IP Library Granted Patent US 10,292,314
Granted Patent B2
US 10,292,314 · App. 15/498,586 · Granted May 14, 2019

Cooling system for high density heat loads

Inventors: Thomas Harvey (Columbus, OH); Stephen Sillato (Westerville, OH)
Assignee: Vertiv Corporation
H05K7/20827H05K7/20318H05K7/20327H05K7/20709H05K7/20836
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Quick Facts
Patent No.
US 10,292,314
App. No.
15/498,586
Granted
May 14, 2019
Kind
B2
Abstract

A pumped refrigerant cooling system having multiple pumping units for providing working fluid to a load to enable cooling of a space via the load. The pumped refrigerant cooling system operates the pumping units at less than capacity. When a pumping unit is deactivated, the output of the remaining pumping units is increased to maintain fluid flow.

Claims (115)

1. A method for providing redundant control of a cooling system comprising:

providing a plurality of primary cooling modules, the primary cooling modules circulating refrigerant through a respective circuit including a thermal load;

providing a secondary cooling module, the secondary cooling module selectively providing a supplemental flow of refrigerant through the circuit associated with a respective primary cooling module when a fault is detected in one of the primary cooling modules;

transitioning the secondary cooling module from a standby mode of operation to an online mode of operation upon detection of the fault in one of the primary cooling modules; and

arranging valves disposed between the one primary cooling module and the circuit to prevent refrigerant flow therebetween.

2. The method of claim 1 further comprising:

inserting the secondary cooling module into a circuit of the one primary cooling module, the secondary cooling module providing cooling fluid to the circuit; and

deactivating the one primary cooling module.

3. The method of claim 2 further comprising returning the cooling system to normal operation comprising:

transitioning the one primary cooling module from a standby mode of operation to an online mode of operation when the fault is no longer detected;

arranging the valves disposed between the one primary cooling module and the circuit to enable refrigerant flow therebetween; and

deactivating the secondary cooling module.

4. The method of claim 3 further comprising removing the secondary cooling module from the circuit.

5. The method of claim 2 further comprising:

supplying refrigerant at a first temperature to the circuit associated with the respective primary cooling module; and

receiving refrigerant from the circuit associated with the respective primary cooling module, the refrigerant received by a first condenser being at a higher temperature than the first temperature.

6. The method of claim 2 further comprising:

controlling fluid flow between an inlet of the respective circuit of the one of the primary cooling modules for which the fault has been detected and the secondary cooling module; and

controlling fluid flow between an outlet of the respective circuit of the one of the primary cooling modules for which the fault has been detected and the secondary cooling module.

7. The method of claim 6 further comprising:

supplying refrigerant at a first temperature to the circuit associated with the primary cooling module for which the fault has been detected; and

receiving refrigerant from the circuit associated with the primary cooling module for which the fault has been detected, the refrigerant received from the circuit being at a higher temperature than the first temperature.

8. The method of claim 7 further comprising receiving refrigerant in a liquid state from a second condenser.

9. The method of claim 1 further comprising receiving refrigerant in a liquid state from a second condenser.

10. The method of claim 1 further comprising:

supplying refrigerant at a first temperature to the circuit it associated with the respective primary cooling module; and

receiving refrigerant from the circuit associated with the respective primary cooling module, the refrigerant received by a first condenser being at a higher temperature than the first temperature.

11. The method of claim 1 further comprising:

supplying refrigerant at a first temperature to the circuit associated with the primary cooling module for which the fault has been detected; and

receiving refrigerant from the circuit associated with the primary cooling module for which a fault has been detected, the refrigerant received from the circuit being at a higher temperature than the first temperature.

12. The method of claim 1 further comprising:

controlling fluid flow between an inlet of the respective circuit of the one of the primary cooling modules for which the fault has been detected and the secondary cooling module; and

controlling fluid flow between an outlet of the respective circuit of the one of the primary cooling modules for which the fault has been detected and the secondary cooling module.

13. A method for providing redundant control of a cooling system comprising:

providing a plurality of primary cooling modules, the primary cooling modules circulating refrigerant through a respective thermal load;

providing a secondary cooling module, the secondary cooling module selectively providing a supplemental flow of refrigerant through the load associated with a respective primary cooling module when a fault is detected in one of the primary cooling modules;

transitioning the secondary cooling module from a standby mode of operation to an online mode of operation upon detection of the fault in one of the primary cooling modules;

inserting the secondary cooling module into a circuit of the one primary cooling module, the secondary cooling module providing cooling fluid to the load;

deactivating the one primary cooling module; and

when returning the cooling system to normal operation:

activating the one primary cooling module when the fault is no longer detected;

inserting the one primary cooling module into the circuit for providing cooling fluid to the load; and

deactivating the secondary cooling module.

