JPH0342096U - - Google Patents
Info
- Publication number
- JPH0342096U JPH0342096U JP10324689U JP10324689U JPH0342096U JP H0342096 U JPH0342096 U JP H0342096U JP 10324689 U JP10324689 U JP 10324689U JP 10324689 U JP10324689 U JP 10324689U JP H0342096 U JPH0342096 U JP H0342096U
- Authority
- JP
- Japan
- Prior art keywords
- tank
- leg
- peripheral wall
- branch pipe
- suction
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
Description
第１図は本考案の実施例を示す側面図、第２図
はサイホン管の変形例を示す説明断面図、第３図
は従来の説明図、第４図は比較例の説明図である
。
２……吸込側ケーシング、３……逆Ｕ字状の分
岐管、６……羽根車室、７……分岐管の下部開放
端、８……分岐管の折返し部、１３……タンク、
１３Ａ……周壁、１３ａ……上端、１５……サイ
ホン管、１５Ａ……一方の足、１５ａ……下部開
放端、１５Ｂ……他方の足、１５Ｃ……上端折返
し部、１６……連通管、ＷＬ……揚水開始水位、
ＬＷＬ……最低水位、Ｐ……吸水井。
FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is an explanatory sectional view showing a modified example of the siphon tube, FIG. 3 is an explanatory view of the conventional method, and FIG. 4 is an explanatory view of a comparative example. 2... Suction side casing, 3... Inverted U-shaped branch pipe, 6... Impeller chamber, 7... Lower open end of branch pipe, 8... Turned part of branch pipe, 13... Tank,
13A... Peripheral wall, 13a... Upper end, 15... Siphon tube, 15A... One leg, 15a... Lower open end, 15B... Other leg, 15C... Upper end folded part, 16... Communication pipe, WL...pumping start water level,
LWL...Lowest water level, P...Water well.
Claims (1)
状の分岐管が接続され、この分岐管の逆Ｕ字状の
折返し部が羽根車室に発生する最大負圧による吸
込揚程よりも高い位置に設定され、上部を開口し
て周壁の上端を立軸ポンプの揚水開始水位もしく
はその付近に設定したタンクが吸水井に配置され
、このタンク内に前記分岐管の下部開放端が挿入
されるとともに、前記タンクの周壁に吸水井側の
一方の足の下部開放端が立軸ポンプの最低水位も
しくはその付近に設定されかつ前記一方の足とタ
ンク側の他方の足とをつなぐ上端折返し部をタン
クの周壁上端と同じレベルに設定したサイホン管
が取付けられ、前記吸込側ケーシングと前記タン
クの底内部とが連通管によつて互いに連通されて
いることを特徴とする立軸ポンプ。 An inverted U-shaped branch pipe is connected to the suction side casing that communicates with the impeller chamber, and the inverted U-shaped folded part of this branch pipe is located at a position higher than the suction head due to the maximum negative pressure generated in the impeller chamber. A tank with an open top and an upper end of the peripheral wall set at or near the pumping start water level of the vertical pump is placed in the water suction well, and the lower open end of the branch pipe is inserted into this tank. The lower open end of one leg on the water suction well side is set at or near the lowest water level of the vertical shaft pump on the peripheral wall of the tank, and the upper end folded part connecting said one leg and the other leg on the tank side is set at the upper end of the peripheral wall of the tank. A vertical shaft pump, characterized in that a siphon pipe set at the same level as is attached, and the suction side casing and the inside of the bottom of the tank are communicated with each other by a communication pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10324689U JPH0342096U (en) | 1989-09-01 | 1989-09-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10324689U JPH0342096U (en) | 1989-09-01 | 1989-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0342096U true JPH0342096U (en) | 1991-04-22 |
Family
ID=31652095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10324689U Pending JPH0342096U (en) | 1989-09-01 | 1989-09-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0342096U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4581027B1 (en) * | 2009-10-19 | 2010-11-17 | コデラカプロン株式会社 | Mask filter and manufacturing method thereof, mask filter pocket and mask |
-
1989
- 1989-09-01 JP JP10324689U patent/JPH0342096U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4581027B1 (en) * | 2009-10-19 | 2010-11-17 | コデラカプロン株式会社 | Mask filter and manufacturing method thereof, mask filter pocket and mask |
| JP2011083549A (en) * | 2009-10-19 | 2011-04-28 | Kodera Coplon Kk | Mask filter, method for producing same, pocket for mask filter, and mask |