CN113035467A - Resin fiber insulation basin for SF6 high-voltage switch equipment and manufacturing method thereof - Google Patents
Resin fiber insulation basin for SF6 high-voltage switch equipment and manufacturing method thereof Download PDFInfo
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- CN113035467A CN113035467A CN202110304831.8A CN202110304831A CN113035467A CN 113035467 A CN113035467 A CN 113035467A CN 202110304831 A CN202110304831 A CN 202110304831A CN 113035467 A CN113035467 A CN 113035467A
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- 239000000835 fiber Substances 0.000 title claims abstract description 106
- 238000009413 insulation Methods 0.000 title claims abstract description 90
- 229920005989 resin Polymers 0.000 title claims abstract description 47
- 239000011347 resin Substances 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000004744 fabric Substances 0.000 claims abstract description 53
- 239000003822 epoxy resin Substances 0.000 claims abstract description 38
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 38
- 238000003475 lamination Methods 0.000 claims abstract description 10
- 239000004020 conductor Substances 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 17
- 238000001035 drying Methods 0.000 claims description 11
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 229920006231 aramid fiber Polymers 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000007822 coupling agent Substances 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 238000005470 impregnation Methods 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 238000001721 transfer moulding Methods 0.000 claims description 3
- 238000011074 autoclave method Methods 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 238000005266 casting Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010125 resin casting Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/14—Supporting insulators
- H01B17/16—Fastening of insulators to support, to conductor, or to adjoining insulator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/40—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes epoxy resins
Abstract
The invention relates to a resin fiber insulation basin for SF6 high-voltage switch equipment and a manufacturing method thereof.A disc-shaped insulation main body adopts fiber cloth lamination and is coagulated into an integral structure by pouring epoxy resin, the fiber reinforcement strength is far higher than that of a vacuum-poured epoxy resin alumina insulation basin, the mechanical property is better, and the insulation basin is not easy to be damaged.
Description
Technical Field
The invention relates to a resin fiber insulation basin for SF6 high-voltage switch equipment and a manufacturing method thereof.
Background
The basin insulator is an important insulating part of high-voltage switch equipment and mainly plays a role in insulating, supporting and isolating an air chamber.
The traditional basin-type insulator is formed by adding alumina filler into epoxy resin and vacuum casting, and the epoxy resin is thick, so that the thickness is generally more than 40mm, and the phenomenon of cracking is easy to occur. And the castings had a density of about 2.2-2.4g/cm3 and were heavier in weight. The conductor (aluminum insert) in the middle of the basin-type insulator adopts a mode of pre-embedding and then pouring, so that stress concentration is easily formed between resin and the insert, and the hydraulic strength of the basin-type insulator is influenced.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a resin fiber insulation basin for SF6 high voltage switchgear and a method for manufacturing the same, so that the insulation basin has better mechanical properties, is not easily damaged, and can reduce the weight and cost of the insulation basin.
In order to achieve the above purpose, the invention provides a resin fiber insulation basin for SF6 high-voltage switchgear, comprising a disk-shaped insulation main body, wherein one or more electric conductors are embedded in the middle of the disk-shaped insulation main body and penetrate through two sides of the disk-shaped insulation main body; annular sealing grooves which are coaxial with the disc-shaped insulating main body are arranged on the two side faces of the disc-shaped insulating main body and close to the outer edges of the disc-shaped insulating main body; the disc-shaped insulating main body is formed by laying fiber cloth to form fiber cloth laminated layers, and the fiber cloth laminated layers and the surface of the disc-shaped insulating main body are condensed into a whole by adopting an epoxy resin pouring mode.
Preferably, the middle part of the disc-shaped insulating main body is provided with a mounting hole, a conductor is mounted in the mounting hole, and the outer peripheral surface of the conductor and the inner side wall of the mounting hole are hermetically bonded together in an adhesive manner.
More preferably, the outer peripheral surface of the conductor is provided with an external thread, and the inner surface of the mounting hole is provided with an internal thread matched with the external thread.
Preferably, a flange connection ring is connected to the outer side of the disc-shaped insulating body.
Preferably, bolt connecting holes which are uniformly distributed around the axis of the disc-shaped insulating main body are formed in the two side faces of the disc-shaped insulating main body and close to the outer edge of the disc-shaped insulating main body, and the bolt connecting holes are located on the outer side of the annular sealing groove.
Preferably, the fiber cloth is made of one or more of glass fiber, polyester fiber and aramid fiber.
Preferably, the fiber cloth laminate is formed by laying one or more fiber cloths.
Preferably, the fiber cloth laminates and the surfaces of the disc-shaped insulation bodies are cast and condensed into a whole by a vacuum impregnation method, an RTM (resin transfer molding) method or an autoclave method.
Corresponding to the resin fiber insulation basin for the SF6 high-voltage switchgear, the invention also provides a manufacturing method of the resin fiber insulation basin for the SF6 high-voltage switchgear, and the manufacturing method of the disk-shaped insulation main body comprises the following steps:
1) after a plurality of layers of fiber cloth are laid in the die cavity to form a fiber cloth lamination, sealing the die cavity;
2) vacuumizing the mold cavity to remove air in the mold cavity;
3) pouring epoxy resin into the mold cavity to enable the epoxy resin in the mold cavity to fill the mold cavity and soak the gaps among the fiber cloth laminated layers;
4) and heating the mould, opening a mould cavity after the epoxy resin is gelled, and moving the soaked disc-shaped insulating main body out to a heating curing furnace for heating and curing.
Preferably, before the fiber cloth is laid in the mold cavity, the fiber cloth is subjected to coupling agent treatment, the fiber cloth is soaked by adopting silane coupling agent, the concentration of the silane coupling agent is about 0.1-2%, after 3-6 hours of soaking, the fiber cloth is taken out and dried to room temperature, and then drying treatment is carried out, wherein the drying temperature is 120 ℃, and the drying time is about 0.5-1 hour.
As described above, the resin fiber insulation basin for SF6 high voltage switchgear and the manufacturing method thereof according to the present invention have the following advantages: in the resin fiber insulation basin for the SF6 high-voltage switch equipment, the disc-shaped insulation main body is of an integral structure formed by laminating fiber cloth and pouring epoxy resin, the tensile strength of the fiber cloth material can reach 430MPa, the bending strength can reach more than 400MPa, the traditional insulation basin is formed by pouring epoxy resin, the tensile strength of the insulation basin poured by the epoxy resin is about 100MPa, and the bending strength is 150 MPa; the strength of the fiber reinforcement is far higher than that of vacuum pouring, and the resin fiber insulation basin for SF6 high-voltage switch equipment is formed by pouring fiber materials and epoxy resin, so that the insulation performance completely meets the use requirement. Therefore, the resin fiber insulation basin for the SF6 high-voltage switch equipment has better mechanical property and is not easy to damage, so that the resin fiber insulation basin for the SF6 high-voltage switch equipment can be thinner than the traditional insulation basin under the same mechanical property requirement, the weight of the insulation basin is reduced, and the cost is reduced.
Drawings
Fig. 1 shows a schematic structure of a resin fiber insulation basin for SF6 high voltage switchgear according to the present invention.
Fig. 2 shows a schematic view of an apparatus for manufacturing a disc-shaped insulating body.
Description of the element reference numerals
1 epoxy resin
2 first valve
3 mould cavity
4 buffer
5 second valve
6 third valve
7 disc-shaped insulating body
8 flange connecting ring
9 electric conductor
10 mounting hole
11 annular seal groove on disc-shaped insulating body
Annular sealing groove on 12-flange connecting ring
13 bolt connecting hole on flange connecting ring
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1, the invention provides a resin fiber insulation basin for SF6 high voltage switchgear, comprising a disc-shaped insulation main body 7, wherein one or more electric conductors 9 are embedded in the middle of the disc-shaped insulation main body 7, and the electric conductors 9 penetrate through two sides of the disc-shaped insulation main body 7; annular sealing grooves which are coaxial with the disc-shaped insulating main body 7 are formed in the two side faces of the disc-shaped insulating main body 7 and close to the outer edges of the disc-shaped insulating main body; the disc-shaped insulating main body 7 is formed by laying fiber cloth to form fiber cloth lamination layers, and the fiber cloth lamination layers and the surface of the disc-shaped insulating main body 7 are condensed into a whole by adopting an epoxy resin pouring mode.
In the resin fiber insulation basin for the SF6 high-voltage switch equipment, the disc-shaped insulation main body 7 is of an integral structure formed by laminating fiber cloth and pouring epoxy resin, the tensile strength of the fiber cloth material can reach 430MPa, the bending strength can reach more than 400MPa, the traditional insulation basin is formed by pouring epoxy resin, the tensile strength of the insulation basin poured by the epoxy resin is about 100MPa, and the bending strength is 150 MPa; the strength of fiber reinforcement is far higher than that of vacuum pouring, and the resin fiber insulation basin for SF6 high-voltage switch equipment is formed by pouring fiber cloth and epoxy resin to form the disc-shaped insulation main body 7, so that the insulation performance completely meets the use requirement. Therefore, the resin fiber insulation basin for the SF6 high-voltage switch equipment has better mechanical property and is not easy to damage, so that the resin fiber insulation basin for the SF6 high-voltage switch equipment can be thinner than the traditional insulation basin under the same mechanical property requirement, the weight of the insulation basin is reduced, and the cost is reduced.
In order to facilitate the connection between the conductor 9 and the disc-shaped insulating main body 7, a mounting hole 10 is formed in the middle of the disc-shaped insulating main body 7, the conductor 9 is mounted in the mounting hole 10, the outer peripheral surface of the conductor 9 and the inner side wall of the mounting hole 10 are hermetically bonded together in an adhesive manner, the adhesive is a single-component or double-component epoxy adhesive with high insulating strength and high temperature resistance, the adhesive strength reaches more than 13MPa, and the Tg reaches more than 110 ℃. The connection mode is convenient and reliable, and the electric conductor 9 and the side edge of the mounting hole 10 are sealed, so that SF6 air chambers on two sides of the insulation basin can be reliably isolated. In order to enable the electric conductor 9 to be firmly connected with the mounting hole 10, the outer peripheral surface of the electric conductor 9 is provided with an external thread, and the inner surface of the mounting hole 10 is provided with an internal thread matched with the external thread, so that the electric conductor 9 is firmly and tightly connected with the mounting hole 10. Further, a groove bonding structure, a gap bonding structure, or the like may be employed between the conductor 9 and the mounting hole 10.
The resin fiber insulation basin for SF6 high-voltage switch equipment can be manufactured into the structure form of the conventional insulation basin in the prior art, such as the structure shown in figure 1, the outer side of the disc-shaped insulation main body 7 is connected with a flange connecting ring 8, bolt connecting holes 13 on the flange connecting ring are used for being connected with an outer shell such as a bus of an SF6 combined switch, as shown in figure 1, bolt connecting holes which are uniformly distributed around the axis of the disc-shaped insulation main body 7 are arranged on two side surfaces of the disc-shaped insulation main body 7 close to the outer edge of the disc-shaped insulation main body, the bolt connecting holes are positioned outside an annular sealing groove, in the insulation basin shown in figure 1, an annular sealing groove is arranged on the flange connecting ring 8, an annular sealing groove is also arranged on the disc-shaped insulation main body 7, and a sealing ring arranged in the annular sealing groove 11 on the disc-shaped insulation main body plays a main, the annular sealing groove 12 on the flange connecting ring plays a secondary sealing role for gas in the SF6 combined switch gas chamber, and can also prevent external moisture from entering the inside of the gas chamber. The disc-shaped insulating main body 7 of the resin fiber insulating basin for the SF6 high-voltage switch equipment is made by pouring fiber cloth and resin together, has good tensile and compressive properties and high strength, and can directly bear the pressing force of bolts, so that a flange connecting ring 8 on the outer side of the disc-shaped insulating main body 7 can be removed, a ring of bolt connecting holes arranged around the center of the disc-shaped insulating main body 7 is directly arranged near the outer edge of the disc-shaped insulating main body 7, and the bolt connecting holes are directly connected with a flange on an air chamber shell of the SF6 high-voltage switch equipment. Therefore, the manufacturing process of the insulation basin can be greatly simplified, and a large amount of cost can be saved.
The resin fiber insulation basin for the SF6 high-voltage switch equipment is characterized in that a disc-shaped insulation main body 7 is made of fiber cloth and resin which are poured together, the fiber cloth is made of one or more of glass fiber, polyester fiber and aramid fiber, and the disc-shaped insulation main body 7 can be made of fiber cloth supported by other materials. Preferably, the fibre cloth laminate is made up of one or more fibre cloths, which are laid up in layers, which make the disc-shaped insulating body 7 stronger. The fiber cloth layers and the surface of the disc-shaped insulating main body 7 can be integrated by vacuum impregnation, RTM (resin transfer molding) or autoclave casting.
According to the resin fiber insulation basin for the SF6 high-voltage switch equipment, the traditional epoxy resin is replaced by the fiber reinforced epoxy resin composite material for vacuum casting, aramid fiber is taken as the reinforcing material, the tensile strength can reach 430MPa, the bending strength is more than 400MPa, the epoxy resin casting tensile strength is about 100MPa, the bending strength is 150MPa, and the fiber reinforced strength is far higher than that of vacuum casting. Based on the comparison of mechanical data, compared with the traditional basin, the thickness of the insulation basin made of the composite material can be reduced by more than 1/3, and the insulation basin has better strength. In addition, the aramid fiber reinforced composite material has a density of about 1.3g/cm3 and a weight of about 60% of that of vacuum casting. In the aspect of insulation strength, the breakdown strength of the aramid fiber composite material is basically the same as that of epoxy resin casting, and is about 20 kV/mm. Meanwhile, in the resin fiber insulation basin for the SF6 high-voltage switch equipment, the conductive body 9 is embedded in the basin in a post-bonding mode, so that the problem of stress concentration caused by vacuum pouring is solved, and the water pressure strength is greatly improved.
In the resin fiber insulation basin for SF6 high-voltage switch equipment, the insulation basin adopts a composite material of fiber reinforced epoxy resin to replace a manufacturing mode of vacuum casting epoxy resin and alumina filler in the prior art, so that the mechanical property of the insulation basin can be improved, and the cost can be reduced; the breakdown strength of the fiber reinforced material is basically the same as that of epoxy resin pouring, so that the electric field structure design of the whole insulation basin does not need to be changed, such as creepage distance and the like; the fiber cloth for manufacturing the disc-shaped insulating main body 7 can be made of materials such as aramid fibers, glass fibers and polyester fibers, in order to enable epoxy resin to be capable of better impregnating the fiber cloth, the fiber cloth needs to be treated by relevant coupling agents so as to improve the wettability of resin and fibers, silane coupling agents are generally adopted, the concentration of the silane coupling agents is about 0.1-2%, the silane coupling agents are impregnated for 3-6 hours, the fiber cloth is taken out and aired to the room temperature, and then drying is carried out, wherein the drying temperature is 120 ℃, and the drying time is about 0.5-1 hour.
Corresponding to the resin fiber insulation basin for the SF6 high-voltage switchgear, the invention also provides a manufacturing method of the resin fiber insulation basin for the SF6 high-voltage switchgear, and the manufacturing method of the disk-shaped insulation main body 7 comprises the following steps:
1) after a plurality of layers of fiber cloth are laid in the mold cavity 3 to form a fiber cloth lamination, sealing the mold cavity 3;
2) vacuumizing the mold cavity 3 to remove air in the mold cavity 3;
3) pouring epoxy resin into the mold cavity 3 to enable the epoxy resin in the mold cavity 3 to fill the mold cavity 3 and to soak the gaps among the fiber cloth laminations;
4) and heating the mould, opening the mould cavity 3 after the epoxy resin is gelled, and moving the soaked disc-shaped insulating main body 7 out to a heating curing furnace for heating and curing.
Referring to fig. 2, in manufacturing the disc-shaped insulating body 7, after the above step 1), the first valve 2 is closed, the mixed resin is degassed by evacuating the container containing the epoxy resin 1, then the second valve 5 and the third valve 6 are opened to evacuate the mold cavity 3 and the pipeline, and the mold is heated to 30-50 degrees celsius, after evacuation, after the step 2) and before the step 3), the vacuum of the epoxy resin container is broken, and then the step 3) is executed, the first valve 2 is opened to allow the epoxy resin to flow into the mold cavity 3 to impregnate the fiber cloth in the mold cavity 3, when the resin flows out from the buffer 4, and no bubble is observed, the second valve 5 is closed, the mold is heated to 160 degrees celsius after the epoxy resin in the mold cavity 3 is continuously pressurized for 2-4 hours, so that the epoxy resin in the mold cavity 3 is cured, the overall dimensions of the disc-shaped insulating body 7 are ensured by the mould impression 3.
As a preferred embodiment, before the fiber cloth is laid in the mold cavity 3, the fiber cloth is subjected to a coupling agent treatment, the fiber cloth is impregnated with a silane coupling agent, the concentration of the silane coupling agent is about 0.1 to 2%, after 3 to 6 hours of impregnation, the fiber cloth is taken out and dried to room temperature, and then is dried, wherein the drying temperature is 120 ℃, and the drying time is about 0.5 to 1 hour.
Based on the technical scheme of the embodiment, the resin fiber insulation basin for the SF6 high-voltage switch equipment and the manufacturing method thereof enable the manufactured insulation basin to have better mechanical property and not to be easily damaged, and can reduce the weight of the insulation basin and reduce the cost.
In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A resin fiber insulation basin for SF6 high-voltage switch equipment comprises a disk-shaped insulation main body, wherein one or more electric conductors are embedded in the middle of the disk-shaped insulation main body and penetrate through two sides of the disk-shaped insulation main body; annular sealing grooves which are coaxial with the disc-shaped insulating main body are arranged on the two side faces of the disc-shaped insulating main body and close to the outer edges of the disc-shaped insulating main body; the disc-shaped insulation main body is characterized in that fiber cloth is adopted to be paved to form fiber cloth lamination, and the fiber cloth lamination and the surface of the disc-shaped insulation main body are coagulated into a whole in an epoxy resin pouring mode.
2. The resin fiber insulation pot for SF6 high voltage switchgear of claim 1, wherein: the disc-shaped insulating body is characterized in that a mounting hole is formed in the middle of the disc-shaped insulating body, a conductor is mounted in the mounting hole, and the outer peripheral surface of the conductor and the inner side wall of the mounting hole are bonded together in a sealing mode in an adhesive mode.
3. The resin fiber insulation pot for SF6 high voltage switchgear of claim 2, wherein: the outer peripheral surface of the electric conductor is provided with an external thread, and the inner surface of the mounting hole is provided with an internal thread matched with the external thread.
4. The resin fiber insulation pot for SF6 high voltage switchgear of claim 1, wherein: and the outer side of the disc-shaped insulating main body is connected with a flange connecting ring.
5. The resin fiber insulation pot for SF6 high voltage switchgear of claim 1, wherein: bolt connecting holes which are uniformly distributed around the axis of the disc-shaped insulating main body are formed in the two side faces of the disc-shaped insulating main body and close to the outer edge of the disc-shaped insulating main body, and the bolt connecting holes are located on the outer side of the annular sealing groove.
6. The resin fiber insulation pot for SF6 high voltage switchgear of claim 1, wherein: the fiber cloth is made of one or more of glass fiber, polyester fiber and aramid fiber.
7. The resin fiber insulation pot for SF6 high voltage switchgear of claim 1, wherein: the fiber cloth lamination is formed by one or more fiber cloths in an overlaying mode.
8. The resin fiber insulation pot for SF6 high voltage switchgear of claim 1, wherein: the fiber cloth laminates and the surface of the disc-shaped insulating main body are cast and condensed into a whole by adopting a vacuum impregnation method, an RTM (resin transfer molding) method or an autoclave method.
9. A manufacturing method of a resin fiber insulation basin for SF6 high-voltage switch equipment is characterized in that the manufacturing of a disk-shaped insulation main body comprises the following steps:
after a plurality of layers of fiber cloth are laid in the die cavity to form a fiber cloth lamination, sealing the die cavity;
vacuumizing the mold cavity to remove air in the mold cavity;
pouring epoxy resin into the mold cavity to enable the epoxy resin in the mold cavity to fill the mold cavity and soak the gaps among the fiber cloth laminated layers;
and heating the mould, opening a mould cavity after the epoxy resin is gelled, and moving the soaked disc-shaped insulating main body out to a heating curing furnace for heating and curing.
10. The method for manufacturing the resin fiber insulation pot for the SF6 high voltage switchgear of claim 9, wherein: before the fiber cloth is laid in the die cavity, the fiber cloth is subjected to coupling agent treatment, the fiber cloth is soaked by adopting a silane coupling agent, the concentration of the silane coupling agent is about 0.1-2%, after 3-6 hours of soaking, the fiber cloth is taken out and dried to room temperature, and then drying treatment is carried out, wherein the drying temperature is 120 ℃, and the drying time is about 0.5-1 hour.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110304831.8A CN113035467A (en) | 2021-03-23 | 2021-03-23 | Resin fiber insulation basin for SF6 high-voltage switch equipment and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110304831.8A CN113035467A (en) | 2021-03-23 | 2021-03-23 | Resin fiber insulation basin for SF6 high-voltage switch equipment and manufacturing method thereof |
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| CN113035467A true CN113035467A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110304831.8A Pending CN113035467A (en) | 2021-03-23 | 2021-03-23 | Resin fiber insulation basin for SF6 high-voltage switch equipment and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114141553A (en) * | 2021-10-19 | 2022-03-04 | 平高集团有限公司 | Partition plate for high-voltage switch equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563719A (en) * | 2014-10-16 | 2016-05-11 | 大连北方互感器集团有限公司 | Epoxy resin vacuum pouring technology for protection gas inflation |
| CN106448956A (en) * | 2016-11-14 | 2017-02-22 | 上海腾炎新材料有限公司 | Fiber-reinforced basin-type insulator for high voltage switchgear |
| CN109624452A (en) * | 2019-01-25 | 2019-04-16 | 江苏神马电力股份有限公司 | Aramid fiber insulation pull rod and preparation method thereof |
| CN111978513A (en) * | 2019-06-14 | 2020-11-24 | 上海雄润树脂有限公司 | Epoxy resin for pouring high-voltage switch and preparation method thereof |
-
2021
- 2021-03-23 CN CN202110304831.8A patent/CN113035467A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563719A (en) * | 2014-10-16 | 2016-05-11 | 大连北方互感器集团有限公司 | Epoxy resin vacuum pouring technology for protection gas inflation |
| CN106448956A (en) * | 2016-11-14 | 2017-02-22 | 上海腾炎新材料有限公司 | Fiber-reinforced basin-type insulator for high voltage switchgear |
| CN109624452A (en) * | 2019-01-25 | 2019-04-16 | 江苏神马电力股份有限公司 | Aramid fiber insulation pull rod and preparation method thereof |
| CN111978513A (en) * | 2019-06-14 | 2020-11-24 | 上海雄润树脂有限公司 | Epoxy resin for pouring high-voltage switch and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114141553A (en) * | 2021-10-19 | 2022-03-04 | 平高集团有限公司 | Partition plate for high-voltage switch equipment |
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Application publication date: 20210625 |