Infrared thermal imaging on-line monitoring device for excitation slip ring of hydro-generator

Abstract

The utility model discloses an infrared thermal imaging on-line monitoring device for an excitation slip ring of a hydro-generator, and relates to the technical field of generator monitoring. The infrared thermal imaging hydro-generator excitation slip ring on-line monitoring device comprises a base, a vertical pipe is fixedly installed on the upper surface of the base, a telescopic rod is inserted into the top of the vertical pipe, a cylinder is arranged at the top of the telescopic rod, the top of the cylinder is in threaded connection with an infrared sensor, an insertion rod is inserted into one side of the vertical pipe, and the insertion rod is in threaded connection with the cylinder. The base is fixed to the position where installation is needed, then the telescopic rod is inserted into the vertical pipe, then the baffle on the insertion rod is loosened, the insertion rod on the baffle is reset through the reset spring, and therefore the telescopic rod can be conveniently positioned and inserted, and then the infrared sensor is tightened, so that the device can be conveniently fixed and installed; and therefore, subsequent use is facilitated, the use convenience of the device is improved, and the use efficiency of the device is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of generator monitoring, in particular to an infrared thermal imaging on-line monitoring device for excitation slip rings of a water turbine generator. Background Art

[0002] A hydroelectric generator is a generator that uses a turbine as a prime mover to convert water energy into electrical energy. When water flows through the turbine, it converts water energy into mechanical energy. The turbine shaft drives the rotor of the generator to convert mechanical energy into electrical energy for output. It is the main power equipment for producing electricity in a hydropower station. The hydroelectric generator is driven by a turbine. Its rotor is short and thick. The time required for starting and connecting to the grid is short, and the operation and scheduling are flexible. In addition to general power generation, it is particularly suitable as a peak-shaving unit and an emergency standby unit. The maximum capacity of the hydroelectric generator unit has reached 800,000 kilowatts. The existing patent, patent announcement number CN204027718U, discloses an online temperature monitoring device for a generator rotor winding, aiming to provide an online temperature monitoring device with high measurement accuracy. It comprises a DC excitation power supply connected to two slip rings of a rotor through a carbon brush group to form a loop, a voltage divider and a current divider connected in the loop; the voltage divider (12) is directly connected between the two carbon brush groups (1) or between the two auxiliary carbon brushes (13); the voltage divider (12) is connected to a temperature measuring device (7) through a voltage transmitter (11), and the current divider (9) is connected to a temperature measuring device (7) through a current transmitter (8). The utility model eliminates the influence of the external loop resistance of the rotor winding on the temperature measurement, improves the measurement accuracy, and is a device for online monitoring the rotor winding temperature of a generator.

[0003] Regarding the above-mentioned related technologies, the inventors believe that the following defects exist: in actual application, they need to be installed and positioned. If it is not convenient to install and position them during subsequent use, it will affect the convenience of using the device and be inconvenient for subsequent normal use. Therefore, we propose an infrared thermal imaging online monitoring device for the excitation slip ring of a hydro-turbine generator to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an infrared thermal imaging on-line monitoring device for the excitation slip ring of a hydro-turbine generator, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: an infrared thermal imaging online monitoring device for the excitation slip ring of a hydro-turbine generator, comprising a base, a vertical pipe is fixedly installed on the upper surface of the base, a telescopic rod is inserted into the top of the vertical pipe, a cylinder is arranged on the top of the telescopic rod, an infrared sensor is threadedly connected to the top of the cylinder, an insertion rod is inserted into one side of the vertical pipe, a baffle is fixedly installed at one end of the insertion rod, a reset spring is arranged around the surface of the insertion rod, and one end of the insertion rod is located inside the vertical pipe and is plugged into one side of the telescopic rod.

[0006] A partition is fixedly installed inside the cylinder, a buffer sheet is fixedly installed at the bottom of the partition, the bottom of the buffer sheet is fixedly connected through the buffer plate, and the bottom of the buffer plate is fixedly connected to the top of the telescopic rod.

[0007] Preferably, mounting plates are fixedly mounted at the four corners of the bottom of the base, mounting holes are provided on the mounting plates, the mounting holes are oblong holes, and anti-slip grooves are provided on the lower surface of the mounting plates.

[0008] Preferably, elastic bands are fixedly mounted on both sides of the bottom of the base, and anti-slip grooves are formed on the inner walls of the elastic bands.

[0009] Preferably, an anti-slip strip is fixedly installed on the inner wall of the vertical tube, and the surface of the anti-slip strip contacts the surface of the telescopic rod. A limiting rod is fixedly installed on the inner bottom wall of the vertical tube, and the top of the limiting rod passes through the bottom of the telescopic rod and is plugged into the bottom of the telescopic rod.

[0010] Preferably, one end of the return spring is fixedly connected to one side of the baffle, and the other end of the return spring is fixedly connected to one side of the vertical pipe. One side of the vertical pipe is provided with a socket for the insertion rod to pass through, and the inner wall of the socket is slidably connected to the surface of the insertion rod.

