EP0251005A1 - Refroidisseur de gaz de synthèse - Google Patents
Refroidisseur de gaz de synthèse Download PDFInfo
- Publication number
- EP0251005A1 EP0251005A1 EP87108572A EP87108572A EP0251005A1 EP 0251005 A1 EP0251005 A1 EP 0251005A1 EP 87108572 A EP87108572 A EP 87108572A EP 87108572 A EP87108572 A EP 87108572A EP 0251005 A1 EP0251005 A1 EP 0251005A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- cable
- flue
- throttle cable
- pressure vessel
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/1838—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines the hot gas being under a high pressure, e.g. in chemical installations
- F22B1/1846—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines the hot gas being under a high pressure, e.g. in chemical installations the hot gas being loaded with particles, e.g. waste heat boilers after a coal gasification plant
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/86—Other features combined with waste-heat boilers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
Definitions
- the invention relates to a gas cooler for synthesis gas, with two coaxial gas flues arranged vertically in a pressure container, which are formed from wall tubes welded to one another in a gas-tight manner and through which a medium flows, with a first gas passage connector for the gas cooler, which is attached to an upper end of the gas cooler and coaxial with the gas flues inner throttle cable and with at least one second gas passage connector for the outer throttle cable, in the area of a lower end of the gas cooler the inner throttle cable opens into the interior of the outer throttle cable and each throttle cable has at least its own inlet and outlet collector has, in which the wall pipes open.
- Such a gas cooler is known from US Pat. No. 4,377,132, in which the inner throttle cable is fastened to the outer throttle cable and which, besides essential advantages of a thermodynamic and fluidic type, as well as in terms of pollution, has the disadvantage of poor accessibility of the wall pipes. That with solid impurities loaded synthesis gas enters the cooler at a temperature of, for example, 1500 ° C and a pressure of around 40 bar and leaves it at, for example, around 700 ° C, so that the gas flues are exposed to considerable corrosion. As a result of pollution, there are often considerable local temperature differences and therefore thermal stresses that place additional stress on the gas flues.
- the inner gas flue is particularly affected because it is affected by the highest temperatures and the synthesis gas acts on it on both sides.
- the inner gas train can be released independently of the outer gas train, and the first gas passage connection and the outer gas train with associated collector are dimensioned in the region of the upper end of the heat exchanger such that the inner gas train together with its collectors passes through it is vertically displaceable, and that at least one gas-guiding channel opening into the interior of the inner gas flue is arranged in the first gas passage nozzle.
- the inner throttle cable can be pulled out of the pressure vessel through the first gas passage opening in a simple manner, regardless of the outer throttle cable, optimum accessibility of the inner throttle cable and the inside of the outer gas cable which is acted upon by the hot gases being achieved.
- the inner gas train and the individual parts forming the outer gas train can be designed such that they each have a weight of approximately 25 tons; a weight that can be effortlessly managed with the lifting devices that are already available in every system of this type.
- a particular advantage of the invention is that the order in which the accelerator cables are made accessible corresponds to the actual need: the most heavily used and therefore most frequently in need of cleaning and overhaul inner gas cable is the most easily accessible, the inside of the outer gas cable shows second in terms of accessibility, and the least stressed outer side of the outer throttle cable, as well as the inner side of the pressure vessel, are finally accessible.
- the invention also has the additional advantage that when the inner throttle cable is removed from the pressure vessel, its collectors are taken along, so that any necessary pressure and tightness tests can also take place outside the pressure vessel. In the embodiment according to claim 3, this is also the case with respect to the outer throttle cable.
- the gas cooler for synthesis gas has a prismatic, vertical inner gas duct 1 and a likewise prismatic, vertical outer gas duct 2, which are arranged coaxially in a circular-cylindrical, vertical pressure vessel 3.
- the gas passages 1 and 2 are formed from straight wall pipes 5 and 5 ⁇ which run in the longitudinal direction of the gas passages and are welded to one another in a gas-tight manner by means of webs 4 and through which water or steam flows.
- a first gas passage nozzle 6 is attached coaxially with the gas cables 1 and 2.
- the inner throttle cable 1 opens into the interior of the outer throttle cable 2.
- the inner throttle cable 1 and the outer throttle cable 2 each have a regular, octagonal cross section, delimited by eight walls, and are rotated by 22.5 ° relative to one another, so that the largest possible cross-sectional area is available in the space between the two throttle cables l and 2 for inspection purposes.
- the wall tubes 5 of the inner throttle cable 1 each have a C-shaped bend that extends radially inwards and receives deformations and open into eight inner collectors (outlet collectors) l2; one for each wall.
- Each collector l2 is connected to a steam consumer (not shown) via a first steam line l4 penetrating the pressure vessel 3.
- the wall pipes 5 ⁇ of the outer throttle cable 2 form a funnel, which they leave radially below, along a horizontal plane, and open into eight, one for each wall, outer manifolds (inlet collectors) 2l.
- Each outer distributor 2l is supplied with water via a horizontal, second water pipe 23 which pierces the pressure vessel.
- the wall pipes 5 ⁇ of the outer throttle cable 2 open into eight, also one per wall, collectors (outlet collectors) 22, each of which via a second steam line 24 penetrating the pressure vessel 3, like the inner collector l2, with one not shown Steam consumer is connected.
- the inner throttle cable 1 and the outer throttle cable 2 is independently suspended from the pressure vessel 3 by means of tie rods 8 or 8 ⁇ .
- the tie rods 8 of the inner throttle cable l are each attached to a releasable support element l5, which is connected by means of horizontal screws (not shown in FIG. 3) to a support l5 ⁇ welded to the wall of the pressure vessel 3 and to the first gas passage nozzle 6.
- Each tie rod 8 'of the outer throttle cable 2 is connected to a support element 25 directly welded to the wall of the pressure vessel 3. Adjusting nuts l6 make it easy to adjust the tie rods 8.8 ⁇ on the support elements l5 or 25.
- d1 the greatest horizontal extent of the inner throttle cable l is denoted by d1.
- d2 the distance between two parallel collectors 22 and is designated in Fig. L by d2 .
- d3 the inner diameter of the first gas passage nozzle 6 is denoted by d3. Both d2 and d3 are chosen larger than d1, so that the inner throttle cable l can easily be lifted out of the gas cooler by means of a hoist l8 shown only symbolically in FIG.
- a gasification reactor 30 is detachably connected by means of a flange connection to the first gas passage nozzle 6.
- the interior of the gasification reactor 30 is continuously connected to the interior of the first gas flue l via a gas-conducting channel 10 arranged coaxially with the first gas passage nozzle 6.
- the channel l0 has a high heat resistance and heat insulating effect and is preferably made of one Made of thin steel tube, which is lined with a thick insulating layer l0 ⁇ , which consists for example of a ramming compound.
- the pressure vessel 3 In its lower area, the pressure vessel 3 forms a water bath 40 and is connected via a purification connection 4l to devices (not shown) for treating very dirty hot water. Fresh water is fed into the water bath 40 via a water supply line 42.
- the eight vertical walls forming the outer throttle cable 2 are detachably connected to one another.
- the outer manifold 2l and the outer collector 22 are firmly connected to the wall pipes 5 ⁇ of the outer throttle cable 2. It is therefore possible with relatively little effort to divide the outer throttle cable 2 into eight individual walls with associated collectors and distributors, which can be lifted out of the interior of the pressure vessel 3 through the gas passage nozzle 6. Since the need for such work arises only exceptionally, and then only rarely for all walls at the same time, these are normally welded to one another with relatively thin, easily removable weld seams 17 (FIG. 4). Screw connections are also possible instead of the weld seams l7.
- the gas cooler works as follows:
- Hot synthesis gas flows from the gasification reactor 30 through the channel l0 into the interior of the inner gas flue l. This is thus flowed through from top to bottom, whereby heat radiates from the synthesis gas onto the wall tubes 5.
- the synthesis gas is redirected into the interior of the second throttle cable 2 and now flows from the bottom upwards between the inner gas cable 1 and the outer gas cable 2, thereby to the wall pipes 5 of the inner gas cable l and also to the wall pipes 5 ' radiating outer throttle cable 2.
