Anti-freezing structure for fan on inner side wall of factory building
By designing L-shaped protective covers and adjustment mechanisms for the sidewall fans inside the chemical plant, the air supply direction was changed, solving the freezing problem caused by direct fan blowing, protecting equipment and pipelines, and ensuring the safety and economy of the chemical plant.
Patent Information
- Application Number
- CN202520029138.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-06
AI Technical Summary
The existing chemical plant building design does not take into account the safety hazards of the side wall fans caused by seasonal low temperatures, which may lead to freezing and cracking of pipelines and equipment.
An antifreeze structure was designed, including an L-shaped protective cover, a fan, an air outlet plate, and an adjustment mechanism. The adjustment mechanism changes the air delivery direction of the fan to prevent cold air from blowing directly into the factory. The L-shaped protective cover and adjustment mechanism, made of aluminum sheet, include components such as a turntable, a rotating shaft, a sleeve, a compression spring, and a baffle plate, to achieve flexible adjustment of the air delivery direction.
In winter, changing the air supply direction can prevent freezing and condensation, while in summer, it can ensure the volume of blower and exhaust air, reduce the possibility of animals entering the factory, protect equipment and pipelines, and is cost-effective and highly practical.
Smart Images

Figure CN223649434U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of antifreeze mechanism technology, and in particular to an antifreeze structure for the side wall fan in a factory building. Background Technology
[0002] To prevent the accumulation of flammable and toxic gases inside chemical plant buildings, wall-mounted fans are designed to blow or ventilate the surrounding walls. In winter, the weather in northern regions is cold, and the temperature inside the plant is already low. When the wall-mounted fans are running, the temperature inside the plant will drop even further, which can cause pipelines and equipment such as circulating water and softened water to freeze or crack, posing a significant safety risk.
[0003] When designing sidewall fans for existing chemical plant buildings, only the volume of forced and induced air is considered. However, the safety hazards such as freezing and cracking of pipelines and equipment caused by the fans blowing directly on equipment and pipelines due to seasonal changes and low temperatures inside the plant are not taken into account. Utility Model Content
[0004] In order to overcome the shortcomings of existing chemical plant building designs that only consider the blower and exhaust volume of the side wall fans and ignore the safety hazards such as freezing and cracking of pipelines and equipment caused by direct blowing of fans due to seasonal low temperatures, this utility model can provide an anti-freezing structure for side wall fans in the plant building.
[0005] The technical solution is as follows: An antifreeze structure for the side wall fan in the factory building includes an L-shaped protective cover, a fan, an air outlet plate and an adjustment mechanism. The fan is located on the left side inside the L-shaped protective cover. The air outlet plate and the adjustment mechanism are located inside the L-shaped protective cover. There are three air outlet plates, and the three air outlet plates are located above, to the left and to the right of the adjustment mechanism, respectively. The air outlet plate located above has an upper air outlet groove, the air outlet plate located to the left has a left air outlet groove, and the air outlet plate located to the right has a right air outlet groove. A guide port is opened on the top right side of the L-shaped protective cover. The adjustment mechanism is used to block the air outlet groove on the air outlet plate (8).
[0006] Furthermore, it is particularly preferred that the adjustment mechanism includes a turntable, a rotating shaft, a sleeve, a compression spring, and a wind deflector. The rotating shaft is rotatably connected to the rear side inside the L-shaped protective cover. The turntable is connected to the rear end of the rotating shaft. A sleeve is provided on the outer side of the rotating shaft. A compression spring is connected to the end of the sleeve away from the rotating shaft. A wind deflector is connected to the end of the compression spring away from the sleeve.
[0007] Furthermore, it is particularly preferred that the L-shaped protective cover is made of aluminum sheet.
[0008] In addition, it is particularly preferred that the wind deflector also includes rubber blocks.
[0009] Furthermore, it is particularly preferred that the rubber block is designed with a sloping structure.
[0010] In addition, it is particularly preferred that a rain cover is included, with the L-shaped protective cover having a rain cover on the left side.
[0011] In addition, it is particularly preferred that a dustproof net is included, with the rain cover containing a dustproof net.
