CN102280230A - Glass reinforced plastic insulating sleeve for wind driven generator and molding method of glass reinforced plastic insulating sleeve - Google Patents
Glass reinforced plastic insulating sleeve for wind driven generator and molding method of glass reinforced plastic insulating sleeve Download PDFInfo
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- CN102280230A CN102280230A CN2011101416059A CN201110141605A CN102280230A CN 102280230 A CN102280230 A CN 102280230A CN 2011101416059 A CN2011101416059 A CN 2011101416059A CN 201110141605 A CN201110141605 A CN 201110141605A CN 102280230 A CN102280230 A CN 102280230A
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Abstract
The invention discloses a glass reinforced plastic insulating sleeve for a wind driven generator and a molding method of the glass reinforced plastic insulating sleeve. The glass reinforced plastic insulating sleeve is characterized by being formed by assembling a plurality of concentric and equal-radian arc-shaped barrel walls into a barrel shape and pasting the barrel on a stator of the wind driven generator; and the glass reinforced plastic insulating sleeve has the outer diameter of 3000-6500mm, the length of 1500-2500mm and the thickness of 2.0-6.0mm. The molding method comprises the following steps of: (1) selecting raw materials for later use; (2) molding a plurality of concentric and equal-radian arc-shaped barrel walls by a mould; and (3) assembling the arc-shaped barrel walls processed in the step (2) and pasting the assembled arc-shaped barrel walls onto the stator of the wind driven generator to constitute the glass reinforced plastic insulating sleeve. As one of major parts of a wind driven generator evaporative cooling system, the glass reinforced plastic insulating sleeve is integrally pasted with a stator iron core to achieve favorable airtightness and insulating property, the defects of low external pressure resistance, poor airtightness and the like of the traditional insulating sleeve of the wind driven generator are overcome, a composite material RTM (Resin Transfer Molding) process is adopted, and the maneuverability is strong and the popularization and the application are facilitated.
Description
Technical field
The present invention relates to a kind of glass fibre reinforced plastic insulating sleeve and forming method thereof of insulating sleeve and forming method thereof, particularly a kind of wind-driven generator of wind-driven generator.
Background technology
The insulating sleeve of wind-driven generator between the rotor and stator of generator, is one of critical piece of wind-driven generator evaporative cooling system; Because stator has stronger heating phenomenon in working order down, need cool off with media such as freon, need certain rigidity, insulation property well, material sleeve that can seal isolation isolates.At present, the insulating sleeve of wind-driven generator adopts whole nonmagnetic substance more, by air blast cooling, liquid cooling mode the stator in its work is lowered the temperature, and this type of cooling is only applicable to that motor load is low, and refrigerating capacity is little, the cooling requirement of low-power machine; Can't satisfy in the powerful wind generator system that refrigerating capacity is big, regulating power and the high cooling requirement of stability requirement; To satisfy the requirement of powerful wind generator system simultaneously, insulating sleeve bulky, the deadweight of nonmagnetic substance is heavy again, has caused difficulty for the transportation and the installation of insulating sleeve.Since glass-reinforced plastic material light weight, big, the good toughness of intensity, and have the good insulation performance performance, be considered to the preferred material of evaporative cooling system insulating sleeve; Now existing report with fiber winding process formed glass steel insulating sleeve, because of its cylindrical shell is an overall structure, the critical external compressive resistance performance is better relatively; Its shortcoming is: the fail safe of bonding process is lower, and adhesive surface can not pressurize, and bond quality is difficult to guarantee; Adhesive surface does not reach needs the rigidity of itself to bear external pressure when requiring; So, bonding frock expense height; The place takies bigger, and transportation is inconvenient.Particularly fiber winding global formation still can't solve technical defectives such as proof to external pressure is low, poor air-tightness only according to the rigidity of insulating sleeve itself.
Summary of the invention
In order to overcome the defective that exists in the above-mentioned prior art, the purpose of this invention is to provide a kind of good wind-driven generator glass fibre reinforced plastic insulating sleeve and forming method thereof of proof to external pressure ability, air-tightness that improves insulating sleeve.
