Induced draft motor of low-concentration gas oxidation device

Abstract

The utility model discloses an induced draft motor of a low-concentration gas oxidation device, which particularly relates to the technical field of induced draft fan motors and comprises a first induced draft motor shell, a second induced draft motor shell is arranged on one side of the first induced draft motor shell, and a driving heat dissipation mechanism is arranged in the first induced draft motor shell and the second induced draft motor shell. And a dismounting mechanism is arranged between the first induced draft motor shell and the second induced draft motor shell. By arranging the driving heat dissipation mechanism and the dismounting mechanism, the working temperature of the induced draft fan motor is effectively reduced, the service life of the motor is prolonged, faults and performance reduction caused by overheating are reduced, dismounting of the motor shell is realized, maintenance and overhaul of the interior of the motor are facilitated, the maintenance efficiency is improved, the maintenance cost is reduced, and the service life of the motor is prolonged. And when a fault occurs in the motor, the shell can be quickly disassembled for treatment, so that the downtime of equipment is shortened, and the air circulation effect of the low-concentration gas oxidation device is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of induced draft fan motors, and more specifically, to an induced draft fan motor for a low-concentration gas oxidation device. Background Art

[0002] In the process of coal mining, a large amount of gas is produced. The main component of gas is methane, which is not only a high-quality and clean gas energy, but also one of the main greenhouse gases. At present, the oxidation and utilization of low-concentration gas is equipped with gas transportation system, regenerative thermal oxidizer (RTO) oxidation system, waste heat boiler and steam turbine, generator and other components, which realizes the effective utilization of low-concentration gas. The induced draft fan motor usually refers to the electric motor used to drive the induced draft fan. In the low-concentration gas power tower or other industrial equipment, the selection of the induced draft fan motor is very critical.

[0003] In the field of low-concentration gas oxidation and utilization, induced draft motors play a vital role. Due to long-term continuous operation, a large amount of heat will be generated inside the induced draft motor. If the heat cannot be dissipated in time and effectively, the operating temperature of the motor will be too high, which will cause failures, reduce motor performance, and shorten service life. When the motor fails and needs maintenance, the complex shell structure and fixing method make the disassembly process very cumbersome, consuming a lot of time and manpower, increasing maintenance costs, and also extending equipment downtime. In order to ensure the stable operation of the low-concentration gas oxidation device, improve the heat dissipation effect of the induced draft motor, simplify the maintenance process, and reduce the impact of failures, an induced draft motor for a low-concentration gas oxidation device is proposed. Utility Model Content

[0004] In order to overcome the problems and defects in the prior art, the utility model provides an induced draft motor for a low-concentration gas oxidation device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an induced draft motor of a low-concentration gas oxidation device, comprising a first induced draft motor housing, a second induced draft motor housing is arranged on one side of the first induced draft motor housing, a driving heat dissipation mechanism is arranged inside the first induced draft motor housing and the second induced draft motor housing, and a disassembly mechanism is arranged between the first induced draft motor housing and the second induced draft motor housing;

[0006] The driving heat dissipation mechanism includes a stator core, which is installed in the first induced draft motor housing and the second induced draft motor housing, a stator winding is fixedly installed in the stator core, a permanent magnet rotor is fixedly installed in the stator winding, one end of the permanent magnet rotor is fixedly connected to the first rotating shaft, the other end of the permanent magnet rotor is fixedly connected to the second rotating shaft, a bearing is fixedly installed between the second rotating shaft and the second induced draft motor housing, a heat dissipation fan blade is fixedly installed on one end of the first rotating shaft, a motor back cover is fixedly connected to one side of the first induced draft motor housing, a heat dissipation port is opened on one side surface of the motor back cover, and a dustproof net is fixedly installed inside the heat dissipation port.

[0007] Preferably, the disassembly and assembly mechanism includes a first connecting block, the first connecting block is fixed to the outside of the first induced draft motor housing, the second induced draft motor housing is fixedly connected to the outside of the second induced draft motor housing, and threaded holes are provided on one side surface of the first connecting block and the second connecting block.

[0008] Preferably, a threaded rod is threadedly connected inside the threaded hole, and a rocker is fixedly connected to one end of the threaded rod.

[0009] Preferably, a positioning groove is provided on one side surface of the first induced draft motor housing, a sealing ring is fixedly connected to one side of the second induced draft motor housing, and the positioning groove and the sealing ring are movably engaged with each other.

[0010] Preferably, a first base is fixedly connected to the bottom of the first induced draft motor housing, and a second base is fixedly connected to the bottom of the second induced draft motor housing.

[0011] Preferably, a card slot is provided on one side surface of the first base, a card plate is fixedly connected to one side of the second base, and the card slot and the card plate are movably connected.

[0012] Preferably, one end of the second rotating shaft passes through the second induced draft motor housing and extends to one side of the second induced draft motor housing.

[0013] Technical effects and advantages of the utility model:

[0014] 1. By setting up a driving heat dissipation mechanism and a disassembly and assembly mechanism, the permanent magnet rotor drives the rotating shaft to drive the heat dissipation fan blades to rotate, and the hot air inside the motor is discharged, which effectively reduces the operating temperature of the induced draft fan motor, prolongs the service life of the motor, ensures that the motor operates in a stable temperature environment, and reduces failures and performance degradation caused by overheating. The motor casing is disassembled by rotating the rocker to drive the threaded rod, which is convenient for maintenance and repair of the motor, improves maintenance efficiency, and reduces maintenance costs. When a fault occurs inside the motor, the casing can be quickly disassembled for processing, reducing equipment downtime and ensuring the air circulation effect of the low-concentration gas oxidation device;

[0015] 2. By setting a dustproof net inside the heat dissipation port, dust can be prevented from entering the motor, reducing dust pollution and wear on the internal parts of the motor, keeping the inside of the motor clean, and reducing the risk of short circuit and failure caused by dust accumulation. At the same time, the card plate is inserted into the card slot and the sealing ring is inserted into the positioning slot, which facilitates the rapid connection and positioning between the first induced draft motor housing and the second induced draft motor housing. At the same time, the sealing ring is used to ensure the sealing effect of the connection between the first induced draft motor housing and the second induced draft motor housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the structure of the utility model in a split state.

[0018] Figure 3 It is a schematic diagram of the structure of the utility model when viewed from above.

[0019] Figure 4 It is a schematic structural diagram of the first induced draft motor housing of the utility model.

[0020] Figure 5 It is a schematic structural diagram of the second induced draft motor housing of the utility model.

[0021] Figure 6 It is a front cross-sectional structural schematic diagram of the utility model.

[0022] The accompanying drawings are marked as follows: 1. first induced draft motor housing; 2. second induced draft motor housing; 3. stator core; 4. stator winding; 5. permanent magnet rotor; 6. first rotating shaft; 7. second rotating shaft; 8. bearing; 9. heat dissipation fan blades; 10. heat dissipation port; 11. dust screen; 12. first connecting block; 13. second connecting block; 14. threaded hole; 15. threaded rod; 16. rocker; 17. positioning groove; 18. sealing ring; 19. first base; 20. card slot; 21. second base; 22. card plate; 23. motor back cover. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] As attached Figure 1-6The illustrated low-concentration gas oxidation device induced draft motor comprises a first induced draft motor housing 1, a second induced draft motor housing 2 is arranged on one side of the first induced draft motor housing 1, a driving heat dissipation mechanism is arranged inside the first induced draft motor housing 1 and the second induced draft motor housing 2, and a disassembly mechanism is arranged between the first induced draft motor housing 1 and the second induced draft motor housing 2;

[0025] The driving heat dissipation mechanism includes a stator core 3, which is installed in the first induced draft motor housing 1 and the second induced draft motor housing 2. A stator winding 4 is fixedly installed inside the stator core 3, and a permanent magnet rotor 5 is fixedly installed inside the stator winding 4. One end of the permanent magnet rotor 5 is fixedly connected to a first rotating shaft 6, and the other end of the permanent magnet rotor 5 is fixedly connected to a second rotating shaft 7. A bearing 8 is fixedly installed between the second rotating shaft 7 and the second induced draft motor housing 2. A heat dissipation fan blade 9 is fixedly installed at one end of the first rotating shaft 6. A motor back cover 23 is fixedly connected to one side of the first induced draft motor housing 1. A heat dissipation port 10 is opened on one side of the motor back cover 23, and a dustproof net 11 is fixedly installed inside the heat dissipation port 10.

[0026] As attached Figure 1-6 As shown, the disassembly and assembly mechanism includes a first connecting block 12, the first connecting block 12 is fixed to the outside of the first induced draft motor housing 1, and the second connecting block 13 is fixedly connected to the outside of the second induced draft motor housing 2. The first connecting block 12 and the second connecting block 13 are both provided with threaded holes 14 on one side surface, and a threaded rod 15 is threadedly connected inside the threaded hole 14. A rocker 16 is fixedly connected to one end of the threaded rod 15, so that the first induced draft motor housing 1 and the second induced draft motor housing 2 can be disassembled and installed by rotating the rocker 16.

[0027] As attached Figure 1-5 As shown, a positioning groove 17 is provided on one side surface of the first induced draft motor housing 1, a sealing ring 18 is fixedly connected to one side of the second induced draft motor housing 2, and the positioning groove 17 and the sealing ring 18 are movably connected. A first base 19 is fixedly connected to the bottom of the first induced draft motor housing 1, and a second base 21 is fixedly connected to the bottom of the second induced draft motor housing 2. A card slot 20 is provided on one side surface of the first base 19, and a card plate 22 is fixedly connected to one side of the second base 21, and the card slot 20 and the card plate 22 are movably connected, which facilitates the rapid positioning and connection of the first induced draft motor housing 1 and the second induced draft motor housing 2 and ensures the sealing effect of the connection.

[0028] As attached Figure 1 , 2 As shown in FIGS. 3, 5 and 6, one end of the second rotating shaft 7 passes through the second induced draft motor housing 2 and extends to one side of the second induced draft motor housing 2, so as to facilitate the rotation of the second rotating shaft 7 at the motor output end.

[0029] Working principle of the utility model: When the induced draft motor of a low-concentration gas oxidation device provided by the utility model is in use, the low-concentration gas oxidation device induces air through the induced draft fan motor, which has high energy consumption and needs to be dissipated to ensure the normal use of the induced draft fan motor. The permanent magnet rotor 5 drives the first rotating shaft 6 and the second rotating shaft 7 to rotate, so that the first rotating shaft 6 drives the heat dissipation fan blades 9 at one end thereof to rotate, and the hot air inside the motor is discharged through the heat dissipation port 10 opened on the surface of one side of the motor rear cover 23, thereby improving the heat dissipation effect. At the same time, the dust-proof effect is performed through the dust-proof net 11 inside the heat dissipation port 10 to prevent dust from entering the first induced draft motor housing 1. During the disassembly process, the rocker 16 is rotated to drive the threaded rod 15 to rotate through the rocker 16. At the same time, due to the threaded connection between the threaded rod 15 and the threaded hole 14, the threaded rod 15 is moved out of the threaded hole 14 on the surface of the first connecting block 12, and then the second induced draft motor housing 2 is pulled to complete the disassembly of the first induced draft motor housing 1 and the second induced draft motor housing 2.

[0030] Finally: The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An induced draft motor for a low-concentration gas oxidation device, comprising a first induced draft motor housing (1), characterized in that: A second induced draft motor housing (2) is disposed on one side of the first induced draft motor housing (1), a driving heat dissipation mechanism is disposed inside the first induced draft motor housing (1) and the second induced draft motor housing (2), and a disassembly mechanism is disposed between the first induced draft motor housing (1) and the second induced draft motor housing (2); The driving heat dissipation mechanism comprises a stator core (3), the stator core (3) being mounted inside a first induced draft motor housing (1) and a second induced draft motor housing (2), a stator winding (4) being fixedly mounted inside the stator core (3), a permanent magnet rotor (5) being fixedly mounted inside the stator winding (4), one end of the permanent magnet rotor (5) being fixedly connected to a first rotating shaft (6), the other end of the permanent magnet rotor (5) being fixedly connected to a second rotating shaft (7), a bearing (8) being fixedly mounted between the second rotating shaft (7) and the second induced draft motor housing (2), a heat dissipation blade (9) being fixedly mounted on one end of the first rotating shaft (6), a motor rear cover (23) being fixedly connected to one side of the first induced draft motor housing (1), a heat dissipation port (10) being provided on one side of the surface of the motor rear cover (23), and a dustproof net (11) being fixedly mounted inside the heat dissipation port (10).

2. The induced draft motor of the low-concentration gas oxidation device according to claim 1, characterized in that: The disassembly and assembly mechanism comprises a first connection block (12), the first connection block (12) being fixed to the outside of the first induced draft motor housing (1), the second connection block (13) being fixedly connected to the outside of the second induced draft motor housing (2), and threaded holes (14) being provided on one side surface of each of the first connection block (12) and the second connection block (13).

3. The induced draft motor of the low concentration gas oxidation device according to claim 2, characterized in that: A threaded rod (15) is threadedly connected inside the threaded hole (14), and a rocker (16) is fixedly connected to one end of the threaded rod (15).

4. The induced draft motor of the low concentration gas oxidation device according to claim 1, characterized in that: A positioning groove (17) is provided on one side surface of the first induced draft motor housing (1), a sealing ring (18) is fixedly connected to one side of the second induced draft motor housing (2), and the positioning groove (17) and the sealing ring (18) are movably engaged.

5. The induced draft motor of the low concentration gas oxidation device according to claim 1, characterized in that: The bottom of the first induced draft motor housing (1) is fixedly connected to a first base (19), and the bottom of the second induced draft motor housing (2) is fixedly connected to a second base (21).

6. The induced draft motor of the low-concentration gas oxidation device according to claim 5, characterized in that: A clamping groove (20) is provided on one side surface of the first base (19), and a clamping plate (22) is fixedly connected to one side of the second base (21), and the clamping groove (20) and the clamping plate (22) are movably clamped.

7. The induced draft motor of the low-concentration gas oxidation device according to claim 1, characterized in that: One end of the second rotating shaft (7) passes through the second induced draft motor housing (2) and extends to one side of the second induced draft motor housing (2).

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