High-pressure centrifugal fan for conveying corrosive gas

Abstract

The utility model discloses a high-pressure centrifugal fan for conveying corrosive gas, which comprises a fixed shell, a fixed pipe is fixedly connected to the side wall of one side of the fixed shell, and a connecting pipe is fixedly connected to the top end of the fixed shell; the fan structure comprises a motor fixedly connected to the side wall of the fixed shell, the output end of the motor is fixedly connected with a rotating rod, a fixed shaft is rotationally installed on the inner wall of the fixed shell, and the fixed shaft penetrates through the inner side wall of the fixed shell and extends to the outer side of the fixed shell; and rotating wheels are fixedly arranged on the rotating rod and the fixed shaft in a sleeving manner. The fan has the advantages that the motor is arranged on the outer side of the conveying pipeline, so that corrosive gas is prevented from making contact with the motor, the motor cannot be damaged, the fan blades and other structures are installed in a clamping mode and other modes, the fan blades and other structures can be conveniently replaced, the service life of the fan is prolonged, and meanwhile the time needed by maintenance is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure centrifugal fans, in particular to a high-pressure centrifugal fan for conveying corrosive gases. Background Art

[0002] A centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge the gas. When transporting gas, a high-pressure centrifuge is often used as power to transport the gas through a delivery pipe.

[0003] When existing high-pressure centrifugal fans transport corrosive gases, the fan's motor and other structures are easily corroded by the gas, causing them to be damaged and unusable. The service life of the device is short, and the maintenance time of the device is long, which is not conducive to the long-term use of the device. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a high-pressure centrifugal fan for conveying corrosive gases.

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

[0006] A high-pressure centrifugal fan for conveying corrosive gas comprises: a fixed shell, a fixed pipe is fixedly connected to one side wall of the fixed shell, and a connecting pipe is fixedly connected to the top of the fixed shell; a fan structure comprises a motor fixedly connected to the side wall of the fixed shell, an output end of the motor is fixedly connected to a rotating rod, a fixed shaft is rotatably mounted on the inner wall of the fixed shell, the fixed shaft passes through the inner side wall of the fixed shell and extends to the outside of the fixed shell, a rotating wheel is fixedly sleeved on the rotating rod and the fixed shaft, the rotating wheels are connected to each other by a transmission belt, and the fixed shaft is located outside the fixed shell. A centrifugal impeller is fixedly connected to the side wall of the inner part of the shell, and a connecting shaft is installed inside the fixed shell, and the position of the connecting shaft corresponds to the connecting pipe. The bottom end of the connecting shaft is fixedly connected to a bevel gear 1, and a fixed sleeve is provided on the fixed shaft with a bevel gear 2 corresponding to the bevel gear 1, and the bevel gear 2 is meshed with the bevel gear 1. A plurality of connecting blades are fixedly connected to the side wall of the connecting shaft, and the plurality of connecting blades are arranged toward the connecting pipe. A connecting bracket is rotatably provided on the connecting shaft, and the connecting bracket is fixedly connected to the inner wall of the fixed shell at one end away from the connecting shaft.

[0007] In order to better achieve the above-mentioned purpose, the present invention adopts a further technical solution: a connecting shell is installed on the outside of the motor, and the connecting shell wraps the motor, rotating rod, rotating wheel and transmission belt inside, and the connecting shell is fixedly connected to the side wall of the fixed shell.

[0008] In order to better achieve the above purpose, the present invention adopts a further technical solution: the rotating rod and the corresponding rotating wheel are fixedly connected via threads, and the fixed shaft and the fixed housing are rotatably clamped.

[0009] In order to better achieve the above-mentioned purpose, the present invention adopts a further technical solution: a fixing flange is fixedly installed on both the fixing pipe and the connecting pipe.

[0010] The advantages of the utility model are: the motor is set to the outside of the transportation pipeline, so as to avoid corrosive gas from contacting the motor, thereby not causing damage to the motor; and the fan blades and other structures are installed by means of snap-on connection and the like, which can be easily replaced, thereby increasing the service life of the fan and shortening the time required for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the three-dimensional structure of a high-pressure centrifugal fan for conveying corrosive gases proposed in the utility model;

[0012] Figure 2 This is a top-down perspective structural diagram of a high-pressure centrifugal blower for conveying corrosive gases proposed in the present invention;

[0013] Figure 3 The utility model is a schematic side view of a three-dimensional structure of a high-pressure centrifugal fan for conveying corrosive gases.

[0014] In the figure: 1 fixed housing, 2 fixed pipe, 3 connecting pipe, 4 connecting housing, 5 fixed shaft, 6 centrifugal impeller, 7 connecting shaft, 8 connecting bracket, 9 connecting blade, 10 bevel gear 1, 11 bevel gear 2, 12 motor, 13 rotating rod, 14 rotating wheel, 15 transmission belt. 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, a high-pressure centrifugal blower for conveying corrosive gas comprises: a fixed shell 1, a fixed pipe 2 is fixedly connected to one side wall of the fixed shell 1, a connecting pipe 3 is fixedly connected to the top of the fixed shell 1, and the conveyed gas enters the fixed shell 1 from the fixed pipe 2 and is then discharged from the connecting pipe 3; the blower structure comprises a motor 12 fixedly connected to the side wall of the fixed shell 1, a rotating rod 13 is fixedly connected to the output end of the motor 12, a fixed shaft 5 is rotatably mounted on the inner wall of the fixed shell 1, the fixed shaft 5 passes through the inner wall of the fixed shell 1 and extends to the outside of the fixed shell 1, and a rotating wheel 14 is fixedly sleeved on the rotating rod 13 and the fixed shaft 5. The rotating wheels 14 are connected to each other by a transmission belt 15. The fixed shaft 5 is located on the side wall of the inner part of the fixed shell 1 and is fixedly connected to the centrifugal impeller 6. After the motor 12 is started, its output end drives the rotating rod 13 to rotate, so that the rotating wheel 14 fixedly connected to the rotating rod 13 moves accordingly. Under the action of the transmission belt 15, the other rotating wheel 14 rotates together with the fixed shaft 5. When the fixed shaft 5 rotates, the centrifugal impeller 6 fixedly sleeved on its outside rotates to transport the gas; a connecting shaft 7 is installed inside the fixed shell 1. The position of the connecting shaft 7 corresponds to the connecting pipe 3. The bottom end of the connecting shaft 7 is fixedly connected to a bevel gear 10. The fixed sleeve on the fixed shaft 5 A bevel gear 2 11 corresponding to the bevel gear 10 is provided, and the bevel gear 2 11 is meshed with the bevel gear 10. A plurality of connecting blades 9 are fixedly connected to the side wall of the connecting shaft 7, and the plurality of connecting blades 9 are arranged toward the connecting pipe 3. When the fixed shaft 5 rotates, the bevel gear 2 11 fixedly sleeved on the fixed shaft 5 rotates, causing the bevel gear 10 meshing with the bevel gear 2 11 to rotate together, allowing the connecting shaft 7 and the connecting blades 9 to rotate, thereby accelerating the speed at which air flows to the connecting pipe 3 to facilitate gas transportation; a connecting bracket 8 is rotatably sleeved on the connecting shaft 7, and the connecting bracket 8 is fixedly connected to the inner wall of the fixed shell 1 at one end away from the connecting shaft 7. The connecting bracket 8 is used to fix the connecting shaft 7; a connecting shell 4 is installed on the outside of the motor 12, and the connecting shell 4 wraps the motor 12, the rotating rod 13, the rotating wheel 14 and the transmission belt 15, and the connecting shell 4 is fixedly connected to the side wall of the fixed shell 1, and the motor 12 and other structures are protected by the connecting shell 4; the rotating rod 13 and the corresponding rotating wheel 14 are fixedly connected by threads, and the fixed shaft 5 and the fixed shell 1 are rotatably connected to facilitate the disassembly of the fixed shaft 5 and other structures; fixing flanges are fixedly installed on the fixed pipe 2 and the connecting pipe 3, and the fixed pipe 2 and the connecting pipe 3 are connected to the conveying pipe through the fixing flanges.

