CN115334829A - Low-carbon data center and operation method thereof - Google Patents

Abstract

The invention discloses a low-carbon data center and an operation method thereof, comprising a computer room main body, an IT cabinet, an ice storage unit, an indirect evaporative cooling unit, a basic functional area, a battery area and a solar panel curtain wall. There are multiple sets of IT cabinets, the other side is provided with the basic function area and the battery area, the external side of the main body of the computer room is provided with an indirect evaporative cooling unit, the ice storage unit is located on the back side of the main body of the computer room, and the solar energy The solar panel curtain wall is arranged on the sunny side outside the main body of the machine room, and the solar panel is electrically connected to the battery area. The data center can use a variety of different operating modes for heat dissipation according to different use requirements, and can make full use of free cold sources and solar energy resources. Rationalized design of various control strategies such as costs to achieve the low-carbon goal of data centers.

Description

A low-carbon data center and its operating method

technical field

The invention relates to the field of data centers, in particular to a low-carbon data center and its operating method.

Background technique

With the rapid development of social informatization, various industries rely more and more on information systems. At the same time, the energy consumption required by the information industry is also increasing. In recent years, the number of IT equipment and resources has maintained a continuous and rapid growth to meet the needs of emerging technologies and industries such as big data, cloud computing, and 5G. The energy consumption of various IT servers and related industries are putting increasing pressure on resources. stand out. The rapid development of the information industry is inseparable from its supporting base—the strong support of the data center. The investment, operation and maintenance costs of the data center are getting higher and higher, and the energy consumption of the data center accounts for an increasing proportion of the total energy consumption of the society. To build a low-carbon data center, on the one hand, the data center should start from "open source", fully tap the potential of natural energy and do a good job of in-situ storage and conversion of distributed energy; Reasonable adjustment of control strategies to achieve different scenario requirements for data center power saving, water saving, and low cost.

Contents of the invention

The purpose of the present invention is to provide a low-carbon data center and its operation method. The data center makes full use of energy, realizes cold power storage with the help of ice storage devices and batteries, and adopts various control strategies such as power-saving and water-saving operation modes. The rational design of the data center achieves the low-carbon goal of the data center.

The technical solution adopted by the present invention to solve the technical problem is: a low-carbon data center, including the main body of the computer room, the IT cabinet, the ice storage unit, the indirect evaporative cooling unit, the basic functional area, the storage battery area and the solar panel curtain wall, the There are multiple sets of IT cabinets on one side of the main body of the machine room, and the basic functional area and battery area on the other side. The external side of the main body of the machine room is equipped with an indirect evaporative cooling unit, and the ice storage unit is located outside the main body of the machine room on the back of the sun. On the side, the solar panel curtain wall is arranged on the sunny side outside the main body of the machine room, and the solar panel is electrically connected to the battery area.

Further, the ice storage unit includes a blower fan, a box body, a cold storage water tank, an ice making assembly, a compressor, a circulating water pump, a compressor, a circulating water pump, an electronic expansion valve, a four-way reversing valve, a condensing fan, and a condensing coil , the water inlet pipe of the water pump and the ice-making grill. The side of the cabinet corresponding to the IT cabinet is provided with a plurality of air supply fans. Each air supply fan corresponds to an air supply area. One end of the air supply area is connected to the air return bin The upper part of the air supply area is a cold storage area, the upper part of the cold storage area is an ice making area, and an ice making assembly is installed in the ice making area, and one interface of the compressor is connected to the ice making tray through a four-way connection. The other interface of the compressor is connected to the condensing coil through a four-way connection. One side of the condensing coil is provided with a condensing fan, and the bottom side of the cold storage water tank is provided with a water pump inlet pipe. It communicates with the ice making assembly through the circulating water pump and the pipeline.

Further, the ice-making assembly includes a spray baffle, a spray head, a spray water supply pipe, an ice-making coil, an ice tray baffle and an ice-making grill, and the spray water supply pipe is provided with a plurality of spray An ice-making coil is provided under the spray head, and an ice-making grid is provided at the bottom of the ice-making coil, and each space of the ice-making grid is provided with an ice tray that can be opened and closed. bezel.

Further, the ice-making grill includes a refrigerant liquid pipe main pipe, a refrigerant gas pipe main pipe, refrigerant branch pipes and ice-making coil ribs, and the refrigerant branch pipes and ice-making coil ribs are interconnected to form a grill The refrigerant circulates inside the grille, and one end of the refrigerant liquid pipe main pipe and the refrigerant gas pipe main pipe communicates with the grille-shaped refrigerant branch pipes respectively.

Further, a high liquid level float and a low liquid level float are provided at the lower part of one side of the cold storage water tank.

Further, a water tank replenishment pipe is provided on one side of the cold storage water tank.

Further, a bypass ventilation valve is provided at one end of the air supply area, and air channel ribs are respectively provided on both sides of the air supply channel in the air supply area.

An operation method of a low-carbon data center, including power-saving operation mode, during the valley power period at night, the ice storage unit starts the cooling mode, at this time, the cooling capacity required by the server is provided by the indirect evaporative cooling unit; during the peak power period, the ice storage unit The unit starts the cooling mode, and provides the server with cold air at a certain temperature according to the cooling demand of the server; after the cooling of the ice storage unit is completed, the indirect evaporative cooling unit is started, and its power supply uses the electric energy stored in the battery first, and switches to the city after the battery is fully discharged. Electricity or uninterruptible power supply; the cooling priority of the indirect evaporative cooling unit starts the dry mode, the indoor and outdoor fans of the unit are turned on, and the heat exchange between indoor and outdoor air is realized through the heat exchange core; when the dry mode cannot meet the cooling demand, the unit starts the wet film Mode operation, that is, the outdoor side spray pump is turned on and sprays to the heat exchange core, so as to strengthen the heat exchange from the outdoor side to the indoor side; when the wet film type cannot meet the cooling demand, the unit starts the mixed mode operation, that is, keeps the water pump on When the compressor is turned on at the same time, the indoor airflow is cooled when it passes through the evaporator, and the heat from the outdoor side is dissipated to the external environment through the condenser.

A method for operating a low-carbon data center, including a water-saving operation mode, the water-saving operation mode including a water-saving and power-saving mode, a water-free power-saving mode and a non-power-saving mode,

The water-saving and power-saving mode is suitable for application scenarios where water resources are relatively scarce or water prices are high. The specific control steps are: enable solar panels and supply power to the battery, and use the battery to supply power to the indirect evaporative cooling unit; the cooling priority starts the indirect evaporation Cooling unit, the unit starts the dry mode first, the indoor and outdoor fans of the unit are turned on, and the heat exchange between indoor and outdoor air is realized through the heat exchange core; when the dry mode cannot meet the cooling demand, the unit starts the compressor mode, that is, the compressor is turned on, and the indoor When the side airflow passes through the evaporator, it is cooled down, and the heat from the outdoor side is dissipated to the external environment through the condenser; when the compressor mode cannot meet the cooling demand, keep the indirect evaporative cooling unit running and start the ice storage unit to run the cooling mode, which together is the machine room Provide the required cold air; when the cooling capacity is still insufficient and the temperature rise of the computer room is too high, keep the ice storage unit running, the indirect evaporative cooling unit starts the mixed mode, and the compressor system and the spray system are turned on at the same time to provide cooling for the data center;

The water-free power-saving mode is suitable for the application scenarios where water resources are very scarce, water prices are very high or the water is cut off in the park. The specific control steps are: indirect evaporative cooling units, whose power supply uses the electric energy stored in the battery first, and switches after the battery is fully discharged. Supply power to the mains or uninterruptible power supply; the cooling priority of the indirect evaporative cooling unit starts the dry mode, the indoor and outdoor fans of the unit are turned on, and the heat exchange between indoor and outdoor air is realized through the heat exchange core; when the dry mode cannot meet the cooling demand, the unit starts Compressor mode operation, that is, the compressor is turned on, the indoor airflow is cooled when it passes through the evaporator, and the heat from the outdoor side is dissipated to the outside environment through the condenser; the sprinkler system and the ice storage unit do not start to run due to the dissipation of water resources ;

The non-power-saving mode is applicable to the scenario of power redundancy or extremely low electricity price, as well as the scenario of ice storage unit failure or battery unit failure, which is specifically manifested as disabling the ice storage unit or disabling the battery. When the ice storage unit is disabled, the specific control steps are as follows: for the indirect evaporative cooling unit, the power supply of the indirect evaporative cooling unit first uses the electric energy stored in the battery, and after the battery is fully discharged, it is switched to the mains or uninterruptible power supply; the cooling of the indirect evaporative cooling unit starts first In dry mode, the indoor and outdoor fans of the unit are turned on, and the heat exchange between indoor and outdoor air is realized through the heat exchange core; when the dry mode cannot meet the cooling demand, the unit starts to operate in compressor mode, that is, the compressor is turned on, and the indoor airflow is exhausted when it passes through the evaporator. To cool down, the heat outside the outdoor is dissipated to the external environment through the condenser; when the compressor mode cannot meet the cooling demand, the indirect evaporative cooling unit starts the mixed mode, and the compressor system and the spray system are turned on at the same time to provide cooling for the data center. When the battery is disabled, the specific control strategy is as follows: start the indirect evaporative cooling unit, the unit is given priority to start the dry mode, the indoor and outdoor fans of the unit are turned on, and the heat exchange between indoor and outdoor air is realized through the heat exchange core; when the dry mode cannot meet the cooling demand, The unit starts to operate in compressor mode, that is, the compressor is turned on, the indoor airflow is cooled when it passes through the evaporator, and the heat from the outdoor side is dissipated to the external environment through the condenser; when the compressor mode cannot meet the cooling demand, the indirect evaporative cooling unit is kept running And start the ice storage unit to run in the cooling mode to jointly provide the required cold air for the computer room; when the cooling capacity is still insufficient and the temperature rise in the computer room is too high, keep the ice storage unit running, and the indirect evaporative cooling unit starts the mixed mode, the compressor system and spray The shower system is turned on at the same time to provide cooling for the data center.

Beneficial effects of the present invention:

The data center of the present invention can adopt a variety of different operating modes to dissipate heat according to different usage requirements, can make full use of free cold sources and solar energy resources, realize cold power storage by means of ice cold storage devices and batteries, and save electricity and water The rational design of various control strategies such as low cost and low cost achieves the low-carbon goal of the data center.

Description of drawings

Fig. 1 is a schematic diagram of the layout structure of the data center of the present invention;

Figure 2 is a schematic diagram of the structure and principle of the ice storage unit;

Figure 3 is a schematic diagram of the side structure of the ice storage unit;

Fig. 4 is a schematic structural diagram of the ice-making grill.

In the picture:

a IT cabinet, b ice storage unit, c indirect evaporative cooling unit, d basic function area, e battery area, f solar panel curtain wall,

1-Blower fan, 2-Container box, 3-Cold storage water tank, 4-High liquid level float, 5-Low liquid level float, 6-Spray baffle, 7-Spray head, 8-Spray water supply pipe , 9-Ice-making coil, 10-Ice tray baffle, 11-Compressor, 12-Circulating water pump, 13-Electronic expansion valve, 14-Four-way reversing valve, 15-Condensing fan, 16-Condensing coil, 17-Water tank replenishment pipe, 18-Liquid level baffle, 19-Water pump inlet pipe, 20-Return air bin, 21-Ice making area, 22-Cool storage area, 23-Air supply area, 24-Air duct rib, 25 -refrigerant liquid pipe main pipe, 26-refrigerant air pipe main pipe, 27-refrigerant branch pipe, 28-ice-making coil rib, 29-bypass ventilation valve.

Detailed ways

A low-carbon data center and its operating method of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that components illustrated in the figures are not necessarily drawn to scale. The present invention omits descriptions of well-known components and well-known technologies in order to avoid unnecessarily limiting the present invention.

As shown in Figures 1 to 4, a low-carbon data center of the present invention includes a main body of a computer room, an IT cabinet a, an ice storage unit b, an indirect evaporative cooling unit c, a basic functional area d, a storage battery area e and solar panels Curtain wall f, multiple groups of IT cabinets are arranged on one side of the main body of the machine room, basic functional areas and storage battery areas are set on the other side, an indirect evaporative cooling unit is installed on the outer side of the main body of the machine room, and the ice storage unit On the back side of the main body of the machine room, the solar panel curtain wall is set on the sunny side outside the main body of the machine room, so that the solar panels can fully absorb energy, and the energy absorbed by the solar panels is converted into electrical energy for the use of electricity in the machine room. The solar panels and The battery area is electrically connected.

The ice cold storage unit includes an air blower 1, a box body 2, a cold storage water tank 3, an ice making assembly, a compressor 11, a circulating water pump 12, a compressor 11, a circulating water pump 12, an electronic expansion valve 13, and a four-way reversing valve 14 , condensing fan 15, condensing coil 16, water tank replenishment pipe 17, water pump inlet pipe 19 and ice-making grille, the side of the cabinet corresponding to the IT cabinet is provided with a plurality of air supply fans, and each air supply fan corresponds to one Air supply area, one end of the air supply area communicates with the air return bin, the upper part of the air supply area is a cold storage area, the upper part of the cold storage area is an ice making area, and an ice making assembly is arranged in the ice making area , one interface of the compressor is connected to the ice-making coil through a four-way connection, and the other interface of the compressor is connected to the condensation coil through a four-way connection. One side of the condensation coil is provided with a condensing fan, and the cold storage water tank A water pump inlet pipe is provided on the bottom side of the water pump, and the water pump inlet pipe communicates with the ice making assembly through the circulating water pump and the pipeline. The lower part of one side of the cold storage water tank is provided with a high liquid level float 4 and the lower liquid level float 5, and the upper part of one side of the cold storage water tank is provided with a water replenishment pipe through which water can be replenished in time in the cold storage water tank. The electronic expansion valve 13 is arranged on the condensing coil.

The ice-making assembly includes a spray baffle 6, a spray head 7, a spray water supply pipe 8, an ice-making coil 9, an ice tray baffle 10 and an ice-making grid, and the spray water supply pipe is provided with multiple A shower head 7, the bottom of the shower head is provided with an ice-making coil 9, the bottom of the ice-making coil 9 is provided with an ice-making grid, and each space of the ice-making grid is respectively provided with Openable and closable ice tray baffle 10, the bottom of the ice tray baffle is provided with electronically controlled magnetic suction parts, the electronically controlled magnetic suction parts are attracted during ice making, and the ice tray baffle is in a horizontal position; after ice making is completed, the magnetic suction parts Without suction, the ice tray baffle is in a vertical position, making the ice made to fall.

As shown in Figure 4, the ice-making grill includes a refrigerant liquid pipe main pipe 25, a refrigerant air pipe main pipe 26, a refrigerant branch pipe 27 and an ice-making coil rib 28, and the refrigerant branch pipe 27 is connected to the ice making The coil ribs 28 are connected to each other in a grid shape, and the refrigerant circulates inside the grid, and one end of the refrigerant liquid pipe main pipe 25 and the refrigerant air pipe main pipe 26 communicates with the grid-shaped refrigerant branch pipes respectively.

The ice storage unit has two operating modes: charging mode and cooling mode. During the valley electricity at night, the unit starts to charge the cold state, and the ice-making coil 9 is in the ice-making state through the four-way reversing valve 14. Multiple ice trays. Before the ice making starts, first detect the water level of the cold storage water tank 3, if the low float falls at this time, then open the front water inlet valve and fill the water tank with water through the water tank filling pipe 17, after the high float floats, delay for a certain period of time before stopping water injection. After the water level is satisfied, the unit starts to make ice. The specific performance is that the compressor starts to refrigerate, the condensing fan starts to exchange heat, the circulating water pump starts to run under the control of the program, and then stops running after a certain period of continuous atomization and spraying water through the spray head. Wait for a period of time The water in the ice-making grill has completely turned into ice cubes. At this time, the four-way reversing valve changes the direction so that the ice-making coil is in the state of heating and melting ice. After waiting for a certain period of time, a gap has formed between the ice cubes and the coil. At this time, the ice tray baffle plate 10 rotates to a vertical state, and the ice cubes fall and are stored in the cold storage box. The circulating water pump 12 starts spraying water again, and the four-way reversing valve 14 turns to make the ice-making coil be in the ice-making state, and the above-mentioned process is repeated. When the preset ice-making time is reached, the unit will automatically stop ice-making. During peak power during the day, the unit starts to cool down, the air supply fan 1 starts to ventilate, the return air enters the unit from the return air chamber 20, and is cooled by the densely arranged ribs when passing through the cold storage area, and is sent to the machine room for supply by the air supply fan. cold. In addition, a temperature sensor is installed at the outlet of the air supply fan. When the temperature of the air supply is low, the bypass ventilation valve 29 is slowly opened, and part of the return air does not pass through the cold storage area, and is mixed with the cooled air and then sent to the machine room. The opening of the bypass ventilation valve is controlled by the mixed supply air temperature. When the supply air temperature is low, the bypass ventilation valve will gradually open until the supply air temperature meets the control requirements. Otherwise, the bypass ventilation valve will gradually decrease to the supply air temperature. Meet control requirements.

During the ice making period of the ice storage unit, the controller always detects the liquid level of the water tank, and promptly controls the front water inlet valve to open the water tank to replenish water after the low float falls to avoid pumping the air seal; the high and low liquid level floats can also be replaced by liquid The level rod sensor realizes the liquid level detection and is linked with the water inlet of the unit through programmed control; the liquid level baffle protects the liquid level float or the liquid level sensor from being hit by ice cubes to cause abnormal measurement, and the bottom opening of the liquid level baffle realizes communication with the water tank , to ensure accurate liquid level detection. There is also a filter on the water inlet pipe of the circulating water pump to filter impurities in the water tank and prolong the service life of the water pump; a conductivity sensor is also installed on the water inlet pipe of the circulating water pump. The water in the empty water tank is stored and reintroduced through the water inlet pipe, so as to realize the water change of the unit.

The indirect evaporative cooling unit is designed on the end of the machine room, and has four operating modes: dry mode, wet mode, compressor mode, and mixed mode. Dry mode is suitable for scenes with low outdoor temperature. When operating in this mode, the indoor and outdoor fans of the unit are turned on, and the heat exchange between indoor and outdoor air is realized through the heat exchange core; when the dry mode cannot meet the cooling demand, the unit starts wet film operation , that is, the outdoor side spray pump is turned on and sprays to the heat exchange core, so as to strengthen the heat exchange from the outdoor side to the indoor side; when the dry mode cannot meet the cooling demand, the compressor mode can also be turned on, the compressor is turned on, and the indoor side The airflow is cooled when it passes through the evaporator, and the heat outside the outdoor is dissipated to the external environment through the condenser; when the wet film or compressor mode cannot meet the cooling demand, the unit starts the mixed mode operation, that is, the compressor and the spray pump are turned on at the same time , the indirect evaporative cooling unit achieves maximum cooling output.

The solar panel f curtain wall is installed on the facade of the low-carbon data center on the sunny side. It can be installed on a tilting bracket or vertically on the wall. Its working mode is to convert solar energy into electrical energy and store it when there is light during the day In the battery, after the battery is fully charged, the battery discharges to supply energy for the indirect evaporative cooling unit.

The storage battery is installed in the storage battery room of the data center, and has two modes of charging and discharging. Start the charging mode when the solar panel is working during the day to convert solar energy into electrical energy; after the solar panel finishes charging, the battery turns on the discharging mode to supply energy for the indirect evaporative cooling unit.

An operation method of a low-carbon data center includes a power-saving operation mode and a water-saving operation mode. When the power-saving operation mode is adopted, the low-carbon data center will give priority to the full use of free natural energy on the one hand, and on the other hand, give priority to energy-saving cooling methods from the control strategy. During the valley power period at night, the ice storage unit starts the cooling mode. At this time, the cooling capacity required by the server is provided by the indirect evaporative cooling unit. During the peak power period, the ice storage unit starts the cooling mode, and provides cold air at a certain temperature for the server according to the cooling demand of the server; after the cooling of the ice storage unit is completed, the indirect evaporative cooling unit is started, and its power supply priority uses the electric energy stored in the battery. Switch to mains power or uninterruptible power supply after full discharge; the cooling priority of the indirect evaporative cooling unit starts the dry mode, the indoor and outdoor fans of the unit are turned on, and the heat exchange between indoor and outdoor air is realized through the heat exchange core; when the dry mode cannot meet the cooling demand , the unit starts wet-film operation, that is, the outdoor side spray pump is turned on and sprays to the heat exchange core, so as to strengthen the heat exchange from the outdoor side to the indoor side; when the wet-film type cannot meet the cooling demand, the unit starts the hybrid mode Running, that is, keeping the water pump on and the compressor on at the same time, the indoor airflow is cooled when it passes through the evaporator, and the heat outside the outdoor is dissipated to the external environment through the condenser.

The water-saving operation mode can be further divided into a water-saving and power-saving mode, a water-free and power-saving mode, and a non-power-saving mode. The water-saving and power-saving mode is suitable for application scenarios where water resources are relatively scarce or water prices are high. The specific control steps are: enable solar panels and supply power to the battery, and use the battery to supply power to the indirect evaporative cooling unit; the cooling priority starts the indirect evaporation Cooling unit, the unit starts the dry mode first, the indoor and outdoor fans of the unit are turned on, and the heat exchange between indoor and outdoor air is realized through the heat exchange core; when the dry mode cannot meet the cooling demand, the unit starts the compressor mode, that is, the compressor is turned on, and the indoor When the side airflow passes through the evaporator, it is cooled down, and the heat from the outdoor side is dissipated to the external environment through the condenser; when the compressor mode cannot meet the cooling demand, keep the indirect evaporative cooling unit running and start the ice storage unit to run the cooling mode, which together is the machine room Provide the required cold air; when the cooling capacity is still insufficient and the temperature rise of the computer room is too high, keep the ice storage unit running, the indirect evaporative cooling unit starts the mixed mode, and the compressor system and the sprinkler system are turned on at the same time to provide cooling for the data center.

The water-free power-saving mode is suitable for the application scenarios where water resources are very scarce, water prices are very high or the water is cut off in the park. The specific control steps are: indirect evaporative cooling units, whose power supply uses the electric energy stored in the battery first, and switches after the battery is fully discharged. Supply power to the mains or uninterruptible power supply; the cooling priority of the indirect evaporative cooling unit starts the dry mode, the indoor and outdoor fans of the unit are turned on, and the heat exchange between indoor and outdoor air is realized through the heat exchange core; when the dry mode cannot meet the cooling demand, the unit starts Compressor mode operation, that is, the compressor is turned on, the indoor airflow is cooled when it passes through the evaporator, and the heat from the outdoor side is dissipated to the outside environment through the condenser; the sprinkler system and the ice storage unit do not start to run due to the dissipation of water resources .

The non-power-saving mode is applicable to the scenario of power redundancy or extremely low electricity price, as well as the scenario of ice storage unit failure or battery unit failure, which is specifically manifested as disabling the ice storage unit or disabling the battery. When the ice storage unit is disabled, the specific control steps are as follows: for the indirect evaporative cooling unit, the power supply of the indirect evaporative cooling unit first uses the electric energy stored in the battery, and after the battery is fully discharged, it is switched to the mains or uninterruptible power supply; the cooling of the indirect evaporative cooling unit starts first In dry mode, the indoor and outdoor fans of the unit are turned on, and the heat exchange between indoor and outdoor air is realized through the heat exchange core; when the dry mode cannot meet the cooling demand, the unit starts to operate in compressor mode, that is, the compressor is turned on, and the indoor airflow is exhausted when it passes through the evaporator. To cool down, the heat outside the outdoor is dissipated to the external environment through the condenser; when the compressor mode cannot meet the cooling demand, the indirect evaporative cooling unit starts the mixed mode, and the compressor system and the spray system are turned on at the same time to provide cooling for the data center. When the battery is disabled, the specific control strategy is as follows: start the indirect evaporative cooling unit, the unit is given priority to start the dry mode, the indoor and outdoor fans of the unit are turned on, and the heat exchange between indoor and outdoor air is realized through the heat exchange core; when the dry mode cannot meet the cooling demand, The unit starts to operate in compressor mode, that is, the compressor is turned on, the indoor airflow is cooled when it passes through the evaporator, and the heat from the outdoor side is dissipated to the external environment through the condenser; when the compressor mode cannot meet the cooling demand, the indirect evaporative cooling unit is kept running And start the ice storage unit to run in the cooling mode to jointly provide the required cold air for the computer room; when the cooling capacity is still insufficient and the temperature rise in the computer room is too high, keep the ice storage unit running, and the indirect evaporative cooling unit starts the mixed mode, the compressor system and spray The shower system is turned on at the same time to provide cooling for the data center.

The data center can also adopt a low-cost operation method. The low-carbon data center will monitor the electricity and water consumption of the data center at this time in real time, calculate the total operating cost under the current operating state according to the local electricity price and water price, and use AI to intelligently The control logic of each subsystem such as ice storage unit and indirect evaporative cooling unit is tuned in real time, and the operating status of compressors, fans, water pumps and other components is continuously optimized, so that the low-carbon data center can achieve the lowest operating costs.

The data center of the present invention can adopt a variety of different operating modes to dissipate heat according to different usage requirements, can make full use of free cold sources and solar energy resources, realize cold power storage by means of ice cold storage devices and batteries, and save electricity/water Rationalized design of various control strategies such as low cost and low cost to achieve the low-carbon goal of the data center.

The above is just to illustrate some principles of the present invention. This description is not intended to limit the present invention to the specific structure and scope of application shown. Therefore, all corresponding modifications and equivalents that may be used are Belong to the scope of the patent applied for by the present invention.

Except for the technical features described in the description, the rest of the technical features are known to those skilled in the art.

Claims (9)

1. The utility model provides a low carbon data center, characterized by, includes computer lab main part, IT rack, ice cold-storage unit, indirect evaporative cooling unit, basic function district, battery district and solar cell panel curtain, the inside one side of computer lab main part is equipped with multiunit IT rack, and the opposite side is equipped with basic function district and battery district, the outside one side of computer lab main part is equipped with indirect evaporative cooling unit, the outside sunny side of computer lab main part is located to ice cold-storage unit, the outside sunny side that faces of computer lab main part, solar cell panel and battery district electric connection are located to the solar cell panel curtain.

2. The low carbon data center of claim 1, wherein the ice storage unit comprises an air supply fan, a box, a storage water tank, an ice making assembly, a compressor, a circulating water pump, an electronic expansion valve, a four-way reversing valve, a condensing fan, a condensing coil, a water pump inlet pipe and an ice making grid, wherein a plurality of air supply fans are arranged on one side of the box corresponding to the IT cabinet, each air supply fan corresponds to one air supply area, one end of each air supply area is communicated with the return air bin, the upper portion of each air supply area is a storage area, the upper portion of each storage area is an ice making area, an ice making assembly is arranged in each ice making area, one way interface of the compressor is connected with the ice making coil pipe through a four-way joint, the other way interface of the compressor is connected with the condensing coil pipe through a four-way joint, one side of the condensing coil is provided with the condensing fan, one side of the bottom of the storage water tank is provided with the water pump inlet pipe, and the water pump inlet pipe is communicated with the ice making assembly through the circulating water pump and a pipeline.

3. The low carbon data center of claim 2, wherein the ice making assembly comprises a spray baffle, spray headers, a spray water supply pipe, an ice making coil pipe, an ice grid baffle and an ice making grid, the spray water supply pipe is provided with a plurality of spray headers, the ice making coil pipe is arranged below the spray headers, the ice making grid is arranged at the bottom of the ice making coil pipe, and each blank of the ice making grid is provided with the openable ice grid baffle.

4. The low carbon data center of claim 3, wherein the ice-making grid comprises a refrigerant liquid pipe header pipe, a refrigerant gas pipe header pipe, refrigerant branch pipes and ice-making coil rib plates, the refrigerant branch pipes and the ice-making coil rib plates are connected with each other in a grid shape, the refrigerant circulates in the grid, and one end of the refrigerant liquid pipe header pipe and one end of the refrigerant gas pipe header pipe are respectively communicated with the refrigerant branch pipes in the grid shape.

5. The low carbon data center of claim 2, wherein the cold storage water tank is provided with a high liquid level float and a low liquid level float at the lower part of one side.

6. The low carbon data center of claim 2, wherein a water tank water supply pipe is arranged at the upper part of one side of the cold storage water tank.

7. The low carbon data center of claim 2, wherein a bypass air valve is disposed at one end of the air supply area, and air duct ribs are disposed on two sides of an air supply channel of the air supply area.

8. The operation method of the low carbon data center according to any one of claims 1 to 7, comprising a power-saving operation mode, a night off-peak electricity stage, and a cold charging mode started by the ice storage unit, wherein the cooling capacity required by the server is provided by the indirect evaporative cooling unit; in the peak power stage, the ice storage unit starts a cold discharge mode and provides cold air with a certain temperature for the server according to the refrigeration requirement of the server; after the ice-carrying cold storage unit finishes cooling, the indirect evaporative cooling unit is started, the power supply of the indirect evaporative cooling unit preferentially utilizes the electric energy stored in the storage battery, and the storage battery is switched to the commercial power or the uninterrupted power supply for power supply after being completely discharged; the dry mode is started preferentially for cooling of the indirect evaporative cooling unit, the indoor and outdoor fans of the unit are started, and heat exchange of indoor and outdoor air is realized through the heat exchange core; when the dry mode can not meet the refrigeration requirement, the unit starts the wet film type operation, namely the outdoor side spray water pump is started and sprays to the heat exchange core, so as to strengthen the heat exchange of the outdoor side to the indoor side; when the wet film type can not meet the refrigeration requirement, the unit starts a mixed mode operation, namely, the compressor is started under the condition that the water pump is started, the indoor side air flow is cooled when passing through the evaporator, and the outdoor side heat is dissipated to the external environment through the condenser.

9. The operation method of the low-carbon data center according to any one of claims 1 to 7, comprising a water-saving operation mode, wherein the water-saving operation mode comprises a water-saving and electricity-saving mode, a no-water and electricity-saving mode and a non-electricity-saving mode,

the method is suitable for application scenes with relatively deficient water resources or higher water price in the water-saving and electricity-saving mode, and comprises the following specific control steps of: starting a solar panel and supplying power to a storage battery, and supplying power to the indirect evaporative cooling unit through the storage battery; the indirect evaporative cooling unit is started by priority for cooling, the unit is started by priority for a dry mode, the indoor and outdoor fans of the unit are started, and heat exchange of indoor and outdoor air is realized through the heat exchange core; when the dry mode can not meet the refrigeration requirement, the unit starts the compressor to run in a mode that the compressor is started, the indoor side airflow is cooled when passing through the evaporator, and the outdoor side heat is radiated to the external environment through the condenser; when the compressor mode cannot meet the refrigeration requirement, the indirect evaporative cooling unit is kept running, and the ice storage unit is started to run in a cold discharging mode to provide cold air for the machine room; when the temperature of the machine room is overhigh due to still insufficient refrigerating capacity, the ice cold accumulation unit is kept running, the indirect evaporative cooling unit starts a mixed mode, and the compressor system and the spraying system are simultaneously started to supply cold for the data center;

the method is suitable for application scenes of very short water resources, very high water price or water cut-off in a park in a waterless power-saving mode, and comprises the following specific control steps: the indirect evaporative cooling unit is used for supplying power and preferentially utilizing the electric energy stored in the storage battery, and the storage battery is switched to a commercial power or an uninterruptible power supply for supplying power after being completely discharged; the dry mode is started preferentially for cooling of the indirect evaporative cooling unit, the indoor and outdoor fans of the unit are started, and heat exchange of indoor and outdoor air is realized through the heat exchange core; when the dry mode can not meet the refrigeration requirement, the unit starts the compressor mode to operate, namely the compressor is started, the indoor side airflow is cooled when passing through the evaporator, and the outdoor side heat is emitted to the external environment through the condenser; the spraying system and the ice storage unit are not started to operate in the whole process due to water resource dissipation;

the non-electricity-saving mode is suitable for scenes with power redundancy or extremely low electricity price, and scenes with ice storage unit faults or storage battery unit faults, and is specifically represented by forbidding the ice storage unit or forbidding the storage battery. When the ice cold storage unit is forbidden, the specific control steps are as follows: the indirect evaporative cooling unit is used for supplying power and preferentially utilizing the electric energy stored in the storage battery, and the storage battery is switched to a commercial power or an uninterruptible power supply for supplying power after being completely discharged; the dry mode is started preferentially by the cold supply of the indirect evaporative cooling unit, the indoor and outdoor fans of the unit are started, and the heat exchange of indoor and outdoor air is realized through the heat exchange core; when the dry mode can not meet the refrigeration requirement, the unit starts the compressor to run in a mode that the compressor is started, the indoor side airflow is cooled when passing through the evaporator, and the outdoor side heat is radiated to the external environment through the condenser; when the compressor mode can not meet the refrigeration requirement, the indirect evaporative cooling unit starts the mixed mode, and the compressor system and the spraying system are simultaneously started to supply cold for the data center. When the storage battery is forbidden, the specific control strategy is as follows: starting an indirect evaporative cooling unit, wherein the unit preferentially starts a dry mode, an indoor fan and an outdoor fan of the unit are started, and heat exchange of indoor air and outdoor air is realized through a heat exchange core; when the dry mode can not meet the refrigeration requirement, the unit starts the compressor mode to operate, namely the compressor is started, the indoor side airflow is cooled when passing through the evaporator, and the outdoor side heat is emitted to the external environment through the condenser; when the compressor mode cannot meet the refrigeration requirement, the indirect evaporative cooling unit is kept running, and the ice storage unit is started to run in a cold discharging mode to provide cold air for the machine room; when the refrigerating capacity is still insufficient and the temperature of the machine room is too high, the ice cold accumulation unit is kept running, the indirect evaporative cooling unit starts the mixed mode, and the compressor system and the spraying system are simultaneously started to supply cold for the data center.

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