CN107580443A - A kind of data center's integrative cooling system and its control method based on waste heat recovery - Google Patents

A kind of data center's integrative cooling system and its control method based on waste heat recovery Download PDF

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Publication number
CN107580443A
CN107580443A CN201610526411.3A CN201610526411A CN107580443A CN 107580443 A CN107580443 A CN 107580443A CN 201610526411 A CN201610526411 A CN 201610526411A CN 107580443 A CN107580443 A CN 107580443A
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cooling
data center
valve
adsorbent bed
stop valve
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张泉
沙正勇
唐辉
梁新宇
崔兵
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Xiangjiang Technology Co Ltd
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Xiangjiang Technology Co Ltd
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Abstract

The invention discloses a kind of data center's integrative cooling system and its control method based on waste heat recovery, including residual neat recovering system, adsorption refrigeration system, hot water supply system, heating system and natural coldness resource utilizing system, the backwater of residual neat recovering system alternately enters first, second adsorbent bed of adsorption refrigeration system, heating desorption, the three, the 4th adsorbent beds of absorption type refrigerating are alternately connected with the air-treatment unit of data center;The backwater of residual heat system is re-fed into data center's heat absorption after absorption type refrigerating, boiler and heat exchanger, passes through threeway valve regulation into the flow of adsorption chiller and boiler;The opposite side connection heating system and cooling tower of heat exchanger, pass through threeway valve regulation into the flow of heating system and cooling tower.The present invention can make full use of data center's information technoloy equipment radiating and natural cooling source, meet the requirement of nation-building green data center, energy-saving and emission-reduction remarkable benefit.

Description

A kind of data center's integrative cooling system and its control method based on waste heat recovery
Technical field
The invention belongs to recuperation of heat and warm water cooling technology field, and in particular to one kind is based on waste heat The data center's integrative cooling system and its control method of recovery.
Background technology
In recent years, with the high speed development of informationized society, various Internet data centers, cloud Calculate the various large server group constructions such as data center to be also developed rapidly, therewith The energy consumption also rapid development of the data center come.The energy consumption of data center is related to many aspects, according to The energy consumption of statistics air-conditioning system accounts for 1/3rd of total energy consumption.But air-conditioning system traditional at present Cold mode is all that information technoloy equipment radiating is discharged in air using water cooling or air cooling, so as to Cause the increase of energy consumption and the pollution of environment.
The liquid cooling technology of data center be with pipeline by freezing liquid (be typically water and second two Alcohol) interior of equipment cabinet is transported on raised floor or is transported to, then pass through wind and freezing liquid Between heat exchange reach cooling purpose.Because liquid is bigger than the specific heat of air, radiating rate More than air, its refrigerating efficiency is far above wind-cooling heat dissipating, therefore liquid-cooling system is following high Performance calculates the development trend of data center's cooling industry.For from system model, liquid is cold But system can be divided into two kinds of sections of indirect cooling-type (cooling plate type) and direct cooled (immersion) Can mode.
Warm water cooling technology refers to cooling down object using the higher water of temperature.Warm water cools down skill Art causes the more traditional type of cooling of temperature of required water to increase, and can further improve refrigeration system System efficiency, reaches the purpose for saving and efficiently cooling down.As a rule, the electronics member of data center Part operating temperature is higher (particularly CPU, operating temperature is usually 60 DEG C~80 DEG C), keep with 15 DEG C of -20 DEG C of temperature difference of cooling liquid can ensure that electronic component normally radiates, therefore in data It is feasible that the heart carries out cooling using warm water.
Adsorptive refrigeration technology is as a kind of green Refrigeration Technique, and coincide the current energy, ring The general trend of border coordinated development.Solid adsorption refrigeration can use waste heat to drive, not only to electric power Nervous supply play and slow down effect, and efficiency utilizes substantial amounts of low grade heat energy.In addition, Absorption type refrigerating does not use chloro-fluoro-carbon kind refrigerant, is acted on without greenhouse effects yet, is a kind of environment Friendly refrigeration modes.But the process of absorption type refrigerating is continuous unlike compression-type refrigeration Carry out, in order to ensure the smooth Adsorption and desorption of adsorbent, it is necessary to adsorbent bed intermittent-heating and cold But, therefore its coefficient of refrigerating performance is low, and system bulk is larger.
When outdoor temperature is less than indoor design temperature, it is contemplated that straight using certain technological means Connect using outdoor Cryogenic air to interior directly change it is cold, this technology be referred to as natural cooling energy-conservation skill Art.Natural cooling technology is divided into air side natural cooling and water side natural cooling.Natural cooling skill The application of art can be not turned on compressor, meet the requirement of national energy-saving emission reduction.
