Cooling tower with composite structure

Abstract

The utility model relates to a composite structure type cooling tower, including shell, and setting up from top to bottom air-out unit, spray unit, heat dissipation unit, heat exchange unit and reservoir, air-out unit includes a plurality of fan, spray unit includes a plurality of spray pipe that are set up at interval, each spray pipe is distributed with a plurality of spray head at interval, the spray head is connected with the shell, the heat dissipation unit is connected with the heat exchange unit, and the reservoir is connected with the shell. The heat dissipation unit comprises a plurality of layers of heat dissipation fillers, the heat exchange unit comprises a liquid inlet channel, a liquid outlet channel and a plurality of groups of heat exchange devices, a transfer pipeline is arranged between every two adjacent heat exchange devices, and the water storage tank is connected with the spraying unit through a pipeline. The advantages of low manufacturing cost of an open cooling tower and closed circulation of a closed cooling tower are combined, the manufacturing cost and operation energy consumption of the cooling tower are effectively reduced while closed circulation is reserved, and the cooling tower can be suitable for treatment of various media and is better in practicability.

Description

Technical Field

[0001] The utility model relates to the field of cooling equipment, in particular to a composite structure cooling tower. Background Art

[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from the system and discharge it into the atmosphere to lower the water temperature. It is currently a widely used heat dissipation device. Cooling towers are mainly divided into open cooling towers and closed cooling towers. Among them, open cooling towers mainly use a spraying method to spray the medium that needs to be cooled in the industrial system (hereinafter referred to as the medium to be cooled) onto the heat dissipation filler. After the heat is dissipated by the heat dissipation filler, it is collected and sent back to the system. The open cooling tower is easy to clean and maintain due to its relatively simple structure and open water body. However, due to its open cycle, a part of the medium to be cooled will be lost during operation, and the open cycle method cannot be effectively used for the cooling of some toxic gases, volatile liquids or other liquids that cannot be exposed to the air. The closed cooling tower is a closed cycle, and the medium to be cooled does not come into contact with the outside world. It has a high degree of cleanliness and can be applied to It is used to cool toxic gases, volatile liquids or other liquids that cannot be exposed to the air. Compared with open cooling towers, it consumes less electricity and water, and has low operating costs. However, due to its complex structure and high technical requirements, closed cooling towers have high equipment investment and maintenance costs, so the cost and construction cost of closed cooling towers are much higher than open cooling towers. In addition, due to its low power and water consumption, closed cooling towers are more suitable for workplaces that require long-term operation (such as more than 4-5 years) from an economic point of view, while open cooling towers use low-cost heat dissipation fillers, which have better heat dissipation effects, and the overall structure of the cooling tower is simpler and easier to install, with low cost, which can be applied to some short-term workplaces.

[0003] Therefore, it is necessary to combine the advantages of the low cost of open cooling towers and the closed cycle of closed cooling towers, while retaining the closed cycle, reduce the cost of cooling towers, and obtain a cooling tower with better practicality. Utility Model Content

[0004] In view of this, the present application provides a composite structure cooling tower by combining the advantages of low construction cost of an open cooling tower and closed circulation of a closed cooling tower.

[0005] A composite structure cooling tower comprises: a shell; an air outlet unit, which is arranged at the top of the shell, and the air outlet unit comprises a plurality of fans; a spray unit, which is arranged below the air outlet unit, and the spray unit comprises a plurality of spray pipes arranged at intervals, and a plurality of nozzles are distributed at intervals on each of the spray pipes; a heat dissipation unit, which is arranged below the spray unit, and the heat dissipation unit comprises a multi-layer heat dissipation filler; a heat exchange unit, which is arranged below the heat dissipation unit, and the heat exchange unit comprises a liquid inlet channel, a liquid outlet channel and a plurality of heat exchange devices, and transfer pipelines are arranged between adjacent heat exchange devices, and the plurality of heat exchange devices are connected in sequence through the transfer pipelines, wherein the liquid inlet channel is connected to the heat exchange device at the starting end, and the liquid outlet channel is connected to the heat exchange device at the tail end; a water storage tank, which is arranged below the heat exchange unit, and the water storage tank is connected to the spray unit through a pipeline.

[0006] In the above technical solution, a cooling tower is provided for dissipating heat and cooling the medium in the industrial system, comprising a shell, wherein an air outlet unit is arranged on the surface of the top of the shell, a plurality of air outlets are opened on the top of the shell, and a fan is installed at each air outlet, and the fan is used to drive the air flow inside the cooling tower, and at the same time, bring the hot air inside out of the cooling tower to help dissipate heat, and a spray unit, a heat dissipation unit and a heat exchange unit are arranged from top to bottom inside the shell, and the spray unit is provided with a plurality of spray pipes spaced apart and parallel to each other, and the spray pipe sprays water through a plurality of nozzles thereon, and the heat exchange unit comprises a plurality of groups of heat exchange devices, and when the cooling tower is in use, the medium (gas or liquid) to be cooled in the industrial system passes through It enters the first heat exchange device through the liquid inlet pipe, and then is transferred to the next heat exchange device through the transfer pipeline, and finally is sent back to the system from the liquid outlet channel. While the above-mentioned medium moves into the heat exchange device, the water in the bottom water storage tank is sent to the spray unit through the pipeline, and the water is sprayed on the multi-layer heat dissipation filler below through the nozzle. After the water body dissipates heat through the multi-layer heat dissipation filler, it reaches a lower temperature and then falls into the heat exchange device below, so that the water body with lower temperature exchanges heat with the medium entering the heat exchange device, taking away the heat of the medium, thereby reducing the temperature of the medium and achieving the effect of heat dissipation and cooling. The water body after heat exchange returns to the water storage tank at the bottom for collection and recycling.

[0007] Among them, the air outlet unit, spray unit, heat dissipation unit and the water storage tank at the bottom of the cooling tower are equivalent to an open cooling tower, which adopts a spraying method to spray the high-temperature water in the bottom water storage tank after heat exchange with the medium onto the heat dissipation filler for cooling, and then sends it to the heat exchange device below to exchange heat with the medium. It has the characteristics of open circulation, simple overall structure, and adopts low-cost heat dissipation filler, and the cost is lower; in addition, by setting up multiple groups of heat exchange devices connected in sequence to perform multiple heat exchanges on the cooling medium, the flow of the medium is greatly lengthened, the heat exchange effect is improved, and the heat of the medium is effectively reduced. At the same time, the medium is inside the heat exchanger outside the system throughout the whole process, and does not contact the external environment throughout the whole process, realizing a closed cycle, without loss, and will not be polluted by the external environment, ensuring the purity of the medium, so it can also be applied to toxic gases, volatile liquids or other liquids that cannot be exposed to the air, with good practicality.

[0008] Therefore, the present application combines the advantages of low construction cost of an open cooling tower and closed circulation of a closed cooling tower, and forms a structure similar to an open cooling tower by arranging an air outlet unit, a spray unit, a heat dissipation unit and a water storage tank, and adds a heat exchange unit therein, and dissipates heat from the heat exchange device in the heat exchange unit through the air outlet unit, the spray unit, the heat dissipation unit and the water storage tank, and the cooling medium circulates in a closed manner throughout the heat exchange device without contacting the external environment; in addition, due to the use of heat dissipation fillers with a high porosity, its wind resistance is much lower than the wind resistance of traditional coils in a closed cooling tower. Under the same refrigeration capacity conditions, the power consumption of the cooling tower can be greatly reduced, energy consumption can be saved, and operating costs can be effectively reduced; therefore, while retaining a closed circulation, the present application greatly reduces construction costs and energy consumption, and can be applicable to the processing of a variety of media, with better practicality.

[0009] Furthermore, as a preferred technical solution, the heat exchange device includes a plurality of U-shaped tubes, and the plurality of U-shaped tubes are arranged in parallel.

