JPS5478557A - Grooved pipe - Google Patents

Grooved pipe

Info

Publication number
JPS5478557A
JPS5478557A JP14515677A JP14515677A JPS5478557A JP S5478557 A JPS5478557 A JP S5478557A JP 14515677 A JP14515677 A JP 14515677A JP 14515677 A JP14515677 A JP 14515677A JP S5478557 A JPS5478557 A JP S5478557A
Authority
JP
Japan
Prior art keywords
grooves
metal plate
crests
grooved
depth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14515677A
Other languages
Japanese (ja)
Inventor
Akio Mitani
Moriyoshi Sakamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14515677A priority Critical patent/JPS5478557A/en
Publication of JPS5478557A publication Critical patent/JPS5478557A/en
Pending legal-status Critical Current

Links

Landscapes

  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

PURPOSE: To improve the condensation heat transfer of steam of high surface tension, by grooving a metal plate and making a grooved pipe from the grooved plate to place the grooves outside and setting the ratio of the depth of the grooves to the distance between the crests within a specific range.
CONSTITUTION: The metal plate is rolled between a grooving roll and a flat surface roll, thereby grooving one side 2 of the metal plate. The metal plate is made tubular so that the grooved side 2 is placed outside. Both the side edges of the metal plate are welded to each other. Thereby, the grooved pipe 1 is produced. The rotio V/P of the depth V of the grooves 2b to the distance P between the crests 2a adjacent to the grooves is set at 0.45 or more. The crests are rounded to a radius r of curvature to remove liquid film from the crests by the surface tension. The depth of the grooves is so increased that condensed liquid flows down well without overflowing.
COPYRIGHT: (C)1979,JPO&Japio
JP14515677A 1977-12-05 1977-12-05 Grooved pipe Pending JPS5478557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14515677A JPS5478557A (en) 1977-12-05 1977-12-05 Grooved pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14515677A JPS5478557A (en) 1977-12-05 1977-12-05 Grooved pipe

Publications (1)

Publication Number Publication Date
JPS5478557A true JPS5478557A (en) 1979-06-22

Family

ID=15378711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14515677A Pending JPS5478557A (en) 1977-12-05 1977-12-05 Grooved pipe

Country Status (1)

Country Link
JP (1) JPS5478557A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015094502A (en) * 2013-11-11 2015-05-18 株式会社 テスク資材販売 Radiator and air conditioning system using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015094502A (en) * 2013-11-11 2015-05-18 株式会社 テスク資材販売 Radiator and air conditioning system using the same

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