EP0328043A1 - Echangeur - Google Patents
Echangeur Download PDFInfo
- Publication number
- EP0328043A1 EP0328043A1 EP89102074A EP89102074A EP0328043A1 EP 0328043 A1 EP0328043 A1 EP 0328043A1 EP 89102074 A EP89102074 A EP 89102074A EP 89102074 A EP89102074 A EP 89102074A EP 0328043 A1 EP0328043 A1 EP 0328043A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- tension rods
- header
- exchanger according
- sections
- 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
Images
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
- F28F9/02—Header boxes; End plates
- F28F9/0243—Header boxes having a circular cross-section
-
- 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
- F28D7/06—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 having a single U-bend
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49352—Repairing, converting, servicing or salvaging
Definitions
- the invention relates to a heat exchanger according to the preamble of patent claim 1.
- Such heat exchangers which are particularly suitable for high gas temperatures and high thermal, cyclical loads, have so far been produced in that the individual components, i. H. the profile tubes and header sections are firmly connected to one another by means of soldering or welding. Solutions are known in which the header pipes consist of two half shells joined together. Alternatively, they can also consist of individual shorter pipe sections, which are arranged one behind the other and soldered to one another.
- a disadvantage of the designs described is that, in the event of leaks, which can occur either as a result of incorrect manufacture or as a result of material fatigue, an expensive repair or even an exchange of the entire heat exchanger is often required.
- the object of the invention is to improve a heat exchanger of the generic type in such a way that a simple and therefore inexpensive repair is possible in the event of leaks.
- the manifolds As a number of manifold sections arranged one behind the other and releasably braced together, it is possible to close them in the event of a leak in the heat exchanger disassemble and replace the faulty element. This enables considerably more economical production and maintenance of the heat exchanger.
- the solution according to the invention results in technical simplifications and thus cost reductions in the case of new production and in the repair of heat exchangers which have already been in operation and in which flawless elements can be reused.
- the inspection of individual heat exchanger elements is also much easier than the inspection of a complete heat exchanger.
- the fact that the tension rods are arranged in the interior of the header pipes ensures that unchanged installation dimensions can be achieved compared to conventional designs. This also prevents thermal expansion due to the external hot gas flow from reducing the clamping force.
- the tension rods have an annular section-like cross-sectional shape adapted to the manifold curvature and abut the inner walls of the manifolds.
- a symmetrical prestressing of the collecting tube can be achieved, the tension rods assuming approximately the temperature of the inner wall of the collecting tube and thermal stresses thus remaining low.
- flow losses through components arranged inside the pipe are prevented.
- Two or more tension rods can be distributed on the inner circumference of the collecting tube.
- the tension rods are insulated from the interior of the header pipes. This is preferably done by providing shield plates and / or insulating layers attached to the tie rod. This further supports the desired effect of the same temperature of the collecting tube and tension rods.
- Another preferred embodiment of the invention provides that the tension rods are screwed from the outside to at least one of the header end sections. This enables simple and releasable bracing of the header pipes.
- Means for setting a defined prestress on the tension rods are preferably provided, which can be designed as fitting pieces and have meanwhile been inserted into the header end sections and the ends of the tension rods. In this way, an uncomplicated and reproducible adjustable bracing of the heat exchanger can be achieved.
- FIG. 1 shows a heat exchanger 1, the manifolds 2 and 3 of which consist of a plurality of manifold sections 5, 6 arranged one behind the other.
- the manifolds 2 and 3 are connected to one another via a plurality of U-shaped profile tubes 21.
- the mode of operation of the heat exchanger is as follows: A cool gas flow enters the collecting pipe 3 via openings in the collecting pipe section 12. The gas flow divides and flows through the plurality of U-shaped profile tubes embedded in the collecting tube 3 to the collecting tube 2.
- the gas heats up due to the hot gas flowing in the cross-countercurrent in the direction indicated by 36.
- the heated inner gas stream combines again in the collecting pipe 2 and flows off.
- FIG. 2 shows a cross section through a header section 5, in which the tension rods 7 and 8 are arranged on opposite sides of the tube wall 22.
- the pull rod 7 is shown in the sectional plane, while the pull rod 8 is shown with the fastening threaded bores 23 provided at the ends.
- a number of profile tubes 21 are attached, which are sealingly connected to the tube wall 22 by means of welding or soldering.
- guide shoulders 24, 25 are provided near the pipe ends, which prevent the tie rods 7, 8 from slipping sideways or twisting the header sections against one another.
- the tension rods 7, 8 are provided with an insulating layer 10 and a shield plate 28 for the purpose of shielding the interior 9 of the header section 5.
- Fig. 3 shows a tension rod 7 which bears against the inside of the tube wall 22.
- Guide shoulders 24 are provided in the vicinity of the abutment points of manifold sections 5, 6, which prevent the tie rods or the manifold sections 5, 6 from slipping sideways.
- the tension rods 7 and 8 are machined to form parallel side surfaces 27, which enables simple mounting of the tension rods.
- the tension rods 7 and 8 are fitted in such a way that the parallel side surfaces 27 lie at the level of the guide shoulders 27; the zone of the circular segments 30 can then be brought into engagement with the guide shoulders 24 by displacing the tension rods 7, 8 in the longitudinal direction.
- the end region 31 of the tension rod 7 is widespread, so that the tension rod 7 is supported when tension is applied via the shoulders 32 and the header sections 5, 6 are pressed against one another in a sealing manner.
- two header pipe sections 5 and 6 are arranged one behind the other, the end of the header pipes being formed by the header pipe end section 11.
- Two opposite tie rods 7 and 8 run along the inner wall of the collector tube 2, as a result of which they are provided at their ends opposite the collector tube end section 11 with fastening flanges and threaded bores 23 arranged therein, by means of which the tie rods 7 and 8 are clamped to the collector tube end section 11 by means of screws 34.
- fitting pieces 13 are provided between the tension rods 7, 8 and the header end section 11.
- the oval bores 35 provided for the introduction of the profiled tubes 21 in the collecting tube sections 5 and 6 are indicated in some areas in FIG. 4.
- a construction of the collecting pipes 2 and 3 is preferably to be provided, in which the two ends of each tension rod 7, 8 are designed according to FIGS. 3 and 4, that is to say they are supported at one end on the shoulders 32 and at the other end with the collecting pipe end sections 11 and 12 are tense.
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3803948 | 1988-02-10 | ||
DE3803948A DE3803948A1 (de) | 1988-02-10 | 1988-02-10 | Waermetauscher |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0328043A1 true EP0328043A1 (fr) | 1989-08-16 |
EP0328043B1 EP0328043B1 (fr) | 1991-08-28 |
Family
ID=6347009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89102074A Expired - Lifetime EP0328043B1 (fr) | 1988-02-10 | 1989-02-07 | Echangeur |
Country Status (4)
Country | Link |
---|---|
US (1) | US4969510A (fr) |
EP (1) | EP0328043B1 (fr) |
JP (1) | JP2730587B2 (fr) |
DE (1) | DE3803948A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3911257C2 (de) * | 1989-04-07 | 1994-05-26 | Mtu Muenchen Gmbh | Wärmetauscher |
US5177865A (en) * | 1989-05-05 | 1993-01-12 | Mtu Motoren-Und Turbinen-Union | Method for making heat exchanger having at least two collecting pipes |
DE3914773C2 (de) * | 1989-05-05 | 1994-03-03 | Mtu Muenchen Gmbh | Wärmetauscher mit mindestens zwei Sammelrohren |
US5623987A (en) * | 1992-08-04 | 1997-04-29 | Ergenics, Inc. | Modular manifold gas delivery system |
CN100453950C (zh) * | 2005-02-16 | 2009-01-21 | 吕学能 | 蜗旋型冷媒盘管及无鳍片冷凝器 |
DE102006021436A1 (de) * | 2006-05-09 | 2007-11-15 | Mtu Aero Engines Gmbh | Gasturbinentriebwerk |
US20120103578A1 (en) * | 2009-04-29 | 2012-05-03 | Westinghouse Electric Company Llc | Modular plate and shell heat exchanger |
DE102010037152B4 (de) * | 2010-08-25 | 2022-08-25 | Gea Wtt Gmbh | Plattenwärmetauscher in abgedichteter Ausführung |
US10190828B2 (en) * | 2015-10-22 | 2019-01-29 | Hamilton Sundstrand Corporation | Heat exchangers |
US20220325914A1 (en) * | 2019-08-12 | 2022-10-13 | Enjay Ab | A battery device for a ventilation system |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH205111A (de) * | 1938-08-15 | 1939-06-15 | Spielvogel Erwin | Gusseiserner Gliederheizkörper. |
DE1928146A1 (de) * | 1968-06-06 | 1969-12-11 | Delaney Gallay Ltd | Waermeaustauscher |
FR2122303A1 (fr) * | 1971-01-19 | 1972-09-01 | George Auguste | |
US3689972A (en) * | 1970-11-19 | 1972-09-12 | Modine Mfg Co | Method of fabricating a heat exchanger |
GB2078361A (en) * | 1980-06-24 | 1982-01-06 | Delanair Ltd | Heat exchangers and heat exchanger headers |
DE3146089A1 (de) * | 1981-11-20 | 1983-07-07 | MTU Motoren- und Turbinen-Union München GmbH, 8000 München | "waermetauscher fuer gase stark unterschiedlicher temperaturen" |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE214188C (fr) * | ||||
US916640A (en) * | 1908-03-23 | 1909-03-30 | Robert Warg | Steam-radiator. |
GB134277A (en) * | 1918-10-24 | 1919-10-24 | John Melville James | Improvements in or relating to Radiators for Cooling Fluids. |
DE730039C (de) * | 1935-12-11 | 1943-01-06 | Getefo Ges Fuer Tech Fortschri | Kuehler fuer Luft- und Kraftfahrzeuge |
FR859510A (fr) * | 1939-05-22 | 1940-12-20 | Chausson Usines Sa | Radiateur perfectionné |
DE1928146U (de) | 1965-09-03 | 1965-12-02 | H & K Moll O H G | Rundstaender zum aufstellen von ordnern od. dgl. schriftgutbehaeltern. |
DE3543893A1 (de) * | 1985-12-12 | 1987-06-25 | Mtu Muenchen Gmbh | Waermetauscher |
DE3635549C1 (de) * | 1986-10-20 | 1988-03-03 | Mtu Muenchen Gmbh | Waermetauscher |
-
1988
- 1988-02-10 DE DE3803948A patent/DE3803948A1/de active Granted
-
1989
- 1989-01-30 US US07/303,947 patent/US4969510A/en not_active Expired - Fee Related
- 1989-02-07 EP EP89102074A patent/EP0328043B1/fr not_active Expired - Lifetime
- 1989-02-09 JP JP1028820A patent/JP2730587B2/ja not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH205111A (de) * | 1938-08-15 | 1939-06-15 | Spielvogel Erwin | Gusseiserner Gliederheizkörper. |
DE1928146A1 (de) * | 1968-06-06 | 1969-12-11 | Delaney Gallay Ltd | Waermeaustauscher |
US3689972A (en) * | 1970-11-19 | 1972-09-12 | Modine Mfg Co | Method of fabricating a heat exchanger |
FR2122303A1 (fr) * | 1971-01-19 | 1972-09-01 | George Auguste | |
GB2078361A (en) * | 1980-06-24 | 1982-01-06 | Delanair Ltd | Heat exchangers and heat exchanger headers |
DE3146089A1 (de) * | 1981-11-20 | 1983-07-07 | MTU Motoren- und Turbinen-Union München GmbH, 8000 München | "waermetauscher fuer gase stark unterschiedlicher temperaturen" |
Also Published As
Publication number | Publication date |
---|---|
EP0328043B1 (fr) | 1991-08-28 |
DE3803948A1 (de) | 1989-08-24 |
US4969510A (en) | 1990-11-13 |
JPH01247989A (ja) | 1989-10-03 |
JP2730587B2 (ja) | 1998-03-25 |
DE3803948C2 (fr) | 1990-04-05 |
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