Annealing furnace fan

Abstract

The utility model provides an annealing furnace fan, and belongs to the technical field of fans. Comprising a machine shell, one side of an air inlet of the machine shell is fixedly connected with a heat preservation and insulation layer, one side of the heat preservation and insulation layer is fixedly connected with a protection shell, a main shaft is arranged in the protection shell, and one end of the main shaft penetrates through the heat preservation and insulation layer, extends into the machine shell and is provided with an impeller; a protection frame is installed on the side, away from the heat preservation and insulation layer, of the machine shell, a filter screen is arranged in the middle of the protection frame and used for protecting the impeller, and an installation mechanism facilitating installation of the protection frame is arranged at the position, close to the protection frame, of the machine shell. By arranging the mounting mechanism, the protective frame can be quickly mounted and dismounted, so that the impeller can be replaced without dismounting the shell, the operation is simple and convenient, and the maintenance time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to an annealing furnace fan. Background Technology

[0002] In the annealing process of aluminum profiles, centrifugal multi-blade fans are widely used due to their large air volume and low noise. However, existing vertical annealing furnace fans still have the following technical bottlenecks:

[0003] Traditional multi-blade impeller structures cause airflow stratification in the vertical direction of the furnace body, with a temperature difference of ±12℃ between the top and bottom, affecting annealing quality. Under prolonged high-temperature operation, the impeller is also prone to deformation, increasing the gap between the blades and the volute and leading to a decrease in airflow. Moreover, when the impeller needs to be disassembled, the entire casing must be disassembled, which is time-consuming and troublesome for each maintenance. Therefore, this application provides an annealing furnace fan to meet the requirements. Utility Model Content

[0004] The technical problem this utility model aims to solve is to provide an annealing furnace blower that addresses the existing traditional multi-blade impeller structure, which causes airflow stratification in the vertical direction of the furnace body, resulting in a temperature difference of ±12℃ between the top and bottom, affecting annealing quality. Under prolonged high-temperature operation, the impeller is also prone to deformation, increasing the gap between the blades and the volute, leading to reduced airflow. Furthermore, disassembling the impeller requires disassembling the entire casing, resulting in long maintenance times and cumbersome maintenance.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An annealing furnace blower includes a casing. A heat insulation layer is fixedly connected to one side of the air inlet of the casing. A protective shell is fixedly connected to one side of the heat insulation layer. A main shaft is disposed inside the protective shell. One end of the main shaft extends through the heat insulation layer into the interior of the casing and is fitted with an impeller. A protective frame is installed on the side of the casing away from the heat insulation layer. A filter screen is disposed in the middle of the protective frame to protect the impeller. An installation mechanism for facilitating the installation of the protective frame is disposed on the casing near the protective frame. The installation mechanism includes a fixing block two fixedly connected to the casing. A locking block one is slidably connected to one side of the fixing block two. An inclined surface one is formed on one side of the locking block one. A sliding groove is formed on the inclined surface one. A slider is slidably connected inside the sliding groove. A locking block two is fixedly connected to one side of the slider. An inclined surface two is formed on the locking block two. The slider is disposed on the inclined surface two. The inclined surface two abuts against the inclined surface one.

[0007] Preferably, the protective frame has two opposing blocks fixedly connected to each other, the opposing blocks being adapted to the second fixing block, and the opposite side of the second fixing block is also fixedly connected to the housing, the first fixing block being adapted to the opposing blocks.

[0008] Preferably, a rotating wheel is rotatably connected to the side of the second locking block away from the second inclined plane. The rotating wheel has a groove, and the second fixing block has a slot that is adapted to the rotating wheel.

[0009] Preferably, a motor is detachably connected to one side of the protective shell by bolts, a tapered sleeve pulley is installed at one end of the output shaft of the motor, and a tapered sleeve pulley is installed at one end of the main shaft. The tapered sleeve pulley and the tapered sleeve pulley are mutually driven by a belt.

[0010] Preferably, the blade material of the impeller is a nickel-based high-temperature alloy and a nano-composite coating.

[0011] Preferably, a sealing ring is fitted on the main shaft where it passes through the heat insulation layer, and a heat dissipation fan and two bearings supporting the main shaft are also provided on the outer wall of the main shaft to disperse and dissipate heat.

