Device for mounting and withdrawing a plasma torch relative to an apparatus operating under pressure and temperature precluding a direct intervention
AssigneeAerospatiale Societe Nationale Industrielle
InventorsJean Feuillerat, Jean Jouanno
Life of this patent
Estimating the term…
Abstract
The device for mounting and withdrawing a plasma torch in an apparatus at high pressure and temperature comprises in combination: at least one circular sealing element (2) interposed between the inner surface of a sleeve (3) and a nose (12) of the torch (4) and surrounding the nose, devices (6, 13) for balancing the pressures on each side of a valve (5) within the sleeve, and devices (18,23) for cooling the sealing element. The devices for balancing the pressures on each side of the valve comprise a communication pipe (6) by-passing the valve (5) and a tap valve (13) inserted in the pipe.
Claims12
A device adapted for mounting a plasma torch having a non-transfered arc and a nose, said torch being mounted on a sleeve comprising an inner surface and a closing valve and being connected to an apparatus operating under high pressure and high temperature conditions, without modification of said conditions, and adapted for withdrawing the torch from the apparatus, said device comprising in combination:
- at least one circular sealing element interposed between the inner surface of a sleeve of the apparatus and a nose of the torch and surrounding said nose, a closable valve provided within the sleeve;
- and means for balancing pressures on each side of the closable valve.
Dependencies are inferred from the claim text.