CN2044658U - Fan blade made of hollow glass steel - Google Patents
Fan blade made of hollow glass steel Download PDFInfo
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- CN2044658U CN2044658U CN 88217678 CN88217678U CN2044658U CN 2044658 U CN2044658 U CN 2044658U CN 88217678 CN88217678 CN 88217678 CN 88217678 U CN88217678 U CN 88217678U CN 2044658 U CN2044658 U CN 2044658U
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- glass fibre
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- reinforced plastics
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- fibre reinforced
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Abstract
The utility model discloses a new fan blade made of the hollow glass steel, the reinforcing materials of which are reinforcing medium-alkali glass fiber one-way checked cloth, and the base substance of the glass steel is the vinyl resin. The surface of the vane adopts a surface mat resin rich layer; the resin content is 70-90%, and the inner wall of the inner cavity of the vane is provided with one layer of the polyvinyl chloride film. The source of the raw materials for manufacturing the fan blade is wide; the utility model has the advantages of low cost, simple manufacturing process, small toxicity in the producing process, good corrosion resistance, and good weather resistance; no matter the inner cavity is broad or narrow, the new fan blade made of the hollow glass steel is totally suitable.
Description
The utility model relates to a kind of fan blade, particularly open-web blower blades made of glass fibre reinforced plastics.
As everyone knows, the cloth that adopts alkali-free glass fibre to be made into abroad is that reinforcing material, epoxy resin are that matrix satisfies the requirement to intensity and modulus of open-web blower blades made of glass fibre reinforced plastics when operation.Introduce 300,000 tons of fertilizer equipments of France as Guangzhou chemical fertilizer factory of general petrochemicals factory, wherein the open-web blower blades made of glass fibre reinforced plastics of L9200 cooling tower fan is made by alkali-free glass cloth and epoxy resin exactly.Because the boric acid resource shortage of China, so that alkali-free glass production is restricted, and annual alkali-free glass fibre only accounts for about 20% of glass fibre gross production, is mainly used on the glass fiber reinforced plastics product of and some specific uses high to the electrical insulation capability requirement.Middle alkali glass is that China oneself develops, the content of its alkali metal oxide is close with international " C " glass, but boracic not, the alkali metal oxide content of the about 12%(of middle alkali glass alkali metal oxide content China alkali-free glass of China is lower than 0.5%), the raw material sources of middle alkali glass are extensive, with low cost, drawing process convenient but medium-alkali glass fibre strength ratio alkali-free glass fibre is low.China once adopted near international virgin fibre sampling method, and the tensile strength of measuring the accurate nascent state medium-alkali glass fibre of China is 268Kg/mm
2, alkali-free glass fibre is 312Kg/mm
2, the strength ratio alkali-free glass fibre of visible medium-alkali glass fibre low about 14%.China's open-web blower blades made of glass fibre reinforced plastics adopts no cured type alkali-free glass fibre weave cloth (twill, satin weave) as reinforcing material usually, (unidirectional cloth is meant in the unit width as the unidirectional weave cloth of the used alkali-free glass fibre of Shanghai glass fibre reinforced plastic structure investigation of materials, the warp fiber amount is greater than a kind of fabric of weft fiber amount), during the fan blade operation, bear very big centrifugal force and moment of torsion at Zhan Xiangyao, be a kind of typical single load bearing member, the unidirectional cloth structure can improve the unidirectional intensity of glass fibre reinforced plastics member.Because China's alkali-free glass production is limited by the boron resource, thereby alkali-free glass fibre fabric source difficulty.In addition, used by the high density weave cloth that has twist yarn to be made into (twill, satin weave), thickness is below 0.25mm, and the shop layer thickens slow, and dipping property is poor, is difficult for deaeration, the cost height.
With epoxy resin is the open-web blower blades made of glass fibre reinforced plastics that matrix is made, though corrosion resistance, good weatherability, the adhesion strength height exists deficiencys such as curing agent toxicity is big, viscosity is big, room curing adjusting range working life is little, technology capability is relatively poor.
Blade surface is generally used coating both at home and abroad, but China does not still have the glass fiber reinforced plastic surface coating of corrosion resistant, good weatherability at present, still adopts common nitro to spray paint and is coated in blade surface, in the water vapor that is corrosive, general running about 5000 hours, the surface coating fluffing that promptly comes off.