To achieve these goals, the technical solution used in the present invention is as follows: a kind of glass fibre reinforced plastic insulating sleeve of wind-driven generator, its characteristics are: it by many lobes concentric and etc. the arc shape barrel of radian be assembled into tubular and be adhered to and constitute on this aerogenerator stator inner surface; The external diameter of this glass fibre reinforced plastic insulating sleeve is 3000mm～6500mm, and length is 1500mm～2500mm; Thickness is 2.0-6.0mm.
Above-mentioned arc shape barrel is 6 lobes, and wherein the dual-side of 3 lobe arc shape barrels is the convex interface, and the dual-side of 3 lobe arc shape barrels is the spill interface; The arc shape barrel of the arc shape barrel of 3 lobe convex interfaces and 3 lobe spill interfaces is with alternate form lay, and the side of adjacent two arc shape barrels forms by adhesive is bonding with concavo-convex overlapping mode.
The arc shape barrel of above-mentioned convex interface is a recessed platform by outer arc to inner arc 2/3 place, and the width of this recessed platform is 20-40mm; The arc shape barrel of above-mentioned convex interface is a raised platforms by outer arc to inner arc 2/3 place, and the width of this raised platforms is identical with the width of recessed platform.
Above-mentioned convex interface and the adhesive between the spill interface are made up of resin and curing agent, and wherein, used resin can be selected in epoxy resin, acrylic resin or the polyurethane resin any for use.
To achieve these goals, the present invention also provides a kind of forming method of above-mentioned wind-driven generator glass fibre reinforced plastic insulating sleeve, comprises that step is as follows: 1) select raw material standby; 2) by many lobes of mould molding concentric and etc. the arc shape barrel of radian; 3) with step 2) arc shape barrel assembly unit after the processing and be adhered on this aerogenerator stator and become tubular, constitute its glass fibre reinforced plastic insulating sleeve;
Wherein, used raw material comprise resin matrix, fibre reinforced materials and impervious material in the step 1); Wherein, resin matrix adopts high-temperature-resistant epoxy resin or vinylite; Fibre reinforced materials adopts the non-twist E glass fibre of alkali-free loop bonding felt; Impervious material adopts fiberglass surfacing mat or the organic felt of polyester.
Step 2) the arc shape barrel in is divided into 2 kinds of structures, and a kind for dual-side is provided with the arc shape barrel of convex interface, in addition a kind of arc shape barrel that is provided with the spill interface for dual-side; The arc shape barrel of convex interface is identical with the lobe number of the arc shape barrel of spill interface; The best is respectively established 3 lobes, all adopts RTM glass fiber reinforced plastics composite material moulding process to process; Wherein, the arc shape barrel of convex interface is a recessed platform from outer arc to inner arc 2/3 place, and the width of this recessed platform is 20-40mm; The arc shape barrel of spill interface is the platform of a projection from outer arc to inner arc 2/3 place, and the width of this raised platforms is identical with the width of described recessed platform.
Step 3) described glass fibre reinforced plastic insulating sleeve assembly unit step comprises: the arc shape barrel of the convex interface that the lobe number is identical and the arc shape barrel of spill interface are with alternate form lay, and the side of adjacent two arc shape barrels forms by adhesive is bonding with concavo-convex overlapping mode; The external diameter of this glass fibre reinforced plastic insulating sleeve is 3000mm～6500mm, and length is 1500mm～2500mm; Thickness is 2.0-6.0mm.
The bonding concrete operations of the arc shape barrel of above-mentioned convex interface and the arc shape barrel of spill interface and aerogenerator stator inner surface are:
A, the inner face of the arc shape barrel of the inner face of the arc shape barrel of stator inner surface, convex interface and spill interface is cleared up respectively;
B, the arc shape barrel of the arc shape barrel of 3 lobe convex interfaces, 3 lobe spill interfaces is laid on the inner surface of this aerogenerator stator trial assembly in alternate mode and pieces together and justify, mark the relevant position at every lobe place into tubular; Take off stand-by;
C, be coated with one deck glue on inner surface of stator, bondline thickness is 0.2～0.3mm;
D, on the relevant position that is marked the first at interval arc shape barrel of bonding 3 lobe convex interfaces, it is implemented cure under pressure in proper order, is warming up to 80 ℃ and is incubated processing, naturally cools to release after the room temperature; At the arc shape barrel of the bonding 3 lobe spill interfaces in the neutral gear place that stays, simultaneously, bonding again at the joint adhesive coating of convex interface and spill interface; Then, it is implemented cure under pressure in proper order, is warming up to 80 ℃ and is incubated processing, naturally cools to release after the room temperature; Wherein, the pressure of described cure under pressure is 0.1～0.3MPa, curing time 〉=12 hour, and its heating rate≤2 ℃/min, the insulation processing time is 2 hours;
The used adhesive of glue that above-mentioned steps C is used and step D is by resin and the curing agent ratio of weight and number mixed preparing with 90-110: 30-50; Wherein, used resin can adopt in epoxy resin, acrylic resin or the polyurethane resin any.
