High-energy-efficiency-grade oil-immersed power transformer

Abstract

The utility model discloses an oil-immersed power transformer with a high energy efficiency grade, which relates to the technical field of power transformers and comprises a bottom plate, a transformer body arranged in the middle of the top end of the bottom plate, an oil cylinder arranged on one side of the top end of the transformer body, an efficient component arranged at the top end of the bottom plate, and two U-shaped covers movably arranged on the outer ring of the top end of the bottom plate. An oil filling barrel is arranged on one side of one side of one U-shaped cover, and a noise reduction assembly is arranged at the top end of the bottom plate. The efficient assembly comprises a liquid level meter, the liquid level meter is arranged in the oil cylinder, and a buzzer alarm is arranged at the top of the oil cylinder; the noise reduction assembly comprises two sliding grooves, and the two sliding grooves are formed in the two sides of the top end of the bottom plate correspondingly. The efficient assembly has the advantages that the liquid level meter arranged in the efficient assembly is used for sensing the oil quantity in the oil barrel, the buzzer alarm gives an alarm when the sensed oil quantity is small, oil in the oil filling barrel is guided into the oil barrel through the spring pipe through the oil well pump after the alarm is given, special oil can be added in time, and the use efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a power transformer, in particular to a high energy efficiency oil-immersed power transformer, belonging to the technical field of power transformers. Background Art

[0002] The oil-immersed transformer is a new type of high-performance transformer with a more reasonable structure and better performance. Its three-dimensional wound core has three core columns arranged in an equilateral triangle, with no air gap in the magnetic circuit, tighter winding, and the three magnetic circuits are of the same length and the shortest. The cross-sectional area of ​​the core column is closer to a circle, so the performance is further improved, the loss is reduced, the noise is reduced, the three items are balanced, and the third harmonic component is reduced. This product is more suitable for urban and rural, industrial and mining enterprise power grid transformation, and is more suitable for combined transformers and prefabricated substation transformers.

[0003] Among them, a low-noise oil-immersed power transformer with application number "CN202321579773.0" can include an oil-immersed power transformer main body, a sound insulation box is arranged outside the oil-immersed power transformer main body, a water tank is arranged inside the sound insulation box, a heat conduction rod is arranged inside the water tank, a heat absorption plate is arranged at one end of the heat conduction rod and is bonded to the oil-immersed power transformer main body, a heat dissipation plate is arranged at the other end of the heat conduction rod, a sound insulation board is arranged inside the sound insulation box, and a water storage cavity connected to the water tank is arranged on one side of the sound insulation board. The low-noise oil-immersed power transformer achieves noise reduction of the main body of the oil-immersed power transformer through the sound insulation board, and at the same time improves the heat dissipation effect of the main body of the oil-immersed power transformer through the heat absorption plate, the heat conduction rod, the heat dissipation plate, the water tank, and the fan, thereby increasing the service life of the main body of the oil-immersed power transformer and preventing the transmission of noise caused by vibration. Further search found that the application number is "CN202221147963.0" and a high-efficiency oil-immersed transformer with rapid exhaust will include an oil tank mechanism and an oil-immersed transformer body, wherein the oil tank mechanism includes an oil tank, a separation unit, and an exhaust unit; the oil The upper surface of the box is connected to the air outlet pipe; the separation unit includes a separation barrel, a connecting pipe, an oil pipe, an oil delivery pipe, a movable plate, an electric push rod and a conveying assembly. The middle part of the lower surface of the separation barrel is connected to the connecting pipe, and the lower end of the connecting pipe is connected to the upper surface of the oil tank through the oil pipe. The upper surface of the separation barrel is connected to the exhaust pipe, and the lower part of the side surface of the separation barrel is connected to the oil delivery pipe. The upper inner wall of the separation barrel is fixedly connected to the movable plate through an electric push rod, so that the tiny bubbles contained in the transformer oil can float up and burst quickly, and the separated air can be discharged, thereby reducing the collision between the hydraulic oil and the inner wall of the pipeline and avoiding the re-mixing of air.

