Composite heat dissipation equipment and liquid cooling system

Abstract

The utility model relates to a composite heat dissipation device and a liquid cooling system. The liquid cooling system comprises the composite heat dissipation device. The composite heat dissipation equipment comprises a shell, at least one pre-cooling cavity is formed in the shell, a water blocking device is arranged in the pre-cooling cavity, so that the shell is divided into an air pre-cooling cavity and a surface cooling heat exchange cavity by the water blocking device, and liquid in the air pre-cooling cavity is isolated through the water blocking device so that airflow can penetrate through the water blocking device; the first cooling assembly comprises a filler, a water distributor and a circulating pump, at least part of the air pre-cooling cavity is filled with the filler, the water distributor is arranged in the air pre-cooling cavity, and the circulating pump is used for pumping water in the air pre-cooling cavity to the water distributor and spraying the water onto the filler, so that gas is cooled by liquid on the filler; and the second cooling assembly comprises a heat exchanger and a fan, the heat exchanger is arranged in the surface cooling heat exchange cavity, and the fan is arranged at an air outlet of the surface cooling heat exchange cavity. Therefore, the application scene universality of the product is improved, the water consumption is reduced, the heat dissipation efficiency is improved, the durability is ensured, and the application cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of liquid cooling, in particular to a composite heat dissipation device and a liquid cooling system. Background Art

[0002] Liquid cooling technology, as an innovative solution in the field of contemporary cooling, is becoming increasingly popular due to its high heat dissipation efficiency, low noise and other advantages. For example, in current data centers, liquid cooling systems can effectively ensure efficient heat dissipation of servers to maintain stable system operation. Common liquid cooling technology solutions in related technologies can be roughly divided into three types: dry cooler, cooling tower, and dry cooler with spray / wet film. However, all three solutions have certain shortcomings:

[0003] First, the dry cooler reduces the server water inlet temperature by exchanging heat between air and fluid on the fin surface. However, its heat exchange efficiency is limited by the outdoor temperature. When the ambient temperature exceeds a certain threshold, the dry cooler may not be able to effectively reduce the water temperature to the safe range required by the server, thereby increasing the risk of server downtime due to overheating. The application scenarios of dry coolers are poor in universality.

[0004] Secondly, both open and closed cooling towers have their advantages in heat dissipation capacity, but both have significant water consumption problems. Especially in areas with tight water resources, the large amount of water consumption of cooling towers has become a major obstacle to their deployment and continued operation. The water consumption of cooling towers is too large.

[0005] Furthermore, in actual applications, the direct impact of water droplets in the spraying method of the dry cooler can easily lead to scaling and corrosion on the fin surface, which not only reduces the heat exchange efficiency but also greatly shortens the service life of the fins. The dry cooler combined with the wet film solution will result in excessively high heat dissipation costs due to the high cost of the wet film itself and the short maintenance and replacement cycle. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a composite heat dissipation device and a liquid cooling system, which can solve the problems of poor universality of application scenarios, excessive water consumption, low heat dissipation efficiency, poor durability and excessively high application costs.

[0007] The first aspect of the utility model provides a composite heat dissipation device, which includes:

[0008] A shell, wherein at least one precooling chamber is provided on the shell, and a water retainer is provided in the precooling chamber, so that the water retainer separates the precooling chamber into an air precooling chamber and a surface cooling heat exchange chamber, and further the water retainer isolates the liquid in the air precooling chamber and allows the gas in the air precooling chamber to pass through and flow into the surface cooling heat exchange chamber;

[0009] a first cooling assembly, the first cooling assembly comprising a filler, a water distributor and a circulation pump, the filler filling at least a portion of the air precooling cavity, the water distributor being disposed in the air precooling cavity, the circulation pump being used to pump water in the air precooling cavity to the water distributor and spray it onto the filler, so that the liquid on the filler cools the gas; and

[0010] The second cooling component includes a heat exchanger and a fan. The heat exchanger is arranged in the surface cooling heat exchange chamber. The fan is arranged at the air outlet of the surface cooling heat exchange chamber. The gas flowing into the surface cooling heat exchange chamber flows through the heat exchanger for heat exchange and is blown out by the fan.

