CN210136766U

CN210136766U - Oil-immersed transformer with automatic cleaning function

Info

Publication number: CN210136766U
Application number: CN201921214885.XU
Authority: CN
Inventors: 何煜青; 徐惠华; 雷福荣; 游上云; 徐斌
Original assignee: Anshun Fujian Transformer Co Ltd
Current assignee: Anshun Fujian Transformer Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-03-10
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a relate to oil-immersed transformer technical field specifically is an oil-immersed transformer with automatic clearance function, including oil-immersed transformer casing, oil-immersed transformer casing's inside is provided with the coil, and oil-immersed transformer casing's outside is provided with thermal-insulated shell, and oil-immersed transformer casing's upper right end intercommunication is provided with the trachea, and oil-immersed transformer casing's upper left end intercommunication is provided with cooling cycle and advances oil pipe. In the utility model, the oil liquid in the circulating cooling is filtered by the filter box, so that the service life of the oil liquid is prolonged, and the oil liquid can play a good cooling and maintaining role; the utility model discloses in through with the outside cover of oil-immersed transformer casing be equipped with thermal-insulated shell, carry out holistic thermal-insulated protection, only oil-immersed transformer casing is inside to be generated heat, has alleviateed the burden during the oil feeding liquid cooling maintenance, and dispels the heat through the fluid cooling circulation chamber outside at thermal-insulated shell around setting up, has guaranteed holistic cooling effect.

Description

Oil-immersed transformer with automatic cleaning function

Technical Field

The utility model relates to an oil-immersed transformer technical field specifically is an oil-immersed transformer with automatic clearance function.

Background

The oil immersed transformer is a kind of distribution transformer, and the distribution transformer assigns a kind of static electrical apparatus that changes alternating voltage and electric current according to the law of electromagnetic induction and transmits alternating current energy in the electric system, the oil immersed transformer still has following drawback in the in-service use process:

1. in the prior art, an oil immersed transformer usually cools oil directly through a circulating oil cooling system, but the viscosity of the oil is often easily improved in the circulating flowing process, so that the protection of the oil is poor;

2. in the prior art, the oil-immersed transformer is usually cooled and maintained inside the oil-immersed transformer through a circulating oil cooling system arranged outside, a shell of the oil-immersed transformer is easily affected by insolation to form high temperature which is transmitted to the inside of the oil-immersed transformer, the overall temperature resistance is poor, a heat dissipation device is required to be added for heat dissipation, and the use and manufacturing cost is increased.

Therefore, an oil-immersed transformer with an automatic cleaning function is provided to well solve the above disadvantages.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil-immersed transformer with automatic clearance function to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an oil-immersed transformer with an automatic cleaning function comprises an oil-immersed transformer shell, wherein a coil is arranged inside the oil-immersed transformer shell, a heat insulation shell is arranged outside the oil-immersed transformer shell, an air pipe is communicated and arranged at the upper right end of the oil-immersed transformer shell, a cooling circulation oil inlet pipe is communicated and arranged at the upper left end of the oil-immersed transformer shell, the cooling circulation oil inlet pipe is arranged in an oil cooling circulation cavity formed between the oil-immersed transformer shell and the heat insulation shell, the lower end of the cooling circulation oil inlet pipe is communicated with the upper end of an oil pump, the oil pump is fixedly arranged at the lower left end of the heat insulation shell, a cooling circulation oil outlet pipe is communicated and arranged at the right end of the cooling circulation oil outlet pipe, a filter box is communicated and arranged at the right end of the cooling circulation oil outlet pipe, a multilayer filter cotton layer is arranged inside the filter, the right-hand member of oil extraction pipe is provided with the inclined plane, the fixed welding of the upper surface on inclined plane has two sets of cutting ferrule, and the matching block has the card post in the cutting ferrule, the fixed welding of the upper end at the oil-immersed transformer casing lower surface at the card post, the left lower extreme of oil-immersed transformer casing is provided with the inside and outside oil-out of intercommunication, the below of thermal-insulated shell is provided with the bottom plate, and equal fixed welding in both ends has spacing post about the upper surface of bottom plate, equal fixed welding in both ends has the stop collar about the lower surface of thermal-insulated shell, mutual block setting between spacing post and the stop collar, the fixed welding of upper surface intermediate position of bottom plate has electric putter, and electric putter's the fixed welding in.

Preferably, the upper end of the air pipe penetrates through the upper surface of the heat insulation shell, and a cotton filter pad is fixedly arranged at the upper end of the air pipe.

Preferably, the oil drain pipe is communicated with the inside and the outside of the heat insulation shell, and the lower end part of the oil drain pipe is sealed with a sealing cap through threaded fit.

Preferably, the inclined plane is arranged on the inner wall of the lower end of the heat insulation shell, and the right end of the inclined plane is inclined upwards.

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

1. in the utility model, the oil liquid in the circulating cooling is filtered by the filter box, so that the service life of the oil liquid is prolonged, and the oil liquid can play a good cooling and maintaining role;

2. the utility model discloses in through with the outside cover of oil-immersed transformer casing be equipped with thermal-insulated shell, carry out holistic thermal-insulated protection, only oil-immersed transformer casing is inside to be generated heat, has alleviateed the burden during the oil feeding liquid cooling maintenance, and dispels the heat through the fluid cooling circulation chamber outside at thermal-insulated shell around setting up, has guaranteed holistic cooling effect.

Drawings

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

fig. 2 is an enlarged schematic view of a structure shown in fig. 1 according to the present invention.

In the figure: the oil-immersed transformer comprises an oil-immersed transformer shell 1, a heat insulation shell 2, an oil cooling circulation cavity 3, an air pipe 4, a cotton filter pad 5, a cooling circulation oil inlet pipe 6, a coil 7, an oil pump 8, a clamping column 9, an inclined plane 10, a limiting sleeve 11, a limiting column 12, a bottom plate 13, an electric push rod 14, a filter box 15, a cooling circulation oil outlet pipe 16, a filter cotton layer 17, a sealing cap 18, an oil discharge pipe 19, a clamping sleeve 20 and an oil outlet 21.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 2, the present invention provides a technical solution: an oil-immersed transformer with an automatic cleaning function comprises an oil-immersed transformer shell 1, wherein a coil 7 is arranged inside the oil-immersed transformer shell 1, a heat insulation shell 2 is arranged outside the oil-immersed transformer shell 1, and the right upper end of the oil-immersed transformer shell 1 is communicated with an air pipe 4, wherein the upper end of the air pipe 4 penetrates through the upper surface of the heat insulation shell 2, a cotton filter pad 5 is fixedly arranged at the upper end of the air pipe 4, the cotton filter pad 5 has a dustproof function, the air pipe 4 ensures internal and external air pressure, and smooth operation of a cooling circulation system is ensured;

the left upper end intercommunication at oil-immersed transformer casing 1 is provided with cooling circulation and advances oil pipe 6, cooling circulation advances oil pipe 6 and sets up in the fluid cooling circulation chamber 3 that forms between oil-immersed transformer casing 1 and thermal-insulated shell 2, cooling circulation advances the lower extreme of oil pipe 6 and the upper end of oil pump 8 is linked together, the fixed left lower extreme that sets up at thermal-insulated shell 2 of oil pump 8, the right-hand member intercommunication of oil pump 8 is provided with cooling circulation play oil pipe 16, cooling circulation goes out the right-hand member intercommunication of oil pipe 16 and is provided with filter box 15, filter box 15's inside is provided with the cotton layer of multiple filtration 17, filter box 15's the right-hand oil extraction pipe 19 that is provided with, the inside and outside setting of oil extraction pipe 19 intercommunication thermal-insulated shell 2, the lower extreme tip of oil extraction pipe 19 has seal cap.

The right end of the oil discharge pipe 19 is provided with an inclined plane 10, the inclined plane 10 is arranged on the inner wall of the lower end of the heat insulation shell 2, the right end of the inclined plane 10 inclines upwards, and the inclined plane 10 ensures that oil finally flows into the filter box 15 for filtering.

The upper surface fixed welding on inclined plane 10 has two sets of cutting ferrule 20, and the matching block has card post 9 in the cutting ferrule 20, and holistic dismouting block is convenient, when the in-service use, can be provided with the cap that can open in thermal-insulated shell 2 upper end, and the maintenance is installed and is maintained and the maintenance to the oil-immersed transformer casing 1 of inside to the convenience.

Wherein, the fixed welding in the lower surface of oil-immersed transformer casing 1 in the upper end of card post 9, the left lower extreme of oil-immersed transformer casing 1 is provided with the inside and outside oil-out 21 of intercommunication, and the below of thermal-insulated shell 2 is provided with bottom plate 13, and both ends equal fixed welding has spacing post 12 about the upper surface of bottom plate 13, and both ends equal fixed welding has stop collar 11 about the lower surface of thermal-insulated shell 2, and mutual block sets up between spacing post 12 and the stop collar 11, and fixed knot constructs firmly.

An electric push rod 14 is fixedly welded in the middle of the upper surface of the bottom plate 13, the upper end of the electric push rod 14 is fixedly welded in the middle of the lower surface of the heat insulation shell 2, and the type of the electric push rod 14 can use ANT-26, but is not limited to the electric push rod of the type, and can be selected according to actual requirements.

The working principle is as follows:

the cooling maintenance is carried out through the inside coil 7 of the inside fluid oil feeding immersion type transformer casing 1 of oil immersion type transformer casing 1, oil pump 8 starts, the continuous oil that spills from oil-out 21 in the oil immersion type transformer casing 1, cool off through fluid cooling circulation chamber 3, then it is cooled off the oil pipe 6 and is advanced the cooling once more to be inhaled cooling circulation from cooling circulation play oil pipe 16 after filtering through filter box 15, later follow and get into once more through the upper end of oil immersion type transformer casing 1, it lowers the temperature and maintains to spray on coil 7, the thermal-insulated shell 2 of whole oil immersion type transformer casing 1 outside carries out thermal-insulated protection, integral oily maintenance, the protectiveness is stronger.

The cotton filter pad 5 is taken off, oil can be added from the air pipe 4, the electric push rod 14 is started, and when the oil-immersed transformer shell 1 is lifted, the sealing cap 18 on the oil discharge pipe 19 is conveniently detached, so that oil can be replaced regularly.

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 an oil-immersed transformer with automatic clearance function, includes oil-immersed transformer casing (1), its characterized in that: the oil-immersed transformer comprises an oil-immersed transformer shell (1), wherein a coil (7) is arranged inside the oil-immersed transformer shell (1), a heat insulation shell (2) is arranged outside the oil-immersed transformer shell (1), an air pipe (4) is arranged at the upper right end of the oil-immersed transformer shell (1) in a communicated manner, a cooling circulation oil inlet pipe (6) is arranged at the upper left end of the oil-immersed transformer shell (1) in a communicated manner, the cooling circulation oil inlet pipe (6) is arranged in an oil cooling circulation cavity (3) formed between the oil-immersed transformer shell (1) and the heat insulation shell (2), the lower end of the cooling circulation oil inlet pipe (6) is communicated with the upper end of an oil pump (8), the oil pump (8) is fixedly arranged at the lower left end of the heat insulation shell (2), a cooling circulation oil outlet pipe (16) is arranged in a communicated with the right end of the oil pump (, the oil-immersed transformer is characterized in that a multilayer filter cotton layer (17) is arranged inside the filter box (15), an oil discharge pipe (19) is arranged on the right side of the filter box (15), an inclined surface (10) is arranged at the right end of the oil discharge pipe (19), two groups of clamping sleeves (20) are fixedly welded on the upper surface of the inclined surface (10), clamping columns (9) are clamped in the clamping sleeves (20) in a matching manner, the upper ends of the clamping columns (9) are fixedly welded on the lower surface of the oil-immersed transformer shell (1), oil outlets (21) communicated with the inside and the outside are arranged at the left lower end of the oil-immersed transformer shell (1), a bottom plate (13) is arranged below the heat insulation shell (2), limiting columns (12) are fixedly welded at the left end and the right end of the upper surface of the bottom plate (13), limiting sleeves (11) are fixedly welded at the left end and the right end of the lower surface of the heat, the middle position of the upper surface of the bottom plate (13) is fixedly welded with an electric push rod (14), and the upper end of the electric push rod (14) is fixedly welded at the middle position of the lower surface of the heat insulation shell (2).

2. The oil-filled transformer with the automatic cleaning function according to claim 1, characterized in that: the upper end of trachea (4) runs through the upper surface setting of thermal-insulated shell (2), and the upper end of trachea (4) is fixed and is provided with cotton filter pad (5).

3. The oil-filled transformer with the automatic cleaning function according to claim 1, characterized in that: the oil discharge pipe (19) is communicated with the inside and the outside of the heat insulation shell (2), and the lower end part of the oil discharge pipe (19) is sealed with a sealing cap (18) through thread matching.

4. The oil-filled transformer with the automatic cleaning function according to claim 1, characterized in that: the inclined plane (10) is arranged on the inner wall of the lower end of the heat insulation shell (2), and the right end of the inclined plane (10) inclines upwards.