DK165142B - DEVICE FOR HEAT EXCHANGE BETWEEN AN CIRCUIT GAS AND WATER FROM AN NH3 CONVERTER - Google Patents
DEVICE FOR HEAT EXCHANGE BETWEEN AN CIRCUIT GAS AND WATER FROM AN NH3 CONVERTER Download PDFInfo
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- DK165142B DK165142B DK526287A DK526287A DK165142B DK 165142 B DK165142 B DK 165142B DK 526287 A DK526287 A DK 526287A DK 526287 A DK526287 A DK 526287A DK 165142 B DK165142 B DK 165142B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
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- 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
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- 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
- F22B1/1884—Hot gas heating tube boilers with one or more heating tubes
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00159—Controlling the temperature controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling
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- 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
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- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Treating Waste Gases (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Gas Separation By Absorption (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Chimneys And Flues (AREA)
Abstract
Description
iin
DK 165142 BDK 165142 B
Opfindelsen angår en indretning til varmeveksling mellem en fra en NH3~konverter afgående kredsløbsgas og vand, hvilken indretning har af kredsløbsgassen gennemstrømmede varmevekslingsrør, som er forbundet gastæt med mindst én rørbund, der 5 adskiller et trykmodstandsdygtigt forkammer og et varmevekslingskammer, og hvor forkammeret i det mindste omfatter en kredsløbsgastilførende klokke og et samlekammer, hvor den afkølede kredsløbsgas føres bort, hvilket samlekammer omslutter klokken.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a heat exchange device between a circulating gas and water exiting an NH3 converter which has a heat exchange pipe flowing through the gas gas connected to at least one pipe bottom separating a pressure resistant chamber and a heat exchange chamber, the least includes a circuit gas supplying bell and a collecting chamber where the cooled circulating gas is carried away, which collecting chamber encloses the bell.
1010
En sådan indretning kendes for eksempel fra EP-patentansøgning nr. 130 361. Den der beskrevne rørbund er i det væsentlige anbragt vandret og i det mindste i områder udstyret med kølekanaler, som er aflukkede i den varme ende, og som yderligere er 15 udstyret med et indvendigt lille rørstykke på en sådan måde, at varmevekslervandet i de små rørstykker bliver ført frem ved naturligt fremløb, at vandet i kølekanalerne fordamper, og at den opståede vand-dampblanding strømmer tilbage i varmeveksleren. Skønt denne teknik til køling af tykvæggede konstrukti-20 onsdele, der i det mindste er varme på den ene side, udviser væsentlige fordele, er der i det mindste én ulempe ved denne indretning, som består i, at konstruktionsdelene i det væsentlige må være anbragt vandret, hvis naturligt fremløb skal anvendes, hvorved kølevandet i den tilsigtede tilførselsmængde 25 kan strømme ind i kølekanalerne og fordampe, og at dampvand-blandingen igen kan strømme ud.Such a device is known, for example, from European Patent Application No. 130,361. The pipe bottom described is substantially arranged horizontally and at least in areas equipped with cooling ducts which are closed at the hot end and which are further equipped with an inner small pipe piece in such a way that the heat exchanger water in the small pipe pieces is conveyed by natural flow, that the water in the cooling channels evaporates and that the resulting water-vapor mixture flows back into the heat exchanger. Although this technique for cooling thick-walled structural members, which is at least heat on one side, exhibits significant advantages, there is at least one disadvantage of this device which consists in the fact that the structural members must be disposed substantially horizontal, if natural flow is to be used, whereby the cooling water in the intended feed quantity 25 can flow into the cooling ducts and evaporate, and the steam-water mixture can again flow out.
Fra DE 20 07 528 kendes en metode til at aflaste en varm rørbund ved en speciel føring af syntesegassen. Dette medfører, 30 på samme måde som i den ovennævnte publikation, en vis ujævn afkøling af rørbunden, og giver således heller ingen afkøling af de med varm kredsløbsgas påvirkede konstruktionsdele.DE 20 07 528 discloses a method of relieving a hot pipe bottom by a special guide of the synthesis gas. This, in the same way as in the above-mentioned publication, results in some uneven cooling of the pipe bottom, and thus also does not allow cooling of the structural parts affected by hot circulation gas.
