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Electromagnetic induction heating device

A technology of electromagnetic induction heating and heat-absorbing cavity, which is applied in induction heating, water heaters, fluid heaters, etc. It can solve the problems of unused heat on the outer wall of the inner tube, high temperature of the electromagnetic induction heating coil, and uneven heating of the liquid heat medium etc. to reduce temperature, save winding time, and prevent corrosion

Pending Publication Date: 2019-03-01
长春市龙阳电气设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, during the heating process, the temperature of the liquid heat medium in the center of the inner tube is lower than the temperature of the liquid heat medium near the inner wall of the inner tube. The heat from the outer wall of the inner tube is not utilized; the temperature of the electromagnetic induction heating coil is high, and blowouts often occur; the outer wall of the outer tube is relatively smooth, and it takes time and effort to wind the electromagnetic induction heating coil; the inner tube is severely corroded by the liquid heat medium and has a short service life

Method used

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Embodiment 1

[0029] see Figure 1~6 , in an embodiment of the present invention, an electromagnetic induction heating device includes an electromagnetic induction heating body, wherein the electromagnetic induction heating body includes a cross-shaped heat conducting fin 8, an inner tube 1, an inner tube through hole 7, an inner tube Pipe external thread 13, inner and outer pipe heat-absorbing cavity 5, S-shaped deflector 6, outer pipe 2, inner and outer pipe sealing and fixing parts 3, inner and outer pipe sealing and fixing parts internal thread 10, high temperature resistant waterproof gasket 11, outer pipe spiral The lower wire groove 9, the electromagnetic induction heating coil 4 and the water inlet and outlet 12 of the inner pipe, the two ends of the inner pipe 1 are respectively opened with three circular inner pipe flow holes 7 near the outer thread 13 of the inner pipe, and the cross-shaped The heat conduction fins 8 are tightly fitted on the inner wall of the inner tube 1, the i...

Embodiment 2

[0038] The difference between this embodiment and embodiment 1 is:

[0039] The electromagnetic induction heating coil 4 is composed of a high-frequency electromagnetic wire with a wire diameter of φ0.29 mm² twisted by multiple insulated high-temperature resistant electromagnetic wires.

[0040] The inner and outer walls of the inner tube 1 , the cross-shaped heat conducting fins 8 and the surface of the S-shaped deflector 6 are sprayed with an anti-corrosion and heat-conducting coating 14 , and the inner wall of the outer tube 2 is sprayed with an anti-corrosion and heat-insulating coating 15 .

[0041] The working principle of the present invention: the inner and outer walls of the inner tube 1 and the surface of the cross-shaped heat conduction fins 8 are sprayed with an anti-corrosion heat conduction coating 14 to prevent corrosion by the liquid heat medium and prolong the service life; on the inner wall of the outer tube 2 Spraying the anti-corrosion and thermal insulatio...

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Abstract

The invention discloses an electromagnetic induction heating device which comprises an electromagnetic induction heating body. Three perfectly round inner pipe through-flow holes are correspondingly formed in the position, close to an inner pipe outer thread, of each of two ends of an inner pipe of the electromagnetic induction heating body; a cross-type heat conducting fin is arranged on the inner wall of the inner pipe in a close fit mode; an inner and outer pipe heat absorbing chamber is formed by an inner and outer pipe sealing fixing part with the outer wall of the inner pipe and the inner wall of an outer pipe; an S-shaped guiding plate is arranged in the inner and outer pipe heat absorbing chamber in a close fit mode; an electromagnetic heating coil winds around the outer wall of the outer pipe; two ends of the inner pipe serve as a water inlet and a water outlet of the electromagnetic induction heating body; and the inner pipe is connected with an inner thread of the inner andouter pipe sealing fixing part through the inner pipe outer thread. By arranging the cross-type heat conducting fin on the inner wall of the inner pipe, the heat conducting area is larger, and the heat utilization efficiency is improved. By forming an S-shaped liquid heating medium channel in the inner and outer pipe heat absorbing chamber through the S-shaped guiding plate, the heat generated bythe outer wall of the inner pipe is fully absorbed, and the heat utilization efficiency is improved.

Description

technical field [0001] The invention relates to the field of electromagnetic induction heating, in particular to an electromagnetic induction heating device. Background technique [0002] The electromagnetic induction heating device is a component used to heat liquid heat media, and can heat liquid heat media such as water and heat transfer oil. In recent years, electromagnetic induction heating technology has developed rapidly in the domestic heating field, and many electromagnetic induction heating devices have appeared on the market. Looking at these electromagnetic induction heating devices, their basic structure is: the inner tube is high magnetic permeability, high thermal conductivity The circular metal tube is used as the cavity for heating the liquid heat medium. The inner tube is covered with heat-insulating material, and the outer tube is inserted outside the heat-insulating material. The metal pipe is wound with an electromagnetic induction heating coil on the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H1/14F24H9/18H05B6/02
CPCH05B6/02F24H1/142F24H9/1818F24H2250/08
Inventor 王福青
Owner 长春市龙阳电气设备有限公司