US20220155000A1 - Condensate recovery from remote cooling units - Google Patents
Condensate recovery from remote cooling units Download PDFInfo
- Publication number
- US20220155000A1 US20220155000A1 US17/496,844 US202117496844A US2022155000A1 US 20220155000 A1 US20220155000 A1 US 20220155000A1 US 202117496844 A US202117496844 A US 202117496844A US 2022155000 A1 US2022155000 A1 US 2022155000A1
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- United States
- Prior art keywords
- chiller
- conduit
- suction
- pan
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 78
- 238000011084 recovery Methods 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000000110 cooling liquid Substances 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 16
- 239000003595 mist Substances 0.000 claims description 4
- 238000007664 blowing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- F25D15/00—Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices
-
- 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
- F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
- F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
- F25D2321/145—Collecting condense or defrost water; Removing condense or defrost water characterised by multiple collecting pans
-
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/14—Refrigerator multi units
Definitions
- This disclosure relates to the field of cooling equipment, and in particular cooling systems comprising a chilling apparatus connected to a plurality of remote cooling units.
- a common cooling system is provided by a chiller which removes heat from a cooling liquid, which liquid is then circulated to one or more remotely located coolers where it passes through a heat exchanger coil and then returns to the chiller to be cooled again.
- a fan creates an air stream through the coil and the air passing through the cooled coil is cooled and cools the room or enclosure where the heat exchanger is located.
- Such systems can be installed permanently in a building or the like, or can be portable for temporary use.
- Portable systems typically include a chiller unit to cool the liquid, a pump to pump the cooled liquid, and a plurality of remote cooler units connected by hoses. Depending on the situation, a portable chiller unit can be connected to several remote cooler units by hoses that are 200-300 feet long.
- the present disclosure provides a portable cooling system that overcomes problems in the prior art.
- drip water condenses out of the air onto the coil and drips into a pan.
- this drip water is simply funnelled to a drain, however in portable systems this drip water or condensate must be gathered in a drip pan or the like, and in many situations where there is no convenient drain the drip pans must periodically be emptied manually.
- the present disclosure provides a cooling system comprising a chiller operative to remove heat from a cooling liquid passing through the chiller from a chiller inlet to a chiller outlet.
- a plurality of remote cooling units each comprises a heat exchanger coil and a fan operative to blow air through the heat exchanger coil, a drip pan configured to receive drip water that condenses on an exterior of the heat exchanger coil, a cooling conduit adapted for connection to the chiller outlet and a coil inlet of the heat exchanger coil, a return conduit adapted for connection to the chiller inlet and a coil outlet of the heat exchanger coil, and a suction conduit connected at an input end thereof to receive water from a pan outlet of the drip pan.
- a liquid pump is operative to circulate the cooling liquid through the chiller and from the chiller outlet to each remote cooling unit and back to the chiller inlet, and a suction pump connected at a suction port of the suction assembly to an output end of each suction conduit and operative to draw drip water from each drip pan through each of the suction conduits and deposit the drip water into a collector.
- the present disclosure provides a method of providing cooling to a plurality of neighboring enclosures.
- the method comprises providing a chiller operative to remove heat from a cooling liquid passing through the chiller from a chiller inlet to a chiller outlet; providing a remote cooling unit in each enclosure, each remote cooling unit comprising a heat exchanger coil; circulating the cooling liquid through the chiller and from the chiller outlet through the heat exchanger coil of each remote cooling unit and back to the chiller inlet; in each remote cooling unit, collecting drip water that condenses on an exterior of each heat exchanger coil; connecting an input end of a suction conduit to receive drip water collected in each remote cooling unit; and providing a suction at an output end of the suction conduit and drawing drip water from each remote cooling unit into a collector.
- the present disclosure provides a system and method for conveniently collecting drip water that drips from the heat exchanger coils of a plurality of remote cooling units and conveying the collected drip water from each remote cooling unit to a centrally located collector.
- the disclosed system and method removes the need, especially in portable systems, for periodic attendance to empty and dispose of the drip water that collects at each of the remote cooling units.
- FIG. 1 is a schematic top view of an embodiment of the system of the present disclosure installed in a plurality of neighboring enclosures;
- FIG. 2 is a schematic top view of the embodiment of FIG. 1 showing a single remote cooling unit
- FIG. 3 is a schematic sectional side view of a float operated valve on each pan outlet operative open the pan outlet when the drip water level rises to a selected level while maintain the drip water level at all times above the pan outlet to prevent air from entering the pan outlet into the suction conduit.
- FIGS. 1-3 schematically illustrate an embodiment of a cooling system 1 of the present disclosure.
- the system comprises a chiller 3 operative to remove heat from a cooling liquid passing through the chiller from a chiller inlet 3 A to a chiller outlet 3 B.
- a plurality of remote cooling units 5 is provided for operative connection to the chiller 3 to cool locations remote from the chiller 3 .
- the chiller 1 can be mounted on a trailer 7 or like vehicle and moved to a location adjacent to a number of different neighboring enclosures 9 , typically rooms, separate buildings or a combination of like enclosures where cooling is desired.
- the remote cooling units 5 as well as the required pumps described below, can be carried on the trailer as well and the remote cooling units can moved into position in the desired enclosures 9 and connected to the chiller 3 by a conduit assembly 11 .
- Each remote cooling unit 5 comprises a heat exchanger coil 13 and a fan 15 operative to blow air through the heat exchanger coil 13 .
- a drip pan 17 under the heat exchanger coil 13 is configured to receive drip water 19 that condenses on an exterior of the heat exchanger coil 13 and forms drops 19 A as seen in FIG. 3 that fall into the drip pan 17 .
- the remote cooling units 5 can be configured with larger or smaller heat exchanger coils 13 to provide remote cooling units 5 suitable for varying cooling capacities.
- Each conduit assembly 11 comprises a cooling conduit 21 adapted for connection to the chiller outlet 3 B and a coil inlet 13 A of the heat exchanger coil 13 , a return conduit 23 adapted for connection to the chiller inlet 3 A and a coil outlet 13 B of the heat exchanger coil, and a suction conduit 25 connected at an input end 25 A thereof to receive water from a pan outlet 27 of the drip pan 17 .
- a liquid pump 29 is operative to circulate cooling liquid LQ through the chiller 3 and from the chiller outlet 3 B to each remote cooling unit 5 and back to the chiller inlet 3 A.
- a suction pump 31 is connected at a suction port 31 A of the suction pump to an output end 25 B of each suction conduit 25 .
- the suction pump 31 creates a suction at the suction port 31 A that is operative to draw drip water 19 from each drip pan 17 through each of the suction conduits 25 and deposit the drip water 19 into a collector 33 .
- each cooling conduit 21 is first insulated to preserve the cool temperature of the cooling liquid LQ as it passes from the chiller to the remote cooling unit 5 .
- the cooling conduit 21 , the return conduit 23 , and the suction conduit 25 are enclosed together in a conduit cover, such as by wrapping a fabric or the like around the conduits, so the conduit assembly 11 is a single lengthy and flexible component that is readily rolled up for transport and then unrolled for deployment.
- a number of conduit assemblies 11 can be provided with different lengths, or all can be the same length, which can be typically 250 or more feet long to provide a wide reach from the chiller 3 to the farthest remote cooling units 5 .
- the suction pump 31 is a self-priming suction type water pump that pumps drip water 19 from each drip pan 17 through the suction conduits 25 and deposits the drip water 19 into the collector 33 . It is contemplated that a mist maker 35 can be provided that is operative to transform the drip water 19 in the collector 33 into a mist 37 directed to cool the chiller 3 .
- the suction pump 31 can be configured to operate constantly, with the pan outlet open so that any drip water 19 that gathers in the drip pans 17 is drawn out right away.
- FIG. 3 shows a float operated valve 39 on the pan outlet 27 of the drip pan 17 .
- a float 41 is connected to the valve 39 by an arm 43 and the valve 39 , arm 43 , and float 41 pivot about a pivot axis PA.
- the float moves upward and the valve moves as indicated by the arrow, slightly opening the valve and allowing drip water 19 to be sucked out through the pan outlet 27 , which is operated continuously so there is always suction at the pan outlet 27 .
- Humidity levels in the enclosures will vary, and so then will the rate of deposition of drip water 19 in the drip pans 17 .
- the illustrated float system will operate in a wide range of humidity conditions, and maintains the drip water level DWL above the pan outlet 27 at all times and so air is not drawn into the suction conduit 25 and drip water 19 remains in the suction conduit 25 to maintain the suction pump 31 primed.
- a sensor 45 can be provided that senses when all pan outlets 27 are closed, such as by sensing that no water is being drawn into the collector 33 , or by sensing that suction pressure has increased, indicating that nothing is flowing into any of the suction conduits 25 . When the sensor 45 senses that all pan outlets are closed, the suction pump is turned off.
- a timer 47 can be provided to turn the suction pump 31 intermittently, and if the sensor 45 still senses that all pan outlets 27 are closed, the suction pump will be turned off again, while if one or more pan outlets are open the suction pump 31 will operate until all pan outlets 17 are again closed.
- the present disclosure further provides a method of providing cooling to a plurality of neighboring enclosures 9 .
- the method comprises providing a chiller 3 operative to remove heat from a cooling liquid LQ passing through the chiller 3 from a chiller inlet 3 A to a chiller outlet 3 B; providing a remote cooling unit 5 in each enclosure 9 , each remote cooling unit 5 comprising a heat exchanger coil 13 ; circulating the cooling liquid LQ through the chiller 3 and from the chiller outlet 3 B through the heat exchanger coil 13 of each remote cooling unit 5 and back to the chiller inlet 3 A; in each remote cooling unit 5 , collecting drip water 19 that condenses on an exterior of each heat exchanger coil 13 ; connecting an input end 25 A of a suction conduit 25 to receive drip water 19 collected in each remote cooling unit 5 ; providing a suction at an output end 25 B of the suction conduit 25 and drawing drip water 19 from each remote cooling unit 5 into a collector 33 .
- the present disclosure provides a system and method for conveniently collecting drip water 19 that drips from the heat exchanger coils 13 of a plurality of remote cooling units 5 and conveying the collected drip water 19 from each remote cooling unit to a centrally located collector 33 .
- This system and method does not require any attendance to empty and dispose of the drip water that collects at each of the remote cooling units 5 as is typically required in portable applications.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
- This disclosure relates to the field of cooling equipment, and in particular cooling systems comprising a chilling apparatus connected to a plurality of remote cooling units.
- A common cooling system is provided by a chiller which removes heat from a cooling liquid, which liquid is then circulated to one or more remotely located coolers where it passes through a heat exchanger coil and then returns to the chiller to be cooled again. A fan creates an air stream through the coil and the air passing through the cooled coil is cooled and cools the room or enclosure where the heat exchanger is located. Such systems can be installed permanently in a building or the like, or can be portable for temporary use.
- Portable systems typically include a chiller unit to cool the liquid, a pump to pump the cooled liquid, and a plurality of remote cooler units connected by hoses. Depending on the situation, a portable chiller unit can be connected to several remote cooler units by hoses that are 200-300 feet long.
- The present disclosure provides a portable cooling system that overcomes problems in the prior art.
- As the air passes through the cold heat exchanger coil, drip water condenses out of the air onto the coil and drips into a pan. In permanent systems this drip water is simply funnelled to a drain, however in portable systems this drip water or condensate must be gathered in a drip pan or the like, and in many situations where there is no convenient drain the drip pans must periodically be emptied manually.
- In a first embodiment the present disclosure provides a cooling system comprising a chiller operative to remove heat from a cooling liquid passing through the chiller from a chiller inlet to a chiller outlet. A plurality of remote cooling units each comprises a heat exchanger coil and a fan operative to blow air through the heat exchanger coil, a drip pan configured to receive drip water that condenses on an exterior of the heat exchanger coil, a cooling conduit adapted for connection to the chiller outlet and a coil inlet of the heat exchanger coil, a return conduit adapted for connection to the chiller inlet and a coil outlet of the heat exchanger coil, and a suction conduit connected at an input end thereof to receive water from a pan outlet of the drip pan. A liquid pump is operative to circulate the cooling liquid through the chiller and from the chiller outlet to each remote cooling unit and back to the chiller inlet, and a suction pump connected at a suction port of the suction assembly to an output end of each suction conduit and operative to draw drip water from each drip pan through each of the suction conduits and deposit the drip water into a collector.
- In a second embodiment the present disclosure provides a method of providing cooling to a plurality of neighboring enclosures. The method comprises providing a chiller operative to remove heat from a cooling liquid passing through the chiller from a chiller inlet to a chiller outlet; providing a remote cooling unit in each enclosure, each remote cooling unit comprising a heat exchanger coil; circulating the cooling liquid through the chiller and from the chiller outlet through the heat exchanger coil of each remote cooling unit and back to the chiller inlet; in each remote cooling unit, collecting drip water that condenses on an exterior of each heat exchanger coil; connecting an input end of a suction conduit to receive drip water collected in each remote cooling unit; and providing a suction at an output end of the suction conduit and drawing drip water from each remote cooling unit into a collector.
