Pressure vessel with barrier passage containing fire suppressant elements

Patent metadata

Field	Value
Publication number	US-11300360-B2
Application number	US-202016751955-A
Country	US
Kind code	B2
Filing date	Jan 24, 2020
Priority date	Jan 24, 2020
Publication date	Apr 12, 2022
Grant date	Apr 12, 2022

Abstract

A pressure vessel includes a first wall defining a container and a second wall surrounding the container defining a cavity between the first wall and the second wall. The pressure vessel also includes a vent in the second wall providing fluid communication between the cavity and an outside of the second wall and matter positioned within the cavity configured to prevent flame from propagating through the cavity while providing thermal conductivity between the first wall and the second wall.

First claim

The invention claimed is:

1. A pressure vessel comprising:
a first system comprising:
a first container;
a second container surrounding the first container;
a first barrier space extending between the first container and the second container,
a first plurality of fire suppression elements, wherein the plurality of fire suppression elements extends from the first container to the second container;
a vent; and
a first barrier passage, wherein the first barrier passage is defined by the plurality of fire suppression elements, and wherein the barrier passage is fluidically connected to the vent;

a second system comprising:
a third container;
a fourth container surrounding the third container;
a second barrier space extending between the third container and the fourth container;
a second plurality of fire suppression elements, wherein the second plurality of fire suppression elements extend from the third container to the fourth container;
a second vent; and
a second barrier passage, wherein the second barrier passage is defied by the second plurality of fire suppression elements, and wherein the second barrier passage is fluidically connected to the second vent;

a central drain port fluidically coupled to the first vent and the second vent; and
wherein the central drain port provides fluid communication with the atmosphere.

2. The pressure vessel from claim 1 , wherein the first and second barrier passages further comprise:
a width extending in a first direction; and
a length extending in a second direction.

3. The pressure vessel from claim 2 , wherein the width ranges from 0.0127 millimeters-6.35 millimeters (0.0005 inches-0.25 inches).

4. The pressure vessel of claim 1 , wherein the first plurality of fire suppression elements includes fire suppression elements having a first shape and fire suppression elements having a second shape.

5. The pressure vessel of claim 4 , wherein the first plurality of fire suppression elements alternate from the first shape to the second shape along the first barrier passage.

6. The pressure vessel of claim 1 , wherein the second plurality of fire suppression elements includes fire suppression elements having a first shape and fire suppression elements having a second shape.

7. The pressure vessel of claim 6 , wherein the second plurality of fire suppression elements alternate from the first shape to the second shape along the first barrier passage.

8. The pressure vessel from claim 1 , wherein a check valve is connected to the drain port.

9. The pressure vessel from claim 1 , wherein the first container, the second container, and the first plurality of fire suppression elements are one continuous piece.

10. The pressure vessel of claim 1 , wherein the third container, the fourth container, and the second plurality of fire suppression elements are one continuous piece.

11. The pressure vessel of claim 1 , wherein the first system and the second system are each heat exchangers.

12. A method of making the pressure vessel of claim 1 , the method comprising:
forming the first container;
forming the first fire suppression elements on the surface of the first container; and
forming the second container surrounding the first container and defining the barrier space between the first container and the second container.

13. The method of making of claim 12 , further comprising:
additively manufacturing the first container, the second container, and the first plurality of fire suppression elements as one continuous piece.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Colson Paul M
• Surawski Eric
• Lokhandwalla Murtuza
• Killen Thomas James
• Mangoyan Raffi O

Classifications

• F28F1/003

  Multiple wall conduits, e.g. for leak detection (leak-detection in metal cooled nuclear reactor steam generators F22B1/066) · CPC title

• F17C2203/0626

  Multiple walls · CPC title

• F28F2265/10

  for preventing overheating, e.g. heat shields · CPC title

• F28D7/005

  the conduits for only one medium being tubes having bent portions or being assembled from bent tubes or being tubes having a toroidal configuration (F28D7/0008, F28D7/02, F28D7/04, F28D7/06, F28D7/14 take precedence) · CPC title

• F28D7/106 Primary

  consisting of two coaxial conduits or modules of two coaxial conduits · CPC title