CN220357956U

CN220357956U - Drying device for power transformer winding

Info

Publication number: CN220357956U
Application number: CN202320494368.2U
Authority: CN
Inventors: 周年红; 吴志坚; 杨宏
Original assignee: Guangchang Zhongguang Innovation Electronic Technology Co ltd
Current assignee: Guangchang Zhongguang Innovation Electronic Technology Co ltd
Priority date: 2023-03-15
Filing date: 2023-03-15
Publication date: 2024-01-16
Anticipated expiration: 2033-03-15

Abstract

The utility model discloses a drying device for a power transformer winding, which comprises a drying box and a base, wherein a conveying outer ring is fixedly arranged on the surface of the top end inside the drying box. According to the utility model, the inner driving ring and the wind shield are adopted, in the actual use process, the hot air pipe can be driven to continuously rotate around the winding by driving the inner driving ring to rotate, and hot air is uniformly sprayed on the surface position of the winding, so that the winding can be heated more uniformly, the heated area is greatly improved, the probability of occurrence of a heated dead angle is reduced, meanwhile, the hot air sprayed by the air spray head is influenced by the wind shield after being sprayed, and can be flushed to the back surface of the winding again along the arc-shaped surface, the acting area of the hot air is increased again, the winding can receive heat in all directions, the moisture in the winding can be removed more thoroughly, the drying efficiency can be effectively improved by heating in a large area, the operation duration is reduced, and the air drying device has the advantages of good drying effect, comprehensive heating and high drying efficiency.

Description

Drying device for power transformer winding

Technical Field

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

Background

The transformer winding refers to a circuit part of a transformer, is formed by winding copper wires or aluminum wires with higher conductivity, is applied to a power system, and has enough insulation strength, mechanical strength and heat resistance, and the winding is used for improving the insulation performance and the service life of the transformer, and the moisture in the insulation material in the winding is required to be discharged, so that the insulation material is dried to improve the insulation performance.

The prior art has the following publication numbers: CN214406829U a power transformer winding drying treatment equipment, including box, first mounting panel and second mounting panel, fixed elevating system and the fixed connecting pipe that is equipped with through elevating system between the upper surface of first mounting panel and second mounting panel, four tuber pipes have been cup jointed respectively to the upside tube wall of connecting pipe fixedly, four exhaust columns have been cup jointed respectively to the upper wall of box fixedly, the upper and lower both sides of the right lateral wall of box are fixed respectively and are equipped with air exhauster and air heater, the exhaust port and the air outlet of air exhauster are all fixed and are equipped with first tuber pipe, the exhaust port and the air outlet of air heater are all fixed and are equipped with the second tuber pipe, the downside the lower extreme of first tuber pipe with the upside fixedly is equipped with drying mechanism between the upper end of second tuber pipe. The utility model can heat a plurality of windings at the same time, increases the heated area and improves the drying treatment speed.

However, the existing drying device has a limited drying area, and most of the existing drying device is used for heating and drying in a single direction of the winding, so that the drying effect of the part of the opposite position on the back surface is not good, long time is required for drying, the part of the opposite position on the hot air outlet is influenced by hot air for a long time, the part of the opposite position is easy to be damaged, and the whole drying effect is not ideal.

For the problems in the related art, no effective solution has been proposed at present.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a drying device for a power transformer winding, which has the advantages of good drying effect, comprehensive heating and high drying efficiency, and further solves the problems in the prior art.

(II) technical scheme

In order to realize the advantages of good drying effect, comprehensive heating and high drying efficiency, the utility model adopts the following specific technical scheme:

the utility model provides a power transformer winding drying device, includes drying cabinet and base, the inside top surface position fixed mounting of drying cabinet has the transportation outer loop, the inside cover of transportation outer loop has put the drive inner loop, drive inner loop one end runs through drying cabinet one side and is connected with the motor, drive inner loop and the inside position of transportation outer loop all are equipped with the passageway that a plurality of sets of air supply gas circulation used, a plurality of groups hot-blast main are evenly encircleed to drive inner loop bottom surface position, hot-blast main surface position evenly is equipped with a plurality of groups gas shower nozzle.

Further, a support is fixedly arranged in the middle of the surface of the bottom end inside the drying box, a plurality of groups of wind shields are uniformly arranged on the surface of the support, and a plurality of groups of winding main bodies are uniformly abutted to one end of each wind shield, which is positioned on the surface of the support.

Furthermore, the top parts of the two side surfaces of the drying box are symmetrically provided with the dehumidifying box, the two side surfaces of the inside of the dehumidifying box are symmetrically provided with a plurality of groups of water absorbing plates, and a reflow fan is arranged between the water absorbing plates and positioned in the middle of the inside of the dehumidifying box.

Further, the air outlet is symmetrically arranged on the surface of the top end inside the drying box, and the air outlet is symmetrically arranged on the surface of the bottom end inside the drying box.

Furthermore, the air heaters are symmetrically arranged on the surfaces of the two sides of the top of the drying box, and one end of each air heater penetrates through one side of the drying box and is connected with the conveying outer ring through a pipeline.

Furthermore, the two ends of the dehumidifying box are symmetrically provided with the flow pipes, and one ends of the flow pipes penetrate through one side of the drying box and are respectively connected with the air outlet and the air outlet.

Further, a base is fixedly arranged on the surface of the bottom of the drying box.

Further, the wind shield is of an arc-shaped structure.

(III) beneficial effects

Compared with the prior art, the utility model provides a drying device for a power transformer winding, which has the following beneficial effects:

(1) According to the utility model, the inner driving ring and the windshield are adopted, in the actual use process, the hot air pipe can be driven to continuously rotate around the winding by driving the inner driving ring to rotate, hot air is uniformly sprayed on the surface of the winding, so that the winding can be heated more uniformly, the heated area is greatly improved, the probability of occurrence of a heated dead angle is reduced, meanwhile, hot air sprayed by the air spray head is influenced by the windshield after being sprayed, the hot air can be flushed to the back surface of the winding again along the arc-shaped surface, the acting area of the hot air is increased again, the winding can receive heat in all directions, moisture in the winding can be removed more thoroughly, the drying efficiency can be effectively improved by heating in a large area, the operation duration is reduced, and the air drying device has the advantages of good drying effect, comprehensive heating and high drying efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a drying device for windings of a power transformer according to the present utility model;

FIG. 2 is a schematic view of the structure of the driving inner ring of the present utility model;

FIG. 3 is a schematic view of the structure of the outer conveying ring of the present utility model;

fig. 4 is a schematic structural view of the windshield of the present utility model.

In the figure:

1. a drying box; 2. a hot air pipe; 3. a gas shower; 4. a dehumidifying box; 5. a reflow fan; 6. a water absorbing plate; 7. a flow pipe; 8. an air heater; 9. driving the inner ring; 10. a motor; 11. conveying the outer ring; 12. an exhaust port; 13. a bracket; 14. a winding body; 15. a wind shield; 16. an air outlet; 17. and (5) a base.

Detailed Description

For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.

According to an embodiment of the present utility model, there is provided a power transformer winding drying apparatus.

The utility model is further described with reference to the accompanying drawings and the specific embodiments, as shown in fig. 1-4, the power transformer winding drying device according to the embodiment of the utility model comprises a drying oven 1 and a base 17, wherein a conveying outer ring 11 is fixedly arranged at the surface position of the top end inside the drying oven 1, a driving inner ring 9 is sleeved inside the conveying outer ring 11, one end of the driving inner ring 9 penetrates through one side of the drying oven 1 and is connected with a motor 10, a plurality of groups of channels for gas circulation are arranged at the inner positions of the driving inner ring 9 and the conveying outer ring 11, a plurality of groups of hot air pipes 2 are uniformly arranged at the surface position of the bottom of the driving inner ring 9 in a surrounding manner, and a plurality of groups of gas spray heads 3 are uniformly arranged at the surface position of the hot air pipes 2.

In one embodiment, a bracket 13 is fixedly arranged in the middle of the surface of the bottom end inside the drying oven 1, a plurality of groups of windshields 15 are uniformly arranged on the surface of the bracket 13, one end of each windshield 15 is uniformly abutted with a plurality of groups of winding main bodies 14 on the surface of the bracket 13, and the winding main bodies 14 are power transformer windings which are required to be dried.

In one embodiment, the top portions of the two side surfaces of the drying box 1 are symmetrically provided with the dehumidifying box 4, the two side surfaces of the inside of the dehumidifying box 4 are symmetrically provided with a plurality of groups of water absorbing plates 6, a reflow fan 5 is arranged between the water absorbing plates 6 and positioned in the middle of the inside of the dehumidifying box 4, the water absorbing plates 6 can be made of water absorbing materials, such as a dryer, water absorbing resin and the like, and specific materials can be adjusted according to personnel requirements, so long as the water in gas can be removed, and the method is not limited.

In one embodiment, the air outlet 12 is symmetrically arranged at the top end surface position inside the drying box 1, and the air outlet 16 is symmetrically arranged at the bottom end surface position inside the drying box 1.

In one embodiment, the air heaters 8 are symmetrically arranged on the two side surfaces of the top of the drying box 1, and one end of each air heater 8 penetrates through one side of the drying box 1 and is connected with the conveying outer ring 11 through a pipeline.

In one embodiment, two ends of the dehumidifying box 4 are symmetrically provided with a flow pipe 7, one end of the flow pipe 7 penetrates through one side of the drying box 1 and is respectively connected with an air outlet 12 and an air outlet 16, the air outlet 12 is arranged for guiding out hot air containing moisture, the air outlet 16 is used for guiding in the hot air with moisture removed for the second time, and the drying effect on the winding is improved while the internal temperature is maintained.

In one embodiment, the base 17 is fixedly arranged on the bottom surface of the drying oven 1, and the device can be fixed through the base 17, so that the overall stability is enhanced.

In one embodiment, the wind shield 15 is of an arc structure, and the arc structure is used for ensuring that the sprayed hot air can be blocked and re-flowed, so that the hot air can act on the back surface of the winding, more comprehensive drying operation of the winding is realized, and the overall drying effect is improved.

Working principle: in the in-service use, personnel can evenly place the power transformer winding that needs to handle on the surface of support 13, then can drive through the operation of motor 10 and drive inner ring 9 and carry out continuous rotation, make the hot-blast main 2 of its bottom can encircle support 13 and rotate incessantly, can spout the steam that hot-blast main 8 produced through gas shower nozzle 3 when rotating, get rid of the moisture in the winding through this part steam, realize the drying operation to the winding, because the continuous rotation of hot-blast main 2, make the surface of winding can be even be heated, avoid part excessive and part uneven heating, lead to the winding to take place to damage or the phenomenon of winding drying not thoroughly to appear, and can receive windshield 15's blocking at the time of spouting at gas shower nozzle 3, can strike the back of winding through the arc structure of its surface, the drying operation more comprehensive to it is realized, and the moisture that produces during the drying can be exported through the gas vent 12 at top, and get back to the inside the device along gas outlet 16 again after getting rid of moisture through this part steam board 6, can guarantee through this part inside drying temperature that gets rid of, the whole consumption of drying device has the advantage of high temperature, the overall drying efficiency, the overall consumption of drying efficiency is high, and the whole drying efficiency can be maintained, and the drying efficiency is high.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a power transformer winding drying device, includes drying cabinet (1) and base (17), its characterized in that, inside top surface position fixed mounting of drying cabinet (1) has carries outer ring (11), carry outer ring (11) inside cover to put in driving ring (9), driving ring (9) one end runs through drying cabinet (1) one side and is connected with motor (10), driving ring (9) and carry outer ring (11) inside position all to be equipped with the passageway that a plurality of sets of air supplies gas circulation used, a plurality of sets of hot-blast main (2) are evenly encircleed to driving ring (9) bottom surface position, hot-blast main (2) surface position evenly is equipped with a plurality of gas shower nozzles (3).

2. The power transformer winding drying device according to claim 1, wherein a bracket (13) is fixedly arranged in the middle of the surface of the bottom end inside the drying box (1), a plurality of groups of windshields (15) are uniformly arranged on the surface of the bracket (13), and a plurality of groups of winding main bodies (14) are uniformly abutted to one end of each windshield (15) at the surface of the bracket (13).

3. The power transformer winding drying device according to claim 1, wherein the dehumidifying boxes (4) are symmetrically arranged at the top positions of the two side surfaces of the drying box (1), a plurality of groups of water absorbing plates (6) are symmetrically arranged at the positions of the two side surfaces inside the dehumidifying boxes (4), and a reflow fan (5) is arranged between the water absorbing plates (6) and is arranged at the middle position inside the dehumidifying boxes (4).

4. The drying device for the power transformer winding according to claim 1, wherein the exhaust port (12) is symmetrically arranged at the top end surface position inside the drying box (1), and the air outlet (16) is symmetrically arranged at the bottom end surface position inside the drying box (1).

5. The drying device for the power transformer winding according to claim 1, wherein air heaters (8) are symmetrically arranged on the two side surfaces of the top of the drying box (1), and one end of each air heater (8) penetrates through one side of the drying box (1) and is connected with a conveying outer ring (11) through a pipeline.

6. A power transformer winding drying device according to claim 3, wherein two ends of the dehumidifying box (4) are symmetrically provided with a flow pipe (7), and one end of the flow pipe (7) penetrates through one side of the drying box (1) and is respectively connected with an air outlet (12) and an air outlet (16).

7. The power transformer winding drying device according to claim 1, characterized in that a base (17) is fixedly mounted at the bottom surface position of the drying box (1).

8. A power transformer winding drying arrangement according to claim 2, characterized in that the wind shield (15) is of an arc-shaped configuration.