[0011] Preferably, a plug hole for the plug rod to be plugged into is opened on one side of the telescopic rod, and the inner wall of the plug hole is plugged into one end of the plug rod, and a limiting hole for the limiting rod to pass through is opened at the bottom of the telescopic rod.

[0012] Preferably, a handle is fixedly mounted on one side of the baffle, and the surface of the handle is provided with anti-slip grooves.

[0013] Beneficial Effects

[0014] The utility model provides an infrared thermal imaging on-line monitoring device for excitation slip rings of a hydro-turbine generator. Compared with the prior art, it has the following beneficial effects:

[0015] The infrared thermal imaging hydro-turbine generator excitation slip ring online monitoring device fixes the base at the position where it needs to be installed, then inserts the telescopic rod into the interior of the vertical pipe, then loosens the baffle on the rod, and the reset spring resets the rod on the baffle, thereby facilitating the positioning and insertion of the telescopic rod, and then tightens the infrared sensor to facilitate the fixed installation operation of the device, thereby facilitating subsequent use, improving the convenience of using the device, and thereby improving the use efficiency of the device.

[0016] At the same time, the buffer sheet buffers the telescopic rod on the buffer plate. When the device is subjected to external force, the cylinder can swing on the telescopic rod, thereby facilitating the buffering operation of the infrared sensor. During subsequent use, the stability of the components in the device is maintained, the use efficiency of the device is improved, and it is also convenient for subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the vertical pipe of the utility model;

[0019] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the cylinder of the utility model;

[0020] Figure 4 For this utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0021] In the figure: 1. base; 2. vertical tube; 3. telescopic rod; 4. cylinder; 5. infrared sensor; 6. plug rod; 7. baffle; 8. reset spring; 9. partition; 10. buffer sheet; 11. buffer plate; 12. mounting plate; 13. elastic band; 14. anti-slip strip; 15. limit rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model provides a technical solution: an infrared thermal imaging online monitoring device for the excitation slip ring of a hydro-turbine generator, comprising a base 1, a vertical pipe 2 is fixedly installed on the upper surface of the base 1, a telescopic rod 3 is inserted at the top of the vertical pipe 2, a cylinder 4 is arranged on the top of the telescopic rod 3, an infrared sensor 5 is threadedly connected to the top of the cylinder 4, an insertion rod 6 is inserted at one side of the vertical pipe 2, a baffle 7 is fixedly installed at one end of the insertion rod 6, a reset spring 8 is arranged around the surface of the insertion rod 6, and one end of the insertion rod 6 located inside the vertical pipe 2 is plugged into one side of the telescopic rod 3.

[0024] Fix the base 1 at the position where it needs to be installed, then insert the telescopic rod 3 into the interior of the vertical pipe 2, then loosen the baffle 7 on the plug rod 6, and the reset spring 8 resets the plug rod 6 on the baffle 7, thereby facilitating the positioning and insertion of the telescopic rod 3, and then tighten the infrared sensor 5 to facilitate the fixed installation operation of the device, thereby facilitating subsequent use, improving the convenience of using the device, and thereby improving the use efficiency of the device.

[0025] A partition 9 is fixedly installed inside the cylinder 4 , a buffer sheet 10 is fixedly installed at the bottom of the partition 9 , the bottom of the buffer sheet 10 is fixedly connected via a buffer plate 11 , and the bottom of the buffer plate 11 is fixedly connected to the top of the telescopic rod 3 .

[0026] The buffer sheet 10 buffers the telescopic rod 3 on the buffer plate 11. When the device is subjected to external force, the cylinder 4 can swing on the telescopic rod 3, thereby facilitating the buffering operation of the infrared sensor 5. During subsequent use, the stability of the components in the device is maintained, the use efficiency of the device is improved, and it is also convenient for subsequent use.

[0027] See also Figure 1 The four corners of the bottom of the base 1 are fixedly mounted with mounting plates 12, the mounting plates 12 are provided with mounting holes, the mounting holes are oblong holes, and the lower surface of the mounting plates 12 is provided with anti-slip grooves.

[0028] The provided mounting plate 12 achieves the effect of facilitating the installation and positioning of the device during use, thereby facilitating subsequent use and improving the installation stability of the device.

[0029] See also Figure 1 Elastic bands 13 are fixedly installed on both sides of the bottom of the base 1, and the inner wall of the elastic band 13 is provided with anti-slip grooves.

[0030] The elastic band 13 provided at the same time facilitates the positioning and tightening operation during use, and is convenient for subsequent use.

[0031] See also Figure 2An anti-slip strip 14 is fixedly installed on the inner wall of the vertical tube 2, and the surface of the anti-slip strip 14 contacts the surface of the telescopic rod 3. A limiting rod 15 is fixedly installed on the inner bottom wall of the vertical tube 2, and the top of the limiting rod 15 passes through the bottom of the telescopic rod 3 and is plugged into the bottom of the telescopic rod 3.

[0032] The provision of the anti-slip strip 14 can increase the stability of the telescopic rod 3 during use, and the provision of the limiting rod 15 can prevent the telescopic rod 3 from shaking during use, thereby facilitating subsequent use.

