CN210123674U - Cable aluminum sheath continuous cladding core wire scald preventing system - Google Patents
Cable aluminum sheath continuous cladding core wire scald preventing system Download PDFInfo
- Publication number
- CN210123674U CN210123674U CN201921303903.1U CN201921303903U CN210123674U CN 210123674 U CN210123674 U CN 210123674U CN 201921303903 U CN201921303903 U CN 201921303903U CN 210123674 U CN210123674 U CN 210123674U
- Authority
- CN
- China
- Prior art keywords
- water
- cooling
- core wire
- pipe
- heat insulation
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Extrusion Of Metal (AREA)
Abstract
A cable aluminum sheath continuous cladding core wire scald preventing system belongs to the field of equipment manufacturing and cable manufacturing. The cooling system comprises a cooling water circulation channel and a gas channel, and the heat insulation sleeve is connected with the cooling system through threads; the assembly of the cooling system and the heat insulation sleeve is inserted into the central hole of the die cavity and sleeved outside the core wire to isolate the core wire from the male die, and the outer side of the male die is sleeved with an aluminum pipe; the water spray cooling device is arranged on the outer side of the aluminum pipe and is positioned at the outlet of the die; the water spray cooling device is provided with at least one row of water outlet holes. The utility model adopts the heat insulation sleeve with the heat insulation coating on the outer surface to isolate the core wire from the male die, and the cooling system is used for cooling the heat insulation sleeve, so as to ensure that the temperature of the heat insulation sleeve is below 175 ℃; a channel is opened in the cooling system, compressed air is introduced to cool the core wire and the heat insulation sleeve during normal work, and liquid nitrogen is introduced to cool the mold during long-time emergency shutdown to protect the core wire; the water spray cooling device quickly cools the aluminum pipe of the extrusion die opening through the water curtain, and scalding when the core wire is in contact with the aluminum pipe is prevented.
Description
Technical Field
The utility model belongs to equip and make and cable manufacturing field, in particular to cable aluminum sheath continuous cladding heart yearn scald preventing system.
Background
The continuous coating process is used for producing an aluminum sheath of an ultrahigh-voltage cable, and is a new process developed in recent years, wherein the coating process comprises the steps of enabling an aluminum alloy blank 11 to enter a die cavity 13 from a corresponding channel under the driving of an extrusion wheel 12, welding the aluminum alloy blank at high temperature and high pressure, extruding an aluminum pipe 15 from a circular seam formed by a male die and a female die, penetrating a cable core wire 14 into the aluminum pipe 15 through a central hole of the die cavity, and embossing the aluminum pipe to form the corrugated aluminum sheath. In the process, the whole die cavity is in a high-temperature state (500-550 ℃), the extruded aluminum tube is also in a high-temperature state, and if protective measures are not taken, the cable core wire is burnt due to high-temperature radiation or contact with the male die and the aluminum tube.
The U.S. Pat. No. 5,971,319 provides a method for pre-cooling a core wire before the core wire enters an inner hole of a die cavity, wherein a cooling medium mainly adopts liquid nitrogen, and the method has better cost performance for coating small-specification cable aluminum sheaths such as coaxial cables with the diameter of more than ten millimeters, but has overlarge liquid nitrogen consumption and high production cost for producing ultrahigh-voltage cable aluminum sheaths with the diameter of 60-180 millimeters, so that enterprises cannot accept the method. Although some protective measures are also taken in the existing continuous coating process of the aluminum sheath of the ultrahigh-voltage cable, the problem that the cable core water-blocking tape is scalded and even the polyethylene insulation is scalded still exists when the production line is in a breakdown shutdown state (5-8 minutes), the water-blocking tape is rewound and even the cable is scrapped occasionally, the production efficiency of enterprises is greatly reduced, and the production cost of the enterprises is increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model discloses a continuous cladding cable heart yearn scald preventing system. In order to achieve the above purpose, the utility model adopts the following technical scheme: a cable aluminum sheath continuous coated core wire scald preventing system is characterized by comprising a cooling system, a heat insulation sleeve and a water spray cooling device, wherein the cable core wire is protected by adopting a water cooling and air cooling combined mode; the cooling system comprises a cooling water circulation channel and a gas channel, and the heat insulation sleeve is connected with the cooling system through threads; the assembly of the cooling system and the heat insulation sleeve is inserted into the central hole of the die cavity and sleeved outside the core wire to isolate the core wire from the male die, and the outer side of the male die is sleeved with an aluminum pipe; the water spray cooling device is arranged on the outer side of the aluminum pipe and is positioned at the outlet of the die; the water spray cooling device is provided with at least one row of water outlet holes.
