EP2795219A2 - Échangeur de chaleur modulaire - Google Patents
Échangeur de chaleur modulaireInfo
- Publication number
- EP2795219A2 EP2795219A2 EP12809776.3A EP12809776A EP2795219A2 EP 2795219 A2 EP2795219 A2 EP 2795219A2 EP 12809776 A EP12809776 A EP 12809776A EP 2795219 A2 EP2795219 A2 EP 2795219A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- modules
- fluid
- combustion chamber
- module
- 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
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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/06—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
- F24H1/30—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle being built up from sections
-
- 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
- F28D2021/0024—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for combustion apparatus, e.g. for boilers
Definitions
- Modular heat exchanger The invention relates to a modular heat exchanger according to the preamble of claim 1.
- Heat exchangers are known in various forms in the prior art. They serve to transfer heat between two differently tempered media, without these media touching each other directly, so have a direct contact surface. As media different fluids are used. Thus, there are specially designed heat exchangers for two liquid media, or for two gaseous media or for a gaseous and a liquid medium. With the aid of heat exchangers, it is possible, in particular, to chemically separate two media from one another, but to thermally couple their different fluid circuits in such a way that a high heat transfer performance between the media is achieved. In many processes, it is necessary for the heat transfer efficiency to cool one of the media and / or to heat one of the media.
- the combustion or heating gas to be transferred to a liquid heat transfer fluid.
- heat exchangers of various sizes are manufactured for this purpose. The size increases correlated with the heat to be transferred.
- the shapes of the heat exchangers are often very complex due to the fluid channels provided in the interior.
- few companies have the necessary technologies to produce modern aluminum block heat exchangers. Accordingly, both the costs for the production tools and the production costs themselves are correspondingly high.
- the object of the invention is thus to eliminate the disadvantages of the prior art and to develop a heat exchanger which can be produced quickly and nevertheless individually using less expensive tools and low production costs. He should be high Have heat transfer performance and be suitable for use in a heater. In addition, it should have a high quality and easy handling. This is achieved with the features of claim 1 according to the invention. Advantageous developments can be found in the dependent claims.
- the invention relates to a modular heat exchanger comprising a connecting plate and at least two adjacently arranged heat exchanger modules each having a fluid channel whose inlet opening and outlet opening are aligned in the direction of the connecting plate, wherein the connecting plate has at least one connecting channel which forms a hydraulic connection between the fluid channels of two heat exchanger modules , and wherein the adjacent heat exchanger modules and the connecting plate radially surround a combustion chamber, wherein the heat exchanger modules adjoin the combustion chamber.
- the entire heat exchanger also forms a modular system that is easy to handle, but at the same time allows the individual composition of a tailored to the particular needs heat exchanger.
- connection plate can be provided to provide a special item for each size.
- connection plate may be configured such that the connection plate comprises a base plate with holes, the connection channels being all disposed on one side of the base plate and each hydraulically connecting at least two holes.
- the connecting channels could be arranged in particular on the side facing away from the heat exchanger modules side of the base plate.
- the base plate is flat.
- Such a connection plate can be manufactured by simple production of the base plate from a flat material with subsequent joining with the connection channels. The latter could for example be glued to the base plate or materially connected. For the latter, welds offer.
- a fluid can be passed.
- the fluid is preferably water or another heat transfer medium.
- combustion can be carried out in the combustion chamber, so that hot gas flows through the combustion chamber, the heat of which is transferable to the fluid via the heat exchanger modules.
- the heat exchanger has a thermal external insulation (thermal insulation).
- connection channels For cooling the base plate during a burner operation, a respective channel wall of the connection channels could be formed by the base plate. This can be achieved, for example, by means of a hollow body which is open on one side and which is connected to the open side with the base plate, and at the same time comprises at least two holes of the base plate with the opening.
- connection channels can be arranged in a loop or transversely on the base plate, so that a large surface area of the base plate forms channel walls.
- Each connecting channel preferably connects an outlet opening of a heat exchanger module hydraulically to the inlet opening of an adjacent heat exchanger module.
- a circuit without parallel connection of the fluid channels can be achieved. This reduces convection currents of the fluid and the highest possible heat transfer capacity is achieved.
- the connection plate additionally has a fluid inlet and a fluid outlet. Through this, the heat exchanger is finally integrated into an external fluid circuit.
