CN215762346U

CN215762346U - Double-impeller fan

Info

Publication number: CN215762346U
Application number: CN202121552548.9U
Authority: CN
Inventors: 陈彩花; 顾慧雯
Original assignee: Wuxi Shuangchao Fan Co ltd
Current assignee: Wuxi Shuangchao Fan Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2022-02-08
Anticipated expiration: 2031-07-09

Abstract

The utility model provides a double-impeller fan which comprises a shell, wherein one end of the shell is provided with a horn-shaped air guide sleeve, the other end of the air guide sleeve is connected with an air outlet pipe, partition plates which divide the shell and the air guide sleeve into an upper independent cavity and a lower independent cavity are arranged in the shell and the air guide sleeve, a rotating mechanism is respectively arranged in the two cavities, and the rotating mechanism comprises a rotating shaft which is rotatably arranged on the shell and a plurality of fan blades which are uniformly arranged on the peripheral surface of the rotating shaft; the two rotating shafts are connected through a transmission belt, and one rotating shaft is fixedly connected with a driving shaft of a driving motor; the tail end of the air outlet pipe is connected with a filtering device. According to the utility model, through the design of the double impellers, the double impellers are arranged in the independent cavities, the independent cavities form the independent air channels, and the air flow conveyed by the double impellers is converged in the air outlet pipe, so that the flow and the flow velocity of the fan can be effectively improved.

Description

Double-impeller fan

Technical Field

The utility model relates to the technical field of fans, in particular to a double-impeller fan.

Background

The fan is a Chinese habit abbreviation for gas compression and gas conveying machinery, generally, the fan comprises a ventilator, a blower and an air volume generator, and the fan is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; the main purposes of grain drying and sorting, wind tunnel wind source and air cushion boat inflation and propulsion, etc. are to enhance air flow to achieve a certain purpose.

The fan with the single impeller is adopted to convey gas, the air volume is small, the flow rate is low, in order to improve the air volume and the flow rate, the air volume and the flow rate can be only realized by improving the operating power of the driving motor, and the problem that the motor is long in working time and overloaded due to the fact that the fan is kept in a high-power working state for a long time is solved, and the service life of the fan is influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention provides a dual-impeller fan to solve the problems in the background art.

In order to achieve the purpose, the utility model provides a double-impeller fan which comprises a casing, wherein one end of the casing is provided with a horn-shaped air guide sleeve, the other end of the air guide sleeve is connected with an air outlet pipe, partition plates which equally divide the casing and the air guide sleeve into an upper independent cavity and a lower independent cavity are arranged in the casing and the air guide sleeve, a rotating mechanism is respectively arranged in the two cavities, and the rotating mechanism comprises a rotating shaft which is rotatably arranged on the casing and a plurality of fan blades which are uniformly arranged on the peripheral surface of the rotating shaft; the two rotating shafts are connected through a transmission belt, and one rotating shaft is fixedly connected with a driving shaft of a driving motor; the tail end of the air outlet pipe is connected with a filtering device.

As a preferable arrangement of the utility model, the filtering device comprises a cylindrical fixed frame connected with the end face of the air outlet pipe, and a filtering screen is arranged in the fixed frame.

As a preferable arrangement of the present invention, the fixing frame is detachably connected to the end face of the air outlet pipe by a bolt.

The utility model has the beneficial effects that:

according to the utility model, through the design of the double impellers, the double impellers are arranged in the independent cavities, the independent cavities form the independent air channels, and the air flow conveyed by the double impellers is converged in the air outlet pipe, so that the flow and the flow velocity of the fan can be effectively improved.

The fixed frame is detachably connected to the end face of the air outlet pipe through the bolt, so that the fixed frame is convenient to detach and replace, and can be detached for cleaning after being used for a long time, so that the filter screen can be reused.

Drawings

FIG. 1 is a schematic structural view of a dual impeller fan according to an embodiment of the present invention;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments.

Example 1

Referring to fig. 1, as an embodiment of the present invention, the present invention provides a dual-impeller fan, including a casing 1, one end of the casing 1 is provided with a horn-shaped air guide sleeve 2, the other end of the air guide sleeve 2 is connected with an air outlet pipe 3, a partition plate 4 is arranged in the casing 1 and the air guide sleeve 2, the partition plate equally divides the casing 1 and the air guide sleeve 2 into an upper independent cavity and a lower independent cavity, a rotating mechanism is respectively arranged in the two cavities, the rotating mechanism includes a rotating shaft 5 rotatably arranged on the casing 1, and a plurality of fan blades 6 uniformly arranged on the circumferential surface of the rotating shaft 5; the two rotating shafts 5 are connected through a transmission belt 7, and one rotating shaft 5 is fixedly connected with a driving shaft of a driving motor 8; the tail end of the air outlet pipe 3 is connected with a filtering device.

As a preferable configuration of the embodiment of the present invention, further, the filtering device includes a cylindrical fixing frame 9 connected to an end surface of the air outlet pipe 3, and a filtering screen 10 is installed in the fixing frame 9.

As a preferable configuration of the embodiment of the present invention, further, the fixing frame 9 is detachably connected to the end surface of the air outlet pipe 3 by a bolt 11.

In conclusion, the double-impeller design is adopted, the double impellers are arranged in the independent cavities, the independent cavities form the independent air channels, and air flows conveyed by the double impellers are converged in the air outlet pipe, so that the flow and the flow speed of the fan can be effectively improved. The fixed frame is detachably connected to the end face of the air outlet pipe through the bolt, so that the fixed frame is convenient to detach and replace, and can be detached for cleaning after being used for a long time, so that the filter screen can be reused.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the utility model and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Claims

1. A double-impeller fan comprises a shell and is characterized in that one end of the shell is provided with a horn-shaped air guide sleeve, and the other end of the air guide sleeve is connected with an air outlet pipe; the two rotating shafts are connected through a transmission belt, and one rotating shaft is fixedly connected with a driving shaft of a driving motor; the tail end of the air outlet pipe is connected with a filtering device.

2. The dual impeller fan as claimed in claim 1, wherein the filtering means comprises a cylindrical fixing frame connected to an end surface of the outlet duct, and a filtering screen is installed in the fixing frame.

3. The dual impeller fan of claim 2 wherein said fixed frame is removably attached to said outlet duct end face by bolts.