CN112118715A

CN112118715A - Cabinet and cooling system with same

Info

Publication number: CN112118715A
Application number: CN202011130114.XA
Authority: CN
Inventors: 黄志波; 吕磊磊; 沈方奇; 陈静竹; 周子璇
Original assignee: Shanghai Enercomn Technology Co ltd
Current assignee: Shanghai Enercomn Technology Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2020-12-22
Anticipated expiration: 2040-10-21
Also published as: CN112118715B

Abstract

The invention provides a cabinet and a cooling system with the cabinet, comprising: a refrigeration unit (40) and a heat dissipation box body (8); the refrigeration unit (40) comprises a first pump (2), a first mixing valve (3), a first refrigerator (4) and a second mixing valve (5); the heat dissipation box body (8) comprises a mandrel (81) and at least one pipeline wound on the mandrel (81). The cooling system realized by the cabinet can flexibly switch different working modes, further saves energy, and reduces energy consumption and system maintenance cost.

Description

Cabinet and cooling system with same

Technical Field

The invention relates to the IT field, in particular to a cabinet and a cooling system with the cabinet.

Background

In recent years, with the increase of data volume of data centers, the arrangement of servers is becoming more and more dense. However, a large number of densely arranged servers may cause excessive heat generation. The heat in the cabinet is not easy to dissipate, and the operation of the data center is unstable. In the prior art, a cooling air conditioning system or a chilled water circulation loop system is arranged in a data center to cool a server, but the systems need to consume a large amount of energy for long-term operation and are not energy-saving enough.

Disclosure of Invention

In order to solve the above problems in the prior art, the technical solution provided by the embodiment of the present application is as follows:

a cabinet, comprising: a refrigeration unit 40 and a heat radiation box 8; the refrigeration unit 40 comprises a first pump 2, a first mixing valve 3, a first refrigerator 4 and a second mixing valve 5; a first interface 401, a second interface 402, a third interface 403 and a fourth interface 404 are respectively arranged on the side surface of the refrigeration unit 40; wherein the first interface 401 is used for connecting the radiator tank 8 and the second mixing valve 5, the second interface 402 is used for connecting the first cooling plate 1 and the first pump 2, the third interface 403 is used for connecting the first mixing valve 3 and the cooling tower 7, and the fourth interface 404 is used for connecting the second mixing valve 5 and the second pump 6; the radiator tank 8 includes a core shaft 81 and at least one pipe wound around the core shaft 81.

A cooling system, comprising: a cabinet, wherein the first cooling plate 1, the heat dissipation box 8 and the refrigeration unit 40 form a first cooling loop; the refrigeration unit 40 is externally connected with a second pump 6 and a cooling tower 7 through a third interface 403 and a fourth interface 404, and a second cooling loop is formed by the first cooling plate 1, the first pump 2, the first mixing valve 3, the cooling tower 7, the second pump 6, the second mixing valve 5 and the heat dissipation box body 8; also included within the refrigeration unit 40 is a control unit.

Compared with the prior art, the invention has the following beneficial effects: the cooling system realized by the cabinet can flexibly switch different working modes, further saves energy, and reduces energy consumption and system maintenance cost.

Drawings

FIG. 1 is a schematic view of a cabinet structure according to the present invention;

FIG. 2 is a cross-sectional schematic view of a cabinet of the present invention;

FIG. 3 is a schematic view of some embodiments of the present invention;

fig. 4 is a schematic diagram of a fourth embodiment of the present invention.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings and the detailed description.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import by those skilled in the art without departing from the spirit of this application and is therefore not limited to the specific implementations disclosed below.

The first embodiment is as follows:

fig. 1-3 are schematic structural diagrams of a cabinet according to a first embodiment of the present invention, which includes a refrigeration unit 40 and a heat dissipation box 8. The refrigeration unit 40 includes a first pump 2, a first mixing valve 3, a first refrigerator 4, and a second mixing valve 5. The first port 401, the second port 402, the third port 403, and the fourth port 404 are provided on the side surfaces of the refrigeration unit 40, respectively. The first interface 401 is used for connecting the radiator tank 8 and the second mixing valve 5, the second interface 402 is used for connecting the first cooling plate 1 and the first pump 2, the third interface 403 is used for connecting the first mixing valve 3 and the cooling tower 7, and the fourth interface 404 is used for connecting the second mixing valve 5 and the second pump 6. The radiator tank 8 includes a core shaft 81 and at least one pipe wound around the core shaft 81.

The refrigeration unit 40 and the radiator tank 8 are preferably detachably connected, so that the type of cooling circuit can be flexibly configured. The refrigeration Unit 40 may be configured by a CDU (Cooling Distribution Unit). The refrigeration unit 40 and the heat dissipation case 8 can be disassembled by using a snap, a screw, a bolt, etc. which are conventional in the art.

The top of the box is provided with a first expansion interface 84 and a second expansion interface 85 for expanding the functions of the box. The specific extended functionality will be further explained in embodiment four.

The first to fourth interfaces and the first to second expansion interfaces are preferably ball valves and are used for blocking refrigerants in the pipeline.

The first cooling plate 1 is a component with a water inlet at one end and a water outlet at the other end, and a pipeline for circulating a refrigerant is arranged inside the first cooling plate. The first cooling plate 1 acts directly on heat generating elements in the server, such as CPU or memory pellets. The first cooling plate 1 may be a plate type or a fin type.

As shown in fig. 2, a fan assembly 82 is disposed adjacent to the spindle 81, and the fan assembly 82 includes at least one fan for accelerating air flow. A boss 83 is arranged below the heat radiation box body 8, and an external thread is arranged on the boss 83. A groove is arranged below the mandrel 81, an internal thread is arranged in the groove, and the internal thread is matched with the external thread on the surface of the boss 83. The mandrel 81 can be disengaged from the radiator tank 8 for winding the pipeline by rotating the mandrel 81, as will be described further below.

In one embodiment of the present invention, as shown in fig. 3, a pipe is wound around the core shaft 81 in the heat radiation box 8, and thus the first cooling plate 1, the heat radiation box 8, and the refrigeration unit 40 form a first cooling circuit. The refrigeration unit 40 is externally connected with the second pump 6 and the cooling tower 7 through the third interface 403 and the fourth interface 404, and the first cooling plate 1, the first pump 2, the first mixing valve 3, the cooling tower 7, the second pump 6, the second mixing valve 5 and the heat dissipation box 8 form a second cooling loop.

A control unit (not shown) is also included within the refrigeration unit 40. The control unit is a printed circuit board assembly inside the refrigeration unit 40. The control unit comprises a processor, a memory and a sensor. The processor of the control unit generates a control signal by receiving a signal detected by the sensor. The control signals are used to control the operating states of the first pump 2, the first mixing valve 3, the first refrigerator 4, and the second mixing valve 5 in the refrigeration unit 40. The sensors include a temperature sensor and a humidity sensor for detecting real-time environmental conditions.

In the first operation mode, the control unit detects that the outdoor environment temperature is lower than the first preset threshold value through the sensor, the control unit controls the first mixing valve 3 to be communicated with the pipeline between the first pump 2 and the cooling tower 7, the second mixing valve 5 to be communicated with the pipeline between the heat radiation box body 8 and the second pump 6, the pipeline between the first refrigerator 4 and the heat radiation box body 8 is cut off by the second mixing valve 5, and the pipeline between the first refrigerator 4 and the first pump 2 is cut off by the first mixing valve 3. The first pump 2 and the second pump 6 work simultaneously to drive the refrigerant in the pipeline to circulate. The refrigerant absorbs the heat of the heating unit on the first cooling plate 1, then is primarily cooled through the heat dissipation box body 8, flows into the cooling tower for cooling again, and then returns to the first cooling plate 1. Preferably, the cooling tower 7 is disposed in an outdoor environment, where the outdoor environment temperature is lower than the refrigerant temperature at the water inlet of the cooling tower, so that the temperature of the heat generating unit can be continuously and cyclically lowered in the first operating mode. Under the first working mode, the first refrigerating machine 4 does not work, and only atomization spraying of the cooling tower is used for naturally cooling, so that the energy consumption of the cabinet can be obviously reduced.

The first predetermined threshold may be flexibly set for climatic conditions at the location of the cabinet, for example 25 ℃. The numerical values disclosed in the embodiments of the present invention are not limited.

Example two:

as shown in fig. 3, the system structure of the present embodiment is completely the same as that of the first embodiment. In the second operating mode, the control unit detects that the outdoor ambient temperature is higher than the first predetermined threshold value through the sensor, and then the control unit controls the first mixing valve 3 to communicate with the line between the first pump 2 and the cooling tower 7 and the line between the first refrigerator 4 and the first pump 2, and the second mixing valve 5 to communicate with the line between the radiator tank 8 and the second pump 6 and the line between the first refrigerator 4 and the radiator tank 8. The first pump 2 and the second pump 6 work simultaneously to drive the refrigerant in the pipeline to circulate. The refrigerant absorbs the heat of the heating unit on the first cooling plate 1 and then primarily cools through the heat dissipation box body 8, part of the refrigerant flows into the cooling tower 7 to cool again and then returns to the first cooling plate 1, and part of the refrigerant flows into the first refrigerator 4 and returns to the first cooling plate 1 after being cooled by the first refrigerator 4. In the second working mode, the first refrigerator 4 and the cooling tower 7 can work simultaneously, so that the energy consumption can be reduced while the refrigeration effect is ensured.

Example three:

as shown in fig. 3, the system structure of the present embodiment is completely the same as that of the first embodiment. In a third operating mode, the control unit controls the first mixing valve 3 to communicate with the line between the first refrigerator 4 and the first pump 2, blocking the line between the first pump 2 and the cooling tower 7, and the second mixing valve 5 to communicate with the line between the first refrigerator 4 and the radiator tank 8, blocking the line between the radiator tank 8 and the second pump 6. The first pump 2 and the second pump 6 work simultaneously to drive the refrigerant in the pipeline to circulate. The refrigerant absorbs the heat of the heating unit on the first cooling plate 1, is primarily cooled through the heat dissipation box body 8, completely flows into the first refrigerator 4, is cooled through the first refrigerator 4, and then returns to the first cooling plate 1. The third working mode is used as an optional mode, and a scheme that the refrigerating machine is used for cooling is provided for ensuring the refrigerating effect. The solution of the present embodiment provides more flexibility for the cooling mode of the cabinet in case of e.g. high outdoor temperature.

Example four:

as shown in fig. 4, in the fourth operation mode, the second cooling plate 11, the radiator tank 8, the third pump 9, and the second refrigerator 10 form a third cooling circuit. Two pipelines are alternately wound on the mandrel 81 of the heat radiation box body 8. One of the pipes is a part of the first cooling circuit or the second cooling circuit of any one of the first to third embodiments, and the other pipe is a part of the third cooling circuit.

The third cooling circuit is connected to the cabinet through a first expansion interface 84 and a second expansion interface 85 on the cabinet. A duct through which a refrigerant flows is disposed between the first expansion port 84 and the second expansion port 85 in the cabinet. As will be appreciated by those skilled in the art. The first expansion joint 84 and the second expansion joint 85 may not be necessary, and a part of the third cooling circuit may be directly wound around the mandrel 81 without passing through the joints.

The first cooling plate 1 and the second cooling plate 11 are arranged at different positions and there is a temperature difference between the first refrigerator 4 and the second refrigerator 10 resulting in a difference in the temperature of the refrigerant in the cooling circuit. For example, the first cooling plate 1 has an inlet water temperature of 33 ℃ and an outlet water temperature of 39 ℃. However, the inlet water temperature of the second cooling plate 11 is 42 ℃, the outlet water temperature is 60 ℃, in this embodiment, the pipeline with the outlet water temperature is alternately wound on the mandrel 81, so that the first cooling circuit or the second cooling circuit and the third cooling circuit generate heat exchange, and the outlet water temperature of 45 ℃ is generated together, so that the energy required by the third cooling circuit to be reduced to the set temperature can be greatly reduced, the load of the second refrigerator 10 can be reduced, and the energy consumption and the service life of the refrigerator can be saved.

The fourth operating mode of the present invention is particularly suitable for the use scene of the old machine room reconstruction, and the load of the original refrigerator can be reduced by directly winding the pipeline and another pipeline on the mandrel 81 without replacing the original refrigerator.

Although the present application has been described with reference to the preferred embodiments, it is not intended to limit the present application, and those skilled in the art can make variations and modifications without departing from the spirit and scope of the present application, therefore, the scope of the present application should be determined by the claims that follow.

Claims

1. A cabinet, comprising: a refrigeration unit (40) and a heat dissipation box body (8); the refrigeration unit (40) comprises a first pump (2), a first mixing valve (3), a first refrigerator (4) and a second mixing valve (5); the side surface of the refrigeration unit (40) is respectively provided with a first interface (401), a second interface (402), a third interface (403) and a fourth interface (404); wherein the first interface (401) is used for connecting a radiator tank (8) and a second mixing valve (5), the second interface (402) is used for connecting a first cooling plate (1) and a first pump (2), the third interface (403) is used for connecting a first mixing valve (3) and a cooling tower (7), and the fourth interface (404) is used for connecting the second mixing valve (5) and a second pump (6); the heat dissipation box body (8) comprises a mandrel (81) and at least one pipeline wound on the mandrel (81).

2. The cabinet of claim 1, wherein: the refrigeration unit (40) and the heat radiation box body (8) are detachably connected.

3. The cabinet of claim 1, wherein: the first cooling plate (1) is a part with a water inlet at one end and a water outlet at the other end, and a pipeline for circulating refrigerant is arranged inside the first cooling plate; the first cooling plate (1) acts directly on the heat generating units in the server.

4. The cabinet of claim 1, wherein: a fan assembly (82) is disposed adjacent the spindle (81), the fan assembly (82) including at least one fan for accelerating air flow.

5. The cabinet of claim 1, wherein: a boss (83) is arranged below the heat dissipation box body (8), and an external thread is arranged on the boss (83); a groove is formed below the mandrel (81), internal threads are arranged in the groove, and the internal threads are matched with the external threads on the surface of the protruding portion (83).

6. A cooling system, comprising: the cabinet of any one of claims 1 to 5, wherein the first cooling plate (1), the heat sink box (8), the refrigeration unit (40) form a first cooling circuit; the refrigeration unit (40) is externally connected with a second pump (6) and a cooling tower (7) through a third interface (403) and a fourth interface (404), and a second cooling loop is formed by the first cooling plate (1), the first pump (2), the first mixing valve (3), the cooling tower (7), the second pump (6), the second mixing valve (5) and the heat dissipation box body (8); the refrigeration unit (40) also includes a control unit therein.

7. The cooling system according to claim 6, wherein: the control unit detects that the outdoor environment temperature is lower than a first preset threshold value through a sensor, then the control unit controls a first mixing valve (3) to be communicated with a pipeline between a first pump (2) and a cooling tower (7), a second mixing valve (5) to be communicated with a pipeline between a heat dissipation box body (8) and a second pump (6), the pipeline between a first refrigerator (4) and the heat dissipation box body (8) is cut off by the second mixing valve (5), and the pipeline between the first refrigerator (4) and the first pump (2) is cut off by the first mixing valve (3).

8. The cooling system according to claim 6, wherein: the control unit detects that the outdoor environment temperature is higher than a first preset threshold value through the sensor, and then the control unit controls the first mixing valve (3) to be communicated with a pipeline between the first pump (2) and the cooling tower (7) and a pipeline between the first refrigerator (4) and the first pump (2), and controls the second mixing valve (5) to be communicated with a pipeline between the heat dissipation box body (8) and the second pump (6) and a pipeline between the first refrigerator (4) and the heat dissipation box body (8).

9. The cooling system according to claim 6, wherein: the control unit controls the first mixing valve (3) to be communicated with a pipeline between the first refrigerator (4) and the first pump (2) and to block the pipeline between the first pump (2) and the cooling tower (7), and the second mixing valve (5) to be communicated with a pipeline between the first refrigerator (4) and the heat dissipation box body (8) and to block the pipeline between the heat dissipation box body (8) and the second pump (6).

10. The cooling system according to claim 6, wherein: a third cooling loop is formed by the second cooling plate (11), the heat radiation box body (8), the third pump (9) and the second refrigerator (10); two pipelines are alternately wound on a mandrel (81) of the heat dissipation box body (8).