CN217741935U

CN217741935U - Electric heating tube

Info

Publication number: CN217741935U
Application number: CN202221470334.1U
Authority: CN
Inventors: 罗康钦; 罗国莹
Original assignee: Changshun Dansuya Rosa Roxbunghii Manor Co ltd
Current assignee: Changshun Dansuya Rosa Roxbunghii Manor Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-11-04
Anticipated expiration: 2032-06-13

Abstract

The utility model discloses an electrothermal tube, include: an electric heating wire; an inner metal sheath, which is sleeved outside the electric heating wire; the insulating heat conduction material is filled between the inner metal sheath and the heating wire; an outer metal sheath disposed outside the inner metal sheath. The problems that in the prior art, heat exchange efficiency is low, heating is uneven and local scorching is easy to cause are solved.

Description

Electric heating tube

Technical Field

The utility model relates to an electrothermal tube belongs to heating device technical field.

Background

In the process of food and medicine processing, liquid materials are heated to a set temperature to evaporate the liquid. However, in the existing device, a heater is used for directly heating liquid, for example, a heating wire is arranged in a container for heating the liquid, when the heating means is used for heating, the heat transfer in the liquid is mainly realized through liquid convection, but the heat transfer realized through the liquid convection has low heat exchange efficiency because the contact area with the heater is small, so that the problems of uneven heating and local scorching are easily caused.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: an electrothermal tube is provided to overcome the disadvantages of the prior art.

The technical scheme of the utility model is that: an electrical heating tube comprising:

an electric heating wire;

the inner metal sheath is sleeved outside the electric heating wire;

the insulating heat conduction material is filled between the inner metal sheath and the heating wire;

an outer metal sheath disposed outside the inner metal sheath.

Preferably, the inner metal sheath and the outer metal sheath are made of stainless steel.

Preferably, the insulating heat conduction material is heat conduction silica gel.

Further, still include:

the outer surface of the inner metal sheath is provided with radiating fins distributed along the length direction of the inner metal sheath, and the radiating fins are positioned between the outer metal sheath and the inner metal sheath.

The utility model has the advantages that:

the utility model discloses a liquid flows in outer metal sheath inner loop and carries out the heat exchange and heaies up, compares traditional convection type heat exchange, and is bigger with the heating device contact surface, and heat exchange efficiency is higher to make liquid be heated more with even, liquid moves in outer metal sheath, makes the heat can not concentrate on a certain point, avoids the too high scorching material of local temperature.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

Example 1 was carried out:

referring to fig. 1, an electric heating tube includes: 9-1 parts of electric heating wires; the inner metal sheath 9-3 is sleeved outside the electric heating wire 9-1, and the inner metal sheath 9-3 is sleeved outside the electric heating wire 9-1; the electric heating wire is characterized by comprising an inner metal sheath 9-3, an electric heating wire 9-1 and an insulating heat conduction material 9-2, wherein the insulating heat conduction material 9-2 is filled between the inner metal sheath 9-3 and the electric heating wire 9-1; the outer surface of the inner metal sheath 9-3 is provided with the radiating fins 9-4 distributed along the length direction of the inner metal sheath 9-3; the heat dissipation structure comprises an outer metal sheath 2, the outer metal sheath 2 is arranged outside an inner metal sheath 9-3, and heat dissipation fins 9-4 are located between the outer metal sheath 2 and the inner metal sheath 9-3.

Carry out the heat exchange through liquid outer metal sheath 2 inner loop flow and heat up, compare traditional convection type heat exchange, it is bigger with heating device 9 contact surface, heat exchange efficiency is higher to make liquid be heated more with even, liquid moves in outer metal sheath 2, makes the heat can not concentrate on a certain point, avoids the too high scorching material of local temperature.

When the electric heating wire is used, the electric heating wire 9-1 generates heat to heat liquid between the outer metal sheath 2 and the inner metal sheath 9-3, the electric heating wire 9-1 is protected by the metal sheath 9-3, and the heat conduction efficiency is improved by the heat dissipation fins 9-4.

Preferably, the inner metal sheath 9-3 and the outer metal sheath 2 are made of stainless steel.

Stainless steel is inexpensive and corrosion resistant.

Preferably, the insulating and heat conducting material 9-2 is heat conducting silica gel.

The heat-conducting silica gel has good insulating property and heat-conducting property.

The foregoing is a more detailed description of the present invention, taken in conjunction with specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. An electrical heating tube, comprising:

an electric heating wire (9-1);

the inner metal sheath (9-3), the said inner metal sheath (9-3) is fitted over the heating wire (9-1);

the insulating heat conduction material (9-2) is filled between the inner metal sheath (9-3) and the electric heating wire (9-1);

the outer metal sheath (2), the outer metal sheath (2) is arranged outside the inner metal sheath (9-3).

2. Electrical heating tube according to claim 1, characterised in that the inner metal sheath (9-3) and the outer metal sheath (2) are made of stainless steel.

3. The electrical heating tube according to claim 1, characterized in that the insulating and heat conducting material (9-2) is a heat conducting silicone.

4. The electrical heating tube according to claim 1, further comprising:

the radiating fins (9-4) are arranged on the outer surface of the inner metal sheath (9-3) and distributed along the length direction of the inner metal sheath (9-3), and the radiating fins (9-4) are located between the outer metal sheath (2) and the inner metal sheath (9-3).