CN108456991A - A kind of novel warp knitting fabric structure transformer insulating materials - Google Patents
A kind of novel warp knitting fabric structure transformer insulating materials Download PDFInfo
- Publication number
- CN108456991A CN108456991A CN201810275151.6A CN201810275151A CN108456991A CN 108456991 A CN108456991 A CN 108456991A CN 201810275151 A CN201810275151 A CN 201810275151A CN 108456991 A CN108456991 A CN 108456991A
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- China
- Prior art keywords
- fiber
- weft
- warp
- overfeeding
- section
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/06—Patterned fabrics or articles
- D04B21/08—Patterned fabrics or articles characterised by thread material
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
- D10B2101/06—Glass
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
- D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Woven Fabrics (AREA)
Abstract
The present invention relates to TRANSFORMER INSULATING MATERIAL technical fields, especially a kind of novel warp knitting fabric structure transformer insulating materials, including warp thread and weft yarn, warp thread includes several warp fibers, weft yarn is moved towards using positive and negative S types, weft yarn includes the positive S-shaped overfeeding section of weft fiber, weft fiber reverse-s shape overfeeding section and weft fiber flat segments, warp thread and weft yarn use warp knit forming technology by chaining, warp fiber forms space net structure with the positive S-shaped overfeeding section of weft fiber and weft fiber reverse-s shape overfeeding section by chaining, weft yarn flat segments are in flat by chaining and the bondage of warp thread.Apparatus of the present invention replace original machine-knitted structure using netted warp knit structure, and warp thread is designed to that form of straight lines, weft yarn are designed to positive and negative S types trend, are integrated warp thread and weft yarn bondage using chaining.By the new structural design of glass fabric, ensures that warp thread and weft yarn can generate certain deformation quantity when temperature raises and reduces, fiber is avoided to be broken.
Description
Technical field
The present invention relates to TRANSFORMER INSULATING MATERIAL technical fields, and in particular to a kind of novel warp knitting fabric structure transformer is exhausted
Edge material.
Background technology
Insulating materials is the important component for ensureing transformer job security and reliability.Alkali-free glass fibre and its product
Because having the excellent properties such as good insulation preformance, heat resistance height, solves the problems, such as that traditional insulator materials are easy to crack, become transformation
Indispensable important materials in device manufacture.Fiberglass substrate structure type in for transformer mainly has：Fiber is wound
Type, machine-woven fabric layer die mould, chopped mat are compound etc., and wherein woven fabric laminated product is most commonly used glass insulating materials production
Product.ZL200720044313.2 discloses one kind and sticking one layer of electrician's alkali-free glass with Heat-Resisting Adhesive on inorganic ceramic fiber
Cloth effectively makes up the performance deficiency of inorganic ceramic fiber paper using glass cloth, reduces the manufacturing cost of high heat-resisting electric equipment products.
ZL201010612033.3 discloses a kind of halogen-free fire-proof resin composition composite material, by epoxy resin, cyclohexanone, toluene and
Manufactured glue is coated on glass-fiber-fabric phosphonitrile fire retardant in proportion, and glass fabric laminates are made in glass cloth prepreg, are become
Excellent fireproof performance, temperature resistant grade can reach H grades of insulating materials.
Glass is main bearing part in above-mentioned insulating materials, and meeting is with transformer temperature change generation expanded by heating and to the cold
It shrinks, but warp thread and weft yarn arrange fine and close and be in tensioning state in glass-fiber-fabric, the ductility of fabric construction is poor, in addition glass
Elongation percentage it is relatively low, it is larger or brittle failure or fatigue fracture can occur after working long hours in temperature change, to the safety of transformer
Property and reliability have large effect.
Invention content
It is main bearing part the purpose of the present invention is to solve glass in insulating materials, it can be with transformer temperature change
Expanded by heating and contract on cooling occurs, but warp thread and weft yarn arrange fine and close and be in tensioning state in glass-fiber-fabric, fabric construction
Ductility is poor, and the elongation percentage of glass is relatively low in addition, larger or brittle failure or fatigue can occur after working long hours in temperature change
Fracture, has the technical issues of large effect to the safety and reliability of transformer, and proposes a kind of novel warp knitting fabric knot
Structure TRANSFORMER INSULATING MATERIAL.
