CN201119021Y - An electric heating pipe - Google Patents
An electric heating pipe Download PDFInfo
- Publication number
- CN201119021Y CN201119021Y CNU2007200604717U CN200720060471U CN201119021Y CN 201119021 Y CN201119021 Y CN 201119021Y CN U2007200604717 U CNU2007200604717 U CN U2007200604717U CN 200720060471 U CN200720060471 U CN 200720060471U CN 201119021 Y CN201119021 Y CN 201119021Y
- Authority
- CN
- China
- Prior art keywords
- heating wire
- insulating barrier
- electrothermal tube
- electric heating
- wrapped
- 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
Links
Images
Landscapes
- Resistance Heating (AREA)
Abstract
The utility model relates to an electric heating tube, which comprises a metal casing body and heating wires arranged in the metal casing body, wherein, an insulation layer is arranged between the heating wires and the inner wall of the metal casing body, electrode starting rods are connected at the both ends of the heating wires, the heating wires are winded on a heat resistance fiber core, and the insulation layer can adopt an insulation fiber braided tape, a mica paper tape, a piece of glass cloth or a heat resisting insulation fiber sleeve. The electric heating tube has small tube diameter, is convenient for manufacturing the electric heating tube with high voltage and low power, simultaneously, the heat energy utilization rate of the electric heating tube is greatly enhanced, the generation of dust can be greatly reduced or avoided during the manufacturing and preparing processes of products, therefore, the manufacture is more environment protective.
Description
Technical field
The utility model relates to a kind of electrothermal tube.
Background technology
At present, common electrothermal tube on the market, its basic structure generally comprises metal shell and is located at heating wire in the metal shell, and the two ends of heating wire are connected with electrode and draw rod, and electrode draws rod in order to connect extraneous power supply.Be filled with insulating barrier between heating wire and the metal shell inwall, insulating barrier all be mostly body of powder or by the body of powder pre-molding be the insulation body, common body of powder is magnesium oxide (MgO) powder.Yet, electrothermal tube by this structure, because heating wire is built in the powder insulating barrier and heating wire does not have axially mounting, so insulating barrier must be thicker, cause whole caliber bigger, the tubule footpath electrothermal tube of producing this structure is very difficult, and the whole caliber of electrothermal tube can not be too little, makes that the lower powered electrothermal tube of production high voltage is very difficult.And, the powder insulation that insulating barrier adopts, and draw with filling forms and to be put in the metal tube, thickness of insulating layer is big, and the heat efficiency is lower, and simultaneously, heating wire is easy to generate local the reunion in insulating barrier, also influence the heat efficiency of electrothermal tube to a certain extent.In addition, because the insulating barrier of above-mentioned electrothermal tube adopts body of powder, dust is bigger during production, and environment-friendly quality is poor.
Occur some in the improvement technology and replaced electrothermal tube or its similar products of insulating barrier with fiber material, a kind of high-resistance current-limiting type armouring heating cable is disclosed as Chinese patent application 03117509.0, this technical scheme is on the basis of the chemical analysis that improves heating wire, also adopt the high-temperature insulation fiber to do the insulation supporting material, it is outer as insulating barrier that this insulation supporter material is located at heating wire.But the described heating cable of this technical scheme, heating wire are still independently to be located in the non-conductive fibre, does not have fixing axially mounting, and its insulating material can not be done too thinly, and there is certain difficulty in the tubule footpath product that causes producing this class formation.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides that a kind of caliber is little, the electrothermal tube of heat energy utilization rate height, production process environmental protection.
Goal of the invention of the present utility model is achieved in that a kind of electrothermal tube, comprise metal shell and be located at the interior heating wire of metal shell, be provided with insulating barrier between heating wire and the metal shell inwall, the two ends of heating wire are connected with electrode and draw rod, it is characterized in that: described heating wire is wrapped on the heat resistance fiber core.
Described insulating barrier is to be wrapped in the outer non-conductive fibre braid over braid of heating wire.
Described insulating barrier is to be wrapped in the outer mica paper tape of heating wire.
Described insulating barrier is to be wrapped in the outer glass cloth of heating wire.
Described insulating barrier is to be enclosed within the outer high temperature insulation fiber sleeve of heating wire.
The utility model is compared with the electrothermal tube and the manufacture method thereof of prior art, has the following advantages:
(1) heating wire described in the utility model directly is wrapped on the heat resistance fiber core, make heating wire can obtain axially mounting, insulating barrier adopts various fiber woven belts, the purple band of mica, glass cloth or fiber sleeve, its thickness is thinner relatively, its heating wire also can be tending towards miniaturization, and with the electrothermal tube that the method makes, caliber is very tiny, suitable tubule directly heats occasion to be used, and also is convenient to produce high voltage, lower powered electrothermal tube.
(2) electrothermal tube of employing structure described in the utility model, because of its insulating barrier thinner, caliber is tiny, make the surface to volume ratio value of electrothermal tube bigger, improved the heat energy utilization rate of electrothermal tube greatly, be beneficial to heat by transmitting outside interior, reduce the temperature difference between heating wire and the metal shell, prolong the life-span of electrothermal tube, simultaneously, also be beneficial to and produce the lower powered electrothermal tube of high voltage.
(3) electrothermal tube described in the utility model, because insulating barrier does not adopt powder insulation, product can significantly reduce or avoids producing dust in the production preparation process, produces more environmental protection.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment 1.
Accompanying drawing 2 is the structural representation of the utility model embodiment 2.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
According to shown in Figure 1, electrothermal tube of the present utility model comprises metal shell 1 and heating wire 2, and heating wire 2 is packaged in the metal shell 1, and the material of heating wire 2 can be various somes exothermic materials.Be provided with insulating barrier 3 between heating wire 2 and metal shell 1 inwall, insulating barrier 3 is a flexible material and can be in order to isolating heating wire 2 and metal shell 1, yet insulating barrier 3 plays the effect of heat-conduction medium again.The two ends of heating wire 2 are connected with electrode and draw rod 4, electrode draws rod 4 and can draw respectively from the two ends of metal shell 1, become the double end form, as shown in Figure 1, also can draw jointly, make electrothermal tube form the single head structure, as shown in Figure 2 by an end of metal shell 1, at this moment, metal shell 1 is an end hermetically-sealed construction.Motor draws rod, and usually and heating wire 2 welds fixedly connected and it is connected with extraneous power supply.The described heating wire 2 of electrothermal tube of the present utility model is wrapped on the heat resistance fiber core 5, and its canoe is generally spiral form, 2 axially mounting positioning actions of 5 pairs of heating wires of heat resistance fiber core, as shown in Figure 1.In the manufacture process of reality, heating wire 2 also can many settings in metal shell 1, and every heating wire 2 can be by heat resistance fiber core 5 supportings separately, by insulating barrier 3 parcels separately.During this time, insulating barrier 3 of the present utility model is following several versions: (1) insulating barrier 3 is for being wrapped in the non-conductive fibre braid over braid outside the heating wire 2, as glass fibre, quartz fibre, high silica fiber, ceramic fibre, silicate fiber, chromate fiber or the like; (2) insulating barrier 3 is for being wrapped in the mica paper tape outside the heating wire 2; (3) insulating barrier 3 is for being wrapped in the glass cloth outside the heating wire 2; (4) insulating barrier 3 is for being enclosed within the high temperature insulation fiber sleeve outside the heating wire 2, and fiber sleeve can be by above-mentioned glass fibre, quartz fibre, high silica fiber, ceramic fibre, silicate fiber, chromate fiber or the like knitting forming.Simultaneously, insulating barrier 3 also can be made requirement according to reality, also can be mixed and made into by above-mentioned fiber woven belt, the mica scraps of paper or glass cloth and certain insulation powder body material (as magnesium oxide).
Electrothermal tube described in the utility model, it can make by following manufacture method:
(a) heating wire 2 is wrapped on the heat resistance fiber core 5;
(b) outside heating wire 2, twine or put insulating barrier 3;
(c) outside insulating barrier 3, put metal shell 1, form semi-finished product;
(d) by flattening or draw technology, above-mentioned semi-finished product are made the finished product of various calibers.
In arbitrary operation in operation (a)～(c), connect electrode at the two ends of heating wire 2 and draw rod 4.
