EP1384959A2 - Turbogénérateur pour chauffe-eau - Google Patents

Turbogénérateur pour chauffe-eau Download PDF

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Publication number
EP1384959A2
EP1384959A2 EP03380163A EP03380163A EP1384959A2 EP 1384959 A2 EP1384959 A2 EP 1384959A2 EP 03380163 A EP03380163 A EP 03380163A EP 03380163 A EP03380163 A EP 03380163A EP 1384959 A2 EP1384959 A2 EP 1384959A2
Authority
EP
European Patent Office
Prior art keywords
pipe
conduit
alternator
generator assembly
turbo generator
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.)
Withdrawn
Application number
EP03380163A
Other languages
German (de)
English (en)
Other versions
EP1384959A3 (fr
Inventor
Maite Amozarrain Atxa
Jose Joaquin Antxia Uribetxeberria
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.)
Fagor Electrodomesticos SCL
Original Assignee
Fagor Electrodomesticos SCL
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 Fagor Electrodomesticos SCL filed Critical Fagor Electrodomesticos SCL
Publication of EP1384959A2 publication Critical patent/EP1384959A2/fr
Publication of EP1384959A3 publication Critical patent/EP1384959A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D18/00—Small-scale combined heat and power [CHP] generation systems specially adapted for domestic heating, space heating or domestic hot-water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2101/00—Electric generators of small-scale CHP systems
    • F24D2101/10—Gas turbines; Steam engines or steam turbines; Water turbines, e.g. located in water pipes

Definitions

  • the present invention relates to an electric power generating unit actuated by a hydraulic turbine for mounting in a domestic water heater, wherein the turbine is associated with the generator dynamo-electric alternator and interposed in the water heater conduit.
  • Miniature-sized turbine power generating assemblies for water heaters that produce a peak electric current of around 100 mA are already known. They are made up of a dynamo-electric alternator and a longitudinal portion of water conduit pipe , which is interposed in the sanitary cold water circuit. The portion of pipe has a built-in minimum water pressure discharge valve and the turbine is driven by a flow of water shunted from the heater sanitary water circuit, parallel to the valve and bypassing it.
  • the alternator body is mounted on the turbo generator conduit pipe and coupled to it with a watertight joint.
  • the alternator rotor is the permanent magnet type and its shaft is shared by the turbine, so that the rotor is housed in a chamber in contact with the current of water that impels the turbine.
  • the turbine is wholly immersed in a flow of actuating water shunted from the heater water flow and parallel to it.
  • the bypass conduit for the actuating flow is formed by moulding outside the heater flow conduit pipe, below a base of the alternator body, and it is screwed to the conduit pipe.
  • the object of the present invention is a miniature electrical turbo generator assembly for a domestic water heater which is inserted in the sanitary cold water conduit circuit, as defined in claim 1.
  • the main heater circuit conduit with a discharge valve, the conduit for the turbine actuating flow, the turbine housing chamber, and the means for coupling the alternator to the turbine are constructed wholly inside a section of conduit pipe moulded with a substantially cylindrical external configuration.
  • the alternator body housing the magnet rotor and supporting the drive shaft is of simple construction, as the preferably toroidal shaped stator is mounted on a rotor body, which is coupled directly to this portion of pipe, and in this way only one body is formed for the magnet rotor for recess coupling.
  • the parallel conduit for actuating the turbine wheel is formed inside the portion of main conduit pipe.
  • the parallel duct inlet and outlet and the arrangement of the vane wheel in it are adapted to reduce the pressure drop in the bypass conduit actuating flow.
  • an embodiment of turbo generator assembly 1 for a domestic water heater in accordance with the present invention comprises: an alternator 2 with a permanent magnet rotor 3, a turbine wheel 5 turning a drive shaft 4 common to the magnet rotor 3, and a preferably toroidal shaped stator 13 encircling a alternator body 6, a longitudinal portion of conduit pipe 7, which is inserted in the sanitary water circuit 19 of a heater, and it has a flat inner wall 7c extended in the axial direction of the pipe 7 for its division into a main conduit 17, provided with a discharge valve 8, and a bypass conduit in which the turbine wheel 5 is interposed.
  • the dividing wall 7c thereby establishes two water flows, a main flow 17', which is controlled by the discharge valve 8, and an actuating flow 18' for the wheel 5, which bypasses the discharge valve 8.
  • the alternator body 6 houses a rotor chamber 14, and the pipe 7 also comprises a turbine chamber 9 formed integral with the pipe 7 and isolated from the rotor chamber 14.
  • both are provided with direct recess coupling means 6b, 7b and means 6b,23,24 for the watertight sealing of the rotor chamber 14.
  • the conduit pipe 7 has an approximate length of 77 mm, an outside diameter of 24 mm, inside diameter of around 17 mm, the magnet rotor 3 has a diameter of 20 mm, and the turbine wheel has a diameter of 12 mm.
  • the alternator body 6 is made of tubular-shaped moulded plastic with a dome 6a on the body which forms the magnet rotor chamber, and a tubular part 6b for mounting on the tube 7.
  • the stator 13 is mounted around the dome 6a and the drive shaft 4 is supported with one end on a support 15 on this dome 6a and with the opposite end at the bottom of a housing 10 in the wheel 5, whose vanes are thereby completely exposed to an impelling water flow.
  • the conduit pipe 7 is of uniform cylindrical cross section with a ducting centre line 12, and by means of a flat wall 7c, which divides the round section of the pipe 7, it forms the main conduit 17 and the parallel bypass conduit 18.
  • the dividing wall 7c extends in the direction of the heater flow 19, from upstream of the turbine chamber 9 to downstream of the valve 8.
  • the turbine chamber 9 is formed by means of a housing 10 in the wheel 5 integral with the partition wall 7c and it extends from a cylindrical wall 7a of the portion of tube 7 below the plane of the dividing wall 7c.
  • a main flow 17' is established when the pressure in the heater circuit 19 exceeds a value, for instance, of 0.2 bar.
  • the bypass conduit 18 maintains a flow 18' towards the turbine chamber 9, irrespective of whether the discharge valve 8 is closed. Initially, while the main flow 17' circulates, the shunted flow 18' is greater, so that the alternator 2 generates more electric power for supplying the heater ignition circuit.
  • the bypass conduit 18, as per the plan view (FIG. 3), has a funnel-shaped input section 18a, while the turbine chamber 9 discharges onto a width 20 equivalent to the space between two vanes on wheel 5, and an output section 18b which widens downstream.
  • the input 18a and output sections 18b of the actuating conduit are formed between the flat dividing wall 7c below (FIG. 1) and the conduit pipe cylindrical wall 7a above.
  • the mouth 20 of the input section 18a is located centrally on the ducting centre line 12. Thus, the height 22 of the mouth 20 will be maximum coinciding with a diameter of the cylindrical wall 7a, and the shunted actuating current 18' will therefore be greater through the conduit 18 on the dividing wall 7c.
  • the turbine and rotor drive shaft 4 is situated on an offset plane “e” in relation to plane "E", which passes through a central axis 12 of conducting (FIG. 1 and 3).
  • this maximum height 22 of the conduit 18 is 5,25 mm, i.e. approximately one third of the inside diameter of the pipe 7, and the dimension "d" of the offsetting between the plane "E” which passes through the centre axis 12 of the portion of pipe 7 and plane “e” which passes through the shaft 4 of turbine wheel 5 is 5 mm.
  • the conduit pipe 7 has an integral cylindrical part 7b (FIG. 2) which extends transversely protruding from wall 7a outwards, for the coupling of the alternator body 6.
  • the part 7b of the tube forms a cavity, in which the tubular part 6b of the alternator body engages, provided at the bottom with a flat bearing surface.
  • the height of the wall 6b determines a separation distance 21 between the wheel 5 and the rotor 3.
  • the wall 6a of the alternator body has a number of peripheral edges 26 bent inwards, and the pipe 7 has a number of peripheral edges bent outwards, forming a bayonet type seal between one another.
  • a sealing ring 24 is arranged between the alternator body6 and the outer surface 23 of the pipe 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
EP03380163A 2002-07-25 2003-07-08 Turbogénérateur pour chauffe-eau Withdrawn EP1384959A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200201895U ES1052504Y (es) 2002-07-25 2002-07-25 Grupo turbogenerador para calentador de agua
ES200201895 2002-07-25

