CN108444007A - The low-temperature receiver intelligence control system of data center's building refrigeration - Google Patents
The low-temperature receiver intelligence control system of data center's building refrigeration Download PDFInfo
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- CN108444007A CN108444007A CN201810228003.9A CN201810228003A CN108444007A CN 108444007 A CN108444007 A CN 108444007A CN 201810228003 A CN201810228003 A CN 201810228003A CN 108444007 A CN108444007 A CN 108444007A
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- Prior art keywords
- cooling
- water
- pump
- valve
- building
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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
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
Abstract
Present invention is disclosed a kind of low-temperature receiver intelligence control systems of data center's building refrigeration, it is characterized by comprising refrigeration logic control hosts, monitoring and control gateway, cooling tower and its pass through cooling pump all the way, cooling-water machine, refrigerating water pump and pipeline access building air-conditioner, and building air-conditioner is accessed by another way cooling pump, refrigerator, refrigerating water pump and pipeline, wherein cooling tower, cooling-water machine, refrigerator, cooling pump and the complete configuration of refrigerating water pump and each equipment is equipped with valve during Inlet and outlet water is two-way and pipeline；The valve is the feedback-type valve that dual input four exports, and whole valves feed back the operating status of each valve associated device by monitoring and controlling gateway signal access refrigeration logic control host.Using the low-temperature receiver intelligence control system of the present invention, the further perfect real-time adjustment switching capability of low-temperature receiver control system；And provide the intelligent possibility of programming in logic control；Have many advantages, such as that low-temperature receiver control stability, safety, energy saving, manipulation is convenient in comprehensive performance.
Description
Technical field
The present invention relates to a kind of intelligence control system more particularly to a kind of low-temperature receiver intelligence being exclusively used in data center's building refrigeration
It can control system.
Background technology
As internet calculates the continuous development with cloud, big data storage and operation popular rise.And as number
According to the hardware device of the construction at center, cabinet is the necessaries that the data such as reasonable storage interchanger, hard disk store and transmit.It is many
Well known, in the operation process of computer room, the intensive operation of the equipment such as all kinds of hard disks and interchanger will produce a large amount of thermal energy, and
In order to ensure that the sustainability operation of computer room, the indoor good temperature controlling circulating system of needs cool down.
The positioning of data center and function determine that the Environmental security index of its computer room will be far above ordinary enterprises communication device
Room, thus in the configuration of the low-temperature receiver of temperature controlling circulating system, it is clear that more to improve and complicated, either hardware configuration or software
Control aspect is required to optimize and reasonably design, and could ensure that stablizing for the computing devices such as data server is transported in computer room conscientiously
Row.
In this, the low-temperature receiver hardware configuration of the temperature controlling circulating system of traditional building refrigeration is required for manpower scene to grasp simply, greatly
Make or is safeguarded, and various types of hardware equipment only has the function of input control without Real-time Feedback state, so as to cause
The cold source system of complication can not be interrelated, and the failure of equipment component, shutdown, which are unable to get, to be timely responded to, investigates, restoring fortune
Row.This brings no small security risk to the stable operation of temperature controlling circulating system, and loss of data will caused by actually damage
Mistake can not be estimated.
Invention content
The purpose of the present invention is directed to a kind of low-temperature receiver intelligence control system of data center's building refrigeration, solves refrigeration system
The program-controlled problem of remote logic of system low-temperature receiver.
