CN103292426A - Machine room cooling device and cooling air supply adjusting method - Google Patents

Machine room cooling device and cooling air supply adjusting method Download PDF

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Publication number
CN103292426A
CN103292426A CN2012100456903A CN201210045690A CN103292426A CN 103292426 A CN103292426 A CN 103292426A CN 2012100456903 A CN2012100456903 A CN 2012100456903A CN 201210045690 A CN201210045690 A CN 201210045690A CN 103292426 A CN103292426 A CN 103292426A
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temperature
fan
air
machine room
temperature sensor
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CN2012100456903A
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CN103292426B (en
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黄文雄
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Huawei Digital Power Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The invention provides a machine room cooling device which comprises a fan, a temperature sensor arranged on a cabinet, and a controller connected with the temperature sensor and used for controlling the rotational speed of the fan, wherein the temperature sensor comprises a first temperature sensor and a second temperature sensor arranged at the air inlet and the air outlet of the cabinet; the controller is used for decreasing the rotational speed of the fan when the detected temperature difference value of the second temperature sensor and the first temperature sensor is smaller than the minimum value of a set interval; or the controller is used for increasing the rotational speed of the fan when the detected temperature difference value of the second temperature sensor and the first temperature sensor is larger than the maximum value of the set interval. The machine room cooling device achieves more precious adjustment of the cooling air supply amount, and achieves more efficient utilization of the cold airflow. The invention further provides a cooling air supply adjusting method.

Description

The device of cooling machine room and cooling air-supply control method
Technical field
The present invention relates to the apparatus cools technical field, more particularly, provide a kind of device that cools off machine room, the present invention also provides a kind of device of using above-mentioned cooling machine room to cool off the method that air-supply is regulated.
Background technology
Be placed with the information technoloy equipment of One's name is legion in the communication machine room, in order to guarantee the operate as normal of information technoloy equipment in the communication machine room, need the information technoloy equipment in the communication machine room be cooled off.
Prior art provides a kind of reinforcing pushing wind floor apparatus, its structure as shown in Figure 1, this reinforcing pushing wind floor apparatus adopts the EC blower fan 14 that is arranged in the housing 15 to carry out forced air supply, cold airflow is through flowing out from floor 13 after the guiding of adjustable air valve piece 11, wherein: the controller 12 of EC blower fan 14 can be adjusted the rotating speed of EC blower fan 14 according to environment on every side.Obviously, adjustable air valve piece 11 has been realized the guiding to cold airflow in the above-mentioned floor, and then the orientation that realizes cold airflow carries, and above-mentioned controller 12 detects by the temperature to the rack air outlet of information technoloy equipment simultaneously, and according to the variations in temperature of air outlet the rotating speed of EC blower fan 14 is regulated.
In the course of work of reality, above-mentioned reinforcing pushing wind floor apparatus still can not be realized still having the not high phenomenon of utilization rate of cold airflow in high-power information technoloy equipment distributed areas to cooling off the control that air output becomes more meticulous more.
In sum, how providing a kind of device that cools off machine room, with the adjusting that realizes the cooling air output is become more meticulous more, and then make cold airflow is utilized more efficiently, is present those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of device that cools off machine room, with realization the cooling air output of rack is more regulated with becoming more meticulous, and then realize cold airflow is utilized more efficiently.
In order to achieve the above object, the invention provides following technical scheme:
A kind of device that cools off machine room comprises:
Fan, be arranged on the rack temperature sensor with link to each other with described temperature sensor, be used for the controller of the described rotation speed of the fan of control; Described temperature sensor comprises the air inlet that is separately positioned on described rack and first temperature sensor and second temperature sensor of air outlet;
The difference that described controller is used for the temperature that detects when described second temperature sensor and described first temperature sensor reduces the rotating speed of described fan during less than the minimum of a value between described setting district;
Perhaps, the difference that described controller is used for the temperature that detects when described second temperature sensor and described first temperature sensor increases the rotating speed of described fan during greater than the maximum between described setting district.
The work of the device of cooling machine room provided by the invention cross claim as follows:
Cold airflow air inlet by rack under the drive of fan enters into rack and cools off, discharge from the air outlet of rack then, be separately positioned on the air inlet of rack and first temperature sensor and second temperature sensor of air outlet air inlet and air outlet are carried out temperature acquisition, the difference of the temperature that detects when second temperature sensor and first temperature sensor is during less than the minimum of a value between the setting district, and the rotating speed of controller control fan reduces; The difference of the temperature that detects when described second temperature sensor and first temperature sensor is during greater than the maximum between the setting district, and the rotating speed of controller control fan increases.
Can learn by the above-mentioned course of work, with respect in the prior art only the Temperature Distribution of the air outlet by detecting rack for the rotating speed of control fan, the present invention detects the air inlet of rack and the temperature of air outlet respectively, and control the rotating speed of fan according to the magnitude relationship of the value between the difference of air outlet and air inlet two place's temperature and setting district, this temperature gap with rack air outlet and air inlet is as controlled condition, environment that more can smart reflection rack periphery and then more regulate cooling off air output according to environment with cutting with becoming more meticulous, and then realized cold airflow is utilized more efficiently.
The present invention also provides a kind of cooling air-supply control method, is used for regulating the rotating speed of carrying the fan of cold airflow in the rack, may further comprise the steps:
Gather the temperature of air outlet and the air inlet of described rack respectively;
When the difference of the temperature of described air outlet and described air inlet during less than the minimum of a value between described setting district, the rotating speed of controlling described fan reduces;
Perhaps, when the difference of the temperature of described air outlet and described air inlet during greater than the maximum between described setting district, the rotating speed of controlling described fan increases.
