CN216054187U

CN216054187U - Oil immersed transformer with liquid level compensation device

Info

Publication number: CN216054187U
Application number: CN202122828097.3U
Authority: CN
Inventors: 马东东; 夏霜
Original assignee: Huaibei Huayuan Electrical Equipment Co ltd
Current assignee: Huaibei Huayuan Electrical Equipment Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-03-15
Anticipated expiration: 2031-11-18

Abstract

The utility model discloses an oil immersed transformer with a liquid level compensation device, which comprises an oil storage tank and a compensation mechanism, wherein the oil storage tank is connected with the compensation mechanism; an oil storage tank: the utility model discloses a take liquid level compensation device's oil immersed transformer, including the oil storage tank, the upper end rear side of case lid is equipped with first trachea, the upper end of case lid is equipped with evenly distributed's sleeve pipe, the inside bottom of oil storage tank is equipped with the installing frame, the inside linear array of installing frame is equipped with the coil, external power source is connected to the input electricity of coil, sheathed tube input is connected to the output electricity of coil, the left end of oil storage tank is equipped with the oil storage chamber, the oil inlet of oil storage chamber communicates with each other with the oil-out of oil storage tank, the upper end fixedly connected with closing cap of oil storage chamber, this take liquid level compensation device's oil immersed transformer, carry out real-time supervision to the inside fluid liquid level of device, can the inside fluid level of quick compensation device, make the inside liquid level of device be in safe height all the time, the security when having improved the device and using.

Description

Oil immersed transformer with liquid level compensation device

Technical Field

The utility model relates to the technical field of transformers, in particular to an oil immersed transformer with a liquid level compensation device.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, so as to meet the use requirements of people, when a large transformer works, the device is not easy to be cooled, so that an oil immersed transformer is needed to change the alternating voltage, the oil immersed transformer is a novel high-performance transformer with more reasonable structure and better performance, oil is used as the main insulation means of the transformer, oil is used as a cooling medium, however, the general oil immersed transformer can not ensure that the oil liquid level in the oil immersed transformer is at a safe height, when the oil liquid level in the oil immersed transformer is insufficient, the oil in the oil immersed transformer needs to be added manually by personnel, if the oil is not added in time, safety accidents are easily caused, whether the oil in the compensation mechanism is enough or not can not be accurately known, so that the liquid is not added to the transformer in time again, to this end, we propose an oil-immersed transformer with a liquid level compensation device to solve these problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the existing defects and provides an oil immersed transformer with a liquid level compensation device, which can monitor the liquid level of oil in the device in real time, quickly compensate the liquid level of the oil in the device, ensure that the liquid level in the device is always at a safe height and improve the safety of the device in use.

In order to achieve the purpose, the utility model provides the following technical scheme: an oil immersed transformer with a liquid level compensation device comprises an oil storage tank and a compensation mechanism;

an oil storage tank: the front side and the rear side of the lower end of the oil storage tank are respectively provided with a supporting plate, the upper end of the oil storage tank is fixedly connected with a tank cover, the rear side of the upper end of the tank cover is provided with a first air pipe, the upper end of the tank cover is provided with uniformly distributed sleeves, the bottom end inside the oil storage tank is provided with an installation frame, a linear array inside the installation frame is provided with a coil, the input end of the coil is electrically connected with an external power supply, the output end of the coil is electrically connected with the input end of the sleeve, the left end of the oil storage tank is provided with an oil storage cavity, the oil inlet of the oil storage cavity is communicated with the oil outlet of the oil storage tank, the upper end of the oil storage cavity is fixedly connected with a sealing cover, and the front side of the upper end of the sealing cover is provided with a second air pipe;

the compensation mechanism: set up in the inside of oil storage chamber, carry out real-time supervision to the inside fluid liquid level of device, can the inside fluid liquid level of quick compensation arrangement, make the inside liquid level of device be in safe height all the time, security when having improved the device use, whether the inside fluid of compensation mechanism is enough is known to the accuracy to can in time reset according to the inside oil mass condition, be convenient for wholly add liquid again.

