CN216815172U

CN216815172U - Heat dissipation device for dry-type power transformer

Info

Publication number: CN216815172U
Application number: CN202123364522.4U
Authority: CN
Inventors: 万丽娟; 刘凌中
Original assignee: Jony Mechanical & Electrical Engineering Suzhou Co ltd
Current assignee: Jony Mechanical & Electrical Engineering Suzhou Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-06-24
Anticipated expiration: 2031-12-29

Abstract

The utility model relates to the field of power equipment, in particular to a heat dissipation device for a dry-type power transformer, which comprises a heat transfer sheet and a heat dissipation sheet group, wherein the heat transfer sheet is arranged in a voltage device installation box and exchanges heat with a heating part in the transformer, the heat dissipation sheet group is arranged outside the installation box and exchanges heat with the heat transfer sheet, the heat dissipation sheet group is protected by a protective cover, and a cleaning structure for cleaning the heat dissipation sheet group is arranged on the protective cover, wherein a spraying component and a fan component are arranged on the protective cover.

Description

Heat dissipation device for dry-type power transformer

Technical Field

The utility model relates to the field of power equipment, in particular to a heat dissipation device for a dry-type power transformer.

Background

The power transformer is divided into a dry power transformer and an oil-immersed power transformer according to the cooling form of the power transformer, and compared with the oil-immersed power transformer, the dry power transformer has the advantages of less pollution, difficult fire and explosion, low noise and low loss during operation, so that the dry power transformer is widely applied to industries such as factories and power stations.

Dry-type transformer can produce a large amount of heats at the operation in-process, and current radiating mode has wind cold dissipation and water-cooling heat dissipation usually, and wherein the water-cooling heat dissipation contacts through the piece that generates heat in heat transfer fin and the transformer, takes away the heat through the liquid circulation to through cooling to the fin, realize thermal exchange.

At present, dust is easily attached to the surface of the water-cooling radiating fin when the water-cooling radiating fin is used, the radiating fin is influenced to discharge heat, and further the radiating effect of the transformer is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a heat dissipation device for a dry-type power transformer, which aims to solve the problems that dust is easy to attach to the surface of a conventional water-cooling heat dissipation fin when the heat dissipation fin is used, the heat dissipation of the heat dissipation fin is influenced, and the heat dissipation effect of the transformer is further influenced.

In order to achieve the purpose, the utility model provides a heat dissipation device for a dry-type power transformer, which comprises a heat transfer sheet and a heat dissipation sheet group, wherein the heat transfer sheet is arranged in a voltage device installation box and exchanges heat with a heating part in the transformer;

the cleaning structure comprises a cleaning frame, the cleaning frame is connected in the protective cover in a sliding mode, a plurality of groups of partition plates are arranged on the cleaning frame, gaps between every two adjacent partition plates are used for allowing the radiating fin groups to pass through, cleaning brushes are arranged on the side, close to the radiating fin groups, of each partition plate, the cleaning brushes are abutted to the radiating fin groups, and the cleaning frame is driven by a driving assembly to move;

wherein the protective cover is provided with a spraying component and a fan component;

when the cleaning device is used for cleaning the radiating fin group, the cleaning liquid is sprayed onto the radiating fin group through the spraying assembly, and the cleaning frame is driven to move in a reciprocating manner through the driving assembly, so that the cleaning brush on the partition plate can clean the radiating fin group, and dust and impurities on the radiating fin group are removed.

As a further scheme of the utility model, the protective cover is provided with a slideway for the cleaning frame to slide, and the cleaning frame is limited and connected in the slideway in a sliding manner, so that the stability of the cleaning frame during operation is improved.

As a further scheme of the utility model, the driving assembly comprises a driving screw rod, the driving screw rod is driven to rotate by a driving motor, a fixed sleeve which forms a screw pair transmission with the driving screw rod is arranged on the cleaning frame, and when the driving assembly works, the driving screw rod is driven to rotate by the driving motor, and the cleaning frame is driven to move by the transmission of the fixed sleeve.

As a further scheme of the utility model, the spray assembly comprises a plurality of groups of sprayers, and the sprayers are connected with the liquid storage tank and used for spraying the cleaning liquid to the radiating fin groups.

As a further scheme of the present invention, the fan assembly includes a plurality of sets of fans, and the fans are installed at the air inlet of the protective cover and used for cooling the fin set.

As a further scheme of the utility model, a filter screen is arranged at the air inlet and detachably connected to the mounting seat at the air inlet, and dust passing through the air inlet is filtered through the filter screen, so that the dust content of air flow contacting with the radiating fin group is reduced.

Compared with the prior art, the cooling fin group is cleaned by designing the cleaning structure, dust and dirt on the cooling fin group are cleaned, and the problem that the cooling fin is affected in heat discharge and further affected in the heat dissipation effect of the transformer due to the fact that dust is easily attached to the surface of the existing water-cooling fin when the cooling fin is used is solved.

Drawings

Fig. 1 is a schematic structural diagram of a heat dissipation device for a dry power transformer according to the present invention.

Fig. 2 is a schematic structural diagram of a cleaning structure provided in the present invention.

Fig. 3 is an enlarged schematic view of the utility model at a in fig. 1.

In the drawings: 1-installing a box; 2-a heat transfer sheet; 3-a fin group; 4-a protective cover; 5-a sprayer; 6-a fan; 7-a filter screen; 8-cleaning the structure; 801-cleaning frame; 802-a separator; 8021-cleaning brush; 803-fixation sleeves; 804-a threaded hole; 9-driving the screw.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to specific embodiments.

As shown in fig. 1 and fig. 2, in an embodiment of the present invention, a heat dissipation apparatus for a dry-type power transformer includes a heat transfer sheet 2 and a heat dissipation sheet group 3, where the heat transfer sheet 2 is disposed in a voltage transformer installation box 1 and exchanges heat with a heating portion in the transformer, the heat dissipation sheet group 3 is disposed outside the installation box 1 and exchanges heat with the heat transfer sheet 2, the heat dissipation sheet group 3 is protected by a protective cover 4, and a cleaning structure 8 for cleaning the heat dissipation sheet group 3 is disposed on the protective cover 4;

the cleaning structure 8 comprises a cleaning frame 801, the cleaning frame 801 is slidably connected in the protective cover 4, a plurality of groups of partition plates 802 are arranged on the cleaning frame 801, a gap between every two adjacent partition plates 802 is used for a cooling fin group 3 to pass through, a cleaning brush 8021 is arranged on the partition plate 802 close to the cooling fin group 3, the cleaning brush 8021 is abutted against the cooling fin group 3, and the cleaning frame 801 is driven to move by a driving assembly;

wherein the protective cover 4 is provided with a spraying component and a fan component;

when the cooling fin group 3 is cleaned, the cleaning liquid is sprayed onto the cooling fin group 3 through the spraying assembly, the cleaning frame 801 is driven to reciprocate along the length direction of the cooling fin group 3 through the driving assembly, so that the cleaning brush 8021 on the partition plate 802 is in contact with the cooling fin group 3, the surface of the cooling fin group 3 is cleaned, and dust and impurities on the cooling fin group 3 are removed;

as shown in fig. 1, in the embodiment of the present invention, a slide way for the cleaning frame 801 to slide is provided on the protective cover 4, the cleaning frame 801 is connected in the slide way in a limiting and sliding manner, and the stability of the cleaning frame 801 during operation is improved by the slide way.

As shown in fig. 1 and fig. 3, in the embodiment of the present invention, the driving assembly includes a driving screw 9, the driving screw 9 is driven to rotate by a driving motor, a fixing sleeve 803 forming a screw pair transmission with the driving screw 9 is disposed on the cleaning frame 801, a threaded hole 804 is correspondingly disposed on the fixing sleeve 803, when the driving assembly is in operation, the driving motor drives the driving screw 9 to rotate, and the fixing sleeve 803 drives the cleaning frame 801 to move;

in practice, of course, other components with reciprocating driving capability may be used to replace the driving screw 9 to drive the cleaning frame 801 to reciprocate, for example, a transmission structure of a vertical rack and a gear may be used, and the utility model is not limited in particular.

As shown in fig. 1, in the embodiment of the present invention, the spray assembly includes a plurality of sets of sprayers 5, the sprayers 5 are installed on the protective cover 4 and connected to the liquid storage tank, and the cleaning liquid is sprayed to the fin group 3 through the sprayers 5 to clean dust and impurities on the fin group 3.

As shown in fig. 1, in the embodiment of the present invention, the fan assembly includes a plurality of sets of fans 6, and the fans 6 are installed at an air inlet of the protective cover 4 and used for cooling the fin group 3.

As shown in fig. 1, in the embodiment of the present invention, a filter screen 7 is disposed at the air inlet, the filter screen 7 is detachably connected to the mounting seat at the air inlet, and dust passing through the air inlet is filtered by the filter screen 7, so as to reduce dust content of air flow contacting with the fin group 3;

meanwhile, the air outlet of the protective cover 4 is also provided with the filter screen 7, so that dust is prevented from entering the protective cover 4 through the air outlet and contacting the radiating fin group 3.

In summary, the utility model cleans the cooling fin group 3 by designing the cleaning structure 8, and cleans dust and dirt on the cooling fin group 3, thereby avoiding the problem that the cooling fin is easily attached with dust when the surface of the existing water-cooling fin is used, and the heat emission of the cooling fin is influenced, and further the heat dissipation effect of the transformer is influenced.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A heat dissipation device for a dry-type power transformer is characterized by comprising a heat transfer sheet and a heat dissipation sheet group, wherein the heat transfer sheet is arranged in a voltage device installation box and exchanges heat with a heating part in the transformer;

the cleaning structure comprises a cleaning frame, the cleaning frame is connected in the protective cover in a sliding mode, a plurality of groups of partition plates are arranged on the cleaning frame, gaps between every two adjacent partition plates are used for allowing the radiating fin groups to pass through, cleaning brushes are arranged on the side, close to the radiating fin groups, of each partition plate, the cleaning brushes are abutted to the radiating fin groups, and the cleaning frame is driven to move through a driving assembly;

wherein the protective cover is provided with a spraying component and a fan component.

2. The heat sink as claimed in claim 1, wherein the protective cover has a sliding track for sliding the cleaning frame.

3. The heat dissipating device as claimed in claim 1, wherein the driving assembly includes a driving screw, and the cleaning frame is provided with a fixing sleeve forming a screw pair transmission with the driving screw, and the cleaning frame is moved by the rotation of the driving screw.

4. The heat sink as claimed in claim 1, wherein the spray assembly comprises a plurality of sets of sprayers connected to the tank for spraying the cleaning solution onto the sets of fins.

5. A heat sink for a dry-type power transformer as claimed in any one of claims 1 to 4, wherein said fan assembly comprises a plurality of sets of fans mounted at the air inlet of the enclosure for cooling the sets of fins.

6. The heat sink as claimed in claim 5, wherein the air inlet is provided with a filter screen, and the filter screen is detachably connected to the mounting seat of the air inlet.