To achieve the goals above, present invention employs following technical solutions：Design a kind of novel warp knitting fabric structure change
Depressor insulating materials, including warp thread and weft yarn, the warp thread include several warp fibers, and the weft yarn is moved towards using positive and negative S types,
The weft yarn includes the positive S-shaped overfeeding section of weft fiber, weft fiber reverse-s shape overfeeding section and weft fiber flat segments, the warp
Yarn and the weft yarn use warp knit forming technology by chaining, the warp fiber and the positive S-shaped overfeeding section of the weft fiber with
And the weft fiber reverse-s shape overfeeding section forms space net structure by the chaining, the weft yarn flat segments pass through described
Chaining and the bondage of the warp thread are in flat.
Preferably, the warp thread uses straight trend.
Preferably, at interval of a warp thread first order buckling occurs for the S types trend of the weft yarn.
Preferably, the weft yarn is made up of glass fiber material, and the warp thread passes through glass or aramid fiber material system
At.
Preferably, the warp thread and the weft yarn are in integrally space net structure.
Preferably, the positive S-shaped overfeeding section of the weft fiber and the weft fiber reverse-s shape overfeeding Duan Juncheng flexuosity.
Preferably, the trend of the positive S-shaped overfeeding section of the weft fiber and the weft fiber reverse-s shape overfeeding section move towards shape
At figure of eight hollow structure.
Preferably, the warp fiber is super with the positive S-shaped overfeeding section of the weft fiber and the weft fiber reverse-s shape respectively
It feeds section and the weft fiber flat segments is connected by bondage.
A kind of novel warp knitting fabric structure transformer insulating materials proposed by the present invention, advantageous effect are：
(1) apparatus of the present invention replace original machine-knitted structure using netted warp knit structure, and warp thread is designed to form of straight lines,
Weft yarn is designed to positive and negative S types trend (bending section is overfeeding part), is integrated warp thread and weft yarn bondage using chaining.Pass through glass
The new structural design of glass fabric ensures that warp thread and weft yarn can generate certain deformation quantity when temperature raises and reduces,
Fiber is avoided to be broken；
(2) apparatus of the present invention weft fiber is designed to that S types move towards, and is divided into overfeeding section and flat segments, and overfeeding section utilizes deformation
The deformation in insulating materials process of expansion and contraction is compensated, avoids fiber brittle failure；Flat segments are used to improve the carrying of grain cross
Ability.Warp fiber is designed to straight trend, improves fabric warp-wise bearing capacity, and to provide branch when weft yarn crooked position bondage
Support.At interval of a warp fiber first order buckling occurs for weft fiber, increases the length of weft yarn flat segments, improves the carrying of broadwise
Ability；The spacing for moving towards to increase adjacent glass using the S-shaped of weft fiber improves the gas permeability of insulating materials, realizes that fabric exists
There is certain deformation-compensated fiber, warp fiber and weft fiber will not be completely in and tighten shape when expanded by heating and cooling meat
State；
(3) it is reticulated, warp that the straight warp fiber of apparatus of the present invention and positive reverse-s shape weft fiber, which utilize chaining bondage,
Do not occur mutually to hook connection to fiber and weft fiber, when material expands with heat and contract with cold, warp fiber and weft fiber are in
Free extended configuration has larger deformation nargin.
(4) all pure glass fibres of integral fabric can be used in reinforcing fiber used in apparatus of the present invention novel fabric structure,
Or weft yarn is glass, warp thread is aramid fiber assorted fibre composition, have that bearing capacity is strong, deformation adaptability is good, ventilative
Property it is good the advantages that, insulating materials the problem of destroying in transformer work can be reduced, improve the safety that transformer works
And reliability.
Description of the drawings
The present invention is described in further detail for embodiment in below in conjunction with the accompanying drawings, but does not constitute to the present invention's
Any restrictions.
Fig. 1 is the overall structure diagram of apparatus of the present invention；
Fig. 2 is the enlarged diagram of A in apparatus of the present invention figure one.
In figure：1, warp thread；2, weft yarn；3, chaining；4, warp fiber；5, the positive S-shaped overfeeding section of weft fiber；6, weft fiber
Reverse-s shape overfeeding section；7, weft fiber flat segments.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Shown in attached drawing 1- attached drawings 2, a kind of novel warp knitting fabric structure transformer insulating materials of the invention, including warp
Yarn 1 and weft yarn 2, warp thread 1 include several warp fibers 4, and weft yarn 2 is moved towards using positive and negative S types, and weft yarn 2 includes the positive S-shaped of weft fiber
Overfeeding section 5, weft fiber reverse-s shape overfeeding section 6 and weft fiber flat segments 7, warp thread 1 and weft yarn 2 use warp knit by chaining 3
Forming technology, warp fiber 4 are formed with the positive S-shaped overfeeding section 5 of weft fiber and weft fiber reverse-s shape overfeeding section 6 by chaining 3
Space net structure, weft yarn flat segments 7 are in flat by chaining 3 and the bondage of warp thread 2.
Warp thread 1 uses straight trend, improves fabric warp-wise bearing capacity.
At interval of a warp thread 1 first order buckling occurs for the S types trend of weft yarn 2, increases the length of 2 flat segments of weft yarn, improves
The bearing capacity of broadwise.
Weft yarn 2 is made up of glass fiber material, and warp thread 1 is made up of glass or aramid fiber material, increases structure warp
To bearing capacity, ensure the stability of structure.
Warp thread 1 and 2 entirety of weft yarn are in space net structure, and warp fiber and weft fiber do not occur mutually to hook connection, work as material
When material expands with heat and contract with cold, warp fiber 4 and weft fiber are in free extended configuration, have larger deformation nargin.
The positive S-shaped overfeeding section 5 of weft fiber and weft fiber reverse-s shape overfeeding section 6 are in flexuosity, for compensation fibre heat
Deflection when swollen shrinkage.
It is hollow that the trend of the positive S-shaped overfeeding section of weft fiber 5 and the trend of weft fiber reverse-s shape overfeeding section 6 form the figure of eight
Structure improves the gas permeability of insulating materials.
Warp fiber 4 respectively with the positive S-shaped overfeeding section 5 of weft fiber and weft fiber reverse-s shape overfeeding section 6 and weft fiber
Flat segments 7 are connected by bondage, and warp thread 1 and broadwise do not occur mutually to hook connection, and warp thread 1 and weft yarn 2 are in free stretch-like
State, and the overfeeding section of weft yarn 2 makes fiber when fabric stress deformation have larger extensible extent.
