CN105135746B - Chilled water afterheat recycling system and method for data center - Google Patents
Chilled water afterheat recycling system and method for data center Download PDFInfo
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- CN105135746B CN105135746B CN201510598813.XA CN201510598813A CN105135746B CN 105135746 B CN105135746 B CN 105135746B CN 201510598813 A CN201510598813 A CN 201510598813A CN 105135746 B CN105135746 B CN 105135746B
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
Abstract
The invention discloses a kind of chilled water afterheat recycling system and method for data center, wherein system includes chilled water water circulating pump, refrigeration unit, with cold unit and with hot cell, wherein chilled water water circulating pump, for being pressurizeed to chilled water backwater；Refrigeration unit, for by by chilled water water circulating pump pressurization after chilled water backwater cooled, and by the chilled water backwater after cooling by feed pipe to being supplied water with cold unit；It is cold for according to water supply release with cold unit, and using release it is cold after water supply be delivered to hot cell for backwater as chilled water residual heat recovery；With hot cell, for being preheated according to waste heat of the chilled water residual heat recovery for backwater, and the chilled water residual heat recovery after being preheated is delivered to chilled water water circulating pump for backwater as backwater.The system reduces configuration and the energy consumption of data center's firing equipment, improves the efficiency of energy utilization of data center by carrying out reuse to chilled water waste heat to reduce refrigeration unit energy consumption.
Description
Technical field
The present invention relates to data center's technical field, more particularly to a kind of chilled water residual heat recovery system for data center
System and method.
Background technology
With the constantly soaring of energy cost and people are to green attention, and data center's energy saving requirement is increasingly
Strongly, that is, data center machine room IT (Internet Technology, Internet technology) equipment safety, high-performance fortune are being ensured
On the premise of row, various energy saving means are comprehensively utilized, improve the efficiency of energy utilization of data center, reduce PUE (Power
Usage Effectiveness, power supply service efficiency).Pursued as can be seen that energy-saving and emission-reduction have turned into data center's infrastructure
One of target.
In data center, refrigeration unit provides chilled water to air conditioning terminal to carry out continued down to information technoloy equipment, in the mistake
Cheng Zhong, the ratio that refrigeration unit energy consumption accounts for consumption of data center is very high, if the ratio is 40% or so, it can be seen that refrigeration unit
Energy consumption is serious.Therefore, it is most important for reducing PUE how to reduce refrigeration unit energy consumption.
The content of the invention
The purpose of the present invention is intended at least solve one of above-mentioned technical problem to a certain extent.
Therefore, first purpose of the present invention is to propose a kind of chilled water afterheat recycling system for data center.
The system reduces the configuration of data center's firing equipment by carrying out reuse to chilled water waste heat to reduce refrigeration unit energy consumption
And energy consumption, the efficiency of energy utilization of data center is improved, reduces PUE, so as to reduce project initial cost.
Second object of the present invention is to propose a kind of chilled water residual heat recovery method for data center.
To achieve these goals, the chilled water residual heat recovery system for data center of first aspect present invention embodiment
System, including：Chilled water water circulating pump, refrigeration unit, with cold unit and with hot cell, wherein, the chilled water water circulating pump, use
Pressurizeed in chilled water backwater；The refrigeration unit, the refrigeration unit pass through return pipe and the chilled water recirculated water
Pump is connected, for the chilled water backwater after chilled water water circulating pump pressurization to be cooled, and will be cold after cooling
Freeze water backwater to be supplied water with cold unit to described by feed pipe；The cold unit, for being released according to the water supply
It is cold, and using release it is cold after water supply be delivered to the hot cell for backwater as chilled water residual heat recovery；It is described single with heat
Member, for being preheated according to the chilled water residual heat recovery for the waste heat of backwater, and the chilled water waste heat after being preheated
Reuse is delivered to the chilled water water circulating pump for backwater as the chilled water backwater.
