Title:
渦流式防止剤分散ピグ
Document Type and Number:
Japanese Patent JP2011511235
Kind Code:
A
Abstract:
A pipeline pig—that moves by pressurized gas flow and provides for distribution of treating liquid subsisting in a lower portion of a pipeline—having a longitudinally extending nozzle located at a forward end of the pig, an array of helical-shaped louvers located on the discharge side of the nozzle and arranged circumferentially, and two perforated sealing elements that create a cavity that serves as a low pressure plenum. The louvers create a vortex effect and the perforated sealing elements allow vapor and liquid in front of the pig to be drawn into the cavity and discharged through the ports and back into the discharge of the nozzle. In this manner, liquid subsisting at a bottom portion of the pipeline is dispersed to achieve a complete 360° coating application of the interior cylindrical wall of the pipeline.
Inventors:
Pluto Rick Dee
Application Number:
JP2010545927A
Publication Date:
April 07, 2011
Filing Date:
January 21, 2009
Export Citation:
Assignee:
TDW Delaware Inc
International Classes:
F16L55/26
Domestic Patent References:
| JPS61103568A | 1986-05-22 | |||
| JP2004041972A | 2004-02-12 | |||
| JPH11253903A | 1999-09-21 | |||
| JPS589316B2 | 1983-02-19 | |||
| JPS5028651B1 | 1975-09-17 | |||
| JPS57122984A | 1982-07-31 | |||
| JPS5588876U | 1980-06-19 | |||
| JPS572155U | 1982-01-07 |
Foreign References:
| EP0745436A1 | 1996-12-04 | |||
| US20040200019A1 | 2004-10-14 | |||
| US3708819A | 1973-01-09 | |||
| US4425385A | 1984-01-10 | |||
| WO2007087833A1 | 2007-08-09 |
Attorney, Agent or Firm:
Mitsufumi Esaki
Blacksmith
Ryota Imamura
Kiyota Eisho
Blacksmith
Ryota Imamura
Kiyota Eisho