CN215860836U

CN215860836U - High-efficiency energy-saving centrifugal blower

Info

Publication number: CN215860836U
Application number: CN202122056204.5U
Authority: CN
Inventors: 卢志辉
Original assignee: Foshan Zhongtong Blower Co ltd
Current assignee: Foshan Zhongtong Blower Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-02-18
Anticipated expiration: 2031-08-30

Abstract

The utility model relates to a high-efficiency energy-saving centrifugal blower, which is characterized in that: comprises a shell, a combined base, a motor, a bearing box and an impeller; the shell is provided with an air inlet and an air outlet; the combined base is arranged at the bottom of the rear end of the shell; the motor and the bearing box are arranged at the top of the combined base; the motor is in transmission connection with the bearing box through a coupler; the impeller is arranged in the shell and is in transmission connection with an output shaft of the bearing box; the impeller is a three-dimensional flow impeller; the impeller comprises a front disc, a rear disc, nine groups of long blades and nine groups of short blades; nine groups of long blades and nine groups of short blades are alternately welded between the front disc and the rear disc in a crossed mode. The three-dimensional flow impeller adopting the long and short forward bent blades has the characteristics of safe and reliable transmission, high pressure, large flow, low noise, flat performance curve, wide high-efficiency area and the like; the blade is designed by adopting a ternary flow principle as a single plate, and is wear-resistant, free of dust adhesion, energy-saving and durable.

Description

High-efficiency energy-saving centrifugal blower

Technical Field

The utility model relates to a high-efficiency energy-saving centrifugal blower, and belongs to the technical field of centrifugal blowers.

Background

The centrifugal fan is an element which converts mechanical energy into pressure energy and kinetic energy of gas by utilizing the rotation of a fan impeller, the gas enters the air inlet axially through an air inlet, the gas obtains the pressure energy and the kinetic energy through the rotation action of the impeller, the gas is output along a spiral shell, and then the gas is sent out from an air outlet of the shell. Centrifugal fans are widely used in ventilation, dust extraction and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and boilers. At present, the centrifugal fan for conveying high dust in China mainly has the defects; 1. the service life of the fan blade is short. The existing fan impeller has short service life, and the main reason is that the centrifugal fan conveys gas with high particle dust, and the dust gas contains particles with different sizes, so that the high-speed flight has larger kinetic energy, and the collision and the friction with the impeller cause abrasion. 2. The impeller is easy to block and collect ash in work. At present, the wing type double blades of the fan impeller are more, and the blades of the impeller are easy to collect ash and block in the process of conveying materials, so that the dynamic balance is damaged, and the integral vibration of the fan is caused. 3. Low efficiency, high noise, unstable fan performance and energy waste. At present, the highest efficiency of the fan is about 70 percent, the energy consumption is high, the high-efficiency area is narrow, and the pressure of the large-flow area is not high, so that the pressure is often insufficient in the operation process of the fan, and the system operation is influenced.

Therefore, the utility model aims to provide a centrifugal blower which is efficient, energy-saving, low in noise and free of dust.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical defects, the utility model provides the high-efficiency energy-saving centrifugal blower, which adopts a three-dimensional flow impeller with long and short alternate forward bent blades to replace the traditional blower impeller and has the characteristics of safe and reliable transmission, high pressure, large flow, low noise, flat performance curve, wide high-efficiency area and the like; the blade is designed by adopting a ternary flow principle as a single plate, and is wear-resistant, free of dust adhesion, energy-saving and durable.

In order to solve the problems of the prior art, the technical scheme adopted by the utility model is as follows:

the utility model provides a high-efficient energy-saving centrifugal blower which characterized in that: comprises a shell, a combined base, a motor, a bearing box and an impeller; the shell is provided with an air inlet and an air outlet; the combined base is arranged at the bottom of the rear end of the shell; the motor and the bearing box are arranged at the top of the combined base; the motor is in transmission connection with the bearing box through a coupler; the impeller is arranged in the shell and is in transmission connection with an output shaft of the bearing box; the impeller is a three-dimensional flow impeller; the impeller comprises a front disc, a rear disc, nine groups of long blades and nine groups of short blades; the nine groups of long blades and the nine groups of short blades are alternately welded between the front disk and the rear disk in a crossed mode.

Furthermore, the casing is of a volute structure formed by steel plates.

Further, the front disc is a conical front disc; the back plate is a flat plate-shaped back plate.

Furthermore, the nine groups of long blades and the nine groups of short blades are both designed into a single-plate structure based on a ternary flow principle.

The utility model has the beneficial effects that: the three-dimensional flow impeller with long and short forward bent blades is adopted to replace the traditional fan impeller, and the three-dimensional flow impeller has the characteristics of safe and reliable transmission, high pressure, large flow, low noise, flat performance curve, wide high-efficiency area and the like; the blade is designed by adopting a ternary flow principle as a single plate, and is wear-resistant, free of dust adhesion, energy-saving and durable.

Drawings

Fig. 1 is a schematic structural view of the present invention.

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

Fig. 3 is a schematic structural view of the impeller of the present invention.

Figure 4 is a partial cross-sectional view of the impeller of the present invention.

Wherein: the air conditioner comprises a machine shell 1, a combined base 2, a motor 3, a bearing box 4, an impeller 5, an air inlet 6, an air outlet 7, a coupler 8, a front disc 9, a rear disc 10, long blades 11 and short blades 12.

Detailed Description

In order to make the technical solutions of the present invention more understandable to those skilled in the art, the present invention is further analyzed with reference to fig. 1 to 4.

As shown in fig. 1-4, an energy-efficient centrifugal blower is characterized in that: comprises a shell 1, a combined base 2, a motor 3, a bearing box 4 and an impeller 5; the shell 1 is provided with an air inlet 6 and an air outlet 7; the combined base 2 is arranged at the bottom of the rear end of the shell 1; the motor 3 and the bearing box 4 are arranged at the top of the combined base 2; the motor 3 is in transmission connection with the bearing box 4 through a coupler 8; the impeller 5 is arranged in the shell 1 and is in transmission connection with an output shaft of the bearing box 4; the impeller 5 is a three-dimensional flow impeller; the impeller 5 comprises a front disk 9, a rear disk 10, nine groups of long blades 11 and nine groups of short blades 12; the nine groups of long blades 11 and the nine groups of short blades 12 are welded between the front disk 9 and the rear disk 10 in a staggered manner.

In this embodiment, preferably, the casing 1 is made of a steel plate and is configured as a volute structure.

In this embodiment, preferably, the front disk 9 is provided as a tapered front disk; the rear tray 10 is provided as a flat plate-shaped rear tray.

In this embodiment, preferably, the nine groups of long blades 11 and the nine groups of short blades 12 are both designed as a single plate structure based on the ternary flow principle.

The three-dimensional flow impeller with long and short forward bent blades replaces the traditional fan impeller, and has the characteristics of safe and reliable transmission, high pressure, large flow, low noise, flat performance curve, wide high-efficiency area and the like; the blade is designed by adopting a ternary flow principle as a single plate, and is wear-resistant, free of dust adhesion, energy-saving and durable.

The technical solutions provided by the present application are introduced in detail, and the principles and embodiments of the present application are explained herein by applying embodiments, and the descriptions of the embodiments are only used to help understand the method and the core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. The utility model provides a high-efficient energy-saving centrifugal blower which characterized in that: comprises a shell, a combined base, a motor, a bearing box and an impeller; the shell is provided with an air inlet and an air outlet; the combined base is arranged at the bottom of the rear end of the shell; the motor and the bearing box are arranged at the top of the combined base; the motor is in transmission connection with the bearing box through a coupler; the impeller is arranged in the shell and is in transmission connection with an output shaft of the bearing box; the impeller is a three-dimensional flow impeller; the impeller comprises a front disc, a rear disc, nine groups of long blades and nine groups of short blades; the nine groups of long blades and the nine groups of short blades are alternately welded between the front disk and the rear disk in a crossed mode.

2. An energy efficient centrifugal blower as set forth in claim 1 wherein: the casing adopts the steel sheet to set up to the spiral case structure.

3. An energy efficient centrifugal blower as set forth in claim 1 wherein: the front disc is a conical front disc; the back plate is a flat plate-shaped back plate.

4. An energy efficient centrifugal blower as set forth in claim 1 wherein: the nine groups of long blades and the nine groups of short blades are all designed into a single plate structure based on a ternary flow principle.