WO2013063977A1 - Three-phase power frequency electromagnetic dual induction heating device and method for liquid - Google Patents

Three-phase power frequency electromagnetic dual induction heating device and method for liquid Download PDF

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Publication number
WO2013063977A1
WO2013063977A1 PCT/CN2012/080711 CN2012080711W WO2013063977A1 WO 2013063977 A1 WO2013063977 A1 WO 2013063977A1 CN 2012080711 W CN2012080711 W CN 2012080711W WO 2013063977 A1 WO2013063977 A1 WO 2013063977A1
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WIPO (PCT)
Prior art keywords
heating device
short
circuit
liquid
magnetic
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PCT/CN2012/080711
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French (fr)
Chinese (zh)
Inventor
吴荣华
Original Assignee
Wu Ronghua
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Publication date
Priority claimed from CN2011204280126U external-priority patent/CN202303839U/en
Priority claimed from CN201110340219.2A external-priority patent/CN102384577B/en
Application filed by Wu Ronghua filed Critical Wu Ronghua
Publication of WO2013063977A1 publication Critical patent/WO2013063977A1/en

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Classifications

    • 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
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
    • 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
    • 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
    • F24H2250/00—Electrical heat generating means
    • F24H2250/08—Induction

Definitions

  • the present invention relates to a power frequency electromagnetic induction short circuit and induction eddy current heating apparatus and method, and more particularly to a three-phase power frequency electromagnetic induction short circuit and induction eddy current heating apparatus and method for heating a liquid. Background technique
  • eddy current heating refers to an electrical heating that produces a Joule effect by a power frequency induced eddy current.
  • the working principle is that the alternating magnetic lines of force generate eddy currents and hysteresis in the conductor through the conductor, and the main effect of generating the Joule effect is eddy current, so it is called eddy current heating.
  • Short-circuit heating refers to an electrical heating that produces a Joule effect from a power-frequency induced short-circuit current.
  • Chinese patent ZL01134187.4 with the document number CN1142706C discloses a liquid three-phase power frequency electromagnetic induction and short-circuit heating device. This is the case. The working principle is that the secondary side is low according to the original secondary side turns ratio of the transformer. High voltage and current, in the above patent, the secondary side is 1 ⁇ , and short circuited to form a loop, so it is called short-circuit heating.
  • the part of the core is provided with a winding, and the core is not provided with a winding to form only a part of the yoke that constitutes the closed magnetic circuit.
  • the above patent creatively uses the metal casing as the secondary side, which closes the magnetic circuit along the three-phase.
  • the core and the primary winding are surrounded, so that three short-side secondary metal rings are formed on the core of the core, and four short-side secondary metal rings are formed on the yoke portion of the core, and a total of seven secondary short circuits are formed.
  • the above patent is hereinafter referred to as 7 secondary short-circuit heating device).
  • the secondary side metal rings of the metal casing When the primary side is connected to the three-phase power frequency power supply, the secondary side metal rings of the metal casing induce a short circuit and a large current; the secondary side metal rings of each phase are electrically connected to the same metal casing to generate phases and phases and between the three phases.
  • Short circuit high current.
  • the above two different short-circuit and large currents cause the metal casing to be rapidly heated.
  • the sum of the vectors of the three-phase short circuit is equal to zero, and the metal casing is zero potential during operation and is safe.
  • the above two kinds of short-circuit and large currents generate extraordinary magnetic flux leakage, which is also unusual for the thermal influence of the heating device, which is necessary for the development of commercial products, and the electric control box. Will affect normal operation.
  • the above patent does not mention short circuit leakage.
  • Figure 1 shows the magnetic field distribution (the boundary conditions are far enough) in the case of a transformer short circuit.
  • the primary and secondary sides have currents, and the magnetic fields generated by the currents of the two windings mostly cancel each other out.
  • the spatial distribution is mainly the leakage magnetic field (see “Engineering Electromagnetic Field”, Tsinghua University Press - 2004.9).
  • the magnetic induction intensity of the magnetic flux leakage of the above-mentioned seven secondary short-circuit heating devices having two different short circuits is inevitably larger than the magnetic induction intensity shown in FIG.
  • the object of the present invention is to provide a three-phase power frequency electromagnetic double induction heating device and a heating method for liquid, so that the leakage flux limit of the seven secondary short-circuit heating devices is stopped in the circulation box and is effectively utilized, and the heat effect during operation is further improved. High, safer and more reliable.
  • a metal plate using a ferromagnetic material has a magnetic permeability and a mechanism for generating eddy current and hysteresis, and is disposed around the 7-side short-circuit heating device, so that the short-circuit leakage occurs. It is effectively controlled and makes it an eddy current heating body.
  • the technical solution for realizing the three-phase power frequency electromagnetic double induction heating device (hereinafter referred to as double induction heating device) for liquid of the present invention is:
  • the double induction heating device of the present invention comprises 7 secondary short circuit heating devices, a circulation box and a piping system.
  • the secondary short-circuit heating device is fixed on the inner base in the circulation box, and the terminal block protrudes from the preset pipe hole on the vertical surface of the circulation box and is fixed by welding; the inlet manifold of the pipeline system passes through the front elevation of the circulation box The lower preset pipe hole passes through the inner base and is respectively welded and fixed; the inlet main pipe enters the circulation box and is divided into three outlets, and one road has 1 to 12 round hole outlets under the inlet main pipe at the inner base portion, and the other two paths are
  • An L-shaped branch pipe is arranged on the left and right sides of the inlet main pipe in front of the inner base, and the inlet of each L-shaped branch pipe is weldedly connected with the inlet main pipe, and the outlet is respectively welded and connected with the corresponding inlet pipe of the 7-side short-circuit heating device;
  • the upper end is provided with an outlet pipe;
  • the structural feature is:
  • the double induction heating device further comprises a ferromagnetic material magnetic guiding frame; the magnetic
  • the magnetic guide frame is in the shape of a "mouth" in a plan view, and the upper end is higher than the 7-side short-circuit heating device, and the lower end is up to
  • the bottom surface of the circulation box is surrounded by the seven sub-side short-circuit heating devices at a certain distance and uniform in spacing, thereby forming a passage for circulating liquid.
  • all circulating liquids to be heated pass through the passage from the bottom to the top, and the magnetic flux box induces the leakage magnetic flux generated by the 7-side short-circuit heating device to form a loop, and induces eddy current and hysteresis in the magnetic conductive frame. It is made into a vortex heating device, which simultaneously heats the liquid medium flowing through them with the above-mentioned seven secondary short-circuit heating devices, so that the short-circuit leakage is limited to the magnetic flux frame and is effectively controlled and utilized.
  • the magnetic conducting frame is made of a ferromagnetic metal plate, preferably a stainless steel plate or a steel plate having a thickness of 1 to 3 mm.
  • the passage between the above magnetic shielding frame and the 7-side short-circuit heating device may be determined by the flow rate of the liquid flowing through the passage of 0. dip 3 ⁇ 43 ⁇ 4, m.