Fra DE offentliggørelsesskrift nr. 30 22 480 kendes en indret-35 ning til varmeveksling, hvor den gennem rørbunden tilbageførte afkølede kredsløbsgas føres således, at varmevekslerrørenes tilførselsområde og dermed også rørbunden til dels afkøles.DE Publication No. 30 22 480 discloses a device for heat exchange where the cooled circulating gas returned through the pipe bottom is passed so that the supply area of the heat exchanger tubes and thus also the pipe floor is partly cooled.
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2 således at en egentlig afkøling af rørbunden opnås. Dette er dog ikke tilstrækkelig til at formindske temperaturbelastningen på rørbunden.2 so that an actual cooling of the pipe bottom is obtained. However, this is not sufficient to reduce the temperature load on the pipe bottom.
5 Fra 6B patentskrift nr. 20 29 955 kendes en varmeveksler med en rørbund ved både indgangssiden og udgangssiden, hvorimellem varmevekslerrørene er anbragt. Den rørbund, der er anbragt mellem forkammer og varmevekslerkammer, er ikke udstyret med køleindretning i form af kølekanaler eller lignende. Ydermere 10 forsøges forekomsten af højere temperaturer i rørbunden undgået ved anvendelse af en tynd rørplade. I den øvre ende af varmevekslerindretningen er rørbunden derimod forsynet med yderligere kølekanaler, som på afgangssiden er forbundet med afgangskanaler, som munder ud i de kanaler, hvor vandet føres 15 bort.5 From 6B patent no. 20 29 955, a heat exchanger with a pipe bottom is known at both the inlet and outlet side, between which the heat exchanger pipes are arranged. The pipe bottom disposed between the front chamber and heat exchanger chamber is not equipped with a cooling device in the form of cooling ducts or the like. In addition, the occurrence of higher temperatures in the tube bottom is avoided by the use of a thin tube plate. On the other hand, at the upper end of the heat exchanger device, the pipe bottom is provided with additional cooling ducts, which are connected at the outlet side to outlet ducts which open into the channels where the water is conveyed.
Fra DE patentskrift nr. 35 33 219 kendes en rørbundsvarmeveksler, hvor rørene styres i en rørplade, og hvor en tynd og via langstrakte bæreflige understøttet yderligere bæreplade er 20 tilvejebragt. Rørene er ført løst gennem den yderligere bæreplade, således at rørene, der hvor de går gennem bærepladen, altid vil være omgivet af en ringformet spalte, hvorigennem kølevand kan ledes. Derved bliver bærepladen kølet via kølingsåbningerne, og ved hjælp af dette også den tynde rørpla-25 de.DE patent specification 35 33 219 discloses a pipe bottom heat exchanger, where the pipes are controlled in a pipe plate and in which a thin and further supporting plate supported by elongated carriers is provided. The tubes are passed loosely through the additional support plate, so that the tubes which, as they pass through the support plate, will always be surrounded by an annular gap through which cooling water can be passed. Thereby, the support plate is cooled via the cooling openings, and by this also the thin tube plate.
Opfindelsens formål er at anvise en indretning, hvor kølingen også sikkert kan opnås, når en fra den vandrette opbygning afvigende anbringelse af rørbundene skulle være nødvendig, det 30 vil sige at kølingen skulle være fuldstændig uafhængig af den effektive indbygningsstilling af rørbundtet.The object of the invention is to provide a device where the cooling can also be safely obtained when a deviation from the horizontal structure of the pipe bottoms is necessary, that is, the cooling should be completely independent of the effective installation position of the pipe bundle.
Ved en indretning af den indledningsvis angivne art bliver dette formål opfyldt ved, at indretningen er ejendommelig ved, 35 at rørbunden yderligere er forsynet med kølekanaler, som kan gennemstrømmes af vand/vanddampblanding, at kølekanalerne i rørbunden fra varmevekslersiden ikke er gennemgående, og at deIn a device of the type mentioned in the preamble, this object is fulfilled in that the device is characterized in that the pipe bottom is further provided with cooling ducts which can be flowed through water / steam mixture, that the cooling ducts in the pipe bottom from the heat exchanger side are not continuous and
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3 ved deres bundområder via fødekanaler er forbundet med en vandtilslutning, at det tilførte vand tilføres varmevekslingskammeret via kølekanalerne, at tilførselsrørene til den udvendigt kølede klokke er anbragt i en tilhørende udløbsstuds i 5 forkammeret, og at det dannede ringformede hulrum gennemstrømmes af afkølet kredsløbsgas.3 at their bottom regions via feed ducts is connected to a water connection, that the supplied water is supplied to the heat exchange chamber via the cooling ducts, that the supply pipes for the externally cooled bell are placed in an associated outlet nozzle in the pre-chamber and that the annular cavity formed is flowed through cooled circulating gas.
