A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To suppress generation of cavitation by low-cost means without increasing in a size of a device, in a sleeve valve.SOLUTION: A sleeve valve comprises: a valve box 11 with both ends open; an inflow pipe 1 and an outflow pipe 2 connected to the valve box 11; a cylinder 12 that is arranged in the valve box 11, and whose side of the inflow pipe 1 is closed; and a sleeve valve element 13 that is housed in the cylinder 12 and is movable relative to a cylinder axis direction. When a valve element valve seat 14b provided on the valve body 11 and a valve element valve seat 14a provided on the sleeve valve element 13 contact/separate from each other, the sleeve valve opens/closes a gap 6 between an end part 12c of the cylinder 12 on the outflow pipe 2 side and the valve element valve seat 14b. A flow path 4 on a downstream side of the valve element valve seat 14b is provided with a flow path protrusion 31 that protrudes from an inner surface 4a of the flow path 4 toward an axial core p side of the flow path 4.SELECTED DRAWING: Figure 1
【課題】スリーブ弁において、装置を大型化することなく、低コストな手段でキャビテーションの発生を抑制する。【解決手段】両端が開口した弁箱１１と、弁箱１１に接続される流入配管１及び流出配管２と、弁箱１１内に配置され流入配管１側が閉塞されたシリンダ１２と、シリンダ１２内に収容され筒軸方向に沿って相対移動可能なスリーブ弁体１３と、を備え、弁箱１１に設けられた弁箱弁座１４ｂとスリーブ弁体１３に設けられた弁体弁座１４ａとが接離することにより、シリンダ１２の流出配管２側の端部１２ｃと弁箱弁座１４ｂとの間の間隙６を開閉するスリーブ弁において、弁箱弁座１４ｂの下流側の流路４に、流路４の内面４ａから流路４の軸心ｐ側に向かって突出する流路突起３１を備えたスリーブ弁とした。【選択図】図１
To suppress generation of cavitation by low-cost means without increasing in a size of a device, in a sleeve valve.SOLUTION: A sleeve valve comprises: a valve box 11 with both ends open; an inflow pipe 1 and an outflow pipe 2 connected to the valve box 11; a cylinder 12 that is arranged in the valve box 11, and whose side of the inflow pipe 1 is closed; and a sleeve valve element 13 that is housed in the cylinder 12 and is movable relative to a cylinder axis direction. When a valve element valve seat 14b provided on the valve body 11 and a valve element valve seat 14a provided on the sleeve valve element 13 contact/separate from each other, the sleeve valve opens/closes a gap 6 between an end part 12c of the cylinder 12 on the outflow pipe 2 side and the valve element valve seat 14b. A flow path 4 on a downstream side of the valve element valve seat 14b is provided with a flow path protrusion 31 that protrudes from an inner surface 4a of the flow path 4 toward an axial core p side of the flow path 4.SELECTED DRAWING: Figure 1
【課題】スリーブ弁において、装置を大型化することなく、低コストな手段でキャビテーションの発生を抑制する。【解決手段】両端が開口した弁箱１１と、弁箱１１に接続される流入配管１及び流出配管２と、弁箱１１内に配置され流入配管１側が閉塞されたシリンダ１２と、シリンダ１２内に収容され筒軸方向に沿って相対移動可能なスリーブ弁体１３と、を備え、弁箱１１に設けられた弁箱弁座１４ｂとスリーブ弁体１３に設けられた弁体弁座１４ａとが接離することにより、シリンダ１２の流出配管２側の端部１２ｃと弁箱弁座１４ｂとの間の間隙６を開閉するスリーブ弁において、弁箱弁座１４ｂの下流側の流路４に、流路４の内面４ａから流路４の軸心ｐ側に向かって突出する流路突起３１を備えたスリーブ弁とした。【選択図】図１
SLEEVE VALVE
スリーブ弁
MATSUBARA KEISUKE (author)
2023-10-13
Patent
Electronic Resource
Japanese