Cooling device and data center

Abstract

The embodiment of the utility model provides a cooling device and a data center, the cooling device comprises a spraying assembly and a heat exchanger, and the spraying assembly comprises a water tank, a filtering device, a pumping branch, a spraying branch and a flushing branch; the water tank is provided with a water outlet; the filtering device is used for filtering fluid flowing out from the water outlet; the pumping branch is connected to a water outlet of the water tank, the spraying branch and the flushing branch are both connected to the pumping branch, the pumping branch is used for driving fluid in the water tank to flow to the spraying branch or the flushing branch, the spraying branch is used for spraying the heat exchanger, and the flushing branch is used for outputting fluid to the filtering device to clean the filtering device. Through self-cleaning of the spraying assembly, the problem of manual cleaning after the filtering device of the water tank is blocked can be solved through automatic cleaning, two sets of water pumps / filtering devices are arranged in the system, and an operation mode that spraying and cleaning are mutually backup is formed; and the flow direction of a system water path is changed through the four-way reversing valve and the flushing pipeline, so that switching between a spraying state and a flushing state is formed, and manual operation and maintenance are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of cooling equipment, and in particular to a cooling device and a data center. Background Art

[0002] Indirect evaporative cooling products use a spray system to cool the air. However, in actual practice, since the water tank is connected to the outdoors, it is easily contaminated by dust and catkins, which can clog the spray pipe components. Therefore, the current common practice is to add a filter to the on-site water tank and ensure the cleanliness of the water tank by regularly maintaining and cleaning the filter. However, if the maintenance frequency is not enough, the filter will become clogged; if the maintenance frequency is too high, the operation and maintenance manpower burden is too heavy and the cost is too high. Utility Model Content

[0003] The embodiments of the present application provide a cooling device and a data center, wherein the spray assembly can self-clean the filter device through a cleaning source within its own system, thereby delaying the time for the filter device to become clogged, reducing maintenance costs, and improving the working efficiency of the spray assembly.

[0004] In the first aspect, an embodiment of the present application provides a cooling device, which includes a spray assembly and a heat exchanger. The spray assembly includes a water tank, a filter device, a pumping branch, a spray branch and a flushing branch. The water tank is provided with a water outlet. The filter device is arranged in the water tank and is used to filter the fluid flowing out of the water outlet. The pumping branch is connected to the water outlet of the water tank, the spray branch and the flushing branch are both connected to the pumping branch, the pumping branch is used to drive the fluid in the water tank to flow to the spray branch or the flushing branch, the spray branch is used to spray the heat exchanger, and the flushing branch is used to output fluid to the filter device to clean the filter device.

[0005] In this embodiment, driven by the power of the pumping branch, the pumping branch drives the fluid in the water tank to enter the pumping branch through the water outlet of the water tank, and then drives the fluid from the pumping branch to enter the spray branch and / or flushing branch according to demand. The fluid entering the spray branch can spray water mist to the heat exchanger through the spray head of the spray branch, and the fluid entering the flushing branch can flow to the filter device to clean the filter device. In addition, in this embodiment, the fluid used to clean the filter device is the fluid in the water tank, and the filter device is cleaned by the power provided by the pumping branch, without adding additional external fluid sources and external drive pumps and other components, which can not only effectively reduce costs, but also avoid secondary contamination of the external fluid source.

[0006] In some embodiments, the water outlet of the flushing branch is located outside the filter device and faces the outer surface of the filter device, and is used to clean the outer surface of the filter device. In this embodiment, since the flushing branch is used to flush the outer surface of the filter device, it has little effect on the normal water filtering function of the filter device and the pumping efficiency of the pumping branch, and thus will not affect the normal spraying operation of the spray assembly.

[0007] In some embodiments, the spray assembly further includes a switching assembly, which is connected between the pumping branch, the spraying branch and the flushing branch, and is used to switch the pumping branch to be connected to the spraying branch or to be connected to the flushing branch. In this embodiment, the water in the water tank can be transported to the spraying branch or the flushing branch according to demand through the switching assembly, so that when the heat exchanger needs to be sprayed, the heat exchanger can be sprayed through the spraying branch, and when the filter device needs to be flushed, the filter device can be cleaned through the flushing branch.

[0008] In some embodiments, there are multiple pumping branches, including a main pumping branch and a standby pumping branch, and the water inlet of the main pumping branch and the water inlet of the standby pumping branch are both connected to the water outlet of the water tank. In this embodiment, since there are multiple pumping branches, for example, two, during normal spraying operation, only one of the pumping branches can be used to provide power to the spraying branch, while the other pumping branch is used as a backup to continue working when the previous pumping branch has problems or needs to be shut down for a rest, so as to enable long-term spraying operations. In addition, since there are two pumping branches, namely the main pumping branch and the standby pumping branch, one of the pumping branches can be used to drive the fluid in the water tank to flow to the spraying branch, while the other pumping branch can drive the fluid in the water tank to flow to the flushing branch.

[0009] In some embodiments, the water outlets of the main pumping branch and the standby pumping branch are both connected to the switching assembly, and the water inlet of the spray branch and the water inlet of the flushing branch are both connected to the switching assembly; the switching assembly is used to switch between two states, one of which is that the water outlet of the main pumping branch is connected to the water inlet of the spray branch, and the water outlet of the standby pumping branch is connected to the water inlet of the flushing branch; the other state is that the water outlet of the main pumping branch is connected to the water inlet of the flushing branch, and the water outlet of the standby pumping branch is connected to the water inlet of the spray branch. In this embodiment, when the switching assembly is switched to one of the states, the main pumping branch is used to drive the fluid in the water tank to flow to the spray branch, and the standby pumping branch is used to drive the fluid in the water tank to flow to the flushing branch. When the switching assembly is switched to another state, the main pumping branch is used to drive the fluid in the water tank to flow to the flushing branch, and the standby pumping branch is used to drive the fluid in the water tank to flow to the spray branch. It is understandable that whether the flushing branch can spray the heat exchanger also depends on whether the water pump in the main pumping branch is working. Similarly, whether the spraying branch can flush the filter device also depends on whether the water pump in the standby pumping branch is working. For example, while the main pumping branch drives the fluid in the water tank to flow to the spraying branch, the standby pumping branch drives the fluid in the water tank to flow to the flushing branch. At this time, the spraying of the heat exchanger and the flushing of the filter device are carried out at the same time, which can effectively reduce the probability of the filter device of the spray assembly being blocked by dust, catkins and other impurities, increase the continuous working time, and improve work efficiency. For another example, only the main pumping branch is used to drive the fluid in the water tank to flow to the spray branch to perform spraying work, but no cleaning work is performed, so that the operation of the water pump of the standby pumping branch is stopped when the filter device does not need to be cleaned, so as to save costs.

[0010] In some embodiments, the switching assembly includes a multi-way valve, which includes four water inlets, and the water outlet of the main pumping branch, the water outlet of the standby pumping branch, the water inlet of the spray branch, and the water inlet of the flushing branch are respectively connected to the four water inlets in a one-to-one correspondence; the multi-way valve is used to switch between two states of the spray assembly, in one state, the multi-way valve connects the water outlet of the main pumping branch with the water inlet of the spray branch, and the multi-way valve connects the water outlet of the standby pumping branch with the water inlet of the flushing branch, and in another state, the multi-way valve connects the water outlet of the standby pumping branch with the water inlet of the spray branch, and the multi-way valve connects the water outlet of the main pumping branch with the water inlet of the flushing branch. In this embodiment, by setting a multi-way valve with four interfaces, the conversion of the two states of the spray assembly can be realized quickly and conveniently, and the structure is simple.

[0011] In some embodiments, the number of water outlets of the water tank is two, the number of filtering devices is two, and the two filtering devices are respectively arranged at the two water outlets of the water tank. In this embodiment, since the number of the filtering device and the water outlet of the water tank are both two, one of the filtering devices and the water outlet of the water tank can be used as the main one, and the other filtering device and the water outlet of the water tank can be used as a backup, so that when one of the filtering devices is blocked, the other filtering device can be used to filter water.

[0012] In some embodiments, one of the water outlets of the water tank is connected to the water inlet of the main pumping branch, and the other water outlet of the water tank is connected to the water inlet of the backup pumping branch; the water outlet of the flushing branch is used to output fluid to one of the two filter devices and clean one of the filter devices. In this embodiment, the two filter devices can be selectively cleaned through the flushing branch under the power drive of the main pumping branch and the backup pumping branch.

[0013] In some embodiments, the flushing branch includes a flushing pipeline, a switching valve connected to the water outlet of the flushing branch, and two water outlet pipelines whose water inlets are connected to the switching valve, and the water inlet of the flushing pipeline is connected to the switching assembly; the water outlet of one of the water outlet pipelines extends to one of the filter devices and is used to clean one of the filter devices, and the water outlet of the other water outlet pipeline extends to the other filter device and is used to clean the other filter device; the switching valve is used to switch the flushing pipeline to be connected to the water inlet of one of the water outlet pipelines or to be connected to the water inlet of the other water outlet pipeline. For ease of description, the two filter devices are set to be the first filter device and the second filter device, and the two water outlet pipelines are set to be the first pipeline and the second pipeline. In this embodiment, when the switching valve is switched to connect the water outlet of the flushing pipeline to the first pipeline, the fluid flows from the flushing pipeline to the first pipeline and then flows to the first filter device again to clean the first filter device. When the switching valve is switched to connect the water outlet of the flushing pipeline to the second pipeline, the fluid flows from the flushing pipeline to the second pipeline and then flows to the second filter device again to clean the second filter device. In this embodiment, the first filter device and the second filter device can be selectively cleaned by setting the switching valve, and the first filter device and the second filter device can be prevented from being blocked by impurities such as dust and catkins.

[0014] In some embodiments, the fluid flowing from the main pumping branch to the flushing branch flows to the second filter device to clean the second filter device. The fluid flowing from the self-provided pumping branch to the flushing branch flows to the first filter device to clean the first filter device. In this embodiment, the fluid pumped out by the main pumping branch connected to the first filter device is no longer used to clean the first filter device, but is used to clean the second filter device. Similarly, the fluid pumped out by the main pumping branch connected to the second filter device is no longer used to clean the second filter device, but is used to clean the first filter device. This can effectively avoid the need for a certain filter device to filter fluid and be cleaned at the same time, can effectively avoid the efficiency of the pumping branch connected to the filter device from being affected, and also avoid the influence of the spray branch on the spray effect of the heat exchanger.

[0015] In some embodiments, the water outlet of the first pipeline extends to the outer surface of the first filter device, so that the first filter device is cleaned by flushing the outer surface of the first filter device. The water outlet of the second pipeline extends to the outer surface of the second filter device, so that the second filter device is cleaned by flushing the outer surface of the second filter device.

[0016] In some embodiments, both filter devices include an inner cavity and a filter screen surrounding the inner cavity, the inner cavity is connected to the filter holes on the filter screen, and the water outlets of the two outlet pipes extend into the inner cavities of the two filter devices respectively. In this embodiment, since the water outlets of the two outlet pipes extend into the inner cavities of the two filter devices respectively, the fluid is directly transported from the outlet pipes to the inner cavity of the filter device. For the filter device, the fluid flows out of the filter device from the inner cavity of the filter device through the filter holes on the filter screen, so that dust, catkins and other impurities attached to the outer surface of the filter device can be reversely flushed away, thereby achieving the purpose of cleaning the filter device. Moreover, through the cleaning method of the filter device in this embodiment, the stubborn impurities attached to the outer surface of the filter device or the filter holes of the filter screen can be effectively flushed out, and the cleaning effect is better.

[0017] In some embodiments, the water outlets of the two water outlet pipes are connected to the two water outlets of the water tank. In this embodiment, since the water outlet of the water outlet pipe is connected to the water outlet of the water tank, the fluid flowing out of the water outlet pipe will flow back to the filter device, so that the impurities on the outer surface of the filter device can be washed away, thereby achieving the purpose of cleaning the filter device. Similarly, the water outlet of the water outlet pipe is connected to the pumping branch, which can also achieve the purpose of cleaning the filter device.

[0018] In some embodiments, the switching valve comprises a multi-way valve, which comprises three interfaces, one of which is connected to the water outlet of the flushing branch, and the other two interfaces are respectively connected to the water inlets of the two water outlet pipes, and the multi-way valve is used to switch the communication between one interface and the other two interfaces. In this embodiment, by setting a multi-way valve with four interfaces, the conversion of different working fluid states of the spray assembly can be realized quickly and conveniently, and the structure is simple.

[0019] In some embodiments, the pumping branch includes a connecting pipeline and a water pump and a one-way valve connected between the water inlet and the water outlet of the connecting pipeline. The water inlet of the connecting pipeline is connected to the water outlet of the water tank, and the water outlet of the connecting pipeline is respectively connected to the water inlet of the spray branch and the water inlet of the flushing branch. The one-way valve is used for the fluid to flow from the water inlet of the connecting pipeline to the water outlet of the connecting pipeline. In this embodiment, the function of the water pump is to provide a driving force to pump water from the water tank to the connecting pipeline, and then flow to the spray branch and the flushing branch through the connecting pipeline. The one-way valve can prevent the fluid from flowing back.

[0020] In a second aspect, an embodiment of the present application provides a data center, comprising a computer room and a cooling device as described in any one of the first aspects above, wherein an indoor return air outlet and an indoor supply air outlet of the cooling device are both connected to the interior of the computer room. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0022] Figure 1 A schematic diagram of the structure of a data center provided in an embodiment of the present application;

[0023] Figure 2 A schematic structural diagram of a spray assembly provided in an embodiment of the present application;

[0024] Figure 3 Based on Figure 2 A schematic structural diagram of another type of spray assembly extending from the spray assembly solution in the embodiment;

[0025] Figure 4 Based on Figure 3 A schematic structural diagram of another spray assembly extending from the spray assembly solution in the embodiment;

[0026] Figure 4A Based on Figure 4 A schematic structural diagram of the spray assembly in the embodiment when it is in operation mode 1;

[0027] Figure 4B Based on Figure 4A schematic structural diagram of the spray assembly in the embodiment when it is in operating mode 2;

[0028] Figure 5 The embodiments of this application are based on Figure 4 A schematic structural diagram of another spray assembly provided after the transformation;

[0029] Figure 5A Based on Figure 5 A schematic structural diagram of the spray assembly in the embodiment when it is in operation mode 1;

[0030] Figure 5B Based on Figure 5 A schematic structural diagram of the spray assembly in the embodiment when it is in operating mode 2;

[0031] Figure 6 The embodiments of this application are based on Figure 5 A schematic structural diagram of another spray assembly provided after the transformation. Description of the drawings:

[0033] 1000. data center; 1001. computer room; 1002. cooling device;

[0034] 1. Shell; 2. Heat exchanger; 3. Spray assembly; 4. Indoor return air outlet; 5. Indoor air supply outlet; 6. Primary fan; 7. Secondary fan;

[0035] 10. Water tank;

[0036] 20. Filter device; 20a. First filter device; 20b. Second filter device; 21. Inner cavity; 22. Filter screen;

[0037] 30, pumping branch; 31, water pump; 32, connecting pipeline; 33, one-way valve; 30a, main pumping branch; 30b, standby pumping branch;

[0038] 40. Sprinkler branch; 41. Sprinkler head; 42. Sprinkler pipeline;

[0039] 50, flushing branch; 51, flushing pipeline; 52, switching valve; 521, multi-way valve; 53, water outlet pipeline; 53a, first pipeline; 53b, second pipeline;

[0040] 60. Switching assembly; 61. Multi-way valve. DETAILED DESCRIPTION

[0041] The following first explains some terms involved in the embodiments of the present application.

[0042] The terms "first", "second", "third", "fourth", etc. in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0043] In this specification, the terms "perpendicular", "parallel", etc. are explained.

[0044] Vertical: The verticality defined in this application is not limited to an absolute vertical intersection relationship (angle of 90 degrees). It allows for non-absolute vertical intersection relationships caused by factors such as assembly tolerance, design tolerance, and influence of structural flatness. It also allows for errors in a small angle range. For example, the assembly error range of 80 to 100 degrees can be understood as a vertical relationship.

[0045] Parallelism: The parallelism defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism, which allows for situations where the absolute parallelism is not caused by factors such as assembly tolerance, design tolerance, and influence of structural flatness. These situations will lead to the sliding fitting part and the first door panel not being absolutely parallel, but this application also defines this situation as parallelism.

[0046] Data center (DC) refers to a facility used to house computer systems and related components, such as telecommunications, storage systems, power systems, data communication systems, environmental control systems (such as air conditioning, fire extinguishers) and various safety equipment. Data centers are generally used to transmit, accelerate, display, calculate and store data information on network infrastructure.

[0047] The various systems and equipment in the data center will generate a lot of heat during operation. In order to keep the room temperature in the data center low and maintain the normal operation of each system, a refrigeration system is needed to discharge the heat from the data center.

[0048] At present, the cooling system of the data center can be implemented by evaporative cooling technology. Evaporative cooling technology refers to the technology that uses the characteristics of water evaporation and heat absorption to reduce the temperature of the data center. From the perspective of whether the water is in contact with the air in the data center or not, evaporative cooling technology can include direct evaporative cooling technology and indirect evaporative cooling technology. Among them, direct evaporative cooling technology refers to the process of reducing the humidification and cooling of the air to be treated by direct contact between the air to be treated (such as the hot air in the data center) and water, using the water preheating evaporation and heat absorption. Indirect evaporative cooling technology refers to the process of transferring the coldness of the humid air obtained by direct evaporative cooling to the air to be treated (such as the hot air in the data center) through a non-direct contact heat exchanger to achieve equal humidification and cooling of the air to be treated.

[0049] Figure 1 A schematic diagram of the structure of a data center 1000 provided in an embodiment of the present application. Figure 1 The data center 1000 in the embodiment applies a cooling device 1002 provided in the embodiment of the present application. Figure 1 The cooling device 1002 in the embodiment may be an indirect evaporative cooling device or a direct evaporative cooling device.

[0050] Reference Figure 1 , the data center 1000 includes a machine room 1001 and a cooling device 1002. The cooling device 1002 is used to cool the machine room 1001.

[0051] The cooling device 1002 includes a shell 1 , and a heat exchanger 2 and a spray assembly 3 located inside the shell 1 . The spray assembly 3 is used for spraying fluid onto the heat exchanger 2 .

[0052] The housing 1 of the cooling device 1002 is provided with an indoor return air inlet 4 and an indoor supply air inlet 5. The indoor return air inlet 4 and the indoor supply air inlet 5 of the cooling device 1002 are both connected to the interior of the machine room 1001, so that the primary hot air in the machine room 1001 can flow through the heat exchanger 2 through the indoor return air inlet 4 and the indoor supply air inlet 5 of the cooling device 1002.

[0053] The cooling device 1002 also includes a primary fan 6, a secondary fan 7, etc. Among them, the spray assembly 3 is used to spray water mist on the secondary air drawn from the outside to obtain secondary cold and humid air; after the primary hot air from the machine room 1001 enters the heat exchanger 2, it performs non-contact heat exchange with the secondary cold and humid air that also enters the heat exchanger 2 to obtain primary cold air; the primary cold air is blown back to the machine room 1001 under the action of the primary fan 6 to reduce the temperature in the machine room 1001; the secondary cold and humid air becomes secondary hot and humid air after heat exchange, and is blown back to the outside under the action of the secondary fan 7. During the entire heat exchange process, due to the use of the heat exchanger 2, the outdoor air does not contact the air in the machine room 1001, and the outdoor air cannot directly enter the machine room 1001, which is suitable for use in an air-polluted environment and does not affect the air humidity in the machine room 1001.

[0054] It is understandable that, depending on the specific structural design of the cooling device 1002, the spray assembly 3 can be arranged at different positions and can spray water mist in different directions.

[0055] Figure 2 This is a simplified schematic diagram of the structure of a spray assembly 3 provided in an embodiment of the present application. Figure 2 The spray assembly 3 in the Figure 1 The cooling device 1002 in the embodiment may also be applied to a direct evaporative cooling device. Figure 2 P1 in the figure is the water outlet of the pumping branch 30 and is also one of the interfaces of the multi-way valve 61. P2 is the water inlet of the spray branch 40 and is also one of the interfaces of the multi-way valve 61. P3 is the water inlet of the flushing branch 50 and is also one of the interfaces of the multi-way valve 61. P4 is the water outlet of the flushing branch 50. P5 is the water inlet of the pumping branch 30 and is also the water outlet of the water tank 10. It should be noted that the water outlets and water inlets of the water tank 10, the pumping branch 30, the spray branch 40 and the flushing branch 50 are all well known to those skilled in the art. Figure 2 The water outlets and water inlets of the water tank 10, the pumping branch 30, the spray branch 40, and the flushing branch 50 in the following figures can all be referred to. Figure 2 , Figure 2 The following figures are no longer labeled.

[0056] Reference Figure 2 The spray assembly 3 includes a water tank 10 , a filtering device 20 , a pumping branch 30 , a spray branch 40 and a flushing branch 50 .

[0057] The water tank 10 is provided with a water outlet, and the filtering device 20 is provided in the water tank 10, for example, at the water outlet of the water tank 10, for filtering the fluid flowing out of the water outlet of the water tank 10. It is understandable that the water outlet of the water tank 10 can be provided on the side wall of the water tank 10, or on the bottom wall of the water tank 10.

