CN114334379A

CN114334379A - Oil-immersed transformer oil supplementing device

Info

Publication number: CN114334379A
Application number: CN202111546355.7A
Authority: CN
Inventors: 张兆平
Original assignee: Xuzhou Guoli Electric Power Equipment Co ltd
Current assignee: Xuzhou Guoli Electric Power Equipment Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-04-12

Abstract

The invention discloses an oil-immersed transformer oil supplementing device which comprises a transformer body, wherein an oil supplementing system is installed on the transformer body, an oil conservator, an oil pipeline, an oil body purifier and an oil tank are sequentially arranged in the oil supplementing system according to the process of flowing oil bodies, the oil conservator is installed at the upper left corner of the transformer body, the surface of the oil conservator is provided with a cooling outer cover mechanism, the end part of the oil conservator is connected with the oil body purifier through the oil pipeline, the oil body purifier and the oil tank are both provided with the lower right corner of the transformer body, one end of the oil body purifier is connected with the oil conservator through the oil pipeline, and the other end of the oil body purifier is connected with the oil tank through the oil pipeline. The self-adaptive inner container is designed in the oil conservator, self-adaptive adjustment can be carried out according to the volume of an oil body, the safety of the oil conservator is improved, the oil conservator is guided into the oil tank through the oil pipe to be subjected to supplementary treatment, the oil body is subjected to purification and pollution discharge treatment through the oil body purifier arranged at the joint of the oil pipe and the oil tank, and the heat dissipation effect of the device is prevented from being influenced by attachments and oil dirt in the pipeline.

Description

Oil-immersed transformer oil supplementing device

Technical Field

The invention relates to the technical field of oil-immersed transformers, in particular to an oil supplementing device of an oil-immersed transformer.

Background

Distribution transformers are one of the important devices in industrial and mining enterprises and civil building power supply and distribution systems, and reduce the voltage of a 10(6) kV or 35kV network to 230/400V bus voltage used by users. The product is suitable for alternating current of 50(60) Hz and three-phase maximum rated capacity of 2500kVA (single-phase maximum rated capacity 833kVA, a single-phase transformer is not generally recommended), can be used indoors or outdoors, can be arranged on a pole when the capacity is 315kVA or below, and has the environment temperature of not higher than 40 ℃, not lower than-25 ℃, the maximum daily average temperature of 30 ℃, the maximum annual average temperature of 20 ℃, the relative humidity of not more than 90% (environment temperature of 25 ℃) and the altitude of not more than 1000 m. If the operating conditions do not meet the above-mentioned requirements, the rated power should be adjusted appropriately according to the regulations of GB6450-86, and the types of transformers are various, including oil-immersed transformers, which include an oil storage system, and the purpose of dissipating heat from the transformer can be achieved by oil circulation of the internal oil storage system.

However, the conventional oil-filled transformer has the following problems in the use process: (1) impurities can exist in the oil body of the oil-immersed transformer in the long-time use process, the heat dissipation effect of the oil body is influenced, and a corresponding purification mechanism is lacked; (2) a conservator mechanism for carrying out benefit oil to oil-immersed transformer, self receive the thermal influence of transformer fuselage easily, and lead to mending oil inaccurate, influence the operation effect of oil body. For this reason, a corresponding technical scheme needs to be designed to solve the existing technical problems.

Disclosure of Invention

The invention aims to provide an oil-immersed transformer oil supplementing device, which solves the technical problems that impurities exist in an oil body of an oil-immersed transformer in the long-time use process, the heat dissipation effect of the oil body is influenced, and a corresponding purification mechanism is lacked.

In order to achieve the purpose, the invention provides the following technical scheme: the oil supplementing device of the oil immersed transformer comprises a transformer body, wherein an oil supplementing system is installed on the transformer body, an oil conservator, an oil pipeline, an oil body purifier and an oil tank are sequentially arranged in the oil supplementing system according to the flowing process of oil bodies, the oil conservator is installed at the upper left corner of the transformer body, the surface of the oil conservator is provided with a cooling outer cover mechanism, the end part of the oil conservator is connected with the oil body purifier through the oil pipeline, the lower right corner of the transformer body is installed on the oil body purifier and the oil tank, one end of the oil body purifier is connected with the oil conservator through the oil pipeline, the other end of the oil body purifier is connected with the oil tank through the oil pipeline, the oil body purifier consists of a machine body shell, an oil purifying roller, a driving mechanism, an oil feeding pipeline and an oil discharging pipeline, the two ends of the oil purifying roller are rotatably installed on the inner wall of the machine body shell, the driving mechanism is installed in the middle of the oil purifying roller, oil feeding pipeline and oil pipe way down install respectively in engine body shell's both sides and surface mounting have the valve, on have pipeline, oil pipe way down and engine body shell's junction all to install the oil pump, the upper end of oil tank is connected with the conservator through oil pipeline.

As a preferred embodiment of the present invention, the conservator includes a capsule container and support frames symmetrically installed at two ends of the capsule container, the capsule container is a double-layer structure and includes an outer cylinder and an inner cylinder in sequence from outside to inside, an expansion cavity is formed between the outer cover and the inner cylinder, a shaping strip is disposed in the expansion cavity, and the inner side of the shaping strip is connected with the inner cylinder.

As a preferred embodiment of the present invention, the shaping strip is made of an elastic metal material and is formed into a corrugated structure, and a plurality of sets of concave surfaces and convex surfaces are formed on the surface of the shaping strip, and the concave surfaces and the convex surfaces are distributed at intervals.

As a preferred embodiment of the present invention, the cooling enclosure mechanism includes a plurality of groups of cooling pipes wound around the periphery of the conservator and a gauze disposed between two adjacent groups of cooling pipes, the plurality of groups of cooling pipes are communicated with each other, one group of cooling pipes is connected to a cooling tray through a liquid transfer pipe, one side of the cooling tray is provided with an air blower, and the air blower is mounted on the top of the transformer body.

In a preferred embodiment of the present invention, the oil cleaning roller includes a main roller and a plurality of sets of blades uniformly mounted on a surface of the main roller, the surface of the main roller is uniformly provided with a plurality of sets of inlet openings and a guide cavity, lower edges of the plurality of sets of blades are connected with the inlet openings and are spirally arranged, and the guide cavity is internally provided with a dirt pushing mechanism.

As a preferred embodiment of the present invention, the vane is of a cambered surface structure, and has a flow channel formed therein, and one side of the vane is uniformly provided with a plurality of groups of dirt inlets, and the other side of the vane is sealed.

In a preferred embodiment of the present invention, the dirt pushing mechanism includes an electric push rod disposed inside the main roller and a piston mounted on a power output end of the electric push rod, and the piston is slidably disposed inside the main roller.

As a preferred embodiment of the present invention, the driving mechanism includes a driven gear installed in the middle of the main roller and a transmission gear engaged with the driven gear, a driving gear is engaged and connected above the transmission gear, a driving motor is disposed on one side of the driving gear, and a power output end of the driving motor is connected with the driving gear.

Compared with the prior art, the invention has the following beneficial effects:

1. the oil-filled device of the oil-immersed transformer is provided with the special oil-filled system, the oil-filled system comprises the self-expansion type oil conservator, the oil tank and the oil body purifier, the self-adaptive inner container is designed in the self-expansion type oil conservator, self-adaptive adjustment can be carried out according to the volume of an oil body, the safety of the oil conservator is improved, the oil conservator is guided into the oil tank through the oil pipe to be subjected to supplement treatment, in addition, the oil body purifier at the connection part of the oil pipe and the oil tank is arranged to carry out efficient purification and pollution discharge treatment on the oil body, and the heat dissipation effect of the device is prevented from being influenced by attachments and oil dirt in the pipeline.