The cooling system is a long cylindrical part and comprises a pipe distribution flange plate, a first positioning block water spraying stainless steel pipe, an interlayer sleeve, a cooling sleeve and a connecting pipe, wherein the first stainless steel pipe is connected with a cooling medium circulating system formed by the interlayer sleeve and the cooling sleeve, one end of the stainless steel pipe is connected with the pipe distribution flange plate, one end of the connecting pipe is connected with the pipe distribution flange plate, the other end of the connecting pipe is connected with the interlayer sleeve, the connecting pipe is connected with the positioning block and comprises a water cooling circulation channel and an air cooling channel, compressed air is introduced into the air cooling channel during normal work, and liquid.
The cooling sleeve comprises a water circulation cavity, an open channel and internal threads, the annular water circulation cavity is wrapped on the outer sides of the internal threads, a water inlet pipe of the water circulation cavity is positioned at the bottom, and a water return pipe is positioned at the top; at least two groups of air cooling channels are formed by the stainless steel tube II and the open channels and are symmetrically distributed.
The heat insulation sleeve is a tubular part, the external thread is tightly matched with the internal thread, the outer surface is sprayed with a thermal barrier coating, and the outlet direction of the inner surface is provided with a step.
The interlayer sleeve consists of an outer sleeve and an inner sleeve, the stainless steel pipe is positioned between the outer sleeve and the inner sleeve, and the outer surface of the outer sleeve is coated with a layer of heat insulation material.
The water spray cooling device is an interlayer revolving body consisting of an outer body and an inner body, a small opening end is sealed, a large opening end is connected with a water supply system, the outer body is of a closed structure, at least one water hole is annularly distributed in the inner body, cooling water enters from the interlayer and is discharged from the water hole to form a water curtain, the included angles between the axes of the same water hole and the revolving body are the same, the included angles are intersected at the same point, and the included angle is 15-25 degrees.
The clearance C1 between the heat insulation sleeve and the core wire is = 1-2 mm, the clearance C2 between the heat insulation sleeve and the inner hole of the male die is = 0.5-2 mm, and the distance L of the heat insulation sleeve extending out of the end face of the male die is = 0-20 mm; the clearance C3=3 ~ 5mm between the apopore of water spray cooling device and the aluminum pipe, and the jet water post and aluminum pipe contained angle delta =15 ~ 25.
The structural design of each component of the utility model is ingenious, the core wire and the male die are isolated by the heat insulation sleeve with the heat insulation coating on the outer surface, and the heat insulation sleeve is cooled by the cooling system, so as to ensure that the temperature is below 175 ℃; meanwhile, an open channel is arranged in the cooling system, compressed air can be introduced to cool the core wire and the heat insulation sleeve during normal work, and liquid nitrogen can be introduced to cool the mold during long-time emergency shutdown to protect the core wire; the die orifice cooling device cools the aluminum pipe of the extrusion die orifice rapidly through the water curtain, prevents the core wire from being scalded when contacting with the aluminum pipe, and is particularly suitable for producing the ultrahigh-voltage cable aluminum sheath with the diameter of 60-180 mm.
Drawings
Fig. 1 is a schematic diagram of continuous coating of an aluminum sheath of a cable.
Fig. 2 is a schematic view of the assembly relationship of the present invention.
Fig. 3 is a diagram of the distances between the main components in fig. 2.
Fig. 4 is a schematic structural diagram of the cooling system of the present invention.
Fig. 5 is a schematic structural view of the cooling medium circulation system of the present invention.
Fig. 6 is a partial sectional view of the cooling medium circulation system according to the present invention.
Fig. 7 is a partial sectional view of the cooling medium circulation system of the present invention.
Fig. 8 is a schematic view of the structure of the heat insulation jacket of the present invention.
Fig. 9 is a schematic structural view of the water spray cooling device of the present invention.
