Title:
VARIABLE-CIRCUMFERENCE TUBULAR BODY
Document Type and Number:
WIPO Patent Application WO/2012/001759
Kind Code:
A1
Abstract:
Disclosed is a heat exchange tube or catalytic reaction tube capable of highly efficient heat exchange and catalytic reaction by enlarging the surface area of the inner circumferential surface of a tubular body while saving the amount of the constituent material of a tubular body and a required occupied volume and shortening a time required for heat exchange without elongating a heat exchange distance.
Specifically disclosed is a variable-circumference tubular body (1) which is so formed as to differentiate the circumferential lengths at two or more different positions along the axial direction from each other while the cross-sectional areas of the internal space surrounded by the inner circumferences of the cross sections orthogonal to the axial direction at any optional positions in the axial direction are almost equal. Almost without compressing the fluid flowing inside the variable-circumference tubular body, the number of the molecules of the fluid that come into contact with the inner circumferential surface can be increased.
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Inventors:
MICHIWAKI HIROSHI (JP)
Application Number:
PCT/JP2010/060981
Publication Date:
January 05, 2012
Filing Date:
June 28, 2010
Export Citation:
Assignee:
MICHIWAKI HIROSHI (JP)
International Classes:
F28F1/02; F28F1/08; F28F13/08
Foreign References:
| JPH11173782A | 1999-07-02 | |||
| JP2008051375A | 2008-03-06 | |||
| JP2002350081A | 2002-12-04 | |||
| JP3192622B2 | 2001-07-30 | |||
| JPS57190282U | 1982-12-02 |
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Claims:
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