CN106679210A - Novel variable-pressure-ratio steam compression/heat pipe integrated machine room air conditioner system and control method thereof - Google Patents
Novel variable-pressure-ratio steam compression/heat pipe integrated machine room air conditioner system and control method thereof Download PDFInfo
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- CN106679210A CN106679210A CN201611061024.3A CN201611061024A CN106679210A CN 106679210 A CN106679210 A CN 106679210A CN 201611061024 A CN201611061024 A CN 201611061024A CN 106679210 A CN106679210 A CN 106679210A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- 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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/08—Exceeding a certain temperature value in a refrigeration component or cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2116—Temperatures of a condenser
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2117—Temperatures of an evaporator
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a novel variable-pressure-ratio steam compression/heat pipe integrated machine room air conditioner system comprising a compressor, a condenser, a throttling device, an evaporator, an outdoor draught fan, an indoor draught fan and a controller. The compressor, the condenser, the throttling device and the evaporator are sequentially connected together in series through a pipeline. The outdoor draught fan is arranged on one side of the condenser. The indoor draught fan is arranged on one side of the evaporator. The controller is connected with the compressor, the condenser, the throttling device, the outdoor draught fan, the indoor draught fan, the evaporator and the controller through data transmission lines correspondingly. The invention further discloses a control method of the novel variable-pressure-ratio steam compression/heat pipe integrated machine room air conditioner system. The system is a novel variable-pressure-ratio integrated energy conservation system with a steam compression refrigeration function and a hot pipe cooling function, appropriate cooling temperature and refrigerating capacity can be provided, and efficient and stable operation of the integrated machine room air conditioner system is achieved under the condition that the full-year outdoor temperature substantially changes.
Description
Technical field
The present invention relates to Refrigeration ＆ Air-Conditioning technical field.More particularly, to a kind of novel changable pressure ratio it is steam compressed/heat
Pipe Integral computer-room air-conditioning system and its control method.
Background technology
With the development and application of information technology, the quantity of data center increases sharply.In the world, data center
The rich and influential family of energy resource consumption is had become, data center's total energy consumption has accounted for the 1.3% of global total electricity consumption.Heat pipe air conditioner system
With can not introduce using outdoor natural cooling source and the advantage of outdoor pollutant and receive publicity, but due to heat pipe it is naturally cold
But cannot run in outdoor temperature higher season, therefore research and develop simultaneously with vapor compression refrigeration and heat pipe refrigerating function
Integral computer-room air-conditioning system become inexorable trend.Existing steam compressed/heat pipe integrated air-conditioning system is substantially former by it
Reason can be divided into that steam compressed/heat pipe common type, active low-temperature receiver/natural cooling source be parallel, active low-temperature receiver/natural cooling source tandem
With the steam compressed/loop heat pipe integrated air-conditioning system based on three media heat exchangers.
Steam compressed/heat pipe common type air-conditioning system is on the one hand due under heat pipe pattern and vapor compression refrigeration pattern, making
Flowing of the cryogen in evaporimeter with condenser is different with the regularity of distribution of heat transfer mechanism, cold-producing medium, the optimization of heat exchanger and system
The charging amount of cryogen can only in one mode based on be designed so that the performance under another pattern decreases；It is another
Aspect, system needs magnetic valve to carry out pattern switching, and the frequent switching of magnetic valve brings larger reliability hidden danger, seriously
Constrain the practical application of system.
Active low-temperature receiver/natural cooling source is parallel and serial air conditioner system is under different operating conditions, and cold-producing medium is two
Different distribution of refrigerant are there are in the condenser of individual serial or parallel connection, and electromagnetism Vavle switching also can band in parallel type system
Carry out the hidden danger of reliability.
Accordingly, it is desirable to provide a kind of more empty than steam compressed/heat pipe Integral computer-room based on free-piston compressor pressure-variable
Adjusting system, to solve above-mentioned hidden danger.
The content of the invention
It is an object of the present invention to provide a kind of novel changable pressure ratio it is steam compressed/heat pipe Integral computer-room air-conditioning system
System.
Further object is that provide a kind of novel changable pressure ratio it is steam compressed/heat pipe Integral computer-room air-conditioning
The control method of system.
