US20070107886A1 - Evaporator for a refrigeration system - Google Patents

Evaporator for a refrigeration system Download PDF

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Publication number
US20070107886A1
US20070107886A1 US11/273,579 US27357905A US2007107886A1 US 20070107886 A1 US20070107886 A1 US 20070107886A1 US 27357905 A US27357905 A US 27357905A US 2007107886 A1 US2007107886 A1 US 2007107886A1
Authority
US
United States
Prior art keywords
tube
baffle plate
evaporator
extending
water pass
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.)
Abandoned
Application number
US11/273,579
Other languages
English (en)
Inventor
Wei Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Applied Americas Inc
Original Assignee
AAF McQuay Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AAF McQuay Inc filed Critical AAF McQuay Inc
Priority to US11/273,579 priority Critical patent/US20070107886A1/en
Assigned to AAF-MCQUAY INC. reassignment AAF-MCQUAY INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, WEI
Priority to PCT/US2006/041316 priority patent/WO2007058737A2/fr
Publication of US20070107886A1 publication Critical patent/US20070107886A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • 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
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0017—Flooded core heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators
    • F25B2339/024—Evaporators with refrigerant in a vessel in which is situated a heat exchanger
    • F25B2339/0242—Evaporators with refrigerant in a vessel in which is situated a heat exchanger having tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
    • F28F2009/224—Longitudinal partitions

