Title:
低温液体のレベル制御装置
Document Type and Number:
Japanese Patent JP4495260
Kind Code:
B2
Abstract:
An apparatus for controlling level of cryogenic liquid in a vessel includes a transfer duct to a pressure supply tank. Pressure pulses are applied to the tank at one rate when the level is below a primary sensor in the vessel, and at a lower rate when the level is above the sensor, so as to compensate for intrinsic declination of the level. At startup a constant pressure is applied to the tank until the level reaches a lower sensor, and a relief valve over the tank is opened when the level overshoots to an upper sensor. Turbulence in the vessel is reduced by a pair of coaxial baffles at the liquid inlet to the vessel, and by a housing with tubular extensions enveloping the sensors.
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Inventors:
E Joel McCocle
Herman Vogel
Marcel Margarize
Richard Tea Ferranti
Herman Vogel
Marcel Margarize
Richard Tea Ferranti
Application Number:
JP32891696A
Publication Date:
June 30, 2010
Filing Date:
December 09, 1996
Export Citation:
Assignee:
PE Corporation(NY)
International Classes:
F17C5/02; F17C13/02; G05D9/12
Domestic Patent References:
| JP62200099A | ||||
| JP56055564U | ||||
| JP58121416A | ||||
| JP62114630U | ||||
| JP63255576A | ||||
| JP2154154A | ||||
| JP5200343A |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Toshiomi Yamazaki
Takuya Kuno