CN111578432B - Data center, and refrigeration control method and device of data center - Google Patents

Data center, and refrigeration control method and device of data center Download PDF

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Publication number
CN111578432B
CN111578432B CN201910122960.8A CN201910122960A CN111578432B CN 111578432 B CN111578432 B CN 111578432B CN 201910122960 A CN201910122960 A CN 201910122960A CN 111578432 B CN111578432 B CN 111578432B
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China
Prior art keywords
air
exhaust
volume
data center
outdoor
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CN201910122960.8A
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CN111578432A (en
Inventor
任垚宇
张春风
张路路
王舜
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Vertiv Tech Co Ltd
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Vertiv Tech Co Ltd
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Publication of CN111578432A publication Critical patent/CN111578432A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/04Ventilation with ducting systems also by double walls; with natural circulation
    • F24F7/06Ventilation with ducting systems also by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08Ventilation with ducting systems also by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/65Electronic processing for selecting an operating mode
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28Arrangement or mounting of filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0035Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/20718Forced ventilation of a gaseous coolant
    • H05K7/20745Forced ventilation of a gaseous coolant within rooms for removing heat from cabinets, e.g. by air conditioning device
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/20836Thermal management, e.g. server temperature control
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention discloses a data center and a refrigeration control method and device of the data center, which are used for ensuring that the air inlet quantity of cold air on the outdoor side of an air conditioner can meet the refrigeration requirement of the data center. The data center comprises an air inlet box, an air exhaust box, an air feeder, an air exhaust fan, an air inlet channel and an air exhaust channel; the air inlet box and the air exhaust box are respectively communicated with the outside; the air feeder and the exhaust fan are respectively arranged in the air inlet box and the exhaust box; the air inlet channel is respectively communicated with the air inlet box and an outdoor air inlet window of the air conditioner, and the air exhaust channel is respectively communicated with the air exhaust box and an outdoor air outlet window of the air conditioner; the data center also comprises a controller, which is used for obtaining the current air exhaust volume of each air conditioner, determining the current total air exhaust volume of all the air conditioners in the data center according to the current air exhaust volume of each air conditioner, determining the required air volume of the data center according to the current total air exhaust volume of all the air conditioners in the data center, and adjusting the rotating speeds of the air blower and the exhaust fan according to the required air volume of the data center.

Description

Data center, and refrigeration control method and device of data center
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to a data center and a refrigeration control method and device of the data center.
Background
With the development of technologies such as internet and cloud computing, the number of high-density cabinets applied to a data center (commonly called a machine room) is gradually increased, the integration level of equipment is higher and higher, the power consumption is higher and higher, and the requirement for an air conditioner is also more and more large. In order to reduce the energy consumption of a data center, some air conditioners in the prior art adopt a refrigeration scheme that a compressor directly expands for refrigeration and is matched with direct or indirect evaporation for refrigeration, so that a natural cold source is utilized to the maximum extent to achieve an energy-saving effect.
In the indirect evaporative refrigeration, cold air at the outdoor side is used as a cold source to cool high-temperature return air in the data center, so that two air flows from the inside of the data center and the outside of the data center need to be introduced in the working process of the air conditioner. When the air conditioner is arranged in the data center, the air conditioner in the data center can encounter large air resistance when cold air outside the air conditioner enters, so that the air inlet volume of the air conditioner is difficult to meet the refrigeration requirement of the machine room.
Disclosure of Invention
The embodiment of the invention aims to provide a data center and a refrigeration control method and device of the data center, so as to ensure that the air inlet amount of cold air at the outdoor side of an air conditioner can meet the refrigeration requirement of the data center.
In a first aspect, the data center provided in the embodiments of the present invention includes a plurality of cabinets and at least one air conditioner, where the air conditioner includes a casing, and an air-air heat exchanger, an outdoor fan and an indoor fan that are disposed in the casing, and the air-air heat exchanger includes an outdoor air inlet side, an outdoor air outlet side, an indoor air inlet side and an indoor air outlet side; the shell is provided with an outdoor air inlet window, an outdoor air outlet window, an indoor air inlet window and an indoor air outlet window which are respectively communicated with the outdoor air inlet side, the outdoor air outlet side, the indoor air inlet side and the indoor air outlet side; the outdoor side fan and the indoor side fan are respectively arranged at an outdoor side air outlet window and an indoor side air outlet window; a cold air channel is formed in the front side of each cabinet, a hot air channel is formed in the rear side of each cabinet, the cold air channels are communicated with indoor air outlet windows of the air conditioners, and the hot air channels are communicated with indoor air inlet windows of the air conditioners; further comprising:
the air inlet box, the air exhaust box, the air feeder, the exhaust fan, the air inlet channel and the air exhaust channel; the air inlet box and the air exhaust box are respectively communicated with the outside; the air feeder and the exhaust fan are respectively arranged in the air inlet box and the exhaust box; the air inlet channel is respectively communicated with the air inlet box and an outdoor air inlet window of the air conditioner, and the air exhaust channel is respectively communicated with the air exhaust box and an outdoor air outlet window of the air conditioner;
the controller is respectively connected with the air feeder, the exhaust fan and the processor of at least one air conditioner and is used for:
acquiring the current air exhaust volume of each air conditioner;
determining the current total air discharge quantity of all the air conditioners in the data center according to the current air discharge quantity of each air conditioner;
and determining the required air volume of the data center according to the current total air volume of all the air conditioners in the data center, and adjusting the rotating speeds of the air blower and the exhaust fan according to the required air volume of the data center.
In a particular embodiment, the controller is specifically configured to:
aiming at each air conditioner, acquiring the position information of the air conditioner, the configuration parameters of an outdoor fan of the air conditioner and the current rotating speed;
and acquiring the current air exhaust volume of the air conditioner according to the position information of the air conditioner, the configuration parameters of the outdoor side fan of the air conditioner, and the corresponding relation between the rotating speed of the outdoor side fan and the air exhaust volume of the air conditioner.
In a particular embodiment, the controller is specifically configured to:
determining the required air inlet volume of the air inlet box according to the required air volume of the data center;
and adjusting the rotating speed of the air feeder and the exhaust fan according to the required air inlet amount.
