Vertical Cone Or Drum Patents (Class 165/118)
  • Patent number: 10541434
    Abstract: A fuel cell system includes a fuel cell having an anode and a cathode, a water recovery system configured to recycle water from exhaust from the anode, a heat exchanger configured to transfer heat between exhaust from the cathode and water from the water recovery system, and a saturator having an upper section and a lower section separated by a divider defining an opening configured to allow fuel and steam to pass from the lower section to the upper section. The lower section receives fuel from a fuel source and water from the water recovery unit and the upper section receives fuel from the lower section and water from the heat exchanger.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: January 21, 2020
    Assignee: FUELCELL ENERGY, INC.
    Inventors: Fred C. Jahnke, Matthew Lambrech
  • Patent number: 10356939
    Abstract: The present invention relates to electronic equipment data center or co-location facility designs and methods of making and using the same in an environmentally aware manner, and generally provides apparatus and methods for using novel support bracket structures, and thermal panels associated with the same, that allow for distinct partitioning of air flowing in hot aisles and cold aisles, as well as for holding wiring above cabinets that are used to store electronic equipment in the facility.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: July 16, 2019
    Assignee: Switch, Ltd.
    Inventor: Rob Roy
  • Patent number: 9561948
    Abstract: A multifunctional module for a refrigerating apparatus with a module housing, includes a controllable function valve arranged for dispensing water from a water circuit. The module housing includes a leak detection device for detecting water leakage inside the module housing.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: February 7, 2017
    Assignee: BSH HAUSGERÄTE GMBH
    Inventors: Elmar Fahnle, Eugen Gaplikow, Hans Gerd Keller, Michael Krapp, Karl-Friedrich Laible, Vitaliy Rimkevich, Hans Peter Werner
  • Patent number: 9068781
    Abstract: Tube-bundle equipment of the falling liquid film type, comprising a vertical cylindrical body closed at the ends and divided into at least an upper section, an intermediate section and a lower section by means of two perforated tube sheets arranged transversally to support the tubes forming the bundle, wherein each of said tubes is surmounted, on the upper end, by a ferrule, for the inlet and distribution of the liquid in the form of a film, which comprises in the upper part, one or more openings for the outlet of vapors, at an intermediate height one or more openings, preferably tangential, for the inlet of the liquid and below, a circular base for resting on said tube from which an internal cylindrical section, inserted in the tube for a length varying from 10 to 200 mm, protrudes downwards together with an outer metallic strip for a length of at least 2 mm, so that, in the circular area defined between said outer metallic strip and said protruding cylindrical section, there is a gasket, inserted between sa
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: June 30, 2015
    Assignee: SAIPEM S.p.A.
    Inventors: Alessandro Gianazza, Lino Carlessi
  • Patent number: 8291968
    Abstract: A distributor of flowable medium for a heat exchanger has a housing member and at least one substantially vertically oriented tube member arranged therein. The distributor has a hollow body arranged to be supported in one end of the tube member. An upturned funnel shaped core member is formed in the hollow body, resulting in an annular flow passage between the body and the core member. The body has an upper section with an inlet, a lower section with an outlet, and a mid section between the upper and lower sections. The flow passage extends from the inlet to the outlet at the lower section, and is configured to narrow progressively from the inlet towards the mid section, and widen progressively from the mid section towards the outlet for modifying flow characteristics of the medium flowing through the passage. Intake guide elements are provided at the upper section.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: October 23, 2012
    Assignee: Eestech, Inc.
    Inventor: Gregory Mark Paxton
  • Patent number: 8158840
    Abstract: A process and apparatus for steam cracking liquid hydrocarbon feedstocks utilizes a vapor/liquid separation apparatus to treat heated vapor/liquid mixtures to provide an overhead of reduced residue content and includes: i) indirectly heat exchanging liquid bottoms with boiler feed water to provide cooled liquid bottoms and preheated boiler feed water; ii) directing at least a portion of said preheated boiler feed water to a steam drum; and iii) recovering steam having a pressure of at least about 4100 kPa (600 psia) from said steam drum.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: April 17, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: David B. Spicer
  • Patent number: 7908766
    Abstract: A clothes dryer is provided. In the dryer, air flowing into a drying container is provided with heat from heat pump. The clothes dryer comprises a cabinet, a drying container rotationally mounted in the cabinet, a motor providing the container with rotational force, a first air path connected to a side of the container, a second air path connected to another side of the container and to the outside of the cabinet, and a first heat exchanging member and a second heat exchanging member in the first air path. A damper may be additionally included in the second air path.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: March 22, 2011
    Assignee: LG Electronics Inc.
    Inventors: Seung-Phyo Ahn, Seung-Myun Baek, Jung-Wook Moon, Dae-Woong Kim, Byeong-Jo Ryoo
  • Patent number: 7793652
    Abstract: A free-floating, integrated, solar operated water heater appliance, for heating the body of water includes a flotation device for buoyantly supporting the appliance in the body of water. A water heater element, fueled by solar energy, heats water pumped through the heater element by an integral pump, driven by solar energy. A solar energy reflector/container supports the heater element and concentrates solar energy onto the outer surface of the heater element. A parabolic dish reflector concentrates solar energy onto the inner surface of the heater element. Water is circulated through the heater element and returned, in elevated temperature, to the body of water.
    Type: Grant
    Filed: March 1, 2008
    Date of Patent: September 14, 2010
    Inventor: Domingo Delgado
  • Patent number: 7481857
    Abstract: Process and reaction unit for isothermal shift conversion of a carbon monoxide containing feed gas, the process comprising the steps of introducing the feed gas in a reaction unit into reactor tubes with a fixed bed of a shift conversion catalyst in a reaction zone; contacting the feed gas with the catalyst at conditions being effective in carbon monoxide shift conversion reaction with steam reactant to hydrogen and cooling the reaction by indirect heat exchange with a cooling agent by passing the cooling agent in a falling film along shell side of the reactor tubes and removing heated cooling agent from the falling film; passing hydrogen when it is formed by the shift conversion reaction through a hydrogen selective membrane to a permeate zone; withdrawing hydrogen from the permeate zone and carbon monoxide depleted feed gas from the reaction zone.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: January 27, 2009
    Assignee: Haldor Topsoe A/S
    Inventors: Thomas Rostrup-Nielsen, Erik Løgsted-Nielsen
  • Patent number: 6883596
    Abstract: A heater exchanger used to condense a refrigerant in a refrigeration system. The heat exchanger is designed to perform a heat exchanging operation by the use of latent heat of water vaporization, thus having improved heat exchanging efficiency as well as a reduced size. The heat exchanger includes an upper header having a refrigerant inlet port and distributing a refrigerant introduced into the upper header through the refrigerant inlet port, a plurality of heat exchanging tubes connected at upper ends thereof to the upper header and extending in a vertical direction, a lower header connected to lower ends of the heat exchanging tubes and gathering the refrigerant flowing from the heat exchanging tubes, with a refrigerant outlet port formed in the lower header, and a water supply unit assembled with upper portions of external surfaces of the heat exchanging tubes, and feeding water to the tubes to cause water to flow along the external surfaces of the tubes.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: April 26, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeung-Hoon Kim, Baek Youn, Young-Saeng Kim, Hwan-Young Park
  • Patent number: 6830099
    Abstract: An improved two-phase refrigerant distributor for use in a falling film evaporator in a refrigeration chiller system defines apertures in its undersurface from which serrated collars depend. The serrations cooperate to define locations below the undersurface of the distributor to which liquid refrigerant is drawn prior to exiting the distributor. As a result, the hang-up and/or travel of liquid refrigerant on the distributor undersurface is reduced or eliminated.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: December 14, 2004
    Assignee: American Standard International Inc.
    Inventor: Shane A. Moeykens
  • Publication number: 20040112573
    Abstract: An improved two-phase refrigerant distributor for use in a falling film evaporator in a refrigeration chiller system defines apertures in its undersurface from which serrated collars depend. The serrations cooperate to define locations below the undersurface of the distributor to which liquid refrigerant is drawn prior to exiting the distributor. As a result, the hang-up and/or travel of liquid refrigerant on the distributor undersurface is reduced or eliminated.
    Type: Application
    Filed: December 13, 2002
    Publication date: June 17, 2004
    Inventor: Shane A. Moeykens
  • Publication number: 20040045276
    Abstract: A thruster device and associated methods are provided. The thruster device comprises a frustoconical inner layer and a frustoconical outer layer that surrounds the inner layer such that the inner and outer layers cooperate to define a spiral flow passage therebetween. An outlet, such as a nozzle, is attached to an exit end of the thruster device such that the outlet is in fluid communication with the spiral flow passage. In one embodiment, the thruster device includes an end flow cap that is also attached to the exit end and establishes the fluid communication between the spiral flow passage and the outlet. The end flow cap includes at least one channel for directing the propellant from the spiral flow passage to the outlet. The design of the thruster device allows the frustoconical inner and outer layers to be assembled without galling or damaging the spiral flow passage.
    Type: Application
    Filed: August 13, 2003
    Publication date: March 11, 2004
    Applicant: The Boeing Company
    Inventors: Patrick E. Frye, Joseph P. Carroll, James M. Shoji
  • Patent number: 6435484
    Abstract: An absorber having a shell, wet tubes and cooling fluid supply and collection portions. Partition walls divide the shell into at least three zones. The wet tubes are disposed parallelly in the shell, passing through the partition walls. The opposite open ends of the wet tube locate in the uppermost and lowermost zones of the shell, respectively. The cooling fluid supply portion communicates with the open end of the wet tube to supply a cooling fluid thereto. The cooling fluid collection portion communicates with the other open end of the wet tube and discharge it outside. A gap is formed between the wet tube and the partition walls facing the intermediate zone. The cooling fluid continuously flows in the wet tubes, while supplying the liquid working fluid to the uppermost zone so as to flow down from the gap. The liquid working fluid flows through the gap to the zone locating below the intermediate zone and is discharged outside.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: August 20, 2002
    Inventor: Haruo Uehara
  • Patent number: 6354369
    Abstract: Apparatus and method for condensing moisture from an air stream. The condensing comprises concentric cylinders having a common wall. The outer cylinder contains a cooling material, such as water, and upon contact therewith, the air stream is cooled and moisture contained therein is condensed.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: March 12, 2002
    Assignee: Kazuko Kuboyama
    Inventor: Nobuyoshi Kuboyama
  • Patent number: 6089312
    Abstract: The present invention provides a vertical falling film shell and tube heat exchanger, where the falling film is formed on the exterior surface of the tubes. A distribution plate is provided below an upper tubesheet, and a sparger plate having sparger holes is provided between the upper tubesheet and the distribution plate. A plurality of vertical, parallel tubes pass through the distribution and sparger plates and are sealingly engaged with the upper tubesheet and the sparger plate. The distribution plate has oversized holes through which the tubes pass, an annular space being defined around each tube where the tube passes through the distribution plate. The first fluid passes one time through the tubes, and the second fluid is fed to the shell side as two streams, a liquid stream and a vapor stream. The liquid stream is introduced to the shell between the upper tubesheet and the sparger plate and drains downwardly onto the second distribution plate through the sparger holes.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: July 18, 2000
    Assignee: Engineers and Fabricators Co.
    Inventors: Mark R. Biar, Charles J. Hammack
  • Patent number: 6068730
    Abstract: A liquid distributor for distributing liquid over the heat transfer surface of an evaporator includes a channel array including one or more supply channels and downwardly deviating distribution channels. Each distribution channel has a step-shaped expansion located downstream with respect to the supply channel and connecting therewith via a sharp point, restricting the liquid suction created in the distribution channel. Sharp points provided in the supply channel or channels further restrict the liquid suction.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: May 30, 2000
    Assignee: Hadwaco Ltd Oy
    Inventors: Leif Ramm-Schmidt, Veli Tiainen, Peter Koistinen, Hemmo Eriksson
  • Patent number: 5983996
    Abstract: A steam condenser has a perforated plate extending transversely in a housing, a pipe extending upwardly from an opening in the plate and having openings in its upper portion, at least one steam inlet, and a deflector adjacent to said inlet extending inwardly of the housing and downwardly to deflect and disburse steam to enhance condensation.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: November 16, 1999
    Inventor: Elmer Romero
  • Patent number: 5893410
    Abstract: The falling film condensing heat exchanger includes a plurality of vertical tubes carrying a coolant. A distribution plate is disposed at the upper end of the condenser shell and has a plurality of apertures receiving the tubes. The apertures in the distribution plate define an annular space around the tubes which permits liquid to flow through the distribution plate apertures in the form of a thin film about the tubes below the distribution plate to enhance heat transfer between the vapor on the shell side and the coolant on the tube side. The distribution plate has depressions about each of the apertures to puddle the liquid, ensuring flow of liquid through the apertures in the form of a thin film about the surface of each tube.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: April 13, 1999
    Assignee: General Electric Co.
    Inventor: Nicholas Dinkel Halbrook
  • Patent number: 5213154
    Abstract: A single-stage desiccant regeneration system for use in an air conditioning system, the regeneration system comprising a falling film heat exchanger for transferring heat from concentrated desiccant to dilute desiccant, a boiler for regenerating dilute desiccant, piping for flowing dilute desiccant from the air conditioning system upward through the heat exchanger, and a flow path for directing concentrated desiccant from the boiler through the heat exchanger and to the air conditioning system.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: May 25, 1993
    Assignee: Gas Research Institute
    Inventors: Joseph Marsala, Mark W. Spatz
  • Patent number: 5195578
    Abstract: An apparatus for heat exchange between a fluid circulating in a tube of heat conductive material and a flow of liquid in a thin layer circulating by gravity in a channel of heat conductive material, in thermal contact with the tube and disposed in the manner of a helix around the tube. The invention has application to evaporation, desorption, condensation, and absorption in chemical and physico-chemical reactors, and especially in air conditioning and refrigeration systems.
    Type: Grant
    Filed: November 14, 1990
    Date of Patent: March 23, 1993
    Assignee: Pechiney Recherche
    Inventors: Pierre Le Goff, Bertrand Clauzade
  • Patent number: 5076347
    Abstract: An indirect evaporative cooler having an improved heat exchanger. The heat exchanger includes a plurality of heat tubes arranged in a closely spaced vertically stagger matrix and with each tube having an internal fin mounted therein. The heat transfer tubes and internal fins are distortion fitted to one another to provide a heat conductive bond between the internal fins and the exterior of the heat transfer tubes. Additionally, the heat transfer tubes are arranged in a novel matrix with improved heat transfer characteristics.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: December 31, 1991
    Assignee: Coolex, Inc.
    Inventor: Sam F. Fogleman
  • Patent number: 5054547
    Abstract: A vertical tube heat exchanger having a shell enclosing a bottom tubesheet, a top tubesheet in parallel, spaced-apart relationship to the bottom tubesheet, and a plurality of spaced-apart parallel flow tubes extending between the top tubesheet and bottom tubesheet includes liquid distributor devices inserted into the open top end of the flow tubes. The distributors are fabricated of an elastic material of sufficient resilience to sustain deformation circumferentially of the distributor device to accomodate irregularities in the tube wall at the top end creating a continuous uninterrupted peripheral seal at the interface of the distributor and tube wall at the open top end when inserted in the tube open top end, and to recover the original peripheral size and form of the distributor when the distributor is removed from the tube open top end.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: October 8, 1991
    Assignee: Henry Vogt Machine Co.
    Inventor: Kenneth R. Shipley
  • Patent number: 5004043
    Abstract: Apparatus (10) for the evaporation of liquids or for the absorption or degassing of two-substance or multi-substance solutions of the interior tube falling film type of construction, with a pressure tank (12) through which a heat exchanging medium can pass, whose interior contains a plurality of vertical parallel tubes (22) set apart from one another which open in a bell (26; 24) placed on the bottom and on the top of the pressure tank, the upper ends of the tubes projecting above the upper side of the top place of the pressure tank. On the upper bell (24) there is provided an inlet (36) for the liquid or solution, and a connection (38) for the input or output of evaporated liquid or gaseous solution component, and on the bottom bell there is provided an outlet (34) for liquid or liquid solution.At a distance above the mouths of the tubes (22) a dividing plate (42) is inserted into the bell, which has a plurality of bores (44) of small diameter.
    Type: Grant
    Filed: November 2, 1988
    Date of Patent: April 2, 1991
    Assignee: TCH Thermo-Consulting-Heidelberg GmbH
    Inventors: Vinko Mucic, Kurt Thieme, Jurgen Engelmann
  • Patent number: 4932468
    Abstract: A heat exchanger with a multiplicity of generally vertical heat transfer tubes has an improved liquid distribution arrangement in its upper inlet head. The liquid distribution arrangement includes a flow diverting baffle disposed within the inlet head above the tubes, a plurality of flow restricting devices inserted in the upper open ends of the tubes and a dam spaced inwardly from a peripheral region of the upper head for receiving flow from the baffle and providing an overflow reservoir surrounding the upper open tube ends for evenly distributing flow to the upper open tube ends.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: June 12, 1990
    Assignee: E. L. Nickell Co., Inc.
    Inventor: Zahid H. Ayub
  • Patent number: 4924936
    Abstract: A multiple, parallel packed column vaporizer for vaporizing a chemical having a relatively low decomposition temperature includes a shell; a plurality of parallel, vertically oriented vaporization columns arranged in the shell, each vaporization column having inner walls and upper and lower open ends; a distribution assembly for distributing the chemical substantially equally to the open upper ends of the vaporization columns, which flows downwardly therein; a heat exchanger which heats the vaporization columns to provide the heat needed to vaporize the chemical therein; and a gas supply which supplies the gas to the lower ends of the vaporization columns so that the chemical is vaporized and becomes entrained in the gas and is carried upwardly out of the vaporizer.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: May 15, 1990
    Assignee: M&T Chemicals Inc.
    Inventor: Clem McKown
  • Patent number: 4848447
    Abstract: A tube-type heat exchanger has the tube ends substantially flush with the upper tube sheet and liquid is distributed to the tubes through distributor heads which are sealed and therefore provide gas cushions absorbing volume changes in the tubes.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: July 18, 1989
    Inventor: Hans H. Sladky
  • Patent number: 4842049
    Abstract: A heat exchange apparatus having a first header for receiving fluid from a source, flexible thin-walled tubular plastic heat exchange elements defining a plurality of passages through a heat exchange zone and second header means for receiving fluid from said plastic heat exchange elements after passing through said heat exchange zone. Support elements are provided, supporting and rigidifying the flexible thin-walled tubular plastic heat exchange member. The plastic heat exchange element defining said plurality of passages is radially expandable by pressure of fluid from said source to avoid scale formation.
    Type: Grant
    Filed: June 16, 1987
    Date of Patent: June 27, 1989
    Assignee: Dodds-Oboler, Inc.
    Inventor: Diego E. F. Dodds
  • Patent number: 4810327
    Abstract: In a falling film evaporator of the vertical-tube type in which liquid to be evaporated is supplied at the top on the outer surface of vertical heat exchanger tubes and the heat medium is supplied to the heat exchanger tubes at the bottom for flow inside the same, at least one larger tube element than the heat exchanger tubes is disposed between and fixed to tube plates at the both ends of the group of tubes to stabilize the group of tubes against tension and especially compression stresses.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: March 7, 1989
    Assignee: Ahlstromforetagen Svenska AB
    Inventor: Kjell Norrmen
  • Patent number: 4799542
    Abstract: A heat exchanger designed to cool a liquid such as water has a boiler with several upright heat-transfer tubes on whose inner surfaces the liquid descends in the form of a thin film while a refrigerant such as ammonia or a Freon rises within the boiler. To generate the thin films the liquid to be cooled is collected in a storage vessel above the boiler into which the heat-transfer tubes project. Each of these open-topped tubes contains an insert with a frustoconically diverging bottom part approaching the inner tube surface to within a fraction of a millimeter. The bottom part of the insert has an acute-angled peripheral edge insuring the detachment of the liquid from its surface. The several inserts are suspended from a vertically reciprocable piston rod forming part of a pneumatic jack whose alternate pressurization is controlled by a relay in response to two microswitches actuated by cams on the piston rod and to two level sensors ascertaining the liquid level in the storage vessel.
    Type: Grant
    Filed: August 4, 1986
    Date of Patent: January 24, 1989
    Inventor: Hans Sladky
  • Patent number: 4704993
    Abstract: A power plant includes a source of water, a heat exchanger having an evaporator side maintained below atmospheric pressure for converting the water to steam, and a turbine responsive to said steam for producing work and heat depleted steam. The heat exchanger also has a condenser side for receiving and condensing the heat depleted steam. The evaporator side of the heat exchanger is separated by a barrier from the condenser side. Concentrated brine from a source thereof is caused to fall in a film on the condenser side of the barrier, and water from the water source is caused to fall in a film on the evaporator side of the barrier. The heat of dilution of the film of concentrated brine, as it is directly contacted by the heat depleted steam in the condenser side of the heat exchanger, is transferred through the barrier from the condenser side to the evaporator side raising the temperature of the film of water on the evaporator side which evaporates in the reduced pressure in the evaporator.
