CN114644419A - Heat exchange system, data cabin, underwater data center - Google Patents

Abstract

The invention relates to the technical field of data centers, in particular to a heat exchange system, a data cabin, and an underwater data center. A heat exchange system is suitable for radiating heat to a data center, comprising a water inlet pipeline, a filter and a power pump are arranged on the water inlet pipeline, at least two water inlet pipelines are arranged in parallel on the water inlet of the heat exchange system; the backflushing pipeline, Two water inlet pipelines are connected, the water inlet end of the recoil pipeline is connected to the rear end of the power pump on one water inlet pipeline, and the water outlet end of the recoil pipeline is connected to the front end of the power pump on the other water inlet pipeline. The heat exchange system in the present invention realizes the reverse flushing of the filter, thereby realizing the cleaning of impurities or microorganisms attached to the filter. When it is necessary to clean different filters, repeating the above operation process can realize the cleaning of all filters in sequence.

Description

Heat exchange system, data cabin, underwater data center

technical field

The invention relates to the technical field of data centers, in particular to a heat exchange system, a data cabin, and an underwater data center.

Background technique

A data center is a global collaborative network of specific devices used to transmit, accelerate, display, compute, and store data information on the Internet infrastructure. The general data center is to put together a large number of servers to provide running applications to process business and operational organizational data. However, the server will emit a lot of heat when it is running, and the above heat needs to be radiated to ensure the normal working temperature of the server.

In the prior art, an underwater data center is provided, in which servers are placed in specially-made data cabins, the data cabins are filled with cooling fluid, and then the data cabins are sunk into the seabed. The heat emitted by the server is absorbed by the cooling fluid, and then the heat exchange system is used, that is, under the action of the power pump, the cooled seawater flows through the inside of the cooling fluid through the sealed pipeline to take away the heat inside the cooling fluid, so as to realize the heat transfer to the server. Cooling cooling function.

However, with the passage of time, the filter at the seawater inlet in the heat exchange system is easily attached by seabed organisms, resulting in a decrease in the amount of seawater used for cooling and affecting the cooling effect. In severe cases, the filter may even be blocked, and the heat exchange system will not work properly.

SUMMARY OF THE INVENTION

Therefore, the technical problem to be solved by the present invention is to overcome the defect that the filter in the heat exchange system in the underwater data in the prior art is easy to block and cause the cooling effect to decrease, thereby providing a heat exchange system, data cabin, underwater data center.

In order to solve the above problems, the present invention provides a heat exchange system, which is suitable for dissipating heat to a data center, including a water inlet pipeline, a filter and a power pump are arranged on the water inlet pipeline, and at least two of the water inlet pipelines are arranged in parallel on the water inlet of the heat exchange system;

The backflushing pipeline is connected to the two water inlet pipelines, the water inlet end of the backflushing pipeline is connected to the rear end of the power pump on the water inlet pipeline, and the water outlet end of the backflushing pipeline is connected to the The front end of the power pump on the other said water inlet pipeline.

Optionally, it also includes a pressure difference detection device disposed at both ends of the power pump, and the pressure difference detection device controls the opening and closing of the power pump according to the change of the pressure difference.

Optionally, a timer is also included, and the timer is used to detect the working time of the power pump.

Optionally, at least two of the filters are arranged in parallel on the water inlet pipeline.

Optionally, in the direction of fluid flow, at least two layers of filter elements are arranged side by side and at intervals in the filter.

Optionally, a disinfection device is also provided in the filter.

Optionally, the disinfection device is configured as a UV disinfection lamp.

Optionally, a first closing valve is provided on the backflushing pipeline.

Optionally, a first one-way valve is provided on the backflushing pipeline.

Optionally, the water inlet pipeline further includes a second one-way valve disposed between the water inlet and the power pump.

Optionally, the water inlet pipeline further includes a second closing valve disposed between the filter and the power pump.

The present invention also provides a data cabin, comprising at least one heat exchange system described in any one of the above.

The present invention also provides an underwater data center, comprising at least one data cabin as described above.

