Unilateral air inlet cooling tower with air guide device

Abstract

The utility model discloses a unilateral air inlet cooling tower with an air guide device, which comprises a tower body, a water distribution system and a filler, the water distribution system and the filler are arranged in the tower body, the water distribution system is positioned above the filler, one side wall of the tower body is provided with an air inlet, the air inlet is positioned below the filler, the top of the tower body is provided with an air duct, and the air duct is provided with an induced draft fan. The air guiding device comprises an air inducing structure, an air guiding pipe and a distribution structure, the air inducing structure and the distribution structure are arranged at the two opposite ends of the air guiding pipe respectively, the air guiding pipe is located above the air inlet and inserted into the tower body, the air inducing structure is arranged close to the air inlet, and the distribution structure is arranged close to one side wall, opposite to the air inlet, of the tower body; the air inducing structure is provided with an air inducing opening, the distribution structure is provided with an air outlet, and the air inducing opening is communicated with the air outlet through an air guiding pipe. According to the cooling tower disclosed by the utility model, air outside the tower is introduced into one side, opposite to the air inlet, in the tower by arranging the air guide device, so that the utilization rate of the filler is improved, and the heat exchange efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a single-side air inlet cooling tower with an air guide device. Background Art

[0002] A cooling tower is a cooling device that uses heat exchange between water and air to dissipate waste heat from industrial circulating water. When working, the circulating water is sprayed on the packing in the tower through the spray system. The dry and cold air outside the tower enters the tower through the air inlet at the bottom of the tower side wall under the action of the induced draft fan and flows upward, and then contacts the circulating water that passes through the packing downward. After the heat exchange between the two occurs, the temperature of the circulating water is reduced.

[0003] At present, many domestic mechanical ventilation cooling tower projects are limited by the size of the installation area, and it is impossible to build a double-sided air inlet tower group according to the original plan. The only way to change the layout of the tower group is to adopt a single-sided air inlet method so that multiple cooling towers are arranged back to back. The single-sided air inlet method can indeed improve the problem of the double-sided air inlet tower group occupying a large area, but there is a big problem with the single-sided air inlet cooling tower. The filler closer to the air inlet can fully contact the rising cold air, thereby exchanging heat with the circulating water, while the filler on the side farther from the air inlet cannot fully contact the cold air, thereby reducing the utilization rate of the filler and the heat exchange efficiency. Based on this, it is necessary for the inventor to improve the structure of the cooling tower with single-sided air inlet to improve the heat exchange efficiency of the filler. Utility Model Content

[0004] The technical problem to be solved by the utility model is that in the prior art, a cooling tower with a single-side air inlet cannot fully and effectively utilize fillers. Based on this, the utility model provides a cooling tower with a single-side air inlet and an air guide device, which can improve filler utilization and heat exchange efficiency.

[0005] The utility model adopts the following technical scheme to solve its technical problems: a single-side air inlet cooling tower with an air guiding device, comprising a tower body and a water distribution system and filler arranged in the tower body, the water distribution system is located above the filler, an air inlet is opened on one side wall of the tower body, the air inlet is located below the filler, a wind tube is provided on the top of the tower body, an induced draft fan is installed on the wind tube, and also comprises an air guiding device, the air guiding device comprises an air guiding structure, an air guiding pipe and a distribution structure, the air guiding structure and the distribution structure are respectively arranged at opposite ends of the air guiding pipe, the air guiding pipe is located above the air inlet and inserted in the tower body, the air guiding structure is arranged close to the air inlet, the distribution structure is close to a side wall of the tower body opposite to the air inlet, the air guiding structure is provided with an air guiding port, the distribution structure is provided with an air outlet, and the air guiding port is communicated with the air outlet through the air guiding pipe.

[0006] Further, the air guiding structure is a flared structure in the shape of a trumpet, the flare faces outward, and the air guiding opening is formed by the inner cavity of the flared structure.

[0007] Further, the air guiding structure is a long groove-shaped structure with an opening on one side. The edge of the long groove-shaped structure is smoothly transitioned and folded outward. There are multiple air guiding pipes, and they are parallel to each other. The air guiding pipes are arranged side by side on the bottom wall of the long groove-shaped structure.

[0008] Further, each air guiding pipe is composed of a plurality of air guiding sub-pipes butt-jointed. Adjacent two air guiding sub-pipes are butt-jointed through a connecting sleeve.

[0009] Further, the cross-section of the air guiding pipe is a rhombus structure. The length of one diagonal of the rhombus structure is greater than that of the other diagonal, and the longer diagonal is arranged vertically.

[0010] Further, the distribution structure includes a fixed frame and a first guide plate and a second guide plate fixed on the inner wall of the fixed frame. The fixed frame is a cuboid frame structure with both upper and lower ends penetrating, and the air outlet is formed by the upper opening of the fixed frame.

[0011] Further, a through hole is provided on one side of the fixed frame close to the air guiding pipe. The through hole is in butt-joint connection with the light opening of the air guiding pipe. Both the first guide plate and the second guide plate are in the shape of vertical plates. Two of the first guide plates are in a group, and the two first guide plates in the same group are arranged in a V-shaped structure, and the tip of the V-shaped structure is close to the through hole. There is a gap between the two first guide plates in the same group.

[0012] Further, there are multiple second guide plates, which are sequentially and fixedly connected to the inner wall of the fixed frame away from the first guide plate. A separation channel is formed between every two adjacent second guide plates.

[0013] Further, the air guiding device is made of fiberglass material.

[0014] The beneficial effects of the present utility model are as follows: For the single-side air intake cooling tower with an air guiding device of the present utility model, by adding an air guiding device, the cold air outside the tower enters the air guiding pipe through the air guiding opening of the air guiding structure, and then flows out through the air outlet after passing through the air guiding pipe, achieving the purpose of double-side air intake, ensuring that the side of the packing far from the air inlet can also act with the cold air outside the tower, improving the utilization rate of the packing, and ensuring the heat exchange efficiency of the packing. Description of the Drawings

[0015] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0016] Figure 1It is a schematic structural diagram of a single - side air - inlet cooling tower with a wind - guiding device of the present utility model;

[0017] Figure 2 is Figure 1 The top - view of the wind - guiding device in the single - side air - inlet cooling tower with a wind - guiding device shown in the figure;

[0018] Figure 3 is Figure 2 The cross - sectional view of the air - guiding pipe in the wind - guiding device shown in the figure;

[0019] Figure 4 is Figure 2 The partial enlarged view of the A position in the wind - guiding device shown in the figure.

[0020] In the figure: 1. Tower body, 11. Air - inlet, 2. Water - distribution system, 21. Spray pipe, 22. Nozzle, 3. Packing, 4. Chimney, 5. Induced - draft fan, 6. Water eliminator, 7. Wind - guiding device, 71. Air - guiding structure, 711. Air - inlet, 72. Air - guiding pipe, 73. Distribution structure, 730. Air - outlet, 731. Fixed frame, 7311. Through - hole, 732. First guide plate, 7321. Gap, 733. Second guide plate. Specific embodiments

[0021] Now, the present utility model will be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present utility model in a schematic way, so it only shows the components related to the present utility model.

[0022] Please refer to Figures 1-4 , the present utility model provides a single - side air - inlet cooling tower with a wind - guiding device, including a tower body 1 and a water - distribution system 2 and a packing 3 installed inside the tower body 1. The water - distribution system 2 is located above the packing 3. An air - inlet 11 is opened on one side wall of the tower body 1, and the air - inlet 11 is located below the packing 3. The center of the top of the tower body 1 is connected with a chimney 4, and an induced - draft fan 5 is installed on the chimney 4.

[0023] In the single - side air - inlet cooling tower with a wind - guiding device of the present utility model, during operation, the induced - draft fan 5 is started. Under the action of the induced - draft fan 5, external dry cold air enters the inside of the tower body 1 through the air - inlet 11 and moves upward. The circulating water to be cooled is sprayed onto the packing 3 inside the tower body 1 via the water - distribution system 2. When the circulating water passes downward through the packing 3, it contacts the rising dry cold air, and heat exchange occurs between the two, so that the heat in the circulating water is carried out by the rising air flow and then discharged through the upper chimney 4, while the heat - exchanged circulating water falls into the reservoir at the bottom of the tower body 1.

[0024] The water - distribution system 2 includes spray pipes 21 and nozzles 22. There are multiple spray pipes 21 and they are parallel to each other. The multiple spray pipes 21 are horizontally arranged and laid flat above the packing 3, and multiple nozzles 22 are installed on each spray pipe 21.

[0025] To intercept the water vapor in the upward airflow after heat exchange, the single-side air inlet cooling tower with a wind guiding device of the present utility model further includes a water collector 6. The water collector 6 is horizontally arranged above the water distribution system 2, and the water collector 6 is used to intercept and recover the water vapor in the upward airflow.

[0026] Please refer to again Figures 2-4 , the single-side air inlet cooling tower with a wind guiding device of the present utility model further includes a wind guiding device 7. The wind guiding device 7 includes an air guiding structure 71, an air guiding pipe 72, and a distribution structure 73. The air guiding structure 71 and the distribution structure 73 are respectively arranged at opposite ends of the air guiding pipe 72. The air guiding pipe 72 is located above the air inlet 11 and is inserted into the tower body 1. The air guiding structure 71 is arranged close to the air inlet 11, and the distribution structure 73 is close to a side wall of the tower body 1 opposite to the air inlet 11. An air inlet 711 is provided on the air guiding structure 71, and an air outlet 730 is provided on the distribution structure 73. The air inlet 711 is communicated with the air outlet 730 through the air guiding pipe 72. During operation, the cold air outside the tower body 1 enters the air guiding pipe 72 through the air inlet 711, then passes through the air guiding pipe 72 and enters the distribution structure 73, and flows out from the air outlet 730. Under the action of the induced draft fan 5, it flows upward obliquely and then passes through the packing 3, and then exchanges heat with the circulating water. In this way, the cold air outside the tower is introduced from one side of the tower body 1 to the other side of the tower body 1 under the action of the wind guiding device 7, achieving the purpose of double-side air inlet, increasing the effective area of the packing 3, and having high heat exchange efficiency.

[0027] The air guiding structure 71 is generally in the shape of a flared structure with the flare facing outward. The air inlet 711 is formed by the inner cavity of the flared structure. In a specific embodiment, a fan can be installed at the flare. During use, the cold air outside the tower is forcibly sent into the air guiding structure 71 through the fan, and the air volume entering the tower can be adjusted by controlling the rotation speed of the fan. As a preferred embodiment, the air guiding structure 71 is in the shape of a long groove structure with one side open. The edge of the long groove structure is smoothly transitioned and folded outward, so that the long groove structure presents a flared structure. There are multiple air guiding pipes 72 and they are parallel to each other. The air guiding pipes 72 are arranged side by side on the bottom wall of the long groove structure. In this embodiment, connecting multiple air guiding pipes 72 to the same air guiding structure 71 is convenient for production and assembly. It can be understood that in other embodiments, the air guiding structure 71 can also be provided in multiple numbers. At this time, one air guiding pipe 72 is connected to one air guiding structure 71, and the multi-channel air guiding function can also be realized.

[0028] The air duct 72 has a hollow tubular structure with both ends penetrating. As a preferred embodiment, each air duct 72 is composed of a plurality of air guiding sub - ducts butt - jointed, and the adjacent two air guiding sub - ducts can be butt - jointed through a connecting sleeve. Setting the air duct 72 as a multi - section split structure facilitates users to adjust the length of the air duct 72 according to the actual width of the tower body 1.

[0029] In addition, the cross - section of the air duct 72 is in a rhombus structure. The length of one diagonal of the rhombus structure is greater than that of the other diagonal, and the longer diagonal is arranged vertically. During the actual working process, due to the action of the induced draft fan 5, the cold air entering the air duct 72 is actually in an inclined upward path during the flow process in the air duct 72. Therefore, setting the air duct 72 with a rhombus - shaped cross - section in a higher state can reduce wind resistance and is conducive to the smooth passage of cold air through the air duct 72.

[0030] The distribution structure 73 includes a fixed frame 731 and a first guide plate 732 and a second guide plate 733 fixed on the inner wall of the fixed frame 731. The fixed frame 731 has a cuboid frame structure with both upper and lower ends penetrating, and the air outlet 730 is formed by the upper - end opening of the fixed frame 731. Specifically, during implementation, the fixed frame 731 can be fixedly installed on the support beam inside the tower body 1 through fasteners such as bolts. A through - hole 7311 is opened on one side of the fixed frame 731 close to the air duct 72, and the through - hole 7311 is in alignment connection with the pipe orifice of the air duct 72. Both the first guide plate 732 and the second guide plate 733 are in a vertical plate - like structure. Two first guide plates 732 form a group, and the two first guide plates 732 in the same group are arranged in a substantially V - shaped structure. The tip of the V - shaped structure formed by the two guide plates 732 in the same group is close to the through - hole 7311, and there is a gap 7321 between the two first guide plates 732 in the same group. Thus, when the cold air passes through the air duct 72 and flows out from the pipe orifice of the air duct 72 far from the air - guiding structure 71, the cold air will be divided into three flow paths under the action of the two first guide plates 732 in the same group. One passes through the gap 7321 and then enters between the two first guide plates 732 in the same group, and the other two flow past the outside of the two first guide plates 732 in the same group, realizing the diversion of the cold air, and then evenly distributing the cold air transported into the air duct 72 below the packing 3.

[0031] There are multiple second guide plates 733 which are fixedly connected in sequence on the inner wall of the fixed frame 731 far from the first guide plate 732. A partition channel (not shown in the figure) is formed between every two adjacent second guide plates 733. During operation, the cold air diverted under the action of the first guide plate 732 enters each of the partition channels, playing a role in rectifying the cold air and facilitating the stable flow of the air current.

[0032] In addition, the air guiding device 7 is made of fiberglass material, which is a lightweight and high-strength material. While ensuring lightweight production, it also guarantees the structural strength of the air guiding device 7.

[0033] For the single-sided air intake cooling tower with an air guiding device of the present utility model, by adding the air guiding device 7, the cold air outside the tower enters the air guiding pipe 72 through the air intake 711 of the air guiding structure 71, and then flows out through the air outlet 730 after passing through the air guiding pipe 72, achieving the purpose of double-sided air intake, ensuring that the side of the packing 3 farther from the air inlet 11 can also interact with the cold air outside the tower, improving the utilization rate of the packing 3, and ensuring the heat exchange efficiency of the packing 3.

[0034] Inspired by the ideal embodiments of the present utility model described above, through the above description, relevant staff can make various changes and modifications without departing from the scope of the present utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A single-side air inlet cooling tower with an air guide device, comprising a tower body and a water distribution system and filler arranged in the tower body, wherein the water distribution system is located above the filler, an air inlet is opened on one side wall of the tower body, and the air inlet is located below the filler, a wind tube is arranged on the top of the tower body, and an induced draft fan is installed on the wind tube, characterized in that: It also includes an air guiding device, which includes an air induction structure, an air guiding duct and a distribution structure. The air induction structure and the distribution structure are respectively arranged at two opposite ends of the air guiding duct. The air guiding duct is located above the air inlet and inserted in the tower body. The air induction structure is arranged close to the air inlet, and the distribution structure is close to a side wall of the tower body opposite to the air inlet. The air induction structure is provided with an air inlet, and the distribution structure is provided with an air outlet. The air induction port is connected with the air outlet through the air guiding duct.

2. The single-side air inlet cooling tower with an air guide device according to claim 1, characterized in that: The air induction structure is a trumpet-shaped expansion structure, the expansion faces outward, and the air induction port is formed by the inner cavity of the expansion structure.

3. The single-side air inlet cooling tower with an air guide device according to claim 2, characterized in that: The air induction structure is a long slot-shaped structure with one side open, the edge of the long slot-shaped structure smoothly transitions and folds outwards, there are multiple air guide pipes, which are parallel to each other and arranged in parallel on the bottom wall of the long slot-shaped structure.

4. The single-side air inlet cooling tower with an air guide device according to claim 1, characterized in that: Each of the air guide pipes is formed by connecting a plurality of air guide branch pipes, and two adjacent air guide branch pipes are connected to each other via a connecting sleeve.

5. The single-side air inlet cooling tower with an air guide device according to claim 4, characterized in that: The cross section of the air guide duct is a diamond-shaped structure, wherein the length of one diagonal line of the diamond-shaped structure is greater than the length of the other diagonal line, and the longer diagonal line is vertically arranged.

6. The single-side air inlet cooling tower with an air guide device according to claim 1, characterized in that: The distribution structure includes a fixed frame and a first guide plate and a second guide plate fixed on the inner wall of the fixed frame. The fixed frame is a rectangular frame structure with upper and lower ends penetrating therethrough. The air outlet is formed by an upper opening of the fixed frame.

7. The single-side air inlet cooling tower with an air guide device according to claim 6, characterized in that: A through hole is provided on one side of the fixed frame close to the air duct, and the through hole is aligned and connected to the optical port of the air duct. The first guide plate and the second guide plate are both vertical plate-like structures. Two first guide plates form a group, and the two first guide plates in the same group are arranged in a V-shaped structure, and the tip of the V-shaped structure is arranged close to the through hole, and there is a gap between the two first guide plates in the same group.

8. The single-side air inlet cooling tower with an air guide device according to claim 7, characterized in that: The second guide plates are multiple and are sequentially fixedly connected to the inner wall of the fixing frame away from the first guide plates, and a separation channel is formed between every two adjacent second guide plates.

9. The single-side air inlet cooling tower with an air guide device according to any one of claims 1 to 8, characterized in that: The air guide device is made of glass fiber reinforced plastic material.

Images