A high-temperature resistant axial flow fan

By introducing a circulating cooling system and cleaning mechanism with cooling ring plates and cooling covers into the axial flow fan, the problem of poor heat dissipation of the axial flow fan in the fire protection field is solved, achieving efficient temperature control and convenient cleaning, and extending the service life of the fan.

CN224579513UActive Publication Date: 2026-07-31ZHEJIANG OUDEN FAN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG OUDEN FAN CO LTD
Filing Date
2025-09-26
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing axial flow fans are prone to damage due to overheating in the fire protection field due to poor heat dissipation.

Method used

The system employs a combination structure of a cooling ring plate and a cooling cover. The coolant cooled by the cooling components circulates to cool the motor and flue gas. Combined with the drive components, the cleaning components clean the inner wall of the cooling ring plate, thereby enhancing the heat dissipation effect.

Benefits of technology

It effectively reduces the overall temperature of the axial flow fan, minimizes high-temperature damage, facilitates cleaning and operation, and extends the service life of the fan.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to a high-temperature resistant axial flow fan, comprising a housing, a filter plate installed on one side of the housing, a first motor and fan blades disposed inside the housing, the fan blades being disposed at the output shaft of the first motor, a cooling mechanism disposed on the housing, the cooling mechanism comprising a cooling ring plate and a cooling cover, the cooling ring plate being disposed inside the housing, the cooling cover being disposed inside the housing and connected to the cooling ring plate, the first motor being located inside the cooling cover, a refrigeration component disposed on one side of the housing, the refrigeration component being connected to the cooling ring plate; after cooling by the refrigeration component, coolant is transported to the cooling ring plate, and then transported to the cooling cover via a connecting pipe to cool the first motor; the coolant is also transported to the cooling ring plate via a connecting pipe, and then transported back to the refrigeration component via a water pipe; the cooling ring plate cools the high-temperature flue gas, and the cooling cover cools and lowers the temperature of the first motor, thereby reducing the overall temperature of the axial flow fan. This application has the effect of reducing the occurrence of high-temperature damage to the axial flow fan.
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Description

Technical Field

[0001] This application relates to the field of axial flow fans, and more particularly to a high-temperature resistant axial flow fan. Background Technology

[0002] Axial flow fans have a wide range of applications. They are fans that direct airflow in the same direction as the fan's axis, such as electric fans and air conditioner outdoor unit fans. They are called "axial flow" because the gas flows parallel to the fan's axis. Axial flow fans are typically used in applications requiring high flow rates but low pressure. An axial flow fan is fixed in position and moves air. It mainly consists of a fan impeller and a casing; its structure is simple, but the specifications required are very high.

[0003] Axial flow fans used in fire protection typically generate a lot of heat. Heat dissipation fins are usually used to cool the motor and casing of the axial flow fan. However, using only heat dissipation fins is not effective and can easily lead to overheating and damage to the fan. Utility Model Content

[0004] To address the problem that using only heat dissipation fins to cool axial flow fans results in poor heat dissipation and is prone to overheating and damage, this application provides a high-temperature resistant axial flow fan.

[0005] The high-temperature resistant axial flow fan provided in this application adopts the following technical solution: A high-temperature resistant axial flow fan includes a housing, a filter plate detachably mounted on one side of the housing, a first motor and fan blades disposed inside the housing, the fan blades being disposed at the output shaft of the first motor, a cooling mechanism disposed on the housing, the cooling mechanism including a cooling ring plate and a cooling cover, the cooling ring plate being disposed inside the housing and distributed along the circumference of the housing, the cooling cover being disposed inside the housing and connected to the cooling ring plate via a connecting pipe, the first motor being located inside the cooling cover, the cooling cover and the cooling plate having a hollow internal structure, a refrigeration component disposed on one side of the housing, the refrigeration component being connected to the cooling ring plate via a water pipe.

