EP0563237A1 - Tiefkühlbarer elektrischer hohlleiter und verfahren zu seiner anwendung. - Google Patents
Tiefkühlbarer elektrischer hohlleiter und verfahren zu seiner anwendung.Info
- Publication number
- EP0563237A1 EP0563237A1 EP92902604A EP92902604A EP0563237A1 EP 0563237 A1 EP0563237 A1 EP 0563237A1 EP 92902604 A EP92902604 A EP 92902604A EP 92902604 A EP92902604 A EP 92902604A EP 0563237 A1 EP0563237 A1 EP 0563237A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- waveguide
- gas
- waveguide according
- conductor
- hose element
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
- F02G1/053—Component parts or details
- F02G1/055—Heaters or coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
-
- 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
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
- H05B6/42—Cooling of coils
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2254/00—Heat inputs
- F02G2254/45—Heat inputs by electric heating
Definitions
- the invention relates to a freezable electrical waveguide with a connection for introducing cryogenic gases in the liquid or gaseous phase and an outlet for this. It also relates to a method for using such a waveguide.
- the invention is based on the object of avoiding the disadvantages of the aforementioned waveguides and methods and of creating a waveguide over the entire length of which a uniform low-temperature distribution can be ensured. This should also lead to an economical, effective cooling of the waveguide with a simple structure. Furthermore, methods for using such a waveguide according to the invention are to be specified.
- This object is achieved according to the invention in a waveguide of the type mentioned at the outset by arranging at least one hose element in the waveguide, connecting it to a gas connection and providing perforations for the gases to exit.
- the so fused hose element or the hose elements (5:24) bring about the desired uniform distribution of the coolant introduced in the gaseous or liquid phase and thus uniform cooling of the waveguide. This reliably prevents annoying temperature jumps on the conductor.
- Such waveguides are generally suitable for carrying current wherever work is carried out with high currents.
- the waveguide can have a round or angular cross section.
- the hose element according to the invention can be designed such that it passes through the entire waveguide and is connected at one end to a gas connection and is shut off at the other end.
- two tube elements each starting from one end of the waveguide, the added lengths of which are adapted to the length of the waveguide and which are each connected to a gas connection. It is also possible to work with only one hose element which extends through the entire waveguide and is connected to a gas connection at both ends.
- the perforations of the hose elements may help that the perforations of the hose elements have a larger cross section with increasing distance from the gas connection and / or that the perforations of the hose elements have a smaller distance from one another with increasing distance from the gas connection .
- the waveguide according to the invention can also be designed such that the outer diameter of the hose element is smaller than the inner diameter of the waveguide. This results in a distance between the outer surface of the visual immersion elements and the inner surface of the waveguide. This promotes an even distribution of the coolant.
- the distance between the mentioned surfaces can be requested by means of pitch cams.
- the waveguide according to the invention can also be designed so that it has a wavy profile in cross section. In this way, channels run in the longitudinal direction of the waveguide for guiding and distributing the coolant emerging from a hose element.
- the waveguide according to the invention can also be designed in such a way that it has passages in its wall for the gas to escape. This results in a guidance of the Kunimitteis that promotes even distribution.
- Letters can be designed as passage locators, which are specifically provided in the wall of the honing conductor, or they can result in between cable strands or veins if the waveguide is composed of such.
- the waveguide according to the invention can also be designed in such a way that it is provided with a jacket which collects and discharges the gas emerging from the waveguide. In this way, the cooling of the waveguide can also be promoted from the outside.
- the gas collected in the jacket can be discharged in the desired manner in each case or be used for a further purpose.
- the honing conductor according to the invention can also be designed such that the waveguide as a whole is arranged in a housing which collects and discharges the gas emerging from the waveguide. It may be expedient to place the entirety of the waveguide, however it may be shaped, in a housing instead of a sheathing of the conductor and to collect the gas escaping from the waveguide and to carry it on in the desired manner.
- the cryogenic gas also causes the honing conductor to be cooled externally.
- the waveguide according to the invention can also be designed in such a way that a recooling device is provided for the gas escaping from the jacket or the casing. This reduces the gas requirement.
- the waveguide according to the invention can be designed as a coil: it can, however, also be undercut in the grooves of yokes arranged around a melting pot.
- the use of the waveguide according to the invention as an induction coil for induction furnaces for heating, warming or melting metallic material is vorqesenen.
- the honing conductor according to the invention can be used in a wide variety of applications for generating electrical magnetic fields. It can be used, for example, in particle accelerators, magnetic resonance tomographs, in magnetohydrodynamics, in plasma electricity, in nuclear fusion reactors and in the construction of magnets.
- the waveguide can be operated in such a way that liquid nitrogen or liquid helium is fed into a circuit, for cooling purposes, to the tube element, for cooling.
- Such a cycle management reduces the cost of the coolant.
