CN213546086U

CN213546086U - Oil tank for oil-immersed power transformer

Info

Publication number: CN213546086U
Application number: CN202022924876.9U
Authority: CN
Inventors: 南安建; 林浙海; 何元肖; 南瑞璋
Original assignee: Shendian Electric Co ltd
Current assignee: Shendian Electric Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-06-25
Anticipated expiration: 2030-12-09

Abstract

The utility model discloses an oil tank for oil-immersed power transformer, including the case shell, the case shell is the hollow form of cuboid, the last fixed surface of case shell installs the case lid, the both ends at case lid upper surface middle part all run through and have seted up the mounting groove, the case lid passes through the mounting groove and installs towards inboard punching press case, the mounting hole has been seted up at the middle part of punching press case upper surface, one side that the punching press case is close to the mounting hole is run through and has been seted up the inlet port, the outer fringe department fixed mounting that the upper surface of punching press case passes through the mounting hole has the spring, the upper end fixedly connected with of spring is towards the movable rod of below, the movable rod extends to the inside one end fixedly connected with piston plate of punching press case. The utility model discloses at the in-process that uses, can realize the inconvenient purpose of changing transformer oil of oil-immersed transformer in remote area, and whole operation process only need the air can, it is with low costs to change oil, and easy operation is convenient, is favorable to using.

Description

Oil tank for oil-immersed power transformer

Technical Field

The utility model relates to an oil-immersed power transformer technical field especially relates to an oil tank for oil-immersed power transformer.

Background

Oil-immersed transformer, also known as oil-immersed test transformer, oil-immersed transformer mainly comprises iron core, the winding, the oil tank, the conservator, insulation support, tapping switch and gas relay, wherein transformer oil in the oil-immersed transformer need do the characteristic test at a period of time, need change transformer oil when the test result unsatisfied the requirement, traditional transformer oil changes the in-process, adopt nitrogen gas cooperation force (forcing) pump to carry out pressurization in the oil tank, reach and get rid of the purpose of taking oil, but nitrogen gas pressurization is with high costs, the transportation is preserved the difficulty, oil-immersed transformer to remote areas uses inconveniently, and then is unfavorable for convenient change of transformer oil. Therefore, in order to solve the above problems, we propose an oil tank for an oil-immersed power transformer.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an oil tank for an oil-immersed power transformer.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an oil tank for an oil-immersed power transformer comprises a tank shell, wherein the tank shell is hollow and is in a cuboid shape, a tank cover is fixedly mounted on the upper surface of the tank shell, mounting grooves are formed in the two ends of the middle part of the upper surface of the tank cover in a penetrating manner, a stamping box facing inwards is mounted on the tank cover through the mounting grooves, a mounting hole is formed in the middle part of the upper surface of the stamping box, an air inlet hole is formed in one side, close to the mounting hole, of the stamping box, a spring is fixedly mounted on the upper surface of the stamping box through the outer edge of the mounting hole, a movable rod facing downwards is fixedly connected to the upper end of the spring, a piston plate is fixedly connected to one end, extending into the stamping box, of the movable rod, a mounting frame is fixedly mounted on one side of the middle part of the upper surface of the tank cover, a motor is mounted on the tank cover through the mounting frame, install rain-proof lid jointly between the upper end of bracing piece, the middle part fixed mounting of rain-proof lid lower surface has the bearing ring that is the interval and sets up, it has the dwang to insert jointly between the bearing ring.

Preferably, the rotating rod is fixedly provided with a driven gear corresponding to the outer annular surface of the main gear, the main gear is meshed with the driven gear, cams are fixedly arranged at both ends of the rotating rod, and one end of the outer annular surface of each cam is in contact with the upper surface of the movable rod.

Preferably, the outer annular surface of the piston plate is in close contact with the inner annular surface of the punching box, and the two ends of the upper surface of the piston plate are respectively provided with a check valve in a penetrating manner.

Preferably, the outer surface of the case shell is fixedly provided with corrugated sheets, and the lower surface of the case shell is fixedly provided with mounting rods arranged at intervals.

Preferably, one side of case shell internal surface is run through and is seted up the oil drain hole that is the interval and sets up, the outer fixed surface that the case shell corresponds the oil drain hole installs the oil extraction pipe.

Preferably, the upper end of the outer annular surface of the box shell is fixedly provided with hanging rings arranged at intervals.

The utility model provides a pair of oil tank for oil-immersed power transformer, beneficial effect lies in: when the oil-immersed transformer oil displacement device is used, when transformer oil in the oil-immersed transformer passes a performance test and the test result is unqualified, the transformer oil needs to be replaced, firstly, an oil discharge hole is opened, a motor is started, a cam rotates under the support of a bearing ring under the linkage action of the motor, a main gear, a driven gear and a rotating rod and drives a movable rod to move up and down in a stamping box, and therefore the movable rod drives a piston plate to move up and down in the stamping box; when the movable rod rebound, the air gets into the punching press incasement from the inlet port, when the movable rod rebound, the air gets into the inside of case shell via the check valve this moment, the repeated back that reciprocates, under the effect of atmospheric pressure, the oil drain hole is via the oil drain hole to the expense in the case shell, the oil extraction pipe discharges, thereby accomplish the discharge of the expense oil in the oil-immersed transformer oil tank, consequently, whole oil tank is at the in-process that uses, can realize the inconvenient purpose of changing transformer oil of oil-immersed transformer in remote area, and whole operation process only need the air can, it is with low costs to change oil, easy operation is convenient, be favorable to using.

Drawings

Fig. 1 is a schematic structural diagram of an oil tank for an oil-immersed power transformer according to the present invention;

fig. 2 is a schematic structural diagram of a stamping mechanism of an oil tank for an oil-immersed power transformer according to the present invention;

fig. 3 is a bottom view of a tank cover of an oil tank for an oil-immersed power transformer according to the present invention;

fig. 4 is the utility model provides a structural schematic of the case shell of oil tank for oil-immersed power transformer.

In the figure: 1. mounting a rod; 2. a corrugated sheet; 3. a cabinet housing; 4. a hoisting ring; 5. a box cover; 6. punching a box; 7. a support bar; 8. a cam; 9. a rain cover; 10. an oil discharge pipe; 11. a one-way valve; 12. a piston plate; 13. a motor; 14. a driven gear; 15. a main gear; 16. rotating the rod; 17. a movable rod; 18. a spring; 19. an air inlet; 20. an oil drain hole; 21. and (5) bearing a ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, an oil tank for oil-immersed power transformer, includes case shell 3, and case shell 3 is the hollow form of cuboid, and the last fixed surface of case shell 3 installs case lid 5, and the both ends in the middle part of the upper surface of case lid 5 all run through and have seted up the mounting groove, and inboard punching press case 6 of orientation is installed through the mounting groove to case lid 5.

The mounting hole has been seted up at the middle part of punching press case 6 upper surface, and one side that punching press case 6 is close to the mounting hole is run through and has been seted up inlet port 19, and the outer fringe department fixed mounting that the upper surface of punching press case 6 passes through the mounting hole has spring 18, and the upper end fixedly connected with of spring 18 is towards the movable rod 17 of below, and movable rod 17 extends to the inside one end fixedly connected with piston plate 12 of punching press case 6.

One side fixed mounting at 5 upper surface middle parts of case lid has the mounting bracket, and motor 13 is installed through the mounting bracket to case lid 5, and motor 13's output fixedly connected with master gear 15, the equal fixed mounting in four corners department of 5 upper surfaces of case lid has bracing piece 7 towards the top, installs rain-proof lid 9 between the upper end of bracing piece 7 jointly, avoids whole mechanism of changing oil to be drenched the damage in sleet weather, is favorable to promoting life.

The middle part fixed mounting of rain-proof lid 9 lower surface has bearing ring 21 that is the interval setting, inserts jointly between the bearing ring 21 and is equipped with dwang 16, and the outer circumferencial fixed mounting that dwang 16 corresponds master gear 15 has driven gear 14, and the setting of bearing ring 21 makes dwang 16 obtain stable support.

The main gear 15 is meshed with the driven gear 14, the cams 8 are fixedly arranged at two ends of the rotating rod 16, one end of the outer annular surface of each cam 8 is in contact with the upper surface of the movable rod 17, and the outer annular surface of the piston plate 12 is in close contact with the inner annular surface of the stamping box 6.

The both ends of piston plate 12 upper surface all run through and install check valve 11, and the fixed surface of case shell 3 installs corrugated sheet 2, and the fixed surface of case shell 3 installs the installation pole 1 that is the interval and sets up, and the setting of installation pole 1 makes whole transformer easy dismounting.