In a particular embodiment, the controller is specifically configured to:
acquiring the number of the blowers, configuration parameters of the blowers and wind resistance of outdoor cold air entering the air inlet box;
according to the intake of air inlet case, the quantity of forced draught blower, the configuration parameter of forced draught blower, outdoor side cold wind get into the windage in the air inlet case with the corresponding relation of the rotational speed of forced draught blower, confirm the intake of air inlet case is when the demand intake the first demand rotational speed of forced draught blower, and control the forced draught blower reaches the exhaust fan with first demand rotational speed operation.
In a particular embodiment, the controller is specifically configured to:
determining the required air exhaust volume of the air exhaust box according to the required air volume of the data center;
and adjusting the rotating speed of the air feeder and the exhaust fan according to the required exhaust air volume.
In a particular embodiment, the controller is specifically configured to:
acquiring the number of the exhaust fans, configuration parameters of the exhaust fans and wind resistance of the outdoor cold wind after heat exchange to be exhausted out of the exhaust box;
according to the volume of airing exhaust of exhaust case, the quantity of exhaust fan the configuration parameter of exhaust fan, outdoor side cold wind after the heat transfer is discharged the outer windage of exhaust case with the corresponding relation of the rotational speed of exhaust fan confirms the volume of airing exhaust of exhaust case is when the volume is aired demand the second demand rotational speed of exhaust fan, and control the forced draught blower reaches the exhaust fan with the operation of second demand rotational speed.
In a specific embodiment, the plurality of cabinets are arranged in a single row or in two rows, and each row of cabinets and at least one air conditioner are arranged in the same row.
In a specific embodiment, the air inlet channel is located on a side of the hot air channel facing away from the plurality of cabinets, and the air outlet channel is located on the top of the data center.
In a specific embodiment, the cabinets arranged in at least one row are double-layer arrangement cabinets, the number of the air conditioners is 2n, every two air conditioners are overlapped to form an air conditioner group, and the air conditioner group is positioned in the arrangement of the double-layer arrangement cabinets;
data center still includes middle exhaust passage, middle exhaust passage includes: the air conditioner comprises a transverse ventilation part and a longitudinal ventilation part, wherein the transverse ventilation part is positioned between a lower air conditioner and an upper air conditioner of the air conditioning group and is communicated with an outdoor side air outlet window of the lower air conditioner;
wherein n is a positive integer.
In a specific embodiment, the air inlet box and the air outlet box are respectively located at two sides of the data center, and the air inlet box is arranged near one end of the cold air channel, and the air outlet box is arranged near the other end of the cold air channel.
In a specific embodiment, the number of the air blowers is at least one; and/or the number of the exhaust fans is at least one.
In a second aspect, based on the same inventive concept, an embodiment of the present invention further provides a refrigeration control method for a data center, including:
acquiring the current air exhaust volume of each air conditioner;
determining the current total air discharge volume of all the air conditioners in the data center according to the current air discharge volume of each air conditioner, and determining the required air volume of the data center according to the current total air discharge volume of all the air conditioners in the data center;
and adjusting the rotating speeds of the air blower and the exhaust fan according to the required air volume of the data center.
In a third aspect, based on the same inventive concept, an embodiment of the present invention further provides a refrigeration control apparatus for a data center, including:
the acquiring unit is used for acquiring the current air exhaust volume of each air conditioner;
the determining unit is used for determining the current total air discharge volume of all the air conditioners in the data center according to the current air discharge volume of each air conditioner and determining the required air volume of the data center according to the current total air discharge volume of all the air conditioners in the data center;
and the control unit is used for adjusting the rotating speeds of the air blower and the exhaust fan according to the required air volume of the data center.
Drawings
FIG. 1 is a top view of a data center according to an embodiment of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a schematic view showing a stacked state of air conditioners according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the outdoor side air inlet and outlet direction and the indoor side air inlet and outlet direction of the air conditioner according to the embodiment of the present invention;
fig. 6 is a side view of an air conditioner according to an embodiment of the present invention;
FIG. 7 is a schematic view of an outdoor side air inlet window, an outdoor side air outlet window, an indoor side air inlet window and an indoor side air outlet window of an air conditioner according to an embodiment of the present invention;
FIG. 8 is a schematic view of a spacing structure of an air conditioner according to an embodiment of the present invention;
FIG. 9 is a schematic view of another partition structure of an air conditioner according to an embodiment of the present invention;
FIG. 10 is a schematic flow chart illustrating a method for controlling cooling in a data center according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a refrigeration control device of a data center according to an embodiment of the present invention.
Detailed Description
In order to ensure that the air inlet quantity of cold air at the outdoor side of the air conditioner can meet the refrigeration requirement of a data center, the embodiment of the invention provides the data center and a refrigeration control method and device of the data center. In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by referring to the following examples.
As shown in fig. 1 to 7, a data center provided in an embodiment of the present invention includes a plurality of cabinets 100 and at least one air conditioner 200, where the air conditioner 200 includes a casing 10, and an air-to-air heat exchanger 20, an outdoor side fan 30 and an indoor side fan 40 which are disposed in the casing 10, and the air-to-air heat exchanger 20 includes an outdoor air inlet side, an outdoor air outlet side, an indoor air inlet side and an indoor air outlet side; the shell 10 is provided with an outdoor air inlet window 11, an outdoor air outlet window 12, an indoor air inlet window 13 and an indoor air outlet window 14 which are respectively communicated with the outdoor air inlet side, the outdoor air outlet side, the indoor air inlet side and the indoor air outlet side; the outdoor side fan 30 and the indoor side fan 40 are respectively arranged at the outdoor side air outlet window 12 and the indoor side air outlet window 14; a cold air channel 300 is formed at the front side of the plurality of cabinets 100, a hot air channel 400 is formed at the rear side of the plurality of cabinets 100, the cold air channel 300 is communicated with an indoor side air outlet window 14 of the air conditioner 200, and the hot air channel 400 is communicated with an indoor side air inlet window 13 of the air conditioner; further comprising:
the air inlet box 500, the air outlet box 600, the blower, the exhaust fan, the air inlet channel 700 and the air outlet channel 800; the air inlet box 500 and the air outlet box 600 are respectively communicated with the outside; the air feeder and the exhaust fan are respectively arranged in the air inlet box 500 and the exhaust box 600; the air inlet channel 700 is respectively communicated with the air inlet box 500 and the outdoor air inlet window 11 of the air conditioner 200, and the air outlet channel 800 is respectively communicated with the air outlet box 600 and the outdoor air outlet window 12 of the air conditioner 200.
