CN216362365U

CN216362365U - Electric heating tube equipment

Info

Publication number: CN216362365U
Application number: CN202123146332.5U
Authority: CN
Inventors: 钟瑞云; 朱少雄; 唐洪记; 梁顺进
Original assignee: Zhaoqing City Feihong Machinery & Electrical Co ltd
Current assignee: Zhaoqing City Feihong Machinery & Electrical Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-04-22
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses an electric heating tube device, belonging to the technical field of electric heating devices, wherein the electric heating tube device comprises an outer sleeve, a plug, a first heat transfer sleeve and a plurality of electric heating wires; the shutoff is fixed in the tip of outer tube open end, and outer tube intussuseption is filled with the magnesia powder, and in first heat transfer sleeve pipe located the outer tube, first heat transfer sleeve pipe included a plurality of first profile of tooth strips along the even difference in periphery, and the heating wire is located in the first profile of tooth strip. Through evenly setting up the first profile of tooth strip of a plurality of in first heat transfer sleeve's periphery, set up first heat transfer hole simultaneously on first profile of tooth strip, increase the intraductal thermal area of first heat transfer sleeve pipe and overcoat, improve heat conduction efficiency, reduce the loss among the heat conduction process, in addition, the sheathed tube both ends of first heat transfer respectively with shutoff and outer tube butt, form a confined inner space, further prevent inside thermal loss, further improved heat conduction efficiency.

Description

Electric heating tube equipment

Technical Field

The utility model relates to the technical field of electric heating equipment, in particular to electric heating tube equipment.

Background

The heat exchange tube is one of the elements of the heat exchanger, is arranged in the cylinder body, is used for exchanging heat between two media, has high heat conductivity and good isothermal property, however, most of heat conduction tubes in the existing electric heating tube equipment are cylindrical sleeves, the heat conduction effect is poor, the heat loss is large, and the heat conduction efficiency is low.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide the electric heating tube equipment which is high in heat transfer efficiency, good in heat conduction effect and small in heat loss.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an electric heating tube device, which comprises an outer sleeve, a plug, a first heat transfer sleeve and a plurality of electric heating wires;

the plug is fixed in the tip of outer tube open end, the outer tube intussuseption is filled with the magnesia powder, first heat transfer sleeve pipe is located in the outer tube, first heat transfer sleeve pipe includes a plurality of first profile of tooth strips along the even difference in periphery, the heating wire is located in the first profile of tooth strip.

In one embodiment, the first tooth-shaped strip is provided with a plurality of first heat transfer holes for heat diffusion.

In one embodiment, a heat transfer fin is arranged between two adjacent first toothed bars.

In one embodiment, the heat transfer fins are provided with a plurality of second heat transfer holes for transferring heat.

In one embodiment, a second heat transfer sleeve is further included;

the second heat transfer sleeve is sleeved in the first heat transfer sleeve.

In one embodiment, the second heat transfer jacket comprises a plurality of evenly distributed second rack bars.

In one embodiment, the number of the second rack is the same as the number of the first rack, the second rack being partially located within the first rack.

In one embodiment, the second rack has a third heat transfer hole.

In one embodiment, the device further comprises a heat preservation pipe;

the heat preservation pipe is sleeved on the outer wall of the outer sleeve.

In one embodiment, the heat preservation pipe is provided with a plurality of heat outlet holes.

The utility model has the beneficial effects that:

one of them, evenly set up the first profile of tooth strip of a plurality of through the periphery at first heat transfer sleeve pipe, set up first heat transfer hole simultaneously on first profile of tooth strip, increase the interior thermal area of first heat transfer sleeve pipe and overcoat, improve heat conduction efficiency, reduce the loss among the heat conduction process, in addition, the both ends of first heat transfer sleeve pipe respectively with shutoff and outer tube butt, form a confined inner space, further prevent inside thermal loss, further improved heat conduction efficiency.

And a second heat transfer sleeve is arranged in the first heat transfer sleeve to form a sleeve-in-sleeve, and a heat flow space with a narrow space is formed between the first heat transfer sleeve and the second heat transfer sleeve, so that the heat flow space is reduced, and the heat loss caused by the large upper heat flow flowing space is reduced.

And thirdly, the outer wall of the outer sleeve is provided with the heat preservation pipe, so that the outward diffusion of heat in the outer sleeve is further reduced, and the heat conduction efficiency is further improved.

Drawings

FIG. 1 is a schematic view of an embodiment of an electrical heating apparatus according to the present invention;

fig. 2 is an assembled perspective view of a first heat transfer sleeve, a second heat transfer sleeve, and a heating wire provided in an embodiment of the present invention;

FIG. 3 is an enlarged view at A of FIG. 2 provided in accordance with an embodiment of the present invention;

fig. 4 is an assembled front view of the first heat transfer sleeve, the second heat transfer sleeve, and the heating wire provided in the embodiment of the present invention.

In the figure:

1-outer sleeve; 2, plugging; 3-a first heat transfer jacket; 31-a first toothed bar; 32-first heat transfer apertures; 33-heat transfer fins; 34-a second heat transfer aperture; 4-electric heating wire; 5-magnesium oxide powder; 6-a second heat transfer jacket; 61-a second rack; 62-a third heat transfer port; 7-a heat preservation pipe; 71-heat outlet holes; 8-tube seat; 9-terminal.

Detailed Description

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 to 4, the electrical heating tube apparatus provided by the present invention comprises an outer sleeve 1, a plug 2, a first heat transfer sleeve 3 and a plurality of heating wires 4; the electric heating wires 4 are connected in series, and a binding post 9 is led out and is used for being connected with a power supply. The connection part of the outer sleeve 1 and the plug 2 is sleeved with a tube seat 8, so that the connection between the outer sleeve 1 and the plug 2 is firmer. A sealing gasket is arranged between the plug 2 and the opening end of the outer sleeve 1, so that a sealed space is formed inside the outer sleeve 2. The plug 2 is made of silica gel. The plug 2 is fixed at the end part of the opening end of the outer sleeve 1, the outer sleeve 1 is filled with magnesia powder 5, and the outer sleeve is in a tubular shape with an opening at one end and a seal at the other end. The first heat transfer sleeve 3 is arranged in the outer sleeve 1, and two ends of the first heat transfer sleeve 3 are respectively abutted with the plug 2 and the outer sleeve 1 to form a closed inner space. The first heat transfer sleeve 3 comprises a plurality of first toothed bars 31 uniformly and respectively arranged along the periphery, the teeth of the first toothed bars 31 are trapezoidal, and two adjacent first toothed bars 31 have a certain distance for accommodating the heat transfer fins 33. The heat transfer fins 33 are fixed between the adjacent two first rack bars 31 by welding or integral molding. The heating wire 4 is arranged in the first toothed strip 31, and the heating wire 4 can be a resistance wire. The first tooth-shaped strip 31 is provided with a plurality of first heat transfer holes 32 for heat diffusion. The first heat transfer holes 32 are preferably circular, so that the processing is convenient, the area of the first tooth-shaped strips 31 and the heat inside the sleeve can be increased, and the heat transfer efficiency is improved. A plurality of first heat transfer holes 32 are arranged along the length direction equidistance of first profile of tooth strip 31, make heat-conduction more even, and the inside heat distribution of sleeve pipe is more even, reduces the heat loss that the heat transfer brought. A heat transfer fin 33 is arranged between two adjacent first toothed bars 31. The heat transfer fins 33 are provided with a plurality of second heat transfer holes 34 for heat transfer, the second heat transfer holes 34 are preferably circular holes, and the plurality of second heat transfer holes 34 are arranged at equal intervals along the length direction of the heat transfer fins 33 and are distributed over the whole heat transfer fins 33. The electrothermal tube equipment also comprises a second heat transfer sleeve 6; the second heat transfer sleeve 6 is sleeved in the first heat transfer sleeve 3. The shape of the second heat transfer jacket 6 is similar to the shape of the first heat transfer jacket 3. A heat flow space with a narrow space is formed between the first heat transfer sleeve 3 and the second heat transfer sleeve 6, so that the heat flowing space is reduced, and the heat loss caused by the larger space of the upper heat flow flowing is reduced. The second heat transfer jacket 6 comprises a plurality of evenly distributed second rack bars 61, the second rack bars 61 having a trapezoidal cross-section. The number of the second rack 61 is the same as the number of the first rack 31, the second rack 61 is partially located in the first rack 31, and the heating wire 4 may be disposed in the second rack 61. Third heat transfer hole 62 has been seted up on the second profile of tooth strip 61, and third heat transfer hole 62 is the circular port preferably, easily processing, and third heat transfer hole 62 is arranged along the length direction equidistance of second profile of tooth strip 61.

Further preferably, the electrothermal tube equipment also comprises a heat preservation tube 7; the heat preservation pipe 7 is sleeved on the outer wall of the outer sleeve 1. The heat preservation pipe 7 is provided with a plurality of heat outlet holes 71. The heat preservation pipe 7 is made of heat preservation materials, the heat preservation pipe 7 is arranged on the outer wall of the outer sleeve 1, heat in the outer sleeve 1 is further reduced from diffusing outwards, and heat conduction efficiency is further improved.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. An electrothermal tube equipment, characterized in that:

comprises an outer sleeve (1), a plug (2), a first heat transfer sleeve (3) and a plurality of electric heating wires (4);

shutoff (2) are fixed in the tip of outer tube (1) open end, outer tube (1) intussuseption is filled with magnesia powder (5), first heat transfer sleeve pipe (3) are located in outer tube (1), first heat transfer sleeve pipe (3) include a plurality of first profile of tooth strips (31) evenly respectively along the periphery, heating wire (4) are located in first profile of tooth strip (31).

2. The electrothermal tube apparatus of claim 1, wherein:

the first tooth-shaped strip (31) is provided with a plurality of first heat transfer holes (32) for heat diffusion.

3. The electrothermal tube apparatus of claim 1, wherein:

a heat transfer fin (33) is arranged between every two adjacent first tooth-shaped strips (31).

4. Electrical heated tube apparatus according to claim 3 wherein:

the heat transfer fins (33) are provided with a plurality of second heat transfer holes (34) for heat transfer.

5. The electrothermal tube apparatus of claim 2, wherein:

also comprises a second heat transfer sleeve (6);

the second heat transfer sleeve (6) is sleeved in the first heat transfer sleeve (3).

6. The electrothermal tube apparatus of claim 5, wherein:

the second heat transfer jacket (6) comprises a plurality of evenly distributed second rack bars (61).

7. The electrothermal tube apparatus of claim 6, wherein:

the number of the second toothed racks (61) is the same as the number of the first toothed racks (31), the second toothed racks (61) being partially located within the first toothed racks (31).

8. The electrothermal tube apparatus of claim 6, wherein:

and a third heat transfer hole (62) is formed in the second rack (61).

9. The electrothermal tube apparatus of claim 1, wherein:

also comprises a heat preservation pipe (7);

the heat preservation pipe (7) is sleeved on the outer wall of the outer sleeve (1).

10. The electrical heated tube device of claim 9, wherein:

the heat preservation pipe (7) is provided with a plurality of heat outlet holes (71).