WO2022268360A1 - Regelbare eindüsung zur realisierung unterschiedlicher lokaler kältemittelverteilung - Google Patents
Regelbare eindüsung zur realisierung unterschiedlicher lokaler kältemittelverteilung Download PDFInfo
- Publication number
- WO2022268360A1 WO2022268360A1 PCT/EP2022/025277 EP2022025277W WO2022268360A1 WO 2022268360 A1 WO2022268360 A1 WO 2022268360A1 EP 2022025277 W EP2022025277 W EP 2022025277W WO 2022268360 A1 WO2022268360 A1 WO 2022268360A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- refrigerant
- tube
- heat exchanger
- line
- space
- Prior art date
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 129
- 238000002347 injection Methods 0.000 title claims description 6
- 239000007924 injection Substances 0.000 title claims description 6
- 238000000034 method Methods 0.000 claims abstract description 29
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 32
- 239000003345 natural gas Substances 0.000 claims description 15
- 230000001419 dependent effect Effects 0.000 claims 1
- 239000002826 coolant Substances 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 125000004817 pentamethylene group Chemical class [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- F28D7/02—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 helically coiled
- F28D7/024—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 helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
- F25J5/002—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2280/00—Control of the process or apparatus
- F25J2280/02—Control in general, load changes, different modes ("runs"), measurements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/32—Details on header or distribution passages of heat exchangers, e.g. of reboiler-condenser or plate heat exchangers
-
- 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
- F28D2021/0033—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cryogenic applications
Definitions
- the invention relates to a wound heat exchanger.
- Such wound heat exchangers are often used as the heart of natural gas liquefaction plants.
- a refrigerant is applied to the shell side and evaporates by means of a falling film. This evaporation can lead to a so-called maldistribution over the tube bundle of the heat exchanger, so that some tubes of the tube bundle receive too much refrigerant and other tubes too little. This maldistribution effect can change locally over the bundle height and thus has a different negative influence depending on the height.
- the object of the present invention is therefore to provide a wound heat exchanger and a method which counteracts such performance losses.
- a heat exchanger for indirect heat transfer between a process medium and at least one first refrigerant is disclosed, with:
- the first tubes each have an end which is formed by at least one nozzle, via which the first refrigerant, e.g. as a two-phase stream (liquid/gaseous) can be introduced or injected into the jacket space, the ends along the Longitudinal axis of the shell are arranged at different heights between the lower end and the upper end of the tube bundle and in particular the first tubes belong to different tube layers of the tube bundle.
- Each first tube is preferably arranged in a different tube layer of the tube bundle.
- the jacket space has a lower section and an upper section in relation to the longitudinal axis (when the heat exchanger is arranged as intended, in which the longitudinal axis extends along the vertical).
- the heat exchanger has a first line routed into the lower section of the shell space, which is connected to the first tubes via a valve in each case, so that a volume flow introduced via the first line into the respective first tube of the first refrigerant can be adjusted by means of the respective valve.
- said first refrigerant can be injected into the shell at different heights in relation to the longitudinal axis or the vertical and in the radial direction of the tube bundle in different tube layers in a targeted manner in order to counteract a maldistribution of the first refrigerant in the shell.
- the tube bundle has at least one second tube, which is connected to the first line, so that the first refrigerant can be introduced via the first line into the at least one second tube of the tube bundle and via this in particular from the lower section can be guided into the upper section of the jacket space, wherein the at least one second tube is flow-connected to a second line led out of the upper section of the jacket space, so that the first refrigerant can be drawn off from the heat exchanger via the second line.
- the heat exchanger has a first line leading out of the upper section of the shell space of the heat exchanger, which is connected to the first tubes via a valve, so that a flow via the first line into the respective first tube of the tube bundle introduced volume flow of the first refrigerant is adjustable by means of the respective valve.
- the tube bundle has at least one second tube, which is connected to the first line, so that the first refrigerant can be introduced into the first line via the at least one second tube, with the first line downstream of the said valves is connected to a second line.
- the alternative embodiment therefore differs from the embodiment presented above in particular in that the first refrigerant is fed into the first tubes from the upper section of the shell space, whereas in the previously described exemplary embodiment it is fed into the first tubes of the tube bundle from the lower section of the shell space is initiated.
- the tube bundle has further first tubes, each having an end formed by at least one nozzle, via which the first refrigerant, for example as a two-phase stream (liquid / gaseous), in the shell space can be introduced or injected, with the ends of the further first tubes along the longitudinal axis of the shell also being arranged at different heights between the lower end and the upper end of the tube bundle (and with the further first tubes in particular belonging to different tube layers), and wherein the further first tubes are each connected via a valve to the second line, which is led out of the upper section of the jacket space (see above), so that a volume flow of the first refrigerant introduced via the second line into the respective further first tube by means of the respective valve is adjustable.
- the first refrigerant for example as a two-phase stream (liquid / gaseous)
- the further first tubes are each connected via a valve to the second line, which is led out of the upper section of the jacket space (see above), so that a volume flow of the first refrigerant introduced via the second line
- the present exemplary embodiment thus differs from the two alternative embodiments presented above in that the introduction of the first refrigerant into the first tubes of the tube bundle or into the further first tubes of the tube bundle from the lower section of the shell space and from the upper section of the shell space he follows.
- the first refrigerant can be a Joule-Thomson refrigerant (JT refrigerant for short), which becomes two-phase or cools down by being injected into the jacket space.
- JT refrigerant Joule-Thomson refrigerant
- the first refrigerant is a different (non-JT) refrigerant that is injected from the warm side.
- one embodiment preferably provides for the second line to be routed back into the upper section of the jacket space via a valve, so that the first refrigerant can flow into the upper section of the shell space can be introduced and injected there into the upper section of the shell space.
- the tube bundle has at least one third tube for receiving a second refrigerant, the second refrigerant being guidable from the lower section of the jacket space into the upper section of the jacket space via the at least one third tube.
- the second refrigerant is not a JT refrigerant, it is then preferentially withdrawn from the upper portion of the shell space (as is the process medium, see below).
- the first refrigerant routed in the first or in the further first tubes is not a JT refrigerant
- the second refrigerant can be designed as a JT refrigerant, for example.
- the tube bundle has at least one third tube for receiving a second refrigerant, the second refrigerant being able to be guided from the lower section of the jacket space into the upper section of the jacket space via the at least one third tube , and wherein the at least one third tube is flow-connected to a further line leading out of the upper section of the jacket space, so that the first refrigerant can be drawn off from the heat exchanger via the further line, and wherein the further line is connected via a valve to the upper section of the Shell space is returned, so that the second refrigerant can be introduced into the upper portion of the shell space and injected there into the upper portion of the shell space.
- the tube bundle has at least a fourth tube for receiving the process medium to be cooled, in particular natural gas, with the process medium being transported from the lower section of the shell space into the upper section of the shell space via the at least one fourth tube is manageable.
- the second tubes, the third tubes and the fourth tubes are likewise preferably wound in a helical shape around the core tube of the heat exchanger.
- the core tube serves in particular to transfer the load of the tubes of the tube bundle.
- the tubes are wound onto the horizontally arranged core tube.
- Another aspect of the present invention relates to a method for indirect heat transfer between a process medium, here preferably natural gas, and at least one first refrigerant using a heat exchanger according to the invention, the first refrigerant via the nozzles of the first tubes
- a distribution of the first refrigerant in the jacket space is influenced by setting the valves assigned to the first tubes both in the vertical direction (i.e. along the longitudinal axis) and in the radial direction of the tube bundle.
- a distribution of the first refrigerant in the jacket space is influenced by setting the valves assigned to the further first tubes both in the vertical direction and in the radial direction of the tube bundle.
- the injection of the first refrigerant via the second line into the upper section of the shell space is influenced by setting the second valve.
- Show it: 1 shows an embodiment of a heat exchanger according to the invention, in which a first refrigerant is introduced into the jacket space from below and is introduced there via the ends of first tubes of the tube bundle at different heights and in different radial positions into the jacket space, with the first coolant also being fed into a is injected into the upper section of the jacket space.
- FIG. 2 shows an embodiment of a heat exchanger according to the invention, with a first refrigerant being introduced into the jacket space from below and being introduced there via the ends of first tubes of the tube bundle at different heights and in different radial positions into the jacket space, with a second coolant also being fed into a upper section of the shell space is injected;
- FIG. 3 shows an embodiment of a heat exchanger according to the invention, in which a first refrigerant is introduced into the jacket space from above and is introduced there via the ends of first tubes of the tube bundle at different heights and in different radial positions into the jacket space, with the first coolant also being fed into a upper section of the shell space is injected;
- FIG. 4 shows an embodiment of a heat exchanger according to the invention, with a first refrigerant being introduced into the shell space both from below and from above and there via the ends of first tubes or further first tubes of the tube bundle at different heights and in different radial positions into the shell space is introduced, wherein further the first refrigerant is injected into an upper portion of the shell space; and
- FIG. 5 shows a partially sectioned view of a coiled heat exchanger with a tube bundle that has a plurality of tubes wound onto a core tube, with one end of a first tube of the tube bundle being shown as an example, via which the first refrigerant is injected into the shell space.
- Figure 1 shows an embodiment of a coiled heat exchanger 1 according to the invention. If such systems are used to liquefy a process medium P, in particular natural gas, the natural gas to be cooled and liquefied is in the interior of the tube, ie in tubes 33 of a tube bundle 3 of the heat exchanger 1 in indirect heat exchange with a first refrigerant M, which flows through a jacket space 6 of the heat exchanger 1.
- a process medium P in particular natural gas
- such heat exchangers 1 are aligned vertically, with the natural gas M to be cooled and liquefied flowing from bottom to top inside the tubes 33 and the first refrigerant M being distributed as evenly as possible from above in the jacket space 6 . Due to the indirect heat exchange, the temperature of the natural gas P thus decreases from bottom to top over the height of the heat exchanger, while the temperature of the first refrigerant M in the jacket space 6 increases from top to bottom to the same extent. Irregularities in the distribution of the first refrigerant M to the individual tubes 33 or in the distribution of the first refrigerant M in the shell space 6 can, however, form undesired local differences in the temperature profile between individual tubes 33 or corresponding tube layers.
- a continuously controllable injection onto different bundle areas is now realized, for example, according to the embodiment of a heat exchanger according to the invention shown in FIG Layers are cut off so that these first tubes 31 each have an open end 31a functioning as a nozzle. These first tubes 31 are then connected to at least one first line 41 and connected to the main flow of the first refrigerant M by means of valves 51 . In addition to the local application of quantity of the first refrigerant M via the ends 31a, the Joule-Thomson effect can also be used locally directly during the injection.
- FIG. 1 thus represents in particular an embodiment of the invention in which the first refrigerant M is used as a Joule Thomson (JT) refrigerant which is supplied to the first tubes 31 from the warm end (from below).
- JT Joule Thomson
- the first refrigerant can be a mixed refrigerant, for example.
- the first refrigerant can have, for example, one or more of the following substances: N2, methane, ethane, butane, propane, pentenes. Furthermore, a third refrigerant can also be routed in the tube bundle (depending on the process application).
- the first line 41 is routed into a lower section 6a of the jacket space 6 and is preferably connected to each first tube 31 of the tube bundle 3 via a respective valve 51, so that a volume flow emerging from the respective end 31a of the first refrigerant M can be regulated or controlled separately.
- This principle is preferably also applied to the other embodiments that are described further below.
- the tube bundle 3 has at least one second tube 32, which is connected to the first line 41, so that the first refrigerant M can flow via the first line 41 into the at least one second tube 32 of the tube bundle 3 can be introduced, wherein the at least one second tube 32 is flow-connected to a second line 42 leading out of an upper section 6b of the shell space 6, so that the first refrigerant M can be drawn off from the heat exchanger 1 via the second line 42, wherein the second line 42 is routed back via a valve 52 into the upper section 6b of the shell space 6, so that the first refrigerant M can be injected into the upper section 6b of the shell space 6 in order to feed the first refrigerant M onto the tube bundle 3 from above.
- the tube bundle 3 according to Figure 1 preferably has at least one third tube 33 for receiving a second refrigerant M', with the second refrigerant M' via the at least one third tube 33 from the lower section 6a of the jacket space 6 to the upper section 6b of the Shell space 6 can be guided and can be removed from the heat exchanger 1 there.
- the second refrigerant M′ can, in particular, exchange heat indirectly with the process medium or natural gas P. That Process medium or natural gas P can be routed via at least a fourth tube 34 of the tube bundle 3 from the lower section 6a of the shell space 6 into the upper section 6b of the shell space 6, from where it can be drawn off from the heat exchanger 1.
- the heat exchanger 1 preferably has a plurality of first, further first, second, third and fourth tubes 31 , 31 ′, 32 , 33 , 34 .
- the tubes 31, 31', 32, 33, 34 of the tube bundle 3 are each preferably wound in a helical shape onto a core tube 300 of the heat exchanger 300, which is shown as an example in FIG.
- This arrangement of the tubes 31, 31', 32, 33, 34 preferably applies to all of the embodiments of the heat exchanger 1 described herein.
- FIG. 2 shows an embodiment of the invention in which the first refrigerant M is not the JT flow of the heat exchanger.
- the first refrigerant M can be a refrigerant that is only used for cooling in the liquifier or subcooler of the system.
- the first is introduced
- Refrigerant M which, in contrast to FIG. 1, is not a JT refrigerant, from the warm side of the heat exchanger 1.
- the first refrigerant M is guided via a first line 41 into the lower section 6a of the jacket space 6 and is preferably connected to each first tube 31 of the tube bundle 3 via a respective valve 51, so that a discharge from the respective end 31a emerging volume flow of the first refrigerant M in turn is separately regulated or controllable.
- the tube bundle 3 also has at least one second tube 32, which is connected to the first line 41, so that the first refrigerant M can be introduced via the first line 41 into the at least one second tube 32 of the tube bundle 3, with the At least one second tube 32 is flow-connected to a second line 42 leading out of the upper section 6b of the jacket space 6, so that the first refrigerant M can be drawn off from the heat exchanger 1 via the second line 42.
- the tube bundle 3 according to Figure 2 preferably has at least one third tube 33 for receiving a second refrigerant M', with the second refrigerant M' via the at least one third tube 33 from the lower section 6a of the jacket space 6 to the upper section 6b of the Shell space 6 can be guided and can be removed from the heat exchanger 1 there.
- the second refrigerant M′ can, in particular, exchange heat indirectly with the process medium or natural gas P.
- the process medium or natural gas P can be conducted via at least a fourth tube 34 of the tube bundle 3 from the lower section 6a of the shell space 6 into the upper section 6b of the shell space 6, from where it can be drawn off from the heat exchanger 1.
- the at least one third pipe 33 for the second refrigerant M' is flow-connected to a further line 43 leading out of the upper section 6b of the jacket space 6, so that the second refrigerant M' can flow through the further line 43 can be removed from the heat exchanger 1, the further line 43 being fed back into the upper section 6b of the shell space 6 via a valve 53, so that the second refrigerant M' can be injected into the upper section 6b of the shell space 6.
- FIG. 3 shows a further embodiment of the invention, in which, in contrast to the embodiments according to FIGS. 1 and 2, the first refrigerant M is fed into the relevant bundle area between the upper end 3d and the lower end 3c from above, i.e., from the cold side of the heat exchanger 1, with FIG. 3 showing in particular the situation in which the first refrigerant M is the cold, high-pressure refrigerant (from the tube side).
- the refrigerant can also be distributed via the low-pressure side (shell side).
- the tube bundle 3 of the heat exchanger 1 provision is made in particular for the tube bundle 3 of the heat exchanger 1 to have at least one second tube 32, which is fed with the first refrigerant M from the lower end of the heat exchanger 1, with the at least one second tube 32 in the jacket space 6 entering the is guided in the upper section 6a and is connected there to a first line 41 leading out of the upper section 6a of the jacket space 6, which in turn is connected to the first tubes 31 via a valve 51, so that a via the first line 41 into the respective
- the volume flow of the first refrigerant M introduced in the first tube 31 can be adjusted by means of the respective valve 51 and can be guided in the respective first tube 31 from top to bottom to the respective end 31a or nozzle 31a and can be introduced into the jacket space M there.
- the first line 41 Downstream of the valves 52, the first line 41 is also connected to a second line 42 or merges into it, with this second line 42 being fed back into the upper section 6b of the shell space 6 via a valve 52 according to Fig. 3, so that the first refrigerant M continues in the upper section 6b of the jacket space 6 can be injected and it can be given to the tube bundle 3 from above.
- the tube bundle 3 also has at least one third tube 33 for receiving a second refrigerant M', with the second refrigerant M' passing through the at least one third tube 33 from the lower section 6a of the jacket space 6 into the upper section 6b of the jacket space 6 can be guided.
- the second refrigerant M' can indirectly exchange heat with the process medium P or natural gas P, which can be guided in at least a fourth tube 34 of the tube bundle from the lower section 6a of the jacket space 6 into the upper section 6b of the jacket space 6 and from there out of the Heat exchanger 1 is removable.
- the process medium or natural gas P is guided in cocurrent from bottom to top in the jacket space 6 of the heat transfer in the respective tube 33, 34 of the tube bundle 3.
- first tubes 31 of the tube bundle 3 which also each have an end 31'a, which is formed by at least one nozzle, via which the first refrigerant M in the Jacket space 6 can be introduced, with the ends 31 'a of the other first tubes 31' along the longitudinal axis z of the jacket 5 also being arranged at different heights between the lower end 3c and the upper end 3d of the tube bundle 3 and preferably also localized in different tube layers are.
- the other first tubes 31' are also each connected to the second line 42 via a valve 54, so that a volume flow of the first refrigerant M introduced via the second line 42 into the respective further first tube 31' can be adjusted by means of the respective valve 54 .
- the first refrigerant M is routed from top to bottom in the shell space 6. Downstream of the valves 54, the first refrigerant M, as shown in FIG. The second refrigerant M as well as that
- Process medium or natural gas P can be guided in the third and fourth tubes 33, 34 of the tube bundle 3 according to FIG.
- the invention can be used, for example, in a wound heat exchanger 1 of the type shown in FIG.
- the Heat exchanger 1 has a jacket 5 which extends along the longitudinal axis z (vertical during operation) and surrounds a jacket space 6 of the heat exchanger 1 which is used to hold the first refrigerant M, with the tube bundle 3 being arranged in the jacket space 6 .
- the tube bundle 3 has a plurality of tubes 31, 32, 33, 34 which are arranged in tube layers which are arranged one above the other in the radial direction R, starting from an innermost tube layer 3a and ending with an outermost tube layer 3b.
- the tubes 31, 32, 33, 34 are wound around a core tube 300 which extends along the longitudinal axis z and is arranged in the jacket space 6, with the embodiment according to FIG. 3 being shown as an example in FIG Guide refrigerant M from above and inject it into the jacket space.
- the corresponding valves and lines of the heat exchanger 1 outside the shell 5 are not shown in FIG.
- the tubes 31, 32, 33, 34 are wound onto an outer side of the core tube 300 with webs 10 interposed.
- the core tube 300 bears the load of the tube bundle 3 downwards.
- sockets which are in flow communication with the shell space 6 and serve to introduce or draw off the first medium M can be provided on the shell 5 .
- the first medium M can be guided in the jacket space 6 from top to bottom or from bottom to top.
- the tube bundle 3 can be surrounded by a shirt 7 .
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- 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
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CN202280040302.4A CN117425805A (zh) | 2021-06-23 | 2022-06-15 | 用于实现不同的局部制冷剂分布的可调喷射 |
US18/571,543 US20240288223A1 (en) | 2021-06-23 | 2022-06-15 | Controllable injection for implementing different local refrigerant distribution |
EP22734115.3A EP4359718A1 (de) | 2021-06-23 | 2022-06-15 | Regelbare eindüsung zur realisierung unterschiedlicher lokaler kältemittelverteilung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102021003245.4 | 2021-06-23 | ||
DE102021003245 | 2021-06-23 |
Publications (1)
Publication Number | Publication Date |
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WO2022268360A1 true WO2022268360A1 (de) | 2022-12-29 |
Family
ID=82258477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2022/025277 WO2022268360A1 (de) | 2021-06-23 | 2022-06-15 | Regelbare eindüsung zur realisierung unterschiedlicher lokaler kältemittelverteilung |
Country Status (4)
Country | Link |
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US (1) | US20240288223A1 (de) |
EP (1) | EP4359718A1 (de) |
CN (1) | CN117425805A (de) |
WO (1) | WO2022268360A1 (de) |
Citations (7)
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US8051901B2 (en) * | 2006-07-20 | 2011-11-08 | Linde Aktiengesellschaft | Mass transfer or heat-exchange column with mass transfer or heat-exchange areas, such as tube bundles, that are arranged above one another |
EP2857782A1 (de) * | 2013-10-04 | 2015-04-08 | Shell International Research Maatschappij B.V. | Wärmetauscher mit gewickelter Spule und Verfahren zur Kühlung eines Prozessstroms |
US9726434B2 (en) * | 2011-04-14 | 2017-08-08 | Linde Aktiengesellschaft | Heat exchanger with additional liquid control in shell space |
WO2017167458A1 (de) * | 2016-03-30 | 2017-10-05 | Linde Aktiengesellschaft | Gewickelter wärmeübertrager |
US20180245844A1 (en) * | 2017-02-24 | 2018-08-30 | Linde Aktiengesellschaft | Heat exchanger and method for distributing a liquid phase in a heat exchanger |
EP3428563A1 (de) * | 2017-07-10 | 2019-01-16 | Linde Aktiengesellschaft | Entnahme/zuspeisung von gas zur beeinflussung von radialer flüssigkeitsmigration |
US20190063843A1 (en) * | 2017-08-22 | 2019-02-28 | Linde Aktiengesellschaft | Internals in a helically coiled heat exchanger for suppressing gas vortices |
-
2022
- 2022-06-15 WO PCT/EP2022/025277 patent/WO2022268360A1/de active Application Filing
- 2022-06-15 CN CN202280040302.4A patent/CN117425805A/zh active Pending
- 2022-06-15 US US18/571,543 patent/US20240288223A1/en active Pending
- 2022-06-15 EP EP22734115.3A patent/EP4359718A1/de active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US8051901B2 (en) * | 2006-07-20 | 2011-11-08 | Linde Aktiengesellschaft | Mass transfer or heat-exchange column with mass transfer or heat-exchange areas, such as tube bundles, that are arranged above one another |
US9726434B2 (en) * | 2011-04-14 | 2017-08-08 | Linde Aktiengesellschaft | Heat exchanger with additional liquid control in shell space |
EP2857782A1 (de) * | 2013-10-04 | 2015-04-08 | Shell International Research Maatschappij B.V. | Wärmetauscher mit gewickelter Spule und Verfahren zur Kühlung eines Prozessstroms |
WO2017167458A1 (de) * | 2016-03-30 | 2017-10-05 | Linde Aktiengesellschaft | Gewickelter wärmeübertrager |
US20180245844A1 (en) * | 2017-02-24 | 2018-08-30 | Linde Aktiengesellschaft | Heat exchanger and method for distributing a liquid phase in a heat exchanger |
EP3428563A1 (de) * | 2017-07-10 | 2019-01-16 | Linde Aktiengesellschaft | Entnahme/zuspeisung von gas zur beeinflussung von radialer flüssigkeitsmigration |
US20190063843A1 (en) * | 2017-08-22 | 2019-02-28 | Linde Aktiengesellschaft | Internals in a helically coiled heat exchanger for suppressing gas vortices |
Also Published As
Publication number | Publication date |
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CN117425805A (zh) | 2024-01-19 |
US20240288223A1 (en) | 2024-08-29 |
EP4359718A1 (de) | 2024-05-01 |
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