EP2365269A1 - Appareil d'échangeur thermique et de séparation de liquides - Google Patents

Appareil d'échangeur thermique et de séparation de liquides Download PDF

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Publication number
EP2365269A1
EP2365269A1 EP10002157A EP10002157A EP2365269A1 EP 2365269 A1 EP2365269 A1 EP 2365269A1 EP 10002157 A EP10002157 A EP 10002157A EP 10002157 A EP10002157 A EP 10002157A EP 2365269 A1 EP2365269 A1 EP 2365269A1
Authority
EP
European Patent Office
Prior art keywords
tubes
shell
bundle
section
foregoing
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.)
Withdrawn
Application number
EP10002157A
Other languages
German (de)
English (en)
Other versions
EP2365269A8 (fr
Inventor
Olaf Stallamnn
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.)
General Electric Technology GmbH
Original Assignee
Alstom Technology AG
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 Alstom Technology AG filed Critical Alstom Technology AG
Priority to EP10002157A priority Critical patent/EP2365269A1/fr
Priority to PCT/IB2011/000268 priority patent/WO2011107841A1/fr
Priority to TW100106965A priority patent/TW201144736A/zh
Publication of EP2365269A1 publication Critical patent/EP2365269A1/fr
Publication of EP2365269A8 publication Critical patent/EP2365269A8/fr
Withdrawn legal-status Critical Current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
    • F28D7/06—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 having a single U-bend
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F17/00—Removing ice or water from heat-exchange apparatus
    • F28F17/005—Means for draining condensates from heat exchangers, e.g. from 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
    • F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
    • 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
    • F28D2021/0038—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for drying or dehumidifying gases or vapours
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/06—Safety or protection arrangements; Arrangements for preventing malfunction by using means for draining heat exchange media from heat exchangers

Definitions

  • Heat exchanging apparatus are well known in the field of energy technology, namely power stations.
  • TEMA has classified several designs of the front-head, the shell and the rear-head of the heat exchanger.
  • the bundle of tubes may be of the so-called U-tube-type or with a floating head type.
  • TEMA floating head types BET or AET are possible.
  • the "T" head has to be elliptically shaped.
  • This type includes BEU and AEU design according to the TEMA standard.
  • an apparatus for heat exchange and demoisturizing of hot compressed gas comprising a shell, a front end stationary head, a rear end stationary head and at least one bundle of tubes, the shell comprising an inlet and an outlet for the compressed gas, wherein the shell is divided into a first section and a second section and the at least one bundle of tubes is located in the first section and in the second section a liquid accumulator is installed.
  • This split design of the claimed apparatus allows an optimized heat exchange in the first section resulting in a partial condensation of the cooled compressed gas.
  • the condensated gas in the form of a liquid is separated from the cooled gas in the second section of the inventive apparatus. Further on, this design allows the cleaning of the U-tubes during operation of the apparatus, leading to an improved availability and reduced stand still times.
  • the hot gases for compression are handled on the shell-side, whereas the cooling medium is handled on the tube-side.
  • the piping can be simplified, the costs for manufacturing of the apparatus and the pressure drop during operation are reduced.
  • Such a design can be run at elevated pressures up to 80 bar or even more, although the shell has quite a large volume.
  • Other advantages include a shell circuit that can be inspected and steam or mechanically cleaned.
  • the bundle of tubes can be removed from the front end for cleaning and replacement, if required.
  • This design also provides a multipass tube circuit arrangement with more than one bundle of tubes.
  • the bundle can be removed from one end for cleaning or replacement.
  • the claimed apparatus can be designed as a BEU and/or AEU type according to the TEMA specifications.
  • the separation of liquid and gas inside the shell can be achieved by a liquid accumulator that is situated at the lower side of the shell in the second section. Consequently, easy separation from liquid and compressed gas is achieved.
  • the first section and the second section are separated by at least one baffle plate, wherein this at least one baffle plate is oriented more or less perpendicular to the longitudinal axis of the shell dividing the first section from the second section of the shell.
  • the claimed apparatus is characterized in that the inlet of the shell is located in the first section and the outlet is located in the second section, preferably at the upper side, of the shell. This arrangement allows an improved separation of liquid and gas and a good heat exchanging rate between the compressed gas and the tubes.
  • the liquid accumulator is located at the lower side of the shell so that the liquid that has been separated from the gas can be extracted from the shell supported by the gravity.
  • a demister is installed in the second section of the shell and this demister extends from a baffle plate to the rear end stationary head of the apparatus.
  • This demister may consist of a woven cloth made of steel wires or other metallic steel wires. By the number of meshes per inch of this woven cloth, the maximum size of liquid particles that may enter the outlet of the shell can be limited.
  • the shell is inclined against the horizontal line at an angle between 1° and 5°, preferably between 2° and 3°. This allows that the liquid accumulator is situated at the lowest part point of the shell, thus allowing an easy and gravity-supported extraction of the liquid from the shell.
  • the at least one bundle of tubes is equipped with fin plates that are perpendicular to the longitudinal axis of the tubes.
  • These fin plates are made of a sheet metal that is perforated so that several fin plates can be shifted into the at least one bundle of tubes. These fins improve the heat exchange and serve as a baffle for the compressed gas.
  • These fins can be made of any appropriate material, such as all grades of steel, including stainless steel, or titanium-based material.
  • any appropriate material for the shell, the tubes, the baffle plates and the fins it is possible to make the claimed apparatus resistant to even corrosive compressed gas for a long operating time.
  • a further embodiment of the claimed invention provides a feed distributor between the inlet and the at least one bundle of tubes to make sure that the compressed gas is diverted over the whole length of the bundle of tubes, so that an optimized heat transfer and reduced pressure drops are achieved.
  • a pipe for liquid distribution with perforations and/or spray nozzles is installed between the inlet and the at least one bundle of tubes. Due to the inlet distribution due to this arrangement at the inlet of the compressed gas, a good gas-liquid mixing can be ensured.
  • the liquid and the gas are pressed through the holes together. After having cleaned the tube bundle the liquid is separated from the gas by condensation and collected in the optional boot of the exchanger. This means that during operation of the claimed apparatus cleaning of the tubes can be executed without any interruption. If the pipe for liquid distribution serves to condition the gas, the gas components go into solution with the liquid and then the solution is collected in the optional boot of the exchanger.
  • Figure 1 shows a longitudinal section of a first embodiment of the claimed apparatus comprising a shell 1, a removable front end 3 and a rear end 5.
  • the rear end 5 may be removable, but can also be welded to the shell 1.
  • the front end 3 comprises an inlet 7 and an outlet 9 for a liquid, for example cooling water.
  • the inlet 7 and the outlet 9 are hydraulically connected to a bundle 11 of U-tubes.
  • the tubes themselves do not have a reference number in the drawings. Instead of the U-tube design it is also possible to install a floating end for the tubes (not shown).
  • the claimed apparatus has a AEU-type front head 3, but also many other TEMA-front head types are possible.
  • the tubes comprise a U-bend 13.
  • the front end 3 as well as the hydraulic connection between the front end 3 and the bundle 11 of U-tubes are state of the art and may be designed according to the TEMA Standards.
  • the U-tubes are supported by conventional sliding bars or skid bars (not shown) that transfer the weight of the U-tubes to the shell. Consequently, these details are part of the knowledge of a person skilled in the art and therefore are not described in connection with the claimed invention. For further details we refer to the TEMA Guidelines.
  • the shell 1 comprises an inlet 15 for compressed and hot gas as well as an outlet 17 for compressed and cooled gas. Between the inlet 15 and the bundle 11 of U-tubes a feed distributor plate 19 is installed.
  • This feed distributor plate 19 may be a perforated sheet metal plate or the like.
  • the distributor plate 19 is attached to a wall 22, the latter being for example welded to the shell 1.
  • a baffle plate 21 is installed. This baffle plate 21 is in sealing contact with the the wall 22.
  • the baffle plate 21 is perforated so that it can be shifted in the bundle 11 of U-tubes thus stabilizing and supporting the tubes.
  • the baffle plate 21 comprises at its lower end two sliding bars 24 or skid bars that are in contact with the shell 1. Consequently the bundle 11 of U-tubes is supported by the baffle plate 21 and the bending forces that apply to the tubes are minimized. For further details see Ssection A-A of fig. 1 .
  • the baffle plate 21 does not extend to the lower side of the shell 1, thus allowing the gas that enters the shell at the inlet 15 to flow through the bundle 11 of U-tubes to the outlet 17 of the shell 1.
  • the at least one bundle of U-tubes is equipped with fin plates 35 that are perpendicular to the longitudinal axis of the tubes.
  • These fin plates 35 are made of a sheet metal that is perforated so that several fin plates can be shifted into the at least one bundle 11 of U-tubes. These fins improve the heat exchange and serve as a baffle for the compressed gas.
  • the inlet 15 of the shell 1 is located at a first section (without reference number) of the shell 1 and the outlet 17 is located at a second section (without reference number) of the shell 1.
  • the first section is limited by the first baffle plate 21 and the front end 3 in the longitudinal direction.
  • the second section is limited by a second baffle plate 23 and the rear end 5 of the apparatus. Staring at the inlet 15 the compressed gas flows through the diverter plate 19, the bundle 11 of tubes, a high-capacity demister 25 and finally exits the shell 1 via the outlet 17 as is shown by arrows (without reference numbers) in figure 1 .
  • a liquid accumulator 27 is installed at the lower side of the second section of the shell 1 .
  • the liquid can be extracted from the shell via an outlet pipe 29. If necessary the bottom of the liquid accumulator 27 can be bolted to the liquid accumulator 27 itself, thus allowing to open the liquid accumulator 27.
  • a level sensor 26 in the shell 1 to avoid liquid pass the demistior plate 25. In case the level exceeds a predetermined level the outlet pipe 29 of the liquid accumulator 27 can be opened.
  • FIG 2 a second embodiment is shown with two bundles 11 of U-tubes. This arrangement enables full cross-flow behaviour of the exchanger leading to the possibility of temperature crosses between the hot and the cold side of the exchanger.
  • FIG 3 a third embodiment is shown with a pipe 31 for liquid distribution between the inlet 15 and the bundle 11 of U-tubes. At the lower side of this pipe 31 several spray nozzles 33 are arranged. This arrangement allos to spray a liquid into the hot compressed gas that comes from the inlet 15 before entering the feed distributor plate 19, allowing a good mixing of the gas and the liquid. Together with the gas the liquid is pressed through the holes of the distributor plate 19 washing the tubes of the bundle 11 and is collected in an optional boot of the exchanger (not shown).
  • the gas components go into solution with the liquid and then the solution is collected in the optional boot of the exchanger.
  • a single spray nozzle (not shown) in fig. 3 ) may be located for example centrally in the inlet 15.
  • the claimed invention combines the heat exchange and liquid separation in one shell 1 for dirty gases and/or high pressures.
  • the claimed arrangement allows crossflow conditions in the heat exchanger.
  • An intrinsic safe design is possible even at high pressures. Furtheron, an advanced online cleaning option is given and the possibility of gas enrichment with liquid or removal of gas components is available.

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)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
EP10002157A 2010-03-03 2010-03-03 Appareil d'échangeur thermique et de séparation de liquides Withdrawn EP2365269A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP10002157A EP2365269A1 (fr) 2010-03-03 2010-03-03 Appareil d'échangeur thermique et de séparation de liquides
PCT/IB2011/000268 WO2011107841A1 (fr) 2010-03-03 2011-02-11 Appareil d'échange de chaleur et de séparation de liquides
TW100106965A TW201144736A (en) 2010-03-03 2011-03-02 Heat exchanging and liquid separation apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10002157A EP2365269A1 (fr) 2010-03-03 2010-03-03 Appareil d'échangeur thermique et de séparation de liquides

Publications (2)

Publication Number Publication Date
EP2365269A1 true EP2365269A1 (fr) 2011-09-14
EP2365269A8 EP2365269A8 (fr) 2011-12-28

Family

ID=42671705

Family Applications (1)

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EP10002157A Withdrawn EP2365269A1 (fr) 2010-03-03 2010-03-03 Appareil d'échangeur thermique et de séparation de liquides

Country Status (3)

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EP (1) EP2365269A1 (fr)
TW (1) TW201144736A (fr)
WO (1) WO2011107841A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014165183A3 (fr) * 2013-03-13 2015-05-07 Chevron U.S.A. Inc. Ensemble de production de vapeur pour des fluides pollués ou des fluides comportant des impuretés
EP2908081A1 (fr) 2014-02-14 2015-08-19 Alstom Technology Ltd Échangeur de chaleur et procédé de désembuage
CN105436543A (zh) * 2015-11-30 2016-03-30 茂名重力石化机械制造有限公司 换热器隔膜密封焊缝切除机及切除方法
EP3097971A1 (fr) * 2015-05-25 2016-11-30 Parker Hannifin Manufacturing S.r.l. Séchoir à gaz comprimé amélioré
CN106422531A (zh) * 2016-08-31 2017-02-22 中国电力工程顾问集团中南电力设计院有限公司 换热器内置的卧式气水分离器及其气水分离方法
US11371787B2 (en) 2015-12-25 2022-06-28 Kobelco Compressors Corporation Gas cooler
US11486615B2 (en) 2017-03-31 2022-11-01 Carrier Corporation Flow balancer and evaporator having the same

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1411472A (en) * 1973-01-06 1975-10-29 Clarke Chapman Ltd Method of and apparatus for heat exchange
US3965975A (en) * 1974-08-21 1976-06-29 Stratford Engineering Corporation Baffling arrangements for contactors
US4843837A (en) * 1986-02-25 1989-07-04 Technology Research Association Of Super Heat Pump Energy Accumulation System Heat pump system
WO1999032837A1 (fr) * 1997-12-19 1999-07-01 Exxonmobil Upstream Research Company Elements de processus, reservoirs et conduits servant a contenir et a transporter des fluides a des temperatures cryogeniques
US6095238A (en) * 1997-11-26 2000-08-01 Kabushiki Kaisha Toshiba Feed water heater
WO2006065963A2 (fr) 2004-12-17 2006-06-22 Api Heat Transfer, Inc. Post-refroidisseur d'air comprime a separateur d'humidite integre
WO2009070129A2 (fr) * 2007-11-30 2009-06-04 Evrovartrade D.O.O. Échangeur de chaleur à condensation combiné
EP2241848A2 (fr) * 2009-04-15 2010-10-20 TLV Co., Ltd. Échangeur de chaleur

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CH309301A (de) * 1953-02-28 1955-08-31 Sulzer Ag Doppelwandiger Gaskühler.
US3503440A (en) * 1968-12-23 1970-03-31 Combustion Eng Formed plate tube support
US4174273A (en) * 1975-09-09 1979-11-13 Spie-Batignolles Separating exchangers
US4193443A (en) * 1977-11-28 1980-03-18 Orion Machinery Co., Ltd. Heat exchanger for cooling system compressed air dehumidifiers
JPS5677692A (en) * 1979-11-27 1981-06-26 Toyo Eng Corp Heat exchanger
JPS61262567A (ja) * 1985-05-17 1986-11-20 株式会社荏原製作所 冷凍機用蒸発器
FR2583502B1 (fr) * 1985-06-18 1989-11-03 Westinghouse Electric Corp Generateur de vapeur muni de barres antivibrations souples
DE19722360A1 (de) * 1997-05-28 1998-12-03 Bayer Ag Verfahren und Vorrichtung zur Verbesserung des Wärmeüberganges
DE10001112A1 (de) * 2000-01-13 2001-07-19 Alstom Power Schweiz Ag Baden Kühlluftkühler für eine Gasturbinenanlage sowie Verwendung eines solchen Kühlluftkühlers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1411472A (en) * 1973-01-06 1975-10-29 Clarke Chapman Ltd Method of and apparatus for heat exchange
US3965975A (en) * 1974-08-21 1976-06-29 Stratford Engineering Corporation Baffling arrangements for contactors
US4843837A (en) * 1986-02-25 1989-07-04 Technology Research Association Of Super Heat Pump Energy Accumulation System Heat pump system
US6095238A (en) * 1997-11-26 2000-08-01 Kabushiki Kaisha Toshiba Feed water heater
WO1999032837A1 (fr) * 1997-12-19 1999-07-01 Exxonmobil Upstream Research Company Elements de processus, reservoirs et conduits servant a contenir et a transporter des fluides a des temperatures cryogeniques
WO2006065963A2 (fr) 2004-12-17 2006-06-22 Api Heat Transfer, Inc. Post-refroidisseur d'air comprime a separateur d'humidite integre
WO2009070129A2 (fr) * 2007-11-30 2009-06-04 Evrovartrade D.O.O. Échangeur de chaleur à condensation combiné
EP2241848A2 (fr) * 2009-04-15 2010-10-20 TLV Co., Ltd. Échangeur de chaleur

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014165183A3 (fr) * 2013-03-13 2015-05-07 Chevron U.S.A. Inc. Ensemble de production de vapeur pour des fluides pollués ou des fluides comportant des impuretés
EP2908081A1 (fr) 2014-02-14 2015-08-19 Alstom Technology Ltd Échangeur de chaleur et procédé de désembuage
EP3097971A1 (fr) * 2015-05-25 2016-11-30 Parker Hannifin Manufacturing S.r.l. Séchoir à gaz comprimé amélioré
CN105436543A (zh) * 2015-11-30 2016-03-30 茂名重力石化机械制造有限公司 换热器隔膜密封焊缝切除机及切除方法
CN105436543B (zh) * 2015-11-30 2018-04-20 茂名重力石化装备股份公司 换热器隔膜密封焊缝切除机及切除方法
US11371787B2 (en) 2015-12-25 2022-06-28 Kobelco Compressors Corporation Gas cooler
CN106422531A (zh) * 2016-08-31 2017-02-22 中国电力工程顾问集团中南电力设计院有限公司 换热器内置的卧式气水分离器及其气水分离方法
CN106422531B (zh) * 2016-08-31 2021-10-15 中国电力工程顾问集团中南电力设计院有限公司 换热器内置的卧式气水分离器及其气水分离方法
US11486615B2 (en) 2017-03-31 2022-11-01 Carrier Corporation Flow balancer and evaporator having the same

Also Published As

Publication number Publication date
EP2365269A8 (fr) 2011-12-28
WO2011107841A1 (fr) 2011-09-09
TW201144736A (en) 2011-12-16

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