The chilled water afterheat recycling system for data center of the embodiment of the present invention, can by refrigeration unit will through supercooling
The chilled water backwater frozen after the pressurization of water circulation water pump is cooled, and by the chilled water backwater after cooling by feed pipe to cold
Unit is supplied water, according to the water supply release with cold unit it is cold, and using release it is cold after water supply returned as chilled water waste heat
Hot cell is delivered to for backwater, is preheated with hot cell according to waste heat of the chilled water residual heat recovery for backwater, and will enter
Chilled water residual heat recovery after row preheating is delivered to chilled water water circulating pump for backwater as chilled water backwater, i.e., by freezing
Water waste heat carries out reuse to reduce refrigeration unit energy consumption, reduces configuration and the energy consumption of data center's firing equipment, improves number
According to the efficiency of energy utilization at center, PUE is reduced, so as to reduce project initial cost.
To achieve these goals, the chilled water residual heat recovery side for data center of second aspect of the present invention embodiment
Method, including：Chilled water backwater is received, and chilled water backwater is pressurizeed；The chilled water backwater after pressurization is dropped
Temperature, and control the chilled water backwater after cooling to be delivered to by feed pipe and supplied water with cold unit；Control the cold unit
According to the water supply release it is cold, and using release it is cold after water supply be delivered to heat singly for backwater as chilled water residual heat recovery
Member；Control it is described preheated with hot cell according to the chilled water residual heat recovery for the waste heat of backwater, and after being preheated
Chilled water residual heat recovery for backwater as the chilled water backwater.
The chilled water residual heat recovery method for data center of the embodiment of the present invention, can be by the chilled water after over pressurizeed
Backwater is cooled, and the chilled water backwater after cooling is transported to by feed pipe and supplied water with cold unit, controllable afterwards
System according to the water supply release with cold unit it is cold, and using release it is cold after water supply as chilled water residual heat recovery for backwater conveying
To with hot cell, and control is preheated with hot cell according to waste heat of the chilled water residual heat recovery for backwater, and will be preheated
Chilled water residual heat recovery afterwards supplies backwater as chilled water backwater, i.e., by carrying out reuse to chilled water waste heat to reduce refrigeration machine
Group energy consumption, reduces configuration and the energy consumption of data center's firing equipment, improves the efficiency of energy utilization of data center, reduce
PUE, so as to reduce project initial cost.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the structural representation of the chilled water afterheat recycling system according to an embodiment of the invention for data center
Figure；And
Fig. 2 is the flow chart of the chilled water residual heat recovery method according to an embodiment of the invention for data center.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used to realize specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Below with reference to the accompanying drawings the chilled water afterheat recycling system and method for data center of the embodiment of the present invention are described.
Fig. 1 is the structural representation of the chilled water afterheat recycling system according to an embodiment of the invention for data center
Figure.As shown in figure 1, the chilled water afterheat recycling system for being used for data center can include：Chilled water water circulating pump 10, refrigeration
Unit 20, with cold unit 30 and with hot cell 40.
Specifically, chilled water water circulating pump 10 can be used for pressurizeing to chilled water backwater.
Refrigeration unit 20 is connected by return pipe with chilled water water circulating pump 10, and refrigeration unit 20 can be used for that freezing will be passed through
Chilled water backwater after water circulation water pump 10 pressurizes is cooled, and by the backwater after cooling by feed pipe to cold unit 30
Supplied water.
More specifically, refrigeration unit 20 can be dropped the chilled water backwater after chilled water water circulating pump 10 pressurizes
Temperature, and the chilled water backwater after cooling is connected to each cold unit 30 by valve group 2 and chilled water feed pipe.It can manage
Solution, refrigeration unit 20 carry out cooling processing, while the power consumption and chilled water of refrigeration unit 20 to chilled water by consuming electric energy
Backwater to supply water the temperature difference it is directly proportional, that is to say, that the return water temperature after cooling is lower, refrigeration unit 20 consume electric energy get over
It is more.
