FR2244149A1 - Helical static agitator for heat exchanger tube - has strip of material formed into helix with an O.D. less than tube I.D. - Google Patents

Helical static agitator for heat exchanger tube - has strip of material formed into helix with an O.D. less than tube I.D.

Info

Publication number
FR2244149A1
FR2244149A1 FR7333390A FR7333390A FR2244149A1 FR 2244149 A1 FR2244149 A1 FR 2244149A1 FR 7333390 A FR7333390 A FR 7333390A FR 7333390 A FR7333390 A FR 7333390A FR 2244149 A1 FR2244149 A1 FR 2244149A1
Authority
FR
France
Prior art keywords
tube
helix
heat exchanger
strip
less
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
FR7333390A
Other languages
French (fr)
Other versions
FR2244149B1 (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.)
Valeo SE
Original Assignee
Francaise du Ferodo 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 Francaise du Ferodo SA filed Critical Francaise du Ferodo SA
Priority to FR7333390A priority Critical patent/FR2244149A1/en
Publication of FR2244149A1 publication Critical patent/FR2244149A1/en
Application granted granted Critical
Publication of FR2244149B1 publication Critical patent/FR2244149B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

A static agitator for small flows through a heat exchanger tube, consists of a helical strip of material supported by an elongated central core running along the inside of the tube, so as to leave a gap of a few tenths of a millimetre between the periphery of the helix and the inside of the tube. For a 10 m/m I/D tube, the pitch of the helix is between 20 mm and 50 mm and the radial clearance is between 1.5 and 0.75 mm. For a 7.3 mm I/D tube the pitch is 28 mm and the diameter of the helix is between 6 and 7mm, preferably 6.5mm. Further measurements are given. The agitator may be of plastics material with a flattened end.
FR7333390A 1973-09-18 1973-09-18 Helical static agitator for heat exchanger tube - has strip of material formed into helix with an O.D. less than tube I.D. Granted FR2244149A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7333390A FR2244149A1 (en) 1973-09-18 1973-09-18 Helical static agitator for heat exchanger tube - has strip of material formed into helix with an O.D. less than tube I.D.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7333390A FR2244149A1 (en) 1973-09-18 1973-09-18 Helical static agitator for heat exchanger tube - has strip of material formed into helix with an O.D. less than tube I.D.

Publications (2)

Publication Number Publication Date
FR2244149A1 true FR2244149A1 (en) 1975-04-11
FR2244149B1 FR2244149B1 (en) 1976-10-01

Family

ID=9125178

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7333390A Granted FR2244149A1 (en) 1973-09-18 1973-09-18 Helical static agitator for heat exchanger tube - has strip of material formed into helix with an O.D. less than tube I.D.

Country Status (1)

Country Link
FR (1) FR2244149A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2295394A2 (en) * 1974-12-17 1976-07-16 Sueddeutsche Kuehler Behr Helical turbulence insert for heat-exchanger tubes - has reinforcement preformed into strip material before twisting operation
FR2436959A1 (en) * 1978-09-19 1980-04-18 Ferodo Sa Helical insert for heat exchanger tubes - has S=shaped cross=section with reinforced core to create turbulent flow
DE3018978A1 (en) * 1979-05-25 1980-11-27 Ferodo Sa SWIRL IMPACTOR
EP0072996A1 (en) * 1981-08-19 1983-03-02 Mihama Manufacturing Co., Ltd. Plastic turbulence inducing member
FR2528562A1 (en) * 1982-06-14 1983-12-16 Valeo TURBULATOR FOR A HEAT EXCHANGER WITH TUBE BEAM AND EXCHANGER COMPRISING SUCH TURBULATORS
FR2536162A1 (en) * 1982-11-15 1984-05-18 Valeo Device to encourage turbulent flow of a fluid in a pipe, the method of installing it and a heat exchanger using the device
EP0174254A1 (en) * 1984-08-31 1986-03-12 Compagnie De Raffinage Et De Distribution Total France Mechanical device to improve the transfer of heat and to prevent clogging of heat exchangers
US4700749A (en) * 1978-11-24 1987-10-20 Societe Anonyme Francaise Du Ferodo Swirl-generating, helical agitator for heat exchanger tubes
EP0282148A2 (en) * 1987-01-21 1988-09-14 TRW United-Carr Ltd. Vehicle radiator turbulator

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2295394A2 (en) * 1974-12-17 1976-07-16 Sueddeutsche Kuehler Behr Helical turbulence insert for heat-exchanger tubes - has reinforcement preformed into strip material before twisting operation
FR2436959A1 (en) * 1978-09-19 1980-04-18 Ferodo Sa Helical insert for heat exchanger tubes - has S=shaped cross=section with reinforced core to create turbulent flow
US4700749A (en) * 1978-11-24 1987-10-20 Societe Anonyme Francaise Du Ferodo Swirl-generating, helical agitator for heat exchanger tubes
DE3018978A1 (en) * 1979-05-25 1980-11-27 Ferodo Sa SWIRL IMPACTOR
US4534409A (en) * 1979-05-25 1985-08-13 Societe Anonyme Francaise Du Ferodo Tubular heat exchanger and helical agitators for use with such exchangers
EP0072996A1 (en) * 1981-08-19 1983-03-02 Mihama Manufacturing Co., Ltd. Plastic turbulence inducing member
FR2528562A1 (en) * 1982-06-14 1983-12-16 Valeo TURBULATOR FOR A HEAT EXCHANGER WITH TUBE BEAM AND EXCHANGER COMPRISING SUCH TURBULATORS
FR2536162A1 (en) * 1982-11-15 1984-05-18 Valeo Device to encourage turbulent flow of a fluid in a pipe, the method of installing it and a heat exchanger using the device
EP0174254A1 (en) * 1984-08-31 1986-03-12 Compagnie De Raffinage Et De Distribution Total France Mechanical device to improve the transfer of heat and to prevent clogging of heat exchangers
EP0282148A2 (en) * 1987-01-21 1988-09-14 TRW United-Carr Ltd. Vehicle radiator turbulator
EP0282148A3 (en) * 1987-01-21 1988-10-26 TRW United-Carr Ltd. Vehicle radiator turbulator

Also Published As

Publication number Publication date
FR2244149B1 (en) 1976-10-01

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Legal Events

Date Code Title Description
ST Notification of lapse