- the waveguide according to the invention can also be operated in such a way that liquid nitrogen or liquid helium is fed to the visual element from a liquid gas container. This requires a relatively small amount of construction. Furthermore, the waveguide according to the invention can be used in such a way that a pressure-liquefied gas in the circuit is fed to the hose element for cooling, the use of Freon and Amoma ⁇ in particular being considered.
- FIG. 1 shows an embodiment of the waveguide according to the invention as an induction coil with a perforated tubular element and a sheathing surrounding the waveguide.
- 2 shows an embodiment similar to that of FIG. in which the waveguide formed as an induction is subordinate overall in a Manteige housing.
- 3 shows a section through a crucible running normal to the acne with surrounding yokes. in which grooves are provided for receiving the waveguide,
- F ⁇ g.1 shows an eie ⁇ t ⁇ scnen shaped waveguide 1 to an induction coil with a lower end 2 and an upper end 3. At the two ends 2, 3, electrical connections 4 are provided.
- a hose element 5 which consists of polytetrafluoroethylene (PTFE) and whose outer diameter is smaller than the inner diameter of the waveguide 1 provided with passages 6a.
- the hose element 5 is provided with fine perforations 6 within the waveguide 1.
- the two ends of the hose element 5 are connected to a metering device 7, which is also connected to a gas container, not shown.
- the waveguide 1 is seated in a tubular jacket 8, which leaves an annular gap to the waveguide 1 free.
- the casing 8 is placed at both ends of a connector 9, a connector 10 which can be connected via connections 11 to a gas line, not shown.
- a connector 12 is also shown, which can be connected to the interior of the casing 6 on the one hand and the gas line on the other.
- gas in the liquid or gaseous phase preferably nitrogen in the liquid phase
- gas in the liquid or gaseous phase is simultaneously introduced via the ends of the suction tube element 5 directs. It then exits through the perforations in the honing conductor 1 and finally arrives in the sheathing 8.
- Intensive cooling of the waveguide 1 takes place from the inside, which is supported by the gas that has entered the sheathing 8.
- the coolant which is then in gaseous form, cools the connected, associated elements in addition to the conductor.
- the gas then finally passes through a gas line to the outside or to a cooler, not shown, which can be a gas cold condenser.
- FIG. 2 differs from that according to FIG. 1 essentially only in that the induction coil formed by the waveguide 1 is accommodated overall in a jacket 12 which has a connection 13 for the discharge of the gas. Electrical connections 4 are provided at the ends of the waveguide 1.
- a connector 14 sits on each end of the waveguide 1, which seals the cavity of the waveguide 1, but allows the ends of the hose element 5 to exit, as is also the case for the connector 10 of the design according to FIG. 1.
- FIG. 3 shows a crucible 15 which is surrounded by an insulating film 16.
- Yokes 17 are arranged in a basket-like manner as a support corset around the crucible 15. These yokes 17 are provided on the side facing the crucible 15 with grooves 18 in which there is a berfori erter waveguide 19 in which a hose element 5 is seated in the manner described above.
- the waveguide 19 is embedded in a permeable filler 20.
- the yokes 17 run parallel to the axis of the crucible 15.
- the grooves 18 and the waveguides 19 located therein accordingly run with the integrated scanning elements 5. These are each connected at their lower end to a ring line (not shown), to which the individual hose elements 5 are cryogenic Gas is supplied in the liquid or gaseous phase. This gas can after the exit from the waveguide 19 at the upper end of the grooves 18 can be absorbed by means of a discharge connection 21.
- 4 shows a cross section through a waveguide 22 which has a corrugated design. This embodiment ensures that there are inevitably channel-shaped free spaces between a hose element and the waveguide 22 and between this waveguide and a sheathing. in which the gas can flow in the liquid or gaseous phase.
- Fig.5 shows a waveguide 23, which is made of strands, filaments or wires, which form an overall permeable structure. This waveguide 23 therefore does not require any special through-holes for the gas to exit the waveguide 23.
- a hose element 24 can be used which lies directly on the inner surface of the waveguide 23.
- the perforations of the waveguide 1 can have different passage cross sections and distances from one another.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Induction Heating (AREA)
- Furnace Details (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Cookers (AREA)
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4041603 | 1990-12-22 | ||
DE19904041603 DE4041603A1 (de) | 1990-10-09 | 1990-12-22 | Verfahren und vorrichtung zum tiefkuehlen elektrischer hohlleiter stromdurchflossener spulen |
DE4109818 | 1991-03-26 | ||
DE4109818A DE4109818A1 (de) | 1990-12-22 | 1991-03-26 | Verfahren und vorrichtung zum tiefkuehlen elektrischer hohlleiter stromdurchflossener spulen |
PCT/DE1991/000992 WO1992011647A1 (de) | 1990-12-22 | 1991-12-18 | Tiefkühlbarer elektrischer hohlleiter und verfahren zu seiner anwendung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0563237A1 true EP0563237A1 (de) | 1993-10-06 |
EP0563237B1 EP0563237B1 (de) | 1995-04-19 |
Family
ID=25899758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92902604A Expired - Lifetime EP0563237B1 (de) | 1990-12-22 | 1991-12-18 | Tiefkühlbarer elektrischer hohlleiter |
Country Status (6)
Country | Link |
---|---|
US (1) | US5391863A (de) |
EP (1) | EP0563237B1 (de) |
JP (1) | JPH06504401A (de) |
AT (1) | ATE121556T1 (de) |
DE (2) | DE4109818A1 (de) |
WO (1) | WO1992011647A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0765592B1 (de) * | 1994-06-13 | 1998-04-22 | Otto Junker GmbH | Verlustarme induktionsspule zum erwärmen und/oder schmelzen von metallischem gut |
US6043472A (en) | 1996-08-28 | 2000-03-28 | Didier-Werke Ag | Assembly of tapping device and inductor therefor |
CA2181215A1 (en) * | 1995-08-28 | 1997-03-01 | Raimund Bruckner | Method of operating an inductor and inductor for carrying out the method |
DE19807099C2 (de) * | 1998-02-20 | 2000-02-17 | G H Induction Deutschland Indu | Induktive Erwärmung von Metallen |
NO308980B1 (no) | 1999-11-11 | 2000-11-20 | Sintef Energiforskning As | Anordning for induksjonsoppvarming |
FR2887739B1 (fr) * | 2005-06-22 | 2007-08-31 | Roctool Soc Par Actions Simpli | Dispositif de chauffage par induction et procede de fabrication de pieces a l'aide d'un tel dispositif |
JP5634756B2 (ja) * | 2010-06-08 | 2014-12-03 | 中部電力株式会社 | 防爆構造誘導加熱装置 |
DE102015117508A1 (de) * | 2015-10-15 | 2017-04-20 | Phoenix Contact E-Mobility Gmbh | Elektrisches Kabel mit einer Fluidleitung zum Kühlen |
DE102015120048A1 (de) * | 2015-11-19 | 2017-05-24 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Elektrische Leitungsanordnung |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US630501A (en) * | 1898-12-12 | 1899-08-08 | Edwin T Greenfield | Metallic conduit for electric wires. |
US2277223A (en) * | 1941-04-26 | 1942-03-24 | Induction Heating Corp | Electric induction furnace |
DE1167979B (de) * | 1960-11-01 | 1964-04-16 | Licentia Gmbh | Wasseranschluss fuer einen aus einer freitragenden, mit Harz impraegnierten Wicklunghergestellten und mit Kuehlkanaelen versehenen Spulenkoerper |
SE318944B (de) * | 1967-07-12 | 1969-12-22 | Asea Ab | |
DE2011217A1 (de) * | 1969-03-19 | 1970-10-01 | General Electric Company, Schenectady, N.Y. (V.St.A.) | Flexibles Tiefsttemperatur-Kabel |
FR2122741A5 (de) * | 1971-01-21 | 1972-09-01 | Comp Generale Electricite | |
SU748918A1 (ru) * | 1977-12-26 | 1980-07-15 | Московский Ордена Ленина Энергетический Институт | Устройство дл индукционного нагрева |
US4241233A (en) * | 1978-07-26 | 1980-12-23 | Electric Power Research Institute, Inc. | Method of forming dielectric material for electrical cable and resulting structure |
DE3927324A1 (de) * | 1989-08-18 | 1991-02-21 | Leybold Ag | Kuehlvorrichtung fuer elektrische schaltungsanordnungen |
-
1991
- 1991-03-26 DE DE4109818A patent/DE4109818A1/de not_active Ceased
- 1991-12-18 US US08/081,275 patent/US5391863A/en not_active Expired - Fee Related
- 1991-12-18 AT AT92902604T patent/ATE121556T1/de not_active IP Right Cessation
- 1991-12-18 JP JP4502431A patent/JPH06504401A/ja active Pending
- 1991-12-18 WO PCT/DE1991/000992 patent/WO1992011647A1/de active IP Right Grant
- 1991-12-18 EP EP92902604A patent/EP0563237B1/de not_active Expired - Lifetime
- 1991-12-18 DE DE59105280T patent/DE59105280D1/de not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9211647A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59105280D1 (de) | 1995-05-24 |
ATE121556T1 (de) | 1995-05-15 |
EP0563237B1 (de) | 1995-04-19 |
DE4109818A1 (de) | 1991-11-14 |
WO1992011647A1 (de) | 1992-07-09 |
JPH06504401A (ja) | 1994-05-19 |
US5391863A (en) | 1995-02-21 |
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