EP0246942B1 - Rohrbündelwärmetauscher mit doppelwandigem Rohrboden - Google Patents

Rohrbündelwärmetauscher mit doppelwandigem Rohrboden Download PDF

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Publication number
EP0246942B1
EP0246942B1 EP87400982A EP87400982A EP0246942B1 EP 0246942 B1 EP0246942 B1 EP 0246942B1 EP 87400982 A EP87400982 A EP 87400982A EP 87400982 A EP87400982 A EP 87400982A EP 0246942 B1 EP0246942 B1 EP 0246942B1
Authority
EP
European Patent Office
Prior art keywords
tubes
heat exchange
plates
plate
rigid
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
EP87400982A
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English (en)
French (fr)
Other versions
EP0246942A1 (de
Inventor
Gilbert Duponteil
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.)
Babcock Entreprise
Original Assignee
Babcock Entreprise
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 Babcock Entreprise filed Critical Babcock Entreprise
Priority to AT87400982T priority Critical patent/ATE63636T1/de
Publication of EP0246942A1 publication Critical patent/EP0246942A1/de
Application granted granted Critical
Publication of EP0246942B1 publication Critical patent/EP0246942B1/de
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
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/0229—Double end plates; Single end plates with hollow spaces

Definitions

  • the invention relates to heat exchangers of the type comprising a calender provided at each of its ends with a support for a bundle of heat exchange tubes between the fluid to be cooled which circulates in said tubes and a cooling fluid which circulates around said tubes in the grille.
  • the plate which fulfills the function of supporting the tubes must also withstand the high vapor pressure on the side of the shell; it must therefore have a significant thickness.
  • the inlet plate, in contact with the tubes throughout its thickness is strongly heated by gases and is subjected to considerable thermal gradients between its two faces; there may also be significant corrosion in the passage of the tubes.
  • the object of the present invention is to provide a simpler construction of the ends of said heat exchanger ensuring better circulation of the cooling fluid without elevation of the thermal gradients on the thick plate and avoiding deformations of the thin plate, in particular at the level of the 'attaches tubes.
  • the heat exchanger which is the subject of the invention is characterized in that the thin plate closes the shell and is used for fixing the tubes, that the other plate is fixed to the shell at a certain distance from its closed end, and that the portions of rigid tubes connect the two plates by forming spacers and are provided with orifices making the chamber defined by the two plates communicate with said annular spaces.
  • FIG. 1 there is shown a tubular exchanger composed of an elongated calender 1 provided in the vicinity of its ends with two plates 2 and 3 and housing a bundle of tubes such as 4.
  • tubes 4 cross the plates 2 and 3 with play and extend to their fixing end in two additional thin plates 5 and 6 which close the grille, with the exception of the inlet and outlet passages of the tubes 4.
  • Tubes 7-8 forming spacers between the thin and thick plates concentrically surround each of the tubes 4 at its two end portions comprised between the pairs of plates 2-5 on the one hand, 3-6 on the other.
  • the annular gap between the tubes 4 and the tubes 7 and 8 has openings 70-80 arranged near the plates 5-6 and 2-3, so as to ensure proper cooling.
  • Figure 2 shows how the tube sections 7-8 are fixed at their two ends to the plates 2-3 and 5-6, by weld beads 20, 22 and how the tubes 4 are fixed to the plates 5-6 for weld beads 24 which join them to the adjacent ends of the sections of tubes 7-8.
  • Other conventional means could possibly be used to fix the tube sections 7, 8 to the plates 2-3.
  • the plates 2 and 3 have a large thickness, for example 250 mm, sufficient to withstand the background effect created by the pressure of the fluid contained in the calender, while the plates 5 and 6 have for example a thickness of 10 to 20 mm and are used to support the tubes which are welded to said thin plates.
  • the diameter of the exchanger is for example 900 mm.
  • the plates 5-6 are provided with a peripheral mounting flange 51-61.
  • the cooling fluid enters through a conduit 9 in the interval (having for example 150 mm in height) between the plates 2 and 5 (shown at the bottom of FIG. 1, the exchanger here being assumed to be vertical ).
  • the tubes 7 have openings such as 70 so that the fluid penetrates, through the annular gap 30 (from 3 to 10 mm thick for example) comprised between the tubes 4 and 7, in the part of the calender comprised between plates 2 and 3. Its circulation is ensured by a pump or by effect thermosyphon.
  • the gas to be cooled enters the tubes 4 at the level of the plate 5 and the water is vaporized on contact with the plate 5 thus heated by the gas.
  • the steam enters the tubes 7 through the openings 70 and the water-steam mixture cools the tubes 4.
  • the cooled gases are evacuated by the tubes 4 through the plate 6, while the heated water-vapor mixture is evacuated by the annular gap between the tubes 4 and 8, the openings 80 of the tubes 8 and an outlet conduit 10.
  • the thick plates are not subjected to thermal gradients, the water-vapor mixture prevailing (at temperatures which can reach 300 to 350 ° C) on their two faces and no contact with the tubes where the gas to be cooled circulates (which can have temperatures ranging from 600 to 1100 ° C under pressures of 200 bar) not existing.
  • the tubes are cooled over their entire length, including when they pass through the thick plates so that the risk of corrosion or mechanical weakening by the gas is partially eliminated.
  • the double plate structure is essential at the entry, while it can be replaced at the exit by a structure classic in some cases.
  • the invention applies to all types of tube bundles.

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)
  • Tubes (AREA)

Claims (4)

1. Wärmetauscher mit einem Mantelgehäuse, das an jedem seiner Enden mit einem Träger eines Rohrbündels zum Wärmetausch zwischen dem abzukühlenden fliessfähigen Medium, das in den besagten Rohren fliesst und einem fliessfähigen Kühlmittel, das um die besagten Rohre herum in dem Gehäuse strömt, versehen ist, wobei wenigstens der Einlassträger der Rohre durch zwei Platten gebildet wird, von denen die eine verhältnismässig dünn, während die andere viel dicker und steifer ist, und mit steifen Rohrteilen, die die entsprechenden Endbereiche der Rohre konzentrisch umgeben und Ringräume, die mit einer durch die beiden Platten begrenzten Kammer in Verbindung stehen, bilden, wobei die besagten Ringräume in das Mantelgehäuse durch die innere Platte hindurch münden und wobei die besagten Rohre diese Platte berührungslos durchsetzen, gekennzeichnet durch die Tatsache, dass die dünne Platte (5) das Mantelgehäuse (1) abschliesst und zur Befestigung der Rohre (4) dient, dass die andere Platte (2) an dem Gehäuse in einem bestimmten Abstand von seinem geschlossenen Ende befestigt ist und dass die steifen Rohrteile (7) die beiden Platten unter Bildung von Abstandshaltern verbinden und mit die besagte Kammer mit den besagten Ringräumen in Verbindung setzenden Oeffnungen (70) versehen sind.
2. Wärmetauscher nach Anspruch 1, gekennzeichnet durch eine zusätzliche Zufuhr (11) des fliessfähigen Kühlmittels in das Gehäuse
3. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass der Auslassträger der Rohre wie der Einlassträger ausgelegt ist, wobei eine Auslassleitung für das fliessfähige Kühlmittel (10) an die zwischen den beiden Platten (3, 6) des besagten Auslassträgers angeschlossen ist und dass eine zusätzliche Zufuhr (11) des fliessfähigen Kühlmittels und eine zusätzliche Dampfabfuhr (12) im Bereich der dicken Platten (2,3) in dem zwischen den dicken Platten liegenden Gehäuseabschnitt vorgesehen sind.
4. Wärmetauscher nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass die dünne(n) Platte(n) (5, 6) mit einem Einbauumfangsflansch (51, 61) versehen ist bzw. sind.
EP87400982A 1986-05-21 1987-04-29 Rohrbündelwärmetauscher mit doppelwandigem Rohrboden Expired - Lifetime EP0246942B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87400982T ATE63636T1 (de) 1986-05-21 1987-04-29 Rohrbuendelwaermetauscher mit doppelwandigem rohrboden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8607193 1986-05-21
FR8607193A FR2599133B1 (fr) 1986-05-21 1986-05-21 Echangeur de chaleur tubulaire a double plaque de support du faisceau de tube

Publications (2)

Publication Number Publication Date
EP0246942A1 EP0246942A1 (de) 1987-11-25
EP0246942B1 true EP0246942B1 (de) 1991-05-15

Family

ID=9335416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87400982A Expired - Lifetime EP0246942B1 (de) 1986-05-21 1987-04-29 Rohrbündelwärmetauscher mit doppelwandigem Rohrboden

Country Status (6)

Country Link
US (1) US4770239A (de)
EP (1) EP0246942B1 (de)
JP (1) JPS62288496A (de)
AT (1) ATE63636T1 (de)
DE (1) DE3770047D1 (de)
FR (1) FR2599133B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19714423C2 (de) * 1997-04-08 2003-05-08 Schnabel Gmbh & Co Kg Dr Rohrbündelwärmeaustauscher

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3715712C1 (de) * 1987-05-12 1988-07-21 Borsig Gmbh Waermetauscher insbesondere zum Kuehlen von Spaltgas
DE3820494C2 (de) * 1988-06-16 1994-05-19 Balcke Duerr Ag Wärmetauscher
DE4404068C1 (de) * 1994-02-09 1995-08-17 Wolfgang Engelhardt Wärmetauscher
DE4407594A1 (de) * 1994-03-08 1995-09-14 Borsig Babcock Ag Wärmetauscher zum Kühlen von heißem Reaktionsgas
DE4445687A1 (de) * 1994-12-21 1996-06-27 Borsig Babcock Ag Wärmetauscher zum Kühlen von Spaltgas
DE19501422C2 (de) * 1995-01-19 2002-03-28 Borsig Gmbh Gekühltes Übergangsstück zwischen einem Wärmetauscher und einem Reaktor
JP4451520B2 (ja) * 1999-11-08 2010-04-14 株式会社日本触媒 竪型熱交換器
KR100705482B1 (ko) * 2000-11-10 2007-04-10 한라공조주식회사 열교환기
US8186423B2 (en) * 2004-05-25 2012-05-29 Shell Oil Company Apparatus for cooling a hot gas
JP4966834B2 (ja) * 2007-11-30 2012-07-04 成雄 安藤 高圧均質化装置の冷却装置
US8672021B2 (en) * 2010-02-12 2014-03-18 Alfred N. Montestruc, III Simplified flow shell and tube type heat exchanger for transfer line exchangers and like applications
CN102997217B (zh) * 2012-12-12 2014-07-09 江苏焱鑫科技股份有限公司 一种立式废热锅炉挠性管板的防护衬里结构
CN105115324A (zh) * 2015-09-15 2015-12-02 温州天旭机械设备有限公司 一种列管式冷却器
CN108362155A (zh) * 2018-02-08 2018-08-03 王萍 一种基于热交换技术的工业废气热能二次利用装置

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
US1809915A (en) * 1930-08-13 1931-06-16 Westinghouse Electric & Mfg Co Condenser
US2145877A (en) * 1935-08-07 1939-02-07 Houdry Process Corp Apparatus for thermal control of contact masses
DE684736C (de) * 1938-02-25 1939-12-04 Atlas Werke Ag Roehrenwaermeaustauscher mit zwei im Abstand voneinander angeordneten Abdichtungsrohrboeden
US3356135A (en) * 1964-12-24 1967-12-05 Robert K Sayre Once-through steam generator with means to provide saturated feed water
DE1817043A1 (de) * 1968-03-30 1970-10-08 Basf Ag Rohrboden fuer Heissgaskuehler fuer hohe Differenzdruecke
NL6919308A (de) * 1968-12-27 1970-06-30
US3907026A (en) * 1973-08-21 1975-09-23 Westinghouse Electric Corp Double tube heat exchanger
NL159782B (nl) * 1976-10-21 1979-03-15 Neratoom Pijpenplaat die twee met tussenruimte opgestelde plaat- vormige delen omvat; warmtewisselaar die ten minste een dergelijke pijpenplaat omvat.
US4100227A (en) * 1977-04-04 1978-07-11 The Dow Chemical Company Transparent impact-resistant polystyrene structure
GB1586935A (en) * 1977-06-28 1981-03-25 Westinghouse Electric Corp Heat exchanger with double wall tubes and three tube sheets
NL7905640A (nl) * 1978-09-14 1980-03-18 Borsig Gmbh Van een pijpenbundel voorziene warmtewisselaar.
JPS6042843B2 (ja) * 1979-07-30 1985-09-25 東洋エンジニアリング株式会社 廃熱ボイラ−
FR2499212A1 (fr) * 1981-02-02 1982-08-06 Commissariat Energie Atomique Dispositif de protection de la plaque tubulaire a l'extremite chaude d'un echangeur de chaleur vertical

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19714423C2 (de) * 1997-04-08 2003-05-08 Schnabel Gmbh & Co Kg Dr Rohrbündelwärmeaustauscher

Also Published As

Publication number Publication date
US4770239A (en) 1988-09-13
FR2599133A1 (fr) 1987-11-27
JPH0456238B2 (de) 1992-09-07
JPS62288496A (ja) 1987-12-15
DE3770047D1 (de) 1991-06-20
EP0246942A1 (de) 1987-11-25
FR2599133B1 (fr) 1990-09-21
ATE63636T1 (de) 1991-06-15

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