  • the technical solution for the liquid three-phase power frequency electromagnetic double induction heating method for achieving the object of the present invention is: immersing the 7-side short-circuit heating device in the circulating liquid medium except that the terminal block protrudes out of the circulation box, so that it consumes Almost all of the active energy is converted into Joule heat; around the 7 secondary short-circuit heating devices A ferromagnetic material magnetic conductive frame is externally arranged to induce a magnetic flux leakage circuit generated by the 7-side short-circuit heating device, and induces eddy current and hysteresis in the magnetic magnetic frame to make it become a eddy current heating device, and leaks Magnetic is reactive; in this way, 7 secondary short-circuit heating devices that consume active energy and eddy current heating devices that consume reactive energy, and simultaneously heat the liquid medium flowing between them, that is, a 7-side short-circuit heating device is connected to three The phase power frequency power supply, and the heating liquid is the heating method of the two induction heating devices of short circuit and eddy
  • Figure 1 shows the magnetic field distribution in the case of a transformer short circuit.
  • Figure 3-a is a front view
  • Figure 3-b is a side view of Figure 3-a
  • Figure 3-c is a side view
  • Figure 3-a is a top view.
  • FIG. 4 is a schematic structural view of a three-phase power frequency electromagnetic double induction heating device of the present invention: wherein FIG. 4-a is a front view, FIG. 4-b is a side view of FIG. 4-a, and FIG. 4c is a side view of FIG. -a AA profile top view.
  • Fig. 5 is a set of commercial products of the three-phase power frequency electromagnetic double induction heating device of the present invention: wherein Fig. 5-a is a front view, and Fig. 5-b is a side view of Fig. 5-a.
  • Double induction heating device 50 flow guiding member 10, inlet branch pipe 11, outlet 12, circulation box 13, inner base 14, circular hole 15, inlet manifold 16, L-shaped branch 17, magnetic field guide 18, magnetic frame member 18- 1, the magnetic frame member 18-2, the channel 19,
  • Electric control box 60 7 secondary short-circuit heating device 30, rectangular tube 5, terminal block 6.
  • Fig. 2 shows a view of a magnetically permeable frame member 18-1 of the present invention.
  • Fig. 3 show a view of another member 18-2 of the magnetic permeable frame of the present invention.
  • the three views of Figure 4 show the dual induction heating device 50 of the present invention.
  • the seventh side short-circuit heating device 30 (the liquid three-phase power frequency electromagnetic induction and short-circuit heating device 30 in the patent document ZL01134187.4) is fixed to the inner base 14 in the circulation box 13 in such a manner that the terminal block 6 is located on the upper rear side.
  • the magnetic conductive frame member 18-2 has its circular hole passing through the terminal block 6 and its three sides are tightly covered on the inner side of the rear surface of the circulation box 13 and the left and right sides thereof, respectively, and welded and fixed; the magnetic magnetic frame member 18 of the above FIG. 2 is taken.
  • the circular hole of its size is respectively passed through the inlet manifold 16 and the inlet branch pipe 11 of the secondary short-circuit heating device, and the lower end thereof is welded and fixed to the bottom surface of the circulation box, and the left and right sides of the magnetic conductive frame member 18-2 are left and right.
  • a magnetically conductive frame 18 is formed on the periphery of the 7-side short-circuit heating device 30, and has a "mouth" shape in plan view, and its upper end is higher than the upper end surface of the short-circuit heating device 30, and the lower end is up to the circulation box 13
  • the bottom plate, the periphery and the 7-side short-circuit heating device 30 maintain a certain distance and the spacing is uniform, the magnetic frame 18 induces the leakage magnetic flux forming circuit of the 7-side short-circuit heating device 30, and forms a channel 19 for circulating liquid flow;
  • the liquid to be heated is pumped from the liquid storage tank (not shown) through the inlet manifold 16 into the magnetic conducting frame 18 of the circulation tank 13 by the circulation pump, and the water is discharged in three ways: one way is sprayed downward through the circular hole 15 and diffused.
  • the other two passes through the L-shaped branch 17 through the 7 inlet circular tubes 11 of the secondary side short-circuit heating device 30, enter the gap between the two rectangular tubes 5 and the flow guiding member 10, and then discharge from the other end of the two rectangular tubes 5 into the passage 19 (rectangular tube 5 and guide
  • the specific structure of the flow element 10 is detailed in the patent of ZL01134187.4).
  • the three-way liquid is short-circuited to the outer surface of the heating device 30 and the surface of the magnetic conductive frame 18 via the seven secondary sides, and the Joule heat generated by the short-circuit and the eddy current is discharged from the outlet 12 with the heated liquid, and is returned to the storage tank, so that the cycle is repeated. , heat the liquid in the tank to the required temperature.
  • Figure 2 is a view showing a kit 500 of the double induction heating device of the present invention, which is taken from the double induction heating device 50 of Figure 4, and the protective casing 51 is mounted on the frame 54, which is connected to the electric control box.
  • 60 is mounted on the same base 56, a fixed structure; an insulation layer (not shown) is disposed between the heating device 50 and the protective casing 51, and a drain valve 55 is provided at the bottom of the heating device 50 at the inlet 16 thereof.
  • An inlet temperature sensor 52 and a pressure sensor 53 are disposed on the pipeline, and an outlet temperature sensor 57 is disposed on the pipeline of the outlet 12; the low-voltage electrical appliance selected by the matched electrical control box can effectively detect short-circuit, over-current, and Fault signals such as leakage, and signals detected from the above sensors, such as the outlet water temperature, the temperature difference between the inlet water and the pressure, are sent to the PLC program controller, and then the PLC sends a control or alarm signal according to the programmed program to realize unmanned, safe automatic run.
  • the first 7-side short-circuit heating device 30 is directly exposed to the air, which is far enough according to the boundary conditions of FIG. That is, there are no metal parts in the range of 5 times the height dimension.
  • the relevant data of the 7-side short-circuit heating device 30 are shown in the following table number 1; the other 2 7-side short-circuit heating devices 30 are respectively in accordance with ZL01134187.4 patent
  • the magnetic enclosure 18 is not provided, and the magnetically permeable frame 18 of the present invention is assembled into a kit 100 as shown in FIG.
  • the material of the circulation box 13 is 304 stainless steel, the circulating medium is water, the material Q235 of the protective casing 51, and the heat preservation conditions are the same.
  • the relevant data of the actual measurement are shown in the following table No. 2 and No. 3. It can be clearly seen from the table that the boundary conditions of the 7-side short-circuit heating device 30 are different, and the parameters are different, and the largest variation is the reactive power: No. 1 boundary condition is far enough, and the reactive power consumed is the least Excitation reactive power consumption, including magnetic flux leakage; secondly, no. 2, 7 sub-side short-circuit heating device 30 is surrounded by no magnetic frame 18, reactive power is larger than that of serial number 1, and the temperature rise of the protective casing 51 is protected.
  • the height is the magnetic flux leakage of the secondary short-circuit heating device 30; the serial number 3 is the invention, and the magnetic shielding frame 18 is disposed around the secondary short-circuit heating device 30, and the reactive power is increased the most, and the temperature rise of the protective casing 51 is protected.
  • the measured thermal efficiency ⁇ reaches 1.108, and it is obvious that this is the leakage current of the 7-side short-circuit heating device 30, which causes eddy currents in the magnetic frame 18!
  • the magnetic flux leakage is reactive
  • the magnetic energy is also energy, and can be converted into thermal energy.
  • the measured data in the table is of considerable value for the determination of the reactive power equivalent of the short-circuit leakage magnetic energy converted into thermal energy in the future.
  • the magnetic frame is both magnetically conductive and diverted. It increases the flow rate of all circulating liquids through the passage between the short circuit and the eddy current heating device, and the heat exchange is more sufficient.
  • the measured temperature rise of the primary winding decreases by 7.2K. It is advantageous to shorten the service life of the heating device.
  • the magnetic frame limits the leakage flux, and the measured temperature rise of the protective casing drops from 57K to 15K, ensuring safe operation.
  • the magnetic frame converts the reactive short-circuit leakage magnetic energy into heat energy, and the measured thermal efficiency is increased from 0.977 to 1.108, which is 11.1% higher, saving energy and saving money.
  • the invention further improves and perfects ZL01134187.4, and the cost is small, and the energy saving and economic effects are very good.

Abstract

A three-phase power frequency electromagnetic dual induction heating device for liquid comprises: a 7 secondary short-circuit heating device (30), a circulating box (13), a pipeline system, and a magnetic frame (18). The 7 secondary short-circuit heating device (30) is fixed on an inner bottom base (14) in the circulating box (13). The pipeline system comprises a header inlet pipe (16), an L-shaped branch pipe (17), and an outlet pipe. The magnetic frame (18) is made of a ferromagnetic material, and a space is uniformly kept between four sides of the magnetic frame (18) and the 7 secondary short-circuit heating device (30), to form a passage (19) for a circulating liquid to flow. A three-phase power frequency electromagnetic dual induction heating method for liquid comprises: dipping a 7 secondary short-circuit heating device (30) into a circulating liquid medium; a magnetic frame (18) around the 7 secondary short-circuit heating device (30) inducing leakage flux generated by the 7 secondary short-circuit heating device (30) to form a loop, thereby generating an eddy current; and heating the liquid medium by means of short-circuit heating and eddy current heating at the same time.

Description

液用三相工频电磁双重感应加热装置和方法 技术领域  Liquid three-phase power frequency electromagnetic double induction heating device and method
本发明涉及一种工频电磁感应短路和感应涡流加热装置和方法， 更确切地说 是一种用于加热液体的三相工频电磁感应短路和感应涡流加热装置和方法。 背景技术  The present invention relates to a power frequency electromagnetic induction short circuit and induction eddy current heating apparatus and method, and more particularly to a three-phase power frequency electromagnetic induction short circuit and induction eddy current heating apparatus and method for heating a liquid. Background technique
在这里所称涡流加热， 是指由工频感应涡流产生焦耳效应的一种电加热。 其 工作原理是， 交变的磁力线通过导体在导体内产生涡流与磁滞， 其中产生焦耳效 应的主要是涡流， 故称涡流加热。  As used herein, eddy current heating refers to an electrical heating that produces a Joule effect by a power frequency induced eddy current. The working principle is that the alternating magnetic lines of force generate eddy currents and hysteresis in the conductor through the conductor, and the main effect of generating the Joule effect is eddy current, so it is called eddy current heating.
在这里所称短路加热，是指由工频感应短路电流产生焦耳效应的一种电加热。 文献号为 CN1142706C的中国专利 ZL01134187.4公开了一种液用三相工频电磁感 应及短路加热装置就属此例， 其工作原理是， 根据变压器原副边匝数比， 使副边 获得低电压大电流， 在上述专利中， 副边均为 1匝， 并且短接形成回路， 故称短 路加热。 按变压器专业术语， 铁心上设置绕组的部分称心柱， 铁心上不设绕组仅 起构成闭合磁回路的部分称轭铁； 上述专利创造性地利用金属外壳作为副边， 它 沿着三相闭合磁回路包围铁心及原边绕组， 这样， 在铁心的心柱上形成三个短接 的副边金属圈， 在铁心的轭铁部位上形成四个短接的副边金属圈， 共 7个副边短 路（上述专利以下简称 7副边短路加热装置）。 当原边接通三相工频电源， 金属外 壳的各副边金属圈则感应产生短路大电流； 各相位的副边金属圈与同一金属外壳 导通而产生相与相之间及三相间的短路大电流。 上述两种不同的短路大电流使金 属外壳被快速加热， 因三相短路其矢量之和等于零， 运行时金属外壳呈零电位， 安全。 上述两种短路大电流产生非比寻常的漏磁， 这对将该加热装置为开发成为 商用品所必须的防护外壳、 电控箱等的热影响却同样非比寻常， 若不采取一定措 施则会影响正常运行。 而上述专利并没提及短路漏磁。  Short-circuit heating, as used herein, refers to an electrical heating that produces a Joule effect from a power-frequency induced short-circuit current. Chinese patent ZL01134187.4 with the document number CN1142706C discloses a liquid three-phase power frequency electromagnetic induction and short-circuit heating device. This is the case. The working principle is that the secondary side is low according to the original secondary side turns ratio of the transformer. High voltage and current, in the above patent, the secondary side is 1 匝, and short circuited to form a loop, so it is called short-circuit heating. According to the terminology of transformers, the part of the core is provided with a winding, and the core is not provided with a winding to form only a part of the yoke that constitutes the closed magnetic circuit. The above patent creatively uses the metal casing as the secondary side, which closes the magnetic circuit along the three-phase. The core and the primary winding are surrounded, so that three short-side secondary metal rings are formed on the core of the core, and four short-side secondary metal rings are formed on the yoke portion of the core, and a total of seven secondary short circuits are formed. (The above patent is hereinafter referred to as 7 secondary short-circuit heating device). When the primary side is connected to the three-phase power frequency power supply, the secondary side metal rings of the metal casing induce a short circuit and a large current; the secondary side metal rings of each phase are electrically connected to the same metal casing to generate phases and phases and between the three phases. Short circuit high current. The above two different short-circuit and large currents cause the metal casing to be rapidly heated. The sum of the vectors of the three-phase short circuit is equal to zero, and the metal casing is zero potential during operation and is safe. The above two kinds of short-circuit and large currents generate extraordinary magnetic flux leakage, which is also unusual for the thermal influence of the heating device, which is necessary for the development of commercial products, and the electric control box. Will affect normal operation. The above patent does not mention short circuit leakage.
图 1为变压器短路情况下的磁场分布（边界条件足够远）， 这种情况下， 原副 边均有电流， 两绕组的电流产生的磁场大部分相互抵消。 从图 1磁感应强度线分 布可以看出， 空间分布的主要是漏磁场（见《工程电磁场》， 清华大学出版社—— 2004.9)。 显然， 具有两种不同短路的上述 7副边短路加热装置， 其漏磁的磁感应 强度势必大于图 1所示的磁感应强度。 发明内容 本发明的目的是提供一种液用三相工频电磁双重感应加热装置和加热方法， 使上述 7副边短路加热装置的漏磁限止在循环箱内且得到有效的利用， 运行时热 效更高， 更安全可靠。 Figure 1 shows the magnetic field distribution (the boundary conditions are far enough) in the case of a transformer short circuit. In this case, the primary and secondary sides have currents, and the magnetic fields generated by the currents of the two windings mostly cancel each other out. It can be seen from the magnetic induction line distribution of Fig. 1 that the spatial distribution is mainly the leakage magnetic field (see "Engineering Electromagnetic Field", Tsinghua University Press - 2004.9). Obviously, the magnetic induction intensity of the magnetic flux leakage of the above-mentioned seven secondary short-circuit heating devices having two different short circuits is inevitably larger than the magnetic induction intensity shown in FIG. Summary of the invention The object of the present invention is to provide a three-phase power frequency electromagnetic double induction heating device and a heating method for liquid, so that the leakage flux limit of the seven secondary short-circuit heating devices is stopped in the circulation box and is effectively utilized, and the heat effect during operation is further improved. High, safer and more reliable.
