CN205156456U - Terminal energy -saving control device of data center air conditioner - Google Patents
Terminal energy -saving control device of data center air conditioner Download PDFInfo
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- CN205156456U CN205156456U CN201520805090.1U CN201520805090U CN205156456U CN 205156456 U CN205156456 U CN 205156456U CN 201520805090 U CN201520805090 U CN 201520805090U CN 205156456 U CN205156456 U CN 205156456U
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Abstract
The utility model provides a terminal energy -saving control device of data center air conditioner is used at the data center air conditioner end that comprises cold water coil pipe, fan, governing valve, speed governing final controlling element, refrigerated water water intake pipe, refrigerated water outlet pipe way, air supply passage and return air passageway etc. Structurally. The energy -saving control device includes: air supply temperature sensor, air supply static pressure sensor, return air temperature sensor, optimal control module, air supply temperature control module, static pressure control module etc.. The utility model discloses not only can improve air return temperature control accuracy, avoid local focus and control air supply temperature interval at green and safe, the energy consumption that can also save the terminal fan of data center air conditioner promotes whole water -cooling air conditioning system's efficiency.
Description
Technical field
The utility model relates to the Energy Saving Control of data center's air-conditioning system, is specifically related to the energy-saving control device that one is referred to as data center's air conditioning terminal of " air conditioner in machine room " usually.
Background technology
The thermal environment that data center's air conditioning terminal provides for machine room information technoloy equipment.Account for about 40% in the consumption of typical consumption of data center structure hollow adjusting system, wherein data center's air conditioning terminal accounts for about 10%.In water cooling air conditioning system, the operating condition of data center's air conditioning terminal not only concerns the energy consumption that body efficiency also affects low-temperature receiver end refrigeration station.
Described data center air conditioning terminal take chilled water as cooling medium, heat exchange is carried out by cooling coil and air, be applied in a kind of air-conditioning of data center machine room, its operation principle is: the chilled water transported by low-temperature receiver end enters coil pipe and cools hot-air (return air), blower fan is transported to machine room information technoloy equipment end cooled cold air (air-supply), cold air cools the load equipment (information technoloy equipment) running heating, the hot air reflow of high temperature is become to data center's air conditioning terminal after cooling, circulation like this, continuous maintenance information technoloy equipment normally runs required thermal environment.
Existing data center air conditioning terminal control method mainly contains: return air temperature control methods and wind pushing temperature control methods.Return air temperature control methods reaches return air temperature setting value by regulating chilled-water flow to control return air temperature, and control device structure as shown in Figure 2.Wind pushing temperature control methods reaches wind pushing temperature setting value by regulating chilled-water flow to control wind pushing temperature, and control device structure as shown in Figure 3.
The control principle of return air temperature control methods: return air temperature sensor 208 monitors return air temperature, return air temperature signal 214 reaches return air temperature controller 211, return air temperature controller 211 compares return air temperature value and compares with return air temperature setting value, freezing water valve controlled quentity controlled variable value is calculated by PI/PID, drive chilled water valve actuator 203 to regulate the freezing water yield by freezing water valve controlled quentity controlled variable signal 215, it is constant in return air temperature setting value that circulation performs maintenance return air temperature; Static pressure sensor 210 monitors air-supply static pressure, air-supply static pressure signal 217 reaches staticaccelerator pressure controller 213, staticaccelerator pressure controller 213 compares static pressure and compares with static pressure setting value, Boiler pressure control value is calculated by PI/PID, drive fan speed regulation actuating unit 219 to regulate fan delivery by Boiler pressure control amount signal 218, it is constant in static pressure setting value that circulation performs maintenance static pressure.
The control principle of wind pushing temperature control methods: wind pushing temperature sensor 309 monitors wind pushing temperature, blast temperature signals 320 reaches wind pushing temperature controller 312, wind pushing temperature controller 312 compares wind pushing temperature value and compares with wind pushing temperature setting value, freezing water valve controlled quentity controlled variable value is calculated by PI/PID, drive chilled water valve actuator 303 to regulate the freezing water yield by freezing water valve controlled quentity controlled variable signal 321, it is constant in wind pushing temperature setting value that circulation performs maintenance wind pushing temperature; Static pressure sensor 310 monitors air-supply static pressure, air-supply static pressure signal 317 reaches staticaccelerator pressure controller 313, staticaccelerator pressure controller 313 compares static pressure and compares with static pressure setting value, Boiler pressure control value is calculated by PI/PID, drive fan speed regulation actuating unit 319 to regulate fan delivery by Boiler pressure control amount signal 318, it is constant in static pressure setting value that circulation performs maintenance static pressure.
The main weak point of above-mentioned two kinds of existing control methods is: 1. can only control a temperature, or only have return air temperature to control, or only have wind pushing temperature to control, and the change of another temperature uncontrollable, on the impact of controlled environment, easily occurs hot localised points; 2. static pressure control loop regulates air quantity and temperature control loop regulating pondage, and two control loops are separate, " doing things in his own way ", can not coordinate water side and the optimization of air side efficiency; 3. the desired temperature (return air temperature setting value or wind pushing temperature setting value) of temperature control loop, the static pressure setting value of static pressure control loop are constant in program inside, load variations can not be followed and dynamic adjustments, when making operation at part load, superfluous, the temperature difference of cold glides, and seriously reduces system energy efficiency.
Utility model content
The utility model provides the energy-saving control device of a kind of data center air conditioning terminal, its objective is and improves Thermal Environment Control effect, saves data center's air conditioning terminal fan energy consumption, reduces low-temperature receiver end energy consumption.
The energy-saving control device of data center's air conditioning terminal, be applied in data center's air conditioning terminal structure of being made up of chilled water coil, blower fan, control valve, speed governing actuating unit, chilled water inlet pipeline, chilled water outlet pipeline, air-supply passage and return air channel etc., the utility model energy-saving control device comprises:
Wind pushing temperature sensor, is installed on the air outlet place of blower fan, for obtaining wind pushing temperature value;
Air-supply static pressure transducer, is installed between the air outlet of blower fan and the air inlet of load equipment, for obtaining static pressure;
Return air temperature sensor, is installed on the air outlet place of load equipment, for obtaining return air temperature value.
Optimal control module, for carrying out integration to the difference of return air temperature value and return air temperature setting value, real-time acquisition refrigeration demand amount ratio, and according to wind pushing temperature setting value restrained boundary, static pressure setting value restrained boundary and refrigeration demand amount than calculating new wind pushing temperature setting value and static pressure setting value;
Wind pushing temperature control module, calculates and exports controlled quentity controlled variable regulate chilled-water flow according to coming wind pushing temperature setting value that self-optimizing control module exports and the wind pushing temperature value of feedback, reach to control wind pushing temperature and maintain wind pushing temperature setting value;
Static prestressed-pile module, calculates according to the static pressure of the static pressure setting value and feedback of carrying out the output of self-optimizing control module and exports the rotating speed that controlled quentity controlled variable drives speed governing actuating unit adjustment blower fan, reach to control static pressure and maintain static pressure setting value.
The beneficial effects of the utility model are: 1. Real-time Obtaining refrigeration requirement; 2. return air temperature is controlled accurately; 3. wind pushing temperature is controlled accurately interval in safety (green); 4. by dynamic adjustments air-supply static pressure setting value, air-conditioning draught fan energy consumption is reduced; 5. pass through according to refrigeration capacity requirement than dynamic adjustments wind pushing temperature and static pressure setting value, the return air temperature value that accurate control is higher, can avoid the water side temperature difference to glide, can also improve chilled water return water temperature, thus extend nature cooling duration, make full use of natural cooling source and energy-conservation; 6., under part load ratio, refrigeration capacity requirement is than little, and wind pushing temperature setting is higher, can improve water side chilled water supply water temperature, thus energy-conservation by lifting cold efficiency.
