CN105135570A - Fluorine pump dual-circulation water cooling unit cold accumulation system - Google Patents
Fluorine pump dual-circulation water cooling unit cold accumulation system Download PDFInfo
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- CN105135570A CN105135570A CN201510600847.8A CN201510600847A CN105135570A CN 105135570 A CN105135570 A CN 105135570A CN 201510600847 A CN201510600847 A CN 201510600847A CN 105135570 A CN105135570 A CN 105135570A
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- heat pipe
- pipe array
- evaporation
- cold accumulation
- accumulation system
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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
-
- 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
-
- 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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a fluorine pump dual-circulation water cooling unit cold accumulation system. The fluorine pump dual-circulation water cooling unit cold accumulation system comprises a cold accumulation heat exchanger and a condensation heat pipe array arranged in the external environment. The cold accumulation heat exchanger comprises a closed water tank with stored refrigerants and an evaporation heat pipe array arranged inside the closed water tank. The evaporation heat pipe array in the closed water tank serves as evaporation sections of heat pipes. A steam outlet in the top of the closed water tank is communicated with the condensation heat pipe array in the external environment through an evaporation pipe. The evaporation heat pipe array and the condensation heat pipe array are each formed by the multiple lines of spiral heat pipes in a vertically-arranged mode. Each line of spiral heat pipes include two spiral heat pipes which are wound. Liquid absorption core layers are arranged on the inner walls of the spiral heat pipes. A refrigerant pump and a control valve are arranged at a liquid returning pipe of the evaporation heat pipe array. A refrigerating compressor is further connected to an evaporation pipe of the evaporation heat pipe array in parallel. The fluorine pump dual-circulation water cooling unit cold accumulation system is small in size, natural cold sources of the external environment are stored in phase change refrigerants through the efficient heat conducting performance of the gravity heat pipes, and the latent heat of the refrigerants is effectively used.
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 gravity heat-pipe type water chiller 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 fluorine pump Two-way Cycle handpiece Water Chilling Units cold accumulation system, described handpiece Water Chilling Units is provided with the cold water pipes for cold water, comprise cold-storage heat-exchanger and the condensation heat pipe array being placed in external environment, described cold-storage heat-exchanger comprises the evaporation heat pipe array storing and have the airtight water tank of refrigerant He be located at airtight water tank inside, described airtight water tank is provided with import and outlet, and import and outlet 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, 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/or air-cooler 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, 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 is also connected with refrigerant buffer container, thus can prevent refrigerant freezing and expansion from overflowing.
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.When in water tank, refrigerant freezes excessive, can circulate in coil pipe in coil pipe layer machine room hot blast or other thermals source carry out heat exchange; When refrigerant in water tank also needs further cold-storage, coil pipe layer can be used as the effect that thermal insulation layer and heat-insulation layer play insulation jointly.
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, preferred 15cm.
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, thus can control cold accumulation system and whether access handpiece Water Chilling Units, also can access simultaneously.
Further, 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.When the reverse winding of two spiral heat pipes, there is between two pipes larger space and heat transfer area and heat transfer space, be conducive to the Uniform Flow of refrigerant.
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.
Accompanying drawing explanation
Fig. 1 is the structural representation of cold accumulation system of the present invention;
Fig. 2 is the principle schematic of cold accumulation system of the present invention;
Fig. 3 is the structural representation of spiral heat pipe of the present invention.
Wherein, handpiece Water Chilling Units 1, cold-storage heat-exchanger 2, condensation heat pipe array 3, airtight water tank 4, evaporation heat pipe array 5, cold water pipes 6, refrigerant surge tank 7, valve 8, spiral heat pipe 9, refrigeration compressor 10, refrigerated medium pump 11, blower fan 12.
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, fluorine pump Two-way Cycle handpiece Water Chilling Units cold accumulation system of the present invention, mainly comprise: cold-storage heat-exchanger and the condensation heat pipe array being placed in external environment, described cold-storage heat-exchanger comprises the evaporation heat pipe array storing and have the airtight water tank of refrigerant He be 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, water tank is also connected with refrigerant surge tank and cushions refrigerant freezing and expansion simultaneously.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, described condensation heat pipe array is also furnished with spray washing and/or air-cooler cools, and condensation heat pipe array relative evaporation heat pipe array higher thus formed gravitational difference; 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.