[0011] Preferably, the heat exchanger is abutted against the inner wall of the surface cooling heat exchange chamber, so that the heat exchanger, the water retainer and the inner wall of the surface cooling heat exchange chamber together enclose an area to be pre-cooled.

[0012] Preferably, the first cooling component further comprises a water collecting base, a water collecting tank is arranged on the water collecting base, the pump suction end of the circulating pump is connected to the water collecting tank, and the pump outlet end of the circulating pump is connected to the water distributor.

[0013] Preferably, the first cooling component further includes a filter, and the pump outlet of the circulation pump is connected to the water distributor through the filter.

[0014] Preferably, the water distributor comprises a liquid separation manifold and a plurality of spray heads, the liquid separation manifold is connected to the circulation pump, the liquid separation manifold is connected to each of the spray heads, and each of the spray heads faces the packing.

[0015] Preferably, the heat exchanger includes a fin heat exchanger, a water outlet is provided at the bottom of the fin heat exchanger, a water inlet is provided at the top of the fin heat exchanger, liquid is introduced into the fin heat exchanger through the water inlet, so that the liquid exchanges heat with the air passing through the fin heat exchanger, and then the liquid is discharged from the fin heat exchanger through the water outlet.

[0016] Preferably, the air precooling chamber is provided with two air inlets, and central axes of the two air inlets intersect.

[0017] Preferably, an air outlet is provided on the surface cooling heat exchange cavity, and the centerline axis of the air outlet intersects with the central axis of the heat exchanger.

[0018] Preferably, the water retainer comprises a frame and a plurality of water retaining plates, each of the water retaining plates is arranged at equal distances along a straight line, and an air passage interval is defined between two adjacent water retaining plates.

[0019] The second aspect of the utility model also provides a liquid cooling system, which includes a primary side circuit, a secondary side circuit, a liquid cooling cabinet and the composite heat dissipation device described in the above technical solution, wherein the primary side circuit and the secondary side circuit are both connected to the liquid cooling cabinet, and the heat exchanger is connected to the primary side circuit.

[0020] The implementation of this utility model has the following beneficial effects:

[0021] The utility model relates to a composite heat dissipation device and a liquid cooling system, wherein the liquid cooling system comprises the composite heat dissipation device; on the composite heat dissipation device, through a first cooling component of an air precooling cavity and a second cooling component of a surface cooling heat exchange cavity, the device can selectively enable the settings of the air precooling cavity and the surface cooling heat exchange cavity according to application requirements, so that the product can enable the surface cooling heat exchange cavity alone for dry cooling according to actual application requirements, or simultaneously start the air precooling cavity and the surface cooling heat exchange cavity for composite cooling, so that the device is not only suitable for conventional environments, but also can effectively adapt to a variety of complex working conditions, such as high temperature, high humidity or dusty working conditions, which greatly expands its application range and improves the environmental adaptability and versatility of the device.

[0022] In the first cooling component, the packing, water distributor and circulating pump work together to form an efficient gas-liquid contact interface, enhance the heat exchange process, effectively improve the heat dissipation rate, and avoid the high cost caused by setting up a wet film, reducing the equipment cost and daily operation and maintenance costs. The heat exchanger and fan in the surface cooling heat exchange cavity cooperate to further accelerate the transfer and dissipation of heat, further ensuring the efficient heat dissipation performance of the equipment.

[0023] The water retainer can effectively block the liquid and ensure smooth flow of gas, reduce unnecessary water loss during heat dissipation, and greatly reduce water consumption. At the same time, the water retainer can also prevent liquid from adhering to the heat exchanger, prevent blockage or corrosion of the heat exchanger, improve the durability of the equipment and ensure the heat exchange efficiency of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0025] Figure 1 It is a schematic diagram of the structure of the composite heat dissipation device in some embodiments of the utility model;

[0026] Figure 2 It is a schematic structural diagram of a water retainer in some embodiments of the utility model. DETAILED DESCRIPTION

[0027] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0028] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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.

[0030] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integrated 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 this utility model can be understood according to specific circumstances.

[0031] Figure 1 The composite heat dissipation device 10 in some embodiments of the present invention is shown. The composite heat dissipation device 10 is used to transfer the heat of the cooling liquid to the outside, so that the cooling liquid can be reused after being cooled.

[0032] The composite heat dissipation device 10 includes a housing 1, a first cooling assembly 2 and a second cooling assembly 3, wherein the first cooling assembly 2 and the second cooling assembly 3 are both arranged on the housing 1. The housing 1 is used to install the first cooling assembly 2 and the second cooling assembly 3 on the one hand, and is also used to guide the flow of gas on the other hand. The first cooling assembly 2 is used to cool the gas, and the second cooling assembly 3 is used to exchange heat between the gas and the cooling liquid to cool the liquid.

[0033] like Figure 1 As shown, at least one precooling chamber 11 is provided on the shell 1, and a water retainer 12 is arranged in the precooling chamber 11, so that the water retainer 12 divides the shell 1 into an air precooling chamber 111 and a surface cooling heat exchange chamber 112, and then the water retainer 12 isolates the liquid in the air precooling chamber and allows the gas in the air precooling chamber 111 to pass through and flow into the surface cooling heat exchange chamber 112.

[0034] It can be understood that the precooling chamber 11 allows gas to flow therein, and the water retainer 12 is used to isolate the first cooling assembly 2 from producing liquid, but the gas can continue to flow through the water retainer 12. The air precooling chamber 111 is used to install the first cooling assembly 2, and the surface cooling heat exchange chamber 112 is used to install the second cooling assembly 3.

[0035] The first cooling component 2 includes a packing 21, a water distributor 22 and a circulating pump 23. The packing 21 fills at least a portion of the air precooling chamber 111. The water distributor 22 is arranged in the air precooling chamber 111. The circulating pump 23 is used to pump the water in the air precooling chamber 111 to the water distributor 22 and spray it onto the packing 21, so that the liquid on the packing 21 cools the gas.

[0036] It is understandable that the filler 21 is made of a material with a high specific surface area and excellent wettability, such as a polypropylene corrugated plate, a ceramic ring or a metal mesh filler, so as to increase the gas-liquid contact area and improve the heat and mass transfer efficiency. These fillers are tightly and orderly filled in at least part of the space of the air precooling chamber 111 to form a multi-layer staggered structure to ensure that the gas can fully contact the dripping water droplets when passing through, so as to achieve effective heat exchange. Of course, the liquid pumped and sprayed by the circulation pump 23 will also form a liquid film on the surface of the filler 21, increasing the contact area between the liquid and the air.

[0037] The water distributor 22 is installed above the air precooling chamber 111, and adopts precision drilling or nozzle design to ensure uniform distribution of water flow. Specifically, the water distributor 22 can be configured as a rotating nozzle, a dripping head or a spraying pipe. Furthermore, the dispersion degree and coverage area of ​​the water flow can be adjusted according to actual needs. When the water delivered by the circulating pump 23 reaches the water distributor 22, it will be evenly sprayed onto the surface of the filler 21, forming a fine water film or water droplets, which increases the contact opportunity between water and rising gas and strengthens the heat and moisture exchange process.

[0038] The circulation pump 23 is used to extract water from the bottom of the air precooling chamber 111 and pressurize the water to the water distributor 22 .

[0039] The second cooling assembly 3 includes a heat exchanger 31 and a fan 32. The heat exchanger 31 is arranged in the surface cooling heat exchange chamber 112. The fan 32 is arranged at the air outlet 1121 of the surface cooling heat exchange chamber 112. The gas flowing into the surface cooling heat exchange chamber 112 flows through the heat exchanger 31 for heat exchange and is then blown out by the fan.

[0040] It can be understood that the inside of the heat exchanger 31 is used for cooling liquid to flow, and the outside of the heat exchanger 31 is used for gas to pass through, so that the gas passing through the outside and the cooling liquid flowing inside can exchange heat through the heat exchanger 31, so that the cooling liquid can be cooled.

