GB2079923A - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
GB2079923A
GB2079923A GB8121209A GB8121209A GB2079923A GB 2079923 A GB2079923 A GB 2079923A GB 8121209 A GB8121209 A GB 8121209A GB 8121209 A GB8121209 A GB 8121209A GB 2079923 A GB2079923 A GB 2079923A
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GB
United Kingdom
Prior art keywords
straight
heat exchanger
portions
finned
bent
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
Application number
GB8121209A
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GB2079923B (en
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HEAT EXCHANGER
Original Assignee
HEAT EXCHANGER
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Filing date
Publication date
Application filed by HEAT EXCHANGER filed Critical HEAT EXCHANGER
Publication of GB2079923A publication Critical patent/GB2079923A/en
Application granted granted Critical
Publication of GB2079923B publication Critical patent/GB2079923B/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/005—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for only one medium being tubes having bent portions or being assembled from bent tubes or being tubes having a toroidal configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/20—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being attachable to the element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/014—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0309—Heat exchange with the fluid by heating using another fluid
    • F17C2227/0311—Air heating
    • F17C2227/0313—Air heating by forced circulation, e.g. using a fan
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0388—Localisation of heat exchange separate
    • F17C2227/0393—Localisation of heat exchange separate using a vaporiser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0397—Localisation of heat exchange characterised by fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
    • F28D2021/0064—Vaporizers, e.g. evaporators

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

A heat exchanger has a central carrier tube 1 which supports a partially-finned heat exchange tube by means of retaining devices 2 and 3. The heat exchange tube has a plurality of straight tubes 42 provided with axially-extending fins 6, the finned tubes being interconnected by tubular connectors 4. Each tubular connector 4 has a V-shaped portion which extends substantially at right-angles to straight portions 41 which are contiguous with the ends of the V- shaped portion. The straight portions 41 of a given tubular connector 4 are connected to the adjacent ends of a respective pair of finned tubes 42. The V-shaped portions of the tubular connectors are clamped to the retaining devices 2 and 3. The finned tubes 42 are symmetrically disposed about the central carrier tube 1, so that they form together with the tubular connectors 4 a self-supporting tubular cage. <IMAGE>