Herved opnås både en tilstrækkelig køling af rørbunden ved tvangsvis fremføring af kølevand og en køling af de med varm 10 kredsløbsgas påvirkede tilførselsstudse.In this way, both sufficient cooling of the pipe bottom is obtained by forced feeding of cooling water and cooling of the supply plugs affected by hot 10 gas.
De her anviste kølekanaler må i det væsentlige være jævnt fordelt over i det mindste det varme område af rørbunden. Ligeledes kan det alt efter opbygningen være tilstrækkeligt kun 15 at køle i specielt varme områder, som det vises i udførelsesformen for opfindelsen, hvor rørbunden segmentvis via fødekanaler er forbundet med kølekanalerne.The cooling ducts disclosed herein must be substantially evenly distributed over at least the hot area of the pipe bottom. Also, depending on the structure, it may be sufficient to cool only in particularly hot areas, as shown in the embodiment of the invention, where the tubular bottom is segmentally connected to the cooling channels via feed channels.
Det kan være specielt formålstjenligt, når kølevandstillednin-20 gen er udformet som forgreninger af fødevandsti1førselskana-lerne, det vil sige gennem kølekanalerne bliver en del af den ellers gennem varmeveksleren påsprøjtede kølevandsmængde ført direkte igennem.This may be particularly useful when the cooling water supply is designed as branches of the feed water supply channels, that is, through the cooling channels, a portion of the otherwise cooled water quantity injected through the heat exchanger is passed directly through.
25 I stedet for den direkte forbindelse mellem fødevandsti1før-selskanalerne og kølevandskanalerne kan kølevandskanalerne tilsluttes cirkulationen af vand i dampfrembringeren, hvorved det ovenfor nævnte selvfølgelig ikke kan udelukkes.Instead of the direct connection between the feed water supply ducts and the cooling water ducts, the cooling water ducts can be connected to the circulation of water in the steam generator, which of course cannot be excluded.
30 len speciel udførelsesform sigter opfindelsen på, at forkammeret er opbygget delt, og at mindst to klokker, der tilfører kredsløbsgassen for forskellige af NHø-konverteren udadtræden-de gasser, og den er udført med for eksempel samhørende samle-kamre for den afkølede kredsløbsgas. Denne målsætning fører 35 til en yderst kompakt opbygning, hvor også en trinvis køling af de samme kredsløbsgasser ved forskellige temperaturniveauer kan muliggøres i det samme hus.According to a particular embodiment, the invention is directed to the pre-chamber being divided and at least two bells supplying the circulating gas for different gases emitted by the NH4 converter, and it is made with, for example, associated collecting chambers for the cooled circulating gas. This objective leads to an extremely compact structure, where also stepwise cooling of the same circulating gases at different temperature levels can be possible in the same housing.
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Opfindelsen sigter også på, at mindst ét af tilførselsrørene til den udvendigt kølede klokke er anbragt i en tilhørende udløbsstuds, og at det ringformede hulrum, der opstår, kan gennemstrømmes af den afkølede kredsløbsgas. Dette fører ligele-5 des til en aflastning af konstruktionsdelene, specielt også en køling af apparatets tilførselsstudse.The invention also contemplates that at least one of the externally cooled bell feed tubes is disposed in an associated outlet spigot and that the annular cavity that arises can be flowed through the cooled circulating gas. This also leads to a relief of the structural parts, in particular cooling of the supply plug of the apparatus.
Ovenfor er allerede omtalt, at det er muligt at opbygge varmevekslere ganske forskelligt. Disse kan være anbragt stående 10 eller liggende eller på skrå. De kan også være udstyret med kun en rørbund, og således kan de kredsløbsgasførende rør være opbyggede som U-formede, bøjede, lange rørstykker, det vil sige at røret starter i rørbunden og afsluttes sammesteds, ganske vist i et andet segment. Opfindelsen er ikke begrænset 15 til disse opbygninger, det er således også påtænkt, at en indretning af samme art kan være udstyret med to rørbunde, og med et til hver rørbund forbundet forkammer, hvor i sådan et tilfælde opfi ndel sen anviser, at også det andet forkammer er delt i to ledekamre til to forskellige NH3~konvertergasser, hvorved 20 mindst den ene af rørbundene er udstyret med kølekanaler. I endnu en udførelsesform for opfindelsen kan begge rørbunde i det mindste i segmenter være udstyret med kølekanaler.It has already been mentioned above that it is possible to build heat exchangers quite differently. These may be placed upright or lying or inclined. They may also be equipped with only one pipe bottom, and thus the circuit gas conducting pipes may be constructed as U-shaped, curved, long pieces of pipe, that is, the pipe starts in the pipe floor and ends together, albeit in another segment. The invention is not limited to these structures, it is thus also contemplated that a device of the same kind may be equipped with two pipe bottoms and with a front chamber connected to each pipe floor, where in such a case the invention indicates that the the second chamber is divided into two conduits for two different NH3 converter gases, whereby at least one of the tubes is equipped with cooling ducts. In yet another embodiment of the invention, at least in segments, at least in segments, it may be provided with cooling ducts.
Opfindelsen forklares i det følgende under henvisning til teg-25 ningen, hvor fig. 1 viser indretningen af en varmeveksler med kølet rørbund , 30 fig. 2 en udførelsesform med to rørbunde, hvor mindst den ene er afkølet, fig. 3 en udførelsesform for opbygningen ifølge fig. 2, 35 fig. 4 en varmeveksler med modstrøms varmevekslerrør og for-og omløbskamre, hvor begge rørbunde i det mindste i visse områder er afkølet, 5The invention is explained in the following with reference to the drawing, in which: FIG. 1 shows the arrangement of a heat exchanger with chilled tubular bottom; FIG. 2 shows an embodiment with two tubes, at least one of which is cooled; FIG. 3 shows an embodiment of the structure according to FIG. 2, 35 FIG. 4 is a heat exchanger with countercurrent heat exchanger tubes and front and circulation chambers where both tubes are cooled at least in certain areas; 5
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fig. 5 endnu en udførelsesform for varmeveksleren med mindst to i områder afkølede rørbunde, hvor alle de i fig. 1 til 5 viste indretninger i princip er gengivet i snit, 5 fig. 6 snit gennem et forkammer i en udførelsesform, fig. 7 et tilsvarende snit i et forkammer ifølge en anden udførelsesform , 10 fig. 8 placering af hullerne med kølekanalerne i rørbunden ifølge en opbygning, som i fig. 6, og fig. 9 hullerne i en rørbund ved en opbygning ifølge fig. 7.FIG. 5 shows yet another embodiment of the heat exchanger with at least two tubes cooled in areas, all of which in FIG. 1 to 5 are in principle shown in section; 6 is a section through a front chamber in one embodiment; FIG. 7 is a sectional view of a front chamber according to another embodiment; FIG. 8 shows the holes with the cooling ducts in the pipe bottom according to a structure, as in FIG. 6, and FIG. 9 shows the holes in a pipe bottom in a structure according to FIG. 7th
15 Det skal bemærkes, at i gennemgangen af figurerne vil de samme betegnelser blive benyttet, når det funktionsmæssigt drejer sig om de samme eller lignende dele, i givet fald vil der varieres med små bogstaver.15 It should be noted that in the examination of the figures, the same names will be used when it is functionally the same or similar parts, if any, lower case letters will be varied.
20 Den i figurerne viste varmeveksler, og som helhed betegnet med 1, består af et trykmodstandsdygtigt hus 2 med to kamre, nemlig et varmevekslerkammer 3 og et forkammer 5, der er delt af en skillevæg 4 delt i to områder med et forkammerområde 5a og et forkammerområde 5b. Forkammeret 5 og varmevekslerkamrene 3 25 bliver delt af en rørbund 6.The heat exchanger shown in the figures, and as a whole denoted by 1, consists of a pressure-resistant housing 2 with two chambers, namely a heat exchanger chamber 3 and a pre-chamber 5 divided by a partition 4 divided into two regions with a pre-chamber area 5a and a anterior chamber area 5b. The prechamber 5 and the heat exchanger chambers 25 are divided by a tube bottom 6.
I det viste eksempel ifølge figuren består en ejendommelighed i, at der i huset 2 er anbragt to varmevekslere, hvortil fører forkamre 5 via skillevæggen 4. På dette sted skal bemærkes, at 30 opfindelsens beskyttelsesomfang ikke indskrænkes ved de viste eksempler. I det væsentlige er det opbygningen af rørbundene, som vil blive beskrevet grundigt i det efterfølgende. Herefter kommer en tilbundsgående konstruktionsbeskrivelse af indretningen 1.In the illustrated example according to the figure, a peculiarity consists in the fact that in the housing 2 two heat exchangers are provided, leading to the chambers 5 via the partition wall 4. At this point it should be noted that the scope of the invention is not limited by the examples shown. In essence, it is the structure of the pipe bottoms which will be described in detail below. Next comes an in-depth design description of the device 1.
Hvert forkammer 5a henholdsvis 5b er udstyret med en kun antydningsvis vist rørstuds 7a henholdsvis 7b, der er udstyret 35Each anterior chamber 5a and 5b, respectively, is provided with a pipe support 7a and 7b, which are only indicated,
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6 med et indvendigt tilførselsrør 8a henholdsvis 8b, der er placeret koncentrisk med rørstudsen 7a henholdsvis 7b således, at der opstår et ringformet hulrum 9a henholdsvis 9b. Rørstudsene 8a henholdsvis 8b fører til varmgasforkamrene henholdsvis 5 klokkerne 10a henholdsvis 10b, som segmentvis forsyner rørbunden 6. Varmeveks1 errørene, der som helhed betegnes med 11a henholdsvis 11b, er i udførelsesformen ifølge fig. 1 bøjet i U-form, det vil sige ført gennem varmevekslerkamrene 3, og i den øvre ende udstyret med en bøjning, og derefter ført tilba-10 ge gennem rørbunden 6, således at de afkølede gasser strømmer tilbage i forkammeret 5a henholdsvis 5b, og der bliver udledt gennem de ringformede kamre 9a henholdsvis 9b, hvorved det opnås, at rørstudsene 7a og 7b kan holdes på en ens lav temperatur ligesom vaggene i forkammeret 5.6 with an inner supply pipe 8a and 8b, respectively, located concentrically with the pipe nozzles 7a and 7b, respectively, so that an annular cavity 9a and 9b are formed. The pipe nozzles 8a and 8b, respectively, lead to the hot gas chambers 5 and 10a and 10b, respectively, which segmentally supply the pipe bottom 6. The heat exchange 1 pipes, which are generally designated 11a and 11b respectively, are in the embodiment according to FIG. 1, bent in a U-shape, that is, passed through the heat exchanger chambers 3, and at the upper end equipped with a bend, and then passed back through the pipe bottom 6, so that the cooled gases flow back into the pre-chamber 5a and 5b respectively. which is discharged through the annular chambers 9a and 9b, respectively, whereby it is obtained that the pipe nozzles 7a and 7b can be kept at an equally low temperature just like the cradles in the anterior chamber 5.
1515
Forkamrene og gasføringen kan dog være opbygget på flere forskellige måder; nogle varianter bliver forklaret nærmere i det følgende, uden derfor at indskrænke opfindelsens beskyttelsesomfang. De væsentlige opbygningselementer er i det efterføl-20 gende udførelseseksempel de samme.However, the front chambers and gas guide may be constructed in several different ways; Some variants are explained in more detail below, without therefore limiting the scope of the invention. In the following embodiment, the essential structural elements are the same.
Det for opfindelsen betydelige er opbygningen af rørbundene 6. Disse udviser som vist en række af kølekanaler 12, der i den side, der vender mod varmevekslerkamrene 3, er åbne, og 25 hvor rørbundene 6 i hvert fald ikke er helt gennemborede, og yderligere at de er forbundet i deres nedre ende gennem fødekanaler 13. Disse fødekanaler 13 er forbundet med en udvendig vandtilførsel 14, som eksempelvis består af en halvcirkelformet kølering 15 rundt langs indretningen 1.What is important for the invention is the construction of the pipe bottoms 6. These, as shown, exhibit a series of cooling ducts 12 which are open in the side facing the heat exchanger chambers 3 and 25 in which the pipe bottoms 6 are at least not completely pierced, and further that they are connected at their lower end through feed ducts 13. These feed ducts 13 are connected to an external water supply 14, which consists, for example, of a semicircular cooling ring 15 around the device 1.
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Varmevekslingsmediet, f.eks. vand, omdannes til damp henholdsvis en vand/dampblanding, og tilføres en bortledningsstuds 16 fra varmevekslerkammeret 3, det opvarmede medium henholdsvis fordampede medium eller den omtalte blanding forlader varme-35 vekslerkammeret .3 gennem en studs 17.The heat exchange medium, e.g. water, is converted to steam or a water / vapor mixture, respectively, and is fed to a discharge plug 16 from the heat exchanger chamber 3, the heated medium or evaporated medium, or the said mixture, leaving the heat exchanger chamber 3 through a stud 17.
Ifølge opfindelsen opnås, at det medium, der afkøler rørbunden, er det samme som varmevekslermediet, som tilføres varmeAccording to the invention it is obtained that the medium which cools the tube bottom is the same as the heat exchanger medium which is applied to heat.
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7 vekslerkamrene 3 gennem studsen 16, og at dette medium umiddelbart blandes til formålet, og at det gennem vandtilførslen 14 indtrængende vand direkte bliver født ind i varmevekslerkammeret 3 gennem kølekanalerne 12.7 the exchanger chambers 3 through the plug 16, and that this medium is immediately mixed for the purpose, and that the water entering through the water supply 14 is directly fed into the heat exchanger chamber 3 through the cooling ducts 12.
55
Udførelsesformen i fig. 2 udviser i det væsentlige den samme opbygning som indretningen 1, ganske vist med den undtagelse, at de to rørbunde 6 henholdsvis 18 er påtænkt udstyret med to forkamre 5a og 5b såvel som to ledekamre 19a og 19b.The embodiment of FIG. 2 shows essentially the same structure as the device 1, except that the two pipe bottoms 6 and 18 respectively are intended to be equipped with two chambers 5a and 5b as well as two guide chambers 19a and 19b.
1010
Det i fig. 3 viste yderligere ændrede udførelseseksempel er ligeledes med to rørbunde 6 og 18. Her bliver ganske vist det kølende medium ført gennem varmeveksleren 3 uden omledning. Her er forkammerstudsene 7a og 7b specielt kølede via et gen-15 nem rørstudsene 20a ob 20b tilført kølemedium. Dette kan naturligvis være en procesgas, som forlader kamrene 21a og 21b gennem rørstudsen 20a henholdsvis 20b. Dette kan naturligvis også være et andet medium.The FIG. 3, the two further modified exemplary embodiments are likewise with two pipe bottoms 6 and 18. Here, though, the cooling medium is passed through the heat exchanger 3 without diversion. Here, the pre-chamber nozzles 7a and 7b are specially cooled via cooling medium supplied through the pipe nozzles 20a ob 20b. This can, of course, be a process gas leaving the chambers 21a and 21b through the pipe nozzles 20a and 20b, respectively. Of course, this can also be another medium.
20 Hvis nu opbygningen ifølge fig. 2 og 3 kun havde en afkølet rørbund 6 henholdsvis 18 (i det forestillede tilfælde drejer det sig om rørbunden 6), ses i fig. 4 en udførelsesform med to i det mindste delvis afkølede rørbunde, som af denne grund begge er betegnet med henvisningstallet 6a. I det tilfælde 25 bliver strømmene i begge varmevekslere modsat rettede i hvert fald i det fælles hus, det vil sige hvert forkammer 5a henholdsvis 5b er placeret vis a vis med et ledekammer 19a henholdsvis 19b. Her er, på grund af særegenheden ved rørbundskølingen, anbragt hver af de to vandtilførsler 14a henholdsvis 30 14b.20 If the structure according to FIG. 2 and 3 had only one cooled tube bottom 6 and 18, respectively (in the imagined case the tube bottom 6), seen in FIG. 4 shows an embodiment with two at least partially cooled tubular bottoms, both for this reason being both designated by reference numeral 6a. In the case 25, the currents in both heat exchangers are opposite at least directed in the common housing, that is, each anterior chamber 5a and 5b, respectively, is positioned visually with a conduit chamber 19a and 19b, respectively. Here, because of the peculiarity of the tube bottom cooling, each of the two water inlets 14a and 14b are respectively provided.
Endnu en udførelsesform ses i fig. 5 skemat i sk. Her vises en vandret liggende varmeveksler. Selvfølgelig kan også de andre udførelsesformer i praksis anvendes vandretliggende, det er 35 ikke det, opfindelsen drejer sig om.Yet another embodiment is seen in FIG. 5 schematics in sk. Here, a horizontal heat exchanger is shown. Of course, in practice, the other embodiments can also be used horizontally, that is not what the invention is about.
Ved udformningen i fig. 5 er forkamrene henholdsvis ledekamrene ikke opbygget delt. Her gennemstrømmer to gasstrømme mod-In the embodiment of FIG. 5, the front chambers and the lead chambers, respectively, are not divided. Here two gas streams flow through
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863641710 DE3641710A1 (en) | 1986-12-06 | 1986-12-06 | DEVICE FOR EXCHANGING HEAT BETWEEN A CIRCUIT GAS AND WATER LEAVING AN NH (DOWN ARROW) 3 (DOWN ARROW) CONVERTER |
| DE3641710 | 1986-12-06 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK526287D0 DK526287D0 (en) | 1987-10-07 |
| DK526287A DK526287A (en) | 1988-06-07 |
| DK165142B true DK165142B (en) | 1992-10-12 |
| DK165142C DK165142C (en) | 1993-02-22 |
Family
ID=6315600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK526287A DK165142C (en) | 1986-12-06 | 1987-10-07 | DEVICE FOR HEAT EXCHANGE BETWEEN AN CIRCUIT GAS AND WATER FROM AN NH3 CONVERTER |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0274006B1 (en) |
| JP (1) | JPH01200195A (en) |
| CN (1) | CN1011540B (en) |
| AT (1) | ATE54746T1 (en) |
| AU (1) | AU606084B2 (en) |
| CA (1) | CA1303020C (en) |
| DE (2) | DE3641710A1 (en) |
| DK (1) | DK165142C (en) |
| ES (1) | ES2016607B3 (en) |
| FI (1) | FI874517A (en) |
| NO (1) | NO166555C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3642673C1 (en) * | 1986-12-13 | 1988-01-21 | Borsig Gmbh | Heat exchanger for cooling gases from ammonia synthesis |
| US5068057A (en) * | 1989-06-12 | 1991-11-26 | Eastman Kodak Company | Conversion of carbon dioxide to carbon monoxide |
| DE3930205A1 (en) * | 1989-09-09 | 1991-03-14 | Borsig Babcock Ag | TUBE BUNCH HEAT EXCHANGER |
| US6588379B2 (en) * | 2001-08-06 | 2003-07-08 | Bwx Technologies, Inc. | Multi-stream energy source steam generator system |
| JP5658147B2 (en) | 2008-06-26 | 2015-01-21 | ハルドール・トプサー・アクチエゼルスカベット | Process for producing ammonia |
| DK3406999T3 (en) | 2017-05-26 | 2021-02-01 | Alfa Laval Olmi S P A | SMOKE PART HEAT EXCHANGER |
| CN112414177A (en) * | 2020-12-02 | 2021-02-26 | 中国科学院上海应用物理研究所 | Tubular heat exchange device, heat exchange method and application |
| CN112942583B (en) * | 2021-01-13 | 2023-11-17 | 唐山海港市政工程有限公司 | Environment-friendly energy-saving building |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR485126A (en) * | 1916-04-26 | 1917-12-13 | Oerlikon Maschf | Tubular heat exchanger |
| US1987891A (en) * | 1934-06-09 | 1935-01-15 | C H Leach Company | Heat exchange apparatus |
| DE1096127B (en) * | 1957-12-21 | 1960-12-29 | Babcock & Wilcox Dampfkessel | Connection of pipes with a thick-walled pipe plate |
| FR1407775A (en) * | 1964-06-24 | 1965-08-06 | Commissariat Energie Atomique | Tube sheet and enclosure including application |
| NL7106714A (en) * | 1971-05-17 | 1972-11-21 | ||
| AT321329B (en) * | 1973-02-15 | 1975-03-25 | Waagner Biro Ag | Heat exchangers, in particular tube bundle heat exchangers |
| US4117885A (en) * | 1974-09-30 | 1978-10-03 | Foster Wheeler Limited | Slab header |
| DE2708696A1 (en) * | 1977-03-01 | 1978-09-07 | Deggendorfer Werft Eisenbau | MULTI-LAYER TUBE FLOOR FOR HEAT EXCHANGER |
| NL7905640A (en) * | 1978-09-14 | 1980-03-18 | Borsig Gmbh | HEAT EXCHANGER PROVIDED WITH A PIPE BUNDLE. |
| DE3022480A1 (en) * | 1980-06-14 | 1982-01-07 | Uhde Gmbh, 4600 Dortmund | DEVICE FOR EXCHANGING HEAT BETWEEN AN NH (DOWN ARROW) 3 (DOWN ARROW) CONVERTER LEAVING CYCLE GAS AND WATER |
| DE3049409C2 (en) * | 1980-12-23 | 1983-12-01 | Borsig Gmbh, 1000 Berlin | Equipment for steam generation in ammonia synthesis plants |
| JPS58221715A (en) * | 1982-06-17 | 1983-12-23 | Nippon Denso Co Ltd | Air-conditioner for motor vehicle |
| DE3323781C2 (en) * | 1983-07-01 | 1986-04-03 | Uhde Gmbh, 4600 Dortmund | Device for cooling thick-walled, horizontally arranged tube sheets of heat exchangers |
| DE3533219C1 (en) * | 1985-09-18 | 1986-11-13 | Borsig Gmbh, 1000 Berlin | Tube bundle heat exchanger |
-
1986
- 1986-12-06 DE DE19863641710 patent/DE3641710A1/en not_active Withdrawn
-
1987
- 1987-09-26 EP EP87114080A patent/EP0274006B1/en not_active Expired - Lifetime
- 1987-09-26 DE DE8787114080T patent/DE3763820D1/en not_active Expired - Fee Related
- 1987-09-26 ES ES87114080T patent/ES2016607B3/en not_active Expired - Lifetime
- 1987-09-26 AT AT87114080T patent/ATE54746T1/en not_active IP Right Cessation
- 1987-10-07 DK DK526287A patent/DK165142C/en not_active IP Right Cessation
- 1987-10-13 FI FI874517A patent/FI874517A/en not_active IP Right Cessation
- 1987-10-14 NO NO874295A patent/NO166555C/en unknown
- 1987-10-21 JP JP62264047A patent/JPH01200195A/en active Pending
- 1987-10-27 AU AU80154/87A patent/AU606084B2/en not_active Ceased
- 1987-11-06 CA CA000551237A patent/CA1303020C/en not_active Expired - Fee Related
- 1987-12-01 CN CN87108080A patent/CN1011540B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0274006B1 (en) | 1990-07-18 |
| DK526287A (en) | 1988-06-07 |
| NO874295D0 (en) | 1987-10-14 |
| CA1303020C (en) | 1992-06-09 |
| CN1011540B (en) | 1991-02-06 |
| FI874517A (en) | 1988-06-07 |
| JPH01200195A (en) | 1989-08-11 |
| FI874517A0 (en) | 1987-10-13 |
| DE3641710A1 (en) | 1988-06-16 |
| EP0274006A1 (en) | 1988-07-13 |
| DK526287D0 (en) | 1987-10-07 |
| DK165142C (en) | 1993-02-22 |
| ES2016607B3 (en) | 1990-11-16 |
| DE3763820D1 (en) | 1990-08-23 |
| AU606084B2 (en) | 1991-01-31 |
| AU8015487A (en) | 1988-06-09 |
| CN87108080A (en) | 1988-06-22 |
| NO874295L (en) | 1988-06-07 |
| NO166555C (en) | 1991-08-07 |
| ATE54746T1 (en) | 1990-08-15 |
| NO166555B (en) | 1991-04-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |