WO2021000358A1

WO2021000358A1 - Fresh air temperature and humidity control system for data center

Info

Publication number: WO2021000358A1
Application number: PCT/CN2019/096975
Authority: WO
Inventors: 丁志永; 徐志炜; 顾遵正
Original assignee: 苏州安瑞可信息科技有限公司
Priority date: 2019-07-03
Filing date: 2019-07-22
Publication date: 2021-01-07
Also published as: CN110332642A

Abstract

A fresh air temperature and humidity control system for a data center, comprising: a server room (17), an air supply room (1), a fresh air valve (2), an air return valve (13), an air discharge valve (18), a centrifugal fan (9), a control module, an air supply temperature and humidity sensor (10), a fresh air temperature and humidity sensor (12), and an air return temperature and humidity sensor (11). The air return temperature and humidity sensor (11) is arranged in a heat channel (27) or at an air inlet of the air return valve (13), and is connected to the control module to perform air return temperature and humidity monitoring. By means of the method above, in the fresh air temperature and humidity control system for a data center, a modular air supply room which is convenient to transport is particularly designed, and the adjustment of temperature and humidity inside the server room is realized by means of the cooperation of external fresh air and a humidifier. If necessary, it is also possible to mix hot wind inside the server room and the fresh air, to comprehensively adjust the temperature and humidity inside the server room. The system has a high degree of automation, low energy consumption during operation and maintenance, and is relatively flexible to mount.

Description

A data center fresh air temperature and humidity control system

Technical field

The invention relates to the technical field of data center temperature and humidity control, in particular to a data center fresh air temperature and humidity control system.

Background technique

In traditional data centers, most of the servers are placed in a closed environment, cooled with air conditioners, and heat exchange methods are used to solve the heat dissipation problem of the data center. The air conditioning and refrigeration solution consumes a lot of electricity, and has problems such as long construction time, high operation and maintenance costs, and many failure points.

In addition, in actual use, air-conditioning and refrigeration will make the air inside the computer room relatively dry, and it is difficult to adjust the humidity. The stable operation of the data center server has certain requirements on temperature and humidity, and the existing air-conditioning system is obviously difficult to meet the use. Claim.

The computer rooms of the existing old data centers are mostly air-conditioned and cooled, which consumes a lot of energy in operation, and requires high maintenance and renovation costs, and needs to be improved.

Summary of the invention

The main technical problem solved by the present invention is to provide a data center fresh air temperature and humidity control system, which is suitable for the construction of new data centers and the transformation of old data centers, realizes temperature and humidity control in the data center, and reduces operation and maintenance costs.

To solve the above technical problems, a technical solution adopted by the present invention is to provide a data center fresh air temperature and humidity control system, including:

The computer room is equipped with cold aisles and hot aisles, and a load installation rack for server installation is set between the cold aisles and hot aisles;

The air supply room is arranged at one end of the machine room with a built-in humidifier to divide the internal space into a mixing room and an air supply room, the air supply room being communicated with the cold passage;

The fresh air valve is set inside or outside the air supply room to control the communication between the outside air and the air mixing chamber;

The return air valve is set inside or outside the air supply room to control the communication between the hot channel and the air mixing chamber;

The exhaust valve is set on the top or side wall of the machine room to control the communication between the hot aisle and the outside air;

The centrifugal fan is set on the side of the humidifier so that the airflow in the air mixing chamber enters the air delivery chamber;

The control module is respectively connected with the centrifugal fan, fresh air valve, return air valve and discharge valve for operation control;

The supply air temperature and humidity sensor is set in the supply room and connected with the control module to monitor the temperature and humidity of the supply air flow;

The fresh air temperature and humidity sensor is set on the outside of the air supply room or at the air inlet of the fresh air valve, and is connected to the control module to monitor the temperature and humidity of the outside fresh air flow;

The return air temperature and humidity sensor is set in the hot aisle or at the air inlet of the return air valve, and is connected to the control module to monitor the return air temperature and humidity.

In a preferred embodiment of the present invention, the cold aisle and the hot aisle are horizontally arranged in the machine room, and a mesh door panel is provided where the air supply chamber communicates with the cold aisle.

In a preferred embodiment of the present invention, the hot aisles are arranged in parallel on both sides of the cold aisle. At this time, the number of hot aisles is two, the number of cold aisles is one, and the number of humidifiers is also two. The internal space of the air supply room is divided into two groups of air mixing chambers and air supply chambers. The two air mixing chambers correspond to the hot aisle one by one, and the two air supply chambers together serve a cold aisle.

In a preferred embodiment of the present invention, a filter located at the outlet of the fresh air valve is provided in the air supply room, and the filter includes a primary effect filter and a middle effect filter connected in series.

In a preferred embodiment of the present invention, an auxiliary cooling device is further included. The auxiliary cooling device includes a compressor, a condenser, and an evaporator. The evaporator is arranged at the air outlet of the humidifier. The pipeline is connected in series between the outlet of the evaporator and the inlet of the condenser. A second pipeline is provided between the outlet of the condenser and the inlet of the evaporator to communicate with each other. The second pipeline is provided with an expansion valve, so The condenser is arranged on the outside or the top of the air supply room.

In a preferred embodiment of the present invention, an air collecting hood corresponding to the condenser is arranged on the top of the air supply room, the condenser is arranged on the air collecting hood, and a heat dissipation fan is arranged on the air collecting hood.

In a preferred embodiment of the present invention, the number of the machine room and the air supply room is two, and the air supply rooms at the ends of the two machine rooms are arranged opposite to each other.

In a preferred embodiment of the present invention, a gap or a closed maintenance channel is provided between two oppositely arranged air supply rooms.

In a preferred embodiment of the present invention, the ends of the closed maintenance aisle, the cold aisle and the hot aisle are respectively provided with safety door panels.

In a preferred embodiment of the present invention, the humidifier includes a spray water valve, a wet curtain, and a spray head. The spray head is externally connected to a water supply pipeline, and the spray water valve is arranged on the water supply pipeline. The spray head is directed to the wet curtain to supply water flow, and the control module is linearly connected with the spray water valve to control the spray water.

The beneficial effects of the present invention are: the fresh air temperature and humidity control system of the data center pointed out by the present invention is specially designed for the modular air supply room, which is convenient for transportation and can be installed at the end of an old computer room or build a new data center. Through the cooperation of external fresh air and humidifier, the temperature and humidity in the computer room can be adjusted. If necessary, hot air and fresh air in the computer room can be mixed to comprehensively adjust the temperature and humidity in the computer room. The degree of automation is high and the operation and maintenance energy consumption is low. Installation is more flexible.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings, among which:

Figure 1 is a schematic top view of a preferred embodiment of a data center fresh air temperature and humidity control system according to the present invention;

Figure 2 is a perspective view of Figure 1;

3 is a schematic structural diagram of another preferred embodiment of a data center fresh air temperature and humidity control system according to the present invention;

Figure 4 is a top view of Figure 3;

Figure 5 is a perspective view of Figure 3;

6 is a schematic top view of another preferred embodiment of a fresh air temperature and humidity control system for a data center according to the present invention;

Figure 7 is a perspective view of Figure 3;

8 is a working principle diagram of a preferred embodiment of a data center fresh air temperature and humidity control system according to the present invention;

9 is a schematic top view of another preferred embodiment of a data center fresh air temperature and humidity control system according to the present invention;

Figure 10 is a perspective view of Figure 9;

11 is a schematic top view of another preferred embodiment of a data center fresh air temperature and humidity control system according to the present invention;

Fig. 12 is a perspective view of Fig. 11.

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Please refer to Figures 1 to 8, the embodiments of the present invention include:

Example 1:

The data center fresh air temperature and humidity control system shown in Figure 1 to Figure 2 includes:

The computer room 17, which can be an old computer room for transformation, or a newly designed modular computer room, is provided with a cold aisle 26 and a hot aisle 27, the cold aisle 26 and the hot aisle 27 are arranged in the computer room in parallel, and the cold aisle 26 A load installation rack 16 for server installation is set between the hot aisle and the hot aisle. The cold air in the cold aisle 26 enters the hot aisle 27 through the load installation rack 16, which can take away the heat of the server and realize the temperature and humidity adjustment of the computer room 17. ；

The air supply room 1 is set at one end of the machine room 17 with a built-in humidifier 8 to divide the internal space into a mixing chamber 29 and an air supply chamber 30. The humidifier 8 includes a spray water valve 7, a wet curtain and a spray head 32, The sprinkler head 32 is externally connected to the water supply pipeline, the sprinkler valve 7 is arranged on the water supply pipeline 19, and the water supply pipeline can also be provided with a pressure reducing valve 6 to avoid the problem of excessive water flow pressure. 32 points to the wet curtain to supply water flow, the control module is linearly connected with the spray water valve 7 (the spray water valve 7 can be an electromagnetic water valve) to realize the control of the spray water, the wet curtain is used to humidify the air flow, and the water supply pipe The joint at the end of road 19 is connected with the tap water pipe to realize water supply and convenient connection;

The air supply chamber 30 is in communication with the cold aisle 26, and a mesh door panel 14 is provided where the air supply chamber 30 and the cold aisle 26 communicate. The meshes on the mesh door panel 14 are evenly densely distributed to improve the stability of the air flow in the cold channel, and The small mesh diameter can also prevent insects and large particles of dust from entering, and improve the operational safety of the server;

The fresh air valve 2 is installed inside or outside the air supply room 1 to control the communication between the outside air and the air mixing chamber. As shown in Figures 1 to 2, the air supply room 1 is provided with shutters corresponding to the air inlet of the fresh air valve 2 on the side 28. At this time, the fresh air valve 2 is set in the air supply room 1 to avoid obtrusions on the outside and reduce space occupation;

The return air valve 13 is arranged on the inside or outside of the air supply room 1 and corresponds to the hot aisle 27. It controls the communication between the hot aisle 27 and the air mixing chamber 29. By controlling the opening and closing of the return air valve 13, hot air and external fresh air are realized the mix of;

The exhaust valve 18 is arranged on the top or side wall of the machine room 1 to control the communication between the hot passage 27 and the outside air, and the exhaust valve 18 and the return valve 13 are controlled to adjust the exhaust;

The centrifugal fan 9 is arranged on the side of the humidifier 8. As shown in FIG. 1, the centrifugal fan 9 is located on the side of the air delivery chamber 30, and a negative pressure is formed by the deflector so that the airflow in the air mixing chamber 29 enters the air delivery chamber 30;

The control module adopts a PLC controller and is connected to the centrifugal fan 9, fresh air valve 2, return air valve 13 and discharge valve 18 for operation control. The control module can be installed outside the air supply room 1, with its own touch screen, which is convenient Adjust and display temperature and humidity data;

The air supply temperature and humidity sensor 10 is arranged in the air supply chamber 30 and is connected to the control module to monitor the temperature and humidity of the air supply air flow, which is conducive to automatic adjustment;

The fresh air temperature and humidity sensor 12 is set at the outside of the air supply room 1 or at the air inlet of the fresh air valve 2, and is connected to the control module to monitor the temperature and humidity of the outside fresh air flow. According to the temperature and humidity of the outside fresh air flow and the internal temperature of the machine room 17 To compare the humidity, adjust the opening of each air valve;

The return air temperature and humidity sensor 11 is arranged in the hot aisle 27 or at the air inlet of the return air valve 13, and is connected to the control module to monitor the return air temperature and humidity, that is, to monitor the temperature and humidity in the computer room 17 for the purpose of The temperature and humidity in the computer room 17 are controlled within a certain range to improve the working stability of the server.

Use the control module to adjust the opening of the fresh air valve 2, the return air valve 13 and the exhaust valve 18 to realize the combination of multiple modes:

In the first type, the fresh air valve 2, the return air valve 13 and the exhaust valve 18 are all opened at a certain angle to realize the mixing of fresh air and hot air, and control the temperature and humidity in the machine room 17, as shown in Figure 8;

In the second type, the fresh air valve 2 and the exhaust valve 18 are opened at a certain angle, the return air valve 13 is closed, and the fresh air is used to control the temperature and humidity in the machine room 17;

In the third type, the fresh air valve 2 and the exhaust valve 18 are closed, the return air valve 13 is opened, and hot air is used to control the temperature and humidity in the machine room 17.

Example 2:

In special environments, such as areas with relatively hot climates, it is difficult to achieve the target temperature only by using fresh air from the outside. At this time, it is necessary to add auxiliary cooling equipment on the basis of Example 1, as shown in Figures 3 to 5, the auxiliary cooling The equipment includes a compressor 21, a condenser 22, and an evaporator 20. The evaporator 20 is arranged at the air outlet of the humidifier 8. The compressor is connected in series between the outlet of the evaporator 20 and the inlet of the condenser using a first pipeline. A second pipeline is provided between the outlet of the condenser 22 and the inlet of the evaporator 22 to communicate with each other. An expansion valve 31 is provided on the second pipeline to control the second pipeline. The compressor 21 uses The control module controls, when the fresh air is insufficient for internal cooling, the compressor 21 is turned on to achieve auxiliary cooling of the air flow.

The condenser 22 can be arranged on the outside or the top of the air supply room 1. As shown in FIG. 3, the top of the air supply room 1 is provided with an air collecting hood 24 corresponding to the condenser 22, and the condenser 22 is arranged at The air collecting hood 24 reduces the increase in overall length. The air collecting hood 24 is provided with a heat dissipating fan 23. The heat dissipating fan 23 is controlled by a control module. After opening, the airflow is sent to the air collecting hood 24 to increase the air collecting hood 24. The internal air pressure, and then the air flow escapes through the condenser 22, taking away the heat on the condenser 22.

Example 3:

As shown in Figures 9 to 10, based on the reconstruction of Example 1, the hot aisles 27 are arranged in parallel on both sides of the cold aisle 26. At this time, the number of hot aisles 27 is two, and the number of cold aisles 26 is One, the number of humidifiers is also two, and the internal space of the air supply room is divided into two sets of mixing chambers 29 and air supply chambers 30. The two air mixing chambers 29 correspond to the hot aisle 27 one by one, and the two air supply chambers 30 Combining the two into one, serving a cold aisle together, reducing the number and cost of components, and two rows of servers can be installed to expand server capacity.

Example 4:

As shown in Figures 11-12, on the basis of Example 3, an auxiliary cooling device is added. As shown in the working principle diagram of Figure 8, the control module realizes the mixing of external fresh air and hot air through the control of the valve. After the device is sent into the cold aisle, the temperature and humidity control of the area where the load installation rack is located is realized.

Example 5:

As shown in Figures 6-7, the number of the computer room 17 and the air supply room 1 can also be two. The air supply rooms at the ends of the two computer rooms 17 are arranged opposite to each other. The clearance or closed maintenance passage 25, the ends of the closed maintenance passage 25, the cold aisle 26 and the hot aisle 27 are respectively provided with a safety door 15 to facilitate maintenance by the staff.

To sum up, the present invention points out a data center fresh air temperature and humidity control system. The air supply room 1 is specially designed, which is flexible in transportation and assembly, and can cooperate with data centers of various structures to realize the transformation, construction and combination of data centers. , Make full use of natural fresh air to control the temperature and humidity of the data center and reduce energy consumption.

The above are only the embodiments of the present invention and do not limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the present invention description, or directly or indirectly applied to other related technical fields, are all The same reason is included in the scope of patent protection of the present invention.

Claims

A data center fresh air temperature and humidity control system, which is characterized in that it includes:

The computer room is equipped with cold aisles and hot aisles, and a load installation rack for server installation is set between the cold aisles and hot aisles;

The air supply room is set at one end of the machine room with a built-in humidifier to divide the internal space into a mixing room and an air supply room, the air supply room being connected with the cold passage;

The fresh air valve is set inside or outside the air supply room to control the communication between the outside air and the air mixing chamber;

The return air valve is set inside or outside the air supply room to control the communication between the hot channel and the air mixing chamber;

The exhaust valve is set on the top or side wall of the machine room to control the communication between the hot aisle and the outside air;

The centrifugal fan is set on the side of the humidifier so that the airflow in the air mixing chamber enters the air delivery chamber;

The control module is respectively connected with the centrifugal fan, fresh air valve, return air valve and discharge valve for operation control;

The supply air temperature and humidity sensor is set in the supply room and connected with the control module to monitor the temperature and humidity of the supply air flow;

The fresh air temperature and humidity sensor is set on the outside of the air supply room or at the air inlet of the fresh air valve, and is connected to the control module to monitor the temperature and humidity of the outside fresh air flow;

The return air temperature and humidity sensor is arranged in the hot aisle or at the air inlet of the return air valve, and is connected to the control module to monitor the return air temperature and humidity.
The data center fresh air temperature and humidity control system according to claim 1, wherein the cold aisle and the hot aisle are horizontally arranged in the computer room, and a mesh door panel is provided at the connection between the air supply chamber and the cold aisle.
The data center fresh air temperature and humidity control system according to claim 1, wherein the hot aisles are arranged on both sides of the cold aisle in parallel, at this time, the number of hot aisles is two, the number of cold aisles is one, and the humidification The number of the air supply is also two, and the internal space of the air supply room is divided into two groups of mixing chambers and air supply chambers. The two air mixing chambers correspond to the hot aisle one by one, and the two air supply chambers together serve a cold aisle.
The data center fresh air temperature and humidity control system according to claim 1, wherein a filter located at the outlet of the fresh air valve is provided in the air supply room, and the filter includes a series-connected primary filter and a medium-efficiency filter. filter.
The data center fresh air temperature and humidity control system according to claim 1, characterized in that it further comprises an auxiliary cooling device, the auxiliary cooling device includes a compressor, a condenser and an evaporator, and the evaporator is arranged at the outlet of the humidifier. A tuyere, the compressor uses a first pipeline to connect in series between the outlet of the evaporator and the inlet of the condenser, and a second pipeline is provided between the outlet of the condenser and the inlet of the evaporator to communicate with each other. An expansion valve is arranged on the second pipeline, and the condenser is arranged on the outside or the top of the air supply room.
The data center fresh air temperature and humidity control system according to claim 5, wherein the top of the air supply room is provided with an air collecting hood corresponding to the condenser, the condenser is arranged on the air collecting hood, and the A heat dissipation fan is arranged on the air collecting hood.
The data center fresh air temperature and humidity control system according to claim 1, wherein the number of the computer room and the air supply room is two, and the air supply rooms at the ends of the two computer rooms are arranged oppositely.
The data center fresh air temperature and humidity control system according to claim 7, characterized in that a gap or a closed maintenance channel is provided between two oppositely arranged air supply rooms.
The data center fresh air temperature and humidity control system according to claim 8, wherein the ends of the closed maintenance aisle, the cold aisle and the hot aisle are respectively provided with safety door panels.
The data center fresh air temperature and humidity control system according to claim 1, wherein the humidifier includes a spray valve, a wet curtain, and a spray head, and the spray head is externally connected to a water supply pipeline, and the spray The water valve is arranged on the water supply pipeline, the spray head points to the wet curtain to supply water flow, and the control module is linearly connected with the spray water valve to control the spray water.