Traditional single cooling mode can not both make full use of the radiating of data center's information technoloy equipment, It cannot be guaranteed the energy-efficient operation of data center again, it is therefore necessary to consider that one kind utilizes data The integrative cooling system of center waste heat.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of data center based on waste heat recovery Integrative cooling system and its control method, the radiating mode of data center is that Water heating system is taken away greatly Partial heat, remainder blow to indoor environment by cabinet fan, and cold is exported by absorption unit Or hot-pipe system output cold is taken away.Its system can make full use of data center's waste heat and oneself Right low-temperature receiver completes its process of refrigerastion.
In combination with intelligent automatic-control system, in the case where ensureing data center's safe operating conditions, simultaneously To avoid frequently adjusting, using progressively adjusted optimization control strategy, whole system is set to realize automatically Each several part needs, and reaches a kind of state of approximate global optimum, so as to further save.
To realize object above, this invention takes following technical scheme:
A kind of data center's integrative cooling system based on waste heat recovery, including waste heat recovery system System, hot water supply system, natural coldness resource utilizing system, heating system and adsorption refrigeration system; The residual neat recovering system and hot water supply system are by data center's rack, the first triple valve, Two triple valves, boiler, plate type heat exchanger, warm water pump are formed by connecting by pipeline;
Natural coldness resource utilizing system is made up of separate microchannel thermotube system and cooling tower systems, Wherein described hot-pipe system includes indoor set, tracheae, liquid pipe, micro-channel heat exchanger, indoor and outdoor Blower fan;The cooling tower systems are by cooling tower, cooling water pump, the 3rd triple valve, plate-type heat-exchange Device, the 4th triple valve are formed by connecting by pipeline;The heating system and the cooling tower systems Parallel connection, pass through the 3rd triple valve and the 4th threeway valve regulation two parts flow;The absorption type system Cooling system includes the first adsorbent bed, the second adsorbent bed, the first valve, the 3rd adsorbent bed, the 4th Adsorbent bed, the second valve, driving heat source are cold alternately across the first triple valve and the second triple valve It is cold alternately across the first stop valve, the 4th adsorbent bed and the second stop valve, the 3rd adsorbent bed to freeze water But air-treatment unit and other district coolings are sent to through chilled water pump, the 6th triple valve afterwards;
The heat of adsorption and condensation heat of adsorption refrigeration system are successively by cooling water pump, the 3rd cut-off Valve, the 5th stop valve, the first adsorbent bed, the 6th stop valve, the 7th stop valve, the 3rd absorption Bed, the 8th stop valve, the 4th stop valve or the 3rd stop valve, the 9th stop valve, the 4th inhale Attached bed, the tenth stop valve, the 11st stop valve, the second adsorbent bed, the 12nd stop valve, Four stop valves are entered in cooling tower.
Further, the integrative cooling system of data center's information technoloy equipment waste heat recovery is divided into Air-cooled and water cooling;It is air-cooled to utilize adsorption refrigeration system cooling indoor return air;Water cooling uses 55~60 DEG C of warm water cooling machine cabinet CPU.
Further, the adsorption refrigeration system is 60~65 DEG C of time using data center Water alternately heats the first adsorbent bed and the second adsorbent bed completes continuous cooling as driving heat source.
Further, the adsorption refrigeration system is divided into upside cavity and downside cavity, and second Adsorbent bed and the 3rd adsorbent bed are in upside cavity;First adsorbent bed and the 4th adsorbent bed are in lower side chamber Body;Working medium used in system is to for silica gel-water.
Further, the integrative cooling system of data center's information technoloy equipment waste heat recovery, profit With the backwater heating domestic hot water of data center.
Further, the adsorption refrigeration system is in parallel with boiler and plate type heat exchanger, leads to Cross the first triple valve and second threeway valve regulation two parts flow.
Further, when the adsorption refrigeration system transition season is opened, a cold part is used Indoor temperature in control data center, a part are used for other district coolings.
Further, the hot-pipe system is microchannel separate heat pipe, in the winter time and conditioning in Transition Season Section is opened, for control data center indoor temperature.
Another technical scheme of the present invention is such:
A kind of control method of data center's integrative cooling system based on waste heat recovery, using mould Blockization is controlled, and automatic decision switching is carried out to preferred mode of operation using indoor/outdoor temperature-difference;Utilize Unit temperature, pressure feedback is adsorbed, continuous cooling is realized to absorption unit;Utilize each loop temperature Feedback, uses progressively adjusted optimization strategy, in being issued to for various constraintss to whole system A kind of purpose of approximate area-wide optimal control.
The present invention compared with prior art, has the following advantages that:
Warm water cooling technology is used to the rack of data center, high cooling efficiency, it distributed Heat has carried out sufficient utilization.Summer can drive absorption type system using data center's backwater Cold, indoor load is undertaken by absorption type refrigerating, domestic hot-water and cooling tower, according to load Size enters absorption type refrigerating and boiler and the flow of plate type heat exchanger by threeway valve regulation, The radiating of data center's information technoloy equipment is made full use of.The air of absorption type system drive Processing unit is used for controlling indoor temperature.Transition season operational mode is with summer difference Open hot-pipe system, and air-treatment unit co- controlling indoor temperature, while absorption type unit Caused cold can isolate a part and be used for other district coolings.Information technoloy equipment in winter room Hot water of the radiating for heating domestic hot water and radiant heating system, unnecessary load is by cooling down Tower and heat pipe undertake, and hot-pipe system is used to control indoor temperature.The present invention can make full use of Information technoloy equipment waste heat and natural cooling source, under the premise of data center itself load is met, Ke Yiwei Other regions convey cold, ensure that the energy-efficient operation of data center.
Brief description of the drawings
Fig. 1 is a kind of data center's integrative cooling system structure based on waste heat recovery of the present invention Schematic diagram;
Fig. 2 is adsorption chiller internal structure schematic diagram of the present invention;
Fig. 3 is separate-type heat pipe system I in microchannel of the present invention to diagrammatic cross-section;
Fig. 4 is the supporting intelligence control system control block diagram of the present invention.
Reference:1- data centers;2- racks;3- air-treatment units;4- micro channel heats Pipe indoor set;5- chilled water pumps;The stop valves of 6- second;The stop valves of 7- first;8- adsorbs unit Upside cavity;Cavity on the downside of 9- absorption units;The triple valves of 10- second;The triple valves of 11- first; 12- warm water pumps;13- boilers;14- plate type heat exchangers;The triple valves of 15- the 4th;16- the 3rd Triple valve;17- cooling towers;18- cooling water pumps;The stop valves of 19- the 3rd;The stop valves of 20- the 4th; The adsorbent beds of 21- first;The adsorbent beds of 22- second;The adsorbent beds of 23- the 3rd;The adsorbent beds of 24- the 4th; The stop valves of 25- the 9th;The stop valves of 26- the 5th;The valves of 27- second;The stop valves of 28- the tenth;29- 6th stop valve, the stop valves of 30- the 7th;The stop valves of 31- the 11st;The valves of 32- first;33- 8th stop valve;The stop valves of 34- the 12nd;35-42- temperature sensors;43- relative humidity passes Sensor;The triple valves of 44- the 5th;The triple valves of 45- the 6th.
Embodiment
Do below in conjunction with the accompanying drawings and by embodiment to present disclosure further in detail Describe in detail bright.
Embodiment 1:
Fig. 1 and Fig. 2 are referred to, shown in Fig. 3, a kind of data center based on waste heat recovery is comprehensive Close cooling system, including residual neat recovering system, adsorption refrigeration system, hot water supply system, Heating system, natural coldness resource utilizing system;The residual neat recovering system and hot water supply system by It is data center's rack 2, the first triple valve 11, the second triple valve 10, boiler 13, board-like Heat exchanger 14, warm water pump 12 are formed by connecting by pipeline.Natural coldness resource utilizing includes cooling tower System and hot-pipe system;Cooling tower systems are by cooling tower 17, cooling water pump 18, the 3rd threeway Valve 16, plate type heat exchanger 14, the 4th triple valve 15 are formed by connecting by pipeline;The absorption In formula refrigeration system unit include the first adsorbent bed 21, the second adsorbent bed 22, the first valve 32, 3rd adsorbent bed 23, the 4th adsorbent bed 24, the second valve 27, driving heat source is alternately across One triple valve 11 and the second triple valve 10, chilled water is alternately across the first stop valve the 7, the 4th Through chilled water pump 5, the after the stop valve 6 of adsorbent bed 24 and second, the cooling of the 3rd adsorbent bed 23 Six triple valves 45 are sent to air-treatment unit 3 and other district coolings.Adsorption refrigeration system Heat of adsorption and condensation heat successively by cooling water pump 18, the 3rd stop valve the 19, the 5th end Valve 26, the first adsorbent bed 21, the 6th stop valve 29, the 7th stop valve 30, the 3rd adsorbent bed 23rd, the 8th stop valve 33, the 4th stop valve 20 or the 3rd stop valve 19, the 9th stop valve 25th, the 4th adsorbent bed 24, the tenth stop valve 28, the 11st stop valve 31, the second adsorbent bed 22nd, the 12nd stop valve 34, the 4th stop valve 20 are entered in cooling tower 17.Heat pipe system System tracheae, liquid pipe, micro-channel heat exchanger, indoor and outdoor blower fan composition, is passed through by indoor set 4 Indoor set 4 is exchanged heat with data center room air, and refrigerant heat absorption phase transformation gasification heat absorption is cold But room air, between being blown into rack by indoor fan, while refrigerant enters tracheae, and on Rising and enter micro-channel heat exchanger progress heat extraction and be condensed into liquid, heat is taken away by outdoor fan, Then refrigerant liquid is back to indoor set 4 by Action of Gravity Field by liquid pipe, completes one and follows Ring.
For the indoor design temperature of data center typically at 23 DEG C~28 DEG C, summer outdoor temperature is very high, Available natural cooling source is seldom, but data center exports substantial amounts of heat and can be used for driving suction Attached formula refrigeration unit, absorption type unit and domestic hot-water and a small amount of natural cooling source are undertaken in data The load of the heart;Have certain natural cooling source outside transition season room, also with absorption type unit, The heat that domestic hot-water and natural cooling source come in decontamination chamber, while hot-pipe system is opened, with air Unit co- controlling indoor temperature is handled, while cold can be isolated caused by absorption type unit A part is used for other district coolings;There are enough natural cooling sources outside winter room, it is no longer necessary to open Open absorption unit, it is contemplated that data center also has certain resident attendant, and winter needs Heating, therefore heated using the heat of data center to supply flooring radiation, when heat surplus or When person says that radiant heating system can not undertake its load, then cooling tower 22 is opened, while with hot Management and control indoor temperature.
1. summer mode
Preferably, summer considers that the control pressure of data center environment is big, heat pipe system System is performed poor, and is opened absorption type unit allocation indoor environment, is opened cooling tower systems if necessary. Data center's backwater enters the first adsorbent bed of absorption type unit by the first triple valve 11 21, heat its desorption and produce vapor, now the first valve 32 and the second valve 27 are closed, Pressure in first adsorbent bed 21 constantly raises, until reaching the saturation pressure under condensation temperature, The second valve 27 is opened, under constant-pressure conditions, vapor constantly desorption comes out, and the 4th Condensed in adsorbent bed 24, the liquid condensed out enters the 3rd adsorbent bed 23.Close the second valve Door 27, cooling tower 17 processing after cooling water by cooling water pump 18, the 3rd stop valve 19, 9th stop valve 25, the tenth stop valve 28, the 11st stop valve 31, the 12nd stop valve 34, 4th stop valve 20 cools down to the 4th adsorbent bed 24 and the second adsorbent bed 22, and second inhales The saturation pressure that pressure in attached bed 22 is down under evaporating temperature.The first valve 32 is opened, the Liquid in three adsorbent beds 23 seethes with excitement because pressure is die-offed, and so as to sweat cooling, comes from The backwater of air-treatment unit 3 through the second stop valve 6 enter the 3rd adsorbent bed 23 cooling after, Chilled water pump 5 returns to air-treatment unit 3.The gas that 3rd adsorbent bed 23 is evaporated It is adsorbed to enter the second adsorbent bed 22, the first valve 32 is closed.To complete continuous cooling, The backwater of data center is now needed to heat the second adsorbent bed 22 by the second triple valve 10 and solved Inhale, open the first valve 32, caused vapor condenses into the 3rd adsorbent bed 23, condenses Liquid enters the 4th adsorbent bed 24.The first valve 32 is closed, cooling water is by the 3rd cut-off Valve 19, the 5th stop valve 26, the 6th stop valve 29, the 7th stop valve 30, the 8th stop valve 33rd, the 4th stop valve 20 cools down to the first adsorbent bed 21 and the 3rd adsorbent bed 23.Beat Open the second valve 27, the liquid in the 4th adsorbent bed 24 seethes with excitement because pressure is die-offed, from And sweat cooling, the backwater from air-treatment unit 3 enter the 4th through the first stop valve 7 and inhaled After attached bed 24 cools down, chilled water pump 5 returns to air-treatment unit 3.4th adsorbent bed 24 The gas being evaporated enters the first adsorbent bed 21 and is adsorbed, and the second valve 27 is closed.Such as The load of fruit data center can be undertaken by absorption type refrigerating completely, then the He of the first triple valve 11 Second triple valve 10 is weighed to AC to standard-sized sheet, backwater after absorption type unit by warm water pump 12 It is new to be sent to rack refrigeration;If the load of data center needs absorption type refrigerating and domestic hot-water to be total to With undertaking, then the first triple valve 11 and the second triple valve 10 be to ABC in threeway state, A part of backwater passes through absorption type unit, and a part passes through domestic hot-water's case 13 and plate-type heat-exchange Device 14 exchanges heat.The triple valve 16 of 14 opposite side of plate type heat exchanger the 3rd and the 4th triple valve 15 to Heat is discharged in air by AB to standard-sized sheet by cooling tower 17.
2. transition season pattern
Preferably, transition season is also to be total to using adsorption chiller and natural cooling source It is same to undertake data center room internal loading, and domestic hot-water's case 13 is heated using waste heat, Its method of operation and aestival aspect are same.Difference is unlatching hot-pipe system, utilizes outdoor natural Low-temperature receiver and the co- controlling indoor temperature of air-treatment unit 3.It is simultaneously cold caused by absorption type unit Amount can isolate the confession that a part is used for other data center regions by the 6th triple valve 45 It is cold.
3. winter mode
Preferably, winter is entered using hot-pipe system to data center room temperature completely Row control, cooling tower are intake to reduce warm water loop, make full use of extraneous a large amount of natural cooling sources, Close absorption unit.First triple valve 11 and the second triple valve 10 close to AB to standard-sized sheet Adsorption chiller is closed, the 3rd stop valve 19 and the 4th stop valve 20 are closed, data center Backwater is directly sent after domestic hot-water's case 13, plate type heat exchanger 14 exchange heat by warm water pump 12 Enter rack.The opposite side of plate type heat exchanger 14, if panel type heating system can undertake data Central concentrated load, then the 3rd triple valve 16 and the 4th triple valve 15 are to BC to standard-sized sheet;If need Radiant heating system and natural cooling source shared are wanted, then the 3rd triple valve 16 and the 4th threeway Valve 15 is to ABC in threeway state, and according to payload, regulation enters two-part stream Amount.
Embodiment 2:
It is the structural representation of the embodiment of the present invention referring to Fig. 4, control method is as follows:
Detection module:Utilize temperature sensor 35,36,37,38,39,40,41,42 Dry-bulb temperature T outside sensing chamber respectively1, indoor return air temperature T2, 1. loop enter return water temperature T3、 T4, 2. loop enter return water temperature T5、T6, 3. loop enter return water temperature T7、T8;Using relative Humidity sensor 43 detects outside relative humidity φ1
Intelligent control module:System control sytsem is made up of three parts:1st, mode deciding module; 2nd, unit control module is adsorbed;3rd, operation control module.Specific control is as follows:
Step A:
Part I is mode deciding module, and the effect of this module is to judge whether outdoor has foot Enough natural cooling sources use for data center, so as to control related valve, select different operations Pattern.Specific control method:Outdoor dry-bulb temperature T is obtained by detection module1, outdoor phase To humidity φ1, outdoor wet-bulb temperature T is calculated using the calculating formula of linearisations1, specific calculating formula:
It is describedIt is in relative humidity φ1Under correlated fitting coefficient, based on standard The data of database least square fitting.
a1、Ts1> T2- 5, summer mode is selected, that is, the pattern 1 in 1 is embodied, and Pass to next control module mode signal S1=1, the 4th triple valve 15, the 3rd triple valve 16 To AB to conducting, C opens warm water pump 12, cooling water pump 18, chilled water pump to being not turned on 5, the 3rd shutoff valve 19, the 4th stop valve 20 are opened;
A2,10 < Ts1< T2- 5, conditioning in Transition Season pattern is selected, that is, the pattern 2 in 1 is embodied, And pass to next control module mode signal S2=1, the 4th triple valve 15, the 3rd triple valve 16 to AB to conducting, and C opens warm water pump 12, cooling water pump 18, chilled water to being not turned on Pump 5, the 3rd shutoff valve 19, the 4th stop valve 20 are opened;
a3、Ts1< 10, winter mode is selected, that is, be embodied the pattern in 1,3, and transmit Next control module mode signal S3=1, the 4th triple valve 15, the 3rd triple valve 16 are to ABC To conducting, warm water pump 12, cooling water pump 18 are opened, closes chilled water pump 5, the 3rd cut-off Valve 19, the 4th stop valve 20 are opened.
