CN211692884U

CN211692884U - Marine high-efficient axial-flow fan

Info

Publication number: CN211692884U
Application number: CN201922420067.1U
Authority: CN
Inventors: 赵龙武; 王新; 阎航海
Original assignee: Weihai Creditfan Ventilator Co Ltd
Current assignee: Weihai Creditfan Ventilator Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-16
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a marine high-efficiency axial-flow fan, which comprises a casing, an air duct formed inside the casing and a motor installation cylinder installed inside the casing, wherein one end of the motor installation cylinder is connected with a fluid director, the other end of the motor installation cylinder is provided with a motor, the motor is provided with a motor shaft, the motor shaft is connected with an impeller through a shaft sleeve and an impeller fixing bolt, the shaft sleeve is connected with a hub through a bolt, blades are uniformly distributed on the periphery of the hub, and a plurality of rear guide blades are connected between the motor installation cylinder and the air; the utility model designs a fan casing wind cylinder internal welding back guide vane, which not only plays the role of supporting the motor, but also plays the role of improving the fan efficiency; the impeller is designed into a spherical hub, the blades are in a wing shape, the efficiency of the fan is improved, and the impeller is made of cast aluminum alloy, so that the impeller is light in weight and low in noise; the air duct is internally provided with the fluid director, so that the air flow is more stable, and the turbulent flow is reduced, thereby further improving the overall efficiency; the whole structure has high flow, large pressure, firmness, reliability, convenient manufacture and simple process.

Description

Marine high-efficient axial-flow fan

Technical Field

The utility model relates to a fan technical field, concretely relates to marine high-efficient axial-flow fan.

Background

With the development of the ship industry, the increasing size of ships becomes a mainstream trend, but the increase of the overall energy consumption of the ships is faced with, and the improvement of the efficiency of main equipment becomes an urgent need. The axial flow fan for the ship is used as a main auxiliary machine for mechanical ventilation of each cabin of the ship and is widely applied to various ship types. The efficiency of the axial flow fan for the ship is improved, and the axial flow fan has very important significance for the overall emission reduction of the ship. Therefore, a high-efficiency axial flow fan needs to be developed, and the overall efficiency of the fan is greatly improved on the premise of meeting the use working condition.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a for solving the problem among the prior art and proposing, its aim at provides a marine high-efficient axial-flow fan, has solved the problem that the low energy consumption of ventilation blower is high, and the spherical wheel hub of impeller design and blade adopt the wing section, improve the efficiency of fan.

The utility model provides a marine high-efficient axial-flow fan, includes the dryer of the inside formation of casing, casing and installs at the inside motor installation section of thick bamboo of casing, motor installation section of thick bamboo one end is connected with the divertor, the motor is installed to the other end in the motor installation section of thick bamboo, the motor is equipped with the motor shaft, the motor shaft passes through axle sleeve and impeller fixing bolt and connects the impeller, the axle sleeve has wheel hub through bolted connection, wheel hub periphery evenly distributed has the blade, be connected with a plurality of back stator between motor installation section of thick bamboo and the dryer.

Preferably, the motor installation cylinder is provided with an installation plate connected with the inner wall of the shell, and the motor is fixed on the installation plate through a motor fixing bolt.

Preferably, the motor is mounted in a B5 type manner.

Preferably, the hub is spherical, and the blades are airfoil-shaped.

Preferably, the fluid director adopts a conical structure and is formed by pressing a steel plate, and the fluid director is fixedly connected with the motor mounting barrel through a fluid director fixing bolt.

Preferably, the impeller is made of cast aluminum alloy.

Preferably, the casing is formed by welding steel plates of Q235B, and flanges are welded at two ends of the casing.

Preferably, the surface of the air duct is sprayed with anticorrosive paint.

Preferably, the casing is externally provided with a lifting lug.

The utility model discloses an axial-flow fan is satisfying under the prerequisite of using the operating mode, and whole fan efficiency reaches more than 85%, adopts new fan structure: a rear guide vane is welded in the air cylinder of the fan shell, so that the function of supporting the motor is realized, and the function of improving the efficiency of the fan is also realized; the impeller is designed into a spherical hub, the blades are in a wing shape, the efficiency of the fan is improved, and the impeller is made of cast aluminum alloy, so that the impeller is light in weight and low in noise; the air duct is internally provided with the fluid director, so that the air flow is more stable, and the turbulent flow is reduced, thereby further improving the overall efficiency; the whole structure has high flow, large pressure, firmness, reliability, convenient manufacture and simple process, and meets the high efficiency requirement of customers.

Drawings

Fig. 1 is a schematic structural view of a high-efficiency axial-flow ventilator for a ship.

Fig. 2 is a schematic structural view of the impeller.

FIG. 3 is a schematic structural view of the rear guide vane.

Fig. 4 is a schematic structural view of the flow deflector.

Description of the reference numerals

1-a machine shell; 2-a fluid director; 3-an impeller; 4-a motor; 5-an air duct; 6-lifting lugs; 7-a motor mounting cylinder; 8-rear guide vanes; 9-impeller fixing bolts; 10-motor fixing bolt; 11-deflector fixing bolts; 301-a hub; 302-blade.

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.

