US20150241073A1 - Water cooling unit for conditioning systems - Google Patents
Water cooling unit for conditioning systems Download PDFInfo
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- US20150241073A1 US20150241073A1 US14/627,490 US201514627490A US2015241073A1 US 20150241073 A1 US20150241073 A1 US 20150241073A1 US 201514627490 A US201514627490 A US 201514627490A US 2015241073 A1 US2015241073 A1 US 2015241073A1
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- Prior art keywords
- batteries
- freecooling
- battery
- air
- water
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Classifications
-
- 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
- F24F5/0035—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 evaporation
-
- 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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/46—Component arrangements in separate outdoor units
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- 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
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
- F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/54—Free-cooling systems
Definitions
- the present invention relates to a water cooling unit for conditioning systems.
- conditioning units that use refrigerated water (fan coils)
- these conditioning units are supplied with a transfer fluid, typically water or water with the addition of glycol, which circulates from liquid refrigeration machines, of the so-called “chiller” type, i.e., water cooling unit.
- the hydraulic systems for these cooling machines have, on a same line, pumping means adapted to propel a transfer fluid through an exchanger for cooling the transfer fluid, which is none other than the evaporator of an associated water cooling refrigeration system.
- a similar type of system also has a free cooling device, known in the jargon as “freecooling”, for said transfer fluid.
- This free cooling device has the limitation that it is effective only in the presence of specific external climate conditions, i.e., only if the external air is cool enough to be able to refrigerate, in an adapted exchange battery, the water that is intended to enter the evaporator.
- the aim of the present invention is to provide a water cooling unit that is capable of obviating the cited limitations of the background art.
- an object of the invention is to provide a water cooling unit that is simple and economical, particularly as regards consumption.
- a water cooling unit for conditioning systems characterized in that it comprises, within a box-like container,
- an air precooling panel provided with a matrix of through holes, associated with means for cooling a stream of external air that passes through said matrix of holes,
- At least one pair of laterally adjacent heat exchange batteries for each pair of laterally adjacent batteries a first battery being for freecooling of the water entering an evaporator and the second battery being a condensation battery for a condenser of the same evaporator,
- FIG. 1 is a schematic view of a water cooling unit according to the invention
- FIG. 2 is a second schematic view of a system according to the invention, in a first embodiment thereof;
- FIG. 3A is a front view of a cooling unit according to the invention, in a second embodiment
- FIG. 3B is a schematic view of a detail of FIG. 3A ;
- FIG. 4 is a sectional side view of a part of the cooling unit of FIG. 3 ;
- FIG. 5 is a hydraulic diagram of the cooling unit of FIGS. 3A , 3 B and 4 ;
- FIG. 6 is a detailed diagram of a component of the hydraulic diagram of FIG. 5 .
- a water cooling unit according to the invention is designated generally by the reference numeral 10 .
- the cooling unit 10 comprises, within a box-like container 11 :
- an air precooling panel 12 provided with a matrix of through holes, associated with means 13 for cooling a stream of external air, designated by the arrow 14 in FIG. 1 , that passes through said matrix of holes,
- a pair 15 of laterally adjacent heat exchange batteries of the pair of laterally adjacent batteries, a first battery 16 is for freecooling of the water entering an evaporator 18 , which is part of the water cooling unit 10 , and a second battery 17 is a condensation battery for the evaporator 18 ,
- FIG. 1 A simplified diagram of the device 10 is shown clearly in FIG. 1 .
- the numeral 50 designates a compressor of a refrigeration circuit 51 .
- a first embodiment of the cooling unit 10 according to the invention which is to be understood as a nonlimiting example of the invention, shown schematically in FIG. 2 , there are, symmetrical with respect to the first ones, a second air precooling panel 23 , with corresponding associated cooling means 24 , and a corresponding second pair 25 of heat exchange batteries, a first battery 26 for freecooling of the water that enters the evaporator 18 of the air-conditioning system 19 , and the second battery 27 is for condensation for the evaporator 18 .
- Two additional symmetrical pairs of batteries, 28 and 29 respectively, are also present and are arranged so as to be inclined in a central position between the two pairs of batteries, the first one 15 and the second one 25 , which are instead arranged vertically; each one of the third and fourth pairs of batteries 28 and 29 has a corresponding first battery 30 and 31 that is directed downwardly and a second battery 32 and 33 that is directed upwardly; the pairs of batteries 28 and 29 are adapted to affect a stream of rising pre-cooled external air 35 , which also arrives from the precooling panel 12 or 23 .
- Each air precooling panel for example 12 but also 23 , comprises a honeycomb panel, the cells of which are open in the air passage direction.
- the means 13 and 24 for cooling the stream of external air that passes through the precooling panel 12 and 23 are constituted by
- an upper water dispenser 36 which is adapted to wet downward from above the corresponding honeycomb panel 12 and 23 ,
- a recirculation pump 38 for the rise of the air precooling water from the lower vessel 37 to the upper dispenser 36 .
- the upper dispenser 36 can be constituted for example by a spray head of the shower type, which is substantially as long as the precooling panel 12 and 23 .
- the upper dispenser 36 can also be of another type, depending on the requirements and technical needs.
- the first and second pairs of batteries 15 and 25 which are vertical, are struck directly by the stream of pre-cooled air 20 .
- the means 21 for exit out of the box-like container 11 for the heated air 22 that exits from the pairs of laterally adjacent heat exchange batteries comprise ventilation means, for example a series of fans 40 , which are arranged in the upper part of the boxlike container 11 and determine the movement of the air from the outside and through the pre-cooling panels and then through the pairs of batteries.
- the heated air 22 is emitted through corresponding grilles above the box-like body 11 .
- the first means for hydraulic connection between the water return 43 of the air-conditioning system 19 and the water inlet 44 of the freecooling batteries 16 , 26 , 30 and 31 comprise a series of ducts with nodes and branches adapted to supply in parallel all the freecooling heat exchange batteries 16 , 26 , 30 and 31 .
- the second means for hydraulic connection between the freecooling batteries 16 , 26 , 30 and 31 and the evaporator 18 likewise comprise a series of ducts with connectors adapted to convey in parallel the cooled water that exits from all the freecooling heat exchange batteries 16 , 26 , 30 and 31 toward the single duct 46 that enters the evaporator 18 .
- the evaporator 18 is arranged within the box-like container 11 , but it is to be understood that a constructive variation of the cooling unit 10 according to the invention in which the evaporator 18 is external with respect to the box-like container 11 is equally equivalent.
- cooling of the external air occurs by way of the evaporation of the water that descends on the precooling panel 12 and 23 .
- Heat exchange occurs in the honeycomb panel.
- the air is thus cooled.
- FIGS. 3A , 3 B and 4 show a second embodiment of the cooling unit according to the invention, designated therein by the reference numeral 110 .
- the cooling unit 110 comprises, within a box-like container 111 :
- the V-shaped configuration of the arrangement of the pairs of batteries refer to a configuration that can be shown schematically in a side view, as in FIG. 4 .
- the individual pairs of batteries 115 , 115 a , 115 b , 115 c are extended transversely to the box-like container 111 so as to occupy it almost entirely, or entirely, over its width, as clearly exemplified in FIG. 3A .
- the means 113 for cooling the external air stream that passes through the precooling panel 112 are shown schematically in FIG. 3B and comprise, as described above for the first embodiment:
- FIG. 5 shows schematically the hydraulic circuit 160 for cooling the water intended for a conditioning system 119 .
- the first means for hydraulic connection between the water return 143 of the air-conditioning system 119 and the water inlet 144 of the freecooling batteries 116 and 116 a in the figure, designated as freecooling battery assembly 161 comprise a series of ducts with nodes and branches adapted to supply in parallel all the freecooling heat exchange batteries 116 and 116 a.
- the second means for hydraulic connection between the assembly 161 of freecooling batteries 116 and 116 a and the evaporator 118 likewise comprise a series of ducts with connectors adapted to convey the cooled air that exits from the assembly 161 of heat exchange batteries for freecooling 116 , 116 a toward the single duct 146 that enters the evaporator 118 .
- FIG. 6 shows schematically the assembly 161 of freecooling batteries 116 , 116 a , 116 b , 116 c.
- the freecooling batteries 116 , 116 a , 116 b , 116 c are connected in parallel, with a single loading duct 171 and a single output duct 172 , between which the freecooling batteries are connected in parallel, conveniently arranged in pairs in front of each other so as to define a V-shaped mutual arrangement in a side view.
- the invention provides a device for optimizing the efficiency of a water cooling system that is simple and economical, both in terms of structure and in terms of consumption, since the precooling of the external air occurs by simple air-water heat exchange with evaporation of the latter.
- the invention provides a device for optimizing the efficiency of a water cooling system that has a reduced environmental impact with respect to the background art, since there is no resort to additional compressors or other electrically costly components.
