CN205690576U - A kind of photovoltaic drives combined type computer-room air conditioning system - Google Patents
A kind of photovoltaic drives combined type computer-room air conditioning system Download PDFInfo
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- CN205690576U CN205690576U CN201620579369.7U CN201620579369U CN205690576U CN 205690576 U CN205690576 U CN 205690576U CN 201620579369 U CN201620579369 U CN 201620579369U CN 205690576 U CN205690576 U CN 205690576U
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Abstract
The utility model discloses a kind of photovoltaic and drive combined type computer-room air conditioning system, including refrigeration unit, heat pipe unit, photovoltaic driver element and three-way valve；Described refrigeration unit includes one or more compressor, refrigerant condenser, throttling arrangement and low-pressure oil storage；Described heat pipe unit includes low-pressure oil storage, vaporizer, refrigerated medium pump and heat pipe condenser；Described refrigeration unit couples at low-pressure oil storage with heat pipe unit；Described photovoltaic driver element is used for as air conditioning unit offer electric energy；A kind of photovoltaic drives combined type computer-room air conditioning system to control the switching of three-way valve according to outdoor environment temperature, it is separately operable kind of refrigeration cycle, combined-circulation and heat pipe circulation, it is applicable to the refrigeration demand of the round-the-clock air-conditioning such as machine room, base station, maximally utilizes round the clock, transition season and the natural cooling source in winter；Air conditioning unit employing photovoltaic drives, more energy-conserving and environment-protective.
Description
Technical field
This utility model relates to air-conditioning technical field, is specially a kind of photovoltaic and drives combined type computer-room air conditioning system.
Background technology
Information industry and the fast development of digital Construction, promoted the quantity of machine room, base station, and construction scale quickly increases
Long, machine room, the energy consumption of base station air conditioner account for the 40%～50% of its total energy consumption according to statistics.Machine room, the sensible heat load of base station compare big, and one
The four seasons in year need to be run continuously, is less than the season of outdoor temperature at indoor design temperature, and conventional air conditioning system still needs to continue to run with
Compression-type refrigerating system, refrigeration system inefficiency and also easily break down, carry when indoor/outdoor temperature-difference low cost can be utilized
Heat or for indoor provide cold, energy consumption and the operating cost of air conditioning system will be greatly reduced.Lead at high temperature seasons such as summers
Cross and utilize the cold refrigeration system Effec-tive Function that realizes, significantly promote system energy efficiency.Utilizing outdoor Cryogenic air is indoor
The method providing cold has obtained scholar and the concern of engineers and technicians in the industry, and expansion engineering is ground in different forms
Study carefully, such as the VMC (Ventilation Mechanical Control System) used at present, in addition with gas-gas, the air-water heat-exchange system of multi-form, and apply heat pipe
The composite air conditioner of technology.
Chinese utility model patent application CN201010528027.X discloses a kind of air-cooled heat pipe type air conditioner in machine room
System, this system has compression-type refrigeration and two kinds of mode of operations of heat pipe circularly cooling.Freeze mould when outdoor temperature >=20 DEG C
Formula works, and participates in the first refrigeration working medium evaporation endothermic in evaporative condenser of kind of refrigeration cycle, cools down and condense the second refrigeration work
Matter；When outdoor temperature ＜ 20 DEG C, system is converted to heat pipe circularly cooling pattern, utilizes outdoor Cryogenic air to the second refrigeration work
Matter cools down and condenses, and compression-type refrigeration circulation quits work, thus effectively reduces annual air conditioning energy consumption.This system is utilizing
Outdoor Cryogenic air cold and guarantee that indoor air quality aspect compensate for the deficiency of first two system, but compression-type refrigeration and heat
Two kinds of mode of operations of pipe circularly cooling switch at a certain temperature spot, and can the refrigerating capacity of system steadily be connected and reliably working etc.,
It is worth considering；The ceiling temperature of the work of heat pipe circulation simultaneously is on the low side is unfavorable for maximally utilizing the cold of outdoor Cryogenic air.
Utility model patent CN01278831.7 discloses the energy-saving refrigeration cycling devices of a kind of band circulating pump, at heat pipe
In circulation use circulating pump be conducive to improve heat pipe circulation work efficiency, also simplify hot-pipe system install time to condenser,
Reservoir and vaporizer are relative to the requirement of position, but CN01278831.7 is in terms of maximally utilizing the cold of outdoor Cryogenic air
Deficiency similar with CN201010528027.X, i.e. the ceiling temperature of heat pipe circulation work must relatively low could with kind of refrigeration cycle put down
Steady linking.
Chinese utility model patent CN200910105617 and CN200910181213 disclose a kind of band natural cooling
Computer-room air conditioning system, system comprises refrigerated medium pump unit, and natural cooling unit shares set of system with refrigeration unit,
Also known as Integral composite computer-room air conditioning system, although reduce system cost, but system is at refrigeration mode and natural cooling mould
System can be caused to there is high pressure rigid switching during formula switching, damage system, outdoor natural cooling source can not be made full use of simultaneously；For
Middle part, it is short that the time is especially run near area, equator heat pipe in south, and energy-saving efficiency is low.
Utility model patent ZL201210037332.8 and utility model patent ZL201210037082.8 proposes one band
The heat pipe combined computer-room air conditioning system of recombination region, also known as overlapping combined type computer-room air conditioning system, utilizes power type separate heat pipe
System is combined at intermediate condensation vaporizer (evaporation coil) place with vapour compression refrigeration system, and refrigeration system is at conditioning in Transition Season
Save and compensate cold for hot-pipe system, widen hot-pipe system operation temperature area.But utility model patent ZL201210037082.8 exists
Utilize secondary heat exchange mode to provide cold for end under refrigeration mode, reduce cooling system efficiency；And ZL201210037332.8
When refrigeration mode switches with heat pipe pattern both of which, it may appear that system cold output instability, excessive unstable state.
About the computer-room air conditioning system utilizing power type separate heat pipe to couple with vapour compression refrigeration system at present also
Not it has been proposed that, the most not it has been proposed that widen heat pipe operation temperature area at spring, autumn transition season, according to heat pipe condensation deficiency
Locating on-demand refrigeration, the most various patterns switch in outside, and the output of end cold maintains steadily.Two are used for epipodium temperature
Air entry difference evaporating temperature realizes supercool function, it is ensured that under epipodium temperature operating mode, system has the air conditioning system of stable cold output
At present the most not it has been proposed that.
Utility model content
The purpose of this utility model is to provide a kind of photovoltaic to drive combined type computer-room air conditioning system, to solve above-mentioned background
The problem proposed in technology.
For achieving the above object, this utility model provides following technical scheme: a kind of photovoltaic drives combined type air conditioner in machine room
System, including refrigeration unit, heat pipe unit, photovoltaic driver element and three-way valve；Described refrigeration unit includes one or more
Compressor, refrigerant condenser, throttling arrangement and low-pressure oil storage；Described heat pipe unit includes low-pressure oil storage, vaporizer, system
Cryogenic fluid pump and heat pipe condenser；Described refrigeration unit couples at low-pressure oil storage with heat pipe unit；Described photovoltaic
Driver element is used for as air conditioning unit offer photovoltaic electric energy；Described a kind of photovoltaic drives combined type computer-room air conditioning system by control
The temperature of low-pressure oil storage internal refrigeration storage agent processed exports accuracy controlling parameter as system cold；Described compressor has aerofluxus
Mouth and air entry, described low-pressure oil storage includes inlet, supply opening, air inlet and gas returning port；
The air vent of described compressor is connected with the entrance of refrigerant condenser, the outlet of described refrigerant condenser with
The entrance of throttling arrangement is connected, and the outlet of described 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 described low-pressure oil storage enters with refrigerated medium pump
Mouth is connected, and described cold-producing medium delivery side of pump is connected with evaporator inlet, and the exit of described vaporizer arranges threeway
Valve；The air inlet of described low-pressure oil storage and the outlet of heat pipe condenser are by coil pipe parallel communication；
The connection with heat pipe condenser closed by described three-way valve, when opening the connection with low-pressure oil storage and vaporizer,
Described compressor, refrigerant condenser, throttling arrangement, low-pressure oil storage, refrigerated medium pump, vaporizer and three-way valve collectively constitute system
SAPMAC method, provides cold by kind of refrigeration cycle for air conditioning terminal；
The connection with vaporizer and heat pipe condenser opened by described three-way valve, when closing the connection with low-pressure oil storage,
Described compressor, refrigerant condenser, throttling arrangement, low-pressure oil storage, refrigerated medium pump, vaporizer, three-way valve and heat pipe condensation
Device collectively constitutes combined-circulation, and now heat pipe unit is operated at full capacity, and refrigeration unit works in right amount；
The connection with vaporizer and heat pipe condenser opened by described three-way valve, when closing the connection with low-pressure oil storage,
Close compressor, refrigerant condenser and throttling arrangement, described low-pressure oil storage, vaporizer, refrigerated medium pump, three-way valve and heat pipe
Condenser collectively constitutes heat pipe circulation；
Described a kind of photovoltaic drives combined type computer-room air conditioning system also to include temperature control equipment, oil eliminator and gas-liquid