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.
Cold accumulating pond cold-storage has double-mode: when utilizing outdoor cold source, preferably adopts fluorine pump circulation natural cold source type to carry out cold-storage; When outdoor natural cooling source cannot use, compressor mode is adopted to carry out cold-storage.When the cold storage cooling by wind of fluorine pump Two-way Cycle is used for data center, the security of data center can not only be improved, make data center when power-off or main process equipment fault time still have cold supply, decrease data center to delay the possibility of machine, outdoor low temperature environment can also be made full use of, under the pattern of natural cooling source, carry out cold-storage, reach energy-conservation effect.
In addition, the cold storage cold side of fluorine pump Two-way Cycle can be air-cooled, also can be a kind of type of cooling utilizing cooling water, when using cooling water as low-temperature receiver, not only can realize cool storage function, the function of lasting cooling can also be realized, because the power consumption of cooling tower is also little, still can ensure to run, when outdoor temperature is low by UPS, continue to provide cold by cooling tower cooling, improve data center security further.
In such scheme, refrigerant directly can adopt water, or adopts the calcium chloride water that latent heat is large.Preferably, the aqueous solution of 20% ~ 40% Disodium sulfate decahydrate and 15% ~ 25% sodium acetate trihydrate can also be contained, 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 ~ 27 DEG C, thus temperature is higher again summer effectively can utilize ambient temperature 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 backflow of condensed water.
Claims (10)
1. a fluorine pump Two-way Cycle handpiece Water Chilling Units cold accumulation system, described handpiece Water Chilling Units is provided with the cold water pipes for cold water, it is characterized in that: comprise cold-storage heat-exchanger and the condensation heat pipe array being placed in external environment, described cold-storage heat-exchanger comprises the evaporation heat pipe array storing and have the airtight water tank of refrigerant He be located at airtight water tank inside, described airtight water tank is provided with import and outlet, and import and outlet 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; 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; 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.
2. fluorine pump Two-way Cycle handpiece Water Chilling Units cold accumulation system according to claim 1, is characterized in that: described condensation heat pipe array is also furnished with spray washing and/or air-cooler 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.
3. fluorine pump Two-way Cycle handpiece Water Chilling Units cold accumulation system according to claim 1, is characterized in that: described airtight water tank is also connected with refrigerant buffer container.
4. fluorine pump Two-way Cycle handpiece Water Chilling Units cold accumulation system according to claim 1, it is characterized in that described airtight water tank outer wall is provided with coil pipe layer, the outer of coil pipe layer is arranged with heat-insulation layer.
5. fluorine pump Two-way Cycle handpiece Water Chilling Units cold accumulation system according to claim 4, 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. fluorine pump Two-way Cycle handpiece Water Chilling Units 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. fluorine pump Two-way Cycle handpiece Water Chilling Units 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. fluorine pump Two-way Cycle handpiece Water Chilling Units 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. fluorine pump Two-way Cycle handpiece Water Chilling Units 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. fluorine pump Two-way Cycle handpiece Water Chilling Units 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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| CN201510600847.8A CN105135570A (en) | 2015-09-18 | 2015-09-18 | Fluorine pump dual-circulation water cooling unit cold accumulation system |
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| CN201510600847.8A CN105135570A (en) | 2015-09-18 | 2015-09-18 | Fluorine pump dual-circulation water cooling unit cold accumulation system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016545A (en) * | 2016-07-06 | 2016-10-12 | 广东海悟科技有限公司 | Power type heat pipe and air conditioner integrated machine |
| CN107014010A (en) * | 2017-03-21 | 2017-08-04 | 浙江大学 | A kind of double circulation family water-cooling system |
| CN107314568A (en) * | 2017-06-13 | 2017-11-03 | 贾欣 | A kind of direct-expansion type sea water source heat pump/free cold supply, hot systems for ship |
| CN112503663A (en) * | 2020-12-04 | 2021-03-16 | 依米康科技集团股份有限公司 | Double-power heat pipe system and control method |
| 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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| CN112503663A (en) * | 2020-12-04 | 2021-03-16 | 依米康科技集团股份有限公司 | Double-power heat pipe system and control method |
| 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: 20151209 |
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| RJ01 | Rejection of invention patent application after publication |