Transformer with oil collecting box
By arranging an oil collecting box and a drainage block under the plate-type radiator, the problems of shortened service life and environmental pollution caused by oil leakage of the transformer are solved, and stable operation of the transformer and environmental protection are achieved.
Patent Information
- Application Number
- CN202422049844.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing large-capacity transformer fin heat sinks are prone to cracks, cold welds, and desoldering during the stamping and welding process, leading to oil leakage, shortening the transformer's service life and polluting the environment.
An oil collecting box is set under the fin radiator to collect and drain the leaked insulating oil through the oil leakage groove and connectors to prevent the oil from seeping into the soil or the environment. Drainage blocks and reinforcement plates are set to improve collection efficiency and stability.
Effectively collect leaked insulating oil, protect transformers from corrosion, extend service life, prevent environmental pollution, and improve heat dissipation effects.
Smart Images
Figure CN223450651U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to transformer technical field especially relates to a transformer with oil collecting box. BACKGROUND
[0002] With the growth of power demand, large capacity transformer has been widely applied, but the heat generated in the operation process of these large capacity transformer is more, so effective heat dissipation measures need to be taken to ensure the normal operation and service life of the transformer. At present, many manufacturers adopt the mode of setting sheet type radiator on the transformer to improve the heat dissipation effect of the transformer, and the sheet type radiator not only is convenient to install, saves space, but also can reduce the manufacturing cost, has very high reliability and stability.
[0003] The radiator pipe in the sheet type radiator is usually made by flattening the seam steel pipe material and then through the stamping process. In the stamping process, the outer wall of the pipe is subjected to tension, and the inner wall of the pipe is subjected to pressure, but after the stamping is completed, residual stress exists in the pipe wall. When the existing residual stress exceeds the strength limit of the pipe wall material, cracks will appear at the stamping position. The radiator pipe is usually welded with the sheet, but due to the influence of factors such as welding material, process and operation, virtual welding and welding off will occur at the welding position, and pinholes, sand holes and other conditions will exist in the welding seam. Due to the above stamping process, welding material, process and operation, the sheet type radiator often leaks oil, and the leakage and loss of insulating oil not only affect the service life of the transformer, but also cause harm to the environment. SUMMARY
[0004] The main purpose of the utility model is to provide a transformer with an oil collecting box, which effectively collects the leaked insulating oil in the sheet type radiator, prevents environmental pollution, avoids corrosion of the insulating oil to the transformer body, prolongs the service life of the transformer, and solves the problems of shortening of the service life of the transformer and pollution of the environment caused by oil leakage of the sheet type radiator.
[0005] To achieve the above purpose, the utility model provides a transformer with an oil collecting box, which comprises a transformer body, a sheet type radiator, a connecting piece and an oil collecting box, the sheet type radiator is arranged on the side wall of the transformer body, the oil collecting box is arranged below the sheet type radiator, the oil collecting box is a box body with an open top, and the oil collecting box is provided with an oil leakage groove and a mounting hole;
[0006] The connecting piece is connected with the sheet type radiator after penetrating through the mounting hole, so as to install the oil collecting box below the sheet type radiator.
[0007] Optionally, the oil leakage groove is arranged on the side of the oil collecting box close to the transformer body.
[0008] Or, the oil leakage groove is arranged on the side of the oil collecting box away from the transformer body.
[0009] Or, the oil leakage groove is arranged on the side of the oil collecting box away from the transformer body.
[0010] Optionally, a drainage block is arranged on the side of the oil collecting box away from the finned radiator, the drainage block is arranged corresponding to the oil leakage groove, the drainage block is provided with a drainage opening penetrating through, the drainage opening is in communication with the oil leakage groove, and the shape of the drainage block matches the shape of the oil leakage groove.
[0011] Optionally, a boss is arranged at the middle position of the oil collecting box.
[0012] Optionally, a plurality of oil collecting boxes are arranged on the same side of the transformer body.
[0013] Optionally, a first gap is arranged between two adjacent oil collecting boxes.
[0014] Optionally, the connecting piece comprises a bolt, a first gasket, a first gasket, a sleeve, a second gasket and a nut.
[0015] The nut is fixedly connected to the bottom of the finned radiator, and the bolt is inserted into the nut after sequentially penetrating through the first gasket, the first gasket, the mounting hole, the sleeve and the second gasket.
[0016] Optionally, the number of the mounting holes is multiple, and the multiple mounting holes are symmetrically arranged on the oil collecting box.
[0017] Optionally, the transformer with the oil collecting box further comprises at least one reinforcing plate, the reinforcing plate is arranged on the side wall of the transformer body and extends along the height direction of the transformer body, and a second gap is arranged between the oil collecting box and the reinforcing plate.
[0018] Optionally, an oil collecting pool is arranged below the transformer body.
[0019] Compared with the prior art, the embodiments of the utility model have the following beneficial effects:
[0020] The utility model discloses technical scheme through setting up the oil collecting box below the sheet type radiator, can gather the insulation oil that leaks in sheet type radiator together, avoid leaking insulation oil to flow to transformer body, influence normal operation of transformer, avoid the corrosion transformer, in the meanwhile protection transformer that can gather the insulation oil that leaks, effectively prolong the service life of transformer, avoid causing the potential safety hazard. The oil leakage groove can make the collected insulation oil flow from the oil collecting box, and the connecting piece passes through the mounting hole, can connect the oil collecting box with sheet type radiator. Through the oil collecting box collection leaks insulation oil, also can prevent the insulation oil from seeping into the soil, water source or surrounding environment, prevent polluting the environment, solved the problem that the sheet type radiator leaks oil leads to the service life of transformer to shorten and pollute the environment. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is the front view of transformer with oil collecting box one embodiment of the utility model;
[0022] Figure 2 It is the side view of transformer with oil collecting box one embodiment of the utility model;
[0023] Figure 3 It is Figure 2 The enlarged view of A in middle;
[0024] Figure 4 It is the local schematic view of transformer with oil collecting box one embodiment of the utility model;
[0025] Figure 5 It is the three-dimensional structure schematic view of oil collecting box of transformer with oil collecting box of the utility model;
[0026] Figure 6 It is the bottom view of oil collecting box and connecting piece of transformer with oil collecting box of the utility model;
[0027] Figure 7 It is the front view of connecting piece of transformer with oil collecting box of the utility model;
[0028] Figure 8 It is the three-dimensional structure schematic view of drainage block of transformer with oil collecting box of the utility model;
[0029] Figure 9 It is the front view of transformer with oil collecting box of the utility model setting oil pool.
[0030] Among them: 1, transformer body, 2, sheet type radiator, 3, connecting piece, 31, bolt, 32, first washer, 33, first gasket, 34, sleeve, 35, second gasket, 36, nut, 4, oil collecting box, 41, oil leakage groove, 42, mounting hole, 43, boss, 44, drainage block, 441, drainage port, 45, first gap, 5, reinforcing plate, 6, second gap, 7, oil collecting pool. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.
[0032] It should be noted that all the directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.
[0033] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0034] In addition, in the present application, the description such as "first", "second", etc. is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that those skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.
[0035] The present application provides a transformer with an oil collecting box.
[0036] In the embodiments of the present application, for example, Figures 1 to 5As shown, the transformer with the oil collecting box comprises a transformer body 1, a finned radiator 2, a connecting piece 3 and an oil collecting box 4, the finned radiator 2 is arranged on the side wall of the transformer body 1, the oil collecting box 4 is arranged below the finned radiator 2, the oil collecting box 4 is a box body with an open top, the oil collecting box 4 is provided with an oil leakage groove 41 and a mounting hole 42, the connecting piece 3 is connected with the finned radiator 2 after penetrating through the mounting hole 42, so as to mount the oil collecting box 4 below the finned radiator 2.
[0037] The technical scheme of the utility model sets the oil collecting box 4 below the finned radiator 2, so that the leaked insulating oil in the finned radiator 2 can be collected together, the leaked insulating oil is prevented from flowing onto the transformer body 1 and affecting the normal operation of the transformer, and the transformer is prevented from being corroded, the transformer is protected while the leaked insulating oil is collected, the service life of the transformer is effectively prolonged, and the safety hidden danger is avoided. The oil leakage groove 41 can make the collected insulating oil flow out of the oil collecting box 4, and the connecting piece 3 can connect the oil collecting box 4 and the finned radiator 2 by penetrating through the mounting hole 42.
[0038] Furthermore, the side wall of the transformer body 1 is provided with a plurality of finned radiators 2, so that the heat dissipation effect of the transformer is effectively improved, the connecting piece 3 is connected with the radiator pipe of the finned radiator 2 by penetrating through the mounting hole 42, and the oil collecting box 4 and the finned radiator 2 are fixed together by the connecting piece 3.
[0039] Referring to Figure 5 and Figure 6 In an embodiment of the present application, the oil leakage groove 41 is arranged on one side of the oil collecting box 4 close to the transformer body 1, or the oil leakage groove 41 is arranged on one side of the oil collecting box 4 away from the transformer body 1, or the oil leakage groove 41 is arranged on one side of the oil collecting box 4 close to the transformer body 1 and one side of the oil collecting box 4 away from the transformer body 1.
[0040] In actual application, the position of the oil leakage groove 41 can be set according to needs, the oil leakage groove 41 can be arranged on one side of the oil collecting box 4 close to or away from the transformer body 1, or the oil leakage groove 41 can be arranged on one side of the oil collecting box 4 close to the transformer body 1 and one side of the oil collecting box 4 away from the transformer body 1.
[0041] Optionally, a plurality of oil leakage grooves 41 are arranged on the same side of the oil collecting box 4.
[0042] Optionally, the oil leakage groove 41 has different sizes; preferably, the size of the oil leakage groove 41 is 120*30mm or 240*30mm. In one oil collecting box 4, the oil leakage groove 41 with a size of 120*30mm and the oil leakage groove 41 with a size of 240*30mm can be provided at the same time. In order to facilitate actual production, the oil leakage groove 41 with a uniform size can also be used.
[0043] Referring to Figure 5 , 6 and Figure 8 , in an embodiment of the present application, the oil collecting box 4 is provided with a drainage block 44 away from one side of the finned radiator 2, the drainage block 44 is provided corresponding to the oil leakage groove 41, the drainage block 44 is provided with a drainage opening 441, the drainage opening 441 is in communication with the oil leakage groove 41, and the shape of the drainage block 44 matches the shape of the oil leakage groove 41.
[0044] The function of the drainage block 44 is to guide the direction of the flow of insulating oil out of the oil collecting box 4, so that the insulating oil can flow out of the oil leakage groove 41 according to the predetermined path, and the insulating oil can be prevented from spreading to the bottom surface of the oil collecting box 4 during the process of flowing out of the oil leakage groove 41. If the insulating oil spreads on the bottom surface of the oil collecting box 4, not only the loss of insulating oil is caused, but also the bottom surface of the oil collecting box 4 is contaminated, which affects the overall appearance of the transformer and may also cause the maintenance cost to increase. The provision of the drainage opening 441 penetrating the drainage block 44 can ensure that the leaked insulating oil can flow out of the drainage opening 441, so that the insulating oil flows out of a specific area. The shape of the drainage block 44 matches the shape of the oil leakage groove 41, which can ensure that the drainage block 44 can tightly fit the oil leakage groove 41 to form an effective sealing and guiding structure.
[0045] Preferably, the opening of the drainage opening 441 and the opening of the oil leakage groove 41 are the same size.
[0046] Referring to Figure 5 and Figure 6 , in an embodiment of the present application, a boss 43 is provided at the middle position of the oil collecting box 4.
[0047] The provision of the boss 43 at the middle position of the oil collecting box 4 can effectively guide the flow of insulating oil, guide the collected insulating oil to flow to the oil leakage groove 41, and prevent the accumulation of oil at the middle position of the oil collecting box 4.
[0048] In addition, the design of the boss 43 can be optimized according to the specific size and shape of the oil collecting box 4 to ensure better insulating oil flow effect and collection efficiency. Preferably, the boss 43 is a pyramid; preferably, the size of the boss 43 is 450*270*15mm.
[0049] Referring to Figures 2 to 4 , in an embodiment of the present application, a plurality of oil collecting boxes 4 are provided on the same side of the transformer body 1.
[0050] When the sheet type radiator 2 leaks oil, the multiple oil collecting boxes 4 can simultaneously and rapidly collect the leaked insulating oil, improving the collection efficiency.
[0051] Alternatively, the oil collecting box 4 can be arranged below each group of sheet type radiators 2, but in combination with the actual demand and the overall aesthetic appearance of the transformer structure design, the oil collecting box 4 can be arranged on only two sides of the transformer body 1, and one oil collecting box 4 can be arranged below two groups of sheet type radiators 2.
[0052] Referring to Figure 3 In an embodiment of the present application, a first gap 45 is arranged between the adjacent two oil collecting boxes 4.
[0053] The first gap 45 between the adjacent two oil collecting boxes 4 is arranged to prevent the adjacent two oil collecting boxes 4 from interfering with each other due to vibration during the operation of the transformer, to avoid mechanical wear between the adjacent oil collecting boxes 4, and to further affect the oil collecting effect.
[0054] Preferably, the distance of the first gap 45 is 20mm-60mm.
[0055] Referring to Figure 7 In an embodiment of the present application, the connecting piece 3 includes a bolt 31, a first washer 32, a first gasket 33, a sleeve 34, a second gasket 35 and a nut 36; the nut 36 is fixedly connected to the bottom of the sheet type radiator 2, and the bolt 31 is inserted into the nut 36 after sequentially passing through the first washer 32, the first gasket 33, the mounting hole 42, the sleeve 34 and the second gasket 35.
[0056] The oil collecting box 4 and the sheet type radiator 2 are detachably connected by a threaded connection mode, wherein the connecting piece 3 is threadedly engaged, providing more reliable fastening force, ensuring stable connection between the oil collecting box 4 and the sheet type radiator 2, and further facilitating installation and disassembly. When used for a period of time, the oil collecting box 4 can be conveniently disassembled for cleaning and maintenance. The first washer 32 can protect the bolt 31 and the first gasket 33, avoiding wear between the bolt 31 and the first gasket 33; the first gasket 33 and the second gasket 35 can buffer vibration and impact force, enhancing the connection fastening property of the bolt 31, preventing the bolt 31 from loosening and falling off, and further avoiding mechanical wear between the bolt 31, the sleeve 34 and the nut 36; in order to prevent the insulating oil from corroding the bolt 31, the sleeve 34 is arranged on the outer periphery of the bolt 31, the sleeve 34 can isolate the insulating oil, avoiding direct contact between the bolt 31 and the insulating oil, protecting the bolt 31, and further prolonging the service life of the connecting piece 3.
[0057] Preferably, the bolt 31 is a hexagonal bolt, and its model is M10*70; preferably, the material of the bolt 31 is 316 stainless steel; preferably, the model of the nut 36 is M10.
[0058] See Figure 5 and Figure 6 In one embodiment of the present application, there are multiple mounting holes 42 , and the multiple mounting holes 42 are symmetrically arranged on the oil collecting box 4 .
[0059] The mounting holes 42 allow the connector 3 to pass through the mounting holes 42 to connect the oil collecting box 4 to the fin-type radiator 2. The symmetrical arrangement of the multiple mounting holes 42 on the oil collecting box 4 ensures a stable connection between the connector 3 and the fin-type radiator 2 after passing through the mounting holes 42. The oil collecting box 4 is evenly loaded during installation, ensuring stable operation even when the transformer is in operation or subjected to external impact.
[0060] Optionally, the mounting hole 42 is arranged close to the center of the oil collecting box 4. Such an arrangement can also ensure that the oil collecting box 4 is subjected to more balanced force during installation, and can also further enhance the stability of the oil collecting box 4.
[0061] Preferably, the number of mounting holes 42 is four.
[0062] See Figures 1 to 4 In one embodiment of the present application, the transformer with an oil collecting box further includes at least one reinforcing plate 5, which is arranged on the side wall of the transformer body 1 and extends along the height direction of the transformer body 1. A second gap 6 is provided between the oil collecting box 4 and the reinforcing plate 5.
[0063] To enhance the overall structural strength of the transformer, reinforcement plates 5 are installed on the side walls of the transformer body 1. This helps the transformer maintain its shape when subjected to heavy loads and external impacts, reducing the risk of deformation and damage. A second gap 6 is provided between the oil collecting box 4 and the reinforcement plates 5 to prevent interference between the oil collecting box 4 and the reinforcement plates 5 due to vibration, thermal expansion, and other factors during transformer operation, thereby avoiding physical damage to the equipment.
[0064] Preferably, the second gap 6 is greater than or equal to 10 mm.
[0065] Optionally, a reinforcing plate 5 is provided between the gaps between two adjacent sets of fin-type heat sinks 2 on the same side of the transformer body 1. This reinforcing plate 5 has a through-hole. When a leak occurs in a radiator tube, a welding gun can be inserted into the through-hole to repair the radiator tube. Optionally, there are two through-holes, one near the top end of the fin-type heat sink 2 and the other near the bottom end.
[0066] See Figure 9In an embodiment of the present application, the transformer body 1 is provided with an oil collecting pool 7 below.
[0067] The oil collecting pool 7 is arranged below the transformer body 1 to further collect the insulating oil in the oil collecting box 4, and the collected insulating oil is deposited in the oil collecting pool 7, which not only protects the transformer and prolongs the service life of the equipment, but also avoids environmental pollution. Alternatively, the oil collecting pool 7 is installed on site according to the site conditions, so that the user can further collect the leaked transformer insulating oil on site, further protect the transformer and prolong the service life of the transformer. Alternatively, a support frame is fixed below the transformer to place the transformer in the oil collecting pool 7.
[0068] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for the purpose of explaining the principles of the present application, and cannot be interpreted in any way as a limitation on the scope of protection of the present application. Based on the explanations herein, those skilled in the art can conceive other specific embodiments of the present application without creative labor, and these embodiments will fall within the scope of protection of the present application.
Claims
1. A transformer with an oil collecting box, characterized in that: The invention comprises a transformer body (1), a plate-type radiator (2), a connecting piece (3) and an oil collecting box (4), wherein the plate-type radiator (2) is arranged on the side wall of the transformer body (1); the oil collecting box (4) is arranged below the plate-type radiator (2); the oil collecting box (4) is a box body with an open top, and an oil leakage groove (41) and a mounting hole (42) are provided through the oil collecting box (4); The connecting member (3) passes through the mounting hole (42) and is connected to the plate-type radiator (2) so as to mount the oil collecting box (4) below the plate-type radiator (2).
2. The transformer with an oil collecting box according to claim 1, characterized in that: The oil leakage groove (41) is arranged on a side of the oil collecting box (4) close to the transformer body (1); Alternatively, the oil leakage groove (41) is provided on a side of the oil collecting box (4) away from the transformer body (1); Alternatively, the oil leakage groove (41) is provided on a side of the oil collecting box (4) close to the transformer body (1) and a side of the oil collecting box (4) away from the transformer body (1).
3. The transformer with an oil collecting box according to claim 2, characterized in that: A drainage block (44) is provided on a side of the oil collecting box (4) away from the plate-type radiator (2), the drainage block (44) is arranged corresponding to the oil leakage groove (41), the drainage block (44) is provided with a drainage port (441) running through it, the drainage port (441) is communicated with the oil leakage groove (41), and the shape of the drainage block (44) matches the shape of the oil leakage groove (41).
4. The transformer with an oil collecting box according to claim 1, characterized in that: A boss (43) is provided in the middle of the oil collecting box (4).
5. The transformer with an oil collecting box according to claim 4, characterized in that: A plurality of oil collecting boxes (4) are provided on the same side of the transformer body (1).
6. The transformer with an oil collecting box according to claim 5, characterized in that: A first gap (45) is provided between two adjacent oil collecting boxes (4).
7. The transformer with an oil collecting box according to claim 1, characterized in that: The connecting member (3) comprises a bolt (31), a first washer (32), a first gasket (33), a sleeve (34), a second gasket (35) and a nut (36); The nut (36) is fixedly connected to the bottom of the plate-type radiator (2), and the bolt (31) passes through the first washer (32), the first gasket (33), the mounting hole (42), the sleeve (34), and the second gasket (35) in sequence and is then inserted into the nut (36).
8. The transformer with an oil collecting box according to claim 7, characterized in that: There are a plurality of mounting holes (42), and the plurality of mounting holes (42) are symmetrically arranged on the oil collecting box (4).
9. The transformer with an oil collecting box according to claim 1, characterized in that: The transformer with the oil collecting box further comprises at least one reinforcing plate (5), the reinforcing plate (5) being arranged on the side wall of the transformer body (1) and extending in the height direction of the transformer body (1), and a second gap (6) being provided between the oil collecting box (4) and the reinforcing plate (5).
10. The transformer with an oil collecting box according to claim 1, characterized in that: An oil collecting tank (7) is provided below the transformer body (1).