Oerlikon Leybold Vacuum TRIVAC NT16 Скачать руководство пользователя страница 16 | Manualshive

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16

130002780_002_A0 - 12/2008 - © Oerlikon Leybold Vacuum

Description

(position I). The gas ballast stops condensation of vapours in the pump
chamber up to the limit of water vapour tolerance as specified in the techni-
cal data for the pump.

The gas ballast valve is opened and closed in two steps by turning the gas
ballast knob (3.1/5) on the top.

To enable the TRIVAC NT to be used at intake pressures as high as 1,000
mbar, a special lubricating system was developed featuring force-lubrication
of the sliding bearings.

An oil pump (1.3/6) pumps the oil from the oil reservoir (1.3/5) into a pressu-
re-lubrication system which supplies oil to all bearing points (1.3/2). From
there the oil enters the pump chamber area (1.2/6) of the vacuum pump.

The oil pump is fitted in the front end plate on the coupling side of the pump
module. The oil suction line is placed low, resulting in a large usable oil reser-
voir.

The oil is separated from the gas in the TRIVAC NT in two steps as described
above. First, small droplets are coalesced into large drops in the internal
demister (1.2/11) fitted above the exhaust valve (1.2/10). Then, the large
drops fall into the oil reservoir as the exhaust gas is diverted by the inner
walls of the oil case. Thus a low loss of oil is obtained. This and the large
usable oil reservoir ensure long intervals between oil changes even at high
intake pressures.

The vacuum is maintained by the TRIVAC NT by an integrated hydropneuma-
tic anti-suckback valve (1.2/3) which is controlled via the oil pressure.

During operation of the TRIVAC NT the control piston (1.4/3) remains sealed
against a spring (1.4/2) by the oil pressure. The valve disc (1.4/6) of the anti-
suckback valve is held at the lower position by its own weight (valve open).
When the pump stops (because it has been switched off or because of a fail-
ure), the oil pressure drops and the spring (1.4/2) presses the control piston
(1.4/3) up. Thus a connection is provided between the oil case or the oil
reservoir (1.4/1) and the piston (1.4/4) of the anti-suckback valve. Due to the
pressure difference between the oil case and the intake port the oil presses
the piston (1.4/4) up and the valve plate (1.4/6) against the valve seat (1.4/5).
The quantity of oil in the oil reservoir (1.4/1) prevents the entry of air into the
intake port (1.2/1) at the beginning of this process.

After the oil has flowed out from the reservoir and when the valve plate rests
on the valve seat, air follows in, which vents the pump chamber and forces
the valve disc (1.4/6) against its seat. This effectively prevents backstreaming
of oil. The anti-suckback valve (1.2/3) operates independently of the opera-
ting mode of the pump, i.e. also with gas ballast.

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Содержание TRIVAC NT16

Страница 1: ... 3 i o the information provided in the enclosed Operating Instructions for the electric motor must be observed Part Numbers 140 220 140 221 140 222 140 223 140 224 140 225 140 226 140 227 140 231 140 232 140 233 140 234 140 235 140 241 140 330 140 331 140 332 140 333 140 334 140 335 140 336 140 337 140 338 140 339 140 340 140 341 140 346 140 347 ...

Страница 2: ...ering Data 22 1 5 Accessories 23 2 Transportation and Storage 24 3 Installation 25 3 1 Placement 25 3 2 Conforming Utilization 26 3 3 Connection to the System 28 3 4 Electrical Connections 30 4 Operation 32 4 1 ATEX Directive and Flammable Gases Dilution 32 4 2 Media Compatibility 33 4 3 Start Up 33 4 4 Operation 34 4 4 1 Pumping of Non Condensable Gases and Vapours 34 4 4 2 Pumping of Condensable...

Страница 3: ...5 4 Oil Change 40 5 5 Cleaning the Inlet Screen 42 5 6 Checking the Coupling 42 5 7 Replacing the Outer Shaft Seal 42 6 Troubleshooting 45 7 Wearing and Original Parts 47 8 Waste Disposal 48 EC Declaration of Conformity 49 EC Manufacturer s Declaration 50 Contents 3 130002780_002_A0 12 2008 Oerlikon Leybold Vacuum Page ...

Страница 4: ...useful information provided within these Operating Instructions The Oerlikon Leybold Vacuum TRIVAC NT 16 has been designed for safe and efficient operation when used properly and in accordance with these Operating Instructions It is the responsibility of the user to carefully read and strictly observe all safety precautions described in this section and throughout the Operating Instructions The TR...

Страница 5: ...tances the operating company is under the obligation to comply with the national and international safety regulations and guide lines Regarding the suitability of the TRIVAC NT pumps for special appli cations in which such gases respectively substances shall be pumped Oerlikon Leybold Vacuum should be consulted first The TRIVAC NT pumps including the accessories are fundamentally not suited for pu...

Страница 6: ...eased and an inert special lubricant like PFPE must be used Before operating the TRIVAC NT check first compatibility with the pumped media so as to avoid hazardous conditions during operation right from the start Observe all applicable safety standards and regulations After a mains power failure the pump will run up automatically again This also applies in the case of an emergency shutdown In orde...

Страница 7: ...llation of liquid separators upstream and downstream of the pump as well as the use of the gas ballast The exhaust line should be laid so that it slopes down and away from the pump so as to prevent condensate from backstreaming into the pump The entry of particles and fluids must be avoided under all circumstances Reactive or aggressive substances in the pump chamber may impair the operating oil o...

Страница 8: ...ed for the ignition category 3 inside and outside During normal operation there is no potential source of ignition inside and outside the pump but according to the 94 9 EC directive a rare malfunction may occur with potential sources of ignition In normal operation even if the pump is designed for flammable gases the operation procedure must ensure that the gases are not within their explosion lim...

Страница 9: ...e class in the case of PFPE pumps Suitability is restricted to T3 gases and vapours with an ignition temperature of over 200 C Explanation of the Symbols II Equipment Group II applies to all equipment for use in areas which can be endangered by an explosive atmosphere except in underground mining operations and their related above ground systems which can be endangered by mine gas and or combustib...

Страница 10: ... temperature in agreement with the following table Temperature class Maximum surface temperature C T1 450 T2 300 T3 200 T4 135 T5 100 T6 85 Pumps belonging to temperature class T4 with 50 Hz electric motors must only be operated with gases or vapours which exhibit an ignition temperature of over 135 C Pumps belonging to temperature class T3 with 60 Hz electric motors must only be operated with gas...

Страница 11: ...h types of oil which differ from the Leybold oil N 62 This is due to the frequently worse lubrication and cooling properties of such oil PFPE in particular Hot Exhaust Gases Due to the compression of the gases the pump will produce in the case of normal operation hot exhaust gases The exhaust gas temperatures do not exceed the maximum surface temperatures stated for the pump For this reason the ex...

Страница 12: ... exothermal chemical reaction Additional Safety Measures Overheating the pump can give rise to temperatures which exceed the maxi mum permitted surface temperature In order to prevent overheating installation and maintenance need to be done in accordance with the information provided in these Operating Instructions Especially the correct oil level needs to be maintained The oil must be exchanged w...

Страница 13: ...exceeding the concentration as found in the atmosphere and are also not suited for pumping of hazardous gases or extremely aggressive or corrosive media The inside the process gas side of this vacuum pump is so designed and rated that the occurrence of foreseeable ignition sources can be excluded during normal operation Provided the pump is operated within the limits of the parameters specified in...

Страница 14: ...d in the Directive 99 92 EG and the corresponding guide This information can be downloaded from the EU Internet site www europa eu int http europa eu int eur lex de com cnc 2003 com2003_0515de html http europa eu int eur lex en com cnc 2003 com2003_0515en html http europa eu int eur lex fr com cnc 2003 com2003_0515fr html Alternatively the guide of the EU commission on ATEX reference number COM 20...

Страница 15: ...lap noise of the oil in the pump which usually occurs when attaining the ultimate pressure is prevented by admitting a very small amount of air into the pump chamber The compressed gas in the pump chamber is ejected through the exhaust valve 1 2 10 The oil entrained in the gas is coarsely trapped in the internal demister 1 2 11 there the oil is also freed of mechanical impurities The gas leaves th...

Страница 16: ...of oil is obtained This and the large usable oil reservoir ensure long intervals between oil changes even at high intake pressures The vacuum is maintained by the TRIVAC NT by an integrated hydropneuma tic anti suckback valve 1 2 3 which is controlled via the oil pressure During operation of the TRIVAC NT the control piston 1 4 3 remains sealed against a spring 1 4 2 by the oil pressure The valve ...

