JP4414963B2 - 曝気用エジェクター - Google Patents
曝気用エジェクター Download PDFInfo
- Publication number
- JP4414963B2 JP4414963B2 JP2005503384A JP2005503384A JP4414963B2 JP 4414963 B2 JP4414963 B2 JP 4414963B2 JP 2005503384 A JP2005503384 A JP 2005503384A JP 2005503384 A JP2005503384 A JP 2005503384A JP 4414963 B2 JP4414963 B2 JP 4414963B2
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- small
- ejector
- diameter pipe
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1278—Provisions for mixing or aeration of the mixed liquor
- C02F3/1294—"Venturi" aeration means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
- B01F25/31242—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/22—Activated sludge processes using circulation pipes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Description
第2図は、本発明にかかる曝気用エジェクターの他の態様を示した部分縦断正面図である。
第3図は、A/B比をパラメータにした酸素溶解速度の実験結果を示す線図である。
第4図は、酸素溶解速度の経時的な増加曲線を示すグラフである。
Claims (5)
- 両側に大径管部が設けられた所要長さの管体の中途部が絞られるように形成された所要長さの小径管部内にコンプレッサーと連絡するコンプレッサー接続部が設けられてなり、前記大径管部の一端部に設けられた接続口に水中ポンプの吐き出し口が接続され、前記水中ポンプから圧送された水に前記コンプレッサーから圧送された空気を噴射して前記水に酸素を溶解させた水を生成し、該水を前記大径管部の他端部に設けられた放出口から放出させる曝気用エジェクターであって、前記放出口側の大径部の管径を70ミリメートル、小径管部の管径を20ミリメートル、コンプレッサーの空気吐出量を約70リットル/分、水中ポンプの水吐出量を約280リットル/分とした時に、前記放出口側の前記小径管部縁部から前記放出口までの距離Aと、前記水中ポンプの吐き出し口側の前記小径管部縁部から前記接続口までの距離Bとの比であるA/B比が0.40〜0.84程度であることを特徴とする曝気用エジェクター。
- 前記A/B比0.40〜0.84程度に替えて前記A/B比0.50〜0.63程度であることを特徴とする請求項1に記載の曝気用エジェクター。
- 前記管体の内面に、前記放出口側の前記小径管部縁部から前記放出口に続くテーパ構造と、前記水中ポンプの吐き出し口側の前記小径管部縁部から前記接続口に続くテーパ構造とが設けられていることを特徴とする請求項1又は2に記載の曝気用エジェクター。
- 前記小径管部と前記コンプレッサー接続部とが、水の噴射方向に対して60°〜120°程度の角度で接続されてなることを特徴とする請求項1乃至3のいずれかに記載の曝気用エジェクター。
- 前記大径管部が小径管部の両側にそれぞれ着脱可能に設けられたことを特徴とする請求項1に記載の曝気用エジェクター。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2003/008530 WO2005003043A1 (ja) | 2003-07-04 | 2003-07-04 | 曝気用エジェクター |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2005003043A1 JPWO2005003043A1 (ja) | 2006-08-10 |
JP4414963B2 true JP4414963B2 (ja) | 2010-02-17 |
Family
ID=33562087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005503384A Expired - Fee Related JP4414963B2 (ja) | 2003-07-04 | 2003-07-04 | 曝気用エジェクター |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP4414963B2 (ja) |
CN (1) | CN1802321A (ja) |
AU (1) | AU2003244207A1 (ja) |
TW (1) | TW200502181A (ja) |
WO (1) | WO2005003043A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100578050B1 (ko) * | 2005-05-16 | 2006-05-12 | 이바도 | 하천 정화 장치 |
CN101830555B (zh) * | 2009-03-09 | 2011-12-28 | 江西金达莱环保研发中心有限公司 | 一种射流曝气装置及其射流曝气方法 |
CN103990394B (zh) * | 2014-04-30 | 2016-06-15 | 重庆优楷科技有限公司 | 一种用于污水处理过程中的离心射流装置 |
JP6340277B2 (ja) * | 2014-07-18 | 2018-06-06 | 株式会社ディスコ | 加工装置 |
JP6526518B2 (ja) * | 2015-08-12 | 2019-06-05 | 株式会社川本製作所 | 微細気泡発生装置及び微細気泡発生システム |
WO2018088482A1 (ja) * | 2016-11-14 | 2018-05-17 | Kyb株式会社 | 流体送入装置及び流体送入システム |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0370730U (ja) * | 1989-11-14 | 1991-07-16 | ||
GB9405000D0 (en) * | 1994-03-15 | 1994-04-27 | Boc Group Plc | Gas dissolving |
JP2002331299A (ja) * | 2001-05-10 | 2002-11-19 | Sys Yoshida:Kk | 水域内に微細気泡を均等に配分する方法 |
-
2003
- 2003-07-04 CN CNA038267349A patent/CN1802321A/zh active Pending
- 2003-07-04 WO PCT/JP2003/008530 patent/WO2005003043A1/ja active Application Filing
- 2003-07-04 JP JP2005503384A patent/JP4414963B2/ja not_active Expired - Fee Related
- 2003-07-04 AU AU2003244207A patent/AU2003244207A1/en not_active Abandoned
- 2003-11-19 TW TW092132448A patent/TW200502181A/zh unknown
Also Published As
Publication number | Publication date |
---|---|
AU2003244207A1 (en) | 2005-01-21 |
TW200502181A (en) | 2005-01-16 |
WO2005003043A1 (ja) | 2005-01-13 |
CN1802321A (zh) | 2006-07-12 |
JPWO2005003043A1 (ja) | 2006-08-10 |
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