[0010] In the above technical solution, the U-shaped tube is used to accommodate the medium to be cooled. The medium exchanges heat with the outside inside the U-shaped tube. The whole process is closed and has no contact with the external environment. Multiple U-shaped tubes are distributed in parallel and are independent of each other and do not contact each other.

[0011] Further, as a preferred technical solution, each of the U-shaped tubes includes a plurality of U-shaped inflection points, and each of the U-shaped tubes is provided with an inlet and an outlet at both ends.

[0012] In the above technical solution, the U-shaped tube is provided with multiple U-shaped inflection points, thereby lengthening the process and improving the heat exchange effect. One end of the U-shaped tube is an inlet for the medium to enter the U-shaped tube, and the other end is an outlet for the medium to be sent out of the U-shaped tube.

[0013] Furthermore, as a preferred technical solution, the heat exchange device is provided with two liquid separation mechanisms, which are arranged on the upper and lower sides of the heat exchange device, one of which is connected to the inlet of each U-shaped tube, and the other is connected to the outlet of each U-shaped tube.

[0014] In the above technical solution, each heat exchange device is provided with two liquid separation mechanisms, one of which is connected to the inlet of all U-shaped tubes in the heat exchange device, and the other is connected to the outlet of all U-shaped tubes. The liquid separation mechanism is provided with a plurality of holes connected to the inlet and outlet of the U-shaped tube. The liquid separation mechanism is used to evenly distribute the delivered medium into each U-shaped tube, and at the same time, the medium that completes heat exchange in all U-shaped tubes is collected.

[0015] Furthermore, as a preferred technical solution, both ends of the transfer pipeline are respectively connected to one of the liquid separation mechanisms of two adjacent heat exchange devices.

[0016] In the above technical solution, both ends of the transfer pipeline are respectively connected to a liquid separation mechanism in two heat exchange devices, so as to transfer the medium between the heat exchange devices.

[0017] Further, as a preferred technical solution, the liquid inlet channel and the liquid outlet channel are connected to the liquid separation mechanism.

[0018] In the above technical solution, the liquid inlet channel is connected to the liquid separation mechanism in the starting heat exchange device to send the medium to be cooled into the first heat exchange device, and the liquid outlet channel is connected to the liquid separation mechanism in the tail heat exchange device to send the medium after heat exchange in all heat exchange devices back to the system.

[0019] Further, as a preferred technical solution, the spray unit includes a water distribution mechanism, and the water distribution mechanism is connected to each of the spray pipes.

[0020] In the above technical solution, the water distribution mechanism is connected to one end of each spray pipe, and the water distribution mechanism is used to evenly distribute the delivered water to each spray pipe to ensure more uniform spraying.

[0021] Furthermore, as a preferred technical solution, a water pipeline is provided on one side of the shell, a power device is installed on the water pipeline, and both ends of the water pipeline are respectively connected to the water distribution mechanism and the water storage tank.

[0022] In the above technical solution, a power device is installed on the water supply pipeline, through which the water in the bottom water storage tank is sent to the water distribution device, sprayed out through the nozzle on the spray pipe and then returned to the water storage tank to achieve circulation.

[0023] Furthermore, as a preferred technical solution, a water replenishment port is provided on one side of the water storage tank.

[0024] In the above technical solution, part of the water evaporates after heat exchange with the heat exchange device and is sent out with the air under the action of the fan, causing a certain amount of water loss. The water replenishment port is used to replenish the water storage tank to ensure the normal circulation.

[0025] Further, as a preferred technical solution, an air inlet unit is provided between the heat dissipation unit and the heat exchange unit, and the air inlet unit includes a plurality of air inlets, and the plurality of air inlets are provided on the peripheral side surface of the shell.

[0026] In the above technical solution, external cold air enters the cooling tower through the air inlet, and cooperates with the fan on the top to realize the circulation of air inside the cooling tower, discharge the internal hot air in time, and improve the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 The figure is a three-dimensional diagram of a composite structure cooling tower according to an embodiment.

[0029] Figure 2 The figure is a three-dimensional diagram of a composite structure cooling tower according to an embodiment (after removing part of the shell).

[0030] Figure 3 This is a front view of the cooling tower of the present application.

[0031] Figure 4 for Figure 3 Right side view.

[0032] Figure 5 for Figure 3 Left side view.

[0033] Figure 6 This is a schematic diagram of the structure of the heat exchange unit described in this application.

[0034] Figure 7 It is a front view of the heat exchange unit.

[0035] Figure 8 It is a schematic diagram of the structure of the U-shaped tube.

[0036] Description of reference numerals in the figures:

[0037] 1-shell; 11-water pipeline; 12-power unit; 13-maintenance ladder; 2-air outlet unit; 21-fan; 3-spray unit; 31-spray pipe; 311-spray head; 312-slider; 32-water distribution mechanism; 4-heat dissipation unit; 41-heat dissipation filler; 5-air inlet unit; 51-air inlet; 6-heat exchange unit; 61-heat exchange device; 611-U-shaped tube; 6111-inflection point; 6112-elbow tube; 6113-straight tube; 612-liquid separation mechanism; 62-liquid inlet channel; 63-liquid outlet channel; 64-transfer pipeline; 7-water storage tank; 71-water replenishment port. DETAILED DESCRIPTION

[0038] The composite structure cooling tower of the utility model will be further described in detail below in combination with specific embodiments and drawings. The drawings are only used for exemplary descriptions, and only show schematic diagrams, not actual drawings, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0039] Please refer to Figures 1 to 6 In a preferred embodiment, a composite structure cooling tower is provided for cooling the medium in the industrial system, which comprises: a housing 1; an air outlet unit 2, which is arranged at the top of the housing 1, and the air outlet unit 2 comprises a plurality of fans 21; a spray unit 3, which is arranged below the air outlet unit 2, and the spray unit 3 comprises a plurality of spray pipes 31 arranged at intervals, and each spray pipe 31 is provided with a plurality of nozzles 311 at intervals; a heat dissipation unit 4, which is arranged below the spray unit 3, and the heat dissipation unit 4 comprises a plurality of layers of heat dissipation fillers 4 1; a heat exchange unit 6, which is arranged below the heat dissipation unit 4, and the heat exchange unit 6 includes a liquid inlet channel 62, a liquid outlet channel 63 and a plurality of heat exchange devices 61, and a transfer pipeline 64 is provided between adjacent heat exchange devices 61, and the plurality of heat exchange devices 61 are connected in sequence through the transfer pipeline 64, wherein the liquid inlet channel 62 is connected to the heat exchange device 61 at the starting end, and the liquid outlet channel 63 is connected to the heat exchange device 61 at the tail end; a water storage tank 7, which is arranged below the heat exchange unit 6, and the water storage tank 7 is connected to the spray unit 3 through a pipeline.

[0040] In this embodiment, the air outlet unit 2 is arranged on the surface of the top of the shell 1, and two air outlets are opened on the top of the shell 1 (not shown in the figure, which are located on the surface of the shell 1 below the fan 21). Each air outlet is installed with a fan 21, and the fan 21 is used to drive the air flow inside the cooling tower, and at the same time bring the hot air inside out of the cooling tower to help dissipate heat. The shell 1 is provided with a spray unit 3, a heat dissipation unit 4 and a heat exchange unit 6 from top to bottom. Specifically, the spray unit 3 is provided with 5 spray pipes 31 spaced apart and parallel to each other, and each spray pipe 31 is provided with a plurality of nozzles 311 for spraying water. The heat exchange unit 6 includes 2 groups of heat exchange devices 61. When the cooling tower is in use, the medium (gas or liquid) to be cooled in the industrial system enters through the liquid inlet pipe. The liquid is then transferred to one of the heat exchange devices 61 through the transfer pipeline 64 and then to another heat exchange device 61 and finally sent back to the system from the liquid outlet channel 63. While the above medium moves into the heat exchange device 61, the water in the bottom water storage tank 7 is sent to the spray unit 3 through the side water delivery pipeline 11, and the water is sprayed on the multi-layer heat dissipation filler 41 below through the nozzle 311. The water reaches a lower temperature after the multi-layer heat dissipation filler 41 dissipates heat and then falls into the heat exchange device 61 below, so that the water with lower temperature exchanges heat with the medium entering the heat exchange device 61, takes away the heat of the medium, thereby reducing the temperature of the medium and achieving the effect of heat dissipation and cooling. The water after heat exchange returns to the bottom water storage tank 7 for collection and recycling.

