Combustion Engineering, Inc.

Other

Jeffrey S Mann

Ronald J Tenerowicz

Michael S McCartney

Ivan Semyanko

Mark R Hapgood

Edward Lukstas

John F Shea

A steam generating system includes a nozzle for pulverized coal and air which includes an elongated generally cylindrical body having a nozzle at one axial portion thereof. The apparatus also includes a nozzle tip that is generally sleeve shaped and dimensioned to overlap an axial extremity of the body. The tip is mounted for pivotal movement about the extremity of the body and the nozzle tip includes first and second surfaces dimensioned and configured for receiving therebetween all flow from the body. The apparatus also includes a seat plate that is also generally sleeve shaped and dimensioned and configured to provide sealing between the extremity and the nozzle tip. The seal plate is mounted for pivotal movement about the extremity of the body and is dimensioned and configured to have third and fourth surfaces disposed respectively in closely spaced relationship to the first and second surfaces throughout all possible pivotal positions of the seal plate and the nozzle tip. This closely spaced relationship defines an elongated slat for passage of air. The seal plate includes a stop to limit relative pivotal motion between the nozzle tip and the seal plate. The first and second planar surfaces are disposed with the plan thereof parallel to the direction of flow of gases and thus allow the gases to pass through the slot without impediment.

Boundary layer coal nozzle assembly for steam generation apparatus

Single-piece grate bar key for stokers feeding steam generator furnaces

A steam generator apparatus which includes an enclosure comprising vertically extending front and back waterwalls joined by opposed spaced first and second waterwalls, The enclosure also includes a plurality of spaced vertically extending windboxes, each of the windboxes faces the interior of the enclosure. Each of the windboxes comprises a plurality of modules that are configured for installation at respective elevations, each of the modules being dimensioned and configured for shipment to the installation site. Some forms of the invention further includes a vertically extending truss assembly and the ignitor and auxiliary air compartments are supported on the truss assembly. Other forms of the invention include air ducting supplying air to air compartments and the truss assembly extends within the ducting. Still other forms of the invention may utilize the truss assembly without the modular windbox.

Windbox with integral truss support and air admission, fuel admission

A mounting for an oil gun in an associated steam generation boiler which includes a stationary union block having first and second output ports for respective fluid streams; a removable block having first and second input ports dimensioned and configured for registration with the first and second output ports; apparatus for mounting the stationary union block which comprises a collar welded to the end of an associated guide pipe and apparatus coupling the collar and the stationary union block and allowing relative pivotal moment between the collar and the stationary union; and apparatus for forcing the removable union block against the stationary union block with the respective ports thereof in registered relationship. In some forms of the invention the apparatus coupling the collar and the stationary union comprises a pin, the pin extending through the stationary union block. The apparatus coupling the collar and the stationary union block may comprise first and second plates that are carried on the pin. In some forms of the invention the first and second plates are disposed in spaced relation and are welded to the collar. The apparatus for forcing the removable union block against the stationary union block may comprise a yoke and the yoke may be carried on the pin. The apparatus for forcing may further include a bolt shaped member and a transversely extending handle.

Oil gun mounting for use in steam generation boilers

A damper assembly particularly adapted for use in a hot furnace application that includes a damper blade, a housing having a passageway therein dimensioned and configured for receiving the damper blade, and a shaft carrying the damper for rotational movement in the passageway in the housing. A bearing is disposed at one axial extremity of the shaft. The apparatus also includes bearings including a bearing housing member having an interior portion thereof which is spherical section shaped and a bearing member disposed therein having an outer surface that is a spherical section dimensioned and configured for cooperation with the inner portion of the bearing housing member. The inner members has a bore tightly engaging the shaft and the bore has inboard and outboard ends. The inner member includes a counterbore disposed in concentric relationship with the bore at the inboard end thereof. A seal is disposed in the counterbore intermediate the shaft and the walls of the counterbore. The apparatus also includes apparatus for supporting the bearing on one side of the passageway of the housing. In some forms of the invention the seal is spring loaded and in other forms it is elastomer loaded.

Growing community of inventors

Broad Brook, CT, United States of America

Jeffrey S Mann