WO2022110744A1 - Data center device - Google Patents

Abstract

Provided in the embodiments of the present application is a data center device. The data center device comprises a machine room and a refrigerating system. The machine room is internally provided with at least one machine cabinet, and a plurality of layers of loads are arranged in the machine cabinet. The refrigerating system comprises at least one row-level multi-connected air conditioner; each row-level multi-connected air conditioner comprises an indoor unit and an outdoor unit, which are connected to each other, the indoor unit being located in the machine room, and the outdoor unit being located outside the machine room; the indoor unit comprises a plurality of sub indoor units, which are connected in parallel; and the indoor unit and the machine cabinet are arranged in parallel, and the plurality of sub indoor units are respectively opposite the plurality of layers of loads in the machine cabinet, so as to make cold air blown out of the plurality of sub indoor units blow toward the loads of each layer, thereby solving the problem of an existing data center device having a poor refrigeration effect and wasting energy.

Description

data center installation

This application claims the priority of the Chinese patent application with the application number 202011344883.X and the application name "Data Center Device" filed with the China Patent Office on November 26, 2020, the entire contents of which are incorporated into this application by reference.

technical field

The present application relates to the technical field of data center devices, and in particular, to a data center device.

Background technique

Such as Internet service providers, enterprise platforms, research institutions, etc. all require a lot of computing requirements, and the operating platform that carries storage, computing and network requirements is called a data center. A data center is a global collaborative network of specific devices used to transmit, accelerate, display, compute, and store data information on the Internet infrastructure. Most of the electronic components in a data center are powered by low DC power.

With the increasing demand for information and communication technology in modern society, the data center has also been developed rapidly, and the information and communication technology (Information and Communication Technology, ICT) equipment in the data center has gradually changed from low density to high. With the development of density, high-density ICT equipment will generate a lot of heat during operation. Therefore, a cooling system needs to be set up in the data center to ensure the normal operation of the ICT equipment in the data center. In the prior art, row-level air conditioners are usually installed between the cabinets in the data center room, which has achieved the purpose of cooling the ICT equipment on the cabinets. Currently, row-level air conditioners are composed of a single-circuit refrigeration cycle, and the compressor compresses the refrigerant to a high temperature. The high-pressure gas is cooled by the condenser to form a normal temperature and high-pressure liquid, which enters the expansion valve for throttling, and the throttled refrigerant becomes a two-phase state of low temperature and low pressure, and evaporates and absorbs heat in the evaporator to complete the cycle.

However, such row-level air conditioners can only uniformly adjust the temperature of the entire cabinet. In order to ensure the safety and reliability of cooling, the set temperature range is usually low, resulting in waste of energy and condensation in the equipment room. If the set temperature range is increased, the cooling effect will not be achieved for the modules with large local load in the cabinet, resulting in local hot spots on the cabinet, affecting the normal operation of the ICT equipment in the local cabinet.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a data center device capable of accurately cooling a cabinet, reducing local hot spots, and reducing energy waste.

An embodiment of the present application provides a data center device, including: a computer room and a cooling system, the computer room is provided with at least one cabinet, and the cabinet is provided with a multi-layer load, wherein,

The refrigeration system includes at least one row-level multi-stage air conditioner;

Each of the row-level multi-connected air conditioners includes a connected indoor unit and an outdoor unit, the indoor unit is located in the equipment room, and the outdoor unit is located outside the equipment room;

The indoor unit includes a plurality of sub-indoor units connected in parallel;

The indoor units are arranged side by side with the cabinet, and a plurality of the sub-indoor units are respectively opposed to the multi-layer loads in the cabinet, so that the cold air blown by the plurality of the sub-indoor units is blown to the each layer of the load. load.

In the data center device provided by the embodiments of the present application, the indoor unit is designed to include a plurality of sub-indoor units arranged in parallel, the indoor unit and the cabinet are arranged in parallel, and the plurality of sub-indoor units are respectively opposite to the multi-layer loads in the cabinet, so that The cold air blown by multiple sub-indoor units is blown to the loads on each layer, so that each sub-indoor unit can accurately cool the different loads on each layer of the cabinet, which can effectively prevent local hot spots on the cabinet and avoid causing cabinet failures. In addition, Precise cooling of the load on the cabinet can also effectively save energy.

As an explanation, since the loads on different layers in the same cabinet work at different powers, the heat generated by the loads on different layers is also different, that is, there is a gradient difference in the heat dissipation required by the loads on different layers. The row-level air conditioner cannot accurately cool the different loads on the cabinet. If the adjustment temperature is set to a higher value, the cooling effect will not be achieved. If the adjustment temperature value is set to a lower value, energy will be wasted. For example, by setting up a row-level multi-connected air conditioner in the refrigeration system, and setting the indoor units as multiple sub-indoor units connected in parallel, the loads on different layers of the cabinet can be precisely temperature-regulated, thereby preventing local hot spots in the cabinet, and Energy waste can be avoided.

In a possible implementation manner of the first aspect, each of the sub-indoor units includes an evaporator and a throttling device;

The outlet end of the throttling device is connected to the inlet end of the evaporator, and the throttling device is used to control the amount of refrigerant entering the evaporator;

Each of the evaporators is opposed to each of the loads within the cabinet.

In a possible implementation manner of the first aspect, each of the sub-indoor units includes an indoor fan, the indoor fan is disposed close to the evaporator, and an air outlet of the indoor fan faces the evaporator.

In a possible implementation manner of the first aspect, the indoor unit further includes: a liquid separator, an inlet end of the liquid separator is connected to the outdoor unit, and an outlet end of the liquid separator is connected to each of the The throttling devices in the sub-indoor units are all connected.

In a possible implementation manner of the first aspect, the indoor unit further comprises: a gas collecting pipe, the outlet end of the evaporator in each of the sub-indoor units is connected to the gas collecting pipe, the collecting pipe is The outlet end of the air pipe is connected to the outdoor unit.

In a possible implementation manner of the first aspect, the indoor unit further includes: at least one compressor;

The outlet end of the gas header is connected to the inlet end of at least one of the compressors;

The outlet end of the compressor is connected to the outdoor unit.

In a possible implementation manner of the first aspect, the indoor unit further includes: at least one drier filter, and the drier filter is arranged on the pipeline between the compressor and the gas collecting pipe.

In a possible implementation manner of the first aspect, the outdoor unit includes at least one condenser and at least one outdoor fan;

the outdoor fan is arranged close to the condenser;

The outlet end of the condenser is connected with the liquid separator, and the inlet end of the condenser is connected with the outlet end of the compressor.

In a possible implementation manner of the first aspect, the outdoor unit further includes a liquid storage tank, the liquid storage tank is on a pipeline between the condenser and the inlet end of the indoor unit, and the The outlet end of at least one condenser is connected to the liquid storage tank.

In a possible implementation manner of the first aspect, the number of the condenser, the compressor and the drying filter is multiple;

The inlet ends of the plurality of drying filters are all connected with the gas collecting pipe;

The outlet ends of the plurality of condensers are all connected with the liquid storage tank.

In a possible implementation manner of the first aspect, the throttling device is an electronic expansion valve.

In a possible implementation manner of the first aspect, the indoor unit further includes a control panel;

The control panel is electrically connected to the plurality of sub-indoor units, and the control panel is used to control the outlet air temperature of each of the sub-indoor units.

In a possible implementation manner of the first aspect, the refrigeration system further includes a plurality of row-level air conditioners, and the row-level air conditioners are arranged at intervals between the cabinets.

These and other aspects, implementations, and advantages of exemplary embodiments will become apparent from the embodiments described hereinafter, taken in conjunction with the accompanying drawings. It should be understood, however, that the description and drawings are for illustration only and do not serve as definitions of limitations to the present application, see the appended claims for details. Other aspects and advantages of the present application will be set forth in the following description, and in part will be apparent from the description, or learned by practice of the present application. Furthermore, the various aspects and advantages of the present application may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

Description of drawings

1A is a schematic three-dimensional structural diagram of a data center device provided by an embodiment of the present application;

FIG. 1B is a schematic diagram of an internal structure of a data center device provided by an embodiment of the present application;

2 is a schematic diagram of the internal structure of a row-level multi-connected air conditioner provided by an embodiment of the present application;

3 is a schematic diagram of the internal structure of a row-level air conditioner provided by an embodiment of the present application;

4 is a schematic working diagram of a row-level multi-connected air conditioner provided by an embodiment of the present application;

5 is a schematic diagram of a refrigeration cycle process of a row-level multi-connected air conditioner provided by an embodiment of the present application;

6 is a schematic diagram of a refrigeration cycle process of a row-level air conditioner provided by an embodiment of the present application;

7 is a schematic diagram of a cooling effect of a row-level air conditioner provided by an embodiment of the present application;

8 is a schematic diagram of a cooling effect of a row-level multi-connected air conditioner provided by an embodiment of the present application;

9 is a schematic diagram of a refrigeration cycle process of a row-level multi-connected air conditioner provided by another embodiment of the present application;

FIG. 10 is a schematic diagram of a refrigeration cycle process of a row-level multi-connected air conditioner provided by another embodiment of the present application.

Description of reference numbers:

10-data center device; 20-computer room; 21-cabinet; 21a-cabinet with the same load power;

31-row-level multi-connected air conditioner; 32-row-level air conditioner; 33-indoor unit; 33a-row-level air conditioner indoor unit;

331-evaporator; 332-indoor fan; 333-throttle device; 334-gas collecting pipe;

335- liquid separator; 336- compressor; 337- filter drier; 338- sub-indoor unit;

34-outdoor unit; 34a-in-row air conditioner outdoor unit; 341-condenser; 342-outdoor fan;

343 - Reservoir.

Detailed ways

The terms used in the embodiments of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The following will describe the embodiments of the embodiments of the present application in detail with reference to the accompanying drawings.

Embodiments of the present application provide a data center device. The cooling system of the data center device can accurately cool the cabinet, which can save energy on the one hand, and avoid cabinet failure caused by local hot spots in the cabinet on the other hand.

A data center is a global collaborative network of specific devices used to transmit, accelerate, display, compute, and store data information on the Internet infrastructure. Most of the electronic components in a data center are powered by low DC power.

In the past, room-level air conditioners and under-floor air supply were generally used in data center computer rooms. This method has low construction cost and high equipment room utilization. However, with the large-scale application of rack and blade servers in computer rooms, the number of equipment, power density, and heat density in a single cabinet have increased significantly. Traditional computer room-level air conditioners can no longer solve the heat dissipation problem of IT equipment. Panel air conditioners came into being. The end of this new type of air conditioner is closer to the heat source, which can solve the problems of local hot spots and high heat generation density. However, regardless of room-level air conditioners, row-level air conditioners, or backplane air conditioners, the air is first cooled, and then the cooling air is cooled by heat exchange with the server's CPU. Due to the low heat exchange efficiency and low heat flux density of air, air-cooled servers have problems such as high cooling energy consumption, high noise, and low equipment density.

As described in the background art, the existing data centers generally use row-level air conditioners to cool the cabinets in the data center computer room. In the current row-level air conditioners, a temperature sensor is installed at the air outlet, and the temperature detected by the temperature sensor is generally used as a control parameter to control the temperature. Row-level air conditioners are used for cooling. If the temperature sensor at the air outlet of a row-level air conditioner detects that the temperature of the cabinet deviates from the set temperature range, the outlet air temperature of the row-level air conditioner will be adjusted. To ensure the safety and reliability of cooling, the set temperature The range is usually low, which results in a waste of energy. At the same time, since each row-level air conditioner controls the outlet air temperature according to its own corresponding temperature sensor, all the cooling capacity output by each row-level air conditioner is at a relatively low level. At a high level, the calorific value of the cabinet load does not match the cooling capacity of the row-level air conditioner. On the one hand, it causes energy waste, and on the other hand, local hot spots may occur, causing the cabinet to fail.

Therefore, in order to solve the above problems, in this embodiment, as shown in FIGS. 1-10 , a data center device 10 is provided, which can accurately cool the cabinets 21 in the equipment room 20 , which can reduce energy waste on the one hand, and reduce the energy consumption on the other hand. On the one hand, it can prevent the cabinet 21 from generating local hot spots and causing the cabinet 21 to fail.

An embodiment of the present application provides a data center device 10. FIG. 1A is a schematic three-dimensional structure diagram of the data center device 10 provided by an embodiment of the present application; FIG. 1B is a schematic diagram of the internal structure of the data center device provided by an embodiment of the present application; FIG. 2 is the internal structural intent of the row-level multi-connected air conditioner 31 provided by an embodiment of the present application. As shown in FIG. 1-2, the data center device 10 may include: a computer room 20 and a cooling system. The computer room 20 is provided with at least one cabinet 21 (in the figure, there are three cabinets 21), and the cabinet 21 is provided with multiple layers of loads. Wherein, the refrigeration system includes at least one row-level multi-connected air conditioner 31; each row-level multi-connected air conditioner 31 includes a connected indoor unit 33 and an outdoor unit 34, the indoor unit 33 is located in the computer room 20, and the outdoor unit 34 is located outside the computer room 20; The indoor unit 33 includes a plurality of sub-indoor units 338 connected in parallel; the indoor unit 33 is arranged in parallel with the cabinet 21, and the plurality of sub-indoor units 338 are respectively opposite to the multi-layer loads in the cabinet 21, so that the cooling air blown out by the plurality of sub-indoor units 338 is provided. Air is blown towards each layer of the load.

It should be noted that the machine room 20 is generally provided with a plurality of cabinets 21 arranged in a matrix. The cabinets 21 are generally rectangular parallelepiped cabinet-like structures. There is a load, and the loads on different layers in the cabinet 21 work with different powers. Therefore, the heat generated by the same cabinet 21 at different positions in the vertical direction is not the same, so the heat that needs to be dissipated is not the same.

Therefore, at least one row-level multi-connected air conditioner 31 can be installed in the refrigeration system, and the racks 21 with different loads in the vertical direction are corresponding to the row-level multi-connected air conditioner 31, and the load power in the vertical direction is the same. The cabinet 21a can correspond to the row-level air conditioner 32 or the row-level multi-connected air conditioner 31 .

FIG. 3 is a schematic diagram of the internal structure of the row-level air conditioner 32 provided by an embodiment of the present application; FIG. 4 is a schematic working diagram of the row-level multi-connected air conditioner provided by an embodiment of the present application. As shown in FIGS. 3 and 4 , the row-level multi-connected air conditioner 31 in this embodiment includes an indoor unit 33 and an outdoor unit 34 , the indoor unit 33 and the outdoor unit 34 are connected by pipelines, and the indoor unit 33 is arranged in the equipment room 20 and is connected to the cabinet 21 are arranged in parallel, and the outdoor unit 34 is arranged outside the machine room 20 . The indoor unit 33 includes a plurality of sub-indoor units 338 connected in parallel, and the plurality of sub-indoor units 338 connected in parallel are arranged in a vertical direction to ensure that each sub-indoor unit 338 corresponds to a different layer of the cabinet 21, so that different layers of the cabinet 21 can be achieved. Layer load for precise cooling effect.

Further, the indoor unit 33 in this embodiment may include: a compressor 336, a liquid separator 335, a gas collecting pipe 334, an evaporator 331, an indoor fan 332 and a throttling device 333, and the outdoor unit 34 may include a condenser 341, an outdoor The fan 342, the liquid storage tank 343, the indoor unit 33 and the outdoor unit 34 are connected by pipelines.

As an explanation, the condenser 341 is a component of the refrigeration system, which belongs to a type of heat exchanger, which can convert gas or vapor into liquid, and transfer the heat in the pipeline to the air near the pipeline in a fast manner. .

In general, the pipeline of the condenser 341 is usually coiled into a solenoid, and the material is mostly a metal with strong thermal conductivity, such as copper.

In the actual application process, in order to improve the efficiency of the condenser 341, a heat sink with excellent thermal conductivity is often attached to the pipeline to increase the heat dissipation area, thereby accelerating heat dissipation, and setting a fan to speed up air convection, take away heat, and improve heat dissipation. Cooling speed.

Specifically, the indoor unit 33 includes a plurality of sub-indoor units 338 connected in parallel, and each sub-indoor unit 338 includes an evaporator 331 and a throttling device 333. The throttling device 333 is used to control the amount of refrigerant entering the evaporator 331, and each sub-indoor unit 338 evaporates Each sub-indoor unit 338 includes an indoor fan 332, the indoor fan 332 is arranged close to the evaporator 331, and the outlet of the indoor fan 332 faces the evaporator 331; the outlet end of the throttle device 333 is connected to the evaporator 331. The inlet end of the evaporator 331 is connected, the inlet end of the liquid separator 335 is connected with the outdoor unit 34, and the outlet end of the liquid separator 335 is connected with the throttling device 333 in each sub-indoor unit 338; The outlet end of the evaporator 331 is connected with the gas collecting pipe 334, and the outlet end of the gas collecting pipe 334 is connected with the outdoor unit 34; the outlet end of the gas collecting pipe 334 is connected with the inlet end of the compressor 336, and the outlet end of the compressor 336 is connected with the outdoor unit 34 The outdoor fan 342 is set close to the condenser 341, the outlet end of the condenser 341 is connected with the liquid separator 335, and the inlet end of the condenser 341 is connected with the outlet end of the compressor 336; the liquid storage tank 343 is connected with the indoor unit in the condenser 341 On the pipeline between the inlet ends of 33 , and the outlet end of the condenser 341 is connected to the liquid storage tank 343 .

It should be noted that in this embodiment, the models of the evaporators 331 and the indoor fans 332 in the multiple sub-indoor units 338 of the indoor unit 33 are not specifically limited, and they can be set according to specific conditions. The model of the fan 332 does not limit the scope of protection of the present application.

It should be noted that the model of the throttling device 333 in this embodiment does not limit the protection scope of the present application, and the model of the throttling device 333 can be specifically set according to specific requirements.

It should be noted that the row-level multi-connected air conditioner 31 in this embodiment also includes a control system (not shown in the figure), which is connected with the indoor unit 33 and the outdoor unit 34 through signal lines or infrared rays, and is used to assist the row The cascade air conditioner 31 precisely cools the cabinet 21 .

Specifically, the sub-indoor units 338 of the indoor unit 33 are all provided with temperature measuring devices, and the temperature measuring devices are used to measure the temperature of the load corresponding to each sub-indoor unit 338, and then transmit the temperature signal to the control system, and the control system according to the load The temperature calculates the cooling temperature required by the load, and then controls the cooling temperature of each sub-indoor unit 338 through manual operation or remote control, so that different sub-indoor units 338 can accurately cool the corresponding load.

In the following, a specific description will be given by taking the computer room 20 including a cabinet 21 as an example.

As shown in FIG. 7 , the cabinet 21 in the equipment room 20 includes five layers of loads along the vertical direction, and the powers of the loads on the cabinet 21 from top to bottom are: 10kw, 5kw, 30kw, 15kw, 1kw, after working for a period of time The heats they generate are: 40°C, 37°C, 45°C, 42°C, and 32°C, respectively.

After using the ordinary row-level air conditioner 32 for unified cooling and cooling by 10°C, the corresponding temperatures of each load are: 30°C, 27°C, 35°C, 32°C, and 22°C. It can be seen from the above data that the load of the cabinet 21 There are still high temperature points in the cabinet 21, and if the cooling process of the cabinet 21 is continued, other loads at an appropriate working temperature will be lowered to a lower temperature, which is easy to condense and waste energy. Continue to cool down, there will be local hot spots on the cabinet 21, which may cause the cabinet 21 to malfunction and not work.

Under the condition that the data in the above example remains unchanged, the row-level multi-connected air conditioner 31 in the embodiment of the present application can realize precise cooling of each load.

The following takes the above data as an example for specific description.

As shown in FIG. 8 , the cabinet 21 in the machine room 20 includes five layers of loads in the vertical direction, the indoor unit 33 of the row-level multi-connected air conditioner 31 includes five sub-indoor units 338 arranged in parallel in the vertical direction, and the five sub-indoor units 338 Corresponding to the five-layer load of the cabinet 21, specifically, the power of the load on the cabinet 21 from top to bottom is: 10kw, 5kw, 30kw, 15kw, 1kw. After working for a period of time, the temperature measuring device on the sub-indoor unit 338 The heat generated by them was measured as: 40°C, 37°C, 45°C, 42°C, and 32°C, respectively.

Assuming that 25°C is the ideal working temperature, the control system calculates the temperature reduction required by the load of each layer as: 15°C, 12°C, 20°C, 17°C, and 7°C, respectively. The regulated temperature of the sub-indoor unit 338 corresponding to the load is set to a corresponding value. After the precise cooling of the rack 21 by the row-level multi-connected air conditioner 31, the temperature of each load drops to 25°C. This precise cooling can save resources and avoid Local hot spots.

The precise temperature adjustment process using the row-level multi-connected air conditioner 31 in this embodiment will be specifically described below.

First, the plurality of sub-indoor units 338 measure the heat generated by their corresponding loads respectively; then the signals are sent to the control system, and the control system calculates the cooling capacity required by each sub-indoor unit 338 according to the temperature of the load; then the row level is controlled manually or remotely. The multi-connected air conditioner 31 performs cooling; finally, the row-level multi-connected air conditioner 31 starts the indoor unit 33 and the outdoor unit 34 to perform cooling work after receiving the cooling instruction.

Specifically, FIG. 5 is a schematic diagram of a refrigeration cycle process of a row-level multi-connected air conditioner 31 provided by an embodiment of the present application. As shown in FIG. 5 , the compressor 336 compresses the refrigerant into high temperature and high pressure gas, which is cooled by the condenser 341 to form a normal temperature and high pressure liquid, which enters the liquid storage tank 343, and then enters the throttling device 333. The refrigerant becomes a low temperature and low pressure two-phase substance, then enters the evaporator 331, evaporates and absorbs heat in the evaporator 331, and finally returns to the compressor 336 through the gas collecting pipe 334 to complete the system cycle.

Further, the throttling device 333 in this embodiment can control the amount of refrigerant entering into different sub-indoor units 338, so as to control the refrigerating capacity of different sub-indoor units 338 to be different, thereby ensuring that the sub-indoor units 338 perform the corresponding load operation. Precise cooling, thus saving energy.

Further, in this embodiment, the cooling capacity of the corresponding evaporator 331 can also be adjusted by adjusting the air supply volume of the indoor fan 332 in each sub-indoor unit 338, thereby controlling the cooling capacity of the indoor unit 33 on the vertical plane. output, so as to achieve precise temperature regulation of the loads on different layers of the cabinet 21 .

Further, in this embodiment, the throttling device 333 and the indoor fan 332 can also jointly adjust the cooling capacity output of the sub-indoor unit 338 on the vertical plane, thereby realizing precise temperature adjustment of the loads on different layers of the cabinet 21 .

It should be noted that the throttling device 333 is a flow device in which the fluid that fills the pipeline flows through the pipeline, and the flow beam will form a local contraction at the throttling part, thereby increasing the flow rate and reducing the static pressure. A static pressure difference is created.

The throttling device 333 in this embodiment is an expansion valve, which is an important component in the refrigeration system and is installed between the liquid storage cylinder and the evaporator 331 . The expansion valve can make the liquid refrigerant of medium temperature and high pressure become wet steam of low temperature and low pressure through its throttling, and then the refrigerant absorbs heat in the evaporator 331 to achieve the cooling effect. , so as to control the amount of refrigerant entering the evaporator 331 , and prevent the phenomenon of insufficient utilization of the area of the evaporator 331 and cylinder knocking.

It should be noted that the throttling device 333 can also be an electronic expansion valve. The driving mode of the electronic expansion valve is that the controller calculates the parameters collected by the sensor, sends out adjustment instructions to the drive board, and the drive board outputs the output to the electronic expansion valve. The electrical signal drives the action of the electronic expansion valve. The electronic expansion valve takes only a few seconds from fully closed to fully open state, the response and action speed are fast, and the applicable temperature is low, which can play a role in energy saving.

In a further embodiment of the present application, the indoor unit 33 may further include a control panel, the control panel is electrically connected to the plurality of sub-indoor units 338 , and the control panel is used to control the outlet air temperature of each sub-indoor unit 338 .

It should be noted that the control panel can be used to display the temperature of each sub-indoor unit 338 corresponding to the load, and can also be used for the staff to set the cooling temperature, that is, the staff can manually set each sub-indoor unit 338 through the control panel cooling temperature. In this way, by setting the display panel, the calorific value generated by the loads at different levels can be intuitively seen, and the cooling temperature of each sub-indoor unit 338 can be conveniently set, which is convenient and fast.

In a further embodiment of the present application, the staff can also remotely control the cooling temperature of each sub-indoor unit 338 through a remote controller. This enables remote control of the refrigeration system, which can reduce staffing and thus save labor.

It should be noted that the pipeline connection between the indoor unit 33 and the outdoor unit 34 can be connected by copper pipes. In addition, the connection between the components of the indoor unit 33 and the outdoor unit 34 can also be connected by copper pipes. When the multi-connected air conditioner 31 is working, the refrigerant takes away the heat generated by the cabinet 21 through the change of different phases, and completes the effect of circulating refrigeration by flowing in the copper pipes between the components.

In a further embodiment of the present application, the indoor unit 33 may further include a drying filter 337 , and the drying filter 337 is arranged on the pipeline between the compressor 336 and the gas collecting pipe 334 . In this way, the gas entering the compressor 336 from the evaporator 331 can be effectively dried and filtered, so as to ensure that the refrigerant entering the compressor 336 is dry and free of impurities, so as to ensure the service life of the compressor 336 and reduce the loss.

It should be noted that the outdoor unit 34 further includes a liquid storage tank 343 . The liquid storage tank 343 is on the pipeline between the condenser 341 and the inlet end of the indoor unit 33 , and the outlet end of the condenser 341 is connected to the liquid storage tank 343 .

By arranging the liquid storage tank 343 between the condenser 341 and the indoor unit 33, the normal temperature and high pressure liquid from the condenser 341 can be collected, and then enter the throttling device 333 of the indoor unit 33, so that the condenser 341 and the A transition is formed between the throttling devices 333, thereby ensuring that the refrigerant can smoothly enter into different throttling devices 333, so as to avoid the problem of unsmooth refrigerant supply.

In the row-level multi-connected air conditioner 31 of the data center device 10 in the embodiment of the present application, since the indoor unit 33 includes a plurality of sub-indoor units 338, during use, the evaporators 331 of some sub-indoor units 338 can be shut down to achieve dehumidification function, no need to configure additional dehumidifier, saving space and equipment cost.

As an explanation, when the row-level multi-connected air conditioner 31 is used to cool the cabinet 21, the evaporators 331 in some of the sub-indoor units 338 can be turned off, so that the temperature of the evaporators 331 that are not turned off will continue to be lower, so that the The water vapor in the air in the indoor unit 33 encounters the low-temperature evaporator 331 and condenses, and then the condensed water is drained out of the indoor unit 33 by setting a drain pipe at the bottom of the indoor unit 33, so that the indoor unit 33 can be dehumidified. In this way, it can not only dehumidify, but also alleviate the corrosion of the equipment, thereby prolonging the service life of the equipment.

In other embodiments of the present application, FIG. 9 is a schematic diagram of a refrigeration cycle process of a row-level multi-connected air conditioner 31 provided by yet another embodiment of the present application; as shown in FIG. 9 , the data center device 10 may include: a computer room 20 and a cooling system System, the machine room 20 is provided with at least one cabinet 21 , and the cabinet 21 is provided with multi-layer loads, wherein the refrigeration system includes at least one row-level multi-connected air conditioner 31 .

The number of condensers 341 , compressors 336 and drying filters 337 in the row-level multi-stage air conditioner 31 can be multiple, and the inlet ends of the multiple drying filters 337 are all connected to the gas collecting pipe 334 , and each compressor 336 The inlet end of each compressor 336 is connected with the outlet end of a drying filter 337, the outlet end of each compressor 336 is connected with the inlet end of a condenser 341, and the outlet ends of a plurality of condensers 341 are connected with the liquid storage tank 343; The outlet end of the liquid storage tank 343 is connected to the inlet end of the liquid separator 335, the outlet end of the liquid separator 335 is connected to the inlet end of the throttle device 333 in each sub-indoor unit 338, and the outlet end of the throttle device 333 is connected to the The inlet end of the evaporator 331 is connected; the outlet end of the evaporator 331 is connected with the inlet end of the gas collecting pipe 334 , and the outlet end of the gas collecting pipe 334 is connected with the inlet ends of a plurality of drying filters 337 .

In this way, by arranging a plurality of condensers 341, compressors 336 and drying filters 337, the passage between the compressor 336 and the evaporator 331 can be increased, so that when one of the compressors 336 or the condenser 341 fails, it can be switched to other The circuit is used to ensure the normal operation of the refrigeration system, realize on-line maintenance, buy time for maintenance, and reduce the risk that the entire machine room 20 cannot work normally due to the failure of the refrigeration system.

It should be noted that, generally, the condenser 341 can be used in conjunction with the outdoor fan 342, and the outdoor fan 342 can accelerate the heat dissipation of the condenser 341, thereby improving the heat dissipation efficiency.

It should be noted that, in the above embodiment, the number of the condenser 341 , the compressor 336 and the filter drier 337 can be set according to the actual situation, and their specific numbers do not limit the protection scope of the present application.

As shown in FIG. 9 , two passages between the compressor 336 and the evaporator 331 can be set, so that a backup passage can be added between the evaporator 331 and the compressor 336, so that when the compressor 336 fails , the compressor 336 of the backup path can be activated to ensure the normal operation of the refrigeration system.

It should be noted that the refrigeration system of the data center device 10 of the present application may further include a plurality of row-level multi-connected air conditioners 31 and a plurality of row-level air conditioners 32, and the row-level multi-connected air conditioners 31 and the plurality of row-level air conditioners 32 are arranged at intervals in between cabinets 21. Specifically, the row-level multi-connected air conditioners 31 are arranged between the cabinets 21 with different load powers on each layer, and the row-level air conditioners 32 are arranged between the cabinets 21a with the same load power on each layer.

In this way, the row-level multi-connected air conditioners 31 can be used to accurately cool the cabinets 21 with different loads, and the row-level air conditioners 32 can be used to uniformly cool the cabinets 21 with the same load, so that the resources can be reasonably utilized, the equipment of the refrigeration system can be simplified, and the equipment can be saved. cost.

In addition, it should be noted that the racks 21 in different data center devices 10 are different, so the number of row-level multi-connected air conditioners 31 and the number of row-level air conditioners 32 in the refrigeration system can be set according to specific conditions, that is to say , the number of multi-connected air conditioners and the number of row-level air conditioners 32 do not limit the protection scope of the technical solution of the present application, as long as the row-level multi-connected air conditioners 31 are included within the protection scope of the present application.

As an explanation, FIG. 6 is a schematic diagram of a refrigeration cycle process of a row-level air conditioner 32 provided by an embodiment of the present application. As shown in FIG. 6 , the row-level air conditioner 32 includes a row-level air conditioner indoor unit 33a and a row-level air conditioner outdoor unit 34a. The stage air conditioner outdoor unit 34a includes a condenser 341, an outdoor fan 342 and a liquid storage tank 343, and the row air conditioner indoor unit 33a includes an evaporator 331, an indoor fan 332, a throttling device 333, a compressor 336 and a drying filter 337.

Specifically, the outlet end of the throttling device 333 is connected to the inlet end of the evaporator 331, and the throttling device 333 is used to control the amount of refrigerant entering the evaporator 331, and the evaporator 331 is opposite to each load in the cabinet 21; The outlet end is connected to the inlet end of the filter drier 337, the outlet end of the filter drier 337 is connected to the inlet end of the compressor 336, and the outlet end of the compressor 336 is connected to the outdoor unit 34a of the row air conditioner; The outlet end is connected to the inlet end of the condenser 341 , the outdoor fan 342 is arranged close to the condenser 341 , the outlet end of the condenser 341 is connected to the inlet end of the liquid storage tank 343 , and the outlet end of the liquid storage tank 343 is connected to the inlet of the throttling device 333 end connection. Such a row-level air conditioner 32 has a simple structure and can uniformly cool the cabinets 21 .

It should be noted that the row-level air conditioner indoor unit 33a of the row-level air conditioner 32 only includes a set of evaporator 331, indoor fan 332, throttling device 333, compressor 336 and drying filter 337, that is to say, the row-level air conditioner 32 can be A single-circuit refrigeration cycle is performed, so only a uniform cooling process can be performed on the cabinet 21 .

As an explanation, the refrigeration cycle process of the row-level air conditioner 32 includes: the compressor 336 compresses the refrigerant into a high-temperature and high-pressure gas, which is cooled by the condenser 341 to form a normal-temperature high-pressure liquid, which enters the throttling device 333 for throttling, and the throttling refrigeration The refrigerant becomes a low-temperature and low-pressure two-phase state, and then enters the evaporator 331, and the refrigerant evaporates and absorbs heat in the evaporator 331 through the action of the indoor extension machine to complete the cycle.

In this single cycle, the compressor 336 changes the frequency of the refrigerant flow, the indoor fan 332 changes the frequency of the heat exchange air volume, and the throttle valve changes the refrigerant flow into the evaporator 331, so as to achieve precise cooling of different loads.

It should be noted that, in the embodiment in which the refrigeration system includes multiple row-level air conditioners 32, the cabinets 21 in the computer room 20 include the cabinets 21a with the same load power at each layer, and the cabinets 21 with different load powers at each layer. When installing the refrigeration system, the racks 21a with the same load power at each layer can be corresponding to the row-level air conditioners 32, and the racks 21 with different load powers at each layer can be corresponding to the row-level multi-connected air conditioners 31. The multi-connected air conditioners 31 can accurately adjust the temperature of the cabinets 21 with different load powers on each floor, and can also uniformly adjust the temperature of the cabinets 21 a with the same load power on each floor through the row-level air conditioners 32 . The row-level multi-connected air conditioner 31 has the advantage of simple structure, so that the structure of the refrigeration system can be simplified, thereby achieving the purpose of saving equipment cost.

In addition, it should be noted that the number of row-level multi-connected air conditioners 31 and the number of row-level air conditioners 32 in the refrigeration system in the embodiment of the present application can be configured according to the scale of the equipment room 20 and the number of cabinets 21 in the equipment room 20. Row-level multi-connected air conditioners 31 can be configured for racks 21 with different loads on each floor. Row-level air conditioners 32 and row-level multi-connected air conditioners 31 can be configured for racks 21 with the same load on each floor. The specific configuration relationship can be based on the installation work. It depends on the situation and the allocation of funds, and will not be described in detail here.

In other embodiments of the present application, FIG. 10 is a schematic diagram of a refrigeration cycle process of a row-level multi-connected air conditioner 31 provided by another embodiment of the present application. As shown in FIG. 10 , the indoor unit 33 may include: a compressor 336 , a liquid separator The outdoor unit 34 may include a condenser 341, an outdoor fan 342 and a liquid storage tank 343, the indoor unit 33 and the outdoor The machine 34 is connected by pipelines. The indoor unit 33 includes a plurality of sub-indoor units 338 connected in parallel, each sub-indoor unit 338 includes an evaporator 331 and a throttling device 333, the outlet end of the throttling device 333 is connected to the inlet end of the evaporator 331, and the throttling device 333 For controlling the amount of refrigerant entering the evaporator 331 , each evaporator 331 is opposite to each load in the cabinet 21 to ensure that each evaporator 331 can accurately cool the loads on each layer of the cabinet 21 .

Further, the water-cooling heat dissipation system includes a water-cooling block, a circulating fluid, a water pump, a pipeline and a water tank or a heat exchanger. The water cooling block is a metal block with a water channel inside, and is made of copper or aluminum. The circulating liquid flows in the circulating pipeline by the action of the water pump. The circulating liquid that absorbs the heat loaded by the evaporator 331 and the cabinet 21 will flow away from the water-cooling block, and the new low-temperature circulating liquid will continue to absorb the evaporator. 331 and the heat of the rack 21 load. The water pipe connects the water pump, the water cooling block and the water tank, so that the circulating fluid circulates in a closed channel without leakage, so that the liquid cooling system can work normally.

It should be noted that the water tank is used to store the circulating fluid, and the heat exchanger is a device similar to a heat sink. The circulating fluid transfers heat to the heat sink with a large surface area, and the fan on the heat sink takes away the heat that flows into the air. And the water cooling system has the advantages of low noise and fast heat dissipation.

In the description of the embodiments of the present application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a The indirect connection through an intermediate medium may be the internal communication of the two elements or the interaction relationship between the two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present application according to specific situations.

The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, while It is not necessary to describe a particular order or sequence.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, but not to limit them; It should be understood that: it is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the embodiments of the present application The scope of the technical solutions of each embodiment.

Claims (13)

A data center device is characterized by comprising: a computer room and a refrigeration system, wherein the computer room is provided with at least one cabinet, and the cabinet is provided with a multi-layer load, wherein, The refrigeration system includes at least one row-level multi-stage air conditioner; Each of the row-level multi-connected air conditioners includes a connected indoor unit and an outdoor unit, the indoor unit is located in the equipment room, and the outdoor unit is located outside the equipment room; The indoor unit includes a plurality of sub-indoor units connected in parallel; The indoor units are arranged side by side with the cabinet, and a plurality of the sub-indoor units are respectively opposite to the multi-layer loads in the cabinet, so that the cold air blown by the plurality of sub-indoor units is blown to the respective layers of the load. load. The data center device according to claim 1, wherein each of the sub-indoor units includes an evaporator and a throttling device; The outlet end of the throttling device is connected with the inlet end of the evaporator, and the throttling device is used to control the amount of refrigerant entering the evaporator; Each of the evaporators is opposed to each of the loads within the cabinet. The data center device according to claim 2, wherein each of the sub-indoor units includes an indoor fan, the indoor fan is arranged close to the evaporator, and an air outlet of the indoor fan faces the evaporator. The data center device according to claim 2 or 3, wherein the indoor unit further comprises: a liquid separator, an inlet end of the liquid separator is connected to the outdoor unit, and an outlet of the liquid separator is connected to the outdoor unit. The ends are connected to the throttle devices in each of the sub-indoor units. The data center device according to claim 4, wherein the indoor unit further comprises: a gas collecting pipe, and the outlet end of the evaporator in each of the sub-indoor units is connected to the gas collecting pipe, so The outlet end of the gas collecting pipe is connected to the outdoor unit. The data center device according to claim 5, wherein the indoor unit further comprises: at least one compressor; The outlet end of the gas header is connected to the inlet end of at least one of the compressors; The outlet end of the compressor is connected to the outdoor unit. The data center device according to claim 6, wherein the indoor unit further comprises: at least one drier filter, and the drier filter is arranged on the pipeline between the compressor and the gas collecting pipe. The data center device according to claim 7, wherein the outdoor unit comprises at least one condenser and at least one outdoor fan; the outdoor fan is arranged close to the condenser; The outlet end of the condenser is connected with the liquid separator, and the inlet end of the condenser is connected with the outlet end of the compressor. The data center device according to claim 8, wherein the outdoor unit further comprises a liquid storage tank, the liquid storage tank is on the pipeline between the condenser and the inlet end of the indoor unit, and The outlet end of the at least one condenser is connected to the liquid storage tank. The data center device according to claim 9, wherein the number of the condenser, the compressor and the drying filter is plural; The inlet ends of the plurality of drying filters are all connected with the gas collecting pipe; The outlet ends of the plurality of condensers are all connected with the liquid storage tank. The data center device according to any one of claims 2-10, wherein the throttling device is an electronic expansion valve. The data center device according to any one of claims 1-11, wherein the indoor unit further comprises a control panel; The control panel is electrically connected to a plurality of the sub-indoor units, and the control panel is used to control the outlet air temperature of each of the sub-indoor units. The data center device according to any one of claims 3 to 8, wherein the refrigeration system further comprises a plurality of row-level air conditioners, and the row-level air conditioners are arranged at intervals between the cabinets.

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