CN206004918U - A kind of electric heating tube with graphite as heat-conducting medium - Google Patents
A kind of electric heating tube with graphite as heat-conducting medium Download PDFInfo
- Publication number
- CN206004918U CN206004918U CN201621040740.9U CN201621040740U CN206004918U CN 206004918 U CN206004918 U CN 206004918U CN 201621040740 U CN201621040740 U CN 201621040740U CN 206004918 U CN206004918 U CN 206004918U
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- China
- Prior art keywords
- heating tube
- electric heating
- heat
- graphite
- heating wire
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Abstract
The utility model discloses a kind of electric heating tube with graphite as heat-conducting medium, described electric heating tube includes Can（2）, axially across described Can（2）Electrical heating wire（1）, and be filled in described Can（2）With described electrical heating wire（1）Between graphite powder（10）, described graphite powder（10）Particle diameter be 1 nanometer 500 microns, described electrical heating wire（1）Outer surface and described Can（2）Inner surface setting have inorganic thermal conductive material layer.This utility model adopts graphite powder as transmitting medium, improves electric conversion rate, accelerates heat conduction velocity, reduces itself thermal losses.
Description
Technical field
This utility model is related to electric heating tube technical field and in particular to a kind of electrical heating with graphite as heat-conducting medium
Pipe.
Background technology
Electric heating tube (also known as electrically heated rod) is the electric elements specially converting electrical energy into heat energy, is field of electric heating
Critical component, is widely used in household electrical appliances, automobile, weaving, food, machine-building, power plant, water boiling implement and other heating apparatuss
Etc. numerous fields needing heating.Existing electric heating tube, is with metal tube as shell, the central axial distributing auger electricity along along pipe
Heat seal spun gold (nickel chromium triangle, ferrochrome), pipe internal pore filling have good insulation heat conductivility medium oxidizing magnesia or
Particulate composition containing magnesium oxide sand, mouth of pipe two ends silica gel or ceramic seal.
Magnesium oxide sand is the very high solid of fusing point, heat conduction and non-conductive, its effect is that the heat sending heating wire conducts
To metal pipe outer wall.The existing electric heating tube generally existing power consumption using magnesium oxide sand as heat-conducting medium is high, thermal conversion efficiency
The low defect of low and heat transfer efficiency.For the traditional electric heating tube doing implant using magnesium oxide sand, such as when input power is
1500 watt-hours, heating tube wall temperature is also merely able to reach about 290 degrees Celsius.At present country and social desirability energy-saving and
Focus under the overall background of environmental conservation, the magnesium oxide sand as the heat-conducting medium of electric heating tube increasingly can not meet reality
Demand.
The Chinese patent literature of Publication No. CN103442465A discloses a kind of electric heating tube, including housing, in housing
It is provided with heater strip, heat-conducting insulation material is filled in described heater strip periphery, and wherein said heat-conducting insulation material is by magnesium oxide sand, filling
Particulate matter forms, and described filler particle is made up of silicone rubber, aluminium oxide, titanium dioxide and ceramic particle, and thermal conductivity highest can
Reach 1.98-3.1W/M DEG C.
The Chinese patent literature of Publication No. CN104344541A discloses a kind of electric heater for heating system, its
Used in electric heating tube with metal tube as shell, central axial distributing auger lectrothermal alloy wire, the space in pipe along along pipe
Middle filling magnesium oxide sand, mouth of pipe two ends silica gel or ceramic seal.The electric heating tube that this electric heater uses uses magnesium oxide sand
As heat-conducting medium.
The Chinese patent literature of Publication No. CN102740518A discloses a kind of defrosting heating tube, and body material is aluminum
Paper tinsel, is provided with heating wire, the material of heating wire is ferrochrome, in pipe internal pore padding and compacting magnesium oxide sand in body.This electricity
Heat-generating pipe equally employs magnesium oxide sand as heat-conducting medium.
There are the thermal conversion efficiency improving electric heating tube further and heat transfer efficiency in this area and reduce electrical heating further
The tight demand of pipe power consumption is so that electric heating tube has high thermal conversion efficiency and heat transfer efficiency, and can reduce further
The power consumption of electric heating tube, as heat-conduction medium, conduction of heat is slow, and itself thermal losses is big for existing electric heating tube magnesium oxide.
Utility model content
The purpose of this utility model is to provide a kind of electric heating tube with graphite as heat-conducting medium, and this utility model adopts
Graphite powder, as transmitting medium, improves electric conversion rate, accelerates heat conduction velocity, reduces itself thermal losses.
For achieving the above object, this utility model provides a kind of electric heating tube with graphite as heat-conducting medium, and described electricity adds
Heat pipe include Can, the electrical heating wire axially across described Can and be filled in described Can with described
Graphite powder between electrical heating wire, the particle diameter of described graphite powder is 1 nanometer -500 microns, the outer surface of described electrical heating wire and institute
The inner surface setting stating Can has inorganic thermal conductive material layer.
Preferably, it is also filled with metal alumina particles, described metallic aluminium between described Can and described electrical heating wire
The particle diameter of grain is 100-300 nanometer.
Preferably, described inorganic thermal conductive material layer is enamel layer.
Preferably, the outside of described Can is provided with temperature tube.
Preferably, the outside of described Can is provided with radiating fin.
Preferably, described radiating fin is helically looped around the periphery of described Can, and the distance of adjacent heat radiation wing is
8-20 millimeter.
Preferably, the outer surface of Can and described radiating fin is coated with layers of copper.
This utility model has the advantage that：
This utility model adopts graphite as heat-conducting medium, and caloric value is big, and heating is fast.
Brief description
Fig. 1 is a kind of structural representation of specific embodiment of this utility model electric heating tube.
Specific embodiment
Detailed description below is used for this utility model is described, but is not limited to scope of the present utility model.
As shown in figure 1, this utility model provides a kind of electric heating tube with graphite as heat-conducting medium, described electric heating tube bag
Include Can 2, the electrical heating wire 1 axially across described Can 2 and be filled in described Can 2 and described electricity
Graphite powder 10 between heater strip 1, the particle diameter of described graphite powder 10 is 1 nanometer -500 microns.Because graphite and aluminum are and can lead
The material of electricity, and in electrical heating wire, have electric current to pass through, electric heating tube can be made to leak electricity, therefore, in order to prevent leaking electricity, described electrical heating
Silk 1 outer surface and the inner surface of described Can 2 can be provided with inorganic thermal conductive material layer, and inorganic thermal conductive material layer is permissible
It is pottery, aluminium oxide, clay etc., in order to improve adhesive ability and the insulating properties of inorganic thermal conductive material layer, described nothing further
Machine thermal conductive material layer can be enamel layer.This utility model adopts graphite as heat-conducting medium, and caloric value is big, and heating is fast.
Because graphite at high temperature can be oxidized, generating gas, thus increasing the pressure within electric heating tube, causing quick-fried
Fried, in order to reduce explosion potential, between described Can 2 and described electrical heating wire 1, metal alumina particles can also be filled with,
The oxidability of metallic aluminium is higher than graphite, and the material aoxidizing generation is the aluminium oxide of high heat conduction ability, can not only prevent
Blast, and heat transfer efficiency can be increased, metal alumina particles can be 1 with the mass ratio of described graphite：100-10000, in order to
Increase the surface area of metal alumina particles, thus increasing the ability of adsorption of oxygen, the particle diameter of described metal alumina particles can be 100-
300 nanometers.
Measure the temperature of electric heating tube for convenience, the outside of described Can 2 can be provided with temperature tube.
Radiate for convenience, the outside of described Can 2 can be provided with radiating fin, described radiating fin spiral shell can revolve shape
Be looped around the periphery of described Can 2, the distance of adjacent heat radiation wing can be 8-20 millimeter, Can 2 and described dissipate
The outer surface of hot wing can be coated with layers of copper.
Although, above with general explanation and specific embodiment, detailed description is made to this utility model,
But on the basis of this utility model, it can be made some modifications or improvements, this is aobvious and easy to those skilled in the art
See.Therefore, these modifications or improvements on the basis of without departing from this utility model spirit, belong to this utility model
Claimed scope.
Claims (7)
1. a kind of electric heating tube with graphite as heat-conducting medium it is characterised in that described electric heating tube include Can (2),
Electrical heating wire (1) axially across described Can (2) and be filled in described Can (2) and described electrical heating wire
(1) graphite powder (10) between, the particle diameter of described graphite powder (10) is 1 nanometer -500 microns, the appearance of described electrical heating wire (1)
The inner surface setting of face and described Can (2) has inorganic thermal conductive material layer.
2. electric heating tube according to claim 1 is it is characterised in that described Can (2) and described electrical heating wire (1)
Between be also filled with metal alumina particles, the particle diameter of described metal alumina particles is 100-300 nanometer.
3. electric heating tube according to claim 1 is it is characterised in that described inorganic thermal conductive material layer is enamel layer.
4. electric heating tube according to claim 1 is it is characterised in that the outside of described Can (2) is provided with thermometric
Pipe.
5. electric heating tube according to claim 1 is it is characterised in that the outside of described Can (2) is provided with radiating
Wing.
6. electric heating tube according to claim 5 is it is characterised in that described radiating fin is helically looped around described metal
The periphery of shell (2), the distance of adjacent heat radiation wing is 8-20 millimeter.
7. electric heating tube according to claim 6 is it is characterised in that the outer surface of Can (2) and described radiating fin
It is coated with layers of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621040740.9U CN206004918U (en) | 2016-09-07 | 2016-09-07 | A kind of electric heating tube with graphite as heat-conducting medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621040740.9U CN206004918U (en) | 2016-09-07 | 2016-09-07 | A kind of electric heating tube with graphite as heat-conducting medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206004918U true CN206004918U (en) | 2017-03-08 |
Family
ID=58192988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621040740.9U Expired - Fee Related CN206004918U (en) | 2016-09-07 | 2016-09-07 | A kind of electric heating tube with graphite as heat-conducting medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206004918U (en) |
-
2016
- 2016-09-07 CN CN201621040740.9U patent/CN206004918U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 100089, No. 7, No. 1, Fengxian East Road, Haidian District, Beijing Patentee after: BEIJING GODPOWER TECHNOLOGY CO.,LTD. Address before: 100081 Beijing City, Haidian District Changchun bridge C1 Wanliu Yeland Center No. 11 block 1701 Patentee before: BEIJING GOD POWER TECHNOLOGY CO.,LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20210907 |