FR2235344A1 - Heat exchanger tube turbulence insert - is made from flat strip incised along its edges and twisted - Google Patents

Heat exchanger tube turbulence insert - is made from flat strip incised along its edges and twisted

Info

Publication number
FR2235344A1
FR2235344A1 FR7323294A FR7323294A FR2235344A1 FR 2235344 A1 FR2235344 A1 FR 2235344A1 FR 7323294 A FR7323294 A FR 7323294A FR 7323294 A FR7323294 A FR 7323294A FR 2235344 A1 FR2235344 A1 FR 2235344A1
Authority
FR
France
Prior art keywords
twisted
heat exchanger
edges
strip
exchanger tube
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.)
Granted
Application number
FR7323294A
Other languages
French (fr)
Other versions
FR2235344B1 (en
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.)
Air Industrie SA
Original Assignee
Air Industrie SA
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 Air Industrie SA filed Critical Air Industrie SA
Priority to FR7323294A priority Critical patent/FR2235344A1/en
Publication of FR2235344A1 publication Critical patent/FR2235344A1/en
Application granted granted Critical
Publication of FR2235344B1 publication Critical patent/FR2235344B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation

Abstract

A helical insert (3) to be introduced inside heat exchanger tubes to cause turbulence of the heating medium as it passes through the tube, is made from metal strip in which incisions are made along one edge, then another set is made along one opposite edge staggered from the first. Their depth is between a third and a sixth of the width of the strip. The strip is then twisted to form the helix, and a set of flanges (A, B) is formed, bent along the connecting lines (8) between the bottoms of the incisions, these flanges being five sided, three sides being the rectangular edges of the incisions and the strip itself (5, 6, 7), the other two being the bend lines (8).
FR7323294A 1973-06-26 1973-06-26 Heat exchanger tube turbulence insert - is made from flat strip incised along its edges and twisted Granted FR2235344A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7323294A FR2235344A1 (en) 1973-06-26 1973-06-26 Heat exchanger tube turbulence insert - is made from flat strip incised along its edges and twisted

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7323294A FR2235344A1 (en) 1973-06-26 1973-06-26 Heat exchanger tube turbulence insert - is made from flat strip incised along its edges and twisted

Publications (2)

Publication Number Publication Date
FR2235344A1 true FR2235344A1 (en) 1975-01-24
FR2235344B1 FR2235344B1 (en) 1976-05-28

Family

ID=9121574

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7323294A Granted FR2235344A1 (en) 1973-06-26 1973-06-26 Heat exchanger tube turbulence insert - is made from flat strip incised along its edges and twisted

Country Status (1)

Country Link
FR (1) FR2235344A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823865A (en) * 1988-02-18 1989-04-25 A. O. Smith Corporation Turbulator construction for a heat exchanger
US10632669B2 (en) * 2016-12-07 2020-04-28 Kasei Kogyo, Co., Ltd. Helical layer structure and manufacturing method of helical layer structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1961744A (en) * 1931-08-22 1934-06-05 Staley Mfg Co A E Heat transfer with viscous liquids

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1961744A (en) * 1931-08-22 1934-06-05 Staley Mfg Co A E Heat transfer with viscous liquids

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823865A (en) * 1988-02-18 1989-04-25 A. O. Smith Corporation Turbulator construction for a heat exchanger
EP0329448A1 (en) * 1988-02-18 1989-08-23 Aos Holding Company Turbulator construction for a heat exchanger
US10632669B2 (en) * 2016-12-07 2020-04-28 Kasei Kogyo, Co., Ltd. Helical layer structure and manufacturing method of helical layer structure

Also Published As

Publication number Publication date
FR2235344B1 (en) 1976-05-28

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Legal Events

Date Code Title Description
ST Notification of lapse