[0041] The fan 32 is installed at the air outlet 1121 of the surface cooling heat exchange chamber 112, and is used to drive the gas flow and accelerate the discharge of cold air after heat exchange. Specifically, the fan 32 can use a high-efficiency centrifugal or axial flow fan to ensure that sufficient wind pressure and air volume are generated under low power consumption conditions, and the air flow is pushed through the heat exchanger 31 quickly and discharged out of the equipment. Furthermore, the speed of the fan can be adjusted according to the temperature changes monitored in real time by the system to maintain the best heat dissipation performance and energy efficiency ratio. The water retainer 12 is used to block the liquid and allow the gas in the air pre-cooling chamber 111 to pass through and flow into the surface cooling heat exchange chamber 112. The gas flowing into the surface cooling heat exchange chamber 112 flows through the heat exchanger 31 for heat exchange and is blown out by the fan 32.

[0042] It is understandable that a hydrophobic coating can be provided on the surface of the water retainer 12 to isolate the liquid more effectively. The provision of the water retainer 12 not only ensures the separation of gas and liquid inside the device, but also avoids the damage that moisture may cause to the subsequent heat exchange links and electrical equipment, thereby improving the durability of the product.

[0043] During the operation of the system, the gas pre-treated by the first cooling component 2 enters the surface cooling heat exchange chamber 112 and performs deep heat exchange with the low-temperature medium in the heat exchanger 31. The low-temperature medium inside the heat exchanger absorbs the heat of the gas, and the gas is further cooled. After that, the fan 32 is started to forcefully extract the cooled gas and discharge it through the air outlet 1121 to achieve hot gas discharge. This process not only enhances the overall heat dissipation efficiency, but also promotes the air circulation inside the system, ensuring continuous and efficient heat dissipation capabilities.

[0044] Preferably, the circulation pump 23 can be a high-efficiency energy-saving pump in the prior art, ensuring low noise and low energy consumption while providing sufficient head and flow to meet the requirement of sufficient wetting of the packing layer.

[0045] Preferably, in some embodiments, guide vanes corresponding to the air outlet 1121 may be provided to optimize the airflow direction and speed, reduce noise and improve exhaust efficiency. Of course, the guide vanes may also prevent foreign matter from hitting the vanes.

[0046] like Figure 1 As shown, in some embodiments of the composite heat dissipation device 10, the heat exchanger 31 is supported against the inner wall of the surface cooling heat exchange chamber 112, so that the heat exchanger 31, the water retainer 12 and the inner wall of the surface cooling heat exchange chamber 112 together enclose a pre-cooling area 113.

[0047] It can be understood that the heat exchanger 31 is supported against the inner wall of the surface cooling heat exchange chamber 112, which can make full use of the gas pre-cooled through the air pre-cooling chamber 111 and avoid gas overflow between the side wall around the heat exchanger 31 and the inner wall of the surface cooling heat exchange chamber 112, thereby promoting efficient cooling of the circulating liquid inside the heat exchanger to a certain extent.

[0048] Furthermore, the smooth transition of the gas in the pre-cooling zone 113 reduces the turbulence caused by direct impact on the heat exchanger surface, allowing the airflow to contact the heat exchanger surface in a more orderly manner, improving the heat exchange efficiency and indirectly promoting the cooling effect of the liquid inside the heat exchanger.

[0049] like Figure 1 As shown, in some embodiments of the composite heat dissipation device 10, the first cooling component 2 also includes a water collecting base 25, and a water collecting tank 251 is provided on the water collecting base 25. The pump suction end of the circulating pump 23 is connected to the water collecting tank, and the pump outlet end of the circulating pump 23 is connected to the water distributor 22.

[0050] It can be understood that the water collecting base 25, as an important component of the first cooling assembly 2, is designed to collect water returned due to evaporation and dripping in the air precooling chamber 111. The water collecting tank 251 plays a role of temporarily storing circulating water. The setting of the water collecting tank 251 can fully collect all the return water, avoid overflow or drying, and maintain stable operation of the system.

[0051] like Figure 1 As shown, in some embodiments of the composite heat dissipation device 10, the first cooling component 2 further includes a filter, and the pump outlet of the circulation pump 23 is connected to the water distributor 22 through the filter.

[0052] It can be understood that the filter is used to filter out possible impurities in the liquid to prevent wear on the circulation pump 23 or blockage of the water distributor 22. Of course, in some embodiments, the filter can also be configured to be arranged between the sump 251 and the circulation pump 23 to filter the liquid before it enters the circulation pump 23 to ensure the durability of the circulation pump 23.

[0053] like Figure 1As shown, in some embodiments of the composite heat dissipation device 10 , the water distributor 22 includes a liquid distribution manifold 221 and a plurality of spray heads 222 . The liquid distribution manifold 221 is connected to the circulation pump 23 . The liquid distribution manifold 221 is connected to each spray head 222 . Each spray head 222 faces the filler 21 .

[0054] It can be understood that the liquid distribution manifold 221 is directly connected to the circulation pump 23 to ensure that the liquid output from the circulation pump 23 (the liquid mentioned here is not the liquid for heat dissipation flowing in the heat exchanger, but refers to the liquid used in the air precooling chamber 111) can smoothly enter the liquid distribution manifold 221. The liquid distribution manifold can evenly distribute the liquid to each spray head 222.

[0055] The spray heads 222 are evenly distributed at the ends of each branch of the liquid separation manifold 221, and they are all facing the filler 21. Each spray head is designed with a fine water spray hole structure, which can atomize the water flow or form fine water droplets to spray on the filler, thereby maximizing the contact area between the liquid and the air flowing through the air precooling chamber 111, thereby improving the heat and moisture exchange efficiency.

[0056] When the circulation pump 23 is started, the liquid at the bottom of the air precooling chamber 111 will be sucked and pumped to the liquid distribution manifold 221 under pressure, and the liquid will be distributed to each spray head 222 through the liquid distribution manifold 221. Then, the liquid will be evenly sprayed on the packing 21 through each spray head 222. In this way, when the water on the packing contacts the hot gas in the air precooling chamber 111, it can effectively absorb heat and evaporate, thereby achieving a cooling effect. At the same time, the liquid can be recycled in the whole process, which not only improves the heat dissipation efficiency, but also saves water resources.

[0057] like Figure 1 As shown, in some embodiments of the composite heat dissipation device 10, the heat exchanger 31 includes a fin heat exchanger, a water outlet 311 is provided at the bottom of the fin heat exchanger, and a water inlet 312 is provided at the top of the fin heat exchanger. Liquid is introduced into the fin heat exchanger through the water inlet 312, so that the liquid exchanges heat with the air passing through the fin heat exchanger, and then the liquid is discharged from the fin heat exchanger through the water outlet 311.

[0058] It is understandable that a large number of fin structures are provided on the fin heat exchanger. These fins are usually thin and dense metal sheets, which greatly increase the heat exchange area. The fin material is selected from metals with good thermal conductivity and corrosion resistance, such as aluminum or copper, to ensure efficient heat transfer.

[0059] Furthermore, the geometric shape of the fins may be configured as straight fins, corrugated fins or perforated fins, and the individual fins may be configured to be arranged in a parallel distribution or staggered arrangement.

[0060] like Figure 1As shown, in some embodiments of the composite heat dissipation device 10, two air inlets 1111 are opened on the air pre-cooling chamber 111, and the central axes of the two air inlets 1111 intersect.

[0061] It can be understood that airflow from different directions can be introduced through two intersecting air inlets 1111, which not only increases the inlet area of ​​the airflow, but also enables the air to enter the air precooling chamber 111 in a more complex and dispersed pattern, which helps to reduce airflow dead corners and improve the uniformity and efficiency of air treatment.

[0062] It can also be understood that the design of the air inlet with intersecting axes enables the gas to generate a certain vortex effect after entering the air pre-cooling chamber 111, so that the airflow can fully contact the filler.

[0063] like Figure 1 As shown, in some embodiments of the composite heat dissipation device 10 , an air outlet 1121 is provided on the surface cooling heat exchange cavity 112 , and the centerline axis of the air outlet 1121 intersects with the central axis of the heat exchanger 31 .

[0064] It can be understood that the intersecting design helps to form a more uniform air pressure distribution in the surface cooling heat exchange cavity 112, avoiding the problem of uneven heat dissipation caused by excessively high or low local air pressure. Uniform air flow distribution means that the air flow rate contacted by the surface of the heat exchanger 31 is more consistent, further improving the heat exchange efficiency and ensuring that the heat is quickly and evenly removed from the system.

[0065] like Figure 2 As shown, in some embodiments of the composite heat dissipation device 10, the water retainer 12 includes a frame 121 and a plurality of water retaining plates 122, each of which is arranged on the water retaining plates 122, and each of the water retaining plates 122 is arranged equidistantly along a straight line, and an air passage gap 123 is defined between two adjacent water retaining plates 122.

[0066] It can be understood that the frame 121 is used to carry and fix the water baffle 122, and the water baffle 122 is used to prevent liquid from passing through. The water baffles 122 are arranged equidistantly along a straight line on the frame 121, so that each water baffle is closely connected but not overlapped, and the air gap 123 defined between two adjacent water baffles 122 can be passed by gas. In this way, water vapor can be effectively prevented from entering the surface cooling heat exchange cavity 112, and the heat exchanger 31 and subsequent components can be kept dry and operate efficiently.

[0067] It should be noted that the equidistantly arranged water retaining plates 122 form an effective barrier that can effectively intercept the moisture carried from the air pre-cooling chamber 111, allowing only dry gas or gas containing a small amount of water vapor to pass through, thereby ensuring that the heat exchanger 31 and other system components are not contaminated or corroded by moisture. At the same time, the straight and equidistant layout reduces the resistance of airflow, and can maintain a low pressure drop even at high flow rates, which helps to reduce system energy consumption and improve overall energy efficiency.

[0068] The liquid cooling system of the utility model is used to cool down a data center or other types of heat sources. The cooling system includes a primary side circuit, a secondary side circuit, a liquid cooling cabinet and a composite heat dissipation device 10, the primary side circuit and the secondary side circuit are both connected to the liquid cooling cabinet, and the heat exchanger 31 is connected to the primary side circuit.

[0069] It can be understood that the heat dissipation liquid in the primary side loop will exchange heat with the liquid in the secondary side loop in the liquid cooling cabinet, so that the liquid in the secondary side loop can be cooled; then, the liquid in the secondary side loop continues to flow back along the secondary side loop to the equipment that needs heat dissipation (such as a data center or other equipment that generates heat), while the liquid that has absorbed heat in the primary side loop flows back to the composite heat dissipation device 10 for heat dissipation and cooling.

[0070] The implementation of this utility model has the following beneficial effects:

[0071] The utility model relates to a composite heat dissipation device and a liquid cooling system, wherein the liquid cooling system comprises the composite heat dissipation device; on the composite heat dissipation device, through a first cooling component of an air precooling cavity and a second cooling component of a surface cooling heat exchange cavity, the device can selectively enable the settings of the air precooling cavity and the surface cooling heat exchange cavity according to application requirements, so that the product can enable the surface cooling heat exchange cavity alone for dry cooling according to actual application requirements, or simultaneously start the air precooling cavity and the surface cooling heat exchange cavity for composite cooling, so that the device is not only suitable for conventional environments, but also can effectively adapt to a variety of complex working conditions, such as high temperature, high humidity or dusty working conditions, which greatly expands its application range and improves the environmental adaptability and versatility of the device.

[0072] In the first cooling component, the packing, water distributor and circulating pump work together to form an efficient gas-liquid contact interface, enhance the heat exchange process, effectively improve the heat dissipation rate, and avoid the high cost caused by setting up a wet film, reducing the equipment cost and daily operation and maintenance costs. The heat exchanger and fan in the surface cooling heat exchange cavity cooperate to further accelerate the transfer and dissipation of heat, further ensuring the efficient heat dissipation performance of the equipment.

[0073] The water retainer can effectively block the liquid and ensure smooth flow of gas, reduce unnecessary water loss during heat dissipation, and greatly reduce water consumption. At the same time, the water retainer can also prevent liquid from adhering to the heat exchanger, prevent blockage or corrosion of the heat exchanger, improve the durability of the equipment and ensure the heat exchange efficiency of the heat exchanger.

[0074] The scheme of the utility model has been described in detail above with reference to the accompanying drawings. In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. Those skilled in the art should also know that the actions and modules involved in the specification are not necessarily required for the utility model. In addition, it can be understood that the steps in the method of the embodiment of the utility model can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the utility model can be merged, divided and deleted according to actual needs.

[0075] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A composite heat dissipation device, characterized in that: include: A shell (1), wherein at least one precooling chamber (11) is provided on the shell (1), and a water retainer (12) is provided in the precooling chamber (11), so that the water retainer (12) divides the shell (1) into an air precooling chamber (111) and a surface cooling heat exchange chamber (112), and further the water retainer (12) isolates the liquid in the air precooling chamber and allows the gas in the air precooling chamber (111) to pass through and flow into the surface cooling heat exchange chamber (112); A first cooling component (2), the first cooling component (2) comprising a filler (21), a water distributor (22) and a circulation pump (23), the filler (21) filling at least a portion of the air precooling chamber (111), the water distributor (22) being arranged in the air precooling chamber (111), the circulation pump (23) being used to pump water in the air precooling chamber (111) to the water distributor (22) to spray the water onto the filler (21), so that the liquid on the filler (21) cools the gas; and The second cooling component (3) comprises a heat exchanger (31) and a fan, wherein the heat exchanger (31) is arranged in the surface cooling heat exchange chamber (112), and the fan is arranged at the air outlet (1121) of the surface cooling heat exchange chamber (112), and the gas flowing into the surface cooling heat exchange chamber (112) flows through the heat exchanger (31) for heat exchange and is then blown out by the fan.

2. The composite heat dissipation device according to claim 1, characterized in that: The heat exchanger (31) is supported against the inner wall of the surface cooling heat exchange chamber (112), so that the heat exchanger (31), the water retainer (12) and the inner wall of the surface cooling heat exchange chamber (112) together enclose a pre-cooling area (113).

3. The composite heat dissipation device according to claim 1, characterized in that: The first cooling component (2) further comprises a water collecting base (25), on which a water collecting tank (251) is arranged, the pump suction end of the circulation pump (23) is connected to the water collecting tank (251), and the pump outlet end of the circulation pump (23) is connected to the water distributor (22).

4. The composite heat dissipation device according to claim 3, characterized in that: The first cooling component (2) further comprises a filter, and the pump outlet of the circulation pump (23) is connected to the water distributor (22) through the filter.

5. The composite heat dissipation device according to any one of claims 1 to 4, characterized in that: The water distributor (22) comprises a liquid separation manifold (221) and a plurality of spray heads (222); the liquid separation manifold (221) is connected to the circulation pump (23); the liquid separation manifold (221) is connected to each of the spray heads (222); and each of the spray heads (222) faces the filler (21).

6. The composite heat dissipation device according to claim 1, characterized in that: The heat exchanger (31) comprises a fin heat exchange element, a water outlet is provided at the bottom of the fin heat exchange element, a water inlet is provided at the top of the fin heat exchange element, liquid is introduced into the fin heat exchange element through the water inlet, so that the liquid exchanges heat with the air passing through the fin heat exchange element, and then the liquid is discharged from the fin heat exchange element through the water outlet.

7. The composite heat dissipation device according to claim 1, characterized in that: The air precooling chamber (111) is provided with two air inlets (1111), and the central axes of the two air inlets (1111) intersect.

8. The composite heat dissipation device according to claim 1, characterized in that: An air outlet (1121) is provided on the surface cooling heat exchange cavity (112), and the centerline axis of the air outlet (1121) intersects with the central axis of the heat exchanger (31).

9. The composite heat dissipation device according to claim 1, characterized in that: The water baffle (12) comprises a frame (121) and a plurality of water baffles (122), each of the water baffles (122) being arranged on the water baffle (122), each of the water baffles (122) being arranged equidistantly along a straight line, and an air passage interval (123) being defined between two adjacent water baffles (122).

10. A liquid cooling system, characterized in that: It comprises a primary side circuit, a secondary side circuit, a liquid cooling cabinet and the composite heat dissipation device according to any one of claims 1 to 9, wherein the primary side circuit and the secondary side circuit are both connected to the liquid cooling cabinet, and the heat exchanger (31) is connected to the primary side circuit.

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