CN2472446Y - Lateral magnet field inductive heat radiator - Google Patents
Lateral magnet field inductive heat radiator Download PDFInfo
- Publication number
- CN2472446Y CN2472446Y CN 01211962 CN01211962U CN2472446Y CN 2472446 Y CN2472446 Y CN 2472446Y CN 01211962 CN01211962 CN 01211962 CN 01211962 U CN01211962 U CN 01211962U CN 2472446 Y CN2472446 Y CN 2472446Y
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- CN
- China
- Prior art keywords
- magnetic field
- metal tube
- heating element
- heat
- transverse magnetic
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- Expired - Fee Related
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Abstract
The utility model relates to a heating element, in particular to a heating induction heater with transverse magnetic field, comprising two equal-length metal tubes 1, a heat-insulation layer 2, a plurality of electrical conductors 3 with heat resistant insulation layer, and two heads 4; wherein, the heat-insulation layer 2 is made of thermal insulation materials and has proper thickness and is positioned on the inner wall of the metal tubes 1; the electrical conductors 3 are positioned in the middle of each metal tube 1 in parallel; the heads 4 are connected with the two ends of the metal tube; a wire 6 is led from the insulator 5 on the heads 4 at the front end and a temperature relay 8 is positioned on the heads 4. The utility model has the advantages of separation of the liquid carrier and the heating unit, safe use, high thermal efficiency, and application for the heating device with power rating ranging from 100W to 100KW.
Description
The utility model belongs to heater element, particularly a kind of transverse magnetic field heating induction heating apparatus.
Traditional induction heating equipment, as the intermediate frequency converter, middle and high frequency induction hardening equipment, equipment such as mid freqency induction furnace, converter adopt the longitudinal magnetic field heating.The inherent defect of this heater, (1) natural power factor is low, and only about 0.02 to 0.7, must using compensation electric capacity; (2) when the heating thin-wall workpiece, to use frequency conversion equipment; (3) when nonmetallic materials such as heating timber, rubber, plastics, paper, food, utilize water, oil, gas etc. in the middle of heating agent conduct heat, cause equipment thermal capacity big, start slowly, the heat efficiency reduces.
The purpose of this utility model is to overcome the technical deficiency of longitudinal magnetic field heating, provides a kind of heat efficiency height, safe and reliable transverse magnetic field induction heater.
The task of transverse magnetic field induction heating apparatus is, the heat insulation layer that the inwall of metal tube is made up of the heat-insulating material of suitable thickness all has heat-resistant insulating layer on the every electric conductor, and the space between the conductor should be poured into a mould heat resistant epoxide resin glue or be filled other inorganic insulating material.After electric conductor in the metal tube connected by suitable mode, draw 2-4 leads by insulator, i.e. the incoming line of transverse magnetic field heating element.In end socket cast heat resistant epoxide resin glue or other heat-resisting inorganic glue, guarantee that Oil, Water, Gas can not enter in the metal tube under hot conditions.In end socket, be provided with temperature relay, when the temperature of transverse magnetic field heating element surpasses rated temperature, play the power-off protection effect.
Characteristics of the present utility model are, adopt the transverse magnetic field heating principle, have very high natural power factor, and with carrying object and heater separately, no obvious voltage on the heater, fail safe are good.Because the radiating surface of heating element is exposed, can directly heat various different mediums, heat efficiency height.The heating element surface power density is lower, is difficult for burning under the normal condition, and the life-span is long.Adopt level Hermetic Package to have explosion prevention function.Heating element can in parallelly use, without building-out capacitor and frequency conversion equipment, and reliability height, low price.
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 shows transverse magnetic field heating element fundamental diagram.
Fig. 2 shows transverse magnetic field heating element equivalent circuit diagram.
Fig. 3 shows transverse magnetic field heater structure schematic diagram.
The A-A cutaway view of Fig. 4 diagrammatic sketch 3.
Among the figure, 1, metal tube; 2, heat insulation layer; 3, electric conductor; 4, end socket; 5, insulator; 6, lead; 7, flange; 8, temperature relay
Referring to accompanying drawing 1, generally with steel pipe or iron pipe, can use stainless steel tube during high frequency during metal tube 1 power frequency.Electric conductor 3 usefulness leads or copper pipe, aluminum pipe, end socket 4 sealings.I1 is the electric current that flows through electric conductor 3, its frequency 50Hz-50KHz.
Referring to accompanying drawing 2, the equivalence of transverse magnetic field heating element is the series circuit of an inductance L and resistance R, surveys its natural power factor about 0.95, is approximately ohmic load under the power frequency condition.This transverse magnetic field heating element can use in connection in series-parallel, and performance is not had influence.
Referring to accompanying drawing 3,4, the transverse magnetic field induction heating apparatus, one group of two isometric metal tube 1, the heat insulation layer 2 that inwall is made up of the heat-insulating material of suitable thickness, at the parallel built-in several heat-resistant insulating layer electric conductors 3 that have of the pars intermedia of every metal tube 1, two ends connect end socket 4, draw lead 6 in the insulator 5 of front-end end enclosure 4, and end socket 4 is provided with temperature relay 8.
Magnetic field induction heating element, metal tube 1 are the ferromagnetism metal tube, are group more than many.The transverse magnetic field heating element that metal tube 1 is formed is connected in series or also presses, single-phase or three-phase.
When heating power during greater than 20KW, adopt three groups of transverse magnetic field induction heating apparatuses to constitute the three-phase heaters, make electrical network keep balance.
Two end sockets 4 in the two ends of metal tube 1 prevent that media such as oil, gas, water from immersing in the metal tube 1, destroys insulation; Also be provided with a temperature-sensitive element in the end socket 4, temperature relay 8 plays the overtemperature prote effect.
During the work of transverse magnetic field heating element, the magnetic flux that metal tube 1 produces is by I
1Produce magnetic field, I
2It is the eddy current in the metal tube 1.Work as electric current I
1Produce magnetic field around when flowing through electric conductor 3, because the effect of metal tube 1, the magnetic line of force is concentrated in the tube wall and is formed radial magnetic field, i.e. transverse magnetic field.Magnetic flux produces axial eddy I in tube wall
2, because metal tube 1 has resistance R, I
2Make metal tube 1 heating, electric energy is converted into heat energy.
The transverse magnetic field induction heating apparatus has higher positive temperature coefficient, and input power is big during cold conditions, and input power reduces when hot.When supply voltage or ambient temperature rising, input power reduces, otherwise the input power increase has certain automatic constant-temperature performance.Because the influence of this specific character, heating element is not prone to overtemperature, burns.
Transverse magnetic field heating element technical performance:
Rated voltage: 36～440V;
Rated power: 100W～100KW;
Rated frequency: 50Hz～50KHz;
Specified serviceability temperature: 200～500 ℃;
The transverse magnetic field heating element, safe in utilization, the heat efficiency is high, is applicable to the heater of rated power 100W～100KW.
Claims (5)
1, a kind of transverse magnetic field induction heating apparatus, it is characterized in that one group two isometric metal tubes (1), the heat insulation layer that inwall is made up of the heat-insulating material of suitable thickness (2), at the parallel built-in several heat-resistant insulating layer electric conductors (3) that have of the pars intermedia of every metal tube (1), two ends connect end socket (4), in the insulator (5) of front-end end enclosure (4), draw lead (6), be provided with temperature relay (8) in the end socket (4).
2,, it is characterized in that metal tube (1) is the ferromagnetism metal tube according to the described magnetic field induction heating element of claim 1.
3,, it is characterized in that metal tube (1) is group more than many according to the described magnetic field induction heating element of claim 1.
4,, it is characterized in that the transverse magnetic field heating element that metal tube (1) is formed is connected in series or and connects according to the described magnetic field induction heating element of claim 1.
5,, it is characterized in that the transverse magnetic field heating element that metal tube (1) is formed is single-phase or three-phase according to the described magnetic field induction heating element of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211962 CN2472446Y (en) | 2001-03-03 | 2001-03-03 | Lateral magnet field inductive heat radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211962 CN2472446Y (en) | 2001-03-03 | 2001-03-03 | Lateral magnet field inductive heat radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2472446Y true CN2472446Y (en) | 2002-01-16 |
Family
ID=33631253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01211962 Expired - Fee Related CN2472446Y (en) | 2001-03-03 | 2001-03-03 | Lateral magnet field inductive heat radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2472446Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100490592C (en) * | 2003-11-29 | 2009-05-20 | 三星电子株式会社 | Composite cooking apparatus |
-
2001
- 2001-03-03 CN CN 01211962 patent/CN2472446Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100490592C (en) * | 2003-11-29 | 2009-05-20 | 三星电子株式会社 | Composite cooking apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |