Title:
PUMP EQUIPPED WITH FLOW RATE MEASUREMENT FUNCTION, AND BALLAST WATER TREATMENT DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2011/108493
Kind Code:
A1
Abstract:
The flow rate of a pump, which is installed in a small space, is measured with good accuracy.
A pump equipped with a flow rate measurement function comprises: a pump which has a first pressure outlet located on the downstream side of a suction-side flange and which also has a second pressure outlet located on the upstream side of a discharge-side flange; first and second pressure sensors respectively disposed at the first and second pressure outlets; a memory section which previously stores flow rate characteristics representing the relationship between a flow rate and the difference between the pressures detected by the first and second pressure sensors; a calculation section which calculates the difference between the pressures obtained from the first and second pressure sensors; and a computation section which computes a flow rate from the calculated difference and from the flow rate characteristics.
Inventors:
KUBOKI, Hiroyuki (5-7-21 Ohzu, Minami-ku, Hiroshima-sh, Hiroshima 02, 〒7320802, JP)
久保木 浩之 (〒02 広島県広島市南区大州５丁目７番２１号 株式会社シンコー内 Hiroshima, 〒7320802, JP)
HIRAO, Kazunobu (5-7-21 Ohzu, Minami-ku, Hiroshima-sh, Hiroshima 02, 〒7320802, JP)
久保木 浩之 (〒02 広島県広島市南区大州５丁目７番２１号 株式会社シンコー内 Hiroshima, 〒7320802, JP)
HIRAO, Kazunobu (5-7-21 Ohzu, Minami-ku, Hiroshima-sh, Hiroshima 02, 〒7320802, JP)
Application Number:
JP2011/054517
Publication Date:
September 09, 2011
Filing Date:
February 28, 2011
Export Citation:
Assignee:
SHINKO IND. LTD. (5-7-21, Ohzu Minami-ku, Hiroshima-sh, Hiroshima 02, 〒7320802, JP)
株式会社シンコー (〒02 広島県広島市南区大州５丁目７番２１号 Hiroshima, 〒7320802, JP)
Laboratory of Aquatic Science Consultant Corporation (Meishin Bldg, 1-14-1 Kamiikedai, Ota-k, Tokyo 64, 〒1450064, JP)
株式会社水圏科学コンサルタント (〒64 東京都大田区上池台１丁目１４番１号 明伸ビル Tokyo, 〒1450064, JP)
KATAYAMA CHEMICAL, INC. (1-6-7, Higashiawaji Higashiyodogawa-ku, Osaka-sh, Osaka 23, 〒5330023, JP)
株式会社片山化学工業研究所 (〒23 大阪府大阪市東淀川区東淡路１丁目６番７号 Osaka, 〒5330023, JP)
株式会社シンコー (〒02 広島県広島市南区大州５丁目７番２１号 Hiroshima, 〒7320802, JP)
Laboratory of Aquatic Science Consultant Corporation (Meishin Bldg, 1-14-1 Kamiikedai, Ota-k, Tokyo 64, 〒1450064, JP)
株式会社水圏科学コンサルタント (〒64 東京都大田区上池台１丁目１４番１号 明伸ビル Tokyo, 〒1450064, JP)
KATAYAMA CHEMICAL, INC. (1-6-7, Higashiawaji Higashiyodogawa-ku, Osaka-sh, Osaka 23, 〒5330023, JP)
株式会社片山化学工業研究所 (〒23 大阪府大阪市東淀川区東淡路１丁目６番７号 Osaka, 〒5330023, JP)
International Classes:
B63B13/00; C02F1/50; C02F1/76; C02F1/78; F04D7/06; F04D15/00
Attorney, Agent or Firm:
NOGAWA, Shintaro (Nogawa Patent Office, Nishitenma Five Bldg. 16-3, Nishitenma 5-chome, Kita-ku, Osaka-sh, Osaka 47, 〒5300047, JP)
Claims:
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