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Machine translation
1. (WO1979000565) COUNTERCURRENT DIRECT CONTACT HEAT EXCHANGE PROCESS AND SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000565    International Application No.:    PCT/US1979/000047
Publication Date: 23.08.1979 International Filing Date: 30.01.1979
IPC:
F03G 7/04 (2006.01), F28C 3/06 (2006.01)
Applicants:
Inventors:
Priority Data:
873264 30.01.1978 US
Title (EN) COUNTERCURRENT DIRECT CONTACT HEAT EXCHANGE PROCESS AND SYSTEM
(FR) PROCEDE ET INSTALLATION POUR L"ECHANGE DE CHALEUR A CONTACT DIRECT ET A CONTRE-COURANT
Abstract: front page image
(EN)Recovery of energy from geothermal brines and other hot water sources by direct contact heat exchange with a working fluid, such as a hydrocarbon working fluid, e.g. isobutane, is described. The process and system consist of a plurality of stages (A, B, C, D, E), each stage including mixing (22, 48, 62, 76, 90) and settling (26, 52, 64, 78, 92) units. In the first stage (A), hot brine and warm working fluid are intimately mixed (22) and passed into a settler (26) wherein the brine settles to the bottom of the settler and the hot working fluid rises to the top. The hot working fluid is passed to a heat engine or turbine (30) to produce work and the working fluid is then recycled back into the system. The system is comprised of a series of stages (A, B, C, D, E) each containing a settler (26, 52, 64, 78, 92) and mixer (22, 48, 62, 76, 90), and wherein the working fluid and the brine flow in a countercurrent manner through the stages to recover the heat from the brine in increments and raise the temperature of the working fluid in increments.
(FR)La recuperation d"energie a partir de saumures geothermiques et d"autres sources d"eau chaude au moyen d"un echange de chaleur a contact direct avec un fluide de travail tel qu"un hydrocarbure fluide, par exemple de l"isobutane, est decrite. Le procede et l"installation comprennent plusieurs etapes (A, B, C, D, E), chaque etape comportant des unites de melange (22, 48, 62, 76, 90) et de decantation (26, 52, 64, 78, 92). Pendant la premiere etape (a), la saumure chaude est intimement melangee (22) avec le fluide de travail chaud et le tout est amene dans un decanteur (26) ou la saumure se depose au fond du decanteur et l"eau chaude monte a la surface. Le fluide de travail chaud arrive dans une machine thermique ou turbine (30) pour fournir du travail et le fluide de travail est ensuite recycle dans l"installation. Cette installation comprend une serie d"unites (A, B, C, D, E) dont chacune comporte un decanteur (26, 52, 64, 78, 92) et un melangeur (22, 48, 62, 76, 90). Le fluide de travail et la saumure s"ecoulent a contre-courant a travers les unites afin de recuperer graduellement la chaleur de la saumure et d"augmenter graduellement la temperature du fluide de travail.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)