CA2352192A1 - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- CA2352192A1 CA2352192A1 CA002352192A CA2352192A CA2352192A1 CA 2352192 A1 CA2352192 A1 CA 2352192A1 CA 002352192 A CA002352192 A CA 002352192A CA 2352192 A CA2352192 A CA 2352192A CA 2352192 A1 CA2352192 A1 CA 2352192A1
- Authority
- CA
- Canada
- Prior art keywords
- heat exchanger
- interconnected
- tube
- product
- tube 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.)
- Abandoned
Links
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 239000000047 product Substances 0.000 description 31
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
-
- 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
- F28D7/10—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 being arranged one within the other, e.g. concentrically
- F28D7/106—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 being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
-
- 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
- F28D2021/0042—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for foodstuffs
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
The invention relates to a heat exchanger which includes a plurality of heat exchanger elements (1) which are interconnected to form a flow system, partly for the product and partly for a heat transfer medium. The heat exchanger elements (1) are supported on a frame. Each heat exchanger element (1) consists of one or more heat transfer tubes (3) interconnected in each end with tube plates (4) to a product flow insert (5). The heat transfer tubes (3) are surrounded by a casing tube (2). Two adjacent product flow inserts (5) are interconnected by means of a product pipe bend (6) and two adjacent casing tubes are in turn interconnected by means of a connection member (10). The tube plates (4) constitute a part of the frame of the heat exchanger, flexibly interconnected with adjacent tube plates (4).
Description
HEAT EXCHAN G ER
TECHNICAL FIELD
The present invention relates to a heat exchanger of the type which includes a plurality of heat exchanger elements carried by a frame and interconnected to one another in a flow system with a product flow and flow for a heat transfer medium, each heat exchanger element displaying, on the one hand, one or more heat transfer tubes interconnected by means of tube plates to form product flow inserts, and, on the other hand, a casing tube surrounding the heat transfer tubes, two adjacent product flow inserts being interconnected with one another by means of product pipe bends.
BACKGROUND ART
Heat exchangers, which exist in a multiplicity of types, are employed when the intention is to heat or cool a liquid product, for example with the aid of steam, water or other liquid at different temperatures. Heat exchangers come into use within various process industries and are also common occurrences in the food industries, such as dairies.
A well-known type of heat exchanger is the so-called tube heat exchanger which consists of one or more heat exchanger elements which are interconnected with one another in a flow system, with a product flow and a flow for a heat transfer medium. A heat exchanger element substantially consists of one or more heat transfer tubes surrounded by an outer casing tube. The heat transfer tubes are interconnected by means of a tube plate to form a unit, a product flow insert. Two adjacent product flow inserts are in turn interconnected by means of product pipe bends to form a product flow in order to be able to circulate the product which is to be heated or cooled in the process. The outer casing tubes are also interconnected in order to be able to circulate a heat transfer medium, such as water or other liquid, or steam or alternatively other gases.
In recent times, attempts have been made to modularise tube heat exchangers of the above-outlined type in order to realise a simpler assembly and to avoid each tube heat exchanger becoming "customised". Such a tube heat exchanger is described in Swedish Patent Specification SE 501 908.
TECHNICAL FIELD
The present invention relates to a heat exchanger of the type which includes a plurality of heat exchanger elements carried by a frame and interconnected to one another in a flow system with a product flow and flow for a heat transfer medium, each heat exchanger element displaying, on the one hand, one or more heat transfer tubes interconnected by means of tube plates to form product flow inserts, and, on the other hand, a casing tube surrounding the heat transfer tubes, two adjacent product flow inserts being interconnected with one another by means of product pipe bends.
BACKGROUND ART
Heat exchangers, which exist in a multiplicity of types, are employed when the intention is to heat or cool a liquid product, for example with the aid of steam, water or other liquid at different temperatures. Heat exchangers come into use within various process industries and are also common occurrences in the food industries, such as dairies.
A well-known type of heat exchanger is the so-called tube heat exchanger which consists of one or more heat exchanger elements which are interconnected with one another in a flow system, with a product flow and a flow for a heat transfer medium. A heat exchanger element substantially consists of one or more heat transfer tubes surrounded by an outer casing tube. The heat transfer tubes are interconnected by means of a tube plate to form a unit, a product flow insert. Two adjacent product flow inserts are in turn interconnected by means of product pipe bends to form a product flow in order to be able to circulate the product which is to be heated or cooled in the process. The outer casing tubes are also interconnected in order to be able to circulate a heat transfer medium, such as water or other liquid, or steam or alternatively other gases.
