DE3148426C2 - Extraction device for cold gas - Google Patents
Extraction device for cold gasInfo
- Publication number
- DE3148426C2 DE3148426C2 DE3148426A DE3148426A DE3148426C2 DE 3148426 C2 DE3148426 C2 DE 3148426C2 DE 3148426 A DE3148426 A DE 3148426A DE 3148426 A DE3148426 A DE 3148426A DE 3148426 C2 DE3148426 C2 DE 3148426C2
- Authority
- DE
- Germany
- Prior art keywords
- cold gas
- liquid
- pressure generator
- removal device
- extraction device
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
- F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/01—Purifying the fluid
- F17C2265/015—Purifying the fluid by separating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Der Flüssigkeits-Gas-Phasentrenner, mit welchem aus einem mit einer kryogenen Flüssigkeit gefüllten Isolierbehälter Kaltgas für ein Kühlsystem über eine Leitung entnehmbar ist, weist einen Schalldruckgenerator (1.2), insbesondere einen Ultraschallgeber auf, dessen schwingende Fläche bzw. Flächen (1.21, 1.22, 1.23) gegen die zuströmende Flüssigkeit (LH ↓2) gerichtet ist bzw. sind.The liquid-gas phase separator, with which cold gas for a cooling system can be taken from an insulating container filled with a cryogenic liquid via a line, has a sound pressure generator (1.2), in particular an ultrasound transmitter, the oscillating surface or surfaces (1.21, 1.22, 1.23) is or are directed against the inflowing liquid (LH ↓ 2).
Description
2o 2 o
2525th
Die Erfindung betrifft eine Entnahmevorrichtung für Kaltgas, welches aus einem mit einer kryogenen Flüssigkeit gefüllten Isolierbehälter für ein Kühlsystem entnommen wird.The invention relates to an extraction device for cold gas, which consists of a cryogenic Liquid-filled insulating container for a cooling system is removed.
Zur Speicherung von flüssigem Wasserstoff, Helium, Stickstoff, etc. im schwerelosen Raum über eine längere Zeit ist es bekannt, die im wesentlichen aufgrund von Kapillarkräften im Isolierbehälter verteilte kryogene Flüssigkeit mittels eines auf Kapillarkräften beruhenden ": JSammelsystems in flüssiger Form abzuziehen und über v|ein Drosselventil sowie einen Wärmetauscher zu 1K1 !verdampfen (Cryogenic Engineering Conference, |i 0.—14.8.81, San Diego). Derartige Phasentrenner, die • '{die relativ geringe Oberflächenspannung von kryogeyjnen Flüssigkeiten zur Unterscheidung von Flüssigkeit „.And Gas ausnutzen, sind vergleichsweise aufwendig, "wobei die eigentliche Phasentrennung lediglich in einem Bereich mit extrem geringen Abmessungen (wenige μηι) •' stattfindet.To store liquid hydrogen, helium, nitrogen, etc. in weightless space over a longer period of time, it is known to draw off the cryogenic liquid, which is essentially distributed in the insulating container due to capillary forces, by means of a ": J collection system based on capillary forces in liquid form and via v | vaporize a throttle valve and a heat exchanger to 1 K 1 ! (Cryogenic Engineering Conference, August 8-14, 81, San Diego) Utilizing gas are comparatively expensive, "the actual phase separation only taking place in an area with extremely small dimensions (a few μm) • '.
Es ist Aufgabe der Erfindung, eine Entnahmevorrichtung zu schaffen, mit welcher aus einem mit einer kryogenen Flüssigkeit gefüllten Isolierbehälter ausschließlich Kaltgas auch im schwerelosen Raum oder bei heftig bewegtem Isolierbehälter entnehmbar ist.It is the object of the invention to provide a removal device to create, with which from an insulating container filled with a cryogenic liquid exclusively Cold gas can also be removed in a weightless room or when the insulating container is vigorously moved.
Diese Aufgabe wird durch eine nach den kennzeichnenden Merkmalen des Patentanspruchs 1 ausgebildete Entnahmevorrichtung gelöst.This object is achieved by a trained according to the characterizing features of claim 1 Removal device released.
Die erfindungsgemäße Entnahmevorrichtung liefert bereits am Schalldruckgenerator ausschließlich Gas bzw. Sattdampf, der dann nachfolgend nur noch durch konventionelle Drosselregelung weiterbehandelt wer-■den kann.The extraction device according to the invention supplies only gas at the sound pressure generator or saturated steam, which is then only further treated by conventional throttle control can.
