Fluorescent optical fiber temperature measurement tester for generator rotor

Abstract

The utility model discloses a fluorescent optical fiber temperature measurement tester for a generator rotor, and belongs to the technical field of optical fiber temperature measurement. A fluorescent optical fiber temperature measurement tester for a generator rotor comprises a motor, a stator module, a rotor module, a test board and a rotating seat. An output shaft of the motor is connected with a rotating shaft, a rotor module is coaxially arranged on the outer side of the rotating shaft and rotates along with the rotating shaft, a stator module is coaxially arranged on the outer side of the rotor module, and the rotor module rotates relative to the stator module. The test bench and the motor are respectively located at two opposite sides of the rotor module, and the test bench is provided with a rotating seat which synchronously rotates along with the rotor module; a rotating end of a fluorescent optical fiber temperature measuring device is fixedly mounted on the rotating seat; the fixed end and the rotating end of the fluorescent optical fiber temperature measuring device are coaxially arranged, but have a gap; and an optical fiber probe connected with the rotating end of the fluorescent optical fiber temperature measuring device is arranged at a to-be-measured position of the rotor module.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber sensors, in particular to a generator rotor fluorescent optical fiber temperature measurement test machine. Background Art

[0002] Temperature monitoring of the rotors of hydro-turbine generators, thermal generators, and wind turbines is an important parameter for understanding the operating status of the motor and ensuring safe operation. Existing motor temperature monitoring systems generally calculate rotor temperature through stator monitoring or infrared monitoring, which has certain deviations and cannot verify accuracy. Multi-point real-time detection of rotor temperature is an important guarantee for the safe operation of the generator.

[0003] Fluorescent fiber temperature measurement uses fluorescent fiber for temperature sensing and uses the relationship between the life of the fluorescent material and the temperature to calculate the temperature of the object being measured. It has the characteristics of strong anti-electromagnetic interference ability, high sensitivity, and good stability. Rotor fiber temperature measurement needs to solve technical bottlenecks such as wireless power supply, wireless optical communication, fluorescence excitation and detection, and fluorescent fiber preparation. In order to ensure the effectiveness, safety and stability of the system, it is necessary to carry out experimental tests on the simulator to ensure the safety of the unit operation and the monitoring effect after installation. Utility Model Content

[0004] The utility model aims to provide a generator rotor fluorescent optical fiber temperature measurement test machine, which is used as a simulator to verify the fluorescent optical fiber temperature measurement system and solve the problems in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A generator rotor fluorescent optical fiber temperature measurement test machine, comprising a motor, a stator module, a rotor module, a test bench, and a rotating seat;

[0007] The output shaft of the motor is connected to a rotating shaft, a rotor module is coaxially arranged outside the rotating shaft, the rotor module rotates with the rotating shaft, a stator module is coaxially arranged outside the rotor module, and the rotor module rotates relative to the stator module;

[0008] The test bench and the motor are located on opposite sides of the rotor module, and a rotating seat is provided on the test bench to rotate synchronously with the rotor module;

[0009] The rotating seat is fixedly provided with a rotating end of a fluorescent optical fiber temperature measuring device; the fixed end of the fluorescent optical fiber temperature measuring device is arranged on one side of the rotating end, and a gap is formed between the two;

[0010] The fluorescent optical fiber probe connected to the rotating end of the fluorescent optical fiber temperature measuring device is arranged at the position of the rotor module to be measured.

[0011] As a preferred technical solution, the end of the rotating shaft is connected to the rotating seat, so that the rotating seat rotates synchronously with the rotor module.

[0012] As a preferred technical solution, the rotating shaft and the rotating seat are hollow structures, and the optical fiber probe of the fluorescent optical fiber temperature measuring device passes through the rotating seat and the rotating shaft and then extends from the rotating shaft to enter the rotor module.

[0013] As a preferred technical solution, it also includes a hanger, and the fixed end of the fluorescent optical fiber temperature measuring device is detachably connected to the hanger.

[0014] As a preferred technical solution, it also includes a bracket, which is fixed on the test bench, and the rotating end and the fixed end are respectively located on two sides of the bracket. There is a certain gap between the bracket and the rotating end so as not to interfere with the rotation of the rotating end. The fixed end is placed on the bracket, and an opening with a size smaller than the fixed end is provided on the bracket, and the opening is located between the fixed end and the rotating end.

[0015] As a preferred technical solution, it also includes an installation platform, which includes an outer table top and a radiating bracket inside the outer table top; the rotating shaft passes through the center of the radiating bracket and is rotatably connected to the radiating bracket; the stator module is fixed on the outer table top of the installation platform; the rotor module is connected to the rotating shaft through a connecting piece, so that when the motor rotates, it drives the rotor module to rotate relative to the stator module.

[0016] As a preferred technical solution, it also includes a display screen, which is provided with a communication interface for communicating with the fluorescent optical fiber temperature measuring device.

[0017] As a preferred technical solution, the rotor module includes a radial rotor bracket, the outer circumference of the rotor bracket is evenly distributed with magnetic poles, the magnetic poles are provided with windings, the rotor bracket is hollow, and the fluorescent fiber optic probe can pass through the rotor bracket.

[0018] As a preferred technical solution, it also includes a cabinet, in which the rotor module, the stator module, the motor, the test bench, and the rotating seat are arranged.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] In the utility model, a rotating seat which rotates simultaneously with the rotor module is designed to install the fluorescent optical fiber temperature measuring device, so as to complete the test of the fluorescent optical fiber temperature measuring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 3 It is a cross-sectional view of the utility model.

[0024] The reference numerals are as follows:

[0025] 1-cabinet, 2-display screen, 3-rotating disk, 4-motor, 5-mounting plate, 6-outer table, 7-rotating shaft, 8-radiating bracket, 9-rotor module, 10-stator module, 11-test platform, 12-rotating seat, 13-rotating end, 14-fixed end, 15-hanging bracket. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] On the contrary, the present application covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present application as defined by the claims. Further, in order to make the public have a better understanding of the present application, some specific details are described in detail in the detailed description of the present application below. Those skilled in the art can fully understand the present application without the description of these details.

[0028] Example

[0029] like Figure 1-3 As shown, a generator 4 rotor fluorescent fiber optic temperature measurement test machine includes a cabinet 1, a motor 4, a rotor module 9, a stator module 10, a test platform 11, and a display screen 2.

[0030] The cabinet 1 is provided with a motor frame 4, a mounting plate 5, and a test bench from bottom to top. A motor 4 is installed at the bottom of the motor frame 4, and the output shaft passes through the motor frame 4 upward. The output shaft of the motor 4 is connected to a rotating shaft 7 through a coupling.

[0031] A horizontally placed mounting plate 5 detachably connected to the cabinet 1 is provided above the motor frame 4, a mounting platform is provided on the top of the mounting plate 5, a radial bracket 8 is provided in the middle of the mounting platform, a rotating shaft 7 passes through the radial bracket 8, and the top of the rotating shaft 7 is rotatably connected to the test bench through a rotating shaft 7 bearing; the upper and lower ends of the rotating shaft 7 are supported by the test bench and the mounting platform.

[0032] Specifically, the installation platform includes an outer table 6 and a radiation bracket 8 located inside the outer table 6. A notch is provided on the outer table 6 to facilitate manual intervention of the internal structure for assembly.

[0033] The structural design of the mounting platform is used to assemble the rotor module 9 and the stator module 10; the stator housing is fixed on the outer table surface 6 of the mounting platform; the rotor module 9 is connected to the rotating shaft 7 through a connecting piece, so that when the motor 4 rotates, the rotor module 9 is driven to rotate relative to the stator module 10.

[0034] The test platform 11 is provided with a rotating disk 3, an annular groove is provided on the test platform 11, and a roller located in the annular groove is provided at the bottom of the rotating disk 3 to guide the rotating disk 3 to rotate relative to the test platform 11. A rotating seat 12 is fixedly installed on the rotating disk 3.

[0035] The rotating shaft 7 and the rotating seat 12 are both hollow structures. The top of the rotating shaft 7 passes through the rotating disk 3 and is connected to the rotating seat 12. The rotating shaft 7 and the rotating seat 12 are connected by a connecting piece.

[0036] The top of the rotating seat 12 is used to install the rotating end 13 of the fluorescent fiber optic temperature measuring device. The fixed end 14 of the fluorescent fiber optic temperature measuring device is located directly above the rotating end 13, and there is a certain gap between the two. The rotating end 13 rotates with the rotating seat 12, and the fixed end 14 is stationary.

[0037] In this embodiment, the fixing end 14 can be fixed in the cabinet 1 in two ways:

[0038] One is that a hanger 15 is provided on the top of the cabinet 1, the fixed end 14 is connected to the top of the hanger 15 through a connector, a thread is provided on the upper portion of the hanger 15, the top of the cabinet 1 is threadedly connected to the hanger 15, and the height of the hanger 15 can be adjusted.

[0039] Another is that a bracket is provided on the test platform 11, the rotating end 13 is located below the bracket, the fixed end 14 is located above the bracket, the fixed end 14 is supported by the bracket, and there is a gap between the rotating end 13 and the bracket; an opening is provided on the bracket, and the opening is located between the rotating end 13 and the fixed end 14.

[0040] The cabinet 1 is also provided with a display screen 2, which is provided with a communication interface connected to the fluorescent optical fiber temperature measuring device to display the temperature measurement data.

[0041] The optical fiber probe of the fluorescent optical fiber temperature measuring device is connected to the rotating end 13 , and the optical fiber probe passes through the rotating shaft 7 , the rotating shaft 7 , and then passes out from the rotating shaft 7 , extends into the rotor module 9 , and is arranged at the temperature measuring point of the rotor module 9 .

[0042] The rotor module 9 comprises a radial rotor support, the outer circumference of which is evenly distributed with magnetic poles, on which windings are arranged, and the rotor support is hollow, through which the fluorescent optical fiber probe can pass.

[0043] The rotating end 13 of the optical fiber fluorescence temperature measuring device includes a housing and an optical communication element, a main control chip, and a fluorescent optical fiber temperature measuring circuit arranged inside the housing; the main control chip is connected to the optical communication element and the fluorescent optical fiber temperature measuring circuit; the fluorescent optical fiber temperature measuring circuit is connected to the fluorescent optical fiber probe;

[0044] The fixed end 14 includes a housing, an optical communication element and a main control chip arranged in the housing, and the main control chip is connected to the optical communication element; the fixed end 14 and the rotating end 13 complete information exchange through the optical communication element.

[0045] It is worth noting that, based on the above structural design, in order to solve the same technical problem, even if some insubstantial improvements are made on the present invention, they also fall within the protection scope of the present invention.

Claims

1. A generator rotor fluorescent optical fiber temperature measurement tester, characterized in that: Including motor, stator module, rotor module, test bench, rotating seat; The output shaft of the motor is connected to a rotating shaft, a rotor module is coaxially arranged outside the rotating shaft, the rotor module rotates with the rotating shaft, a stator module is coaxially arranged outside the rotor module, and the rotor module rotates relative to the stator module; The test bench and the motor are located on opposite sides of the rotor module, and a rotating seat is provided on the test bench to rotate synchronously with the rotor module; The rotating seat is fixedly provided with a rotating end of a fluorescent optical fiber temperature measuring device; the fixed end of the fluorescent optical fiber temperature measuring device is arranged on one side of the rotating end, and a gap is formed between the two; The fluorescent optical fiber probe connected to the rotating end of the fluorescent optical fiber temperature measuring device is arranged at the position of the rotor module to be measured.

2. A generator rotor fluorescent optical fiber temperature measurement tester according to claim 1, characterized in that: The end of the rotating shaft is connected to the rotating seat, so that the rotating seat rotates synchronously with the rotor module.

3. A generator rotor fluorescent optical fiber temperature measurement tester according to claim 2, characterized in that: The rotating shaft and the rotating seat are hollow structures. The optical fiber probe of the fluorescent optical fiber temperature measuring device passes through the rotating seat and the rotating shaft and then extends from the rotating shaft to enter the rotor module.

4. A generator rotor fluorescent optical fiber temperature measurement tester according to claim 1, characterized in that: It also includes a hanger, and the fixed end of the fluorescent optical fiber temperature measuring device is detachably connected to the hanger.

5. The generator rotor fluorescent optical fiber temperature measurement tester according to claim 1, characterized in that: It also includes a bracket, which is fixed on the test bench. The rotating end and the fixed end are respectively located on two sides of the bracket. There is a certain gap between the bracket and the rotating end so as not to interfere with the rotation of the rotating end. The fixed end is placed on the bracket. An opening with a size smaller than the fixed end is provided on the bracket, and the opening is located between the fixed end and the rotating end.

6. A generator rotor fluorescent optical fiber temperature measurement tester according to claim 1, characterized in that: It also includes an installation platform, which includes an outer table top and a radiating bracket inside the outer table top; the rotating shaft passes through the center of the radiating bracket and is rotatably connected to the radiating bracket; the stator module is fixed on the outer table top of the installation platform; the rotor module is connected to the rotating shaft through a connecting piece, so that when the motor rotates, it drives the rotor module to rotate relative to the stator module.

7. The generator rotor fluorescent optical fiber temperature measurement tester according to claim 1 is characterized in that: It also includes a display screen, which is provided with a communication interface to communicate with the fluorescent optical fiber temperature measuring device.

8. The generator rotor fluorescent optical fiber temperature measurement tester according to claim 1, characterized in that: The rotor module comprises a radial rotor support, magnetic poles are evenly distributed on the outer circumference of the rotor support, windings are arranged on the magnetic poles, the rotor support is hollow, and the fluorescent optical fiber probe can pass through the rotor support.

9. The generator rotor fluorescent optical fiber temperature measurement tester according to claim 1, characterized in that: It also includes a cabinet, in which the rotor module, the stator module, the motor, the test bench and the rotating seat are arranged.

Images