2. The oil body purifier designed by the invention can carry out rotary filtration on the introduced oil body and introduce the oil body into the main cylinder at the middle part, and an extrusion mechanism in the main cylinder is utilized to guide dirt out, thereby achieving the self-purification capability of the oil body.

Drawings

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is a cross-sectional view of the conservator of the present invention;

FIG. 3 is a block diagram of the oil purifier according to the present invention;

FIG. 4 is a cross-sectional view of the main roll of the present invention;

fig. 5 is a view of the blade structure of the present invention.

In the figure, 1, a transformer body; 2. an oil conservator; 3. an oil pipeline; 4. an oil body purifier; 5. an oil tank; 6. a cooling housing mechanism; 7. a body housing; 8. an oil cleaning roller; 9. a drive mechanism; 10. oiling a pipeline; 11. an oil discharge pipeline; 12. a valve; 13. an oil pump; 14. a capsule container; 15. a support frame; 16. an outer cylinder; 17. an inner container; 18. an inflation lumen; 19. shaping strips; 20. a concave surface; 21. a convex surface; 22. a cooling tube; 23. a screen; 24. a cooling pan; 25. a blower; 26. a main roller; 27. a blade; 28. an inlet port; 29. a guide lumen; 30. a flow channel; 31. a sewage inlet hole; 32. an electric push rod; 33. a piston; 34. a driven gear; 35. a transmission gear; 36. a drive gear; 37. the motor is driven.

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.

Example 1: referring to fig. 1-5, the present invention provides a technical solution: an oil-immersed transformer oil supplementing device comprises a transformer body 1, wherein an oil supplementing system is installed on the transformer body 1, the oil supplementing system is sequentially provided with an oil conservator 2, an oil pipeline 3, an oil purifier 4 and an oil tank 5 according to the process of flowing oil, the oil conservator 2 is installed at the upper left corner of the transformer body 1, the surface of the oil conservator 2 is provided with a cooling outer cover mechanism 6, the end part of the oil conservator 2 is connected with the oil purifier 4 through the oil pipeline 3, the oil purifier 4 and the oil tank 5 are both provided with the lower right corner of the transformer body 1, one end of the oil purifier 4 is connected with the oil conservator 2 through the oil pipeline 3, the other end of the oil purifier is connected with the oil tank 5 through the oil pipeline 3, the oil purifier 4 consists of a machine body shell 7, an oil purifying roller 8, a driving mechanism 9, an oil applying pipeline 10 and a lower oil pipeline 11, the two ends of the oil purifying roller 8 are rotatably installed on the inner wall of the machine body shell 7, the driving mechanism 9 is installed in the middle of the oil purifying roller 8, the upper oil pipeline 10 and the lower oil pipeline 11 are respectively installed on two sides of the engine body shell 7, the surface of the upper oil pipeline and the surface of the lower oil pipeline are provided with valves 12, oil pumps 13 are installed at the joints of the upper oil pipeline, the lower oil pipeline 11 and the engine body shell 7, and the upper end of the oil tank 5 is connected with the oil conservator 2 through the oil pipeline 3.

In embodiment 2, as shown in fig. 2, the technical solution of this embodiment is an oil conservator 2 installed on the transformer body 1, the oil conservator 2 includes a capsule container 14 and support frames 15 symmetrically installed at two ends of the capsule container 14, the capsule container 14 is a double-layer structure and includes an outer cylinder 16 and an inner container 17 in sequence from outside to inside, an expansion cavity 18 is formed between the outer cylinder 16 and the inner container 17, a shaping strip 19 is installed in the expansion cavity 18, and the inner side of the shaping strip 19 is connected with the inner container 17.

The shaping strip 19 is made of elastic metal materials and is processed and formed into a corrugated structure, a plurality of groups of concave surfaces 20 and convex surfaces 21 are formed on the surface of the shaping strip 19, the concave surfaces 20 and the convex surfaces 21 are distributed at intervals, and the corrugated structure of the shaping strip 19 can be adjusted in a self-adaptive mode.

Embodiment 3, as shown in fig. 2, the technical solution of this embodiment is a cooling outer cover mechanism 6 installed on the conservator 2, the cooling outer cover mechanism 6 includes a plurality of groups of cooling pipes 22 wound around the periphery of the conservator 2 and a gauze 23 arranged between two adjacent groups of cooling pipes 22, the plurality of groups of cooling pipes 22 are communicated with each other, one group of cooling pipes 22 is connected with a cooling tray 24 through a liquid transport pipe, one side of the cooling tray 24 is provided with an air blower 25, the air blower 25 is installed on the top of the transformer body 1, and the cooling pipes 22 are internally provided with liquid water to cool the conservator 2.

Embodiment 4, as shown in fig. 3, the oil cleaning roller 8 of this embodiment is installed on the transformer body 1, the oil cleaning roller 8 includes a main roller 26 and a plurality of sets of blades 27 uniformly installed on the surface of the main roller 26, a plurality of sets of inlets 28 are uniformly opened on the surface of the main roller 26, a guide cavity 29 is opened inside the main roller, the lower edges of the plurality of sets of blades 27 are connected with the inlets 28 and are spirally disposed, a dirt pushing mechanism is disposed inside the guide cavity 29, and the oil cleaning roller 8 is designed to filter the oil dirt in the housing 7.

Supplementary note 1: one end of the main roller 26 is provided with a servo motor.

Blade 27 is arc surface structure and inside has seted up runner 30, and a plurality of groups have evenly been seted up to one side of blade 27 and have advanced dirty hole 31 and the opposite side for sealed form, and such design is convenient for the oil body to enter into runner 30 and utilizes and advance dirty hole 31 and carry out filtration treatment with the dirt in the oil body.

In embodiment 5, as shown in fig. 4, the technical solution of this embodiment is a dirt pushing mechanism installed on the transformer body 1, the dirt pushing mechanism includes an electric push rod 32 built in the main roller 26 and a piston 33 installed at a power output end of the electric push rod 32, the piston 33 is slidably installed in the main roller 26, and the electric push rod 32 pushes the piston 33 to reciprocate, so that the entered dirt is guided out by the piston 33.

Supplementary note 2: the end of the main roller 26 is connected with a dirt storage box through a pipeline.

Specifically, the driving mechanism 9 includes a driven gear 34 mounted in the middle of the main roller 26 and a transmission gear 35 engaged with the driven gear 34, a driving gear 36 is engaged with the upper portion of the transmission gear 35, a driving motor 37 is disposed on one side of the driving gear 36, a power output end of the driving motor 37 is connected with the driving gear 36, the driving gear 36 is driven to rotate by the driving motor 37, the driving gear 36 drives the transmission gear 35 and the driven gear 34 to synchronously rotate in the rotating process, and the driven gear 34 drives the main roller 26 to rotate, so that the blades 27 filter dirt in the oil body in the rotating process.

When in use: when the oil body in the oil tank 5 is insufficient, the oil conservator 2 conveys the oil body into the oil body purifier 4 through the oil pipeline 3, the oil body entering the machine body shell 7 filters the oil body through the rotation of the oil purifying roller 8, the servo motor drives the main roller 26 to rotate, the main roller 26 overturns the oil body by the blade 27 in the rotating process, the oil body is guided into the flow channel 30 in the overturning process and is filtered by the dirt inlet hole 31, the filtered oil body is guided out again through the dirt inlet hole 31 and is guided into the oil tank 5 by the oil pipeline 10, and after the oil body in the machine body shell 7 is extracted, the electric push rod 32 pushes the piston 33 to reciprocate, so that the piston 33 conducts the entered dirt outwards.

