JPS6182083U

JPS6182083U -

Info

Publication number: JPS6182083U
Application number: JP16567484U
Authority: JP
Priority date: 1984-11-02
Filing date: 1984-11-02
Publication date: 1986-05-30

Description

[Brief explanation of the drawing]

第１図は、この考案の実施例を示す要部の縦断
側面図、第２図は、同じくボリユートポンプの要
部の縦断側面図、第３ａ図は、従来のスクリユー
スピンドル式ホロージエツトバルブの縦断側面図
、第３ｂ図は、前図のＸ−Ｘ矢視図、第３ｃ図は
、従来の油圧式ホロージエツトバルブの縦断側面
図、第３ｄ図は、前図のＹ−Ｙ矢視図、第４ａ図
は、従来のフイツクスドコーンバルブの要部を断
面であらわした側面図、第４ｂ図は、前図のＺ−
Ｚ矢視図である。１…ボリユートポンプ、２…ポンプケーシング
、３…上カバー、４…吸入口、５…回転主軸、６
…羽根車、７…軸受、８…放流弁本体、９…開口
部、１０…案内筒、１１…案内筒下端部、１２…
円錐状頭部、１３…放流弁体、１４…弁軸部、１
９…案内羽根部、２０…滑金片。 Fig. 1 is a longitudinal side view of the main parts showing an embodiment of this invention, Fig. 2 is a longitudinal side view of the main parts of a volute pump, and Fig. 3a is a conventional screw spindle type hollow jet. A longitudinal side view of the valve, Fig. 3b is a view taken along the line X-X in the previous figure, Fig. 3c is a longitudinal side view of a conventional hydraulic hollow jet valve, and Fig. 3d is a view taken along the line Y-Y in the previous figure. The arrow view, FIG. 4a is a side view showing the main part of a conventional fixed cone valve in cross section, and FIG. 4b is a Z--
It is a Z arrow view. 1... Volute pump, 2... Pump casing, 3... Upper cover, 4... Suction port, 5... Rotating main shaft, 6
... Impeller, 7... Bearing, 8... Discharge valve body, 9... Opening, 10... Guide tube, 11... Guide tube lower end, 12...
Conical head, 13... Discharge valve body, 14... Valve stem, 1
9... Guide vane portion, 20... Slipper piece.

Claims

[Scope of utility model registration request]

Remove the impeller, upper cover, bearing, and main shaft from pumps other than pumps used for testing such as pumps for sewage treatment plants or pumps for irrigation water relay pump stations, and seal the discharge valve body in the pump casing of that part. At the same time, a conical valve body with a guide vane that protrudes from the pump suction side of the casing and that can freely come into contact with and separate from the lower end of a guide cylinder with multiple openings is attached from the outside up and down. An energy reducing device for a fluid machine, characterized in that it is movably disposed.