CN104833028A - Data center air conditioner cool supply and energy conservation system and implementing method thereof - Google Patents
Data center air conditioner cool supply and energy conservation system and implementing method thereof Download PDFInfo
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- CN104833028A CN104833028A CN201510268456.0A CN201510268456A CN104833028A CN 104833028 A CN104833028 A CN 104833028A CN 201510268456 A CN201510268456 A CN 201510268456A CN 104833028 A CN104833028 A CN 104833028A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004134 energy conservation Methods 0.000 title claims abstract description 10
- 239000000498 cooling water Substances 0.000 claims abstract description 189
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 104
- 238000004378 air conditioning Methods 0.000 claims description 72
- 238000001816 cooling Methods 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 230000003020 moisturizing effect Effects 0.000 claims description 8
- 239000013589 supplement Substances 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 claims description 7
- 238000005265 energy consumption Methods 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 8
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000007812 deficiency Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 238000005381 potential energy Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F10/00—Siphons
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a data center air conditioner cool supply and an energy conservation system and implementing method thereof. According to the system and the method, cooling water is led into a first cooling water heat exchange system from a water storage device according to a siphon principle, then it is guaranteed that the cooling water flows back to the water storage device from the first cooling water heat exchange system through a second cooling water heat exchange system, and therefore cooling water circulation is achieved. Meanwhile, the outdoor environment temperature is higher than the indoor temperature, so that a cold source is provided by suiting measures to the local condition, in this way, the energy consumption of the data center air conditioner system is greatly reduced, the purposes of saving energy and protecting the environment are achieved, and high economic benefits and social benefits are achieved. The energy conservation and emission reduction policy and the requirement for building a resource-conserving and environmentally-friendly society initiated by China at present are met.
Description
Technical field
The present invention relates to data center's air-conditioning cooling technical field, particularly relate to a kind of data center air-conditioning cold-supplying energy-saving system and its implementation.
Background technology
Along with expanding economy, a large amount of enterprise's develop rapidlys, for the demand also fast lifting of data processing business, has built a lot of data center in succession.According to the definition of the U.S. " data center's infrastructure of telecommunication standard " (Telecommunications Infrastructure Standard for DataCenters.ANSI/17A-942-2005), data center holds certain part in a building building of computer floor and support area thereof or building, mainly arranges the computer, the network equipment, the electronic equipment that carry out data processing and exchanges data.
The raising of the machine room density of data center makes data center's air-conditioning system become a more and more important problem.The main task of data center's air-conditioning system is for data processing equipment provides suitable working environment (temperature, humidity, dustiness degree etc.), ensures data communications equipment reliability of operation and validity.
Green energy conservation is a development trend of data center's air-conditioning system, especially the energy consumption scale of telecommunications, movement, finance and national large-scale data center and energy-conservation demand extremely urgent, the a lot of mechanisms comprising applicant are a lot of to its research, and also achieve certain achievement in research.
Applicant proposed a kind of can the accurate constant temperature and humidity rack of safety intelligent type combined type (application number: 201110026991.7), as shown in Figure 1, be placed on the floor 1 of machine room as professional equipment rack, it mainly forms and comprises: cabinet body 2; The main ajutage 3 of air-conditioning, connects air-conditioning 4 and cabinet body 2; More than one air-conditioning tributary airduct 5, is arranged between the main ajutage 3 of air-conditioning and cabinet body 2; Firefighting bottle 6, is arranged on above each cabinet body 2, has fire smothering gas; Air inlet pipe, is arranged between firefighting bottle 6 and cabinet body 2; Breeze fan 8, is arranged on the below of each cabinet body 2; Return air fan 9, is arranged on the top of each cabinet body 2; Exhaust smoke valve 10, is arranged on the top of each return air fan 9; Intelligence control system, for accurate controller in-cabinet temperature and fire-fighting fire extinguishing, realization is accurately sent cold, and this reduces greatly by making the air-conditioning equipment power energy consumption of large-scale data center, can economize energy.
