CN2935397Y - Apparatus for eliminating insulation droop in cable cross-linking process - Google Patents
Apparatus for eliminating insulation droop in cable cross-linking process Download PDFInfo
- Publication number
- CN2935397Y CN2935397Y CN 200620029254 CN200620029254U CN2935397Y CN 2935397 Y CN2935397 Y CN 2935397Y CN 200620029254 CN200620029254 CN 200620029254 CN 200620029254 U CN200620029254 U CN 200620029254U CN 2935397 Y CN2935397 Y CN 2935397Y
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- nitrogen
- heat exchanger
- communicated
- cable
- voltage
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Abstract
A device for eliminates insulation sagging of cable during the process of cross-linking consists of a three-layer co-extrusion nose, an upper closure and a hanging chain production line composed at least one section of heating pipe as well as a nitrogen heat exchanger, the device is characterized in that a nitrogen eduction tube is connected to the end of the first section heating pipe, the nitrogen eduction tube is connected with the input end of the nitrogen heat exchanger, the cold nitrogen output end of the nitrogen heat exchanger is connected with the cold nitrogen output pipe, the cool nitrogen output pipe is connected with the end of three-layer co-extrusion nose of the upper closure through a fan. A nitrogen eduction tube of low-voltage resistant cable can also be connected at the end of the upper closure. The eduction tube of the low-voltage resistant cable is connected with the input end of the nitrogen heat exchanger. The device is simple in structure, easy for implementation. Two nitrogen circulation pipes arrangement can ensure to produce medium and low-voltage, high -voltage and ultra-high voltage cables with optimum roundness and best concentricity, which can effectively improve the voltage withstanding level produced by the hanging chain production line.
Description
Technical field
The utility model relates to eliminates the sagging device of insulation in the cable cross-linking process, belongs to the special equipment of making cable.
Background technology
When present catenary crosslinking cable production line is produced cable, when insulation enters crosslinked pipeline,, cause insulating barrier not rounding and off-centre because the effect of gravity can produce sagging.The cable insulation that voltage withstand class is high more is thick more, and insulating barrier not rounding and eccentricity issues is serious more, thereby has limited the voltage withstand class of catenary suspension type continuous vulcanization cable that production line is produced.Upright tower production line can satisfy complete rounding and concentric quality requirement owing to be not subjected to gravity effect, produces the cable of very high voltage withstand class, but upright tower building cost is very expensive, makes the cost of high pressure, extra-high-tension cable high.
Summary of the invention
The purpose of this utility model is at above-mentioned deficiency, and a kind of solution insulating barrier not rounding and eccentricity issues are provided, and improves the voltage withstand class of the cable of producing, the sagging device of insulation in the elimination cable cross-linking process of reduction high pressure, extra-high-tension cable manufacturing cost.
The purpose of this utility model is achieved in that
The sagging device of insulation in this elimination cable cross-linking process, catenary suspension type continuous vulcanization production line and the nitrogen heat exchanger be made up of three-layer co-extruding machine head, last sealer, at least one section heating tube etc. constitute, be characterized in being communicated with the nitrogen extraction tube at the end of first section heating tube, the nitrogen extraction tube is communicated with the nitrogen heat exchanger input through valve, the cold nitrogen output of nitrogen heat exchanger is communicated with cold nitrogen efferent duct, and cold nitrogen efferent duct is communicated with the three-layer co-extruding machine head end of last sealer through blower fan and valve.
If produce the lower insulated cable of requirement of withstand voltage, also can be communicated with low withstand voltage cable nitrogen extraction tube at the end of last sealer, low withstand voltage cable is communicated with the nitrogen heat exchanger input through valve with the nitrogen extraction tube.
In the catenary suspension type continuous vulcanization production line, heat insulation evenly is coated on the insulating barrier that conductor forms three-decker on every side by three-layer co-extruding machine head, at this moment because insulation does not form the crosslinked heat fusing state that still is in, ratio of viscosities is low to be easy to flow, especially between last sealer and first section heating tube, the sagging pear shape of the easiest formation of insulation, withstand voltage high cable insulation is thick more, and is sagging obvious more.
Operation principle of the present utility model is that the nitrogen of working in first section heating tube is drawn, send into the nitrogen heat exchanger cooling, again cooled cold nitrogen is sent into the three-layer co-extruding machine head end of sealer, cold nitrogen is circulated between three-layer co-extruding machine head end to the first section heating tube of last sealer, surface of insulating layer is cooled off, make surface of insulating layer form the lower cured layer of one deck temperature, this cured layer produces contraction in cooling procedure, girth reduces, form an active force entad, make the insulation that is in molten condition in the sagging process revert to non-hang.Because insulating material has been in colder solid state, can not produce again and flow and cause insulating sagging, insulating barrier just can remain a kind of rounding preferably and concentric in follow-up cross-linking process like this, produces best roundness and the high pressure of best concentricity, the purpose of extra-high-tension cable thereby reach.For the lower cable of requirement of withstand voltage, can only partly carry out cold nitrogen circulation to last sealer, reach the purpose of the mesolow cable of producing best roundness and best concentricity.
This apparatus structure is simple, implements easily.The setting of two nitrogen circulation pipelines can guarantee to produce best roundness and preferably mesolow, high pressure, the extra-high-tension cable of concentricity, effectively improves the voltage withstand class that the catenary suspension type continuous vulcanization production line can be produced cable.
Description of drawings
Accompanying drawing is the structural representation of a kind of embodiment of the utility model.
Among the figure: 1 three-layer co-extruding machine head, sealer on 2,3 first sections heating tubes, 4 second sections heating tubes, 5 nitrogen heat exchangers, 6 blower fans, 7 nitrogen extraction tubes, 8 cold nitrogen efferent ducts, 9 low withstand voltage cable nitrogen extraction tubes, 10,11,12 valves.
Embodiment
Below in conjunction with drawings and Examples the utility model being done a step describes.
With reference to accompanying drawing, the sagging device of insulation in this elimination cable cross-linking process is by three-layer co-extruding machine head 1, go up catenary suspension type continuous vulcanization production line and the nitrogen heat exchanger 5 that sealer 2, first section heating tube 3, second section heating tube 4 etc. form and constitute.End at first section heating tube is communicated with nitrogen extraction tube 7, the nitrogen extraction tube is communicated with nitrogen heat exchanger input a through valve 10, the cold nitrogen output b of nitrogen heat exchanger is communicated with cold nitrogen efferent duct 8, and cold nitrogen efferent duct is communicated with the three-layer co-extruding machine head end of last sealer through blower fan 6 and valve 12.End at last sealer is communicated with low withstand voltage cable with nitrogen extraction tube 9, hangs down withstand voltage cable and is communicated with the nitrogen heat exchanger input through valve 11 with the nitrogen extraction tube.
During work,, open valve 10 and valve 12, valve-off 11, cold nitrogen is circulated between last sealer and first section heating tube, surface of insulating layer is cooled off if produce high pressure, extra-high-tension cable.If produce the mesolow cable, open valve 11 and valve 12, valve-off 10, only to the cooling that partly circulates of last sealer.
Claims (2)
1, a kind ofly eliminates the sagging device of insulation in the cable cross-linking process, by three-layer co-extruding machine head, go up catenary suspension type continuous vulcanization production line and the nitrogen heat exchanger that sealer, at least one section heating tube form and constitute, it is characterized in that being communicated with the nitrogen extraction tube at the end of first section heating tube, the nitrogen extraction tube is communicated with the nitrogen heat exchanger input through valve, the cold nitrogen output of nitrogen heat exchanger is communicated with cold nitrogen efferent duct, and cold nitrogen efferent duct is communicated with the three-layer co-extruding machine head end of last sealer through blower fan and valve.
2, the sagging device of insulation in the elimination cable cross-linking process according to claim 1, it is characterized in that being communicated with low withstand voltage cable nitrogen extraction tube at the end of last sealer, low withstand voltage cable is communicated with the nitrogen heat exchanger input through valve with the nitrogen extraction tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620029254 CN2935397Y (en) | 2006-08-23 | 2006-08-23 | Apparatus for eliminating insulation droop in cable cross-linking process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620029254 CN2935397Y (en) | 2006-08-23 | 2006-08-23 | Apparatus for eliminating insulation droop in cable cross-linking process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2935397Y true CN2935397Y (en) | 2007-08-15 |
Family
ID=38352083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620029254 Expired - Fee Related CN2935397Y (en) | 2006-08-23 | 2006-08-23 | Apparatus for eliminating insulation droop in cable cross-linking process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2935397Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290151A (en) * | 2011-09-02 | 2011-12-21 | 王向超 | High-voltage cable cross-linking device |
| CN106298067A (en) * | 2016-08-23 | 2017-01-04 | 中天昱品科技有限公司 | A kind of crosslinking line nitrogen circulating system |
| CN110379564A (en) * | 2019-07-23 | 2019-10-25 | 华力通线缆股份有限公司 | A kind of high voltage cable heating pipeline and high voltage cable production line |
| CN112133495A (en) * | 2020-09-03 | 2020-12-25 | 重庆泰山电缆有限公司 | Catenary-chain-type cross-linking production line nitrogen cooling system special for cable production |
| CN115458235B (en) * | 2022-10-18 | 2024-04-26 | 江苏亨通高压海缆有限公司 | Cooling section of catenary crosslinking production line and cooling method thereof |
-
2006
- 2006-08-23 CN CN 200620029254 patent/CN2935397Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106298067A (en) * | 2016-08-23 | 2017-01-04 | 中天昱品科技有限公司 | A kind of crosslinking line nitrogen circulating system |
| CN110379564A (en) * | 2019-07-23 | 2019-10-25 | 华力通线缆股份有限公司 | A kind of high voltage cable heating pipeline and high voltage cable production line |
| CN110379564B (en) * | 2019-07-23 | 2024-03-26 | 华力通线缆股份有限公司 | High-voltage cable heating pipeline and high-voltage cable production line |
| CN112133495A (en) * | 2020-09-03 | 2020-12-25 | 重庆泰山电缆有限公司 | Catenary-chain-type cross-linking production line nitrogen cooling system special for cable production |
| CN115458235B (en) * | 2022-10-18 | 2024-04-26 | 江苏亨通高压海缆有限公司 | Cooling section of catenary crosslinking production line and cooling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Xiao Yuzhi Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070815 Termination date: 20100823 |