Intelligent monitoring device for temperature of thrust bearing bush of hydro-generator

Abstract

The utility model relates to water turbine generator technical field discloses water turbine generator thrust bearing temperature intelligent monitoring device, including slide rotor, the bottom fixedly connected with thrust head of slide rotor, the bottom fixedly connected with mirror plate of thrust head, the bottom rotatably connected with thrust bearing tile of mirror plate, the bottom fixedly connected with thrust bearing seat of thrust bearing tile, the bottom of thrust bearing seat is provided with thrust bearing plate, the bottom fixedly connected with copper foil shell of thrust bearing tile, fixedly connected with arc joint plate between thrust bearing tile and drive copper foil shell, the front side of arc joint plate is provided with connecting block. In the utility model, through setting up arc joint plate structure, connecting temperature sensor probe on arc joint plate structure, then sticking arc joint plate on the bottom of thrust bearing tile, can reduce oil disturbance, slow down elastic metal plastic tile heat conduction delay and traditional temperature sensor anti -magnetic weak etc.

Description

TECHNICAL FIELD

[0001] The utility model relates to water turbine generator technical field especially relates to water turbine generator thrust bearing temperature intelligent monitoring device. BACKGROUND

[0002] Water turbine generator is the core equipment of hydroelectric generation, and its stable operation is crucial to power production. In water turbine generator, thrust bearing plays an important role in supporting the axial force of rotating parts. Because thrust bearing bears huge load and friction force during operation, its temperature change is a key indicator reflecting the working condition of bearing and the stability of unit operation.

[0003] The conventional water turbine generator thrust bearing temperature monitoring method currently usually adopts wired connection sensor and monitoring system. The temperature detector is placed near the water turbine generator thrust bearing, and then the water turbine generator thrust bearing temperature is detected according to the state of the water turbine generator during operation. Then the temperature is recorded in real time in the terminal through the data line.

[0004] The conventional water turbine generator thrust bearing temperature monitoring method currently has certain deficiencies. There is a monitoring error during temperature monitoring. The main reason is that the temperature measurement is disturbed by oil disturbance and is not accurate. Because the elastic plastic bearing has slow heat conduction and time delay, there is a large error. The temperature sensor itself is not resistant to strong magnetic interference, which is not conducive to more accurate temperature recording. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a water turbine generator thrust bearing temperature intelligent monitoring device, which aims at improving the problems of temperature detection error and complex wiring in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: the water turbine generator thrust bearing temperature intelligent monitoring device, including sliding rotor, the bottom of sliding rotor is fixedly connected with thrust head, the bottom of thrust head is fixedly connected with mirror plate, the bottom of mirror plate is rotatably connected with thrust bearing tile, the bottom of thrust bearing tile is fixedly connected with thrust bearing seat, the bottom of thrust bearing seat is provided with thrust bearing plate, the bottom of thrust bearing tile is fixedly connected with copper foil shell, the thrust bearing tile and copper foil shell driven are fixedly connected with arc-shaped connecting plate, the front side of arc-shaped connecting plate is provided with connecting block, the front side of connecting block is fixedly connected with temperature sensor probe, the outside of sliding rotor is provided with annular assembly, the annular assembly is used for protection and energy;

[0007] As a further description of the above technical solution: the outer wall of the arc-shaped connecting plate is provided with a threaded opening, the outer wall of the arc-shaped connecting plate is provided with a connecting opening, the inner wall of the connecting block is threadedly connected with a nut, and the tail portion of the connecting block is provided with a tail shaft.

[0008] As a further description of the above technical solution: the outer diameter of the tail shaft is smaller than the inner diameter of the connecting opening, and the nut and the threaded opening are in threaded connection.

[0009] As a further description of the above technical solution: the bottom of the thrust bearing pad is fixedly connected with the arc-shaped connecting plate, an intelligent algorithm chip is mounted in the temperature sensor probe, and a wireless transmission terminal is fixedly connected to the side wall of the temperature sensor probe.

[0010] As a further description of the above technical solution: the temperature sensor probe is attached to the side edge of the thrust bearing pad, the bottom of each group of thrust bearing pads is connected with the temperature sensor probe, and the outside of each group of temperature sensor probes is provided with the copper foil shell.

[0011] As a further description of the above technical solution: the annular assembly comprises a sealing cover, the bottom of the sealing cover is fixedly connected with a connecting clamping block, and the inner wall of the connecting clamping block is fixedly connected with a lower guide bearing seat.

[0012] As a further description of the above technical solution: the outer side of the connecting clamping block is provided with a lower support center body, the bottom of the lower support center body is fixedly connected with a receiving plate, a thrust bearing oil tank is mounted in the lower support center body, the inner wall of the thrust bearing oil tank is fixedly connected with a fixed block, and the inner wall of the fixed block is provided with a disc type oil cooler.

[0013] As a further description of the above technical solution: the bottom of the thrust bearing plate is fixedly connected with a lower end shaft.

[0014] The utility model has the advantages of the following beneficial effects:

[0015] 1. In the utility model, the temperature sensor probe is connected to the arc-shaped connecting plate structure, and then the arc-shaped connecting plate is attached to the bottom of the thrust bearing pad, which can reduce the oil disturbance, slow down the elastic metal plastic pad heat conduction delay and the weak magnetic resistance of the traditional temperature sensor, and further reduce the temperature measurement error to the minimum, and provide a strong guarantee for the safety of the hydroelectric generating set and unnecessary economic loss.

[0016] 2. In the utility model, a chip containing intelligent algorithm is added inside the traditional temperature sensor, and a copper foil shell is provided outside, which can better avoid the interference of external magnetic field on the signal, so that the experimental data is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A three-dimensional schematic view of the water turbine generator thrust bearing temperature intelligent monitoring device according to the present application;

[0018] Figure 2 A structure schematic view of the disc oil cooler of the water turbine generator thrust bearing temperature intelligent monitoring device according to the present application;

[0019] Figure 3 A structure schematic view of the thrust head of the water turbine generator thrust bearing temperature intelligent monitoring device according to the present application;

[0020] Figure 4 A structure schematic view of the arc-shaped connecting plate of the water turbine generator thrust bearing temperature intelligent monitoring device according to the present application;

[0021] Figure 5 A Figure 3 An enlarged view of structure at A in FIG. 1.

[0022] Legend:

[0023] 1, sliding runner; 2, sealing cover; 3, connecting block; 4, lower guide bearing seat; 5, lower support center body; 6, fixed block; 7, disc oil cooler; 8, receiving plate; 9, thrust bearing plate; 10, thrust bearing seat; 11, thrust bearing pad; 12, copper foil shell; 13, temperature sensor probe; 14, lower end shaft; 15, thrust head; 16, mirror plate; 17, thrust bearing oil tank; 18, arc-shaped connecting plate; 19, connecting port; 20, threaded port; 21, nut; 22, tail shaft; 23, connecting block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] Reference Figures 1-5The utility model provides an embodiment: water -turbine generator thrust bearing bush temperature intelligent monitoring device, including sliding rotor 1, realize the rotation under the action of thrust, the bottom fixedly connected with thrust head 15 of sliding rotor 1, thrust head 15 provides power under the action of water flow and realizes the effect of rotation, the bottom fixedly connected with mirror plate 16 of thrust head 15, main role is to transmit the axial thrust of unit rotating part to thrust bearing bush 11 with thrust bearing bush 11 between formation liquid friction, to bear axial thrust and reduce wear and tear, the bottom rotatably connected with thrust bearing bush 11 of mirror plate 16, realize better connection support and the effect of reducing friction, the bottom fixedly connected with thrust bearing seat 10 of thrust bearing bush 11, can better connect thrust bearing bush 11, realize the effect of reducing friction, the bottom of thrust bearing seat 10 is provided with thrust bearing plate 9, realizes the effect of connection, the bottom fixedly connected with copper foil shell 12 of thrust bearing bush 11, better reduce the interference of magnetic field, between thrust bearing bush 11 and copper foil shell 12 fixedly connected with arc joint plate 18, realize the effect of connection, guarantee that temperature sensor probe 13 can better carry out the temperature detection of probe, the front side of arc joint plate 18 is provided with connecting block 23, the front side fixedly connected with temperature sensor probe 13 of connecting block 23, the outside of sliding rotor 1 is provided with annular assembly, and annular assembly is used for protection and can.

[0026] The outer wall of the arc joint plate 18 is provided with a threaded opening 20, which realizes the stability of connection. The outer wall of the arc joint plate 18 is provided with a connecting opening 19 for connection. The inner wall of the connecting block 23 is threadedly connected with a nut 21. The tail portion of the connecting block 23 is provided with a tail shaft 22 connected with the connecting opening 19.

[0027] The outer diameter of the tail shaft 22 is smaller than the inner diameter of the connecting opening 19. The nut 21 and the threaded opening 20 are threadedly connected to realize stability.

[0028] Referring to Figures 1-5 The bottom of the thrust bearing bush 11 is fixedly connected with the arc joint plate 18. The intelligent algorithm chip is installed in the inside of the temperature sensor probe 13 to detect the temperature more stably. The temperature sensor probe 13 is fixedly connected with a wireless transmission terminal on the side wall to amplify the signal. The temperature sensor probe 13 is attached to the side of the thrust bearing bush 11. The bottom of each group of thrust bearing bush 11 is connected with the temperature sensor probe 13 to detect the temperature better without error. The outside of each group of temperature sensor probe 13 is provided with a copper foil shell 12 to realize the magnetic resistance effect on the magnetic field. The annular assembly comprises a sealing cover 2. The bottom of the sealing cover 2 is fixedly connected with a connecting clamping block 3. The inner wall of the connecting clamping block 3 is fixedly connected with a lower guide bearing seat 4 to realize better connection.

[0029] Referring to Figures 1-3The outer side of the connecting card block 3 is provided with a lower support center body 5, which realizes the support, positioning and conduction of the rotating part, the bottom of the lower support center body 5 is fixedly connected with a receiving plate 8, the inside of the lower support center body 5 is installed with a thrust bearing oil tank 17, which is mainly used for the oil storage and heat dissipation of the water turbine generator, the inner wall of the thrust bearing oil tank 17 is fixedly connected with a fixed block 6, the inner wall of the fixed block 6 is provided with a disc type oil cooler 7, which realizes the liquid heat dissipation effect, the bottom of the thrust bearing plate 9 is fixedly connected with a lower end shaft 14, which realizes the external connection effect.

[0030] Working principle: the water turbine rotates under the impact of water flow, the shaft of the water turbine is connected with the slip rotor 1 of the generator, thereby driving the slip rotor 1 of the generator to rotate in the magnetic field, the thrust bearing tile 11 bears the axial thrust, the bearing arranged in the inside of the lower guide bearing bears the radial force, so as to ensure the stable rotation of the slip rotor 1, at the same time, the connection and fixed structure between the parts bear the corresponding mechanical stress, at this time, the thrust bearing tile 11 is in contact with the mirror plate 16 when working, when rotating at high speed, the thrust bearing tile 11 will generate high temperature, the temperature sensor probe 13 arranged in the front section of the arc-shaped connecting plate 18 connected at the bottom of the thrust bearing tile 11 will transmit the measured temperature to the wireless transmission terminal beside, the wireless transmission terminal radiates the temperature in the form of wireless signal in a large area, at this time, the copper foil shell 12 arranged outside the temperature sensor probe 13 can resist magnetic interference, so as to realize the accurate temperature measurement, then the RS485 concentrator is used to receive the radiated wireless signal, finally the wireless signal is transmitted to the inside of the computer through the USB, and finally the real temperature inside the thrust bearing tile is displayed on the computer.

[0031] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A hydroelectric generator thrust bearing temperature intelligent monitoring device, comprising a slip rotor (1), characterized in that: The bottom of the sliding rotor (1) is fixedly connected with a thrust head (15), the bottom of the thrust head (15) is fixedly connected with a mirror plate (16), the bottom of the mirror plate (16) is rotatably connected with a thrust bearing tile (11), the bottom of the thrust bearing tile (11) is fixedly connected with a thrust bearing seat (10), the bottom of the thrust bearing seat (10) is provided with a thrust bearing plate (9), the bottom of the thrust bearing tile (11) is fixedly connected with a copper foil shell (12), the thrust bearing tile (11) and the copper foil shell (12) are fixedly connected with an arc-shaped connecting plate (18), the front side of the arc-shaped connecting plate (18) is provided with a connecting block (23), the front side of the connecting block (23) is fixedly connected with a temperature sensor probe (13), and the outer portion of the sliding rotor (1) is provided with a ring-shaped assembly.

2. The hydro-generator thrust bearing temperature intelligent monitoring device according to claim 1, characterized in that: The outer wall of the arc-shaped connecting plate (18) is provided with a threaded hole (20), the outer wall of the arc-shaped connecting plate (18) is provided with a connecting hole (19), the inner wall of the connecting block (23) is threadedly connected with a nut (21), and the tail portion of the connecting block (23) is provided with a tail shaft (22).

3. The hydro-generator thrust bearing temperature intelligent monitoring device according to claim 2, characterized in that: The outer diameter of the tail shaft (22) is smaller than the inner diameter of the connecting hole (19), and the nut (21) and the threaded hole (20) are in threaded connection.

4. The hydro-generator thrust bearing temperature intelligent monitoring device according to claim 1, characterized in that: The bottom of the thrust bearing tile (11) is fixedly connected with the arc-shaped connecting plate (18), the inside of the temperature sensor probe (13) is provided with an intelligent algorithm chip, and the side wall of the temperature sensor probe (13) is fixedly connected with a wireless transmission terminal.

5. The hydro-generator thrust bearing temperature intelligent monitoring device according to claim 4, characterized in that: The temperature sensor probe (13) is attached to the side edge of the thrust bearing tile (11), the bottom of each group of thrust bearing tiles (11) is connected with the temperature sensor probe (13), and the outside of each group of temperature sensor probes (13) is provided with the copper foil shell (12).

6. The hydro-generator thrust bearing temperature intelligent monitoring device according to claim 1, characterized in that: The ring-shaped assembly comprises a sealing cover (2), and the bottom of the sealing cover (2) is fixedly connected with a connecting clamping block (3).

7. The hydro-generator thrust bearing temperature intelligent monitoring device according to claim 6, characterized in that: The outer side of the connecting clamping block (3) is provided with a lower support center body (5), the bottom of the lower support center body (5) is fixedly connected with a receiving plate (8), the inside of the lower support center body (5) is provided with a thrust bearing oil tank (17), the inner wall of the thrust bearing oil tank (17) is fixedly connected with a fixed block (6), and the inner wall of the fixed block (6) is provided with a disc type oil cooler (7).

8. The hydro-generator thrust bearing temperature intelligent monitoring device according to claim 1, characterized in that: The bottom of the thrust bearing plate (9) is fixedly connected with a lower end shaft (14).

Images