JP4646529B2 - 水中遠心ポンプの拘束防止構造 - Google Patents
水中遠心ポンプの拘束防止構造 Download PDFInfo
- Publication number
- JP4646529B2 JP4646529B2 JP2004049930A JP2004049930A JP4646529B2 JP 4646529 B2 JP4646529 B2 JP 4646529B2 JP 2004049930 A JP2004049930 A JP 2004049930A JP 2004049930 A JP2004049930 A JP 2004049930A JP 4646529 B2 JP4646529 B2 JP 4646529B2
- Authority
- JP
- Japan
- Prior art keywords
- impeller
- pump casing
- peripheral surface
- centrifugal pump
- outer peripheral
- 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 - Lifetime
Links
- 230000002265 prevention Effects 0.000 title claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 29
- 239000007788 liquid Substances 0.000 description 12
- 238000005086 pumping Methods 0.000 description 9
- 230000001771 impaired effect Effects 0.000 description 4
- 239000010865 sewage Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
2 羽根車
4a 広い間隙
4b 狭い間隙
5 羽根板
5a 外周長さ
5e 羽根板先端部
Claims (5)
- ポンプケーシングに内装される、下端面が開放状態の羽根板がシュラウドの下面に植設され、該羽根板の下端面が該ポンプケーシング内の底面と狭い間隙で対向するように形成された羽根車と、同心状に形成された該ポンプケーシングの内周面と、前記羽根車の外周面との間に形成される環状間隙(側方クリアランス)が、上方部で狭く下方部で広く形成されていることを特徴とする、水中遠心ポンプの拘束防止構造。
- 羽根車の外周面が、上方部よりも下方部で小径に形成されていることを特徴とする、請求項1記載の水中遠心ポンプの拘束防止構造。
- ポンプケーシングの内周面が、上方部よりも下方部で大径に形成されていることを特徴とする、請求項1記載の水中遠心ポンプの拘束防止構造。
- ポンプケーシングの内周面が、上方部よりも下方部で大径に形成され、且つ、羽根車の外周面が、上方部よりも下方部で小径に形成されていることを特徴とする、請求項1記載の水中遠心ポンプの拘束防止構造。
- 羽根車の羽根板は、先端部の肉厚を薄くし該先端部における外周長さが短くなるよう構成したことを特徴とする、請求項1ないし4のいずれか1項に記載の水中遠心ポンプの拘束防止構造。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004049930A JP4646529B2 (ja) | 2004-02-25 | 2004-02-25 | 水中遠心ポンプの拘束防止構造 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004049930A JP4646529B2 (ja) | 2004-02-25 | 2004-02-25 | 水中遠心ポンプの拘束防止構造 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005240628A JP2005240628A (ja) | 2005-09-08 |
JP4646529B2 true JP4646529B2 (ja) | 2011-03-09 |
Family
ID=35022636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004049930A Expired - Lifetime JP4646529B2 (ja) | 2004-02-25 | 2004-02-25 | 水中遠心ポンプの拘束防止構造 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4646529B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110280718A1 (en) * | 2007-12-21 | 2011-11-17 | Yonehara Giken Co., Ltd. | Pressurizing centrifugal pump |
JP7073137B2 (ja) * | 2018-02-23 | 2022-05-23 | 株式会社荏原製作所 | 遠心ポンプ |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55135191U (ja) * | 1979-03-16 | 1980-09-25 | ||
JPS586990U (ja) * | 1981-07-07 | 1983-01-17 | 株式会社荏原製作所 | ボルテツクスポンプ |
JPS60188887U (ja) * | 1984-05-25 | 1985-12-14 | 新明和工業株式会社 | 渦流ポンプ用羽根車 |
JPS6422891U (ja) * | 1987-07-31 | 1989-02-07 | ||
JPH01294997A (ja) * | 1988-05-20 | 1989-11-28 | Hitachi Ltd | 可動翼ポンプ |
JPH0397117U (ja) * | 1990-01-25 | 1991-10-04 | ||
JPH0791389A (ja) * | 1993-09-24 | 1995-04-04 | Kubota Corp | 水中立型ポンプの運転方法 |
JP2002021769A (ja) * | 2000-07-04 | 2002-01-23 | Tsurumi Mfg Co Ltd | 水中ポンプにおけるサクションカバーおよびストレーナの定着構造 |
-
2004
- 2004-02-25 JP JP2004049930A patent/JP4646529B2/ja not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55135191U (ja) * | 1979-03-16 | 1980-09-25 | ||
JPS586990U (ja) * | 1981-07-07 | 1983-01-17 | 株式会社荏原製作所 | ボルテツクスポンプ |
JPS60188887U (ja) * | 1984-05-25 | 1985-12-14 | 新明和工業株式会社 | 渦流ポンプ用羽根車 |
JPS6422891U (ja) * | 1987-07-31 | 1989-02-07 | ||
JPH01294997A (ja) * | 1988-05-20 | 1989-11-28 | Hitachi Ltd | 可動翼ポンプ |
JPH0397117U (ja) * | 1990-01-25 | 1991-10-04 | ||
JPH0791389A (ja) * | 1993-09-24 | 1995-04-04 | Kubota Corp | 水中立型ポンプの運転方法 |
JP2002021769A (ja) * | 2000-07-04 | 2002-01-23 | Tsurumi Mfg Co Ltd | 水中ポンプにおけるサクションカバーおよびストレーナの定着構造 |
Also Published As
Publication number | Publication date |
---|---|
JP2005240628A (ja) | 2005-09-08 |
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