CN105864884A - Data center air supply system - Google Patents
Data center air supply system Download PDFInfo
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- CN105864884A CN105864884A CN201510035867.5A CN201510035867A CN105864884A CN 105864884 A CN105864884 A CN 105864884A CN 201510035867 A CN201510035867 A CN 201510035867A CN 105864884 A CN105864884 A CN 105864884A
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Abstract
The invention provides a data center air supply system. The data center air supply system comprises a cold channel, an air supply pipe, a computer room precision air conditioner and a static pressure box, wherein the cold channel is formed by the front end faces of two rows of cabinets, a channel door, an air supply pored plate and a top sealing plate in a surrounded mode. An air supply opening of the air supply pipe is connected with the air supply pored plate. The static pressure box is connected with an air inlet of the air supply pipe and an air outlet of the computer room precision air conditioner. Cold air blown by the computer room precision air conditioner enters the static pressure box from the air outlet of the computer room precision air conditioner, and after being stabilized in the static pressure box, airflow is delivered into the air supply pipe and then enters the cold channel through the air supply pored plate. The angle of a guide plate can be changed according to the temperatures of different areas of the cabinets, so that the air supply amount of the front and rear portions of the cold channel is divided again, and heat dissipating requirements of the cabinets are met. Air cooling the cabinets is exhausted from the rear end faces of the cabinets and enters the computer room precision air conditioner again through an air conditioner air return opening. By means of the data center air supply system, the problems that traditional air supply systems are not smooth in airflow and not reasonable in airflow distribution, and the air short circuit occurs are solved, and heat dissipating efficiency of the cabinets in the cold channel is improved.
Description
Technical field
The present invention relates to a kind of data center refrigeration system, particularly to a kind of supply air system being arranged at above data center floor.
Background technology
In data center, equipment is arranged intensive, and heating is concentrated, and sensible heat amount is big, so that reasonably air current composition, effectively to remove heat in rack, it is ensured that the equipment requirement to air ambients such as humiture, cleanliness factor, air supply velocities.Existing data center machine room, the air supply mode used mainly has on under-floor air supply and top blows.Under-floor air supply is the principal mode of current data center air conditioner refrigerating air supply mode, and this air supply mode needs to lay electrostatic floor in data center machine room, and electrostatic floor height is 20-100cm, sometimes even up to 2m.Delivering to below electrostatic floor by the cold wind of special air conditioning for device room, form a static pressure casing the biggest, plenum chamber can reduce supply air system dynamic pressure, increase static pressure, steady air flow, minimizing airstream vibration etc., makes air-supply effect more preferable.By air-supply orifice plate, cold air is delivered in server cabinet again.
But it was verified that much use the machine room of under-floor air supply to be continuously increased due to cable underfloor in application process, causing under-floor air supply not smooth, air-supply air current composition is unreasonable, the serious problems such as wind short circuit even occurs.In this case, in order to ensure that the equipment of far-end obtains suitable temperature and controls, it has to turn down temperature set-point, it is clear that this will increase a lot of energy consumption.Additionally, a lot of machine rooms cannot change cabling because of business characteristic, can only increase air-conditioning equipment, ensure machine room humiture, and former air-conditioned refrigerating capacity is enough by the way of increasing air quantity, this materially increases energy consumption of machine room.On top, supply air system has a two ways: a kind of outwards blow for every air conditioning unit air duct, another kind be the air conditioning unit air-supply of multiple stage to plenum chamber, by the air-supply of plenum chamber outside induced duct.The advantage of the second air supply mode is easily to realize standby redundancy, after having one to shut down, remains air conditioning unit cold and still can deliver to each region of machine room via plenum chamber in air-conditioning；Inferior position is to need to do bigger plenum chamber, needs bigger space, and air supplying distance is limited.
Summary of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of data center supply air system, is used for solving owing to underground air-supply is the most freely sent in prior art, and wind air current composition is unreasonable, problem wind short circuit even occur.
For achieving the above object and other relevant purposes, the present invention provides a kind of data center supply air system, and described supply air system at least includes: the cold passage surrounded by the front end face of rack described in two rows, access door, air-supply orifice plate above described rack and the top closing plate that is connected between described enclosure top and air-supply orifice plate；Be positioned at above described air-supply orifice plate and with described cold passage just to ajutage；Described ajutage is provided with at least one air inlet and is internally provided with the deflector of zones of different cold air flows in regulating described cold passage；The bottom of described ajutage is provided with the air outlet being connected with described air-supply orifice plate；Described supply air system also includes: be provided with the precise machine room air conditioner of air outlet and return air inlet；The plenum chamber being connected mutually with the air outlet of described precise machine room air conditioner；Described plenum chamber is connected mutually with the air inlet of described ajutage；The cold air of described precise machine room air conditioner blowout enters described plenum chamber from its air outlet, enter described ajutage by described air inlet after air-flow is stable in described plenum chamber, enter described cold passage by the air outlet of described ajutage, described air-supply orifice plate afterwards.
The top of floor board for machine room it is positioned at as a kind of preferred version of data center's supply air system of the present invention, described precise machine room air conditioner and described plenum chamber.
As a kind of preferred version of data center's supply air system of the present invention, the length of described cold passage is not less than the length of single rack, and the width of described cold passage is not less than the twice of cabinet depth.
As between a kind of preferred version of data center's supply air system of the present invention, described top closing plate and described enclosure top and described air-supply orifice plate for being tightly connected.
As a kind of preferred version of data center's supply air system of the present invention, the air outlet of described precise machine room air conditioner is positioned at the top position of this precise machine room air conditioner；Its return air inlet is positioned at the side of this precise machine room air conditioner；The position of described plenum chamber and described air outlet are in same level.
As a kind of preferred version of data center's supply air system of the present invention, described plenum chamber is provided with at least one air inlet, and at least provided with an air outlet；The air outlet of described precise machine room air conditioner is connected to the air inlet of described plenum chamber by blast cap；Described plenum chamber is connected by the air inlet of its air outlet with described ajutage.
As a kind of preferred version of data center's supply air system of the present invention, the longitudinal section of described plenum chamber is rectangle, and its sectional area is more than the area sum of described ajutage air inlet；And more than described precise machine room air conditioner air outlet area sum.
As a kind of preferred version of data center's supply air system of the present invention, the longitudinal section of described ajutage is rectangle, and is uiform section or variable cross-section at length direction.
As a kind of preferred version of data center's supply air system of the present invention, described ajutage is in the variable cross-section of its length direction, the biggest the closer to plenum chamber sectional area.
As a kind of preferred version of data center's supply air system of the present invention, described deflector is made up of two blocks of sheet materials being mutually fixed angle, is connected by a rotating shaft between this two boards material, and the inwall of described ajutage is fixed at the two ends of described rotating shaft；The straight line at described rotating shaft place is along described ajutage width.
As a kind of preferred version of data center's supply air system of the present invention, the rotating shaft on described deflector is driven by motor and drives described deflector to rotate clockwise or counterclockwise.
As a kind of preferred version of data center's supply air system of the present invention, the access door of described cold passage open after the width that width is cold passage.
As mentioned above, data center's supply air system of the present invention, have the advantages that data center's supply air system of the present invention, the cold air of described precise machine room air conditioner blowout enters plenum chamber from its air outlet, enter the air inlet of ajutage after air-flow is stable in plenum chamber, enter cold passage by air-supply orifice plate.It is provided with deflector in described ajutage, the cold air entering ajutage can be divided into upper and lower two strands of air-flows by described deflector, and lower stream of airflow mainly leads to cold channel front portion, i.e. away from the rack that air-conditioning is nearer, upper air mainly leads to cold channel rear portion, i.e. away from air-conditioning rack farther out.Deflector can change angle according to the real-time device temperature in each several part rack, thus repartitions the air output of cold passage front and rear portions, coordinates the radiating requirements of each rack.The air having cooled down rack is discharged from rack rear end face, is again introduced into precise machine room air conditioner by return air inlet.This system can be prevented effectively from air's mixing, the cooling effectiveness of all racks in taking into account cold passage, reduces energy consumption for cooling, improves the radiating efficiency of rack in cold passage.And solve owing to underground air-supply is not smooth in prior art, wind air current composition is unreasonable, problem wind short circuit even occur.
Accompanying drawing explanation
Fig. 1 is shown as data center's supply air system structural representation of the present invention.
Fig. 2 to Fig. 3 is shown as the other two data center supply air system structural representation of the present invention.
Fig. 4 is shown as the air-flow schematic diagram after the deflector of the present invention rotates counterclockwise.
Fig. 5 is shown as the air-flow schematic diagram after the deflector of the present invention rotates clockwise.
Element numbers explanation
1 cold passage
2 racks
3 precise machine room air conditioners
4 plenum chambers
5 ajutages
6 deflectors
7 air-supply orifice plates
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention being described, those skilled in the art can be understood other advantages and effect of the present invention easily by the content disclosed by this specification.The present invention can also be carried out by the most different detailed description of the invention or apply, and the every details in this specification can also carry out various modification or change based on different viewpoints and application under the spirit without departing from the present invention.
Refer to Fig. 1 to Fig. 5.It should be noted that, diagram provided in the present embodiment illustrates the basic conception of the present invention the most in a schematic way, component count, shape and size when only showing the assembly relevant with the present invention rather than implement according to reality in the most graphic are drawn, during its actual enforcement, the kenel of each assembly, quantity and ratio can be a kind of random change, and its assembly layout kenel is likely to increasingly complex.
Embodiment one
As it is shown in figure 1, the described data center supply air system of the present embodiment includes the cold passage surrounded by the front end face of rack 2 described in two rows, access door, air-supply orifice plate above described rack and the top closing plate that is connected between described enclosure top and air-supply orifice plate；That is in Fig. 1, the front end of cold passage is provided with described access door, and the both sides of described cold passage are respectively provided with row's rack；Described cold passage both sides rack be arranged over blow orifice plate, described air-supply orifice plate is connected with each other by top closing plate with the top of described rack；Preferably, for being tightly connected between described top closing plate and described enclosure top and described air-supply orifice plate.It is further preferred that the access door of described cold passage open after the width that width is cold passage.And preferably, the material of described access door is transparent material.
This data center's supply air system also includes: be positioned at above described air-supply orifice plate and with described cold passage just to ajutage；Described ajutage 5 upright projection is in described cold passage 1；Described ajutage 5 is provided with at least one air inlet and is internally provided with the deflector 6 of zones of different cold air flows in regulating described cold passage 1；The bottom of described ajutage 5 is provided with the air outlet being connected with described air-supply orifice plate；Described supply air system also includes: be provided with the precise machine room air conditioner 3 of air outlet and return air inlet；The plenum chamber 4 being connected mutually with the air outlet of described precise machine room air conditioner 3, and this air outlet communicates with both plenum chambers 4；Described plenum chamber 4 is connected mutually with the air inlet of described ajutage 5 and the two communicates；As it is shown in figure 1, in the present embodiment preferably, described precise machine room air conditioner 3 and described plenum chamber are positioned at the top of floor board for machine room.
The cold air of described precise machine room air conditioner 3 blowout enters described plenum chamber 4 from its air outlet, enter described ajutage 5 by the air inlet of described ajutage 5 after air-flow is stable in described plenum chamber 4, enter described cold passage by the air outlet of described ajutage 5, described air-supply orifice plate afterwards.The cold air entering ajutage 5 can be divided into upper and lower two strands of air-flows by described deflector 6, and it is anterior that upper air mainly leads to cold passage 1, and i.e. away from the rack 2 that air-conditioning is nearer, lower stream of airflow mainly leads to cold passage 1 rear portion, i.e. away from air-conditioning rack 2 farther out.
Preferably, the length of described cold passage 1 is not less than the length of single rack 2, and the width of described cold passage 1 is not less than the twice of rack 2 degree of depth, to ensure stablizing of air-flow in cold passage 1.
Preferably, the air outlet of described precise machine room air conditioner is positioned at the top position of this precise machine room air conditioner；Its return air inlet is positioned at the side of this precise machine room air conditioner；As it is shown in figure 1, the position of described plenum chamber and described air outlet are in same level.It is further preferred that described plenum chamber is provided with at least one air inlet, and at least provided with an air outlet；The air outlet of described precise machine room air conditioner is connected to the air inlet of described plenum chamber by blast cap；And the air inlet of plenum chamber is positioned on its sidewall.
Described plenum chamber is connected by the air inlet of its air outlet with described ajutage.
It is further preferred that as in Fig. 1, the longitudinal section of described plenum chamber 4 is rectangle, and its sectional area is more than the area sum of described ajutage 5 air inlet；And more than the area sum of described precise machine room air conditioner 3 air outlet.Described longitudinal section refers to cut described plenum chamber 4 open obtained cross section on vertical direction.
