CN105910315B - A kind of control method of compound computer-room air conditioning system - Google Patents
A kind of control method of compound computer-room air conditioning system Download PDFInfo
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- CN105910315B CN105910315B CN201610425330.4A CN201610425330A CN105910315B CN 105910315 B CN105910315 B CN 105910315B CN 201610425330 A CN201610425330 A CN 201610425330A CN 105910315 B CN105910315 B CN 105910315B
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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
- 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
- F25B41/40—Fluid line arrangements
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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Abstract
The invention discloses a kind of compound computer-room air conditioning system and its control method, including refrigeration unit, heat pipe unit and triple valve；Refrigeration unit includes one or more compressor, refrigerant condenser, throttling arrangement and low-pressure oil storages；Heat pipe unit includes low-pressure oil storage, evaporator, refrigerated medium pump and heat pipe condenser；Refrigeration unit is coupled with heat pipe unit at low-pressure oil storage；A kind of compound computer-room air conditioning system exports accuracy controlling parameter by controlling the temperature of low-pressure oil storage internal refrigeration storage agent to be used as system cold；A kind of compound computer-room air conditioning system controls the switching of triple valve according to outdoor environment temperature, it is separately operable kind of refrigeration cycle, combined-circulation and heat pipe circulation, suitable for the refrigeration demand of the round-the-clock air-conditioning such as computer room, base station, maximally utilize round the clock, transition season and the natural cooling source in winter；System design is compact-sized, reliability is high, energy conservation and environmental protection, and the thermal efficiency is high, and stability is good, and degree of regulation is high.
Description
Technical field
The present invention relates to air-conditioning technical field, is specially a kind of control method of compound computer-room air conditioning system.
Background technology
The fast development of information industry and digital Construction, has promoted computer room, the quantity of base station, and construction scale quickly increases
Long, computer room, the energy consumption of base station air conditioner account for the 40%~50% of its total energy consumption according to statistics.Computer room, the sensible heat load of base station are than big, and one
The four seasons in year need to continuously be run, and design temperature is less than the season of outdoor temperature indoors, and conventional air-conditioning system still needs to continue to run with
Compression-type refrigerating system, refrigeration system work efficiency is low and easily breaks down, and is conveyed when that can utilize indoor/outdoor temperature-difference low cost
Heat provides cold for indoor, will greatly reduce the energy consumption and operating cost of air-conditioning system.Lead in high temperature seasons such as summers
Cross and utilize cold achievable refrigeration system Effec-tive Function, significantly lifting system efficiency.It is indoor using outdoor Cryogenic air
The method for providing cold has obtained the concern of scholar in the industry and engineers and technicians, and expansion engineering technology is ground in different forms
Study carefully, the fresh air system such as used at present, in addition with various forms of gas-gas, air-water heat-exchange system, and using heat pipe
The composite air conditioner of technology.
A kind of air-cooling thermotube-type machine room air-conditioning system is disclosed in Chinese invention patent application CN201010528027.X,
The system has two kinds of operating modes of compression-type refrigeration and heat pipe circularly cooling.The refrigeration mode work when outdoor temperature >=20 DEG C
Make, participate in the first refrigeration working medium of kind of refrigeration cycle evaporation endothermic in evaporative condenser, the second refrigeration working medium of cooling and condensation；When
During 20 DEG C of outdoor temperature ＜, system is converted to heat pipe circularly cooling pattern, using outdoor Cryogenic air to the second refrigeration working medium into
Row cooling and condensation, compression-type refrigeration circulation are stopped, so as to effectively reduce annual air conditioning energy consumption.This system is utilizing outdoor
Cryogenic air cold and ensure to compensate for the deficiency of first two system in terms of indoor air quality, but compression-type refrigeration and heat pipe follow
Ring two kinds of operating modes of refrigeration switch in a certain temperature spot, and can the refrigerating capacity of system steadily be connected and reliably working etc., is worth
Consider；The relatively low cold for being unfavorable for maximally utilizing outdoor Cryogenic air of ceiling temperature of heat pipe cycle operation at the same time.
Patent of invention CN01278831.7 discloses a kind of energy-saving refrigeration cycling devices with circulating pump, is circulated in heat pipe
The middle work efficiency for being conducive to improve heat pipe circulation using circulating pump, to condenser, liquid storage when also simplify hot-pipe system installation
The requirement of device and evaporator relative position, but CN01278831.7 in terms of the cold of outdoor Cryogenic air is maximally utilized not
Foot is similar with CN201010528027.X, i.e., the ceiling temperature of heat pipe cycle operation relatively low could must steadily be held in the mouth with kind of refrigeration cycle
Connect.
A kind of machine with natural cooling is disclosed in Chinese invention patent CN200910105617 and CN200910181213
Room air-conditioning system, refrigerated medium pump unit is included in system, and natural cooling unit shares set of system with refrigeration unit, also known as
Integral composite computer-room air conditioning system, although reducing system cost, system is cut in refrigeration mode and natural cooling pattern
System can be caused to damage system, while outdoor natural cooling source cannot be made full use of there are high pressure hardness switching when changing；For in
Portion, south is especially short close to equator area heat pipe run time, and energy-saving efficiency is low.
Patent of invention ZL201210037332.8 and patent of invention ZL201210037082.8 propose a kind of with recombination region
Heat pipe combined computer-room air conditioning system, also known as overlapping combined type computer-room air conditioning system, using power type separate-type heat pipe system with steaming
Vapour pressure compression type refrigerating system is for composite at intermediate condensation evaporator (evaporation coil) place, and refrigeration system is heat pipe in transition season
System balance cold, widens hot-pipe system operation temperature area.But patent of invention ZL201210037082.8 is sharp in cooling mode
Cold is provided for end with secondary heat exchange mode, reduces cooling system efficiency；And ZL201210037332.8 refrigeration mode with
When heat pipe pattern both of which switches, it may appear that the output of system cold is unstable, excessive unstable state.
Computer-room air conditioning system on being coupled using power type separate heat pipe with vapour compression refrigeration system is gone back at present
It has been proposed that, not it has been proposed that widen heat pipe operation temperature area in spring, autumn transition season, deficiency was not condensed according to heat pipe yet
Place freezes on demand, while various pattern switchings are in outside, and cold output in end remains steady.Two are used for high circumstance temperature
Air entry difference evaporating temperature realizes supercooling function, ensures that system has the air-conditioning system for stablizing cold output under high circumstance temperature operating mode
At present not it has been proposed that.