Step B:
Part II is absorption unit control module, and absorption unit control module is mainly considered The characteristic of absorption refrigeration is, it is necessary to switch the purpose that adsorbent bed reaches continuous output cold.Specific control Method processed:The supply and return water temperature T in 2. loop is obtained by measurement module5、T6, pass through previous step Rapid acquisition model signal S, if S3=1, then following action is skipped, into step C, is otherwise held Row the following steps:Calculate Δ T1=| T5-T6|, when detecting Δ T1<At 1 DEG C, another is switched to Adsorbent bed, specific control action:
B1, the 3rd adsorbent bed 23 output cold:1. first triple valve 11 returns to AC to conducting Road water enters the first adsorbent bed 21, and the second triple valve 10 is closed, referring to the 9th section inside Fig. 2 Only valve 25, the tenth stop valve 28, the 11st stop valve 31, the 12nd stop valve 34 are opened, 5th stop valve 26, the 6th stop valve 29, the 7th stop valve 30, the 8th stop valve 33 close Close;
B2, the 4th adsorbent bed 24 output cold:1. second triple valve 10 returns to AC to conducting Road water enters the second adsorbent bed 22, and the first triple valve 11 is closed, referring to the 5th section inside Fig. 2 Only valve 26, the 6th stop valve 29, the 7th stop valve 30, the 8th stop valve 33 are opened, the Nine stop valves 25, the tenth stop valve 28, the 11st stop valve 31, the 12nd stop valve 34 Close.
Second valve 27, the first valve 32 are pressure switch, feedback signal is first respectively, The pressure signal of 4th adsorbent bed 21,24 and second, third adsorbent bed 22,23, by testing Regulate, this control system is not configured to it.
Step C:
Part III is operation control module, and this part is based on above controlling, it is contemplated that The complexity of system, to avoid system frequent switching, controlled using a kind of intelligent successive optimization. Specific control method:
C1, summer mode:Summer outdoor temperature is higher than indoor temperature, or the temperature difference is too small, heat Guard system is performed poor, and natural coldness resource utilizing system mainly opens cooling tower.Inhaled so opening Attached formula refrigeration unit, close hot-pipe system.Second triple valve 10 or the first triple valve first 11 (being switched by Part II control system) AC are turned on, and B is not turned on;Then by detecting mould Block feeds back 1. loop supply and return water temperature T3And T4, calculate Δ T2=| T3-T4|, if T2Steadily, Δ T2>=6 DEG C, 4th triple valve 15, the 3rd triple valve 16 are closed, and adjustment cooling water pump 18 arrives design discharge Vs, the following steps are skipped, keep the currently employed control strategy progressively adjusted:
(1) 2. loop supply and return water temperature T is fed back by detection module5、T6, 3. loop cooling Water inflow temperature T7, and calculate hot water amount V needed for absorption unit:
COP=a+b θ
The θ refers to absorption unit temperature coefficient, and a, b are the most young waiters in a wineshop or an inn based on experimental data Multiply fitting coefficient, COP refers to adsorbing unit coefficient of refrigerating performance, obtained cold and institute's calorific requirement The ratio between, V2It is the design discharge in 2. loop.
Second triple valve 10 or the first triple valve 11 adjust triple valve to AB to conducting Aperture, ensure that AC directional flows are V.
(2) constant feedback 1. loop supply and return water temperature T3And T4, calculate Δ T2=| T3-T4|, protect Demonstrate,prove Δ T2=| T3-T4|=5~7 DEG C, it is adjusted by the frequency of cooling water pump 18 using PID controller Flow;
C2, transition season pattern:The extraneous presence of transition season necessarily can directly utilize natural cooling source, The natural cooling source in the external world is utilized by heat pipe, cooling tower, adsorption chiller is opened, opens Open hot-pipe system.Wherein, 2. the chilled water circuit of adsorption chiller output, passes through the 6th Triple valve 45, the 5th triple valve 44 supply to an ABC conducting parts to other regions of data center Cold, other operation controls are as follows, using progressively adjusting control strategy:
(1) hot water amount V controls needed for absorption unit are calculated to control with c1 summer mode, the Two triple valves 10 or the first triple valve 11 adjust threeway valve opening to AB to conducting, Ensure that AC directional flows are V.
(2) constant feedback 1. loop supply and return water temperature T3And T4, calculate Δ T2=| T3-T4|, protect Demonstrate,prove Δ T2=| T3-T4|=5-7 DEG C, the flow of cooling tower 17 is controlled using PID controller, that is, is controlled The flow of cooling water pump 18;Constant feedback indoor return air temperature T2, controlled using PID controller The outdoor fan flow of air-cooled heat pipe.
C3, winter mode:Winter opens hot-pipe system to control temperature in computer room, closes absorption Unit, heat pipe cool down the same c2 of control of tower section.Winter mode is also needed to data center module Heat be applied to floor panel heating, redundance is then to utilize the natural cooling source band of cooling tower 17 Walk.In view of the comfortableness of attendant people, acquisition needs the surface temperature in the region heated Ts, to avoid the regulation of cooling water pump 18 from bringing aperture frequently to adjust, it is empty to reserve certain temperature Between, it is controlled using PID controller, control strategy is as follows:
(1)24℃≤Ts≤ 26 DEG C, the 4th triple valve 15, the 3rd triple valve 16 is kept to open Degree;
(2)Ts24 DEG C of <, increase the 4th triple valve 15, the stream in the 3rd triple valve 16B directions Amount, that is, adjust the 4th triple valve 15, the aperture of the 3rd triple valve 16;
(3)Ts26 DEG C of >, reduce the 4th triple valve 15, the stream in the 3rd triple valve 16B directions Amount, that is, adjust the 4th triple valve 15, the aperture of the 3rd triple valve 16.
When in winter mode, if the system is in cold district, the ground that winter water can freeze Area, the also seasonable return water temperature T for monitoring 3. loop8, such as T8<2 DEG C and T8Fall off rate is fast, then Need the antifreezing measures of unlatching cooling tower.
Described above is the preferred embodiment of the present invention, it is noted that for the art Those of ordinary skill for, on the premise of principle of the present invention is not departed from, can also make Go out some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.

Claims (9)

1. a kind of data center's integrative cooling system based on waste heat recovery, including residual neat recovering system, Hot water supply system, natural coldness resource utilizing system, heating system and adsorption refrigeration system, its It is characterised by:
The residual neat recovering system and hot water supply system are by data center's rack (2), the one or three Port valve (11), the second triple valve (10), boiler (13), plate type heat exchanger (14), temperature Water pump (12) is formed by connecting by pipeline;
Natural coldness resource utilizing system is made up of separate microchannel thermotube system and cooling tower systems, Wherein described hot-pipe system includes indoor set (4), tracheae, liquid pipe, micro-channel heat exchanger, room Inside and outside blower fan;The cooling tower systems are by cooling tower (17), cooling water pump (18), the three or three Port valve (16), plate type heat exchanger (14), the 4th triple valve (15) are formed by connecting by pipeline;
The heating system is in parallel with the cooling tower systems, by the 3rd triple valve (16) and 4th triple valve (15) adjusts two parts flow;
The adsorption refrigeration system include the first adsorbent bed (21), the second adsorbent bed (22), First valve (32), the 3rd adsorbent bed (23), the 4th adsorbent bed (24), the second valve (27), Driving heat source is handed over alternately across the first triple valve (11) and the second triple valve (10), chilled water For by the first stop valve (7), the 4th adsorbent bed (24) and the second stop valve (6), the 3rd It is sent to after adsorbent bed (23) cooling through chilled water pump (5), the 6th triple valve (45) at air Manage unit (3) and other district coolings;
The heat of adsorption and condensation heat of adsorption refrigeration system are successively by cooling water pump (18), the Three stop valves (19), the 5th stop valve (26), the first adsorbent bed (21), the 6th stop valve (29), the 7th stop valve (30), the 3rd adsorbent bed (23), the 8th stop valve (33), Four stop valves (20) or the 3rd stop valve (19), the 9th stop valve (25), the 4th absorption Bed (24), the tenth stop valve (28), the 11st stop valve (31), the second adsorbent bed (22), 12nd stop valve (34), the 4th stop valve (20) are entered in cooling tower (17).
A kind of 2. data center's synthesis cooling system based on waste heat recovery according to claim 1 System, it is characterised in that:Cooling system is divided into air-cooled and water cooling, wherein air-cooled utilize absorption type system Return air in cooling system and micro channel heat guard system cooling chamber;Water cooling is cold using 55~60 DEG C of warm water But rack CPU.
A kind of 3. data center's synthesis cooling system based on waste heat recovery according to claim 1 System, it is characterised in that:The adsorption refrigeration system uses returning for 60~65 DEG C of data center Water alternately heats the first adsorbent bed (23) and the second adsorbent bed (24) is complete as driving heat source Into continuous cooling.
A kind of 4. data center's synthesis cooling system based on waste heat recovery according to claim 3 System, it is characterised in that:The unit of the adsorption refrigeration system be divided into upside cavity (8) and Downside cavity (9), the second adsorbent bed (22) and the 3rd adsorbent bed (23) are in upside cavity (8); First adsorbent bed (21) and the 4th adsorbent bed (24) are in downside cavity (9);The recruitment of system institute Verify as silica gel-water, minimum 55 DEG C of actuation temperature.
A kind of 5. data center's synthesis cooling system based on waste heat recovery according to claim 1 System, it is characterised in that:Utilize the backwater heating domestic hot water of data center.
A kind of 6. data center's synthesis cooling system based on waste heat recovery according to claim 1 System, it is characterised in that:The adsorption refrigeration system is in parallel with boiler and plate type heat exchanger, Two parts flow is adjusted by the first triple valve (11) and the second triple valve (10).
A kind of 7. data center's synthesis cooling system based on waste heat recovery according to claim 1 System, it is characterised in that:When the adsorption refrigeration system transition season is opened, a cold part For the indoor temperature at control data center, a part is used for other district coolings, passes through the 5th Triple valve (44) and the 6th triple valve (45) regulation flow.
A kind of 8. data center's synthesis cooling system based on waste heat recovery according to claim 1 System, it is characterised in that:The hot-pipe system is microchannel separate heat pipe, in the winter time and transition Season opens, for control data center indoor temperature.
A kind of 9. data center's integrative cooling system based on waste heat recovery as claimed in claim 1 Control method, it is characterised in that:Using modularity control, using indoor/outdoor temperature-difference to preferred Operational mode carries out automatic decision switching;Using unit temperature, pressure feedback is adsorbed, to adsorption machine Group realizes continuous cooling;Fed back using each loop temperature, it is excellent using progressively adjusting to whole system Change strategy, a kind of purpose of approximate area-wide optimal control is issued in various constraintss.
CN201610526411.3A 2016-07-04 2016-07-04 A kind of data center's integrative cooling system and its control method based on waste heat recovery Pending CN107580443A (en)

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CN108566761A (en) * 2018-01-26 2018-09-21 青岛理工大学 It is a kind of using the data center module heat extraction of cabinet-level heat pipe and waste heat utilization system
CN108631186A (en) * 2018-05-30 2018-10-09 山东翔晟电力工程有限公司 Environment-friendly and energy-efficient power transformation box
CN109757903A (en) * 2019-01-09 2019-05-17 青岛海尔空调器有限总公司 The control method that a kind of energy resource system and its bed body temperature are adjusted
CN109757904A (en) * 2019-01-09 2019-05-17 青岛海尔空调器有限总公司 A kind of control method of energy resource system
CN111077957A (en) * 2019-11-14 2020-04-28 苏州浪潮智能科技有限公司 Multi-way server cooling system
CN111417283A (en) * 2020-03-13 2020-07-14 苏州浪潮智能科技有限公司 Fresh air type heat recovery data center cooling system
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CN112503666A (en) * 2020-12-07 2021-03-16 珠海格力电器股份有限公司 Natural cooling unit control method, device and equipment and cooling system
CN113324348A (en) * 2021-06-08 2021-08-31 华电国际电力股份有限公司天津开发区分公司 Adsorption heat pump based cooling, heating and power combined supply system and method utilizing coal-fired flue gas

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CN108566761A (en) * 2018-01-26 2018-09-21 青岛理工大学 It is a kind of using the data center module heat extraction of cabinet-level heat pipe and waste heat utilization system
CN108566761B (en) * 2018-01-26 2019-11-08 青岛理工大学 It is a kind of using the data center computer room heat extraction of cabinet-level heat pipe and waste heat utilization system
CN108631186A (en) * 2018-05-30 2018-10-09 山东翔晟电力工程有限公司 Environment-friendly and energy-efficient power transformation box
CN109757903A (en) * 2019-01-09 2019-05-17 青岛海尔空调器有限总公司 The control method that a kind of energy resource system and its bed body temperature are adjusted
CN109757904A (en) * 2019-01-09 2019-05-17 青岛海尔空调器有限总公司 A kind of control method of energy resource system
CN109757903B (en) * 2019-01-09 2022-03-29 青岛海尔空调器有限总公司 Energy system and control method for adjusting temperature of bed body thereof
CN111077957A (en) * 2019-11-14 2020-04-28 苏州浪潮智能科技有限公司 Multi-way server cooling system
CN111077957B (en) * 2019-11-14 2021-07-30 苏州浪潮智能科技有限公司 Multi-way server cooling system
CN111417283A (en) * 2020-03-13 2020-07-14 苏州浪潮智能科技有限公司 Fresh air type heat recovery data center cooling system
CN112333989A (en) * 2020-11-11 2021-02-05 上海交通大学 Microchannel liquid cooling coupling air cooling system suitable for high heat density data center
CN112503666A (en) * 2020-12-07 2021-03-16 珠海格力电器股份有限公司 Natural cooling unit control method, device and equipment and cooling system
CN112503666B (en) * 2020-12-07 2022-03-01 珠海格力电器股份有限公司 Natural cooling unit control method, device and equipment and cooling system
CN113324348A (en) * 2021-06-08 2021-08-31 华电国际电力股份有限公司天津开发区分公司 Adsorption heat pump based cooling, heating and power combined supply system and method utilizing coal-fired flue gas

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