US1709745A - Economizer tube - Google Patents

Economizer tube Download PDF

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Publication number
US1709745A
US1709745A US213067A US21306727A US1709745A US 1709745 A US1709745 A US 1709745A US 213067 A US213067 A US 213067A US 21306727 A US21306727 A US 21306727A US 1709745 A US1709745 A US 1709745A
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United States
Prior art keywords
tube
ribs
economizer tube
straight
economizer
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.)
Expired - Lifetime
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US213067A
Inventor
Schroers Willy
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Individual
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Individual
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Publication of US1709745A publication Critical patent/US1709745A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/26—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being integral with the element
    • 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
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means
    • Y10T29/49378—Finned tube

Definitions

  • said drawback is overcome by arranging the integral external disclike ribs, each being composed of two segments at right angles to the longitu# dinal axisv of the tube withL a space leftbetween them, and joining on each side of the tube the ends of theI segments of saidqribs alternately in a regular succession by means of straight inclined walls which are also .in-
  • the economizer tube a is cast in one with its external disclike ribs7 each being composed of two segments b, 0, which are arranged at right angles to the longitudinal axis of the tube with space left between them, while on each side of the tube the enisof the segments of said ribs are joined alternately in a regular: succession by means of straight lnclined walls d, e which are also cast in one with they tube and with said ribs, in such a way that a single or double" continuous fin is ,formed around the tube, for the purpose explained.
  • a main advantage of the invention is that the moulding and casting in one of the tube with ⁇ the straight i disclike ribs and their straight joiningwalls can be effected in a very easy manner.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Prostheses (AREA)

Description

Ap 16, 1929. w. scHRE'Rs ECONOII ZER TUBE Filed Aug'. 15, 1927 Patented Apr. 16, 1929.
WILLY soHRoERs, on KREFELD, GERMANY, 'ASSIGNOB To JOHANNES F KREFELD, GERMANY.
EGONOMIZER TUBE.
KLEINEWEFERS,
Application lled August 15, 1 927, Serial No. 2713,06?, and in Germany February 3, 1927.
The ordinary economizer tubes having a smooth inner surface and cast of one piece with integral external disclike ribs, are liable to easily break between said ribs due to 'the 5 high internal pressure existing in the tubes.
According to the invention, said drawback is overcome by arranging the integral external disclike ribs, each being composed of two segments at right angles to the longitu# dinal axisv of the tube withL a space leftbetween them, and joining on each side of the tube the ends of theI segments of saidqribs alternately in a regular succession by means of straight inclined walls which are also .in-
teg-ral with the tube and- Wi'th said ribs. Thereby, a single or double continuous fin is 4formed around the tube, whichstrengthens`- the latter on its whole length and reliably prevents a breaking thereof. y The accompanying drawing shows by way of example a preferred constructional form of the improved economizer tube; Figs. l and 2 are respectively a side v iew andan end view thereof. i
l The economizer tube a is cast in one with its external disclike ribs7 each being composed of two segments b, 0, which are arranged at right angles to the longitudinal axis of the tube with space left between them, while on each side of the tube the enisof the segments of said ribs are joined alternately in a regular: succession by means of straight lnclined walls d, e which are also cast in one with they tube and with said ribs, in such a way that a single or double" continuous fin is ,formed around the tube, for the purpose explained.
A main advantage of the invention is that the moulding and casting in one of the tube with` the straight i disclike ribs and their straight joiningwalls can be effected in a very easy manner.
` What I claim, is :#2 An integral rlbbed econonuzer tube having x L a smooth lnner straight external surface and comprising dlsehke rlbs, each being with the tube.
In testimony whereof I have hereunto set my hand.
WILLY scHRoERs.
US213067A 1927-02-03 1927-08-15 Economizer tube Expired - Lifetime US1709745A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1709745X 1927-02-03

Publications (1)

Publication Number Publication Date
US1709745A true US1709745A (en) 1929-04-16

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Family Applications (1)

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US213067A Expired - Lifetime US1709745A (en) 1927-02-03 1927-08-15 Economizer tube

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904665A (en) * 1957-06-18 1959-09-15 Applied Radiation Corp Vacuum trap
US3224503A (en) * 1960-12-10 1965-12-21 Konanz Albert Heat exchanger
US3231477A (en) * 1960-12-28 1966-01-25 Atomic Energy Authority Uk Finned nuclear reactor fuel element
US3238902A (en) * 1963-11-29 1966-03-08 Escher Hans Combustion furnace recuperators

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904665A (en) * 1957-06-18 1959-09-15 Applied Radiation Corp Vacuum trap
US3224503A (en) * 1960-12-10 1965-12-21 Konanz Albert Heat exchanger
US3231477A (en) * 1960-12-28 1966-01-25 Atomic Energy Authority Uk Finned nuclear reactor fuel element
US3238902A (en) * 1963-11-29 1966-03-08 Escher Hans Combustion furnace recuperators

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