CN218123141U

CN218123141U - Oil-immersed transformer with multi-stage oil circulation system

Info

Publication number: CN218123141U
Application number: CN202220922145.7U
Authority: CN
Inventors: 郭辉; 王传伟; 王凌云
Original assignee: Shandong Jieyuan Transformer Co ltd
Current assignee: Shandong Jieyuan Transformer Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-12-23
Anticipated expiration: 2032-04-21

Abstract

The utility model discloses an oil-immersed transformer with multistage oil circulation system relates to transformer technical field, including the transformer body, the top of transformer body is equipped with first oil inlet, the bottom of transformer is equipped with first oil-out and second oil-out, first oil-out is through the oil feed end of first cooler bin of first play oil union coupling, the first oil inlet of first cooler bin oil end through advancing oil union coupling, be equipped with first oil pump on advancing oil union, the second oil-out goes out the oil feed end of oil union coupling second cooler bin through the second, the oil feed end of second cooler bin goes out oil union coupling to first oil pipe through the third, be equipped with the second oil pump on the third oil pipe, make and carry out multistage circulation to fluid, carry out multistage cooling to fluid, improve the cooling efficiency of fluid, improve the life of transformer.

Description

Oil-immersed transformer with multi-stage oil circulation system

Technical Field

The utility model relates to a transformer technical field, in particular to oil immersed transformer with multistage oil circulation system.

Background

Oil-immersed transformer is a more reasonable structure, the better novel high performance transformer of performance, and the transformer during operation cools off iron core and high-low voltage winding through the cooling oil, need carry out the circulation cooling to the thermal oil that absorbs of transformer outflow in the use, but current cooling device can't be quick cools off hot oil, and cooling efficiency is low.

Disclosure of Invention

To above defect, the utility model aims at providing an oil immersed transformer with multistage oil circulation system aims at solving the technical problem that the hot oil cooling is inefficient among the prior art.

In order to solve the technical problem, the technical scheme of the utility model is that:

oil-immersed transformer with multistage oil circulation system, including the transformer body, the top of transformer body is equipped with first oil inlet, the bottom of transformer body is equipped with first oil-out and second oil-out, first oil-out is through the oil feed end of first cooler bin of first play oil pipe connection, the first oil inlet of the end of producing oil through advancing oil pipe connection of first cooler bin, it is equipped with first oil pump on the oil pipe to advance, the second oil-out goes out the oil feed end of oil pipe connection second cooler bin through the second, the end of producing oil of second cooler bin is connected to first oil pipe through third play oil pipe, be equipped with the second oil pump on the third play oil pipe.

Preferably, first cooler bin and second cooler bin all include the box, and the bottom of box is equipped with the second oil inlet, and the top of box is equipped with the third oil-out, and the rotation is equipped with the pivot in the box, is equipped with first cavity between pivot and the box, and the both ends of first cavity are connected respectively to second oil inlet and third oil-out, and the rigid coupling has first helical blade on the outer wall of pivot, still is equipped with drive pivot pivoted power component on the box, is equipped with the cooling water chamber in the box, is equipped with the water inlet and the delivery port of connecting the cooling water chamber on the box.

Preferably, the top of pivot is equipped with the second cavity, is equipped with the cartridge filter in the second cavity, and the one end and the pivot of cartridge filter rotate to be connected, and the other end and the box of cartridge filter can be dismantled and be connected, and the open end of cartridge filter is connected to the third oil-out.

Preferably, the first cavity is fixedly connected with a second helical blade, and the rotating directions of the first helical blade and the second helical blade are opposite.

Preferably, the cover plate is detachably mounted on the box body, the filter cartridge is detachably mounted on the cover plate, and the third oil outlet is formed in the cover plate.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

because the utility model discloses in set up first cooler bin and second cooler bin for can carry out multistage circulation to fluid, carry out multistage cooling to fluid, improve the cooling efficiency of fluid, improve the life of transformer.

Because be equipped with first cavity, pivot, first helical blade and cooling water cavity in first cooler bin and second cooler bin, the cooling efficiency of fluid can further be accelerated in the setting of first helical blade and cooling water cavity, and the circulation efficiency of fluid can also be accelerated in the setting of first helical blade.

Because the top of pivot is equipped with the second cavity, is equipped with the cartridge filter in the second cavity, and the impurity in the transformer that the setting of cartridge filter can take out to fluid filters, improves the cleanliness factor of fluid, improves the inside cleanliness factor of transformer, and then improves the life of transformer.

Because the rigid coupling has second helical blade on the first cavity, the setting of second helical blade can accelerate the filtration efficiency of cartridge filter.

Because the cover plate is detachably arranged on the box body, the filter cartridge is more convenient to disassemble and clean due to the arrangement of the cover plate, and the box body is easy to operate.

Drawings

Fig. 1 is a schematic diagram of an oil immersed transformer with a multi-stage oil circulation system according to the present invention;

fig. 2 is a structural sectional view of the cooling tank of fig. 1.

In the figure, a transformer body 1, a first oil inlet 10, a first oil outlet 11, a second oil outlet 12, a first oil outlet pipe 13, an oil inlet pipe 14, a first oil pump 15, a second oil outlet pipe 16, a second cooling tank 17, a third oil outlet pipe 18, a second oil pump 19, a first cooling tank 2, a tank body 20, a first cavity 200, a cooling water cavity 201, a water inlet 202, a water outlet 203, a second oil inlet 21, a third oil outlet 22, a rotating shaft 23, a first helical blade 230, a second cavity 231, a second helical blade 232, a motor 24, a filter cartridge 25 and a cover plate 26.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The position referred to in this specification is based on the position of the oil immersed transformer with the multi-stage oil circulation system in normal operation, and the position of the oil immersed transformer in storage and transportation is not limited, and only represents a relative position relationship, but not an absolute position relationship.

As shown in fig. 1 and fig. 2 together, an oil immersed transformer with a multistage oil circulation system includes a transformer body 1, a first oil inlet 10 is disposed at the top of the transformer body 1, a first oil outlet 11 and a second oil outlet 12 are disposed at the bottom of the transformer body 1, the first oil outlet 11 is connected to an oil inlet end of a first cooling box 2 through a first oil outlet pipe 13, the oil outlet end of the first cooling box 2 is connected to the first oil inlet 10 through an oil inlet pipe 14, a first oil pump 15 is disposed on the oil inlet pipe 14, the second oil outlet 12 is connected to an oil inlet end of a second cooling box 17 through a second oil outlet pipe 16, the oil outlet end of the second cooling box 17 is connected to the first oil outlet pipe 13 through a third oil outlet pipe 18, and a second oil pump 19 is disposed on the third oil outlet pipe 18.

When the transformer works, cooling oil enters the transformer box body from the first oil inlet 10, oil immersion cooling is conducted on an iron core and a high-low voltage winding in the transformer box body, the cooling oil exchanges heat with heat on the iron core and the high-low voltage winding, a part of hot oil after heat exchange flows into the first oil outlet pipe 13 from the first oil outlet 11, oil in the first oil outlet pipe 13 enters the first cooling box 2 under the action of the first oil pump 15, the oil cooled by the first cooling box 2 enters the transformer body 1 from the oil inlet pipe 14 to continue cooling the transformer body, the other part of hot oil after heat exchange flows into the second oil outlet pipe 16 from the second oil outlet 12, the oil in the second oil outlet pipe 16 enters the second cooling box 17 under the action of the second oil pump 19, the oil cooled by the second cooling box 17 enters the first oil outlet pipe 13 from the third oil outlet pipe 18, and enters the transformer box body through second-stage cooling of the first cooling box 2 to cool the transformer box body, circulation of multi-stage oil is achieved, and the cooling efficiency of the oil is improved.

Wherein, the first cooling box 2 and the second cooling box 17 both include a box body 20, the bottom of the box body 20 is provided with a second oil inlet 21, the top of the box body 20 is provided with a third oil outlet 22, the box body 20 is rotatably provided with a rotating shaft 23, a first cavity 200 is arranged between the rotating shaft 23 and the box body 20, the second oil inlet 21 and the third oil outlet 22 are respectively connected with two ends of the first cavity 200, the outer wall of the rotating shaft 23 is fixedly connected with a first helical blade 230, the box body 20 is also provided with a power component for driving the rotating shaft 23 to rotate, the power component in the embodiment is a motor 24, an output shaft of the motor 24 is connected with the rotating shaft 23 through a coupling, the box body 20 is provided with a cooling water cavity 201, the box body 20 is provided with a water inlet 202 and a water outlet 203 connected with the cooling water cavity 201, and the water is supplied to the water inlet 202 through a water supply system, the water after the intensification gets into in the water feed system from delivery port 203, set up temperature regulation system in the water feed system, the water feed system is after the hot water cooling that flows in, continue to supply with cooling water to water inlet 202, realize the cyclic utilization of cooling water, the top of pivot 23 is equipped with second cavity 231, be equipped with cartridge filter 25 in the second cavity 231, cartridge filter 25's one end and pivot 23 rotate to be connected, cartridge filter 25's the other end and box 20 can be dismantled and be connected, the open end of cartridge filter 25 is connected to third oil-out 22, it is concrete, detachable installs apron 26 on the box 20, detachable installs cartridge filter 25 on the apron 26, third oil-out 22 has been seted up on the apron 26, apron 26 passes through the bolt fastening on box 20, cartridge filter 25 passes through the bolt fastening on apron 26.

Preferably, the first cavity 200 is fixedly connected with a second helical blade 232, and the first helical blade 230 and the second helical blade 232 have opposite rotation directions.

When the transformer works, hot oil enters the first cavity 200 from the second oil inlet 21, cooling water in the cooling water cavity 201 cools the hot oil in the first cavity 200, the motor 24 drives the rotating shaft 23 to rotate, the first spiral blade 230 conveys oil to the second cavity 231, the second spiral blade 232 conveys the oil entering the second cavity 231 to the inside of the second cavity 231, the oil in the second cavity 231 is filtered by the filter drum 25, the filtered oil entering the filter drum 25 flows out from the third oil outlet 22, the first spiral blade 230 can improve the cooling efficiency of the oil, the second spiral blade 232 can improve the cooling efficiency and the filtering efficiency of the oil, the cover plate 26 is arranged to facilitate the disassembly and the cleaning of the filter drum 25, and the operation is easy.

The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without creative labor from the above conception, and all the changes fall within the protection scope of the present invention.

Claims

1. Oil immersed transformer with multistage oil circulation system, including the transformer body, the top of transformer body is equipped with first oil inlet, its characterized in that, the bottom of transformer body is equipped with first oil-out and second oil-out, first oil-out is through the oil feed end of first cooler bin of first play oil union coupling, the oil end of first cooler bin is through advancing oil union coupling first oil inlet, it is equipped with first oil pump on the oil pipe to advance, the second oil-out goes out the oil feed end of oil union coupling second cooler bin through the second, the oil end of second cooler bin goes out oil union coupling to first oil pipe through the third, be equipped with the second oil pump on the third oil pipe.

2. The oil immersed transformer with the multistage oil circulation system according to claim 1, wherein the first cooling tank and the second cooling tank each comprise a tank body, a second oil inlet is formed in the bottom of the tank body, a third oil outlet is formed in the top of the tank body, a rotating shaft is rotatably arranged in the tank body, a first cavity is formed between the rotating shaft and the tank body, the second oil inlet and the third oil outlet are respectively connected to two ends of the first cavity, a first helical blade is fixedly connected to an outer wall of the rotating shaft, a power assembly for driving the rotating shaft to rotate is further arranged on the tank body, a cooling water cavity is formed in the tank body, and a water inlet and a water outlet which are connected with the cooling water cavity are formed in the tank body.

3. The oil immersed transformer with the multistage oil circulation system according to claim 2, wherein a second cavity is formed in the top of the rotating shaft, a filter cartridge is arranged in the second cavity, one end of the filter cartridge is rotatably connected with the rotating shaft, the other end of the filter cartridge is detachably connected with the box body, and the third oil outlet is connected with an open end of the filter cartridge.

4. The oil immersed transformer with the multistage oil circulation system according to claim 3, wherein a second helical blade is fixedly connected to the first cavity, and the first helical blade and the second helical blade have opposite rotation directions.

5. The oil immersed transformer with the multistage oil circulation system according to claim 4, wherein a cover plate is detachably mounted on the tank body, the filter cartridge is detachably mounted on the cover plate, and the third oil outlet is formed in the cover plate.