Definitions

  • the present invention relates to refrigeration systems. More particularly, the present invention relates to evaporators for centrifugal compressor refrigeration systems.
  • Centrifugal chillers which are the workhorses of the comfort cooling industry, have very few moving parts (Prior Art FIG. 1 ). Therefore, they usually offer high reliability and low maintenance requirements.
  • a centrifugal compressor of the centrifugal chiller acts very much like a centrifugal fan, compressing the vapor flowing through it by spinning it from the center of an impeller wheel radially outward, allowing centrifugal forces to compress the vapor.
  • Some machines use multiple impellers to compress the refrigerant in stages.
  • the compressor is in fluid communication with an evaporator, as depicted in prior art FIG. 2 .
  • the evaporator acts to change the state of a refrigerant from a liquid to a vapor by warming the refrigerant.
  • the refrigerant vapor exits the evaporator at a suction nozzle under the motive force of a suction applied thereto by the compressor. It is important for the operating life of the compressor that an liquid refrigerant passing out through the suction nozzle be absolutely minimized, such liquid having a deleterious effect on compressor components.
  • Liquid carry-over has the potential for damaging or reducing the life of centrifugal compressors. Further, liquid carry-over reduces the cooling capacity and efficiency of the refrigeration system.
  • the present invention substantially meets the aforementioned needs of the industry.
  • the present invention affords the following advantages as compared to prior art refrigeration systems:
  • the drop liquid may heated near the shell support plate by water under the baffle plate;
  • the shell head near the suction nozzle may not be needed.
  • the present invention is an evaporator for a refrigeration system, including a baffle plate extending over a portion of a tube bundle assembly, the baffle plate preventing liquid refrigerant carried over by suction nozzle above, the baffle plate assisting in directing a fluid flow from a tube first portion to a tube second portion.
  • the present invention is further a method of forming an evaporator.
  • FIG. 1 is a partially cut away depiction of a prior art centrifugal compressor refrigeration system
  • FIG. 2 is perspective view of a cut away prior art evaporator
  • FIG. 3 is a cut away perspective view of an evaporator of the present invention.
  • Evaporator 10 is intended to be employed in a refrigeration system such as depicted in Prior Art FIG. 1 .
  • Such refrigeration system can be configured to employ the present invention simply by replacing the evaporator depicted in FIG. 1 with the evaporator 10 of the present invention.
  • the evaporator 10 has two major subcomponents: shell assembly 12 and tube bundle assembly 14 .
  • the shell assembly 12 of the evaporator 10 includes a cylindrical shell 16 .
  • the shell assembly 12 is 9 to 16 feet in length.
  • the cylindrical shell 16 is sealingly capped at either end by a shell head 68 .
  • the shell support plate 18 of FIG. 3 is the leftmost shell support plate 18 of the evaporator 10 , the rightmost shell support plate 18 not be depicted.
  • Each of the shell support plates 18 is a solid rectangular plate for fluidly sealing the interior cavity 22 defined with the cylindrical shell 16 .
  • a plurality of bores 20 are defined in shell support plate 18 for bolting the shell support plate 18 to the respective end of the cylindrical shell 16 .
  • a refrigerant suction nozzle 24 is disposed on the upper surface of the cylindrical shell 16 proximate the leftmost shell support plate 18 .
  • the refrigerant inlet 78 is at the bottom of the shell 16 .
  • the second subcomponent of the evaporator 10 is the tube bundle assembly 14 .
  • the tube bundle assembly 14 includes lower portion tubes 26 and upper portion tubes 28 .
  • the tube ends 30 of the tubes 26 , 28 are expanded and sealed at tube sheet 32 .
  • the tube sheet 32 is spaced apart from the inner margin of the shell support plate 18 .
  • a plurality of spaced apart tube supports 34 extend the length of the shell assembly 12 to support the tube bundle assembly 14 .
  • a water pass vane 36 is disposed leftward of the tube sheet 32 .
  • the water pass vane 36 provides for the demarcation between the lower portion tubes 26 and the upper portion tubes 28 in an evaporator in which the liquid refrigerant flows in at the bottom and refrigerant vapor flows out at the top, as depicted in FIG. 1 . It is understood that the configuration of the present invention can be rotated 90 degrees to define a side to side type evaporator. The water pass vane is then positioned vertically so that the water passage is from side to side.
  • the water pass vane 36 is generally rectangular and has spaced apart parallel side margins 38 . Each of the two side margins 38 is sealingly coupled to the interior margin of the cylindrical shell 16 .
  • the distal margin 40 of the water pass vane 36 is fixedly coupled to the tube sheet 32 .
  • the proximal margin 42 of the water pass vane 36 extends leftward therefrom and is spaced apart from the interior margin of the shell support plate 18 .
  • the proximal margin 42 in cooperation with the interior margin of the shell support plate 18 in part define a water passageway 44 between the lower portion tubes 26 and the upper portion tubes 28 .
  • baffle plate 46 Two sides of the baffle plate are welded on the inside surface of the shell.
  • the bottom surface of the baffle plate 46 is welded on the top of the tube sheet 32 .
  • the front edge of the baffle plate is welded on the shell support plate 18 .
  • the end of tubes are expanded to seal in the tube sheet 32 . Water passage can be used side by side also.
  • a baffle plate 46 is disposed at the leftmost portion of the cylindrical shell 16 .
  • the baffle plate 46 overlies the uppermost layer of tubes of the upper portion tubes 28 .
  • the baffle plate 46 is generally rectangular in shape and has opposed, spaced apart side margins 48 that extend to and are sealingly coupled with the interior margin of the cylindrical shell 16 .
  • the distal end 50 of the baffle plate 46 extends rightward a portion of the length of the cylindrical shell 16 .
  • the distal end 50 is located between a 1 ⁇ 4 and a 1 ⁇ 3 of the length of the cylindrical shell 16 . Accordingly, in an evaporator that is 9 to 16 feet long, the length dimension of the baffle plate 46 is preferably 3 to 4 feet.
  • the proximal end 52 of the baffle plate 46 is sealingly coupled to the interior margin of the leftmost shell support plate 18 .
  • the interior cavity 22 of the shell assembly 12 is flooded with refrigerant.
  • Chilled water is introduced to the lower portion tubes 26 of the tube bundle assembly 14 proximate the rightmost shell support plate 18 .
  • the chilled water makes a first pass through the lower portion tubes 26 as indicated by the arrow 54 , cooling the water and evaporating the refrigerant.
  • the water passes around the proximal end 42 of the water pass vane 36 through the water passage 44 , as indicated by the arrow 58 .
  • the now somewhat warmed water enters the tube ends 30 of the upper portion tubes 28 and makes a second pass through the upper portion tubes 28 as indicated by the arrow 58 and is then extracted from the evaporator 10 .
  • the baffle plate 48 acts to keep the water below the baffle plate 48 in its transition from the lower portion tubes 26 to the upper portion tubes 28 . Refrigerant vapor passes leftward through the upper portion of the interior cavity 22 and is drawn out of the suction nozzle 24 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
US11/273,579 2005-11-14 2005-11-14 Evaporator for a refrigeration system Abandoned US20070107886A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US11/273,579 US20070107886A1 (en) 2005-11-14 2005-11-14 Evaporator for a refrigeration system
PCT/US2006/041316 WO2007058737A2 (fr) 2005-11-14 2006-10-18 Evaporateur pour systeme de refrigeration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/273,579 US20070107886A1 (en) 2005-11-14 2005-11-14 Evaporator for a refrigeration system

Publications (1)

Publication Number Publication Date
US20070107886A1 true US20070107886A1 (en) 2007-05-17

