CN100577972C - Production method of high strength composite material electric pole - Google Patents
Production method of high strength composite material electric pole Download PDFInfo
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- CN100577972C CN100577972C CN200810022920A CN200810022920A CN100577972C CN 100577972 C CN100577972 C CN 100577972C CN 200810022920 A CN200810022920 A CN 200810022920A CN 200810022920 A CN200810022920 A CN 200810022920A CN 100577972 C CN100577972 C CN 100577972C
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Abstract
The invention relates to a method for producing a pole used for electricity transmission line, in particular relates to a method for producing a high strength composite pole. The method includes the following steps: a, positioning a steel hollow pole on the rotating shaft of a rotational stand, then starting up a transmission device to drive the rotating shaft to rotate; b, coating vinyl ester bond on the surface of the steel hollow pole; c, after coating, winding high strength unidirectional cloth; d, after the first winding is ended, winding a second layer of unidirectional cloth; e, after the second layer of unidirectional cloth is wound, pasting a tailored roving cloth on the unidirectional cloth, and after two layers of roving cloth are pasted, continuously burying the long fiber soaked in a steeping vat between the roving cloth and the unidirectional cloth; f, winding two layers of unidirectional cloth again until the thickness of the FRP reaches 4-4.5mm, and waiting for solidifying; g, avoiding the FRP exothermic peak and starting the winding of the next unidirectional cloth, repeating until reaching the desirable thickness; in this way, a composite pole is formed. With the method, high strength poles used for transmission lines can be produced from composite material.
Description
Technical field
The present invention relates to the production method of the electric pole that uses in a kind of transmission line of electricity, specifically a kind of production method of high strength composite material electric pole.
Background technology
Defectives such as traditional transmission tower ubiquity quality weight, perishable corrosion or cracking, poor durability, application life is shorter, and various potential safety hazards appear in construction transportation and operation maintenance difficulty easily.Therefore, along with new material technology and preparation technology's thereof development, press for a kind of new material and replace traditional electric pole material, existing market often adopts fiber spiral winding technology, this technology can only be limited to products such as water supply pipe, pressure vessel, can not satisfy the amount of deflection requirement of electric pole.
Summary of the invention
The objective of the invention is to seek a kind of production method of high strength composite material electric pole, so that utilize composite material to produce the high-intensity electric pole that is used on the transmission line of electricity.
According to technical scheme provided by the invention, the production method of described high strength composite material electric pole comprises:
A, the hollow electric pole of steel body is positioned in the rotating shaft of rotating turret, opens transmission device then, drive rotating shaft and rotate;
B, at the external coating vinyl esters bonding agent of the hollow electric pole of steel body;
After c, the brushing, begin to twine high-strength unidirectional cloth, the connecing of high-strength unidirectional cloth taken the position and should be controlled at 2.5～3.5 centimeters, the winding path of unidirectional cloth is a screw type, continuous brushing resin (gel content Ying Fu, dipping perfect) on unidirectional cloth in winding process, and steep rod with row and get rid of wherein steam bubble as far as possible;
D, first pass twine second layer unidirectional cloth after twining to the end again, and the helical angle when twining second layer unidirectional cloth is different with the helical angle of first floor unidirectional cloth, but the hand of spiral of second layer unidirectional cloth should be identical with the winding direction of first floor unidirectional cloth;
E, after second layer unidirectional cloth twine to finish, the woven roving of tailoring is pasted on unidirectional cloth, after two layers of woven roving paste end, will imbed continuously between woven roving and the unidirectional cloth through the long fibre that steeping vat floods;
F, twine two layers of unidirectional cloth again, FRP (abbreviation of glass fiber reinforced plastics composite material) thickness reached 4-4.5mm and stopped to twine this moment, waited to solidify, and stopped though pasting this moment, and equipment operation can not stop, up to curing;
G, kept away FRP exothermic peak (heat that discharges during curing), the winding that enters next unidirectional cloth goes round and begins again, and until desired thickness, forms compound electric pole.
