Stacked type falling film evaporator, zero liquid discharge system comprising the same, and zero liquid discharging method using the same

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United States of America Patent

PATENT NO 10449468
APP PUB NO 20150190727A1
SERIAL NO

14557969

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Abstract

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A stacked type falling film evaporator includes a first evaporator, a second evaporator, a first vapor recovering device, a second vapor recovering device and a vapor recompressor. The first evaporator and the second evaporator respectively have evaporation tubes of a length of 5 m to 10 m, and are stacked in such a manner that wastewater passes through the first evaporator and the second evaporator in order. The first vapor recovering device collects vapor generated from the wastewater in the first evaporator and supplies the collected vapor to the second evaporator. The second vapor recovering device collects vapor generated from the wastewater in the second evaporator and supplies the collected vapor to the first evaporator. The vapor recompressor compresses the vapor collected in the second vapor recovering device before the vapor is supplied to the first evaporator.

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Patent Owner(s)

Patent OwnerAddress
DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO LTD22 DOOSANVOLVO-RO SEONGSAN-GU CHANGWON-SI GYEONGSANGNAM-DO 51711

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Choi, Jae Seung Gyeongsangnam-do, KR 38 323
Kim, Sang Moon Busan, KR 5 0
Lee, Gun Myung Daegu, KR 2 0
Ro, Youngjun Seoul, KR 4 1

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