Family

ID=38039552

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/273,579 Abandoned US20070107886A1 (en) 2005-11-14 2005-11-14 Evaporator for a refrigeration system

Country Status (2)

Country Link
US (1) US20070107886A1 (fr)
WO (1) WO2007058737A2 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2263051A2 (fr) * 2008-03-06 2010-12-22 Carrier Corporation Distributeur de refroidissement pour un échangeur de chaleur
US20120199325A1 (en) * 2009-09-23 2012-08-09 Atlas Copco Airpower N.V. Tube heat exchanger
US20140262180A1 (en) * 2013-03-15 2014-09-18 Coolit Systems Inc. Manifolded heat exchangers and related systems
CN104729346A (zh) * 2013-12-24 2015-06-24 珠海格力电器股份有限公司 壳管护板及其安装方法和壳管换热器
US20160138842A1 (en) * 2011-09-26 2016-05-19 Trane International Inc. Refrigerant management in hvac systems
US10364809B2 (en) 2013-03-15 2019-07-30 Coolit Systems, Inc. Sensors, multiplexed communication techniques, and related systems
US10365667B2 (en) 2011-08-11 2019-07-30 Coolit Systems, Inc. Flow-path controllers and related systems
US11365912B2 (en) * 2014-11-11 2022-06-21 Trane International Inc. Suction duct and multiple suction ducts inside a shell of a flooded evaporator
US11395443B2 (en) 2020-05-11 2022-07-19 Coolit Systems, Inc. Liquid pumping units, and related systems and methods
US11452243B2 (en) 2017-10-12 2022-09-20 Coolit Systems, Inc. Cooling system, controllers and methods
US11473860B2 (en) 2019-04-25 2022-10-18 Coolit Systems, Inc. Cooling module with leak detector and related systems
US11486615B2 (en) 2017-03-31 2022-11-01 Carrier Corporation Flow balancer and evaporator having the same
US11662037B2 (en) 2019-01-18 2023-05-30 Coolit Systems, Inc. Fluid flow control valve for fluid flow systems, and methods
US20230392837A1 (en) * 2022-06-03 2023-12-07 Trane International Inc. Evaporator charge management and method for controlling the same

Citations (30)

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US1917595A (en) * 1929-07-16 1933-07-11 Elliott Co Heater
US2343542A (en) * 1944-03-07 Heat extractor
US2919903A (en) * 1957-03-18 1960-01-05 Phillips Petroleum Co Shell-tube heat exchange apparatus for condensate subcooling
US3427227A (en) * 1967-01-25 1969-02-11 Westinghouse Electric Corp Flash evaporator with duct and baffle means
US3595299A (en) * 1968-07-29 1971-07-27 Linde Ag Apparatus for the evaporation of low-temperature liquefied gases
US3732922A (en) * 1970-03-06 1973-05-15 Stein Industrie Heat-exchanger module
US3875988A (en) * 1972-02-25 1975-04-08 Ebara Mfg Multiple effect evaporator apparatus
US4006602A (en) * 1974-08-05 1977-02-08 Fanberg Ralph Z Refrigeration apparatus and method
US4049410A (en) * 1974-07-29 1977-09-20 Allan Sinclair Miller Gas compressors
US4397740A (en) * 1982-09-30 1983-08-09 Phillips Petroleum Company Method and apparatus for cooling thermally cracked hydrocarbon gases
US4475588A (en) * 1981-09-28 1984-10-09 Mcquay Inc. Heat exchanger with tubes fixed at baffles
US4497363A (en) * 1982-04-28 1985-02-05 Heronemus William E Plate-pin panel heat exchanger and panel components therefor
USH52H (en) * 1983-12-08 1986-04-01 The United States Of America As Represented By The United States Department Of Energy Heat exchanger
US5099656A (en) * 1991-01-25 1992-03-31 Uniflow Manufacturing Company Evaporator design
US5203405A (en) * 1992-02-03 1993-04-20 Phillips Petroleum Company Two pass shell and tube heat exchanger with return annular distributor
US5392815A (en) * 1993-08-05 1995-02-28 Pacific Gas And Electric Company Gradational tube bundle flow conditioner for providing a natural flow profile to facilitate accurate orifice metering in fluid filled conduits
US5479784A (en) * 1994-05-09 1996-01-02 Carrier Corporation Refrigerant distribution device
US5509466A (en) * 1994-11-10 1996-04-23 York International Corporation Condenser with drainage member for reducing the volume of liquid in the reservoir
US5531266A (en) * 1993-12-28 1996-07-02 Uop Method of indirect heat exchange for two phase flow distribution
US5538598A (en) * 1992-03-23 1996-07-23 Fsr Patented Technologies, Ltd. Liquid purifying/distillation device
US6189491B1 (en) * 1996-12-12 2001-02-20 Siemens Aktiengesellschaft Steam generator
US6223555B1 (en) * 1999-06-08 2001-05-01 Visteon Global Technologies, Inc. Accumulator for an air conditioning system
US6273180B1 (en) * 1998-12-23 2001-08-14 L'air Liquide, Societe Anonyme Pour L'etude Et L'eploitation Des Procedes Georges Claude Heat exchanger for preheating an oxidizing gas
US6293112B1 (en) * 1999-12-17 2001-09-25 American Standard International Inc. Falling film evaporator for a vapor compression refrigeration chiller
US6516627B2 (en) * 2001-05-04 2003-02-11 American Standard International Inc. Flowing pool shell and tube evaporator
US6536231B2 (en) * 2001-05-31 2003-03-25 Carrier Corporation Tube and shell heat exchanger for multiple circuit refrigerant system
US6868695B1 (en) * 2004-04-13 2005-03-22 American Standard International Inc. Flow distributor and baffle system for a falling film evaporator
US7069734B2 (en) * 2003-04-17 2006-07-04 Aaf-Mcquay Inc. Methods for detecting surge in centrifugal compressors
US20070095512A1 (en) * 2005-10-31 2007-05-03 Wei Chen Shell and tube evaporator
US20070235173A1 (en) * 2006-04-10 2007-10-11 Aaf-Mcquary Inc. Shell and tube evaporator

Patent Citations (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2343542A (en) * 1944-03-07 Heat extractor
US1917595A (en) * 1929-07-16 1933-07-11 Elliott Co Heater
US2919903A (en) * 1957-03-18 1960-01-05 Phillips Petroleum Co Shell-tube heat exchange apparatus for condensate subcooling
US3427227A (en) * 1967-01-25 1969-02-11 Westinghouse Electric Corp Flash evaporator with duct and baffle means
US3595299A (en) * 1968-07-29 1971-07-27 Linde Ag Apparatus for the evaporation of low-temperature liquefied gases
US3732922A (en) * 1970-03-06 1973-05-15 Stein Industrie Heat-exchanger module
US3875988A (en) * 1972-02-25 1975-04-08 Ebara Mfg Multiple effect evaporator apparatus
US4049410A (en) * 1974-07-29 1977-09-20 Allan Sinclair Miller Gas compressors
US4006602A (en) * 1974-08-05 1977-02-08 Fanberg Ralph Z Refrigeration apparatus and method
US4475588A (en) * 1981-09-28 1984-10-09 Mcquay Inc. Heat exchanger with tubes fixed at baffles
US4497363A (en) * 1982-04-28 1985-02-05 Heronemus William E Plate-pin panel heat exchanger and panel components therefor
US4397740A (en) * 1982-09-30 1983-08-09 Phillips Petroleum Company Method and apparatus for cooling thermally cracked hydrocarbon gases
USH52H (en) * 1983-12-08 1986-04-01 The United States Of America As Represented By The United States Department Of Energy Heat exchanger
US5099656A (en) * 1991-01-25 1992-03-31 Uniflow Manufacturing Company Evaporator design
US5203405A (en) * 1992-02-03 1993-04-20 Phillips Petroleum Company Two pass shell and tube heat exchanger with return annular distributor
US5538598A (en) * 1992-03-23 1996-07-23 Fsr Patented Technologies, Ltd. Liquid purifying/distillation device
US5392815A (en) * 1993-08-05 1995-02-28 Pacific Gas And Electric Company Gradational tube bundle flow conditioner for providing a natural flow profile to facilitate accurate orifice metering in fluid filled conduits
US5531266A (en) * 1993-12-28 1996-07-02 Uop Method of indirect heat exchange for two phase flow distribution
US5479784A (en) * 1994-05-09 1996-01-02 Carrier Corporation Refrigerant distribution device
US5509466A (en) * 1994-11-10 1996-04-23 York International Corporation Condenser with drainage member for reducing the volume of liquid in the reservoir
US6189491B1 (en) * 1996-12-12 2001-02-20 Siemens Aktiengesellschaft Steam generator
US6273180B1 (en) * 1998-12-23 2001-08-14 L'air Liquide, Societe Anonyme Pour L'etude Et L'eploitation Des Procedes Georges Claude Heat exchanger for preheating an oxidizing gas
US6223555B1 (en) * 1999-06-08 2001-05-01 Visteon Global Technologies, Inc. Accumulator for an air conditioning system
US6293112B1 (en) * 1999-12-17 2001-09-25 American Standard International Inc. Falling film evaporator for a vapor compression refrigeration chiller
US6516627B2 (en) * 2001-05-04 2003-02-11 American Standard International Inc. Flowing pool shell and tube evaporator
US6536231B2 (en) * 2001-05-31 2003-03-25 Carrier Corporation Tube and shell heat exchanger for multiple circuit refrigerant system
US7069734B2 (en) * 2003-04-17 2006-07-04 Aaf-Mcquay Inc. Methods for detecting surge in centrifugal compressors
US6868695B1 (en) * 2004-04-13 2005-03-22 American Standard International Inc. Flow distributor and baffle system for a falling film evaporator
US20070095512A1 (en) * 2005-10-31 2007-05-03 Wei Chen Shell and tube evaporator
US20070235173A1 (en) * 2006-04-10 2007-10-11 Aaf-Mcquary Inc. Shell and tube evaporator