- the fluid inlet is preferred with only one Input side of a fluid channel of a heat exchanger module connected, and the fluid outlet preferably only with an output side of a fluid passage of a heat exchanger module. Furthermore, the design of the fluid channels is hardly limited due to the reduced complexity.
- the fluid channels can be carried out selectively so that a thermally uniform expansion of the heat exchanger takes place.
- highly heated thermal zones with foreseeable channels are particularly easy to cool.
- An embodiment of the invention provides that the fluid channels of the heat exchanger modules have a section with a semicircular direction change. As a result, they are connectable to a flat plate, because then both the inlet opening and the outlet opening of the fluid channel point in the same direction. By a semicircular change in direction would give a semi-circular or U-shaped cross-section of the combustion chamber.
- the great design freedom of the fluid channels also allows the realization of a very low flow resistance for fluid flowing through.
- the fluid channels may, for example, have a rectangular, round, oval or elliptical line cross-section.
- a rectangular cross section material thickening in the region of the heat transfer surfaces are avoidable, even if the combustion chamber has a smooth tubular wall.
- wide sealing surfaces between the modules are providable.
- the inventively provided connecting plate and the heat exchanger modules can thus form a closed in a direction transverse to the stacking direction of the heat exchanger annular body, wherein in the center of the ring body, a hollow interior is formed, which has an opening in the direction of stacking top and bottom and is closed in the radial direction ,
- This interior can, for example, form the combustion chamber for a heating burner.
- the heat exchanger modules at the openings may have a different design than the heat exchanger modules arranged between them.
- the deviating design may be necessary to fulfill additional functions. These include, for example, the connection of a burner or a gas outlet duct or the formation of a stand area. It is also conceivable to design the surface of the individual modules differently.
- the size of the heat exchanger is determined primarily by the number of average heat exchanger modules. This allows a modular adaptation of the heat exchanger to the required heat transfer performance, in particular also to different combustion devices. Thus, heat exchangers with matching module combinations can be produced at low cost for all combustion device sizes, all of which are composed of only a few system components.
- An embodiment of the invention further provides that the adjacent heat exchanger modules adjoin each other with sealing surfaces. Due to the formation of sealing surfaces, the combustion chamber for gas can be made impermeable. Sealing surfaces have a high temperature resistance and are subject to only a small aging under thermal cycling. In addition, the heat can also be transferred from one heat exchanger module to an adjacent one. The thermal heat distribution is so evenly throughout the heat exchanger and thermal stresses low.
- a seal can be arranged between two adjacently arranged heat exchanger modules.
- a gasket alone can seal two adjacent heat exchanger modules. But it can also complement each opposite seals.
- thermal deformations can be compensated, so that the seal is always reliably guaranteed.
- the heat exchanger modules are connected to each other via clamping means.
- the clamping means are thus suitable to hold the heat exchanger modules together.
- the heat exchanger modules are acted upon by a clamping force relative to one another by a pressure force.
- the heat exchanger modules can be pressed together, so that, for example, the sealing surfaces or the seals between the heat exchanger modules are sealed.
- the tensioning means could be, for example, a tension spring or a tensioning screw.
- the heat exchanger can be supplemented in that a first termination module is arranged at its first end, wherein the first termination module has an outlet opening for having the combustion chamber.
- the first termination module can also have a fluid channel, which is current-connected to a heat exchanger module via a connection channel of the connection plate. Through such a channel and the first termination module of fluid can be flowed through and thus cooled. Accordingly, a higher heat transfer performance is achieved.
- the same first termination modules can be provided, which in turn keeps tooling and manufacturing costs low.
- a further supplement to the heat exchanger provides that a second termination module is arranged at its second end, wherein a combustion device can be arranged on the second termination module.
- This second termination module could for this purpose have fastening devices in order to fix the combustion device to this can.
- a burner head or a burner surface regularly protrude into the combustion chamber, so that the latter is to be kept free in the region of the burner.
- fins arranged in the second termination module could project less strongly into the combustion chamber than fins of the heat exchanger modules.
