Vortex driven passive hydrogen recombiner and igniter

Patent metadata

Field	Value
Publication number	US-11923099-B2
Application number	US-202017098603-A
Country	US
Kind code	B2
Filing date	Nov 16, 2020
Priority date	May 10, 2017
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

An igniter apparatus which generates a high speed buoyancy induced vortex to funnel hydrogen and air from the surrounding onto the “igniter core” where an “igniter core” heats up to the auto ignition temperature by the exothermic catalytic oxidation of hydrogen on its surface. Water (vapor) is formed as the product, which inhibits the oxidation reaction, if not stripped away from the catalyst surface. The high velocity of the vortex ensures the stripping of the boundary layer of steam that is formed by the reaction, thus ensuring more active sites are available for hydrogen oxidation. The vortex is formed by channeling an upward draft into a vortex by guided fins. The upward draft is formed by a plate, which is also coated with a hydrogen recombination catalyst. The plate becomes hot by the same catalytic oxidation reaction in the presence of air containing hydrogen.

First claim

What is claimed is:

1. A method of recombining and igniting hydrogen comprising the steps of:
passively collecting a first gas, potentially having hydrogen as a component, through a first gaseous intake of a housing through which the first gas will be processed;
directing the first gas from the first gaseous intake to an underside of a substantially horizontal, flat metallic plate coated with a hydrogen recombination catalyst, along an underside of the substantially horizontal, flat metallic plate to a first gas outlet at a periphery of the substantially horizontal, metallic plate;
passively collecting a second gas, potentially having hydrogen as a component, through a second gaseous intake through the housing and through a first set of swirl vanes substantially proximate and in communication with an upper side of the substantially horizontal, flat metallic plate, with the swirl vanes configured to create a vortex out of the second gas traversing the second gaseous intake;
exiting the vortex at a second gaseous outlet through an upper portion of the housing;
supporting a first passive igniter at an entrance to the first gaseous intake; and
supporting a second passive igniter proximate the second gaseous outlet.

2. The method of claim 1 wherein the first gaseous outlet extends up through an interior of at least some of the first set of swirl vanes and exits outside the second gaseous outlet.

3. The method of claim 1 including the step of powering the second igniter from the vortex.

4. The method of claim 3 wherein the second igniter is a rotating device that accumulates charge to create a spark as an ignition activation energy.

5. The method of claim 1 wherein the second gaseous outlet includes a cover spaced from the second gaseous outlet including the step of shielding the second igniter.

Assignees

• Westinghouse Electric Co Llc

Inventors

• Arafat Yasir
• Lyons John L

Classifications

• G21C9/06 Primary

  Means for preventing accumulation of explosives gases, e.g. recombiners · CPC title

• B01D53/8671

  Removing components of defined structure not provided for in B01D53/8603 - B01D53/8668 · CPC title

• B01J12/007

  in the presence of catalytically active bodies, e.g. porous plates · CPC title

• G21C19/317

  Recombination devices for radiolytic dissociation products · CPC title

• B01D2257/108

  Hydrogen · CPC title