[0041] Among them, the air outlet unit 2, the spray unit 3, the heat dissipation unit 4 and the water storage tank 7 at the bottom of the cooling tower are equivalent to an open cooling tower, which adopts a spraying method to spray the high-temperature water in the bottom water storage tank 7 after heat exchange with the medium onto the heat dissipation filler 41 for cooling, and then sends it to the heat exchange device 61 below to exchange heat with the medium. It has the characteristics of open circulation, simple overall structure, and adopts low-cost heat dissipation filler 41, and the cost is lower; in addition, by setting a plurality of groups of heat exchange devices 61 connected in sequence to perform multiple heat exchanges on the cooling medium, the flow of the medium is greatly lengthened, the heat exchange effect is improved, and the heat of the medium is effectively reduced. At the same time, the medium is inside the heat exchanger outside the system throughout the whole process, and is not in contact with the external environment throughout the whole process, realizing a closed cycle, without loss, and will not be polluted by the external environment, ensuring the purity of the medium, so it can also be applied to toxic gases, volatile liquids or other liquids that cannot be exposed to the air, and has good practicality.

[0042] Therefore, the present application combines the advantages of low construction cost of an open cooling tower and closed circulation of a closed cooling tower, and forms a structure similar to an open cooling tower by setting an air outlet unit 2, a spray unit 3, a heat dissipation unit 4 and a water storage tank 7, and adds a heat exchange unit 6 therein, and dissipates heat from the heat exchange device 61 in the heat exchange unit 6 through the air outlet unit 2, the spray unit 3, the heat dissipation unit 4 and the water storage tank 7, and the cooling medium is fully closed circulated in the heat exchange device 61 without contacting the external environment; in addition, due to the use of heat dissipation fillers with a high porosity, its wind resistance is much lower than the wind resistance of traditional coils in a closed cooling tower. Under the same refrigeration capacity conditions, the power consumption of the cooling tower can be greatly reduced, energy consumption can be saved, and the operating cost can be effectively reduced; therefore, while retaining a closed circulation, the present application greatly reduces construction cost and energy consumption, and can be applicable to the processing of a variety of media, with better practicality.

[0043] It is not limited that, in this embodiment, five spray pipes 31 are provided, and four spray heads 311 are provided at intervals on each spray pipe 31 . In specific implementation, the number of spray pipes 31 and the number of spray heads 311 can be adjusted as needed.

[0044] In addition, specifically, in this embodiment, a slider 312 is installed on the top of the nozzle 311, and the nozzle 311 is slidably installed on the spray pipe 31 through the slider 312, so that the distance between the nozzles 311 can be adjusted to ensure uniform spraying.

[0045] Please refer to Figures 6 to 8 In a non-limiting embodiment of the present invention, the heat exchange device 61 includes a plurality of U-shaped tubes 611, and the U-shaped tubes 611 are used for medium to pass through. The medium exchanges heat with the outside in the U-shaped tubes 611, and the whole process is closed and does not contact the external environment. Preferably, the plurality of U-shaped tubes 611 are placed vertically, distributed in rows, and are independent of each other and do not contact each other; preferably, the U-shaped tubes 611 in adjacent rows are staggered in the vertical direction (such as Figure 7 as shown) to obtain greater contact and heat dissipation space.

