Heat dissipation device and method integrating air cooler and cooling tower

Abstract

The invention discloses a cooling tower and air cooler integrated heat dissipation device and method. The cooling tower and air cooler integrated heat dissipation device comprises a supporting frame, a cooling tower module and an air cooler module. The cooling tower module and the air cooler module are arranged in the supporting frame, and the cooling tower module comprises a first fan, a first heat exchange tube bundle, a cooling tower liquid inlet and a cooling tower liquid outlet; the first fan is arranged at the top of the supporting frame, the first heat exchange tube bundle is horizontally arranged below the first fan, and the cooling tower liquid inlet and the cooling tower liquid outlet are formed in the two ends of the first heat exchange tube bundle; the air cooler module comprises a second fan, a second heat exchange tube bundle, an air cooler liquid outlet and an air cooler liquid inlet, the second fan is arranged at the top of the air cooler module, the second heat exchange tube bundle is arranged below the second fan, and the air cooler liquid outlet and the air cooler liquid inlet are formed in the two ends of the second heat exchange tube bundle respectively. The cooling tower and the air cooler are structurally integrated in the container so as to adapt to complex environment working conditions, modular design is achieved, and deployment is rapid.

Description

Technical Field

[0001] The present application relates to the field of refrigeration and heat dissipation technology, and in particular, to a heat dissipation device and method integrating an air cooler and a cooling tower. Background Art

[0002] With the advancement of science and technology, the total power consumption of various industrial equipment continues to increase. As these devices consume electricity, they also generate heat. If this heat accumulates within the equipment's materials, it will inevitably cause irreversible damage to the materials through thermal stress. Therefore, it is imperative to remove this heat from these devices to the environment through liquid cooling systems. Consequently, the demand for liquid cooling systems is increasing year by year.

[0003] Traditional liquid cooling systems are divided into liquid-cooled internal cooling systems (hereinafter referred to as internal cooling systems) and liquid-cooled external cooling systems (hereinafter referred to as external cooling systems). System equipment located inside a building is generally classified as internal cooling systems, while system equipment located outside a building is generally classified as external cooling systems. Commonly used equipment in external cooling systems is refrigeration units, cooling towers, and air coolers (hereinafter referred to as air coolers). Air coolers and cooling towers have higher heat exchange efficiency than refrigeration units in low ambient temperatures (such as at night and in winter). In areas where water resources are scarce, air coolers can conserve water resources compared to cooling towers. However, for the same heat dissipation capacity, air coolers require more floor space than cooling towers.

[0004] Therefore, the existing external cooling system layout with a single air cooler occupies a large area, and the layout with a single cooling tower is not suitable for operation in low ambient temperature conditions. Therefore, there is an urgent need to invent a highly integrated, energy-efficient heat dissipation external cooling device that is easy to deploy and quick.

[0005] Prior art document 1 (CN204177243U) discloses a water-saving closed-loop industrial circulating water dry-wet combined cooling tower, comprising two sets of symmetrically arranged dry-wet combined coolers, each set of which includes: a finned tube air cooler, an evaporative cooler, and a circulating water loop connecting the finned tube air cooler and the evaporative cooler; the circulating water loop includes: a circulating water inlet pipe, a circulating water outlet pipe, a series pipe, a bypass pipe, and a bypass valve; the finned tube air cooler and the evaporative cooler are connected through the series pipe, and the end of the series pipe is connected to the circulating water outlet pipe through the bypass valve and the bypass pipe. However, the horizontal arrangement of the tube bundle results in a small heat exchange area, a poor water-saving effect, a large equipment volume, and a long installation period.

[0006] Prior art document 2 (CN109217632A) discloses an air cooler-cooling tower cooling system for a DC transmission converter valve. A temperature sensor is provided on the coolant output pipe of the air cooler subsystem for real-time detection of the temperature of the coolant flowing out of the coolant output pipe of the air cooler subsystem. The control module controls whether to put the closed cooling tower into operation according to the collected temperature information. The coordinated operation of the air cooler and the closed cooling tower is used to realize the heat dissipation of the converter valve and improve the heat dissipation efficiency. However, it is only the use of the traditional air cooler and the cooling tower in series. They are still two independent systems that need to be arranged separately, occupying a large area, large on-site installation workload, and long construction period. Summary of the Invention

[0007] In order to solve the deficiencies in the prior art, the present invention provides a heat dissipation device integrating an air cooler and a cooling tower, which has a high degree of integration and is easy to deploy quickly.