At present with pressing the open-web blower blades made of glass fibre reinforced plastics of explained hereafter on an empty stomach in the airbag, cavity wall does not have any film in it, this is because the used airbag of this technology is the silicone rubber bag, quality is thicker and heavy, and is thicker as making the used silicone rubber airbag of L47 cooling tower open-web blower blades made of glass fibre reinforced plastics, weighs about 4 kilograms, after solidifying, must take out in blade, otherwise stay in the blade inner chamber, when fan blade turns round, can influence leaf quality and performance.Because the silicone rubber airbag must take out after blade solidifies, technology is just complicated, silicone rubber airbag and resin surface of contact must the brushing releasing agent and prefabricated separation layer guarantee blade solidify after the deviating from smoothly of airbag.The silicone rubber airbag is thicker in addition, can not be used for the production of the narrow blade of inner chamber.Silicone rubber airbag price is higher in addition, as making every valency hundreds of of the L47 used silicone rubber airbag of cooling tower open-web blower blades made of glass fibre reinforced plastics unit, just scrap with several, and manufacturing process complexity in addition, thereby cost is higher.
The utility model purpose is to provide a kind of new open-web blower blades made of glass fibre reinforced plastics, both satisfied the requirement of open-web blower blades made of glass fibre reinforced plastics when operation to modulus and intensity, solved China's present open-web blower blades made of glass fibre reinforced plastics raw material sources difficulty again, shortcomings such as toxicity is big during manufacturing, cost is high, complex process, and corrosion resistant, good weatherability.
Open-web blower blades made of glass fibre reinforced plastics described in the utility model, the reinforcing material of glass fibre reinforced plastics are the unidirectional woven rovings of enhancement mode medium-alkali glass fibre.It is to handle with composite coupler that the enhancement mode medium-alkali glass fibre does not exist together with general medium-alkali glass fibre, this composite coupler is that methacrylic acid chromium complex adds the organosilan compounds, as r-aminocarbonyl propyl triethoxysilane, r-glycidol ether propyl trimethoxy silicane, r-methacrylic acid propyl trimethoxy silicane etc.After the composite coupler processing, improved the adhesive property of medium-alkali glass fibre and resin boundary surface, the neutral alkali fiberglass intensity of making improves more than 25%.The unidirectional woven roving that is made into the enhancement mode medium-alkali glass fibre, rational in infrastructure, can improve the unidirectional intensity of glass fibre reinforced plastics because of the unidirectional cloth structure, and woven roving is to be made into zero twisted yarn, dipping property is good, thicker than high density twill, satin again, overcome the used high density twill of present open-web blower blades made of glass fibre reinforced plastics, satin weave glass cloth shop layer thicken slow, dipping property is poor, be difficult for shortcoming such as deaeration.And the comparable present no cured type alkali-free glass cloth cost of cost reduces about 40%.The fan blade application result shows that its technical performance of glass fibre reinforced plastics made from the unidirectional woven roving of enhancement mode medium-alkali glass fibre has reached no cured type alkali-free glass rigidity energy index.The unidirectional woven roving of enhancement mode medium-alkali glass fibre that the utility model is commonly used is the product of being produced by four of Nanjing glass fibre research institutes and Ma'an Mountain glass fibre factory, and its kind is CWR300-90; CWR350-90; CWR450-90.Its longitude and latitude ratio is respectively 7:1; 4:1; 2:1.Also have longitude and latitude in addition than being the product of 1:1, kind is CWR400-90, CWR600-90, and sale is all arranged on the market.The main performance of product sees Table 1.
The matrix of the utility model glass fibre reinforced plastics is vinylite (claims Epocryl again or claim unsatured epoxy resin), the fundamental characteristics that not only has epoxy resin, be corrosion resistant, good weatherability, the adhesion strength height, and aspect technology capability, compare with epoxy resin, it has, and viscosity is little, the Applicable temperature scope wide, big, the advantages such as dipping property is good, room curing goods demoulding phase weak point, resin curing agent toxicity is little, price is low of adjustment range working life.The vinylite that the utility model is commonly used has the vinylite of fumaric acid modification, the vinylite of toluene di-isocyanate(TDI) modification.
Leaf surface structure of the present utility model adopts surperficial felt resin-rich layer.According to the environment difference of blade operation, can select different surperficial felt materials for use, as alkali-free glass fibre, medium-alkali glass fibre, polyster fibre, nylon fibre etc.Resin commonly used has epoxy resin (propane type epoxy resin of di phenolic group (bisphenol A type epoxy resin) that is formed by diphenol propane (bisphenol-A) and epoxychloropropane polycondensation), vinylite (as the vinylite of anti-butylene, diacid modification, the vinylite of toluene di-isocyanate(TDI) modification).Resin content in the felt resin-rich layer of surface is higher, is generally 70～90%.If fan blade running environment requires weak acid resistant, good weatherability, can select for use medium-alkali glass fibre or alkali-free glass fibre to make surperficial felt material, resin available epoxy or vinylite; Contain the water vapor that has hydrofluoric acid as blade running environment, can select for use polyamide fibre or polyster fibre to make surperficial felt material, resin available epoxy or vinylite.
Blade inner chamber interior wall construction characteristics of the present utility model are that one deck polyvinyl chloride film is arranged, the advantage of this structure is that airbag can be used alternative thicker, the heavier silicone rubber bag (Shanghai glass fibre reinforced plastic structure Materials Research Laboratories just is to use the silicone rubber air bag) of thin PVC bag when pressing empty stomach explained hereafter open-web blower blades made of glass fibre reinforced plastics with airbag is interior.This is light because the PVC airbag is thin (as producing the used PVC airbag of L47 cooling tower open-web blower blades made of glass fibre reinforced plastics thickness only about 0.1mm, weigh 100～120 grams), blade is stayed in the inner chamber after solidifying, can not influence the quality of blade during the fan blade operation, handle so needn't do the demoulding of PVC airbag, simplified technology.Because the PVC airbag is thin, blade needn't take out in inner chamber again after solidifying, thereby is not only applicable to the wide blade of inner chamber, and the blade narrow to inner chamber also is suitable for, and has solved the former problem that is unsuitable for the narrow blade production of inner chamber with the silicone rubber airbag.In addition the PVC airbag is inexpensive, as producing the used PVC airbag of L47 cooling tower open-web blower blades made of glass fibre reinforced plastics, every just about 5 yuan, add that to produce open-web blower blades made technology with the PVC airbag simple, thereby cost is low.The thickness of PVC airbag is different and different according to blade, and used PVC airbag thickness is 0.05mm～0.1mm.
The utility model enhancement mode medium-alkali glass fibre has replaced no cured type alkali-free glass fibre, be made into the reinforcing material that unidirectional woven roving is used as open-web blower blades made of glass fibre reinforced plastics with it, solve the difficult problem that China's alkali-free glass fibre is in short supply, produce open-web blower blades made of glass fibre reinforced plastics raw material sources difficulty, enlarged the application of the exclusive medium-alkali glass fibre of China.Make matrix with vinylite, make it to have concurrently the advantage of former epoxy resin corrosion resistant, good weatherability, adhesion strength height, and toxicity is little, technology capability is good.The glass fibre reinforced plastics that the glass fibre reinforced plastics made from enhancement mode medium-alkali glass fibre unidirectional cloth and vinylite can replace present no cured type alkali-free glass fiber cloth and epoxy resin to make, and cost descends about 30%.Because leaf surface structure adopts surperficial felt resin-rich layer, blade long-time running under corrosivity and field test environment proves that corrosion resistant, excellent weather resistance and hard scribble the blade that common nitro sprays paint in the surface.Cavity wall has one deck polyvinyl chloride film in the utility model blade, and its advantage is to press technological forming on an empty stomach in the available PVC airbag, makes that blade forming is easy, cost of production is low, the wide and narrow blade of inner chamber all is suitable for.
Open-web blower blades made of glass fibre reinforced plastics type and specification have multiple, but basic structure as shown in the figure.Allly do not depart from characteristic person of the present invention, all belong to the utility model design scope.
Fig. 1 is a front view of the present utility model.
Fig. 2 is the utility model axis view.
Fig. 3 is that the utility model B is to view.
Fig. 4 is that the 1:2 enlarged view is analysed and observe in A-A cross section, the wide place of the utility model largest chord.Wherein 1 is surperficial felt resin-rich layer.2 is glass fibre reinforced plastics intensity layer, its reinforcing material lay-up procedure is: with the unidirectional woven roving warp-wise of enhancement mode medium-alkali glass fibre lay to improve unidirectional intensity, above again with longitude and latitude than be the enhancement mode medium-alkali glass fibre woven roving of 1:1 with 45 ° of coverings, its effect is antitorque.3 is blade inner chamber polyvinyl chloride film layer.
Embodiment
L47 cooling tower open-web blower blades made of glass fibre reinforced plastics, blade diameter are 4.7 meters, the wide 540mm of largest chord.The reinforcing material lay-up procedure of glass fibre reinforced plastics intensity layer is: (kind is CWR-350-90 than the unidirectional woven roving of enhancement mode medium-alkali glass fibre that is 4:1 with longitude and latitude, main performance sees Table 1) the warp-wise lay, above again with longitude and latitude than enhancement mode medium-alkali glass fibre woven roving (kind is CWR-400-90, and main performance the sees Table 1) covering that is 1:1.The matrix of glass fibre reinforced plastics is the vinylite of fumaric acid modification.Blade surface adopts surperficial felt resin-rich layer structure, and surperficial felt material is a medium-alkali glass fibre, and resin is the vinylite of fumaric acid modification, and the resin content of surperficial felt resin-rich layer is 80%.Inner chamber polyvinyl chloride film thickness is 0.1mm.Blade is contained in operation down in the open on the L47 cooling tower fan, and contact medium is the water with faint acidity, moves to the present in March, 1987, and is all right.
Claims (3)
1, a kind of open-web blower blades made of glass fibre reinforced plastics is characterized in that:
The reinforcing material of a, glass fibre reinforced plastics is the unidirectional woven roving of enhancement mode medium-alkali glass fibre, and the matrix of glass fibre reinforced plastics is a vinylite,
B, blade surface adopt surperficial felt resin-rich layer,
Cavity wall has one deck polyvinyl chloride film in c, the blade.
2, open-web blower blades made of glass fibre reinforced plastics according to claim 1, the felt material that it is characterized in that surperficial felt resin-rich layer can be used a kind of in alkali-free glass fibre, medium-alkali glass fibre, polyster fibre, the nylon fibre, the resin content of surface felt resin-rich layer is 70～90%, and the resin kind is vinylite or epoxy resin.
3, open-web blower blades made of glass fibre reinforced plastics according to claim 1, the polyvinyl chloride film thickness of cavity wall is 0.05mm～0.10mm in it is characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88217678 CN2044658U (en) | 1988-11-07 | 1988-11-07 | Fan blade made of hollow glass steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88217678 CN2044658U (en) | 1988-11-07 | 1988-11-07 | Fan blade made of hollow glass steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2044658U true CN2044658U (en) | 1989-09-20 |
Family
ID=4850201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88217678 Expired - Lifetime CN2044658U (en) | 1988-11-07 | 1988-11-07 | Fan blade made of hollow glass steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2044658U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100494695C (en) * | 2007-07-20 | 2009-06-03 | 南京航空航天大学 | Composite materials cavity fan blade |
| CN101791834A (en) * | 2010-03-26 | 2010-08-04 | 保定惠阳航空螺旋桨制造厂 | Method for entirely renovating fiber glass reinforced plastic fan vane mold |
| CN102027230A (en) * | 2008-03-28 | 2011-04-20 | 刀具动力学有限公司 | A wind turbine blade |
| CN101855396B (en) * | 2007-11-09 | 2012-07-18 | 维斯塔斯风力系统有限公司 | A structural mat for reinforcing a wind turbine blade structure, a wind turbine blade and a method for manufacturing a wind turbine blade |
| CN1904353B (en) * | 2005-07-29 | 2012-07-18 | 通用电气公司 | Methods and apparatus for reducing load in a rotor blade |
| CN105899803A (en) * | 2013-11-15 | 2016-08-24 | 维斯塔斯风力系统有限公司 | Reinforcing strip for a wind turbine blade |
| CN109139549A (en) * | 2018-08-08 | 2019-01-04 | 合肥通用机械研究院有限公司 | A kind of carbon fiber axle axial flow fan blade device of wear resistant corrosion resistant |
| CN110486325A (en) * | 2019-07-29 | 2019-11-22 | 北京康姆特科技发展有限公司 | A kind of design method of composite shaft stream blade girder |
-
1988
- 1988-11-07 CN CN 88217678 patent/CN2044658U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1904353B (en) * | 2005-07-29 | 2012-07-18 | 通用电气公司 | Methods and apparatus for reducing load in a rotor blade |
| CN100494695C (en) * | 2007-07-20 | 2009-06-03 | 南京航空航天大学 | Composite materials cavity fan blade |
| CN101855396B (en) * | 2007-11-09 | 2012-07-18 | 维斯塔斯风力系统有限公司 | A structural mat for reinforcing a wind turbine blade structure, a wind turbine blade and a method for manufacturing a wind turbine blade |
| CN102027230A (en) * | 2008-03-28 | 2011-04-20 | 刀具动力学有限公司 | A wind turbine blade |
| CN102027230B (en) * | 2008-03-28 | 2015-01-21 | 刀具动力学有限公司 | A wind turbine blade |
| CN101791834A (en) * | 2010-03-26 | 2010-08-04 | 保定惠阳航空螺旋桨制造厂 | Method for entirely renovating fiber glass reinforced plastic fan vane mold |
| CN101791834B (en) * | 2010-03-26 | 2012-07-18 | 惠阳航空螺旋桨有限责任公司 | Method for entirely renovating fiber glass reinforced plastic fan vane mold |
| CN105899803A (en) * | 2013-11-15 | 2016-08-24 | 维斯塔斯风力系统有限公司 | Reinforcing strip for a wind turbine blade |
| CN109139549A (en) * | 2018-08-08 | 2019-01-04 | 合肥通用机械研究院有限公司 | A kind of carbon fiber axle axial flow fan blade device of wear resistant corrosion resistant |
| CN110486325A (en) * | 2019-07-29 | 2019-11-22 | 北京康姆特科技发展有限公司 | A kind of design method of composite shaft stream blade girder |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |