EP2452145B1 - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- EP2452145B1 EP2452145B1 EP10728682.5A EP10728682A EP2452145B1 EP 2452145 B1 EP2452145 B1 EP 2452145B1 EP 10728682 A EP10728682 A EP 10728682A EP 2452145 B1 EP2452145 B1 EP 2452145B1
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- EP
- European Patent Office
- Prior art keywords
- heat exchange
- section
- flow paths
- exchange device
- 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.)
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- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 10
- 239000002826 coolant Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- 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
- F28D7/0041—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 parts touching each other or tubes assembled in panel form
-
- 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
- F28D7/0008—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 one medium being in heat conductive contact with the conduits for the other medium
-
- 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
- F28D7/16—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 in parallel spaced relation
- F28D7/163—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 in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
- F28D7/1669—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 in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having an annular shape; the conduits being assembled around a central distribution tube
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- 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
- F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods
-
- 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
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
- F28F9/0275—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple branch pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements
Definitions
- the present invention relates to a heat exchange device for cooling a gas, comprising a channel and one or more heat exchange surfaces disposed in the channel, supported by a support structure.
- the present invention relates, in particular, to a heat exchange device according to the preamble of claim 1 as disclosed in US 3,433,298 .
- Such heat exchangers are for example used in gasification processes for the production of synthetic gas, or syngas.
- carbonaceous feedstock is partially oxidised in a reactor.
- Syngas leaving the reactor typically has a temperature of 1300-1600 °C.
- the hot syngas is quenched to temperatures between 100-700 °C and is then transported to a coiled heat exchanger, generally comprising a number of parallel coiled tubes.
- Support structures are used to support the heat exchange surfaces within the channel formed by the channel wall. Differences in thermal expansion of the various parts complicate possible support constructions. Sliding bearings can be used, allowing some degree of freedom of movement, but such bearings are difficult to realize and less reliable under the circumstances in such reactors.
- US 5,482,110 discloses a heat exchanger for cooling syngas from a partial combustion reactor comprising nested heat exchange surfaces carried by a support. Such a support structure may induce high local stress peaks.
- the object of the invention is achieved by a heat exchange device according to claim 1.
- the heat exchange surfaces can rest on the support structure, or the heat exchange surfaces can hang down from the support structure.
- the one or more heat exchange surfaces can be connected to the support structure, e.g., by welding joints.
- the support structure can be joined to the channel wall, or to a load bearing structure within the channel wall.
- the device can for instance have a number of nested heat exchange surfaces of a closed geometry, e.g., of a cylindrical geometry, as is disclosed in US 5,482,110 .
- the heat exchange surfaces can be coaxially arranged or nested within the channel wall, which will typically be cylindrical.
- the support structure can support a series of two or more bundles of nested heat exchange surfaces.
- the fluid heat exchange medium is water, although any other type of aqueous or non-aqueous coolant can be used if so desired.
- the support structure can comprise a plurality of embedded parallel inner channels each being in open connection with one of the flow paths in the heat exchange surfaces.
- the inner channels are preferably evenly distributed and equidistantly arranged.
- the inner channels may meander through the arm parts of the support structure. Since meandering inner channels are difficult to manufacture, the arm parts may be built of a number of sections each embedding parallel and equidistant inner channels making a single turn, e.g., of about 90 degrees.
- each arm of the support structure may comprise:
- the heat distribution with this configuration is such that differences in thermal expansion of the connected parts do not result in high mechanical stress loads.
- the arms of the support structure can for example be formed as blocks or plates embedding inner channels operatively connected to the tubular parts.
- one or more of the arms of the support structure can wholly or partly be composed of tubular parts, optionally in combination with blocks or plates embedding inner channels operatively connected to the tubular parts.
- the height of the support structure can be increased. This way, the support structure can be made stronger without increasing the thickness of the support structure arms, which could result in undesirable high wall temperatures of the support structure.
- the thickness of the arms of the support structure should be sufficient to give the support structure the required carrying capacity. Generally, a wall thickness of 5-20 mm at both sides of an inner channel balances sufficient strength with good heat dissipation capacity.
- the heat exchange surfaces are cleaned by rapping devices which can regularly be actuated during operation of the reactor.
- rapping devices which can regularly be actuated during operation of the reactor.
- pneumatically operated rapping devices the individual heat exchange surfaces are accelerated to such an extent, that soot deposits and fouling are effectively removed.
- Cleaning by rapping can be done particularly effectively if all tubes of one heat exchange surface unit are rigidly connected to one constructive gastight unit, e.g., by constructing the heat exchange surfaces as a tube-stay-tube or fin-tube construction.
- the heat exchange surfaces can be assembled as a plurality of nested heat exchange surfaces of a closed geometry whereby the inner heat exchange surface has a greater constructive height than the adjacent outer heat exchange surface so that each heat exchange surface can be rapped from the exterior without the need for penetrating any other heat exchange surfaces.
- one or more deflectors arranged within the inner heat exchange surface of the nested set may be used to guide the hot gas flow towards the heat exchange surfaces, in order to cool all of the gas evenly.
- the heat exchange device according to the present invention can for example be a section of a partial combustion reactor for the production of synthetic gas.
- Figure 1A shows in longitudinal cross section a heat exchange section 1 of a partial combustion reactor for the production of syngas.
- the section 1 comprises a cylindrical outer wall 2.
- the outer wall 2 encloses a concentrically arranged inner channel wall or membrane 3 built of parallel tubular pipe lines, schematically represented in the drawing by centrelines.
- the tubular pipe lines of the inner channel wall 3 are welded together - e.g., directly or via fins - to form a gastight wall.
- a cooling medium, such as water flows through the pipe lines of the channel wall 3.
- the inner channel wall 3 encloses a set of four schematically represented nested coaxial heat exchange surfaces 5a, 5b, 5c, and 5d. In practice, two or more may be used-for example heat exchange surfaces 5a and 5b. Like the inner channel wall 3, the heat exchange surfaces 5a - d are built of parallel tubular lines. Optionally, the tubular lines of the heat exchange surfaces 5a - d can be helically wound.
- the inner channel wall or membrane 3 defines a central channel 4a for hot gas flowing downwards along the heat exchange surfaces 5a - d towards a discharge.
- the cooled gas can enter the annular space 4b between the inner channel wall 3 and the outer wall 2. Coolant flowing through the pipe lines of inner channel wall 3 isolates the cool gas in the annular channel 4b from the hot gas in the central channel 4a.
- each inner heat exchange surface 5b - d extends past the lower end 6 of the adjacent outer heat exchange surface 5a - c, respectively. This way, each individual heat exchange surface 5a - d can be cleaned individually by using rapper devices (not shown).
- coolant discharge lines 7 are provided between the inner channel wall 3 and the outer channel wall 2, as schematically shown in Figure 1B .
- the discharge end 8 of the lines 7 passes the outer wall 2 to form a connection to a coolant discharge.
- the discharge lines 7 and at a distance below these discharge lines 7, are four supply lines 9.
- the upper ends 10 of the supply lines 9 pass through the outer wall 2 to form a connection to a coolant supply.
- Coolant feed lines 16 connect the supply lines 9 to the heat exchange surfaces 5a - d.
- the arrangement of the supply lines and discharge lines can also be reversed depending on the cooling media.
- a horizontal support cross 20 has four arms 21 extending from a central crossing 22 to a corresponding coolant discharge line 7.
- the support cross 20 is shown in more detail in Figures 2A and 2B .
- Parallel inner channels 23 run through the arms 21, each inner channel 23 being in open connection with the flow paths in the heat exchange surfaces 5a - d.
- the inner channels 23 are evenly distributed over the corresponding arm 21.
- the top side of each of the heat exchange surfaces 5a - d comprises two vertical line sections 19, axially symmetrically arranged, extending vertically towards the support cross 20, where they are connected to the embedded inner channels 23, as shown in Figure 1A .
- Each arm 21 comprises a first and a second lower arm part 24, 25 respectively, and an upper arm part 26.
- first lower arm part 24 equidistantly arranged parallel flow paths 27 have a first part 27a extending upwardly to a first corner 27b and a second section 27c extending in the direction of the crossing section 22.
- the flow paths 28 in the second lower arm parts 25 have a first horizontal section 28a in line with the respective flow paths 27c in the first part 24 extending to a second corner 28b, and a second section 28c extending upwardly from the second corner 28b.
- the flow paths 29 in the upper arm parts 26 have a first vertical section 29a in line with the respective flow paths 28 in the second lower arm part 25 extending upwardly to a third corner 29b, and a second section 29c extending from the third corner 29b away from the crossing section 22.
- extension parts 30 are rectangular parts with equidistantly arranged inner channels 31 embedded in line with the horizontal channel sections 28c in the upper arm parts 26.
- Blocks 32 are attached to both sides of the extension part 30.
- the blocks 32 are in line with the inner channel wall 3 and have the same curvature.
- the blocks 32 are provided with inner channels 33 which are operatively connected to the tubular lines 4 in the channel wall 3.
- FIG. 3 shows in side view an alternative support cross 40 for a heat exchanger according to the present invention.
- the support cross comprises four arms 41 of equal length forming a cross with a centre part 42.
- Each arm 41 is made of four sections: a lower main section 43, a lower central section 44, an upper centre section 45 and an upper main section 46.
- Inner channels 47a and 47b are embedded in the lower main section 43 with a vertically extending channel section 47a at the lower side of the lower main section 43 and a horizontally extending channel section 47b, extending to a lateral side of the lower main section 43. Three of the channel sections 47b extend towards the adjacent lower central section 44.
- the upper one of channels sections 47b has its upper longitudinal half formed as a pipeline in a rectangular cut-out 48 in the lower main section 43.
- Inner channels 49a and 49b are embedded in the lower central section 44, having horizontal channel sections 49a connected at one end to the channel sections 47b in the lower main section 43, and to vertical channel sections 49b at their other end.
- the lower central section 44 is mirrored by the upper central section 45, which embeds inner channels 50a and 50b, with vertical sections 50a in line with the vertical inner channels sections 49b in lower central section 44.
- Horizontal channels sections 50b lead from the vertical channel sections 50a to the side of the upper central section 45 opposite the centre 22.
- the upper main section 46 is made of three horizontal parallel pipe lines 51 operatively connected to the horizontal channel sections 50b in upper central section 45.
- the pipe lines 51 lead to an extension block 52 with three inner channels 53 connected to the pipe lines 51.
- FIG 4 shows a heat exchange device 60 similar to the heat exchange device of Figure 1A and 1B .
- the same reference numbers are used for parts that are the same in both embodiments.
- the heat exchange device in Figure 4 comprises two bundles 61, 62 in line above one another of four nested heat exchange surfaces 61a - d, 62a - d. Because of the double weight that has to be supported a support cross 63 is used which is thicker than the support cross 20 in Figure 1A .
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Description
- The present invention relates to a heat exchange device for cooling a gas, comprising a channel and one or more heat exchange surfaces disposed in the channel, supported by a support structure. The present invention relates, in particular, to a heat exchange device according to the preamble of claim 1 as disclosed in
US 3,433,298 . - Such heat exchangers are for example used in gasification processes for the production of synthetic gas, or syngas. In such a process, carbonaceous feedstock is partially oxidised in a reactor. Syngas leaving the reactor typically has a temperature of 1300-1600 °C. The hot syngas is quenched to temperatures between 100-700 °C and is then transported to a coiled heat exchanger, generally comprising a number of parallel coiled tubes.
- Support structures are used to support the heat exchange surfaces within the channel formed by the channel wall. Differences in thermal expansion of the various parts complicate possible support constructions. Sliding bearings can be used, allowing some degree of freedom of movement, but such bearings are difficult to realize and less reliable under the circumstances in such reactors.
