Fluid control system with automatic recovery feature

A control apparatus in a fluid system comprising:

• a conduit for receiving a fluid flow, the conduit having a fluid shutdown valve;
• a turbine wheel positioned within the conduit and driven by the fluid flowing in the conduit;
• an electrical power generator engaged with and driven by the turbine wheel for delivering electrical power from the generator to a storage battery;
• a detector enabled for detecting turbine wheel RPM;
• means for calculating average and peak flow rates in the conduit;
• means for determining if average or peak flow rates exceed set point values;
• means for producing a shut down signal when average or peak set point values are exceeded;
• means for closing the shutdown valve when average or peak set point values are exceeded thereby establishing a pressure drop across the shutdown valve;
• means for enabling a bypass flow in the shutdown valve so as to enable fluid pressure equilibrium across the shutdown valve, automation means for opening the shutdown valve when said equilibrium is achieved so as to restore said fluid flow through the conduit.