- The present disclosure provides a system and method for conveniently collecting drip water that drips from the heat exchanger coils of a plurality of remote cooling units and conveying the collected drip water from each remote cooling unit to a centrally located collector. The disclosed system and method removes the need, especially in portable systems, for periodic attendance to empty and dispose of the drip water that collects at each of the remote cooling units.
- While the invention is claimed in the concluding portions hereof, preferred embodiments are provided in the accompanying detailed description which may be best understood in conjunction with the accompanying diagrams where like parts in each of the several diagrams are labeled with like numbers, and where:
-
FIG. 1 is a schematic top view of an embodiment of the system of the present disclosure installed in a plurality of neighboring enclosures; -
FIG. 2 is a schematic top view of the embodiment ofFIG. 1 showing a single remote cooling unit; -
FIG. 3 is a schematic sectional side view of a float operated valve on each pan outlet operative open the pan outlet when the drip water level rises to a selected level while maintain the drip water level at all times above the pan outlet to prevent air from entering the pan outlet into the suction conduit. -
FIGS. 1-3 schematically illustrate an embodiment of a cooling system 1 of the present disclosure. The system comprises achiller 3 operative to remove heat from a cooling liquid passing through the chiller from achiller inlet 3A to achiller outlet 3B. A plurality ofremote cooling units 5 is provided for operative connection to thechiller 3 to cool locations remote from thechiller 3. For example in a portable system 1 of the present disclosure the chiller 1 can be mounted on a trailer 7 or like vehicle and moved to a location adjacent to a number of different neighboring enclosures 9, typically rooms, separate buildings or a combination of like enclosures where cooling is desired. Theremote cooling units 5, as well as the required pumps described below, can be carried on the trailer as well and the remote cooling units can moved into position in the desired enclosures 9 and connected to thechiller 3 by aconduit assembly 11. - Each
remote cooling unit 5 comprises aheat exchanger coil 13 and afan 15 operative to blow air through theheat exchanger coil 13. Adrip pan 17 under theheat exchanger coil 13 is configured to receivedrip water 19 that condenses on an exterior of theheat exchanger coil 13 and forms drops 19A as seen inFIG. 3 that fall into thedrip pan 17. Theremote cooling units 5 can be configured with larger or smallerheat exchanger coils 13 to provideremote cooling units 5 suitable for varying cooling capacities. - Each
conduit assembly 11 comprises acooling conduit 21 adapted for connection to thechiller outlet 3B and acoil inlet 13A of theheat exchanger coil 13, areturn conduit 23 adapted for connection to thechiller inlet 3A and acoil outlet 13B of the heat exchanger coil, and asuction conduit 25 connected at aninput end 25A thereof to receive water from apan outlet 27 of thedrip pan 17. - A
liquid pump 29 is operative to circulate cooling liquid LQ through thechiller 3 and from thechiller outlet 3B to eachremote cooling unit 5 and back to thechiller inlet 3A. Asuction pump 31 is connected at asuction port 31A of the suction pump to an output end 25B of eachsuction conduit 25. Thesuction pump 31 creates a suction at thesuction port 31A that is operative to drawdrip water 19 from eachdrip pan 17 through each of thesuction conduits 25 and deposit thedrip water 19 into acollector 33. - To form each
conduit assembly 11, eachcooling conduit 21 is first insulated to preserve the cool temperature of the cooling liquid LQ as it passes from the chiller to theremote cooling unit 5. Thecooling conduit 21, thereturn conduit 23, and thesuction conduit 25 are enclosed together in a conduit cover, such as by wrapping a fabric or the like around the conduits, so theconduit assembly 11 is a single lengthy and flexible component that is readily rolled up for transport and then unrolled for deployment. A number ofconduit assemblies 11 can be provided with different lengths, or all can be the same length, which can be typically 250 or more feet long to provide a wide reach from thechiller 3 to the farthestremote cooling units 5. - The
suction pump 31 is a self-priming suction type water pump that pumps dripwater 19 from eachdrip pan 17 through thesuction conduits 25 and deposits thedrip water 19 into thecollector 33. It is contemplated that amist maker 35 can be provided that is operative to transform thedrip water 19 in thecollector 33 into amist 37 directed to cool thechiller 3. - The
suction pump 31 can be configured to operate constantly, with the pan outlet open so that anydrip water 19 that gathers in thedrip pans 17 is drawn out right away. - An alternate arrangement is schematically illustrated in
FIG. 3 which shows a float operatedvalve 39 on thepan outlet 27 of thedrip pan 17. Afloat 41 is connected to thevalve 39 by anarm 43 and thevalve 39,arm 43, and float 41 pivot about a pivot axis PA. When the level DWL of thedrip water 19 in thedrip pan 17 rises above the level shown inFIG. 3 , the float moves upward and the valve moves as indicated by the arrow, slightly opening the valve and allowingdrip water 19 to be sucked out through thepan outlet 27, which is operated continuously so there is always suction at thepan outlet 27. - It can be seen that a slight rise of the
float 41 will cause a correspondingly slight opening of thevalve 39, allowing some drip water to exit the drip pan causing thefloat 41 to move down closing thevalve 39 again, and this cycle will repeat continuously. In high humidity conditions where thedrip water 19 drips more quickly the drip water level DWL will rise more quickly but thefloat 41 will then rise higher causing thevalve 39 to open farther, allowing more water to be sucked out. - Humidity levels in the enclosures will vary, and so then will the rate of deposition of
drip water 19 in thedrip pans 17. The illustrated float system will operate in a wide range of humidity conditions, and maintains the drip water level DWL above thepan outlet 27 at all times and so air is not drawn into thesuction conduit 25 anddrip water 19 remains in thesuction conduit 25 to maintain thesuction pump 31 primed. - In some situations, such as low humidity conditions, rather than have the
pump 31 working at all times it may be preferred to have thesuction pump 31 operate only when needed. Asensor 45 can be provided that senses when allpan outlets 27 are closed, such as by sensing that no water is being drawn into thecollector 33, or by sensing that suction pressure has increased, indicating that nothing is flowing into any of thesuction conduits 25. When thesensor 45 senses that all pan outlets are closed, the suction pump is turned off. - A
timer 47 can be provided to turn thesuction pump 31 intermittently, and if thesensor 45 still senses that allpan outlets 27 are closed, the suction pump will be turned off again, while if one or more pan outlets are open thesuction pump 31 will operate until allpan outlets 17 are again closed. - The present disclosure further provides a method of providing cooling to a plurality of neighboring enclosures 9. The method comprises providing a
chiller 3 operative to remove heat from a cooling liquid LQ passing through thechiller 3 from achiller inlet 3A to achiller outlet 3B; providing aremote cooling unit 5 in each enclosure 9, eachremote cooling unit 5 comprising aheat exchanger coil 13; circulating the cooling liquid LQ through thechiller 3 and from thechiller outlet 3B through theheat exchanger coil 13 of eachremote cooling unit 5 and back to thechiller inlet 3A; in eachremote cooling unit 5, collectingdrip water 19 that condenses on an exterior of eachheat exchanger coil 13; connecting aninput end 25A of asuction conduit 25 to receivedrip water 19 collected in eachremote cooling unit 5; providing a suction at an output end 25B of thesuction conduit 25 and drawingdrip water 19 from eachremote cooling unit 5 into acollector 33. - The present disclosure provides a system and method for conveniently collecting
drip water 19 that drips from theheat exchanger coils 13 of a plurality ofremote cooling units 5 and conveying the collecteddrip water 19 from each remote cooling unit to a centrally locatedcollector 33. This system and method does not require any attendance to empty and dispose of the drip water that collects at each of theremote cooling units 5 as is typically required in portable applications. - The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous changes and modifications will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all such suitable changes or modifications in structure or operation which may be resorted to are intended to fall within the scope of the claimed invention.
Claims (17)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CA3099691 | 2020-11-18 | ||
CA3099691A CA3099691A1 (en) | 2020-11-18 | 2020-11-18 | Condensate recovery from remote cooling units |
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US20220155000A1 true US20220155000A1 (en) | 2022-05-19 |
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ID=81588393
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US17/496,844 Pending US20220155000A1 (en) | 2020-11-18 | 2021-10-08 | Condensate recovery from remote cooling units |
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US (1) | US20220155000A1 (en) |
CA (1) | CA3099691A1 (en) |
-
2020
- 2020-11-18 CA CA3099691A patent/CA3099691A1/en active Pending
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2021
- 2021-10-08 US US17/496,844 patent/US20220155000A1/en active Pending
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