CN102141288A - Air-conditioning controlling method and device - Google Patents
Air-conditioning controlling method and device Download PDFInfo
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- CN102141288A CN102141288A CN201110034628XA CN201110034628A CN102141288A CN 102141288 A CN102141288 A CN 102141288A CN 201110034628X A CN201110034628X A CN 201110034628XA CN 201110034628 A CN201110034628 A CN 201110034628A CN 102141288 A CN102141288 A CN 102141288A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/76—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by means responsive to temperature, e.g. bimetal springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
- F24F2011/0006—Control or safety arrangements for ventilation using low temperature external supply air to assist cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to an air-conditioning controlling method and device, capable of reducing supply air temperature and supply air flow rate so as to save power. A dew-point temperature sensor (9) is provided in a data center (1). In an air-conditioning controlling device (4A), a lower limit value for the supply air temperature wherein there is no danger of the occurrence of condensation within a data center (1) is calculated from a dew-point temperature (an inside dew-point temperature) that is measured by the dew-point temperature sensor (9), and a setting value for the supply air temperature and a setting value for the supply air flow rate into the data center the from the air-conditioning device are determined based on the calculated lower limit value for the supply air temperature. Note that a dew-point temperature for the exhaust air from within the data center (1), a dew-point temperature for the supply air into the data center (1) from the outside conditioning equipment (5), or a dew-point temperature of the outside air may be used instead of the inside dew-point temperature.
Description
Technical field
The room that the present invention relates to be provided with the equipment that might produce physical injury owing to dewfall is as control object chamber, and control is controlled the feed air temperature of object chamber supply and the air conditioning control method and the device of air feed air quantity from air conditioner to this.
Background technology
In the past, in the data center that is provided with electronic equipments such as server, came the heat extraction of the equipment in the process data center by air feed from air conditioner.(for example, with reference to patent documentation 1,2).
Figure 10 has represented its summary.In the figure, the 1st, data center (control object chamber), 2 are arranged on the air conditioner (cooling device) in the data center 1, the 3rd, accommodate the frame that is arranged on the electronic equipments such as server in the data center 1, the 4th, at the air conditioning control device of air conditioner 2 settings, the 5th, to the temperature of open-air and humidity is adjusted and the investigation mission outside the city or town machine supplied with in data center 1, the 6th, from data center's 1 interior exhaust fan of discharging exhaust, the 7th, detect the feed air temperature sensor of the temperature of the air feed of to data center 1 in, supplying with from air conditioner 2, the 8th, the refrigerant circulation adjusting device of the internal circulating load of the refrigerant that adjusting is supplied to air conditioner 2.
Wherein, as refrigerant circulation adjusting device 8, various operands such as compressor (COMP), expansion valve, hot gas bypass valve are arranged, and in this embodiment, represented the example of use compressor (COMP) as refrigerant circulation adjusting device 8 as an example.Below refrigerant circulation adjusting device 8 is called COMP8.
In this system, air conditioner 2 possesses cooling coil 2-1 and fan 2-2, is built-in with fan 3-1 in frame 3.COMP8 is arranged on the circulation canal of cooling coil 2-1 supply refrigerant.And in air conditioner 2, the air quantity of fan 2-2 (air feed air quantity) is fixed to 100%.The measured value tspv of the feed air temperature that air-conditioner controller 4 will be supplied with in data center 1 from feed air temperature sensor 7 is as input, and adjust at the frequency converter of COMP8 and export (COMPINV), so that the measured value tspv of this feed air temperature is consistent with the setting value tssp of predefined feed air temperature.That is, adjust % value at the frequency converter output of COMP8, control quantity delivered thus to the refrigerant of cooling coil 2-1 supply so that the measured value tspv of feed air temperature is consistent with the setting value tssp of feed air temperature.
Thus, in data center 1, will be fixed as 100% from the air feed air quantity of air conditioner 2, and feed air temperature is made as fixing, by handle the heat extraction that is housed in the electronic equipments such as server in the frame 3 from the air feed of air conditioner 2.
In data center 1,, the electronic equipment in the data center 1 is caused physical injury thereby dewfall then may take place if low excessively from the temperature of the air feed of air conditioner 2.Therefore, in this system, dehumidify and import data center 1 by 5 pairs of open-airs of investigation mission outside the city or town machine, be predetermined the setting value tssp that dewfall can not take place, have the feed air temperature of surplus capacity on the other hand in data center 1, and the setting value tssp of this feed air temperature is made as fixed value, thereby make from the constant constant control of the feed air temperature of air conditioner 2.In addition, as with the constant control similar techniques of this feed air temperature, in patent documentation 1, the cooling panel is set in the side of frame, the temperature of the heating agent that control is supplied with to the cooling panel is not so that this panel surface can dewfall.
Patent documentation
[patent documentation 1]: TOHKEMY 2003-35441 communique
[patent documentation 2]: TOHKEMY 2009-140421 communique
Summary of the invention
But, in system shown in Figure 10, the setting value tssp that sets feed air temperature than the highland makes it have surplus capacity, and the setting value tssp that makes the feed air temperature of this higher setting fixedly makes the constant constant control of feed air temperature, in addition, to be fixed as 100% from the air feed air quantity of air conditioner 2, therefore, have the bigger problem of catabiotic loss.
The present invention finishes in order to solve such problem, and its purpose is, a kind of air conditioning control method and device are provided, can the corresponding air feed air quantity that reduces is realized energy-conservation by reducing temperature.
In order to realize such purpose, the air conditioning control method that the present invention relates to is characterised in that, comprising: measure the dew-point temperature of control object chamber step, according to the dew-point temperature of measuring calculate step in the lower limit of the indoor feed air temperature that dewfall can not take place of control object, according to the step of the setting value of the lower limit decision air feed air quantity of the feed air temperature that calculates.
In this invention, measure the dew-point temperature of control object chamber, and calculate in the indoor lower limit (tsmin1) that the temperature of dewfall can not take place of control object according to the measured value (trpv) of this dew-point temperature.For example, surplus capacity is made as α and calculate the lower limit tsmin1 of feed air temperature according to tsmin1=trpv+ α.
And, decide the setting value tssp of feed air temperature according to the lower limit tsmin1 of the feed air temperature that calculates.For example, to be subjected to the lower limit of feed air temperature of power restriction of air conditioner as equipment restriction feed air temperature lower limit tsmin2, and the lower limit tsmin1 of this equipment restriction feed air temperature lower limit tsmin2 and the feed air temperature that calculates compared, with the lower limit of higher feed air temperature setting value tssp as feed air temperature.
In addition, decide the setting value Qssp of air feed air quantity according to the lower limit tsmin1 of the feed air temperature that calculates.For example, determine the setting value tssp of feed air temperature according to the lower limit tsmin1 of the feed air temperature that calculates, and according to the setting value tssp of this feed air temperature that is determined, according to Qssp (CMH)=rated power (kW) * 3600/{ (supposition inlet temperature-tssp) * proportion (kg/m
3)) decide the setting value Qssp of air feed air quantity.
In the present invention, measurement can be set from the dew-point temperature of the exhaust of control object chamber with replace measuring the step of the dew-point temperature of control object chamber from the step of the dew-point temperature of the air feed of investigation mission outside the city or town machine.That is, in the present invention, can be according to the lower limit of calculating feed air temperature from the dew-point temperature of the exhaust of control object chamber, also can be according to the lower limit of calculating feed air temperature from the dew-point temperature of the air feed of investigation mission outside the city or town machine.In addition, in the present invention, the investigation mission outside the city or town machine is not to be provided with, and under the situation that the investigation mission outside the city or town machine is not set, can consider to calculate according to the dew-point temperature of open-air the lower limit of feed air temperature.In addition, the present invention also can constitute the air conditioning control device of using above-mentioned air conditioning control method.
According to the present invention, the dew-point temperature of measurement control object chamber (perhaps, the dew-point temperature of exhaust, dew-point temperature, the dew-point temperature of open-air) from the air feed of investigation mission outside the city or town machine, calculate in the indoor lower limit that the feed air temperature of dewfall can not take place of control object according to this dew-point temperature of measuring, and decide the setting value of feed air temperature and the setting value of air feed air quantity according to the lower limit of this feed air temperature that calculates, therefore can reduce feed air temperature and corresponding minimizing air feed air quantity, thereby can realize energy-conservation.
Description of drawings
Fig. 1 is the figure of summary of an embodiment (embodiment 1) of the expression air-conditioner control system of using the air conditioning control method that the present invention relates to.
Fig. 2 is the functional block diagram of major part of the air conditioning control device in the air-conditioner control system of expression embodiment 1.
Fig. 3 is other the figure of summary of embodiment (embodiment 2) of the expression air-conditioner control system of using the air conditioning control method that the present invention relates to.
Fig. 4 is the functional block diagram of major part of the air conditioning control device in the air-conditioner control system of expression embodiment 2.
Fig. 5 is the figure that is illustrated in the setting property II of the setting property I of the feed air temperature that uses in the air-conditioner control system of embodiment 2 and air feed air quantity.
Fig. 6 be with under the lower limit condition with higher of feed air temperature with lower situation under the setting property I of different feed air temperatures and the setting property II of the air feed air quantity figure that compares expression.
Fig. 7 is the figure that expression is arranged on dew point temperature sensor the example on the passing away of discharging exhaust in the data center.
Fig. 8 is that expression is arranged on dew point temperature sensor in the figure that supplies with the example on the feed path of air feed from the investigation mission outside the city or town machine in data center.
Fig. 9 is illustrated under the situation that the investigation mission outside the city or town machine is not set, and dew point temperature sensor is arranged on the figure of the example on the feed path of supplying with open-air in data center.
Figure 10 is the figure that represents the summary of air-conditioner control system in the past.
Symbol description among the figure:
1... data center, 2... air conditioner (cooling device), 2-1... cooling coil, 2-2... fan, INV... frequency converter, 3... frame, 3-1... fan (built-in fans), 4 (4A, 4B) ... air conditioning control device, 5... investigation mission outside the city or town machine, 6... exhaust fan, 7... feed air temperature sensor, 8... refrigerant circulation adjusting device (COMP), 9... dew point temperature sensor, 10... temperature sensor, 401... feed air temperature lower limit calculating part, 402... equipment restriction feed air temperature lower limit storage part, 403... feed air temperature setting value determination section, 404... air feed air quantity setting value determination section, 405...COMPINV efferent, 406... fan INV efferent, 411... feed air temperature lower limit calculating part, 412... equipment restriction feed air temperature lower limit storage part, 413... feed air temperature lower limit determination section, 414... require the temperature storage part, 415... feed air temperature setting value determination section, 416... air feed air quantity setting value determination section, 417...COMPINV efferent, 418... fan INV efferent.
The specific embodiment
With reference to the accompanying drawings embodiments of the present invention are elaborated below.
(embodiment 1)
Fig. 1 is the figure of summary of an embodiment (embodiment 1) of the expression air-conditioner control system of having used the air conditioning control method that the present invention relates to.In the figure, symbolic representation identical and the identical or equal inscape of inscape that illustrated with reference to Figure 10 with Figure 10, and omit its explanation.
In this embodiment 1, be the function that air conditioning control device 4 is had with the difference of system in the past shown in Figure 10.In this embodiment 1, air conditioning control device 4 is made as 4A is different from air conditioning control device in the past the system.
And, in this embodiment 1, in data center 1, be provided with the dew point temperature sensor 9 that is used for the dew-point temperature in the measurement data center 1, be sent to air conditioning control device 4A from the measured value trpv of the dew-point temperature of this dew point temperature sensor 9.
In addition, in this embodiment 1, on the fan 2-2 of air conditioner 2, set up the frequency converter INV that can change its rotating speed, by adjusting air quantity (air feed air quantity) from air conditioning control device 4A to the % value of the frequency converter output (fan INV) of frequency converter INV output that control fan 2-2 from.
Thereby air conditioning control device 4A realizes that by the hardware that is made of processor and storage device with these hardware co-operatings various functional programs realize, the function of setting value with feed air temperature that decision supplies with in data center 1 from air conditioner 2 and air feed air quantity is as the present embodiment functions peculiar.
Fig. 2 has represented the functional block diagram of the major part of air conditioning control device 4A.Below, in conjunction with the function of each one in this functional block diagram, the function of the setting value that air conditioning control device 4A is had, be used to determine feed air temperature and air feed air quantity describes.
Air conditioning control device 4A possesses: feed air temperature lower limit calculating part 401, equipment restriction feed air temperature lower limit storage part 402, feed air temperature setting value determination section 403, air feed air quantity setting value determination section 404, COMPINV efferent 405 and fan INV efferent 406.
In addition, in this embodiment, be to constitute COMPINV efferent 405 and fan INV efferent 406 are arranged among the air conditioning control device 4A, but in the system of reality, the situation that air conditioner 2 is provided with special-purpose controller (not shown) is more, air conditioner 2 is being provided with under the situation of such nonshared control unit, this nonshared control unit is constituted as has COMPINV efferent 405 and fan INV efferent 406.In this case, remove COMPINV efferent 405 and fan INV efferent 406, will send to nonshared control unit by the setting value that feed air temperature sets value determination section 403 and 404 decisions of air feed air quantity setting value determination section from air conditioning control device 4A.
Feed air temperature lower limit calculating part 401 will be from the measured value trpv of the dew-point temperature (indoor dew-point temperature) in the data center 1 of dew point temperature sensor 9 as input, with the measured value trpv of this dew-point temperature and the surplus capacity α addition that is predetermined, thereby calculate the lower limit tsmin1 (tsmin1=trpv+ α) that the feed air temperature of dewfall can not take place in data center 1.That is, calculate the lower limit tsmin1 that can not cause the feed air temperature that in data center 1, dehumidifies (comprising dehumidifying) because of air feed from air conditioner 2 by coil pipe 2-1.In addition, also can be according to indoor CO
2Concentration judges that the number (estimating the amount of moisture of indoor generation) that exists is made as surplus capacity α variable.In addition, except CO
2Concentration can also be held the number of existence according to information such as security systems.
The lower limit tsmin1 of the feed air temperature that feed air temperature setting value determination section 403 will be calculated by feed air temperature lower limit calculating part 401 is as input, the lower limit tsmin1 of this feed air temperature is compared with the equipment restriction feed air temperature lower limit tsmin2 that is stored in the equipment restriction feed air temperature lower limit storage part 402, and the lower limit of the feed air temperature that temperature is higher is as the setting value tssp of feed air temperature.Here, equipment restriction feed air temperature lower limit tsmin2 is meant, is subjected to the lower limit of feed air temperature of the power restriction of air conditioner 2, is the lower limit of the feed air temperature scope of record in the catalogue etc.
The setting value tssp of feed air temperature that air feed air quantity setting value determination section 404 will set value determination section 403 decisions by feed air temperature is as input, according to Qssp (CMH)=rated power (kW) * 3600/{ (supposition inlet temperature-tssp) * proportion (kg/m
3) decide the setting value Qssp of air feed air quantity.In addition, in the calculating formula of the setting value Qssp of this air feed air quantity, " supposition inlet temperature " is meant the inlet temperature of supposing when the specified running of air conditioner 2, inlet temperature when being record in the catalogue etc. specified.In addition, " rated power " is meant the specified cooling power of air conditioner 2.
The measured value tspv of the feed air temperature of to data center 1 in, supplying with that COMPINV efferent 405 will be measured by feed air temperature sensor 7 and by the setting value tssp of the feed air temperature of feed air temperature setting value determination section 403 decisions as input, adjust at the frequency converter of COMP8 and export (COMPINV) so that the setting value tssp of the measured value tspv of feed air temperature and feed air temperature is consistent.
Fan INV efferent 406 will be by the setting value Qssp of the air feed air quantity of air feed air quantity setting value determination section 404 decisions as input, adjusts at the frequency converter output (fan INV) of frequency converter INV so that be Qssp from the air feed air quantity Qs of fan 2-2.
Thus, in the present embodiment, according to the dew-point temperature trpv in the data center 1 of measuring by dew point temperature sensor 9, with the setting value tssp decision of feed air temperature that dewfall can not take place in the data center 1 for alap value, in addition, decision is fit to the setting value Qssp of the air feed air quantity of this feed air temperature setting value tssp, reduce feed air temperature and correspondingly reduce the air feed air quantity, thereby can realize energy-conservation.
In addition, in the present embodiment, when calculating the setting value Qssp of air feed air quantity, can add some surplus capacities in safe range to the setting value Qssp of this air feed air quantity that calculates.Difference according to the load of the electronic equipment of accommodating in the frame 3 has the possibility that overheats in the data center 1, and adds by the setting value Qssp to the air feed air quantity and surplus capacity in some safe rangies can improve the problem that overheats in the data center 1.
(embodiment 2)
Fig. 3 is other the figure of summary of embodiment (embodiment 2) that has used the air-conditioner control system of the air conditioning control method that the present invention relates to.In this embodiment 2, in data center 1, the dew point temperature sensor 9 of the dew-point temperature in being used for measurement data center 1, also be provided with the temperature sensor 10 of the temperature of the entrance side of measuring frame 3 as Current Temperatures, the measured value tpv of the Current Temperatures that the measured value trpv of the dew-point temperature that dew point temperature sensor 9 is measured and temperature sensor 10 are measured is sent to air conditioning control device 4 (4B).
In addition, in this embodiment 2, identical with embodiment 1, on the fan 2-2 of air conditioner 2, set up the frequency converter INV that can change its rotating speed, by adjusting air quantity (air feed air quantity) from air conditioning control device 4B to the % value of the frequency converter output (fan INV) of frequency converter INV output that control fan 2-2 from.
Fig. 4 has represented the functional block diagram of the major part of air conditioning control device 4B.Below in conjunction with the function of each one in this functional block diagram, the function of the decision feed air temperature that air conditioning control device 4B is had and the setting value of air feed air quantity describes.
Air conditioning control device 4B possesses: feed air temperature lower limit calculating part 411, equipment restrict feed air temperature lower limit storage part 412, feed air temperature lower limit determination section 413, require temperature storage part 414, feed air temperature to set value determination section 415, air feed air quantity setting value determination section 416, COMPINV efferent 417 and fan INV efferent 418.In addition, the required value of the Current Temperatures tpv that measures at temperature sensor 10 is used as and requires temperature t sp to be stored in to require in the temperature storage part 414.
The same with the feed air temperature lower limit calculating part 401 in the embodiment 1, the measured value trpv of the dew-point temperature (indoor dew-point temperature) in the data center 1 that feed air temperature lower limit calculating part 411 is measured dew point temperature sensor 9 is as input, with the measured value trpv and the predefined surplus capacity α addition of this dew-point temperature, thereby calculate the lower limit tsmin1 (tsmin1=trpv+ α) that the feed air temperature of dewfall can not take place in data center.
The lower limit tsmin1 of the feed air temperature that feed air temperature lower limit determination section 413 will be calculated by feed air temperature lower limit calculating part 411 is as input, the lower limit tsmin1 of this feed air temperature and the equipment restriction feed air temperature lower limit tsmin2 that is stored in the equipment restriction feed air temperature lower limit storage part 412 are compared, and with the lower limit of the higher feed air temperature lower limit tsmin as feed air temperature.
Feed air temperature setting value determination section 415 will be by the lower limit tsmin of the feed air temperature of feed air temperature lower limit determination section 413 decisions, Current Temperatures tpv that temperature sensor 10 is measured and is stored in and requires to require temperature t sp as input in the temperature storage part 414, and decides the setting value tssp of feed air temperature according to the setting property I of feed air temperature shown in Figure 5.
Promptly, the lower limit tsmin of feed air temperature is used as the control parameter, in the Current Temperatures tpv scope higher than tx, the setting value tssp of feed air temperature is fixed as the lower limit tsmin of feed air temperature, on the other hand, in the Current Temperatures tpv scope lower than tx, along with and require the increase of the difference between the temperature t sp, it is big that the setting value tssp of feed air temperature becomes gradually.
By setting the setting property I of such feed air temperature, thereby if the load in the data center 1 reduces to cause Current Temperatures tpv to become lower than tx, then the setting value tssp of feed air temperature becomes big, and the power of air conditioner 2 descends.Thus, prevented the sub-cooled in the data center 1, thereby realized energy-conservation.
Air feed air quantity setting value determination section 416 will be by the lower limit tsmin of the feed air temperature of feed air temperature lower limit determination section 413 decisions, Current Temperatures tpv that temperature sensor 10 is measured and is stored in and requires to require temperature t sp as input in the temperature storage part 414, and decides the setting value Qssp of air feed air quantity according to the setting property II of air feed air quantity shown in Figure 5.
Promptly, the lower limit tsmin of feed air temperature is used as the control parameter, before the setting value tssp of feed air temperature is fixed to tsmin, the setting value Qssp of air feed air quantity is fixed as the lower limit that is predetermined, on the other hand, after the setting value tssp of feed air temperature is fixed to tsmin, along with and require the increase of the difference between the temperature t sp, it is big that the setting value Qssp of air feed air quantity becomes gradually.
By setting the setting property II of such air feed air quantity, under the less situation of the load in data center 1, the setting value Qssp of air feed air quantity is fixed to lower limit, thereby has realized energy-conservation.On the other hand, thereby cause Current Temperatures tpv to become than tx height if the load in the data center 1 increases, then the setting value Qssp of air feed air quantity becomes big, thereby has prevented heating in the data center 1.
The measured value tspv of the feed air temperature of to data center 1 in, supplying with that COMPINV efferent 417 is measured feed air temperature sensor 7 and by the setting value tssp of the feed air temperature of feed air temperature setting value determination section 415 decisions as input, adjust at the frequency converter of COMP8 and export (COMPINV) so that the measured value tspv of feed air temperature is consistent with the setting value tssp of feed air temperature.
Fig. 6 has represented the setting property I of feed air temperature that the lower limit tsmin of feed air temperature is changed as the control parameter and the setting property II of air feed air quantity.Characteristic I
HAnd II
HThe setting property of the feed air temperature when the lower limit tsmin of expression feed air temperature is higher and the setting property of air feed air quantity, characteristic I
LAnd II
LThe setting property of the feed air temperature when the lower limit tsmin of expression feed air temperature is low and the setting property of air feed air quantity.Variation according to such setting property can be learnt, if reduce the lower limit tsmin of feed air temperature, even require the cold air of same degree, also can suppress air feed air quantity (output of fan INV).
In addition, in above-mentioned embodiment 1,2, be dew point temperature sensor 9 to be set come dew-point temperature in the measuring chamber in data center 1, but also can measure the dew-point temperature from the exhaust in the data center 1 of discharging, can also measure the dew-point temperature of the air feed of in data center 1, supplying with from investigation mission outside the city or town machine 5 by exhaust fan 6.
Promptly, be under the situation of example with embodiment 1, can be as shown in Figure 7, at the passage of discharging exhaust by exhaust fan 6 in the data center 1 dew point temperature sensor 9 is set, and the measured value trpv of the dew-point temperature of measuring according to this dew point temperature sensor 9, calculate the lower limit tsmin1 of feed air temperature, also can be as shown in Figure 8, at the passage of in data center 1, supplying with air feed from investigation mission outside the city or town machine 5 dew point temperature sensor 9 is set, and the measured value trpv of the dew-point temperature of measuring according to this dew point temperature sensor 9, calculate the lower limit tsmin1 of feed air temperature.
In addition, in the above-described embodiment, be provided with investigation mission outside the city or town machine 5, but investigation mission outside the city or town machine 5 not to be provided with.Under the situation that investigation mission outside the city or town machine 5 is not set, can consider for example in embodiment 1, as shown in Figure 9, on the passage of in data center 1, supplying with open-air, dew point temperature sensor 9 is set, and the measured value trpv of the dew-point temperature of measuring according to this dew point temperature sensor 9, calculate the lower limit tsmin1 of feed air temperature.
In addition, in the above-described embodiment, constitute and dew point temperature sensor 9 is set measures dew-point temperature, still, also can constitute the measurement temperature and humidity, and calculate dew-point temperature according to this temperature and humidity of measuring.In the present invention, in the notion of so-called measurement dew-point temperature, also comprise according to the temperature and humidity of measuring and calculate dew-point temperature.
In addition, in the above-described embodiment, refrigerant circulation adjusting device 8 is compressor (COMP), and is still such as described above, can certainly consider to use various operands such as expansion valve, hot gas bypass valve as refrigerant circulation adjusting device 8.
Utilize possibility on the industry
Air conditioning control method of the present invention and device,, the various rooms such as data center that are provided with the electronic equipment such as server can be used as the control object chamber because the feed air temperature that the room that dewfall might produce physically impaired equipment is supplied with from air conditioner to the control object chamber as control object chamber and control and air conditioning control method and the device of air feed air quantity as being provided with.
Claims (6)
1. an air conditioning control method is characterized in that, the room that will be provided with the equipment that might produce physical injury owing to dewfall is as control object chamber, and feed air temperature and air feed air quantity that control is supplied with to this control object chamber from air conditioner comprise:
Measure the step of the dew-point temperature of above-mentioned control object chamber;
According to the above-mentioned dew-point temperature of measuring, calculate step in the lower limit of the indoor above-mentioned feed air temperature that dewfall can not take place of above-mentioned control object;
The lower limit of the feed air temperature that goes out according to aforementioned calculation determines the step of the setting value of above-mentioned feed air temperature; With
The lower limit of the feed air temperature that goes out according to aforementioned calculation determines the step of the setting value of above-mentioned air feed air quantity.
2. air conditioning control method according to claim 1 is characterized in that,
In the step of the setting value that determines above-mentioned feed air temperature, to be subjected to the lower limit of feed air temperature of power restriction of above-mentioned air conditioner as equipment restriction feed air temperature lower limit, and the lower limit of the feed air temperature that this equipment restriction feed air temperature lower limit and aforementioned calculation are gone out compares, and the lower limit of higher feed air temperature is decided to be the setting value of feed air temperature.
3. according to claim 1 or 2 described air conditioning control methods, it is characterized in that,
Substitute to measure above-mentioned control object chamber dew-point temperature step and have the step of measuring from the dew-point temperature of the exhaust of above-mentioned control object chamber, from any one dew-point temperature in the dew-point temperature of the dew-point temperature of the air feed of the investigation mission outside the city or town machine of open-air being handled and being supplied with to above-mentioned control object chamber and open-air.
4. an air conditioning control device is characterized in that, the room that will be provided with the equipment that might produce physical injury owing to dewfall is as control object chamber, and feed air temperature and air feed air quantity that control is supplied with to this control object chamber from air conditioner possess:
The dew point temperature measurements unit, it measures the dew-point temperature of above-mentioned control object chamber;
Feed air temperature lower limit computing unit, it calculates the lower limit that the above-mentioned feed air temperature of dewfall can not take place according to the above-mentioned dew-point temperature of measuring in above-mentioned object control room;
Feed air temperature setting value decision unit, the lower limit of the feed air temperature that it goes out according to aforementioned calculation determines the setting value of above-mentioned feed air temperature; With
Air feed air quantity setting value decision unit, the lower limit of the feed air temperature that it goes out according to aforementioned calculation determines the setting value of above-mentioned air feed air quantity.
5. air conditioning control device according to claim 4 is characterized in that,
The lower limit that above-mentioned feed air temperature sets value the feed air temperature of the power restriction that determines the unit will be subjected to above-mentioned air conditioner restricts the feed air temperature lower limit as equipment, and the lower limit of the feed air temperature that this equipment restriction feed air temperature lower limit and aforementioned calculation are gone out compares, and the lower limit decision of higher feed air temperature is the setting value of feed air temperature.
6. according to claim 4 or 5 described air conditioning control devices, it is characterized in that,
Substitute to measure above-mentioned control object chamber dew-point temperature the dew point temperature measurements unit and possess the dew point temperature measurements unit of measuring from the dew-point temperature of the exhaust of above-mentioned control object chamber, from any one dew-point temperature in the dew-point temperature of the dew-point temperature of the air feed of the investigation mission outside the city or town machine of open-air being handled and being supplied with to above-mentioned control object chamber and open-air.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-021932 | 2010-02-03 | ||
| JP2010021932A JP5478286B2 (en) | 2010-02-03 | 2010-02-03 | Air conditioning control method and apparatus |
Publications (2)
| Publication Number | Publication Date |
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| CN102141288A true CN102141288A (en) | 2011-08-03 |
| CN102141288B CN102141288B (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110034628.XA Expired - Fee Related CN102141288B (en) | 2010-02-03 | 2011-01-30 | Air-conditioning controlling method and device |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20110186643A1 (en) |
| JP (1) | JP5478286B2 (en) |
| KR (1) | KR101171583B1 (en) |
| CN (1) | CN102141288B (en) |
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| CN104236012A (en) * | 2013-06-12 | 2014-12-24 | 松下电器产业株式会社 | Environmental determination system, environment determination method and equipment selection device |
| CN105276742A (en) * | 2014-07-15 | 2016-01-27 | 阿自倍尔株式会社 | Room pressure controlling system and room pressure controlling method |
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| JP5966327B2 (en) * | 2011-11-14 | 2016-08-10 | ダイキン工業株式会社 | Air conditioning indoor unit |
| US9188993B2 (en) * | 2012-11-02 | 2015-11-17 | Johnson Controls Technology Company | Systems and methods for sensing dew point in a building space |
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Also Published As
| Publication number | Publication date |
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| KR101171583B1 (en) | 2012-08-09 |
| US20110186643A1 (en) | 2011-08-04 |
| CN102141288B (en) | 2015-03-18 |
| KR20110090744A (en) | 2011-08-10 |
| JP5478286B2 (en) | 2014-04-23 |
| JP2011158219A (en) | 2011-08-18 |
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