- the second termination module is preferably arranged geodetically above in the construction direction during a heat exchanger operation. It could also be a heat exchanger module with a fluid channel with an inlet opening and an outlet opening. In particular, it is expedient to design the fluid channel in the direction of the stratification of the heat exchanger modules higher than the other heat exchanger modules, so that space is available for the combustion device, in particular its burner head.
- the combustion device may further include a cover plate having a sealing surface mounted on the second termination module so that the sealing surface corresponds to a sealing surface of the second termination module.
- a cover plate having a sealing surface mounted on the second termination module so that the sealing surface corresponds to a sealing surface of the second termination module.
- the combustion device typically includes a burner and a blower.
- the geodetically arranged at the bottom termination module ie preferably the first termination module, should have a condensate water trap. This can be collected and derived on the cool surfaces of the combustion chamber resulting condensation.
- the connection plate has no fluid inlet and fluid outlet, these could also be arranged on the termination modules.
- the fluid inlet is preferably arranged on the lower termination module and the fluid outlet on the upper termination module.
- the fluid inlet on the connecting plate would preferably be arranged at the bottom and the fluid outlet at the top.
- the invention provides that the heat exchanger modules have projecting into the combustion chamber, for example, ribbed or nail-shaped fins made of good heat conducting material.
- the surface of the combustion chamber which can be flowed around by gas (combustion or heating gas), can be enlarged. Accordingly, the heat transfer performance of the heat exchanger increases considerably.
- the fins can run parallel to the stacking direction of the heat exchanger modules in order to achieve a good demolding during production.
- the flow of gas in the combustion chamber is so little impeded.
- the fins could also be aligned obliquely to the stacking direction. This would put the gas stream in rotation. This would optimize combustion.
- the heat exchanger modules, the connecting plate, the connecting channels, the fins and the base plate should be made of good heat conducting material, in particular aluminum or iron.
- Fig. 1 is an exploded view of a modular heat exchanger with a
- Fig. 2 two differently designed heat exchanger modules
- Fig. 3 is a connection plate.
- the modular heat exchanger 1 shows an exploded view of a modular heat exchanger 1 with a combustion device 60.
- the modular heat exchanger 1 has a connection plate 20 and five adjacently arranged heat exchanger modules 10, each having a fluid channel.
- the inlet openings 12 and the outlet openings 13 of the fluid channels are aligned in the direction of the connecting plate 20.
- the connecting plate 20 has a plurality of connecting channels 21, which each form a hydraulic connection between the fluid channels of two heat exchanger modules 10. At the same time they take the adjacent heat exchanger modules 10 and the connecting plate 20 a combustion chamber 30 radially and each heat exchanger module 10 adjacent to the combustion chamber 30 at.
- a first termination module 40 which has an outlet opening 41 for the combustion chamber 30, is arranged at a first end E1 of the heat exchanger 1.
- the closure module 40 has a condensate trap 42, and a seal 70 pointing toward the adjacent heat exchanger module.
- a second termination module 50 is arranged.
- This is likewise embodied as a heat exchanger module and therefore also has a fluid channel with an inlet opening 12 and an outlet opening 13 corresponding to the other heat exchanger modules 10.
- the incinerator 60 is arranged on the second closure module 50.
- the combustion device 60 comprises a cover plate 61 with a sealing surface 62, which corresponds to an opposing sealing surface 51 of the adjacent second closure module 50. In addition, it has a burner 63 and a fan 64. Between the adjacent modules 10, 40, 50 are each seals 70 are arranged. Due to the exploded position of the combustion device 60 can be seen on the second termination module 50 arranged fins 14, which project into the combustion chamber 30.
- the fins 14, the heat exchanger modules 10 and the second termination module 50 each consist of good heat-conducting material.
- each seals 70 are provided between the adjacent modules 10, 40, 50.
- the heat exchanger modules 10 and the second termination module 50 are connected to one another via tensioning means 80.
- the tensioning means 80 is a tensioning spring 81.
- Each module 10, 50 has an eyelet, through which the tensioning means 80 is guided in the stacking direction. The eyelet is arranged on the combustion chamber 30 side facing away from the modules 10, 50.
- the connecting plate 20 is a special item for the shown size of the heat exchanger 1. It comprises a planar base plate 24 with holes (25, see Fig. 3), wherein the connecting channels 21 and a fluid inlet 22 and a fluid outlet 23 are all arranged on one side of the base plate 24. This is in particular, the side facing away from the heat exchanger modules 10 side of the base plate 24.
- the connecting channels 21 connect two holes (25) of the base plate 24 hydraulically.
- the connecting plate 20 is made of a flat material, on which then the connecting channels 21, the fluid inlet 22 and the fluid outlet 23 are welded. In this case, each connecting channel 21 connects an outlet opening 13 of a heat exchanger module 10 hydraulically with the inlet opening 12 of an adjacent heat exchanger module 10. In this way, a flow channel K without branches, or without parallel connection of fluid channels 1 1, is formed.
- the connecting plate 20, the heat exchanger modules 10 and the end modules 40, 50 may also be manufactured as cast components, for example made of aluminum or iron.
- the flow channel K also includes the fluid inlet 22, which is flow-connected to an inlet opening 12 of the heat exchanger module 10 arranged at the first end E1, and the fluid outlet 23, which is flow-connected to an outlet opening 13 of the fluid channel of the second closure module 50.
- the fluid channels 11 of this and those of the heat exchanger modules 10 have a section with a semicircular change in direction. As a result, they are connectable to the flat base plate 24, since both the inlet openings 12 and the outlet opening 13 of the fluid channels facing in the same direction.
- the semicircular change in direction results in a U-shaped cross-section of the combustion chamber 30.
- the cross-sectional area of the modules 10, 40, 50 is also U-shaped. Due to the U-shape of the modules 10, 40, 50, these form together with the connecting plate 20 in a direction transverse to the stacking direction annular body. In the center of a hollow interior is formed, which has an opening in the direction of stacking top and bottom and is closed in the radial direction. This interior forms the combustion chamber 30.
- a fluid may be passed through the fluid and connection channels 21.
- the combustion chamber 30 is a combustion with the combustion device 60 feasible, so that hot gas flows through the combustion chamber 30, the heat via the heat exchanger modules 10 and the second termination module 50 is transferable to the fluid.
- 2 shows two heat exchanger modules of different design, of which, for example, the lower one can also be designed as (eg second) closure module 50, which is usually arranged on the second end E2 of a heat exchanger. Both each have a fluid channel 1 1, the inlet openings 12 and outlet openings 13 are aligned in the same direction. In the stacking direction, both the heat exchanger module 10 and the second closure module 50 has a U-shaped cross-section. From this U-shape, a combustion chamber 30 is enclosed radially.
- the second closure module 50 has sealing surfaces 51 arranged in the stacking direction.
- One of these sealing surfaces 51 corresponds to a sealing surface 15 of the heat exchanger module 10.
- the sealing surfaces 15, 51 are particularly wide.
- the heat exchanger module 10 and the second closure module 50 have fins 14 of good heat-conducting material which project into the combustion chamber 30. These are aligned parallel to the stacking direction and enlarge the surface of the heat exchanger module 10 and the second closure module 50 in the combustion chamber 30.
- the fins 14 of this project not as deep into the combustion chamber 30 as the fins 14 of the heat exchanger module 10.
- the second termination module 50 has a height in the stacking direction, which depends on the height of the heat exchanger module 10th differs. This is designed for the requirements of the combustion device and in the illustration shown greater than that of the heat exchanger module 10.
- the height of the heat exchanger module 10, however, is designed to the desired graduation size different sized heat exchanger. The lower its height, the smaller are the differences in the sizes of the heat exchangers, which can be assembled with the heat exchanger modules 10.
- the illustrated modules 10, 50 can be manufactured cost-effectively, for example, by forming a square tube and then attaching the fins 30 to the inside radius of the U-shape. If necessary, the sealing surfaces 15, 51 can be reworked by planning, for example, with a planing machine.
- Fig. 3 shows a connecting plate 20.
- This consists of a flat base plate 24 with holes 25, wherein two holes 25 are connected by a connecting channel 21.
- One of the connected holes 25 is in each case connected to an inlet opening 12 of a fluid channel of a heat exchanger module, and the other hole 25 to the outlet opening 13 of a fluid channel of an adjacent heat exchanger module.
- the connecting plate 20 has a fluid inlet 22, which is connectable to an inlet opening 12 of a fluid channel of a heat exchanger module, and a fluid outlet 23, which is connectable to an outlet opening 13 of a fluid channel of a heat exchanger module.