In recent times, attempts have been made to modularise tube heat exchangers of the above-outlined type in order to realise a simpler assembly and to avoid each tube heat exchanger becoming "customised". Such a tube heat exchanger is described in Swedish Patent Specification SE 501 908.
OBJECTS OF THE INVENTION
One object of the present invention is to further simplify the modularised tube heat exchanger in order to create the possibility of competing with the plate heat exchanger which are common on the market and are considerably cheaper.
A further object of the present invention is to realise a tube heat exchanger which, despite its compact construction, is capable of taking up the thermal expansions which always occur in heat exchangers.
Yet a further object of the present invention is to realise a tube heat exchanger which is economical to manufacture and which is simple to install and maintain.
SOLUTION
These and other objects have been attained according to the present 1 S invention in that the heat exchanger of the type described by way of introduction has been given the characterizing feature that two adjacent casing tubes are interconnected by means of a connection member and that the tube plates constitute a part of the frame, flexibly interconnected with adjacent tube plates.
Preferred embodiments of the heat exchanger according to the present invention have further been given the characterizing features as set forth in the appended subclaims.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
One preferred embodiment of the heat exchanger according to the present invention will now be described in greater detail hereinbelow, with particular reference to the accompanying Drawings. In the accompanying Drawings:
Fig. 1 is a side elevation of a heat exchanger according to the present invention;
Fig. 2 is a side elevation of a part of a heat exchanger;
Fig. 3 is a side elevation, partly in section, of a product pipe bend;
Fig. 4 is a side elevation, partly in section, of a part of a heat exchanger element;
Fig. 5 is a plan view of a tube plate;
Fig. 6 is a plan view of a connection profile; and _ w0 00/31489 PCT/SE99/02175 Figs. 7-9 show different end elevations of heat exchangers.
The accompanying Drawings show only those parts and details essential to an understanding of the present invention.
S DESCRIPTION OF PREFERRED EMBODIMENT
Figs. 2 and 3 show the construction of the heat exchanger. A tube heat exchanger according to the present invention consists substantially of one or more heat exchanger elements 1. The heat exchanger normally consists of a number of these heat exchanger elements 1, interconnected with one another in a flow system. A heat exchanger element 1 consists of an outer casing tube 2 which surrounds one or more heat transfer tubes 3. The heat transfer tubes 3 are interconnected to one another at each end of the tubes 3 by means of a tube plate 4. A number of heat transfer tubes 3 with a tube plate 4 at each end constitutes a product flow insert 5. The casing tube 2 is, in both ends, welded to each respective tube plate 4.
Fig. 1 shows a number of heat exchanger elements 1 interconnected to form a heat exchanger. The heat exchanger has a flow for product, which is shown by means of white arrows, and a flow for a heat transfer medium, which is shown by black arrows. The heat transfer medium is to heat or cool the product, depending upon the process which is desired. The heat transfer medium may consist of water or other liquid of different temperature, or alternatively of steam or other gas. A heat exchanger according to the present invention may also be employed regeneratively, i.e. product is employed in both of the flows so that an already heated product heats the incoming cold product, and vice versa.
The product flow is circulated in the heat transfer tubes 3 which constitute the major part of the product flow inserts 5. Two adjacent product flow inserts 5 are interconnected by means of a product pipe bend 6, in that the product pipe bend is secured with a flange union in two adjacent tube plates 4. The product pipe bend 6 is preferably of elliptical cross section centrally between two product flow inserts 5, in point 7, and of circular cross section in both its ends. Alternatively, the product pipe bend 6 may be of circular cross section throughout its entire length. An elliptical product pipe bend 6 in accordance with the foregoing is described in detail in Swedish Patent Application SE 9703865-7.
WO 00/31489 PCTlSE99/02175 The flow for the heat transfer medium is circulated through the casing tubes 2. In the proximity of both of their ends, the casing tubes 2 have a circular aperture 8 in the casing surface with a collar 9. The collar 9 corresponds with a connection member 10. The connection member 10 which substantially consists of a straight tube length, is bevelled in both its ends and provided with a gasket or O-ring 11. The collars 9 abut against the O-rings 11 in both ends of the connection member 10 and constitute a tight and, to some degree, a flexible union.
A tube plate 4 which constitutes a part of a product flow insert 5, is shown in Fig. 5. The plate 4 has modular adapted outer dimensions and, in its four corners, is provided with grooves 12. The grooves 12 correspond with a coupling profile 13 which is shown in Fig. 6. The coupling profile 13 is substantially cruciform. A coupling profile 13 may unite two, three or four tube plates 4.
In that the tube plates 4 in a heat exchanger are placed closely adjacent one another united by coupling profiles 13, there will be obtained a stable unit which constitutes a part of the frame of the heat exchanger.
Various ways of placing four heat exchanger elements 1 are shown in Figs. 7-9. The heat exchanger elements 1 are placed on a Iower frame section 14 with adjustable feet 15. The lower frame section 14 has grooves 16 corresponding to the grooves 12 in the tube plates 4. The tube plates 4 are locked against the lower frame section 14 by means of coupling profiles 13.
As a result of the design and thickness of the coupling profiles 13, each individual heat exchanger element 1 may move in its longitudinal direction. This is a necessity, since the heat exchanger elements are subjected to powerful thermal expansion. The connection members 10 may also move laterally to some degree and trials have shown that a tight union will be obtained despite oblique inclination against the O-rings 11. The corresponding oblique inclination would not be possible in, for example, a flange union.
As a result of the form of the product pipe bend 5 with an elliptical cross section centrally in the pipe bend 6, a further portion of the heat exchanger will be obtained which is capable of absorbing the thermal stresses in that the product pipe bend 6 is somewhat flexible in its form. A
corresponding pipe bend of circular cross section throughout its entire length is not flexible at all. -~'VO 00131489 PCT/SE99102175 By employing modular adapted tube plates 4 to which different casing tubes 2 may be connected, and by employing connection members 10 of different heights, there will be obtained a series of tube heat exchangers with different capacities which may be manufactured with a few simple S parts. The heat exchanger will be simple to assemble, and service is simplified since it is not necessary to dismantle more than that heat exchanger element 1 which needs to be replaced.
The connection member 10 may be readily dismantled anywhere whatever in a complete heat exchanger, which affords a certain possibility for inspection. This is particularly important when the heat exchanger is employed regeneratively, i.e. when product is run against product. The connection member 10 is easy to maintain since it normally entails that only the O-rings 11 must be replaced. The connection member 10 is also relatively simple to manufacture given that the flexibility in the member 10 gives room for greater tolerances.
In the event of possible crack formation, because of stress corrosion which is a common occurrence in tube heat exchangers with fixed connections between the casing tubes 2; two casing tubes 2 must be replaced.
The risk of crack formation in a heat exchanger according to the present invention is reduced in that the connection member 10 may take up a part of the thermal expansion. If crack formation were nevertheless to occur, only one casing tube 2 need be replaced.
As will be have been apparent from the foregoing description, the present invention realises a heat exchanger which is simple and economical to manufacture and which has great possibilities for taking up the thermal expansion which occurs in a heat exchanger.
One object of the present invention is to further simplify the modularised tube heat exchanger in order to create the possibility of competing with the plate heat exchanger which are common on the market and are considerably cheaper.
A further object of the present invention is to realise a tube heat exchanger which, despite its compact construction, is capable of taking up the thermal expansions which always occur in heat exchangers.
Yet a further object of the present invention is to realise a tube heat exchanger which is economical to manufacture and which is simple to install and maintain.
SOLUTION
These and other objects have been attained according to the present 1 S invention in that the heat exchanger of the type described by way of introduction has been given the characterizing feature that two adjacent casing tubes are interconnected by means of a connection member and that the tube plates constitute a part of the frame, flexibly interconnected with adjacent tube plates.
Preferred embodiments of the heat exchanger according to the present invention have further been given the characterizing features as set forth in the appended subclaims.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
One preferred embodiment of the heat exchanger according to the present invention will now be described in greater detail hereinbelow, with particular reference to the accompanying Drawings. In the accompanying Drawings:
Fig. 1 is a side elevation of a heat exchanger according to the present invention;
Fig. 2 is a side elevation of a part of a heat exchanger;
Fig. 3 is a side elevation, partly in section, of a product pipe bend;
Fig. 4 is a side elevation, partly in section, of a part of a heat exchanger element;
Fig. 5 is a plan view of a tube plate;
Fig. 6 is a plan view of a connection profile; and _ w0 00/31489 PCT/SE99/02175 Figs. 7-9 show different end elevations of heat exchangers.
The accompanying Drawings show only those parts and details essential to an understanding of the present invention.
