公开(公告)号：US12044525B2

公开(公告)日：2024-07-23

申请号：US18351619

申请日：2023-07-13

申请人： SAUDI ARABIAN OIL COMPANY

发明人： Fadl Abdellatif ,  Ayman Amer ,  Ali Outa ,  Sahejad Patel ,  Abdullah Arab

IPC分类号： G01B17/02 ,  B63G8/00 ,  C23F13/22 ,  G01N29/07 ,  G01N29/22 ,  G01N29/265 ,  G01N29/28 ,  G10K11/00 ,  C23F13/04

CPC分类号： G01B17/02 ,  B63G8/001 ,  C23F13/22 ,  G01N29/07 ,  G01N29/223 ,  G01N29/265 ,  G01N29/28 ,  G10K11/006 ,  C23F13/04 ,  C23F2213/31 ,  G01N2291/02854 ,  G01N2291/101 ,  G01N2291/2634

摘要： This application discloses magnetically coupled integrated probes and probe systems, attachable to the robotic arms of a remotely operated vehicle to perform both cathodic protection (CP) voltage measurements and ultrasonic testing (UT) thickness measurements at an underwater surface. The integrated probe system can include a spring for coupling to an ROV end effector. An ultrasonic probe is disposed within and extends from the sleeve housing. A magnetic carrier, flux concentrator, and gimbal surround a portion of the ultrasonic probe, and one or more electrically conductive legs extend from the front surface of the gimbal to function as a CP probe. The legs are arranged about the ultrasonic probe, which has a flexible membrane exposed at the front surface of the gimbal, such that during inspection, at least one leg contacts the surface and the ultrasonic probe is sufficiently proximate to provide substantially simultaneous CP and UT measurements.

公开(公告)号：US11781226B2

公开(公告)日：2023-10-10

申请号：US16859029

申请日：2020-04-27

申请人： Vector Remediation Ltd.

发明人： David William Whitmore ,  Geoffrey Richard Child

IPC分类号： C23F13/16 ,  C23F13/04 ,  C23F13/20

CPC分类号： C23F13/16 ,  C23F13/04 ,  C23F13/20 ,  C23F2201/02 ,  C23F2213/22

摘要： In a method for cathodically protecting and/or passivating a metal section in an ionically conductive material such as steel reinforcement in concrete or mortar, an impressed current or sacrificial anode communicates ionic current to the metal section and a storage component of electrical energy which can be a cell, battery or capacitor is provided as a component of the anode. A current limiter is provided which prevents excess current draining the supply. This can be a semi-conductive device such as a transistor or diode is connected in the path from the anode to the metal section to limit the cathodic protection current to a value of the order of 1 milliamp. When a diode or similar device is used the current can be limited to the reverse leakage current of the diode.

公开(公告)号：US11698209B2

公开(公告)日：2023-07-11

申请号：US16950423

申请日：2020-11-17

申请人： Rheem Manufacturing Company

发明人： Jozef Boros ,  Raheel A. Chaudhry ,  Yan Hong ,  Troy E. Trant

IPC分类号： F24H9/45 ,  F24H9/20 ,  C23F13/04 ,  C23F13/22 ,  G01N17/02 ,  G05B23/02 ,  F24H1/20

CPC分类号： F24H9/45 ,  C23F13/04 ,  C23F13/22 ,  F24H9/2021 ,  G01N17/02 ,  G05B23/0235 ,  C23F2213/21 ,  F24H1/202

摘要： The metal tank portion of an electric water heater is protected against corrosion utilizing a corrosion protection system that detects a voltage potential between the sheath portion of a tank water-immersed electric heating element and the tank. In one embodiment of the corrosion protection system the sensed sheath/tank potential is utilized to enable a user of the water heater to accurately gauge the necessity of replacing a sacrificial anode extending into the tank. In another corrosion protection system, the sensed sheath/tank potential is utilized to provide impressed current cathodic protection of the tank and also to prevent dry firing of the electric water heater.

公开(公告)号：US20230193480A1

公开(公告)日：2023-06-22

申请号：US17552805

申请日：2021-12-16

申请人： Palo Alto Research Center Incorporated

发明人： Jacob Chamoun

IPC分类号： C23F13/04 ,  C23F13/20 ,  C23F13/22

CPC分类号： C23F13/04 ,  C23F13/20 ,  C23F13/22 ,  C23F2213/10 ,  C23F2213/20

摘要： A system comprises a cathodic protection system having an anode and configured to protect a protected structure from corrosion. The system comprises a monitoring circuit operatively coupled to the cathodic protection system. The monitoring circuit comprises an electrical-to-optical transducer. The electrical-to-optical transducer is configured to generate a light signal in response to electrical current flowing between the protected structure and the anode of the cathodic protection system, the protected structure and a reference electrode, or the reference electrode and the anode.

公开(公告)号：US20230096293A1

公开(公告)日：2023-03-30

申请号：US18060824

申请日：2022-12-01

申请人： VOLVO PENTA CORPORATION

发明人： Viktor RÄFTEGÅRD

IPC分类号： C23F13/04 ,  C23F13/22 ,  B63B59/04

摘要： A marine ICCP system includes an electrical circuit comprising a primary and a secondary circuit. The primary circuit comprises a first electrode connected to a positive terminal of a power source to act as an active anode; and a second electrode connected to a negative terminal of the power source. The secondary circuit comprises a passive electrode normally disconnected from the electrical circuit and arranged to act as back-up protection, wherein the second electrode connectable to the passive electrode. The passive electrode is arranged to be connected to the power source if a detected output voltage in the primary circuit reaches a maximum value and if a determined polarization potential for the cathode is insufficient. The control unit is operable to control the output voltage supplied to the primary and secondary circuits separately in order to supply an individual output voltage to each circuit.

公开(公告)号：US11614378B2

公开(公告)日：2023-03-28

申请号：US16476268

申请日：2018-01-05

申请人： DIRECT-C LIMITED

发明人： Simon Park ,  Stephen James Edmondson ,  Adrian Banica ,  Kaushik Parmar ,  Xiaomeng Wei

IPC分类号： G01M3/18 ,  F16L58/10 ,  G01N27/12 ,  C09D5/00 ,  C09D5/24 ,  C09D123/00 ,  C09D163/00 ,  C09J9/02 ,  C23F13/04 ,  C23F13/06

摘要： A system and method for direct and/or active detection and monitoring of civil engineering or other infrastructural structures, and in a preferred embodiment, for hydrocarbon leakage in oil and gas pipelines, storage structures, and/or transportation structures. Particularly, the system and method relate to various nanocomposite sensor coating and data gathering systems. In one embodiment, the apparatus includes a single measurement sensor coating (thin film) sensor. Other embodiments relate to multiple measurement sensor coating systems. The sensor is comprised of either a discrete conductive filament layer, or a single or multiple mesh of interwoven filaments of conductive material in one direction and nonconductive material in a perpendicular direction, as a substrate coated with sensitive coating materials to form a sensor grid. Various embodiments of the sensor coating and their applications are also disclosed.

公开(公告)号：US20230058373A1

公开(公告)日：2023-02-23

申请号：US17790075

申请日：2020-12-19

申请人： GRTGAZ ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  SORBONNE UNIVERSITE

发明人： Catherine DEBIEMME-CHOUVY ,  Ahmed FAKHRY ,  Elisabeth FLEURY

IPC分类号： C23F13/04 ,  G01N33/24 ,  G01N27/416 ,  G01N27/30

摘要： A pH sensor device, intended to be inserted into the ground in order to be in contact with a region containing a fluid from the ground, for which fluid the pH is desired to be known, comprising: a pH sensor comprising a surface covered in a polymer material configured to be in contact with the region containing a fluid when the device is inserted into the ground, a metal element having a surface configured to be in contact with the region containing the fluid when the device is inserted into the ground, electrical connection means connected at least to the metal element and configured to receive a cathodic-protection electrical potential for the metal element. The invention also relates to a method for measuring pH that can be used for cathodic protection.

公开(公告)号：US20220128454A1

公开(公告)日：2022-04-28

申请号：US17452170

申请日：2021-10-25

申请人： Volvo Penta Corporation

发明人： Viktor Räftegård

IPC分类号： G01N17/02 ,  C23F13/04

摘要： A portable unit is arranged to measure a value for polarized potential in a corrosion protection system comprising a protected structure, an anode and a reference electrode, which portable unit is connectable to the protected structure and to the reference electrode. The portable unit is arranged toperform voltage measurements to detect and monitor an instant-off sequence, wherein the corrosion protection system is turned off for a predetermined time period during normal operation. If an instant-off sequence is detected, then a voltage measurement is performed to measure a voltage signal representing a direct current potential curve for the corrosion protection system during the instant-off sequence. A step response detected in the voltage signal during an initial IR drop and a subsequent voltage decay are analysed. An initial value for the voltage signal at the time of the step response is determined and displayed as a value for polarized potential.

公开(公告)号：US11078577B2

公开(公告)日：2021-08-03

申请号：US14989582

申请日：2016-01-06

申请人： Saudi Arabian Oil Company

发明人： Saeed Omar Aljabri

IPC分类号： C23F13/22 ,  G01R15/24 ,  G01R33/032 ,  C23F13/04 ,  F16L58/00 ,  F17D5/00

摘要： A system implementing fiber optics to monitor pipeline cathodic protection systems includes a cathodic protection system coupled to a hydrocarbon pipeline and a fiber optic system connected to the cathodic protection system. The cathodic protection system passes a current through the hydrocarbon pipeline to control corrosion of the hydrocarbon pipeline. The fiber optic system measures the current flowing through the hydrocarbon pipeline over time and provides the measured current.

公开(公告)号：US20210095380A1

公开(公告)日：2021-04-01

申请号：US17035503

申请日：2020-09-28

申请人： Frank William Borin ,  Thomas Theissen

发明人： Frank William Borin ,  Thomas Theissen

IPC分类号： C23F13/04 ,  C23F13/22 ,  G08C19/02

摘要： An automated system for measuring the voltage potential across test coupons, reference cells and metal structures is disclosed. The system may evaluate the amount of cathodic protection that may be applied to the metal structure. The system may automatically take, store and transmit data to a backend system via wireless and/or satellite communication systems.