cooling tower

Abstract

The application discloses a cooling tower, which comprises a tower body, a first air-water separation mechanism and a first pipeline. The tower body is internally provided with a cooling cavity, and the top side of the tower body is provided with an air outlet communicating with the cooling cavity. The first air-water separation mechanism comprises a cover body and a plurality of flow guide members. The cover body is arranged outside the tower body, and the lower end of the cover body is in an open arrangement and covers the air outlet. The plurality of flow guide members are arranged at the air outlet and are arranged in a spaced manner along the circumference of the air outlet. The flow guide members are configured to guide the air flow to form a rotating air flow along the circumference of the air outlet. One end of the first pipeline is communicated with the upper end of the cover body. The technical scheme of the application can separate the air flow discharged by the cooling tower, inhibit the overflow of the mist-containing air flow, reduce the negative impact on the external environment and equipment of the cooling tower, and recycle and utilize the water resource to reduce the loss.

Description

Technical Field

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

[0002] Cooling towers are core equipment in industrial cooling systems, exchanging heat between water and air to lower the temperature of circulating water. However, during operation, cooling towers in related technologies discharge saturated, humid air containing numerous tiny droplets into the surrounding environment, forming a visible mist. The direct emission of this mist increases humidity in the area surrounding the cooling tower, leading to equipment corrosion, electrical safety hazards, and other problems. Furthermore, some of the water mist contains trace amounts of chemicals, which can easily pollute the environment. Therefore, cooling towers in related technologies can easily have negative impacts on the external environment and equipment during use. Summary of the Invention

[0003] The main objective of this application is to provide a cooling tower that can separate air and water in the discharged airflow and suppress the overflow of misty airflow, so as to reduce the negative impact on the external environment and equipment of the cooling tower.

[0004] To achieve the above objectives, the cooling tower proposed in this application includes: The tower body has a cooling chamber inside and an airflow outlet communicating with the cooling chamber is provided on the top side of the tower body; A first gas-liquid separation mechanism includes a cover and multiple flow guides. The cover is located outside the tower body, with an opening at its lower end covering the airflow outlet. Multiple flow guides are located at the airflow outlet and arranged at circumferential intervals along the outlet. These flow guides are configured to guide the airflow to form a rotating airflow along the circumference of the outlet. The first pipe has one end connected to the upper end of the cover.

[0005] Optionally, in the circumferential direction of the airflow outlet, each of the guide members has a guide surface on the same side; In the direction from bottom to top, the guide surface extends in an arc shape and gradually slopes towards the side it is facing; The guide surface extends in an arc shape from the center to the edge of the airflow outlet and gradually slopes toward the side it is facing.

[0006] Optionally, a liquid collection tank is provided on the inner side of the lower end of the cover, and the liquid collection tank is arranged around the airflow outlet and the plurality of the guide members; The cooling tower also includes a second pipe, which connects the liquid collection tank and the cooling chamber.

[0007] Optionally, the guide member is provided with a liquid collection chamber, and at least one surface of the guide member other than the bottom surface is provided with a first communication port, which is connected to the liquid collection chamber.

[0008] Optionally, in the circumferential direction of the airflow outlet, each of the guide members has a guide surface on the same side, and the first communication port is provided on the guide surface.

[0009] Optionally, a liquid collection tank is provided on the inner side of the lower end of the cover, and the liquid collection tank is arranged around the airflow outlet and the plurality of the guide members; In the radial direction of the airflow outlet, the guide member has a first side adjacent to the guide surface on the side near the liquid collection tank, and the first side is provided with a second communication port; The second connecting port is positioned higher than the liquid collection tank and connects the liquid collection tank and the liquid collection cavity.

[0010] Optionally, the first gas-liquid separation mechanism further includes an annular component, which is disposed on the inner side of the lower end of the cover and surrounds the airflow outlet, and the annular component and the cover form the liquid collection tank.

[0011] Optionally, in the radial direction of the airflow outlet, the guide member is connected to the annular member on the side near the liquid collection tank; On the horizontal projection plane, the projection of the second connecting port is located within the liquid collection tank.

