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EP1176381B1 - Plattenwärmetauscher - Google Patents

Plattenwärmetauscher Download PDF

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Publication number
EP1176381B1
EP1176381B1 EP01250256A EP01250256A EP1176381B1 EP 1176381 B1 EP1176381 B1 EP 1176381B1 EP 01250256 A EP01250256 A EP 01250256A EP 01250256 A EP01250256 A EP 01250256A EP 1176381 B1 EP1176381 B1 EP 1176381B1
Authority
EP
European Patent Office
Prior art keywords
nipples
section
holes
heat exchanger
plates
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
EP01250256A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1176381A2 (de
EP1176381A3 (de
Inventor
Reinhard Lehmann
Uwe Hachmeister
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.)
Kelvion PHE GmbH
Original Assignee
GEA Ecoflex GmbH
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 GEA Ecoflex GmbH filed Critical GEA Ecoflex GmbH
Priority to DK08016065.8T priority Critical patent/DK2045557T3/da
Priority to EP08016065A priority patent/EP2045557B1/de
Publication of EP1176381A2 publication Critical patent/EP1176381A2/de
Publication of EP1176381A3 publication Critical patent/EP1176381A3/de
Application granted granted Critical
Publication of EP1176381B1 publication Critical patent/EP1176381B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F28F3/10—Arrangements for sealing the margins
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/355—Heat exchange having separate flow passage for two distinct fluids
    • Y10S165/356—Plural plates forming a stack providing flow passages therein
    • Y10S165/364—Plural plates forming a stack providing flow passages therein with fluid traversing passages formed through the plate
    • Y10S165/365—Plural plates forming a stack providing flow passages therein with fluid traversing passages formed through the plate including peripheral seal element forming flow channel bounded by seal and heat exchange plates
    • Y10S165/369—Plural plates forming a stack providing flow passages therein with fluid traversing passages formed through the plate including peripheral seal element forming flow channel bounded by seal and heat exchange plates including seal to plate attachment means

Definitions

  • the present invention relates to a plate heat exchanger, consisting of successively arranged, connected to a package plates according to the preamble of claim 1.
  • a plate heat exchanger is eg in the EP 0 123 379 B1 described.
  • the seals in the grooves are defined, which facilitates the handling of the plates during assembly.
  • a known way of attaching the seals is that they are glued into the groove, the adhesive for the sealing effect itself does not matter, but the positionally correct fixation on the plates is used.
  • This adhesive technique has some disadvantages. So must the grooves before applying the adhesive z. B. are cleaned of oil and fat residues, so as not to affect the adhesive effect. Then the adhesive itself must be applied. All this is quite time consuming. Problems also occur in the maintenance of plate heat exchangers when a gasket must be replaced. To do this, remove the old seal and then clean the groove of the adhesive. Also, an inspection of the groove bottom and the seal, z. B. after cleaning work on the disassembled heat exchanger, is only possible if previously the adhesive bond is destroyed.
  • plate heat exchangers have been developed in which the seals are mechanically, so attached without adhesive to the plates.
  • One known method in the art for adhesive seal attachment is to integrally form seals with the elastic nipples or projections press fit with associated holes or openings in the plates.
  • the problem of tolerances in the radial nipple dimensions is determined by a in the EP 0 039 229 A2 solved proposed plate heat exchanger.
  • the nipples are arranged on the side of the seal, integrally provided with this webs provided, of which project the nipple down. Through the webs through a blind hole leads into the nipple.
  • the nipples are positioned above their associated holes on the plates. Then, a pin or similar tool is inserted into the blind hole and the nipples are then stretched by pressure on the pin, so that they are much thinner and can be easily inserted into the holes.
  • the nipples After removing the pin, the nipples retract to their original dimensions, expanding the ends of the nipples inserted through holes into a head covering the hole from below. The seals are thus securely attached to the plates.
  • a disadvantage of this technique is that for pressing the nipple tool is required. Furthermore, during inspections or maintenance operations that require removal of the seal, the consequences described above occur.
  • a plate heat exchanger in which the seal is secured by means integrally formed with her elastic projections which engage in associated openings in the groove base to the plate.
  • the apertures are formed to have a male and an extraction region into which the projections are free to move freely in and out of the edge of the apertures. From this area, the projections are transferable into a blocking area of the openings, in which the movement of the projections into the openings in and out of these again strong resistance by pressing between the projections and the edges of the openings is opposite, wherein the convertibility of the projections the insertion and withdrawal position in the locked position and vice versa due to the elasticity (compliance) of the seal is possible.
  • Object of the present invention is to provide a simple solution for the mechanical attachment of the seals to the plates in a plate heat exchanger of the generic type, yet allows a secure fit and easy removal of the seals.
  • the nipples are not pressed on their entire circumference when they are plugged into the holes, but only locally at the locations where they project beyond the edge of the holes. Since their cross section is smaller than the passage area of the holes, in the other places is still play between the circumference of the nipples and the edge of the holes. Due to the elasticity of the nipples whose pressed material can escape into these spaces, resulting in a reduction of the pressure and thus facilitates the pressing of the nipple in the holes. By this displacement mechanism tolerances in the radial dimensions of the nipples are compensated very well, in other words, it can be worked with larger radial excesses than is still possible in the prior art.
  • either the holes have a polygonal passage cross-section and the nipple a circular cross-section or conversely the nipples have a polygonal and the holes have a circular cross-section.
  • the edge of the holes is formed as a pointing in the insertion direction of the nipple passage.
  • This design of the holes has several advantages.
  • the contact surface between nipple and hole is increased compared to the prior art.
  • This radius also makes it possible, at the transition from the nipple to Seal to provide a radius. This has on the one hand manufacturing advantages in making the seal and on the other hand it reduces the risk that the nipples are sheared at plate movements at this point.
  • Fig. 1 shows a plate 1 of a plate heat exchanger with a heat exchange surface 2 which is framed by an inserted in a peripheral groove 3 seal 4 made of synthetic rubber or other elastic sealing material.
  • a plate heat exchanger with a heat exchange surface 2 which is framed by an inserted in a peripheral groove 3 seal 4 made of synthetic rubber or other elastic sealing material.
  • inlet and outlet openings 5-8 are provided for the heat exchange media.
  • the gasket 4 surrounds in front of and behind the plate 1, arranged in Fig. 1 plates not shown, the inlet and outlet openings 7 and 8.
  • the plate heat exchanger corresponds to the structure known from the prior art, so that no further explanation is required.
  • the gasket 4 is fixed in the groove 3 without using any adhesive.
  • integrally formed with the groove holding parts 9 are provided, which are arranged at suitable intervals from each other on the circumference of the seal 4 and protrude laterally from this.
  • FIG. 2 Such a holding part 9 is in Fig. 2 shown in perspective, which shows a marginal detail of the plate 1.
  • a second plate 1 ' which in the sectional views according to the Fig. 3-5 is apparent, has been omitted for clarity.
  • Fig. 2 shows that the groove 3 is formed from a sloping from the level of the heat exchange surface 2 inner side wall 10, a groove bottom 11 and a return to the level of the heat exchange surface 2 rising outer side wall 12, wherein the latter is followed by a plate edge 13.
  • This plate edge 13 is not flat, but formed by alternately up and down and outward opening in cross-section trapezoidal channels 14 and 15.
  • the bottoms 16 of the channels 14 are at the level of Nutenêts 11 and the bottoms 17 of the channels 15 at the level of the heat exchange surface 2.
  • This "corrugation" of the plate edge 13 is formed by the fact that the channels 14 from the sheet metal plate of the plate 1 as to the groove 3 closed troughs are pushed down.
  • Each holding part 9 engages in each case in two adjacent channels 14 and an intermediate channel 15 a. It is connected via an over its entire width extending web 21 with the seal 4, which incorporates into the upper edge of the seal 4.
  • the shape of this web 21 is off Fig. 2 not apparent, but opens from a synopsis of the cross-sectional views according to the 3 and 4 , It follows that the web 21 is thinner in the region of the bottom 17 of the channel 15, as in the region of the bridges between the two channels 14 and the outer side wall 12 of the groove 3, ie, the web 21 is reinforced in these areas.
  • the web 21 is followed by two extensions 22, which are connected to each other at its end facing the seal 4 by a cross member 23, to which, based on the plate edge 13, outwardly a thinner, the extensions 22 also connecting intermediate part 24 connects whose underside forms an extension of the web 19.
  • the projections 22 When installed, the projections 22 are located in the associated channels 14, while the intermediate piece 24 rests on the bottom 17 of the channel 15 arranged therebetween.
  • the cross section of the extensions 22 is chosen so that they are arranged through the channels 14 of the plate 1 and the channels 15 of the rear or, based on the drawing, overlying plate 1 'formed hexagonal cross-section completely fill, in other words, they are positively in the associated, facing channels 14 and 15. Since the channels 14, 15 to the outside, so open to the environment are, the holding parts 9 can expand in this direction, whereby thermal and mechanical stresses are reduced, and thus deformations of the plate edge 13 can be avoided.
  • Out Fig. 5 combined with Fig. 3 shows that the bottom 16 of the channel 14 of the plate 1 ', which is located above the intermediate part 24, is raised in the rear region by the thickness of the intermediate part 24, that is, it nestles in a sense from above to the intermediate part 24.
  • Out Fig. 3 It can also be seen that the cross member 23 substantially fills the cavity 20 formed under the bridge 19 in the assembled state.
  • the described positive formation of the holding parts 9 with the plates 1, 1 'covering them stabilizes the orientation of the plates 1, 1' in the plate pack and prevents or reduces movements of the plates 1, 1 'in cooperation with conventional metallic guide elements formed on the plates the plate level in operation due to the internal pressure of the heat exchange media.
  • an integrally formed with the holding part 9 nipple 25 is provided, which protrudes from the intermediate part 24 down and protrudes when mounted seal 4, a circular hole 26 in the plate 1.
  • the edge of this hole 26 is formed as a plug-in direction of the nipple 25 facing passage 27.
  • the radius formed by the passage 27 at the edge of the hole facilitates the insertion of the nipple 25 in the hole 26.
  • the transition of the nipple 25 to the intermediate part 24 can also be performed with this radius.
  • This training reduces on the one hand acting on the nipple 25 from the edge of the hole 26 shearing forces and facilitates the other production, since radii can be better realized in a mold.
  • the tip of the nipple 25 is frustoconical.
  • the nipple 25 has deviating from the circular cross section of the hole 26 has a trigonal cross section, the edges 29 are rounded.
  • This training is best Fig. 6 out.
  • a nipple cross-section enclosing circle 28 is located.
  • the diameter D1 of this circle 28 is greater than the inner diameter D2 of the hole 26.
  • the cross-sectional area of the nipple 25 is smaller than the passage cross-section of the hole 26.
  • nipple 25 If the nipple 25 is pressed in the assembly of the seal 4 in the hole 26, it centers itself due to its conical tip and the radius at the edge of the hole itself. At the same time its penetration into the hole 26 is facilitated. Upon further impressions of the nipple 25, its material is compressed to the over the inner diameter of the hole 26 protruding positions, which are in this case the rounded edges 29, together. But it can escape because of its elasticity in the free spaces between the cross section of the nipple 25 and the hole inner wall. In Fig. 7 These free spaces are provided with the reference numeral 30.

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)
  • Fuel Cell (AREA)
  • Separation By Low-Temperature Treatments (AREA)
EP01250256A 2000-07-22 2001-07-11 Plattenwärmetauscher Expired - Lifetime EP1176381B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK08016065.8T DK2045557T3 (da) 2000-07-22 2001-07-11 Pladevarmeveksler
EP08016065A EP2045557B1 (de) 2000-07-22 2001-07-11 Plattenwärmeaustauscher

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10035776 2000-07-22
DE10035776A DE10035776C1 (de) 2000-07-22 2000-07-22 Plattenwärmetauscher

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP08016065A Division EP2045557B1 (de) 2000-07-22 2001-07-11 Plattenwärmeaustauscher

Publications (3)

Publication Number Publication Date
EP1176381A2 EP1176381A2 (de) 2002-01-30
EP1176381A3 EP1176381A3 (de) 2004-04-07
EP1176381B1 true EP1176381B1 (de) 2009-02-25

Family

ID=7649884

Family Applications (2)

Application Number Title Priority Date Filing Date
EP01250256A Expired - Lifetime EP1176381B1 (de) 2000-07-22 2001-07-11 Plattenwärmetauscher
EP08016065A Expired - Lifetime EP2045557B1 (de) 2000-07-22 2001-07-11 Plattenwärmeaustauscher

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08016065A Expired - Lifetime EP2045557B1 (de) 2000-07-22 2001-07-11 Plattenwärmeaustauscher

Country Status (8)

Country Link
US (1) US6513584B2 (da)
EP (2) EP1176381B1 (da)
KR (2) KR100850622B1 (da)
CN (1) CN1249397C (da)
AT (2) ATE423953T1 (da)
DE (3) DE10035776C1 (da)
DK (2) DK1176381T3 (da)
ES (2) ES2321909T3 (da)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10054330A1 (de) * 2000-11-02 2002-05-08 Bosch Gmbh Robert Guß-Blech-Verbundkörper sowie Verfahren zu dessen Herstellung
DE10354311B4 (de) * 2003-11-20 2009-09-17 Lurgi Gmbh Reaktor zur kontinuierlichen Durchführung einer chemischen Mehrphasenreaktion
FR2910607B1 (fr) * 2006-12-21 2009-02-06 Alfa Laval Vicard Soc Par Acti Echangeur thermique a plaques
DE102007021420A1 (de) 2007-05-02 2008-11-06 Gerd Wurster Wärmetauscher, Verdampfungs-Kälteanlage und verfahrenstechnische Behandlungsanlage für Werkstücke
HUE036903T2 (hu) * 2013-01-30 2018-08-28 Alfa Laval Corp Ab Rögzítõeszköz, tömítési elrendezés és összeállítás
DK177634B1 (en) * 2013-03-08 2014-01-13 Danfoss As Fixing gasket in plate type heat exchanger
DK2886998T3 (da) * 2013-12-18 2018-06-18 Alfa Laval Corp Ab Fastgørelsesmiddel, pakningsanordning, varmevekslerplade og enhed
EP3001131A1 (en) * 2014-09-26 2016-03-30 Alfa Laval Corporate AB A porthole gasket for a plate heat exchanger, a plate package and a plate heat exchanger with such a porthole gasket
CN106403670A (zh) * 2016-11-30 2017-02-15 洛阳瑞昌石油化工设备有限公司 一种非焊接式纯逆流板式换热器
EP3489606A1 (en) * 2017-11-22 2019-05-29 Danfoss A/S Heat transfer plate for plate heat exchanger and plate heat exchanger with the same
US10663235B2 (en) * 2018-01-12 2020-05-26 Spx Flow, Inc. Gasket retention system
PL3587984T3 (pl) * 2018-06-28 2021-04-06 Alfa Laval Corporate Ab Płyta wymiennika ciepła i uszczelka
WO2020141983A1 (en) 2019-01-04 2020-07-09 Secespol Spółka Z O.O. A gasket for a plate-type gasketed heat exchanger
RU2738541C1 (ru) * 2019-10-31 2020-12-14 Данфосс А/С Теплообменная пластина
DK180498B1 (en) * 2019-11-07 2021-05-27 Danfoss As Heat exchanger plate
US12135176B2 (en) * 2021-07-20 2024-11-05 WCR Inc. Plate heat exchanger gasket

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Also Published As

Publication number Publication date
ES2321909T3 (es) 2009-06-15
KR20020009421A (ko) 2002-02-01
DE50114721D1 (de) 2009-04-09
KR100868853B1 (ko) 2008-11-14
CN1249397C (zh) 2006-04-05
DK1176381T3 (da) 2009-06-15
ATE487914T1 (de) 2010-11-15
KR20080036969A (ko) 2008-04-29
KR100850622B1 (ko) 2008-08-05
EP1176381A2 (de) 2002-01-30
US20020074112A1 (en) 2002-06-20
DE50115706D1 (de) 2010-12-23
US6513584B2 (en) 2003-02-04
EP1176381A3 (de) 2004-04-07
CN1334434A (zh) 2002-02-06
ES2352532T3 (es) 2011-02-21
EP2045557A1 (de) 2009-04-08
DE10035776C1 (de) 2001-12-13
EP2045557B1 (de) 2010-11-10
ATE423953T1 (de) 2009-03-15
DK2045557T3 (da) 2011-02-07

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