Efficient heat exchange combined filler for cooling tower

Abstract

An efficient heat exchange combined filler for a cooling tower relates to the technical field of cooling tower appliances and comprises a tower body, a middle filler is arranged in the tower body, intervals are arranged between the two ends of the middle filler and the tower wall, the upper end of the middle filler is fixedly connected with an upper guide plate which is arranged in an upward diverging manner, and the lower end of the middle filler is fixedly connected with a lower guide plate which is arranged in a downward diverging manner. A flow guide cavity is formed in an area among the side wall of the middle-layer filler, the upper flow guide plate, the lower flow guide plate and the inner wall of the tower body, and an upper air inlet communicated with the flow guide cavity is formed in the tower wall. The utility model solves the problems that a heat exchanger in the prior art generally adopts a multi-layer packing structure to increase the contact area of spray water in packing and prolong the residence time of the spray water in the packing so as to improve the heat exchange efficiency of a cooling tower, but the defects that the air inlet resistance is increased, the heat exchange efficiency is reduced, and the heat exchange efficiency is influenced are caused. The heat exchange area of the filler cannot be fully utilized, and the cooling effect is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling tower appliances, in particular to a high-efficiency heat-exchange composite filler for a cooling tower. Background Art

[0002] In various industrial production processes, heat transfer is often required through heat exchangers to meet process requirements. Heat exchangers are devices that transfer heat between two or more fluids at different temperatures and are widely used in industries such as petroleum, chemical engineering, electric power, metallurgy, machinery, food, and pharmaceuticals. The packing structure is a crucial component of a heat exchanger, and its performance directly impacts its heat transfer efficiency. Therefore, optimizing packing structure design and improving heat transfer efficiency are currently key research areas in heat exchanger technology.

[0003] The prior art discloses a patent with publication number CN206695674U. This solution includes a packing area and a water collector area. The water collector area and the packing area are integrally formed. The water collector area includes an inlet water collector and an outlet water collector. The inlet water collector is arranged at the air inlet of the packing area, and the outlet water collector is arranged at the air outlet of the packing area. The packing area is provided with a plurality of hexagonal pyramidal protrusions, which are arranged in a honeycomb pattern. The above technical solution adopts the design of hexagonal pyramidal protrusions, which increases the contact area between water and air. At the same time, the hexagonal pyramidal protrusions are arranged in a honeycomb pattern, which reduces the ineffective area. In addition, a hexagonal support platform is provided at the center of the hexagonal pyramidal protrusion, making the packing structure stable, not easily deformed when two adjacent cooling tower packing structures are connected, and extending the service life.

[0004] As the existing devices are used, the shortcomings of this technology are gradually exposed, mainly in the following aspects:

[0005] In existing heat exchanger technology, a multi-layer packing structure is usually adopted. The purpose is to increase the contact area of ​​the spray water in the packing and extend the residence time of the spray water in the packing, so as to improve the heat exchange efficiency of the cooling tower. However, the disadvantage of doing so is that it will cause the air inlet resistance to increase, the heat exchange efficiency to decrease, and the heat exchange area of ​​the packing to be unable to be fully utilized, affecting the cooling effect.

[0006] As can be seen from the above, the existing technology obviously has inconveniences and defects in actual use, so it is necessary to improve it. Utility Model Content

[0007] In response to the defects in the existing technology, the utility model provides a high-efficiency heat exchange composite filler for cooling towers to solve the problem that the heat exchanger in traditional technology usually adopts a multi-layer filler structure, the purpose of which is to increase the contact area of ​​the spray water in the filler and extend the residence time of the spray water in the filler, thereby improving the heat exchange efficiency of the cooling tower. However, the disadvantage of doing so is that it will lead to increased air inlet resistance, reduced heat exchange efficiency, and inability to fully utilize the heat exchange area of ​​the filler, affecting the cooling effect.

[0008] In order to achieve the above-mentioned purpose, the present utility model provides the following technical solutions.

[0009] A high-efficiency heat exchange composite packing for a cooling tower includes a tower body, wherein a middle layer of packing is provided in the tower body, and a gap is provided between the two ends of the middle layer of packing and the tower wall. The upper end of the middle layer of packing is fixedly connected to an upper guide plate arranged in a gradually expanding manner upward, and the lower end of the middle layer of packing is fixedly connected to a lower guide plate arranged in a gradually expanding manner downward, and a guide cavity is formed by the side wall of the middle layer of packing, the upper guide plate, the lower guide plate and the area between the inner wall of the tower body, and an upper air inlet connected to the guide cavity is provided on the tower wall.

[0010] As an optimized solution, the upper end of the middle filler is connected to the upper filler, and the upper filler is located in the area enclosed by the upper guide plate.

[0011] As an optimized solution, the lower end of the middle layer filler is connected to the lower layer filler, and the lower layer filler is located in the area enclosed by the lower guide plate.

[0012] As an optimized solution, the upper layer filler and the lower layer filler include one of an oblique wave filler, an S-wave filler and a V-shaped filler.

[0013] As an optimized solution, the middle layer filler is a grid-shaped filler.

[0014] As an optimized solution, a lower air inlet is provided on the side wall of the tower body below the lower guide plate.

[0015] As an optimized solution, the upper air inlet is a shutter structure or a hole structure.

[0016] As an optimized solution, the angle between the upper guide plate and the horizontal plane is 45°-75°.

[0017] As an optimized solution, the angle between the lower guide plate and the horizontal plane is 45°-75°.

[0018] As an optimized solution, the length of the middle filler is shorter than that of the upper filler and the lower filler, and the distances between the side walls of the middle filler and the inner wall of the tower body are the same.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The dry cold air enters the guide cavity through the upper air inlet, passes through the middle layer of filler, and contacts and exchanges heat with the spray water passing through the middle layer of filler, and then enters the upper layer of filler, and contacts and exchanges heat with the spray water passing through the upper layer of filler;

[0021] The middle packing adopts grid packing, and the dry cold air is introduced into the guide cavity between the packing and the tower wall. The dry cold air passes through the middle packing and the upper packing, which reduces the outlet temperature of the spray water to the lower packing and improves the heat exchange effect.

[0022] An upper air inlet is opened on the tower wall to increase the amount of dry and cold air entering the tower and improve the heat exchange effect of the entire tower;

[0023] The upper guide plate and the lower guide plate are used to separate the spray water from the guide cavity to prevent the spray water from splashing onto the tower wall and freezing in winter. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0025] Figure 1 It is a structural diagram of the present utility model.

[0026] In the figure: 1-upper filler, 2-upper water guide plate, 3-middle filler, 4-lower water guide plate, 5-lower filler, 6-guide cavity, 7-upper air inlet, 8-lower air inlet, 9-tower body. DETAILED DESCRIPTION

[0027] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0028] like Figure 1 As shown, the cooling tower uses a high-efficiency heat exchange composite filler, including a tower body 9, in which a middle layer filler 3 is provided. There is a gap between the two ends of the middle layer filler 3 and the tower wall. The upper end of the middle layer filler 3 is fixedly connected to an upper guide plate 2 which is gradually expanded upward, and the lower end of the middle layer filler 3 is fixedly connected to a lower guide plate 4 which is gradually expanded downward. A guide cavity 6 is formed by the side wall of the middle layer filler 3, the upper guide plate 2, the lower guide plate 4 and the inner wall of the tower body 9, and an upper air inlet 7 connected to the guide cavity 6 is opened on the tower wall.

[0029] The upper end of the middle filler 3 is connected to the upper filler 1 , and the upper filler 1 is located in the area enclosed by the upper guide plate 2 .

[0030] The lower end of the middle filler 3 is connected to the lower filler 5 , and the lower filler 5 is located in the area surrounded by the lower guide plate 4 .

[0031] The upper filler 1 and the lower filler 5 include one of an oblique wave filler, an S-wave filler and a V-shaped filler.

[0032] The middle layer filler 3 is a grid-like filler.

[0033] A lower air inlet 8 is provided on the side wall of the tower body 9 below the lower guide plate 4 .

[0034] The upper air inlet 7 is a shutter structure or a hole structure.

[0035] The angle between the upper guide plate 2 and the horizontal plane is 45°-75°.

[0036] The angle between the lower guide plate 4 and the horizontal plane is 45°-75°.

[0037] The length of the middle filler 3 is shorter than that of the upper filler 1 and the lower filler 5 , and the distance between the side wall of the middle filler 3 and the inner wall of the tower body 9 is the same.

[0038] The three layers of packing are in an "I" shape, and the upper packing 1 and the lower packing 5 occupy the same width in the tower.

[0039] The working principle of this device is:

[0040] The dry cold air enters the guide cavity 6 through the upper air inlet 7, passes through the middle filler 3, contacts and exchanges heat with the spray water passing through the middle filler 3, and then enters the upper filler 1, contacts and exchanges heat with the spray water passing through the upper filler 1;

[0041] The middle packing 3 adopts a grid-like packing, and the dry cold air is introduced into the guide cavity 6 between the packing and the tower wall. The dry cold air passes through the middle packing 3 and the upper packing 1, which reduces the outlet temperature of the spray water to the lower packing 5 and improves the heat exchange effect.

[0042] An upper air inlet 7 is opened on the tower wall to increase the amount of dry cold air entering the tower and improve the heat exchange effect of the entire tower;

[0043] The upper guide plate 2 and the lower guide plate 4 are used to separate the spray water from the guide cavity 6 to prevent the spray water from splashing onto the tower wall and forming ice in winter.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. High-efficiency heat exchange composite filler for cooling tower, characterized by: The tower body (9) comprises a middle-layer filler (3) provided therein, with gaps provided between the two ends of the middle-layer filler (3) and the tower wall, an upper end portion of the middle-layer filler (3) being fixedly connected to an upper guide plate (2) arranged in an upwardly gradually expanding manner, and a lower end portion of the middle-layer filler (3) being fixedly connected to a lower guide plate (4) arranged in a downwardly gradually expanding manner, and a guide cavity (6) being formed by the area between the side wall of the middle-layer filler (3), the upper guide plate (2), the lower guide plate (4) and the inner wall of the tower body (9), and an upper air inlet (7) communicating with the guide cavity (6) being provided on the tower wall.

2. The high-efficiency heat exchange composite filler for cooling tower according to claim 1, characterized in that: The upper end of the middle filler (3) is connected to the upper filler (1), and the upper filler (1) is located in the area enclosed by the upper guide plate (2).

3. The high-efficiency heat exchange composite filler for cooling tower according to claim 2, characterized in that: The lower end of the middle layer filler (3) is connected to the lower layer filler (5), and the lower layer filler (5) is located in the area enclosed by the lower guide plate (4).

4. The high-efficiency heat exchange composite filler for cooling tower according to claim 3, characterized in that: The upper layer filler (1) and the lower layer filler (5) include one of an oblique wave filler, an S-wave filler and a V-shaped filler.

5. The high-efficiency heat exchange composite filler for cooling tower according to claim 1, characterized in that: The middle layer filler (3) is a grid-shaped filler.

6. The high-efficiency heat exchange composite filler for cooling tower according to claim 1, characterized in that: A lower air inlet (8) is provided on the side wall of the tower body (9) below the lower guide plate (4).

7. The high-efficiency heat exchange composite filler for cooling tower according to claim 1, characterized in that: The upper air inlet (7) is a shutter structure or a hole structure.

8. The high-efficiency heat exchange composite filler for cooling tower according to claim 1, characterized in that: The angle between the upper guide plate (2) and the horizontal plane is 45°-75°.

9. The high-efficiency heat exchange composite filler for cooling tower according to claim 1, characterized in that: The angle between the lower guide plate (4) and the horizontal plane is 45°-75°.

10. The high-efficiency heat exchange composite filler for cooling tower according to claim 3, characterized in that: The length of the middle layer filler (3) is shorter than that of the upper layer filler (1) and the lower layer filler (5), and the distance between the side wall of the middle layer filler (3) and the inner wall of the tower body (9) is the same.

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