The present invention also provides a kind of device that cools off machine room simultaneously, comprising:
Fan, be arranged on the rack temperature sensor with link to each other with described temperature sensor, be used for the controller of the described rotation speed of the fan of control; Described temperature sensor comprise the air inlet that is arranged on described rack first temperature sensor, be arranged on described rack air outlet second temperature sensor and be arranged on the three-temperature sensor at the top of described air inlet, the difference of described second temperature sensor and described first temperature sensor institute detected temperatures is first temperature gap, and the difference of described three-temperature sensor and described first temperature sensor institute detected temperatures is second temperature gap;
Described controller is used for increasing the rotating speed of described fan when described second temperature gap is greater than or equal to setting value;
Perhaps, described controller be used for when described second temperature gap less than setting value, and described first temperature gap increases the rotating speed of described fan when being greater than or equal to maximum between the setting district;
Perhaps, when described second temperature gap less than setting value, and described first temperature gap reduces the rotating speed of described fan during less than the minimum of a value between described setting district.
The work of the device of cooling machine room provided by the invention cross claim as follows:
Cold airflow air inlet by rack under the drive of fan enters into rack and cools off, discharge from the air outlet of rack then, first temperature sensor, second temperature sensor and three-temperature sensor carry out temperature detection to the top of air inlet, air outlet and the air inlet of rack respectively, when described second temperature gap was greater than or equal to setting value, the rotating speed that described controller is controlled described fan increased; When described second temperature gap less than setting value, and described first temperature gap is when being greater than or equal to maximum between the setting district, the rotating speed that described controller is controlled described fan increases; When described second temperature gap less than described setting value, and described first temperature gap is during less than the minimum of a value between described setting district, the rotating speed that described controller is controlled described fan reduces.
Can draw by the above-mentioned course of work, in terms of existing technologies, the present invention is respectively to the air inlet of rack, the top of air inlet and the temperature of air outlet are measured, and compare according to the difference of the temperature of air outlet and air inlet and the value between the setting district, difference and the setting value of the top of air inlet and the temperature of air inlet compare, thereby realize the adjusting that becomes more meticulous to the rack air quantity, judge the hot reflux situation of frame simultaneously according to the Temperature Distribution at air inlet top, thereby realization has further realized cold airflow is utilized more efficiently to the adjusting that cold airflow becomes more meticulous more.
The present invention also provides a kind of cooling air-supply control method, is used for regulating the rotating speed of carrying the fan of cold airflow in the rack, may further comprise the steps:
Gather the air inlet of described rack, the top of air inlet and the temperature of air outlet respectively, the difference of the temperature of described air outlet and the temperature of described air inlet is first temperature gap, and the difference of the temperature at the top of described air inlet and the temperature of described air inlet is second temperature gap;
When described second temperature gap was greater than or equal to setting value, the rotating speed that described controller is controlled described fan increased;
Perhaps, when described second temperature gap less than setting value, and described first temperature gap is when being greater than or equal to maximum between the setting district, the rotating speed that described controller is controlled described fan increases;
Perhaps, when described second temperature gap less than setting value, and described first temperature gap is during less than the minimum of a value between described setting district, the rotating speed that described controller is controlled described fan reduces.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in the embodiment of the invention or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of reinforcing pushing wind floor apparatus that Fig. 1 provides for prior art;
A kind of structural representation that cool off the device of machine room of Fig. 2 for providing in the embodiment of the invention one;
The structural representation of the device of machine room is provided for the another kind that provides in the embodiment of the invention one Fig. 3;
A kind of schematic flow sheet that cools off the air-supply control method that Fig. 4 provides for the embodiment of the invention one;
A kind of structural representation that cools off the device of machine room that Fig. 5 provides for the embodiment of the invention two;
The another kind that Fig. 6 provides for the embodiment of the invention two cools off the structural representation of the device of machine room;
A kind of schematic flow sheet that cools off the air-supply control method that Fig. 7 provides for the embodiment of the invention two.
Among last Fig. 1-5:
The controller 12 of adjustable air valve piece 11, EC blower fan, floor 13, EC blower fan 14, shell 15;
Floor 21, fan 22, fixed mount 23, stator 24, controller 25, PCM module 26, rack 27, second temperature sensor 28, first temperature sensor 29, three-temperature sensor 210;
Solid line hollow arrow among last Fig. 2, Fig. 3, Fig. 5 and Fig. 6 is represented the flow direction of cold airflow.
The specific embodiment
For quote and know for the purpose of, now the technical term that occurs in the embodiment of the invention is explained as follows:
The PCM module, employing be the cold-storage module that PCM (phase change material, phase-change material) makes.
The EC blower fan is the abbreviation of Embedded Controller blower fan, refers to blower fan inside and is embedded with controller, and this controller can be adjusted the rotating speed of blower fan according to environment temperature on every side.
The embodiment of the invention provides a kind of device that cools off machine room, with respect to the floor apparatus that prior art provides, has realized the cooling air output of rack is more controlled with becoming more meticulous.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work belongs to the scope of protection of the invention.
Embodiment one
Please refer to accompanying drawing 2, the figure shows a kind of apparatus structure schematic diagram that cools off machine room.
