CN212848011U

CN212848011U - Monitoring device for oil-immersed power transformer

Info

Publication number: CN212848011U
Application number: CN202021882107.0U
Authority: CN
Inventors: 华攀月
Original assignee: Yangzhou Qingwei Electromechanical Equipment Co ltd
Current assignee: Yangzhou Qingwei Electromechanical Equipment Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-03-30
Anticipated expiration: 2030-09-02

Abstract

The utility model provides an oil-immersed power transformer monitoring device, which comprises a transformer body, wherein a mounting plate is arranged on one side surface of the transformer body, a controller is arranged on the mounting plate, a first temperature detector and a second temperature detector are arranged on the side surface of the transformer body, and the temperature measuring ends of the first temperature detector and the second temperature detector are positioned at the top end and the bottom end inside an oil tank of the transformer body; the transformer body bottom is equipped with first backup pad, first backup pad below is equipped with the second backup pad, first backup pad lower extreme is equipped with the sleeve, second backup pad upper end is equipped with the loop bar, four of them the fixed piezoceramics section of thick bamboo that is equipped with in loop bar upper end, the connection of piezoceramics section of thick bamboo upper end is equipped with the spring, the spring other end is connected inside the sleeve. The utility model discloses a temperature, two kinds of monitoring methods of vibration range can in time differentiate the operational aspect of transformer, and do not need the device to observe on every side.

Description

Monitoring device for oil-immersed power transformer

Technical Field

The utility model mainly relates to an oil-immersed power transformer's technical field, concretely relates to oil-immersed power transformer monitoring devices.

Background

In modern society, transformers are one of the important devices in industrial and mining enterprises and civil building power distribution systems. In electrical equipment and wireless circuits, transformers are often used for voltage step-up and step-down, impedance matching, safety isolation, and the like, and are classified according to insulation and cooling forms, which can be roughly classified into dry transformers and oil-immersed power transformers, the oil-immersed power transformers adopt a completely oil-filled sealed type, the oil-immersed power transformers have been widely applied to various power distribution equipment, but the monitoring effect of the current monitoring equipment is not good, for example, the current monitoring equipment is a patent with the patent number of 201922061366.0, which includes a housing, a sound collecting component, a communication module and a judging module; the sound collecting assembly comprises a sound transmission pipe and a sound collector, the sound collector is arranged in the shell, a sound collecting hole is formed in the shell, one end of the sound transmission pipe is correspondingly connected with the sound collector, and the other end of the sound transmission pipe extends to the sound collecting hole; the shell is arranged on the outer wall of the transformer, and one side of the shell, which is provided with the sound collecting hole, is directly contacted with the outer wall of the transformer; the communication module is respectively connected with the sound pickup and the discrimination module; and the judging module is used for identifying the running sound transmitted in real time and outputting a result. Although the monitoring can be continuously carried out on the transformer, the monitoring means is too simple, and information cannot be effectively fed back, so that the operation condition of the transformer can be judged.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides an oil-immersed power transformer monitoring devices for solve the technical problem who proposes in the above-mentioned background art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: an oil-immersed power transformer monitoring device comprises a transformer body, wherein a cover plate is arranged at the top of the transformer body, a motor is arranged on the cover plate, a mounting plate is arranged on one side surface of the transformer body, a controller is arranged on the mounting plate, the controller is electrically connected with the motor, a first temperature detector and a second temperature detector are arranged on the side surface of the transformer body, which is provided with the mounting plate, the temperature measuring ends of the first temperature detector and the second temperature detector are positioned at the top end and the bottom end inside an oil tank of the transformer body, and the other ends of the first temperature detector and the second temperature detector are positioned outside the transformer body; the transformer body bottom is connected and is equipped with first backup pad, first backup pad below parallel arrangement has the second backup pad, the welding of first backup pad lower extreme is equipped with a plurality of sleeves, second backup pad upper end is equipped with the loop bar that corresponds with the sleeve to individual, four wherein of four corners the fixed piezoceramics section of thick bamboo that is equipped with in loop bar upper end, piezoceramics section of thick bamboo and controller electric connection, the connection of piezoceramics section of thick bamboo upper end is equipped with the spring, the spring other end is connected inside the sleeve.

Preferably, the inside temperature acquisition circuit that is equipped with of controller, first thermodetector and second thermodetector are located the outside one end of transformer body and temperature acquisition circuit output electric connection, the last connection of acquisition circuit is equipped with the treater, treater electric connection is equipped with wireless transmission module, wireless transmission module signal connection is equipped with control terminal. In the preferred embodiment, information transfer and processing is accomplished by a controller.

Preferably, first temperature detect ware and second temperature detect ware model are PT100, first temperature detect ware and second temperature detect ware pass transformer body department and are equipped with the sealing ring, wireless transmission module is wiFi module or bluetooth module, control terminal is smart mobile phone or computer. In the preferred embodiment, the control terminal can realize that the staff can receive the information in real time.

Preferably, each of the inner walls of the sleeves is in close contact with the outer wall of the sleeve rod, and the sleeves 3 are slidably connected with the sleeve rods 3. In the preferred embodiment, the first support plate and the second support plate are prevented from being misaligned by the sleeve and the loop bar.

Preferably, it is a plurality of sleeve and loop bar are all arranged in a row form, all separate the certain distance and be equipped with the elastic tube between every row, the elastic tube axis is parallel with first backup pad, just the outer lateral wall of elastic tube and first backup pad and the welding of second backup pad contact surface between every row. In the preferred embodiment, the elastic tube can absorb vibration energy through elastic deformation and elastic recovery, reduce the amplitude of the transformer and provide support for the first support plate.

Preferably, the cover plate and the mounting plate are both made of rubber. In the preferred embodiment, the damage to the motor and the controller caused by vibration can be realized through the rubber material.

Preferably, the motor output end is connected and is equipped with the pivot, the pivot is connected and is equipped with the dwang, the dwang other end is connected and is equipped with the camera, camera and wireless transmission module electric connection. In the preferred embodiment, the condition of the transformer body can be checked at any time through the camera.

Compared with the prior art, the utility model has the advantages that whether the oil tank leaks or not can be measured according to the temperature change through the two temperature detectors; the piezoelectric ceramic cylinder is adopted, and the vibration condition of the transformer body at the position is reflected according to the output current change of the piezoelectric ceramic cylinder, so that whether the device normally operates or not is known, double detection is realized, and the device is more comprehensive and effective; by adopting the camera and the controller, the real-time information of the occurrence condition of the transformer body can be known without surrounding the transformer body, so that the labor is saved.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

Fig. 1 is an isometric view of the present invention;

FIG. 2 is a partial isometric view of the present invention;

FIG. 3 is a diagram of the internal structure of the controller of the present invention;

fig. 4 is a connection diagram of the sleeve and the loop bar of the present invention.

In the figure: 1. a transformer body; 11. a cover plate; 12. a motor; 13. mounting a plate; 14. a first temperature detector; 15. a second temperature detector; 16. rotating the rod; 17. a camera; 18. a rotating shaft; 2. a controller; 21. an acquisition circuit; 22. a wireless transmission module; 23. a processor; 3. a first support plate; 31. a second support plate; 32. a sleeve; 33. a loop bar; 34. a piezoelectric ceramic cylinder; 35. a spring; 36. an elastic tube.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1 and 2, the present invention provides a technical solution: an oil-immersed power transformer monitoring device comprises a transformer body 1, wherein a cover plate 11 is arranged at the top of the transformer body 1, a motor 12 is arranged on the cover plate 11, a mounting plate 13 is arranged on one side surface of the transformer body 1, a controller 2 is arranged on the mounting plate 13, the cover plate 11 and the mounting plate 13 are both made of rubber materials, the rubber materials can relieve damage to the motor 12 and the controller 2 caused by vibration, the controller 2 is electrically connected with the motor 12, a first temperature detector 14 and a second temperature detector 15 are arranged on the side surface of the transformer body 1 provided with the mounting plate 13, temperature measuring ends of the first temperature detector 14 and the second temperature detector 15 are positioned at the top end and the bottom end inside an oil tank of the transformer body 1, the other ends of the first temperature detector 14 and the second temperature detector 15 are positioned outside the transformer body 1, when the oil tank leaks, the first temperature detector 14 cannot detect the temperature of the internal oil, and can only detect the temperature of the air, while the second temperature detector 15 still detects the temperature of the oil, so that when the temperatures detected by the first temperature detector 14 and the second temperature detector 15 are too different, the internal oil tank fails.

