US20090301699A1 - Vertical combined feed/effluent heat exchanger with variable baffle angle - Google Patents
Vertical combined feed/effluent heat exchanger with variable baffle angle Download PDFInfo
- Publication number
- US20090301699A1 US20090301699A1 US12/133,917 US13391708A US2009301699A1 US 20090301699 A1 US20090301699 A1 US 20090301699A1 US 13391708 A US13391708 A US 13391708A US 2009301699 A1 US2009301699 A1 US 2009301699A1
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- 239000012071 phase Substances 0.000 description 18
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- 238000013461 design Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 230000005514 two-phase flow Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000012808 vapor phase Substances 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
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- 239000007791 liquid phase Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000003842 industrial chemical process Methods 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000005649 metathesis reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000000638 solvent extraction 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
- F28D7/16—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
- F28D7/1607—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 particular pattern of flow of the heat exchange media, e.g. change of flow direction
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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
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
-
- 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
- F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
- F28D2021/0064—Vaporizers, e.g. evaporators
-
- 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
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
- F28F2009/228—Oblique partitions
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Helmets And Other Head Coverings (AREA)
Abstract
A shell and tube heat exchanger, such as a vertical combined feed/effluent heat exchanger (VCFE), including: a shell having a fluid inlet and a fluid outlet; a plurality of baffles mounted in the shell to guide the fluid into a helical flow pattern through the shell; wherein a helix angle α of a baffle proximate the inlet is different than a helix angle β of a baffle proximate the outlet.
Description
- Embodiments disclosed herein relate generally to a heat exchanger. More specifically, embodiments disclosed herein relate to a heat exchanger, such as a shell and tube heat exchanger, configured to efficiently process two-phase flow.
- Numerous configurations for heat exchangers are known and used for a variety of applications. One of the widely used configurations, a shell and tube heat exchanger, as illustrated in
FIG. 1 , includes acylindrical shell 10 housing a bundle of parallel pipes 12, which extend between twoend plates 14 so that afirst fluid 16 can pass through the pipes 12. Meanwhile, a second fluid 18 flows in and through the space between the two end plates so as to come into contact with the pipes. To provide an improved heat exchange between the two fluids, the flow path of the second fluid 18 is defined byintermediate baffles 20 forming respective passages, which are arranged so that the second fluid flow changes its direction in passing from one passage to the next. Thebaffles 20, configured as either partial circular segments as shown (partial segmental baffles), or as annular rings and discs, are installed perpendicular to alongitudinal axis 22 of theshell 10 to provide azigzag flow 24 of the second fluid 18. - In this arrangement, the second fluid has to sharply change the direction of its flow several times along the length of the shell. This causes a reduction in the dynamic pressure of the second fluid and non-uniform flow velocity thereof, which, in combination, adversely affect the performance of the heat exchanger. For example, a perpendicular position of the baffles relative to the longitudinal axis of the shell results in a relatively inefficient heat transfer rate/pressure drop ratio. Additionally, such baffle arrangements produce flow bypass through baffle-to-shell and pipe-to-baffle clearances, resulting in flow maldistribution, eddies, back-flow, and higher rates of fouling, among other undesired consequences.
- Pressure drop, flow distribution, and heat transfer efficiencies are important variables, especially in the many industrial chemical processes where a vapor phase reaction is desired between liquid phase feed and product streams. Example processes may include naphtha reforming, naphtha hydrotreating, diesel and kerosene hydrotreating, light hydrocarbon isomerization and metathesis, and many other industrially important processes. Such processes will typically include feed/effluent heat exchange equipment, where the heat required to vaporize the reactor feed stream is recovered by condensation or partial condensation of the reactor effluent. Such heat transfer equipment has historically been arranged as conventional horizontal shell and tube heat exchangers.
- Increasing unit design capacities (economy of scale) requires large volumetric throughput with a resultant impact on the number of shells required to transfer the heat at the limited temperature differentials. However, due to the flow hydraulics issues, i.e., two phase inlet flow, varying composition and molecular weight of the vapor and liquid phases, and variable volumetric flow and pressure drop resulting from phase change, the arrangement of conventional exchanger shells in several parallel and series arrangements is problematic. Symmetrical piping is an unreliable means to effect partitioning of two phase flow. As the vapor molecular weight can be much lower than the associated liquid, especially in hydrotreating services where the vapor is largely composed of hydrogen, the maldistribution of vapor with the liquid entering an exchanger can have a marked impact on the associated boiling curve and, consequently, the mean temperature difference (MTD) of the boiling operation.