Can be used for according to above-mentioned water supply release with cold unit 30 it is cold, and using release it is cold after water supply as more than chilled water
Hot reuse is delivered to hot cell 40 for backwater.Specifically, in an embodiment of the present invention, can be by supplying back with cold unit 30
Chilled water residual heat recovery is delivered to hot cell 40 by water pipe for backwater.Wherein, the caliber of the caliber for return pipe and return pipe
It is identical.Thus, air-conditioner water system circulation can be achieved and to need cooling room cooling.
It can be used for being preheated for the waste heat of backwater according to chilled water residual heat recovery with hot cell 40, and after being preheated
Chilled water residual heat recovery be delivered to chilled water water circulating pump 10 as backwater for backwater.It is appreciated that passed through with cold unit 30
Using the chilled water after being cooled release it is cold after, now the temperature of chilled water can improve, and will can now be entered with cold unit 30
Row release it is cold after chilled water be supplied to hot cell 40 for backwater as chilled water residual heat recovery.It is cold using this with hot cell 40
The heat for freezing water residual heat recovery for backwater preheats to itself, while the chilled water residual heat recovery also obtains for the temperature of backwater
Reduce, and the chilled water residual heat recovery after temperature is reduced is connected to chilled water recirculated water as backwater for backwater by water return pipeline
Pump 10, to complete the circulation of a chilled water.
In order that the more hommization of chilled water afterheat recycling system is obtained, can be in chilled water water return pipeline close to refrigeration unit one
The end increase switch valve of side, specifically, in one embodiment of the invention, as shown in figure 1, this is used for data center
Chilled water afterheat recycling system may also include：First switch valve 50, the second switch valve 60 and the 3rd switch valve 70.Its
In, in an embodiment of the present invention, as shown in figure 1, one end of the first switch valve 50 is connected with the backwater end of cold unit 30,
The other end of first switch valve 50 is connected with the water supply end of hot cell 40；One end of second switch valve 60 and the first switching
The other end of valve 50 is connected；One end of 3rd switch valve 70 is respectively with the other end of the second switch valve 60 and using hot cell
40 backwater end is connected, and the other end of the 3rd switch valve 70 is connected with chilled water water circulating pump 10.Wherein, the first switch valve
50th, the second switch valve 60 and the 3rd switch valve 70 are arranged on the backwater between cold unit 30 and chilled water water circulating pump 10
Guan Shang and the end of the close side of chilled water water circulating pump 10.
Specifically, in an embodiment of the present invention, the chilled water afterheat recycling system may also include the (figure of control module 80
Not shown in 1), control module 80 can be used for being needed according to chilled water residual heat recovery for more than backwater with hot cell 40 detecting
When heat is preheated, the second switch valve 60 is closed, while open the first switch valve 50 and the 3rd switch valve 70.In this hair
In bright embodiment, control module 80 can also be used to be supplied back according to chilled water residual heat recovery with hot cell 40 detecting
When the waste heat of water is preheated, the second switch valve 60 is opened, simultaneously closes off the first switch valve 50 and the 3rd switch valve 70.
In an embodiment of the present invention, control module 80 can be by whether receiving the chilled water sent with hot cell 40 makes
Whether need to be preheated according to waste heat of the chilled water residual heat recovery for backwater with hot cell 40 to detect with request, if receiving
Arrive, then can determine that needs to be preheated according to waste heat of the chilled water residual heat recovery for backwater with hot cell 40, otherwise can determine that use
Hot cell 40 need not be preheated according to waste heat of the chilled water residual heat recovery for backwater.