[0012] Compared with the prior art, this utility model has at least the following beneficial effects:

[0013] In the above solution, by setting up an installation mechanism, when the impeller needs to be disassembled and maintained, the rotor can be rotated externally first. When the groove on the rotor rotates to the slot, the rotor body will rotate out of the slot. At this time, the second locking block can be pushed away from the first locking block. When the second locking block moves, the slider on the inclined plane will slide inside the groove, causing the first locking block to move outward from the inside of the second fixed block. When the first locking block moves to the point where it no longer obstructs the other blocks, the protective frame can be rotated, causing the two other blocks to rotate out from the inside of the second fixed block and the inside of the first fixed block. The protective frame can then be directly removed, allowing the impeller to be disassembled and maintained normally. After the impeller maintenance is completed, the two other blocks on the protective frame can be repositioned. The protective frame is rotated so that the two blocks are rotated into the interior of the two blocks. Then, the second locking block is pushed so that the inclined surface 1 on the first locking block slides along the inclined surface 2, causing the slider to slide inside the groove. This allows the first locking block to move into the interior of the second locking block and lock the rotation path of the blocks. The advantage of this is that the protective frame can be installed and removed quickly, so that the impeller can be replaced without disassembling the casing. This is simple and convenient, shortens maintenance time, and after the first locking block locks the rotation path of the blocks, the rotating wheel can be rotated to rotate the body of the rotating wheel into the slot to fix the position of the second locking block. This further fixes the position of the first locking block and maintains the installation effect of the protective frame.

[0014] By designing an impeller, the number of blades increases by 20% compared to traditional impellers. The spacing between adjacent blades gradually changes according to the golden ratio, breaking the airflow resonance frequency, reducing eddy current losses, and improving airflow uniformity. The blade material is made of nickel-based high-temperature alloy and nano-composite coating, formed by vacuum brazing. It retains more than 90% of its strength at 650℃, effectively preventing deformation. When used with a cooling fan, it also disperses and exhausts the heat generated when the main shaft rotates. Moreover, the motor is a variable frequency model, with a preset speed mode based on the annealing process curve, automatically switching between heating, heat preservation, and cooling stages, reducing energy consumption and achieving energy-saving operation. Attached Figure Description

[0015] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0016] Figure 1 A first-view structural schematic diagram of the annealing furnace blower;

[0017] Figure 2 A partial cross-sectional three-dimensional structural schematic diagram of the annealing furnace blower from a second perspective;

[0018] Figure 3 This is a magnified three-dimensional structural diagram of the protective frame;

[0019] Figure 4 This is an enlarged structural schematic diagram of the fixed block after a two-dimensional cross-section.

[0020] Figure 5 This is a magnified schematic diagram of the three-dimensional structure of the card block 2.

[0021] [Figure Labels]

[0022] 1. Housing; 2. Thermal insulation layer; 3. Protective shell; 4. Main shaft; 5. Protective frame; 6. Clip; 7. Fixing block one; 8. Mounting mechanism; 81. Fixing block two; 82. Clamping block one; 83. Inclined surface one; 84. Slide groove; 85. Sliding block; 86. Clamping block two; 87. Inclined surface two; 88. Rotary wheel; 89. Slot; 9. Impeller; 10. Motor; 11. Tapered sleeve pulley one; 12. Bearing; 13. Tapered sleeve pulley two; 14. Cooling fan; 15. Sealing ring.

[0023] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0024] The following is a detailed description of an annealing furnace blower provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0025] like Figures 1-5 As shown, an embodiment of this utility model provides an annealing furnace blower, including a housing 1. A heat insulation layer 2 is fixedly connected to one side of the air inlet of the housing 1, and a protective shell 3 is fixedly connected to one side of the heat insulation layer 2. A main shaft 4 is disposed inside the protective shell 3. One end of the main shaft 4 extends through the heat insulation layer 2 into the interior of the housing 1 and is fitted with an impeller 9. A protective frame 5 is installed on the side of the housing 1 away from the heat insulation layer 2. A filter screen is disposed in the middle of the protective frame 5 to protect the impeller 9. An installation mechanism 8 is disposed on the housing 1 near the protective frame 5 to facilitate the installation of the protective frame 5. The installation mechanism 8 includes a fixing block 2 81 fixedly connected to the housing 1. A locking block 82 is slidably connected to one side of the fixing block 2 81. An oblique opening is formed on one side of the locking block 82. Surface 83 has a groove 84, and a slider 85 is slidably connected inside the groove 84. A locking block 86 is fixedly connected to one side of the slider 85. A second slope 87 is provided on the locking block 86, and the slider 85 is disposed on the second slope 87. The second slope 87 fits and abuts against the first slope 83. Opposite sides of the protective frame 5 are fixedly connected to the opposite sides of the locking block 5. The opposite side of the second fixing block 81 is also fixedly connected to the housing 1. The first fixing block 7 is adapted to the opposite side of the second fixing block 81. The first fixing block 7 is adapted to the opposite block 6. A rotating wheel 88 is rotatably connected to the side of the locking block 86 away from the second slope 87. The rotating wheel 88 has a groove. The second fixing block 81 has a slot 89, which is adapted to the rotating wheel 88.

[0026] By setting the installation mechanism 8, when the impeller 9 needs to be disassembled and maintained, the rotating wheel 88 can be rotated externally first. When the groove on the rotating wheel 88 rotates to the slot 89, the rotating wheel 88 body will rotate out of the slot 89. At this time, the second locking block 86 can be pushed away from the locking block 1 82. When the second locking block 86 moves, the slider 85 on the inclined surface 2 87 will slide inside the slide groove 84, causing the locking block 1 82 to move outward from the inside of the fixed block 2 81. When the locking block 1 82 moves to the point where it no longer blocks the locking blocks 6, the protective frame 5 can be rotated, causing the two locking blocks 6 to rotate out from the inside of the fixed block 2 81 and the inside of the fixed block 1 7, so that the protective frame 5 can be directly removed, allowing the impeller 9 to be disassembled and maintained normally. After the impeller 9 is maintained, the two locking blocks 6 on the protective frame 5 can be realigned with the fixed blocks respectively. The protective frame 5 rotates the two blocks 6 into the interior of the two blocks 81 and the first block 7, and then pushes the second block 86 to make the inclined surface 83 on the first block 82 slide along the inclined surface 87, causing the slider 85 to slide inside the slide groove 84, so that the first block 82 moves into the interior of the second block 81 and locks the rotation path of the blocks 6. The advantage of this is that the protective frame 5 can be installed and disassembled quickly, so that the impeller 9 can be replaced without disassembling the casing 1. It is simple and convenient, shortens the maintenance time, and after the first block 82 locks the rotation path of the blocks 6, the rotating wheel 88 can be rotated to rotate the body of the rotating wheel 88 into the slot 89 to fix the position of the second block 86, thereby further fixing the position of the first block 82 and maintaining the installation effect of the protective frame 5.

[0027] like Figure 1 and Figure 2 As shown, a motor 10 is detachably connected to one side of the protective shell 3 by bolts. A tapered sleeve pulley 11 is installed at one end of the output shaft of the motor 10, and a tapered sleeve pulley 13 is installed at one end of the main shaft 4. The tapered sleeve pulley 11 and the tapered sleeve pulley 13 are driven by a belt. The blade material of the impeller 9 is a nickel-based high-temperature alloy and a nano-composite coating. A sealing ring 15 is fitted on the main shaft 4 through the heat insulation layer 2. A heat dissipation fan 14 that can disperse and exhaust heat and two bearings 12 that support the main shaft 4 are also provided on the outer wall of the main shaft 4.

[0028] By setting impeller 9, the number of blades is increased by 20% compared with the traditional impeller 9. The spacing between adjacent blades gradually changes according to the golden ratio, breaking the airflow resonance frequency, reducing eddy current loss, and improving airflow uniformity. The blade material is made of nickel-based high-temperature alloy and nano-composite coating, formed by vacuum brazing process. The strength retention rate is more than 90% at a high temperature of 650℃, effectively preventing deformation. When used with heat dissipation fan 14, it can also disperse and exhaust the heat generated when the main shaft 4 rotates. Moreover, the motor 10 adopts frequency conversion and is set with the annealing process curve preset speed mode. It automatically switches between heating, heat preservation and cooling stages, reducing energy consumption and achieving energy-saving operation.

[0029] The technical solution provided by this utility model, through the installation mechanism 8, allows for the removal and maintenance of the impeller 9. First, the rotating wheel 88 can be rotated externally. When the groove on the rotating wheel 88 rotates to the slot 89, the rotating wheel 88 body rotates out of the slot 89. At this point, the second locking block 86 can be pushed away from the locking block 82. As the second locking block 86 moves, the slider 85 on the inclined surface 87 slides inside the groove 84, causing the first locking block 82 to move outward from inside the fixed block 81. When the first locking block 82 moves to the point where it no longer obstructs the locking blocks 6, the protective frame 5 can be rotated, causing the two locking blocks 6 to rotate out from inside the fixed block 81 and the fixed block 7, allowing the protective frame 5 to be directly removed, enabling the impeller 9 to be properly disassembled and maintained. After the impeller 9 is maintained, the two locking blocks 6 on the protective frame 5 can be removed again. Align the second fixing block 81 and the first fixing block 7 respectively, rotate the protective frame 5 to rotate the two retaining blocks 6 into the interior of the second fixing block 81 and the first fixing block 7, and then push the second locking block 86 to make the inclined surface 83 on the first locking block 82 slide along the inclined surface 87, causing the slider 85 to slide inside the slide groove 84, thereby allowing the first locking block 82 to move into the interior of the second fixing block 81 and lock the rotation path of the retaining block 6. The advantage of doing this is that the protective frame 5 can be installed and disassembled quickly, so that the impeller 9 can be replaced without disassembling the casing 1. It is simple and convenient, shortens the maintenance time, and after the first locking block 82 locks the rotation path of the retaining block 6, the rotating wheel 88 can be rotated to rotate the body of the rotating wheel 88 into the slot 89 to fix the position of the second locking block 86, thereby further fixing the position of the first locking block 82 and maintaining the installation effect of the protective frame 5.

[0030] By setting impeller 9, the number of blades is increased by 20% compared with the traditional impeller 9. The spacing between adjacent blades gradually changes according to the golden ratio, breaking the airflow resonance frequency, reducing eddy current loss, and improving airflow uniformity. The blade material is made of nickel-based high-temperature alloy and nano-composite coating, formed by vacuum brazing process. The strength retention rate is more than 90% at a high temperature of 650℃, effectively preventing deformation. When used with heat dissipation fan 14, it can also disperse and exhaust the heat generated when the main shaft 4 rotates. Moreover, the motor 10 adopts frequency conversion and is set with the annealing process curve preset speed mode. It automatically switches between heating, heat preservation and cooling stages, reducing energy consumption and achieving energy-saving operation.

[0031] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art can fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0032] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An annealing furnace blower, characterized in that, include: A housing (1) is provided with a heat insulation layer (2) fixedly connected to one side of the air inlet of the housing (1). A protective shell (3) is fixedly connected to one side of the heat insulation layer (2). A main shaft (4) is provided inside the protective shell (3). One end of the main shaft (4) extends through the heat insulation layer (2) into the interior of the housing (1) and is fitted with an impeller (9). A protective frame (5) is installed on the side of the housing (1) away from the heat insulation layer (2). A filter screen is provided in the middle of the protective frame (5) to protect the impeller (9). An installation mechanism (8) is provided on the housing (1) near the protective frame (5) to facilitate the installation of the protective frame (5). The installation mechanism (8) includes a fixing block two (81) fixedly connected to the housing (1). A locking block one (82) is slidably connected to one side of the fixing block two (81). An inclined surface one (83) is provided on one side of the locking block one (82). A sliding groove (84) is provided on the inclined surface one (83). A slider (85) is slidably connected inside the sliding groove (84). A locking block two (86) is fixedly connected to one side of the slider (85). An inclined surface two (87) is provided on the locking block two (86). The slider (85) is disposed on the inclined surface two (87). The inclined surface two (87) fits and abuts against the inclined surface one (83).

2. The annealing furnace blower according to claim 1, characterized in that, The protective frame (5) has two fixed blocks (6) on opposite sides. The two fixed blocks (6) are adapted to the second fixed block (81). The opposite side of the second fixed block (81) is also fixedly connected to the housing (1) with a first fixed block (7). The first fixed block (7) is adapted to the two fixed blocks (6).

3. The annealing furnace blower according to claim 1, characterized in that, A rotating wheel (88) is rotatably connected to the side of the second locking block (86) away from the second inclined surface (87). The rotating wheel (88) has a groove, and the second fixing block (81) has a slot (89). The slot (89) is adapted to the rotating wheel (88).

4. The annealing furnace blower according to claim 1, characterized in that, A motor (10) is detachably connected to one side of the protective shell (3) by bolts. A tapered belt pulley (11) is installed at one end of the output shaft of the motor (10), and a tapered belt pulley (13) is installed at one end of the main shaft (4). The tapered belt pulley (11) and the tapered belt pulley (13) are driven to each other by belts.

5. The annealing furnace blower according to claim 1, characterized in that, The blade material of the impeller (9) is a nickel-based high-temperature alloy and a nano-composite coating.

6. The annealing furnace blower according to claim 1, characterized in that, The main shaft (4) passes through the heat insulation layer (2) and a sealing ring (15) is fitted on the main shaft (4). The outer wall of the main shaft (4) is also provided with a heat dissipation fan (14) that can disperse and exhaust heat and two bearings (12) that support the main shaft (4).

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