EP1498678B1 - Echangeur de chaleur avec un tuyau bypass - Google Patents

Echangeur de chaleur avec un tuyau bypass Download PDF

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Publication number
EP1498678B1
EP1498678B1 EP03015944A EP03015944A EP1498678B1 EP 1498678 B1 EP1498678 B1 EP 1498678B1 EP 03015944 A EP03015944 A EP 03015944A EP 03015944 A EP03015944 A EP 03015944A EP 1498678 B1 EP1498678 B1 EP 1498678B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
piston
bypass tube
tube
outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03015944A
Other languages
German (de)
English (en)
Other versions
EP1498678A1 (fr
Inventor
Michael Fix
Konrad Nassauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Borsig GmbH
Original Assignee
Borsig GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Borsig GmbH filed Critical Borsig GmbH
Priority to ES03015944T priority Critical patent/ES2271434T3/es
Priority to DK03015944T priority patent/DK1498678T3/da
Priority to DE50304958T priority patent/DE50304958D1/de
Priority to AT03015944T priority patent/ATE338931T1/de
Priority to EP03015944A priority patent/EP1498678B1/fr
Publication of EP1498678A1 publication Critical patent/EP1498678A1/fr
Application granted granted Critical
Publication of EP1498678B1 publication Critical patent/EP1498678B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
    • 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
    • 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
    • F28D2021/0075—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for syngas or cracked gas cooling systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/06—Derivation channels, e.g. bypass

Definitions

  • the invention relates to a heat exchanger with a bypass tube for cooling hot gases from petrochemical plants by evaporating water with the features of the preamble of claim 1.
  • a heat exchanger for cooling hot gases from petrochemical plants, such as ammonia, hydrogen or methanol production plants or coal gasification plants, with the aid of evaporating water is known.
  • a bypass tube is arranged parallel to the heat exchanger tubes, in which engages a closure member.
  • the closure member of the known heat exchanger consists either of a control plate which is either pivotable or axially displaceable over an outwardly guided rod. Due to the nature of the process gases, the control plate lying in the gas flow is subject to corrosion such as carburizing, decarburization or other removal processes.
  • the invention has for its object to make the closure member and arrange in the heat exchanger that corrosion on the closure member does not occur.
  • the serving as a closure member piston is cooled in the manner indicated. This ensures that the metal temperature of the piston is outside the temperature range in which a process gas-related corrosion such as by carburizing, decarburization or other corrosive removal processes can occur.
  • the illustrated heat exchanger serves to cool hot gases from a petrochemical plant.
  • the heat exchanger contains within an outer shell 1, a tube bundle of straight heat exchanger tubes 2, the ends of which are held in a respective tube plate 3, 4.
  • connection 9 for the supply and with a connection 10 for removal a heat exchange medium provided.
  • a heat exchange medium evaporating water is used.
  • bypass tube 11 is guided through the heat exchanger.
  • the bypass pipe 11 penetrates the tube sheets 3, 4 and connects the inlet chamber 5 with the outlet chamber 6.
  • the bypass tube 11 has a larger cross section than the heat exchanger tubes 2.
  • the outlet-side end of the bypass tube 11 protrudes into the outlet chamber 6 and is connected there to a cylindrical guide tube 12, which runs perpendicular to the longitudinal axis of the bypass tube 11.
  • the guide tube 12 is arranged coaxially with the outlet nozzle 8, wherein between the outlet end of the guide tube 12 and the inlet end of the outlet nozzle 8, an axial distance is present.
  • a piston 13 is arranged axially displaceable, which serves as a closure member for the bypass tube 11.
  • a rear actuating rod 14 is fixed, which is guided through the wall of the outlet chamber 6 to the outside of the heat exchanger and provided there with an actuator, not shown.
  • the piston 13 is designed as a double-walled hollow cylinder, in the interior of which a core 16 made of a ceramic refractory material is arranged. Through the double wall 15 of the piston 13 meandering cooling channels 23 are passed, which are traversed by a coolant.
  • the cooling channels 23 are connected to a supply line 24, which is arranged in the actuating rod 14 and outside of the outlet chamber 6 is provided with a cooling medium inlet 25.
  • the cooling channels terminate in a cooling medium outlet 26, which opens into the outlet chamber 6.
  • a cylindrical slider 17 is connected via a cantilever 18 with the actuating rod 14.
  • the inner diameter of the cylindrical slide 17 is so much larger than the outer diameter of the outlet nozzle 8, that the cylindrical slide can just slide over the outlet nozzle.
  • the cylindrical slide 17 is arranged within the outlet chamber 6 so that it can engage over the outlet nozzle 8.
  • the guide tube 12 is smaller than that of the outlet nozzle 8
  • - as shown in the drawing - the guide tube 12 surrounded by an annular, radially to the guide tube 12 aligned plate 19 whose outer diameter is approximately equal to the inner diameter of the cylindrical slide 17, so that the cylindrical slider 17 can slide over the plate 19.
  • the height of the cylindrical slide 17 is slightly larger than the distance of the annular plate 19 from the upper edge of the outlet nozzle 8, but smaller than the projecting into the outlet chamber 6 height of the outlet nozzle. 8
  • the entering through the inlet nozzle 7 in the inlet chamber 5 stream 20 of the hot process gas is divided into two partial streams 21, 22.
  • the first partial flow 21 flows through the heat exchanger tubes 2 and is thereby cooled.
  • the partial flow 21 passes after flowing through the heat exchanger tubes 2 in the outlet chamber 6.
  • the second partial flow 22 flows through the bypass tube 11, wherein the second partial flow 22 due to the comparatively large diameter of the bypass tube 11 undergoes no cooling.
  • both partial flows 21, 22 enter the outlet connection 8 and are mixed together there. According to the proportions of the partial flows 21, 22, which result from the position of the piston 13, the escaping gas assumes the required end temperature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • External Artificial Organs (AREA)

Claims (6)

  1. Échangeur de chaleur destiné à refroidir des gaz chauds provenant d'installations pétrochimiques au moyen d'eau en cours d'évaporation, constitué de tubes d'échangeur de chaleur (2), de chaque fois une chambre d'entrée (5) et une chambre de sortie (6) dans lesquelles débouchent les tubes d'échangeur de chaleur (2) et d'un tube en dérivation (11) qui traverse l'échangeur de chaleur sensiblement au centre et parallèlement aux tubes d'échangeur de chaleur (2) et relie la chambre d'entrée (5) à la chambre de sortie (6), un organe obturateur étant disposé de manière à pouvoir être introduit dans la section transversale du tube en dérivation (11) et obturant ou libérant totalement ou partiellement la section transversale, et l'organe obturateur étant pourvu d'une tige de commande (14) arrière sortant vers l'extérieur, caractérisé en ce que le tube en dérivation (11) est relié de manière étanche à un tube-guide (12), qu'un piston (13) réalisé en tant qu'organe obturateur est monté pour coulisser axialement dans le tube-guide (12), que le piston (13) est réalisé à double paroi et que des canaux de refroidissement (23) parcourus par un liquide de refroidissement sont ménagés dans la double paroi (15) du piston (13).
  2. Échangeur de chaleur selon la revendication 1, caractérisé en ce qu'à travers la tige de commande (14) est disposée une conduite d'alimentation en liquide de refroidissement (24) qui est reliée aux canaux de refroidissement (23) dans la double paroi (15) du piston (13).
  3. Échangeur de chaleur selon la revendication 1 ou 2 caractérisé en ce que le piston (13) est réalisé en tant que cylindre creux.
  4. Échangeur de chaleur selon la revendication 3, caractérisé en ce que dans le cylindre creux est disposé une âme (16) formée d'une masse céramique.
  5. Échangeur de chaleur selon l'une des revendications 1 à 4, caractérisé en ce que le tube-guide (12) est disposé perpendiculairement à l'axe longitudinal du tube en dérivation (11) et coaxialement par rapport à la tubulure de sortie (8).
  6. Échangeur de chaleur selon l'une des revendications 1 à 5, caractérisé en ce qu'en dessous du piston (13), un coulisseau cylindrique (17) est relié à la tige de commande (14) par l'intermédiaire d'un bras en porte-à-faux (18) et que dans la position d'obturation du piston (13) le coulisseau cylindrique (17) sépare le tube en dérivation (11) et la tubulure de sortie (8) par rapport à la chambre de sortie (6).
EP03015944A 2003-07-12 2003-07-12 Echangeur de chaleur avec un tuyau bypass Expired - Lifetime EP1498678B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES03015944T ES2271434T3 (es) 2003-07-12 2003-07-12 Intercambiador de calor con un tubo bypas.
DK03015944T DK1498678T3 (da) 2003-07-12 2003-07-12 Varmeveksler med et bypass-rör
DE50304958T DE50304958D1 (de) 2003-07-12 2003-07-12 Wärmetauscher mit einem Bypassrohr
AT03015944T ATE338931T1 (de) 2003-07-12 2003-07-12 Wärmetauscher mit einem bypassrohr
EP03015944A EP1498678B1 (fr) 2003-07-12 2003-07-12 Echangeur de chaleur avec un tuyau bypass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03015944A EP1498678B1 (fr) 2003-07-12 2003-07-12 Echangeur de chaleur avec un tuyau bypass

Publications (2)

Publication Number Publication Date
EP1498678A1 EP1498678A1 (fr) 2005-01-19
EP1498678B1 true EP1498678B1 (fr) 2006-09-06

Family

ID=33462104

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03015944A Expired - Lifetime EP1498678B1 (fr) 2003-07-12 2003-07-12 Echangeur de chaleur avec un tuyau bypass

Country Status (5)

Country Link
EP (1) EP1498678B1 (fr)
AT (1) ATE338931T1 (fr)
DE (1) DE50304958D1 (fr)
DK (1) DK1498678T3 (fr)
ES (1) ES2271434T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3262363B1 (fr) 2015-02-27 2020-04-29 Technip France Système de chaudière à récupération de chaleur et procédé de refroidissement d'un gaz de processus

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005057674B4 (de) * 2005-12-01 2008-05-08 Alstom Technology Ltd. Abhitzekessel
DE102008051268A1 (de) * 2008-10-10 2010-04-15 Mahle International Gmbh Kühleinrichtung
EP2312252B1 (fr) * 2009-10-07 2013-03-20 Lurgi GmbH Caisson de refroidissement et procédé de refroidissement de gaz de synthèse
MX2013003048A (es) * 2010-09-30 2013-05-30 Haldor Topsoe As Caldera de calor residual.
EP2562506A1 (fr) * 2011-08-23 2013-02-27 Yu Shen Machinery Co., Ltd. Échangeur de chaleur à calandre
WO2014143167A1 (fr) 2013-03-15 2014-09-18 Koenig Mark E Procédé de traitement de matière pour un gazéifieur
GB2516122B (en) * 2013-03-15 2016-03-23 Mark Koenig Isolation Gate
US10190065B2 (en) 2013-03-15 2019-01-29 Mark E. Koenig Feed delivery system and method for gasifier
CN103913078A (zh) * 2014-04-16 2014-07-09 曾建 高温废气热能回收装置
DE102015013517A1 (de) * 2015-10-20 2017-04-20 Borsig Gmbh Wärmeübertrager
EP3407001A1 (fr) 2017-05-26 2018-11-28 ALFA LAVAL OLMI S.p.A. Équipement à faisceau tubulaire muni d'une dérivation
EP4368933A1 (fr) 2022-11-10 2024-05-15 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dispositif de régulation pour réguler la température d'un gaz de processus et échangeur de chaleur doté d'un dispositif de régulation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670933A (en) * 1950-02-24 1954-03-02 Thomas J Bay Engine cooling apparatus
DE2846455C2 (de) * 1978-10-23 1980-07-31 Borsig Gmbh, 1000 Berlin Rohrbündel-Wärmetauscher mit gleichbleibender Austrittstemperatur eines der beiden Medien
DE3828034A1 (de) * 1988-08-18 1990-02-22 Borsig Gmbh Waermetauscher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3262363B1 (fr) 2015-02-27 2020-04-29 Technip France Système de chaudière à récupération de chaleur et procédé de refroidissement d'un gaz de processus

Also Published As

Publication number Publication date
ES2271434T3 (es) 2007-04-16
ATE338931T1 (de) 2006-09-15
DK1498678T3 (da) 2007-01-22
DE50304958D1 (de) 2006-10-19
EP1498678A1 (fr) 2005-01-19

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