CN219993956U - An explosion-proof marine axial flow fan - Google Patents

Abstract

The utility model relates to the technical field of axial flow fans, in particular to an explosion-proof marine axial flow fan. The technical solution includes: a casing, a top cover is installed on the top of the casing, the bottom of the top cover is connected to a connecting plate through a connecting rod, and the connecting plate is located inside the casing, with two sides of the lower surface of the connecting plate. Side plates are installed on both sides, and hollow cylinders are installed between two adjacent side plates. Both ends of the hollow cylinders penetrate the sealed bearings on the outer walls of the side plates. The upper surface of the connecting plate is installed on one side. There is a servo motor, and a driving pulley is installed on the output shaft of the servo motor. The driving pulley is connected to the driven pulley through a transmission belt. The utility model keeps the servo motor away from the center of air circulation, avoiding the situation where the servo motor is in the center of air circulation, which can easily cause flammable and explosive air to be ignited and cause an explosion. It improves safety and has strong practicability.

Description

Explosion-proof marine axial fan

Technical Field

The utility model relates to the technical field of axial flow fans, in particular to an explosion-proof marine axial flow fan.

Background

In the sailing process of the ship, a large amount of tail gas and heat can be generated by working of a high-power diesel engine, a generator and the like in the turbine cabin, and most of the tail gas can be purified and then discharged through the tail gas treatment device, but part of the tail gas can be diffused into the interior of the turbine cabin, meanwhile, the heat can be diffused outwards along with the shells of the diesel engine, the generator and the like, the tail gas discharge channel and the like, and the tail gas contains a large amount of compounds with insufficient combustion of heavy oil such as nitrogen oxide compounds and carbon monoxide and the like, and can also contain oil mist, so that the tail gas not only pollutes the air, but also is inflammable and explosive, and the life safety of a crew and the normal use of the turbine cabin equipment are endangered.

Through retrieving, patent publication number CN216278575U discloses an explosion-proof marine axial fan, concretely relates to axial fan technical field, including the installation cover, the inner chamber bottom fixed mounting of installation cover has the bearing plate, the inner wall both sides fixed mounting of installation cover has the heat dissipation fan, bearing plate surface sliding mounting has the fan body, the air outlet has been seted up to installation cover inner chamber one side, the top fixed mounting of fan body has the link, installation cover inner chamber top slidable mounting has fixed establishment, fixed establishment includes spliced pole and spread groove, the spread groove is seted up on the surface of link, through the cooperation use between above each device can make things convenient for the installation and the dismantlement of fan body.

When the existing marine axial flow fan is in actual use, the driving structure is positioned at the air circulation position, the driving structure is positioned at the center of air circulation and is easy to cause the condition that flammable and explosive air is ignited to cause explosion when electric sparks are generated, and the safety is low, so that the explosion-proof marine axial flow fan is provided for solving the existing problems.

Disclosure of Invention

The utility model aims to provide an explosion-proof type marine axial flow fan, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an explosion-proof marine axial fan, includes the casing, the top cap is installed at the top of casing, the bottom of top cap is connected with the connecting plate through the connecting rod, and the connecting plate is located the inside of casing, the curb plate is all installed to the lower surface both sides of connecting plate, install hollow barrel between the curb plate two double-phase, and the both ends of hollow barrel all run through the sealed bearing on the curb plate outer wall, servo motor is installed to upper surface one side of connecting plate, install the driving pulley on servo motor's the output shaft, the driving pulley passes through drive belt and is connected with driven pulley, and drive belt runs through the rectangle slotted hole on the connecting plate surface central point put, driven pulley installs the outer wall central point put at hollow barrel.

Through the cooperation setting of a series of structures, when the intelligent air conditioner works, the servo motor starts to drive the driving belt pulley to rotate, the driving belt pulley rotates to drive the driven belt pulley to rotate through the driving belt, the driven belt pulley rotates to drive the fan blade in the hollow cylinder body to rotate, the fan blade sucks external air into the hollow cylinder body from the air inlet pipe and discharges the air from the air outlet pipe, in the process, the servo motor is far away from the center of air circulation, the condition that flammable and explosive air is easy to ignite and cause explosion due to the fact that the servo motor is located in the center of air circulation is avoided, safety is improved, and when a worker needs to maintain and overhaul the structure in the shell, the worker only needs to pull the U-shaped handle to move out the structures such as the servo motor and the hollow cylinder body, the worker is convenient to maintain and overhaul the internal structure of the shell, and the intelligent air conditioner is high in practicability.

Preferably, the outer walls of the two sides of the shell are respectively provided with an air inlet pipe and an air outlet pipe.

Preferably, the L-shaped fixing plates are arranged above and below the outer wall of one side of the shell, and fixing holes are formed in the outer wall of the L-shaped fixing plate.

Preferably, the surface of the top cover is provided with a heat radiation hole, and the upper surface of the top cover is provided with a U-shaped handle.

Preferably, the locating columns are arranged at four corners of the bottom of the top cover, the bottom ends of the locating columns are arranged in the locating holes, the outer walls of the locating columns are in gap connection with the hole walls of the locating holes, and the locating holes are formed in the four corners of the top of the shell.

Preferably, the bottom of reference column is installed first magnet piece, install the second magnet piece in the locating hole, first magnet piece is connected with second magnet piece magnetism.

Preferably, fan blades are arranged on the inner wall of the hollow cylinder body, the number of the fan blades is four, and the four fan blades are distributed in an annular array.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through the cooperation of a series of structures, when the air conditioner works, the servo motor is started to drive the driving belt pulley to rotate, the driving belt pulley rotates to drive the driven belt pulley to rotate, the driven belt pulley rotates to drive the fan blade in the hollow cylinder body to rotate, the fan blade sucks external air from the air inlet pipe into the hollow cylinder body and discharges the air from the air outlet pipe, in the process, the servo motor is far away from the center of air circulation, the condition that the servo motor is in the center of air circulation and is easy to cause inflammable and explosive air to be ignited to cause explosion is avoided, and the safety is improved.

2. According to the utility model, through the matching arrangement of a series of structures such as the top cover, the positioning column, the positioning hole, the first magnet block, the second magnet block and the like, when a worker needs to maintain and overhaul the structure inside the shell, the worker can move out the structures such as the servo motor, the hollow cylinder and the like outside only by pulling the U-shaped handle, so that the maintenance and overhaul of the worker on the structure inside the shell are facilitated, and the practicability is strong.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a schematic view of the structure of the present utility model shown in FIG. 2 at a partially enlarged scale;

fig. 4 is a side view of a hollow cylinder of the present utility model.

In the figure: 1. a top cover; 2. a U-shaped handle; 3. an L-shaped fixing plate; 4. a housing; 5. an air inlet pipe; 6. an air outlet pipe; 7. a servo motor; 8. a driving pulley; 9. rectangular slot holes; 10. a heat radiation hole; 11. a connecting rod; 12. a connecting plate; 13. a side plate; 14. a hollow cylinder; 15. a fan blade; 16. sealing the bearing; 17. a driven pulley; 18. a fixing hole; 19. a drive belt; 20. positioning columns; 21. positioning holes; 22. a first magnet block; 23. and a second magnet block.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

Example 1

As shown in fig. 1-4, the explosion-proof axial flow fan for a ship provided by the utility model comprises a shell 4, wherein a top cover 1 is arranged at the top of the shell 4, the bottom of the top cover 1 is connected with a connecting plate 12 through a connecting rod 11, the connecting plate 12 is positioned in the shell 4, two sides of the lower surface of the connecting plate 12 are respectively provided with a side plate 13, a hollow cylinder 14 is arranged between every two adjacent side plates 13, two ends of the hollow cylinder 14 penetrate through sealing bearings 16 on the outer wall of the side plate 13, one side of the upper surface of the connecting plate 12 is provided with a servo motor 7, a driving belt pulley 8 is arranged on an output shaft of the servo motor 7, the driving belt pulley 8 is connected with a driven belt pulley 17 through a driving belt 19, the driving belt 19 penetrates through a rectangular slotted hole 9 on the central position of the surface of the connecting plate 12, and the driven belt 17 is arranged on the central position of the outer wall of the hollow cylinder 14.

The working principle of the explosion-proof type marine axial flow fan based on the first embodiment is as follows: when the air conditioner is used, an external power supply is connected, the servo motor 7 is started to drive the driving belt pulley 8 to rotate, the driving belt pulley 8 rotates to drive the driven belt pulley 17 to rotate through the driving belt 19, the driven belt pulley 17 rotates to drive the fan blade 15 in the hollow cylinder 14 to rotate, the fan blade 15 sucks outside air from the air inlet pipe 5 into the hollow cylinder 14 and discharges the air from the air outlet pipe 6, in the process, the servo motor 7 is far away from the center of air circulation, the condition that flammable and explosive air is easy to ignite and cause in the center of air circulation of the servo motor 7 is avoided, explosion occurs, safety is improved, and when a worker needs to maintain and overhaul the structures in the shell 4, the worker only needs to overhaul the structures such as the U-shaped handle 2, the worker can move the structures such as the servo motor 7, the hollow cylinder 14 out, the worker is convenient for maintaining the internal structures of the shell 4, and practicability is high.

Example two

As shown in fig. 1 to 4, the explosion-proof axial flow fan for a ship according to the present utility model further includes: the air inlet pipe 5 and the air outlet pipe 6 are respectively arranged on the outer walls of the two sides of the shell 4, the L-shaped fixing plate 3 is arranged above and below the outer wall of one side of the shell 4, the fixing hole 18 is formed in the outer wall of the L-shaped fixing plate 3, the heat dissipation hole 10 is formed in the surface of the top cover 1, the U-shaped handle 2 is arranged on the upper surface of the top cover 1, the positioning columns 20 are respectively arranged at the four corners of the bottom of the top cover 1, the bottom ends of the positioning columns 20 are arranged in the positioning holes 21, the outer walls of the positioning columns 20 are in gap connection with the hole walls of the positioning holes 21, the positioning holes 21 are formed in the four corners of the top of the shell 4, the first magnet block 22 is arranged at the bottom end of the positioning columns 20, the second magnet block 23 is magnetically connected with the first magnet block 22, the fan blades 15 are arranged on the inner wall of the hollow cylinder 14, and the fan blades 15 are distributed in an annular array.

In this embodiment, the air inlet pipe 5 and the air outlet pipe 6 can respectively perform the functions of air inlet and air outlet, the L-shaped fixing plate 3 and the fixing hole 18 are convenient for a worker to install and fix the air inlet and air outlet, the heat dissipation hole 10 is arranged and can perform the function of ventilation and heat dissipation, the positioning columns 20 are installed at four corners at the bottom of the top cover 1, the bottom ends of the positioning columns 20 are installed in the positioning holes 21, the outer walls of the positioning columns 20 are in gap connection with the hole walls of the positioning holes 21, the bottom ends of the positioning columns 20 are provided with first magnet blocks, the positioning holes 21 are internally provided with second magnet blocks 23, and the first magnet blocks 22 are magnetically connected with the second magnet blocks 23, so that the worker can conveniently disassemble and assemble the top cover 1.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims (7)

1. The utility model provides an explosion-proof marine axial fan, includes casing (4), its characterized in that: top cap (1) is installed at the top of casing (4), the bottom of top cap (1) is connected with connecting plate (12) through connecting rod (11), and connecting plate (12) are located the inside of casing (4), curb plate (13) are all installed to lower surface both sides of connecting plate (12), install hollow cylinder (14) between every two double-phase, and sealed bearing (16) on curb plate (13) outer wall are all run through at the both ends of hollow cylinder (14), servo motor (7) are installed to upper surface one side of connecting plate (12), install driving pulley (8) on the output shaft of servo motor (7), driving pulley (8) are connected with driven pulley (17) through driving belt (19), and driving belt (19) runs through rectangle slotted hole (9) on connecting plate (12) surface central point, driven pulley (17) are installed in the outer wall central point of hollow cylinder (14).

2. An explosion-proof marine axial flow fan as claimed in claim 1, wherein: an air inlet pipe (5) and an air outlet pipe (6) are respectively arranged on the outer walls of the two sides of the shell (4).

3. An explosion-proof marine axial flow fan as claimed in claim 1, wherein: an L-shaped fixing plate (3) is arranged above and below the outer wall of one side of the shell (4), and fixing holes (18) are formed in the outer wall of the L-shaped fixing plate (3).

4. An explosion-proof marine axial flow fan as claimed in claim 1, wherein: the surface of the top cover (1) is provided with a heat radiation hole (10), and the upper surface of the top cover (1) is provided with a U-shaped handle (2).

5. An explosion-proof marine axial flow fan as claimed in claim 1, wherein: positioning columns (20) are arranged at four corners of the bottom of the top cover (1), the bottom ends of the positioning columns (20) are arranged in positioning holes (21), the outer walls of the positioning columns (20) are in gap connection with the hole walls of the positioning holes (21), and the positioning holes (21) are formed in the four corners of the top of the shell (4).

6. The explosion-proof marine axial flow fan as claimed in claim 5, wherein: the bottom of reference column (20) is installed first magnet piece (22), install second magnet piece (23) in locating hole (21), first magnet piece (22) are connected with second magnet piece (23) magnetism.

7. An explosion-proof marine axial flow fan as claimed in claim 1, wherein: the inner wall of the hollow cylinder body (14) is provided with four fan blades (15), and the four fan blades (15) are distributed in a ring-shaped array.