Honeycomb type axial flow fan rear rectifier

Abstract

The utility model relates to the technical field of rectifiers, and provides a honeycomb type axial flow fan rear rectifier which is of a multi-layer structure formed by a plurality of rings which are sleeved together, the rings are coaxially arranged, a gap is formed between every two adjacent rings, and every two adjacent rings are fixed together through a plurality of flow deflectors. The plurality of flow deflectors are uniformly arranged around the axis of the circular ring; a connecting base used for being connected with an axial flow fan is fixed to the end of the circular ring on the outermost layer. According to the technical scheme, the problem that in the prior art, an axial flow fan is low in rectification efficiency is solved.

Description

Technical Field

[0001] This utility model relates to the field of rectifier technology, and in particular to a rectifier after a honeycomb axial flow fan. Background Technology

[0002] An axial flow fan is a ventilation device that uses rotating blades to propel gas axially. The airflow direction is parallel to the fan's axis, similar to the operation of a propeller. An axial flow fan consists of an impeller, casing, inlet, and motor. The motor drives the impeller to rotate, and the blades propel the gas axially at an accelerated speed. The gas gains kinetic energy under the action of the impeller, some of which is converted into static pressure energy, and is finally discharged through the outlet, achieving ventilation, dust removal, or cooling effects. The rectifier is a key component for optimizing airflow paths and improving equipment performance. Rectifiers using a single duct or orifice plate design guide airflow through simple channels, resulting in low rectification efficiency. There is an urgent need for a rectifier with higher rectification efficiency. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a honeycomb axial flow fan post-rectifier, the specific solution of which is as follows:

[0004] A honeycomb axial flow fan rear rectifier includes a multi-layer structure formed by multiple nested rings. The multiple rings are arranged coaxially, with a gap between adjacent rings, and adjacent rings are fixed together by multiple guide vanes. The multiple guide vanes are evenly arranged around the axis of the rings. The end of the outermost ring is fixed with a connecting seat for connecting to the axial flow fan.

[0005] Preferably, the guide vanes of adjacent layers are arranged in an alternating pattern.

[0006] Preferably, bolt holes are arranged on the connecting seat.

[0007] Preferably, the guide vane has a trapezoidal structure, with its upper and lower bottoms fixedly connected to the inner walls of its corresponding two circular rings, and its vertical part close to the side where the connecting seat is located, and its sloping waist is straight.

[0008] Preferably, the guide vane has a trapezoidal structure, with its upper and lower bottoms fixedly connected to the inner walls of its corresponding two circular rings, and its vertical part near the side where the connecting seat is located has an inwardly concave arc shape on its sloping waist.

[0009] This utility model has the following beneficial effects:

[0010] 1. A multi-layered structure formed by multiple nested rings, with gaps between adjacent rings and multiple guide vanes between adjacent rings, constitutes a honeycomb rectifier. Through the rectification of the honeycomb structure, large-scale vortices are divided into small-scale vortices, thereby improving rectification efficiency.

[0011] 2. The guide vanes are arranged in an alternating pattern to guide the fluid to be evenly distributed to each flow channel, avoiding local flow velocities that are too fast or too slow.

[0012] 3. The inclined waist is straight, which reduces local resistance when the fluid changes direction and reduces energy loss.

[0013] 4. The sloping waist has an inwardly concave arc shape, which allows the fluid to move in an orderly manner along the direction of the concave part, changing the airflow direction and reducing the resistance caused by sudden changes in flow direction. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of the rectifier after a honeycomb axial flow fan;

[0015] Figure 2 This is a front view of the rectifier after the honeycomb axial flow fan.

[0016] Figure 3 This is a cross-sectional schematic diagram of the rectifier and the axial flow fan after the honeycomb axial flow fan.

[0017] Legend:

[0018] 1. Circular ring; 2. Guide vane; 3. Connecting seat; 4. Bolt hole; 5. Axial flow fan. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figures 1-3 A honeycomb-type axial flow fan rear rectifier includes a multi-layer structure formed by multiple nested rings 1. The rings 1 are coaxially arranged, with a gap between adjacent rings 1, and are fixed together by multiple guide vanes 2. The guide vanes 2 are evenly arranged around the axis of the rings 1, forming a honeycomb-type rear rectifier. Through the honeycomb structure, large-scale vortices are divided into smaller-scale vortices, improving rectification efficiency. The guide vanes 2 of adjacent layers are staggered, guiding the fluid to be evenly distributed to each flow channel. The guide vanes 2 have a trapezoidal structure, with their upper and lower bases fixedly connected to the inner walls of their corresponding two rings 1. The vertical part near the connecting seat has an inwardly concave arc shape (e.g., ...). Figure 1 As shown), or with a sloping waist in a straight line (such as...). Figure 3As shown in the diagram, the fluid moves along the direction of the guide vane 2, changing the airflow direction and reducing the resistance caused by the sudden change in flow direction. The end of the outermost ring 1 is fixed with a connecting seat 3 for connecting to the axial flow fan 5. The connecting seat is provided with bolt holes 4 to facilitate the connection of the axial flow fan 5, making the connection between the axial flow fan 5 and the rectifier more convenient.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A honeycomb axial fan aft fairing characterized by: The multilayer structure comprises multiple annular rings, the multiple annular rings are coaxially arranged, there is a gap between two adjacent annular rings, and the two adjacent annular rings are fixed together by multiple guide vanes, the multiple guide vanes are uniformly arranged around the axis of the annular rings, and the end of the outermost annular ring is fixed with a connecting seat for connecting with an axial flow fan.

2. A honeycomb axial fan aft fairing according to claim 1, characterized in that: The guide vanes of two adjacent layers are staggered.

3. A honeycomb axial fan aft fairing according to claim 1, characterized in that: A bolt hole is arranged on the connecting seat.

4. A honeycomb axial fan aft fairing according to claim 1, characterized in that: The guide vane is in a trapezoidal structure, the upper and lower bottoms of the guide vane are fixedly connected with the inner walls of the corresponding two annular rings respectively, the vertical part of the guide vane is close to one side of the connecting seat, and the oblique waist of the guide vane is in a straight line type.

5. A honeycomb axial fan aft fairing according to claim 1, characterized in that: The guide vane is in a trapezoidal structure, the upper and lower bottoms of the guide vane are fixedly connected with the inner walls of the corresponding two annular rings respectively, the vertical part of the guide vane is close to one side of the connecting seat, and the oblique waist of the guide vane is in an arc type which is inwardly recessed.

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