CN201690193U - 500 kV and more than 500 kV power cable outdoor terminal - Google Patents
500 kV and more than 500 kV power cable outdoor terminal Download PDFInfo
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- CN201690193U CN201690193U CN2010202138511U CN201020213851U CN201690193U CN 201690193 U CN201690193 U CN 201690193U CN 2010202138511 U CN2010202138511 U CN 2010202138511U CN 201020213851 U CN201020213851 U CN 201020213851U CN 201690193 U CN201690193 U CN 201690193U
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Abstract
The utility model relates to cable accessories of power cable power transmission system field, especially relates to a 500 kV and more than 500 kV power cable outdoor terminal, which comprises a casing tube (1), an insulating agent (2), a stress cone (3), and winding materials (10), also comprises outgoing line hardware fittings (6), an upper cover board (7), a lower base board (8) and a tail tube (9), the stress cone (3) is sleeved in the casing tube (1) and is made from liquid silicon rubber. The utility model has advantages that (1) the performance is stabilized and reliable, the yield is high, and the integrated cost is low, the liquid silicon rubber material is pure, the material quality is easy to control, the material viscosity is low, and the molding manufacturability is good; (2) the manufacturing process is simple, the manufacturing is easy, the manufacturing cost is low, the liquid silicon rubber has low viscosity, good flow property, excellent process forming performance, and small required forming pressure before sulfuration; (3) the product quality is good.
Description
Technical field
The utility model relates to the electric cable accessories in a kind of power cable transmission system field, particularly a kind of 500kV and the above power cable outdoor terminal of 500kV.
Background technology
At present, in the power cable transmission system of 500kV and the above electric pressure of 500kV, cable mostly is power cable with cross-linked polyethylene insulation, and outdoor terminal is used for being connected between power cable with cross-linked polyethylene insulation and the overhead wire, in order to realize the transmission of electric energy.Construction along with large hydropower station, hydroenergy storage station, extra-high voltage grid, the use amount of outdoor terminal is increasing, in 500kV and the power cable connected system more than the 500kV, outdoor terminal is important connector, and the reliability of outdoor terminal directly has influence on the reliability of transmission system.
In 500kV and the above power cable outdoor terminal of 500kV, the stress cone of the outdoor terminal that generally uses is the structural shape of integral prefabricated insulation at present, the outdoor terminal of this structure, it comprises sleeve pipe, insulating compound, stress cone and wrapped material, also include outlet gold utensil, upper cover plate, lower shoe and tail pipe, stress cone is contained in the sleeve pipe, and stress cone is made by ethylene propylene diene monomer (EPDM) material.It is when insulation shield is cut off that stress cone mainly acts on, play the effect of uniform electric field and reinforced insulation out of doors in the terminal, also provide essential thrust to the surface of cable simultaneously, to improve terminal integral insulation level, stress cone is the critical component of outdoor terminal.Because stress cone is made by ethylene propylene diene monomer (EPDM) material, therefore present 500kV and the above power cable outdoor terminal of 500kV exists following defective:
(1) quality of materials of making stress cone is difficult to control, and the material ethylene propylene diene rubber of stress cone mainly is the terpolymer of ethene, propylene and non-conjugated diene hydrocarbon, and in the process of mixing and have multiple additives to add, the prescription complexity is difficult to the control material quality; The viscosity of material height, moulding process is poor, and the rate of finished products of stress cone has only about 60%.
(2) complex manufacturing technology, the former pressure that the machining stress awl needs is big, bulky, production cost height.When ethylene propylene diene monomer (EPDM) material is processed into stress cone, employed equipment is annotated rubber machine structure referring to shown in Figure 3, during making the material ethylene propylene diene rubber is placed in the barrel 21, be expelled in the mould 23 by injection mechanism 22, mould 23 is made up of the mold 23-1 and the bed die 23-2 of mutual coupling, and heating back material sulfidization molding in mold cavity is a stress cone.Because the viscosity of ethylene propylene diene rubber after plasticizing is very high, and it is mobile poor, be injected into die cavity, need tens pressure, die cavity and equipment need bear very high pressure in the injection process, because the mould volume is very big, need the special special use of large-tonnage large-scale notes rubber machine and large mold just can annotate the rubber moulding, and used material wants a shot to finish, therefore produce the stress cone of 500kV and the above power cable outdoor terminal of 500kV, the notes rubber machine tonnage that needs reaches more than 1600 tons, the single injecting glue reaches the requirement that could satisfy prefabricated stress cone more than 80 liters, such equipment volume is big, the equipment cost height, and increasing of equipment cost causes whole cost of manufacture high.
(3) because ethylene propylene diene rubber has higher hardness, Shao Shi A60～70, poor with the stickiness of cable surface, cause the installation difficulty of product and the increase of hazard rate, the aging back of the watertight aircase of ethylene propylene diene rubber mechanical performance (aging condition: 135 ℃ ± 3 ℃, 7d), compression set≤15～25%, tensile strength rate of change≤20～30%, the rate of change of percentage elongation≤20～30%, material ageing resistance, heat-resisting quantity relatively poor, product will move under≤100 ℃ of environmental conditions, use is restricted, narrow application range.
Though the above power cable outdoor terminal of existing 500kV and 500kV exists above-mentioned defective, people can't solve this technical barrier always for a long time.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of stable and reliable for performance, rate of finished products is high, manufacture craft is simple, making is easy, cost is low, the measured 500kV of matter and the above power cable outdoor terminal of 500kV.
Realize that the above-mentioned purpose technical scheme is: the above power cable outdoor terminal of a kind of 500kV and 500kV, include sleeve pipe, insulating compound, stress cone and wrapped material, also include outlet gold utensil, upper cover plate, lower shoe and tail pipe, stress cone is contained in the sleeve pipe, and described stress cone is made by liquid silastic.
Further, described stress cone is made up of electric conductor and insulator.
Further, described insulating compound is insulating oil or insulating gas.
After adopting technique scheme, therefore the utility model has a lot of benefits owing to the manufacturing materials with the critical component stress cone is improved to liquid silastic by ethylene propylene diene rubber:
(1) stable and reliable for performance, the rate of finished products height, integrated cost is low.Make the quality of materials of stress cone and control easily, the material liquid silicon rubber material of stress cone is simple, need not mix separately, and prescription is simple, easily the control material quality; Viscosity of material is low, and moulding process is good, and the rate of finished products of stress cone can reach about 90%, and the utility model properties of product are more reliable and more stable, the rate of finished products height, and time-saving energy-saving, integrated cost descends more than 40%.
(2) manufacture craft is simple, makes easily, and cost of manufacture is low.Liquid silastic is a class organic silica gel of relative mixed milling type semisolid silicon rubber and common room temperature vulcanization one pack system silica gel, have lower viscosity and good mobility before the liquid silastic sulfuration, viscosity only is 1/10 of ethylene propylene diene rubber, has more excellent technological forming, therefore manufacture craft is simple, make easily, the briquetting pressure that needs is little, do not need the special special use large-scale notes rubber machine and the large mold of big pressure to carry out the injecting glue moulding, only need just can finish the injecting glue moulding with common injecting glue equipment and mold, as adopt the two component glue-injection machines of liquid silastic, and the glue-injection machine pressure that needs needs only several million, and pressure is 1/10 of ethylene propylene diene rubber notes rubber machine, the injecting glue function is injected continuously, single can reach 400 liters, and the injecting glue amount can satisfy the needs of the stress cone production of 500kV and the above power cable outdoor terminal of 500kV, and equipment volume is little, equipment cost reduces greatly, making apparatus is easy to get, and makes easily, and therefore cost of manufacture of the present utility model is low.
(3) good product quality.Because liquid silastic has lower hardness, Shao Shi A35～45 are good with the stickiness of cable surface, product is installed easily, and hazard rate is low, the aging back of the watertight aircase of liquid silastic mechanical performance (aging condition: 135 ℃ ± 3 ℃, 7d), compression set≤15%, tensile strength rate of change≤10%, the rate of change of percentage elongation≤10%, material ageing resistance good, heat-resisting quantity is good, product can long-time running under 100～150 ℃ of environmental conditions, good product quality, applied widely.
The utility model has solved the complicated technical problem that the available technology adopting ethylene propylene diene rubber exists with simple technical scheme cleverly, has solved insoluble always this technical barrier of people for a long time.
Description of drawings
Fig. 1 is the utility model structural representation that has part 20 cables;
Glue-injection machine structural representation when Fig. 2 is the making of the utility model spare 3 stress cones employing liquid silastic;
Notes rubber machine structural representation when Fig. 3 adopts ethylene propylene diene rubber to make for existing part 3 stress cones.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Embodiment one
As shown in Figure 1, the above power cable outdoor terminal of a kind of 500kV and 500kV, include sleeve pipe 1, insulating compound 2, stress cone 3 and wrapped material 10, also include outlet gold utensil 6, upper cover plate 7, lower shoe 8 and tail pipe 9, stress cone 3 is made up of electric conductor 3-1 and insulator 3-2, and described insulating compound 2 is an insulating oil.Stress cone 3 is contained in the sleeve pipe 1, is filled with insulating oil in the sleeve pipe 1, is wound with the wrapped material 10 that is connected with tail pipe 9 below the stress cone 3, and described stress cone 3 is made by liquid silastic.
Embodiment two
As shown in Figure 1, basic identical with embodiment one, different is that described insulating compound 2 is insulating gas, insulation gas filled in the sleeve pipe 1.
As shown in Figure 2; when the utility model stress cone 3 is made; adopt the two component glue-injection machines of liquid silastic; 100 tons of the glue-injection machine tonnages that needs; the injecting glue function is injected continuously; single can reach more than 300 liters; material with the liquid silicon rubber material of the two components of A component and B component in the manufacturing process is placed on respectively in two packing elements 24 of injector; to expect to annotate in the material pipe 27 by the syringe pump 26 on the injection frame 25; after material mixes through blender 28; be expelled in the die cavity in the mould 29, mould 29 has clamping mechanism 30 lockings, and last mould 29 bakings are made integral prefabricated insulating part 1.
The utility model is not limited to the foregoing description, and the technical scheme that all employings are equal to replacement or equivalence replacement formation all belongs to the claimed scope of the utility model.
Claims (3)
1. 500kV and the above power cable outdoor terminal of 500kV, include sleeve pipe (1), insulating compound (2), stress cone (3) and wrapped material (10), also include outlet gold utensil (6), upper cover plate (7), lower shoe (8) and tail pipe (9), stress cone (3) is contained in the sleeve pipe (1), it is characterized in that: described stress cone (3) is made by liquid silastic.
2. 500kV according to claim 1 and the above power cable outdoor terminal of 500kV is characterized in that: described stress cone (3) is made up of electric conductor (3-1) and insulator (3-2).
3. 500kV according to claim 1 and the above power cable outdoor terminal of 500kV is characterized in that: described insulating compound (2) is insulating oil or insulating gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202138511U CN201690193U (en) | 2010-06-03 | 2010-06-03 | 500 kV and more than 500 kV power cable outdoor terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202138511U CN201690193U (en) | 2010-06-03 | 2010-06-03 | 500 kV and more than 500 kV power cable outdoor terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201690193U true CN201690193U (en) | 2010-12-29 |
Family
ID=43378471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202138511U Expired - Lifetime CN201690193U (en) | 2010-06-03 | 2010-06-03 | 500 kV and more than 500 kV power cable outdoor terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201690193U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102270825A (en) * | 2010-06-03 | 2011-12-07 | 江苏安靠超高压电缆附件有限公司 | 500 kV or over 500 kV outdoor terminal of power cable |
| CN103490351A (en) * | 2013-09-05 | 2014-01-01 | 长园电力技术有限公司 | Manufacturing process of cross-linked polyethylene insulated cable main terminal molding stress control module |
| CN104535801A (en) * | 2015-01-12 | 2015-04-22 | 国网上海市电力公司 | Oil-gas mixed insulation device used for cable test terminal |
-
2010
- 2010-06-03 CN CN2010202138511U patent/CN201690193U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102270825A (en) * | 2010-06-03 | 2011-12-07 | 江苏安靠超高压电缆附件有限公司 | 500 kV or over 500 kV outdoor terminal of power cable |
| CN102270825B (en) * | 2010-06-03 | 2013-06-19 | 江苏安靠智能输电工程科技股份有限公司 | 500 kV or over 500 kV outdoor terminal of power cable |
| CN103490351A (en) * | 2013-09-05 | 2014-01-01 | 长园电力技术有限公司 | Manufacturing process of cross-linked polyethylene insulated cable main terminal molding stress control module |
| CN103490351B (en) * | 2013-09-05 | 2016-05-18 | 长园电力技术有限公司 | Cross-linked polyethylene insulated cable main body terminal mould note Stress Control module making technique |
| CN104535801A (en) * | 2015-01-12 | 2015-04-22 | 国网上海市电力公司 | Oil-gas mixed insulation device used for cable test terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU ANKURA SMART TRANSMISSION ENGINEERING TECH Free format text: FORMER NAME: JIANGSU ANKURA EHV CABLE ACCESSORIES CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 213333 Tianmu Lake Industrial Park, Liyang Economic Development Zone, Jiangsu, China Patentee after: Jiangsu Ankura Smart Transmission Engineering Technology Co., Ltd. Address before: 213333 Tianmu Lake Industrial Park, Liyang Economic Development Zone, Jiangsu, China Patentee before: Jiangsu Ankura EHV Cable Accessories Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101229 |