[0008] The present invention adopts the following technical solutions.

[0009] A first aspect of the present invention discloses a heat dissipation device integrating an air cooler and a cooling tower, comprising: a support frame, a cooling tower module, and an air cooler module; the cooling tower module and the air cooler module are both arranged in the support frame, and the cooling tower module comprises a first fan, a first heat exchange tube bundle, a cooling tower liquid inlet, and a cooling tower liquid outlet; the first fan is arranged at the top of the support frame, the first heat exchange tube bundle is arranged horizontally below the first fan, and the cooling tower liquid inlet and the cooling tower liquid outlet are arranged at both ends of the first heat exchange tube bundle for heat exchange in the cooling tower module;

[0010] The air cooler module includes a second fan, a second heat exchange tube bundle, an air cooler liquid outlet, and an air cooler liquid inlet. The second fan is arranged at the top of the air cooler module. The second heat exchange tube bundle adopts a V-shaped arrangement and is arranged below the second fan. The air cooler liquid outlet and the air cooler liquid inlet are respectively arranged at both ends of the second heat exchange tube bundle for heat exchange in the air cooler module.

[0011] The air cooler liquid outlet and the cooling tower liquid inlet are connected in series, and the system liquid first enters the air cooler module and then enters the cooling tower module for heat exchange in the liquid cooling system.

[0012] Preferably, the cooling tower module further comprises a water receiving tray and a spray pump;

[0013] The water receiving tray is arranged below the first heat exchange tube bundle for collecting and storing spray water; the spray pump is arranged at the bottom of the support frame and connected to the spray device for spraying cooling water to the first heat exchange tube bundle.

[0014] Preferably, the spray device is detachably mounted on a spray device installation area of ​​the cooling tower module, and the spray device installation area is arranged between the first heat exchange tube bundle and the first fan.

[0015] Preferably, a water collecting device installation area is provided between the spray device installation area and the first fan; the water collecting device is detachably installed in the water collecting device installation area of ​​the cooling tower module to reduce the evaporation rate of the cooling tower.

[0016] Preferably, the cooling tower module further comprises a first heat exchange tube bundle elbow, which is arranged at the end of the first heat exchange tube bundle; the air cooler module further comprises a second heat exchange tube bundle elbow, which is arranged at the end of the second heat exchange tube bundle.

[0017] Preferably, first grilles are provided on the left and right sides of the support frame, and second grilles are provided on the front and rear sides thereof. The first grilles and the second grilles are provided to reduce the corrosion of the air cooler module caused by water drifting from the cooling tower module.

[0018] Preferably, the system liquid enters the air cooler at the liquid inlet, enters the air cooler module, flows through the air cooler water distributor for liquid equalization, and turns to flow through the second heat exchange tube bundle, then turns through the elbow of the second heat exchange tube bundle, passes through the air cooler liquid outlet, enters the cooling tower module from the cooling tower liquid inlet, then passes through the first heat exchange tube bundle, then turns through the elbow of the first heat exchange tube bundle, and finally flows out of the system through the cooling tower liquid outlet.

[0019] Preferably, the heat dissipation device further includes a fan protection net, which is arranged on the surface of the first fan to prevent debris from entering the interior of the fan.

[0020] The second aspect of the present invention discloses a heat dissipation method, based on the heat dissipation device integrating an air cooler and a cooling tower,

[0021] When the ambient temperature is below 5°C, the spray pump stops working and the equipment enters low-temperature dry mode. The system controls the heat exchange of the equipment by controlling the number of starts and stops of the fans in the cooling tower module and the air cooler module.

[0022] When the ambient temperature is higher than 36°C, the spray pump keeps working and the equipment enters high-temperature and humidity mode. The system controls the heat exchange of the equipment by prioritizing the number of starts and stops of the second fan, and then adjusts the first fan to increase the heat exchange.

[0023] When the ambient temperature is between 5 and 36°C, the equipment operates in normal temperature and humidity mode. When operating in normal temperature and humidity mode, the system controls the heat exchange of the equipment by prioritizing the number of starts and stops of the second fan, and then adjusts the first fan to increase the heat exchange.

[0024] Preferably, when the equipment is operating in normal temperature and humidity mode, the operating cost of the spray pump is U = O*S + O*T*R, the operating cost of the second fan is V = Q*S, and the operating cost of the first fan is W = P*S; wherein O is the operating time of the spray pump, P is the operating time of the cooling tower fan, the value of the air cooler fan operating time Q, the water fee R for the corresponding date, the electricity fee S for different time periods on the corresponding date, and T is the flow rate of the spray pump;

[0025] When U>V>W, when the heat dissipation decreases, first turn off the spray pump, then turn off the second fan, and finally adjust the first fan;

[0026] When U>W>V or W>V>U or W>U>V, when the heat dissipation decreases, first turn off the spray pump, then turn off the first fan, and finally adjust the second fan;

[0027] When V>W>U or V>U>W, when the heat dissipation decreases, first turn off the second fan, then turn off the spray pump, and finally adjust the first fan.

[0028] The beneficial effect of the present invention is that, compared with the prior art,

[0029] 1. The present invention designs a compact heat dissipation device. The main frame of the heat dissipation device is placed in a standard container for easy deployment and transportation. The container frame is a 20-foot container, which can be easily and quickly installed and deployed.

[0030] 2. The air cooler module and the cooling tower module are arranged in the container of the present invention. The modules are arranged in series to minimize the various sizes of the equipment to achieve a highly integrated design.

[0031] 3. The tube bundle of the present invention adopts a V-shaped arrangement, with a large heat exchange area and obvious water-saving effect. The equipment adopts a container arrangement. At the same time, the spray pump and fan are controlled by a control device, so that the equipment can use the optimal heat exchange mode under different working conditions, and the water-saving effect is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the heat dissipation device of the present invention;

[0033] Figure 2 It is a schematic diagram of the installation of the heat dissipation device and the grille in the present invention;

[0034] Figure 3 A front view of the heat dissipation device of the present invention;

[0035] Figure 4 It is a left side view of the heat dissipation device of the present invention;

[0036] Figure 5 It is a right side view of the heat dissipation device of the present invention;

[0037] Figure 6 is a bottom view of the heat dissipation device of the present invention;

[0038] Figure 7 It is a schematic diagram of the liquid flow direction of the heat dissipation device of the present invention;

[0039] Figure 8 It is a structural diagram of multiple heat dissipation devices used in parallel.

[0040] Reference numerals in the figures:

[0041] 1. Support frame; 101. First grid; 102. Second grid;

[0042] 2. Cooling tower module; 201. First fan; 202. First heat exchange tube bundle; 203. Spray device installation area; 204. Cooling tower water receiving tray; 205. First heat exchange tube bundle elbow; 206. Water collection device installation area; 207. Cooling tower liquid inlet; 208. Cooling tower liquid outlet; 209. Spray pump;

[0043] 3. Fan protection net;

[0044] 4. Air cooler module; 401. Second fan; 402. Second heat exchange tube bundle; 403. Second heat exchange tube bundle elbow; 404. Air cooler liquid outlet; 405. Air cooler liquid inlet; 406. Air cooler water distributor;

[0045] 5. Spraying device;

[0046] 6. Water collection device. DETAILED DESCRIPTION

[0047] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described in this application are only part of the embodiments of the present invention, not all of them. Based on the spirit of the present invention, other embodiments obtained by ordinary technicians in this field without making creative efforts are all within the scope of protection of the present invention.

[0048] like Figure 1-Figure 5 As shown, embodiment 1 of the present invention provides a heat dissipation device integrating an air cooler and a cooling tower, comprising: a support frame 1, a cooling tower module 2, and an air cooler module 4. The cooling tower module 2 and the air cooler module 4 are both disposed in the support frame 1, are interconnected, and are located on opposite sides of the support frame 1.

[0049] In a preferred but non-limiting embodiment of the present invention, the volume ratio of the air cooler module 4 to the cooling tower module 2 in the container is 2:3.

[0050] The cooling tower module 2 includes a first fan 201, a first heat exchange tube bundle 202, a water receiving tray 204, a first heat exchange tube bundle elbow 205, a cooling tower liquid inlet 207, a cooling tower liquid outlet 208, and a spray pump 209. The first fan 201 is installed on the top of the support frame 1, with its air inlet and outlet both arranged in a vertical direction.

[0051] The fan protection net 3 is set on the surface of the first fan 201 to prevent personnel from contacting the high-speed rotating fan blades, avoid accidental injuries during operation, maintenance or inspection, intercept external debris (such as leaves, plastic, tools, birds or small animals, etc.) to prevent them from being sucked into the fan, and avoid blade damage, motor jamming or equipment failure.