[0046] Please refer to Figure 8 In a non-limiting embodiment of the utility model, each U-shaped tube 611 includes a plurality of U-shaped inflection points 6111, thereby lengthening the process and improving the heat exchange effect. One end of the U-shaped tube 611 is an inlet for the medium to enter the U-shaped tube 611, and the other end is an outlet for the medium to be sent out of the U-shaped tube 611. Specifically, the U-shaped tube 611 is divided into two parts through the inflection point 6111, namely, a bend tube 6112 and a straight tube 6113. The straight tube 6113 and the bend tube 6112 can be disassembled, so that the overall process length of the U-shaped tube 611 can be adjusted.

[0047] Please refer to Figures 1 to 7In a non-limiting embodiment of the present invention, preferably, the heat exchange unit 6 includes two heat exchange devices 61, each heat exchange device 61 is provided with two liquid separation mechanisms 612, and the two liquid separation mechanisms 612 are arranged on the upper and lower sides of the heat exchange device 61, wherein the liquid separation mechanism 612 located on the upper side is connected to the inlet of each U-shaped tube 611, and the liquid separation mechanism 612 located on the lower side is connected to the outlet of each U-shaped tube 611, and the liquid separation mechanism 612 is provided with a plurality of holes connected to the inlet and outlet of the U-shaped tube 611, through the liquid separation mechanism 612, The delivered medium is evenly distributed to each U-shaped tube 611, and the medium that has completed heat exchange in all U-shaped tubes 611 is collected. The two heat exchange devices 61 are connected through a transfer pipeline 64, wherein one end of the transfer pipeline 64 is connected to the liquid separation mechanism 612 on the lower side of the first heat exchange device 61, and the other end is connected to the liquid separation mechanism 612 on the upper side of the other heat exchange device 61. The medium is transferred from one heat exchange device 61 to another heat exchange device 61 through the transfer pipeline 64, thereby realizing multiple heat exchanges and enhancing the heat exchange effect.

[0048] It is not limited that two heat exchange devices 61 are provided in this embodiment. In specific implementation, the number of heat exchange devices 61 can be adjusted according to actual needs, and adjacent heat exchange devices 61 can be connected through transfer pipelines 64.

[0049] Please refer to Figures 1 to 7 In a non-limiting embodiment of the utility model, the liquid inlet channel 62 and the liquid outlet channel 63 are connected to the liquid separation mechanism 612, the liquid inlet channel 62 is connected to the liquid separation mechanism 612 located on the lower side of the first heat exchange device 61, and the medium to be cooled is sent into the first heat exchange device 61, and the liquid outlet channel 63 is connected to the liquid separation mechanism 612 located on the upper side of the other heat exchange device 61, so as to return the medium after heat exchange by the two heat exchange devices 61 to the system.

[0050] Please refer to Figures 1 to 5 In a non-limiting embodiment of the utility model, the spray unit 3 includes a water distribution mechanism 32, which is arranged on one side of the plurality of spray pipes 31 and connected to one end of the spray pipe 31 for water inlet. The water distribution mechanism 32 evenly distributes the delivered water to each spray pipe 31 to ensure more uniform spraying.

[0051] Please refer to Figures 1 to 5 In a non-limiting embodiment of the utility model, a water supply pipeline 11 is provided on one side of the shell 1, and a power device 12 is installed on the water supply pipeline 11. The two ends of the water supply pipeline 11 are respectively connected to the water distribution mechanism 32 and the water storage tank 7. The power device 12 is installed on the water supply pipeline 11. Through the power device 12, the water in the bottom water storage tank 7 is sent to the water distribution device, sprayed out through the nozzle 311 on the spray pipe 31, and then returned to the water storage tank 7 to realize circulation.

[0052] For details, please refer to Figures 1 to 5 A maintenance ladder 13 is provided on one side of the shell 1 away from the water pipeline 11 to facilitate the staff to inspect and maintain the cooling tower.

[0053] Please refer to Figure 5 In a non-limiting embodiment of the utility model, a water replenishment port 71 is provided on one side of the water storage tank 7. Since part of the water evaporates after heat exchange with the heat exchange device 61 and is sent out with the air under the action of the fan 21, a certain amount of water loss will be caused to the water storage tank 7. The water replenishment port 71 is used to replenish water to the water storage tank 7 to ensure the normal water circulation inside the cooling tower.

[0054] Please refer to Figures 1 to 5 In a non-limiting embodiment of the utility model, an air inlet unit 5 is provided between the heat dissipation unit 4 and the heat exchange unit 6. The air inlet unit 5 includes a cavity. The water after heat dissipation by the heat dissipation filler 41 passes through the cavity and falls into the heat exchange device 61 below. The air inlet unit 5 includes a plurality of air inlets 51. The plurality of air inlets 51 are provided on the peripheral surface of the shell 1. External cold air enters the interior of the cooling tower through the air inlets 51. Cooperating with the fan 21 at the top, the circulation of air inside the cooling tower is realized, the internal hot air is discharged in time, and the heat dissipation effect is improved.

[0055] A fence or shutter structure (not shown in the figure) is provided on the air inlet 51 to prevent foreign matter or impurities from entering the interior of the cooling tower through the air inlet 51 .

[0056] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A composite structure cooling tower, comprising a shell, characterized in that: Also includes: An air outlet unit is arranged on the top of the housing, and the air outlet unit includes a plurality of fans; A spray unit is disposed below the air outlet unit, the spray unit comprising a plurality of spray pipes disposed at intervals, and a plurality of spray heads are distributed at intervals on each of the spray pipes; A heat dissipation unit is disposed below the spray unit, and the heat dissipation unit includes multiple layers of heat dissipation fillers; A heat exchange unit is arranged below the heat dissipation unit, the heat exchange unit comprises a liquid inlet channel, a liquid outlet channel and a plurality of heat exchange devices, a transfer pipeline is arranged between adjacent heat exchange devices, and the plurality of heat exchange devices are sequentially connected through the transfer pipeline, wherein the liquid inlet channel is connected to the heat exchange device at the starting end, and the liquid outlet channel is connected to the heat exchange device at the tail end; A water storage tank is arranged below the heat exchange unit, and the water storage tank is connected to the spray unit through a pipeline.

2. The composite structure cooling tower according to claim 1, characterized in that: The heat exchange device comprises a plurality of U-shaped tubes, and the plurality of U-shaped tubes are arranged in parallel.

3. The composite structure cooling tower according to claim 2, characterized in that: Each of the U-shaped tubes includes a plurality of U-shaped inflection points, and both ends of each of the U-shaped tubes are provided with an inlet and an outlet.

4. The composite structure cooling tower according to claim 3, characterized in that: The heat exchange device is provided with two liquid separation mechanisms, which are arranged at the upper and lower sides of the heat exchange device, wherein one of the liquid separation mechanisms is connected to the inlet of each U-shaped tube, and the other liquid separation mechanism is connected to the outlet of each U-shaped tube.

5. The composite structure cooling tower according to claim 4, characterized in that: Both ends of the transfer pipeline are respectively connected to one of the liquid separation mechanisms of two adjacent heat exchange devices.

6. The composite structure cooling tower according to claim 5, characterized in that: The liquid inlet channel and the liquid outlet channel are connected to the liquid separation mechanism.

7. The composite structure cooling tower according to claim 1, characterized in that: The spray unit includes a water distribution mechanism, and the water distribution mechanism is connected to each of the spray pipes.

8. The composite structure cooling tower according to claim 7, characterized in that: A water delivery pipeline is provided on one side of the shell, a power device is installed on the water delivery pipeline, and two ends of the water delivery pipeline are respectively connected to the water distribution mechanism and the water storage tank.

9. The composite structure cooling tower according to claim 1, characterized in that: A water replenishment port is provided on one side of the water storage tank.

10. The composite structure cooling tower according to claim 1, characterized in that: An air inlet unit is provided between the heat dissipation unit and the heat exchange unit. The air inlet unit includes a plurality of air inlets, and the plurality of air inlets are provided on the peripheral side surface of the shell.

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