本发明的技术构思是： 应用铁磁性材质的金属板既具导磁性能好又易产生涡 流与磁滞的机理， 将它设置在 7副边短路加热装置的四周， 这样， 既使短路漏磁 受到有效控制， 又使它成为一涡流加热体。  The technical idea of the present invention is: a metal plate using a ferromagnetic material has a magnetic permeability and a mechanism for generating eddy current and hysteresis, and is disposed around the 7-side short-circuit heating device, so that the short-circuit leakage occurs. It is effectively controlled and makes it an eddy current heating body.
实现本发明的液用三相工频电磁双重感应加热装置 （以下简称为双感应加热 装置） 的技术方案是： 本发明的双感应加热装置包括 7副边短路加热装置、 循环 箱及管路***； 7 副边短路加热装置固定在循环箱中的内底座上， 其接线座伸出 循环箱后立面上部预设的管孔且焊接固定； 管路***的进口总管穿过循环箱前立 面下部预设的管孔、 穿过内底座， 分别焊接固定； 该进口总管进入循环箱后分三 路出口， 一路在内底座部位该进口总管下方设 1〜12个圆孔出口， 另二路在内底 座前该进口总管的左右两侧各设一 L型支管，各 L型支管的进口与进口总管焊接 连接， 出口分别与 7副边短路加热装置相应的进口圆管焊接连接； 在循环箱的上 端设有出口管道； 其结构特点是： 上述双感应加热装置还包括铁磁性材质的导磁 框； 该导磁框三面紧覆循环箱后立面的内侧及其左右， 第四面设在循环箱内且位 于 L型支管的后侧， 导磁框俯视呈 "口"字型， 它上端高于上述 7副边短路加热 装置， 下端直至循环箱底面， 四周与上述 7副边短路加热装置保持一定的间距且 间距均匀一致， 从而构成一循环液体流动的通道。 运行时， 所有待加热的循环液 体均由此通道从下向上通过， 导磁框诱导上述 7副边短路加热装置所产生的漏磁 与之形成回路， 在导磁框内感应产生涡流与磁滞而使之成为一涡流加热装置， 它 与上述的 7副边短路加热装置同时对流经它们的液体介质进行加热， 使短路漏磁 限止在导磁框内而得到了有效的控制和利用。  The technical solution for realizing the three-phase power frequency electromagnetic double induction heating device (hereinafter referred to as double induction heating device) for liquid of the present invention is: The double induction heating device of the present invention comprises 7 secondary short circuit heating devices, a circulation box and a piping system. 7 The secondary short-circuit heating device is fixed on the inner base in the circulation box, and the terminal block protrudes from the preset pipe hole on the vertical surface of the circulation box and is fixed by welding; the inlet manifold of the pipeline system passes through the front elevation of the circulation box The lower preset pipe hole passes through the inner base and is respectively welded and fixed; the inlet main pipe enters the circulation box and is divided into three outlets, and one road has 1 to 12 round hole outlets under the inlet main pipe at the inner base portion, and the other two paths are An L-shaped branch pipe is arranged on the left and right sides of the inlet main pipe in front of the inner base, and the inlet of each L-shaped branch pipe is weldedly connected with the inlet main pipe, and the outlet is respectively welded and connected with the corresponding inlet pipe of the 7-side short-circuit heating device; The upper end is provided with an outlet pipe; the structural feature is: The double induction heating device further comprises a ferromagnetic material magnetic guiding frame; the magnetic guiding frame is closed on the three sides of the circulation box The inner side of the façade and its left and right sides are disposed in the circulation box and located at the rear side of the L-shaped branch pipe. The magnetic guide frame is in the shape of a "mouth" in a plan view, and the upper end is higher than the 7-side short-circuit heating device, and the lower end is up to The bottom surface of the circulation box is surrounded by the seven sub-side short-circuit heating devices at a certain distance and uniform in spacing, thereby forming a passage for circulating liquid. During operation, all circulating liquids to be heated pass through the passage from the bottom to the top, and the magnetic flux box induces the leakage magnetic flux generated by the 7-side short-circuit heating device to form a loop, and induces eddy current and hysteresis in the magnetic conductive frame. It is made into a vortex heating device, which simultaneously heats the liquid medium flowing through them with the above-mentioned seven secondary short-circuit heating devices, so that the short-circuit leakage is limited to the magnetic flux frame and is effectively controlled and utilized.
上述导磁框由铁磁性材质的金属板制作，优选厚度为 1〜3毫米的不锈铁板或 钢板。  The magnetic conducting frame is made of a ferromagnetic metal plate, preferably a stainless steel plate or a steel plate having a thickness of 1 to 3 mm.
上述导磁框与 7副边短路加热装置之间的通道， 其间距大小可按液体流经该 通道的流速为每秒 0.浸^ ¾¾、米计算确定。  The passage between the above magnetic shielding frame and the 7-side short-circuit heating device may be determined by the flow rate of the liquid flowing through the passage of 0. dip 3⁄43⁄4, m.
实现本发明目的的液用三相工频电磁双重感应加热方法的技术方案是： 将 7 副边短路加热装置除接线座伸出循环箱外全部沉浸在循环的液体介质中， 如此， 它消耗的有功电能几乎全部转换成焦耳热能； 在上述 7副边短路加热装置的四周 ***专设的铁磁性材质的导磁框， 诱导该 7副边短路加热装置所产生的漏磁形成 回路， 在导磁框内感应产生涡流与磁滞， 使之成为一涡流加热装置， 而漏磁属无 功；这样，消耗有功电能的 7副边短路加热装置与消耗无功电能的涡流加热装置， 同时对流经它们之间的液体介质进行加热， 即一 7副边短路加热装置接通三相工 频电源， 而加热液体的是短路与涡流两个感应加热装置的加热方法， 该方法突破 了加热效率不大于 1.0的传统概念。 附图说明 The technical solution for the liquid three-phase power frequency electromagnetic double induction heating method for achieving the object of the present invention is: immersing the 7-side short-circuit heating device in the circulating liquid medium except that the terminal block protrudes out of the circulation box, so that it consumes Almost all of the active energy is converted into Joule heat; around the 7 secondary short-circuit heating devices A ferromagnetic material magnetic conductive frame is externally arranged to induce a magnetic flux leakage circuit generated by the 7-side short-circuit heating device, and induces eddy current and hysteresis in the magnetic magnetic frame to make it become a eddy current heating device, and leaks Magnetic is reactive; in this way, 7 secondary short-circuit heating devices that consume active energy and eddy current heating devices that consume reactive energy, and simultaneously heat the liquid medium flowing between them, that is, a 7-side short-circuit heating device is connected to three The phase power frequency power supply, and the heating liquid is the heating method of the two induction heating devices of short circuit and eddy current, and the method breaks through the traditional concept that the heating efficiency is not more than 1.0. DRAWINGS
图 1 为变压器短路情况下的磁场分布示图。  Figure 1 shows the magnetic field distribution in the case of a transformer short circuit.
