CN201898634U

CN201898634U - Electromagnetic induction heating device

Info

Publication number: CN201898634U
Application number: CN201020620390XU
Authority: CN
Inventors: 陈华; 蔡雪香
Original assignee: SUZHOU YUNFENG ENVIRONMENTAL SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: SUZHOU YUNFENG ENVIRONMENTAL SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2010-11-23
Filing date: 2010-11-23
Publication date: 2011-07-13
Anticipated expiration: 2020-11-23

Abstract

The utility model provides an electromagnetic induction heating device, which comprises a metal pipe and an inductor. The inductor consists of induction coils which are axially arranged. A nonmetallic heat insulating layer is arranged on the periphery of the metal pipe. The inductor surrounds the external circle of the nonmetallic heat insulating layer. All turns of induction coils of the inductor are uniformly cut off along the axial direction. The cutoff induction coils are correspondingly butt-connected through a connecting fastener to form closed induction coils. A two-half-type plastic sheath is arranged on the periphery of the inductor and comprises a left plastic sheath and a right plastic sheath. Two cooling water chambers are respectively arranged in the left plastic sheath and the right plastic sheath. The inner walls of the left plastic sheath and the right plastic sheath are respectively provided with an electric-conductive and magnetic-nonconductive material layer. The electromagnetic induction heating device has the advantages that the simplified and modularized assembling and disassembling of the induction coils are realized, and the inconvenience in disassembling in electromagnetic induction heating application is avoided.

Description

Electromagnetic induction heater

Technical field

The utility model relates to a kind of electromagnetic induction heater, belongs to the electromagnetic heating apparatus technical field.

Background technology

The electromagnetism heating has been used a lot of years as a kind of novel mode of heating; Along with the expansion of technology maturation and energy-conservation demand, electromagnetism heating and energy saving advantage obtains embodying; The extensive use of plastics makes plastic processing enterprise more and more; In the plastic shaping link, need a large amount of heat energy that plastic raw materials is melted and be re-introduced into die for molding; The electromagnetism heating is a kind of electromagnetic induction heating pattern, by rectification circuit the alternating voltage of 50/60Hz is become direct voltage, convert direct voltage to high frequency voltage that frequency is 20～40KHz through control circuit again, the electric current that changes flows through the magnetic field that coil can produce the high speed variation at a high speed, in passing through metal object (magnetic conduction is electric conducting material again) metallic object, the magnetic line of force in the magnetic field produces countless little eddy current, make metal heating at a high speed voluntarily itself, and then the thing in the heating of metal.At present the material tubing matter of all make-up machines all contains a large amount of ferro elements, for magnetic conduction electric conducting material again, so the electromagnetism heating can be widely used in this industry.Because electromagnetic induction heating has reduced heat conduction and thermal radiation loss.Can significantly reduce the consumption of electric power like this, so meet the energy-saving low-carbon requirement.

In electromagnetic heating technique was used, requisite was induction coil; In the injection mo(u)lding industry, because the link of all heating all is that tube is heated, so need to adopt lead to be wrapped in heated metal tube part; In actual applications, employing will be heated metal tube employing heatproof insulation nonmetallic substance and wrap up 15～20mm thickness; With on winding of heatproof lead and the heat-insulation layer, obtain the respective electrical sensibility reciprocal and get final product then; Following situation can appear in daily use:

1) feed mouth leakage material phenomenon occurs through regular meeting and cause induction coil can't be separated, coil can only be damaged and install again by sticking labor;

2) when expecting that pipe and screw rod go wrong, the material pipe need be pulled down when toasting and the inductance line all need be pulled down, and heat-insulation layer is also wanted complete removal; Installation makes material lossy once more, and time-consuming;

3) electromagnetic induction heater steady operation and induction coil inductance value have very confidential relation, and coil coiling again just need be adjusted again, and workload increases;

4) electromagnetic induction heating all can produce the magnetic induction heating phenomena to metal magnetic conducting in the 25mm and conductive materials, can only warn beyond this point for this reason; Because electromagnetic induction is cannot see, and imperceptible, has produced magnetic energy and leak when sense organ has heat.

The utility model content

The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of electromagnetic induction heater is provided.

The purpose of this utility model is achieved through the following technical solutions:

Electromagnetic induction heater, comprise metal charge pipe and inductor, described inductor is arranged vertically by induction coil and is constituted, characteristics are: the outer periphery of described metal charge pipe is equipped with the nonmetallic materials thermal insulation layer, inductor is looped around the cylindrical of nonmetallic materials thermal insulation layer, every circle induction coil of described inductor disconnects shape for consistency vertically, by connecting the corresponding butt joint of every circle induction coil that buckle will disconnect, forms closed induction coil; The outer periphery of described inductor is equipped with two halves formula plastic cement sheath, comprises left plastic cement sheath and right plastic cement sheath, is provided with cooling water cavity in left plastic cement sheath and the right plastic cement sheath, and the inwall of left plastic cement sheath and right plastic cement sheath is provided with conduction non-magnet_conductible material layer.

Further, above-mentioned electromagnetic induction heater, wherein, the two ends of described connection buckle have the spliced eye of planting for induction coil respectively.

Further, above-mentioned electromagnetic induction heater, wherein, the radial thickness of described left plastic cement sheath and right plastic cement sheath is 25～50mm.

Again further, above-mentioned electromagnetic induction heater, wherein, the inner-wall spraying or the sputter of left plastic cement sheath and right plastic cement sheath or be electroplate with conduction non-magnet_conductible material layer; The material of nonmetallic materials thermal insulation layer is mineral silk floss, glass fibre silk floss or ceramic fibre silk floss; The material of conduction non-magnet_conductible material layer is aluminium, copper or plumbous zinc.

The substantive distinguishing features of technical solutions of the utility model and progressive being mainly reflected in:

The utility model improves the induction coil configuration of the on-the-spot coiling of original needs, to realize easy, modular installation and removal, avoid the electromagnetism heating dismounting trouble in using link, and must be that the professional can finish, this version is very simple be convenient to dismounting; The user can finish installation voluntarily; Owing to have the electromagnetic radiation isolated chambers, improved the fail safe of magnetic induction heating greatly, realized the security protection distance by equipment self; Avoided electromagnetic radiation can't see, and damaged to personnel; Excessive at power, when amount of radiation exceeded standard, the material of external conductive non-magnet_conductible material layer was aluminium, copper or plumbous zinc etc., and metal level connects and the earth ground connection by lead; Non-magnet_conductible material can stop the magnetic force radiation, but electromagnetic radiation is the release of multiple energy, emittance can be discharged by ground connection for this reason, can not damage personnel.

Description of drawings

Below in conjunction with accompanying drawing technical solutions of the utility model are described further:

Fig. 1: structural representation of the present utility model.

The implication of each Reference numeral sees the following form among the figure:

Embodiment

As shown in Figure 1, electromagnetic induction heater, comprise metal charge pipe 1 and inductor 3, inductor 3 is arranged vertically by induction coil and is constituted, the outer periphery of metal charge pipe 1 is equipped with nonmetallic materials thermal insulation layer 2, inductor 3 is looped around the cylindrical of nonmetallic materials thermal insulation layer 2, every circle induction coil of inductor 3 disconnects shape for consistency vertically, by connecting the corresponding butt joint of every circle induction coil that buckle 4 will disconnect, the two ends that connect buckle have the spliced eye of planting for induction coil respectively, form closed induction coil; The outer periphery of inductor 3 is equipped with two halves formula plastic cement sheath 6, comprises left plastic cement sheath and right plastic cement sheath, is provided with cooling water cavity in left plastic cement sheath and the right plastic cement sheath, and the inwall of left plastic cement sheath and right plastic cement sheath is provided with conduction non-magnet_conductible material layer 5.Wherein, the radial thickness of left plastic cement sheath and right plastic cement sheath is 25～50mm; The material of nonmetallic materials thermal insulation layer 2 is mineral silk floss, glass fibre silk floss or ceramic fibre silk floss etc., high temperature resistant soft insulation material.The material of conduction non-magnet_conductible material layer 5 is aluminium, copper or plumbous zinc etc., but has satisfactory electrical conductivity non-conducting electromagnetic wave.

During concrete the application, the release of electromagnetic induction heating final energy in using link realizes by induction coil; In the outside electromagnetic induction heating mode that adopts of tubular metal, the mounting means of induction coil can influence the heating uniformity of metallic conduit; In the practice, the radial closure coil mode even heats of generating heat is good; But coil winding needs the scene to finish, and each dismounting meeting causes the change of parameter influence result of use, and the change of parameter can cause the electromagnetism power-supply device to damage, and the popularization that electromagnetism is heated has produced certain influence; Present technique is by prefabricated winding displacement, uses connector to connect and is combined as the radial closure induction coil; The inductance value that meets the requirements after installation is for the first time measured prolongs axial picture one straight line with marking pen at the fastener root, as long as the not variation of this straight line, parameter must be original parameter after each dismounting.

The insulation layer mainly is to ensure that the heating object body heat content does not lose and reduces the influence of heat to the induction coil service behaviour.

Line of induction ring layer is that the energy-sensitive effect takes place electromagnetism; By producing eddy current magnetism, make the metal tube self-heating; The overheated meeting of coil causes the variation of parameter, causes power supply to damage.

The magnetic layer not of conducting electricity effectively prevents the release of electromagnetic radiation or other energy, and the personnel that cause injure; For example electric leakage or the excessive magnetic energy that causes of energy leak.

The cooling separate cavities increases safe distance on the overcoat basis, effectively protect coil, and by the magnetic test coil temperature, by fluid coil is lowered the temperature in good time.

In sum, the utility model electromagnetic induction heater can heat being heated the position outside the nonmetallic materials thermal insulation layer.Inductor is easy to manufacture, and mounting or dismounting are convenient, long service life, and it is not influential to the nonmetallic materials thermal insulation layer to construct, and is not subjected to the influence of plastic cement sheath yet, can realize electromagnetic induction heating to being heated the position easily.

What need understand is: the above only is a preferred implementation of the present utility model; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims

1. electromagnetic induction heater, comprise metal charge pipe and inductor, described inductor is arranged vertically by induction coil and is constituted, it is characterized in that: the outer periphery of described metal charge pipe is equipped with the nonmetallic materials thermal insulation layer, inductor is looped around the cylindrical of nonmetallic materials thermal insulation layer, every circle induction coil of described inductor disconnects shape for consistency vertically, by connecting the corresponding butt joint of every circle induction coil that buckle will disconnect, forms closed induction coil; The outer periphery of described inductor is equipped with two halves formula plastic cement sheath, comprises left plastic cement sheath and right plastic cement sheath, is provided with cooling water cavity in left plastic cement sheath and the right plastic cement sheath, and the inwall of left plastic cement sheath and right plastic cement sheath is provided with conduction non-magnet_conductible material layer.

2. electromagnetic induction heater according to claim 1 is characterized in that: the inner-wall spraying or the sputter of described left plastic cement sheath and right plastic cement sheath or be electroplate with conduction non-magnet_conductible material layer.

3. electromagnetic induction heater according to claim 1 is characterized in that: the radial thickness of described left plastic cement sheath and right plastic cement sheath is 25～50mm.

4. electromagnetic induction heater according to claim 1 is characterized in that: the two ends of described connection buckle have the spliced eye of planting for induction coil respectively.

5. electromagnetic induction heater according to claim 1 is characterized in that: the material of described nonmetallic materials thermal insulation layer is mineral silk floss, glass fibre silk floss or ceramic fibre silk floss.

6. electromagnetic induction heater according to claim 1 is characterized in that: the material of described conduction non-magnet_conductible material layer is aluminium, copper or plumbous zinc.