EP0810414B1 - Wärmetauscher zum Kühlen von Spaltgas - Google Patents
Wärmetauscher zum Kühlen von Spaltgas Download PDFInfo
- Publication number
- EP0810414B1 EP0810414B1 EP97107608A EP97107608A EP0810414B1 EP 0810414 B1 EP0810414 B1 EP 0810414B1 EP 97107608 A EP97107608 A EP 97107608A EP 97107608 A EP97107608 A EP 97107608A EP 0810414 B1 EP0810414 B1 EP 0810414B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- recess
- cooling
- tube
- water chamber
- outer tube
- 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
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G9/002—Cooling of cracked gases
-
- 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
- F28D7/10—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 one within the other, e.g. concentrically
- F28D7/106—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 one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
-
- 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
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
- F28F9/0221—Header boxes or end plates formed by stacked elements
-
- 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
Definitions
- the invention relates to a heat exchanger for cooling Cracked gas.
- the cracked gas is released by a thermal cracking of Hydrocarbons produced in a cracking furnace.
- These cracking furnaces are equipped with a number of canned pipes heated from the outside, through which the hydrocarbons used with the addition of Steam can be carried.
- the cracked gas generated leaves the Canned tubes with a temperature of about 800 to 850 ° C and must to stabilize its molecular composition very much be cooled down quickly. This takes place in cracked gas coolers a heat transfer from the fission gas to evaporating, below high pressure water.
- the invention has for its object such To design heat exchangers so that a small pipe spacing can be adhered to and that improved repair and There is a possibility of maintenance.
- the individual Sections of the strip-shaped piece with each the double tube element in question are welded, whereby there is access from all sides. It can in In extreme cases, the length of a section is the outside diameter of the Correspond to the outer tube. The pipes can be done this way be as close as possible.
- the sections for formation of a rigid module connected together. favored the inventive division of the strip-shaped Piece into individual sections in that each Double pipe element with its own feed and discharge for the Coolant is provided. This has the further advantage themselves that the sections together with the concerned double pipe element separated and for repair or Maintenance purposes.
- a connection between the sections can be a welding, a screw or a Serve connector that are only in the Extend the longitudinal direction of the cooling tubes. This connection leaves separate again later in a simple manner.
- a cracking furnace is implemented by Hydrocarbons generate a fission gas with water vapor.
- the cracking furnace is provided with canned tubes 2 which are heated from the outside and are flowed through by the feed.
- the can 2 fission gas leaving at a temperature of 800 to 850 ° C enters directly into a cracked gas cooler 3, which in is located in the immediate vicinity above the cracking furnace.
- this cracked gas cooler 3 is the molecular composition of the Fission gas through a abrupt cooling in the heat exchange with evaporating water under high pressure stabilized.
- the cracked gas cooler 3 consists of several cooling tubes 4, so are arranged in a row next to each other that each Cooling tube 4 is assigned to a can 2 and in the latter axial extension.
- the inside diameter of The can 2 and the cooling tube 4 are, as shown, customary same size.
- the cooling pipes 4 open into a gas manifold 5 on.
- Each cooling tube 4 is ring-shaped Intermediate space surrounded by an outer tube 6. At both ends the outer tubes 6 are water chambers 7, 8 for the supply and Removal of the cooling medium is provided.
- each can 2 is widened like a fork.
- an inner, the tube section 9 forming the extension of the can 2 and an outer tube section 10, both at one end are interconnected.
- the outer tube section 10 is on the lower water chamber 7 welded.
- the inner one Pipe section 9 of the canned tube 2 is small axial distance from the cooling tube 4.
- the gap between the inner pipe section 9 and the outer Pipe section 10 is made of a layer 17 filled with heat-insulating material.
- the water chamber 7, 8 is made of a solid, strip-shaped Manufactured piece, which in individual sections 7.1, 7.2, 7.3, 8.1, 8.2, 8.3 is divided. Sections 7.1, 7.2, 7.3, 8.1, 8.2, 8.3 each have a front wall 20, a rear wall 21 and two side walls 22. In each section 7.1, 7.2, 7.3, 8.1, 8.2, 8.3 is circular in cross section Recess 11 incorporated, each of a cooling tube 4th assigned.
- the outer tube 6 is on the can 2 opposite side welded to the water chamber 7. there the inside diameter of the Outer tube 6 corresponds to the diameter of the recess 11. The recess 11 can consistently this diameter exhibit. In the middle area, the recess 11 can also be widened, the diameter of the recess 11 being approximately by the width of the space between the cooling tube 4 and the outer tube 6 can be larger than the inner diameter of the Outer tube 6.
- the depression 11 is so deep that the water chamber 7, 8 forming piece incorporated that an annular bottom 12 with a small remaining wall thickness remains.
- this floor 12 is the cooling tube 4 welded.