More specifically, when control module 80 closes the second switch valve 60, while the first switch valve 50 and the 3rd of unlatching
During switch valve 70, the first switching valve can be passed through as chilled water residual heat recovery for backwater by flowing through by the use of the chilled water after cold unit 30
Door 50 is flowed into and uses hot cell 40, and the heat of backwater is supplied to itself carrying out in advance using the chilled water residual heat recovery with hot cell 40
Heat, while the chilled water residual heat recovery is also reduced for the temperature of backwater, and the chilled water residual heat recovery after temperature is reduced
Chilled water water circulating pump 10 is flowed into by the 3rd switch valve 70 as chilled water backwater for backwater.
When the second switch valve 60 of unlatching of control module 80, the first switch valve 50 and the 3rd switch valve 70 are simultaneously closed off
When, flow through by the use of the chilled water after cold unit 30 directly can flow into chilled water water circulating pump as backwater by the second switch valve 60
10.Thus, the control of chilled water residual heat recovery can be realized by above-mentioned switch valve, realizes freezing water to water system circulation,
It is embodied as simultaneously with cold unit and with hot cell cooling and heat supply.
Optionally, in an embodiment of the present invention, as shown in figure 1, the chilled water afterheat recycling system may also include fresh air
Unit 90, Fresh air handling units 90 can be used for providing fresh air for data center.Wherein, in an embodiment of the present invention, with cold list
Member 30 can be the surface cooler 91 in Fresh air handling units 90, can be the preheating coil pipe 92 in Fresh air handling units 90 with hot cell 40.It can manage
Solve, the preheating coil pipe 92 in Fresh air handling units 90 can be to be preheated from the fresh air of outdoor introduction in the winter time, avoid water pond in unit
Pipe freezes and fresh air carries out first time heating, reduces the thermic load that single hot coil is undertaken, avoids single coil ability mistake
Greatly, cause system unstable.
That is, refrigeration unit 20 can be dropped the chilled water backwater after chilled water water circulating pump 10 pressurizes
Temperature, and the chilled water backwater after cooling is connected to by valve group 2 and chilled water feed pipe to the surface cooler in Fresh air handling units 90
91, to realize air-conditioner water system circulation and be to need cooling room cooling.
In an embodiment of the present invention, the preheating coil pipe 92 in Fresh air handling units 90 can supply backwater by chilled water residual heat recovery
Heat preheated for fresh air, the temperature of fresh air is preheated the temperature that chilled water residual heat recovery while coil pipe 92 preheats supplies backwater
Degree is also reduced, and is reduced the thermic load of new wind mechanical heating, is reduced computer room thermal power plant unit capacity, reduces thermal power plant unit operation
Energy consumption, simultaneously because chilled water water supply water temperature difference reduces, so refrigeration unit operation energy consumption is also reduced, realize data
The energy-saving and emission-reduction at center, and decrease data center and purchase thermal power plant unit and lay the initial cost of heat supply pipeline.
The chilled water afterheat recycling system for data center of the embodiment of the present invention, can by refrigeration unit will through supercooling
The chilled water backwater frozen after the pressurization of water circulation water pump is cooled, and by the chilled water backwater after cooling by feed pipe to cold
Unit is supplied water, according to the water supply release with cold unit it is cold, and using release it is cold after water supply returned as chilled water waste heat
Hot cell is delivered to for backwater, is preheated with hot cell according to waste heat of the chilled water residual heat recovery for backwater, and will enter
Chilled water residual heat recovery after row preheating is delivered to chilled water water circulating pump for backwater as chilled water backwater, i.e., by freezing
Water waste heat carries out reuse to reduce refrigeration unit energy consumption, reduces configuration and the energy consumption of data center's firing equipment, improves number
According to the efficiency of energy utilization at center, PUE is reduced, so as to reduce project initial cost.
In order to realize above-described embodiment, the invention also provides a kind of chilled water residual heat recovery side for data center
Method.
Fig. 2 is the flow chart of the chilled water residual heat recovery method according to an embodiment of the invention for data center.
It should be noted that the method for the embodiment of the present invention can be applied to the chilled water for data center of any of the above-described individual embodiment
Afterheat recycling system, the chilled water afterheat recycling system may include chilled water water circulating pump, refrigeration unit, with cold unit and with heat
Unit etc..
As shown in Fig. 2 the chilled water residual heat recovery method for being used for data center can include：
S201, chilled water backwater is received, and chilled water backwater is pressurizeed.
For example, can by chilled water water circulating pump receive with cold unit or with hot cell conveying chilled water backwater, and
Chilled water backwater can be pressurizeed.It is appreciated that the temperature of chilled water backwater now is general higher, such as temperature value is more than
10 degree.
S202, the chilled water backwater after pressurization is cooled, and control the chilled water backwater after cooling to pass through feed pipe
It is delivered to and is supplied water with cold unit.
Specifically, the chilled water backwater after pressurization can be cooled by refrigeration unit, and by the chilled water after cooling
Backwater is connected to by feed pipe and each it supplied water with realizing with cold unit.
Wherein, in an embodiment of the present invention, refrigeration unit can be connected by return pipe with chilled water water circulating pump.More
Body, refrigeration unit can be cooled the chilled water backwater after the pressurization of chilled water water circulating pump, and by returning after cooling
Water is connected to each cold unit by valve group and chilled water feed pipe.It is appreciated that refrigeration unit by consume electric energy come pair
Chilled water carries out cooling processing, while the power consumption of refrigeration unit is directlyed proportional to the backwater of chilled water to the temperature difference to supply water, that is,
Say, the return water temperature after cooling is lower, and the electric energy of refrigeration unit consumption is more.
S203, control according to above-mentioned water supply release with cold unit it is cold, and using release it is cold after water supply as chilled water
Residual heat recovery is delivered to hot cell for backwater.
Specifically, in an embodiment of the present invention, can control with cold unit by returning chilled water waste heat for return pipe
Hot cell is delivered to for backwater.Wherein, it is identical for the caliber of return pipe and the caliber of return pipe.It is appreciated that with cold list
Member by using the chilled water after being cooled release it is cold after, now the temperature of chilled water can improve, now can with cold unit
Using release it is cold after chilled water be supplied to hot cell for backwater as chilled water residual heat recovery.Thus, air conditioner water can be achieved
System circulation and to need cooling room cooling.
S204, control is preheated with hot cell according to waste heat of the chilled water residual heat recovery for backwater, and will be preheated
Chilled water residual heat recovery afterwards is for backwater as chilled water backwater.
Specifically, controllable hot cell is entered using heat of the chilled water residual heat recovery for backwater to hot cell itself
Row preheating, while the chilled water residual heat recovery is also reduced for the temperature of backwater, and the chilled water waste heat after temperature is reduced
Reuse is connected to chilled water water circulating pump as chilled water backwater for backwater by water return pipeline, with following for chilled water of completion
Ring.
In order that the more hommization of chilled water residual heat recovery mode is obtained, can be in chilled water water return pipeline close to refrigeration unit one
The end increase switch valve of side, specifically, in one embodiment of the invention, with cold unit and chilled water water circulating pump
Between return pipe and close to the end of chilled water water circulating pump side, the first switch valve, the second switch valve and the are set
Three switch valves；Wherein, one end of the first switch valve is connected with the backwater end of cold unit, the other end of the first switch valve
It is connected with the water supply end of hot cell；One end of second switch valve is connected with the other end of the first switch valve；3rd switching
One end of valve is connected with the other end of the second switch valve and with the backwater end of hot cell respectively, the 3rd switch valve it is another
End is connected with chilled water water circulating pump.
Specifically, in an embodiment of the present invention, using release it is cold after water supply supplied as chilled water residual heat recovery
Backwater is delivered to before hot cell, and the chilled water residual heat recovery method may also include：Whether detection needs basis with hot cell
Chilled water residual heat recovery is preheated for the waste heat of backwater；If it is required, then using release it is cold after water supply as more than chilled water
Hot reuse is delivered to hot cell for backwater；If it is not required, then directly using release it is cold after water supply as chilled water backwater.
More specifically, need to be preheated according to waste heat of the chilled water residual heat recovery for backwater with hot cell when detecting
When, can close the second switch valve, while open the first switch valve and the 3rd switch valve, and by release it is cold after water supply
Hot cell is delivered to for backwater as chilled water residual heat recovery, so that handy hot cell can utilize chilled water residual heat recovery to supply
The waste heat of backwater is preheated；It need not be carried out in advance according to waste heat of the chilled water residual heat recovery for backwater with hot cell when detecting
When hot, the second switch valve can be opened, simultaneously close off the first switch valve and the 3rd switch valve, and will directly carry out releasing it is cold after
Water supply as chilled water backwater.
Wherein, in an embodiment of the present invention, request can be used with the chilled water that hot cell is sent by whether receiving
Whether need to be preheated according to waste heat of the chilled water residual heat recovery for backwater with hot cell to detect, can be true if receiving
Fixed to need to be preheated according to waste heat of the chilled water residual heat recovery for backwater with hot cell, otherwise can determine that need not with hot cell
Preheated according to waste heat of the chilled water residual heat recovery for backwater.
More specifically, when closing the second switch valve, while opening the first switch valve and three switch valves, flow through
By the use of the chilled water after cold unit can as chilled water residual heat recovery for backwater by the first switch valve inflow hot cell, with heat
Unit preheats using heat of the chilled water residual heat recovery for backwater to itself, while the chilled water residual heat recovery supplies back
The temperature of water is also reduced, and the chilled water residual heat recovery after temperature is reduced passes through the 3rd switching valve for backwater as backwater
Door flows into chilled water water circulating pump.
When opening the second switch valve, when simultaneously closing off the first switch valve and three switch valves, flow through with cold unit
Chilled water afterwards can be used as chilled water backwater directly to flow into chilled water water circulating pump by the second switch valve.Thus, can pass through
Above-mentioned switch valve realizes to realize the control of chilled water residual heat recovery and freezes water to water system circulation, while be embodied as with cold
Unit and with hot cell cooling and heat supply.
Optionally, in an embodiment of the present invention, can be the preheating coil pipe in Fresh air handling units with hot cell, can with cold unit
For the surface cooler in Fresh air handling units, the Fresh air handling units may be disposed at data center, and provide fresh air for data center.Can be with
Understand, the preheating coil pipe in Fresh air handling units can be to be preheated from the fresh air of outdoor introduction in the winter time, avoid water coil in unit
Freeze and fresh air carry out first time heating, reduce the thermic load that single hot coil is undertaken, avoid single coil ability excessive,
Cause system unstable.
That is, refrigeration unit can be cooled the chilled water backwater after the pressurization of chilled water water circulating pump, and
Surface cooler chilled water backwater after cooling being connected to by valve group and chilled water feed pipe in Fresh air handling units, to realize sky
Water transfer system circulates and to need cooling room cooling.
In an embodiment of the present invention, the preheating coil pipe in Fresh air handling units can supply the heat of backwater by chilled water residual heat recovery
Measure and preheated for fresh air, chilled water residual heat recovery also obtains for the temperature of backwater while the temperature of fresh air is preheated coil pipe preheating
To reduction, the thermic load of new wind mechanical heating is reduced, computer room thermal power plant unit capacity is reduced, reduces thermal power plant unit operation energy consumption,
Simultaneously because chilled water water supply water temperature difference reduces, so refrigeration unit operation energy consumption is also reduced, data center is realized
Energy-saving and emission-reduction, and decrease data center purchase thermal power plant unit and lay heat supply pipeline initial cost.