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US 5,482,110 discloses a heat exchanger for cooling syngas from a partial combustion reactor comprising nested heat exchange surfaces carried by a support. Such a support structure may induce high local stress peaks. - It is an object of the present invention to provide a heat exchanger device with a robust support structure enabling reduction of loads caused by differences in thermal expansion by the various parts.
- The object of the invention is achieved by a heat exchange device according to claim 1.
- The heat exchange surfaces can rest on the support structure, or the heat exchange surfaces can hang down from the support structure. The one or more heat exchange surfaces can be connected to the support structure, e.g., by welding joints. The support structure can be joined to the channel wall, or to a load bearing structure within the channel wall.
- The device can for instance have a number of nested heat exchange surfaces of a closed geometry, e.g., of a cylindrical geometry, as is disclosed in
US 5,482,110 . The heat exchange surfaces can be coaxially arranged or nested within the channel wall, which will typically be cylindrical. Optionally, the support structure can support a series of two or more bundles of nested heat exchange surfaces. - Generally, the fluid heat exchange medium is water, although any other type of aqueous or non-aqueous coolant can be used if so desired.
- The support structure can comprise a plurality of embedded parallel inner channels each being in open connection with one of the flow paths in the heat exchange surfaces. To equalize thermal expansion, the inner channels are preferably evenly distributed and equidistantly arranged. To this end, the inner channels may meander through the arm parts of the support structure. Since meandering inner channels are difficult to manufacture, the arm parts may be built of a number of sections each embedding parallel and equidistant inner channels making a single turn, e.g., of about 90 degrees. For example, each arm of the support structure may comprise:
- a first lower arm part with equidistantly arranged parallel flow paths with a first part extending upwardly to a first corner and a second section extending from the first corner in the direction of the crossing section;
- a second lower arm part with equidistantly arranged parallel flow paths having a first section in line with the second section of the respective flow paths in the first part extending to a second corner, and a second section extending upwardly from the second corner;
- an upper arm part with equidistantly arranged parallel flow paths having a first vertical section in line with the second section of the respective flow paths in the second lower arm part and extending upwardly to a third corner, and a horizontal second section extending from the third corner away from the crossing section.
- The heat distribution with this configuration is such that differences in thermal expansion of the connected parts do not result in high mechanical stress loads.
- The arms of the support structure can for example be formed as blocks or plates embedding inner channels operatively connected to the tubular parts. Alternatively, one or more of the arms of the support structure can wholly or partly be composed of tubular parts, optionally in combination with blocks or plates embedding inner channels operatively connected to the tubular parts.
- If a larger number of heat exchange surfaces, or heat exchange surfaces of a higher weight, are to be supported, the height of the support structure can be increased. This way, the support structure can be made stronger without increasing the thickness of the support structure arms, which could result in undesirable high wall temperatures of the support structure.
- The thickness of the arms of the support structure should be sufficient to give the support structure the required carrying capacity. Generally, a wall thickness of 5-20 mm at both sides of an inner channel balances sufficient strength with good heat dissipation capacity.
- Particularly for the cooling of deposit-forming gases from pressure-loaded pyrolysis and gasification reactors it is desirable that the heat exchange surfaces are cleaned by rapping devices which can regularly be actuated during operation of the reactor. With the aid of, e.g., pneumatically operated rapping devices the individual heat exchange surfaces are accelerated to such an extent, that soot deposits and fouling are effectively removed. Cleaning by rapping can be done particularly effectively if all tubes of one heat exchange surface unit are rigidly connected to one constructive gastight unit, e.g., by constructing the heat exchange surfaces as a tube-stay-tube or fin-tube construction.
- The heat exchange surfaces can be assembled as a plurality of nested heat exchange surfaces of a closed geometry whereby the inner heat exchange surface has a greater constructive height than the adjacent outer heat exchange surface so that each heat exchange surface can be rapped from the exterior without the need for penetrating any other heat exchange surfaces. Optionally, one or more deflectors arranged within the inner heat exchange surface of the nested set may be used to guide the hot gas flow towards the heat exchange surfaces, in order to cool all of the gas evenly.
- The heat exchange device according to the present invention can for example be a section of a partial combustion reactor for the production of synthetic gas.
- The invention is further explained under reference to the accompanying drawings. In the drawings:
-
Figure 1A : shows a longitudinal cross section of a heat exchange device according to the present invention; -
Figure 1B : shows the device ofFigure 1A in cross section; -
Figure 2A : shows in side view a support structure of the device ofFigure 1 ; -
Figure 2B : shows a plan view of the support structure ofFigure 2A ; -
Figure 3 : shows in side view of a second possible embodiment of a support structure according to the invention; -
Figure 4 : shows a longitudinal cross section of a further possible embodiment of a heat exchange device according to the present invention. -
Figure 1A shows in longitudinal cross section a heat exchange section 1 of a partial combustion reactor for the production of syngas. The section 1 comprises a cylindricalouter wall 2. Theouter wall 2 encloses a concentrically arranged inner channel wall ormembrane 3 built of parallel tubular pipe lines, schematically represented in the drawing by centrelines. The tubular pipe lines of theinner channel wall 3 are welded together - e.g., directly or via fins - to form a gastight wall. A cooling medium, such as water flows through the pipe lines of thechannel wall 3. - The
inner channel wall 3 encloses a set of four schematically represented nested coaxialheat exchange surfaces heat exchange surfaces inner channel wall 3, theheat exchange surfaces 5a - d are built of parallel tubular lines. Optionally, the tubular lines of theheat exchange surfaces 5a - d can be helically wound. - The inner channel wall or
membrane 3 defines acentral channel 4a for hot gas flowing downwards along theheat exchange surfaces 5a - d towards a discharge. At the lower end of theinner channel wall 3, the cooled gas can enter theannular space 4b between theinner channel wall 3 and theouter wall 2. Coolant flowing through the pipe lines ofinner channel wall 3 isolates the cool gas in theannular channel 4b from the hot gas in thecentral channel 4a. - The lower end 6 of each inner
heat exchange surface 5b - d extends past the lower end 6 of the adjacent outerheat exchange surface 5a - c, respectively. This way, each individualheat exchange surface 5a - d can be cleaned individually by using rapper devices (not shown). - Four or more equidistantly arranged
coolant discharge lines 7 are provided between theinner channel wall 3 and theouter channel wall 2, as schematically shown inFigure 1B . Referring back toFigure 1A , thedischarge end 8 of thelines 7 passes theouter wall 2 to form a connection to a coolant discharge. In line with thedischarge lines 7, and at a distance below thesedischarge lines 7, are foursupply lines 9. The upper ends 10 of thesupply lines 9 pass through theouter wall 2 to form a connection to a coolant supply.Coolant feed lines 16 connect thesupply lines 9 to the heat exchange surfaces 5a - d. The arrangement of the supply lines and discharge lines can also be reversed depending on the cooling media. - A
horizontal support cross 20 has fourarms 21 extending from acentral crossing 22 to a correspondingcoolant discharge line 7. Thesupport cross 20 is shown in more detail inFigures 2A and2B . Parallelinner channels 23 run through thearms 21, eachinner channel 23 being in open connection with the flow paths in the heat exchange surfaces 5a - d. Theinner channels 23 are evenly distributed over thecorresponding arm 21. The top side of each of the heat exchange surfaces 5a - d comprises twovertical line sections 19, axially symmetrically arranged, extending vertically towards thesupport cross 20, where they are connected to the embeddedinner channels 23, as shown inFigure 1A . - Each
arm 21 comprises a first and a secondlower arm part upper arm part 26. In the firstlower arm part 24, equidistantly arrangedparallel flow paths 27 have afirst part 27a extending upwardly to afirst corner 27b and asecond section 27c extending in the direction of thecrossing section 22. - In the second
lower arm part 25 are embedded equidistantly arranged parallel flow paths 28. Two of the four secondlower arm parts 25 form a single block, while the other two are formed as separate parts at opposite sides of the block and under right angles with it and are welded to a central section of the block to form a cross, as shown inFigure 2B . Referring back toFigure 2A , the flow paths 28 in the secondlower arm parts 25 have a firsthorizontal section 28a in line with therespective flow paths 27c in thefirst part 24 extending to asecond corner 28b, and asecond section 28c extending upwardly from thesecond corner 28b. - In the
upper arm part 26 are embedded equidistantly arranged parallel flow paths 29. Two of the fourupper arm parts 26 form a block, while the other twoupper arm parts 26 are formed as separate parts and are welded to the central section of the block to form a cross. The flow paths 29 in theupper arm parts 26 have a firstvertical section 29a in line with the respective flow paths 28 in the secondlower arm part 25 extending upwardly to athird corner 29b, and asecond section 29c extending from thethird corner 29b away from thecrossing section 22. - Opposite to the side forming the
crossing section 22, theupper arm parts 26 are joined to anextension part 30. Theseextension parts 30 are rectangular parts with equidistantly arrangedinner channels 31 embedded in line with thehorizontal channel sections 28c in theupper arm parts 26. - In this configuration, all parts of the
support cross 20 are evenly cooled by the evenly distributedinner channels arm parts - The outer ends of
inner channels arm parts circular rims 35. Thearm parts - Blocks 32 (see
Fig. 2B ) are attached to both sides of theextension part 30. Theblocks 32 are in line with theinner channel wall 3 and have the same curvature. Theblocks 32 are provided withinner channels 33 which are operatively connected to the tubular lines 4 in thechannel wall 3. -
Figure 3 shows in side view analternative support cross 40 for a heat exchanger according to the present invention. The support cross comprises fourarms 41 of equal length forming a cross with acentre part 42. Eacharm 41 is made of four sections: a lowermain section 43, a lowercentral section 44, anupper centre section 45 and an uppermain section 46. -
Inner channels main section 43 with a vertically extendingchannel section 47a at the lower side of the lowermain section 43 and a horizontally extendingchannel section 47b, extending to a lateral side of the lowermain section 43. Three of thechannel sections 47b extend towards the adjacent lowercentral section 44. The upper one ofchannels sections 47b has its upper longitudinal half formed as a pipeline in a rectangular cut-out 48 in the lowermain section 43. -
Inner channels central section 44, havinghorizontal channel sections 49a connected at one end to thechannel sections 47b in the lowermain section 43, and tovertical channel sections 49b at their other end. The lowercentral section 44 is mirrored by the uppercentral section 45, which embedsinner channels vertical sections 50a in line with the verticalinner channels sections 49b in lowercentral section 44.Horizontal channels sections 50b lead from thevertical channel sections 50a to the side of the uppercentral section 45 opposite thecentre 22. - The upper
main section 46 is made of three horizontalparallel pipe lines 51 operatively connected to thehorizontal channel sections 50b in uppercentral section 45. The pipe lines 51 lead to anextension block 52 with threeinner channels 53 connected to the pipe lines 51. - The outer ends of inner channels in
arm parts pipe lines 51 of uppermain section 46 are surrounded bycircular rims 54. The arm parts are welded together at thesecircular rims 54 to form leaktight joints. -
Figure 4 shows aheat exchange device 60 similar to the heat exchange device ofFigure 1A and1B . The same reference numbers are used for parts that are the same in both embodiments. The heat exchange device inFigure 4 comprises twobundles support cross 63 is used which is thicker than thesupport cross 20 inFigure 1A .
Claims (8)
- A heat exchange device (1) comprising:- a channel wall (3) defining a flow channel;- one or more heat exchange surfaces (5a - d), each embedding one or more flow paths for a fluid heat exchange medium, and comprising supply and discharge connections (7, 9) for the supply and discharge of the fluid heat exchange medium;- a support structure (20) for supporting the heat exchange surfaces (5a - d) within the flow channel;the heat exchange device being characterized in that the support structure (20) comprises four arms (21) extending under right angles from a central crossing (22) to the channel wall (2) to form a cross;
wherein at least a part of the arms (21) comprises inner channels (23) each being in open connection with one of the flow paths in the heat exchange surfaces (5a - d). - A heat exchange device according to claim 1 wherein the inner channels (23) are parallel and equidistant and evenly distributed over the corresponding arm (21).
- A heat exchange device according to claim 2 wherein the inner channels (23) meander through the arms (21).
- A heat exchange device according to claim 3 wherein the arms (21) are built of two or more arm parts (24, 25, 26), wherein at least a part of the arm parts embed parallel and equidistant inner channel sections making a single turn.
- A heat exchange device according to claim 4 wherein each arm (21) comprises:- a first lower arm part (24) with equidistantly arranged parallel flow paths (27) with a first section (27a) extending upwardly to a first corner (27b) and a second section (27c) extending in the direction of the crossing section (22);- a second lower arm part (25) with equidistantly arranged parallel flow paths (28) having a first section (28a) in line with the second sections (27c) of the respective flow paths (27) in the first lower arm part (24), wherein the first sections (28a) extend to a second corner (28b), and second section (28c) extend upwardly from the second corner (28b);- an upper arm part (26) with equidistantly arranged parallel flow paths (29) having a first vertical section (29a) in line with the second sections (28c) of the respective flow paths (28) in the second lower arm parts (25), wherein the first sections (29a) extending upwardly to a third corner (29b), and wherein second sections (29c) extend from the third corner (29b) away from the crossing section (22).
- A heat exchange device according to any one of the preceding claims wherein the device (1) comprises two or more coaxially nested heat exchange surfaces (5a - b) of a closed geometry.
- A heat exchange device according to any one of the preceding claims wherein one or more of the arms of the support structure is at least partly built of tubular parts, optionally in combination with blocks or plates embedding inner channels operatively connected to the tubular parts.
- A partial combustion reactor for the production of synthetic gas, wherein the reactor comprises at least one section with a heat exchange device (1) according to any one of the preceding claims.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10728682.5A EP2452145B1 (en) | 2009-07-09 | 2010-07-06 | Heat exchanger |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09165009 | 2009-07-09 | ||
PCT/EP2010/059605 WO2011003889A2 (en) | 2009-07-09 | 2010-07-06 | Heat exchanger |
EP10728682.5A EP2452145B1 (en) | 2009-07-09 | 2010-07-06 | Heat exchanger |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2452145A2 EP2452145A2 (en) | 2012-05-16 |
EP2452145B1 true EP2452145B1 (en) | 2019-03-06 |
Family
ID=41280445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10728682.5A Active EP2452145B1 (en) | 2009-07-09 | 2010-07-06 | Heat exchanger |
Country Status (8)
Country | Link |
---|---|
US (1) | US20120125567A1 (en) |
EP (1) | EP2452145B1 (en) |
JP (1) | JP2012533042A (en) |
KR (1) | KR20120046236A (en) |
CN (1) | CN102472591B (en) |
AU (1) | AU2010270297B2 (en) |
WO (1) | WO2011003889A2 (en) |
ZA (1) | ZA201108879B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9267744B2 (en) * | 2010-08-30 | 2016-02-23 | Shell Oil Company | Gasification reactor with a heat exchange unit provided with one or more fouling protection devices |
CN104697366A (en) * | 2013-12-09 | 2015-06-10 | 夏泽文 | Surface counterflow heat exchanger |
JP6585631B2 (en) * | 2014-05-13 | 2019-10-02 | エア プロダクツ アンド ケミカルズ インコーポレイテッドAir Products And Chemicals Incorporated | Heat exchange apparatus for cooling synthesis gas and method of assembling the same |
Family Cites Families (16)
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ES339041A1 (en) * | 1966-05-03 | 1968-04-16 | Schmidt Sche Heiisdampf G M B | Heat exchanger especially for the cooling of hot gases |
CA1040025A (en) * | 1968-01-24 | 1978-10-10 | Raytheon Company | Heat transfer structure |
JPS5234780B2 (en) * | 1974-05-13 | 1977-09-05 | ||
FR2363772A1 (en) * | 1976-09-03 | 1978-03-31 | Commissariat Energie Atomique | HEAT EXCHANGER, IN PARTICULAR LIQUID SODIUM HEATED STEAM GENERATOR |
JPS5762391A (en) * | 1980-10-01 | 1982-04-15 | Toyo Eng Corp | Reaction heat recovery process |
FR2518707A1 (en) * | 1981-12-18 | 1983-06-24 | Novatome | DEVICE FOR PRODUCING STEAM BY EXCHANGING HEAT BETWEEN A LIQUID-COOLED METAL AND FOOD WATER |
FR2524609A1 (en) * | 1982-03-31 | 1983-10-07 | Novatome | EMERGENCY SHUT-OFF DEVICE IN THE EVENT OF LEAKAGE OF A TUBE OF A STEAM GENERATOR |
DE4026096A1 (en) * | 1990-08-17 | 1992-04-16 | Zimmer Ag | Gas-current heat-exchanger - comprises stack of panels containing tubes in identical meander pattern |
DE4324586C1 (en) * | 1993-07-22 | 1994-11-17 | Steinmueller Gmbh L & C | Device for cooling a film-forming gas |
JP2588082Y2 (en) * | 1993-08-09 | 1999-01-06 | 瀬尾高圧工業株式会社 | Heat transfer tubes in heat exchangers |
EP0807047B1 (en) * | 1995-02-06 | 1999-04-14 | Liebenberg, Neil | A trolley and a wheel assembly for such a trolley |
FR2761147B1 (en) * | 1997-03-24 | 1999-05-14 | Gec Alsthom Stein Ind | REDUCED HEAT EXCHANGER |
GB2409825B (en) * | 2004-01-08 | 2007-06-13 | Statoil Asa | Heat exchange system for a slurry bubble column reactor |
CN100483059C (en) * | 2005-05-16 | 2009-04-29 | 夏泽文 | Novel interval-channel counter-flow heat-exchanger |
US8684070B2 (en) * | 2006-08-15 | 2014-04-01 | Babcock & Wilcox Power Generation Group, Inc. | Compact radial platen arrangement for radiant syngas cooler |
CN201170703Y (en) * | 2007-12-19 | 2008-12-24 | 中国蓝星(集团)总公司 | Supporting device for heat exchange tube bundle |
-
2010
- 2010-07-06 EP EP10728682.5A patent/EP2452145B1/en active Active
- 2010-07-06 WO PCT/EP2010/059605 patent/WO2011003889A2/en active Application Filing
- 2010-07-06 US US13/382,311 patent/US20120125567A1/en not_active Abandoned
- 2010-07-06 JP JP2012518959A patent/JP2012533042A/en active Pending
- 2010-07-06 CN CN201080030683.5A patent/CN102472591B/en active Active
- 2010-07-06 KR KR1020127003234A patent/KR20120046236A/en active Search and Examination
- 2010-07-06 AU AU2010270297A patent/AU2010270297B2/en active Active
-
2011
- 2011-12-02 ZA ZA2011/08879A patent/ZA201108879B/en unknown
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
US20120125567A1 (en) | 2012-05-24 |
AU2010270297A1 (en) | 2012-01-19 |
KR20120046236A (en) | 2012-05-09 |
JP2012533042A (en) | 2012-12-20 |
EP2452145A2 (en) | 2012-05-16 |
CN102472591A (en) | 2012-05-23 |
WO2011003889A2 (en) | 2011-01-13 |
WO2011003889A3 (en) | 2011-03-10 |
AU2010270297B2 (en) | 2013-12-05 |
CN102472591B (en) | 2014-07-23 |
ZA201108879B (en) | 2012-09-26 |
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