FR2565059A1 - Device for heating a fluid by induction - Google Patents
Device for heating a fluid by induction Download PDFInfo
- Publication number
- FR2565059A1 FR2565059A1 FR8408621A FR8408621A FR2565059A1 FR 2565059 A1 FR2565059 A1 FR 2565059A1 FR 8408621 A FR8408621 A FR 8408621A FR 8408621 A FR8408621 A FR 8408621A FR 2565059 A1 FR2565059 A1 FR 2565059A1
- Authority
- FR
- France
- Prior art keywords
- fluid
- heating
- induction
- transformer
- coil
- 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
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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
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
- H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Induction Heating (AREA)
Abstract
Description
Dispositif de chauffage d'un fluide par induction
La présente invention a pour objet un dispositif de chauffage d'un fluide par induction
Ce dispositif est caractérisé en ce qu'il comporte un transformateur dont le secondaire est constitué par un serpentin en court-circuit interposé sur le circuit du fluide.Device for heating a fluid by induction
The present invention relates to a device for heating a fluid by induction
This device is characterized in that it comprises a transformer, the secondary of which is constituted by a short-circuit coil interposed on the fluid circuit.
Lorsque le transformateur est sous tension, l'énergie Eleis trique fournie au secondaire est transformée en énergie thermique par effet Joule, le secondaire étant en court-circuit, et cette énergie assure le chauffage du liquide qui traverse le serpentin. When the transformer is energized, the electrical energy supplied to the secondary is transformed into thermal energy by the Joule effect, the secondary being in short circuit, and this energy ensures the heating of the liquid which crosses the coil.
Le dispositif de chauffage selon l'invention peut être utilisé, par exemple, pour la production d'eau chaude, comme générateur de vapeur, ou bien pour réaliser des réactions thermiques le chauffage s'accompagnant ou non d'un changement de phases. The heating device according to the invention can be used, for example, for the production of hot water, as a steam generator, or else for carrying out thermal reactions, the heating being accompanied or not by a change of phases.
Il présente les avantages d'assurer un chauffage pratiquement instantané et une diffusion thermique uniforme. I1 présente une faible inertie thermique et a un excellent rendement énergétique de l'ordre de 0,95. I1 est robuste, propre et facile à automatiser. I1 peut être utilisé pour fournir des puissances de chauffage aussi bien faibles, de l'ordre de 8000 KCal, qu'levées de l'ordre de 2.450.000 KCal. It has the advantages of ensuring practically instantaneous heating and uniform thermal diffusion. It has a low thermal inertia and has an excellent energy efficiency of the order of 0.95. It is robust, clean and easy to automate. It can be used to supply heating powers both low, of the order of 8000 KCal, and high, of the order of 2.450.000 KCal.
On a décrit ci-après, à titre d'exemple non limitatif, un mode de réalisation du dispositif de chauffage selon l'invention, avec référence à la Figure unique du dessin annexé qui est un schéma du dispositif. An embodiment of the heating device according to the invention has been described below, by way of non-limiting example, with reference to the single figure of the appended drawing which is a diagram of the device.
Tel qu'il est représenté au dessin, le dispositif de chauffage selon l'invention, qui est un générateur de vapeur, comprend un transformateur 1 dont l'enroulement primaire 2 est connecté à une source d'alimentation 3 par l'intermédiaire d'un interrupteur manuel 4 et d'un interrupteur piloté 5 à thyristors. As shown in the drawing, the heating device according to the invention, which is a steam generator, comprises a transformer 1, the primary winding 2 of which is connected to a power source 3 by means of a manual switch 4 and a piloted switch 5 with thyristors.
Le secondaire 6 du transformateur 1 est constitué par un serpentin métallique relié à un conduit d'arrivée de fluide 7 et à un conduit de départ de fluide 8. Les deux conduits 7 et 8 sont reliés électriquement l'un à l'autre. Cette liaison pourrait être constituée par un conducteur reliant des manchons enserrant les deux conduits; dans l'exemple représenté, les deux conduits présentent des parties 7a et 8a au contactl'une.de l'autre, et soudées l'une à l'autre, comme indiqué en 9. The secondary 6 of the transformer 1 is constituted by a metal coil connected to a fluid inlet duct 7 and to a fluid outlet duct 8. The two ducts 7 and 8 are electrically connected to each other. This connection could be constituted by a conductor connecting sleeves enclosing the two conduits; in the example shown, the two conduits have parts 7a and 8a in contact with one another, and welded to one another, as indicated in 9.
Le conduit 8 est muni d'un capteur de température 10 qui commande l'interrupteur 5. Sur le conduit d'alimentation 7 est interposée une vanne électrique 11 commandée par un contrleur de débit 12 placé sur le conduit 8. The conduit 8 is provided with a temperature sensor 10 which controls the switch 5. On the supply conduit 7 is interposed an electric valve 11 controlled by a flow controller 12 placed on the conduit 8.
Lorsque le transformateur 1 est mis sous tension par fermeture de l'interrupteur 4, le serpentin constituant l'enroulement secondaire se trouve en court-circuit de sorte que le courant secondaire induit chauffe par effet Joule le fluide qui arrive par le conduit 7 et s'en va par le conduit 8. When the transformer 1 is energized by closing the switch 4, the coil constituting the secondary winding is in short circuit so that the induced secondary current heats by Joule effect the fluid which arrives by the conduit 7 and s 'goes through line 8.
A titre d'exemple, si le nombre de tours du serpentin 6 est tel qu'il se développe une tension de 2 voltsà ses extrémités et si ce serpentin à une résistance de 0,02 ohm, il sera parcouru par un courant de 100 ampères et fourhira une puissance de chauffage de 200 watts. For example, if the number of turns of the coil 6 is such that it develops a voltage of 2 volts at its ends and if this coil has a resistance of 0.02 ohm, it will be traversed by a current of 100 amps and bake a heating power of 200 watts.
Si la température du fluide devient trop élevée, le capteur 10 provoque l'ouverture de l'interrupteur 5 et le referme lorsque la température s'est suffisamment abaissée. Si le débit du fluide chauffé devient trop important, ce qui empoche le fluide d'être suffisamment chauffé, le contrcleur de débit 12 agit sur la vanne 11 pour réguler ce débit. If the temperature of the fluid becomes too high, the sensor 10 causes the switch 5 to open and to close again when the temperature has dropped sufficiently. If the flow rate of the heated fluid becomes too high, which prevents the fluid from being sufficiently heated, the flow controller 12 acts on the valve 11 to regulate this flow rate.
I1 va de soi que la présente invention ne doit pas être considérée comme limitée au mode de réalisation décrit et représenté, mais en couvre, au contraire, toutes les variantes. It goes without saying that the present invention should not be considered as limited to the embodiment described and shown, but on the contrary covers all variants thereof.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8408621A FR2565059B3 (en) | 1984-05-25 | 1984-05-25 | DEVICE FOR HEATING A FLUID BY INDUCTION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8408621A FR2565059B3 (en) | 1984-05-25 | 1984-05-25 | DEVICE FOR HEATING A FLUID BY INDUCTION |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2565059A1 true FR2565059A1 (en) | 1985-11-29 |
| FR2565059B3 FR2565059B3 (en) | 1986-09-05 |
Family
ID=9304607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8408621A Expired FR2565059B3 (en) | 1984-05-25 | 1984-05-25 | DEVICE FOR HEATING A FLUID BY INDUCTION |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2565059B3 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2654888A1 (en) * | 1989-11-17 | 1991-05-24 | Lane Patrick | Hot gas, vapour and fluid generator with thermo-induction |
| DE19527827A1 (en) * | 1995-07-29 | 1997-01-30 | Kuka Schweissanlagen & Roboter | Generating electrical heat e.g. for heating welded steel axles - involves using medium- or high-frequency AC heating current delivered to load by secondary side of transformer and generated on primary side by supply current rectification and controlled static inversion |
| US5990465A (en) * | 1995-03-27 | 1999-11-23 | Omron Corporation | Electromagnetic induction-heated fluid energy conversion processing appliance |
-
1984
- 1984-05-25 FR FR8408621A patent/FR2565059B3/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2654888A1 (en) * | 1989-11-17 | 1991-05-24 | Lane Patrick | Hot gas, vapour and fluid generator with thermo-induction |
| US5990465A (en) * | 1995-03-27 | 1999-11-23 | Omron Corporation | Electromagnetic induction-heated fluid energy conversion processing appliance |
| DE19527827A1 (en) * | 1995-07-29 | 1997-01-30 | Kuka Schweissanlagen & Roboter | Generating electrical heat e.g. for heating welded steel axles - involves using medium- or high-frequency AC heating current delivered to load by secondary side of transformer and generated on primary side by supply current rectification and controlled static inversion |
| DE19527827C2 (en) * | 1995-07-29 | 1998-02-12 | Kuka Schweissanlagen & Roboter | Method and device for generating electrical heat |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2565059B3 (en) | 1986-09-05 |
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