Throttle valve for coolant circulation system

A fluid compressor system configured to supply a compressed working fluid comprising:

• a first air-end configured to compress the working fluid;
• a second air-end configured to further compress the working fluid discharged by the first air-end;
• a third air-end configured to further compress the working fluid discharged by the second air-end;
• a first intercooler located between the first air-end and the second air-end and having a first coolant inlet and a first coolant outlet, the first intercooler configured to cool the working fluid discharged by the first air-end before entering the second air-end;
• a second intercooler located downstream from the second air-end and having a second coolant inlet and a second coolant outlet, the second intercooler configured to cool the working fluid discharged by the second air-end;
• an aftercooler configured to cool the working fluid discharged by the third air-end;
• and
• a coolant circulation system having a coolant supplying header and a coolant collecting header, the coolant supplying header configured to supply the coolant to the first intercooler, the second intercooler, and the aftercooler, and the coolant collecting header configured to collect the coolant from the first intercooler, the second intercooler, and the aftercooler;
• wherein the coolant circulation system includes a first throttle valve between the first coolant outlet and the coolant collecting header and a second throttle valve between the second coolant outlet and the coolant collecting header, the first throttle valve and the second throttle valve configured to respectively regulate a coolant flow discharged by the first intercooler and the second intercooler.

A coolant circulation system for supplying a coolant flow comprising:

• a coolant supplying header configured to supply the coolant flow to a first cooling element, a second cooling element, and a third cooling element;
• a coolant collecting header configured to collect the coolant flow from the first cooling element, the second cooling element, and the third cooling element;
• a first throttle valve coupled between the first cooling element and the coolant collecting header;
• and
• a second throttle valve coupled between the second cooling element and the coolant collecting header,
• wherein the first throttle valve and the second throttle valve are configured to respectively regulate a coolant flow discharged by the first cooling element and the second cooling element;
• and where the first cooling element, the second cooling element, and the third cooling element are connected in parallel through the coolant supplying header and the coolant collecting header.