CN105650838A - Energy-saving control system for data center - Google Patents
Energy-saving control system for data center Download PDFInfo
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- CN105650838A CN105650838A CN201610100545.9A CN201610100545A CN105650838A CN 105650838 A CN105650838 A CN 105650838A CN 201610100545 A CN201610100545 A CN 201610100545A CN 105650838 A CN105650838 A CN 105650838A
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- 238000005057 refrigeration Methods 0.000 claims abstract description 58
- 239000000498 cooling water Substances 0.000 claims abstract description 44
- 239000003507 refrigerant Substances 0.000 claims abstract description 29
- 239000012530 fluid Substances 0.000 claims description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 238000001816 cooling Methods 0.000 claims description 30
- 239000007921 spray Substances 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000007791 dehumidification Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000004378 air conditioning Methods 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 12
- 230000005484 gravity Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000006200 vaporizer Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
Classifications
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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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an energy-saving control system for a data center. The energy-saving control system comprises an indoor unit, a refrigeration cycle module and a controller. The refrigeration cycle module comprises equipment arranged on the indoor side, and the equipment comprises a liquid storage tank and a heat exchanger, wherein the liquid storage tank is connected with the indoor unit and used for storing refrigerants, and the heat exchanger is used for carrying out input and output heat exchange. The indoor unit, the liquid storage tank and the heat exchanger are connected through header pipes. The refrigeration cycle module comprises equipment arranged on the outdoor side, and the equipment comprises a first cooling water pump, a first electric three-way valve and a first condenser, wherein the first cooling water pump, the first electric three-way valve and the first condenser are sequentially connected and then connected into the heat exchanger. By fully utilizing natural cold sources and adopting an intelligent control mode, the series of problems that air conditioner energy consumption is high, indoor temperature and humidity control is difficult, cold sources cannot be backed up, and low-load dehumidification is difficult are solved, the effect that products in the data center normally and stably operate all year round is ensured, the energy efficiency ratio and reliability of an air conditioner system are improved, and the PUE value of a machine room is effectively decreased.
Description
Technical field
The present invention relates to data center apparatus and control technical field, in particular a kind of data center energy-saving control system.
Background technology
Data center is the basis of the information industry development, and the market demand is huge, and data center is the data center of a kind of integrated electric power system, refrigeration system, cabinet system and management system. In the data at heart, the energy consumption of air-conditioning account for more than the 40% of total energy consumption, occupies sizable proportion, therefore, for the manager of data center, how effectively to reduce air conditioning energy consumption and become current a great problem, be air conditioner industry and a major issue that data center module operator faces. On the other hand, the humiture how controlling data center machine room is stable, has also become the problem that air-conditioning manufacturer needs solution badly. Data center's energy saving solution conventional in the market mainly has following several:
Fluorine pump+dry and cold device, advantage be outdoor temperature low time, natural cooling source can be adopted, shortcoming is that indoor cannot be carried out relative humidity control, and cannot adopt mixed model at transition season, and mode is comparatively single.
Heat pipe backboard air-conditioning+plate type heat exchanger, advantage is that air supplying distance is short, heat exchange efficiency is high, available natural cooling source, shortcoming is to be difficult to humid control, and installation pipeline is many, secondary refrigerant leakage risk is high, and backup functionality is limited, the application scenario that scheming room is larger in the data simultaneously, rely on gravity that enough power cannot be provided effectively to be circulated refrigeration.
The new wind of assembled air-conditioner+wet film, advantage is that refrigerating efficiency is high, initial cost is few, after shortcoming is introduced into outdoor Cryogenic air so that room air cleanliness factor, humidity are difficult to ensure that, there is humiture hidden danger out of control, and later stage operation maintenance amount is big.
Therefore, prior art awaits further improvement.
Summary of the invention
In view of above-mentioned weak point of the prior art, it is an object of the invention to provide the user a kind of data center energy-saving control system, overcome the energy-saving air conditioning system of data center in prior art to be difficult to defect humidity being controlled and control mode is single.
This invention address that the technical scheme that technical problem adopts is as follows:
A kind of data center energy-saving control system, wherein, including:
For reducing some indoor sets of room temperature to indoor air-supply;
For realizing the kind of refrigeration cycle module of refrigerant cycle;
For the controller that indoor temperature and humidity are controlled;
Described indoor set, kind of refrigeration cycle module and controller are sequentially connected with;
The equipment being disposed in the interior side in described kind of refrigeration cycle module includes:
Be connected with described indoor set storage cold-producing medium fluid reservoir and for carrying out the First Heat Exchanger of input and output heat exchange; Described indoor set, fluid reservoir are connected by header with First Heat Exchanger;
The equipment being disposed in the outdoor side includes: the first cooling water pump, the first electric T-shaped valve and the first condenser, after described first cooling water pump, the first electric T-shaped valve and the first condenser are sequentially connected with, accesses First Heat Exchanger.
Described data center energy-saving control system, wherein, the equipment being disposed in the interior side in described kind of refrigeration cycle module also includes: the first handpiece Water Chilling Units and the first check valve;
Described first handpiece Water Chilling Units is connected with the first check valve, after being connected side by side with described first condenser, after connecting with the first electric T-shaped valve, the first cooling water pump, accesses described First Heat Exchanger.
Described data center energy-saving control system, wherein, described fluid reservoir is also associated with refrigerated medium pump and electric two-way valve.
A kind of data center energy-saving control system, wherein, including:
For reducing some indoor sets of room temperature to indoor air-supply;
For realizing the kind of refrigeration cycle module of refrigerant cycle;
For the controller that indoor temperature and humidity are controlled;
Described indoor set, kind of refrigeration cycle module and controller are sequentially connected with;
The equipment being disposed in the interior side in described kind of refrigeration cycle module includes:
The fluid reservoir of the storage cold-producing medium being connected with described indoor set;
Described indoor set is connected by header with fluid reservoir;
The equipment being disposed in the outdoor side includes: for carrying out the First Heat Exchanger of input and output heat exchange, the second electric T-shaped valve, the first cooling water pump and the first condenser, and described first cooling water pump and the first condenser access First Heat Exchanger after connecting.
Described data center energy-saving control system, wherein, is additionally provided with between described fluid reservoir and indoor set: cooling backup units;
Described cooling backup units includes: the second check valve and the second condenser;
One end of described second condenser is by the entrance of the second electric T-shaped valve access First Heat Exchanger, and the other end of described second condenser and the second check valve access the outlet of First Heat Exchanger after being connected.
Described data center energy-saving control system, wherein, described fluid reservoir is also associated with refrigerated medium pump and electric two-way valve.
A kind of data center energy-saving control system, wherein, including:
For reducing some indoor sets of room temperature to indoor air-supply;
For realizing the kind of refrigeration cycle module of refrigerant cycle;
For the controller that indoor temperature and humidity are controlled;
Described indoor set, kind of refrigeration cycle module and controller are sequentially connected with;
The equipment being disposed in the interior side in described kind of refrigeration cycle module includes: the fluid reservoir of the storage cold-producing medium being connected with described indoor set;
Described indoor set is connected by header with fluid reservoir;
The equipment being disposed in the outdoor side in described kind of refrigeration cycle module includes: the 3rd condenser and the second electric T-shaped valve;
Described 3rd condenser and the second electric T-shaped valve access fluid reservoir after connecting.
Described data center energy-saving control system, wherein, the equipment being disposed in the outdoor side in described kind of refrigeration cycle module also includes:
Second heat exchanger, the second handpiece Water Chilling Units, the 3rd check valve and the second cooling water pump;
After described second handpiece Water Chilling Units is connected with the second cooling water pump, access the second heat exchanger, the arrival end of described second heat exchanger and the second electric T-shaped valve are connected, and described second heat exchanger exit end and the 3rd check valve are connected between the second electric T-shaped valve and fluid reservoir after connecting.
Described data center energy-saving control system, wherein, described 3rd condenser includes: condenser fan and condenser coil;
It is arranged above spray equipment at described condenser coil;
Described spray equipment includes: injection spray pipe and electromagnetic valve; Described electromagnetic valve is connected with controller, opens and closes for the instruction according to controller, it is achieved the control whether injection spray pipe is sprayed.
Described data center energy-saving control system, wherein, described fluid reservoir is also associated with refrigerated medium pump and electric two-way valve.
Beneficial effect, the invention provides a kind of data center energy-saving control system, including: some indoor sets, for realizing the kind of refrigeration cycle module of refrigerant cycle and the controller for indoor temperature and humidity are controlled; Described indoor set, kind of refrigeration cycle module and controller are sequentially connected with; The equipment being disposed in the interior side in described kind of refrigeration cycle module includes: be connected with described indoor set storage cold-producing medium fluid reservoir and for carrying out the heat exchanger of input and output heat exchange; Described indoor set, fluid reservoir are connected by header with heat exchanger; The equipment being disposed in the outdoor side includes: the first cooling water pump, the first electric T-shaped valve and the first condenser, after described first cooling water pump, the first electric T-shaped valve and the first condenser are sequentially connected with, accesses heat exchanger. By making full use of natural cooling source, with intelligentized control mode, solve a series of knotty problems such as air conditioning energy consumption is high, indoor temperature and humidity controls difficulty, low-temperature receiver cannot back up, low load dehumidifying is difficult, guarantee that the long-term normal table of data center products runs, it is truly realized the high energy efficiency ratio of air conditioning system, high reliability, effectively reduces machine room PUE value.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of data center of present invention energy-saving control system first embodiment.
Fig. 2 is the structural representation of a kind of data center of present invention energy-saving control system the second embodiment.
Fig. 3 is the structural representation of a kind of data center of present invention energy-saving control system the 3rd embodiment.
Detailed description of the invention
For making the purpose of the present invention, technical scheme and advantage clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment. Should be appreciated that specific embodiment described herein is used only for explaining the present invention, be not intended to limit the present invention.
Application scenario for data center, single rack heat load scope is from several hectowatts to several kilowatts, the server cabinet of the on-the-spot existing high heat density of applied environment, also there is the server cabinet of low-load, depend on the server number of applications of client, and in data center, the existing requirement to temperature, also having the requirement to humidity, therefore the control of humiture is also a great problem. Data center comes into operation preliminary stage, and server load is few, and when low-load, humid control problem is difficult to solve; The simultaneously power consumption of air-conditioning in occupation of the ratio of about 40%, and in the market for the refrigeration solution of energy-conservation this part, cannot take into account again this problem that Temperature and Humidity Control is stable in whole power consumption of data center.For data center's air conditioning system schemes in short supply in the deficiency of above-mentioned refrigeration solution and market, multiple energy-saving air conditioning system scheme and diversified indoor set application mode that this patent provides, these problems can be solved well.
As it is shown in figure 1, be the system structure schematic diagram of a kind of data center provided by the present invention energy-saving control system first embodiment, as it can be seen, comprising:
For reducing some the indoor sets 9 of room temperature to indoor air-supply;
For realizing the kind of refrigeration cycle module of refrigerant cycle;
For the controller that indoor temperature and humidity are controlled;
Described indoor set 9, kind of refrigeration cycle module and controller are sequentially connected with;
The equipment being disposed in the interior side in described kind of refrigeration cycle module includes:
Be connected with described indoor set 9 storage cold-producing medium fluid reservoir 15 and for carrying out the heat exchanger 1 of input and output heat exchange; Described indoor set 9, fluid reservoir 15 and First Heat Exchanger 1 are connected by header (12 is the outlet pipe of header as shown in the figure, it is shown that 13 is the water inlet pipe of header);
The equipment being disposed in the outdoor side includes: the first cooling water pump the 2, first electric T-shaped valve 3 and the first condenser 5, after described first cooling water pump the 2, first electric T-shaped valve 3 and the first condenser 5 are sequentially connected with, accesses heat exchanger 1.
The equipment being disposed in the interior side in described kind of refrigeration cycle module also includes: the first handpiece Water Chilling Units and the first check valve 16; Described first handpiece Water Chilling Units 8 is connected with the first check valve, after being connected side by side with described first condenser 5, after connecting with first electric T-shaped valve the 3, first cooling water pump 2, accesses described First Heat Exchanger 1.
It is envisioned that in order to realize the more Based Intelligent Control of cold-producing medium in fluid reservoir, it is also possible to arrange and described fluid reservoir is connected with refrigerated medium pump and electric two-way valve, the flow of wherein cold-producing medium is carried out Based Intelligent Control.
Being described in more details for energy-saving air conditioning system first embodiment of the present invention, in conjunction with such as figure, to it, specifically application and control mode resolve below.
In use, when data center machine room scale is less or load is less, rack quantity is relatively fewer, indoor set 9 can be selected for heat pipe application mode. Indoor heat transferring medium is cold-producing medium, and outside heat transferring medium is cooling water, and both carry out heat conversion by heat exchanger 1. Indoor recuperated cycle is: fluid reservoir 15 �� collector tube (enters) 11 �� indoor set, 9 �� collector tube (going out) 12 �� First Heat Exchanger, 1 �� fluid reservoir 12, completes an indoor recuperated cycle. Fluid reservoir 12 stores a certain amount of liquid refrigerant, it is ensured that flowing to vaporizer is pure cryogenic liquid refrigerants, improves heat exchange efficiency.
When client's initial stage load is less, indoor set refrigeration capacity requirement is less, now controller intelligent decision refrigeration demand, cooling water temperature is controlled by the first cooling water pump 2 and frequency conversion condenser fan 4 outside control room, the cold-producing medium carrying out heat exchange at First Heat Exchanger 1 is made to meet refrigeration capacity requirement with cooling water, and the blower fan 14 variable ratio frequency changer output different rotating speeds of indoor set is (owing to heat pipe leans against cooling machine cabinet, employing axial flow blower is more energy efficient), control refrigerating capacity output further, meet actual loading refrigeration requirement, it is ensured that server operating temperature is stable.
When data center machine room envionmental humidity is higher than humidity set threshold values, need to dehumidify, controller output dehumidification, blower fan 14 intelligence of indoor set reduces air quantity, first cooling water pump 2 and condenser fan 4 improve rotating speed, reduce circulating cooling coolant-temperature gage, flow through the liquid refrigerant temperature after First Heat Exchanger 1 to decline, in indoor set 9, it is disposed in the interior the vaporizer 10 within machine 9 effectively to dehumidify, the water condensate storage that dehumidifying is discharged, in drip tray 17, is discharged by draining pump 18, controls data center machine room ambient humidity.When data center machine room relative humidity meets and sets threshold values, the now rotating speed of the discharge quantity of fan of controller Intelligent adjustment indoor set 9 and frequency conversion refrigerated medium pump, it is ensured that air-conditioning work is in high sensible heat ratio state.
Owing to indoor recuperated cycle relies on gravity as power source, therefore in the installation of collector tube (water inlet pipe) Yu collector tube (outlet pipe), need to carry out according to the mode of same journey pipe layout, namely most advanced enter indoor set stream, guarantee out finally, such layout type can the pipe internal resistance of each indoor set balanced, it is ensured that cold-producing medium distributed uniform, it is ensured that heat transfer effect.
The circulation of outdoor heat exchange side comprises natural cooling source pattern and handpiece Water Chilling Units pattern, as follows:
Natural cooling source pattern, outside recuperated cycle is: first cooling water pump 2 �� the first electric T-shaped valve 3 �� condenser coil, 19 �� First Heat Exchanger 1 �� the first cooling water pump 2, completes natural cooling source cycle of modes. At outdoor environment temperature lower than when entering dry and cold device cooling water temperature 10 DEG C, cooling water is by the first electric T-shaped valve 3, without the first handpiece Water Chilling Units, Intelligent adjustment by the first cooling water pump 2 with frequency conversion condenser fan 4, the cooling water of output suitable temperature, First Heat Exchanger 1 carries out heat exchange with indoor cold-producing medium, meets indoor load refrigeration requirement.
Handpiece Water Chilling Units pattern, outside recuperated cycle is: first cooling water pump 2 �� the first electric T-shaped valve 3 �� the first handpiece Water Chilling Units 8 �� the first check valve 16 �� First Heat Exchanger 1 �� the first cooling water pump 2, completes handpiece Water Chilling Units cycle of modes. When outdoor environment temperature and cooling water pump leaving water temperature are less than 10 DEG C, now condenser fan 3 quits work, controller adjusts the first electric T-shaped valve 3 mode of operation, cooling water is made to enter the first handpiece Water Chilling Units 8, the cooling water of suitable temperature is provided by the first handpiece Water Chilling Units 8, meets indoor load refrigeration requirement.
Being illustrated in figure 2 the second embodiment of energy-saving air conditioning system of the present invention, it is applicable to the server cabinet of big data center module and high heat density, meets Super long tube application. Comprising:
For reducing some the indoor sets 9 of room temperature to indoor air-supply;
For realizing the kind of refrigeration cycle module of refrigerant cycle;
For the controller that indoor temperature and humidity are controlled;
Described indoor set, kind of refrigeration cycle module and controller are sequentially connected with;
The equipment being disposed in the interior side in described kind of refrigeration cycle module includes:
The fluid reservoir of the storage cold-producing medium being connected with described indoor set;
Described indoor set is connected by header with fluid reservoir;
The equipment being disposed in the outdoor side includes: for carrying out First Heat Exchanger the 1, second electric T-shaped valve the 24, first cooling water pump 2 and first condenser 5 of input and output heat exchange, described first cooling water pump 2 and the first condenser 5 access First Heat Exchanger 1 after connecting.
In order to prevent the first cooling water pump and the first condenser from breaking down, it is impossible to when carrying out indoor temperature and humid control, it is advantageous to, it is additionally provided with between described fluid reservoir and indoor set: cooling backup units 20;
Described cooling backup units 20 includes: the second check valve 23 and the second condenser 31;
The entrance of First Heat Exchanger 1 is accessed by the second electric T-shaped valve 24 in one end of described second condenser 31, and the other end of described second condenser 30 and the second check valve 23 access the outlet of First Heat Exchanger 1 after being connected.
Same, in order to improve the more intelligent control of cold-producing medium in fluid reservoir, described fluid reservoir is also associated with refrigerated medium pump and electric two-way valve.
The main difference of the second embodiment and the first embodiment is following 4 points:
Indoor heat exchange side increases frequency conversion refrigerated medium pump 21, under the application conditions that server cabinet quantity is many, can carry out reliable cooling heat exchange, overcomes the deficiency that gravity circulation provides power limited.
Increase electric two-way valve 22, when big data center module prior service device load is relatively small, refrigeration requirement is less, frequency conversion refrigerated medium pump 21 operates with minimum frequency, if now indoor set 9 refrigerating capacity exports still greater than thermal load demands, then controller intelligence output order, open electric two-way valve 22, by-passing part cold-producing medium is to fluid reservoir 15, the refrigerant flow flowing through indoor set 9 reduces, reduce cold output further, make cold output match with data center's heat load, it is ensured that data center server is operated in design temperature scope.
Indoor set 9 selects row level air conditioning mode or base type air conditioning mode, and indoor fan 14 can adopt centrifugal blower, it is adaptable to the application mode of the cold and hot channel separation of modular data center, centrifugal blower air output is bigger, air supplying distance is farther, and sensible heat ratio is higher, and heat transfer effect is more preferably. Room conditioning 9 can increase heating module and humidification module according to the actual requirements, can meet Temperature and Humidity Control requirement in any case.
Increase cooling backup units 20, when the first cooling water pump 2, when condenser fan 4 or the first handpiece Water Chilling Units 8 fault, now controller is by controlling the second electric T-shaped valve 24, regulate circulating refrigerant flow direction and turn to cooling backup units 20, recuperated cycle is: fluid reservoir 15 �� refrigerated medium pump, 21 �� collector tube (entering) �� indoor set 9 �� collector tube (going out) �� second electric T-shaped valve 24 �� condenser coil 25 �� the second check valve 23 �� fluid reservoir 15, guarantee when related device fault, outdoor heat exchange side can work on, do not affect indoor cooling heat exchange, play cooling backup functionality.
As it is shown on figure 3, the invention also discloses the third embodiment of energy-saving air conditioning system, shown in Fig. 3, a kind of data center energy-saving control system, including:
For reducing some the indoor sets 9 of room temperature to indoor air-supply;
For realizing the kind of refrigeration cycle module of refrigerant cycle;
For the controller that indoor temperature and humidity are controlled;
Described indoor set, kind of refrigeration cycle module and controller are sequentially connected with;
The equipment being disposed in the interior side in described kind of refrigeration cycle module includes: the fluid reservoir 15 of the storage cold-producing medium being connected with described indoor set 9;
Described indoor set 9 is connected by header with fluid reservoir 15;
The equipment being disposed in the outdoor side in described kind of refrigeration cycle module includes: the 3rd condenser 5 and the second electric T-shaped valve 24;
Described 3rd condenser 30 and the second electric T-shaped valve 24 access fluid reservoir after connecting.
The equipment being disposed in the outdoor side in described kind of refrigeration cycle module also includes:
Second heat exchanger the 26, second handpiece Water Chilling Units the 29, the 3rd check valve 23 and the second cooling water pump 27;
After described second handpiece Water Chilling Units 29 is connected with the second cooling water pump 27, access the second heat exchanger 26, arrival end and second electric T-shaped valve 24 of described second heat exchanger 26 are connected, and described second heat exchanger 26 port of export and the 3rd check valve 23 are connected between the second electric T-shaped valve 24 and fluid reservoir 15 after connecting.
Described 3rd condenser 30 includes: condenser fan and condenser coil;
It is arranged above spray equipment at described condenser coil;
Described spray equipment includes: injection spray pipe 6 and electromagnetic valve 28; Described electromagnetic valve 28 is connected with controller, opens and closes for the instruction according to controller, it is achieved the control whether injection spray pipe 6 is sprayed.
Described fluid reservoir is also associated with refrigerated medium pump and electric two-way valve.
Described 3rd embodiment contains two kinds of mode of operations, a kind of pattern is a loop condensing heat-exchange, adopt cold-producing medium as heat transferring medium, mode of operation is: fluid reservoir 15 �� refrigerated medium pump, 21 �� collector tube (entering) �� indoor set 9 �� collector tube (going out) �� condenser coil 25 �� the second electric T-shaped valve 24 �� fluid reservoir 15, complete rear condensing heat-exchange circulation; Another kind of pattern is secondary loop condensing heat-exchange, circulating refrigerant is in the second heat exchanger 26, the chilled water provided with the second handpiece Water Chilling Units 29 carries out heat exchange, mode of operation is: fluid reservoir 15 �� refrigerated medium pump, 21 �� collector tube �� indoor set 9 �� collector tube (going out) �� condenser coil 25 �� the second electric T-shaped valve 24 �� the second heat exchanger the 26 �� the 3rd check valve 23 �� fluid reservoir 15, and complete rear secondary loop condensing heat-exchange circulates.
When the data center server installed when client's initial stage is less, Indoor Thermal load is less, indoor set 9 refrigeration capacity requirement is less, now controller intelligent decision demand, by frequency conversion condenser fan 4 outside control room and judge whether open spray equipment regulate refrigerant condensing temperature, indoor fan 14 regulates different rotating speeds according to temperature, and frequency conversion refrigerated medium pump 21 operates with minimum frequency; If now cold exports still greater than server load demand, then controller output order, open electric two-way valve 22, by-passing part cold-producing medium is to fluid reservoir 15, reduce the refrigerant flow of refrigerated medium pump 21, control the refrigerating capacity output of indoor set 9, matched load refrigeration requirement, it is ensured that data center machine room server operating temperature is stable further.
When data center machine room envionmental humidity is higher, there is dehumidification, controller output dehumidifying instruction, indoor fan 14 intelligence reduces discharge quantity of fan, and condenser fan improves rotating speed, reduce circulating refrigerant temperature, the refrigerant temperature making entrance indoor set 9 declines, and in vaporizer 10, the evaporating temperature of coolant declines, and promotes effect on moisture extraction, the water condensate storage that dehumidifying is discharged is in drip tray 17, outside by draining pump 18 discharge chamber.
When data center machine room envionmental humidity is relatively low, need to humidifying, controller output humidification instruction, humidification module intelligence humidifies, it is ensured that data center machine room relative humidity is stable.
Air conditioning unit recuperated cycle comprises natural cooling source pattern, mixed model and handpiece Water Chilling Units pattern, as follows:
Natural cooling source pattern, recuperated cycle is: mode of operation is: fluid reservoir 15 �� refrigerated medium pump, 21 �� collector tube 11(enters) �� indoor set 9 �� collector tube 12(goes out) �� condenser coil 25 �� the second electric T-shaped valve 24 �� fluid reservoir 15, complete natural cooling source cycle of modes. When outdoor environment temperature is lower than the refrigerant temperature 10 DEG C of entrance condenser coil 25, second handpiece Water Chilling Units 29 is out of service, the stepless time adjustment that natural cooling source provides the circulation frequency conversion condenser fan processed of low temperature is made full use of by running dry and cold device, the low temperature liquid cold-producing medium of output suitable temperature, enter fluid reservoir 15, meet cryogen in data, it is achieved energy-saving run. Controller controls the second electric T-shaped valve 24 and adjusts mode of operation, makes cold-producing medium without the second heat exchanger 26, by scheming room load refrigeration requirement. 3rd check valve 23 effect is to ensure that cold-producing medium flows backwards into plate type heat exchanger 26.
Mixed heat transfer pattern, recuperated cycle is: fluid reservoir 15 �� refrigerated medium pump, 21 �� collector tube 11(enters) �� indoor set 9 �� collector tube 12(goes out) �� condenser coil 25 �� the second electric T-shaped valve 24 �� the second heat exchanger the 26 �� the 3rd check valve 23 �� fluid reservoir 15, complete mixed model circulation.When outdoor environment temperature is slightly less than the refrigerant temperature entering condenser coil 25, outdoor environment temperature monitored in real time by controller, it is determined that whether electromagnetic valve 28 is energized and opens, and starts spray equipment work; Now cooling fan runs with maximum (top) speed, circulating refrigerant condenser coil 25 preferentially carries out heat exchange, controller controls electric T-shaped valve 24 makes cold-producing medium enter in the second heat exchanger 26, the freezing water provided with the second handpiece Water Chilling Units 29 carries out heat exchange, due to cold-producing medium preferential condensation, therefore handpiece Water Chilling Units only need to provide partial capability can meet indoor loading demand. Handpiece Water Chilling Units pattern, cold-producing medium flows through the second heat exchanger 26, the freezing water provided with the second handpiece Water Chilling Units 29 carries out heat exchange, mode of operation is: fluid reservoir 15 �� refrigerated medium pump, 21 �� collector tube 11(enters) �� indoor set 9 �� collector tube 12(goes out) �� condenser coil 25 �� the second electric T-shaped valve 24 �� the second heat exchanger the 26 �� the 3rd check valve 23 �� fluid reservoir 15, complete rear secondary loop condensing heat-exchange circulates. When outdoor environment temperature is higher than the refrigerant temperature of entrance condenser coil 25, now condenser fan 4 quits work, electromagnetic valve 28 is opened, spray equipment works, and the tap water atomization relatively low by temperature is sprayed on condensing fin, preferential evaporation absorption portion cold-producing medium heat, controller adjusts the second electric T-shaped valve 24 mode of operation, making cold-producing medium flow through the second heat exchanger 26, the chilled water provided with the second handpiece Water Chilling Units 29 carries out heat exchange, it is provided that meet the cold of data center machine room load.
The present invention compared with prior art, has the advantage that
One, consumes power little, and annual Energy Efficiency Ratio is high. When refrigerating capacity is identical, refrigerated medium pump consumes power and consumes power much smaller than compressor, therefore scheming room in the data, adopts refrigerated medium pump to serve as power source energy-saving effect obvious; And in the data the heart low-load time, adopt the technology of VFC+bypass, control the flow of refrigerated medium pump, it is possible to decrease the consumption power of pump, while can solve the application of data center machine room low-load, it is ensured that data center machine room temperature stabilization. On the other hand, when scheming room need to dehumidify in the data, refrigerated medium pump controllable flow rate exports, and makes indoor set effect on moisture extraction promote.
Its two, Temperature and Humidity Control is stable, solves low load dehumidifying problem, it is ensured that data center machine room constant temperature and humidity. When data center machine room envionmental humidity is higher, when load is bigger, need to carrying out refrigerated dehumidification, controller intelligent decision is freezed and dehumidification mode, contrast real-time relative humidity and humidity set threshold values, output control signal, the now output of variable frequency pump enlargement discharge, indoor fan intelligence reduces air quantity, promote effect on moisture extraction, humid control is being set threshold range, and the water condensate storage of discharge is at drip tray, outside by draining pump discharge chamber. If load very low and need dehumidify time, open bypass valve, refrigerated medium pump reduces refrigerant flow output, indoor set is operated under dehumidification mode, reach the requirement that refrigerating capacity output is controlled, simultaneously can by humid control in set point, it is ensured that data center machine room server running environment humiture is stable. When data center machine room load is too little, early stage needs to be heated, and can open controllable silicon PTC electrical heating, and intelligence output adds heat, in conjunction with machine room heat load, mates with indoor set refrigerating capacity, stablizes computer room temperature. When data center machine room envionmental humidity is relatively low, need to humidify, controller intelligent decision, output humidification signal, now humidifier is opened, and humidifies, by humid control in set point, wherein, humidification method comprises wet-film humidifying mode, electrode humidifler, electric heat type humidifier etc.
Its three, there is diversified energy-saving application mode, indoor heat exchange side once heat exchange, also have secondary heat exchange, outdoor heat exchange medium can use cooling water, it is also possible to cold-producing medium.Indoor set system, in the situation of small-sized data center or low-load, can adopt heat pipe backboard mode to rely on gravity mode to carry out kind of refrigeration cycle, and the application of large data center machine room can adopt refrigerated medium pump+action of gravity, serves as power source, at utmost saves the energy; For modular data center, the application of cold and hot channel separation, can adopting air-conditioning or employing base type air conditioning mode, compatible heating module and humidification module between row, be truly realized data center's constant temperature and humidity, humiture is controlled. Outdoor heat exchange side can be selected for a loop heat exchange pattern or secondary loop heat exchange pattern according to actual needs, can be selected for cooling backup functionality simultaneously, it is ensured that data center's refrigeration persistence. Diversified energy-saving type air conditioner application model, adapts to the various complicated applications occasions of modern data center completely.
Its four, air conditioning unit possess three kinds of mode of operations, including natural cooling source pattern, mixed model, handpiece Water Chilling Units pattern. When outdoor environment temperature is very low, makes full use of natural cooling source by running dry and cold device low-temperature refrigerant is provided, it is achieved energy-saving run. When outdoor environment temperature is slightly less than indoor temperature (transition season), cannot fully utilized air-cooled cooling, then connected with handpiece Water Chilling Units by dry and cold device, now there are blend modes of operation and two kinds of methods of pure handpiece Water Chilling Units mode of operation, controller is by contrasting outdoor temperature and refrigerant temperature, and whether intelligent decision condensation fan is opened; Judge whether electromagnetic valve is opened, carry out mist cooling at dry and cold device in advance, at utmost reduce the power consumption of handpiece Water Chilling Units.
Its five, Based Intelligent Control, safe and reliable, failure risk is low. This patent adopts intelligent controller to carry out the mode of operation switching of each device, such as power devices such as indoor frequency conversion fan, frequency conversion refrigerated medium pump and frequency conversion cooling blowers; Such as electric two-way valve, the intelligence switching of the device such as electric three-way regulating valves and electromagnetic valve. Indoor and outdoor humiture situation monitored in real time by controller, and intelligence exports various control instructions, it is ensured that each module is operated in optimal operational condition.
Its six, indoor set adopts multi-joint mounting means, and installation pipeline is less, and anhydrous enter machine room, be absent from water logging risk, overall succinct; Adopting the indoor set that cold and hot channel separation is applied, as broken down, intelligence closes electromagnetic valve, opens standby indoor set, on-call maintenance handling failure machine.
It is understood that for those of ordinary skills, it is possible to it is equal to replacement according to technical scheme and inventive concept thereof or is changed, and all these are changed or replace the scope of the claims that all should belong to appended by the present invention.
Claims (10)
1. data center's energy-saving control system, it is characterised in that including:
For reducing some indoor sets of room temperature to indoor air-supply;
For realizing the kind of refrigeration cycle module of refrigerant cycle;
For the controller that indoor temperature and humidity are controlled;
Described indoor set, kind of refrigeration cycle module and controller are sequentially connected with;
The equipment being disposed in the interior side in described kind of refrigeration cycle module includes:
Be connected with described indoor set storage cold-producing medium fluid reservoir and for carrying out the First Heat Exchanger of input and output heat exchange; Described indoor set, fluid reservoir are connected by header with First Heat Exchanger;
The equipment being disposed in the outdoor side includes: the first cooling water pump, the first electric T-shaped valve and the first condenser, after described first cooling water pump, the first electric T-shaped valve and the first condenser are sequentially connected with, accesses First Heat Exchanger.
2. data center's energy-saving control system according to claim 1, it is characterised in that the equipment being disposed in the interior side in described kind of refrigeration cycle module also includes: the first handpiece Water Chilling Units and the first check valve;
Described first handpiece Water Chilling Units is connected with the first check valve, after being connected side by side with described first condenser, after connecting with the first electric T-shaped valve, the first cooling water pump, accesses described First Heat Exchanger.
3. data center according to claim 1 or claim 2 energy-saving control system, it is characterised in that described fluid reservoir is also associated with refrigerated medium pump and electric two-way valve.
4. data center's energy-saving control system, it is characterised in that including:
For reducing some indoor sets of room temperature to indoor air-supply;
For realizing the kind of refrigeration cycle module of refrigerant cycle;
For the controller that indoor temperature and humidity are controlled;
Described indoor set, kind of refrigeration cycle module and controller are sequentially connected with;
The equipment being disposed in the interior side in described kind of refrigeration cycle module includes:
The fluid reservoir of the storage cold-producing medium being connected with described indoor set;
Described indoor set is connected by header with fluid reservoir;
The equipment being disposed in the outdoor side includes: for carrying out the First Heat Exchanger of input and output heat exchange, the second electric T-shaped valve, the first cooling water pump and the first condenser, and described first cooling water pump and the first condenser access First Heat Exchanger after connecting.
5. data center's energy-saving control system according to claim 4, it is characterised in that be additionally provided with between described fluid reservoir and indoor set: cooling backup units;
Described cooling backup units includes: the second check valve and the second condenser;
One end of described second condenser is by the entrance of the second electric T-shaped valve access First Heat Exchanger, and the other end of described second condenser and the second check valve access the outlet of First Heat Exchanger after being connected.
6. data center's energy-saving control system according to claim 4 or 5, it is characterised in that described fluid reservoir is also associated with refrigerated medium pump and electric two-way valve.
7. data center's energy-saving control system, it is characterised in that including:
For reducing some indoor sets of room temperature to indoor air-supply;
For realizing the kind of refrigeration cycle module of refrigerant cycle;
For the controller that indoor temperature and humidity are controlled;
Described indoor set, kind of refrigeration cycle module and controller are sequentially connected with;
The equipment being disposed in the interior side in described kind of refrigeration cycle module includes: the fluid reservoir of the storage cold-producing medium being connected with described indoor set;
Described indoor set is connected by header with fluid reservoir;
The equipment being disposed in the outdoor side in described kind of refrigeration cycle module includes: the 3rd condenser and the second electric T-shaped valve;
Described 3rd condenser and the second electric T-shaped valve access fluid reservoir after connecting.
8. data center's energy-saving control system according to claim 7, it is characterised in that the equipment being disposed in the outdoor side in described kind of refrigeration cycle module also includes:
Second heat exchanger, the second handpiece Water Chilling Units, the 3rd check valve and the second cooling water pump;
After described second handpiece Water Chilling Units is connected with the second cooling water pump, access the second heat exchanger, the arrival end of described second heat exchanger and the second electric T-shaped valve are connected, and described second heat exchanger exit end and the 3rd check valve are connected between the second electric T-shaped valve and fluid reservoir after connecting.
9. data center's energy-saving control system according to claim 8, it is characterised in that described 3rd condenser includes: condenser fan and condenser coil;
It is arranged above spray equipment at described condenser coil;
Described spray equipment includes: injection spray pipe and electromagnetic valve;Described electromagnetic valve is connected with controller, opens and closes for the instruction according to controller, it is achieved the control whether injection spray pipe is sprayed.
10. data center's energy-saving control system according to claim 8, it is characterised in that described fluid reservoir is also associated with refrigerated medium pump and electric two-way valve.
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| CN114110741A (en) * | 2021-12-07 | 2022-03-01 | 深圳市英威腾网能技术有限公司 | Fluorine pump machine room air conditioner and control method |
| CN114375142A (en) * | 2022-01-24 | 2022-04-19 | 北京百度网讯科技有限公司 | Cooling Systems and Data Centers |
| CN115315151A (en) * | 2022-08-12 | 2022-11-08 | 曙光数据基础设施创新技术(北京)股份有限公司 | Data center cooling system, method and apparatus |
| CN115715080A (en) * | 2022-12-01 | 2023-02-24 | 南华大学 | Data center heat pipe composite air conditioning system and operation method thereof |
| WO2024174903A1 (en) * | 2023-02-22 | 2024-08-29 | 杭州阿里云飞天信息技术有限公司 | Heat dissipation device, heat dissipation system, heat dissipation device control method, and data center |
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