Catalyst door system
AssigneeThermal Engineering International
InventorJon Emsbo
Life of this patent
Estimating the term…
Abstract
A high temperature industrial door having a flexible door plate with notches about the periphery thereof for receipt of swing bolts. The door plate includes interior insulation and is suspended from and hinged to a door frame using a davit assembly. In the closed position, the lower edge of the door extends below floor level. To open the door, the davit assembly allows the door to be lifted above floor level and moved to an open position, by pivoting of the davit assembly.
Claims15
A door system having a generally vertical door opening of a building, the building having a floor adjacent the door opening, the door system further comprising:
- a door panel at least partially covering the door opening of the building, said door panel having a lower portion extending below the level of the floor of the building;
- a davit arm connected to the building for pivotal movement with respect to the building;
- said davit arm being connected to the door panel for allowing said door panel to be moved between a closed position and an open position with respect to the door opening of the building;
- and
- a jack connected to said door panel and to said davit arm and allowing said lower portion of said door panel to be selectively lifted from a position below the level of the floor of the building to a position above the level of the floor of the building.
A door system having a generally vertical door opening of a selective catalytic reactor structure, the structure having an interior floor surface and an exterior floor surface adjacent the door opening, the door system further comprising:
- a door panel at least partially covering the door opening of the structure, said door panel having a lower portion adapted for extending below the level of the interior floor surface;
- a davit arm connected to the structure for pivotal movement with respect to the structure;
- said davit arm being connected to the door panel for allowing said door panel to be moved between a closed position and an open position with respect to the door opening of the structure;
- and
- a screw jack connected to said door panel and to said davit arm, such that upon selective actuation of said screw jack, said lower portion of said door panel is lifted from a position below the level of the interior floor of the structure to a position above the level of the exterior floor of the structure.
A method of installing a door for a generally vertical door opening in the exterior wall of a selective catalytic structure, the structure having an interior floor surface adjacent the door opening, the method comprising:
- providing a door frame defining a doorway opening having a lower threshold portion;
- providing a door panel for receipt in said doorway;
- positioning said door frame such that said lower threshold portion is at substantially the same elevation as the interior floor surface;
- positioning said door panel such that a lower edge thereof extends below the elevation of the interior floor surface and such that said doorway is in general alignment with the door opening of the structure;
- attaching said doorway to the structure;
- and
- attaching said door panel to said door frame for movement between an open position, wherein said doorway is generally unobstructed, to a closed position, wherein said doorway is generally covered by said door panel.
A method of operating a door for a generally vertical door opening of a selective catalytic structure, the structure having an interior floor surface and an exterior floor surface adjacent the door opening, the exterior floor surface having a recess extending below the door opening and the level of the interior floor surface, the method comprising:
- providing a door panel for at least partially covering the door opening of the structure, said door panel having a lower portion extending below the level of the interior floor surface;
- providing a davit arm connected to the structure for pivotal movement with respect to the structure;
- providing a jack connected to said door panel and to said davit arm;
- actuating said jack such that said lower portion of said door panel is lifted from a position below the level of the floor of the structure to a position above the level of the exterior floor;
- and
- pivoting said door panel about the davit assembly such that said door panel no longer covers the door opening.
Dependencies are inferred from the claim text.