Under the prerequisite that cryogenic temperature is certain, the return air temperature of sending air-conditioning 4 back to by the main ajutage of air-conditioning 3 by cabinet body 2 is lower, and so the energy consumption of air-conditioning 4 is fewer, in view of this, how to reduce the return air temperature that return air duct sends accurate cooling air-conditioning back to, become one of current problem demanding prompt solution.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of data center air-conditioning cold-supplying energy-saving system and its implementation, to be intended to solve in prior art hot blast temperature in return air duct higher, the problem that accurate cooling air-conditioning power consumption is larger.
Technical scheme of the present invention is as follows:
A kind of data center air-conditioning cold-supplying energy-saving system, is arranged on return air duct, and described return air duct is used for sending hot blast back to accurate cooling air-conditioning from rack, and wherein, described data center air-conditioning cold-supplying energy-saving system comprises:
Be arranged on the first cooling water heat-exchange system in machine room space, for carrying out heat exchange with the hot blast of return air duct;
The second cooling water heat-exchange system in environment disposed in the outdoor, for carrying out heat exchange with the air in outdoor environment;
Water-storing device;
First outlet conduit, for being communicated with the first cooling water heat-exchange system and the second cooling water heat-exchange system;
Second outlet conduit, for being communicated with the second cooling water heat-exchange system and water-storing device;
Inlet channel, for being communicated with water-storing device and the first cooling water heat-exchange system;
The position that described first outlet conduit is communicated with the first cooling water heat-exchange system is positioned at the top of the first cooling water heat-exchange system; The position that described second outlet conduit is communicated with water-storing device is positioned at the top of water-storing device, the position that described inlet channel is communicated with water-storing device is positioned at the bottom of water-storing device, and the position that described inlet channel is communicated with the first cooling water heat-exchange system is positioned at the bottom of the first cooling water heat-exchange system;
Cooling water enters the second cooling water heat-exchange system by the first outlet conduit, then enters water-storing device by the second outlet conduit, subsequently enter the first cooling water heat-exchange system by inlet channel after flowing out from the first cooling water heat-exchange system;
Wherein, the water level of the water level of described first cooling water heat-exchange system, the water level of the second cooling water heat-exchange system and water-storing device is equal, and the water temperature of the first cooling water heat-exchange system is higher than the water temperature of water-storing device, utilize siphon principle, cooling water nature is incorporated in the first cooling water heat-exchange system from water-storing device;
Described second cooling water heat-exchange system also comprises a small pump, for being pumped in water-storing device by outlet conduit by the water of the second cooling water heat-exchange system.
Described first cooling water heat-exchange system and the second cooling water heat-exchange system comprise a coil pipe respectively; One is provided with for detecting the ball float of the water level in water-storing device in described water-storing device, and a water supplement structure, for when after the water level decreasing in water-storing device to water level threshold values, carry out moisturizing in water-storing device.
Described data center's air-conditioning cold-supplying energy-saving system, wherein, also comprises:
First temperature-detecting device, for detecting the water temperature at the first cooling water heat-exchange system two ends;
Second temperature-detecting device, for detecting the water temperature at the second cooling water heat-exchange system two ends.
Described data center's air-conditioning cold-supplying energy-saving system, wherein, also comprises: switching device, for when in outdoor environment higher than predetermined temperature threshold values time, close described data center air-conditioning cold-supplying energy-saving system.
Described data center's air-conditioning cold-supplying energy-saving system, wherein, described second cooling water heat-exchange system also comprises one first adjusting device, for according to the wind speed of outdoor environment and/or wind direction, regulate the position of the second cooling water heat-exchange system, maximum with the heat exchanger effectiveness realizing the second cooling water heat-exchange system.
Also comprise one for regulating water-storing device relative to the second adjusting device of the first cooling water heat-exchange system water level, described second adjusting device connects water-storing device.