[0052] The first heat exchange tube bundle 202 is formed by fixing a large number of straight tubes and is horizontally arranged below the first fan 201. A first heat exchange tube bundle elbow 205 is provided at the end of the first heat exchange tube bundle 202;

[0053] One end of the cooling tower liquid inlet 207 is connected to the first heat exchange tube bundle 202, and the other end is connected to the air cooler liquid outlet 404; one end of the cooling tower liquid outlet 208 is connected to the first heat exchange tube bundle 202, and the other end is connected to the circulating water pipeline to transport the cooled circulating water to the cooled equipment;

[0054] like Figure 6 As shown, the spray pump 209 is arranged at the bottom of the support frame 1 and is connected to the spray device 5 for spraying cooling water to the first heat exchange tube bundle 202 .

[0055] The water receiving tray 204 is disposed below the first heat exchange tube bundle 202 and is used to collect and store spray water.

[0056] In a preferred but non-limiting embodiment of the present invention, two first fans 201 are arranged horizontally in parallel, and the size of the first heat exchange tube bundle 202 is adapted to the total size of the two first fans 201 .

[0057] Furthermore, the support frame 1 is preferably made of weathering steel. In order to meet the requirements of sea and land transportation, the dimensions of the support frame 1 are: width (A value) is 2438 mm, length (B value) is 6058 mm, and height (C value) is 2896 mm.

[0058] like Figure 3 As shown, a spray device installation area 203 is provided between the first heat exchange tube bundle 202 and the first fan 201. The spray device 5 is detachably installed in the spray device installation area 203 of the cooling tower module 2, and is used to evenly distribute the spray water pumped by the spray pump 209, so that the water and the first heat exchange tube bundle 202 are evenly exchanged.

[0059] Furthermore, a water collection device installation area 206 is provided between the spray device installation area 203 and the first fan 201. The water collection device 6 is removably mounted to the water collection device installation area 206 of the cooling tower module 2 to reduce the evaporation rate of water in the cooling tower water pan. Both the spray device 5 and the water collection device 6 function to conserve water resources when the cooling tower is operating in wet mode.

[0060] Furthermore, if Figure 1-5 As shown, the length (E value) of the first heat exchange tube bundle 202 placed in the A and B areas is 3300≤E≤4000mm, preferably E=3600mm; the width (F value) is 2000≤F≤2400mm, preferably F=2200mm; and the thickness (G value) is 400≤G≤900mm, preferably G=650mm.

[0061] Combine Figure 1-5 As shown, the air cooler module 4 includes: a second fan 401 , a second heat exchange tube bundle 402 , a second heat exchange tube bundle elbow 403 , an air cooler liquid outlet 404 and an air cooler liquid inlet 405 .

[0062] Among them, the second fan 401 is arranged at the top of the air cooler module 4. The size of the second fan 401 is smaller than the first fan 201, and the setting height of the second fan 401 is slightly lower than the first fan 201. The purpose is that during transportation, the second fan 401 can be transported without being disassembled, while the first fan 201 adopts a detachable design. During transportation, the first fan 201 can be placed in the water tray 204 position and installed on site without taking up additional space.

[0063] Preferably, four second fans 401 are arranged horizontally, and the four second fans 401 are arranged in a 2X2 rectangle, which can maximize the fan air volume within the effective space. The single fan air volume of the cooling tower is 40000~60000m 3 / h, preferably 50000m 3 / h. The air volume of the air cooler fan is 20000~30000m 3 / h, preferably 25000m 3 / h.

[0064] The second heat exchange tube bundle 402 is formed by fixing a large number of straight tubes and is arranged below the second fan 401 in a V-shaped arrangement, that is, the middle part of the second heat exchange tube bundle 402 is folded upward, so that the second heat exchange tube bundle 402 is V-shaped as a whole, which increases the heat exchange area.

[0065] A second heat exchange tube bundle elbow 403 is provided at the end of the second heat exchange tube bundle 402. The second heat exchange tube bundle elbow 403 is connected to the fin tube and is used to connect heat exchange tubes between different tube rows.

[0066] The air cooler liquid outlet 404 is provided at one end of the second heat exchanger 402 and is connected to the second heat exchanger 402 ; the air cooler liquid inlet 405 is provided at the other end of the second heat exchanger 402 and is connected to the second heat exchanger 402 .

[0067] The air cooler liquid outlet 404 and the cooling tower liquid inlet 207 are connected by a metal hose to ensure that the cooling tower module and the air cooler module are connected in series.

[0068] like Figure 2 As shown, a first grid 101 is provided on the left and right sides of the support frame 1 in the main viewing direction, and a second grid 102 is provided on the front and back sides of the support frame 1 in the main viewing direction. The first grid 101 and the second grid 102 are provided to reduce the corrosion of the air cooler module 4 caused by water floating from the cooling tower module.

[0069] Among them, the grid layout interface of the surface where the air cooler module 4 contacts the cooling tower module 1 is Figure 3 The D section in the grille needs to be opened during production to avoid the pipes passing through it.

[0070] The side grille length (J value) of the cooling tower is 3300≤J≤4000mm, preferably J=3600mm; the height (I value) is 2000≤I≤2400mm, preferably F=2100mm; the thickness (H value) is 30≤H≤100mm, preferably H=65mm. The back grille length (K value) of the cooling tower is 2000≤K≤2400mm, preferably K=2100mm.

[0071] like Figure 7 As shown, the system inlet liquid enters the air cooler liquid inlet 405, enters the air cooler module, passes through the air cooler water distributor 406 for liquid equalization, and turns to flow through the second heat exchange tube bundle 402, then passes through the second heat exchange tube bundle elbow 403 for diversion, passes through the air cooler liquid outlet 404, enters the cooling tower module at the cooling tower liquid inlet 207, then passes through the first heat exchange tube bundle 202, then passes through the first heat exchange tube bundle elbow 205 for diversion, and finally flows out of the system through the cooling tower liquid outlet 208.

[0072] In a preferred but non-limiting embodiment of the present invention, in terms of tube diameter, the outer diameter of the air cooler heat exchange tube can be selected from 12.7mm, 15.88mm, and 25mm, and the cooling tower heat exchange tube preferably has three diameters of 19mm, 22mm, and 25mm.

[0073] In terms of material: the first heat exchange tube is made of stainless steel, and the second heat exchange tube can be made of stainless steel or copper. The second heat exchange tube is preferably made of stainless steel in a working environment with high environmental corrosion, and is preferably made of copper in a working environment with high heat exchange requirements.

[0074] The first heat exchange tube and the second heat exchange tube are installed in the air cooler module and the cooling tower module respectively in the form of tube bundles. Figure 3 As shown, there are gaps between the heat exchange tubes for air circulation, and the shortest spacing L on the outer surface of the straight heat exchange tubes is 1≤L≤5mm, preferably L=2mm.

[0075] The inner diameters of the air cooler liquid inlet, the air cooler liquid outlet, the cooling tower liquid inlet, and the cooling tower liquid outlet are all D, 80≤D≤100mm, preferably D=90mm.

[0076] The support frame (1) is preferably a standard 20-foot or 40-foot container.

[0077] Embodiment 2 of the present invention provides a heat dissipation method integrating an air cooler and a cooling tower. The device controls the cooling tower module 2, the air cooler module 4, and the spray pump 209, the first fan 201, the spray pump 209, and the second fan 401 through the terminal to adjust the heat dissipation, save electricity and water resources.

[0078] The control mechanism is described in detail as follows: Equipment operation is divided into low-temperature dry mode operation, normal-temperature wet mode operation, and high-temperature wet mode operation.

[0079] Low temperature refers to a dry-bulb temperature of 5°C, and high temperature refers to a dry-bulb temperature of 36°C. When the ambient temperature drops below 5°C, the spray pump stops operating and the equipment enters low-temperature dry mode. The system controls the heat exchange capacity of the equipment by controlling the number of fans started and stopped in cooling tower module 2 and air cooler module 4.

[0080] When the ambient temperature is higher than 36°C, the spray pump 209 keeps working and the equipment enters the high temperature and humidity mode. The system controls the heat exchange of the equipment by preferentially controlling the number of starts and stops of the second fan 401. If the second fan 401 is fully opened and the heat dissipation is still low, the first fan 201 is adjusted to increase the heat exchange.

[0081] When the ambient temperature is between 5 and 36°C, the device operates in normal temperature and humidity mode. During normal temperature and humidity mode, during initial operation, the system controls the heat exchange of the device by prioritizing the start and stop times of the second fan 401. If the second fan 401 is fully open and the heat dissipation is still low, the first fan 201 is adjusted to increase the heat exchange.

[0082] At the same time, the back-end system records the values ​​of the date N, the spray pump operating time O, the cooling tower fan operating time P, the air cooler fan operating time Q, the water cost R for the corresponding date, the electricity costs S1, S2, ..., S24 (the subscripts represent the electricity costs for different time periods, divided into 24 hours), and the spray pump flow rate T, and stores them in the back-end database. After the device has been in operation for one year, operating in normal temperature and humidity mode, it will perform intelligent calculations, and the control system will adjust and feedback on an hourly basis. When the operating cost of the spray pump is U = O * S + O * T * R, the operating cost of the second fan is V = Q * S, and the operating cost of the first fan is W = P * S.

[0083] When the system calculates historical data and obtains U>V>W, when the heat dissipation decreases, it will first shut down the spray pump, then shut down the second fan, and finally adjust the first fan.

[0084] When the system calculates historical data and obtains U>W>V or W>V>U or W>U>V, when the heat dissipation decreases, the spray pump is turned off first, then the first fan, and finally the second fan is adjusted.

[0085] When the system calculates historical data and obtains V>W>U or V>U>W, when the heat dissipation decreases, it will first shut down the second fan, then shut down the spray pump, and finally adjust the first fan.

[0086] The above calculation method maximizes energy savings by rationally adjusting equipment based on historical data. Equipment adjustment intervals are typically 1 to 24 hours, with 8 hours being preferred. Both shutdown and switching operations utilize soft switching, with gradual adjustments to minimize damage to equipment caused by frequent switching.

[0087] The 20-foot container device disclosed in this patent has a heat exchange capacity of 1800kW for a single set of equipment (the air cooler is fully loaded at 800kW and the cooling tower is fully loaded at 1000kW). If the customer's heat exchange capacity requirement is 7200kW, then the heat exchange capacity can be increased according to the following formula: Figure 8 As shown, four sets of equipment are connected in parallel to meet customer requirements.

[0088] The beneficial effect of the present invention is that, compared with the prior art,

[0089] 1. The present invention designs a compact heat dissipation device. The main frame of the heat dissipation device is placed in a standard container for easy deployment and transportation. The container frame is a 20-foot container, which can be easily and quickly installed and deployed.

[0090] 2. The air cooler module and the cooling tower module are arranged in the container of the present invention. The modules are arranged in series to minimize the various sizes of the equipment to achieve a highly integrated design.

[0091] 3. The tube bundle of the present invention adopts a V-shaped arrangement, with a large heat exchange area and obvious water-saving effect. The equipment adopts a container arrangement. At the same time, the spray pump and fan are controlled by a control device, so that the equipment can use the optimal heat exchange mode under different working conditions, and the water-saving effect is significantly improved.

[0092] 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, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A heat dissipation device integrating an air cooler and a cooling tower, comprising: A support frame (1), a cooling tower module (2) and an air cooler module (4); the cooling tower module (2) and the air cooler module (4) are both arranged in the support frame (1), characterized in that: The cooling tower module (2) comprises a first fan (201), a first heat exchange tube bundle (202), a cooling tower liquid inlet (207) and a cooling tower liquid outlet (208); the first fan (201) is arranged on the top of the support frame (1), the first heat exchange tube bundle (202) is horizontally arranged below the first fan (201), and the cooling tower liquid inlet (207) and the cooling tower liquid outlet (208) are arranged at both ends of the first heat exchange tube bundle (202) for heat exchange of the cooling tower module; The air cooler module (4) comprises a second fan (401), a second heat exchange tube bundle (402), an air cooler liquid outlet (404) and an air cooler liquid inlet (405); the second fan (401) is arranged at the top of the air cooler module (4); the second heat exchange tube bundle (402) is arranged in a V-shape and is arranged below the second fan (401); the air cooler liquid outlet (404) and the air cooler liquid inlet (405) are respectively arranged at two ends of the second heat exchange tube bundle (402) for heat exchange of the air cooler module (4); The air cooler liquid outlet (404) and the cooling tower liquid inlet (207) are connected in series, and the system liquid first enters the air cooler module (4) and then enters the cooling tower module (2) for heat exchange in the liquid cooling system.

2. The heat dissipation device integrating an air cooler and a cooling tower according to claim 1, characterized in that: The cooling tower module (2) further includes a water receiving tray (204) and a spray pump (209); The water receiving tray (204) is arranged below the first heat exchange tube bundle (202) for collecting and storing spray water; the spray pump (209) is arranged at the bottom of the support frame (1) and connected to the spray device (5) for spraying cooling water to the first heat exchange tube bundle (202).

3. The heat dissipation device integrating an air cooler and a cooling tower according to claim 2, characterized in that: The spray device (5) is detachably mounted on a spray device installation area (203) of the cooling tower module (2); the spray device installation area (203) is arranged between the first heat exchange tube bundle (202) and the first fan (201).

4. The heat dissipation device integrating an air cooler and a cooling tower according to claim 3, characterized in that: A water collecting device installation area (206) is provided between the spray device installation area (203) and the first fan (201); the water collecting device (6) is detachably installed on the water collecting device installation area (206) of the cooling tower module (2) to reduce the evaporation rate of the cooling tower.

5. The heat dissipation device integrating an air cooler and a cooling tower according to claim 1, characterized in that: The cooling tower module (2) further comprises a first heat exchange tube bundle elbow (205) arranged at the end of the first heat exchange tube bundle (202); the air cooler module (4) further comprises a second heat exchange tube bundle elbow (403) arranged at the end of the second heat exchange tube bundle (402).

6. The heat dissipation device integrating an air cooler and a cooling tower according to claim 1, characterized in that: The support frame (1) is provided with first grids (101) on both the left and right sides, and second grids (102) on both the front and rear sides. The first grids (101) and the second grids (102) are provided to reduce the corrosion of the air cooler module (4) caused by water flowing from the cooling tower module.

7. The heat dissipation device integrating an air cooler and a cooling tower according to claim 5, characterized in that: The system liquid enters the air cooler liquid inlet (405), enters the air cooler module, flows through the air cooler water distributor (406) for liquid equalization, and turns to flow through the second heat exchange tube bundle (402), then turns through the second heat exchange tube bundle elbow (403), passes through the air cooler liquid outlet (404), enters the cooling tower module from the cooling tower liquid inlet (207), passes through the first heat exchange tube bundle (202), then turns through the first heat exchange tube bundle elbow (205), and finally flows out of the system through the cooling tower liquid outlet (208).

8. The heat dissipation device integrating an air cooler and a cooling tower according to claim 1, characterized in that: The heat dissipation device further comprises a fan protection net (3) which is arranged on the surface of the first fan (201) to prevent debris from entering the interior of the fan.

9. A heat dissipation method, based on the heat dissipation device integrating an air cooler and a cooling tower according to any one of claims 1 to 8, characterized in that: When the ambient temperature is below 5°C, the spray pump stops working and the equipment enters low-temperature dry mode. The system controls the heat exchange of the equipment by controlling the number of starts and stops of the fans in the cooling tower module and the air cooler module. When the ambient temperature is higher than 36°C, the spray pump keeps working and the equipment enters high-temperature and humidity mode. The system controls the heat exchange of the equipment by prioritizing the number of starts and stops of the second fan, and then adjusts the first fan to increase the heat exchange. When the ambient temperature is between 5 and 36°C, the equipment operates in normal temperature and humidity mode. When operating in normal temperature and humidity mode, the system controls the heat exchange of the equipment by prioritizing the number of starts and stops of the second fan, and then adjusts the first fan to increase the heat exchange.

10. The heat dissipation method according to claim 9, wherein: When the equipment is operating in normal temperature and humidity mode, the operating cost of the spray pump is U = O*S + O*T*R, the operating cost of the second fan is V = Q*S, and the operating cost of the first fan is W = P*S; where O is the operating time of the spray pump, P is the operating time of the cooling tower fan, Q is the value of the air cooler fan operating time, R is the water fee for the corresponding date, S is the electricity fee for different time periods on the corresponding date, and T is the flow rate of the spray pump; When U>V>W, when the heat dissipation decreases, first turn off the spray pump, then turn off the second fan, and finally adjust the first fan; When U>W>V or W>V>U or W>U>V, when the heat dissipation decreases, first turn off the spray pump, then turn off the first fan, and finally adjust the second fan; When V>W>U or V>U>W, when the heat dissipation decreases, first turn off the second fan, then turn off the spray pump, and finally adjust the first fan.

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