The present invention realizes that the technical solution of above-mentioned purpose is, the low-temperature receiver intelligent control system of data center's building refrigeration
System, it is characterised in that including：
Freeze logic control host, comprising be set to the master server of data interconnection in the monitoring room of building, redundant server and
Client, and client passes through weak current box access to LAN；
Monitoring and control gateway, including being divided into the limit pressure water feeding equipment gateway of each floor of building, handpiece Water Chilling Units gateway, object
Monitor gateway, the equal access to LAN of each gateway are simultaneously interconnected with client data；
Cooling tower is set to outside building top chamber, and building air-conditioner is accessed by cooling pump all the way, cooling-water machine, refrigerating water pump and pipeline, and
Building air-conditioner is accessed by another way cooling pump, refrigerator, refrigerating water pump and pipeline, wherein the cooling tower, cooling-water machine, freezing
Machine, cooling pump and refrigerating water pump are respectively configured with the slave equipment that a main equipment and one or more deliver parallel, and each equipment into
It is discharged in two-way and pipeline and is equipped with valve；
The wherein described valve is the feedback-type valve that dual input four exports, and whole valves are by monitoring and controlling gateway signal
Access refrigeration logic control host, feeds back the operating status of each valve associated device.
Further, the cooling tower is equipped with the perseverance for accessing cooling water between itself cavity middle part and external connection refrigerator room water tank
Buckling frequency small pump.
Further, the first automatic water-softening plant is equipped in the total pipeline section of cycle between the cooling tower and cooling pump,
The second automatic water-softening plant is equipped in the total pipeline section of cycle between the refrigerating water pump and building air-conditioner；And the cooling-water machine and cold
Jelly machine is respectively provided with a spiral in the total pipeline section of the two-way cold water of Inlet and outlet water and is vented dirt collection valve.
Further, further include external regional central cooling, and regional central cooling passes through cooling-water machine all the way, cold
Freeze pump and pipeline accesses building air-conditioner, wherein the cooling-water machine and refrigerating water pump are respectively parallel configured with a main equipment and one or more
The slave equipment of delivery, and each equipment is equipped with valve during Inlet and outlet water is two-way and pipeline；The wherein described valve is dual input four
The feedback-type valve of output, and whole valves are by monitoring and controlling gateway signal access refrigeration logic control host, feedback
The operating status of each valve associated device.
Further, third automatic water softening dress is equipped in the total pipeline section of cycle between the refrigerating water pump and building air-conditioner
Set, and the cooling-water machine be discharged to the total pipeline section of cold water be equipped with spiral and be vented dirt collection valve.
Still further, the interface valve for extending refrigerator and refrigerating water pump is installed in the pipeline, and interface valve
Door by monitoring and controlling gateway signal access refrigeration logic control host, feeds back each interface valve extended mode and is associated
The operating status of equipment.
Still further, the pipeline freezing pump water inlet to the total pipeline section of cold water pass through airless injection formula be vented level pressure mend
It is cooling between water installations external connection refrigerator room water tank to supply water.
Still further, the refrigerating water pump is the independently-controlled variable frequency pump.
Still further, the pipeline is respectively equipped with the motorized adjustment of adjustment delay in each incoming end of building air-conditioner
Valve.
Still further, the pipeline freezing pump water inlet to the total pipeline section of cold water be equipped with cold-storage tank, and cold-storage tank
Inlet and outlet water is two-way to be equipped with valve.
Using the low-temperature receiver intelligence control system of the present invention, have substantive distinguishing features outstanding and significant progress：It is logical
Host, the slave for crossing complete configuration various kinds of equipment further improve the real-time adjustment switching capability of low-temperature receiver control；And due to adopting
Make control system be able to intellectualized reconstruction with feedback-type valve, shape effectively and in time can remotely be understood to each equipment
State and implementation manipulate, and provide the intelligent possibility of programming in logic control；According to the demand control frequency conversion of tail end air conditioner equipment
It drives, has many advantages, such as that low-temperature receiver control stability, safety, energy saving, manipulation is convenient in comprehensive performance.
Description of the drawings
Fig. 1 is equipment configuration diagram of the low-temperature receiver intelligence control system of the present invention based on pipeline.
Fig. 2 is the communication architecture schematic diagram of low-temperature receiver intelligence control system of the present invention.
Specific implementation mode
Just attached drawing in conjunction with the embodiments below, the embodiment of the present invention is described in further detail, so that of the invention
Technical solution is more readily understood, grasps, to make relatively sharp define to protection scope of the present invention.
