Title:
IMPROVEMENT TO MEMBRANE TYPE DEAERATOR
Document Type and Number:
WIPO Patent Application WO/1994/003397
Kind Code:
A1
Abstract:
The membrane type deaerator according to the present invention is characterized by the arrangement and connected condition of a plurality of membrane deaerator modules and a water sealed vacuum pump connected thereto. These modules are series-connected between a raw water supply line and a deaeration water supply line. A first vacuum pump is connected to a first deaerator module via a deaeration line, and a second vacuum pump to a second deaerator module via the deaeration line. These vacuum pump are each provided with a seal water supply line which is used to send as seal water the raw water introduced from the water supply line thereinto to each of the first and second vacuum pumps, and a discharge line for the second vacuum pump is connected to the deaeration line for the first vacuum pump. In the membrane type deaerator thus formed, the deaeration performance is improved greatly, and a deaeration with dissolved oxygen concentration of several PPB can be carried out.
Inventors:
SENOO YASUTOSHI (JP)
SHIRAISHI HITOSHI (JP)
YASU NORIO (JP)
KAWAKAMI YASUHIRO (JP)
TOBISAKA YUKINORI (JP)
OCHI YASUO (JP)
MITSUKAMI YASUHITO (JP)
SHIGEMATSU TOSHITAKA (JP)
TACHINO KAZUHIRO (JP)
MIYAGAWA YASUHIRO (JP)
TAKEMATSU KENICHIRO (JP)
YANAGIHARA NOBUAKI (JP)
SHIRAISHI HITOSHI (JP)
YASU NORIO (JP)
KAWAKAMI YASUHIRO (JP)
TOBISAKA YUKINORI (JP)
OCHI YASUO (JP)
MITSUKAMI YASUHITO (JP)
SHIGEMATSU TOSHITAKA (JP)
TACHINO KAZUHIRO (JP)
MIYAGAWA YASUHIRO (JP)
TAKEMATSU KENICHIRO (JP)
YANAGIHARA NOBUAKI (JP)
Application Number:
PCT/JP1993/000138
Publication Date:
February 17, 1994
Filing Date:
February 04, 1993
Export Citation:
Assignee:
MIURA KOGYO KK (JP)
MIURA INST OF RESEARCH & DEV C (JP)
SENOO YASUTOSHI (JP)
SHIRAISHI HITOSHI (JP)
YASU NORIO (JP)
KAWAKAMI YASUHIRO (JP)
TOBISAKA YUKINORI (JP)
OCHI YASUO (JP)
MITSUKAMI YASUHITO (JP)
SHIGEMATSU TOSHITAKA (JP)
TACHINO KAZUHIRO (JP)
MIYAGAWA YASUHIRO (JP)
TAKEMATSU KENICHIRO (JP)
YANAGIHARA NOBUAKI (JP)
MIURA INST OF RESEARCH & DEV C (JP)
SENOO YASUTOSHI (JP)
SHIRAISHI HITOSHI (JP)
YASU NORIO (JP)
KAWAKAMI YASUHIRO (JP)
TOBISAKA YUKINORI (JP)
OCHI YASUO (JP)
MITSUKAMI YASUHITO (JP)
SHIGEMATSU TOSHITAKA (JP)
TACHINO KAZUHIRO (JP)
MIYAGAWA YASUHIRO (JP)
TAKEMATSU KENICHIRO (JP)
YANAGIHARA NOBUAKI (JP)
International Classes:
B01D19/00; B01D61/00; C02F1/20; F04B19/00; (IPC1-7): C02F1/20; B01D19/00
Foreign References:
| JPH03154601A | 1991-07-02 | |||
| JPS4998765A | 1974-09-18 | |||
| JPH02303587A | 1990-12-17 | |||
| JPH0332792A | 1991-02-13 |
Other References:
MICROFILM OF THE SPECIFICATION AND DRAWINGS ANNEXED TO THE WRITTEN APPLICATION OF JAPANESE UTILITY MODEL, Application No. 547814/1990 (Laid-Open No. 14188/1992), (MIURA KENKYUSHO K.K.), (05.02.92), pages 1 and 7.
MICROFILM OF THE SPECIFICATION AND DRAWINGS ANNEXED TO THE WRITTEN APPLICATION OF JAPANESE UTILITY MODEL, Application No. 118793/1989 (Laid-Open No. 59004/1991), (KURITA WATER INDUSTRIES LTD.), (10.06.91), pages 4-5.
MICROFILM OF THE SPECIFICATION AND DRAWINGS ANNEXED TO THE WRITTEN APPLICATION OF JAPANESE UTILITY MODEL, Application No. 118793/1989 (Laid-Open No. 59004/1991), (KURITA WATER INDUSTRIES LTD.), (10.06.91), pages 4-5.
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