JPS572995A - Multitube type heat exchanger - Google Patents

Multitube type heat exchanger

Info

Publication number
JPS572995A
JPS572995A JP7547480A JP7547480A JPS572995A JP S572995 A JPS572995 A JP S572995A JP 7547480 A JP7547480 A JP 7547480A JP 7547480 A JP7547480 A JP 7547480A JP S572995 A JPS572995 A JP S572995A
Authority
JP
Japan
Prior art keywords
heat pipe
tube plate
water
zone
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.)
Pending
Application number
JP7547480A
Other languages
Japanese (ja)
Inventor
Hiroshi Itagaki
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 JP7547480A priority Critical patent/JPS572995A/en
Publication of JPS572995A publication Critical patent/JPS572995A/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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding
    • F28F2275/067—Fastening; Joining by welding by laser welding

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Laser Beam Processing (AREA)

Abstract

PURPOSE:To prevent a corrosion of a heat pipe mounting part in the feed water heating device for a steam turbine plant and the like, by providing a bell mouth- shaped port and water flow rectifying zone in a tube plate itself, and laser welding the inner diameter of the heat pipe with the hole diameter of the recifying zone in the tube plate. CONSTITUTION:In a water inlet part of the tube plate 4 is provided the bell mouth- shaped port 8. The hole diameter d1 of the feed water rectifying zone 4a and the inner diameter d2 are designed to be the same. The hole diameter d3 of a zone 4b into which the heat pipe 5 is inserted is designed to have the outer diameter d4 of the heat pipe 5. The heat pipe 5 is inserted into the tube plate 4 and then an orientation changing mirror 13 of a laser welding device 11 is inserted up to a junction part 5a, where a laser beam 14 is jetted. After that, the laser beam generator 11 is turned so as to turn a guide tube 12 and the orientation changing mirror 13, so that the tube plate 4 and the heat pipe 5 are welded at the junction part 5a. With such a construction, a rectified water can be supplied to the heat pipe 5 so that any inlet attack which is caused by a turbulent flow of water and which causes a corrosion of the tube can be effectively eliminated.
JP7547480A 1980-06-06 1980-06-06 Multitube type heat exchanger Pending JPS572995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7547480A JPS572995A (en) 1980-06-06 1980-06-06 Multitube type heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7547480A JPS572995A (en) 1980-06-06 1980-06-06 Multitube type heat exchanger

Publications (1)

Publication Number Publication Date
JPS572995A true JPS572995A (en) 1982-01-08

Family

ID=13577328

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7547480A Pending JPS572995A (en) 1980-06-06 1980-06-06 Multitube type heat exchanger

Country Status (1)

Country Link
JP (1) JPS572995A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5965205U (en) * 1982-10-21 1984-05-01 三菱重工業株式会社 Water supply inner pipe nozzle
JPS61192194U (en) * 1985-05-16 1986-11-29
WO2000043662A1 (en) * 1999-01-20 2000-07-27 Hino Motors, Ltd. Egr cooler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5965205U (en) * 1982-10-21 1984-05-01 三菱重工業株式会社 Water supply inner pipe nozzle
JPS61192194U (en) * 1985-05-16 1986-11-29
WO2000043662A1 (en) * 1999-01-20 2000-07-27 Hino Motors, Ltd. Egr cooler

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