Cross-flow cooling fan for dry-type transformer

Abstract

The utility model discloses a cross-flow cooling fan for a dry-type transformer, which relates to the technical field of cross-flow cooling fans and comprises a case, an air direction adjusting mechanism is mounted at an opening of the top surface of the case, air inlets are symmetrically formed in the front end surface and the rear end surface of the case, and guide rails are fixedly connected to the upper ends and the lower ends of the air inlets. According to the transformer cooling device, due to the arrangement of the air guide plate and the connecting plate, the air direction can be conveniently adjusted, then the air direction can be controlled to cool a transformer, and due to the arrangement of the dustproof cloth bag and the cleaning mechanism, the air inlet and the dustproof cloth bag can be conveniently cleaned; the high efficiency of dust cleaning is improved, the heat dissipation efficiency can be further improved, dust collection and cleaning are facilitated through the dust falling opening and the waste hopper formed in the bottom of the case, dust at the air inlet can be further cleaned, and finally the problem that a large amount of dust is accumulated at the air inlet is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cross-flow cooling fans, in particular to a cross-flow cooling fan for a dry-type transformer. Background Art

[0002] During the operation of dry-type transformers, due to electromagnetic effects, the windings will generate a lot of heat. Traditional cooling methods mainly include natural air cooling and forced air cooling. Forced air cooling uses a cooling fan to dissipate heat from the windings. If the heat of the transformer windings cannot be dissipated in time or the heat dissipation effect is not good, it will cause serious accidents or affect the service life of the transformer.

[0003] The existing cross-flow cooling fan for dry-type transformers will accumulate a lot of dust at the air inlet after being used for a long time, which affects its air intake efficiency and leads to low heat dissipation efficiency. Secondly, the air outlet cannot be adjusted in angle, which reduces the practicality of the cross-flow cooling fan for dry-type transformers. A cross-flow cooling fan for dry-type transformers has been introduced in a targeted manner; therefore, the above problems need to be improved. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a cross-flow cooling fan for a dry-type transformer.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cross-flow cooling fan for a dry-type transformer, comprising a chassis, a wind direction adjustment mechanism is installed at the opening of the top surface of the chassis, the front and rear end surfaces of the chassis are symmetrically provided with air inlets, the upper and lower ends of the air inlets are fixedly connected with guide rails, and a cleaning mechanism for cleaning the air inlet is provided between the sliding grooves of the two guide rails.

[0006] Preferably, a roller is longitudinally rotatably disposed inside the chassis, a plurality of blades arranged along the length direction are equidistantly disposed on the outer wall of the roller, and a motor for rotating the roller is disposed on one side of the interior of the chassis.

[0007] Preferably, the cleaning mechanism includes a rectangular cleaning frame and a handle arranged on the upper part of the outer wall of the cleaning frame. The cleaning frame is slidably connected between two guide rails. A plurality of cleaning strips inserted into the air inlet are equidistantly arranged in the middle opening of the cleaning frame, and a dust bag is abutted against the top of the cleaning strip.

[0008] Preferably, the wind direction adjustment mechanism includes a plurality of wind guide plates equidistantly arranged longitudinally, support columns and guide columns fixed on both sides of the wind guide plates, the guide columns are connected to connecting plates, and the top ends of the support columns are inserted into corresponding limiting holes opened on the side walls of the chassis.

[0009] Preferably, the side ends of the connection plates are fixedly connected with screw rods, the screw rods pass through sliding grooves provided on the chassis, and the outer ends of the screw rods are threadedly connected with nuts.

[0010] Preferably, an ash outlet is provided at the bottom of the chassis, a waste hopper is provided below the ash outlet, and convex strips are provided on both sides of the waste hopper to be clamped with the side wall of the chassis.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: in the utility model, by setting the wind guide plate and the connecting plate, and then fixing with bolts and nuts, it is convenient to adjust the wind direction, which improves the convenience of wind direction adjustment, and then the wind direction can be controlled to dissipate heat for the transformer, and then by setting the dust bag and the cleaning mechanism, it is convenient to clean the air inlet and the dust bag, and the efficiency of dust cleaning is improved, and then the heat dissipation efficiency can be improved, and then the dust collection and cleaning are convenient through the dust collection port and the waste hopper opened at the bottom of the chassis, which improves the convenience of dust cleaning, and then the dust at the air inlet can be cleaned, and finally the problem of large amount of dust accumulated at the air inlet is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed by the utility model;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the air guide plate proposed by the utility model;

[0015] Figure 3 This is a schematic diagram of the blade cross-section structure proposed by the utility model;

[0016] Figure 4 This is a schematic diagram of the partial three-dimensional structure of the air guide plate proposed by the utility model;

[0017] Figure 5 This is a schematic diagram of the three-dimensional structure of the blade proposed by the utility model.

[0018] Serial numbers in the figure: 1. Chassis; 2. Blades; 3. Air guide plate; 4. Air inlet; 5. Cleaning mechanism; 6. Guide rails; 7. Connecting plate; 8. Motor; 9. Handle; 10. Waste hopper; 11. Dust bag; 12. Nut; 13. Screw; 14. Roller; 15. Guide column; 16. Support column. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Example: See Figure 1-5 A cross-flow cooling fan for a dry-type transformer in the utility model comprises a chassis 1, a wind direction adjusting mechanism is installed at the top opening of the chassis 1, air inlets 4 are symmetrically opened on the front and rear end surfaces of the chassis 1, guide rails 6 are fixedly connected to the upper and lower ends of the air inlet 4, a cleaning mechanism 5 for cleaning the air inlet 4 is arranged between the sliding grooves of the two guide rails 6, and the cleaning mechanism 5 can be moved in the sliding groove by setting the guide rails 6, so as to realize the cleaning of the air inlet 4; a roller 14 is arranged longitudinally in the interior of the chassis 1, and a plurality of sheets along the length are equidistantly arranged on the outer wall of the roller 14 The blades 2 are arranged in the direction of rotation, and a motor 8 is arranged on one side of the inner side of the chassis 1 for rotating the roller 14. The arrangement of the blades 2 and the motor 8 can realize heat dissipation for the transformer; the cleaning mechanism 5 includes a rectangular cleaning frame and a handle 9 arranged on the upper part of the outer wall of the cleaning frame. The cleaning frame is slidably connected between the two guide rails 6. A plurality of cleaning strips inserted into the air inlet 4 are evenly arranged in the middle opening of the cleaning frame. A dustproof bag 11 is abutted on the top of the cleaning strip. The dustproof bag 11 can prevent the entry of dust, thereby realizing the dustproof function;

[0021] In the present invention, the wind direction adjustment mechanism includes a plurality of wind guide plates 3 equidistantly arranged in the longitudinal direction, support columns 16 fixedly connected to both sides of the wind guide plates 3, and guide columns 15, wherein the guide columns 15 are connected to a connecting plate 7, and the top ends of the support columns 16 are inserted into corresponding limiting holes provided on the side walls of the chassis 1. By providing the wind guide plates 3, the wind direction can be adjusted, thereby achieving the adjustment of the wind direction; the side ends of the connecting plates 7 are fixedly connected with screws 13, and the screws 13 pass through the sliding grooves provided on the chassis 1, and the outer ends of the screws 13 are threadedly connected with the nuts 12, and the screws 13 and the nuts 12 are provided, thereby achieving the adjustment and fixation of the wind guide plates 3; an ash falling opening is provided at the bottom of the chassis 1, and a waste hopper 10 is provided below the ash falling opening, and convex strips are provided on both sides of the waste hopper 10 to be clamped with the side walls of the chassis 1, and the ash falling opening and the waste hopper 10 are provided, so that dust can fall into the waste hopper 10, thereby achieving the prevention of dust accumulation at the air inlet 4.

[0022] Working principle: When the utility model is used, firstly, a rotating roller 14 is longitudinally fixed inside the chassis 1, and the middle end of the rotating roller 14 is coaxially sleeved with the blade 2. A motor 8 for driving the blade 2 to rotate is provided at the side end of the rotating roller 14. After power is turned on, the motor 8 drives the blade 2 to rotate, so as to achieve heat dissipation for the transformer, and then a wind direction adjustment mechanism is installed at the air outlet. The wind direction adjustment function is achieved by guiding the air guide plate 3 and adjusting and fixing the screw 13 and the nut 12, and then the dust bag 11 is used to prevent the entry of dust, and then the dust bag 11 and the air inlet are cleaned of dust by the cleaning mechanism between the sliding grooves of the two guide rails 6. Finally, the dust falls into the waste hopper 10 through the dust dropping port. It is only necessary to clean the dust in the waste hopper 10 regularly, so as to prevent the accumulation of dust at the air inlet 4 and prevent its air intake efficiency from being affected.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cross-flow cooling fan for a dry-type transformer, comprising a chassis (1), characterized in that: A wind direction adjustment mechanism is installed at the top opening of the chassis (1); air inlets (4) are symmetrically provided at the front and rear end surfaces of the chassis (1); guide rails (6) are fixedly connected to the upper and lower ends of the air inlets (4); and a cleaning mechanism (5) for cleaning the air inlets (4) is provided between the sliding grooves of the two guide rails (6).

2. A cross-flow cooling fan for a dry-type transformer according to claim 1, characterized in that: A roller (14) is provided inside the chassis (1) for longitudinal rotation, a plurality of blades (2) are provided at equal intervals on the outer wall of the roller (14) and arranged along the length direction, and a motor (8) for rotating the roller (14) is provided on one side inside the chassis (1).

3. The cross-flow cooling fan for a dry-type transformer according to claim 1, characterized in that: The cleaning mechanism (5) comprises a rectangular cleaning frame and a handle (9) arranged on the upper part of the outer wall of the cleaning frame. The cleaning frame is slidably connected between two guide rails (6). A plurality of cleaning strips inserted into the air inlet (4) are evenly spaced in the middle opening of the cleaning frame. The top of the cleaning strip is abutted against a dust bag (11).

4. The cross-flow cooling fan for a dry-type transformer according to claim 1, characterized in that: The wind direction adjustment mechanism comprises a plurality of wind guide plates (3) equidistantly arranged in the longitudinal direction, support columns (16) fixedly connected to both sides of the wind guide plates (3), and guide columns (15), wherein the guide columns (15) are connected to connecting plates (7), and the top ends of the support columns (16) are inserted into corresponding limiting holes on the side walls of the chassis (1).

5. A cross-flow cooling fan for a dry-type transformer according to claim 4, characterized in that: The side ends of the connection plates (7) are fixedly connected with screw rods (13), the screw rods (13) pass through sliding grooves provided on the chassis (1), and the outer ends of the screw rods (13) are threadedly connected to the nuts (12).

6. The cross-flow cooling fan for a dry-type transformer according to claim 1, characterized in that: The bottom of the chassis (1) is provided with an ash outlet, a waste hopper (10) is provided below the ash outlet, and convex strips are provided on both sides of the waste hopper (10) for clamping with the side wall of the chassis (1).

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