JPH0185492U - - Google Patents
Info
- Publication number
- JPH0185492U JPH0185492U JP18089887U JP18089887U JPH0185492U JP H0185492 U JPH0185492 U JP H0185492U JP 18089887 U JP18089887 U JP 18089887U JP 18089887 U JP18089887 U JP 18089887U JP H0185492 U JPH0185492 U JP H0185492U
- Authority
- JP
- Japan
- Prior art keywords
- water supply
- water
- exhaust passage
- supply pump
- intake port
- 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 23
- 230000037452 priming Effects 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 239000008400 supply water Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
第１図は本考案の呼水装置の第１実施例を示す
給水ポンプの一部断面正面図、第２図は本考案の
第２実施例の要部断面図、第３図は本考案の第３
実施例の要部断面図、第４図は本考案の第４実施
例の要部断面図、第５図は従来の呼水装置を示す
給水ポンプの一部断面正面図である。
１Ｂ…給水ポンプの吸水口部、２…羽根車（吸
水ロータ）、５…排気通路、５Ａ…排気取出口、
６…真空ポンプ、７…逆止弁、１０…排気取出口
の周縁部における給水ロータの回転による水流の
流れ方向からみた上流側部分、１１…排気取出口
の周縁部における給水ロータの回転による水流の
流れ方向からみた下流側部分、イ…排気取出口の
周縁部における給水ロータの回転による水流の流
れ方向。
Fig. 1 is a partial cross-sectional front view of a water supply pump showing the first embodiment of the priming device of the present invention, Fig. 2 is a sectional view of main parts of the second embodiment of the present invention, and Fig. 3 is a partial cross-sectional view of a water supply pump showing the first embodiment of the priming device of the present invention. Third
FIG. 4 is a cross-sectional view of a main part of the fourth embodiment of the present invention, and FIG. 5 is a partially cross-sectional front view of a water supply pump showing a conventional water priming device. 1B... Water intake port of water supply pump, 2... Impeller (water intake rotor), 5... Exhaust passage, 5A... Exhaust outlet,
6...Vacuum pump, 7...Check valve, 10...Upstream side portion as viewed from the flow direction of water flow due to rotation of the water supply rotor at the periphery of the exhaust outlet, 11...Water flow due to rotation of the water supply rotor at the periphery of the exhaust outlet The downstream part as seen from the flow direction, A...The flow direction of the water flow due to the rotation of the water supply rotor at the peripheral edge of the exhaust outlet.
Claims (1)
の吸水口部に排気取出口を開口させて排気通路が
設けられ、前記排気通路の先端に真空ポンプが設
けられ、前記排気通路の途中には前記真空ポンプ
の停止中に外気が前記吸水口部に入るのを阻止す
る逆止弁が設けられている給水ポンプの呼水装置
において、 前記排気取出口の周縁部における前記排気通路
側から前記吸水口部の中心側をみた高さは、前記
給水ポンプの吐出口を閉じた状態での前記給水ロ
ータの回転による水流の流れ方向からみて、下流
側部分が上流側部分より低く形成されていること
を特徴とする給水ポンプの呼水装置。[Scope of Claim for Utility Model Registration] A water supply pump that rotates a water supply rotor to supply water is provided with an exhaust passage with an exhaust outlet opened at the water intake port, and a vacuum pump is provided at the tip of the exhaust passage, In the priming device for a water supply pump, a check valve is provided in the middle of the exhaust passage to prevent outside air from entering the water intake port while the vacuum pump is stopped. The height of the center of the water intake port when viewed from the exhaust passage side is such that the downstream part is higher than the upstream part when viewed from the flow direction of water flow due to rotation of the water supply rotor with the discharge port of the water supply pump closed. A priming device for a water supply pump characterized by being formed low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18089887U JPH0185492U (en) | 1987-11-27 | 1987-11-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18089887U JPH0185492U (en) | 1987-11-27 | 1987-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0185492U true JPH0185492U (en) | 1989-06-06 |
Family
ID=31472402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18089887U Pending JPH0185492U (en) | 1987-11-27 | 1987-11-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0185492U (en) |
-
1987
- 1987-11-27 JP JP18089887U patent/JPH0185492U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH02105598U (en) | ||
| JPS63121793U (en) | ||
| JPH02149896U (en) | ||
| JPH03116798U (en) | ||
| JPS62135888U (en) | ||
| JPS5822500U (en) | Rectifier plate to prevent pump noise and vibration | |
| JPH0212097U (en) | ||
| JPS6334388U (en) | ||
| JPH03118286U (en) | ||
| JPH0276192U (en) | ||
| JPH046790U (en) | ||
| JPH0335296U (en) | ||
| JPS6419095U (en) | ||
| JPH0287996U (en) | ||
| JPS62138888U (en) | ||
| JPS62180691U (en) | ||
| JPS6192789U (en) | ||
| JPS63112298U (en) | ||
| JPH0290392U (en) | ||
| JPH0219899U (en) | ||
| JPH03123994U (en) | ||
| JPS5930586U (en) | Contaminant cutting mechanism in submersible pumps | |
| JPH0226792U (en) | ||
| JPS63186994U (en) | ||
| JPH01136698U (en) |