US3690373A - Plate heat exchangers - Google Patents

Plate heat exchangers Download PDF

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Publication number
US3690373A
US3690373A US867278A US3690373DA US3690373A US 3690373 A US3690373 A US 3690373A US 867278 A US867278 A US 867278A US 3690373D A US3690373D A US 3690373DA US 3690373 A US3690373 A US 3690373A
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US
United States
Prior art keywords
container
manifold
heat exchanger
plates
inlet end
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.)
Expired - Lifetime
Application number
US867278A
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English (en)
Inventor
Felix William Wright
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.)
SPX Flow Technology Crawley Ltd
Original Assignee
APV Corp Ltd
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Filing date
Publication date
Application filed by APV Corp Ltd filed Critical APV Corp Ltd
Application granted granted Critical
Publication of US3690373A publication Critical patent/US3690373A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/083—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning capable of being taken apart
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters

Definitions

  • a plate type heat exchanger is provided with a permeable container in the inlet manifold formed by aligned holes in the plates.
  • the container collects solid materials entrained in the feed liquid and may be withdrawn for emptying or replacement when full.
  • the solids which may need to be removed before the liquid enters the heat exchanger flow passages include detached pipe line scale and live material grown in the pipework.
  • the container may be open-topped or of closed section and means may be provided for spacing it from the edges of the holes forming the manifold.
  • PLATE HEAT EXCHANGERS BACKGROUND OF THE INVENTION This invention relates to plate heat exchangers and to methods of operating the same.
  • each plate may have four holes or ports, one at each corner, two of which allow a portion of one medium to enter, flow through and exit from the individual flow space and the other two are sealed off from the flow space by a gasket such that the second medium is constrained to flow through these ports.
  • a number or pack of plates is as isolated with the ports in alignment to provide manifolds whereby the total quantity of medium which it is desired to heat or cool enters one of the manifolds and there is a continuous reduction in the quantity flowing through as portions of medium enter the successive alternate flow spaces.
  • the second medium flows through the intervening flow spaces.
  • the plates are normally mounted in a frame having flow connections aligned with the port manifolds for connection to external pipework.
  • the ports are all of the same size in any plate pack, and must be large enough to permit the entry of the whole quantity of the medium into the port manifold without undue energy loss, but as described, the quantity flowing along the manifold is successively reduced until at the end opposite the entry, the amount is reduced to the last portion of the medium which enters the last flow space, and consequently there is a reduction of velocity along the port manifold.
  • the entry and exit of liquid media to the port manifolds is normally arranged by providing connections of suitable size and position in the frame which is used to support and contain the plate pack, and these connections are aligned with the manifolds.
  • the present invention consists in a plate heat exchanger comprising a pack of separable and gasketted plates arranged in spaced face-to-face relationship to define flow spaces therebetween and inlet and outlet manifolds for two fluids for the flow spaces are defined by aligned holes in the plate, a permeable container providing a settling chamber being located in at least one of the inlet manifolds and extending along the manifold from the inlet end thereof whereby the fluid entering said last-mentioned manifold is fed into the container and flows therethrough before entering the flow passages between adjacent plates so that solid particles of substantial size are inhibited from entering the flow passages.
  • the container is releasably secured in the manifold so that it can be removed therefrom without dismantling the pack of plates, and solid material collected therein can be cleaned out.
  • the container can be open-topped over part or all of its length so the bulk of the flow into the flow spaces is not restricted by the container.
  • the invention further consists in operating a plate heat exchanger comprising a pack of plates in spaced face-to-face relationship to define flow spaces therebetween and having manifolds for supply and discharge of fluid media to and from the flow spaces, comprising feeding at least one of the media into a permeable container mounted in the supply manifold so that the medium flows through the container before entering the flow spaces whereby solid material entrained in said medium is retained in the container and inhibited from entering the flow space and entry passages thereto.
  • FIG. 1 is a diagrammatic elevation of a single plate
  • FIG. 2 is an enlarged section on the line II-II of FIG. 1 of a number of plates assembled as a pack;
  • FIG. 3 is an elevation of one example of a container
  • FIG. 4 is an end view of the container of FIG. 3;
  • FIG. 5 is a diagrammatic elevation of an assembled plate pack in the containing frame with one example of a medium connection and a container inserted along the supply manifold;
  • FIGS. 6 and 7 are views similar to FIG. 5 showing further examples of assembled plate packs with containers
  • FIG. 8 is a detail of the container and liquid connection
  • FIG. 9 is a detail of the manifold/container relationshi P IG. 10 is a detail of a container mounting;
  • FIG. 11 is a view similar to FIG. 9, of a further preferred embodiment.
  • FIG. 12 is a view similar to FIG. 4 of an alternative form of container.
  • FIG. 1 shows a plate 1 with entry and exit ports 2 and 3 for one medium, and gasketted through-ports 4 and 5 for the other medium.
  • a peripheral gasket 6 defines the flow space for one medium.
  • Alternate plates in the pack are arranged so that entry ports 2 and 3 align with 7 through ports 4 and 5 as seen in FIG. 2.
