Mobile heat pipe cooled fast reactor system

Patent metadata

Field	Value
Publication number	US-12283383-B2
Application number	US-202217864642-A
Country	US
Kind code	B2
Filing date	Jul 14, 2022
Priority date	Apr 25, 2013
Publication date	Apr 22, 2025
Grant date	Apr 22, 2025

Abstract

A mobile heat pipe cooled fast nuclear reactor may be configured for transportation to remote locations and may be able to provide 0.5 to 2 megawatts of power. The mobile heat pipe cooled fast reactor may contain a plurality of heat pipes that are proximate to a plurality of fuel pins inside the reactor. The plurality of heat pipes may extend out of the reactor. The reactor may be configured to be placed in a standard shipping container, and may further be configured to be contained within a cask and attached to a skid for easier transportation.

First claim

The invention claimed is:

1. A mobile reactor and transportation system, comprising:
a mobile heat pipe cooled reactor comprising:
a core block; and
a plurality of heat pipes comprising coolant, a portion of each of the plurality of heat pipes extending into the core block and another portion of each of the plurality of heat pipes extending outward from the core block; and

a cylindrical transportation cask housing the mobile heat pipe cooled reactor, the transportation cask comprising:
a gamma shield and a neutron shield separated by an air gap; and
at least two impact absorbers, one of the impact absorbers disposed at one end of the transportation cask and another of the impact absorbers disposed at an opposite end of the transportation cask,
wherein at least one of the impact absorbers comprises a plurality of openings in fluid communication with the air gap and configured to provide cooling air flow to the gamma and neutron shields.

2. The mobile reactor and transportation system of claim 1 , wherein the transportation cask comprises boron carbide, lead, steel, or any combination thereof.

3. The mobile reactor and transportation system of claim 1 , wherein the transportation cask comprises a stainless steel outer wall.

4. The mobile reactor and transportation system of claim 1 , wherein the gamma shield comprises lead.

5. The mobile reactor and transportation system of claim 1 , wherein the neutron shield comprises boron carbide.

6. The mobile reactor and transportation system of claim 1 , wherein a containment vessel surrounds the mobile heat pipe cooled reactor housed within the transportation cask.

7. The mobile reactor and transportation system of claim 6 , wherein the containment vessel comprises stainless steel.

8. The mobile reactor and transportation system of claim 1 , wherein at least one of the impact absorbers comprises a steel shell.

9. The mobile reactor and transportation system of claim 8 , wherein the steel shell is filled with wood, ridged foam, honeycombed material, or any combination thereof.

10. The mobile reactor and transportation system of claim 1 , further comprising:
a cradle, the cradle configured to secure the transportation cask to a skid for transporting the mobile heat pipe cooled reactor.

11. The mobile reactor and transportation system of claim 1 , wherein an aluminum oxide reflector surrounds the core block of the mobile heat pipe cooled reactor.

12. The mobile reactor and transportation system of claim 1 , wherein the mobile heat pipe cooled reactor further comprises an active heat exchanger located outside the core block and surrounding part of the portion of each of the plurality of heat pipes extending outward from the core block.

13. The mobile reactor and transportation system of claim 1 , wherein the mobile heat pipe cooled reactor further comprises a decay heat exchanger located outside the core block and surrounding part of the portion of each of the plurality of heat pipes extending outward from the core block, the decay heat exchanger configured to perform decay heat removal.

14. The mobile reactor and transportation system of claim 1 , wherein the air gap is 1-2 inches wide.

15. The mobile reactor and transportation system of claim 1 , wherein the transportation cask and the mobile heat pipe cooled reactor housed therein weigh 35-45 tons.

16. The mobile reactor and transportation system of claim 1 , wherein the transportation cask is 12 feet long with a 6-foot diameter.

Assignees

• Triad Nat Security Llc

Inventors

• Mcclure Patrick Ray
• Dixon David Duff
• Poston David Irvin
• Kapernick Richard J
• Reid Robert Stowers
• Dasari Venkateswara Rao

Classifications

• G21D5/08

  with engine working medium heated in a heat exchanger by the reactor coolant · CPC title

• G21F5/14

  Devices for handling containers or shipping-casks, e.g. transporting devices {loading and unloading, filling of containers (cranes, load-engaging elements or devices for cranes, capstans, winches or tackles B66C)} · CPC title

• G21F5/08

  Shock-absorbers, e.g. impact buffers for containers · CPC title

• Y02E30/30

  Nuclear fission reactors · CPC title

• Y02E30/00

  Energy generation of nuclear origin · CPC title