Refrigeration system having a common air plenum

Patent metadata

Field	Value
Publication number	US-9814326-B2
Application number	US-201414469470-A
Country	US
Kind code	B2
Filing date	Aug 26, 2014
Priority date	Aug 26, 2014
Publication date	Nov 14, 2017
Grant date	Nov 14, 2017

Abstract

An air cooling system for a temperature-controlled display case includes at least two modular cooling elements, one or more fans configured to provide an air flow to the at least two modular cooling elements, and an air plenum common to each of the one or more fans and the at least two modular cooling elements, the air plenum being configured to direct the air flow from the one or more fans through the at least two modular cooling elements and into a product area of the temperature-controlled display case.

First claim

What is claimed is:

1. An air cooling system for a temperature-controlled display case, the system comprising:
at least two modular cooling elements;
one or more fans configured to provide an air flow to the at least two modular cooling elements; and
an air plenum common to each of the one or more fans and the at least two modular cooling elements such that cooling air communicates with the at least two modular cooling elements with the air plenum, the air plenum being configured to direct the air flow from the one or more fans through the at least two modular cooling elements and into a product area of the temperature-controlled display case;
wherein each of the one or more fans and the at least two modular cooling elements are housed within the air plenum.

2. The air cooling system of claim 1 , further comprising a condensing system configured to supply an inlet flow of coolant to the at least two modular cooling elements.

3. The air cooling system of claim 2 , wherein the condensing system comprises a single condensing unit configured to supply an inlet flow of coolant to each of the at least two modular cooling elements, and wherein the at least two modular cooling elements are arranged in parallel to receive the inlet flow of coolant from the single condensing unit.

4. The air cooling system of claim 2 , wherein the condensing system comprises at least two modular condensing units, and wherein each of the modular condensing units is uniquely associated with one of the at least two modular cooling elements and configured to supply an inlet flow of coolant to its associated modular evaporator coil.

5. The air cooling system of claim 4 , wherein each of the at least two modular cooling elements is connected to and configured to receive an inlet supply of coolant from only one of the at least two modular condensing units, such that each of the modular condensing units and its associated modular evaporator coil form a modular heat exchange system.

6. The air cooling system of claim 2 , wherein the condensing system is provided locally as part of the temperature-controlled display case.

7. The air cooling system of claim 2 , wherein the condensing system is remotely connected to the at least two modular cooling elements and configured to remotely provide coolant to the at least two modular cooling elements.

8. The air cooling system of claim 2 , further comprising a chiller that is configured to interact with the condensing system to chill the coolant using a secondary coolant provided via a secondary heat exchange system.

9. A temperature-controlled display case, comprising:
a product display area; and
an air cooling system configured to provide cooled air to the product display area, the air cooling system comprising:
at least two modular cooling elements;
one or more fans configured to provide an air flow to the at least two modular cooling elements; and
an air plenum common to each of the one or more fans and the at least two modular cooling elements such that cooling air communicates with the at least two modular cooling elements with the air plenum, the air plenum being configured to circulate the air flow from the one or more fans through the at least two modular cooling elements and into the product display area.

10. The temperature-controlled display case of claim 9 , further comprising a condensing system configured to supply an inlet flow of coolant to the at least two modular cooling elements.

11. The temperature-controlled display case of claim 10 , wherein the condensing system comprises a single condensing unit configured to supply an inlet flow of coolant to each of the at least two modular cooling elements, and wherein the at least two modular cooling elements are arranged in parallel to receive the inlet flow of coolant from the single condensing unit.

12. The temperature-controlled display case of claim 10 , wherein the condensing system comprises at least two modular condensing units, and wherein each of the modular condensing units is uniquely associated with one of the at least two modular cooling elements and configured to supply an inlet flow of coolant to its associated modular evaporator coil.

13. The temperature-controlled display case of claim 12 , wherein each of the at least two modular cooling elements is connected to and configured to receive an inlet supply of coolant from only one of the at least two modular condensing units, such that each of the modular condensing units and its associated modular evaporator coil form a modular heat exchange system.

14. The temperature-controlled display case of claim 10 , further comprising a chiller that is configured to interact with the condensing system to chill the coolant using a secondary coolant provided via a secondary heat exchange system.

15. An air cooling system for a temperature-controlled display case, the air cooling system comprising:
an evaporator;
a condensing system having a plurality of fluid circuits routed through the evaporator and being configured to provide an inlet supply of coolant through the evaporator via the plurality of fluid circuits, each of the plurality of fluid circuits comprising a coil;
one or more fans configured to provide an air flow to the coils; and
an air plenum common to each of the one or more fans and the coils such that cooling air communicates with the at least two modular cooling elements with the air plenum, the air plenum being configured to circulate the air flow from the one or more fans over the coils and into a product display area of the temperature-controlled display case.

16. The air cooling system of claim 15 , wherein the condensing system further comprises a plurality of condensing units configured to provide coolant to the evaporator via at least one of the plurality of fluid circuits.

17. The air cooling system of claim 16 , wherein each of the plurality of fluid circuits is connected to and associated with one of the plurality of condensing units, such that each of the fluid circuits provides coolant to the evaporator via a separate condensing unit.

18. The air cooling system of claim 17 , wherein each of the plurality of condensing units is connected to only one of the plurality of fluid circuits, such that each of the condensing units and its associated fluid circuit form a modular condensing unit.

19. The air cooling system of claim 15 , wherein the condensing system is provided locally as part of the temperature-controlled display case.

20. The air cooling system of claim 15 , wherein the condensing system is remotely connected to the evaporator and configured to remotely provide coolant to the evaporator.

Assignees

• Hill Phoenix Inc

Inventors

• Choueifati Jules G
• Howington Larry C
• Swofford Timothy D

Classifications

• F25B5/02

  arranged in parallel · CPC title

• A47F3/0452

  with cooled storage compartments · CPC title

• A47F3/0447 Primary

  with air curtains · CPC title

• F25D15/00

  Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices · CPC title

• F25D11/025

  using primary and secondary refrigeration systems · CPC title