CN208918394U - A kind of insulator crossarm that can effectively determine service life - Google Patents
A kind of insulator crossarm that can effectively determine service life Download PDFInfo
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- CN208918394U CN208918394U CN201821125528.1U CN201821125528U CN208918394U CN 208918394 U CN208918394 U CN 208918394U CN 201821125528 U CN201821125528 U CN 201821125528U CN 208918394 U CN208918394 U CN 208918394U
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- structure sheaf
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- protective layer
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Abstract
The utility model relates to a kind of insulator crossarm that can effectively determine service life, it is characterized in that it includes the structure sheaf of the glass fibre reinforced composite material of internal layer, the section of structure sheaf is rectangle tube section, and the structure sheaf is internally provided with filled layer, and the outside of the structure sheaf is provided with protective layer；Wherein the color of structure sheaf is dead color, and the color of protective layer is light tone, and the aging speed of structure sheaf is slower than the aging speed of protective layer.The utility model is slightly slower than the aging speed of protective layer due to a kind of structure sheaf that can effectively determine on the insulator crossarm of service life, when the color fade for being observed visually protective layer, when the color of the structure sheaf inside exposing, then determine that the insulator crossarm reaches service life and should be replaced.The utility model not only has many advantages, such as that light-weight, intensity is good, impact resistance, dielectric properties are excellent, corrosion resistance, heat resistance are good, moreover it is possible to convenient for the naked eye determining service life, realize replacement in time, ensure the safe operation of electric system.
Description
Technical field
The utility model relates to a kind of insulator crossarms that can effectively determine service life.
Background technique
Cross-arm is component part important in shaft tower, its effect be for installing insulator and fitting, with support conducting wire,
Lightning conducter, and be allowed to keep certain safe distance by regulation.
And currently, the cross-arm for installing insulator is largely iron cross in power department 35KV transmission line of electricity below
Load, however iron cross arm there are anti-corrosion ability poor, poor fire, poor insulativity, the service life is short, the defects of being easily stolen.
My company has developed a kind of novel insulator crossarm for these reasons, and novel insulator crossarm uses filled layer,
Structure sheaf, protective layer integral forming process are made, and have that light-weight, intensity is good, impact resistance, dielectric properties are excellent, corrosion-resistant
Property, the advantages that heat resistance is good.In recent years, many local electricity companies were netted by state has the FRP in substitution iron cross arm on probation compound
Insulator crossarm, achieves certain effect, but about service life and how to determine qualified or not these two aspects there is
Very big puzzlement, whether iron cross arm can be fallen off by surface rust protection coating occurs whether corrosion judgement service life expires, and
Novel insulator crossarm is due to using composite material pultrusion, and the insulator crossarm of pultrusion is with the increase of the service life
Its surface will not be easy to the aging that naked eyes identify, therefore to the more difficult assurance service life of this kind of insulator crossarm, thus can not
It knows when to be replaced, relevant departments not can guarantee the security performance of electric system.
Therefore it is badly in need of seeking a kind of insulator crossarm that can effectively determine service life, not only with light-weight, intensity is good, anti-
The advantages that impact, dielectric properties are excellent, corrosion resistance, good heat resistance, moreover it is possible to convenient for the naked eye determining service life, realize
Replacement in time, ensures the safe operation of electric system.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency specifies safe operating life 20 years, and providing a kind of can have
Effect determines the insulator crossarm of service life, not only has that light-weight, intensity is good, impact resistance, dielectric properties are excellent, corrosion-resistant
Property, the advantages that heat resistance is good, moreover it is possible to convenient for the naked eye determining service life, realize replacement in time, ensure the peace of electric system
Row for the national games also complies with the theory for the power equipment facility life-cycle management that state's net is advocated.
Purpose of the utility model is realized as follows:
A kind of insulator crossarm that can effectively determine service life, it is characterised in that it includes the fiberglass reinforced composite wood of internal layer
The structure sheaf of material, the section of structure sheaf are rectangle tube section, and the structure sheaf is internally provided with filled layer, the structure sheaf it is outer
Portion is provided with protective layer；Wherein the color of structure sheaf is dead color, and the color of protective layer is light tone, and the aging speed of structure sheaf is than anti-
The aging speed of sheath is slow.
Rectangle tube section quadrangle is provided with chamfering.
The peripheral dimension of structure sheaf is 105*78mm, and the unilateral wall thickness of structure sheaf is 7.5-10mm.
Protective layer with a thickness of 1.5-2.5mm.
The color of structure sheaf is black, and the color of protective layer is yellow.
The material of the filled layer is polyurethane foam material, and the proportion of polyurethane foam material: A material is MDI:40-50 parts, B
Material is polyester polyol: 50-60 parts；
The material of the structure sheaf is glass fibre reinforced composite material, and the proportion of glass fibre reinforced composite material is: glass fibre:
60-70 parts, 30-35 parts of vinylite, curing agent and 1-3 parts of auxiliary material.
The material of the protective layer 3 is PE resin.
The more 1-3 of aging data of the aging data protective layer of structure sheaf.
The aging data of structure sheaf and the aging data of protective layer confirm in the following way respectively:
Wherein the mechanical properties decrease 30% of structure sheaf is to determine not applicable, and protective layer is subject to surface and cracking occurs, and adopts
The manually Arrhenius equation extrapolation in hydrothermal aging test method(s).
A kind of insulator crossarm that can effectively determine service life uses a kind of insulator crossarm that can effectively determine service life
Process units production, a kind of process units for the insulator crossarm that can effectively determine service life includes being sequentially arranged from front to back
Structure sheaf pultrusion mechanism, filled layer foam-injection mechanism and protective layer PE extrusion mechanism, wherein structure sheaf pultrusion mechanism packet
Include the glass fiber material unwinding rack, glass fiber material steeping vat and composite material extrusion die being arranged from front to back, filled layer injection
Foaming mechanisms includes the plug being set in composite material extrusion die, and the arrival end of plug connects polyurethane supply conduit, prevents
Sheath PE extrusion mechanism includes being set in PE extrusion die on the outside of composite material extrusion die and connection PE extrusion die enters
The PE supply conduit at mouth end.
A kind of insulator crossarm that can effectively determine service life uses a kind of insulator crossarm that can effectively determine service life
Production technology production, a kind of production technology production of the insulator crossarm that can effectively determine service life are as follows:
In the production of pultrusion, polyurethane foam material is injected by plug aperture, so that answering by structure sheaf pultrusion mechanism
Filled layer is formed in the structure sheaf that condensation material extrusion die squeezes out, and is in addition installed PE extrusion die additional at rear, is passed through PE extrusion die
Tool wraps up a layer thickness at least protective layer of 1.5mm in structure layer surface, thus reach the filled layer of insulator crossarm, structure sheaf,
The once-forming purpose of protective layer.
Compared with prior art, the utility model has the beneficial effects that
The utility model is older than protective layer due to a kind of structure sheaf that can effectively determine on the insulator crossarm of service life
Change speed is slightly slow, therefore when the color fade for being observed visually protective layer, when exposing the color of internal structure sheaf, then determining should
Insulator crossarm, which reaches service life, to be replaced.Therefore a kind of insulator crossarm that can effectively determine service life, not only has
Have the advantages that light-weight, intensity is good, impact resistance, dielectric properties are excellent, corrosion resistance, heat resistance are good, moreover it is possible to convenient for using meat
Eye determines service life, realizes replacement in time, ensures the safe operation of electric system.
Detailed description of the invention
Fig. 1 is a kind of insulator crossarm structural schematic diagram that can effectively determine service life.
Fig. 2 is a kind of schematic diagram of the process units of insulator crossarm that can effectively determine service life.