  • FIG. 2 Also shown by FIG. 2 is the relationship between medium flowing through the port manifold by way of the entry point at X and the continual reduction of flow volume in the port by drawing ofi of equal portions entering the flow passages between plates at Y.
  • FIGS. 3 and 4 show one type of container, which constitutes a settling chamber, a wall 7 of which is permeable to allow liquid to pass through but to retain solid particles or bodies of a size larger than a given limit.
  • the container is in the form of wire mesh.
  • FIG. 5 shows an assembled plate pack 8 contained in a frame 9 having frame connections aligned with the port manifolds and showing connecting pipework forming a supply line 10 to one of the port manifolds.
  • Port 2 of FIG. 1 has been used in this example.
  • a container similar to that of FIG. 3 is shown installed in the port manifold. Liquid and solids entering through the supply line 10 will pass into the container within the port manifold. As the quantity flowing is successively reduced, the solids will tend to settle out in the container, particularly at the end farthest from the entry where the quantity flowing is much reduced. The liquid medium passes easily through the container wall as required.
  • connections may be readily arranged in such a way as to permit extraction of the container from time to time as required without the necessity of dismantling the frame and plate pack.
  • a blank flange at 11 can be removed, the container withdrawn, emptied and replaced, the blank flange replaced and the exchanger restored to operation. in a much shorter space of time than would be required for dismantling the whole plate pack assembly.
  • This flange 11 may be bolted on, but for ease and speed of removal, it may be securedby a quick-release clamp.
  • FIG. 6 shows an alternative arrangement where the medium is arranged to flow through two sections of plate pack in succession.
  • the container cannot be withdrawn at the opposite end to the medium inlet but by using a tee-piece connection 12 the container may be withdrawn from the same end of the port manifold as the medium inlet connection.
  • FIG. 7 shows a further alternative where the inlet connection is positioned at the top of the exchanger.
  • a container which is fully circular in cross-section is therefore a hollow cylinder the wall of which is permeable as described and one end of which preferably closed, with the opposite end being open to permit the entry of the medium into the container.
  • a circular container may be of such a size in cross-section that the distance Z in FIG. 8 from the container wall to the inside surface of the liquid connection is small compared to the size of perforation in the container wall whereby only particles which are considerably smaller than the given limit of those particles retained in the container can enter the manifold without passing through the container wall.
  • the limit of particle size may be very small and hence the container wall perforations are small so that it is preferable to provide a seal at the open end of the container engaging with the liquid connection wall.
  • FIG. 10 An example of this is given in FIG. 10 where the open end of the container is attached to a ring 15, in the periphery of which is formed a housing groove which contains a resilient gasket 16.
  • a seal against medium flow is provided as for example by the well known principle of rubber O-ring seals.
  • all the medium flowing along the supply line 10 is constrained to flow through the ring 15 and consequently can only enter the plate passages by way of the container wall.
  • the seal ring 15, and seal 16 are cooperating with the bore of the connecting pipe. This is perfectly feasible but in practice it is easier to provide a machined bore of accurate diameter in the frame mounted connection so that the surface on which the O-ring seals is entirely associated with the frame.
  • a container 21 in order to provide location of a container 21, it may be provided with a plurality of circumferentially spaced rods 22, one of which is illustrated, extending over all or part of its length.
  • the rods 22 are provided at intervals with localized bushings 23 which engage with the ports of several adjacent plates to locate and centralize the container 21 in the port manifold.
  • the local interruption of flow into the spaces between the plates is a slight disadvantage but is not too great if the bushings are not too numerous or too large.
  • the rods 22 are anchored in a ring, such as the ring 15 of FIG. 10, to attach them to the container 21.
  • the bushings 23 may entail some increase in the clearance W which they span, but the ring 15 may be dimensioned accordingly to provide a close fit in the inlet pipe, preferably sufficiently close to eliminate the I need for a sealing ring 16.
  • the container may be a means for withdrawal such as a handle or hook, or in a further alternative, the end of the container may be secured to the blank flange 1 1 for purposes of location.
  • a permeable container providing a settling chamber is located in at least on of the inlet manifolds, said container extending along the manifold from the inlet end thereof whereby the fluid entering said last mentioned manifold is fed into the container and flows therethrough before entering the flow passages between adjacent plates so that solid particles of substantial size are inhibited from entering the flow passages.
  • the heat exchanger as claimed in claim 2 comprising a tee piece connection having a stem connection and two aligned branch connections, the stem connection being connectable to external pipework, one of the branch connections being connected to the inlet end of the manifold and a removable cover being provided on the other branch connection for access to the container.
  • each hole has a rim and wherein localized spacers are provided to engage the rims of the holes to locate and centralize the container in the manifold.
  • the heat exchanger as claimed in claim 8 comprising a plurality of longitudinally extending rods spaced circumferentially about the container, with said rods carrying bushings to act as said localized spacers.
US867278A 1968-10-29 1969-10-17 Plate heat exchangers Expired - Lifetime US3690373A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB51197/68A GB1207919A (en) 1968-10-29 1968-10-29 Improvements in or relating to plate heat exchangers

