CN217086189U - Cross-linked polyethylene insulated cold-resistant control cable - Google Patents

Cross-linked polyethylene insulated cold-resistant control cable Download PDF

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Publication number
CN217086189U
CN217086189U CN202220178111.1U CN202220178111U CN217086189U CN 217086189 U CN217086189 U CN 217086189U CN 202220178111 U CN202220178111 U CN 202220178111U CN 217086189 U CN217086189 U CN 217086189U
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layer
inner sheath
cable
cold
insulating layer
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CN202220178111.1U
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石学军
程忠
李远清
马来智
田兆亚
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Anhui Honghai Cable Co ltd
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Anhui Honghai Cable Co ltd
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Abstract

The utility model discloses a cold-resistant control cable of crosslinked polyethylene insulation, including first shielding layer and the cable core of setting in first shielding layer inside, the external fixation of first shielding layer is provided with the inner liner, the external fixation of inner liner is provided with the second insulating layer, the external fixation of second insulating layer is provided with first inner sheath layer, the outside on first inner sheath layer is provided with second inner sheath layer, be provided with the resistance to compression layer between first inner sheath layer and the second inner sheath layer, the resistance to compression layer comprises fifteen elastic buffer components, the outside on second inner sheath layer is provided with outside restrictive coating. The utility model discloses to among the prior art because the cold-resistant sheath of only one deck of current cold-resistant cable to make the cold-resistant performance of cable good inadequately, and the compressive property of current cold-resistant cable is good inadequately, can cause the cable pressurized and damage the scheduling problem to improve under the extrusion. The utility model has the advantages of improve the cold resistance and the compressive property of cable.

Description

Cross-linked polyethylene insulated cold-resistant control cable
Technical Field
The utility model relates to the technical field of cables, especially, relate to an insulating cold-resistant control cable of crosslinked polyethylene.
Background
Control cables are generally rope-like cables made up of several or groups of conductors twisted together, each group of conductors being insulated from one another and often twisted around a center, the entire outer surface being coated with a highly insulating coating, and the cables having different properties depending on the requirements of the environment in which they are used.
Among the prior art, the cable need be when using in the low temperature district, because the cold-resistant sheath of current cold-resistant cable only one deck to make the cold-resistant performance of cable good inadequately, low temperature can pass through the oversheath and transmit to inside the cable, thereby can damage the inside sheath of cable, and influence the use of cable, and the compressive property of current cold-resistant cable is good inadequately, can cause the cable to be stressed and damage under the extrusion.
To above technical problem, the utility model discloses an insulating cold-resistant control cable of crosslinked polyethylene, the utility model has the advantages of cold-resistant performance and compressive property of improvement cable.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art not enough, provide a cold-resistant control cable of crosslinked polyethylene insulation to solve among the prior art because current cold-resistant cable only the cold-resistant sheath of one deck, thereby make the cold-resistant performance of cable good inadequately, and the compressive property of current cold-resistant cable is good inadequately, can cause the cable to be compressed and technical problem such as damage under the extrusion, the utility model has the advantages of improve the cold-resistant performance and the compressive property of cable.
The utility model discloses a following technical scheme realizes: the utility model discloses a crosslinked polyethylene insulated cold-resistant control cable, which comprises a first shielding layer and a cable core arranged in the first shielding layer, wherein the cable core comprises sixteen insulated wire cores, each insulated wire core consists of a copper conductor, a crosslinked polyethylene insulating layer, a first insulating layer and a belting layer, the crosslinked polyethylene insulating layer is fixedly arranged outside the copper conductor, the first insulating layer is arranged outside the crosslinked polyethylene insulating layer, the belting layer is arranged outside the first insulating layer, an inner liner is fixedly arranged outside the first shielding layer, the second insulating layer is fixedly arranged outside the inner liner, the first inner sheath layer is fixedly arranged outside the second insulating layer, the second inner sheath layer is arranged outside the first inner sheath layer, a compression-resistant layer is arranged between the first inner sheath layer and the second inner sheath layer, the compression-resistant layer consists of fifteen elastic buffer components, the fifteen elastic buffer components are arranged outside the first inner sheath layer in a surrounding array manner, the outside on second inner sheath layer is provided with outside restrictive coating.
Further, the elastic buffering component comprises two elastic arc pieces and two connecting arc pieces, the two elastic arc pieces are symmetrically and fixedly arranged between the first inner sheath layer and the second inner sheath layer, and the two ends of each elastic arc piece are fixedly connected with the first inner sheath layer and the second inner sheath layer through the connecting arc pieces respectively.
Further, outside sheath subassembly includes third insulating layer, second shielding layer, armor and oversheath, and the fixed outside that sets up at second inner sheath layer of third insulating layer, the fixed outside that sets up at the third insulating layer of second shielding layer, the fixed outside that sets up at the second shielding layer of armor, the fixed outside that sets up at the armor of oversheath.
Further, a filling layer is arranged in a cavity between the first shielding layer and the cable core.
Further, the first shielding layer and the second shielding layer are copper wire woven layers, the wrapping tape layer is wrapped by a polyester tape, the first inner sheath layer and the second inner sheath layer are extruded flame-retardant polyvinyl chloride inner sheaths, the armor layer is galvanized steel tape armoring, and the outer sheath is a cold-resistant flame-retardant polyvinyl chloride sheath.
Furthermore, the first heat insulation layer, the second heat insulation layer and the third heat insulation layer are all made of aerogel felts.
The utility model has the advantages of it is following:
(1) the utility model discloses a set up the oversheath, first insulating layer, second insulating layer and third insulating layer, and with first insulating layer, second insulating layer and third insulating layer all set up to aerogel felt material, and the oversheath sets up to the fire-retardant polyvinyl chloride sheath of cold-resistant type, thereby make the oversheath have cold-resistant performance, and can carry out triple heat preservation through first insulating layer, second insulating layer and third insulating layer, avoid external low temperature to transmit inside the cable, influence the inside sheath of cable and receive to freeze and damage, consequently, can improve the cold resistance of cable.
(2) The utility model discloses a set up the resistance to compression layer, and set up the resistance to compression layer to encircle the outside on first inner sheath layer by fifteen elastic buffer components, thereby can carry out the elasticity resistance to compression through the elasticity arc piece that encircles setting between first inner sheath layer and the second inner sheath layer, when the cable outside receives the extrusion, the elasticity arc piece can play the effect of elasticity buffering through the elasticity of self, thereby make the cable have the resistance to compression effect, avoid the cable to receive the extrusion and the deformation damage, and connect the arc piece through setting up, thereby can support the both ends of elasticity arc piece through connecting the arc piece, the both ends of avoiding the elasticity arc piece insert to the inside on first inner sheath layer and second inner sheath layer.
Drawings
Fig. 1 is a schematic cross-sectional structural view of a cable of the present invention;
FIG. 2 is a schematic view of the enlarged structure of the part A of FIG. 1 according to the present invention;
fig. 3 is a schematic structural view of the elastic arc piece of the present invention.
In the figure: 1. a first shielding layer; 2. a cable core; 3. an inner liner layer; 4. a second thermal insulation layer; 5. a first inner jacket layer; 6. a second inner jacket layer; 7. a pressure resistant layer; 8. an outer jacket layer; 9. a filling layer; 10. an insulated wire core; 101. a copper conductor; 102. a crosslinked polyethylene insulating layer; 103. a first insulating layer; 104. a belting layer; 701. an elastic buffer component; 7011. an elastic arc piece; 7012. connecting the arc sheets; 801. a third thermal insulation layer; 802. a second shielding layer; 803. an armor layer; 804. an outer sheath.
Detailed Description
The following embodiments of the present invention are described in detail, and the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments, and in the description of the present invention, words like "front", "back", "left", "right", etc. indicating directions or position relations are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
Example 1
Embodiment 1 discloses a crosslinked polyethylene insulated cold-resistant control cable, as shown in fig. 1-2, comprising a first shielding layer 1 and a cable core 2 disposed inside the first shielding layer 1, wherein the cable core 2 comprises sixteen insulated cable cores 10, each insulated cable core 10 is composed of a copper conductor 101, a crosslinked polyethylene insulating layer 102, a first insulating layer 103 and a tape layer 104, the crosslinked polyethylene insulating layer 102 is fixedly disposed outside the copper conductor 101, the crosslinked polyethylene insulating layer 102 is disposed to insulate the outside of the copper conductor 101 through the crosslinked polyethylene insulating layer 102, the first insulating layer 103 is disposed outside the crosslinked polyethylene insulating layer 102, the first insulating layer 103 is disposed to insulate the copper conductor 101 and the crosslinked polyethylene insulating layer 102 through the first insulating layer 103, the tape layer 104 is disposed outside the first insulating layer 103, the inner liner 3 is fixedly disposed outside the first shielding layer 1, the outer portion of the inner liner layer 3 is fixedly provided with a second heat insulation layer 4, the second heat insulation layer 4 is arranged, the cold resistance of the cable is enhanced through the second heat insulation layer 4, the outer portion of the second heat insulation layer 4 is fixedly provided with a first inner sheath layer 5, the outer portion of the first inner sheath layer 5 is provided with a second inner sheath layer 6, a pressure resistant layer 7 is arranged between the first inner sheath layer 5 and the second inner sheath layer 6, the pressure resistant layer 7 is composed of fifteen elastic buffer components 701, the fifteen elastic buffer components 701 are equidistantly arranged outside the first inner sheath layer 5 in a surrounding mode, the elastic buffer components 701 can conduct omnibearing pressure resistant buffering on the cable, and the outer portion of the second inner sheath layer 6 is provided with an outer sheath layer 8; as shown in fig. 1 and 3, the elastic buffer component 701 includes two elastic arc pieces 7011 and two connecting arc pieces 7012, the two elastic arc pieces 7011 are made of elastic metal, the two elastic arc pieces 7011 are symmetrically and fixedly disposed between the first inner sheath layer 5 and the second inner sheath layer 6, a cavity is reserved between the two elastic arc pieces 7011, by disposing the elastic arc pieces 7011, so that when the cable is extruded, the elastic arc pieces 7011 can exert a compression buffering effect on the cable through their own elasticity, two ends of the elastic arc pieces 7011 are respectively fixedly connected with the first inner sheath layer 5 and the second inner sheath layer 6 through the connecting arc pieces 7012, specifically, two ends of the two mutually symmetrical elastic arc pieces 7011 are respectively and fixedly disposed with the connecting arc pieces 7012, the connecting arc pieces 7012 at two ends of the elastic arc pieces 7011 are respectively and fixedly connected with an outer wall of the first inner sheath layer 5 and an inner wall of the second inner sheath layer 6, by arranging the connecting arc pieces 7012, the two ends of the elastic arc pieces 7011 can be supported by the connecting arc pieces 7012, so that the two ends of the elastic arc pieces 7011 are prevented from being inserted into the first inner sheath layer 5 and the second inner sheath layer 6; as shown in fig. 1, the external sheath assembly includes a third insulating layer 801, a second shielding layer 802, an armor layer 803 and an outer sheath 804, the third insulating layer 801 is fixedly disposed outside the second inner sheath layer 6, the second shielding layer 802 is fixedly disposed outside the third insulating layer 801, by disposing the second shielding layer 802, the shielding effect of the cable is enhanced by the second shielding layer 802, and by disposing the third insulating layer 801, the triple insulation can be achieved by the third insulating layer 801, the second insulating layer 4 and the first insulating layer 103, the cold resistance of the cable is enhanced, the armor layer 803 is fixedly disposed outside the second shielding layer 802, and the outer sheath 804 is fixedly disposed outside the armor layer 803; a filling layer 9 is arranged in a cavity between the first shielding layer 1 and the cable core 2; as shown in fig. 1-2, the first shielding layer 1 and the second shielding layer 802 are both copper wire braided layers, the belting layer 104 is wrapped with a polyester tape, the first inner sheath layer 5 and the second inner sheath layer 6 are both extruded flame retardant polyvinyl chloride inner sheaths, the armor layer 803 is a galvanized steel strip armor, and the outer sheath 804 is a cold-resistant flame retardant polyvinyl chloride sheath; the first thermal-protective coating 103, the second thermal-protective coating 4 and the third thermal-protective coating 801 are made of aerogel felt, and the first thermal-protective coating 103, the second thermal-protective coating 4 and the third thermal-protective coating 801 are made of aerogel felt, so that the external low temperature can be isolated through the excellent thermal-protective performance of the aerogel felt, and the cold resistance of the cable is improved.
The principle of the utility model is as follows: the utility model discloses a set up oversheath 804, first insulating layer 103, second insulating layer 4 and third insulating layer 801, and set up first insulating layer 103, second insulating layer 4 and third insulating layer 801 as aerogel felt material, and oversheath 804 sets up as cold-resistant type fire-retardant polyvinyl chloride sheath, thereby make oversheath 804 have cold-resistant performance, and can carry out triple insulation through first insulating layer 103, second insulating layer 4 and third insulating layer 801, avoid external low temperature to transmit to the cable inside, influence the sheath of cable inside to receive the frost and damage, thereby make the cold-resistant performance of cable better, through setting up resistance to compression layer 7, and set up resistance to compression layer 7 to encircle the outside at first inner sheath layer 5 by fifteen elastic buffer components 701, thereby can carry out the elasticity resistance to compression through the elasticity arc piece 7011 that encircles between first inner sheath layer 5 and second inner sheath layer 6, when the cable outside receives the extrusion, elasticity arc piece 7011 can play the effect of elasticity buffering through the elasticity of self to make the cable have the resistance to compression effect, avoid the cable to receive the extrusion and the deformation damage, and connect arc piece 7012 through setting up, thereby can support the both ends of elasticity arc piece 7011 through connecting arc piece 7012, avoid the both ends of elasticity arc piece 7011 to insert to the inside of first inner sheath layer 5 and second inner sheath layer 6.

