Anti-corrosion and anti-explosion centrifugal fan

Abstract

The utility model discloses an anti-corrosion and anti-explosion centrifugal fan which comprises a fixed shell, one end of the fixed shell is fixedly connected with a fixed pipe, the side wall of one side of the fixed shell is fixedly connected with a connecting pipe, and a rotating structure is installed on the fixed shell; and the buffer structure comprises a fixing hose installed at the end, away from the fixing shell, of the fixing pipe, the two ends of the fixing hose are fixedly connected with installing plates, a plurality of fixing rods are installed between the installing plates, and the two ends of each fixing rod penetrate through the corresponding installing plates correspondingly. Air flow expands when passing through the expansion pipe so as to slow down the flow rate of the air, a buffering structure is matched, the possibility of air explosion is reduced, use is safer, meanwhile, the motor is arranged on the outer side of the fixed shell and is not prone to damage, the rotating rod and other structures are convenient to disassemble and assemble, maintenance and replacement of the rotating rod and other structures are facilitated, and cost is reduced. And the shutdown time is shortened.

Description

Technical Field

[0001] The utility model relates to the field of centrifugal fans, in particular to an anti-corrosion and explosion-proof centrifugal fan. Background Art

[0002] Centrifugal fans are commonly used to transport gas, so they are installed in gas pipelines. At the same time, since part of the gas transported by the centrifugal fan has corrosive and explosive properties, a corrosion-proof and explosion-proof centrifugal fan is needed.

[0003] Existing centrifugal fans lack buffering capabilities, which increases the risk of gas explosions. At the same time, the replacement and maintenance of components of existing centrifugal fans are relatively troublesome, and the time required to recover after shutdown is too long. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an anti-corrosion and explosion-proof centrifugal fan.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] 4. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The through-hole comprises a screw bolt, and the bosses comprise a through-hole, a screw bolt, and a nut. The through-hole comprises a screw bolt, and the nut is attached to the bottom of the foot stand. The bosses comprise a through-hole, a screw bolt, and a nut.

[0007] In order to better achieve the above-mentioned purpose, the present invention adopts a further technical solution: the rotating structure includes a motor installed on one side wall of the fixed shell, and the output end of the motor is fixedly installed with a rotating rod, the rotating rod passes through the inner side wall of the fixed shell and extends to the inner side of the fixed shell, and the rotating rod is located on the side wall of the inner part of the fixed shell and is fixedly connected with a fan blade, and a fixed bracket is fixedly connected to the side wall of the fixed shell, the motor is fixedly connected to the fixed shell through the fixed bracket, the outer side of the rotating rod is threadedly connected to a connecting screw block, the connecting screw block is rotatably connected to the side wall of the fixed shell, and the rotating rod is connected to the motor through a fixing bolt.

[0008] In order to better achieve the above-mentioned purpose, the present invention adopts a further technical solution: preferably, the outer sides of the fixed shell, the rotating rod and the fan blades are all installed with an anti-corrosion layer.

[0009] In order to better achieve the above purpose, the present invention adopts a further technical solution: the bottom end of the fixed shell is fixedly connected to a fixed base.

[0010] The advantages of the utility model are: the air flow is expanded when passing through the expansion tube to slow down the flow rate of the gas, and the buffer structure is used to reduce the possibility of gas explosion, making it safer to use. At the same time, the motor is arranged on the outside of the fixed shell and is not easily damaged, and the structures such as the rotating rod are easy to disassemble and install, which is conducive to its maintenance and replacement, shortening the downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the three-dimensional structure of an anti-corrosion and explosion-proof centrifugal fan proposed by the utility model;

[0012] Figure 2 This is a side view of the three-dimensional structure of an anti-corrosion and explosion-proof centrifugal fan proposed by the utility model;

[0013] Figure 3 This is a schematic cross-sectional three-dimensional structural diagram of a fixed casing of an anti-corrosion and explosion-proof centrifugal fan proposed by the present invention.

[0014] In the figure: 1 fixed shell, 2 fixed base, 3 fixed pipe, 4 mounting plate, 5 fixed hose, 6 fixed rod, 7 fixed block, 8 fixed spring, 9 expansion tube, 10 connecting pipe, 11 connecting flange, 12 motor, 13 rotating rod, 14 connecting screw block, 15 fixed bracket, 16 fan blade. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0016] Reference Figure 1-Figure 3As shown, an anti-corrosion and explosion-proof centrifugal fan comprises: a fixed shell 1, one end of the fixed shell 1 is fixedly connected to a fixed pipe 3, a connecting pipe 10 is fixedly connected to one side wall of the fixed shell 1, and a rotating structure is installed on the fixed shell 1; a buffer structure, the buffer structure comprises a fixed hose 5 installed at one end of the fixed tube 3 away from the fixed shell 1, both ends of the fixed hose 5 are fixedly connected to a mounting plate 4, a plurality of fixed rods 6 are installed between the mounting plates 4, the two ends of each fixed rod 6 respectively pass through the corresponding mounting plate 4, and the two ends of each fixed rod 6 are fixedly connected to the fixed blocks 7 at both ends of the fixed rod 6, and the side walls of each fixed block 7 are fixedly connected to a fixed spring 8, and each fixed spring 8 is respectively sleeved on the corresponding fixed At the outside of the rod 6, the end of each fixed spring 8 is fixedly connected to the corresponding mounting plate 4. When the fixed tube 3 and the fixed hose 5 are impacted, the fixed spring 8 will be deformed, thereby buffering the impact force and protecting it; the fixed tube 3 is fixedly connected to the mounting plate 4 on one side, and the mounting plate 4 on the other side is fixedly connected to the expansion tube 9. The ends of the expansion tube 9 and the connecting tube 10 are fixedly installed with connecting flanges 11 to facilitate the connection of the connecting tube 10 and the expansion tube 9 to the pipeline. The expansion tube 9 is a combination of a frustum and a cylinder as a whole, and the expansion tube 9 is installed for expansion at one end facing the fixed shell 1. The expansion tube 9 expands when the gas flows into this place, thereby slowing down the flow rate of the expansion tube 9 and reducing the possibility of its explosion.

[0017] The rotating structure includes a motor 12 installed on one side wall of the fixed shell 1, and a rotating rod 13 is fixedly installed on the output end of the motor 12. The rotating rod 13 passes through the inner side wall of the fixed shell 1 and extends to the inner side of the fixed shell 1. The rotating rod 13 is located on the side wall of the inner part of the fixed shell 1 and is fixedly connected to the fan blade 16. The side wall of the fixed shell 1 is fixedly connected to the fixed bracket 15. The motor 12 is fixedly connected to the fixed shell 1 through the fixed bracket 15. After the motor 12 is started, its output end drives the rotating rod 13 to rotate. When the rotating rod 13 rotates, the fan blade 16 rotates accordingly, thereby transporting the gas; The outer side of the rod 13 is connected to a connecting screw block 14 through a thread, and the connecting screw block 14 is rotatably connected to the side wall of the fixed shell 1. The rotating rod 13 is connected to the motor 12 through a fixing bolt. When the rotating rod 13 rotates, the connecting screw block 14 will rotate accordingly to prevent the rotating rod 13 from moving. At the same time, after turning off the motor 12, the rotating rod 13 is removed from the motor 12, the connecting screw block 14 is fixed, and the rotating rod 13 is rotated. Under the action of the thread, the rotating rod 13 can be removed from the fixed shell 1, so that it can be repaired and replaced. Moreover, the motor 12 is located on the outside of the fixed shell 1 and is not easily affected by the transported gas.

[0018] The outsides of the fixed shell 1, the rotating rod 13 and the fan blades 16 are all installed with an anti-corrosion layer to protect the fixed shell 1 and other structures from damage; the bottom end of the fixed shell 1 is fixedly connected to a fixed base 2, which is used to support the fixed shell 1 and other structures.

[0019] When the present invention is used, the connecting pipe 10 and the expansion pipe 9 are connected to the pipeline through the connecting flange 11, and the motor 12 is started. After the motor 12 is started, its output end drives the rotating rod 13 to rotate. When the rotating rod 13 rotates, the fan blades 16 rotate accordingly, thereby transporting the gas. When the gas flows to the expansion pipe 9, as the expansion pipe 9 expands, the gas will expand, thereby slowing down the flow rate of the expansion pipe 9 and reducing the possibility of its explosion. At the same time, when the fixed pipe 3 and the fixed hose 5 are impacted, the fixed spring 8 will be deformed, thereby buffering the impact force and protecting it. In addition, after turning off the motor 12, the rotating rod 13 is removed from the motor 12, the connecting screw block 14 is fixed, and the rotating rod 13 is rotated. Under the action of the thread, the rotating rod 13 can be removed from the fixed shell 1, so that it can be repaired and replaced. Moreover, the motor 12 is located outside the fixed shell 1 and is not easily affected by the transported gas.

Claims

1. A corrosion-proof and explosion-proof centrifugal fan, characterized in that: include: A fixed shell (1), one end of the fixed shell (1) is fixedly connected to a fixed tube (3), a side wall of the fixed shell (1) is fixedly connected to a connecting tube (10), and a rotating structure is installed on the fixed shell (1); a buffer structure, the buffer structure includes a fixed hose (5) installed at one end of the fixed tube (3) away from the fixed shell (1), both ends of the fixed hose (5) are fixedly connected to a mounting plate (4), and a plurality of fixed rods (6) are installed between the mounting plates (4), the two ends of each fixed rod (6) respectively pass through the corresponding mounting plate (4), and the two ends of each fixed rod (6) are fixedly connected to the two ends of the fixed rod (6). The fixing block (7) is fixedly connected to the side wall of each fixing block (7), and each fixing spring (8) is respectively sleeved on the outer side of the corresponding fixing rod (6), and the end of each fixing spring (8) is respectively fixedly connected to the corresponding mounting plate (4). The fixing tube (3) is fixedly connected to the mounting plate (4) on one side, and the mounting plate (4) on the other side is fixedly connected to the expansion tube (9). The ends of the expansion tube (9) and the connecting tube (10) are fixedly installed with a connecting flange (11). The expansion tube (9) is a combination of a truncated cone and a cylinder as a whole, and the end of the expansion tube (9) facing the fixed shell (1) is expanded.

2. The corrosion-proof and explosion-proof centrifugal fan according to claim 1, characterized in that: The rotating structure comprises a motor (12) mounted on a side wall of a fixed housing (1); a rotating rod (13) is fixedly mounted on an output end of the motor (12); the rotating rod (13) penetrates the inner side wall of the fixed housing (1) and extends to the inner side of the fixed housing (1); and the rotating rod (13) is fixedly connected to a fan blade (16) on the side wall of the inner part of the fixed housing (1); a fixing bracket (15) is fixedly connected to the side wall of the fixed housing (1); the motor (12) is fixedly connected to the fixed housing (1) via the fixing bracket (15); the outer side of the rotating rod (13) is threadedly connected to a connecting screw (14); the connecting screw (14) is rotatably connected to the side wall of the fixed housing (1); and the rotating rod (13) is connected to the motor (12) via a fixing bolt.

3. The corrosion-proof and explosion-proof centrifugal fan according to claim 1, characterized in that: The outer sides of the fixed housing (1), the rotating rod (13) and the fan blades (16) are all provided with an anti-corrosion layer.

4. The corrosion-proof and explosion-proof centrifugal fan according to claim 1, characterized in that: The bottom end of the fixed housing (1) is fixedly connected to a fixed base (2).

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