Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Vibration closed-loop control structure for turbine mechanical cylinder and adjustment method of vibration closed-loop control structure

A technology of closed-loop control and turbomachinery, applied in mechanical oscillation control, control/regulation system, non-electric variable control, etc., can solve problems such as continuous operation, reduce difficulty, shorten design cycle, and improve safety and reliability.

Inactive Publication Date: 2018-06-29
DONGFANG TURBINE CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After adopting the present invention, it is not necessary to accurately calculate the vibration characteristics of the cylinder, which greatly reduces the design difficulty, shortens the design cycle, improves the operating reliability of the unit, and can perfectly solve the problem that the variable speed turbomachinery cannot run continuously at certain specific speeds

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
  • Vibration closed-loop control structure for turbine mechanical cylinder and adjustment method of vibration closed-loop control structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] like figure 1 As shown, a turbomachinery cylinder vibration closed-loop control structure includes a cylinder 1, a vibration sensor 2, a signal collector 3, a computer 4, a controller 5, a damping-elastic element 6 and a foundation 7. The vibration sensor 2 is installed on the cylinder 1 . The cylinder 1 and the foundation 7 are connected by a damping-elastic element 6 . The vibration sensor 2, the signal collector 3, the computer 4, and the controller 5 are connected through a signal link, the controller 5 and the damping-elastic element 6 are connected through an adjustment mechanism, and the damping-elastic element 6 and the computer 4 are connected through a signal link connect.

[0026] A method for adjusting a turbomachinery cylinder vibration closed-loop control structure, comprising the following steps:

[0027] 1) Install the vibration sensor 2 on the cylinder 1; and install the damping-elastic element 6 between the cylinder 1 and the foundation 7;

[0028]...

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 vibration closed-loop control structure for a turbine mechanical cylinder and an adjustment method of the vibration closed-loop control structure. The adjustment method of the vibration closed-loop control structure comprises the following steps: (1) mounting a vibration sensor on the cylinder, and mounting a vibration attenuation actuator between the cylinder and a foundation; (2) connecting the vibration sensor, a signal acquirer, a computer and a controller by using signal links; (3) connecting the vibration attenuation actuator to the controller; (4) connecting the vibration attenuation actuator to the computer by using a signal link; (5) acquiring and analyzing, by the computer, a vibration signal by using the signal acquirer, making a control strategy with reference to state parameters of the current vibration attenuation actuator, and generating, by the controller, a control action according to the control strategy, and adjusting characteristic parameters of the vibration attenuation actuator; (6) feeding back a control action actuation effect to the computer again in the form of measurement data of the vibration sensor, making a new control strategy again, and performing the operation repeatedly until cylinder vibration meets a requirement. The vibration closed-loop control structure reduces the design difficulty of a unit, shortens the designperiod and improves the operation reliability.

Description

technical field [0001] The invention relates to a turbomachinery, in particular to a closed-loop control and adjustment method for the vibration of a turbomachinery cylinder. Background technique [0002] Turbine machinery is an important industrial equipment, which is widely used in power industry, petrochemical industry, power drag and other fields. It consists of a rotor part and a stator part. Among them, the cylinder is its most important stator component. Vibration and fatigue problems caused by dynamic excitation forces generated by the rotation of rotor components are the most important factors affecting the safety of equipment. For the case where the rotor is supported on the cylinder, the excessive vibration amplitude of the cylinder may lead to aggravated vibration of the rotor, which directly leads to catastrophic accidents. Therefore, in order to ensure the safety of the cylinder vibration, precise calculation, design and manufacture are required to control t...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G05D19/02
CPCG05D19/02
Inventor 赵仕志张晓东侯明军王鑫刘东旗倪长辉王娟胥睿陈贝贝陈晓平成露陈铁宁章艳刘金芳
Owner DONGFANG TURBINE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com