application wind turbines

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Haake Technik GmbH Master Esch 72 48691 Vreden Germany Tel.: +49 2564 3965 0 Fax +49 2564 3965 90 www.haake-technik.com [email protected] © Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

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Safety Interlock

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Page 1: Application Wind Turbines

Haake Technik GmbHMaster Esch 72 48691 VredenGermany

Tel.: +49 2564 3965 0 Fax +49 2564 3965 90www.haake-technik.com [email protected]

© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

Page 2: Application Wind Turbines

People, machinery and processes arein safe condition with Haake Technik

Application:

How to guard a service lift in Wind Turbines.

© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

Page 3: Application Wind Turbines

As the demand of Wind Turbines get higher an higher worldwide the owner, and manufactureres of them realize that service lifts are a good investment for the user and service personel to act safe and comfortable

© Haake Technik GmbH 06/10

Tower

Rotor Blade Generator

Service Lift Shaft

Service Lift Cage

Different Levels

Mr. Karl-Heinz Pohl 06/2010

Page 4: Application Wind Turbines

Without a safety arrangement the following can happen:

© Haake Technik GmbH 06/10

The worker goes to the Service Lift Cage

© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

Page 5: Application Wind Turbines

Without a safety arrangement the following can happen:

© Haake Technik GmbH 06/10

He steps in and goes up to one of the higher plattforms

© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

Page 6: Application Wind Turbines

© Haake Technik GmbH 06/10

Without a safety arrangement the following can happen:

He steps in and goes up to one of the higher plattforms

© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

Page 7: Application Wind Turbines

Without a safety arrangement the following can happen:

© Haake Technik GmbH 06/10

Another worker comes an requires the lift.

© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

Page 8: Application Wind Turbines

Without a safety arrangement the following can happen:

© Haake Technik GmbH 06/10

The lift comes down.

© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

Page 9: Application Wind Turbines

Without a safety arrangement the following can happen:

© Haake Technik GmbH 06/10

Attention:Without the Lift Cage the worker could fall into the shaft !!!

© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

Page 10: Application Wind Turbines

Without a safety arrangement the following can happen:

© Haake Technik GmbH 06/10

To avoid this, the worker can be secured by an Interlock System wich makes shure that:

- a second person can not require the lift- a defined process has to be followed up- the lift is always at the same plattform as the user

© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

Page 11: Application Wind Turbines

Parts to use:

© Haake Technik GmbH 06/10

Rotary Switch HST-S

This unit is mounted inside the cage of the service lift.To use the service lift, the key has to be inserted and rotated.

That means only the worker in the Service Lift Cage is able to activate the lift.

© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

Page 12: Application Wind Turbines

Parts to use:

© Haake Technik GmbH 06/10

Key HST-K

The key can only be in one lock. Either in the rotary switch or in the door-interlock.The key should be delivered with a chain to fix it stationary inside the Service Lift Cage.

© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

Page 13: Application Wind Turbines

Parts to use:

© Haake Technik GmbH 06/10

Door Interlock HST-TS

This interlock is mounted at every level or plattform of the tower.It locks the door or barrier as long as the key is in the rotary switch.

© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

Page 14: Application Wind Turbines

How it works:

© Haake Technik GmbH 06/10

Either

Or Or

Plattform 1 Plattform 2 Plattform 3 ...

Rotary Switch HST-SU:To switch on or turn off the energy of the service lift.Key can only be removed when energy is switched off.

Door Interlock HST-TS:Bolt can only be pulled out, when key is inserted.Thus it can only be opened when energy is switched off.

© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

e.g. Barrier

Page 15: Application Wind Turbines

© Haake Technik GmbH 06/10© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

Either

Or Or

Plattform 1 Plattform 2 Plattform 3 ...

Rotary Switch HST-SU:To switch on or turn off the energy of the service lift.Key can only be removed when energy is switched off.

Door Interlock HST-TS:Bolt can only be pulled out, when key is inserted.Thus it can only be opened when energy is switched off.

e.g. Barrier

How it works:

Page 16: Application Wind Turbines

© Haake Technik GmbH 06/10

The worker goes to the Service Lift Cage

© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

How it works:

He takes the key, puts it into the roaty switch and turns around

Page 17: Application Wind Turbines

© Haake Technik GmbH 06/10© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

How it works:

The worker goes to the Service Lift Cage

He takes the key, puts it into the roaty switch and turns around

Page 18: Application Wind Turbines

© Haake Technik GmbH 06/10© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

How it works:

The energy cicuit is closed now and the lift can go upwards

Page 19: Application Wind Turbines

© Haake Technik GmbH 06/10© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

How it works:

The key has to be removed from the rotary switch now, to opend the barrier

Page 20: Application Wind Turbines

© Haake Technik GmbH 06/10© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

How it works:

The key has to be removed from the rotary switch now, to opend the barrier

Page 21: Application Wind Turbines

© Haake Technik GmbH 06/10© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

How it works:

The worker puts the key into the door interlock, rotades it, and the barrier can be opened.

Page 22: Application Wind Turbines

© Haake Technik GmbH 06/10© Haake Technik GmbH 06/10 Mr. Karl-Heinz Pohl 06/2010

How it works:

The key stays in the interlock.

- a second person can not require the lift- a defined process has to be followed up- the lift is always at the same plattform as the user

Thus: