JPS61200469U

JPS61200469U -

Info

Publication number: JPS61200469U
Application number: JP1985083790U
Authority: JP
Priority date: 1985-06-03
Filing date: 1985-06-03
Publication date: 1986-12-15

Description

[Brief explanation of the drawing]

第１図はこの考案によるバルブ水車の吸出し管
の実施例を示す側面図、第２図は第１図の吸出し
管２重構造部分の側面断面図、第３図は同上部分
の斜視図、第４図はこの考案の他の実施例による
バルブ水車の吸出し管を示す側面図、第５図は第
４図の平面図である。１；バルブ水車、６；第１の吸出し管、７；第
２の吸出し管、９；連結リブ、１０；給水管、Ｓ
；スロツト。 Fig. 1 is a side view showing an embodiment of the suction pipe of a valve water turbine according to this invention, Fig. 2 is a side cross-sectional view of the double structure portion of the suction pipe in Fig. 1, and Fig. 3 is a perspective view of the same portion. FIG. 4 is a side view showing a suction pipe of a valve water turbine according to another embodiment of the invention, and FIG. 5 is a plan view of FIG. 4. 1; Valve water turbine, 6; First suction pipe, 7; Second suction pipe, 9; Connecting rib, 10; Water supply pipe, S
;Slot.

Claims

[Scope of Claim for Utility Model Registration] (1) In a truncated cone-shaped or quadrangular truncated pyramid-shaped suction pipe of a valve water wheel placed in still water, a slot is provided around the entire circumference near the entrance of the suction pipe,
A suction pipe for a valve water turbine, characterized in that a water flow is blown into the suction pipe from this slot. (2) In the suction pipe according to claim 1 of the utility model registration claim; the suction pipe has a double structure, and the gap between the first suction pipe and the second suction pipe is formed as an annular slot. A suction pipe for a valve water turbine, characterized in that it performs natural blowing without external power due to the pressure difference between inside and outside. (3) In the suction pipe described in claim 2 of the utility model registration; a plurality of ribs connecting the first suction pipe and the second suction pipe are arranged so as to be inclined in the same direction as the rotation of the water turbine runner. A valve water turbine suction pipe characterized by the following. (4) The suction pipe according to claim 2 of the utility model registration claim is characterized in that a water supply pipe leading to the dam is provided in the annular slot, and water from the dam is blown out from the annular slot through the water supply pipe. Valve water turbine suction pipe.