14. The method of claim 13 further comprising removing the one primary cooling module from a circuit.

15. The method of claim 13 further comprising removing the secondary cooling module from the circuit.

16. The method of claim 13 further comprising:

supplying refrigerant at a first temperature to the load associated with the respective primary cooling module; and

receiving refrigerant from the load associated with the respective primary cooling module, the refrigerant received by a first condenser being at a higher temperature than the first temperature.

17. The method of claim 13 further comprising:

controlling fluid flow between an inlet of the respective load of the one of the primary cooling modules for which the fault has been detected and the secondary cooling module; and

controlling fluid flow between an outlet of the respective load of the one of the primary cooling modules for which the fault has been detected and the secondary cooling module.

18. The method of claim 13 further comprising:

supplying refrigerant at a first temperature to the load associated with the primary cooling module for which the fault has been detected; and

receiving refrigerant from the load associated with the primary cooling module for which the fault has been detected, the refrigerant received from the load being at a higher temperature than the first temperature.

19. The method of claim 18 further comprising receiving refrigerant in a liquid state from a second condenser.

20. The method of claim 18 further receiving refrigerant in a liquid state from a second condenser.

21. The method of claim 13 further comprising:

supplying refrigerant at a first temperature to the load associated with the respective primary cooling module; and

receiving refrigerant from the load associated with the respective primary cooling module, the refrigerant received by a first condenser being at a higher temperature than the first temperature.

22. The method of claim 13 further comprising:

supplying refrigerant at a first temperature to the load associated with the primary cooling module for which the fault has been detected; and

receiving refrigerant from the load associated with the primary cooling module for which a fault has been detected, the refrigerant received from the load being at a higher temperature than the first temperature.

23. A method for providing redundant control of a cooling system comprising:

providing a plurality of primary cooling modules, the primary cooling modules circulating refrigerant through a respective thermal load;

providing a secondary cooling module, the secondary cooling module selectively providing a supplemental flow of refrigerant through the load associated with a respective primary cooling module when a fault is detected in one of the primary cooling modules;

transitioning the secondary cooling module from a standby mode of operation to an online mode of operation upon detection of the fault in one of the primary cooling modules;

inserting the secondary cooling module into a circuit of the one primary cooling module, the secondary cooling module providing cooling fluid to the load;

deactivating the one primary cooling module;

controlling fluid flow between an inlet of the respective load of the one of the primary cooling modules for which the fault has been detected and the secondary cooling module; and

controlling fluid flow between an outlet of the respective load of the one of the primary cooling modules for which the fault has been detected and the secondary cooling module.

24. The method of claim 23 further comprising removing the one primary cooling module from a circuit.

25. The method of claim 23 further comprising returning the cooling system to normal operation comprising:

activating the one primary cooling module when the fault is no longer detected;

inserting the one primary cooling module into the circuit for providing cooling fluid to the load; and

deactivating the secondary cooling module.

26. The method of claim 25 further comprising removing the secondary cooling module from the circuit.

27. The method of claim 25 further comprising:

supplying refrigerant at a first temperature to the load associated with the respective primary cooling module; and

receiving refrigerant from the load associated with the respective primary cooling module, the refrigerant received by a first condenser being at a higher temperature than the first temperature.

28. The method of claim 23 further comprising:

supplying refrigerant at a first temperature to the load associated with the primary cooling module for which the fault has been detected; and

receiving refrigerant from the load associated with the primary cooling module for which a fault has been detected, the refrigerant received from the load being at a higher temperature than the first temperature.

29. The method of claim 28 further comprising receiving refrigerant in a liquid state from a second condenser.

30. The method of claim 23 further comprising:

supplying refrigerant at a first temperature to the load associated with the respective primary cooling module; and

receiving refrigerant from the load associated with the respective primary cooling module, the refrigerant received by a first condenser being at a higher temperature than the first temperature.

31. A method for providing redundant control of a cooling system comprising:

providing a plurality of primary cooling modules, the primary cooling modules circulating refrigerant through a respective thermal load;

providing a secondary cooling module, the secondary cooling module selectively providing a supplemental flow of refrigerant through the load associated with a respective primary cooling module when a fault is detected in one of the primary cooling modules;

controlling fluid flow between an inlet of the respective load of the one of the primary cooling modules for which the fault has been detected and the secondary cooling module;

transitioning the secondary cooling module from a standby mode of operation to an online mode of operation upon detection of the fault in one of the primary cooling modules, and

controlling fluid flow between an outlet of the respective load of the one of the primary cooling modules for which the fault has been detected and the secondary cooling module.

32. The method of claim 31 further comprising removing the one primary cooling module from a circuit associated with the one primary cooling module.

33. The method of claim 31 further comprising:

inserting the secondary cooling module into a circuit of the one primary cooling module, the secondary cooling module providing cooling fluid to the load; and

deactivating the one primary cooling module.

34. The method of claim 33 further comprising returning the cooling system to normal operation comprising:

activating the one primary cooling module when the fault is no longer detected;

inserting the one primary cooling module into the circuit for providing cooling fluid to the load; and

deactivating the secondary cooling module.

35. The method of claim 34 further comprising removing the secondary cooling module from the circuit.

36. The method of claim 33 further comprising:

supplying refrigerant at a first temperature to the load associated with the respective primary cooling module; and

receiving refrigerant from the load associated with the respective primary cooling module, the refrigerant received by a first condenser being at a higher temperature than the first temperature.

37. The method of claim 31 further comprising:

supplying refrigerant at a first temperature to the load associated with the primary cooling module for which the fault has been detected; and

receiving refrigerant from the load associated with the primary cooling module for which the fault has been detected, the refrigerant received from the load being at a higher temperature than the first temperature.

38. The method of claim 37 further comprising receiving refrigerant in a liquid state from a second condenser.

39. The method of claim 37 further receiving refrigerant in a liquid state from a second condenser.

40. The method of claim 31 , further comprising:

supplying refrigerant at a first temperature to the load associated with the respective primary cooling module; and

receiving refrigerant from the load associated with the respective primary cooling module, the refrigerant received by a first condenser being at a higher temperature than the first temperature.

41. The method of claim 31 further comprising:

supplying refrigerant at a first temperature to the load associated with the primary cooling module for which the fault has been detected; and

receiving refrigerant from the load associated with the primary cooling module for which a fault has been detected, the refrigerant received from the load being at a higher temperature than the first temperature.

Assignments (7)
SECURITY INTEREST Recorded Oct 26, 2021
From: VERTIV CORPORATION; VERTIV IT SYSTEMS, INC.; ELECTRICAL RELIABILITY SERVICES, INC.; ENERGY LABS, INC.
To: UMB BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 057923/0782 →
ABL SECURITY AGREEMENT Recorded Mar 3, 2020
From: ENERGY LABS, INC.; VERTIV CORPORATION; VERTIV IT SYSTEMS, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 052075/0497 →
SECURITY AGREEMENT Recorded Mar 3, 2020
From: ELECTRICAL RELIABILITY SERVICES, INC.; ENERGY LABS, INC.; VERTIV CORPORATION; VERTIV IT SYSTEMS, INC.
To: CITIBANK, N.A.
Reel/Frame 052076/0874 →
RELEASE OF SECURITY INTEREST Recorded Mar 2, 2020
From: THE BANK OF NEW YORK MELLON TRUST COMPANY N.A.
To: VERTIV CORPORATION; VERTIV IT SYSTEMS, INC.; ELECTRICAL RELIABILITY SERVICES, INC.
Reel/Frame 052071/0913 →
SECOND LIEN SECURITY AGREEMENT Recorded Jun 10, 2019
From: VERTIV IT SYSTEMS, INC.; VERTIV CORPORATION; VERTIV NORTH AMERICA, INC.; ELECTRICAL RELIABILITY SERVICES, INC.; VERTIV ENERGY SYSTEMS, INC.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 049415/0262 →
CHANGE OF NAME Recorded Sep 5, 2018
From: LIEBERT CORPORATION
To: VERTIV CORPORATION
Reel/Frame 047013/0116 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 31, 2017
From: HARVEY, THOMAS; SILLATO, STEPHEN
To: LIEBERT CORPORATION
Reel/Frame 042537/0987 →
Continuity (3)
Division 13723661 · Dec 21, 2012
Provisional Application 61580686 · Dec 28, 2011
Related Publication 20170231120A1 · Aug 10, 2017