EP0215934A1 - Heat exchanger. - Google Patents
Heat exchanger.Info
- Publication number
- EP0215934A1 EP0215934A1 EP86902368A EP86902368A EP0215934A1 EP 0215934 A1 EP0215934 A1 EP 0215934A1 EP 86902368 A EP86902368 A EP 86902368A EP 86902368 A EP86902368 A EP 86902368A EP 0215934 A1 EP0215934 A1 EP 0215934A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- heat
- channels
- channel
- plate
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims description 9
- 230000001427 coherent effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 101150054274 Hnrnpd gene Proteins 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/04—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being formed by spirally-wound plates or laminae
-
- 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
- Y10S165/398—Spirally bent heat exchange plate
Definitions
- the invention relates to a heat exchanger with two mutually extending, spiral channels for the passage of a heat-emitting and a heat-absorbing medium, with two plates closing the channels on the end face and with an inlet and a Auf1 ouö réelle for each channel.
- Such a heat exchanger is described and shown in DE-GM 66 05 139.
- the channel walls consist of two sheet metal strips, namely a so-called outer band and a so-called inner band.
- the outer band is bent at one axial end towards the inner band and welded to it, so that the channel is sealed off on this end face.
- the other channel is sealed in a corresponding manner on the other end by welding the two metal strips.
- This construction makes cleaning the heat exchanger more difficult, because on the one hand each channel is only accessible from one end face after removal of the corresponding plate, and on the other hand contaminations can accumulate on the welding face opposite the open end face of the channel, which is very difficult or not at all can be removed.
- Another disadvantage is the production of this heat exchanger, which is labor-intensive due to the cranking and welding.
- DE-PS 128 288 relates to a liquid cooling device with a square base whose channels for the passage of the liquid to be cooled, for example beer, run approximately in a helical shape and are deflected at right angles at the square corners.
- the channels are formed by two plates with approximately helical indentations, semicircular in cross section, and a flat intermediate plate. To cool the liquid, this heat exchanger must be placed in a cooling container.
- the invention has for its object to provide a heat exchanger of the type outlined at the outset, which is so simply constructed that it not only allows inexpensive manufacture, but, above all, can also be easily disassembled so that it can be used if required to be able to clean thoroughly. Despite the possibility of simple and rapid dismantling, the perfect sealing of the channels should not be impaired.
- this object is achieved in a heat exchanger of the type specified in that the spiral wall surfaces delimiting the channels radially outwards and inwards have a straight line and that the axial ends of the channel walls are pressed against an elastically flexible sealing surface, the projected on the opposite plate see he nest.
- the channel walls can be bent from a simple sheet metal strip in an approximately spiral manner without their axial ends being welded or the like. must be connected to each other to close off the channels.
- the function of the duct closure and the mutual sealing of the ducts is performed by the elastically flexible sealing surface into which the axial ends of the duct walls are pressed.
- the de Kanalinhon ⁇ strip consist of both channels of a single, coherent sheet-metal, the t ⁇ -'s is spirally bent toward the center to überzu ⁇ go at this point in the leading to the outside, second spiral.
- the sealing surface consists of a sealing disk attached to the respective plate, a pressure medium (air or liquid) being able to be introduced between the latter and the plate.
- a pressure medium air or liquid
- the channel walls and the plates can be held together by means of clamping means, which not only makes assembly easier, but above all disassembly for cleaning purposes.
- an end plate of the heat exchanger simultaneously covers an axially connected second heat exchanger of the same type, with a passage opening for the heat-absorbing medium and a passage opening in the middle area of this intermediate plate for the heat-dissipating medium flowing in countercurrent are incorporated.
- Such a twin heat exchanger with counterflow operation has an excellent efficiency and, due to its compact design and its small outer surface, only low heat losses.
- FIG. 1 shows a horizontal section through a twin ' heat exchanger according to the invention ' ,
- FIG. 2 shows a perspective view of the right half of the heat exchanger in FIG. 1 with the plates removed
- FIG. 3 shows a view corresponding to FIG. 2 of the left part of the heat exchanger in FIG. 1,
- FIG. 4 shows a perspective view of the intermediate plates separating the two heat exchangers according to FIGS. 2 and 3
- Figure 5 is a perspective view of a plate provided on the end faces.
- the channels of the "twin heat exchanger" are covered on both ends by a plate 10 and in the middle by an intermediate plate 10 ' .
- the plates are made of steel, for example.
- Each of the two heat exchangers of the twin heat exchanger has two spiral channels 12 and 14 which run into one another, of which the channel 12 is used for the passage of a heat-emitting medium and the channel 14 for the passage of a heat-absorbing medium; of course, this can also be the other way round.
- the channel walls 16 consist of an initially flat sheet metal strip, for example made of sheet steel, which extends up to the middle region. is spiraled inwards; the same sheet metal strip is then spirally bent outwards (see FIGS. 2 and 3). In this way, the two mutually diverging, spiral channels 12 and 14 result.
- the heat exchanger On the lateral surface, the heat exchanger is closed off by a cylindrical sleeve 18, from each of which a flange 20 protrudes radially outward at both ends, which flange is connected to the plate 10 or the intermediate plate 10 ' via screws 22 (not shown) .
- a sealing washer 24 made of elastically resilient material, for example rubber or plastic, is provided on the inside of each plate 10 and 10 ' , against which the axial ends of the channel walls 16 are pressed.
- the screws 22 create a clamp between the channel walls 16 and the plates 10, 10 ' , so that, as indicated above all in FIG. 1, the axial ends of the channel walls 16 press into these sealing disks 24.
- the sealing washer 24 of the intermediate plate 10 ' is firmly connected to the entire surface thereof, while there is an intermediate space 26 between the opposing sealing washer 24 and the outer plate 10, into which a pressure medium is connected via a connecting line 28 (Liquid or gas) can be introduced.
- This pressure medium improves the sealing of the channels 12 and 14 from one another and to the outside and compensates for deformations of the plate 10 which are triggered by the internal pressure in the heat exchanger. can .
- spacing pins 30 are attached to the sheet metal strip forming the channel walls 16 at certain intervals, which are indicated in FIGS in alignment and thereby keep the channel walls 16 at the desired distance from one another.
- the external diameter of the heat exchanger is preferably not increased, but rather the axial expansion of the heat exchanger over the width of the sheet metal strips.
- FIG. 4 it is indicated that for the assembly of the twin heat exchanger, fastening tabs 34 can be attached to the intermediate plate 10 ' , at the ends of which the two plate 10 provided on the end face can be fastened.
- the intermediate plate 10 ' is attached to a base plate 38, on which two strips 39 are provided which run parallel to the intermediate plate 10 ' , the spacing of which corresponds approximately to the width of the channel walls 16, and between them the respective heat exchanger with its plate 10 which closes at the end take up.
- the fastening tabs 36 ' are equipped with a fastening eye 40 which corresponds to two fastening eyes 40 ' provided on the intermediate plate 10 ' .
- the fastening bosses 40, ⁇ 40 'are interconnected can. This design results in a particularly simple disassembly option for the heat exchanger, the cleaning of which is thereby made much easier.
- FIG. 5 shows one of the plates 10 provided on the end face, on which fastening eyes 42 or the like. are provided which can be connected to the ends of the fastening tabs 36 provided on the intermediate bracket 10 ' .
- the medium to be cooled flows, for example, via the inlet opening 32 in the heat exchanger on the right in FIG. 1 into the channel 12 to the center, where it flows into the corresponding channel 12 via a passage opening 44 in the intermediate plate 10 ' of the neighboring heat exchanger flows and leaves it via the outlet opening 34.
- the cooling medium absorbing the emitted heat initially flows in countercurrent via the inlet opening 32 shown in FIG. 3 into the channel 14 of the heat exchanger on the left in FIG. 1, where it flows through the passage opening 46 into the corresponding channel 14 in the figure 1 flows over the right heat exchanger and leaves it through the outlet opening 34.
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)
Abstract
Un échangeur de chaleur comprend deux canaux (12, 14) en spirale, l'un à l'intérieur de l'autre, dans lesquels s'écoulent un milieu délivrant de la chaleur et un milieu absorbant de la chaleur. Deux plaques (10, 10') ferment la partie antérieure des canaux (12,14), chaque canal ayant un orifice d'admission (32) et un orifice d'évacuation (34). Afin d'obtenir une unité compacte et aisément démontable, et d'assurer l'étanchéité des canaux (12, 14), les parois en spirale qui délimitent radialement les canaux (12, 14) vers l'intérieur et vers l'extérieur forment une génératrice droite, et les extrémités axiales des parois (16) des canaux sont comprimées contre une surface élastique d'étanchéité formée dans la plaque opposée correspondante (10, 10').A heat exchanger has two spiral channels (12, 14), one inside the other, through which a heat-delivering medium and a heat-absorbing medium flow. Two plates (10, 10 ') close the anterior part of the channels (12,14), each channel having an inlet port (32) and an outlet port (34). In order to obtain a compact and easily removable unit, and to ensure the sealing of the channels (12, 14), the spiral walls which radially delimit the channels (12, 14) inward and outward form a straight generatrix, and the axial ends of the channel walls (16) are pressed against an elastic sealing surface formed in the corresponding opposing plate (10, 10 ').
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT86902368T ATE51441T1 (en) | 1985-03-14 | 1986-03-14 | HEAT EXCHANGER. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3509226 | 1985-03-14 | ||
DE3509226A DE3509226C2 (en) | 1985-03-14 | 1985-03-14 | Heat exchanger |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0215934A1 true EP0215934A1 (en) | 1987-04-01 |
EP0215934B1 EP0215934B1 (en) | 1990-03-28 |
Family
ID=6265236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86902368A Expired - Lifetime EP0215934B1 (en) | 1985-03-14 | 1986-03-14 | Heat exchanger |
Country Status (4)
Country | Link |
---|---|
US (1) | US4907647A (en) |
EP (1) | EP0215934B1 (en) |
DE (2) | DE3509226C2 (en) |
WO (1) | WO1986005579A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8918446D0 (en) * | 1989-08-12 | 1989-09-20 | Stokes Keith H | Heat exchange apparatus |
US5787974A (en) * | 1995-06-07 | 1998-08-04 | Pennington; Robert L. | Spiral heat exchanger and method of manufacture |
US5799961A (en) * | 1996-06-17 | 1998-09-01 | Schmeets; Harold H. | Quick-attachable trailer step |
DE19837923C1 (en) * | 1998-08-20 | 2000-01-20 | Hans Biermaier | Thermal sterilizer for liquids, such as drinking water, which uses a counter current flow spiral heat exchanger |
AU1512899A (en) * | 1998-10-02 | 2000-04-26 | Erling Vage | Heat exchanger construction, method and apparatus for producing same, and use ofthe heat exchanger |
HU229432B1 (en) * | 2001-09-25 | 2013-12-30 | Honda Motor Co Ltd | Heat accumulation unit and method of manufacturing the unit |
US11703285B1 (en) * | 2023-02-27 | 2023-07-18 | Helen Skop | Apparatus and method for latent energy exchange |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE128288C (en) * | ||||
DE594278C (en) * | 1930-07-26 | 1934-03-14 | Curt Rosenblad | Device for heat transfer, in which the heat transfer surfaces are made of spirally wound sheets |
NL37360C (en) * | 1933-07-18 | |||
NL43777C (en) * | 1935-05-13 | |||
DE666910C (en) * | 1937-02-25 | 1938-10-31 | Albert Benteli | Heat exchanger with a number of sheets wound in a spiral shape |
US2131265A (en) * | 1937-03-01 | 1938-09-27 | Dow Chemical Co | Spiral heat interchanger and method of making same |
DE862757C (en) * | 1937-11-30 | 1953-01-12 | Rosenblads Patenter Ab | Heat exchanger, consisting of stacked plate bodies with guide channels |
US2736533A (en) * | 1953-03-26 | 1956-02-28 | John L Allen | Heat exchange apparatus |
DE6605139U (en) * | 1967-03-25 | 1970-04-16 | Edmund Schauff | HEAT EXCHANGER WITH SPIRAL THROUGH FLOW CHANNELS. |
DE1908385A1 (en) * | 1968-08-09 | 1970-06-04 | Schwermaschb Karl Liebknecht V | Spiral form heat exchanger |
DE1913226B1 (en) * | 1969-03-15 | 1970-08-27 | Krupp Gmbh | Heat exchanger consisting of hollow disks |
SE418223B (en) * | 1972-06-02 | 1981-05-11 | Aga Ab | VERMEVEXLARE |
US3921713A (en) * | 1973-12-26 | 1975-11-25 | Zachry Co H B | Heat exchanger |
GB2132330A (en) * | 1982-12-20 | 1984-07-04 | Apv Co Ltd | Spiral heat exchanger |
DE3319521A1 (en) * | 1983-05-28 | 1984-11-29 | Kienzle Apparate Gmbh, 7730 Villingen-Schwenningen | HEAT EXCHANGER FOR LIQUID MEDIA |
-
1985
- 1985-03-14 DE DE3509226A patent/DE3509226C2/en not_active Expired - Fee Related
-
1986
- 1986-03-14 EP EP86902368A patent/EP0215934B1/en not_active Expired - Lifetime
- 1986-03-14 WO PCT/EP1986/000143 patent/WO1986005579A1/en not_active Application Discontinuation
- 1986-03-14 DE DE8686902368T patent/DE3669917D1/en not_active Revoked
-
1988
- 1988-07-11 US US07/220,372 patent/US4907647A/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO8605579A1 * |
Also Published As
Publication number | Publication date |
---|---|
US4907647A (en) | 1990-03-13 |
WO1986005579A1 (en) | 1986-09-25 |
DE3509226A1 (en) | 1986-09-18 |
DE3669917D1 (en) | 1990-05-03 |
DE3509226C2 (en) | 1997-03-27 |
EP0215934B1 (en) | 1990-03-28 |
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Legal Events
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