公开(公告)号：US20220099496A1

公开(公告)日：2022-03-31

申请号：US17387527

申请日：2021-07-28

Applicant: University of Electronic Science and Technology of China

Inventor： Chao Wang ,  Jing Jiang ,  Yi Niu ,  Anmei Qiu ,  Zezhan Zhang ,  Peifeng Yu ,  Guiyun Tian ,  Shan Gao

IPC: G01J5/00 ,  G01J5/04 ,  F02C7/16

Abstract: A four-shaft panoramic scanning temperature measuring device with a circulating water-cooling device is provided, which not only improves the working reliability of the probe, but also increases the overall flexibility and scanning measurement efficiency. The circulating water-cooling device is self-cooled. Compared with the conventional single-circulation water-cooling way, the design of five cooling cavities can achieve higher circulating water-cooling efficiency. The four-shaft structure includes a shaft structure for translation, a shaft structure for rotation, a shaft structure for swinging, and a shaft structure with coaxial sight pipe and light pipe. The design of the four-shaft structure is able to panoramically scan the high-temperature components inside the turbine. The temperature measuring device integrates functions of cooling, swinging, translating and rotating together, which solves problems of large size and complex control of the conventional temperature measuring device.

公开(公告)号：US11808632B2

公开(公告)日：2023-11-07

申请号：US17387527

申请日：2021-07-28

Applicant: University of Electronic Science and Technology of China

Inventor： Chao Wang ,  Jing Jiang ,  Yi Niu ,  Anmei Qiu ,  Zezhan Zhang ,  Peifeng Yu ,  Guiyun Tian ,  Shan Gao

IPC: G01J5/00 ,  G01J5/04

CPC classification number: G01J5/0088 ,  G01J5/048 ,  F05D2260/232

Abstract: A four-shaft panoramic scanning temperature measuring device with a circulating water-cooling device is provided, which not only improves the working reliability of the probe, but also increases the overall flexibility and scanning measurement efficiency. The circulating water-cooling device is self-cooled. Compared with the conventional single-circulation water-cooling way, the design of five cooling cavities can achieve higher circulating water-cooling efficiency. The four-shaft structure includes a shaft structure for translation, a shaft structure for rotation, a shaft structure for swinging, and a shaft structure with coaxial sight pipe and light pipe. The design of the four-shaft structure is able to panoramically scan the high-temperature components inside the turbine. The temperature measuring device integrates functions of cooling, swinging, translating and rotating together, which solves problems of large size and complex control of the conventional temperature measuring device.

公开(公告)号：US11466979B2

公开(公告)日：2022-10-11

申请号：US17151681

申请日：2021-01-19

Applicant: University of Electronic Science and Technology of China

Inventor： Chao Wang ,  Zezhan Zhang ,  Peifeng Yu ,  Yi Niu ,  Ying Duan ,  Xueke Gou ,  Yekui Zhong ,  Anmei Qiu ,  Pei Huang ,  Yuehai Zhang ,  Shan Gao ,  Jing Jiang

IPC: G01B11/16

Abstract: The present invention discloses a method of measuring longitude deformation of blades. The radiation and rotation speed of the blade are collected by an optical probe and a synchronized rotation sensor. The stretch of the blade is able to be determined by the obvious change in the light intensity detected by the optical probe. The precision servo motor keeps driving the optical probe to move upward. The collected radiation is compared with the radiation collected on the previous point. The stretch of the blade is calculated based on position of the blade tip which is determined by the time when the high level radiation from the blade is disappeared. The longitude deformation of the blade is calculated by plugging the stretch into the deformation equation. Mapping the calculated deformation with the number of the blade calculated with rotation speed synchronizing signals to achieve the deformation of all the blades.

公开(公告)号：US20210140761A1

公开(公告)日：2021-05-13

申请号：US17151681

申请日：2021-01-19

Applicant: University of Electronic Science and Technology of China

Inventor： Chao Wang ,  Zezhan Zhang ,  Peifeng Yu ,  Yi Niu ,  Ying Duan ,  Xueke Gou ,  Yekui Zhong ,  Anmei Qiu ,  Pei Huang ,  Yuehai Zhang ,  Shan Gao ,  Jing Jiang

IPC: G01B11/16

Abstract: The present invention discloses a method of measuring longitude deformation of blades. The radiation and rotation speed of the blade are collected by an optical probe and a synchronized rotation sensor. The stretch of the blade is able to be determined by the obvious change in the light intensity detected by the optical probe. The precision servo motor keeps driving the optical probe to move upward. The collected radiation is compared with the radiation collected on the previous point. The stretch of the blade is calculated based on position of the blade tip which is determined by the time when the high level radiation from the blade is disappeared. The longitude deformation of the blade is calculated by plugging the stretch into the deformation equation. Mapping the calculated deformation with the number of the blade calculated with rotation speed synchronizing signals to achieve the deformation of all the blades.

公开(公告)号：US11680851B2

公开(公告)日：2023-06-20

申请号：US17326313

申请日：2021-05-20

Applicant: University of Electronic Science and Technology of China

Inventor： Chao Wang ,  Jing Jiang ,  Anmei Qiu ,  Yekui Zhong ,  Yi Niu ,  Peifeng Yu ,  Zezhan Zhang ,  Ying Duan ,  Xueke Gou ,  Guiyun Tian

IPC: G01J5/00 ,  G01J5/0806 ,  G01J5/10 ,  G01M15/02 ,  G01M15/14 ,  G01J5/04 ,  G01J5/48

CPC classification number: G01J5/0088 ,  G01J5/04 ,  G01J5/0806 ,  G01J5/10 ,  G01M15/02 ,  G01M15/14 ,  G01J5/485 ,  G01J2005/106

Abstract: A device for measuring surface temperature of a turbine blade based on a rotatable prism includes a probe, a prism rotating apparatus and an optical focusing apparatus. The prism rotating apparatus and the optical focusing apparatus are located inside the probe. The probe includes a probe outer casing, a probe inner casing, a water-cooled casing pipe, a sapphire window piece, a quartz prism, a light pipe, a collimating lens, a focusing lens and an infrared array detector. The prism rotating apparatus includes a rotary motor, a worm, a gear and a prism rotary table, the rotary motor rotates to drive the prism rotary table to rotate. The optical focusing apparatus includes a telescopic motor, a coupler, a lead screw and a drive rod, the telescopic motor rotates to drive the lead screw, so as to further drive the drive rod to move along the slot.

公开(公告)号：US20210270674A1

公开(公告)日：2021-09-02

申请号：US17326313

申请日：2021-05-20

Applicant: University of Electronic Science and Technology of China

Inventor： Chao Wang ,  Jing Jiang ,  Anmei Qiu ,  Yekui Zhong ,  Yi Niu ,  Peifeng Yu ,  Zezhan Zhang ,  Ying Duan ,  Xueke Gou ,  Guiyun Tian

IPC: G01J5/00 ,  G01J5/08 ,  G01J5/10 ,  G01M15/02 ,  G01M15/14

Abstract: A device for measuring surface temperature of a turbine blade based on a rotatable prism includes a probe, a prism rotating apparatus and an optical focusing apparatus. The prism rotating apparatus and the optical focusing apparatus are located inside the probe. The probe includes a probe outer casing, a probe inner casing, a water-cooled casing pipe, a sapphire window piece, a quartz prism, a light pipe, a collimating lens, a focusing lens and an infrared array detector. The prism rotating apparatus includes a rotary motor, a worm, a gear and a prism rotary table, the rotary motor rotates to drive the prism rotary table to rotate. The optical focusing apparatus includes a telescopic motor, a coupler, a lead screw and a drive rod, the telescopic motor rotates to drive the lead screw, so as to further drive the drive rod to move along the slot.