Cooling facility

Patent metadata

Field	Value
Publication number	US-11073312-B2
Application number	US-201816126317-A
Country	US
Kind code	B2
Filing date	Sep 10, 2018
Priority date	Mar 10, 2016
Publication date	Jul 27, 2021
Grant date	Jul 27, 2021

Abstract

A facility has a storage unit comprising a housing enclosing a storage volume for receiving goods and/or equipment. It comprises an operating system provided with a tempering unit associated with the storage volume for maintaining a defined or set temperature in the storage volume. The operating system is provided with a refrigerant circuit comprising an internal heat exchanger, arranged in the tempering unit, an external heat exchanger as well as a compressor unit for compressing refrigerant. The operating system is provided with an engine for driving said compressor unit as an independent power source and an electric generator unit mechanically coupled to said engine. The compressor unit and/or the generator unit are driven by the engine independent power source, with the operating system connected to a local energy supply system of said facility to provide a local electric mains power supply system connected to the electric generator unit.

First claim

The invention claimed is:

1. A facility, comprising: a storage unit comprising an insulated container housing enclosing a storage volume for receiving (a) goods or (b) equipment or (c) both goods and equipment, and further comprising at least one operating system provided with a tempering unit associated with said storage volume for maintaining a defined or set temperature in said storage volume, said at least one operating system being provided with a refrigerant circuit comprising an internal heat exchanger, arranged in said tempering unit, an external heat exchanger as well as a compressor unit for compressing refrigerant,
said at least one operating system is provided with an internal combustion engine for driving said compressor unit as an independent power source and said at least one operating system is provided with an electric generator unit mechanically coupled to said internal combustion engine, (a) said compressor unit or (b) said electric generator unit or (c) both said compressor unit and said electric generator are driven by said internal combustion engine as the independent power source, and said at least one operating system is connected to a local energy supply system of said facility, said local energy supply system comprising a local electric mains power supply system connected to said electric generator unit in order to feed electric power to said local electric mains power supply system of said facility, wherein the facility is independent from any mains power supply system powered by a power plant.

2. The facility according to claim 1 , wherein said local energy supply system comprises a local heat supply system.

3. The facility according to claim 2 , wherein said local electric mains power supply system is designated to supply electric power to at least one of a building equipment, an office equipment or a production equipment of said facility.

4. The facility according to claim 2 , wherein said local electric mains power supply system comprises an electric power storage unit.

5. The facility according to claim 2 , wherein said electric generator unit is a motor/generator unit which in a dependent power source mode receives electric power from said local electric mains power supply system for driving said compressor unit.

6. The facility according to claim 2 , wherein said local heat supply system is connected to a heater associated with said tempering unit.

7. The facility according to claim 2 , wherein said local heat supply system is provided with a heat storage unit.

8. The facility according to claim 2 , wherein said local heat supply system is designed to supply heat to at least one of a building equipment, an office equipment or a production equipment of said facility.

9. The facility according to claim 1 , wherein said external heat exchanger is connected to a local heat supply system comprised by said local energy supply system.

10. The facility according to claim 1 , wherein said internal combustion engine is provided with an exhaust heat exchanger connected to a local heat supply system comprised by said local energy supply system.

11. The facility according to claim 1 , wherein said internal combustion engine is provided with engine cooling circuit connected to a local heat supply system comprised by said local energy supply system.

12. The facility according to claim 1 , wherein said electric generator and said compressor unit are directly coupled by a shaft.

13. The facility according to claim 1 , wherein said electric generator and said compressor unit are driven by a common drive shaft.

14. The facility according to claim 1 , wherein a control is provided enabling operating of said facility in at least one of the following modes
a general mode in which said internal combustion engine drives said compressor unit and said electric generator for supplying electric power to said local mains power supply system and heat is supplied to a local heat supply system from at least one of said external heat exchanger, an exhaust heat exchanger and a engine cooling circuit,
a primary electrical mode in which said internal combustion engine drives at least said electric generator for supplying electric power to said local mains power supply system,
a primary tempering mode in which said internal combustion engine drives at least said compressor unit for providing cooling capacity to said refrigerant circuit,
a primary heating mode in which said internal combustion engine supplies heat to said local heat supply system from at least one of said exhaust heat exchanger and said engine cooling circuit.

15. The facility of claim 1 , wherein said local electric mains power supply system of the facility is not connected to any the power plant but only powered by said at least one operating system.

16. At least one operating system for a facility having a storage unit, said storage unit comprising an insulated container housing enclosing a storage volume for receiving (a) goods or (b) equipment or both goods and equipment, said at least one operating system comprising:
a tempering unit associated with said storage volume for maintaining a defined or set temperature in said storage volume,
a refrigerant circuit comprising an internal heat exchanger, arranged in said tempering unit, an external heat exchanger as well as a compressor unit for compressing refrigerant,
an internal combustion engine for driving said compressor unit as an independent power source and
an electric generator unit mechanically coupled to said internal combustion engine, (a) said compressor unit or (b) said generator unit or (c) both said compressor unit and said generator unit are driven by said internal combustion engine as the independent power source, and wherein said at least one operating system is connected to a local energy supply system of said facility, said local energy supply system comprising a local electric mains power supply system connected to said electric generator unit in order to feed electric power to said local electric mains power supply system of said facility, wherein the facility is independent from any mains power supply system powered by a power plant.

17. The at least one operating system according to claim 16 , wherein said local energy supply system comprises a local heat supply system.

18. The at least one operating system according to claim 16 , wherein said internal combustion engine is provided with at least one of an exhaust heat exchanger designed to be connected to a local heat supply system comprised by said local energy supply system, of said facility and in particular with an engine cooling circuit designed to be connected to a local heat supply system of said facility.

19. The facility of claim 16 , wherein said local electric mains power supply system of the facility is not connected to the power plant but only powered by said at least one operating system.

Assignees

• Bitzer Kuehlmaschinenbau Gmbh

Inventors

• Blumhardt Marcus

Classifications

• F25D2323/002

  Details for cooling refrigerating machinery · CPC title

• F25B27/00 Primary

  Machines, plants or systems, using particular sources of energy (F25B30/06 takes precedence) · CPC title

• F25B2327/001

  Mechanical Engineering · mapped topic

• F25D15/00

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