CN109822995A - A kind of insulating method of blade interior electric heating layer - Google Patents
A kind of insulating method of blade interior electric heating layer Download PDFInfo
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- CN109822995A CN109822995A CN201910077170.2A CN201910077170A CN109822995A CN 109822995 A CN109822995 A CN 109822995A CN 201910077170 A CN201910077170 A CN 201910077170A CN 109822995 A CN109822995 A CN 109822995A
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- cloth
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- blade
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Abstract
A kind of insulating method of blade interior electrical heating elements of the present invention belongs to field of mechanical structure design.Technical solution of the present invention solidifies cloth shell by shifting to an earlier date prefabricated insulating materials, and shape is with blade profile.Completely cut off again with prefabricated curable dielectric material cloth shell after electrical heating elements upper and lower surface is completely cut off with soft state edge material cloth shell, the upper and lower surface after isolation is completely cut off with soft state edge material cloth shell again.Completely cut off carbon filament by the premanufactured skin after solidifying to enter, be opened with the cloth of soft state in intermediate isolating, guarantees that hard shell and layer of cloth are combined closely after solidifying, and prevent hole.Due to a kind of insulating method of blade interior electric heating layer, reduce the rejection rate of product, reduce production cost, and improves the safety coefficient of insulation.
Description
Technical field
A kind of insulating method of blade interior electric heating layer of the present invention belongs to field of mechanical structure design.
Background technique
Icing wind tunnel is a kind of large special wind-tunnel of performance complexity, is to guarantee that aircraft flies under the conditions of icing meteorology
Safety, expansion modern military aircraft execute the ability of task under bad weather condition, while ensureing that civilian or general-purpose aircraft is complete
The fundamental test device according to property file is provided at icing seaworthiness certification, for Airworthiness Certification, is new machine development, particularly big
Type transporter etc. develops essential important ground-testing plant.With the development of China's Aviation Industry, multi-functional icing wind
The problem of hole, but occur fan blade icing in use, high vibration occurs for rotor-support-foundation system, affect the normal of wind-tunnel
It uses.Increase electric heating anti-icing function on the basis of guaranteeing prophyll piece requirement thus, previous electrical heating elements are in appearance
Face is fixed on blade surface by bonding way, and this structure is easy to fall off under hot and cold alternation, wet environment, and insulating protection
It is difficult.A kind of electrical heating elements are manufactured now in the structure of blade interior, heating element upper and lower surface insulating materials cloth shell carry out every
Absolutely, structural member Fig. 1, this blade construction, after heating flowing, carbon filament is easy to link along glue and electrical heating elements, causes
Heating element is connected to blade body, leads to waste product occur, takes a kind of the exhausted of blade interior electric heating layer according to this case
Edge method.
Summary of the invention
It is an object of the invention to overcome the problems, such as that heating pressurization due to blade causes carbon filament and electrical heating elements to be connected, and
Using a kind of insulating method of blade interior electric heating layer.
Technical solution of the present invention: a kind of insulating method of blade interior electric heating layer, the method take following steps:
1) production insulating materials solidifies cloth shell 4, and layer of cloth has two layers, and layer of cloth direction is respectively+45 ° and -45 °, by cloth shell
It is impregnated in pre- impregnation, makes the gap seals of cloth shell, and cloth shell is solidified；
2) the cloth shell that step 1) obtains is cut, obtains two solidification cloth shells identical with blade profile；
3) the soft state cloth shell 2 of insulating materials is made, layer of cloth has two layers, and layer of cloth direction is respectively+45 ° and -45 °, by cloth shell
It is impregnated in pre- impregnation, makes the gap seals of cloth shell；
4) the cloth shell that step 3) obtains is cut, obtains three soft state cloth shells identical with blade profile；
5) two soft state cloth shells are wrapped in the surface of electrical heating elements 3, for improving the intensity of electrical heating elements, and are increased
Power-up heating element and the compactness for solidifying cloth shell；
6) solidify cloth shell with one and be wrapped in the blade outboard that layer is completed, then by soft state cloth shell, electricity obtained in step 5)
Heating element is wrapped in the outside of the solidification cloth shell, forms an assembly；
7) another is solidified into the outside that cloth shell is wrapped in the assembly that step 6) obtains.
