Axial flow fan for air coolers

Abstract

The utility model relates to the technical field of fan especially is concerned with a kind of axial flow ventilator for air cooler, it can make two filter screens alternate work by setting two filter screens, when needing to clean one of filter screens, make another filter screen work, reduce the downtime of axial flow exhaust mechanism when cleaning filter screen, it is convenient to use, and practicality is high;Including bottom plate, branch and cylinder, branch fixed mounting is at bottom plate upper end, cylinder fixed mounting is at the upper end of branch, chamber is provided in cylinder, the front and rear ends of cylinder are all set as opening;It further includes two mounting rings, two filter screens, axial flow exhaust mechanism, protection mechanism and replacement mechanism, two filter screens are respectively fixed mounting in two mounting rings, two mounting rings are all installed on replacement mechanism, and one mounting ring is located at the rear end of cylinder and is close.

Description

Technical Field

[0001] This utility model relates to the technical field of fans, and in particular to an axial flow fan for an air cooler. Background Technology

[0002] Air coolers, as highly efficient heat exchange equipment widely used in petrochemical, power, metallurgy, and refrigeration industries, typically consist of core components including heat exchange tube bundles and axial flow fans for forced ventilation. The axial flow fans drive a large volume of ambient air through the finned tube bundles, thereby cooling or condensing the process fluids inside the tubes. To prevent impurities such as dust, fluff, fibers, and sand from entering the heat exchange area and causing fin blockage, reduced heat exchange efficiency, or even corrosion, dust filters are usually installed at the air inlet of the axial flow fans.

[0003] For example, in the prior art, the utility model patent with patent application number 202323244316.9 discloses an axial flow fan, which realizes convenient disassembly of the dust filter by setting a quick-release structure with a connecting column and a fixing mechanism on the rear side of the fan. However, when it is applied to an air cooler, the following problems exist: since it only has one filter, after a long period of use, a large amount of impurities will inevitably accumulate on the filter. When cleaning the impurities on the filter, the fan needs to be stopped and can only be restarted after cleaning is completed. The fan shutdown time is too long when cleaning the filter, which affects the continuous operation of the air cooler, making it inconvenient to use and impractical. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an axial flow fan for air coolers that can be set with two filters, allowing the two filters to work alternately. When one filter needs to be cleaned, the other filter is activated, reducing the downtime of the axial flow exhaust mechanism when cleaning the filters. This makes it convenient to use and highly practical.

[0005] This utility model discloses an axial flow fan for an air cooler, comprising a base plate, a support plate, and a cylinder. The support plate is fixedly installed on the upper end of the base plate, and the cylinder is fixedly installed on the upper end of the support plate. A chamber is provided inside the cylinder, and both the front and rear ends of the cylinder are open. It also includes two mounting rings, two filter screens, an axial flow exhaust mechanism, a protective mechanism, and a replacement mechanism. The two filter screens are respectively fixedly installed on the two mounting rings, both of which are mounted on the replacement mechanism. One mounting ring is located at the rear end of the cylinder and is close to it. The replacement mechanism has the function of moving the two mounting rings. The axial flow exhaust mechanism is installed in the chamber of the cylinder and has the function of exhausting air. The protective mechanism is installed at the front end of the cylinder and has the function of protection. When used in conjunction with an air cooler, the front end of the cylinder is directed towards... The air cooler features a heat dissipation mechanism. After opening the axial flow exhaust mechanism, outside air enters the cylinder after being filtered through a filter. The air then passes through a protective mechanism at the front of the cylinder and is blown onto the air cooler, dissipating heat and cooling it. When the filter screen at the rear of the cylinder accumulates a lot of dust, the replacement mechanism is opened to move another mounting ring and filter screen to the rear of the cylinder. The mounting ring and filter screen with the most dust are then removed from the cylinder. The removed mounting ring and filter screen can then be cleaned. By using two filters, they can work alternately. When one filter needs cleaning, the other is activated, reducing downtime for the axial flow exhaust mechanism during filter cleaning. This design is convenient and highly practical.

[0006] Preferably, the axial flow exhaust mechanism includes a mounting plate, a motor, a rotating shaft, and multiple blades. The mounting plate is fixedly installed inside the cavity of the cylinder, the motor is fixedly installed at the rear end of the mounting plate, and a protective cover is provided on the motor. The rotating shaft is rotatably installed on the mounting plate, and the power output end of the motor is connected to the rotating shaft. Multiple blades are all fixedly installed on the rotating shaft, which is coaxial with the cylinder. When exhaust is required, the motor is turned on, causing the rotating shaft to drive the multiple blades to rotate. When the multiple blades rotate, they transport the air in the cavity of the cylinder forward, allowing the air to be blown out through the front end of the cylinder, thus facilitating exhaust.

[0007] Preferably, the protective mechanism includes a protective net, which is bolted to the front end of the cylinder. The protective net reduces the amount of foreign objects entering the cylinder through the front end, prevents foreign objects from contacting the multiple blades in the cylinder, and improves the protection effect on the multiple blades.

[0008] Preferably, the replacement mechanism includes a servo indexing turntable, two rotating shafts, a connecting plate, and a forward and backward moving mechanism. The servo indexing turntable is fixedly installed on the rotating end at the front of the connecting plate. Both rotating shafts are fixedly installed on the servo indexing turntable. Two mounting rings are respectively fixedly installed on the two rotating shafts. The connecting plate is installed on the forward and backward moving mechanism, which is used to move the connecting plate forward and backward. When replacing the mounting ring on the rear side of the cylinder, the forward and backward moving mechanism first moves the connecting plate backward, thereby moving the servo indexing turntable, the two rotating shafts, and the two mounting rings forward. Then, the connecting plate is opened, and the servo indexing turntable is rotated, thereby causing the two rotating shafts to drive the two mounting rings to interchange positions. This removes the filter screen with dust adhering to the rear side of the cylinder, allowing the mounting ring with the new filter screen to rotate to the rear side of the cylinder. Then, the connecting plate is moved forward, causing the servo indexing turntable, the two rotating shafts, and the two mounting rings to move forward, so that the mounting ring on the rear side of the cylinder is now in close contact with the rear end of the cylinder, facilitating the replacement of the filter screen on the rear side of the cylinder.

[0009] Preferably, the forward and backward moving mechanism includes a linear module and a sliding plate. The linear module is fixedly mounted on the base plate, and the sliding plate is provided on the linear module. The sliding plate is mounted on the linear module, and the linear module is used to move the sliding plate forward and backward. A connecting plate is fixedly mounted on the upper end of the sliding plate. When moving the connecting plate forward and backward, the linear module is opened, so that the sliding plate moves in the forward and backward direction, thereby driving the connecting plate to move in the forward and backward direction; this facilitates the movement of the connecting plate.

[0010] Preferably, a sealing ring is provided at the rear end of the cylinder; the sealing ring contacts the mounting ring on the rear side of the cylinder; the above arrangement improves the sealing effect between the mounting ring and the cylinder.

[0011] Preferably, the cylinder is provided with multiple reinforcing ribs, and a lifting ring is provided at the upper end of the cylinder, which is fixedly installed at the upper end of the cylinder; by providing reinforcing ribs, the stability of the cylinder is improved, and by providing lifting rings, the lifting of the cylinder is facilitated.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting two filter screens, the two filter screens can work alternately. When one filter screen needs to be cleaned, the other filter screen is activated, which reduces the downtime of the axial flow exhaust mechanism when cleaning the filter screens. It is convenient to use and highly practical. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the first isometric structure of this utility model; Figure 2 This is a schematic diagram of the second isometric structure of this utility model; Figure 3 It is a structural diagram of the mounting ring, filter screen, and servo indexing turntable, etc. Figure 4 This is a schematic diagram of the mounting ring structure; Figure 5 It is a structural diagram of the blades, motor, and mounting plate, etc.

[0014] The following are labels in the attached diagram: 1. Base plate; 2. Support plate; 3. Cylinder; 4. Mounting ring; 5. Filter screen; 6. Mounting plate; 7. Motor; 8. Rotating shaft; 9. Blade; 10. Protective net; 11. Servo indexing turntable; 12. Rotating shaft; 13. Connecting plate; 14. Linear module; 15. Sliding plate; 16. Reinforcing rib; 17. Lifting ring. Detailed Implementation

[0015] To facilitate understanding of this invention, a more complete description will be provided below with reference to the accompanying drawings. This invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this invention more thorough and complete.

[0016] Example 1 like Figures 1 to 5 The axial flow fan for the air cooler of this utility model includes a base plate 1, a support plate 2, and a cylinder 3. The support plate 2 is fixedly installed on the upper end of the base plate 1, and the cylinder 3 is fixedly installed on the upper end of the support plate 2. A chamber is provided inside the cylinder 3, and both the front and rear ends of the cylinder 3 are open. It also includes two mounting rings 4, two filter screens 5, an axial flow exhaust mechanism, a protective mechanism, and a replacement mechanism. The two filter screens 5 are respectively fixedly installed on the two mounting rings 4. Both mounting rings 4 are installed on the replacement mechanism, with one mounting ring 4 located close to the rear end of the cylinder 3. The replacement mechanism has the function of moving the two mounting rings 4. The axial flow exhaust mechanism is installed in the chamber of the cylinder 3 and has the function of exhausting air. The protective mechanism is installed at the front end of the cylinder 3 and has the function of protection. When used in conjunction with the air cooler, it causes the front end of the cylinder 3 to be flushed with air. The air cooler is ventilated by opening the heat dissipation mechanism on the air cooler and then the axial flow exhaust mechanism. This allows outside air to enter the cylinder 3 after being filtered through the filter screen 5. The air then passes through the protective mechanism on the front side of the cylinder 3 and is blown onto the air cooler to dissipate heat and cool it down. When there is a lot of dust on the filter screen 5 at the rear end of the cylinder 3, the replacement mechanism is opened to replace the other mounting ring 4 and filter screen 5 on the rear side of the cylinder 3. The mounting ring 4 and filter screen 5 with more dust are then removed from the cylinder 3. After that, the staff can clean the removed mounting ring 4 and filter screen 5. By setting two filters 5, the two filters 5 can work alternately. When one filter 5 needs to be cleaned, the other filter 5 is activated, reducing the downtime of the axial flow exhaust mechanism when cleaning the filter screen 5. This makes it convenient to use and highly practical.

[0017] like Figure 1 and Figure 5 The axial flow exhaust mechanism includes a mounting plate 6, a motor 7, a rotating shaft 8, and multiple blades 9. The mounting plate 6 is fixedly installed inside the cavity of the cylinder 3. The motor 7 is fixedly installed at the rear end of the mounting plate 6 and is equipped with a protective cover. The rotating shaft 8 is rotatably installed on the mounting plate 6, and the power output end of the motor 7 is connected to the rotating shaft 8. Multiple blades 9 are all fixedly installed on the rotating shaft 8, and the rotating shaft 8 is coaxial with the cylinder 3. When exhaust is required, the motor 7 is turned on, causing the rotating shaft 8 to drive the multiple blades 9 to rotate. When the multiple blades 9 rotate, they transport the air in the cavity of the cylinder 3 forward, so that the air is blown out through the front end of the cylinder 3, which facilitates exhaust.

[0018] like Figure 1 and Figure 4 The protective mechanism includes a protective net 10, which is bolted to the front end of the cylinder 3. The protective net 10 reduces the number of foreign objects entering the cylinder 3 through the front end of the cylinder 3, prevents foreign objects from contacting the multiple blades 9 in the cylinder 3, and improves the protection effect on the multiple blades 9.

[0019] like Figure 1 and Figure 3 The replacement mechanism includes a servo indexing turntable 11, two rotating shafts 12, a connecting plate 13, and a forward and backward moving mechanism. The servo indexing turntable 11 is fixedly installed on the rotating end of the front of the connecting plate 13. Both rotating shafts 12 are fixedly installed on the servo indexing turntable 11. Two mounting rings 4 are respectively fixedly installed on the two rotating shafts 12. The connecting plate 13 is installed on the forward and backward moving mechanism, which is used to move the connecting plate 13 forward and backward. When replacing the mounting ring 4 on the rear side of the cylinder 3, the forward and backward moving mechanism first moves the connecting plate 13 backward, thereby moving the servo indexing turntable 11, two rotating shafts 12, a connecting plate 13, and a forward and backward moving mechanism. The rotating shaft 12 and the two mounting rings 4 are moved forward, and then the connecting plate 13 is opened, causing the servo indexing turntable 11 to rotate. This causes the two rotating shafts 12 to drive the two mounting rings 4 to exchange positions, so that the filter screen 5 with dust attached to the rear side of the cylinder 3 is moved away from the rear side of the cylinder 3. The mounting ring 4 with the new filter screen 5 is rotated to the rear side of the cylinder 3. Then the connecting plate 13 is moved forward, causing the servo indexing turntable 11, the two rotating shafts 12 and the two mounting rings 4 to move forward, so that the mounting ring 4 on the rear side of the cylinder 3 is now close to the rear end of the cylinder 3, which facilitates the replacement of the filter screen 5 on the rear side of the cylinder 3.

[0020] The forward and backward moving mechanism includes a linear module 14 and a sliding plate 15. The linear module 14 is fixedly mounted on the base plate 1, and the sliding plate 15 is provided on the linear module 14. The sliding plate 15 is mounted on the linear module 14 and is used to move the sliding plate 15 forward and backward. The connecting plate 13 is fixedly mounted on the upper end of the sliding plate 15. When moving the connecting plate 13 forward and backward, the linear module 14 is opened, so that the sliding plate 15 moves in the forward and backward direction, thereby driving the connecting plate 13 to move in the forward and backward direction. This facilitates the movement of the connecting plate 13.

[0021] A sealing ring is provided at the rear end of the cylinder 3; the sealing ring contacts the mounting ring 4 on the rear side of the cylinder 3; the above arrangement improves the sealing effect between the mounting ring 4 and the cylinder 3.

[0022] Example 2 Based on Example 1, such as Figure 1 The cylinder 3 is provided with multiple reinforcing ribs 16, and a lifting ring 17 is provided at the upper end of the cylinder 3. The lifting ring 17 is fixedly installed at the upper end of the cylinder 3. By providing reinforcing ribs 16, the firmness of the cylinder 3 is improved, and by providing lifting ring 17, the lifting of the cylinder 3 is facilitated.

[0023] It should be added that: all electrical equipment in this case is connected to an external controller, which coordinates and controls the operation of each piece of electrical equipment.

[0024] The filter screen 5, motor 7, blades 9, protective net 10, servo indexing turntable 11, linear module 14, and lifting ring 17 of the axial flow fan for the air cooler of this utility model are all purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0025] 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 technical principles 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 axial flow fan for an air cooler, comprising a base plate (1), a support plate (2), and a cylinder (3), wherein the support plate (2) is fixedly installed on the upper end of the base plate (1), the cylinder (3) is fixedly installed on the upper end of the support plate (2), a chamber is provided inside the cylinder (3), and both the front and rear ends of the cylinder (3) are provided as openings; characterized in that, It also includes two mounting rings (4), two filter screens (5), an axial flow exhaust mechanism, a protective mechanism, and a replacement mechanism. The two filter screens (5) are fixedly installed on the two mounting rings (4) respectively. Both mounting rings (4) are installed on the replacement mechanism. One of the mounting rings (4) is located close to the rear end of the cylinder (3). The replacement mechanism has the function of moving the two mounting rings (4). The axial flow exhaust mechanism is installed in the chamber of the cylinder (3). The axial flow exhaust mechanism has the function of exhausting air. The protective mechanism is installed at the front end of the cylinder (3). The protective mechanism has the function of protection.

2. The axial flow fan for an air cooler as described in claim 1, characterized in that, The axial flow exhaust mechanism includes a mounting plate (6), a motor (7), a rotating shaft (8), and multiple blades (9). The mounting plate (6) is fixedly installed in the cavity of the cylinder (3). The motor (7) is fixedly installed at the rear end of the mounting plate (6). A protective cover is provided on the motor (7). The rotating shaft (8) is rotatably installed on the mounting plate (6). The power output end of the motor (7) is connected to the rotating shaft (8). Multiple blades (9) are all fixedly installed on the rotating shaft (8). The rotating shaft (8) is coaxial with the cylinder (3).

3. An axial flow fan for an air cooler as described in claim 1, characterized in that, The protective mechanism includes a protective net (10), which is installed at the front end of the cylinder (3) by bolts.

4. An axial flow fan for an air cooler as described in claim 1, characterized in that, The replacement mechanism includes a servo indexing turntable (11), two rotating shafts (12), a connecting plate (13), and a forward and backward moving mechanism. The servo indexing turntable (11) is fixedly installed on the rotating end at the front of the connecting plate (13). Both rotating shafts (12) are fixedly installed on the servo indexing turntable (11). Two mounting rings (4) are fixedly installed on the two rotating shafts (12) respectively. The connecting plate (13) is installed on the forward and backward moving mechanism, which is used to move the connecting plate (13) forward and backward.

5. An axial flow fan for an air cooler as described in claim 4, characterized in that, The forward and backward moving mechanism includes a linear module (14) and a sliding plate (15). The linear module (14) is fixedly installed on the base plate (1). The sliding plate (15) is provided on the linear module (14). The sliding plate (15) is installed on the linear module (14). The linear module (14) is used to move the sliding plate (15) forward and backward. The connecting plate (13) is fixedly installed on the upper end of the sliding plate (15).

6. An axial flow fan for an air cooler as described in claim 1, characterized in that, A sealing ring is provided at the rear end of the cylinder (3).

7. An axial flow fan for an air cooler as described in claim 1, characterized in that, The cylinder (3) is provided with multiple reinforcing ribs (16), and a lifting ring (17) is provided at the upper end of the cylinder (3). The lifting ring (17) is fixedly installed at the upper end of the cylinder (3).

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