Owing to adopted technique scheme, beneficial effect of the present invention is as follows: 1) compare with the wind-driven generator of present employing air blast cooling, liquid cooling mode, adopt the wind powered generator system of vaporization cycle cooling can satisfy high-power cooling requirement, have outstanding advantages such as refrigerating capacity is big, regulating power strong, good stability; One of critical piece that glass fibre reinforced plastic insulating sleeve of the present invention is the wind-driven generator evaporative cooling system meets the specification requirement of its proof to external pressure, sealing, insulation etc.Have also simultaneously that light weight, intensity are big, the advantage of good toughness; 2) the glass fibre reinforced plastic insulating sleeve be many lobes concentric and etc. the arc shape barrel of arc assembled, many lobes arc shape barrel is divided into two kinds of structures, a kind of dual-side of arc shape barrel is the convex interface, the dual-side of another kind of arc shape barrel is the spill interface; The alternate lay of arc shape barrel of the arc shape barrel of many lobes convex interface and many lobes spill interface and being bonded on the tubular inner surface of stator, the side of the side of convex interface and spill interface is an one with convex-concave overlapping mode and stator core integral adhesive, constitute glass fibre reinforced plastic insulating sleeve of the present invention, have good air-tightness and insulation property; Technical deficiencies such as the proof to external pressure that also can effectively overcome existing wind-driven generator insulating sleeve simultaneously is low, poor air-tightness.3) glass fibre reinforced plastic insulating sleeve of the present invention is by the branch body structure of many lobes arc shape barrel assembling, and the place takies few, the cost that has reduced transportation and installed; Can in bonding process, implement pressurization simultaneously, solidify; Can guarantee the quality of this glass fibre reinforced plastic insulating sleeve and stator adhesive surface, be adapted to the installation needs of large-scale wind driven generator.4) glass fibre reinforced plastic insulating sleeve of the present invention belongs to large size, thin walled shell products, adopts RTM composite resin transfer modling technological forming, its technical maturity, workable, have a good promotion and implementation prospect.
Description of drawings
Fig. 1 is the cross-sectional view of glass fibre reinforced plastic insulating sleeve of the present invention.
Fig. 2 is the cut-away view of Figure 1A-A face structure.
Fig. 3 is the structural representation of arc shape barrel mould.
Fig. 4 is the structural representation that glass fibre reinforced plastic insulating sleeve and aerogenerator stator inner face join.
Fig. 5 is the side-looking structural representation of Fig. 4.
Embodiment
The RTM moulding process is meant traditional composite resin transfer modling moulding process, this technology is by injection system the resin adhesive liquid for preparing to be injected the die cavity that formed product is used, implementing under the pressure effect, resin adhesive liquid flows in the reinforcing material prefabricated component and is delivered to each position, be full of die cavity and, solidify the moulding process of making composite products then by the bubble in the gummosis emptying die cavity.
Below by accompanying drawing glass fibre reinforced plastic insulating sleeve of the present invention is described in further detail.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, glass fibre reinforced plastic insulating sleeve 1 of the present invention by concentric and etc. many lobes arc shape barrel assembly unit and being adhered on this aerogenerator stator inner surface of radian constitute.
Many lobes arc shape barrel the best is set at 6 lobes, and wherein the dual-side of 3 lobe arc shape barrels is the convex interface, and the dual-side of 3 lobe arc shape barrels is the spill interface; The arc shape barrel 11 of convex interface and the arc shape barrel of spill interface 12 alternate laies and be adhesively fixed by adhesive with the rabbet overlapping mode of side constitute the glass fibre reinforced plastic insulating sleeve that is bonded as one with stator.