Wherein:
Filled layer 1
Structure sheaf 2
Protective layer 3
Structure sheaf pultrusion mechanism 100, glass fiber material unwinding rack 101, glass fiber material steeping vat 102, composite material extrusion die
Tool 103
Filled layer foam-injection mechanism 200, plug 201, polyurethane supply conduit 202
Protective layer PE extrusion mechanism 300, PE extrusion die 301, PE supply conduit 302.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiment is only invention a part of the embodiment, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, fall within the protection scope of the utility model.
Referring to Fig. 1 and Fig. 2, the utility model relates to a kind of insulator crossarm that can effectively determine service life, it includes
The section of the structure sheaf 2 of the glass fibre reinforced composite material of internal layer, structure sheaf 2 is rectangle tube section, is set in rectangle tube section quadrangle
It is equipped with chamfering, the peripheral dimension of structure sheaf 2 is 105*78mm, and the unilateral wall thickness of structure sheaf 2 is 7.5-10mm, the structure sheaf
2 are internally provided with filled layer 1, and the outside of the structure sheaf 2 is provided with protective layer 3；Protective layer 3 with a thickness of 1.5-2.5mm,
The color of middle structure sheaf 2 is that the color of black perhaps other dark-coloured protective layers 3 is yellow or other light tones.Structure sheaf it is old
The aging data for changing data protection layer is more.The preferably more 1-3 of aging data of the aging data protective layer of structure sheaf.
Color is divided into seven kinds of form and aspect of rainbow: warm colour: red, yellow, tangerine, Exocarpium Citri Rubrum, yellow tangerine etc., that is, seems warmer
Brighter feeling is warmed up, light tone system is known as, dead color system becomes cool colour system again, it appears that feels relatively serious, more ice-cold feeling
Referred to as dark-coloured system, such as: indigo plant, blue-black, turquoise, grey, black, grey indigo plant etc..
The material of the filled layer 1 is polyurethane foam material, and the proportion of polyurethane foam material: A material is MDI (diphenylmethyl
Alkane diisocyanate): 40-50 parts, B material is polyester polyol: 50-60 parts；
The material of the structure sheaf 2 is glass fibre reinforced composite material, and the proportion of glass fibre reinforced composite material is: glass fibers
Dimension: 60-70 parts, 30-35 parts of vinylite, 1-3 parts of auxiliary materials of curing agent and black pigment paste etc..
The material of the protective layer 3 is yellow or PE resin (the specially Yanshan Petrochemical company production of other light tones
The PE-00 trade mark), ultraviolet light can be effectively prevented and be emitted directly toward structure sheaf, due to having colour fading and item in PE resin ageing process
The characteristic of shape cracking, after the service life for reaching certain, colour fading and strip cracking due to protective layer are easy for observe
To the black of structure sheaf, there are also the materials that the ageing properties of PE resin are better than structure sheaf, to pass through observation color using unit
Variation easily determine whether to replace other PE protection layer surface smoother and excellent insulation performance, so effectively
Improve the electric property of insulator crossarm and the possibility for preventing birds from nesting.
It is practical to work as cross-arm surface discolouration tortoise since the aging life-span of PE protective layer is more more permanent than the aging life-span of structure sheaf
It splits, cross-arm body also has certain use value, certain safe margin is managed and stay for convenience, and also to ensure
The safe handling of insulator crossarm, so using color change as criterion.
A kind of process units for the insulator crossarm that can effectively determine service life: including the structure being sequentially arranged from front to back
Layer pultrusion mechanism 100, filled layer foam-injection mechanism 200 and protective layer PE extrusion mechanism 300, wherein structure sheaf pultrusion mechanism
100 include glass fiber material unwinding rack 101, glass fiber material steeping vat 102 and the composite material extrusion die being arranged from front to back
103, according to setting dryer 104 is required, filled layer foam-injection mechanism 200 includes setting at composite material extrusion die 103 rear
The plug 201 being placed in composite material extrusion die 103, the arrival end of plug 201 connect polyurethane supply conduit 202, protection
Layer PE extrusion mechanism 300 includes that the PE extrusion die 301 for being set in 103 outside of composite material extrusion die and connection PE are squeezed out
The PE supply conduit 302 at die entrance end；
A kind of production technology for the insulator crossarm that can effectively determine service life:
In the production of pultrusion, polyurethane foam material is injected by plug aperture, so that answering by structure sheaf pultrusion mechanism
Filled layer is formed in the structure sheaf that condensation material extrusion die squeezes out, and is in addition installed PE extrusion die additional at rear, is passed through PE extrusion die
Tool wraps up a layer thickness at least protective layer of 1.5mm in structure layer surface, thus reach the filled layer of insulator crossarm, structure sheaf,
The once-forming purpose of protective layer.
Embodiment one,
The material of the filled layer 1 is polyurethane foam material, and the proportion of polyurethane foam material: A material is 45 parts, and B material is poly-
Ester polyol: 55 parts；
The material of the structure sheaf 2 is glass fibre reinforced composite material, and the proportion of glass fibre reinforced composite material is: glass fibers
Dimension: 65 parts, 33 parts of vinylite, 2 parts of auxiliary materials of curing agent and black pigment paste etc.；The unilateral wall thickness of structure sheaf 2 is
7.5mm；
The material of the protective layer 3 is PE resin, overcoat thickness 1.5mm.
Wherein structure sheaf 2 (mechanical properties decrease 30% is to determine to be not suitable for) and protective layer 3 (being cracked with surface)
(Manual moist thermal aging test method is the effective ways of prediction and evaluation high molecular material service life to aging data, artificial damp and hot old
Change test method(s) bimetry in, Arrhenius equation extrapolation is a kind of widely applied method) be respectively as follows: 201400h and
185500h is approximately equivalent to: 23 years and 21 years.
Then a kind of of this embodiment can effectively determine that the insulator crossarm of service life is expected to the protective layer at the 21st year and sends out
Raw aging reduces safeguard function, and then there are also 2 years aging Slack Times for internal structure sheaf, thus in this 2 years more than needed
A kind of interior replacement for carrying out insulator crossarm that can effectively determine service life.
Embodiment two,
The material of the filled layer 1 is polyurethane foam material, and the proportion of polyurethane foam material: A material is 40 parts, and B material is poly-
Ester polyol: 60 parts；
The material of the structure sheaf 2 is glass fibre reinforced composite material, and the proportion of glass fibre reinforced composite material is: glass fibers
Dimension: 60 parts, 35 parts of vinylite, 3 parts of auxiliary materials of curing agent and black pigment paste etc.；The unilateral wall thickness of structure sheaf 2 is
8.5mm；
The material of the protective layer 3 is PE resin, overcoat thickness 2mm.
Wherein structure sheaf 2 (mechanical properties decrease 30% is to determine to be not suitable for) and protective layer 3 (being cracked with surface)
(Manual moist thermal aging test method is the effective ways of prediction and evaluation high molecular material service life to aging data, artificial damp and hot old
Change test method(s) bimetry in, Arrhenius equation extrapolation is a kind of widely applied method) be respectively as follows: 207700h and
219000h is approximately equivalent to: 26 years and 25 years.
Then a kind of of this embodiment can effectively determine that the insulator crossarm of service life is expected to the protective layer at the 25th year and sends out
Raw aging reduces safeguard function, and then there are also 1 year aging Slack Times for internal structure sheaf, thus in this 1 year more than needed
A kind of interior replacement for carrying out insulator crossarm that can effectively determine service life.
Embodiment three,
The material of the filled layer 1 is polyurethane foam material, and the proportion of polyurethane foam material: A material is 40 parts, and B material is poly-
Ester polyol: 60 parts；
The material of the structure sheaf 2 is glass fibre reinforced composite material, and the proportion of glass fibre reinforced composite material is: glass fibers
Dimension: 70 parts, 30 parts of vinylite, 1 part of auxiliary materials of curing agent and black pigment paste etc.；The unilateral wall thickness of structure sheaf 2 is 10mm；
The material of the protective layer 3 is PE resin, overcoat thickness 2.5mm.
