Browse Prior Art Database

LOW CRYOGEN MAGNET WITH EXTENDED RIDE THROUGH TIME

IP.com Disclosure Number: IPCOM000236810D
Publication Date: 2014-May-16
Document File: 4 page(s) / 103K

Publishing Venue

The IP.com Prior Art Database

Abstract

The invention proposes a technique to extend ride through time for cooling system in superconducting magnets. The technique includes two arrangements for cooling system. The magnet in the cooling system includes auxiliary cooling loop which is either along coil support structure (CSS) and/or coldhead sleeve and/or thermal shield. The auxiliary cooling loops have inlet connection available with external tanks by lines which are vacuum jacketed. The cooling arrangement further includes activators. One activator is located between inlet and external tanks, while the other one is located near the outlet of the auxiliary loop. The activators are synchronized. When the activator is on, the external tanks supply helium to auxiliary cooling loop. The auxiliary loops have outlet with external vent through building or another tank to recover the helium.

This text was extracted from a Microsoft Word document.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 53% of the total text.

LOW CRYOGEN MAGNET WITH EXTENDED RIDE THROUGH TIME

FIELD OF INVENTION

The invention generally relates to superconducting magnets and more particularly to a cooling system for superconducting magnets that provides extended ride through time.

BACKGROUND OF THE INVENTION

Generally, low cryogen magnet has significant benefits to minimum dependence on helium. However, due to low helium volume, it has major challenges. For example, low ride through time is attained under power off and coldhead changeout is attained at field due to low ride through.

A conventional technique includes a cooling system and method for cooling superconducting magnet devices. The cooling system includes a magnet having primary cooling loop with reservoir and tanks. However, the conventional technique does not extend ride through time.

Hence there exists a need for a technique to extend the ride through time.

BRIEF DESCRIPTION OF THE INVENTION

The invention proposes a technique to extend ride through time for cooling system in superconducting magnets. The technique includes two arrangements for cooling system. The magnet in the cooling system includes auxiliary cooling loop which is either along coil support structure (CSS) and/or coldhead sleeve and/or thermal shield. The auxiliary cooling loops have inlet connection available with external tanks by lines which are vacuum jacketed.

DETAILED DESCRIPTION OF THE INVENTION

The invention proposes a technique to extend ride through time for cooling system in superconducting magnets. The technique includes two arrangements for cooling system. The magnet in the cooling system includes auxiliary cooling loop which is either along coil support structure (CSS) and/or coldhead sleeve and/or thermal shield. The auxiliary cooling loops have inlet connection available with external tanks by lines which are vacuum jacketed.

The cooling arrangement further includes activators. One activator is located between inlet and external tanks, while the other one is located near the outlet of the auxiliary loop. The activators are synchronized. The activator is activated by battery driving electric controller to activate the line when magnet internal pressure exceed a threshold. When the activator is on, the external tanks supply helium to auxiliary cooling loop.

The auxiliary loops have outlet with external vent through building or another tank to recover the helium.

FIG. 1 depicts an arr...