CN220173433U - Electrothermal tube - Google Patents
Electrothermal tube Download PDFInfo
- Publication number
- CN220173433U CN220173433U CN202321576696.3U CN202321576696U CN220173433U CN 220173433 U CN220173433 U CN 220173433U CN 202321576696 U CN202321576696 U CN 202321576696U CN 220173433 U CN220173433 U CN 220173433U
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- CN
- China
- Prior art keywords
- stainless steel
- steel sleeve
- electrode
- electrothermal tube
- sleeve
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- 239000010935 stainless steel Substances 0.000 claims abstract description 46
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 46
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 24
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 abstract description 29
- 238000007789 sealing Methods 0.000 abstract description 13
- 238000009413 insulation Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Resistance Heating (AREA)
Abstract
The utility model provides an electric heating tube, and relates to the technical field of heating tubes. The utility model adopts the technical scheme that the stainless steel sleeve is completely wrapped outside the magnesium oxide rod, the electrode and the electric heating wire which are mutually connected are arranged inside the magnesium oxide rod, one end of the electrode extends out of the stainless steel sleeve, the electrode sleeve is provided with the insulating sealing sleeve, the insulating sealing sleeve penetrates through the stainless steel sleeve, the fixing piece is arranged outside the stainless steel sleeve, and the fixing piece is provided with the mounting hole.
Description
Technical Field
The utility model relates to the technical field of heating pipes, in particular to an electric heating pipe.
Background
The electric heating tube is a tubular electric heating element, which is composed of metal tube spiral resistance wire, crystalline magnesia powder and the like, and has the characteristics of excellent overall performance, long service life and easy maintenance.
An electric heating tube of current application number CN202220965517.4, comprising: the electric heating device comprises an outer tube, an electric heating wire, a first leading-out rod, a second leading-out rod, an insulating heat conducting material layer and an insulating sealing fixing assembly fixed at the port of the outer tube, wherein the insulating heat conducting material layer comprises a main insulating heat conducting area and a filling area, and the density of the insulating heat conducting material of the main insulating heat conducting area is greater than that of the filling area. However, the inventor finds that the electric heating tube has no fixed structure when in use and cannot be well fixedly connected with other devices.
Accordingly, the prior art is in need of improvement.
Disclosure of Invention
The utility model aims to provide an electric heating tube, which can solve the defects of the prior art and has the beneficial effects of easy fixation and safe use.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the electric heating tube comprises a magnesium oxide rod, wherein the stainless steel sleeve is completely wrapped outside the magnesium oxide rod, an electrode and an electric heating wire which are connected with each other are arranged inside the magnesium oxide rod, one end of the electrode extends out of the stainless steel sleeve, the electrode sleeve is provided with an insulating sealing sleeve, the insulating sealing sleeve penetrates through the stainless steel sleeve, a fixing piece is arranged outside the stainless steel sleeve, and a mounting hole is formed in the fixing piece.
Further, in the present utility model, one end portion of the electrode is provided with a tab provided with a wiring hole.
Further, in the present utility model, the stainless steel sleeve is provided with heat conducting fins on the outside.
Further, in the present utility model, the heat conducting fin is a copper sheet.
Further, in the present utility model, the heat conductive fin is a spiral heat conductive fin.
Further, in the present utility model, the heat conducting fin is provided with a heat conducting sleeve sleeved on the stainless steel sleeve, the stainless steel sleeve is provided with a threaded portion, and the threaded portion is provided with a nut abutting against the heat conducting sleeve.
Further, in the utility model, an insulating heat-resistant head is arranged at one end of the stainless steel sleeve close to the electrode.
Further, in the present utility model, the insulating thermal head is a ceramic head.
The utility model has at least the following advantages or beneficial effects:
the electric heating tube is installed in the equipment needing heating through the fixing piece, and when the electric heating tube is installed, the installation hole of the fixing piece is aligned with a screw hole reserved in the equipment, and then the electric heating tube is fixed by inserting a screw. When the electric heating wire is used, the electrodes are electrified, electric energy is converted into heat energy after the electric heating wire passes through the electric heating wire, and the heat is transferred to the surface of the stainless steel sleeve through the magnesium oxide rod, so that a heating effect is achieved. The magnesium oxide rod and the insulating sealing sleeve have the function of a junction edge, can avoid electric leakage accidents, and have a good safety function.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of an electrothermal tube according to an embodiment of the present utility model;
FIG. 2 is a schematic front view of an electrothermal tube according to an embodiment of the present utility model;
fig. 3 is a schematic front view of another electrothermal tube according to an embodiment of the present utility model.
Icon: the heat-resistant insulation device comprises a 1-magnesium oxide rod, a 2-electrode, a 201-wiring lug, a 202-wiring hole, a 3-heating wire, a 4-stainless steel sleeve, a 401-threaded part, a 402-nut, a 5-insulation sealing sleeve, a 6-fixing piece, 7-heat-conducting fins, a 701-heat-conducting sleeve and an 8-insulation heat-resistant head.
Detailed Description
Example 1
Referring to fig. 1 and 2, an electrothermal tube according to an embodiment of the utility model is shown, and the specific structure is as follows.
As shown in fig. 1 and 2, the electrothermal tube of the present embodiment is mainly composed of four parts of a magnesium oxide rod 1, a stainless steel sleeve 4, an electrode 2 and an electrothermal wire 3.
Further, the stainless steel sleeve 4 is made of stainless steel materials, the appearance is in a cylindrical shape, a cylindrical cavity is formed in the stainless steel sleeve 4, the magnesium oxide rod 1 is arranged in the cavity, and the stainless steel sleeve 4 wraps the magnesium oxide rod 1 to play a role in sealing.
Further, the magnesium oxide rod 1 is made of magnesium oxide powder, and has good insulation property and thermal conductivity. As shown in fig. 1, one ends of two electrodes 2 extend from the left end of a stainless steel sleeve 4, the other ends of the two electrodes 2 are inserted into a magnesium oxide rod 1, heating wires 3 are arranged on the two electrodes 2 and also positioned in the magnesium oxide rod 1, when the electrodes 2 are electrified, the heating wires 3 have current to pass through, and the heating wires 3 convert electric energy into heat to release a large amount of heat.
It should be noted that, like the electric heating tube in the prior art, as shown in fig. 1 and 2, an insulating sealing sleeve 5 is sleeved on the surface of the electrode 2, and the insulating sealing sleeve 5 wraps the electrode 2 passing through the left end of the stainless steel sleeve 4 to play an insulating role, so as to avoid the conduction of the stainless steel sleeve 4.
As shown in fig. 2, the fixing piece 6 is sleeved on the stainless steel sleeve 4, and the stainless steel sleeve 4 and the fixing piece are welded together. The mounting holes are formed in the fixing piece 6, when the fixing piece is required to be mounted, the mounting holes in the fixing piece 6 are aligned with screw holes reserved in the device, and then screws are inserted for fixing, so that the fixing mounting is easily realized.
In order to facilitate the connection of the electric heating tube to the electric wire, as shown in fig. 2, a lug 201 is mounted on the top of the electrode 2 and is fixed by welding. The wiring hole 202 is formed in the wiring lug 201, and the wires can be easily connected through the wiring hole 202, so that the use is very convenient.
Example 2
Referring to fig. 3, another electrothermal tube is provided in this embodiment, and the electrothermal tube in this embodiment is substantially the same as the electrothermal tube in embodiment 1, and is mainly different in that a heat conducting fin 7 and an insulating heat-resistant head 8 are installed, and the specific structure is as follows.
As shown in fig. 3, a heat conducting sleeve 701 is disposed at the center of the heat conducting fin 7, and the shape of the heat conducting fin 7 may be a piece of ring. In other embodiments, the heat conducting fins 7 may be helical heat conducting fins 7, similar in shape to a helical plate.
The material of the heat conducting fin 7 can be copper sheet, and the heat conducting sleeve 701 can also be copper material or copper alloy, so that the heat conducting sleeve has good heat conducting property. The inner diameter of the heat conducting sleeve 701 is the same as the outer diameter of the stainless steel sleeve 4, and the heat conducting sleeve 701 can be sleeved on the stainless steel sleeve 4.
Further, as shown in fig. 3, the stainless steel sleeve 4 is provided with an upper threaded portion 401 and a lower threaded portion 401, the threaded portion 401 has an external thread, two nuts 402 are respectively mounted on the two threaded portions 401, and the two nuts 402 respectively abut against the upper end and the lower end of the heat conducting sleeve 701. When the electric heating tube is used for heating water, a large amount of scale is formed on the surfaces of the heat conduction fins 7 and the heat conduction sleeve 701 after long-time use, or certain loss is formed on the heat conduction fins 7 and the heat conduction sleeve 701 after long-time use of some special liquid, the nut 402 is unscrewed, the heat conduction fins 7 and the heat conduction sleeve 701 are convenient to replace, and the electric heating tube is very convenient to use.
As shown in fig. 3, the insulating thermal head 8 may be a ceramic head made of a ceramic material. The insulating heat-resistant head 8 is fixed at the top end of the stainless steel sleeve 4, and the electrode 2 passes through the insulating heat-resistant head 8. The fixing mode can be selected to be clamped, for example, a groove is formed in the top end of the stainless steel sleeve 4, and the insulating heat-resistant head 8 is clamped into the groove for fixing. The insulating heat-resistant head 8 plays a role in heat insulation, and high temperature generated by an electric heating tube is prevented from influencing the electric wires connected with the electrode 2.
The working principle of the electric heating tube is as follows:
the electrothermal tube is installed in the equipment that needs heating through stationary blade 6, and the mounting hole of stationary blade 6 aims at the screw that the equipment is inside reserved when installing, then inserts the screw fixation. When the electric heating device is used, the electrode 2 is electrified, the electric energy is converted into heat energy after the electric heating wire 3 is electrified, and the heat is transferred to the surface of the stainless steel sleeve 4 through the magnesium oxide rod 1, so that a heating effect is achieved. The magnesium oxide rod 1 and the insulating sealing sleeve 5 have the function of a junction edge, can avoid electric leakage accidents, and have a good safety function.
In summary, the utility model provides an electric heating tube, which comprises a magnesium oxide rod 1, wherein the outside of the magnesium oxide rod 1 is completely wrapped with a stainless steel sleeve 4, an electrode 2 and an electric heating wire 3 which are mutually connected are arranged in the magnesium oxide rod 1, one end of the electrode 2 extends out of the stainless steel sleeve 4, the electrode 2 is sleeved with an insulating sealing sleeve 5, the insulating sealing sleeve 5 penetrates through the stainless steel sleeve 4, a fixing piece 6 is arranged outside the stainless steel sleeve 4, and a mounting hole is formed in the fixing piece 6. One end portion of the electrode 2 is provided with a tab 201, and the tab 201 is provided with a tab hole 202. The stainless steel sleeve 4 is provided with heat conducting fins 7 on the outside. The heat conducting fin 7 adopts a copper sheet. The heat conduction fins 7 are spiral heat conduction fins 7. The heat conduction fin 7 is provided with a heat conduction sleeve 701 fitted over the stainless steel sleeve 4, the stainless steel sleeve 4 is provided with a screw portion 401, and the screw portion 401 is provided with a nut 402 abutting the heat conduction sleeve 701. An insulating heat-resistant head 8 is arranged at one end of the stainless steel sleeve 4 close to the electrode 2. Therefore, the electric heating tube provided by the utility model has the beneficial effects of easiness in fixing and safety in use.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. The utility model provides an electrothermal tube, its characterized in that includes the magnesium oxide stick, the outside of magnesium oxide stick is wrapped up completely has stainless steel sleeve pipe, the inside of magnesium oxide stick is provided with interconnect's electrode and heating wire, the one end of electrode stretches out stainless steel sleeve pipe, the electrode cover is equipped with insulating seal cover, insulating seal cover passes stainless steel sleeve pipe, stainless steel sleeve pipe's outside is provided with the stationary blade, the stationary blade is equipped with the mounting hole.
2. An electrothermal tube according to claim 1, wherein one end of the electrode is provided with a tab, the tab being provided with a wire hole.
3. The electrical heating tube of claim 1, wherein the stainless steel sleeve is externally provided with thermally conductive fins.
4. An electrothermal tube according to claim 3, wherein the thermally conductive fins are copper sheets.
5. An electrothermal tube according to claim 3, wherein the thermally conductive fins are helical thermally conductive fins.
6. An electrothermal tube according to claim 3, wherein the heat conducting fin is provided with a heat conducting sleeve sleeved on the stainless steel sleeve, the stainless steel sleeve is provided with a threaded portion, and the threaded portion is provided with a nut abutting the heat conducting sleeve.
7. An electrothermal tube according to claim 1, wherein the stainless steel sleeve is provided with an insulating thermal head at an end thereof adjacent to the electrode.
8. The electrothermal tube of claim 7, wherein the insulative thermal head comprises a ceramic head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321576696.3U CN220173433U (en) | 2023-06-19 | 2023-06-19 | Electrothermal tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321576696.3U CN220173433U (en) | 2023-06-19 | 2023-06-19 | Electrothermal tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220173433U true CN220173433U (en) | 2023-12-12 |
Family
ID=89064498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321576696.3U Active CN220173433U (en) | 2023-06-19 | 2023-06-19 | Electrothermal tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220173433U (en) |
-
2023
- 2023-06-19 CN CN202321576696.3U patent/CN220173433U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |