CN220470298U

CN220470298U - Axial-flow ventilator

Info

Publication number: CN220470298U
Application number: CN202322147634.7U
Authority: CN
Inventors: 徐斌; 罗门波; 任勇; 尚小洲
Original assignee: Shaanxi Jiahui Power Technology Co ltd
Current assignee: Shaanxi Jiahui Power Technology Co ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-02-09
Anticipated expiration: 2033-08-10

Abstract

The utility model discloses an axial flow fan, which comprises a shell, a motor and an impeller assembly, wherein the shell is provided with a motor and a motor; the device also comprises an air inlet box and a diffusion cylinder; the air outlet end of the diffusion cylinder is connected with the outlet reducer pipe through an outlet flexible connection; the inlet end of the inlet box is connected with the inlet reducer pipe through the inlet flexible connection, and the problems that an axial flow fan shell in the prior art is poor in air inlet effect and cannot be well adapted to complex application environments due to the fact that the structure of the axial flow fan shell is simple are solved.

Description

Axial-flow ventilator

Technical Field

The utility model relates to the technical field of ventilation equipment, in particular to an axial flow fan.

Background

An axial-flow fan is the most commonly used ventilation air supply device in the market at present, and the air of the axial-flow fan flows parallel to the axial flow of the fan, namely, the air flows in the same direction with the axis of a fan blade; is generally suitable for occasions with higher flow requirements and lower pressure requirements. The general axial fan can be used for ventilation in common factories, warehouses, offices, houses and other places, can also be used for air coolers (air coolers), evaporators, condensers, spray drops and the like, and also comprises a mining axial fan, and the anti-corrosion and anti-explosion axial fan adopts anti-corrosion materials and anti-explosion measures and is matched with an anti-explosion motor, so that the anti-explosion axial fan can be used for conveying explosive, volatile and corrosive gases. At present, the shell structure of an axial flow fan is mostly simpler, for example, a low-noise axial flow fan is described in Chinese published patent No. CN202020393086.X, and the low-noise axial flow fan comprises a shell and an impeller rotatably arranged in the shell, wherein the impeller is connected with a driving device for driving the impeller to rotate, the shell comprises an air inlet and an air outlet, and a sound absorption and noise reduction device is arranged at the air inlet; the sound absorbing and noise reducing device comprises a fairing arranged on the outer side of the air inlet, an air flow channel of the fairing is communicated with an air flow channel of the shell, the outer side and the inner side of the fairing are respectively coated with outer sound absorbing cotton and inner sound absorbing cotton, and the inner sound absorbing cotton is integrally embedded on the inner wall of the fairing.

The noise problem of the fan is improved by the axial flow fan in the prior art, but the air inlet effect is poor and the problem of complex application environment cannot be well adapted due to the simple shell structure.

Disclosure of Invention

The utility model aims to solve the problems that an axial flow fan shell in the prior art is poor in air inlet effect and cannot be well adapted to complex application environments due to a simple structure.

The aim of the utility model is achieved by the following technical scheme: an axial flow fan comprises a shell, a motor and an impeller assembly; the device also comprises an air inlet box and a diffusion cylinder; the air outlet end of the diffusion cylinder is connected with the outlet reducer pipe through an outlet flexible connection; the air inlet end of the air inlet box is connected with the inlet reducer pipe through an inlet flexible connection;

further, the outlet flexible connection comprises a first connecting ring, a second connecting ring and a first hose; two ends of the first hose are respectively connected with the first connecting ring and the second connecting ring; the first connecting ring is used for being connected with the edge of the diffusion cylinder; the second connecting ring is used for being connected with the edge of the outlet reducer pipe;

further, the inlet flexible connection comprises a third connecting ring, a fourth connecting ring and a second hose; two ends of the second hose are respectively connected with the third connecting ring and the fourth connecting ring; the third connecting ring is used for being connected with the edge of the air inlet box; the fourth connecting ring is used for being connected with the edge of the inlet reducer pipe;

further, a cooling fan is arranged below one side of the diffusion cylinder; an air inlet is arranged on the diffusion cylinder corresponding to the air outlet of the cooling fan;

further, a sealing cover is movably arranged on the air inlet;

further, the impeller assembly comprises a rotating shaft, a wheel disc and blades; the rotating shaft is connected with the motor output shaft; the wheel disc is connected with the rotating shaft; the blades are radially distributed on the wheel disc;

the further technical proposal is that the wheel disc is coaxial with the rotating shaft; the wheel disc is coaxial with the diffusion cylinder.

The utility model has the following advantages:

1. the air inlet box and the diffusion cylinder are beneficial to improving the air inlet effect and the air outlet effect, the flexible connection of the outlet is beneficial to improving the flexibility of the joint of the diffusion cylinder and the outlet reducer pipe, and the service life is prolonged; the flexible connection of the outlet is beneficial to improving the flexibility of the connection part of the air inlet box and the inlet reducer pipe and prolonging the service life;

2. the outlet reducer pipe and the inlet reducer pipe are beneficial to being suitable for different use sites, and the application range is enlarged.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the inlet box installation.

Fig. 3 is a schematic view of a diffusion barrel installation.

Fig. 4 is a schematic view of the impeller structure.

In the figure: 1. a housing; 2. a motor; 3. an impeller assembly; 4. the outlet is in soft connection; 5. an outlet reducer; 6. soft connection of the inlet; 7. an inlet reducer pipe; 8. a first connection ring; 9. a second connection ring; 10. a first hose; 11. a third connection ring; 12. a fourth connection ring; 13. a second hose; 14. a cooling fan; 15. an air inlet; 16. a rotating shaft; 17. a wheel disc; 18. a blade; 19. an air inlet box; 20. a diffusion cylinder.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1: as shown in fig. 1 to 4, an axial flow fan comprises a housing 1, a motor 2 and an impeller assembly 3; also comprises an air inlet box 19 and a diffusion cylinder 20 which are communicated; the air outlet end of the diffusion cylinder 20 is connected with an outlet reducer pipe 5 through an outlet flexible connection 4; the air inlet end of the air inlet box 19 is connected with the inlet reducer pipe 7 through the inlet flexible connection 6; in the embodiment, the motor 2 drives the impeller assembly 3 to rotate; the air inlet box 19 and the diffusion cylinder 20 are beneficial to improving the air inlet effect and the air outlet effect, the flexible connection 4 of the outlet is beneficial to improving the flexibility of the connection part of the diffusion cylinder 20 and the outlet reducer pipe 5, and the service life is prolonged; the outlet flexible connection 4 is beneficial to improving the flexibility of the connection part of the air inlet box 19 and the inlet reducer pipe 7 and prolonging the service life; the outlet reducer pipe 5 and the inlet reducer pipe 7 are beneficial to being suitable for different use sites, and the application range is enlarged.

The outlet flexible connection 4 comprises a first connecting ring 8, a second connecting ring 9 and a first hose 10; two ends of the first hose 10 are respectively connected with the first connecting ring 8 and the second connecting ring 9; the first connecting ring 8 is used for being connected with the edge of the diffusion cylinder 20; the second connecting ring 9 is used for being connected with the edge of the outlet reducer pipe 5; in this embodiment, the first connecting ring 8 and the second connecting ring 9 are made of conventional rigid materials with certain mechanical strength, and any one of reasonable materials can be selected according to the needs; the first connecting ring 8 and the second connecting ring 9 are convenient to be connected with the edge of the diffusion cylinder 20 and the edge of the outlet reducer pipe 5 in a stable butt joint manner, for example, bolts, nuts or welding is adopted; the first hose 10 is made of a material with certain mechanical strength and elastic deformation force so as to realize soft connection, and two ends of the first hose 10 can be connected with the first connecting ring 8 and the second connecting ring 9 in an adhesive mode.

The inlet flexible connection 6 comprises a third connecting ring 11, a fourth connecting ring 12 and a second hose 13; two ends of the second hose 13 are respectively connected with the third connecting ring 11 and the fourth connecting ring 12; the third connecting ring 11 is used for being connected with the edge of the air inlet box 19; the fourth connecting ring 12 is used for being connected with the edge of the inlet reducer pipe 7; in this embodiment, the third connecting ring 11 and the fourth connecting ring 12 are made of conventional rigid materials with certain mechanical strength, and any one of reasonable materials can be selected according to the needs; the third connecting ring 11 and the fourth connecting ring 12 are convenient to be connected with the edge of the air inlet box 19 and the edge of the inlet reducer pipe 7 in a stable butt joint manner, for example, bolts, nuts or welding is adopted; the second hose 13 is made of a material with a certain mechanical strength and elastic deformation force so as to realize soft connection, and two ends of the second hose 13 can be connected with the third connecting ring 11 and the fourth connecting ring 12 in an adhesive mode.

A cooling fan 14 is arranged below one side of the diffusion cylinder 20; an air inlet 15 is arranged on the diffusion cylinder 20 corresponding to the air outlet of the cooling fan 14; when the internal temperature of the axial flow fan is too high, the cooling fan 14 can be opened to send cold air into the diffusion cylinder 20 for cooling.

A sealing cover is movably arranged on the air inlet 15; the cover facilitates closing of the air inlet 15 when cooling is not taking place.

The impeller assembly 3 comprises a rotating shaft 16, a wheel disc 17 and blades 18; the rotating shaft 16 is connected with the output shaft of the motor 2; the wheel disc 17 is connected with the rotating shaft 16; the blades 18 are radially distributed on the wheel disc 17; in the embodiment, the rotating shaft 16 is connected with the output shaft of the motor 2 in a conventional connection and installation mode; the rotating shaft 16 is driven by the motor 2 to rotate, so as to drive the wheel disc 17 and the blades 18 on the wheel disc to rotate, and axial flow ventilation is realized.

The wheel disc 17 is coaxial with the rotation shaft 16; the wheel disc 17 is coaxial with the diffusion cylinder 20; in this embodiment, the disk 17 is coaxial with the rotation shaft 16, and the disk 17 is coaxial with the diffusion cylinder 20 to facilitate axial flow ventilation.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. An axial flow fan comprises a shell, a motor and an impeller assembly; the method is characterized in that: the device also comprises an air inlet box and a diffusion cylinder; the air outlet end of the diffusion cylinder is connected with the outlet reducer pipe through an outlet flexible connection; the air inlet end of the air inlet box is connected with the inlet reducer pipe through an inlet flexible connection.

2. The axial flow fan according to claim 1, wherein: the outlet flexible connection comprises a first connecting ring, a second connecting ring and a first hose; two ends of the first hose are respectively connected with the first connecting ring and the second connecting ring; the first connecting ring is used for being connected with the edge of the diffusion cylinder; the second connecting ring is used for being connected with the edge of the outlet reducer pipe.

3. The axial flow fan according to claim 1, wherein: the inlet flexible connection comprises a third connecting ring, a fourth connecting ring and a second hose; two ends of the second hose are respectively connected with the third connecting ring and the fourth connecting ring; the third connecting ring is used for being connected with the edge of the air inlet box; the fourth connecting ring is used for being connected with the edge of the inlet reducer pipe.

4. The axial flow fan according to claim 1, wherein: a cooling fan is arranged below one side of the diffusion cylinder; and an air inlet is arranged on the diffusion cylinder corresponding to the air outlet of the cooling fan.

5. The axial fan according to claim 4, wherein: and a sealing cover is movably arranged on the air inlet.

6. The axial flow fan according to claim 1, wherein: the impeller assembly comprises a rotating shaft, a wheel disc and blades; the rotating shaft is connected with the motor output shaft; the wheel disc is connected with the rotating shaft; the blades are radially distributed on the wheel disc.

7. The axial flow fan according to claim 6, wherein: the wheel disc is coaxial with the rotating shaft; the wheel disc is coaxial with the diffusion cylinder.