Edition: 12.2009 · 610.444430.40.000 |
Original Operating Instructions · English |
Operating Instructions L-BV3
2BV3151
L-Serie
L-Series
Flüssigkeitsring
Liquid Ring
Contents
Contents
1 |
Safety |
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3 |
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1.1 |
Definitions ................................................................................................................................. |
3 |
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1.1.1 |
Safety alert symbol....................................................................................................... |
3 |
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1.1.2 |
Signal words................................................................................................................. |
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1.2 |
General safety precautions ....................................................................................................... |
4 |
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1.3 |
Residual risks............................................................................................................................ |
5 |
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2 |
Intended Use ....................................................................................................................................... |
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6 |
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3 |
Technical Data .................................................................................................................................... |
7 |
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3.1 |
Mechanical data ........................................................................................................................ |
7 |
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3.2 |
Electrical data............................................................................................................................ |
7 |
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3.3 |
Operating conditions ................................................................................................................. |
7 |
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4 |
Operating modes................................................................................................................................. |
9 |
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4.1 |
Self-priming operation ............................................................................................................... |
9 |
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4.2 |
Operation with operating-liquid feed ......................................................................................... |
9 |
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5 |
Transport and Handling..................................................................................................................... |
10 |
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6 |
Installation ......................................................................................................................................... |
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11 |
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6.1 |
Installation ............................................................................................................................... |
11 |
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6.2 |
Electrical connection (motor) .................................................................................................. |
12 |
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6.3 |
Connecting pipes/hoses (vacuum pump/compressor)............................................................ |
14 |
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6.3.1 Inlet connection and discharge connection................................................................ |
15 |
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6.3.2 |
Operating-liquid port................................................................................................... |
15 |
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6.3.3 |
Notes .......................................................................................................................... |
15 |
7 |
Commissioning.................................................................................................................................. |
16 |
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7.1 |
Preparation and start-up ......................................................................................................... |
16 |
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7.2 |
Self-priming operation ............................................................................................................. |
17 |
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7.3 |
Operation with operating-liquid feed ....................................................................................... |
18 |
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8 |
Operation........................................................................................................................................... |
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8.1 |
Self-priming operation ............................................................................................................. |
20 |
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8.2 |
Operation with operating-liquid feed ....................................................................................... |
20 |
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9 |
Shut-Down and Longer Standstills.................................................................................................... |
22 |
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9.1 |
Draining................................................................................................................................... |
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9.2 |
Preparing for longer standstill ................................................................................................. |
22 |
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9.3 |
Storage conditions .................................................................................................................. |
23 |
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10 |
Servicing............................................................................................................................................ |
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24 |
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10.1 |
Maintenance............................................................................................................................ |
24 |
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10.2 |
Repairs/troubleshooting .......................................................................................................... |
26 |
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10.3 |
Service/After-sales service...................................................................................................... |
29 |
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10.4 |
Decontamination and Declaration of Clearance ..................................................................... |
29 |
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11 |
Disposal............................................................................................................................................. |
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29 |
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EC Declaration of Conformity................................................................................................................. |
30 |
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Form for statement on safety ................................................................................................................. |
31 |
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© 2009 Gardner Denver Deutschland GmbH · Industriestraße 26 · 97616 Bad Neustadt · Germany
Replication, distribution and / or editing of this document and the use and distribution of its content is prohibited unless explicitly permitted. Violation obligates compensation for damages.
All rights reserved in case of the issue of a patent, utility patent or design patent.
Safety
Fig. 1: Design of liquid-ring vacuum pump/compressor
1Operating-liquid port
2Discharge connection
3Inlet connection
4Connection for cavitation protection
5Drain hole
6Vacuum pump/compressor housing
7Vacuum pump/compressor cover
8Flow direction arrows
9Rotating direction arrow
10Drive motor
11Base
12Fan guard (over external fan)
13Terminal box
1 Safety
1.1Definitions
To point out dangers and important information, the following signal words and symbols are used in these operating instructions:
1.1.1Safety alert symbol
The safety alert symbol is located in the safety precautions in the highlighted heading field on the left next to the signal word (DANGER, WARNING, CAUTION).
Safety precautions with a safety alert symbol indicate a danger of injuries.
Be sure to follow these safety precautions to protect against injuries or death!
Safety precautions without a safety alert symbol indicate a danger of damage.
1.1.2Signal words
DANGER |
The signal words are located in |
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WARNING |
the safety precautions in the |
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highlighted heading field. |
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CAUTION |
They follow a certain hierarchy |
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NOTICE |
and indicate |
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NOTE |
(in conjunction with the safety |
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alert symbol, see Chapter 1.1.1) |
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the seriousness of the danger |
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and the type of warning. |
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See the following explanations: |
DANGER
Danger of injuries.
Indicates an imminently hazardous situation, that will result in death or serious injury if the corresponding measures are not taken.
WARNING
Danger of injuries.
Indicates a potentially hazardous situation, that could result in death or serious injury if the corresponding measures are not taken.
CAUTION
Danger of injuries.
Indicates a potentially hazardous situation, that may result in minor or moderate injury if the corresponding measures are not taken.
CAUTION
Danger of damage.
Indicates a potentially hazardous situation that may result in property damage if the corresponding measures are not taken.
NOTICE
Indicates a possible disadvantage, i.e. undesirable conditions or consequences can occur if the corresponding measures are not taken.
NOTE
Indicates a possible advantage if the corresponding measures are taken; tip.
© Gardner Denver Deutschland GmbH |
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610.444430.40.000 |
Safety
1.2General safety precautions
WARNING
Improper use of the unit can result in serious or even fatal injuries!
These operating instructions
must have been read completely and understood before beginning any work with or at the pump-motor unit,
must be strictly observed,
must be available at the operating location of the pump-motor unit.
WARNING
Improper use of the unit can result in serious or even fatal injuries!
Only operate the pump-motor unit
for the purposes indicated under "Intended Use"!
with the fluids indicated under 'Intended Use'!
with the values indicated under 'Technical Data'!
WARNING
Improper use of the unit can result in serious or even fatal injuries!
All work on and with the pump-motor unit (transport, installation, operation, shut-down, maintenance, disposal) may only be carried out by trained, reliable expert personnel!
WARNING
When working on the unit, there is a danger of injury, e.g. in the form of cuts/cutting off, crushing and burns!
During all work on and with the pump-motor unit (transport, installation, operation, shutdown, maintenance, disposal) wear personal safety equipment (safety helmet, protective gloves, safety shoes)!
WARNING
Hair and clothing can be pulled into the unit or caught and wound up moving parts!
Do not wear long, loose hair or wide, loose clothes! Use a hair net!
DANGER
Electrical danger!
Before beginning work on the unit or system, the following measures must be carried out:
Deenergize.
Secure against being switched on again.
Determine whether deenergized.
Ground and short-circuit.
Cover or block off adjacent energized parts.
DANGER
Electrical danger!
Work on electrical installations may be carried out by trained and authorized electricians only!
DANGER
Electrical danger!
Replace loose connections, singed or burned cables immediately!
DANGER
Electrical danger!
Do not open the motor terminal box unless absence of electricity has been ensured!
DANGER
Electrical danger!
Depending on the charging state of the capacitors, a residual voltage may be present on the terminals in the terminal box.
After opening the terminal box cover, it must be ensured that the capacitors are completely deenergized:
Measure the voltage at the corresponding jumpers (see the circuit diagram in the terminal box).
Dissipate the residual voltage with suitable means if necessary.
The capacitors must be completely deenergized.
WARNING
Danger due to gauge pressure and vacuum! Danger due to escaping fluid!
Before beginning work on the unit or system:
Interrupt supply of operating liquid.
Bleed lines and vacuum pump/compressor (depressurize).
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© Gardner Denver Deutschland GmbH |
Safety
WARNING
Danger from rotating external fan of unit!
Only operate the unit with the fan guard mounted!
It is prohibited to remove the fan guard!
WARNING
Danger from rotating impeller of unit!
Only operate the unit with the vacuum pump/compressor cover and housing mounted!
It is prohibited to remove the vacuum pump/compressor cover and the housing!
WARNING
Danger due to gauge pressure and vacuum! Danger due to escaping fluid!
Danger from rotating impeller of unit!
Only operate the unit with the pipes/hoses connected to the intake and discharge connection, as well as to the operating-liquid port!
WARNING
Danger in the form of cuts or cutting off extremities on the impeller of the pumpmotor unit!
Do not reach into the unit through open connections!
Do not insert objects into the unit through the openings!
WARNING
Danger due to gauge pressure and vacuum!
Check the lines and containers used for sufficient strength!
WARNING
Danger due to gauge pressure and vacuum! Danger due to escaping fluid!
Check the connections of the pipe/hose connections for leaks!
WARNING
Danger of burns and scalding from hot surfaces of the pump-motor unit and from hot fluids!
Do not touch during operation! Allow to cool after shut-down!
CAUTION
Danger of crushing from unit tipping over!
Secure the pump-motor unit on the installation surface before putting into operation!
1.3Residual risks
WARNING
Danger zone:
Fan guard
Hazard:
Long, loose hair can be drawn into external fan through fan guard grate, even with fan guard mounted!
Protective measures:
Wear hair net!
WARNING
Danger zone:
Hot surface.
Hazard:
Burns/scalding possible.
Protective measures:
Do not touch! Wear protective gloves!
© Gardner Denver Deutschland GmbH |
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610.444430.40.000 |
Intended Use
2 Intended Use
These operating instructions
applies to liquid-ring vacuum pumps/compressors of the series L-BV3, model 2BV3151,
contain instructions bearing on transport and handling, installation, commissioning, operation, shut-down, storage, servicing and disposal of the L-BV3,
must be completely read and understood by all operating and servicing personnel before beginning to work with or on the L-BV3,
must be strictly observed,
must be available at the site of operation of the L-BV3.
About the operating and servicing personnel of the L-BV3:
These persons must be trained and authorized for the work to be carried out.
Work on electrical installations may be carried out by trained and authorized electricians only.
The L-BV3
are pump-motor units for generating vacuum or gauge pressure.
are used to extract, transport and compress the following pumped gases/vapors:
–all dry and humid gases,
which are not explosive, aggressive or toxic,
–preferably air or air/vapor mixtures.
–The gases/vapors to be fed must be free of solid material.
However, small quantities of light suspended materials or liquids can also be transported.
are designed for operation with the following operating liquids:
–Water
with a pH of 6.5 to 9.5,
free of solid materials (such as sand).
–If the pH values or operating liquids differ, it is necessary to contact the Service Department.
have the rough vacuum range as the intended operating range.
are intended for industrial applications.
are designed for continuous operation.
When operating the L-BV3, the limits listed in Chapter 3, "Technical Data", Pg. 7 ff. must always be complied with.
If the L-BV3 is used to extract hot fluids, the necessary safety measures must be taken by the user.
Foreseeable Misuse
It is prohibited
to use the L-BV3 in applications other than industrial applications
unless the necessary protection is provided on the system,
e.g. guards suitable for children's fingers,
to use the L-BV3 in rooms in which explosive gases can occur,
the sucking up, feeding and compression of explosive, flammable, aggressive or toxic fluids,
to operate the L-BV3 with values other than those specified in Chapter 3, "Technical Data", Pg. 7 ff.
Any unauthorized modifications of the L-BV3 are prohibited for safety reasons. Maintenance and repair work by the operator are only permitted in the scope described in these operating instructions.
Any maintenance and repair work going beyond this may only be conducted by companies authorized by the manufacturer (inquiry with the Service Department necessary).
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© Gardner Denver Deutschland GmbH |
Technical Data
3 Technical Data
3.1 Mechanical data Weight
Type |
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approx. |
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approx. |
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[kg] |
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[lbs] |
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2BV3151 |
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9 |
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19.8 |
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Higher weights are possible with special |
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models. |
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Minimum distances for heat dissipation |
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Type |
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Minimum distance from |
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fan guard to adjacent surface |
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[mm] |
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2BV3151 |
20 |
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0.787 |
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Noise level
Measuring-surface sound-pressure level according to EN ISO 3744 measured at a distance of 1 m [3.28 ft] with moderate throtteling (8 kPa abs. [1.16 psia]) and lines connected.
Type |
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1-m measuring-surface sound |
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pressure level L [dB (A) |
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at 50 Hz: |
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at 60 Hz: |
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2BV3151 |
70 |
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70 |
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Operating speed
See rating plate.
NOTICE
Exceeding of the operating speed will negatively affect the operating behavior of the pump-motor unit:
higher noise emissions
stronger vibrations
shorter grease consumption time
reduced bearing change interval
To prevent damage due to excessively high speeds, it may be necessary to request the limit speed (inquire with the Service Department).
Tightening torques
The values specified here for tightening torques apply unless other values are indicated.
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Tightening torques |
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for screw connections |
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(pipe-connections) |
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Thread |
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[Nm] |
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[ft lbs] |
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± 10 % |
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± 10 % |
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G⅛ |
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4.5 |
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3.32 |
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G⅜ |
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16 |
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11.8 |
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Tightening torques |
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for electrical connections |
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(terminal board-connections) |
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Thread |
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± 10 % |
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± 10 % |
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M4 |
1.0 |
0.738 |
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M5 |
2.2 |
1.62 |
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These values for electrical connections applies to all terminal board connections with the exception of modular terminal blocks.)
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Tightening torques |
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for electrical connections |
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(modular terminal blocks) |
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± 10 % |
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M3 |
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0.443 |
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(These values for electrical connections apply to all modular terminal blocks.)
3.2Electrical data
See drive motor rating plate.
3.3 Operating conditions Temperatures
Temperature of pumped gases/vapors:
max. +110 °C |
max. +230 °F |
At higher fluid temperatures, measures must be taken on the system to prevent burns, e.g. mount separating safety device (cover).
In addition, we also recommend one of the following measures at temperatures > 80 °C [> 176 °F]:
Increasing the operating-liquid flow rate by up to twice the rated liquid flow rate (cooling circuit)
Use of a series capacitor
© Gardner Denver Deutschland GmbH |
7 / 32 |
610.444430.40.000 |
Technical Data
Operating-liquid temperature:
max. +40 °C |
max. +104 °F |
min. +5 °C |
min. +41 °F |
Nominal value: |
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+15 °C |
+59 °F |
Ambient temperature:
max. +40 °C |
+104 °F |
min. +5 °C |
+41 °F |
Pressures
Max. permissible pressure in the pumpmotor unit pint max during compressor operation:
300 kPa abs. |
43.5 psia |
If higher pressures can occur in the system, then corresponding protective devices must be provided.
Max. pre-pressure of the operating liquid
300 kPa abs. |
43.5 psia |
When the permissible operating liquid pressure is exceeded, too much liquid enters the vacuum pump/compressor. Damage can occur.
Min. inlet pressure p1 min:
Depending on the type and temperature of the operating liquid.
During vacuum operation without cavitation protection (cavitation protection hole closed):
5 kPa |
0.725 psi |
It may not be dropped below to prevent damage due to cavitation!
Damage due to cavitation are purposely disregarded if the minimum inlet pressure is 3.3 kPa [0.479 psi].
The specified values apply to the following conditions:
Operating liquid:
Water at +15 °C [+59 °F]
pumped gases/vapors: dry air at +20 °C [68 °F]
They are higher the higher the temperature and the higher the vapor pressure of the operating liquid used.
During vacuum operation with cavitation protection (cavitation protection hole open):
max. achievable vacuum, i.e. complete throttling
The following generally applies: The higher the temperature, the lower the intake capacity, i.e. the higher the minimum achievable inlet pressure.
Liquid quantities
Nominal operating-liquid flow rate
(with dry air extraction and with water at 15 °C [59 °F] as operating liquid)
0.65 l/min |
0.172 gal (US)/min 0.143 gal (UK)/min |
(0.039 m³/h) |
(1.38 ft³/h) |
Max. filling quantity for operating liquid at a standstill
0.200 l |
0.053 gal (US) 0.044 gal (UK) |
Repeated switching on of the pump-motor unit in the flooded state can result in damage.
Maximum permissible quantity of water entrained via the inlet connection
3.9 l/min |
1.03 gal (US)/min 0.858 gal (UK)/min |
If larger quantities can occur, a separator must be installed upstream on the inlet side.
Max. discharge pressure p2 max during vacuum operation:
110 kPa abs. |
16.0 psia |
This value applies, provided the rated operating-liquid flow rate is adhered to.
