CN105066310A - Chilled water type machine room air conditioner of fluorine pump double-circulation natural cold source cold storage system - Google Patents
Chilled water type machine room air conditioner of fluorine pump double-circulation natural cold source cold storage system Download PDFInfo
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- CN105066310A CN105066310A CN201510601528.9A CN201510601528A CN105066310A CN 105066310 A CN105066310 A CN 105066310A CN 201510601528 A CN201510601528 A CN 201510601528A CN 105066310 A CN105066310 A CN 105066310A
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- heat pipe
- air conditioner
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- pipe array
- evaporation
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Classifications
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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
- F24F5/0017—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 using cold storage bodies, e.g. ice
- F24F5/0021—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 using cold storage bodies, e.g. ice using phase change material [PCM] for storage
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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
- F24F5/0046—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 using natural energy, e.g. solar energy, energy from the ground
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sustainable Energy (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a chilled water type machine room air conditioner of a fluorine pump double-circulation natural cold source cold storage system. The chilled water type machine room air conditioner comprises a shell, a refrigerating unit, a cold storage heat exchanger, and a condensation heat pipe array arranged in an outer environment, wherein the refrigerating unit and the cold storage heat exchanger are arranged in the shell; the refrigerating unit is provided with a water outlet pipe and a water inlet pipe; the cold storage heat exchanger comprises a sealing water tank arranged at the bottom of the shell, and an evaporation heat pipe array arranged in the sealing water tank; the sealing water tank contains a cold medium and is connected with the water inlet pipe of the refrigerating unit in parallel; the evaporation heat pipe array is used as an evaporation section of a heat pipe and is communicated with the condensation heat pipe array in the outer environment by an evaporation pipe; the condensation heat pipe array is used as a condensation section of the heat pipe and forms a circulation with the evaporation heat pipe array by a liquid return pipe; and the condensation heat pipe array is also provided with a cold fan and can be used for performing spraying type water washing for cooling. The chilled water type machine room air conditioner is relatively small in size, a high-efficiency heat transfer property of a gravity assisted heat pipe is used for storing a natural cold source in the outer environment in the phase-change cold medium, and latent heat of the cold medium is effectively utilized.
Description
Technical field
The invention belongs to the refrigeration technology field of air-conditioner set, particularly relate to the data center machine room refrigeration and cold accumulation system utilizing natural cooling source.
Background technology
The lasting refrigerating capacity of data center to refrigeration plant requires very high, when after external power source power-off, UPS may be used for information technoloy equipment and powers, but is typically not enough to and powers to the air-conditioning equipment that same power consumption is huge, only can power by the less equipment of the power consumption such as fan, water pump.Therefore, after power-off appears in data center, the conveying sink temperature of air conditioner in machine room equipment 2, can rapidly increase to about 40 DEG C in 3 minutes, cannot provide enough low-temperature receivers for machine room, easily causes machine of delaying or the damage of machine room electronic equipment.The power-off relay of current air conditioner in machine room is all adopt large-scale water system cold-storage tank, bulky, take up space large, makes troubles, cause energy saving of system inefficiency to heat insulation work.
Summary of the invention
Goal of the invention: for above-mentioned existing Problems existing and deficiency, the object of this invention is to provide a kind of frozen water type air conditioner in machine room of fluorine pump Two-way Cycle natural cooling source cold accumulation system, small volume, utilize the efficient heat transfer performance of gravity assisted heat pipe to be stored in phase transformation refrigerant by the natural cooling source of external environment, effectively make use of the latent heat of refrigerant.
