CN106455168A - Tandem type constant power ribbon heater processing technology - Google Patents

Tandem type constant power ribbon heater processing technology Download PDF

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Publication number
CN106455168A
CN106455168A CN201610824478.5A CN201610824478A CN106455168A CN 106455168 A CN106455168 A CN 106455168A CN 201610824478 A CN201610824478 A CN 201610824478A CN 106455168 A CN106455168 A CN 106455168A
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CN
China
Prior art keywords
layer
bus
heating
silica gel
invariable power
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Pending
Application number
CN201610824478.5A
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Chinese (zh)
Inventor
鲁旭波
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WUHU XUHUI ELECTRIC NEW MATERIAL CO Ltd
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WUHU XUHUI ELECTRIC NEW MATERIAL CO Ltd
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Priority to CN201610824478.5A priority Critical patent/CN106455168A/en
Publication of CN106455168A publication Critical patent/CN106455168A/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/40Heating elements having the shape of rods or tubes
    • H05B3/54Heating elements having the shape of rods or tubes flexible
    • H05B3/56Heating cables
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/10Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/10Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12Heating 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
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/10Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/18Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor the conductor being embedded in an insulating material
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017Manufacturing methods or apparatus for heaters

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  • Resistance Heating (AREA)

Abstract

The invention discloses a tandem type constant power ribbon heater processing technology. The technology includes the following steps: 1. wrapping a glass fiber braid ply on the outside of an alloy heating core, arranging one layer of inorganic lubrication powder, extruding one layer of busbar insulating layer, coating a silicone oil, cooling the alloy heating core in the air and immersing the alloy heating core in water for performing cooling, scraping the silicone oil on the surface of the busbar insulating layer and recycling the silicone oil, and obtaining the constant power heating busbar; 2. coating one layer of heat conductive silica gel on the surface of the constant power heating busbar, such that the silica gel fills the gaps between each constant power heating busbar in a heating busbar group, curing the heat conductive silica gel which is filled in the heating busbar group; 3. adopting an extruding pipe extrusion die to extrude one layer of total insulating layer on the outside of the heating busbar which is processed by the step 2, then coating one layer silica oil on the outside of the total insulating layer, cooling the total insulating layer in the air and immersing the total insulating layer in water for performing cooling, taking the total insulating layer from a cooling water tank, scraping the silica oil on the surface of the total insulating layer and recycling the silica oil.

Description

A kind of tandem type invariable power ribbon heater processing technology
Technical field
The present invention relates to a kind of invariable power ribbon heater processing technique field, particularly a kind of tandem type invariable power ribbon heater adds Work technique.
Background technology
Electric-heating belt is a kind of new high-tech product, and since its last century 70 enters application, they can Be widely used in liquid object convey in the duct with the anti-freezing and heat-insulating of tank body, maintain technological temperature, heating highway, slope Road, crossing, eaves and floor etc..When electric-heating belt works, a certain system of heat tracing, if in the unit interval electric-heating belt to The heat that the heat of system transmission transmits to external environment equal to system, then the temperature holding of system is constant.System can be made to reach Maximum temperature, referred to as highest maintain temperature.
Power output is constant always to invariable power electric-heating belt after powered up, will not be with external environment, insulation material, companion The material of heat changes and changes, and the output of its power or stopping generally being controlled by temperature sensor.Tandem invariable power electricity companion The torrid zone is as calandria by metal alloy wires core, and the metal alloy wires core with certain resistance can produce heat by electric current Amount, the time that its size is passed through to current squaring, the resistance of metal alloy wires core and electric current is directly proportional;Therefore, tandem Electric-heating belt, with the continuity of conduction time, continuously gives off heat, and forms a continuous, electric tracing for consistent heat generation Band.Serial electric heating tape metal alloy wires core resistance is identical, size of current that is passing through is identical, so whole electric-heating belt Head and the tail generate heat uniformly, and its power output is constant not to be affected by environment temperature and pipe temperature, is therefore applied to relatively long distance pipeline Tracing thermal-insulating, powered with a power supply point, the longest up to 3000 meters;But tandem type ribbon heater is according to length of pipeline direct system Making it is not possible to any montage.
Content of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of tandem type invariable power ribbon heater processing technology, energy Enough meet actual operation requirements.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of tandem type invariable power ribbon heater processing technology, comprises the following steps:
Step one, alloy heat generating core outer layer uniform weave wrap up layer of glass braiding layer, fiberglass braided Layer surface is evenly arranged one layer of inorganic lubricant powder, then extrudes one using crowded tubular type extrusion die outside fiberglass braided layer Layer bus insulation layer, uniformly brushes one layer of silicone oil in the outside of bus insulation layer, again by bus insulation layer after cooling down in atmosphere Put into be immersed in the water in bosh and cooled down, after taking out from bosh, the silicone oil of bus insulation layer surface is scraped simultaneously Reclaim, prepared invariable power heating bus;
Step 2, the invariable power heating bus surface being obtained in step one coat one layer of heat conductive silica gel, then by one or more It is coated with the invariable power heating bus of heat conductive silica gel and is a branch of bus group of generating heat, and so that heating bus group is reclaimed by silica gel Pipe, the arrival end of silica gel recovery tube, with diameter greater than port of export diameter, makes heat conductive silica gel be full of heating bus by silica gel recovery tube In group, the gap between each invariable power heating bus, then makes the heat conductive silica gel solidification being filled in heating bus group;
Step 3, using crowded tubular type extrusion die step 2 process after heating bus group outside extrude one layer of total insulating barrier, so Uniformly brush one layer of silicone oil in the outside of total insulating barrier afterwards, after cooling down in atmosphere, more total insulating barrier is put into leaching in bosh Enter in water and cooled down, after taking out from bosh, the silicone oil of total surface of insulating layer is scraped and reclaim.
As the improvement further of technique scheme, in step one, alloy heat generating core is corronil material system Become, inorganic lubricant powder is talcum powder, bus insulation layer is made up of fluorinated ethylene propylene copolymer material.
As the improvement further of technique scheme, in step 3, total insulating barrier is low-smoke halogen-free flame-retardant thermoplastic Polyolefine material is made, and low-smoke halogen-free flame-retardant thermoplastic polyolefin is mixed according to 37 mass ratio by the first component and the second component Close extrusion to form, wherein first group is divided into the ethene of metallocene catalyst and octene to realize the thermoplastic elastomer (TPE) of in-situ polymerization, Second group is divided into ethylene-vinyl acetate copolymer.
As the improvement further of technique scheme, also include step 4, outside total insulating barrier that step 3 is obtained all Even braiding parcel one metal wire layer braiding layer, is evenly arranged one layer of inorganic lubricant powder in metal wire knitted layer surface, then adopts Extrude one layer of external sheath layer with squeezing tubular type extrusion die outside wire braid;External sheath layer is fluorinated ethylene propylene copolymer Material is made.
A kind of tandem type invariable power ribbon heater provided by the present invention processing technology compared with prior art, the present invention's Beneficial effect is:
First, the structural strength of invariable power heating bus, the opposing party can be strengthened by arranging fiberglass braided layer one side Face can avoid bus insulation layer directly contact alloy heat generating core, thus reducing due to the heating of bus insulation layer directly contact Alloy heat generating core under state and the rate of ageing that causes.
Secondly, on the one hand pass through to extrude one layer of bus insulation outside fiberglass braided layer using crowded tubular type extrusion die Layer, destroys such that it is able to reduce extrusion friction when bus insulation layer extrudes, fiberglass braided layer being caused, on the other hand logical Cross and be evenly arranged one layer of inorganic lubricant powder in fiberglass braided layer surface, fiberglass braided layer can be reduced exhausted with bus Frictional force between edge layer, such that it is able to reduce extruding when bus insulation layer extrudes, fiberglass braided layer being caused further Friction destruction.
Again, uniformly brush one layer of silicone oil in the outside of bus insulation layer:First silicone oil thermal conductivity is good, and bus can be made exhausted The aerial cooling of edge layer is more uniformly distributed;Second silicone oil good in oxidation resistance, can protect the higher bus of freshly extruded temperature exhausted Edge layer is not oxidized in atmosphere;3rd silicone oil lubricity is good, and freshly extruded not completely crued bus insulation layer can be made to reduce With the friction of contact, thus be conducive to improve bus insulation layer surface smoothness;4th silicone oil has hydrophobicity feature, makes Can be quick by way of the silicone oil of bus insulation layer surface is scraped after bus insulation layer water-cooled in putting into bosh Ground eliminating water, thus the technique such as need not dry, drying can accelerate the aging of bus insulation layer and high energy consumption, efficiency are low.
Finally, heat conductive silica gel is made to be full of the gap that in heating bus group, each invariable power generates heat between bus, such that it is able to carry High-heat conductive efficency, such that it is able to make heat be dispersed into more quickly in the surrounding air needing heating, improves tandem type perseverance work( The efficiency of heating surface of rate ribbon heater;And so that heat is more uniformly spread, it is to avoid the excessive material aging causing of local pyrexia amount is even Cause the accidents such as short circuit and fire hazard.
Specific embodiment
To further describe the technology contents of the present invention below in conjunction with specific embodiments.
A kind of tandem type invariable power ribbon heater processing technology that the present embodiment is provided, comprises the following steps:
Step one, alloy heat generating core outer layer uniform weave wrap up layer of glass braiding layer, fiberglass braided Layer surface is evenly arranged one layer of inorganic lubricant powder, then extrudes one using crowded tubular type extrusion die outside fiberglass braided layer Layer bus insulation layer, uniformly brushes one layer of silicone oil in the outside of bus insulation layer, again by bus insulation layer after cooling down in atmosphere Put into be immersed in the water in bosh and cooled down, after taking out from bosh, the silicone oil of bus insulation layer surface is scraped simultaneously Reclaim, prepared invariable power heating bus;Alloy heat generating core is made up of corronil material, and inorganic lubricant powder is talcum powder, Bus insulation layer is made up of fluorinated ethylene propylene copolymer material.
Step 2, the invariable power heating bus surface being obtained in step one coat one layer of heat conductive silica gel, then by one or Invariable power heating bus that many are coated with heat conductive silica gel be a branch of bus group of generating heat, and so that heating bus group is returned by silica gel Closed tube, the arrival end of silica gel recovery tube, with diameter greater than port of export diameter, makes heat conductive silica gel be full of heating by silica gel recovery tube female In line group, the gap between each invariable power heating bus, then makes the heat conductive silica gel solidification being filled in heating bus group.
Step 3, extrude one layer using crowded tubular type extrusion die outside the heating bus group after step 2 process and total insulate Layer, then uniformly brushes one layer of silicone oil in the outside of total insulating barrier, more total insulating barrier is put into cooling water after cooling down in atmosphere It is immersed in the water in groove and is cooled down, after taking out from bosh, the silicone oil of total surface of insulating layer is scraped and reclaim;Total insulation Layer is made up of low-smoke halogen-free flame-retardant thermoplastic polyolefine material, and low-smoke halogen-free flame-retardant thermoplastic polyolefin is by the first component and second Component forms according to 37 mass ratio mixing extrusion, wherein first group be divided into the ethene of metallocene catalyst and octene realize former The thermoplastic elastomer (TPE) of position polymerization, second group is divided into ethylene-vinyl acetate copolymer.
Step 4, the total insulating barrier outer uniform weave parcel one metal wire layer braiding layer being obtained in step 3, in wire Braiding layer surface is evenly arranged one layer of inorganic lubricant powder, is then extruded outside wire braid using crowded tubular type extrusion die One layer of external sheath layer;External sheath layer is made up of fluorinated ethylene propylene copolymer material.
A kind of tandem type invariable power ribbon heater the performance test results obtained by the present embodiment are as follows:
Survey the low-temperature bending performance of total insulating barrier:According to GB/T2951.14-2008《Cable and optical cable insulating and sheath material lead to With test method the 14th part:GENERAL EXPERIMENTATION low-temperature test》National standard, surveys total insulating barrier of electric-heating belt Do not ftracture in the case of all -30 DEG C of low-temperature bending, meet in GB19518.1-2004 national standard -25 DEG C~-30 DEG C indehiscent Require.
Survey the heat extensibility energy of total insulating barrier:According to GB/T2951.21-2008《Cable and optical cable insulating and sheath material GENERAL EXPERIMENTATION the 21st part:Elastomer compound Special test method ozone resistance test heat extends examination Test leaching mineral oil test》National standard, surveys the hot elongation percentage of total insulating barrier of electric-heating belt all≤80%, meets country's mark Accurate≤150% requirement.
Survey the tensile strength of total insulating barrier:According to GB/T2951《Cable and optical cable insulating and sheath material universal test side Method》, the tensile strength surveying total insulating barrier of electric-heating belt all reaches 22 MPa, far above 12.5 Mpa national standards requirements.
Survey the heat aging performance of total insulating barrier:GB/T2951《Cable and optical cable insulating and sheath material universal test side Method》, survey tensile strength change≤± 12% of total insulating barrier of electric-heating belt, less than the requirement of national standard≤± 20%.
Survey the artificial weathering test performance of total insulating barrier:According to GB12527-2008《Rated voltage 1 kV and following Aerial insulated cable》National standard, the tensile strength change of total insulating barrier and the extension at break rate of change of surveying electric-heating belt are equal ≤ ± 10%, less than the requirement of national standard≤± 15%.
Survey the resistance to mineral oil performance of total insulating barrier:According to GB/T2951.21-2008《Cable and optical cable insulating and sheath material Material GENERAL EXPERIMENTATION the 21st part:Elastomer compound Special test method ozone resistance test heat extends examination Test leaching mineral oil test》National standard, surveys the tensile strength change after total insulating barrier soaks mineral oil and extension at break becomes Rate all≤± 28%, much smaller than the requirement of GB/T12706.1-2008≤± 40%.
Survey total insulating barrier heat endurance performance:According to GB/T19518.1-2004 national standard, survey 140 DEG C of bars of electric-heating belt After depositing 4 weeks under part, bear 1500 V/1min and no puncture.
Survey the waterproof test performance of total insulating barrier:According to GB/T19835-2005《Self-limiting heating cable》National standard, surveys Bear 3.5 KV/1min after electric-heating belt immersion 48 h no to puncture.
Preferable enforcement to the present invention is illustrated above, and certainly, the present invention can also adopt and above-mentioned enforcement The different form of mode, those of ordinary skill in the art are in the equivalent conversion made without prejudice on the premise of present invention spirit Or change accordingly, all should belong in protection scope of the present invention.

Claims (4)

1. a kind of tandem type invariable power ribbon heater processing technology it is characterised in that:Comprise the following steps:
Step one, alloy heat generating core outer layer uniform weave wrap up layer of glass braiding layer, fiberglass braided Layer surface is evenly arranged one layer of inorganic lubricant powder, then extrudes one using crowded tubular type extrusion die outside fiberglass braided layer Layer bus insulation layer, uniformly brushes one layer of silicone oil in the outside of bus insulation layer, again by bus insulation layer after cooling down in atmosphere Put into be immersed in the water in bosh and cooled down, after taking out from bosh, the silicone oil of bus insulation layer surface is scraped simultaneously Reclaim, prepared invariable power heating bus;
Step 2, the invariable power heating bus surface being obtained in step one coat one layer of heat conductive silica gel, then by one or more It is coated with the invariable power heating bus of heat conductive silica gel and is a branch of bus group of generating heat, and so that heating bus group is reclaimed by silica gel Pipe, the arrival end of silica gel recovery tube, with diameter greater than port of export diameter, makes heat conductive silica gel be full of heating bus by silica gel recovery tube In group, the gap between each invariable power heating bus, then makes the heat conductive silica gel solidification being filled in heating bus group;
Step 3, using crowded tubular type extrusion die step 2 process after heating bus group outside extrude one layer of total insulating barrier, so Uniformly brush one layer of silicone oil in the outside of total insulating barrier afterwards, after cooling down in atmosphere, more total insulating barrier is put into leaching in bosh Enter in water and cooled down, after taking out from bosh, the silicone oil of total surface of insulating layer is scraped and reclaim.
2. a kind of tandem type invariable power ribbon heater processing technology according to claim 1 it is characterised in that:In step In, alloy heat generating core is made up of corronil material, and inorganic lubricant powder is talcum powder, and bus insulation layer is ethylene fluoride third Alkene copolymer material is made.
3. a kind of tandem type invariable power ribbon heater processing technology according to claim 1 it is characterised in that:In step 3 In, total insulating barrier is made up of low-smoke halogen-free flame-retardant thermoplastic polyolefine material, and low-smoke halogen-free flame-retardant thermoplastic polyolefin is by first Component and the second component form according to 37 mass ratio mixing extrusion, the wherein first group ethene being divided into metallocene catalyst and Octene realizes the thermoplastic elastomer (TPE) of in-situ polymerization, and second group is divided into ethylene-vinyl acetate copolymer.
4. a kind of tandem type invariable power ribbon heater processing technology according to claim 1 it is characterised in that:Also include step 4th, the total insulating barrier outer uniform weave parcel one metal wire layer braiding layer being obtained in step 3, equal in metal wire knitted layer surface One layer of inorganic lubricant powder of even arrangement, then extrudes one layer of oversheath using crowded tubular type extrusion die outside wire braid Layer;External sheath layer is made up of fluorinated ethylene propylene copolymer material.
CN201610824478.5A 2016-09-16 2016-09-16 Tandem type constant power ribbon heater processing technology Pending CN106455168A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108482312A (en) * 2018-03-09 2018-09-04 福耀集团长春有限公司 A kind of restoring method for glass heating wire
US11956865B2 (en) 2017-02-01 2024-04-09 Nvent Services Gmbh Low smoke, zero halogen self-regulating heating cable

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1130856A (en) * 1995-12-17 1996-09-11 赵放 Alloy PTC parallel type electric heating strip
CN2571108Y (en) * 2002-09-25 2003-09-03 时利华 Far-infrared radiation heating source
CN201674683U (en) * 2010-04-19 2010-12-15 江阴市华能电热器材有限公司 Double-core nickel-chromium alloy stranded wire silicon rubber insulation and sheath short-distance constant-power electric heating tape
CN201813568U (en) * 2010-06-01 2011-04-27 蔡振军 High temperature resisting skin effect heating cable
CN203057561U (en) * 2012-12-12 2013-07-10 乐清市日星线缆科技有限公司 Indoor thermal-insulation and heating wire

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1130856A (en) * 1995-12-17 1996-09-11 赵放 Alloy PTC parallel type electric heating strip
CN2571108Y (en) * 2002-09-25 2003-09-03 时利华 Far-infrared radiation heating source
CN201674683U (en) * 2010-04-19 2010-12-15 江阴市华能电热器材有限公司 Double-core nickel-chromium alloy stranded wire silicon rubber insulation and sheath short-distance constant-power electric heating tape
CN201813568U (en) * 2010-06-01 2011-04-27 蔡振军 High temperature resisting skin effect heating cable
CN203057561U (en) * 2012-12-12 2013-07-10 乐清市日星线缆科技有限公司 Indoor thermal-insulation and heating wire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11956865B2 (en) 2017-02-01 2024-04-09 Nvent Services Gmbh Low smoke, zero halogen self-regulating heating cable
CN108482312A (en) * 2018-03-09 2018-09-04 福耀集团长春有限公司 A kind of restoring method for glass heating wire

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Application publication date: 20170222