[0006] By adopting the above technical solution, the coolant after the refrigeration component is cooled is transported to the cooling ring plate through a water pipe, and then to the cooling cover through a connecting pipe to cool the first motor. The coolant is then transported to the cooling ring plate through a connecting pipe on one side of the cooling cover, and then back to the refrigeration component through a water pipe. The high-temperature flue gas is cooled by the cooling ring plate, and the first motor is cooled by the cooling cover, thereby reducing the overall temperature of the axial flow fan and reducing the problem of high temperature damage to the axial flow fan.

[0007] Optionally, a rotating frame is rotatably mounted on one side of the cooling cover, and cleaning components are provided on opposite sides of the rotating frame. The cleaning components are rotatably mounted on one side of the cooling cover and fit against the inner sidewall of the cooling ring plate. A driving component for driving the rotating frame to rotate is provided on the cooling cover.

[0008] By adopting the above technical solution, when there is a lot of flue gas, it is adsorbed on the inner wall of the cooling ring plate after cooling. The driving component drives the rotating frame to rotate, which drives the cleaning component to clean the inner wall of the cooling ring plate. The operation of cleaning the cooling ring plate is more convenient.

[0009] Optionally, the cleaning component includes a connecting rod and a cleaning rod, the connecting rod being rotatably connected to the rotating frame, the cleaning rod being slidably mounted on the connecting rod, and the connecting rod being provided with a fixing component for fixing the cleaning rod.

[0010] By adopting the above technical solution, when the rotating frame rotates, it drives the cleaning rod on the outside of the connecting rod to rotate, and the cleaning rod cleans the inner wall of the cooling ring plate, making the cleaning operation more convenient.

[0011] Optionally, the driving component includes a drive motor and a first gear. The drive motor is mounted on the cooling cover, and the first gear is mounted on the output shaft of the drive motor. A gear ring is mounted on one side of the rotating frame, and one side of the gear ring meshes with one side of the first gear.

[0012] By adopting the above technical solution, the drive motor drives the first gear to rotate, which in turn drives the gear ring to rotate. The gear ring drives the rotating frame to rotate, which in turn drives the cleaning rod to rotate. The operation of driving the cleaning rod is relatively convenient.

[0013] Optionally, the fixing component includes a rotating rod and an insert block. The rotating rod is rotatably mounted at one end of the connecting rod, and the insert block is slidably mounted on the rotating rod. A slot for inserting the insert block is provided on one side of the cleaning rod, and a first spring is sleeved on the insert block.

[0014] By adopting the above technical solution, the cleaning rod is slidably installed on the connecting rod during installation. The rotating rod is then rotated until the insert block is inserted into the slot. At this time, the first spring pushes the insert block against the cleaning rod, making the installation of the cleaning rod more convenient.

[0015] Optionally, the filter plate is provided with a locking block, and a locking groove is provided on one side of the housing for the locking block to be locked in. A limiting member for limiting the locking block is provided on the side of the housing located at the locking groove.

[0016] By adopting the above technical solution, when the filter plate needs to be removed for cleaning, the limiting component is opened, the filter plate is rotated to release the locking block from the slot of the housing, the filter plate is removed for cleaning, and after cleaning, the locking block of the filter plate is locked in the slot. The operation of disassembling and installing the filter plate is relatively convenient due to the limiting component.

[0017] Optionally, the limiting member includes a second spring and a limiting block. The limiting block is slidably installed on the housing, the second spring is disposed on the housing, and one side of the limiting block is connected to the second spring. When the card block is located in the card slot, one side of the limiting block is in contact with one side of the card block.

[0018] By adopting the above technical solution, the card block is locked in the card slot, the second spring pushes the limiting block to slide, and one side of the limiting block limits and presses against one side of the card block. When the filter plate needs to be disassembled, the limiting block is slid to separate from the card block, and the card block is rotated to get out of the card slot, which is relatively convenient.

[0019] Optionally, the limiting block is provided with a pull block.

[0020] By adopting the above technical solution, the operation of pulling the limit block by pulling the pull block is more convenient.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. After the refrigeration components are cooled, the coolant is transported to the cooling ring plate through a water pipe, and then to the cooling shroud through a connecting pipe to cool the first motor. The coolant is then transported to the cooling ring plate through a connecting pipe on one side of the cooling shroud, and then back to the refrigeration components through a water pipe. The cooling ring plate cools the high-temperature flue gas, and the cooling shroud cools the first motor, thereby reducing the overall temperature of the axial flow fan and reducing the risk of high-temperature damage to the axial flow fan. 2. The drive motor drives the rotating frame to rotate, which in turn drives the cleaning rod to clean the inner wall of the cooling ring plate, making the cleaning of the cooling ring plate relatively convenient; 3. Place the card block in the card slot, and the second spring pushes the limiting block to slide. One side of the limiting block limits and presses against one side of the card block. When the filter plate needs to be disassembled, slide the limiting block to separate from the card block, rotate the card block to get it out of the card slot. The operation is relatively convenient. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of this application.

[0023] Figure 2 This is a three-dimensional structural diagram of one side of the filter plate of this application.

[0024] Figure 3 This is an enlarged three-dimensional structural diagram of part A of this application.

[0025] Figure 4 This is a three-dimensional structural diagram of the inner side of the shell of this application.

[0026] Figure 5 This is an enlarged three-dimensional structural diagram of Part B of this application.

[0027] Figure 6 This is an exploded structural diagram of the cleaning and fixing components of this application.

[0028] Those skilled in the art will understand that the elements in the accompanying drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be enlarged relative to other elements to aid in understanding the embodiments of the invention.

[0029] Reference numerals: 1. Housing; 11. Mounting block; 111. Slot; 2. Filter plate; 21. Locking block; 3. Cooling ring plate; 31. Connecting pipe; 4. Cooling cover; 41. Mounting groove; 42. First motor; 43. Fan blade; 44. Rotating track; 5. Refrigeration component; 51. Water tank; 52. Refrigeration unit; 53. Water pipe; 6. Limiting component; 61. Second spring; 62. Limiting block; 63. Sliding rod; 64. Pulling block; 7. Rotating frame; 71. Connecting plate; 72. Gear ring; 8. Cleaning component; 81. Connecting rod; 811. Slide rail; 82. Cleaning rod; 821. Slide groove; 822. Slot; 9. Fixing component; 91. Rotating rod; 92. Insertion block; 93. First spring; 10. Driving component; 101. Drive motor; 102. First gear. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] This application discloses a high-temperature resistant axial flow fan, referring to... Figure 1 and Figure 2 The system includes a housing 1, a filter plate 2 on one side of the housing 1, and a cooling mechanism on the inner side of the housing 1. The cooling mechanism includes a cooling ring plate 3 and a cooling cover 4. The cooling ring plate 3 is arranged in a ring shape on the inner side of the housing 1 and is attached to the inner circumference of the housing 1. The cooling cover 4 is arranged on the inner side of the housing 1 and is connected to the cooling ring plate 3 through a connecting pipe 31. A refrigeration component 5 is arranged on the housing 1. The refrigeration component 5 includes a water tank 51 and a chiller 52. The chiller 52 is arranged on the lower side of the housing 1. The water tank 51 is arranged on the lower side of the chiller 52 and is connected to the chiller 52 through a water pipe 53. The chiller 52 is connected to the cooling ring plate 3 through the water pipe 53.

[0032] Reference Figure 2 and Figure 3The cooling cover 4 has an inner mounting groove 41. A first motor 42 is mounted on the cooling cover 4 at the mounting groove 41, and a fan blade 43 is mounted on the output shaft of the first motor 42. Four locking blocks 21 are provided on the circumferential side wall of the filter plate 2. A mounting block 11 is provided on one side of the housing 1. The mounting block 11 has a locking groove 111. A limiting member 6 is provided on one side of the mounting block 11 at the locking groove 111. The limiting member 6 includes a second spring 61 and a limiting block 62. The limiting block 62 is slidably mounted on one side of the mounting block 11 at the locking groove 111. A sliding rod 63 is provided on one side of the mounting block 11. One side of the limiting block 62 is slidably connected to the sliding rod 63. A pull block 64 is provided on one side of the limiting block 62. The second spring 61 is sleeved on the sliding rod 63. One side of the limiting block 62 is connected to one end of the second spring 61. During installation, the limiting block 62 is slid to one side, at which point the second spring 61 is compressed, and the locking block 21 of the filter plate 2 is placed in the slot 111 of the mounting block 11. At this time, the second spring pushes the limiting block 62 to slide and close one side of the slot 111 of the mounting block 11, thus fixing the position of the filter plate 2.

[0033] Reference Figure 4 A rotating track 44 is provided on the outside of the cooling cover 4. A rotating frame 7 is rotatably installed on the cooling cover 4 at the rotating track 44. The rotating frame 7 is perpendicular to the axis of the housing 1. A connecting plate 71 is provided on the opposite sides of the rotating frame 7. The connecting plate 71 is parallel to the rotating frame 7.

[0034] Reference Figure 4 and Figure 5 A driving component 10 is provided on the cooling cover 4. The driving component 10 includes a drive motor 101 and a first gear 102. The drive motor 101 is located on the outside of the cooling cover 4, and the first gear 102 is mounted on the output shaft of the drive motor 101. A gear ring 72 is provided on one side of the rotating frame 7, and one side of the first gear 102 meshes with one side of the gear ring 72. The drive motor 101 drives the first gear 102 to rotate, which in turn drives the gear ring 72 to rotate, and the gear ring 72 drives the rotating frame 7 to rotate.

[0035] Reference Figure 6 A cleaning component 8 is provided on the connecting plate 71. The cleaning component 8 includes a connecting rod 81 and a cleaning rod 82. The connecting rod 81 is rotatably mounted on the end of the connecting plate 71 away from the rotating frame 7. The connecting rod 81 is parallel to the axis of the housing 1. The cleaning rod 82 is slidably mounted on the connecting rod 81. The connecting rod 81 is provided with a slide rail 811. The cleaning rod 82 is provided with a sliding groove 821. Bristles are provided on the outer circumferential wall of the cleaning rod 82. When the rotating frame 7 rotates, it drives the connecting rod 81 to rotate, and the connecting rod 81 drives the cleaning rod 82 to rotate. The bristles on the cleaning rod 82 clean the inner wall of the cooling ring plate 3.

[0036] Reference Figure 6A fixing component 9 is provided on the connecting rod 81. The fixing component 9 includes a rotating rod 91 and an insert 92. The rotating rod 91 is rotatably mounted on the end of the connecting rod 81 away from the connecting plate 71. The insert 92 is slidably mounted on the rotating rod 91. A slot 822 is opened on one side of the cleaning rod 82. A first spring 93 is sleeved on the insert 92. When the cleaning rod 82 needs to be replaced after a period of use, the insert 92 is pulled to stretch the first spring 93, and the insert 92 is dislodged from the slot 822. The rotating rod 91 is rotated until the insert 92 is located on one side of the slide rail 811. At this time, the cleaning rod 82 is slid out for replacement. During installation, the rotating rod 91 is rotated until the insert 92 is located in the slot 822, and the first spring 93 pushes the insert 92 into the slot 822.

[0037] The implementation principle of a high-temperature resistant axial flow fan in this application embodiment is as follows: the cooler 52 delivers coolant to the cooling ring plate 3 via the water pipe 53, then to the cooling cover 4 via the connecting pipe 31, and then to the water tank 51 via the cooling ring plate 3 for circulation. The high-temperature flue gas is cooled by the cooling ring plate 3, and the cooling cover 4 cools down the first motor 42, thereby reducing the overall temperature of the axial flow fan and reducing the problem of high temperature damage to the axial flow fan.

[0038] When the inner side of the cooling ring plate 3 needs to be cleaned, the drive motor 101 drives the rotating frame 7 to rotate, which in turn drives the connecting rod 81 to rotate. The cleaning rod 82 on the connecting rod 81 cleans the inner side wall of the cooling ring plate 3.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-temperature resistant axial flow fan, comprising a housing (1), a filter plate (2) detachably mounted on one side of the housing (1), a first motor (42) and fan blades (43) disposed inside the housing (1), the fan blades (43) being disposed at the output shaft of the first motor (42), and a cooling mechanism disposed on the housing (1), characterized in that: The cooling mechanism includes a cooling ring plate (3) and a cooling cover (4). The cooling ring plate (3) is disposed inside the housing (1) and distributed along the circumferential direction of the housing (1). The cooling cover (4) is disposed inside the housing (1) and connected to the cooling ring plate (3) through a connecting pipe (31). The first motor (42) is located inside the cooling cover (4). The cooling cover (4) and the cooling ring plate are hollow. A refrigeration component (5) is disposed on one side of the housing (1). The refrigeration component (5) is connected to the cooling ring plate (3) through a water pipe (53).

2. The high-temperature resistant axial flow fan according to claim 1, characterized in that: A rotating frame (7) is rotatably mounted on one side of the cooling cover (4). Cleaning components (8) are provided on opposite sides of the rotating frame (7). The cleaning components (8) are rotatably mounted on one side of the cooling cover (4) and are attached to the inner side wall of the cooling ring plate (3). A driving component (10) for driving the rotating frame (7) to rotate is provided on the cooling cover (4).

3. The high-temperature-resistant axial flow fan according to claim 2, characterized in that: The cleaning component (8) includes a connecting rod (81) and a cleaning rod (82). The connecting rod (81) is rotatably connected to the rotating frame (7). The cleaning rod (82) is slidably mounted on the connecting rod (81). The connecting rod (81) is provided with a fixing component (9) for fixing the cleaning rod (82).

4. The high-temperature-resistant axial flow fan according to claim 2, characterized in that: The driving component (10) includes a driving motor (101) and a first gear (102). The driving motor (101) is mounted on the cooling cover (4), and the first gear (102) is mounted on the output shaft of the driving motor (101). A gear ring (72) is mounted on one side of the rotating frame (7), and one side of the gear ring (72) meshes with one side of the first gear (102).

5. The high temperature resistant axial flow fan of claim 3, wherein: The fixing member (9) includes a rotating rod (91) and a plug (92). The rotating rod (91) is rotatably mounted at one end of the connecting rod (81). The plug (92) is slidably mounted on the rotating rod (91). A slot (822) for inserting the plug (92) is provided on one side of the cleaning rod (82). A first spring (93) is sleeved on the plug (92).

6. The high temperature resistant axial flow fan of claim 1, wherein: The filter plate (2) is provided with a locking block (21), and a slot (111) is provided on one side of the housing (1) for the locking block (21) to be locked. A limiting member (6) for limiting the locking block (21) is provided on one side of the housing (1) located in the slot (111).

7. A high temperature resistant axial flow fan as claimed in claim 6, wherein: The limiting member (6) includes a second spring (61) and a limiting block (62). The limiting block (62) is slidably installed on the housing (1). The second spring (61) is disposed on the housing (1). One side of the limiting block (62) is connected to the second spring (61). When the card block (21) is located in the card slot (111), one side of the limiting block (62) is in contact with one side of the card block (21).

8. A high-temperature resistant axial flow fan according to claim 7, characterized in that: The limiting block (62) is provided with a pull block (64).