To reach above-mentioned purpose, the present invention adopts following technical proposals：
A kind of novel changable pressure ratio is steam compressed/heat pipe Integral computer-room air-conditioning system, including compressor, condenser, section
Stream device, evaporimeter, outdoor fan, indoor fan and controller；
Compressor：Both the condensation temperature signal that can have been received according to controller, (top dead centre stops to lower to change compressor stroke
The distance of point) adjusting compression ratio, adapt to condensation temperature, it is to avoid overcompression so that condensing pressure can decline with outdoor temperature
It is gradually reduced；Also dependent on the evaporating temperature signal that controller is received, change the operating frequency of compressor, control evaporating temperature
And refrigerant flow so that it can provide suitable chilling temperature and refrigerating capacity, particularly in outdoor temperature less than indoor one
After definite value, the compressor can provide only refrigerant circulation stream with very little compression ratio operation (similar to air pump mode operation)
(gravity that especially the refrigerant air-liquid discrepancy in elevation is provided can be used as cold-producing medium flow impetus for the resistance overcome required for dynamic
When, compressor can be out of service), system is realized in annual room with loop heat pipe mode operation, natural cooling source outside efficient utilization room
Outer temperature be widely varied in the case of Integral computer-room air-conditioning system efficient stable operation；
Condenser and evaporimeter are that vapor compression system and heat pipe cooling system are shared；In vapor compression refrigeration system operation
When, condenser and evaporimeter are the condenser and evaporimeter of vapor compression refrigeration system, when heat pipe cooling system run, condense
Device and evaporimeter are again the evaporation ends and condensation end of the heat pipe cooling system；
Throttling arrangement is the throttling arrangement of variable restrictor area, is adjusted to control by changing the orifice size of throttling arrangement
The suction superheat of compressor, keeps stablizing for compressor, and meets the demand of steam compressed pattern and the conversion of heat pipe pattern；
Outdoor fan：The air quantity of air cooling heat exchanger can be adjusted, and then the refrigerating capacity to unit is adjusted, with essence
Really control indoor temperature；
Indoor fan：Strengthen the heat transmission with evaporimeter；
Controller can be received and carry out the temperature signal feedback of flash-pot and condenser, and be compressed by controlling brancher control
Machine compression ratio and exploitation speed, rotation speed of fan or number (pump rotary speed), throttling arrangement aperture.
The compressor, condenser, throttling arrangement, evaporimeter pass sequentially through placed in series together；The outdoor fan
It is arranged on condenser side；The indoor fan is arranged on evaporimeter side；The controller by data line respectively with
Compressor, condenser, throttling arrangement, evaporimeter, outdoor fan are connected with indoor fan.
Said system is air-cooled pressure-variable than steam compressed/heat pipe Integral computer-room air-conditioning system, and the system can also
Be water-cooled pressure-variable than steam compressed/heat pipe Integral computer-room air-conditioning system, will outdoor fan replace with chilled(cooling) water return (CWR) water
Pump, the water yield of water cooling heat exchanger is adjusted by the rotating speed of chilled(cooling) water return (CWR) water pump, and then the refrigerating capacity to unit is adjusted,
More accurately control the temperature of interior.
Further, the compressor is free piston compressor；
Further, the throttling arrangement is the throttling arrangement of variable restrictor area, preferably heating power expansion valve or electronics
Expansion valve；
Further, the condenser and evaporimeter be micro-channel heat exchanger, fin-tube heat exchanger, double pipe heat exchanger or
Plate type heat exchanger.
Further, the outdoor fan is speed-changing draught fan or several Fans, by the platform for adjusting rotation speed of fan or unlatching
Count to adjust the air quantity of air cooling heat exchanger.
A kind of novel changable pressure ratio is steam compressed/control method of heat pipe Integral computer-room air-conditioning system, including following three
The pattern of kind：
1) vapor compression refrigeration pattern：When outdoor temperature it is higher, i.e., it is first when outdoor temperature is higher than heat pipe circuit condensation temperature
First start compressor, the cold-producing medium in vapor compression refrigeration loop is condensed within the condenser Jing after compressor compression, condenses heat release
Throttling arrangement being entered afterwards, evaporimeter being entered back into after reducing pressure by regulating flow, compressor is returned to after evaporation endothermic；
Wherein, controller both can be processed the condensation temperature feedback signal of condenser feedback, then change compression
Machine stroke adjusts condensation temperature adjusting compression ratio, it is to avoid overcompression so that condensation temperature can decline with outdoor temperature
It is gradually reduced；Also the evaporating temperature feedback signal of evaporimeter feedback can be processed, then changes the operating frequency of compressor,
Adapt to evaporating temperature and adjusting refrigerant flow rate, enabling the suitable cryogenic temperature of offer and refrigerating capacity；
2) joint refrigeration pattern：When outdoor temperature is relatively low, i.e., outdoor temperature is less than heat pipe circuit condensation temperature, but outdoor
When temperature is not enough to keep the predetermined temperature of whole data center with the difference of heat pipe condensation temperature, controller sends letter in good time
Number, compressor is automatically turned on, certain power is provided to heat pipe cooling system, and the aperture of throttling arrangement is reached into maximum；This
When cold-producing medium compressor provide power under enter condenser, condense heat release after flow through in the state of minimum drag throttling dress
Put, directly absorb heat to evaporator evaporation, finally return compressor；
Wherein, the evaporating temperature feedback signal that controller is transmitted to evaporimeter is processed, and compressor is then changed again
Operating frequency, adapts to evaporating temperature and adjusting refrigerant flow rate so that it can provide suitable chilling temperature and refrigerating capacity；
3) heat pipe pattern：When outdoor temperature is sufficiently low, i.e., outdoor temperature be less than heat pipe condensation temperature, and outdoor temperature with
The cooling effect that the difference of the condensation temperature of heat pipe circuit is reached can meet the holding of the predetermined temperature of whole machine room, controller
Signal, close compressor are sent in good time, but while open compressor inlet and gas outlet, the aperture of throttling arrangement is reached most
Greatly；Now cold-producing medium is condensed within the condenser, enters evaporimeter after condensation heat release under gravity, is returned again after evaporation endothermic
To condenser；
Whole system is run in the presence of the cold-producing medium power that suffered gravity and compressor are provided in conduit.
Further, the system can be air-cooled pressure-variable than steam compressed/heat pipe Integral computer-room air-conditioning system, three
Under the pattern of kind, the windbell of condenser is adjusted by adjusting outdoor fan, the refrigerating capacity of unit is adjusted, be accurately controlled
Indoor temperature.
Further, the system can be water-cooled pressure-variable than steam compressed/heat pipe Integral computer-room air-conditioning system, three
Under the pattern of kind, the water yield of condenser is adjusted by the rotating speed of chilled(cooling) water return (CWR) water pump, the refrigerating capacity of unit is adjusted, essence
The indoor temperature of true control.
Beneficial effects of the present invention are as follows：
The present invention be a kind of novel changable pressure ratio it is steam compressed/heat pipe integral type data center air-conditioning system, be have steam
The novel changable pressure ratio integral energy-saving system of air pressure contracting refrigerating function and heat pipe refrigerating function, using the teaching of the invention it is possible to provide suitable cooling temperature
Degree and refrigerating capacity, realize the efficient stable fortune of the Integral computer-room air-conditioning system in the case where annual outdoor temperature is widely varied
OK.Compared to traditional steam compressed/heat pipe integrated air conditioner, can realize that it does not need the frequent unlatching of magnetic valve to switch
Pattern, can also reduce the harm of the heat exchanger performance decline that distribution of refrigerant change causes.
Description of the drawings
The specific embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 illustrates air-cooled pressure-variable than steam compressed/heat pipe Integral computer-room air-conditioning system；
Wherein, 1, compressor；2nd, condenser；3rd, throttling arrangement；4th, evaporimeter；5th, outdoor fan；6th, indoor fan；7th, control
Device processed；8th, condenser thermometric feedback branch；9th, evaporimeter thermometric feedback branch；10th, outdoor fan controlling brancher；11st, throttling dress
Put controlling brancher；12nd, compressor control branch road；13rd, indoor fan controlling brancher.
Fig. 2 illustrates water-cooled pressure-variable than steam compressed/heat pipe Integral computer-room air-conditioning system；
Wherein, 1, compressor；2nd, condenser；3rd, throttling arrangement；4th, evaporimeter；5 ', chilled(cooling) water return (CWR) water pump；6th, indoor wind
Machine；7th, controller；8th, condenser thermometric feedback branch；9th, evaporimeter thermometric feedback branch；10th, outdoor fan controlling brancher；11、
The road of throttling arrangement control；12nd, compressor control branch road；13rd, indoor fan controlling brancher.
Fig. 3 illustrates that free piston compressor pressure-variable compares schematic diagram；
Wherein, 3-1, free-piston stroke top dead center；The big bottom of stroke of 3-2, free-piston；The little row of 3-3, free-piston
Journey lower dead center；
Fig. 4 illustrates that free piston compressor avoids or reduce overcompression pressure-enthalpy chart；
Wherein, A, common compressor overcompression pressure-enthalpy chart；B, pressure-variable are than free piston compressor ideal pressure-enthalpy chart.
Specific embodiment
In order to be illustrated more clearly that the present invention, the present invention is done further with reference to preferred embodiments and drawings
It is bright.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that below institute is concrete
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
Embodiment 1：Air-cooled pressure-variable is than steam compressed/heat pipe Integral computer-room air-conditioning system
As shown in figure 1, air-cooled pressure-variable includes compressor 1, condensation than steam compressed/heat pipe Integral computer-room air-conditioning system
Device 2, throttling arrangement 3, evaporimeter 4, outdoor fan 5, indoor fan 6, controller 7.The outlet of the evaporimeter 4 and compressor 1
Air inlet a by pipeline be connected；The gas outlet b of the compressor 1 is connected with the import of condenser 2 by pipeline；The condensation
Device 2 is exported with throttling arrangement 3 by conduit entrance, and the outlet of the throttling arrangement 3 passes through pipe with the import of the evaporimeter 4
Road is connected；The compressor 1 and throttling arrangement 4 also respectively by compressor control branch road 12 and throttling arrangement controlling brancher 11 with
Controller 7 is connected, and the condenser 2 and evaporimeter 4 are also anti-by condenser thermometric feedback branch 8 and evaporimeter thermometric respectively
Feedback branch road 9 is connected with controller 7；The outdoor fan 5 arranges condenser 2 side, by outdoor fan controlling brancher 10 with
Controller 7 is connected；The indoor fan 6 arranges the side of evaporimeter 4, by indoor fan controlling brancher 13 and the phase of controller 7
Connection；
Wherein, the condenser 2 is air cooling heat exchanger, and outdoor fan 5 can be led to using speed-changing draught fan or several Fans
Overregulate the number of units of rotation speed of fan or unlatching to adjust the air quantity of air cooling heat exchanger.
Embodiment 2：Water-cooled pressure-variable is than steam compressed/heat pipe Integral computer-room air-conditioning system
As shown in Fig. 2 water-cooled pressure-variable is constituted and connected than the part of steam compressed/heat pipe Integral computer-room air-conditioning system
Relation is more identical than steam compressed/heat pipe Integral computer-room air-conditioning system with air-cooled pressure-variable, and simply condenser 2 is exchanged heat using water-cooled
Device, outdoor fan 5 is substituted by the chilled(cooling) water return (CWR) water pump 5 ' in Fig. 2 in Fig. 1, by the rotating speed of chilled(cooling) water return (CWR) water pump 5 ' come
Adjust the water yield of water cooling heat exchanger.
A kind of novel changable pressure ratio of embodiment 3 is steam compressed/control method of heat pipe Integral computer-room air-conditioning system
Novel changable pressure ratio is steam compressed/control method of heat pipe Integral computer-room air-conditioning system, including Three models：
1) vapor compression refrigeration pattern
When outdoor temperature is higher, i.e., when outdoor temperature is higher than heat pipe circuit condensation temperature, as shown in the figures 1 and 2, start first
Free piston compressor 1, the cold-producing medium in vapor compression refrigeration loop is being condensed Jing after the compression of free piston compressor 1
Condense in device 2, after condensation heat release variable restrictor area throttling arrangement 3 is entered, evaporimeter 4 is entered back into after reducing pressure by regulating flow, steam
Send out and be returned to free piston compressor 1 after heat absorption；
Wherein, controller 7 both can be carried out to the condensation temperature feedback signal transmitted by condenser thermometric feedback branch 8
Process, then again by 12 compressor control branch roads change compressor stroke (distance of top dead centre 3-1 to lower dead center 3-2,3-3)
To adjust compression ratio (as shown in Figure 3), and then adjust condensing pressure (temperature), it is to avoid overcompression so that condensing pressure can be with
Outdoor temperature decline is gradually reduced (as shown in Figure 4)；Also can be anti-to the evaporating temperature transmitted by evaporimeter thermometric feedback branch 9
Feedback signal is processed, and then adapts to evaporating pressure by the operating frequency of the change compressor 1 of compressor control branch road 12 again
(temperature) and adjusting refrigerant flow rate, enabling the suitable cryogenic temperature of offer and refrigerating capacity；
2) joint refrigeration pattern
When outdoor temperature is relatively low, i.e., outdoor temperature is less than heat pipe circuit condensation temperature, but outdoor temperature is condensed with heat pipe
When the difference of temperature is not enough to keep the predetermined temperature of whole data center, accordingly operating mode sends signal to controller 7 in good time, passes through
Compressor control branch road 12 automatically turns on free piston compressor 1, and to heat pipe cooling system certain power is provided, and passes through
The aperture of throttling arrangement 3 is reached maximum by throttling arrangement controlling brancher 11.Now cold-producing medium is provided in free piston compressor 1
Condenser 2 is entered under power, the throttling arrangement 3 flowed through after heat release in the state of minimum drag is condensed, is directly evaporated to evaporimeter 4
Heat absorption, finally returns free-piston compressor 1.Wherein 7 pairs of evaporations transmitted by evaporimeter thermometric feedback branch 9 of controller
Temperature feedback signal is processed, and then adapts to evaporation by the operating frequency of the change compressor of compressor control branch road 12 again
Pressure (temperature) and adjusting refrigerant flow rate so that it can provide suitable chilling temperature and refrigerating capacity；
3) heat pipe pattern
When outdoor temperature is sufficiently low, i.e., outdoor temperature is less than heat pipe condensation temperature, and outdoor temperature and heat pipe circuit
The cooling effect that the difference of condensation temperature is reached can meet the holding of the predetermined temperature of whole machine room, as shown in the figures 1 and 2, control
Device processed 7 sends signal in good time according to this operating mode, by the closing free piston compressor 1 of compressor control branch road 12, but while
Open compressor inlet a and gas outlet b, maximum is reached by throttling arrangement controlling brancher 11 by the aperture of throttling arrangement 3.This
When cold-producing medium condense in condenser 2, condensation heat release after under gravity enter evaporimeter 4, return after evaporation endothermic cold
Condenser 2；
Whole system is run in the presence of the cold-producing medium power that suffered gravity and compressor are provided in conduit.
Wherein, when the system be air-cooled pressure-variable than steam compressed/heat pipe Integral computer-room air-conditioning system, in various fortune
Under row mode, by the air quantity for adjusting the rotating speed or unlatching number of units of outdoor fan 5 to adjust condenser 2, and then to unit
Refrigerating capacity is adjusted, and more accurately controls indoor temperature.
When the system be water-cooled pressure-variable than steam compressed/heat pipe Integral computer-room air-conditioning system, in various operation moulds
Under formula, the water yield of condenser 2 is adjusted by the rotating speed of chilled(cooling) water return (CWR) water pump 5 ', and then the refrigerating capacity to unit is adjusted
Section, more accurately controls the temperature of interior.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not right
The restriction of embodiments of the present invention, for those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms, all of embodiment cannot be exhaustive here, it is every to belong to this
Obvious change that bright technical scheme is extended out changes row still in protection scope of the present invention.
Claims (9)
1. a kind of novel changable pressure ratio it is steam compressed/heat pipe Integral computer-room air-conditioning system, it is characterised in that include：Compressor
（1）, condenser（2）, throttling arrangement（3）, evaporimeter（4）, outdoor fan（5）, indoor fan（6）And controller（7）；The pressure
Contracting machine（1）, condenser（2）, throttling arrangement（3）, evaporimeter（4）Pass sequentially through placed in series together；The outdoor fan sets
Put in condenser（2）Side；The indoor fan is arranged on evaporimeter（4）Side；The controller（7）By data line
Respectively with compressor（1）, condenser（2）, throttling arrangement（3）, evaporimeter（4）, outdoor fan（5）, indoor fan（6）It is connected
Connect.
2. system according to claim 1, it is characterised in that：The outdoor fan（5）Could alternatively be chilled(cooling) water return (CWR)
Water pump（5’）.
3. system according to claim 1 and 2, it is characterised in that：The compressor（1）For free piston compressor.
4. system according to claim 1 and 2, it is characterised in that：The throttling arrangement（3）For the section of variable restrictor area
Stream device, preferably heating power expansion valve or electric expansion valve.
5. system according to claim 1 and 2, it is characterised in that：The condenser（2）And evaporimeter（4）For microchannel
Heat exchanger, fin-tube heat exchanger, double pipe heat exchanger or plate type heat exchanger.
6. system according to claim 1, it is characterised in that：The outdoor fan（5）For speed-changing draught fan or several Fans
Combine.
7. a kind of control method of the system as described in claim 1-6 is arbitrary, it is characterised in that including following Three models：
1）Vapor compression refrigeration pattern：When outdoor temperature is higher, i.e., when outdoor temperature is higher than heat pipe circuit condensation temperature, open first
Dynamic compressor（1）, the cold-producing medium Jing compressors in vapor compression refrigeration loop（1）After compression, in condenser（2）Middle condensation, it is cold
Throttling arrangement is entered after solidifying heat release（3）, evaporimeter is entered back into after reducing pressure by regulating flow（4）, compressor is returned to after evaporation endothermic
（1）；
Wherein, controller（7）Both can be to condenser（2）The condensation temperature feedback signal of feedback is processed, and then changes pressure
Contracting machine（1）Stroke adjusts condensation temperature adjusting compression ratio, it is to avoid overcompression so that condensation temperature can be with outdoor temp
Degree decline is gradually reduced；Also can be to evaporimeter（4）The evaporating temperature feedback signal of feedback is processed, and then changes compressor
（1）Operating frequency, adapt to evaporating temperature and adjusting refrigerant flow rate, enabling provide suitable cryogenic temperature and refrigeration
Amount；
2）Joint refrigeration pattern：When outdoor temperature is relatively low, i.e., outdoor temperature is less than heat pipe circuit condensation temperature, but outdoor temperature
When being not enough to keep the predetermined temperature of whole data center with the difference of heat pipe condensation temperature, controller（7）Signal is sent in good time,
Automatically turn on compressor（1）, provide certain power to heat pipe cooling system, and by throttling arrangement（3）Aperture reach maximum；
Now cold-producing medium is in compressor（1）There is provided and enter under power condenser（2）, flow through in the state of minimum drag after condensation heat release
Throttling arrangement（3）, directly to evaporimeter（4）Evaporation endothermic, finally returns compressor（1）；
Wherein, controller（7）To evaporimeter（4）The evaporating temperature feedback signal for transmitting is processed, and compressor is then changed again
（1）Operating frequency, adapt to evaporating temperature and adjusting refrigerant flow rate so that it can provide suitable chilling temperature and refrigeration
Amount；
3）Heat pipe pattern：When outdoor temperature is sufficiently low, i.e., outdoor temperature is less than heat pipe condensation temperature, and outdoor temperature and heat pipe
The cooling effect that the difference of the condensation temperature in loop is reached can meet the holding of the predetermined temperature of whole machine room, controller（7）
Signal, close compressor are sent in good time（1）, but while open compressor inlet and gas outlet, by throttling arrangement（3）Aperture
Reach maximum；Now cold-producing medium is in condenser（2）Condensation, enters under gravity evaporimeter after condensation heat release（4）, evaporation
Condenser is returned after heat absorption（2）；
Whole system is run in the presence of the cold-producing medium power that suffered gravity and compressor are provided in conduit.
8. control method according to claim 7, it is characterised in that：In each mode, the system is also by adjusting
Outdoor fan（5）To adjust condenser（2）Air quantity, the refrigerating capacity of unit is adjusted, be accurately controlled interior temperature.
9. control method according to claim 7, it is characterised in that：In each mode, the system is also by cooling
Water loop water pump（5’）Rotating speed adjusting condenser（2）The water yield, the refrigerating capacity of unit is adjusted, be accurately controlled room
Interior temperature.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611061024.3A CN106679210A (en) | 2016-11-28 | 2016-11-28 | Novel variable-pressure-ratio steam compression/heat pipe integrated machine room air conditioner system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611061024.3A CN106679210A (en) | 2016-11-28 | 2016-11-28 | Novel variable-pressure-ratio steam compression/heat pipe integrated machine room air conditioner system and control method thereof |
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Family
ID=58866858
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|---|---|---|---|
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