Adopt above-mentioned data center air-conditioning cold-supplying energy-saving system to realize the energy-conservation method of data center, wherein, said method comprising the steps of:
S1, be arranged in machine room space the first cooling water heat-exchange system in cooling water and the hot blast of return air duct carry out heat exchange, heat absorption flows into the second cooling water heat-exchange system by the first outlet conduit after heating up; Because inlet channel is arranged on the bottom of the first cooling water heat-exchange system, the water temperature of the cooling water of its input is lower than the water temperature of the first cooling water heat-exchange system, when heat exchange is carried out in cooling water heat absorption intensification in first cooling water heat-exchange system, expanded by heating, density diminishes, just naturally rise to the top of the first cooling water heat-exchange system, complete whole heat exchanging process;
Cooling water in the second cooling water heat-exchange system in S2, environment disposed in the outdoor and the air in outdoor environment carry out heat exchange, after heat release cooling, then flow in water-storing device by the second outlet conduit;
S3, utilize siphon principle, cooling water nature is incorporated in the first cooling water heat-exchange system from water-storing device, ensures that S1 and S2 repeats.
The implementation method of described data center's air-conditioning cold-supplying energy-saving system, wherein, also comprises step S4:
When ball float detects that water level water level decreasing in water-storing device is after water level threshold values, carries out moisturizing by water supplement structure in water-storing device.
The implementation method of described data center's air-conditioning cold-supplying energy-saving system, wherein, is characterized in that, also comprises step S5:
When in outdoor environment higher than predetermined temperature threshold values time, switching device cuts out described data center air-conditioning cold-supplying energy-saving system.
The implementation method of described data center's air-conditioning cold-supplying energy-saving system, wherein, also comprise step S6: according to wind speed and/or the wind direction of outdoor environment, adjusting device regulates the position of the second cooling water heat-exchange system, maximum with the heat exchanger effectiveness realizing the second cooling water heat-exchange system.
Beneficial effect: the invention provides a kind of data center air-conditioning cold-supplying energy-saving system and adopt this system to realize the energy-conservation method of data center, it not only utilizes siphon principle to ensure and is incorporated into by cooling water in the first cooling water heat-exchange system from water-storing device under the prerequisite without the need to additionally consuming energy consumption, guarantee that cooling water flow back into water-storing device from the first cooling water heat-exchange system through the second cooling water heat-exchange system again, achieve the circulation of cooling water.Meanwhile, utilize outdoor environment temperature with also suiting measures to local conditions higher than indoor temperature to make low-temperature receiver, reduce the energy consumption of data center's air-conditioning system greatly, reach the object of energy-conserving and environment-protective, there is higher economic and social benefit.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of data center's air conditioner divisional cold-supplying energy-saving system of prior art.
Fig. 2 is the structured flowchart of data center of the present invention air-conditioning cold-supplying energy-saving system.
Fig. 3 is the schematic diagram of siphon principle.
Fig. 4 is the schematic diagram of the preferred embodiment of data center of the present invention air-conditioning cold-supplying energy-saving system.
Fig. 5 is the profile of Fig. 4.
Fig. 6 a is the schematic diagram of the functional relation of the heat Q1 of the first cooling water heat-exchange system absorption and the flow velocity v1 of cooling water in the embodiment of data center of the present invention air-conditioning cold-supplying energy-saving system.
Fig. 6 b is the schematic diagram of the functional relation of the area s1 of the heat Q1 of the first cooling water heat-exchange system absorption and the coil pipe of the first cooling water heat-exchange system in the embodiment of data center of the present invention air-conditioning cold-supplying energy-saving system.
Fig. 6 c is the schematic diagram of the functional relation of heat Q2 that in the embodiment of data center of the present invention air-conditioning cold-supplying energy-saving system, the second cooling water heat-exchange system distributes and internal-external temperature difference △ T.
Fig. 6 d is the schematic diagram of the functional relation of the area s2 of the coil pipe of heat Q2 that in the embodiment of data center of the present invention air-conditioning cold-supplying energy-saving system, the second cooling water heat-exchange system distributes and the second cooling water heat-exchange system.
Fig. 7 is the flow chart of the implementation method of data center of the present invention air-conditioning cold-supplying energy-saving system.
