CN116209204A

CN116209204A - Server cabinet and liquid immersion cooling system

Info

Publication number: CN116209204A
Application number: CN202111444991.9A
Authority: CN
Inventors: 居静; 吴四海; 陆涛; 王正华; 冯淑琴; 刘交通; 崔振军; 何剑荣
Original assignee: Beijing Youzhuju Network Technology Co Ltd; Hebei Qinhuai Data Co Ltd
Current assignee: Beijing Youzhuju Network Technology Co Ltd; Hebei Qinhuai Data Co Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2023-06-02

Abstract

The application discloses a server cabinet and a liquid immersion cooling system, comprising a cabinet body and an upper cover; the cabinet body is provided with a cavity, an opening of the cavity is arranged corresponding to the upper cover, and the upper cover can cover or open the opening of the cavity; a circulating water outlet head and a circulating water inlet head are arranged in the cavity, and the circulating water outlet head and the circulating water inlet head are respectively positioned at two ends in the cavity; the circulating water outlet head is used for discharging the flowing medium in the cavity, and the circulating water inlet head is used for injecting the flowing medium into the cavity. The application can solve the problem of poor refrigeration of the existing server.

Description

Server cabinet and liquid immersion cooling system

Technical Field

The present application relates to the field of server equipment refrigeration, and in particular, to a server cabinet and a liquid immersion cooling system.

Background

The existing server and data center adopts a circulating air cooling mode, and equipment such as the server is cooled by cold air sent by a refrigerating unit; however, with industry development and improvement of power density, the cooling capacity of the circulating air cooling mode is approaching to the limit, and cannot meet the cooling requirement of high-power density machine room arrangement.

With the rapid development of cloud computing, requirements on server performance are increasing. The performance of the server is improved, the power consumption of the cabinet is increased in multiple, the power density of the cabinet of the data center is improved by multiple in recent years, and the traditional circulating air cooling heat dissipation cannot effectively dissipate heat of densely arranged servers.

Therefore, based on the above limitations, it is necessary to provide a new cooling method for cooling the machine room server device.

Disclosure of Invention

An object of the present application is to provide a server cabinet and liquid immersion cooling system, which can solve the problem of poor refrigeration of the existing server.

In order to achieve the above object, an aspect of the present application provides a server cabinet, including a cabinet body and an upper cover; the cabinet body is provided with a cavity, an opening of the cavity is arranged corresponding to the upper cover, and the upper cover can cover or open the opening of the cavity;

a circulating water outlet head and a circulating water inlet head are arranged in the cavity, and the circulating water outlet head and the circulating water inlet head are respectively positioned at two ends in the cavity; the circulating water outlet head is used for discharging the flowing medium in the cavity, and the circulating water inlet head is used for injecting the flowing medium into the cavity.

As a further improvement of the above technical scheme: the circulating water outlet head comprises a first water outlet head and a second water outlet head; the circulating water inlet head comprises a first water inlet head and a second water inlet head; the first water outlet head and the first water inlet head are respectively positioned at two ends of the cavity; the second water outlet head and the second water inlet head are respectively positioned at two ends of the cavity.

As a further improvement of the above technical scheme: the circulating water outlet head is positioned below the circulating water inlet head.

As a further improvement of the above technical scheme: a separation component is detachably connected in the cavity, and divides the cavity into two placement areas; the first water inlet head and the second water outlet head are positioned on one side of the separation assembly, and the second water inlet head and the first water outlet head are positioned on the other side of the separation assembly.

As a further improvement of the above technical scheme: the separation component comprises a partition plate and two U-shaped plates; the two U-shaped plates are respectively connected to two sides of the interior of the cavity, and are oppositely arranged; the two ends of the partition plate are inserted into the two U-shaped plates; and a sealing gasket is arranged on the bottom surface of the partition plate.

As a further improvement of the above technical scheme: the first water inlet head comprises a strip-shaped pipe, and the strip-shaped pipe is arranged in parallel with the width direction of the cabinet body; one side of the strip-shaped pipe is provided with an interface which is communicated with the inside of the strip-shaped pipe and extends to the outside of the cabinet body; the other side of the strip-shaped pipe is provided with a plurality of water diversion openings, and the water diversion openings are arranged in a linear array along the width direction of the cabinet body; the first water outlet head, the second water outlet head, the first water inlet head and the second water inlet head have the same structure.

In order to achieve the above object, another aspect of the present application further provides a liquid immersion cooling system, including the server cabinet, the first heat exchanger, the second heat exchanger, and the external circulation loop;

two ends of the internal circulation part of the first heat exchanger are respectively communicated with the first water outlet head and the first water inlet head through a first pipeline; the first pipeline is connected with a first water pump in series, and the first water pump is used for driving the flowing medium to circulate between the internal circulation part of the first heat exchanger and the server cabinet;

two ends of the internal circulation part of the second heat exchanger are respectively communicated with the second water outlet head and the second water inlet head through second pipelines; the second pipeline is connected with a second water pump in series, and the second water pump is used for driving flowing media to circulate between the inner circulation part of the second heat exchanger and the server cabinet;

the external circulation parts of the first heat exchanger and the second heat exchanger are connected in parallel and then connected in series on the external circulation loop.

As a further improvement of the above technical scheme: one end of the outer circulation part of the first heat exchanger and one end of the outer circulation part of the second heat exchanger are respectively provided with a switch valve.

As a further improvement of the above technical scheme: the external circulation loop comprises an external circulation water pump, external heat dissipation equipment and a third pipeline; the third pipeline is connected end to end, and the external circulating water pump and the external heat dissipation device are connected in series on the third pipeline.

As a further improvement of the above technical scheme: the first heat exchanger and the second heat exchanger are plate heat exchangers; the flowing medium adopts perfluorinated compounds; the outer heat dissipation device adopts a closed cooling tower.

Therefore, according to the technical scheme provided by the application, the cooling effect can be improved by placing the server equipment into the server cabinet with the circulating cooling flowing medium for cooling; meanwhile, two groups of water outlet heads and water inlet heads are arranged to form two internal circulation, so that alternate refrigeration or selectable starting refrigeration can be performed, and the device has multiple modes; the separation assembly is also arranged, when the two internal circulations run simultaneously, the regional refrigeration can be carried out, and the refrigeration effect is improved; furthermore, the water outlet head and the water inlet head are respectively positioned at two ends, and are provided with a plurality of water diversion openings which are arranged in a linear array along the width direction of the cabinet body, so that the circulation is more uniform, and uneven refrigeration is avoided;

and the internal circulation refrigeration and the external circulation refrigeration of the server cabinet are separated, and the heat exchange is performed through the heat exchanger, so that the pollution of flowing media of the internal circulation refrigeration is avoided, and the heat exchange effect and the normal operation of an internal server are ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a server rack in one embodiment provided herein;

FIG. 2 is a schematic diagram of a portion of a server rack in one embodiment provided herein;

FIG. 3 is a schematic diagram of a liquid immersion cooling system in one embodiment provided herein;

FIG. 4 is a flow diagram of a flow medium within a server enclosure in one embodiment;

FIG. 5 is a schematic flow diagram of a flow medium within a server enclosure in another embodiment;

FIG. 6 is a schematic flow diagram of a flow medium within a server enclosure in yet another embodiment;

in the figure: 1. a cabinet body; 11. a cavity; 2. an upper cover; 31. a first water outlet head; 32. a second water outlet head; 41. a first water inlet head; 411. a strip-shaped tube; 412. an interface; 413. a water diversion port; 42. a second water inlet head; 5. a partition assembly; 51. a partition plate; 52. a U-shaped plate; 53. a sealing gasket; 6. a first heat exchanger; 61. a first water pump; 7. a second heat exchanger; 71. a second water pump; 8. a switch valve; 91. an external circulating water pump; 92. an external heat dissipating device; 93. and a third pipeline.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings. Terms such as "upper," "lower," "first end," "second end," "one end," "the other end," and the like as used herein to refer to a spatially relative position are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Furthermore, the terms "mounted," "disposed," "provided," "connected," "slidingly connected," "secured," and "sleeved" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. It should be apparent that the embodiments described herein are only some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which are within the scope of the protection of the present application, will be within the skill of the art without undue effort.

