JP2000205171A - Prevention device for blockage at impeller inlet in vortex centrifugal pump - Google Patents
Prevention device for blockage at impeller inlet in vortex centrifugal pumpInfo
- Publication number
- JP2000205171A JP2000205171A JP11004036A JP403699A JP2000205171A JP 2000205171 A JP2000205171 A JP 2000205171A JP 11004036 A JP11004036 A JP 11004036A JP 403699 A JP403699 A JP 403699A JP 2000205171 A JP2000205171 A JP 2000205171A
- Authority
- JP
- Japan
- Prior art keywords
- impeller
- centrifugal pump
- vortex centrifugal
- inlet
- baffle plate
- 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.)
- Granted
Links
- 230000002265 prevention Effects 0.000 title claims 2
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 5
- 239000002351 wastewater Substances 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
(57)【要約】
【目的】ボルテックス型遠心ポンプの汚水汚物中での使
用時における繊維状、紐状異物の絡み付きによる羽根車
入口部の閉塞を防止するための装置を提供する。
【構成】羽根車１の入口部６を遮蔽するようバッフルプ
レート７の周辺部を羽根板内縁８・・・・８の下方部と
連接状に架設させた。この構成によりボルテックス型遠
心ポンプの駆動時において、ポンプ吸込口９から流入す
る汚水汚物は羽根車１の入口部６を経由することなく、
バッフルプレート７の周辺部から羽根板１０・・・・１
０間に導入せられ、ポンプ吐出口１１から吐出導管を通
って排出される。
(57) [Summary] [Object] An object of the present invention is to provide a device for preventing the impeller inlet portion from being clogged by entanglement of fibrous or string-like foreign matters when a vortex centrifugal pump is used in wastewater. [Constitution] A peripheral portion of a baffle plate 7 is connected to a lower portion of an inner edge 8 of a blade plate so as to shield an inlet portion 6 of the impeller 1 in a continuous manner. With this configuration, when the vortex centrifugal pump is driven, sewage filth flowing from the pump suction port 9 does not pass through the inlet 6 of the impeller 1,
From the periphery of the baffle plate 7 to the slats 10 ... 1
It is introduced during the interval 0 and discharged from the pump outlet 11 through a discharge conduit.
Description
【０００１】[0001]
【発明の技術分野】本発明は、ボルテックス型遠心ポン
プにおける羽根車入口部の閉塞防止装置に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vortex centrifugal centrifugal pump for preventing blockage of an inlet of an impeller.
【０００２】[0002]
【従来技術とその問題点】汚水汚物中での使用を目的と
したボルテックス型遠心ポンプでは図３に示よう、サク
ションカバー上面１０４と羽根板下縁１０３との間の間
隔Ｓが広く形成されているため、塊体の通過は容易であ
る。しかし羽根車１０１の入口部１０６の構造について
は清水中で使用される通常の遠心ポンプと何ら異なると
ころがないため、汚水汚物中に混在している繊維状、紐
状の異物が羽根車１０１の入口部１０６の羽根板内縁１
０８や羽根車締着部材１２０等に絡み付き、それが次第
に増大して入口部１０６全体を閉塞し、揚水不能や過負
荷運転状態を惹起することが屡であり、閉塞解除のため
手数の掛る清掃作業を頻繁に実施しなければならない。
また、ポンプ機場の補機設備として、予め揚液中の異物
を除去するためのスクリーン装置を設置することもある
が、その場合にはその設備費や、それを駆動させるため
の動力費等のランニングコストが別途必要となる。2. Description of the Related Art In a vortex centrifugal pump intended for use in sewage sewage, as shown in FIG. 3, the space S between the upper surface 104 of the suction cover and the lower edge 103 of the blade is widened. The lump is easy to pass through. However, the structure of the inlet portion 106 of the impeller 101 is not different from a normal centrifugal pump used in fresh water. Inner edge 1 of blade of section 106
08 and the impeller fastening member 120, etc., which gradually increase and close the entire inlet portion 106, often causing water pumping failure or an overload operation state. Work must be performed frequently.
