Oil cooling device for oil-immersed transformer

Abstract

The utility model discloses an oil cooling device for an oil-immersed transformer, which relates to the technical field of transformer oil cooling, and comprises a mounting rack, an oil-immersed transformer body, a circulating box, a first fixing plate, a first circulating mechanism fixedly arranged on the first fixing plate, and a second fixing plate, a second circulating mechanism fixedly arranged on the second fixing plate, the supporting mechanism, the filtering plate and the lifting mechanism are arranged on the circulating box, and the first L-shaped plate, the cleaning mechanism, the isolation plate and the switching mechanism are arranged on the lifting mechanism; through cooperation of a supporting mechanism, a filtering plate, a lifting mechanism, a first L-shaped plate and a cleaning mechanism, the filtering plate is fixed in a limiting groove, the filtering plate is not fixed any more, and when the filtering effect becomes weak, a worker can conveniently replace and clean the filtering plate in time; and the electric telescopic rod is arranged outside the circulating box, so that the electric telescopic rod is prevented from being damaged in oil liquid with higher temperature, and the service life of the oil cooling device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer oil cooling technical field especially relates to a oil cooling device for oil immersed transformer. BACKGROUND

[0002] The oil immersed transformer is a kind of electrical equipment widely used in power transmission and distribution system, its main feature is to use transformer oil as cooling medium and insulating material. This type of transformer is widely used in various voltage level power transmission and distribution network due to its good cooling performance and electrical insulation performance;Oil cooling device is a very important component in oil immersed transformer, its main function is to dissipate heat through circulating transformer oil to ensure that the transformer operates within the normal operating temperature range, prevent damage due to overheating.

[0003] In the authorized announcement No. CN218769006U Chinese patent, a kind of oil cooling device for oil immersed transformer, including oil immersed transformer body and limit frame, the bottom of the oil immersed transformer body is symmetrically provided with mounting bracket, and the rear side of oil immersed transformer body is provided with heat conduction box, simultaneously heat conduction box is fixedly connected with the rear wall of transformer body by fixed frame, the top of the side wall of heat conduction box is connected with the one end of first circulating pump by first delivery pipe network, and the other end of first circulating pump is connected with the oil tank side wall bottom of oil immersed transformer body by first circulating pipeline. The oil cooling device for oil immersed transformer, be provided with first circulating pump and second circulating pump, first circulating pump can extract high-temperature oil liquid in the oil tank of oil immersed transformer body into heat conduction box, while second circulating pump can discharge oil liquid with lower temperature into the oil tank of oil immersed transformer body, to prevent the oil tank of oil immersed transformer body from malfunction due to high temperature of oil liquid in oil tank.

[0004] But the precipitate accumulated on filter plate will be accumulated more and more with the extension of time, can cause the filtration effect of filter plate to be weak, thus needs timely cleaning or replacement, and electric telescopic rod is in oil liquid with higher temperature, and works in oil liquid, can cause the damage of electric telescopic rod, influence the service life of oil cooling device, thus urgently needs improvement. UTILITY MODEL CONTENT

[0005] In view of the deficiencies in the prior art, the utility model aims at providing an oil cooling device for oil immersed transformer, to solve the above technical problems.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] An oil cooling device for oil immersed transformer, comprising a mounting bracket and an oil immersed transformer body, further comprising:

[0008] A circulating tank is fixedly arranged on the mounting rack;

[0009] A first fixing plate is arranged on the oil-immersed transformer body and fixedly connected with the oil-immersed transformer body;

[0010] A first circulating mechanism is fixedly arranged on the first fixing plate, fixedly connected with the oil-immersed transformer body, and fixedly connected with the circulating tank;

[0011] A second fixing plate is arranged on the mounting rack and fixedly connected with the mounting rack;

[0012] A second circulating mechanism is fixedly arranged on the second fixing plate, fixedly connected with the oil-immersed transformer body and the circulating tank;

[0013] Two supporting mechanisms are arranged on the circulating tank;

[0014] A filter plate is arranged on the supporting mechanism and slidably connected with the supporting mechanism;

[0015] Two lifting mechanisms are arranged on the circulating tank and fixedly connected with the circulating tank;

[0016] Four first L-shaped plates are fixedly arranged on the lifting mechanism;

[0017] A cleaning mechanism is fixedly arranged on the lifting mechanism and slidably connected with the circulating tank;

[0018] An isolation plate is arranged on the circulating tank and fixedly connected with the circulating tank;

[0019] A switch mechanism is arranged on the lifting mechanism, fixedly connected with the lifting mechanism, and slidably connected with the isolation plate.

[0020] Preferably, the first circulating mechanism comprises:

[0021] A first circulating pump is fixedly arranged on the first fixing plate;

[0022] A first output pipe is arranged on the oil-immersed transformer body, one end of the first output pipe close to the oil-immersed transformer body is fixedly connected with the oil-immersed transformer body, and the other end of the first output pipe away from the oil-immersed transformer body is fixedly connected with the first circulating pump;

[0023] A first input pipe is fixedly arranged on the first circulating pump, one end of the first input pipe close to the oil-immersed transformer body is fixedly connected with the first circulating pump, and the other end of the first input pipe away from the oil-immersed transformer body is fixedly connected with the circulating tank.

[0024] Preferably, the second circulating mechanism comprises:

[0025] A second circulating pump fixedly arranged on the second fixed plate;

[0026] A second output pipe arranged on the circulating tank, one end of the second output pipe close to the circulating tank being fixedly connected with the circulating tank, and one end of the first output pipe away from the circulating tank being fixedly connected with the second circulating pump;

[0027] A second input pipe fixedly arranged on the second circulating pump, one end of the second input pipe close to the oil-immersed transformer body being fixedly connected with the oil-immersed transformer body, and one end of the second input pipe away from the oil-immersed transformer body being fixedly connected with the second circulating pump.

[0028] Preferably, the supporting mechanism comprises:

[0029] Two supporting plates symmetrically arranged on the circulating tank and fixedly connected with the circulating tank;

[0030] Two limiting grooves arranged on the supporting plates and used for arranging the filter plate.

[0031] Preferably, the lifting mechanism comprises:

[0032] Two electric telescopic rods arranged on the circulating tank and fixedly connected with the circulating tank;

[0033] Two lifting rods fixedly arranged on the electric telescopic rods and fixedly connected with the first L-shaped plate.

[0034] Preferably, the cleaning mechanism comprises:

[0035] Two second L-shaped plates fixedly arranged on the lifting rods;

[0036] A Huizi plate arranged on the second L-shaped plate, fixedly connected with the second L-shaped plate, and slidingly connected with the circulating tank.

[0037] Preferably, the switch mechanism comprises:

[0038] A connecting plate fixedly arranged on the lifting rods;

[0039] A plurality of movable valves arranged on the connecting plate, fixedly connected with the connecting plate, and slidingly connected with the isolation plate.

[0040] Therefore, the oil cooling device for oil-immersed transformer has the advantages that:

[0041] Through cooperation between the supporting mechanism, the filter plate, the lifting mechanism, the first L-shaped plate and the cleaning mechanism, the filter plate is fixed in the limiting groove, and the filter plate is no longer fixed, so that the filter plate can be cleaned and replaced in time when the filtering effect is weakened; the electric telescopic rod is arranged outside the circulating tank, so that the electric telescopic rod is prevented from being damaged in oil with high temperature, and the service life of the oil cooling device is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the following described drawings are only some embodiments of the utility model, for the ordinary skilled in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0043] Figure 1 A perspective structural schematic diagram of the oil cooling device for oil-immersed transformer is shown.

[0044] Figure 2 A front view structural schematic diagram of the oil cooling device for oil-immersed transformer is shown.

[0045] Figure 3 A partial perspective structural schematic diagram of the oil cooling device for oil-immersed transformer is shown.

[0046] Figure 4 A front view of Figure 3 is shown.

[0047] Figure 5 A sectional view of A-A in Figure 4 is shown.

[0048] Figure 6 A perspective structural schematic diagram of the filter plate, the first L-shaped plate, the isolation plate, the supporting mechanism, the lifting mechanism, the cleaning mechanism and the switching mechanism is shown.

[0049] LEGEND:

[0050] 1, mounting frame; 2, oil-immersed transformer body; 3, circulating tank; 4, first fixed plate; 5, second fixed plate; 6, filter plate; 7, first L-shaped plate; 8, isolation plate; 9, first circulating pump; 10, first output pipe; 11, first input pipe; 12, second circulating pump; 13, second output pipe; 14, second input pipe; 15, supporting plate; 16, limiting groove; 17, electric telescopic rod; 18, lifting rod; 19, second L-shaped plate; 20, hui-zi plate; 21, connecting plate; 22, moving valve. DETAILED DESCRIPTION

[0051] 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. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0052] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0053] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there can be a middle component. When a component is referred to as "disposed on" another component, it can be directly disposed on the other component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and the like used herein are for illustrative purposes only.

[0054] In addition, the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0055] Reference Figures 1 to 6 The oil cooling device for oil-immersed transformer embodiment of the present application is further described.

[0056] An oil cooling device for oil-immersed transformer, comprising a mounting frame 1 and an oil-immersed transformer body 2, further comprising:

[0057] A circulating tank 3 is fixedly arranged on the mounting frame 1.

[0058] The first fixed plate 4 is arranged on the oil-immersed transformer body 2 and fixedly connected with the oil-immersed transformer body 2, and serves as a support for the first circulating pump 9, thereby supporting the first circulating mechanism.

[0059] With reference to Figures 1 to 3 As a preferred embodiment, the first circulating mechanism is fixedly arranged on the first fixed plate 4 and fixedly connected with the oil-immersed transformer body 2 and the circulating tank 3, and serves to transport the oil with a higher temperature from the oil-immersed transformer body 2 into the circulating tank 3. The first circulating mechanism comprises:

[0060] The first circulating pump 9 is fixedly arranged on the first fixed plate 4, and serves to output the oil with a higher temperature from the oil-immersed transformer body 2 through the first output pipe 10 and transport the oil with a higher temperature into the circulating tank 3.

[0061] The first output pipe 10 is arranged on the oil-immersed transformer body 2, one end of the first output pipe 10 close to the oil-immersed transformer body 2 is fixedly connected with the oil-immersed transformer body 2, and the other end of the first output pipe 10 away from the oil-immersed transformer body 2 is fixedly connected with the first circulating pump 9, and serves to transport the oil with a higher temperature.

[0062] The first input pipe 11 is fixedly arranged on the first circulating pump 9, one end of the first input pipe 11 close to the oil-immersed transformer body 2 is fixedly connected with the first circulating pump 9, and the other end of the first input pipe 11 away from the oil-immersed transformer body 2 is fixedly connected with the circulating tank 3, and serves to transport the oil with a higher temperature.

[0063] The second fixed plate 5 is arranged on the mounting frame 1 and fixedly connected with the mounting frame 1, and serves to support the second circulating pump 12, thereby supporting the second circulating mechanism.

[0064] With reference to Figures 1 to 3 As a preferred embodiment, the second circulating mechanism is fixedly arranged on the second fixed plate 5 and fixedly connected with the oil-immersed transformer body 2 and the circulating tank 3, and serves to transport the oil cooled in the circulating tank 3 into the oil-immersed transformer body 2. The second circulating mechanism comprises:

[0065] The second circulating pump 12 is fixedly arranged on the second fixed plate 5, and serves to output the oil cooled through the second output pipe 13 and transport the oil cooled into the oil-immersed transformer body 2.

[0066] Second output pipe 13, provided on the circulating tank 3, the second output pipe 13 is fixedly connected with the circulating tank 3 near one end of the circulating tank 3, and the first output pipe 10 is fixedly connected with the second circulating pump 12 away from the circulating tank 3; for transporting the cooled oil;

[0067] Second input pipe 14, fixedly provided on the second circulating pump 12, the second input pipe 14 is fixedly connected with the oil immersed transformer body 2 near one end of the oil immersed transformer body 2, and the second input pipe 14 is fixedly connected with the second circulating pump 12 away from the oil immersed transformer body 2; play a role in transporting the cooling oil to the oil immersed transformer body 2;

[0068] Reference Figures 4 to 6 As a preferred embodiment, the supporting mechanism is provided with two, two supporting mechanisms are fixedly provided on the circulating tank 3; the supporting mechanism comprises:

[0069] Supporting plate 15, provided with two, two supporting plates 15 are symmetrically arranged on the circulating tank 3 and fixedly connected with the circulating tank 3; for supporting the filter plate 6, and preventing higher temperature oil from not passing through the filter plate 6;

[0070] Limiting groove 16, provided with two, two limiting grooves 16 are arranged on the supporting plate 15, for placing the filter plate 6, and facilitating the replacement of the filter plate 6 by the staff.

[0071] Filter plate 6, arranged on the supporting mechanism and slidably connected with the supporting mechanism; the filter plate 6 enters the high temperature oil in the circulating tank 3 for filtering;

[0072] Reference Figure 5 And Figure 6 As a preferred embodiment, the lifting mechanism is provided with two, two lifting mechanisms are arranged on the circulating tank 3 and fixedly connected with the circulating tank 3; the lifting mechanism comprises:

[0073] Electric telescopic rod 17, provided with two, two electric telescopic rods 17 are arranged on the circulating tank 3 and fixedly connected with the circulating tank 3;

[0074] Lifting rod 18, provided with two, two lifting rods 18 are fixedly arranged on the electric telescopic rod 17 and fixedly connected with the first L-shaped plate 7.

[0075] When working, start the electric telescopic rod 17, the electric telescopic rod 17 releases kinetic energy to drive the lifting rod 18 to rise and fall, the lifting rod 18 is used for transmitting kinetic energy to drive the first L-shaped plate 7, the second L-shaped plate 19 and the connecting plate 21 to rise and fall, so as to drive the cleaning mechanism and the switching mechanism to rise and fall;

[0076] The first L-shaped plate 7 is provided with four first L-shaped plates 7 fixedly arranged on the lifting mechanism; and is used for further fixing the position of the filter plate 6.

[0077] With reference to Figure 5 and Figure 6 As a preferred embodiment, the cleaning mechanism is fixedly arranged on the lifting mechanism and is in sliding connection with the circulating tank 3; and the cleaning mechanism comprises:

[0078] The second L-shaped plate 19 is provided with two second L-shaped plates 19 fixedly arranged on the lifting rod 18;

[0079] The back-shaped plate 20 is arranged on the second L-shaped plate 19 and is in fixed connection with the second L-shaped plate 19 and in sliding connection with the circulating tank 3.

[0080] In operation, the lifting rod 18 drives the second L-shaped plate 19 to ascend and descend, the second L-shaped plate 19 drives the back-shaped plate 20 to ascend and descend, the back-shaped plate 20 is in frictional action with the inner wall of the circulating tank 3, thereby scraping the residual oil on the inner wall of the circulating tank 3, promoting the circulation of the oil and preventing the accumulation of the oil on the inner wall of the circulating tank 3;

[0081] The isolation plate 8 is arranged on the circulating tank 3 and is in fixed connection with the circulating tank 3; and is used for isolating the oil at a higher temperature and the cooled oil.

[0082] With reference to Figure 5 and Figure 6 As a preferred embodiment, the switch mechanism is arranged on the lifting mechanism, is in fixed connection with the lifting mechanism and is in sliding connection with the isolation plate 8. The switch mechanism comprises:

[0083] The connecting plate 21 is fixedly arranged on the lifting rod 18;

[0084] The movable valve 22 is provided with a plurality of movable valves 22 arranged on the connecting plate 21, is in fixed connection with the connecting plate 21 and is in sliding connection with the isolation plate 8.

[0085] In operation, the lifting rod 18 drives the connecting plate 21 to ascend and descend, the connecting plate 21 drives the movable valve 22 to ascend and descend, thereby causing the cooled oil to flow to the bottom of the circulating tank 3, facilitating the action of the second circulating mechanism.

[0086] Working principle: through starting electric telescopic rod 17, electric telescopic rod 17 drives lifting rod 18 to rise, lifting rod 18 drives first L-shaped plate 7, second L-shaped plate 19 and connecting plate 21 to rise, first L-shaped plate 7 rises, first L-shaped plate 7 rises and will no longer fix filter plate 6, and staff can easily replace filter plate 6 for cleaning;Second L-shaped plate 19 drives back-shaped plate 20 to rise, back-shaped plate 20 will scrape the oil accumulated on the inner wall of circulating tank 3;Connecting plate 21 drives movable valve 22 to rise, and the oil after cooling can flow to the lower of isolation plate 8 through isolation plate 8, realizing cold and hot separation;Start first circulating pump 9, first circulating pump 9 will higher temperature oil in oil-immersed transformer body 2 enter circulating tank 3 through first output pipe 10 and first input pipe 11, and cool above isolation plate 8;When cooling is finished, start electric telescopic rod 17, electric telescopic rod 17 drives lifting rod 18 to rise, lifting rod 18 drives connecting plate 21 to rise, connecting plate 21 drives movable valve 22 to rise, so that the oil after cooling flows to the lower of isolation plate 8;Start second circulating pump 12, second circulating pump 12 will the oil after cooling in circulating tank 3 enter oil-immersed transformer body 2 through second output pipe 13 and second input pipe 14 to complete circulation.

[0087] The above description of the embodiments enables one skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An oil cooling device for an oil-immersed transformer, comprising a mounting bracket (1) and an oil-immersed transformer body (2), characterized in that, Also include: Circulating tank (3), fixedly arranged on the mounting rack (1); First fixed plate (4), arranged on the oil-immersed transformer body (2), fixedly connected with the oil-immersed transformer body (2); First circulating mechanism, fixedly arranged on the first fixed plate (4), fixedly connected with the oil-immersed transformer body (2) and the circulating tank (3); Second fixed plate (5), arranged on the mounting rack (1), fixedly connected with the mounting rack (1); Second circulating mechanism, fixedly arranged on the second fixed plate (5), fixedly connected with the oil-immersed transformer body (2) and the circulating tank (3); Supporting mechanism, provided with two, two supporting mechanisms fixedly arranged on the circulating tank (3); Filter plate (6), arranged on the supporting mechanism, slidingly connected with the supporting mechanism; Lifting mechanism, provided with two, two lifting mechanisms arranged on the circulating tank (3), fixedly connected with the circulating tank (3); First L-shaped plate (7), provided with four, four first L-shaped plates (7) fixedly arranged on the lifting mechanism; Cleaning mechanism, fixedly arranged on the lifting mechanism, slidingly connected with the circulating tank (3); Isolation plate (8), arranged on the circulating tank (3), fixedly connected with the circulating tank (3); Switching mechanism, arranged on the lifting mechanism, fixedly connected with the lifting mechanism, slidingly connected with the isolation plate (8).

2. An oil cooling device for an oil immersed transformer according to claim 1, characterized in that, The first circulating mechanism comprises: First circulating pump (9), fixedly arranged on the first fixed plate (4); First output pipe (10), arranged on the oil-immersed transformer body (2), one end of the first output pipe (10) close to the oil-immersed transformer body (2) is fixedly connected with the oil-immersed transformer body (2), the other end of the first output pipe (10) away from the oil-immersed transformer body (2) is fixedly connected with the first circulating pump (9); First input pipe (11), fixedly arranged on the first circulating pump (9), one end of the first input pipe (11) close to the oil-immersed transformer body (2) is fixedly connected with the first circulating pump (9), the other end of the first input pipe (11) away from the oil-immersed transformer body (2) is fixedly connected with the circulating tank (3).

3. An oil cooling device for an oil immersed transformer according to claim 2, characterized in that, The second circulating mechanism comprises: Second circulating pump (12), fixedly arranged on the second fixed plate (5); Second output pipe (13), arranged on the circulating tank (3), one end of the second output pipe (13) close to the circulating tank (3) is fixedly connected with the circulating tank (3), the other end of the first output pipe (10) away from the circulating tank (3) is fixedly connected with the second circulating pump (12); Second input pipe (14), fixedly arranged on the second circulating pump (12), one end of the second input pipe (14) close to the oil-immersed transformer body (2) is fixedly connected with the oil-immersed transformer body (2), the other end of the second input pipe (14) away from the oil-immersed transformer body (2) is fixedly connected with the second circulating pump (12).

4. An oil cooling device for an oil immersed transformer according to claim 3, characterized in that The support mechanism comprises: Two support plates (15) are symmetrically arranged on the circulating box (3) and fixedly connected with the circulating box (3); Two limiting grooves (16) are arranged on the support plate (15) and used for arranging the filter plate (6).

5. An oil cooling device for an oil immersed transformer according to claim 4, characterized in that, The lifting mechanism comprises: Two electric telescopic rods (17) are arranged on the circulating box (3) and fixedly connected with the circulating box (3); Two lifting rods (18) are fixedly arranged on the electric telescopic rod (17) and fixedly connected with the first L-shaped plate (7).

6. An oil cooling device for an oil immersed transformer according to claim 5, characterized in that The cleaning mechanism comprises: Two second L-shaped plates (19) are fixedly arranged on the lifting rod (18); A back-shaped plate (20) is arranged on the second L-shaped plate (19), fixedly connected with the second L-shaped plate (19) and slidably connected with the circulating box (3).

7. An oil cooling device for an oil immersed transformer according to claim 6, characterized in that The switching mechanism comprises: A connecting plate (21) is fixedly arranged on the lifting rod (18); A plurality of movable valves (22) are arranged on the connecting plate (21), fixedly connected with the connecting plate (21) and slidably connected with the isolation plate (8).

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