Electrothermal tube described in the utility model, caliber is tiny, and suitable tubule directly heats occasion to be used, also be convenient to produce high voltage, lower powered electrothermal tube, also improved simultaneously the heat energy utilization rate of electrothermal tube greatly, the heat transfer efficiency height is beneficial to and produces the lower powered electrothermal tube of high voltage.In addition, the utility model can significantly reduce or avoids producing dust in the production preparation process, produces more environmental protection.
Claims (5)
1. electrothermal tube, comprise metal shell (1) and be located at the interior heating wire (2) of metal shell (1), be provided with insulating barrier (3) between heating wire (2) and metal shell (1) inwall, the two ends of heating wire (2) are connected with electrode and draw rod (4), it is characterized in that: described heating wire (2) is wrapped on the heat resistance fiber core (5).
2. electrothermal tube according to claim 1 is characterized in that: described insulating barrier (3) is for being wrapped in the non-conductive fibre braid over braid outside the heating wire (2).
3. electrothermal tube according to claim 1 is characterized in that: described insulating barrier (3) is for being wrapped in the mica paper tape outside the heating wire (2).
4. electrothermal tube according to claim 1 is characterized in that: described insulating barrier (3) is for being wrapped in the glass cloth outside the heating wire (2).
5. electrothermal tube according to claim 1 is characterized in that: described insulating barrier (3) is for being enclosed within the high temperature insulation fiber sleeve outside the heating wire (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200604717U CN201119021Y (en) | 2007-11-27 | 2007-11-27 | An electric heating pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200604717U CN201119021Y (en) | 2007-11-27 | 2007-11-27 | An electric heating pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201119021Y true CN201119021Y (en) | 2008-09-17 |
Family
ID=39993624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200604717U Expired - Fee Related CN201119021Y (en) | 2007-11-27 | 2007-11-27 | An electric heating pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201119021Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109661052A (en) * | 2018-12-06 | 2019-04-19 | 绍兴市上虞神舟仪表有限公司 | A kind of high stability armored heating cable |
-
2007
- 2007-11-27 CN CNU2007200604717U patent/CN201119021Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109661052A (en) * | 2018-12-06 | 2019-04-19 | 绍兴市上虞神舟仪表有限公司 | A kind of high stability armored heating cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101207946A (en) | Electric heating pipe and manufacturing method thereof | |
| CN201119021Y (en) | An electric heating pipe | |
| CN202116614U (en) | High-temperature hydrogen burning and sizing furnace | |
| CN101102625B (en) | Production method of carbon fiber heating body for infrared heating tube | |
| CN105939547A (en) | Carbon fiber heating cable for oil production | |
| CN201766729U (en) | Novel carbon fiber quartz electric heating pipe | |
| CN101659553A (en) | Preparation method of spiral carbon fiber heating body | |
| CN201766730U (en) | Single-end outgoing-line carbon fiber electro-thermal tube | |
| CN208643749U (en) | A kind of electrothermal tube molding equipment | |
| CN209343815U (en) | A kind of flexibility resist bending cable | |
| CN201315675Y (en) | Armored heating cable | |
| CN201230382Y (en) | Armored thermal resistor heater | |
| CN203423809U (en) | Lead-out rod of heating tube | |
| CN201528441U (en) | Electric heating tube | |
| CN203049095U (en) | Bottom heater structure of large size sapphire furnace | |
| CN208353639U (en) | A kind of high-performance heating tube element | |
| CN206042407U (en) | Double -deck insulation system's single -ended electric heating element | |
| CN201442999U (en) | Heating device used for seal furnace mouth | |
| CN205561280U (en) | Brand -new energy -saving electric heating pipe | |
| CN111410845A (en) | Silica gel line | |
| CN101207947A (en) | High temperature mineral insulation heating cable | |
| CN204858892U (en) | High pressure three -phase wire winding type three -phase asynchronous motor collecting ring structure | |
| CN202310145U (en) | Multi-power electric heating tube | |
| CN206879117U (en) | Magnesium oxide insulated heater | |
| CN203399314U (en) | Straight-tube type instant heating tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20131127 |