Distribution transformer
By designing a leak-proof recovery structure in the distribution transformer, the problem of oil leakage and diffusion of the oil immersed transformer is solved, and the collection and storage of oil is realized, which improves the stability and environmental protection effect of the transformer.
Patent Information
- Application Number
- CN202421887780.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-06
AI Technical Summary
Oil-immersed transformers are prone to oil leakage during use, causing oil diffusion, affecting the performance and environmental pollution of the transformer.
Design a distribution transformer that includes a leak-proof recycling structure with a fixed chassis, collection tank, diversion tank and collection box to collect and store leaked insulating oil to prevent the diffusion of oil.
Effectively prevent the diffusion of oil, maintain the purity and performance of the insulating oil, extend the service life of the transformer, reduce maintenance and replacement costs, and reduce environmental impact.
Smart Images
Figure CN223065951U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, and more specifically, the utility model relates to a distribution transformer. Background Art
[0002] A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. Its main components are the primary coil, secondary coil, and iron core. The oil-immersed transformer is a new type of high-performance transformer with a more reasonable structure and better performance. Its three core columns of the three-dimensional wound iron core are arranged in an equilateral triangle in three dimensions. There is no air gap in its magnetic circuit, the winding is tighter, the lengths of the three magnetic circuits are the same and the shortest, and the cross-sectional area of the iron core column is closer to a circle. Therefore, its performance is further improved, the loss is reduced, the noise is reduced, the three-phase balance is achieved, and the third harmonic component is reduced. This product is more suitable for the transformation of urban and rural, industrial and mining enterprise power grids, and is more suitable for transformers used in combined transformers and prefabricated substations. In daily use, the oil-immersed transformer is inevitably damaged under various natural conditions. The oil-immersed transformer may leak, and after the leakage occurs, it will not only affect the operation of the transformer, but also the leaked insulating oil will pollute the environment. Summary of the Utility Model
[0003] In order to overcome the deficiencies of the prior art, the utility model provides a distribution transformer, which has the advantages of being convenient for recycling oil leakage, preventing the spread of oil, and reducing the impact on the environment.
[0004] To achieve the above object, the utility model provides the following technical solution: A distribution transformer, including a fixed chassis, a fixed groove is opened at the upper end of the fixed chassis, a positioning hole is opened at the upper end of the fixed chassis, a collection groove is opened at the lower end of the fixed groove, a diversion groove one is opened inside the fixed chassis, a diversion groove two is opened inside the fixed chassis, a collection box is fixedly connected to the left end inside the fixed chassis, an oil outlet valve is fixedly connected to the left end of the collection box, a fuel tank is fixedly connected to the upper end of the fixed groove, heat dissipation devices are fixedly connected to the sides of the fuel tank, an oil conservator is fixedly connected to the left end of the fuel tank, a low-voltage bushing is fixedly connected to the upper end of the fuel tank, a high-voltage bushing is fixedly connected to the upper end of the fuel tank, and a fixing bolt is engaged inside the positioning hole.
[0005] As a preferred technical solution of the utility model, the area value of the fixed groove is equal to the area value of the fuel tank, the vertical cross-section of the positioning hole is "convex", and there are four positioning holes evenly distributed at the four corners of the fixed chassis.
[0006] As a preferred technical solution of the utility model, the collection grooves are evenly distributed inside the fixed chassis, and the lower ends of adjacent collection grooves on the left and right are connected to each other through the diversion groove one, and the lower ends of adjacent collection grooves in the front and back are connected to each other through the diversion groove two.
[0007] As a preferred technical solution of the present utility model, the bottom surface of the fixed groove and the bottom surface of the collection groove are inclined, and the side of the bottom surface of the fixed groove and the bottom surface of the collection groove close to the collection box is lower than the side far from the collection box.
[0008] As a preferred technical solution of the present utility model, the height value of the part of the bottom surface of the fixed groove close to the collection groove is lower than the edge position.
[0009] As a preferred technical solution of the present utility model, the bottom surface of the fixed chassis is flat, and the oil outlet valve is located at a position close to the lower end of the collection box.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0011] 2. The present utility model forms a leak-proof recovery structure by arranging a collection groove, a diversion groove I, a diversion groove II and a collection box inside the fixed chassis, which is used to collect and store any insulating oil that may leak out. These structures can prevent the oil from spreading when oil leakage occurs, reduce oxidation and corrosion inside the transformer, maintain the purity and performance stability of the insulating oil, which helps to extend the service life of the oil-immersed transformer, reduce maintenance and replacement costs, reduce the impact on the environment, and facilitate subsequent cleaning and disposal work.
[0012] 1. The present utility model simply locates the installation position by opening positioning holes at the four corners of the fixed chassis. Installing the fixed chassis first during the installation process is beneficial to increase stability. Compared with the process of directly installing the transformer, it avoids damage to internal components caused by possible shaking during the installation process, and increases the safety and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic structural diagram of the present utility model;
[0014] Figure 2 It is a schematic diagram of the fixed chassis of the structure of the present utility model;
[0015] Figure 3 It is a schematic diagram of the left side of the fixed chassis of the structure of the present utility model;
[0016] Figure 4 It is a schematic diagram of the diversion groove I of the structure of the present utility model;
[0017] Figure 5 It is a schematic diagram of the diversion groove II of the structure of the present utility model.
[0018] In the figure: 1, fixed chassis; 2, fixed slot; 3, positioning hole; 4, collection tank; 5, first diversion channel; 6, second diversion channel; 7, collection box; 8, oil outlet valve; 9, fixing bolt; 10, fuel tank; 11, heat dissipation device; 12, oil conservator; 13, low-voltage bushing; 14, high-voltage bushing. Specific implementation manner
[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0020] As Figures 1 to 5 shown, the present invention provides a distribution transformer, including a fixed chassis 1. A fixed slot 2 is opened at the upper end of the fixed chassis 1, a positioning hole 3 is opened at the upper end of the fixed chassis 1, a collection tank 4 is opened at the lower end of the fixed slot 2, a first diversion channel 5 is opened inside the fixed chassis 1, a second diversion channel 6 is opened inside the fixed chassis 1, a collection box 7 is fixedly connected to the left end inside the fixed chassis 1, an oil outlet valve 8 is fixedly connected to the left end of the collection box 7, a fuel tank 10 is fixedly connected to the upper end of the fixed slot 2, heat dissipation devices 11 are fixedly connected to the sides of the fuel tank 10, an oil conservator 12 is fixedly connected to the left end of the fuel tank 10, a low-voltage bushing 13 is fixedly connected to the upper end of the fuel tank 10, a high-voltage bushing 14 is fixedly connected to the upper end of the fuel tank 10, and a fixing bolt 9 is engaged inside the positioning hole 3.
[0021] By providing the collection tank 4, the first diversion channel 5, the second diversion channel 6 and the collection box 7 on the fixed chassis 1, it is used to collect and store any insulating oil that may leak. These structures can prevent the oil from spreading when oil leakage occurs, reduce the impact on the environment, and facilitate subsequent cleaning and treatment work.
[0022] Among them, the area value of the fixed slot 2 is equal to the area value of the fuel tank 10. The vertical cross-section of the positioning hole 3 is "convex", and there are four positioning holes 3 evenly distributed at the four corners of the fixed chassis 1.
[0023] It is convenient for installation and fixation to determine the position. During the installation process, the fixing point can be directly inserted into the positioning hole 3 for fixation.
[0024] Among them, the collection tanks 4 are equally spaced inside the fixed chassis 1. The lower ends between adjacent collection tanks 4 on the left and right are connected to each other through the first diversion channel 5, and the lower ends between adjacent collection tanks 4 in the front and back are connected to each other through the second diversion channel 6.
[0025] The first diversion groove 5 and the second diversion groove 6 connect the lower ends of the collection tank 4, which is beneficial for recycling insulating oil. The collection box 7 can completely isolate and collect the insulating oil, effectively protecting the pipeline.
[0026] Among them, the bottom surfaces of the fixed groove 2 and the collection tank 4 are inclined. The sides of the bottom surfaces of the fixed groove 2 and the collection tank 4 close to the collection box 7 are lower than the sides far from the collection box 7.
[0027] This is beneficial for the insulating oil entering the interior of the collection tank 4 to flow along the inclined bottom surface into the collection box 7 for recycling and storage.
[0028] Among them, the height value of the part of the bottom surface of the fixed groove 2 close to the collection tank 4 is lower than the edge position.
[0029] When the fuel tank 10 leaks, it is convenient for the leaked insulating oil to flow into the interior of the collection tank 4 for recycling.
[0030] Among them, the bottom surface of the fixed chassis 1 is flat, and the oil outlet valve 8 is located at a position close to the lower end of the collection box 7.
[0031] This ensures the flatness and stability of the transformer and makes the installation more firm. The position of the oil outlet valve 8 is beneficial for collecting the leaked insulating oil.
[0032] The working principle and usage process of the present utility model:
[0033] When installing the fixed chassis 1, first determine the installation position, insert the positioning holes 3 into the corresponding fixed points, then screw on the fixing bolts 9 for fixation. Then, use a crane to lift the fuel tank 10 and insert it into the fixed groove 2 at the upper end of the fixed chassis 1 for fixation. Fill the interior of the fuel tank 10 with insulating oil. Its main function is to provide good insulation performance under high voltage and at the same time effectively cool the fuel tank 10. However, during long-term use, leakage is inevitable. At this time, the insulating oil leaked from the fuel tank 10 enters the fixed groove 2 and then flows into the interior of the collection tank 4 because the end of the fixed groove 2 close to the collection tank 4 has a lower height value. After entering the collection tank 4, it will enter the first diversion groove 5 or the second diversion groove 6 and finally flow into the interior of the collection box 7 because the bottom end of the collection tank 4 is inclined. When the maintenance and inspection personnel come to carry out maintenance and protection work, open the oil outlet valve 8 to recycle the insulating oil leaked inside the collection box 7, which can prevent the spread of oil when leakage occurs, reduce the impact on the environment, and facilitate subsequent cleaning and treatment work.
[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.
[0035] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A distribution transformer, comprising a fixed chassis (1), characterized in that: A fixing groove (2) is formed at the upper end of the fixing chassis (1), a positioning hole (3) is formed at the upper end of the fixing chassis (1), a collecting groove (4) is formed at the lower end of the fixing groove (2), a first diversion groove (5) is formed inside the fixing chassis (1), a second diversion groove (6) is formed inside the fixing chassis (1), a collecting box (7) is fixedly connected to the left end inside the fixing chassis (1), an oil outlet valve (8) is fixedly connected to the left end of the collecting box (7), a fuel tank (10) is fixedly connected to the upper end of the fixing groove (2), a heat dissipation device (11) is fixedly connected to the side surface of the fuel tank (10), an oil conservator (12) is fixedly connected to the left end of the fuel tank (10), a low-voltage bushing (13) is fixedly connected to the upper end of the fuel tank (10), a high-voltage bushing (14) is fixedly connected to the upper end of the fuel tank (10), and a fixing bolt (9) is engaged inside the positioning hole (3).
2. A distribution transformer according to claim 1, characterized in that: The area value of the fixing groove (2) is equal to the area value of the fuel tank (10), the vertical cross-section of the positioning hole (3) is "convex", and there are four positioning holes (3) evenly distributed at the four corners of the fixing chassis (1).
3. A distribution transformer according to claim 1, characterized in that: The collecting grooves (4) are equally spaced inside the fixing chassis (1), and the lower ends between adjacent collecting grooves (4) on the left and right are connected to each other through the first diversion groove (5), and the lower ends between adjacent collecting grooves (4) in the front and back are connected to each other through the second diversion groove (6).
4. A distribution transformer according to claim 1, characterized in that: The bottom surface of the fixing groove (2) and the bottom surface of the collecting groove (4) are inclined, and the side of the bottom surface of the fixing groove (2) and the bottom surface of the collecting groove (4) close to the collecting box (7) is lower than the side far from the collecting box (7).
5. A distribution transformer according to claim 1, characterized in that: The height value of the part of the bottom surface of the fixing groove (2) close to the collecting groove (4) is lower than the edge position.
6. A distribution transformer according to claim 1, characterized in that: The bottom surface of the fixing chassis (1) is flat, and the oil outlet valve (8) is located at a position close to the lower end of the collecting box (7).