阅读说明：本技术 一种液浸式服务器机柜及其冷却系统 (Liquid immersion type server cabinet and cooling system thereof ) 是由 任宇宙 祝长宇 王树春 杨盈录 曾宪芳 于 2019-11-15 设计创作，主要内容包括：本发明公开了一种液浸式服务器机柜及其冷却系统,包括液浸机柜、服务器、换热器、自然冷却器、制冷装置、电磁阀、储液罐、液泵、冷却油、冷却介质和冷却介质管道。冷却油盛放在液浸机柜内,服务器和换热器浸没在冷却油中,换热器放置在两组服务器之间。本系统有自然冷却和部分自然冷却两种冷却模式,当室外温度较低时,运行自然冷却模式；当室外温度较高时,运行部分自然冷却模式,该两种模式根据室外温度和需求可以自动切换。液浸式服务器机柜及其冷却系统,冷却油与服务器直接接触换热,提高了服务器散热效率；充分利用自然冷源,与制冷装置联合制冷,降低了数据中心能耗。(The invention discloses a liquid immersion type server cabinet and a cooling system thereof. The cooling oil is contained in the liquid immersion cabinet, the servers and the heat exchanger are immersed in the cooling oil, and the heat exchanger is arranged between the two groups of servers. The system has two cooling modes of natural cooling and partial natural cooling, and when the outdoor temperature is lower, the system runs the natural cooling mode; when the outdoor temperature is high, a partial natural cooling mode is operated, and the two modes can be automatically switched according to the outdoor temperature and the requirement. The liquid immersion type server cabinet and the cooling system thereof have the advantages that the cooling oil is in direct contact with the server for heat exchange, so that the heat dissipation efficiency of the server is improved; the natural cold source is fully utilized, and the refrigeration device is used for combined refrigeration, so that the energy consumption of the data center is reduced.)

1. A liquid immersion type server cabinet and a cooling system thereof are characterized by comprising a liquid immersion cabinet, a server, a heat exchanger, a natural cooler, a refrigerating device, an electromagnetic valve, cooling oil, a cooling medium and a cooling medium pipeline; the cooling oil is contained in the liquid immersion cabinet; the server is immersed in cooling oil; the heat exchanger is immersed in the cooling oil and is placed between the two groups of servers; the inlet of the natural cooler is connected with the outlet of the heat exchanger through a cooling medium pipeline, the outlet of the natural cooler is connected with the inlet of the refrigerating device through a cooling medium pipeline, and the outlet of the refrigerating device is connected with the inlet of the heat exchanger through a cooling medium pipeline; the refrigerating device is connected with an electromagnetic valve in parallel; the cooling oil is non-conductive, non-volatile, non-flammable and non-corrosive electronic cooling liquid; the cooling medium is freon.

2. The cabinet for liquid-immersed servers and the cooling system thereof as claimed in claim 1, further characterized in that: one or two or more groups of servers are provided with one group of heat exchangers.

3. The cabinet for liquid-immersed servers and the cooling system thereof as claimed in claim 1, further characterized in that: the cooling medium ducts in the cabinet are arranged along the sides of the cabinet.

4. The cabinet for liquid-immersed servers and the cooling system thereof as claimed in claim 1, further characterized in that: the natural cooler is installed at a position higher than that of the heat exchanger.

5. The cabinet for liquid-immersed servers and the cooling system thereof as claimed in claim 1, further characterized in that: the natural cooler is installed at the same height as or lower than the heat exchanger.

6. The cabinet for liquid-immersed servers and the cooling system thereof as claimed in claim 1 or 5, further characterized in that: a liquid storage tank is arranged at the outlet of the electromagnetic valve, and a liquid pump is arranged between the liquid storage tank and the inlet of the heat exchanger.

7. The cabinet for liquid-immersed servers and the cooling system thereof as claimed in claim 1, further characterized in that: one or two or more cabinets are provided with a set of natural coolers.

8. The cabinet for liquid-immersed servers and the cooling system thereof as claimed in claim 1, further characterized in that: the top of the cabinet is provided with a top cover plate which is a glass cover plate.

9. The cabinet for liquid-immersed servers and the cooling system thereof as claimed in claim 1, further characterized in that: the bottom of the cabinet is provided with casters.

10. The cabinet for liquid-immersed servers and the cooling system thereof as claimed in claim 1, further characterized in that: the system has two cooling modes of natural cooling and partial natural cooling, and when the outdoor temperature is lower, the system runs the natural cooling mode; when the outdoor temperature is high, a partial natural cooling mode is operated, and the two modes are automatically switched according to the outdoor temperature and the requirement.

Technical Field

The invention relates to the field of server cabinets, in particular to a liquid immersion type server cabinet.

Background

With the development of big data and cloud computing technology, data centers are more and more constructed, and the power consumption of the data centers is more and more increased while the data centers output computing power. The heating temperature of the server can reach more than 60 ℃, heat dissipation needs to be carried out through auxiliary equipment, and if the heat dissipation effect is poor, the server is very easy to crash due to local overheating inside, and the normal operation of the data center is affected. Therefore, server heat dissipation is an important issue that needs to be addressed by data centers. Most of traditional data centers adopt air conditioners for air cooling heat dissipation, a large amount of energy needs to be consumed, and the heat dissipation efficiency is low.

The liquid immersion type cooling is to directly place the server in cooling liquid for heat exchange and cooling, and the cooling liquid is in direct contact with the server for heat exchange, so that the heat exchange efficiency is high. And the temperature of the cooling liquid after heat exchange is high, so that the natural cooling source can be fully utilized to cool the cooling liquid, and the energy consumption of the data center is reduced.

Disclosure of Invention

The invention aims to provide a liquid immersion type server cabinet and a cooling system thereof, which adopt a natural cooling technology, fully utilize a natural cold source and solve the problems of poor heat dissipation efficiency of a server and high energy consumption of a data center.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a liquid immersion type server cabinet and a cooling system thereof comprise a liquid immersion type server cabinet, a server, a heat exchanger, a natural cooler, a refrigerating device, an electromagnetic valve, cooling oil, a cooling medium and a cooling medium pipeline. The cooling oil is contained in the liquid immersion cabinet; the server is immersed in cooling oil; the heat exchanger is immersed in the cooling oil and is placed between the two groups of servers; the inlet of the natural cooler is connected with the outlet of the heat exchanger through a cooling medium pipeline, the outlet of the natural cooler is connected with the inlet of the refrigerating device through a cooling medium pipeline, and the outlet of the refrigerating device is connected with the inlet of the heat exchanger through a cooling medium pipeline; the refrigerating device is connected with an electromagnetic valve in parallel; the cooling oil is non-conductive, non-volatile, non-flammable and non-corrosive electronic cooling liquid; the cooling medium is freon.

Furthermore, one or two or more groups of servers are provided with one group of heat exchangers.

Further, the cooling medium duct in the cabinet is arranged along the side of the cabinet.

Further, the natural cooler is installed at a position higher than the heat exchanger.

Further, the natural cooler is installed at the same height as or lower than the heat exchanger.

Furthermore, a liquid storage tank is arranged at the outlet of the electromagnetic valve, and a liquid pump is arranged between the liquid storage tank and the inlet of the heat exchanger.

Further, one or two or more than two cabinets are provided with a group of natural coolers.

Further, the top of the cabinet is provided with a top cover plate which is a glass cover plate.

Further, the bottom of the cabinet is provided with casters.

Furthermore, the system has two cooling modes of natural cooling and partial natural cooling, and when the outdoor temperature is lower, the system runs the natural cooling mode; when the outdoor temperature is high, a partial natural cooling mode is operated, and the two modes can be automatically switched according to the outdoor temperature and the requirement.

The invention has the following beneficial effects: the liquid immersion type server cabinet and the cooling system thereof have the advantages that the servers are placed in the cooling oil, and the cooling oil is in direct contact with the servers for heat exchange, so that the heat dissipation efficiency of the servers is improved; and a natural cooling technology is adopted, a natural cold source is fully utilized, and the natural cold source and a refrigerating device are combined for refrigeration, so that the energy consumption of the data center is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention.

Fig. 1 is a schematic structural diagram of a first embodiment of a liquid-immersed server cabinet and a cooling system thereof.

Fig. 2 is a schematic structural diagram of a second embodiment of a liquid-immersed server cabinet and a cooling system thereof.

Fig. 3 is a schematic structural diagram of a third embodiment of a liquid-immersed server cabinet and a cooling system thereof.

Fig. 4 is a schematic structural diagram of a fourth embodiment of a liquid-immersed server cabinet and a cooling system thereof.

In the figure: (1) a cabinet; (2) a server; (3) a heat exchanger; (4) a natural cooler; (5) a liquid storage tank; (6) a liquid pump; (7) cooling oil (not shown); (8) a cooling medium (not shown); (9) a cooling medium pipe; (10) a refrigeration device; (11) an electromagnetic valve.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1, a schematic structural diagram of a liquid immersion type server cabinet and a cooling system thereof according to a first embodiment of the present invention includes a liquid immersion cabinet 1, a server 2, a heat exchanger 3, a free cooler 4, a refrigerating device 10, an electromagnetic valve 11, cooling oil 7, a cooling medium 8, and a cooling medium pipeline 9. The cooling oil 7 is contained in the liquid immersion cabinet 1; the server 2 is immersed in cooling oil 7; the heat exchanger 3 is immersed in cooling oil 7 and is placed between the two groups of servers 2; an inlet of the natural cooler 4 is connected with an outlet of the heat exchanger 3 through a cooling medium pipeline 9, an outlet of the natural cooler 4 is connected with an inlet of a refrigerating device 10 through the cooling medium pipeline 9, and an outlet of the refrigerating device 10 is connected with an inlet of the heat exchanger 3 through the cooling medium pipeline 9; the refrigeration device 10 is connected in parallel with an electromagnetic valve 11.

The server 2 is immersed in the cooling oil 7 and is in direct contact with the cooling oil 7, and heat generated by the server 2 is directly dissipated into the cooling oil 7, so that the heat dissipation efficiency of the server 2 is improved. The temperature rises after the cooling oil 7 exchanges heat with the server 2, and the server 2 is cooled continuously by the heat exchange and temperature reduction of the heat exchanger 3 placed in the cabinet 1.

The heat exchanger 3 is arranged inside the cabinet 1, is directly immersed in the cooling oil 7 and is arranged between the two groups of servers 2. Each group of servers 2 is correspondingly provided with a group of heat exchangers 3, or each two groups of servers 2 are correspondingly provided with a group of heat exchangers 3, or each more than two groups of servers 2 are correspondingly provided with a group of heat exchangers 3, or the heat exchangers 3 are arranged in a mixed mode. The heat exchangers 3 are distributed in the cabinet 1, the contact area of the heat exchangers with the cooling oil 7 is large, the distance between the heat exchangers and the server 2 is short, the temperature of the cooling oil 7 can be uniform, and the heat dissipation efficiency of the server 2 is improved.

The temperature of the cooling oil 7 is increased after the heat exchange with the server 2, and the cooling medium 8 in the heat exchanger 3 cools the cooling oil 7. When the outdoor temperature is low, the electromagnetic valve 11 is opened, the refrigerating device 10 stops working, the cooling medium 8 is evaporated into gas in the heat exchanger 3 and enters the natural cooler 4, the cooling medium 8 directly radiates heat to the environment through the natural cooler 4, and is cooled into liquid in the natural cooler 4; the natural cooler 4 is arranged at a position higher than the heat exchanger 3, and under the action of gravity, the liquid cooling medium 8 flows back to the heat exchanger 3 for next circulation, and in the mode, the natural cooler 4 provides all cold energy and is in a natural cooling mode. When the outdoor temperature is high, the electromagnetic valve 11 is closed, the refrigerating device 10 works, the cooling medium 8 enters the refrigerating device 10 after being cooled by the natural cooler 4, is further cooled and is conveyed to the heat exchanger 3 for the next circulation, and in the mode, the natural cooler 4 provides partial cold, and the refrigerating device 10 supplies partial cold for the partial natural cooling mode. The two modes can be automatically switched according to outdoor temperature and requirements.

As shown in fig. 2, which is a schematic structural diagram of a second embodiment of a liquid immersion type server cabinet and a cooling system thereof according to the present invention, on the basis of the first embodiment, a set of natural coolers 4 is disposed in two or more liquid immersion cabinets 1, and a cooling medium 8 is evaporated into gas in a heat exchanger 3 of each cabinet 1, and the gas is merged by a cooling medium pipeline 9 and then enters the natural coolers 4 for cooling. When the outdoor temperature is low, the electromagnetic valve 11 is opened, the refrigeration device 10 stops working, and the cooling medium 8 which is cooled to be liquid flows back to the heat exchangers 3 of the cabinets 1 under the action of gravity. When the outdoor temperature is high, the electromagnetic valve 11 is closed, the refrigerating device 10 works, and the cooling medium 8 enters the refrigerating device 10 after being cooled by the natural cooler 4, is further cooled, and is conveyed to the heat exchangers 3 of the cabinets 1.

As shown in fig. 3, which is a schematic structural diagram of a third embodiment of the liquid immersion server cabinet and the cooling system thereof of the present invention, the installation position of the free cooling device 4 may be arbitrarily arranged, and is higher than the position of the heat exchanger 3, or is the same as the position of the heat exchanger 3, or is lower than the position of the heat exchanger 3, a liquid storage tank 5 is disposed at an outlet of the electromagnetic valve 11, and a liquid pump 6 is disposed between the liquid storage tank 5 and an inlet of the heat exchanger 3. When the outdoor temperature is low, the electromagnetic valve 11 is opened, the refrigerating device 10 stops working, the cooling medium 8 is evaporated into gas in the heat exchanger 3, enters the natural cooler 4, is cooled into liquid in the natural cooler 4, enters the liquid storage tank 5, and is conveyed into the heat exchanger 3 under the action of the pumping force of the liquid pump 6, and in the mode, the natural cooler 4 provides all cold energy and is in a natural cooling mode. When the outdoor temperature is high, the electromagnetic valve 11 is closed, the refrigerating device 10 works, the cooling medium 8 enters the refrigerating device 10 after being cooled by the natural cooler 4, is further cooled and is conveyed into the heat exchanger 3, and in the mode, the natural cooler 4 provides part of cooling capacity, and the refrigerating device 10 supplies part of cooling capacity to provide part of cooling capacity in a supplementing mode, so that the mode is a partial natural cooling mode. The two modes can be automatically switched according to outdoor temperature and requirements.

As shown in fig. 4, which is a schematic structural diagram of a liquid immersion server cabinet and a cooling system thereof according to a fourth embodiment of the present invention, on the basis of the third embodiment, two or more liquid immersion cabinets 1 are provided with a set of natural coolers 4. The cooling medium 8 is evaporated into gas in the heat exchanger 3 of each cabinet 1, and the gas is merged in the cooling medium pipeline 9 and then enters the natural cooler 4 for cooling. When the outdoor temperature is low, the electromagnetic valve 11 is opened, the refrigerating device 10 stops working, the cooling medium 8 is cooled into liquid by the natural cooler 4, enters the liquid storage tank 5, and is conveyed to the heat exchangers 3 of the cabinets 1 under the action of the pumping force of the liquid pump 6. When the outdoor temperature is high, the electromagnetic valve 11 is closed, the refrigerating device 10 works, and the cooling medium 8 enters the refrigerating device 10 after being cooled by the natural cooler 4, is further cooled, and is conveyed to the heat exchangers 3 of the cabinets 1.

The cooling oil 7 is non-conductive, non-volatile, non-flammable and non-corrosive electronic cooling liquid, and circulates only inside the liquid immersion cabinet 1, so that the use amount of the cooling oil 7 is reduced, the weight of the liquid immersion cabinet 1 is reduced, and the use cost of the cooling oil 7 is saved.

The top of the cabinet 1 is provided with a top cover plate which is a glass cover plate; the working state of the server 2 can be observed through the glass cover plate when the server 2 works. The servers 2 need to be put in or taken out from the top of the cabinet 1, and the cooling medium pipeline 9 in the cabinet 1 is arranged along the side face of the cabinet 1, so that the putting in or taking out of the servers 2 is not influenced. The truckles are installed at the bottom of the cabinet 1, so that the cabinet 1 can be conveniently moved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.