The device is a kind of novel warp knitting fabric structure transformer insulating materials, and the fabric construction is by 2 groups of warp thread 1 and weft yarn
At whole is in space net structure, wherein weft fiber is moved towards in positive reverse-s shape, is divided into the positive S-shaped overfeeding section 5 of weft fiber, latitude
To fiber reverse-s shape overfeeding section 6 and weft fiber flat segments 7, the positive S-shaped overfeeding section 5 of weft fiber and weft fiber reverse-s shape overfeeding section
6 be in flexuosity, deflection when expanding with heat and contract with cold for compensation fibre；Weft fiber flat segments 7 are in the straight distribution of broadwise substantially,
Bearing capacity for enhancing fabric construction broadwise, weft yarn 2 occur a back-flexing at interval of a warp thread 1, increase latitude
The length of yarn flat segments improves the bearing capacity of grain cross, and the S-shaped of weft fiber is moved towards to increase the spacing of adjacent fiber,
The gas permeability of insulating materials can be improved in the figure of eight hollow structure that positive and negative S types move towards to form, and warp thread 1 is in straight trend, be can be improved
The bearing capacity of fabric warp-wise；Since weft yarn 2 is that first order buckling occurs at interval of a warp thread 1, so part in new structure
Warp thread 1 is together with positive 5 bondage of S-shaped overfeeding section of weft fiber, and another part is and 6 bondage of weft fiber reverse-s shape overfeeding section
Together, support is provided when this structure type can be bent superposition section and linkage section binding for positive and negative weft yarn simultaneously, improves fibre
Dimensional fabric reliability of structure；Structure uses warp knit moulding process, and chaining 3 is using the method for lopping by straight warp thread and positive and negative
S-shaped trend weft yarn bondage be integrated, chaining loop-forming structure schematic diagram as shown in Fig. 2, using the advantages of warp knitting technology be through
Yarn 1 and broadwise 2 do not occur mutually to hook connection, and warp thread 1 and weft yarn 2 are in free extended configuration, and the overfeeding section of weft yarn 2 makes fabric
Fiber has larger extensible extent when stress deformation.When expanded by heating, warp thread 1 and weft yarn 2 extend therewith, otherwise cooling is shunk,
The residual stress of the shortcomings that fiber will not be broken, overcome woven structure, material internal is smaller, novel fabric structure
The all pure glass fibres of integral fabric can be used in reinforcing fiber used, can be by 1 direction of warp thread and transformer axis when being laid with
Line direction is consistent, and 2 direction of weft yarn is along transformer circumferencial direction, because of deflection phase of the circumferencial direction in process of expansion and contraction
To larger, the good ductility of weft yarn overfeeding section can be made full use of to compensate the deformation of insulating materials, improve transformer insulated material
The safety in utilization of material.If fabric construction bearing capacity is inadequate, can also reinforcing fiber be changed into aramid fiber.
The advantageous effect that is reached of the present invention is：Apparatus of the present invention replace original woven knot using netted warp knit structure
Warp thread is designed to that form of straight lines, weft yarn are designed to positive and negative S types trend, are integrated warp thread and weft yarn bondage using chaining by structure.
By the new structural design of glass fabric, ensure that warp thread and weft yarn can generate certain shape when temperature raises and reduces
Variable avoids fiber from being broken；
Secondly, weft fiber is designed to that S types move towards, and is divided into overfeeding section and flat segments, and overfeeding section is compensated absolutely using deformation
Deformation in edge material process of expansion and contraction, avoids fiber brittle failure；Flat segments are used to improve the bearing capacity of grain cross.Warp-wise
Fiber is designed to straight trend, improves fabric warp-wise bearing capacity, and to provide support when weft yarn crooked position bondage.Broadwise is fine
At interval of a warp fiber first order buckling occurs for dimension, increases the length of weft yarn flat segments, improves the bearing capacity of broadwise；It utilizes
The S-shaped of weft fiber is moved towards to increase the spacing of adjacent glass, improves the gas permeability of insulating materials, realize fabric in expanded by heating and
There is certain deformation-compensated fiber, warp fiber and weft fiber will not be completely in tensioned state when cooling meat；
Also, straight warp fiber and positive reverse-s shape weft fiber are reticulated using chaining bondage, warp fiber and
Weft fiber does not occur mutually to hook connection, and when material expands with heat and contract with cold, warp fiber and weft fiber are in free stretching, extension
State has larger deformation nargin.
Also, all pure glass fibres of integral fabric or weft yarn can be used in reinforcing fiber used in novel fabric structure
For assorted fibre that glass, warp thread are aramid fiber composition, it is excellent to have that bearing capacity is strong, deformation adaptability is good, gas permeability is good etc.
Point can reduce the problem of insulating materials destroys in transformer work, improve the safety and reliability of transformer work.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of novel warp knitting fabric structure transformer insulating materials, including warp thread (1) and weft yarn (2), it is characterised in that：It is described
Warp thread (1) includes several warp fibers (4), and the weft yarn (2) is moved towards using positive and negative S types, and the weft yarn (2) includes weft fiber
Positive S-shaped overfeeding section (5), weft fiber reverse-s shape overfeeding section (6) and weft fiber flat segments (7), the warp thread (1) and described
Weft yarn (2) uses warp knit forming technology, the warp fiber (4) and the positive S-shaped overfeeding section of the weft fiber by chaining (3)
(5) and the weft fiber reverse-s shape overfeeding section (6) forms space net structure by the chaining (3), and the weft yarn is straight
Section (7) is in flat by the chaining (3) and the bondage of the warp thread (2).