S DESCRIPTION OF PREFERRED EMBODIMENT
Figs. 2 and 3 show the construction of the heat exchanger. A tube heat exchanger according to the present invention consists substantially of one or more heat exchanger elements 1. The heat exchanger normally consists of a number of these heat exchanger elements 1, interconnected with one another in a flow system. A heat exchanger element 1 consists of an outer casing tube 2 which surrounds one or more heat transfer tubes 3. The heat transfer tubes 3 are interconnected to one another at each end of the tubes 3 by means of a tube plate 4. A number of heat transfer tubes 3 with a tube plate 4 at each end constitutes a product flow insert 5. The casing tube 2 is, in both ends, welded to each respective tube plate 4.
Fig. 1 shows a number of heat exchanger elements 1 interconnected to form a heat exchanger. The heat exchanger has a flow for product, which is shown by means of white arrows, and a flow for a heat transfer medium, which is shown by black arrows. The heat transfer medium is to heat or cool the product, depending upon the process which is desired. The heat transfer medium may consist of water or other liquid of different temperature, or alternatively of steam or other gas. A heat exchanger according to the present invention may also be employed regeneratively, i.e. product is employed in both of the flows so that an already heated product heats the incoming cold product, and vice versa.
The product flow is circulated in the heat transfer tubes 3 which constitute the major part of the product flow inserts 5. Two adjacent product flow inserts 5 are interconnected by means of a product pipe bend 6, in that the product pipe bend is secured with a flange union in two adjacent tube plates 4. The product pipe bend 6 is preferably of elliptical cross section centrally between two product flow inserts 5, in point 7, and of circular cross section in both its ends. Alternatively, the product pipe bend 6 may be of circular cross section throughout its entire length. An elliptical product pipe bend 6 in accordance with the foregoing is described in detail in Swedish Patent Application SE 9703865-7.
WO 00/31489 PCTlSE99/02175 The flow for the heat transfer medium is circulated through the casing tubes 2. In the proximity of both of their ends, the casing tubes 2 have a circular aperture 8 in the casing surface with a collar 9. The collar 9 corresponds with a connection member 10. The connection member 10 which substantially consists of a straight tube length, is bevelled in both its ends and provided with a gasket or O-ring 11. The collars 9 abut against the O-rings 11 in both ends of the connection member 10 and constitute a tight and, to some degree, a flexible union.
A tube plate 4 which constitutes a part of a product flow insert 5, is shown in Fig. 5. The plate 4 has modular adapted outer dimensions and, in its four corners, is provided with grooves 12. The grooves 12 correspond with a coupling profile 13 which is shown in Fig. 6. The coupling profile 13 is substantially cruciform. A coupling profile 13 may unite two, three or four tube plates 4.
In that the tube plates 4 in a heat exchanger are placed closely adjacent one another united by coupling profiles 13, there will be obtained a stable unit which constitutes a part of the frame of the heat exchanger.
Various ways of placing four heat exchanger elements 1 are shown in Figs. 7-9. The heat exchanger elements 1 are placed on a Iower frame section 14 with adjustable feet 15. The lower frame section 14 has grooves 16 corresponding to the grooves 12 in the tube plates 4. The tube plates 4 are locked against the lower frame section 14 by means of coupling profiles 13.
As a result of the design and thickness of the coupling profiles 13, each individual heat exchanger element 1 may move in its longitudinal direction. This is a necessity, since the heat exchanger elements are subjected to powerful thermal expansion. The connection members 10 may also move laterally to some degree and trials have shown that a tight union will be obtained despite oblique inclination against the O-rings 11. The corresponding oblique inclination would not be possible in, for example, a flange union.
As a result of the form of the product pipe bend 5 with an elliptical cross section centrally in the pipe bend 6, a further portion of the heat exchanger will be obtained which is capable of absorbing the thermal stresses in that the product pipe bend 6 is somewhat flexible in its form. A
corresponding pipe bend of circular cross section throughout its entire length is not flexible at all. -~'VO 00131489 PCT/SE99102175 By employing modular adapted tube plates 4 to which different casing tubes 2 may be connected, and by employing connection members 10 of different heights, there will be obtained a series of tube heat exchangers with different capacities which may be manufactured with a few simple S parts. The heat exchanger will be simple to assemble, and service is simplified since it is not necessary to dismantle more than that heat exchanger element 1 which needs to be replaced.
The connection member 10 may be readily dismantled anywhere whatever in a complete heat exchanger, which affords a certain possibility for inspection. This is particularly important when the heat exchanger is employed regeneratively, i.e. when product is run against product. The connection member 10 is easy to maintain since it normally entails that only the O-rings 11 must be replaced. The connection member 10 is also relatively simple to manufacture given that the flexibility in the member 10 gives room for greater tolerances.