The content of the invention
It is an object of the invention to provide a kind of control method of compound computer-room air conditioning system, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides following technical solution：Compound computer-room air conditioning system, including refrigeration are single
Member, heat pipe unit and triple valve；The refrigeration unit include one or more compressors, refrigerant condenser, throttling arrangement and
Low-pressure oil storage；The heat pipe unit includes low-pressure oil storage, evaporator, refrigerated medium pump and heat pipe condenser；The system
Cold unit is coupled with heat pipe unit at low-pressure oil storage；The compound computer-room air conditioning system is by controlling low pressure to store up
The temperature of liquid device internal refrigeration storage agent exports accuracy controlling parameter as system cold；The compressor has exhaust outlet and air-breathing
Mouthful, the low-pressure oil storage includes inlet, supply opening, air inlet and gas returning port；
The exhaust outlet of the compressor is connected with the entrance of refrigerant condenser, the outlet of the refrigerant condenser with
The entrance of throttling arrangement is connected, and the outlet of the throttling arrangement is connected with the inlet of low-pressure oil storage, and described is low
The gas returning port of pressure reservoir is connected with the air entry of compressor；The supply opening of the low-pressure oil storage and entering for refrigerated medium pump
Mouth is connected, and the outlet of the refrigerated medium pump is connected with evaporator inlet, and the exit of the evaporator sets threeway
Valve；The outlet of the air inlet and heat pipe condenser of the low-pressure oil storage passes through coil pipe parallel communication；
The triple valve closes the connection with heat pipe condenser, when opening the connection with low-pressure oil storage and evaporator,
Compressor, refrigerant condenser, throttling arrangement, low-pressure oil storage, refrigerated medium pump, evaporator and the triple valve collectively constitutes system
SAPMAC method, cold is provided by kind of refrigeration cycle for air conditioning terminal；
The triple valve opens the connection with evaporator and heat pipe condenser, when closing the connection with low-pressure oil storage,
Compressor, refrigerant condenser, throttling arrangement, low-pressure oil storage, refrigerated medium pump, evaporator, triple valve and the heat pipe condensation
Device collectively constitutes combined-circulation, and heat pipe unit is operated at full capacity at this time, and refrigeration unit works in right amount；
The triple valve opens the connection with evaporator and heat pipe condenser, when closing the connection with low-pressure oil storage,
Close compressor, refrigerant condenser and throttling arrangement, the low-pressure oil storage, evaporator, refrigerated medium pump, triple valve and heat pipe
Condenser collectively constitutes heat pipe circulation；
The compound computer-room air conditioning system further includes temperature control equipment, oil eliminator and gas-liquid separator, described
Temperature control equipment be connected respectively with the heat exchange blower fan and compressor of triple valve, heat pipe condenser and refrigerant condenser；Institute
The temperature control equipment stated is used for environment temperature and low-pressure oil storage internal refrigeration storage agent temperature outside sensing chamber, and according to environment
The operating status of temperature control triple valve, heat exchange blower fan and compressor；Wherein, the triple valve can be replaced by two valve bodies
Generation；
The compound computer-room air conditioning system can form multi-joint compound computer room by increasing one or more equipment
Air-conditioning system, forms closed circulation system, in evaporator by refrigerated medium pump, feed flow manifold and return-air manifold and multiple equipment
Refrigeration valve and heat pipe valve are set at general export；The outlet of the heat pipe valve is connected with heat pipe condenser entrance, heat pipe condensation
The outlet of device and the outlet of refrigeration valve are all connected to the air inlet of low-pressure oil storage, and the arrival end of the evaporator sets stream
Valve is measured, the temperature-sensing element of the flow valve is installed on the tube wall of the port of export of evaporator；The flow valve is ratio tune
Valve is saved, so as to control the liquid supply rate of evaporator and its degree of superheat of outlet, can be realized accurate by adjusting the aperture of flow valve
Adjust the flow of air conditioning terminal.
Preferably, the throttling arrangement includes electric expansion valve or capillary.
Preferably, the heat pipe condenser and refrigerant condenser use parallel-flow heat exchanger or finned heat exchanger,
And in face of wind direction parallel side-by-side.
Preferably, the heat pipe condenser and refrigerant condenser can share a heat exchange blower fan, can also be only respectively
Displacement air-heater is erected, when heat pipe condenser and refrigerant condenser share a heat exchange blower fan, then heat exchange of heat pipe is positioned at heat exchange
The inlet air side of wind turbine, refrigerant condenser are located at the air side of heat exchange blower fan.
Preferably, the refrigerated medium pump both ends are parallel with by-passing valve, and by-passing valve is used for adjusting refrigerant flow rate；Work as refrigeration
Agent pump is variable frequency pump, then by-passing valve can be cancelled.
The compound computer-room air conditioning system, its control method are：
The compound computer-room air conditioning system, point three kinds of situations have three kinds of different control modes, the first control mode：
When summer, in the case that outdoor environment temperature T is higher than preset temperature Tb, temperature control equipment control threeway Vavle switching
To kind of refrigeration cycle, at this time compressor unlatching, heat exchange blower fan full speed running, then refrigerant is in the compound computer-room air conditioning system
Circulation path be：From compressor to refrigerant condenser, then to throttling arrangement and low-pressure oil storage, then from low-pressure oil storage to pressure
Contracting machine and refrigerated medium pump, refrigerant is again from refrigerated medium pump to evaporator, then pass through triple valve, low-pressure oil storage and refrigerant successively
Pump；Since outdoor environment temperature is high, make the thermic load amount of the compound computer-room air conditioning system larger, so temperature control equipment
While controlling the compound computer-room air conditioning system generation cold, acted on, made described compound by refrigerated medium pump transportation power
Type computer-room air conditioning system oil return is safe and reliable；The compound computer-room air conditioning system works as low pressure receiver in the case of kind of refrigeration cycle
Device internal refrigeration storage agent temperature meets
T1- Δs T≤T0≤T1+ Δ T, wherein：
T1：The design temperature of low-pressure oil storage internal refrigeration storage agent；
ΔT：The temperature of low-pressure oil storage internal refrigeration storage agent and the allowable error value of design temperature；
T0：The temperature of low-pressure oil storage internal refrigeration storage agent；
Then maintain the quantity of compressor operating or the aperture of rotating speed and throttling arrangement constant；Made inside low-pressure oil storage
Refrigerant temperature meets
T0 ＜ T1- Δ T,
Then reduce the rotating speed of compressor or reduce the operation quantity of compressor, tune up the aperture of throttling arrangement；When low pressure is stored up
Liquid device internal refrigeration storage agent temperature meets
T0 ＞ T1+ Δ T,
Then lift compressor rotary speed or increase the quantity of compressor operating, reduce the aperture of throttling arrangement；
Second of control mode：When in spring or autumn, outdoor environment temperature T is low far above design temperature Ta
In the case of preset temperature Tb, temperature control equipment control triple valve is switched to combined-circulation, and compressor is opened at this time, heat exchange
Wind turbine full speed running, then circulation path of the refrigerant in the compound computer-room air conditioning system be：It is cold from compressor to freezing
Condenser, then to throttling arrangement and low-pressure oil storage, then from low-pressure oil storage to compressor and refrigerated medium pump, refrigerant is again from refrigeration
Agent is pumped to evaporator, then passes through triple valve, heat pipe condenser, low-pressure oil storage and refrigerated medium pump successively；Due to outdoor environment temperature
Spend it is relatively low, so while temperature control equipment controls the compound computer-room air conditioning system heat pipe unit is radiated, no
Foot point is compensated by kind of refrigeration cycle；According to law of conservation of energy, the gaseous state or gas that are flowed out in second of control mode from evaporator
The refrigerant of liquid mixed state first passes through heat pipe condenser and cools down, the gaseous refrigerant not being condensed again by compressor suck into
Row compression kind of refrigeration cycle realizes condensation, is mutually fitted with thermic load so as to be exported in the cold for meeting the compound computer-room air conditioning system
On the premise of answering, the power that the compound computer-room air conditioning system is consumed because producing cold is reduced, and then realize described
The energy-saving and emission-reduction of compound computer-room air conditioning system, while acted on by refrigerated medium pump transportation power, make the compound computer room empty
Adjusting system oil return is safe and reliable；
The compound computer-room air conditioning system starts one or more compressions in the case of combined-circulation, according to specific load
Machine, or compressor operating frequency is adjusted, realize the accurate adjusting of cold output, control the exchange capability of heat of heat pipe condenser and change
The refrigeratory capacity that air-heater rotating speed circulates heat pipe matches with end thermic load；The compound computer-room air conditioning system is followed compound
In the case of ring, preferentially provide cold using heat pipe condenser, the part of insufficient cold by control compressor operation number of units or
The rotating speed of compressor compensates；The control mode of described compound-refrigerating circulation is：When there is compressor operating in outdoor, then air-conditioning
The heat exchange blower fan high-speed cruising of all outdoor combined refrigeration systems, the heat release first in heat pipe condenser are uncooled in system
Gaseous refrigerant enter low-pressure oil storage after sucked by compressor, by compression, condensation, throttling flow into low-pressure oil storage again；
The regulative mode of described compound-refrigerating circulation is：When low-pressure oil storage internal refrigeration storage agent temperature meets
T1- Δs T≤T0≤T1+ Δ T,
Then maintain compressor operating quantity or the aperture of rotating speed and throttling arrangement constant；When low-pressure oil storage internal refrigeration storage agent
Temperature meets
T0 ＜ T1- Δ T,
Then reduce compressor rotary speed or reduce compressor operating quantity, tune up throttling arrangement aperture；When in low-pressure oil storage
Portion's refrigerant temperature meets
T0 ＞ T1+ Δ T,
Compressor rotary speed or increase compressor operating quantity are then lifted, reduces throttling arrangement aperture；
The third control mode：When winter, in the case that outdoor environment temperature T is less than design temperature Ta, temperature
Control device control triple valve is switched to heat pipe circulation, and compressor is closed at this time, and heat exchange blower fan full speed or speed governing operation, then freeze
The circulation path in the compound computer-room air conditioning system of agent is：From refrigerated medium pump to evaporator, then pass through threeway successively
Valve, heat pipe condenser, low-pressure oil storage and refrigerated medium pump；Since outdoor environment temperature is far below computer room temperature, and can be to machine
Room provides sufficient cold so as to maintain suitable temperature in computer room, therefore makes the gas from evaporator outflow in the third control mode
Low-temperature receiver of the refrigerant of state or gas-liquid mixed state in heat pipe condenser and outdoor environment carries out heat exchange, to reduce refrigerant
Temperature, and the refrigerant after cooling is again introduced into evaporator and cool down to computer room, so as to meet the need that freeze in computer room
On the premise of asking, the energy consumption of the compound computer-room air conditioning system is greatly reduced；The compound computer-room air conditioning system
Under heat pipe loop condition, it can realize that cold output is adjusted by adjusting the rotating speed of heat exchange blower fan or the flow of refrigerant,
The production for controlling the exchange capability of heat of heat pipe condenser and heat exchange blower fan rotating speed to circulate heat pipe
Cold matches with end thermic load；When low-pressure oil storage internal refrigeration storage agent temperature meets
T1- Δs T≤T0≤T1+ Δ T,
Then maintain heat exchange blower fan rotating speed and refrigerated medium pump flow constant；When low-pressure oil storage internal refrigeration storage agent temperature meets
T0 ＜ T1- Δ T,
Then preferentially reduce cold output or adjusting flow valve opening reduction refrigerated medium pump by reducing heat exchange blower fan rotating speed
Flow exports, and when needing to continue to reduce, then cuts off one of heat exchange blower fan；When low-pressure oil storage internal refrigeration storage agent temperature meets
T0 ＞ T1+ Δ T,
Then first pass through the increase cold output of lifting heat exchange blower fan rotating speed or adjust flow valve opening and improve refrigerated medium pump stream
Amount output.