Please refer to fig. 1, 2 and 3 again, the output end of the motor 12 is connected with a rotating shaft 18, the rotating shaft 18 is connected with a rotating rod 16, the other end of the rotating rod 16 is connected with a camera 17, the camera 17 is electrically connected with the wireless transmission module 22, and the condition of the transformer body 1 can be checked at any time through the camera 17 without people around. It is a plurality of sleeve 32 and loop bar 33 are all arranged in line form, all separate the certain distance and be equipped with elastic tube 36 between every row, elastic tube 36 axis is parallel with first backup pad 3, just the welding of elastic tube 36 lateral wall and first backup pad 3 and second backup pad 31 contact surface, through elastic tube 36, can reduce transformer body 1's amplitude through elastic deformation and elastic recovery absorption vibration energy to provide the support for first backup pad 3.

Please refer to fig. 1, 3, and 4, the bottom of the transformer body 1 is connected with a first support plate 3, a second support plate 31 is arranged below the first support plate 3 in parallel, the lower end of the first support plate 3 is welded with a plurality of sleeves 32, the upper end of the second support plate 31 is provided with a plurality of loop bars 33 corresponding to the sleeves 32, the inner wall of each sleeve 32 is in close contact with the outer wall of the loop bar 33, and the sleeves 32 and the loop bars 33 are connected in a sliding manner, so as to prevent the first support plate 3 and the second support plate 31 from being dislocated when the transformer body 1 vibrates, wherein piezoelectric ceramic cylinders 34 are fixedly arranged at the upper ends of the four loop bars 33 at four corners, the piezoelectric ceramic cylinders 34 are electrically connected with the controller 2, the upper ends of the piezoelectric ceramic cylinders 34 are connected with springs 35, the other ends of the springs 35 are connected inside the sleeves 32, when the transformer body 1 vibrates, the first supporting plate 3 can vibrate along with the transformer body 1, so that the sleeve 32 vibrates upwards or downwards, the pressure applied to the piezoelectric ceramic cylinder 34 through the spring 35 is increased or reduced, the output current of the piezoelectric ceramic cylinder 34 is changed, and the current change information is transmitted to the acquisition circuit 21. The inside acquisition circuit 21 that is equipped with of controller 2, first thermodetector 14 and second thermodetector 15 are located the outside one end of transformer body 1 and acquisition circuit 21 output electric connection, the last connection of acquisition circuit 21 is equipped with treater 23, treater 23 electric connection is equipped with wireless transmission module 22, wireless transmission module 22 signal connection is equipped with control terminal. The information is transmitted to the processor 23 through the acquisition circuit 21, and the processor 23 transmits the information to the control terminal through the wireless transmission module 22, so that the staff receives the information. The first temperature detector 14 and the 15 models of second temperature detector are PT100, first temperature detector 14 and second temperature detector 15 pass transformer body 1 department and are equipped with the sealing ring, wireless transmission module 22 is wiFi module or bluetooth module, control terminal is smart mobile phone or computer.

