WO1997006652A1 - Dispositif de chauffage par induction electromagnetique et son fonctionnement - Google Patents

Dispositif de chauffage par induction electromagnetique et son fonctionnement Download PDF

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Publication number
WO1997006652A1
WO1997006652A1 PCT/JP1996/002166 JP9602166W WO9706652A1 WO 1997006652 A1 WO1997006652 A1 WO 1997006652A1 JP 9602166 W JP9602166 W JP 9602166W WO 9706652 A1 WO9706652 A1 WO 9706652A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
silicon nitride
electromagnetic induction
fluid
heating element
Prior art date
Application number
PCT/JP1996/002166
Other languages
English (en)
Japanese (ja)
Inventor
Yasuzo Kawamura
Yoshitaka Uchihori
Original Assignee
Kabushiki Kaisha Seta Giken
Omron Corporation
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 to KR1019970700172A priority Critical patent/KR100227490B1/ko
Application filed by Kabushiki Kaisha Seta Giken, Omron Corporation filed Critical Kabushiki Kaisha Seta Giken
Priority to EP96925966A priority patent/EP0873045A4/fr
Priority to JP50830697A priority patent/JP3628705B2/ja
Priority to AU66296/96A priority patent/AU6629696A/en
Publication of WO1997006652A1 publication Critical patent/WO1997006652A1/fr

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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
    • 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

