US3207215A - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
US3207215A
US3207215A US114399A US11439961A US3207215A US 3207215 A US3207215 A US 3207215A US 114399 A US114399 A US 114399A US 11439961 A US11439961 A US 11439961A US 3207215 A US3207215 A US 3207215A
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United States
Prior art keywords
heat exchanger
tubes
copper
tube sheet
tube
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Expired - Lifetime
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US114399A
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Jr Alfred Whittell
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Raypak Co Inc
Raypak Inc
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Raypak Inc
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Publication date
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Priority to US114399A priority Critical patent/US3207215A/en
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Publication of US3207215A publication Critical patent/US3207215A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using fluid fuel
    • 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

  • FIGURE 1 is a fragmentary perspective of the front header with parts broken away.
  • FIGURE 2 is a side elevation with the headers in section.
  • FIGURE 3 is a diagrammatic view of the tubing supporting and sealing assembly.
  • FIGURE 4 is a view similar to FIGURE 3 with the liner and tube sheet assembled.
  • FIGURE 5 is a view similar to FIGURE 4 with the tube assembled.
  • FIGURE 6 is a perspective of the tube sheet with a portion thereof broken away.
  • a heat exchanger is provided with a front header 10 and a rear header 12 with copper tubing 14 therebetween.
  • a series of fins 16 are provided on each tube 14 to facilitate heat transfer.
  • the tubes are arranged in four banks so that water entering the front head through inlet 18 is directed by bafile 20 into the first group or bank of tubes to the rear header.
  • the rear header is divided into upper and lower chambers 22 and 24 by baffle 26 and water enters the lower chamber 22 on the right hand side and its direction is reversed flowing through a second bank of tubes back to the front header.
  • the flow is then between baffles 20 and 28 to a third bank of tubes leading to upper chamber 24 where flow is directed through a fourth bank of tubes to the front header 10 and hence outlet 30.
  • the water makes four passes through the heated 3,207,215 Patented Sept. 21, 1965 gases from a burner (not shown) positioned beneath the tubes.
  • the first two passes are closest to the burner to facilitate the heat transfer.
  • the tubes 14 are of copper and the headers and their bafiies of bronze.
  • a tube sheet 32 is provided as a tube support at either end of the exchanger and is fixed to the housing 34 thereof.
  • tube sheets are of cast iron which have the outerface thereof very finely ground.
  • a heavy duty deep drawn copper liner 36 is then utilized having a series of tubular protuberances 38 formed therein which may be inserted into holes 40 in the tube sheet as best seen in FIGURE 4.
  • the tubes 14 are then inserted through the liner and flared back as at 42, best seen in FIGURE 5.
  • the headers 10 and 12 are secured by screws or otherwise to the tube sheets 32 to complete the assembly.
  • the water ways in the heat exchanger are all copper or bronze with the ferrous tube sheet shielded therefrom.
  • a heat exchanger assembly comprising: a ferrous tube sheet having holes therethrough, a copper sheet liner lying against one face of said tube sheet and having tubular protuberances thereon extending substantially through said holes from said one face, a series of copper tubes projecting through said holes and protuberances from the other face of said tube sheet, and having the extremities thereof flared outwardly into contact with the outer face of said liner.

Description

Sept. 21, 1965 A. WHITTELL, JR
HEAT EXCHANGER Filed June 2, 1961 Illlllllllllllllllllllll United States Patent 3,207,215 HEAT EXCHANGER Alfred Whittell, Jr., Los Angeles, Calif. Raypak Co. Inc., 2416 Chico Ave., El Monte, Calif.) Filed June 2, 1961, Ser. No. 114,399 1 Claim. (Cl. 165134) This invention relates to an improved heat exchanger.
It is an object of this invention to provide a heat exchanger, such as a hot water boiler, wherein all water way-s are coppered to avoid corrosion.
It is still a further object of this invention to shield the parts of the exchanger which are not copper from the water circulated therein.
It is still a further object of this invention to provide a heat exchanger of high efliciency and volume.
Other objects and advantages will be readily apparent from the following description:
In the drawings:
FIGURE 1 is a fragmentary perspective of the front header with parts broken away.
FIGURE 2 is a side elevation with the headers in section.
FIGURE 3 is a diagrammatic view of the tubing supporting and sealing assembly.
FIGURE 4 is a view similar to FIGURE 3 with the liner and tube sheet assembled.
FIGURE 5 is a view similar to FIGURE 4 with the tube assembled.
FIGURE 6 is a perspective of the tube sheet with a portion thereof broken away.
A heat exchanger is provided with a front header 10 and a rear header 12 with copper tubing 14 therebetween. A series of fins 16 are provided on each tube 14 to facilitate heat transfer.
The tubes are arranged in four banks so that water entering the front head through inlet 18 is directed by bafile 20 into the first group or bank of tubes to the rear header. The rear header is divided into upper and lower chambers 22 and 24 by baffle 26 and water enters the lower chamber 22 on the right hand side and its direction is reversed flowing through a second bank of tubes back to the front header. The flow is then between baffles 20 and 28 to a third bank of tubes leading to upper chamber 24 where flow is directed through a fourth bank of tubes to the front header 10 and hence outlet 30.
Thus the water makes four passes through the heated 3,207,215 Patented Sept. 21, 1965 gases from a burner (not shown) positioned beneath the tubes. The first two passes are closest to the burner to facilitate the heat transfer.
The tubes 14 are of copper and the headers and their bafiies of bronze. However, a tube sheet 32 is provided as a tube support at either end of the exchanger and is fixed to the housing 34 thereof.
To add strength and reduce expense, these tube sheets are of cast iron which have the outerface thereof very finely ground. A heavy duty deep drawn copper liner 36 is then utilized having a series of tubular protuberances 38 formed therein which may be inserted into holes 40 in the tube sheet as best seen in FIGURE 4. The tubes 14 are then inserted through the liner and flared back as at 42, best seen in FIGURE 5.
The headers 10 and 12 are secured by screws or otherwise to the tube sheets 32 to complete the assembly.
Thus, the water ways in the heat exchanger are all copper or bronze with the ferrous tube sheet shielded therefrom.
While what hereinbefore has been described as the preferred embodiment of this invention, it is readily apparent that alterations and modifications can be resorted to without departing from the scope of this invention and such alterations and modifications are intended to be included within the scope of the appended claim.
I claim:
A heat exchanger assembly comprising: a ferrous tube sheet having holes therethrough, a copper sheet liner lying against one face of said tube sheet and having tubular protuberances thereon extending substantially through said holes from said one face, a series of copper tubes projecting through said holes and protuberances from the other face of said tube sheet, and having the extremities thereof flared outwardly into contact with the outer face of said liner.
References Cited by the Examiner UNITED STATES PATENTS 948,373 2/10 Elliott 172 X 1,420,182 -6/ 22 Cleveland 122365 X 1,589,646 6/ 26 Hicks.
2,447,259 8 48 Lucke.
CHARLES SUKALO, Primary Examiner.
L. MARTIN, Examiner.
US114399A 1961-06-02 1961-06-02 Heat exchanger Expired - Lifetime US3207215A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3583478A (en) * 1967-07-21 1971-06-08 Ferodo Sa Multitube radiator
US3628923A (en) * 1968-10-24 1971-12-21 Texas Instruments Inc Method of making header joint for a clad tubulation
US3717925A (en) * 1970-03-09 1973-02-27 Yorkshire Imperial Metals Ltd Method of making explosively welded joints
US3750747A (en) * 1968-12-30 1973-08-07 Texas Instruments Inc Heat exchanger assembly
US5163509A (en) * 1991-08-22 1992-11-17 Stark Manufacturing, Inc. Manifold assembly and method of making same
EP1559983A1 (en) * 2004-01-28 2005-08-03 Oostendorp Apparatenbouw BV Method for forming a welded connection between a tubesheet and a number of tubes and a device produced by such method
US20080121384A1 (en) * 2006-11-29 2008-05-29 Po-Yung Tseng Liquid cooled heat dissipator
US20140090827A1 (en) * 2012-09-29 2014-04-03 Nortiz Corporation Heat exchanger and production method thereof
US20160377348A1 (en) * 2015-06-25 2016-12-29 Noritz Corporation Heat exchanger

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US948373A (en) * 1908-02-05 1910-02-08 Sterling Elliott Tubular steam-boiler.
US1420182A (en) * 1919-09-27 1922-06-20 William E Cleveland Steam boiler and method of making the same
US1589646A (en) * 1925-07-13 1926-06-22 Irving C Hicks Feed-water heater
US2447259A (en) * 1945-02-12 1948-08-17 Worthington Pump & Mach Corp Condenser

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US948373A (en) * 1908-02-05 1910-02-08 Sterling Elliott Tubular steam-boiler.
US1420182A (en) * 1919-09-27 1922-06-20 William E Cleveland Steam boiler and method of making the same
US1589646A (en) * 1925-07-13 1926-06-22 Irving C Hicks Feed-water heater
US2447259A (en) * 1945-02-12 1948-08-17 Worthington Pump & Mach Corp Condenser

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3583478A (en) * 1967-07-21 1971-06-08 Ferodo Sa Multitube radiator
US3628923A (en) * 1968-10-24 1971-12-21 Texas Instruments Inc Method of making header joint for a clad tubulation
US3750747A (en) * 1968-12-30 1973-08-07 Texas Instruments Inc Heat exchanger assembly
US3717925A (en) * 1970-03-09 1973-02-27 Yorkshire Imperial Metals Ltd Method of making explosively welded joints
US5163509A (en) * 1991-08-22 1992-11-17 Stark Manufacturing, Inc. Manifold assembly and method of making same
EP1559983A1 (en) * 2004-01-28 2005-08-03 Oostendorp Apparatenbouw BV Method for forming a welded connection between a tubesheet and a number of tubes and a device produced by such method
WO2005075923A1 (en) * 2004-01-28 2005-08-18 Madioen Holding B.V. Method for forming a welded connection between a tubesheet and a number of tubes and a device produced by such method
US20080121384A1 (en) * 2006-11-29 2008-05-29 Po-Yung Tseng Liquid cooled heat dissipator
US20140090827A1 (en) * 2012-09-29 2014-04-03 Nortiz Corporation Heat exchanger and production method thereof
US9970716B2 (en) * 2012-09-29 2018-05-15 Noritz Corporation Heat exchanger and production method thereof
US20160377348A1 (en) * 2015-06-25 2016-12-29 Noritz Corporation Heat exchanger
US10175008B2 (en) * 2015-06-25 2019-01-08 Noritz Corporation Heat exchanger

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