Technical scheme: for achieving the above object, the technical solution used in the present invention is: a kind of frozen water type air conditioner in machine room of fluorine pump Two-way Cycle natural cooling source cold accumulation system, comprise housing, be located at refrigeration unit in housing and cold-storage heat-exchanger, and be located at the condensation heat pipe array of external environment, described refrigeration unit is provided with outlet pipe and water inlet pipe, described cold-storage heat-exchanger comprises the airtight water tank being located at housing bottom and the evaporation heat pipe array be located in airtight water tank, and described airtight water tank is provided with refrigerant and is connected in parallel with the water inlet pipe of refrigeration unit; Described evaporation heat pipe array as heat pipe evaporator section and be communicated with the condensation heat pipe array being placed in external environment by evaporation tube, described condensation heat pipe array as heat pipe condensation segment and by liquid back pipe again with evaporation heat pipe array be connected to form circulation, described condensation heat pipe array is also furnished with air-cooler and spray washing cools;
Described evaporation heat pipe array and condensation heat pipe array vertically rearrange by multiple row spiral heat pipe, and often row spiral heat pipe is entwined by two helical form heat pipes, and the inwall of spiral heat pipe is provided with wick layer.
Further improvement, the steam pipe of described evaporation heat pipe array is also parallel with refrigeration compressor, and realizes being incorporated to of refrigeration compressor by control valve or disconnect; Described liquid back pipe is also parallel with refrigerated medium pump, and realizes being incorporated to of refrigerated medium pump by control valve or disconnect.
Further improvement, described airtight water tank outer wall is provided with coil pipe layer, and the outer of coil pipe layer is arranged with heat-insulation layer.
Further improvement, the outer wall at 1/2 ~ 2/3 position of the upper end of described evaporation heat pipe array is smooth, and the outer wall at residue position is provided with ring fin.The spiral heat pipe adopting two strands to be wound around due to heat pipe in the present invention also to immerse in refrigerant heat absorption working medium is evaporated, and pipe range is at about 1m, evaporation endothermic Duan Guan top in this process, therefore first heat pipe outer wall freezes from middle and upper part, only the icing rate that ring fin is conducive to hypomere is set at hypomere and catches up with upper position, thus reach and evenly freeze.In addition, the more important thing is and make to keep more Large space between two of middle epimere strands of heat pipes, be beneficial to heat transfer.
Further improvement, the spacing of each heat pipe in described evaporation heat pipe array and condensation heat pipe array is 8 ~ 30cm.
Further improvement, described refrigerant is water, glycol water, the calcium chloride water of 30% ~ 45% or the aqueous solution containing 20% ~ 40% Disodium sulfate decahydrate and 15% ~ 25% sodium acetate trihydrate, or containing the aqueous solution of 20% ~ 40% Disodium sulfate decahydrate and 15% ~ 30% calcium chloride.
Further improvement, described spiral heat pipe adopts copper pipe, and the wick layer on inwall is porous foam layers of copper, has micropore capillarity and to be refluxed by working fluid condenses liquid absorptive collection efficiently evaporation endothermic again, and sintering cost is low.
Further improvement, the junction of the cold water pipes of described airtight water tank and handpiece Water Chilling Units is provided with triple valve.
Further improvement, the outsourcing footpath of described often row spiral heat pipe is 14 ~ 45cm, and the caliber of every root spiral heat pipe is 5 ~ 15cm, and helical pitch is 5 ~ 12cm; The winding direction of two row spiral heat pipes often in row spiral heat pipe is identical or contrary.
Beneficial effect: compared with prior art, the present invention has the following advantages: pass through cold accumulation system, the auxiliary equipment of blower fan, water pump is only opened when power-off, in conjunction with heat pipe-type and the compression refrigeration of fluorine pump a little, also can be continuously data center module and 10 ~ 15 minutes colds are provided, thus have enough time to start the stand-by power supply of data center module; Fluorine pump Two-way Cycle Cool Storage Technology combines the advantage of heat pipe-type and compression refrigeration, ensure that the security of data center, also reaches energy-conservation object; Cold-storage heat-exchanger is integrated in Air conditioner cabinet, and directly controls work and the switching of cold accumulation system by PLC control panel, achieve function i ntegration.
Accompanying drawing explanation
Fig. 1 is the structural representation of handpiece Water Chilling Units of the present invention;
Fig. 2 is the principle schematic of cold accumulation system of the present invention;
The structural representation of Fig. 3 position spiral heat pipe of the present invention.
Wherein, housing 1, refrigeration unit 2, cold-storage heat-exchanger 3, condensation heat pipe array 4, airtight water tank 5, evaporation heat pipe array 6, water inlet pipe 6, refrigerant surge tank 7, control valve 8, spiral heat pipe 9, refrigeration compressor 10, refrigerated medium pump 11, blower fan 12, steam pipe 13, liquid back pipe 14, choke valve 15.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
As shown in Figure 1, the frozen water type air conditioner in machine room of fluorine pump Two-way Cycle natural cooling source cold accumulation system of the present invention, mainly comprise housing, be located at refrigeration unit and cold-storage heat-exchanger in housing, and be placed in the condensation heat pipe array of external environment, described cold-storage heat-exchanger comprises the airtight water tank being provided with refrigerant and the evaporation heat pipe array being located at airtight water tank inside, import and the outlet of described airtight water tank are connected in parallel by the cold water pipes of pipeline and handpiece Water Chilling Units, and by being located at being incorporated to of Valve controlling cold-storage heat-exchanger on pipeline, simultaneously water tank is also connected with refrigerant surge tank and cushions refrigerant freezing and expansion.Evaporation heat pipe array in described airtight water tank is as the evaporator section of heat pipe, and the steam (vapor) outlet at top is communicated with the condensation heat pipe array of external environment by evaporation tube; Described condensation heat pipe array is as the condensation segment of heat pipe, and bottom is connected to form circulation with evaporation heat pipe array again by liquid back pipe, and described condensation heat pipe array is also furnished with spray washing and air-cooler cools; Described evaporation heat pipe array and condensation heat pipe array vertically rearrange by multiple row spiral heat pipe, and two helical form heat pipes that often row spiral heat pipe is 3 ~ 8cm by internal diameter are entwined, and the inwall of spiral heat pipe is provided with wick layer.The stroke of helix tube is longer relative to straight tube, has larger heat exchange area and working medium capacity, especially when two-tube helically coiling arrange time, larger heat exchange area can be exchanged for less space.
Also can on liquid back pipe refrigerated medium pump in parallel, and control being incorporated to of its refrigerated medium pump by control valve or disconnect, thus gravitational difference heat pipe can be adopted to reflux or power-forced backflow, realizing flexible arrangement pipeline.Further improvement, can be parallel with refrigeration compressor, and realize being incorporated to of refrigeration compressor by control valve or disconnect on the steam pipe of evaporation heat pipe array, thus when environment cannot provide enough colds, starts refrigerant compression mechanism cold.When being in the higher environment of equitemperature in summer, environment cannot for cold-storage apparatus enough low-temperature receivers are provided time, in such scheme, fluorine pump double circulation cold-storage device can also be introduced, that is: refrigerated medium pump and the backflow of control valve pressure working fluid condenses liquid are set on the liquid back pipe of evaporation heat pipe array, simultaneously at the evaporation tube also refrigeration compressor in parallel (i.e. fluorine pump) of evaporation heat pipe array, this refrigeration compressor can be the various ways such as vortex, screw rod, centrifugal and magnetic suspension.When sudden load change, cold-storage water tank and wind handpiece Water Chilling Units are run simultaneously, improve unit refrigerating capacity; If when there is a part of generating units fault in multiple stage handpiece Water Chilling Units at scene, open cold-storage pattern released cold quantity, ensure that cold continues supply.
In such scheme, refrigerant directly can adopt water, or adopts the calcium chloride water that latent heat is larger.Preferably, can also be the aqueous solution containing 20% ~ 40% Disodium sulfate decahydrate and 15% ~ 25% sodium acetate trihydrate, or contain the aqueous solution of 20% ~ 40% Disodium sulfate decahydrate and 15% ~ 30% calcium chloride, because the icing phase transition temperature of above-mentioned mixing refrigerant can reach 5 ~ 28 DEG C, thus temperature is higher again summer can effectively utilize external environment low-temperature receiver by its latent heat of phase change, the spray washing cold wind function outside especially supporting condensation heat pipe effectively utilizes Environmental cold source.