图 2为本发明的三相工频电磁双重感应加热装置的导磁框一构件示意图。 图 为本发明的三相工频电磁双重感应加热装置的导磁框另一构件示意图： 其中图 3-a为正视图， 图 3-b为图 3-a的侧视图， 图 3-c为图 3-a的俯视图。  2 is a schematic view of a magnetic framing frame of the three-phase power frequency electromagnetic double induction heating device of the present invention. Figure 3 is a front view of the magnetic field frame of the three-phase power frequency electromagnetic double induction heating device of the present invention: Figure 3-a is a front view, Figure 3-b is a side view of Figure 3-a, Figure 3-c is a side view Figure 3-a is a top view.
图 4为本发明的三相工频电磁双重感应加热装置的一种结构示意图： 其中图 4-a为正视图， 图 4-b为图 4-a的侧视图， 图 4-c为图 4-a的 A-A剖面俯视图。  4 is a schematic structural view of a three-phase power frequency electromagnetic double induction heating device of the present invention: wherein FIG. 4-a is a front view, FIG. 4-b is a side view of FIG. 4-a, and FIG. 4c is a side view of FIG. -a AA profile top view.
图 5为本发明的三相工频电磁双重感应加热装置的一种成套商用品： 其中图 5-a为正视图， 图 5-b为图 5-a的侧视图。  Fig. 5 is a set of commercial products of the three-phase power frequency electromagnetic double induction heating device of the present invention: wherein Fig. 5-a is a front view, and Fig. 5-b is a side view of Fig. 5-a.
上述附图中的标记如下：  The markings in the above figures are as follows:
成套商用品 100，  Complete sets of commercial products 100,
双重感应加热装置 50， 导流件 10， 进口支管 11， 出口 12， 循环箱 13， 内底 座 14， 圆孔 15， 进口总管 16， L型支管 17， 导磁框 18， 导磁框构件 18-1， 导磁 框构件 18-2， 通道 19，  Double induction heating device 50, flow guiding member 10, inlet branch pipe 11, outlet 12, circulation box 13, inner base 14, circular hole 15, inlet manifold 16, L-shaped branch 17, magnetic field guide 18, magnetic frame member 18- 1, the magnetic frame member 18-2, the channel 19,
防护外壳 51，温度传感器 52，压力传感器 53， 机座 54，排污阀 55，底座 56， 温度传感器 57，  Protective housing 51, temperature sensor 52, pressure sensor 53, base 54, drain valve 55, base 56, temperature sensor 57,
电控箱 60， 7副边短路加热装置 30， 矩形管 5， 接线座 6。 具体实 式  Electric control box 60, 7 secondary short-circuit heating device 30, rectangular tube 5, terminal block 6. Specific form
(实施例）  (Example)
图 2显示了本发明的导磁框一构件 18-1的示图。  Fig. 2 shows a view of a magnetically permeable frame member 18-1 of the present invention.
图 3的 3个视图显示了本发明的导磁框另一构件 18-2的示图。  The three views of Fig. 3 show a view of another member 18-2 of the magnetic permeable frame of the present invention.
图 4的 3个视图显示了本发明的双重感应加热装置 50。将 7副边短路加热装 置 30 (ZL01134187.4专利文献中的液用三相工频电磁感应及短路加热装置 30) 以接线座 6位于上部后侧的方式固定在循环箱 13内的内底座 14上； 取上述图 3 的导磁框构件 18-2， 将它的圆孔穿过接线座 6后其三面紧覆循环箱 13后立面的 内侧及其左右， 分别焊接固定； 取上述图 2的导磁框构件 18-1， 将它的大小圆孔 分别穿过进口总管 16和 Ί副边短路加热装置的各进口支管 11， 其下端与循环箱 底面焊接固定， 左右与导磁框构件 18-2的左右侧端焊接固定； 这样， 形成在 7副 边短路加热装置 30的四周***设置的一导磁框 18， 俯视呈 "口"字形， 它上端 高于上述短路加热装置 30的上端面， 下端直至循环箱 13的底板， 四周与 7副边 短路加热装置 30保持一定的间距且间距均匀一致， 该导磁框 18诱导 7副边短路 加热装置 30的漏磁形成回路， 且又形成循环液体流动的通道 19; 待加热的液体 由循环泵从储液箱 （图中未给出） 中经进口总管 16泵入循环箱 13 的导磁框 18 之后分三路出水： 一路经圆孔 15向下喷出， 扩散后向上； 另二路经 L型支管 17 通过 7副边短路加热装置 30的 6个进口圆管 11，进入两矩形管 5与导流件 10的 间隙， 然后从两矩形管 5的另一端排出而进入通道 19 (矩形管 5与导流件 10的 具体结构详见 ZL01134187.4专利）。上述三路液体经 7副边短路加热装置 30的外 壳及导磁框 18的表面，将其产生短路与涡流的焦耳热量随着被加热的液体从出口 12排出， 回到储水箱中， 如此周而复始， 将储液箱的液体加热到要求的温度。 The three views of Figure 4 show the dual induction heating device 50 of the present invention. The seventh side short-circuit heating device 30 (the liquid three-phase power frequency electromagnetic induction and short-circuit heating device 30 in the patent document ZL01134187.4) is fixed to the inner base 14 in the circulation box 13 in such a manner that the terminal block 6 is located on the upper rear side. Above; take the above Figure 3 The magnetic conductive frame member 18-2 has its circular hole passing through the terminal block 6 and its three sides are tightly covered on the inner side of the rear surface of the circulation box 13 and the left and right sides thereof, respectively, and welded and fixed; the magnetic magnetic frame member 18 of the above FIG. 2 is taken. -1, the circular hole of its size is respectively passed through the inlet manifold 16 and the inlet branch pipe 11 of the secondary short-circuit heating device, and the lower end thereof is welded and fixed to the bottom surface of the circulation box, and the left and right sides of the magnetic conductive frame member 18-2 are left and right. In this manner, a magnetically conductive frame 18 is formed on the periphery of the 7-side short-circuit heating device 30, and has a "mouth" shape in plan view, and its upper end is higher than the upper end surface of the short-circuit heating device 30, and the lower end is up to the circulation box 13 The bottom plate, the periphery and the 7-side short-circuit heating device 30 maintain a certain distance and the spacing is uniform, the magnetic frame 18 induces the leakage magnetic flux forming circuit of the 7-side short-circuit heating device 30, and forms a channel 19 for circulating liquid flow; The liquid to be heated is pumped from the liquid storage tank (not shown) through the inlet manifold 16 into the magnetic conducting frame 18 of the circulation tank 13 by the circulation pump, and the water is discharged in three ways: one way is sprayed downward through the circular hole 15 and diffused. Backward; the other two passes through the L-shaped branch 17 through the 7 inlet circular tubes 11 of the secondary side short-circuit heating device 30, enter the gap between the two rectangular tubes 5 and the flow guiding member 10, and then discharge from the other end of the two rectangular tubes 5 into the passage 19 (rectangular tube 5 and guide The specific structure of the flow element 10 is detailed in the patent of ZL01134187.4). The three-way liquid is short-circuited to the outer surface of the heating device 30 and the surface of the magnetic conductive frame 18 via the seven secondary sides, and the Joule heat generated by the short-circuit and the eddy current is discharged from the outlet 12 with the heated liquid, and is returned to the storage tank, so that the cycle is repeated. , heat the liquid in the tank to the required temperature.
图 5的 2个视图显示了本发明的双重感应加热装置的一种成套商用品 100， 取上述图 4的双重感应加热装置 50， 与防护外壳 51安装在机座 54上， 它与电控 箱 60安装在同一底座 56上， 固定式结构； 上述加热装置 50与防护外壳 51之间 设有保温层 （图中未给出）， 加热装置 50的底部设有排污阀 55， 在其进口 16的 管道上设有进口温度传感器 52与压力传感器 53，在其出口 12的管道上设有出口 温度传感器 57; 配套的电控箱所选择的低压电器能有效地检测电气***中的短 路、 过流、 漏电等故障信号， 以及从上述各传感器检测到出口水温、 出进口水温 差、 压力等信号均送到 PLC程序控制器， 然后由 PLC根据编制的程序发出控制 或报警信号， 实现无人、 安全自动运行。  Figure 2 is a view showing a kit 500 of the double induction heating device of the present invention, which is taken from the double induction heating device 50 of Figure 4, and the protective casing 51 is mounted on the frame 54, which is connected to the electric control box. 60 is mounted on the same base 56, a fixed structure; an insulation layer (not shown) is disposed between the heating device 50 and the protective casing 51, and a drain valve 55 is provided at the bottom of the heating device 50 at the inlet 16 thereof. An inlet temperature sensor 52 and a pressure sensor 53 are disposed on the pipeline, and an outlet temperature sensor 57 is disposed on the pipeline of the outlet 12; the low-voltage electrical appliance selected by the matched electrical control box can effectively detect short-circuit, over-current, and Fault signals such as leakage, and signals detected from the above sensors, such as the outlet water temperature, the temperature difference between the inlet water and the pressure, are sent to the PLC program controller, and then the PLC sends a control or alarm signal according to the programmed program to realize unmanned, safe automatic run.
(试验例）  (test example)
取上述同规格的 3台 7副边短路加热装置 30，在相同电源条件下做如下 3个 试验:第 1台 7副边短路加热装置 30直接暴露在空气中，按图 1边界条件足够远， 即四周在其 5倍高度尺寸的范围内无任何金属件，实测该 7副边短路加热装置 30 的有关数据见下表序号 1 ;其它 2台 7副边短路加热装置 30分别按 ZL01134187.4 专利不设导磁框 18和本发明设置导磁框 18组装成如图 5所示的成套商用品 100， 其中循环箱 13的材质为 304不锈钢、 循环介质为水、 保护外壳 51的材质 Q235、 保温等条件相同， 实测的有关数据分别见下表序号 2和序号 3。 从表中可清楚看 至 lj， 7副边短路加热装置 30边界条件不同， 各项参数也不同， 其中变化幅度最大 的是无功功率： 序号 1边界条件足够远， 其消耗的无功功率最少， 系励磁无功消 耗， 其中包括漏磁； 其次是序号 2， 7副边短路加热装置 30的四周无导磁框 18， 无功功率较序号 1增幅较大，其保护外壳 51的温升之高就是该 Ί副边短路加热装 置 30的漏磁使然； 序号 3为本发明， 7副边短路加热装置 30的四周设有导磁框 18， 无功功率增幅最大， 其保护外壳 51的温升大幅下降， 实测热效率 η达 1.108 创新高度， 显然， 这是该 7副边短路加热装置 30的漏磁在导磁框 18中产生涡流 使然也！ 在这里， 漏磁虽属无功， 但磁能也是能， 同样可转换成热能。 另外， 表 中实测数据对日后检测短路漏磁能转换成热能之无功当量的确定具有相当价值。 表 Take the three 7-side short-circuit heating devices 30 of the same specification and perform the following three tests under the same power supply conditions: the first 7-side short-circuit heating device 30 is directly exposed to the air, which is far enough according to the boundary conditions of FIG. That is, there are no metal parts in the range of 5 times the height dimension. The relevant data of the 7-side short-circuit heating device 30 are shown in the following table number 1; the other 2 7-side short-circuit heating devices 30 are respectively in accordance with ZL01134187.4 patent The magnetic enclosure 18 is not provided, and the magnetically permeable frame 18 of the present invention is assembled into a kit 100 as shown in FIG. The material of the circulation box 13 is 304 stainless steel, the circulating medium is water, the material Q235 of the protective casing 51, and the heat preservation conditions are the same. The relevant data of the actual measurement are shown in the following table No. 2 and No. 3. It can be clearly seen from the table that the boundary conditions of the 7-side short-circuit heating device 30 are different, and the parameters are different, and the largest variation is the reactive power: No. 1 boundary condition is far enough, and the reactive power consumed is the least Excitation reactive power consumption, including magnetic flux leakage; secondly, no. 2, 7 sub-side short-circuit heating device 30 is surrounded by no magnetic frame 18, reactive power is larger than that of serial number 1, and the temperature rise of the protective casing 51 is protected. The height is the magnetic flux leakage of the secondary short-circuit heating device 30; the serial number 3 is the invention, and the magnetic shielding frame 18 is disposed around the secondary short-circuit heating device 30, and the reactive power is increased the most, and the temperature rise of the protective casing 51 is protected. Significantly, the measured thermal efficiency η reaches 1.108, and it is obvious that this is the leakage current of the 7-side short-circuit heating device 30, which causes eddy currents in the magnetic frame 18! Here, although the magnetic flux leakage is reactive, the magnetic energy is also energy, and can be converted into thermal energy. In addition, the measured data in the table is of considerable value for the determination of the reactive power equivalent of the short-circuit leakage magnetic energy converted into thermal energy in the future. table
Figure imgf000007_0001
Figure imgf000007_0001
以上实施例是对本发明的具体实施方式的说明， 而非对本发明的限制， 有关 技术领域的技术人员在不脱离本发明的精神和范围的情况下， 还可以作出各种变 换和变化而得到相对应的等同的技术方案， 因此所有等同的技术方案均应该归入 本发明的专利保护范围。 k应用性  The above embodiments are illustrative of the specific embodiments of the present invention, and are not intended to limit the scope of the invention, and those skilled in the art can make various changes and changes without departing from the spirit and scope of the invention. Corresponding equivalent technical solutions, and therefore all equivalent technical solutions should be included in the scope of patent protection of the present invention. k applicability
( 1 )导磁框既导磁也导流， 它使所有的循环液体在通过短路与涡流两加热装 置之间的通道时流速增加， 热交换更充分， 实测原边绕组温升下降 7.2K, 有利短 路加热装置的使用寿命。  (1) The magnetic frame is both magnetically conductive and diverted. It increases the flow rate of all circulating liquids through the passage between the short circuit and the eddy current heating device, and the heat exchange is more sufficient. The measured temperature rise of the primary winding decreases by 7.2K. It is advantageous to shorten the service life of the heating device.
(2) 导磁框限止了漏磁的辐射， 实测保护外壳的温升从 57K下降到 15K, 确保了运行安全。 ( 3 ) 导磁框使无功的短路漏磁能转换成热能， 实测热效率从 0.977 提高到 1.108， 提高了 11.1个百分点， 节能、 省钱。 本发明通过对 ZL01134187.4更进一 步的改进和完善， 花费不多， 节能及经济效果却非常的好。 (2) The magnetic frame limits the leakage flux, and the measured temperature rise of the protective casing drops from 57K to 15K, ensuring safe operation. (3) The magnetic frame converts the reactive short-circuit leakage magnetic energy into heat energy, and the measured thermal efficiency is increased from 0.977 to 1.108, which is 11.1% higher, saving energy and saving money. The invention further improves and perfects ZL01134187.4, and the cost is small, and the energy saving and economic effects are very good.