Compared with prior art, the beneficial effects of the invention are as follows：A kind of control of the compound computer-room air conditioning system
Method controls the switching of triple valve according to outdoor environment temperature, is separately operable kind of refrigeration cycle, combined-circulation and heat pipe circulation, is applicable in
In the refrigeration demand of the round-the-clock air-conditioning such as computer room, base station, maximally utilize round the clock, transition season and the natural cooling source in winter；Institute
A kind of compound computer-room air conditioning system design structure for stating is compact, reliability is high, energy conservation and environmental protection, and the thermal efficiency is high, reliability
Height, stability is good, and degree of regulation is high；Refrigerated medium pump conveying refrigerant is indoor centralized cycle cooling, and power cycle reliability is high,
Limited from installation site；Heat exchanger structure is compact, avoids the problem of heat transfer efficiency is low, and heat exchanger area is huge, and follow
Circulation is small, and conveying work(is small；Using refrigerated medium pump forced circulation, liquid supply rate is stablized, and flow-rate adjustment is convenient, accurate；Refrigerated medium pump
Pressure head can carry out best match according to feed flow distance, drop and system resistance, be conducive to the accurate control of air-conditioner temperature.
Brief description of the drawings
Fig. 1 is the systematic schematic diagram of the present invention；
Fig. 2 is refrigeration cycle figure of the present invention；
Fig. 3 is the pressure-enthalpy chart of refrigeration cycle of the present invention；
Fig. 4 is combined-circulation loop diagram of the present invention；
Fig. 5 is the pressure-enthalpy chart in combined-circulation circuit of the present invention；
Fig. 6 is heat pipe circulating circuit figure of the present invention；
Fig. 7 is the pressure-enthalpy chart of heat pipe circulation loop of the present invention；
Fig. 8 is present system energy consumption analysis figure；
Fig. 9 is present system control mode figure；
Figure 10 is the multi-joint compound computer-room air conditioning system schematic diagram of the present invention；
Figure 11 is the refrigeration cycle figure of the multi-joint compound computer-room air conditioning system of the present invention；
Figure 12 is the combined-circulation loop diagram of the multi-joint compound computer-room air conditioning system of the present invention；
Figure 13 is the heat pipe circulating circuit figure of the multi-joint compound computer-room air conditioning system of the present invention.
In figure：1st, compressor, 2, refrigerant condenser, 3, throttling arrangement, 4, low-pressure oil storage, 5, evaporator, 6, refrigerant
Pump, 7, triple valve, 8, heat pipe condenser.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
- 13 are please referred to Fig.1, the present invention provides a kind of technical solution：Compound computer-room air conditioning system, including refrigeration unit,
Heat pipe unit and triple valve 7；Refrigeration unit includes one or more compressors 1, refrigerant condenser 2, throttling arrangement 3 and low pressure storage
Liquid device 4；Heat pipe unit includes low-pressure oil storage 4, evaporator 5, refrigerated medium pump 6 and heat pipe condenser 8；Refrigeration unit and heat pipe list
Member is coupled at low-pressure oil storage 4；Compound computer-room air conditioning system is by controlling the temperature of 4 internal refrigeration storage agent of low-pressure oil storage
Degree is as system cold output accuracy controlling parameter；Compressor 1 has exhaust outlet and air entry, and low-pressure oil storage 4 includes feed liquor
Mouth, supply opening, air inlet and gas returning port；
The exhaust outlet of compressor 1 is connected with the entrance of refrigerant condenser 2, outlet and the throttling arrangement 3 of refrigerant condenser 2
Entrance be connected, the outlet of throttling arrangement 3 is connected with the inlet of low-pressure oil storage 4, the gas returning port of low-pressure oil storage 4 with
The air entry of compressor 1 is connected；The supply opening of low-pressure oil storage 4 is connected with the entrance of refrigerated medium pump 6, refrigerated medium pump 6
Outlet is connected with 5 entrance of evaporator, and the exit of evaporator 5 sets triple valve 7；The air inlet and heat pipe of low-pressure oil storage 4
The outlet of condenser 8 passes through coil pipe parallel communication；
Triple valve 7 closes the connection with heat pipe condenser 8, when opening the connection with low-pressure oil storage 4 and evaporator 5, pressure
Contracting machine 1, refrigerant condenser 2, throttling arrangement 3, low-pressure oil storage 4, refrigerated medium pump 6, evaporator 5 and triple valve 7 collectively constitute system
SAPMAC method, cold is provided by kind of refrigeration cycle for air conditioning terminal；
Triple valve 7 opens the connection with evaporator 5 and heat pipe condenser 8, when closing the connection with low-pressure oil storage 4, pressure
Contracting machine 1, refrigerant condenser 2, throttling arrangement 3, low-pressure oil storage 4, refrigerated medium pump 6, evaporator 5, triple valve 7 and heat pipe condenser
8 collectively constitute combined-circulation, and heat pipe unit is operated at full capacity at this time, and refrigeration unit works in right amount；
Triple valve 7 opens the connection with evaporator 5 and heat pipe condenser 8, when closing the connection with low-pressure oil storage 4, closes
Close compressor 1, refrigerant condenser 2 and throttling arrangement 3, low-pressure oil storage 4, evaporator 5, refrigerated medium pump 6, triple valve 7 and heat pipe
Condenser 8 collectively constitutes heat pipe circulation；
Compound computer-room air conditioning system further includes temperature control equipment, oil eliminator and gas-liquid separator, temperature control dress
Put and be connected respectively with triple valve 7, heat pipe condenser 8 with the heat exchange blower fan and compressor 1 of refrigerant condenser 2；Temperature control fills
The 4 internal refrigeration storage agent temperature of environment temperature and low-pressure oil storage outside for sensing chamber is put, and threeway is controlled according to environment temperature
The operating status of valve 7, heat exchange blower fan and compressor 1；Wherein, triple valve 7 can be substituted by two valve bodies；
Compound computer-room air conditioning system can form multi-joint compound air conditioner in machine room system by increasing one or more equipment
System, forms closed circulation system, in always going out for evaporator 5 by refrigerated medium pump 6, feed flow manifold and return-air manifold and multiple equipment
Refrigeration valve and heat pipe valve are set at mouthful；The outlet of heat pipe valve is connected with 8 entrance of heat pipe condenser, the outlet of heat pipe condenser 8
And the outlet of refrigeration valve is all connected to the air inlet of low-pressure oil storage 4, the arrival end of evaporator 5 sets flow valve, flow valve
Temperature-sensing element be installed on evaporator 5 the port of export tube wall on；Flow valve is ratio adjusting valve, can be by adjusting flow valve
Aperture, so as to control the liquid supply rate of evaporator 5 and its degree of superheat of outlet, realize the accurate flow for adjusting air conditioning terminal.
Throttling arrangement 3 includes electric expansion valve or capillary；Heat pipe condenser 8 and refrigerant condenser 2 use concurrent flow
Heat exchanger or finned heat exchanger, and in face of wind direction parallel side-by-side；Heat pipe condenser 8 and refrigerant condenser 2 can share one
Heat exchange blower fan, can also independently set heat exchange blower fan, when heat pipe condenser 8 and refrigerant condenser 2 share a heat exchange wind
Machine, then heat exchange of heat pipe 8 be located at the inlet air side of heat exchange blower fan, refrigerant condenser 2 is located at the air side of heat exchange blower fan；Refrigerated medium pump
6 both ends are parallel with by-passing valve, and by-passing valve is used for adjusting refrigerant flow rate；When refrigerated medium pump 6 is variable frequency pump, then by-passing valve can take
Disappear.
Embodiment 1：
When summer, when outdoor environment temperature T be 33 DEG C, more than preset temperature Tb be 25 DEG C, at this time determine air-conditioning
Unit operation pattern is kind of refrigeration cycle, and temperature control equipment control triple valve 7 is switched to kind of refrigeration cycle, and compressor 1 is opened at this time,
Heat exchange blower fan full speed running, then circulation path of the refrigerant in compound computer-room air conditioning system be：It is cold from compressor 1 to freezing
Condenser 2, then to throttling arrangement 3 and low-pressure oil storage 4, then from low-pressure oil storage 4 to compressor 1 and refrigerated medium pump 6, refrigerant is again
From refrigerated medium pump 6 to evaporator 5, then pass through triple valve 7, low-pressure oil storage 4 and refrigerated medium pump 6 successively；Due to outdoor environment temperature
Spend T high so that the thermic load amount of compound computer-room air conditioning system is larger, so temperature control equipment controls compound air conditioner in machine room
While system produces cold, acted on by 6 transportation power of refrigerated medium pump so that compound computer-room air conditioning system oil return safely may be used
Lean on；Compound computer-room air conditioning system is in the case of kind of refrigeration cycle, when 4 internal refrigeration storage agent temperature of low-pressure oil storage meets
T1- Δs T≤T0≤T1+ Δ T, wherein：
T1：The temperature of 4 internal refrigeration storage agent of low-pressure oil storage；
ΔT：The temperature of 4 internal refrigeration storage agent of low-pressure oil storage and the allowable error value of design temperature, are set to T=2 DEG C of Δ；
T0：The design temperature of 4 internal refrigeration storage agent of low-pressure oil storage, is set to 16 DEG C；
Then maintain quantity or the aperture of rotating speed and throttling arrangement 3 of the operation of compressor 1 constant；When in low-pressure oil storage 4
Portion's refrigerant temperature meets
T0 ＜ T1- Δ T,
Then reduce the rotating speed of compressor 1 or reduce the operation quantity of compressor 1, tune up the aperture of throttling arrangement 3；Work as low pressure
4 internal refrigeration storage agent temperature of reservoir meets
T0 ＞ T1+ Δ T,
Then lift 1 rotating speed of compressor or increase the quantity that compressor 1 is run, reduce the aperture of throttling arrangement 3.
Energy consumption figure as shown in Figure 8, abscissa represent outdoor environment temperature T, and ordinate represents computer room load and energy consumption, with
Outdoor environment temperature T rises, computer room load is in certain and increases state, when outdoor environment temperature T is higher than predetermined temperature Tb,
Compound computer-room air conditioning system runs refrigeration mode, and system energy consumption is as shown in bold portion in Fig. 8, and conventional air conditioning system
Energy consumption is as shown in phantom in FIG..
Embodiment 2：
It is 25 DEG C less than preset temperature Tb when outdoor environment temperature T is 22 DEG C when in spring or autumn, it is high
In the case that design temperature Ta is 15 DEG C, determine that air-conditioner set operational mode is combined-circulation at this time, temperature control equipment control
Triple valve 7 processed is switched to combined-circulation, and compressor 1 is opened at this time, and heat exchange blower fan full speed running, then refrigerant is in compound computer room
Circulation path in air-conditioning system is：From compressor 1 to refrigerant condenser 2, then to throttling arrangement 3 and low-pressure oil storage 4, then from
Low-pressure oil storage 4 arrives compressor 1 and refrigerated medium pump 6, and refrigerant is again from refrigerated medium pump 6 to evaporator 5, then passes through triple valve successively
7, heat pipe condenser 8, low-pressure oil storage 4 and refrigerated medium pump 6；Since outdoor environment temperature T is relatively low, so temperature control equipment control
While making compound computer-room air conditioning system preferentially makes the heat pipe unit radiate, insufficient section is compensated by kind of refrigeration cycle；According to energy
Law of conservation, the gaseous state or the refrigerant of gas-liquid mixed state flowed out from evaporator 5 in second of control mode first pass through heat pipe cold
Condenser 8 cools down, and the gaseous refrigerant not being condensed is compressed kind of refrigeration cycle by the suction of compressor 1 again and realizes condensation, from
And on the premise of the cold for meeting compound computer-room air conditioning system is exported and is adapted with thermic load, it is empty to reduce compound computer room
The power that adjusting system is consumed because producing cold, and then the energy-saving and emission-reduction of compound computer-room air conditioning system are realized, pass through at the same time
6 transportation power of refrigerated medium pump acts on so that compound computer-room air conditioning system oil return is safe and reliable；
Compound computer-room air conditioning system starts one or more compressors 1 in the case of combined-circulation, according to specific load,
Or 1 running frequency of compressor is adjusted, realize the accurate adjusting of cold output, control the exchange capability of heat of heat pipe condenser 8 and change
The refrigeratory capacity that air-heater rotating speed circulates heat pipe matches with end thermic load；Compound computer-room air conditioning system is in combined-circulation feelings
Under condition, preferentially cold is provided using heat pipe condenser 8, the part of insufficient cold is by controlling the operation number of units or pressure of compressor 1
The rotating speed of contracting machine 1 compensates；Compound-refrigerating circulation control mode be：When outdoor has compressor 1 to run, then in air-conditioning system
The heat exchange blower fan high-speed cruising of all outdoor combined refrigeration systems, the first heat release in heat pipe condenser 8, uncooled gaseous state
Refrigerant is sucked after entering low-pressure oil storage 4 by compressor 1, and by compression, condensation, throttling flows into low-pressure oil storage 4 again；It is compound
The regulative mode of kind of refrigeration cycle is：When 4 internal refrigeration storage agent temperature of low-pressure oil storage meets
T1- Δs T≤T0≤T1+ Δ T, wherein：
T1：The temperature of 4 internal refrigeration storage agent of low-pressure oil storage；
ΔT：The temperature of 4 internal refrigeration storage agent of low-pressure oil storage and the allowable error value of design temperature, are set to T=2 DEG C of Δ；
T0：The design temperature of 4 internal refrigeration storage agent of low-pressure oil storage, is set to 16 DEG C；
Then maintain the operation quantity of compressor 1 or the aperture of rotating speed and throttling arrangement 3 constant；When the inside of low-pressure oil storage 4 system
Refrigerant temperature meets
T0 ＜ T1- Δ T,
Then reduce by 1 rotating speed of compressor or reduce compressor 1 and run quantity, tune up 3 aperture of throttling arrangement；Work as low-pressure oil storage
4 internal refrigeration storage agent temperature meet
T0 ＞ T1+ Δ T,
Then lift 1 rotating speed of compressor or increase compressor 1 runs quantity, reduce 3 aperture of throttling arrangement.
Energy consumption figure as shown in Figure 8, abscissa represent outdoor environment temperature T, and ordinate represents computer room load and energy consumption, with
Outdoor environment temperature T rises, computer room load is in certain and increases state, when outdoor environment temperature T between design temperature Ta with
When between predetermined temperature Tb, compound computer-room air conditioning system runs combined-circulation, system energy consumption as shown in bold portion in Fig. 8,
And conventional air conditioning system energy consumption is as shown in phantom in FIG..
Embodiment 3：
When winter, when outdoor environment temperature T be 8 DEG C, less than design temperature Ta be 15 DEG C in the case of, at this time really
Determine air-conditioner set operational mode to circulate for heat pipe, temperature control equipment control triple valve 7 is switched to heat pipe circulation, at this time compressor
1 closes, heat exchange blower fan full speed or speed governing operation, then the circulation path in compound computer-room air conditioning system of refrigerant is：From
Refrigerated medium pump 6 arrives evaporator 5, then passes through triple valve 7, heat pipe condenser 8, low-pressure oil storage 4 and refrigerated medium pump 6 successively；Due to
Outdoor environment temperature T is far below computer room temperature, and sufficient cold can be provided to computer room so as to maintain suitable temperature in computer room
Degree, thus make in the third control mode from evaporator 5 flow out gaseous state or gas-liquid mixed state refrigerant heat pipe condenser 8 with
Low-temperature receiver in outdoor environment carries out heat exchange, to reduce the temperature of refrigerant, and the refrigerant after cooling is again introduced into evaporation
Cool down in device 5 to computer room, so as to meet in computer room on the premise of refrigeration demand, compound computer room is greatly reduced
The energy consumption of air-conditioning system；Compound computer-room air conditioning system, can be by adjusting the rotating speed of heat exchange blower fan under heat pipe loop condition
Or the flow of refrigerant realizes that cold output is adjusted, the exchange capability of heat and heat exchange blower fan rotating speed for controlling heat pipe condenser 8 make heat
The refrigeratory capacity of pipe circulation matches with end thermic load；When 4 internal refrigeration storage agent temperature of low-pressure oil storage meets
T1- Δs T≤T0≤T1+ Δ T, wherein：
T1：The temperature of 4 internal refrigeration storage agent of low-pressure oil storage；
ΔT：The temperature of 4 internal refrigeration storage agent of low-pressure oil storage and the allowable error value of design temperature, are set to T=2 DEG C of Δ；
T0：The design temperature of 4 internal refrigeration storage agent of low-pressure oil storage, is set to 16 DEG C；
Then maintain heat exchange blower fan rotating speed and 6 flow of refrigerated medium pump constant；When 4 internal refrigeration storage agent temperature of low-pressure oil storage meets
T0 ＜ T1- Δ T,
Then preferentially reduce cold output or adjusting flow valve opening reduction refrigerated medium pump 6 by reducing heat exchange blower fan rotating speed
Flow exports, and when needing to continue to reduce, then cuts off one of heat exchange blower fan；When 4 internal refrigeration storage agent temperature of low-pressure oil storage expires
Foot
T0 ＞ T1+ Δ T,
Then first pass through the increase cold output of lifting heat exchange blower fan rotating speed or adjust flow valve opening raising refrigerated medium pump 6 and flow
Amount output.
Energy consumption figure as shown in Figure 8, abscissa represent outdoor environment temperature T, and ordinate represents computer room load and energy consumption, with
Outdoor environment temperature T rises, computer room load is in certain and increases state, when outdoor environment temperature T is less than design temperature Ta,
Compound computer-room air conditioning system operation heat pipe circulation, system energy consumption is as shown in bold portion in Fig. 8, and conventional air conditioning system energy consumption
As shown in phantom in FIG..
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Improve design and be subject to equivalent substitution or change, should all cover within the scope of the present invention.