Max. discharge pressure (differential pressure) p2 max during compressor operation (at inlet pressure p1 = 101.3 bar abs. [14.7 psia]):
60 kPa |
8.70 psi |
This value applies, provided the rated operatingliquid flow rate is adhered to.
610.444430.40.000 |
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© Gardner Denver Deutschland GmbH |
Operating modes
4 Operating modes
The pump-motor unit can function in several different operating modes.
These differ in how the pump-motor unit is supplied with operating liquid:
Self-priming operation
Operation with operating-liquid feed:
–Non-automatic operation
–Automatic operation
4.1Self-priming operation
In this operating mode the pump-motor unit automatically sucks in the operating liquid. The operating-liquid flow rate is automatically adjusted.
See Fig. 4, Pg. 17.
4.2Operation with operating-liquid feed
In this operating mode the pump-motor unit DOES NOT automatically suck in the operating liquid.
A certain volume flow ("nominal operatingliquid flow rate") or pre-pressure must be set for the operating liquid.
Here the following additional distinctions are made:
Non-automatic operation
In this case the operating liquid feed is switched on and off manually with a stop valve.
See Fig. 6, Pg. 19.
Automatic operation
In this case the operating liquid feed is switched on and off by a solenoid valve. The solenoid valve is dependent on the motor operating mode:
Motor/pump-motor unit switched on: Valve open.
Motor/pump-motor unit switched off: Valve closed.
See Fig. 7, Pg. 19.
NOTICE
The following is dependent on the operating mode:
when and how the pump-motor unit must be filled with operating liquid the first time,
how the pump-motor unit is put into operation.
The specifications for this are contained in Chapter 6, "Installation", Pg. 11ff., and Chapter 7, "Commissioning", Pg. 16ff.
© Gardner Denver Deutschland GmbH |
9 / 32 |
610.444430.40.000 |
Transport and Handling
5 Transport and Handling
WARNING
Improper use of the machine can result in serious or even fatal injuries!
Have you read the safety precautions in Chapter 1, "Safety", Pg. 3 f.?
Otherwise you may not carry out any work with or on the machine!
WARNING
Danger from tipping or falling loads!
Prior to transport and handling make sure that all components are securely assembled and secure or remove all components the fasteners of which have been loosened!
CAUTION
Tipping or falling can lead to crushing, broken bones etc.!
Sharp edges can cause cuts!
Wear personal safety equipment (protective helmet, protective gloves, safety shoes) during transport!
Packing:
In case of a separate delivery, the pump-motor unit is packed in a carton.
In the case of a group delivery, the pumpmotor units are packed in cardboard boxes or screen boxes on pallets.
Manual handling:
WARNING
Danger from tipping or falling loads!
Do not hold the pump-motor unit on the capacitors or cable glands on the terminal box!
Handling by means of lifting equipment:
WARNING
Danger from tipping or falling loads!
When transporting with lifting equipment, observe the following basic rules:
The lifting capacity of lifting equipment and lifting gear must be at least equal to the unit's weight.
For the weight of the pump-motor unit, see Chapter 3.1, "Mechanical data",
Section "Weight", Pg. 7.
The pump-motor unit must be secured so that it cannot tip or fall.
Do not hook the pump-motor unit onto the capacitors or cable glands on the terminal box!
Do not stand or walk under suspended loads!
Use two lifting belts, of which one is routed under the interface between the motor housing and the vacuum pumps/compressor housing, and the other under the interface between the motor housing and the fan guard.
When transporting the pump-motor unit, make sure that attached fittings are not damaged.
WARNING
Danger from lifting heavy loads!
Manual handling of the unit is only permitted within the following limits:
max. 30 kg [max. 66 lbs] for men
max. 10 kg [max. 22 lbs] for women
max. 5 kg [max. 11 lbs] for pregnant women
For the weight of the pump-motor unit, see Chapter 3.1, "Mechanical data",
Section "Weight", Pg. 7.
For weights above the given values use suitable lifting appliances and handling equipment!
WARNING
Danger from tipping loads!
Be sure to observe the routing of the strap belts under the pump-motor unit, even if the motor is provided with attachment points such as transport eyes or eye bolts.
These are solely designed for the separate transport of the motor, however not for the different weight distribution that results for the mounted vacuum pump/mounted compressor, so that the unit could tip!
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© Gardner Denver Deutschland GmbH |
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