CN217002334U

CN217002334U - Fluid director structure and fan

Info

Publication number: CN217002334U
Application number: CN202123304595.4U
Authority: CN
Inventors: 齐梓帆; 范志强; 雷新海; 雷新江
Original assignee: Greatall Power Co ltd
Current assignee: Greatall Power Co ltd
Priority date: 2021-12-25
Filing date: 2021-12-25
Publication date: 2022-07-19
Anticipated expiration: 2031-12-25

Abstract

The utility model discloses a fluid director structure and a fan, which comprise a fluid director body with an inlet end and an outlet end, wherein the inlet end and the outlet end of the fluid director body are respectively provided with an outwards-opened arc-shaped flaring, the radius of an inlet arc section of the inlet end is 1.2-1.5 times of the diameter of the fluid director body, an outlet arc section of the outlet end is an impeller molded line, and a boss is arranged outside the fluid director body. The utility model strengthens the stability of the machine, improves the efficiency of the machine and the adjustable working condition range and reduces the noise of the machine at the same time by restricting and guiding the inlet airflow.

Description

Fluid director structure and fan

Technical Field

The utility model belongs to the technical field of air blowers, and particularly relates to a flow guider structure adopted by an air blower and a fan with the flow guider structure.

Background

The inlet flow guider is an important component of a single-stage centrifugal blower flow passage. Common inlet flow directors include straight cylindrical inlet flow directors and tapered inlet flow directors. The gas flows into the impeller and the volute through the inlet fluid director, reaches certain pressure and flow through the rotation of the impeller, and then flows out through the volute outlet. In the process, the stability that the gas flowed in is especially important, not only can reduce extra loss, and raise the efficiency can also reduce the noise of fan.

The existing structure mainly comprises a straight cylinder inlet fluid director and a conical inlet fluid director, and is characterized by low cost and large gas flow. However, the guiding of the inlet gas flow is insufficient, the inlet gas flow cannot be adjusted under the requirement of a specific working condition, and meanwhile, the monitoring means is limited, and relevant parameters such as the pressure, the flow speed and the temperature of the inlet gas cannot be obtained in time. Therefore, the design of the inlet flow guide of the fan is particularly important.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the existing structure, the utility model provides the flow guider structure which improves the stability of the machine by restricting and guiding the inlet airflow.

In order to achieve the purpose, the utility model provides the following technical scheme:

a flow guider structure comprises a flow guider body with an inlet end and an outlet end, wherein the inlet end and the outlet end are both arc-shaped flaring openings which are opened outwards;

the radius of the inlet arc section of the inlet end is 1.2-1.5 times of the diameter of the fluid director body, and the outlet arc section of the outlet end is an impeller molded line.

Preferably, the radius of the inlet arc section of the inlet end is 1.35 times of the diameter of the deflector body.

According to the utility model, through the design of the radius of the inlet arc section of the inlet end, a good airflow restraining and guiding effect can be realized, so that the stability of the fan can be improved, and the noise of the fan can be effectively reduced.

Preferably, a boss is arranged outside the deflector body.

Preferably, the boss is annularly arranged along the periphery of the deflector body.

Preferably, a plurality of the bosses are uniformly distributed along the periphery of the fluid director body and on the same section perpendicular to the central axis of the fluid director body.

Preferably, the boss is provided with a through hole penetrating into the fluid director body.

Preferably, the inlet end extends outward in a direction perpendicular to a central axis of the deflector body and forms a first annular fixing portion.

Preferably, the outlet end extends outwards along a direction perpendicular to a central axis of the fluid director body to form a second annular fixing portion, and the second annular fixing portion and the end face of the outlet end form a groove structure.

Preferably, a plurality of first fixing holes are uniformly distributed on the first annular fixing part.

Preferably, a plurality of second fixing holes are uniformly distributed on the second annular fixing part.

Meanwhile, the utility model also provides a fan which comprises a fan main body, wherein the fan main body is arranged inside the fluid director body of the fluid director structure, and an impeller of the fan main body is arranged close to the outlet end.

Compared with the prior art, the utility model has the following beneficial effects:

1) the air guide structure at the inlet of the fan designed by the utility model can be matched with various single-stage centrifugal blowers, and has a wide application range.

2) According to the inlet fluid director structure of the fan, the inlet and the outlet of the inlet fluid director structure are respectively provided with the arc-shaped flaring openings which are flared outwards, the radius of the inlet arc is preferably designed to be 1.35 times of the diameter of the fluid director body, the outlet arc of the fluid director is designed to be the impeller profile, the effect of effectively restraining and guiding air flow is good, the stability of the fan is improved, and the noise of the fan is effectively reduced.

3) According to the utility model, the boss is arranged outside the fluid director body, the axial size of the fluid director is fully utilized, a transformation space is reserved for the gas flow regulating device, and the pressure tapping holes are drilled in four directions, so that monitoring devices such as a sensor, a flowmeter and a temperature sensor can be conveniently installed.

Drawings

FIG. 1 is a schematic view of a fan inlet flow director structure according to the present invention;

fig. 2 is a 3D schematic view of a fan inlet flow director structure of the present invention.

The reference numerals shown in the figures are as follows:

1. an inlet arc section; 2. a boss; 3. a through hole; 4. an outlet arc segment; 5. a fluid director body; 6. a first annular fixing portion; 7. an O-shaped ring groove; 8. a second annular fixing portion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 2, the present embodiment provides a fluid director structure, which includes a fluid director body 5 having an inlet end and an outlet end, wherein the inlet end and the outlet end are both arc-shaped flares that are opened outwards; the radius of the inlet arc section 1 of the inlet end is 1.2-1.5 times of the diameter of the fluid director body 5, and the outlet arc section 4 of the outlet end is an impeller molded line.

The size of the outlet arc section 4 of the impeller molded line is determined according to the outer diameters of impellers of different models, and the outlet arc section is determined according to the impeller molded lines of different models.

Meanwhile, the utility model is provided with a boss 2 outside the fluid director body 5, and the boss 2 is provided with a through hole 3 penetrating to the interior of the fluid director body 5. The boss reserves space for the inlet flow regulating device, and simultaneously, through holes 3 are drilled in four horizontal directions respectively, so that monitoring devices such as a sensor, a flowmeter, a temperature sensor and the like can be conveniently installed, and the size of each through hole is determined according to the size of the selected sensor.

During the specific design, the bosses 2 may be arranged in various forms, such as being annularly arranged along the outer periphery of the fluid director body 5, and the bosses 2 may also be arranged in a manner of being uniformly distributed on the same section perpendicular to the central axis of the fluid director body 5 along the outer periphery of the fluid director body 5.

Further, the utility model extends outwards along the direction vertical to the central axis of the fluid director body 5 at the inlet end and forms a first annular fixing part 6, and extends outwards along the direction vertical to the central axis of the fluid director body 5 at the outlet end and forms a second annular fixing part 8, and the second annular fixing part 8 and the end surface of the outlet end form a groove structure.

Moreover, a plurality of first fixing holes are uniformly distributed on the first annular fixing part 6, and a plurality of second fixing holes are uniformly distributed on the second annular fixing part 8. Can additionally install filter, dust screen etc. through the first fixed orifices that sets up, the second fixed orifices can be connected with fan main part fastening.

In addition, an O-shaped ring groove 7 is formed in a groove structure formed on the end face of the second annular fixing portion 8 and the end face of the outlet end, and an O-shaped ring is installed in the O-shaped ring groove 7 to enhance the sealing effect and prevent gas from leaking.

Preferably, the above-mentioned deflector structure is provided as an integral structure, and can be formed by casting.

Example 2

The present embodiment provides a fan, which includes a fan main body, and the fan main body is disposed inside the fluid director body 5 of the fluid director structure of embodiment 1, and an impeller of the fan main body is disposed near the outlet end.

When the air deflector is used, the second annular fixing parts 8 are uniformly provided with the second fixing holes to be connected with the fan main body, and the main body part of the fan main body is arranged inside the air deflector body 5, so that the air deflector structure and the fan main body in the embodiment 1 can be assembled.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. The utility model provides a divertor structure, its includes divertor body (5) that possess entrance point and exit end, entrance point and exit end are outside open convex flaring, its characterized in that:

the radius of the inlet arc section (1) of the inlet end is 1.2-1.5 times of the diameter of the fluid director body (5), and the outlet arc section (4) of the outlet end is an impeller molded line.

2. A deflector construction as recited in claim 1, wherein: and a boss (2) is arranged outside the fluid director body (5).

3. A deflector construction as recited in claim 2, wherein: the boss (2) is annularly arranged along the periphery of the fluid director body (5).

4. A deflector construction as recited in claim 2, wherein: the bosses (2) are uniformly distributed on the section which is perpendicular to the central axis of the fluid director body (5) along the periphery of the fluid director body (5).

5. A deflector structure according to any one of claims 2 to 4, characterized in that: the boss (2) is provided with a through hole (3) penetrating into the fluid director body (5).

6. A deflector construction according to claim 1 or 2, characterized in that: the inlet end extends outwards in a direction perpendicular to the central axis of the deflector body (5) and forms a first annular fixing portion (6).

7. A deflector structure according to claim 1 or 2, characterized in that: the outlet end extends outwards along the direction perpendicular to the central axis of the fluid director body (5) to form a second annular fixing part (8), and the second annular fixing part (8) and the end face of the outlet end form a groove structure.

8. A deflector structure as recited in claim 6, wherein: a plurality of first fixing holes are uniformly distributed on the first annular fixing part (6).

9. A deflector construction as recited in claim 7, wherein: a plurality of second fixing holes are uniformly distributed on the second annular fixing part (8).

10. The utility model provides a fan, includes the fan main part, its characterized in that: the fan main body is disposed inside the deflector body (5) of the deflector structure according to claim 1, and an impeller of the fan main body is disposed near the outlet end.