[0012] The beneficial effects of this invention are as follows: When the device is used for blowing in winter, rotating the turntable moves the baffle plate into the right air outlet slot to block it. During rotation, the air outlet plate compresses the compression spring by squeezing the baffle plate. After the baffle plate moves from the previous air outlet slot to the next air outlet slot, it is fixed on the next air outlet slot by the compression spring. After the fan is turned on, the airflow introduced into the air inlet can be blown into the factory through the left air outlet slot, the upper air outlet slot, and the guide port, changing the fan's air delivery direction and preventing cold air from blowing directly into the factory, thus protecting equipment and pipelines. In summer, the baffle plate can be rotated into the upper air outlet slot, allowing the airflow introduced by the fan to pass through the left and right air outlet slots, ensuring the fan is directly facing the pipelines and equipment, guaranteeing the blowing and induced air volume. When the factory is not used for a long time, the baffle plate can be rotated into the left air outlet slot to block the L-shaped protective cover, reducing the possibility of animals entering the factory and ensuring the safety of the factory. This utility model utilizes an L-shaped protective cover made of aluminum sheet according to the size of the fan. By changing the fan's airflow direction, it solves the problem of freezing of pipelines and equipment caused by the fan blowing directly on the pipes in winter. Furthermore, this device is simple to manufacture, low in cost, and highly practical. The design of the turntable, shaft, sleeve, and baffle plate in this utility model allows for adjustment of the airflow direction of the L-shaped protective cover according to different seasons, offering high flexibility. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0014] Figure 2 This is a three-dimensional structural diagram of the rear side of this utility model.
[0015] Figure 3 This is a cross-sectional view of the fan and dustproof net of this utility model.
[0016] Figure 4 This is a three-dimensional structural diagram of the turntable, rotating shaft, and wind deflector of this utility model.
[0017] The markings in the diagram are: 1_L-shaped protective cover, 2_rainproof cover, 3_air inlet, 4_air guide, 5_upper air outlet, 501_left air outlet, 502_right air outlet, 6_dustproof net, 7_fan, 8_air outlet plate, 9_turntable, 10_rotating shaft, 11_sleeve, 12_compression spring, 13_wind baffle, 14_rubber block. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0019] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.
[0020] An anti-freeze structure for wall-mounted fans inside a factory building, such as... Figures 1-4 As shown, it includes an L-shaped protective cover 1, a fan 7, an air outlet plate 8, and an adjustment mechanism. The fan 7 is located on the left side inside the L-shaped protective cover 1. The air outlet plate 8 and the adjustment mechanism are located inside the L-shaped protective cover 1. There are three air outlet plates 8, which are located above, to the left and to the right of the adjustment mechanism, respectively. The upper air outlet plate 8 has an upper air outlet slot 5, the left air outlet plate 8 has a left air outlet slot 501, and the right air outlet plate 8 has a right air outlet slot 502. A guide port 4 is opened on the top right side of the L-shaped protective cover 1. The adjustment mechanism is used to block the air outlet slots on the air outlet plates 8. The L-shaped protective cover 1 is made of aluminum sheet, which is relatively economical.
[0021] like Figure 4As shown, the adjustment mechanism includes a turntable 9, a rotating shaft 10, a sleeve 11, a compression spring 12, a baffle plate 13, and a rubber block. The rotating shaft 10 is rotatably connected to the rear side of the L-shaped protective cover 1. The rotating shaft passes through the rear side wall of the L-shaped protective cover. The rear end of the rotating shaft 10 is connected to the turntable 9. A sleeve 11 is provided on the outer side of the rotating shaft 10. The sleeve 11 is located inside the L-shaped protective cover 1. A connecting rod is slidably connected to the end of the sleeve 11 away from the rotating shaft 10. A compression spring 12 is provided on the outer side of the connecting rod. A baffle plate 13 is connected to the end of the connecting rod away from the sleeve 11. The two ends of the compression spring 12 are connected to the sleeve 11 and the baffle plate 13, respectively. A rubber block 14 is provided on the baffle plate 13. The rubber block 14 can provide a better sealing effect when the baffle plate 13 is fixed on the air outlet plate 8. The rubber block 14 is designed with a sloping structure. When the baffle plate 13 is rotated clockwise, the air outlet plate 8 compresses the rubber block 14 by squeezing the sloping surface, making the rotation of the baffle plate 13 smoother.
[0022] like Figure 1 As shown, it also includes a rain cover 2. The L-shaped protective cover 1 has a rain cover 2 on the left side. The bottom of the rain cover 2 has an air inlet 3. The rain cover 2 can prevent rainwater from entering the interior of the L-shaped protective cover 1 and protect the fan 7 from the influence of the humid environment.
[0023] like Figure 3 As shown, it also includes a dustproof net 6. The rain cover 2 is equipped with a dustproof net 6. The dustproof net 6 can block dust, sand and other small particles in the air from entering the L-shaped protective cover 1, which helps to keep the fan 7 clean.
[0024] The L-shaped protective cover 1 is installed through the wall, and the rainproof cover 2 is located outside the factory building. During winter ventilation, the turntable 9 is rotated to rotate the baffle plate 13 into the right air outlet slot 502 to block it. During rotation, the air outlet plate 8 compresses the compression spring 12 by pressing the baffle plate 13. After the baffle plate 13 moves from the previous air outlet slot to the next, it is fixed to the next air outlet slot by the compression spring 12. When the fan 7 is turned on, the airflow introduced into the air inlet 3 can pass through the left air outlet slot 502. 1. The air is then blown into the factory through the upper air outlet slot 5 and the guide port 4, changing the air delivery direction of the fan 7 and preventing cold air from blowing directly into the factory, thus protecting the equipment and pipelines. In summer, the baffle plate 13 can be rotated into the upper air outlet slot 5, so that the airflow introduced by the fan 7 passes through the left air outlet slot 501 and the right air outlet slot 502, so that the fan 7 is directly facing the pipelines and equipment, ensuring the volume of blower and induced air. When the factory is not used for a long time, the baffle plate 13 can be rotated into the left air outlet slot 501 to block the L-shaped protective cover 1, reducing the possibility of animals entering the factory and ensuring the safety of the factory.
[0025] In this embodiment, it will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of the equivalents of the claims be included within the present invention.
Claims
1. An anti-freezing structure for a wall-mounted fan inside a factory building, comprising an L-shaped protective cover (1) and a fan (7), wherein the fan (7) is located on the left side inside the L-shaped protective cover (1), characterized in that, It also includes an air outlet plate (8) and an adjustment mechanism. The L-shaped protective cover (1) is equipped with an air outlet plate (8) and an adjustment mechanism. There are three air outlet plates (8), and the three air outlet plates (8) are located above, to the left and to the right of the adjustment mechanism, respectively. The air outlet plate (8) located above has an upper air outlet groove (5), the air outlet plate (8) located to the left has a left air outlet groove (501), and the air outlet plate (8) located to the right has a right air outlet groove (502). The top right side of the L-shaped protective cover (1) has a guide port (4). The adjustment mechanism is used to block the air outlet grooves on the air outlet plate (8).
2. The anti-freezing structure for the sidewall fan inside a factory building according to claim 1, characterized in that, The adjustment mechanism includes a turntable (9), a rotating shaft (10), a sleeve (11), a compression spring (12), and a wind deflector (13). The rotating shaft (10) is rotatably connected to the rear side of the L-shaped protective cover (1). The turntable (9) is connected to the rear end of the rotating shaft (10). The sleeve (11) is provided on the outer side of the rotating shaft (10). The compression spring (12) is connected to the end of the sleeve (11) away from the rotating shaft (10). The wind deflector (13) is connected to the end of the compression spring (12) away from the sleeve (11).
3. The anti-freezing structure for the sidewall fan inside a factory building according to claim 2, characterized in that, The L-shaped protective cover (1) is made of aluminum sheet.
4. The anti-freezing structure for the sidewall fan inside a factory building according to claim 3, characterized in that, It also includes rubber blocks (14), and the wind deflector (13) is provided with rubber blocks (14).
5. The anti-freezing structure for the sidewall fan inside a factory building according to claim 4, characterized in that, The rubber block (14) is designed with a sloping structure.
6. The anti-freezing structure for the sidewall fan inside a factory building according to claim 5, characterized in that, It also includes a rain cover (2), and the L-shaped protective cover (1) has a rain cover (2) on the left side.
7. The anti-freezing structure for the sidewall fan inside a factory building according to claim 6, characterized in that, It also includes a dustproof net (6), and the rain cover (2) is equipped with a dustproof net (6).