SUCTION PIPE

• Main Author: TAWARA YOSHIO
• Format: Patent
• Language: English
• Published: 01.03.1991
• Subjects: BLASTING; CONVEYING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HANDLING THIN OR FILAMENTARY MATERIAL; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PACKING; PERFORMING OPERATIONS; PIPES; PNEUMATIC TUBE CONVEYORS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; SHOP CONVEYOR SYSTEMS; STORING; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING; TRANSPORTING; WEAPONS

PURPOSE:To prevent adhesion of a foreign matter, e.g. dust, mixed in fluid to the inner wall of a pipe by a method wherein a suction port formed such that the one peripheral end is protruded externally of the other peripheral end is formed at least in a part of the side of a pipe, and fluid is caused to spirally flow through the central part of the interior of the pipe. CONSTITUTION:Fluid is caused to flow in a pipe 1 through a tip opening 2 and a suction port 3 from an axial direction A and a peripheral direction B of the suction pipe 1. Fluid after confluence forms a spiral flow, running from the inner wall of the pipe 1 toward the center of a pipe, through the hydrodynamic action of fluid, and the fluid finally forming a spiral flow passing through the central part of the interior of the pipe 1 flows toward the base end side. Therefore, even when dust is mixed in fluid, the dust is prevented from adhesion to the inner wall of the pipe 1.