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公开(公告)号：US11465187B2
公开(公告)日：2022-10-11
申请号：US16772745
申请日：2019-03-20
Applicant: KOREA ELECTRIC POWER CORPORATION , KOREA MIDLAND POWER CO., LTD. , KOREA WESTERN POWOR CO., LTD. , KOREA SOUTH POWER CO., LTD. , KOREA EAST-WEST POWER CO., LTD.
Inventor： Kwang-Ha Park , Doo-Young Kim , Hyun-Ku Park , Jung-Hwan Kim , Yong-Hee Jang , Jun-Su Park
Abstract: A bent rotor straightening method using low-frequency induction heating and a bent rotor straightening apparatus using the method are proposed. The bent rotor straightening method using low-frequency induction heating according to an embodiment of the present invention includes: calculating a heating speed when a first target temperature for correcting bending of a rotor using low-frequency induction heating is set; maintaining the first target temperature for a heating time determined on the basis of a diameter of the rotor when the first target temperature is reached, when performing primary thermal correction at the heating speed; checking whether a bending amount of the rotor reaches a predetermined critical value in accordance the result of performing the primary thermal correction; and finishing correction of bending of the rotor in accordance with the result of checking the bending amount of the rotor.
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公开(公告)号：US20200369971A1
公开(公告)日：2020-11-26
申请号：US15931583
申请日：2020-05-14
Inventor： Bong Keun KIM , Jeong Seok YOO , Sung Hee KIM , Jong Ho OH , Jun Seok KIM
Abstract: An operating guide system of a plant utilizing coal gasification includes a performance analyzer for analyzing performance of the plant by analyzing gasifier performance and synthesis gas cooler performance during an operation of the plant; an operation guide generator for generating an operation guide indicating control values for the operation of the plant based on the performance analysis of the plant; an action guide generator for generating an action guide indicating control values for controlling the plant to prevent an abnormal situation predicted in the plant based on the performance analysis of the plant; and a fuel determiner for determining gasification suitability of an analysis target fuel selected by a user before the plant is started, the gasification suitability including basic suitability and suitability of slag behavior.
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3.发明申请公开(公告)号：US20200338614A1
公开(公告)日：2020-10-29
申请号：US16772745
申请日：2019-03-20
Applicant: KOREA ELECTRIC POWER CORPORATION , KOREA MIDLAND POWER CO., LTD. , KOREA WESTERN POWOR CO., LTD. , KOREA SOUTH POWER CO., LTD. , KOREA EAST-WEST POWER CO., LTD.
Inventor： Kwang-Ha PARK , Doo-Young KIM , Hyun-Ku PARK , Jung-Hwan KIM , Yong-Hee JANG , Jun-Su PARK
Abstract: A bent rotor straightening method using low-frequency induction heating and a bent rotor straightening apparatus using the method are proposed. The bent rotor straightening method using low-frequency induction heating according to an embodiment of the present invention includes: calculating a heating speed when a first target temperature for correcting bending of a rotor using low-frequency induction heating is set; maintaining the first target temperature for a heating time determined on the basis of a diameter of the rotor when the first target temperature is reached, when performing primary thermal correction at the heating speed; checking whether a bending amount of the rotor reaches a predetermined critical value in accordance the result of performing the primary thermal correction; and finishing correction of bending of the rotor in accordance with the result of checking the bending amount of the rotor.
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