CN217005999U - A device for transformer oil level intelligent monitoring - Google Patents

Abstract

The utility model discloses a device for intelligent monitoring of the oil level of a transformer, which comprises a transformer body, which is the main support and installation structure of the equipment. An oil groove is provided inside the transformer body, and a wireless signal transceiver is arranged on the outer surface of one end of the transformer body. a float ball, located inside the oil tank, a limit rod is arranged at the bottom end of the float ball, and a connecting rod is arranged between the limit rod and the float ball; rollers are located at the left and right ends of the limit rod, so An installation cylinder is arranged inside the roller. The device for intelligent monitoring of transformer oil level drives the overall vertical lift of the limit rod through the floating ball, so that the roller rolls along the inner wall of the oil tank, and the oil level can be monitored in a rolling manner, thereby increasing the overall practicability, wireless signal The transceiver can receive the data monitored by the oil level measuring module and the displacement measuring table inside the oil tank, and feed back the monitoring data to the background, so that the staff can monitor the overall oil level of the transformer in real time.

Description

A device for intelligent monitoring of transformer oil level

technical field

The utility model relates to the technical field of transformers, in particular to a device for intelligent monitoring of transformer oil levels.

Background technique

Transformer oil is an important part of the transformer and plays an important role in insulation and cooling. The oil level affects the safe operation of the transformer. The oil quantity detection device is a detection device used to detect the remaining oil capacity of the oil conservator in the transformer. Some oil detection devices include mechanical oil level detection devices. The working process is as follows: when the oil level inside the oil conservator changes, the floating ball connected by the rod will float up and down with the oil level, that is, when the oil level rises, The floating ball drives the angle between the connecting rod and the level to increase, and drives the pointer of the oil level gauge to rotate clockwise, that is, to the direction of the high oil level scale; otherwise, the oil level indicator rotates to the low oil level scale;

In power transmission and transformation lines, in order to reduce the loss of electric energy, it is necessary to use a transformer to change the voltage. Therefore, the transformer is an important electrical equipment, and the transformer is also an important pivot equipment in the power system, especially the oil-immersed power transformer. Part of the transformer oil needs to be added in the process, and the oil is replenished after the installation is completed, so there is a problem of how much oil is added and whether the transformer oil leaks during transportation. Therefore, the monitoring device for the transformer oil level is an important part of the transformer. None of the existing monitoring devices for transformer oil level are used in the process of transformer installation and transportation.

At present, the oil level observation during vacuum oil filling and nitrogen filling and oil discharge of the transformer is mostly to open an observation window on the transformer oil tank to observe the oil level or to determine the oil level by tapping the soil. If the observation window is opened on the transformer, the transformer will be increased. Leak points and increase the workload, the soil method can only roughly determine the oil level, and the error is too large, so the two methods are not satisfactory. Therefore, a device for intelligent monitoring of transformer oil level is required.

Utility model content

The purpose of this utility model is to provide a device for intelligent monitoring of the oil level of the transformer, in order to solve the problem in the above-mentioned background technology that the oil level observation in the case of vacuum oil filling and nitrogen filling and oil discharge of the transformer is mostly observed by opening an observation window on the transformer oil tank. The oil level can be determined by tapping the soil method. If the observation window is opened on the transformer, it will increase the leakage point of the transformer and increase the workload. The soil method can only roughly determine the oil level. If the error is too large, there is a risk problem. .

In order to achieve the above purpose, the present utility model provides the following technical solutions: a device for intelligent monitoring of transformer oil level, comprising:

The transformer body is the main support and installation structure of the equipment, an oil tank is opened inside the transformer body, and a wireless signal transceiver is provided on the outer surface of one end of the transformer body;

a floating ball, located inside the oil tank, a limiting rod is arranged at the bottom end of the floating ball, and a connecting rod is arranged between the limiting rod and the floating ball;

The rollers are located at the left and right ends of the limit rod, and installation cylinders are arranged inside the rollers.

As a preferred technical solution of the present invention, the connecting rod and the limiting rod are both hollow-shaped structures, the left and right ends of the limiting rod are provided with movable shafts, and the outer surfaces of the movable shafts are provided with ball bearings.

With the above technical solution, the internal structure of the connecting rod and the limit rod can increase the internal air volume, can improve the overall buoyancy of the monitoring device, reduce the weight of the detector, and the ball bearing can improve the sensitivity of the roller, avoid Friction is too large to affect buoyancy.

As a preferred technical solution of the present invention, the installation cylinder and the ball bearing are in a fit connection, and a displacement measurement meter and an oil level measurement module are installed inside the installation cylinder.

With the above technical solution, the installation cylinder is connected to the outer surface of the ball bearing, and can rotate along the outer surface of the movable shaft with the ball bearing, thereby driving the displacement measuring table to measure the oil level data in a rotating manner, thereby improving the oil level of the transformer. Ease and accuracy of measurement.

As a preferred technical solution of the present invention, the wireless signal transceiver is connected with the oil level measuring module and the displacement measuring meter by wireless signals.

With the above technical solution, the wireless signal transceiver can receive the data monitored by the oil level measuring module and the displacement measuring meter inside the oil tank, and feed the monitoring data back to the background, so that the staff can monitor the overall oil level of the transformer in real time.

As a preferred technical solution of the present invention, a positioning groove is annularly distributed inside the installation cylinder, and a connecting block is connected inside the positioning groove.

By adopting the above technical solution, by annularly distributing locating grooves inside the mounting cylinder, and annularly distributing connecting blocks corresponding to the number of locating grooves on the inner surface of the roller, the connecting blocks and the locating grooves are connected to each other, which can limit the position of the roller and facilitate the adjustment of the rollers. The rollers can be disassembled and assembled to facilitate the maintenance of the monitoring structure.

As a preferred technical solution of the present invention, a roller is provided on the outer surface of the installation cylinder, and the roller and the oil groove are slidingly connected.

Using the above technical solution, under the influence of buoyancy, the limit rod is driven vertically up and down by the floating ball, so that the roller rolls along the inner wall of the oil tank, and the oil level can be monitored in a rolling manner, thereby increasing the overall practicability.

Compared with the prior art, the beneficial effects of the present utility model are: the device for intelligent monitoring of transformer oil level:

1. Under the influence of buoyancy, the whole vertical lift of the limit rod is driven by the floating ball, so that the roller rolls along the inner wall of the oil tank, and the oil level can be monitored by rolling, thus increasing the overall practicability;

2. The wireless signal transceiver can receive the data monitored by the oil level measuring module and the displacement measuring table inside the oil tank, and feed back the monitoring data to the background, which is convenient for the staff to monitor the overall oil level of the transformer in real time.

Description of drawings

Fig. 1 is the front structure schematic diagram of the overall internal section of the utility model;

Figure 2 is a schematic view of the interior front view of the installation cylinder of the present invention;

Fig. 3 is the top-view structure schematic diagram of the floating ball of the present invention;

FIG. 4 is a schematic view of the structure of the floating ball of the present invention viewed from the bottom.

In the figure: 1. Transformer body; 2. Oil tank; 3. Wireless signal transceiver; 4. Floating ball; 5. Connecting rod; 6. Limit rod; 7. Active shaft; 8. Roller; 9. Ball bearing; 10 , displacement measuring table; 11, installation cylinder; 12, oil level measurement module; 13, connecting block; 14, positioning groove.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-4, the present utility model provides a technical solution: a device for intelligent monitoring of transformer oil level, including:

The transformer body 1 is the main support and installation structure of the equipment. The transformer body 1 is provided with an oil tank 2, and the outer surface of one end of the transformer body 1 is provided with a wireless signal transceiver 3; the float 4 is located inside the oil tank 2, and the bottom end of the float 4 is provided with The limit rod 6 is provided with a connecting rod 5 between the limit rod 6 and the floating ball 4 ; the rollers 8 are located at the left and right ends of the limit rod 6 , and a mounting cylinder 11 is arranged inside the roller 8 .

Both the connecting rod 5 and the limiting rod 6 are hollow-shaped structures, the left and right ends of the limiting rod 6 are provided with movable shafts 7, and the outer surface of the movable shaft 7 is provided with a ball bearing 9; The structure can increase the internal air volume, can improve the overall buoyancy of the monitoring device, and reduce the weight of the detector, and the ball bearing 9 provided can improve the sensitivity of the roller 8 to avoid excessive friction and affect the buoyancy; installation cylinder 11 It is attached to the ball bearing 9, and the displacement measuring meter 10 and the oil level measuring module 12 are installed inside the installation cylinder 11; Rotation, so as to drive the displacement measuring table 10 to measure the oil level data in a rotating manner, thereby improving the convenience and accuracy of the transformer oil level measurement; the wireless signal transceiver 3, the oil level measuring module 12 and the displacement measuring table 10 It is a wireless signal connection; the wireless signal transceiver 3 can receive the data monitored in the oil tank 2 by the oil level measurement module 12 and the displacement measurement table 10, and feed back the monitoring data to the background, so that the staff can check the overall oil level of the transformer in real time. Monitoring; there are locating grooves 14 inside the installation cylinder 11 , and the connecting blocks 13 are connected inside the locating groove 14 ; the locating grooves 14 are annularly distributed inside the installation cylinder 11 , and the annular distribution on the inner surface of the roller 8 corresponds to the number of the locating grooves 14 The connecting block 13 is connected to each other with the positioning groove 14, which can limit the position of the roller 8, facilitate the disassembly and assembly of the roller 8, and facilitate the maintenance of the monitoring structure; the outer surface of the installation cylinder 11 is provided with a roller 8, The roller 8 and the oil tank 2 are slidingly connected; under the influence of buoyancy, the limit rod 6 is driven vertically up and down by the float ball 4, so that the roller 8 rolls along the inner wall of the oil tank 2, and the oil level can be monitored in a rolling manner, thereby increasing the overall usability.

Working principle: When using the device for intelligent monitoring of transformer oil level, firstly, the float 4 is preset inside the oil tank 2, and the roller 8 is attached to the inner wall of the oil tank 2 to keep the float 4 in a vertical state. The internal structure of the limit rod 6 can increase the internal air volume, can improve the overall buoyancy of the monitoring device, reduce the weight of the detector, and the ball bearing 9 provided can improve the sensitivity of the roller 8 to avoid excessive friction. Affect the buoyancy. Under the influence of buoyancy, the limit rod 6 is driven vertically up and down by the floating ball 4, so that the roller 8 rolls along the inner wall of the oil tank 2, and the oil level can be monitored in a rolling way. The installation cylinder 11 is annularly distributed with positioning The inner surface of the roller 8 is annularly distributed with connecting blocks 13 corresponding to the number of the positioning grooves 14. The connecting blocks 13 and the positioning grooves 14 are connected to each other, which can limit the position of the roller 8 and facilitate the disassembly and assembly of the roller 8. To maintain the monitoring structure, the wireless signal transceiver 3 can receive the data monitored in the oil tank 2 by the oil level measurement module 12 and the displacement measurement table 10, and feed back the monitoring data to the background, so that the staff can check the overall oil level of the transformer. Real-time monitoring is performed, thereby increasing the overall usefulness.

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

Claims (6)

1. a device for intelligent monitoring of transformer oil level, is characterized in that, comprises: The transformer body (1) is the main support and installation structure of the equipment, an oil tank (2) is opened inside the transformer body (1), and a wireless signal transceiver (3) is provided on the outer surface of one end of the transformer body (1); A floating ball (4) is located inside the oil tank (2), a limiting rod (6) is provided at the bottom end of the floating ball (4), and a limiting rod (6) is provided between the limiting rod (6) and the floating ball (4). connecting rod (5); The roller (8) is located at the left and right ends of the limit rod (6), and an installation cylinder (11) is arranged inside the roller (8). 2 . The device for intelligent monitoring of transformer oil level according to claim 1 , wherein the connecting rod ( 5 ) and the limit rod ( 6 ) are both hollow-shaped structures, and the limit rod ( 6 ) has a hollow structure. 3 . The left and right ends of the rod (6) are provided with movable shafts (7), and the outer surfaces of the movable shafts (7) are provided with ball bearings (9). 3. A device for intelligent monitoring of transformer oil level according to claim 1, characterized in that: the installation cylinder (11) and the ball bearing (9) are in a fit connection, and the installation cylinder (11) A displacement measuring table (10) and an oil level measuring module (12) are installed inside. 4. A device for intelligent monitoring of transformer oil level according to claim 3, characterized in that: the wireless signal transceiver (3), the oil level measurement module (12) and the displacement measurement table (10) are: Wireless signal connection. 5 . The device for intelligent monitoring of transformer oil level according to claim 1 , wherein the installation cylinder ( 11 ) is annularly distributed with positioning grooves ( 14 ), and the positioning groove ( 14 ) has an inner A connection block (13) is attached. 6 . The device for intelligent monitoring of transformer oil level according to claim 1 , wherein a roller ( 8 ) is provided on the outer surface of the installation cylinder ( 11 ), and the roller ( 8 ) is connected to the oil tank ( 6 . 2) For sliding connection.

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