Method and apparatus for monitoring particle laden pneumatic abrasive flow in an abrasive fluid jet cutting system

摘要

An abrasive jet cutting system may include a differential pressure measurement apparatus configured to measure a differential pressure between points in an abrasive supply system. The differential pressure may be used to determine one or more conditions of the jet and the abrasive delivery. The measured differential pressure may be used in a feedback control system, feed forward control system, and/or an alarm or safety system.

主权项

1. A method for monitoring an abrasive fluid jet cutting system, comprising:
providing an abrasive to an abrasive fluid jet nozzle by entraining abrasive particles in air through an abrasive supply tube; measuring a differential pressure between at least two points along the abrasive supply tube; setting a standard differential pressure; and transmitting a control signal in response to the differential pressure deviating from the set standard differential pressure by more than a specified absolute or relative amount.