New energy wind power generation high efficiency energy saving 35kv dry-type transformer

Abstract

The utility model relates to dry type double split transformer technical field discloses high -efficient energy -conserving 35KV dry type transformer for new energy wind power generation, including base, the base top is provided with connecting seat, the connecting seat bottom is provided with damping assembly, the connecting seat top fixedly connected with transformer, the transformer top fixedly connected with connecting frame, the connecting frame top is provided with line frame, the line frame outer wall is provided with dismounting assembly, the damping assembly includes damper and spring no.

Description

Technical Field

[0001] This utility model relates to the field of dry-type double-split transformer technology, and in particular to a high-efficiency and energy-saving 35KV dry-type transformer for new energy wind power generation. Background Technology

[0002] High-efficiency, energy-saving 35kV dry-type transformers for new energy wind power generation are key transformer equipment in power systems, widely used in new energy power generation, industrial production, and urban power supply. With their high efficiency, energy saving, excellent insulation performance, and flexible operation, they play a vital role in power transmission and distribution. As the new energy industry rapidly develops and electricity demand continues to grow, the performance requirements for these transformers are becoming increasingly stringent. They not only need stable electrical performance but also must maintain good mechanical structural stability under complex operating conditions.

[0003] In existing technologies, the core and base of dry-type double-split transformers typically employ a rigid connection structure, with the core directly fixed to the base using bolts or other fasteners. The underlying principle is to utilize the high strength of this rigid connection to ensure the relative positional stability between the core and base, thereby guaranteeing the coordinated operation of all components during transformer operation and reducing the impact of positional misalignment on electrical performance. The connection between the windings and the line frame is often achieved through welding or multiple sets of bolts, enhancing the connection strength to ensure the stability of the line frame.

[0004] However, in the existing technology, the rigid connection structure between the core and the base cannot effectively cope with the vibration and impact under different installation environments. When subjected to external vibration or radial force generated by short-circuit current, the vibration energy is directly transmitted to the core and windings, which can easily lead to deformation, loosening or even damage of components, seriously affecting the structural stability and vibration resistance of the transformer and shortening the service life of the equipment. Therefore, a high-efficiency and energy-saving 35KV dry-type transformer for new energy wind power generation is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-efficiency and energy-saving 35KV dry-type transformer for new energy wind power generation, which aims to improve the problem that fixed connections are susceptible to vibration and shock, leading to component damage in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-efficiency and energy-saving 35KV dry-type transformer for new energy wind power generation includes a base, a connecting seat on the top of the base, a shock-absorbing component at the bottom of the connecting seat, a transformer fixedly connected to the top of the connecting seat, a connecting frame fixedly connected to the top of the transformer, a line frame on the top of the connecting frame, and a disassembly and assembly component on the outer wall of the line frame.

[0008] The damping assembly includes a damper and a spring. The top of the damper is fixedly connected to the bottom of the connecting seat, and the bottom of the damper is fixedly connected to the top of the base. A base column is fixedly connected to the top of the base. The spring is internally sleeved on the outer wall of the base column. Slip rings are fixedly connected to both ends of the base column. The slip rings are internally slidably connected to the outer wall of the base column. A rotating rod is rotatably connected to the top of the slip ring. A fixed ring is rotatably connected to the top of the rotating rod. A top column is fixedly connected to the inner wall of the fixed ring. The top of the top column is fixedly connected to the bottom of the connecting seat.

[0009] As a further description of the above technical solution:

[0010] The assembly / disassembly assembly includes a locking post, the outer wall of which is disposed at the bottom of the line frame.

[0011] As a further description of the above technical solution:

[0012] The connecting frame has a slot inside and a sliding groove inside.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the card post is slidably connected inside the card slot, and the outer wall of the card post slides out from inside the slot.

[0015] As a further description of the above technical solution:

[0016] The inner wall of the line frame has a limiting groove, and a push rod is slidably connected inside the line frame.

[0017] As a further description of the above technical solution:

[0018] The bottom end of the push rod is fixedly connected to the outer wall of the locking post, and a limit ring is rotatably connected to the outer wall of the push rod.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the limiting ring is slidably connected inside the limiting groove, and the outer wall of the push rod is slidably connected inside the connecting frame.

[0021] As a further description of the above technical solution:

[0022] The outer wall of the push rod is fitted with a second spring. The top of the second spring is fixedly connected to the bottom end of the limiting ring, and the bottom end of the second spring is fixedly connected to the inner wall of the line frame.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the damper and spring achieve their compression function through vibration. When vibration occurs, the vibration drives the top column and bottom column and cooperates with the rotating rod to achieve compression and rebound of the spring and damper between the connecting seat and the base. It can adapt to the vibration impact of different installation environments, absorb the radial force generated by short circuit current, reduce winding deformation and noise transmission, solve the problem that traditional fixed connections are easily damaged by vibration impact, and improve the structural stability and vibration resistance of transformers under complex working conditions.

[0025] 2. In this utility model, the locking post achieves its movement function by pushing the push rod. When the push rod is pushed, the limit ring and the locking post are driven by the push rod and cooperate with the second spring to realize the sliding of the locking post inside the slot, thereby facilitating the disassembly and assembly of the line frame, making it convenient for maintenance, replacement and movement. This solves the problem that multiple tools are required for disassembly and assembly in the existing system, which makes disassembly inconvenient, and improves the convenience of disassembly and assembly of the device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the high-efficiency and energy-saving 35KV dry-type transformer for new energy wind power generation proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the damper structure of the high-efficiency and energy-saving 35KV dry-type transformer for new energy wind power generation proposed in this utility model.

[0028] Figure 3 This is a schematic diagram of the rotating rod of the high-efficiency and energy-saving 35KV dry-type transformer for new energy wind power generation proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the internal structure of the connection frame of the high-efficiency and energy-saving 35KV dry-type transformer for new energy wind power generation proposed in this utility model.

[0030] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0031] Legend:

[0032] 1. Base; 2. Transformer; 3. Connecting frame; 4. Line frame; 5. Connecting seat; 6. Damper; 7. Base column; 8. Spring 1; 9. Slip ring; 10. Fixing ring; 11. Top column; 12. Rotating rod; 13. Locking post; 14. Locking groove; 15. Spring 2; 16. Limiting ring; 17. Push rod; 18. Limiting groove; 19. Sliding groove. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-3 This utility model provides an embodiment of a high-efficiency and energy-saving 35KV dry-type transformer for new energy wind power generation, including a base 1. The base 1 is a frame structure welded from steel plates, with anti-slip pads at the four corners of the bottom to support the weight of the entire transformer and provide stable support, preventing displacement of the equipment during operation or vibration, and ensuring the stability of the installation foundation. A connecting seat 5 is provided on the top of the base 1, and a shock-absorbing component is provided at the bottom of the connecting seat 5. The transformer 2 is fixedly connected to the top of the connecting seat 5. The internal core material is high-quality iron core material such as Baosteel or Wuhan Iron and Steel, 065 / 070 silicon steel, and the magnetic flux density parameters are reasonably designed to reduce no-load loss by more than 20%-30%. The cross-section of the iron core is a multi-level stepped shape and an optimized elongated circle. The transformer features a unique structure to reduce additional losses caused by uneven magnetic flux distribution. During calcination, a segmented, layered, folded, and reverse-rotating structure is employed. Insulating glass fiber mesh is installed between each winding segment, along with a honeycomb-type ventilation channel with large pores to enhance heat dissipation and insulation strength. Two sets of low-voltage windings are symmetrically distributed, and the magnetic potential difference between the split windings is balanced through magnetic circuit compensation design. A shielding layer is also included to isolate and filter harmonic effects. Furthermore, 30%-40% silica thermally conductive filler is added to the epoxy resin formulation, increasing the thermal conductivity to over 1.5 W / (m·K). A vacuum casting static process is used to eliminate air bubbles, improve insulation strength, and reduce the risk of partial discharge. Elastic silicone gaskets are placed between the core and windings, and a rectangular shock absorber is installed on the base, reducing noise to below 50 dB. A connecting frame 3 is fixedly connected to the top of transformer 2, and a line frame 4 is installed on the top of the connecting frame 3. Disassembly and assembly components are installed on the outer wall of the line frame 4.

[0035] The shock absorption assembly includes a damper 6 and a spring 8. The top of the damper 6 is fixedly connected to the bottom of the connecting seat 5, and the bottom of the damper 6 is fixedly connected to the top of the base 1. The damper 6 is a hydraulic damper, and the cylinder is made of 45# steel and filled with high-viscosity hydraulic oil. The top of the base 1 is fixedly connected to a base column 7. The spring 8 is sleeved inside the outer wall of the base column 7. Both ends of the base column 7 are fixedly connected to slip rings 9. The slip rings 9 are ring-shaped structures made of polytetrafluoroethylene, and the inner wall is clearance-fitted with the outer wall of the base column 7. The slip rings 9 are slidably connected to the outer wall of the base column 7. The top of the slip rings 9 is rotatably connected to a rotating rod 12. The rotating rod 12 is a rod-shaped structure made of 20# steel, and bearing connectors are provided at both ends. The top of the rotating rod 12 is rotatably connected to a fixing ring 10. The inner wall of the fixing ring 10 is fixedly connected to a top column 11. The top of the top column 11 is fixedly connected to the bottom of the connecting seat 5.

[0036] Reference Figure 1 , Figure 4 and Figure 5 The assembly and disassembly components include a retaining post 13, which is a cylindrical steel structure with a hardened surface to enhance wear resistance. The outer wall of the retaining post 13 is located at the bottom of the line frame 4. A retaining groove 14 is provided inside the connecting frame 3; the groove 14 is a cylindrical recess that matches the retaining post 13, used to accommodate and limit its movement, ensuring the accuracy of the line frame 4's installation position. A sliding groove 19 is provided inside the connecting frame 3, and the outer wall of the retaining post 13 is slidably connected to the groove 14, sliding out of the groove 19. A limiting groove 18 is provided on the inner wall of the line frame 4; the limiting groove 18 is an annular groove used to limit the movement of the retaining circle. The movement trajectory of ring 16 is designed to prevent it from deviating during sliding. A push rod 17 is slidably connected inside the line frame 4. The push rod 17 is a rod-shaped structure made of aluminum alloy with anti-slip texture on the surface for easy gripping and force application by the operator. The bottom end of the push rod 17 is fixedly connected to the outer wall of the locking post 13. The outer wall of the push rod 17 is rotatably connected to a limiting ring 16. The outer wall of the limiting ring 16 is slidably connected inside the limiting groove 18. The outer wall of the push rod 17 is slidably connected inside the connecting frame 3. A second spring 15 is sleeved on the outer wall of the push rod 17. The top of the second spring 15 is fixedly connected to the bottom end of the limiting ring 16, and the bottom end of the second spring 15 is fixedly connected to the inner wall of the line frame 4.

[0037] Working Principle: When voltage fluctuations or external vibrations cause transformer 2 to shift, transformer 2 will synchronously move connecting seat 5, thereby compressing damper 6. During this process, the movement of connecting seat 5 will cause top column 11 to move downwards, which in turn pushes fixed ring 10 to move. The movement of fixed ring 10 will cause rotating rod 12 to rotate, which in turn pushes slip ring 9 to slide on the outer wall of bottom column 7, thereby generating compressive force on spring 8. When the vibration energy weakens, spring 8 and damper 6 will, by virtue of their own rebound characteristics, jointly drive connecting seat 5 back to its initial position. Through this series of buffering and resetting actions, the impact force caused by vibration is effectively weakened, reducing power transmission losses and damage to device components.

[0038] Additionally, when maintenance is required on the line frame 4, the operator can push the push rod 17. The push rod 17 will cause the locking pin 13 to slide out of the locking slot 14, and simultaneously cause the limiting ring 16 to slide within the limiting groove 18. During this process, the second spring 15 will be compressed. Then, the push rod 17 will be rotated, causing the locking pin 13 to rotate to a position aligned with the sliding groove 19. Since the limiting ring 16 and the push rod 17 are connected by a bearing, the rotation will prevent the second spring 15 from being twisted. Then, the push rod 17 will be released, and the second spring 15 will use its rebound force to cause the locking pin 13 to slide out of the sliding groove 19. At this point, the operator can remove the line frame 4 for maintenance. The entire process does not require multiple tools, making it convenient and efficient.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency and energy-saving 35KV dry-type transformer for new energy wind power generation, including a base (1), characterized in that: The base (1) is provided with a connecting seat (5) at the top, and a shock-absorbing component is provided at the bottom of the connecting seat (5). A transformer (2) is fixedly connected to the top of the connecting seat (5), and a connecting frame (3) is fixedly connected to the top of the transformer (2). A line frame (4) is provided on the top of the connecting frame (3), and a disassembly and assembly component is provided on the outer wall of the line frame (4). The damping assembly includes a damper (6) and a spring (8). The top of the damper (6) is fixedly connected to the bottom of the connecting seat (5), and the bottom of the damper (6) is fixedly connected to the top of the base (1). The top of the base (1) is fixedly connected to a bottom column (7). The spring (8) is sleeved inside the outer wall of the bottom column (7). Both ends of the bottom column (7) are fixedly connected to slip rings (9). The slip rings (9) are slidably connected inside to the outer wall of the bottom column (7). The top of the slip rings (9) is rotatably connected to a rotating rod (12). The top of the rotating rod (12) is rotatably connected to a fixed ring (10). The inner wall of the fixed ring (10) is fixedly connected to a top column (11). The top of the top column (11) is fixedly connected to the bottom of the connecting seat (5).

2. The high-efficiency energy-saving 35KV dry-type transformer for new energy wind power generation according to claim 1, characterized in that: The assembly / disassembly assembly includes a locking post (13), the outer wall of which is disposed at the bottom of the line frame (4).

3. The high-efficiency energy-saving 35KV dry-type transformer for new energy wind power generation according to claim 2, characterized in that: The connecting frame (3) has a slot (14) inside and a sliding groove (19) inside.

4. The high-efficiency energy-saving 35KV dry-type transformer for new energy wind power generation according to claim 3, characterized in that: The outer wall of the locking post (13) is slidably connected inside the locking groove (14), and the outer wall of the locking post (13) slides out from inside the sliding groove (19).

5. The high-efficiency energy-saving 35KV dry-type transformer for new energy wind power generation according to claim 4, characterized in that: The inner wall of the line frame (4) is provided with a limiting groove (18), and a push rod (17) is slidably connected inside the line frame (4).

6. The high-efficiency energy-saving 35KV dry-type transformer for new energy wind power generation according to claim 5, characterized in that: The bottom end of the push rod (17) is fixedly connected to the outer wall of the locking post (13), and the outer wall of the push rod (17) is rotatably connected to a limiting ring (16).

7. The high-efficiency energy-saving 35KV dry-type transformer for new energy wind power generation according to claim 6, characterized in that: The outer wall of the limiting ring (16) is slidably connected to the inside of the limiting groove (18), and the outer wall of the push rod (17) is slidably connected to the inside of the connecting frame (3).

8. The high-efficiency energy-saving 35KV dry-type transformer for new energy wind power generation according to claim 7, characterized in that: The push rod (17) is fitted with a second spring (15) on its outer wall. The top of the second spring (15) is fixedly connected to the bottom of the limiting ring (16), and the bottom of the second spring (15) is fixedly connected to the inner wall of the line frame (4).

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