Container for a system for storing and restoring heat, comprising at least two modules formed from concrete

Patent metadata

Field	Value
Publication number	US-10317008-B2
Application number	US-201715650621-A
Country	US
Kind code	B2
Filing date	Jul 14, 2017
Priority date	Jul 15, 2016
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

The invention is a container ( 200 ) for a system for storing and restoring heat, comprising a vessel including means for injecting and withdrawing a gas to be cooled or reheated. The vessel is limited by a first jacket formed from concrete ( 203 ) surrounded by a thermally insulating layer ( 206 ), which is surrounded by a steel shell ( 204 ). The vessel comprises at least two modules formed from concrete ( 210 ) located one above the other and centered to form a first jacket from concrete ( 203 ). Each module formed from concrete comprises a volume limited by a side wall formed from concrete ( 211 ) and a perforated base formed from concrete ( 205 ). The volume contains a fixed bed of particles of a material for the storage and restitution of heat ( 207 ).

First claim

The invention claimed is:

1. A container for a heat storage and restitution of heat to particles inside the container, comprising:
a vessel including means for injecting and withdrawing a gas to be cooled or heated, the vessel including a jacket formed from concrete including pressure equalizing holes formed in the concrete of the jacket and surrounded by a thermally insulating layer, the insulating layer being surrounded by a steel shell with the jacket and insulating layer not being pressure-tight; and wherein
the vessel comprises at least two modules formed from concrete which are disposed one above the other in a centered configuration to form the jacket, each module having a volume limited by a side wall formed from concrete and a base formed from concrete with perforations formed therein with the volume being configured to contain a fixed bed of the particles for the storage and restitution of the heat.

2. The container as claimed in claim 1 , in which the modules are monoblocs.

3. The container as claimed in claim 1 , wherein the material for the storage and restitution of heat is concrete particles.

4. The container as claimed in claim 2 , wherein the material for the storage and restitution of heat is concrete particles.

5. The container as claimed in claim 1 , wherein the modules are cylindrical in shape.

6. The container as claimed in claim 2 , wherein the modules are cylindrical in shape.

7. The container as claimed in claim 3 , wherein the modules are cylindrical in shape.

8. The container as claimed in claim 1 , wherein the thermal conductivity ranges:
0.1 to 2 W·m −1 ·K −1 for the first jacket,
0.01 to 0.17 W·m −1 ·K −1 for the insulating layer, and
20 to 250 W·m −1 ·K −1 for the steel shell.

9. The container as claimed in claim 1 , wherein a thickness of the insulating layer controls a temperature of the steel shell to be no more than 50° C., and the insulating layer is selected from a layer of rock wool, perlite, glass wool, cellular glass, an air gap.

10. The container as claimed in claim 1 , comprising 2 to 12 modules formed from concrete.

11. The container as claimed in claim 1 , wherein the vessel has a volume ranging from 200 m 3 to 1000 m 3 .

12. The container as claimed in claim 1 , comprising vessels are assembled in at least one of series and parallel.

13. A system for the storage and restitution of heat, comprising at least one container as claimed in claim 1 .

14. A compressed air AACAES energy storage facility, comprising:
a compression system for compressing air during a compression phase;
a system for the storage and restitution of heat as claimed in claim 13 for storing heat from the air compressed during a compression phase and for restoring the heat to the compressed air during an expansion phase;
a storage reservoir for storing air compressed by the compression system and cooled by the system for the storage and restitution of heat; and
a device for expanding the compressed air obtained from the storage reservoir during the expansion phase.

15. The storage facility as claimed in claim 14 , wherein the reservoir has a volume ranging from 1000 m 3 to 7000 m 3 and the vessel has a volume ranging from 200 m 3 to 1000 m 3 , and the system for the storage and restitution of heat comprises at least three containers.

16. A method for assembling a container as claimed in claim 1 , comprising:
installing the steel shell a covering cap at a container assembly site with the steel shell being disposed on a support;
assembling the modules, installing the insulating layer into the modules and filling the modules with the particles, by successively inserting the modules into the steel shell in a centered configuration to form the jacket; and
closing the container by assembling the steel shell with the steel cap which is thermally insulated.

17. The assembly method as claimed in claim 16 , wherein a volume of each of the modules is filled with the heat storage material provided after each module is inserted into the steel shell.

18. The assembly method as claimed in claim 16 , wherein a volume of each of the modules is filled with the particles before inserting the module into the steel shell.

Assignees

• Ifp Energies Now

Inventors

• Deleau Fabrice
• Bancel Thierry
• Pourtier Alice

Classifications

• F17C1/005 Primary

  Storage of gas or gaseous mixture at high pressure and at high density condition, e.g. in the single state phase · CPC title

• Y02E20/14

  Combined heat and power generation [CHP] · CPC title

• F17C1/12

  with provision for thermal insulation ({F17C1/14, F17C1/16 take precedence}; thermal insulation in general F16L59/00) · CPC title

• F28D2020/0082

  Multiple tanks arrangements, e.g. adjacent tanks, tank in tank · CPC title

• F17C2203/0678

  Concrete · CPC title