- a substantial amount of the contaminants carried by the synthesis gas settles during the flow described, partly on the water bath 40 and partly first on the surfaces of the gas passages 1 and 2, from where they flow into the bath 40.
- the cooled synthesis gas leaves the gas cooler via the second gas passage connector 7.
- the area located above the connector 7 between the inner gas cable 1 and the outer gas cable 2 and the pressure vessel 3 are filled with stagnant synthesis gas, with some heat passing through the outer wall of the outer gas cable 2 is dissipated from this. In this way, a certain pressure equalization occurs within the pressure vessel 3 between the inside and outside of each throttle cable, so that they can be designed for relatively small pressure differences and only the pressure vessel 3 is subjected to the high internal pressure.
- the gasification reactor 30 and the duct 10 are removed, thereby clearing the way for lifting the inner gas duct 1.
- This is then suspended from the hoist l8, after which the detachable support elements l5 are removed and the connections to the water pipes l3 (flange l3 ⁇ ) and to the steam pipes l4 (flange l4 ⁇ ) are released.
- the inner throttle cable 1 can now be lifted out of the gas cooler through the first gas passage nozzle 6 and transported to a work station. Both the throttle cable 1 and the interior of the second gas cable are now easily accessible. Because the distributor 11 and the collector 12 are transported together with the inner accelerator cable 1, the accelerator cable 1 can be tested for pressure and tightness before reinstallation.
- the outer gas cable 2 can be completely or partially - after sanding the weld seams l7 between its walls - disassembled into individual walls which are then lifted out of the pressure vessel 3 with the aid of the lifting device l8 and become one Workplace to be transported.
- the distributor 2l and collector 22 carried along can then be used to carry out any pressure and tightness tests before reinstallation.
- the described embodiment of the gas cooler is preferred in practice because of its characteristic gas flow, because this results in advantageous conditions for separating the contaminants carried by the gas.
- the vertical tie rods 8 of the inner throttle cable 1 not only result in considerably smaller mechanical stresses within the gas cooler, but also a problem-free centering of the inner throttle cable 1, which considerably simplifies its installation and removal.
- the water pipes 13, 23 and steam pipes 14, 24 are designed in such a way that they prevent or inhibit any tendency of the gas cables 1 and 2 to oscillate.
- the wall tubes 5.5 ⁇ bent radially in the direction of the interior of the throttle cable to accommodate deformations fulfill one important function, since relatively large deformations - as a result, for example, of thermal expansion and / or earthquakes - can occur, which would cause great damage if the throttle cables 1, 2 were insufficiently elastic. In particular, blows are better absorbed during overhaul or assembly work.
- the gas cooler is designed for relatively high outlet temperatures from the second gas passage nozzle, it may be advantageous to close the upper end of the space between the inner gas cable 1 and the outer gas cable 2 with a removable cover and to equalize the pressure with the inside of the pressure container 3 to realize in other ways, for example, by connecting the interior of the pressure vessel 3 with the cool part of a downstream second gas cooler and - along a cooling section - with the synthesis gas, whereby a throttle element interrupts the connection to the second gas cooler in normal operation.
- the releasable support elements l5 could also be detachably attached to the inner throttle cable l and for this the tie rod 8 could be fastened directly to the support l5 ⁇ firmly connected to the pressure vessel 3.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Development (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2661/86A CH670501A5 (fr) | 1986-07-02 | 1986-07-02 | |
CH2661/86 | 1986-07-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0251005A1 true EP0251005A1 (fr) | 1988-01-07 |
EP0251005B1 EP0251005B1 (fr) | 1991-03-27 |
Family
ID=4238744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87108572A Expired - Lifetime EP0251005B1 (fr) | 1986-07-02 | 1987-06-13 | Refroidisseur de gaz de synthèse |
Country Status (8)
Country | Link |
---|---|
US (1) | US4768470A (fr) |
EP (1) | EP0251005B1 (fr) |
JP (1) | JPS6325490A (fr) |
CN (1) | CN1012590B (fr) |
AU (1) | AU590865B2 (fr) |
CH (1) | CH670501A5 (fr) |
DE (1) | DE3768865D1 (fr) |
ZA (1) | ZA874763B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0435424A1 (fr) * | 1989-11-24 | 1991-07-03 | Texaco Development Corporation | Barrière pour gaz de synthèse et support réfractaire |
EP0763589A1 (fr) * | 1995-09-13 | 1997-03-19 | MAN Gutehoffnungshütte Aktiengesellschaft | Revêtement réfractaire dans une transition entre un gazéificateur et une chaudière de récupération |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3505157A1 (de) * | 1985-02-15 | 1986-08-21 | Krupp Koppers GmbH, 4300 Essen | Verfahren zum erzeugen elektrischer energie in einem kombinierten gas- und dampfturbinenkraftwerk mit vorgeschalteter kohlevergasungsanlage |
DE4017219A1 (de) * | 1990-05-29 | 1991-12-05 | Babcock Werke Ag | Vorrichtung zur vergasung von kohlenstoffhaltigen materialien |
US5233943A (en) * | 1990-11-19 | 1993-08-10 | Texaco Inc. | Synthetic gas radiant cooler with internal quenching and purging facilities |
JPH08500389A (ja) * | 1992-12-30 | 1996-01-16 | コンバッション エンヂニアリング インコーポレーテッド | ガス化装置用の円形スラグタップ |
US5803937A (en) * | 1993-01-14 | 1998-09-08 | L. & C. Steinmuller Gmbh | Method of cooling a dust-laden raw gas from the gasification of a solid carbon-containing fuel |
ES2083787T3 (es) * | 1993-03-16 | 1996-04-16 | Krupp Koppers Gmbh | Aparato de gasificacion para gasificar a presion combustibles finamente divididos. |
DE19714376C1 (de) * | 1997-04-08 | 1999-01-21 | Gutehoffnungshuette Man | Synthesegaserzeuger mit Brenn- und Quenchkammer |
US7587995B2 (en) * | 2005-11-03 | 2009-09-15 | Babcock & Wilcox Power Generation Group, Inc. | Radiant syngas cooler |
US8684070B2 (en) * | 2006-08-15 | 2014-04-01 | Babcock & Wilcox Power Generation Group, Inc. | Compact radial platen arrangement for radiant syngas cooler |
US8191617B2 (en) * | 2007-08-07 | 2012-06-05 | General Electric Company | Syngas cooler and cooling tube for use in a syngas cooler |
US8240366B2 (en) * | 2007-08-07 | 2012-08-14 | General Electric Company | Radiant coolers and methods for assembling same |
DE102011080838B3 (de) * | 2011-08-11 | 2013-01-03 | Siemens Aktiengesellschaft | Flugstromvergaser aufweisend einen Kühlschirm mit seitlich durch den Druckmantel geführter Verrohrung |
CN103013582B (zh) * | 2012-12-11 | 2014-08-27 | 中国东方电气集团有限公司 | 带烟气激冷的一体化束状辐射预热混合式能源利用装置 |
US9321975B2 (en) * | 2013-12-06 | 2016-04-26 | General Electric Company | System and method for cooling syngas within a gasifier system |
DE102014201890A1 (de) * | 2014-02-03 | 2015-08-06 | Siemens Aktiengesellschaft | Kühlung und Waschung eines Rohgases aus der Flugstromvergasung |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR902653A (fr) * | 1943-10-18 | 1945-09-10 | Brandt Edgar Ets | Appareil gazo-vapeur constitué par la combinaison d'une chaudière et d'un gazogène |
DE2933514B1 (de) * | 1979-08-18 | 1980-03-27 | Gutehoffnungshuette Sterkrade | Vorrichtung zum Behandeln von durch Kohlevergasung erzeugtem Synthesegas |
EP0048326A2 (fr) * | 1980-09-19 | 1982-03-31 | GebràDer Sulzer Aktiengesellschaft | Refroidisseur de gaz chauds pour une installation de gazéification de charbon |
FR2513741A1 (fr) * | 1981-09-25 | 1983-04-01 | Creusot Loire | Chaudiere de recuperation equipant une installation de gazeification de combustibles solides |
EP0088221A2 (fr) * | 1982-03-09 | 1983-09-14 | Deutsche Babcock Anlagen Aktiengesellschaft | Appareil pour refroidir un gaz produit dans un gazogène |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4377132A (en) * | 1981-02-12 | 1983-03-22 | Texaco Development Corp. | Synthesis gas cooler and waste heat boiler |
NL187177C (nl) * | 1982-07-12 | 1991-06-17 | Stork Ketel & App | Vertikale stralingsketel. |
CH661585A5 (de) * | 1983-07-07 | 1987-07-31 | Sulzer Ag | Waermeuebertrager fuer gase, vorzugsweise synthesegaskuehler. |
-
1986
- 1986-07-02 CH CH2661/86A patent/CH670501A5/de not_active IP Right Cessation
-
1987
- 1987-06-10 CN CN87104200A patent/CN1012590B/zh not_active Expired
- 1987-06-13 DE DE8787108572T patent/DE3768865D1/de not_active Expired - Fee Related
- 1987-06-13 EP EP87108572A patent/EP0251005B1/fr not_active Expired - Lifetime
- 1987-06-30 US US07/068,895 patent/US4768470A/en not_active Expired - Fee Related
- 1987-07-01 JP JP62165096A patent/JPS6325490A/ja active Pending
- 1987-07-01 AU AU74996/87A patent/AU590865B2/en not_active Ceased
- 1987-07-01 ZA ZA874763A patent/ZA874763B/xx unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR902653A (fr) * | 1943-10-18 | 1945-09-10 | Brandt Edgar Ets | Appareil gazo-vapeur constitué par la combinaison d'une chaudière et d'un gazogène |
DE2933514B1 (de) * | 1979-08-18 | 1980-03-27 | Gutehoffnungshuette Sterkrade | Vorrichtung zum Behandeln von durch Kohlevergasung erzeugtem Synthesegas |
EP0048326A2 (fr) * | 1980-09-19 | 1982-03-31 | GebràDer Sulzer Aktiengesellschaft | Refroidisseur de gaz chauds pour une installation de gazéification de charbon |
FR2513741A1 (fr) * | 1981-09-25 | 1983-04-01 | Creusot Loire | Chaudiere de recuperation equipant une installation de gazeification de combustibles solides |
EP0088221A2 (fr) * | 1982-03-09 | 1983-09-14 | Deutsche Babcock Anlagen Aktiengesellschaft | Appareil pour refroidir un gaz produit dans un gazogène |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0435424A1 (fr) * | 1989-11-24 | 1991-07-03 | Texaco Development Corporation | Barrière pour gaz de synthèse et support réfractaire |
EP0763589A1 (fr) * | 1995-09-13 | 1997-03-19 | MAN Gutehoffnungshütte Aktiengesellschaft | Revêtement réfractaire dans une transition entre un gazéificateur et une chaudière de récupération |
WO1997010315A2 (fr) * | 1995-09-13 | 1997-03-20 | MAN Gutehoffnungshütte Aktiengesellschaft | Revetement refractaire dans la gaine reliant un gazeificateur a une chaudiere de recuperation |
WO1997010315A3 (fr) * | 1995-09-13 | 1997-05-15 | Gutehoffnungshuette Man | Revetement refractaire dans la gaine reliant un gazeificateur a une chaudiere de recuperation |
US5873329A (en) * | 1995-09-13 | 1999-02-23 | Man Gutehoffnungshutte Aktiengesellschaft | Refractory lining in the transition of a gasifier to the waste heat boiler |
Also Published As
Publication number | Publication date |
---|---|
DE3768865D1 (de) | 1991-05-02 |
ZA874763B (en) | 1988-01-06 |
US4768470A (en) | 1988-09-06 |
CN1012590B (zh) | 1991-05-08 |
CN87104200A (zh) | 1988-01-13 |
EP0251005B1 (fr) | 1991-03-27 |
AU590865B2 (en) | 1989-11-16 |
JPS6325490A (ja) | 1988-02-02 |
AU7499687A (en) | 1988-01-07 |
CH670501A5 (fr) | 1989-06-15 |
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