CN1419249A - VCV vertical U type cross-linking polyethylene insulation cable production line - Google Patents
VCV vertical U type cross-linking polyethylene insulation cable production line Download PDFInfo
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- CN1419249A CN1419249A CN 02153896 CN02153896A CN1419249A CN 1419249 A CN1419249 A CN 1419249A CN 02153896 CN02153896 CN 02153896 CN 02153896 A CN02153896 A CN 02153896A CN 1419249 A CN1419249 A CN 1419249A
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Abstract
The present invention discloses a VCV vertical cross-linkage polyethylene insulating cable production line having a U-shape layout, which includes metal conductor insualting cable core, take-up device, extruding device, tracting wheel, conductor-preheated equipment, low-temperature sulfuratino device, deflecting roller and stress relaxation device. The U-shape layout in the present invention can provide a rather large in-line stress relaxation space for insulating because of the longer cooling zone and eliminate all stresses after the insualtor passes through the stress relaxation device, which can guarantee the insualting quality reaching 750KV voltage grade and is resistant to insulation distortion.
Description
One, technical field
The present invention relates to a kind of novel crosslinked polyethylene (XLPE) insulated cable production line, relate to a kind of VCV vertical " U " type crosslinked polyethylene (XLPE) insulated cable production line specifically.
Two, background technology
The production line mode of high-pressure cross-linking cable all adopts the vertical production line of VCV both at home and abroad at present, but the layout of production line is " L " type at present.The layout type of " L " type production line has following shortcoming: (1) thermal treatment zone is short, it is high temperature vulcanized: because " L " type layout adopts high temperature fast cure, the cooling zone is shorter relatively simultaneously, thereby has influenced the effect of stress relaxation, and the cable product insulation quality is affected; (2) unstressed relaxation device; (3) easily produce insulation deformation: insulated wire cores is when vertically transferring level in " L " type production line, in order to keep insulated wire cores to occupy the center of cross-linking tube and not produce swing, must apply certain pressure and bigger horizontal pull, so just will produce very big pressure to insulation at the break place, and also not fully cooling of insulation this moment, just easily in insulation, produce internal stress, even cause the bulk deformation of insulation, greatly influence the quality of cable.
Three, summary of the invention
Purpose of the present invention is exactly in order to remedy the shortcoming and defect of " L " type cable production line layout, a kind of novel VCV vertical " U " type insulated cable production line is provided, five sections thermals treatment zone are changed into seven sections cryogenic vulcanization sections that dispose the conductor pre-heating device and installed ROL stress relaxation device additional, thereby produce the cable product of high insulation quality.
These and other purpose of the present invention will and be described by following detailed description and further embody and set forth.
The vertical cross-linked polyethylene insulated cable production line of VCV of the present invention, comprise metallic conductor, insulated wire cores, take-up, actinobacillus device and extruder, and traction wheel, conductor preheater, cryogenic vulcanization device, deflecting roller and stress relaxation device, wherein the vertical cross-linked polyethylene insulated cable of this VCV Production Line Configured is " U " type.
Further, in the vertical cross-linked polyethylene insulated cable production line of VCV of the present invention, actinobacillus device is connected with guide wheel by tension force pendulum, storage line device, and it is logical under crawling traction vertically upward by guide wheel, it is downward to traction wheel to cross the conductor closed conduct, coat crosslinked polyethylene through conductor preheater to extruder, vulcanize by the cryogenic vulcanization device then, cooling off by cooling device, the insulated wire that coats crosslinked polyethylene makes progress by the stress relaxation device by deflecting roller again, cooling then, to traction wheel downwards by deflecting roller to tension force pendulum and take-up.
In the vertical cross-linked polyethylene insulated cable production line of VCV of the present invention, adopt conductor preheater and the two-way mode of heating of heating tube, the thermal treatment zone is seven sections; Have the stress relaxation device that insulating material is carried out post bake on production line, the slack sections temperature is 200～300 ℃; Linear velocity is 0～10 meter in the pipe, and the cross section is 50～300 meters
2, temperature is 250～450 ℃, the pipe internal pressure is 5～15bar; Totally seven sections of cryogenic vulcanization sections, 5 meters every section, totally two sections in stress relaxation device, totally 12 meters.
In the present invention because the cooling head of district can make insulation have bigger online stress relaxation space, pass through the stress relaxation device again after, the stress that insulation heating back is produced all disappears, thereby has guaranteed the insulation quality of product.Its turning point of " U " type production line is a deflecting roller, do not have extra applied pressure, insulated wire cores is vertical state before and after turning to, and leans on the gravity of himself just can guarantee that insulated wire cores occupy crosslinked pipeline center and do not produce swing, the soft nature of transition has guaranteed the quality that insulate.And " L " type layout adopts high temperature fast cure, and the cooling zone is shorter relatively simultaneously, thereby has influenced the effect of stress relaxation, and the cable product insulation quality is affected.