As it is shown in figure 1, the longitudinal section of the described ajutage 5 in the present embodiment is rectangle, and being uiform section at length direction, the area that described uiform section refers to longitudinal section is the most identical with shape size.Described deflector 6 in the present invention is made up of two blocks of sheet materials being mutually fixed angle, that is the two is the most in the same plane, is connected by a rotating shaft between this two boards material, and the inwall of described ajutage 5 is fixed at the two ends of described rotating shaft；The straight line at described rotating shaft place is along described ajutage 5 width.
The operation principle of data center's supply air system of the present invention: the cold air of described precise machine room air conditioner 3 blowout enters described plenum chamber 4 from its air outlet, enter described ajutage 5 by the air inlet of described ajutage 5 after air-flow is stable in described plenum chamber 4, enter described cold passage 1 by the air outlet of described ajutage 5, described air-supply orifice plate 7 afterwards.The cold air entering ajutage 5 can be divided into upper and lower two strands of air-flows by described deflector 6, and it is anterior that lower stream of airflow mainly leads to cold passage 1, and i.e. away from the rack 2 that air-conditioning is nearer, upper air mainly leads to cold passage 1 rear portion, i.e. away from air-conditioning rack 2 farther out.Fig. 4, Fig. 5 show deflector 6 angle change after on the impact of air current composition in ajutage 5 and cold passage 1.Preferably, the rotating shaft on described deflector 6 is driven by motor and drives described deflector 6 to rotate clockwise or counterclockwise.The air output at air-supply orifice plate 7 two ends can be allocated by the anglec of rotation of regulation deflector 6；Preferably, in described rack 2, each server is provided with temperature sensor, the leaving air temp of each server can be obtained.When near-space adjusts rack 2 temperature of end to rise in cold passage 1, in Fig. 5, can rotate clockwise deflector 6, now on the downside of deflector 6, intake increases, and in cold passage 1, near-space adjusts terminal cabinet 2 heat radiation to strengthen；When rack 2 temperature away from air-conditioning end rises in cold passage 1, in Fig. 5, can rotate counterclockwise deflector 6, now on the upside of deflector 6, intake increases, and strengthens away from the heat radiation of air-conditioning terminal cabinet 2 in cold passage 1.As can be seen here, deflector 6 is deflected different angles and can adjust upper and lower sides intake ratio, so that the specific heat load of diverse location rack 2 changes in cold passage 1, cold air is guided, from the region of excessively refrigeration, the region that refrigeration is not enough.After using the present invention, the ajutage 5 above its air-supply orifice plate 7 adds deflector 6 design can be improved owing to underground air-supply is the most freely sent, and wind air current composition is unreasonable, problem wind short circuit even occur.
Embodiment two
The present embodiment is unlike embodiment one, and the longitudinal section of the ajutage in the present embodiment is variable cross-section；And in the variable cross-section of this ajutage length direction, the biggest the closer to plenum chamber sectional area.
As in figure 2 it is shown, the described data center supply air system of the present embodiment includes the cold passage surrounded by the front end face of rack 2 described in two rows, access door, air-supply orifice plate above described rack and the top closing plate that is connected between described enclosure top and air-supply orifice plate；That is in Fig. 2, the front end of cold passage is provided with described access door, and the both sides of described cold passage are respectively provided with row's rack；Described cold passage both sides rack be arranged over blow orifice plate, described air-supply orifice plate is connected with each other by top closing plate with the top of described rack；Preferably, for being tightly connected between described top closing plate and described enclosure top and described air-supply orifice plate.It is further preferred that the access door of described cold passage open after the width that width is cold passage.And preferably, the material of described access door is transparent material.
This data center's supply air system also includes: be positioned at above described air-supply orifice plate and with described cold passage just to ajutage；Described ajutage 5 upright projection is in described cold passage 1；Described ajutage 5 is provided with at least one air inlet and is internally provided with the deflector 6 of zones of different cold air flows in regulating described cold passage 1；The bottom of described ajutage 5 is provided with the air outlet being connected with described air-supply orifice plate；Described supply air system also includes: be provided with the precise machine room air conditioner 3 of air outlet and return air inlet；The plenum chamber 4 being connected mutually with the air outlet of described precise machine room air conditioner 3, and this air outlet communicates with both plenum chambers 4；Described plenum chamber 4 is connected mutually with the air inlet of described ajutage 5 and the two communicates；As in figure 2 it is shown, in the present embodiment preferably, described precise machine room air conditioner 3 and described plenum chamber are positioned at the top of floor board for machine room.
