Low pressure relief valve assembly for high pressure boiler
OwnerVictor V. Carberryinventor
Life of this patent
Estimating the term…
Abstract
Apparatus for providing for low pressure operation of a high pressure boiler including a low pressure relief valve mounted on the boiler and adapted to release steam from the boiler at a steam pressure lower than the pressure developed during high pressure operation of the boiler. An electrically operated control valve is provided for selectively connecting the low pressure relief valve to the boiler, and the valve is controlled for precluding connection of the low pressure relief valve to the boiler until the steam pressure in the boiler drops below the relief pressure of the low pressure relief valve.
Claims11
Apparatus for providing for low pressure operation of a high pressure boiler, the high pressure boiler including a high pressure relief valve, a boiler burner, and means for controlling operation of the boiler burner to provide for high pressure operation of the boiler, the apparatus comprising:
- a low pressure relief valve mounted on the boiler and adapted to release steam from the boiler at a steam pressure lower than the pressure developed during high pressure operation of the boiler,
- means for selectively connecting said low pressure relief valve to the boiler.
Apparatus for use in selectively converting a high pressure boiler to be used temporarily as a low pressure boiler, the apparatus of the invention comprising
- a low pressure relief valve adapted to be connected to a boiler, and
- means for selectively connecting said low pressure relief valve to the boiler once the pressure of the boiler has declined to a level below the pressure where the low pressure relief valves will be actuated, said means for selectively connecting the low pressure relief valve to the boiler including a conduit secured to the boiler, a low pressure relief manifold is connected to said conduit, the low pressure relief valve manifold including at least one relief valve adapted to discharge steam into the atmosphere in the event the pressure of the boiler reaches the selected level, and a control valve operably positioned between the conduit and the low pressure relief valve and operable to alternatively selectively connect the low pressure relief valve to the boiler.
Dependencies are inferred from the claim text.