A closed cooling tower

Abstract

The utility model relates to closed cooling tower technical field, concretely relates to a closed cooling tower, including cooling tower body, heat exchange plate and filler, the heat exchange coil pipe is equipped with in the cooling tower body inner chamber, the top surface and the bottom surface of heat exchange coil pipe are spaced apart and are welded with a plurality of heat exchange plates, the filler sets up between each layer water pipe of heat exchange coil pipe, the utility model discloses spaced apart and are welded with a plurality of heat exchange plates on the top surface and the bottom surface of heat exchange coil pipe, utilize heat exchange plate to increase the formation area of water film, namely increased the effective area of evaporative heat dissipation, to the circulating water cooling effect of flowing in heat exchange coil pipe is thus promoted, simultaneously adds the filler between each layer water pipe of heat exchange coil pipe, utilizes the filler to scatter, spreads out, forms extremely thin water film or breaks into a large number of small water drop with big granule water drop or water flow, maximizes the contact area and contact time between water and air, thereby efficiently carries out heat exchange.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, and in particular to a closed cooling tower. Background Technology

[0002] A cooling tower is a cooling device that uses water as a circulating coolant to absorb heat from the system and discharge it into the atmosphere. Its core principle is to exchange heat through contact between water and flowing air, using the resulting steam to carry away heat (evaporative cooling), combined with convective and radiative heat transfer, to dissipate waste heat generated by industrial processes or refrigeration and air conditioning, thereby lowering the water temperature and ensuring normal system operation. Currently, closed-circuit cooling towers, such as those disclosed in announcement number CN100501291C, use fans to draw outside air into the tower. However, this method can affect cooling efficiency in summer due to high ambient wet-bulb temperatures. Therefore, in industrial applications, increasing fan power to increase airflow is often adopted, but this method generates significant noise. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a closed cooling tower that improves the cooling effect without changing the original structure of the cooling tower as much as possible.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a closed cooling tower, comprising a cooling tower body, heat exchange plates and packing; the cooling tower body is provided with a heat exchange coil in its inner cavity, and multiple heat exchange plates are welded at intervals on the top and bottom surfaces of the heat exchange coil; the packing is disposed between the layers of water pipes of the heat exchange coil.

[0005] Furthermore, multiple raised strips are welded at intervals on the surface of the heat exchange plate, and the thickness of the raised strips is 1mm to 3mm.

[0006] Furthermore, the heat exchange plate is provided with raised strips at intervals of a first spacing along its own width direction.

[0007] Furthermore, the first spacing is 5mm to 10mm.

[0008] Furthermore, the heat exchange plate is provided with raised strips at intervals of a second spacing along its own length direction.

[0009] Furthermore, the second spacing is 10mm to 15mm.

[0010] Furthermore, the thickness of the heat exchange plate is 1 mm to 6 mm.

[0011] Furthermore, a water guide is provided along its own outline on the bottom side wall of the cooling tower body, which is used to guide water into the water collection tank at the bottom of the cooling tower body.

[0012] Furthermore, the water guide is arranged in a funnel shape at the bottom of the side wall of the cooling tower body.

[0013] Furthermore, the sidewalls of the cooling tower body are configured as grid walls.

[0014] The beneficial effects of this invention are as follows: Multiple heat exchange plates are welded at intervals to the top and bottom surfaces of the heat exchange coil. These plates increase the area for water film formation, thereby increasing the effective area for evaporative heat dissipation and improving the cooling effect on the circulating water flowing in the heat exchange coil. Simultaneously, packing material is added between the layers of water pipes in the heat exchange coil. This packing material disperses and spreads large water droplets or water flows, forming an extremely thin water film or breaking them into numerous tiny droplets. This maximizes the contact area and contact time between water and air, thus achieving efficient heat exchange. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a closed cooling tower proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a closed cooling tower proposed in this utility model;

[0017] Figure 3 This utility model provides a schematic diagram of the structure of a heat exchange plate in a closed-loop cooling tower. Figure 1 ;

[0018] Figure 4 This utility model provides a schematic diagram of the structure of a heat exchange plate in a closed-loop cooling tower. Figure 2 ;

[0019] Label Explanation:

[0020] 1. Cooling tower body; 11. Heat exchange coil; 12. Water guide rail;

[0021] 2. Heat exchange plate; 21. Raised bar;

[0022] 3. Packing material. Detailed Implementation

[0023] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0024] Please refer to Figure 1 and Figure 2 As shown, this utility model discloses a closed cooling tower, including a cooling tower body 1, heat exchange plates 2 and packing 3; the cooling tower body 1 is provided with a heat exchange coil 11 in the inner cavity, and multiple heat exchange plates 2 are welded at intervals on the top and bottom surfaces of the heat exchange coil 11; the packing 3 is disposed between the layers of water pipes of the heat exchange coil 11.

[0025] Working principle: Multiple heat exchange plates 2 are welded at intervals on the top and bottom surfaces of the heat exchange coil 11. The heat exchange plates 2 increase the area for water film formation, thereby increasing the effective area for evaporative heat dissipation and improving the cooling effect of the circulating water flowing in the heat exchange coil 11. At the same time, packing material 3 is added between the layers of water pipes in the heat exchange coil 11. The packing material 3 disperses and spreads large water droplets or water flow, forming an extremely thin water film or breaking it into a large number of fine water droplets, maximizing the contact area and contact time between water and air, thereby achieving efficient heat exchange.

[0026] It is worth noting that the packing 3 is usually made of corrugated plates, mesh, grids, or specially shaped plastic sheets (usually PVC, PP, CPVC, etc.). The heat exchange plate 2 is made of metal materials with good thermal conductivity, such as aluminum and copper.

[0027] The thickness of the heat exchange plate 2 is 1 mm to 6 mm. By limiting the thickness of the heat exchange plate 2, the strength of the heat exchange plate 2 on the heat exchange coil 11 is ensured.

[0028] In some implementations, please refer to Figure 3 or Figure 4 As shown, multiple raised strips 21 are welded at intervals on the surface of the heat exchange plate 2, and the thickness of the raised strips 21 is 1mm to 3mm. The raised strips 21 are used to further increase the area of ​​water film formation.

[0029] In some implementations, please refer to Figure 3 As shown, the heat exchange plate 2 is provided with protrusions 21 spaced at a first interval along its width direction, the first interval being A, where A is 5mm to 10mm. By limiting the spacing between adjacent protrusions 21, welding of the protrusions 21 on the heat exchange plate 2 is facilitated.

[0030] In some implementations, please refer to Figure 4 As shown, the heat exchange plate 2 is provided with protrusions 21 spaced at a second interval along its length. The second interval is B, which is 10mm to 15mm. By limiting the spacing between adjacent protrusions 21, welding of the protrusions 21 on the heat exchange plate 2 is facilitated.

[0031] In some implementations, please refer to Figure 1As shown, a water guide 12 is provided along its own contour on the bottom side wall of the cooling tower body 1. The water guide 12 is used to guide water into the water collection tank at the bottom of the cooling tower body 1. Preferably, the water guide 12 is funnel-shaped and provided at the bottom side wall of the cooling tower body 1. When water vapor generated by the operation of the cooling tower body 1 floats into the outside air and recondenses into water droplets, the water guide 12 can be used to collect it back into the water collection tank as much as possible. Then, the pump pumps the water in the water collection tank into the spray pipes of the cooling tower body 1 to continue cooling the heat exchange coils 11. During the water replenishment process, the operator can use the water guide 12 to replenish water into the water collection tank, thus eliminating the need to insert a water pipe into the cooling tower body 1 to replenish the water collection tank.

[0032] In some implementations, conventional closed-circuit cooling towers, such as those shown in CN118960431B, have an air inlet at the bottom of the cooling tower, allowing air to pass through the heat exchange coil 11 from bottom to top. To address this, the sidewalls of the cooling tower body 1 are configured as grid walls, enabling air to enter the heat exchange coil 11 not only from the bottom but also from the side, thereby improving the contact effect between the flowing air and the water film.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A closed-loop cooling tower, characterized in that: It includes a cooling tower body, heat exchange plates, and packing; the cooling tower body has a heat exchange coil inside its cavity, and multiple heat exchange plates are welded at intervals on the top and bottom surfaces of the heat exchange coil; the packing is disposed between the water pipes of each layer of the heat exchange coil.

2. The closed-loop cooling tower according to claim 1, characterized in that: The heat exchange plate has multiple raised strips welded at intervals on its surface, and the thickness of the raised strips is 1mm to 3mm.

3. The closed-loop cooling tower according to claim 2, characterized in that: The heat exchange plate is provided with raised strips at intervals of a first spacing along its own width direction.

4. The closed-loop cooling tower according to claim 3, characterized in that: The first spacing is 5mm to 10mm.

5. The closed-loop cooling tower according to claim 2, characterized in that: The heat exchange plate is provided with raised strips at intervals of a second spacing along its own length.

6. The closed-loop cooling tower according to claim 5, characterized in that: The second spacing is 10mm to 15mm.

7. The closed-loop cooling tower according to claim 1, characterized in that: The thickness of the heat exchange plate is 1 mm to 6 mm.

8. The closed-loop cooling tower according to claim 1, characterized in that: A water guide is provided along its own outline on the bottom side wall of the cooling tower body, which is used to guide water into the water collection tank at the bottom of the cooling tower body.

9. The closed-loop cooling tower according to claim 8, characterized in that: The water guide is arranged in a funnel shape at the bottom of the side wall of the cooling tower body.

10. The closed-loop cooling tower according to claim 1, characterized in that: The side walls of the cooling tower body are configured as grid walls.

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