Claims (6)

1. A cross-linked polyethylene insulated cold-resistant control cable comprises a first shielding layer (1) and a cable core (2) arranged inside the first shielding layer (1), and is characterized in that the cable core (2) comprises sixteen insulated cable cores (10), each insulated cable core (10) consists of a copper conductor (101), a cross-linked polyethylene insulating layer (102), a first heat-insulating layer (103) and a belting layer (104), the cross-linked polyethylene insulating layer (102) is fixedly arranged outside the copper conductor (101), the first heat-insulating layer (103) is arranged outside the cross-linked polyethylene insulating layer (102), the belting layer (104) is arranged outside the first heat-insulating layer (103), an inner lining layer (3) is fixedly arranged outside the first shielding layer (1), a second heat-insulating layer (4) is fixedly arranged outside the inner lining layer (3), and a first inner jacket layer (5) is fixedly arranged outside the second heat-insulating layer (4), the outside of first inner sheath layer (5) is provided with second inner sheath layer (6), be provided with anti pressure layer (7) between first inner sheath layer (5) and second inner sheath layer (6), anti pressure layer (7) comprise fifteen elastic buffer subassembly (701), fifteen elastic buffer subassembly (701) encircle the outside that the array set up at first inner sheath layer (5), the outside of second inner sheath layer (6) is provided with outside restrictive coating (8).
2. The cross-linked polyethylene insulated cold-resistant control cable as claimed in claim 1, wherein the elastic buffer component (701) comprises two elastic arc sheets (7011) and two connecting arc sheets (7012), the two elastic arc sheets (7011) are symmetrically and fixedly arranged between the first inner sheath layer (5) and the second inner sheath layer (6), and two ends of the elastic arc sheets (7011) are fixedly connected with the first inner sheath layer (5) and the second inner sheath layer (6) through the connecting arc sheets (7012) respectively.
3. The cross-linked polyethylene insulated cold-resistant control cable as claimed in claim 1, wherein the outer sheath assembly comprises a third thermal insulation layer (801), a second shielding layer (802), an armor layer (803) and an outer sheath (804), the third thermal insulation layer (801) is fixedly arranged outside the second inner sheath layer (6), the second shielding layer (802) is fixedly arranged outside the third thermal insulation layer (801), the armor layer (803) is fixedly arranged outside the second shielding layer (802), and the outer sheath (804) is fixedly arranged outside the armor layer (803).
4. The cross-linked polyethylene insulated cold-resistant control cable as claimed in claim 1, wherein the cavity between the first shielding layer (1) and the cable core (2) is provided with a filling layer (9).
5. The cross-linked polyethylene insulated cold-resistant control cable as claimed in claim 3, wherein the first shielding layer (1) and the second shielding layer (802) are both copper wire braided layers, the wrapping layer (104) is wrapped by a polyester tape, the first inner sheath layer (5) and the second inner sheath layer (6) are both extruded flame-retardant polyvinyl chloride inner sheaths, the armor layer (803) is a galvanized steel tape armor, and the outer sheath (804) is a cold-resistant flame-retardant polyvinyl chloride sheath.
6. The cross-linked polyethylene insulated cold-resistant control cable as claimed in claim 3, wherein the first thermal insulation layer (103), the second thermal insulation layer (4) and the third thermal insulation layer (801) are made of aerogel felts.
CN202220178111.1U 2022-01-21 2022-01-21 Cross-linked polyethylene insulated cold-resistant control cable Active CN217086189U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220178111.1U CN217086189U (en) 2022-01-21 2022-01-21 Cross-linked polyethylene insulated cold-resistant control cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220178111.1U CN217086189U (en) 2022-01-21 2022-01-21 Cross-linked polyethylene insulated cold-resistant control cable

Publications (1)

Publication Number Publication Date
CN217086189U true CN217086189U (en) 2022-07-29

Family

ID=82542495

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220178111.1U Active CN217086189U (en) 2022-01-21 2022-01-21 Cross-linked polyethylene insulated cold-resistant control cable

Country Status (1)

Country Link
CN (1) CN217086189U (en)

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