CN210325410U - On-load capacity-regulating power transformer - Google Patents

Abstract

The utility model discloses an on-load capacity-regulating power transformer, which comprises a power transformer shell, wherein an access window is arranged at the central position of the outer surface of the power transformer shell, the outer surfaces of two sides of the power transformer shell are fixedly provided with an oil tank body through fixing bolts, both sides of a bottom panel of the power transformer shell are fixedly provided with fixing seats, fixing plates are fixedly connected in the fixing seats through welding, a top sealing element is fixedly arranged on the upper surface of the top end of the power transformer shell, a plurality of evenly distributed low-voltage sleeves are fixedly arranged on the upper surface of the top sealing element through fixing bolts, a high-voltage sleeve is fixedly arranged between each two adjacent low-voltage sleeves, the access window is reserved at the central position outside the power transformer shell, when the internal structure of the power transformer breaks down, the internal structure of the power transformer, thereby need not to consume a large amount of manpowers and material resources, greatly reduced maintenance duration improves maintenance efficiency.

Description

On-load capacity-regulating power transformer

Technical Field

The utility model relates to a transformer technical field specifically is a have to carry and transfer appearance power transformer.

Background

The on-load capacity-regulating power transformer is a novel energy-saving power transformer, has two kinds of rated capacities, and can automatically convert the two kinds of rated capacity operation modes, solves the problem of large transformer loss caused by large seasonal load change amplitude of a power distribution network, and overcomes the operation maintenance problem caused by manually regulating the capacity when the no-load capacity-regulating transformer is powered off. The power transformer is suitable for rural power networks with large seasonal load change amplitude, and urban commercial areas, development areas, industrial areas and the like with remarkable day and night load change, however, when the existing on-load capacity-regulating power transformer is used, a large amount of heat can be produced by an internal circuit, so that heat accumulation is easily caused, the internal structure is damaged by heating after long-time use, and property loss is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an it holds power transformer to have to carry to transfer 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: the utility model provides a have to carry and transfer appearance power transformer, includes the power transformer casing, power transformer casing surface central point puts and has seted up the access panel, power transformer casing both sides surface has the oil tank body through fixing bolt fixed mounting, the equal fixed mounting in power transformer casing bottom panel both sides has the fixing base, be connected with the fixed plate through welding fixedly in the fixing base, fixed surface installs top seal spare on the power transformer casing top, fixed bolt fixed mounting has a plurality of evenly distributed's low pressure sleeve pipe, every is adjacent on the top seal spare upper surface fixed mounting has high-pressure bushing between the low pressure sleeve pipe, fixed surface installs cooling body on one side of the top seal spare, power transformer casing inside is encircleed and is provided with condenser tube.

Preferably, cooling body includes small-size cooling water tank, water filling port, delivery port, circulating water pump and inlet channel, small-size cooling water tank passes through fixing bolt fixed mounting in top seal spare upper surface, small-size cooling water tank top one side outer wall fixed mounting has the water filling port, small-size cooling water tank keeps away from high-tension bushing one side bottom outer wall fixed mounting and has the delivery port, the delivery port passes through pipeline fixedly connected with circulating water pump.

Preferably, the output end of the circulating water pump is fixedly connected with a water inlet pipeline through a connecting flange, and the tail end of the water inlet pipeline penetrates into the top sealing element and is fixedly connected with the cooling water pipe.

Preferably, the tail end of the cooling water pipe penetrates into the top sealing element and is fixedly connected with a circulating water inlet of the small cooling water tank.

Preferably, the access panel is made of steel materials and is fixedly connected with the power transformer shell through a fixing bolt.

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

1. through having the maintenance window in the outside central point of power transformer casing puts in advance, when this power transformer inner structure broke down, maintenance work can conveniently be carried out to power transformer inner structure through the maintenance window that sets up, thereby need not to consume a large amount of manpowers and material resources, greatly reduced maintenance time, improve maintenance efficiency, simultaneously through all being provided with the oil tank body in power transformer casing both sides, separately place through the on-load voltage regulation oil tank that sets up oil tank body and this transformer body, can effectually avoid producing electric arc in the operation, thereby reduce the influence to the insulating nature production of oil, through be provided with the fixed plate in power transformer casing bottom, can carry out fixed mounting to this power transformer through the fixed plate that sets up, high performance.

2. When this power transformer is inside to produce high temperature, can pour into ice water through the water filling port that small-size cooling water tank set up, be provided with the delivery port through on one side of small-size cooling water tank, the delivery port has circulating water pump through the pipe connection simultaneously, the ice water of pouring into can enter into circulating water pump through the delivery port, output through circulating water pump is connected with the inlet channel, circulating water pump can carry ice water to in inlet channel and the cooling water pipe, cooling water pipe encircles and sets up inside power transformer casing simultaneously, can take away partly heat when ice water is carrying, thereby reach radiating purpose, the small-size cooling water tank of tail end fixed connection of cooling water pipe simultaneously, thereby can reach ice water's cyclic utilization effect, reduce water resource waste, have better heat dissipation cooling performance simultaneously.

Drawings

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

FIG. 2 is a schematic view of the structure of the cooling water pipe of the present invention;

fig. 3 is an enlarged schematic view of the area a of the present invention.

In the figure: 1. a power transformer housing; 2. a cooling mechanism; 21. a small cooling water tank; 22. a water injection port; 23. a water outlet; 24. a water circulating pump; 25. a water inlet pipe; 3. an access panel; 4. an oil tank body; 5. a fixed seat; 6. a fixing plate; 7. a top seal; 8. a high voltage bushing; 9. a low-pressure bushing; 10. and cooling the water pipe.

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. 1-3, the present invention provides a technical solution: an on-load capacity-regulating power transformer comprises a power transformer shell 1, wherein an inspection window 3 is arranged at the center of the outer surface of the power transformer shell 1, when the internal structure of the power transformer breaks down, the internal structure of the power transformer can be conveniently inspected through the inspection window 3, so that the inspection work is not required to consume a large amount of manpower and material resources, the inspection time is greatly reduced, the inspection efficiency is improved, the outer surfaces of two sides of the power transformer shell 1 are fixedly provided with an oil tank body 4 through fixing bolts, two sides of a bottom end panel of the power transformer shell 1 are both fixedly provided with fixing seats 5, the fixing seats 5 are fixedly connected with fixing plates 6 through welding, the power transformer can be fixedly installed through the arranged fixing plates 6, the service performance is strong, the top end upper surface of the power transformer shell 1 is fixedly provided with a top sealing element 7, the upper surface of the top sealing element 7 is fixedly, a high-voltage bushing 8 is fixedly arranged between every two adjacent low-voltage bushings 9, a cooling mechanism 2 is fixedly arranged on the upper surface of one side of the top sealing element 7, and a cooling water pipe 10 is arranged inside the power transformer shell 1 in a surrounding mode.

The cooling mechanism 2 comprises a small cooling water tank 21 and a water filling port 22, delivery port 23, circulating water pump 24 and inlet channel 25, small-size coolant tank 21 passes through fixing bolt fixed mounting in 7 upper surfaces of top seal spare, 21 top one side outer wall fixed mounting of small-size coolant tank has water filling port 22, 8 one side bottom outer wall fixed mounting of high-pressure sleeve have delivery port 23 are kept away from to small-size coolant tank 21, delivery port 23 passes through pipeline fixedly connected with circulating water pump 24, connecting flange fixedly connected with inlet channel 25 is passed through to circulating water pump 24's output, 25 tail ends of inlet channel penetrate in top seal spare 7 with condenser tube 10 fixed connection, 10 tail ends of condenser tube penetrate in top seal spare 7 and with small-size coolant tank 21's circulation water inlet fixed connection, access panel 3 is made for steel material, and access panel 3 passes through fixing bolt and 1 fixed connection of power transformer casing.

When in use, the maintenance window 3 is reserved at the central position outside the power transformer shell 1, when the internal structure of the power transformer breaks down, the maintenance work of the internal structure of the power transformer can be conveniently carried out through the maintenance window 3, thereby saving a large amount of manpower and material resources, greatly reducing the maintenance time and improving the maintenance efficiency, meanwhile, the oil tank bodies 4 are arranged at both sides of the power transformer shell 1, the electric arc generated in the operation can be effectively avoided by separately arranging the oil tank bodies 4 and the on-load voltage regulating oil tank of the transformer body, thereby reducing the influence on the insulativity of oil, the fixing plate 6 is arranged at the bottom of the power transformer shell 1, the power transformer can be fixedly installed through the arranged fixing plate 6, the service performance is strong, when high temperature is generated inside the power transformer, ice water can be injected through the water injection port 22 arranged on the small cooling water tank 21, through being provided with delivery port 23 in small-size cooling water tank 21 one side, delivery port 23 has circulating water pump 24 through the pipe connection simultaneously, the frozen water of pouring into can enter into circulating water pump 24 through delivery port 23 in, output through circulating water pump 24 is connected with inlet channel 25, circulating water pump 24 can carry frozen water to inlet channel 25 and cooling water pipe 10 in, condenser tube 10 encircles and sets up inside power transformer casing 1 simultaneously, can take away partly heat when frozen water is carrying, thereby reach radiating purpose, the small-size cooling water tank 21 of tail end fixed connection of condenser tube 10 simultaneously, thereby can reach frozen water's cyclic use effect, reduce water resource waste, have better heat dissipation cooling performance simultaneously.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", 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 simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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 (5)

1. An on-load capacity-regulating power transformer is characterized by comprising a power transformer shell (1), wherein an access window (3) is arranged in the center of the outer surface of the power transformer shell (1), an oil tank body (4) is fixedly arranged on the outer surfaces of two sides of the power transformer shell (1) through fixing bolts, fixing seats (5) are fixedly arranged on two sides of a bottom end panel of the power transformer shell (1), fixing plates (6) are fixedly connected in the fixing seats (5) through welding, a top sealing element (7) is fixedly arranged on the upper surface of the top end of the power transformer shell (1), a plurality of uniformly-distributed low-voltage sleeves (9) are fixedly arranged on the upper surface of the top sealing element (7) through fixing bolts, a high-voltage sleeve (8) is fixedly arranged between every two adjacent low-voltage sleeves (9), and a cooling mechanism (2) is fixedly arranged on the upper surface of, and a cooling water pipe (10) is arranged in the power transformer shell (1) in a surrounding manner.

2. An on-load capacitance regulating power transformer according to claim 1, characterised in that: cooling body (2) are including small-size cooling water tank (21), water filling port (22), delivery port (23), circulating water pump (24) and inlet channel (25), small-size cooling water tank (21) are through fixing bolt fixed mounting in top sealing member (7) upper surface, small-size cooling water tank (21) top one side outer wall fixed mounting has water filling port (22), small-size cooling water tank (21) are kept away from high-pressure bushing (8) one side bottom outer wall fixed mounting and are had delivery port (23), delivery port (23) are through pipeline fixedly connected with circulating water pump (24).

3. An on-load capacitance regulating power transformer according to claim 2, characterised in that: the output end of the circulating water pump (24) is fixedly connected with a water inlet pipeline (25) through a connecting flange, and the tail end of the water inlet pipeline (25) penetrates into the top sealing element (7) and is fixedly connected with the cooling water pipe (10).

4. An on-load capacitance regulating power transformer according to claim 1, characterised in that: the tail end of the cooling water pipe (10) penetrates into the top sealing element (7) and is fixedly connected with a circulating water inlet of the small cooling water tank (21).

5. An on-load capacitance regulating power transformer according to claim 1, characterised in that: the maintenance window (3) is made of steel materials, and the maintenance window (3) is fixedly connected with the power transformer shell (1) through a fixing bolt.

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