Wherein, the specific structure of the housing 10 is not limited, as shown in fig. 5 and 7, in one embodiment of the present invention, the housing 10 includes a front plate, a rear plate, a top plate, a bottom plate and two side plates; the outdoor air inlet window 11 is arranged on the rear plate and is positioned below the air-air heat exchanger 20; the outdoor air outlet window 12 is arranged on the top plate and is opposite to the outdoor fan 30; the indoor air outlet window 14 is arranged on the front plate and is opposite to the indoor fan 40; the indoor side air inlet window 13 is arranged on one side plate, is positioned behind the air-air heat exchanger 20 and is positioned above the outdoor side air inlet window 11; in other embodiments of the present invention, both the indoor side air inlet window 13 and the outdoor side air inlet window 11 may be disposed on the rear plate, so that the indoor side air inlet window 13 is located above the outdoor side air inlet window 11.
In the above embodiment, in order to ensure that the air inlet and outlet windows of the casing 10 are not affected by each other, the casing 10 further includes a spacing structure, and the spacing structure spaces the inside of the casing 10: an outdoor side air inlet chamber for communicating the outdoor side air inlet window 11 with the outdoor air inlet side of the air-air heat exchanger 20, an outdoor side air outlet chamber for communicating the outdoor side air outlet window 12 with the outdoor air outlet side of the air-air heat exchanger 20, an indoor side air inlet chamber for communicating the indoor side air inlet window 13 with the indoor air inlet side of the air-air heat exchanger 20, and an indoor side air outlet chamber for communicating the indoor side air outlet window 14 with the indoor air outlet side of the air-air heat exchanger 20. The specific structural form of the spacing structure is not limited, and as shown in fig. 8, the spacing structure includes: the first diaphragm plate 101 is used for connecting the bottom of the indoor air inlet side of the air-air heat exchanger 20 with the rear plate; a second diaphragm plate 102 connecting the bottom of the indoor air outlet side of the air-air heat exchanger 20 with the front plate; a third diaphragm 103 connecting the top of the indoor air outlet side of the air-air heat exchanger 20 with the front plate; a first longitudinal partition 104 connecting the top of the indoor air inlet side of the air-air heat exchanger 20 with the top plate; and a second vertical partition 105 connecting the bottom of the indoor air outlet side of the air-air heat exchanger 20 to the bottom plate. As shown in fig. 9, the spacing structure comprises: a first diaphragm 106 connecting the bottom of the indoor air inlet side of the air-air heat exchanger 20 with the rear plate; a second diaphragm 107 connecting the bottom of the indoor air outlet side of the air-air heat exchanger 20 with the front plate; a first longitudinal partition 108 connecting the top of the indoor air inlet side of the air-air heat exchanger 20 with the top plate; a second longitudinal partition 109 connecting the bottom of the indoor air outlet side of the air-air heat exchanger 20 with the bottom plate; and a third longitudinal partition plate 110 connecting the top of the indoor air outlet side of the air-air heat exchanger with the top plate.
The specific number and arrangement of the blowers and the exhaust fans are not limited, and the blowers and the exhaust fans can be specifically arranged according to the scale of the data center, the number of air conditioners and the like, and are preferably arranged in the air inlet box or the air exhaust box in a matrix form.
The specific number and arrangement of the outdoor side fans 30 and the indoor side fans 40 are not limited, and the design can be flexibly performed by combining the specification of the air-air heat exchanger 20 and the configuration parameters of the fans. As shown in fig. 5, in this embodiment, four outdoor side fans 30 are provided, and the four outdoor side fans 30 are arranged in a row; the number of the indoor side fans 40 is four, and the four indoor side fans 40 are arranged in a straight line.
Preferably, filter screens (not shown in the figure) are respectively arranged on the outdoor air inlet side and the indoor air inlet side of the air-air heat exchanger, so that the cleanliness of air entering the air-air heat exchanger can be improved, the air supply cleanliness is improved, and the service life of the air-air heat exchanger is prolonged.
The arrangement positions of the air inlet box 500 and the air outlet box 600 in the data center are not limited, and the arrangement positions can be specifically arranged according to the arrangement mode of the cabinets 100 in the data center. In the embodiment shown in fig. 1, the air inlet box 500 and the air outlet box 600 are respectively disposed at both sides of the data center, and the air inlet box 500 is disposed near one end of the cool air duct 300, and the air outlet box 600 is disposed near the other end of the cool air duct 300, so that cool air at the outdoor side actually enters from one side of the data center and is discharged from the other side of the data center, thereby simplifying the structures of the air inlet duct and the air outlet duct and ensuring the air flow direction to be clear.
In the embodiment of the invention, besides the air-air heat exchanger, the air conditioner also comprises a refrigeration circulation system and a spraying system which are arranged in the shell. Specifically, the refrigeration cycle system may be a compressor cycle system or a chilled water cycle system, for example, the refrigeration cycle system is a compressor cycle system, as shown in fig. 5, an evaporation coil 60 of the compressor cycle system is disposed between an indoor air outlet side of the air-to-air heat exchanger 20 and the indoor side fan 40, a condensation coil 70 of the compressor cycle system is disposed between an outdoor air outlet side of the air-to-air heat exchanger 20 and the outdoor side fan 30, and specific arrangement positions of a compressor 50, a throttling element, and the like of the compressor cycle system are not particularly limited, and may be flexibly arranged according to an internal structure of the air conditioner. The spraying system comprises a spraying end and a water receiving tray 80, wherein the spraying end is arranged between the outdoor air outlet side of the air-air heat exchanger and the outdoor fan 30 and is used for spraying to the air-air heat exchanger 20, the water receiving tray 80 is arranged right below the air-air heat exchanger 20, in addition, the spraying system usually comprises parts such as a water pump, an injection pipe and a drain pipe, the specific arrangement positions of the parts are not limited, and the parts can be flexibly arranged according to the internal structure of the air conditioner. When the spraying system works, the spraying tail end sprays water mist or water drops to the air-air heat exchanger 20, the water mist or the water drops converge in the water pan 80 after passing through the air-air heat exchanger 20, and then are pumped into the circulating pipeline again through the water pump for recycling, and the spray water lost due to evaporation can be replenished at any time through the water injection pipe. After working for a period of time, if the water quality is detected to be poor, the water in the water receiving tray 80 can be emptied, and then clean water is injected again through the water injection pipe.
In the above embodiments, when the air conditioner includes the air-air heat exchanger, the refrigeration cycle system, and the spray system at the same time, the air conditioner may operate in the dry mode, the wet mode, and the mixed mode, specifically,
when the outdoor temperature is lower than a set first temperature threshold value, for example, in winter, the air conditioner can work in a dry working condition mode, the refrigeration circulation system and the spraying system are closed, and the outdoor side fan and the indoor side fan are opened, so that refrigeration is realized by utilizing a natural cold source;
when the outdoor temperature is lower than the set second temperature threshold and not lower than the set first temperature threshold, for example, in a transition season, the air conditioner can work in a wet working condition mode, the refrigeration cycle system is closed at the moment, and the spraying system, the outdoor side fan and the indoor side fan are opened;
when the outdoor temperature is not lower than the set second temperature threshold, for example, in summer, the air conditioner can work in a mixed working condition mode, and the refrigeration cycle system, the spraying system, the outdoor side fan and the indoor side fan are all started at the moment.
Therefore, the air conditioner can adjust the refrigeration mode according to the outdoor temperature, and fully utilizes the natural cold source to achieve the purpose of reducing energy consumption.
The scheme of the embodiment of the invention adopts the indirect heat exchange cooling technology of the air-air heat exchanger 20 to realize the heat exchange between the indoor return air and the outdoor cold air, and the data center is internally provided with the air inlet box 500 and the air outlet box 600, and the air feeder in the air inlet box 500 is used for feeding the outdoor cold air into the air inlet channel 700, thereby providing sufficient air volume for the air conditioner; after the cold air at the outdoor side enters the air-air heat exchanger 20 of the air conditioner 200 to exchange heat with the return air at the indoor side, the cold air is discharged to an exhaust channel 800 by an outdoor side fan 30 of the air conditioner 200, and finally the cold air at the outdoor side after heat exchange is discharged to the outdoor by an exhaust fan in an exhaust box 600; therefore, in the embodiment of the invention, sufficient outdoor cold air is fed into the air inlet channel 700 through the air inlet box 500, so that the problem of insufficient air volume caused by direct introduction of outdoor cold air into the outdoor fan 30 of the air conditioner 200 is solved, and the air inlet volume of the outdoor cold air of the air conditioner can meet the refrigeration requirement of a data center.
Inside the data center, the plurality of cabinets 100 may be arranged in a single column or in two opposite columns, wherein each column of cabinets 100 is arranged in the same column as at least one air conditioner 200. It should be noted that, when the plurality of cabinets 100 are arranged in two rows, referring to fig. 1, the rear side of each row of cabinets 100 forms a hot air channel 400 of the row of cabinets 100, and a cold air channel 300 shared by the two rows of cabinets 100 can be formed between the two rows of cabinets 100. In the embodiment of the present invention, the specific arrangement positions of the air intake duct 700 and the air exhaust duct 800 in the data center are not limited, and as shown in fig. 1, fig. 2, fig. 3, and fig. 7, it is preferable that the air intake duct 700 is located on a side of the hot air duct 400 facing away from the plurality of cabinets 100, and the air exhaust duct 800 is located at the top of the data center. Thus, the outdoor side cold air fed from the inlet box 500 into the inlet duct 700 can directly enter the air-to-air heat exchanger 20 through the outdoor side inlet window 11 on the rear plate of the casing 10, and the outdoor side cold air after heat exchange with the indoor side return air in the air-to-air heat exchanger 20 can be discharged to the outlet duct 800 through the outdoor side outlet window 12 on the top plate of the casing 10. The cabinet 100 is arranged in two rows and is arranged oppositely, the air flow direction inside the data center is as shown in the arrow direction in fig. 1, the outdoor air flow and the indoor air flow are not interfered with each other and are clear in the direction of walking, and heat exchange is carried out through the air-air heat exchanger, so that the cleanness of the air inside the data center is guaranteed, the energy consumption of the air conditioner is reduced, the energy efficiency of the air conditioner is improved, and the air conditioner is convenient and flexible to configure and low in installation cost due to the fact that the air conditioner is in a modular design.
Referring to fig. 2 and 3, in a preferred embodiment of the present invention, at least one row of cabinets 100 is a double-row cabinet, 2n air conditioners 200 are provided, and every two air conditioners 200 are stacked to form an air conditioner group 900, and the air conditioner group 900 is located in the double-row cabinet arrangement; as shown in fig. 4, the data center further includes a middle exhaust duct, and the middle exhaust duct includes: a transverse ventilation part 810 positioned between the lower air conditioner and the upper air conditioner of the air conditioning group 900 and communicated with the outdoor side air outlet window of the lower air conditioner, and a longitudinal ventilation part 820 positioned at one side of the upper air conditioner, wherein the longitudinal ventilation part 820 is respectively communicated 800 with the transverse ventilation part 810 and the air exhaust channel; wherein n is a positive integer. That is, in this embodiment, n air conditioning groups 900 are disposed in the data center, and the n air conditioning groups 900 are disposed in the middle of the arrangement that can be inserted into the double-layer arrangement cabinet, or disposed at one end of the arrangement of the double-layer arrangement cabinet. The front side of the double-layer arrangement cabinet is provided with a cold air channel 300 communicated with each other, the rear side of the double-layer arrangement cabinet is provided with an upper hot air channel 400 and a lower hot air channel 400 which are separated from each other, and an indoor air inlet window of the upper air conditioner and an indoor air inlet window of the lower air conditioner are respectively communicated with the upper hot air channel 400 and the lower hot air channel 400 at the rear side of the double-layer arrangement cabinet.