The device of the cooling machine room that provides in the embodiment of the invention is applied to comprise in the cooling system of rack in the machine room:
Fan 22 for delivery of cold airflow, is the power source that cold airflow flows in the device of whole cooling machine room;
Temperature sensor, be arranged on the rack 27, for detection of temperature, temperature sensor comprises the air inlet that is separately positioned on rack 27, for detection of first temperature sensor 29 of the temperature in the air inlet zone of rack 27 be arranged on the air outlet of rack 27, for detection of second temperature sensor 28 of the temperature in the air outlet zone of rack 27;
Controller 25, it links to each other with second temperature sensor 28 and fan 22 with first temperature sensor 29, rotating speed according to first temperature sensor 29 and second temperature sensor, 28 detected temperature controlled fans 22, and then realize adjusting to the cold airflow conveying capacity, concrete control procedure is as follows:
The temperature T that detects when second temperature sensor 28 OutThe temperature T that detects with first temperature sensor 29 InDifference drop into that (two end values between the setting district are T between the setting district 3And T 1, T wherein 3<T 1) when interior, show that the air outlet of rack 27 and air inlet are in the stable temperature changing environment this moment, cooling draft capacity to rack 27 is in the rationally normal scope, and the rotating speed of controller 25 control fans 22 is constant, and namely controller 25 control fans 22 do not carry out any operation;
Perhaps, because the contiguous more fan 22 of air inlet, thus the scope of the variations in temperature of the air inlet of rack 27 little (can think definite value), the temperature T that detects when second temperature sensor 28 OutThe temperature T that detects with first temperature sensor 29 InDifference less than the minimum of a value T between described setting district 3The time, showing that the temperature of air outlet of rack 27 is on the low side this moment, the amount of cold airflow is bigger than normal, and the rotating speed of controller 25 control fans 22 reduces to reduce the conveying capacity of cold airflow;
Perhaps, the temperature T that detects when second temperature sensor 28 OutThe temperature T that detects with first temperature sensor 29 InDifference greater than the maximum of T between the setting district 1The time, show the temperature drift of the air outlet of rack 27 this moment, and temperature rise is bigger, and the amount of cold airflow is less than normal, and the rotating speed of controller 25 control fans 22 increases to increase the conveying capacity of cold airflow.
Need to prove, be those skilled in the art between above-mentioned setting district according to the reasonable limit of temperature rise of setting during the equipment operate as normal in the machine room, and the temperature rise numerical value between this setting district needs realistic application scenarios.
With respect to prior art only the Temperature Distribution of the air outlet by detecting rack for the rotating speed of control fan, the device of the cooling machine room that the embodiment of the invention provides detects the air outlet of rack and the temperature of air inlet respectively, and control the rotating speed of fan according to the magnitude relationship of the value between the difference of air outlet and air inlet temperature and setting district, this with rack air outlet and the temperature gap of air inlet as controlled condition, environmental change that more can smart reflection rack periphery and then realize more regulating cooling off air output according to environment with cutting with becoming more meticulous, and then realized cold airflow is utilized more efficiently.
Application scenarios according to reality, the embodiment of the invention has been carried out further optimization to the device of above-mentioned cooling machine room, please refer to accompanying drawing 3,3 pairs of these prioritization schemes are explained in further detail as followsly by reference to the accompanying drawings now, and the device of the cooling machine room that the embodiment of the invention provides also comprises:
Floor 21, it is provided with air vent, is mainly used in the outflow of cold airflow, in order to improve drafting efficiency, strengthens the draft capacity of whole device, the 21 general higher floors of percent opening of adopting, above-mentioned floor.
Wind pushing cavity and cooling air-supply passage, wherein: wind pushing cavity is arranged on the floor 21 bottom, wind pushing cavity respectively with floor 21 on air vent and the cooling air-supply passage of 21 belows, floor be connected, fan 22 is arranged in the wind pushing cavity for delivery of cold airflow, in the cooling system of whole equipment room, after discharging, cold airflow enters into the cooling air-supply passage from refrigeration machine, enter into wind pushing cavity then, enter into rack 27 at the air vent that finally passes under the conveying of fan 22 on the floor 21, realization is to the cooling of equipment, the change of said fans 22 rotating speeds realizes the change to the conveying capacity of cold airflow, and under the general situation, said fans 22 adopts the stepless time adjustment fan, realization fan 22 rotating speeds are regulated transition stably, in Fig. 3, fan 22 is arranged in the wind pushing cavity by fixed mount 23, and fixed form is not limited to this certainly.
In the above-mentioned preferred version by fan 22 is arranged in the wind pushing cavity, and with wind pushing cavity on the floor 21 times with the cooling air-supply passage be connected, the device of having realized whole cooling machine room is more reasonably arranged in machine room, fan 22 will cool off cold airflow in the air-supply passage through wind pushing cavity in the process of cooling, discharge by the ventilating opening on the floor 21 then, a large amount of cold airflows flows to the top from the bottom of machine room by the floor of machine room, cooling effect is better, and this kind structure can be saved a large amount of machine room spaces simultaneously.
In the reinforcing pushing wind floor apparatus that provides in the prior art, guiding device is arranged between fan and the floor, cold airflow is the adjustable air valve piece of process under the conveying of fan, air vent by the floor finally enters into rack then, adjustable air valve piece is arranged on the output of whole reinforcing pushing wind floor apparatus, improved the flow resistance of whole reinforcing pushing wind floor apparatus, and then the efficient that causes blowing is low, in order to address the above problem, provide the air ducting of device of cooling machine room to be specially the stator 24 that multi-disc is arranged on the end that wind pushing cavity links to each other with the cooling air-supply passage in the embodiment of the invention, it is the inlet side that stator 24 is arranged on fan 22, discharge cold airflow air side from fan 22 under the conveying of fan 22 like this, has reduced the flow resistance of whole device.
In addition, in case reinforcing pushing wind floor apparatus of the prior art EC blower fan in the process of work lost efficacy, thermal current in the communication machine room can be by the passage on the floor, in the cooling air-supply passage, pour in down a chimney, the cold airflow that finally causes cooling off in the air-supply passage utilizes insufficient, refrigerating capacity descends, in order to address the above problem, stator 24 in the device of the cooling machine room that the embodiment of the invention provides, when fan 22 operate as normal, stator 24 is blown by cold airflow, realized the conducting of cold airflow passage, in case fan 22 lost efficacy, stator 24 under the effect of self gravitation, automatically fall after rise and closed wind pushing cavity and cooling air-supply passage between the cold airflow passage, having prevented that the external heat air-flow from pouring in down a chimney to enter into cools off air-supply passage, avoid thermal current to mix with cold airflow in the cooling air-supply passage, avoided cooling off the decline of cold airflow refrigerating capacity in the air-supply passage.
In order further to optimize technique scheme, the multi-disc stator 24 in the device of above-mentioned cooling machine room is evenly distributed on wind pushing cavity and the end that the cooling air-supply passage links to each other, and has realized cold airflow is dredged more uniformly.
In the device of the cooling machine room in the embodiment of the invention, the floor of high opening rate is preferably adopted on the floor, and for example percent opening is greater than or equal to 60% floor, has improved the draft capacity of whole device.Be more preferably, antistatic floor can be adopted in above-mentioned floor 21, has improved the safety coefficient of whole equipment room.
In the normal course of work, because night, the temperature of outdoor environment was lower, daytime, the temperature of outdoor environment was higher, in order further to improve the utilization ratio of cold airflow and to cut down the consumption of energy, the device of the cooling machine room that provides in the embodiment of the invention also comprises the phase-change material PCM module 26 that is arranged in the wind pushing cavity, enough colds are accumulated in phase transformation by PCM module 26 (adopting phase transition temperature under the general situation 20 ° PCM module), at night, when outdoor environment temperature is low, utilize the high and cheap characteristics of electricity price of this period air conditioner refrigerating efficient, the interior cold airflow temperature (for example turning down 16 °) of air-supply passage is cooled off in suitable turning down, PCM module 26 is accumulated enough energy in complete phase transformation at night; By day, when outdoor environment temperature raises, air conditioner refrigerating efficient reduces and electricity price is suitably heightened air-conditioning wind pushing temperature (for example heightening 22 °) when your becoming, and the cold that makes the PCM module accumulate for 26 nights discharges the cold in the additional cold airflow.Above-mentioned PCM module 26 the cold-storage characteristics of utilizing phase-change material are set, reduced the power consumption of whole device, reduced operation cost.
In order further to optimize technique scheme, the quantity of above-mentioned PCM module 26 is a plurality of, and all be arranged between two adjacent stators 22, the cold of Shi Fanging can fully mix with the cold airflow that stator 22 is derived like this, has realized that the cold that discharges mixes with the even of cold airflow.The scheme that is more preferably is: above-mentioned PCM module 26 is arranged on the cold air import department of wind pushing cavity, and PCM module 26 has loose structure, hole on this PCM module 26 is communicated with cooling air-supply passage and wind pushing cavity, this kind structure of PCM module 26 makes directly passes from PCM module 26 when cold airflow enters into wind pushing cavity, further improved the cold accumulated in the PCM module 26 and the contact area of cold airflow, realized cold airflow cold more more efficiently.Concrete, above-mentioned PCM module 26 has honeycomb porous structure, and the hole on the above-mentioned PCM module 26 also can be streamlined hole, and said structure makes that the heat exchange area of whole PCM module 26 is big, and flow resistance is low.Certainly, the structure in the hole on the above-mentioned PCM module 26 and distribution can also be adopted other form, are not limited in above-mentioned situation about enumerating.
For existing newly-built communication machine room, the big a large amount of or more existence of power consumption equipment, and be confined in the regional area, pass through face-to-face and back-to-back arrangement between each rack, and air inlet one side of two racks that link to each other realizes the isolation fully of cold airflow and thermal current in the whole communication machine room by division board, so there is not the hot air reflux phenomenon, only need control the rotating speed of fan by the temperature gap of air inlet and air outlet, therefore, the device of the cooling machine room that provides of the embodiment of the invention is suitable in the newly-built communication machine room.
The embodiment of the invention also provides a kind of cooling air-supply control method, be used for regulating to the rack 27 interior rotating speeds of carrying the fan 22 of cold airflow, please refer to accompanying drawing 4, the figure shows a kind of schematic flow sheet that cools off the air-supply control method that the embodiment of the invention one provides; The adjustment process of the cooling air-supply control method that provides below in conjunction with 4 pairs of embodiment of the invention of accompanying drawing specifically describes, and its adjustment process comprises the steps:
S401, the temperature T of gathering the air outlet of rack 27 OutTemperature T with air inlet In
S402, judge the temperature T in air port OutTemperature T with air inlet InDifference whether fall within that (two end values between the setting district are T between the setting district 3And T 1, T wherein 3<T 1) in, if, show that then the temperature rise of rack 27 is in the reasonable range, execution in step S403, if not, execution in step S404;
The rotating speed of S403, control fan 22 is constant;
S404, judge the temperature T in air port OutTemperature T with air inlet InDifference whether greater than the maximum between the setting district, if, show that then the temperature rise of rack 27 is bigger, need more cold air flow, execution in step S405 if not, then shows, the amount that is passed into the cold airflow in the rack 27 is enough, and cold air flow is more, execution in step S406;
The rotating speed of S405, the described fan 22 of control increases;
The rotating speed of S406, the described fan 22 of control reduces.
The cooling air-supply control method that the embodiment of the invention provides, by the air outlet of rack 27 and the temperature of air inlet are gathered, and control the rotating speed of fan 22 according to the magnitude relationship of the value between the difference of air outlet and air inlet temperature and setting district, this with rack 27 air outlet and the temperature gap of air inlet as controlled condition, environment that more can smart reflection rack 27 peripheries and then more regulate cooling off air output according to environment with cutting with becoming more meticulous, and then realized cold airflow is utilized more efficiently.
