GB449884A - Improvements in heat-exchange elements for heating or cooling fluids - Google Patents

Improvements in heat-exchange elements for heating or cooling fluids

Info

Publication number
GB449884A
GB449884A GB83135A GB83135A GB449884A GB 449884 A GB449884 A GB 449884A GB 83135 A GB83135 A GB 83135A GB 83135 A GB83135 A GB 83135A GB 449884 A GB449884 A GB 449884A
Authority
GB
United Kingdom
Prior art keywords
tubes
wire
coils
portions
flattened
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
GB83135A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB83135A priority Critical patent/GB449884A/en
Publication of GB449884A publication Critical patent/GB449884A/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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/06—Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
    • 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

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

449,884. Tubes for heat-exchangers. STILL, W. J., 19, Denbigh Road, Ealing, London. Jan. 10, 1935, Nos. 831 and 9016. [Class 64 (iii)] [See also Group XXII] Heat-interchanger elements comprise spirally wound flattened coils of wire w held at both narrow portions of each coil between flattened tubes t conveying one fluid, another fluid passing between the coils and tubes. The form of tube shown has parallel grooves g<1> ... g<4> dividing it into tubes t<1> ... t<5> ; the narrow portions of the wire coils, which form the side appear as a rectilineal zigzag wire, extend into and are preferably soldered to the grooves, and the wire constituting the longer portions of the coils is flattened to form vanes w<1> at right angles to the planes of the tubes, offering minimum resistance to the fluid flow. The flat portions in the wire may be formed by passing it between axially grooved rollers on its way to a coilforming blade at a rate which presents the round and still soft portions to the blade edges so that the flattened and hardened portions form the sides of the loops. The blade is tapered so as to provide by a screwthread adjustment the correct perimeter at the winding position, and has a spring drive to compensate for the cyclical variations of winding speed on the blade. The tubes may be made of tinned brass or copper and the coils of tinned copper wire so that when clamped together and heated the wires will become soldered to the tubes ; or the tubes may be coated with solder the wire not being tinned, or a length of solder may be inserted alongside each coil. The components may be assembled on an inclined table with the tube ends received in grooves in side ribs, and a pile of coils alternating with distance pieces stacked against each tube. The whole is clamped to a frame, the distance pieces are removed and the parts soldered. Specifications 271,122, [Class 64 (iii)], and 282,244, [Class 83 (iv)], are referred to.
GB83135A 1935-01-10 1935-01-10 Improvements in heat-exchange elements for heating or cooling fluids Expired GB449884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB83135A GB449884A (en) 1935-01-10 1935-01-10 Improvements in heat-exchange elements for heating or cooling fluids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB83135A GB449884A (en) 1935-01-10 1935-01-10 Improvements in heat-exchange elements for heating or cooling fluids

Publications (1)

Publication Number Publication Date
GB449884A true GB449884A (en) 1936-07-06

Family

ID=9711235

Family Applications (1)

Application Number Title Priority Date Filing Date
GB83135A Expired GB449884A (en) 1935-01-10 1935-01-10 Improvements in heat-exchange elements for heating or cooling fluids

Country Status (1)

Country Link
GB (1) GB449884A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1012247B (en) * 1954-03-23 1957-07-11 Molins Machine Co Ltd Wrapping machine for folding an envelope around objects of rectangular, block-like shape
GB2426322A (en) * 2005-07-22 2006-11-22 Michael Tate Exhaust Gas Heat Exchanger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1012247B (en) * 1954-03-23 1957-07-11 Molins Machine Co Ltd Wrapping machine for folding an envelope around objects of rectangular, block-like shape
GB2426322A (en) * 2005-07-22 2006-11-22 Michael Tate Exhaust Gas Heat Exchanger
GB2426322B (en) * 2005-07-22 2007-09-05 Michael Tate Exhaust gas heat exchanger

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