Cooling system and laboratory instrument having a cooling system
AssigneeThermo Electron LED GmbH
InventorsDaniel Langer, Kai Peitzberg
Life of this patent
Estimating the term…
Abstract
The application relates to a cooling system, the cooling system having: an evaporator, a first compressor, a second compressor, a cooling component, an expansion device and a line system that connects the evaporator, the first compressor, the second compressor, the cooling component and the expansion device to one another. The cooling system includes a refrigerant, wherein the refrigerant comprises carbon dioxide. The first compressor and the second compressor are arranged in series with one another. The application also relates to a corresponding laboratory instrument.
Claims17
A laboratory instrument having a cooling system, wherein the cooling system comprises:
- a refrigerant, the refrigerant comprising carbon dioxide;
- an evaporator;
- a first compressor, the first compressor designed to compress the refrigerant from a primary pressure range to a secondary pressure range;
- a second compressor, the second compressor designed to compress the refrigerant from the secondary pressure range to a tertiary pressure range,
- the first compressor and the second compressor being arranged in series with one another;
- a cooling component;
- an expansion device;
- a line system that connects the evaporator, the first compressor, the second compressor, the cooling component and the expansion device to one another;
- and
- a circuit control that is designed to control a flow of the refrigerant,
- wherein the circuit control is designed to open the expansion device on the basis of a pressure of the refrigerant and, depending on a degree of opening of the expansion device, expansion of the refrigerant downstream of the expansion device is controlled, and
- wherein the circuit control is designed to control the expansion device as a function of an outlet temperature of the cooling component and/or an ambient temperature in order to set a pressure in the tertiary pressure range.
Dependencies are inferred from the claim text.