CN115334829B - Low-carbon data center and operation method thereof - Google Patents
Low-carbon data center and operation method thereof Download PDFInfo
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- CN115334829B CN115334829B CN202210795059.9A CN202210795059A CN115334829B CN 115334829 B CN115334829 B CN 115334829B CN 202210795059 A CN202210795059 A CN 202210795059A CN 115334829 B CN115334829 B CN 115334829B
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- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 122
- 238000001816 cooling Methods 0.000 claims abstract description 82
- 230000005611 electricity Effects 0.000 claims abstract description 17
- 238000011217 control strategy Methods 0.000 claims abstract description 9
- 238000005057 refrigeration Methods 0.000 claims description 35
- 239000003507 refrigerant Substances 0.000 claims description 27
- 239000007921 spray Substances 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 25
- 238000005507 spraying Methods 0.000 claims description 15
- 238000009825 accumulation Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 7
- 230000002950 deficient Effects 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 4
- 238000004146 energy storage Methods 0.000 abstract description 4
- 230000001502 supplementing effect Effects 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20718—Forced ventilation of a gaseous coolant
- H05K7/20745—Forced ventilation of a gaseous coolant within rooms for removing heat from cabinets, e.g. by air conditioning device
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/38—Energy storage means, e.g. batteries, structurally associated with PV modules
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/208—Liquid cooling with phase change
- H05K7/20827—Liquid cooling with phase change within rooms for removing heat from cabinets, e.g. air conditioning devices
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20836—Thermal management, e.g. server temperature control
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Air Conditioning Control Device (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a low-carbon data center and an operation method thereof, the low-carbon data center comprises a machine room main body, an IT cabinet, an ice cold storage unit, an indirect evaporative cooling unit, a basic function area, a storage battery area and a solar panel curtain wall, wherein a plurality of groups of IT cabinets are arranged on one side of the interior of the machine room main body, the basic function area and the storage battery area are arranged on the other side of the interior of the machine room main body, the indirect evaporative cooling unit is arranged on one side of the exterior of the machine room main body, the ice cold storage unit is arranged on the back-to-sun side of the exterior of the machine room main body, and the solar panel curtain wall is arranged on the sun-facing side of the exterior of the machine room main body and is electrically connected with the storage battery area. The data center can adopt a plurality of different operation modes to dissipate heat according to different use requirements, can fully utilize free cold sources and solar energy resources, realizes cold electricity energy storage by means of the ice storage device and the storage battery, and achieves the low-carbon aim of the data center through reasonable design of various control strategies such as electricity saving, water saving, low cost and the like.
Description
Technical Field
The invention relates to the field of data centers, in particular to a low-carbon data center and an operation method thereof.
Background
Along with the rapid development of the social informatization level, the dependence degree of each industry on an information system is higher and higher, and meanwhile, the energy consumption required by the information industry is higher and higher. In recent years, the number of IT devices and resources still keeps continuously and rapidly increasing to meet the requirements of development of emerging technologies and industries such as big data, cloud computing, 5G and the like, and the energy consumption of various IT servers and the pressure of related industries on the resources are increasingly highlighted. The rapid development of the informatization industry is not separated from the support base, namely the powerful support of the data center, the investment and operation cost of the data center is higher and higher, and the energy consumption of the data center is increased in the total social energy consumption. On one hand, the data center needs to fully excavate natural energy potential from 'open source' and make on-site storage, conversion and utilization of distributed energy; on the other hand, from the 'throttling', the power saving, water saving and low cost different scene demands of the data center are realized through reasonable control strategy adjustment.
Disclosure of Invention
The invention aims to provide a low-carbon data center and an operation method thereof, wherein the data center fully utilizes energy, realizes cold and electric energy storage by means of an ice storage device and a storage battery, and achieves the low-carbon aim of the data center through reasonable design of various control strategies such as power-saving and water-saving operation modes.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a low-carbon data center, 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, 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, outside one side of computer lab main part is equipped with indirect evaporative cooling unit, the outside back positive side of computer lab main part is located to the ice cold-storage unit, solar cell panel curtain locates outside to the positive side of computer lab main part, solar cell panel and battery district electric connection.
Further, ice cold-storage unit includes air supply fan, box, cold-storage water tank, ice-making subassembly, compressor, circulating water pump, compressor, electronic expansion valve, four-way reversing valve, condensing fan, condensing coil, water pump inlet tube and ice-making grid, one side that the box corresponds the IT rack is equipped with a plurality of air supply fans, and every air supply fan corresponds an air supply district, the one end and the return air storehouse intercommunication of air supply district, the upper portion of air supply district is the cold-storage district, the upper portion of cold-storage district is the ice-making district, be equipped with the ice-making subassembly in the ice-making district, the interface of one way of compressor links to each other with the ice-making coil through the cross, another interface of compressor links to each other with the condensing coil through the cross, one side of condensing coil is equipped with condensing fan, bottom one side of cold-storage water tank is equipped with the water pump inlet tube, the water pump inlet tube is through circulating water pump and pipeline and ice-making subassembly intercommunication.
Further, the system ice subassembly includes spraying baffle, shower head, sprays delivery pipe, system ice coil pipe, ice grid baffle and system ice grid, be equipped with a plurality of shower heads on the spraying delivery pipe, the below of shower head is equipped with the system ice coil pipe, the bottom of system ice coil pipe is equipped with the system ice grid, every blank of system ice grid is equipped with the ice grid baffle that can open and shut respectively.
Further, the ice making grid comprises a refrigerant liquid pipe main pipe, a refrigerant gas pipe main pipe, a refrigerant branch pipe and an ice making coil pipe rib plate, wherein the refrigerant branch pipe and the ice making coil pipe rib plate are connected into a grid shape, the refrigerant circulates in the grid, and one ends of the refrigerant liquid pipe main pipe and the refrigerant gas pipe main pipe are respectively communicated with the grid-shaped refrigerant branch pipe.
Further, a high liquid level floater and a low liquid level floater are arranged at the lower part of one side of the cold accumulation water tank.
Further, a water tank water supplementing pipe is arranged at the upper part of one side of the cold accumulation water tank.
Further, one end of the air supply area is provided with a side ventilation valve, and two sides of an air supply channel of the air supply area are respectively provided with an air channel rib plate.
The operation method of the low-carbon data center comprises a power-saving operation mode, a night valley electricity stage and a cold storage unit starting a cold filling mode, wherein the refrigerating capacity required by a server is provided by an indirect evaporative cooling unit; in the peak electricity stage, the ice cold storage unit starts a cold discharge mode, and cold air with a certain temperature is provided for the server according to the refrigeration requirement of the server; after the cold storage unit with ice is cooled, 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 uninterruptible power supply for power supply after being completely discharged; the cooling of the indirect evaporative cooling unit is in 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 wet film type operation, namely the outdoor side spray water pump is started and sprays to the heat exchange core, so that the heat exchange from the outdoor side to the indoor side is enhanced; when the wet film type cooling device can not meet the cooling requirement, the unit starts the mixed mode operation, namely, the compressor is started under the condition that the water pump is kept on, indoor side air flow is cooled when passing through the evaporator, and outdoor side heat is emitted to the external environment through the condenser.
A method for operating a low-carbon data center includes a water-saving operation mode including a water-saving power-saving mode, a water-free power-saving mode and a non-power-saving mode,
the method is suitable for application scenes with relatively deficient water resources or higher water prices in a water-saving and power-saving mode, and comprises the following specific control steps: starting a solar panel and supplying power to a storage battery, and supplying power to an indirect evaporative cooling unit through the storage battery; the cooling priority starts an indirect evaporative cooling unit, the unit starts a dry mode preferentially, 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 air flow 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 can not meet the refrigeration requirement, the indirect evaporative cooling unit is kept to operate, and the ice storage unit is started to operate in a cold discharge mode, so that the required cold air is provided for a machine room; when the temperature rise of the machine room is too high due to insufficient refrigerating capacity, the ice storage unit is kept to operate, the indirect evaporative cooling unit starts a mixing mode, and the compressor system and the spraying system are started to supply cold for the data center at the same time;
the method is suitable for application scenes of very deficient water resources, very high water price or water cut-off in parks in a water-free power-saving mode, and comprises the following specific control steps: the indirect evaporative cooling unit is powered by the electric energy stored in the storage battery preferentially, and the storage battery is switched to the mains supply or the uninterruptible power supply for power supply after being completely discharged; the cooling of the indirect evaporative cooling unit is in 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 air flow 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 run in the whole process due to water resource dissipation;
the non-electricity-saving mode is suitable for the scenes of power redundancy or extremely low electricity price and the scenes of ice storage unit faults or storage battery unit faults, and is specifically shown as disabling the ice storage unit or disabling the storage battery. When the ice cold accumulation unit is forbidden, the specific control steps are as follows: the indirect evaporative cooling unit is powered by the electric energy stored in the storage battery preferentially, and the storage battery is switched to the mains supply or the uninterruptible power supply for power supply after being completely discharged; the cooling of the indirect evaporative cooling unit is in 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 air flow 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 can not meet the refrigeration requirement, the indirect evaporative cooling unit starts a mixed mode, and the compressor system and the spraying system are started to supply cold for the data center at the same time. When the storage battery is disabled, the specific control strategy is as follows: an indirect evaporative cooling unit is started, the unit starts a dry mode preferentially, 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 air flow 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 can not meet the refrigeration requirement, the indirect evaporative cooling unit is kept to operate, and the ice storage unit is started to operate in a cold discharge mode, so that the required cold air is provided for a machine room; when the temperature rise of the machine room is too high due to insufficient refrigerating capacity, the ice storage unit is kept to operate, the indirect evaporative cooling unit starts a mixing mode, and the compressor system and the spraying system are started to supply cold for the data center at the same time.
The invention has the beneficial effects that:
the data center can adopt a plurality of different operation modes to dissipate heat according to different use requirements, can fully utilize free cold sources and solar energy resources, realizes cold and electric energy storage by means of the ice storage device and the storage battery, and achieves the low-carbon aim of the data center through reasonable design of various control strategies such as electricity saving, water saving, low cost and the like.
Drawings
FIG. 1 is a schematic diagram of a data center layout structure of the present invention;
FIG. 2 is a schematic diagram of the structural principle of the ice storage unit;
FIG. 3 is a schematic side structural view of an ice thermal storage unit;
fig. 4 is a schematic view of the structure of the ice making grid.
In the figure:
a IT cabinet, b ice cold storage unit, c indirect evaporative cooling unit, d basic function area, e storage battery area, f solar panel curtain wall,
1-air supply blower, 2-container box, 3-cold storage water tank, 4-high liquid level float, 5-low liquid level float, 6-spray baffle, 7-spray header, 8-spray water supply pipe, 9-ice making coil pipe, 10-ice grid baffle, 11-compressor, 12-circulating water pump, 13-electronic expansion valve, 14-four-way reversing valve, 15-condensing blower, 16-condensing coil pipe, 17-water tank water supplementing pipe, 18-liquid level baffle, 19-water pump water inlet pipe, 20-return air bin, 21-ice making area, 22-cold storage area, 23-air supply area, 24-air duct rib plate, 25-refrigerant liquid pipe main pipe, 26-refrigerant air pipe main pipe, 27-refrigerant branch pipe, 28-ice making coil pipe rib plate and 29-bypass air valve.
Detailed Description
The invention relates to a low-carbon data center and an operation method thereof, and more particularly, to a low-carbon data center and an operation method thereof. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and well-known techniques are omitted so as to not unnecessarily obscure the present invention.
As shown in fig. 1 to 4, the low-carbon data center comprises a machine room main body, an IT cabinet a, an ice cold storage unit b, an indirect evaporative cooling unit c, a basic function area d, a storage battery area e and a solar panel curtain wall f, wherein a plurality of groups of IT cabinets are arranged on one side of the interior of the machine room main body, the basic function area and the storage battery area are arranged on the other side of the interior of the machine room main body, the indirect evaporative cooling unit is arranged on one side of the exterior of the machine room main body, the ice cold storage unit is arranged on the back-to-sun side of the exterior of the machine room main body, the solar panel curtain wall is arranged on the outward-to-sun side of the machine room main body, so that the solar panel can fully absorb energy, and the energy is absorbed by the solar panel to be converted into electric energy for electricity use in the machine room, and the solar panel is electrically connected with the storage battery area.
The ice cold-storage unit comprises an air supply fan 1, a box body 2, a cold-storage water tank 3, an ice making assembly, a compressor 11, a circulating water pump 12, an electronic expansion valve 13, a four-way reversing valve 14, a condensing fan 15, a condensing coil 16, a water tank water supplementing pipe 17, a water pump water inlet pipe 19 and an ice making grid, one side of the box body corresponding to an IT cabinet is provided with a plurality of air supply fans, each air supply fan corresponds to an air supply area, one end of each air supply area is communicated with an air return bin, the upper part of each air supply area is a cold storage area, the upper part of the cold storage area is an ice making area, an ice making assembly is arranged in the ice making area, one way of interface of the compressor is connected with the ice making coil through a four-way joint, the other way interface of the compressor is connected with the condensing coil through the four-way joint, one side of the condensing coil is provided with the condensing fan, one side of the cold storage water tank is provided with a water pump water inlet pipe, and one side of the bottom of the cold storage water tank is communicated with the ice making assembly through the circulating water pump and the pipeline. The cold accumulation water tank is characterized in that a high liquid level floater 4 and a low liquid level floater 5 are arranged at the lower part of one side of the cold accumulation water tank, a water tank water supplementing pipe is arranged at the upper part of one side of the cold accumulation water tank, and water can be timely supplemented into the cold accumulation water tank through the water supplementing pipe. The electronic expansion valve 13 is arranged on the condensing coil.
The ice making assembly comprises a spray baffle 6, spray heads 7, a spray water supply pipe 8, an ice making coil pipe 9, an ice grid baffle 10 and an ice making grid, wherein a plurality of spray heads 7 are arranged on the spray water supply pipe, the ice making coil pipe 9 is arranged below the spray heads, the ice making grid is arranged at the bottom of the ice making coil pipe 9, each space of the ice making grid is respectively provided with the ice grid baffle 10 which can be opened and closed, the bottom of the ice grid baffle is provided with an electric control magnetic attraction component, the electric control magnetic attraction component is attracted during ice making, and the ice grid baffle is positioned at a horizontal position; after the ice making is finished, the magnetic attraction component is not attracted, and the ice grid baffle is positioned at the vertical position, so that the made ice falls.
As shown in fig. 4, the ice making grille includes a refrigerant liquid pipe main 25, a refrigerant gas pipe main 26, a refrigerant branch pipe 27 and an ice making coil rib 28, the refrigerant branch pipe 27 and the ice making coil rib 28 are connected to each other in a grille shape, the refrigerant circulates in the grille, and one ends of the refrigerant liquid pipe main 25 and the refrigerant gas pipe main 26 are respectively connected to the grille-shaped refrigerant branch pipe.
The ice cold storage unit has two operation modes of a cold filling mode and a cold releasing mode. During the valley electricity at night, the unit starts a cold charging state, the four-way reversing valve 14 is used for reversing to enable the ice making coil pipe 9 to be in an ice making state, and the ice grid baffle plate is placed in a horizontal position and is tightly pressed with the ice making coil pipe grid to form a plurality of ice grid bins. Before starting ice making, firstly detecting the water level of the cold accumulation water tank 3, if the low float falls at the moment, opening the front water inlet valve and filling water into the water tank through the water tank water supplementing pipe 17, and stopping filling water after a certain time delay after the high float floats. The water level satisfies the back unit start-up system ice, and the concrete manifestation is that the compressor starts refrigeration, and the condensing fan starts heat transfer, and circulating water pump starts the operation under program control, and the operation is suspended after spraying water for a certain length of time through the shower head continuous atomization, waits for the water in the ice-making grid to become the ice-cube completely after a period of time, and four-way reversing valve switching-over makes ice-making coil pipe be in the ice-making state of heating after this moment, waits for a certain length of time after ice-cube and coil pipe have formed one deck thin water film, and ice-cube baffle 10 rotates to vertical state this moment, and the ice-cube falls and stores in the cold-storage case. The circulating water pump 12 is started to spray water again, the four-way reversing valve 14 is turned to enable the ice making coil pipe to be in an ice making state, and the process is repeated. And after the preset ice making time is reached, the unit automatically stops the ice making action. During peak electricity in daytime, the unit starts to be in a cooling state, the air supply fan 1 starts to ventilate, return air enters the unit from the return air bin 20, passes through the cold accumulation area and is cooled by densely arranged rib plates, and is sent to a machine room for cooling through the air supply fan. In addition, a temperature sensor is arranged at the outlet of the air supply fan, when the air supply temperature is low, the bypass air valve 29 is slowly opened, and part of return air does not pass through the cold storage area and is mixed with cooled air and then is sent into a machine room. The opening of the bypass air valve is controlled by the air supply temperature after mixing, when the air supply temperature is lower, the bypass air valve can be gradually opened until the air supply temperature meets the control requirement, otherwise, the bypass air valve can be gradually reduced until the air supply temperature meets the control requirement.
During the ice making process of the ice storage unit, the controller always detects the liquid level state of the water tank, and after the low float falls down, the front water inlet valve is timely controlled to open the water tank to supplement water, so that the water pump is prevented from evacuating air seal; the high and low liquid level floats can be replaced by liquid level rod sensors, so that liquid level detection is realized and water inflow linkage with the unit is realized through programmed control; the liquid level baffle protects the liquid level floater or the liquid level sensor from being impacted by ice cubes to cause abnormal measurement, and the opening at the bottom of the liquid level baffle is communicated with the water tank to ensure accurate liquid level detection. The water inlet pipe of the circulating water pump is also provided with a filter for filtering impurities in the water tank, so that the service life of the water pump is prolonged; the water inlet pipe of the circulating water pump is also provided with a conductivity sensor, when the water quality and the conductivity are detected to be too large, ice making is suspended, the water tank is emptied through the drain pipe to store water, and water is re-fed through the water inlet pipe, so that water exchange of the unit is realized.
The indirect evaporative cooling unit is designed on the end face of a machine room, and four operation modes are provided: dry mode, wet mode, compressor mode, hybrid mode. The dry mode is suitable for a scene with lower outdoor temperature, and when the dry mode is operated, 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 wet film type operation, namely the outdoor side spray water pump is started and sprays to the heat exchange core, so that the heat exchange from the outdoor side to the indoor side is enhanced; when the dry mode can not meet the refrigeration requirement, the compressor mode can be started, the compressor is started, the indoor side air flow is cooled when passing through the evaporator, and the outdoor side heat is emitted to the external environment through the condenser; when the wet film mode or the compressor mode can not meet the refrigeration requirement, the unit starts the mixed mode operation, namely the compressor and the spray water pump are simultaneously started, and the indirect evaporative cooling unit achieves the maximum refrigeration output.