- the materials used may be any according to requirements and to the state of the art.
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Secondary Cells (AREA)
Abstract
A water cooling unit for conditioning systems, comprising, within a box-like container,
-
- an air precooling panel, provided with a matrix of through holes, associated with means for cooling a stream of external air that passes through the matrix of holes,
- at least one pair of laterally adjacent heat exchange batteries, for each pair of laterally adjacent batteries a first battery being for freecooling of the water entering an evaporator and the second battery being a condensation battery for a condenser of the evaporator,
- means for the exit outside the box-like container of the heated air that exits from the at least one pair of laterally adjacent heat exchange batteries,
- first means for hydraulic connection between the water return of an air-conditioning system and the water inlet of the at least one freecooling battery, and
- second means for hydraulic connection between the at least one freecooling battery and the evaporator.
Description
- The present invention relates to a water cooling unit for conditioning systems.
- Currently, in order to cool an enclosed space by means of conditioning units that use refrigerated water (fan coils), these conditioning units are supplied with a transfer fluid, typically water or water with the addition of glycol, which circulates from liquid refrigeration machines, of the so-called “chiller” type, i.e., water cooling unit.
- The hydraulic systems for these cooling machines have, on a same line, pumping means adapted to propel a transfer fluid through an exchanger for cooling the transfer fluid, which is none other than the evaporator of an associated water cooling refrigeration system.
- A similar type of system also has a free cooling device, known in the jargon as “freecooling”, for said transfer fluid.
- This free cooling device has the limitation that it is effective only in the presence of specific external climate conditions, i.e., only if the external air is cool enough to be able to refrigerate, in an adapted exchange battery, the water that is intended to enter the evaporator.
- Combined devices that comprise water cooling units with integrated adiabatic cooling and combined devices that comprise water cooling units with integrated free cooling are also known.
- Although these devices are widespread and appreciated, they have additional costs in terms of energy consumption, whereas currently, in the opposite direction, there is an increasingly felt need to reduce the energy consumption required to cool a stream of water intended to flow through a climate control system.
- The aim of the present invention is to provide a water cooling unit that is capable of obviating the cited limitations of the background art.
- Within this aim, an object of the invention is to provide a water cooling unit that is simple and economical, particularly as regards consumption.
- This aim, as well as these and other objects that will become better apparent hereinafter, are achieved by a water cooling unit for conditioning systems, characterized in that it comprises, within a box-like container,
- an air precooling panel, provided with a matrix of through holes, associated with means for cooling a stream of external air that passes through said matrix of holes,
- at least one pair of laterally adjacent heat exchange batteries, for each pair of laterally adjacent batteries a first battery being for freecooling of the water entering an evaporator and the second battery being a condensation battery for a condenser of the same evaporator,
- means for the exit outside the box-like container of the heated air that exits from said at least one pair of laterally adjacent heat exchange batteries,
- first means for hydraulic connection between the water return of an air-conditioning system and the water inlet of a said freecooling battery, and
- second means for hydraulic connection between said at least one freecooling battery and said evaporator.
- Further characteristics and advantages of the invention will become better apparent from the description of two preferred but not exclusive embodiments of the water cooling unit according to the invention, illustrated by way of nonlimiting example in the accompanying drawings, wherein:
-
FIG. 1 is a schematic view of a water cooling unit according to the invention; -
FIG. 2 is a second schematic view of a system according to the invention, in a first embodiment thereof; -
FIG. 3A is a front view of a cooling unit according to the invention, in a second embodiment; -
FIG. 3B is a schematic view of a detail ofFIG. 3A ; -
FIG. 4 is a sectional side view of a part of the cooling unit of FIG. 3; -
FIG. 5 is a hydraulic diagram of the cooling unit ofFIGS. 3A , 3B and 4; -
FIG. 6 is a detailed diagram of a component of the hydraulic diagram ofFIG. 5 . - With reference to the figures, a water cooling unit according to the invention is designated generally by the
reference numeral 10. - The
cooling unit 10 comprises, within a box-like container 11: - an
air precooling panel 12, provided with a matrix of through holes, associated withmeans 13 for cooling a stream of external air, designated by thearrow 14 inFIG. 1 , that passes through said matrix of holes, - a
pair 15 of laterally adjacent heat exchange batteries; of the pair of laterally adjacent batteries, afirst battery 16 is for freecooling of the water entering anevaporator 18, which is part of thewater cooling unit 10, and asecond battery 17 is a condensation battery for theevaporator 18, - means 21 for the exit outside the box-
like container 11 of theheated air 22 that exits from thepair 15 of laterally adjacent heat exchange batteries, - first means for hydraulic connection between the water return from an air-
conditioning system 19 and the water inlet of thefirst freecooling battery 16, and - second means for hydraulic connection between the
first freecooling battery 16 and theevaporator 18. - A simplified diagram of the
device 10 is shown clearly inFIG. 1 . - In
FIG. 1 , thenumeral 50 designates a compressor of arefrigeration circuit 51. - In a first embodiment of the
cooling unit 10 according to the invention, which is to be understood as a nonlimiting example of the invention, shown schematically inFIG. 2 , there are, symmetrical with respect to the first ones, a secondair precooling panel 23, with corresponding associated cooling means 24, and a correspondingsecond pair 25 of heat exchange batteries, afirst battery 26 for freecooling of the water that enters theevaporator 18 of the air-conditioning system 19, and thesecond battery 27 is for condensation for theevaporator 18. - Two additional symmetrical pairs of batteries, 28 and 29 respectively, are also present and are arranged so as to be inclined in a central position between the two pairs of batteries, the first one 15 and the second one 25, which are instead arranged vertically; each one of the third and fourth pairs of
batteries first battery second battery 32 and 33 that is directed upwardly; the pairs ofbatteries external air 35, which also arrives from theprecooling panel - The position of the pairs of batteries as described is to be understood as a nonlimiting example of the invention.
- Each air precooling panel, for example 12 but also 23, comprises a honeycomb panel, the cells of which are open in the air passage direction.
- The means 13 and 24 for cooling the stream of external air that passes through the
precooling panel - an
upper water dispenser 36, which is adapted to wet downward from above thecorresponding honeycomb panel - a lower
collecting vessel 37, - a
recirculation pump 38 for the rise of the air precooling water from thelower vessel 37 to theupper dispenser 36. - The
upper dispenser 36 can be constituted for example by a spray head of the shower type, which is substantially as long as theprecooling panel - It is to be understood that the
upper dispenser 36 can also be of another type, depending on the requirements and technical needs. - The first and second pairs of
batteries pre-cooled air 20. - The
means 21 for exit out of the box-like container 11 for theheated air 22 that exits from the pairs of laterally adjacent heat exchange batteries comprise ventilation means, for example a series offans 40, which are arranged in the upper part of theboxlike container 11 and determine the movement of the air from the outside and through the pre-cooling panels and then through the pairs of batteries. - The heated
air 22 is emitted through corresponding grilles above the box-like body 11. - The first means for hydraulic connection between the water return 43 of the air-
conditioning system 19 and thewater inlet 44 of thefreecooling batteries heat exchange batteries - The second means for hydraulic connection between the
freecooling batteries evaporator 18 likewise comprise a series of ducts with connectors adapted to convey in parallel the cooled water that exits from all the freecoolingheat exchange batteries single duct 46 that enters theevaporator 18. - It is to be understood that the
evaporator 18 is arranged within the box-like container 11, but it is to be understood that a constructive variation of thecooling unit 10 according to the invention in which theevaporator 18 is external with respect to the box-like container 11 is equally equivalent. - In the
water cooling unit 10 according to the invention, therefore, cooling of the external air occurs by way of the evaporation of the water that descends on theprecooling panel - Heat exchange occurs in the honeycomb panel.
- The warm air, passing through the honeycomb panel sprayed with water, by simple contact and due to evaporation, transfers a large fraction of the heat contained therein.
- The air is thus cooled.
- At this point, the air thus processed, which is colder, provides a double benefit:
-
- in mechanical operation, i.e., the air that enters the condenser of the
evaporator 18, i.e., thesecond exchange batteries - in freecooling operation, since the air that strikes the
first batteries
- in mechanical operation, i.e., the air that enters the condenser of the
-
FIGS. 3A , 3B and 4 show a second embodiment of the cooling unit according to the invention, designated therein by thereference numeral 110. - The
cooling unit 110 comprises, within a box-like container 111: -
- two opposite
air precooling panels 112, arranged so as to affect the lateral faces of the box-like container 111 substantially along its entire length; eachprecooling panel 112 is provided, in a manner similar to what has been described above, with a matrix of through holes, and is associated withmeans 113 for cooling an external air stream, designated by thearrow 114 inFIGS. 3 and 3 a, which passes through the matrix of holes, - a series of
pairs batteries like container 111 and again two by two so as to define a V-shape in a lateral view, as shown inFIG. 4 ; - of each
pair first battery 116 is for freecooling of the water that enters anevaporator 118, which is part of thewater cooling unit 110, and thesecond battery 117 is for condensation for theevaporator 118, - means 121 for exit out of the box-
like container 111 of theheated air 122 that exits from eachpair 115 of laterally adjacent heat exchange batteries; the heated air exit means 121 are constituted for example by one or more fans, optionally arranged side-by-side above two pairs of batteries, for example 115 and 115 a, which are arranged in a V-shape; - first means for hydraulic connection between the water return from an air-
conditioning system 119 and the water inlet of the firstfreecooling batteries 116, and - second means for hydraulic connection between the first
freecooling batteries 116 and theevaporator 118.
- two opposite
- The V-shaped configuration of the arrangement of the pairs of batteries, for example the
first pairs batteries FIG. 4 . - The individual pairs of
batteries like container 111 so as to occupy it almost entirely, or entirely, over its width, as clearly exemplified inFIG. 3A . - The means 113 for cooling the external air stream that passes through the
precooling panel 112 are shown schematically inFIG. 3B and comprise, as described above for the first embodiment: -
- an
upper water dispenser 136, which is adapted to wet downward from above the correspondinghoneycomb panel 112, - a
lower collecting vessel 137, - a
recirculation pump 138 for the rise of the air precooling water from thelower vessel 137 to theupper dispenser 136.
- an
-
FIG. 5 shows schematically thehydraulic circuit 160 for cooling the water intended for aconditioning system 119. - In the
hydraulic circuit 160, the first means for hydraulic connection between thewater return 143 of the air-conditioning system 119 and thewater inlet 144 of thefreecooling batteries freecooling battery assembly 161, comprise a series of ducts with nodes and branches adapted to supply in parallel all the freecoolingheat exchange batteries - Between these points,
water return 143 andwater inlet 144 to theassembly 161 of freecooling batteries, it is possible optionally to interpose -
- a
safety assembly 162, with anexpansion vessel 163, atap 164, asafety valve 165, aflexible hose 166 and aventing element 167, - a
pump assembly 168, which comprises twopumps
- a
- The second means for hydraulic connection between the
assembly 161 offreecooling batteries evaporator 118 likewise comprise a series of ducts with connectors adapted to convey the cooled air that exits from theassembly 161 of heat exchange batteries forfreecooling single duct 146 that enters theevaporator 118. -
FIG. 6 shows schematically theassembly 161 offreecooling batteries - As clearly visible in
FIG. 6 , thefreecooling batteries single loading duct 171 and asingle output duct 172, between which the freecooling batteries are connected in parallel, conveniently arranged in pairs in front of each other so as to define a V-shaped mutual arrangement in a side view. - In practice it has been found that the invention achieves the intended aim and objects.
- In particular, the invention provides a device for optimizing the efficiency of a water cooling system that is simple and economical, both in terms of structure and in terms of consumption, since the precooling of the external air occurs by simple air-water heat exchange with evaporation of the latter.
- Furthermore, the invention provides a device for optimizing the efficiency of a water cooling system that has a reduced environmental impact with respect to the background art, since there is no resort to additional compressors or other electrically costly components.
- The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims; all the details may further be replaced with other technically equivalent elements.
- In practice, the materials used, so long as they are compatible with the specific use, as well as the contingent shapes and dimensions, may be any according to requirements and to the state of the art.
- The disclosures in Italian Patent Application No. PD2014A000037 from which this application claims priority are incorporated herein by reference.
Claims (7)
1. A water cooling unit for conditioning systems, comprising, within a box-like container,
an air precooling panel, provided with a matrix of through holes, associated with means for cooling a stream of external air that passes through said matrix of holes,
at least one pair of laterally adjacent heat exchange batteries, for each pair of laterally adjacent batteries a first battery being for freecooling of the water entering an evaporator and the second battery being a condensation battery for a condenser of the evaporator,
means for the exit outside the box-like container of the heated air that exits from said at least one pair of laterally adjacent heat exchange batteries,
first means for hydraulic connection between the water return of an air-conditioning system and the water inlet of said at least one freecooling battery, and
second means for hydraulic connection between said at least one freecooling battery and said evaporator.
2. The cooling unit according to claim 1 , wherein said air precooling panel comprises a honeycomb panel the cells of which are open in the air passage direction.
3. The cooling unit according to claim 2 , wherein said means for cooling the stream of external air that passes through said precooling panel are constituted by
an upper water dispenser, suitable to wet said honeycomb panel downward from above,
a lower collecting vessel,
a recirculation pump for the rise of the air precooling water from said lower vessel to said upper dispenser.
4. The cooling unit according to claim 1 , further comprising, within a box-like container:
two opposite air precooling panels, arranged so as to affect the lateral faces of the box-like container substantially along its entire length, each precooling panel being provided with a matrix of through holes and being associated with means for cooling an external air stream that flows through said matrix of holes,
a series of pairs of laterally adjacent heat exchange batteries,
of each pair of laterally adjacent batteries, a first battery is for freecooling of the water in input to an evaporator and a second battery is a condensation battery for the evaporator,
means for the exit outside the box-like container of the heated air that exits from each pair of laterally adjacent heat exchange batteries,
first means for hydraulic connection between the water return from an air-conditioning system and the water inlet of the first freecooling batteries, and
second means for hydraulic connection between the first freecooling batteries and said evaporator.
5. The cooling unit according to claim 4 , wherein said heat exchange battery pairs are arranged two by two so as to face each other in the direction of the length of the box-like container, and are arranged, again two by two, so as to define a V-shaped configuration.
6. The cooling unit according to claim 4 , wherein the individual pairs of batteries are extended transversely to the box-like container so as to occupy it almost entirely or entirely along its width.
7. The cooling unit according to claim 4 , wherein the freecooling batteries of a group of freecooling batteries are connected in parallel, with a single loading duct and a single output duct, between which said freecooling batteries are connected in parallel.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPD2014A000037 | 2014-02-21 | ||
ITPD20140037 | 2014-02-21 |
Publications (1)
Publication Number | Publication Date |
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US20150241073A1 true US20150241073A1 (en) | 2015-08-27 |
Family
ID=50624988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/627,490 Abandoned US20150241073A1 (en) | 2014-02-21 | 2015-02-20 | Water cooling unit for conditioning systems |
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US (1) | US20150241073A1 (en) |
EP (1) | EP2910864B1 (en) |
ES (1) | ES2880445T3 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106322599A (en) * | 2016-08-30 | 2017-01-11 | 哈尔滨研拓科技发展有限公司 | Self-processing cabinet air conditioner for condensate water |
US10488061B2 (en) | 2016-03-16 | 2019-11-26 | Inertech Ip Llc | System and methods utilizing fluid coolers and chillers to perform in-series heat rejection and trim cooling |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107327994A (en) * | 2017-07-10 | 2017-11-07 | 江苏省邮电规划设计院有限责任公司 | A kind of heat pipe air conditioner unit of Wind-cooling type with evaporation cooling function |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4567733A (en) * | 1983-10-05 | 1986-02-04 | Hiross, Inc. | Economizing air conditioning system of increased efficiency of heat transfer selectively from liquid coolant or refrigerant to air |
IT1317633B1 (en) * | 2000-03-16 | 2003-07-15 | Rc Group Spa | REFRIGERATOR GROUP WITH FREE-COOLING, SUITABLE TO OPERATE EVEN VARIABLE CONPORTA, SYSTEM AND PROCEDURE. |
JP2013119989A (en) * | 2011-12-07 | 2013-06-17 | Orion Machinery Co Ltd | Free cooling chiller |
-
2015
- 2015-02-19 ES ES15155733T patent/ES2880445T3/en active Active
- 2015-02-19 EP EP15155733.7A patent/EP2910864B1/en active Active
- 2015-02-20 US US14/627,490 patent/US20150241073A1/en not_active Abandoned
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10488061B2 (en) | 2016-03-16 | 2019-11-26 | Inertech Ip Llc | System and methods utilizing fluid coolers and chillers to perform in-series heat rejection and trim cooling |
US11415330B2 (en) | 2016-03-16 | 2022-08-16 | Inertech Ip Llc | System and methods utilizing fluid coolers and chillers to perform in-sertes heat rejection and trim cooling |
US11867426B2 (en) | 2016-03-16 | 2024-01-09 | Inertech Ip Llc | System and methods utilizing fluid coolers and chillers to perform in-series heat rejection and trim cooling |
CN106322599A (en) * | 2016-08-30 | 2017-01-11 | 哈尔滨研拓科技发展有限公司 | Self-processing cabinet air conditioner for condensate water |
Also Published As
Publication number | Publication date |
---|---|
EP2910864B1 (en) | 2021-04-21 |
ES2880445T3 (en) | 2021-11-24 |
EP2910864A1 (en) | 2015-08-26 |
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