CN219105886U - Oil tank of oil immersed transformer - Google Patents
Oil tank of oil immersed transformer Download PDFInfo
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- CN219105886U CN219105886U CN202320080621.XU CN202320080621U CN219105886U CN 219105886 U CN219105886 U CN 219105886U CN 202320080621 U CN202320080621 U CN 202320080621U CN 219105886 U CN219105886 U CN 219105886U
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Abstract
The utility model relates to an oil immersed transformer oil tank, which comprises a tank body, wherein a groove-shaped transformer positioning base is fixedly arranged at the bottom in the tank body along the length direction of the tank body, the transformer positioning base is in a stepped groove shape and comprises a wide opening part positioned at the upper part and a narrow opening part positioned at the lower part, the width of the narrow opening part is the same as the width of a body foot pad of a transformer, and the height of the narrow opening part is not greater than the height of the body foot pad of the transformer. According to the utility model, due to the arrangement of the transformer positioning base, in the process of assembling the transformer into the oil tank, the body foot pad of the transformer can be quickly inserted into the narrow-mouth part without observing the positioning structure between the bottom of the body of the transformer and the bottom of the oil tank, so that the positioning of the transformer in the oil tank along the width direction of the oil tank is realized, the transformer is more convenient to mount and position in the tank, time and labor are saved, the positioning is stable, the positioning effect is good, and the assembly efficiency of the oil immersed transformer can be effectively improved.
Description
Technical Field
The utility model relates to an oil tank of an oil immersed transformer, and belongs to the technical field of transformers.
Background
The installation and positioning of the transformer of the traditional oil immersed transformer in the oil tank are generally carried out in the following two ways, namely, a foot pad positioning column is welded at the bottom of the oil tank, and in the process of assembling the transformer in the oil tank, the positioning of the transformer in the oil tank is realized through the matching of a positioning hole on a body foot pad of the transformer and a column hole between the foot pad positioning columns at the bottom of the oil tank; secondly, the positioning plate is welded at the bottom in the oil tank, and in the process of assembling the transformer in the oil tank, the positioning of the transformer in the oil tank is realized through the abutting fit between the body pad feet of the transformer and the positioning plates with different orientations at the bottom in the oil tank. When the transformer is assembled into the oil tank, the transformer can block the vision of an assembler, so that the assembler cannot observe the transformer positioning structure (the foot support positioning column or the positioning plate) at the bottom in the oil tank, and the assembly of the transformer in the oil tank is difficult, and time and labor are wasted. In addition, the second installation and positioning mode is adopted, so that the body of the transformer is easy to shift in the transportation process or short-circuit (burst short-circuit) experiment of the oil immersed transformer, and the positioning plate is easy to deform or fall off to cause the cracking of the oil tank.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides the oil immersed transformer oil tank, the transformer is convenient to install and position, time and labor are saved, and the positioning effect is good.
The technical scheme for achieving the aim of the utility model is as follows: the oil immersed transformer oil tank comprises a tank body, a groove-shaped transformer positioning base is fixedly arranged at the bottom in the tank body along the length direction (or the long axis direction) of the tank body, the transformer positioning base is in a stepped groove shape and comprises a wide opening part positioned at the upper part and a narrow opening part positioned at the lower part, the width of the narrow opening part is the same as the width of a transformer body foot pad of a transformer (an assembly gap is allowed to be reserved), and the height of the narrow opening part is not greater than the height of the transformer body foot pad of the transformer.
Preferably, the width of the step (or step surface) of the side wall of the transformer on the high-voltage side of the transformer positioning base is larger than the width of the step (or step surface) of the side wall of the transformer on the low-voltage side.
Preferably, the distance between the outer walls of the side walls on both sides of the wide portion is the same as the distance between the inner walls of the tank walls on both sides of the tank body in the width direction (or short axis direction) (allowing an assembly gap to be left).
Preferably, the length of the transformer positioning base is the same as the interval between the inner walls of the two end walls of the box body along the length direction (the assembly clearance is allowed).
Preferably, the transformer positioning base is in a through groove shape along the length direction.
Preferably, the transformer positioning base comprises a bottom plate and side plates located on two sides of the bottom plate (two sides along the width direction), the side plates are bent, each side plate comprises a first vertical plate, a transverse plate and a second vertical plate, the bottom ends (the bottom end edge) of the first vertical plates are connected with the outer ends (the outer end edge) of the transverse plates, the inner ends (the inner end edge) of the transverse plates are connected with the top ends (the top end edge) of the second vertical plates, the bottom ends (the bottom end edge) of the second vertical plates are connected with corresponding side ends (the end edge) of the bottom plate, the space between the two first vertical plates is the wide opening, and the space between the two second vertical plates is the narrow opening.
Correspondingly, the transverse plate is a step of the side wall of the transformer base.
Further, the width of the cross plate on the high voltage side of the transformer is larger than the width of the cross plate on the low voltage side of the transformer, e.g. the cross plate on the high voltage side of the transformer is 10cm, 15cm or 20cm wider than the cross plate on the low voltage side of the transformer.
Preferably, the first vertical plate, the transverse plate, the second vertical plate and the adjacent plates in the bottom plate are vertically connected, and the connection part is in arc transition.
Preferably, the transformer positioning base is of an integrally formed structure.
Preferably, the transformer positioning base is formed by stamping steel plates.
Preferably, the bottom plate is welded to the bottom wall of the case, and the first riser is welded to a side wall or a side wall frame of the corresponding side of the case.
Preferably, a positioning structure for positioning the transformer along the length direction of the box body is arranged on the inner wall of the bottom of the narrow opening.
Further, the positioning structure is a positioning plate (or a positioning block) extending from the side wall of the narrow opening part along the width direction transversely inwards, the number of the positioning plates is four, two positioning plates are respectively arranged on two sides of the narrow opening part along the width direction and symmetrically arranged (the positioning plates on two sides of the narrow opening part along the width direction are symmetrically arranged), a space is reserved between the two positioning plates on the same side, and the space is the same as the length of a body pad foot of the transformer (an assembly gap is allowed to be reserved).
The beneficial effects of the utility model are as follows:
(1) Due to the arrangement of the groove-shaped transformer positioning base, in the process of assembling the transformer into the oil tank, the body foot of the transformer can be quickly inserted into the transformer positioning base (the narrow mouth part of the transformer positioning base) without observing a positioning structure between the bottom of the body of the transformer and the bottom of the oil tank, so that the positioning of the transformer in the oil tank along the width direction of the oil tank is realized.
(2) Due to the arrangement of the groove-shaped transformer positioning base, the internal space at the bottom of the oil tank is reduced, namely the volume of the oil tank is reduced, the oil consumption in the oil tank of the oil immersed transformer is reduced, the material cost is reduced, and the bottom surface and the side surface of the transformer positioning base are respectively welded and fixed with the tank wall at the corresponding side of the oil tank, so that the mechanical strength of the oil tank is also increased;
(3) The step width of the side wall of the high-voltage side of the transformer positioning base is larger than that of the side wall of the low-voltage side of the transformer, so that the distance between the high-voltage side of the transformer and the corresponding side tank wall of the oil tank is larger than that between the low-voltage side of the transformer and the corresponding side tank wall of the oil tank after the transformer is assembled in the oil tank, the insulation distance between the high-voltage side of the transformer and the oil tank can be effectively increased, and the safety is improved;
(4) Due to the arrangement of the positioning plate, after the body pad foot of the transformer is inserted into the narrow opening part of the transformer positioning base, the positioning plate can be propped against the outer side of the corresponding side end part of the body pad foot of the transformer in the length direction of the transformer, so that the positioning of the transformer in the oil tank along the length direction of the transformer is realized, and the transformer is prevented from being damaged due to displacement of the transformer relative to the oil tank in the transportation process.
Drawings
Fig. 1 is a cross-sectional view in the width direction of the present utility model;
fig. 2 is a cross-sectional view in the width direction after assembling a transformer in the present utility model;
FIG. 3 is a schematic view of the structure of the transformer positioning base of the present utility model;
fig. 4 is a top view of the present utility model (without the top cover).
Detailed Description
Referring to fig. 1 and 2, the utility model discloses an oil immersed transformer tank, which comprises a tank body 1, wherein a groove-shaped transformer positioning base 2 is fixedly arranged at the bottom in the tank body along the length direction (or long axis direction) of the tank body, the transformer positioning base is in a through groove shape along the length direction, the length of the transformer positioning base is the same as the interval between the inner walls of the tank walls at the two ends in the length direction of the tank body (an assembly gap is allowed to be reserved), so that the two ends of the transformer positioning base in the length direction can be propped against the inner walls of the corresponding side tank walls of the tank body after the transformer positioning base is arranged in the tank body. The transformer positioning base is in a stepped groove shape (along the width direction), and comprises a wide opening part at the upper part and a narrow opening part at the lower part, wherein the width of the narrow opening part is the same as the width of the body foot pad of the transformer 3 (an assembly gap is allowed to be reserved), and the height of the narrow opening part is not greater than the height of the body foot pad of the transformer, preferably the same as the height of the body foot pad of the transformer. So set up, with the transformer assembly to the in-process in the oil tank, need not to observe the transformer body bottom with location structure between the oil tank bottom can be with the quick interpolation of transformer body pad foot in the transformer positioning base (refer to the narrow mouth portion of transformer positioning base), realize that the transformer is in follow in the oil tank the location of the width direction of oil tank, compare in prior art, can effectively avoid blocking the sight and being difficult to observe the transformer with the waste of the assembly time that location structure between the oil tank caused when the transformer is gone into the case for the transformer in the transformer assembly process goes into case installation location more convenient, labour saving and time saving, and location is stable, and location is effectual, can effectively improve the assembly efficiency of oil-immersed transformer. In addition, the setting of transformer positioning base has reduced the inner space of oil tank bottom has reduced promptly the volume of oil tank, reducible oil's in the oil tank of oil-immersed transformer quantity of usage reduces material cost.
The width of the step (or the step surface) of the side wall of the high-voltage side of the transformer positioning base is preferably larger than the width of the step (or the step surface) of the side wall of the low-voltage side of the transformer, and the arrangement is such that the distance between the high-voltage side of the transformer and the corresponding side tank wall of the oil tank is larger than the distance between the low-voltage side and the corresponding side tank wall of the oil tank after the transformer is assembled in the oil tank, so that the insulation distance between the high-voltage side of the transformer and the oil tank can be effectively increased, and the safety is improved.
The distance between the outer walls of the side walls at the two sides of the wide opening is the same as the distance between the inner walls of the side walls at the two sides of the box body along the width direction (or short axis direction), so that after the transformer positioning base is installed in the box body, the side walls at the two sides of the wide opening are respectively contacted with the corresponding side walls of the box body, and the transformer positioning base is convenient to connect and fix.
Referring to fig. 3, a preferred embodiment of the transformer positioning base is: the transformer positioning base comprises a bottom plate 21 and side plates located on two sides (refer to two sides along the width direction) of the bottom plate, the side plates are bent, each side plate comprises a first vertical plate 22, a transverse plate 23 and a second vertical plate 24, the bottom ends (refer to bottom end edges) of the first vertical plates are connected with the outer ends (refer to outer end edges along the width direction) of the transverse plates, the inner ends (refer to inner end edges along the width direction) of the transverse plates are connected with the top ends (refer to top end edges) of the second vertical plates, the bottom ends (refer to bottom end edges) of the second vertical plates are connected with corresponding side ends (refer to end edges) of the bottom plate, the space between the first vertical plates of the two side plates is (or corresponds to) the side walls of the two sides of the wide opening, the space between the second vertical plates of the two side plates is (or corresponds to) the narrow opening, the bottom ends (refer to the top end edges) of the second vertical plates are the side walls of the two side plates are the side walls of the transformer, and the base is formed by the side walls of the two side plates.
The first vertical plate, the transverse plate, the second vertical plate and the adjacent plates in the bottom plate are preferably connected vertically, or any two adjacent parts of the parts positioned on the same side are mutually vertical, and the connection part is in arc transition. The arc transition of the connection part between the transverse plate and the second vertical plate is beneficial to the insertion of the body foot pad of the transformer into the narrow opening part, and damage caused by collision between the body foot pad of the transformer and the edge angle of the connection part between the transverse plate and the second vertical plate in the insertion process is avoided.
The transformer positioning base is preferably of an integrally formed structure and can be manufactured by stamping and forming steel plates so as to improve the structural strength of the transformer positioning base. The bottom plate can with the diapire welding of box, two first riser can respectively with the lateral wall or the lateral wall frame welding of the corresponding side of box, thereby realize the fixed connection of transformer location base in the box, so connect and still can effectively increase the mechanical strength of oil tank.
The width of the cross plate on the high voltage side of the transformer is larger than the width of the cross plate on the low voltage side of the transformer, e.g. the cross plate on the high voltage side of the transformer is 10cm, 15cm or 20cm wider than the cross plate on the low voltage side of the transformer.
Referring to fig. 4, a positioning structure for positioning the transformer along the length direction of the box may be disposed on the bottom inner wall of the narrow opening, the positioning structure is preferably a positioning plate (or positioning block) 4 extending inward (extending inward in the transverse direction) from the side wall of the narrow opening along the width direction, the number of the positioning plates is four, two positioning plates are disposed on two sides of the narrow opening along the width direction respectively and symmetrically (meaning that the positioning plates on two sides of the narrow opening along the width direction are symmetrically disposed), a space is reserved between the two positioning plates on the same side, and the space is the same as the length of the body pad of the transformer (allowing an assembly gap to be reserved). So set up, after the ware body pad foot of transformer inserts in the narrow oral area of transformer positioning base, the locating plate can support in the length direction of transformer and lean on the outside (the longitudinal outside) of the corresponding side tip of ware body pad foot of transformer to realize that the transformer is in its length direction's location in the oil tank prevents in the transportation, the transformer for the oil tank takes place the displacement and causes the damage.
The positioning plate or the upper part of the positioning plate can incline from bottom to top to the outer side in the longitudinal direction, so that the distance between the top ends of the two positioning plates positioned on the same side is larger than the distance between the bottom ends, and the distance between the bottom ends of the two positioning plates positioned on the same side is the same as the length of the body foot pad of the transformer (the assembly gap is allowed to be reserved), thereby facilitating the installation of the transformer body.
The elastic pin can be arranged on the longitudinal inner side of the lower part of the positioning plate, the concave pit corresponding to the elastic pin of the corresponding positioning plate is arranged on the side surface of the body foot pad of the transformer, when the body of the transformer is installed in place, the concave pit on the body foot pad is just aligned with the corresponding elastic pin, the pin head of the elastic pin moves outwards under the action of the spring in the elastic pin to insert into the concave pit, and a 'click' sound is generated, so that an operator can know that the corresponding body foot pad is in place. The pits are smooth cambered pits, and do not prevent the taking out of the transformer body.
According to actual needs, a base plate with the shape similar to that of the side surface can be arranged on the side surface of the body foot pad corresponding to the corresponding elastic pin, and the pit corresponding to the elastic pin is arranged on the side surface of the base plate, so that the overlarge distance between the pit and the part of the positioning plate where the elastic pin is arranged is avoided.
The transformer positioning base is arranged in the oil tank, namely the oil tank is provided with the side wall and the bottom wall of the oil tank, the side plate and the bottom plate of the transformer positioning base are not used as a part of the side wall and the bottom wall of the oil tank, and the mechanical strength of the oil tank can be effectively ensured.
The preferred and optional technical means disclosed in the utility model may be combined arbitrarily to form a plurality of different technical schemes, except for the specific description and the further limitation that one preferred or optional technical means is another technical means.
Claims (10)
1. The oil immersed transformer oil tank comprises a tank body, and is characterized in that a groove-shaped transformer positioning base is fixedly arranged at the bottom in the tank body along the length direction of the tank body, the transformer positioning base is in a stepped groove shape and comprises a wide opening part positioned at the upper part and a narrow opening part positioned at the lower part, the width of the narrow opening part is identical to the width of a body foot pad of a transformer, and the height of the narrow opening part is not greater than the height of the body foot pad of the transformer.
2. The oil immersed transformer tank of claim 1, wherein a step width of a sidewall of a transformer high voltage side of the transformer positioning base is greater than a step width of a sidewall of a transformer low voltage side.
3. The oil immersed transformer tank as claimed in claim 2, wherein a distance between outer walls of both side walls of the wide portion is the same as a distance between inner walls of both side walls of the tank body in a width direction.
4. The oil immersed transformer tank of claim 3, wherein the length of the transformer positioning base is the same as the distance between the inner walls of the tank walls at both ends of the tank body in the length direction.
5. The oil immersed transformer tank of claim 4, wherein said transformer positioning base is channel-shaped along its length.
6. The oil immersed transformer tank of claim 5, wherein the transformer positioning base comprises a bottom plate and side plates positioned on two sides of the bottom plate, the side plates are bent, the side plates comprise first vertical plates, transverse plates and second vertical plates, the bottom ends of the first vertical plates are connected with the outer ends of the transverse plates, the inner ends of the transverse plates are connected with the top ends of the second vertical plates, the bottom ends of the second vertical plates are connected with the corresponding side end parts of the bottom plate, the space between the two first vertical plates is the wide opening part, and the space between the two second vertical plates is the narrow opening part.
7. The oil immersed transformer tank of claim 6, wherein the connection between adjacent ones of said first riser, said cross-plate, said second riser and said base plate has a circular arc transition.
8. The oil immersed transformer tank of claim 7, wherein said transformer positioning base is of unitary construction.
9. An oil immersed transformer tank as claimed in any one of claims 1-8, wherein a positioning structure for positioning the transformer along the length direction of the tank body is provided on the bottom inner wall of the narrow mouth portion.
10. The oil immersed transformer tank of claim 9, wherein the positioning structure is a positioning plate extending inwards from a side wall of the narrow opening part along the width direction, the number of the positioning plates is four, two positioning plates are respectively arranged on two sides of the narrow opening part along the width direction and symmetrically arranged, a space is reserved between the two positioning plates on the same side, and the space is the same as the length of a transformer body foot pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320080621.XU CN219105886U (en) | 2023-01-13 | 2023-01-13 | Oil tank of oil immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320080621.XU CN219105886U (en) | 2023-01-13 | 2023-01-13 | Oil tank of oil immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219105886U true CN219105886U (en) | 2023-05-30 |
Family
ID=86455799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320080621.XU Active CN219105886U (en) | 2023-01-13 | 2023-01-13 | Oil tank of oil immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219105886U (en) |
-
2023
- 2023-01-13 CN CN202320080621.XU patent/CN219105886U/en active Active
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