As shown in fig. 1 and 4, each row of double-layer arrangement cabinet may be provided with two air conditioning sets 900, the two air conditioning sets 900 are adjacently disposed and located in the middle of the arrangement of the double-layer arrangement cabinet, two upper and lower hot air channels 400 separated from each other are respectively formed on two sides of the two air conditioning sets 900 on the rear side of the double-layer arrangement cabinet, and indoor air inlet windows of the upper and lower air conditioners of each air conditioning set 900 are respectively communicated with the upper and lower hot air channels 400 on the corresponding side.
In the operation process of the air conditioner, the rotating speed of an outdoor fan of the air conditioner is related to the refrigeration requirement of the data center, the temperature and humidity of outdoor cold air and other parameters. When the refrigeration demand of the data center changes, the refrigeration capacity of the air conditioner also changes, at the moment, the indoor side air supply quantity sent to the cold air channel in unit time is determined by comprehensively considering the parameters of the temperature and the humidity of the outdoor side cold air and the like, then the outdoor side air supply quantity required for cooling the indoor side air supply quantity is further determined, and finally the rotating speed of the outdoor side fan is adjusted through the outdoor side air supply quantity; when the parameters such as the temperature and the humidity of the outdoor cold air change, the refrigeration requirement of the data center needs to be comprehensively considered to determine the indoor air supply quantity to the cold air channel in unit time, and then the rotating speed of the outdoor fan is determined step by step through the similar process, so that the energy consumption is saved to the maximum extent on the premise of ensuring the refrigeration effect. It should be noted that the refrigeration capacity of the air conditioner can be specifically adjusted according to parameters such as the indoor return air temperature, the indoor air supply temperature, or the pressure difference between the cold air channel and the hot air channel, and the specific adjustment method is similar to the refrigeration control method of the air conditioner in the prior art, and is not described herein again.
In the embodiment of the present invention, after the outdoor cold air in the air inlet channel enters the air conditioner for heat exchange, the cold air is discharged to the air exhaust channel by the outdoor fan of the air conditioner, and in order to keep the pressure balance in the air conditioner, the air volume entering the air conditioner from the air inlet channel and the air volume discharged to the air exhaust channel by the air conditioner should be theoretically the same, further, the air volume entering the air conditioner from the air inlet channel or the air volume discharged to the air exhaust channel by the air conditioner and the air volume sent into the air inlet channel by the air inlet box also have a certain relationship, and the air volume sent into the air inlet channel by the air inlet box can be controlled by adjusting the rotation speed of the blower, therefore, in the embodiment of the present invention, the rotation speeds of the blower and the exhaust fan can be controlled by the relationship between the air exhaust volume of the air conditioner and the air supply volume of the air inlet box, in the specific implementation, the data center further comprises:
the controller is respectively connected with the air feeder, the exhaust fan and the processor of at least one air conditioner and is used for:
acquiring the current air exhaust volume of each air conditioner;
determining the current total air exhaust volume of all the air conditioners in the data center according to the current air exhaust volume of each air conditioner;
and determining the required air volume of the data center according to the current total air volume of all the air conditioners in the data center, and adjusting the rotating speeds of the air blower and the exhaust fan according to the required air volume of the data center. It should be noted that, in order to keep the pressure balance between the inside and the outside of the data center, the intake air amount fed into the intake air channel from the intake box and the exhaust air amount exhausted from the exhaust air channel from the exhaust box should theoretically be the same, so that the blower and the exhaust fan should operate at the same rotation speed under the condition that the configuration parameters and the number of the blower and the exhaust fan are the same.
In obtaining the air discharge amount of the air conditioner, in an embodiment of the present invention, the controller is further configured to:
aiming at each air conditioner, acquiring the position information of the air conditioner, the configuration parameters of an outdoor fan of the air conditioner and the current rotating speed;
and acquiring the current air exhaust volume of the air conditioner according to the position information of the air conditioner, the configuration parameters of the outdoor side fan of the air conditioner, and the corresponding relation between the rotating speed of the outdoor side fan and the air exhaust volume of the air conditioner.
For example, for an air conditioning unit with two superposed air conditioners, the outdoor air outlet window of the upper air conditioner can be directly communicated with the air exhaust channel at the top, the air exhaust resistance of the outdoor fan is low, the outdoor air outlet window of the lower air conditioner needs to be communicated with the air exhaust channel at the top through the middle air exhaust channel, the air exhaust path is obviously increased, and thus the air exhaust resistance is increased, so that the air exhaust amount is different even if the configuration parameters and the rotating speeds of the outdoor fans of the upper air conditioner and the lower air conditioner are the same.
The corresponding relation between the position relation of the air conditioner, the configuration parameter of the outdoor side fan of the air conditioner, the rotating speed of the outdoor side fan and the air exhaust amount of the air conditioner can be a function operation relation or a mapping relation which is stored in the controller in advance, and the current air exhaust amount of the air conditioner can be obtained according to the corresponding relation. It should be noted that, when the above-mentioned relationship is a functional relationship, the position information of the air conditioner may be embodied as a coefficient representing the air exhaust resistance of the air conditioner, so as to facilitate the editing of the functional operational relationship, and the specific value of the coefficient may be determined according to a test, which is not described herein again.
It is worth mentioning that the controller can be in communication connection with each air conditioner in the data center, so that the position information of each air conditioner, the configuration parameters of the outdoor fan, the current rotating speed and other related parameters can be directly obtained. Of course, the air conditioners in the data center can also carry out group control communication, so that the position information of all the air conditioners, the configuration parameters of outdoor fans, the current rotating speed and other related parameters are uploaded to the controller through one of the air conditioners, and therefore the wiring quantity and the construction workload can be reduced. Preferably, the air conditioners in the data center are in group control communication, the controller is in communication connection with two or more of the air conditioners, and the two or more air conditioners are used for uploading position information of all the air conditioners, configuration parameters of outdoor fans of the air conditioners, current rotating speed and other related parameters to the controller, so that the wiring number can be reduced, and the problem that the normal operation of the data center is influenced due to the fact that one air conditioner in communication connection with the controller breaks down can be avoided.
In the embodiment of the present invention, the required air volume of the data center should theoretically be equal to the air intake volume of the air intake box or the air exhaust volume of the air exhaust box, so that the rotating speeds of the blower and the air exhaust fan are adjusted according to the required air volume of the data center.
In the above embodiment, when the rotation speeds of the blower and the exhaust fan are adjusted according to the required intake air volume, the controller is specifically configured to:
acquiring the number of the blowers, configuration parameters of the blowers and the wind resistance of outdoor cold air entering an air inlet box;
determining a first required rotating speed of the air feeder when the air inlet volume of the air inlet box is the required air inlet volume according to the corresponding relation between the air inlet volume of the air feeder, the number of the air feeders, the configuration parameters of the air feeders, the air resistance of outdoor cold air entering the air inlet box and the rotating speed of the air feeder, and controlling the air feeder and the exhaust fan to operate at the first required rotating speed.
The air resistance of the outdoor cold air entering the air inlet box is related to the setting position of the air inlet box in the data center, the structural form of the air inlet box and the like, specific values can be determined according to test tests, and details are not repeated here. The corresponding relation between the air inlet volume of the air inlet box, the number of the blowers, the configuration parameters of the blowers, the air resistance of outdoor fresh air entering the air inlet box and the air supply volume of the blowers is a function operation relation or a mapping relation which is stored in the controller in advance, and the first required rotating speed of the blowers can be obtained according to the corresponding relation.
Of course, in other embodiments of the present invention, when the rotation speeds of the blower and the exhaust fan are adjusted according to the required air volume of the data center, the required exhaust air volume of the exhaust fan box may be determined according to the required air volume of the data center, and then the rotation speeds of the blower and the exhaust fan may be adjusted according to the required exhaust air volume.
Similarly, in this embodiment, when the rotation speeds of the blower and the exhaust fan are adjusted according to the required exhaust air volume, the controller is specifically configured to:
acquiring the number of exhaust fans, configuration parameters of the exhaust fans and wind resistance of the outdoor cold air exhausted outside the air exhaust box after heat exchange;
and determining a second required rotating speed of the exhaust fan when the exhaust volume of the exhaust box is the required exhaust volume according to the corresponding relation between the exhaust volume of the exhaust box, the number of the exhaust fans, the configuration parameters of the exhaust fans, the wind resistance of the outdoor cold air exhausted outside the exhaust box after heat exchange and the rotating speed of the exhaust fan, and controlling the air feeder and the exhaust fan to operate at the second required rotating speed.
Similarly, the corresponding relationship between the exhaust volume of the exhaust box, the number of the exhaust fans, the configuration parameters of the exhaust fans, the wind resistance of the outdoor fresh air exhausted out of the exhaust box and the exhaust volume of the exhaust fans is a function operation relationship or a mapping relationship which is stored in the controller in advance, and the second required rotating speed of the exhaust fans can be obtained according to the corresponding relationship.
As shown in fig. 10, based on the same inventive concept, an embodiment of the present invention further provides a refrigeration control method of a data center, including:
step 101, acquiring the current air exhaust volume of each air conditioner;
102, determining the current total air discharge quantity of all air conditioners in the data center according to the current air discharge quantity of each air conditioner, and determining the required air quantity of the data center according to the current total air discharge quantity of all air conditioners in the data center;
and 103, adjusting the rotating speeds of the air blower and the exhaust fan according to the required air volume of the data center.
In a specific embodiment, obtaining the current air discharge amount of each air conditioner comprises:
aiming at each air conditioner, acquiring the position information of the air conditioner, the configuration parameters of an outdoor fan of the air conditioner and the current rotating speed;
and acquiring the current air exhaust volume of the air conditioner according to the position information of the air conditioner, the configuration parameters of the outdoor side fan of the air conditioner, and the corresponding relation between the rotating speed of the outdoor side fan and the air exhaust volume of the air conditioner.
In a specific embodiment, the rotation speed of the blower and the exhaust fan is adjusted according to the required air volume, and the method comprises the following steps:
determining the required air inlet volume of the air inlet box according to the required air volume of the data center;
and adjusting the rotating speeds of the air feeder and the exhaust fan according to the required air intake.
In a specific embodiment, the rotation speed of the blower and the exhaust fan is adjusted according to the required air inlet quantity, and the method comprises the following steps:
acquiring the number of the blowers, configuration parameters of the blowers and the wind resistance of outdoor cold air entering an air inlet box;
determining a first required rotating speed of the air feeder when the air inlet volume of the air inlet box is the required air inlet volume according to the corresponding relation between the air inlet volume of the air feeder, the number of the air feeders, the configuration parameters of the air feeders, the air resistance of outdoor cold air entering the air inlet box and the rotating speed of the air feeder, and controlling the air feeder and the exhaust fan to operate at the first required rotating speed.
In one specific embodiment, the method for adjusting the rotation speed of the air blower and the air exhaust fan according to the air volume demand of the data center comprises the following steps:
determining the required air exhaust amount of the air exhaust box according to the required air amount of the data center;
and adjusting the rotating speeds of the air feeder and the exhaust fan according to the required exhaust air volume.
In one specific embodiment, the speed of the blower and the exhaust fan is adjusted according to the exhaust amount required, and the method comprises the following steps:
acquiring the number of exhaust fans, configuration parameters of the exhaust fans and wind resistance of the outdoor cold air exhausted outside the air exhaust box after heat exchange;
and determining a second required rotating speed of the exhaust fan when the exhaust volume of the exhaust box is the required exhaust volume according to the corresponding relation between the exhaust volume of the exhaust box, the number of the exhaust fans, the configuration parameters of the exhaust fans, the wind resistance of the outdoor cold air exhausted outside the exhaust box after heat exchange and the rotating speed of the exhaust fan, and controlling the air feeder and the exhaust fan to operate at the second required rotating speed.
As shown in fig. 11, based on the same inventive concept, an embodiment of the present invention further provides a refrigeration control apparatus of a data center, including:
the acquiring unit 01 is used for acquiring the current air exhaust volume of each air conditioner;
the determining unit 02 is used for determining the current total air discharge volume of all the air conditioners in the data center according to the current air discharge volume of each air conditioner, and determining the required air volume of the data center according to the current total air discharge volume of all the air conditioners in the data center;
and the control unit 03 is used for adjusting the rotating speeds of the air blower and the exhaust fan according to the required air volume of the data center.