As shown in fig. 1, 2, 4, 5 and 6, in one implementation, a server cabinet is mainly used for installing and placing server equipment and refrigerating the server equipment, and comprises a cabinet body 1 and an upper cover 2; the cabinet body 1 is provided with a cavity 11, a flowing medium is filled in the cavity 11, an opening of the cavity 11 is arranged corresponding to the upper cover 2, and the upper cover 2 can cover or open the opening of the cavity 11; wherein the opening of the cavity 11 can be oriented in any direction, and the upper cover 2 is used for sealing the opening so as to prevent flowing medium in the cavity from flowing out; alternatively, in practical use, the cabinet body 1 comprises a bottom plate and four side plates, the cavity 11 is an area formed by the bottom plate and the four side plates, and the opening of the cavity 11 is opposite to the bottom plate; one end of the upper cover 2 is hinged to the top end of one side plate, so that an opening of the cavity 11 can be closed or opened;

of course, in order to facilitate the installation of the server device, a plurality of positioning and clamping structures (not shown in the figure) are further arranged inside the server cabinet;

in order to realize the circulation flow of the flowing medium in the cavity 11, so that the circulating flow and the external circulation loop exchange heat and circulate refrigeration through the heat exchanger, the circulating water outlet head and the circulating water inlet head are arranged in the cavity 11, and are respectively positioned at two ends in the cavity 11, so that the flowing medium in the cavity 11 can be circulated fully; the circulating water outlet head is used for discharging the flowing medium in the cavity 11, and the circulating water inlet head is used for injecting the flowing medium into the cavity 11, so that the flowing medium internal circulation is formed.

Preferably, the circulating water outlet head comprises a first water outlet head 31 and a second water outlet head 32; the circulating water inlet head comprises a first water inlet head 41 and a second water inlet head 42; the first water outlet head 31 and the first water inlet head 41 are respectively positioned at two ends of the cavity 11; the second water outlet head 32 and the second water inlet head 42 are respectively located at two ends of the cavity 11, and the circulating water outlet head is located below the circulating water inlet head, so that two refrigeration internal cycles are formed, and alternate refrigeration can be performed, specifically referring to fig. 5 and 6, the alternate refrigeration operation can be performed, and the arrow in the figure indicates the circulation direction of the flowing medium.

Further, referring specifically to fig. 4, a partition component 5 is detachably connected in the cavity 11, and the partition component 5 divides the cavity 11 into two placement areas; the first water inlet head 41 and the second water outlet head 32 are located on one side of the partition assembly 5, and the second water inlet head 42 and the first water outlet head 31 are located on the other side of the partition assembly 5.

The partition assembly 5 includes a partition plate 51 and two U-shaped plates 52; the two U-shaped plates 52 are respectively connected to two sides of the interior of the cavity 11, and the two U-shaped plates 52 are oppositely arranged, so that the connection of the partition plate 51 is facilitated; two ends of the partition plate 51 are inserted into the two U-shaped plates 52; the bottom surface of the partition plate 51 is provided with a gasket 53 so as to ensure contact tightness between the partition plate 51 and the bottom surface of the chamber 11.

In order to ensure the uniformity of the circulation of the flowing medium, the first water inlet head 41 of the present application comprises a strip-shaped pipe 411, and the strip-shaped pipe 411 is arranged in parallel with the width direction of the cabinet body 1; one side of the strip pipe 411 is provided with an interface 412 which is communicated with the inside of the strip pipe 411 and extends to the outside of the cabinet 1, thereby facilitating the connection of an external pipeline with the strip pipe 411; the other side of the strip-shaped pipe 411 is provided with a plurality of water diversion openings 413, and the water diversion openings 413 are arranged in a linear array along the width direction of the cabinet body 1, so that the flowing medium which is injected and discharged is dispersed, the flowing medium is circulated more uniformly, and the refrigerating effect is improved; the first water outlet head 31, the second water outlet head 32, the first water inlet head 41, and the second water inlet head 42 have the same structure.

As shown in fig. 3, based on the same inventive concept, the present application also provides a liquid immersion cooling system, which in one possible embodiment comprises the above-described server cabinet, first heat exchanger 6, second heat exchanger 7 and external circulation loop;

two ends of the internal circulation part of the first heat exchanger 6 are respectively communicated with the first water outlet head 31 and the first water inlet head 41 through a first pipeline; the first pipeline is connected with a first water pump 61 in series, and the first water pump 61 is used for driving flowing medium to circulate between the inner circulation part of the first heat exchanger 6 and the server cabinet, namely driving the flowing medium to enter the server cabinet through a first water inlet head 41, then discharging the flowing medium from a first water outlet head 31, flowing the flowing medium to the inner circulation part of the first heat exchanger 6, and then entering the first water inlet head 41 through the first water pump 61;

two ends of the internal circulation part of the second heat exchanger 7 are respectively communicated with the second water outlet head 32 and the second water inlet head 42 through second pipelines; the second pipeline is connected in series with a second water pump 71, and the second water pump 71 is used for driving the flowing medium to circulate between the inner circulation part of the second heat exchanger 7 and the server cabinet, that is, driving the flowing medium to enter the server cabinet through the second water inlet head 42, then discharging the flowing medium from the second water outlet head 32 to the inner circulation part of the second heat exchanger 7 for heat exchange, and then flowing back to the second water inlet head 42 through the second water pump 71; the external circulation parts of the first heat exchanger 6 and the second heat exchanger 7 are connected in parallel and then connected in series on the external circulation loop.

It should be noted that the above-mentioned inner circulation portion of the first heat exchanger 6 and inner circulation portion of the second heat exchanger 7 refer to heat exchangers existing in the market, such as plate heat exchangers, which include two pipes for exchanging heat with a liquid flowing through the two pipes, one of which is named inner circulation portion and the other one is named outer circulation portion for convenience of description of the present application

Further, one end of the outer circulation part of the first heat exchanger 6 and one end of the outer circulation part of the second heat exchanger 7 are respectively provided with a switch valve 8, and the switch valve 8 controls the on-off of the corresponding shunt.

Optionally, the external circulation loop provided by the present application includes an external circulation water pump 91, an external heat dissipation device 92, and a third pipeline 93; the third pipeline 93 is connected end to end, and the external circulating water pump 91 and the external heat dissipating device 92 are connected in series on the third pipeline 93.

The first heat exchanger 6 and the second heat exchanger 7 are both plate heat exchangers; the flowing medium adopts perfluorinated compounds; the external heat sink 92 employs a closed cooling tower.

There may be two use cases for the liquid immersion cooling system of the present application:

case one: referring specifically to fig. 3, 5 and 6, the first heat exchanger 6 and the second heat exchanger 7 are alternately used without providing the partition member 5, thereby avoiding long-time duty cycles of the first water pump 61 and the second water pump 71; the working process is that after the first water pump 61 works for a period of time, the second water pump 71 is opened to continue working, and the working process is circulated in turn; it should be noted that when the first water pump 61 or the second water pump 71 is operated, the corresponding switching valve 8 is opened, and the other switching valve 8 is closed.

And a second case: referring specifically to fig. 3 and 4, a separation assembly 5 is provided to divide the cavity 11 into two placement areas, and the first heat exchanger 6 and the second heat exchanger 7 are used together to improve the refrigerating effect; the working flow is that, for one area, the first water inlet head 41 is used for water inlet, and the second water outlet head 32 is used for water discharge to form a circulation; for the other region, the second water inlet head 42 is used for water inlet, the first water outlet head 31 is used for water discharge to form a circulation, so that the circulation of flowing medium in the cavity 11 is accelerated, and the refrigerating effect is improved.

Therefore, according to the technical scheme provided by the application, the cooling effect can be improved by placing the server equipment into the server cabinet with the circulating cooling flowing medium for cooling; meanwhile, two groups of water outlet heads and water inlet heads are arranged to form two internal circulation, so that alternate refrigeration or selectable starting refrigeration can be performed, and the device has multiple modes; the separation assembly is also arranged, when the two internal circulations run simultaneously, the regional refrigeration can be carried out, and the refrigeration effect is improved; furthermore, the water outlet head and the water inlet head are respectively positioned at two ends, and are provided with a plurality of water diversion openings which are arranged in a linear array along the width direction of the cabinet body, so that the circulation is more uniform, and uneven refrigeration is avoided; and the internal circulation refrigeration and the external circulation refrigeration of the server cabinet are separated, and the heat exchange is performed through the heat exchanger, so that the pollution of flowing media of the internal circulation refrigeration is avoided, and the heat exchange effect and the normal operation of an internal server are ensured.

The foregoing description of the preferred embodiments of the present application is not intended to limit the invention to the particular embodiments of the present application, but to limit the scope of the invention to the particular embodiments of the present application.

Claims

1. The server cabinet is characterized by comprising a cabinet body (1) and an upper cover (2); the cabinet body (1) is provided with a cavity (11), an opening of the cavity (11) is correspondingly arranged with the upper cover (2), and the upper cover (2) can cover or open the opening of the cavity (11);

a circulating water outlet head and a circulating water inlet head are arranged in the cavity (11), and the circulating water outlet head and the circulating water inlet head are respectively positioned at two ends in the cavity (11); the circulating water outlet head is used for discharging the flowing medium in the cavity (11), and the circulating water inlet head is used for injecting the flowing medium into the cavity (11).

2. The server cabinet according to claim 1, wherein the circulating water outlet head comprises a first water outlet head (31) and a second water outlet head (32); the circulating water inlet head comprises a first water inlet head (41) and a second water inlet head (42);

the first water outlet head (31) and the first water inlet head (41) are respectively positioned at two ends of the cavity (11); the second water outlet head (32) and the second water inlet head (42) are respectively positioned at two ends of the cavity (11).

3. The server cabinet of claim 2, wherein the circulating water outlet head is located below the circulating water inlet head.

4. A server cabinet according to claim 2 or 3, wherein a separation assembly (5) is detachably connected in the cavity (11), the separation assembly (5) dividing the cavity (11) into two placement areas; the first water inlet head (41) and the second water outlet head (32) are positioned on one side of the separation assembly (5), and the second water inlet head (42) and the first water outlet head (31) are positioned on the other side of the separation assembly (5).

5. The server cabinet according to claim 4, wherein the partition assembly (5) comprises a partition plate (51) and two U-shaped plates (52);

the two U-shaped plates (52) are respectively connected to two sides of the interior of the cavity (11), and the two U-shaped plates (52) are oppositely arranged; two ends of the partition plate (51) are inserted into the two U-shaped plates (52); a sealing gasket (53) is arranged on the bottom surface of the partition plate (51).

6. The server cabinet according to claim 4, wherein the first water intake head (41) comprises a strip-shaped pipe (411), the strip-shaped pipe (411) being arranged in parallel with the widthwise direction of the cabinet body (1); one side of the strip-shaped pipe (411) is provided with an interface (412) which is communicated with the inside of the strip-shaped pipe (411) and extends to the outside of the cabinet body (1); the other side of the strip-shaped pipe (411) is provided with a plurality of water diversion openings (413), and the water diversion openings (413) are arranged in a linear array along the width direction of the cabinet body (1);

the first water outlet head (31), the second water outlet head (32), the first water inlet head (41) and the second water inlet head (42) are identical in structure.

7. A liquid immersion cooling system, characterized by comprising a server cabinet according to claim 4, a first heat exchanger (6), a second heat exchanger (7) and an external circulation loop;

two ends of the internal circulation part of the first heat exchanger (6) are respectively communicated with the first water outlet head (31) and the first water inlet head (41) through a first pipeline; a first water pump (61) is connected in series on the first pipeline, and the first water pump (61) is used for driving the flowing medium to circulate between the inner circulation part of the first heat exchanger (6) and the server cabinet;

two ends of the internal circulation part of the second heat exchanger (7) are respectively communicated with the second water outlet head (32) and the second water inlet head (42) through second pipelines; a second water pump (71) is connected in series on the second pipeline, and the second water pump (71) is used for driving a flowing medium to circulate between an inner circulation part of the second heat exchanger (7) and the server cabinet;

the external circulation parts of the first heat exchanger (6) and the second heat exchanger (7) are connected in parallel and then connected in series on the external circulation loop.

8. Liquid immersion cooling system according to claim 7, characterized in that one of the ends of the outer circulation part of the first heat exchanger (6) and one of the ends of the outer circulation part of the second heat exchanger (7) are provided with an on-off valve (8), respectively.

9. The liquid immersion cooling system according to claim 8, wherein the external circulation circuit comprises an external circulation water pump (91), an external heat sink device (92) and a third pipe (93); the third pipeline (93) is connected end to end, and the external circulating water pump (91) and the external heat dissipation device (92) are connected in series on the third pipeline (93).

10. A liquid submerged cooling system according to claim 9, characterized in that the first heat exchanger (6) and the second heat exchanger (7) each employ plate heat exchangers; the flowing medium adopts perfluorinated compounds; the outer heat dissipation device (92) adopts a closed cooling tower.