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42. 发明专利

JPS6464515A PENETRATING METHOD FOR WIRE AND CABLE 失效
公开(公告)号：JPS6464515A
公开(公告)日：1989-03-10
申请号：JP21963187
申请日：1987-09-02
申请人： SUMITOMO COAL MINING , HORII KYOYUKI
发明人： HORII KIYOYUKI , MATSUI SHIGERU , MIZUNO JIRO
IPC分类号： H02G1/08
摘要： PURPOSE:To pass wire or cable efficiently through a long conduit without causing damage, by producing Coanda spiral flow at the outlet or in the way of the conduit. CONSTITUTION:A main tube 2 is connected to the outlet endface of a conduit 1 while a sub-tube 3 faces with the main tube 2, and annular thin gaps are formed in order to feed pressurized fluid between them. Interval of the thin gap 4 can be regulated in order to control pressure and flow of the fluid. When air is employed as the fluid, inclination angle theta of the sub-tube is preferably in the range of 1/4-1/8 and the ratio of inner diameters between the conduit 1 and the sub-tube 3 is in the range of 1/2-1/5. Consequently, air flow in the conduit increases toward the tube 2 and further increases at the outlet of the sub-tube 3. Wire or cable 7 is sucked and carried through the conduit 1 by means of negative suction force.

44. 发明专利

JPS6366017A AIR TRANSPORTING METHOD 失效
公开(公告)号：JPS6366017A
公开(公告)日：1988-03-24
申请号：JP20741286
申请日：1986-09-03
申请人： HORII KYOYUKI , SUMITOMO COAL MINING
发明人： HORII KIYOYUKI , MATSUI SHIGERU
IPC分类号： B65G53/04
摘要： PURPOSE:To effectively feed and exhaust air to and from an internal space in a gallery, a tunnel, etc., by a method wherein, by the Coanda spiral flow produced by the high speed feed-in of pressurized air, the feed and/or exhaust of air is effected. CONSTITUTION:A cylinder pipe 2, having a shape gradually spread toward the end is connected as a device, adapted to produce a Coanda spiral flow, to the end surface of a conveyance piping 1, and an annular slit 3 through which to feed in pressurized air from a lateral direction is formed in the cylinder pipe 2. A smoothly curved wall surface 4 is formed from the slit 3 toward a line 1, and an auxiliary cylinder 6 having an air introduction port 5 is connected to the side reverse to the wall surface 4. A distributing chamber 8 is situated in a manner to surround the cylinder pipe 2, and pressurized air introduced to the distributing chamber 8 is uniformly fed through the slit 3 to the interior of the cylinder pipe 2. This constitution enables a negative pressure area to be formed on the side reverse to a stream line (a) formed on the outlet side of the slit 3, and inflow of external air.

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