CN111430119B

CN111430119B - Power transformer spraying system

Info

Publication number: CN111430119B
Application number: CN202010349579.8A
Authority: CN
Inventors: 许云宇; 李应光; 蔡勇; 卜照荣
Original assignee: Guangdong Power Grid Co Ltd; Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-02-05
Anticipated expiration: 2040-04-28
Also published as: CN111430119A

Abstract

The embodiment of the invention discloses a power transformer spraying system, which comprises a transformer and four groups of radiating fin groups symmetrically arranged on the outer wall of the transformer, wherein each radiating fin group comprises a plurality of radiating fins arranged on the outer wall of the transformer in parallel, the tops of the transformer and the corresponding radiating fin groups are both provided with a spraying assembly, and the four spraying assemblies are both connected with water supply pipelines; the driving motor is utilized to drive the driving disc to rotate, so that the sliding seat drives the horizontal spraying pipe to circularly move, the track of the sprayed water flow is constantly changed, the track of the water flow on the surface of the radiating fin is continuously increased and repeated until the water flow passes through the whole surface of the radiating fin, the problem that the sprayed water flow track is unchanged, so that the water flow path on the surface of the radiating fin is single and the surface of the radiating fin cannot be covered is solved, and the cooling effect of the spraying system on the radiating fin and a transformer is improved.

Description

Power transformer spraying system

Technical Field

The embodiment of the invention relates to the technical field of transformers, in particular to a power transformer spraying system.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, the main components are a primary coil, a secondary coil and an iron core, the oil-immersed self-cooling transformer is a novel high-performance transformer of one type, the structure is more reasonable, the performance is more excellent, and the transformer is only used for transformation of power grids of urban and rural and industrial and mining enterprises and transformers for combined transformers and pre-installed substations.

Oily formula self-cooling transformer is under the higher or great condition of load of ambient temperature, the heat of production can not distribute through the fin fast, it is higher to lead to the inside oil temperature of transformer, make the output capacity of transformer not enough, in order to reduce the inside oil temperature of transformer, current generally adopt spray set to assist the cooling to the transformer, spray system sprays water to the fin on, because the tension effect of water itself, rivers can assemble and leave, and the water that subsequently sprays can flow down along the orbit of rivers before, make the fin surface can not be covered the cooling water completely, the effect that leads to spray system to the supplementary cooling of fin can reduce by a wide margin, therefore, can design a power transformer spray system.

Disclosure of Invention

Therefore, the embodiment of the invention provides a power transformer spraying system, which solves the problem that the cooling effect is greatly reduced because water flow cannot completely cover the surface of a cooling fin when the existing spraying system is used for carrying out auxiliary cooling on a transformer.

In order to achieve the above object, an embodiment of the present invention provides the following:

a power transformer spraying system comprises a transformer and four groups of radiating fin groups symmetrically arranged on the outer wall of the transformer, wherein each radiating fin group comprises a plurality of radiating fins arranged on the outer wall of the transformer in parallel, the tops of the transformer and the corresponding radiating fin groups are both provided with a spraying assembly, and the four spraying assemblies are connected with water supply pipelines;

the spraying component comprises a first support fixedly connected to the top of the transformer and a plurality of second supports arranged at equal intervals, a driving disc is movably connected to the first support through a rotating shaft, a connecting rod is movably connected to the side wall of the driving disc, one end of the rotating shaft is connected with a driving motor installed at the top of the transformer, a sliding rod is fixedly connected to each second support, the axis of one sliding rod is parallel to the straight line of the horizontal diameter of the driving disc and is positioned on the same horizontal plane, a sliding seat is sleeved on each sliding rod in a sliding mode, one sliding seat is movably connected to one end of the connecting rod, the tops of the sliding seats are fixedly connected with a synchronizing rod together, the bottom of each sliding seat is connected with a horizontal spraying pipe communicated with a water supply pipeline, and each horizontal spraying pipe is positioned between two adjacent cooling fins, each horizontal spraying pipe is provided with a plurality of groups of spraying holes on the side wall.

As a preferable scheme of the present invention, the spraying holes are formed in the side wall of the horizontal spraying pipe opposite to the heat sink, the number of groups of the spraying holes is three, and the spraying directions of each group of the spraying holes are different.

As a preferable scheme of the invention, hole sites of two adjacent groups of the spraying holes are arranged in parallel in a staggered manner.

As a preferred scheme of the invention, the sliding seats movably connected with the connecting rods are positioned in the middle of the plurality of sliding seats at the top of the same radiating fin group.

As a preferable scheme of the invention, each horizontal spraying pipe is connected with a hose, and one end of each hose penetrates through the synchronous rod and is communicated with a water supply pipeline.

As a preferred scheme of the invention, the horizontal spray pipe comprises a spray pipe body communicated with the hose and a connecting seat fixedly connected to the top of the spray pipe body, a plurality of sliding cavities are symmetrically formed in the connecting seat, the bottom of each sliding cavity is connected with an adjusting rod through a spring, and the tops of the adjusting rods penetrate through the corresponding sliding cavities and are fixedly connected to the bottoms of the corresponding sliding seats together.

As a preferable scheme of the invention, the distance between one end of the shower body close to the transformer and the side wall of the transformer is equal to the length of a half-cycle of movement of the connecting position of the connecting rod and the driving disc, and the other end of the shower body is flush with the plane of one side of the radiating fin.

In a preferred embodiment of the present invention, the surface of the heat sink is coated with a hydrophilic coating.

As a preferred scheme of the present invention, the top of each fin group is fixedly connected with a support, and one end of each corresponding sliding rod in the same direction is fixedly connected to the corresponding support.

As a preferable scheme of the present invention, the water supply pipeline is annular, and the water supply pipeline is installed outside the four fin groups.

The embodiment of the invention has the following advantages:

the driving motor is utilized to drive the driving disc to rotate, so that the sliding seat drives the horizontal spraying pipe to circularly move, the track of the sprayed water flow is constantly changed, the track of the water flow on the surface of the radiating fin is continuously increased and repeated until the water flow passes through the whole surface of the radiating fin, the problem that the sprayed water flow track is unchanged, so that the water flow path on the surface of the radiating fin is single and the surface of the radiating fin cannot be covered is solved, and the cooling effect of the spraying system on the radiating fin and a transformer is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a power transformer spraying system according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a horizontal shower pipe according to an embodiment of the present invention

Fig. 3 is a schematic top view of a power transformer spraying system according to an embodiment of the present invention.

In the figure:

1-a transformer; 2-a fin group; 3-a heat sink; 4-a spray assembly; 5-water supply pipeline; 6-a hose; 7-a scaffold;

401-a first pillar; 402-a second pillar; 403-a drive disk; 404-a drive motor; 405-a slide bar; 406-a slide shoe; 407-connecting rod; 408-horizontal shower; 409-spraying holes; 410-a synchronization rod; 411-shower body; 412-a connecting seat; 413-a sliding chamber; 414-adjusting lever.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below 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.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

As shown in fig. 1 to 3, the present invention provides a power transformer spraying system, which includes a transformer 1 and four groups of cooling fin groups 2 symmetrically installed on the outer wall of the transformer 1, each cooling fin group 2 includes a plurality of cooling fins 3 parallelly installed on the outer wall of the transformer 1, the top of the transformer 1 and the top of the corresponding cooling fin group 2 are both installed with a spraying component 4, and the four spraying components 4 are both connected with a water supply pipeline 5;

the spraying component 4 comprises a first support 401 fixedly connected to the top of the transformer 1 and a plurality of second supports 402 arranged at equal intervals, a driving disc 403 is movably connected to the first support 401 through a rotating shaft, a connecting rod 407 is movably connected to the side wall of the driving disc 403, one end of the rotating shaft is connected with a driving motor 404 arranged at the top of the transformer 1, a sliding rod 405 is fixedly connected to each second support 402, the axis of one sliding rod 405 is parallel to the straight line of the horizontal diameter of the driving disc 403 and is positioned on the same horizontal plane, a sliding seat 406 is sleeved on each sliding rod 405 in a sliding manner and is movably connected with one end of the connecting rod 407, a synchronizing rod 410 is fixedly connected to the tops of the sliding seats 406, a horizontal spraying pipe 408 communicated with a water supply pipeline 5 is connected to the bottom of each sliding seat 406, and each horizontal spraying pipe 408 is positioned between two adjacent cooling fins 3, a plurality of groups of spraying holes 409 are arranged on the side wall of each horizontal spraying pipe 408.

