KR102565251B1 - Emergency cooling system for data center servers - Google Patents

Abstract

The present invention relates to an emergency cooling device for a data center server, and more particularly, to supply cold water from a buffer tank (heat storage tank) to a data center server for a certain period of time in an emergency situation such as a power outage, thereby providing the server and the It was invented to prevent damage to various data.
The configuration of the present invention drives the external main pump 2 to supply the refrigerant or cooling water cooled to a predetermined temperature in the cooler 3 to the data center server 1 along the main cooling line 4 so that cooling In making it happen,
A branch pipe 10 connected in parallel across the main cooling line 4, an inlet 21 and an outlet 22 connected to the branch pipe 10, and an emergency through the cooler 3 to the inside A buffer tank 20 storing cooling water, a delay means 30 delaying a mixing time between the hot water flowing into the inlet 21 of the buffer tank 20 and the emergency cooling water stored therein; A control valve 40 installed between the inlet 21 of the buffer tank 20 in the branch pipe 10 to control the opening of the passage in case of a power outage emergency, and a cooling water outlet 22 inside the buffer tank 20 in an emergency power outage situation. It is configured to include a sub-pump 50 to be discharged through ) and supplied to the data center server 1 for a certain period of time,
The delay means 30 is installed to be movable by the guidance of the guide rod 32 fixed in the inner axial direction of the buffer tank 20, and the hot water introduced through the inlet 21 and the outlet 22 are introduced, It is characterized in that it consists of a blocking plate 33 that blocks the mixing of cooling water.

Description

Emergency cooling system for data center servers}

The present invention relates to an emergency cooling device for a data center server, and more particularly, to supply cold water from a buffer tank (heat storage tank) to a data center server for a certain period of time in an emergency situation such as a power outage, thereby providing the server and the It was invented to prevent damage to various data.

Recently, research and development based on big data have been actively conducted.

Big data is a large amount of data accumulated over a certain period of time, and is mainly applied to a data set having a level that is difficult to handle with ordinary software or computing systems.

Servers, network equipment, enterprise equipment, etc. provided in data centers generate high-temperature heat, and if such heat is not maintained at a constant temperature, problems occur with stored data.

Therefore, data centers that operate these equipment also operate large-scale facilities for cooling heat.

In order to cool the heat of the data center, cold air must be supplied to each equipment, and a thermostat that generates cold air is generally used for this purpose.

However, since the energy consumed to operate the thermostat and its related facilities is equivalent to 50 to 60% of the total power used in the data center, cold air outside the building is used to reduce energy input for cooling the data center. is introduced into the server room to cool the heat of the equipment.

In this regard, Korean Patent Publication No. 10-2011-0129514 (published on December 2, 2011) "Internet data center air conditioning system realizing a green computing environment" controls outside air to flow into the data center, Techniques and the like that are cooled through a cooling unit and introduced into the data center are being developed.

However, the cooling method according to the air conditioning system has a disadvantage in that the efficiency is lowered in the season when the outdoor temperature is high, and thus there is a limit to energy saving.

In addition, since a configuration such as a filter for removing dust and foreign substances contained in the outside air is required, there is a disadvantage in that facility maintenance costs increase, so a water-cooled server cooling system has been proposed.

Republic of Korea Patent Publication No. 10-2014-0090075 (published on July 16, 2014) In 'water-cooled cluster computer cooling system', a configuration for cooling a plurality of nodes constituting a cluster computer by a water-cooling method is also known.

On the other hand, an emergency situation may occur in which a problem occurs due to a power outage or the like in a power supply for operating a circulation system for cooling heat of a server.

Conventionally, there is a problem in that a server may be damaged due to high temperature since a separate emergency cooling device for cooling the data center server is not provided in an emergency situation such as a power outage.

Republic of Korea Patent Publication No. 10-2011-0129514 (published on December 2, 2011) Republic of Korea Patent Publication No. 10-2014-0090075 (published on July 16, 2014)

The present invention is to solve the problems of the prior art, and in an emergency situation such as a power outage, by supplying cold water in a buffer tank (heat storage tank) for a certain period of time with power from an uninterruptible power supply or an emergency generator, the server The purpose is to provide an emergency cooling device for data center servers to prevent damage to the data center server.

Another object of the present invention is to provide an emergency cooling device for a data center server with excellent stability and reliability by preventing damage to the server in any emergency situation.

The configuration according to the present invention drives the external main pump 2 to supply the refrigerant or cooling water cooled to a predetermined temperature in the cooler 3 to the data center server 1 along the main cooling line 4 for cooling In making this happen,

A branch pipe 10 connected in parallel across the main cooling line 4,

A buffer tank 20 having an inlet 21 and an outlet 22 connected to the branch pipe 10 and storing emergency cooling water through the cooler 3 therein;

A delay means (30) for delaying the mixing time of the hot water flowing into the inlet (21) of the buffer tank (20) and the emergency cooling water stored therein;

A control valve 40 installed in the branch pipe 10 between the inlet 21 of the buffer tank 20 to control the passage to be opened in case of a power outage emergency;

It is configured to include a sub-pump 50 to supply the cooling water inside the buffer tank 20 through the outlet 22 to the data center server 1 for a certain period of time in a power outage emergency situation,

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The delay means 30 is installed to be movable by the guidance of the guide rod 32 fixed in the inner axial direction of the buffer tank 20, and the hot water introduced through the inlet 21 and the outlet 22 are introduced It may be composed of a blocking plate 33 that blocks the mixing of coolant therein.

Here, a plurality of guide protrusions 34 are fixedly installed on the inner wall of the buffer tank 20 along the axial direction, and the guide grooves have a size and shape corresponding to the guide protrusions 34 on the blocking plate 33 35) are dug out.

In addition, it is preferable that a bushing 36 and a guide pad 37 are respectively installed on the blocking plate 33 to facilitate movement while maintaining airtightness between the guide rod 32 and the guide protrusion 34. do.

The delay means 30 may be fixedly installed with a plurality of diaphragms 38 in which spaces are divided inside the buffer tank 20 and through holes 39 are drilled.

At this time, the number of through holes 39 pierced through the diaphragm 38 is designed to gradually increase from the inlet 21 to the outlet 22 .

The present invention provides cold water stored in a buffer tank (heat storage tank) to a data center server for a certain period of time using an uninterruptible power supply or an emergency generator when an emergency situation such as a power outage occurs. damage can be prevented.

Therefore, in any emergency situation such as a power outage, damage to stored data and servers is prevented, resulting in excellent stability and reliability.

1 is a configuration diagram of an emergency cooling device of a data center server according to the present invention.
2 is an enlarged view showing a buffer tank structure according to a first embodiment of the present invention.
3 is an enlarged view showing a buffer tank structure according to a second embodiment of the present invention.
Figure 4 is a cross-sectional view of Figure 3;
5 is an enlarged view of part A of FIG. 3;
6 is an enlarged view showing a buffer tank structure according to a third embodiment of the present invention.
7 is a cross-sectional view along line BB of FIG. 6;
Figure 8 is a cross-sectional view along line CC of Figure 6;

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below and can be implemented in various different forms, only these embodiments are intended to complete the disclosure of the present invention, and are common in the art to which the present invention belongs. It is provided to fully inform the knowledgeable person of the scope of the invention, and the invention is only defined by the scope of the claims.

Also, terms used in this specification are for describing the embodiments and are not intended to limit the present invention.

In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, "comprises" and/or "comprising" does not exclude the presence or addition of other components than the recited components.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used in a meaning commonly understood by those of ordinary skill in the art to which the present invention belongs.

Hereinafter, the configuration of the present invention will be described in detail according to embodiments with reference to the accompanying drawings.

The emergency cooling device of the data center server according to the present invention supplies cold water from the buffer tank (heat storage tank) to the data center server for a certain period of time in an emergency situation such as a power outage, so that the server and various important data center equipment and especially the server This is to prevent damage to various data stored in

That is, servers, network equipment, and enterprise equipment provided in data centers generate high-temperature heat, and if this heat cannot be maintained at a certain temperature, problems with stored data occur and the cooling device cannot be operated for a certain period of time. In this case, damage to the server may occur.

Therefore, the data center maintains an appropriate temperature through the cooler to cool the heat, but when an emergency situation such as a power outage occurs, power to the cooler is not supplied.

1 shows the configuration of an emergency cooling device of a data center server according to the present invention.

2 shows an enlarged view of the buffer tank structure according to the first embodiment of the present invention.

As shown in the figure, under normal conditions, the main pump 2 is driven to supply the refrigerant or cooling water cooled to a predetermined temperature in the cooler 3 to the data center server 1 along the main cooling line 4, and cooling is achieved. will lose

It is common that the main cooling line 4 is filled with refrigerant or cooling water while maintaining a predetermined pressure.

In the present invention, in order to prevent data and server damage by supplying cooling water to the server for a certain time, for example, within about 10 minutes even in an emergency, first, the branch pipe 10 is connected in parallel across the main cooling line 4 And, the buffer tank 20 is installed in the branch pipe 10.

The buffer tank 20 has a hollow water tank shape, and has an inlet 21 on one side and an outlet 22 on the other side, and is connected to the branch pipe 10, respectively, and coolant is filled therein.

Most of the cooling water generated through the cooler 3 during normal operation is supplied to the data center server 1, and the remaining part is filled into the buffer tank 20 through the outlet 22.

The cooling water filled in the buffer tank 20 maintains an appropriate chilled water temperature through the cooler 3 for emergency situations such as power outages.

In addition, the sub-pump 50 for supplying the cooling water previously filled in the buffer tank 20 to the data center server 1 in an emergency situation such as a power failure is connected to the connection of the branch pipe 10 and the data center server 1 installed between

In the event of a power outage, the cooler 3 stops, and the sub-pump 50 is driven by the power of an uninterruptible power supply or emergency generator prepared in advance in the data center, and the cooling water filled in the buffer tank 20 is discharged through the discharge port. Through (22), it is forcibly supplied to the data center server (1) for a certain period of time along the outlet of the branch pipe (10) and the main cooling line (4).

Here, the sub-pump 50 operated in an emergency situation such as a power outage is operated within about 10 minutes and prevents the server from being damaged by high heat.

On the other hand, when cooling water is supplied to the server through the sub-pump 50, hot water heated by heat exchange through the data center server 1 flows into the inlet 21 of the buffer tank 20 through the branch pipe 10. do.

At this time, a delay unit 30 is provided to delay the mixing time of the hot water flowing into the inlet 21 of the buffer tank 20 and the emergency cooling water stored therein as much as possible, and a buffer is provided in the branch pipe 10. Between the inlet 21 of the tank 20, a control valve 40 is further installed.

The control valve 40 opens the passage of the branch pipe 10 in an emergency of power failure to allow hot water to flow to the buffer tank 20, and controls the flow of hot water by blocking the passage in a normal situation.

1 and 2 show the configuration of the delay unit 30 for delaying the rapid mixing of the hot water flowing into the buffer tank 20 and the cold water filled therein to increase the temperature, as a first embodiment.

That is, the screw 31 having the outer diameter of the wing is installed long along the axial direction so as to come into close contact with the inner diameter of the buffer tank 20 .

The screw 31 is not rotated but is fixedly installed so that the hot water introduced through the inlet 21 moves slowly while turning along the screw 31.

Therefore, it has the effect of maximally delaying the mixing time of the cooling water and the hot water that have been previously filled inside.

At this time, retardation plates 23 having through-holes passing through the center are installed inside the inlet 21 and the outlet 22 of the buffer tank 20, respectively.

Therefore, by allowing the retardation plates 23 on both sides to move through the through hole in the center, an effect of further delaying the moving time of the hot water and the mixing time of the cold water can be obtained.

FIG. 3 is an enlarged view of a buffer tank 20 structure according to a second embodiment of the present invention, FIG. 4 is a cross-sectional view of FIG. 3 , and FIG. 5 is an enlarged view of part A of FIG. 3 .

That is, as another embodiment of the delay means 30, the blocking plate 33 is installed to be movable by the guide of the guide rod 32 fixed in the inner axial direction of the buffer tank 20, thereby opening the inlet 21. Direct contact between the hot water introduced through the outlet 22 and the cooling water introduced through the outlet 22 prevents mixing.

The blocking plate 33 is moved by the suction force of the cooling water filled inside the buffer tank 20 through the sub pump 50, and a space is formed as much as the moving distance so that hot water flows into the inlet 21. Hot water and cooling water are not mixed by the blocking plate 33 .

One or two guide rods 32 are fixed side by side along the central axial direction of the buffer tank 20 .

In addition, a plurality of guide protrusions 34 are fixedly installed on the inner wall of the buffer tank 20 along the axial direction, and guide protrusions 34 have a size and shape corresponding to the guide protrusions 34 on the blocking plate 33. The grooves 35 are dug so that when the blocking plate 33 is moved, it does not move in the rotational direction and is movable only along the central axial direction of the buffer tank 20 .

Therefore, the blocking plate 33 is guided so that it can move stably only in a straight line.

At this time, it is preferable that a bushing 36 and a guide pad 37 are respectively installed on the blocking plate 33 to facilitate movement while maintaining airtightness between the guide rod 32 and the guide protrusion 34. do.

The bushing 36 and the guide pad 37 may be selected from silicone or synthetic resin materials having lubricity and airtightness.

6 shows an enlarged view of a buffer tank structure according to a third embodiment of the present invention.

That is, as shown in the drawing, in another embodiment of the delay means 30, a plurality of diaphragms 38 partitioning spaces inside the buffer tank 20 and having through-holes 39 drilled are fixedly installed at regular intervals.

Therefore, when hot water flows into the buffer tank 20 while the cooling water is filled, the diaphragms 38 limit movement toward the next space, that is, the discharge port 22, as much as possible, and only through the through holes 39. The hot water is gradually moved and can be mixed very slowly with the cooling water.

At this time, the number of through holes 39 pierced through the diaphragm 38 is designed to gradually increase from the inlet 21 to the outlet 22, so that the mixing time of hot and cold water is delayed as much as possible.

FIG. 7 is a cross-sectional view along the line B-B of FIG. 6, showing a state in which a relatively small number of through-holes 39 are formed in the diaphragm 38 installed near the inlet 21.

8 is a cross-sectional view along the line C-C of FIG. 6, in which the diaphragm 38 installed near the outlet 22 is drilled in a larger number than the number of through holes 39 of the diaphragm 38 installed near the inlet 21 is foreshadowing

In this way, by designing such that the number gradually increases from the inlet 21 to the outlet 22 in the state where a plurality of diaphragms 38 are installed, hot water drawn through the inlet 21 and the outlet 22 This is to delay as much as possible the time when the introduced coolant directly contacts and mixes.

Therefore, in the process of forcibly supplying the cold water stored in the buffer tank (heat storage tank) to the data center server for a certain period of time in the event of an emergency such as a power outage, performance degradation due to hot water mixing is minimized while data and It has the effect of preventing damage to important devices.

Although the emergency cooling device of the data center server according to the present invention has been specifically presented above, this is only embodied in the process of describing the embodiment of the present invention, and all features of the present invention are limited to being applied only to the items mentioned above. It should not be interpreted as such.

In addition, anyone skilled in the art will be able to make various modifications and imitations based on the description of the present specification, but it will be clear that this also does not deviate from the scope of the present invention.

1 - Data Center Server
2 - Main pump
3 - Cooler
4 - main cooling line
10 - branch pipe
20 - buffer tank
30 - delay means
31 - screw
32 - guide rod
33 - blocking plate
38 - Divide
39 - through hole
40 - control valve
50 - Subpump

Claims (8)

In cooling by driving the external main pump 2 and supplying the refrigerant or cooling water cooled to a predetermined temperature in the cooler 3 to the data center server 1 along the main cooling line 4,
A branch pipe 10 connected in parallel across the main cooling line 4,
A buffer tank 20 having an inlet 21 and an outlet 22 connected to the branch pipe 10 and storing emergency cooling water through the cooler 3 therein;
A delay means (30) for delaying the mixing time of the hot water flowing into the inlet (21) of the buffer tank (20) and the emergency cooling water stored therein;
A control valve 40 installed in the branch pipe 10 between the inlet 21 of the buffer tank 20 to control the passage to be opened in case of a power outage emergency;
It is configured to include a sub-pump 50 to supply the cooling water inside the buffer tank 20 through the outlet 22 to the data center server 1 for a certain period of time in a power outage emergency situation,
The delay means 30 is installed to be movable by the guidance of the guide rod 32 fixed in the inner axial direction of the buffer tank 20, and the hot water introduced through the inlet 21 and the outlet 22 are introduced An emergency cooling device for a data center server, characterized in that composed of a blocking plate 33 that blocks the mixing of cooling water in the data center server.
delete delete delete The method of claim 1,
A plurality of guide protrusions 34 are fixedly installed along the axial direction on the inner wall of the buffer tank 20, and a guide groove 35 has a size and shape corresponding to the guide protrusions 34 on the blocking plate 33. An emergency cooling device for data center servers, characterized in that they are dug.
The method of claim 5,
Bushings 36 and guide pads 37 are installed on the blocking plate 33 to facilitate movement while maintaining airtightness between the guide rod 32 and the guide protrusion 34, respectively. Emergency cooling for data center servers.
The method of claim 1,
The delay means (30) is an emergency cooling device of a data center server, characterized in that a plurality of partition plates (38) are fixedly installed to divide spaces inside the buffer tank (20) and through holes (39) are drilled.
The method of claim 7,
The emergency cooling device of the data center server, characterized in that the through holes 39 pierced in the diaphragm 38 are formed so that the number gradually increases from the inlet 21 to the outlet 22.

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