Elmo Rletschle L-BL2 User Manual

Edition: 12.2009 · 610.44444.40.000 Original operating instructions · English

Operating instructions L-BL2



2BL2 041 2BL2 061 2BL2 141 2BL2 251 2BL2 101 2BL2 281 2BL2 341

L-Serie

L-Series

Flüssigkeitsring

Liquid Ring

Contents

System design ..........................................................................................................................................3

1 Safety ..................................................................................................................................................4

1.1 Definitions .................................................................................................................................4

1.1.1 Safety alert symbol.......................................................................................................4

1.1.2 Signal words.................................................................................................................4

1.2 General safety precautions .......................................................................................................4

1.3 Residual risks............................................................................................................................6

2 Intended Use .......................................................................................................................................7

3 Technical Data ....................................................................................................................................8

3.1 Mechanical data ........................................................................................................................8

3.2 Electrical data..........................................................................................................................10

3.3 Operating conditions ...............................................................................................................10

4 Transport and Handling.....................................................................................................................11

5 Installation .........................................................................................................................................12

5.1 Installation ...............................................................................................................................12

5.2 Electrical connection (motor) ..................................................................................................14

5.3 Filling.......................................................................................................................................17

5.4 Connection of pipes/hoses......................................................................................................18

5.4.1 Inlet connection ..........................................................................................................18

5.4.2 Exhaust-air connection...............................................................................................19

5.5 Accessories.............................................................................................................................19

6 Commissioning..................................................................................................................................20

6.1 Preparation and start-up .........................................................................................................20

6.2 Shut-down ...............................................................................................................................20

7 Operation...........................................................................................................................................21

7.1 Start-up and shut-down...........................................................................................................21

7.2 Operation within the process ..................................................................................................21

7.2.1 Loss of operating liquid ..............................................................................................21

7.2.2 Increase in operating liquid ........................................................................................22

8 Shutting Down and Longer Standstill ................................................................................................23

8.1 Draining...................................................................................................................................23

8.2 Preparing for longer shut-down...............................................................................................23

8.3 Storage conditions ..................................................................................................................24

9 Servicing............................................................................................................................................25

9.1 Maintenance............................................................................................................................26

9.2 Repairs/troubleshooting ..........................................................................................................29

9.3 Service/After-sales service......................................................................................................33

9.4 Decontamination and Declaration of Clearance .....................................................................33

10 Disposal.............................................................................................................................................33

EU declaration of conformity ..................................................................................................................34

Form for statement on safety .................................................................................................................35

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.

System design

007

System design

A

D

B

C 030 027

096 001

025 079 058

095

005

F 052

057 010

012

023 085 086

066

065

032 031

039

H

043 064

G

080

019

040 041

025 060

K

037

007 025 060

L_300

E

J

J K

E

2BL2 141

Fig. 1: System design

A Inlet connection B Exhaust-air connection C Cable inlet D Installed unit (L-BV7 pump) E Draining installed unit F Draining cooler G 3-way valve (only 2BL2 041 to 2BL2 141) H Screw-in connecting sleeve J Operating liquid hole K Cavitation protection hole

001 U-separator 005 Drain opening 007 Filling opening and connection for drain

controller

010 Fill level indicator 012 Screw 019 Nut 023 Nut 025 Connection for supply or drain controller

2BL2 251, 281, 341

027 Water or air water cooler 030 Screw 031 Condensation cooler 032 Screw 037 Connecting piece 039 Intake hose with check valve 040 Injection water pipe 041 Condensate pipe 043 Operating liquid pipe 052 Rating plate 057 Screw 058 Protective screen 060 Screw 064 Cover plate 065 Cord grip

066 Screw 079 Restrictor sleeve for water pipe 080 Restrictor sleeve for air pipe 095 Water filter 096 Air filter

Safety

1 Safety

1.1 Definitions

To point out dangers and important information, the following signal words and symbols are used in these operating instructions:

1.1.1 Safety alert symbol

The safety alert symbol

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.

1.1.2 Signal words DANGER

The signal words are located in

the safety precautions in the

WARNING

CAUTION

NOTICE

NOTE

highlighted heading field. They follow a certain hierarchy and indicate (in conjunction with the safety alert symbol, see

Chapter 1.1.1) the seriousness of

the danger and the type of warning.

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



is located in the

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.

1.2 General safety precautions



WARNING

Improper use of the system can result in serious or even fatal injuries!

These operating instructions

 must have been completely read and

understood before the start of any work with or on the system,

 must be strictly observed,  must be available at the system operating

location.



WARNING

Improper use of the system can result in serious or even fatal injuries!

Only operate the system

 for the purposes indicated under "Intended

Use"!

 with fluids specified under "Proper use"!  with the values indicated under 'Technical

Data'!



WARNING

Danger of injuries.

Indicates a potentially hazardous situation, that

may result in minor or moderate injury if the

corresponding measures are not taken.

610.44444.40.000 4 / 36 © Gardner Denver Deutschland GmbH

Improper use of the system can result in serious or even fatal injuries!!

All work on and with the system (transport, installation, commissioning, shut-down, maintenance, disposal) may only be carried

out by trained, reliable personnel!

Safety



WARNING

When working on the system, there is danger of injury, e.g. due to cutting/cutting off, crushing and burns!

During all work on and with the system (transport, installation, operation, shut-down,

maintenance, disposal) wear personal safety

equipment (safety helmet, protective gloves, safety shoes)!



WARNING

Hair and clothing can be pulled into the system or caught and wound up by moving parts!

Do not wear long, loose hair or loose-fitting clothes!

Use a hair net!



DANGER

Electrical danger!

Before beginning work on the system, the following measures must be carried out:

 Deenergise.  Secure against being switched on again.  Determine whether deenergised.  Ground and short-circuit.  Cover or block off adjacent energised parts.



DANGER

Electrical danger!

Work on electrical installations may be carried out by trained and authorised electricians only!



DANGER

Electrical danger!

Do not open the motor terminal box unless absence of electricity has been ensured!



WARNING

Danger from vacuum! Danger due to escaping fluid!

Relieve pressure or vacuum before beginning to work on the system!

Make sure that pipes/hoses and vessels to be opened have been relieved of pressure or vacuum and that no fluids might leak out before loosening any connectors and fasteners.



WARNING

Danger from vacuum! Danger due to escaping fluid!

Carry out the following tasks prior to commissioning, after every disassembly and reassembly and at regular intervals:

 Check pipe/hose connections, pipes/hoses

and vessels for sufficient strength, tightness and secure fixing!

 Check fasteners for secure seating!



WARNING

Danger from vacuum!

Do not operate the unit unless the pipe / hose has been fitted to the inlet connection!

In particular, do not look into the inlet connection or move your eyes in front of the inlet connection opening if the system might start up and generate a vacuum!



WARNING

Danger due to rotating parts!

Only operate the system when fully assembled:

 with hoses connected to inlet and discharge

connection as well as to operating liquid connection of installed unit

 with the pipes/hoses and fasteners of the

operating-liquid circuit mounted

 with cover plate and water cooler of

separator mounted.

Do not disassemble unless the system has been shut down and come to a complete standstill!

Consider that the system has a certain run-out!

Safety



WARNING

Danger due to rotating parts!

Do not reach into the installed unit through opened intake or discharge connection!

Do not insert objects into the installed unit through the openings!



WARNING

Danger of burns/scalding from hot fluids and hot surfaces of the installed unit!

Allow to cool after shut-down!

CAUTION

Danger from excessive pressure! Danger from system clogging!

Dirt can enter the system through the exhaustair connection! Clogging is possible!

Do not remove the protective cap from the discharge connection!

NOTICE

The pumped gases/vapours are expelled into the surrounding area via the exhaust-air connection. They are not directed through a pipe or a hose.

If delivery-side piping is desired:

Enquiry with Service is absolutely necessary!



WARNING

Danger from caustic or toxic fluids!

In case of corrosive of toxic fluids (operating liquid, pumped gases/vapours):

Enquiry with Service is absolutely necessary!

Wear appropriate personal protective equipment (protective gloves, safety goggles, respiratory protection) when working on or near the system.

If appropriate, attach appropriate warning sign(s) to the system, e.g. 'Warning! Corrosive materials!', 'Warning! Harmful or irritant material!' or 'Warning! Toxic material'.

NOTE

For the system design, see Fig. 1, Pg. 3. The item numbers (Item) specified in the text refer to this illustration.

1.3 Residual risks



WARNING

Danger zone:

Not surfaces of installed unit.

Hazard:

Burns/scalding possible.

Protective measures:

Attach warning sign "Warning! Hot surface!" .



WARNING

Danger zone:

External fan of installed unit.

Hazard:

Long, open hair may be drawn into the external fan of the installed unit with the cover plate and protective screen of the system removed!

Protective measures:

Wear hair net!

610.44444.40.000 6 / 36 © Gardner Denver Deutschland GmbH

Intended Use

2 Intended Use

These operating instructions

 apply to vacuum pumps of the L-BL2 series,

models 2BL2 041, 2BL2 061, 2BL2 101, 2BL2 141, 2BL2 251, 2BL2 281 and 2BL2 341

 contain instructions bearing on transport and

handling, installation, commissioning, operation, shut-down, storage, servicing and disposal of the L-BL2,

 must be completely read and understood by

all operating and servicing personnel before beginning to work with or on the L-BL2,

 must be strictly observed,  must be available at the site of operation of

the L-BL2.

 exist in the following designs:

– 2BL2 041 – 2BL2 061 – 2BL2 101 – 2BL2 141 – 2BL2 251 – 2BL2 281 – 2BL2 341

 are oil-free and non-contacting units.  are air-cooled units.  are intended for industrial applications.  are designed for continuous operation.

When operating the L-BL2, the limits listed in Chapter 3, "Technical Data", Pg. 8 ff. must always be complied with.

Foreseeable Misuse

About the operating and servicing personnel of the L-BL2:

 These persons must be trained and

authorised for the work to be carried out.

 Work on electrical installations may be carried

out by trained and authorised electricians only.

The L-BL2s

 are systems for generating a vacuum.  contain a liquid-ring vacuum pump of the L-

BV7 series, model 2BV7 or L-BV5, model 2BV5 (in the following referred to as "unit"), which is installed in a liquid separator (in the following referred to as "separator").

 are used to extract, transport and compress

the following pumped gases/vapours:

– all dry and moist gases,

which are not explosive, aggressive or toxic,

– preferably air or air/vapor mixtures. – For gases/vapours that differ, an enquiry

must be made with the Service Department.

 are designed for operation with the following

operating liquids:

– with a pH of 6 to 9,

which is free of solid materials (such as sand),

– usually normal tap water. – If the pH values or operating liquids differ,

it is necessary to contact the Service Department.

 release gases with the following properties

into the environment during operation:

– discharge temperature  ambient

temperature,

– discharge pressure  ambient pressure, – absolutely clean and dust-free.

It is prohibited

 to use the L-BL2 in non-industrial applications,

unless the necessary protection is provided on the system, e.g. guards suitable for children's fingers,

 to use the device in rooms in which explosive

gases can occur if the S _200 is not expressly intended for this purpose,

 to extract, to deliver and to compress

explosive, flammable, corrosive or toxic fluids, unless the S _200 is specifically designed for this purpose,

 to operate the L-BL2 with values other than

those specified in Chapter 3, "Technical Data", Pg. 8 ff.

Any unauthorised modifications of the L-BL2 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 authorised by the manufacturer (enquiry with the Service Department necessary).

This especially applies to the unit installed in the L-BL2 (liquid-ring vacuum pump of the L-BV7 series, model 2BV7 or L-BV5, model 2BV5): The installed unit may be neither removed nor dismantled! any maintenance and repair work, such as replacing worn or defective components, may only be carried out by companies authorised by the manufacturer (please contact the Service Department).

Technical Data

3 Technical Data

3.1 Mechanical data

Weight

(when not filled with water)

Type approx. [kg] approx. [lbs]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

Weight

Type approx. [kg] approx. [lbs]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

Filling capacity of separator

Filling capacity for operating

Type

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

(Normal tap water should usually be used as operating liquid.)

38 83.8

55 121

68 150

105 232

195 430

210 463

225 496

(when filled with water)

61 134

97 214

110 243

161 355

290 640

305 673

320 706

liquid

max.

[l]

max.

[gal(US)]

max.

[gal(UK)]

23 6.08 5.06

42 11.1 9.24

56 14.8 12.3

94 24.8 20.7

Filling capacity for antiliming

agent

Type approx. [kg] approx. [lbs]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

2 4.41

4 8.82

5 11

8 17.6

(Use pure granulated citric acid as antiliming agent. The specified filling quantities for citric acid refer to the medium filling of the separator with operating liquid.)

Filling quantity of installed unit

Filling quantity for anti-corrosive

agent

Type [l] [gal (US)] [gal (UK)]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

0.6 0.159 0.132

1.0 0.264 0.220

5.5 1.453 1.210

6.3 1.664 1.386

7.0 1.849 1.540

(To ensure sufficient protection, the entire interior of the installed unit must be filled with anticorrosive agent. Use only anti-corrosive agent based on ethylene glycol without additives, e.g. Antifrogen from Hoechst!)

Filling quantity for antiliming

liquid

Type [l] [gal (US)] [gal (UK)]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

0.6 0.159 0.132

1.0 0.264 0.220

5.5 1.453 1.210

6.3 1.664 1.386

7.0 1.849 1.540

(Use 10 % ethanoic acid as antiliming liquid.)

610.44444.40.000 8 / 36 © Gardner Denver Deutschland GmbH

Technical Data

Minimum distances for heat dissipation

Minimum distance A Type [m] [ft]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

(The dimensions are shown in Fig. 3, Pg. 13.)

≥ 0.5 ≥ 1.64

≥ 0.7 ≥ 2.30

≥ 0.8 ≥ 2.60

≥ 1.0 ≥ 3.28

Minimum distance B Type [m] [ft]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

(The dimensions are shown in Fig. 3, Pg. 13.)

≥ 1.4 ≥ 4.59

≥ 1.6 ≥ 5.25

≥ 1.8 ≥ 5.90

≥ 1.9 ≥ 6.23

Type Minimum distance C [m] [ft]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

≥ 0.4 ≥ 1.31

(The dimensions are shown in Fig. 3, Pg. 13.)

Spacing of securing eyes

Distance D Type [mm] [inches]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

(The dimensions are shown in Fig. 3, Pg. 13.)

360 14.2

495 19.5

585 23

715 28.1

Distance E Type [mm] [inches]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

(The dimensions are shown in Fig. 3, Pg. 13.)

345 13.6

450 17.7

570 22.4

755 29.7

Distance F Type [mm] [inches]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

--- ---

225 8.9

285 11.2

377 14.8

(The dimensions are shown in Fig. 3, Pg. 11.)

Noise level

1

Measuring-surface sound-pressure level as per EN ISO 3744, measured at 1 m [3.28 ft] distance with moderate throttling (100 mbar abs. [1.45 psia]) and connected lines, tolerance  3 dB (A).

1-m measuring-surface sound

pressure level L [dB (A)]

Type at 50 Hz: at 60 Hz:

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

70

74

77

74

76

73

Operating speed

See rating plate.

Tightening torques

for screws (Fig. 1, Pg. 3)

Pos.: Thread [Nm] [ft lbs]

005 2.7 - 3.3 1.99 - 2.43

007 2.7 - 3.3 1.99 - 2.43

012 E-JOT4 0.72 - 0.88 0.53 - 0.65

Technical Data

Tightening torques

for screws (Fig. 1, Pg. 3)

Pos.: Thread [Nm] [ft lbs]

019 M8 13.5 - 16.5 9.96 - 12.2

019 M10 21.6 - 26.4 15.9 - 19.5

023 M8 8.1 - 9.9 6.0 - 7.3

023 M10 13.5 - 16.5 9.96 - 12.2

025 2.7 - 3.3 1.99 - 2.43

030 M6/M8 8.1 - 9.9 6.0 - 7.3

032 E-JOT5 1.1 - 1.3 0.8 - 0.96

032 M6 4.5 - 5.5 3.3 - 4.05

057 St 4,2 2.7 - 3.3 1.99 - 2.43

060 M6 2.7 - 3.3 1.99 - 2.43

066 E-JOT4 0.72 - 0.88 0.53 - 0.65

E

G¼

2.25 - 2.75 1.66 - 2.0

E G⅜ 6.3 - 7.7 4.65 - 5.68

Clamps 2.7 - 3.3 1.99 - 2.43

The values specified here for tightening torques apply unless other values are indicated.

Tightening torques for screw

connections (in general)

Thread

M4

M5

M6

M8

M10

M12

M16

Property

classes

[Nm] [ft lbs]

5.6 1.26 - 1.54 0.93 - 1.14

5.6 2.7 - 3.3 1.99 - 2.43

8.8 7.2 - 8.8 5.3 - 6.5

8.8 18 - 22 13.3 - 16.2

8.8 36 - 44 26.6 - 32.5

8.8 63 - 77 46.5 - 56.8

5.6 90 - 110 66.4 - 81.1

(These values apply to screw connections with the exception of electrical connections.)

Tightening torques for electrical

connections (terminal board-

connections)

Thread [Nm] [ft lbs]

M4

M5

M6

M8

M10

0.9 - 1.1 0.66 - 0.81

2.0 - 2.4 1.47 - 1.77

2.7 - 3.3 1.99 - 2.43

6.3 - 7.7 4.65 - 5.68

10 - 12 7.34 - 8.85

These values for electrical connections apply to all terminal board connections with the exception of terminal strips.)

3.2 Electrical data

See rating plate on separator water cooler.

3.3 Operating conditions

Default conditions

Ambient temperature

Ambient pressure

Air saturation

+20 °C +68 °F

101.3 kPa 14.7 psi

50 %

Temperatures

Temperatures of pumped gases/vapours

Intake temperature

Delivery temperature

max. +60 °C max. +140 °F

 Ambient temperature

Temperature of operating liquid

max. +60 °C max. +140 °F

Ambient temperature

max. +40 °C max. +104 °F

min. +10 °C min. +50 °F

With ambient temperature < 10 °C (< 50 °F): Observe yellow adhesive label on cover plate. Add ethylene glycol to operating liquid in separator accordingly.

Pressures

Inlet pressure

min. 5 kPa abs. min. 0.725 psia

max. 80 kPa abs. max. 11.6 psia

At inlet pressures > 35 kPa abs. [5.08 psia], the share of water vapour in the escaping gases may be slightly above that of the gases sucked in. The resulting water loss can automatically be compensated by a feed regulator (see Chapter 5.5, "Accessories", Pg. 19).

It is prohibited to connect piping to the discharge side of the system!

Discharge pressure

approx. 101.3 kPa approx. 14.7 psi

 Ambient pressure

4 Transport and Handling



WARNING

Improper use of the system can result in serious or even fatal injuries!!

Have you read the safety precautions in Chapter 1, "Safety", Pg. 4 f.? Otherwise you may not carry out any work with or on the system!



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!

Manual handling:

Transport and Handling

Transport with a crane and lifting belts, with forklift truck or with low-lift platform truck.



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 system, see Chapter 3.1, "Mechanical data", Section "Weight", Pg. 8.

Above these limits, suitable lifting equipment and/or means of transport must be used!

Transport with lifting equipment:



WARNING

Danger from tipping or falling loads!

When transporting with lifting equipment, observe the following basic rules:

 Use only suitable lifting gear (e.g. belts or

ropes) and means of transport (e.g. forklift truck, low-lift platform truck, crane).

 The lifting capacity of lifting equipment and

lifting gear must be at least equal to the system's weight. For the weight of the system, see Chapter 3.1, "Mechanical data", Section "Weight", Pg. 8.

 The system must be secured so that it

cannot tip or fall.

 Do not stand or walk under suspended

loads!

Fig. 2: Attachment points

Attach the strap belts as shown in Fig. 2, Pg. 11:

 Use two lifting belts routed along below the

system.

 The lifting belts should be securely seated in

the recesses shaped into the lower edges (two on each of the long sides) of the system so as to prevent the system from slipping out of them.

 The lifting belts must be sufficiently long

(spread angle smaller than 90°).

 Make sure that no damage is caused to any

attached fittings.