When the heat dissipation device is used, the four cooling fin groups 2 are symmetrically arranged on the periphery of the transformer 1, the cooling fin groups 2 are used for cooling the transformer 1, and the spraying component 4 is positioned at the tops of the corresponding cooling fin groups 2 and the transformer 1.

When the ambient temperature is high or the transformer 1 runs at a high load, the heat radiating fin group 2 is not enough to timely radiate the heat inside the transformer 1, so that the oil temperature inside the transformer 1 is high, and at the moment, the spraying system 4 needs to be started to assist in cooling the transformer 1.

The spraying system 4 is provided with a water supply pipeline 5 for supplying water and has certain water pressure.

Water in the water supply pipeline 5 enters the horizontal spraying pipe 408, and a plurality of groups of spraying holes 409 which are formed in the horizontal spraying pipe 408 spray towards the surfaces of the radiating fins 3 on two sides, so that heat absorption and temperature reduction are performed by using the water.

However, if the water flow path sprayed by the horizontal spraying pipe 408 is not changed, the path through which the water flow flows on the surface of the heat sink 3 is also basically not changed, and the subsequent water flow always flows on the surface of the heat sink 3 along the path through which the previous water flows, so that the surface of the heat sink 3 cannot be completely covered with water for cooling, and the effect of auxiliary cooling of the spraying system 4 is reduced.

Therefore, when the horizontal spraying pipe 408 is used for spraying and cooling, the driving motor 404 is started, so that the driving disc 403 rotates, the driving disc 403 drives the sliding seat 406 to circularly slide on the sliding rod 405 through the connecting rod 407, and the horizontal spraying pipe 408 is driven to circularly move between the two heat dissipation plates 3, so that the paths of the water sprayed by the horizontal spraying pipe 408 are changed at all times, and the sprayed water can cover all paths within the water coverage range when reaching the surfaces of the heat dissipation plates 3.

The path of water flow on reaching the radiating fin 3 is fully covered, so that the path of subsequent water flow is changed, the surface of the radiating fin 3 below the position of the path can be completely covered by the water flow, the water flow sprayed out by the horizontal spraying pipes 408 can simultaneously reach different positions on the surface of the radiating fin 3 due to the arrangement of the multiple groups of spraying holes 409, the surfaces of multiple heights on the surface of the radiating fin 3 can be completely covered by the water flow, the surface of the whole radiating fin 3 is completely covered by the water flow, and the cooling effect of the spraying system 4 on the radiating fin 3 is greatly improved.

Through the synchronous transmission of the synchronous rod 410, the sliding seats 406 can circularly slide on the sliding rod 405 at the same time, and the horizontal spraying pipes 408 positioned between two adjacent cooling fins 3 can circularly move, so that the surfaces of all the cooling fins 3 can be completely covered by the sprayed water paths, and a good cooling effect is obtained.

When the spraying systems 4 are started, the four spraying systems 4 are started simultaneously, and the corresponding spraying systems 4 are arranged above each cooling fin group 2, wherein the difference is that the number of the arranged sliding rods 405 and the number of the structures which are connected with the sliding rods 405 are different.

The axis of the sliding rod 405 is parallel to the horizontal diameter of the driving disc 403 and is located on the same horizontal plane, so that the sliding seat 406 can be driven to circularly slide along the sliding rod 405 when the driving disc 403 rotates, and the device can normally operate.

The spraying holes 409 are arranged on the side wall of the horizontal spraying pipe 408 opposite to the radiating fin 3, the number of groups of the spraying holes 409 is three, and the spraying directions of each group of the spraying holes 409 are different.

The horizontal shower pipes 408 only need to cool the surface of the heat sink 3, and therefore the arrangement direction of the shower holes 409 only needs to be aligned with the surface of the heat sink 3.

In this embodiment, the number of the groups of the spraying holes 409 is three, and more groups of the spraying holes 409 can be provided, so that the spraying effect is better, but considering that the surface area of the horizontal spraying pipe 408 is limited, and three groups of the spraying holes 409 are enough for spraying.

Every group sprays the direction nonconformity of hole 409 for horizontal spray pipe 408 can spray the different height position on fin 3 surface simultaneously when spraying, can carry out rivers to cover the cooling with the surface of fin 3 sooner, and cooperates horizontal spray pipe 408 constantly to move, makes the surface that covers fin 3 that can be faster, and the cooling effect is better sooner.

The hole sites of the two adjacent groups of spraying holes 409 are arranged in parallel in a staggered way.

The staggered spraying holes 409 can make the water flow paths sprayed out by the horizontal spraying pipes 408 more, the surfaces of the radiating fins 3 can be covered more simultaneously, and the horizontal spraying pipes 408 which are matched with the circular motion can more quickly and completely cover the surfaces of the radiating fins 3.

The sliding seats 406 movably connected with the connecting rods 407 are located in the middle of the sliding seats 406 at the top of the same fin group 2.

The sliding seats 406 at the two sides are driven by the sliding seats 406 at the middle position to move, so that the sliding seats 406 at the two sides can obtain the same force, the movement is more stable, and the synchronism is better.

Each horizontal spraying pipe 408 is connected with a hose 6, and one end of each hose 6 penetrates through the synchronizing rod 410 to be communicated with the water supply pipeline 5.

The flexible tube 6 has the characteristic of being freely deformable and can be matched with the circular movement of the horizontal spray pipe 408 without causing obstruction to the movement.

Horizontal spray pipe 408 includes shower body 411 and the connecting seat 412 of fixed connection in shower body 411 top that communicates with hose 6, and a plurality of sliding chamber 413 has been seted up to the symmetry in connecting seat 412, and there is regulation pole 414 bottom of every sliding chamber 413 all through spring coupling, and the top of a plurality of regulation pole 414 all runs through corresponding sliding chamber 413 and common fixed connection in the bottom that corresponds sliding seat 406.

To further ensure that the water flow can fully cover the surface of the heat sink 3, when the horizontal shower 408 moves to one side, the shower body 411 and the connecting base 412 move upward along the adjusting rod 414 due to the driving of the connecting rod 407 and the flexible tube 6, and the spring is compressed in the sliding cavity 413.

When the horizontal shower 408 moves back, the shower body 411 and the connection base 412 move down along the adjustment rod 414 by the elastic force of the spring, and the spring returns to its original length.

Shower body 411 and connecting seat 412 can carry out up-and-down reciprocating motion for the spraying scope of spraying hole 409 and the orbit of spraying hole 409 are bigger more, can cover fin 3 on the surface more by a wide margin simultaneously, and further assurance rivers can cover fin 3's surface completely, promote spraying system 4's cooling effect.

The distance between one end of the shower body 411 close to the transformer 1 and the side wall of the transformer 1 is equal to the length of a half-circle of movement of the connection part of the connecting rod 407 and the driving disc 403, and the other end of the shower body 411 is flush with the plane of one side of the heat sink 3.

One end of the shower body 411 is flush with one side of the heat sink 3, so that the distance from the shower body 1 to the other side of the heat sink 3 is only equal to the length of the half-turn at the joint of the driving disc 403 and the connecting rod 407, and the shower body 411 can completely spray the surface of the heat sink 3.

When the joint of drive plate 403 and link 407 has moved the remaining half of a revolution, shower body 411 moves back to the home position.

The surface of the heat sink 3 is coated with a hydrophilic coating.

The fin 3 coated with the hydrophilic coating enables water to flow more smoothly on the surface thereof, and can be rapidly dispersed, reducing the possibility of converging into water flow.

The top of each fin group 2 is fixedly connected with a support 7, and one ends of the corresponding sliding rods 405 in the same direction are fixedly connected to the corresponding supports 7.

The mounting of the bracket 7 enables both ends of the sliding rod 405 to be supported, so that the stability of the sliding rod 405 is better, and the possibility of breaking damage is reduced.

The water supply pipeline 5 is annular, and the water supply pipeline 5 is installed in the outside of four fin groups 2.

Annular water supply pipe 5 can supply water for four spray assembly 4 simultaneously, and the convenience just reduces the material and uses.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The power transformer spraying system is characterized by comprising a transformer (1) and four groups of radiating fin groups (2) symmetrically arranged on the outer wall of the transformer (1), wherein each radiating fin group (2) comprises a plurality of radiating fins (3) arranged on the outer wall of the transformer (1) in parallel, the tops of the transformer (1) and the corresponding radiating fin groups (2) are jointly provided with a spraying assembly (4), and the four spraying assemblies (4) are all connected with a water supply pipeline (5);

the spraying assembly (4) comprises a first support column (401) fixedly connected to the top of the transformer (1) and a plurality of second support columns (402) arranged at equal intervals, a driving disc (403) is movably connected to the first support column (401) through a rotating shaft, a connecting rod (407) is movably connected to the side wall of the driving disc (403), one end of the rotating shaft is connected with a driving motor (404) installed at the top of the transformer (1), a sliding rod (405) is fixedly connected to each second support column (402), the axis of one sliding rod (405) is parallel to the straight line of the horizontal diameter of the driving disc (403) and is located on the same horizontal plane, a sliding seat (406) is sleeved on each sliding rod (405) in a sliding mode, one sliding seat (406) is movably connected to one end of the connecting rod (407), and a synchronizing rod (410) is fixedly connected to the tops of the sliding seats (406), the bottom of each sliding seat (406) is connected with a horizontal spray pipe (408) communicated with a water supply pipeline (5), each horizontal spray pipe (408) is positioned between two adjacent radiating fins (3), and the side wall of each horizontal spray pipe (408) is provided with a plurality of groups of spray holes (409);

the spraying holes (409) are formed in the side wall of the horizontal spraying pipe (408) opposite to the radiating fins (3).

2. A power transformer spraying system according to claim 1, wherein the number of groups of spraying holes (409) is three, and the spraying direction of each group of spraying holes (409) is different.

3. A power transformer spraying system according to claim 2, characterized in that the holes of two adjacent groups of said spraying holes (409) are arranged in parallel and offset.

4. A power transformer spraying system according to claim 1, characterized in that the sliding seats (406) movably connected with the connecting rods (407) are located in the middle of several sliding seats (406) on the top of the same fin group (2).

5. An electrical transformer spraying system according to claim 1, wherein a hose (6) is connected to each horizontal spraying pipe (408), and one end of each hose (6) is communicated with the water supply pipeline (5) through a synchronizing rod (410).

6. The power transformer spraying system of claim 5, wherein the horizontal spraying pipe (408) comprises a spraying pipe body (411) communicated with the hose (6) and a connecting seat (412) fixedly connected to the top of the spraying pipe body (411), a plurality of sliding cavities (413) are symmetrically formed in the connecting seat (412), the bottom of each sliding cavity (413) is connected with an adjusting rod (414) through a spring, and the tops of the adjusting rods (414) penetrate through the corresponding sliding cavities (413) and are fixedly connected to the bottoms of the corresponding sliding seats (406) together.

7. A power transformer spraying system according to claim 6, characterized in that the distance between one end of the shower body (411) close to the transformer (1) and the side wall of the transformer (1) is equal to the length of half a cycle of movement of the connection of the connecting rod (407) and the driving disc (403), and the other end of the shower body (411) is flush with the plane of one side of the heat sink (3).

8. A power transformer spraying system according to claim 1, characterized in that the surface of the heat sink (3) is coated with a hydrophilic coating.

9. A power transformer spraying system according to claim 1, wherein a bracket (7) is fixedly connected to the top of each fin group (2), and one ends of the corresponding sliding rods (405) in the same direction are fixedly connected to the corresponding bracket (7).

10. A power transformer spraying system according to claim 5, wherein the water supply pipe (5) is ring-shaped and the water supply pipe (5) is mounted outside the four fin groups (2).