| US 7,497,229 B2 | ||
| Seal support system with discharging means | ||
| Nadim Tahir, Rotherham (United Kingdom); Desmond Hall, Belfast (Ireland); and James Frances McKeever, Belfast (Ireland) | ||
| Assigned to AES Engineering Ltd, (United Kingdom) | ||
| Filed on Mar. 24, 2006, as Appl. No. 11/277,440. | ||
| Claims priority of application No. 0506096.7 (GB), filed on Mar. 24, 2005. | ||
| Prior Publication US 2006/0213574 A1, Sep. 28, 2006 | ||
| Int. Cl. F16K 21/04 (2006.01); F04C 29/12 (2006.01); F04B 39/02 (2006.01); F04B 39/04 (2006.01) | ||
| U.S. Cl. 137—391 [141/95; 141/198; 141/302; 277/408; 417/366] | 11 Claims |
| 1. A seal support system for maintaining barrier fluid in a mechanical seal comprising:
a vessel for containing barrier fluid;
feeding means for feeding barrier fluid between the vessel and the mechanical seal;
detecting means for automatically detecting barrier fluid within the vessel;
restoring means for automatically restoring barrier fluid within the vessel and;
discharging means for automatically draining all the barrier fluid from the vessel after a predetermined period of time;
wherein the detecting means comprises means for automatically detecting a pressure of barrier fluid within the vessel and
the restoring means comprises means for supplying barrier fluid under pressure from a barrier fluid source to the vessel when
the pressure is below a predetermined pressure; wherein the discharging means periodically and automatically drains all of
the barrier fluid from the vessel.
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