Die Erfindung wird im folgenden anhand einiger in den Figuren teilweise schematisch dargestellter Ausführungsbeispiele beschrieben. Es zeigtThe invention is described below with the aid of some exemplary embodiments that are partially shown schematically in the figures. It shows
F i g. 1 eine Entnahmevorrichtung für ein im Weltall zur Anwendung kommendes Kühlsystem;F i g. 1 a removal device for one in space cooling system used;
F i g. 2 eine Entnahmevorrichtung mit trichterförmiger Schallerzeugungsfläche;F i g. 2 a removal device with a funnel-shaped Sound generating area;
Fig.3 eine Entnahmevorrichtung gemäß Fig.2 mit Gasfluß durch den Schalfdruckgenerator,3 shows a removal device according to FIG Gas flow through the sleep pressure generator,
F i g. 4 eine Entnahmevorrichtung mit kegelförmiger Schüller/eufeungsfJilche und Gusiluß durch den Sehalldruckgeneraior. F i g. 4 a removal device with a conical Schüller / EufeungsfJilche and Gusiluß by the visual pressure generator.
Die in Fig. 1 dargestellte Entnahmevorrichtung dient beispielsweise innerhalb eines kryogenen Kühlsystem;· mit flüssigem Wasserstoff für die Anwendung im Weltraum da/u, daii an ihrem Austritt nur noch reines Gas anfällt, das über ein nachgeschaltetes Abgat,rohrsystem 2 /ur Kühlung von beispielsweise Strahlungsschilden. Infrarotsystemen u.dgl. verwendet wird, bevor es in den Weltraum abströmt. Da die eigentliche Trennung zwischen der Gas- und der Flüssigkeitsphase bereits am Ausgang der Entnahmevorrichtung 1 abgeschlossen ist und an dem nachgeschaltete,) Drossel-Regelventil 3 nur noch Gas ankommt, findet die zur Selbstkühlung der kryogenen Flüssigkeit über den Wärmetauscher 4 erforderliche Temperatursenkung nur noch in der Gasphase statt. Durch diese Temperatursenkung und den Wärmetausch des abströmenden Gases mit der flüssigen Phase innerhalb des Isolierbehälters 5 wird ,errejchi, daß die auch bei guier Isolierung verbleibende restliche Wärmebelastung durch Strahlung u. dgl. nicht 4zur Erwärmung der kryogenen Flüssigkeit im Tank führt.The extraction device shown in Fig. 1 is used, for example, within a cryogenic cooling system; · with liquid hydrogen for use in space because only pure gas is obtained at its outlet, which is via a downstream exhaust pipe system 2 / for cooling, for example Radiation shields. Infrared systems and the like before it is released into space. Since the actual separation between the gas and the liquid phase has already been completed at the outlet of the extraction device 1 and only gas arrives at the downstream,) throttle control valve 3, the temperature reduction required for self-cooling of the cryogenic liquid via the heat exchanger 4 only takes place in the gas phase instead. This lowering of temperature and the heat exchange of the outflowing gas with the liquid phase within the insulating container 5 ensures that the residual heat load from radiation and the like, which remains even with good insulation, does not lead to the warming of the cryogenic liquid in the tank.
Die innerhalb des Isolierbehällers angeordnete Entnahmevorrichtung besteht aus einem Gehäuse 1.1, in dessen Mitte ein Schalldruckgenerator L2, vorzugsweise ein Ultraschallgeber, z.B. auf der Basis eines Schwingquarzes, so angeordnet ist, daß dip über ein Rohrstück 1.3 zuströmende Flüssigkeit, z. B. flüssiger Wasserstoff, in Richtung auf die schallerzeugende Fläche 1.21 strömt. Die Frequenz des Schalldruckgenerators und die Abmessungen des Rohres 13 sind so bemessen, daß innerhalb des Rohres eine stehende Welle erzeugt wird, die einen Schalldruck besitzt, der groß genug ist, um ein vollständiges Eindringen des Wasserstoffs im flüssigen Zustand in das Rohr 1.3 zu verhindern. Der Strömungsdruckverlust innerhalb des Rohres und im Gehäuse sowie in der Leitung 6 bis zum Drossel-Regelventil 3 wird so bemessen, daß er stets erheblich kleiner ist als der Druckabfall in dem Ventil 3 selbst.The arranged within the Isolierbehälers removal device consists of a housing 1.1, in the middle of a sound pressure generator L2, preferably an ultrasonic generator, for example based on a quartz crystal, is arranged so that dip over a pipe section 1.3 inflowing liquid, z. B. liquid hydrogen, flows in the direction of the sound-generating surface 1.21. The frequency of the sound pressure generator and the dimensions of the pipe 13 are such that a standing wave is generated within the pipe which has a sound pressure high enough to prevent complete penetration of the hydrogen in the liquid state into the pipe 1.3. The flow pressure loss within the pipe and in the housing as well as in the line 6 up to the throttle control valve 3 is dimensioned so that it is always considerably smaller than the pressure drop in the valve 3 itself.
Die in Fig.2 dargestellte Entnahmevorrichtung ist ähnlich der in Fig. 1 gezeigten aufgebaut, weist jedoch eine trichterförmige Schallerzeugungsfläche 1.22 auf. Der Vorteil einer derartigen Schallerzeugungsfläche besteht darin, daß eine Schallkonzentration (Fokussierung) erzeugt wird und daß die den Schall emittierende Fläche bei gleicher Stirnfläche größer ist.The removal device shown in Figure 2 is similar to that shown in Fig. 1, but has a funnel-shaped sound generating surface 1.22. The advantage of such a sound generating surface is that a sound concentration (focus) is generated and that the sound emitting Area is larger with the same frontal area.
Die in den Fig. 3 und 4 dargestellten Entnahmevorrichtungen unterscheiden sich von den vorherigen dadurch, daß bei ihnen das Resonatorrohr entfallen kann. Das entweder von einer trichterförmigen Schallerzeugungsfläche 1.22 (Fig.3) bzw. kegelförmigen Schallerzeugungsfläche 1.23 (Fig.4) erzeugte Schallfeld 7 wird direkt in die kryogene Flüssigkeit, z. B. flüssiger Wasserstoff abgestrahlt. Die Flüssigkeit selbst wird dadurch an einem Vordringen in den Bereich vor der Schailerzeugungsfiäche gehindert. Durch ein? jeweils in der Trichter- bzw. Kegelachse angeordnete Bohrung 1.4 innerhalb des Schalldruckgenerators 1.2 strömt daher ausschließlich gasförmiger Wasserstoff ab. Der Ausgang des Kanals 1.4 ist dazu von einem Gehäuse 1.2 umgeben und somit gegenüber der Umgebung abgeschlossen. Der gasförmige Wasserstoff wird dann über eine Leitung 6, ähnlich wie in Fig. 1, einem nicht mehr dargestellten Drossel-RegeJventiJ zugeführt.The removal devices shown in FIGS differ from the previous ones in that they do not have a resonator tube can. The either a funnel-shaped sound generating surface 1.22 (Fig.3) or a conical one Sound generating surface 1.23 (Fig.4) generated sound field 7 is directly in the cryogenic liquid, z. B. liquid hydrogen emitted. The liquid itself is thereby prevented from advancing into the area hindered the shail production area. Through a? each arranged in the funnel or cone axis Bore 1.4 within the sound pressure generator 1.2 therefore exclusively gaseous hydrogen flows off. The output of the channel 1.4 is surrounded by a housing 1.2 and thus opposite the Environment completed. The gaseous hydrogen is then via a line 6, similar to FIG. 1, a throttle RegeJventiJ not shown any more fed.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3148426A DE3148426C2 (en) | 1981-12-08 | 1981-12-08 | Extraction device for cold gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3148426A DE3148426C2 (en) | 1981-12-08 | 1981-12-08 | Extraction device for cold gas |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3148426A1 DE3148426A1 (en) | 1983-06-23 |
DE3148426C2 true DE3148426C2 (en) | 1984-01-26 |
Family
ID=6148110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3148426A Expired DE3148426C2 (en) | 1981-12-08 | 1981-12-08 | Extraction device for cold gas |
Country Status (1)
Country | Link |
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DE (1) | DE3148426C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004016135A1 (en) * | 2004-04-01 | 2005-10-20 | Bayerische Motoren Werke Ag | Cryotank, especially for hydrogen in vehicle, has separating screen that does not pass gas in upper tank narrowing upwards in normal position with edge separate from inner tank wall and from which safety extraction line passes out |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3417055C2 (en) * | 1984-05-09 | 1986-05-07 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Helium II phase separator |
CN104296411B (en) * | 2014-10-08 | 2016-08-24 | 南京航空航天大学 | Use 4K low temperature pulse tubes refrigeration machine and the method for centrifugal screw type regenerator |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0001392A1 (en) * | 1977-09-24 | 1979-04-18 | Messer Griesheim Gmbh | Separation device for vapours from low-boiling liquefied gases, evolved during their transfer |
-
1981
- 1981-12-08 DE DE3148426A patent/DE3148426C2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004016135A1 (en) * | 2004-04-01 | 2005-10-20 | Bayerische Motoren Werke Ag | Cryotank, especially for hydrogen in vehicle, has separating screen that does not pass gas in upper tank narrowing upwards in normal position with edge separate from inner tank wall and from which safety extraction line passes out |
Also Published As
Publication number | Publication date |
---|---|
DE3148426A1 (en) | 1983-06-23 |
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Legal Events
Date | Code | Title | Description |
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OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |