CN105423472A - Heat pipe type air conditioner system for data center and heat dissipating method of heat pipe type air conditioner system - Google Patents
Heat pipe type air conditioner system for data center and heat dissipating method of heat pipe type air conditioner system Download PDFInfo
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- CN105423472A CN105423472A CN201610016385.XA CN201610016385A CN105423472A CN 105423472 A CN105423472 A CN 105423472A CN 201610016385 A CN201610016385 A CN 201610016385A CN 105423472 A CN105423472 A CN 105423472A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a heat pipe type air conditioner system for a data center. An inner circulation subsystem and an outer circulation subsystem are formed by an air conditioner, a cabinet ventilation unit and a heat pipe unit. A shell is partitioned into two sealed spaces through a partition plate, and the heat pipe unit is arranged in the shell in the mode that the heat end and the cold end of the heat pipe unit are located in the two sealed spaces of the shell respectively. An air outlet of the air conditioner is communicated with an air inlet of the cabinet ventilation unit through a pipeline, an air outlet of the cabinet ventilation unit is communicated with an air inlet in one side of the sealed space with the heat end of the heat pipe unit through a pipeline, an air outlet located in the side opposite to the air inlet in one side of the sealed space with the heat end of the heat pipe unit is connected with an air inlet of the air conditioner through a pipeline, and thus the inner circulation subsystem is formed. The air inlet is formed in one side of the sealed space with the cold end of the heat pipe unit, an air outlet is formed in the opposite side, and thus the outer circulation subsystem is formed through action of a draught fan of the sealed space with the cold end of the heat pipe unit and the external environment. The heat pipe type air conditioner system can effectively prevent clod air flow and hot air flow from mixing with each other in a machine room, and the overall heat dissipating efficiency of the machine room is improved.
Description
Technical field
The invention belongs to machine room heat radiation and heat pipe heat exchanging technical field, relate to a kind of hot-pipe type air conditioning system for data center's (or machine room) and high efficiency radiation method.
Background technology
Data center's (also known as machine room) has now become the important component part in the national economic development, is to advance national science and technology industrial information and digitized mainstay.Along with the development of data center's scale and integrated level, in server, information technoloy equipment power density grows with each passing day, heat density sharp increase, and heat dissipation problem and the energy consumption problem of data center more and more receive publicity.The rack of rack server is stuck with for 100, its total power consumption can reach 50 kilowatts, add that heat radiation cooling system also needs to be equal to the power consumption of computer hardware self, often to spend commercial power 0.64 yuan calculating, 1 year fault-free is runed this rack server and will be spent about 550,000 yuan of electricity charge.The power consumption of data center just with annual 15% ~ 20% speed increment.
Current, China facing the contradiction of economic growth and environmental resource bearing capacity fast, and energy saving standard becomes the theme of the many pillar of the economy industry developments of China and upgrading.The construction and development of data center also needs the direction to energy-saving and environmental protection and greenization run more to advance.The traditional thermal management technology of data center, as Forced Air Convection heat exchange, single-phase liquid cooling etc., because exchange capability of heat is not enough or the reason such as conditionality, causes the undesirable and high cost of effect.Heat pipe, as a kind of novel thermal management technology, has it unique at national economy especially electronic information field in life and applies widely.Heat pipe is a kind of by phase-change heat transfer, the heat transfer element with heat superconducting performance, the latent heat that it is produced by the phase transformation of managing interior working media carrys out transferring heat, its Equivalent Thermal Conductivities is hundreds of times even thousands of times of common metal material thermal conductivity, is described as " superconductor " of heat.
