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1. (WO1989000664) TUBULAR HEAT EXCHANGER INCORPORATING THREE COAXIAL TUBES AND CONNECTED TO A STORAGE TANK FOR HEATED WATER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1989/000664 International Application No.: PCT/SE1988/000368
Publication Date: 26.01.1989 International Filing Date: 05.07.1988
Chapter 2 Demand Filed: 03.03.1989
IPC:
F24D 10/00 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24
HEATING; RANGES; VENTILATING
D
DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
10
District heating systems
Applicants:
HULTGREN, Sigurd [SE/SE]; SE
Inventors:
HULTGREN, Sigurd; SE
Agent:
HJÄRNE, Per-Urban @; H. Albihns Patentbyrå AB Box 3137 S-103 62 Stockholm, SE
Priority Data:
8702897-317.07.1987SE
Title (EN) TUBULAR HEAT EXCHANGER INCORPORATING THREE COAXIAL TUBES AND CONNECTED TO A STORAGE TANK FOR HEATED WATER
(FR) ECHANGEUR THERMIQUE TUBULAIRE COMPRENANT TROIS TUBES COAXIAUX RELIES A UN RESERVOIR DE STOCKAGE D'EAU CHAUFFEE
Abstract:
(EN) The present invention relates to an arrangement for supplying hot water to smaller dwelling houses and the like connected to a district hot-water network, for heating and consumer purposes. The arrangement includes a heat exchanger (2), a radiator circuit (1), a hot-water tap-off point (7), a cold water inlet (8) and a water heater (10). In accordance with the invention, the heat exchanger comprises at least one three-pipe heat exchanger (2), the pipes (2.1, 2.2, 2.3) of which define an inner tubular channel (40) and two annular channels (17, 18) which extend coaxially with the inner channel, of which channels a first channel is connected to the radiator circuit (1) so as to form a closed circuit, a second channel is connected to the district hot-water network, and a third channel, whose inlet is connected to the cold water inlet (8), is connected to the hot water tap-off point (7) via the water heater (10).
(FR) Agencement permettant d'alimenter en eau chaude des maisons d'habitation de taille réduite et analogue, relié à un réseau d'eau chaude de quartier, destiné à des fins de chauffage et de consommation. L'agencement comprend un échangeur thermique (2), un circuit de radiateurs (1), un point (7) d'écoulement d'eau chaude, une arrivée (8) d'eau froide et un chauffe-eau (10). D'après l'invention, l'échangeur thermique comprend au moins un échangeur thermique (2) à trois canalisations (2.1, 2.2, 2.3) définissant un canal (40) tubulaire interne et deux canaux (17, 18) annulaires s'étendant coaxialement avec le canal interne, dont un premier canal est relié au circuit de radiateurs (1) de manière à former un circuit fermé, un second canal est relié au réseau d'eau chaude de quartier, et un troisième canal dont l'arrivée est reliée à celle (8) de l'eau froide, est relié au point (7) d'écoulement d'eau chaude, par le chauffe-eau (10).
Designated States: DK, FI, NO, US
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: Swedish (SV)