Definitions

  • Electromagnetic induction heating device and its operation method
  • the present invention relates to an electromagnetic induction heating apparatus excellent in responsiveness, in which a heating element immersed in a fluid such as liquid or gas is heated by electromagnetic induction heating, and the fluid is heated by direct heat transfer, and an operation method thereof. .
  • a heat exchanger When heating a fluid such as a liquid or a gas, a heat exchanger is generally used. For example, a power supply is supplied to a series heater to heat the heat medium oil, and a heat exchanger causes heat exchange between the heat medium and the fluid.
  • a pipe through which a fluid passes is made of a non-magnetic material such as an insulator, and a heating element in which the fluid contained in the pipe is immersed.
  • An electromagnetic induction heating device for direct heating which heats an object by electromagnetic induction, has been proposed. According to the electromagnetic induction heating device by this direct heating, the heat transfer area from the heating element to the fluid can be improved to about 90% by increasing the heat transfer area of the heating element in which the fluid is immersed. Responsiveness can be improved.
  • the electromagnetic induction heating device proposed in Japanese Patent Application Laid-Open No. 3-998286 is small and capable of local heating, local thermal stress is generated in the pipe housing the heating element. easy.
  • the pipe that houses the heating element must be made of a non-magnetic material, and must be made of ceramics in consideration of heat resistance and chemical resistance. Since pipes are used, they have a problem that they are easily broken compared to metal pipes, and that operating conditions for high-temperature heating and instantaneous heating are easily restricted.
  • the present invention has been made in order to solve this problem, and an object of the present invention is to provide an electromagnetic induction heating device capable of preventing breakage of a pipe during high-temperature heating or instantaneous heating, and an operation method thereof. Disclosure of the invention
  • An electromagnetic induction heating apparatus that solves the above-mentioned problem includes a pipe made of a non-magnetic material through which a fluid flows in and out, a coil wound around the pipe, and a coil housed in the pipe and heated by electromagnetic induction by the coil.
  • the pipe is a molded product of silicon nitride.
  • the heat-resistant impact temperature of the silicon nitride exceeds 600 ° C.
  • Silicon nitride (Si 3 N 4 ) is a type of non-oxide ceramic, is a non-magnetic material, and has strong corrosion resistance to acids and alkaline metals.
  • thermal shock resistance can be obtained by controlling the manufacturing process of molding, sintering, and finishing, and by controlling the composition as usual, to obtain a high thermal shock temperature of 400 ° C or higher and 80 (TC or lower). Furthermore, if the production process and composition are carefully controlled, a high thermal shock temperature of 600 ° C. or more and 800 ° C. or less can be obtained. The thermal shock temperature is about 3 times higher than that, but if the manufacturing process and composition are specially adjusted, the thermal shock temperature exceeding 800 ° C or 880 ° C can be obtained, It can withstand high temperature heating and instantaneous heating.
  • the thermal shock temperature is defined as 3 X 4 X 3 specified in JISR 1601. Using a 5 mm test bead, heating at a specified temperature for 15 minutes, then throwing it into water at 20 to 25 ° C, and there was no deterioration in bending strength after water injection compared to before heating Means the maximum predetermined temperature.
  • silicon nitride Si 3 N 4
  • metal pipes and the like metal pipes and the like
  • thermal fusion it is difficult to form a desired shape by processing, and a flange portion is integrally formed at both ends of the silicon nitride pipe, and a support portion for supporting the heating element is integrally formed in the silicon nitride pipe. Then it costs money.
  • the electromagnetic induction heating device of the present invention when the electromagnetic induction heating device of the present invention is installed in the middle of a metal pipe line such as a chemical plant, for example, in addition to the above configuration, the electromagnetic induction heating device engages with the end of the above-mentioned silicon nitride pipe and has a diameter.
  • Flange members forming flanges projecting outward in both directions at both ends of the silicon nitride pipe; a metal pipe having a flange connected to both ends of the silicon nitride pipe; and both ends of the silicon nitride pipe
  • a fastening member for fastening each of the flange members to the flange of the metal pipe.
  • At least one of the metal pipes has an elastic portion which expands and contracts at least in the axial direction when the axis of the silicon nitride pipe is extended.
  • the metal pipe has a support member for supporting the heating element in the pipe from the metal pipe.