- the area of the annular Bottom 12 is limited by the outer diameter of the Cooling tube 4 and the diameter of the recess 11th
- Each depression 11 opens out at the level of the bottom 12 preferably tangentially into a bore 13.
- the holes 13 are each via a connecting piece 14 with a Supply line 15 connected to the cooling medium.
- the Coolant passes through the bore 13 at high speed into the recess 11 and generates a rotating flow around the cooling tube 4. This flow ensures good cooling of the bottom 12 of the recess 11 and thereby prevents one Deposition of particles on the floor 12, which leads to a harmful local overheating.
- the depression 11 is provided with a further bore 16, which is led to the outside at the level of the bottom 12. Through this further bore 16 can the particles that are in the Well 11 are and with the flow of the cooling medium rotate during the operation of the cracked gas cooler 3 be removed.
- the others are Bores 16 connected to a line 18.
- This line 18 is equipped with a drain valve, not shown. By a brief, sudden opening of the drain valve can remove cooling medium with particles contained therein become.
- the holes 13, 16 described can be used as Inspection openings can be used by passing through them an operational shutdown, an endoscope in the recess 11 is introduced. With the help of these endoscopes, the Check the condition of the recess 11.
- the water chamber 7, 8 forming strip-shaped piece from individual sections 7.1, 7.2, 7.3, 8.1, 8.2, 8.3, each section with a single Well 11 provided and with a single cooling tube 4 and Outer tube 6 is connected.
- the individual sections 7.1, 7.2, 7.3, 8.1, 8.2, 8.3 are tight with the side walls 22 side by side and are stiff together Module connected.
- Sections 7.1, 7.2, 7.3, 8.1, 8.2, 8.3 can be used together screwed or by welding with the help of welds 19 of 5 mm thickness, for example, are connected to one another.
- connection of sections 7.1, 7.2, 7.3, 8.1, 8.2, 8.3 can be separated afterwards by e.g. B. the welds 19th be severed.
- Each connector consists of a projection 23, the centered on a side wall 22 of each section 7.1, 7.2, 7.3, 8.1, 8.2, 8.3 is formed and in the longitudinal direction of the Cooling tubes 4 extends over the entire height of the section.
- the projection 23 engages in one of the contours of the projection 23 adapted recess 24 a in the adjacent side wall 22 of the following section is introduced.
- a shift in the longitudinal direction of the cooling tubes 4 is excluded that the cooling tubes outside of the sections 7.1, 7.2, 7.3, 8.1, 8.2, 8.3 Water chamber 7, 8 are fixed.
Landscapes
- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Hydrogen, Water And Hydrids (AREA)
Description
- Fig. 1
- perspektivisch einen Spaltgaskühler,
- Fig. 2
- den Längsschnitt durch einen Spaltgaskühler im Bereich der unteren Wasserkammer,
- Fig. 3
- die Draufsicht auf Fig. 2 und
- Fig. 4
- die Draufsicht auf Fig. 2 gemäß einer anderen Ausführungsform.
Claims (3)
- Wärmetauscher zum Kühlen von Spaltgas mit mehreren Kühlrohren (4), die jeweils unter Bildung eines von einem Kühlmedium durchströmten Zwischenraumes von einem Außenrohr (6) umgeben sind, wobei Kühlrohr (4) und Außenrohr (6) an beiden Enden an je eine wasserkammer (7, 8) zur Zuführung und Abführung des Kühlmediums angeschweißt sind, wobei die Wasserkammer (7, 8) aus einem massiven, streifenförmigen Stück besteht, in das in einem Abstand voneinander kreisförmige Vertiefungen (11) eingebracht sind, wobei jede Vertiefung (11) ein einziges Kühlrohr (4) umgibt, der Durchmesser der Vertiefung (11) gleich dem oder größer als der Innendurchmesser des Außenrohres (6) ist und der Innendurchmesser des Außenrohres (6) mit dem Durchmesser der Vertiefung (11) an der Einschweißstelle des Außenrohres (6) an die Wasserkammer (7, 8) übereinstimmt, wobei die Vertiefung (11) im Bereich der Rohrenden der Kühlrohre (4) einen dünnen, ringförmigen Boden (12) mit einer geringen Restwanddicke aufweist, in den das Kühlrohr (4) eingeschweißt ist, wobei zur Zuführung bzw. Abführung des Kühlmediums in jede Vertiefung (11) eine durch die Seitenwand der Wasserkammer (7, 8) geführte Bohrung (13) einmündet, wobei das die wasserkammer (7, 8) bildende streifenförmige Stück aus einzelnen trennbar miteinander verbundenen Abschnitten (7.1, 7.2, 7.3, 8.1, 8.2, 8.3) besteht, in die jeweils eine einzige, ein Kühlrohr (4) umgebende Vertiefung (11) eingebracht ist und wobei sich die Verbindung zwischen den Abschnitten (7.1, 7.2, 7.3, 8.1, 8.2, 8.3) in Längsrichtung der Kühlrohre (4) erstreckt.
- Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß die Verbindung aus jeweils zwei Schweißnähten (19) besteht, die in den Stoßstellen der Vorderwände (20) und der Rückwände (21) benachbarter Abschnitten (7.1, 7.2, 7.3, 8.1, 8.2, 8.3) verlaufen.
- Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß die Verbindung aus einem Vorsprung (23) besteht, der an eine Seitenwand (22) eines Abschnittes (7.1, 7.2, 7.3, 8.1, 8.2, 8.3) angeformt ist und der in eine dem Vorsprung (23) angepaßte Ausnehmung (24) eingreift, die in der benachbarten Seitenwand (22) des folgenden Abschnittes (7.1, 7.2, 7.3, 8.1, 8.2, 8.3) eingebracht ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996122139 DE19622139A1 (de) | 1994-12-21 | 1996-06-01 | Wärmetauscher zum Kühlen von Spaltgas |
DE19622139 | 1996-06-01 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0810414A2 EP0810414A2 (de) | 1997-12-03 |
EP0810414A3 EP0810414A3 (de) | 1999-06-02 |
EP0810414B1 true EP0810414B1 (de) | 2002-04-10 |
Family
ID=7795951
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97107608A Expired - Lifetime EP0810414B1 (de) | 1996-06-01 | 1997-05-09 | Wärmetauscher zum Kühlen von Spaltgas |
Country Status (6)
Country | Link |
---|---|
US (1) | US5813453A (de) |
EP (1) | EP0810414B1 (de) |
JP (1) | JP4140068B2 (de) |
AT (1) | ATE216060T1 (de) |
DE (1) | DE59706936D1 (de) |
ES (1) | ES2175214T3 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2151652A2 (de) | 2008-08-08 | 2010-02-10 | Borsig GmbH | Verbindungsstück zwischen einem Spaltrohr und einem Kühlrohr sowie ein Verfahren zum Verbinden eines Spaltrohres mit einem Kühlrohr |
CN101802137A (zh) * | 2007-10-02 | 2010-08-11 | 埃克森美孚化学专利公司 | 用于冷却热解排放物的方法和设备 |
EP2278248A2 (de) | 2009-06-17 | 2011-01-26 | Borsig GmbH | Wärmetauscher zum Kühlen von Spaltgas |
EP4122594A1 (de) | 2021-07-23 | 2023-01-25 | Borsig GmbH | Wärmetauscher zum kühlen von spaltgas |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19833004A1 (de) * | 1998-07-22 | 2000-01-27 | Borsig Gmbh | Wärmetauscher zum Kühlen eines heißen Prozeßgases |
DE19847770A1 (de) * | 1998-10-16 | 2000-04-20 | Borsig Gmbh | Wärmetauscher mit einem Verbindungsstück |
NL1014916C2 (nl) * | 2000-04-11 | 2001-10-12 | Bronswerk Heat Transfer Bv | Warmtewisselaar. |
EP1298404B1 (de) * | 2001-09-26 | 2005-04-06 | Bronswerk Heat Transfer B.V. | Wärmetauscher |
ITMI20010594U1 (it) * | 2001-11-12 | 2003-05-12 | Olmi Spa | Giunzione di un tubo non raffreddato e di un tubo raffreddato, in particolare per scambiatori di calore a doppio tubo |
KR100541559B1 (ko) * | 2004-01-29 | 2006-01-11 | 삼성전자주식회사 | 글랜드부를 갖는 배치형 증착 장비 |
ES2331082T3 (es) * | 2004-05-25 | 2009-12-21 | Shell Internationale Research Maatschappij B.V. | Aparato para refrigerar un medio gaseoso caliente. |
DE102006055973A1 (de) * | 2006-11-24 | 2008-05-29 | Borsig Gmbh | Wärmetauscher zur Kühlung von Spaltgas |
US7802985B2 (en) * | 2007-10-25 | 2010-09-28 | Alan Cross | Direct fired heater utilizing particulates as a heat transfer medium |
CA2921016A1 (en) | 2016-02-18 | 2017-08-18 | Leslie Wilfred Benum | Cracked gas quench heat exchanger using heat pipes |
IT201800004827A1 (it) * | 2018-04-24 | 2019-10-24 | Scambiatore di calore a doppio tubo e relativo metodo di fabbricazione | |
IT201800005676A1 (it) | 2018-05-24 | 2019-11-24 | Parete di testa per scambiatore di calore e relativo scambiatore di calore a fascio tubiero |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4445687A1 (de) * | 1994-12-21 | 1996-06-27 | Borsig Babcock Ag | Wärmetauscher zum Kühlen von Spaltgas |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3129931A (en) * | 1961-06-27 | 1964-04-21 | Kenneth W Stookey | Recuperator |
DE1817043A1 (de) * | 1968-03-30 | 1970-10-08 | Basf Ag | Rohrboden fuer Heissgaskuehler fuer hohe Differenzdruecke |
US3791326A (en) * | 1970-07-07 | 1974-02-12 | Dunham Bush Inc | Method of forming a modular header for a tube within a tube heat exchanger |
DE2412421A1 (de) * | 1974-03-15 | 1975-09-25 | Schmidt Sche Heissdampf | Waermeaustauscher mit doppelrohrelementen |
DE2708696A1 (de) * | 1977-03-01 | 1978-09-07 | Deggendorfer Werft Eisenbau | Mehrschichtiger rohrboden fuer waermetauscher |
AT361953B (de) * | 1979-07-10 | 1981-04-10 | Borsig Gmbh | Rohrbuendel-waermeaustauscher |
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− |
DE3411795A1 (de) * | 1984-03-30 | 1985-10-03 | Borsig Gmbh, 1000 Berlin | Verfahren zum betreiben von rohrbuendelwaermeaustauschern zum kuehlen von gasen |
DE3533219C1 (de) * | 1985-09-18 | 1986-11-13 | Borsig Gmbh, 1000 Berlin | Rohrbuendelwaermetauscher |
DE3715712C1 (de) * | 1987-05-12 | 1988-07-21 | Borsig Gmbh | Waermetauscher insbesondere zum Kuehlen von Spaltgas |
DE3930205A1 (de) * | 1989-09-09 | 1991-03-14 | Borsig Babcock Ag | Rohrbuendel-waermetauscher |
DE4000527A1 (de) * | 1990-01-10 | 1991-07-11 | Borsig Babcock Ag | Waermetauscher zum kuehlen von heissem reaktionsgas |
US5425415A (en) * | 1993-06-15 | 1995-06-20 | Abb Lummus Crest Inc. | Vertical heat exchanger |
-
1997
- 1997-04-03 US US08/834,735 patent/US5813453A/en not_active Expired - Lifetime
- 1997-04-25 JP JP12337597A patent/JP4140068B2/ja not_active Expired - Lifetime
- 1997-05-09 AT AT97107608T patent/ATE216060T1/de active
- 1997-05-09 DE DE59706936T patent/DE59706936D1/de not_active Expired - Lifetime
- 1997-05-09 EP EP97107608A patent/EP0810414B1/de not_active Expired - Lifetime
- 1997-05-09 ES ES97107608T patent/ES2175214T3/es not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4445687A1 (de) * | 1994-12-21 | 1996-06-27 | Borsig Babcock Ag | Wärmetauscher zum Kühlen von Spaltgas |
EP0718579B1 (de) * | 1994-12-21 | 1999-11-10 | Borsig GmbH | Wärmetauscher zum Kühlen von Spaltgas |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101802137A (zh) * | 2007-10-02 | 2010-08-11 | 埃克森美孚化学专利公司 | 用于冷却热解排放物的方法和设备 |
CN101802137B (zh) * | 2007-10-02 | 2014-04-09 | 埃克森美孚化学专利公司 | 用于冷却热解排放物的方法和设备 |
EP2151652A2 (de) | 2008-08-08 | 2010-02-10 | Borsig GmbH | Verbindungsstück zwischen einem Spaltrohr und einem Kühlrohr sowie ein Verfahren zum Verbinden eines Spaltrohres mit einem Kühlrohr |
DE102008036955A1 (de) | 2008-08-08 | 2010-02-11 | Borsig Gmbh | Verbindungsstück zwischen einem Spaltrohr und einem Kühlrohr sowie ein Verfahren zum Verbinden eines Spaltrohres mit einem Kühlrohr |
EP2278248A2 (de) | 2009-06-17 | 2011-01-26 | Borsig GmbH | Wärmetauscher zum Kühlen von Spaltgas |
EP4122594A1 (de) | 2021-07-23 | 2023-01-25 | Borsig GmbH | Wärmetauscher zum kühlen von spaltgas |
DE102021003955A1 (de) | 2021-07-23 | 2023-01-26 | Borsig Gmbh | Wärmetauscher |
Also Published As
Publication number | Publication date |
---|---|
EP0810414A2 (de) | 1997-12-03 |
US5813453A (en) | 1998-09-29 |
ATE216060T1 (de) | 2002-04-15 |
ES2175214T3 (es) | 2002-11-16 |
EP0810414A3 (de) | 1999-06-02 |
DE59706936D1 (de) | 2002-05-16 |
JP4140068B2 (ja) | 2008-08-27 |
JPH1062078A (ja) | 1998-03-06 |
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