DE1501297A1 - Device for supplying a cryogenic liquid to an inverted dewar vessel - Google Patents
Device for supplying a cryogenic liquid to an inverted dewar vesselInfo
- Publication number
- DE1501297A1 DE1501297A1 DE19661501297 DE1501297A DE1501297A1 DE 1501297 A1 DE1501297 A1 DE 1501297A1 DE 19661501297 DE19661501297 DE 19661501297 DE 1501297 A DE1501297 A DE 1501297A DE 1501297 A1 DE1501297 A1 DE 1501297A1
- Authority
- DE
- Germany
- Prior art keywords
- container
- supply line
- dewar
- cryogenic liquid
- openings
- 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
Classifications
-
- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect
-
- 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
- F17C6/00—Methods and apparatus for filling vessels not under pressure with liquefied or solidified gases
-
- 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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0119—Shape cylindrical with flat end-piece
-
- 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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/06—Vessel construction using filling material in contact with the handled fluid
-
- 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
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0626—Multiple walls
- F17C2203/0629—Two walls
-
- 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
-
- 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
- F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
- F17C2223/042—Localisation of the removal point
- F17C2223/046—Localisation of the removal point in the liquid
- F17C2223/047—Localisation of the removal point in the liquid with a dip tube
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
Patentanwalt 150129/Patent attorney 150129 /
8 MOnolien 12 - Bidlerstraße 87 PHa .2.425 8 MONOLIA 12 - Bidlerstrasse 87 PHa .2.425
dJo/ΤΙίdJo / ΤΙί
N. V. PHILjPS' GLOEIIAMPENFABRIEKEN, EINDHOVEN / HOLLAND NV PHILjPS 'GLOEIIAMPENFABRIEKEN, EINDHOVEN / HOLLAND
"Vorrichtung für die Zufuhr einer kryogenen i "Device for the supply of a cryogenic i
Flüssigkeit an ein umgekehrtes Dewargefäss."Liquid to an inverted dewar. "
Eie !Erfindung betrifft ein r/veirhasiges Liihlcystei:. in Jen; eine krycv'ene i'lüssigkeit einem Behälter, insbesiTiuere einem vmgeYvhrten l>ew-:rf;efa£s zugeführt wird.An invention relates to a rhino-phyllous cell. in Jen; a cryogenic liquid is fed to a container, in particular to a well-known l> ew-: rf; efa £ s.
i-'ei in sici: ge&chlcseenen kryogenen Systemen zur:. K'":.Ien von z.B. Tnfr-r<tcetektcrer. ist es häufig notwendig, einen. Bewärgefäss eine Kühlfliineirkeit zuzuführen,i-'ei in sici: ge & chlcseenen cryogenic systems for :. It is often necessary to supply a cooling fluid to a watering vessel, e.g.
909849/0186909849/0186
wcbei das Gefäss umgekehrt angeordnet ist. Die vorliegende Erfindung bezweckt, eine einfache, zuverlässig wirkende Vorrichtung zu schaffen, die eine gute Zufuhr einer Kühlflüssigkeit an ein Dewargefäß sicher stellt.where the vessel is reversed. The present The aim of the invention is to provide a simple, reliable device to create a good supply of a cooling liquid to a dewar flask.
Ferner bezv/eckt α ie Erfindung, die Verdamxfungsverluste in dem Dewargefäss infolge des aus dem Ende eines Zweiphasenströmungsrohres stammenden, heissen Gases zu verringern. Furthermore, the invention relates to the evaporation losses in the dewar due to the hot gas coming from the end of a two-phase flow tube.
Ein weiterer Zweck der vorliegenden Erfindung i.c't auf eine Verbesserung der Eältezufuhr an das umgekehrte Dewargefäss gerichtet, so dass der Detektor eine höheren i/irkungsgr&d erreichen kann.Another purpose of the present invention i. c 't aimed at improving the supply of cold to the inverted Dewar vessel so that the detector can achieve a higher level of efficiency.
Die Erfindung wird nachstehend an Hand der Zeichnung ηέ-iher erläutert.The invention is explained below with reference to the drawing ηέ-iher.
Ein Infrarotdetektor 10 ist ders.rt angeordnet, dass die betreffende Kühlvorrichtung in Form eines Dewargefässes 12, die umgekehrte Lage einnimmt. Der Detektor 10 liegt gegenüber einem Fenster 13 des Dewargefässes. Sin Zv/eiphasenströmungsrohr 14 führt kleine Tropfen einer in einem !Erägergas suspendierten kryogenen Flüssigkeit dem Dewargefäss des Detektors zu. In dem Boden des üefässes, der infolge der umgekehrten Lage oben liegt, ist eine geringe Menge porösen Material 16 z.B. Glaswolle oder Baumwolle vorgesehen, welche die eingeführte Flüssigkeit zurückhält.An infrared detector 10 is arranged ders.rt that the cooling device in question in the form of a Dewar vessel 12, which assumes the opposite position. The detector 10 is opposite a window 13 of the Dewar. A single phase flow tube 14 carries small droplets a cryogenic liquid suspended in a carrier gas to the dewar of the detector. In the bottom of the vessel, which is on top due to the inverted position a small amount of porous material 16 e.g. holding back.
Das Zweiphasenrohr 14 wird durch einen Zufuhrteil 16 für das Gas gebildet, in dem die Flüssigkeitstropfen suspendiert sind. Bas Zufuhrrohr hat eine scharfe The two-phase tube 14 is formed by a supply part 16 for the gas in which the liquid droplets are suspended. Bas feed tube has a sharp one
90 9849/0188 bad orioinal90 9849/0188 bad orioinal
Biegung 20 gerade vor den Eintritt in das Dewargefäss 12. Das Zufuhrrohr erstreckt eich über einen grossen Teil im Innern de« Dewargefässes 12. Nahe der Oberseite des D-wargefässes, also hier nahe des: Beden, ist eine Anzahl ven Öffnungen 22 in dem Zufuhrrohr 1o vorgesehen. Ein Abfuhrrohr 24 erstreckt eich über einen geringeren Abstand im Innern des Dewargefässes und führt das darin vorhandene Gas ab. · ([Bend 20 just before the entry into the Dewar vessel 12. The supply pipe extends over a large part of the interior of the Dewar vessel 12. Near the top of the Dewar vessel, that is to say here near the bottom, there are a number of openings 22 in the supply pipe 1o provided. A discharge pipe 24 extends over a smaller distance inside the Dewar and discharges the gas present therein. · ([
Das Trägergas hat eine bedeutend höhere Temperatur ale di· Flü* sigkeitstropf en. Diese Temperatur nähert eich der Umgebungstemperatur. Die Öffnungen 22 im Zufuhrrohr 1B bilden die Kittel zum Vorhüten eines Kontaktes der Gasströmung mit dem porösen Llat^iial 16, das mit Kühlflüssigkeit getränkt ist. TJm die Veräamnfunpsverluete infolge des verhältniemässig warnen Gases in oem Dewargefäss zu verrinrern ist es notwendig, den grössten Teil des Trägergaees Von eiern Zufuhrrohr 13 abzuführen, bevor des Gas aus den Ende dieses Rohres heraustritt und mit dem orÖsen Material in Berührung kommt, dae Bit der Kühlflüssigkeit getränkt ist. ÄJas Rohr 2: führt die Flüssigkeitstro;;fen im Gas zu der Seite des Zufuhrrohres 1tf gegenüber den Dffnunren Direkt nach oer Beigung lieft die Roihe von Offnungen 22, durch die ein Teil des Trägergases zu dem Ausgangsrohr 24 entweicht. Der verbleibende Teil des Trägergaees wird gemeinsam mit οen Flüssigkeitstrorfen dem Ende des Rohres zugeführt. Da der ven dec Ende des Zufuhrrohres 1: stammende Teil des Gases eine erheblich geringere Geeci windifrkeit hat, wird die Verdam. fungs^eschwindigkeit der ivühlflüßsigkeit inThe carrier gas has a much higher temperature ale di · Wing * sigkeitstropf s. This temperature approaches the ambient temperature. The openings 22 in the supply pipe 1B form the gowns for preventing contact of the gas flow with the porous lat ^ iial 16 which is soaked with cooling liquid. In order to reduce the loss of loss due to the relatively high level of gas in the dewar vessel, it is necessary to remove the greater part of the carrier gas from a supply pipe 13 before the gas emerges from the end of this pipe and comes into contact with the oily material, the bit of the cooling liquid is soaked. The pipe 2: leads the liquid droplets in the gas to the side of the supply pipe 1tf opposite the openings. The remaining part of the carrier gas is fed to the end of the pipe together with οen liquid drips. Since the ven dec end of the supply pipe 1: originating part of the gas has a considerably lower geeci windifrkeit, the Verdam. filling speed of the cooling liquid in
909849/0188 BADOfiiGJNAL909849/0188 BADOfiiGJNAL
dem porösen Material wesrnilich verringert.the porous material is significantly reduced.
Beim Entwurf eines Zweiphasenströmungsrohree vorerwähnter Art müssen die nachfolgenden Paktoren berücksichtigt werden.When designing a two-phase flow pipe of the type mentioned above, the following factors must be taken into account will.
1. Die Gesamtmasse der Strömung in dem Zweiphasenrohr.1. The total mass of flow in the two-phase pipe.
2. Die Beziehung zwischen den Mengen Gras h und Flüssigkeit am Ausgang des Rohres.2. The relationship between the amounts of grass h and liquid at the exit of the pipe.
3^ Die länge des Zweithasenrchres.3 ^ The length of the second hare.
4. Der Querschnitt des Rohres und die Geschwindigkejt des Gases am Ausgang.4. The cross-section of the pipe and the speed of the gas at the outlet.
5. Abmessung und Trägheit der Flüseigkeitstro.fen am Ausgang.5. Dimension and inertia of the liquid drops at the exit.
6. Die Temperatur der Gasphase am Ausgang des £weipahsenrchres, die mit der Umgebungstemperatur und dem Druck zusammenhängt.6. The temperature of the gas phase at the outlet of the weipahsenrchres, which corresponds to the ambient temperature and the pressure.
7.' Der Innendurchmesser und die Gesamtlänge des Dewars.7. ' The inside diameter and the total length of the dewars.
t>. Der Winkel zwischen der Vertikalen und dem Dewar.t>. The angle between the vertical and the dewar.
9. Der Radius der Krümmung des Zweiphasenrohres gerade vor dem Eintritt in den Dewar.9. The radius of curvature of the two-phase tube just prior to entering the dewar.
10. Die Stelle und die Abmessung dee Abfuhrrohres. 10. The location and dimensions of the discharge pipe.
11. Die Menge des absorbierenden Materials arc Beden des Dewargefässes.11. The amount of absorbent material arc beden the dewar.
:-raktische Ausführungsform der vorstehend besci.riebenen Krfinounr entMel·* drei Infrarot-: - Practical embodiment of the above described Krfinounr entMel * three infrared
909849/0188 BADORiGiNAL909849/0188 BADORiGiNAL
PHA.20.425PHA.20.425
detektoren, die durch eine einzige Kühlmaschine nach dem Stirling Zyklus abgekühlt werden. Einer der Detektoren war aufwärts unter einem V/inkel von 10 - 45° zur horizontal ebene angeordnet und hatte die nachfolgende Daten:detectors operated by a single refrigeration machine after Stirling cycle to be cooled down. One of the detectors was upwards at an angle of 10-45 ° to the horizontal plane arranged and had the following data:
1. Ide LIenge der Strömung in einem Zwei-:hasei: rohr war 0,0c5 - C.095 Pf/St, stickstoff.1.Ide length of the flow in a two-: hasei: pipe was 0.0c5 - C.095 Pf / St, nitrogen.
2. Die Länge des Zv;ei;»hasenrchres war 45,7 76,2 cn.2. The length of the Zv; ei; »hasenrchres was 45.7 76.2 cn.
3. Der Innendurchmesser des Rohres war 2 2,5 mm.3. The inside diameter of the tube was 2 2.5 mm.
4. Der Innendurchmesser der Dewar-Vorrichtung war 9 - 11 mm.4. The inside diameter of the Dewar was 9-11 mm.
i>. Die Gesamtlänge der Dewar-Vor richtung war 7 - 1- cm. i>. The total length of the Dewar device was 7-1 cm.
6. Der Raaius der krümmung des Zv/eiohasenrchres war 3 - c,25 cm,6. The Raaius of the curvature of the Zv / eiohasenrchres was 3 - c, 25 cm,
7. Die Menge komprimierter Baumwolle war 60 - 1;;O ng.7. The amount of compressed cotton was 60 - 1 ;; O ng.
:. Der Gesamtdurchmesser der öffnungen in dem Rohr nahe dem ivnsaugsrohr des Dewargefässes war mehr als 6.φ des Rohrdurchmessers.:. The total diameter of the openings in the pipe near the ivnsaugsrohr was the dewar more than 6 φ of the pipe diameter.
9. Dr Abstand des "Bodens" des Dewargefässes von dem Ende des Zwei .<hasenrohre$ war 1,25 bis 2 cm.9. The distance of the "bottom" of the dewar from the end of the two. Rabbit tubes was 1.25 to 2 cm.
U. Der Abstand zwischen den öffnungen und dem Ende des Rohres war 6 bis 7,5 cm.U. The distance between the openings and the end of the tube was 6 to 7.5 cm.
In dem ermähnten Beispiel war die Kä'ltfe2U-fuhr an das uajrekehrt angeordnet« DewargifasS 20 biü ^ höher ale in früheren. KIn the example, the ermähnten Kä'ltfe2U- was snapped at the arranged uajrekehrt "DewargifasS 20 biue ^ ale higher in earlier. K
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US487685A US3362176A (en) | 1965-09-16 | 1965-09-16 | Apparatus for supplying liquid to an upside-down dewar in a closed loop cooling system |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1501297A1 true DE1501297A1 (en) | 1969-12-04 |
DE1501297B2 DE1501297B2 (en) | 1975-03-06 |
DE1501297C3 DE1501297C3 (en) | 1975-10-30 |
Family
ID=23936727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1501297A Expired DE1501297C3 (en) | 1965-09-16 | 1966-09-13 | Device for supplying a cryogenic liquid to an inverted dewar |
Country Status (7)
Country | Link |
---|---|
US (1) | US3362176A (en) |
BE (1) | BE686866A (en) |
CH (1) | CH466345A (en) |
DE (1) | DE1501297C3 (en) |
GB (1) | GB1141715A (en) |
NL (1) | NL6612855A (en) |
SE (1) | SE314222B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1330837A (en) * | 1969-12-08 | 1973-09-19 | Hymatic Eng Co Ltd | Cooling apparatus |
SE420862B (en) * | 1978-06-08 | 1981-11-02 | Pharos Ab | DEVICE FOR STORAGE OF CRYOGENIC LIQUID UNDER ATMOSPHERIC PRESSURE |
WO2006002461A1 (en) * | 2004-07-05 | 2006-01-12 | Commonwealth Scientific And Industrial Research Organisation | Method and apparatus for operation of a cryogenic device in a gaseous environment |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US966076A (en) * | 1905-09-20 | 1910-08-02 | Gabriel A Bobrick | Refrigerating apparatus. |
US2470228A (en) * | 1942-06-05 | 1949-05-17 | Hartford Empire Co | Apparatus for cooling hollow glassware |
US2939938A (en) * | 1953-10-30 | 1960-06-07 | Hupp Corp | Infra red cell methods and applications |
US2892250A (en) * | 1954-11-03 | 1959-06-30 | Hupp Corp | Method of producing photocells |
US2973434A (en) * | 1957-12-26 | 1961-02-28 | Texas Instruments Inc | Infrared detecting cell and a mounting therefor |
US3016716A (en) * | 1959-08-27 | 1962-01-16 | Harold R Walker | Liquid oxygen cooler for airborne infrared cells |
US3064451A (en) * | 1960-01-14 | 1962-11-20 | Union Carbide Corp | Cooling head for small chambers |
DE1245998B (en) * | 1963-09-06 | 1967-08-03 | Arthur D. Little, Inc., Cambridge, Mass. (V. St. A.) | Device for liquefying gases such as helium |
-
1965
- 1965-09-16 US US487685A patent/US3362176A/en not_active Expired - Lifetime
-
1966
- 1966-09-13 DE DE1501297A patent/DE1501297C3/en not_active Expired
- 1966-09-13 SE SE12313/66A patent/SE314222B/xx unknown
- 1966-09-13 CH CH1320266A patent/CH466345A/en unknown
- 1966-09-13 NL NL6612855A patent/NL6612855A/xx unknown
- 1966-09-13 GB GB40805/66A patent/GB1141715A/en not_active Expired
- 1966-09-14 BE BE686866D patent/BE686866A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE1501297C3 (en) | 1975-10-30 |
GB1141715A (en) | 1969-01-29 |
NL6612855A (en) | 1967-03-17 |
CH466345A (en) | 1968-12-15 |
SE314222B (en) | 1969-09-01 |
BE686866A (en) | 1967-03-14 |
US3362176A (en) | 1968-01-09 |
DE1501297B2 (en) | 1975-03-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
8339 | Ceased/non-payment of the annual fee |