CN210668065U

CN210668065U - Transformer on-line temperature detection device

Info

Publication number: CN210668065U
Application number: CN201921970936.1U
Authority: CN
Inventors: 袁炎
Original assignee: Shanghai Changlu Intelligent Technology Co Ltd
Current assignee: Shanghai Changlu Intelligent Technology Co Ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-06-02
Anticipated expiration: 2029-11-15

Abstract

The utility model discloses an on-line temperature detection device of a transformer, which comprises an oil tank, wherein one side of the oil tank is fixedly connected with a motor frame, the upper side of the motor frame is fixedly provided with a motor through a bolt, the output end of the motor is fixedly connected with a rotating shaft through a coupler, one end of the rotating shaft penetrates through the oil tank through the bearing in a rotating manner, one end of the rotating shaft extends into the oil tank, the surface of the rotating shaft is fixedly connected with a blade, one side of the oil tank is fixedly connected with an L-shaped fixed plate, one side of the L-shaped fixing plate is provided with a through hole, the utility model is provided with a fixing tube and a sealing ring, the insertion depth of the thermocouple thermometer can be adjusted, an L-shaped fixing plate and a pressing plate are arranged to fix the working position of the thermocouple thermometer, the rotating blades are arranged in the oil tank, so that oil in the oil tank is in a slow flowing state, the local temperature difference of the transformer oil is reduced, and the accuracy of temperature measurement is improved.

Description

Transformer on-line temperature detection device

Technical Field

The utility model relates to a transformer temperature detection field specifically is transformer on-line temperature-detecting device.

Background

The winding and iron core of the oil-immersed transformer are all installed in the oil tank filled with transformer oil, and the oil tank is welded by steel plates. The oil tank of the medium and small-sized transformers consists of a tank shell and a tank cover, the transformer body of the transformer is placed in the tank shell, and the tank cover is opened to lift the transformer body out for maintenance. The oil-immersed transformer can improve the insulating property and the cooling property of the transformer and is common in industrial production. When the oil-immersed transformer is used, the internal oil temperature of the oil-immersed transformer needs to be detected so as to improve the safety performance of the oil-immersed transformer.

When the temperature measuring structure measures the temperature of a substance to be measured, the selection of the position is very important, and the influence on the accuracy is large. The temperature measuring structure of part of the transformer online temperature detecting device is inconvenient to adjust the insertion depth, and once the position is not installed correctly, the insertion depth does not reach the use standard, and the working error of the temperature measuring structure is increased; in some online transformer temperature detection devices, oil in a transformer is in a static state, heat convection is inconvenient to carry out, transformer oil can generate local temperature rise, and the measurement of the oil temperature is not accurate.

Disclosure of Invention

An object of the utility model is to provide a transformer on-line temperature detection device sets up fixed pipe and sealing washer, and the depth of insertion of adjustable thermocouple thermometer sets up L shape fixed plate and clamp plate, can fix the operating position of thermocouple thermometer, sets up the pivoted blade in the oil tank, makes the inside fluid of oil tank be in the slow flow state, makes the local difference in temperature of transformer oil reduce, increases the precision of temperature measurement to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the transformer online temperature detection device comprises an oil tank, wherein a motor frame is fixedly connected to one side of the oil tank, a motor is fixedly mounted on the upper side of the motor frame through bolts, the output end of the motor is fixedly connected with a rotating shaft through a coupler, one end of the rotating shaft penetrates through the oil tank through rotation of a bearing, one end of the rotating shaft extends into the oil tank, a blade is fixedly connected to the surface of the rotating shaft, an L-shaped fixing plate is fixedly connected to one side of the oil tank, a through hole is formed in one side of the L-shaped fixing plate, a threaded knob is rotatably connected to one side of the L-shaped fixing plate through threads, a pressing plate is fixedly connected to one end of the threaded knob, an elastic rubber block is fixedly connected to one side of the pressing plate, a fixing pipe is fixedly inserted and, the elastic rubber block is tightly pressed and fixed on the temperature measuring structure.

Preferably, the lower side of the oil tank is fixedly connected with a base, and the surface of the base is provided with a mounting hole.

Preferably, the temperature measuring structure is a thermocouple thermometer.

Preferably, the motor outside is provided with the motor case, motor case one side fixed connection is in the oil tank lateral wall, the louvre has been seted up on motor case surface, motor case one side is connected with the chamber door through the hinge rotation.

Preferably, the upper side of the bottom wall of the oil tank is fixedly connected with an iron core, and the surface of the iron core is fixedly connected with a winding.

Preferably, the motor is a reduction motor.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the L-shaped fixing plate and the pressing plate are arranged to fix the working position of the thermocouple thermometer;

2. the rotating blades are arranged in the oil tank, so that oil in the oil tank is in a slow flowing state, the local temperature difference of the transformer oil is reduced, and the accuracy of temperature measurement is improved.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of a portion A of FIG. 1 according to the present invention;

fig. 3 is a schematic side view of the present invention.

In the figure: 1. an oil tank; 2. an iron core; 3. a motor frame; 4. a motor; 5. a rotating shaft; 6. a blade; 7. an L-shaped fixing plate; 8. a through hole; 9. a threaded knob; 10. pressing a plate; 11. an elastic rubber block; 12. a fixed tube; 13. a seal ring; 14. a temperature measuring structure; 15. a base; 16. mounting holes; 17. a motor case; 18. heat dissipation holes; 19. a box door; 20. and (4) winding.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: transformer on-line temperature detection device, including oil tank 1, the oil tank 1 is equipped with full transformer oil in, can insulate and the cooling effect to the subassembly in the oil tank 1, for the ease of supporting

oil tank

1, 1 downside fixedly connected with base 15 of oil tank, for the ease of installing, has seted up mounting hole 16 on base 15 surface. The iron core 2 is fixedly connected to the upper side of the bottom wall of the oil tank 1, and the winding 20 is fixedly connected to the surface of the iron core 2.

1 one side fixed connection motor frame 3 of oil tank, 3 upsides of motor frame have motor 4 through bolt fixed mounting, for making motor 4 operate more steadily to have the function of reduction gear, set up motor 4 and be gear motor. In order to play the guard action to motor 4, be provided with motor case 17 in the motor 4 outside, motor case 17 one side fixed connection is in 1 lateral wall of oil tank, for the convenience of the heat dissipation of motor 4, has seted up louvre 18 on motor case 17 surface, for the convenience of overhauing motor 4, is connected with chamber door 19 through the hinge rotation in motor case 17 one side.

4 output of motor passes through shaft coupling fixedly connected with

pivot

5, 5 one end of pivot is passed through the bearing and is rotated and run through

oil tank

1, 5 one end of pivot is extended in 1 inside of oil tank, 5 fixed surface of pivot is connected with

blade

6, 1 one side fixedly connected with L shape fixed plate 7 of oil tank, through-hole 8 has been seted up to 7 one side of L shape fixed plate, 7 one side of L shape fixed plate is connected with screw thread knob 9 through the screw thread rotation, 9 one end fixedly connected with clamp plate 10 of screw thread knob, clamp plate 10 one side fixedly connected with

elastic rubber piece

11, 1 one side of oil tank is fixed to be pegged graft and is had fixed pipe 12, fixed pipe 12 is inside to be provided with sealing washer 13. One end of the temperature measuring structure 14 is inserted into the through hole 8, and the elastic rubber block 11 is tightly pressed and fixed on the temperature measuring structure 14.

The working principle is as follows: when the insertion depth of the thermocouple thermometer needs to be adjusted so as to accurately detect the oil temperature, the threaded knob 9 is rotated to enable the pressing plate 10 to loosen the thermocouple thermometer, the thermocouple thermometer is manually pushed or pulled, the insertion depth of the thermocouple thermometer can be adjusted, and the sealing ring 13 can prevent the transformer oil from leaking out; the motor 4 drives the blade 6 to rotate through the rotating shaft 5, so that the transformer oil in the oil tank 1 can be in a slow flowing state, the local temperature difference of the transformer oil is reduced, and the accuracy of temperature measurement is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Transformer on-line temperature detection device, including oil tank (1), its characterized in that: the oil tank is characterized in that a motor frame (3) is fixedly connected to one side of the oil tank (1), a motor (4) is fixedly mounted on the upper side of the motor frame (3) through bolts, a rotating shaft (5) is fixedly connected to the output end of the motor (4) through a coupler, one end of the rotating shaft (5) penetrates through the oil tank (1) through a bearing in a rotating mode, one end of the rotating shaft (5) extends into the oil tank (1), blades (6) are fixedly connected to the surface of the rotating shaft (5), an L-shaped fixing plate (7) is fixedly connected to one side of the oil tank (1), a through hole (8) is formed in one side of the L-shaped fixing plate (7), a threaded knob (9) is rotatably connected to one side of the L-shaped fixing plate (7) through threads, a pressing plate (10) is fixedly connected to one end of the threaded knob (9), the temperature measuring device is characterized in that a sealing ring (13) is arranged inside the fixing pipe (12), a temperature measuring structure (14) is inserted into the sealing ring (13) in a sliding mode, one end of the temperature measuring structure (14) is inserted into the through hole (8), and the elastic rubber block (11) is tightly pressed and fixed on the temperature measuring structure (14).

2. The online temperature detection device of the transformer according to claim 1, characterized in that: the oil tank (1) downside fixedly connected with base (15), mounting hole (16) have been seted up on base (15) surface.

3. The online temperature detection device of the transformer according to claim 1, characterized in that: the temperature measuring structure (14) is arranged as a thermocouple thermometer.

4. The online temperature detection device of the transformer according to claim 1, characterized in that: the motor is characterized in that a motor box (17) is arranged on the outer side of the motor (4), one side of the motor box (17) is fixedly connected to the side wall of the oil tank (1), heat dissipation holes (18) are formed in the surface of the motor box (17), and a box door (19) is rotatably connected to one side of the motor box (17) through a hinge.

5. The online temperature detection device of the transformer according to claim 1, characterized in that: oil tank (1) diapire upside fixed connection has iron core (2), iron core (2) fixed surface is connected with winding (20).

6. The online temperature detection device of the transformer according to claim 1, characterized in that: the motor (4) is a speed reducing motor.