Claims

权利要求书 Claim
1、一种液用三相工频电磁双重感应加热装置，包括 7副边短路加热装置 (30)、 循环箱 （13) 及管路***； 7 副边短路加热装置 （30) 固定在循环箱 （13) 中的 内底座（14)上， 其接线座 （6)伸出循环箱（13)后立面上部预设的管孔且焊接 固定； 管路***的进口总管 （16) 穿过循环箱 （13) 前立面下部预设的管孔、 穿 过内底座（14)， 分别焊接固定； 该进口总管 （16)进入循环箱（13)后分三路出 口， 一路在内底座（14)部位， 该进口总管（16)下方设 1〜12个圆孔出口 （15)， 另二路在内底座 （14) 前， 该进口总管 （16) 的左右两侧各设一 L型支管 （17)， 各 L型支管 （17) 的进口与进口总管 （16) 焊接连接， 出口分别与 7副边短路加 热装置 （30) 的相应的进口圆管 （11) 焊接连接； 在循环箱 （13) 的上端设有出 口管道； 其特征在于： 还包括铁磁性材质的导磁框（18); 该导磁框（18)三面紧 覆循环箱 （13) 后立面的内侧及其左右， 第四面设在循环箱 （13) 内且位于 L型 支管 （17) 的后侧， 导磁框 （18) 俯视呈 "口"字型， 它上端高于上述 7副边短 路加热装置（30)， 下端直至循环箱（13)底面， 四周与上述 7副边短路加热装置 (30) 保持一定的间距且间距均匀一致， 从而构成一循环液体流动的通道 （19); 运行时， 所有待加热的循环液体均由此通道 （19) 从下向上通过， 导磁框 （18) 诱导上述 7副边短路加热装置（30)所产生的漏磁与之形成回路， 在导磁框（18) 内感应产生涡流与磁滞而使之成为一涡流加热装置， 它与上述的 7副边短路加热 装置（30) 同时对流经它们的液体介质进行加热， 使短路漏磁限止在导磁框（18) 内而得到了有效的控制和利用。  1. A three-phase power frequency electromagnetic double induction heating device for liquid, comprising 7 secondary short-circuit heating devices (30), a circulation box (13) and a piping system; 7 secondary short-circuit heating device (30) fixed in the circulation box On the inner base (14) of (13), the terminal block (6) extends out of the circulation hole (13) and is fixed by the predetermined pipe hole on the upper surface; the inlet manifold (16) of the piping system passes through the circulation. Box (13) The preset pipe hole in the lower part of the front façade passes through the inner base (14) and is respectively welded and fixed; the inlet main pipe (16) enters the circulation box (13) and is divided into three outlets, one way inside the base (14) ), the inlet manifold (16) is provided with 1~12 round hole outlets (15), and the other two channels are provided with an L-shaped branch pipe on the left and right sides of the inlet manifold (16). 17), the inlet of each L-shaped branch pipe (17) is welded to the inlet manifold (16), and the outlet is welded to the corresponding inlet pipe (11) of the 7-side short-circuit heating device (30); The upper end is provided with an outlet pipe; the feature is: a ferromagnetic material magnetic frame 18); The magnetic frame (18) is placed on the three sides of the circulation box (13) on the inner side of the rear façade and its left and right sides, and the fourth side is arranged in the circulation box (13) and on the rear side of the L-shaped branch pipe (17). The magnetic guide frame (18) has a "mouth" shape in a plan view, and the upper end is higher than the 7-side short-circuit heating device (30), the lower end is up to the bottom surface of the circulation box (13), and the 7-side short-circuit heating device (30) is arranged around the bottom side. Maintaining a certain spacing and uniform spacing to form a circulating liquid flow passage (19); during operation, all circulating liquid to be heated passes through the passage (19) from bottom to top, and the magnetic conducting frame (18) induces the above The leakage magnetic flux generated by the 7-side short-circuit heating device (30) forms a loop, and induces eddy current and hysteresis in the magnetic conducting frame (18) to become a eddy current heating device, which is short-circuited with the above-mentioned 7 secondary sides. The heating device (30) simultaneously heats the liquid medium flowing through them, so that the short-circuit leakage is limited to the magnetically guided frame (18) and is effectively controlled and utilized.
2、根据权利要求 1所述的液用三相工频电磁双重感应加热装置，其特征在于： 所述导磁框 （18) 由铁磁性材质的金属板制作。  The liquid three-phase power frequency electromagnetic double induction heating device according to claim 1, wherein the magnetic conductive frame (18) is made of a ferromagnetic metal plate.
3、根据权利要求 2所述的液用三相工频电磁双重感应加热装置，其特征在于： 导磁框 （18) 的板体是厚度为 1〜3毫米的不锈铁板或钢板。  The liquid three-phase power frequency electromagnetic double induction heating device according to claim 2, wherein the plate body of the magnetic conductive frame (18) is a stainless steel plate or a steel plate having a thickness of 1 to 3 mm.
4、根据权利要求 1所述的液用三相工频电磁双重感应加热装置，其特征在于： 导磁框（18)与 7副边短路加热装置（30)之间的通道（19)， 其间距大小可按液 体流经该通道 （19) 的流速为每秒 0.7〜2.0米计算确定。  The three-phase power frequency electromagnetic double induction heating device for liquid use according to claim 1, characterized in that: a passage (19) between the magnetic conducting frame (18) and the seventh secondary short-circuit heating device (30), The spacing can be determined by the flow rate of liquid through the channel (19) of 0.7 to 2.0 meters per second.
5、 一种液用三相工频电磁双重感应加热方法， 其特征在于： 将 7副边短路 加热装置（30)除接线座（6)伸出循环箱（13)外全部沉浸在循环的液体介质中， 如此， 它消耗的有功电能几乎全部转换成焦耳热能； 在上述 7副边短路加热装置 (30) 的四周***所专设的铁磁性材质的导磁框 （18) 诱导该 7副边短路加热装 置 （30) 所产生的漏磁形成回路， 在导磁框 （18) 内感应产生涡流与磁滞， 使之 成为一涡流加热装置， 而漏磁属无功； 这样， 消耗有功电能的 7副边短路加热装 置 （30) 与消耗无功电能的涡流加热装置同时对流经它们之间的液体介质进行加 热， 即一 7副边短路加热装置 （30) 接通三相工频电源， 而加热液体的是短路与 涡流两个感应加热装置的加热方法， 该方法突破了加热效率不大于 1.0的传统概 念。 5. A three-phase power frequency electromagnetic double induction heating method for liquid, characterized in that: 7 sub-side short-circuit heating device (30) is immersed in circulating liquid except that the terminal block (6) protrudes out of the circulation box (13). In the medium, in this way, almost all of the active energy consumed by it is converted into Joule heat energy; The ferromagnetic material magnetic frame (18) specially designed around the periphery of (30) induces a magnetic flux leakage loop generated by the 7-side short-circuit heating device (30) to induce eddy currents in the magnetic conductive frame (18). And the hysteresis, making it a vortex heating device, and the magnetic leakage is reactive; thus, the 7-side short-circuit heating device (30) that consumes the active energy flows simultaneously with the eddy current heating device that consumes the reactive energy. The liquid medium is heated, that is, a 7-side short-circuit heating device (30) is connected to the three-phase power frequency power supply, and the heating liquid is a heating method of two induction heating devices of short circuit and eddy current, and the method breaks the heating efficiency to not more than 1.0. Traditional concept.
PCT/CN2012/080711 2011-11-01 2012-08-29 Three-phase power frequency electromagnetic dual induction heating device and method for liquid WO2013063977A1 (en)

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Citations (7)

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Publication number Priority date Publication date Assignee Title
EP0383272A2 (en) * 1989-02-17 1990-08-22 Nikko Corporation Ltd. Low-frequency electromagnetic induction heater
FR2713871A1 (en) * 1993-12-15 1995-06-16 Bolcato Robert Reheating of fluid by electromagnetic field
CN1356856A (en) * 2001-11-18 2002-07-03 吴荣华 Three-phase main-frequency electromagnetic induction and short-circuit heater for liquid and its method
WO2006006946A1 (en) * 2004-07-09 2006-01-19 Fos International S.A. Method for fluid media treatment and induction thereof
CN200980177Y (en) * 2006-12-05 2007-11-21 陈炳炎 A heating device by main-frequency induction metal short circuit liquid magnetism
CN102384577A (en) * 2011-11-01 2012-03-21 吴荣华 Three-phase power frequency electromagnetic dual induction heating device for liquid and method thereof
CN202303839U (en) * 2011-11-01 2012-07-04 吴荣华 Three-phase power-frequency dual electromagnetic inductive liquid heater

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0383272A2 (en) * 1989-02-17 1990-08-22 Nikko Corporation Ltd. Low-frequency electromagnetic induction heater
FR2713871A1 (en) * 1993-12-15 1995-06-16 Bolcato Robert Reheating of fluid by electromagnetic field
CN1356856A (en) * 2001-11-18 2002-07-03 吴荣华 Three-phase main-frequency electromagnetic induction and short-circuit heater for liquid and its method
WO2006006946A1 (en) * 2004-07-09 2006-01-19 Fos International S.A. Method for fluid media treatment and induction thereof
CN200980177Y (en) * 2006-12-05 2007-11-21 陈炳炎 A heating device by main-frequency induction metal short circuit liquid magnetism
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CN202303839U (en) * 2011-11-01 2012-07-04 吴荣华 Three-phase power-frequency dual electromagnetic inductive liquid heater

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