Feed control for cryogenic gas plant

Refrigeration – Processes – Circulating external gas

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

62 37, 62175, 622283, F25J 300

Patent

active

046980806

ABSTRACT:
Overloading of a plurality of turbine drivers driving compressors in a plurality of compression cycles, such as the compression of refrigerants and the compression of normally gaseous feed in a method for cryogenically cooling such normally gaseous feed, due to changes in compressor limiting operating conditions, is prevented by measuring the suction pressures to the low pressure stages of the compressors, deriving a desired feed flow rate in response to each of such measured suction pressures, selecting the lowest desired feed flow rate (which will be derived in response to the highest measured suction pressure if all set points are equal), and adjusting the feed gas flow rate in response to the lowest flow rate. In a preferred embodiment, a manual set point representing a maximum feed gas flow rate is also applied and the selected feed rate is dictated by the highest suction pressure or the maximum feed rate, whichever is lower, and is utilized to adjust the feed rate. In another embodiment, the speeds of the individual turbine drivers are controlled in response to the low stage suction pressures to each of the individual turbine drivers.

REFERENCES:
patent: 3411308 (1968-11-01), Bellinger
patent: 4172711 (1979-10-01), Bailey
patent: 4377402 (1983-03-01), Crowe et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Feed control for cryogenic gas plant does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Feed control for cryogenic gas plant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feed control for cryogenic gas plant will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2115542

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.