Global Patent Index - EP 0954735 A1

EP 0954735 A1 19991110 - NATURAL-DRAUGHT AIR CONDENSER APPARATUS AND METHOD OF OPERATION THEREOF

Title (en)

NATURAL-DRAUGHT AIR CONDENSER APPARATUS AND METHOD OF OPERATION THEREOF

Title (de)

NATURZUG LUFTKONDENSATOR UND DESSEN BETRIEBSWEISE

Title (fr)

APPAREIL DE CONDENSEURS A AIR NATUREL ET PROCEDE DE FONCTIONNEMENT DE CELUI-CI

Publication

EP 0954735 A1 19991110 (EN)

Application

EP 97932956 A 19970717

Priority

  • HU 9700040 W 19970717
  • HU P9601945 A 19960717

Abstract (en)

[origin: WO9802701A1] A natural-draught air condenser comprises air condensers (7, 7A, 11, 11A) arranged in sections (30, 30A) supplied with steam in parallel, each section (30, 30A) having two or more air condenser stages connected in series on the steam side, wherein subsequent stages are of a decreasing steam side cross section or cooling surface, and the air condensers (7, 7A, 11, 11A) are located at the bottom part of a cooling tower (5) in a way natural-draught air flow passes the air condensers in parallel. The air condensers (7, 7A, 11, 11A) of all stages are of such a circuitry that in them the steam and the generated condensate flow downwards in the same direction, and the air condensers (11, 11A) in either the last or in the last two stages are provided with auxiliary fans (12, 12A) to establish an artificial air flow in addition to the natural-draught air flow. The invention further relates to a method of operating a natural-draught air condenser wherein, upon start-up of the air condenser apparatus and in case of a stream flow disorder arising in the air condensers (7, 7A, 11, 11A), an artificial air flow is established in addition to the natural-draught air flow at the air condensers (11, 11A) in either the last or in the last two stages.

IPC 1-7

F28B 1/06

CPC (source: EP)

F28B 1/06 (2013.01); F28B 2001/065 (2013.01)

Citation (search report)

See references of WO 9802701A1

Designated contracting state (EPC)

DE ES FR GR IT

DOCDB simple family (publication)

WO 9802701 A1 19980122; AU 3631497 A 19980209; DE 69709907 D1 20020228; EP 0954735 A1 19991110; EP 0954735 B1 20020102; HU 221152 B1 20020828; HU 9601945 D0 19960930; HU P9601945 A1 19980528

DOCDB simple family (application)

HU 9700040 W 19970717; AU 3631497 A 19970717; DE 69709907 T 19970717; EP 97932956 A 19970717; HU P9601945 A 19960717