Wherein structure sheaf 2 (mechanical properties decrease 30% is to determine to be not suitable for) and protective layer 3 (being cracked with surface)
(Manual moist thermal aging test method is the effective ways of prediction and evaluation high molecular material service life to aging data, artificial damp and hot old
Change test method(s) bimetry in, Arrhenius equation extrapolation is a kind of widely applied method) be respectively as follows: 245300h and
236500h is approximately equivalent to: 28 years and 27 years.
Then a kind of of this embodiment can effectively determine that the insulator crossarm of service life is expected to the protective layer at the 27th year and sends out
Raw aging reduces safeguard function, and then there are also 1 year aging Slack Times for internal structure sheaf, thus in this 1 year more than needed
A kind of interior replacement for carrying out insulator crossarm that can effectively determine service life.
Comparative example one,
The material of the filled layer 1 is polyurethane foam material, and the proportion of polyurethane foam material: A material is 45 parts, and B material is poly-
Ester polyol: 55 parts；
The material of the structure sheaf 2 is glass fibre reinforced composite material, and the proportion of glass fibre reinforced composite material is: glass fibers
Dimension: 65 parts, 33 parts of vinylite, 2 parts of auxiliary materials of curing agent and black pigment paste etc.；The unilateral wall thickness of structure sheaf 2 is 6mm；
The material of the protective layer 3 is PE resin, overcoat thickness 1.5mm.
Wherein structure sheaf 2 (mechanical properties decrease 30% is to determine to be not suitable for) and protective layer 3 (being cracked with surface)
(Manual moist thermal aging test method is the effective ways of prediction and evaluation high molecular material service life to aging data, artificial damp and hot old
Change test method(s) bimetry in, Arrhenius equation extrapolation is a kind of widely applied method) be respectively as follows: 175200h and
185500h is approximately equivalent to: 20 years and 21 years.
Then the insulator crossarm of this comparative example, which is expected to the protective layer generation aging at the 21st year, reduces safeguard function, and internal
Structure sheaf be then unsatisfactory for mechanical requirements already before 1 year, although the service life of structure sheaf can also reach 20 years, this
Kind scheme cannot meet the standard for effectively determining service life, and this scheme is unreasonable.
Embodiment two,
The material of the filled layer 1 is polyurethane foam material, and the proportion of polyurethane foam material: A material is 40 parts, and B material is poly-
Ester polyol: 60 parts；
The material of the structure sheaf 2 is glass fibre reinforced composite material, and the proportion of glass fibre reinforced composite material is: glass fibers
Dimension: 60 parts, 35 parts of vinylite, 3 parts of auxiliary materials of curing agent and black pigment paste etc.；The unilateral wall thickness of structure sheaf 2 is 6mm；
The material of the protective layer 3 is PE resin, overcoat thickness 1.1mm.
Wherein structure sheaf 2 (mechanical properties decrease 30% is to determine to be not suitable for) and protective layer 3 (being cracked with surface)
(Manual moist thermal aging test method is the effective ways of prediction and evaluation high molecular material service life to aging data, artificial damp and hot old
Change test method(s) bimetry in, Arrhenius equation extrapolation is a kind of widely applied method) be respectively as follows: 175200h and
131500h is approximately equivalent to: 20 years and 15 years.
Then the insulator crossarm of this comparative example, which is expected to the protective layer generation aging at the 15th year, reduces safeguard function, and internal
Structure sheaf then can just reach weathering criteria after 5 years to being unsatisfactory for mechanical requirements, therefore this scheme is unreasonable.
