advertisement
Baureihe SW 22
8. Anhang
8.1
Teileverzeichnis
550.xx
552
561
576
690.01
690.02
702
704
732.01
732.02
811
VDMA-Nr.
Benennung
101 Pumpengehäuse
135
151
Schleisswand
Außenmantel
162
163
230.xx
320.01
Saugdeckel
Druckdeckel
Laufrad
Kugellager
320.02
360
411.xx
412.xx
433
433.01
433.02
502
Kugellager
Lagerdeckel
Dichtring
O-Ring
Gleitringdichtung
Gleitringdichtung
Gleitringdichtung
Spaltring
Stützscheibe / Passscheibe
Spannscheibe
Halbrundkerbnagel
Griff
Elektr. Dichtungsüberwachung für Dichtungsraum
Elektr. Dichtungsüberwachung für Klemmraum
Ablaufrohr
Zulaufrohr
Halter f. Dichtungsüberwachung
Halter f. Dichtungsüberwachung
Motorgehäuse
903.xx
904
914.xx
920.xx
922
930.xx
932.xx
940
950
970
990.xx
VDMA-Nr.
Benennung
812 Motorgehäusedeckel
814
819
Stator mit Wicklung
Welle mit Rotor
822.01
822.02
824.xx
826.xx
Motorlagergehäuse
Motorlagergehäuse
Anschlussleitung
Kabeleinführung
834.xx
835.xx
836.xx
839.05
839.06
839.09
839.10
900.xx
Kabeldurchführung
Motoren-Klemmbrett
Klemmleiste
Potentialausgleichsklemme
Steckverbinder
Kabelschuh, isoliert
Kabelschuh, isoliert
Ringmutter / Sonderschrauben
Verschlussschraube
Gewindestift
Zylinderschraube
Hutmutter
Sechskantmutter
Zahnscheibe
Sicherungsring
Passfeder
Ausgleichsscheibe
Typenschild
Motoröl
14
Series SW 22
Index
Page
8.2 Sectional drawings ............................................................................................................................................................. 27
15
Series SW 22
These instructions must be read in conjunction with the separate User’s Safety Instructions, the Motor Operating
Instructions as well as the Operating Instructions supplied for other components.
1. Safety instructions
• These operating instructions contain basic instructions, which have to be adhered to during installation, operation and maintenance. These operating instructions must be read by the mechanic and the operator before installation and operation of the pump and have to be kept available at the operating place of the machine/unit at all times. Persons who are not familiar with the operating instructions shall not use this product.
• The working area has to be closed off expediently and must adhere to local workplace regulations.
• Make sure that the emergency exit from the workplace is not barricaded.
• To prevent suffocation and poisoning caused by venomous gases, make sure that enough oxygen exists at the workplace.
• If you have to work with welding tools or electric tools, make sure that there is no explosion hazard.
• Always use personal safety equipment such as safety boots, rubber gloves, safety glasses and helmet.
• Immediately after repair or maintenance work, all safety and protection equipment must be reinstalled and placed in function again.
• The operator is responsible to third parties for the work area of the pump.
• Rules for accident prevention as well as engineering rules must be observed.
• Never put a hand or finger into suction inlet or discharge of the pump while the impeller is rotating.
• Persons are not permitted to stay in the pumping medium during operation of the pump.
• For operation of the pumps in explosive environments only models with explosion-proof motors (Ex model) must be used.
• In accordance with product liability law, we point out that we shall not be liable for damages caused by the pump due to non-observance of the instructions and guidelines set forth in the operating instructions. Same terms are valid for accessories.
2. Handling and intermediate storage
2.1
Handling
• Heed the weight and the center of gravity.
• Attach the lifting gear to the lifting eyes or lifting ear of the motor. Do not lift the unit by the electric cable.
Examples of correct handling of the unit:
Proper handling
Improper handling
2.2
Unpacking
Check that the delivery is complete and undamaged. If any defects are found, have them confirmed on the original bill of lading by the carrier and report these defects to us immediately.
The cable end is fitted with a moisture-proof seal. Do not remove this seal until the cable is to be connected to the power supply.
2.3
Intermediate storage
• Store the pump in an upright position.
• Seal all suction and pressure ports with a sealing cap, a dummy flange or a dummy plug.
• Storage location: must be free of dust, dry and protected against heat and frost.