Claims (5)
- A kind of 1. control method of compound computer-room air conditioning system, it is characterised in that：The compound computer-room air conditioning system, including refrigeration unit, heat pipe unit and triple valve (7)；The refrigeration unit bag Include one or more compressors (1), refrigerant condenser (2), throttling arrangement (3) and low-pressure oil storage (4)；The heat pipe unit Including low-pressure oil storage (4), evaporator (5), refrigerated medium pump (6) and heat pipe condenser (8)；The refrigeration unit and heat pipe list Member is coupled at low-pressure oil storage (4) place；The compound computer-room air conditioning system is by controlling system inside low-pressure oil storage (4) The temperature of cryogen exports accuracy controlling parameter as system cold；The compressor (1) has exhaust outlet and air entry, described Low-pressure oil storage (4) include inlet, supply opening, air inlet and gas returning port；The exhaust outlet of the compressor (1) is connected with the entrance of refrigerant condenser (2), the refrigerant condenser (2) Outlet is connected with the entrance of throttling arrangement (3), the outlet of the throttling arrangement (3) and the inlet of low-pressure oil storage (4) It is connected, the gas returning port of the low-pressure oil storage (4) is connected with the air entry of compressor (1)；The low-pressure oil storage (4) supply opening is connected with the entrance of refrigerated medium pump (6), outlet and evaporator (5) the entrance phase of the refrigerated medium pump (6) Connection, the exit of the evaporator (5) set triple valve (7)；The air inlet and heat pipe cold of the low-pressure oil storage (4) The outlet of condenser (8) passes through coil pipe parallel communication；The triple valve (7) closes the connection with heat pipe condenser (8), opens and low-pressure oil storage (4) and evaporator (5) During connection, the compressor (1), refrigerant condenser (2), throttling arrangement (3), low-pressure oil storage (4), refrigerated medium pump (6), steaming Hair device (5) and triple valve (7) collectively constitute kind of refrigeration cycle, and cold is provided for air conditioning terminal by kind of refrigeration cycle；The triple valve (7) opens the connection with evaporator (5) and heat pipe condenser (8), closes and low-pressure oil storage (4) During connection, the compressor (1), refrigerant condenser (2), throttling arrangement (3), low-pressure oil storage (4), refrigerated medium pump (6), steaming Hair device (5), triple valve (7) and heat pipe condenser (8) collectively constitute combined-circulation, and heat pipe unit is operated at full capacity at this time, refrigeration Unit works in right amount；The triple valve (7) opens the connection with evaporator (5) and heat pipe condenser (8), closes and low-pressure oil storage (4) During connection, close compressor (1), refrigerant condenser (2) and throttling arrangement (3), the low-pressure oil storage (4), evaporator (5), refrigerated medium pump (6), triple valve (7) and heat pipe condenser (8) collectively constitute heat pipe circulation；The compound computer-room air conditioning system further includes temperature control equipment, oil eliminator and gas-liquid separator, the temperature Control device connects with triple valve (7), heat pipe condenser (8) and the heat exchange blower fan and compressor (1) of refrigerant condenser (2) respectively Connect；The temperature control equipment is used for environment temperature and low-pressure oil storage (4) internal refrigeration storage agent temperature outside sensing chamber, and The operating status of triple valve (7), heat exchange blower fan and compressor (1) is controlled according to environment temperature；Wherein, the triple valve (7) It can be substituted by two valve bodies；The compound computer-room air conditioning system can form multi-joint compound air conditioner in machine room system by increasing one or more equipment System, forms closed circulation system, in evaporator (5) by refrigerated medium pump (6), feed flow manifold and return-air manifold and multiple equipment Refrigeration valve and heat pipe valve are set at general export；The outlet of the heat pipe valve is connected with heat pipe condenser (8) entrance, heat pipe cold The outlet of condenser (8) and the outlet of refrigeration valve are all connected to the air inlet of low-pressure oil storage (4), the evaporator (5) Arrival end sets flow valve, and the temperature-sensing element of the flow valve is installed on the tube wall of the port of export of evaporator (5)；Described Flow valve is ratio adjusting valve, can be by adjusting the aperture of flow valve, so as to control liquid supply rate and its outlet of evaporator (5) The degree of superheat, realize the accurate flow for adjusting air conditioning terminal；The compound computer-room air conditioning system, its control method are：The compound computer-room air conditioning system, point three kinds of situations have three kinds of different control modes, the first control mode：In the summer It when, when outdoor environment temperature T be higher than preset temperature Tb in the case of, temperature control equipment control triple valve (7) switching To kind of refrigeration cycle, at this time compressor (1) unlatching, heat exchange blower fan full speed running, then refrigerant is in the compound air conditioner in machine room system Circulation path in system is：From compressor (1) to refrigerant condenser (2), then to throttling arrangement (3) and low-pressure oil storage (4), then From low-pressure oil storage (4) to compressor (1) and refrigerated medium pump (6), refrigerant again from refrigerated medium pump (6) to evaporator (5), then according to It is secondary to pass through triple valve (7), low-pressure oil storage (4) and refrigerated medium pump (6)；Since outdoor environment temperature is high, make the compound machine The thermic load amount of room air-conditioning system is larger, so the temperature control equipment control compound computer-room air conditioning system produces cold Meanwhile acted on by refrigerated medium pump (6) transportation power, make the compound computer-room air conditioning system oil return safe and reliable；It is described multiple Mould assembly computer-room air conditioning system is in the case of kind of refrigeration cycle, when low-pressure oil storage (4) internal refrigeration storage agent temperature meetsT1- Δs T≤T0≤T1+ Δ T, wherein：T1：The design temperature of low-pressure oil storage (4) internal refrigeration storage agent；ΔT：The temperature of low-pressure oil storage (4) internal refrigeration storage agent and the allowable error value of design temperature；T0：The temperature of low-pressure oil storage (4) internal refrigeration storage agent；Then maintain quantity or the aperture of rotating speed and throttling arrangement (3) of compressor (1) operation constant；When low-pressure oil storage (4) Internal refrigeration storage agent temperature meetsT0 ＜ T1- Δ T,Then reduce the rotating speed of compressor (1) or reduce the operation quantity of compressor (1), tune up the aperture of throttling arrangement (3)；When low Reservoir (4) internal refrigeration storage agent temperature is pressed to meetT0 ＞ T1+ Δ T,Then lift compressor (1) rotating speed or increase the quantity of compressor (1) operation, reduce the aperture of throttling arrangement (3)；Second of control mode：When in spring or autumn, outdoor environment temperature T is higher than design temperature Ta less than default In the case of temperature Tb, temperature control equipment control triple valve (7) is switched to combined-circulation, and compressor (1) is opened at this time, heat