GB1204685A - Improvements relating to internally finned tubes for use as heat exchangers - Google Patents

Improvements relating to internally finned tubes for use as heat exchangers

Info

Publication number
GB1204685A
GB1204685A GB5662467A GB5662467A GB1204685A GB 1204685 A GB1204685 A GB 1204685A GB 5662467 A GB5662467 A GB 5662467A GB 5662467 A GB5662467 A GB 5662467A GB 1204685 A GB1204685 A GB 1204685A
Authority
GB
United Kingdom
Prior art keywords
tube
flanges
tubes
dec
web
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
Application number
GB5662467A
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.)
Variotherm S A
Original Assignee
Variotherm S A
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 Variotherm S A filed Critical Variotherm S A
Publication of GB1204685A publication Critical patent/GB1204685A/en
Expired 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/12—Forms of water tubes, e.g. of varying cross-section
    • F22B37/125—Bifurcates
    • 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/38—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water contained in separate elements, e.g. radiator-type element
    • 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
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0026—Guiding means in combustion gas channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Details Of Fluid Heaters (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

1,204,685. Heat exchange elements; water boilers. VARIOTHERM S.A. 13 Dec., 1967 [14 Dec., 1966], No. 56624/67. Headings F4A and F4S. A heat exchanger tube intended for use as a flue tube in a water heater, comprises a pair of channel members placed face to face and welded together at the abutting flanges, each channel member consisting of a web 3 with the flanges 8 projecting at right angles thereto and a plurality of parallel fins 4 extending from the web between the flanges 8. The finned channel section is preferably formed by hot-drawing or extrusion, the flanges 8 being slightly thicker or alternatively of the same thickness, as the fins 4. Each flange of the section is preformed with a chamfered edge which on welding enables a butt joint to be formed in which the V-formation of the chamfered portions becomes filled with the weld material. Fig. 3 shows a sectional plan view of a gas or oil fired water heater incorporating four of the tubes through which the combustion gases flow, the arrangement being such that the thickness of the water path 11 around the tubes is uniform. Baffles may be inserted within the tubes to direct the combustion gases towards the tube wall. In one form each baffle comprises a transversely corrugated strip at the upper end of the tube. Or a pyramidal or tapered member may project into the tube from its upper end with the smaller end of the pyramid or taper approximately at the centre of the tube. In a further form described, each baffle comprises a helical member extending through the length of the tube.
GB5662467A 1966-12-14 1967-12-13 Improvements relating to internally finned tubes for use as heat exchangers Expired GB1204685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV0032553 1966-12-14

Publications (1)

Publication Number Publication Date
GB1204685A true GB1204685A (en) 1970-09-09

Family

ID=7587376

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5662467A Expired GB1204685A (en) 1966-12-14 1967-12-13 Improvements relating to internally finned tubes for use as heat exchangers

Country Status (2)

Country Link
DE (1) DE1604076A1 (en)
GB (1) GB1204685A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000075592A1 (en) * 1999-06-07 2000-12-14 Lmb Kotlovski Inzenjering D.O.O. Rectangular heat exchanger tube with inner studs
WO2000075545A3 (en) * 1999-06-07 2001-06-21 Lmb Kotlovski Inzenjering D O Rectangular heat exchanger tube with inner studs

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157893B1 (en) * 1984-04-10 1987-12-23 Dometic Sales Corporation Heating apparatus for a water heating system for small rooms

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000075592A1 (en) * 1999-06-07 2000-12-14 Lmb Kotlovski Inzenjering D.O.O. Rectangular heat exchanger tube with inner studs
WO2000075545A3 (en) * 1999-06-07 2001-06-21 Lmb Kotlovski Inzenjering D O Rectangular heat exchanger tube with inner studs

Also Published As

Publication number Publication date
DE1604076A1 (en) 1971-01-14

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees