CN106679021A - Air conditioner system in machine room and control method of air conditioner system - Google Patents

Air conditioner system in machine room and control method of air conditioner system Download PDF

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Publication number
CN106679021A
CN106679021A CN201611140318.5A CN201611140318A CN106679021A CN 106679021 A CN106679021 A CN 106679021A CN 201611140318 A CN201611140318 A CN 201611140318A CN 106679021 A CN106679021 A CN 106679021A
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CN
China
Prior art keywords
valve
temperature
outlet
compressor
condenser
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611140318.5A
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Chinese (zh)
Inventor
文礼朝
王飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, Guangdong Midea HVAC Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201611140318.5A priority Critical patent/CN106679021A/en
Publication of CN106679021A publication Critical patent/CN106679021A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001Compression cycle type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0046Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00Compression machines, plants or systems with non-reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/22Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/208Liquid cooling with phase change
    • H05K7/20827Liquid cooling with phase change within rooms for removing heat from cabinets, e.g. air conditioning devices

Abstract

The invention discloses an air conditioner system in a machine room and a control method of the air conditioner system. The air conditioner system in the machine room comprises a compressor, a refrigerating condenser, a first throttling device, an evaporator and a first on-off valve which are sequentially connected end to end, as well as a condensing evaporator, a heat pipe condenser, a liquid storage device and a fluoride pump, wherein the inlet of an evaporation-side channel in the condensing evaporator is connected between the refrigerating condenser and the first throttling device through a second throttling device, and the outlet of the evaporation-side channel in the condensing evaporator is connected between the compressor and the first on-off valve; the inlet of the heat pipe condenser is connected between the evaporator and the first on-off valve through a second on-off valve, and the outlet of the heat pipe condenser is connected with the inlet of a condensing-side channel; the inlet of the liquid storage device is connected with the outlet of the condensing-side channel; and the inlet of the fluoride pump is connected with the outlet of the liquid storage device, and the outlet of the fluoride pump is connected between the first throttling device and the evaporator. According to the embodiment, the air conditioner system in the machine room is energy-saving and is low in running cost.

Description

Computer-room air conditioning system and its control method
Technical field
The present invention relates to refrigeration technology field, more particularly, to the control of a kind of computer-room air conditioning system and computer-room air conditioning system Method.
Background technology
With information industry digital Construction and the intelligentized fast development of household electrical appliances, machine room, the quantity of base station increase rapidly Plus, according to statistics machine room, the energy consumption of base station air conditioner account for more than the 40% of its total energy consumption.Data center's sensible heat load is big, building enclosure Closing, round-the-clock running throughout the year, indoors, less than the season of outside temperature, conventional air conditioning system is still for side design temperature Need to continue to run with compression-type refrigerating system, refrigeration system inefficiency but also there is cold-starting, lubrication, energy adjustment etc. Integrity problem.
Using indoor/outdoor temperature-difference low cost conveying heat or the method for for indoor providing cold obtained in the industry scholar with The concern of engineers and technicians, and launch engineering and technological research in different forms, the VMC (Ventilation Mechanical Control System) for such as adopting at present, but it is this Device is due to cannot ensure indoor air quality, it is impossible to prevents dust, moisture of outdoor etc. and gets in, easily to electricity such as servers Sub- equipment causes damage.Although common gas-gas heat-exchange system ensure that the quality of room air, but big for thermic load For the machine room having high demands with temperature uniformity, huge heat exchange area is needed to overcome airair heat exchanger heat transfer efficiency low The drawbacks of.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.For this purpose, the present invention is carried Go out a kind of computer-room air conditioning system, the computer-room air conditioning system energy-conservation and operating cost is low.
The present invention also proposes a kind of control method of computer-room air conditioning system.
Computer-room air conditioning system according to embodiments of the present invention includes:Compressor that head and the tail are sequentially connected, refrigerant condenser, the One throttling arrangement, vaporizer, the first on-off valve, the selectable pipeline for turning on and blocking its place of first on-off valve;It is cold Solidifying vaporizer, limits the condensation wing passage and evaporation wing passage being spaced apart from each other, the evaporation side in the condenser/evaporator The import of passage is connected between the refrigerant condenser and the first throttle device by second throttling device, the evaporation The outlet of wing passage is connected between the compressor and first on-off valve;Heat pipe condenser, the heat pipe condenser Import is connected between the vaporizer and first on-off valve by the second on-off valve, the outlet of the heat pipe condenser with The import of the condensation wing passage is connected, the selectable pipeline for turning on and blocking its place of second on-off valve;Liquid storage is filled Put, the import of the device for storing liquid is connected with the outlet of the condensation wing passage;Fluorine pump, import and the liquid storage of the fluorine pump The outlet of device is connected, and the outlet of the fluorine pump is connected between the first throttle device and the vaporizer;Wherein, it is described Refrigerant condenser it is selectable with the first throttle device and the second throttling device in a conducting and and another Block.