Description

SPECIFICATION Heat exchanger This invention relates to a heat exchanger, and in particular to a cryogenic evaporator.
A known type of cryogenic evaporator has heat exchange parts constituted by a plurality of straight finned tubes which are interconnected by unfinned tubular connectors. The fins of each finned tube are axially extending and are arranged in a star-shaped configuration. The fins provide support for the finned tubes, whereas the tubular connectors have no load-supporting function.
Because some of the fins have to be adapted to provide support, the free passage of air (or other heat exchange medium) flowing over the exterior of the finned tubes is prevented.
Heat exchangers having self-supporting finned tubes are also known. For example, a known type of heat exchanger has a plurality of finned tubes arranged between a pair of annular connector tubes.
The aim of the invention is to provide a heat exchanger which permits the free passage of air (or other heat exchange medium) over its finned heat exchange tubing, which can be transported in a dismantled space-saving manner, and which can be readily assembled on site.
The present invention provides a heat exchanger comprising an elongate carrier and a continuous, partially-finned heat exchange tube having an inlet and an outlet, the heat exchange tube having first and second sets of mounting sections, each mounting section having a bent portion and two straight portions extending from the ends of the bent portion substantially at rightangles thereto, the heat exchange tube being supported on the carrier by first and second spaced retaining devices, the bent portions of the mounting sections of the first set being clamped to the first retaining device with the straight portions thereof extending towards the second retaining device, and the bent portions of the mounting sections of the second set being clamped to the second retaining device with the straight portions thereof extending towards the first retaining device.
Advantageously, the heat exchange tube includes a plurality of straight, finned tubes.
Preferably, the straight, finned tubes are symmetrically disposed around, and spaced from, the carrier.
In a preferred embodiment, the two straight portions of each mounting section are connected to the adjacent ends of a respective pair of adjacent straight finned tubes. In this case, the fins of the straight finned tubes may be integrally formed therewith.
In another preferred embodiment, each of the mounting sections has one short straight portion and one long straight portion extending from the ends of its bent portion, the long straight portion of one of the mounting sections being connected to the inlet or the outlet, and the long straight portion of each of the other mounting sections being connected to the short straight section bf an adjacent mounting section, and wherein the long straight portions each constitute part of one of the straight finned tubes.Alternatively, each of the mounting sections of the first set has two short straight portions extending from the ends of its bent portion, and each of the mounting sections of the second set has two long straight portions extending from the ends of its bent portion, each of the long straight portions of each of the mounting sections of the second set being connected to a short straight portion of a respective mounting section of the first set, and wherein the long straight portions each constitute part of one of the straight finned tubes. In either of these cases, a respective finned tubular member may be clamped to each of said long straight portions whereby each long straight portion/finned tubular member constitues one of the straight finned tubes. Conveniently, each finned tubular member is constituted by two finned semi-tubular parts.
Preferably, the bent portions of the mounting sections are V-shaped.
Advantageously, each of the retaining devices is constituted by a pair of annular discs and means for clamping the discs together, each disc being formed with an outer peripheral raised edge portion, the raised edged portions being formed with recesses for receiving the bent portions of the mounting sections of the associated set.
Preferably, one of the retaining devices is rigidly fixed to the carrier, and the other retaining device is attached to, but longitudinally movable along the carrier.
Preferably, the carrier is a straight tube, the cylindrical wall of which is provided with a plurality of apertures through which a fluid stream can be directed onto the heat exchange tube. In this case, the heat exchanger may further comprise a blower mounted on the carrier and positioned to blow hot air into the interior of the carrier tube.
An evaporator constructed in accordance with the invention will now be described, by way of example, with reference to the accompanying drawings, in which: Fig. 1 is a perspective view of the upper part of the evaporator, with part of its upper retaining device removed; Fig. 2 is a part-sectional side elevation of the upper part of the evaporator; Fig. 3 is a side elevation, on a smaller scale, of the evaporator; Fig. 4 is a plan view of the evaporator; Figs. 5 to 7 are perspective views of parts of various forms of heat exchange tubing for use with the evaporator; Fig. 8 is a part-sectional side elevation of the lower retaining device and the central carrier of the evaporator; Fig. 9 is a plan view of the evaporator, showing a modified arrangement of the heat exchange tubing; and Fig. 10 is a diagrammatic illustration of the dismantled parts of the evaporator, suitably positioned for transportation.
Referring to the drawings, Figs. 1 to 3 show an evaporator having a central carrier 1, an upper retaining device 2, a lower retaining device 3, and heat exchange tubing. The central carrier 1 is tubular, and is supported at its base by a foot 11.
The retaining devices 2 and 3 are provided to retain the heat exchange tubing in position (as is described below). The retaining device 3 is axially displaceable relative to the central carrier.
The heat exchange tubing is constituted by ten straight lengths of tube 42 and nine tubular connectors 4. Five of the tubular connectors 4 are clamped in the upper retaining device 2, and the other four tubular connectors are clamped in the lower retaining device 3. Each of the tubular connectors 4 has a V-shaped portion and a pair of short, straight portions 41. The short, straight portions 41 of each tubular connector 4 extend substantially at right-angles to the V-shaped portion of that connector. The short, straight portions 41 of the five tubular connectors 4 associated with the upper retaining device 2 extend downwardiy, and the short, straight portions 41 of the four tubular connectors 4 associated with the lower retaining device 3 extend upwardly.Each short, straight portion 41 of each tubular connector 4 is welded, at 51 , to a respective end of one of the tubes 42, so that the tubes 42 and the connectors form a continuous length of heat exchange tubing having an inlet 82 and an outlet 83 positioned at the base of the evaporator. Each tube 42 is provided with radially extending heat-exchanging fins 6.
The upper retaining device 2 is constituted by two discs 21 and 22 (see Fig. 2). The facing surfaces of these discs 21 and 22 are each formed with an upstanding, annular, outer edge portion provided with ten radially-extending channels 23.
The channels 23 are milled into the upstanding edge portions of the discs 21 and 22. Each of the channels is of semi-circular cross-section, having a diameter corresponding to that of the tubular connectors 4. The lower disc 22 is welded, at 24, to the central carrier 1, and the upper disc 21 is held against the lower disc by means of a disc 12 and a support ring 14. The disc 1 2 closes the upper end of the central carrier 1, and the support ring 14 is screwed into the disc 12 to press the two discs 21 and 22 together; a cup-shaped member 1 3 transmitting the force applied by the support ring to the upper disc 21. Thus, the screwing in of the support disc 14 holds the Vshaped portions of the five upper connectors 4 in the required positions within the retaining device 2 (see Fig. 2).
The lower retaining device 3 (see Fig. 8) is of similar construction to the upper retaining device 2. Thus, the lower retaining device 3 has a pair of discs which are similar to the discs 21 and 22.
These discs are held together by means of bolts 31, whose axes lie parallel to the axis of the central carrier 1. As the lower retaining device 3 is associated with four connectors 4, each of its discs is provided with only eight milled, radiallyextending channels (not shown - but similar to the channels 23) for receiving the V-shaped portions of these connectors. As shown in Fig. 8, the lower retaining device 3 is not fixed to the central carrier 1, so that it can be displaced axially relative thereto.
Figs. 3 and 4 show the complete evaporator.
This evaporator has a hot-air blower 7 attached to the foot 11, and the ten longitudinally-finned tubes 6 are positioned symmetrically about the axis of the central carrier 1. This evaporator may be used, for example, to vaporise liquid nitrogen or-- liquid oxygen. The hot-air blower 7 is used to blow pre-heated air up into the interior of the tubular central carrier 1. As shown in Fig. 1, the central carrier 1 is formed with a plurality of apertures 1 5, through which the hot air can escape so as to pass over the heat-exchanging fins 6. The apertures 1 5 are distributed over the entire length of the central carrier 1.
The fins 6, which form star-shaped configurations, may be integrally formed with the tubes 42. Alternatively, they may be separate elements which can be fitted onto previously assembled lengths of tube. In this case, it is possible to reduce the number of welds 51 required to form the complete length of heat exchange tubing. Figs. 5 and 6 show two ways of doing this. Thus, the heat exchange tubing of Fig. 5 has five upper tubular connectors 4 having short, straight portions 41, and four lower tubular connectors 4 having long straight portions 41'. An additional straight finned tube (not shown - but similar to the finned tubes 42) leads from the free portions 41 of respective upper connectors 4 to the inlet 81 and the outlet 82.Alternatively, as shown in Fig. 6, each connector 4 may have one short, straight portion 41 and one long, straight portion 41". Here again, the free portion 41 of one of the connectors 4 is connected to the inlet 81 or to the outlet 82 by an additional straight finned tube.
As an alternative to having star-shaped fins 6, the tubes 42 may each be provided with fins 61 (see Fig. 7), which are rigidly attached thereto, and which extend at right-angles to the longitudinal axis of that tube. Obviously, in this case, the tubular connectors 4 must all be of the type having two short, straight portions 41.
The entire length of heat exchange tubing (that is to say the tubular connectors 4 and the straight tubes such as the tubes 42) are made of stainless steel, copper or aluminium. Where the fins 6 are not integrally formed with the tubes 42, they are formed on semi-tubular members and are preferably made of aluminium. A pair of these semi-tubular members are clamped onto each of the previously assembled tubes. If means that can be screwed very tightly together are used for connecting the tubes and the connectors, the entire evaporator can be assembled without welding.
Fig. 9 shows a modified form of evaporator.
This evaporator is similar to that shown in Figs. 3 and 4, except that the retaining devices (only one of which - the upper retaining device 2' - is shown) is of square configuration.
Fig. 10 is a diagrammatic view of the components required to construct the evaporator shown in Figs. 3 and 4. These components are relatively small and are shown in a ready-todespatch form for ease of transportation. The consignment comprises:- 1 central carrier 1 10 tube portions (as shown in Fig. 5) 20 finned half-tubes 6 2 complete retaining devices 2, 3 1 foot 11 1 blower 7

Claims (14)

1. A heat exchanger comprising an elongate carrier and a continuous, partially-finned heat exchange tube having an inlet and an outlet, the heat exchange tube having first and second sets of mounting sections, each mounting section having a bent portion and two straight portions extending from the ends of the bent portion substantially at right-angles thereto, the heat exchange tube being supported on the carrier by first and second spaced retaining devices, the bent portions of the mounting sections of the first set being clamped to the first retaining device with the straight portions thereof extending towards the second retaining device, and the bent portions of the mounting sections of the second set being clamped to the second retaining device with the straight portions thereof extending towards the first retaining device.
2. A heat exchanger as claimed in claim 1, wherein the heat exchange tube includes a plurality of straight, finned tubes.
3. A heat exchanger as claimed in claim 2, wherein the straight, finned tubes are symmetrically disposed around, and spaced from, the carrier.
4. A heat exchanger as claimed in claim 2 or claim 3, wherein the two straight portions of each mounting section are connected to the adjacent ends of a respective pair of adjacent straight finned tubes.
5. A heat exchanger as claimed in claim 2 or claim 3, wherein each of the mounting sections has one short straight portion and one long straight portion extending from the ends of its bent portion, the long straight portion of one of the mounting sections being connected to the inlet or the outlet, and the long straight portion of each of the other mounting sections being connected to the short straight section of an adjacent mounting section, and wherein the long straight portions each constitute part of one of the straight finned tubes.
6. A heat exchanger as claimed in claim 2 or claim 3, wherein each of the mounting sections of the first set has two short straight portions extending from the ends of its bent portion, and each of the mounting sections of the second set has two long straight portions extending from the ends of its bent portion, each of the long straight portions of each of the mounting sections of the second set being connected to a short straight portion of a respective mounting section of the first set, and wherein the long straight portions each constitute part of one of the straight finned tubes.
7. A heat exchanger as claimed in claim 5 or claim 6, wherein a respective finned tubular member is clamped to each of said long straight portions whereby each long straight portion/finned tubular member constitutes one of the straight finned tubes.
8. A heat exchanger as claimed in claim 7, wherein each finned tubular member is constituted by two finned semi-tubular parts.
9. A heat exchanger as claimed in any one of claims 1 to 8, wherein the bent portions of the mounting sections are V-shaped.
10. A heat exchanger as claimed in claim 4, wherein the fins of the straight finned tubes are integrally formed therewith.
11. A heat exchanger as claimed in any one of claims 1 to 10, wherein each of the retaining devices is constituted by a pair of annular discs and means for clamping the discs together, each disc being formed with an outer peripheral raised edge portion, the raised edge portions being formed with recesses for receiving the bent portions of the mounting sections of the associated set.
12. A heat exchanger as claimed in any one of claims 1 to 11, wherein one of the retaining devices is rigidly fixed to the carrier, and the other retaining device is attached to, but longitudinally movable along, the carrier.
13. A heat exchanger as claimed in any one of claims 1 to 12, wherein the carrier is a straight tube, the cylindrical wall of which is provided with a plurality of apertures through which a fluid stream can be directed onto the heat exchange tube.
14. A heat exchanger as claimed in claim 13, further comprising a blower mounted on the carrier and positioned to blow hot air into the interior of the carrier tube.
1 5. An evaporator substantially as hereinbefore described with reference to, and as illustrated by, the accompanying drawings.
1 6. An evaporator or heat exchanger having heat exchange parts constituted by straight finned tubes which are disposed in a uniform geometric arrangement about a central carrier and are connected to each other by means of unfinned tubular connectors, wherein each tubular connector comprises a tube portion which is bent to a U-shape or a V-shape and the ends of which are bent over perpendicular to the plane in which the U-shaped or V-shaped bend is disposed, and wherein the parts of the tubular connectors that are bent to a U-shape or V-shape are clamped in retaining devices provided on the central carrier, the perpendicularly bent-over ends of the tubular connectors that are clamped in the upper retaining device being downwardly directed, and the perpendicularly bent-over ends of the tubular connectors that are clamped in the lower retaining device being upwardly directed and offset to the extent of the spacing of the tubes, so that they interconnect in series the finned tubes from the inlet to the outlet and form a self-supporting tube cage.
GB8121209A 1980-07-10 1981-07-09 Heat exchanger Expired GB2079923B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH5294/80A CH648401A5 (en) 1980-07-10 1980-07-10 HEAT EXCHANGER.

Publications (2)

Publication Number Publication Date
GB2079923A true GB2079923A (en) 1982-01-27
GB2079923B GB2079923B (en) 1983-10-05

Family

ID=4291179

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8121209A Expired GB2079923B (en) 1980-07-10 1981-07-09 Heat exchanger

Country Status (6)

Country Link
CH (1) CH648401A5 (en)
DE (1) DE3040802C2 (en)
FR (1) FR2493497A1 (en)
GB (1) GB2079923B (en)
IT (1) IT1142689B (en)
SE (1) SE450600B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487256A (en) * 1980-07-10 1984-12-11 Cryomec, Inc. Cryogenic heat exchanger
US5251452A (en) * 1992-03-16 1993-10-12 Cryoquip, Inc. Ambient air vaporizer and heater for cryogenic fluids
FR2851327A1 (en) * 2003-01-30 2004-08-20 Baelz Gmbh Helmut HEAT EXCHANGER FOR PRODUCING HOT WATER
WO2009000669A1 (en) * 2007-06-25 2008-12-31 BSH Bosch und Siemens Hausgeräte GmbH Refrigeration device
CN108507393A (en) * 2018-05-31 2018-09-07 国电龙源节能技术有限公司 The solid-liquid phase change heat storage thermal of three-dimensional rib plate structure
CN111120859A (en) * 2019-12-17 2020-05-08 西安交通大学 Air-temperature gasifier for strengthening solar radiation heat exchange and inhibiting frosting

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19717832C2 (en) * 1997-04-26 1999-11-11 Robionek Hans Joachim Heat exchanger arrangement
US20060075762A1 (en) * 2004-09-16 2006-04-13 Wijngaarden Wim V LNG regas

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2640686A (en) * 1949-08-30 1953-06-02 Brown Fintube Co Heat exchange type of tank heater
US2751199A (en) * 1951-04-18 1956-06-19 Taco Heaters Inc Heat exchanger
GB772395A (en) * 1954-08-19 1957-04-10 Brown Fintube Co Heat exchangers
GB968598A (en) * 1961-03-10 1964-09-02 Parsons C A & Co Ltd Improvements in and relating to feed heaters for steam turbine plant
FR1479739A (en) * 1965-05-13 1967-05-05 Gen Dynamics Corp Cryogenic vaporizer
US3672446A (en) * 1969-01-21 1972-06-27 Airco Inc Ambient air vaporizer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487256A (en) * 1980-07-10 1984-12-11 Cryomec, Inc. Cryogenic heat exchanger
US5251452A (en) * 1992-03-16 1993-10-12 Cryoquip, Inc. Ambient air vaporizer and heater for cryogenic fluids
FR2851327A1 (en) * 2003-01-30 2004-08-20 Baelz Gmbh Helmut HEAT EXCHANGER FOR PRODUCING HOT WATER
WO2009000669A1 (en) * 2007-06-25 2008-12-31 BSH Bosch und Siemens Hausgeräte GmbH Refrigeration device
CN108507393A (en) * 2018-05-31 2018-09-07 国电龙源节能技术有限公司 The solid-liquid phase change heat storage thermal of three-dimensional rib plate structure
CN108507393B (en) * 2018-05-31 2024-03-15 国能龙源蓝天节能技术有限公司 Solid-liquid phase change heat storage and heat extraction device with three-dimensional fin structure
CN111120859A (en) * 2019-12-17 2020-05-08 西安交通大学 Air-temperature gasifier for strengthening solar radiation heat exchange and inhibiting frosting

Also Published As

Publication number Publication date
SE450600B (en) 1987-07-06
DE3040802C2 (en) 1984-07-26
IT1142689B (en) 1986-10-15
CH648401A5 (en) 1985-03-15
FR2493497A1 (en) 1982-05-07
IT8148868A0 (en) 1981-07-09
SE8104276L (en) 1982-01-11
GB2079923B (en) 1983-10-05
FR2493497B1 (en) 1984-11-23
DE3040802A1 (en) 1982-02-11

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