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 invention. 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 an oil immersion type transformer mends oily device, includes transformer body (1), its characterized in that: install on transformer body (1) and mend oily system, mend oily system and set gradually conservator (2), oil pipeline (3), oil body clarifier (4) and oil tank (5) according to the process that the oil body flows through, install in the upper left corner of transformer body (1) and surface mounting in conservator (2) and cooling housing mechanism (6), the tip of conservator (2) is connected with oil body clarifier (4) through oil pipeline (3), the lower right corner of transformer body (1) is all installed to oil body clarifier (4) and oil tank (5), the one end of oil body clarifier (4) is connected and the other end is connected with oil tank (5) through oil pipeline (3) and conservator (2), oil body clarifier (4) are by body shell (7), clean oil roller (8), actuating mechanism (9), Oil pipe way (10) and lower oil pipe way (11) are constituteed, the both ends of oil purification roller (8) are rotated and are installed on the inner wall of engine body shell (7), actuating mechanism (9) are installed in the middle part of oil purification roller (8), oil pipe way (10) and lower oil pipe way (11) are installed respectively in the both sides of engine body shell (7) and surface mounting have valve (12), on have pipeline, lower oil pipe way (11) and the junction of engine body shell (7) all install oil pump (13), the upper end of oil tank (5) is connected with conservator (2) through oil pipeline (3).

2. The oil filling device of the oil-immersed transformer of claim 1, wherein: the conservator (2) includes that capsule container (14) and symmetry install in support frame (15) at capsule container (14) both ends, capsule container (14) are bilayer structure and are urceolus (16) and inner bag (17) from outside to inside in proper order, be formed with inflation chamber way (18) between urceolus (16) and inner bag (17), inflation chamber way (18) embeds there is moulding strip (19), the inboard of moulding strip (19) is connected with inner bag (17).

3. The oil filling device of the oil-immersed transformer according to claim 2, wherein: moulding strip (19) adopt elastic metal material and machine-shaping for corrugated structure, the surface of moulding strip (19) is formed with a plurality of sets of concave surface (20) and convex surface (21), concave surface (20) and convex surface (21) alternate distribution.

4. The oil filling device of the oil-immersed transformer according to claim 2, wherein: the cooling outer cover mechanism (6) comprises a plurality of groups of cooling pipes (22) wound on the periphery of the oil conservator (2) and gauze (23) arranged between the adjacent two groups of cooling pipes (22), and a plurality of groups of cooling pipes (22) are communicated and one of the groups of cooling pipes (22) is connected with a cooling disc (24) through a liquid conveying pipe, one side of the cooling disc (24) is provided with an air blower (25), and the air blower (25) is installed at the top of the transformer body (1).

5. The oil filling device of the oil-immersed transformer of claim 1, wherein: the oil purification roller (8) comprises a main roller (26) and a plurality of groups of blades (27) which are uniformly arranged on the surface of the main roller (26), wherein a plurality of groups of leading-in ports (28) are uniformly formed in the surface of the main roller (26), a guide inner cavity (29) is formed in the surface of the main roller, the lower edges of the blades (27) are connected with the leading-in ports (28) and are arranged spirally, and a dirt pushing mechanism is arranged in the guide inner cavity (29).

6. The oil filling device of an oil-filled transformer according to claim 5, wherein: the blade (27) is of a cambered surface structure, a flow channel (30) is formed in the blade, a plurality of groups of dirt inlet holes (31) are uniformly formed in one side of the blade (27), and the other side of the blade is sealed.

7. The oil filling device of an oil-filled transformer according to claim 5, wherein: the dirt pushing mechanism comprises an electric push rod (32) arranged inside the main roller (26) and a piston (33) arranged at the power output end of the electric push rod (32), and the piston (33) is arranged inside the main roller (26) in a sliding mode.

8. The oil filling device of an oil-filled transformer according to claim 7, wherein: the driving mechanism (9) comprises a driven gear (34) arranged in the middle of the main roller (26) and a transmission gear (35) meshed with the driven gear (34), a driving gear (36) is meshed and connected with the upper portion of the transmission gear (35), a driving motor (37) is arranged on one side of the driving gear (36), and the power output end of the driving motor (37) is connected with the driving gear (36).