Computer-room air conditioning system according to embodiments of the present invention is after ambient temperature reaches certain temperature range, it is possible to use fortune Row heat pipe unit is compensated to kind of refrigeration cycle, compressor can be avoided to be always on and be caused energy waste.Therefore according to this The computer-room air conditioning system energy-conservation of inventive embodiments and operating cost is low.
In some preferred embodiments, the computer-room air conditioning system also includes three-way valve, and the three-way valve has the first valve Mouth, the second valve port and the 3rd valve port, first valve port is connected with the refrigerant condenser, second valve port and described first Throttling arrangement is connected, and the 3rd valve port is connected with the second throttling device, wherein first valve port is selectable and the One in two valve ports and the 3rd valve port turns on and blocks with another.
In some preferred embodiments, the computer-room air conditioning system also includes:3rd on-off valve, the 3rd on-off valve string It is associated between the refrigerant condenser and the first throttle device, the 3rd on-off valve is selectable to turn on and block its institute Pipeline;4th on-off valve, the 4th on-off valve is connected between the refrigerant condenser and the second throttling device, The selectable pipeline for turning on and blocking its place of 4th on-off valve.
In some preferred embodiments, the computer-room air conditioning system also includes check valve, the import of the check valve and institute The outlet for stating fluorine pump is connected, and the outlet of the check valve is connected between the first throttle device and the vaporizer.
According to a second aspect of the present invention the control method of the computer-room air conditioning system of embodiment, comprises the steps:
When outdoor environment temperature T and the first temperature Tb meet T > Tb, control the compressor start and the fluorine pump stops Machine, controls the refrigerant condenser and turns on the first throttle device and block with second throttling device, control described first On-off valve is turned on and the second on-off valve is blocked;
When outdoor environment temperature T and second temperature Ta meet T < Ta, control the compressor shutdown and the fluorine pump is opened It is dynamic, control the second on-off valve conducting;
When outdoor environment temperature T meets Ta≤T≤Tb with first temperature Tb and second temperature Ta, institute is controlled After stating fluorine pump operation Preset Time S, closed according to the comparison between outlet temperature Tz and indoor design temperature Ts of the vaporizer System determines whether to start the compressor, wherein Tb > Ta.
The control method of computer-room air conditioning system according to embodiments of the present invention is simple, can greatly energy saving.
In some preferred embodiments, when outlet temperature Tz of the vaporizer meets Tz with the indoor design temperature Ts > Ts, control the compressor start and control the refrigerant condenser to turn on the second throttling device and with described first Throttling arrangement is blocked;When outlet temperature Tz of the vaporizer meets Tz≤Ts with the indoor design temperature Ts, control is described Compressor is remained shut off.
The additional aspect and advantage of the present invention will be set forth in part in the description, and partly will become from the following description Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from the description with reference to accompanying drawings below to embodiment It is substantially and easy to understand, wherein:
Fig. 1 is the schematic diagram of computer-room air conditioning system according to embodiments of the present invention;
Fig. 2 is the operation logic figure of computer-room air conditioning system shown in Fig. 1 when refrigeration mode is run;
Fig. 3 is that the computer-room air conditioning system shown in Fig. 1 is running operation logic figure when freezing compensation model;
Fig. 4 is the operation logic figure of computer-room air conditioning system shown in Fig. 1 when heat-pipe refrigerating pattern is run.
Description of reference numerals:
Computer-room air conditioning system 100;
Compressor 1;Air vent 11;Gas returning port 12;
Refrigerant condenser 2;The import 21 of refrigerant condenser 2;The outlet 22 of refrigerant condenser 2;
First throttle device 31;The import 311 of first throttle device 31;The outlet 312 of first throttle device 31;Second section Stream device 32;The import 321 of second throttling device 32;The outlet 322 of second throttling device 32;
Vaporizer 4;The import 41 of vaporizer 4;The outlet 42 of vaporizer 4;
First on-off valve 51;Second on-off valve 52;
Condenser/evaporator 6;Condensation wing passage 61;The import 611 of condensation wing passage 61;The outlet 612 of condensation wing passage 61; Evaporation wing passage 62;The import 621 of evaporation wing passage 62;The outlet 622 of evaporation wing passage 62;
Heat pipe condenser 7;The import 71 of heat pipe condenser 7;The outlet 72 of heat pipe condenser 7;
Device for storing liquid 8;The import 81 of device for storing liquid 8;The outlet 82 of device for storing liquid 8;
Fluorine pump 9;The import 91 of fluorine pump 9;The outlet 92 of fluorine pump 9;
Three-way valve 10;First valve port 101;Second valve port 102;3rd valve port 103;
Check valve 20;The import 201 of check valve 20;The outlet 202 of check valve 20.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " on ", D score, "front", "rear", "left", "right", " top ", The orientation or position relationship of the instruction such as " bottom ", " interior ", " outward " is based on orientation shown in the drawings or position relationship, merely to just In description the present invention and simplify description, rather than indicate or imply indication device or element must have specific orientation, with Specific azimuth configuration and operation, therefore be not considered as limiting the invention.Additionally, term " first ", " second " are only used In description purpose, and it is not intended that indicating or implying relative importance or the implicit number for indicating indicated technical characteristic Amount.Thus, " first " is defined, one or more this feature can be expressed or be implicitly included to the feature of " second ". In describing the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected;Can Being to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two element internals connection or two elements Interaction relationship.For the ordinary skill in the art, can as the case may be understand above-mentioned term at this Concrete meaning in bright.
The characteristics of computer-room air conditioning system has round-the-clock running throughout the year, therefore the energy-conservation of computer-room air conditioning system is technology The research direction that personnel constantly explore.For this purpose, applicant is through the research to computer-room air conditioning system, draw according to present invention enforcement The computer-room air conditioning system of example.
Firstly the need of explanation, computer-room air conditioning system 100 according to embodiments of the present invention has three kinds of mode of operations:System Chill formula, refrigeration compensation model and heat-pipe refrigerating pattern.The service condition of three kinds of mode of operations and outdoor environment temperature and machine room Interior temperature relation is relevant.First below computer-room air conditioning system 100 according to embodiments of the present invention is described with reference to Fig. 1-Fig. 4.
As shown in figure 1, computer-room air conditioning system 100 according to embodiments of the present invention includes:Compressor 1, refrigerant condenser 2, First throttle device 31, vaporizer 4, the first on-off valve 51, condenser/evaporator 6, heat pipe condenser 7, device for storing liquid 8 and fluorine pump 9.
Wherein, compressor 1, refrigerant condenser 2, first throttle device 31, the head and the tail of 4 and first on-off valve of vaporizer 51 are successively Be connected the circulating path that carried out during constituting refrigeration mode, wherein, the selectable conducting of the first on-off valve 51 and block its institute Pipeline.
Specifically, as depicted in figs. 1 and 2, compressor 1 has air vent 11 and gas returning port 12, and air vent 11 is cold with refrigeration The import 21 of condenser 2 is connected, and the outlet 22 of refrigerant condenser 2 is connected with the import 311 of first throttle device 31, first throttle dress Put 31 outlet 312 to be connected with the import 41 of vaporizer 4, connect between the outlet 42 of vaporizer 4 and the gas returning port 12 of compressor 1 First on-off valve 51, the first on-off valve 51 can turn on vaporizer 4 and compressor 1 with selectivity, i.e., when the first on-off valve 51 is turned on When, coolant can flow to compressor 1 from vaporizer 4, and the first on-off valve 51 can also block vaporizer 4 and compressor 1, i.e., when When one on-off valve 51 is closed, coolant cannot flow to compressor 1 from vaporizer 4.
When outdoor environment temperature is higher, it is impossible to when being lowered the temperature to machine room using outdoor ambient temperature, the present invention is real Applying the computer-room air conditioning system 100 of example carries out kind of refrigeration cycle, and the mode of refrigerant circulation is as follows:Coolant is from the row of 1 air vent of compressor 11 Outlet is flowed to and condensed in refrigerant condenser 2, and condensed coolant enters into steaming Jing after the blood pressure lowering of first throttle device 31 throttling Send out in device 4 and be evaporated, so as to lower the temperature to the air in machine room, the coolant from after the discharge of vaporizer 4 is in the first on-off valve The gas returning port 12 of compressor 1 is flowed back to during 51 conducting, kind of refrigeration cycle is so constituted.
