WASTEWATER EVAPORATION/CONCENTRATION EQUIPMENT

Japanese Patent JP3448201

B2

PROBLEM TO BE SOLVED: To efficiently perform the evaporation/concentration of wastewater in the evaporator and also to stably operate the evaporation/concentration equipment by recovering the heat energy of steam generated in and discharged from an evaporator, with an absorption heat pump and supplying the recovered heat energy to a heater for the evaporator.
SOLUTION: In this equipment, a part or all of generated steam 6 in an evaporator 2 is transferred to an absorption heat pump 29 and hot water 23 heated in the heat pump 29 is transferred to a circulation water tank 24 and there, mixed with condensed water 22 of plant steam 21. The resulting hot water in the circulation water tank 24 is transferred to a heater 3 through a pump 26a and the circulation hot water 25a (hot) introduced to the heater 3 flows out from the heater 3 as circulation hot water 25b (cooled). Also, a part of the circulation hot water 25b is transferred to the absorption heat pump 29 as circulation hot water 27 and the other part is transferred to a steam generation plant. On the other hand, a part of the generated steam 6 in the evaporator 2 is transferred to a cooler 7 and there, cooled to form condensed water 8a.

Eiji Ochi
Takeo Shinoda
Atsushi Yoshioka
Hideki Kamiyoshi
Atsumasa Endo

JP1533998A

September 22, 2003

January 28, 1998

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MITSUBISHI HEAVY INDUSTRIES,LTD.

B01D1/00; B01D1/30; B01D3/00; B01D53/50; B01D53/77; C02F1/04; F25B27/02; F25B29/00; F25B15/06; (IPC1-7): C02F1/04; B01D1/30; B01D53/50; B01D53/77

JP57153701A
JP54023A

Nao Okuyama (2 outside)

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