CN211980241U

CN211980241U - Water-blocking cable for submarine laying

Info

Publication number: CN211980241U
Application number: CN202020300265.4U
Authority: CN
Inventors: 孙祖国; 耿纪鲜
Original assignee: Yangzhou Gaotong Photoelectric Technology Co ltd
Current assignee: Yangzhou Gaotong Photoelectric Technology Co ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-11-20
Anticipated expiration: 2030-03-12

Abstract

The utility model relates to the technical field of cables, especially, relate to a cable that blocks water for seabed lays, including armor, the powder that blocks water, plastic-aluminum composite band, oversheath, reinforcement core, inner sheath, the area that blocks water, insulating sheath, the conductor and the cable cream that blocks water, the inside wall of plastic-aluminum composite band cup joints on the lateral wall of armor, the powder that blocks water is filled in the space between armor and plastic-aluminum composite band, the oversheath cup joints on the surface of plastic-aluminum composite band, the inside wall of oversheath and the lateral wall fixed connection of plastic-aluminum composite band, the inner sheath is located the inside of armor, the inside wall of inner sheath and the lateral wall fixed connection of the area that blocks water. The utility model discloses reached and made the cable possess the purpose of good effect that blocks water to this is applicable to laying of submarine cable, can ensure electric power system's security and reliability simultaneously, and has improved the long-term existence ability of cable at submarine internal environment, has consequently improved the practicality of cable.

Description

Water-blocking cable for submarine laying

Technical Field

The utility model relates to the technical field of cables, especially, relate to a cable that blocks water for seabed is laid.

Background

Cables are generally rope-like cables made by stranding several wires or groups of wires, each group insulated from the other and often twisted around a center, the entire outer surface being covered with a highly insulating covering. The cable has the characteristics of internal electrification and external insulation. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like.

In the application of electric power engineering, the cable is usually laid in a direct burial mode, a cable trench, a tunnel and the like, the cable is required to be laid on the seabed in offshore operation, and a sealed pipeline is adopted to wrap the cable when the cable is used, so that the seawater immersion is avoided, however, the cable is difficult to avoid being in direct contact with the seawater in a long-term state, and even can be immersed in the seawater in a short term or a long term, so that the water can slowly permeate into the cable. The general cross-linked polyethylene (XLPE) insulation material generates water tree phenomenon after the cable runs for a period of time, and when the water tree grows to a certain extent, the insulation layer of the cable is broken down, so that the safety and reliability of the power system need to be further improved.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a cable that blocks water for seabed is laid has reached and has made the cable possess the purpose of good effect that blocks water to this is applicable to laying of seabed cable, can ensure electric power system's security and reliability simultaneously, and has improved the long-term existence ability of cable at seabed internal environment, consequently has improved the practicality of cable.

(II) technical scheme

In order to realize the technical problem, the utility model provides a following technical scheme: the utility model provides a cable that blocks water for seabed lays, includes armor, the powder that blocks water, plastic-aluminum composite band, oversheath, reinforcement core, inner sheath, water blocking area, insulating sheath, the conductor and the cable cream block water, the inside wall of plastic-aluminum composite band cup joints on the lateral wall of armor, the powder that blocks water is filled in the space between armor and plastic-aluminum composite band, the oversheath cup joints on the surface of plastic-aluminum composite band, the inside wall of oversheath and the lateral wall fixed connection of plastic-aluminum composite band, the inner sheath is located the inside of armor, the inside wall of inner sheath and the lateral wall fixed connection of water blocking area, the inside wall of water blocking area cup joints on insulating sheath's lateral wall, insulating sheath's inside wall cup joints on the lateral wall of the conductor that blocks water.

Further, the armor layer is of a metal mesh wire structure, and the thickness of the armor layer is 1.5-2 mm.

Further, the outer sheath is of a flame-retardant low-smoke halogen-free insulating structure, and mica micro powder is filled in the outer sheath.

Furthermore, the water-blocking powder consists of sodium acrylate, monomer acrylamide, a cross-linking agent, an initiator and deionized water.

