DE815411C - Cold trap for high vacuum devices - Google Patents
Cold trap for high vacuum devicesInfo
- Publication number
- DE815411C DE815411C DEP10416A DEP0010416A DE815411C DE 815411 C DE815411 C DE 815411C DE P10416 A DEP10416 A DE P10416A DE P0010416 A DEP0010416 A DE P0010416A DE 815411 C DE815411 C DE 815411C
- Authority
- DE
- Germany
- Prior art keywords
- cold trap
- high vacuum
- vacuum devices
- rubber
- metal
- 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
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 101100204059 Caenorhabditis elegans trap-2 gene Proteins 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/14—Investigating or analyzing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation
- G01N25/145—Accessories, e.g. cooling devices
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Description
Seit einiger Zeit werden für manche Teile von Hochvakuumapparaten Gummidichtungen benutzt. For some time now, parts of high vacuum apparatus have been used for some Rubber seals used.
Bei sogenannten Kühlfallen jedoch, in denen schädliche Dämpfe dadurch kondensiert werden, daß die Kühlfalle beispielsweise durch flüssige Luft gekühlt wird, hielt man bisher wegen der auftretenden großen Temperaturdifferenz die Verwendung von Gummi dichtungen nicht für möglich.In the case of so-called cold traps, however, in which harmful vapors thereby be condensed that the cold trap is cooled, for example, by liquid air is, so far because of the large temperature difference that occurs, the use of rubber seals not possible.
Eingehende Versuche haben jedoch überraschenderweise ergeben, daß auch bei Kühl fallen zwischen dem Kühlteil und den benachbarten Teilen der Vakuumapparatur Gummidichtungen verwendet werden können. Es ist nicht einmal erforderlich, daß die genannten Teile aus gleichem Werkstoff bestehen. Auch wenn die Kühlfalle etwa so aufgebaut ist, daß der Kühlteil aus einem Glaskörper besteht, der mit einem Metallmantel umgeben oder an einem Metallkopf mittels Gummidichtung vakuumdicht angeschlossen bzw. anschließbar gemacht ist, können diese Teile gegeneinander durch die Gummidichtung hochvakuumdicht gemacht werden. However, detailed tests have surprisingly shown that even in the case of cooling, there are falls between the cooling section and the adjacent parts of the vacuum apparatus Rubber seals can be used. It doesn't even require that the are made of the same material. Even if the cold trap is something like this is constructed that the cooling part consists of a glass body with a metal jacket surrounded or connected vacuum-tight to a metal head by means of a rubber seal or is made connectable, these parts can be connected to each other through the rubber seal be made high vacuum tight.
Zwei Ausführungsbeispiele der neuen Kühl falle sind in den Abb. I und 2 schematisch im Längsschnitt wiedergegeben, und zwar ist in der Abb. I eine innengekühlte Kühlfalle, in der Abb. 2 eine außengekühlte Kühlfalle dargestellt. Two embodiments of the new cold trap are shown in Fig. I. and 2 shown schematically in longitudinal section, namely in Fig. I is a internally cooled cold trap, in Fig. 2 an externally cooled cold trap is shown.
Gemäß Abb. I wird das Gas aus dem bei I an einem Metallkopf angeschlossenen Rezipienten an dem etwa mit flüssiger Luft gefüllten Glaskörper 2 vorbeigesaugt; dabei treten schädliche Dämpfe, beispielsweise Hg-Dämpfe, von der bei 3 angeschlossenen Hochvakuumpumpe in den Raum 4, die sich aber an dem als Kühlfalle wirkenden Glaskörper 2 niederschlagen und dadurch am Eintreten in den Rezipienten gehindert werden. Neu und überraschend ist es, daß insbesondere an den Dichtungsstellen 5, 6, an denen die größten Temperaturdifferenzen auftreten, Gummi dichtungen eine dauerhafte und gute Abdichtung ergeben. According to Fig. I, the gas from the at I is connected to a metal head Recipients sucked past the glass body 2 filled with liquid air; harmful vapors, for example mercury vapors, emit from the connected at 3 High vacuum pump into room 4, which is attached to the glass body acting as a cold trap 2 and thus prevented from entering the recipient. New and it is surprising that in particular at the sealing points 5, 6, at which the greatest temperature differences occur, rubber seals a permanent and result in a good seal.
Auch bei der außengekühlten Kühlfalle gemäß Abb. 2 (das Gefäß 7 enthält das Kühlmittel, etwa flüssige Luft, 8 ist die zum Rezipienten führende Offnung, bei g ist die Metalldampfpumpe angeschlossen, IO ist ein Metallkopf) sind selbst an der Stelle größter Temperaturunterschiede Gummiringe II, I2 als Abdichtungsmittel verwendet, die eine dauerhafte Hochvakuumdichtung gewährleisten. Even with the externally cooled cold trap according to Fig. 2 (which contains the vessel 7 the coolant, such as liquid air, 8 is the opening leading to the recipient, at g the metal vapor pump is connected, IO is a metal head) are themselves at the point of greatest temperature differences rubber rings II, I2 as sealing means which ensure a permanent high vacuum seal.
PATENTANspnücHE: I. Kühlfalle für Hochvakuumapparate, gekennzeichnet durch mindestens eine Gummidichtung zwischen Kühlteil und benachbartem Teil. PATENT REQUIREMENTS: I. Cold trap for high vacuum apparatus, marked by at least one rubber seal between the cooling part and the adjacent part.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP10416A DE815411C (en) | 1948-10-02 | 1948-10-02 | Cold trap for high vacuum devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP10416A DE815411C (en) | 1948-10-02 | 1948-10-02 | Cold trap for high vacuum devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE815411C true DE815411C (en) | 1951-10-01 |
Family
ID=7362870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP10416A Expired DE815411C (en) | 1948-10-02 | 1948-10-02 | Cold trap for high vacuum devices |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE815411C (en) |
-
1948
- 1948-10-02 DE DEP10416A patent/DE815411C/en not_active Expired
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