The chilled water residual heat recovery method for data center of the embodiment of the present invention, can be by the chilled water after over pressurizeed
Backwater is cooled, and the chilled water backwater after cooling is transported to by feed pipe and supplied water with cold unit, controllable afterwards
System according to the water supply release with cold unit it is cold, and using release it is cold after water supply as chilled water residual heat recovery for backwater conveying
To with hot cell, and control is preheated with hot cell according to waste heat of the chilled water residual heat recovery for backwater, and will be preheated
Chilled water residual heat recovery afterwards is for backwater as chilled water backwater i.e. by carrying out reuse to chilled water waste heat to reduce refrigeration machine
Group energy consumption, reduces configuration and the energy consumption of data center's firing equipment, improves the efficiency of energy utilization of data center, reduce
PUE, so as to reduce project initial cost.
In the description of the invention, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or dark
Show relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", the feature of " second " are defined
It can express or implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two,
Such as two, three etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (5)
1. a kind of chilled water afterheat recycling system for data center, it is characterised in that including chilled water water circulating pump, refrigeration
Unit, with cold unit, with hot cell and Fresh air handling units, wherein,
The chilled water water circulating pump, for being pressurizeed to chilled water backwater；
The refrigeration unit, the refrigeration unit is connected by return pipe with the chilled water water circulating pump, for that will pass through institute
State the chilled water backwater after the pressurization of chilled water water circulating pump to be cooled, and the chilled water backwater after cooling is passed through into feed pipe pair
It is described to be supplied water with cold unit；
The cold unit, it is cold for according to the water supply release, and using release it is cold after water supply as chilled water waste heat
Reuse is delivered to the hot cell for backwater；
It is described to use hot cell, for being preheated according to waste heat of the chilled water residual heat recovery for backwater, and will be preheated
Chilled water residual heat recovery afterwards is delivered to the chilled water water circulating pump for backwater as the chilled water backwater；
Wherein, it is described single by the way that the chilled water residual heat recovery is delivered into the heat for backwater for return pipe with cold unit
Member；Wherein, the caliber for return pipe is identical with the caliber of the return pipe；
The Fresh air handling units, for providing fresh air for the data center；
Wherein, it is described with cold unit be the Fresh air handling units in surface cooler, it is described with hot cell be the Fresh air handling units in
Preheat coil pipe.
2. it is used for the chilled water afterheat recycling system of data center as claimed in claim 1, it is characterised in that also include：
First switch valve, one end of first switch valve are connected with the backwater end with cold unit, and described first cuts
The other end for changing valve is connected with described with the water supply end of hot cell；
Second switch valve, one end of second switch valve are connected with the other end of first switch valve；
3rd switch valve, one end of the 3rd switch valve other end with second switch valve and the use respectively
The backwater end of hot cell is connected, and the other end of the 3rd switch valve is connected with the chilled water water circulating pump；
Wherein, first switch valve, the second switch valve and the 3rd switch valve be arranged on it is described with cold unit with it is described
On return pipe between chilled water water circulating pump and close to the end of the chilled water water circulating pump side.
3. it is used for the chilled water afterheat recycling system of data center as claimed in claim 2, it is characterised in that also include：
Control module, for detecting that the hot cell needs for the waste heat of backwater to enter according to the chilled water residual heat recovery
During row preheating, second switch valve is closed, while open first switch valve and the 3rd switch valve；
The control module is additionally operable to that described backwater need not be supplied according to the chilled water residual heat recovery with hot cell detecting
Waste heat when being preheated, open second switch valve, simultaneously close off first switch valve and the 3rd switching
Valve.