Patent of invention (application number 201110215178.4) discloses a kind of heat pipe type heat exchange system for communication data room and heat change method thereof, this system is a heat exchange of heat pipe, heat pipe in housing is gravity type heat pipe and radiating fin, the too high problem of energy consumption of machine room can be reduced to a certain extent, alleviate air-conditioning equipment energy consumption too high bring use Voltage force.But this patent disclosure exists several weak point: 1) do not relate to the hot and cold air blending avoided in machine room, therefore it cannot solve machine room heat dissipation problem efficiently, and the energy consumption reduction degree of machine room is little; 2) what system adopted is vertical heat pipe exchanger, heat pipe is vertically arranged in housing, the condensation segment of heat pipe is positioned at directly over bringing-up section, therefore the height of whole system is higher, this punches to the cutter wall of wall and load-bearing has very high requirement, the binding character that wall suspension type is installed is large, compares and is suitable for ground vertical installation.Utility model patent (application number 201320756559.8) discloses the heat pipe air conditioner heat-exchanger rig that a kind of base station uses, this device is embedded into by heat-pipe elements in air conditioner in machine room device, heat pipe and air-conditioning are coupled together, reduce the opening time of compressor of air conditioner, thus reduce energy consumption.But this patent has the following disadvantages: 1) heat pipe is combined with air-conditioning and just needs to redesign air-conditioning or dismounting is changed, and system realizes and safeguards inconvenient; 2) patent does not announce the details of the heat pipe that it uses, and only give the position view of heat pipe in aircondition, operation possibility has much room for improvement.Document " research of heat pipe-type air conditioner in machine room performance test " is placed in by heat exchange of heat pipe on the ground outside machine room, do not relate to the measure of the hot and cold air blending avoided in machine room equally, what adopt is separate type heat pipe exchanger to document " application study of information machine room heat pipe air conditioner system ", advantage to be arranged at a distance, it is little that shortcoming is that its heat exchange efficiency compares compact heat exchange of heat pipe, in the heat exchange of heat pipe that document " being applied to the experimental study of the heat pipe air conditioner system of communication base station " adopts, heat pipe is gravity type Water Heat Pipes, the working media of heat pipe is water, because the phase transition temperature of water is higher, therefore the heat-transfer capability of this heat pipe is limited.
Summary of the invention
The object of the invention is to propose a kind of hot-pipe type air conditioning system for data center and a kind of high efficiency radiation method, overcome the deficiencies in the prior art, effectively avoid the mutual blending of hot and cold air in machine room, an independently hot-pipe type air conditioning system is delivered directly to by the hot gas of being discharged by server, air-flow after hot-pipe type air conditioning cooling returns air conditioner in machine room, form a closed machine room indoor air flow circulation, improve the integral heat sink efficiency of machine room, reduce machine room operation energy consumption, thus reduce the overall PUE index of machine room, and system installation feasibility is high, the cost of installation and maintenance is lower.
Technical scheme of the present invention is as follows:
In order to realize foregoing invention object, the present invention discloses a kind of hot-pipe type air conditioning system for data center, pass through air-conditioning, rack unit ventilators and heat pipe unit form Inner eycle subsystem and outer circulation subsystem, described heat pipe unit comprises housing and heat pipe heat, by dividing plate, described housing is divided into two enclosure spaces, the mode that described heat pipe heat lays respectively among two enclosure spaces of housing with its hot junction and cold junction is configured in described housing, thus, described Inner eycle subsystem is: described air-conditioner air outlet is communicated with described rack unit ventilators air intake vent via pipeline, the air outlet of described rack unit ventilators is communicated with by the air intake vent of pipeline with the enclosure space side in the hot junction of described heat pipe unit, the air outlet being positioned at its relative side is connected by the air intake vent of pipeline with described air-conditioning, thus form Inner eycle subsystem, described outer circulation subsystem is: the side of the cold junction confined space of described heat pipe unit has air intake vent, relative side has air outlet, thus, the cold junction confined space of described heat pipe unit forms outer loop subsystem by the effect of blower fan and external environment condition.
Preferred described heat pipe unit adopts gravity-type heat pipe group, configuration mode is that cold junction is higher than hot junction, the heat pipe of described heat pipe heat is all with the angle of inclination configured in parallel of counterclockwise 5-15 degree, described housing is fixed on the top of machine room side walls by described heat pipe unit by bracing frame, after fixing, air outlet and the air intake vent of described cold junction confined space are all positioned at outside machine room, thus make the environment outside described cold junction confined space and machine room form outer circulation subsystem, and described air-conditioning in described hot junction confined space and machine room and described rack unit ventilators form Inner eycle subsystem.
