CN202907237U - Three-phase constant-power electric heating tape - Google Patents
Three-phase constant-power electric heating tape Download PDFInfo
- Publication number
- CN202907237U CN202907237U CN 201220550005 CN201220550005U CN202907237U CN 202907237 U CN202907237 U CN 202907237U CN 201220550005 CN201220550005 CN 201220550005 CN 201220550005 U CN201220550005 U CN 201220550005U CN 202907237 U CN202907237 U CN 202907237U
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- electric heating
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- phase constant
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Abstract
The utility model discloses a three-phase constant-power electric heating tape, which is based on the improvement of the structure and material of the prior three-phase constant-power electric heating tape. Compared with the prior art, the three-phase constant power electric heating tape is higher in mechanical strength and high temperature resistance, longer in service life and better in heat conductivity. Simultaneously, the utility model also discloses a further improvement scheme, which can increase the heat transmission efficiency and improve the highest temperature resistance, of the electric heating tape.
Description
Technical field
The utility model relates to the electric wire field, relates in particular to a kind of three-phase constant-power electric heating belt.
Background technology
Patent documentation CN87207226U discloses a kind of three-phase constant-power electric heating belt, present ripe and common three-phase constant-power electric heating belt basic structure, compare with the single-phase electricity torrid zone, heating power has been improved in the three-phase electricity torrid zone, possess the advantage that to grow distance heating, companion's heat and insulation, and go for large diameter pipeline.
Development along with technical merit, the new problem of producing, running in the life and new complex environment have proposed more highland requirement for the performance of three-phase constant-power electric heating belt, and existing conventional three-phase constant-power electric heating belt remains further to be improved in the performance of the aspects such as mechanical strength, high temperature resistant, useful life, thermal conductivity.
Summary of the invention
The purpose of this utility model provides a kind of three-phase constant-power electric heating belt, with respect to prior art, has more highland mechanical strength and resistance to elevated temperatures, longer service life, and thermal conductivity is better.
Technical solution of the present utility model is:
A kind of three-phase constant-power electric heating belt comprises the bus, inner insulating layer, heating wire, external insulation layer, sheath, screen, the reinforced sheath that set gradually from inside to outside; Described bus is three groups of parallel wires, through three groups of bus mutually insulateds of parcel of three groups of inner insulating layers; Described heating wire winding is outside three groups of inner insulating layers, and heating wire circulates successively at a certain distance and is connected with three groups of buses.The three-phase constant-power electric heating belt of said structure has more highland mechanical strength and resistance to elevated temperatures; can effectively protect heating wire by between heating wire and sheath, setting up external insulation layer; and improve the useful life of sheath, help simultaneously to improve the thermal conductivity of ribbon heater.
As the further improved three-phase constant-power electric heating belt of the utility model, it is characterized in that described inner insulating layer is high temperature composite insulating material perfluoroethylene-propylene, described external insulation layer is the fire resistant glass fibre, described screen is the copper braid, described sheath and reinforced sheath are perfluoroalkoxy resin, and described bus is stranded zinc-plated or silver-coated copper wire.The dielectric coefficient of perfluoroethylene-propylene is low, and the impact that not changed by working temperature and power frequency; And the specific insulation of perfluoroethylene-propylene is high, and is not subjected to the impact of water and moisture and variations in temperature; When perfluoroethylene-propylene thickness during greater than 1 millimeter, disruptive field intensity is at 30 kilovolts more than every millimeter, and variation with temperature and changing not.The fire resistant glass fibre has good insulating, thermal endurance is strong, corrosion resistance good, mechanical strength is high excellent specific property.The advantage of perfluoroalkoxy resin is the continuous serviceability temperature that has up to 260 ℃, and strong and unyielding degree is strong, and is antiseized good with chemical resistance under the hot conditions.
As the further improved three-phase constant-power electric heating belt of the utility model, it is characterized in that three groups of buses are side by side flat setting.Flat structure can reduce the heating load on surface, ribbon heater, increases the heat transfer area to pipeline, has improved efficiency of thermal transfer and the high maintenance temperature of ribbon heater.
Three-phase constant-power electric heating belt provided by the utility model with respect to prior art, has more highland mechanical strength and resistance to elevated temperatures, longer service life, and thermal conductivity is better, and flat structure can improve efficiency of thermal transfer and the high maintenance temperature of ribbon heater.
Description of drawings
Fig. 1, the structural representation of three-phase constant-power electric heating belt provided by the utility model.
1 is bus, and 2 is inner insulating layer, and 3 is heating wire, and 4 is external insulation layer, and 5 is sheath, and 6 is screen, and 7 is reinforced sheath.
Embodiment
In order to deepen understanding of the present utility model, the utility model is done describing in further detail below in conjunction with drawings and Examples, this embodiment only is used for explaining the utility model, does not consist of the restriction to the utility model protection range.
A kind of three-phase constant-power electric heating belt as shown in Figure 1 comprises the bus 1, inner insulating layer 2, heating wire 3, external insulation layer 4, sheath 5, screen 6, the reinforced sheath 7 that set gradually from inside to outside; Described bus 1 is three groups of parallel wires, through three groups of bus 1 mutually insulateds of parcel of three groups of inner insulating layers 2; Described heating wire 3 is wrapped in outside three groups of inner insulating layers 2, and heating wire 3 circulates successively at a certain distance and is connected with three groups of buses 1.
Further improve as the utility model, described inner insulating layer 2 is high temperature composite insulating material perfluoroethylene-propylene, described external insulation layer 4 is the fire resistant glass fibre, described screen 6 is the copper braid, described sheath 5 and reinforced sheath 7 are perfluoroalkoxy resin, and described bus 1 is stranded zinc-plated or silver-coated copper wire.Described three groups of buses 1 are side by side flat setting.
Above-mentioned three-phase constant-power electric heating belt with respect to prior art, has more highland mechanical strength and resistance to elevated temperatures, longer service life, and thermal conductivity is better, and flat structure can improve efficiency of thermal transfer and the high maintenance temperature of ribbon heater.
Claims (3)
1. a three-phase constant-power electric heating belt comprises the bus (1), inner insulating layer (2), heating wire (3), external insulation layer (4), sheath (5), screen (6), the reinforced sheath (7) that set gradually from inside to outside; Described bus (1) is three groups of parallel wires, through three groups of buses of parcel (1) mutually insulated of three groups of inner insulating layers (2); Described heating wire (3) is wrapped in outside three groups of inner insulating layers (2), and heating wire (3) circulates successively at a certain distance and is connected with three groups of buses (1).
2. three-phase constant-power electric heating belt according to claim 1, it is characterized in that described inner insulating layer (2) is high temperature composite insulating material perfluoroethylene-propylene, described external insulation layer (4) is the fire resistant glass fibre, described screen (6) is the copper braid, described sheath (5) and reinforced sheath (7) are perfluoroalkoxy resin, and described bus (1) is stranded zinc-plated or silver-coated copper wire.
3. three-phase constant-power electric heating belt according to claim 1 is characterized in that three groups of buses (1) are side by side flat setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220550005 CN202907237U (en) | 2012-10-25 | 2012-10-25 | Three-phase constant-power electric heating tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220550005 CN202907237U (en) | 2012-10-25 | 2012-10-25 | Three-phase constant-power electric heating tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202907237U true CN202907237U (en) | 2013-04-24 |
Family
ID=48127850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220550005 Expired - Fee Related CN202907237U (en) | 2012-10-25 | 2012-10-25 | Three-phase constant-power electric heating tape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202907237U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104768248A (en) * | 2015-03-28 | 2015-07-08 | 安徽华瑞电气有限公司 | Heating tracing insulated anti-corrosion heating tape |
| CN106413158A (en) * | 2016-09-12 | 2017-02-15 | 芜湖市旭辉电工新材料有限责任公司 | Parallel constant-power electric tracing band with high heat conduction efficiency |
| CN107632642A (en) * | 2017-11-03 | 2018-01-26 | 上海正帆科技股份有限公司 | Exhaust pipe heating system |
| CN109496000A (en) * | 2018-11-16 | 2019-03-19 | 安邦电气股份有限公司 | A kind of environment-friendly type parallel three phase invariable power electric-heating belt |
-
2012
- 2012-10-25 CN CN 201220550005 patent/CN202907237U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104768248A (en) * | 2015-03-28 | 2015-07-08 | 安徽华瑞电气有限公司 | Heating tracing insulated anti-corrosion heating tape |
| CN106413158A (en) * | 2016-09-12 | 2017-02-15 | 芜湖市旭辉电工新材料有限责任公司 | Parallel constant-power electric tracing band with high heat conduction efficiency |
| CN107632642A (en) * | 2017-11-03 | 2018-01-26 | 上海正帆科技股份有限公司 | Exhaust pipe heating system |
| CN109496000A (en) * | 2018-11-16 | 2019-03-19 | 安邦电气股份有限公司 | A kind of environment-friendly type parallel three phase invariable power electric-heating belt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20181025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |