CN215058265U

CN215058265U - High-efficient centrifugal fan of environmental protection low pressure

Info

Publication number: CN215058265U
Application number: CN202121466574.XU
Authority: CN
Inventors: 贾世俊; 梁英
Original assignee: Lunden Fan Technology Tianjin Co ltd
Current assignee: Lunden Fan Technology Tianjin Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-12-07
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses a high-efficient centrifugal fan of environmental protection low pressure, which comprises a housing, the lateral wall fixedly connected with motor of casing, the output of motor is through pivot fixedly connected with connecting axle, the outer fixed surface of connecting axle is connected with the impeller, one side fixedly connected with air inlet ring of motor is kept away from to the casing, the lateral wall of casing just is located air inlet ring one side fixedly connected with air inlet box. The utility model discloses, can make gaseous effect that guides and cushion through air inlet box and air inlet circle, make gaseous casing and discharge casing that can get into more efficiently.

Description

High-efficient centrifugal fan of environmental protection low pressure

Technical Field

The utility model relates to a centrifugal fan field especially relates to a high-efficient centrifugal fan of environmental protection low pressure.

Background

Centrifugal fans are used extensively, not only in civilian use but also in industry, where they are widely used in ventilation and cooling of factories, mines and buildings; the centrifugal fan is a driven fluid machine, accelerates gas by using an impeller, changes the flow direction through a pipeline, and can convert kinetic energy into potential energy.

Most of existing fans cannot enable efficient air inlet and air outlet of the fan, and meanwhile, the fans have large air pressure and may cause certain dangers, so that the fans with low pressure and high efficiency are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an environment-friendly low-pressure high-efficiency centrifugal fan.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a high-efficient centrifugal fan of environmental protection low pressure, includes the casing, the lateral wall fixedly connected with motor of casing, the output of motor is through pivot fixedly connected with connecting axle, the outer fixed surface of connecting axle is connected with the impeller, one side fixedly connected with air inlet ring of motor is kept away from to the casing, the lateral wall of casing just is located air inlet ring one side fixedly connected with air inlet box.

As a further description of the above technical solution:

the shape of the casing is spiral.

As a further description of the above technical solution:

the rotating shaft of the motor is concentric with the shell.

As a further description of the above technical solution:

the surface of the shell positioned at the same side of the motor is provided with a hole, and the motor can rotate in the hole.

As a further description of the above technical solution:

the surface of the air inlet box is provided with an air inlet.

As a further description of the above technical solution:

the impeller consists of a plurality of blades, and the blades are uniformly distributed on the surface of the impeller.

The utility model discloses following beneficial effect has:

1. compared with the prior art, this high-efficient centrifugal fan of environmental protection low pressure, impeller rotate can be inside gaseous suction casing, can make gaseous effect that guides and cushion through inlet box and air inlet circle, make gaseous casing and discharge casing that can get into more efficiently, increased work efficiency.

2. Compared with the prior art, this high-efficient centrifugal fan of environmental protection low pressure can make wind through the spiral helicine casing through a lot of turns to, can reduce the velocity of flow, makes the inside atmospheric pressure of casing reduce, and spiral helicine shape can not influence gas flow.

Drawings

Fig. 1 is a schematic view of the overall structure of an environment-friendly low-pressure high-efficiency centrifugal fan provided by the present invention;

fig. 2 is the utility model provides an environmental protection low pressure high efficiency centrifugal fan's casing schematic diagram.

Illustration of the drawings:

1. a housing; 2. an impeller; 3. an air inlet ring; 4. a motor; 5. an air intake box; 6. an air inlet; 7. and (7) connecting the shafts.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, the utility model provides a pair of high-efficient centrifugal fan of environmental protection low pressure: comprises a casing 1, the shape of the casing 1 is spiral, which can make wind turn for many times, thereby changing the flow direction and the flow speed, the size is small, the rotating speed is low, the air pressure in the casing 1 can be reduced, the efficiency is high, the air flow can generate large pressure loss when turning the right angle bend, the spiral shape can not influence the flow of the air flow, the side wall of the casing 1 is fixedly connected with a motor 4, when the motor 4 is started, the connecting shaft 7 can be driven to rotate, thereby leading an impeller 2 to rotate, the rotating shaft of the motor 4 is concentric with the casing 1, leading the air flow to be more convenient to enter and discharge, the surface of the casing 1 which is positioned at the same side of the motor 4 is provided with a hole, the rotating shaft of the motor 4 can enter the casing 1 to be connected with the connecting shaft 7, the motor 4 can rotate in the hole, the output end of the motor 4 is fixedly connected with the connecting shaft 7 through the rotating shaft, and can be connected with the rotating shaft of the motor 4, the outer wall is connected with the impeller 2, when the motor 4 is started, the connecting shaft 7 can drive the impeller 2 to rotate while rotating, the impeller 2 is fixedly connected to the outer surface of the connecting shaft 7, when the motor 4 is started, the connecting shaft 7 can drive the impeller to rotate, so that air can enter the air inlet ring 3 from the air inlet 6 of the air inlet box 5 and then enter the shell 1, the impeller 2 is composed of a plurality of blades which are uniformly distributed on the surface of the impeller 2, the working efficiency can be increased, the air inlet ring 3 is fixedly connected to one side of the shell 1, which is far away from the motor 4, so that the air can pass through the air inlet ring 3 and then enter the shell 1, the air inlet flow is guided and rectified, the direction of the air flow entering the centrifugal fan is axial, so that the flow direction of the air flow entering the fan is radial, the air inlet box 5 is fixedly connected to the side wall of the shell 1 and is positioned on one side of the air inlet ring 3, can make gaseous effect that has a buffering, can guide gas simultaneously, can set up a filter screen in 6 departments of air inlet of inlet box 5, filtered air carries out environmental protection more, and air inlet 6 has been seted up on the surface of inlet box 5, and gas can get into from air inlet 6.

The working principle is as follows: when the motor 4 is started, the rotating shaft can be rotated, so that the connecting shaft 7 fixedly connected with the rotating shaft can be driven to rotate the connecting shaft 7, the impeller 2 can be rotated due to the connection of the connecting shaft 7 and the impeller 2, suction can be generated, wind can be sucked in from the air inlet 6 at the air inlet box 5, then the wind enters the air inlet ring 3 and enters the casing 1, and the casing 1 is spiral, so that the wind can be turned for many times, and the flow speed and the flow direction can be changed.

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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an environmental protection low pressure high efficiency centrifugal fan, includes casing (1), its characterized in that: the utility model discloses a fan, including casing (1), lateral wall fixedly connected with motor (4) of casing (1), the output of motor (4) is through pivot fixedly connected with connecting axle (7), the outer fixed surface of connecting axle (7) is connected with impeller (2), one side fixedly connected with air inlet ring (3) of motor (4) are kept away from in casing (1), the lateral wall of casing (1) just is located air inlet ring (3) one side fixedly connected with air inlet box (5).

2. The environment-friendly low-pressure high-efficiency centrifugal fan as claimed in claim 1, wherein: an air inlet (6) is formed in the surface of the air inlet box (5).

3. The environment-friendly low-pressure high-efficiency centrifugal fan as claimed in claim 1, wherein: the surface of the shell (1) positioned at the same side of the motor (4) is provided with a hole, and the motor (4) can rotate in the hole.

4. The environment-friendly low-pressure high-efficiency centrifugal fan as claimed in claim 1, wherein: the impeller (2) is composed of a plurality of blades, and the blades are uniformly distributed on the surface of the impeller (2).

5. The environment-friendly low-pressure high-efficiency centrifugal fan as claimed in claim 1, wherein: the rotating shaft of the motor (4) is concentric with the shell (1).

6. The environment-friendly low-pressure high-efficiency centrifugal fan as claimed in claim 1, wherein: the shape of the machine shell (1) is spiral.