CN211550020U - Novel many air outlets centrifugal fan - Google Patents

Abstract

The utility model provides a novel many air outlets centrifugal fan, include: casing, impeller, motor, be a plurality of air outlets of fan-shaped arrangement, set up in air outlet outside water conservancy diversion part, water conservancy diversion part is used for adjusting the angle of air-out. The fan further comprises a wind cutting component arranged on the inner wall of the shell, airflow moving in the shell is guided to the air outlets when the fan works, and the air output of the air outlets is the same through adjustment of the size of the wind cutting component and the inclination angle. The utility model discloses in through reasonable setting cut wind part, a plurality of air outlets of water conservancy diversion part cooperation realized remote, multi-direction and the even requirement of air supply volume.

Description

Novel many air outlets centrifugal fan

Technical Field

The utility model belongs to the technical field of plant protection machinery, especially, relate to a novel many air outlets centrifugal fan.

Background

The centrifugal fan mainly accelerates gas by using an impeller rotating at a high speed, changes the flow direction at the same time, and then decelerates to convert kinetic energy into potential energy. The gas enters the impeller from an axial direction, changes to a radial direction as it flows through the impeller, and then enters the diffuser where it changes flow direction and the increase in cross-sectional area of the conduit slows the gas flow, which converts kinetic energy into pressure energy. The pressure increase occurs primarily in the impeller and secondarily in the diffusion process.

Because of being limited by the air outlet form and the overall dimension of the traditional centrifugal fan, the low air-assisted plant protection spraying machine applicable to hilly and mountainous areas cannot be directly used. If directly use traditional centrifugal fan, can lead to air-assisted plant protection sprayer height superelevation, trafficability characteristic poor, air to send the angle to subalternation problem.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model adopts the following technical scheme:

a novel multi-air-outlet centrifugal fan comprises: the air conditioner comprises a shell, a fan and a control device, wherein the shell consists of a first surface, a second surface and a circumferential surface, the first surface and the second surface are opposite, the circumferential surface is adjacent to the position between the first surface and the second surface, an air inlet is formed in the first surface, and an air inlet cover is arranged outside the air inlet; the impeller is arranged in the shell, and the distance between the impeller and the shell is increased along a spiral line; the air outlets are formed in the circumferential surface, are multiple in number and are arranged in a fan shape, and air supply in multiple directions is achieved; the flow guide component is arranged outside the air outlets, so that the air outlet angle of each air outlet can be adjusted; the air cutting component is arranged on the inner wall of the shell and used for guiding airflow moving in the shell to each air outlet when the fan works; the motor is fixedly arranged on the second surface of the shell through a motor mounting plate, and an output shaft of the motor is connected with the impeller and used for driving the impeller to rotate.

Preferably, the first surface and the second surface are metal plates, and the circumferential surface is a metal cylindrical plate.

Further, the air outlet has a regular geometric shape, and preferably, the air outlet is circular or oval.

Preferably, the flow guide part comprises a plurality of flow guide sheets.

Preferably, the wind-cutting member includes a plurality of wind-cutting blades, the wind-cutting blades are swingable, the wind-cutting blades are located between the outer edge of the impeller and the inner wall of the circumferential surface, and the wind-cutting blade side is curved inward in cross section.

Preferably, the air cutting sheets are arranged on the inner wall of the shell corresponding to the inner sides of the air outlets, and the air cutting sheets are obliquely arranged, namely, a certain included angle is formed between the air cutting sheets and an inner normal line.

Furthermore, when the fan works, the air volume of the corresponding area inside each air outlet changes along the spiral line of the shell; the width size of the air cutting piece is in inverse proportion to the air volume of the area where the air cutting piece is located, and the included angle between the air cutting piece and the inner normal is in direct proportion to the air volume of the area where the air cutting piece is located.

Preferably, the motor is a hydraulic motor.

The utility model discloses for prior art's advantage lie in:

(1) the utility model discloses can satisfy small-size plant protection sprayer and use, can be under the prerequisite of effective control fan size, the amount of wind and the air-out angle of every air outlet can be adjusted according to actual demand, guarantee the air-out homogeneity in novel many air outlets, satisfy the requirement of wind-powered plant protection sprayer, the suitability is strong.

(2) The utility model discloses a hydraulic motor drive, automated control opens and closes according to in service behavior is automatic opens and closes, improves the operating efficiency.

(3) The utility model discloses a part assembly, the nimble convenience of dismouting is convenient for maintain.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the housing structure of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a schematic view of the structure of the air inlet cover;

fig. 5 is a schematic view of the installation of the motor and the impeller of the present invention.

The reference numerals in the drawings denote:

12. the air outlet, 1, first face, 2, barrel plate, 3, water conservancy diversion piece, 4, second face, 5, impeller, 6, air inlet cover, 7, motor mounting panel, 8, motor.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments.

The preferred embodiments of the invention are given in the present description and in the accompanying drawings, but the invention can be implemented in many different forms and is not limited to the embodiments described in the present description. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As shown in fig. 1 to 5, the present embodiment provides a novel centrifugal fan with multiple air outlets, including: the air conditioner comprises a shell, a plurality of air outlets 12, a plurality of flow deflectors 3, a plurality of air cutting sheets, an impeller 5 and a motor 8. Wherein, the casing is formed by first face 1, second face 4 and the welding of barrel plate 2, has seted up the air intake on first face 1, is provided with air inlet cover 6 in the air intake outside, and in this scheme, the casing is the volute form, and the distance between impeller 5 and the casing is by little grow along the helix. Further, an impeller 5 of the fan is disposed in the housing. Further, in order to realize air supply in multiple directions, the blower is provided with a plurality of circular air outlets 12 on the barrel plate 2, and each air outlet 12 is in a fan shape and is arranged at equal intervals. Further, in order to obtain a larger air outlet adjusting angle, the fan installs the flow deflectors 3 at one side of each air outlet 12. Furthermore, the top end of the air cutting sheet is welded on the inner wall of the cylinder plate 2 at the corresponding position of the inner side of each air outlet 12, the two sides of the air cutting sheet are bent inwards to form a semi-surrounding shape, the air gathering effect is enhanced, the air cutting sheet is positioned between the outer edge of the impeller 5 and the inner wall of the cylinder plate 2, and the air cutting sheet is used for guiding air flow moving when the fan works to each air outlet 12. Further, when the fan works, because the air volume of the corresponding area at the inner side of each air outlet 12 is changed along the spiral line of the shell, correspondingly, the width size of each air cutting piece and the included angle between each air cutting piece and the inner normal are different. In order to realize that the air output of each air outlet 12 is basically the same, in the present embodiment, the width of each air cutting piece is gradually increased from left to right, and the length is unchanged; meanwhile, the included angle between the wind cutting sheet and the inner normal line is gradually reduced from 20 degrees to 5 degrees. Further, this scheme has adopted hydraulic motor 8, passes through motor mounting panel 7 fixed mounting with hydraulic motor 8 on the riser behind the casing, and the output shaft and the impeller 5 of motor are connected for drive impeller 5 is rotatory, chooses for use hydraulic motor's advantage to lie in that occupation space is little, realize the fan through control system very conveniently to hydraulic motor's control and open and close.

The utility model discloses a neotype fan shell cooperation impeller is rotatory and rational arrangement water conservancy diversion part and surely wind part have optimized sprayer spraying distance and spraying effect, are satisfying under the sprayer passes through the prerequisite of height, have realized the air-assisted distance and the air-assisted height requirement. Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims (8)

1. The utility model provides a novel many air outlets centrifugal fan which characterized in that includes: the shell consists of a first surface, a second surface and a circumferential surface, wherein the first surface and the second surface are opposite, and the circumferential surface is adjacent to the space between the first surface and the second surface; the first surface is provided with an air inlet, and an air inlet cover is arranged outside the air inlet; the impeller is arranged in the shell, and the distance between the impeller and the shell is increased along a spiral line; the air outlets are formed in the circumferential surface, are multiple in number and are arranged in a fan shape, and air supply in multiple directions is achieved; the flow guide component is arranged outside the air outlets, so that the air outlet angle of each air outlet can be adjusted; the air cutting component is arranged on the inner wall of the shell and used for guiding airflow moving in the shell to each air outlet when the fan works; and the motor is fixedly arranged on the second surface of the shell through a motor mounting plate, and an output shaft of the motor is connected with the impeller and used for driving the impeller to rotate.

2. The new centrifugal fan with multiple air outlets as claimed in claim 1, wherein the first and second surfaces are metal plates, and the circumferential surface is a metal cylindrical plate.

3. The novel multi-outlet centrifugal fan as claimed in claim 1, wherein the flow guide part comprises a plurality of flow guide plates.

4. The new multi-outlet centrifugal fan as claimed in claim 3, wherein said deflector is pivotable.

5. The new multi-outlet centrifugal fan of claim 1 wherein the outlet shape includes circular and oval.

6. The centrifugal fan with multiple air outlets as claimed in claim 1, wherein the air-cutting member comprises a plurality of air-cutting blades, the air-cutting blades are located between the outer edge of the impeller and the inner wall of the circumferential surface, the side edges of the air-cutting blades are bent inward and have an arc-shaped cross section.

7. The novel centrifugal fan with multiple air outlets as claimed in claim 6, wherein the air cutting pieces are arranged on the inner wall of the shell corresponding to the inner sides of the air outlets, and the air cutting pieces are arranged in an inclined manner.

8. The new multi-outlet centrifugal fan of claim 1 wherein said motor is a hydraulic motor.

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