Fan overhaul frame suitable for cooling tower with top-mounted motor

Abstract

The utility model discloses a fan overhaul frame suitable for a cooling tower with an overhead motor, and belongs to the technical field of cooling towers. Comprising two main beams arranged in parallel, two ends of the main beams are connected with auxiliary beams, supporting beams are symmetrically arranged in the middles of the main beams, and pedal sticks are arranged on the side portions of the supporting beams. The fan frame has the advantages that the fan frame main beam and the fan frame stepping sticks are made of steel pipes, so that air is softer when passing through, wind resistance and noise are reduced, and then energy consumption of a motor is reduced; when a worker carries out maintenance and overhaul, the fan frame stepping stick can be used as a platform, and later maintenance and overhaul of the cooling tower are facilitated. Meanwhile, a fan net can be replaced, and the cost is saved.

Description

Technical Field

[0001] This utility model relates to a fan maintenance rack suitable for motor-mounted cooling towers, belonging to the field of cooling tower technology. Background Technology

[0002] Currently, the fan frame for cooling towers with top-mounted motors is generally made of sheet metal or welded channel steel, with fan mesh laid in the middle and around it. The fan frame is located directly above the air duct outlet, where the air velocity is higher. When air passes through the fan frame, it generates eddies, resulting in significant wind resistance and noise. During the later stages of cooling tower operation, it is necessary to periodically tighten the motor, replace the drive belt, or change the lubricating oil in the reducer. Since the motor and transmission components are located in the middle of the air duct, and the fan mesh laid in the middle of the main beam of the fan frame is relatively soft and cannot bear weight, maintenance or repairs require workers to erect an additional platform to perform the work. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a fan maintenance rack suitable for top-mounted motor cooling towers that reduces wind resistance and facilitates later maintenance and repair.

[0004] The technical solution of this utility model is: a fan maintenance frame suitable for a motor-mounted cooling tower, including a maintenance frame located in the middle of the top of the fan casing, with fan mesh symmetrically arranged on both sides of the maintenance frame. The maintenance frame includes two parallel main beams, with auxiliary beams connected to both ends of the main beams. Support beams are symmetrically arranged in the middle of the main beams, and foot rods are provided on the sides of the support beams.

[0005] A mounting plate for installing a motor is fixed on the support beam, and the output end of the motor drives a fan located in the air duct through a transmission device.

[0006] The transmission device is a speed reducer or a transmission belt.

[0007] Two symmetrically arranged support beams are welded to the bottom sides of the mounting plate, respectively.

[0008] The ends of the auxiliary beams and support beams are all arc-shaped structures, which are attached to and welded to the outer wall of the main beam.

[0009] The main beam is provided with mounting holes for installing foot pedals, and the end of the foot pedal is welded and fixed to the mounting holes.

[0010] The top of the air duct is equipped with an air duct flange, and both ends of the main beam are fixed to the air duct flange.

[0011] The surface of the air duct is provided with longitudinally arranged reinforcing ribs.

[0012] Both the main beam and the footboard are made of steel pipe.

[0013] The beneficial effects of this utility model are: the main beam of the fan frame and the fan frame foot rails are made of steel pipes, which makes the air flow more gently, reduces wind resistance and noise, and thus reduces motor energy consumption; when staff perform maintenance and repair, the fan frame foot rails can be used as a platform, facilitating the later maintenance and repair of the cooling tower. It can also replace the fan mesh, saving costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram illustrating the application of this utility model;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 A schematic diagram showing the connection between the treadle and the main beam;

[0017] Figure 4 This is a schematic diagram showing the connection between the auxiliary beam and the main beam.