One side of 3 internal surfaces of case shell runs through to be offered the oil drain hole 20 that is the interval and sets up, and the outer fixed surface that 3 of case shell corresponds oil drain hole 20 installs oil extraction pipe 10, and the upper end fixed mounting of 3 outer anchor rings of case shell has the rings 4 that are the interval and set up.

The use principle and the advantages are as follows: in the using process of the utility model, when the transformer oil in the oil-immersed transformer is subjected to a performance test and the test result is unqualified, the transformer oil needs to be replaced, firstly, the oil discharge hole 20 is opened, the motor 13 is started, the cam 8 rotates under the support of the bearing ring 21 under the linkage action of the motor 13, the main gear 15, the driven gear 14 and the rotating rod 16, and the movable rod 17 is driven to move up and down in the stamping box 6, so that the movable rod 17 drives the piston plate 12 to move up and down in the stamping box 6; when the movable rod 17 upwards moves, the air gets into in the punching press case 6 from the inlet port 19, when the movable rod 17 moves down, the air gets into the inside of case shell 3 via check valve 11 this moment, the repeated back that reciprocates, under the effect of atmospheric pressure, the oil drain hole 20 is passed through to the oil drain pipe 10 to the oil of taking of in the case shell 3, thereby accomplish the discharge of taking of oil in the oil-immersed transformer oil tank, consequently, whole oil tank is at the in-process that uses, can realize the inconvenient purpose of changing transformer oil of oil-immersed transformer in remote area, and whole operation process only need the air can, it is with low costs to change oil, and easy operation is convenient, and the use is favorable to.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The oil tank for the oil-immersed power transformer comprises a tank shell (3) and is characterized in that the tank shell (3) is in a cuboid hollow shape, a tank cover (5) is fixedly mounted on the upper surface of the tank shell (3), mounting grooves are formed in the two ends of the middle of the upper surface of the tank cover (5) in a penetrating mode, a stamping box (6) facing the inner side is mounted on the tank cover (5) through the mounting grooves, a mounting hole is formed in the middle of the upper surface of the stamping box (6), an air inlet hole (19) is formed in one side, close to the mounting hole, of the stamping box (6) in a penetrating mode, a spring (18) is fixedly mounted on the upper surface of the stamping box (6) through the outer edge of the mounting hole, a movable rod (17) facing the lower side is fixedly connected to the upper end of the spring (18), and a piston plate (12) is fixedly connected to one end, extending, case lid (5) upper surface middle part's one side fixed mounting has the mounting bracket, motor (13) are installed through the mounting bracket in case lid (5), the output fixedly connected with master gear (15) of motor (13), the equal fixed mounting in four corners department of case lid (5) upper surface has bracing piece (7) towards the top, install rain-proof lid (9) jointly between the upper end of bracing piece (7), the middle part fixed mounting of rain-proof lid (9) lower surface has bearing ring (21) that are the interval and set up, insert jointly between bearing ring (21) and be equipped with dwang (16).

2. The oil tank for the oil-immersed power transformer according to claim 1, wherein the rotating rod (16) is fixedly provided with a driven gear (14) corresponding to the outer annular surface of the main gear (15), the main gear (15) is meshed with the driven gear (14), both ends of the rotating rod (16) are fixedly provided with cams (8), and one end of the outer annular surface of each cam (8) is in contact with the upper surface of the movable rod (17).

3. The oil tank for the oil-filled power transformer according to claim 1, wherein the outer annular surface of the piston plate (12) is in close contact with the inner annular surface of the stamping tank (6), and the two ends of the upper surface of the piston plate (12) are provided with one-way valves (11) in a penetrating manner.

4. The oil tank for the oil-filled power transformer according to claim 1, wherein the corrugated sheet (2) is fixedly mounted on the outer surface of the tank shell (3), and the mounting rods (1) are fixedly mounted on the lower surface of the tank shell (3) at intervals.

5. The oil tank for the oil-immersed power transformer according to claim 1, wherein oil drain holes (20) are formed in one side of the inner surface of the tank shell (3) at intervals, and an oil drain pipe (10) is fixedly mounted on the outer surface of the tank shell (3) corresponding to the oil drain holes (20).

6. The oil tank for the oil-filled power transformer according to claim 1, wherein the upper end of the outer annular surface of the tank shell (3) is fixedly provided with hanging rings (4) which are arranged at intervals.