The utility model discloses an embodiment, refer to fig. 1-4, a marine high-efficient axial-flow fan, including casing 1, the dryer 5 of the inside formation of casing 1 and install at the inside motor installation section of thick bamboo 7 of

casing

1, 7 one ends of motor installation section of thick bamboo are connected with divertor 2, and motor 4 is installed to the other end in the motor installation section of thick bamboo 7, and motor 4 is equipped with the motor shaft, and the motor shaft passes through axle sleeve and impeller fixing bolt 9 and connects impeller 3, and the axle sleeve has wheel hub 301 through bolted connection, and wheel hub 301 periphery evenly distributed has blade 302, is connected with a plurality of back stator 8 between the motor installation section of thick bamboo 7.

The motor mounting cylinder 7 is provided with a mounting plate connected with the inner wall of the shell 1, and the motor 4 is fixed on the mounting plate through a motor fixing bolt 10; the motor 4 adopts a B5 type installation mode.

The fluid director 2 adopts a conical structure and is formed by pressing a steel plate, and the fluid director 2 is fixedly connected with the motor mounting cylinder 7 through a fluid director fixing bolt 11. The casing 1 is externally provided with a lifting lug 6.

The air duct 5 of the fan shell 1 is provided with a rear guide vane 8 which not only plays a role of supporting the motor 4, but also plays a role of improving the efficiency of the fan; the fan impeller 3 adopts a spherical hub 301, the blades 302 adopt airfoil shapes, the efficiency of the fan can be greatly improved, and the impeller 3 is made of cast aluminum alloy, so that the weight is light and the noise is low; the air duct 5 is internally provided with the fluid director 2, so that the air flow is more stable, and the turbulent flow is reduced, thereby further improving the overall efficiency. For the convenience of customer's hoist and mount, the welding has the lug on the dryer.

As shown in fig. 1, the fan is of an axial flow direct connection type, and mainly comprises a casing 1, an impeller 3, a motor 4 and a fluid director 2. The impeller 3 is directly connected and fixed on a motor shaft through a shaft sleeve and a motor fixing bolt 10, the motor 4 is in a B5 type installation mode and fixed in the fan shell 1 through the motor fixing bolt 10, the fluid director 2 is pressed by a steel plate, and is connected in the air duct 5 through a fluid director fixing bolt 11 for convenient disassembly and maintenance. The casing 1 is welded by Q235B steel plates, and flanges are welded at two ends of the casing for connecting pipelines of customers. The motor 4 adopts B5 type mounting means, and a plurality of back stator 8 of welding between motor installation section of thick bamboo 7 and the dryer 5 matches corresponding blade 302 angle through optimal design, when strengthening the intensity of casing 1 itself, realizes the air current guide effect, improves fan efficiency. By means of the flow director 2, the turbulence of the air flow is further reduced. The air duct 5 is subjected to surface treatment and sprayed with anticorrosive paint, and is suitable for marine environment application.

As shown in fig. 2, the impeller 3 adopts a spherical hub 301 and airfoil type blades 302, so that the impeller 3 works uniformly by improving the air intake state, the stability of air flow is improved, and the efficiency is improved; the mounting shaft sleeve is made of cast iron and is connected with the impeller hub 301 through a bolt.

As shown in figure 3, the air flow guiding is realized by reasonably designing the inlet angle of the rear guide vane 8, the pressure loss is reduced, and the fan efficiency is improved.

As shown in fig. 4, the fluid director 2 adopts a conical structure and integrally coats the motor 4, so that the turbulent flow of the shape of the motor 4 to the air flow is reduced, and the pressure loss can be further reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a marine high-efficient axial-flow fan, its characterized in that, includes wind cone (5) of casing (1), the inside formation of casing (1) and installs at the inside motor installation section of thick bamboo (7) of casing (1), motor installation section of thick bamboo (7) one end is connected with divertor (2), motor (4) are installed to the other end in the motor installation section of thick bamboo (7), motor (4) are equipped with the motor shaft, the motor shaft passes through the axle sleeve and impeller fixing bolt (9) connects impeller (3), the axle sleeve has wheel hub (301) through bolted connection, wheel hub (301) periphery evenly distributed has blade (302), be connected with a plurality of back stator (8) between motor installation section of thick bamboo (7) and wind cone (5).

2. A marine high-efficiency axial-flow fan according to claim 1, wherein the motor mounting cylinder (7) is provided with a mounting plate connected with the inner wall of the housing (1), and the motor (4) is fixed on the mounting plate through a motor fixing bolt (10).

3. A marine high efficiency axial flow ventilator according to claim 2 characterised in that the motor (4) is of B5 type mounting.

4. A marine high efficiency axial flow ventilator as claimed in claim 1 characterised in that the hub (301) is spherical and the blades (302) are of the aerofoil type.

5. The high-efficiency axial flow ventilator for the ship according to claim 1, wherein the fluid director (2) is of a conical structure and is formed by pressing a steel plate, and the fluid director (2) is fixedly connected with the motor mounting barrel (7) through a fluid director fixing bolt (11).

6. A high-efficiency axial-flow ventilator for ships according to claim 1, characterized in that the impeller (3) is made of cast aluminum alloy.

7. The high-efficiency axial flow fan for the ship is characterized in that the casing (1) is formed by welding steel plates of Q235B, and flanges are welded at two ends of the casing (1).

8. A marine high-efficiency axial-flow ventilator according to claim 1, characterized in that the surface of the wind tube (5) is sprayed with an anticorrosive paint.

9. A marine high efficiency axial flow ventilator according to claim 1 characterised in that the casing (1) is externally provided with lifting lugs (6).