The technical scheme of the present invention has the following advantages:

1. The heat exchange system in the present invention is suitable for radiating heat to the data center, including a water inlet pipeline, a filter and a power pump are arranged on the water inlet pipeline, and at least two water inlet pipelines are arranged in parallel on the water inlet of the heat exchange system; The flushing pipeline is connected to two water inlet pipelines. The water inlet end of the recoil pipeline is connected to the rear end of the power pump on one water inlet pipeline, and the water outlet end of the recoil pipeline is connected to the power pump on the other water inlet pipeline. front end.

In the heat exchange system of the present invention, when heat dissipation is normally performed, the recoil pipeline is closed, and at least two water inlet pipelines pump low-temperature seawater into the heat exchange system under the action of the power pump, and pass through the heat exchange system. The water outlet flows out and circulates to realize the heat dissipation of the data center. When the heat exchange system has been working for a period of time and the filter on the water inlet pipe needs to be cleaned, open the backflush pipe and close the water inlet pipe connected to the water outlet of the backflush pipe. Under the action of the power pump, part of the fluid in the water pipeline enters the heat exchange system to continue to realize the heat dissipation function, and part of the fluid flows into the filter in the closed water inlet pipeline through the backflushing pipeline to realize the filtering effect. The backwash of the filter can be used to clean the impurities or microorganisms attached to the filter. When it is necessary to clean different filters, repeating the above operation process can realize the cleaning of all filters in sequence.

2. The heat exchange system of the present invention further includes a differential pressure detection device disposed at both ends of the power pump, and the differential pressure detection device controls the opening and closing of the power pump according to the change of the differential pressure. When there are too many microorganisms or impurities attached to the filter, the flow of water flowing through the filter decreases, and the pressure difference between the front and rear of the power pump increases. According to the change of the pressure difference detected by the pressure difference detection device, the filter can be judged. the blockage condition, so that the heat exchange system controls when the backflushing line is opened to flush the filter.

3. The heat exchange system in the present invention also includes a timer, which is used to detect the working time of the power pump. In some embodiments, in order to simplify the control of the heat exchange system, a timer is installed on it, and the timer will count the working mode of the heat exchange system. For example, when the heat exchange system works for three hours, it will automatically enter the A working mode for rinsing the filter. When the filter was flushed for 15 minutes, the backflushing circuit was closed again, and the heat exchange system returned to the normal cooling mode of operation.

4. In the heat exchange system of the present invention, at least two filters are arranged in parallel on the water inlet pipeline, and the arrangement of multiple filters can speed up the filtration efficiency of the water flow, increase the water flow at the water inlet of the power pump, and improve the pumping efficiency. The flow rate is increased, thereby improving the heat exchange efficiency in the entire heat exchange system.

5. In the heat exchange system of the present invention, in the direction of fluid flow, at least two layers of filter elements are arranged side by side in the filter. etc., there are also various microorganisms, etc., which are in the protection of microorganisms in the marine ecosystem and do not destroy the ecological balance at the location of the data center, except that there are conventional filter elements in the filter, such as activated carbon filter elements or large-diameter filters. , Also set up a precision filter element, such as RO membrane reverse osmosis filter element, etc., to block the microorganisms on the seabed outside the filter and prevent them from entering the heat exchange system.

6. In the heat exchange system of the present invention, a sterilizing device is also provided in the filter, and when the water flow in the seabed or the river bottom is pumped, there are bacteria, viruses, etc. in the water flow, which will be attached to the filter, Over time, the filter element will be corroded, or the sanitation level at the filter will be lowered, which is not conducive to the cleaning of the filter by subsequent personnel. Therefore, a disinfection device is installed to disinfect the bacteria or viruses mentioned above.

7. The heat exchange system in the present invention is provided with a first shut-off valve on the backflushing pipeline, so that when the heat exchange system does not need to clean the filter, the backflushing pipeline is closed to perform conventional heat dissipation work.

8. The heat exchange system in the present invention is provided with a first one-way valve on the backflushing pipeline, which can prevent the back-end pipeline of the filter being flushed due to excessive blockage at the filter position during reverse flushing. The water pressure in the pump is too high, causing backflow problems and damage to the power pump.

9. In the heat exchange system of the present invention, the water inlet pipeline further comprises a second one-way valve arranged between the water inlet and the power pump. On the one hand, it can prevent the problem of backflow of water in the water inlet; on the other hand, it can prevent the problem of serial flow between multiple water inlet pipes connected in parallel on the same water inlet.

10. Optionally, in the heat exchange system of the present invention, the water inlet pipeline also includes a second shut-off valve arranged between the filter and the power pump to control the on-off of the water inlet pipeline to facilitate subsequent reverse flushing. operate.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of the heat exchange system in Embodiment 1 provided by the present invention.

Description of reference numbers:

1-water inlet pipeline; 11-filter; 12-power pump; 13-second one-way valve; 14-second closing valve;

2-backflushing pipeline; 21-first shut-off valve; 22-first one-way valve.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

As shown in FIG. 1 , a heat exchange system provided in this embodiment is suitable for dissipating heat to a data center, and includes a water inlet pipe 1 . The water inlet pipe 1 is provided with a filter 11 and a power pump 12 , and at least two inlet pipes are provided on the water inlet pipe 1 . The water pipeline 1 is arranged in parallel on the water inlet of the heat exchange system; the recoil pipeline 2 is connected to the two water inlet pipelines 1, and the water inlet end of the recoil pipeline 2 is connected to the power pump 12 on the water inlet pipeline 1. At the rear end, the water outlet end of the recoil pipeline 2 is connected to the front end of the power pump 12 on the other water inlet pipeline 1 .

The heat exchange system in this embodiment is used in the subsea data center, and is used for cooling the servers in the subsea data center. As a variant embodiment, it is also possible to dissipate heat for a data center located at the bottom of a large river. When dissipating heat, the power pump in the heat exchange system pumps the low-temperature seawater to the pipelines in the heat exchange system, and the pipelines in which the seawater flows are deeply circulated inside the subsea data center to absorb the heat generated by the servers. , to achieve cooling of the server.

The heat exchange system in this embodiment has a water inlet and a water outlet, and a heat dissipation pipeline is connected between the water inlet and the water outlet. In order to realize additional introduction, a water inlet pipeline 1 is installed at the water inlet. The conventional water inlet pipeline 1 is directly in contact with the sea water. In the filter 11, the seawater enters the power pump 12 after being filtered, enters the pipeline for cooling the data center, and finally flows out from the water outlet of the heat exchange system.

The power pump 12 is a common water pump structure, which relies on the dynamic action of the rotating impeller to transfer the mechanical energy to the liquid and realize the flow of the liquid. As a variant, in some embodiments, a common positive displacement pump or the like can also be used.

In the heat exchange system in this embodiment, when heat dissipation is normally performed, the recoil pipeline is closed, and at least two water inlet pipelines 1 pump low-temperature seawater, etc., into the heat exchange system under the action of the power pump 12, and pass through The water outlet of the heat exchange system flows out and circulates to realize the heat dissipation of the data center. When the heat exchange system has been working for a period of time and the filter 11 on the water inlet pipe 1 needs to be cleaned, open the backflush pipe and close the water inlet pipe 1 connected to the water outlet of the backflush pipe. Under the action of the power pump 12, a part of the fluid in the closed water inlet pipeline 1 enters the heat exchange system to continue to realize the heat dissipation function, and a part reversely flows into the closed water inlet pipeline 1 through the recoil pipeline. In the filter 11 , backwashing of the filter 11 is realized, thereby realizing the cleaning of impurities or microorganisms attached to the filter 11 . When different filters 11 need to be cleaned, the above-mentioned operation process can be repeated to realize the cleaning of all the filters 11 in sequence.

In order to show the working principle of the heat exchange system in the present invention more clearly, in this embodiment, only two water inlet pipes 1 are used as an example for illustration, and other numbers of water inlet pipes 1 also fall within the protection scope of the present invention. Inside. And in order to facilitate the subsequent distinction of the two water inlet pipelines 1, the suffixes a and b are respectively defined in this embodiment, and the same suffixes are also added to the devices arranged on them. Specifically as shown in Figure 1.

As shown in Figure 1, two water inlet pipes 1 are connected in parallel at the water inlet of the heat exchange system. For the pipeline shared by the water pipeline, the diameter of the pipeline in the shared part can be set larger to ensure that when the two water inlet pipelines enter water at the same time, the incoming water can be exported in time.

On the basis of the above embodiment, as a further limitation, as shown in FIG. 1 , a first closing valve 21 is provided on the recoil pipeline 2 , and the first closing valve 21 can be a common opening and closing valve. As a modification, In order to facilitate control, an electromagnetic on-off valve can be used to close the recoil pipeline 2 when the heat exchange system does not need to clean the filter 11 to perform conventional heat dissipation work.

On the basis of the above embodiment, as a further limitation, as shown in FIG. 1 , the backflushing pipeline 2 is provided with a first one-way valve 22, which can prevent the backflushing from being If the blockage is too serious, the water pressure in the pipeline at the rear end of the filter 11 to be flushed will be too high, resulting in a backflow problem and damage to the power pump 12 .

On the basis of the above-mentioned embodiment, as a further limitation, as shown in FIG. 1 , the water inlet pipeline 1 further includes a second one-way valve 13 arranged between the water inlet and the power pump 12 . On the other hand, it can prevent the problem of serial flow between multiple water inlet pipes 1 connected in parallel on the same water inlet.

On the basis of the above embodiment, as a further limitation, as shown in FIG. 1 , the water inlet pipeline 1 further includes a second closing valve 14 arranged between the filter 11 and the power pump 12 to control the flow of the water inlet pipeline 1 . On and off to facilitate subsequent backwash operations.

Therefore, the heat exchange system in Figure 1 has the following working process:

Conventional heat dissipation mode: the first closing valves 21a and 21b are closed, and the water inlet pipes 1a and 1b are not connected at this time, the second opening and closing valves 14a and 14b are opened, the power pumps 12a and 12b work, and the seawater flows into the heat through 11a and 11b. In the exchange system, heat dissipation processing is performed on the heat exchange system.

As another operation method, according to the cooling requirements of the data center, only one water inlet pipe 1a or 1b can be controlled to open, and the other water inlet pipes 1 can be closed to control the cooling effect and save energy.

Backwash filter 11a mode: the power pump 12b works normally, the power pump 12a is closed, the first on-off valve 21a is closed, the first on-off valve 21b is opened, the second on-off valve 14b is opened, and the second on-off valve 14a At this time, under the pumping action of the power pump 12b, a part of the seawater flows into the water inlet through the second one-way valve 13b through the filter 11b, and a part enters the filter 11a through the one-way valve 22b, so as to realize the filter 11a. backflush.

Backwash filter 11b mode: the power pump 12a works normally, the power pump 12b is closed, the first on-off valve 21b is closed, the first on-off valve 21a is opened, the second on-off valve 14a is opened, and the second on-off valve 14b At this time, under the pumping action of the power pump 12a, part of the seawater flows through the filter 11a into the water inlet through the second one-way valve 13a, and a part enters the filter 11b through the one-way valve 22a, so that the filter 11b backflush.

In this embodiment, two water inlet pipelines 1 are used as examples. In order to realize the reverse flushing of the filters on the two pipelines, two backflushing pipelines 2 are provided.

On the basis of the above embodiment, as a further limitation, a differential pressure detection device disposed at both ends of the power pump 12a or 12b, such as a common differential pressure detector, is also included, which is connected in parallel with both ends of the power pump 12 . The differential pressure detection device controls the opening and closing of the power pump 12 according to changes in the differential pressure. Specifically, when there are too many microorganisms or impurities attached to the filter 11, the flow of water flowing through the filter 11 is reduced, and the pressure difference value before and after the power pump 12 becomes larger. According to the change of the pressure difference value detected by the pressure difference detection device In this case, the blockage of the filter 12 can be judged, so that the heat exchange system can control when the backflushing pipeline is opened to flush the filter. As a specific embodiment, when the power pump 12 set in the heat exchange system is in the above-mentioned conventional heat dissipation mode, the maximum allowable pressure at both ends of the power pump 12 is 10MP. When the pressure at the end is greater than 10MP, the heat exchange system is controlled to enter the flushing mode described above.

As a variant embodiment, a timer is also included, and the timer is used to detect the working time of the power pump 12 . In order to simplify the control of the heat exchange system, a timer is installed on it, and the timer will count the working mode of the heat exchange system. Enters the working mode for flushing the filter 12 . When the filter 12 has been flushed for fifteen minutes, the backflushing circuit is closed again, and the heat exchange system returns to the normal cooling mode.

On the basis of the above embodiment, as a further limitation, at least two filters 11 are arranged on the water inlet pipeline 1 in parallel. The arrangement of multiple filters 11 can speed up the filtration efficiency of the water flow, increase the water flow at the water inlet of the power pump 12, increase the pumping flow, and further improve the heat exchange efficiency in the entire heat exchange system.

On the basis of the above embodiment, as a further limitation, in the fluid flow direction, at least two layers of filter elements are arranged side by side in the filter 11 at intervals. When the water flow in the seabed or river bottom is pumped, in addition to large weeds, stones, etc., there are also various microorganisms, etc., which are in the protection of microorganisms in the marine ecosystem and do not damage the ecology at the data center location. Balance, in addition to the conventional filter element, such as activated carbon filter element or a large-diameter filter screen, the filter 11 is also provided with a precision filter element, such as RO membrane reverse osmosis filter element, etc. into the heat exchange system.

On the basis of the above embodiment, as a further limitation, a sterilizing device is also installed in the filter 11 . When the water flow in the seabed or river bottom is pumped, there are still bacteria, viruses, etc. in the water flow, which will adhere to the filter. After a long time, the filter element will be corroded, or the hygiene level of the filter will be lowered. , it is not conducive to the cleaning of the filter by subsequent personnel, so a disinfection device is set to disinfect the bacteria or viruses in the above. The disinfection device is constructed as an ultraviolet disinfection lamp, which is low in cost and simple in installation.

Example 2

This embodiment provides a data cabin, including: at least one heat exchange system in the above-mentioned Embodiment 1, a part of the heat exchange system is arranged inside the data cabin, and the water inlet and the water outlet of the heat exchange system are arranged in the data cabin. External to facilitate the import and export of seawater. The design of the number of heat exchange systems can be adaptively designed according to the heat dissipation requirements of each data compartment.

Example 3

This embodiment provides an underwater data center, specifically an underwater data center, which includes at least one data cabin described in Embodiment 2 above, and has all its technical advantages, which will not be repeated here. One more elaboration.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (13)

1. A heat exchange system, suitable for radiating heat to a data center, comprising a water inlet pipeline (1) provided with a filter (11) and a power pump (12) on the water inlet pipeline (1), characterized in that, At least two of the water inlet pipelines (1) are arranged in parallel on the water inlet of the heat exchange system; The recoil pipeline (2) is connected to the two water inlet pipelines (1), and the water inlet end of the recoil pipeline (2) is connected to a power pump (12) on the water inlet pipeline (1). ), the water outlet end of the recoil pipeline (2) is connected to the front end of the power pump (12) on the other water inlet pipeline (1). 2. The heat exchange system according to claim 1, characterized in that it further comprises a differential pressure detection device disposed at both ends of the power pump (12), the differential pressure detection device controls the Opening and closing of the power pump (12). 3. The heat exchange system according to claim 1, further comprising a timer for detecting the working time of the power pump (12). 4. The heat exchange system according to any one of claims 1-3, characterized in that, at least two of the filters (11) are arranged in parallel on the water inlet pipeline (1). 5. The heat exchange system according to claim 4, characterized in that, in the fluid flow direction, at least two layers of filter elements are arranged side by side in the filter (11) at intervals. 6. The heat exchange system according to claim 5, characterized in that, a disinfection device is further provided in the filter (11). 7. The heat exchange system of claim 6, wherein the disinfection device is configured as an ultraviolet disinfection lamp. 8. The heat exchange system according to any one of claims 1-3 and 5-7, wherein a first closing valve (21) is provided on the backflushing pipeline (2). 9. The heat exchange system according to any one of claims 1-3 and 5-7, wherein a first check valve (22) is provided on the backflushing pipeline (2). 10. The heat exchange system according to any one of claims 1-3 and 5-7, wherein the water inlet pipeline (1) further comprises a power pump (12) disposed at the water inlet and the power pump (12) The second one-way valve (13) in between. 11. The heat exchange system according to any one of claims 1-3, 5-7, characterized in that, the water inlet pipeline (1) further comprises a filter (11) and a power pump arranged on the filter (11) Second shut-off valve (14) between (12). 12. A data cabin, characterized in that it comprises: At least one heat exchange system according to any one of claims 1-11. 13. An underwater data center, comprising: At least one data compartment as claimed in claim 12.

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