Title:
DEVICE AND METHOD FOR SUPPLYING CLEAN AIR
Document Type and Number:
Japanese Patent JP3156452
Kind Code:
B2
Abstract:
PURPOSE: To eliminate dust and harmful gas simultaneously by adding mist consisting of pure water to make it absorb dust in the air and make water-soluble gas dissolve therein.
CONSTITUTION: Three regions are formed, namely, a pure water spray part 4, first-stage cooling part 5, and second-stage cooling part 9, through which a flow of air is passed in sequence. In the pure water spray part 4 pure water is sprayed against air flowing in and mist produced thereby adsorbs dust; water- soluble gas is also dissolved. In the first-stage cooling part 5 liquid air sprayed from a liquid-air sprayer 6 makes the mist instantly freeze into fine particulates of ice, which are deposited on an eliminator 7. Water resulting from their melting by heat from a heater in the eliminator 7 is received in a drain pan 8 and discharged out of the apparatus. In the second-stage cooling part 9, in the beginning, liquid N2 is passed through a cooling pipe 11 and N2 gas, through a regenerative pipe 12 in a setup to capture particulates of ice which have not been caught by the eliminator 7 in the first-stage cooling part 5, take the resulting water in a drain pan 13, and discharge it out of the apparatus.
Inventors:
Tadayoshi Yoshikawa
Application Number:
JP18053593A
Publication Date:
April 16, 2001
Filing Date:
July 22, 1993
Export Citation:
Assignee:
富士通株式会社
株式会社富士通東北エレクトロニクス
株式会社富士通東北エレクトロニクス
International Classes:
B01D51/02; F24F3/00; F24F3/16; F24F7/06; B01D50/00; (IPC1-7): F24F3/16; B01D50/00; B01D51/02; F24F7/06
Attorney, Agent or Firm:
Teiichi Igeta