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110041528A1 (en) * 2008-03-06 2011-02-24 Carrier Corporation Cooler distributor for a heat exchanger
EP2263051A4 (fr) * 2008-03-06 2014-03-12 Carrier Corp Distributeur de refroidissement pour un échangeur de chaleur
EP2263051A2 (fr) * 2008-03-06 2010-12-22 Carrier Corporation Distributeur de refroidissement pour un échangeur de chaleur
US20120199325A1 (en) * 2009-09-23 2012-08-09 Atlas Copco Airpower N.V. Tube heat exchanger
US9068783B2 (en) * 2009-09-23 2015-06-30 Atlas Copco Airpower N.V. Tube heat exchanger
US10365667B2 (en) 2011-08-11 2019-07-30 Coolit Systems, Inc. Flow-path controllers and related systems
US11714432B2 (en) 2011-08-11 2023-08-01 Coolit Systems, Inc. Flow-path controllers and related systems
US12092378B2 (en) 2011-09-26 2024-09-17 Trane International Inc. Refrigerant management in HVAC systems
US20160138842A1 (en) * 2011-09-26 2016-05-19 Trane International Inc. Refrigerant management in hvac systems
US10859297B2 (en) * 2011-09-26 2020-12-08 Trane International Inc. Refrigerant management in HVAC systems
US11661936B2 (en) 2013-03-15 2023-05-30 Coolit Systems, Inc. Sensors, multiplexed communication techniques, and related systems
US9943014B2 (en) * 2013-03-15 2018-04-10 Coolit Systems, Inc. Manifolded heat exchangers and related systems
US20140262180A1 (en) * 2013-03-15 2014-09-18 Coolit Systems Inc. Manifolded heat exchangers and related systems
US10364809B2 (en) 2013-03-15 2019-07-30 Coolit Systems, Inc. Sensors, multiplexed communication techniques, and related systems
CN104729346A (zh) * 2013-12-24 2015-06-24 珠海格力电器股份有限公司 壳管护板及其安装方法和壳管换热器
US11365912B2 (en) * 2014-11-11 2022-06-21 Trane International Inc. Suction duct and multiple suction ducts inside a shell of a flooded evaporator
US11486615B2 (en) 2017-03-31 2022-11-01 Carrier Corporation Flow balancer and evaporator having the same
US11452243B2 (en) 2017-10-12 2022-09-20 Coolit Systems, Inc. Cooling system, controllers and methods
US11662037B2 (en) 2019-01-18 2023-05-30 Coolit Systems, Inc. Fluid flow control valve for fluid flow systems, and methods
US11473860B2 (en) 2019-04-25 2022-10-18 Coolit Systems, Inc. Cooling module with leak detector and related systems
US11725890B2 (en) 2019-04-25 2023-08-15 Coolit Systems, Inc. Cooling module with leak detector and related systems
US12031779B2 (en) 2019-04-25 2024-07-09 Coolit Systems, Inc. Cooling module with leak detector and related systems
US11395443B2 (en) 2020-05-11 2022-07-19 Coolit Systems, Inc. Liquid pumping units, and related systems and methods
US20230392837A1 (en) * 2022-06-03 2023-12-07 Trane International Inc. Evaporator charge management and method for controlling the same
US12066224B2 (en) * 2022-06-03 2024-08-20 Trane International Inc. Evaporator charge management and method for controlling the same

Also Published As

Publication number Publication date
WO2007058737A2 (fr) 2007-05-24
WO2007058737A3 (fr) 2007-07-26

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