In the figure: the aluminum alloy extrusion die comprises an aluminum alloy blank 11, an extrusion wheel 12, a die cavity 13, a core wire 14, an aluminum pipe 15, a male die 16, a cooling system 21, a heat insulation sleeve 22, external threads 221, an outer surface 222, a step 223, a water spray cooling device 23, an outer body 231, an inner body 232, a water hole 233, an interlayer 234, a flange 25, a positioning block 26, a stainless steel pipe I27, an interlayer sleeve 28, an outer sleeve 281, an inner sleeve 282, a water inlet pipe 283, a water return pipe 284, a stainless steel pipe II 285, a cooling sleeve 29, a connecting pipe 30, a water circulation cavity 291, an open channel 292, an internal thread 293, a gap C1 between the heat insulation sleeve and the core wire, a gap C2 between the heat insulation sleeve and an inner hole of the male die, a gap C3 between a water outlet of the water spray cooling device.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the specific embodiments.
Example 1
As shown in fig. 2, the scald preventing system for the continuous coated core wire of the aluminum sheath of the cable comprises a cooling system 21, a heat insulation sleeve 22 and a water spray cooling device 23, wherein the core wire of the cable is protected by combining water cooling and air cooling; the cooling system 21 comprises a cooling water circulation channel and a gas channel, and the heat insulation sleeve 22 is connected with the cooling system 21 through threads; the combination body of the cooling system 21 and the heat insulation sleeve 22 is inserted into the central hole of the die cavity and sleeved outside the core wire 14 to isolate the core wire 14 from the male die 16, and the aluminum pipe 15 is sleeved outside the male die 16; the water spray cooling device 23 is arranged outside the aluminum pipe 15 and positioned at the outlet of the die; the water spray cooling device 23 has at least one row of water outlet holes.
As shown in fig. 4-7, the cooling system 21 is a long cylindrical part, and is composed of a pipe flange 25, a positioning block 26, a first stainless steel pipe 27 for spraying water, an interlayer sleeve 28, a cooling jacket 29 and a connecting pipe 30, wherein the first stainless steel pipe 27 is connected with a cooling medium circulation system composed of the interlayer sleeve 28 and the cooling jacket 29, one end of the first stainless steel pipe 27 is connected with the pipe flange 25, one end of the connecting pipe 30 is connected with the pipe flange 25, the other end of the connecting pipe 30 is connected with the interlayer sleeve 28, the connecting pipe 30 is connected with the positioning block 26 and comprises a water cooling circulation channel and a gas cooling channel, compressed air is introduced into the gas cooling channel during normal operation.
The cooling jacket 29 comprises a water circulation cavity 291, an open channel 292 and internal threads 293, the annular water circulation cavity 291 is wrapped on the outer side of the internal threads 293, a water inlet pipe 283 of the water circulation cavity 291 is positioned at the bottom, and a water return pipe 284 is positioned at the top; at least two groups of air cooling channels are formed by the stainless steel tube II 285 and the open channel 292 and are distributed symmetrically.
The heat insulation sleeve 22 is a tubular part, the external thread 221 is tightly matched with the internal thread 293, the external surface 221 is sprayed with a thermal barrier coating, and the outlet direction of the internal surface is provided with a step 223.
As shown in fig. 8, the jacket 28 is composed of an outer jacket 281 and an inner jacket 282, between which the first stainless steel pipe 27 is located, and the outer surface of the outer jacket 281 is covered with a layer of heat insulating material.
As shown in fig. 9, the water spray cooling device 23 is a sandwich layer revolving body composed of an outer body 231 and an inner body 232, the small end is sealed, the large end is connected with a water supply system, the outer body 231 is of a closed structure, at least one water hole 233 is annularly distributed on the inner body 232, cooling water enters from the sandwich layer 234 and is discharged from the water hole 233 to form a water curtain, the included angle between the axis of the same water hole and the axis of the revolving body is the same, and the included angle is between 15 ° and 25 °.
As shown in fig. 3, in the present embodiment, the clearance C1=1.5mm between the heat insulating jacket 22 and the core wire 14, the clearance C2=1mm between the heat insulating jacket 22 and the inner hole of the punch 16, and the distance L =10mm by which the heat insulating jacket 22 protrudes from the end face of the punch 16; the clearance C3=4mm between the water outlet holes of the water spray cooling device 23 and the aluminum pipe 15, and the included angle delta =20 degrees between the water spray column and the aluminum pipe 15.
When the device works, firstly, the preheated die cavity 13 is arranged on an extruder and is locked and fixed, the circulating water of the cooling system 21 is started, the combination of the cooling system 21 and the heat insulation sleeve 22 is inserted into the central hole of the die cavity, and the gap between the heat insulation sleeve 22 and the inner hole of the male die 16 is detected; starting a continuous extruder to enable an extrusion wheel 12 to rotate, feeding an aluminum alloy blank 11, starting a water spray cooling device after an aluminum pipe 15 is extruded, and pushing the aluminum pipe to the position of a die outlet after the aluminum pipe is led in; after the aluminum tube 15 is extruded stably, the cable core 14 is inserted into the inner hole of the cooling system 21 into the aluminum tube 15, and the air cooling system is turned on.
Example 2
In this embodiment, the structure and connection relationship of each part of the cable aluminum sheath continuous covered core wire scald preventing system are the same as those in embodiment 1, and the differences are as follows: a clearance C1=1mm between the heat insulating jacket 22 and the core wire 14, a clearance C2=0.5mm between the heat insulating jacket 22 and the inner hole of the male die 16, and a distance L =0mm that the heat insulating jacket 22 extends beyond the end face of the male die 16; the clearance C3=3mm between the water outlet holes of the water spray cooling device 23 and the aluminum pipe 15, and the included angle delta =15 degrees between the water spray column and the aluminum pipe 15.
Example 3
In this embodiment, the structure and connection relationship of each part of the cable aluminum sheath continuous covered core wire scald preventing system are the same as those in embodiment 1, and the differences are as follows: a clearance C1=2mm between the heat insulating jacket 22 and the core wire 14, a clearance C2=2mm between the heat insulating jacket 22 and the inner hole of the punch 16, and a distance L =20 mm by which the heat insulating jacket 22 protrudes from the end face of the punch 16; the clearance C3=5mm between the water outlet holes of the water spray cooling device 23 and the aluminum pipe 15, and the included angle delta =25 degrees between the water spray column and the aluminum pipe 15.
Claims (7)
1. A cable aluminum sheath continuous coated core wire scald preventing system is characterized by comprising a cooling system (21), a heat insulation sleeve (22) and a water spray cooling device (23), wherein the cable core wire is protected by adopting a water cooling and air cooling combined mode; the cooling system (21) comprises a cooling water circulation channel and a gas channel, and the heat insulation sleeve (22) is connected with the cooling system (21) through threads; the assembly of the cooling system (21) and the heat insulation sleeve (22) is inserted into the central hole of the die cavity and sleeved outside the core wire (14) to isolate the core wire (14) from the male die (16), and the aluminum pipe (15) is sleeved outside the male die (16); the water spray cooling device (23) is arranged on the outer side of the aluminum pipe (15) and is positioned at the outlet of the die; the water spray cooling device (23) is provided with at least one row of water outlet holes.
2. The scald preventing system for the continuous coated core wire of the aluminum sheath of the cable as claimed in claim 1, wherein the cooling system (21) is a long cylindrical part and is composed of a first pipe flange (25), a first positioning block (26), a first stainless steel pipe (27) for spraying water, an interlayer sleeve (28), a cooling sleeve (29) and a connecting pipe (30), the first stainless steel pipe (27) is connected with a cooling medium circulating system composed of the interlayer sleeve (28) and the cooling sleeve (29), one end of the first stainless steel pipe (27) is connected with the pipe flange (25), one end of the connecting pipe (30) is connected with the pipe flange (25), the other end of the connecting pipe (30) is connected with the interlayer sleeve (28), the connecting pipe (30) is connected with the positioning block (26) and comprises a water cooling circulation channel and an air cooling channel, compressed air is introduced into the air cooling channel during normal.
3. The cable aluminum sheath continuous coated core wire scald preventing system as claimed in claim 2, wherein said cooling jacket (29) comprises a water circulation cavity (291), an open channel (292) and an internal thread (293), the annular water circulation cavity (291) is wrapped outside the internal thread (293), a water inlet pipe (283) of the water circulation cavity (291) is located at the bottom, and a water return pipe (284) is located at the top; at least two groups of air cooling channels are formed by the stainless steel tube II (285) and the open channel (292) and are symmetrically distributed.
4. The system as claimed in claim 3, wherein the thermal insulation sleeve (22) is a tubular component, the external thread (221) is tightly fitted with the internal thread (293), the external surface (222) is coated with thermal barrier coating, and the internal surface has a step (223) in the outlet direction.
5. The system of claim 2, wherein the jacket (28) comprises an outer jacket (281) and an inner jacket (282) with the first stainless steel tube (27) therebetween, and the outer surface of the outer jacket (281) is covered with a layer of heat insulating material.
6. The cable aluminum sheath continuous coated core wire scald preventing system as claimed in claim 1, wherein said water spray cooling device (23) is a sandwiched revolving body composed of an outer body (231) and an inner body (232), the small end is sealed, the large end is connected with a water supply system, the outer body (231) is a closed structure, at least one water hole (233) is annularly distributed on the inner body (232), cooling water enters from the sandwiched layer (234) and is discharged from the water hole (233) to form a water curtain, the axes of the same water hole and the revolving body have the same included angle, and the included angle is 15-25 degrees.
7. The cable aluminum sheath continuous coated core wire scald preventing system as claimed in claim 1, wherein a clearance C1 between the heat insulating sleeve (22) and the core wire (14) is = 1-2 mm, a clearance C2 between the heat insulating sleeve (22) and an inner hole of the male die (16) is = 0.5-2 mm, and a distance L = 0-20 mm of the heat insulating sleeve (22) extending out of an end face of the male die (16); the clearance C3= 3-5 mm between the water outlet hole of the water spray cooling device (23) and the aluminum pipe (15), and the included angle delta = 15-25 degrees between the water spray column and the aluminum pipe (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921303903.1U CN210123674U (en) | 2019-08-13 | 2019-08-13 | Cable aluminum sheath continuous cladding core wire scald preventing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921303903.1U CN210123674U (en) | 2019-08-13 | 2019-08-13 | Cable aluminum sheath continuous cladding core wire scald preventing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210123674U true CN210123674U (en) | 2020-03-03 |
Family
ID=69634578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921303903.1U Active CN210123674U (en) | 2019-08-13 | 2019-08-13 | Cable aluminum sheath continuous cladding core wire scald preventing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210123674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379571A (en) * | 2019-08-13 | 2019-10-25 | 大连康丰科技有限公司 | A kind of continuous cladding core wire anti-scald system of electrical cable aluminium sheath |
-
2019
- 2019-08-13 CN CN201921303903.1U patent/CN210123674U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379571A (en) * | 2019-08-13 | 2019-10-25 | 大连康丰科技有限公司 | A kind of continuous cladding core wire anti-scald system of electrical cable aluminium sheath |
| CN110379571B (en) * | 2019-08-13 | 2024-02-27 | 大连康丰科技有限公司 | Cable aluminum sheath continuous cladding core wire anti-scalding system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210123674U (en) | Cable aluminum sheath continuous cladding core wire scald preventing system | |
| CN110421276B (en) | Water-air integrated cooling device for laser cutting head | |
| US4573893A (en) | Extrusion die with external and internal cooling means | |
| US3538547A (en) | Extruder head for dual extrusion | |
| CN206697276U (en) | A kind of electric automobile large current charge cable | |
| CN205110409U (en) | Continuous extrusion die | |
| CN110379571B (en) | Cable aluminum sheath continuous cladding core wire anti-scalding system | |
| CN205564396U (en) | A three -layer is crowded device altogether for crosslinked cable | |
| CN218966093U (en) | Extrusion die for foaming type insulating cable core | |
| KR100749300B1 (en) | Apparatus for manufacturing multiple pipe and the method thereof | |
| CN105355333B (en) | Aluminium alloy cable insulation, sheath preparation technique and equipment | |
| CN210080361U (en) | Casting roller with cooling structure | |
| CN102179916B (en) | High-efficiency cooling device for pipe extruding mold core | |
| CN110993191B (en) | Wire and cable extrusion production device | |
| CN116373262A (en) | Plastic pipe machining cooling and shaping system and cooling method thereof | |
| CN113470891A (en) | Skin effect heating cable system and process | |
| CN105042208B (en) | Multiple tube and its moulding process | |
| CN201244893Y (en) | Precooling apparatus for plastic pipe production line | |
| CN106426927A (en) | Cooling device for 3D printing device | |
| WO2024212374A1 (en) | Multi-layer co-extrusion machine head and production line and production method for wet stator motor winding wire | |
| CN105869718B (en) | A kind of carbon-fibre wire of aluminium cladding | |
| CN218557916U (en) | Cooling device for extrusion molding machine head | |
| CN219924105U (en) | Cooling device for rolled pierced billet | |
| CN205789280U (en) | A kind of pipeline group coaxial cable | |
| CN212628471U (en) | Graphitizing furnace end electrode cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |