background image

Make sure that the installation space or location is vented such
that a sufficient cooling of the vacuum pump is warranted

CAUTION

_ac

During operation the surface of the vacuum pump may reach tem-
peratures of more than 70 °C.

Risk of burns!

Make sure that the vacuum pump will not be touched inadver-
tently during operation, provide a guard if appropriate

Suction Connection

CAUTION

_a

Intruding foreign objects or liquids can destroy the vacuum pump.

In case the inlet gas can contain dust or other foreign solid particles:

Make sure that the suction line fits to the suction connection (a) of
the vacuum pump

Make sure that the line size of the suction line over the entire
length is at least as large as the suction connection (a) of the
vacuum pump

In case the length of the suction line exceeds 2 m it is prudent to use
larger line sizes in order to avoid a loss of efficiency and an overload of
the vacuum pump. Seek advice from your Busch representative!

In case the vacuum shall be maintained after shutdown of the vacuum
pump:

Provide a manual or automatic operated valve (= non-return
valve) in the suction line

Make sure that the suction line does not contain foreign objects,
e.g. welding scales

Gas Discharge

Version with top liquid separator:

The discharge piping should not exceed an elevation more than
600 mm above the discharge flange (c) of the pump housing until the
liquid is separated. Too high an elevation will cause back pressure and
possible drive motor overload.

The discharged gas must flow without obstruction. It is not permitted
to shut off or throttle the discharge line or to use it as a pressurised
air source.

Make sure that the discharge line fits to the gas discharge (c) of
the vacuum pump

Make sure that the line size of the discharge line over the entire
length is at least as large as the gas discharge (c) of the vacuum
pump

In case the length of the discharge line exceeds 2 m it is prudent to use
larger line sizes in order to avoid a loss of efficiency and an overload of
the vacuum pump. Seek advice from your Busch representative!

Make sure that the discharge line either slopes away from the
vacuum pump or provide a liquid separator or a drip leg with a
drain cock, so that no liquids can back up into the vacuum pump

Electrical Connection / Controls

Make sure that the stipulations acc. to the EMC-Directive
2004/108/EC and Low-Voltage-Directive 2006/95/EC as well as
the EN-standards, electrical and occupational safety directives and
the local or national regulations, respectively, are complied with
(this is the responsibility of the designer of the machinery into
which the vacuum pump is to be incorporated;

Ú

page 16: note in

the EC-Declaration of Conformity).

Make sure that the power supply for the drive motor is compatible
with the data on the nameplate of the drive motor

Make sure that an overload protection according to EN 60204-1 is
provided for the drive motor

Make sure that the drive of the vacuum pump will not be affected
by electric or electromagnetic disturbance from the mains; if neces-
sary seek advice from the Busch service

In case of mobile installation:

Provide the electrical connection with grommets that serve as
strain-relief

Installation

Mounting

Make sure that the Installation Prerequisites (

Ú

page 5) are com-

plied with

Set down or mount the vacuum pump at its location

Make sure that the base plate is not bent and that the flexible cou-
pling is properly aligned

Note

: A misaligned coupling leads to increased loads onto the cou-

pling and the bearings and hence to premature failure of the
vacuum pump.

Mounting the V-belt Drive

Mount the v-belt drive

Checking the Alignment of the Pulleys

Make sure that the v-belt drive is properly aligned:

Proper alignment: both pulleys / pulley packages in one plane

Improper alignment: axial offset

Improper alignment: pulleys / pulley packages angled

Adjust the v-belt tension after the installation of the operating liq-
uid supply system (the vacuum pump shall not run dry)

LA 0053-1111 A, LB 0063-1011 A

Installation and Commissioning

0870150638 / 091222

page 8

Содержание DOLPHIN LA 0053-0143 A

Страница 1: ...0870150638 A0001 26 10 2021 Original instructions DOLPHIN LA 0053 1111 A DOLPHIN LB 0063 1011 A ...

Страница 2: ... Dismantling 11 Reassembly 11 Overhaul 12 Removal from Service 12 Temporary Removal from Service 12 Recommissioning 12 Dismantling and Disposal 12 Spare Parts 12 Troubleshooting 13 EU Declaration of Conformity 16 Sectional Drawings and Spare Parts Lists 18 Technical Data 26 Preface LA 0053 1111 A LB 0063 1011 A 0870150638 page 2 Preface Congratulations on your purchase of the Busch vacuum pump Wit...

Страница 3: ...n drive end the liquid ring moves away from the hub making space for gas to be drawn in through the intake port e approx from the 11 o clock to the 8 o clock position The chamber surrounded by the hub the liquid ring and two adjacent impeller blades achieves its maximum volume in the 6 o clock position As the impeller continues to rotate the liquid ring moves closer to the impeller hub the volume ...

Страница 4: ...In case the vacuum pump is packed in a cardboard box with inflated cushions Remove the inflated cushions from the box In case the vacuum pump is in a cardboard box cushioned with rolled corrugated cardboard Remove the corrugated cardboard from the box In case the vacuum pump is laid in foam Remove the foam In case the vacuum pump is bolted to a pallet or a base plate Remove the bolting between the...

Страница 5: ...control the level in the operating liquid separator and if appropri ate cool the operating liquid to a temperature at which no cavita tion will occur Operating the vacuum pump close to its ultimate pressure requires large quantities of cool operating liquid In order to avoid cavitation it is usually more prudent to limit the minimum working pressure The pressure on the suction side of the vacuum p...

Страница 6: ...led with too much operating liquid With a manual operating liquid shut off valve it is important to open valve immediately after starting the motor and to close the valve immediately before switching the motor off Version with lateral liquid separator Version with top liquid separator Circuit diagram Alternative tank with float valve Partial Recovery The operating liquid enters and leaves the vacu...

Страница 7: ...e vacuum pump with the housing full of water which could overload the vacuum pump and the drive motor The heat exchanger W must be capable of removing approx 85 per cent of the drive power and possibly appearing condensation heat Version with lateral liquid separator Version with top liquid separator Circuit diagram Mounting Position and Space Make sure that the following ambient conditions will b...

Страница 8: ...rger line sizes in order to avoid a loss of efficiency and an overload of the vacuum pump Seek advice from your Busch representative Make sure that the discharge line either slopes away from the vacuum pump or provide a liquid separator or a drip leg with a drain cock so that no liquids can back up into the vacuum pump Electrical Connection Controls Make sure that the stipulations acc to the EMC D...

Страница 9: ...veral days of operation Check the tension again Insufficient tension is often evidenced by slippling squealing at start up Recording of Operational Parameters As soon as the vacuum pump is operated under normal operating conditions Measure the drive motor current and record it as reference for fu ture maintenance and troubleshooting work Operation Notes Use The vacuum pump is intended for the suct...

Страница 10: ...e operating liquid shall reach the middle of the shaft only when the vacuum pump is to be started Make sure that the operating liquid reaches the middle of the shaft when the vacuum pump is to be started Pressure Control At very low pressures and sufficiently high temperatures the operating liquid can locally transfer into the vapour phase creating bubbles within the operating liquid As the pressu...

Страница 11: ...e it See the sectional drawings for cross reference Series 1 Gland packing or cartridge mechanical seal Series 2 3 Mechanical seal Dismantling Disconnect from electrical supply and process piping Drain as much operating liquid from the vacuum pump as possible Stand the vacuum pump vertically with the drive end upwards Mark the castings to ensure the correct reassembly and alignment Remove the mani...

Страница 12: ...up except for the ball bearings mechanical seals and bearing caps The abutment ring enables the impellers to be spaced equally from the plates The distance from the shoulder on the shaft to the bearing location in the housing has to be found This is done with the use of a depth gauge as shown below The abutment width is determined as the mean value of A when the shaft is moved in both directions l...

Страница 13: ...cal seal 433 0 Gas or liquid channels are blocked Dismantle and clean the vacuum pump In case a screen is installed in the suction connection a The screen in the suction connection a is partially clogged Clean the screen If cleaning is required too frequently install a filter upstream The filter on the suction connection a is par tially clogged Clean or replace the inlet air filter respectively Pa...

Страница 14: ...after commission ing Loose connection s in the drive motor termi nal box Not all drive motor coils are properly con nected The drive motor operates on two phases only Check the proper connection of the wires against the connection diagram Tighten or replace loose connections The operating liquid level is too high Adjust the regulating valves Density or viscosity of the operating liquid too high Th...

Страница 15: ...e permitted ambient temperatures Temperature of the inlet gas too high Observe the permitted temperatures for the inlet gas Insufficient gas transfer Mains frequency or voltage outside tolerance range Provide a more stable power supply Partial clogging of filters or screens Partial clogging in the suction discharge or pressure line Remove the clogging Long suction discharge or pressure line with t...

Страница 16: ...rd zones being reached by the upper and lower limbs EN 1012 1 2010 EN 1012 2 1996 A1 2009 Compressors and vacuum pumps Safety requirements Part 1 and Part 2 EN ISO 2151 2008 Acoustics Noise test code for compressors and vacuum pumps Engineering method grade 2 EN 60204 1 2018 Safety of machinery Electrical equipment of machines Part 1 General re quirements EN IEC 61000 6 2 2019 Electromagnetic comp...

Страница 17: ...ery Safety distances to prevent hazard zones being reached by the upper and lower limbs BS EN 1012 1 2010 BS EN 1012 2 1996 A1 2009 Compressors and vacuum pumps Safety requirements Air compressors and vacuum pumps BS EN ISO 2151 2008 Acoustics Noise test code for compressors and vacuum pumps Engineering method grade 2 BS EN 60204 1 2018 Safety of machinery Electrical equipment of machines General ...

Страница 18: ...Sectional Drawings and Spare Parts Lists LA 0053 1111 A LB 0063 1011 A Sectional Drawings and Spare Parts Lists 0870150638 091222 page 17 ...

Страница 19: ...chanical seal 421 Oil seal 400 5 End casing gasket 400 2 Bearing seal housing gasket 400 Impeller casing gasket 360 1 N D E bearing cap 360 N D bearing cap 357 Bearing seal housing 350 Bearing housing 320 Bearing 311 Guide ring 230 1 2nd stage impeller 230 1st stage impeller 210 Shaft 137 4 Interplate 137 1 Discharge end plate 110 Impeller casing 107 End casing LA 0053 1111 A LB 0063 1011 A Sectio...

Страница 20: ...LA 0053 1111 A LB 0063 1011 A Sectional Drawings and Spare Parts Lists 0870150638 091222 page 19 ...

Страница 21: ...hanical seal 400 5 End casing gasket 400 2 Bearing seal housing gasket 400 Impeller casing gasket 360 1 N D E bearing cap 360 D E bearing cap 357 Bearing seal housing 320 Bearing 230 1 2nd stage impeller 230 1st stage impeller 210 Shaft 147 Crossoverpipe 140 Joint intermediate plate 137 4 Discharge side plate 137 3 Suction inter plate 137 2 Discharge inter plate 137 1 Suction side plate 110 1 2nd ...

Страница 22: ...LA 0053 1111 A LB 0063 1011 A Sectional Drawings and Spare Parts Lists 0870150638 091222 page 21 ...

Страница 23: ...3 Mechanical seal 421 Oil seal 400 8 Crossover pipe gasket 400 5 End casing gasket 400 2 Bearing seal housing gasket 400 1 Inter plate gasket 400 Impeller casing gasket 360 1 N D E bearing cap 360 D E bearing cap 357 Bearing seal housing 320 Bearing 230 1 2nd stage impeller 230 1st stage impeller 210 Shaft 147 Crossover pipe 140 Joint intermediate plate 137 4 Discharge side plate 137 3 Suction int...

Страница 24: ...LA 0053 1111 A LB 0063 1011 A Sectional Drawings and Spare Parts Lists 0870150638 091222 page 23 ...

Страница 25: ... Oil seal 412 O ring 401 1 N D E bearing cap gasket 401 D E bearing cap gasket 400 8 Manifold pipe gasket 400 5 End casing gasket 400 2 Seal plate gasket 400 Impeller casing gasket 360 3 Bearing cap N D E 360 2 Bearing cap D E 360 1 Bearing cap N D E 360 Bearing cap D E 350 Bearing housing 322 Bearing D E 321 Bearing N D E 230 Impeller 210 Shaft 147 1 Manifold 137 4 Side plate N D E 137 1 Side pla...

Страница 26: ...35 76 660 8 5 50 45 980 1510 50 75 735 1850 78 60 75 1150 1694 77 60 90 880 2265 79 60 55 880 1555 50 75 735 2355 78 50 75 980 1720 60 110 880 2600 79 60 90 1150 2000 77 50 90 735 2810 78 50 55 735 2000 78 60 150 880 3170 79 60 90 880 2325 79 75 465 2680 50 75 735 2490 78 90 600 3560 60 110 880 3080 79 110 650 3750 50 90 735 2860 78 132 700 3915 60 150 880 3210 79 90 465 3380 50 110 735 3080 78 11...

Страница 27: ......

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