Separator, described temperature control equipment respectively with three-way valve, the heat exchange blower fan of heat pipe condenser and refrigerant condenser and pressure
Contracting machine connects；Described temperature control equipment is used for the ambient temperature outside sensing chamber and low-pressure oil storage internal refrigeration storage agent temperature
Degree, and control three-way valve, heat exchange blower fan and the running status of compressor according to ambient temperature；Wherein, described three-way valve is permissible
Substituted by two valve bodies；
Described a kind of photovoltaic drives combined type computer-room air conditioning system can form many by increasing one or more equipment
Join compound computer-room air conditioning system, constitute closed cycle system by refrigerated medium pump, feed flow house steward and return-air house steward with multiple equipment
System, arranges refrigeration valve and heat pipe valve at the general export of vaporizer；The outlet of described heat pipe valve and heat pipe condenser entrance phase
Connection, the outlet of heat pipe condenser and the outlet of refrigeration valve are all connected to the air inlet of low-pressure oil storage, described vaporizer
Arrival end flow valve is set, on the tube wall of the port of export that the temperature-sensing element of described flow valve is arranged on vaporizer；Described
Flow valve is ratio adjusting valve, by regulating the aperture of flow valve, thus can control the liquid supply rate of vaporizer and outlet thereof
The degree of superheat, it is achieved accurately regulate the flow of air conditioning terminal；
When the photovoltaic electric energy of described photovoltaic driver element supply is more than air conditioning unit required electric energy, unnecessary photovoltaic electric energy
Proceed to electrical network；When the photovoltaic electric energy of described photovoltaic driver element supply is equal to air conditioning unit required electric energy, the most air conditioning unit right
Electrical network does not consume；When the photovoltaic electric energy of described photovoltaic driver element supply is less than air conditioning unit required electric energy, by electrical network electricity
Air conditioning unit required electric energy can be compensated；When the photovoltaic electric energy of described photovoltaic driver element supply is zero, direct by electrical network electric energy
For air conditioning unit power supply.
Preferably, described throttling arrangement includes electric expansion valve or capillary tube.
Preferably, described heat pipe condenser and refrigerant condenser all use parallel-flow heat exchanger or finned heat exchanger,
And in face of wind direction parallel side-by-side.
Preferably, described heat pipe condenser and refrigerant condenser can share a heat exchange blower fan, it is also possible to the most solely
Erect displacement hot-air blower, 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 blower fan, refrigerant condenser is positioned at the air side of heat exchange blower fan.
Preferably, described refrigerated medium pump two ends are parallel with bypass valve, and bypass valve is used for adjusting refrigerant flow rate；Work as refrigeration
Agent pump is variable frequency pump, then bypass valve can be cancelled.
Compared with prior art, the beneficial effects of the utility model are: described a kind of photovoltaic drives combined type machine room empty
Adjusting system controls the switching of three-way valve according to outdoor environment temperature, is separately operable kind of refrigeration cycle, combined-circulation and heat pipe circulation, suitable
The refrigeration demand of round-the-clock air-conditioning for machine room, base station etc., maximally utilizes round the clock, transition season and the natural cooling source in winter；
Described a kind of photovoltaic driving combined type computer-room air conditioning system design compact conformation, reliability are high, energy-conserving and environment-protective, and the thermal efficiency
Height, reliability is high, good stability, and degree of regulation is high；Refrigerated medium pump conveying cold-producing medium is indoor centralized cycle cooling, power cycle
Reliability is high, is not limited by installation site；Heat exchanger structure is compact, it is to avoid heat transfer efficiency is low, heat exchanger area huge asking
Topic, and circular flow is little, and conveying merit is little；Using refrigerated medium pump forced circulation, liquid supply rate is stable, and Flow-rate adjustment is convenient, accurate；
Refrigerated medium pump pressure head most preferably can mate according to feed flow distance, drop and SR, beneficially the accurate control of air-conditioner temperature
System, air conditioning unit employing photovoltaic drives, more energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is systematic schematic diagram of the present utility model；
Fig. 2 is this utility model refrigeration cycle figure；
Fig. 3 is this utility model combined-circulation loop diagram；
Fig. 4 is this utility model heat pipe circulating circuit figure；
Fig. 5 is the multi-joint compound computer-room air conditioning system schematic diagram of this utility model；
Fig. 6 is the refrigeration cycle figure of the multi-joint compound computer-room air conditioning system of this utility model；
Fig. 7 is the combined-circulation loop diagram of the multi-joint compound computer-room air conditioning system of this utility model；
Fig. 8 is the heat pipe circulating circuit figure of the multi-joint compound computer-room air conditioning system of this utility model.
In figure: 1, compressor, 2, refrigerant condenser, 3, throttling arrangement, 4, low-pressure oil storage, 5, vaporizer, 6, cold-producing medium
Pump, 7, three-way valve, 8, heat pipe condenser, 9, photovoltaic driver element.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
Referring to Fig. 1-8, this utility model provides a kind of technical scheme: a kind of photovoltaic drives combined type air conditioner in machine room system
System, including refrigeration unit, heat pipe unit, photovoltaic driver element 9 and three-way valve 7；Refrigeration unit includes one or more compressor
1, refrigerant condenser 2, throttling arrangement 3 and low-pressure oil storage 4；Heat pipe unit includes low-pressure oil storage 4, vaporizer 5, refrigerated medium pump
6 and heat pipe condenser 8；Refrigeration unit couples at low-pressure oil storage 4 with heat pipe unit；Photovoltaic driver element 9 is used for
Air conditioning unit offer photovoltaic electric energy；A kind of photovoltaic drives combined type computer-room air conditioning system by controlling the internal system of low-pressure oil storage 4
The temperature of cryogen exports accuracy controlling parameter as system cold；Compressor 1 has air vent and air entry, low-pressure oil storage 4
Including inlet, supply opening, air inlet and gas returning port；
The air vent of compressor 1 is connected with the entrance of refrigerant condenser 2, the outlet of refrigerant condenser 2 and throttling arrangement 3
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 vaporizer 5 entrance, and the exit of vaporizer 5 arranges three-way valve 7；The air inlet of low-pressure oil storage 4 and heat pipe
The outlet of condenser 8 is by coil pipe parallel communication；
The connection with heat pipe condenser 8 closed by three-way valve 7, when opening the connection with low-pressure oil storage 4 and vaporizer 5, and pressure
Contracting machine 1, refrigerant condenser 2, throttling arrangement 3, low-pressure oil storage 4, refrigerated medium pump 6, vaporizer 5 and three-way valve 7 collectively constitute system
SAPMAC method, provides cold by kind of refrigeration cycle for air conditioning terminal；
Three-way valve 7 is opened and vaporizer 5 and the connection of heat pipe condenser 8, when closing the connection with low-pressure oil storage 4, and pressure
Contracting machine 1, refrigerant condenser 2, throttling arrangement 3, low-pressure oil storage 4, refrigerated medium pump 6, vaporizer 5, three-way valve 7 and heat pipe condenser
8 collectively constitute combined-circulation, and now heat pipe unit is operated at full capacity, and refrigeration unit works in right amount；
Three-way valve 7 is opened and vaporizer 5 and the connection of 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, vaporizer 5, refrigerated medium pump 6, three-way valve 7 and heat pipe
Condenser 8 collectively constitutes heat pipe circulation；
A kind of photovoltaic drives combined type computer-room air conditioning system also to include temperature control equipment, oil eliminator and gas-liquid separation
Device, temperature control equipment connects with heat exchange blower fan and the compressor 1 of refrigerant condenser 2 with three-way valve 7, heat pipe condenser 8 respectively
Connect；Temperature control equipment is used for the ambient temperature outside sensing chamber and low-pressure oil storage 4 internal refrigeration storage agent temperature, and according to environment
Temperature controls three-way valve 7, heat exchange blower fan and the running status of compressor 1；Wherein, three-way valve 7 can be substituted by two valve bodies；
A kind of photovoltaic drives combined type computer-room air conditioning system can form multi-joint compound by increasing one or more equipment
Type computer-room air conditioning system, constitutes closed circulation system by refrigerated medium pump 6, feed flow house steward and return-air house steward with multiple equipment,
Refrigeration valve and heat pipe valve are set at the general export of vaporizer 5；The outlet of heat pipe valve is connected with heat pipe condenser 8 entrance, heat pipe
The outlet of condenser 8 and the outlet of refrigeration valve are all connected to the air inlet of low-pressure oil storage 4, and the arrival end of vaporizer 5 is arranged
Flow valve, on the tube wall of the port of export that the temperature-sensing element of flow valve is arranged on vaporizer 5；Flow valve is ratio adjusting valve, permissible
By regulating the aperture of flow valve, thus control the liquid supply rate of vaporizer 5 and the degree of superheat of outlet thereof, it is achieved accurately regulate air-conditioning
The flow of end；
When the photovoltaic electric energy of photovoltaic driver element 9 supply is more than air conditioning unit required electric energy, unnecessary photovoltaic electric energy proceeds to
Electrical network；When the photovoltaic electric energy of photovoltaic driver element 9 supply is equal to air conditioning unit required electric energy, the most air conditioning unit electrical network is not disappeared
Consumption；When the photovoltaic electric energy of photovoltaic driver element 9 supply is less than air conditioning unit required electric energy, by the air conditioning unit institute of electrical network power compensation
Need electric energy；When the photovoltaic electric energy of photovoltaic driver element 9 supply is zero, electrical network electric energy it it is directly air conditioning unit power supply.
Throttling arrangement 3 includes electric expansion valve or capillary tube；Heat pipe condenser 8 and refrigerant condenser 2 all 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, it is also possible to independently arrange 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 is positioned at the inlet air side of heat exchange blower fan, and refrigerant condenser 2 is positioned at the air side of heat exchange blower fan；Refrigerated medium pump
6 two ends are parallel with bypass valve, and bypass valve is used for adjusting refrigerant flow rate；When refrigerated medium pump 6 is variable frequency pump, then bypass valve can take
Disappear.
Embodiment 1:
Summer when, when the photovoltaic electric energy of photovoltaic driver element 9 supply is more than air conditioning unit required electric energy, unnecessary
Photovoltaic electric energy proceed to electrical network.When outdoor environment temperature T is 33 DEG C, when being 25 DEG C higher than preset temperature Tb, temperature control equipment
Controlling three-way valve 7 and be switched to kind of refrigeration cycle, now compressor 1 is opened, heat exchange blower fan full speed running, then cold-producing medium is at a kind of photovoltaic
The circulation path in combined type computer-room air conditioning system is driven to be: from compressor 1 to refrigerant condenser 2, then to throttling arrangement 3 and low
Pressure reservoir 4, then from low-pressure oil storage 4 to compressor 1 and refrigerated medium pump 6, cold-producing medium again from refrigerated medium pump 6 to vaporizer 5, then
Sequentially pass through three-way valve 7, low-pressure oil storage 4 and refrigerated medium pump 6；Owing to outdoor environment temperature T is high so that a kind of photovoltaic drives multiple
The thermic load amount of box-like computer-room air conditioning system is relatively big, so temperature control equipment controls a kind of photovoltaic and drives combined type air conditioner in machine room
System produces while cold, by refrigerated medium pump 6 transportation power effect so that a kind of photovoltaic drives combined type air conditioner in machine room system
System oil returns etc. are safe and reliable；A kind of photovoltaic driving combined type 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 meets
T1-Δ T≤T0≤T1+ Δ T, wherein:
The temperature of T1: low-pressure oil storage 4 internal refrigeration storage agent；
The temperature of Δ T: low-pressure oil storage 4 internal refrigeration storage agent and the allowable error value of design temperature, be set to Δ T=2 DEG C；
The design temperature of T0: low-pressure oil storage 4 internal refrigeration storage agent, is set to 16 DEG C；
Quantity or the aperture of rotating speed and throttling arrangement 3 that then maintenance compressor 1 runs are 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, tuning up the aperture of throttling arrangement 3；Work as low pressure
Reservoir 4 internal refrigeration storage agent temperature meets
T0 ＞ T1+ Δ T,
Then promote compressor 1 rotating speed or increase the quantity that compressor 1 runs, reducing the aperture of throttling arrangement 3.
Embodiment 2:
Spring or autumn when, when the photovoltaic electric energy of photovoltaic driver element 9 supply is equal to air conditioning unit required electricity
Can time, the most air conditioning unit electrical network is not consumed.When outdoor environment temperature T is 18 DEG C, it is 15 DEG C higher than design temperature Ta, is less than
In the case of preset temperature Tb is 25 DEG C, temperature control equipment controls three-way valve 7 and is switched to combined-circulation, and now compressor 1 is opened
Open, heat exchange blower fan full speed running, then cold-producing medium circulation path in a kind of photovoltaic drives combined type computer-room air conditioning system is: from
Compressor 1 is to refrigerant condenser 2, then arrives throttling arrangement 3 and low-pressure oil storage 4, then from low-pressure oil storage 4 to compressor 1 and system
Cryogenic fluid pump 6, cold-producing medium again from refrigerated medium pump 6 to vaporizer 5, then sequentially pass through three-way valve 7, heat pipe condenser 8, low-pressure oil storage
4 and refrigerated medium pump 6；Owing to outdoor environment temperature T is relatively low, so temperature control equipment controls a kind of photovoltaic and drives combined type machine room
While air conditioning system preferentially makes heat pipe unit heat radiation, insufficient section is compensated by kind of refrigeration cycle；According to law of conservation of energy, second
Plant in control mode and first pass through heat pipe condenser 8 carry out from the gaseous state of indoor evaporator 5 outflow or the cold-producing medium of gas-liquid mixed state
Cooling, the gaseous refrigerant not being condensed is sucked by compressor 1 and is compressed kind of refrigeration cycle realization condensation, thus meeting one
On the premise of kind of photovoltaic drives the cold output of combined type computer-room air conditioning system to adapt with thermic load, reduce a kind of photovoltaic and drive
Dynamic combined type computer-room air conditioning system is because producing the power that cold is consumed, and then it is empty to achieve a kind of photovoltaic driving combined type machine room
The energy-saving and emission-reduction of adjusting system, simultaneously by refrigerated medium pump 6 transportation power effect so that a kind of photovoltaic drives combined type air conditioner in machine room
System oil returns etc. are safe and reliable；
A kind of photovoltaic drive combined type computer-room air conditioning system in the case of combined-circulation, according to concrete load start one or
Multiple compressors 1, or regulation compressor 1 running frequency, it is achieved the accurate regulation of cold output, control heat pipe condenser 8
The refrigeratory capacity that exchange capability of heat and heat exchange rotation speed of fan make heat pipe circulate matches with end thermic load；A kind of photovoltaic drives combined type
Computer-room air conditioning system, in the case of combined-circulation, preferentially utilizes heat pipe condenser 8 to provide cold, and the part of not enough cold is by control
The operation number of units of compressor 1 processed or the rotating speed of compressor 1 compensate；The control mode of compound-refrigerating circulation is: when outdoor has
Compressor 1 runs, then the heat exchange blower fan high-speed cruising of all outdoor combined refrigeration systems in air conditioning system, first at heat pipe cold
Heat release in condenser 8, uncooled gaseous refrigerant is sucked by compressor 1, by compression condensation-joint after entering low-pressure oil storage 4
Stream flows into low-pressure oil storage 4 again；The regulative mode of compound-refrigerating circulation is: when low-pressure oil storage 4 internal refrigeration storage agent temperature meets
T1-Δ T≤T0≤T1+ Δ T, wherein:
The temperature of T1: low-pressure oil storage 4 internal refrigeration storage agent；
The temperature of Δ T: low-pressure oil storage 4 internal refrigeration storage agent and the allowable error value of design temperature, be set to Δ T=2 DEG C；
The design temperature of T0: low-pressure oil storage 4 internal refrigeration storage agent, is set to 16 DEG C；
Then compressor 1 is maintained to run the aperture of quantity or rotating speed and throttling arrangement 3 constant；When the internal system of low-pressure oil storage 4
Refrigerant temperature meets
T0 ＜ T1-Δ T,
Then reduce compressor 1 rotating speed or minimizing compressor 1 runs quantity, tune up throttling arrangement 3 aperture；Work as low-pressure oil storage
4 internal refrigeration storage agent temperature meet
T0 ＞ T1+ Δ T,
Then promote compressor 1 rotating speed or increase compressor 1 runs quantity, reduce throttling arrangement 3 aperture.
Embodiment 3:
Winter when, when the photovoltaic electric energy of photovoltaic driver element 9 supply is less than air conditioning unit required electric energy, by electricity
The air conditioning unit required electric energy of net power compensation.When outdoor environment temperature T is 6 DEG C, less than the feelings that design temperature Ta is 15 degrees Celsius
Under condition, temperature control equipment controls three-way valve 7 and is switched to heat pipe circulation, and now compressor 1 is closed, heat exchange blower fan full speed or speed governing
Run, then the circulation path in a kind of photovoltaic drives combined type computer-room air conditioning system of cold-producing medium is: from refrigerated medium pump 6 to steaming
Send out device 5, then sequentially pass through three-way valve 7, heat pipe condenser 8, low-pressure oil storage 4 and refrigerated medium pump 6；Due to outdoor environment temperature T
Far below computer room temperature, and can to machine room provide sufficient cold so that maintaining suitable temperature in machine room, therefore the third control
Mode processed make the cold-producing medium of gaseous state or the gas-liquid mixed state flowed out from indoor evaporator 5 at heat pipe condenser 8 and outdoor environment
In low-temperature receiver carry out heat exchange, to reduce the temperature of cold-producing medium, and make the cold-producing medium after cooling be again introduced in indoor evaporator 5
Machine room is lowered the temperature, thus meeting in machine room on the premise of refrigeration demand, a kind of photovoltaic is greatly reduced and drives multiple
The energy consumption of box-like computer-room air conditioning system；A kind of photovoltaic drives combined type computer-room air conditioning system under heat pipe loop condition, it is possible to logical
The flow crossing the rotating speed or cold-producing medium that adjust heat exchange blower fan realizes cold output regulation, controls the heat-energy transducer of heat pipe condenser 8
The refrigeratory capacity that power and heat exchange rotation speed of fan make heat pipe circulate matches with end thermic load；When low-pressure oil storage 4 internal refrigeration storage agent
Temperature meets
T1-Δ T≤T0≤T1+ Δ T, wherein:
The temperature of T1: low-pressure oil storage 4 internal refrigeration storage agent；
The temperature of Δ T: low-pressure oil storage 4 internal refrigeration storage agent and the allowable error value of design temperature, be set to Δ T=2 DEG C；
The design temperature of T0: low-pressure oil storage 4 internal refrigeration storage agent, is set to 16 DEG C；
Then maintain heat exchange rotation speed of fan and refrigerated medium pump 6 flow constant；When low-pressure oil storage 4 internal refrigeration storage agent temperature meets
T0 ＜ T1-Δ T,
Then preferentially reduce cold output by reduction heat exchange rotation speed of fan or regulation flow valve aperture reduces refrigerated medium pump 6
Flow exports, and when needs continue to reduce, then cuts off one of them heat exchange blower fan；When low-pressure oil storage 4 internal refrigeration storage agent temperature is full
Foot
T0 ＞ T1+ Δ T,
Then first pass through lifting heat exchange rotation speed of fan increase cold output or regulation flow valve aperture improves refrigerated medium pump 6 and flows
Amount output.
The above, only this utility model preferably detailed description of the invention, but protection domain of the present utility model is not
Being confined to this, any those familiar with the art is in the technical scope that this utility model discloses, according to this practicality
Equivalent or change in addition is conceived in novel technical scheme and improvement thereof, all should contain at protection domain of the present utility model
In.
Claims (5)
1. a photovoltaic drives combined type computer-room air conditioning system, it is characterised in that: include that refrigeration unit, heat pipe unit, photovoltaic drive
Moving cell (9) and three-way valve (7)；Described refrigeration unit includes one or more compressor (1), refrigerant condenser (2), throttling
Device (3) and low-pressure oil storage (4)；Described heat pipe unit includes low-pressure oil storage (4), vaporizer (5), refrigerated medium pump (6)
With heat pipe condenser (8)；Described refrigeration unit couples at low-pressure oil storage (4) place with heat pipe unit；Described photovoltaic
Driver element (9) is used for as air conditioning unit offer photovoltaic electric energy；Described a kind of photovoltaic drives combined type computer-room air conditioning system to lead to
The temperature crossing control low-pressure oil storage (4) internal refrigeration storage agent exports accuracy controlling parameter as system cold；Described compressor
(1) having air vent and air entry, described low-pressure oil storage (4) includes inlet, supply opening, air inlet and gas returning port；
The air vent of described compressor (1) is connected with the entrance of refrigerant condenser (2), described refrigerant condenser (2)
Outlet is connected with the entrance of throttling arrangement (3), the outlet of described throttling arrangement (3) and the inlet of low-pressure oil storage (4)
Being connected, the gas returning port of described low-pressure oil storage (4) is connected with the air entry of compressor (1)；Described low-pressure oil storage
(4) supply opening is connected with the entrance of refrigerated medium pump (6), the outlet of described refrigerated medium pump (6) and vaporizer (5) entrance phase
Connection, the exit of described vaporizer (5) arranges three-way valve (7)；The air inlet of described low-pressure oil storage (4) and heat pipe cold
The outlet of condenser (8) is by coil pipe parallel communication；
The connection with heat pipe condenser (8) closed by described three-way valve (7), opens and low-pressure oil storage (4) and vaporizer (5)
During connection, described compressor (1), refrigerant condenser (2), throttling arrangement (3), low-pressure oil storage (4), refrigerated medium pump (6), steam
Send out device (5) and three-way valve (7) collectively constitutes kind of refrigeration cycle, provide cold by kind of refrigeration cycle for air conditioning terminal；
Described three-way valve (7) is opened and vaporizer (5) and the connection of heat pipe condenser (8), closes and low-pressure oil storage (4)
During connection, described compressor (1), refrigerant condenser (2), throttling arrangement (3), low-pressure oil storage (4), refrigerated medium pump (6), steam
Sending out device (5), three-way valve (7) and heat pipe condenser (8) and collectively constitute combined-circulation, now heat pipe unit is operated at full capacity, refrigeration
Unit works in right amount；
Described three-way valve (7) is opened and vaporizer (5) and the connection of heat pipe condenser (8), closes and low-pressure oil storage (4)
During connection, close compressor (1), refrigerant condenser (2) and throttling arrangement (3), described low-pressure oil storage (4), vaporizer
(5), refrigerated medium pump (6), three-way valve (7) and heat pipe condenser (8) collectively constitute heat pipe circulation；
Described a kind of photovoltaic drives combined type computer-room air conditioning system also to include temperature control equipment, oil eliminator and gas-liquid separation
Device, described temperature control equipment respectively with three-way valve (7), heat pipe condenser (8) and refrigerant condenser (2) heat exchange blower fan with
And compressor (1) connects；Described temperature control equipment is used for the ambient temperature outside sensing chamber and low-pressure oil storage (4) is internal
Refrigerant temperature, and control three-way valve (7), heat exchange blower fan and the running status of compressor (1) according to ambient temperature；Wherein, institute
The three-way valve (7) stated can be substituted by two valve bodies；
Described a kind of photovoltaic drives combined type computer-room air conditioning system can form multi-joint multiple by increasing one or more equipment
Mould assembly computer-room air conditioning system, constitutes closed cycle system by refrigerated medium pump (6), feed flow house steward and return-air house steward with multiple equipment
System, arranges refrigeration valve and heat pipe valve at the general export of vaporizer (5)；The outlet of described heat pipe valve and heat pipe condenser (8)
Entrance is connected, and the outlet of heat pipe condenser (8) and the outlet of refrigeration valve are all connected to the air inlet of low-pressure oil storage (4),
The arrival end of described vaporizer (5) arranges flow valve, and the temperature-sensing element of described flow valve is arranged on the outlet of vaporizer (5)
On the tube wall of end；Described flow valve is ratio adjusting valve, by regulating the aperture of flow valve, thus can control vaporizer
(5) liquid supply rate and the degree of superheat of outlet thereof, it is achieved accurately regulate the flow of air conditioning terminal；
When the photovoltaic electric energy that described photovoltaic driver element (9) supplies is more than air conditioning unit required electric energy, unnecessary photovoltaic electric energy
Proceed to electrical network；When the photovoltaic electric energy that described photovoltaic driver element (9) supplies is equal to air conditioning unit required electric energy, the most air conditioning unit
Electrical network is not consumed；When the photovoltaic electric energy that described photovoltaic driver element (9) supplies is less than air conditioning unit required electric energy, by electricity
The air conditioning unit required electric energy of net power compensation；When the photovoltaic electric energy that described photovoltaic driver element (9) supplies is zero, by electrical network electricity
Can be directly air conditioning unit power supply.
A kind of photovoltaic the most according to claim 1 drives combined type computer-room air conditioning system, it is characterised in that: described throttling
Device (3) includes electric expansion valve or capillary tube.
A kind of photovoltaic the most according to claim 1 drives combined type computer-room air conditioning system, it is characterised in that: described heat pipe
Condenser (8) and refrigerant condenser (2) all use parallel-flow heat exchanger or finned heat exchanger, and in face of wind direction parallel side-by-side.
A kind of photovoltaic the most according to claim 3 drives combined type computer-room air conditioning system, it is characterised in that: described heat pipe
Condenser (8) and refrigerant condenser (2) can share a heat exchange blower fan, it is also possible to independently arrange heat exchange blower fan, work as heat
Pipework condensation device (8) and refrigerant condenser (2) share a heat exchange blower fan, then heat exchange of heat pipe (8) is positioned at the inlet air of heat exchange blower fan
Side, refrigerant condenser (2) is positioned at the air side of heat exchange blower fan.
A kind of photovoltaic the most according to claim 1 drives combined type computer-room air conditioning system, it is characterised in that: described refrigeration
Agent pump (6) two ends are parallel with bypass valve, and bypass valve is used for adjusting refrigerant flow rate；When refrigerated medium pump (6) is variable frequency pump, then bypass
Valve can be cancelled.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620579369.7U CN205690576U (en) | 2016-06-14 | 2016-06-14 | A kind of photovoltaic drives combined type computer-room air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620579369.7U CN205690576U (en) | 2016-06-14 | 2016-06-14 | A kind of photovoltaic drives combined type computer-room air conditioning system |
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| CN205690576U true CN205690576U (en) | 2016-11-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839547A (en) * | 2017-03-16 | 2017-06-13 | 珠海格力电器股份有限公司 | Grid-connected photovoltaic air-conditioning heat dissipation system |
| CN109869941A (en) * | 2018-12-17 | 2019-06-11 | 珠海格力电器股份有限公司 | Heat pump system, suction superheat and gas-liquid separator hydrops evaporation control method |
| US11739992B2 (en) | 2021-03-03 | 2023-08-29 | Kuwait University | Air conditioning system with solar-powered subcooling system |
-
2016
- 2016-06-14 CN CN201620579369.7U patent/CN205690576U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839547A (en) * | 2017-03-16 | 2017-06-13 | 珠海格力电器股份有限公司 | Grid-connected photovoltaic air-conditioning heat dissipation system |
| CN109869941A (en) * | 2018-12-17 | 2019-06-11 | 珠海格力电器股份有限公司 | Heat pump system, suction superheat and gas-liquid separator hydrops evaporation control method |
| CN109869941B (en) * | 2018-12-17 | 2020-03-10 | 珠海格力电器股份有限公司 | Heat pump system, air suction superheat degree and vapor-liquid separator accumulated liquid evaporation control method |
| US11739992B2 (en) | 2021-03-03 | 2023-08-29 | Kuwait University | Air conditioning system with solar-powered subcooling system |
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