CN210769374U

CN210769374U - Centrifugal fan

Info

Publication number: CN210769374U
Application number: CN201921601328.3U
Authority: CN
Inventors: 刘立新
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-06-16
Anticipated expiration: 2029-09-25

Abstract

The utility model provides a centrifugal fan, includes preceding baffle, backplate, impeller and motor, its main points are preceding baffle and backplate be circular baffle respectively, between baffle and the backplate before the impeller is provided with, preceding baffle and backplate pass through a plurality of screw rod fixed connection, are provided with the air intake in the middle of the preceding baffle. An output shaft jack is designed in the middle of the back baffle, the motor is arranged at the rear end of the back baffle, an output shaft of the motor penetrates through the output shaft jack and is fixedly connected with the impeller, and the motor is fixedly connected with the back baffle through screws. The utility model discloses simple structure, noise abatement, dust collection effect is strong, can make dust operation occasion cleaner, more environmental protection.

Description

Centrifugal fan

Technical Field

The utility model relates to a fluid machinery technical field, in particular to centrifugal fan with dust removal function.

Background

The centrifugal fan generally functions to power the air circulation of the components to which it is connected. When the centrifugal fan normally operates, the impeller is driven by the motor to rotate in the volute, and air enters from the center of the impeller through the air inlet chamber. The centrifugal force of the rotation of the blades enables the gas to obtain energy, the pressure and the speed of the gas are rapidly improved, and the gas is thrown to the shell along the blade channel under the action of the centrifugal force and is discharged from the gas outlet of the volute. The centrifugal fan depends on the input mechanical energy to realize the improvement of gas pressure and the discharge of gas, so the pneumatic efficiency of the centrifugal fan is the key for saving energy consumption.

The existing centrifugal fan can suck external dust when sucking external air, when the fan works, the periphery of a volute of the fan can block wind power, and the wind flow transmitted by blades is forced to change direction due to the volute and then is discharged from an air outlet, so that the effect of reducing the bottom is achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a simple structure, reasonable in design, the effectual centrifugal fan of dust removal.

The technical scheme is as follows:

the utility model provides a centrifugal fan, includes preceding baffle, backplate, impeller and motor, its main points are preceding baffle and backplate be circular baffle respectively, between baffle and the backplate before the impeller is provided with, preceding baffle and backplate pass through a plurality of screw rod fixed connection, are provided with the air intake in the middle of the preceding baffle. An output shaft jack is designed in the middle of the back baffle, the motor is arranged at the rear end of the back baffle, an output shaft of the motor penetrates through the output shaft jack and is fixedly connected with the impeller, and the motor is fixedly connected with the back baffle through screws.

The utility model discloses an impeller is the impeller of 30 blades, according to operating mode needs, sets up the blade into radial or preceding, hypsokinesis state, and the distortion angle of timing blade reaches the best and admits air and exhaust effect.

The utility model discloses when using, in filtering the room at the outside independent dust of dust workshop factory building with centrifugal fan setting, the air intake in the middle of the preceding baffle passes through the dust absorption pipeline hookup in pipeline and dust workshop, when the impeller is high-speed (the power supply of selecting to exceed two-stage motor speed) when rotatory, is different from that traditional centrifugal fan volute hinders the shelves and smoothly discharges to wind, and the air intake produces great suction and negative pressure, makes the dust in the dust workshop inhale the dust fast and filter within a definite time, the utility model is suitable for an if multiple occasions such as carpenter's workshop or other dusts are great.

The utility model discloses centrifugal fan produces great suction through the structure of the volute of improvement fan during the impeller is rotatory, makes in the dust air current that the air intake in the middle of the baffle inhales the impeller in the past discharge the dust workshop rapidly to centrifugal fan's efficiency has been improved. The utility model discloses simple structure, noise abatement, dust collection effect is strong, can make dust operation occasion cleaner, more environmental protection.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a side view of the present invention.

Detailed Description

The utility model provides a centrifugal fan, includes preceding baffle 1, backplate 2, impeller 3 and motor 4, its main points are preceding baffle 1 and backplate 2 be circular baffle respectively, impeller 3 is the impeller of 30 blades, between impeller 3 is provided with preceding baffle 1 and backplate 2, preceding baffle 1 and backplate 2 are through a plurality of screw rod fixed connection, are provided with air intake 5 in the middle of preceding baffle 1. An output shaft jack 6 is designed in the middle of the back baffle plate 2, the motor 4 is arranged at the rear end of the back baffle plate 2, an output shaft 7 of the motor 4 penetrates through the output shaft jack 6 to be fixedly connected with the impeller 3, and the motor 4 is fixedly connected with the back baffle plate 2 through screws.

Claims

1. The utility model provides a centrifugal fan, includes preceding baffle (1), backplate (2), impeller (3) and motor (4), characterized by preceding baffle (1) and backplate (2) be circular baffle respectively, impeller (3) are provided with between preceding baffle (1) and backplate (2), preceding baffle (1) and backplate (2) are through a plurality of screw rod fixed connection, be provided with air intake (5) in the middle of preceding baffle (1), it has output shaft jack (6) to design in the middle of backplate (2), motor (4) set up in backplate (2) rear end, output shaft (7) of motor (4) pass output shaft jack (6) and impeller (3) fixed connection, motor (4) pass through screw fixed connection with backplate (2).