  • a flange member engaging with an end of the silicon nitride pipe ⁇ a supporting member for supporting the heating element from the metal pipe into the silicon nitride pipe includes a flange portion ⁇ This eliminates the need to form a body support portion, and allows the shape of the silicon nitride pipe to be extremely simple. Therefore, it is easy to form the silicon nitride pipe, and the manufacturing cost is reduced. Further, the flange member engaging with the end of the silicon nitride pipe facilitates joining of the metal pipe and the silicon nitride pipe. You.
  • the expansion and contraction portion provided on at least one of the metal pipes appropriately releases the thermal expansion of the silicon nitride pipe in the axial direction, thereby preventing damage to the silicon nitride pipe due to thermal expansion.
  • the method of operating the electromagnetic induction heating apparatus may further include: a pipe made of a non-magnetic material through which a fluid flows in and out; a coil wound around the pipe; Using an electromagnetic induction heating device in which the pipe is a molded product of silicon nitride, before the fluid flows, the pipe is immersed in the fluid, and the pipe generates the heat.
  • This is an operation method characterized by flowing a fluid after preheating the body by electromagnetic induction.
  • the above-mentioned silicon nitride having a thermal shock temperature exceeding 600 ° C. is used.
  • a material having a thermal shock temperature exceeding 800 ° C. is used. Even if the pipe is rapidly cooled by flowing the fluid before heating suddenly into the heated pipe due to the preheating of the heating element, it can withstand thermal shock because the thermal shock resistance temperature of the pipe exceeds 600 ° C.
  • the operation method of the electromagnetic induction heating device of the present invention is suitable when the fluid is a gas. Since the heat capacity of gas is small, it can be rapidly heated from room temperature to high temperature. In this case, even if the heating element is preheated to a high temperature and then a gas at room temperature is allowed to flow through the pipe, the pipe is made of silicon nitride and has a high thermal shock temperature, so the high-temperature gas can be flown from the beginning.
  • the electromagnetic induction heating device of the present invention uses silicon nitride having excellent thermal shock resistance as the material of the pipe, it performs high-temperature heating and instantaneous heating by utilizing the characteristic of high responsiveness. Also, there is an effect that heating can be performed over a wide range of conditions without limiting operating conditions due to thermal shock.
  • the operation method of the electromagnetic induction heating device according to the present invention makes use of the improvement of the thermal shock resistance to perform a zero start in which a heating element is preheated in advance, a fluid is flown, and a fluid of a predetermined temperature is obtained from the beginning of the flow. It has the effect of being able to. Further, the operation method of the electromagnetic induction heating device of the present invention has an effect that the x-start can be applied particularly when heating a gas that requires high-temperature heating.
  • FIG. 1 is a longitudinal sectional view of an electromagnetic induction heating apparatus according to one embodiment of the present invention.
  • FIGS. 2 (a) and 2 (b) show an electromagnetic induction heating apparatus according to one embodiment of the present invention.
  • FIG. 2 (a) is a top view showing the structure of the heating element
  • FIG. 2 (b) is a perspective view showing the structure of the heating element
  • FIG. FIG. 7 is a longitudinal sectional view of an electromagnetic induction heating device according to another embodiment of the present invention.
  • FIG. 1 is a longitudinal sectional view of an electromagnetic induction heating device
  • FIGS. 2 (a) and 2 (b) are structural diagrams of a heating element used in the electromagnetic induction heating device.
  • the electromagnetic induction heating device 1 is mainly composed of flange members 2 and 3, a silicon nitride pipe 6, a coil 7, and a heating element 8.
  • the fluid 14 flows upward from the lower side to the upper side in FIG. 1, and is installed in the middle of metal pipelines 101 and 102 such as a chemical brand.
  • the power unit 11 is connected to the coil 7 of the electromagnetic induction heating device 1 or the coils 7 of the plurality of electromagnetic induction heating devices 1, and the control unit 12 is connected to the power unit 11.
  • the temperature sensor 13 is connected to the control unit 12. The heating system is subsequently configured.
  • the silicon nitride pipe 6 is manufactured integrally so that the flanges 6b and 6c are located at both ends of the body 6a.
  • the production process consists of molding, sintering, processing, etc.
  • the molding process is injection molding, slip casting, etc.