[0012] Optionally, the first pipe is connected to a plurality of transition pipes at one end near the cover, the plurality of transition pipes are disposed on the inner side of the upper end of the cover, and each of the transition pipes extends radially along the airflow outlet. The plurality of transition pipes include a first transition pipe and a second transition pipe, the first transition pipe and the second transition pipe having different lengths, and are arranged alternately in the circumferential direction of the airflow outlet.

[0013] Optionally, the cooling tower further includes a second gas-water separation mechanism, the second gas-water separation mechanism comprising: A housing, located outside the cover and on the first pipe, includes a condensation chamber with an air inlet and an air outlet, both connected to the first pipe; and Multiple heat exchange tubes are spaced apart within the condensation chamber, and both ends of the heat exchange tubes extend through the housing to the outside of the condensation chamber.

[0014] The cooling tower of this application has a cover at the airflow outlet on the top side of the tower body, and multiple guide elements are installed at the airflow outlet. This allows the airflow containing water mist inside the cooling chamber to flow through the guide elements as it exits the airflow outlet. The guide elements guide the airflow to form a rotating airflow along the circumference of the airflow outlet. Since water is denser than air, the centrifugal force of the rotating airflow gradually throws the water mist mixed in the airflow to the inside of the cover, thereby achieving air-water separation and suppressing the overflow of misty airflow, thus reducing the negative impact on the external environment and equipment of the cooling tower. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the cooling tower of this application; Figure 2 for Figure 1 A partial cross-sectional view of the central cooling tower; Figure 3 for Figure 2 Schematic diagram of the assembly structure of the central guide component and the annular component; Figure 4 for Figure 3 A schematic diagram of the central guide component from one perspective; Figure 5 for Figure 4 Another perspective view of the central guide component; Figure 6 for Figure 2 Schematic diagram of the intermediate transition pipe; Figure 7 This is a schematic diagram of the structure of an embodiment of the second gas-water separation mechanism of this application; Figure 8 for Figure 7 Another perspective schematic diagram of the second gas-water separation mechanism in the middle; Figure 9 for Figure 7 A cross-sectional schematic diagram of the second gas-water separation mechanism.

[0017] Explanation of icon numbers: 100. Cooling tower; 10. Tower body; 11. Cooling chamber; 13. Airflow outlet; 30. First air-water separation mechanism; 31. Cover; 33. Flow guide; 331. Flow guide surface; 332. First connecting port; 333. First side; 334. Second connecting port; 335. Liquid collection chamber; 35. Annular component; 351. Liquid collection tank; 50. First pipe; 51. First branch pipe; 511. Transition pipe; 512. First 513. Transition pipe; 53. Second transition pipe; 53. Manifold; 531. Front pipe section; 532. Rear pipe section; 55. Second branch pipe; 60. Second pipeline; 70. Second gas-water separation mechanism; 71. Shell; 711. Condensation chamber; 712. Air inlet; 713. Air outlet; 714. Manifold; 715. Partition wall; 73. Heat exchanger pipe; 75. Third pipeline; 77. Fourth pipeline; 80. Water collection tank; 90. Fan.

[0018] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0021] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0023] Please refer to the reference. Figure 1 and Figure 2 This application proposes a cooling tower 100. In one embodiment of this application, the cooling tower 100 includes a tower body 10, a first air-water separation mechanism 30, and a first pipe 50. The tower body 10 is provided with a cooling chamber 11, and the top side of the tower body 10 is provided with an airflow outlet 13 communicating with the cooling chamber 11. The first air-water separation mechanism 30 includes a cover 31 and a plurality of guide members 33. The cover 31 is located on the outside of the tower body 10, and the lower end of the cover 31 is open and covers the airflow outlet 13. The plurality of guide members 33 are located at the airflow outlet 13 and are arranged at intervals along the circumference of the airflow outlet 13. The guide members 33 are configured to guide the airflow to form a rotating airflow along the circumference of the airflow outlet 13. One end of the first pipe 50 is connected to the upper end of the cover 31.

