CN106352392A

CN106352392A - Electric heater using electromagnetic induction heating

Info

Publication number: CN106352392A
Application number: CN201610981853.7A
Authority: CN
Inventors: 何树香
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-11-03
Filing date: 2016-11-03
Publication date: 2017-01-25

Abstract

The invention discloses an electric heater using electromagnetic induction heating. The electric heater comprises a steel electric heater shell, wherein the bottom of the electric heater shell is of a tubular structure; thinner steel tubes are arranged at the upper part of the electric heater shell; a plurality of upper and lower vertical steel tubes are connected together; fins are welded among the vertical steel tubes, so that heat dissipation is facilitated; a ferrite stainless steel tube is welded inwards from one end of a bottom steel tube and is used as an induction heating steel tube; the outer diameter of the steel tube is smaller than the inner diameter of the tubular structure of the bottom steel tube, so that the exterior of the heating steel pipe is filled with heat conduction oil; the length of the steel pipe is slightly smaller than the length of the electric heater shell; the inner end of the steel pipe is closed; an integrated high-frequency induction coil is inserted into the induction heating steel pipe; the coil is capable of generating heat due to high-frequency induction current and eddy current generated by the heating steel pipe, so that the heat conduction oil at the exterior of the heating steel pipe can be rapidly heated. Through the adoption of high-frequency induction heating, the heating speed is rapid; the heating is carried out in the heating steel pipe; the electric heat conversion efficiency is higher; the electromagnetic radiation is reduced to minimum; the electric heater is relatively safe and reliable to use.

Description

A kind of electric heater of electromagnetic induction heating

Technical field

This patent is related to electromagnetic induction heating technology field, especially relates to a kind of electric heater of electromagnetic induction heating.

Background technology

Traditional electric heater；There are electric heating wire type, ptc heated type, Halogen light tubular type, heating wire radiant type, oil-filled electricity at present Heat pipe-type etc., generally existing that intensification is slow, power consumption is big, electric conversion efficiency is low, exist electric leakage potential safety hazard the shortcomings of, A kind of electric heater of electromagnetic induction heating；Using filling, conduction oil conducts heat, insertion electromagnetic induction heating coil carries out sensing and adds Heat, firing rate are fast, electric conversion efficiency is high, because induction coil heats, substantially reduces in induction heating pipe induced inside The infringement to human body for the electromagnetic radiation, and bottom do not have threaded port, avoid conduction oil leakage generation.

Content of the invention

The purpose of this patent is to exist for traditional electric heater that intensification is slow, electric conversion efficiency is low, has electric leakage safety hidden Suffer from, at the time length screw thread of electric heating tube, have the shortcomings that the phenomenon of oil leak；And a kind of electric heating of the electromagnetic induction heating providing Device.

This patent solves its technical problem and be employed technical scheme comprise that；It is pipe using the electric heater shell of steel, bottom The joint steel pipe that shape structure, top are carefully a little steel pipes, upper and lower steel pipe has many settings welds together, between joint steel pipe, Weld fin, radiated with profit, the joint steel pipe weld perforate in advance of upper and lower steel pipe, a ferrum is inwardly welded in bottom steel pipe one end Ferritic stainless steel tube, less than bottom pipe diameter as sensing heating steel pipe, outer diameter of steel pipes, so that being full of outside heating steel pipe Conduction oil, more slightly shorter than electric heater shell, the inner closing of length of steel pipe, make a monoblock type radio-frequency induction coil, insertion sensing adds In hot steel pipe, coil is produced vortex and is generated heat rapidly, heats conduction oil outside steel pipe by high frequency induction current, heating steel pipe It is heated rapidly, reach the purpose making electric heater produce heat heating, load coil assembly；Using high-temperature electric magnet-wire in mould Tool coiling above, reach the requirement number of turns after, with high-temperature silica gel embedding be an entirety, afterwards coil outer irrigate silicic acid aluminium paste Expect for heat-barrier material, require coil to uniform external diameter and ensure consistent size, assembly external diameter is can smoothly insert in heating steel pipe It is defined, because induction coil heats in sensing heating steel duct, considerably reduce electromagnetic radiation, high-temperature electric magnet-wire is high pressure There is one layer of thermal insulation heat proof material insulating barrier, coil outer silica gel sealing, outside, serve good insulating effect, thereby guarantee that High electric insulation, effectively increase security performance.

The having the beneficial effects that of this patent: fast using high-frequency induction heating, firing rate, due to adding in heating steel duct Heat；Electric conversion efficiency is higher and electromagnetic radiation is preferably minimized, and bottom does not have threaded port, avoids leakage There are, effectively raise the heats of electric heater.

Brief description

The invention will be further described below in conjunction with the accompanying drawings.

Accompanying drawing 1 is the appearance assumption diagram of this patent.

Accompanying drawing 2 is the front appearance structure chart of this patent.

