CN101568782A - Heat exchanger with improved condensate removal - Google Patents
Heat exchanger with improved condensate removal Download PDFInfo
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- CN101568782A CN101568782A CNA2006800568244A CN200680056824A CN101568782A CN 101568782 A CN101568782 A CN 101568782A CN A2006800568244 A CNA2006800568244 A CN A2006800568244A CN 200680056824 A CN200680056824 A CN 200680056824A CN 101568782 A CN101568782 A CN 101568782A
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- heat exchanger
- heat
- air
- exchange tube
- stream
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
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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
- F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
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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
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/14—Collecting or removing condensed and defrost water; Drip trays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A heat exchanger includes an arrangement of refrigerant conveying heat exchange tubes and associated heat transfer fins and has an airflow inlet and an airflow outlet. A plurality of inlet guide vanes is disposed slightly upstream of the airflow inlet to the heat exchange tube arrangement so as to route incoming airflow through the heat exchange tube arrangement along a desired direction, in relation to the heat exchange tubes and associated fins, so as to improve drainage of accumulated condensate from the external surfaces of the heat exchange tubes and to enhance shedding of condensate from the surfaces of the heat transfer fins. Also, a plurality of outlet guide vanes can be dis posed slightly downstream of the airflow outlet from the heat exchange e tube arrangement.
Description
Technical field
[0001] present invention relates in general to be used to cool off the heat exchanger of air, and relate more specifically to provide the improvement that the condensate that accumulates on the heat-exchange tube outer surface on the outer surface with any heat transfer fin related with these heat-exchange tubes is removed.
Background technology
[0002] refrigerant vapor compression system is that the people is known in the art.Adopt the air regulator and the heat pump of refrigerant vapor compression cycle, be generally used for cooling off or cooling offers the air of the climate controlled zone of comfort of dwelling house, office building, hospital, school, dining room or other facility.Refrigerant vapor compression system also is usually used in cooling off air or other secondary media, as water or ethylene glycol solution, so that provide refrigerating environment for the F﹠B product in the in-house displaying case of supermarket, convenience store, grocery store, coffee shop, dining room and other food service.
[0003] common, these refrigerant vapor compression systems comprise compressor, condenser, expansion gear and the evaporimeter that is connected into the connection of cold-producing medium stream.Aforementioned basic refrigerant vapor compression system components is interconnected into closed refrigerant circuit by refrigerant line, and is arranged to consistent with the steam compression cycle that is adopted.Expansion gear, normally expansion valve or fixing hole metering device (throttle orifice or capillary) are arranged in the refrigerant line, this expansion gear with respect to cold-producing medium stream be arranged in the refrigerant loop be in vaporizer upstream and in the condenser location downstream.The liquid refrigerant that expansion gear operation will be in refrigerant line flows to evaporimeter from condenser is expanded to lower pressure and temperature.Refrigerant vapor compression system can fill any one in the various cold-producing mediums, comprises for example R-12, R-22, R-134a, R-404A, R-410A, R-407C, R717, R744 or other compressible fluid.
[0004] in many refrigerant vapor compression system, evaporimeter is a parallel-tubes heat exchanger, it has in the horizontal direction with a plurality of round heat-exchange tube parallel, the spaced apart relation longitudinal extension, these heat-exchange tubes are connected to each other by so-called U-shaped return bend at its respective end place, to form serpentine coil in each evaporimeter loop.In many cases, use the U-shaped structure to replace straight tube structure, because only need return bend, to form the snakelike refrigerant loop of evaporimeter in a side of U-shaped structure heat-exchange tube.Usually, adopt a plurality of serpentine evaporator loop, so that cold-producing medium is with the parallel mode flow further downstream.Particularly, in evaporator application, use a plurality of parallel refrigerant circuits, these parallel refrigerant circuits have identical structure or expand towards downstream in whole evaporimeter structure.One end of each serpentine coil (or loop) is connected to cold-producing medium circulation, thereby receives cold-producing medium stream from the cold-producing medium circulation, and the other end of each serpentine coil (or loop) is connected to the cold-producing medium circulation, thereby makes cold-producing medium stream turn back to the cold-producing medium circulation.The upstream of each serpentine coil receives the end and is connected to the cold-producing medium circulation by distributor or inlet header usually, and the downstream of each serpentine coil is returned the end and is connected to the cold-producing medium circulation by outlet header.
[0005] in some refrigerant vapor compression system, raceway coil is parallel flow heat exchanger (also claiming microchannel or mini-channel heat exchanger usually), and it has in the horizontal direction with a plurality of flat heat exchange tubes parallel, spaced apart relation longitudinal extension between a pair of isolated collector.In the case, for the multichannel evaporation structure, return bend is replaced by intermediate header or manifold chambers, and a plurality of parallel circuits is limited by a plurality of parallel heat transfer tubes in each passage.
[0006] in pipe or flat tube heat exchangers, external heat transfer fins is arranged between the heat-exchange tube usually, is used to strengthen hot transmission, the rigidity of structure and heat exchanger design compactness.Heat-exchange tube and heat-exchange fin for good and all are attached to one another, and pass through mechanical connection usually for pipe and plate fin heat exchanger, perhaps operate by furnace brazing usually for parallel flow heat exchanger.Heat-exchange tube can also have the element that strengthens internal heat transfer and structure.
[0007] when heat exchanger as the evaporimeter in the refrigerant vapor compression system during with the cooling air, the evaporimeter and go out and accumulate on the outer surface of these pipes and fin of flowing through from airborne moisture condensation from this air that the outer surface of the conveying pipe of refrigerant of this heat exchanger and associated fins flows through.Usually, accumulating in condensate on the outer surface of heat-exchange tube and associated fins flows gradually under the gravity effect and is discharged in the discharge dish that is arranged on below the heat exchanger.Yet, for many heat converter structures, especially have horizontally disposed and the heat exchanger of the flat tube of longitudinal extension in the horizontal direction, the condensate that accumulates on heat-exchange tube and the associated fins is not always discharged apace.
[0008] if the condensate that accumulates on the outer surface of heat-exchange tube and associated fins is too much, the overall performance of refrigerant vapor compression system will affect adversely.For example, be trapped in the increase that the too much condensate on the outer surface of heat-exchange tube can cause the evaporator air side pressure to be fallen, this makes fan power consumption increase and the heat transmission by heat-exchange tube reduces, thereby influences evaporator capacity unfriendly.Also have, because room air cycles through air handling system continuously in many air conditionings are used, even also be like this when cold-producing medium does not cycle through evaporator heat exchanger, thereby the condensate that accumulates on the outer surface of the heat-exchange tube of evaporimeter and associated fins may be retracted with being out of favour, and mode is by by through the evaporation again of the air of evaporimeter or carry secretly again.The condensate of this withdrawal even may be carried is got back in the conditioned space, and this has increased the humidity in the conditioned environment, and increases the possibility that the comfortableness to the occupant in the conditioned environment has a negative impact.
[0009] should be noted that the cooling heat exchanger of the air handling device of the air that adopts cold water or ethylene glycol solution cooling and dehumidifying to offer conditioned environment, all face the same problem that condensate blows away, this causes does not similarly wish the result.
Summary of the invention
[0010] provides a kind of evaporator heat exchanger, this evaporator heat exchanger has the device of approximate horizontal heat-exchange tube that extends and the related heat transfer fin of roughly vertically extending, this evaporator heat exchanger is provided with air conductance stream blade, be used to guide the outer surface of air stream, be beneficial to condensate and discharge from the outer surface of heat-exchange tube and related heat transfer fin through heat-exchange tube and related heat transfer fin.
[0011] in one embodiment, heat exchanger comprises: a plurality of heat-exchange tubes, these a plurality of heat-exchange tubes are arranged to parallel and longitudinal extension in the horizontal direction; A plurality of roughly vertical related heat transfer fin of extending; With a plurality of air conductance stream blades, these a plurality of air conductance stream blade arrangement are in the air side porch of heat-exchange tube and heat transfer fin device, be used for the guiding of air stream is entered heat exchange tube array, make air stream gather surperficial flowing along the condensate of each heat transfer fin more, discharge from the heat exchanger outer surface to promote condensate.Heat-exchange tube can be for example circular or flattened rectangular or flat elliptic cross section.In addition, can optionally arrange at least one separator, quickening the heat transfer surface air flowing stream from heat exchange tube array along fin partly, thereby promote that condensate flows out from heat exchange tube array with respect to heat exchange tube array.
[0012] in another embodiment, a plurality of air conductance stream blades can be arranged in the air outflow port place of heat exchange tube array.Outlet air conductance stream blade can be replenishing of intake air conductance stream blade or replace intake air conductance stream blade, flow out the air stream of heat exchange tube array with changed course, and also be similar to intake air conductance stream blade, the air stream of heat exchange tube array is flow through in influence.
[0013] in one embodiment, evaporator heat exchanger is the flat multitube parallel flow heat exchanger (being also referred to as microchannel or mini-channel heat exchanger usually) that has heat exchange tube array, and heat exchange tube array is roughly vertically-oriented and have the adjacent heat that is arranged between them and transmit wave-fin.In this structure, heat-exchange tube rather than plate fin provide the main condenser thing to discharge the surface.In a kind of embodiment of round tube and plate fin heat exchanger, heat-exchange tube roughly vertically arranges, and heat transfer fin is provided with shutter, to increase the condensate discharge path.For any incline structure of these two kinds of heat exchanger type also within the scope of the invention, and can have approximate horizontal and the vertical benefit of at least one in the heat-exchange tube orientation roughly.
[0014] in another embodiment, heat exchanger is the cooling heat exchanger of airhandling equipment, and it adopts cold water or ethylene glycol solution to cool off and dehumidify and offers the air of conditioned environment.
Description of drawings
[0015] below of the present invention, in the detailed description, will read with reference to the accompanying drawings and in conjunction with the accompanying drawings, in the accompanying drawings:
[0016] Fig. 1 is the schematic diagram that comprises as the refrigerant vapor compression system of the heat exchanger of evaporimeter;
[0017] Fig. 2 is the part sectional side view of first illustrative embodiments that is equipped with the evaporator heat exchanger of guide vane;
[0018] Fig. 3 is the part sectional side view of second illustrative embodiments that is equipped with the evaporator heat exchanger of guide vane;
[0019] Fig. 4 is the part sectional side view of another illustrative embodiments that is equipped with the evaporator heat exchanger of guide vane; With
[0020] Fig. 5 is the part sectional plain-view drawing of heat exchanger of Fig. 2 of 5-5 along the line intercepting, shows to be arranged in the guide vane row and at the separator of heat exchanger internal projection.
The specific embodiment
[0021] heat exchanger of the present invention here will be as evaporimeter, and the simplification air conditioning cycle refrigerant vapor compression system 100 schematically illustrated with Fig. 1 is connected.Although exemplary refrigerant steam compression cycle shown in Figure 1 is to simplify the air conditioning circulation, but should be understood that, heat exchanger of the present invention can be used to have the refrigerant vapor compression system of various designs, include but not limited to heat pump cycle, the economization circulation, circulation with string shaft type parts (as compressor) and heat exchanger, cooler circulates, again thermal cycle and comprise many other circulations of various selections and feature.Also have, will be appreciated that, although blow away phenomenon is that the evaporimeter that is combined in the refrigerant system of operating in the steam compression cycle is described, but adopt cooling of cold water or ethylene glycol solution and dehumidifying to offer the cooling heat exchanger of airhandling equipment of the air of conditioned environment, all face same problem and can similarly benefit from the present invention.
[0022] refrigerant vapor compression system 100 comprises by refrigerant line 102,104 and 106 and connects into compressor 105, condenser 110, expansion gear 120 and the function of the closed-loop refrigerant circuits heat exchanger 10 as evaporimeter.Compressor 105 is compressed to higher pressure at expulsion with cold-producing medium from low pressure of inspiration(Pi), and make this hot high pressure refrigerant vapor cycle through that cold-producing medium gas exhaust piping 102 enters and the heat-exchange tube by condenser 10, in this condenser 10, when warm refrigerant steam and cooling fluid (as surrounding air) carry out heat exchange, liquid and common cold is excessively lowered the temperature, is condensed into to this warm refrigerant steam, and this cooling fluid device fan 115 that is condensed blows from the heat-exchange tube of condenser 110 and flows through.High pressure liquid refrigerant leaves condenser 110, and begin liquid refrigerant line 104, to flow to evaporator heat exchanger 10 from this place, this liquid refrigerant passes expansion gear 120, in this expansion gear, this liquid refrigerant is expanded to lower pressure and temperature, to form refrigerant liquid/vapor mixture passes.
[0023] heat-exchange tube 40 of evaporator heat exchanger 10 is flow through in the swell refrigeration agent of lower pressure and lower temperature now, in these heat-exchange tubes, when this cold-producing medium and air to be cooled and that will dry usually carry out heat exchange, this cold-producing medium is evaporated and usually by overheated, this air to be cooled forces it to flow through with related heat transfer fin 50 from heat-exchange tube 40 by evaporator fan 15.Mainly be in the cold-producing medium of heat of steam dynamics state, flow through suction refrigerant line 106, be back to compressor 105 from evaporator heat exchanger 10.When the air stream that passes evaporator heat exchanger 10 flows through when carrying out heat exchange with the cold-producing medium that flows through from heat-exchange tube 40 from heat-exchange tube 40 and related heat transfer fin 50, air is cooled, flow through evaporator heat exchanger 10 and go out, and be collected on the outer surface of these heat-exchange tubes 40 and related heat transfer fin 50 from this airborne moisture condensation from this air that the outer surface of the conveying pipe of refrigerant 40 of evaporator heat exchanger 10 and heat transfer fin 50 flows through.Discharge dish 45 is located at below the evaporator heat exchanger 10, is used to collect the condensate of discharging from the outer surface of heat-exchange tube 40 and related heat transfer fin 50.
[0024] will be generally parallel flow heat exchanger 10 be described here with reference to the examples shown embodiment of the part of the heat exchanger 10 shown in the figure 2-4.Heat exchanger 10 comprises the heat exchange pipe loop device or restraints 12, this heat exchange pipe loop device or restraint the 12 a plurality of air conductances stream blades 60 that have the air inflow apertures at end, the upstream place that is in heat exchange pipe loop device 12 and be arranged to be associated with this heat exchange pipe loop device 12, these a plurality of air conductances stream blades 60 place the place of the upstream slightly of heat-exchange tube bundle 12 with respect to air stream.In the illustrative embodiments shown in Fig. 2 and 3, heat exchange tube arrangement 12 comprises a plurality of circular heat-exchange tube 40 that is arranged to parallel, each pipe extends on general horizontal direction along its longitudinal axis, and be connected to each other by U-shaped return bend (not shown) and another pipe, to form at least one snakelike loop.1/2 inch typically of the diameter of circular heat-exchange tube 40,3/8 inch or 7 millimeters.At least one coiled pipe loop of this of heat exchanger 10 has inlet end and outlet end, the inlet end becomes cold-producing medium stream to be connected to refrigerant line 104 communicatively by distributor or inlet header (not shown), be used for receiving cold-producing medium stream from the cold-producing medium circulation, outlet end becomes cold-producing medium stream to be connected to refrigerant line 106 communicatively by the outlet header (not shown), is used for cold-producing medium stream is back to the cold-producing medium circulation.
[0025] replace round tube, evaporator heat exchanger 10 can have the multi-channel flat tube 140 that for example has rectangle or oval cross section, and these multi-channel flat tubes 140 are arranged to the parallel spaced vertical setting of types, as shown in Figure 4.This multi-channel flat tube 140 is the along continuous straight runs longitudinal extension between a pair of isolated collector or manifold (not shown), be used for and distribute between these heat-exchange tubes 140 from the cold-producing medium that the cold-producing medium circulation receives, and be used for collecting cold-producing medium cold-producing medium is turned back to the cold-producing medium circulation from heat-exchange tube 140.Each flat multi-channel heat exchange tubes 140 can have for example 50 millimeters or littler width, 10-30 millimeter normally, and have about 2 millimeters or littler height.Each flat heat exchange tubes 140 can limit a plurality of parallel refrigerant flow channels 142, and these refrigerant flow channels can have circle, rectangle, trapezoidal, triangle or other cross section, quantitatively is about 10 to about 20 usually, the total length of their longitudinal extension pipes.Each passage provides refrigerant flowpath, and this flow path has relatively little area of section and has and is defined as four times the hydraulic diameter of cross section flow area after divided by " infiltration " girth, usually in about 200 microns-Yue 3 millimeters scope.Thereby the heat exchanger that has in the multi-channel tube that extends in parallel between the entrance and exit collector of heat exchanger has in the relatively large number purpose small flow area refrigerant flow path of extending between these two collectors.Sometimes, such multi channel heat exchanger structure also is called microchannel or mini-channel heat exchanger.
[0026] in conventional practice, in order to improve from heat-exchange tube 40, the air of 140 outer surface upper reaches over-heat-exchanger 10 and from heat-exchange tube 40, heat transmission between the cold-producing medium that flows through in 140, heat exchanger 10 is included in every group of pipe that is arranged in parallel 40, a plurality of external heat transfer fins 50,150 of extending between 140.Plate fin 50 can be smooth or waveform configuration, can have shutter, and usually mechanically or alternate manner be attached to the outer surface of adjacent heat-exchange tube 40 securely.Fin 150 has serpentine configuration, can have shutter or offset strips, forms rectangle, triangle or trapezoidal air passages usually, and usually at the outer surface of furnace brazing to adjacent flat heat-exchange tube 140.In both cases, between heat-exchange tube 40,140 and heat transfer fin 50,150, set up heat respectively by the heat conduction and transmit contact.Thereby, heat-exchange tube 40,140 outer surface and heat transfer fin 50,150 surface forms the external heat transfer surface together, this external heat transfer surface participates in the cold-producing mediums that flow in the heat-exchange tube 40,140 and the heat transmission flow through from the external heat transfer surface of heat exchanger between the air of this heat exchanger 10 interacts.External heat transfer fins 50,150 also provides the rigidity of structure of heat exchanger 10 and helps air flow redirection and alignment usually, to improve heat transfer characteristic.As indicated above, in the illustrative embodiments of the heat exchanger shown in Fig. 2-3 10, parallel by being arranged in, the isolated a plurality of plates of heat transfer fin 50 constitute, and these plates roughly extend between the heat-exchange tube 40 that approximate horizontal is extended vertically.
[0027] notices as preamble, in heat exchanger 10 operating period in the air refrigerating mode, condensate accumulates in heat-exchange tube 40,140 with related heat transfer fin 50, on 150 the outer surface, heat exchanger 10 or as the evaporimeter of refrigerant system 100 or all be air-cooled heat exchanger here as air processor.Also have, for the heat exchange round tubes 40 of approximate horizontal orientation, the condensate that accumulates on heat exchanger 10 outer surfaces is mainly discharged along plate fin 50 under gravity.On the other hand, if flat heat exchange tubes 140 approximate horizontal orientations, condensate is discharged the difficulty more that will become so, because condensate only can be discharged along the leading edge 152 and the trailing edge 154 of heat-exchange tube 140 under gravity, and most likely discharge from trailing edge 154, reason is that air flow amount promotes from leading edge 152 width of condensate along heat-exchange tube 140 to trailing edge 154.
[0028] for the heat exchange round tubes 40 of portrait orientation roughly, heat transfer fin 50 becomes the obstacle that stops condenser to be discharged, thereby, in order to make the feasible path that condensate is discharged, rather than the leading edge 52 of heat transfer fin 50 and trailing edge 54, in fin 50, make shutter or otch typically.Generally, being vertically oriented of flat heat exchange tubes 140 provides better condensate to discharge, because condensate is mainly discharged along vertically-oriented heat-exchange tube 140, if and in heat transfer fin design, comprised shutter or biasing member, then condensate would also be discharged by shutter in the heat transfer fin 150 or biasing member.In all cases, any obliquity of the heat-exchange tube bundle 12 of heat exchanger 10 can have any shortcoming and the advantage of approximate horizontal and vertical heat-exchange tube orientation.
[0029] in addition, the condensate amount that accumulates on the external heat exchange surface increases from top to bottom, thereby forms the more advantage that condensate blows away in heat exchanger 10 bottoms.In addition, in cooling medium section break time, as water or the ethylene glycol solution in the air-cooled heat exchanger of cold-producing medium in the steam compression refrigerant circulation 100 or air processor, air stream is still at the outer surface of circulation through over-heat-exchanger 10 simultaneously, the condensate that accumulates on the outer surface of heat exchanger 10 just can evaporate and enter once more air stream again, or even may be carried to the downstream of air conduit and enter conditioned environment.This obviously is undesirable, because may face water leakage problem and uncomfortable situation in the climate controlled indoor environment.In addition, be lower than freezing point if temperature drops to, the condensate that accumulates on the outer surface of heat exchanger 10 can cause freezing.
[0030] thereby, need to remove condensate from the outer surface of heat exchanger 10 effectively.Discharge from the outer surface of circular heat-exchange tube 40 or flat heat exchange tubes 140 for the ease of the condensate that gathers, a plurality of guide vanes are arranged to and these heat-exchange tube operative association, pass through heat exchange tube arrangement 12 will guide air stream along the direction of expectation.Be arranged in heat exchange tube arrangement 12 slightly inlet guide vance 60 effect of upstream be that guiding enters air and flows through heat exchange tube arrangement 12 along desired directions.Each inlet guide vance 60 comprises and extends the vertical slender member cross heat exchange tube arrangement 12 inlets that this vertical slender member forms certain angle of attack with respect to entering air stream, to promote to enter air stream along desired orientation.
[0031] in the illustrative embodiments that Fig. 2 described, inlet guide vance 60 makes essentially horizontally to guide when not needing to strengthen the condensate removal to enter air stream with the alignment of parallel spaced relation.In the case, airflow direction is roughly constant, but because the potential lower power consumption of air stream streaming and relevant fan 15 can obtain some benefits.Similarly, in illustrative embodiments shown in Figure 4, inlet guide vance 60 is with the alignment of parallel spaced relation, thereby can enter air stream along the upper surface and the guiding of lower surface approximate horizontal ground of each flat heat exchange tubes 140, each flat heat exchange tubes 140 is with the direction horizontal expansion of approximate horizontal.
[0032] yet, in illustrative embodiments shown in Figure 3, inlet guide vance 60 is with the alignment of parallel spaced relation, make and to enter air stream along the downward direction guiding, this forms certain angle of attack with respect to entering air stream, enters the air circulation and aligns with gravity direction more downwards and force and enter air stream towards discharge dish 45 to force.Similarly, in the flat heat exchange tubes embodiment of heat exchanger 10, no matter whether the axis of pitch of each flat multi-channel heat exchange tubes 140 of heat exchange tube arrangement 12 shown in Figure 4 is with respect to horizontal level angled downwards (trailing edge of each flat tube 140 is arranged downwards from its leading edge) (this has instruction during transferring the common unsettled international patent application No.PCT/US06/ (sequence number is waited to specify) (proxy number 210_1042PCT) that is entitled as " MULTI-CHANNEL HEAT EXCHANGERWITH IMPROVED CONDENSATE DRAINAGE " of commonly assigned person Carrier Corporation), inlet guide vance 60 also can be downward-sloping a little along the direction of air stream, makes to guide to enter the upper and lower outer surface that air stream is roughly parallel to heat-exchange tube 140 and flow.Be directed of the improvement of downward air conductance refrigeration condensate, because the shearing force that the momentum that is flowed by air produces has the component that aligns with gravity and can condensate be discharged in the discharge dish 45 assisted gravity from the outer surface outflow of heat exchange tube arrangement 12.The condensate that reduces on the outer surface of heat exchange tube arrangement 12 can promote that better pressure drop and fan power consumption are transmitted, reduced to heat, the minimizing condensate blows away the possibility with relevant leakage and uncomfortable problem, improve the operation of air velocity degree and reduce the possibility that a large amount of frosts gather.Guide vane 60 can have multiple profile along airflow direction, as rectangular flat plate, has the flat of round edge, has the flat of ever-reduced thickness, aerofoil profile and many other profiles.
[0033] in a kind of embodiment of heat exchanger 10, inlet guide vance 60 is adjustable on angle, makes to enter the air circulation to passing through heat exchanger 10 according to wishing that angle makes.For example, each guide vane 60 can be around pivoting by its rear end, its front end or the axis of wherein striding, and makes to discharge according to needed condensate to improve the angle of attack of regulating this guide vane with respect to the stream that enters air.For example, this adjusting can be that two positions is regulated, and multiposition is regulated or regulated continuously.As indicated above, those skilled in the art will recognize that the corresponding adjusting angle that application and operating condition need.