- connection channels 21, the fluid inlet 22 and the fluid outlet 23 are all arranged on one side of the base plate 24.
- the connecting channels 21 are arranged on the side facing away from the heat exchanger modules of the base plate 24.
- Such a connection plate 20 can be manufactured by simple production of the base plate 24 from a flat material with subsequent joining with the connection channels 21. The latter are welded onto the base plate.
- connection channels 21 are initially open in the direction of the base plate 24 prior to their assembly. Around this opening, the connection channels 21 are connected to the base plate 24. As can be seen, the connecting channels 21 are arranged in a loop shape on the base plate 24, so that a large surface of the base plate 24 forms channel walls 26. This means that the connected holes 25 are not connected in the most direct way, but the connecting channels 21 are specifically designed to be longer. Accordingly, the base plate 24 can transfer a lot of heat to a flowing through the connecting channels 21 fluid in burner operation, whereby the base plate 24 is ultimately cooled. LIST OF REFERENCE NUMBERS
- connection plate 70 seal
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TR201112691 | 2011-12-20 | ||
PCT/EP2012/075978 WO2013092601A2 (fr) | 2011-12-20 | 2012-12-18 | Échangeur de chaleur modulaire |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2795219A2 true EP2795219A2 (fr) | 2014-10-29 |
EP2795219B1 EP2795219B1 (fr) | 2017-12-06 |
Family
ID=47501225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12809776.3A Not-in-force EP2795219B1 (fr) | 2011-12-20 | 2012-12-18 | Échangeur de chaleur modulaire |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2795219B1 (fr) |
CN (1) | CN104024780A (fr) |
WO (1) | WO2013092601A2 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2011646C2 (en) * | 2013-10-18 | 2015-04-23 | Dejatech Ges B V | Heat exchanger, set and method for forming the same. |
EP3430342A1 (fr) * | 2016-03-16 | 2019-01-23 | Linde Aktiengesellschaft | Liaison sur toute la surface de blocs d'échange thermique par élargissement hydraulique de tubes entre des profilés |
DE102017208565A1 (de) * | 2017-05-19 | 2018-11-22 | Robert Bosch Gmbh | Wärmeübertrager, Kühlsystem einer Batterie und Verfahren zur Kühlung einer Batterie |
WO2019008006A1 (fr) * | 2017-07-07 | 2019-01-10 | Bekaert Combustion Technology B.V. | Segment coulé pour échangeur de chaleur sectionnel |
CN114623716B (zh) * | 2020-12-14 | 2023-04-07 | 中国科学院大连化学物理研究所 | 一种模块化多介质复合热交换器 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US418117A (en) * | 1889-12-24 | Fourth to walter rodgers fletcher | ||
US1840499A (en) * | 1927-09-13 | 1932-01-12 | Europ Novelties And Patents Co | Furnace |
DE10013608C2 (de) * | 2000-03-18 | 2002-01-31 | Bosch Gmbh Robert | Wärmetauscher für ein Gasbrennwertgerät |
DE10015645B4 (de) * | 2000-03-29 | 2006-05-11 | Robert Bosch Gmbh | Wärmetauscher für Brennwertgeräte |
ITMI20070955A1 (it) * | 2007-05-11 | 2008-11-12 | Angelo Rigamonti | "caldaia con elementi di scambio termico variamente sagomati" |
DE102007060508A1 (de) * | 2007-12-15 | 2009-06-18 | Robert Bosch Gmbh | Wärmetauscher für ein Heizgerät |
CN102064744B (zh) * | 2010-11-08 | 2014-04-09 | 华南理工大学 | 一种燃气热水器余热发电装置 |
-
2012
- 2012-12-18 CN CN201280062357.1A patent/CN104024780A/zh active Pending
- 2012-12-18 EP EP12809776.3A patent/EP2795219B1/fr not_active Not-in-force
- 2012-12-18 WO PCT/EP2012/075978 patent/WO2013092601A2/fr active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2013092601A2 * |
Also Published As
Publication number | Publication date |
---|---|
CN104024780A (zh) | 2014-09-03 |
WO2013092601A3 (fr) | 2013-09-19 |
WO2013092601A2 (fr) | 2013-06-27 |
EP2795219B1 (fr) | 2017-12-06 |
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