8) another soft state cloth shell is wrapped in the outside for the assembly that step 7) obtains
9) be wrapped in the outside for the assembly that step 8) obtains with whole carbon cloth, one solidifies, make insulation system and
Blade is adjacent to, securely.
The insulating materials uses glass fibre.
Glue film is spread in 3 upper and lower surface layer of electrical heating elements, increases gel content, solidification is sufficiently and secured.
The soft state cloth shell 2 of insulating materials and insulating materials solidification 4 material of cloth shell are prepreg cloth, and cutting and layer is facilitated to spread.
Detailed description of the invention
Fig. 1 is blade electrical heating elements insulation figure
Fig. 2 is the blade electrical heating elements insulation figure after optimization
Wherein: 1 being carbon fiber layer, 2 be soft state empire cloth shell, 3 be electrical heating elements, 4 be prefabricated solidification empire cloth shell.
Specific embodiment
The present invention will be described in further detail with reference to the accompanying drawing.
By Fig. 2, as it can be seen that realizing a kind of insulating method of blade interior electric heating layer, need carbon fiber layer (1), soft state exhausted
The components such as edge cloth shell (2), prefabricated solidification empire cloth shell (4) and electrical heating elements (3).Prefabricated solidification empire cloth shell (4) and soft state
Empire cloth shell (2), layer of cloth are respectively+45 ° and -45 °, and shape is identical as blade profile ,+45 ° and -45 ° of layer of cloths increase insulating layers
Anti-torsion ability and layer of cloth fiber filament hole is made to be staggered, carries out layer paving by Fig. 2, steps are as follows for layer paving:
1, increase gel content in electrical heating elements upper and lower surface layer paving glue film, keep solidification sufficiently and secured, by two soft states
Cloth shell is wrapped in the surface of the electrical heating elements with glue film, for improving the intensity of heating element, and increase heating element with
Solidify the compactness of cloth shell；
2, it is wrapped in blade outboard with a solidification cloth shell, then soft state cloth shell obtained in step 1, heating element is wrapped up
In the outside of the solidification cloth shell, an assembly is formed；
3, another is solidified into the outside that cloth shell is wrapped in the assembly that step 2 obtains.
4, it being wrapped in step 3 outer surface with whole carbon cloth, one solidifies, and it is adjacent to insulation system and blade, securely,
Layer paving finishes.
Claims (4)
1. a kind of insulating method of blade interior electric heating layer, which is characterized in that the method takes following steps:
1) production insulating materials solidification cloth shell (4), layer of cloth have two layers, and layer of cloth direction is respectively+45 ° and -45 °, and cloth shell is existed
It is impregnated in pre- impregnation, makes the gap seals of cloth shell, and cloth shell is solidified；
2) the cloth shell that step 1) obtains is cut, obtains two solidification cloth shells identical with blade profile；
3) the soft state cloth shell (2) of insulating materials is made, layer of cloth has two layers, and layer of cloth direction is respectively+45 ° and -45 °, and cloth shell is existed
It is impregnated in pre- impregnation, makes the gap seals of cloth shell；
4) the cloth shell that step 3) obtains is cut, obtains three soft state cloth shells identical with blade profile；
5) two soft state cloth shells are wrapped in the surface of electrical heating elements (3), for improving the intensity of electrical heating elements, and are increased
Electrical heating elements and the compactness for solidifying cloth shell；
6) solidify cloth shell with one and be wrapped in the blade outboard that layer is completed, then by soft state cloth shell, heating unit obtained in step 5)
Part is wrapped in the outside of the solidification cloth shell, forms an assembly；
7) another is solidified into the outside that cloth shell is wrapped in the assembly that step 6) obtains.
