JPS5887998U - Centrifugal pump backflow prevention device - Google Patents

Centrifugal pump backflow prevention device

Info

Publication number
JPS5887998U
JPS5887998U JP1981182973U JP18297381U JPS5887998U JP S5887998 U JPS5887998 U JP S5887998U JP 1981182973 U JP1981182973 U JP 1981182973U JP 18297381 U JP18297381 U JP 18297381U JP S5887998 U JPS5887998 U JP S5887998U
Authority
JP
Japan
Prior art keywords
ring
impeller
mouth ring
prevention device
centrifugal pump
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
Application number
JP1981182973U
Other languages
Japanese (ja)
Inventor
遠藤　政敏
Original Assignee
石川島播磨重工業株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 石川島播磨重工業株式会社 filed Critical 石川島播磨重工業株式会社
Priority to JP1981182973U priority Critical patent/JPS5887998U/en
Publication of JPS5887998U publication Critical patent/JPS5887998U/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
    • F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の遠心ポンプの一部を示した断面図、第２
図は第１図のＡの部分を拡大して示した断面図、第３図
は本考案の一実施例を示した断面図である。 １・・・・・・羽根車、２・・・・・・羽根車リング、
３・・・・・・マウスリング、４・・・・・・雄ねじ部
材、５・・・・・・ナツト、６・・・・・・吸込みカバ
ー、７・・・・・・スプリング、８・・・・・・シーリ
ング水孔、９・・・・・・シーリング水路、１０・・・
・・・シーリング氷室。Figure 1 is a cross-sectional view of a part of a conventional centrifugal pump;
The figure is an enlarged cross-sectional view of part A in FIG. 1, and FIG. 3 is a cross-sectional view showing an embodiment of the present invention. 1... impeller, 2... impeller ring,
3...Mouse ring, 4...Male thread member, 5...Nut, 6...Suction cover, 7...Spring, 8... ...Sealing water hole, 9...Sealing waterway, 10...
...Ceiling icehouse.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 羽根車に固着されている羽根車リングとの間に隙間を有
して吸込みカバーに支持されているマウスリングを備え
、かつ、外部からシーリング水を前記両リングの間に供
給してシールするようにした遠心ポンプにおいて、前記
マウスリングは該羽根車リングに対して接近離隔する方
向に位置調整可能にねじ部材によってフローティング状
に支持されているとともに、該マウスリングと前記吸込
みカバーの内面との間には、前記羽根車リングが該マウ
スリングに回転接触した場合に圧縮されるスプリングを
備え、しかも、該マウスリングには、前記シーリング水
を該羽根車リングとの摺動面に給水するシーリング水孔
を備えてなる、遠心ポンプの逆流防止装置。The mouth ring is supported by the suction cover with a gap between the mouth ring and the impeller ring fixed to the impeller, and sealing water is supplied from the outside between the two rings to form a seal. In the centrifugal pump, the mouth ring is supported in a floating manner by a screw member so that its position can be adjusted in a direction toward and away from the impeller ring, and there is a gap between the mouth ring and the inner surface of the suction cover. The mouth ring includes a spring that is compressed when the impeller ring comes into rotational contact with the mouth ring, and the mouth ring includes a sealing water for supplying the sealing water to a sliding surface with the impeller ring. A backflow prevention device for centrifugal pumps equipped with holes.
JP1981182973U 1981-12-10 1981-12-10 Centrifugal pump backflow prevention device Pending JPS5887998U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1981182973U JPS5887998U (en) 1981-12-10 1981-12-10 Centrifugal pump backflow prevention device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981182973U JPS5887998U (en) 1981-12-10 1981-12-10 Centrifugal pump backflow prevention device

Publications (1)

Publication Number Publication Date
JPS5887998U true JPS5887998U (en) 1983-06-15

Family

ID=29981819

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981182973U Pending JPS5887998U (en) 1981-12-10 1981-12-10 Centrifugal pump backflow prevention device

Country Status (1)

Country Link
JP (1) JPS5887998U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202200026505A1 (en) * 2022-12-22 2024-06-22 Caprari Spa CENTRIFUGAL PUMP

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202200026505A1 (en) * 2022-12-22 2024-06-22 Caprari Spa CENTRIFUGAL PUMP

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