When the FRP of the last 3mm thickness of processing, in resin, add silver gray or ash gray mill base, the consumption of mill base is the 7%-9% of resin, the uniformity of FRP surface color after guaranteeing to polish.
The practical thickness of FRP is 20mm, but blank thickness should be 21-22mm.
It is width 0.3M-0.35M that the door width of cloth of described unidirectional cloth is preferably wanted customized, so that twine.
When imbedding continuous fiber, each arrangement preferably misplaces.
After forming compound electric pole, in the upper end of compound electric pole tarpaulin is set, the lower end is provided with collision mat, enters in the hollow electric pole of steel body the corroding metal inwall to prevent water and steam and mordant gas.
Between hollow electric pole of described steel body and rotating shaft, inner support is set, and utilizes inner support that hollow electric pole of steel body and rotating shaft are linked together.Guarantee fastness and stability that the hollow electric pole of steel body moves in winding
The long fibre geometrical clamp is set on rotating shaft or inner support, the long fibre group is imbedded by orientation.
Side at the hollow electric pole of steel body is provided with the adjustable shelf that is parallel to the hollow electric pole of steel body, described unidirectional cloth is placed on this adjustable shelf, described adjustable shelf comprises the bearing support that is positioned at two ends and rests two dwangs between bearing support that the length of described dwang is greater than the length of the hollow electric pole of steel body.
10KV high strength composite material electric pole (be called for short HMC electric pole) is to utilize the high strength of HMC material and the high stiffness characteristics of steel, adopt a kind of new production technology with both compound after, form a kind of new electric pole product.This is the compound electric pole of a kind of high strength, high rigidity, in light weight, corrosion-resistant, anti-aging, good economy performance, and this compound electric pole has the premium properties that simple steel electric pole or simple glass fiber reinforced plastic electric pole can't be realized.
This project has been determined technology by limited element calculation model, theory analysis (Wuhan University of Technology provides), adopt long line fiber plying technology, unidirectional cloth soaks the fat system, twines according to certain rules with the micro-control winding machine, reach needs of expected design, obtained great technological break-through.
Description of drawings
Fig. 1 is the HMC electric pole.
Fig. 2 is that unidirectional cloth twines storage rack.
The specific embodiment
The HMC material has characteristics such as intensity height, light weight, corrosion-resistant and fatigue performance, endurance quality and electrical insulation capability be good, is very suitable for making transmission tower.Compare with the steel electric pole, the HMC electric pole mainly has following characteristics:
1, light weight.The density of HMC is 1700～2000kg/m
3, and the density of steel is 7800kg/m
3, during with volume, the weight of HMC is 1/4～1/3 of steel.Light weight is one of outstanding advantage of HMC shaft tower, because light weight can reduce transportation and construction and installation cost significantly.The transmission line of electricity that is particularly suited for mountain area and weak soil property area uses.
2, intensity height.The intensity of HMC principal direction can reach more than the 800MPa, far above the anti-yield strength of common iron.Has good fatigue performance simultaneously.
3, corrosion-resistant.The HMC electric pole is good to the decay resistance and the weather resistance of corrosive mediums such as soda acid salt and organic solvent, almost is applicable to various meteorological conditions and does not change performance, the brittle fracture under low temperature breakoff phenomenon of steel pole can not occur.
4, electrical insulation capability is good.HMC electric pole electrical insulation properties is good, can reduce lead and body of the tower gap and make transmission line structure more compact.
5, designability is good.The important feature that the HMC electric pole is different from other shaft tower is its material designability, can require to select matrix and fibrous material and relative mass mark and shop layer direction etc. reasonably to design according to special structural performance, to satisfy to many-sided requirements such as shaft tower intensity, rigidity, fatigue-resistance characteristics, product colors.
6, maintainability is good.The HMC electric pole is a kind of non-maintaining structure on it because good endurance, and this to the maintenance cost that ensures the low transmission line of electricity of circuit safety and health highly significant.
But adopt HMC material electric pole to have the rigidity problem, rigidity is low to be the major defect of HMC material.We utilize the internal layer of the high stiffness characteristics of steel as the HMC electric pole, thereby can address this problem.
It is as follows that the HMC electric pole coats material requested:
A) alkali-free or medium-alkali glass fiber goods unidirectional cloth.
B) alkali-free or medium-alkali glass fiber goods 0.4 woven roving.
C) the glass fiber multiply continuous filament yarn of alkali-free or middle alkali.
D) vinyl ester resin, plurality of advantages such as have the high and glass of heat distortion temperature and goods soak into, compatibility is good, water-fast, weather-proof, corrosion-resistant.
E) auxiliary material adopt: high-performance mill base, coupling agent HK-570 fume colloidal silica, the 5% front cover styrene paraffin liquid of E4 accelerator, H-B cyclohexanone peroxide, the development of import toner.
The preparation of HMC electric pole before coating is as follows:
1, at first must do inside and outside rust cleaning, oil removing, dirt work to the hollow electric pole of steel body.
2, the inwall of the hollow electric pole of steel body is long because of span, and be subjected to the control of intracavity diameter, the manually rust cleaning of many places, oil removing, dirt can't reach ideal effect, so can adopt chemical method to solve, wherein can adopt spray process and can method, but must install metal in the hollow electric pole inner chamber of steel body additional and clean chain or rotating wash bowl, rolling limit, limit is cleaned till satisfaction.
3, the appearance of the hollow electric pole 4 of steel body can be with artificial polishing method and chemical method, but that surfaces externally and internally is all used the clear water rinsing after handling is clean, and removes residual water stainly with dried cloth or dry towel, guarantees the drying of the hollow electric pole 4 of steel body and totally can pay to paste.
4, the appearance of the hollow electric pole 4 of steel body is as there being the burr of welding, or there is salient point the part, should remove or polish with Angle polishing machine earlier.
HMC electric pole combination process is as follows:
1, will handle the hollow electric pole 4 usefulness cranes of also qualified steel body places on the rotating turret 2, all use in the rotating shaft 1 that inner support 5 is fixed on rotating turret 2 two of the hollow electric pole 4 of steel body, body welding as the hollow electric pole 4 of steel body is sewed with obvious opening part, use vinyl ester resin and magnesium powder furnishing putty pasty state (cure system adds), with batch grey cutter seam is filled out strickling, the curing back polishes flat with the 0# emery paper and removes residue.
2, every work ready after, open transmission device, drive the hollow electric pole 4 of steel body by rotating shaft 1 and rotate, prepare then to paste.
3, the thickness (practical thickness) of whole FRP (abbreviation of glass fiber reinforced plastics composite material) is 20mm, under the equipment operation normal condition, and the vinyl esters bonding agent for preparing to the external coating of the hollow electric pole 4 of steel body.
4, after all having brushed, the primary coat bonding agent begins to twine high-strength unidirectional cloth, the connecing of unidirectional cloth taken the position and should be controlled at about 3 centimeters, the unidirectional cloth winding path should be a screw type, the continuous brushing resin (gel content Ying Fu, dipping perfect) on unidirectional cloth of workman simultaneously, and steep rod with row and should get rid of wherein steam bubble as far as possible.
5, after first pass twines to the end, should change winding angle, but direction should keep original clockwise or counter clockwise direction.
6, after two layers of unidirectional cloth twine and finish, 0.4 woven roving of tailoring should be pasted on unidirectional cloth, after two layer of 0.4 woven roving pasted end, continuous fiber was imbedded between woven roving and the unidirectional cloth behind the steeping vat dipping.
7, be right after two layers of unidirectional cloth of winding, when FRP thickness reaches 4-4.5mm, stop to twine, wait to solidify.When solidifying, stop though pasting, equipment operation can not stop, and finishes up to solidifying.
8, therefore meeting release heat when FRP solidifies, when carrying out twining next time, should keep away the peak heat release of FRP, entered next time then and twined, and go round and begin again, and until desired thickness, each arrangement of imbedding of continuous fiber preferably misplaces.
9, when being last 3mmFRP, resin should add high-performance mill base (silver grey or light ash), and consumption is 7～9% of a resin, the causing property of FRP surface color after guaranteeing to polish.
10, the FRP practical thickness is 20mm, but blank thickness should be 21-22mm.
Between hollow electric pole 4 of described steel body and rotating shaft 1, inner support 5 is set, and utilizes inner support 5 that the hollow electric pole 4 of steel body is linked together with rotating shaft 1.Guarantee fastness and stability that the hollow electric pole of steel body moves in winding.On rotating shaft 1 or inner support 5, long fibre geometrical clamp 3 is set, the long fibre group is imbedded by orientation.
Side at the hollow electric pole 4 of steel body is provided with the adjustable shelf that is parallel to the hollow electric pole 4 of steel body, described unidirectional cloth is placed on this adjustable shelf, described adjustable shelf comprises the bearing support 8 that is positioned at two ends and rests the dwang 7 of 8 of two bearing supports that the length of described dwang 7 is greater than the length of the hollow electric pole 4 of steel body.During use, relevant auxiliary material is wound on the dwang 7, and when needs were wound into relevant auxiliary materials on the hollow electric pole 4 of steel body, the pulling auxiliary material got final product.
Additional requirement is as follows:
1, preferably to want customized be width 0.3～0.35M to the door width of cloth of unidirectional cloth, so that winding.
2, the goods after the composite molding completion of processing should on tarpaulin is arranged, down collision mat is arranged, prevent water and steam and the gas that is corrosive enters and the corroding metal inwall.
3, should design and processing and fabricating fixedly the internal expanding of the hollow electric pole of steel body stop, guarantee fastness and stability that the hollow electric pole of steel body moves in winding.
4, on the fixing internal expanding in two ends is stopped a long fibre positioning mechanical arm must be installed also makes the long fibre group imbed by orientation.
5, unidirectional cloth should be placed on that span is greater than the hollow electric pole of steel body on the adjustable shelf.
Points for attention are as follows:
1, when cutting 0.4 woven roving, should come cutting according to the geometric figure length of electric pole, the length of cloth should lengthen 5 centimeters on original length basis.
2, vinyl ester resin self content of wax not, as do that glass fiber reinforced plastic solidifies the back because the time of staying is oversize, when the surface does not have sticking feel, and when continuing to increase thickness, glass fiber reinforced plastic surface originally will be made activation processing, submits bonding force and self whole shearing force between layer and the layer to.
3, when goods residue 3-4mm thickness, when being remaining at last 3-4mmFRP, should add high-performance mill base and styrene paraffin liquid in the resin, mill base can adopt silver grey or light ash, and addition is 7%, and styrene paraffin liquid 5% addition is 5-6%.
4, this goods reinforcing material is based on unidirectional cloth, so in making FRP, resin content is greater than the consumption of general FRP, fully floods the FRP goods.
Claims (8)
1, the production method of high strength composite material electric pole is characterized in that:
A, the hollow electric pole of steel body (4) is positioned in the rotating shaft (1) of rotating turret (2), opens transmission device then, drive rotating shaft (1) and rotate;
B, at the external coating vinyl esters bonding agent of the hollow electric pole of steel body (4);
After c, the brushing, begin to twine high-strength unidirectional cloth, the connecing of high-strength unidirectional cloth taken the position and should be controlled at 2.5～3.5 centimeters, and the winding path of unidirectional cloth is a screw type, continuous brushing resin on unidirectional cloth in winding process, and get rid of wherein steam bubble as far as possible with row's bubble rod;
D, first pass twine second layer unidirectional cloth after twining to the end again, and the helical angle when twining second layer unidirectional cloth is different with the helical angle of first floor unidirectional cloth, but the hand of spiral of second layer unidirectional cloth should be identical with the winding direction of first floor unidirectional cloth;
E, after second layer unidirectional cloth twine to finish, the woven roving of tailoring is pasted on unidirectional cloth, after two layers of woven roving paste end, will imbed continuously between woven roving and the unidirectional cloth through the long fibre that steeping vat floods;
F, twine two layers of unidirectional cloth again, when the thickness of glass fiber reinforced plastics composite material reaches 4-4.5mm, stop to twine, wait to solidify, rotating shaft simultaneously (1) is rotated further, and finishes up to curing;
G, kept away the FRP peak heat release, entered the winding of next unidirectional cloth, went round and began again,, formed compound electric pole until desired thickness.
