WO2005079116A3 - Mehod and apparatus for heating a fluidic load using radio frequency energy - Google Patents

Mehod and apparatus for heating a fluidic load using radio frequency energy Download PDF

Info

Publication number
WO2005079116A3
WO2005079116A3 PCT/GB2005/000479 GB2005000479W WO2005079116A3 WO 2005079116 A3 WO2005079116 A3 WO 2005079116A3 GB 2005000479 W GB2005000479 W GB 2005000479W WO 2005079116 A3 WO2005079116 A3 WO 2005079116A3
Authority
WO
WIPO (PCT)
Prior art keywords
radio frequency
water
frequency energy
energy
plate
Prior art date
Application number
PCT/GB2005/000479
Other languages
French (fr)
Other versions
WO2005079116A2 (en
Inventor
Michael Kiernan
Nigel Jones
Original Assignee
Micro Heat Ltd
Michael Kiernan
Nigel Jones
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
Priority claimed from GB0403087A external-priority patent/GB0403087D0/en
Application filed by Micro Heat Ltd, Michael Kiernan, Nigel Jones filed Critical Micro Heat Ltd
Publication of WO2005079116A2 publication Critical patent/WO2005079116A2/en
Publication of WO2005079116A3 publication Critical patent/WO2005079116A3/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/80—Apparatus for specific applications
    • H05B6/802—Apparatus for specific applications for heating fluids
    • 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
    • F24H1/225—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating electrical central heating boilers

Abstract

Apparatus for heating water (12) in a tank (10) comprising a radio frequency energy source, such as a magnetron (14). Radio frequency energy is supplied from the source (14) to the water (12) in the tank (10) via a substantially conical waveguide. The radius of the waveguide (16) at the point (18) at which the radio frequency energy is first incident from the magnetron (14) is beneficially greater than λ/4, where λ is the wavelength of the radio frequency energy. A PTFE plate or membrane (20) is provided between the distal end of the waveguide (16) and the body of water (12), at least portion of the upper surface plate (20) being substantially conical so as to provide a non-uniform interface between the water (12) to be heated and the radio frequency energy. The plate (20) is substantially transparent to the radio frequency energy, i.e. it does not absorb or reflect such energy. In use, RF energy emitted perpendicularly from the magnetron (14) strikes the conical waveguide (16) at points (18), and is reflected upwards towards the water (12). The energy passes through the first surface of the PTFE plate (20) with minimal absorption and strikes the interface between the plate (20) and the water (12). As a result, the angle of reflection of the RF energy is such that little, if any, thereof is reflected back to the magnetron (14). Instead, it simply ‘bounces’ around the inside of the waveguide (16) until it is returned to the water (12). An angled, microwave reflective plate (30) may be provided on an upper portion of the tank (10).
PCT/GB2005/000479 2004-02-11 2005-02-10 Mehod and apparatus for heating a fluidic load using radio frequency energy WO2005079116A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0403087A GB0403087D0 (en) 2004-02-11 2004-02-11 Method and apparatus for heating a fluidic load using radio frequency energy
GB0403087.0 2004-02-11
GB0403677.8 2004-02-19
GB0403677A GB0403677D0 (en) 2004-02-11 2004-02-19 Method & apparatus for heating a fluidic load using radio frequency energy

Publications (2)

Publication Number Publication Date
WO2005079116A2 WO2005079116A2 (en) 2005-08-25
WO2005079116A3 true WO2005079116A3 (en) 2005-10-27

Family

ID=34863235

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/000479 WO2005079116A2 (en) 2004-02-11 2005-02-10 Mehod and apparatus for heating a fluidic load using radio frequency energy

Country Status (1)

Country Link
WO (1) WO2005079116A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107062592A (en) * 2017-03-30 2017-08-18 广东美的厨房电器制造有限公司 Microwave water-heater
KR102044489B1 (en) * 2018-05-16 2019-11-13 주식회사 비앤비 Boiler using micro wave

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067683A (en) * 1976-06-14 1978-01-10 Frank T. Sullivan, Inc. Method and apparatus for controlling fluency of high viscosity hydrocarbon fluids
CA1082801A (en) * 1977-03-08 1980-07-29 Michael A. Hamid Fog clearing by microwave power
EP0014121A1 (en) * 1979-01-22 1980-08-06 JD-Technologie AG Microwave heating apparatus
US4752663A (en) * 1986-03-06 1988-06-21 Quindicum Limited Counter-top microwave oven with horn and diffusing lens
US4853507A (en) * 1988-04-28 1989-08-01 E. I. Dupont De Nemours & Company Apparatus for microwave separation of emulsions
EP0967841A2 (en) * 1998-06-25 1999-12-29 Elmatec Oy Portable microwave drying apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067683A (en) * 1976-06-14 1978-01-10 Frank T. Sullivan, Inc. Method and apparatus for controlling fluency of high viscosity hydrocarbon fluids
CA1082801A (en) * 1977-03-08 1980-07-29 Michael A. Hamid Fog clearing by microwave power
EP0014121A1 (en) * 1979-01-22 1980-08-06 JD-Technologie AG Microwave heating apparatus
US4752663A (en) * 1986-03-06 1988-06-21 Quindicum Limited Counter-top microwave oven with horn and diffusing lens
US4853507A (en) * 1988-04-28 1989-08-01 E. I. Dupont De Nemours & Company Apparatus for microwave separation of emulsions
EP0967841A2 (en) * 1998-06-25 1999-12-29 Elmatec Oy Portable microwave drying apparatus

Also Published As

Publication number Publication date
WO2005079116A2 (en) 2005-08-25

Similar Documents

Publication Publication Date Title
JP2763679B2 (en) Non-imaging light illumination system
TWI549704B (en) Sterilizing device and manufacturing method for sterilizing device
US8854734B2 (en) Integrating optical system and methods
WO2010143329A1 (en) Simulated solar light application device
JPH114116A (en) Duplex reflector micro-wave antenna used for terrestrial communication system
DK1196010T3 (en) Heating apparatus and method of heating objects
WO2005079116A3 (en) Mehod and apparatus for heating a fluidic load using radio frequency energy
CN1725432B (en) Uv light irradiating device
WO2000030411A1 (en) Extendable focal length lamp
WO2006122032A3 (en) Suppression of stray light propagation in a substrate
JP5493428B2 (en) Weather resistance test equipment
JP2007081233A5 (en)
US7207686B2 (en) Graphic back-lighting for panel with contact-less switch sensors
EP1035428A3 (en) Optical logic device and optical memory device
JPH06511594A (en) Optical pump type high output medical system
KR102246452B1 (en) Non-dispersive Infra Red(NDIR) gas sensor and manufacturing method thereof
CN104198383B (en) Multi-light-path near-ultraviolet simulator
CN209059119U (en) The operation panel of endoscope processor
CN202171653U (en) Terahertz wave forward focusing reflector
CN112709973B (en) Method for generating composite light by exciting fluorescence with laser and light path structure thereof
JP3657241B2 (en) Adapter element
CN210990224U (en) Hand-held photoacoustic imaging detection mechanism
CN112305079B (en) Pulse light driven focusing type ultrasonic emitter
US6617600B1 (en) Radiation shield device and method
JP2003004990A (en) Forming method for optical waveguide

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

122 Ep: pct application non-entry in european phase