Страница 17: ...ratures over 290 C toxic and cor rosive gases are released When handling PFPE keep it way from open fires Do not smoke in the work area Touch the inner sections of the pumps only while wearing clean gloves and use clean tools Do the necessary work in clean and dry rooms After having removed the pump from its packaging start it up as quickly as possible While working on the pump do not eat drink or...

Страница 18: ... agent in a sealed container and out of reach of children 1 2 Supplied Equipment The equipment supplied with the TRIVAC NT pump includes Pump with motor including initial filling of oil 1 centering ring 1 centering ring with dirt trap 2 clamping rings DN 25 KF As protection during shipment the connection ports are each blanked off by rubber diaphragms and supporting rings TRIVAC NT pumps with sing...

Страница 19: ...mineral oil mbar 5 10 3 with PFPE mbar 5 10 3 with DOT mbar 0 9 Water vapor tolerance 1 mbar 25 Water vapor capacity g h 1 305 476 Oil filling min max l 0 7 1 0 1 1 1 5 Noise level to DIN 45 635 dB A 54 without gas ballast at 50 Hz Admissible ambient temperature C 12 40 Motor rating W 550 660 Nominal speed min 1 1500 Type of protection IP 44 for single phase motor 55 for 3 phase motor Weight 3 ph ...

Страница 20: ... 120 60 5 0 66 10 0 140 221 140 222 140 223 E 110 002 712 200 240 380 415 50 10 0 55 3 1 4 0 1 5 1 6 90 World 140 224 140 225 3 ph 200 240 380 460 60 10 0 66 3 1 1 6 If the pump has been approved for use in explosion hazard areas then all electrical equipment like motor valves sensors for example is approved for operation in these areas the same conditions as for the pump apply Compliance with the...

Страница 21: ... gas ballast Ultimate total pressure without gas ballast Ultimate total pressure with gas ballast Pressure Pumping speed Fig 1 6 Dimensional drawing Dimensions in mm Type DN a b b1 c h h1 h2 l m n o NT 16 1 25 KF 32 175 137 135 243 227 261 540 280 140 132 NT 16 2 25 KF 32 175 137 135 243 227 261 504 280 140 132 NT 25 1 25 KF 32 175 137 207 243 227 261 604 280 140 132 NT 25 2 25 KF 32 175 137 207 2...

Страница 22: ...225 TRIVAC NT 25 1 phase world motor filling with N62 140 330 1 phase EU US motor filling with N62 140 336 1 phase EU US motor filling with ANDEROL 555 140 337 1 phase EU US motor filling with PFPE 140 338 1 phase EU US motor filling with DOT 4 140 339 1 phase EU US motor filling with RCF E 68N 140 340 1 phase US Japan motor filling with N62 140 341 3 phase world motor filling with N62 140 331 3 p...

Страница 23: ... facility AR M Oil suction facility AR V controlled by solenoid valve Dust filter FS 8 16 Dust separator AS 8 16 Mechanical oil filter OF 4 25 Chemical oil filter CF 4 25 Chemical oil filter with safety isolation valve CF 4 25 Exhaust filter drain tap Oil drain tap M 16 x 1 5 vacuum tight Oil drain kit Inlet flange horizontal Exhaust flange horizontal Oil pressure switch with adapter Adapter set f...

Страница 24: ...urpose also use the recommended type of lifting device Before putting a pump into operation once more it should be stored in a dry place preferably at room temperature 20 C Before the pump is shelved it must be properly disconnected from the vacuum system purged with dry nitrogen and the oil should be changed too The inlets and outlets of the pump must be sealed with the shipping seals which are p...

Страница 25: ...gas atmospheres Part 14 and EN 60079 17 Electrical apparatus for explosive gas atmospheres Part 17 3 1 Placement Pumps marked as II i 3G IIC T4 50 Hz 60 Hz X are not suited for installation in the explosion hazard areas Please note the change as to the Atex temperature class in the case of PFPE pumps Suitability is restricted to T3 gases and vapours with an ignition temperature of over 200 C Pumps...

Страница 26: ...es of dust Provide corresponding protection facilities The standard pump is not suited for pumping of hazardous gases or vapours When cleaning a system in which a TRIVAC pump has been integrated all parts in contact with the medium need to be compatible with the cleaning agent so as to prevent a chemical reaction Residues of the cleaning agent within the pump must be avoided Our technical sales de...

Страница 27: ...sive atmospheres Part 1 Basic method and requirements And based on this assessment the ignition sources listed in the following which may occur during operation of the pump were determined Potential ignition sources Remarks Hot surfaces Inside and outside due to gas compression vane friction etc Hot gases Are produced within the pump and ejected at the exhaust Mechanical sparks Will not occur duri...

Страница 28: ...intake and exhaust flanges for vertical connection of the connecting lines It can be converted into horizontal connection To do so remove the flanges and mount the accessories for horizontal connection Connect the intake and exhaust lines with a centering ring and a clamping ring each Use the centering ring with dirt trap for the intake port Connect the intake and exhaust line using anti vibration...

Страница 29: ...sate trap The exhaust gases from the vacuum pump must be safely led away and subjected to post treatment as required In order to reduce the emission of oil vapours we recommend the installation of an additional exhaust filter Oerlikon Leybold Vacuum accessory Depending on the type of application or the kind of pumped media the corresponding regulations and information sheets must be observed The p...

Страница 30: ... arrangements Pump with Single Phase AC Motor The world motor is delivered for connection to 200 to 240 V Change the voltage range if it is to be connected to 100 to 120 V To do so unscrew the plug at the motor terminal box using a screwdriver Change the switch set ting Screw the plug back in We recommend to note the changed setting on the terminal box The pump can be damaged if it is connected wi...

Страница 31: ...ey must be connected via the appropriate cable and a suitable motor protection switch Set the switch in accordance with the rating on the motor nameplate Fig 3 3 shows the connection for pumps with 230 400 V 50 Hz motors Please also observe the motor wiring diagram in the junction box and the information given on the nameplate of the motor After connecting the motor and after every time you alter ...

Страница 32: ...as the pump is not designed with respect to potential ignition sources outside In the case of a potential external explosive atmosphere use only pumps certified for the ignition category 3 inside and outside During normal operation there is no potential source of ignition inside and outside the pump but according to the 94 9 EC directive a rare malfunc tion may occur with potential sources of igni...

Страница 33: ...h time before switching on the pump When starting the pump up for the first time and each time changes are made to the electrical power supply connection check the direction of rota tion in the case of those pumps which are equipped with a three phase motor in accordance with Chapter 3 4 During initial start up and after a longer period during which the pump has not been used the pump may not imme...

Страница 34: ...ump When pumping vapours ensure that the gas ballast valve is open and that the pump has been warmed up for approximately 30 minutes with the intake line closed Vapour phases may only be pumped up to the permissible limit after the pump has attained its operating temperature During pumping vapours may dissolve in the oil This changes the oil pro perties and thus there is a risk of corrosion in the...

Страница 35: ...st valve open and the intake line closed before switching off see Section 4 4 2 When pumping aggressive or corrosive media let the pump continue to ope rate even during long non working intervals e g overnight with the intake line closed and the gas ballast valve open This avoids corrosion during idle periods If the TRIVAC NT is to be shutdown for an extended period after pumping aggressive or cor...

Страница 36: ...s cooled down to the ambient temperature and after having removed the cause first Controller Mains Power Failure In order to prevent the pump from running up unexpectedly after a mains power failure the pump must be integrated in the control system in such a way that the pump can only be switched on again manually This applies equally to emergency cut out arrangements 36 130002780_002_A0 12 2008 O...

Страница 37: ...d Please take the spare parts numbers from the enclosed spare parts list In case of special designs and variants please always indicate the special variant and serial number 5 1 Oerlikon Leybold Vacuum Service Whenever you send us in equipment indicate whether the equipment is con taminated or is free of substances which could pose a health hazard If it is contaminated specify exactly which substa...

Страница 38: ...ange it as required interval has elapsed when the noise level increases Clean internal demister with cleaning agent Replace the defective internal demister Dispose of the defective internal demister as special waste Cleaning agent according to national international specifications Observe the safety regulations when using cleaning agents 6 Check the edges of the teeth on x the coupling element for...

Страница 39: ...mber is determined according to DIN 51558 If it exceeds 2 the oil should be changed c Viscosity check If the viscosity at 25 C exceeds a level of 240 mPas 20 higher than the viscosity of fresh oil an oil change is recommended If gases or liquids dissolved in the oil result in a deterioration of the ultimate pressure the oil can be degassed by allowing the pump to run for approx 30 min with the int...

Страница 40: ...ncentration in the atmosphere 21 for oxygen it will be necessary to use a special pump Such a pump will have to be modi fied and degreased and an inert special lubricant like PFPE must be used Hazardous substances may escape from the pump and the oil Take ade quate safety precautions For example wear gloves face protection or breathing protection Observe all safety regulations Mineral oil For prop...

Страница 41: ...he PFPE rarely In such cases we recommend to exchange the PFPE once a year to be on the safe side Shorter oil change intervals will be necessary in the case of inadequate oil filter facilities oil filter changes which are done too late when pumping contaminated gases when pumping extremely reactive substances How often a PFPE exchange will be necessary can only be decided on a case by case basis d...

Страница 42: ...feeler gauge see sketch 1 When reaching the limit of wear of max friction the spider must be exchan ged immediately independent of the inspection intervals The wear limit is at 3 mm In addition a visual inspection as to the presence of any damage needs to be done If damaged the coupling must be replaced 5 7 Replacing the Outer Shaft Seal Required tools Allen keys 3 mm 5 mm 8 mm flat nose pliers pl...

Страница 43: ... 2 8 carefully and without bending it into the centering disk for position of shaft seal see Fig 5 2 If you do not have a shaft seal driver place the shaft seal on the centering disk and carefully force it in with light blows of the plastic hammer The shaft seal must not be bent Carefully push the O ring 5 2 7 and the bushing 5 2 6 onto the shaft Push the centering disk 5 2 1 with the shaft seal o...

Страница 44: ...he infor mation provided in Section 5 6 Mount the pump half of the coupling 5 2 4 on the shaft Install the spring washer 5 2 3 and tighten the screw 5 2 2 Insert the coupling element 5 2 1 into the coupling and mount the motor Maintenance 44 130002780_002_A0 12 2008 Oerlikon Leybold Vacuum ...

Страница 45: ...Measure the pressure directly at the pump s intake port External leak1 Repair the pump Service Anti suckback valve is malfunctioning Repair the valve Service Exhaust valve is malfunctioning Repair the valve Service Oil is unsuitable Change the oil degas it if necessary 5 4 Vacuum lines are dirty Clean the vacuum lines Pump is too small Check the process data replace the pump if necessary Inlet scr...

Страница 46: ...mains voltage Check the motor voltage and check available mains voltage Oil comes from the vacuum system Check the vacuum system Anti suckback valve is blocked Clean or repair the anti suckback valve Service Sealing surfaces of the anti suckback Clean or repair intake and valve are damaged or dirty anti suckback valve Service Oil level is too high Drain out excess oil 5 3 Condensation Degas the oi...

Страница 47: ...es all necessary gaskets no oil Large maintenance kit EK110002702 includes all necessary wearing parts and spare parts for major maintenance no oil Small parts kit EK110002703 Replacement pump module EK110002704 NT 25 P N Small maintenance kit for simple maintenance EK110002775 includes all necessary gaskets no oil Large maintenance kit EK110002776 includes all necessary wearing parts and spare pa...

Страница 48: ... of Waste Oil Owners of waste oil are entirely self responsible for proper disposal of this waste Waste oil from vacuum pumps must not be mixed with other substances or materials Waste oil from vacuum pumps Oerlikon Leybold Vacuum oils which are based on mineral oils which are subject to normal wear and which are con taminated due to the influence of oxygen in the air high temperatures or mechanic...

Страница 49: ...49 130002780_002_A0 12 2008 Oerlikon Leybold Vacuum ...

Страница 50: ...Condition of the equipment No1 Yes No Contamination No1 Yes 1 Has the equipment been used1 q q toxic q q 2 Drained Product service fluid q q corrosive q q 3 All openings sealed airtight q flammable q q 4 Purged q q explosive2 q q If yes which cleaning agent _______________________________________ radioactive2 q q and which method of cleaning _______________________________________ microbiological2...

Страница 51: ...51 130002780_002_A0 12 2008 Oerlikon Leybold Vacuum Note ...

Страница 52: ...m Great Britain Oerlikon Leybold Vacuum UK Ltd Unit 2 Silverglade Business Park Leatherhead Road UK Chessington Surrey KT9 2QL Sales Phone 44 13 7273 7300 Fax 44 13 7273 7301 sales vacuum ln oerlikon com Service Phone 44 20 8971 7030 Fax 44 20 8971 7003 service vacuum ln oerlikon com Italy Oerlikon Leybold Vacuum Italia S p A 8 Via Trasimeno I 20128 Milano Sales Phone 39 02 27 22 31 Fax 39 02 27 2...

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