[0033] See also Figure 4 One end of the return spring 8 is fixedly connected to one side of the baffle 7, and the other end of the return spring 8 is fixedly connected to one side of the vertical pipe 2. A socket for the insertion rod 6 to pass through is opened on one side of the vertical pipe 2, and the inner wall of the socket is slidably connected to the surface of the insertion rod 6.

[0034] The setting of the reset spring 8 achieves the effect of facilitating the pulling and resetting thereof, thereby facilitating subsequent use and improving the convenience of subsequent use.

[0035] See also Figure 1 - Figure 2 A plugging hole for the plugging rod 6 is provided on one side of the telescopic rod 3, and the inner wall of the plugging hole is plugged with one end of the plugging rod 6, and a limiting hole for the limiting rod 15 to pass through is provided at the bottom of the telescopic rod 3.

[0036] See also Figure 1 and Figure 4 A handle is fixedly mounted on one side of the baffle 7, and the surface of the handle is provided with anti-slip grooves.

[0037] When working, fix the base 1 at the position where it needs to be installed, then insert the telescopic rod 3 into the interior of the vertical pipe 2, then loosen the baffle 7 on the plug rod 6, and the reset spring 8 resets the plug rod 6 on the baffle 7, so as to facilitate the positioning and insertion of the telescopic rod 3, and then tighten the infrared sensor 5 to facilitate the fixed installation operation of the device, so as to facilitate the subsequent use, improve the convenience of using the device, thereby improving the use efficiency of the device, and the buffer sheet 10 buffers the telescopic rod 3 on the buffer plate 11. When the device is subjected to external force, the cylinder 4 can swing on the telescopic rod 3, so as to facilitate the buffering operation of the infrared sensor 5. In the subsequent use process, the stability of the components in the device is maintained, the use efficiency of the device is improved, and it is also convenient for subsequent use.

[0038] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. An infrared thermal imaging on-line monitoring device for excitation slip rings of a hydro-turbine generator, comprising a base (1), characterized in that: A vertical tube (2) is fixedly mounted on the upper surface of the base (1), a telescopic rod (3) is inserted into the top of the vertical tube (2), a cylinder (4) is arranged on the top of the telescopic rod (3), an infrared sensor (5) is threadedly connected to the top of the cylinder (4), an insertion rod (6) is inserted into one side of the vertical tube (2), a baffle (7) is fixedly mounted on one end of the insertion rod (6), a return spring (8) is arranged around the surface of the insertion rod (6), and one end of the insertion rod (6) located inside the vertical tube (2) is plugged into one side of the telescopic rod (3); A partition plate (9) is fixedly installed inside the cylinder (4), a buffer plate (10) is fixedly installed at the bottom of the partition plate (9), the bottom of the buffer plate (10) is fixedly connected via a buffer plate (11), and the bottom of the buffer plate (11) is fixedly connected to the top of the telescopic rod (3).

2. According to claim 1, an infrared thermal imaging on-line monitoring device for excitation slip rings of a hydro-turbine generator is characterized in that: The four corners of the bottom of the base (1) are fixedly mounted with mounting plates (12), the mounting plates (12) are provided with mounting holes, the mounting holes are oblong holes, and the lower surface of the mounting plates (12) is provided with anti-slip grooves.

3. According to claim 1, an infrared thermal imaging on-line monitoring device for excitation slip rings of a hydro-turbine generator is characterized in that: Elastic bands (13) are fixedly mounted on both sides of the bottom of the base (1), and anti-slip grooves are formed on the inner wall of the elastic band (13).

4. According to claim 1, an infrared thermal imaging on-line monitoring device for excitation slip rings of a hydro-turbine generator is characterized in that: An anti-slip strip (14) is fixedly mounted on the inner wall of the vertical tube (2), the surface of the anti-slip strip (14) contacts the surface of the telescopic rod (3), and a limiting rod (15) is fixedly mounted on the inner bottom wall of the vertical tube (2), the top of the limiting rod (15) passes through the bottom of the telescopic rod (3) and is plugged into the bottom of the telescopic rod (3).

5. According to claim 1, the infrared thermal imaging on-line monitoring device for excitation slip ring of a hydro-turbine generator is characterized in that: One end of the return spring (8) is fixedly connected to one side of the baffle (7), and the other end of the return spring (8) is fixedly connected to one side of the vertical tube (2). One side of the vertical tube (2) is provided with a plug hole for the insertion rod (6) to pass through, and the inner wall of the plug hole is slidably connected to the surface of the insertion rod (6).

6. The infrared thermal imaging on-line monitoring device for excitation slip ring of a hydro-turbine generator according to claim 1 is characterized in that: A plugging hole for the plugging rod (6) is provided on one side of the telescopic rod (3), and an inner wall of the plugging hole is plugged into one end of the plugging rod (6). A limiting hole for the limiting rod (15) to pass through is provided at the bottom of the telescopic rod (3).

7. The infrared thermal imaging on-line monitoring device for excitation slip ring of a hydro-turbine generator according to claim 1 is characterized in that: A handle is fixedly mounted on one side of the baffle (7), and the surface of the handle is provided with anti-slip grooves.

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