The cold air of described precise machine room air conditioner 3 blowout enters described plenum chamber 4 from its air outlet, enter described ajutage 5 by the air inlet of described ajutage 5 after air-flow is stable in described plenum chamber 4, enter described cold passage by the air outlet of described ajutage 5, described air-supply orifice plate afterwards.The cold air entering ajutage 5 can be divided into upper and lower two strands of air-flows by described deflector 6, and it is anterior that upper air mainly leads to cold passage 1, and i.e. away from the rack 2 that air-conditioning is nearer, lower stream of airflow mainly leads to cold passage 1 rear portion, i.e. away from air-conditioning rack 2 farther out.
Preferably, the length of described cold passage 1 is not less than the length of single rack 2, and the width of described cold passage 1 is not less than the twice of rack 2 degree of depth, to ensure stablizing of air-flow in cold passage 1.
Preferably, the air outlet of described precise machine room air conditioner is positioned at the top position of this precise machine room air conditioner；Its return air inlet is positioned at the side of this precise machine room air conditioner；As in figure 2 it is shown, the position of described plenum chamber and described air outlet are in same level.It is further preferred that described plenum chamber is provided with at least one air inlet, and at least provided with an air outlet；The air outlet of described precise machine room air conditioner is connected to the air inlet of described plenum chamber by blast cap；And the air inlet of plenum chamber is positioned on its sidewall.Described plenum chamber is connected by the air inlet of its air outlet with described ajutage.
It is further preferred that as in Fig. 2, the longitudinal section of described plenum chamber 4 is rectangle, and its sectional area is more than the area sum of described ajutage 5 air inlet；And more than the area sum of described precise machine room air conditioner 3 air outlet.Described longitudinal section refers to cut described plenum chamber 4 open obtained cross section on vertical direction.
As in figure 2 it is shown, the longitudinal section of the described ajutage 5 in the present embodiment is rectangle, and being variable cross-section at length direction, described variable cross-section refers to the area of longitudinal section and shape size differs.Preferably, described ajutage is in the variable cross-section of its length direction, the biggest the closer to plenum chamber sectional area.Its effect is to make the air output of air-supply orifice plate 7 more uniform.Described deflector 6 in the present invention is made up of two blocks of sheet materials being mutually fixed angle, that is the two is the most in the same plane, is connected by a rotating shaft between this two boards material, and the inwall of described ajutage 5 is fixed at the two ends of described rotating shaft；The straight line at described rotating shaft place is along described ajutage 5 width.
The operation principle of data center's supply air system of the present invention: the cold air of described precise machine room air conditioner 3 blowout enters described plenum chamber 4 from its air outlet, enter described ajutage 5 by the air inlet of described ajutage 5 after air-flow is stable in described plenum chamber 4, enter described cold passage 1 by the air outlet of described ajutage 5, described air-supply orifice plate 7 afterwards.The cold air entering ajutage 5 can be divided into upper and lower two strands of air-flows by described deflector 6, and it is anterior that lower stream of airflow mainly leads to cold passage 1, and i.e. away from the rack 2 that air-conditioning is nearer, upper air mainly leads to cold passage 1 rear portion, i.e. away from air-conditioning rack 2 farther out.Fig. 4, Fig. 5 show deflector 6 angle change after on the impact of air current composition in ajutage 5 and cold passage 1.Preferably, the rotating shaft on described deflector 6 is driven by motor and drives described deflector 6 to rotate clockwise or counterclockwise.The air output at air-supply orifice plate 7 two ends can be allocated by the anglec of rotation of regulation deflector 6；Preferably, in described rack 2, each server is provided with temperature sensor, the leaving air temp of each server can be obtained.When near-space adjusts rack 2 temperature of end to rise in cold passage 1, in Fig. 5, can rotate clockwise deflector 6, now on the downside of deflector 6, intake increases, and in cold passage 1, near-space adjusts terminal cabinet 2 heat radiation to strengthen；When rack 2 temperature away from air-conditioning end rises in cold passage 1, in Fig. 5, can rotate counterclockwise deflector 6, now on the upside of deflector 6, intake increases, and strengthens away from the heat radiation of air-conditioning terminal cabinet 2 in cold passage 1.As can be seen here, deflector 6 is deflected different angles and can adjust upper and lower sides intake ratio, so that the specific heat load of diverse location rack 2 changes in cold passage 1, cold air is guided, from the region of excessively refrigeration, the region that refrigeration is not enough.After using the present invention, the air output that can make air-supply orifice plate 7 is more uniform.Simultaneously air-supply orifice plate 7 above ajutage 5 add deflector 6 design can improve due to underground air-supply the most freely give, wind air current composition is unreasonable, even occur wind short circuit problem.
Embodiment three
The present embodiment is unlike embodiment one, and the air outlet above described precise machine room air conditioner is directly connected with described plenum chamber, Such a design reduces machine room floor space.
As it is shown on figure 3, the described data center supply air system of the present embodiment includes the cold passage surrounded by the front end face of rack 2 described in two rows, access door, air-supply orifice plate above described rack and the top closing plate that is connected between described enclosure top and air-supply orifice plate；That is in Fig. 3, the front end of cold passage is provided with described access door, and the both sides of described cold passage are respectively provided with row's rack；Described cold passage both sides rack be arranged over blow orifice plate, described air-supply orifice plate is connected with each other by top closing plate with the top of described rack；Preferably, for being tightly connected between described top closing plate and described enclosure top and described air-supply orifice plate.It is further preferred that the access door of described cold passage open after the width that width is cold passage.And preferably, the material of described access door is transparent material.
This data center's supply air system also includes: be positioned at above described air-supply orifice plate and with described cold passage just to ajutage；Described ajutage 5 upright projection is in described cold passage 1；Described ajutage 5 is provided with at least one air inlet and is internally provided with the deflector 6 of zones of different cold air flows in regulating described cold passage 1；The bottom of described ajutage 5 is provided with the air outlet being connected with described air-supply orifice plate；Described supply air system also includes: be provided with the precise machine room air conditioner 3 of air outlet and return air inlet；The plenum chamber 4 being connected mutually with the air outlet of described precise machine room air conditioner 3, and this air outlet communicates with both plenum chambers 4；Described plenum chamber 4 is connected mutually with the air inlet of described ajutage 5 and the two communicates；As it is shown on figure 3, in the present embodiment preferably, described precise machine room air conditioner 3 and described plenum chamber are positioned at the top of floor board for machine room.
The cold air of described precise machine room air conditioner 3 blowout enters described plenum chamber 4 from its air outlet, enter described ajutage 5 by the air inlet of described ajutage 5 after air-flow is stable in described plenum chamber 4, enter described cold passage by the air outlet of described ajutage 5, described air-supply orifice plate afterwards.The cold air entering ajutage 5 can be divided into upper and lower two strands of air-flows by described deflector 6, and it is anterior that upper air mainly leads to cold passage 1, and i.e. away from the rack 2 that air-conditioning is nearer, lower stream of airflow mainly leads to cold passage 1 rear portion, i.e. away from air-conditioning rack 2 farther out.
Preferably, the length of described cold passage 1 is not less than the length of single rack 2, and the width of described cold passage 1 is not less than the twice of rack 2 degree of depth, to ensure stablizing of air-flow in cold passage 1.
Preferably, the air outlet of described precise machine room air conditioner is positioned at the top position of this precise machine room air conditioner；Its return air inlet is positioned at the side of this precise machine room air conditioner；As it is shown on figure 3, the air inlet of described plenum chamber is positioned at bottom it, described plenum chamber is positioned at the top of described precise machine room air conditioner.Described plenum chamber is provided with at least one air inlet, and at least provided with an air outlet；The air outlet of the air inlet of plenum chamber with described precise machine room air conditioner is connected by described plenum chamber by being positioned at the top of described precise machine room air conditioner.
It is further preferred that as in Fig. 3, the longitudinal section of described plenum chamber 4 is rectangle, and its sectional area is more than the area sum of described ajutage 5 air inlet；And more than the area sum of described precise machine room air conditioner 3 air outlet.Described longitudinal section refers to cut described plenum chamber 4 open obtained cross section on vertical direction.
As it is shown on figure 3, the longitudinal section of the described ajutage 5 in the present embodiment is rectangle, and being uiform section at length direction, the area that described uiform section refers to longitudinal section is the most identical with shape size.Described deflector 6 in the present invention is made up of two blocks of sheet materials being mutually fixed angle, that is the two is the most in the same plane, is connected by a rotating shaft between this two boards material, and the inwall of described ajutage 5 is fixed at the two ends of described rotating shaft；The straight line at described rotating shaft place is along described ajutage 5 width.
