CN113613475A - Data center air conditioner terminal solving system - Google Patents

Abstract

The invention provides a data center air conditioner tail end solving system which comprises at least 1 or more IT equipment compartments, fans, filters and surface air coolers, wherein a left row of cabinet bodies, a right row of cabinet bodies and a middle hot channel are respectively arranged in any one of the IT equipment compartments, an evaporative cooling area is arranged under the ground of the IT equipment compartment or on a suspended ceiling, the fans, the filters and the surface air coolers are arranged in the evaporative cooling area, the surface air coolers are arranged closer to a server so as to quickly collect heat and reduce resistance, meanwhile, the fans are changed into thinner axial flow fans, and the surface air coolers and the fans are disassembled and installed, so that energy conservation and efficiency improvement are ensured, floor area is saved, the problem of water condensation of the surface air coolers is avoided, and potential safety risks are eliminated.

Description

Data center air conditioner terminal solving system

Technical Field

The invention relates to the technical field of heating, ventilating and air conditioning systems, in particular to a data center air conditioner tail end solving system.

Background

The data center has been widely paid attention as a large energy consumption user, and with the gradual implementation of the national 'double carbon' strategy, the energy saving and consumption reduction of the data center will become the key direction in the future. The energy consumption of the data center air conditioner is up to 43%, so that the reduction of the energy consumption of the air conditioner has great benefits. At present, the energy saving directions of the data center air conditioner are as follows: (1) the tail end of the air conditioner is close to the server as much as possible, so that the heat collecting efficiency is improved; (2) the air resistance at the tail end is reduced so as to reduce the power consumption of the fan; (3) the natural cold source is fully utilized to reduce the whole power consumption and the like. In addition, the data center air conditioner needs a special equipment room, occupies more effective indoor area of a machine room, and also seriously influences the output performance and the elasticity of the cabinet, which is one of the main problems encountered at present. In addition, the problem of tail end condensate water is another risk point found in the actual operation process of the air conditioner, and if the condensate water is blown out of the air conditioner, the condensate water brings safety risks to a power supply system and a server.

Disclosure of Invention

In order to solve the problems of high refrigeration energy consumption, low space utilization rate and tail end water condensation of the data center, the high-efficiency concentrated cold source indirect evaporative cooling air conditioning system is provided, and an evaporative cooling area is arranged and rearranged on a mounting structure, so that the defect of space occupation can be overcome, and the problem of tail end energy consumption of an air conditioner can be further solved.

Specifically, the technical scheme of the invention is as follows:

a data center air conditioning end solution system comprising:

the method comprises the following steps: at least 1 or more IT equipment compartments, fans, filters and surface coolers; a left row of cabinet bodies, a right row of cabinet bodies and a middle hot channel are respectively arranged in any IT equipment compartment; an evaporative cooling area is arranged below the ground or on the suspended ceiling of the IT equipment compartment; and the fan, the filter and the surface air cooler are arranged in the evaporation cooling area.

Preferably, the evaporative cooling area is arranged below the ground and is separated from the IT equipment compartment by a partition plate, first ventilation openings are sequentially formed in the partition plate at preset intervals along the hot channel, and the hot channel is communicated with the evaporative cooling area through the first ventilation openings; and a filter 3 and a surface cooler are sequentially arranged outside the first ventilation opening.

The two sides outside the IT equipment compartment are cold channels, second ventilation openings are formed in the partition board along each cold channel at preset intervals, and the cold channels are communicated with the evaporative cooling area through the second ventilation openings; and the fans are respectively arranged at the outer sides of the second ventilation openings.

As another preferred, the evaporative cooling area is arranged on a ceiling of an IT equipment compartment, and is separated from the IT equipment compartment by a partition plate; and third air inlets are formed in the partition plate at preset intervals along the hot channel, the hot channel 7 is communicated with the evaporative cooling area through the third air inlets, and a fan is arranged on the outer side of each third air inlet.

The two sides outside the IT equipment compartment are cold channels, fourth ventilation ports are respectively arranged on the partition plate along the cold channels at preset intervals, and the cold channels are communicated with the evaporative cooling area through the fourth ventilation ports; and a filter and a surface cooler are sequentially arranged on the outer side of the fourth air inlet.

Preferably, the cabinet body at least comprises a power distribution cabinet and an IT cabinet; and the sealing doors are matched with the head cabinet and the tail cabinet of each row and are used for separating the IT equipment compartment from the outside.

Wherein, the cold channel among the IT equipment compartments is a common cold channel.

Preferably, the installation position of the fan is in the same row with the filter and the surface cooler and both arranged in the evaporative cooling area, and an airflow channel in the evaporative cooling area is formed, wherein the airflow channel sequentially passes through the filter, the surface cooler, the evaporative cooling area and the fan;

the surface cooler adopts at least one of a chilled water coil or an evaporator coil.

As another preferred, the fan of the present invention further includes the following control steps:

s1: adjusting a valve of the surface cooler, judging whether the valve reaches a lower limit value, judging whether the temperature T of the surface cooler is less than Td, if so, increasing the rotating speed of the fan, and turning to S2; otherwise, go to S3;

s2: judging that the temperature T of the surface cooler is greater than Td, if yes, turning to S3; otherwise, returning to S1;

s3: judging whether the pressure difference P of the cold and hot channel is larger than a preset pressure value, and if the pressure difference P is larger than the preset pressure value, reducing the rotating speed of the fan; if the rotation speed is less than the preset rotation speed, the rotation speed of the fan is increased.

Wherein, adjust the valve of surface cooler still includes following step:

SS 1: judging that the actually measured temperature TL of the cold channel is less than the set temperature Ts, and if the actually measured temperature TL of the cold channel is less than the set temperature Ts, increasing the opening of the valve; otherwise, the opening degree of the valve is reduced; switching to SS 2;

SS 2: judging that the temperature T of the surface cooler is less than Td +. T, wherein Td is a wet ball temperature value in the IT equipment compartment, and T is a threshold range value, if yes, returning to SS 1; otherwise, the opening degree of the valve is reduced.

In summary, the invention provides a data center air conditioner end solution system, which adopts a surface cooler with a large surface area and is installed closer to a server to quickly capture heat, thereby reducing resistance; meanwhile, the fan is changed into a thinner axial flow fan, the surface cooler and the fan are disassembled and installed and combined with an IT cabinet structural frame or a floor, energy conservation and efficiency improvement are guaranteed, the occupied area is saved, the problem of water condensation of the surface cooler is avoided, and potential safety risks are eliminated.

Drawings

Fig. 1 is a schematic layout diagram of a data center air conditioner end solution system according to the present invention.

Fig. 2 is a schematic diagram of the data center air conditioning end solution system shown in fig. 1.

Fig. 3 is a schematic diagram of a data center air conditioning end solution system according to another embodiment.

Fig. 4 is a schematic diagram of another data center air conditioning end solution system shown in fig. 3.

FIG. 5 is a fan control process according to the invention.

Fig. 6 is a valve control process of adjusting the surface cooler in fig. 5.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions 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.

As shown in fig. 1, IT is a layout diagram of the installation of the data center air conditioning end solution system according to the present invention, wherein, 1-IT equipment compartment; 2-a fan; 3-a filter; 4-surface cooler; 5-left row cabinet body; 6-right row of cabinets; 7-intermediate thermal vias; 8-an evaporative cooling zone; 9-a first vent; 10-a cold channel; 11-a second vent; 12-a third vent; 13-fourth vent port, 14-sealing door.

The data center air-conditioning tail end solving system improves the defect that the prior evaporative cooling area is arranged at the side to occupy space by arranging the evaporative cooling area 8 under the ground or on the suspended ceiling of the IT equipment compartment 1.

Specifically, the system comprises: at least 1 or more IT equipment compartments 1, a fan 2, a filter 3 and a surface air cooler 4; a left row of cabinet bodies 5, a right row of cabinet bodies 6 and a middle hot channel 7 are respectively arranged in any IT equipment compartment 1; an evaporative cooling area 8 is arranged below the ground or on the suspended ceiling of the IT equipment compartment 1; the fan 2, the filter 3 and the surface cooler 4 are arranged in the evaporative cooling area 8.

As a preferred embodiment, the evaporative cooling area 8 is arranged below the ground and is separated from the IT equipment compartment 1 by a partition or a floor, first ventilation openings 9 are sequentially arranged on the partition at preset intervals along the hot channel 7, and the hot channel 7 is communicated with the evaporative cooling area 8 through the first ventilation openings 9; the filter 3 and the surface cooler 4 are sequentially installed outside the first ventilation opening 9, preferably, one surface of the filter 3 is tightly attached to the upper surface of the surface cooler 4, the other surface of the filter just covers the first ventilation opening 9 and is fixedly installed outside the first ventilation opening 9, and the lower surface of the surface cooler 4 is exposed in the evaporation cooling area 8 and used for discharging airflow in the hot channel to the evaporation cooling area 8.

The two sides outside the IT equipment compartment 1 are cold channels 10, second ventilation openings 11 are arranged on the partition board along each cold channel 10 according to a preset interval, and the cold channels 10 are communicated with the evaporative cooling area 8 through the second ventilation openings 11; the fans 2 are respectively installed at the outer sides of the second ventilation openings 11, that is, one side of each fan is closely attached to the outer side of the second ventilation opening 11, and the other side of each fan is exposed in the evaporative cooling area 8 and is used for sucking gas exhausted from the hot channel in the evaporative cooling area 8, so that an airflow channel is formed. The first ventilation openings 9 and the second ventilation openings 11 are respectively laid in a row along the hot channel 7 and the cold channel 10 and are in one-to-one correspondence.

When there are a plurality of IT equipment compartments 1, for example, 3 IT equipment compartments 1 are provided, respectively, the IT equipment compartments 1 are T1, T2 and T3, wherein the left and right cold passages 10 of T1 and T3 are respectively one cold passage 10, and the left and right cold passages 10 of T2 are respectively the cold passage 10 on the right side of T1 and the cold passage 10 on the left side of T2. Then there are 2 air flow channels formed for T1 at this time, which are: t1 hot aisle-filter 3-surface cooler 4-T1 left cold aisle 10; and T1 hot aisle-filter 3-surface cooler 4-T1 right cold aisle 10. Similarly, for the airflow formed by T2, there are: t2 hot aisle-filter 3-surface cooler 4-T1 right cold aisle 10; and T2 hot aisle-filter 3-surface cooler 4-left cold aisle 10 of T3. As does T3.

As another preference, the evaporative cooling area 8 is arranged on a ceiling of the IT equipment compartment 1, and is separated from the IT equipment compartment 1 by a partition plate, and preferably, the partition plate is arranged above the ceiling, and the evaporative cooling area 8 is supported by the ceiling; and third air inlets 12 are formed in the partition board at preset intervals along the hot channel 7, the hot channel 7 is communicated with the evaporative cooling area 8 through the third air inlets 12, and a fan 2 is arranged outside the third air inlets 12.

Two sides outside the IT equipment compartment 1 are provided with cold channels 10, fourth ventilation ports 13 are respectively arranged on the partition board along the cold channels 10 at preset intervals, and the cold channels 10 are communicated with the evaporative cooling area 8 through the fourth ventilation ports 13; and a filter 3 and a surface cooler 4 are sequentially arranged on the outer side of the fourth air inlet 13.

Further, the third ventilation opening 12 and the fourth ventilation opening 13 are respectively laid in a row along the hot channel 7 and the cold channel 10, and are in one-to-one correspondence.

Preferably, the cabinet body at least comprises a power distribution cabinet and an IT cabinet; and the sealing doors 14 are matched with the cabinets at the head and the tail of each row, and the IT equipment compartment is separated from the outside by the sealing doors 14.

For example, when 6 groups of IT equipment compartments 1 are provided, the cold passageway 10 reserved between the first group of IT equipment compartments and the second group of IT equipment compartments is used as the common cold passageway 10 between the first group of IT equipment compartments and the second group of IT equipment compartments, and similarly, the cold passageway 10 reserved between the second group of IT equipment compartments and the third group of IT equipment compartments is also the common cold passageway 10, and so on, only the outer sides of the first group and the last group are also reserved with one unique cold passageway 10.

Preferably, the installation position of the fan 2 is the same as the filter 3 and the surface air cooler 4, the fan 2 and the surface air cooler 4 are both arranged in the evaporative cooling area 8, and form an airflow channel in the evaporative cooling area 8, the airflow channel sequentially passes through the filter 3, the surface air cooler 4, the evaporative cooling area 8 and the fan 2, so that airflow in the IT equipment compartment 1 enters the evaporative cooling area 8 from a ventilation opening in the hot channel 7, and the evaporative cooling area 8 is a half-closed space and is ventilated with the outside only through the opened ventilation opening.

Wherein, the surface cooler 4 adopts at least one of a chilled water coil or an evaporator coil, but is not limited to the above.

Preferably, as shown in fig. 5, the fan 2 further includes the following steps:

s1: adjusting a valve of the surface cooler 4, judging whether the valve reaches a lower limit value, and if the temperature T of the surface cooler 4 is less than Td, increasing the rotating speed of the fan 2, and turning to S2; otherwise, go to S3;

s2: judging that the temperature T of the surface cooler 4 is greater than Td, if yes, turning to S3; otherwise, returning to S1;

s3: judging whether the pressure difference P of the cold and hot channel is larger than a preset pressure value, and if the pressure difference P is larger than the preset pressure value, reducing the rotating speed of the fan 2; if the rotation speed is smaller than the preset rotation speed, the rotation speed of the fan 2 is increased.

As another preferred, the adjusting of the valve of the surface cooler 4 further includes the following steps as shown in fig. 6:

SS 1: judging that the actually measured temperature TL of the cold channel is less than the set temperature Ts, and if the actually measured temperature TL of the cold channel is less than the set temperature Ts, increasing the opening of the valve; otherwise, the opening degree of the valve is reduced; switching to SS 2;

SS 2: judging that the temperature T of the surface cooler 4 is less than Td +. T, wherein Td is a wet-bulb temperature value in the IT equipment compartment 1, and if T is a threshold range value, returning to SS 1; otherwise, the opening degree of the valve is reduced.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A data center air conditioner end solution system, comprising: at least 1 or more IT equipment compartments (1), a fan (2), a filter (3) and a surface cooler (4); a left row of cabinet bodies (5), a right row of cabinet bodies (6) and a middle hot channel (7) are respectively arranged in any IT equipment compartment (1); an evaporative cooling area (8) is arranged below the ground or on the suspended ceiling where the IT equipment compartment (1) is located; the fan (2), the filter (3) and the surface air cooler (4) are arranged in the evaporative cooling area (8).

2. The novel data center air conditioning system as claimed in claim 1, wherein the evaporative cooling area (8) is arranged under the ground and separated from the IT equipment compartment (1) by a partition, first ventilation openings (9) are formed in the partition at preset intervals along the hot aisle (7), and the hot aisle (7) is communicated with the evaporative cooling area (8) through the first ventilation openings (9); and a filter (3) and a surface cooler (4) are sequentially arranged outside the first ventilation opening (9).

3. The novel data center air conditioning system as claimed in claim 2, wherein both sides of the outside of the IT equipment compartment (1) are cold channels (10), second ventilation openings (11) are arranged on a partition board at preset intervals along each cold channel (10), and the cold channels (10) are communicated with the evaporative cooling area (8) through the second ventilation openings (11); and the fans (2) are respectively arranged at the outer sides of the second ventilation openings (11).

4. A new data centre air conditioning system according to claim 1, characterized in that the evaporative cooling area (8) is placed on the ceiling of the IT equipment compartment (1), separated from the IT equipment compartment (1) by a partition; the hot channel (7) is arranged along the partition board according to a preset interval, a third air inlet (12) is formed in the partition board, the hot channel (7) is communicated with the evaporative cooling area (8) through the third air inlet (12), and a fan (2) is installed on the outer side of the third air inlet (12).

5. The novel data center air conditioning system of claim 4, wherein the two outer sides of the IT equipment compartment (1) are provided with cold channels (10), fourth ventilation ports (13) are respectively arranged on the partition board along the cold channels (10) at preset intervals, and the cold channels (10) are communicated with the evaporative cooling area (8) through the fourth ventilation ports (13); and a filter (3) and a surface air cooler (4) are sequentially arranged on the outer side of the fourth air inlet (13).

6. The novel data center air conditioning system of claim 1, wherein the cabinet body comprises at least a power distribution cabinet and an IT cabinet; and the sealing doors (14) are matched with the head cabinet and the tail cabinet of each row, and the IT equipment compartment is separated from the outside by the sealing doors (14).

7. A new data center air conditioning system according to claim 1, characterized in that the cold aisle (10) between the multiple IT equipment compartments (1) is a common cold aisle (10).

8. The novel data center air conditioning system as claimed in claim 1, wherein the fan (2) is installed in the same row as the filter (3) and the surface air cooler (4) and is arranged in the evaporative cooling area (8), and forms an air flow channel in the evaporative cooling area (8), wherein the air flow channel sequentially passes through the filter (3), the surface air cooler (4), the evaporative cooling area (8) and the fan (2);

the surface cooler (4) adopts at least one of a chilled water coil or an evaporator coil.

9. The new data center air conditioning system according to any one of claims 1-7, characterized in that said fan (2) further comprises the following control steps:

s1: adjusting a valve of the surface air cooler (4), judging whether the valve reaches a lower limit value, and if the temperature T of the surface air cooler (4) is less than Td, increasing the rotating speed of the fan (2) and turning to S2; otherwise, go to S3;

s2: judging the temperature T of the surface cooler (4) to be more than Td, and if yes, switching to S3; otherwise, returning to S1;

s3: judging whether the pressure difference P of the cold and hot channel is larger than a preset pressure value, and if the pressure difference P is larger than the preset pressure value, reducing the rotating speed of the fan (2); if the rotating speed is smaller than the preset rotating speed, the rotating speed of the fan (2) is increased.

10. The new data center air conditioning system as claimed in claim 8, wherein said adjusting of the valve of the surface air cooler (4) further comprises the steps of:

SS 1: judging that the actually measured temperature TL of the cold channel is less than the set temperature Ts, and if the actually measured temperature TL of the cold channel is less than the set temperature Ts, increasing the opening of the valve; otherwise, the opening degree of the valve is reduced; switching to SS 2;

SS 2: judging that the temperature T of the surface cooler (4) is less than Td +. T, wherein Td is a wet-bulb temperature value in the IT equipment compartment (1), and if T is a threshold range value, returning to SS 1; otherwise, the opening degree of the valve is reduced.

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