exchange Wind turbine full speed running, then circulation path of the refrigerant in the compound computer-room air conditioning system be：From compressor (1) to refrigeration Condenser (2), then to throttling arrangement (3) and low-pressure oil storage (4), then from low-pressure oil storage (4) to compressor (1) and refrigerant Pump (6), refrigerant is again from refrigerated medium pump (6) to evaporator (5), then passes through triple valve (7), heat pipe condenser (8), low pressure successively Reservoir (4) and refrigerated medium pump (6)；Since outdoor environment temperature is relatively low, so temperature control equipment controls the compound machine While room air-conditioning system preferentially makes the heat pipe unit radiate, insufficient section is compensated by kind of refrigeration cycle；According to law of conservation of energy, In two kinds of control modes from evaporator (5) outflow gaseous state or gas-liquid mixed state refrigerant first pass through heat pipe condenser (8) into Row cooling, the gaseous refrigerant not being condensed is compressed kind of refrigeration cycle by compressor (1) suction again and realizes condensation, so that full On the premise of the cold output of the foot compound computer-room air conditioning system is adapted with thermic load, the compound computer room is reduced The power that air-conditioning system is consumed because producing cold, and then the energy-saving and emission-reduction of the compound computer-room air conditioning system are realized, together When by refrigerated medium pump (6) transportation power act on, make the compound computer-room air conditioning system oil return safe and reliable；The compound computer-room air conditioning system starts one or more compressors in the case of combined-circulation, according to specific load (1), or compressor (1) running frequency is adjusted, realizes the accurate adjusting of cold output, the heat exchange of control heat pipe condenser (8) The refrigeratory capacity that ability and heat exchange blower fan rotating speed circulate heat pipe matches with end thermic load；The compound computer-room air conditioning system In the case of combined-circulation, cold preferentially is provided using heat pipe condenser (8), the part of insufficient cold is by controlling compressor (1) operation number of units or the rotating speed of compressor (1) compensates；The control mode of described compound-refrigerating circulation is：Work as outdoor Have compressor (1) operation, then in air-conditioning system it is all outdoor combined refrigeration systems heat exchange blower fan high-speed cruising, first in heat Heat release in pipework condensation device (8), uncooled gaseous refrigerant are sucked after entering low-pressure oil storage (4) by compressor (1), pass through pressure Contracting, condensation, throttling flow into low-pressure oil storage (4) again；The regulative mode of described compound-refrigerating circulation is：Work as low-pressure oil storage (4) internal refrigeration storage agent temperature meetsT1- Δs T≤T0≤T1+ Δ T,Then maintain compressor (1) operation quantity or the aperture of rotating speed and throttling arrangement (3) constant；When low-pressure oil storage (4) is internal Refrigerant temperature meetsT0 ＜ T1- Δ T,Then reduce compressor (1) rotating speed or reduce compressor (1) operation quantity, tune up throttling arrangement (3) aperture；Work as low pressure receiver Device (4) internal refrigeration storage agent temperature meetsT0 ＞ T1+ Δ T,Compressor (1) rotating speed or increase compressor (1) operation quantity are then lifted, reduces throttling arrangement (3) aperture；The third control mode：When winter, in the case that outdoor environment temperature T is less than design temperature Ta, temperature control Device control triple valve (7) is switched to heat pipe circulation, and compressor (1) is closed at this time, and heat exchange blower fan full speed or speed governing operation, then make The circulation path in the compound computer-room air conditioning system of cryogen is：From refrigerated medium pump (6) to evaporator (5), then successively By triple valve (7), heat pipe condenser (8), low-pressure oil storage (4) and refrigerated medium pump (6)；Since outdoor environment temperature is far below Computer room temperature, and sufficient cold can be provided so as to maintain suitable temperature in computer room to computer room, therefore the third control mode In make from evaporator (5) outflow gaseous state or gas-liquid mixed state refrigerant heat pipe condenser (8) with it is cold in outdoor environment Source carry out heat exchange, to reduce the temperature of refrigerant, and make the refrigerant after cooling be again introduced into evaporator (5) to computer room into Row cooling, so as to meet in computer room on the premise of refrigeration demand, is greatly reduced the compound computer-room air conditioning system Energy consumption；The compound computer-room air conditioning system under heat pipe loop condition, can by adjusting heat exchange blower fan rotating speed or The flow of refrigerant realizes that cold output is adjusted, and the exchange capability of heat and heat exchange blower fan rotating speed of control heat pipe condenser (8) make heat pipe The refrigeratory capacity of circulation matches with end thermic load；When low-pressure oil storage (4) internal refrigeration storage agent temperature meetsT1- Δs T≤T0≤T1+ Δ T,Then maintain heat exchange blower fan rotating speed and refrigerated medium pump (6) flow constant；When low-pressure oil storage (4) internal refrigeration storage agent temperature meetsT0 ＜ T1- Δ T,Then preferentially by reducing, heat exchange blower fan rotating speed reduces cold output or adjusting flow valve opening reduction refrigerated medium pump (6) flows Amount output, when needing to continue to reduce, then cuts off one of heat exchange blower fan；When low-pressure oil storage (4), internal refrigeration storage agent temperature expires FootT0 ＞ T1+ Δ T,Then first pass through the increase cold output of lifting heat exchange blower fan rotating speed or adjust flow valve opening and improve refrigerated medium pump (6) flow Output.
- A kind of 2. control method of compound computer-room air conditioning system according to claim 1, it is characterised in that：The section Stream device (3) includes electric expansion valve or capillary.
- A kind of 3. control method of compound computer-room air conditioning system according to claim 1, it is characterised in that：The heat Pipework condensation device (8) and refrigerant condenser (2) use parallel-flow heat exchanger or finned heat exchanger, and parallel simultaneously in face of wind direction Row.
- A kind of 4. control method of compound computer-room air conditioning system according to claim 3, it is characterised in that：The heat Pipework condensation device (8) and refrigerant condenser (2) can share a heat exchange blower fan, can also independently set heat exchange blower fan, when Heat pipe condenser (8) and refrigerant condenser (2) share a heat exchange blower fan, then heat exchange of heat pipe (8) is located at entering for heat exchange blower fan Wind side, refrigerant condenser (2) are located at the air side of heat exchange blower fan.
- A kind of 5. control method of compound computer-room air conditioning system according to claim 1, it is characterised in that：The system Cryogenic fluid pump (6) both ends are parallel with by-passing valve, and by-passing valve is used for adjusting refrigerant flow rate；It is when refrigerated medium pump (6) is variable frequency pump, then other Port valve can be cancelled.
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