The operation principle of data center's supply air system of the present invention: the cold air of described precise machine room air conditioner 3 blowout enters described plenum chamber 4 from its air outlet, enter described ajutage 5 by the air inlet of described ajutage 5 after air-flow is stable in described plenum chamber 4, enter described cold passage 1 by the air outlet of described ajutage 5, described air-supply orifice plate 7 afterwards.The cold air entering ajutage 5 can be divided into upper and lower two strands of air-flows by described deflector 6, and it is anterior that lower stream of airflow mainly leads to cold passage 1, and i.e. away from the rack 2 that air-conditioning is nearer, upper air mainly leads to cold passage 1 rear portion, i.e. away from air-conditioning rack 2 farther out.Fig. 4, Fig. 5 show deflector 6 angle change after on the impact of air current composition in ajutage 5 and cold passage 1.Preferably, the rotating shaft on described deflector 6 is driven by motor and drives described deflector 6 to rotate clockwise or counterclockwise.The air output at air-supply orifice plate 7 two ends can be allocated by the anglec of rotation of regulation deflector 6；Preferably, in described rack 2, each server is provided with temperature sensor, the leaving air temp of each server can be obtained.When near-space adjusts rack 2 temperature of end to rise in cold passage 1, in Fig. 5, can rotate clockwise deflector 6, now on the downside of deflector 6, intake increases, and in cold passage 1, near-space adjusts terminal cabinet 2 heat radiation to strengthen；When rack 2 temperature away from air-conditioning end rises in cold passage 1, in Fig. 5, can rotate counterclockwise deflector 6, now on the upside of deflector 6, intake increases, and strengthens away from the heat radiation of air-conditioning terminal cabinet 2 in cold passage 1.As can be seen here, deflector 6 is deflected different angles and can adjust upper and lower sides intake ratio, so that the specific heat load of diverse location rack 2 changes in cold passage 1, cold air is guided, from the region of excessively refrigeration, the region that refrigeration is not enough.After using the present invention, the air outlet above described precise machine room air conditioner is directly connected with described plenum chamber, Such a design reduces machine room floor space.Ajutage 5 above its air-supply orifice plate 7 adds deflector 6 design can be improved owing to underground air-supply is the most freely sent, and wind air current composition is unreasonable, problem wind short circuit even occur.
In sum, data center's supply air system of the present invention, the cold air of described precise machine room air conditioner blowout enters plenum chamber from its air outlet, enters the air inlet of ajutage, enter cold passage by air-supply orifice plate after air-flow is stable in plenum chamber.It is provided with deflector in described ajutage, the cold air entering ajutage can be divided into upper and lower two strands of air-flows by described deflector, and lower stream of airflow mainly leads to cold channel front portion, i.e. away from the rack that air-conditioning is nearer, upper air mainly leads to cold channel rear portion, i.e. away from air-conditioning rack farther out.Deflector can change angle according to the real-time device temperature in each several part rack, thus repartitions the air output of cold passage front and rear portions, coordinates the radiating requirements of each rack.The air having cooled down rack is discharged from rack rear end face, is again introduced into precise machine room air conditioner by return air inlet.This system can be prevented effectively from air's mixing, the cooling effectiveness of all racks in taking into account cold passage, reduces energy consumption for cooling, improves the radiating efficiency of rack in cold passage.And solve owing to underground air-supply is the most freely given in prior art, wind air current composition is unreasonable, problem wind short circuit even occur.So, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The principle of above-described embodiment only illustrative present invention and effect thereof, not for limiting the present invention.Above-described embodiment all can be modified under the spirit and the scope of the present invention or change by any person skilled in the art.Therefore, art has all equivalence modification or changes that usually intellectual is completed under without departing from disclosed spirit and technological thought such as, must be contained by the claim of the present invention.
