Apparatus for transferring heat by means of hollow filaments, and its use in various heating systems

• US 4,484,624 A
• Filed: 06/22/1982
• Issued: 11/27/1984
• Est. Priority Date: 11/06/1978
• Status: Expired due to Fees

• Current Assignee: Akzo Nobel N.V. (Nouryon BV)
• Original Assignee: Akzo Nobel N.V. (Nouryon BV)
• Inventors: Schneider, Klaus, Ostertag, Karl, Vleggaar, Jan
• Primary Examiner(s): Richter, Sheldon J.
• Application Number:
  US06/390,807
• Time in Patent Office: 889 Days
• Field of Search: 165/163, 165/165, 165/180, 165/173, 165/1, 165/159, 165/156, 165/164, 165/169, 165/168, 165/172, 138/130, 138/144
• US Class Current: 165/172
• CPC Class Codes: B60H 1/00321 Heat exchangers for air-conditioning devices B60H1/3227 takes precedence
• CPC Class Codes: F24S 10/70 the working fluids being conveyed through tubular absorbing conduits
• CPC Class Codes: F28D 7/024 the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
• CPC Class Codes: F28D 7/04 the conduits being spirally coiled F28D7/10 takes precedenceF28D7/0016 and F28D7/0033 take precedence
• CPC Class Codes: F28F 1/02 Tubular elements of cross-section which is non-circular F28F1/08, F28F1/10 take precedence
• CPC Class Codes: F28F 1/04 polygonal, e.g. rectangular F28F1/022 takes precedence
• CPC Class Codes: F28F 21/062 the heat-exchange apparatus employing tubular conduits
• CPC Class Codes: F28F 21/067 Details
• CPC Class Codes: F28F 9/22 Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
• CPC Class Codes: Y02E 10/44 Heat exchange systems
• CPC Class Codes: Y10S 165/496 Spiral or helical coil
• CPC Class Codes: Y10S 165/905 Materials of manufacture

Abstract

The invention relates to an apparatus for the transfer of heat by means of hollow filaments which extend in the form of a helix and/or a spiral and are provided in more than two layers. The apparatus may be made up of a multilayer winding. The outer diameter of the hollow filaments is preferably 0.05-1 mm and the wall thickness is 5-20% of the outer diameter. The invention also relates to the use of this heat exchanger in various heating systems.

Claims

1. An apparatus for exchanging heat between two fluids comprising a tubular core member with a fluid-permeable tube wall and hollow polymer filaments having an outer diameter of 0.05 to 5 mm and a wall thickness of 5 to 20 percent of the outer diameter, means for flowing a first fluid through the core member and its permeable tube wall, said hollow filaments extending in the form of a helix in a plurality of more than two layers wound upon each other with the hollow filaments of each layer multiply crossing the hollow filaments of the next layers and the innermost layer of the hollow filaments being wound on the core, and means for flowing a second fluid through the hollow filaments.

2. The heat exchange apparatus of claim 1, in which the hollow polymer filaments have an outer diameter of 0.05 to 1 mm.

3. The heat exchange apparatus of claim 1, wherein the polymer is a polyolefin, polystyrene, a copolymer of styrene and butadiene, acrylonitrile and acrylate ester, a polyhaloolefin, polyvinyl alcohol, polyvinyl acetate, a polyacrylate, a synthetic elastomer, natural rubber, a polyoxide, a polyester, a polyamide, a polycarbonate, a polyimide, polybenzimidazole, polyurethane, a regenerated cellulose, an epoxy resin, an amino plastic, a polysulfone, or an inorganic polymer.

4. The heat exchange apparatus of claim 1, installed in a motor vehicle as a radiator.

5. The apparatus of claim 1, installed in a heat pump system.