[0024] The tower body 10 can be used to form a cooling chamber 11 for heat exchange with the water requiring cooling. Specifically, a water distributor can be installed in the cooling chamber 11, which is connected to a hot water pipe; packing material can be installed below the water distributor, and a water collection tank can be installed below the packing material, connected to a return water pipe; at the same time, an airflow inlet can be installed on the lower side wall of the tower body 10, the height of which can be located between the packing material and the water collection tank. This allows the high-temperature water generated by the industrial equipment to be transported to the water distributor through the hot water pipe; then, the water distributor can spray the high-temperature water onto the packing material to form a water film; simultaneously, outside air can enter the cooling chamber 11 through the airflow inlet and flow from bottom to top through the packing material; the water film form can increase the contact area with the air, thereby achieving higher heat exchange and reducing the water temperature, and after falling into the water collection tank, it can be transported back to the industrial equipment for recycling through the return water pipe. Since the working principle of the cooling tower 100 is existing technology, the internal structure of the tower body 10 will not be described in detail here. In addition, the tower body 10 can be rectangular or cylindrical, and this application does not limit it in this respect.

[0025] The first gas-water separation mechanism 30 is used to separate the water mist, i.e., the suspended tiny water droplets, when high-temperature water is sprayed through the water distributor and splashes around in the packing. This is because the water droplets are carried away by the airflow. Therefore, by setting the first gas-water separation mechanism 30 at the airflow outlet 13 on the top side of the tower body 10, it can be used to separate the water mist, i.e., the suspended tiny water droplets, mixed in with the airflow.

[0026] The cover 31 can be used to cover the outside of the airflow outlet 13 to form a separation chamber for separating water mist mixed in the airflow. The lower end of the cover 31 can be open, meaning the opening at the lower end is formed directly by the side wall of the cover 31. Alternatively, the lower end of the cover 31 can have a bottom wall with the opening on that wall. Furthermore, the cover 31 can be cylindrical or frustum-shaped; this application does not limit the structural form or shape of the cover 31. In addition, the cover 31 and the tower body 10 can be an integrally formed structure; alternatively, they can be separate structures, connected and assembled using any connection method such as welding, threaded connection, or snap-fit ​​connection.

[0027] The guide element 33 can be used to guide the flowing airflow, forming a rotating airflow that rotates circumferentially along the airflow outlet 13. The centrifugal force of this rotating airflow then propels the larger water mist towards the inner wall of the cover 31, while the remaining airflow continues to flow upwards. The guide element 33 being located at the airflow outlet 13 means that it can be at least partially disposed within the airflow outlet 13, including either being entirely disposed within the outlet 13, or partially disposed within the outlet 13 and another portion within the cover 31 and / or the cooling chamber 11; alternatively, the guide element 33 can be disposed within the cover 31 and located at one end near the airflow outlet 13; or the guide element 33 can be disposed within the cooling chamber 11 and located at one end near the airflow outlet 13. Furthermore, the guide element 33 can be a guide vane with an arc-shaped guide surface 331 as described below. Of course, in other embodiments, the guide member 33 can also be an inclined straight plate, so that when the rising airflow passes by, it can be changed in direction after impacting the inclined straight plate to generate a circumferential rotating airflow. Alternatively, the first air-water separation mechanism 30 also includes a support shaft located at the center of the airflow outlet 13, and the multiple guide members 33 can be spiral blades fixed on the support shaft. The multiple spiral blades are evenly distributed radially along the circumference of the support shaft, and each spiral blade extends inclined to the same circumferential side to guide the airflow to form a circumferential rotating airflow. It can be seen that this application does not limit the structural form of the guide member 33, as long as the structure can be used to guide the airflow to form a rotating airflow.

[0028] The first pipe 50 can be connected to the upper end of the cover 31 at one end and to the fan 90 at the other end, so that the fan 90 can drive the inner side of the cover 31 to continuously form a negative pressure state, thereby forming a humid and hot airflow in the cooling chamber 11, which can stably form a directional flow from bottom to top under the action of negative pressure.

[0029] Additionally, it should be noted that the top side of a tower body 10 may have one airflow outlet 13, or it may have two or more airflow outlets 13. In this case, each airflow outlet 13 may be equipped with a first air-water separation mechanism 30; and the upper end of the cover 31 of each first air-water separation mechanism 30 may be connected to a first pipe 50. Alternatively, the first pipe 50 may include at least two first branch pipes 51 and a manifold 53, and the upper end of each first air-water separation mechanism 30 may be connected to a first branch pipe 51. The ends of at least two first branch pipes 51 away from the cover 31 may be connected to the manifold 53, in order to simplify the pipe structure design, reduce the number of fans 90 required, improve the convenience of manufacturing the cooling tower 100, and reduce manufacturing costs.

[0030] The cooling tower 100 of this application has a cover 31 covering the airflow outlet 13 on the top side of the tower body 10, and multiple guide members 33 are provided at the airflow outlet 13. This allows the airflow containing water mist in the cooling chamber 11 to flow through the guide members 33 when discharged from the airflow outlet 13, and the guide members 33 guide the airflow to form a rotating airflow along the circumference of the airflow outlet 13. Since water is denser than air, the centrifugal force of the rotating airflow gradually throws the water mist mixed in the airflow to the inside of the cover 31, thereby achieving air-water separation and suppressing the overflow of misty airflow, thus reducing the negative impact on the external environment and equipment of the cooling tower 100.

[0031] Please refer to the reference. Figures 2 to 5 In one embodiment of this application, each guide member 33 has a guide surface 331 on the same side in the circumferential direction of the airflow outlet 13. The guide surface 331 is configured to guide the airflow to form a rotating airflow in the circumferential direction of the airflow outlet 13. In the direction from bottom to top, the guide surface 331 extends in an arc shape and gradually tilts to the side it is facing. In the direction from the center to the edge of the airflow outlet 13, the guide surface 331 extends in an arc shape and gradually tilts to the side it is facing.

[0032] The fact that each flow guide 33 has a flow guide surface 331 on the same side means that, on the horizontal projection plane, the flow guide surface 331 can be on the side in the counterclockwise direction or on the side in the clockwise direction.

[0033] In the direction from bottom to top, the guide surface 331 extends in an arc shape and gradually tilts towards the side it is facing. This means that from the lower end to the upper end of the guide surface 331, the guide surface 331 gradually gets closer to the side it is facing.

[0034] In the direction from the center to the edge of the airflow outlet 13, the guide surface 331 extends in an arc shape and gradually tilts towards the side it faces. This means that along the radial direction of the airflow outlet 13, from the inner side to the outer side of the guide surface 331, the guide surface 331 gradually gets closer to the side it faces.

[0035] In this embodiment, the guide surface 331 extends in an arc shape not only from bottom to top but also from center to edge. The arc transition in these two directions creates a smooth spatial twisted surface in three-dimensional space. This spatially twisted arc-shaped guide surface 331 effectively guides and propels the airflow in both the vertical and horizontal directions, accurately and stably converting the originally vertically upward airflow into a uniform circumferential rotating airflow. The high-speed rotation of the airflow generates a strong centrifugal force. Because the density of liquid water mist is much greater than that of air, the water mist trapped in the airflow is efficiently thrown off the turning trajectory and impacts the inner wall of the cover 31, thus achieving gas-liquid separation and suppressing the discharge and overflow of mist-laden airflow.

[0036] Additionally, it should be noted that the guide member 33 can be formed as a back-to-back side on the side facing away from the guide surface 331, and the shape of this back-to-back side can be set to be consistent with the shape of the guide surface 331. Of course, the shape of the back-to-back side can also be set to be different from the shape of the guide surface 331. For example, in the direction from bottom to top, the back-to-back side can be set to extend in an arc shape and gradually slope towards the guide surface 331; in the direction from the center to the edge of the airflow outlet 13, there are no design requirements for the back-to-back side.

[0037] Please refer to Figure 4 In one embodiment of this application, the guide member 33 is provided with a liquid collection cavity 335, and at least one surface of the guide member 33 other than the bottom surface is provided with a first communication port 332, which is connected to the liquid collection cavity 335.

[0038] The first connecting port 332 is provided on at least one surface of the flow guide 33 other than the bottom surface. This means that the first connecting port 332 can be provided on the flow guide surface 331. Of course, it can also be provided on other sides or the top surface of the flow guide 33. Alternatively, the first connecting port 332 can be provided on at least two of the flow guide surface 331, other sides of the flow guide 33, and the top surface. This application does not limit the number or position of the first connecting ports 332. In addition, the first connecting port 332 can be elongated or square. This application does not limit the shape of the first connecting port 332.