• Long-time storage of more than 3 months: preservation required!
• Long-time storage of more than 2 years: renew the lubricants before setting the pump into operation.
2.4
Preservation
If requested, we will preserve your pumps before delivery or at site. Please contact our service department.
3. Description
The channel impeller pumps of the SW series are single-stage submersible sewage pumps with a pressure-water-tight motor and a closed-coupled design. They can be supplied for different types of installation and with various impeller types. For dry well installation of the pump in a separate sump all models are available with a motor jacket cooling.
The pumps are not suitable for pumping liquids containing heavy abrasive solids, like sand or stones. Before pumping of chemically aggressive liquids, the resistance of the materials must be checked.
For details on the supplied execution, please refer to the documentation related to the contract.
16
Series SW 22
3.1
Designation
Example: SW 100-310.K/D/N + AM3D/8,5/4 DS ex MK
Series
Nominal width discharge branch [mm]
Impeller nominal diameter [mm]
Impeller form
Hydraulic basic number
Installation
Motor type
Rated output P
2
[kW]
No. of poles
Kind of current
Explosion-proof
Motor cooling shroud
• Function of a mechanical seal: Two slide faces rub against each other and are lubricated by a liquid film at the same time.
Mechanical seals are wearing parts for which no guarantee can be given.
3.3
Mounting arrangements
N M
TH TV
Example
The individual mounting arrangements are described in section
3.3.
3.2
Construction
Also refer to the sectional drawings (section 8.2).
3.2.1
Pump casing
The pump casing has a radial discharge branch and a axial suction branch.
3.2.2
Impeller types
Vortex impeller (.F)
For high gas content liquids, as well as stringy or matting materials, sludge and abrasive suspensions.
Single-channel impeller (.K)
For media that contain coarser solid particles or stringy or matting materials. Large impeller free passage for smooth transport.
Two-channel impeller (.Z)
For contaminated media that contain solid particles but no strand-forming admixtures with long fibers or gas and air bubbles.
3.2.3
Shaft and bearings
Greased maintenance-free roller bearings.
3.2.4
Shaft seal
Shaft sealing by to mechanical seals acting irrespective of direction of rotation. Motors AM1 / 2 poles up to 1.2 kW with mechanical seal and radial sealing ring. For details on the supplied shaft seal, please refer to the documentation related to the contract.
3.4
Motor
Pressure-water-tight squirrel cage motor. Temperature class F, protection class IP 68. Explosion-proof motors are also available. (For details, please refer to the documentation related to the contract.)
• Maximum coolant temperature 35°C, short term up to 60°C.
• Motors for operation mode S1 are designed with a maximum number of 15 switches per hour.
• As a general rule: Starting method up to 3 kW DOL, for more then 3 kW star-delta. For accurate details please refer to the nameplate or to the documentation related to the contract.
• For operation, the motor must be fully submersed.
• If the motor is operated in a surfaced or not fully sub-
mersed state: operation in this state requires forced circulation cooling or a special motor dimensioning.
• Noise level during operation, 1.60 m from the ground
≤ 70 d(B)A.
• When operating the pumps with a frequency converter the converter must be equipped with an outlet filter to protect the pump motor from damaging voltage spikes. Such voltage spikes may destroy parts of the pump motor.
3.4.1
Electrical connecting plan
Depending on the type and the size, the motor can be fitted with different connection cables. For details on the motor type, please refer to the documentation related to the contract.
17
Series SW 22
3.4.2
Connecting plans
• Execution A: Standard
• Execution B: Explosion proof
AM1
AM2
AM3A
AM3B
AM3C
AM3C
AM3C
AM3D
AM3E
AM3F
Motor type
Starting
DOL
DOL
DOL
DOL
DOL
DOL
S/D
S/D
S/D
S/D
Connection
Y
Y
Y
Y
Execution
A B
1
1
1
1
2
2
2
2
Y 1 2
Δ
Y/
Δ
Y/
Δ
Y/
Δ
Y/
Δ
3
5
5
7
7
4
6
6
8
8
Table 1: Allocation of connecting plans
• Connecting plan - No. 1
• Connecting plan - No. 3
Main supply
Motor protection
Motor cable
Motor-/Control cable
Motor protection
Motor
Oil chamber
• Connecting plan - No. 4
T1, T3 : Temperature sensor (controller)
S1, S2 : Leak monitoring oil chamber
Main supply
Motor protection
Main supply
Motor protection
Motor protection
Motor cable
Motor protection
Motor cable
Motor
Motor
Oil chamber
Oil chamber
Motor-/Control cable
T1, T3 : Temperature sensor (controller)
S1, S2 : Leak monitoring oil chamber (acc. execution)
• Connecting plan - No. 2
Motor-/Control cable
• Connecting plan - No. 5
T1, T2 : Temperature sensor (limiter)
S1, S2 : Leak monitoring oil chamber
Main supply
Motor cable
Motor protection
Motor protection
Motor cable
Motor
Motor
Oil chamber
Oil chamber
Motor-/Control cable
Motor-/Control cable
T1, T2 : Temperature sensor (limiter)
S1, S2 : Leak monitoring oil chamber (acc. execution)
T1, T3 : Temperature sensor (controller)
S1, S2 : Leak monitoring oil chamber
18
Series SW 22
• Connecting plan - No. 6
Motor cable
Motor-/Control cable
• Connecting plan - No. 7
Motor cable
Motor cable
Motor
Oil chamber
Connection space
T1, T2 : Temperature sensor (limiter)
S1, S2 : Leak monitoring oil chamber
S3, S4 : Leak monitoring connection space (acc. execution)
Motor-/Control cable
Motor-/Control cable
Motor
Oil chamber
Connection space
T1, T3 : Temperature sensor (controller)
S1, S2 : Leak monitoring oil chamber
S3, S4 : Leak monitoring connection space (acc. execution)
• Connecting plan - No. 8
Motor
Oil chamber
Connection space
T1, T3 : Temperature sensor (controller)
T1, T2 :Temperature sensor (limiter)
S1, S2 : Leak monitoring oil chamber
S3, S4 : Leak monitoring connection space (acc. execution)
3.4.3
Monitoring devices
To avoid damage, the pump unit is fitted with various monitoring devices. For the connection of the monitoring devices, refer to section 3.4.2.
3.4.3.1
Protective motor switch
Depending on the current consumption of the motor during operation, the protective motor switch must be set to 90 - 100% of the nominal motor current (refer to the nameplate).
3.4.3.2
Temperature feeler
All motors are fitted with a temperature sensor. This sensor prevents the motor coils from overheating.
Standard execution:
Standard models have the sensors connected to the motor power supply cable, the wire ends marked T1 and T3. They must be connected to the safety circuit of the control box in order to provide an automatic re-start of the motor, when the motor cooled down. The switch-off temperature of the sensors for standard models is from 130°C to 150°C.
Standard models of 1Ph-motors have the sensors internally connected, so that no external connection to the control box is necessary. When the motor cools, it is switched on again automatically.
Explosion proof execution,
AM1, AM2, AM3A and AM3B:
Explosion proof models (1 Ph and 3 Ph) have a set of temperature sensors with a higher switch-off temperature of approx.
140°C, connected to the motor cable, the wires are marked T1 and T2. They must be connected to the safety circuit of the control box in order to provide a manual re-start, when the motor cools. Fitted are looking ex sensors instead of standard sensors, i. e. in case of series connection to the relay the sensors can be positioned back for the duration of the cooling by simply detaching the pump from power supply.
Explosion proof execution, AM3C, AM3D:
Explosion proof models have a set of temperature sensors built-in, instead of standard sensor with a higher switch-off temperature of approx. 140°C, connected to the motor cable, the wire ends marked T1 and T2. They must be connected to a special relay in the starter box in order to provide manual pump restart.
Explosion proof execution, AM3E, AM3F:
Explosion proof models have a set of temperature sensors built-in additionally to the standard sensor as described above, with a higher switch-off temperature of approx. 140°C, connected to the motor cable, the wire ends marked T1 and T2. Ex-sensors must be connected to a special relay in the starter box in order to provide manual pump re-start. The manual re-start must be assured by a special combination of relays in the control panel.
PTC resistor protection:
For operation in conjunction with a frequency converter, the explosion-proof submersible motors must be protected by a thermal motor circuit breaker comprised of PTC resistors according to DIN 44081 / 44082 and an approved triggering device (heed the documentation related to the contract and the separate connecting plan!).
19
Series SW 22
3.4.3.3 Leak monitoring
Except for the AM1 motor, all motors are fitted with a moisture feeler. This sensor is installed in the oil chamber resp. in the connection space. In combination with the DG 110 control unit supplied as an accessory, it ensures secure and reliable monitoring of the mechanical seal for leaks. Depending on the type of the control unit, either the motor is automatically switched off or appropriate signals are issued if any water enters the oil chamber or the connecting space.
Leak monitoring oil chamber:
The electrical resistance of the oil in the chamber is measured by two sensors S1/S2. The sensors must be connected to a tripping unit in the control panel (electrode relays). In case of water entering the chamber through the shaft seals, the resistance will change. For explosion-proof models an intrinsicallysafe relay has to be chosen.
Leak monitoring connection space:
Two sensors S3/S4 are used for monitoring leaks into the connection chamber. The sensors must also be connected in the control panel to a tripping unit with galvanically separated safety circuit (electrode relays). For explosion-proof models an intrinsically-safe relay has to be choosen.
Control unit DG 110
L01 (L)
A1/A2 polarity = as required
The DG 110 is used for monitoring the conductivity of the pumps’ oil filling. This conductivity is an indicator for the amount of water that has penetrated inside. It is measured by an electrode that reaches into the oil chamber resp. into the connection space. The DG 110 is fitted with a sensitive measuring and switching amplifier with a relay output. The measuring voltage applied for the measurements is 2.5V. The theoretically possible measuring current is 0.1mA. The threshold value of the relay is 100kOhm. The relay picks up when the measured value drops below this threshold. This state is indicated by a red lightemitting diode on the control unit. The input circuit is fitted with a filter against noise pulses. An isolating transformer isolates the measuring circuit from the mains voltage.
3.5
Dimensions, weights, centers of gravity, capacity
On request.
Weight: refer to the documentation related to the contract.
3.6
Installation requirements
1-
2+
L0 (N)
Sensor in the pump
A1
A2
11
12
14
• Protect the unit against atmospheric influences.
• Ensure sufficient ventilation, heating and cooling and heed any sound proofing regulations that might be applicable.
• Check that the unit and its components can be safely transported to or removed from the installation location without accidents. Make sure that the existing doors or openings are large enough.
• Make sure that the required lifting gear and the tools required for attaching the gear are available.
3.6.1
Space requirements for operation and maintenance
• Ensure that sufficient space, at least from 2 sides, is left for subsequent maintenance requirements. This space should have, for reason of good accessibility, min. 0.8 m width.
• The set should be easily accessible from all sides.
3.6.2
Subsoil, foundation
• The subsoil or concrete foundation must be sufficiently strong to ensure that the pump can be safely installed as required for proper functioning.
3.6.3
Supply connections
Check that all supplies like power, water and drainage necessary for installation and later operation are available in the form required.
4. Mounting/installation
Sensor in the pump
Sketch of the DG 110 control unit
Auxiliary voltage A1 - A2 220-240 V +/- 10%, 50/60 Hz
Special voltage 24 V u. 110/115 V 50/60 Hz
24 V = galvanically separated, unpoled
Current consumption 1.5 VA
Measuring voltage 1 - 2 2.5 V
Measuring current max. 0.1 mA
Switching threshold 100 kOhm +/- 5%
Operating mode
Output static current principle
1 change-over contact
For proper functioning, the pump must be installed in a careful and proper manner. Installation faults can cause injuries and damage and can also result in premature wear of the pump.
Check the oil level before installing the pump (refer to section 6.2.1).
4.1
Preliminary checks
• The building must have been prepared according to the dimensions given on the foundation and layout plans.
• Pay attention to the maximum depth of immersion of the pump (see pump label).
20
Series SW 22
• If the pump is installed in a sump, the sump opening must be covered with a tread-safe cover after installation.
• The operator has to prevent damage through the flooding of rooms caused by defects of the pump through the use of appropriate measures (e.g. installation of alarm units, backup pump or alike).
4.2
Stationary wet-pit installation (N)
• Install the foot bend, the guide rail and the ceiling bracket (refer to the dimension sheet).
• Then attach the pump so that it hangs in the guide rail and lower it using the chain. The pump automatically engages in the foot bend installed on the floor.
4.3
Mobile wet-pit installation (M)
• Attach a rigid or a flexible pipe to the discharge branch of the pump.
• Lower the pump using the chain and place it in a vertical position onto a firm subsoil, with the motor facing upwards.
• Tighten the chain vertically and secure it to prevent the pump from tipping over.
4.4
Dry-pit installation (TV, TH)
• Install the pump (refer to the dimension sheet).
• Connect the suction line and the discharge line to the pump.
Make sure that the lines are not subjected to stress.
• If necessary, mount a venting pipe on the pump casing.
4.5
Grouting of the pump and other final checks (N, TV,
TH)
4.6.3
Pressure tests
• Heed the relevant regulations.
• Heed the permissible nominal pressure of the individual components.
5. Commissioning/decommissioning
5.1
Preparing the pump for operation
5.1.1
Checks
Before switching on the pump, ensure that the following actions have been carried out:
• Check the oil level (refer to section 6.2.1).
• Check that the fastening screws of the pump, the foot bend, etc. are firmly tightened.
5.1.2
Electrical connections
The electrical connections may only be established by a qualified electrician. The connections must be established according to the VDE and EVU regulations and according to the relevant regulations for motors with an explosion-proof design.
• After the pump or the foot bend has been aligned and fastened: grout in/underpour and, if necessary, also underpack the fastening device with flash-set, non-shrinking cement.
• Let the cement set for at least 48 hours.
• Retighten the foundation bolts.
4.6
Piping
The following not binding specifications are recommendations for the correct dimensioning and laying of pipework (the planner is responsible for the correct dimensioning of the pipework!).
4.6.1
Discharge pipe
• Lay the pipe in a continuously ascending manner.
• Maximum flow rate: 3 m/s (heed the head loss).
• There must be no bottlenecks in the discharge pipe.
• Lay the pipework system in such a manner that no inerts will deposit in any other pump.
• Dimension the flange and the pipe according to the maximum possible pressure.
• Prevent air pockets. If necessary, vent high points.
• Prevent changing flow rates by using a uniform pipe diameter.
• Install non-return valves and shut-off valves.
4.6.2
Suction line (mounting arrangement TV, TH)
• Maximum flow rate: 2 m/s (at maximum capacity).
• Do not install bends on different levels following one after the other.
• Lay the pipe in a continuously descending manner (at least
1 %) towards the pump).
• Provide a separate suction pipe for each pump.
• Make sure that no air pockets can develop in the pipe.
• Before operation, an expert check must secure that the required electrical protection measures exist. The connection to ground, earthing, isolating transformer, fault current breaker or fault voltags circuit must correspond to the guidelines set forth by the responsible power plant.
• Connect the motor according to the electrical connecting plans (refer to section 3.4.2).
• Make sure that the electrical pin-and-socket connections are installed flood- and moisture-safe. Before starting operation check the cable and the plug against damages.
• The end of the pump power supply cable must not be submerged in order to prevent water from penetrating through the cable into the motor.
• Ensure that motor starter/control box are not installed in explosive environments.
• Do not operate the motor without a protective motor switch and a temperature and a leak monitoring device (if such a device exists).
• Make sure that the available mains voltage and frequency match the data given on the nameplate.
• The connection and control cables of the motor and the level controller must be routed in such a manner that they cannot get caught by the suction force of the pump.
21
Series SW 22
5.1.2.1
Connection of 1 Ph-Motors
Pumps with 230V/1Ph-motors must be connected to a seperate control box with motor starter and operating capacitor. Original/
Matching control units can be supplied as accessory. If any other then an original control unit is used, make sure that the thermal relay in the motor starter is set according to the nominal current consumption of the pump motor.
For capacitor sizes, see table below:
Pump type
Operating capacitor
µF
V
AC
SW 65-160 and 80-160
2 poles up to 0.8 kW (P2)
SW 65-160 and 80-160
2 poles over 1 kW (P2)
SW 65-160 and 80-160
4 poles up to 0.9 kW (P2)
SW 80-170 and 80-210 up to 1.1 kW (P2)
25
30
40
40
450
450
450
450
Table 2: Data for capacitor
5.1.2.2
Connection of 3 Ph-Motors
Pumps with 3Ph-motors are supplied with or must be connected to a separate control box. Original/Matching control units can be supplied as accessory. If any other than an original control unit is used, make sure that the thermal relay in the motor starter is set according to the nominal current consumption of the pump motor.
5.1.3
Check of the direction of rotation
5.1.3.1
1 Ph-pumps
1 Ph-pumps do not require any check, as they always run with the correct direction of rotation.
5.1.3.2
3 Ph-pumps
• When connecting to a right handed rotating field all pumps run with the correct direction of rotation (U, V, W -> L1, L2,
L3). The direction of rotation of the mains can be controlled by a rotating field measuring instrument.
• If no rotating field measuring instrument is available, the pump can be briefly switched off and immediately switched on again in both horizontal/vertical position. Observe direction of rotation of the impeller throught the suction branch/delivery branch. The direction of rotation is correct, when the impeller is rotating anti-clockwise in the suction branch and clock-
wise in the discharge branch.
Before checking the direction of rotation, make sure that no foreign particles are in the pump casing. Never reach into the pump or hold any objects into the pump. Keep a sufficient safety distance to the pump.
• If the direction of rotation is not correct, have the direction of rotation of the motor corrected by an electrician.
Do not run pump counter to its given operation direction.
5.2
Level control
For stations with automatic pump operation, a level controller must be installed. When the pump is switched off, the motor still must be fully submersed. The water level may only be lowered down to the pump casing if the pump is designed for S3 (intermittent) operation or if it is fitted accordingly (e.g. with a forced circulation cooling system).
5.3
Commissioning
5.3.1
Initial commissioning/recommissioning
• Mounting arrangement N: Only start up the pump when it is fully submersed. The gate valve must be throttled. Slowly open the gate valve until the discharge line is completely filled.
• Mounting arrangement M: Only start up the pump when it is fully submersed.
• Mounting arrangement TV, TH: Fill and vent the suction pipe and the pump. Only start up the pump when it is filled with liquid. The gate valve must be throttled. Slowly open the gate valve until the discharge line is completely filled.
5.3.2
5.4
Function check
• Check that the values displayed at the pressure gauge, at the vacuum gauge, at the ammeter and, if installed, at the flow meter match the values given in the documentation related to the contract.
• Check the operating data at all operating states possible in the system (parallel operation of pumps, other delivery purposes, etc.).
• Write down the determined values as standard values for subsequent monitoring.
5.3.3
Operation with closed gate valve
Do not operate the pump when the gate valves on the suction and the discharge sides are closed or, if a non-return valve is installed on the suction side, when the gate valve on the discharge side is closed.
In this mode, the medium to be delivered heats up very quickly in the pump, causing a high pressure in the pump due to the generation of steam. If the casing’s bursting pressure is exceeded, the casing parts can burst apart as in an explosion, causing severe injuries and damage.
Decommissioning
5.4.1
Switching off the pump
• Close the shut-off device in the discharge line.
• A non-return valve above which a corresponding pressure is built by the liquid column makes the actuation of a discharge side valve unnecessary.
• Switch off the pump.
5.4.2
Draining the pump
• With danger of frost: drain the pump and the pipes and protect them from freezing up while they are decommissioned.
• After contaminated media have been delivered: drain the pump and, if necessary, flush it. This measure is also required to protect the pump against corrosion while it is standing still.
22
Series SW 22
6. Maintenance/servicing
6.1
General notes
• Always disconnect the electrical connections before carrying out any work on the machine. Secure the pump unit so that it cannot be switched on inadvertently.
• Before maintenance or repair make sure that all rotating parts stand still!
• Before carrying out maintenance and service, the pump must be thoroughly flushed with clean water. Rinse the pump parts in clean water after dismanteling.
• In case of a defect of the pump, a repair shall be carried out only by the manufacturer or through an authorized workshop.
Conversions or alternations of the machine/unit are permitted only after arrangement with the manufacturer. Only original spare parts shall be used.
• In accordance with the product liability law we point out that we shall not be liable for damages caused by our product due to unauthorized repair by persons other than the manufacturer or an authorized workshop or due to the use of spare parts other than original parts. The same product liability limitations are valid for accessories.
6.2
Maintenance and inspections
Pumps running under normal operation conditions should be inspected at least once a year. If the pumped liquid is very muddy or sandy or if the pump is operating continu-ously, the pump should be inspected every 1.000 operating hours.
6.2.1
Lubricants: filling quantity and lubrication intervals
6.2.1.1
Quality and filling quantity
• Oil quality: The oil chamber is filled with medical white oil by factor standard: Brand name Ondina 917, Co. Shell. Equivalent oils may be used alternatively.
• Filling quantity: Fill the oil chamber with appropiate oil up to the bottom line of the inspection hole. Keep pump in upwright position. Following table is indicating values for the oriantation:
Motor type
Oil quantity in liter with execution
Standard
0.01
EX
0.4
AM1 2 poles 0.8 kW up to 1.2 kW
AM1 2 poles 1.8 kW up to 3.4 kW
AM1 4 poles
AM2 2 poles
1.1
1.1
0.5
0.5
AM2 4 poles 0,9 kW up to 1.3 kW
AM2 4 poles 1.9 kW up to 2.4 kW
AM3A
AM3B
0.6
0.6
0.6
1.9
AM3C
AM3D
AM3E
AM3F DN150
AM3F DN200, DN250
3.7
10
12
16
Table 3: Oriantation values for filling quantity
• Recommended commercially available oils:
Shell, Ondina 917
Shell, Tellus C22
6.2.1.2
Oil change
• Have the oil changed after 3.000 operating hours, however latest after one year of operation.
• When the pump is new or after replacement of the shaft seals, check the oil level after one week of operation.
• The oil becomes greyish white like milk if it contains water.
This may be the result of defective shaft seal.
Hot oil or liquid to be delivered that has penetrated into the intermediate casing can cause an excess pressure in the intermediate casing. Therefore, use a cover (e.g. a piece of cloth) when opening the oil drain outlet/oil filler cap to protect against liquid that spurts out.
• Turn the pump to horizontal position.
• Place an oil pan below the drain outlet.
• Open the oil drain outlet.
• Completely drain the old oil and dispose it in the stipulated manner.
• Rinse the oil chamber using some fresh oil while turning the rotor on the impeller.
• Fill in oil until the oil chamber is completely filled.
• Check oil level in upright position of the pump. Oil chamber must be filled up to the bottom line of the inspection hole.
• Insert the adjusting screw.
6.2.2
Nominal current
Nominal current (A): Check with ampmeter.
6.2.3
Pump casing and impeller
Check all components for possible wear. Replace defective parts.
6.2.4
Checking the bearing clearance
Apply radial and axial pressure to the impeller. If the impeller can be moved in radial or axial direction, the ball bearings must be replaced.
6.2.5
Cable entry
Make sure that the cable entry is watertight and that the cables are not bent sharply and/or pinched.
6.2.6
Leak monitoring
• Change the oil if the indicator signals that water has penetrated into the intermediate casing (refer to section 6.2.1).
• If, after a short time, the indicator again signals that water has penetrated, drain the oil into a glass vessel and check whether the oil contains water. If it does, replace the mechanical seal. Mechanical seals are wearing parts for which no guarantee can be given.
• When the mechanical seal has been replaced, check it for leaks after one or two weeks.
6.2.7
Maintenance contract
For a regular and workmanlike accomplishment of all neccesary service and control works we recomend to conclude a maintenance contract. Kindly contact our service department.
23
Series SW 22
6.3
Disassembly and assembly instructions
Only qualified personnel may disassemble and assemble the pump as shown in the sectional drawing (refer to section 8.2). The order of the steps to be carried out for the disassembly is indicated in the sectional drawing.
Only specially trained personnel may disassemble explosion-proof motors
6.3.1
Assignment of the sectional drawings:
• Execution A: Standard
• Execution B: Explosion proof
• Execution C: Standard, with cooling jacket
• Execution D: Explosion proof, with cooling jacket
Impeller
Pump type
Motor
Hydraulic
F SW 65-160.F
F SW 80-160.F
F SW 80-170.F
F SW 80-230.F
F SW 80-230.F
F SW 80-230.F
F SW 100-230.F
F SW 100-230.F
F SW 100-280.F
F SW 100-280.F
K SW 65-160.K
K SW 80-160.K
K SW 80-210.K
K SW 80-210.K
K SW 80-250.K
K SW 80-250.K
K SW 80-250.K
K SW 80-250.K
K SW 100-250.K
K SW 100-250.K
K SW 100-250.K
K SW 100-250.K
K SW 100-310.K
K SW 100-310.K
K SW 150-370.K
K SW 150-370.K
Z SW 150-350.Z
Z SW 200-400.Z
Z SW 250-380.Z
Z SW 250-380.Z
-
-
-
-
-
AM3B
AM3C
AM3D
AM3C
AM3D
AM3C
AM3D
Hydr. A+B
Hydr. C+D
AM3A
AM3B
AM3C
AM3D
AM3A
AM3B
AM3C
AM3D
AM3C
AM3D
AM3D
AM3E
AM3E
AM3F
AM3E
AM3F
Table 4: Assignment of the sectional drawings
Execution
A B C D
1 2
1 3
-
-
-
4 5
6 7 -
-
8 9 10 11
12 13 14 15
-
-
8 9 10 11
12 13 14 15
16 17 18 19
20 21 22 23
24 25 -
24 26 -
27 28 -
29 30 -
-
-
-
31 32
33 34 -
35 36 37 38
39 40 41 42
31 32 -
33 34 -
35 36 37 38
39 40 41 42
43 44 45 46
47 48 49 50
51 52 53 54
55 55 56 56
55 55 56 56
57 57 58 58
59 59 60 60
57 57 58 58
24
Series SW 22
7. Problems: causes and remedies
1) Output low or no output at all
2) Excessive output
3) Motor overload
4) Temperature monitoring device switches off
5) Leak monitoring device indicates that water has penetrated into the intermediate casing
1) 2) 3) 4) 5) Cause of the malfunction
The water level is lowered excessively (suction head is too high, inlet level is too low)
Remedy
• Check the supply and the dimensioning of the system
• Check the level controller
The pump has not been fully vented • Vent the pump
The temperature of the medium is too high • Lower the temperature (please contact the manufacturer)
The gas content of the medium is too high • Check the gas content of the medium (please contact the manufacturer)
The inlet/suction line has not been fully vented (mounting arrangements TH, TV only)
The counterpressure is too high
• Vent the inlet/suction line
• Check the inlet/suction line and the fittings for leaks
• Open the shut-off devices further
• Check the dimensioning of the system
(pressure losses too high?)
• Adjust the head of the pump
(only after the manufacturer has been consulted)
The counterpressure is too low
Wrong direction of rotation
The pump is clogged
The interior parts are worn
The speed is too low
The speed is too high
The pump runs on two phases
There are deposits on the motor
The switching frequency is too high
Water has penetrated into the intermediate casing
• Check the dimensioning of the system
• Throttle the discharge side shut-off valve further
• Correct the direction of rotation
• Remove the deposits
• Replace the worn parts
• Check the electrical installation
• Check the electrical installation
• Check the electrical installation
• Clean the motor on the outside
• Check the level controller
• Change the oil. If leaks occur again: check and, if necessary, replace the mechanical seal
Table 5: Problems
25
Series SW 22
8. Appendix
8.1
Parts list
550.xx
552
561
576
690.01
690.02
702
704
732.01
732.02
811
VDMA No.
Designation
101 Pump casing
135
151
Wear plate
Cooling jacket
162
163
230.xx
320.01
Suction cover
Pressure cover
Impeller
Lower ball bearing
320.02
360
411.xx
412.xx
433
433.01
433.02
502
Upper ball bearing
Bearing cover
Sealing ring
O-Ring
Mechanical seal
Mechanical seal
Mechanical seal
Wear ring
Supporting ring
Clamping disc
Grooved drive stud
Handle
Leak monitoring
Leak monitoring
Threaded tube (discharge)
Threaded tube (suction)
Holder for leak monitoring
Holder for leak monitoring
Motor casing
903.xx
904
914.xx
920.xx
922
930.xx
932.xx
940
950
970
990.xx
VDMA No.
Designation
812 Motor casing cover
814
819
Stator with winding
Motor shaft with rotor
822.01
822.02
824.xx
826.xx
Lower bearing cover
Upper bearing cover
Connection cable
Cable leading-in socket
834.xx
835.xx
836.xx
839.05
839.06
839.09
839.10
900.xx
Cable inlet
Motor terminal board
Terminal strip
Protective conductor clamp
Connection
Cable socket, insulated
Cable socket, insulated
Ring nut/ Special screws
Locking screw
Threaded pin
Threaded pin
Dome nut
Hexagonal nut
Tooth washer
Circlip
Key
Ball bearing disc
Pump label
Motor oil
26
advertisement
Related manuals
advertisement