  • the sintering process is a nitrogen gas that can use high temperatures while suppressing decomposition of silicon nitride. It is a sintering method under pressure, etc., and the machining process is electric discharge machining, laser machining, or the like. That is, it is formed into a pipe shape as shown in the figure by injection molding, hardened by sintering, and subjected to processing such as a contact surface by electric discharge machining, etc. to obtain a predetermined shape.
  • the nitriding is performed so that the thermal shock resistance of the silicon nitride pipe 6 is not less than 400 ° C. and not more than 800 ° C., preferably not less than 600 ° C. and not more than 800 ° C. Controls the composition and manufacturing process of silicon.
  • the body 6a is manufactured to have a predetermined inner diameter and a predetermined thickness.
  • the outer circumference of the flanges 6 b and 6 c at both ends is minimized so that the contact surfaces 6 d and 6 e of the packing 5 and the hooks 6 f and 6 g for the flange members 2 and 3 are formed. Manufactured in diameter.
  • the flange members 2 and 3 engage with the ends of the gay nitride pipe 6 to form radially protruding flanges at both ends of the silicone nitride pipe 6.
  • the structure is a structure that can be divided into two parts. For example, a semicircular member is hinged so that it can be opened and closed, and a fixing means that can fix the semicircular member in a closed state is provided. Further, the flange members 2 and 3 are provided with holes for passing bolts at equal circumferential positions, and the bolts are passed in parallel with the axial direction of the silicon nitride pipe 6 while being loosely fitted on the outer periphery of the body 6a. be able to.
  • the flange members 2 and 3 embrace the flanges 6 b and 6 c of the silicon nitride pipe 6, and are bolted to the flanges 103 and 104 at the ends of the metal pipe lines 101 and 102. It is fastened by fastening members such as 9 and nut 10. Then, the contact surfaces 6 d, 6 e of the flanges 6 b, 6 c pass through the packings 4, 5. The flanges 103 and 104 come into close contact with the contact surface, and both sealing and joining are performed. Thus, it is difficult to connect silicon nitride (Si 3 N 4 ) to metal pipes by thermal fusion.
  • the flange members 2 and 3 that engage with the ends of the silicon nitride pipe facilitate joining of the metal pipe and the silicon nitride pipe.
  • the material of the flange members 2 and 3 is made of an austenitic stainless steel such as nonmagnetic SUS316 so as to be hardly affected by the magnetic flux formed by the coil 7.
  • a temperature sensor 13 can be attached to the metal pipe line 102 located on the outflow side of the fluid 14 via a socket.
  • a heating element 8 is housed in the silicon nitride pipe 6, and a coil 7 is wound around the outer periphery of the silicon nitride pipe 6 and at a position facing the heating element 8.
  • the coil 7 has a copper loss as small as possible, and is made of a twisted litz wire, or a copper tube such as a round tube, a semicircular tube, and an elliptic tube.
  • the heating element 8 has a magnetic permeability enough to make it easy for electric power to enter, has a good heat exchange with the fluid 14, and has corrosion resistance to the fluid 14.
  • a martensite stainless steel such as SUS447J1 is used. Further, the detailed structure of the heating element 8 will be described with reference to FIG. FIG. 2A is a top view showing the structure of the heating element 8, and FIG. 2B is a perspective view showing the structure of the heating element 8.
  • the heating element 8 is formed by alternately laminating a plate-shaped first sheet material 21 and a corrugated second sheet material 22 so that the first sheet material 21 is located at both ends of the side surface. Is formed in a columnar shape. 2nd sheet material 2 2 wave mountain
  • (Or valleys) 23 are arranged so as to be inclined by an angle ⁇ with respect to the central axis 24, and wave peaks (or valleys) of the second sheet materials 22 adjacent to each other with the first sheet material 21 interposed therebetween. Arranged so that 23 intersect. And the adjacent second sheet At the intersection 25 of the wave peaks (or valleys) 23 in the material 22, the first sheet material 21 and the second sheet material 22 are welded by spot welding and become electrically conductive. ing. Further, a hole 26 for generating a turbulent flow of the fluid 14 is provided on the surface of the second sheet material 22. Instead of or in addition to the holes 26, it is also effective to apply a satin finish to the first sheet material 21 and Z or the second sheet material 22 to make the surface rough.
  • the first sheet material 21 and the second sheet material 22 are arranged substantially parallel to the diameter direction D passing through the central axis 24 of the heating element 8, and are electrically substantially parallel to the diameter D. In the most appropriate direction (the direction across the periphery). Then, the skin effect (a state where only the outer peripheral portion of the heating element 8 is heated) appearing in the electromagnetic induction is broken, and the central portion of the heating element 8 is also heated.
  • the heating element 8 at the beginning of molding has a diameter D so as to form an annular gap Rs between the outer peripheral surface and the inner peripheral surface of the silicon nitride pipe 6. It is loosely fitted so that the axis of the heating element 8 is aligned with the axis of the heating element 8, inserted into the silicon nitride pipe 6, and held by the projection 30 as a holding member.
  • the diameter D of the heating element 8 is determined by the difference between the amount by which the silicon nitride pipe 6 thermally expands in the radial direction and the amount by which the heating element 8 thermally expands in the radial direction when the fluid 14 is heated by the apparatus 1.
  • annular gap R s greater than the thermal expansion difference is provided between the heating element 8 and the silicon nitride pipe 6.
  • the projection 30 as a holding member is provided so as to be divided in the circumferential direction, and fluid from the inflow side flows into the annular gap Rs.
  • a ceramic ring having a large number of holes or notches communicating with the annular gap Rs and having excellent non-magnetic, heat resistance and corrosion resistance may be press-fitted.
  • Reference numeral 35 denotes a ring-shaped stopper, which is made of a non-magnetic, heat-resistant and corrosion-resistant ceramic or the like, and has a silicon nitride pipe 6 from the fluid 14 outflow side.
  • the thermal expansion of the heating element 8 in the axial direction between the heating element 8 and the heating element 8 Is fixed with a gap Vs equal to or slightly smaller than the amount of
  • the ring-shaped stopper 35 is located on the heating element 8 across the annular gap Rs in the radial direction from the outflow side, and engages with the heating element 8 due to the thermal expansion of the heating element 8. Then, the annular gap Rs is closed from the outflow side.
  • the fluid 14 flowing from the metal pipeline 101 to the inflow side of the device 1 flows into the heating element 8 and is heated and flows to the outflow side, and a part of the fluid 14 is Attempts to flow directly from the inflow side or from the heating element 8 into the annular gap R s and flow through the annular gap R s to the inflow side, but the heating element 8 is ring-shaped due to thermal expansion in the axial direction.
  • the outflow side of the annular gap R s is closed to prevent the fluid 14 from flowing directly to the outflow side, so that the fluid from the inflow side flows into the annular gap R s.
  • the flow of the pressure 14 generates a pressure that pushes the flow to the discharge side, and the fluid 14 flowing into the annular gap Rs can flow into the heating element 8 by this pressure.
  • the heating element 8 thermally expands and engages with the ring-shaped tongue 35 to form the ring. Since the fluid 14 flowing out of the annular gap R s can be closed by closing the annular gap R s from the outflow side and flowing into the heating element 8, the fluid 14 can be uniformly heated by the heating element 8. Becomes
  • the silicon nitride pipe 6 is also heated to the same degree as the heating element 8. If the fluid before heating flows into the silicon nitride pipe 6 in this state, the silicon nitride pipe 6 rapidly changes from a high temperature state. Is cooled down and receives thermal shock. However, since the pipe is made of silicon nitride having excellent thermal shock resistance, and its thermal shock resistance is at least 400 ° C and at most 800 ° C, it can withstand thermal shock. it can.
  • the fluid when the fluid is a gas, the fluid may be heated to a high temperature exceeding 600 ° C (sometimes, 800 ° C), and in this case, the degree of thermal shock is increased.
  • a high temperature exceeding 600 ° C (sometimes, 800 ° C)
  • the thermal shock temperature exceeds 880 ° C.
  • the material having such a high thermal shock temperature By using the silicon nitride formed in the pipe, it is possible to withstand thermal shock even if the above-mentioned zero start is repeated.
  • FIG. 1 Parts having the same functions as those in FIG. 1 are denoted by the same reference numerals as those in FIG. 1, and description thereof is omitted.
  • the metal pipe 102 on the fluid outflow side is provided with a telescoping part 40, and the heating element 8 is connected to the metal pipes 10 1 and 10 2 on the fluid inflow and outflow sides by a silicon nitride. That is, first and second support members 42 and 43 for supporting the inside of the pipe 41 are provided. Accordingly, there is no protrusion 30 as a holding member for holding the heating element 8 in the silicon nitride pipe 41 as in the case of the silicon nitride pipe 6 in FIG. 1, and the outer circumferences at both ends are slightly enlarged. It has a very simple shape.
  • the expansion / contraction portion 40 of the metal pipe 102 is used to appropriately release the expansion of the silicon nitride pipe 41 due to heat in the axial direction and prevent the silicon nitride pipe 41 from being damaged by thermal expansion. Expands and contracts in the axial direction. In order to efficiently release the expansion of the silicon nitride pipe 41 due to heat in the axial direction, it is preferable that the expansion and contraction section 40 be provided as close to the silicon nitride pipe 41 as possible. Therefore, in the present embodiment, the elastic portion 40 is provided near the flange 104 near the joint between the silicon nitride pipe 41 and the metal pipe 102.