The dual-side of the arc shape barrel 11 of convex interface is respectively recessed platform by outer arc to inner arc 2/3 place, and the width of this recessed platform is 20-40mm;
Arc shape barrel 12 dual-sides of spill interface are the platform of a projection by outer arc to inner arc 2/3 place, the identical and corresponding setting of width of the width of this raised platforms and the recessed platform of convex interface.
The forming method of glass fibre reinforced plastic insulating sleeve of the present invention comprises the steps: 1) the selection raw material; 2) by many lobes of mould molding concentric and etc. the arc shape barrel of radian; 3) with step 2) many lobes arc shape barrel assembly unit after the processing and be adhered on this aerogenerator stator tubular to constitute described glass fibre reinforced plastic insulating sleeve;
Concrete operations are as follows:
1) selects raw material
The used raw material of the present invention comprise resin matrix, fibre reinforced materials and impervious material; Wherein resin matrix can be selected in resistant to elevated temperatures epoxy resin or the vinylite any for use; Fibre reinforced materials is selected the non-twist E glass fibre of alkali-free loop bonding felt for use; Impervious material is selected in fiberglass surfacing mat or the organic felt of polyester any for use.The adhesive of sleeve bonding usefulness is mixed with by resin and curing agent, and wherein used resin is epoxy resin, acrylic resin or polyurethane resin;
2) by many lobes of mould molding arc shape barrel
The glass fibre reinforced plastic insulating sleeve be divided into many lobes concentric and etc. the arc shape barrel of radian; The arc shape barrel is divided into two kinds of structures, and is a kind of for both sides are provided with the arc shape barrel of convex interface, and another kind of for both sides are provided with the arc shape barrel of spill interface, the arc shape barrel of convex interface is identical with the lobe number of the arc shape barrel of spill interface; The arc shape barrel of present embodiment is made as 6 lobes, and the arc shape barrel of convex interface and the arc shape barrel of spill interface respectively are 3 lobes;
The arc shape barrel is large size, thin walled covering, adopts the concrete steps of RTM glass fiber reinforced plastics composite material resin transfer molding technology to be:
(1), mould is prepared
According to the shape of convex interface arc shape barrel and spill interface arc shape barrel, the mode that adopts cast iron to pour into a mould respectively is processed into the mould 3 of arc shape barrel, and every mold is respectively equipped with upper and lower mould; Periphery along counterdie is offered seal groove; After fine finishining, it is stand-by to be embedded with sealing joint strip in seal groove;
Be provided with a gum-injecting port 31 in that the centre of patrix is logical, the diagonal angle, four limits of patrix respectively is provided with a gum outlet 32; The opposite face of upper and lower mould is cleaned out, do not had any attachment; Then, evenly apply 4 times release agents on the opposite face of upper and lower mould, this release agent can be selected commercially available 55NC release agent, no holiday for use.Palpus is coated with the second layer after waiting the first pass drying and forming-film again when applying release agent.
(2), at the upper and lower mould opposite face shop of mould 3 layer
The concrete size of the thickness of glass fibre reinforced plastic insulating sleeve 1 and specification requirement, die cavity according to the present invention, determine the non-twist E glass fibre of the alkali-free loop bonding felt and the organic felt of polyester of corresponding size, is impervious barrier with the non-twist E glass fibre of alkali-free loop bonding felt as structure sheaf, the organic felt of polyester, and the layering type of impervious barrier+structure sheaf+middle impervious barrier+structure sheaf+outer impervious barrier is at counterdie upper berth layer in adopting; Wherein, the organic felt of polyester of interior impervious barrier shop is 1 layer; 4 layers on the non-twist E glass fibre of the alkali-free loop bonding felt of structure sheaf shop; 1 layer on the organic felt of polyester of middle impervious barrier shop; 4 layers on the non-twist E glass fibre of the alkali-free loop bonding felt of second layer structure sheaf shop; 1 layer on the organic felt of polyester of outer impervious barrier shop.
(3), matched moulds, check sealing
The inspection felt is paved whole, after the sealing joint strip in the die sealing groove does not have breach, with upper and lower mould matched moulds; Check the air-tightness of matched moulds mould in a conventional manner, require in 10 minutes that cavity pressure is not less than-0.085MPa.
(4), form
The perfusion step comprises:
1. prepare resin adhesive liquid, get the resin matrix of step 1) and curing agent and mix standby with 100: 1～3 mass ratio; Wherein resin is selected resistant to elevated temperatures epoxy resin or vinylite for use, and curing agent is selected peroxidating first diketone for use; Used resin and curing agent are the commercially available prod;
2. resin adhesive liquid is refluxed with the air in the eliminating resin pipeline, and check whether the catalyst pump operation is normal; Surge tank vacuum degree is extracted into-below the 0.085MPa;
3. with hot-air blower the resin adhesive liquid temperature is controlled at 25 ± 5 ℃; Resin and curative system reflux, deaeration; Resize ratio, making initiator amount is 1～3% of resin matrix consumption, begins to the gum-injecting port injecting glue with filling gun;
4. adjust air pump pressure injection speed is controlled at per minute 2-4 time;
5. gum outlet gummosis and when not having bubble and overflowing stops injection, and stops up gum outlet and gum-injecting port; Stop injecting glue and close filling gun, again rifle is pressed to transfer to cause zero;
6. filling gun is cleaned up, in order to using again.
(5), the demoulding and back processing
Because the arc shape barrel of convex interface mainly is to stick to counterdie, during the demoulding, shovel the side seam perk with copper earlier, use the sub-demoulding of timber wedge then, more easily come off;
Because the arc shape barrel of spill interface mainly sticks to patrix, difficult drop-off.During the demoulding, shovel the side seam perk with copper earlier, use the sub-demoulding of timber wedge then, use the timber wedge period of the day from 11 p.m. to 1 a.m necessarily to note, do not run into the place of the arc shape barrel overlap joint of spill interface.Especially be noted that chock stretches De Taili, destroy lap-joint easily.Note not making product to run on the punching block when down lifting, in order to avoid scratch product surface.
Product processing needs the requirement of coincidence pattern, technological document.Process, product surface must be cleaned up, no attachment.
3) with step 2) many lobes arc shape barrel assembly unit after the processing and be adhered on this aerogenerator stator and become tubular, constitute the glass fibre reinforced plastic insulating sleeve; Concrete operations are as follows:
A, the arc shape barrel inner face of stator surface, convex interface and the arc shape barrel inner face of spill interface are cleared up respectively; Handle with the 120# sand papering, with the industrial dust collector chip that exhausts; Clean bonding surface with clean acetone, removing surface is clean, does not have any greasy dirt, attachment;
B, by the bonding process requirement, the arc shape barrel chi sequence of the arc shape barrel of 3 lobe convex interfaces, 3 lobe spill interfaces packed into pieces together the circle trial assembly on the stator inner surface, and mark the relevant position of every lobe arc shape barrel and stator; After having determined the circumferential location of arc shape barrel of the arc shape barrel of 3 lobe convex interfaces and 3 lobe spill interfaces, take off all arc shape barrels stand-by;
C, be coated with one deck glue, wrap up with polyester film and paper self-adhesive tape at the stator two ends earlier, be coated with one deck silicone grease outside, be used to prevent that the adhesive curing that is coated with from clinging the used pressure-applying tooling and the product of moulding at stator surface; Then, calculate glue-spread, join glue with resin and curing agent; Get 138 epoxy resin and aromatic amine curing agent in the present embodiment and be uniformly mixed into epoxy resin mixed glue (in addition with 90: 30 ratio of weight and number, in the glue proportioning of used resin and curing agent can also 110: 50 ratios of weight and number or 100: 40 ratios of weight and number mix), smear stator by sticking face with scraper plate, guarantee that the epoxy resin mixed glue blade coating is even, the place of no holiday, the blade coating THICKNESS CONTROL of epoxy resin mixed glue is at 0.2-0.3mm.Except that epoxy resin, used resin can also be with acrylic resin or polyurethane resin;
D, earlier by the relevant position arc shape barrel of bonding 3 lobe convex interfaces at interval, with the pressure-applying tooling of peripheral hardware it is exerted pressure then, solidify, be warming up to 80 ℃ of processing that are incubated 2 hours simultaneously, naturally cool to release after the room temperature, remove pressure-applying tooling; The arc shape barrel of bonding 3 lobe spill interfaces respectively in the neutral gear of the arc shape barrel of 3 lobe convex interfaces more simultaneously, is coated with one deck adhesive with the joint of adjacent two convex interfaces and spill interface; Then, the pressure-applying tooling that utilizes peripheral hardware to its cure under pressure, be warming up to the processing that is incubated 2 hours after 80 ℃, naturally cool to release after the room temperature, remove pressure-applying tooling; Wherein, applied pressure is 0.1～0.3MPa, curing time 〉=12 hour, its heating rate≤2 ℃/min; The used glue material of used adhesive and step C is identical, and all usable resins and curing agent are joined glue; In the present embodiment used adhesive by 138 epoxy resin and aromatic amine curing agent with 90: 30 ratio of weight and number mix the back use (in addition, in the adhesive proportioning of resin and curing agent can also 110: 50 ratios of weight and number or 100: 40 ratios of weight and number mix); Used resin also can be selected acrylic resin or polyurethane resin for use except that epoxy resin.
The bonding used pressure-applying tooling of above-mentioned steps D is two relative sectors, is placed on the two relative lobe arc shape barrels of position in the six lobe arc shape barrels in the mode of apical grafting respectively; The thick foam cotton of 10mm that on the face of being exerted pressure, also applied ointment or plaster, be used to regulate pressure-applying tooling and the arc shape barrel of exerting pressure between decrement, but the area of the sectorial area of pressure-applying tooling and single-lobe arc shape barrel bonding portion is suitable.The pressure-applying tooling of installing in the apical grafting mode is equipped with the control flexible oil cylinder of sector of exerting pressure, in order to the bonding pressure of control arc shape barrel and stator.The adjusting sector of exerting pressure closely contacts with the glass fibre reinforced plastic insulating sleeve interior surface of assembly unit, reaches the effect that glass fibre reinforced plastic insulating sleeve and stator are adjacent to.
Glass fibre reinforced plastic insulating sleeve after the moulding, its external diameter are 3000mm～6500mm, and length is 1500mm～2500mm; Thickness is 2.0-6.0mm.
After assembled formation is the glass fibre reinforced plastic insulating sleeve, be: test under the condition of 0.025MPa/15min+0.035MPa/15min+0.050MPa/15min+0.060MPa/24 h, unstable phenomenon does not take place at external pressure.
The fiberglass sleeve does not all take place because of effect unstable phenomenons such as thermal stress through the immersion and the examination of high and low temperature analogue test of coolant; The distinguish moulding, that bonding is fixed into the scheme of glass fibre reinforced plastic insulating sleeve of the present invention again is reasonable, feasible; Can satisfy the demand of high-power wind-driven generator production domesticization; The present invention simultaneously can also be applied directly to the direct current cooling vapo(u)rization system and the medium voltage converter asynchronous machine immersion type evaporation-cooled device of other model generator.
Claims (10)
1. the glass fibre reinforced plastic insulating sleeve of a wind-driven generator is characterized in that: it by many lobes concentric and etc. the arc shape barrel of radian be assembled into tubular and be adhered to and constitute on this aerogenerator stator inner surface; The external diameter of this glass fibre reinforced plastic insulating sleeve is 3000mm～6500mm, and length is 1500mm～2500mm; Thickness is 2.0-6.0mm.
2. glass fibre reinforced plastic insulating sleeve according to claim 1 is characterized in that: described arc shape barrel is 6 lobes, and wherein the dual-side of 3 lobe arc shape barrels is the convex interface, and the dual-side of 3 lobe arc shape barrels is the spill interface; The arc shape barrel of the arc shape barrel of 3 lobe convex interfaces and 3 lobe spill interfaces is with alternate form lay, and the side of adjacent two arc shape barrels is bonding in the mode of concavo-convex overlap joint.
3. glass fibre reinforced plastic insulating sleeve according to claim 2 is characterized in that: described convex interface limit is a recessed platform by outer arc to inner arc 2/3 place, and the width of this recessed platform is 20-40mm; Described spill interface limit is a raised platforms by outer arc to inner arc 2/3 place, and the width of this raised platforms is identical with the width of described recessed platform.
4. glass fibre reinforced plastic insulating sleeve according to claim 3 is characterized in that: be coated with adhesive between described convex interface and the described spill interface; Described adhesive is made up of resin and curing agent, and wherein, resin is selected in epoxy resin, acrylic resin or the polyurethane resin any for use.
