludge tank.
Oil is released from V02 every five minutes, for a time period of 20 seconds
(adjustable). Oil is released from V03 every hour for a fixed period of 5 seconds.
When the JOWA 3SEP OWS is started an automatic oil release from V02, and
V03 occurs for a fixed period of 3 seconds. This ensures that the pure oil that
has gathered at the tops of the tanks while the unit has been in stand by mode
is now released.
When a 15 ppm alarm occurs, the 3SEP OWS will automatically close the
overboard line V04 and open re-circulate valve V05. When the contamination
falls below 15 ppm the valve for re-circulate valve V05 close and valve for
overboard line V04 will open automatic.
The recirculation cycle occurs for 5 minutes and is adjustable (See Chapter
5.3.3). If the treated water remains above 15ppm at the resumption of normal
flow after the recirculation cycle, the 3SEP OWS will stop and an alarm will
occur. The 3SEP OWS can be back flushed and restarted. See Chapter 6.1 for
back flushing instructions.
The system is designed as a compact skid assembly with all connection points
collected, for easy “Plug n’ Play” installation. When the unit reaches the
customer the only remaining thing to do is to connect water inlets/outlets, the
electrical power supply and air connection, facilitating quick and easy
installation onboard.
Before leaving our workshop each unit has to pass a quality-test, where
all functions are tested and checked.
All equipment has the highest quality; the tanks are made of acid proof stainless
steel, AISI 316L. Our pumps are supplied by internationally recognised brands.
Spare parts are easily available from one of our offices or representatives
worldwide.
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1.3 Guarantee and service.
The JOWA 3SEP OWS is covered by a guarantee period. Guarantee claims
can be made according to JOWA’s Guarantee claim procedure. The JOWA
3SEP OWS contains components with no user serviceable parts which are
sealed. Breaking the seals placed on these components automatically voids the
warranty. Contact JOWA for assistance.
Service should only be carried out by an authorised JOWA service
engineer.
1.4 Note on recycling.
In the design and manufacture of the JOWA 3SEP OWS all Efforts have been
made to use components that can be recycled. This product or the parts of it
must be disposed of in an environmentally sound manner. Use the local public
or private waste collection service
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2.0 Technical specification
This chapter contains a quick reference table with the main technical
specifications for the 3SEP OWS.
Technical data for JOWA 3Sep OWS 2,5m3/h
Type: 3Sep OWS-2,5m3/h
Capacity: 2,5 m3/h
Influent: Bilge water
Effluent oil content. < 15 ppm acc. IMO MEPC 107(49)
Ambient temperature: 5 - 55°C
Operation Pressure: Normal 0,5 – 2 Bar, Safety Valve: 4 bar
Volume (total): 450 L
Weight (total): excl. Filter mtrl
& pump
380 kg (dry) 830 kg (wet)
Total power consumption: 1 kW (standard)
Air supply: 4 – 6 Bar dry clean instrument air
Common alarm.
15 ppm alarm.
Long time run alarm. (option)
Alarm outputs:
Transfer alarm (option)
Tank material: AISI 316L
Gaskets: Nitrile
Tank volumes: 3 x 150 L
Filter media: JOWA F200
Filter media quantity: 100 kg
Type Approval: Type approval by U.S.C.G Number 162.050/9057/0
DNV,CCS,RMRS,KR
Bilge Pump
Type: Mono Screw Pump
Flow rate: 2,5 m3/h
Weight: 21 kg
Suction: Max. 4,5 m lift capacity
Voltage: 230 – 480 VAC, other available on request.
Frequency: 50 - 60 Hz
Power consumption:
0,75 – 0,90 kW
2,42 – 2,05 A
R.P.M. 1380 - 1640
Protection class: IP55
Thermal insulation class: F
Prime water & dry running protection as standard.
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3.0 Installation
This chapter contains step-by-step information detailing how the 3SEP OWS is
installed. At the end of the chapter is a quick reference check list to aid in start-
up after installation or service.
3.1 Delivery
The 3SEP OWS is delivered complete with all valves, pipes, necessary fittings
and an oil content meter mounted on a single skid ready for installation
onboard.
The unit has passed a work-shop tested before delivery.
3.2 Placement of the skid
The 3SEP OWS skid should be placed on a plane surface and welded or bolted
using the pre drilled holes in the skid. When installing the unit it is important to
leave a minimum of 500mm working space in front of the unit (see mechanical
drawings).
3.3 Pipe connections
All connection points are collected together for easy “Plug n’ Play” installation:
Piping connections:
Oily bilge water
inlet:
1” – DN25
Oil release
outlet (to
sludge tank):
1” – DN25
Back flush
water inlet:
1” – DN25
Water outlet
(overboard)
1” – DN25
Drain and Re-
circulate water
(to bilge)
1” – DN25
Outlet to
JOWA EBU
(Optional)
1” – DN25
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3.4 Separator pump
The pump is delivered as a separate unit. To be installed as close to the bilge
water tank as possible and not more than 4,5 meters suction height to avoid
suction problems. Use piping with the same dimension as the pump is designed
for. Refer to the flow diagram chapter and the recommended installation
drawing.
Use pipe connections according to specification below.
1 1/4”( DN 32 )
3.5 Electric connections
The electrical equipment of the separator is ready for installation when
delivered. The power supply should be three phase 380-480 VAC 50/60Hz.
Other power supplies on request. See the electrical drawings for further
information.
The mains supply should have a 10A fuse.
Cable for pump, mains supply and 3 pole circuit breaker are not included in the
delivery.
Voltage: 3 phase 380-400-415-440-460-480 VAC 50/60 Hz.
Other power supplies on request.
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3.6 Air supply pipes and connections
Air supply is connected to the pneumatic solenoid control valves. The solenoid
block is located just below the control cabinet. The counter connector is
supplied for attaching of 8 mm Cu-pipe. The pressure should be 4-6 bar dry
instrument air.
Fig 3.6.1 Air inlet to solenoids.
3.7 Filter media JOWA F - 200 C
The filter media, JOWA F – 200 C, for the filter tanks T2 and T3 is delivered
fully prepared in sacks of 25 kilos each. The Separator is always empty by
delivery. Filter media for the first filling is included in the delivery.
NOTE! For guaranteed function we recommend the JOWA F - 200 C filter
media.
3.8 Quantity of filter media
Model Tank size quantity (2 Tanks)
2,5m3/h 150l 100kilo
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3.8.1 Filling the tanks T2, T3 with filter media
NOTE! Before filling check that the internal strainers are carefully
fastened.
Fill the tanks T2 and T3 through the upper hatches to 60-70 % of the tank
volume, approximately 10-15 centimetres below the upper strainers. When the
tanks are filled with filter media mount the upper hatches and back flush each
filter one by one until clean fresh water is coming through the sample valves
V18 and V19 (See Chapter 6.1 for detailed back flushing instructions). We
recommend back flushing with fresh water at a pressure of no more than 4 bar.
Maintain low water pressure and speed during back flushing to avoid
losing filter media from V30. Throttle V15 and V16 to about 30%open to
control water speed and pressure during back flushing.
3.9 Initial start-up checklist
Use the following start-up checklist after installation or service.
null Fill tank T2 and T3 with filter media
null Make sure the bilge pump is filled with water before start, to prevent
running dry.
null Check that the manual valve positions on the 3SEP OWS are correct for
normal operation (See System function chapter 4)
null Open all valves between the bilge water tank and the separator.
null Open all valves on the separator discharge line.
Back flush filter tanks 2 and 3 for a short while.(See Maintenance
Chapter 6).
null Turn the power on at switch S1.
null Check rotation of the pump
null Now the separator is ready for normal operation.
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4.0 System Function.
This chapter provides a detailed description of the unique functions of the 3SEP
OWS. The material provided in this chapter gives the operator the possibility to
gain an good understanding into how and why the 3SEP OWS performs its
functions. It is intended that the information in this chapter may be used to help
the operator optimise the 3SEP OWS performance to his or her specific bilge
requirements.
4.1 Manual shut-off valve positions
The following tables indicate which of the manually controlled valves are open
and closed during normal operation of the 3SEP OWS.
4.2 High level start switch/ Low Level stop switch
Automatically starts the 3SEP OWS when the bilge water level is high and stop
the OWS when bilge water level is low, using level switches located in the bilge
tank. (the OWS need to be in AUTO mode)
4.3 Low Level switch only.
In some installations there are only a low level switch installed in the bilge tank.
To control the OWS by this switch please connect it to the terminals for low
level switch and make a jumper on terminals for high level switch. The OWS will
now start when the low level switch is high and stop when the low level switch is
low. (the OWS need to be in AUTO mode)
4.4 Dry running protection
Protects the 3SEP OWS pump from running dry. (see electrical drawings)
4.5 Prime water
Automatically primes the 3SEP OWS pump. (see electrical drawings)
Opened
V10
V12
Closed
V11 (If no EBU)
V13
V14
V15
V16
V17
V18
V19
V30
Partly Closed
FR01
Adjust so there is
sample to the bilge
alarm, se the flow
diagram.
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4.4.0 Optional features on the 3SEP OWS.
The following are optional features for the 3SEP OWS:
4.4.1 Bilge clean mode (optional)
In bilge clean mode the flow from the bilge only passes through the first stage
tank T1 and then returns to the bilge tanks. The bilge water is pumped into the
top of T1 thru valve V10 where most of the free oil is gathered on the
coalescence surfaces. When the oil senor CT03 detects oil it is released
through the pneumatically controlled valve V01 and is delivered to the
concentrated sludge tank. The flow then passes through V13 and returns to the
bilge.
4.4.2 Transfer mode (optional)
Some vessels have more than one bilge tank. Transfer mode uses the OWS
bilge pump to transfer water between these different bilge tanks without flow
passing through the 3SEP.
4.4.3 Level switches in 2 bilge tanks (optional)
It is possible to control level switches in more than 1 bilge tank. If this option is
at the OWS, a switch for tank selection is mounted. With this switch it is
possible to run the OWS in Auto from 2 tanks. Standard delivery is 1 tank.
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4.4.4 3SEP OWS with JOWA Emulsion Breaking Unit EBU (Optional)
A JOWA EBU system may be coupled to the 3SEP OWS as an extra pree-
treatment stage. The JOWA EBU & 3SEP OWS package can achieve treated
water with in 5ppm.
It is strongly recommended that the operator consider a 3SEP OWS coupled
with JOWA EBU if the bilge water contains high levels of emulsified oil. The
JOWA EBU is a chemical treatment of the emulsified oil in water. The chemical
is a flocculent that helps the small particles of oil coalesce together and thus
separate by gravity.
The 3SEP OWS skid is ready supplied with the connection for a JOWA EBU
(See Flow Diagram).
Fig 4.4 JOWA EBU schematic.
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5.0 Operation
This chapter gives the operator detailed information on how the major control
components of the 3SEP OWS are operated and adjusted.
5.1 General
General operation of the 3SEP OWS is facilitated by the PLC user interface and
the switches located on the door of the main control box. All of the electric and
pneumatic control equipment is located on the control cabinet stand at the side
of the 3SEP OWS skid frame.
? All electric equipment is connected to the main control box and the 3SEP
OWS is operated from here. The main power switch, S1, for the 3SEP OWS
is located on the side of the main control box.
? The electronic parts for the oil content meter are located inside the oil content
meter control box.
? The pneumatic solenoids for the pneumatic control valves are located on the
side of the 3SEP OWS skid frame control stand
5.2 Start/Stop the 3SEP OWS
After the actions in section 3.9 ‘Initial Start-up Checklist’ have been completed
the unit can be started and run in normal operation.
5.2.1 Start/Stop OWS manual mode
To start, please turn switch S2 to position OWS MAN. To stop, switch S2 to
position 0.
It is possible to start the OWS by a remote signal in manual mode. Se chapter
for remote operation.
5.2.2 Start/Stop OWS auto mode
To start, please Turn switch S2 to position OWS Auto
In this mode the OWS is controlled by the high/low level switches located in the
bilge tank.
To stop, switch S2 to position 0.
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5.2.3 Start/stop transfer mode (optional)
Transfer mode can be operated in both auto and manual mode. In Auto mode
the pump is controlled by the level switches in the tank and in manual mode the
operator need to start and stop the system. However, the operator must
exercise caution and see that the manual ball valves between the bilge tanks
are in the correct position for transfer mode function correctly. It is possible to
start the transfer by a remote signal in manual mode. Se chapter for remote
operation.
5.2.4 Start/stop transfer manual Mode
To start, turn switch S2 to position TRANS MAN. To stop, switch S2 to
position 0.
It is possible to start the transfer by a remote signal in manual mode. Se chapter
for remote operation.
5.2.5 Start/stop transfer auto mode
To start, turn switch S2 to position TRANS AUTO.
In this mode the OWS is started by the high/low level switches located in the
tank.
To stop the transfer, switch S2 to position 0.
5.2.6 Start/Stop bilge clean mode (optional)
To start, turn switch S5 to position 2 for bilge clean mode. To stop, switch S5
to position 0.
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5.3 The PLC User Interface
The PLC user interface facilitates the running and understanding of the 3SEP
OWS. Through the user interface and display on the main control cabinet door
you receive all messages concerning the 3SEP OWS such as operational
status, alarms, and pre-set times.
Fig 5.3 PLC Interface
The user moves up and down through the menu display tree using the
up/down and left/right keys. Information such as timers is input using the
number keys. The input value is confirmed by pressing the enter key.
Left/ Right
Keys
Up/ Down
Keys
Enter Key
Display
Window
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5.3.1 OWS manual and auto operation
OWS Man/Auto
Select Man/Auto Mode
Electric Power has been connected
or
Electric Power has been shut down
and returned.
Stand by
Waiting for mode select.
Mode selected
Waiting for start signal
OWS running
OWS Stopped
OWS AUTO OWS MAN
LS2
LS1
Reset AlarmS3
S2 S2
High
Low
S2 0
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5.3.2 OWS remote operation (activated in service menu)
OWS man mode
Select Local or Remote Start
Electric Power has been connected
or
Electric Power has been shut down
and returned.
Stand by
Waiting for mode select.
Man mode selected
Select Local or Remote start.
Waiting on remote start
OWS running
When remote is activated in service mode it is also possible to run the transfer
(manual only) in remote mode.
OWS
Man
Reset AlarmS3
S2
A1 1
S2 0
RPB
A1
Start/Stop
2
S2 0
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5.3.3 Timers and settings
To select and adjust settings, press key “Down/6”
Step in Menu with
up/down/left/right arrows.
When a figure in display flashes, this value
can bee adjusted.
After new value has been inserted,
press Enter button.
If no value should be adjusted, please press
enter and down arrow to go to the next setting
To go back from the right setting menu,
Please press left arrow.
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5.3.4 Transfer, manual or auto operation. (option)
Transfer bilge water between two bilge tanks.
Transfer Man/Auto
Select Man/Auto Mode
Electric Power has been connected
or
Electric Power has been shut down
and returned.
Stand by
Waiting for mode select.
Mode selected
Waiting for start signal
Pump Running
Pump Stopped
TRANS AUTO TRANS MAN
LS2/LS1
LS1
Reset Alarm S3
S2 S2
High
Low/High
S2 0
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5.3.5 Information displays.
Is displayed when V01/Tank 1 makes oil
release
When OWS Pump is stopped, OWS makes a
drop of system pressure to avoid
unnecessary flow in sample line.
Outlet flow from T3 trough V04 is changed to
V05 when high ppm. This display is not active
when the recirculation time is set to 0.
5.3.6 Alarms
The different alarm conditions are listed in this section. A Failure message
indicates the problem. When the failure is corrected the alarm can be reset by
pressing the red reset button.
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ALARM TEXT.
Alarm trigged every time power has been shut
down. Reset Alarm to start OWS in “Stand By
Mode”
Alarm trigged when pump motor has been
over heated check that OWS pump is
running without disturbing.
Alarm trigged when flow to OWS pump is
missing. Check pipe and valves in suction
pipe.
Alarm trigged when still high ppm after
recirculation time is run out. Status is high
ppm alarm.
Alarm trigged after set “long run time” is
reached
Alarm trigged when over heating protection
relay is activated. Check if heater is on when
no water in tank.
V01 has been open longer than set time.
Check if there is Water, Oil or Air in tank T1
~PV:002 = Air in tank T1
~PV:040 = Oil in tank T1
Circulation Pump has been running longer
than set time. Check flow, level in tank, stop
in pipe, valves on pipe.
Transfer Pump is restarted cause of repeated
high level in tank. Check for leaks in tank
and check level switches.
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5.3.7 Service mode
Activate / Deactivate Options
To open Service Mode
To activate function, stop OWS when
Alarm, press button 1.
To deactivate function, Stop OWS when
Alarm, press button 0.
To switch display, press up or down arrow.
To activate Remote Start in Man Mode,
press button 1.
To deactivate Remote Start in Man Mode,
press button 2.
To return to Maine Menu, press Enter,
or wait time delayed return.
Push/hold button 1
for 6 sec
After 6 sec,
Push Enter to
open service
mode
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5.4 The oil content meter
The oil content meter is located on the control cabinet stand on the 3SEP OWS
skid. The oil content meter door displays the oil content in PPM in the water
being discharged from the 3SEP OWS. The alarm limit for the oil content is
adjustable between 0 - 15 PPM. The oil content in the water is measured by the
sensor unit at the oil meter. Technical and Operation manual for the Oil Content
meter will be delivered separate..
5.5 The pneumatic solenoid control valves
The pneumatic solenoid control valves control the valves V01 to V05. Each
pneumatic solenoid control valve is marked with the valve position number. The
air pressure to the solenoid control valves must be 4-6 BAR dry instrument air
to get a proper function and performance of the valves.
5.6 Oil sensor CT03
The oil sensor, CT03, measures the capacitance between the sensor rod and
the pipe wall. The index of the oil sensor varies from 2 to 100, where 2 is air and
100 is clean water (oil has a value of 2-20). The factory set point value is 80.
The set point of CT03 may be adjusted by the operator to suit the amount of
free oil in the bilge water. For example a lower set point value on CT03 may suit
a bilge with high amounts of free oil. Lowering the set point value has the
advantage of decreasing the amount of water released to the concentrated
sludge tank. However lowering the value may also shorten the lifespan of the
JOWA F – 200 C filter media, as it must absorb more oil. Conversely, raising
the value will result in more water being released to the concentrated sludge
tank but a longer filter media lifespan. The sensor rod has to be cleaned
regularly to ensure its correct function, See chapter 6 for cleaning instructions.
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6.0 Maintenance
This chapter provides detailed instructions for common maintenance operations
on the 3SEP OWS. A regular maintenance timetable is also included. The
timetable is designed to aid the operator in scheduling minor periodic
maintenance tasks thus avoiding unnecessary breakdowns.
6.1 Back flushing procedure for filter tanks T2, T3.
? After JOWA F - 200 C is installed at start-up
? The oil content meter gives an alarm indicating an oil content exceeding 15
ppm for a period of extended time.
? After changing the JOWA F - 200 C filter media as part of regular service,
? After every operation of the OWS.
Proceed as follows:
1. Switch off the unit, close the valve V10 (and V11 if 3SEP OWS is connected
to a JOWA EBU).
2. Make sure that the pressurised fresh water is available at the valve V12
3. Start the back flushing of filter tank T2 by opening the valve V12 carefully.
4. Open the 3-way valve V30 so the handle is pointing against T2. Open V15
Do not fully open V15, open it slowly, and only 30% This avoids flushing
away the JOWA F - 200 C filter media trough the valve V30. It also avoids
damage to the pneumatic and non-return valves from flushing the JOWA F -
200 C filter media into them.
5. Be sure that V30 is allowing the flow to pass thru T2. You may check this by
observing the outlet pressure at V18
6. Check the water quality through the valve V18.
7. Back flush until the water is clean.
8. Close the valves V15 ,V18 and V30
9. Start the back flushing of filter tank T3 by opening the 3-way valve V30 so
the handle is pointing against T3. Open V16, Do not fully open V16, open it
slowly, and only 30%
10. Be sure that V30 is allowing the flow to pass thru T3. You may check this by
observing the outlet pressure at V19.
11. Check the water quality through the valve V19.
12. Back flush until the water is clean.
13. Close the valves V12, V16, V19 and V30.
14. Open valve V10 (and V11 if 3SEP OWS is connected to a JOWA EBU).
Back flushing is complete.
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6.2 Changing JOWA F - 200 C filter media in filter tanks T2, T3.
The filter media must be changed when back flushing is not cleaning the filters
sufficient to get the reading in the oil meter below 15ppm. This section
describes the procedure for changing the filter media.
6.2.1 Removing the filter media
NOTE! When removing filter media, make sure that you do not damage internal
filter tank strainers. The strainers are located in the top and bottom of T2 and
T3, see mechanical drawings.
? Stop the 3SEP OWS at the main control box, close V10 (and V11 if 3SEP
OWS is connected to a JOWA EBU).
? Open the filter tanks bottom valves V15, V16 and V14 to drain the water from
the filter tanks.
? Open the sample valves V18 and V19 to let air into the top of the tanks.
? Remove the upper hatches and wait until the water flow at the bottom has
stopped.
? Open the lower hatches and empty the tanks of filter media.
Clean the tanks carefully inside and check that the internal strainers are
undamaged and free of carbon and oil. Check the zinc anodes and change
them if more than 70 % of the zinc has corroded.
6.2.2 Filling the tanks T2, T3 with filter media
NOTE! Before filling check that the internal strainers are carefully
fastened and undamaged. Should the strainers be damaged replace them.
See Spare/Consumables Parts List. Fill the tanks T2 and T3 through the upper
hatches to 60-70 % of the tank volume, approximately 10 centimetres below the
upper strainers. When the tanks are filled with filter media mount the upper
hatches and back flush each filter one by one until clean fresh water is coming
through the sample valves V18 and V19 (See the previous section of this
chapter for detailed back flushing instructions).
NOTE! For guaranteed function we recommend the JOWA F - 200 C filter
media.
JOWA 3SEP OWS
OILY WATER SEPARATOR
28
6.3 Checking the anode protection
The first stage tank, T1 and the filter tanks T2, T3 are made of acid proof
stainless steel AISI 316L. The tanks, pipes and fittings are protected against
corrosion by fixed zinc anodes. The zinc anodes should be checked every 30
days. They should be changed if more than 70% of their mass is corroded
6.3.1 Position of anodes in the tanks.
Tank T1:
The zinc anode is located at the front of the tank in the lower socket.
Tanks T2, T3:
The zinc anode is located inside lower hatch
The location of the anodes are marked with labels.
Drain the tanks before checking the anodes.
JOWA 3SEP OWS
OILY WATER SEPARATOR
29
6.4 Regular maintenance timetable
6.4.1 Before start
? Check that the pneumatic solenoids and valves are functioning properly
? Check for leaks of both air and oil/water
6.4.2 After every operation
? Back flush the filter tanks T2 and T3 according to the instructions in 6.1.
? Clean the oil content meter measuring according to the manufacturers
instructions. Refer to the manual
6.4.3 Every month
? Check the Oil sensor CT03. Clean the rod of the oil sensor thoroughly by
unscrewing and removing CT03 from T1.
? Check the zinc anodes..
6.4.4 Every six months
? Check the Stator at the pump P01.
6.4.5 Every 12 months
? Clean tank T1 on the inside. Remove the oil release flange and pipe and
clean the tank thoroughly using high pressure hot water to remove the
oil.
JOWA 3SEP OWS
OILY WATER SEPARATOR
30
7.0 Trouble Shooting
This chapter provides the operator with a comprehensive trouble-shooting
guide.
7.1 General
Every error in the operation is indicated as an alarm and presented at the
operators display of the PLC.
7.2 Operation errors
Error Remedy/Action
The oil content meter indicates over 15 PPM
1. Back flush the filter tanks T2 and T3.
2. Replace the JOWA F - 200 C filter
media if necessary
The pump, P01, does not give a flow.
1. Check the Stator and replace it if
necessary.
2. Check that the electric motor is
receiving the right voltage.
3. Check the rotation of the pump.
4. Check the pipes are not clogged
Pressure too high at the pressure gauge P1
and the safety valve V50 opens
1. Check that the manual valves in the flow
direction are opened.
2. Check that air is connected.
3. Run the pneumatic valves manually by
turning the small screws on the solenoid
control valves.
4. Check the connectors for the valves for
air leaks.
5. Back flush the filter tanks T2 and T3.
The pneumatic valves do not open.
1. Check the air connection (4-6bar)
2. . Run the pneumatic valves manually by
turning the small screws on the solenoid
control valves.
3. Check the connectors for the valves for
air leaks.
4. Check the plastic hoses.
V01 does not close
CT03 reading incorrectly
1. Check for leakage on the suction side of
the bilge pump, air is entering the pipes.
2. Check water inside the tank by open
check valve V17
3. Check the settings for the oil sensor.
JOWA 3SEP OWS
OILY WATER SEPARATOR
31
8.0 Flow Diagram (P & I)
A
1
1
2
2
3
3
4
4
5
5
6
6
A A
B B
C C
D D
CHECK
REV
APPR.
DRAWN
FILE NAME SIZE
ID NO
MODEL ID SCALE
JOWA AB
TULEBOV?GEN 104
G?teborg-SWEDEN
Teleph. +46 31 795 00 40
24-0025-01-01 3Sep 2,5m3.iam
A3
Greg Shannon
#8 081018 DW
24-0025-01
1:15
24-0025-01
2004-07-06
GA, MAJOR DIMENSIONS
JOWA 3SEP OWS 2,5m3/h
MARPOL IMO MEPC 107(49)
-01
A
517
1045
DRY MASS: 400 kg
WORKING PRESSURE: 2 BAR
MAINTENANCE AREA: 500mm PERIMETER IN FRONT OF UNIT
COMPLIES WITH MARPOL IMO MEPC 107(49)
19
1280
1
7
8
0
1495
1
5
52
8
5
4
1
55
4
56
7
5
8
0
5
80
4
0
n14 (x4)
1178
1
1
2
2
3
3
4
4
5
5
6
6
A A
B B
C C
D D
CHECK
REV
APPR.
