JPH0484790U - - Google Patents
Info
- Publication number
- JPH0484790U JPH0484790U JP12931390U JP12931390U JPH0484790U JP H0484790 U JPH0484790 U JP H0484790U JP 12931390 U JP12931390 U JP 12931390U JP 12931390 U JP12931390 U JP 12931390U JP H0484790 U JPH0484790 U JP H0484790U
- Authority
- JP
- Japan
- Prior art keywords
- self
- priming
- stage impeller
- partition plate
- final stage
- 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.)
- Pending
Links
- 238000005192 partition Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000010992 reflux Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
第１図は本考案の一実施例の自吸式多段渦巻ポ
ンプの側面断面図、第２図は従来の自吸式多段ポ
ンプの側面断面図、第３図は従来の２段目羽根車
５の翼端５ａと、還流孔８ａとの関係を示す関係
図である。
１５……駆動機、１８……出力軸、１９……２
段目羽根車（最終段羽根車）、２０……１段目羽
根車（前段羽根車）、２１……気水分離室、２２
……仕切板、２２ａ……還流孔、２４……吸い込
みケーシング、２５……吐き出しケーシング。
FIG. 1 is a side sectional view of a self-priming multistage centrifugal pump according to an embodiment of the present invention, FIG. 2 is a side sectional view of a conventional self-priming multistage pump, and FIG. 3 is a conventional second-stage impeller 5. It is a relationship diagram showing the relationship between the blade tip 5a and the reflux hole 8a. 15...Driver, 18...Output shaft, 19...2
Stage impeller (last stage impeller), 20... First stage impeller (previous stage impeller), 21... Steam/water separation chamber, 22
... Partition plate, 22a ... Reflux hole, 24 ... Suction casing, 25 ... Discharge casing.
Claims (1)
水分離室を形成する仕切板を設け、前記仕切板と
羽根車を収納する吸込ケーシングを備え、前記最
終段羽根車からの吐出液を吐出する吐出ケーシン
グを、前記仕切板の気水分離の上部に前記吸込ケ
ーシングを介して固定してなる自吸式多段渦巻ポ
ンプの、自吸用前記最終段羽根車の外径Ｄ２と前
段羽根車外径Ｄ２′を変更し前記仕切板に設けた
還流孔と自吸用前記最終段羽根車の外径Ｄ２を最
適にすることを特徴とする自吸式多段渦巻ポンプ
。 A partition plate forming an air-water separation chamber for self-priming is provided between the final stage impeller and the pre-stage impeller, and a suction casing is provided to house the partition plate and the impeller, and the discharge from the final stage impeller is provided. An outer diameter D2 of the final stage impeller for self-priming of a self-priming multi-stage centrifugal pump in which a discharge casing for discharging liquid is fixed to the upper part of the air-water separator of the partition plate via the suction casing. A self-priming multistage centrifugal pump characterized in that the outer diameter D2 ' of the front-stage impeller is changed to optimize the outer diameter D2 of the return hole provided in the partition plate and the self-priming final stage impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12931390U JPH0484790U (en) | 1990-11-30 | 1990-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12931390U JPH0484790U (en) | 1990-11-30 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0484790U true JPH0484790U (en) | 1992-07-23 |
Family
ID=31876719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12931390U Pending JPH0484790U (en) | 1990-11-30 | 1990-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0484790U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5226001A (en) * | 1975-08-23 | 1977-02-26 | Ebara Corp | Self-feeding type multistage pump |
-
1990
- 1990-11-30 JP JP12931390U patent/JPH0484790U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5226001A (en) * | 1975-08-23 | 1977-02-26 | Ebara Corp | Self-feeding type multistage pump |
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