Cooling system for cooling a motorcompressor unit
A cooling system for cooling an integrated, high pressure, motorcompressor unit, the cooling system including a second motorcompressor unit and at least a first duct fluidly connecting a process fluid connection point located at the second motorcompressor unit to at least one process fluid injection point located at the first motor area of the first motorcompressor unit.
1. A cooling system for cooling a first motorcompressor unit comprising a casing, a fluid intake, a fluid discharge, a first compressor area defined within the casing, a first motor area defined within the casing, a first compressor located in the first compressor area and a first motor located in the first motor area, the cooling system comprising:
a second motorcompressor unit comprising a second motor area; and
at least a first duct fluidly connecting a fluid connection point of the second motorcompressor unit to a first fluid connection point of the first motorcompressor unit, the fluid connection point of the first motorcompressor unit located at the first motor area,
the at least a first duct comprising:
a first duct segment connected to the fluid connection point of the second motorcompressor unit,
a second duct segment connected to the fluid connection point of the first motorcompressor unit,
a first re-injection duct connected at an injection point to the first motor area,
a second re-injection duct connected at an injection point to the second motor area, and
two heat exchangers, wherein one of the two heat exchangers is provided on the first re-injection duct and the other of the two heat exchangers is provided on the second re-injection duct.
2. The cooling system according to claim 1 , wherein a pressure of a fluid at the fluid connection point of the second motorcompressor unit is lower than a pressure of the fluid at the fluid intake of the first motorcompressor unit.
3. The cooling system according to claim 1 , wherein the second motorcompressor unit comprises, a second casing, a second fluid intake, a second fluid discharge, the second motor area which is within the casing, a second compressor area within the second casing, a second motor located in the second motor area, and a second compressor located in the second compressor area.
4. The cooling system according to claim 1 , further comprising a return duct fluidly connecting one or more return extraction points provided on the first motorcompressor unit to a fluid intake of the second motorcompressor.
5. The cooling system according to claim 1 , wherein the first compressor of the first motorcompressor unit is fluidly connected to a compressor of the second motorcompressor unit in series.
6. The cooling system according to claim 5 , wherein a third heat exchanger is provided on a duct fluidly connecting the first compressor and the second compressor.