A louver structure for preventing icing

Abstract

The utility model provides a louver structure preventing icing, cooling tower, the bottom air inlet of cooling tower is installed with louver, the louver includes window frame and the louver blade of multiple oblique distribution fixed in window frame, the top inboard of window frame is fixed with the deflector of oblique setting and is located the top of louver blade, the deflector oblique downward one end of department extends the outboard of window frame, the surface of louver blade is coated with anti -icing coating, this scheme simple structure, easy to make, can install fast, through setting up deflector on louver, avoided the spray water on tower wall to drop on louver, thereby avoided the louver to appear the ice phenomenon of hanging, to guarantee the ventilation condition of louver, makes the cold air of tower outside and the normal circulation replacement in tower, ensures the normal cooling operation of cooling tower.

Description

Technical Field

[0001] This utility model relates to the field of cooling equipment, specifically to a louver structure for preventing icing. Background Technology

[0002] A closed-circuit cooling tower (also called an evaporative air cooler or a closed cooling tower) places a tubular heat exchanger inside the tower and ensures the cooling effect through heat exchange between the circulating air, spray water and circulating water.

[0003] Closed-circuit cooling towers typically have louvers installed at the air inlet, primarily to prevent spray water from splashing out of the tower and to guide the airflow. Since some of the spray water splashes onto the tower wall during spraying, it drips down the tower wall and onto the louvers at the air inlet.

[0004] The current problems are: In the cold and windy winters of the north, the low ambient temperature causes the spray water to drip down the tower wall and freeze easily on the louvers at the air inlet. This ice buildup eventually seals off the louvers, preventing the cold air outside from circulating and replacing with the air inside, thus hindering the cooling tower's cooling and affecting its normal operation. Secondly, the strong winds cause debris to be blown randomly into the cooling tower through the louvers, causing pollution. Utility Model Content

[0005] The purpose of this invention is to provide a louver structure that prevents icing.

[0006] This utility model is implemented by the following technical solution: A louver structure for preventing icing includes a cooling tower. A louver is installed at the bottom air inlet of the cooling tower. The louver includes a window frame and a plurality of inclined louvers fixed within the window frame. An inclined guide plate is fixed to the inner top of the window frame and located at the top of the louvers. One end of the guide plate extends obliquely downward beyond the outer side of the window frame. The surface of the louvers is coated with an antifreeze coating.

[0007] Preferably, three hooks are fixed to the top inner side of the window frame, and a triangular plate is fixed to the bottom inner side of the window frame. Four threaded holes are opened on the triangular plate. A filter screen is snapped into the window frame. A through hole corresponding to the threaded hole is opened at the bottom of the filter screen. A bolt passes through the through hole and is threadedly connected to the threaded hole. The hooks are hooked into the mesh holes at the top of the filter screen.

[0008] Preferably, the deflector includes a baffle, a strip-shaped arc plate, and two ribs; one end of the baffle is fixed to the top inner side of the window frame, and the other end of the baffle extends out of the outer side of the window frame and is fixedly connected to the strip-shaped arc plate; two ribs are symmetrically fixed on both sides of the baffle and the strip-shaped arc plate, and the two ribs are arranged obliquely downward.

[0009] Preferably, the length of the baffle is equal to the length of the louver.

[0010] Preferably, the cooling tower sidewall is provided with a ramp above the louvers.

[0011] The advantages of this utility model are: simple structure, easy to manufacture, and quick to install. By setting a guide plate on the louvers, the spray water droplets on the tower wall are prevented from falling onto the louvers, thus avoiding the phenomenon of ice formation on the louvers and ensuring the ventilation of the louvers. This allows for normal air exchange between the cold air outside the tower and the air inside the tower, ensuring the normal cooling operation of the cooling tower. At the same time, the filter screen effectively reduces the amount of debris blown into the cooling tower. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of Embodiment 1. Figure 2 ; Figure 3 This is a cross-sectional view of the installation of the 100 louvers and guide vanes in the cooling tower in Example 10; Figure 4 This is a schematic diagram of the overall structure of Embodiment 2. Figure 1 ; Figure 5 This is a partial structural schematic diagram of Embodiment 2; Figure 6 This is a schematic diagram of the filter screen structure; Figure 7 This is a cross-sectional view of the installation of the louvers and guide vanes in the cooling tower according to Embodiment 2; Figure 8 This is a reference diagram of louver installation in a cooling tower.

[0013] In the diagram: 1. Cooling tower, 1.1. Slope, 2. Louver, 2.1. Window frame, 2.2. Louver blade, 3. Guide plate, 3.1. Baffle, 3.2. Strip-shaped arc plate, 3.3. Rib, 4. Triangular plate, 4.1. Threaded hole, 5. Filter screen, 5.1. Through hole. Detailed Implementation

[0014] like Figures 1 to 8 As shown, Example 1 A louver structure for preventing icing includes a cooling tower 1. A louver 2 is installed at the bottom air inlet of the cooling tower 1. The louver 2 includes a frame 2.1 and multiple inclined louvers 2.2 fixed within the frame 2.1. Through-screw holes are provided on the outer perimeter of the frame 2.1 for screws to be inserted and fixed to the tower wall. The louvers can be quickly replaced by removing the screws. An inclined guide plate 3 is fixed to the inner top of the frame 2.1 and located at the top of the louvers 2.2. One end of the guide plate 3 extends downwards beyond the outer side of the frame 2.1. The guide plate 3 guides the spray water flowing along the tower wall to a side away from the louvers 2.2, thus preventing water from contacting the louvers 2 and forming ice.

[0015] The deflector plate 3 structure includes a baffle 3.1, a strip-shaped arc plate 3.2, and two ribs 3.3. One end of the baffle 3.1 is fixed to the top inner side of the window frame 2.1, and the other end of the baffle 3.1 extends out of the outer side of the window frame 2.1 and is fixedly connected to the strip-shaped arc plate 3.2. Two ribs 3.3 are symmetrically fixed on both sides of the baffle 3.1 and the strip-shaped arc plate 3.2, and the two ribs 3.3 are set diagonally downwards. The length of the baffle 3.1 is equal to the length of the louver 2.2. The strip-shaped arc plate 3.2 and the two ribs 3.3 can effectively guide the dripping spray water to both sides of the louver 2, preventing water from contacting the louver 2 and forming ice.

[0016] The surface of the louver 2.2 is coated with an antifreeze coating made of 2S-611 anti-icing and snow coating to prevent the louver 2.2 from freezing.

[0017] A ramp 1.1 is provided on the side wall of cooling tower 1 above the louvers 2 to minimize the spray water on the tower wall.

[0018] Example 2 Compared with Example 1, Example 2 has a similar overall structure. The difference is that three hooks 2.3 are fixed on the inner top of the window frame 2.1, and a triangular plate 4 is fixed on the inner bottom of the window frame 2.1. The triangular plate 4 has four threaded holes 4.1. A filter screen 5 is snapped into the window frame 2.1. The filter screen 5 blocks debris from being blown into the cooling tower 1, reducing the amount of debris blown into the cooling tower 1. The bottom of the filter screen 5 has through holes 5.1 corresponding to the threaded holes 4.1. Bolts pass through the through holes 5.1 and the threaded holes 4.1 and are threaded together, so that the filter screen 5 is fixed on the window frame 2.1. The hooks 2.3 are hooked into the mesh holes at the top of the filter screen 5.

[0019] When installing filter screen 5, first align the mesh on the top of filter screen 5 with hook 2.3 and hook it. After hooking, lower filter screen 5 so that filter screen 5 is snapped into the inside of window frame 2.1. Then, insert bolts and thread them through through hole 5.1 and threaded hole 4.1 to fix filter screen 5 on window frame 2.1.

[0020] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A louver structure for preventing icing, comprising a cooling tower (1), wherein louvers (2) are installed at the bottom air inlet of the cooling tower (1), characterized in that, The louver (2) includes a window frame (2.1) and a plurality of inclined louver blades (2.2) fixed inside the window frame (2.1). An inclined guide plate (3) is fixed on the inner side of the top of the window frame (2.1) and is located on the top of the louver blades (2.2). One end of the guide plate (3) extends obliquely downward out of the outer side of the window frame (2.1). The surface of the louver blades (2.2) is coated with an antifreeze coating.

2. The louver structure for preventing icing according to claim 1, characterized in that, Three hooks (2.3) are fixed to the top inner side of the window frame (2.1), and a triangular plate (4) is fixed to the bottom inner side of the window frame (2.1). Four threaded holes (4.1) are opened on the triangular plate (4). A filter screen (5) is snapped into the window frame (2.1). A through hole (5.1) corresponding to the threaded hole (4.1) is opened at the bottom of the filter screen (5). The bolt passes through the through hole (5.1) and the threaded hole (4.1) and is threadedly connected. The hooks (2.3) are hooked into the mesh holes at the top of the filter screen (5).

3. The louver structure for preventing icing according to claim 1 or 2, characterized in that, The guide plate (3) includes a baffle (3.1), a strip-shaped arc plate (3.2), and two ribs (3.3); one end of the baffle (3.1) is fixed to the top inner side of the window frame (2.1), and the other end of the baffle (3.1) extends out of the outer side of the window frame (2.1) and is fixedly connected to the strip-shaped arc plate (3.2). Two ribs (3.3) are symmetrically fixed on both sides of the baffle (3.1) and the strip-shaped arc plate (3.2), and the two ribs (3.3) are set obliquely downward.

4. The louver structure for preventing icing according to claim 3, characterized in that, The length of the baffle (3.1) is equal to the length of the louver (2.2).

5. The louver structure for preventing icing according to claim 4, characterized in that, The cooling tower (1) has a ramp (1.1) on its side wall above the louvers (2).

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