CN203136206U - Electric heating pipe - Google Patents
Electric heating pipe Download PDFInfo
- Publication number
- CN203136206U CN203136206U CN 201320050432 CN201320050432U CN203136206U CN 203136206 U CN203136206 U CN 203136206U CN 201320050432 CN201320050432 CN 201320050432 CN 201320050432 U CN201320050432 U CN 201320050432U CN 203136206 U CN203136206 U CN 203136206U
- Authority
- CN
- China
- Prior art keywords
- insulating layer
- electric heating
- metal sleeve
- heating
- pipe
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a resistance wire electric heating pipe apparatus, comprising a heatproof metal covering pipe. Resistance wires and racks for fixing the resistance wires are arranged in the covering pipe. The apparatus is characterized in that the inner wall of the heatproof metal covering pipe is coated with a layer of special heatproof insulating layer with thickness of 0.1-1.0 mm. The heatproof insulating layer can effectively isolate the inner wall of the metal covering pipe and air, prevent generation of oxide-film; besides, the heatproof insulating layer can play the role of insulation that no short circuit arc-starting phenomenon is generated even deformed resistance wires contact with the inner wall of the metal covering pipe, thereby substantially prolong the usage life of the whole electric heating pipe.
Description
Technical field
The utility model belongs to resistance wire electric heating heating coil device, relates in particular to the cated electric heating heating coil of a kind of its inner wall belt device.
Background technology
The electric heating heating coil generally adopts metal sleeve inside that resistance wire is set in the prior art, heats its metal sleeve by resistance wire, reaches the purpose that heat distributes from whole electric heating heating coil.And in the prior art, because its heating resisting metal internal surface of sleeve pipe is in the condition of high temperature of resistance wire heating for a long time, can cause its internal surface of sleeve pipe to have a large amount of oxide skin to come off, and resistance wire is in febrile state for a long time, is easy to produce distortion, resistance wire after the distortion might contact with the metal sleeve inwall and produce short circuit, cause the radiant tube tube wall to burn or resistance wire blows, whole electric heating heating coil is damaged, influenced its useful life greatly.
The utility model content
The metal sleeve inner wall oxide skin that exists in the above-mentioned prior art comes off and the problem of resistance wire distortion back and internal surface of sleeve pipe contact short circuit in order to solve, the utility model provides a kind of novel electric heating heating coil, it comprises outermost heating resisting metal sleeve pipe, resistance wire in the inside pipe casing setting, and the support of fixed resistance silk, it is characterized in that the even heat-resistant insulating layer that applies one deck speciality on the heating resisting metal internal surface of sleeve pipe.
Preferably, the high temperature insulation layer thickness that is coated on the metal sleeve inwall is 0.1mm-1.0mm.
Preferably, the heat-resistant insulating layer that is coated on the metal sleeve inwall is ceramic material.
Apply the ceramic heat-resistant insulating layer of one deck speciality at the metal sleeve inwall, because the coating of insulating barrier, make internal surface of sleeve pipe and air be isolated, there is not air to contact with internal surface of sleeve pipe when therefore resistance wire heats, can not further form oxide-film, effectively prevent the oxide skin obscission after metal inner surface is heated for a long time, and, because the insulation effect of insulating barrier, also can't directly contact with the metal sleeve inwall after can making the resistance wire distortion, carried out effectively completely cutting off but passed through ceramic insulating layer, can't produce short circuit, increased the useful life of equipment greatly.
According to inventor's repeatedly experiment, the thickness of insulating layer of finding to be coated on the internal surface of sleeve pipe is that insulation effect is the most outstanding with the effect that prevents the oxide skin generation between 0.1 millimeter to 1 millimeter, and its cost price that is coated with insulating layer coating is also in controlled range.
Description of drawings
The structural representation of the electric heating heating coil that Fig. 1 provides for the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described further.
See shown in Figure 1, the outermost heating resisting metal sleeve pipe of electric heating heating coil 2 inside arrange resistance wire 1, resistance wire 1 is arranged in parallel within the inside of metal sleeve 2, be not in contact with one another between two resistance wires, and resistance wire 1 is fixed by the metal sleeve 2 inner supports 3 that arrange, resistance wire 1 does not contact with metal sleeve 2 inwalls, coated ceramic heat-resistant insulating layer 4 on metal sleeve 2 inwalls.Through inventor's test of many times, it is more thick that ceramic insulating layer 4 applies, its effect and insulation effect that prevents that oxide-film from generating is just more good, but when the thickness of the ceramic insulating layer 4 that applies during greater than 1 millimeter, increase its coating thickness again, its insulation effect and prevent that oxide-film from generating effect and not had tangible lifting, therefore, in order to reduce production cost, and guarantee the insulation effect of its ceramic insulating layer 4 and prevent that oxide-film from generating effect, determine the coating thickness of ceramic insulating layer 4 between 0.1mm-1mm, to suit according to the actual heating-up temperature of its whole electric heating heating coil.
When the electric heating heating coil is worked, its inner resistance wire 1 energising back continues heat release, its heat comes out by 2 radiation of heating resisting metal sleeve pipe, after resistance wire 1 continues energising heating a period of time, metal sleeve 2 inside reach uniform temperature, the inwall of its metal sleeve 2 is easy to react with airborne oxygen, inwall at metal sleeve 2 forms one deck oxide film, and this oxide film can come off very soon, have a strong impact on the useful life of metal sleeve 2, but because after ceramic insulating layer 4 is coated on the inwall of metal sleeve 2 uniformly, it has effectively completely cut off contacting of air and metal sleeve 2, metal sleeve 2 inwalls are under the very high temperature also can generate oxide film, and because the insulation effect of ceramic insulating layer 4, make resistance wire 1 be in condition of high temperature distortion for a long time, with the phenomenon that also can not produce the short circuit starting the arc after metal sleeve 2 inwalls contact, effectively prevent the phenomenon that resistance wire 1 blows or metal sleeve 2 burns, increased the useful life of whole electric heating heating coil greatly.
Claims (3)
1. electric heating heating coil, it comprises the heating resisting metal sleeve pipe, the resistance wire that arranges at inside pipe casing, and the support of fixed resistance silk is characterized in that evenly applying the heat-resistant insulating layer of one deck speciality on the heating resisting metal internal surface of sleeve pipe.
2. electric heating heating coil according to claim 1, the high temperature insulation layer thickness that it is characterized in that being coated on the metal sleeve inwall is 0.1mm-1.0mm.
3. electric heating heating coil according to claim 1 is characterized in that described heat-resistant insulating layer is ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320050432 CN203136206U (en) | 2013-01-30 | 2013-01-30 | Electric heating pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320050432 CN203136206U (en) | 2013-01-30 | 2013-01-30 | Electric heating pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203136206U true CN203136206U (en) | 2013-08-14 |
Family
ID=48944136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320050432 Expired - Fee Related CN203136206U (en) | 2013-01-30 | 2013-01-30 | Electric heating pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203136206U (en) |
-
2013
- 2013-01-30 CN CN 201320050432 patent/CN203136206U/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 | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 101111, Beijing economic and Technological Development Zone, No. three, No. 109, Hai Lu, building 20 Patentee after: Beijing Jingjie Ruisi Technology Development Co, Ltd. Patentee after: Beijing Haitai Ruisen Environment Energy Technology Development Co., Ltd. Patentee after: Beijing Jiecheng Xinrui Science & Technology Co., Ltd. Address before: 100176, Beijing economic and Technological Development Zone, Garden North Street, No. 57, building 15, 2 floor Patentee before: Beijing Jingjie Ruisi Technology Development Co, Ltd. Patentee before: Beijing Haitai Ruisen Environment Energy Technology Development Co., Ltd. Patentee before: Beijing Jiecheng Xinrui Science & Technology Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Li Shaochen Document name: Notification of Passing Examination on Formalities |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20160130 |
|
| EXPY | Termination of patent right or utility model |