CN213958702U

CN213958702U - Oil-immersed transformer of waterproof infiltration

Info

Publication number: CN213958702U
Application number: CN202022759833.XU
Authority: CN
Inventors: 郑建; 郑雄; 张熠
Original assignee: Liupanshui Xingtai Transformer Co ltd
Current assignee: Liupanshui Xingtai Transformer Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-08-13
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a waterproof oil-immersed transformer, which comprises an oil tank shell, wherein the upper end of the oil tank shell is detachably connected with an oil tank cover, the lower end surface of the oil tank cover is welded with a surrounding edge, the surrounding edge is sleeved outside the upper end of the oil tank shell and detachably connected through a bolt, the lower end surface of the oil tank cover is fixedly connected with an insert block, the outer side of the insert block is sleeved with a first sealing gasket, the upper end of the first sealing gasket is tightly attached to the lower end surface of the oil tank cover, the upper end surface of the oil tank shell is provided with an insertion groove, the inner wall of the insertion groove is fixedly connected with a second sealing gasket, the insert block is inserted inside the insertion groove, the second sealing gasket is tightly wrapped outside the insert block, the utility model discloses an oil-immersed transformer which is provided with the insert block, the insertion groove, the first sealing gasket and the second sealing gasket, so that the oil tank cover and the oil tank shell can be mutually matched for use, and can be tightly connected, has good effect of preventing water penetration.

Description

Oil-immersed transformer of waterproof infiltration

Technical Field

The utility model relates to an oil-immersed transformer technical field specifically is a waterproof infiltration's oil-immersed transformer.

Background

The power transformer is a necessary device for power transmission and distribution, and the power transformer can be an oil-immersed transformer or a dry-type transformer according to different application environments, wherein the oil-immersed transformer is mainly arranged on an outdoor telegraph pole, the body (winding and iron core) of the oil-immersed transformer is arranged in an oil tank filled with transformer oil, and the oil tank is welded by steel plates.

However, the oil tank cover of the oil immersed transformer in the prior art, the screw hole has been seted up to the oil tank body, the bolt passes the screw hole on oil tank cover and the oil tank body, the cooperation nut fastens in the bottom surface on the outer edge of oil tank, wherein lie in outdoor oil tank cover and often can silt up more rainwater or other liquid, and the easy bolt head of silted liquid and the gap infiltration between the case lid are to the screw hole that is used for the construction bolt, thereby rust or the corruption of screw hole with higher speed, and when transformer joint strip decline after ageing leakproofness, the liquid from the screw hole infiltration is inside from the infiltration transformer between oil tank and the case lid easily so, make transformer security reduce, influence transformer running quality and life. To this end, we propose an oil-immersed transformer that is resistant to water penetration.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waterproof oil-immersed transformer, with the oil tank cap who proposes oil-immersed transformer under the prior art in solving above-mentioned background art, the screw has been seted up to the oil tank body, the bolt passes the screw on oil tank cap and the oil tank body, the cooperation nut fastens in the bottom surface on the outer edge of oil tank, wherein lie in outdoor oil tank cap and often can silt up more rainwater or other liquid, and the easy gap infiltration between bolt head of the easy bolt of silting and the case lid is to the screw that is used for mounting bolt in, thereby rust or the corruption of screw with higher speed, and when the ageing back leakproofness of transformer joint strip descends, inside the easy infiltration transformer that follows between oil tank and the case lid of liquid from the screw infiltration so, make transformer security reduce, influence transformer running quality and life's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an oil-immersed transformer of waterproof infiltration, includes the oil tank shell, oil tank shell upper end can be dismantled and be connected with the oil tank cap, the terminal surface welding has the surrounding edge under the oil tank cap, the surrounding edge cup joints in the oil tank shell upper end outside and can dismantle the connection through the bolt, terminal surface fixedly connected with inserted block under the oil tank cap, the first sealed pad has been cup jointed in the inserted block outside, the lower terminal surface of first sealed pad upper end paste tightly at the oil tank cap, the slot has been seted up to the oil tank shell upper end, the sealed pad of inner wall fixedly connected with second of slot, the inserted block is pegged graft inside the slot, the sealed inseparable parcel of pad of second is in the outside of inserted block.

Preferably, the outer side surfaces of the surrounding edge and the oil tank shell are provided with a plurality of groups of threaded holes, and the bolt is in threaded connection with the inner side of each threaded hole.

Preferably, the surrounding edge and the fuel tank cover are of an integrated structure.

Preferably, the inner cavity of the surrounding edge is matched with the outer side edge of the upper end surface of the oil tank shell.

Preferably, the insert block is a square-structured insert block.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a be provided with the inserted block, the slot, first sealed pad and the sealed pad of second, make it use of mutually supporting, can be so that oil tank cap and oil tank shell can inseparable connection, fine waterproof infiltration's effect has been played, when fixed to the oil tank cap installation, make the inserted block of terminal surface insert to the slot under the oil tank cap, and the sealed pad of second in the slot can be to inseparable parcel of inserted block, thereby play the sealed effect of one deck, and first sealed pad makes the junction of oil tank cap and oil tank shell inseparabler, thereby play the sealed effect of second floor, great improvement oil-immersed transformer's waterproof infiltration effect.

2. The utility model discloses a be provided with the surrounding edge, when fixed to the oil tank cap, the surrounding edge cup joints in the up end outside of oil tank shell for when rainy season, the rainwater is along surrounding edge flow direction ground, and the bolt of locking the oil tank cap moreover is installed at the side of oil tank cap, fine avoided the rainwater to permeate to the inside problem of oil tank shell by being connected of oil tank cap and oil tank shell.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the fuel tank cap of the present invention;

fig. 3 is a schematic view of the top view structure of the fuel tank casing of the present invention.

In the figure: 1. a tank housing; 2. a bolt; 3. a fuel tank cap; 4. surrounding edges; 5. a first gasket; 6. inserting a block; 7. a slot; 8. a second gasket.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: an oil-immersed transformer capable of preventing water permeation comprises an oil tank shell 1, wherein an oil tank cover 3 is detachably connected to the upper end of the oil tank shell 1, a surrounding edge 4 is welded to the lower end face of the oil tank cover 3, the surrounding edge 4 is sleeved on the outer side of the upper end of the oil tank shell 1 and detachably connected through a bolt 2, an insertion block 6 is fixedly connected to the lower end face of the oil tank cover 3, a first sealing gasket 5 is sleeved on the outer side of the insertion block 6, the upper end of the first sealing gasket 5 is tightly attached to the lower end face of the oil tank cover 3, an insertion groove 7 is formed in the upper end face of the oil tank shell 1, a second sealing gasket 8 is fixedly connected to the inner wall of the insertion groove 7, the insertion block 6 is inserted into the insertion groove 7, and the second sealing gasket 8 is tightly wrapped on the outer side of the insertion block 6;

multiunit screw hole has all been seted up on surrounding edge 4 and oil tank shell 1's outside surface, 2 threaded connection of bolt is at threaded hole inside, has made things convenient for the installation of bolt 2 fixed to can be to the locking of oil tank cap 3, surrounding

edge

4 and 3 formula structures as an organic whole of oil tank cap have made things convenient for it to make, the inner chamber of surrounding edge 4 and oil tank shell 1's up end off-plate side looks adaptation for surrounding edge 4 can cup joint in the 1 up end outside of oil tank shell, inserted block 6 is the inserted block of square structure, makes its grafting that can be inseparable inside slot 7.

Specifically, when in use, the insertion block 6, the slot 7, the first sealing gasket 5 and the second sealing gasket 8 are arranged to be matched with each other for use, so that the oil tank cover 3 and the oil tank shell 1 can be tightly connected, a good waterproof effect is achieved, when the oil tank cover 3 is fixedly installed, the insertion block 6 on the lower end face of the oil tank cover 3 is inserted into the slot 1, the second sealing gasket 8 in the slot 1 can tightly wrap the insertion block 6, a layer of sealing effect is achieved, the first sealing gasket 5 enables the connection part of the oil tank cover 3 and the oil tank shell 1 to be more tight, a second layer of sealing effect is achieved, the waterproof effect of the oil-immersed transformer is greatly improved, the surrounding edge 4 is arranged, when the oil tank cover 3 is fixedly arranged, the surrounding edge 4 is sleeved on the outer side of the upper end face of the oil tank shell 1, and rainwater flows to the ground along the surrounding edge in rainy season, and the bolt of locking fuel tank cap 3 is installed at the side of fuel tank cap 3, fine having avoided the rainwater to permeate to the inside problem of fuel tank shell 1 by being connected of fuel tank cap 3 and fuel tank shell 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a waterproof infiltration's oil-immersed transformer, includes oil tank casing (1), its characterized in that: the utility model discloses a fuel tank, including fuel tank shell (1), tank cap (3), terminal surface welding has surrounding edge (4) under fuel tank cap (3), surrounding edge (4) cup joint in the outer side of fuel tank shell (1) upper end and can dismantle the connection through bolt (2), terminal surface fixedly connected with inserted block (6) under fuel tank cap (3), first sealed pad (5) have been cup jointed in the inserted block (6) outside, paste the lower terminal surface tightly at fuel tank cap (3) on first sealed pad (5), slot (7) have been seted up to fuel tank shell (1) up end, the sealed pad (8) of inner wall fixedly connected with second of slot (7), inserted block (6) are pegged graft inside slot (7), the sealed inseparable parcel of pad (8) of second is in the outside of inserted block (6).

2. The oil-filled transformer of claim 1, which is resistant to water penetration, characterized in that: the outer side surfaces of the surrounding edge (4) and the oil tank shell (1) are provided with a plurality of groups of threaded holes, and the bolt (2) is in threaded connection with the inner portions of the threaded holes.

3. The oil-filled transformer of claim 1, which is resistant to water penetration, characterized in that: the surrounding edge (4) and the oil tank cover (3) are of an integrated structure.

4. The oil-filled transformer of claim 1, which is resistant to water penetration, characterized in that: the inner cavity of the surrounding edge (4) is matched with the outer side edge of the upper end surface of the oil tank shell (1).

5. The oil-filled transformer of claim 1, which is resistant to water penetration, characterized in that: the insert block (6) is of a square structure.