Insulated wire cores is when vertically transferring level in " L " type production line, in order to keep insulated wire cores to occupy the center of cross-linking tube and not produce swing, must apply certain pressure and bigger horizontal pull, so just will produce very big pressure to insulation at the break place, and also not fully cooling of insulation this moment, just easily in insulation, produce internal stress, even cause the bulk deformation of insulation, greatly influence the quality of cable.And its turning point of " U " type production line is a deflecting roller, there is not extra applied pressure, insulated wire cores is vertical state before and after turning to, gravity by himself just can guarantee that insulated wire cores occupy crosslinked pipeline center and do not produce swing, the soft nature of transition has guaranteed the quality that insulate.
Because VCV vertical " L " type production line do not have the stress relaxation device, sulfuration section, cooling section are short, and insulation easily produces internal stress and deformation, and can't eliminate, and therefore the highlyest only can produce the 220V electricity reluctantly, press grade.And VCV of the present invention vertical " U " type production line has remedied the defective and the deficiency of " L " type production line fully, and the highest 750KV electric pressure of producing, and the insulation quality is splendid.
Insulation shield is vital for the protective effect of insulation, in " L " type production line, because the thermal treatment zone is short, it is five sections, and what have does not also dispose the conductor pre-heating device, require just must improve the temperature of the thermal treatment zone for reaching the degree of cross linking, the insulation shielding of burning so very easily in process of production, long-time running to cable causes great hidden danger of quality, and the application " U " type production line adopts conductor pre-heating device and the two-way mode of heating of heating tube, and the thermal treatment zone is seven sections, improved the efficiency of heating surface, prolonged heating time, so just can lower heating-up temperature satisfy the requirement of the degree of cross linking, thereby guaranteed that insulation shielding is not burnt; And the vulcanization of two-way heating, long-time low temperature makes the degree of cross linking uniformity of each several part in the cable insulation, the insulate heat mechanical stress that difficult generation is bigger.Simultaneously, this mode adopts low temperature to vulcanize at a slow speed, makes the good uniformity of insulation sulfuration, the state of cure (vulcanization) height, thus improved the thermal and mechanical stress of insulation and the even distribution of electric field, strengthened the mechanical performance and the electrical property of insulation, improved the quality of product.
In the insulation manufacture process, macromolecular material will be through heating → extrude moulding → high temperature vulcanized → steps such as cooling, and the temperature difference between each step is bigger, because factors such as heating, inhomogeneous cooling, will inevitably cause the inner stress raisers of insulation, this will inevitably influence its long-term useful life in high pressure, ultra-high voltage cross-linking cable; The more important thing is that insulate heat contraction problem has become a great problem of high-voltage cross-linking polythene insulated cable, because the thermal contraction of insulation, the accident that causes cable termination and transition joint to puncture happens occasionally, therefore, for avoiding the generation of this kind situation, ROL stress relaxation device has been installed in the present invention additional on this production line, promptly post bake is carried out in insulation, eliminate the internal stress of insulation, improve the thermal contraction of insulation.And " L " type production line can't have this function.
Four, description of drawings
Fig. 1 is the schematic diagram of the vertical cross-linked polyethylene insulated cable production line of VCV of the present invention.
In Fig. 1, symbol 1 is represented actinobacillus device, and symbol 2 is represented the tension force pendulum, symbol 3 representative storage line devices, symbol 4 is represented guide wheel, symbol 5 is represented crawling traction 1, and symbol 6 is represented cooling section, and symbol 7 is represented watch window, symbol 8 is represented the conductor closed conduct, symbol 9 is represented the conductor chip removing device, and symbol 10 is represented the misalignment measurement instrument apparatus, and sealing is gone up in symbol 11 representatives, symbol 12 is represented the SJ-175 extruder, symbol 13 is represented Insulation Material impurity supervising device, and symbol 14 is represented traction wheel, and symbol 15 is represented metallic conductor, symbol 16 is represented conductor preheater, symbol 17 is represented the SJ-60 extruder, and symbol 18 is represented the SJ-80 extruder, and symbol 19 is represented insulated wire cores, symbol 20 is represented the cryogenic vulcanization device, symbol 21 is represented traction wheel, and symbol 22 is represented jet case, symbol 23 representatives sealing down, symbol 24 is represented cooling section, symbol 25 is represented the stress relaxation device, and symbol 26 is represented guide wheel, and symbol 27 is represented take-up.
Five, embodiment
With reference to figure 1, the vertical cross-linked polyethylene insulated cable production line of VCV of the present invention, comprise metallic conductor 15, insulated wire cores 19, take-up 27, actinobacillus device 1 and extruder 12,17,18, and traction wheel 21, conductor preheater 16, cryogenic vulcanization device 20, deflecting roller 26 and stress relaxation device 25, wherein the vertical cross-linked polyethylene insulated cable of this VCV Production Line Configured is " U " type.
Further, in the vertical cross-linked polyethylene insulated cable production line of VCV of the present invention, actinobacillus device 1 is by tension force pendulum 2, storage line device 3 is connected with guide wheel 4, and it is downward to traction wheel 14 to pass through conductor closed conduct 85 times in crawling traction vertically upward by guide wheel 4 change directions, in conductor closed conduct 8, also be placed with conductor chip removing device 9, process conductor preheater 16 is to extruder 12,17,18 coat crosslinked polyethylene, on extruder 12, also be equipped with Insulation Material impurity supervising device, insulated wire cores 19 is by last sealing 11 and misalignment measurement instrument apparatus 10, then by 20 sulfurations of cryogenic vulcanization device, again by cooling device 6 coolings, the insulated wire that coats crosslinked polyethylene makes progress by stress relaxation device 25 by deflecting roller 26 again, cool off the lower seal amenorrhoea then and cross jet case 22, to traction wheel 21 downwards by deflecting rollers 26 to tension force pendulum 2 and take-up 27.
In the vertical cross-linked polyethylene insulated cable production line of VCV of the present invention, adopt conductor preheater and the two-way mode of heating of heating tube, the thermal treatment zone is seven sections; Have the stress relaxation device that insulating material is carried out post bake on production line, the slack sections temperature is 200～300 ℃; Linear velocity is 0～10 meter in the pipe, and the cross section is 50～300 meters
2, temperature is 250～450 ℃, the pipe internal pressure is 5～15bar; Totally seven sections of cryogenic vulcanization sections, 5 meters every section, totally two sections in stress relaxation device, totally 12 meters.
The 220kV high-pressure cross-linking cable that adopts this invention to produce, through the monitoring of electric equipment quality inspection test center of the Ministry of Industry of State Grid, every performance index all meet the requirement of product standard, have filled up domestic blank.
Claims (7)
1, the vertical cross-linked polyethylene insulated cable production line of a kind of VCV, comprise metallic conductor, insulated wire cores, take-up, actinobacillus device and extruder, and traction wheel, conductor preheater, cryogenic vulcanization device, deflecting roller and stress relaxation device, it is characterized in that the vertical cross-linked polyethylene insulated cable of this VCV Production Line Configured is " U " type.
2, the vertical cross-linked polyethylene insulated cable production line of VCV as claimed in claim 1, it is characterized in that actinobacillus device puts by tension force, storage line device is connected with guide wheel, and it is downward by the conductor closed conduct under crawling traction vertically upward to traction wheel by guide wheel, coat crosslinked polyethylene through conductor preheater to extruder, vulcanize by the cryogenic vulcanization device then, cooling off by cooling device, the insulated wire that coats crosslinked polyethylene makes progress by the stress relaxation device by deflecting roller again, cooling then, to traction wheel downwards by deflecting roller to tension force pendulum and take-up.
3, the vertical cross-linked polyethylene insulated cable production line of VCV as claimed in claim 1 is characterized in that adopting the two-way mode of heating of conductor preheater and heating tube, and the thermal treatment zone is seven sections.
4, the vertical cross-linked polyethylene insulated cable production line of VCV as claimed in claim 1 is characterized in that having on production line the stress relaxation device that insulating material is carried out post bake, and the slack sections temperature is 200～300 ℃.
5, the vertical cross-linked polyethylene insulated cable production line of VCV as claimed in claim 1, linear velocity is 0～10 meter in it is characterized in that managing, the cross section is 50～300 meters
2, temperature is 250～450 ℃, the pipe internal pressure is 5～15bar.
6, the vertical cross-linked polyethylene insulated cable production line of VCV as claimed in claim 1 is characterized in that totally seven sections of cryogenic vulcanization sections, 5 meters every section.
7, the vertical cross-linked polyethylene insulated cable production line of VCV as claimed in claim 1 is characterized in that totally two sections in stress relaxation device, totally 12 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02153896 CN1293577C (en) | 2002-12-06 | 2002-12-06 | VCV vertical U type cross-linking polyethylene insulation cable production line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02153896 CN1293577C (en) | 2002-12-06 | 2002-12-06 | VCV vertical U type cross-linking polyethylene insulation cable production line |
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| CN1419249A true CN1419249A (en) | 2003-05-21 |
| CN1293577C CN1293577C (en) | 2007-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 02153896 Expired - Fee Related CN1293577C (en) | 2002-12-06 | 2002-12-06 | VCV vertical U type cross-linking polyethylene insulation cable production line |
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| CN (1) | CN1293577C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013616B (en) * | 2006-01-31 | 2011-05-11 | Ls电线有限公司 | Aluminium alloy cable, manufacturing method thereof and overhead transmission cable using same |
| CN102290151A (en) * | 2011-09-02 | 2011-12-21 | 王向超 | High-voltage cable cross-linking device |
| CN103903815A (en) * | 2012-12-28 | 2014-07-02 | 青岛汉缆股份有限公司 | Apparatus and manufacturing method for manufacturing crosslinking PE cable insulation core |
| CN105597105A (en) * | 2014-11-19 | 2016-05-25 | 连云港润众制药有限公司 | Method for preparing ferumoxytol |
| CN105895271A (en) * | 2015-02-18 | 2016-08-24 | 梅勒菲尔股份有限公司 | Method and arrangement for cross-linking or vulcanizing an elongate element |
| CN110189866A (en) * | 2019-06-06 | 2019-08-30 | 青岛泰克博思电工技术有限公司 | Vertical tandem production system for fireproof cable |
| CN112309647A (en) * | 2019-07-26 | 2021-02-02 | 无锡鑫宏业特塑线缆有限公司 | Vertical production line of new forms of energy electric motor car cable conductor |
| CN113506656A (en) * | 2021-09-09 | 2021-10-15 | 南通方正机电制造有限公司 | Insulation production cross-linking equipment for power cable manufacturing |
| CN114792577A (en) * | 2021-09-24 | 2022-07-26 | 特变电工山东鲁能泰山电缆有限公司 | Insulation system and high voltage direct current cable |
-
2002
- 2002-12-06 CN CN 02153896 patent/CN1293577C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013616B (en) * | 2006-01-31 | 2011-05-11 | Ls电线有限公司 | Aluminium alloy cable, manufacturing method thereof and overhead transmission cable using same |
| CN102290151A (en) * | 2011-09-02 | 2011-12-21 | 王向超 | High-voltage cable cross-linking device |
| CN102290151B (en) * | 2011-09-02 | 2013-04-17 | 王向超 | High-voltage cable cross-linking device |
| CN103903815A (en) * | 2012-12-28 | 2014-07-02 | 青岛汉缆股份有限公司 | Apparatus and manufacturing method for manufacturing crosslinking PE cable insulation core |
| CN105597105B (en) * | 2014-11-19 | 2020-03-10 | 连云港润众制药有限公司 | Preparation method of ferumottol |
| CN105597105A (en) * | 2014-11-19 | 2016-05-25 | 连云港润众制药有限公司 | Method for preparing ferumoxytol |
| CN105895271A (en) * | 2015-02-18 | 2016-08-24 | 梅勒菲尔股份有限公司 | Method and arrangement for cross-linking or vulcanizing an elongate element |
| CN105895271B (en) * | 2015-02-18 | 2019-06-04 | 梅勒菲尔股份有限公司 | Method and apparatus for being crosslinked or vulcanizing elongated member |
| CN110189866A (en) * | 2019-06-06 | 2019-08-30 | 青岛泰克博思电工技术有限公司 | Vertical tandem production system for fireproof cable |
| CN110189866B (en) * | 2019-06-06 | 2024-05-03 | 青岛泰克博思电工技术有限公司 | Vertical serial production system for fireproof cable |
| CN112309647A (en) * | 2019-07-26 | 2021-02-02 | 无锡鑫宏业特塑线缆有限公司 | Vertical production line of new forms of energy electric motor car cable conductor |
| CN112309647B (en) * | 2019-07-26 | 2022-05-06 | 无锡鑫宏业特塑线缆有限公司 | Vertical production line of new forms of energy electric motor car cable conductor |
| CN113506656A (en) * | 2021-09-09 | 2021-10-15 | 南通方正机电制造有限公司 | Insulation production cross-linking equipment for power cable manufacturing |
| CN113506656B (en) * | 2021-09-09 | 2021-11-16 | 南通方正机电制造有限公司 | Insulation production cross-linking equipment for power cable manufacturing |
| CN114792577A (en) * | 2021-09-24 | 2022-07-26 | 特变电工山东鲁能泰山电缆有限公司 | Insulation system and high voltage direct current cable |
| CN114792577B (en) * | 2021-09-24 | 2023-05-30 | 特变电工山东鲁能泰山电缆有限公司 | Insulation structure and high-voltage direct-current cable |
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| CN1293577C (en) | 2007-01-03 |
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