In the event of possible crack formation, because of stress corrosion which is a common occurrence in tube heat exchangers with fixed connections between the casing tubes 2; two casing tubes 2 must be replaced.
The risk of crack formation in a heat exchanger according to the present invention is reduced in that the connection member 10 may take up a part of the thermal expansion. If crack formation were nevertheless to occur, only one casing tube 2 need be replaced.
As will be have been apparent from the foregoing description, the present invention realises a heat exchanger which is simple and economical to manufacture and which has great possibilities for taking up the thermal expansion which occurs in a heat exchanger.
Claims (6)
1. A heat exchanger of the type which includes a plurality of heat exchanger elements (1) carried by a frame and interconnected to one another in a flow system with a product flow and flow for a heat transfer medium, each heat exchanger element (1) displaying, on the one hand, one or more heat transfer tubes (3) interconnected by means of tube plates (4) to form product flow inserts (5), and, on the other hand, a casing tube (2) surrounding the heat transfer tubes (3), two adjacent product flow inserts (5) being interconnected with one another by means of product pipe bends, characterized in that two adjacent casing tubes (2) are interconnected by means of a connection member (10); and that the tube plates (4) constitute a part of the frame, flexibly interconnected with adjacent tube plates (4).
2. The heat exchanger as claimed in Claim 1, characterized in that the product pipe bend (6) is of elliptical cross section at the centre of the bend (6).
3. The heat exchanger as claimed in Claim 1, characterized in that the tube plates (4) have grooves (12) in their four corners, said grooves (12) corresponding with substantially cruciform coupling profiles (13).
4. The heat exchanger as claimed in Claim 3, characterized in that the coupling profiles (13) are of a thickness which gives the heat exchanger elements (1) the possibility of moving in their longitudinal direction.
5. The heat exchanger as claimed in Claim 1, characterized in that the connection member (10) consists of a straight tube section with an O-ring (11) in each end.
6. The heat exchanger as claimed in Claim 1, characterized in that the tube plates (4), together with a lower frame section (14), constitute the frame of the heat exchanger.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9804037-1 | 1998-11-25 | ||
| SE9804037A SE9804037L (en) | 1998-11-25 | 1998-11-25 | Heat |
| PCT/SE1999/002175 WO2000031489A1 (en) | 1998-11-25 | 1999-11-24 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2352192A1 true CA2352192A1 (en) | 2000-06-02 |
Family
ID=20413407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002352192A Abandoned CA2352192A1 (en) | 1998-11-25 | 1999-11-24 | Heat exchanger |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1153257A1 (en) |
| CN (1) | CN1333868A (en) |
| AU (1) | AU1903600A (en) |
| BR (1) | BR9915657A (en) |
| CA (1) | CA2352192A1 (en) |
| EA (1) | EA002536B1 (en) |
| SE (1) | SE9804037L (en) |
| WO (1) | WO2000031489A1 (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1549898A1 (en) * | 2002-05-29 | 2005-07-06 | Lg Electronics Inc. | Heat exchanger for refrigerator and method for anufacturing refrigerant tube of the same |
| CN100362305C (en) * | 2005-07-01 | 2008-01-16 | 彭建华 | Return pipe heat exchanger |
| KR101744065B1 (en) | 2009-07-16 | 2017-06-07 | 록히드 마틴 코포레이션 | Helical tube bundle arrangements for heat exchangers |
| CN102812320B (en) | 2009-07-17 | 2016-09-07 | 洛克希德马丁公司 | Heat exchanger and preparation method thereof |
| US9777971B2 (en) * | 2009-10-06 | 2017-10-03 | Lockheed Martin Corporation | Modular heat exchanger |
| DE102010028117A1 (en) * | 2010-04-22 | 2011-10-27 | Krones Ag | Connecting element for tubular heat exchanger |
| CN101852570B (en) * | 2010-05-21 | 2012-06-20 | 谭仲禧 | Pipeline connection structure of heat exchanger |
| US9388798B2 (en) | 2010-10-01 | 2016-07-12 | Lockheed Martin Corporation | Modular heat-exchange apparatus |
| US9670911B2 (en) | 2010-10-01 | 2017-06-06 | Lockheed Martin Corporation | Manifolding arrangement for a modular heat-exchange apparatus |
| CN102853709A (en) * | 2011-06-28 | 2013-01-02 | 沈阳铝镁设计研究院有限公司 | Multi-double-pipe connecting structure for heat exchangers |
| CN104428620A (en) * | 2012-07-05 | 2015-03-18 | 利乐拉瓦尔集团及财务有限公司 | Improved tubular heat exchanger |
| WO2015074709A1 (en) | 2013-11-22 | 2015-05-28 | Tetra Laval Holdings & Finance S.A. | A method and a device for heat treatment of a liquid food product |
| WO2015074714A1 (en) | 2013-11-22 | 2015-05-28 | Tetra Laval Holdings & Finance S.A. | A method and system for low temperature pasteurization of a liquid food product |
| DE102014012279B3 (en) * | 2014-08-22 | 2015-08-20 | Gea Tds Gmbh | Manifold for a shell-and-tube heat exchanger for large product pressures, fabrication methods for a shell and tube heat exchanger having such a manifold, and use of a shell-and-tube heat exchanger for high product pressures with such a manifold in an atomization dryer |
| CN104613580A (en) * | 2015-01-30 | 2015-05-13 | 郑州轻工业学院 | Air-conditioning unit used for machine room refrigeration |
| CN105890406B (en) * | 2016-05-19 | 2017-12-15 | 陈维汉 | A kind of high temperature ceramic heat-exchanger of resistance to pressure difference |
| CN107514923A (en) * | 2017-07-20 | 2017-12-26 | 南京航空航天大学 | Evaporator and method of work using used heat solution as thermal source |
| CN109269338B (en) * | 2018-09-25 | 2020-04-24 | 无锡科伦达化工热力装备有限公司 | High-pressure circulating gas cooler |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US710810A (en) * | 1902-10-07 | Joseph Schneible | Cooler or condenser. | |
| US663602A (en) * | 1899-05-05 | 1900-12-11 | Eugene Watson Deming | Heat-absorber for defecating apparatus. |
| US1790151A (en) * | 1928-02-29 | 1931-01-27 | Struthers Wells Company | Heat exchanger |
| US2099493A (en) * | 1936-06-16 | 1937-11-16 | Vogt & Co Inc Henry | Double pipe heat exchanger |
| GB713718A (en) * | 1951-08-20 | 1954-08-18 | Junkers & Co | Improvements in pipe bends or elbows |
| GB905076A (en) * | 1958-07-07 | 1962-09-05 | Babcock & Wilcox Ltd | Improvements in or relating to tubulous heat exchangers |
| AT365774B (en) * | 1980-08-27 | 1982-02-10 | Vmw Ranshofen Berndorf Ag | BOW PIECE FOR HEAT EXCHANGER SNAKE OR REGISTER |
| US5121791A (en) * | 1989-10-16 | 1992-06-16 | Richard Casterline | Barrel type fluid heat exchanger and means and technique for making the same |
| SE501908C2 (en) * | 1993-10-21 | 1995-06-19 | Tetra Laval Holdings & Finance | Heat exchanger with interconnected modules |
| WO1998016791A1 (en) * | 1996-10-11 | 1998-04-23 | Aalborg Industries A/S | A tube sheet segment, a heat exchanger, and a method of manufacturing a tube bundle for a heat exchanger |
-
1998
- 1998-11-25 SE SE9804037A patent/SE9804037L/en not_active Application Discontinuation
-
1999
- 1999-11-24 EP EP99962631A patent/EP1153257A1/en not_active Withdrawn
- 1999-11-24 CN CN 99815811 patent/CN1333868A/en active Pending
- 1999-11-24 CA CA002352192A patent/CA2352192A1/en not_active Abandoned
- 1999-11-24 WO PCT/SE1999/002175 patent/WO2000031489A1/en not_active Ceased
- 1999-11-24 AU AU19036/00A patent/AU1903600A/en not_active Abandoned
- 1999-11-24 BR BR9915657-1A patent/BR9915657A/en not_active Application Discontinuation
- 1999-11-24 EA EA200100580A patent/EA002536B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| BR9915657A (en) | 2001-10-16 |
| SE9804037D0 (en) | 1998-11-25 |
| AU1903600A (en) | 2000-06-13 |
| EA200100580A1 (en) | 2001-12-24 |
| SE9804037L (en) | 2000-05-26 |
| CN1333868A (en) | 2002-01-30 |
| EP1153257A1 (en) | 2001-11-14 |
| EA002536B1 (en) | 2002-06-27 |
| WO2000031489A1 (en) | 2000-06-02 |
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