Ice in my dewar! (Liquid helium transport dewar)
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(New page: [[Media:]http://andysoper.synthasite.com/resources/NMR_Links_and_Widgets/Liquid%20Helium%20Transport%20Dewar%20Up%20Close%20and%20Personal%20Version%201.2.1.doc]) |
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| + | Here is a solution to an iced-up Liquid helium Transport Dewar. | ||
| + | This is of special interest to sites which are far from their liquid helium supplier, and wh perform their own liquid helium fils. | ||
| + | |||
| + | Scenario: | ||
| + | |||
| + | The dewar will not pressurize, or pressurizes reluctantly. | ||
| + | The dewar will not vent via the regular vent port. | ||
| + | Some of the safety valves do not vent any gas. | ||
| + | |||
[[Media:]http://andysoper.synthasite.com/resources/NMR_Links_and_Widgets/Liquid%20Helium%20Transport%20Dewar%20Up%20Close%20and%20Personal%20Version%201.2.1.doc] | [[Media:]http://andysoper.synthasite.com/resources/NMR_Links_and_Widgets/Liquid%20Helium%20Transport%20Dewar%20Up%20Close%20and%20Personal%20Version%201.2.1.doc] | ||
Revision as of 10:55, 12 March 2009
Here is a solution to an iced-up Liquid helium Transport Dewar. This is of special interest to sites which are far from their liquid helium supplier, and wh perform their own liquid helium fils.
Scenario:
The dewar will not pressurize, or pressurizes reluctantly. The dewar will not vent via the regular vent port. Some of the safety valves do not vent any gas.