The solar panel f curtain wall is arranged on the outer elevation of the sunward side of the low-carbon data center, can be arranged by an inclined bracket, and can also be arranged by a vertical wall, and the working mode of the solar panel f curtain wall is that solar energy is converted into electric energy and stored in a storage battery when illumination exists in daytime, and the electric energy is discharged by the storage battery to supply energy to an indirect evaporative cooling unit after being full of the electric energy.
The storage batteries are arranged among the storage batteries of the data center and have two modes of charging and discharging. Starting a charging mode when the solar panel works in daytime, and converting solar energy into electric energy; after the solar cell panel is charged, the storage battery starts a discharging mode to supply energy for the indirect evaporative cooling unit.
An operation method of a low-carbon data center comprises a power-saving operation mode and a water-saving operation mode. When the power-saving operation mode is adopted, the low-carbon data center can give priority to the full use of free natural energy on one hand, and can give priority to the electric energy-saving refrigeration mode on the other hand from the control strategy. At night valley electricity stage, the ice cold storage unit starts a cooling mode, and the refrigerating capacity required by the server is provided by the indirect evaporative cooling unit. In the peak electricity stage, the ice cold storage unit starts a cold discharge mode, and cold air with a certain temperature is provided for the server according to the refrigeration requirement of the server; after the cold storage unit with ice is cooled, 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 uninterruptible power supply for power supply after being completely discharged; the cooling of the indirect evaporative cooling unit is in 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 wet film type operation, namely the outdoor side spray water pump is started and sprays to the heat exchange core, so that the heat exchange from the outdoor side to the indoor side is enhanced; when the wet film type cooling device can not meet the cooling requirement, the unit starts the mixed mode operation, namely, the compressor is started under the condition that the water pump is kept on, indoor side air flow is cooled when passing through the evaporator, and outdoor side heat is emitted to the external environment through the condenser.
The water-saving operation mode can be divided into a water-saving power-saving mode, a water-free power-saving mode and a non-power-saving mode. The method is suitable for application scenes with relatively deficient water resources or higher water prices in a water-saving and power-saving mode, and comprises the following specific control steps: starting a solar panel and supplying power to a storage battery, and supplying power to an indirect evaporative cooling unit through the storage battery; the cooling priority starts an indirect evaporative cooling unit, the unit starts a dry mode preferentially, 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 air flow 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 can not meet the refrigeration requirement, the indirect evaporative cooling unit is kept to operate, and the ice storage unit is started to operate in a cold discharge mode, so that the required cold air is provided for a machine room; when the temperature rise of the machine room is too high due to insufficient refrigerating capacity, the ice storage unit is kept to operate, the indirect evaporative cooling unit starts a mixing mode, and the compressor system and the spraying system are started to supply cold for the data center at the same time.
The method is suitable for application scenes of very deficient water resources, very high water price or water cut-off in parks in a water-free power-saving mode, and comprises the following specific control steps: the indirect evaporative cooling unit is powered by the electric energy stored in the storage battery preferentially, and the storage battery is switched to the mains supply or the uninterruptible power supply for power supply after being completely discharged; the cooling of the indirect evaporative cooling unit is in 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 air flow 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 the scenes of power redundancy or extremely low electricity price and the scenes of ice storage unit faults or storage battery unit faults, and is specifically shown as disabling the ice storage unit or disabling the storage battery. When the ice cold accumulation unit is forbidden, the specific control steps are as follows: the indirect evaporative cooling unit is powered by the electric energy stored in the storage battery preferentially, and the storage battery is switched to the mains supply or the uninterruptible power supply for power supply after being completely discharged; the cooling of the indirect evaporative cooling unit is in 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 air flow 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 can not meet the refrigeration requirement, the indirect evaporative cooling unit starts a mixed mode, and the compressor system and the spraying system are started to supply cold for the data center at the same time. When the storage battery is disabled, the specific control strategy is as follows: an indirect evaporative cooling unit is started, the unit starts a dry mode preferentially, 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 air flow 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 can not meet the refrigeration requirement, the indirect evaporative cooling unit is kept to operate, and the ice storage unit is started to operate in a cold discharge mode, so that the required cold air is provided for a machine room; when the temperature rise of the machine room is too high due to insufficient refrigerating capacity, the ice storage unit is kept to operate, the indirect evaporative cooling unit starts a mixing mode, and the compressor system and the spraying system are started to supply cold for the data center at the same time.
The low-carbon data center can also adopt a low-cost operation method, the low-carbon data center can monitor the electricity consumption and the water consumption of the data center in real time, calculate the total operation cost in the current operation state according to the local electricity price and the water price, and carry out real-time optimization on the control logic of all subsystems such as the ice storage unit and the indirect evaporative cooling unit through AI (intelligent input technology), so that the operation states of all components such as a compressor, a fan, a water pump and the like are continuously optimized, and the low-carbon data center realizes the lowest operation cost.
The data center can adopt a plurality of different operation modes to dissipate heat according to different use requirements, can fully utilize free cold sources and solar energy resources, realizes cold and electric energy storage by means of the ice storage device and the storage battery, and achieves the low-carbon aim of the data center through reasonable design of various control strategies such as electricity saving/water saving/low cost and the like.
The foregoing is provided by way of illustration of the principles of the present invention, and is not intended to be limited to the specific constructions and applications illustrated herein, but rather to all modifications and equivalents which may be utilized as fall within the scope of the invention as defined in the claims.
The technical features are known to those skilled in the art except the technical features described in the specification.
Claims (8)
1. The low-carbon data center is characterized by comprising a machine room main body, an IT cabinet, an ice cold storage unit, an indirect evaporative cooling unit, a basic function area, a storage battery area and a solar panel curtain wall, wherein a plurality of groups of IT cabinets are arranged on one side of the interior of the machine room main body, the basic function area and the storage battery area are arranged on the other side of the interior of the machine room main body, the indirect evaporative cooling unit is arranged on one side of the exterior of the machine room main body, the ice cold storage unit is arranged on the back-to-sun side of the exterior of the machine room main body, and the solar panel curtain wall is arranged on the outward-to-sun side of the machine room main body and is electrically connected with the storage battery area; the ice cold-storage unit comprises an air supply fan, a box body, a cold-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 water inlet pipe and an ice-making grid, wherein one side of the box body corresponding to an 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 communicated with a return air 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, the ice-making assembly is arranged in the ice-making area, one way of interface of the compressor is connected with the ice-making coil through the four-way joint, the other way interface of the compressor is connected with the condensing coil through the four-way joint, one side of the condensing coil is provided with the condensing fan, one side of the bottom of the cold-storage water tank is provided with the water pump water inlet pipe, and the water pump water inlet pipe is communicated with the ice-making assembly through the circulating water pump and a pipeline.
2. The low-carbon data center of claim 1, wherein the ice making assembly comprises a spray baffle, a spray header, a spray water supply pipe, an ice making coil pipe, an ice grid baffle and an ice grid, the spray water supply pipe is provided with a plurality of spray headers, the ice making coil pipe is arranged below the spray header, the ice making grid is arranged at the bottom of the ice making coil pipe, and each blank of the ice making grid is respectively provided with the ice grid baffle which can be opened and closed.
3. The low-carbon data center of claim 2, wherein the ice making grid comprises a refrigerant liquid pipe main pipe, a refrigerant gas pipe main pipe, a refrigerant branch pipe and an ice making coil rib plate, the refrigerant branch pipe and the ice making coil rib plate are connected into a grid shape, the refrigerant circulates in the grid, and one ends of the refrigerant liquid pipe main pipe and the refrigerant gas pipe main pipe are respectively communicated with the grid-shaped refrigerant branch pipe.
4. The low-carbon data center according to claim 1, wherein a side lower portion of the cold accumulation water tank is provided with a high-liquid-level float and a low-liquid-level float.
5. The low-carbon data center of claim 1, wherein a water tank water replenishing pipe is arranged at an upper part of one side of the cold storage water tank.
6. The low-carbon data center of claim 1, wherein a side ventilation valve is arranged at one end of the air supply area, and air duct rib plates are respectively arranged at two sides of an air supply channel of the air supply area.
7. The method of any one of claims 1 to 6, comprising a power saving mode of operation, a night valley phase, an ice storage unit starting a cooling mode, wherein the refrigeration capacity required by the server is provided by an indirect evaporative cooling unit; in the peak electricity stage, the ice cold storage unit starts a cold discharge mode, and cold air with a certain temperature is provided for the server according to the refrigeration requirement of the server; after the cold storage unit with ice is cooled, 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 uninterruptible power supply for power supply after being completely discharged; the cooling of the indirect evaporative cooling unit is in 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 wet mode operation, namely the outdoor side spray water pump is started and sprays to the heat exchange core, so that the heat exchange from the outdoor side to the indoor side is enhanced; when the wet mode can not meet the refrigeration requirement, the unit starts the mixed mode operation, namely, the compressor is started under the condition that the water pump is kept on, indoor side air flow is cooled when passing through the evaporator, and outdoor side heat is emitted to the external environment through the condenser.
8. The method of operation of a low-carbon data center of any one of claims 1 to 6, comprising a water-saving mode of operation, the water-saving mode of operation comprising a water-saving power-saving mode, a water-free power-saving mode, and a non-power-saving mode,
the method is suitable for application scenes with relatively deficient water resources or higher water prices in a water-saving and power-saving mode, and comprises the following specific control steps: starting a solar panel and supplying power to a storage battery, and supplying power to an indirect evaporative cooling unit through the storage battery; the cooling priority starts an indirect evaporative cooling unit, the unit starts a dry mode preferentially, 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 air flow 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 can not meet the refrigeration requirement, the indirect evaporative cooling unit is kept to operate, and the ice storage unit is started to operate in a cold discharge mode, so that the required cold air is provided for a machine room; when the temperature rise of the machine room is too high due to insufficient refrigerating capacity, the ice storage unit is kept to operate, the indirect evaporative cooling unit starts a mixing mode, and the compressor system and the spraying system are started to supply cold for the data center at the same time;
the method is suitable for application scenes of very deficient water resources, very high water price or water cut-off in parks in a water-free power-saving mode, and comprises the following specific control steps: the indirect evaporative cooling unit is powered by the electric energy stored in the storage battery preferentially, and the storage battery is switched to the mains supply or the uninterruptible power supply for power supply after being completely discharged; the cooling of the indirect evaporative cooling unit is in 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 air flow 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 run in the whole process due to water resource dissipation;
the non-electricity-saving mode is suitable for the scenes of power redundancy or extremely low electricity price and the scenes of ice storage unit faults or storage battery unit faults, and is specifically represented by disabling the ice storage unit or disabling the storage battery; when the ice cold accumulation unit is forbidden, the specific control steps are as follows: the indirect evaporative cooling unit is powered by the electric energy stored in the storage battery preferentially, and the storage battery is switched to the mains supply or the uninterruptible power supply for power supply after being completely discharged; the cooling of the indirect evaporative cooling unit is in 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 air flow 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 can not meet the refrigeration requirement, the indirect evaporative cooling unit starts a mixed mode, and the compressor system and the spraying system are started to supply cold for the data center at the same time; when the storage battery is disabled, the specific control strategy is as follows: an indirect evaporative cooling unit is started, the unit starts a dry mode preferentially, 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 air flow 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 can not meet the refrigeration requirement, the indirect evaporative cooling unit is kept to operate, and the ice storage unit is started to operate in a cold discharge mode, so that the required cold air is provided for a machine room; when the temperature rise of the machine room is too high due to insufficient refrigerating capacity, the ice storage unit is kept to operate, the indirect evaporative cooling unit starts a mixing mode, and the compressor system and the spraying system are started to supply cold for the data center at the same time.
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