Axial flow fan support for movable dry-type transformer

Abstract

The utility model discloses an axial flow fan bracket for a movable dry-type transformer. The axial flow fan bracket comprises two channel steel bases which are arranged in parallel at an interval, an adjustable supporting mechanism and a fan fixing bracket, a pair of adjustable supporting mechanisms is arranged on each channel steel base; the fan fixing support is erected on the same set of adjustable supporting mechanisms on the two channel steel bases, the multiple axial flow fans are installed on the fan fixing support, and the height and angle of the fan fixing support are adjusted through the adjustable supporting mechanisms so that the height and angle adjustment of the axial flow fans can be achieved. The cooling device is simple in structure and convenient and fast to install, can combine the structural characteristics of the matched dry-type transformer and the distribution of air channels, can adjust the fixing height and angle of the fan, ensures that cooling airflow covers a coil and an iron core to the maximum extent in all directions, and is introduced into the cooling air channels for heat exchange and cooling.

Description

Technical Field

[0001] This utility model relates to the field of dry-type transformer technology, specifically to an axial flow fan bracket for a movable dry-type transformer. Background Technology

[0002] Currently, the heat dissipation methods for dry-type transformers are generally natural cooling and guided air cooling. Guided air cooling can significantly improve the heat exchange efficiency of the transformer. Both methods use a bottom-mounted axial flow fan to force air circulation from bottom to top.

[0003] Dry-type transformers come in various structural types, and changes in capacity and voltage level will significantly alter the location of hot spots and the layout of air ducts. Using fixed fan supports creates dead zones in the cooling airflow coverage, making it impossible to target the coil air ducts effectively, resulting in low heat dissipation efficiency and impacting transformer performance. Existing bottom-blowing axial flow fans have a single installation height and angle that cannot be adjusted, making it difficult to conveniently adjust the structure based on the installation environment, the structural characteristics of the dry-type transformer itself, and changes in voltage level and capacity. Utility Model Content

[0004] The purpose of this utility model is to provide a movable axial flow fan bracket for dry-type transformers, which aims to solve the defects of existing bottom-blowing axial flow fans, which have a single installation height and angle, cannot be adjusted, and cannot be easily adjusted according to the installation environment and the structural characteristics of the dry-type transformer itself, as well as changes in voltage level and capacity.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a movable dry-type transformer axial flow fan bracket, comprising: two parallel and spaced channel steel bases, an adjustable support mechanism, and a fan fixing bracket; each of the channel steel bases is provided with a pair of adjustable support mechanisms; each adjustable support mechanism includes a set of elongated adjustable connecting plates, a set of triangular adjustable connecting plates, and an adjusting rod; the two elongated adjustable connecting plates and the two triangular adjustable connecting plates are respectively connected to the two long sides of the channel steel base in pairs, and adjusting rods are provided between the two opposing elongated adjustable connecting plates and between the two opposing triangular adjustable connecting plates; the fan fixing bracket is mounted on the same set of adjustable support mechanisms on the two channel steel bases, and the height and angle of the fan fixing bracket are adjusted by the adjustable support mechanisms to achieve adjustment of the axial flow fan.

[0006] Preferably, the elongated adjustable connecting plate has a fixing hole at the lower end along the center line, four adjustment holes at equal intervals from top to bottom at the upper end, and rounded corners at both ends.

[0007] Preferably, the lower end of the triangular adjustable connecting plate is provided with two fixing holes, and the upper end along the center line is provided with three height adjustment holes from top to bottom, and the top end is provided with a rounded corner structure.

[0008] Preferably, the fan mounting bracket uses two equilateral angle steels with their horizontal sides facing each other, and multiple sets of elongated holes are reserved on the end face for mounting the fan, so that the fan can be adjusted left and right in the horizontal direction.

[0009] Preferably, the adjusting rod includes a round steel sleeve and a rotatable screw inserted in the round steel sleeve.

[0010] Preferably, the surface of the screw is covered with a silicone sheet with a thickness of 5mm.

[0011] Preferably, the fan mounting bracket includes two parallel connecting plates and two equilateral angle steels symmetrically arranged between the two base plates.

[0012] Preferably, the two ends of the connecting plate are respectively connected to two round steel sleeves in the adjustable support mechanism.

[0013] Preferably, the equilateral angle steel is provided with multiple elongated slots.

[0014] Preferably, the width of the connecting plate is the same as the width of the channel steel base.

[0015] Preferably, both ends of the connecting plate extend towards the edge of the equilateral angle steel.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model has a simple structure and is easy to install. It can be combined with the structural characteristics and air duct distribution of the matching dry-type transformer. The height and angle of the fixed fan can be adjusted to ensure that the cooling airflow covers the coil and iron core to the greatest extent and is introduced into the cooling air duct for heat exchange and cooling.

[0018] This invention allows for the free adjustment of the horizontal position and vertical height of the axial flow fan during the assembly of an axial flow fan in a dry-type transformer. This is achieved by considering the spacing of the three-phase coils of the transformer, the height difference between the base gauge and the coils, and the distribution of the heat dissipation air ducts. The air outlet of the axial flow fan is matched with the angle of the heat dissipation air ducts and the cooling air coverage area, which significantly improves the air cooling efficiency of the axial flow fan and quickly achieves the purpose of cooling. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 3 This is a top view of the structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the elongated adjustable connecting plate of this utility model.

[0023] Figure 5 This is a schematic diagram of the triangular adjustable connecting plate of this utility model;

[0024] In the diagram: 1. Long strip adjustable connecting plate; 2. Equilateral angle steel; 3. Connecting plate; 4. Triangular adjustable connecting plate; 5. Channel steel base; 6. Screw; 7. Round steel sleeve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Please see Figure 1-5 This utility model provides a movable axial flow fan bracket for dry-type transformers, comprising: two parallel and spaced channel steel bases 5, an adjustable support mechanism, and a fan fixing bracket; each channel steel base has an adjustable support mechanism at both ends; the fan fixing bracket is mounted on the same set of adjustable support mechanisms on the two channel steel bases, and multiple axial flow fans are installed on the fan fixing bracket. The height and angle of the fan fixing bracket are adjusted by the adjustable support mechanism to achieve the height and angle adjustment of the axial flow fans, ensuring that the air outlet of the axial flow fans installed on the fan bracket matches the heat dissipation air passage reserved in the axial direction of the transformer coil and the gap between the high and low voltage coils, increasing the cooling air coverage area, greatly improving the air cooling efficiency of the axial flow fans, and quickly achieving the purpose of cooling.

[0027] In this embodiment, further optimized, the adjustable support mechanism includes a set of elongated adjustable connecting plates 1, a set of triangular adjustable connecting plates 4, and adjusting rods. The two elongated adjustable connecting plates 1 are symmetrically connected to the two long sides of the channel steel base by bolts. Similarly, the two triangular adjustable connecting plates 4 are symmetrically connected to the two long sides of the channel steel base by bolts. There is a certain distance between the elongated adjustable connecting plates and the triangular adjustable connecting plates. Adjusting rods are provided between the two opposing elongated adjustable connecting plates and between the two opposing triangular adjustable connecting plates.

[0028] It should be noted that: the long strip adjustable connecting plate 1 has a fixing hole at the lower end along the center line, and four adjustment holes at equal intervals from top to bottom at the upper end. The two ends are rounded to avoid mechanical conflict during rotation, and the hole positions are flexible; the triangular adjustable connecting plate 4 has two fixing holes at the lower end, and three height adjustment holes at the upper end along the center line from top to bottom. The top is rounded, and the triangular shape provides strong stability; the height and angle of the fan mounting bracket can be adjusted by switching the reserved fixing hole positions.

[0029] In this embodiment, further optimization is achieved, and the adjusting rod includes a round steel sleeve 7 and a rotatable screw 6 inserted in the round steel sleeve.

[0030] To avoid frictional noise and wear caused by direct contact between the screw 6 and the round steel sleeve 7, a 5mm thick silicone sheet can be wrapped around the surface of the screw 6 to achieve vibration reduction and noise reduction.

[0031] In this embodiment, further optimization is achieved by including two parallel connecting plates 3 and two equilateral angle steels 2 symmetrically arranged according to the dimensions of the axial flow fan and connected between the two connecting plates.

[0032] In this embodiment, further optimization is achieved by connecting the two ends of the connecting plate 3 to the two round steel sleeves 7 in the adjustable support mechanism, thereby realizing the docking of the adjustable support mechanism and the fan fixed bracket.

[0033] In this embodiment, further optimization is achieved by reserving multiple sets of elongated holes on the end face of the equilateral angle steel 2 for fixing and installing the axial flow fan. This allows for left and right adjustment of the axial flow fan in the horizontal direction, as well as the assembly and combination of multiple axial flow fans. The fan can also move horizontally on the support and check whether the air outlet of the axial flow fan is aligned with the coil in the horizontal direction, thus achieving full coverage of the coil surface area and cooling.

[0034] In this embodiment, further optimization is achieved by making the width of the connecting plate the same as the width of the channel steel base, and matching the spacing between the two channel steel bases to the transformer track gauge.

[0035] In this embodiment, further optimization is achieved by extending both ends of the connecting plate towards the edge of the equilateral angle steel, leaving a sufficient radius of rotation to enable the bottom of the round steel sleeve to be welded flush with the steel sleeve, allowing for flexible rotation.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A support bracket for an axial flow fan used in a movable dry-type transformer, characterized in that, include: The system comprises two parallel, spaced-apart channel steel bases, an adjustable support mechanism, and a fan mounting bracket. Each channel steel base is equipped with a pair of adjustable support mechanisms. Each adjustable support mechanism includes a set of elongated adjustable connecting plates, a set of triangular adjustable connecting plates, and an adjusting rod. The two elongated adjustable connecting plates and the two triangular adjustable connecting plates are connected to the two long sides of the channel steel base in pairs. Adjusting rods are provided between the two opposing elongated adjustable connecting plates and between the two opposing triangular adjustable connecting plates. The fan mounting bracket is mounted on the same set of adjustable support mechanisms on the two channel steel bases.

2. The axial flow fan bracket for a movable dry-type transformer according to claim 1, characterized in that: The long, adjustable connecting plate has a fixing hole at the lower end along the center line, four adjustment holes at equal intervals from top to bottom at the upper end, and rounded corners at both ends.

3. The axial flow fan bracket for a movable dry-type transformer according to claim 1, characterized in that: The lower end of the triangular adjustable connecting plate has two fixing holes, and the upper end along the center line has three height adjustment holes from top to bottom. The top end has a rounded corner structure.

4. The axial flow fan bracket for a movable dry-type transformer according to claim 1, characterized in that: The adjusting rod includes a round steel sleeve and a rotatable screw inserted in the round steel sleeve.

5. The axial flow fan bracket for a movable dry-type transformer according to claim 4, characterized in that: The surface of the screw is covered with a 5mm thick silicone sheet.

6. The axial flow fan bracket for a movable dry-type transformer according to claim 5, characterized in that: The aforementioned fan mounting bracket includes two parallel connecting plates and two equilateral angle steels symmetrically arranged between the two connecting plates.

7. A movable dry-type transformer axial flow fan bracket according to claim 6, characterized in that: The two ends of the connecting plate are respectively connected to two round steel sleeves in the adjustable support mechanism.

8. The axial flow fan bracket for a movable dry-type transformer according to claim 7, characterized in that: The equilateral angle steel is provided with multiple elongated slots.

9. A movable dry-type transformer axial flow fan bracket according to claim 8, characterized in that: The width of the connecting plate is the same as the width of the channel steel base.

10. A movable dry-type transformer axial flow fan bracket according to claim 9, characterized in that: Both ends of the connecting plate extend towards the edge of the equilateral angle steel.

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