[0004] However, the above two types still have certain shortcomings when used. The existing oil-immersed transformers are inconvenient to add special oil in time, which affects the use efficiency. The use method is single, which affects the surrounding use effect and use environment. Utility Model Content

[0005] The utility model aims to provide a high energy efficiency oil-immersed power transformer to solve the problem that the welding fixture in the prior art mentioned in the above background technology has general applicability and is not convenient for clamping and positioning metal products of a certain size.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-energy-efficiency oil-immersed power transformer, comprising a base plate, a transformer body is provided in the middle of the top of the base plate, an oil drum is provided on one side of the top of the transformer body, a high-efficiency component is provided on the top of the base plate, two U-shaped covers are movably provided on the outer ring of the top of the base plate, one side of one of the U-shaped covers is provided with a refueling barrel, the high-efficiency component comprises a liquid level gauge, the liquid level gauge is arranged inside the oil drum, a Fengming alarm is provided on the top of the oil drum, an oil pump is provided on the top of the refueling barrel, the inlet end of the oil pump is connected to the bottom of the inner wall of the refueling barrel through a connecting pipe, and the outlet end of the oil pump is connected to the top of the inner wall of the oil drum through a spring tube.

[0007] As a preferred technical solution of the utility model, a noise reduction component is provided at the top of the base plate, and the noise reduction component includes two slide grooves, and the two slide grooves are respectively opened on both sides of the top of the base plate, and two sliders are slidably provided inside the two slide grooves, and the top ends of the four sliders are respectively connected to the two sides of the two sides of the bottom ends of the two U-shaped covers.

[0008] As a preferred technical solution of the utility model, electric hydraulic cylinders are provided on both sides of the inner wall of one of the slide grooves, and the output ends of the electric hydraulic cylinders are respectively connected to the middle of one side of two of the slide blocks.

[0009] As a preferred technical solution of the utility model, the inner walls of the two U-shaped covers are both provided with sound insulation cotton layers, and the inner walls of the two sound insulation cotton layers are both provided with sound absorption cotton layers.

[0010] As a preferred technical solution of the utility model, an inlet pipe is obliquely inserted and connected at the top of the refueling barrel, and a threaded cap is provided on the top thread of the inlet pipe.

[0011] As a preferred technical solution of the utility model, a switch panel is provided on the top of one side of the base plate, and an electric hydraulic cylinder switch and an oil pump switch are respectively installed on the surface of the switch panel. Both of the two electric hydraulic cylinders are electrically connected to an external power supply through the electric hydraulic cylinder switch.

[0012] As a preferred technical solution of the utility model, the liquid level meter is electrically connected to the oil pump through a Fengming alarm, and the oil pump is electrically connected to an external power supply through an oil pump switch.

[0013] Compared with the related art, the high energy efficiency oil-immersed power transformer provided by the utility model has the following beneficial effects:

[0014] The oil level in the oil barrel is sensed by the liquid level gauge arranged in the high-efficiency component. When the oil level is low, the Fengming alarm will sound an alarm. After the alarm is sounded, the oil in the refueling barrel is introduced into the oil barrel through the spring tube by the oil pump. The electric hydraulic cylinder arranged in the noise reduction component drives the slider to move in the slide groove and drives the two U-shaped covers to move relative to each other to set the transformer body enclosure cover. The sound insulation cotton layer and the sound absorbing cotton layer cooperate with the U-shaped cover to form a sound insulation cover, thereby solving the technical problem that it is inconvenient to add special oil in time for the existing oil-immersed transformer, which affects the use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 It is a side cross-sectional structural schematic diagram of the utility model;

[0018] Figure 4 It is a schematic diagram of the top cross-sectional structure of the utility model.

[0019] In the figure: 1. Base plate; 2. U-shaped cover; 3. Transformer body; 4. High-efficiency component; 41. Liquid level gauge; 42. Fengming alarm; 43. Oil pump; 44. Spring tube; 45. Connecting pipe; 5. Oil cylinder; 6. Noise reduction component; 61. Slide; 62. Slider; 63. Electric hydraulic cylinder; 64. Sound insulation cotton layer; 65. Sound-absorbing cotton layer; 7. Fuel tank; 8. Switch panel; 9. Inlet pipe; 10. Threaded cover. DETAILED DESCRIPTION

[0020] 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.

[0021] Embodiment 1:

[0022] See also Figure 1-4The utility model provides a high energy efficiency oil-immersed power transformer, including a bottom plate 1, a transformer body 3 is arranged in the middle of the top of the bottom plate 1, an oil cylinder 5 is arranged on one side of the top of the transformer body 3, a high-efficiency component 4 is arranged on the top of the bottom plate 1, two U-shaped covers 2 are movably arranged on the outer ring of the top of the bottom plate 1, a refueling barrel 7 is arranged on one side of one side of the U-shaped cover 2, an oil pump 43 is arranged on the top of the refueling barrel 7, an inlet end of the oil pump 43 is connected to the bottom of the inner wall of the refueling barrel 7 through a connecting pipe 45, and an outlet end of the oil pump 43 is connected to the top of the inner wall of the oil cylinder 5 through a spring tube 44, so as to facilitate the introduction of oil into the oil cylinder 5;

[0023] The top of the refueling barrel 7 is obliquely connected with an inlet pipe 9, and the top of the inlet pipe 9 is threaded with a threaded cover 10, which is convenient for adding an appropriate amount of special oil;

[0024] The liquid level meter 41 is electrically connected to the oil pump 43 through the Fengming alarm 42, and the oil pump 43 is electrically connected to the external power supply through the oil pump switch, which is convenient for control and use;

[0025] Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the liquid level meter 41 provided in the high-efficiency component 4 senses the amount of oil in the oil cylinder 5. When the amount of oil is low, the Fengming alarm 42 sounds an alarm. After the alarm, the oil in the refueling barrel 7 is introduced into the oil cylinder 5 through the spring tube 44 by the oil pump 43, so that special oil can be added in time to improve the use efficiency.

[0026] Embodiment 2:

[0027] A noise reduction component 6 is provided at the top of the bottom plate 1. The noise reduction component 6 includes two slide grooves 61. The two slide grooves 61 are respectively opened on both sides of the top of the bottom plate 1. Two sliders 62 are slidably provided inside the two slide grooves 61. The tops of the four sliders 62 are respectively connected to the two sides of the bottom ends of the two U-shaped covers 2.

[0028] An electric hydraulic cylinder 63 is provided on both sides of the inner wall of one of the slide grooves 61, and the output ends of the electric hydraulic cylinder 63 are respectively connected to the middle of one side of two sliders 62, so as to drive the two U-shaped covers 2 to move the noise reduction cover body relative to each other;

[0029] The inner walls of the two U-shaped covers 2 are both provided with a sound insulation cotton layer 64, and the inner walls of the two sound insulation cotton layers 64 are both provided with a sound absorption cotton layer 65, which is convenient for sound absorption and noise reduction;

[0030] A switch panel 8 is provided on the top of one side of the bottom plate 1. The surface of the switch panel 8 is respectively installed with an electric hydraulic cylinder switch and an oil pump switch. Both electric hydraulic cylinders 63 are electrically connected to an external power supply through the electric hydraulic cylinder switch, which is convenient for control and use.

[0031] Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the electric hydraulic cylinder 63 arranged in the noise reduction component 6 drives the slider 62 to move in the slide groove 61, and at the same time drives the two U-shaped covers 2 to move relatively to cover the transformer body 3. The sound insulation cotton layer 64 and the sound absorption cotton layer 65 cooperate with the U-shaped cover 2 to form a sound insulation cover, which reduces the impact of the noise generated by the transformer body 3 on the environment. The electric hydraulic cylinder 63 drives the movement of the U-shaped cover 2 to facilitate the selection of noise reduction use or normal use, provide different usage methods, and improve the use effect.

[0032] When in use, firstly, the amount of oil in the oil cylinder 5 is sensed by the liquid level meter 41 arranged in the high-efficiency component 4. When the amount of oil is detected to be low, the Fengming alarm 42 will sound an alarm. After the alarm, the oil in the refueling barrel 7 is introduced into the oil cylinder 5 through the spring tube 44 by the oil pump 43, so that special oil can be added in time to improve the use efficiency. The electric hydraulic cylinder 63 arranged in the noise reduction component 6 drives the slider 62 to move in the slide groove 61 while driving the two U-shaped covers 2 to move relative to each other to enclose the transformer body 3. The sound insulation cotton layer 64 and the sound absorbing cotton layer 65 cooperate with the U-shaped cover 2 to form a sound insulation cover, which reduces the impact of the noise generated by the transformer body 3 on the surrounding environment. The electric hydraulic cylinder 63 drives the movement of the U-shaped cover 2 to facilitate the selection of noise reduction use or normal use, provide different usage methods, and improve the use effect.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high energy efficiency oil-immersed power transformer, comprising a base plate (1), characterized in that: A transformer body (3) is provided in the middle of the top of the base plate (1), an oil drum (5) is provided on one side of the top of the transformer body (3), a high-efficiency component (4) is provided on the top of the base plate (1), two U-shaped covers (2) are movably provided on the outer ring of the top of the base plate (1), a refueling barrel (7) is provided on one side of one of the U-shaped covers (2), the high-efficiency component (4) comprises a liquid level gauge (41), the liquid level gauge (41) is arranged inside the oil drum (5), a phoenix alarm (42) is provided on the top of the oil drum (5), an oil pump (43) is provided on the top of the refueling barrel (7), an inlet end of the oil pump (43) is connected to the bottom of the inner wall of the refueling barrel (7) through a connecting pipe (45), and an outlet end of the oil pump (43) is connected to the top of the inner wall of the oil drum (5) through a spring tube (44).

2. The high energy efficiency oil-immersed power transformer according to claim 1, characterized in that: A noise reduction component (6) is provided at the top of the bottom plate (1), and the noise reduction component (6) comprises two slide grooves (61), the two slide grooves (61) are respectively opened on both sides of the top of the bottom plate (1), two sliders (62) are slidably provided inside the two slide grooves (61), and the top ends of the four sliders (62) are respectively connected to the two sides of the bottom ends of the two U-shaped covers (2).

3. The high energy efficiency oil-immersed power transformer according to claim 2, characterized in that: An electric hydraulic cylinder (63) is provided on both sides of the inner wall of one of the slide grooves (61), and the output ends of the electric hydraulic cylinder (63) are respectively connected to the middle of one side of two of the slide blocks (62).

4. The high energy efficiency oil-immersed power transformer according to claim 1, characterized in that: The inner walls of the two U-shaped covers (2) are both provided with a sound insulation cotton layer (64), and the inner walls of the two sound insulation cotton layers (64) are both provided with a sound absorption cotton layer (65).

5. The high energy efficiency oil-immersed power transformer according to claim 1, characterized in that: An inlet pipe (9) is obliquely inserted and connected to the top of the refueling barrel (7), and a threaded cover (10) is threadedly provided at the top end of the inlet pipe (9).

6. The high energy efficiency oil-immersed power transformer according to claim 3, characterized in that: A switch panel (8) is provided at the top of one side of the base plate (1), and an electric hydraulic cylinder switch and an oil pump switch are respectively installed on the surface of the switch panel (8), and the two electric hydraulic cylinders (63) are electrically connected to an external power supply via the electric hydraulic cylinder switch.

7. The high energy efficiency oil-immersed power transformer according to claim 1, characterized in that: The liquid level meter (41) is electrically connected to the oil pump (43) via the Fengming alarm (42), and the oil pump (43) is electrically connected to an external power source via the oil pump switch.

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