The utility model discloses a concrete operation as follows:

when the transformer body 1 is in operation, the first temperature detector 14 and the second temperature detector 15 measure the internal oil temperature, the information is transmitted to the information through the acquisition circuit 21, the first support plate 3 vibrates along with the transformer body 1, so that the sleeve 32 vibrates upwards or downwards, the pressure on the piezoelectric ceramic cylinder 34 through the spring 35 is increased or decreased, the output current of the piezoelectric ceramic cylinder 34 changes, the current change information is transmitted to the acquisition circuit 21, the information is transmitted to the processor 23 through the acquisition circuit 21, the processor 23 transmits the information to the control terminal through the wireless transmission module 22, so that the information is received by a worker, when the temperature difference measured by the first temperature detector 14 and the second temperature detector 15 is too large, the internal oil tank fails, when the change difference of the output current of the piezoelectric ceramic cylinder 34 is too large, when the transformer body 1 breaks down, the worker can check the transformer body 1 through the camera 17 through the control terminal, and effective monitoring can be achieved.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims

1. The utility model provides an oil-immersed power transformer monitoring devices, includes transformer body (1), its characterized in that: the transformer comprises a transformer body (1), and is characterized in that a cover plate (11) is arranged at the top of the transformer body (1), a motor (12) is arranged on the cover plate (11), a mounting plate (13) is arranged on one side surface of the transformer body (1), a controller (2) is arranged on the mounting plate (13), the controller (2) is electrically connected with the motor (12), a first temperature detector (14) and a second temperature detector (15) are arranged on the side surface of the transformer body (1) provided with the mounting plate (13), temperature measuring ends of the first temperature detector (14) and the second temperature detector (15) are positioned at the top end and the bottom end inside an oil tank of the transformer body (1), and the other ends of the first temperature detector (14) and the second temperature detector (15) are positioned outside the transformer body (;

transformer body (1) bottom is connected and is equipped with first backup pad (3), first backup pad (3) below parallel arrangement has second backup pad (31), first backup pad (3) lower extreme welding is equipped with a plurality of sleeves (32), second backup pad (31) upper end is equipped with loop bar (33) that correspond individual and sleeve (32), four wherein of corner fixed be equipped with a piezoceramics section of thick bamboo (34) in loop bar (33) upper end, a piezoceramics section of thick bamboo (34) and controller (2) electric connection, the connection is equipped with spring (35) in piezoceramics section of thick bamboo (34) upper end, spring (35) other end is connected inside sleeve (32).

2. An oil-filled power transformer monitoring device according to claim 1, characterized in that: the temperature monitoring device is characterized in that a collection circuit (21) is arranged inside the controller (2), the first temperature detector (14) and the second temperature detector (15) are located at one end outside the transformer body (1) and electrically connected with the output end of the temperature collection circuit (21), a processor (23) is connected to the collection circuit (21), a wireless transmission module (22) is arranged on the processor (23) in an electrically connected mode, and the wireless transmission module (22) is connected with a signal through a control terminal.

3. An oil-filled power transformer monitoring device according to claim 2, characterized in that: the novel transformer is characterized in that the models of the first temperature detector (14) and the second temperature detector (15) are PT100, a sealing ring is arranged at the position where the first temperature detector (14) and the second temperature detector (15) penetrate through the transformer body (1), the wireless transmission module (22) is a WiFi module or a Bluetooth module, and the control terminal is a smart phone or a computer.

4. An oil-filled power transformer monitoring device according to claim 1, characterized in that: the inner wall of each sleeve (32) is tightly contacted with the outer wall of the sleeve rod (33), and the sleeves (32) are connected with the sleeve rods (33) in a sliding mode.

5. An oil-filled power transformer monitoring device according to claim 1, characterized in that: a plurality of sleeve (32) and loop bar (33) all arrange in line form, all separate the certain distance and be equipped with elastic tube (36) between every row and every two rows, elastic tube (36) axis is parallel with first backup pad (3), just elastic tube (36) lateral wall and first backup pad (3) and second backup pad (31) contact surface welding.

6. An oil-filled power transformer monitoring device according to claim 1, characterized in that: the cover plate (11) and the mounting plate (13) are both made of rubber.

7. An oil-filled power transformer monitoring device according to claim 1, characterized in that: motor (12) output end connection is equipped with pivot (18), pivot (18) are connected and are equipped with dwang (16), dwang (16) other end connection is equipped with camera (17), camera (17) and wireless transmission module (22) electric connection.