Claims (12)
1. data center's supply air system, for blowing to the rack of described data center, it is characterised in that described supply air system is extremely
Include less: by the front end face of rack, access door described in two rows, be positioned at the air-supply orifice plate above described rack and be connected to institute
State the cold passage that the top closing plate between enclosure top and air-supply orifice plate surrounds；It is positioned at above described air-supply orifice plate and cold with described
Passage just to ajutage；Described ajutage is provided with at least one air inlet and is internally provided with in regulating described cold passage
The deflector of zones of different cold air flows；The bottom of described ajutage is provided with the air outlet being connected with described air-supply orifice plate；
Described supply air system also includes: be provided with the precise machine room air conditioner of air outlet and return air inlet；With described precise machine room air conditioner
The plenum chamber that is connected mutually of air outlet；Described plenum chamber is connected mutually with the air inlet of described ajutage；
The cold air of described precise machine room air conditioner blowout enters described plenum chamber from its air outlet, and air-flow is in described plenum chamber
Enter described ajutage by described air inlet after Wen Ding, entered by the air outlet of described ajutage, described air-supply orifice plate afterwards
Enter described cold passage.
Data center the most according to claim 1 supply air system, it is characterised in that: described precise machine room air conditioner and described plenum chamber
It is positioned at the top of floor board for machine room.
Data center the most according to claim 1 supply air system, it is characterised in that: the length of described cold passage is not less than single row machine
The length of cabinet, the width of described cold passage is not less than the twice of cabinet depth.
Data center the most according to claim 1 supply air system, it is characterised in that: described top closing plate and described enclosure top with
And for being tightly connected between described air-supply orifice plate.
Data center the most according to claim 1 supply air system, it is characterised in that: the air outlet of described precise machine room air conditioner is positioned at
The top position of this precise machine room air conditioner；Its return air inlet is positioned at the side of this precise machine room air conditioner；The position of described plenum chamber with
Described air outlet is in same level.
Data center the most according to claim 5 supply air system, it is characterised in that: described plenum chamber is provided with at least one air inlet,
And at least provided with an air outlet；The air outlet of described precise machine room air conditioner is connected to the air intake of described plenum chamber by blast cap
Mouthful；Described plenum chamber is connected by the air inlet of its air outlet with described ajutage.
Data center the most according to claim 6 supply air system, it is characterised in that: the longitudinal section of described plenum chamber is rectangle, and
Its sectional area is more than the area sum of described ajutage air inlet；And more than described precise machine room air conditioner air outlet area sum.
Data center the most according to claim 1 supply air system, it is characterised in that: the longitudinal section of described ajutage is rectangle, and
It is uiform section or variable cross-section at length direction.
Data center the most according to claim 8 supply air system, it is characterised in that: described ajutage cuts in the change of its length direction
In face, the biggest the closer to plenum chamber sectional area.
10. according to the data center's supply air system described in claim 1,7 or 9, it is characterised in that: described deflector is mutually by two pieces
The sheet material composition of fixed angle, is connected by a rotating shaft between this two boards material, and described ajutage is fixed at the two ends of described rotating shaft
Inwall；The straight line at described rotating shaft place is along described ajutage width.
11. data center according to claim 10 supply air systems, it is characterised in that: the rotating shaft on described deflector is driven by motor
Move and drive described deflector to rotate clockwise or counterclockwise.
12. data center according to claim 11 supply air systems, it is characterised in that: after the access door of described cold passage is opened
Width is the width of cold passage.
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| CN201510035867.5A CN105864884A (en) | 2015-01-23 | 2015-01-23 | Data center air supply system |
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| CN201510035867.5A CN105864884A (en) | 2015-01-23 | 2015-01-23 | Data center air supply system |
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| CN111615309A (en) * | 2020-06-03 | 2020-09-01 | 广州远正智能科技股份有限公司 | Method and system for planning air duct of precise air conditioner of data center machine room and adjusting variable air volume |
| CN111836524A (en) * | 2020-07-24 | 2020-10-27 | 广州亿效能科技有限公司 | IT load change-based method for regulating and controlling variable air volume of precision air conditioner between data center columns |
| CN111836524B (en) * | 2020-07-24 | 2023-03-31 | 广州远正智能科技股份有限公司 | IT load change-based method for regulating and controlling variable air volume of precision air conditioner between data center columns |
| CN114811738A (en) * | 2022-03-18 | 2022-07-29 | 青岛海尔空调电子有限公司 | Air conditioner indoor unit and air conditioner |
| CN115843170A (en) * | 2022-12-16 | 2023-03-24 | 广东志享信息科技有限公司 | Energy-saving control system for air conditioner in machine room |
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Application publication date: 20160817 |