[0058] The shape and structure of the filter device 20 are not specifically limited. For example, the filter device 20 can be a cylindrical structure, a square structure, or a shape similar to a floor drain. It is understandable that the filter device 20 is arranged at the water outlet of the water tank 10 to block the water outlet, so that the fluid first flows to the water outlet of the water tank 10 through the filter device 20, and then flows out through the water outlet of the water tank 10. During the process of cooling the air by the cooling device 1002, since the water tank 10 is connected to the outdoors, it is easy to be polluted by sand and dust, catkins, and then block the pipe components of the spray branch 40. The filter device 20 can prevent sand and dust, catkins from blocking the pipe components of the spray branch 40.

[0059] It is understandable that although the installation of the filter device 20 can prevent dust and catkins from clogging the pipe components of the spray branch 40, there is still a risk of dust and catkins clogging the filter device 20. Therefore, if the maintenance frequency of the filter device 20 is insufficient, the filter device 20 will be blocked. If the maintenance frequency is too high, the operation and maintenance manpower burden is too heavy and the cost is too high.

[0060] The pumping branch 30 is used to provide power to drive the fluid in the water tank 10 to flow out of the water tank 10 and flow to the spray branch 40, the flushing branch 50, etc. according to demand. For example, a water pump 31 is provided in the pumping branch 30, and power is provided by the water pump 31 to drive the fluid in the water tank 10 to flow to the spray branch 40, the flushing branch 50, etc.

[0061] It should be noted that the fluid in the water tank 10 can be water, or a solution of other solvents mixed with water, etc. It can also be other fluids besides water.

[0062] The spray branch 40 includes a spray head 41 and a spray pipe 42 connected to the spray head 41. The spray head 41 is directed toward the heat exchanger 2 of the cooling device 1002, and is used to spray water mist to the secondary air from the outdoors. For example, the fluid in the water tank 10 is driven to flow to the spray branch 40 through the pumping branch 30, and then water mist is sprayed toward the heat exchanger 2 through the spray head 41 of the spray branch 40 to obtain secondary cold and humid air, which is then heat exchanged with the primary hot air from the data center 1000 through the heat exchanger 2, thereby realizing cooling of the data center 1000.

[0063] The flushing branch 50 is used to clean the filter device 20. For example, the pumping branch 30 drives the flow in the water tank 10 to the flushing branch 50, and then flows to the filter device 20 through the flushing branch 50 to clean the filter device 20, thereby flushing away impurities such as dust, catkins, etc. on the filter device 20, thereby preventing the filter device 20 from being blocked by impurities such as dust, catkins, etc., thereby reducing the maintenance frequency and thus reducing costs, and can also reduce downtime to improve work efficiency.

[0064] In some embodiments, the water inlet of the pumping branch 30 is connected to the water outlet of the water tank 10, and the water inlet of the spray branch 40 and the water inlet of the flushing branch 50 are both connected to the water outlet of the pumping branch 30. In this embodiment, driven by the power of the pumping branch 30, the pumping branch 30 drives the fluid in the water tank 10 to enter the pumping branch 30 through the water outlet of the water tank 10, and then drives the fluid from the pumping branch 30 to enter the spray branch 40 and / or the flushing branch 50 according to demand. The fluid entering the spray branch 40 can spray water mist to the heat exchanger 2 through the spray head 41 of the spray branch 40, and the fluid entering the flushing branch 50 can flow to the filter device 20 to clean the filter device 20. In addition, in this embodiment, the fluid used to clean the filter device 20 is the fluid in the water tank 10, and the filter device 20 is cleaned by the power provided by the pumping branch 30 without adding additional external fluid sources and external drive pumps and other components. This can not only effectively reduce costs, but also avoid secondary contamination of the external fluid source.

[0065] It can be understood that the fluid flowing out of the water outlet of the pumping branch 30 can flow to the spray branch 40 and the flushing branch 50 at the same time, so that the spray branch 40 and the flushing branch 50 can work at the same time, that is, the spray branch 40 sprays fluid to the heat exchanger 2, and the flushing branch 50 sprays fluid to the filter device 20, thereby improving the working efficiency of the spray assembly 3 in this embodiment and reducing the maintenance frequency.

[0066] The pumping branch 30 can also selectively flow to the spray branch 40 or the flushing branch 50, so that when the heat exchanger 2 needs to be sprayed, the heat exchanger 2 can be sprayed through the spray branch 40, and when the filter device 20 needs to be flushed, the filter device 20 can be cleaned through the flushing branch 50.

[0067] In some embodiments, the pumping branch 30 includes a connecting pipe 32 and a water pump 31 connected between the water inlet and the water outlet of the connecting pipe 32, the water inlet of the connecting pipe 32 is connected to the water outlet of the water tank 10, and the water outlet of the connecting pipe 32 is respectively connected to the water inlet of the spray branch 40 and the water inlet of the flushing branch 50, wherein the function of the water pump 31 is to provide driving force to pump water from the water tank 10 to the connecting pipe 32, and then flow to the spray branch 40 and the flushing branch 50 through the connecting pipe 32.

[0068] In some embodiments, the pumping branch 30 further includes a one-way valve 33 connected between the water inlet and the water outlet of the pumping branch 30, and the one-way valve 33 is used for the fluid to flow from the water inlet of the connecting pipe 32 to the water outlet of the connecting pipe 32. The one-way valve 33 can prevent the fluid from flowing back.

[0069] In some embodiments, the one-way valve 33 is located between the water pump 31 and the water outlet of the connecting pipe 32 to prevent the fluid from flowing back through the water pump 31 .

[0070] In some embodiments, the spray assembly 3 further includes a switching assembly 60, and the water outlet of the pumping branch 30, the water inlet of the spraying branch 40, and the water inlet of the flushing branch 50 are all connected to the switching assembly 60, and the switching assembly 60 is used to switch the water outlet of the pumping branch 30 to be connected to the water inlet of the spraying branch 40 or to be connected to the water inlet of the flushing branch 50. In this embodiment, the water in the water tank 10 can be transported to the spraying branch 40 or the flushing branch 50 according to demand through the switching assembly 60, so that when the heat exchanger 2 needs to be sprayed, the heat exchanger 2 is sprayed through the spraying branch 40, and when the filter device 20 needs to be flushed, the filter device 20 is cleaned through the flushing branch 50.

[0071] In some embodiments, the switching assembly 60 is a multi-way valve 61, and the multi-way valve 61 is used to switch the water outlet of the pumping branch 30 to communicate with the water inlet of the spray branch 40 or the water inlet of the flushing branch 50. In other embodiments, the multi-way valve 61 may be replaced by multiple switch valves to switch the water outlet of the pumping branch 30 to communicate with the water inlet of the spray branch 40 or the water inlet of the flushing branch 50.

[0072] It is understandable that the number of the pumping branches 30 in this embodiment may be not only one but also multiple. For example, in some embodiments, the number of the pumping branches 30 is two, as shown below: Figure 3 The spray assembly 3 in the embodiment includes two pumping branches 30 .