The designer of the present invention investigates and grinds on the experiential basis that long campaigns data center machine room environmental regulatory control works
Traditional machine room building refrigeration aspect, especially many deficiencies wherein in terms of the management and control of low-temperature receiver operating status are studied carefully：It is traditional simple
And the sensor placement of discrete type can only accomplish limited equipment state feedback, especially control each valve that signal is dominated
Open/close states or opening degree can not accurate feedback, this brings the program-controlled intelligent of entire low-temperature receiver control system greatly tired
It disturbs.In view of this, designer's innovation proposes a kind of low-temperature receiver intelligence control system of data center's building refrigeration, and take this to solve
The program-controlled problem of remote logic of refrigeration system low-temperature receiver.
As depicted in figs. 1 and 2, the function of the low-temperature receiver intelligence control system realize rely upon equipment framework as detailed below and
By seeking frame.It is specifically illustrating and visible wherein includes：Freeze logic control host 1, including the data in the monitoring room of building
Master server 11, redundant server 12 and the client 13 of interconnection, and client 13 passes through weak current box access to LAN 2.Monitoring
And control gateway 3, including being divided into the limit pressure water feeding equipment gateway 31 of each floor of building, handpiece Water Chilling Units gateway 32, object prison
Control gateway 33, the equal access to LAN 2 of each gateway and with 13 data interconnection of client.Cooling tower 4 is set to outside building top chamber, is led to
Cross cooling pump 5, cooling-water machine 6, refrigerating water pump 8 and pipeline 9 all the way and access building air-conditioner, and by another way cooling pump, refrigerator 7,
Refrigerating water pump and pipeline access building air-conditioner, and wherein cooling tower, cooling-water machine, refrigerator, cooling pump and refrigerating water pump is respectively configured with one
The slave equipment that main equipment and one or more deliver parallel, and each equipment is equipped with valve during Inlet and outlet water is two-way and pipeline；Its
Middle valve is the feedback-type valve that dual input four exports, and whole valves are patrolled by monitoring and controlling gateway signal access refrigeration
Control host 1 is collected, the operating status of each valve associated device is fed back.
In addition, in diagram embodiment, above-mentioned cooling tower 4, which is equipped with, to be accessed in the middle part of itself cavity and between external connection refrigerator room water tank
The constant pressure frequency conversion small pump 101 of cooling water.The first automatic water is equipped in the total pipeline section of cycle between above-mentioned cooling tower and cooling pump
Softening plant 102 is equipped with the second automatic water-softening plant 103 in the total pipeline section of cycle between refrigerating water pump and building air-conditioner；And it is cold
Water dispenser and refrigerator are respectively provided with a spiral exhaust dirt collection valve 105 in the total pipeline section of the two-way cold water of Inlet and outlet water.
Further, further include external regional central cooling as shown in the figure from the point of view of for source, and regional concentrate
Cooling accesses building air-conditioner by cooling-water machine all the way, refrigerating water pump and pipeline, and wherein cooling-water machine and refrigerating water pump is respectively configured with a master
The slave equipment that equipment and one or more deliver parallel, and each equipment is equipped with valve during Inlet and outlet water is two-way and pipeline；Wherein
The valve is the feedback-type valve that dual input four exports, and whole valves are by monitoring and controlling gateway signal access refrigeration
Logic control host feeds back the operating status of each valve associated device.
Also, the automatic water-softening plant 104 of third is equipped in the total pipeline section of cycle between the refrigerating water pump and building air-conditioner, and
The cooling-water machine be discharged to the total pipeline section of cold water be equipped with spiral and be vented dirt collection valve 105.It should be noted that above-mentioned refrigerating water pump
It is the independently-controlled variable frequency pump, further increases the submissive degree of control of switching adjustment low-temperature receiver moisturizing.
In addition to above-mentioned hardware preferred configures, the interface valve for extending refrigerator and refrigerating water pump is installed in the pipeline 9
106, and interface valve feeds back each interface valve extension by monitoring and controlling gateway signal access refrigeration logic control host
The operating status of state and associated device.
