CN113660741A - Carbon fiber electrical heating rod - Google Patents
Carbon fiber electrical heating rod Download PDFInfo
- Publication number
- CN113660741A CN113660741A CN202110801586.1A CN202110801586A CN113660741A CN 113660741 A CN113660741 A CN 113660741A CN 202110801586 A CN202110801586 A CN 202110801586A CN 113660741 A CN113660741 A CN 113660741A
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- end cover
- heating rod
- inner sleeve
- electric heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 70
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 70
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 238000010438 heat treatment Methods 0.000 title claims abstract description 41
- 238000005485 electric heating Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 18
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 claims description 3
- 230000008025 crystallization Effects 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 3
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 239000008030 superplasticizer Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 238000003786 synthesis reaction Methods 0.000 claims description 2
- 241001061823 Plagopterus Species 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920000592 inorganic polymer Polymers 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/04—Waterproof or air-tight seals for heaters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/145—Carbon only, e.g. carbon black, graphite
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
Landscapes
- Resistance Heating (AREA)
Abstract
The invention discloses a carbon fiber electric heating rod, which relates to the technical field of heating rods and comprises an inner sleeve, an outer sleeve, a carbon fiber heating wire, an upper end cover and a lower end cover, wherein the inner sleeve is arranged inside the outer sleeve in a penetrating manner, the carbon fiber heating wire is wound on the outer wall of the inner sleeve, two ends of the outer sleeve are respectively and fixedly connected with the inner sleeve through the upper end cover and the lower end cover, the inner sleeve, the outer sleeve, the upper end cover and the lower end cover are enclosed to form an accommodating cavity, and an insulating heat-conducting cementing material is filled in the accommodating cavity. According to the invention, the first fins spirally wound are arranged on the outer wall of the inner sleeve, the carbon fiber heating wires are wound in the spiral grooves, and the second fins spirally wound are combined with the inner wall of the inner sleeve, so that the heating efficiency in the inner sleeve is improved; meanwhile, as the accommodating cavity formed between the inner sleeve and the outer sleeve is filled with the insulating and heat-conducting gelled material, the heat conductivity is greatly improved, and the problem that the carbon fiber cable is broken due to the sharp rise of the surface temperature can be solved.
Description
Technical Field
The invention relates to the technical field of heating rods, in particular to a carbon fiber electric heating rod.
Background
The carbon fiber is inorganic polymer fiber with carbon content higher than 90%. The carbon fiber has high axial strength and modulus, no creep, good fatigue resistance, specific heat capacity and conductivity between nonmetal and metal, small thermal expansion coefficient, good corrosion resistance, low fiber density, good X-ray permeability and high thermal conversion efficiency. Therefore, the carbon fiber electric heating rod is gradually applied to various liquid heating fields with unique advantages.
The existing carbon fiber heating rod is composed of a carbon fiber cable, a supporting inner tube and an outer protective sleeve, the carbon fiber cable is wound on the inner tube and then penetrates through the protective sleeve, a gap exists between the protective sleeve and the carbon fiber cable, air in the gap hinders heat transfer, so that heat generated after carbon fiber is electrified cannot be transferred out in time, and the surface temperature of the carbon fiber cable rises sharply. The carbon fiber cable comprises a carbon fiber wire harness and a high-temperature-resistant Teflon plastic coating sleeved outside the wire harness, when the temperature rises to more than 360 ℃, the Teflon coating generates damage cracks, so that the carbon fiber is in short circuit, the temperature is further increased, ablation and fracture are realized, and the heating rod is damaged.
Therefore, how to provide an electric heating rod capable of improving heat transfer efficiency and preventing a carbon fiber cable from being broken is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a carbon fiber electric heating rod, which aims to solve one of the technical problems in the background art, so as to improve the heat transfer efficiency of the electric heating rod, protect a carbon fiber cable, and prevent the carbon fiber cable from being broken due to the rapid rise of the surface temperature.
In order to achieve the purpose, the invention adopts the following technical scheme:
a carbon fiber electrical heating rod comprising: interior sleeve pipe, outer tube, carbon fiber heater strip, upper end cover and lower end cover, interior sleeve pipe is worn to locate the inside of outer tube, the carbon fiber heater strip is around locating interior sheathed tube outer wall, the both ends of outer tube are passed through respectively upper end cover and lower end cover with interior sleeve pipe fixed connection, interior sleeve pipe, outer tube, upper end cover and lower end cover enclose the synthesis and hold the chamber, it has insulating heat conduction gelled material to hold the intracavity packing.
Furthermore, the outer wall of the inner sleeve is provided with first fins which are spirally wound, spiral grooves are formed among the first fins, and the carbon fiber heating wire is wound in the spiral grooves.
Further, the inner wall of the inner sleeve is provided with a second fin.
Further, the second fins are of spiral structures or staggered and alternated flat plate structures.
Further, the carbon fiber electric heating rod further comprises a belleville spring, and the insulating heat-conducting cementing material filled in the containing cavity is respectively abutted to the upper end cover and the lower end cover through the belleville spring.
Furthermore, both ends of the inner sleeve pipe extend out of both ends of the outer sleeve pipe, and the upper end cover and the lower end cover are hermetically clamped on the inner sleeve pipe and are fixedly connected with the outer sleeve pipe.
Further, the insulating heat-conducting cementing material comprises the following components in parts by weight: 38-65% of active magnesium oxide powder, 8-21% of magnesium sulfate powder, 0.2-3.8% of crystallization auxiliary agent, 0.1-12% of network forming agent, 0.01-3% of superplasticizer and 20.2-42.2% of water.
Further, the outer wall of the outer sleeve has a third fin.
Furthermore, the outer sleeve is provided with a through hole for penetrating the carbon fiber heating wire, and a sealing ring is arranged at the through hole.
Further, the filling length of the insulating heat-conducting cementing material in the accommodating cavity completely covers the winding length of the carbon fiber heating wire outside the inner sleeve.
According to the technical scheme, compared with the prior art, the invention discloses a carbon fiber electric heating rod, wherein the outer wall of an inner sleeve is provided with first fins which are spirally wound, carbon fiber heating wires are spirally wound in spiral grooves formed among the first fins, and second fins which are spirally wound on the inner wall of an inner sleeve are combined, so that the heating efficiency in the inner sleeve is improved; simultaneously, because the intracavity is filled to holding that forms between interior sleeve pipe and the overcoat is filled with insulating heat conduction gelled material, improves the heat conductivity by a wide margin, can solve the problem that the carbon fiber cable cracked because surface temperature sharply rises, the combination is equipped with the third fin at the sheathed tube outer wall to improve the heating efficiency of the external casing outer wall liquid of treating the heating, this carbon fiber electric heating rod can not only be followed interior sheathed tube inside heating and is treated the heating liquid, can also be followed the outer wall heating of outer sleeve and is treated the heating liquid.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of a carbon fiber electric heating rod provided by the present invention;
fig. 2 is a partially enlarged view of C in fig. 1 according to the present invention.
Wherein: 1 is an inner sleeve; 2 is an outer sleeve; 3 is a carbon fiber heating wire; 4 is an upper end cover; 5 is a lower end cover; 6 is a first fin; 7 is a spiral groove; 8 is a through hole; 9 is a sealing ring; 10 is an insulating heat-conducting cementing material; 11 is a second fin; 12 is a belleville spring; and 13 is a third fin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, an embodiment of the present invention discloses a carbon fiber electric heating rod, including: the inner sleeve 1, the outer sleeve 2, the carbon fiber heating wire 3, the upper end cover 4 and the lower end cover 5, the inner sleeve 1 is arranged inside the outer sleeve 2 in a penetrating way, the outer wall of the inner sleeve 1 is provided with first fins 6 spirally wound, spiral grooves 7 are formed among the first fins 6, the carbon fiber heating wire 3 is wound in the spiral grooves 7, the carbon fiber heating wire 3 is separated by the spiral grooves 7, the carbon fiber heating wire 3 is prevented from bursting and short-circuiting, the outer sleeve 2 is provided with through holes 8 for penetrating the carbon fiber heating wire 3, specifically, in the embodiment, the outer sleeve 2 is provided with two through holes 8, two ends of the carbon fiber heating wire 3 wound behind the inner sleeve 1 respectively extend out of the two through holes 8 and are connected with an external power supply, meanwhile, a sealing ring 9 is sleeved on the carbon fiber heating wire 3, the sealing ring 9 is connected with the through holes 8 in a sealing way, and the carbon fiber heating wire 3 inside the through holes 8 is also subjected to insulation treatment through mica sheets at a position close to the through holes 8, the two ends of the outer sleeve 2 are fixedly connected with the inner sleeve 1 through the upper end cover 4 and the lower end cover 5 respectively, the inner sleeve 1, the outer sleeve 2, the upper end cover 4 and the lower end cover 5 are enclosed to form an accommodating cavity, and the accommodating cavity is filled with an insulating heat-conducting cementing material 10, wherein the inner sleeve 1 is prepared from alumina insulating heat-conducting ceramic, and the alumina insulating heat-conducting ceramic has the advantages of good heat-conducting property, strong insulativity, firmness, durability and the like; the outer sleeve 2 is made of stainless steel, and the carbon fiber heating wire 3 has the environmental protection advantages of peculiar smell decomposition, sterilization, antibiosis and the like.
In the present embodiment, the inner tube 1 has second fins 11 on the inner wall thereof, the second fins 11 have a spiral structure or a staggered and alternating flat structure, the second fins 11 preferably have a spiral structure, and the first fins 6 and the second fins 11 preferably have a structure integrally formed with the inner tube 1.
In the above embodiment, the insulating and heat-conducting gel material 10 comprises the following components in parts by weight: 38-65% of active magnesium oxide powder, 8-21% of magnesium sulfate powder, 0.2-3.8% of crystallization auxiliary agent, 0.1-12% of network forming agent, 0.01-3% of superplasticizer and 20.2-42.2% of water.
In the above embodiment, the carbon fiber electric heating rod further includes a belleville spring 12, preferably, both ends of the inner sleeve 1 extend to the outside of both ends of the outer sleeve 2, the upper end cap 4 and the lower end cap 5 are both sealed and clamped on the inner sleeve 1 and fixedly connected with the outer sleeve 2 through bolts, the insulating heat-conducting cementing material 10 filled in the accommodating cavity is respectively abutted to the upper end cap 4 and the lower end cap 5 through the belleville spring 12, and the insulating heat-conducting cementing material 10 can be compacted through the arrangement of the belleville spring 12.
In this embodiment, the outer wall of outer tube 2 has third fin 13, and third fin 13 is helical structure or annular flat plate structure, and third fin 13 is preferably annular flat plate, and specifically, the annular flat plate is equipped with a plurality ofly, and the third fin 13 of a plurality of annular flat plate structures sets up along the axial interval of outer tube 2 to increase the heat transfer area of outer tube 2 outer wall, improve the outer heat exchange efficiency of outer tube 2.
In the above embodiment, the filling length of the insulating and heat-conducting cementing material 10 in the accommodating cavity completely covers the winding length of the carbon fiber heating wire 3 outside the inner casing 1, so that the belleville spring 12 for compacting the insulating and heat-conducting cementing material 10 is separated from the carbon fiber heating wire 3, and the short circuit phenomenon caused by the contact between the carbon fiber heating wire 3 and the belleville spring 12 after bursting is avoided.
In other embodiments, an overheat protector is arranged inside the carbon fiber electric heating rod to avoid the high temperature which causes the damage of the carbon fiber heating wire 3 and other parts.
In addition, the carbon fiber electric heating rod can be made into carbon fiber electric heating rods with different lengths, different powers and different voltages according to requirements, and can be applied to the field of various instant heating type electric heating liquids, and specific specifications are not repeated herein.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A carbon fiber electric heating rod, characterized by comprising: interior sleeve pipe, outer tube, carbon fiber heater strip, upper end cover and lower end cover, interior sleeve pipe is worn to locate the inside of outer tube, the carbon fiber heater strip is around locating interior sheathed tube outer wall, the both ends of outer tube are passed through respectively upper end cover and lower end cover with interior sleeve pipe fixed connection, interior sleeve pipe, outer tube, upper end cover and lower end cover enclose the synthesis and hold the chamber, it has insulating heat conduction gelled material to hold the intracavity packing.
2. The carbon fiber electric heating rod according to claim 1, wherein the outer wall of the inner sleeve is provided with first spirally wound fins, spiral grooves are formed among the first fins, and the carbon fiber heating wire is wound in the spiral grooves.
3. A carbon fiber electric heating rod according to claim 1 or 2, wherein the inner sleeve has second fins on an inner wall thereof.
4. A carbon fiber electric heating rod according to claim 3, wherein the second fin has a spiral structure or a staggered and alternate flat plate structure.
5. The carbon fiber electric heating rod according to claim 1, further comprising belleville springs, wherein the insulating and heat-conducting gel material filled in the accommodating cavity is respectively abutted with the upper end cover and the lower end cover through the belleville springs.
6. The carbon fiber electric heating rod according to claim 1, wherein both ends of the inner sleeve extend to the outside of both ends of the outer sleeve, and the upper end cover and the lower end cover are hermetically clamped on the inner sleeve and fixedly connected with the outer sleeve.
7. The carbon fiber electric heating rod according to claim 1, wherein the insulating heat-conducting cementing material comprises the following components in parts by weight: 38-65% of active magnesium oxide powder, 8-21% of magnesium sulfate powder, 0.2-3.8% of crystallization auxiliary agent, 0.1-12% of network forming agent, 0.01-3% of superplasticizer and 20.2-42.2% of water.
8. A carbon fiber electric heating rod as claimed in claim 1, wherein the outer wall of the outer sleeve has third fins.
9. The carbon fiber electric heating rod according to claim 1, wherein the outer sleeve has a through hole for passing the carbon fiber heating wire, and a sealing ring is disposed at the through hole.
10. The carbon fiber electric heating rod as claimed in claim 1, wherein the filling length of the insulating and heat-conducting gel material in the accommodating cavity completely covers the winding length of the carbon fiber heating wire outside the inner sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110801586.1A CN113660741A (en) | 2021-07-15 | 2021-07-15 | Carbon fiber electrical heating rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110801586.1A CN113660741A (en) | 2021-07-15 | 2021-07-15 | Carbon fiber electrical heating rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113660741A true CN113660741A (en) | 2021-11-16 |
Family
ID=78489510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110801586.1A Withdrawn CN113660741A (en) | 2021-07-15 | 2021-07-15 | Carbon fiber electrical heating rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113660741A (en) |
-
2021
- 2021-07-15 CN CN202110801586.1A patent/CN113660741A/en not_active Withdrawn
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211116 |