In a specific embodiment, the obtaining unit is specifically configured to:
aiming at each air conditioner, acquiring the position information of the air conditioner, the configuration parameters of an outdoor fan of the air conditioner and the current rotating speed;
and acquiring the current air exhaust volume of the air conditioner according to the position information of the air conditioner, the configuration parameters of the outdoor side fan of the air conditioner, and the corresponding relation between the rotating speed of the outdoor side fan and the air exhaust volume of the air conditioner.
In a particular embodiment, the control unit is specifically configured to:
determining the required air inlet volume of the air inlet box according to the required air volume of the data center;
and adjusting the rotating speeds of the air feeder and the exhaust fan according to the required air intake.
In a particular embodiment, the control unit is specifically configured to:
acquiring the number of the blowers, configuration parameters of the blowers and the wind resistance of outdoor cold air entering an air inlet box;
determining a first required rotating speed of the air feeder when the air inlet volume of the air inlet box is the required air inlet volume according to the corresponding relation between the air inlet volume of the air feeder, the number of the air feeders, the configuration parameters of the air feeders, the air resistance of outdoor cold air entering the air inlet box and the rotating speed of the air feeder, and controlling the air feeder and the exhaust fan to operate at the first required rotating speed.
In a particular embodiment, the control unit is specifically configured to:
determining the required air exhaust amount of the air exhaust box according to the required air amount of the data center;
and adjusting the rotating speeds of the air feeder and the exhaust fan according to the required exhaust air volume.
In a particular embodiment, the control unit is specifically configured to:
acquiring the number of exhaust fans, configuration parameters of the exhaust fans and wind resistance of the outdoor cold air exhausted outside the air exhaust box after heat exchange;
and determining a second required rotating speed of the exhaust fan when the exhaust volume of the exhaust box is the required exhaust volume according to the corresponding relation between the exhaust volume of the exhaust box, the number of the exhaust fans, the configuration parameters of the exhaust fans, the wind resistance of the outdoor cold air exhausted outside the exhaust box after heat exchange and the rotating speed of the exhaust fan, and controlling the air feeder and the exhaust fan to operate at the second required rotating speed.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (17)

1. A data center comprises a plurality of machine cabinets and at least one air conditioner, wherein the air conditioner comprises a shell, an air-air heat exchanger, an outdoor fan and an indoor fan, wherein the air-air heat exchanger, the outdoor fan and the indoor fan are arranged in the shell; the shell is provided with an outdoor air inlet window, an outdoor air outlet window, an indoor air inlet window and an indoor air outlet window which are respectively communicated with the outdoor air inlet side, the outdoor air outlet side, the indoor air inlet side and the indoor air outlet side; the outdoor side fan and the indoor side fan are respectively arranged at an outdoor side air outlet window and an indoor side air outlet window; a cold air channel is formed in the front side of each cabinet, a hot air channel is formed in the rear side of each cabinet, the cold air channels are communicated with indoor air outlet windows of the air conditioners, and the hot air channels are communicated with indoor air inlet windows of the air conditioners; it is characterized by also comprising:
the air inlet box, the air exhaust box, the air feeder, the exhaust fan, the air inlet channel and the air exhaust channel; the air inlet box and the air exhaust box are respectively communicated with the outside; the air feeder and the exhaust fan are respectively arranged in the air inlet box and the exhaust box; the air inlet channel is respectively communicated with the air inlet box and an outdoor air inlet window of the air conditioner, and the air exhaust channel is respectively communicated with the air exhaust box and an outdoor air outlet window of the air conditioner;
the controller is respectively connected with the air feeder, the exhaust fan and the processor of at least one air conditioner and is used for:
acquiring the current air exhaust volume of each air conditioner;
determining the current total air discharge quantity of all the air conditioners in the data center according to the current air discharge quantity of each air conditioner;
determining the required air volume of the data center according to the current total air volume of all air conditioners in the data center, and adjusting the rotating speeds of the air blower and the exhaust fan according to the required air volume of the data center;
the controller is specifically configured to:
determining the required air inlet volume of the air inlet box according to the required air volume of the data center;
adjusting the rotating speeds of the air feeder and the exhaust fan according to the required air inlet amount;
acquiring the number of the blowers, configuration parameters of the blowers and wind resistance of outdoor cold air entering the air inlet box;
according to the intake of air inlet case, the quantity of forced draught blower, the configuration parameter of forced draught blower, outdoor side cold wind get into the windage in the air inlet case with the corresponding relation of the rotational speed of forced draught blower, confirm the intake of air inlet case is when the demand intake the first demand rotational speed of forced draught blower, and control the forced draught blower with first demand rotational speed moves.
2. The data center of claim 1, wherein the controller is specifically configured to:
aiming at each air conditioner, acquiring the position information of the air conditioner, the configuration parameters of an outdoor fan of the air conditioner and the current rotating speed;
and acquiring the current air exhaust volume of the air conditioner according to the position information of the air conditioner, the configuration parameters of the outdoor side fan of the air conditioner, and the corresponding relation between the rotating speed of the outdoor side fan and the air exhaust volume of the air conditioner.
3. The data center of claim 1, wherein the controller is specifically configured to:
determining the required air exhaust volume of the air exhaust box according to the required air volume of the data center;
and adjusting the rotating speed of the air feeder and the exhaust fan according to the required exhaust air volume.
4. The data center of claim 3, wherein the controller is specifically configured to:
acquiring the number of the exhaust fans, configuration parameters of the exhaust fans and wind resistance of the outdoor cold wind after heat exchange to be exhausted out of the exhaust box;
according to the air exhaust volume of the air exhaust box, the quantity of the exhaust fans, the configuration parameters of the exhaust fans and the corresponding relation between the air resistance outside the air exhaust box and the rotating speed of the exhaust fans, the air exhaust volume of the air exhaust box is determined to be the second required rotating speed of the exhaust fans when the air exhaust volume is required, and the exhaust fans are controlled to operate at the second required rotating speed.
5. The data center of claim 1, wherein the plurality of cabinets are arranged in a single column or in two opposing columns, each column of cabinets being arranged in the same column as at least one of the air conditioners.
6. The data center of claim 5, wherein the air inlet channel is located on a side of the hot air channel facing away from the plurality of cabinets, and the air outlet channel is located on a top of the data center.
7. The data center of claim 5, wherein at least one row of the cabinets is a double-layer arrangement cabinet, the number of the air conditioners is 2n, every two air conditioners are stacked to form an air conditioner group, and the air conditioner group is located in the arrangement of the double-layer arrangement cabinet;
data center still includes middle exhaust passage, middle exhaust passage includes: the air conditioner comprises a transverse ventilation part and a longitudinal ventilation part, wherein the transverse ventilation part is positioned between a lower air conditioner and an upper air conditioner of the air conditioning group and is communicated with an outdoor side air outlet window of the lower air conditioner;
wherein n is a positive integer.
8. The data center of claim 1, wherein the air intake boxes and the air exhaust boxes are located on respective sides of the data center, and the air intake boxes are located near one end of the cold air duct and the air exhaust boxes are located near the other end of the cold air duct.
9. The data center of claim 1, wherein the number of blowers is at least one; and/or the number of the exhaust fans is at least one.
10. A refrigeration control method applied to the data center of claim 1, comprising:
acquiring the current air exhaust volume of each air conditioner;
determining the current total air discharge volume of all the air conditioners in the data center according to the current air discharge volume of each air conditioner, and determining the required air volume of the data center according to the current total air discharge volume of all the air conditioners in the data center;
adjusting the rotating speeds of the air blower and the exhaust fan according to the required air volume of the data center;
according to the demand air volume control the forced draught blower reaches the rotational speed of exhaust fan includes:
determining the required air inlet volume of the air inlet box according to the required air volume of the data center;
adjusting the rotating speeds of the air feeder and the exhaust fan according to the required air inlet amount;
according to the demand intake is adjusted the forced draught blower reaches the rotational speed of exhaust fan includes:
acquiring the number of the blowers, configuration parameters of the blowers and wind resistance of outdoor cold air entering the air inlet box;
according to the intake of air inlet case, the quantity of forced draught blower, the configuration parameter of forced draught blower, outdoor side cold wind get into the windage in the air inlet case with the corresponding relation of the rotational speed of forced draught blower, confirm the intake of air inlet case is when the demand intake the first demand rotational speed of forced draught blower, and control the forced draught blower with first demand rotational speed moves.
11. The refrigeration control method according to claim 10, wherein said obtaining a current discharge air volume of each of said air conditioners comprises:
aiming at each air conditioner, acquiring the position information of the air conditioner, the configuration parameters of an outdoor fan of the air conditioner and the current rotating speed;
and acquiring the current air exhaust volume of the air conditioner according to the position information of the air conditioner, the configuration parameters of the outdoor side fan of the air conditioner, and the corresponding relation between the rotating speed of the outdoor side fan and the air exhaust volume of the air conditioner.
12. The refrigeration control method according to claim 10, wherein the adjusting the rotation speeds of the blower and the exhaust fan according to the demanded air volume of the data center includes:
determining the required air exhaust volume of the air exhaust box according to the required air volume of the data center;
and adjusting the rotating speed of the air feeder and the exhaust fan according to the required exhaust air volume.
13. The refrigeration control method according to claim 12, wherein said adjusting the rotation speeds of the blower and the exhaust fan according to the required exhaust air amount includes:
acquiring the number of the exhaust fans, configuration parameters of the exhaust fans and wind resistance of the outdoor cold wind after heat exchange to be exhausted out of the exhaust box;
according to the air exhaust volume of the air exhaust box, the quantity of the exhaust fans, the configuration parameters of the exhaust fans and the corresponding relation between the air resistance outside the air exhaust box and the rotating speed of the exhaust fans, the air exhaust volume of the air exhaust box is determined to be the second required rotating speed of the exhaust fans when the air exhaust volume is required, and the exhaust fans are controlled to operate at the second required rotating speed.
14. A refrigeration control apparatus applied to the data center according to claim 1, comprising:
the acquiring unit is used for acquiring the current air exhaust volume of each air conditioner;
the determining unit is used for determining the current total air discharge volume of all the air conditioners in the data center according to the current air discharge volume of each air conditioner and determining the required air volume of the data center according to the current total air discharge volume of all the air conditioners in the data center;
the control unit is used for adjusting the rotating speeds of the air blower and the exhaust fan according to the required air volume of the data center;
the control unit is specifically configured to:
determining the required air inlet volume of the air inlet box according to the required air volume of the data center;
adjusting the rotating speeds of the air feeder and the exhaust fan according to the required air inlet amount;
acquiring the number of the blowers, configuration parameters of the blowers and wind resistance of outdoor cold air entering the air inlet box;
according to the intake of air inlet case, the quantity of forced draught blower, the configuration parameter of forced draught blower, outdoor side cold wind get into the windage in the air inlet case with the corresponding relation of the rotational speed of forced draught blower, confirm the intake of air inlet case is when the demand intake the first demand rotational speed of forced draught blower, and control the forced draught blower with first demand rotational speed moves.
15. The refrigeration control device according to claim 14, wherein the acquisition unit is specifically configured to:
aiming at each air conditioner, acquiring the position information of the air conditioner, the configuration parameters of an outdoor fan of the air conditioner and the current rotating speed;
and acquiring the current air exhaust volume of the air conditioner according to the position information of the air conditioner, the configuration parameters of the outdoor side fan of the air conditioner, and the corresponding relation between the rotating speed of the outdoor side fan and the air exhaust volume of the air conditioner.
16. The refrigeration control device according to claim 14, wherein the control unit is specifically configured to:
determining the required air exhaust volume of the air exhaust box according to the required air volume of the data center;
and adjusting the rotating speed of the air feeder and the exhaust fan according to the required exhaust air volume.
17. The refrigeration control device according to claim 16, wherein the control unit is specifically configured to:
acquiring the number of the exhaust fans, configuration parameters of the exhaust fans and wind resistance of the outdoor cold wind after heat exchange to be exhausted out of the exhaust box;
according to the air exhaust volume of the air exhaust box, the quantity of the exhaust fans, the configuration parameters of the exhaust fans and the corresponding relation between the air resistance outside the air exhaust box and the rotating speed of the exhaust fans, the air exhaust volume of the air exhaust box is determined to be the second required rotating speed of the exhaust fans when the air exhaust volume is required, and the exhaust fans are controlled to operate at the second required rotating speed.
CN201910122960.8A 2019-02-19 2019-02-19 Data center, and refrigeration control method and device of data center Active CN111578432B (en)

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