Publications (2)

Publication Number Publication Date
EP1384959A2 true EP1384959A2 (fr) 2004-01-28
EP1384959A3 EP1384959A3 (fr) 2004-10-06

Family

ID=8501807

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03380163A Withdrawn EP1384959A3 (fr) 2002-07-25 2003-07-08 Turbogénérateur pour chauffe-eau

Country Status (2)

Country Link
EP (1) EP1384959A3 (fr)
ES (1) ES1052504Y (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7005758B2 (en) * 2003-05-19 2006-02-28 Sankyo Seiki Mfg. Co., Ltd. Hydraulic power generating device
EP1772676A3 (fr) * 2005-10-10 2009-02-25 Hebert Ganglberger Installation d'échange de chaleur
EP3048347A1 (fr) * 2015-01-22 2016-07-27 ARI-ARMATUREN ALBERT RICHTER GmbH & Co.KG. Vanne de regulation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986007503A1 (fr) 1985-06-06 1986-12-18 Charron Jean Claude Microturboalternateur hydraulique
WO2001036876A1 (fr) 1999-11-16 2001-05-25 Robert Bosch Gmbh Dispositif permettant de produire une tension electrique destinee aux composants d'un chauffe-eau chauffe au gaz

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372113A (en) * 1981-01-15 1983-02-08 Ramer James L Pipeline energy recapture device
JPS6047883A (ja) * 1983-08-26 1985-03-15 Masao Kinemura 自然流下パイプラインに付帯させる発電装置
DE3443491A1 (de) * 1984-11-29 1986-05-28 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Energierueckgewinnungsvorrichtung
US4809510A (en) * 1985-01-24 1989-03-07 Baker Cac, Inc. Flowline power generator
CA1323906C (fr) * 1988-09-27 1993-11-02 Ferdinand F. Hochstrasser Raccord hydraulique pour installations sanitaires domestiques

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986007503A1 (fr) 1985-06-06 1986-12-18 Charron Jean Claude Microturboalternateur hydraulique
WO2001036876A1 (fr) 1999-11-16 2001-05-25 Robert Bosch Gmbh Dispositif permettant de produire une tension electrique destinee aux composants d'un chauffe-eau chauffe au gaz

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7005758B2 (en) * 2003-05-19 2006-02-28 Sankyo Seiki Mfg. Co., Ltd. Hydraulic power generating device
EP1772676A3 (fr) * 2005-10-10 2009-02-25 Hebert Ganglberger Installation d'échange de chaleur
EP3048347A1 (fr) * 2015-01-22 2016-07-27 ARI-ARMATUREN ALBERT RICHTER GmbH & Co.KG. Vanne de regulation

Also Published As

Publication number Publication date
ES1052504U (es) 2002-12-16
ES1052504Y (es) 2003-04-16
EP1384959A3 (fr) 2004-10-06

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