CN215417777U

CN215417777U - Large-scale power transformer cooling device

Info

Publication number: CN215417777U
Application number: CN202121231228.3U
Authority: CN
Inventors: 占锐
Original assignee: Beijing Yusheng New Energy Technology Co ltd
Current assignee: Beijing Yusheng New Energy Technology Co ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2022-01-04
Anticipated expiration: 2031-06-01

Abstract

The utility model discloses a cooling device of a large-scale power transformer, which comprises a shell, a case, a cooling pipe body, a semiconductor refrigerant, a cooling tank, a transformer and a high-voltage sleeve, wherein a base is welded on the lower surface of the shell, a supporting rod is welded on the lower surface of the base, an oil tank is welded on the outer end surface of one side of the shell, the transformer is embedded and fixed in the shell, a fixing plate is welded on the upper surface of the shell, the high-voltage sleeve is fixed on the upper surface of the fixing plate, the cooling tank is embedded and fixed between the shell and the transformer, the cooling pipe body is embedded and fixed in the cooling tank, the semiconductor refrigerant is embedded and fixed on the inner wall of the cooling pipe body, a water inlet pipe penetrating through the cooling tank and the shell is communicated with the rear surface of the cooling pipe body, a first valve is connected on the outer surface of the water inlet pipe in a threaded manner, the case is welded on the outer end surface of one side of the transformer, the inner wall of the transformer is rotatably connected with a fan. The utility model has better cooling effect.

Description

Large-scale power transformer cooling device

Technical Field

The utility model relates to the technical field of power transformers, in particular to a cooling device for a large power transformer.

Background

A power transformer is a stationary electrical device that is used to transform an ac voltage (current) of a certain value into another voltage (current) of the same frequency or different values. Power transformers are one of the main devices of power plants and substations.

For a small-capacity transformer, the ratio of the external surface area to the volume of the transformer is relatively large, and heat can be dissipated by radiation and natural convection in a self-cooling mode. The self-cooling method is suitable for indoor small-sized transformers, and dry type transformers without oil immersion are generally adopted for preventing fire. Since the loss of the transformer is proportional to the volume of the transformer, the volume and the loss of the transformer increase by the cubic power of the size of the iron core along with the increase of the capacity of the transformer, and the external surface area only increases by the quadratic power of the size, so that the large-scale power transformer is cooled by an oil-immersed self-cooling mode, and the cooling effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cooling device for a large power transformer, which has the advantage of better cooling effect, solves the problem that a self-cooling mode is suitable for indoor small transformers, and generally adopts a dry type without oil immersion for preventing fire. The loss of the transformer is proportional to the volume, so that the volume and the loss of the transformer are increased by the cubic power of the size of the iron core along with the increase of the capacity of the transformer, and the external surface area is only increased by the quadratic power of the size, so that the large-scale power transformer is cooled by adopting an oil-immersed self-cooling mode, and the cooling effect is poor.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a large-scale power transformer cooling device, includes shell, quick-witted case, cooling tube body, semiconductor refrigerant, cooler bin, transformer and high-voltage bushing, the outer terminal surface welding in one side of shell has the oil tank, and the inside embedding of shell is fixed with the transformer, the cooler bin embedding is fixed between shell and transformer, and the inside embedding of cooler bin is fixed with the cooling tube body, the inner wall embedding of cooling tube body is fixed with the semiconductor refrigerant, the outer terminal surface in one side of transformer is welded to the machine case, the inner wall rotation of transformer is connected with the fan.

Preferably, the lower surface of the shell is welded with the base, and the lower surface of the base is welded with the supporting rod.

Preferably, the upper surface of the housing is welded with a fixing plate, and the upper surface of the fixing plate is fixed with a high-voltage bushing.

Preferably, the outer end face of one side of the case is rotatably connected with a rotating rod, and the rotating rod is fixed with the fan.

Preferably, the rear surface of the cooling pipe body is communicated with a water inlet pipe penetrating through the cooling box and the shell, and the outer surface of the water inlet pipe is in threaded connection with a first valve.

Preferably, the rear surface of the cooling pipe body is communicated with a water outlet pipe penetrating through the cooling box and the shell, and the outer surface of the water outlet pipe is in threaded connection with a second valve.

Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the cooling box, the cooling pipe body, the case and the fan are arranged, so that a better cooling effect is achieved, the first valve is opened, water is sent into the cooling pipe body through the water inlet pipe, the semiconductor refrigerant cools the water under the action of the power device, the low-temperature water circularly flows in the cooling pipe body, the second valve is opened, the water flows out through the water outlet pipe, the water circularly flows in such a way, so that the transformer is conveniently cooled, the case drives the rotating rod to rotate under the action of the power device, the rotating rod drives the fan to rotate, the fan can accelerate the cooling of the transformer, and the cooling effect is better.

Drawings

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

FIG. 2 is a front sectional structural view of the present invention;

fig. 3 is a rear view structural diagram of the present invention.

In the figure: 1. an oil tank; 2. a base; 3. a support bar; 4. a fixing plate; 5. a housing; 6. a chassis; 7. a fan; 8. a cooling tube body; 9. a semiconductor refrigerant; 10. a cooling tank; 11. a transformer; 12. rotating the rod; 13. a water inlet pipe; 14. a high voltage bushing; 15. and (5) discharging a water pipe.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element 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, such as "connected," which may be fixedly connected, 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, an embodiment of the present invention includes: the utility model provides a large-scale power transformer cooling device, includes shell 5, quick-witted case 6, cooling tube body 8, semiconductor refrigerant 9, cooler bin 10, transformer 11 and high-tension bushing 14, the lower skin weld of shell 5 has base 2, and the lower skin weld of base 2 has bracing piece 3, the outer end face weld of one side of shell 5 has oil tank 1, and the inside embedding of shell 5 is fixed with transformer 11, the last skin weld of shell 5 has fixed plate 4, and the last fixed surface of fixed plate 4 has high-tension bushing 14.

The embedding of cooler bin 10 is fixed between shell 5 and transformer 11, and the inside embedding of cooler bin 10 is fixed with cooling tube body 8, the inner wall embedding of cooling tube body 8 is fixed with semiconductor refrigerant 9, the rear surface intercommunication of cooling tube body 8 has the inlet tube 13 that runs through cooler bin 10 and shell 5, and the surface threaded connection of inlet tube 13 has first valve, the rear surface intercommunication of cooling tube body 8 has the outlet pipe 15 that runs through cooler bin 10 and shell 5, and the surface threaded connection of outlet pipe 15 has the second valve, open first valve, send water into inside the cooling tube body 8 through inlet tube 13, semiconductor refrigerant 9 is the cooling water under power device's effect, low-temperature water is at the inside circulation of cooling tube body 8, open the second valve, water flows through outlet pipe 15, so circulation flows, be convenient for cool down transformer 11.

Case 6 welds the outer terminal surface in one side of transformer 11, and the inner wall of transformer 11 rotates and is connected with fan 7, and the outer terminal surface in one side of case 6 rotates and is connected with dwang 12, and dwang 12 is fixed with fan 7, and case 6 drives dwang 12 and rotates under power device's effect, and dwang 12 drives fan 7 and rotates, and transformer 11's cooling can be accelerated to fan 7, and the cooling effect is better.

Of course, as is well known to those skilled in the art, the cabinet 6, the cooling tube body 8, the semiconductor refrigerant 9 and the transformer 11 of the present invention also need to provide a power device to enable the normal operation thereof, and as is well known to those skilled in the art, the provision of the power is common practice, which belongs to the conventional means or common knowledge, and will not be described herein, and any selection and matching can be made by those skilled in the art according to the needs or convenience thereof.

The working principle is as follows: open first valve, send into 8 insides of cooling tube body with water through inlet tube 13, semiconductor refrigerant 9 is the cooling water under power device's effect, low temperature water flows at 8 internal cycle of cooling tube body, open the second valve, water flows through outlet pipe 15, so circulation flow, be convenient for cool off transformer 11, quick-witted case 6 drives dwang 12 under power device's effect and rotates, dwang 12 drives fan 7 and rotates, transformer 11's cooling can be accelerated to fan 7, the cooling effect is better.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a large-scale power transformer cooling device, includes shell (5), quick-witted case (6), cooling tube body (8), semiconductor refrigerant (9), cooler bin (10), transformer (11) and high-tension bushing (14), its characterized in that: the outer terminal surface welding of one side of shell (5) has oil tank (1), and the inside embedding of shell (5) is fixed with transformer (11), cooler bin (10) embedding is fixed between shell (5) and transformer (11), and the inside embedding of cooler bin (10) is fixed with cooling tube body (8), the inner wall embedding of cooling tube body (8) is fixed with semiconductor refrigerant (9), machine case (6) welding is at the outer terminal surface of one side of transformer (11), the inner wall rotation of transformer (11) is connected with fan (7).

2. A large power transformer cooling arrangement according to claim 1, characterized by: the lower surface welding of shell (5) has base (2), and the lower surface welding of base (2) has bracing piece (3).

3. A large power transformer cooling arrangement according to claim 1, characterized by: the upper surface welding of shell (5) has fixed plate (4), and the upper surface of fixed plate (4) is fixed with high-voltage bushing (14).

4. A large power transformer cooling arrangement according to claim 1, characterized by: the outer end face of one side of machine case (6) rotates and is connected with dwang (12), and dwang (12) and fan (7) are fixed.

5. A large power transformer cooling arrangement according to claim 1, characterized by: the rear surface of cooling tube body (8) intercommunication has inlet tube (13) of running through cooler bin (10) and shell (5), and the surface threaded connection of inlet tube (13) has first valve.

6. A large power transformer cooling arrangement according to claim 1, characterized by: the rear surface of the cooling pipe body (8) is communicated with a water outlet pipe (15) penetrating through the cooling box (10) and the shell (5), and the outer surface of the water outlet pipe (15) is in threaded connection with a second valve.