- The concept of vertical combined feed/effluent heat exchanger (VCFE) was developed to overcome these drawbacks by integrating large surfaces into a single vertical shell. Such units have been deployed commercially in different configurations, including: tubeside boiling/shellside condensing in single segmental baffle design; tubeside condensing/shellside boiling in single segmental baffle design; tubeside boiling/shellside condensing in helical baffle design; tubeside condensing/shellside boiling in helical baffle design. Helically baffled exchangers are described, for example, in U.S. Pat. Nos. 5,832,991, 6,513,583, and 6,827,138.
- On a theoretical basis, shellside boiling is favored to reduce the required surface, as the shellside boiling coefficient is enhanced by the relatively larger volume of the shellside due to mass transport effects. However, fouling considerations must also be addressed, as the tubeside will normally be easier to clean.
- A drawback of the shellside boiling arrangement is considered at partial load or turndown operation, where the shellside velocities may not be sufficient to prevent phase separation and backflow of the liquid fraction back down to the inlet. Such buildup of heavy liquid fraction at high residence time can result in fouling.
- The main drawback of any tubeside boiling arrangement is that the vapor and liquid fractions must be evenly distributed in each of a multiplicity of tube inlets, in order to maintain the expected boiling characteristics in each tube, and an inexpensive and low pressure drop method to achieve this distribution has not been found.
- Accordingly, there exists a need for heat exchanger and baffle designs for effectively processing two-phase inlet flow in vertical units.
- In one aspect, embodiments disclosed herein relate to a heat exchanger including: a shell having a fluid inlet and a fluid outlet; a plurality of baffles mounted in the shell to guide the fluid into a helical flow pattern through the shell; wherein a helix angle α of a baffle proximate the inlet is different than a helix angle β of a baffle proximate the outlet.
- In another aspect, embodiments disclosed herein relate to a shell and tube heat exchanger including: a tubeside inlet manifold having a first fluid inlet therein; a tubeside outlet manifold having a first fluid outlet therein; a plurality of tubes extending between the manifolds and in fluid communication therewith; a shell extending between the manifolds and encompassing said tubes, the shell having a second fluid inlet and a second fluid outlet therein; a plurality of baffles mounted in the shell to guide the second fluid into a helical flow pattern through the shell; wherein a helix angle α of a baffle proximate the second fluid inlet is different than a helix angle β of a baffle proximate the second fluid outlet.
- In another aspect, embodiments disclosed herein relate to a process for exchanging heat with a mixed phase fluid, the process including: feeding a mixed phase fluid comprising a vapor and at least one of an entrained liquid and an entrained solid to a heat exchanger, the heat exchanger including: a shell having a fluid inlet, and a fluid outlet; a plurality of baffles mounted in the shell to guide the fluid into a helical flow pattern through the shell; converting the mixed phase fluid to essentially all vapor; and indirectly exchanging heat between the mixed phase fluid and a heat exchange medium; wherein a helix angle α of a baffle proximate the inlet maintains a velocity of the mixed phase fluid greater than a terminal velocity of the entrained liquid or solid; and wherein a helix angle β of a baffle proximate the outlet is greater than helix angle α of the baffle proximate the inlet.
- Other aspects and advantages will be apparent from the following description and the appended claims.
-
FIG. 1 is a diagrammatic view of flow distribution in a conventional shell and tube heat exchanger. -
FIG. 2 is a schematic drawing of a vertical combined feed/effluent heat exchanger with variable heat baffle angle according to embodiments disclosed herein. - In one aspect, embodiments herein relate generally to a heat exchanger. More specifically, embodiments disclosed herein relate to a heat exchanger, such as a shell and tube heat exchanger, configured to efficiently process two-phase flow. Even more specifically, embodiments disclosed herein relate to a heat exchanger having baffles configured to direct a shell side fluid flow in a helical flow pattern, where a helix angle of a baffle proximate the inlet is different than a helix angle of a baffle proximate the outlet.
- Heat exchangers having baffles with a varied helix angle according to embodiments disclosed herein have been found to be useful for shellside fluids undergoing a phase change, such as evaporation, condensation, combustion, and the like. For example, for a two-phase inlet flow, such as a vaporizing liquid-vapor mixture, helix angles proximate to the inlet may be provided to maintain sufficient fluid velocity to avoid phase separation of the vapor and the liquid. The helix angle of baffles proximate the shellside fluid inlet may be close to a position perpendicular to the tubes, thus causing the incoming dense fluid to swirl at a high velocity. As the liquid vaporizes due to heat transfer within the exchanger, the helix angle of the baffles may be further from perpendicular, such as for baffles closer to the shellside outlet, providing for heat exchange at lower velocities for the less dense vapor and a relatively low pressure drop through the heat exchanger.
- As the phase separation (vapor-liquid, vapor-solid, etc.) is a function of the relative densities, particle and/or droplet size, and the vapor phase velocity, heat exchangers having baffles with a varied helix angle according to embodiments disclosed herein are not subject to shellside phase separation at the same throughput as would occur for a heat exchanger having a constant baffle angle. Accordingly, heat exchangers having baffles with a varied helix angle according to embodiments disclosed herein may be used at significantly reduced throughput levels, thus avoiding the drawbacks typical associated with vertical heat exchangers operating at partial load or turndown operation.
- The helix angle used for the baffles proximate the shellside inlet and outlet may depend on the type of operation. For example, for a fluid mixture including a vapor and a vaporizing liquid or combusting solid, the helix angle of baffles proximate the inlet may be greater than the helix angle of baffles proximate the outlet. In this manner, the velocity of the two-phase mixture may be maintained greater than a transport velocity of the entrained solid or liquid, thus avoiding phase separation. As the fluid vaporizes or the solid combusts, a lower helix angle may be used. In other embodiments, the helix angle may gradually decrease along the longitudinal length of the shell. As another example, for an inlet feed including a vapor to be condensed within the heat exchanger, the helix angle of baffles proximate the shellside inlet may be less than the helix angle of baffles proximate the shellside outlet, thus increasing the velocity of the mixture during the condensing operation.
- Referring now to
FIG. 2 , a schematic drawing of a vertical combined feed/effluent heat exchanger having baffles with varied helix angles according to embodiments disclosed herein is illustrated.Heat exchanger 30 may include atubeside inlet manifold 32 having afluid inlet 34 therein.Tubeside inlet manifold 32 may also have avent 36 disposed therein.Heat exchanger 30 may also include atubeside outlet manifold 38 having afluid outlet 40 therein. A plurality oftubes 42 may extend between thetubeside inlet manifold 32 andoutlet manifold 38, allowing for transport of a fluid from theinlet manifold 32 tooutlet manifold 38 throughtubes 42.FIG. 2 illustrates the use of four tubes, however it is to be understood that any number of tubes may be used. - Shell 44 extends between inlet and
outlet manifolds tubes 42, and includes ashellside fluid inlet 46 and ashellside fluid outlet 48. Located withinshell 44 is a plurality ofbaffles 50.Baffles 50 may include, for example, helical baffles as described in U.S. Pat. Nos. 5,832,991, 6,513,583, and 6,827,138, the entire contents of each which are incorporated herein by reference. Baffles 50 may include tube orifices (not shown) to allowtubes 42 to pass through baffles 50, and to allowbaffles 50 to retaintubes 42 in an aligned and desired location. Baffles 50 may act to guide the shellside fluid into a helical flow pattern through the shell. - Baffles 50 are arranged within
heat exchanger 30 such that baffles 50 proximate theshellside inlet 46 have a different helix angle thanbaffles 50proximate shellside outlet 48. The helix angle of the baffles may be determined, for example, by “unwinding” the helix, forming a two-dimensional representation of the helical pattern. As illustrated inFIG. 2 forbaffle 50 a, the helix angle would then be determined as the arctangent of the shell circumference C divided by the pitch p (longitudinal distance traversed by a baffle arc extending 360°). The pitch is equal to: -
p=C*tan(β); - where β is the helix angle. Therefore, helix angle β is equal to arctan (p/C).
- As illustrated,
heat exchanger 30 is equipped withhelical baffles 50 oriented vertically. Baffles 50proximate shellside inlet 46 may have a helix angle α. Baffles 50proximate shellside outlet 48 may have a helix angle β with respect to longitudinal axis A-A ofshell 44. Thus, for example, for a vaporizing two-phase shellside feed stream entering viashellside inlet 46, thebaffles 50 proximate theinlet 46 are arranged at a low helix angle α; i.e., closer to perpendicular with respect to axis A-A thanbaffles 50proximate shellside outlet 48, having a helix angle β where heat exchange is expected to be gas/gas at a higher shellside volumetric flow, such as due to evaporation, combustion, and/or heating of the shellside fluid. A low helix angle α may thus cause the two-phase inlet flow to swirl in a helical path at a velocity sufficient to avoid phase separation. Because the shellside fluid is gas/gasproximate outlet 48, a helix angle β greater than helix angle α may be used, thus resulting in a lower pressure drop than where angle α is used along the entire length ofshell 44. - In some embodiments, baffles intermediate shellside
fluid inlet 46 andoutlet 48 may have a helix angle γ intermediate that of helix angles α, β. For example, the helix angles ofbaffles 50 may gradually increase or decrease frominlet 46 tooutlet 48, depending on the type of service (e.g., condensing, evaporating, etc.). In other embodiments, the helix angles forbaffles 50 may undergo one or more step changes. - As mentioned above, heat exchangers having baffles with a varied helix angle according to embodiments disclosed herein may be useful where two-phase fluid flow is expected. Lower helix angles where two-phase flow is expected may provide for a higher vapor phase velocity, avoiding shellside phase separation. The helix angles of baffles proximate the inlet and outlet may be a function of the relative densities of the two phases, particle or droplet size of the solids and/or liquids (related to the transport velocity of the particles or droplets), typical feed rates, partial load or turndown feed rates, temperature rise of the shellside fluid and other variables as known to those skilled in the art.
- The vertical combined feed/effluent heat exchangers described herein may use baffles having an approximate helix angle within the range from about 5° to 45°, inclusive. Any combination of baffle angles α, β and γ (if present) which creates an appropriate helix angle may be used in accordance with embodiments disclosed herein.
- For example, in some embodiments, helix angle α may be within the range from about 5° to about 45°; within the range from about 5° to about 35° in other embodiments; and from about 5° to about 25° in yet other embodiments.
- In other embodiments, baffle angle β may be within the range from 15° to about 45°; within the range from about 25° to about 45° in other embodiments; and from about 35° to about 45° in yet other embodiments.
- Heat exchangers according to embodiments disclosed herein may advantageously be used with shellside fluids having two or more phases. Advantageously, heat exchangers according to embodiments disclosed herein may provide for a shellside fluid flow velocity to minimize or avoid phase-separation of fluids passing through the shell, such as by having baffles with a small helix angle where two-phase flow is expected. Additionally, use of larger helix angles where single phase flow is expected may advantageously provide for a lower pressure drop than where a constant helix angle is used throughout the shell. Thus, compared to traditional heat exchangers having baffles with a constant helix angle, heat exchangers according to embodiments disclosed herein may maintain two-phase fluid flow even at significantly reduced throughput levels, thus advantageously allowing for a broader throughput range.
- While the disclosure includes a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that other embodiments may be devised which do not depart from the scope of the present disclosure. Accordingly, the scope should be limited only by the attached claims.
Claims (20)
1. A heat exchanger comprising:
a shell having a fluid inlet and a fluid outlet;
a plurality of baffles mounted in the shell to guide the fluid into a helical flow pattern through the shell;
wherein a helix angle α of a baffle proximate the inlet is different than a helix angle β of a baffle proximate the outlet.
2. The heat exchanger of claim 1 , wherein helix angle β is less than helix angle α.
3. The heat exchanger of claim 1 , wherein helix angle α is less than helix angle β.
4. The heat exchanger of claim 1 , wherein the helix angle of the plurality of baffles decreases from the fluid inlet to the fluid outlet.
5. The heat exchanger of claim 1 , wherein the helix angle of the plurality of baffles increases from the fluid inlet to the fluid outlet.
6. The heat exchanger of claim 1 , wherein a baffle intermediate the baffle proximate the inlet and the baffle proximate the outlet has a helix angle γ intermediate helix angles α and β.
7. The heat exchanger of claim 1 , wherein helix angle α is less than helix angle β, and wherein helix angle α is within the range from about 5° to about 35° and wherein helix angle β is within the range from about 15° to about 45°.
8. The heat exchanger of claim 7 , wherein helix angle α is within the range from about 5° to about 25°.
9. A shell and tube heat exchanger comprising:
an tubeside inlet manifold having a first fluid inlet therein;
an tubeside outlet manifold having a first fluid outlet therein;
a plurality of tubes extending between the manifolds and in fluid communication therewith;
a shell extending between the manifolds and encompassing said tubes, the shell having a second fluid inlet and a second fluid outlet therein;
a plurality of baffles mounted in the shell to guide the second fluid into a helical flow pattern through the shell;
wherein a helix angle α of a baffle proximate the second fluid inlet is different than a helix angle β of a baffle proximate the second fluid outlet.
10. The heat exchanger of claim 9 , wherein helix angle β is less than helix angle α.
11. The heat exchanger of claim 9 , wherein helix angle α is less than helix angle β.
12. The heat exchanger of claim 9 , wherein the helix angle of the plurality of baffles decreases from the fluid inlet to the fluid outlet.
13. The heat exchanger of claim 9 , wherein the helix angle of the plurality of baffles increases from the fluid inlet to the fluid outlet.
14. The heat exchanger of claim 9 , wherein a baffle intermediate the baffle proximate the inlet and the baffle proximate the outlet has a helix angle γ intermediate helix angles α and β.
15. The heat exchanger of claim 9 , wherein helix angle α is less than helix angle β, and wherein helix angle α is within the range from about 5° to about 35° and wherein helix angle β is within the range from about 15° to about 45°.
16. The heat exchanger of claim 15 , wherein helix angle α is within the range from about 5° to about 25°.
17. A process for exchanging heat with a mixed phase fluid, the process comprising:
feeding a mixed phase fluid comprising a vapor and at least one of an entrained liquid and an entrained solid to a heat exchanger, the heat exchanger comprising:
a shell having a fluid inlet, and a fluid outlet;
a plurality of baffles mounted in the shell to guide the fluid into a helical flow pattern through the shell;
converting the mixed phase fluid to essentially all vapor; and
indirectly exchanging heat between the mixed phase fluid and a heat exchange medium;
wherein a helix angle α of a baffle proximate the inlet maintains a velocity of the mixed phase fluid greater than a terminal velocity of the entrained liquid or solid; and
wherein a helix angle β of a baffle proximate the outlet is greater than helix angle α of the baffle proximate the inlet.
18. The process of claim 10 , wherein the converting comprises evaporating the entrained liquid.
19. The process of claim 10 , wherein the converting comprises combusting the entrained solid.
20. The heat exchanger of claim 17 , wherein helix angle α is within the range from about 5° to about 35° and wherein helix angle β is within the range from about 15° to about 45°.
Priority Applications (29)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/133,917 US20090301699A1 (en) | 2008-06-05 | 2008-06-05 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
TW098116182A TWI372232B (en) | 2008-06-05 | 2009-05-15 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
ES09758983.2T ES2585566T3 (en) | 2008-06-05 | 2009-05-20 | Heat exchange procedure with a mixed phase fluid |
PT97589832T PT2315994T (en) | 2008-06-05 | 2009-05-20 | Process for exchanging heat with a mixed phase fluid |
EA201071432A EA017912B1 (en) | 2008-06-05 | 2009-05-20 | Vertical combined “feed/effluent” heat exchanger with variable baffle angle |
UAA201014495A UA101194C2 (en) | 2008-06-05 | 2009-05-20 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
MX2010013229A MX2010013229A (en) | 2008-06-05 | 2009-05-20 | Vertical combined feed/effluent heat exchanger with variable baffle angle. |
PCT/US2009/044605 WO2009148822A2 (en) | 2008-06-05 | 2009-05-20 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
AU2009255450A AU2009255450B2 (en) | 2008-06-05 | 2009-05-20 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
MYPI2010005774A MY159341A (en) | 2008-06-05 | 2009-05-20 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
KR1020107028913A KR101256733B1 (en) | 2008-06-05 | 2009-05-20 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
DK09758983.2T DK2315994T3 (en) | 2008-06-05 | 2009-05-20 | METHOD OF HEAT EXCHANGE WITH A MIXED PHASE FLUID |
PL09758983T PL2315994T3 (en) | 2008-06-05 | 2009-05-20 | Process for exchanging heat with a mixed phase fluid |
JP2011512523A JP5237444B2 (en) | 2008-06-05 | 2009-05-20 | Vertical combined feed / effluent heat exchanger with variable baffle angle |
SG2013043112A SG191645A1 (en) | 2008-06-05 | 2009-05-20 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
CN2009801205044A CN102047062A (en) | 2008-06-05 | 2009-05-20 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
NZ589501A NZ589501A (en) | 2008-06-05 | 2009-05-20 | Shell and tube heat exchanger with spiral baffles fixed at multiple helical angles |
BRPI0911382A BRPI0911382B1 (en) | 2008-06-05 | 2009-05-20 | process for exchanging heat with a mixed phase fluid |
EP09758983.2A EP2315994B1 (en) | 2008-06-05 | 2009-05-20 | Process for exchanging heat with a mixed phase fluid |
CA2726121A CA2726121C (en) | 2008-06-05 | 2009-05-20 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
PE2009000772A PE20100437A1 (en) | 2008-06-05 | 2009-06-04 | FEED / EFFLUENT COMBINED VERTICAL HEAT EXCHANGER WITH VARIABLE ANGLE DEFLECTOR |
CL2009001364A CL2009001364A1 (en) | 2008-06-05 | 2009-06-05 | Heat exchanger comprising a shell with a fluid inlet and a fluid outlet, a plurality of baffles mounted on the shell to guide fluid in a helical flow pattern through the shell; a process for exchanging heat with a mixed phase fluid. |
ARP090102048A AR072067A1 (en) | 2008-06-05 | 2009-06-05 | VERTICAL HEAT EXCHANGER COMBINED FOOD / EFFLUENT WITH VARIABLE ANGLE DEFLECTOR |
IL209550A IL209550A0 (en) | 2008-06-05 | 2010-11-24 | Vertica combined feed/effluent heat exchanger with variable baffle angle |
ZA2010/08783A ZA201008783B (en) | 2008-06-05 | 2010-12-07 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
CO10154861A CO6311036A2 (en) | 2008-06-05 | 2010-12-09 | VERTICAL CHARGING / EFFLUENT THERMOMETER COMBINED WITH VARIABLE DEFLECTOR ANGLE |
EC2011010743A ECSP11010743A (en) | 2008-06-05 | 2011-01-05 | VERTICAL FEED / EFFLUENT VERTICAL HEAT EXCHANGER WITH VARIABLE DEFLECTOR ANGLE |
JP2013066371A JP5671087B2 (en) | 2008-06-05 | 2013-03-27 | Vertical combined feed / effluent heat exchanger with variable baffle angle |
PH12013501095A PH12013501095A1 (en) | 2008-06-05 | 2013-05-29 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/133,917 US20090301699A1 (en) | 2008-06-05 | 2008-06-05 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
Publications (1)
Publication Number | Publication Date |
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US20090301699A1 true US20090301699A1 (en) | 2009-12-10 |
Family
ID=41398773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/133,917 Abandoned US20090301699A1 (en) | 2008-06-05 | 2008-06-05 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
Country Status (28)
Country | Link |
---|---|
US (1) | US20090301699A1 (en) |
EP (1) | EP2315994B1 (en) |
JP (2) | JP5237444B2 (en) |
KR (1) | KR101256733B1 (en) |
CN (1) | CN102047062A (en) |
AR (1) | AR072067A1 (en) |
AU (1) | AU2009255450B2 (en) |
BR (1) | BRPI0911382B1 (en) |
CA (1) | CA2726121C (en) |
CL (1) | CL2009001364A1 (en) |
CO (1) | CO6311036A2 (en) |
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PE (1) | PE20100437A1 (en) |
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PT (1) | PT2315994T (en) |
SG (1) | SG191645A1 (en) |
TW (1) | TWI372232B (en) |
UA (1) | UA101194C2 (en) |
WO (1) | WO2009148822A2 (en) |
ZA (1) | ZA201008783B (en) |
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US20160018168A1 (en) * | 2014-07-21 | 2016-01-21 | Nicholas F. Urbanski | Angled Tube Fins to Support Shell Side Flow |
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US20180029901A1 (en) * | 2014-05-28 | 2018-02-01 | Gary P. Katz | Apparatus, Method and System to Remove Contaminates from Contaminated Fluids |
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Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1525094A (en) * | 1921-03-05 | 1925-02-03 | Griscom Russell Co | Multivane cooler |
US3400758A (en) * | 1966-05-16 | 1968-09-10 | United Aircraft Prod | Helical baffle means in a tubular heat exchanger |
US3498370A (en) * | 1968-05-06 | 1970-03-03 | Joseph E Raggs | Heat exchanger |
JPS5912294A (en) * | 1982-07-12 | 1984-01-21 | Kamui Sangyo Kk | Production of multitubular-type heat exchanger |
US4454911A (en) * | 1980-11-11 | 1984-06-19 | Morteza Arbabian | Waste water heat recovery apparatus |
JPS59173695A (en) * | 1983-03-22 | 1984-10-01 | Osamu Fukuya | Spiral baffle in heat exchanger |
US5454429A (en) * | 1992-05-23 | 1995-10-03 | Neurauter; Peter | Rods and mandrel turbulators for heat exchanger |
US5832991A (en) * | 1995-12-29 | 1998-11-10 | Cesaroni; Joseph Anthony | Tube and shell heat exchanger with baffle |
US6484795B1 (en) * | 1999-09-10 | 2002-11-26 | Martin R. Kasprzyk | Insert for a radiant tube |
US6513583B1 (en) * | 1998-09-24 | 2003-02-04 | Serck Aviation Limited | Heat exchanger |
US6793008B2 (en) * | 2000-03-14 | 2004-09-21 | Walzen Irle Gmbh | Rotatable roller |
US6827138B1 (en) * | 2003-08-20 | 2004-12-07 | Abb Lummus Global Inc. | Heat exchanger |
US20050150643A1 (en) * | 2002-06-24 | 2005-07-14 | Daniel Chartouni | Heat exchanger |
US7740057B2 (en) * | 2007-02-09 | 2010-06-22 | Xi'an Jiaotong University | Single shell-pass or multiple shell-pass shell-and-tube heat exchanger with helical baffles |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US948835A (en) * | 1910-02-08 | Bruce Walter | Ammonia-condenser. | |
JPS5214858B2 (en) * | 1971-12-13 | 1977-04-25 | ||
JPS51119049U (en) * | 1975-03-24 | 1976-09-27 | ||
JPS6036854A (en) * | 1983-08-10 | 1985-02-26 | 株式会社荏原製作所 | Condenser |
JP2573806Y2 (en) * | 1991-07-23 | 1998-06-04 | 三菱重工業株式会社 | Shell and tube absorption condenser |
JPH08261686A (en) * | 1995-03-28 | 1996-10-11 | Ishikawajima Harima Heavy Ind Co Ltd | Heat exchanger and manufacture of baffle plate for the exchanger |
KR200206338Y1 (en) * | 2000-07-19 | 2000-12-01 | 아텍 엔지니어링주식회사 | Heat exchanger |
-
2008
- 2008-06-05 US US12/133,917 patent/US20090301699A1/en not_active Abandoned
-
2009
- 2009-05-15 TW TW098116182A patent/TWI372232B/en active
- 2009-05-20 KR KR1020107028913A patent/KR101256733B1/en active IP Right Grant
- 2009-05-20 JP JP2011512523A patent/JP5237444B2/en active Active
- 2009-05-20 BR BRPI0911382A patent/BRPI0911382B1/en active IP Right Grant
- 2009-05-20 WO PCT/US2009/044605 patent/WO2009148822A2/en active Application Filing
- 2009-05-20 PT PT97589832T patent/PT2315994T/en unknown
- 2009-05-20 ES ES09758983.2T patent/ES2585566T3/en active Active
- 2009-05-20 EP EP09758983.2A patent/EP2315994B1/en active Active
- 2009-05-20 DK DK09758983.2T patent/DK2315994T3/en active
- 2009-05-20 UA UAA201014495A patent/UA101194C2/en unknown
- 2009-05-20 AU AU2009255450A patent/AU2009255450B2/en active Active
- 2009-05-20 EA EA201071432A patent/EA017912B1/en not_active IP Right Cessation
- 2009-05-20 SG SG2013043112A patent/SG191645A1/en unknown
- 2009-05-20 PL PL09758983T patent/PL2315994T3/en unknown
- 2009-05-20 NZ NZ589501A patent/NZ589501A/en not_active IP Right Cessation
- 2009-05-20 CA CA2726121A patent/CA2726121C/en active Active
- 2009-05-20 MY MYPI2010005774A patent/MY159341A/en unknown
- 2009-05-20 MX MX2010013229A patent/MX2010013229A/en active IP Right Grant
- 2009-05-20 CN CN2009801205044A patent/CN102047062A/en active Pending
- 2009-06-04 PE PE2009000772A patent/PE20100437A1/en not_active Application Discontinuation
- 2009-06-05 CL CL2009001364A patent/CL2009001364A1/en unknown
- 2009-06-05 AR ARP090102048A patent/AR072067A1/en not_active Application Discontinuation
-
2010
- 2010-11-24 IL IL209550A patent/IL209550A0/en unknown
- 2010-12-07 ZA ZA2010/08783A patent/ZA201008783B/en unknown
- 2010-12-09 CO CO10154861A patent/CO6311036A2/en active IP Right Grant
-
2011
- 2011-01-05 EC EC2011010743A patent/ECSP11010743A/en unknown
-
2013
- 2013-03-27 JP JP2013066371A patent/JP5671087B2/en not_active Expired - Fee Related
- 2013-05-29 PH PH12013501095A patent/PH12013501095A1/en unknown
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1525094A (en) * | 1921-03-05 | 1925-02-03 | Griscom Russell Co | Multivane cooler |
US3400758A (en) * | 1966-05-16 | 1968-09-10 | United Aircraft Prod | Helical baffle means in a tubular heat exchanger |
US3498370A (en) * | 1968-05-06 | 1970-03-03 | Joseph E Raggs | Heat exchanger |
US4454911A (en) * | 1980-11-11 | 1984-06-19 | Morteza Arbabian | Waste water heat recovery apparatus |
JPS5912294A (en) * | 1982-07-12 | 1984-01-21 | Kamui Sangyo Kk | Production of multitubular-type heat exchanger |
JPS59173695A (en) * | 1983-03-22 | 1984-10-01 | Osamu Fukuya | Spiral baffle in heat exchanger |
US5454429A (en) * | 1992-05-23 | 1995-10-03 | Neurauter; Peter | Rods and mandrel turbulators for heat exchanger |
US5832991A (en) * | 1995-12-29 | 1998-11-10 | Cesaroni; Joseph Anthony | Tube and shell heat exchanger with baffle |
US6513583B1 (en) * | 1998-09-24 | 2003-02-04 | Serck Aviation Limited | Heat exchanger |
US6484795B1 (en) * | 1999-09-10 | 2002-11-26 | Martin R. Kasprzyk | Insert for a radiant tube |
US6793008B2 (en) * | 2000-03-14 | 2004-09-21 | Walzen Irle Gmbh | Rotatable roller |
US20050150643A1 (en) * | 2002-06-24 | 2005-07-14 | Daniel Chartouni | Heat exchanger |
US6827138B1 (en) * | 2003-08-20 | 2004-12-07 | Abb Lummus Global Inc. | Heat exchanger |
US7740057B2 (en) * | 2007-02-09 | 2010-06-22 | Xi'an Jiaotong University | Single shell-pass or multiple shell-pass shell-and-tube heat exchanger with helical baffles |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
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US20150083382A1 (en) * | 2013-09-24 | 2015-03-26 | Zoneflow Reactor Technologies, LLC | Heat exchanger |
US10655921B2 (en) | 2013-12-18 | 2020-05-19 | Casale Sa | Tube heat exchange unit for internals of heat exchangers reactors |
US20160334175A1 (en) * | 2014-02-03 | 2016-11-17 | Duerr Cyplan Ltd. | Flow devices and methods for guiding fluid flow |
US10386130B2 (en) * | 2014-02-03 | 2019-08-20 | Duerr Cyplan Ltd. | Flow devices and methods for guiding fluid flow |
US10858267B2 (en) * | 2014-05-28 | 2020-12-08 | Katz Water Tech, Llc | Apparatus, method and system to remove contaminates from contaminated fluids |
US20180029901A1 (en) * | 2014-05-28 | 2018-02-01 | Gary P. Katz | Apparatus, Method and System to Remove Contaminates from Contaminated Fluids |
US20160018168A1 (en) * | 2014-07-21 | 2016-01-21 | Nicholas F. Urbanski | Angled Tube Fins to Support Shell Side Flow |
US10046251B2 (en) | 2014-11-17 | 2018-08-14 | Exxonmobil Upstream Research Company | Liquid collection system |
US10788273B2 (en) | 2015-07-06 | 2020-09-29 | Casale Sa | Shell-and-tube equipment with antivibration baffles and related assembling method |
US10962289B2 (en) | 2015-11-19 | 2021-03-30 | Lg Chem Ltd. | High-vacuum serial condenser system |
US10823508B2 (en) * | 2016-04-14 | 2020-11-03 | Linde Aktiengesellschaft | Helically coiled heat exchanger |
EA038419B1 (en) * | 2016-07-19 | 2021-08-26 | Ламмус Текнолоджи Инк. | Feed effluent heat exchanger |
WO2018017773A1 (en) * | 2016-07-19 | 2018-01-25 | Lummus Technology Inc. | Feed effluent heat exchanger |
US11213779B2 (en) | 2017-01-31 | 2022-01-04 | Sierra Space Corporation | Low-gravity water capture device |
CN111397405A (en) * | 2018-07-20 | 2020-07-10 | 山东大学 | Vapor-liquid two-phase flow heat exchange tube |
US11660557B2 (en) | 2018-08-27 | 2023-05-30 | Sierra Space Corporation | Low-gravity water capture device with water stabilization |
US20220008838A1 (en) * | 2019-01-29 | 2022-01-13 | Yara International Asa | High pressure strippers for use in urea plants |
US20220236014A1 (en) * | 2019-05-28 | 2022-07-28 | Sulzer Management Ag | Tube-bundle heat exchanger comprising assemblies/built-in elements formed of deflection surfaces and directing sections |
US11287196B2 (en) * | 2019-05-31 | 2022-03-29 | Lummus Technology Llc | Helically baffled heat exchanger |
CN110373315A (en) * | 2019-07-04 | 2019-10-25 | 乐山勤力农业开发有限公司 | A kind of charging heating means of marsh gas fermentation |
WO2021220125A1 (en) * | 2020-04-30 | 2021-11-04 | Forbes Marshall Private Limited | A device for separating moisture from wet steam |
WO2022034013A1 (en) | 2020-08-10 | 2022-02-17 | Technip France | A shell-and-tube heat exchanger, method of exchanging heat and use of heat exchanger |
CN112710169A (en) * | 2020-12-07 | 2021-04-27 | 重庆环纽信息科技有限公司 | Waste heat utilization device of waste oil regeneration rectification catalytic system |
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