In order to avoid screw pump is damaged, usually installed in the screw pump bypass relief valve outlet to a stable outlet pressure, keep the pump running.
为了避免螺杆泵损坏，一般会在螺杆泵出口处安装旁通溢流阀，用以稳定出口压力，保持泵的正常运转。
2
During the operation of heat exchanger networks (HEN) with varying operating conditions, bypass optimal control is considered an effective method to adjust outlet fluid temperature and save energy.