  • the expansion and contraction section 4 is provided only on the metal pipe 102 on the gas outflow side. Although 0 is provided, it may be provided on both the metal pipe 101 on the gas inflow side and the metal pipe 102 on the gas outflow side in some cases. Further, the expansion and contraction section 40 may be provided only on the metal pipe 101 on the gas inflow side.
  • the expansion and contraction portion 40 is provided inside the metal pipe 102 so as to be in contact with the outer pipe 102 a .102 b of the metal pipe 102 and the inner circumference of the outer pipe 102 a, 102 b.
  • a bellows 40b fixed between the inner pipe 40a and the outer pipes 102a and 102b and enclosing the outer circumference of the inner pipe 40a;
  • a connecting member 40c for connecting the outer tube 102a and the outer tube 102b so that the outer tube 102a can move in the axial direction with respect to the outer tube 102b.
  • the connecting member 40c is a cylindrical body having the outer tubes 102a and 102b inside, and has a plurality of slit portions 50 that are long in the axial direction.
  • the outer tube 102b is inserted and fixed to one end of the connecting member 40c, and the outer tube 102a is inserted to the other end of the connecting member 40c.
  • the pin member 51 that is slidably fitted is fixed to the outer tube 102a.
  • a bellows-like joint pipe which has a fold in the pipe itself and which expands and contracts in the axial direction by the fold may be used. In this case, it is possible to absorb not only the axial expansion but also the axis shift that occurs when the silicon nitride pipe is incorporated into the metal pipeline.
  • the first support member 42 includes a first protruding member 42 a extending from the inner peripheral surface of the metal pipe 102 to the center of the diameter, and an axially extending end from the protruding end of the first protruding member 42 a.
  • a first pillar member 42 extending to the ring stopper 35, and a radius from the ring stopper 35 side of the first pillar member 42b.
  • the first protruding member 42 a of the first support member 42 which comprises a beam member 42 c extending across the ring-shaped stopper 35, is welded into the metal pipe 102. Therefore, it is desirable to use the same material as the metal vibrator 102.
  • first column member 42b of the first support member 42 can be integrally formed with the first projecting member 42a or connected by welding, bonding, bolting, or the like, the same material as the metal pipe, or Although ceramics such as silicon nitride and the like can be used, non-magnetic ceramics are preferable so as not to be affected by the magnetic flux formed by the coil 7.
  • the first support member 42 is positioned and attached so that the beam member 42 c is in contact with the ring stopper 35.
  • the first support member 42 is mounted in the metal pipe 102 by fixing the first protruding member 42a to the inner peripheral surface of the metal pipe 102 by welding or the like. In this way, even if the flow velocity of the fluid flowing in the pipe increases, the position of the ring stopper 35 does not shift, and the position of the heating element 8 in the silicon nitride pipe 41 is maintained. Is kept in a predetermined position.
  • the second support member 43 includes a second protruding member 43a extending from the inner peripheral surface of the metal pipe 101 to the center of the diameter, and an axially extending end of the second protruding member 43a.
  • the second column member 43 b extends to the heating element 8.
  • the first projecting member 42 a and the first column member 42 of the first supporting member 42 are provided. Same as b.
  • the second support member 43 is positioned and attached such that one end of the second column member 43 b is in contact with the heating element 8.
  • the mounting of the second support member 43 into the metal pipe 101 includes the second protrusion member 43a. This is performed by fixing the inner peripheral surface of the metal pipe 101 by welding or the like. By doing so, the heating element 8 can be held at a predetermined position in the silicon nitride pipe 41 together with the first support member. Therefore, the projection 30 as a holding member for holding the heating element 8 like the silicon nitride pipe 6 shown in FIG. 1 is not required.
  • the heating element 8 is supported in the nitrided silicon pipe from the flange members 2 and 3 and the metal pipes 101 and 102 engaged with the ends of the silicon nitride pipe 41.
  • the first and second support members 42.43 eliminate the necessity of forming a flange portion and a support portion of the heating element on the silicon nitride pipe.
  • the shape of the silicon nitride pipe can be made very simple as shown in FIG. 3, so that the formation of the silicon nitride pipe becomes easy and the production cost is reduced.
  • the present invention is most suitable as an electromagnetic induction heating apparatus capable of preventing breakage of a pipe during high-temperature heating or instantaneous heating, and an operating method thereof.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)

Abstract

L'invention concerne un dispositif de chauffage par induction électromagnétique pourvu d'une conduite (6 ou 41) en un matériau non magnétique tel que le nitrure de silicium. Un liquide entre et sort de cette conduite. Un enroulement (7) entoure la conduite en nitrure de silicium (6 ou 41) et un corps chauffant (8) est logé dans cette conduite pour être chauffé par induction électromagnétique, grâce à l'enroulement (7). Des brides (2, 3) saillant radialement sont formées aux deux extrémités de la conduite en nitrure de silicium (6 ou 41) et elles s'engagent avec les portions terminales de cette conduite. Des conduites métalliques (101, 102) ayant des brides (103, 104) viennent contre les deux extrémités de la conduite en nitrure de silicium (6 ou 41). Des éléments de fixation (9, 10) permettent de fixer les brides (2, 3) s'engageant avec les deux extrémités de la conduite en nitrure de silicium (6 ou 41), aux brides (103, 104) de conduites métalliques respectives (101, 102). Le procédé d'utilisation du dispositif consiste à remplir l'intérieur de la conduite avec un fluide avant de faire circuler celui-ci, à préchauffer le corps chauffant à l'intérieur de la conduite par induction électromagnétique et ensuite à faire circuler le fluide.
PCT/JP1996/002166 1995-05-11 1996-07-31 Dispositif de chauffage par induction electromagnetique et son fonctionnement WO1997006652A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019970700172A KR100227490B1 (ko) 1995-05-11 1996-05-10 온도센서 소자와 그것을 가지는 온도센서 및 온도센서 소자의 제조방법
EP96925966A EP0873045A4 (fr) 1995-08-03 1996-07-31 Dispositif de chauffage par induction electromagnetique et son fonctionnement
JP50830697A JP3628705B2 (ja) 1995-08-03 1996-07-31 電磁誘導加熱装置
AU66296/96A AU6629696A (en) 1995-08-03 1996-07-31 Electromagnetic induction heater and operation method therefr

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7/219745 1995-08-03
JP21974595 1995-08-03

Publications (1)

Publication Number Publication Date
WO1997006652A1 true WO1997006652A1 (fr) 1997-02-20

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PCT/JP1996/002166 WO1997006652A1 (fr) 1995-05-11 1996-07-31 Dispositif de chauffage par induction electromagnetique et son fonctionnement

Country Status (6)

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EP (1) EP0873045A4 (fr)
JP (1) JP3628705B2 (fr)
KR (1) KR19990036094A (fr)
CN (1) CN1192318A (fr)
AU (1) AU6629696A (fr)
WO (1) WO1997006652A1 (fr)

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KR100475995B1 (ko) * 2001-06-12 2005-03-10 가부시키가이샤 무라타 세이사쿠쇼 탄성 표면파 필터
CN113242623A (zh) * 2021-05-13 2021-08-10 烟台大学 一种金属电磁感应加热-相变储热的管道式流体升温装置

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US6781100B2 (en) * 2001-06-26 2004-08-24 Husky Injection Molding Systems, Ltd. Method for inductive and resistive heating of an object
KR100762010B1 (ko) * 2006-07-07 2007-09-28 윤국선 유도가열 방식의 온열매트
CN101699108A (zh) * 2009-11-10 2010-04-28 钟秉霖 一种磁能保健水龙头
CN104505799B (zh) * 2014-12-30 2017-09-05 赵钦基 导线端部带低阻插接连接界面的旁站电力线
CN105576317B (zh) * 2016-01-27 2018-06-15 广州宝狮无线供电技术有限公司 程控式电磁感应加热装置及利用此装置处理废电池的方法
CN109595789B (zh) * 2019-02-13 2024-02-06 深圳热鑫能源科技有限公司 一种卧式热水机

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KR100475995B1 (ko) * 2001-06-12 2005-03-10 가부시키가이샤 무라타 세이사쿠쇼 탄성 표면파 필터
CN113242623A (zh) * 2021-05-13 2021-08-10 烟台大学 一种金属电磁感应加热-相变储热的管道式流体升温装置
CN113242623B (zh) * 2021-05-13 2024-04-30 烟台大学 一种金属电磁感应加热-相变储热的管道式流体升温装置

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EP0873045A4 (fr) 1998-12-30
KR19990036094A (ko) 1999-05-25
CN1192318A (zh) 1998-09-02
EP0873045A1 (fr) 1998-10-21
JP3628705B2 (ja) 2005-03-16
AU6629696A (en) 1997-03-05

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