2. a kind of novel warp knitting fabric structure transformer insulating materials according to claim 1, which is characterized in that the warp
Yarn (1) uses straight trend.
3. a kind of novel warp knitting fabric structure transformer insulating materials according to claim 1, which is characterized in that the latitude
At interval of a warp thread (1) first order buckling occurs for the S types trend of yarn (2).
4. a kind of novel warp knitting fabric structure transformer insulating materials according to claim 1, which is characterized in that the latitude
Yarn (2) is made up of glass fiber material, and the warp thread (1) is made up of glass or aramid fiber material.
5. a kind of novel warp knitting fabric structure transformer insulating materials according to claim 1, which is characterized in that the warp
Yarn (1) and the weft yarn (2) are in integrally space net structure.
6. a kind of novel warp knitting fabric structure transformer insulating materials according to claim 1, which is characterized in that the latitude
It is in flexuosity to the positive S-shaped overfeeding section (5) of fiber and the weft fiber reverse-s shape overfeeding section (6).
7. a kind of novel warp knitting fabric structure transformer insulating materials according to claim 1, which is characterized in that the latitude
The trend of trend and the weft fiber reverse-s shape overfeeding section (6) to the positive S-shaped overfeeding section (5) of fiber forms the hollow knot of the figure of eight
Structure.
8. a kind of novel warp knitting fabric structure transformer insulating materials according to claim 1, which is characterized in that the warp
To fiber (4) respectively with the positive S-shaped overfeeding section (5) of the weft fiber and the weft fiber reverse-s shape overfeeding section (6) and described
Weft fiber flat segments (7) are connected by bondage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810275151.6A CN108456991A (en) | 2018-03-30 | 2018-03-30 | A kind of novel warp knitting fabric structure transformer insulating materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810275151.6A CN108456991A (en) | 2018-03-30 | 2018-03-30 | A kind of novel warp knitting fabric structure transformer insulating materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108456991A true CN108456991A (en) | 2018-08-28 |
Family
ID=63238275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810275151.6A Pending CN108456991A (en) | 2018-03-30 | 2018-03-30 | A kind of novel warp knitting fabric structure transformer insulating materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108456991A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4845960A (en) * | 1983-10-31 | 1989-07-11 | Burlington Industries, Inc. | Weft insertion fabric with terry effect |
| CN103210129A (en) * | 2010-11-16 | 2013-07-17 | 东丽株式会社 | Structural warp knit sheet and laminate thereof |
| CN206148254U (en) * | 2016-11-15 | 2017-05-03 | 宜兴市飞达电工材料有限公司 | Arc line type glass fiber net check cloth |
| CN106995975A (en) * | 2017-05-18 | 2017-08-01 | 江苏理工学院 | A kind of new warp knit insulating materials, the preparation method and application of the material |
-
2018
- 2018-03-30 CN CN201810275151.6A patent/CN108456991A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4845960A (en) * | 1983-10-31 | 1989-07-11 | Burlington Industries, Inc. | Weft insertion fabric with terry effect |
| CN103210129A (en) * | 2010-11-16 | 2013-07-17 | 东丽株式会社 | Structural warp knit sheet and laminate thereof |
| CN206148254U (en) * | 2016-11-15 | 2017-05-03 | 宜兴市飞达电工材料有限公司 | Arc line type glass fiber net check cloth |
| CN106995975A (en) * | 2017-05-18 | 2017-08-01 | 江苏理工学院 | A kind of new warp knit insulating materials, the preparation method and application of the material |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180828 |
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| RJ01 | Rejection of invention patent application after publication |