Publications (1)

Publication Number Publication Date
US3690373A true US3690373A (en) 1972-09-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
US867278A Expired - Lifetime US3690373A (en) 1968-10-29 1969-10-17 Plate heat exchangers

Country Status (4)

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US (1) US3690373A (de)
DE (1) DE1952166C3 (de)
FR (1) FR2021827A7 (de)
GB (1) GB1207919A (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176713A (en) * 1976-02-12 1979-12-04 Helmut Fisher Plate-type heat exchanger
US4207942A (en) * 1977-09-26 1980-06-17 A.P.V. Company Limited Plate heat exchangers
US5307868A (en) * 1991-05-24 1994-05-03 Electricite De France-Service National Device for preventing choking in plate heat exchangers
US5392849A (en) * 1990-09-28 1995-02-28 Matsushita Refrigeration Company Layer-built heat exchanger
US20040069450A1 (en) * 2000-12-22 2004-04-15 Goran Anderson Component for supporting a filter member, a device including a tubular filter member and said component, a plate heat exchanger including a tubular filter member and said component
US20040177950A1 (en) * 2003-02-06 2004-09-16 Modine Manufacturing Co. Stacked plate heat exchanger with integrated connector
WO2008019659A1 (de) * 2006-08-18 2008-02-21 Gea Ecoflex Gmbh Plattenwärmetauscher
EP2255862A1 (de) * 2009-04-28 2010-12-01 DEUTZ Aktiengesellschaft Rückhaltevorrichtung
CN103217056A (zh) * 2013-04-17 2013-07-24 山东华昱压力容器有限公司 自除污板式热交换器
CN104422316A (zh) * 2013-08-19 2015-03-18 上海熊猫机械(集团)有限公司 自过滤排污板式换热器
US20180320994A1 (en) * 2016-02-17 2018-11-08 Ihi Corporation Heat treatment apparatus
US10495390B2 (en) * 2018-02-08 2019-12-03 Tsung-Hsien Huang Liquid cooling radiator with impurities filtering
FR3107112A1 (fr) * 2020-02-12 2021-08-13 Valeo Systemes Thermiques Échangeur thermique à dispositif de purification pour véhicule automobile
US20220268537A1 (en) * 2019-08-01 2022-08-25 Zvi Livni Self cleaning filtering apparatus for plate heat exchangers

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764254A (en) * 1987-05-21 1988-08-16 Rosenblad Corporation Falling film liquor heater having a screen to prevent clogging of a liquid distributing tray
DE19624358B4 (de) * 1996-06-19 2005-07-14 Mann + Hummel Gmbh Wärmetauscher
FR2763118B1 (fr) 1997-05-09 1999-08-06 Packinox Sa Dispositif d'injection de fluides sous pression dans un echangeur thermique a plaques et procede de nettoyage d'un tel dispositif d'injection
EP1734311B2 (de) † 2005-06-17 2016-07-20 Helmut Bälz GmbH Wärmetauschereinrichtung mit Plattenwärmetauscher und Strahlpumpe
DE202008004582U1 (de) 2007-04-16 2008-06-19 Viessmann Werke Gmbh & Co Kg Plattenwärmetauscher
DE102010042645A1 (de) * 2010-10-19 2012-04-19 Dürr Systems GmbH Anlage zur Übertragung von Wärme oder von Kälte auf fluides Medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1554924A (en) * 1923-02-16 1925-09-22 Charles H Shapiro Radiator
US2082866A (en) * 1935-05-13 1937-06-08 Clarence L George Radiator water filter
US2287958A (en) * 1937-08-27 1942-06-30 Astle William Heat exchange apparatus
US3511311A (en) * 1967-03-17 1970-05-12 Danske Mejeriers Mas Fab A M B Corner blocks for intermediate plates in plate heat exchangers

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE229510C (de) *
FR646832A (fr) * 1928-01-07 1928-11-16 Vickers Ltd Perfectionnements aux échangeurs de chaleur
AT168325B (de) * 1944-12-30 1951-05-25 Rosenblads Patenter Ab Oberflächen-Warmeaustaucher
GB637225A (en) * 1946-03-19 1950-05-17 Kenneth Arthur Spearing Improvements in and relating to heat interchangers
AT173711B (de) * 1948-01-20 1953-01-26 Intern Octrooi Mij Octropa Nv Wärmeaustauscher
FR1345756A (fr) * 1962-11-02 1963-12-13 Alfa Laval Ag échangeur de chaleur
GB1083651A (en) * 1965-07-21 1967-09-20 Steel Radiators Ltd Improvements in or relating to space heating radiators

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1554924A (en) * 1923-02-16 1925-09-22 Charles H Shapiro Radiator
US2082866A (en) * 1935-05-13 1937-06-08 Clarence L George Radiator water filter
US2287958A (en) * 1937-08-27 1942-06-30 Astle William Heat exchange apparatus
US3511311A (en) * 1967-03-17 1970-05-12 Danske Mejeriers Mas Fab A M B Corner blocks for intermediate plates in plate heat exchangers

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176713A (en) * 1976-02-12 1979-12-04 Helmut Fisher Plate-type heat exchanger
US4207942A (en) * 1977-09-26 1980-06-17 A.P.V. Company Limited Plate heat exchangers
US5392849A (en) * 1990-09-28 1995-02-28 Matsushita Refrigeration Company Layer-built heat exchanger
US5307868A (en) * 1991-05-24 1994-05-03 Electricite De France-Service National Device for preventing choking in plate heat exchangers
US20040069450A1 (en) * 2000-12-22 2004-04-15 Goran Anderson Component for supporting a filter member, a device including a tubular filter member and said component, a plate heat exchanger including a tubular filter member and said component
US7287575B2 (en) * 2000-12-22 2007-10-30 Alfa Laval Corporate Ab Component for supporting a filter member, a device including a tubular filter member and said component, a plate heat exchanger including a tubular filter member and said component
US20040177950A1 (en) * 2003-02-06 2004-09-16 Modine Manufacturing Co. Stacked plate heat exchanger with integrated connector
WO2008019659A1 (de) * 2006-08-18 2008-02-21 Gea Ecoflex Gmbh Plattenwärmetauscher
EP2255862A1 (de) * 2009-04-28 2010-12-01 DEUTZ Aktiengesellschaft Rückhaltevorrichtung
CN103217056A (zh) * 2013-04-17 2013-07-24 山东华昱压力容器有限公司 自除污板式热交换器
CN104422316A (zh) * 2013-08-19 2015-03-18 上海熊猫机械(集团)有限公司 自过滤排污板式换热器
US20180320994A1 (en) * 2016-02-17 2018-11-08 Ihi Corporation Heat treatment apparatus
US10495390B2 (en) * 2018-02-08 2019-12-03 Tsung-Hsien Huang Liquid cooling radiator with impurities filtering
US20220268537A1 (en) * 2019-08-01 2022-08-25 Zvi Livni Self cleaning filtering apparatus for plate heat exchangers
FR3107112A1 (fr) * 2020-02-12 2021-08-13 Valeo Systemes Thermiques Échangeur thermique à dispositif de purification pour véhicule automobile
WO2021160971A1 (fr) * 2020-02-12 2021-08-19 Valeo Systemes Thermiques Échangeur thermique à dispositif de purification pour véhicule automobile

Also Published As

Publication number Publication date
GB1207919A (en) 1970-10-07
DE1952166A1 (de) 1970-10-29
DE1952166B2 (de) 1975-05-15
DE1952166C3 (de) 1976-01-08
FR2021827A7 (de) 1970-07-24

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