8) another soft state cloth shell is wrapped in the outside for the assembly that step 7) obtains
9) outside for the assembly that step 8) obtains is wrapped in whole carbon cloth, one solidifies, and makes insulation system and blade
It is adjacent to, securely.
2. realizing a kind of insulating method of blade interior electric heating layer as described in claim 1, which is characterized in that the insulation
Material uses glass fibre, and good insulating is similar to carbon fiber performance.
3. as described in claim 1 realize the insulating method that can plant blade interior electric heating layer, which is characterized in that in heating unit
Part (3) upper and lower surface layer spreads glue film, increases gel content, and solidification is sufficiently and secured.
4. as described in claim 1 realize the insulating method that can plant blade interior electric heating layer, which is characterized in that insulating materials
Soft state cloth shell (2) insulating materials solidification cloth shell (4) material uses prepreg cloth, and cutting and layer is facilitated to spread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910077170.2A CN109822995A (en) | 2019-01-25 | 2019-01-25 | A kind of insulating method of blade interior electric heating layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910077170.2A CN109822995A (en) | 2019-01-25 | 2019-01-25 | A kind of insulating method of blade interior electric heating layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109822995A true CN109822995A (en) | 2019-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910077170.2A Pending CN109822995A (en) | 2019-01-25 | 2019-01-25 | A kind of insulating method of blade interior electric heating layer |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111231376A (en) * | 2019-12-03 | 2020-06-05 | 惠阳航空螺旋桨有限责任公司 | Electric heating unit die and method for preparing electric heating unit assembly by using same |
| CN111318334A (en) * | 2020-03-24 | 2020-06-23 | 龙游讴凡纳米材料有限公司 | Nano-material produces grinder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2673021Y (en) * | 2003-12-31 | 2005-01-19 | 许孝林 | Heating main body of electric heater |
| CN102458839A (en) * | 2009-04-14 | 2012-05-16 | 克莱博格橡胶股份有限公司 | Composite components and heat-curing resins and elastomers |
| CN202971053U (en) * | 2012-10-22 | 2013-06-05 | 保定华翼风电叶片研究开发有限公司 | Wind wheel blade of wind turbine generator |
| CN103790789A (en) * | 2014-03-10 | 2014-05-14 | 魏绍明 | Anti-icing fan blade structure the surface of which has heating function |
| US20150174843A1 (en) * | 2012-02-24 | 2015-06-25 | Sonaca S.A. | Method for producing a leading edge skin by baking a stack incorporating heating elements and layers of pre-impregnated fibres |
| CN206602671U (en) * | 2017-01-20 | 2017-10-31 | 中国商用飞机有限责任公司 | The electric heating unit of airplane antifreezing and deicing |
-
2019
- 2019-01-25 CN CN201910077170.2A patent/CN109822995A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2673021Y (en) * | 2003-12-31 | 2005-01-19 | 许孝林 | Heating main body of electric heater |
| CN102458839A (en) * | 2009-04-14 | 2012-05-16 | 克莱博格橡胶股份有限公司 | Composite components and heat-curing resins and elastomers |
| US20150174843A1 (en) * | 2012-02-24 | 2015-06-25 | Sonaca S.A. | Method for producing a leading edge skin by baking a stack incorporating heating elements and layers of pre-impregnated fibres |
| CN202971053U (en) * | 2012-10-22 | 2013-06-05 | 保定华翼风电叶片研究开发有限公司 | Wind wheel blade of wind turbine generator |
| CN103790789A (en) * | 2014-03-10 | 2014-05-14 | 魏绍明 | Anti-icing fan blade structure the surface of which has heating function |
| CN206602671U (en) * | 2017-01-20 | 2017-10-31 | 中国商用飞机有限责任公司 | The electric heating unit of airplane antifreezing and deicing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111231376A (en) * | 2019-12-03 | 2020-06-05 | 惠阳航空螺旋桨有限责任公司 | Electric heating unit die and method for preparing electric heating unit assembly by using same |
| CN111318334A (en) * | 2020-03-24 | 2020-06-23 | 龙游讴凡纳米材料有限公司 | Nano-material produces grinder |
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