Steam turbine generator unit rotor eccentricity and phase measuring device and method

A steam turbine generator set and rotor eccentricity technology, which is applied to measuring devices, electrical devices, optical devices, etc., can solve the problems of inaccurate measurement, the influence of rotor jacking height fluctuations, and the inability to properly reflect the bending degree of the rotor.

Pending Publication Date: 2020-07-07
GUIZHOU POWER GRID CO LTD +1
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a device and method for measuring the eccentricity of the rotor of a turbogenerator set and its phase, which solves the problem that the eccentricity measurement of a turbogenerator set is affected by the fluctuation of t

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Steam turbine generator unit rotor eccentricity and phase measuring device and method
  • Steam turbine generator unit rotor eccentricity and phase measuring device and method
  • Steam turbine generator unit rotor eccentricity and phase measuring device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1: as figure 1 Shown, a turbogenerator rotor eccentricity and its phase measurement device, including a key phase sensor 5 and a shaft displacement sensor 4, the key phase sensor 5 and the shaft displacement sensor 4 are respectively connected with two front-end devices 3, two front-end devices The output terminal of 3 is connected with the data acquisition equipment 2, and the data acquisition equipment 2 is connected with the computer 1, and the key phase sensor 5 is installed beside the measuring groove 6 on the circumferential surface of the rotor 7 or the extension shaft of the rotor 5, and the probe of the key phase sensor 5 is For the measurement slot 6, the shaft displacement sensor 4 is facing the rotor end face of the turbogenerator set and is perpendicular to the rotor end face. The resolution of the data acquisition equipment is greater than or equal to 16 bits, and the number of channels is greater than or equal to 2. Both the key phase sensor an...

Embodiment 2

[0053] Embodiment 2: as figure 2 Shown, a turbogenerator rotor eccentricity and its phase measurement device, including a key phase sensor 5 and a shaft displacement sensor 4, the key phase sensor 5 and the shaft displacement sensor 4 are respectively connected with two front-end devices 3, two front-end devices The output terminal of 3 is connected to the data acquisition device 2 through the TSI system 8, the data acquisition device 2 is connected to the computer 1, the key phase sensor 5 is installed beside the measuring groove 6 on the circumferential surface of the rotor 7 or the extension shaft of the rotor 5, and the key phase sensor The probe of 5 is facing the measurement groove 6, the shaft displacement sensor 4 is facing the rotor end face of the turbogenerator set, and is perpendicular to the rotor end face, the resolution of the data acquisition equipment is greater than or equal to 16 bits, and the number of channels is greater than or equal to 2.

[0054] Prefe...

Embodiment 3

[0056] Embodiment 3: as image 3 Shown, a turbogenerator set rotor eccentricity and its phase measurement device, including a key phase sensor 5 and a shaft displacement sensor 4, the shaft displacement sensor 4 is replaced by a differential expansion sensor, the differential expansion sensor and the shaft displacement sensor 4 are respectively connected to the two front The output terminals of the two pre-processors 3 are connected with the data acquisition device 2, the data acquisition device 2 is connected with the computer 1, and the key phase sensor 5 is installed beside the measuring groove 6 on the surface of the rotor 7 or the extension shaft of the rotor 5 , and the probe of the key phase sensor 5 is facing the measurement groove 6, the differential expansion sensor is facing the rotor end face of the turbogenerator set, and is perpendicular to the rotor end face, the resolution of the data acquisition equipment is greater than or equal to 16bit, and the number of cha...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a steam turbine generator unit rotor eccentricity and phase measuring device and method. The device comprises a key phase sensor and a shaft displacement sensor, wherein the key phase sensor and the shaft displacement sensor are respectively connected with two preposed device; the output ends of the two preposed devices are connected with data acquisition equipment, the data acquisition equipment is connected with a computer, the key phase sensor is installed beside a measuring groove in the circumferential surface of a rotor or a rotor extension shaft, a probe of the key phase sensor directly faces the measuring groove, and the shaft displacement sensor directly faces the rotor end surface of the steam turbine generator unit and is perpendicular to the rotor end surface. According to the invention, the eccentricity and phase of the rotor of the steam turbine generator can be measured, the bending condition of the rotor is mastered, and the steam turbine generator unit is guided to perform operations such as cylinder holding, unit turning and impulse starting; the rotor bending state caused by turbine water inflow, turbine generator unit shafting friction and the like can be judged, and qualitative judgment of the rotor bending degree and quantitative judgment of the circumferential position of shaft bending are achieved through accurate measurement of rotor eccentricity.

Description

technical field [0001] The invention relates to a device and method for measuring rotor eccentricity and its phase of a turbogenerator set, and belongs to the technical field of rotor eccentricity and phase measurement of a turbogenerator set. Background technique [0002] The steam turbine generator set is an important equipment in a thermal power plant, which is responsible for converting heat energy into electrical energy. The eccentricity of the turbogenerator is an important data for the safe operation of the unit, an important reference for the bending degree of the rotor of the turbogenerator, one of the important parameters monitored during the startup and shutdown process, and an important basis for the startup of the turbogenerator. At present, the eccentric probe of the steam turbine generator set is generally set at the position of the machine head and facing the surface of the rotor. This setting is affected by the oil pressure fluctuation of the jacking shaft o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01B11/02G01B11/27G01B7/02G01B7/312
CPCG01B7/02G01B7/312G01B11/02G01B11/27
Inventor 张世海邓彤天李志凌文贤馗徐章福兰中秋冉景川钟晶亮马新惠王文强王锁斌王涵熊波
Owner GUIZHOU POWER GRID CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap