Cryogenic storage tank with a retrofitted in-tank cryogenic pump
Patent
·
OSTI ID:5304598
This patent describes a low boiloff submersible pump assembly for use in a conventional cryogenic tank having an open access port. It comprises: a pump; a removable pump mounting tube extending through the access port of the cryogenic tank. The pump mounting tube having an inner surface thermally insulated from an outer surface of the tube and thermally insulated from the access port of the cryogenic tank. The tube having an open lower end, the upper end of the tube including means adapted to make a gas-tight seal with the pump mounted thereto. The tube extending through the tank and into the cryogen stored in the tank; and block means for thermally insulating the removable pump mounting tube from the cryogenic tank at the access port of the cryogenic tank. The mounting tube connecting the tank only at the access port through the block means.
- Assignee:
- Zwick Energy Research Organization, Inc., Huntington Beach, CA
- Patent Number(s):
- US 4860545
- Application Number:
- PPN: US 7268193A
- OSTI ID:
- 5304598
- Country of Publication:
- United States
- Language:
- English
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