Calvin E Phelps

US Patent:

20080267837, Oct 30, 2008

Filed:

May 10, 2007

Appl. No.:

11/801705

Inventors:

Calvin E. Phelps - Akron OH, US
Clayton A. Erickson - Princeton MA, US
Rajaram Jambhekar - Randolph MA, US
John R. Harold - Worcester MA, US

International Classification:

B01J 19/00

US Classification:

422162

Abstract:

The invention provides a system for converting urea into reactants useful for removing NOfrom industrial emissions. The system includes a urea inlet, a steam inlet, and a reactor in fluid communication with the urea inlet and the steam inlet. The reactor is configured and adapted to inject urea from the urea inlet into a steam flow from the steam inlet to convert the urea into at least one reactant for NOreduction within a substantially gaseous mixture. The invention also provides a method of converting urea into reactants for reducing NOout of industrial emissions. The method includes injecting urea into a steam flow to convert the urea into at least one reactant for NOreduction within a substantially gaseous mixture.

US Patent:

57300879, Mar 24, 1998

Filed:

May 4, 1995

Appl. No.:

8/434625

Inventors:

Calvin E. Phelps - Akron OH

Assignee:

The Babcock & Wilcox Company - New Orleans LA

International Classification:

F22B 3700

US Classification:

122 6A

Abstract:

Pendant convection pass tube circuitry of once through steam generator have their floor and floor support tubes enlarged by a swage coupling and connected to enlarged sidewall tubes supported from steel boiler top supports to provide a more flexible circuitry operating at decreased temperatures and pressure losses.

US Patent:

55011810, Mar 26, 1996

Filed:

Sep 8, 1994

Appl. No.:

8/302563

Inventors:

Calvin E. Phelps - Akron OH

Assignee:

The Babcock & Wilcox Company - New Orleans LA

International Classification:

F22B 3700

US Classification:

122 6A

Abstract:

A method of supporting the spiral boiler tubing that surrounds a portion of the furnace or combustion area of a steam generator. This method of support eliminates the need to weld plate to the outside of the boiler tubing thereby increasing the mass of the boiler tubing which will result in the creation of temperature differentials within the spiral tubing. In accordance with this invention, a plurality of support members are inserted within and alongside the regular spiral tubing forming a part of the furnace enclosure. These support members are periodically removed from within the plane of this furnace enclosure and re-positioned to another (usually more elevated) position within the furnace enclosure. As the support members near the top of the spiral tubing (which is also the transition from the spiral tubing to more vertically aligned tubing), these support members are secured to this vertical tubing thereby transferring the loading of the spiral tubing to the vertical tubing. In other embodiments, it may be desirable to transfer the loading to other support members such as boiler top support steel.

US Patent:

59342277, Aug 10, 1999

Filed:

Apr 16, 1998

Appl. No.:

9/061480

Inventors:

Calvin E. Phelps - Akron OH

Assignee:

The Babcock & Wilcox Company - New Orleans LA

International Classification:

F22B 3700

US Classification:

122 6A

Abstract:

A once-through steam generator having single pass non-split fluid flow upper furnace circuitry with a one to one connection of tubes of the lower furnace spiral or vertical tube assembly being connected to the vertical tubes of the upper furnace assembly to prevent steam water separation and provide a fully drainable flow circuit.

US Patent:

57223530, Mar 3, 1998

Filed:

May 4, 1995

Appl. No.:

8/435097

Inventors:

Calvin E. Phelps - Akron OH

Assignee:

The Babcock & Wilcox Company - New Orleans LA

International Classification:

F22B 3700

US Classification:

122 6A

Abstract:

A once-through steam generator having single pass non-split fluid flow circuitry with a one to one connection of furnace hopper vertical tubes assembly being connected to the spiral tubes of the lower furnace assembly.

US Patent:

59016698, May 11, 1999

Filed:

Apr 5, 1995

Appl. No.:

8/417167

Inventors:

Calvin E. Phelps - Akron OH

Assignee:

The Babcock & Wilcox Company - New Orleans LA

International Classification:

F22B37/00

US Classification:

122 6A

Abstract:

A once-through steam generator having single pass non-split fluid flow upper furnace circuitry with a one to one connection of tubes of the lower furnace spiral or vertical tube assembly being connected to the vertical tubes of the upper furnace assembly to prevent steam water separation and provide a fully drainable flow circuit.

US Patent:

61209333, Sep 19, 2000

Filed:

Oct 5, 1998

Appl. No.:

9/166306

Inventors:

Calvin E. Phelps - Akron OH

International Classification:

H01M 1036

US Classification:

429103

Abstract:

The present invention provides a rechargeable electrochemical battery cell which has self-charging capabilities. Specifically, the cell comprises two chambers interconnected with a tubing and a valve; each chamber further comprising a top closure, a positive contact disposed through said top closure, a cathode in electrical contact with said positive contact, a liquid metal anode disposed in the chamber at the bottom, a negative contact disposed through the bottom of the chamber and in electrical contact with said liquid metal anode, and a non-aqueous molten salt electrolyte disposed within the chamber. At a first temperature, a first electrochemical reaction occurs within the first chamber between the non-aqueous molten salt electrolyte and the liquid metal anode wherein the cation from the non-aqueous molten salt electrolyte reduces to form the liquid metal anode and the first liquid metal anode becomes the cation in the non-aqueous molten salt electrolyte. The new liquid metal anode and new molten salt electrolyte are transferred to the second chamber and reacted at a second temperature to produce an electrochemical reaction that is the reverse of the first electrochemical reaction. After each reaction, the electrical energy from the reaction is discharged to a load.

US Patent:

56693338, Sep 23, 1997

Filed:

Feb 13, 1996

Appl. No.:

8/600616

Inventors:

Calvin Eugene Phelps - Akron OH

Assignee:

The Babcock & Wilcox Company - New Orleans LA

International Classification:

F22B 3714
F22B 3720
F22B 3722

US Classification:

122 6A

Abstract:

An arrangement for a furnace of a once-through steam generator includes a fluid mix header for holding a volume of a furnace mix fluid. A plurality of side wall tubes at the side wall of the furnace are connected to a side wall header. A roof outlet header is located at the roof of the furnace and a roof tube is connected at one end to the roof outlet header and at the opposite end to one end of a loop section of tube. A front wall tube located at the front end of the furnace is connected at one end to the opposited end of the loop section of the tube from the roof tube. A connection tube is connected between the roof outlet header and the fluid mix header. Rear and front screen tubes are connected directly to the fluid mix header of the furnace. Fluid from the fluid mix header is provided to the convection pass downcomer and convection pass tube enclosures of the steam generator.