2, the production method of high strength composite material electric pole according to claim 1, it is characterized in that: when the FRP of the last 3mm thickness of processing, add silver gray or ash gray mill base in resin, the consumption of mill base is the 7%-9% of resin, the uniformity of FRP surface color after guaranteeing to polish.
3, the production method of high strength composite material electric pole according to claim 1 is characterized in that: the door of described unidirectional cloth is customized to be width 0.3M-0.35M, is convenient to twine.
4, the production method of high strength composite material electric pole according to claim 1, it is characterized in that: when imbedding continuous fiber, each arrangement should misplace.
5, the production method of high strength composite material electric pole according to claim 1, it is characterized in that: after forming compound electric pole, upper end at compound electric pole is provided with tarpaulin, the lower end is provided with collision mat, to prevent that water and steam and mordant gas from entering in the hollow electric pole of steel body (4) the corroding metal inwall.
6, the production method of high strength composite material electric pole according to claim 1, it is characterized in that: between hollow electric pole of described steel body (4) and rotating shaft (1), inner support (5) is set, and utilizes inner support (5) that hollow electric pole of steel body (4) and rotating shaft (1) are linked together.Guarantee fastness and stability that the hollow electric pole of steel body moves in winding
7, as the production method of high strength composite material electric pole as described in the claim 6, it is characterized in that: on rotating shaft (1) or inner support (5), long fibre geometrical clamp (3) is set, the long fibre group is imbedded by orientation.
8, the production method of high strength composite material electric pole according to claim 1, it is characterized in that: the side at the hollow electric pole of steel body (4) is provided with the adjustable shelf that is parallel to the hollow electric pole of steel body (4), described unidirectional cloth is placed on this adjustable shelf, described adjustable shelf comprises the bearing support (8) that is positioned at two ends and rests dwang (7) between two bearing supports (8) that the length of described dwang (7) is greater than the length of the hollow electric pole of steel body (4).
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| CN200810022920A CN100577972C (en) | 2008-07-02 | 2008-07-02 | Production method of high strength composite material electric pole |
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| CA2797108A1 (en) * | 2010-04-20 | 2011-10-27 | Conett, Inc. | Composite pole and method for making the same |
| CN101845913B (en) * | 2010-05-31 | 2012-09-26 | 北京玻钢院复合材料有限公司 | Composite material electric pole and preparation method thereof |
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| CN107916820B (en) * | 2017-10-27 | 2020-03-27 | 北京国网富达科技发展有限责任公司 | Composite material tower for transmission line and preparation method thereof |
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| 复合材料输电杆应用进展. 方东红，韩建平，曹翠玲.玻璃纤维，第6期. 2008 * |
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| CN101368453A (en) | 2009-02-18 |
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Effective date of registration: 20120929 Address after: 214061 Jiangsu city of Wuxi province Liangxi Road No. 12 Patentee after: Wuxi Power Supply Co., Ltd, Jiangsu Electric Power Co. Patentee after: State Grid Corporation of China Patentee after: Jiangsu Electric Power Company Address before: 214061 Jiangsu province Binhu District of Wuxi City Liangxi Road No. 12 Patentee before: Wuxi Power Supply Co., Ltd, Jiangsu Electric Power Co. |