[0034] for example; during the time period that refrigerant system is shut down; simultaneously air stream is still blown to flow through from evaporator heat exchanger and is entered the conditioned environment; will wish that by the pivot guide vane air flow redirection being become more gathers surperficial flowing along condensate; remove thereby improve condensate, evaporate again or be entrained to again in the air stream to prevent condensate.On the other hand, under dried relatively condition, during normal running, do not need condensate to remove and strengthen, so guide vane preferably will remain on their initial position.
[0035] in addition, a plurality of outlet guide vanes 70 are arranged to heat exchange tube arrangement 12 operative association and are placed in the downstream slightly of the outlet of heat exchange tube arrangement 12.Each outlet guide vanes 70 comprises extends the vertical slender member that crosses heat exchange tube arrangement 12 outlets in the horizontal direction.Outlet guide vanes 70 effects are to leave the air stream of heat exchange tube arrangement 12 along the direction changed course of expectation, and are similar to inlet guide vance 60, and influence is by the upstream airflow of heat exchange tube array.Outlet guide vanes 70 can be used in combination with inlet guide vance 60 or use separately.
[0036] in addition, in some cases, guide vane can provide two additional benefits.One of them is that at least a portion condensate that will be blown away by the evaporator external from the air flue downstream alters course towards the discharge dish.This will allow the operation under the higher airflow degree and be avoided the water leakage problem.Another benefit is relevant with the streaming of the air stream that enters evaporator heat exchanger, especially when guide vane is in the normal position, can improves system effectiveness and reduce fan power consumption.
[0037] with reference now to Fig. 5, remove the condensate that gathers in order further to be beneficial to from the outer surface of heat-exchange tube 40, separator 80 can be arranged to and guide vane 60 row operative association, thereby makes and can locally quicken along the air stream on the surface of heat transfer fin 50.In the specific embodiment shown in Figure 5, a plurality of separators 80 were arranged to before entering heat exchange tube array 12 or are related with regional area at the entrance area place of heat exchange tube array 12, these regional areas experience or estimate that having too much condensate gathers.Particularly, separator 80 can be arranged in heat exchange tube array 12 upstream local or penetrate into the entrance area of heat exchange tube array 12 a little.The inside of separator 80 also can be used for the selection area of local changed course air stream with the surface of bump heat transfer fin 50, gathers the outflow of condensate and prevents that the local excessive condensate from gathering with further promotion, for example in the minimum zone of refrigerant temperature.
[0038] though the present invention shown in the accompanying drawings, and by this invention being specifically described with reference to these preference patterns shown in the drawings, but those skilled in the art are to be understood that, can carry out the various changes of details, and not depart from the spirit and scope of the present invention that are defined by the claims.
Claims (18)
1. a heat exchanger is used for cooling off the air stream that passes through from this heat exchanger, and it comprises:
Pipe and fin heat exchanger device, it comprises many heat-exchange tubes transporting cooling medium and is in a plurality of heat transfer fin of thermally conductive relation with described heat-exchange tube; With
A plurality of air conductance stream blades of at least one row, this at least one row's a plurality of air conductances stream described heat-exchange tubes of blade arrangement Cheng Yuzhi and the air stream of heat transfer fin device are associated, and discharge with the condensate on the surface that strengthens described heat-exchange tube and heat transfer fin.
2. heat exchanger according to claim 1 is characterized in that: a plurality of air conductance stream blade arrangement of described at least one row are in the porch of described pipe and fin heat exchanger device.
3. heat exchanger according to claim 1 is characterized in that: a plurality of air conductance stream blade arrangement of described at least one row are in the exit of described pipe and fin heat exchanger device.
4. heat exchanger according to claim 1, it is characterized in that: a plurality of air conductance stream blades of described at least one row comprise the parallel spaced air conductance stream blade of vertical setting of types, and each blade longitudinally extends through air flowing stream from described heat-exchange tube and heat transfer fin device in the horizontal direction.
5. heat exchanger according to claim 1 is characterized in that: each guide vane of described at least one row's a plurality of air conductances stream blades has the flat that is selected from flat, has round edge and a kind of in the profile of one of flat that airflow direction thickness reduces and aerofoil profile.
6. heat exchanger according to claim 1, it is characterized in that: each guide vane of a plurality of air conductance stream blades of described at least one row extends downwards with respect to horizontal direction with acutangulating, and this guide vane is the downstream edge that extends to this guide vane from the upstream edge of this guide vane with respect to air stream.
7. heat exchanger according to claim 1 is characterized in that: described heat exchanger comprises the air cooling evaporimeter in the refrigerant vapor compression system.
8. heat exchanger according to claim 1 is characterized in that: described heat exchanger comprises the air-cooled heat exchanger of air processor.
9. heat exchanger according to claim 1 is characterized in that: the described heat-exchange tube refrigerant conveying fluid in the described heat-exchange tube of described heat exchanger and the heat transfer fin device.
10. heat exchanger according to claim 1 is characterized in that: described heat-exchange tube transporting water or ethylene glycol solution in the described heat-exchange tube of described heat exchanger and the heat transfer fin device.
11. heat exchanger according to claim 1 is characterized in that: the described heat-exchange tube and the heat transfer fin device of described heat exchanger comprise round tube and plate fin heat exchanger.
12. heat exchanger according to claim 1 is characterized in that: the described heat-exchange tube of described heat exchanger and heat transfer fin device comprise flat multi-channel tube and wave-fin heat exchanger.
13. heat exchanger according to claim 1, it is characterized in that: also comprise at least one separator, this at least one separator be arranged to described at least one air conductance stream blade row and described pipe and fin heat exchanger device at least one operative association, be used to quicken the to flow through air of described regional area is to promote that gathering condensate flows out.
14. heat exchanger according to claim 13 is characterized in that: described at least one separator is arranged at least one regional area that is associated with condensate discharge problem.
15. heat exchanger according to claim 1 is characterized in that: a plurality of air conductance stream blades of described at least one row can be with respect to pivoted.
16. heat exchanger according to claim 14 is characterized in that: a plurality of air conductance stream blades of described at least one row have horizontal level and at least one flows angled position with respect to entering air.
17. heat exchanger according to claim 16 is characterized in that: described at least one row's a plurality of air conductances stream blades have and a plurality ofly flow angled position with respect to entering air.
18. heat exchanger according to claim 1 is characterized in that: pipe is arranged such that with the fin heat exchanger device that transfer pipes becomes vertically, the alignment of level or inclination.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2006/049291 WO2008079133A1 (en) | 2006-12-26 | 2006-12-26 | Heat exchanger with improved condensate removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101568782A true CN101568782A (en) | 2009-10-28 |
Family
ID=39562806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800568244A Pending CN101568782A (en) | 2006-12-26 | 2006-12-26 | Heat exchanger with improved condensate removal |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20100107675A1 (en) |
| EP (1) | EP2097696A4 (en) |
| CN (1) | CN101568782A (en) |
| WO (1) | WO2008079133A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102917837A (en) * | 2010-06-03 | 2013-02-06 | 大金工业株式会社 | Oil cooling device |
| CN104930760A (en) * | 2015-06-04 | 2015-09-23 | 阮积恩 | Condenser capable of improving condensing efficiency |
| CN106196846B (en) * | 2015-04-30 | 2020-09-08 | 青岛海尔智能技术研发有限公司 | Refrigerator with a door |
| CN112097442A (en) * | 2019-06-18 | 2020-12-18 | 青岛海尔智能技术研发有限公司 | Airflow dehumidification module for refrigeration and freezing device and refrigeration and freezing device |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471452B (en) * | 2009-03-17 | 2016-01-20 | 日本轻金属株式会社 | The discharge structure of corrugated fin-type heat exchanger |
| US20110232313A1 (en) * | 2010-03-24 | 2011-09-29 | General Electric Company | Chiller Condensate System |
| JP2013528776A (en) | 2010-05-28 | 2013-07-11 | マーロー インダストリーズ、インコーポレイテッド | System and method for thermoelectric personal comfort control bedding |
| CN103542510A (en) * | 2012-07-17 | 2014-01-29 | 李耀强 | Air conditioner free of water dripping |
| WO2014022419A1 (en) | 2012-07-30 | 2014-02-06 | Marlow Industries, Inc. | Thermoelectric personal comfort controlled bedding |
| JP6018957B2 (en) * | 2013-03-12 | 2016-11-02 | 三菱電機株式会社 | Air conditioner for vehicles |
| US20150083382A1 (en) * | 2013-09-24 | 2015-03-26 | Zoneflow Reactor Technologies, LLC | Heat exchanger |
| US9433891B2 (en) | 2014-02-25 | 2016-09-06 | Dennis McRae | Personal dehumidification system |
| ES2815548T3 (en) | 2014-03-21 | 2021-03-30 | Veotec Americas LLC | Manufacturing method of an air separator system |
| US20170158025A1 (en) * | 2015-12-02 | 2017-06-08 | Carrier Corporation | Heating, ventilation, air conditioning and refrigeration system with dehumidification |
| IT201700025518A1 (en) * | 2017-03-08 | 2018-09-08 | Equoclima Srl | WALL RADIANT COOLING DEVICE |
| US11022382B2 (en) | 2018-03-08 | 2021-06-01 | Johnson Controls Technology Company | System and method for heat exchanger of an HVAC and R system |
| US11236951B2 (en) | 2018-12-06 | 2022-02-01 | Johnson Controls Technology Company | Heat exchanger fin surface enhancement |
Family Cites Families (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2296530A (en) * | 1942-09-22 | Air conditioning system | ||
| US2899802A (en) * | 1959-08-18 | Room air conditioning apparatus having | ||
| US2150505A (en) * | 1935-04-19 | 1939-03-14 | Auditorium Conditioning Corp | Air conditioner |
| US2878652A (en) * | 1956-11-29 | 1959-03-24 | David M Comb | Ice-skating rink |
| US2952993A (en) * | 1957-12-13 | 1960-09-20 | Carrier Corp | Air conditioner |
| US3217798A (en) * | 1962-12-05 | 1965-11-16 | American Radiator & Standard | Heat exchanger |
| US3759050A (en) * | 1972-02-24 | 1973-09-18 | Modine Mfg Co | Method of cooling a gas and removing moisture therefrom |
| US3750418A (en) * | 1972-03-20 | 1973-08-07 | Borg Warner | Evaporator and condensate collector arrangement for refrigeration apparatus |
| USRE28343E (en) * | 1972-12-04 | 1975-02-25 | Liquid-vapor cycle air-conditiom system | |
| US3882690A (en) * | 1973-09-28 | 1975-05-13 | Carrier Corp | Heat exchange assembly |
| US4178770A (en) * | 1978-04-24 | 1979-12-18 | Econo-Cooler, Inc. | Cold air flow control apparatus |
| US4187090A (en) * | 1978-09-29 | 1980-02-05 | United Technologies Corporation | Heat exchanger water collection system |
| US5279360A (en) * | 1985-10-02 | 1994-01-18 | Modine Manufacturing Co. | Evaporator or evaporator/condenser |
| US4998580A (en) * | 1985-10-02 | 1991-03-12 | Modine Manufacturing Company | Condenser with small hydraulic diameter flow path |
| US4723419A (en) * | 1986-08-07 | 1988-02-09 | American Standard Inc. | Outdoor heat exchanger section |
| KR940002338B1 (en) * | 1991-03-01 | 1994-03-23 | 전 일 | Purification apparatus of waste water |
| US5111876A (en) * | 1991-10-31 | 1992-05-12 | Carrier Corporation | Heat exchanger plate fin |
| US5261946A (en) * | 1992-02-11 | 1993-11-16 | La-Man Corporation | Air line vapor trap with air-warming system |
| US5341650A (en) * | 1992-03-13 | 1994-08-30 | Kabushiki Kaisha Toshiba | Air conditioning apparatus having a plurality of inlets for taking in indoor air at a plurality of portions of main body thereof |
| US5533357A (en) * | 1995-02-15 | 1996-07-09 | Carrier Corporation | Air conditioning apparatus |
| US5826649A (en) * | 1997-01-24 | 1998-10-27 | Modine Manufacturing Co. | Evaporator, condenser for a heat pump |
| US5966959A (en) * | 1998-03-09 | 1999-10-19 | American Standard Inc. | Condensate drain pan arrangement with positive slope |
| KR100297189B1 (en) * | 1998-11-20 | 2001-11-26 | 황해웅 | High efficiency modular OEL heat exchanger with heat transfer promoting effect |
| US6439300B1 (en) * | 1999-12-21 | 2002-08-27 | Delphi Technologies, Inc. | Evaporator with enhanced condensate drainage |
| KR100445467B1 (en) * | 2001-04-20 | 2004-08-21 | 주식회사 엘지이아이 | Indoor unit for air conditioner |
| JP4109444B2 (en) * | 2001-11-09 | 2008-07-02 | Ｇａｃ株式会社 | Heat exchanger and manufacturing method thereof |
| US6892551B2 (en) * | 2002-09-26 | 2005-05-17 | Fujitsu General Limited | Air conditioner |
| US6889759B2 (en) * | 2003-06-25 | 2005-05-10 | Evapco, Inc. | Fin for heat exchanger coil assembly |
| US7469547B2 (en) * | 2004-09-09 | 2008-12-30 | Siemens Building Technologies, Inc. | Arrangement for detecting the position of a damper blade using a wireless communication sensor |
| US20060201162A1 (en) * | 2005-03-11 | 2006-09-14 | Hsieh Hsin-Mao | Dehumidifying device |
| US7669641B2 (en) * | 2006-01-20 | 2010-03-02 | Carrier Corporation | Method and system for vertical coil condensate disposal |
-
2006
- 2006-12-26 EP EP06846059A patent/EP2097696A4/en not_active Withdrawn
- 2006-12-26 WO PCT/US2006/049291 patent/WO2008079133A1/en active Application Filing
- 2006-12-26 CN CNA2006800568244A patent/CN101568782A/en active Pending
- 2006-12-26 US US12/520,938 patent/US20100107675A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102917837A (en) * | 2010-06-03 | 2013-02-06 | 大金工业株式会社 | Oil cooling device |
| CN106196846B (en) * | 2015-04-30 | 2020-09-08 | 青岛海尔智能技术研发有限公司 | Refrigerator with a door |
| CN104930760A (en) * | 2015-06-04 | 2015-09-23 | 阮积恩 | Condenser capable of improving condensing efficiency |
| CN112097442A (en) * | 2019-06-18 | 2020-12-18 | 青岛海尔智能技术研发有限公司 | Airflow dehumidification module for refrigeration and freezing device and refrigeration and freezing device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008079133A1 (en) | 2008-07-03 |
| EP2097696A1 (en) | 2009-09-09 |
| US20100107675A1 (en) | 2010-05-06 |
| EP2097696A4 (en) | 2012-08-15 |
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