The pipeline 9 freezing pump water inlet to the total pipeline section of cold water by airless injection formula be vented constant pressure water compensation apparatus 107 outside
Cooling is supplied water between joining refrigerator room water tank.
The pipeline 9 is respectively equipped with the electric control valve 108 of adjustment delay in each incoming end of building air-conditioner.
Washability, the pipeline 9 freezing pump water inlet to cold water total pipeline section be equipped with cold-storage tank 109, and cold-storage tank
Inlet and outlet water is two-way to be equipped with valve.
The low-temperature receiver intelligence control system in summary, is divided into natural air cooling, refrigerator from low-temperature receiver acquiring way
Compression refrigeration and regional central cooling various ways.And it is parallel to constitute two-way for different low-temperature receiver acquisition modes
Cooling equipment.It is different with the intensity of refrigeration demand according to the size of energy consumption, two-way can be selected respectively or one optimizes section
It can control.
And except the low-temperature receiver acquisition modes of regional central cooling, another way cooling equipment is then natural air cooling and refrigerator
Compression is freezed and pipe operational mode.Thus providing the low-temperature receiver intelligence control system has cold pattern and natural cooling pattern
Two kinds of methods of operation controllably switched.It is furthermore noted that：1, in cold mode operation, check that pump, tower, cold must in real time
Must at least one in normal operating condition, if after certain failure or other means is shut down, stand-by equipment should be able to be started.
It, absolutely cannot certain equipment is wholly off when off-load.2, in automated system operation, equipment, valve etc. can switch to manual control
System should be able to return to logic control, automatically keep the state of logical requirements back to after automatic.3, in automated system operation, such as
It was found that certain equipment or valve fail logically to control, there should be alarm.4, it is all answered to the content of delay involved in system
There is adjustable control, can enter to adjust with the identity of administrator.
Below by way of the control logic of two kinds of operational modes of system, the excellent of system intelligent control is understood with being embodied
Point.
It is cold pattern first, can not be met in time by common natural cooling under summer or megathermal climate environment
The case where low-temperature receiver cooling needs.
One, cold starts automatically：
1, it closes plate and changes valve, open supervisor's valve, the cooling-water machine for selecting run time short, corresponding four valves are opened, closed
It closes the correspondence valve of another refrigerator, selects that run time is short, cooling tower in remote status, open corresponding valve, close
Close the valve of another cooling tower；
2, condition：Whole valve open/closes in place after, open that run time is short, cooling pump, a refrigerating water pump in remote status,
Such as feedback states not running after 3S, the pump of an other identical function will be switched to（Open command is first sent out, feedback states have been transported
Row, after send out the former pump of closing）；
3, condition：Cooling pump feedback has been run, and the cooling tower that the first step is chosen is opened after the 30S that is delayed；As feedback states are not after 3S
Operation, will be switched to an other tower（First send out Open valve, open tower, feedback states have been run, after send out the former tower of closing, close
Close former tower valve）；
4, condition：Refrigerating water pump, cooling pump feedback have been run, and the refrigerator that the first step is chosen is opened after the 30S that is delayed, as anti-after 120S
Feedback state not running will be switched to an other refrigerator（Open valve first to be sent out, refrigerator is opened, feedback states have been run, after
The former refrigerator of closing is sent out, corresponding valve is closed）.
Two, cold is automatically closed：
1, refrigerator is closed；
2, condition：Refrigerator feedback has stopped, and cooling pump, refrigerating water pump are closed after the 30S that is delayed；
3, condition：Cooling pump feedback has stopped, and closes cooling tower after the 30S that is delayed, closes the valve of cooling tower.
Wherein refrigerator load logical order be：
1, judge that the percentage of current of cooling-water machine reaches load setting value, open cooling tower valve, unlatching refrigerator corresponds to valve；
2, condition：Cold side valve opens cooling pump after reaching position；
3, condition：Cooling pump feedback opens cooling tower after having run；
4, condition：Cooling tower feedback has run, has freezed after side valve door reaches position and open refrigerator.
The logical order of refrigerator off-load is：
1, judge that the percentage of current of cooling-water machine reaches off-load setting value, the refrigerator of shut-in time length；
2, condition：One refrigerator feedback has stopped, and cooling pump is closed after the 30S that is delayed；
3, condition：Cooling pump feedback has stopped, and closes corresponding refrigerator valve.
Furthermore it is natural cooling pattern, assists central cooling or refrigerator to meet low-temperature receiver under severe winter or microthermal climate environment
Cooling needs meet the requirement of power-saving industrial control.
One, natural cooling mode automatic starting：
1, opening board changes valve, closes cooling-water machine cold side valve, opens that run time is short, is corresponded in the cooling tower of remote status
Valve；
2, condition：Valve open/close in place after, open that run time is short, cooling pump, a refrigerating water pump in remote status；
3, condition：Cooling pump feedback has been run, and the cooling tower that the first step is chosen is opened after the 30S that is delayed.
Two, natural cooling pattern is automatically stopped：
1, cooling pump, refrigerating water pump are closed；
2, condition：Cooling pump feedback has stopped, and cooling tower is closed after the 30S that is delayed；
3, condition：Cooling tower feedback has stopped, and closes cooling tower and corresponds to valve.
Wherein cooling pump, the logical order of cooling tower load are：Temperature condition reaches load setting value, raising frequency rate, frequency
Reach load setting value（Open tower）, open the valve of second tower, feedback of status opens tower afterwards in place, after tower whole power frequency, prolong
When 60S load cooling pump.
Cooling pump, the logical order of tower off-load are：After temperature condition reaches off-load setting value, a long operational time is first closed
Cooling pump, after temperature condition reaches off-load setting value, drop cooling tower frequency, cooling tower frequency drop to close tower setting value after, close
Yi Taita is closed, corresponding valve is closed.
Refrigerating water pump load logical order be：Pressure differential reaches load setting value, raising frequency rate, and frequency reaches load setting
Value（Open pump）, open second pump.
The logical order of refrigerating water pump off-load is：After pressure differential reaches, first frequency reducing rate, frequency reaches off-load setting value（It closes
Pump）, close the pump of a long operational time.
To sum up the detailed description about low-temperature receiver intelligence control system framework of the present invention and control logic is as it can be seen that the application present invention
Low-temperature receiver intelligence control system, have substantive distinguishing features outstanding and significant progress：Pass through complete configuration various kinds of equipment
Host, slave further improve low-temperature receiver control real-time adjustment switching capability；And make as a result of feedback-type valve
Control system is able to intellectualized reconstruction, effectively and in time remotely can understand state to each equipment and implement to manipulate, provide
The intelligent possibility of programming in logic control；According to the demand control frequency conversion drive of tail end air conditioner equipment, have in comprehensive performance
Have the advantages that low-temperature receiver control stability, safety, energy saving, manipulation is convenient.
Claims (10)
1. the low-temperature receiver intelligence control system of data center's building refrigeration, it is characterised in that including：
Freeze logic control host, comprising be set to the master server of data interconnection in the monitoring room of building, redundant server and
Client, and client passes through weak current box access to LAN；
Monitoring and control gateway, including being divided into the limit pressure water feeding equipment gateway of each floor of building, handpiece Water Chilling Units gateway, object
Monitor gateway, the equal access to LAN of each gateway are simultaneously interconnected with client data；
Cooling tower is set to outside building top chamber, and building air-conditioner is accessed by cooling pump all the way, cooling-water machine, refrigerating water pump and pipeline, and
Building air-conditioner is accessed by another way cooling pump, refrigerator, refrigerating water pump and pipeline, wherein the cooling tower, cooling-water machine, freezing
Machine, cooling pump and refrigerating water pump are respectively configured with the slave equipment that a main equipment and one or more deliver parallel, and each equipment into
It is discharged in two-way and pipeline and is equipped with valve；
The wherein described valve is the feedback-type valve that dual input four exports, and whole valves are by monitoring and controlling gateway signal
Access refrigeration logic control host, feeds back the operating status of each valve associated device.
2. the low-temperature receiver intelligence control system of data center's building refrigeration according to claim 1, it is characterised in that：The cooling
Tower is equipped with the constant pressure frequency conversion small pump for accessing cooling water between itself cavity middle part and external connection refrigerator room water tank.
3. the low-temperature receiver intelligence control system of data center's building refrigeration according to claim 1, it is characterised in that：The cooling
The first automatic water-softening plant is equipped in the total pipeline section of cycle between tower and cooling pump, between the refrigerating water pump and building air-conditioner
It recycles and is equipped with the second automatic water-softening plant in total pipeline section；And the cooling-water machine and the refrigerator cold water manifold two-way in Inlet and outlet water
Section is respectively provided with a spiral exhaust dirt collection valve.
4. the low-temperature receiver intelligence control system of data center's building refrigeration according to claim 1, it is characterised in that further include outer
The regional central cooling connect, and regional central cooling accesses building air-conditioner by cooling-water machine all the way, refrigerating water pump and pipeline,
Described in cooling-water machine and refrigerating water pump be respectively configured with the slave equipment that a main equipment and one or more deliver parallel, and each equipment
It is equipped with valve during Inlet and outlet water is two-way and pipeline；The feedback-type valve that the wherein described valve exports for dual input four, and whole valves
Door by monitoring and controlling gateway signal access refrigeration logic control host, feeds back the operation shape of each valve associated device
State.
5. the low-temperature receiver intelligence control system of data center's building refrigeration according to claim 4, it is characterised in that：The freezing
Pump building air-conditioner between the total pipeline section of cycle in be equipped with the automatic water-softening plant of third, and the cooling-water machine be discharged to cold water
Total pipeline section is equipped with a spiral and is vented dirt collection valve.
6. according to the low-temperature receiver intelligence control system of the data center's building refrigeration of claim 1 or 4, it is characterised in that：It is described
The interface valve for extending refrigerator and refrigerating water pump is installed in pipeline, and interface valve is by monitoring and controlling gateway letter
Number access refrigeration logic control host, feed back the operating status of each interface valve extended mode and associated device.
7. according to the low-temperature receiver intelligence control system of the data center's building refrigeration of claim 1 or 4, it is characterised in that：It is described
Pipeline freezing pump water inlet to the total pipeline section of cold water pass through airless injection formula be vented constant pressure water compensation apparatus external connection refrigerator room water tank
Between cooling supply water.
8. according to the low-temperature receiver intelligence control system of the data center's building refrigeration of claim 1 or 4, it is characterised in that：It is described
Refrigerating water pump is the independently-controlled variable frequency pump.
9. according to the low-temperature receiver intelligence control system of the data center's building refrigeration of claim 1 or 4, it is characterised in that：It is described
Pipeline is respectively equipped with the electric control valve of adjustment delay in each incoming end of building air-conditioner.
10. according to the low-temperature receiver intelligence control system of the data center's building refrigeration of claim 1 or 4, it is characterised in that：It is described
Pipeline freezing pump water inlet to the total pipeline section of cold water be equipped with cold-storage tank, and the Inlet and outlet water of cold-storage tank two-way is equipped with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228003.9A CN108444007A (en) | 2018-03-20 | 2018-03-20 | The low-temperature receiver intelligence control system of data center's building refrigeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228003.9A CN108444007A (en) | 2018-03-20 | 2018-03-20 | The low-temperature receiver intelligence control system of data center's building refrigeration |
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| CN108444007A true CN108444007A (en) | 2018-08-24 |
Family
ID=63195845
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| CN201810228003.9A Pending CN108444007A (en) | 2018-03-20 | 2018-03-20 | The low-temperature receiver intelligence control system of data center's building refrigeration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109307351A (en) * | 2018-09-17 | 2019-02-05 | 北京华清元泰新能源技术开发有限公司 | A kind of efficient synthesis energy saving control system for heat pump |
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