NL8104758A - DEVICE FOR OBTAINING VAPOR FROM EQUIPMENT FOR THE SYNTHESIS OF AMMONIAK. - Google Patents
DEVICE FOR OBTAINING VAPOR FROM EQUIPMENT FOR THE SYNTHESIS OF AMMONIAK. Download PDFInfo
- Publication number
- NL8104758A NL8104758A NL8104758A NL8104758A NL8104758A NL 8104758 A NL8104758 A NL 8104758A NL 8104758 A NL8104758 A NL 8104758A NL 8104758 A NL8104758 A NL 8104758A NL 8104758 A NL8104758 A NL 8104758A
- Authority
- NL
- Netherlands
- Prior art keywords
- tubes
- gas
- space
- tube bottom
- supply
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/04—Preparation of ammonia by synthesis in the gas phase
- C01C1/0405—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst
- C01C1/0447—Apparatus other than synthesis reactors
- C01C1/0452—Heat exchangers
-
- 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
- F22B1/021—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers with heating tubes in which flows a non-specified heating fluid
-
- 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
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
- F28F21/083—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys from stainless steel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
* v- tr·*· -1- 22207/Vk/mb i* v- tr · * · -1- 22207 / Vk / mb i
Korte aanduiding: Inrichting voor het verkrijgen van damp uit apparatuur voor de synthese van ammoniak.Short designation: Apparatus for obtaining vapor from ammonia synthesis equipment.
De uitvinding heeft betrekking op een inrichting voor het verkrijgen 5 van damp uit apparatuur voor de synthese van ammoniak door warate-uitwisseling tussen hete onder hoge druk staande ammoniakgassen in U-buizen en onder hoge druk staand water rond de U-buizen, waarbij de ruimte van de waterdamp van de inrichting met behulp van een buizenbo-dem afgescheiden is van de zich aan de andere kant van de buizenbo-10 dem bevindende ruimte voor de toevoer.en afvoer van gas.The invention relates to a device for obtaining vapor from equipment for the synthesis of ammonia by heat exchange between hot high-pressure ammonia gases in U-pipes and high-pressure water around the U-pipes, wherein the space is separated from the water vapor of the device by means of a pipe bottom from the space on the other side of the pipe bottom for the supply and discharge of gas.
Bij dergelijke inrichtingen waarin ammoniakgas van ongeveer 450 tot 500 °C moet worden afgekoeld bij ongeveer 200 tot 300 bar met water van ongeveer 100 tot 120 bar tot 300-350 °C is het noodzakelijk de schadelijke werking van de ammoniakgassen bij temperaturen boven 370 tot 380 °C ten 15 aanzien van de inrichting te verhinderen.In such devices in which ammonia gas must be cooled from about 450 to 500 ° C at about 200 to 300 bar with water from about 100 to 120 bar to 300-350 ° C, it is necessary to have the deleterious effect of the ammonia gases at temperatures above 370 to 380 ° C with regard to the device.
Het is bekend om aan deze eisen te voldoen door het hete ammoniakgas gas via een centrale toevoerleiding in een daarmee verbonden klok te leiden die gasdicht is verbonden met een buizenbodem die is voorzien van een deklaag die bestand is tegen nitreren, waarbij de ü-buizen van de 20 warmtewisselaar bestaan uit nitreerbestendige materialen zoals vermeld in het Duitse octrooischrift 2.007.528. Nitreerbestendige buizen zijn echter onderhevig aan het optreden van corrosie bij spanningen waarbij scheuren ontstaan aan de waterkant.It is known to meet these requirements by passing the hot ammonia gas gas through a central feed line into an associated bell which is gas tightly connected to a tube bottom provided with a nitride resistant coating, the ü tubes of the heat exchanger consists of nitride-resistant materials as disclosed in German Pat. No. 2,007,528. Nitride-resistant pipes, however, are subject to corrosion at stresses causing waterfront cracks.
De doelstelling volgens de uitvinding is om een inrichting te ver-' 25 krijgen waarbij ferriethoudend materiaal kan worden toegepast voor de buizenbodem en voor de buizen.The object according to the invention is to obtain a device in which ferrite-containing material can be used for the tube bottom and for the tubes.
De doelstelling volgens de uitvinding wordt bewerkstelligd door het toepassen van een inrichting volgens de uitvinding en deze wordt hierdoor gekenmerkt dat 30 a) voor de toevoer van het hete ammoniakgas in de U-buis (7) een gastoevoerruimte (3) is aangebraoht die voorgeplaatst is ten opzichte van de buizenbodem (8), b) die ongeveer centraal is gelegen binnen de gasafvoerruimte (12) en 35 c) in boorgaten ingelaste insteekbuizen (5) heeft voor de helft van de uiteinden van de in de buizenbodem (8) ingelaste U-buizen (7), waarbij d) de uiteinden van de U-buizen (7) in de buizenbodem (8) zodanig 8104758 -2- 22207/Vk/mb naast elkaar liggen dat in de zo gevormde rijen steeds slechts een gas-toevoeruiteinde is aangebracht naast een gasafvoeruiteinde.The object according to the invention is achieved by the use of a device according to the invention and it is characterized in that a) a gas supply space (3) is placed before the supply of the hot ammonia gas in the U-tube (7). with respect to the tube bottom (8), b) which is located approximately centrally within the gas discharge space (12) and 35 c) insertion tubes (5) welded into boreholes have half of the ends of the U welded into the tube bottom (8) -tubes (7), where d) the ends of the U-tubes (7) in the tube bottom (8) are next to each other in such a way that in the rows thus formed only one gas supply end is fitted next to a gas discharge end.
Bij de inrichting volgens de uitvinding wordt de toevoer van heet ammoniakgas gevoerd in de U-buizen die met betrekking tot de buizenbodem 5 zijn voorzien van een gastoevoerruimte die ongeveer centraal binnen de gasafvoerruimte ligt en in boringen ingelaste insteekbuizen heeft die voor de helft de uiteinden van de in de buizenbodem ingelaste U-buizen omvat waarbij de uiteinden van de U-buizen in de buizenbodem zodanig naast elkaar liggen dat in de aldus gevormde rijen steeds slechts een gastoevoer-10 uiteinde gelegen is naast een gasafvoeruiteinde.In the device according to the invention, the supply of hot ammonia gas is fed into the U-pipes which, with respect to the pipe bottom 5, are provided with a gas supply space which is located approximately centrally within the gas discharge space and has insert pipes inserted in bores which have half the ends of the U-tubes welded into the tube bottom, wherein the ends of the U-tubes in the tube bottom lie next to each other in such a way that in the rows thus formed only one gas supply end is located next to a gas discharge end.
Om er zeker van te zijn dat de uiteinden van de U-buizen in de buizenbodem voor de toevoer van het hete ammoniakgas een maximale temperatuur hebben van ongeveer 300 tot 350 °C, in overeenstemming met de temperatuur van het afgekoelde ammoniakgas en om een verdere nitrering van de 15 buizenbodem en de U-buizen verhinderen, hebben volgens een verdere uitvoeringsvorm van de uitvinding de insteekbuizen met anders een kleinere buitendiameter dan de binnendiameter van de U-buizen aan de vrije uiteinden een verruiming die, gezien in de stroomrichting van de gastoevoer, achter de buizenbodem- in het binnenste van de water-dampruimte gasdicht met de 20 binnenwanden van de U-buizen verbonden is en door de verbredingen tot de gaszijde van de buizenbodem vormen de U-buizen ringvormige ruimten met de insteeekbuizen.To ensure that the ends of the U-tubes in the tube bottom for the supply of the hot ammonia gas have a maximum temperature of about 300 to 350 ° C, in accordance with the temperature of the cooled ammonia gas and to further nitride According to a further embodiment of the invention, the insert pipes with otherwise a smaller outer diameter than the inner diameter of the U-pipes at the free ends have an extension which, viewed in the direction of flow of the gas supply, of the pipe bottom and the U-pipes, behind the tube bottom - in the interior of the water-vapor space - is connected in a gas-tight manner to the inner walls of the U-tubes and, due to the widenings to the gas side of the tube bottom, the U-tubes form annular spaces with the insertion tubes.
De voordelen die worden bewerkstelligd met de inrichting volgens de uitvinding bestaan vooral hierin dat door de rangschikking van de 25 U-buizen met de insteekbuizen een gelijkmatigere temperatuur van de totale buizenbodem wordt bewerkstelligd bij de afvoertemperatuur van de afgekoelde ammoniakgassen en een verdere nitrering van de buizenbodem en de U-buizen wordt vermeden.The advantages achieved with the device according to the invention mainly consist in that by arranging the 25 U-tubes with the insertion tubes, a more uniform temperature of the entire tube bottom is achieved at the discharge temperature of the cooled ammonia gases and a further nitration of the tube bottom and the U-tubes are avoided.
De uitvinding wordt nader toegelicht aan de hand van de volgende 30 beschrijving, waarbij verwezen is naar de tekening waarin: fig. 1 een langsdoorsnede is van een inrichting, fig. 2 een doorsnede is over lijn II-II in fig. 1 en fig. 3 een detailbeeld is van het in fig. 1 omcircelde gedeelte X.The invention will be further elucidated with reference to the following description, wherein reference is made to the drawing in which: fig. 1 is a longitudinal section of a device, fig. 2 is a section along line II-II in fig. 1 and fig. 3 is a detail view of the portion X circled in FIG. 1.
De hete ammoniakgassen worden via de toevoer 1 in de richting' 35 van pijl 2 toegevoerd aan de nitreerbestendige voorgeschakelde gastoevoerruimte 3 en worden dan in de richting van de pijlen 4 toegevoerd aan de nitreerbestendige insteekbuizen 5 die aan de uiteinden zijn gelast aan de voorgeschakelde gastoevoerruimte 3 en met het andere uit- 8104753 ---------- -3- 22207/Vk/mb r^.The hot ammonia gases are supplied via the feed 1 in the direction of arrow 2 to the nitride-resistant upstream gas supply space 3 and are then supplied in the direction of the arrows 4 to the nitride-resistant insert pipes 5 which are welded at the ends to the upstream gas supply space 3 and with the other 8104753 ---------- -3- 22207 / Vk / mb r ^.
·' V· 'V
einde met de verbreding 6 in de toevoeruiteinden van de U-buizen 7 bestaande uit een ferritische werkstef waarmee ze gasdicht zijn verbonden. De U-buizen die in de ferriethoudende buizenbodem 8 zijn gelast en die in de waterdampruimte 9 omgeven worden door water vormen bij de toevoer-5 uiteinden met de insteekbuizen 5 de ringvormige ruimte 10 die door de plaatsing van de verbreding 6 in de waterdampruimte 9 eveneens tot in de waterdampruimte komen. De afgekoelde ammoniakgassen stromen in de richting van de pijlen 11 uit de U-buizen 7 in de gasafvoerruimte 12 en verlaten de gasafvoerruimte in de richting van de pijl 13 door het uit-10 stekende ondersteunend einde 14. Het koelwater wordt in de richting van pijl 15 door de toevoer 16 toegevoerd aan de waterdampruimte 9 en verlaat deze als damp in de richting van pijl 17 via afvoer 18.end with the widening 6 in the feed ends of the U-tubes 7 consisting of a ferritic working female with which they are connected in a gastight manner. The U-tubes which are welded in the ferrite-containing tube bottom 8 and which are surrounded by water in the water vapor space 9 form at the supply ends with the insertion tubes 5 the annular space 10 which, by placing the widening 6 in the water vapor space 9, also into the water vapor space. The cooled ammonia gases flow from the U-tubes 7 in the direction of the arrows 11 into the gas discharge space 12 and leave the gas discharge space in the direction of the arrow 13 through the protruding supporting end 14. The cooling water is discharged in the direction of arrow 15 is supplied by the inlet 16 to the water vapor space 9 and leaves it as vapor in the direction of arrow 17 via outlet 18.
-CONCLUSIES- r 8104733- CONCLUSIONS - r 8104733
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3049409 | 1980-12-23 | ||
DE3049409A DE3049409C2 (en) | 1980-12-23 | 1980-12-23 | Equipment for steam generation in ammonia synthesis plants |
Publications (3)
Publication Number | Publication Date |
---|---|
NL8104758A true NL8104758A (en) | 1982-07-16 |
NL180134B NL180134B (en) | 1986-08-01 |
NL180134C NL180134C (en) | 1987-01-02 |
Family
ID=6120499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE8104758,A NL180134C (en) | 1980-12-23 | 1981-10-21 | DEVICE FOR OBTAINING VAPOR BY EXCHANGE OF HEAT IN THE PREPARATION OF AMMONIAK. |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS6038334B2 (en) |
AT (1) | AT382705B (en) |
DE (1) | DE3049409C2 (en) |
ES (1) | ES506988A0 (en) |
FR (1) | FR2496843B1 (en) |
GB (1) | GB2089951B (en) |
IT (1) | IT1140363B (en) |
NL (1) | NL180134C (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3302304A1 (en) * | 1983-01-25 | 1984-07-26 | Borsig Gmbh, 1000 Berlin | HEAT EXCHANGER FOR COOLING HOT GASES, ESPECIALLY FROM THE AMMONIA SYNTHESIS |
DE3641710A1 (en) * | 1986-12-06 | 1988-06-16 | Uhde Gmbh | DEVICE FOR EXCHANGING HEAT BETWEEN A CIRCUIT GAS AND WATER LEAVING AN NH (DOWN ARROW) 3 (DOWN ARROW) CONVERTER |
DE3642673C1 (en) * | 1986-12-13 | 1988-01-21 | Borsig Gmbh | Heat exchanger for cooling gases from ammonia synthesis |
US5236671A (en) * | 1990-09-24 | 1993-08-17 | C. F. Braun, Inc. | Apparatus for ammonia synthesis |
KR101562527B1 (en) | 2008-06-26 | 2015-10-22 | 할도르 토프쉐 에이/에스 | Process for the production of ammonia and steam superheater |
DE102010040278A1 (en) * | 2010-09-06 | 2012-03-08 | Siemens Aktiengesellschaft | Heat exchanger e.g. steam generator used in nuclear plant, has perforated plate whose surface is divided into hot and cold regions, such that heat transfer medium flows through passages in opposite directions |
EP2482020B2 (en) | 2011-01-31 | 2022-12-21 | Haldor Topsøe A/S | Heat exchanger |
CN103344138A (en) * | 2013-07-15 | 2013-10-09 | 江苏七政新能源有限公司 | Multi-tube type cooler |
CN104729824B (en) * | 2015-03-12 | 2017-06-30 | 中国科学院力学研究所 | A kind of heat-exchanger rig and its building method for cooling down High Mach number nozzle throat |
DK3406999T3 (en) | 2017-05-26 | 2021-02-01 | Alfa Laval Olmi S P A | SMOKE PART HEAT EXCHANGER |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR927657A (en) * | 1946-06-05 | 1947-11-05 | Babcock & Wilcox France | Improvements to tubular heat exchangers |
US3083833A (en) * | 1959-05-20 | 1963-04-02 | Bendix Corp | Fuel heater-filter combination |
NL7100636A (en) * | 1970-02-19 | 1971-08-23 | ||
GB2014293A (en) * | 1978-02-01 | 1979-08-22 | Steinmueller Gmbh L & C | Heat exchanger for cooling process gases which are at high pressure and high temperature |
US4191246A (en) * | 1979-03-05 | 1980-03-04 | Combustion Engineering, Inc. | Device to reduce local heat flux through a heat exchanger tube |
-
1980
- 1980-12-23 DE DE3049409A patent/DE3049409C2/en not_active Expired
-
1981
- 1981-10-08 AT AT0432081A patent/AT382705B/en not_active IP Right Cessation
- 1981-10-21 NL NLAANVRAGE8104758,A patent/NL180134C/en not_active IP Right Cessation
- 1981-11-10 ES ES506988A patent/ES506988A0/en active Granted
- 1981-11-12 GB GB8134154A patent/GB2089951B/en not_active Expired
- 1981-11-24 FR FR8122002A patent/FR2496843B1/en not_active Expired
- 1981-11-30 JP JP56190936A patent/JPS6038334B2/en not_active Expired
- 1981-12-18 IT IT25674/81A patent/IT1140363B/en active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR927657A (en) * | 1946-06-05 | 1947-11-05 | Babcock & Wilcox France | Improvements to tubular heat exchangers |
US3083833A (en) * | 1959-05-20 | 1963-04-02 | Bendix Corp | Fuel heater-filter combination |
NL7100636A (en) * | 1970-02-19 | 1971-08-23 | ||
GB2014293A (en) * | 1978-02-01 | 1979-08-22 | Steinmueller Gmbh L & C | Heat exchanger for cooling process gases which are at high pressure and high temperature |
US4191246A (en) * | 1979-03-05 | 1980-03-04 | Combustion Engineering, Inc. | Device to reduce local heat flux through a heat exchanger tube |
Also Published As
Publication number | Publication date |
---|---|
IT8125674A0 (en) | 1981-12-18 |
FR2496843A1 (en) | 1982-06-25 |
GB2089951A (en) | 1982-06-30 |
NL180134C (en) | 1987-01-02 |
GB2089951B (en) | 1984-04-26 |
ES8302882A1 (en) | 1982-12-16 |
FR2496843B1 (en) | 1987-06-26 |
AT382705B (en) | 1987-04-10 |
ATA432081A (en) | 1986-08-15 |
IT1140363B (en) | 1986-09-24 |
ES506988A0 (en) | 1982-12-16 |
NL180134B (en) | 1986-08-01 |
JPS57129821A (en) | 1982-08-12 |
DE3049409C2 (en) | 1983-12-01 |
DE3049409A1 (en) | 1982-07-22 |
JPS6038334B2 (en) | 1985-08-31 |
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A1A | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
A85 | Still pending on 85-01-01 | ||
BC | A request for examination has been filed | ||
V1 | Lapsed because of non-payment of the annual fee |