[0039] In this embodiment, a liquid collection chamber 335 and a first connecting port 332 are provided on the guide member 33. When the hot and humid airflow passes through the guide member 33, due to its own inertia, some fine water mist cannot change direction quickly with the airflow, thus directly impacting and adhering to the surface of the guide member 33. At this time, the water mist adhering to the surface of the guide member 33 can flow into the liquid collection chamber 335 through the first connecting port 332 under the action of gravity for collection, realizing the initial interception and capture of water mist mixed with the airflow by the guide member 33. At the same time, as described above, the guide member 33 can also guide the airflow to form a rotating airflow through its guiding surface 331, and use centrifugal force to throw the water mist with relatively large particle size in the airflow towards the inner wall of the cover 31, realizing efficient centrifugal separation. Therefore, by combining the physical interception of the guide element 33 with the centrifugal ejection of the rotating airflow, a dual separation mechanism is achieved at the guide element 33 for the water mist entrained in the airflow, which is beneficial to improving the separation effect and efficiency of the first air-water separation mechanism 30 for the water mist entrained in the airflow.

[0040] Please refer to Figure 4 In one embodiment of this application, the first communication port 332 is provided on the flow guide surface 331.

[0041] In this embodiment, the first connecting port 332 is disposed on the guide surface 331, and the guide surface 331 has a large contact area with the airflow, which is beneficial to improving the physical interception and collection effect of the guide component 33 on some water mist. At the same time, since the guide surface 331 is set to be arc-shaped and inclined as described above, the water mist attached to the guide surface 331 can easily slide down the arc surface to the first connecting port 332 under the action of gravity, so as to achieve efficient gravity-flow recovery of water mist. Moreover, after the water mist intercepted on the guide surface 331 is recovered, it can also be placed in the liquid collection chamber 335, reducing the possibility of secondary entrainment caused by the subsequent airflow, which is beneficial to improving the reliability of the first gas-water separation mechanism 30 in separating water mist entrained in the airflow.

[0042] Please refer to Figure 2 In one embodiment of this application, a liquid collection groove 351 is provided on the inner side of the lower end of the cover 31, and the liquid collection groove 351 is arranged around the airflow outlet 13 and a plurality of guide members 33.

[0043] The liquid collection tank 351 can be formed between the annular member 35 and the cover 31, as described below. Alternatively, it can be formed by a recess on the upper surface of the tower body 10. This application does not limit the formation direction of the liquid collection tank 351.

[0044] In this embodiment, a liquid collection tank 351 is provided on the inner side of the lower end of the cover 31, which can collect water mist thrown off to the inner wall of the cover 31 by the centrifugal force of the rotating airflow, so that it can be collected in the liquid collection tank 351 when it flows down the side wall of the cover 31.

[0045] In one embodiment of this application, the inner sidewall of the cover 31 may be provided with a plurality of spiral ribs. The plurality of spiral ribs are arranged along the circumference of the cover 31 so as to better receive the water mist thrown off by the rotating airflow and guide it so that it flows accurately and quickly downward into the liquid collection tank 351.

[0046] Please refer to Figure 1 In one embodiment of this application, the cooling tower 100 further includes a second pipe 60, which is connected to the liquid collection tank 351 and the cooling chamber 11.

[0047] In this embodiment, the collection tank 351 and the cooling chamber 11 are connected by a second pipe 60, so that the water collected in the collection tank 351 can be transported to the collection pool in the cooling chamber 11 through the second pipe 60 to achieve water recycling. The end of the second pipe 60 away from the collection tank 351 can be directly connected to the collection pool, or it can be connected to the water collection tank 80, and then the water collection tank 80 is connected to the collection pool through a pipe.

[0048] Please refer to Figure 2 In one embodiment of this application, the first gas-water separation mechanism 30 further includes an annular member 35, which is disposed on the inner side of the lower end of the cover 31 and surrounds the airflow outlet 13. A liquid collection groove 351 is formed between the annular member 35 and the cover 31.

[0049] The liquid collection tank 351 can be formed by the annular member 35, the upper surface of the tower body 10, and the side wall of the cover 31. Of course, when the cover 31 includes an annular bottom wall connected to the inner side of the side wall of the cover 31, the liquid collection tank 351 can be formed by the annular member 35, the bottom wall of the cover 31, and the side wall.

[0050] In this embodiment, a liquid collection tank 351 is formed by providing an annular member 35 on the inner side of the lower end of the cover 31. The required depth of the liquid collection tank 351 can be easily controlled by the height of the annular member 35, which is beneficial to improving the convenience of processing and forming the liquid collection tank 351.

[0051] Please refer to the reference. Figures 2 to 5 In one embodiment of this application, in the radial direction of the airflow outlet 13, the guide member 33 has a first side surface 333 adjacent to the guide surface 331 on the side near the liquid collection tank 351, and the first side surface 333 is provided with a second communication port 334; the position of the second communication port 334 is higher than that of the liquid collection tank 351, and it is connected to the liquid collection tank 351 and the liquid collection cavity 335.

[0052] In this embodiment, the position of the first connecting port 332 in the vertical direction can be higher than that of the second connecting port 334, so that the water collected in the collection chamber can enter the liquid collection tank 351 through the first connecting port 332, reducing the possibility of excessive overflow of water collected in the collection chamber.

[0053] Please refer to the reference. Figure 2 and Figure 3 In one embodiment of this application, the guide member 33 is connected to the annular member 35 on the radial side of the airflow outlet 13 near the liquid collection tank 351; on the horizontal projection plane, the projection of the second communication port 334 is located inside the liquid collection tank 351.

[0054] In this embodiment, the annular component 35 also provides a mounting position for the guide component 33, allowing the guide component 33 to be fixed on the annular component 35, thus improving the ease of installation of the guide component 33. Simultaneously, it also allows the second connecting port 334 to be closer to the collection tank 351, facilitating the direct flow of water from the collection chamber into the collection tank 351 through the second connecting port 334, eliminating the need for intermediate connecting pipes and simplifying the structural design.

[0055] In one embodiment of this application, to simplify the structural design of the guide member 33, the collection cavity can extend through the upper surface of the guide member 33. Simultaneously, it also facilitates the collection of water mist adhering to the upper surface of the guide member 33 into the collection cavity.

[0056] Please refer to the reference. Figure 1 , Figure 2 as well as Figure 6 In one embodiment of this application, the first pipe 50 is connected to a plurality of transition pipes 511 at one end near the cover 31. The plurality of transition pipes 511 are located on the inner side of the upper end of the cover 31, and each transition pipe 511 extends in the radial direction of the airflow outlet 13. The plurality of transition pipes 511 include a first transition pipe 512 and a second transition pipe 513. The first transition pipe 512 and the second transition pipe 513 have different lengths and are arranged alternately in the circumferential direction of the airflow outlet 13.

[0057] Multiple transition pipes 511 are all horizontally arranged, with their adjacent ends connected to the first pipe 50 and their distant ends connected to the space inside the cover 31. For example, when there are four transition pipes 511, they can form a cross shape on the horizontal projection plane. Of course, in other embodiments, the number of transition pipes 511 can also be six or eight, etc., and this application does not limit the number of transition pipes 511. In addition, when the first pipe 50 includes multiple first branch pipes 51 and a manifold 53 as described above, the multiple transition pipes 511 can be located at the end of the first branch pipe 51 that is away from the manifold 53.

[0058] In this embodiment, alternating first transition pipes 512 and second transition pipes 513 are further provided on the inner side of the upper end of the cover 31, and the two are of different lengths. This creates a pressure difference between the area acted upon by the long pipe and the area acted upon by the short pipe, thereby driving the airflow to rotate circumferentially along the airflow outlet 13. At this time, it can be superimposed with the upward rotating airflow formed by the guide member 33 to further enhance the rotation effect of the airflow, thereby improving the centrifugal separation effect of air and water.

[0059] Please refer to the reference. Figure 1 ,as well as Figures 7 to 9 In one embodiment of this application, the cooling tower 100 further includes a second gas-water separation mechanism 70. The second gas-water separation mechanism 70 includes a shell 71 and a plurality of heat exchange tubes 73. The shell 71 is located outside the cover 31 and on the first pipe 50. A condensation chamber 711 is provided inside the shell 71. The condensation chamber 711 has an air inlet 712 and an air outlet 713. Both the air inlet 712 and the air outlet 713 are connected to the first pipe 50. The plurality of heat exchange tubes 73 are spaced apart in the condensation chamber 711, and both ends of the heat exchange tubes 73 extend through the shell 71 to the outside of the condensation chamber 711.

[0060] The second gas-water separation mechanism 70 is located on the first pipe 50, meaning that the second gas-water separation mechanism 70 is connected in series between two pipe sections of the first pipe 50. For example, when the first pipe 50 includes multiple first branch pipes 51 and a manifold 53 as described above, the manifold 53 may include a front pipe section 531 and a rear pipe section 532. The multiple first branch pipes 51 may be connected to the end of the front pipe section 531 away from the rear pipe section 532. The shell 71 may be connected in series between the front pipe section 531 and the rear pipe section 532 through an air inlet 712 and an air outlet 713. The heat exchange tube 73 may have a hollow internal structure, allowing external airflow to flow through the interior of the heat exchange tube 73, and the space inside the heat exchange tube 73 is isolated from the condensing chamber 711. In addition, the multiple heat exchange tubes 73 may be arranged in an array within the cooling chamber 11 to increase the heat exchange area with the airflow flowing through the condensing chamber 711.

[0061] In this embodiment, after the airflow passes through the first air-water separation mechanism 30 to separate water mist, water vapor may still be mixed in the airflow. At this time, after the airflow enters the condensation chamber 711, it can exchange heat with the heat exchange tube 73. Since there is an external airflow flowing through the heat exchange tube 73, its temperature is lower than that of the airflow discharged from the tower body 10. As a result, the water vapor mixed in the airflow can condense after contacting the lower-temperature heat exchange tube 73, forming water droplets that are intercepted and attached to the heat exchange tube 73, thereby achieving further separation of the water vapor mixed in the airflow.

[0062] In one embodiment of this application, the heat exchange tube 73 may be made of a material with good thermal conductivity, such as aluminum, in order to improve the heat exchange effect between the airflow in the heat exchange tube 73 and the airflow flowing through the cooling chamber 11.

[0063] Please refer to the reference. Figure 7 and Figure 9 In one embodiment of this application, the shell 71 extends horizontally and has an air inlet 712 and an air outlet 713 at its two ends in the horizontal direction, respectively. The heat exchange tube 73 can extend vertically and is inclined towards the side of the air inlet 712 in the upward direction, so as to improve the interception and disturbance effect on the airflow, so as to form turbulent airflow, increase the contact area between the heat exchange tube 73 and the airflow, so as to improve the interception and condensation effect of water vapor.

[0064] Please refer to Figure 9 In one embodiment of this application, a plurality of heat exchange tubes 73 may be arranged in a row at intervals along the width direction of the housing 71 and in multiple rows along the length direction of the housing 71. In two adjacent rows of heat exchange tubes 73, the heat exchange tubes 73 may be arranged in a one-to-one correspondence along the length direction of the housing 71, or they may be arranged in a staggered manner to improve the effect of intercepting and disturbing the airflow.

[0065] Please refer to the reference. Figure 1 and Figure 9 In one embodiment of this application, a manifold 714, isolated from the condensing cavity 711, can be formed inside the housing 71 above it. The upper end of the heat exchange tube 73 passes through the partition wall 715 in the housing 71 that separates the condensing cavity 711 and the manifold 714, and communicates with the manifold 714. The second gas-water separation mechanism 70 also includes a third pipe 75, one end of which can be connected to the manifold 714. After being connected to the fan 90 through the third pipe 75, a negative pressure can be formed in the manifold 714, so that the external airflow can continuously flow from bottom to top through the heat exchange tube 73, so that the heat exchange tube 73 can remain at a low temperature, thereby condensing the water vapor in the airflow flowing through the condensing cavity 711.

[0066] Please refer to Figure 1 In one embodiment of this application, the end of the first pipe 50 away from the cover 31 and the end of the third pipe 75 away from the housing 71 may share a single fan 90 to simplify the structural configuration of the cooling tower 100. Of course, they can also use different fans 90.

[0067] Please refer to the reference. Figure 1 and Figure 9In one embodiment of this application, the second gas-water separation mechanism 70 further includes a fourth pipe 77. One end of the fourth pipe 77 can be connected to the bottom of the housing 71 and communicate with the condensation chamber 711 to discharge the water collected at the bottom of the condensation chamber 711 through the fourth pipe 77. The other end of the fourth pipe 77 can be connected to a water collection pool below the cooling chamber 11 of the tower body 10 for recycling the collected water. The end of the fourth pipe 77 away from the housing 71 can be directly connected to the water collection pool below the cooling chamber 11 of the tower body 10, or it can be first connected to a water collection tank 80, and then the water collection tank 80 is connected to the water collection pool through a pipe. In this case, the fourth pipe 77 and the second pipe 60 can be connected to the same water collection tank 80.

[0068] Please refer to Figure 1 In one embodiment of this application, the first pipe 50 further includes a second branch pipe 55 connected to the end of the second section away from the housing 71 in the manifold 53, so that the end of the second section away from the housing 71 can be connected to the water collection tank 80; the second section can also be connected to the fan 90 through the second branch pipe 55. In this case, a gas-water separation mechanism can be further provided in the second section so that the collected water can be directly collected in the water collection tank 80. The gas-water separation mechanism may include, but is not limited to, a filter screen; this application does not limit the type of gas-water separation mechanism used here.

[0069] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A cooling tower, characterized in that, include: The tower body has a cooling chamber inside and an airflow outlet communicating with the cooling chamber is provided on the top side of the tower body; The first gas-liquid separation mechanism includes a cover and multiple flow guides. The cover is located on the outside of the tower body, and the lower end of the cover is open and covers the airflow outlet. The multiple flow guides are located at the airflow outlet and are arranged at intervals along the circumference of the airflow outlet. The flow guides are configured to guide the airflow to form a rotating airflow along the circumference of the airflow outlet. as well as The first pipe has one end connected to the upper end of the cover.

2. The cooling tower as described in claim 1, characterized in that, In the circumferential direction of the airflow outlet, each of the guide members has a guide surface on the same side; In the direction from bottom to top, the guide surface extends in an arc shape and gradually slopes towards the side it is facing; The guide surface extends in an arc shape from the center to the edge of the airflow outlet and gradually slopes toward the side it is facing.

3. The cooling tower as described in claim 1, characterized in that, The inner side of the lower end of the cover is provided with a liquid collection tank, which surrounds the airflow outlet and the plurality of the flow guides; The cooling tower also includes a second pipe, which connects the liquid collection tank and the cooling chamber.

4. The cooling tower as described in claim 1, characterized in that, The guide member has a liquid collection chamber inside, and at least one surface of the guide member other than the bottom surface has a first communication port, which is connected to the liquid collection chamber.

5. The cooling tower as described in claim 4, characterized in that, In the circumferential direction of the airflow outlet, each of the guide members has a guide surface on the same side, and the first communication port is provided on the guide surface.

6. The cooling tower as described in claim 5, characterized in that, The inner side of the lower end of the cover is provided with a liquid collection tank, which surrounds the airflow outlet and the plurality of the guide components; In the radial direction of the airflow outlet, the guide member has a first side adjacent to the guide surface on the side near the liquid collection tank, and the first side is provided with a second communication port; The second connecting port is positioned higher than the liquid collection tank and connects the liquid collection tank and the liquid collection cavity.

7. The cooling tower as described in claim 6, characterized in that, The first gas-liquid separation mechanism further includes an annular component, which is located on the inner side of the lower end of the cover and surrounds the airflow outlet. The annular component and the cover form the liquid collection tank.

8. The cooling tower as described in claim 7, characterized in that, In the radial direction of the airflow outlet, the guide member is connected to the annular member on the side near the liquid collection tank; On the horizontal projection plane, the projection of the second connecting port is located within the liquid collection tank.

9. The cooling tower according to any one of claims 1 to 8, characterized in that, The first pipe is connected to a plurality of transition pipes at one end near the cover. The plurality of transition pipes are located on the inner side of the upper end of the cover, and each of the transition pipes extends radially along the airflow outlet. The plurality of transition pipes include a first transition pipe and a second transition pipe, the first transition pipe and the second transition pipe having different lengths, and are arranged alternately in the circumferential direction of the airflow outlet.

10. The cooling tower according to any one of claims 1 to 8, characterized in that, The cooling tower further includes a second gas-water separation mechanism, which comprises: A housing, located outside the cover and on the first pipe, includes a condensation chamber with an air inlet and an air outlet, both connected to the first pipe; and Multiple heat exchange tubes are spaced apart within the condensation chamber, and both ends of the heat exchange tubes extend through the housing to the outside of the condensation chamber.

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