[0018] The attached diagram is labeled as follows: 1. Maintenance frame, 1.1. Auxiliary beam, 1.2. Step, 1.3. Main beam, 1.4. Support beam, 2. Motor, 3. Mounting plate, 4. Fan, 5. Fan screen, 6. Air duct, 7. Air duct flange, 8. Reinforcing rib. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-4 Further explanation of this utility model:

[0020] A fan maintenance frame suitable for a top-mounted cooling tower includes a maintenance frame 1 located at the top center of a cooling duct 6. Fan mesh 5 is symmetrically arranged on both sides of the maintenance frame 1. The maintenance frame 1 includes two parallel main beams 1.3. A cooling duct flange 7 is provided at the top of the cooling duct 6. The two ends of the main beams 1.3 are fixed to the cooling duct flange 7. Auxiliary beams 1.1 are connected to both ends of the main beams 1.3. The auxiliary beams 1.1 are used to improve the structural strength of the maintenance frame 1 and ensure consistent width without deformation. Support beams 1.4 are symmetrically arranged in the middle of the main beams 1.3, and footrests 1.2 are provided on the sides of the support beams 1.4. The two symmetrically arranged support beams 1.4 are welded to the bottom sides of the mounting plate 3. The mounting plate 3 for mounting a motor 2 is fixed on the support beams 1.4. The output end of the motor 2 drives the fan 4 located in the cooling duct 6 through a reducer or transmission belt. The maintenance frame 1 serves as a platform for maintenance and repair by personnel, and also protects the fan 4 inside the cooling duct 6 from the fan mesh 5.

[0021] The ends of the auxiliary beam 1.1 and the support beam 1.4 are both arc-shaped structures. The arc-shaped structures are attached to and welded to the outer wall of the main beam 1.3, making the connection between the auxiliary beam 1.1 and the support beam 1.4 and the main beam 1.3 more stable.

[0022] The main beam 1.3 is provided with mounting holes for installing the foot pedal 1.2, and the end of the foot pedal 1.2 is welded to the mounting hole for fixation. The combination of plug-in and welding connection makes the connection between the foot pedal 1.2 and the main beam 1.3 more stable.

[0023] The surface of the air duct 6 is provided with longitudinally arranged reinforcing ribs 8 to enhance the rigidity of the air duct.

[0024] Both the main beam 1.3 and the footplate 1.2 are made of steel pipes. Steel pipes allow air to pass through more gently, reducing wind resistance and noise, thereby reducing motor energy consumption.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fan maintenance rack suitable for a motor-mounted cooling tower, characterized in that, The system includes a maintenance frame (1) located at the top center of the air duct (6), and fan mesh (5) symmetrically arranged on both sides of the maintenance frame (1). The maintenance frame (1) includes two parallel main beams (1.3), with auxiliary beams (1.1) connected to both ends of the main beams (1.3). Support beams (1.4) are symmetrically arranged in the middle of the main beams (1.3), and step rods (1.2) are provided on the sides of the support beams (1.4). The ends of the auxiliary beam (1.1) and the support beam (1.4) are both arc-shaped structures, and the arc-shaped structures are attached to and welded to the outer wall of the main beam (1.3); The main beam (1.3) is provided with mounting holes for mounting a foot pedal (1.2), and the end of the foot pedal (1.2) is welded and fixed to the mounting hole.

2. The fan maintenance rack for a motor-mounted cooling tower according to claim 1, characterized in that, The support beam (1.4) is fixed with a mounting plate (3) for mounting the motor (2), and the output end of the motor (2) drives the fan (4) located in the air duct (6) through a transmission device.

3. A fan maintenance rack suitable for a motor-mounted cooling tower according to claim 2, characterized in that, The transmission device is a speed reducer or a transmission belt.

4. A fan maintenance rack suitable for a motor-mounted cooling tower according to claim 2, characterized in that, Two symmetrically arranged support beams (1.4) are welded to the bottom sides of the mounting plate (3).

5. A fan maintenance rack suitable for a motor-mounted cooling tower according to claim 1, characterized in that, The top of the air duct (6) is provided with an air duct flange (7), and the two ends of the main beam (1.3) are fixed on the air duct flange (7).

6. A fan maintenance rack suitable for a motor-mounted cooling tower according to claim 1, characterized in that, The surface of the air duct (6) is provided with longitudinally arranged reinforcing ribs (8).

7. A fan maintenance rack suitable for a motor-mounted cooling tower according to claim 1, characterized in that, Both the main beam (1.3) and the footboard (1.2) are steel pipes.

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