Preferred described heat pipe unit adopts gravity-type heat pipe group, configuration mode is that cold junction is higher than hot junction, the heat pipe configured in parallel all vertically of described heat pipe heat, described heat pipe unit is fixed on the roof of machine room by described housing, the air intake vent of the confined space in described hot junction and air outlet pass in machine room, form Inner eycle subsystem with the described air-conditioning be arranged in machine room and described rack unit ventilators, the environment of confined space directly and outside machine room of described cold junction forms outer loop subsystem.
Preferred described rack unit ventilators is be configured with closed refrigerator in the both sides of rack respectively and close hot cabinet, and the air intake vent of described rack unit ventilators is positioned at the bottom of described closed refrigerator, and the air outlet of described rack unit ventilators is positioned at the described top closing hot cabinet; The pipeline be communicated with described air-conditioner air outlet is communicated with via the air intake vent of plenum chamber passage at the bottom of ground with described rack unit ventilators, is communicated with the air intake vent of described air-conditioning with the air outlet of the confined space in the described hot junction furred ceiling via machine room.
Preferred described heat pipe adopts aluminium-ammonia heat pipe or copper-freon heat pipe or aluminium-methyl alcohol heat pipe.
The air outlet place of preferred described rack unit ventilators is provided with extraction fan, the air outlet place of described hot junction confined space is provided with hot junction blower fan, the air intake vent place of described cold junction confined space is provided with cold junction blower fan, described extraction fan and hot junction blower fan are fixed blower fan frequently, and described cold junction blower fan is frequency control blower fan.
Preferably multiple hot junction intake stack being connected to server cabinet can be connected to the air inlet of the side, hot junction of hot-pipe type air conditioning housing in parallel simultaneously.
The invention provides a kind of high efficiency radiation method for data center, it utilizes the hot-pipe type air conditioning system for data center according to any one of claim 1 ~ 7, it is characterized in that, comprising:
The work temperature 0 of step one, setting air conditioner in machine room compressor start;
The startup threshold values Δ T of the cold junction blower fan unlatching of step 2, setting hot-pipe type air conditioning system;
Temperature T3 in step 3, the temperature T1 obtained in the intake stack of hot junction, the outer temperature T2 of machine room and hot junction wind pipe;
Step 4, setting T4=T1-T2, as T4 >=Δ T, control program opens cold junction blower fan, heat pipe startup work, otherwise cold junction blower fan does not start, and heat pipe does not start;
Step 5, as the T4 in step 4 >=Δ T, further setting T5=T4-Δ T, control program according to the frequency of the size adjustment cold junction blower fan of temperature T5, thus regulates the rotating speed of cold junction blower fan, and T5 is larger, and rotating speed can be lower, otherwise rotating speed is higher;
Step 6, as T3 >=T0, the compressor start of air conditioner in machine room, start process of refrigerastion, otherwise the compressor of air conditioner in machine room does not start, only air-conditioning fan running.
Preferred hot-pipe type air conditioning system and air conditioner in machine room belong to series relationship, and before hot-pipe type air conditioning system is positioned at, the heat major part that therefore server produces directly is discharged into outside machine room by heat pipe, and minor heat load is born by air conditioner in machine room.
The heat transfer of the heat pipe in preferred hot-pipe type air conditioning system has one-way.As T4 >=Δ T, heat pipe can start automatically, and without the need to extra power, after heat pipe starts, heat is transmitted to condensation segment from the evaporator section of heat pipe automatically; As T4 < Δ T, heat pipe does not start, and the heat in ambient atmosphere cannot transmit from the condensation segment of heat pipe to evaporator section inversely.
The present invention is in order to avoid the mutual blending of hot and cold air in machine room, improve the integral heat sink effect of machine room, a closed refrigerator is connected in the front portion of rack, cold airflow after air conditioner in machine room refrigeration flows to from floor openings and closes in refrigerator after blow at the bottom of ground pipeline and ground end plenum chamber passage, then flows to the server in rack.
The heat transfer of the heat pipe in hot-pipe type air conditioning system of the present invention has one-way.As T4 >=Δ T, heat pipe can start automatically, and without the need to extra power, after heat pipe starts, heat is transmitted to condensation segment from the evaporator section of heat pipe automatically; As T4 < Δ T, heat pipe does not start, and the heat in ambient atmosphere cannot transmit from the condensation segment of heat pipe to evaporator section inversely.In addition, hot-pipe type air conditioning system and air conditioner in machine room belong to series relationship, and before hot-pipe type air conditioning system is positioned at, the heat major part that therefore server produces directly is discharged into outside machine room by heat pipe, and minor heat load is born by air conditioner in machine room.Heat pipe in hot-pipe type air conditioning can at annual most of the time startup optimization, the accounting of whole year operation time in the north average more than 70%, the accounting of whole year operation time in south average more than 60%, therefore, the hot-pipe type air conditioning system announced of the present invention and the energy-saving effect of heat dissipating method fairly obvious.
High efficiency radiation method disclosed by the invention, specify that hot-pipe type air conditioning belong to air conditioner in machine room together with collaborative work, divide the work clear and mutually promote.When ambient temperature is lower, as winter, the main work of hot-pipe type air conditioning, air conditioner in machine room stops refrigeration work automatically due to T3 < T0; When ambient temperature is higher, as the summer of sweltering heat, the main work of air conditioner in machine room, hot-pipe type air conditioning quits work automatically due to T4 < Δ T, server discharge thermal current superheater tube and not heat exchange, directly flow to air-conditioning, and due to the unidirectional heat-transfer character of heat pipe, the heat of external environment also cannot pass to air-flow by heat pipe; When ambient temperature not high not low time, as season in spring and autumn, hot-pipe type air conditioning and air conditioner in machine room work, based on hot-pipe type air conditioning simultaneously.In addition, both collaborative works can also ensure the safety of machine room more efficiently, and when some in both breaks down, another is still in operation work, machine room heat radiation can not stop, and computer room temperature can not cause short-term steep temperature rise and cause the damage of server because of fault.
The present invention has the following advantages:
1) whole system is without the need to carrying out dismounting change to equipment cabinet server and air-conditioning, and installation and maintenance are very easy, and engineering realizability is strong, and system architecture is simple, is easy to carrying out applying and promoting in dissimilar and data center that is size.
2) two kinds of mounting means of system all do not occupy the area in data center's internal ground and space, and all pipelines and accessory are all hidden in furred ceiling, and single unit volume is less, and therefore whole system has the advantage that outward appearance is neat, space availability ratio is high.
3) heat pipe that system adopts is cryogenic fluid heat pipe, compares the heat radiation that Water Heat Pipes is suitable for electronic device more, starts operating temperature lower, and heat-transfer capability is larger, and in 1 year, the working time accounting of hot-pipe type air conditioning is also larger.
4) a kind of high efficiency radiation method disclosed by the invention, hot-pipe type air conditioning technology and cold and hot channel enclosed technology are coupled together, the hot gas that server is discharged can be delivered directly to heat pipe evaporator section, and can not cold and hot blending in machine room, therefore improve the radiating efficiency of hot-pipe type air conditioning system, also improve the radiating efficiency of whole machine room simultaneously, reduce machine room operation energy consumption.
5) hot-pipe type air conditioning system and computer-room air conditioning system are cascaded, it is clear to divide the work, and mutually promotes, coupling operational, and comparing prior art can more energy-conservation, the heat radiation load that efficiently and safely completes whole data center.
Accompanying drawing explanation
Fig. 1 is the fundamental diagram of the hot-pipe type air conditioning system that a kind of wall suspension type is installed.
Fig. 2 is the front view of suspension type hot-pipe type air conditioning.
Fig. 3 is the fundamental diagram of the hot-pipe type air conditioning system of the vertical installation in a kind of roof.
Symbol description
1, wall; 2, end plenum chamber passage; 3, room furred ceiling; 4, rack; 5, refrigerator is closed; 6, hot cabinet is closed; 7, extraction fan; 8, hot junction intake stack; 9, housing; 10, support fixed structure; 11, tilting heat pipe; 12, hot junction blower fan; 13, cold junction blower fan; 14, vertical heat pipe; 15, hot junction wind pipe; 16, air conditioner in machine room; 17, end air-supply pipeline.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the present invention are described further.
As shown in Figure 1, for hot-pipe type air conditioning system and a kind of high efficiency radiation method of data center, comprise closed refrigerator 5, closed hot cabinet 6, extraction fan 7, hot junction intake stack 8, housing 9, support fixed structure 10, tilting heat pipe 11, hot junction blower fan 12, cold junction blower fan 13, vertical heat pipe 14 and hot junction wind pipe 15 etc.
Close the front portion that refrigerator 6 is connected to the rack 4 being placed with server, close the rear portion that hot cabinet 6 is connected to rack 4; The air inlet of the hot cabinet 6 of hot junction intake stack 8 connecting sealed and side, hot junction, housing 9 left side, hot junction wind pipe 15 connects the air outlet of side, hot junction, housing 9 left side and the return air inlet of air conditioner in machine room 16; Extraction fan 7 is arranged in hot junction intake stack 8, and hot junction blower fan 12 is arranged in hot junction wind pipe 15, and cold junction blower fan 13 is positioned at the air inlet position of cold junction side on the right of housing 9.Tilting heat pipe 11 is applied to the inside hanging the housing 9 be fixed on wall 1, as Fig. 1; Vertical heat pipe 14 is applied to the inside being placed on ground housing 9, as Fig. 3.Extraction fan 7 and hot junction blower fan 12 are fixed blower fan frequently, and described cold junction blower fan 13 is frequency control blower fan.
The housing 9 of hot-pipe type air conditioning system two kinds of modes are installed.Hang the top being fixed on machine room side walls 1, as shown in Figure 1.The hot junction of housing 9 is positioned at inside machine room wall 1, and the cold junction of housing 9 is positioned at the outside of machine room wall 1, the major part in housing 9 hot junction can hide by room furred ceiling 3, hot junction intake stack 8 and hot junction wind pipe 15 are also all arranged in room furred ceiling 3.A kind of is be placed horizontally on the ground on machine room roof, and the hot junction of housing 9 and cold junction are all positioned at the outside of machine room roof wall, and cold junction is positioned at top, hot junction, as shown in Figure 3, hot junction intake stack 8 and hot junction wind pipe 15 still cloth setting in room furred ceiling 3.
The evaporator section of tilting heat pipe 11 is positioned at the side, hot junction of housing, and condensation segment is positioned at the cold junction side of housing, and the condensation segment relative evaporation section of heat pipe is arranged with the angle of inclination of counterclockwise 5-15 degree.The evaporator section of heat pipe and condensation segment are undertaken separating and sealing by the dividing plate in the middle of housing.The inside of tilting heat pipe 11 does not have capillary wick, belongs to gravity-type heat pipe.The evaporator section of vertical heat pipe 14 is positioned at the side, bottom of housing, and condensation segment is positioned at the side, top of housing, and heat pipe is arranged with the form perpendicular to ground.The evaporator section of heat pipe and condensation segment are undertaken separating and sealing by the dividing plate in the middle of housing.The inside of vertical heat pipe 14 does not have capillary wick, belongs to gravity-type heat pipe.Tubing and the internal working medium of tilting heat pipe 11 and vertical heat pipe 14 can have identical selection, and two kinds of heat pipes recommend to adopt aluminium-ammonia heat pipes or copper-freon heat pipe or aluminium-methyl alcohol heat pipe.
Cold airflow after air conditioner in machine room 16 freezes flows to from floor openings and closes in refrigerator 5 after blow at the bottom of ground pipeline 17 and ground end plenum chamber passage 2, then flows in the server in rack 4.The heat that server work produces is absorbed by cold airflow, forms thermal current and flows out server, flow in closed hot cabinet 6, then flow through the heat pipes heat section of side, hot junction of hot junction intake stack 8 and hot-pipe type air conditioning system after air-flow heats up.The heat of thermal current is sent to the cooling section of heat pipe from bringing-up section by heat pipe, thermal current obtains cooling.Thermal current after cooling flows through hot junction wind pipe 15 again and enters in air conditioner in machine room 16.Air conditioner in machine room is further lowered the temperature to air-flow, and carries out circulating again.
By reference to the accompanying drawings 1, Fig. 2 and Fig. 3, the radiation processes of the hot-pipe type air conditioning system for data center of the present invention is described, specific as follows:
1) air conditioner in machine room 16 freeze after cold airflow carried to entirely end plenum chamber passage 2 by the end, ground air-supply pipeline 17.Close the underlying floor place of refrigerator 5 and have air outlet orifice plate, the part of cold airflow out enters closed refrigerator 5 from air-supply passage 2 at the bottom of ground afterwards, then flows in the server in rack 4.
2) heat generating components in cold airflow and server carries out heat transfer process, and heating up after cold airflow absorbs heat becomes thermal current.Under the effect of the small fan of thermal current in server, flowed in closed hot cabinet 6 by rack 4, then taken away by the extraction fan 7 closing hot cabinet 6 top, enter in hot junction intake stack 8.
3) for the hot-pipe type air conditioning system that wall suspension type is installed, the thermal current in multiple hot junctions intake stack 8 comes together in the hot junction air inlet on the left of housing 9, as Fig. 1.Fig. 2 gives the front view of suspension type hot-pipe type air conditioning, and Fig. 1 gives the side view of suspension type hot-pipe type air conditioning.As seen from Figure 2, thermal current flows to from the right side in the hot junction of housing 9, flows through the evaporator section of tilting heat pipe 11.Now system automatic control program judges, the work temperature 0 of setting air conditioner in machine room compressor start; The startup threshold values Δ T of the cold junction blower fan unlatching of setting hot-pipe type air conditioning system; Obtain the temperature T3 in the temperature T1 in the intake stack of hot junction, the outer temperature T2 of machine room and hot junction wind pipe; Setting T4=T1-T2, as T4 >=Δ T, control program opens cold junction blower fan, heat pipe startup work, otherwise cold junction blower fan does not start, and heat pipe does not start; Setting T5=T4-Δ T, control program according to the frequency of the size adjustment cold junction blower fan of temperature T5, thus regulates the rotating speed of cold junction blower fan, and T5 is larger, and rotating speed can be lower, otherwise rotating speed is higher; As T3 >=T0, the compressor start of air conditioner in machine room, start process of refrigerastion, otherwise the compressor of air conditioner in machine room does not start, only air-conditioning fan running.As T4 >=Δ T, tilting heat pipe 11 is in running order, the evaporator section of thermal current and tilting heat pipe 11 carries out heat exchange, heat is transmitted to the evaporator section of tilting heat pipe 11 from thermal current, liquid refrigerant in heat pipe evaporator section produces phase transformation after absorbing heat, liquid becomes gas, the condensation segment of gaseous working medium automatic stream heat pipe.After thermal current transfers heat to heat pipe, temperature obtains reduction, under the effect of hot junction blower fan 12, flows out from the left side in the hot junction of housing 9.As T4 < Δ T, tilting heat pipe 11 does not start, and thermal current flows through the evaporator section of heat pipe and do not conduct heat, and the temperature of thermal current can not reduce, and under the effect of hot junction blower fan 12, flows out from the left side in the hot junction of housing 9.
4) meanwhile, as T4 >=Δ T, under the effect of cold junction blower fan 13, as Fig. 2, the cold air in ambient atmosphere environment flows to from the left side of the cold junction of housing 9, flows through the condensation segment of tilting heat pipe 11.The condensation segment of cool ambient air and tilting heat pipe 11 carries out heat exchange, heat is transmitted to cool ambient air from the condensation segment of tilting heat pipe 11, condensation phase transformation is there is in the working medium in heat pipe condenser section due to heat release, gas becomes liquid, liquid flows back to the evaporator section of heat pipe under gravity automatically from the condensation segment of heat pipe, so constantly circulation repeatedly.Heat up after cool ambient air endothermic heat and become hot-air, and flow out from the right side of the cold junction of housing 9, be discharged in ambient atmosphere.As T4 < Δ T, cold junction blower fan 13 cuts out, and the cold junction of housing 9 does not have air to flow.
5) for the hot-pipe type air conditioning system of the vertical installation in roof, the thermal current in multiple hot junctions intake stack 8 comes together in the hot junction air inlet of housing 9 bottom, as Fig. 3.Thermal current flows to from the right side in the hot junction of housing 9 bottom, flows through the evaporator section of vertical heat pipe 14.Now system automatic control program judges, as T4 >=Δ T, vertical heat pipe 14 is in running order, thermal current carries out heat exchange with the evaporator section of vertical heat pipe 14, heat is transmitted to the evaporator section of vertical heat pipe 14 from thermal current, liquid refrigerant in heat pipe evaporator section produces phase transformation after absorbing heat, and liquid becomes gas, the condensation segment of gaseous working medium automatic stream heat pipe.After thermal current transfers heat to heat pipe, temperature obtains reduction, under the effect of hot junction blower fan 12, flows out from the left side in the hot junction of housing 9 bottom.As T4 < Δ T, vertical heat pipe 14 does not start, and thermal current flows through the evaporator section of heat pipe and do not conduct heat, and the temperature of thermal current can not reduce, and under the effect of hot junction blower fan 12, flows out from the left side in the hot junction of housing 9 bottom.
6) meanwhile, as T4 >=Δ T, under the effect of cold junction blower fan 13, as Fig. 3, the cold air in ambient atmosphere environment flows to from the left side of the cold junction on housing 9 top, flows through the condensation segment of vertical heat pipe 14.Cool ambient air carries out heat exchange with the condensation segment of vertical heat pipe 14, heat is transmitted to cool ambient air from the condensation segment of vertical heat pipe 14, condensation phase transformation is there is in the working medium in heat pipe condenser section due to heat release, gas becomes liquid, liquid flows back to the evaporator section of heat pipe under gravity automatically from the condensation segment of heat pipe, so constantly circulation repeatedly.Heat up after cool ambient air endothermic heat and become hot-air, and flow out from the right side of the cold junction on housing 9 top, be discharged in ambient atmosphere.As T4 < Δ T, cold junction blower fan 13 cuts out, and the cold junction of housing 9 does not have air to flow.
7) thermal current flowed out from the hot junction air outlet of housing 9 enters hot junction wind pipe 15, and in final inflow air conditioner in machine room 16.The control program of air conditioner in machine room 16 carries out automatic decision, and as T3 >=T0, the compressor start of air conditioner in machine room 16, starts process of refrigerastion, and carry out cooling process to the hot gas gas flowed into, thermal current becomes cold airflow.As T3 < T0, show now to become cold airflow through the thermal current of hot pipe cooling, the compressor of air conditioner in machine room 16 does not start, and process of refrigerastion is not opened.
8) cold airflow after air conditioner in machine room 16 refrigeration cool-down is carried to entirely end plenum chamber passage 2 by the end, ground air-supply pipeline 17 again, and carries out successively according to above-mentioned steps, and circulation repeatedly, defines a closed airflow circulating loop.
It should be noted last that, above content is only to the specific embodiment of the present invention example and explanation, and and unrestricted.According to conception of the present invention above-mentioned embodiment modified or supplement or adopt similar mode to substitute, its function produced do not exceed that description and accompanying drawing contain yet spiritual time, all should in protection scope of the present invention.
Claims (10)
1. the hot-pipe type air conditioning system for data center, it is characterized in that: pass through air-conditioning, rack unit ventilators and heat pipe unit form Inner eycle subsystem and outer circulation subsystem, described heat pipe unit comprises housing and heat pipe heat, by dividing plate, described housing is divided into two enclosure spaces, the mode that described heat pipe heat lays respectively among two enclosure spaces of housing with its hot junction and cold junction is configured in described housing, thus, described Inner eycle subsystem is: described air-conditioner air outlet is communicated with described rack unit ventilators air intake vent via pipeline, the air outlet of described rack unit ventilators is communicated with by the air intake vent of pipeline with the enclosure space side in the hot junction of described heat pipe unit, the air outlet being positioned at its relative side is connected by the air intake vent of pipeline with described air-conditioning, thus form Inner eycle subsystem, described outer circulation subsystem is: the side of the cold junction confined space of described heat pipe unit has air intake vent, relative side has air outlet, thus, the cold junction confined space of described heat pipe unit forms outer loop subsystem by the effect of blower fan and external environment condition.
2. the hot-pipe type air conditioning system for data center according to claim 1, it is characterized in that: described heat pipe unit adopts gravity-type heat pipe group, configuration mode is that cold junction is higher than hot junction, the heat pipe of described heat pipe heat is all with the angle of inclination configured in parallel of counterclockwise 5-15 degree, described housing is fixed on the top of machine room side walls by described heat pipe unit by bracing frame, after fixing, air outlet and the air intake vent of described cold junction confined space are all positioned at outside machine room, thus make the environment outside described cold junction confined space and machine room form outer circulation subsystem, and described air-conditioning in described hot junction confined space and machine room and described rack unit ventilators form Inner eycle subsystem.
3. the hot-pipe type air conditioning system for data center according to claim 1, it is characterized in that: described heat pipe unit adopts gravity-type heat pipe group, configuration mode is that cold junction is higher than hot junction, the heat pipe configured in parallel all vertically of described heat pipe heat, described heat pipe unit is fixed on the roof of machine room by described housing, the air intake vent of the confined space in described hot junction and air outlet pass in machine room, Inner eycle subsystem is formed with the described air-conditioning be arranged in machine room and described rack unit ventilators, the environment of confined space directly and outside machine room of described cold junction forms outer loop subsystem.
4. the hot-pipe type air conditioning system for data center according to any one of claims 1 to 3, it is characterized in that: described rack unit ventilators is be configured with closed refrigerator in the both sides of rack respectively and close hot cabinet, the air intake vent of described rack unit ventilators is positioned at the bottom of described closed refrigerator, and the air outlet of described rack unit ventilators is positioned at the described top closing hot cabinet; The pipeline be communicated with described air-conditioner air outlet is communicated with via the air intake vent of plenum chamber passage at the bottom of ground with described rack unit ventilators, is communicated with the air intake vent of described air-conditioning with the air outlet of the confined space in the described hot junction furred ceiling via machine room.
5. the hot-pipe type air conditioning system for data center according to any one of claims 1 to 3, is characterized in that: described heat pipe adopts aluminium-ammonia heat pipe or copper-freon heat pipe or aluminium-methyl alcohol heat pipe.
6. the hot-pipe type air conditioning system for data center according to claim 1, it is characterized in that: the air outlet place of described rack unit ventilators is provided with extraction fan, the air outlet place of described hot junction confined space is provided with hot junction blower fan, the air intake vent place of described cold junction confined space is provided with cold junction blower fan, described extraction fan and hot junction blower fan are fixed blower fan frequently, and described cold junction blower fan is frequency control blower fan.
7. a kind of hot-pipe type air conditioning system for data center according to claim 1, is characterized in that: multiple hot junction intake stacks being connected to server cabinet can be connected to the air inlet of the side, hot junction of hot-pipe type air conditioning housing in parallel simultaneously.
8., for a heat dissipating method for data center, it utilizes the hot-pipe type air conditioning system for data center according to any one of claim 1 ~ 7, it is characterized in that, comprising:
The work temperature 0 of step one, setting air conditioner in machine room compressor start;
The startup threshold values Δ T of the cold junction blower fan unlatching of step 2, setting hot-pipe type air conditioning system;
Temperature T3 in step 3, the temperature T1 obtained in the intake stack of hot junction, the outer temperature T2 of machine room and hot junction wind pipe;
Step 4, setting T4=T1-T2, as T4 >=Δ T, control program opens cold junction blower fan, heat pipe startup work, otherwise cold junction blower fan does not start, and heat pipe does not start;
Step 5, as the T4 in step 4 >=Δ T, further setting T5=T4-Δ T, control program according to the frequency of the size adjustment cold junction blower fan of temperature T5, thus regulates the rotating speed of cold junction blower fan, and T5 is larger, and rotating speed can be lower, otherwise rotating speed is higher;
Step 6, as T3 >=T0, the compressor start of air conditioner in machine room, start process of refrigerastion, otherwise the compressor of air conditioner in machine room does not start, only air-conditioning fan running.
9. the heat dissipating method for data center according to claim 8, it is characterized in that: hot-pipe type air conditioning system and air conditioner in machine room belong to series relationship, and before hot-pipe type air conditioning system is positioned at, therefore the heat major part that server produces directly is discharged into outside machine room by heat pipe, and minor heat load is born by air conditioner in machine room.
10. the heat dissipating method for data center according to claim 8, is characterized in that: the heat transfer of the heat pipe in hot-pipe type air conditioning system has one-way.As T4 >=Δ T, heat pipe can start automatically, and without the need to extra power, after heat pipe starts, heat is transmitted to condensation segment from the evaporator section of heat pipe automatically; As T4 < Δ T, heat pipe does not start, and the heat in ambient atmosphere cannot transmit from the condensation segment of heat pipe to evaporator section inversely.
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