A kind of 4. chilled water residual heat recovery method for data center, it is characterised in that methods described is applied to right such as will
The chilled water afterheat recycling system any one of 1 to 3 is sought, methods described includes：
Chilled water backwater is received, and the chilled water backwater is pressurizeed；
The chilled water backwater after pressurization is cooled, and controls the chilled water backwater after cooling to be delivered to by feed pipe
Supplied water with cold unit；
Control it is described according to the water supply release with cold unit it is cold, and using release it is cold after water supply as chilled water waste heat time
Hot cell is delivered to for backwater；
Control it is described preheated with hot cell according to the chilled water residual heat recovery for the waste heat of backwater, and after being preheated
Chilled water residual heat recovery for backwater as the chilled water backwater；
Wherein, it is described single by the way that the chilled water residual heat recovery is delivered into the heat for backwater for return pipe with cold unit
Member；Wherein, the caliber for return pipe is identical with the caliber of the return pipe；
Wherein, the chilled water afterheat recycling system includes Fresh air handling units, the Fresh air handling units, for being carried for the data center
For fresh air；
Wherein, it is described with cold unit be the Fresh air handling units in surface cooler, it is described with hot cell be the Fresh air handling units in
Preheat coil pipe.
5. it is used for the chilled water residual heat recovery method of data center as claimed in claim 4, it is characterised in that will released
Before water supply after cold is delivered to hot cell as chilled water residual heat recovery for backwater, methods described also includes：
Whether detect described needs to be preheated for the waste heat of backwater according to the chilled water residual heat recovery with hot cell；
If it is required, then using release it is cold after water supply be delivered to hot cell for backwater as chilled water residual heat recovery；
If it is not required, then directly using release it is cold after water supply as the chilled water backwater.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510598813.XA CN105135746B (en) | 2015-09-18 | 2015-09-18 | Chilled water afterheat recycling system and method for data center |
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| CN201510598813.XA CN105135746B (en) | 2015-09-18 | 2015-09-18 | Chilled water afterheat recycling system and method for data center |
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| CN105135746A CN105135746A (en) | 2015-12-09 |
| CN105135746B true CN105135746B (en) | 2017-11-17 |
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| CN201510598813.XA Active CN105135746B (en) | 2015-09-18 | 2015-09-18 | Chilled water afterheat recycling system and method for data center |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107525184A (en) * | 2017-10-23 | 2017-12-29 | 北京百度网讯科技有限公司 | Energy supplying system based on data center's waste heat |
| CN113251576B (en) * | 2021-05-18 | 2022-02-08 | 贵州汇通华城股份有限公司 | Frequency adjusting method and system for refrigerating water pump of heat recovery unit |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2768495B3 (en) * | 1997-09-15 | 1999-10-22 | Jacques Bernier | AIR RECYCLING DEVICE FOR VENTILATION INSTALLATIONS COMPRISING A RECYCLING FAN AND THREE PRESSURE VALVES |
| CN2632590Y (en) * | 2003-06-26 | 2004-08-11 | 扶承发 | Industrial comprehensive energy utilizing systems |
| CN202101345U (en) * | 2011-05-12 | 2012-01-04 | 北京科印近代印刷技术有限公司 | Chilled-water cold-air refrigerating system for air conditioner in winter |
| CN202109702U (en) * | 2011-06-23 | 2012-01-11 | 河北省电力勘测设计研究院 | Water source heat pump system of thermal power plant |
| CN102269450A (en) * | 2011-08-23 | 2011-12-07 | 上海京瓷电子有限公司 | Summer energy-saving air conditioner |
| CN203501388U (en) * | 2013-06-24 | 2014-03-26 | 倪岳通 | Reheating coil cold energy recovering device of constant-temperature and constant-humidity fresh air unit |
| CN203533978U (en) * | 2013-09-06 | 2014-04-09 | 中国瑞林工程技术有限公司 | Constant temperature and constant humidity air-conditioner heating device with cooling water and heat pump unit combined |
| CN103512156B (en) * | 2013-10-12 | 2018-10-16 | 广州市设计院 | A kind of power-economizing method and new wind load step processing unit of air conditioning system |
| CN104279662B (en) * | 2014-09-22 | 2017-04-19 | 广东技术师范学院 | Cold and heat combined supply water-loop heat pump air conditioning system and realizing method thereof |
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