DRAWN
FILE NAME SIZE
ID NO
MODEL ID SCALE
JOWA AB
TULEBOV?GEN 104
G?teborg-SWEDEN
Teleph. +46 31 795 00 40
24-0025-01-01 3Sep 2,5m3.iam
A3
Greg Shannon
#8 081018 DW
24-0025-01
1:10
24-0025-01
2004-07-06
ISO GA, CONNECTION POINTS
JOWA 3SEP OWS 2,5m3/h
MARPOL IMO MEPC 107(49)
-02
FILTER TANKS
OIL
REMOVAL
TANK
F: BACKFLUSH WATER,
RECIRCULATED WATER
>15 PPM AND DRAIN
OUTLET TO BILGE TANK
MALE THREAD DN 25
E: WATER OUTLET,
<15 PPM FOR
OVERBOARD
DICHARGE
MALE THREAD DN 25
D: WATER INLET,
FOR SYSTEM
BACKFLUSH
MALE THREAD DN 25
B: OIL RELEASE
OUTLET,TO
SLUDGE TANK
MALE THREAD DN 25
A: OILY WATER INLET
FROM BIILGE
MALE THREAD DN 25
TANK T1
ANODE
FILTER TANK
ANODES
C: OPTIONAL WATER
OUTLET TO JOWA EBU,
FURTHER PROCESSED
TO ACHIEVE <5ppm
MALE THREAD DN 25
INSTRUMENT AIR
COMPRESSION
COUPLING DN 8
1
1
2
2
3
3
4
4
5
5
6
6
A A
B B
C C
D D
CHECK
REV
APPR.
DRAWN
FILE NAME SIZE
ID NO
MODEL ID SCALE
JOWA AB
TULEBOV?GEN 104
G?teborg-SWEDEN
Teleph. +46 31 795 00 40
24-0025-01-01 3Sep 2,5m3.iam
A3
Greg Shannon
#8 081018 DW
24-0025-01
1:15
24-0025-01
2004-07-06
ISO GA, PARTS LIST
JOWA 3SEP OWS 2,5m3/h
MARPOL IMO MEPC 107(49)
-03
86-0000-019 kg JOWA Sea Guard114
19054-252560.5 kgBrassFlow restrictor113
22303-202240.4 kgBrassSafety valve DN 20-22mm 4 Bar112
95030-000060.3 kgBrassNon return valve DN25211
24001-002014.8 kg Control Cabinet110
50100-220020.1 kgPlasticFilterscreen drain 0,5mm29
50150 - 220020.2 kgPlasticFilterscreen bottom 0,5mm48
50150 - 200020.2 kgPlasticFilterscreen top 1,0mm.ipt47
22311-036001.1 kg Oil Sensor CLM-36N16
10109-001520.1 kgBrassPressure gauge, 0-10 Bar15
22304-002561.5 kgBRASSPneumatic valve DN25 N.C. 54
50150-0010156.9 kgAISI316L3Sep Tank 150 L23
24-0025-01-5075.6 kgAISI316L3Sep Gravity Tank 2,5m3h12
24-0025-01-30136 kgS2353Sep Frame 2,5m311
ID NUMBERMASSMTRLDESCRIPTIONQTITE
1
2
3
3
4
4
5
4
6
NOTES:
1. INTERNAL PIPE SPEC: 28 x 1.2 MTRL: COPPER
2. INTERNAL PLUMBING CONNECTIONS IN BRASS AND
COPPER PRESS FITTING SYSTEM WITH OIL RESISTANT SEALS
3. ALL TANKS ANODE PROTECTED
4. SKID FRAME CONSTRUCTED IN S235 STEEL
5. FILTER MATERIAL JOWA F-200, 100kg TOTAL (4x25kg SACKS)
CUT AWAY
VIEWS
4
7
8
9
10
12
14
FILTER TANKS
OIL RELEASE
SAMPLE POINT
GRAVITY SEPARATOR TANK
OIL RELEASE SAMPLE POINT
11
13
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