CN215527411U

CN215527411U - Forced oil circulation cooler for transformer

Info

Publication number: CN215527411U
Application number: CN202121907221.9U
Authority: CN
Inventors: 万东升; 戴荳力; 马红红
Original assignee: Nantong Wanma Hydraulic Machinery Co ltd
Current assignee: Nantong Wanma Hydraulic Machinery Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-01-14
Anticipated expiration: 2031-08-16

Abstract

The utility model belongs to the technical field of transformers, and particularly relates to a transformer forced oil circulation cooler which comprises a shell, wherein a water delivery pipe is fixed inside the shell, a water mist spray head for cooling is fixed on the surface of the water delivery pipe, the water delivery pipe penetrates through the surface of the shell, one end of the water delivery pipe is fixedly connected with a water collecting pipe, the lower surface of the shell is fixedly connected with a base, the surface of the base is fixedly connected with a water pump through bolts, and the output end of the water pump is connected with the water collecting pipe through a hose. The water pipe is arranged in the shell, the surface of the water pipe is provided with the plurality of water mist nozzles, and water in the water pipe is sprayed to the heat dissipation oil pipe and the metal heat dissipation sheet in the oil pipe heat dissipation body in a water mist mode, so that equipment does not need to be arranged in a place with a large amount of water as cooling water, meanwhile, the front part of the water mist nozzles is provided with the heat dissipation fan to accelerate the evaporation of water on the surfaces of the metal heat dissipation sheet and the heat dissipation oil pipe, and the heat dissipation efficiency and the applicability of the cooler are improved.

Description

Forced oil circulation cooler for transformer

Technical Field

The utility model relates to the technical field of transformers, in particular to a strong oil circulating cooler for a transformer.

Background

The transformer strong oil circulation cooler is a device which cools by adopting a strong oil circulation mode; the forced oil circulation cooling mode takes water as a cooling medium, has high cooling efficiency, and is suitable for large transformers and occasions with cooling water sources; the transformer adopting the cooling mode does not have a radiator on the oil tank, but a set of system connected with the oil tank is additionally arranged outside the transformer, and comprises an oil pump, an oil filter, a water cooler and the like. The cooling water is filled in the cooler, hot oil flows through the outside, the cooling water takes away the heat of the oil and then is discharged from the water discharge pipe, so that the hot oil is cooled.

The existing strong oil circulation cooler has the following problems:

1. the existing strong oil circulation cooler needs to be used and placed in occasions with cooling water sources, a large amount of water is used for cooling the heat dissipation oil pipe ceaselessly, the strong oil circulation cooler cannot be used in places without a large amount of cooling water sources, and the method is greatly limited by places and has low applicability;

2. in order to increase the heat dissipation area and improve the heat dissipation effect of the conventional strong oil circulation cooler, a layer of thin metal sheet is wound outside each pipeline; the fan sucks in from the front of the strong oil cooler, takes away the heat through the heat-dissipating oil pipe and then discharges from the back of the strong oil air cooler, when the transformer is cooled, because the structure of the heat-dissipating oil circuit is dense, while the strong air current passes through, the sundries carried in are attached to the thin metal sheet outside the pipeline, when serious, the front of the whole cooler can be blocked, a barrier with airtight surface is formed, the circulation of air is blocked, and at the moment, the running resistance of the fan is increased, and the motor of the fan can be burnt; the cooler under the condition can not only play a role in heat dissipation and cooling, but also prevent the transformer from dissipating heat, reduce the output of the transformer, and cause body deformation, oil injection and even explosion when the transformer runs under high oil temperature, thereby directly endangering the safety of the system.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a strong oil circulating cooler for a transformer, which solves the problems that the arrangement and the use of the conventional strong oil circulating cooler need to be in a place with a cooling water source, the use place is limited by the water source, and the applicability is poor; meanwhile, the existing cooler is not provided with a device for preventing sundries, and the heat dissipation part is easily attached by the sundries, so that the heat dissipation effect and the equipment safety are influenced.

The second technical proposal.

The utility model specifically adopts the following technical scheme for realizing the purpose:

a strong oil circulation cooler for a transformer comprises a shell, wherein a water delivery pipe is fixed inside the shell, a water mist spray head for cooling is fixed on the surface of the water delivery pipe, the water delivery pipe penetrates through the surface of the shell, a water collecting pipe is fixedly connected to one end of the water delivery pipe, a base is fixedly connected to the lower surface of the shell, a water pump is fixedly connected to the surface of the base through bolts, the output end of the water pump is connected with the water collecting pipe through a hose, an oil pipe radiator is fixedly connected to the surface of the shell, a heat dissipation oil pipe is arranged inside the oil pipe radiator and penetrates through the surface of the oil pipe radiator, a metal cooling fin is sleeved on the surface of the heat dissipation oil pipe, a ventilation frame is arranged on the surface of the shell, a support rod is fixedly connected to the inner wall of the ventilation frame, a cooling fan is fixed on the surface of the support rod, and an outer protective net is fixed on the inner wall of the ventilation frame, an inner protective net is inserted in the shell.

Further, the inner protective net penetrates through the surface of the shell and is fixed with the shell through bolts, and the surface of the inner protective net is provided with a pulling and holding block.

Further, one end of the heat radiation oil pipe is fixedly connected with an upper bundling box, an oil outlet is formed in the surface of the upper bundling box, the other end of the heat radiation oil pipe is fixedly connected with a lower bundling box, and an oil inlet is formed in the surface of the lower bundling box.

Furthermore, the surface of base has seted up the fixed orifices, the fixed orifices has four.

Furthermore, a supporting block is fixed inside the shell and is tightly attached to the inner protective net.

(III) advantageous effects

Compared with the prior art, the utility model provides a strong oil circulating cooler for a transformer, which has the following beneficial effects:

1. the water pipe is arranged in the shell, the plurality of water spray nozzles are arranged on the surface of the water pipe, and water in the water pipe is sprayed to the heat dissipation oil pipe and the metal heat dissipation sheet in the oil pipe heat dissipation body in a water spray mode, so that equipment does not need to be arranged in a place with a large amount of water as cooling water, meanwhile, the heat dissipation fan is used in the front of the water spray nozzles to accelerate evaporation of water on the surfaces of the metal heat dissipation sheet and the heat dissipation oil pipe, and the heat dissipation efficiency and the applicability of the cooler are improved.

2. According to the utility model, the outer protective net is fixed on the inner wall of the ventilation frame, so that sundries are prevented from being sucked in when the cooling fan runs, the sundries are attached to the surfaces of the metal cooling fins and the cooling oil pipe to influence the cooling efficiency of the radiator, meanwhile, the inner protective net with the mesh density larger than that of the outer protective net is arranged between the cooling fan and the water pipe, the sundries sucked in by the cooling fan are further filtered, the outer protective net and the inner protective net are regularly cleaned, the maintenance difficulty of the cooler is reduced, and the working efficiency of the cooler is increased.

Drawings

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

FIG. 2 is an internal cross-sectional view of the present invention;

fig. 3 is a side view of the present invention.

In the figure: 1. a housing; 2. a water delivery pipe; 3. a water mist spray head; 4. a water collection pipe; 5. a water pump; 6. a hose; 7. an oil pipe heat radiation body; 8. a heat-dissipating oil pipe; 9. a metal heat sink; 10. a ventilation frame; 11. a support bar; 12. a heat radiation fan; 13. an outer protective net; 14. an inner protective net; 15. a pulling block; 16. feeding a bundling box; 17. an oil outlet; 18. a bundling box is arranged; 19. an oil inlet; 20. a fixing hole; 21. a support block; 130. a base.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1, 2 and 3, a transformer forced oil circulation cooler provided by an embodiment of the present invention includes a housing 1, a water pipe 2 is fixed inside the housing 1, a water mist nozzle 3 for cooling is fixed on the surface of the water pipe 2, the water pipe 2 penetrates the surface of the housing 1, one end of the water pipe 2 is fixedly connected with a water collecting pipe 4, the lower surface of the housing 1 is fixedly connected with a base 130, the surface of the base 130 is fixedly connected with a water pump 5 through a bolt, the output end of the water pump 5 is connected with the water collecting pipe 4 through a hose 6, the surface of the housing 1 is fixedly connected with an oil pipe radiator 7, a heat dissipating oil pipe 8 is arranged inside the oil pipe radiator 7, the heat dissipating oil pipe 8 penetrates the surface of the oil pipe radiator 7, a metal heat dissipating fin 9 is sleeved on the surface of the heat dissipating oil pipe 8, a ventilation frame 10 is arranged on the surface of the housing 1, and a support rod 11 is fixedly connected to the inner wall of the ventilation frame 10, the surface of the supporting rod 11 is fixed with a heat radiation fan 12, the inner wall of the ventilation frame 10 is fixed with an outer protective net 13, the inner protective net 14 is inserted in the shell 1, the water delivery pipe 2 is arranged in the shell 1, the plurality of water mist spray heads 3 are arranged on the surface of the water delivery pipe 2, water in the water delivery pipe 2 is sprayed onto a heat radiation oil pipe 8 and a metal heat radiation fin 9 in an oil pipe heat radiation body 7 in a water mist mode, so that equipment can be not required to be arranged in a place with a large amount of water source as cooling water, meanwhile, the heat radiation fan 12 is used in the front of the water mist spray heads 3 to accelerate the evaporation of water on the surfaces of the metal heat radiation fin 9 and the heat radiation oil pipe 8, the heat radiation efficiency and the applicability of a cooler are improved, the outer protective net 13 is fixed on the outer side of the heat radiation fan 12 on the inner wall of the ventilation frame 10 to prevent the heat radiation fan 12 from sucking sundries when in operation, so that sundries are attached to the surfaces of the metal heat radiation fin 9 and the heat radiation oil pipe 8 to influence the heat radiation efficiency of the heat radiation, meanwhile, an inner protective net 14 with mesh density larger than that of the outer protective net 13 is arranged between the radiating fan 12 and the water delivery pipe 2, so that sundries sucked by the radiating fan 12 are further filtered, the outer protective net 13 and the inner protective net 14 are regularly cleaned, the maintenance frequency of the cooler is reduced, and the working efficiency of the cooler is increased.