Preferably, the outer wall at 1/2 ~ 2/3 position of the upper end of evaporation heat pipe array is smooth, and the outer wall at residue position is provided with ring fin.The spiral heat pipe adopting two strands to be wound around due to heat pipe in the present invention also to immerse in refrigerant heat absorption working medium is evaporated, and pipe range is at about 1m, evaporation endothermic Duan Guan top in this process, therefore first heat pipe outer wall freezes from middle and upper part, only the icing rate that ring fin is conducive to hypomere is set at hypomere and catches up with upper position, thus reach and evenly freeze.In addition, the more important thing is and make to keep more Large space between two of middle epimere strands of heat pipes, be beneficial to heat transfer.Further, the spacing of evaporating each heat pipe in heat pipe array and condensation heat pipe array is 8 ~ 30cm, preferred 15cm, thus under the prerequisite ensureing certain refrigeration density, prevents water tank completely icing.
Further, described spiral heat pipe adopts copper pipe, and the wick layer on inwall is porous foam layers of copper, has micropore capillarity and to be refluxed by working fluid condenses liquid absorptive collection efficiently evaporation endothermic again.Sodium chloride and electrolytic copper powder can be sintered under a shielding gas during production and form mesh-structured fine-celled foam layers of copper, be conducive to the condensing reflux of condensed water.
While data center's refrigeration system normally works, the condensation heat pipe array of heat pipe is by spray washing evaporation and the heat exchange of blower fan cold wind, constantly the freon steam of evaporation heat pipe array evaporation release is carried out being cooled to liquid working substance, and be back to evaporation heat pipe array by gravitational difference effect, and the heat of vaporization again absorbed in water tank refrigerant, thus constantly from external environment condition, obtain low-temperature receiver and to the refrigerant cooling in water tank, and be cooled to mixture of ice and water gradually.When power-off occurs in data center, UPS starts drive blower fan and circulating pump, and by-pass valve control makes the low-temperature receiver of handpiece Water Chilling Units switch, and for book, data center continues cooling.
Claims (10)
1. the frozen water type air conditioner in machine room of a fluorine pump Two-way Cycle natural cooling source cold accumulation system, it is characterized in that: comprise housing, be located at refrigeration unit in housing and cold-storage heat-exchanger, and be located at the condensation heat pipe array of external environment, described refrigeration unit is provided with outlet pipe and water inlet pipe, described cold-storage heat-exchanger comprises the airtight water tank being located at housing bottom and the evaporation heat pipe array be located in airtight water tank, and described airtight water tank is provided with refrigerant and is connected in parallel with the water inlet pipe of refrigeration unit; Described evaporation heat pipe array as heat pipe evaporator section and be communicated with the condensation heat pipe array being placed in external environment by evaporation tube, described heat pipe absorbs heat in cold-storage heat-exchanger, refrigerant in cold-storage heat-exchanger is undergone phase transition, described condensation heat pipe array as heat pipe condensation segment and by liquid back pipe again with evaporation heat pipe array be connected to form circulation.
2. the frozen water type air conditioner in machine room of fluorine pump Two-way Cycle natural cooling source cold accumulation system according to claim 1, it is characterized in that: described evaporation heat pipe array and condensation heat pipe array vertically rearrange by multiple row spiral heat pipe, often row spiral heat pipe is entwined by two helical form heat pipes, and the inwall of spiral heat pipe is provided with wick layer; Described condensation heat pipe array is also furnished with air-cooler and/or spray washing cools.
3. the frozen water type air conditioner in machine room of fluorine pump Two-way Cycle natural cooling source cold accumulation system according to claim 1, it is characterized in that: the steam pipe of described evaporation heat pipe array is also parallel with refrigeration compressor, and realizes being incorporated to of refrigeration compressor by control valve or disconnect; Described liquid back pipe is also parallel with refrigerated medium pump, and realizes being incorporated to of refrigerated medium pump by control valve or disconnect.
4. the frozen water type air conditioner in machine room of fluorine pump Two-way Cycle natural cooling source cold accumulation system according to claim 1, is characterized in that: described airtight water tank outer wall is provided with coil pipe layer, and the outer of coil pipe layer is arranged with heat-insulation layer.
5. the frozen water type air conditioner in machine room of fluorine pump Two-way Cycle natural cooling source cold accumulation system according to claim 1, is characterized in that: the outer wall at 1/2 ~ 2/3 position of the upper end of described evaporation heat pipe array is smooth, and the outer wall at residue position is provided with ring fin.
6. the frozen water type air conditioner in machine room of fluorine pump Two-way Cycle natural cooling source cold accumulation system according to claim 1, is characterized in that: the spacing of each heat pipe in described evaporation heat pipe array and condensation heat pipe array is 8 ~ 30cm.
7. the frozen water type air conditioner in machine room of fluorine pump Two-way Cycle natural cooling source cold accumulation system according to claim 1, it is characterized in that: described refrigerant is water, glycol water, the calcium chloride water of 30% ~ 45% or the aqueous solution containing 20% ~ 40% Disodium sulfate decahydrate and 15% ~ 25% sodium acetate trihydrate, or containing the aqueous solution of 20% ~ 40% Disodium sulfate decahydrate and 15% ~ 30% calcium chloride.
8. the frozen water type air conditioner in machine room of fluorine pump Two-way Cycle natural cooling source cold accumulation system according to claim 1, it is characterized in that: described spiral heat pipe adopts copper pipe, and the wick layer on inwall is porous foam layers of copper.
9. the frozen water type air conditioner in machine room of fluorine pump Two-way Cycle natural cooling source cold accumulation system according to claim 1, is characterized in that: the junction of the cold water pipes of described airtight water tank and handpiece Water Chilling Units is provided with triple valve.
10. the frozen water type air conditioner in machine room of fluorine pump Two-way Cycle natural cooling source cold accumulation system according to claim 1, is characterized in that: the outsourcing footpath of described often row spiral heat pipe is 14 ~ 45cm, and the caliber of every root spiral heat pipe is 5 ~ 15cm, and helical pitch is 5 ~ 12cm; The winding direction of two row spiral heat pipes often in row spiral heat pipe is identical or contrary.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510601528.9A CN105066310A (en) | 2015-09-18 | 2015-09-18 | Chilled water type machine room air conditioner of fluorine pump double-circulation natural cold source cold storage system |
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| CN201510601528.9A CN105066310A (en) | 2015-09-18 | 2015-09-18 | Chilled water type machine room air conditioner of fluorine pump double-circulation natural cold source cold storage system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440437A (en) * | 2016-11-24 | 2017-02-22 | 南京佳力图机房环境技术股份有限公司 | Novel natural cooling resource refrigerating system and control method thereof |
| CN107084543A (en) * | 2017-06-06 | 2017-08-22 | 珠海格力电器股份有限公司 | Water-cooling water chilling unit and control method thereof |
| CN107345717A (en) * | 2016-06-13 | 2017-11-14 | 北京库蓝科技有限公司 | One kind compression and fluorine pump circulation refrigeration system |
| CN112628963A (en) * | 2020-12-16 | 2021-04-09 | 四川斯普信信息技术有限公司 | Double-cold-source heat pipe back plate multi-split air conditioning system and operation control method |
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| CN112628963A (en) * | 2020-12-16 | 2021-04-09 | 四川斯普信信息技术有限公司 | Double-cold-source heat pipe back plate multi-split air conditioning system and operation control method |
| CN112628963B (en) * | 2020-12-16 | 2022-04-26 | 四川斯普信信息技术有限公司 | Double-cold-source heat pipe back plate multi-split air conditioning system and operation control method |
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Application publication date: 20151118 |
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