In addition, a screen device for removing foreign substances in the pumped liquid may be installed in advance as auxiliary equipment of the pump station, but in that case, the equipment cost and the power cost for driving it are required. Running costs are required separately.
【０００３】[0003]
【発明の目的】本発明の目的は、ボルテックス型遠心ポ
ンプの汚水汚物中での使用時における繊維状、紐状異物
の絡み付きによる羽根車入口部の閉塞を防止するための
装置を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus for preventing the impeller impeller from being clogged by entanglement of fibrous or cord-like foreign matter when a vortex centrifugal pump is used in wastewater. is there.
【０００４】[0004]
【発明の構成】本発明に係るボルテックス型遠心ポンプ
における羽根車入口部の閉塞防止装置では、羽根車の入
口部を遮蔽するようバッフルプレートの周辺部を羽根板
内縁の下方部と連接状に架設させた。In the vortex centrifugal pump according to the present invention, in the impeller inlet blocking device, the periphery of the baffle plate is connected to the lower part of the inner edge of the impeller so as to shield the inlet of the impeller. I let it.
【０００５】[0005]
【実施例】以下実施例の図面により説明をする。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments will be described below with reference to the drawings.
【０００６】１はポンプ軸２の導下部に装着された羽根
車で、塊体状固形物の通過性を良好にするため、羽根板
下縁３・・・・３とサクションカバー上面４との間の間
隔Ｓを広く保有させた態様でポンプケーシング５内に収
容されており、入口部６はバッフルプレート７で遮蔽さ
れるよう、バッフルプレート７の周辺部を各羽根板内縁
８・・・・８の下方部と連接状に架設する。バッフルプ
レート７の下面はフラットに形成されてもよいが、図１
に見られるよう中央部が下方へ打ち出されたコーン状に
形成することが望ましい。しかしバッフルプレート７の
周辺部は羽根板下縁３・・・・３とほぼツライチ状に形
成すべきである。Reference numeral 1 denotes an impeller mounted on a lower portion of the pump shaft 2. The impeller 1 is provided between the lower edges 3... Are housed in the pump casing 5 in such a manner that the gap S between them is widely held, and the periphery of the baffle plate 7 is covered with each blade inner edge 8 so that the inlet 6 is shielded by the baffle plate 7. 8 and connected to the lower part of the same. Although the lower surface of the baffle plate 7 may be formed flat, FIG.
It is desirable that the central portion be formed in a cone shape that is projected downward as shown in FIG. However, the peripheral portion of the baffle plate 7 should be formed in a substantially tri-shape with the lower edges 3...
【０００７】ボルテックス型遠心ポンプの駆動時におい
て、ポンプ吸込口９から流入する汚水汚物は羽根車１と
同一の回転方向に旋回しながら、バッフルプレート７の
周辺部から羽根板１０・・・・１０間に導入せられ、ポ
ンプ吐出口１１から吐出導管（図示せず）を通って排出
される。即ち、バッフルプレート７が存在することによ
り、汚水汚物は羽根車１の入口部６を経由することなく
羽根板１０・・・・１０間に導入されるため、汚水汚物
中に混在している繊維状、紐状の異物が締着部材や羽根
板内縁８に絡み付くことはない。When the vortex centrifugal pump is driven, the filth flowing from the pump suction port 9 rotates from the periphery of the baffle plate 7 to the blades 10 while rotating in the same rotational direction as the impeller 1. It is introduced in between and discharged from the pump outlet 11 through a discharge conduit (not shown). That is, the presence of the baffle plate 7 allows the sewage sewage to be introduced between the blade plates 10... 10 without passing through the inlet 6 of the impeller 1. The string-like and string-like foreign substances do not entangle with the fastening member or the inner edge 8 of the blade plate.
【０００８】[0008]
【発明の効果】本発明では、簡潔な付加構成により、揚
水性能を左程低下させることなく、繊維状、紐状異物の
絡み付きによる羽根車入口部の閉塞を防止することがで
き、従来のように手数の掛る清掃作業が不要となり、ま
た、スクリーン装置等の補機設備も必要がなくなるた
め、設備費およびランニングコストを軽減し得るという
利点がある。According to the present invention, it is possible to prevent the entrance of the impeller due to the entanglement of the fibrous or cord-like foreign matter without deteriorating the water pumping performance to the left by a simple additional configuration. This eliminates the need for troublesome cleaning work and eliminates the need for auxiliary equipment such as a screen device, so that there is an advantage that equipment costs and running costs can be reduced.
【図１】本発明装置を施したボルテックス型遠心ポンプ
の要部縦断側面図である。FIG. 1 is a vertical sectional side view of a main part of a vortex type centrifugal pump provided with the device of the present invention.
【図２】図１における羽根車の下方から見た底面図であ
る。FIG. 2 is a bottom view of the impeller shown in FIG. 1 as viewed from below.
【図３】従来のボルテックス型遠心ポンプの要部縦断側
面図である。FIG. 3 is a longitudinal sectional side view of a main part of a conventional vortex centrifugal pump.
１ 羽根車 ６ 羽根車の入口部 ７ バッフルプレート ８ 羽根板内縁 DESCRIPTION OF SYMBOLS 1 Impeller 6 Impeller entrance 7 Baffle plate 8 Inner edge of impeller
Claims (1)
プレートの周辺部を羽根板内縁の下方部と連接状に架設
させたことを特徴とする、ボルテックス型遠心ポンプに
おける羽根車入口部の閉塞防止装置。1. A blockage of an inlet of an impeller in a vortex centrifugal pump, wherein a peripheral portion of a baffle plate is connected to a lower portion of an inner edge of the impeller so as to shield an inlet of the impeller. Prevention device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00403699A JP4362157B2 (en) | 1999-01-11 | 1999-01-11 | Blockage prevention device for impeller inlet in vortex type centrifugal pump used in sewage filth containing fibrous and string-like foreign matters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00403699A JP4362157B2 (en) | 1999-01-11 | 1999-01-11 | Blockage prevention device for impeller inlet in vortex type centrifugal pump used in sewage filth containing fibrous and string-like foreign matters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000205171A true JP2000205171A (en) | 2000-07-25 |
| JP4362157B2 JP4362157B2 (en) | 2009-11-11 |
Family
ID=11573747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00403699A Expired - Lifetime JP4362157B2 (en) | 1999-01-11 | 1999-01-11 | Blockage prevention device for impeller inlet in vortex type centrifugal pump used in sewage filth containing fibrous and string-like foreign matters |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4362157B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459190A (en) * | 2022-03-01 | 2022-05-10 | 青岛海容商用冷链股份有限公司 | Prevent drainage and freeze stifled refrigerator-freezer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5540391Y2 (en) * | 1975-06-24 | 1980-09-20 | ||
| JPS586990U (en) * | 1981-07-07 | 1983-01-17 | 株式会社荏原製作所 | vortex pump |
| JPS6058898U (en) * | 1983-09-30 | 1985-04-24 | 新明和工業株式会社 | Protection device for sewage pump impeller |
| JPS61157191U (en) * | 1985-03-22 | 1986-09-29 |
-
1999
- 1999-01-11 JP JP00403699A patent/JP4362157B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5540391Y2 (en) * | 1975-06-24 | 1980-09-20 | ||
| JPS586990U (en) * | 1981-07-07 | 1983-01-17 | 株式会社荏原製作所 | vortex pump |
| JPS6058898U (en) * | 1983-09-30 | 1985-04-24 | 新明和工業株式会社 | Protection device for sewage pump impeller |
| JPS61157191U (en) * | 1985-03-22 | 1986-09-29 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459190A (en) * | 2022-03-01 | 2022-05-10 | 青岛海容商用冷链股份有限公司 | Prevent drainage and freeze stifled refrigerator-freezer |
| CN114459190B (en) * | 2022-03-01 | 2024-04-09 | 青岛海容商用冷链股份有限公司 | Anti-water-drainage freezing-blocking refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4362157B2 (en) | 2009-11-11 |
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