Accompanying drawing 3 is the side appearance assumption diagram of this patent.

Accompanying drawing 4 is the coil block sectional structure chart of this patent.

Accompanying drawing 5 is the coil block end face structure figure of this patent.

Accompanying drawing 6 is the circuit theory diagrams of this patent.

In figure: 1. top steel pipe, 2. bottom steel pipe, 3. joint steel pipe, 4. fin, 5. filling opening, 6. plug, 7. sensing adds Hot steel pipe, 8. controller housing, 9. control panel, 10. castor fixation clamp, 11. castors, 12. temperature insulating material layers, 13. silica gel Sealing layer, 14. induction coils, 15. induction coil leads, 16 coil block endoporus.

Specific embodiment

This patent includes in accompanying drawing: electric heater shell is by top steel pipe (1), bottom steel pipe (2), joint steel pipe (3), fin (4), filling opening (5), sensing heating steel pipe (7) weld together and are formed, top steel pipe (1), bottom steel pipe (2) be connected steel Pipe (3) weld needs perforate in advance, and heating coil sets are by induction coil (14), induction coil lead (15), silica gel sealing layer (13), temperature insulating material layer (12) sealing is integrated and is formed, and the present invention is inserted by electric heater shell, sensing heating steel pipe (7) endoporus Enter heating coil sets, connect controller housing (8), the fixing control panel (9) of controller housing (8) outer upper ends, internal peace Dress high-frequency induction heating controller, castor fixation clamp (10) is fixed on electric heater outer casing underpart with castor (11) and assembles Formed together.

This patent adopts the electric heater shell of steel, and outer casing bottom steel pipe (2) is tubular structure, top steel pipe (1) is thin A little steel pipes, joint steel pipe (3) have many setting steel pipes and outer casing bottom steel pipe (2), top steel pipe (1) to weld together, on Portion's steel pipe (1), bottom steel pipe (2) and the perforate in advance of joint steel pipe (3) weld, sensing heating is welded in bottom steel pipe (2) one end Steel pipe (7)；Sensing heating steel pipe (7) external diameter, is flowed with sharp heat-conducting oil heating through smaller than in bottom steel pipe (2), sensing heating The inner closing of steel pipe (7), outer end and the welding of bottom steel pipe (2) end, top steel pipe (1) upper end side welding oil filler (5), even Connect steel pipe (3) two ends welding fin (4) with profit radiating, electric heater outer casing bottom installs castor fixation clamp (10) rigid castors (11) to be moved easily, electric heater outer casing bottom steel pipe (2) inserts load coil assembly, and electric heater shell one end is installed solid Determine controller housing (8), controller housing (8) internal installation electromagnetic induction heating controller, connect induction coil lead (15), Control panel (9) is installed outside controller housing (8), load coil assembly is adopted by after the rich system of high-temperature electric magnet-wire, molding Silica gel molding, uniformly become one structure it is desirable to coil is to uniform external diameter using aluminium silicate slurry perfusion in outside afterwards And guarantee consistent size, assembly external diameter is defined by can smoothly insert in heating steel pipe, because induction coil is in sensing heating steel pipe Internal heating, considerably reduce electromagnetic radiation, high-temperature electric magnet-wire be high-voltage insulation layer, coil outer silica gel sealing, outside have One layer of thermal insulation heat proof material, serves good insulating effect, thereby ensures that high electric insulation, effectively increases safety Performance.

Claims

1. a kind of electric heater of electromagnetic induction heating it is characterised in that: by electric heater shell, sensing heating steel pipe (7) endoporus insert Enter heating coil sets, connect controller housing (8), the fixing control panel (9) of controller housing (8) outer upper ends, internal peace Dress high-frequency induction heating controller, castor fixation clamp (10) is fixed on electric heater outer casing underpart with castor (11) and assembles Formed together.Wherein electric heater shell is by top steel pipe (1), bottom steel pipe (2), joint steel pipe (3), fin (4), liquid feeding Mouthful (5), sensing heating steel pipe (7) weld together and are formed, and top steel pipe (1), bottom steel pipe (2) are welded with joint steel pipe (3) Connect place need perforate in advance, heating coil sets by induction coil (14), induction coil lead (15), silica gel sealing layer (13), every Adiabator layer (12) sealing is integrated and is formed.

2. the electric heater of a kind of electromagnetic induction heating according to claim 1, is further characterized in that: bottom steel pipe (2) End welding sensing heating steel pipe (7)；Sensing heating steel pipe (7) external diameter than in bottom steel pipe (2) through smaller, sensing heating steel pipe (7) adopt ferrite stainless steel material, the inner closing of sensing heating steel pipe (7), outer end and the welding of bottom steel pipe (2) end.

3. the electric heater of a kind of electromagnetic induction heating according to claim 1, is further characterized in that: load coil group In part insertion sensing heating steel pipe (7).