EP0375999B1 - Vorrichtung zur Behandlung von Gegenständen mit UHF-Energie - Google Patents

Vorrichtung zur Behandlung von Gegenständen mit UHF-Energie Download PDF

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Publication number
EP0375999B1
EP0375999B1 EP89122319A EP89122319A EP0375999B1 EP 0375999 B1 EP0375999 B1 EP 0375999B1 EP 89122319 A EP89122319 A EP 89122319A EP 89122319 A EP89122319 A EP 89122319A EP 0375999 B1 EP0375999 B1 EP 0375999B1
Authority
EP
European Patent Office
Prior art keywords
uhf
treatment room
cover
energy
articulation
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 - Lifetime
Application number
EP89122319A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0375999A3 (de
EP0375999A2 (de
Inventor
Wilfried Dipl.-Ing. Baumgarten
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.)
Baumgarten Wilfried Dipl-Ing
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
Publication of EP0375999A2 publication Critical patent/EP0375999A2/de
Publication of EP0375999A3 publication Critical patent/EP0375999A3/de
Application granted granted Critical
Publication of EP0375999B1 publication Critical patent/EP0375999B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H05B6/78—Arrangements for continuous movement of material

Definitions

  • the invention relates to a device for treating objects with UHF energy, consisting of an elongated treatment room, which is constructed from treatment sections and temperature compensation sections, which is provided on the entrance and exit sides with UHF locks, through which a conveying device runs and on its top and / or underside is provided with feed devices for UHF energy, which are connected to their UHF energy source via waveguides, some parts of the top of the treatment space being designed as hinged covers to the side of the feed devices.
  • Such a device has become known from DE-26 42 152, which has a treatment room with a C-shaped cross section, the open side of which can be closed by hinged doors.
  • This device has the advantage that UHF energy can be fed into the treatment room from above and from below, and that the treatment room is accessible everywhere for operating and cleaning work.
  • the feeders for the UHF energy to the waveguide supplying the UHF energy can, one has accepted the disadvantage that the operating and cleaning work must be carried out in a stooped position. Because UHF treatment rooms are arranged at a height of 60 to 110 cm.
  • the invention avoids the disadvantages of the prior art. It is the object of the present invention to provide a system for treating products with UHF energy which, with a simple construction, allows the treatment room to be opened from above over the entire length of the treatment room without the energy coupling causing difficulties.
  • the invention consists in that parts of the top of the treatment room with UHF feed devices are designed as hinged or removable covers, and that of the UHF energy source waveguide leading to the UHF feed device has a joint arranged in the axis of the lid hinges in the waveguide, consists of at least two parts that can be detached from one another and is surrounded at the joint location by a trap for UHF energy.
  • This device is easy to manufacture and is characterized in that the energy transfer is realized in a simple manner and the system is trouble-free with a long service life. Wear parts such as flexible coaxial conductors are avoided.
  • the two waveguides are offset next to one another at the articulation point and have an opening on the mutually facing sides which is surrounded by a mechanical annular joint.
  • At least one cover part is provided on at least one side with a microwave trap and covers an adjacent cover part or an end part of the treatment room.
  • the treatment room has a single cover which covers both feed points and temperature compensation sections.
  • the treatment room is composed of six parts, two of which are designed in the same way.
  • the treatment room On the input side, the treatment room has an entrance lock 1, to which a treatment section 2 is connected and to this a temperature compensation section 3. This is followed by a treatment section 2 and then to a temperature compensation section 3.
  • These sections forming the treatment room are closed at the end by an exit lock 4.
  • Each of these routes is provided with its own cover 5, 6.
  • Each lid is attached to two hinges 7.
  • the covers 5 of the treatment sections carry a waveguide 8 with two feed points 9 entering the interior of the treatment section.
  • the waveguide 8 has two elbows 10 which lead to the articulation point 11 which is arranged coaxially with the joints of the hinges 7.
  • Another waveguide 12 leads from this joint point to the UHF energy source 13.
  • the cover 5 with its UHF traps 14 covers the adjacent cover 6 of the recreational area 3 or the lock 1, 4.
  • the waveguides 8, 12 which are rectangular in cross section, each have a flange 15, indicated by dashed lines, at their ends, which are surrounded by an articulated ring 16 with two inwardly directed flanges.
  • This ring 16 is designed as a microwave trap.
  • the waveguide 8, 12 are rectangular. When closed, their cross sections are aligned with one another, when open, the cross sections are perpendicular to one another.
  • the waveguides 8, 12 each have an opening 17 on the sides facing one another, to which a piece of pipe 18 with a flange 15 connects.
  • the two flanges 15 are covered by an articulated ring 16 with inwardly facing flanges.
  • This joint ring 16 is designed as a microwave trap.
  • the two waveguides 8, 12 are connected with their openings 17 by a metal hose 19.
  • a conveyor belt 20 runs through the treatment room as a conveyor device.
  • two waveguide parts 21, 22 are inserted one into the other. Both parts have a cross-sectional jump on the inside and outside. Their internal cross-section is identical. The length of the tube sections inserted into each other is a quarter of the wavelength.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Cleaning In General (AREA)
EP89122319A 1988-12-24 1989-12-04 Vorrichtung zur Behandlung von Gegenständen mit UHF-Energie Expired - Lifetime EP0375999B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3843904A DE3843904A1 (de) 1988-12-24 1988-12-24 Vorrichtung zur behandlung von gegenstaenden mit uhf-energie
DE3843904 1988-12-24

Publications (3)

Publication Number Publication Date
EP0375999A2 EP0375999A2 (de) 1990-07-04
EP0375999A3 EP0375999A3 (de) 1991-08-07
EP0375999B1 true EP0375999B1 (de) 1994-12-07

Family

ID=6370267

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89122319A Expired - Lifetime EP0375999B1 (de) 1988-12-24 1989-12-04 Vorrichtung zur Behandlung von Gegenständen mit UHF-Energie

Country Status (6)

Country Link
US (1) US5049362A (enExample)
EP (1) EP0375999B1 (enExample)
JP (1) JPH02267886A (enExample)
DD (1) DD286415A5 (enExample)
DE (1) DE3843904A1 (enExample)
ES (1) ES2067522T3 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4143541C2 (de) * 1991-02-19 1999-03-04 Mls Gmbh Vorrichtung zum Extrahieren von Proben mittels eines Lösungsmittels bei erhöhter Temperatur
US8679401B2 (en) 2009-07-15 2014-03-25 Microzap, Inc. Microwave disinfection and sterilization

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603741A (en) * 1946-12-12 1952-07-15 Goodrich Co B F High-frequency heating
US3916137A (en) * 1974-05-20 1975-10-28 Gerling Moore Inc Multi-mode microwave cavity feed system
CH586881A5 (enExample) * 1975-05-21 1977-04-15 Kreis Ag
GB1502262A (en) * 1975-07-01 1978-03-01 Thorn Electrical Ind Ltd Micro-wave heating apparatus
FR2327700A1 (fr) * 1975-10-09 1977-05-06 Meisel Nicolas Four tunnel a micro-ondes pour le traitement en continu de produits alimentaires
US4492839A (en) * 1976-05-19 1985-01-08 Smith Donald P Thermal treatment apparatus
US4176267A (en) * 1978-05-12 1979-11-27 Armstrong Cork Company Microwave energy trap
FR2500707A1 (fr) * 1981-02-20 1982-08-27 Electricite De France Dispositif de traitement de materiaux par hyper-frequences a elements modulaires
FR2521810A1 (fr) * 1982-02-16 1983-08-19 Technics Lambda Internal Installation pour le traitement thermique ou thermochimique en continu, par micro-ondes de matieres au moins en partie polaires
DE3405542A1 (de) * 1984-02-16 1985-09-05 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Mikrowellendurchlaufofen
US4570045A (en) * 1984-03-08 1986-02-11 Jeppson Morris R Conveyorized microwave heating chamber with dielectric wall structure
US4687895A (en) * 1984-07-30 1987-08-18 Superwave Technology, Inc. Conveyorized microwave heating system
DE3806816A1 (de) * 1987-04-15 1988-11-03 Berstorff Gmbh Masch Hermann Vorrichtung zum gleichmaessigen und schnellen erwaermen, pasteurisieren oder sterilisieren von lebensmitteln oder dergleichen
DE8816056U1 (de) * 1988-12-24 1989-02-23 Paul Troester Maschinenfabrik, 3000 Hannover Vorrichtung zur Behandlung von Gegenständen mit UHF-Energie

Also Published As

Publication number Publication date
US5049362A (en) 1991-09-17
JPH02267886A (ja) 1990-11-01
EP0375999A3 (de) 1991-08-07
ES2067522T3 (es) 1995-04-01
DE3843904C2 (enExample) 1990-10-04
EP0375999A2 (de) 1990-07-04
DE3843904A1 (de) 1990-06-28
DD286415A5 (de) 1991-01-24

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