Further, the condensation wing passage 61 and evaporation wing passage 62 being spaced apart from each other is limited in condenser/evaporator 6, is steamed The import 621 for sending out wing passage 62 is connected between refrigerant condenser 2 and first throttle device 31 by second throttling device, is evaporated The outlet 622 of wing passage 62 is connected between the on-off valve 51 of compressor 1 and first.The import 81 of device for storing liquid 8 is led to condensation side The outlet 612 in road 61 is connected, and the import 91 of fluorine pump 9 is connected with the outlet 82 of device for storing liquid 8, and the outlet 92 of fluorine pump 9 is connected to the Between one throttling arrangement 31 and vaporizer 4, the import 71 of heat pipe condenser 7 is connected to the He of vaporizer 4 by the second on-off valve 52 Between first on-off valve 51, the outlet 72 of heat pipe condenser 7 is connected with the import 611 of condensation wing passage 61, wherein, the second break-make The selectable pipeline for turning on and blocking its place of valve 52.Refrigerant condenser 2 is selectable with first throttle device 31 and second One in throttling arrangement turns on and blocks with another.
Specifically, the condensation wing passage 61 in condenser/evaporator 6 and evaporation wing passage 62 are available for coolant flowing, and The coolant of flowing can be exchanged heat each other with the coolant of the flowing in evaporation wing passage 62 in condensation wing passage 61.
When outdoor environment temperature is less than to a certain degree, it is possible to use the environment of outdoor relatively low temperature rises to the refrigeration of machine room To the effect of compensation refrigeration, computer-room air conditioning system 100 now of the invention carries out freeze compensation model or heat-pipe refrigerating pattern.
When computer-room air conditioning system 100 carries out freezing compensation model and heat-pipe refrigerating pattern, need to start fluorine pump 9, in fluorine Under the driving of pump 9, the coolant in device for storing liquid 8 flows out and enters into Jing after fluorine pump 9 in vaporizer 4, such that it is able to machine room Indoor environment is lowered the temperature, and then the second on-off valves of coolant Jing 52 are entered in heat pipe condenser 7, and heat pipe condenser 7 is arranged on In outdoor environment, the coolant being flowed in heat pipe condenser 7 discharges heat in the environment of outdoor relatively low temperature, cold so as to carry out Solidifying, then coolant is continued towards in the condensation wing passage 61 of condenser/evaporator 6, and after discharging from condensation wing passage 61 liquid storage dress is flowed back to 8 are put, so circulation.
If now outdoor environment temperature is sufficiently low, when heat pipe condenser 7 obtains enough colds from outdoor environment, steam The design temperature that the temperature of outlet 42 of device 4 can reach in machine room room is sent out, heat pipe unit is now run merely and has been met machine room Refrigeration demand, without the need for making refrigeration unit participate in operation, this operational mode is referred to as heat-pipe refrigerating pattern.
If now outdoor environment temperature be not reaching to meet computer-room air conditioning system 100 merely operation heat pipe unit when, That is the temperature of the now outlet of vaporizer 4 is not up to the design temperature in machine room room, illustrates simple operation heat pipe unit now The refrigeration demand of machine room cannot be met, need to start compressor 1, the coolant discharged by the air vent 11 of compressor 1 enters into the Two throttling arrangements carry out blood pressure lowering throttling, then enter into the evaporation wing passage 62 of condenser/evaporator 6, in condensation wing passage 61 Coolant is exchanged heat, and the coolant condensed in wing passage 61 is condensed, and the coolant evaporated in wing passage 62 is evaporated.Thus exist During intermediate state of the outdoor environment temperature in high temperature and low temperature, computer-room air conditioning system 100 needs the kind of refrigeration cycle of compressor 1, Simultaneously fluorine pump 9 can be opened to compensate the kind of refrigeration cycle of compressor 1, now compressor 1 can not need full load to run.
Thus according to the embodiment of the present invention computer-room air conditioning system 100 after ambient temperature reaches certain temperature range, can To compensate to kind of refrigeration cycle using operation heat pipe unit, compressor 1 can be avoided from being always on and cause energy waste.Cause This energy-conservation of computer-room air conditioning system 100 according to embodiments of the present invention and operating cost is low.
In some embodiments of the invention, as shown in figure 1, computer-room air conditioning system 100 also includes three-way valve 10, three-way valve 10 have the first valve port 101, the second valve port 102 and the 3rd valve port 103, and the first valve port 101 is connected with refrigerant condenser 2, specifically Ground, the first valve port 101 is connected with the outlet 22 of refrigerant condenser 2, and the second valve port 102 is connected with first throttle device 31, specifically Ground, the second valve port 102 is connected with the import 311 of first throttle device 31, and the 3rd valve port 103 is connected with second throttling device, tool Body ground, the 3rd valve port 103 is connected with the import of second throttling device, wherein selectable and the second valve port 102 of the first valve port 101 Block with a conducting in the 3rd valve port 103 and with another.By arranging three-way valve 10, such that it is able to realize refrigeration condensation Conducting between device 2 and first throttle device 31 and block, and realize leading between refrigerant condenser 2 and second throttling device Lead to and block, system structure is simple, control method is easy.
Certainly the present invention is not limited to this, alternatively, in the computer-room air conditioning system 100 of the embodiment of the present invention, it is possible to use 3rd on-off valve (not shown) and the above-mentioned three-way valve 10 of (not shown) replacement of the 4th on-off valve.Specifically, the 3rd on-off valve It is connected between refrigerant condenser 2 and first throttle device 31, the selectable pipe for turning on and blocking its place of the 3rd on-off valve Road, the 4th on-off valve is connected between refrigerant condenser 2 and second throttling device, and the 4th on-off valve is selectable to be turned on and block Its pipeline being located.When needing to make refrigeration condenser turn on first throttle device 31, the 3rd on-off valve of control turns on its place Pipeline, when needing to make refrigerant condenser 2 to turn on second throttling device, control the pipe that the 4th on-off valve turns on its place Road.
Preferably, computer-room air conditioning system 100 also includes check valve 20, as shown in figure 1, the import 201 of check valve 20 and fluorine The outlet 92 of pump 9 is connected, and the outlet 202 of check valve 20 is connected between first throttle device 31 and vaporizer 4.That is, Check valve 20 only allows coolant in the import 201 from check valve 20 to one-way conduction on the direction of the outlet 202 of check valve 20, and Block on from the outlet 202 of check valve 20 to the direction of import 201 of check valve 20.Thereby may be ensured that by arranging check valve 20 The operation safety of computer-room air conditioning system 100.
The control method of computer-room air conditioning system according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 4.Firstly the need of Illustrate, computer-room air conditioning system according to embodiments of the present invention has refrigeration mode, refrigeration compensation model and heat-pipe refrigerating mould Formula.The service condition of three kinds of mode of operations is relevant with the temperature relation in outdoor environment temperature and machine room.In running mode switching The front temperature range for needing to judge outdoor environment temperature T, specifically:
When outdoor environment temperature T is higher, now need to run refrigeration mode, i.e., when outdoor environment temperature T is warm with first Degree Tb is when meeting T > Tb, controls compressor start and fluorine pump shuts down that (if before refrigeration mode is started, fluorine pump has been to shut down shape During state, the stopped status of fluorine pump now need to be only kept), control refrigerant condenser is turned on first throttle device and throttled with second Device is blocked, and the first on-off valve of control is turned on and the second on-off valve is blocked.As shown in Fig. 2 the operation circulating path of coolant is:It is cold Matchmaker flows in refrigerant condenser from exhaust outlet of compressor outlet and is condensed, condensed coolant Jing first throttles device blood pressure lowering Enter in vaporizer after throttling and be evaporated, the coolant so as to lower the temperature to the air in machine room, from after vaporizer discharge The gas returning port of compressor is flowed back to when the first on-off valve is turned on, kind of refrigeration cycle is so constituted.
And when outdoor environment temperature is sufficiently low, now compressor shutdown can be run heat pipe using the driving of fluorine pump Kind of refrigeration cycle, i.e., when outdoor environment temperature T and second temperature Ta meet T < Ta, control compressor shutdown and fluorine pump startup, control Make the conducting of the second on-off valve, wherein Tb > Ta.As shown in figure 4, the operation circulating path of coolant is:Coolant stream in device for storing liquid Go out and enter in vaporizer Jing after fluorine pump, such that it is able to lower the temperature to the indoor environment of machine room, then coolant Jing second leads to Disconnected valve is entered in heat pipe condenser, is flowed into the coolant in heat pipe condenser to release heat in the environment of outdoor relatively low temperature Amount, so as to be condensed, coolant obtains potential cold from outdoor environment, and then coolant continues towards the condensation of condenser/evaporator In wing passage, device for storing liquid is flowed back to after discharging from condensation wing passage, so circulation.Due to outdoor environment temperature it is sufficiently low, merely Operation heat-pipe refrigerating circulation can meet the refrigeration demand of machine room, therefore need not be compressed machine operation, it is possible thereby to greatly Reduce energy consumption.Wherein, in kind of refrigeration cycle the coolant in coolant and heat-pipe refrigerating circulation can be same medium, and the present invention is adopted Two kinds of identical working medium are that vaporizer circulates cooling, and high using phase-change heat-exchange mode heat transfer efficiency, heat exchanger structure is compact, it is to avoid The problem low using gas-gas or gas liquid exchanger heat transfer efficiency, heat exchanger area is huge etc., beneficial to ensureing air matter in machine room Amount, it is to avoid dust, moisture etc. are invaded.If now the temperature difference of indoor and outdoor is bigger, the effect of heat-pipe refrigerating pattern is better.
When outdoor environment temperature T is in an intermediate state, i.e. outdoor environment temperature T and the first temperature Tb and second temperature When Ta meets Ta≤T≤Tb, after control fluorine pump operation Preset Time S, according to outlet temperature Tz and the indoor setting temperature of vaporizer Comparison between degree Ts determines whether to start compressor.That is, when outdoor environment temperature is in an intermediate state, After the operation heat pipe unit scheduled time being driven first with fluorine pump, and then outlet temperature Tz according to vaporizer and indoor setting temperature Comparison between degree Ts determines whether to start compressor, that is to say, that by detecting whether machine room interior temperature degree reaches refrigeration Demand, can decide whether according to the actual needs to start compressor, it is possible thereby to keep compressor when non-essential Shut down, and then can be with energy saving.That is, when the temperature difference of indoor and outdoor is less, needing to consider simple operation heat pipe unit The refrigeration for whether meeting machine room is required.
That is, when outlet temperature Tz of vaporizer meets Tz > Ts with interior design temperature Ts, control compressor is opened Dynamic and control refrigerant condenser is turned on second throttling device and blocked with first throttle device, can now run refrigeration compensation Pattern, under the pattern, starts first fluorine pump, and compressor is started afterwards.Coolant operation when being illustrated in figure 3 refrigeration compensation model is former Reason figure, the coolant discharged by the air vent of compressor enters into second throttling device carries out blood pressure lowering throttling, then enters into condensation Coolant in the evaporation wing passage of vaporizer, with condensation wing passage is exchanged heat, and the coolant for condensing wing passage is condensed, and is evaporated Coolant in wing passage is evaporated.Thus when outdoor environment temperature is in the intermediate state of high temperature and low temperature, air conditioner in machine room system System needs the kind of refrigeration cycle of compressor, while fluorine pump can be opened compensate to the kind of refrigeration cycle of compressor, now compressor Full load can not needed to run.It is possible thereby to save the energy consumption of compressor.
When outlet temperature Tz of vaporizer meets Tz≤Ts with interior design temperature Ts, control compressor is remained shut off. That is, the refrigeration that now detecting simple operation heat pipe unit can meet machine room continues to keep compressor to stop by requiring Machine, only carries out heat-pipe refrigerating pattern.It is possible thereby to greatly energy saving.
The control method of computer-room air conditioning system according to embodiments of the present invention is simple, can greatly energy saving, and By also having the advantage that using the control method:
The present invention is integrated to apply compression-type refrigeration and power separate heat pipe Refrigeration Technique, according to outdoor environment temperature Different situations and indoor heat load situation carry out operating mode switching and refrigerating capacity is adjusted, and set up compensation mode of operation, have widened heat pipe The operation warm area of circulation, solve indoor/outdoor temperature-difference it is less when simple operation heat pipe unit and cause refrigerating capacity not enough and must transport The problem of row compression-type refrigeration unit, is easy to maximally utilize outdoor natural cooling source, realizes the low cost fortune of air conditioner in machine room unit Row and energy-conservation.
The present invention adopts two kinds of identical working medium and circulates cooling for vaporizer, high using phase-change heat-exchange mode heat transfer efficiency, changes Hot device compact conformation, it is to avoid low using gas-gas or gas liquid exchanger heat transfer efficiency, the huge problem of heat exchanger area is beneficial to Ensure air quality in machine room, it is to avoid dust, moisture etc. are invaded.
The present invention is that vaporizer circulates cooling using identical working medium for different working modes, reduces secondary heat exchange efficiency low Lower problem, while forcing driving cycle, the big problem of refrigerant charge to be eased using fluorine pump for different working modes.
The computer-room air conditioning system of the present invention is directly in cooling mode end (vaporizer) cooling, under refrigeration compensation model Refrigeration unit is not enough using the condensation of larger temperature difference compensation with heat pipe unit, strengthens the efficiency of computer-room air conditioning system, regional practicality By force.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described Structure, material or feature are contained at least one embodiment of the present invention or example.In this manual, to above-mentioned term Schematic representation is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or spy Point can in an appropriate manner be combined in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that:Not These embodiments can be carried out with various changes, modification, replacement and modification in the case of the principle and objective that depart from the present invention, this The scope of invention is limited by claim and its equivalent.

Claims (6)

1. a kind of computer-room air conditioning system, it is characterised in that include:
Compressor, refrigerant condenser, first throttle device, vaporizer, the first on-off valve that head and the tail are sequentially connected, described first leads to The selectable pipeline for turning on and blocking its place of disconnected valve;
Condenser/evaporator, limits the condensation wing passage and evaporation wing passage being spaced apart from each other in the condenser/evaporator, described The import of evaporation wing passage is connected between the refrigerant condenser and the first throttle device by second throttling device, institute The outlet for stating evaporation wing passage is connected between the compressor and first on-off valve;
Heat pipe condenser, the import of the heat pipe condenser is connected to the vaporizer and described first and leads to by the second on-off valve Between disconnected valve, the outlet of the heat pipe condenser is connected with the import of the condensation wing passage, and second on-off valve may be selected Conducting and block its place pipeline;
Device for storing liquid, the import of the device for storing liquid is connected with the outlet of the condensation wing passage;
Fluorine pump, the import of the fluorine pump is connected with the outlet of the device for storing liquid, and the outlet of the fluorine pump is connected to described first Between throttling arrangement and the vaporizer;
Wherein, selectable with the first throttle device and the second throttling device of the refrigerant condenser leads Lead to and block with another.
2. computer-room air conditioning system according to claim 1, it is characterised in that also including three-way valve, the three-way valve has First valve port, the second valve port and the 3rd valve port, first valve port is connected with the refrigerant condenser, second valve port and institute State first throttle device to be connected, the 3rd valve port is connected with the second throttling device, wherein first valve port may be selected With the second valve port and the 3rd valve port in a conducting and block with another.
3. computer-room air conditioning system according to claim 1, it is characterised in that also include:
3rd on-off valve, the 3rd on-off valve is connected between the refrigerant condenser and the first throttle device, described The selectable pipeline for turning on and blocking its place of 3rd on-off valve;
4th on-off valve, the 4th on-off valve is connected between the refrigerant condenser and the second throttling device, described The selectable pipeline for turning on and blocking its place of 4th on-off valve.
4. computer-room air conditioning system according to claim 1, it is characterised in that also including check valve, the check valve enters Mouthful be connected with the outlet of the fluorine pump, the outlet of the check valve be connected to the first throttle device and the vaporizer it Between.
5. a kind of control method of the computer-room air conditioning system according to any one of claim 1-4, it is characterised in that
When outdoor environment temperature T and the first temperature Tb meet T > Tb, control the compressor start and the fluorine pump shut down, Control the refrigerant condenser to turn on the first throttle device and block with second throttling device, control first break-make Valve is turned on and the second on-off valve is blocked;
When outdoor environment temperature T and second temperature Ta meet T < Ta, the compressor shutdown and the fluorine pump startup are controlled, Control the second on-off valve conducting;
When outdoor environment temperature T meets Ta≤T≤Tb with first temperature Tb and second temperature Ta, the fluorine is controlled It is true according to the comparison between outlet temperature Tz and indoor design temperature Ts of the vaporizer after pump operation Preset Time S It is fixed whether to start the compressor, wherein Tb > Ta.
6. control method according to claim 5, it is characterised in that
When outlet temperature Tz of the vaporizer meets Tz > Ts with the indoor design temperature Ts, the compressor start is controlled And the control refrigerant condenser is turned on the second throttling device and blocked with the first throttle device;
When outlet temperature Tz of the vaporizer meets Tz≤Ts with the indoor design temperature Ts, control the compressor and keep Shut down.
CN201611140318.5A 2016-12-12 2016-12-12 Air conditioner system in machine room and control method of air conditioner system Pending CN106679021A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109340960A (en) * 2018-09-27 2019-02-15 克莱门特捷联制冷设备(上海)有限公司 The combined air-conditioning system and its control method of computer room and room
CN109341138A (en) * 2018-09-27 2019-02-15 克莱门特捷联制冷设备(上海)有限公司 The combined air-conditioning system and its control method of computer room and hot-water heating system
CN109357426A (en) * 2018-09-27 2019-02-19 克莱门特捷联制冷设备(上海)有限公司 Combined air-conditioning system and its control method for computer room and room
CN109357427A (en) * 2018-09-27 2019-02-19 克莱门特捷联制冷设备(上海)有限公司 Combined air-conditioning system and its control method for computer room and hot-water heating system
CN112303761A (en) * 2020-10-15 2021-02-02 珠海格力电器股份有限公司 Fluorine pump air conditioning system for adjusting central heating temperature and control method
CN113473802A (en) * 2021-06-29 2021-10-01 苏州浪潮智能科技有限公司 Cooling system of cold plate type server and control method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104315668A (en) * 2014-11-05 2015-01-28 中国扬子集团滁州扬子空调器有限公司 Control method of photovoltaic drive heat pipe composite machine room air conditioning unit
CN104613668A (en) * 2015-02-28 2015-05-13 广东美的暖通设备有限公司 Combined air-conditioning system as well as control method thereof
US9605882B2 (en) * 2013-12-11 2017-03-28 Trane International Inc. Heat pump with exhaust heat reclaim

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9605882B2 (en) * 2013-12-11 2017-03-28 Trane International Inc. Heat pump with exhaust heat reclaim
CN104315668A (en) * 2014-11-05 2015-01-28 中国扬子集团滁州扬子空调器有限公司 Control method of photovoltaic drive heat pipe composite machine room air conditioning unit
CN104613668A (en) * 2015-02-28 2015-05-13 广东美的暖通设备有限公司 Combined air-conditioning system as well as control method thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109340960A (en) * 2018-09-27 2019-02-15 克莱门特捷联制冷设备(上海)有限公司 The combined air-conditioning system and its control method of computer room and room
CN109341138A (en) * 2018-09-27 2019-02-15 克莱门特捷联制冷设备(上海)有限公司 The combined air-conditioning system and its control method of computer room and hot-water heating system
CN109357426A (en) * 2018-09-27 2019-02-19 克莱门特捷联制冷设备(上海)有限公司 Combined air-conditioning system and its control method for computer room and room
CN109357427A (en) * 2018-09-27 2019-02-19 克莱门特捷联制冷设备(上海)有限公司 Combined air-conditioning system and its control method for computer room and hot-water heating system
CN109357427B (en) * 2018-09-27 2020-11-03 克莱门特捷联制冷设备(上海)有限公司 Combined air conditioning system for machine room and hot water system and control method thereof
CN109341138B (en) * 2018-09-27 2020-11-03 克莱门特捷联制冷设备(上海)有限公司 Combined air conditioning system of machine room and hot water system and control method thereof
CN109340960B (en) * 2018-09-27 2020-11-03 克莱门特捷联制冷设备(上海)有限公司 Combined air conditioning system of machine room and control method thereof
CN109357426B (en) * 2018-09-27 2020-11-03 克莱门特捷联制冷设备(上海)有限公司 Combined air conditioning system for machine room and control method thereof
CN112303761A (en) * 2020-10-15 2021-02-02 珠海格力电器股份有限公司 Fluorine pump air conditioning system for adjusting central heating temperature and control method
CN113473802A (en) * 2021-06-29 2021-10-01 苏州浪潮智能科技有限公司 Cooling system of cold plate type server and control method

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