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RENK-MAAG GmbHP. O. Box 3068 • Sulzer-Allee 46 • 8404 Winterthur • SwitzerlandTelephone +41 52 262 89 88 • Fax +41 52 262 89 [email protected] • www.renk-maag.ch
Our manufacturing and other operational activities are implemented in accordance with our internal quality assurance system and in strict compliance with ISO 9001:2008, ISO 14001:2004 and OHSAS 18001:2007.
Innovative Power Transmission
RENK-MAAG
Synchronous Clutch Coupling type HS …your compact engine translator!
Energy recovery, combined cycle technologies, cogeneration and others• Connecting expander turbines
to main drives in petrochemical plants or steel manufacturing (blast furnaces)
• Blower drives in power stations for use during starting sequence
RENK-MAAG Synchronous Clutch Coupling type HS
HS Clutch – For full positive and negative torque transmission
Power generation• Peaking power plant – Synchronous condensing – Power discharge• Combined Cycle Power Plants (CCPP)• Combined Heat and Power (CHP) plants• Compressed Air Energy Storage (CAES)
Marine applications• Combined propulsion systems such
as CODOG, COGOG, CODAG, COGAG, CODAD, etc.
•Efficiencyboosterdrivesfordiesel engine propulsion systems
The HS Clutch has a very similar synchro-nizing mechanism to the MS Clutch, but instead of the main helical toothing, it has a spur gear power transmission toothing (straight gear). The synchronizing mecha-nismisusedtofindaclean“toothtogap”position. The HS starts the screw like motion and a small front face toothing engages. Right then the hydraulic system isautomaticallyactivatedandfinishes the engagement by a pure axial shifting. As soon as the MS Clutch is fully engaged the high pressure hydraulics are de-loaded and the HS Clutch works now like a classic gear coupling, which can transmit full positive and negative torque, without dis engaging. Disengagement is carried out by the remote controlled hydraulic system, which pulls out the coupling star in a no-load situation in axial direction until it is fully disengaged and the HS Clutch is free-wheeling.
The RENK-MAAG HS Clutch understands everything in the range of 0.5 to well over 240 MW!
RENK-MAAG Synchronous Clutch Couplings are used in a wide range of applications
Input Coupling sleeve Coupling star Support shaft Synchronizing mechanism Ratchet wheel
Output Pawl carrier Pawl Piston (spring) Coupling sleeve
Input
Output
Summary
More than 50 years of experience within RENK-MAAG! Over 800 Synchronous Clutch Couplings sold!
Design
Between flanges • Standard solution• Easy assembly due to bolted connection• Lube oil supply approx 2 bar• High pressure hydraulic system
approx 5–10 bar
Input
Gas turbine (input)
Output
Generator (output)
Possible operation modes• Peak power• Condenser operation
(grid stabilisation)• Power discharge from the grid
Train arrangement
= Bearing
Input(gas turbine)
Spool piece with synchronizing mechanism
Servo mechanism
Output(generator)
• Flexible with integrated gear coupling• Engaging at low speeds <500 rpm• Gear coupling when engaged which allows
full positive and negative torque• Compact, long-lived and wear-free•Retrofitableintoexistingplants• Suitable for high torque and high speed• Wide range of application• Tailored for customer requirements
RENK-MAAG clutch design allows for a very short and compact shaft train, so overall plant costs (including foundation, civil works, cranes etc.) are reduced com- pared to other solutions. Finally this even allowstoretrofittheRENK-MAAGMS/HSSynchronous Clutch into existing plants.
• In the optimal case no support bearings are required.
• Small support bearing if required by rotor dynamics (shaft overhangs) possible.
•Noadditionalflexiblecouplingsarerequired.
This offers the grid and plant operators to improve the utilization of the existing infrastructure, and so to increase the flexibility and profitability.
~
Product portfolio
MS- -Q HS- -E ZD- -HAdd. features Add. features Add. features
MS ZD
Engaging automatically• Flexible with integrated
gear coupling• Engaging at any
synchronous speed• Disengaging at any
speed with negative torque• Various additional features• Small drag when disengaged• E.g. Combined Cycle Power
Plants (CCPP), synchronous condensors, propulsion trains, tandem fan drives
Engaging on demand• Flexible with integrated
gear coupling • Pure gear coupling when
engaged which allows full positive and negative torque
• Engaging at low synchronous speeds
• Disengaging at small load(on demand and at any speed)
• Very small drag when disengaged
• E.g. GT – Generator: Peak Power /Synchronous Condenser Operation
Completely disengageable• Flexible with integrated
gear coupling • Pure gear coupling when
engaged which allows full positive and negative torque
• Engaging at standstill• Disengaging at small load
(on demand and at any speed)• No drag when disengaged• E.g. Combined Heat
and Power (CHP) plants, fan drives
* RENK-MAAG supplies services and spare parts for all MAAG couplings. RENK Rheine specializes in non-shiftable gear couplings.
Various types used asflexiblecouplings.
HS
Synchronous Clutch Coupling
ShiftableNon-shiftable *
RENK-MAAG provides new products, services, inspections, repairs and spare parts (incl. complete couplings) for all types of MAAG/RENK-MAAG couplings.
Additional features (more features on request!)A For starter drivesD Disengaging at low speedsE EncasedF Isolating device (pawl free)H Hydraulically operated (e.g. pawl free)J Insulation
L Lever activated (manually)N Engagement at low speedP Reverse protectionQ Quill-shaft arrangementR Locking mechanismT For turning gears
E.g. 390 mm pitch diameter of gear coupling, quill-shaft arrangement
M
H
Z
S
S
D
39
88
50
Q
E
H
E.g. 880 mm pitch diameter of gear coupling, encased
E.g. 500 mm pitch diameter of gear coupling, hydraulically activated
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Additional features
Additional features
Additional features
Gear couplings
Basic designM Mechanical automatic disengagement /engagementH Hydraulically operatedS Synchronous clutch couplingZ Gear coupling (Zahnkupplung)D Disengageable
Basic design
Coupling size
RENK-MAAG GmbHP. O. Box 3068 • Sulzer-Allee 46 • 8404 Winterthur • SwitzerlandTelephone +41 52 262 89 88 • Fax +41 52 262 89 [email protected] • www.renk-maag.ch
Our manufacturing and other operational activities are implemented in accordance with our internal quality assurance system and in strict compliance with ISO 9001:2008, ISO 14001:2004 and OHSAS 18001:2007.
08.2
016_
2 e
RENK-MAAG gear couplings