    Type: Grant
    Filed: August 8, 1986
    Date of Patent: November 10, 1987
    Assignee: Geophysical Engineering Company
    Inventor: Gad Assaf
  • Patent number: 4641706
    Abstract: A vertical shell and tube heat exchanger in which the tubes extend through oversized holes in a liquid distribution plate. Liquid flows through the holes and down each tube exterior surface as a falling film. A spacer or clip, desirably of wire, is placed in each hole around each tube to center the tube so that the film has a uniform thickness. The clip is self-locking and remains fixed securely in position.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: February 10, 1987
    Assignee: Chicago Bridge & Iron Company
    Inventor: Timothy J. Haynie
  • Patent number: 4614229
    Abstract: A method, together with suitable apparatus therefor, is provided useful in recovering heat from a high temperature cracked hydrocarbon gas, in which a liquid wash is injected into the tubes of a vertically oriented multitube transfer line heat exchanger to minimize deposition of coke. The wash liquid is introduced into a plenum chamber located above the top tube sheet and it then flows through a perforated plate. This distributes the liquid uniformly over the plate where it flows into the tubes to dissolve and/or flux condensates and coke.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: September 30, 1986
    Assignee: Exxon Research & Engineering Co.
    Inventor: Morey E. Oldweiler
  • Patent number: 4584064
    Abstract: The present invention concerns a process for the thin layer evaporation of liquid in which the thin layer to be evaporated is formed by centrifugation.It is characterized in that the pointed part of the said cone is immersed in a reserve of liquid to be evaporated and a communication is established between the external face of the said pointed part of the cone and the internal face of this cone, so that the thin layer subjected to evaporation is formed on the internal face and on the external face of the cone.It concerns a device and installation for the distillation by evaporation in thin layers, particularly for hydrocarbons, and process for operating this device.
    Type: Grant
    Filed: February 10, 1984
    Date of Patent: April 22, 1986
    Assignee: Elf France
    Inventors: Andre Ciais, Gilles Variot
  • Patent number: 4579171
    Abstract: A falling film heat exchanger in which a continuous weld circumferentially joins each tube to the outer surface of the upper, and desirably also the lower, tubesheet. The welds seal the crevices between the tubes and tubesheet holes and prevent corrosion. Since the circumferential welds cannot be deposited if the tube ends extend more than about 2 inches past the tubesheet, extensions can be added by welding.
    Type: Grant
    Filed: March 4, 1983
    Date of Patent: April 1, 1986
    Assignee: Chicago Bridge & Iron Company
    Inventors: Donald C. Stafford, Tushar K. Shah, Vincent F. Allo
  • Patent number: 4572287
    Abstract: This invention relates to shell and tube vertical falling film heat exchangers. More particularly, this invention is concered with an improved heat exchanger which has an insert or cap on the upper ends of the tubes to direct the liquid against the inner surfaces of the tubes to form a thin falling film, thereby increasing heat exchange.
    Type: Grant
    Filed: April 26, 1984
    Date of Patent: February 25, 1986
    Assignee: Chicago Bridge & Iron Company
    Inventors: Vincent F. Allo, Donald C. Stafford
  • Patent number: 4567942
    Abstract: A falling film heat exchanger of the shell and tube type has the tubes positioned in concentric rings. A liquid distribution box is positioned above the tube upper ends. Short pipes extend downwardly from the box to feed liquid between the rings of tubes to distribute the liquid uniformly to the tubes. The box desirably rotates slowly. Also, the pipes desirably extend between upwardly extending tube ends so as to provide a uniform pool of liquid which overflows uniformly into the tubes.
    Type: Grant
    Filed: March 4, 1983
    Date of Patent: February 4, 1986
    Assignee: Chicago Bridge & Iron Company
    Inventors: Donald C. Stafford, Tushar K. Shah, Vincent F. Allo
  • Patent number: 4564064
    Abstract: A falling film heat exchanger having a plurality of tubes is provided with a liquid distribution member surrounding each tube which directs liquid against the tube external wall to control the falling film flow and to form uniform films on each tube. The liquid can be a feed liquid or a heat exchange liquid such as a refrigerant.
    Type: Grant
    Filed: December 5, 1984
    Date of Patent: January 14, 1986
    Assignee: Chicago Bridge & Iron Company
    Inventors: Vincent F. Allo, Donald C. Stafford
  • Patent number: 4532985
    Abstract: Falling film heat exchanger includes circular areas for evenly distributing feed liquid and/or heat exchange liquid to the tube interior and/or exterior surfaces. The circular areas may be defined by a liquid porous material, slots in an O-ring or vertical slots in the holes through and to which the tubes are joined.
    Type: Grant
    Filed: January 20, 1983
    Date of Patent: August 6, 1985
    Assignee: Chicago Bridge & Iron Company
    Inventor: Donald R. Cutler
  • Patent number: 4520866
    Abstract: A falling film evaporation type heat exchanger of the shell-tube type which includes an outer shell or main body portion and a plurality of individual heat transfer tubes disposed therein, with the heat transfer tubes extending substantially in a vertical direction. A liquid refrigerant is caused to freely fall from upper portions of the heat transfer tubes along the outer peripheral surfaces of the tubes and the evaporation of the thin refrigerant film, formed on the outer peripheral surface of the heat transfer tubes effects the transfer.
    Type: Grant
    Filed: May 26, 1983
    Date of Patent: June 4, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Tadakatsu Nakajima, Wataru Nakayama, Takahiro Daikoku
  • Patent number: 4519448
    Abstract: A falling film heat exchanger having a plurality of tubes is provided with a liquid distribution member surrounding each tube which directs liquid against the tube external wall to control the falling film flow and to form uniform films on each tube. The liquid can be a feed liquid or a heat exchange liquid such as a refrigerant.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: May 28, 1985
    Assignee: Chicago Bridge & Iron Company
    Inventors: Vincent F. Allo, Donald C. Stafford
  • Patent number: 4317787
    Abstract: An improved device for the distribution of liquids in a vertical heat-exchange apparatus which has reeds mounted on the top ends of vertical tubes to spread a liquid in film form over the internal surface of each tube of the tube bundle. The reeds of the invention are closed at their tops instead of being open as was common in conventional practice, and the reeds have an array of circumferential perforations near their closed tops for venting off gases and vapors which evolve from said liquid, while tangential perforations extend through the peripheral surface of the reeds in intermediate sections thereof. The pressure drop of gases and vapors can be adjusted within a wide range and corrosion in the top portion of the tubes is very efficiently prevented.
    Type: Grant
    Filed: December 11, 1980
    Date of Patent: March 2, 1982
    Assignee: Snamprogetti S.p.A.
    Inventor: Vincenzo Lagana'
  • Patent number: 4248296
    Abstract: A fluid distributor for mounting in the upper end of a vertical condenser tube, comprising a ferrule having a downwardly opening cavity therein, the cavity including a lower frusto-conical portion and an upper spherical portion which is tangential to said lower portion. The ferrule has an enlarged head portion containing at least one inlet orifice, the orifice extending upwardly at an angle from a horizontal plane passing through the upper end of the ferrule chamber, and the inner end thereof opening tangentially on the wall defining the spherical chamber portion. Fluid entering the ferrule chamber through the inlet orifice is directed thereby both laterally and downwardly, to establish an inverted vortex from which is formed a uniform hollow cylindrical film of fluid.
    Type: Grant
    Filed: August 7, 1979
    Date of Patent: February 3, 1981
    Assignee: Resources Conservation Company
    Inventor: Louis J. Jezek
  • Patent number: 4235281
    Abstract: A condenser/evaporator heat exchanger comprising a plurality of vertically oriented panel units spaced moderately from one another. Each panel unit comprises a pair of thin film plastic sheets bonded to one another along a plurality of vertically extending bond lines transversely spaced from one another at regular intervals. The two sheets form between adjacent pairs of bond lines a plurality of vertical tubular condensing chambers adapted to receive pressurized steam. Brine is directed onto the outer surfaces of the panel units at the upper ends thereof, the brine descending down the outer surfaces of the panel units to be in heat exchange relationship with the steam inside the tubular condensing chambers.
    Type: Grant
    Filed: April 7, 1978
    Date of Patent: November 25, 1980
    Assignee: The Boeing Company
    Inventors: Robert E. Fitch, Clifford R. Perry
  • Patent number: 4232734
    Abstract: The upper end portion of an upright tubular wall whose inner side is contacted by material requiring to be cooled, is surrounded by an annular receptacle for cooling water. An annular baffle extends from the receptacle towards but not into contact with the exterior of the wall; its free edge defines with the wall an annular gap. This gap is bridged by tufts of fibers which are arranged along the gap in one or more rows, so that water running from the receptacle over the baffle travels along the fibers whose free ends are in contact with the wall, and is applied to the wall of a film of uniform thickness.
    Type: Grant
    Filed: June 3, 1977
    Date of Patent: November 11, 1980
    Assignee: Buehler-Miag GmbH
    Inventors: Erich Hatje, Norbert Reinert
  • Patent number: 4199537
    Abstract: A distributor of liquid is disclosed, to be used in chemical apparatus having a bundle of tubes in the interior of which the liquid to be treated is distributed in the form of a thin film flowing on the internal surfaces of the tubes, the improvement consisting in the combination of a bell placed on the top surface of the tube plate and having liquid passageways formed along its bottom edge, a foraminous collar-like component placed at the bell top for feeding the liquid, and a plurality of distribution sleeves having the form of tubes through the sidewalls of which tangential bores are formed, there being one distribution sleeve for each tube of the bundle.
    Type: Grant
    Filed: October 13, 1978
    Date of Patent: April 22, 1980
    Assignee: Snamprogetti S.p.A.
    Inventors: Umberto Zardi, Vincenzo Lagana'
  • Patent number: 4134939
    Abstract: A distributor of liquid is disclosed, to be used in chemical apparatus having a bundle of tubes in the interior of which the liquid to be treated is distributed in the form of a thin film flowing on the internal surfaces of the tubes, the improvement consisting in the combination of a bell placed on the top surface of the tube plate and having liquid passageways formed along its bottom edge, a foraminous collar-like component placed at the bell top for feeding the liquid, and a plurality of distribution sleeves having the form of tubes through the sidewalls of which tangential bores are formed, there being one distribution sleeve for each tube of the bundle.
    Type: Grant
    Filed: September 20, 1976
    Date of Patent: January 16, 1979
    Assignee: Snamprogetti, S.p.A.
    Inventors: Umberto Zardi, Vincenzo Lagana'
  • Patent number: 4133377
    Abstract: The heat exchanger comprises at least one heat-transfer wall which forms a separation between a hot primary fluid and a secondary fluid to be heated. Each heat-transfer wall is either a vertical cylinder having a cross-section in the form of a circle with a wavy profile in the case of a tubular heat exchanger or a vertical rectangular plate having wavy corrugations in the case of a plate-type exchanger, a series of assembled plates being intended to form leak-tight compartments for receiving primary fluid and secondary fluid in alternate succession. The secondary fluid is introduced into the upper end of the heat-transfer wall in the vicinity of the wave crests of the wall face which is directed towards the fluid.
    Type: Grant
    Filed: February 8, 1977
    Date of Patent: January 9, 1979
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Jacques de Lallee, Gerard Marie, Robert Moracchioli
  • Patent number: 4039773
    Abstract: The invention relates to a control unit for electric storage heaters which are supplied with energy during low tariff periods and which give up stored energy during high tariff periods. An electronic integrator which is judiciously charged and discharged is used as a control indicator. The integrator is (1) charged to a fixed predetermined value during the high tariff period and (2) discharged starting at the beginning of the low tariff period at a rate inversely proportional to the outdoor temperature. The discharged state of the integrator is sensed and at that time, and for the remainder of the low tariff period, a signal is developed which can be used to actuate a relay to direct electrical energy to storage heaters. If the integrator does not fully discharge during the low tariff period the remaining charge is sensed and a synchronizing circuit is actuated to rapidly remove the charge prior to the start of the high tariff period.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: August 2, 1977
    Assignee: Danfoss A/S
    Inventor: Poul Christian Carlos Iversen
  • Patent number: 3995663
    Abstract: A liquid distributing device for use in the upper end of an upright tube in a vertical, tubular heat exchanger, which device comprises a ferrule having a head adapted to seat upon the upright tube, a cylindrical sleeve adapted to fit snugly within said tube, a bore in said head, and means to distribute liquid from said bore onto the inside surface of said cylindrical sleeve and then onto the inside surface of the upright tube as a falling film, whereby errosion of the tube by impingement of liquid thereon is minimized. Means are also provided to prevent building of scale within the ferrule.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: December 7, 1976
    Assignee: The Boeing Company
    Inventor: Clifford R. Perry