Detailed description of the invention
The invention provides a kind of data center air-conditioning cold-supplying energy-saving system and its implementation, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to Fig. 2, data center provided by the invention air-conditioning cold-supplying energy-saving Operation system setting is on return air duct, described return air duct is used for sending hot blast back to accurate cooling air-conditioning from rack, wherein, described data center air-conditioning cold-supplying energy-saving system comprises: the first cooling water heat-exchange system 100, second cooling water heat-exchange system 200 and water-storing device 300; Cooling water 11 flows into the second cooling water heat-exchange system 200 from the first cooling water heat-exchange system 100 by the first outlet conduit 110, enter into water-storing device 300 by the second outlet conduit 111 again, subsequently flow into the first cooling water heat-exchange system 100 by inlet channel 120.
Specifically, described in be arranged on the first cooling water heat-exchange system 100 in machine room space for carrying out heat exchange with the hot blast of return air duct, the hot blast of described return air duct sends accurate cooling air-conditioning by rack back to by return air duct; This hot blast temperature is higher (in general, 38 DEG C can be reached), when described hot blast is by the first cooling water heat-exchange system 100, heat exchange is carried out: cooling water absorbs heat and heats up with the cooling water in the first cooling water heat-exchange system 100, hot blast temperature reduces, the energy consumption of accurate cooling air-conditioning is fewer (in general, condensation temperature was once often reducing, and the power consumption rate of equipment reduces about 3% to 4%).
The cooling water heated up enters into the second cooling water heat-exchange system 200 by the first outlet conduit 110, carry out heat exchange again: in the second cooling water heat-exchange system 200 environment disposed in the outdoor, flow through between cooling water in the second cooling water heat-exchange system 200 and outdoor environment and carry out heat exchange (because outdoor environment temperature is lower than the temperature in machine room space), cooling water to the air heat release in outdoor environment, thus reduces the temperature of cooling water.
The cooling water reducing temperature enters into water-storing device 300 by the second outlet conduit 111 again, in the present embodiment, described water-storing device is a water storage box, its inside is provided with a ball float, for detecting the water level in water-storing device, also comprise a water supplement structure in water-storing device, for when after the water level decreasing in water-storing device to water level threshold values, carry out moisturizing in water-storing device.Cooling water in water-storing device 300 flows into the first cooling water heat-exchange system 100 from inlet channel 120 again, achieves the circulation of cooling water.
And one of advantage in this programme is, adopts siphon principle in not extra catabiotic situation, ensure that water circulation.Siphonage is that between liquid molecule, gravitation and potential energy difference caused, and namely utilizes water column pressure poor, flows to lower again after making liter waterborne.Because the mouth of pipe water surface bears different atmospheric pressures, water can by pressure large to flow to pressure little, until the atmospheric pressure on both sides is equal, the water surface in container becomes identical height, and water will stop flowing.Utilize siphonage the water in container can be extracted out soon.
Suppose that cooling water is when heat exchange is carried out in the first cooling water heat-exchange system heat absorption intensification, absorbs certain heat Q; Then according to following specific heat capacity (specific heat) formula:
Q＝cmΔT；
Then can clear out the raised temperature Δ T of cooling water, wherein, Q is the heat absorbing (or releasing); M is the quality of object, Δ T be heat absorption (heat release) afterwards temperature to rise (decline) value, c represents specific heat capacity (specific heat of water appearance is 4.2).
In addition, according to formula:
W＝CρvA；
Wherein, W is heating power, and C is specific heat of water, and ρ is the density of water, and v is the speed of liter waterborne, and A is the cross section of container.The speed v of liter waterborne can be calculated.
Further, can also comprise one for regulating water-storing device relative to the second adjusting device of the first cooling water heat-exchange system water level, described second adjusting device connects water-storing device.It is used for according to siphon principle, and regulate water-storing device relative to the first cooling water heat-exchange system water level, order has a difference in height between the two, thus the water of auxiliary water storage device flows to the first cooling water heat-exchange system.
Siphon principle is exactly the principle of linker, carrys out water end (W.E.) water level high, and delivery port palm or other objects close.Now intraductal pressure is equal everywhere.After all place, open delivery port, although the atmospheric pressure on both sides is equal, the water level carrying out water end (W.E.) is high, and pressure is large, promotes water and continuously outflows delivery port.Its siphon effect as shown in Figure 3, because the water level of the first container 10 is higher than second container 20, by siphon principle, realizes water and flow in second container 20 from the first container 10.
The coolant-temperature gage of the first cooling water heat-exchange system is higher than the water temperature of water-storing device, inlet channel 120 is arranged on the bottom of the first cooling water heat-exchange system, its temperature water temperature inputted is lower than the water temperature of the first cooling water heat-exchange system, when heat exchange is carried out in the cooling water heat absorption intensification of the first cooling water heat-exchange system, the water expanded by heating of the inside, density diminishes, just rise to the top of the first cooling water heat-exchange system, complete whole heat exchanging process, and without the need to additionally providing power, namely ensure that cooling water is raised to the top of the first cooling water heat-exchange system from the bottom of the first cooling water heat-exchange system, in addition, in water-storing device, the cold water that density is larger is then back to the bottom of water-storing device, thus achieves whole cooling water circulation, and this process also can be considered as thermosyphon effect.
Further, described first cooling water heat-exchange system and the second cooling water heat-exchange system comprise a heat exchange coil respectively, make hot blast by cooled after heat exchange coil, to reduce the hot blast temperature getting back to accurate cooling air-conditioning, reach energy-conservation object.The heat exchange efficiency of described first cooling water heat-exchange system is relevant with the area of heat exchange coil, and therefore, the heat that can absorb as required is to arrange the area of heat exchange coil.
Further, in described data center's air-conditioning cold-supplying energy-saving system, described second cooling water heat-exchange system also comprises: a small pump, for being pumped in water-storing device by outlet conduit by the water of the second cooling water heat-exchange system.The power of described small pump is very low, and it can be met and is pumped in water-storing device by outlet conduit by the water of the second cooling water heat-exchange system.
Be with should be noted that, the key that the present invention can realize cooling water circulation is: indoor temperature is higher than outdoor environment temperature, and when outdoor temperature higher than indoor temperature (as summer is hotter) or hot exchange power is too low time, then do not adopt data center of the present invention air-conditioning cold-supplying energy-saving system.Namely comprise a switching device, for when the temperature in outdoor environment is higher than predetermined temperature threshold values, close described data center air-conditioning cold-supplying energy-saving system.
In addition, in described data center's air-conditioning cold-supplying energy-saving system, also comprise: for detect the water temperature at the first cooling water heat-exchange system two ends the first temperature-detecting device and, for detecting the second temperature-detecting device of the water temperature at the second cooling water heat-exchange system two ends.By first, second temperature-detecting device, we can calculate the efficiency of in fact heat exchange and energy-conservation concrete numerical value, thus come as required, regulate size and the size of the coil pipe of first, second cooling water heat-exchange system corresponding.
Further, described second cooling water heat-exchange system can also comprise an adjusting device, for according to the wind speed of outdoor environment and/or wind direction, regulates the position of the second cooling water heat-exchange system, maximum with the heat exchanger effectiveness realizing the second cooling water heat-exchange system.
Through experimental study, when meeting following condition, water pump is started working:
T1-T2<T0
Wherein, T1 represents the water temperature of the position that the first outlet conduit is communicated with the first cooling water heat-exchange system;
T2 represents the water temperature of the position that the second outlet conduit is communicated with the second cooling water heat-exchange system;
The factors such as T0 represents threshold temperature, the power of the geographical position of this numerical value residing for system, data center are arranged flexibly, are preferably 3-5 DEG C.Namely, when heat exchanger effectiveness is not high, the water of the second cooling water heat-exchange system is pumped in water-storing device by outlet conduit by water pump.
Through experimental study, when carrying out heat exchange, the heat Q1 that the first cooling water heat-exchange system absorbs, the heat Q2 of the second cooling water heat-exchange system release, and the kinetic energy E1 of cooling water, there is following relationship in the energy M that water pump provides:
M+Q1＝E+Q2+E1
In addition, there is corresponding functional relation to the area s1 of the flow velocity v1 of cooling water, the coil pipe of the first cooling water heat-exchange system in the heat Q1 that the first cooling water heat-exchange system absorbs:
Q1＝f(v1、s1)；
Through experimental verification, find that Q1 and v1 exists the linear relationship as Fig. 6 a: in addition, Q1 and s1 also exists the linear relationship as Fig. 6 b.In figure, the unit of Q1 is joule, and the unit of v1 is metre per second (m/s), and the unit of s1 is square metre.
Meanwhile, there is corresponding functional relation to the area s2 of the coil pipe of internal-external temperature difference △ T, the second cooling water heat-exchange system in the heat Q2 that the second cooling water heat-exchange system distributes:
Q2＝f(△T、s2)。
Through experimental verification, find that Q2 and △ T exists linear relationship as fig. 6 c.In addition, also there is linear relationship as shown in fig 6d in Q2 and s2.In figure, the unit of Q2 is joule, and the unit of △ T is degree Celsius, and the unit of s2 is square metre.
Illustrate how above-mentioned data center air-conditioning cold-supplying energy-saving system realizes below by a specific embodiment.
See also Fig. 4 and Fig. 5, it is the preferred embodiment of data center of the present invention air-conditioning cold-supplying energy-saving system and the schematic diagram of section thereof.As shown in the figure, hot-air discharges first heat exchange coil (also referred to as indoor cooling coil) 2000 of return air duct 1000 through the first cooling water heat-exchange system of hot blast by rack, after carrying out heat exchange with the cooling water in the first heat exchange coil 2000, hot-air is released heat and is sent back in accurate cooling air-conditioning, thus reduce the return air temperature that return air duct sends accurate cooling air-conditioning back to, reduce the energy consumption of data center's air-conditioning system greatly.And cooling water in the first heat exchange coil 2000 by the first heat exchange coil 2000 (figure is in order to represent with cold water) of entering into of the bottom of the first heat exchange coil 2000, after heat absorption heats up, expanded by heating, density diminishes, just naturally rise to the top of the first heat exchange coil 2000, become the higher water of temperature (in order to represent that temperature raises, represent with hot water in figure), hot water is by the second heat exchange coil 3000 being flowed into the second cooling water heat-exchange system by the first outlet conduit 1100, described second heat exchange coil 3000 is placed on outdoor (and across wall 1200 between first heat exchange coil 2000), heat exchange is carried out with the air in outdoor environment, after heat release cooling, flow in water-storing device 4000 again, ball float 4100 is provided with in described water-storing device 4000, for detecting the water level in water-storing device, and water supplement structure (is with the running water pipe of valve to its moisturizing with one in the present embodiment, certainly, we also can adopt other water supplementing methods).When ball float 4100 detects that water level decreasing in water-storing device is after water level threshold values, carries out moisturizing by water supplement structure in water-storing device 4000.Described water-storing device 4000 is fixed on outdoor wall by a mounting bracket 4200, and the water level of satisfied first heat exchange coil 2000 is equal with the water level of water-storing device 4000.
Further, below described first heat exchange coil 2000, a condensation water collection dish 2100 is provided with and the condensed water that is connected with described condensation water collection dish discharges conduit 2200, for collecting unnecessary condensed water or discharge.In addition, corresponding auto Drain door 4300 also can be set in the bottom of described water-storing device 4000, for being discharged by the hot water of water-storing device 4000.
Further, described second heat exchange coil 3000 place is provided with an outdoor strong-force exhaust unit 4400, carries out heat exchange for the air accelerated in the cooling water of the second heat exchange coil 3000 and outdoor environment, improve its heat exchanger effectiveness.
Present invention also offers a kind of implementation method of described data center's air-conditioning cold-supplying energy-saving system, as shown in Figure 7, said method comprising the steps of:
S100, be arranged in machine room space the first cooling water heat-exchange system in cooling water and the hot blast of return air duct carry out heat exchange, heat absorption flows into the second cooling water heat-exchange system by the first outlet conduit after heating up; Because inlet channel is arranged on the bottom of the first cooling water heat-exchange system, the water temperature of the cooling water of its input is lower than the water temperature of the first cooling water heat-exchange system, when heat exchange is carried out in cooling water heat absorption intensification in first cooling water heat-exchange system, expanded by heating, density diminishes, just naturally rise to the top of the first cooling water heat-exchange system, complete whole heat exchanging process;
Cooling water in the second cooling water heat-exchange system in S200, environment disposed in the outdoor and the air in outdoor environment carry out heat exchange, after heat release cooling, then flow in water-storing device by the second outlet conduit;
S300, utilize siphon principle, cooling water nature is incorporated in the first cooling water heat-exchange system from water-storing device, ensures that S100 and S200 repeats.
Preferably, the implementation method of described data center's air-conditioning cold-supplying energy-saving system also comprises step S400: when ball float detects that water level decreasing in water-storing device is after water level threshold values, carries out moisturizing by water supplement structure in water-storing device.
Preferably, the implementation method of described data center's air-conditioning cold-supplying energy-saving system also comprises step S500: when the temperature in outdoor environment is higher than predetermined temperature threshold values, and switching device cuts out described data center air-conditioning cold-supplying energy-saving system.
Preferably, the implementation method of described data center's air-conditioning cold-supplying energy-saving system also comprises step S600: according to wind speed and/or the wind direction of outdoor environment, adjusting device regulates the position of the second cooling water heat-exchange system, maximum with the heat exchanger effectiveness realizing the second cooling water heat-exchange system.
In sum, the invention provides a kind of data center air-conditioning cold-supplying energy-saving system and its implementation, it not only utilizes siphon principle to ensure and cooling water is incorporated into from water-storing device the first cooling water heat-exchange system under the prerequisite without the need to additionally consuming energy consumption, utilize outdoor environment temperature with also suiting measures to local conditions higher than indoor temperature to make low-temperature receiver, reduce the energy consumption of data center's air-conditioning system greatly, reach the object of energy-conserving and environment-protective, there is higher economic and social benefit.Meet " energy-saving and emission-reduction " policy that current country advocates, and construction of energy economizing type, friendly environment society requirement.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. data center's air-conditioning cold-supplying energy-saving system, is arranged on return air duct, and described return air duct is used for sending hot blast back to accurate cooling air-conditioning from rack, and it is characterized in that, described data center air-conditioning cold-supplying energy-saving system comprises:
Be arranged on the first cooling water heat-exchange system in machine room space, for carrying out heat exchange with the hot blast of return air duct;
The second cooling water heat-exchange system in environment disposed in the outdoor, for carrying out heat exchange with the air in outdoor environment;
Water-storing device;
First outlet conduit, for being communicated with the first cooling water heat-exchange system and the second cooling water heat-exchange system;
Second outlet conduit, for being communicated with the second cooling water heat-exchange system and water-storing device;
Inlet channel, for being communicated with water-storing device and the first cooling water heat-exchange system;
The position that described first outlet conduit is communicated with the first cooling water heat-exchange system is positioned at the top of the first cooling water heat-exchange system; The position that described second outlet conduit is communicated with water-storing device is positioned at the top of water-storing device, the position that described inlet channel is communicated with water-storing device is positioned at the bottom of water-storing device, and the position that described inlet channel is communicated with the first cooling water heat-exchange system is positioned at the bottom of the first cooling water heat-exchange system;
Cooling water enters the second cooling water heat-exchange system by the first outlet conduit, then enters water-storing device by the second outlet conduit, then enter the first cooling water heat-exchange system by inlet channel after flowing out from the first cooling water heat-exchange system;
Wherein, the water level of the water level of described first cooling water heat-exchange system, the water level of the second cooling water heat-exchange system and water-storing device is equal, and the water temperature of the first cooling water heat-exchange system is higher than the water temperature of water-storing device, utilize siphon principle, cooling water nature is incorporated in the first cooling water heat-exchange system from water-storing device.
2. data center according to claim 1 air-conditioning cold-supplying energy-saving system, is characterized in that, described second cooling water heat-exchange system also comprises: a water pump, for being pumped in water-storing device by outlet conduit by the water of the second cooling water heat-exchange system.
3. data center according to claim 1 air-conditioning cold-supplying energy-saving system, is characterized in that, described first cooling water heat-exchange system and the second cooling water heat-exchange system comprise a coil pipe respectively; One is provided with for detecting the ball float of the water level in water-storing device in described water-storing device, and a water supplement structure, for when after the water level decreasing in water-storing device to water level threshold values, carry out moisturizing in water-storing device.
4. data center according to claim 1 air-conditioning cold-supplying energy-saving system, is characterized in that, also comprise:
First temperature-detecting device, for detecting the water temperature at the first cooling water heat-exchange system two ends;
Second temperature-detecting device, for detecting the water temperature at the second cooling water heat-exchange system two ends.
5. a data center according to claim 4 air-conditioning cold-supplying energy-saving system, is characterized in that, also comprise: switching device, for when the temperature in outdoor environment is higher than predetermined temperature threshold values, closes described data center air-conditioning cold-supplying energy-saving system.
6. a data center according to claim 3 air-conditioning cold-supplying energy-saving system, it is characterized in that, described second cooling water heat-exchange system also comprises one first adjusting device, for according to the wind speed of outdoor environment and/or wind direction, regulate the position of the second cooling water heat-exchange system, maximum with the heat exchanger effectiveness realizing the second cooling water heat-exchange system.
7. adopt data center according to claim 1 air-conditioning cold-supplying energy-saving system to realize the energy-conservation method of data center, it is characterized in that, said method comprising the steps of:
S1, be arranged in machine room space the first cooling water heat-exchange system in cooling water and the hot blast of return air duct carry out heat exchange, heat absorption flows into the second cooling water heat-exchange system by the first outlet conduit after heating up; The water temperature of the cooling water of inlet channel input is lower than the water temperature of the first cooling water heat-exchange system, when heat exchange is carried out in cooling water heat absorption intensification in first cooling water heat-exchange system, expanded by heating, density diminishes, just naturally rise to the top of the first cooling water heat-exchange system, complete whole heat exchanging process;
Cooling water in the second cooling water heat-exchange system in S2, environment disposed in the outdoor and the air in outdoor environment carry out heat exchange, after heat release cooling, then flow in water-storing device by the second outlet conduit;
S3, utilize siphon principle, cooling water nature is incorporated in the first cooling water heat-exchange system from water-storing device, ensures that S1 and S2 repeats.
8. method according to claim 7, is characterized in that, also comprises step S4:
When ball float detects that water level water level decreasing in water-storing device is after water level threshold values, carries out moisturizing by water supplement structure in water-storing device.
9. method according to claim 7, is characterized in that, also comprises step S5:
When in outdoor environment higher than predetermined temperature threshold values time, switching device cuts out described data center air-conditioning cold-supplying energy-saving system.
10. method according to claim 7, is characterized in that, also comprises step S6: according to wind speed and/or the wind direction of outdoor environment, and adjusting device regulates the position of the second cooling water heat-exchange system, maximum with the heat exchanger effectiveness realizing the second cooling water heat-exchange system.
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| CN201510268456.0A CN104833028B (en) | 2015-04-01 | 2015-05-22 | Data center's air-conditioning cold-supplying energy-saving system and its implementation |
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| WO2016155606A1 (en) * | 2015-04-01 | 2016-10-06 | 广州汇安科技有限公司 | Air conditioning cooling and energy-saving system of data center, and method for realizing same |
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| US11839062B2 (en) | 2016-08-02 | 2023-12-05 | Munters Corporation | Active/passive cooling system |
| US11255611B2 (en) | 2016-08-02 | 2022-02-22 | Munters Corporation | Active/passive cooling system |
| HUP1900078A1 (en) | 2019-03-13 | 2020-09-28 | Heatventors Kft | System and method for controlling of temperature in server room |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN204786939U (en) | 2015-11-18 |
| WO2016155606A1 (en) | 2016-10-06 |
| CN104833028B (en) | 2017-03-15 |
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Effective date of registration: 20231115 Address after: F74, Room 302, No. 71 Huajing Road, Tianhe District, Guangzhou City, Guangdong Province, 510000 Patentee after: Guangzhou Hongrui Enterprise Management Co.,Ltd. Address before: Room 1101, Building C2, Innovation Building, No. 182 Science Avenue, Science City, Guangzhou, Guangdong Province, 510000 Patentee before: GUANGZHOU HOLDSTORM SCIENCE & TECHNOLOGY Co.,Ltd. |
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