Comparative example three,
The material of the filled layer 1 is polyurethane foam material, and the proportion of polyurethane foam material: A material is 40 parts, and B material is poly-
Ester polyol: 60 parts；
The material of the structure sheaf 2 is glass fibre reinforced composite material, and the proportion of glass fibre reinforced composite material is: glass fibers
Dimension: 70 parts, 30 parts of vinylite, 1 part of auxiliary materials of curing agent and black pigment paste etc.；The unilateral wall thickness of structure sheaf 2 is 6mm；
The material of the protective layer 3 is PE resin, overcoat thickness 0.5mm.
Wherein structure sheaf 2 (mechanical properties decrease 30% is to determine to be not suitable for) and protective layer 3 (being cracked with surface)
(Manual moist thermal aging test method is the effective ways of prediction and evaluation high molecular material service life to aging data, artificial damp and hot old
Change test method(s) bimetry in, Arrhenius equation extrapolation is a kind of widely applied method) be respectively as follows: 201400h and
71200h is approximately equivalent to: 23 years and 8 years.
Then the insulator crossarm of this comparative example, which is expected to the protective layer generation aging at the 8th year, reduces safeguard function, and internal
Structure sheaf then can accelerated ageing after 3 years, ideal requirement in 23 years is not achieved.Therefore this scheme is unreasonable.
The above is only the specific application examples of the utility model, do not constitute any limit to the protection scope of the utility model
System.Any technical scheme formed by adopting equivalent transformation or equivalent replacement, all fall within the utility model rights protection scope it
It is interior.
Claims (7)
1. a kind of insulator crossarm that can effectively determine service life, it is characterised in that it includes the glass fibre reinforced composite material of internal layer
Structure sheaf, the section of structure sheaf is rectangle tube section, and the structure sheaf is internally provided with filled layer, the outside of the structure sheaf
It is provided with protective layer；Wherein the color of structure sheaf is dead color, and the color of protective layer is light tone, and the aging speed of structure sheaf is than protection
The aging speed of layer is slow.
2. a kind of insulator crossarm that can effectively determine service life according to claim 1, it is characterised in that in rectangular tube
Section quadrangle is provided with chamfering.
3. a kind of insulator crossarm that can effectively determine service life according to claim 1, it is characterised in that structure sheaf
Peripheral dimension is 105*78mm, and the unilateral wall thickness of structure sheaf is 7.5-10mm.
4. a kind of insulator crossarm that can effectively determine service life according to claim 1, it is characterised in that protective layer
With a thickness of 1.5-2.5mm.
5. a kind of insulator crossarm that can effectively determine service life according to claim 1, it is characterised in that structure sheaf
Color is black, and the color of protective layer is yellow.
6. a kind of insulator crossarm that can effectively determine service life according to claim 1, it is characterised in that structure sheaf
The more 1-3 of the aging data of aging data protective layer.
7. a kind of insulator crossarm that can effectively determine service life according to claim 1, it is characterised in that using a kind of
It can effectively determine the process units production of the insulator crossarm of service life, a kind of insulator crossarm that can effectively determine service life
Process units includes that structure sheaf pultrusion mechanism, filled layer foam-injection mechanism and the protective layer PE being sequentially arranged from front to back are squeezed
Mechanism out, wherein structure sheaf pultrusion mechanism include the glass fiber material unwinding rack being arranged from front to back, glass fiber material steeping vat and
Composite material extrusion die, filled layer foam-injection mechanism include the plug being set in composite material extrusion die, plug
Arrival end connects polyurethane supply conduit, and protective layer PE extrusion mechanism includes that the PE being set on the outside of composite material extrusion die is squeezed
The PE supply conduit of mold and connection PE extrusion die arrival end out.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824941A (en) * | 2018-07-17 | 2018-11-16 | 无锡市同腾复合材料有限公司 | A kind of insulator crossarm that can effectively determine service life |
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2018
- 2018-07-17 CN CN201821125528.1U patent/CN208918394U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824941A (en) * | 2018-07-17 | 2018-11-16 | 无锡市同腾复合材料有限公司 | A kind of insulator crossarm that can effectively determine service life |
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