JPS57150799A - Heat transfer tube with internal grooves - Google Patents

Heat transfer tube with internal grooves

Info

Publication number
JPS57150799A
JPS57150799A JP3500281A JP3500281A JPS57150799A JP S57150799 A JPS57150799 A JP S57150799A JP 3500281 A JP3500281 A JP 3500281A JP 3500281 A JP3500281 A JP 3500281A JP S57150799 A JPS57150799 A JP S57150799A
Authority
JP
Japan
Prior art keywords
heat transfer
transfer tube
grooves
tube
spiral grooves
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
JP3500281A
Other languages
Japanese (ja)
Inventor
Seiji Tojo
Hiroyuki Yamada
Katsuumi Hosokawa
Toru Arimoto
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP3500281A priority Critical patent/JPS57150799A/en
Publication of JPS57150799A publication Critical patent/JPS57150799A/en
Pending 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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

PURPOSE:To improve evaporating, condensing and heat transmitting performance of a heat transfer tube without increasing the pressure loss, by forming many spiral grooves in the inner wall surface of the heat transfer tube, and selecting the opposite lead angles of two groups of spiral grooves intersecting to each other to the axis of the heat transfer tube, and the depth and pitches of the grooves respectively at specific values within a limited range. CONSTITUTION:A heat transfer tube a is formed in its inner surface with many spiral grooves b1, b2 for exchanging heat between a coolant passed through the inside of the tube a and a fluid passed through the outside of the tube a by evaporating and condensing the coolant. The two groups of spiral grooves b1, b2 are formed to intersect to each other. Here, arrangtement is such that the opposite lead angles alpha1, alpha2 of the two groups of spiral grooves to the axis A of the tube a are selected to be within the range of 5-45 degrees, and the depth of the grooves b1, b2 is selected within the ranfe of 0.05-0.75mm.. Futher, the pitches p1, p2 of the grooves b1, b2 are selected to be 0.2-1.0mm..
JP3500281A 1981-03-11 1981-03-11 Heat transfer tube with internal grooves Pending JPS57150799A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3500281A JPS57150799A (en) 1981-03-11 1981-03-11 Heat transfer tube with internal grooves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3500281A JPS57150799A (en) 1981-03-11 1981-03-11 Heat transfer tube with internal grooves

Publications (1)

Publication Number Publication Date
JPS57150799A true JPS57150799A (en) 1982-09-17

Family

ID=12429897

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3500281A Pending JPS57150799A (en) 1981-03-11 1981-03-11 Heat transfer tube with internal grooves

Country Status (1)

Country Link
JP (1) JPS57150799A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0148609A2 (en) * 1983-12-28 1985-07-17 Hitachi Cable, Ltd. Heat-transfer tubes with grooved inner surface
US4660630A (en) * 1985-06-12 1987-04-28 Wolverine Tube, Inc. Heat transfer tube having internal ridges, and method of making same
US5052476A (en) * 1990-02-13 1991-10-01 501 Mitsubishi Shindoh Co., Ltd. Heat transfer tubes and method for manufacturing
JPH0842987A (en) * 1994-07-11 1996-02-16 Carrier Corp Heat exchanger tube
US6026892A (en) * 1996-09-13 2000-02-22 Poongsan Corporation Heat transfer tube with cross-grooved inner surface and manufacturing method thereof
RU2759309C1 (en) * 2021-02-25 2021-11-11 Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" Heat exchange element, method for its manufacture and device for its implementation

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0148609A2 (en) * 1983-12-28 1985-07-17 Hitachi Cable, Ltd. Heat-transfer tubes with grooved inner surface
US4658892A (en) * 1983-12-28 1987-04-21 Hitachi Cable, Ltd. Heat-transfer tubes with grooved inner surface
US4660630A (en) * 1985-06-12 1987-04-28 Wolverine Tube, Inc. Heat transfer tube having internal ridges, and method of making same
US5052476A (en) * 1990-02-13 1991-10-01 501 Mitsubishi Shindoh Co., Ltd. Heat transfer tubes and method for manufacturing
JPH0842987A (en) * 1994-07-11 1996-02-16 Carrier Corp Heat exchanger tube
US6026892A (en) * 1996-09-13 2000-02-22 Poongsan Corporation Heat transfer tube with cross-grooved inner surface and manufacturing method thereof
RU2759309C1 (en) * 2021-02-25 2021-11-11 Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" Heat exchange element, method for its manufacture and device for its implementation

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