CN211230899U

CN211230899U - High-efficiency circulating automatic multistage centrifugal blower

Info

Publication number: CN211230899U
Application number: CN201922081244.8U
Authority: CN
Inventors: 王行高; 王秀华
Original assignee: Nantong Pratt Turbine Technology Co ltd
Current assignee: Nantong Pratt Turbine Technology Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-08-11
Anticipated expiration: 2029-11-27

Abstract

The utility model belongs to the technical field of centrifugal blower, especially, for an automatic multistage centrifugal blower of high-efficient circulation, which comprises a motor, the output fixedly connected with bearing box of motor, one side of bearing box is equipped with the fan casing, the inside wall of fan casing is rotated through the bearing and is connected with the main shaft, the fixed surface of main shaft is connected with the impeller, one side fixedly connected with seal box of fan casing, the inner wall fixedly connected with of seal box is sealed to fill up, sealed pad is connected with the main shaft laminating, the left side top portion fixedly connected with air intake of fan casing, the top fixedly connected with filter of air intake. The utility model discloses a set up the seal box, the inside of seal box is equipped with sealed the pad, and the cooperation between sealed pad and the main shaft has improved main shaft and bearing leakproofness when carrying out the operation, makes the inside gas of fan casing can not leak gas, has also guaranteed the inside sealed respond well of fan casing simultaneously.

Description

High-efficiency circulating automatic multistage centrifugal blower

Technical Field

The utility model relates to a centrifugal blower technical field specifically is an automatic multistage centrifugal blower of high-efficient circulation.

Background

The centrifugal blower accelerates gas by using an impeller rotating at a high speed according to the principle of converting kinetic energy into potential energy, and then decelerates and changes the flow direction so as to convert the kinetic energy into the potential energy (pressure). In a single stage centrifugal blower, 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. In diffusers, the gas changes flow direction causing a deceleration which converts kinetic energy into pressure energy. The pressure increase occurs primarily in the impeller and secondarily in the diffusion process. In a multistage centrifugal fan, a flow reverser is used to direct the air flow to the next impeller, creating a higher pressure.

However, the following problems exist:

1. the end part of the main shaft of the existing centrifugal blower equipment is easy to generate a gap, air leakage can occur, and the sealing effect is not good;

2. the connection between the motor and the blower of the existing centrifugal blower equipment can not be used for disassembling a single blower, so that the motor and the blower are inconvenient to maintain, and the working efficiency is low.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an automatic multistage centrifugal blower of high-efficient circulation, the tip leakproofness effect of having solved current main shaft is not good and the problem that can not dismantle to single between motor and the air-blower is connected.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an automatic multistage centrifugal blower of high-efficient circulation, includes the motor, the output fixedly connected with bearing box of motor, one side of bearing box is equipped with the fan casing, the inside wall of fan casing rotates through the bearing and is connected with the main shaft, the fixed surface of main shaft is connected with the impeller, one side fixedly connected with seal box of fan casing, the inner wall fixedly connected with of seal box fills up the pad, it is connected with the main shaft laminating to fill up the pad, the left side top portion fixedly connected with air intake of fan casing, the top fixedly connected with filter of air intake, the right side top portion fixedly connected with air outlet of fan casing.

As a preferred technical scheme of the utility model, the first plectane of tip fixedly connected with of main shaft, one side fixedly connected with cardboard of first plectane, the output end fixedly connected with second plectane of motor, the draw-in groove has been seted up to one side of second plectane, the draw-in groove is established with the cardboard card and is connected, first plectane and second plectane set up the inside at the bearing box.

As a preferred technical scheme of the utility model, one side fixedly connected with oil tank of fan casing, one side fixedly connected with of oil tank advances oil pipe, the opposite side fixedly connected with of oil tank goes out oil pipe.

As a preferred technical scheme of the utility model, one side fixedly connected with pressure release bypass muffler of air outlet.

As a preferred technical scheme of the utility model, the bottom fixedly connected with mount of motor, the mount passes through screw fixedly connected with base, fan housing's bottom fixedly connected with support frame, the bottom of support frame and the top fixed connection of base, the top of base and the bottom fixed connection of bearing box, the bottom fixedly connected with shock pad of base.

As an optimal technical scheme of the utility model, the surface of air intake and air outlet all is equipped with the expansion joint, one side of air intake and air outlet all is equipped with the ooff valve.

(III) advantageous effects

Compared with the prior art, the utility model provides an automatic multistage centrifugal blower of high-efficient circulation possesses following beneficial effect:

1. this multistage centrifugal blower of high-efficient circulation through setting up the seal box, the inside of seal box is equipped with sealed the pad, and the cooperation between sealed pad and the main shaft has improved main shaft and bearing leakproofness when carrying out the operation, makes the inside gas of fan casing can not leak gas, has also guaranteed simultaneously that the inside sealed respond well of fan casing.

2. This multistage centrifugal blower of high-efficient circulation, through setting up the mount, the mount passes through the screw fixation with the base, can conveniently be to the dismantlement of motor through rotating the screw, and when the motor was dismantled, the draw-in groove broke away from with the cardboard for motor and fan have fine dismantlement function, and the maintenance of being convenient for, work efficiency is high.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the sealing box of the present invention;

fig. 3 is a schematic view of the local enlargement at a position of the present invention.

In the figure: 1. a motor; 2. a bearing housing; 3. a fan housing; 4. a main shaft; 5. an impeller; 6. a sealing box; 7. a gasket; 8. an air inlet; 9. a filter; 10. an air outlet; 11. a first circular plate; 12. clamping a plate; 13. a second circular plate; 14. a card slot; 15. an oil tank; 16. an oil inlet pipe; 17. an oil outlet pipe; 18. a pressure relief bypass muffler; 19. a fixed mount; 20. a base; 21. a support frame; 22. a shock-absorbing pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides an automatic multistage centrifugal blower of high-efficient circulation, including motor 1, motor 1's output fixedly connected with bearing box 2, one side of bearing box 2 is equipped with fan casing 3, fan casing 3's inside wall is connected with main shaft 4 through the bearing rotation, main shaft 4's fixed surface is connected with impeller 5, one side fixedly connected with seal box 6 of fan casing 3, seal box 6's the sealed pad 7 of inner wall fixedly connected with, sealed pad 7 is connected with the laminating of main shaft 4, fan casing 3's left side top portion fixedly connected with air intake 8, the top fixedly connected with filter 9 of air intake 8, fan casing 3's right side top portion fixedly connected with air outlet 10.

In this embodiment, the filter 9 is for filtering the air in the air inlet 8, preventing dust from entering the inside of the fan housing 3 and affecting the operation of the main shaft 4, and the matching between the sealing gasket 7 and the main shaft 4 improves the sealing performance of the main shaft 4 and the bearing during operation.

Specifically, the end of the main shaft 4 is fixedly connected with a first circular plate 11, one side of the first circular plate 11 is fixedly connected with a clamping plate 12, the output end of the motor 1 is fixedly connected with a second circular plate 13, one side of the second circular plate 13 is provided with a clamping groove 14, the clamping groove 14 is connected with the clamping plate 12 in a clamping mode, and the first circular plate 11 and the second circular plate 13 are arranged inside the bearing box 2.

In this embodiment, the clamping groove 14 and the clamping plate 12 are arranged to facilitate detachment between the motor 1 and the blower, so that the blower and the motor 1 are convenient to maintain.

Specifically, an oil tank 15 is fixedly connected to one side of the fan housing 3, an oil inlet pipe 16 is fixedly connected to one side of the oil tank 15, and an oil outlet pipe 17 is fixedly connected to the other side of the oil tank 15.

In this embodiment, the oil tank 15 is for lubricating the main shaft 4, so that the main shaft 4 is smoother in the operation process, and the working efficiency is high.

Specifically, one side of the air outlet 10 is fixedly connected with a pressure relief bypass silencer 18.

In this embodiment, the pressure relief bypass muffler 18 is provided to shorten the start time of the centrifugal blower and to improve the service life of the centrifugal blower.

Specifically, the bottom fixedly connected with mount 19 of motor 1, mount 19 pass through screw fixedly connected with base 20, the bottom fixedly connected with support frame 21 of fan housing 3, the bottom of support frame 21 and the top fixed connection of base 20, the bottom fixed connection of the top of base 20 and bearing box 2, the bottom fixedly connected with shock pad 22 of base 20.

In this embodiment, the fixing frame 19 is fixedly connected with the base 20 through screws, so as to facilitate the detachment of the motor 1 and facilitate the maintenance, and the support frame 21 and the shock pad 22 are used for ensuring the stable operation of the centrifugal blower.

Specifically, the surfaces of the air inlet 8 and the air outlet 10 are both provided with expansion joints, and one sides of the air inlet 8 and the air outlet 10 are both provided with switch valves.

In this embodiment, the expansion joint is provided to reduce vibration in the air duct, and the on-off valve is provided to facilitate opening and closing of the air inlet 8 and the air outlet 10.

The utility model discloses a theory of operation and use flow: when the centrifugal fan is used, the output end of the motor 1 drives the main shaft 4 to operate by starting the motor 1, the main shaft 4 drives the impeller 5 on the surface to rotate, the filter 9 is used for filtering air in the air inlet 8 and preventing dust from entering the interior of the fan shell 3 to influence the operation of the main shaft 4, the oil tank 15 is used for lubricating the main shaft 4, so that the main shaft 4 is smoother in the operation process, the working efficiency is high, the pressure relief bypass silencer 18 is used for shortening the starting time of the centrifugal fan and prolonging the service life of the centrifugal fan, the fixing frame 19 and the base 20 are fixed through screws, the motor 1 can be conveniently disassembled by rotating the screws, when the motor 1 is disassembled, the clamping groove 14 is separated from the clamping plate 12, so that the motor 1 and the fan have a good disassembling function, the maintenance is convenient, the working efficiency is high, the sealing gasket 7 is arranged inside the sealing box 6, and the sealing gasket 7 is matched, the sealing performance of the main shaft 4 and the bearing during operation is improved, air in the fan shell 3 cannot leak, and meanwhile, the good sealing effect in the fan shell 3 is guaranteed.

Finally, it should be noted that: although the present invention has been described in detail 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 in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an automatic multistage centrifugal blower of high-efficient circulation, includes motor (1), its characterized in that: the utility model discloses a fan, including motor (1), output fixedly connected with bearing box (2), one side of bearing box (2) is equipped with fan casing (3), the inside wall of fan casing (3) is rotated through the bearing and is connected with main shaft (4), the fixed surface of main shaft (4) is connected with impeller (5), one side fixedly connected with seal box (6) of fan casing (3), the sealed pad (7) of inner wall fixedly connected with of seal box (6), sealed pad (7) are connected with main shaft (4) laminating, the left side top portion fixedly connected with air intake (8) of fan casing (3), the top fixedly connected with filter (9) of air intake (8), the right side top portion fixedly connected with air outlet (10) of fan casing (3).

2. An efficient cycle automatic multistage centrifugal blower as claimed in claim 1, wherein: the end part of the main shaft (4) is fixedly connected with a first circular plate (11), one side of the first circular plate (11) is fixedly connected with a clamping plate (12), the output end of the motor (1) is fixedly connected with a second circular plate (13), one side of the second circular plate (13) is provided with a clamping groove (14), the clamping groove (14) is clamped and connected with the clamping plate (12), and the first circular plate (11) and the second circular plate (13) are arranged inside the bearing box (2).

3. An efficient cycle automatic multistage centrifugal blower as claimed in claim 1, wherein: one side of the fan shell (3) is fixedly connected with an oil tank (15), one side of the oil tank (15) is fixedly connected with an oil inlet pipe (16), and the other side of the oil tank (15) is fixedly connected with an oil outlet pipe (17).

4. An efficient cycle automatic multistage centrifugal blower as claimed in claim 1, wherein: one side of the air outlet (10) is fixedly connected with a pressure relief bypass silencer (18).

5. An efficient cycle automatic multistage centrifugal blower as claimed in claim 1, wherein: the utility model discloses a fan, including motor (1), motor, fan casing (3), bottom fixedly connected with mount (19), mount (19) are through screw fixedly connected with base (20), the bottom fixedly connected with support frame (21) of fan casing (3), the bottom of support frame (21) and the top fixed connection of base (20), the top of base (20) and the bottom fixed connection of bearing box (2), the bottom fixedly connected with shock pad (22) of base (20).

6. An efficient cycle automatic multistage centrifugal blower as claimed in claim 1, wherein: the surface of the air inlet (8) and the surface of the air outlet (10) are both provided with expansion joints, and one side of the air inlet (8) and one side of the air outlet (10) are both provided with switch valves.