By the utility model compared with prior art, also there is following difference:
1, the utility model has control to return air temperature, static pressure and wind pushing temperature;
2, the utility model resets the wind pushing temperature setting value of wind pushing temperature module and the static pressure setting value of Static prestressed-pile module by optimizing module;
3, the utility model wind pushing temperature setting value is not a changeless value, but the interval in setting restrained boundary, the wind pushing temperature setting value value in the wind pushing temperature control module current execution cycle is the wind pushing temperature setting value transmitted by optimal control module in a upper cycle;
4, the utility model static pressure setting value is not a changeless value, but the interval in setting restrained boundary, the static pressure setting value value in the Static prestressed-pile module current execution cycle is the static pressure setting value transmitted by optimal control module in a upper cycle;
5, the control of the utility model return air temperature is not directly rely on regulate chilled water valve opening and change chilled-water flow to realize, but by changing wind pushing temperature setting value and static pressure setting value, indirectly changes chilled-water flow and air quantity and realizes.
In sum, the beneficial effects of the utility model are not only to improve return air temperature control accuracy, avoid hot localised points and control wind pushing temperature interval at green safety, also be the energy consumption can saving data center's air conditioning terminal blower fan, the efficiency of whole water cooling air conditioning system can also be promoted.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the utility model control device.
Fig. 2 is the principle schematic one of existing control device.
Fig. 3 is the principle schematic two of existing control device.
In Fig. 1: chilled water coil 101, blower fan 102, control valve 103, chilled water water inlet 104, chilled water water outlet 105, air-supply 106, return air 107, return air temperature sensor 108, wind pushing temperature sensor 109, air-supply static pressure transducer 110, optimal control module 111, wind pushing temperature control module 112, Static prestressed-pile module 113, return air temperature value 114, wind pushing temperature setting value 115, static pressure setting value 116, static pressure 117, fan frequency conversion controlled quentity controlled variable 118, speed governing actuating unit 119, wind pushing temperature value 120, freezing water valve controlled quentity controlled variable 121.
In Fig. 2: chilled water coil 201, blower fan 202, control valve 203, chilled water water inlet 204, chilled water water outlet 205, air-supply 206, return air 207, return air temperature sensor 208, air-supply static pressure transducer 210, return air temperature control module 211, Static prestressed-pile module 213, return air temperature value 214, wind pushing temperature setting value 215, static pressure 217, fan frequency conversion controlled quentity controlled variable 218, speed governing actuating unit 219, freezing water valve controlled quentity controlled variable 221.
In Fig. 3: chilled water coil 301, blower fan 302, control valve 303, chilled water water inlet 304, chilled water water outlet 305, air-supply 306, return air 307, wind pushing temperature sensor 309, air-supply static pressure transducer 310, wind pushing temperature control module 312, Static prestressed-pile module 313, wind pushing temperature setting value 315, static pressure setting value 316, static pressure .317, fan frequency conversion controlled quentity controlled variable 318, speed governing actuating unit 319, wind pushing temperature value 320, freezing water valve controlled quentity controlled variable 321.
Detailed description of the invention
The energy-saving control device of data center's air conditioning terminal as shown in Figure 1, be applied in data center's air conditioning terminal structure of being made up of chilled water coil 101, blower fan 102, control valve 103, speed governing actuating unit 119, chilled water inlet pipeline, chilled water outlet pipeline, air-supply passage and return air channel etc., the utility model energy-saving control device comprises:
Wind pushing temperature sensor 109, is installed on the air outlet place of blower fan 102, for obtaining wind pushing temperature value 120;
Air-supply static pressure transducer 110, is installed between the air outlet of blower fan 102 and the air inlet of load equipment 122, for obtaining static pressure 117;
Return air temperature sensor 108, is installed on the air outlet place of load equipment 122, for obtaining return air temperature value 114.
Optimal control module 111, for carrying out integration to the difference of return air temperature value 114 and return air temperature setting value, real-time acquisition refrigeration demand amount ratio, and according to wind pushing temperature setting value restrained boundary, static pressure setting value restrained boundary and refrigeration demand amount than calculating new wind pushing temperature setting value 115 and static pressure setting value 116;
Wind pushing temperature control module 112, calculate according to the wind pushing temperature value 120 of the wind pushing temperature setting value 115 and feedback of carrying out self-optimizing control module 111 output and export controlled quentity controlled variable and regulate chilled-water flow, reach to control wind pushing temperature and maintain wind pushing temperature setting value 115;
Static prestressed-pile module 113, calculate according to coming self-optimizing control module 111 the static pressure setting value 116 exported and the static pressure 117 fed back and export the rotating speed that controlled quentity controlled variable driving speed governing actuating unit 119 regulates blower fan 102, reach to control static pressure and maintain static pressure setting value 116.
The control method of the energy-saving control device of above-mentioned data center air conditioning terminal, adopts following flow and method:
A () return air temperature sensor 108 detects return air temperature value 114, return air temperature value 114 transfers to optimal control module 111;
B the difference of () optimal control module 111 pairs of return air temperature values 114 and return air temperature setting value carries out integration, obtain refrigeration demand amount ratio in real time;
C () optimal control module 111 calculates new wind pushing temperature setting value 115 and static pressure setting value 116 according to wind pushing temperature setting value restrained boundary, static pressure setting value restrained boundary and refrigeration demand amount ratio;
D () wind pushing temperature control module 112 calculates according to the wind pushing temperature value 120 of the wind pushing temperature setting value 115 and feedback of carrying out self-optimizing control module 111 output and exports controlled quentity controlled variable and regulates chilled-water flow, reach to control wind pushing temperature and maintain wind pushing temperature setting value 115;
(e) Static prestressed-pile module 113, calculate according to coming self-optimizing control module 111 the static pressure setting value 116 exported and the static pressure 117 fed back and export the rotating speed that controlled quentity controlled variable driving speed governing actuating unit 119 regulates blower fan 102, reach to control static pressure and maintain static pressure setting value 116.
Described wind pushing temperature setting value restrained boundary refers to the highest and minimum wind pushing temperature setting value of permission set.
Described air-supply static pressure setting value restrained boundary refers to the highest and minimum static pressure setting value of permission set.
Described refrigeration capacity requirement, according to following formulae discovery:
[γ]＝∫([RAT]-[RAT.set])；
Described wind pushing temperature setting value, preferably, according to following formulae discovery:
[SAT.sp]＝[SAT.sp.max]，0≤[γ]＜[α1]；
[SAT.sp]＝[SAT.sp.max]-([SAT.sp.max]-[SAT.sp.min])*([γ]-[α1])/([α2]-[α1])，[α1]≤[γ]＜[α2]；
[SAT.sp]＝[SAT.sp.min]，0≤[γ]＜[α2]；
Described static pressure setting value, preferably, according to following formulae discovery:
[P.sp]＝[P.sp.min]+([P.sp.opt]-[P.sp.min])*[γ]/[α1]，0≤[γ]＜[α1]；
[P.sp]＝[P.sp.opt]，[α1]≤[γ]＜[α2]；
[P.sp]＝[P.sp.opt]+(1-[P.sp.opt])*([γ]-[α2])/(1-[α2])，0≤[γ]＜[α2]；
In above-mentioned formula,
[SAT.sp]: wind pushing temperature setting value, DEG C;
[SAT.sp.max]: the highest wind pushing temperature setting value, DEG C;
[SAT.sp.min]: minimum wind pushing temperature setting value, DEG C;
[γ]: refrigeration capacity requirement ratio, [0,1];
[α 1]: parameter, [0,1], [α 1] < [α 2];
[α 2]: parameter, [0,1], [α 1] < [α 2];
[P.sp]: static pressure duty setting signal;
[P.sp.min]: Minimum Static is installed with set value signal;
[P.sp.opt]: optimize static pressure setting value.
The utility model is when applying, the chilled water 104 that low-temperature receiver end transports flows through freezing water valve 103 and enters coil pipe and cool hot-air (return air) 107, blower fan 102 is transported to load equipment (information technoloy equipment) 205 end cooled cold air (air-supply) 106, cold air cools the load equipment (information technoloy equipment) running heating, take away heat, the hot-air (return air) 107 becoming high temperature is back to data center's air conditioning terminal, circulation like this, dynamic adjustments controls, and constantly maintains information technoloy equipment and normally runs required thermal environment.
Apply control method described in the utility model and can make air output dynamically matched load change, thus save data center's air conditioning terminal fan energy consumption widely; Can effectively promote chilled water return water temperature, and then nature cooling duration can be extended, reduce cold service time; By promoting chilled water supply water temperature, cold efficiency can also be improved, thus saves cold energy consumption.
Claims (1)
1. the energy-saving control device of data center's air conditioning terminal, be applied in data center's air conditioning terminal structure of being made up of chilled water coil (101), blower fan (102), control valve (103), speed governing actuating unit (119), chilled water inlet pipeline, chilled water outlet pipeline, air-supply passage and return air channel, it is characterized in that the utility model energy-saving control device comprises:
Wind pushing temperature sensor (109), is installed on the air outlet place of blower fan (102), for obtaining wind pushing temperature value (120);
Air-supply static pressure transducer (110), is installed between the air outlet of blower fan (102) and load equipment (122) air inlet, for obtaining static pressure (117);
Return air temperature sensor (108), is installed on the air outlet place of load equipment (122), for obtaining return air temperature value (114);
Optimal control module (111), for carrying out integration to return air temperature value (114) and the difference of return air temperature setting value, real-time acquisition refrigeration demand amount ratio, and according to wind pushing temperature setting value restrained boundary, static pressure setting value restrained boundary and refrigeration demand amount than calculating new wind pushing temperature setting value (115) and static pressure setting value (116);
Wind pushing temperature control module (112), calculate according to the wind pushing temperature value (120) coming wind pushing temperature setting value (115) that self-optimizing control module (111) exports and feedback and export controlled quentity controlled variable and regulate chilled-water flow, reach to control wind pushing temperature and maintain wind pushing temperature setting value (115);
Static prestressed-pile module (113), static pressure (117) according to coming static pressure setting value (116) that self-optimizing control module (111) exports and feedback calculates and exports the rotating speed that controlled quentity controlled variable drives speed governing actuating unit (119) adjustment blower fan (102), reaches to control static pressure and maintains static pressure setting value (116).
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| CN201520805090.1U CN205156456U (en) | 2015-10-19 | 2015-10-19 | Terminal energy -saving control device of data center air conditioner |
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| CN201520805090.1U CN205156456U (en) | 2015-10-19 | 2015-10-19 | Terminal energy -saving control device of data center air conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222439A (en) * | 2015-10-19 | 2016-01-06 | 北京捷通机房设备工程有限公司 | Data center's air conditioning terminal energy-saving control device and control method |
| CN107726491A (en) * | 2016-08-12 | 2018-02-23 | 维谛技术有限公司 | A kind of new heat pipe computer-room air conditioning system and its operation method |
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2015
- 2015-10-19 CN CN201520805090.1U patent/CN205156456U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222439A (en) * | 2015-10-19 | 2016-01-06 | 北京捷通机房设备工程有限公司 | Data center's air conditioning terminal energy-saving control device and control method |
| CN107726491A (en) * | 2016-08-12 | 2018-02-23 | 维谛技术有限公司 | A kind of new heat pipe computer-room air conditioning system and its operation method |
| CN107726491B (en) * | 2016-08-12 | 2020-02-18 | 维谛技术有限公司 | Novel heat pipe machine room air conditioning system and operation method thereof |
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Address after: 100015 building 108, 10 Jiuxianqiao North Road, Chaoyang District, Beijing. Patentee after: Czech wisdom Polytron Technologies Inc Address before: 100015 building 108, 10 Jiuxianqiao North Road, Chaoyang District, Beijing. Patentee before: Beijing Jie Tong calculator room equipment Engineering Co., Ltd |
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| CP01 | Change in the name or title of a patent holder |