CN210325294U

CN210325294U - Cross-linked polyethylene insulated anti-interference water-blocking control cable

Info

Publication number: CN210325294U
Application number: CN201921561403.8U
Authority: CN
Inventors: 宗铭; 谈亮; 刘云昌
Original assignee: JIANGSU HONGXIANG CABLE CO Ltd
Current assignee: JIANGSU HONGXIANG CABLE CO Ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-04-14
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a cross-linked polyethylene insulation anti-interference water-blocking control cable, which comprises a water-blocking wire core, wherein the water-blocking wire core comprises a wire core part and a separation water-blocking layer, the wire core part comprises a wire core main body and a cross-linked polyethylene insulating layer, the cross-linked polyethylene insulating layer is coated outside the wire core main body, two wire core parts are arranged in each group, the two wire core parts are twisted, at least two separation water-blocking layers are arranged outside each group of wire core part, inner petroleum jelly filling layers are respectively arranged between the separation water-blocking layer and the cross-linked polyethylene insulating layer and between the separation water-blocking layer and the separation water-blocking layer, the separation water-blocking layer and the inner petroleum jelly filling layer are arranged outside each group of wire core parts at intervals, outside water is difficult to puncture each inner petroleum jelly filling layer and the separation water-blocking layer, namely, the water-proof and moisture-proof performances, to avoid that water will enter the wire core.

Description

Cross-linked polyethylene insulated anti-interference water-blocking control cable

Technical Field

The utility model relates to the technical field of cables, specifically a crosslinked polyethylene insulating anti-interference control cable that blocks water.

Background

Cables are generally rope-like cables made by stranding several or groups of conductors, at least two in each group, each group being insulated from each other and often twisted around a center, the entire outer surface being covered with a highly insulating covering. The device is erected in the air or installed underground or underwater for telecommunication or power transmission. In 1832, the sars and retired officer schooling grid buried the telegraph line underground, and the six wires were insulated with rubber and placed in a glass tube, which is the earliest underground cable in the world.

The insulated wire is formed by arranging one or more mutually insulated conductive wire cores in a sealed sheath. It may be coated with a protective coating for transmitting, distributing electrical energy or transmitting electrical signals. The difference between the cable and the common wire is mainly that the cable is large in size and complex in structure.

The cross-linked polyethylene insulation is usually used on a control cable due to good performance, the cross-linked polyethylene insulation is coated outside a conductor to play an insulation role, the cable is generally blocked by filling filler in the prior art, so that external water or moisture is prevented from entering the conductor of the cable to influence the work of the cable, but only the filler is used for blocking water, the filler is easy to puncture by the water, and the water blocking effect is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-interference control cable that blocks water of crosslinked polyethylene insulation to solve generally among the prior art and adopt the mode of filling the filler to block water to the cable, with avoid external water or the conductor inside influence its work of moisture entering cable, but only use the filler to block water, water punctures the filler easily, the poor problem of effect of blocking water.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anti-interference control cable that blocks water of crosslinked polyethylene insulation, includes the sinle silk that blocks water, block that the waterline core includes line core and separation water blocking layer, sinle silk portion includes sinle silk main part and crosslinked polyethylene insulating layer, the cladding of crosslinked polyethylene insulating layer is in the outside of sinle silk main part, and every group sinle silk portion is provided with two altogether, and two sinle silk portion transposition, the outside of every group of line core is provided with two-layer separation water blocking layer at least, separate between water blocking layer and the crosslinked polyethylene insulating layer and separate water blocking layer and separate and all be provided with interior petroleum jelly filling layer between the water blocking layer.

Preferably, the water blocking wire core is provided with at least three groups, and a form maintaining layer is arranged outside the water blocking wire core.

Preferably, petroleum jelly is arranged between the form maintaining layer and the outermost layer of the water blocking wire core.

Preferably, a copper mesh woven layer is arranged outside the circumference of the form maintaining layer, and a double-sided aluminum foil is arranged outside the copper mesh woven layer.

Preferably, the outside of two-sided aluminium foil is provided with fire-retardant layer, the outside on fire-retardant layer is provided with the polyurethane protective sheath.

Preferably, the separation water-blocking layer is set as a water-blocking tape.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the separation water-resistant layer and the inner petroleum jelly filling layer are arranged outside each group of the wire core part at intervals, and outside water is difficult to puncture each inner petroleum jelly filling layer and the separation water-resistant layer, namely the water-proof and moisture-proof performance can be enhanced by the inner petroleum jelly filling layer and the separation water-resistant layer which are arranged at intervals so as to prevent water from entering the wire core part;

2. the utility model discloses set up metallic form holder for sinle silk and petroleum jelly, and then made the form of this cable to keep, guarantee that it is pleasing to the eye and make this inside sinle silk compressive capacity reinforcing.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is the structure diagram of the water-blocking wire core of the present invention.

In the figure: 1. a water blocking wire core; 11. a wire core; 111. a core body; 112. a crosslinked polyethylene insulating layer; 12. separating the water-resistant layer; 13. an inner petroleum jelly filled layer; 2. a morphology-retaining layer; 3. a copper mesh braid layer; 4. double-sided aluminum foil; 5. a flame retardant layer; 6. a polyurethane protective sleeve; 7. and (4) petroleum jelly.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, in an embodiment of the present invention, an anti-interference crosslinked polyethylene insulated water-blocking control cable includes a water-blocking wire core 1, the water-blocking wire core 1 includes a wire core portion 11 and a separation water-blocking layer 12, the wire core portion 11 includes a wire core main body 111 and a crosslinked polyethylene insulating layer 112, the crosslinked polyethylene insulating layer 112 covers the wire core main body 111, and two wire core portions 11 are twisted together in each group, the crosslinked polyethylene insulating layer 112 is crosslinked and modified polyethylene, which improves the mechanical properties, the environmental stress cracking resistance, the chemical corrosion resistance, the creep resistance, the electrical properties, and other comprehensive properties of polyethylene, and significantly improves the temperature resistance level, and the wire core main body 111 is used as a conductor for conducting electricity;

as shown in fig. 2, at least two separated water-blocking layers 12 are arranged outside each group of wire core portions 11, the separated water-blocking layers 12 are water-blocking tapes, inner petroleum jelly filling layers 13 are arranged between the separated water-blocking layers 12 and the cross-linked polyethylene insulating layer 112 and between the separated water-blocking layers 12 and the separated water-blocking layers 12, and the separated water-blocking layers 12 and the inner petroleum jelly filling layers 13 are arranged outside each group of wire core portions 11 at intervals, so that the waterproof and moisture-proof performance can be enhanced, and water can be prevented from entering the wire core portions 11;

referring to fig. 1, at least three groups of water-blocking wire cores 1 are arranged, a form maintaining layer 2 is arranged outside each water-blocking wire core 1, each form maintaining layer 2 is made of metal and used for maintaining the appearance of the cable, petroleum jelly 7 is arranged between each form maintaining layer 2 and the outermost layer of each water-blocking wire core 1, the petroleum jelly 7 can primarily reduce external moisture and humidity from entering the water-blocking wire core 1, a copper mesh weaving layer 3 is arranged outside the circumference of each form maintaining layer 2, a double-sided aluminum foil 4 is arranged outside each copper mesh weaving layer 3, the anti-interference performance can be enhanced due to the cooperation of the copper mesh weaving layers 3 and the double-sided aluminum foil 4, a flame-retardant layer 5 is arranged outside each double-sided aluminum foil 4, the flame-retardant layer 5 plays a flame-retardant role, a polyurethane protective sleeve 6 is arranged outside each flame-retardant layer 5; when using this cable, polyurethane protective sheath 6 plays the protection and improves insulating effect, fire-retardant layer 5 plays fire-retardant effect, copper mesh weaving layer 3 can make the interference killing feature reinforcing with the cooperation of two-sided aluminium foil 4, form keeps the appearance that layer 2 can keep this cable, reduce the deformation of this cable, petroleum jelly 7 then can be first of all reduce outside moisture and get into the inside that blocks water sinle silk 1, set up at the outside interval of each group line core 11 and separate water blocking layer 12 and interior petroleum jelly filling layer 13, outside water is difficult to puncture each interior petroleum jelly filling layer 13 and separate water blocking layer 12, the interior petroleum jelly filling layer 13 that sets up at the interval promptly can strengthen waterproof and moisture-proof properties with separating water blocking layer 12, in order to avoid water will get into line core 11.

The utility model discloses a theory of operation and use flow: when using this cable, polyurethane protective sheath 6 plays the protection and improves insulating effect, fire-retardant layer 5 plays fire-retardant effect, copper mesh weaving layer 3 can make the interference killing feature reinforcing with the cooperation of two-sided aluminium foil 4, form keeps the appearance that layer 2 can keep this cable, reduce the deformation of this cable, petroleum jelly 7 then can be first of all reduce outside moisture and get into the inside that blocks water sinle silk 1, set up at the outside interval of each group line core 11 and separate water blocking layer 12 and interior petroleum jelly filling layer 13, outside water is difficult to puncture each interior petroleum jelly filling layer 13 and separate water blocking layer 12, the interior petroleum jelly filling layer 13 that sets up at the interval promptly can strengthen waterproof and moisture-proof properties with separating water blocking layer 12, in order to avoid water will get into line core 11.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an anti-interference control cable that blocks water of crosslinked polyethylene insulation, includes sinle silk (1) that blocks water, its characterized in that: the water-blocking wire core (1) comprises a wire core part (11) and a separation water-blocking layer (12), the wire core part (11) comprises a wire core main body (111) and a cross-linked polyethylene insulating layer (112), the cross-linked polyethylene insulating layer (112) is coated outside the wire core main body (111), two wire core parts (11) are arranged in each group, the two wire core parts (11) are twisted, two layers of separation water-blocking layers (12) are arranged outside each group of wire core parts (11), and inner petroleum jelly filling layers (13) are arranged between the separation water-blocking layers (12) and the cross-linked polyethylene insulating layers (112) and between the separation water-blocking layers (12) and the separation water-blocking layers (12).

2. The cross-linked polyethylene insulated anti-interference water-blocking control cable according to claim 1, wherein: the water-blocking cable core (1) is at least provided with three groups, and a form maintaining layer (2) is arranged outside the water-blocking cable core (1).

3. The cross-linked polyethylene insulated anti-interference water-blocking control cable according to claim 2, wherein: petroleum jelly (7) is arranged between the form maintaining layer (2) and the outermost layer of the water blocking wire core (1).

4. The cross-linked polyethylene insulated anti-interference water-blocking control cable according to claim 3, wherein: the shape maintaining layer (2) is characterized in that a copper mesh woven layer (3) is arranged outside the circumference of the shape maintaining layer, and a double-sided aluminum foil (4) is arranged outside the copper mesh woven layer (3).

5. The cross-linked polyethylene insulated anti-interference water-blocking control cable according to claim 4, wherein: the outside of two-sided aluminium foil (4) is provided with fire-retardant layer (5), the outside on fire-retardant layer (5) is provided with polyurethane protective sheath (6).

6. The cross-linked polyethylene insulated anti-interference water-blocking control cable according to claim 1, wherein: the separation water-blocking layer (12) is set as a water-blocking tape.