CN219549158U

CN219549158U - Centrifugal ventilator

Info

Publication number: CN219549158U
Application number: CN202320610725.7U
Authority: CN
Inventors: 林刚; 应有春; 李东明
Original assignee: Zhejiang Xingyi Ventilator Electrical Appliance Co ltd
Current assignee: Zhejiang Xingyi Ventilator Electrical Appliance Co ltd
Priority date: 2023-03-23
Filing date: 2023-03-23
Publication date: 2023-08-18
Anticipated expiration: 2033-03-23

Abstract

The utility model provides a centrifugal ventilator, and belongs to the field of fans. It has solved the great problem of noise when current centrifugal fan operation work. This centrifugal fan, including the ventilation blower main part that has air intake and apopore with fall the box of making an uproar, fall on the box of making an uproar and offered the apopore that is linked together with ventilation blower main part air outlet, fall on the box of making an uproar and offered the apopore, be provided with vibration damper on being located the bottom of the box of making an uproar, be located the air outlet department of the box of making an uproar and be provided with the protection grid, be located the apopore department of the box of making an uproar and be provided with the dust guard, a plurality of ventilation hole has been offered on the dust guard, inlay on the box of making an uproar inner peripheral wall of making an uproar and install the rock wool layer that is used for reducing ventilation blower main part operation noise, and be located the laminating fastening adhesion on the ventilator main part inner wall and be convenient for reduce the inside operation noise of ventilation blower main part. The utility model has the advantages of low noise, high strength and high vibration reduction effect.

Description

Centrifugal ventilator

Technical Field

The utility model belongs to the field of fans, and relates to a ventilator, in particular to a centrifugal ventilator.

Background

The centrifugal ventilator is mainly composed of impeller, casing, motor, shaft coupling and shaft, the impeller is a main working component for producing wind pressure and transferring energy, the casing is mainly used for introducing gas and exhausting gas, at the same time, partial kinetic energy of gas is changed into pressure energy, the shaft coupling is used for connecting motor and fan, transferring moment, the shaft is used for mounting and fixing impeller, and the centrifugal ventilator has the characteristics of simple structure, low manufacturing cost, large gas flow rate and high pressure realization, and can be widely used in various fields of metallurgy, building materials, heat treatment, food and the like.

In operation work, the traditional centrifugal ventilator can generate mechanical noise and air noise by the rapid rotation work of the impeller and the rapid circulation of air, so that the working environment of operators is seriously influenced, and the air inlet of the centrifugal ventilator is generally not provided with a dustproof separator effect, so that dust and particles enter the centrifugal ventilator to cause the damage of the impeller and parts in the interior.

Disclosure of Invention

The present utility model has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present utility model is to provide a centrifugal fan.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a centrifugal fan, its characterized in that, including the ventilation blower main part that has air intake and apopore and supply the installation of ventilation blower main part and have the noise reduction box that falls, the noise reduction box on seted up the apopore that is linked together with ventilation blower main part air outlet, the noise reduction box on set up with fall the inside intercommunication of box and supply the air inlet that the circulation of air got into, be located the box of falling on the bottom be provided with the damping device who supplies the installation of ventilation blower main part and have the damping effect, be located the air outlet department of noise reduction box be provided with and be used for preventing debris entering ventilation blower main part in and have the protection grid that reduces the circulation of air noise, be located the apopore department of noise reduction box be provided with the dust keeper that is used for preventing debris dust entering and damping cushioning effect, the dust keeper on set up a plurality of and be linked together and supply the ventilation hole of ventilation, noise reduction box in the week wall on inlay install the rock wool layer that is used for reducing ventilation blower main part operation noise, and be located the body inner wall on the body on the fastening adhesion be convenient for reduce ventilation blower main part inside operation noise's protection rubber layer laminating ventilation blower.

In the centrifugal ventilator, the vibration damping device is composed of a base, a supporting plate, a connecting rod and a vibration damping layer, wherein the base is fixedly installed on the ventilator body and integrally formed with the bottom of the noise reduction box body, the supporting plate is located in the noise reduction box body and is tightly attached to the shell of the ventilator body, the connecting rod is connected with the supporting plate and is connected with the bottom of the noise reduction box body, and the vibration damping layer is located between the supporting plate and the ventilator body and used for buffering and damping.

In the centrifugal ventilator, a rubber gasket which is convenient for noise reduction is arranged on the end face of the air inlet of the noise reduction box body, and the rubber gasket is fixedly connected with the peripheral wall of the noise reduction box body through a fastening bolt.

In the centrifugal ventilator, the cross section of the dustproof piece is in a circular arc structure, a limiting part which is convenient to abut against the side wall of the noise reduction box body and is in limiting connection is arranged on the outer edge of the dustproof piece, and the limiting part is in fastening connection with the inner peripheral wall of the noise reduction box body through a fastening bolt.

In the centrifugal ventilator, the plurality of ventilation holes are distributed at intervals along the end face of the dust-proof piece in the circumferential direction.

Compared with the prior art, the centrifugal ventilator has the following advantages:

1. the centrifugal ventilator is provided with the noise reduction box body, and the rock wool layer is arranged on the inner peripheral wall of the noise reduction box body, so that noise in the operation process of the ventilator main body can be effectively reduced, meanwhile, the dustproof protection effect is achieved, and the service life and the service strength of the ventilator main body are greatly improved;

2. the vibration damper is arranged in the noise reduction box body, and through the structural design of the vibration damper, the vibration of the main body of the ventilator during movement is effectively reduced, and the noise reduction effect is also achieved;

3. the air inlet and the air outlet of the noise reduction box body are respectively provided with a dust-proof piece and a protective grille, sundries can be prevented from entering the noise reduction box body to damage the main body of the ventilator through the structural design, and meanwhile, the noise reduction effect is achieved, and the low noise effect of the main body of the ventilator is further improved.

Drawings

Fig. 1 is a schematic perspective view of the centrifugal fan.

Fig. 2 is a schematic view of the centrifugal fan in a semi-sectional structure.

In the figure, 1, a ventilator main body; 2. a noise reduction box body; 3. an air outlet hole; 4. an air inlet hole; 5. a protective grille; 6. a dust-proof member; 7. a vent hole; 8. a rock wool layer; 9. a rubber sound insulation layer; 10. a base; 11. a support plate; 12. a connecting rod; 13. a vibration damping layer; 14. a rubber gasket; 15. and a limiting part.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 and 2, this centrifugal fan, including the fan body 1 that has air intake and apopore 3 and supply fan body 1 installation and have noise reduction box 2 that reduces the noise effect, set up the apopore 3 that is linked together with fan body 1 air outlet on the box of making an uproar 2, set up on the box of making an uproar 2 with make an uproar 2 inside intercommunication and supply the air inlet 4 that the circulation of air got into, be provided with the damping device who supplies fan body 1 installation and have the damping effect on the bottom in the box of making an uproar 2 of making an uproar, be located the air outlet department of box of making an uproar 2 and be provided with the protection grid 5 that is arranged in preventing debris to get into fan body 1 and has the noise of reducing the circulation of air, be provided with the dust guard 6 that is arranged in preventing debris dust to get into and the damping cushioning effect in the apopore 4 department of box of making an uproar 2, set up a plurality of on the dust guard 6 and make an uproar 2 inside be linked together and supply the ventilation hole 7, install the rock wool layer 8 that is arranged on the box of making an uproar 2 inner peripheral wall of making an uproar, be used for reducing fan body 1 running noise on the inner peripheral wall of the box of making an uproar 2, have rock wool layer 8 on the inner peripheral wall of the box of making an uproar 2, can effectively reduce fan body 1 and have the noise 1, and have improved the effect on the inner wall of the fan 1 and have been used for the fan 1, and have improved the noise 1, and have been used for the noise 1, and have been compared with the fan 1, and the fan 1 has greatly improved the noise level has greatly improved performance in the performance and the noise 1 and has been compared on the fan 1.

Further, in order to reduce vibration of the ventilator body 1 during operation, the vibration reduction device is composed of a base 10 which is fixedly installed on the ventilator body 1 and integrally formed with the inner bottom of the noise reduction box body 2, a supporting plate 11 which is positioned in the noise reduction box body 2 and tightly attached to the outer shell of the ventilator body 1, a connecting rod 12 which is connected with the supporting plate 11 and connected with the bottom of the noise reduction box body 2, and a vibration reduction layer 13 which is positioned between the supporting plate 11 and the ventilator body 1 and used for buffering and reducing vibration.

Further, in order to reduce the noise of the ventilation at the air inlet 4, a rubber gasket 14 is disposed on the end face of the air inlet 4 of the noise reduction box 2, which is convenient for reducing the noise, and the rubber gasket 14 is fixedly connected with the peripheral wall of the noise reduction box 2 through fastening bolts.

Further, in order to improve the protection effect, the cross section of the dust-proof piece 6 is arranged in a circular arc structure, a limiting part 15 which is convenient to lean against the side wall of the noise reduction box 2 and is in limiting connection is arranged on the outer edge part of the dust-proof piece 6, the limiting part 15 is fixedly connected with the inner peripheral wall of the noise reduction box 2 through a fastening bolt, and a plurality of ventilation holes 7 are distributed at intervals along the end face of the dust-proof piece 6 in the circumferential direction.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although terms such as the ventilator body 1, the noise reduction box 2, the air outlet 3, the air inlet 4, the protective grille 5, the dust-proof member 6, the vent 7, the rock wool layer 8, the rubber sound insulation layer 9, the base 10, the support plate 11, the link 12, the vibration damping layer 13, the rubber gasket 14, the stopper 15, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. The utility model provides a centrifugal fan, its characterized in that, including ventilator body (1) and supply ventilator body (1) installation and have noise reduction box (2) of noise reduction effect with air outlet (3), noise reduction box (2) on set up with ventilator body (1) air outlet be linked together air outlet (3), noise reduction box (2) on set up with noise reduction box (2) inside intercommunication and supply air circulation to get into inlet (4), be located noise reduction box (2) in the bottom on be provided with the damping device who supplies ventilator body (1) installation and have the damping effect, be located the air outlet department of noise reduction box (2) is provided with and is used for preventing debris to get into ventilator body (1) in and has the protection grid (5) of noise reduction, be located noise reduction box (2) air inlet (4) department be provided with be used for preventing debris dust and entering and cushioning effect dustproof piece (6), dustproof piece (6) on set up a plurality of and noise reduction box (2) inside intercommunication and supply air circulation to get into, noise reduction box (8) are used for setting up on the ventilation hole (7) of noise reduction box (2) and are used for setting up on the ventilation layer and are used for the ventilation box (1) to be inlayed in the ventilation layer (8), and the rubber sound insulation layer (9) which is positioned on the inner wall of the ventilator main body (1) and is convenient for reducing the internal operation noise of the ventilator main body (1) is adhered and fastened.

2. A centrifugal fan according to claim 1, wherein the vibration damping device comprises a base (10) which is fixedly arranged on the fan main body (1) and is integrally formed with the inner bottom of the noise reduction box body (2), a supporting plate (11) which is positioned in the noise reduction box body (2) and is tightly attached to the outer shell of the fan main body (1), a connecting rod (12) which is connected with the supporting plate (11) and is connected with the bottom of the noise reduction box body (2), and a vibration damping layer (13) which is positioned between the supporting plate (11) and the fan main body (1) and is used for buffering and damping.

3. A centrifugal fan according to claim 1, wherein a rubber gasket (14) for reducing noise is arranged on the end face of the air inlet (4) of the noise reduction box (2), and the rubber gasket (14) is fixedly connected with the peripheral wall of the noise reduction box (2) through a fastening bolt.

4. The centrifugal ventilator according to claim 1, wherein the cross section of the dust-proof piece (6) is in a circular arc structure, a limit part (15) which is convenient to abut against the side wall of the noise reduction box body (2) and is in limit connection is arranged on the outer edge part of the dust-proof piece (6), and the limit part (15) is in fastening connection with the inner peripheral wall of the noise reduction box body (2) through a fastening bolt.

5. A centrifugal fan according to claim 1, wherein a plurality of said ventilation holes (7) are circumferentially spaced apart along the end face of the dust-proof member (6).