AU2009255450B2 - Vertical combined feed/effluent heat exchanger with variable baffle angle - Google Patents
Vertical combined feed/effluent heat exchanger with variable baffle angle Download PDFInfo
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- AU2009255450B2 AU2009255450B2 AU2009255450A AU2009255450A AU2009255450B2 AU 2009255450 B2 AU2009255450 B2 AU 2009255450B2 AU 2009255450 A AU2009255450 A AU 2009255450A AU 2009255450 A AU2009255450 A AU 2009255450A AU 2009255450 B2 AU2009255450 B2 AU 2009255450B2
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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
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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
- 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
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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
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
- F28F2009/228—Oblique partitions
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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)
- 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
WO 2009/148822 PCT/US2009/044605 VERTICAL COMBINED FEED/EFFLUENT HEAT EXCHANGER WITH VARIABLE BAFFLE ANGLE BACKGROUND OF DISCLOSURE Field of the Disclosure [0001] 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. Background [0002] 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 Figure 1, includes a cylindrical shell 10 housing a bundle of parallel pipes 12, which extend between two end plates 14 so that a first 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 by intermediate 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. The baffles 20, configured as either partial circular segments as shown (partial segmental baffles), or as annular rings and discs, are installed perpendicular to a longitudinal axis 22 of the shell 10 to provide a zigzag flow 24 of the second fluid 18. [00031 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. [0004] Pressure drop, flow distribution, and heat transfer efficiencies are important variables, especially in the many industrial chemical processes where a vapor phase 1 WO 2009/148822 PCT/US2009/044605 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. [00051 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. 100061 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. Patent Nos. 5,832,991, 6,513,583, and 6,827,138. [0007] 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 2 WO 2009/148822 PCT/US2009/044605 considerations must also be addressed, as the tubeside will normally be easier to clean. [00081 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. [0009] 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. [0010] Accordingly, there exists a need for heat exchanger and baffle designs for effectively processing two-phase inlet flow in vertical units. SUMMARY OF THE DISCLOSURE 100111 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 a of a baffle proximate the inlet is different than a helix angle P of a baffle proximate the outlet. 10012] 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 a of a baffle proximate the second fluid inlet is different than a helix angle P of a baffle proximate the second fluid outlet. 10013] 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 3 WO 2009/148822 PCT/US2009/044605 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 a 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 P of a baffle proximate the outlet is greater than helix angle a of the baffle proximate the inlet. [00141 Other aspects and advantages will be apparent from the following description and the appended claims. BRIEF DESCRIPTION OF DRAWINGS [00151 Figure 1 is a diagrammatic view of flow distribution in a conventional shell and tube heat exchanger. 100161 Figure 2 is a schematic drawing of a vertical combined feed / effluent heat exchanger with variable heat baffle angle according to embodiments disclosed herein. DETAILED DESCRIPTION [00171 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. [0018] 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 4 WO 2009/148822 PCT/US2009/044605 outlet, providing for heat exchange at lower velocities for the less dense vapor and a relatively low pressure drop through the heat exchanger. [0019] 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. [0020] 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. 10021] Referring now to Figure 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 a tubeside inlet manifold 32 having a fluid inlet 34 therein. Tubeside inlet manifold 32 may also have a vent 36 disposed therein. Heat exchanger 30 may also include a tubeside outlet manifold 38 having a fluid outlet 40 therein. A plurality of tubes 42 may extend between the tubeside inlet manifold 32 and outlet manifold 38, allowing for transport of a fluid from the inlet manifold 32 to outlet manifold 38 through 5 WO 2009/148822 PCT/US2009/044605 tubes 42. Figure 2 illustrates the use of four tubes, however it is to be understood that any number of tubes may be used. [0022] Shell 44 extends between inlet and outlet manifolds 32, 38, encompassing tubes 42, and includes a shellside fluid inlet 46 and a shellside fluid outlet 48. Located within shell 44 is a plurality of baffles 50. Baffles 50 may include, for example, helical baffles as described in U.S. Patent 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 allow tubes 42 to pass through baffles 50, and to allow baffles 50 to retain tubes 42 in an aligned and desired location. Baffles 50 may act to guide the shellside fluid into a helical flow pattern through the shell. [0023] Baffles 50 are arranged within heat exchanger 30 such that baffles 50 proximate the shellside inlet 46 have a different helix angle than baffles 50 proximate 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 in Figure 2 for baffle 50a, 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 3600). The pitch is equal to: p = C*tan(); where P is the helix angle. Therefore, helix angle p is equal to arctan (p/C). [00241 As illustrated, heat exchanger 30 is equipped with helical baffles 50 oriented vertically. Baffles 50 proximate shellside inlet 46 may have a helix angle a. Baffles 50 proximate shellside outlet 48 may have a helix angle P with respect to longitudinal axis A-A of shell 44. Thus, for example, for a vaporizing two-phase shellside feed stream entering via shellside inlet 46, the baffles 50 proximate the inlet 46 are arranged at a low helix angle a; i.e., closer to perpendicular with respect to axis A-A than baffles 50 proximate shellside outlet 48, having a helix angle $, 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 a 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/gas proximate outlet 48, a helix angle p greater than helix angle a may be used, 6 WO 2009/148822 PCT/US2009/044605 thus resulting in a lower pressure drop than where angle a is used along the entire length of shell 44. [00251 In some embodiments, baffles intermediate shellside fluid inlet 46 and outlet 48 may have a helix angle y intermediate that of helix angles a, P. For example, the helix angles of baffles 50 may gradually increase or decrease from inlet 46 to outlet 48, depending on the type of service (e.g., condensing, evaporating, etc.). In other embodiments, the helix angles for baffles 50 may undergo one or more step changes. 100261 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. [00271 The vertical combined feed/effluent heat exchangers described herein may use baffles having an approximate helix angle within the range from about 5' to 450, inclusive. Any combination of baffle angles a, P and y (if present) which creates an appropriate helix angle may be used in accordance with embodiments disclosed herein. [00281 For example, in some embodiments, helix angle a may be within the range from about 50 to about 450; within the range from about 5' to about 35' in other embodiments; and from about 5' to about 25' in yet other embodiments. [00291 In other embodiments, baffle angle P may be within the range from 150 to about 450; within the range from about 250 to about 450 in other embodiments; and from about 35' to about 45' in yet other embodiments. 100301 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 7 17421-005WOl; Client Reference No. 2008LHT003 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. [00311 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. [0032] In the specification the term "comprising" shall be understood to have a broad meaning similar to the term "including" and will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps. This definition also applies to variations on the term "comprising" such as "comprise" and "comprises". [0033] The reference to any prior art in this specification is not, and should not be taken as an acknowledgement or any form of suggestion that the referenced prior art forms part of the common general knowledge in Australia. [0034] 8
Claims (8)
1. A heat exchanger comprising: a plurality of longitudinally extending tubes adapted to transport a first fluid flow from a first fluid inlet to a first fluid outlet' a shell encompassing said tubes, the shell having a fluid inlet and a second fluid outlet; and 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 a of a baffle proximate the inlet is different than a helix angle D of a baffle proximate the outlet; and wherein the heat exchanger does not include a central, axially extending structure to which the baffles are mounted.
2. The heat exchanger of claim 1, wherein helix angle 0 is less than helix angle a.
3. The heat exchanger of claim 1, wherein the helix angle of the plurality of baffles decreases from the fluid inlet to the fluid outlet.
4. 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 y intermediate helix angles a and D.
5. 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 a of a baffle proximate the second fluid inlet is different than a helix angle D of a baffle proximate the second fluid outlet; and wherein the heat exchanger does not include a central, axially extending structure to which the baffles are mounted.
6. The heat exchanger of claim 5, wherein helix angle D is less than helix angle a. 9
7. The heat exchanger of claim 5, wherein the helix angle of the plurality of baffles decreases from the fluid inlet to the fluid outlet.
8. The heat exchanger of claim 5, wherein a baffle intermediate the baffle proximate the inlet and the baffle proximate the outlet has a helix angle y intermediate helix angles a and D. 10
Applications Claiming Priority (3)
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 |
US12/133,917 | 2008-06-05 | ||
PCT/US2009/044605 WO2009148822A2 (en) | 2008-06-05 | 2009-05-20 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
Publications (2)
Publication Number | Publication Date |
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AU2009255450A1 AU2009255450A1 (en) | 2009-12-10 |
AU2009255450B2 true AU2009255450B2 (en) | 2013-09-05 |
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AU2009255450A Active AU2009255450B2 (en) | 2008-06-05 | 2009-05-20 | Vertical combined feed/effluent heat exchanger with variable baffle angle |
Country Status (28)
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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) |
DK (1) | DK2315994T3 (en) |
EA (1) | EA017912B1 (en) |
EC (1) | ECSP11010743A (en) |
ES (1) | ES2585566T3 (en) |
IL (1) | IL209550A0 (en) |
MX (1) | MX2010013229A (en) |
MY (1) | MY159341A (en) |
NZ (1) | NZ589501A (en) |
PE (1) | PE20100437A1 (en) |
PH (1) | PH12013501095B1 (en) |
PL (1) | PL2315994T3 (en) |
PT (1) | PT2315994T (en) |
SG (1) | SG191645A1 (en) |
TW (1) | TWI372232B (en) |
UA (1) | UA101194C2 (en) |
WO (1) | WO2009148822A2 (en) |
ZA (1) | ZA201008783B (en) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2006776C2 (en) * | 2011-05-13 | 2012-11-14 | Friesland Brands Bv | Evaporator system. |
EP2600092A1 (en) | 2011-12-01 | 2013-06-05 | Cockerill Maintenance & Ingenierie S.A. | Vertical heat exchanger |
DK177774B1 (en) | 2013-04-11 | 2014-06-23 | Spx Flow Technology Danmark As | HYGIENIC HEAT EXCHANGE AND METHOD FOR PREPARING A HYGIENIC HEAT EXCHANGE |
US20150083382A1 (en) * | 2013-09-24 | 2015-03-26 | Zoneflow Reactor Technologies, LLC | Heat exchanger |
EP2887001A1 (en) | 2013-12-18 | 2015-06-24 | Casale Sa | Tube heat exchange unit for internals of heat exchangers or reactors |
DE102014201908A1 (en) * | 2014-02-03 | 2015-08-06 | Duerr Cyplan Ltd. | Method for guiding a fluid flow, flow apparatus and its use |
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 |
US9783431B2 (en) * | 2014-05-28 | 2017-10-10 | Katz Water Tech, Llc | Apparatus and method to remove contaminates from a fluid |
CN104048530B (en) * | 2014-06-24 | 2016-04-20 | 中建材(合肥)粉体科技装备有限公司 | Bend slow flow type powder cooler |
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 |
EP3115734A1 (en) | 2015-07-06 | 2017-01-11 | Casale SA | Shell-and-tube equipment with antivibration baffles and related assembling method |
EP3159649B1 (en) * | 2015-10-23 | 2020-03-04 | Hamilton Sundstrand Corporation | Heat exchangers |
KR102072087B1 (en) | 2015-11-19 | 2020-01-31 | 주식회사 엘지화학 | A high-degree vacuum series condenser |
WO2017178120A1 (en) * | 2016-04-14 | 2017-10-19 | Linde Aktiengesellschaft | Wound heat exchanger |
EP3469285B1 (en) * | 2016-07-19 | 2021-11-24 | Lummus Technology Inc. | Feed effluent heat exchanger |
EP3306255B1 (en) | 2016-10-07 | 2021-03-24 | Hamilton Sundstrand Corporation | Heat exchangers |
US11213779B2 (en) | 2017-01-31 | 2022-01-04 | Sierra Space Corporation | Low-gravity water capture device |
US10371422B2 (en) | 2017-02-13 | 2019-08-06 | Daikin Applied Americas Inc. | Condenser with tube support structure |
ES2844382T3 (en) | 2017-05-24 | 2021-07-22 | Cockerill Maintenance & Ingenierie Sa | Heat exchanger for molten salt steam generator in a concentrated solar power plant |
CN111247387A (en) | 2017-08-28 | 2020-06-05 | 沃特洛电气制造公司 | Continuous spiral baffle heat exchanger |
PE20201354A1 (en) | 2017-12-11 | 2020-11-30 | Cockerill Maintenance And Ingenierie S A | HEAT EXCHANGER FOR A MELTED SALT VAPOR GENERATOR IN A CONCENTRATED SOLAR POWER PLANT (III) |
EP3502608B1 (en) | 2017-12-22 | 2021-06-30 | Cockerill Maintenance & Ingéniérie S.A. | Heat exchanger for a molten salt steam generator in a concentrated solar power plant (iii) |
CN109539830B (en) * | 2018-07-20 | 2020-06-26 | 山东大学 | Shell-and-tube heat exchanger with variable tube diameter |
US11660557B2 (en) | 2018-08-27 | 2023-05-30 | Sierra Space Corporation | Low-gravity water capture device with water stabilization |
CN109595952A (en) * | 2018-12-20 | 2019-04-09 | 佛山市天地元净化设备有限公司 | A kind of structure of compressed air freezing type drier heat exchange |
EP3689433A1 (en) * | 2019-01-29 | 2020-08-05 | Yara International ASA | High pressure strippers for use in urea plants |
CN109776376A (en) * | 2019-03-15 | 2019-05-21 | 湘潭大学 | Device and synthetic method of the continuous synthesis bromo- 2- of 4- to chloro- 5- trifluoromethyl pyrpole -3- nitrile |
CH716236A2 (en) * | 2019-05-28 | 2020-11-30 | Streiff Felix | Tube bundle heat exchanger with built-in elements made of deflection surfaces and guide bars. |
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 |
RU2734614C1 (en) * | 2019-09-18 | 2020-10-21 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Shell-and-tube heat exchanger |
KR102214267B1 (en) * | 2019-12-05 | 2021-02-10 | (주)대주기계 | Recycling heater for adsorption air dryer |
WO2021220125A1 (en) * | 2020-04-30 | 2021-11-04 | Forbes Marshall Private Limited | A device for separating moisture from wet steam |
BR112023002291A2 (en) | 2020-08-10 | 2023-04-25 | Technip Energies France | HULL AND TUBE HEAT EXCHANGER, METHOD OF HEAT EXCHANGE AND USE OF HEAT EXCHANGER |
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CN114405413B (en) * | 2021-12-09 | 2023-04-28 | 西安航天华威化工生物工程有限公司 | Reaction device for producing maleic anhydride by n-butane method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US948835A (en) * | 1910-02-08 | Bruce Walter | Ammonia-condenser. | |
WO2005019758A1 (en) * | 2003-08-20 | 2005-03-03 | Abb Lummus Global Inc. | Heat exchanger |
Family Cites Families (19)
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 |
JPS5214858B2 (en) * | 1971-12-13 | 1977-04-25 | ||
JPS51119049U (en) * | 1975-03-24 | 1976-09-27 | ||
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 |
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 |
US5454429A (en) * | 1992-05-23 | 1995-10-03 | Neurauter; Peter | Rods and mandrel turbulators for heat exchanger |
JPH08261686A (en) * | 1995-03-28 | 1996-10-11 | Ishikawajima Harima Heavy Ind Co Ltd | Heat exchanger and manufacture of baffle plate for the exchanger |
US5832991A (en) * | 1995-12-29 | 1998-11-10 | Cesaroni; Joseph Anthony | Tube and shell heat exchanger with baffle |
GB9820712D0 (en) * | 1998-09-24 | 1998-11-18 | Btr Industries Ltd | Heat exchanger |
US6484795B1 (en) * | 1999-09-10 | 2002-11-26 | Martin R. Kasprzyk | Insert for a radiant tube |
EP1136621B1 (en) * | 2000-03-14 | 2007-01-17 | Walzen Irle GmbH | Rotary roller |
KR200206338Y1 (en) * | 2000-07-19 | 2000-12-01 | 아텍 엔지니어링주식회사 | Heat exchanger |
EP1376038A1 (en) * | 2002-06-24 | 2004-01-02 | Abb Research Ltd. | 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 |
-
2008
- 2008-06-05 US US12/133,917 patent/US20090301699A1/en not_active Abandoned
-
2009
- 2009-05-15 TW TW098116182A patent/TWI372232B/en active
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- 2009-06-04 PE PE2009000772A patent/PE20100437A1/en not_active Application Discontinuation
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2010
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2011
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- 2013-03-27 JP JP2013066371A patent/JP5671087B2/en not_active Expired - Fee Related
- 2013-05-29 PH PH12013501095A patent/PH12013501095B1/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US948835A (en) * | 1910-02-08 | Bruce Walter | Ammonia-condenser. | |
WO2005019758A1 (en) * | 2003-08-20 | 2005-03-03 | Abb Lummus Global Inc. | Heat exchanger |
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