A heating system for rotor thermal bending vibration test
A technology of vibration testing and heating systems, applied in the field of heating systems, can solve the problems of not establishing a rotor radial temperature difference control heating system, etc., and achieve the effect of simple structure and convenient operation
Inactive Publication Date: 2015-10-21
XI AN JIAOTONG UNIV
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although the existing literature has also carried out the measurement experiment of the rotor temperature field and thermal bending deformation, there is no relevant heating system that can realize the control of the radial temperature difference of the rotor.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] The structural principle and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0016] see figure 1 , figure 2 , a heating system for rotor thermal bending vibration test, including a rotor 1, a heating and heat preservation cover 2 is arranged in the middle part of the rotor 1 to heat and keep it warm and prevent heat dissipation, and first heating pipes 3 are evenly arranged on the heat preservation cover 2 along the circumferential direction , the second heating tube 4, the third heating tube 5, the fourth heating tube 6, the fifth heating tube 7 and the sixth heating tube 8;
[0017] see image 3 After the first heating tube 3 and the sixth heating tube 8 are connected in parallel, they are connected to the power supply to form the main circuit of the first heating subsystem 9; the first bidirectional thyristor module is connected in series in the main circuit of the first heating ...
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
Login to View More Abstract
The invention discloses a heating system for rotor thermal bending vibration test. The heating system comprises a rotor, a thermal insulation cover and 3 heating sub-systems, wherein every heating sub-system consists of heating tubes, a temperature controller, bidirectional triode thyristor modules and a sensor used for measuring the surface temperature of the rotor; a heating insulation cover is arranged in the middle of the rotor and is used for heating and performing thermal insulation on the surface of the rotor and preventing heat radiating; the 3 heating sub-systems are independent from each other during heating and temperature controlling; in every sub-system circuit, the corresponding temperature controller receives the temperature signal of the rotor surface and compares with set target temperature, so as to realize the closed-loop control on the surface temperature of the rotor by controlling the conduction angles of the bidirectional triode thyristor modules through calculation in accordance with a control algorithm. The heating system for the rotor thermal bending vibration test provided by the invention can achieve the surface radial temperature difference of the rotor or the surface average temperature of the rotor as required by experiment through grouping or connecting all the heating sub-system circuits.
Description
technical field [0001] The invention relates to the technical field of rotor thermal bending vibration testing, in particular to a heating system for rotor thermal bending vibration testing. Background technique [0002] Rotor systems of rotating machinery such as heavy-duty gas turbines and compressors will cause radial temperature differences due to uneven cooling, uneven lubricating film, and viscosity shear effects, resulting in thermal bending deformation. It will aggravate the vibration of the rotor system, affect the operation stability of the rotating machinery, and even cause serious accidents. Therefore, it is necessary to carry out experimental research on thermal bending vibration of the rotor system to provide a basis for the safe and stable operation of rotating machinery. In the experiment, the temperature field distribution and measurement on the surface of the rotor is the premise of studying the thermal bending vibration response. The realization and contr...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F27B17/02F27D11/02F27D19/00G01H17/00
Inventor 杨利花张岩岩虞烈
Owner XI AN JIAOTONG UNIV