Subsea closed loop cooling system
AssigneeVetco Gray Scandinavia AS
InventorsMartin Smaadal, Ashish Jain
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Abstract
The present invention relates to a closed loop subsea cooling system with a subsea cooler. A coolant pump assembly is located in a dedicated, sealed, gas filled, coolant pump housing in coolant fluid connection with the at least one subsea cooler. A heat sink in a dedicated sealed, gas filled, electronics housing is in coolant fluid connection with the subsea cooler. An accumulator is in coolant fluid connection with the subsea cooler, whereby the electric coolant pump is adapted to pump coolant through the at least one subsea cooler, the at least one heat sink and back to the at least one electric coolant pump assembly, forming a closed loop subsea cooling circuit.
Claims11
A closed loop subsea cooling system with a closed loop cooling circuit comprising:
- at least one subsea cooler in the closed loop cooling circuit;
- at least one topside rated electric coolant pump assembly in a dedicated sealed, gas filled, coolant pump housing in the closed loop cooling circuit;
- at least one heat sink in a dedicated sealed, gas filled, electronics housing in the closed loop cooling circuit with an operating pressure independent of water depth;
- and,
- at least one coolant volume compensation unit in the closed loop cooling circuit;
- whereby the at least one electric coolant pump assembly is adapted to pump coolant at least through the at least one subsea cooler, the at least one heat sink and back to the at least one electric coolant pump assembly, wherein the pressure in the dedicated sealed, gas filled, coolant pump housing and in the at least on dedicated sealed, gas filled, electronics housing is in a range between 50 kPa and 150 kPa.
Dependencies are inferred from the claim text.