5. the forming method of a wind-driven generator glass fibre reinforced plastic insulating sleeve comprises that step is as follows: 1) select raw material standby; 2) by many lobes of mould molding concentric and etc. the arc shape barrel of radian; 3) with step 2) the assembly unit of arc shape barrel and be adhered on this aerogenerator stator inner surface and form tubular and constitute described glass fibre reinforced plastic insulating sleeve; The external diameter of this glass fibre reinforced plastic insulating sleeve is 3000mm～6500mm, and length is 1500mm～2500mm; Thickness is 2.0-6.0mm;
Wherein, step 2) described arc shape barrel is divided into 2 kinds of structures, and a kind is provided with the arc shape barrel of convex interface, a kind of arc shape barrel that is provided with the spill interface for dual-side in addition for dual-side; The arc shape barrel of convex interface is identical with the lobe number of the arc shape barrel of spill interface; Step 3) described glass fibre reinforced plastic insulating sleeve assembly unit step comprises: the arc shape barrel of the convex interface that the lobe number is identical and the arc shape barrel of spill interface are with alternate form lay, and the side of adjacent two arc shape barrels forms so that concavo-convex overlapping mode is bonding.
6. forming method according to claim 5 is characterized in that: the described raw material of step 1) comprise resin matrix, fibre reinforced materials and impervious material; Wherein, resin matrix adopts high-temperature-resistant epoxy resin or vinylite; Fibre reinforced materials adopts the non-twist E glass fibre of alkali-free loop bonding felt; Impervious material adopts fiberglass surfacing mat or the organic felt of polyester.
7. forming method according to claim 6 is characterized in that: step 2) the arc shape barrel of described convex interface and the arc shape barrel of described spill interface respectively be 3 lobes, all adopts RTM glass fiber reinforced plastics composite material moulding process to process; Wherein, convex interface side by outer arc to inner arc 2/3 place is
OneRecessed platform, the width of this recessed platform are 20-40mm; At spill interface side be by outer arc to inner arc 2/3 place
OneRaised platforms, the width of this raised platforms is identical with the width of described recessed platform.
8. according to each described forming method of claim 5～7, it is characterized in that: the bonding concrete operations step of the arc shape barrel of the described convex interface of step 3) and the arc shape barrel of spill interface and described aerogenerator stator inner surface is as follows: A, the inner face of the arc shape barrel of the inner face of the arc shape barrel of stator inner surface, convex interface and spill interface is cleared up respectively; B, arc shape barrel trial assembly on described stator inner surface of the arc shape barrel of 3 lobe convex interfaces, 3 lobe spill interfaces pieced together justify, mark the relevant position at every lobe place into tubular; Take off stand-by; C, on stator inner surface gluing, its bondline thickness is 0.2～0.3mm; D, on the relevant position that is marked the first arc shape barrel of bonding 3 lobe convex interfaces, it is implemented cure under pressure in proper order, is warming up to 80 ℃ and is incubated processing, naturally cools to release after the room temperature; The arc shape barrel of bonding again 3 lobe spill interfaces, simultaneously, bonding at the joint adhesive coating of convex interface and spill interface; Then, it is implemented cure under pressure in proper order, is warming up to 80 ℃ and is incubated processing, naturally cools to release after the room temperature; Wherein, the pressure of described cure under pressure is 0.1～0.3MPa, curing time 〉=12 hour, and its heating rate≤2 ℃/min, the insulation processing time is 2 hours.
9. forming method according to claim 8 is characterized in that: the used adhesive of glue that step C is used and step D is by resin and the curing agent ratio of weight and number mixed preparing with 90-110: 30-50.
10. forming method according to claim 9 is characterized in that: described resin be in epoxy resin, acrylic resin or the polyurethane resin any.
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| CN102956334A (en) * | 2012-11-15 | 2013-03-06 | 邯郸供电公司 | Wire insulation tape |
| CN103345991A (en) * | 2013-06-29 | 2013-10-09 | 江阴市友佳珠光云母有限公司 | Mica tape end portion connection structure and connection method thereof |
| CN112564351A (en) * | 2020-12-11 | 2021-03-26 | 陕西航空电气有限责任公司 | Composite material sleeve for high-speed motor and preparation method thereof |
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| CN101025145A (en) * | 2006-02-20 | 2007-08-29 | 张志远 | Wind-driven generating apparatus |
| CN101865092A (en) * | 2009-04-14 | 2010-10-20 | 上海艾郎风电科技发展有限公司 | Method for mounting and positioning megawatt wind-power blade root end bolt |
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