Anti-explosion axial flow fan

Abstract

The utility model discloses an explosion-proof axial flow fan, which belongs to the technical field of axial flow fans, and comprises an axial flow shell, an explosion-proof fan is arranged in the axial flow shell, fan blades are fixed at the output end of the explosion-proof fan, a bottom support seat is fixed at the bottom of the explosion-proof fan through bolts, and the bottom support seat is fixed at the bottom of the explosion-proof fan through bolts. The bottom of the bottom supporting base is fixedly connected with the axial flow shell, heat dissipation mechanisms are arranged on the two sides of the axial flow shell and comprise cooling boxes, the cooling boxes are arranged on the two sides of the axial flow shell, bottom supporting plates are arranged at the bottoms of the cooling boxes, and liquid boxes are arranged at the positions, located at the bottoms of the cooling boxes, of the tops of the bottom supporting plates. According to the explosion-proof fan, high-temperature air can be effectively cooled, and the cooled air is transferred to the outer side of the explosion-proof fan, so that the temperature of the explosion-proof motor is effectively prevented from being too high, the operation safety and stability of the explosion-proof fan in a high-temperature environment can be improved, and the service life of the explosion-proof fan can be prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of axial flow fans, and particularly relates to an explosion-proof axial flow fan. Background Technique

[0002] In special environments such as chemical industry, coal mines, and petroleum where flammable and explosive substances exist, explosion-proof axial flow fans are widely used because they can effectively prevent the motor from generating sparks or high temperatures during operation, which may cause explosions. Traditional explosion-proof axial flow fans mainly achieve the explosion-proof function by using explosion-proof motors and explosion-proof structure designs. However, in high-temperature or continuous operation situations, the explosion-proof motor is prone to overheating due to being in a high-temperature environment for a long time, which affects the stability and service life of the motor and even poses a safety hazard.

[0003] Currently, although existing explosion-proof axial flow fans have many improvements in terms of structure and material selection, there is still a lack of effective solutions for the heat dissipation problem of the motor. Some existing explosion-proof fans use heat sinks or forced air cooling methods, but these methods have limited heat dissipation effects in the face of extremely high-temperature environments and cannot fundamentally solve the problem of overheating of the explosion-proof motor. Therefore, we designed an explosion-proof axial flow fan to provide another technical solution for the above technical problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide an explosion-proof axial flow fan to solve the problems in the existing technology during use mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an explosion-proof axial flow fan, including an axial flow housing, an explosion-proof fan is arranged inside the axial flow housing, a fan blade is fixed at the output end of the explosion-proof fan, a bottom support seat is bolted to the bottom of the explosion-proof fan, the bottom of the bottom support seat is fixedly connected to the axial flow housing, and heat dissipation mechanisms are arranged on both sides of the axial flow housing.

[0006] Preferably, the heat dissipation mechanism includes a cooling box, cooling boxes are arranged on both sides of the axial flow housing, a bottom support plate is arranged at the bottom of the cooling box, a liquid box is arranged on the top of the bottom support plate and at the bottom of the cooling box, the cooling box is connected to the liquid box through a first pipeline, a spraying box is arranged at the top of the cooling box, and the spraying box is connected to the liquid box through a second pipeline;

[0007] A plurality of ventilation pipelines are evenly arranged at both ends inside the cooling box, a plurality of rectangular fins are arranged outside the ventilation pipelines and inside the liquid box, a rectangular sealing plate is fixed on one side inside the liquid box, and the ventilation pipelines penetrate through the inside of the rectangular sealing plate.

[0008] Preferably, a plurality of circular heat dissipation fins are uniformly fixed on the outer side of the first pipeline, and a liquid pump is arranged on the outer side of the second pipeline.

[0009] Preferably, the heat dissipation mechanism further includes a fan fixing frame. The fan fixing frames are arranged on both sides of one end of the cooling box, and a heat dissipation fan is fixed inside the fan fixing frame.

[0010] Preferably, longitudinal limiting blocks are arranged on the top and bottom of the fan fixing frame. U-shaped moving rods are fixed at both ends of the longitudinal limiting blocks. A circular sliding block is fixed at the bottom of the U-shaped moving rod. The circular sliding block is located inside the fan fixing frame and is slidably connected to the fan fixing frame. A rigid spring is fixed at the bottom of the circular sliding block.

[0011] Preferably, a vertical sliding groove is formed inside the fan fixing frame. The circular sliding block is located inside the vertical sliding groove and is slidably connected to the fan fixing frame through the vertical sliding groove, and the rigid spring is located inside the vertical sliding groove.

[0012] Preferably, longitudinal limiting grooves are formed on the top and bottom of the cooling box. The longitudinal limiting blocks and the cooling box are in clearance fit through the arrangement of the longitudinal limiting grooves.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Through a series of designs, the present utility model can effectively cool the high-temperature air and transfer the cooled air to the outside of the explosion-proof fan, thereby effectively preventing the explosion-proof motor from overheating, improving the operation safety and stability of the explosion-proof fan in a high-temperature environment, and prolonging the service life of the explosion-proof fan. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0016] Figure 2 is a side view of the axial flow housing of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the liquid tank and the bottom support plate of the present utility model;

[0018] Figure 4 is a structural sectional view of the inside of the liquid tank of the present utility model;

[0019] Figure 5 is a schematic structural diagram of the heat dissipation fan and the fan fixing frame of the present utility model;

[0020] Figure 6 is a structural sectional view of the inside of the fan fixing frame of the present utility model.

[0021] In the figure: 1, axial flow housing; 2, explosion-proof fan; 3, fan blade; 4, bottom support base; 5, cooling box; 6, liquid tank; 7, bottom support plate; 8, first pipe; 9, circular heat dissipation fins; 10, second pipe; 11, liquid pump; 12, spraying box; 13, rectangular sealing plate; 14, heat dissipation fan; 15, ventilation duct; 16, rectangular fins; 17, fan fixing frame; 18, longitudinal limiting block; 19, U-shaped moving rod; 20, circular sliding block; 21, rigid spring. Specific implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Refer to Figure 1-6 , an explosion-proof axial flow fan, including an axial flow housing 1, an explosion-proof fan 2 is arranged inside the axial flow housing 1, a fan blade 3 is fixed at the output end of the explosion-proof fan 2, a bottom support base 4 is bolted to the bottom of the explosion-proof fan 2, the bottom of the bottom support base 4 is fixedly connected to the axial flow housing 1, and heat dissipation mechanisms are arranged on both sides of the axial flow housing 1;

[0024] The heat dissipation mechanism includes a cooling box 5, cooling boxes 5 are arranged on both sides of the axial flow housing 1, a bottom support plate 7 is arranged at the bottom of the cooling box 5, a liquid tank 6 is arranged on the top of the bottom support plate 7 and at the bottom of the cooling box 5, the cooling box 5 is connected to the liquid tank 6 through a first pipe 8, a spraying box 12 is arranged on the top of the cooling box 5, and the spraying box 12 is connected to the liquid tank 6 through a second pipe 10;

[0025] A plurality of ventilation ducts 15 are evenly arranged at both ends inside the cooling box 5, a plurality of rectangular fins 16 are arranged on the outer side of the ventilation ducts 15 and inside the liquid tank 6, a rectangular sealing plate 13 is fixed on one side inside the liquid tank 6, and the ventilation ducts 15 penetrate through the inside of the rectangular sealing plate 13;

[0026] A plurality of circular heat dissipation fins 9 are evenly fixed on the outer side of the first pipe 8, a liquid pump 11 is arranged on the outer side of the second pipe 10. Through the arrangement of the circular heat dissipation fins 9, the liquid inside the first pipe 8 can be better cooled, and through the operation of the liquid pump 11, the liquid inside the liquid tank 6 is injected into the spraying box 12 through the second pipe 10;

[0027] The outside air is injected into the interior of the axial flow housing 1 through the ventilation duct 15. During the air circulation process, the operation of the liquid pump 11 causes the liquid inside the liquid tank 6 to be injected into the interior of the spraying tank 12 through the second pipe 10. Through the setting of the spraying tank 12, the liquid is sprayed onto the outer sides of the rectangular fins 16 and the ventilation duct 15, thereby reducing the temperature of the air inside the ventilation duct 15, enabling the air to be cooled, and improving the cooling efficiency. Through the setting of the first pipe 8, the liquid inside the cooling tank 5 is injected into the liquid tank 6, causing the liquid to rotate. During the process of the liquid passing through the first pipe 8, the setting of the circular radiating fins 9 can effectively dissipate the heat of the temperature inside the first pipe 8;

[0028] The heat dissipation mechanism further includes a fan fixing frame 17. Both sides at one end of the cooling tank 5 are provided with a fan fixing frame 17, and a heat dissipation fan 14 is fixed inside the fan fixing frame 17;

[0029] Both the top and bottom of the fan fixing frame 17 are provided with longitudinal limiting blocks 18. U-shaped moving rods 19 are fixed at both ends of the longitudinal limiting blocks 18. A circular sliding block 20 is fixed at the bottom of the U-shaped moving rod 19. The circular sliding block 20 is located inside the fan fixing frame 17 and is slidably connected to the fan fixing frame 17. A rigid spring 21 is fixed at the bottom of the circular sliding block 20;

[0030] Here, the operation of the heat dissipation fan 14 enables the cooled air inside the ventilation duct 15 to be transported, so that the low-temperature air can be transported to the outside of the explosion-proof fan 2, thereby effectively reducing the temperature of the explosion-proof fan 2;

[0031] A vertical chute is opened inside the fan fixing frame 17. The circular sliding block 20 is located inside the vertical chute and is slidably connected to the fan fixing frame 17 through the vertical chute. And the rigid spring 21 is located inside the vertical chute. Through the setting of the vertical chute, the circular sliding block 20 can slide vertically inside the fan fixing frame 17;

[0032] Longitudinal limiting grooves are opened at both the top and bottom of the cooling tank 5. The longitudinal limiting block 18 and the cooling tank 5 are in clearance fit through the setting of the longitudinal limiting grooves, so that the longitudinal limiting block 18 can enter the interior of the cooling tank 5, thereby restricting the movement of the fan fixing frame 17.

[0033] Here, pulling the U-shaped moving rod 19 in the direction away from the fan fixing frame 17, the pulling of the U-shaped moving rod 19 enables the circular sliding block 20 to be inside the fan fixing frame 17. During this process, the rigid spring 21 is in a state of being stretched by force, so that the longitudinal limiting block 18 can leave the interior of the cooling tank 5, thereby enabling the fan fixing frame 17 to be disassembled for the maintenance and replacement of the heat dissipation fan 14;

[0034] Working principle: The air from the outside is injected into the interior of the axial flow housing 1 through the ventilation duct 15. During the air circulation process, the operation of the liquid pump 11 causes the liquid in the liquid tank 6 to be injected into the interior of the spraying tank 12 through the second pipe 10. Through the setting of the spraying tank 12, the liquid is sprayed onto the outer sides of the rectangular fins 16 and the ventilation duct 15, thereby reducing the temperature of the air inside the ventilation duct 15, enabling the air to be cooled, and improving the cooling efficiency. Through the setting of the first pipe 8, the liquid in the cooling tank 5 is injected into the liquid tank 6, causing the liquid to rotate. During the process of the liquid passing through the first pipe 8, the setting of the circular radiating fins 9 can effectively dissipate the heat of the temperature inside the first pipe 8;

[0035] The operation of the cooling fan 14 enables the cooled air inside the ventilation duct 15 to be transported, so that the low-temperature air can be transported to the outside of the explosion-proof fan 2, thereby effectively reducing the temperature of the explosion-proof fan 2;

[0036] Pull the U-shaped moving rod 19 in the direction away from the fan fixing frame 17. The pulling of the U-shaped moving rod 19 enables the circular sliding block 20 to be inside the fan fixing frame 17. During this process, the rigid spring 21 is in a state of being stretched by force, causing the longitudinal limiting block 18 to leave the interior of the cooling tank 5, and thus enabling the fan fixing frame 17 to be disassembled for the maintenance and replacement of the cooling fan 14.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof axial flow fan, characterized in that: The invention comprises an axial flow housing (1), wherein an explosion-proof fan (2) is arranged inside the axial flow housing (1), a fan blade (3) is fixed to the output end of the explosion-proof fan (2), a bottom support seat (4) is fixed to the bottom of the explosion-proof fan (2) by bolts, the bottom of the bottom support seat (4) is fixedly connected to the axial flow housing (1), and heat dissipation mechanisms are arranged on both sides of the axial flow housing (1).

2. The explosion-proof axial flow fan according to claim 1, characterized in that: The heat dissipation mechanism comprises a cooling box (5), the cooling boxes (5) are arranged on both sides of the axial flow housing (1), the bottom of the cooling box (5) is arranged with a bottom support plate (7), the top of the bottom support plate (7) and located at the bottom of the cooling box (5) is arranged with a liquid box (6), the cooling box (5) and the liquid box (6) are connected via a first pipe (8), the top of the cooling box (5) is arranged with a spray box (12), and the spray box (12) and the liquid box (6) are connected via a second pipe (10); A plurality of ventilation ducts (15) are evenly arranged at both ends of the interior of the cooling box (5); a plurality of rectangular fins (16) are arranged outside the ventilation ducts (15) and inside the liquid box (6); a rectangular sealing plate (13) is fixed to one side of the interior of the liquid box (6), and the ventilation duct (15) passes through the interior of the rectangular sealing plate (13).

3. The explosion-proof axial flow fan according to claim 2, characterized in that: A plurality of circular heat dissipation fins (9) are evenly distributed and fixed on the outer side of the first pipe (8), and a liquid pump (11) is arranged on the outer side of the second pipe (10).

4. The explosion-proof axial flow fan according to claim 2, characterized in that: The heat dissipation mechanism also includes a fan fixing frame (17), and the fan fixing frames (17) are arranged on both sides of one end of the cooling box (5), and a heat dissipation fan (14) is fixed inside the fan fixing frame (17).

5. The explosion-proof axial flow fan according to claim 4, characterized in that: The top and bottom of the fan fixing frame (17) are both provided with longitudinal limit blocks (18), both ends of the longitudinal limit blocks (18) are fixed with U-shaped moving rods (19), the bottom of the U-shaped moving rod (19) is fixed with a circular sliding block (20), the circular sliding block (20) is located inside the fan fixing frame (17) and is slidably connected to the fan fixing frame (17), and the bottom of the circular sliding block (20) is fixed with a rigid spring (21).

6. The explosion-proof axial flow fan according to claim 5, characterized in that: A vertical slide groove is provided inside the fan fixing frame (17), the circular sliding block (20) is located inside the vertical slide groove and is slidably connected to the fan fixing frame (17) via the vertical slide groove, and the rigid spring (21) is located inside the vertical slide groove.

7. The explosion-proof axial flow fan according to claim 5, characterized in that: The top and bottom of the cooling box (5) are both provided with longitudinal limit grooves, and the longitudinal limit block (18) and the cooling box (5) are fitted with each other through a clearance provided by the longitudinal limit grooves.

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