Further, still include the PLC controller, the PLC controller sets up in the left end upside in oil storage chamber, and external power source is connected to the input electricity of PLC controller, regulates and control the normal operating of each equipment.

Further, compensation mechanism includes support column, slider, clamp plate and ceramic seal, the support column symmetry sets up in the inside bottom in oil storage chamber, and the upper end of support column all pegs graft with the lower extreme of closing cap, and the equal sliding connection of extrados of support column has the slider, is equipped with the clamp plate between two sliders, and the inside ceramic seal that is equipped with of mounting groove in the clamp plate outside, all with the inboard contact in oil storage chamber of the side all around ceramic seal, realize the high-efficient pressure oil operation.

Further, the compensating mechanism still includes spliced pole, carriage, rack plate, motor and gear, the spliced pole sets up in the upper end of clamp plate, the upside of closing cap is extended to the upper end of spliced pole, the carriage sets up in the left end upside in oil storage chamber, rack plate sliding connection is in the inside of carriage, connecting rod and spliced pole fixed connection are passed through to the upper end of rack plate, the motor sets up in the left end front side in oil storage chamber, the output of PLC controller is connected to the input electricity of motor, the gear sets up in the rear end of motor output shaft, the tooth of gear extrados is connected with the rack toothing of rack plate left end, realize stable transmission.

Furthermore, the sealing device further comprises a mounting seat and a contact sensor, the mounting seat is arranged on the front side of the upper end of the sealing cover, the contact sensor is arranged at the lower end of the mounting seat, a detection head of the contact sensor extends out of the lower end of the sealing cover, and the output end of the contact sensor is electrically connected with the input end of the PLC.

Further, still include oil storage tank and solenoid valve, the oil storage tank sets up in the right-hand member of oil storage tank, and the oil-out of oil storage tank passes through the connecting pipe to be connected with the oil inlet of oil storage tank, and the solenoid valve is established ties in the connecting pipe of oil storage tank left end insidely, and the output of PLC controller is connected to the input electricity of solenoid valve, realizes adding oil fast.

Furthermore, the heat pipe type oil storage tank further comprises fins and heat pipes, wherein the fins are respectively arranged at the front end and the rear end of the oil storage tank in a linear array mode, and the heat pipes are all inserted into the fins on the same side, so that quick heat dissipation is realized.

Further, still include level sensor, level sensor sets up inside the mounting hole of case lid upper end front side, and PLC controller's input is connected to level sensor's output electricity.

Compared with the prior art, the utility model has the beneficial effects that: this take liquid level compensation arrangement's oil immersed transformer has following benefit:

1. ultrasonic waves emitted by the liquid level sensor are reflected by the oil surface in the oil storage tank, the liquid level sensor can timely present inspection information to the PLC controller for integration and calculation, an oil inlet at the bottom end of the oil storage chamber is communicated with an oil outlet at the bottom end of the oil storage tank, so that the oil liquid level in the oil storage chamber is equal to the oil liquid level in the oil storage tank, when the oil liquid level in the oil storage tank is low, the PLC controller is used for regulating and controlling the work of the motor, an output shaft of the motor drives the gear to rotate, the gear drives the rack plate to slide downwards under the action of the supporting frame through teeth of the outer cambered surface, the rack plate drives the connecting column to slide downwards, the connecting column drives the pressing plate to move, the pressing plate slides downwards through the supporting column and the sliding block, the pressing plate extrudes the oil in the oil storage chamber into the oil storage tank, the second air pipe ensures the air pressure in the upper part to be balanced, and the first air pipe exhausts the air in the oil storage tank, at this moment, the ultrasonic wave that level sensor launches is reflected, level sensor calculates the wave band that reflects back, reach the safe value of regulation until the fluid liquid level in the batch oil tank, level sensor presents the signal and gives the PLC controller, PLC controller regulation and control compensating mechanism stop work, ceramic seal has improved the leakproofness between clamp plate and the oil storage chamber, avoid the upper end of clamp plate is leaked to the fluid, carry out real-time supervision to the fluid liquid level of device inside, can compensate the fluid liquid level of device inside fast, make the inside liquid level of device be in safe height all the time, the security when having improved the device and using.

2. When a detecting head of the liquid level sensor detects that the liquid level of oil is less than a preset value and the pressing plate is at the lowest end, the liquid level sensor transmits a signal to the PLC controller, the PLC controller judges that the compensation oil in the compensation mechanism is insufficient, the PLC controller regulates and controls the motor to work, the second air pipe ensures the air pressure balance above the motor, the output shaft of the motor drives the gear to rotate, the gear drives the rack plate to slide upwards under the action of the supporting frame through teeth of the outer cambered surface, the rack plate drives the connecting column to slide upwards, the connecting column drives the pressing plate to move upwards until the pressing plate contacts a detection end of the contact sensor, the detection end of the contact sensor contracts upwards under the extrusion of the pressing plate, a contact point in the contact sensor is closed, the contact sensor transmits the signal to the PLC controller, the PLC controller regulates and controls the electromagnetic valve to work, and the valve of the electromagnetic valve is opened, inside the oil storage tank is carried to the fluid of oil storage tank inside, and the air of oil storage tank inside is discharged through first trachea, is in reasonable value until the inside fluid liquid level of oil storage tank, and level sensor presents the signal for the PLC controller, and the valve that the PLC controller regulated and control solenoid valve is closed, and whether accurate inside fluid of knowing compensation mechanism is enough to can in time reset according to the inside oil mass condition, the whole liquid that in time adds again of being convenient for.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of the present invention.

In the figure: the device comprises a1 oil storage tank, a 2 supporting plate, a 3 box cover, a 4 mounting frame, a 5 coil, a 6 sleeve, a 7 oil storage cavity, an 8 compensation mechanism, an 81 supporting column, a 82 sliding block, an 83 pressing plate, a 84 ceramic sealing ring, an 85 connecting column, a 86 supporting frame, a 87 rack plate, an 88 motor, a 89 gear, a 9 oil storage tank, a 10PLC (programmable logic controller), an 11 sealing cover, a 12 mounting seat, a 13 contact type sensor, a 14 electromagnetic valve, a 15 fin, a 16 heat pipe, a 17 first air pipe, an 18 second air pipe and a 19 liquid level sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present embodiment provides a technical solution: an oil immersed transformer with a liquid level compensation device comprises an oil storage tank 1 and a compensation mechanism 8;

oil storage tank 1: the front side and the rear side of the lower end of the oil storage tank are respectively provided with a supporting plate 2, the supporting plate 2 realizes the supporting effect on the oil storage tank 1, the upper end of the oil storage tank 1 is fixedly connected with a tank cover 3, the rear side of the upper end of the tank cover 3 is provided with a first air pipe 17, the first air pipe 17 realizes the discharge of the air in the oil storage tank 1, the tank cover 3 realizes the sealing effect on the oil storage tank 1, the upper end of the tank cover 3 is provided with a uniformly distributed sleeve 6, the sleeve 6 realizes the connection effect on the electric wire in the coil 5, the bottom end in the oil storage tank 1 is provided with a mounting frame 4, the mounting frame 4 realizes the mounting on the coil 5, the linear array in the mounting frame 4 is provided with a coil 5, the input end of the coil 5 is electrically connected with an external power supply, the output end of the coil 5 is electrically connected with the input end of the sleeve 6, the left end of the oil storage tank 1 is provided with an oil storage chamber 7, the oil inlet of the oil storage chamber 7 is communicated with the oil outlet of the oil storage tank 1, the upper end of the oil storage cavity 7 is fixedly connected with a sealing cover 11, the sealing cover 11 realizes the sealing effect on the oil storage cavity 7, a second air pipe 18 is arranged on the front side of the upper end of the sealing cover 11, and the second air pipe 18 realizes the discharge of air in the oil storage cavity 7;

the compensation mechanism 8: set up in the inside of oil storage chamber 7, compensation mechanism 8 includes support column 81, slider 82, clamp plate 83 and ceramic seal 84, support column 81 symmetry sets up in the inside bottom of oil storage chamber 7, the upper end of support column 81 all pegs graft with the lower extreme of closing cap 11, the equal sliding connection of extrados of support column 81 has slider 82, be equipped with clamp plate 83 between two sliders 82, the inside ceramic seal 84 that is equipped with of mounting groove in the clamp plate 83 outside, ceramic seal 84 all with the inboard contact of oil storage chamber 7 all around the side, compensation mechanism 8 still includes spliced pole 85, carriage 86, rack plate 87, motor 88 and gear 89, spliced pole 85 sets up in the upper end of clamp plate 83, the upside of closing cap 11 is extended out to the upper end of spliced pole 85, carriage 86 sets up in the left end upside of oil storage chamber 7, rack plate 87 sliding connection is in carriage 86, connecting rod and spliced pole 85 fixed connection are passed through to the upper end of rack plate 87, motor 88 sets up in the left end front side of batch oil chamber 7, the output of PLC controller 10 is connected to motor 88's input electricity, gear 89 sets up in the rear end of motor 88 output shaft, the tooth of gear 89 extrados is connected with the rack toothing of rack board 87 left end, personnel regulate and control motor 88 work through PLC controller 10, motor 88's output shaft drives gear 89 and rotates, gear 89 drives rack board 87 through extrados's tooth and slides downwards under the effect of carriage 86, rack board 87 drives spliced pole 85 and slides downwards, spliced pole 85 drives the motion of clamp plate 83, clamp plate 83 slides downwards through support column 81 and slider 82, clamp plate 83 extrudes the inside of batch oil chamber 7 to batch oil tank 1's inside, improve the inside liquid level of batch oil tank 1, ceramic seal 84 has improved the leakproofness between clamp plate 83 and the batch oil chamber 7.

Wherein: still include PLC controller 10, PLC controller 10 sets up in the left end upside of oil storage chamber 7, and external power source is connected to PLC controller 10's input electricity.

Wherein: still include mount pad 12 and contact sensor 13, mount pad 12 sets up in the upper end front side of closing cap 11, mount pad 12 realizes the installation to contact sensor 13, contact sensor 13 sets up in the lower extreme of mount pad 12, contact sensor 13's detecting head extends the lower extreme of closing cap 11, PLC controller 10's input is connected to contact sensor 13's output electricity, spliced pole 85 drives clamp plate 83 and moves to the upside, until clamp plate 83 contact sensor 13's detection end, at this moment contact sensor 13's detection end upwards contracts under the extrusion of clamp plate 83, contact sensor 13 inside contact closure, contact sensor 13 presents the signal for PLC controller 10.

Wherein: still include oil storage tank 9 and solenoid valve 14, oil storage tank 9 sets up in the right-hand member of oil storage tank 1, the oil-out of oil storage tank 9 passes through the connecting pipe and is connected with the oil inlet of oil storage tank 1, solenoid valve 14 establishes ties inside the connecting pipe of 9 left ends of oil storage tank, PLC controller 10's output is connected to solenoid valve 14's input electricity, PLC controller 10 regulates and control 14 work of solenoid valve, solenoid valve 14's valve is opened, the inside fluid of oil storage tank 9 is carried the inside of oil storage tank 1.

Wherein: still include fin 15 and heat pipe 16, fin 15 sets up in the front and back both ends of batch oil tank 1 linear array respectively, and heat pipe 16 all pegs graft with the fin 15 of homonymy, and fin 15 absorbs the heat that the batch oil tank 1 during operation dispels, dispels the heat with fin 15 and heat pipe 16 fast through outside wind-force during the operation.

Wherein: still include level sensor 19, level sensor 19 sets up inside the mounting hole of 3 upper ends front sides of case lid, and level sensor 19 realizes the real-time supervision effect to the inside fluid liquid level of batch oil tank 1, and PLC controller 10's input is connected to level sensor 19's output electricity.

The working principle of the oil immersed transformer with the liquid level compensation device provided by the utility model is as follows: ultrasonic waves emitted by the liquid level sensor 19 are reflected by the oil surface in the oil storage tank 1, the liquid level sensor 19 timely presents inspection information to the PLC controller 10 for integration and calculation, because an oil inlet at the bottom end of the oil storage chamber 7 is communicated with an oil outlet at the bottom end of the oil storage tank 1, the oil liquid level in the oil storage chamber 7 is equal to the oil liquid level in the oil storage tank 1, when the oil liquid level in the oil storage tank 1 is low, the PLC controller 10 regulates and controls the motor 88 to work, an output shaft of the motor 88 drives the gear 89 to rotate, the gear 89 drives the rack plate 87 to slide downwards under the action of the support frame 86 through teeth of an outer cambered surface, the rack plate 87 drives the connecting post 85 to slide downwards, the connecting post 85 drives the pressing plate 83 to move, the pressing plate 83 slides downwards through the support post 81 and the sliding block 82, and the pressing plate 83 presses the oil in the oil storage chamber 7 to the inside of the oil storage tank 1, the first air pipe 17 discharges air in the oil storage tank 1, the second air pipe 18 ensures the balance of the upper air pressure, ultrasonic waves emitted by the liquid level sensor 19 are reflected, the liquid level sensor 19 calculates the reflected wave band until the liquid level of oil in the oil storage tank 1 reaches a specified safety value, the liquid level sensor 19 presents signals to the PLC controller 10, the PLC controller 10 controls the compensation mechanism 8 to stop working, the ceramic sealing ring 84 improves the sealing property between the pressing plate 83 and the oil storage cavity 7 to prevent the oil from leaking to the upper end of the pressing plate 83, when the detecting head of the liquid level sensor 19 detects that the liquid level of the oil is less than a preset value and the pressing plate 83 is at the lowest end, the liquid level sensor 19 presents signals to the PLC controller 10, the PLC controller 10 judges that the compensation oil in the compensation mechanism 8 is insufficient, the PLC controller 10 controls the motor 88 to work, and the second air pipe 18 ensures the balance of the upper air pressure, an output shaft of a motor 88 drives a gear 89 to rotate, the gear 89 drives a rack plate 87 to slide upwards under the action of a supporting frame 86 through teeth of an outer cambered surface, the rack plate 87 drives a connecting column 85 to slide upwards, the connecting column 85 drives a pressing plate 83 to move upwards until the pressing plate 83 contacts a detection end of a contact type sensor 13, at the moment, the detection end of the contact type sensor 13 contracts upwards under the extrusion of the pressing plate 83, a contact inside the contact type sensor 13 is closed, the contact type sensor 13 presents signals to a PLC (programmable logic controller) 10, the PLC 10 regulates and controls the operation of an electromagnetic valve 14, a valve of the electromagnetic valve 14 is opened, oil inside an oil storage tank 9 is conveyed to the inside of the oil storage tank 1, air inside the oil storage tank 1 is discharged through a first air pipe 17 until the liquid level inside the oil storage tank 1 is in a reasonable value, and the liquid level sensor 19 presents signals to the PLC 10, the PLC 10 controls the valve of the electromagnetic valve 14 to be closed, the fins 15 absorb heat emitted by the oil storage tank 1 during working, and the fins 15 and the heat pipe 16 are rapidly radiated by external wind power.

It should be noted that the motor 88 disclosed in the above embodiments may be a 5IK120RGU motor, the touch sensor 13 may be an SA-S110/03N touch sensor, the solenoid valve 14 may be a DN25 solenoid valve, the PLC controller 10 may be an LM100-10CXX programmable controller, the liquid level sensor 19 may be a PCR-a111 liquid level sensor, and the PLC controller 10 controls the motor 88 and the solenoid valve 14 to operate according to a method commonly used in the art.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a take liquid level compensation arrangement's oil immersed transformer which characterized in that: comprises an oil storage tank (1) and a compensation mechanism (8);

oil storage tank (1): the front side and the rear side of the lower end of the oil storage tank are respectively provided with a supporting plate (2), the upper end of the oil storage tank (1) is fixedly connected with a tank cover (3), the rear side of the upper end of the tank cover (3) is provided with a first air pipe (17), the upper end of the tank cover (3) is provided with a uniformly distributed sleeve pipe (6), the bottom end inside the oil storage tank (1) is provided with a mounting frame (4), the inside linear array of the mounting frame (4) is provided with a coil (5), the input end of the coil (5) is electrically connected with an external power supply, the output end of the coil (5) is electrically connected with the input end of the sleeve pipe (6), the left end of the oil storage tank (1) is provided with an oil storage chamber (7), the oil inlet of the oil storage chamber (7) is communicated with the oil outlet of the oil storage tank (1), the upper end of the oil storage chamber (7) is fixedly connected with a sealing cover (11), and the front side of the upper end of the sealing cover (11) is provided with a second air pipe (18);

compensation mechanism (8): is arranged inside the oil storage chamber (7).

2. Oil transformer with liquid level compensation device according to claim 1, characterized in that: still include PLC controller (10), PLC controller (10) set up in the left end upside of oil storage chamber (7), and external power source is connected to the input electricity of PLC controller (10).

3. Oil transformer with liquid level compensation device according to claim 2, characterized in that: compensation mechanism (8) are including support column (81), slider (82), clamp plate (83) and ceramic seal (84), support column (81) symmetry sets up in the inside bottom of oil storage chamber (7), and the upper end of support column (81) all pegs graft with the lower extreme of closing cap (11), and the equal sliding connection of extrados of support column (81) has slider (82), is equipped with clamp plate (83) between two slider (82), and the mounting groove in the clamp plate (83) outside is inside to be equipped with ceramic seal (84), all with the inboard contact of oil storage chamber (7) the side all around of ceramic seal (84).

4. Oil transformer with liquid level compensation device according to claim 3, characterized by: compensating mechanism (8) still include spliced pole (85), carriage (86), rack plate (87), motor (88) and gear (89), spliced pole (85) set up in the upper end of clamp plate (83), the upside of closing cap (11) is extended to the upper end of spliced pole (85), carriage (86) set up in the left end upside in oil storage chamber (7), rack plate (87) sliding connection is in the inside of carriage (86), connecting rod and spliced pole (85) fixed connection are passed through to the upper end of rack plate (87), motor (88) set up in the left end front side in oil storage chamber (7), the output of PLC controller (10) is connected to the input electricity of motor (88), gear (89) set up in the rear end of motor (88) output shaft, the tooth of gear (89) extrados is connected with the rack toothing of rack plate (87) left end.

5. Oil transformer with liquid level compensation device according to claim 2, characterized in that: the PLC controller is characterized by further comprising a mounting seat (12) and a contact sensor (13), wherein the mounting seat (12) is arranged on the front side of the upper end of the sealing cover (11), the contact sensor (13) is arranged at the lower end of the mounting seat (12), a detection head of the contact sensor (13) extends out of the lower end of the sealing cover (11), and the output end of the contact sensor (13) is electrically connected with the input end of the PLC controller (10).

6. Oil transformer with liquid level compensation device according to claim 2, characterized in that: still include oil storage tank (9) and solenoid valve (14), oil storage tank (9) set up in the right-hand member of oil storage tank (1), and the oil-out of oil storage tank (9) passes through the connecting pipe to be connected with the oil inlet of oil storage tank (1), and solenoid valve (14) are established ties in the connecting tube of oil storage tank (9) left end insidely, and the output of PLC controller (10) is connected to the input electricity of solenoid valve (14).

7. Oil transformer with liquid level compensation device according to claim 1, characterized in that: still include fin (15) and heat pipe (16), fin (15) linear array respectively sets up both ends around oil storage tank (1), and heat pipe (16) all pegs graft with fin (15) of homonymy.

8. Oil transformer with liquid level compensation device according to claim 2, characterized in that: still include level sensor (19), level sensor (19) set up inside the mounting hole of case lid (3) upper end front side, and the input of PLC controller (10) is connected to the output electricity of level sensor (19).