Further, the water-blocking tape is a longitudinally-wrapped single-side insulating water-blocking tape, the water-blocking tape is composed of non-woven fabrics and water-blocking powder, and the thickness of the water-blocking tape is 0.15-0.25 mm.

Further, the reinforcing core is located at the central position inside the armor layer, and the cable paste is filled inside the armor layer.

(III) advantageous effects

The utility model provides a cable that blocks water for seabed is laid possesses following beneficial effect:

1. the utility model discloses because the setting of powder and the compound area of plastic-aluminum of blocking water, add the compound area of plastic-aluminum as the waterproof layer through the inside at the overcoat, can carry out the separation to external moisture, and the cable is soaked for a long time when the sea water is inside, the powder of blocking water meets water and will expand the gel immediately, no matter how much pressure is exerted for it this moment, moisture also can not be extruded, thereby plug up the gap, prevent the further infiltration of moisture content, with this protection cable conductor can not receive the sea water invasion, thereby reached and made the cable possess good effect of blocking water, with this laying that is applicable to submarine cable, can ensure power system's security and reliability simultaneously, and improved the long-term existence ability of cable at submarine internal environment, consequently, the practicality of cable has been improved.

2. The utility model discloses because the setting of hosepipe and the conductor that blocks water, through the hosepipe with block water the same water blocking performance of powder, can guarantee the inside invasion that can't receive moisture of inner sheath to this has improved the holistic water blocking performance of cable, the conductor that blocks water self possesses waterproof nature simultaneously, can completely cut off with external water collector, receives the parcel effect of cable cream moreover, can improve the corrosion resisting property to the sea water, improve the cable and exist ability in the seabed for a long time.

Drawings

Fig. 1 is a schematic structural diagram of the cable of the present invention;

fig. 2 is a schematic cross-sectional view of the structural cable of the present invention.

In the figure: 1. an armor layer; 2. water-blocking powder; 3. an aluminum-plastic composite tape; 4. an outer sheath; 5. a reinforcing core; 6. an inner sheath; 7. a water blocking tape; 8. an insulating sheath; 9. a water blocking conductor; 10. cable paste.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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.

Referring to fig. 1-2, the present invention provides a technical solution: a water-blocking cable for submarine laying comprises an armor layer 1, water-blocking powder 2, an aluminum-plastic composite tape 3, an outer sheath 4, a reinforcing core 5, an inner sheath 6, a water-blocking tape 7, an insulating sheath 8, a water-blocking conductor 9 and cable paste 10, wherein the inner side wall of the aluminum-plastic composite tape 3 is sleeved on the outer side wall of the armor layer 1, the water-blocking powder 2 is filled in a gap between the armor layer 1 and the aluminum-plastic composite tape 3, the outer sheath 4 is sleeved on the outer surface of the aluminum-plastic composite tape 3, the inner side wall of the outer sheath 4 is fixedly connected with the outer side wall of the aluminum-plastic composite tape 3, the inner sheath 6 is positioned inside the armor layer 1, the inner side wall of the inner sheath 6 is fixedly connected with the outer side wall of the water-blocking tape 7, the inner side wall of the water-blocking tape 7 is sleeved on the outer side wall of the insulating sheath 8, the inner side wall of the, through add aluminium-plastic composite belt 3 as the waterproof layer in the inside of overcoat 4, can carry out the separation to external moisture, and the cable is soaked when inside the sea water for a long time, the powder 2 that blocks water will expand the gel immediately when meeting water, no matter how much pressure is exerted for it this moment, moisture also can not extruded, thereby plug up the gap, prevent the further infiltration of moisture content, with this protection cable conductor can not receive the sea water invasion, thereby reached and made the cable possess good effect of blocking water, with this laying that is applicable to submarine cable, can ensure power system's security and reliability simultaneously, and improved the long-term existence ability of cable in submarine internal environment, consequently, the practicality of cable has been improved.

The armor layer 1 is of a metal mesh silk structure, the thickness of the armor layer 1 is 1.5-2mm, the outer sheath 4 is of a flame-retardant low-smoke halogen-free insulating structure, mica micro powder is filled in the outer sheath 4, the water-blocking powder 2 consists of sodium acrylate, monomer acrylamide, a cross-linking agent, an initiator and deionized water, the weight ratio of the components is that 60-80 parts of sodium acrylate, 20-40 parts of monomer acrylamide, 0.1-0.8 part of the cross-linking agent, 0.1-0.6 part of the initiator and 200 parts of deionized water, the water-blocking tape 7 is a longitudinally-wrapped single-sided insulating water-blocking tape, the water-blocking tape 7 consists of non-woven fabrics and water-blocking powder, the thickness of the water-blocking tape 7 is 0.15-0.25mm, the reinforcing core 5 is positioned at the central position in the armor layer 1, the cable paste 10 is filled in the armor layer 1, and due to the arrangement of the water-, through the water blocking performance that water blocking tape 7 and water blocking powder 2 are the same, can guarantee that inner sheath 6 is inside can't receive the invasion of moisture to this has improved the holistic water blocking performance of cable, and the conductor 9 that blocks water simultaneously self possesses waterproof nature, can completely cut off with external water collector, receives the parcel effect of cable cream 10 moreover, can improve the corrosion resisting property to the sea water, improves the long-term existence ability of cable in the seabed.

To sum up, the utility model discloses because the setting of water-blocking powder 2 and aluminum-plastic composite belt 3, through add aluminum-plastic composite belt 3 as the waterproof layer in the inside of overcoat 4, can carry out the separation to external moisture, and the cable soaks for a long time when the sea water is inside, water-blocking powder 2 meets water and will expand gel immediately, no matter how much pressure is applyed for it this moment, moisture also can not be extruded, thereby plug up the gap, prevent the further infiltration of moisture content, with this protection cable conductor can not receive the sea water invasion, thereby reached and made the cable possess good water-blocking effect, with this laying that is applicable to submarine cable, can ensure power system's security and reliability simultaneously, and improved the long-term existence ability of cable at seabed internal environment, consequently, the practicality of cable has been improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cable that blocks water for seabed lays, includes armor (1), the powder that blocks water (2), aluminum-plastic composite belt (3), oversheath (4), reinforcement core (5), inner sheath (6), the area that blocks water (7), insulating sheath (8), the conductor that blocks water (9) and cable cream (10), its characterized in that: the utility model discloses a waterproof aluminum-plastic composite belt, including armor (1), waterproof powder (2), oversheath (4), the inboard wall of composite aluminum-plastic belt (3) cup joints on the lateral wall of armor (1), waterproof powder (2) are filled in the space between armor (1) and composite aluminum-plastic belt (3), oversheath (4) cup joint on the surface of composite aluminum-plastic belt (3), the inboard wall of oversheath (4) and the lateral wall fixed connection of composite aluminum-plastic belt (3), inner sheath (6) are located the inside of armor (1), the inboard wall of inner sheath (6) and the lateral wall fixed connection of waterproof area (7), the inboard wall of waterproof area (7) cup joints on the lateral wall of insulating sheath (8), the inboard wall of insulating sheath (8) cup joints on the lateral wall of the conductor that blocks water (9).

2. A water-blocking cable for submarine laying according to claim 1, wherein: the armor layer (1) is of a metal mesh silk thread structure, and the thickness of the armor layer (1) is 1.5-2 mm.

3. A water-blocking cable for submarine laying according to claim 1, wherein: oversheath (4) are fire resistance low smoke and zero halogen insulation system, the inside packing of oversheath (4) has mica miropowder.

4. A water-blocking cable for submarine laying according to claim 1, wherein: the water-blocking tape (7) is a longitudinally-wrapped single-side insulating water-blocking tape, the water-blocking tape (7) is composed of non-woven fabrics and water-blocking powder, and the thickness of the water-blocking tape (7) is 0.15-0.25 mm.

5. A water-blocking cable for submarine laying according to claim 1, wherein: the reinforced core (5) is located at the center of the interior of the armor layer (1), and the cable paste (10) is filled in the interior of the armor layer (1).