As shown in fig. 1, in some embodiments, the inner protection net 14 penetrates through the surface of the housing 1 and is fixed by bolts, and the surface of the inner protection net 14 is provided with a pulling block 15; the surfaces of the inner protective net 14 and the shell 1 are fixed with the shell 1 through bolts, so that the firmness of the inner protective net 14 is improved, and meanwhile, the pulling blocks 15 are arranged on the surface of the inner protective net 14, so that the inner protective net 14 can be conveniently detached and installed when being cleaned.

As shown in fig. 1, in some embodiments, one end of the heat radiation oil pipe 8 is fixedly connected with an upper bundling box 16, an oil outlet 17 is arranged on the surface of the upper bundling box 16, the other end of the heat radiation oil pipe 8 is fixedly connected with a lower bundling box 18, and an oil inlet 19 is arranged on the surface of the lower bundling box 18; the two ends of the heat radiation oil pipe 8 are respectively connected with the upper bundling box 16 and the lower bundling box 18, and the oil outlet 17 and the oil inlet 19 are opened, so that the heat radiation oil pipe 8 can be conveniently connected with the transformer.

As shown in fig. 1, in some embodiments, the surface of the base 130 is provided with four fixing holes 20; the surface of the base 130 is provided with the fixing hole 20, so that the cooler is convenient to fix and prevented from accidentally falling.

As shown in fig. 2, in some embodiments, a supporting block 21 is fixed inside the housing 1, and the supporting block 21 is closely attached to the inner protective net 14; the inner protective net 14 is attached to the supporting blocks 21 by providing the supporting blocks 21 inside the housing 1, so that the stability of the inner protective net 14 is increased.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a transformer forced oil circulative cooling ware, includes casing (1), its characterized in that: the cooling device is characterized in that a water pipe (2) is fixed inside the shell (1), a water mist spray head (3) for cooling is fixed on the surface of the water pipe (2), the water pipe (2) penetrates through the surface of the shell (1), a water collecting pipe (4) is fixedly connected to one end of the water pipe (2), a base (130) is fixedly connected to the lower surface of the shell (1), a water pump (5) is fixedly connected to the surface of the base (130) through a bolt, the output end of the water pump (5) is connected with the water collecting pipe (4) through a hose (6), an oil pipe radiator (7) is fixedly connected to the surface of the shell (1), a heat radiating oil pipe (8) is arranged inside the oil pipe radiator (7), the heat radiating oil pipe (8) penetrates through the surface of the oil pipe radiator (7), and a metal radiating fin (9) is sleeved on the surface of the heat radiating oil pipe (8), the surface of casing (1) is provided with ventilation frame (10), the inner wall fixedly connected with bracing piece (11) of ventilation frame (10), the fixed surface of bracing piece (11) has radiator fan (12), the inner wall of ventilation frame (10) is fixed with outer protection network (13), the inside of casing (1) is inserted and is equipped with interior protection network (14).

2. The strong oil circulation cooler for the transformer according to claim 1, characterized in that: the inner protective net (14) penetrates through the surface of the shell (1) and is fixed with the shell (1) through bolts, and a pulling and holding block (15) is arranged on the surface of the inner protective net (14).

3. The strong oil circulation cooler for the transformer according to claim 1, characterized in that: one end of the heat dissipation oil pipe (8) is fixedly connected with an upper bundling box (16), an oil outlet (17) is formed in the surface of the upper bundling box (16), the other end of the heat dissipation oil pipe (8) is fixedly connected with a lower bundling box (18), and an oil inlet (19) is formed in the surface of the lower bundling box (18).

4. The strong oil circulation cooler for the transformer according to claim 1, characterized in that: the surface of the base (130) is provided with four fixing holes (20), and the number of the fixing holes (20) is four.

5. The strong oil circulation cooler for the transformer according to claim 1, characterized in that: the inner part of the shell (1) is fixedly provided with a supporting block (21), and the supporting block (21) is tightly attached to the inner protective net (14).