DE888256C - Process for the continuous elimination of humidity in nitrogen or oxygen recovery systems using the compression process - Google Patents

Process for the continuous elimination of humidity in nitrogen or oxygen recovery systems using the compression process

Info

Publication number
DE888256C
DE888256C DED1972D DED0001972D DE888256C DE 888256 C DE888256 C DE 888256C DE D1972 D DED1972 D DE D1972D DE D0001972 D DED0001972 D DE D0001972D DE 888256 C DE888256 C DE 888256C
Authority
DE
Germany
Prior art keywords
nitrogen
humidity
recovery systems
continuous elimination
oxygen recovery
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
Application number
DED1972D
Other languages
German (de)
Inventor
Walter Baer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhodiaceta AG
Original Assignee
Rhodiaceta AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rhodiaceta AG filed Critical Rhodiaceta AG
Priority to DED1972D priority Critical patent/DE888256C/en
Application granted granted Critical
Publication of DE888256C publication Critical patent/DE888256C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/16Filtration; Moisture separation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/08Separating gaseous impurities from gases or gaseous mixtures or from liquefied gases or liquefied gaseous mixtures

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

Verfahren zur kontinuierlichen Beseitigung der Luftfeuchtigkeit bei Stickstoff- oder Sauerstoffgewinnungsanlagen nach dem Kompressionsverfahren Bei, der Gewinnung von Stickstoff oder Sauerstoff aus der Luft auf dem Wege,deer Lu,ftverflüsisigung macht es besondere Schwierigkeiten, die Luft völlig frei von Feue'htigkeit zu bekommen. Bei den üblichen, in mehreren Stufen arbeitenden kleineren Apparaturen verfährt man zunächst so, daß auf den ersten Stufen, bei der die Luft nur verhältnismäßig wenig komprimiert wird, das Wasser einmal durch das Komprimieren selbst in Abscheidekerzen zum Abscheiden gebracht und andererseits bei, Odem Durchschicken der auf einige Atmosphären kom primierten Luft durch Lauge zur Koh,lendioxydabschevdung gebunden wird. Auf dien folgenden Stufen, auf denen meistens auf 6o -bis aoo Atmosphä;ren komprimiiert wimd,wird eine weitere Menge Luftfeuchtigkeit abgeschieden. Unmittelbar vor,der Trennsätule führt man die Luft noch einmal durch mit Chemikalien. beschickte Trocknungsfllasc'hen, um hierdurch ,die Luftfeuchtigkeit nahezu quantitativ zu beseitigen. Je nach der Anzahl der zwr Anwendung kommenden Trocknungsflaschen läßt sich ein mehr oder weniger großer Trocknungserfo.lg erzielen.Process for the continuous elimination of moisture in the air Nitrogen or oxygen recovery systems based on the compression process. the extraction of nitrogen or oxygen from the air on the way, deer air liquefaction makes it particularly difficult to get the air completely free of moisture. Proceeds with the usual smaller apparatuses working in several stages one at first so that on the first steps, in which the air is only proportionately Little is compressed, the water once by compressing itself in separator candles brought to the separation and on the other hand with, breath sending the on some Atmospheres compressed air bound by lye to carbon dioxide deposition will. On the following levels, mostly on 6o to aoo atmospheres compressed wimd, a further amount of air moisture is deposited. Direct before, the separation column leads the air through again with chemicals. sent Drying bottles, in order to thereby eliminate the air humidity almost quantitatively. Depending on the number of drying bottles to be used, a achieve a more or less high drying success.

Es ist jedoch niemalis möglich, die Feuchtigkeit ganz quantitativ zu entfernen, so daß immer noch Feuchti,gkeitsispuren in den Trennungsapparat gelangen und sich dort an den Wandiu.ngen als Eis absetzen und i:m Zeitraum von etwa 221o bis 15,0i Stunden die Sauerstoff- und Stickstoffgewinnungsanlage unbrauchbar machen. Man muß erst ,durch mehrere Stunden hindurch Iden vereisten Trennungsapparat auftauen, ehe mit der ganzen Vorrichtung weitergearbeitet wenden kann: Auch wird. "bei nicht ganz sorgfältiger Bedienung der Apparatur (das abgeschiedene Wasser nicht rechtzeitig abgelassen, so daß die gleIchen entstehen.However, it is never possible to quantify the humidity to be removed so that traces of moisture still get into the separation apparatus and settle there on the walls as ice and in a period of about 221o until 15.0i hours the oxygen and nitrogen recovery system to make something useless. You first have to ice the Ides for several hours Thaw separating apparatus before continuing to work with the whole apparatus can: also will. "if the apparatus is not operated very carefully (the separated Water not drained in time, so that the same result.

Es wurde nun ;gefunden, @daß sich die ununterbrochene Laufdauer einer solchen Sauerstoff- und Stickstoffgewinnu.n@gsanlagedadurch auf mindestens 400 Stunden.er'hö:hen läßt, daß zur Feuchtigkeit.sabscheidung in die Sauerstoff- und Stickstoffgewinnungsvorrichtung in den versohied@nen Kompressions,stufen vordem Durchleitender Luft (durch die mit Chemikalien beschickten Trocknun@gsflaschen automatisch sich entleerende Abscheidetöpfe, z. B. von der Art der üblichen Kondenstöpfe, eingebaut werden.It has now been found that the uninterrupted running time of a Such oxygen and nitrogen recovery can be increased to at least 400 hours lets that for moisture separation in the oxygen and nitrogen recovery device in the various compression stages before the air is passed through (through the with Drying bottles filled with chemicals, separating pots that are automatically emptied, z. B. of the type of the usual condensate pots, can be installed.

Der Einbau @dieser Kondenstöpfe soll heispielsweise auf der ersten Stufe erfolgen zwischen dem , Kompressor und dem Lau,gentopf, durch. den die mäßig komprimierte Luft zur Kodhlendioxydabscbeidunggeschickt wird. Der zweite Kondenstopf befindet 4sich zwischen der zweiten und dritten Kompressionsstufe. Für diese (beiden Kondenstöpfe genügt ein Nenndruck von 16 atü. Ein -dritter soll in ,der Hochkompres(sion.sstufe vor den Trocknungsflaschen eingeschaltet werden; er muß einen Nenn druck von. 2,ou@ bis 25o Atmosphäsren haben.The installation of these condensate pots should, for example, be on the first Stage take place between the, compressor and the Lau, gentopf, through. the moderate compressed air is sent to the carbon dioxide barrier. The second condensate trap 4 is between the second and third compression stages. For these (both A nominal pressure of 16 atmospheres is sufficient for the condensation traps. A third should be in, the high compression (sion.sstufe before the drying bottles are switched on; it must have a nominal pressure of. 2, ou @ up to 25o atmospheres.

Durch die oben beschriebene Anordnung der Kondenstöpfe läßt sich einmal die Laufdauer der Stickstoffgewinnungsanlage erheblich erhöhen; sie steigt von 1,20 bis 150 Stunden auf mindestens 400 Stunden. Weiterhin isst -der Chemikalienverbrauch in !den Trocknungsflaschen nach der vierten, Kompressionsstuie erheblich geringür; es lassen sich bis zu 8o 14 Chemikalien ersparen. Würde man dagegen die Laufdauer der Anlage durch Erhöhung ,der Anzahl der Trocknungsflaschen verlängern, so ließe sich selbst mit einem auf @da-s, Vielfache gesteigerten Chemikalienverlbrauch .die Laufdauer nicht in idem Maße wie dlu.rch die vorliegende Erfindung erhöhen.The above-described arrangement of the condensate pots can be used once Significantly increase the running time of the nitrogen recovery plant; it increases from 1.20 up to 150 hours to at least 400 hours. Furthermore, the consumption of chemicals eats in the drying bottles after the fourth, compression stage considerably less; it can save up to 8o 14 chemicals. If you would on the other hand the running time of the system by increasing the number of drying bottles, so let itself with a consumption of chemicals that has increased many times over to @ da-s Do not increase the running time to the same extent as the present invention.

Ein weiterer Vorteil der -beschriebenen Arbeitsweise liegt darin, daß die Wartung der S@auerstoffü.nid Stickstoffgewinnungsanlage erhelblich einfacher wird; während man sonst ständig bei der Anlage eine Wartung nötig hat, kann man sich nunmehr auf eine gelegentliche Kontrolle der Anlage beschrämken. Selbst die bei -größeren Maschinen vorgesehenen Vorrichtüngen zur Wasserabschei,diung aus der Luft durch Vorkühlen erfordern eine etwa halbstündige Wartung.Another advantage of the working method described is that that the maintenance of the S@auerstoffü.nid nitrogen recovery system is considerably easier will; while the maintenance of the system is otherwise necessary, you can now limit yourself to an occasional inspection of the system. Even the For larger machines provided devices for water separation, diung from the Pre-cooling air requires approximately half an hour of maintenance.

Claims (1)

PATLNTANSPRUCII: Verfahren zur kontinuierlichen Beseitigung ,der Luftfeuchtigkeit bei Sauerstoff- oder Sbickstoffgewinnungsanlagen nach dem Kompressionsverfahren, dadurch gekennzeichnet, daß in die einzelnen Kompressionsstufen automatisch sich entleerende Abscheidetöpfe, wie Kondenstöpfe, eingebaut werden.PATLNTANSPRUCII: Process for the continuous elimination of air humidity in the case of oxygen or nitrogen recovery plants using the compression process, characterized in that automatically in the individual compression levels Emptying separator pots, such as condensation pots, are installed.
DED1972D 1943-11-20 1943-11-20 Process for the continuous elimination of humidity in nitrogen or oxygen recovery systems using the compression process Expired DE888256C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED1972D DE888256C (en) 1943-11-20 1943-11-20 Process for the continuous elimination of humidity in nitrogen or oxygen recovery systems using the compression process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED1972D DE888256C (en) 1943-11-20 1943-11-20 Process for the continuous elimination of humidity in nitrogen or oxygen recovery systems using the compression process

Publications (1)

Publication Number Publication Date
DE888256C true DE888256C (en) 1953-08-31

Family

ID=7029620

Family Applications (1)

Application Number Title Priority Date Filing Date
DED1972D Expired DE888256C (en) 1943-11-20 1943-11-20 Process for the continuous elimination of humidity in nitrogen or oxygen recovery systems using the compression process

Country Status (1)

Country Link
DE (1) DE888256C (en)

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