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R. Sharma and V. Tanna
1 Introduction
For operation of SST-1 superconducting magnet machine, these helium pressure
vessels store the helium gas at pressure at 150 bar (g) and 14 bar (g), respectively.
Out of these six vessels, four numbers of medium pressure vessels are installed at 2.8
meter diameter and 13 m height as shown in Fig. 1. Regular operation and breakdown
maintenance of the vessels are being used by the inbuilt monkey type straight ladder.
This ladder is fabricated by a round pipe on which one has to hold the ladder’s pipe
to go on the top of the vessels. Considering the safety aspects of manpower and to
protect from falling down during climbing by slipping of legs, upgraded structure of
spiral ladder and joint platform for ease of access and movement of personnel on the
vessels has been designed, fabricated and installed as shown in Fig. 2.
Fig. 1 Helium high pressure vessels
Fig. 2 Pressure vessels with access structure
R. Sharma and V. Tanna
1 Introduction
For operation of SST-1 superconducting magnet machine, these helium pressure
vessels store the helium gas at pressure at 150 bar (g) and 14 bar (g), respectively.
Out of these six vessels, four numbers of medium pressure vessels are installed at 2.8
meter diameter and 13 m height as shown in Fig. 1. Regular operation and breakdown
maintenance of the vessels are being used by the inbuilt monkey type straight ladder.
This ladder is fabricated by a round pipe on which one has to hold the ladder’s pipe
to go on the top of the vessels. Considering the safety aspects of manpower and to
protect from falling down during climbing by slipping of legs, upgraded structure of
spiral ladder and joint platform for ease of access and movement of personnel on the
vessels has been designed, fabricated and installed as shown in Fig. 2.
Fig. 1 Helium high pressure vessels
Fig. 2 Pressure vessels with access structure