[0017] When the utility model is used, the fixed pipe 2 and the connecting pipe 3 are connected to the conveying pipe through the fixing flange, and the motor 12 is started. After the motor 12 is started, its output end drives the rotating rod 13 to rotate, so that the rotating wheel 14 fixedly connected to the rotating rod 13 moves accordingly. Under the action of the transmission belt 15, the other rotating wheel 14 rotates together with the fixed shaft 5. When the fixed shaft 5 rotates, the centrifugal impeller 6 fixedly sleeved on the outside thereof rotates to transport the gas. At the same time, when the fixed shaft 5 rotates, the bevel gear 2 11 fixedly sleeved on the fixed shaft 5 rotates, so that the bevel gear 1 10 meshing with the bevel gear 2 11 rotates together, so that the connecting shaft 7 and the connecting fan blades 9 rotate, thereby accelerating the speed of air flowing to the connecting pipe 3 to facilitate the transportation of the gas. Moreover, since the motor 12 is arranged on the outside of the fixed shell 1, the corrosive gas will not damage the motor 12, and when the components are damaged, replacement is more convenient.

Claims

1. A high-pressure centrifugal blower for conveying corrosive gas, characterized in that: include: A fixed shell (1), a fixed tube (2) is fixedly connected to one side wall of the fixed shell (1), and a connecting tube (3) is fixedly connected to the top of the fixed shell (1); a fan structure, comprising a motor (12) fixedly connected to the side wall of the fixed shell (1), an output end of the motor (12) is fixedly connected to a rotating rod (13), a fixed shaft (5) is rotatably mounted on the inner wall of the fixed shell (1), the fixed shaft (5) passes through the inner side wall of the fixed shell (1) and extends to the outer side of the fixed shell (1), a rotating wheel (14) is fixedly sleeved on the rotating rod (13) and the fixed shaft (5), and the rotating wheels (14) are connected to each other by a transmission belt (15), and the fixed shaft (5) is located on the side wall of the inner part of the fixed shell (1). A centrifugal impeller (6) is fixedly connected, a connecting shaft (7) is installed inside the fixed housing (1), the position of the connecting shaft (7) corresponds to the connecting pipe (3), the bottom end of the connecting shaft (7) is fixedly connected to a bevel gear 1 (10), a bevel gear 2 (11) corresponding to the bevel gear 1 (10) is fixedly provided on the fixed shaft (5), and the bevel gear 2 (11) is meshed with the bevel gear 1 (10), a plurality of connecting blades (9) are fixedly connected to the side wall of the connecting shaft (7), and the plurality of connecting blades (9) are arranged toward the connecting pipe (3), a connecting bracket (8) is rotatably provided on the connecting shaft (7), and the end of the connecting bracket (8) away from the connecting shaft (7) is fixedly connected to the inner wall of the fixed housing (1).

2. A high-pressure centrifugal blower for conveying corrosive gas according to claim 1, characterized in that: A connecting shell (4) is installed on the outside of the motor (12), and the connecting shell (4) encloses the motor (12), the rotating rod (13), the rotating wheel (14) and the transmission belt (15). The connecting shell (4) is fixedly connected to the side wall of the fixed shell (1).

3. A high-pressure centrifugal blower for conveying corrosive gas according to claim 1, characterized in that: The rotating rod (13) and the corresponding rotating wheel (14) are fixedly connected via threads, and the fixed shaft (5) and the fixed housing (1) are rotatably connected.

4. A high-pressure centrifugal blower for conveying corrosive gas according to claim 1, characterized in that: The fixed pipe (2) and the connecting pipe (3) are both fixedly mounted with fixed flanges.

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