JPS595200Y2 - Pump suction vortex prevention device - Google Patents
Pump suction vortex prevention deviceInfo
- Publication number
- JPS595200Y2 JPS595200Y2 JP11298078U JP11298078U JPS595200Y2 JP S595200 Y2 JPS595200 Y2 JP S595200Y2 JP 11298078 U JP11298078 U JP 11298078U JP 11298078 U JP11298078 U JP 11298078U JP S595200 Y2 JPS595200 Y2 JP S595200Y2
- Authority
- JP
- Japan
- Prior art keywords
- pump
- prevention device
- liquid level
- diffusion plate
- pump casing
- 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
Links
Landscapes
- Details Of Reciprocating Pumps (AREA)
Description
【考案の詳細な説明】
本考案はポンプのオープン吸込槽における吸込流防止装
置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a suction flow prevention device in an open suction tank of a pump.
従来自由液面を有するオープン吸込槽１内の液体をポン
プ２に吸込ませる場合、その吸込流によりベルマウスか
ら水面上まで連なる吸込流Ｂが発生するので、それを防
ぐために横梁３および旋回防止板４を設けていた。Conventionally, when the liquid in the open suction tank 1 having a free liquid level is sucked into the pump 2, the suction flow generates a suction flow B that continues from the bell mouth to above the water surface. 4 was set.
しかしそれらを設けるためには、実際のオープン吸込槽
１を模した模型試験によって横梁３および旋回防止板４
の設置位置、大きさ等を決定していたのでコスト高をま
ねいていた。However, in order to install them, it is necessary to carry out a model test simulating the actual open suction tank 1 to ensure that the cross beams 3 and rotation prevention plates 4 are
The installation location, size, etc. had to be determined, leading to high costs.
本考案は上記に鑑み簡単な構造で吸込滑を防止できるポ
ンプの吸込流防止装置を提案するものである。In view of the above, the present invention proposes a suction flow prevention device for a pump that can prevent suction slippage with a simple structure.
以下、本考案を第２図に示す一実施例により説明する。The present invention will be explained below with reference to an embodiment shown in FIG.
液面５が自由表面であるオープン吸込槽６において、液
面５下のポンプケーシング８の外周面に液面５と平行な
拡散板９を設け、拡散板９の下方位置においてポンプケ
ーシング８にポンプケーシング内の吐出流Ｃの１部を拡
散板９に向けて噴出するための噴流口１０が設けられて
いる。In an open suction tank 6 in which the liquid level 5 is a free surface, a diffusion plate 9 parallel to the liquid level 5 is provided on the outer peripheral surface of the pump casing 8 below the liquid level 5, and the pump is attached to the pump casing 8 at a position below the diffusion plate 9. A jet port 10 is provided for jetting a portion of the discharge flow C within the casing toward the diffusion plate 9.
しかして、吸込時、ポンプ吐出流Ｃの一部が噴流口１０
より拡散板９へ向って噴出し拡散板９に当たり拡散板９
によりその噴流は分散されオープン槽６の液面５を乱す
ことになり、吸込流の発生を防止ずみごとができる。Therefore, during suction, a part of the pump discharge flow C flows into the jet port 10.
It ejects toward the diffuser plate 9 and hits the diffuser plate 9.
As a result, the jet stream is dispersed and disturbs the liquid level 5 of the open tank 6, thereby preventing the generation of a suction stream.
以上、述べたごとく本考案は、自由液面下のポンプケー
シングの外周面に該液面と平行に拡散板を設け、該拡散
板の下方位置において該ポンプケーシングにポンプケー
シング内の吐出流の１部を拡散板に向けて噴出させるた
めの噴流口を設けた簡単な構造により吸込流を効果的に
防止することができ、コストも極めて安価となる。As described above, the present invention provides a diffusion plate on the outer circumferential surface of the pump casing below the free liquid level in parallel with the liquid level, and at a position below the diffusion plate, the pump casing receives a portion of the discharge flow inside the pump casing. A simple structure provided with a jet port for ejecting the parts toward the diffuser plate can effectively prevent the suction flow, and the cost is also extremely low.
【図面の簡単な説明】
第１図は従来の吸込流防止装置を示す断面図、第２図は
本考案の一実施例を示す断面図である。
５・・・・・・液面、６・・・・・・オープン槽、７・
・・・・・ポンプ、８・・・・・・ポンプケーシング、
９・・・・・・拡散板、Ｃ・・・・・・ポンプ吐出流、
１０・・・・・・噴流口。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing a conventional suction flow prevention device, and FIG. 2 is a sectional view showing an embodiment of the present invention. 5...Liquid level, 6...Open tank, 7.
...Pump, 8...Pump casing,
9...Diffusion plate, C...Pump discharge flow,
10... Jet outlet.
Claims (1)
に拡散板を設け、該拡散板の下方位置において該ポンプ
ケーシングにポンプケーシング内の吐出流の１部を該拡
散板に向けて噴出させるための噴流口を設けたことを特
徴としたポンプの吸込流防止装置。A diffusion plate is provided on the outer circumferential surface of the pump casing below the free liquid level in parallel with the liquid level, and a part of the discharge flow in the pump casing is ejected to the pump casing at a position below the diffusion plate toward the diffusion plate. A suction flow prevention device for a pump, characterized by having a jet port for preventing the suction flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11298078U JPS595200Y2 (en) | 1978-08-18 | 1978-08-18 | Pump suction vortex prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11298078U JPS595200Y2 (en) | 1978-08-18 | 1978-08-18 | Pump suction vortex prevention device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5530914U JPS5530914U (en) | 1980-02-28 |
| JPS595200Y2 true JPS595200Y2 (en) | 1984-02-16 |
Family
ID=29062363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11298078U Expired JPS595200Y2 (en) | 1978-08-18 | 1978-08-18 | Pump suction vortex prevention device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS595200Y2 (en) |
-
1978
- 1978-08-18 JP JP11298078U patent/JPS595200Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5530914U (en) | 1980-02-28 |
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