[0073] Figure 3 Based on Figure 2 A schematic structural diagram of another type of spray assembly 3 extending from the spray assembly 3 in the embodiment, Figure 3 The spray assembly 3 in the embodiment has two pumping branches 30 .

[0074] Reference Figure 3In some embodiments, the spray assembly 3 includes two pumping branches 30, which are respectively a main pumping branch 30a and a standby pumping branch 30b. The main pumping branch 30a and the standby pumping branch 30b are used to drive the fluid in the water tank 10 to flow to the spray branch 40 or the flushing branch 50, so as to realize the spraying operation of the heat exchanger 2 or the cleaning operation of the filter device 20. In this embodiment, since there are two pumping branches 30, during normal spraying operation, only one of the pumping branches 30 can be used to provide power to the spray branch 40, while the other pumping branch 30 is used as a standby, and continues to work when the previous pumping branch 30 has problems or needs to be shut down for rest, so as to enable long-term spraying operation. In addition, since there are two pumping branches 30, namely the main pumping branch 30a and the standby pumping branch 30b, the fluid in the water tank 10 can be driven to flow to the spray branch 40 through one of the pumping branches 30, while the other pumping branch 30 drives the fluid in the water tank 10 to flow to the flushing branch 50. The two pumping branches 30 can work at the same time to achieve the spraying work of the heat exchanger 2 and the flushing work of the filter device 20 can be carried out at the same time. Of course, the two pumping branches 30 can also work at staggered times, so that the spraying effect can be performed when the heat exchanger 2 needs to be sprayed, and the cleaning operation can be performed when the filter device 20 needs to be flushed. It can be understood that both pumping branches 30 can be used to drive the fluid in the water tank 10 to spray through the spray branch 40 or to be cleaned through the flushing branch 50.

[0075] In some embodiments, the water inlet of the main pumping branch 30a and the water inlet of the standby pumping branch 30b are both connected to the water outlet of the water tank 10, the water outlets of the main pumping branch 30a and the standby pumping branch 30b are both connected to the switching assembly 60, and the water inlet of the spray branch 40 and the water inlet of the flushing branch 50 are both connected to the switching assembly 60; the switching assembly 60 is used to switch between two states, one of which is that the water outlet of the main pumping branch 30a is connected to the water inlet of the spray branch 40, and the water outlet of the standby pumping branch 30b is connected to the water inlet of the flushing branch 50; the other state is that the water outlet of the main pumping branch 30a is connected to the water inlet of the flushing branch 50, and the water outlet of the standby pumping branch 30b is connected to the water inlet of the spray branch 40. In this embodiment, the working state of the spray assembly 3 can be switched by the switching assembly 60.

[0076] When the switching assembly 60 is switched to one of the states, the water outlet of the main pumping branch 30a is connected to the water inlet of the spray branch 40, and the water outlet of the standby pumping branch 30b is connected to the water inlet of the flushing branch 50. At this time, the main pumping branch 30a is used to drive the fluid in the water tank 10 to flow to the spray branch 40, and the standby pumping branch 30b is used to drive the fluid in the water tank 10 to flow to the flushing branch 50. It can be understood that whether the spray branch 40 can spray the heat exchanger 2 also depends on whether the water pump 31 in the main pumping branch 30a is working. Similarly, whether the flushing branch 50 can flush the filter device 20 also depends on whether the water pump 31 in the standby pumping branch 30b is working.

[0077] When the switching assembly 60 is switched to another state, the water outlet of the main pumping branch 30a is connected to the water inlet of the flushing branch 50, and the water outlet of the standby pumping branch 30b is connected to the water inlet of the spraying branch 40. At this time, the main pumping branch 30a is used to drive the fluid in the water tank 10 to flow to the flushing branch 50, and the standby pumping branch 30b is used to drive the fluid in the water tank 10 to flow to the spraying branch 40. It can be understood that whether the flushing branch 50 can spray the heat exchanger 2 also depends on whether the water pump 31 in the main pumping branch 30a is working. Similarly, whether the spraying branch 40 can flush the filter device 20 also depends on whether the water pump 31 in the standby pumping branch 30b is working.

[0078] Based on the solution that the spray assembly 3 in this embodiment includes two pumping branches 30, when the switching assembly 60 switches to the water outlet of the main pumping branch 30a being connected to the water inlet of the spray branch 40, and the water outlet of the standby pumping branch 30b being connected to the water inlet of the flushing branch 50, the spray assembly 3 in this embodiment includes at least the following four working modes:

[0079] When the water pump 31 in the main pumping branch 30a and the water pump 31 in the standby pumping branch 30b are working at the same time, it is mode 1. When the water pump 31 in the main pumping branch 30a is working and the water pump 31 in the standby pumping branch 30b is not working, it is mode 2. When the water pump 31 in the main pumping branch 30a is not working and the water pump 31 in the standby pumping branch 30b is working, it is mode 3. When the water pump 31 in the main pumping branch 30a is not working and the water pump 31 in the standby pumping branch 30b is not working, it is mode 4.

[0080] In mode 1, the main pumping branch 30a drives the fluid in the water tank 10 to flow to the spray branch 40, while the standby pumping branch 30b drives the fluid in the water tank 10 to flow to the flushing branch 50. At this time, the spraying of the heat exchanger 2 and the flushing of the filter device 20 are carried out simultaneously, so that the probability of the filter device 20 of the spray assembly 3 being blocked by impurities such as dust and catkins can be effectively reduced, and the continuous working time is increased to improve the work efficiency. In mode 2, only the main pumping branch 30a drives the fluid in the water tank 10 to flow to the spray branch 40 to perform the spraying work, and no cleaning work is performed, so that the operation of the water pump 31 of the standby pumping branch 30b is stopped when the filter device 20 does not need to be cleaned, so as to save costs. In mode 3, only the standby pumping branch 30b drives the fluid in the water tank 10 to flow to the flushing branch 50 to clean the filter device 20. In mode 4, neither the spraying operation nor the cleaning operation is performed.

[0081] Based on the solution that the spray assembly 3 in this embodiment includes two pumping branches 30, when the water outlet of the main pumping branch 30a is connected to the water inlet of the flushing branch 50, and the water outlet of the standby pumping branch 30b is connected to the water inlet of the spraying branch 40, the spray assembly 3 in this embodiment also includes at least the following four working modes:

[0082] When the water pump 31 of the main pumping branch 30a and the water pump 31 of the standby pumping branch 30b are working at the same time, it is mode 1. When the water pump 31 of the main pumping branch 30a is working and the water pump 31 of the standby pumping branch 30b is not working, it is mode 2. When the water pump 31 of the main pumping branch 30a is not working and the water pump 31 of the standby pumping branch 30b is working, it is mode 3. When the water pump 31 of the main pumping branch 30a is not working and the water pump 31 of the standby pumping branch 30b is not working, it is mode 4.

[0083] In mode 1, the standby pumping branch 30b drives the fluid in the water tank 10 to flow to the spray branch 40, while the main pumping branch 30a drives the fluid in the water tank 10 to flow to the flushing branch 50. At this time, the spraying of the heat exchanger 2 and the flushing of the filter device 20 are carried out simultaneously. In mode 2, only the main pumping branch 30a drives the fluid in the water tank 10 to flow to the flushing branch 50 to clean the filter device 20. In mode 3, only the standby pumping branch 30b drives the fluid in the water tank 10 to flow to the spray branch 40 to spray the heat exchanger 2. In mode 4, neither the spraying operation nor the cleaning operation is performed.

[0084] In some embodiments, the switching component 60 is a multi-way valve 61, and the multi-way valve 61 includes four interfaces. For the convenience of description, the four interfaces are set to be the first interface, the second interface, the third interface, and the fourth interface, respectively. The numbers 1, 2, 3, and 4 at the multi-way valve 61 in the figure represent the first interface, the second interface, the third interface, and the fourth interface, respectively. The first interface is connected to the water outlet of the main pumping branch 30a, the second interface is connected to the water inlet of the spray branch 40, the third interface is connected to the water outlet of the standby pumping branch 30b, and the fourth interface is connected to the water inlet of the flushing branch 50. The first interface, the second interface, the third interface, and the fourth interface of the multi-way valve 61 can be selectively connected to each other. For example, in one of the above states, the first interface and the second interface are connected, and the third interface and the fourth interface are connected. At this time, the above-mentioned mode one, mode two, mode three, and mode four can be selected according to needs. For example, in another state mentioned above, the first interface is connected to the fourth interface, and the second interface is connected to the third interface. At this time, the above-mentioned mode 1, mode 2, mode 3 and mode 4 can be selected as needed.

[0085] It can be understood that the multi-way valve 61 mentioned above can be replaced by multiple switching valves, the multi-way valve 61 with four interfaces mentioned above can be replaced by multiple two-way valves, the multi-way valve 61 with four interfaces mentioned above can be replaced by multiple three-way valves, and the multi-way valve 61 with four interfaces mentioned above can be replaced by a combination of three-way valves and two-way valves.

[0086] In some embodiments, the number of the filter device 20 may be one. When there is one filter device 20, in the above-mentioned mode one or mode 1, the filter device 20 is cleaned by the flushing branch 50 while filtering impurities.

[0087] In some embodiments, the water outlet of the flushing branch 50 extends to the outer surface of the filter device 20 and is used to clean the outer surface of the filter device 20 to flush away impurities such as dust and catkins attached to the outer surface of the filter device 20 to prevent the filter device 20 from being blocked. Since the flushing branch 50 is used to flush the outer surface of the filter device 20, it has little effect on the normal water filtering function of the filter device 20 and the water pumping efficiency of the pumping branch 30, thereby not affecting the normal spraying operation of the spray assembly 3.

[0088] It is understandable that the number of the filter device 20 may be multiple, for example, each pumping branch 30 corresponds to a filter device 20, for example, in the following Figure 4 In the solution in, two filtering devices 20 are included.

[0089] Figure 4 Based on Figure 3A schematic structural diagram of another spray assembly 3 that is an extension of the spray assembly 3 in the embodiment. Figure 4 The spray assembly 3 in the embodiment includes two filter devices 20 .

[0090] Reference Figure 4 In some embodiments, the number of water outlets of the water tank 10 is two, the number of filtering devices 20 is two, and the two filtering devices 20 are respectively arranged at the two water outlets of the water tank 10. The two filtering devices 20 are respectively used to filter dust, catkins and other impurities at the two water outlets of the water tank 10. In this embodiment, since the number of water outlets of the filtering devices 20 and the water tank 10 are both two, one of the filtering devices 20 and the water outlet of the water tank 10 can be used as the main one, and the other filtering device 20 and the water outlet of the water tank 10 can be used as a backup, so that when one of the filtering devices 20 is blocked, the other filtering device 20 can be used to filter water. Of course, when there are two filtering devices 20, the filtering devices 20 can also be cleaned by the flushing branch 50, and the two filtering devices 20 can be cleaned separately or simultaneously.

[0091] In some embodiments, one of the water outlets of the water tank 10 is connected to the water inlet of the main pumping branch 30a, and the other water outlet of the water tank 10 is connected to the water inlet of the standby pumping branch 30b; the water outlet of the flushing branch 50 is used to output fluid to one of the two filter devices 20 and clean one of the filter devices 20. In this embodiment, the two filter devices 20 can be selectively cleaned through the flushing branch 50 under the power drive of the main pumping branch 30a and the standby pumping branch 30b.

[0092] For the convenience of description, the two filter devices 20 are respectively set as the first filter device 20a and the second filter device 20b. Taking the case where the spray assembly 3 is in the above-mentioned mode 1 as an example, the first filter device 20a is used to filter the fluid in the water tank 10, and the main pumping branch 30a drives the fluid filtered by the first filter device 20a to flow to the spray branch 40 to spray the heat exchanger 2. At the same time, the standby pumping branch 30b drives the fluid filtered by the second filter device 20b to flow to the flushing branch 50, and cleans the first filter device 20a or the second filter device 20b. Similarly, when the spray assembly 3 is in the above-mentioned mode 1, mode 3, and mode 2, the first filter device 20a or the second filter device 20b can be cleaned through the flushing branch 50.

[0093] In some embodiments, the flushing branch 50 includes a flushing pipeline 51, a switching valve 52 connected to the water outlet of the flushing branch 50, and two water outlet pipelines 53 whose water inlets are connected to the switching valve 52. The water inlet of the flushing pipeline 51 is connected to the switching assembly 60, and the water outlets of the two water outlet pipelines 53 extend to the two filter devices 20 respectively, so as to clean the two filter devices 20. For the convenience of description, the two water outlet pipelines 53 are set to be a first pipeline 53a and a second pipeline 53b respectively. The water outlet of one of the water outlet pipelines 53 extends to one of the filter devices 20, that is, the first pipeline 53a extends to the first filter device 20a, so as to clean the first filter device 20a. The water outlet of the other water outlet pipeline 53 extends to the other filter device 20, and is used to clean the other filter device 20, that is, the water outlet of the second pipeline 53b extends to the second filter device 20b, and is used to clean the second filter device 20b. The switching valve 52 is used to switch the flushing pipeline 51 to be connected to the water inlet of one of the water outlet pipelines 53 or to be connected to the water inlet of the other water outlet pipeline 53, that is, the switching valve 52 is used to switch the flushing pipeline 51 to be connected to the first pipeline 53a or to be connected to the second pipeline 53b. In this embodiment, when the switching valve 52 is switched to the water outlet of the flushing pipeline 51 to be connected to the first pipeline 53a, the fluid flows from the flushing pipeline 51 to the first pipeline 53a, and then flows to the first filter device 20a again to clean the first filter device 20a. When the switching valve 52 is switched to the water outlet of the flushing pipeline 51 to be connected to the second pipeline 53b, the fluid flows from the flushing pipeline 51 to the second pipeline 53b, and then flows to the second filter device 20b again to clean the second filter device 20b. In this embodiment, by setting the switching valve element 52, the first filter device 20a and the second filter device 20b can be selectively cleaned, and the first filter device 20a and the second filter device 20b can be prevented from being blocked by impurities such as dust and catkins.

[0094] In some embodiments, the fluid flowing from the autonomous pumping branch 30a to the flushing branch 50 flows to the second filter device 20b to clean the second filter device 20b. The fluid flowing from the autonomous pumping branch 30b to the flushing branch 50 flows to the first filter device 20a to clean the first filter device 20a. In this embodiment, the fluid pumped out by the main pumping branch 30a connected to the first filter device 20a is no longer cleaned for the first filter device 20a, but for the second filter device 20b. Similarly, the fluid pumped out by the main pumping branch 30a connected to the second filter device 20b is no longer cleaned for the second filter device 20b, but for the first filter device 20a. Thereby, it can be effectively avoided that a certain filter device 20 needs to filter fluid and be cleaned at the same time, and the efficiency of the pumping branch 30 connected to the filter device 20 can be effectively avoided from being affected, and the influence of the spray branch 40 on the spray effect of the heat exchanger 2 is also avoided.

[0095] In some embodiments, the switching valve member 52 includes a multi-way valve 521, and the multi-way valve 521 includes a first interface, a second interface, and a third interface, wherein the numbers 1, 2, and 3 at the multi-way valve 521 in the accompanying drawings represent the first interface, the second interface, and the third interface, respectively, and the first interface, the second interface, and the third interface can be selectively interconnected to achieve the switching of the flushing pipeline 51 with the first pipeline 53a and the second pipeline 53b. For example, when the first interface and the second interface are connected, the water outlet of the flushing pipeline 51 is connected to the first pipeline 53a, and when the first interface and the third interface are connected, the water outlet of the flushing pipeline 51 is connected to the second pipeline 53b. Therefore, the multi-way valve 521 in this embodiment can effectively solve the switching problem of the flushing pipeline 51 with the first pipeline 53a and the second pipeline 53b.

[0096] It is understandable that in some other embodiments, the switching valve 52 may also be a four-way valve, and one of the interfaces may be blocked to function as a three-way valve. In some other embodiments, the switching valve 52 may also include two switch valves, which are used to control the two water outlet pipes 53 respectively.

[0097] In some embodiments, the water outlet of the first pipeline 53a extends to the outer surface of the first filter device 20a, so as to clean the first filter device 20a by flushing the outer surface of the first filter device 20a. The water outlet of the second pipeline 53b extends to the outer surface of the second filter device 20b, so as to clean the second filter device 20b by flushing the outer surface of the second filter device 20b. It is understandable that in some other embodiments, the fluid flowing from the autonomous pumping branch 30a to the flushing branch 50 can also choose to flow to the first filter device 20a, so as to clean the outer surface of the first filter device 20a by flushing. Similarly, the fluid flowing from the autonomous pumping branch 30b to the flushing branch 50 can also choose to flow to the second filter device 20b, so as to clean the outer surface of the second filter device 20b by flushing.

[0098] based on Figure 4 The spray assembly 3 in the embodiment includes two pumping branches 30 and two filtering devices 20. The spray assembly 3 in this embodiment has at least the following operating modes.

[0099] Reference Figure 4A , Figure 4A The spray assembly 3 in the embodiment is in operation mode 1: the switching assembly 60 switches the water outlet of the main pump to communicate with the water inlet of the spray branch 40, and the water outlet of the standby pump branch 30b is connected to the water inlet of the flushing branch 50, and the switching valve 52 switches the water outlet of the flushing pipeline 51 to communicate with the first pipeline 53a. In operation mode 1, when the main pump branch 30a is working, the main pump branch 30a drives the fluid in the water tank 10 to flow to the spray branch 40 after being filtered by the first filter device 20a to spray the heat exchanger 2. When the standby pump branch 30b is working, the standby pump branch 30b drives the fluid in the water tank 10 to flow to the flushing branch 50 after being filtered by the second filter device 20b, and then flows to the first filter device 20a through the first pipeline 53a again to clean the first filter device 20a. It should be noted that the main pumping branch 30a and the standby pumping branch 30b may work at the same time or at different times.

[0100] Reference Figure 4B , Figure 4BThe spray assembly 3 in the embodiment is in the second operation mode: the switching assembly 60 switches the water outlet of the main pumping branch 30a to communicate with the water inlet of the flushing branch 50, and the water outlet of the standby pumping branch 30b is connected to the water inlet of the spraying branch 40, and the switching valve 52 switches the water outlet of the flushing pipeline 51 to communicate with the second pipeline 53b. In the second operation mode, when the main pumping branch 30a is working, the main pumping branch 30a drives the fluid in the water tank 10 to flow to the flushing branch 50 after being filtered by the first filter device 20a, and flows to the second filter device 20b again through the second pipeline 53b to clean the second filter device 20b. When the standby pumping branch 30b is working, the standby pumping branch 30b drives the fluid in the water tank 10 to flow to the spraying branch 40 after being filtered by the second filter device 20b to spray the heat exchanger 2. Likewise, the main pumping branch 30a and the standby pumping branch 30b may work simultaneously or at different times.

[0101] It should be noted that for ease of viewing, Figure 4A and Figure 4B The dotted line portion in the figure indicates the path of the fluid flowing from the water tank 10 to the spray branch 40. Figure 4A and Figure 4B The dotted line portion in refractory FIG. 1 indicates the path of the fluid flowing out of the water tank 10 to the flushing branch 50 .

[0102] Figure 5 The embodiments of this application are based on Figure 4 A schematic structural diagram of another spray assembly 3 provided after the transformation. Figure 5 The flushing branch 50 of the spray assembly 3 in the embodiment cleans the filter device 20 in the same manner as Figure 4 The flushing methods in the embodiments are different.

[0103] Reference Figure 5 In some embodiments, both filter devices 20 include an inner cavity 21 and a filter screen 22 surrounding the inner cavity 21, the inner cavity 21 is connected to the filter holes on the filter screen 22, and the outlets of the two water outlet pipes 53 extend into the inner cavities 21 of the two filter devices 20, respectively. In this embodiment, since the outlets of the two water outlet pipes 53 extend into the inner cavities 21 of the two filter devices 20, respectively, the fluid is directly transported from the water outlet pipes 53 to the inner cavity 21 of the filter device 20. For the filter device 20, the fluid flows out of the filter device 20 from the inner cavity 21 of the filter device 20 through the filter holes on the filter screen 22, so that dust, catkins and other impurities attached to the outer surface of the filter device 20 can be reversely flushed away, thereby achieving the purpose of cleaning the filter device 20. Moreover, through the cleaning method of the filter device 20 in this embodiment, the stubborn impurities attached to the outer surface of the filter device 20 or the filter holes of the filter screen 22 can be effectively flushed out, and the cleaning effect is better.

[0104] Specifically, the spray assembly 3 in this embodiment also has at least Figure 4A Operation mode 1 and Figure 4B The second operation mode in the embodiment, wherein the operation mode of the spray assembly 3 in this embodiment is the same as Figure 5A As shown, the operation mode of the spray assembly 3 in this embodiment is as follows Figure 5B As shown, considering that the operation mode 1 and the operation mode 2 of the spray assembly 3 in this embodiment are the same Figure 4 The operation mode 1 and the operation mode 2 of the spray assembly 3 in the embodiment are the same, and the operation mode 1 and the operation mode 2 of the spray assembly 3 in this embodiment will not be described in detail here, and can be directly referred to above. Figure 4A Operation mode 1 and Figure 4B Operation mode 2 in the embodiment. It should be noted that, for ease of viewing, Figure 5A and Figure 5B The dotted line portion in the figure indicates the path of the fluid flowing from the water tank 10 to the spray branch 40. Figure 5A and Figure 5B The dotted line portion in refractory FIG. 1 indicates the path of the fluid flowing out of the water tank 10 to the flushing branch 50 .

[0105] Figure 6 The embodiments of this application are based on Figure 5 A schematic structural diagram of another spray assembly 3 provided after the transformation. Figure 6 The flushing branch 50 of the spray assembly 3 in the embodiment cleans the filter device 20 in the same manner as Figure 5 The core concept of the flushing method in the embodiments is the same, that is, the outer surface of the filter device 20 is flushed by the fluid flowing through the filter device 20 in reverse. Figure 6 The spray assembly 3 in the embodiment and Figure 5 The main difference of the spray assembly 3 in the embodiment is that the two water outlet pipes 53 are not directly connected to the inner cavity 21 of the filter device 20 , but are connected to the water outlet of the water tank 10 .

[0106] Reference Figure 6In some embodiments, the water outlets of the two water outlet pipes 53 are respectively connected to the two water outlets of the water tank 10 or to the pumping branch 30 connected to the two water outlets of the water tank 10, and are located between the water pump 31 on the pumping branch 30 and the water inlet of the pumping branch 30. In this embodiment, since the water outlet of the water outlet pipe 53 is connected to the water outlet of the water tank 10, the fluid flowing out through the water outlet pipe 53 will flow back to the filter device 20, so that the impurities on the outer surface of the filter device 20 can be washed away, thereby achieving the purpose of cleaning the filter device 20. Similarly, the water outlet of the water outlet pipe 53 is connected to the pumping branch 30, which can also achieve the purpose of cleaning the filter device 20. The spray assembly 3 in this embodiment also has at least the above Figure 4A Operation mode 1 and Figure 4B The second operation mode in the embodiment can be specifically referred to above Figure 4A Operation mode 1 and Figure 4B The second operation mode in the embodiment will not be described in detail here.

[0107] It is understandable that, in some other embodiments, the path switching assembly 60 may not be provided, and the flushing branch 50 and the pumping branch 30 may be directly connected.

[0108] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A cooling device, characterized in that: The cooling device includes a spray assembly and a heat exchanger, the spray assembly includes a water tank, a filtering device, a pumping branch, a spray branch and a flushing branch, the water tank is provided with a water outlet, the filtering device is arranged in the water tank and is used to filter the fluid flowing out of the water outlet; The pumping branch is connected to the water outlet of the water tank, the spray branch and the flushing branch are both connected to the pumping branch, the pumping branch is used to drive the fluid in the water tank to flow to the spray branch or the flushing branch, the spray branch is used to spray the heat exchanger, and the flushing branch is used to output fluid to the filter device to clean the filter device.

2. The cooling device according to claim 1, characterized in that: The water outlet of the flushing branch is located outside the filter device and faces the outer surface of the filter device, and is used to clean the outer surface of the filter device.

3. The cooling device according to claim 1, characterized in that: The spray assembly also includes a switching assembly, which is connected between the pumping branch, the spray branch and the flushing branch, and is used to switch the pumping branch to be connected to the spray branch or to be connected to the flushing branch.

4. The cooling device according to claim 3, characterized in that: The number of the pumping branches is multiple, and the multiple pumping branches include a main pumping branch and a standby pumping branch. The water inlet of the main pumping branch and the water inlet of the standby pumping branch are both connected to the water outlet of the water tank, the water outlets of the main pumping branch and the standby pumping branch are both connected to the path switching component, and the water inlet of the spray branch and the water inlet of the flushing branch are both connected to the path switching component; The switching component is used to switch between two states, one of which is that the water outlet of the main pumping branch is connected to the water inlet of the spray branch, and the water outlet of the standby pumping branch is connected to the water inlet of the flushing branch; the other state is that the water outlet of the main pumping branch is connected to the water inlet of the flushing branch, and the water outlet of the standby pumping branch is connected to the water inlet of the spray branch.

5. The cooling device according to claim 4, characterized in that: The switching assembly includes a multi-way valve, and the multi-way valve includes four water inlets, and the water outlet of the main pumping branch, the water outlet of the standby pumping branch, the water inlet of the spray branch, and the water inlet of the flushing branch are respectively connected to the four water inlets in a one-to-one correspondence; The multi-way valve is used to switch between the two states. In one of the states, the multi-way valve connects the water outlet of the main pumping branch with the water inlet of the spray branch, and the multi-way valve connects the water outlet of the standby pumping branch with the water inlet of the flushing branch. In the other state, the multi-way valve connects the water outlet of the standby pumping branch with the water inlet of the spray branch, and the multi-way valve connects the water outlet of the main pumping branch with the water inlet of the flushing branch.

6. The cooling device according to claim 4 or 5, characterized in that: The water tank has two water outlets and two filtering devices. The two filtering devices are respectively arranged at the two water outlets of the water tank. One of the water outlets of the water tank is connected to the water inlet of the main pumping branch, and the other water outlet of the water tank is connected to the water inlet of the standby pumping branch. The water outlet of the flushing branch is used to output fluid to one of the two filtering devices and clean one of the filtering devices.

7. The cooling device according to claim 6, characterized in that: The flushing branch comprises a flushing pipeline, a switching valve connected to the water outlet of the flushing branch, and two water outlet pipelines whose water inlets are both connected to the switching valve, and the water inlet of the flushing pipeline is connected to the switching assembly; The water outlet of one of the water outlet pipes extends to one of the filter devices and is used to clean one of the filter devices, and the water outlet of the other water outlet pipe extends to the other of the filter devices and is used to clean the other of the filter devices; the switching valve is used to switch the flushing pipeline to be connected to the water inlet of one of the water outlet pipes or to the water inlet of the other of the water outlet pipes.

8. The cooling device according to claim 7, characterized in that: The two filter devices each include an inner cavity and a filter screen surrounding the inner cavity, the inner cavity is communicated with the filter holes on the filter screen, and the water outlets of the two water outlet pipes extend into the inner cavities of the two filter devices respectively.

9. The cooling device according to claim 7, characterized in that: The water outlets of the two water outlet pipes are respectively connected to the two water outlets of the water tank.

10. The cooling device according to claim 7, characterized in that: The switching valve component includes a multi-way valve, which includes three interfaces, one of which is connected to the water outlet of the flushing branch, and the other two interfaces are respectively connected to the water inlets of the two outlet pipes. The multi-way valve is used to switch the connection between one of the interfaces and the other two interfaces.

11. The cooling device according to any one of claims 1 to 5, characterized in that: The pumping branch includes a connecting pipeline and a water pump and a one-way valve connected between the water inlet and the water outlet of the connecting pipeline. The water inlet of the connecting pipeline is connected to the water outlet of the water tank, and the water outlet of the connecting pipeline is respectively connected to the water inlet of the spray branch and the water inlet of the flushing branch. The one-way valve is used for the fluid to flow from the water inlet of the connecting pipeline to the water outlet of the connecting pipeline.

12. A data center, characterized in that: The data center comprises a computer room and a cooling device as described in any one of claims 1 to 11 above, wherein an indoor return air outlet and an indoor supply air outlet of the cooling device are both connected to the interior of the computer room.

Images