Two-Stage Corrosion Under Insulation Detection Methodology and Modular Vehicle with Dual Locomotion Sensory Systems
First Claim
1. A method for detecting corrosion under insulation within insulated equipment using at least one device supporting an infrared detector and at least one pulsed eddy current (PEC) sensor, the method comprising:
- detecting, at one or more locations along the insulated equipment with the infrared detector, infrared waves emitted from the insulated equipment;
developing, using the infrared waves detected by the infrared detector, at least one image of an inner surface of the insulated equipment at the one or more locations based on the detected infrared waves;
determining, using a processor configured by code executing therein, at least one area that is susceptible to corrosion under insulation based on the at least one developed image;
storing positioning data corresponding to the at least one susceptible area in a database;
returning the device to the at least one susceptible area based on the stored positioning data;
inspecting, with the at least one PEC sensor, the at least one susceptible area on the insulated equipment, wherein the step of inspecting comprises;
generating a magnetic field,penetrating a metallic jacket of the insulated equipment with the generated magnetic field to magnetize an inner wall of the equipment, thereby inducing an eddy current in the inner wall, andmonitoring a decay in strength of the eddy current over time; and
determining, using the processor configured by code executing therein, whether any corrosion under insulation exists at the at least one susceptible area based on a rate of the decay in strength of the eddy current.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods and systems for inspecting insulated equipment for corrosion under insulation are provided. The system includes an autonomous unmanned vehicle having aerial and ground locomotive capabilities. The vehicle includes an infrared detector and a pulsed eddy current sensor. In the method, infrared waves emitted from the equipment are detected along the equipment with the infrared detector. Using the infrared detector, at least one image of an inner surface of the equipment is developed based on the detected infrared waves. At least one area that is susceptible to corrosion is determined based on the at least one image. The susceptible area is inspected with the pulsed eddy current sensor, which induces an eddy current in the inner wall of the equipment. Based on a rate of the decay in strength of the eddy current, it is determined whether corrosion exists at the susceptible area using a processor configured by code.
-
Citations
22 Claims
-
1. A method for detecting corrosion under insulation within insulated equipment using at least one device supporting an infrared detector and at least one pulsed eddy current (PEC) sensor, the method comprising:
-
detecting, at one or more locations along the insulated equipment with the infrared detector, infrared waves emitted from the insulated equipment; developing, using the infrared waves detected by the infrared detector, at least one image of an inner surface of the insulated equipment at the one or more locations based on the detected infrared waves; determining, using a processor configured by code executing therein, at least one area that is susceptible to corrosion under insulation based on the at least one developed image; storing positioning data corresponding to the at least one susceptible area in a database; returning the device to the at least one susceptible area based on the stored positioning data; inspecting, with the at least one PEC sensor, the at least one susceptible area on the insulated equipment, wherein the step of inspecting comprises; generating a magnetic field, penetrating a metallic jacket of the insulated equipment with the generated magnetic field to magnetize an inner wall of the equipment, thereby inducing an eddy current in the inner wall, and monitoring a decay in strength of the eddy current over time; and determining, using the processor configured by code executing therein, whether any corrosion under insulation exists at the at least one susceptible area based on a rate of the decay in strength of the eddy current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method for detecting corrosion under insulation within insulated equipment using at least one modular unmanned aerial vehicle (UAV) having aerial and ground locomotive capabilities, the method comprising:
-
installing an infrared module on the at least one UAV, wherein the infrared module comprises an infrared detector; positioning the UAV on the insulated equipment; detecting, at one or more locations along the insulated equipment with the infrared detector, infrared waves emitted from the insulated equipment; developing, using the infrared waves detected by the infrared detector, at least one image of an inner surface of the insulated equipment at the one or more locations based on the detected infrared waves; determining, using a processor configured by code executing therein, at least one area that is susceptible to corrosion under insulation based on the at least one developed image; installing a pulsed eddy current (PEC) module on the at least one UAV, wherein the PEC module comprises at least one PEC sensor; inspecting, with the at least one PEC sensor, the at least one susceptible area on the insulated equipment, wherein the step of inspecting comprises; generating a magnetic field, penetrating a metallic jacket of the insulated equipment with the generated magnetic field to magnetize an inner wall of the equipment, thereby inducing an eddy current in the inner wall, and monitoring a decay in strength of the eddy current over time; and determining, using the processor configured by code executing therein, whether any corrosion under insulation exists at the at least one susceptible area based on a rate of the decay in strength of the eddy current. - View Dependent Claims (10, 11, 12, 13, 14)
-
-
15. An autonomous, modular unmanned vehicle having aerial and ground locomotive capabilities for inspection of insulated equipment for corrosion under insulation, the vehicle comprising:
-
a controller, having a memory storing instructions in the form of code and a processor configured by executing the instructions therein, wherein the controller is configured to enable operations of the vehicle; a power source configured to power all components of the vehicle; an infrared module comprising an infrared detector, wherein the infrared detector is configured to detect infrared waves emitted from the insulated equipment and to develop an image of the inner wall of the insulated equipment at one or more locations based on the detected infrared waves, and wherein the infrared module is selectively removable from the vehicle; a pulsed eddy current (PEC) module comprising at least one PEC sensor, wherein the at least one PEC sensor is configured to induce an eddy current in the inner wall and monitor a decay in strength of the eddy current over time, and wherein the PEC module is selectively removable from the vehicle; a clamping mechanism configured to selectively attach the vehicle to the insulated equipment; and at least one pair of wheels configured to move the vehicle along an outer surface of the insulated equipment when the vehicle is attached to the insulated equipment via the clamping mechanism. - View Dependent Claims (16, 17, 18, 19, 20)
-
-
21. A system for inspection of insulated equipment for corrosion under insulation, comprising:
-
at least one autonomous, modular unmanned vehicle having aerial and ground locomotive capabilities, wherein the vehicle comprises; a controller, having a memory storing instructions in the form of code and a processor configured by executing the instructions therein, wherein the controller is configured to enable operations of the vehicle, a battery configured to power all components of the vehicle, a power receiver operatively connected to the battery, at least one of an infrared module and a pulsed eddy current (PEC) module, wherein the infrared module comprises an infrared detector configured to detect infrared waves emitted from the insulated equipment and to develop an image of the inner surface of the insulated equipment at one or more locations based on the detected infrared waves, and the infrared module is selectively removable from the vehicle, and wherein the PEC module comprises at least one PEC sensor configured to induce an eddy current in the inner wall and monitor a decay in strength of the eddy current over time, and the PEC module is selectively removable from the vehicle, and a clamping mechanism configured to selectively attach the vehicle to the insulated equipment, and at least one pair of wheels configured to move the vehicle along the equipment; and a control station comprising a power source and a power transmitter, wherein the power transmitter is configured to wirelessly transfer power from the power source to the power receiver of the at least one vehicle. - View Dependent Claims (22)
-
Specification