A DEVICE FOR PRODUCING A LEAK TIGHT, ELECTRICALLY ISOLATIVE JOINT BETWEEN TWO CONNECTING METAL PIPES CARRYING FLUIDS AT VERY HIGH PRESSURE AND TEMPERATURE CONDITIONS PRESENT IN OPERATING BOILERS

A DEVICE FOR PRODUCING A LEAK TIGHT, ELECTRICALLY ISOLATIVE JOINT BETWEEN TWO CONNECTING METAL PIPES CARRYING FLUIDS AT VERY HIGH PRESSURE AND TEMPERATURE CONDITIONS PRESENT IN OPERATING BOILERS

The invention relates to a device for producing a leak tight electrically isolative joint between two connecting metal pipes carrying fluids at very high pressure and temperature conditions present in operating boilers, the device comprising identical flanges (10 and 13) having grooves on mating sur...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DIBYA JYOTI DEKA, AGORAM GUNASEKARAN, RAMASAMY DHANUSKODI, SHANMUGAM KALYANASUNDARAM, RAMAN KALIAPPAN
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
CYLINDERS
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
PISTONS
SEALINGS
THERMAL INSULATION IN GENERAL
WEAPONS
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Beschreibung
Zusammenfassung:The invention relates to a device for producing a leak tight electrically isolative joint between two connecting metal pipes carrying fluids at very high pressure and temperature conditions present in operating boilers, the device comprising identical flanges (10 and 13) having grooves on mating surface welded with the pipes to be connected, a gasket assembly consisting of one stainless steel disc (12) with or without ceramic coating and two stainless steel ring joint gaskets (4 and 5) placed in the grooves, two copper rings (6 and 11) placed inside the grooves, mica sheet gaskets (2 and 14) of appropriate thickness placed at the contact surfaces (top and bottom) of the ring joint gaskets (4, 5) and stainless steel disc (12), the flanges being tightened by using stainless steel studs (8) and nuts(3) including washers (9), the studs (8) and the washers (9) coated with ceramic to ensure electrical isolation between the two connecting pipes (1, 7).