CN216554517U

CN216554517U - Marine explosion-proof ventilation blower

Info

Publication number: CN216554517U
Application number: CN202122768890.9U
Authority: CN
Inventors: 曲佳兴; 王新; 赵龙武
Original assignee: Weihai Creditfan Ventilator Co Ltd
Current assignee: Weihai Creditfan Ventilator Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-05-17
Anticipated expiration: 2031-11-12

Abstract

The utility model relates to the technical field of marine air interchanger, and particularly discloses a marine explosion-proof ventilator, which comprises: dryer, motor, impeller and explosion-proof section of thick bamboo. Wherein: the motor is fixed in the inner cavity of the air duct, and the impeller is connected to a motor shaft of the motor. The explosion-proof cylinder is of a copper cylindrical structure and is fixed in the air cylinder, and the impeller is located in the explosion-proof cylinder. The port department of an explosion-proof section of thick bamboo is fixed with the support, be fixed with the bearing on the support, the motor shaft axle head of motor rotates to be connected on the bearing. The impeller is arranged in the explosion-proof cylinder, so that the impeller is conveniently isolated from the shell, electric arcs are prevented from being generated between the impeller and the shell, a good explosion-proof effect can be achieved, and the running stability of the fan is improved. In addition, the motor shaft end of the motor is rotatably connected to the port of the explosion-proof cylinder, so that the explosion-proof isolation device can play a role in isolating explosion protection, can prevent the impeller from shaking during rotation, and increases the running stability of the impeller.

Description

Marine explosion-proof ventilation machine

Technical Field

The utility model relates to the technical field of marine air exchange equipment, in particular to a marine explosion-proof ventilator.

Background

The information disclosed in this background of the utility model is only for enhancement of understanding of the general background of the utility model and is not necessarily to 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.

The cargo ship is an important tool for ocean transportation, can transport large-sized containers, automobiles, heavy machinery and other cargos across the ocean, and has the characteristics of large carrying capacity and low operation cost. In order to supply fresh cooling air to a ship cargo compartment, a ventilation fan is generally installed in a pipeline of the ship cargo compartment, and such a fan is required to have high reliability and a characteristic that an impeller needs to be easily disassembled to facilitate maintenance of the fan. In addition, the fan is also required to be convenient to carry and hang wires. However, the above requirements are difficult to satisfy by the existing general ventilator, especially in terms of stability in operation, and therefore, there is a need for further improvement of the existing fan structure.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides the marine explosion-proof ventilator which adopts the guide vane support design, so that the running stability of the ventilator is effectively improved. In order to achieve the purpose, the technical scheme of the utility model is as follows.

An explosion-proof ventilator for a ship, comprising: dryer, motor, impeller and explosion-proof section of thick bamboo. Wherein: the motor is fixed in the inner cavity of the air duct, and the impeller is connected to a motor shaft of the motor. The explosion-proof cylinder is of a copper cylindrical structure and is fixed in the air cylinder, and the impeller is located in the explosion-proof cylinder.

Furthermore, two ports of the air duct are provided with connecting flanges, and a reducer pipe is fixed on the connecting flanges, so that an air inlet and an air outlet are formed.

Furthermore, a support is fixed on the outer wall of the bottom surface of the air duct, so that the ventilator can be fixed at the installation position conveniently.

Further, a motor mounting frame is fixed on the inner wall of the air duct, and the motor is fixed on the motor mounting frame.

Furthermore, a handle is connected to the top surface of the outer wall of the air duct, so that the ventilator can be conveniently carried by hand to move.

Further, the side face of the outer wall of the air duct is connected with a cable hook so as to mount a motor cable.

Further, the impeller comprises a hub, blades and a bushing, wherein: the hub is sleeved on a motor shaft of the motor and fixedly connected with the motor shaft. The blades are fixed on the hub, and the shaft sleeve is connected between the hub and the motor shaft.

Furthermore, a support is fixed at a port of the explosion-proof cylinder, a bearing is fixed on the support, and a shaft end of a motor shaft of the motor is rotatably connected to the bearing.

Furthermore, the radial clearance between the air inlet and the end part of the blade is controlled to be 2.5-4 mm, so that airflow can uniformly pass through the radial clearance, and the reliability is improved on the premise of ensuring the performance of the fan.

Compared with the prior art, the utility model has the following beneficial effects: the impeller is arranged in the explosion-proof cylinder, so that the impeller is conveniently isolated from the shell, electric arcs are prevented from being generated between the impeller and the shell, a good explosion-proof effect can be achieved, and the running stability of the fan is improved. In addition, the motor shaft end of the motor is rotatably connected to the port of the explosion-proof cylinder, so that the explosion-proof isolation device can play a role in isolating explosion protection, can prevent the impeller from shaking during rotation, and increases the running stability of the impeller.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.

Fig. 1 is a schematic structural diagram of an explosion-proof ventilator for a ship in an embodiment.

Fig. 2 is a schematic internal view of the explosion-proof ventilator for a ship in the embodiment.

Fig. 3 is a schematic structural diagram of an impeller in the embodiment.

The labels in the figures represent: the device comprises a wind barrel 1, a motor 2, an impeller 3, a hub 3.1, a blade 3.2, a shaft sleeve 3.3, an explosion-proof barrel 4, a connecting flange 5, a reducer pipe 6, a support 7, a motor mounting rack 8, a handle 9, a cable hook 10 and a support 11.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the utility model and simplify the description, rather than indicate or imply that the device or element referred to needs to have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the utility model. The description will be further described with reference to the drawings and specific examples.

Referring to fig. 1 to 3, there is illustrated an explosion-proof ventilator for a ship, including: dryer 1, motor 2, impeller 3 and explosion-proof section of thick bamboo 4, wherein: the air duct 1 is of a cylindrical structure, two ports are connected with a connecting flange 5 through bolts, and a reducer pipe 6 is fixed on the connecting flange 5 through a bolt assembly, so that an air inlet and an air outlet are formed, and the efficiency of the fan is improved.

The motor mounting frame 8 is fixed on the inner wall of the air duct 1, the motor 2 is fixed on the motor mounting frame 8, the motor is a three-phase asynchronous motor, the rotating speed of the fan is 3470r/min, and the vibration at a rated working point is less than 4.5 mm/s. Impeller 3 adopts aluminum alloy pressure casting, and this impeller 3 includes wheel hub 3.1, blade 3.2 and axle sleeve 3.3, wherein: the hub 3.1 is sleeved on a motor shaft of the motor 2 and fixedly connected with the motor shaft. The blade 3.2 is fixed on the hub 3.1, and the blade is a wing type forward-swept twisted blade, so that the noise is low in efficiency and high in efficiency. The shaft sleeve 3.3 is connected between the hub 3.1 and the motor shaft.

The explosion-proof cylinder 4 is of a copper cylindrical structure and is fixed in the air cylinder 1, and the impeller 3 is positioned in the explosion-proof cylinder 4. Simultaneously, the port department of explosion-proof section of thick bamboo 4 is fixed with support 11, be fixed with the bearing on the support 11, the axle head of the motor shaft of motor 2 is fixed in the inner circle of bearing, through rotating the motor shaft axle head of motor 2 and connecting in the port department of explosion-proof section of thick bamboo 4, both can play the explosion-proof effect of isolation, rock when can preventing again that the impeller from rotating, increased impeller operating stability, and then increased the stability of air current.

In another preferred embodiment, the radial clearance between the air inlet and the blade 3.2 is controlled to be between 2.5mm and 4mm, such as 2.5mm, 3.0mm, 3.5mm, 4.0mm, and the like, so that the airflow can uniformly pass through the blade, and the reliability is increased on the premise of ensuring the performance of the fan.

In other preferred embodiments, a bracket 7 is fixed on the outer wall of the bottom surface of the air duct 1 so as to fix the ventilator at the installation position, and a handle 9 is connected on the top surface of the outer wall of the air duct 1 so as to facilitate the ventilator to be carried by hand for movement. The side surface of the outer wall of the air duct 1 is connected with a cable hook 10 so as to mount a motor cable.

Finally, it should be understood that 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. Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims

1. An explosion-proof ventilator for a ship, comprising: the air duct, the motor, the impeller and the explosion-proof tube; wherein: the motor is fixed in the inner cavity of the air duct, and the impeller is connected to a motor shaft of the motor; the explosion-proof cylinder is of a copper cylindrical structure and is fixed in the air cylinder, and the impeller is located in the explosion-proof cylinder.

2. The marine explosion-proof ventilator of claim 1, wherein two ports of the air duct have connecting flanges, and a reducer pipe is fixed on the connecting flanges, so as to form an air inlet and an air outlet.

3. The marine explosion-proof ventilator of claim 1, wherein a bracket is fixed to an outer wall of a bottom surface of the air duct.

4. The marine explosion-proof ventilator of claim 1, wherein a motor mounting bracket is fixed to an inner wall of the air duct, and the motor is fixed to the motor mounting bracket.

5. The marine explosion-proof ventilator of claim 1 wherein a handle is attached to a top surface of an outer wall of the air duct.

6. The marine explosion-proof ventilator of claim 1, wherein a cable hook is connected to a side surface of an outer wall of the air duct so as to mount a motor cable.

7. A marine explosion-proof ventilator according to claim 2 wherein the impeller comprises a hub, blades and a sleeve, wherein: the hub is sleeved on a motor shaft of the motor and fixedly connected with the motor shaft; the blades are fixed on the hub, and the shaft sleeve is connected between the hub and the motor shaft.

8. The marine explosion-proof ventilator of claim 7, wherein the radial clearance between the air inlet and the impeller is 2.5-4 mm.

9. A marine explosion-proof ventilator according to any one of claims 1 to 6 wherein a bracket is fixed to a port of the explosion-proof cylinder, a bearing is fixed to the bracket, and a shaft end of a motor shaft of the motor rotates on the bearing.