Embodiment two
Please refer to accompanying drawing 5, this figure is a kind of structural representation that cools off the device of machine room that the embodiment of the invention two provides.
The device of the cooling machine room that provides in the embodiment of the invention is applied to comprise in the cooling system of machine room:
Fan 22 for delivery of cold airflow, is the power source that cold airflow flows in the device of whole cooling machine room;
Temperature sensor is arranged on the rack 27, and for detection of temperature, the said temperature sensor comprises the air inlet that is arranged on rack 27, is used for gathering the temperature T of air inlet InFirst temperature sensor 29, be arranged on the air outlet of rack 27, be used for gathering the temperature T of air outlet OutSecond temperature sensor 28 and be arranged on the top of the air outlet of rack 27, be used for gathering the temperature T at the top of air outlet TopThree-temperature sensor 210;
Controller 25, it links to each other with first temperature sensor 29, second temperature sensor 28, three-temperature sensor 210 and fan 22, the rotating speed of the temperature controlled fan 22 that detects according to the said temperature sensor, and then realization is to the adjusting of cold airflow conveying capacity, wherein: the temperature T that described second temperature sensor 28 detects OutWith 29 detected temperatures T of first temperature sensor InDifference be first temperature gap, the temperature T that described three-temperature sensor 210 detects TopWith 29 detected temperatures T of first temperature sensor InDifference be second temperature gap; Concrete control procedure is as follows:
Because the ventilating opening on air inlet next-door neighbour floor 21 is when described second temperature gap is greater than or equal to setting value T 2The time, the hot air reflux phenomenon is serious, and the rotating speed of the described fan 22 of described controller 25 controls increases, to increase the conveying capacity of cold airflow;
Perhaps, when described second temperature gap less than the setting value T 2, and first temperature gap is greater than (two end values between the setting district are T between the setting district 3And T 1, T wherein 3<T 1) maximum of T 1The time, do not have the hot reflux phenomenon this moment, but the temperature rise ratio of rack 27 is very fast, and the rotating speed of the described fan 22 of described controller 25 controls increases;
Perhaps, when described second temperature gap less than the setting value T 2, and first temperature gap fall between described setting district in the time, do not have the hot air reflux phenomenon this moment, the temperature rise of rack 27 is in the reasonable range, the rotating speed of the described fan 22 of described controller 25 controls is constant;
Perhaps, when described second temperature gap less than setting value, and first temperature gap is less than the minimum of a value T between described setting district 3The time, do not have the hot air reflux phenomenon this moment, and the temperature rise ratio of rack 27 is less, and refrigerating capacity is bigger, and the rotating speed of the described fan 22 of described controller 25 controls reduces, to reduce the conveying capacity of cold airflow.
Need to prove, between above-mentioned setting district and setting value be the reasonable limit of temperature rise that those skilled in the art set during according to the equipment operate as normal in the machine room, temperature rise numerical value and setting value between this setting district need realistic application scenarios.
The device of the cooling machine room that the embodiment of the invention provides is measured the air inlet of rack, the top of air inlet and the temperature of air outlet respectively, and according to difference and the value between the setting district of the temperature of air outlet and air inlet compare, difference and the setting value of the temperature of air inlet top and air inlet compare, thereby realize the adjusting that becomes more meticulous to the rack air quantity, judge the hot reflux situation of frame simultaneously according to the Temperature Distribution at air inlet top, thereby realization has further realized cold airflow is utilized more efficiently to the adjusting that cold airflow becomes more meticulous more.
Application scenarios according to reality, the embodiment of the invention has been carried out further optimization to the device of above-mentioned cooling machine room, please refer to accompanying drawing 6,6 pairs of these prioritization schemes are explained in further detail as followsly by reference to the accompanying drawings now, and the device of the cooling machine room that the embodiment of the invention provides also comprises:
Floor 21, it is provided with air vent, is mainly used in the outflow of cold airflow, in order to improve drafting efficiency, strengthens the draft capacity of the device of whole cooling machine room, the 21 general higher floors of percent opening of adopting, above-mentioned floor;
Wind pushing cavity and cooling air-supply passage, wherein, wind pushing cavity is arranged on the bottom on floor 21, wind pushing cavity respectively with floor 21 on air vent and the cooling air-supply passage of 21 belows, floor be connected, fan 22 is arranged in this wind pushing cavity for delivery of cold airflow, in the cooling system of whole equipment room, cold airflow is discharged from refrigeration machine and is entered into the cooling air-supply passage, enter into wind pushing cavity then, enter into rack 27 at the air vent that finally passes under the effect of fan 22 on the floor 21, realize cooling, the change of said fans 22 speed realizes the conveying capacity to cold airflow, under the general situation, said fans 22 adopts the stepless time adjustment fan, and realization fan 22 speed are regulated transition stably; In Fig. 6, fan 22 is arranged in the wind pushing cavity by fixed mount 23, and fixed form is not limited to this certainly.
In the above-mentioned preferred version by fan 22 is arranged in the wind pushing cavity, and with wind pushing cavity on the floor 21 times with the cooling air-supply passage be connected, the device of having realized whole cooling machine room is more reasonably arranged in machine room, fan 22 will cool off cold airflow in the air-supply passage through wind pushing cavity in the process of cooling, discharge by the ventilating opening on the floor 21 then, a large amount of cold airflows flows to the top from the bottom of machine room by the floor 21 of machine room, cooling effect is better, and this kind structure can be saved a large amount of machine room spaces simultaneously.
In the reinforcing pushing wind floor apparatus that provides in the prior art, guiding device is arranged between fan and the floor, cold airflow is the adjustable air valve piece of process under the conveying of fan, air vent by the floor finally enters into rack then, adjustable air valve piece is arranged on the output of whole reinforcing pushing wind floor apparatus, improved the flow resistance of whole reinforcing pushing wind floor apparatus, and then the efficient that causes blowing is low, in order to address the above problem, provide the air ducting of device of cooling machine room to be specially the stator 24 that multi-disc is arranged on the end that wind pushing cavity links to each other with the cooling air-supply passage in the embodiment of the invention, it is the inlet side that stator 24 is arranged on fan 22, discharge cold airflow air side from fan 22 under the conveying of fan 22 like this, has reduced the flow resistance of whole device.
In addition, in case reinforcing pushing wind floor apparatus of the prior art EC blower fan in the process of work lost efficacy, thermal current in the communication machine room can be by the passage on the floor, in the cooling air-supply passage, pour in down a chimney, the cold airflow that finally causes cooling off in the air-supply passage utilizes insufficient, refrigerating capacity descends, in order to address the above problem, stator 24 in the device of the cooling machine room that the embodiment of the invention provides, when fan 22 operate as normal, stator 24 is blown by cold airflow, realized the conducting of cold airflow passage, in case fan 22 lost efficacy, stator 24 is under the effect of self gravitation, cold airflow passage between automatic falling and closed wind pushing cavity and the cooling air-supply passage, concrete, above-mentioned stator 24 is hinged on the end that wind pushing cavity links to each other with the cooling air-supply passage, concrete structure can be provided with hinged cover for the link of stator 24, the end that wind pushing cavity links to each other with the cooling air-supply passage is provided with hinged cover is hinged and cooperates, realize the jointed shaft of stator 24 above-mentioned functions, in the such scheme stator 24 prevented the external heat air-flow pour in down a chimney enter into the cooling air-supply passage, avoid thermal current to mix with cold airflow in the cooling air-supply passage, avoided cooling off the decline of cold airflow refrigerating capacity in the air-supply passage.
In order further to optimize technique scheme, the multi-disc stator 24 in the device of above-mentioned cooling machine room is evenly distributed on wind pushing cavity and the end that the cooling air-supply passage links to each other, and has realized cold airflow is dredged more uniformly.
In the device of the cooling machine room in the embodiment of the invention, the floor of high opening rate is preferably adopted on the floor, and for example percent opening is greater than or equal to 60% floor, has improved the draft capacity of the device of whole cooling machine room.Be more preferably, antistatic floor can be adopted in above-mentioned floor 21, has improved the safety coefficient of whole communication machine room.
In the normal course of work, because night, the temperature of outdoor environment was lower, daytime, the temperature of outdoor environment was higher, in order further to improve the utilization ratio of cold airflow and to cut down the consumption of energy, the device of the cooling machine room that provides in the embodiment of the invention also comprises the phase-change material PCM module 26 that is arranged in the wind pushing cavity, enough colds are accumulated in phase transformation by PCM module 26 (adopting phase transition temperature under the general situation 20 ° PCM module), at night, when outdoor environment temperature is low, utilize the high and cheap characteristics of electricity price of this period air conditioner refrigerating efficient, the interior cold airflow temperature (for example turning down 16 °) of air-supply passage is cooled off in suitable turning down, PCM module 26 is accumulated enough energy in complete phase transformation at night; By day, when outdoor environment temperature raises, air conditioner refrigerating efficient reduces and electricity price is suitably heightened air-conditioning wind pushing temperature (for example heightening 22 °) when your becoming, and the cold that makes the PCM module accumulate for 26 nights discharges the cold in the additional cold airflow.Above-mentioned PCM module 26 the cold-storage characteristics of utilizing phase-change material are set, reduced the power consumption of whole device, reduced operation cost.
In order further to optimize technique scheme, the quantity of above-mentioned PCM module 26 is a plurality of, and all be arranged between two adjacent stators 24, the cold of Shi Fanging can fully mix with the cold airflow that stator 24 is derived like this, has realized that the cold that discharges mixes with the even of cold airflow.The scheme that is more preferably is: above-mentioned PCM module 26 is arranged on the cold air import department of wind pushing cavity, and PCM module 26 has loose structure, hole on this PCM module 26 is communicated with cooling air-supply passage and wind pushing cavity, this kind structure of PCM module 26 makes directly passes from PCM module 26 when cold airflow enters into wind pushing cavity, further improved the cold accumulated in the PCM module 26 and the contact area of cold airflow, realized cold airflow cold more more efficiently.Concrete, above-mentioned PCM module 26 has honeycomb porous structure, and the hole on the above-mentioned PCM module 26 also can be streamlined hole, and said structure makes that the heat exchange area of whole PCM module 26 is big, and flow resistance is low.Certainly, the structure in the hole on the above-mentioned PCM module 26 and distribution can also be adopted other form, are not limited in above-mentioned situation about enumerating.
Because in traditional old-fashioned communication machine room, big power consumption equipment exists only in regional area, and do not arrange between the adjacent rack and interconnect, with the division board of realizing that cold airflow and thermal current are isolated, so device of the cooling machine room that the needs employing embodiment of the invention provides, in real time hot air reflux is detected, so the device of the cooling machine room that provides in the embodiment of the invention is fit to be applied in traditional communication machine room.
The embodiment of the invention also provides a kind of cooling air-supply control method, is used for regulating to the rack 27 interior rotating speeds of carrying the fan 22 of cold airflow, please refer to accompanying drawing 7, and this is illustrated as a kind of schematic flow sheet that cools off the air-supply control method that the embodiment of the invention two provides.The adjustment process of the cooling air-supply control method that provides below in conjunction with 7 pairs of embodiment of the invention of accompanying drawing specifically describes, and its adjustment process comprises the steps:
S701, the temperature T of gathering the air outlet of rack 27 Out, air inlet temperature T InAnd the temperature T at the top of air inlet Top
S702, judge the temperature T at the top in air port TopTemperature T with air inlet InDifference whether greater than setting value T 2, if illustrate that then the hot air reflux phenomenon is serious, execution in step S703; If not, execution in step S704;
The rotating speed of S703, control fan 22 increases;
S704, judge the temperature T in air port OutTemperature T with air inlet InDifference whether greater than (two end values between the setting district are T between the setting district 3And T 1, T wherein 3<T 1) maximum, if, no hot air reflux phenomenon is described, but the temperature rises in the rack 27 are in the bigger scope, execution in step S703, if not, execution in step S705;
S705, judge the temperature T in air port OutTemperature T with air inlet InDifference whether less than the minimum of a value between the setting district, if, then the explanation no hot air reflux phenomenon, but rack 27 temperature rises are little, do not need too big refrigerating capacity, execution in step S706, if not, in the then no hot air reflux phenomenon of explanation, and the temperature rise of rack is in and reasonably is divided into, execution in step S707;
The rotating speed of S706, control fan 22 reduces;
The rotating speed of S707, control fan 22 is constant.
The cooling air-supply control method that the embodiment of the invention provides, respectively the temperature at the top of air inlet, air outlet and the air inlet of rack is measured, and according to difference and the value between the setting district of the temperature of air outlet and air inlet compare, difference and the setting value of the temperature of air inlet top and air inlet compare, thereby realize the adjusting that becomes more meticulous to the rack air quantity, judge the hot reflux situation of frame simultaneously according to the Temperature Distribution at air inlet top, thereby realization has further realized cold airflow is utilized more efficiently to the adjusting that cold airflow becomes more meticulous more.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments herein.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.

Claims (26)

1. device that cools off machine room comprises:
Fan (22), be arranged on the rack (27) temperature sensor with link to each other with described temperature sensor, be used for the controller (25) of control described fan (22) rotating speed; It is characterized in that described temperature sensor comprises the air inlet that is separately positioned on described rack (27) and first temperature sensor (29) and second temperature sensor (28) of air outlet;
The difference that described controller (25) is used for the temperature that detects when described second temperature sensor (28) and described first temperature sensor (29) reduces the rotating speed of described fan (22) during less than the minimum of a value between described setting district;
Perhaps, the difference that described controller (25) is used for the temperature that detects when described second temperature sensor (28) and described first temperature sensor (29) increases the rotating speed of described fan (22) during greater than the maximum between described setting district.
2. the device of cooling machine room according to claim 1, it is characterized in that, described device also comprises floor (21) with ventilating opening, cool off air-supply passage and be arranged on the wind pushing cavity of bottom, described floor (21), described fan (22) is arranged in the described wind pushing cavity, and described wind pushing cavity communicates with air vent and the described cooling air-supply passage of described floor (21) respectively.
3. the device of cooling machine room according to claim 2 is characterized in that, this device also comprises air ducting, and described air ducting comprises that multi-disc is arranged on the stator (24) of the end that described wind pushing cavity links to each other with described cooling air-supply passage.
4. the device of cooling machine room according to claim 3 is characterized in that, described stator (24) is in opening when described fan (22) operate as normal; When fan (22) lost efficacy, auto-closing.
5. according to the device of claim 3 or 4 described cooling machine rooms, it is characterized in that the described stator of multi-disc (24) evenly distributes.
6. according to the device of each described cooling machine room among the claim 2-5, it is characterized in that the percent opening of described floor (21) is greater than or equal to 60%.
7. according to the device of any described cooling machine room among the claim 2-6, it is characterized in that described floor (21) are antistatic floor.
8. according to the device of any described cooling machine room among the claim 2-7, it is characterized in that, also comprise the phase-change material PCM module (26) that is arranged in the described wind pushing cavity.
9. the device of cooling machine room according to claim 8 is characterized in that, the quantity of described PCM module (26) is a plurality of, and all is arranged between adjacent two described stators (24).
10. according to Claim 8 or the device of 9 described cooling machine rooms, it is characterized in that, described PCM module (26) is arranged on the cold air import department of described wind pushing cavity, and described PCM module (26) has loose structure, and the hole on it is communicated with described cooling air-supply passage and described wind pushing cavity.
11. the device of any described cooling machine room is characterized in that according to Claim 8-10, described PCM module (26) has honeycomb porous structure.
12. the device of any described cooling machine room is characterized in that according to Claim 8-10, the hole on the described PCM module (26) is streamlined hole.
13. a cooling air-supply control method is used for regulating to the interior rotating speed of carrying the fan (22) of cold airflow of rack (27), it is characterized in that, may further comprise the steps:
Gather the air outlet of described rack (27) and the temperature of air inlet respectively;
When the difference of the temperature of described air outlet and described air inlet during less than the minimum of a value between described setting district, the rotating speed of controlling described fan (22) reduces;
Perhaps, when the difference of the temperature of described air outlet and described air inlet during greater than the maximum between described setting district, the rotating speed of controlling described fan (22) increases.
14. a device that cools off machine room comprises:
Fan (22), be arranged on the rack (27) temperature sensor with link to each other with described temperature sensor, be used for the controller (25) of control described fan (22) rotating speed; It is characterized in that, described temperature sensor comprise the air inlet that is arranged on described rack (27) first temperature sensor (29), be arranged on described rack (27) air outlet second temperature sensor (28) and be arranged on the three-temperature sensor (210) at the top of described air inlet, the difference of described second temperature sensor (28) and described first temperature sensor (29) institute detected temperatures is first temperature gap, and the difference of described three-temperature sensor (210) and described first temperature sensor (29) institute detected temperatures is second temperature gap;
Described controller (25) is used for increasing the rotating speed of described fan (22) when described second temperature gap is greater than or equal to setting value;
Perhaps, described controller (25) be used for when described second temperature gap less than setting value, and described first temperature gap increases the rotating speed of described fan (22) when being greater than or equal to maximum between the setting district;
Perhaps, described controller (25) be used for when described second temperature gap less than setting value, and described first temperature gap reduces the rotating speed of described fan (22) during less than the minimum of a value between described setting district.
15. the device of cooling machine room according to claim 14, it is characterized in that, described device also comprises floor (21) with ventilating opening, cool off air-supply passage and be arranged on the wind pushing cavity of bottom, described floor (21), described fan (22) is arranged in the described wind pushing cavity, and described wind pushing cavity communicates with air vent and the described cooling air-supply passage of described floor (21) respectively.
16. the device of cooling machine room according to claim 15 is characterized in that, this device also comprises air ducting, and described air ducting comprises that multi-disc is arranged on the stator (24) of the end that described wind pushing cavity links to each other with described cooling air-supply passage.
17. the device of cooling machine room according to claim 16 is characterized in that, described stator (24) is in opening when described fan (22) operate as normal; When described fan (22) lost efficacy, auto-closing.
18. the device according to claim 16 or 17 described cooling machine rooms is characterized in that, the described stator of multi-disc (24) evenly distributes.
19. the device according to the described cooling machine room of claim 15-18 is characterized in that, the percent opening of described floor (21) is greater than or equal to 60%.
20. the device according to any described cooling machine room among the claim 15-19 is characterized in that, described floor (21) are antistatic floor.
21. the device according to any described cooling machine room among the claim 15-20 is characterized in that, also comprises the phase-change material PCM module (26) that is arranged in the described wind pushing cavity.
22. the device of cooling machine room according to claim 21 is characterized in that, the quantity of described PCM module (26) is a plurality of, and all is arranged between adjacent two described stators (24).
23. the device according to claim 21 or 22 described cooling machine rooms, it is characterized in that, described PCM module (26) is arranged on the cold air import department of described wind pushing cavity, and described PCM module (26) has loose structure, and the hole on it is communicated with described cooling air-supply passage and described wind pushing cavity.
24. the device according to any described cooling machine room among the claim 21-23 is characterized in that, described PCM module (26) has honeycomb porous structure.
25. the device according to any described cooling machine room among the claim 21-23 is characterized in that, the hole on the described PCM module (26) is streamlined hole.
26. a cooling air-supply control method is used for regulating to the interior rotating speed of carrying the fan (22) of cold airflow of rack (27), it is characterized in that, may further comprise the steps:
Gather the air inlet of described rack (27), the top of air inlet and the temperature of air outlet respectively, the difference of the temperature of described air outlet and the temperature of described air inlet is first temperature gap, and the difference of the temperature at the top of described air inlet and the temperature of described air inlet is second temperature gap;
When described second temperature gap was greater than or equal to setting value, the rotating speed that described controller (25) is controlled described fan (22) increased;
Perhaps, when described second temperature gap less than setting value, and described first temperature gap is when being greater than or equal to maximum between the setting district, the rotating speed that described controller (25) is controlled described fan (22) increases;
Perhaps, when described second temperature gap less than setting value, and described first temperature gap is during less than the minimum of a value between described setting district, the rotating speed that described controller (25) is controlled described fan (22) reduces.
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CN106766020A (en) * 2017-03-21 2017-05-31 广州市天园科技有限公司 Fan coil adaptive controller and method based on direct current brushless motor
CN107401874A (en) * 2017-09-13 2017-11-28 珠海格力电器股份有限公司 Container and its air blowing control method
CN108131764A (en) * 2015-08-02 2018-06-08 泉州东行贸易有限公司 A kind of building
CN109947224A (en) * 2019-03-22 2019-06-28 珠海格力电器股份有限公司 The working method of emergency protecting equipment in cabinet, emergency protecting equipment, cabinet and computer readable storage medium in cabinet
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CN111637614A (en) * 2020-05-26 2020-09-08 内蒙古工业大学 Intelligent control method for data center active ventilation floor
CN112254271A (en) * 2020-09-30 2021-01-22 青岛海尔空调器有限总公司 Method and device for solving problem of reverse air suction of air conditioner and air conditioner
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CN107401874A (en) * 2017-09-13 2017-11-28 珠海格力电器股份有限公司 Container and its air blowing control method
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CN109947224B (en) * 2019-03-22 2021-08-24 珠海格力电器股份有限公司 Working method of emergency protection device in cabinet, cabinet and computer readable storage medium
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CN110017586A (en) * 2019-04-17 2019-07-16 广东美的制冷设备有限公司 Progress control method, device, air conditioner and computer readable storage medium
WO2021169801A1 (en) * 2020-02-27 2021-09-02 华为技术有限公司 Refrigeration device, method and device for controlling same, and refrigeration system
CN111637614A (en) * 2020-05-26 2020-09-08 内蒙古工业大学 Intelligent control method for data center active ventilation floor
CN111637614B (en) * 2020-05-26 2021-06-08 内蒙古工业大学 Intelligent control method for data center active ventilation floor
CN112254271A (en) * 2020-09-30 2021-01-22 青岛海尔空调器有限总公司 Method and device for solving problem of reverse air suction of air conditioner and air conditioner
CN112693277A (en) * 2020-12-25 2021-04-23 南京铁道职业技术学院 A whole monitoring control device of temperature for cold chain commodity circulation
CN112693277B (en) * 2020-12-25 2023-04-07 南京铁道职业技术学院 A whole monitoring control device of temperature for cold chain commodity circulation

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