CN211016606U

CN211016606U - Tensile waterproof submersible pump cable

Info

Publication number: CN211016606U
Application number: CN201922501126.8U
Authority: CN
Inventors: 陈艳丽
Original assignee: Guangzhou Cable Decoration Materials Co ltd
Current assignee: Guangzhou Cable Decoration Materials Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-07-14
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a tensile waterproof submersible pump cable, which comprises a plurality of cable cores, a filling layer, a water-blocking layer, a tensile layer, an armor layer and a sheath layer which are arranged from inside to outside in sequence; the cable core comprises a hollow inner tube, a power supply unit, a sealing waterproof layer and an insulating layer from inside to outside, the hollow inner tube is a hollow tube body made of TPU, the power supply unit is attached to the outer side wall of the hollow inner tube, and the sealing waterproof layer is formed by extruding sealant; the tensile layer is formed by spirally coating high-strength polyethylene (HSPE) fibers. The cable core is internally provided with the sealing waterproof layer and the tensile layer is arranged outside the cable core, so that the cable has excellent tensile resistance and waterproof performance, and the cable core is internally provided with the hollow inner tube which can be used for conveying liquid such as lubricating oil and the like and has a heat dissipation effect or an oil lubrication effect on a submersible pump.

Description

Tensile waterproof submersible pump cable

Technical Field

The utility model relates to a immersible pump cable, concretely relates to is a waterproof immersible pump cable of tensile.

Background

The submersible pump is an important device for pumping water from a deep well. When the submersible pump is used, the whole unit is submerged to work, underground water is extracted to the ground surface, and the submersible pump is used for domestic water, mine emergency rescue, industrial cooling, farmland irrigation, seawater lifting and ship load adjustment, and can also be used for fountain landscape, so that the submersible pump is usually arranged at a position with a deep water level. The cable for supplying power to the submersible pump is arranged in a water environment for a long time, the requirement on the waterproof performance of the cable is extremely high, the weight of the submersible pump is large, the tensile strength of a common electric cable is low, and the cable is extremely easy to break by the submersible pump. Therefore, it is necessary to design and develop a special tensile waterproof submersible pump cable to meet the requirements of high strength and high water resistance of the submersible pump.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical defect, the utility model provides a waterproof immersible pump cable of tensile, cable core inside has sealed waterproof layer and is provided with the tensile layer in the cable core outside, makes the cable have outstanding tensile resistance and waterproof performance, and the cable core is inside to be equipped with hollow inner tube, and this hollow inner tube can be used to carry liquid such as lubricating oil for the heat dissipation or to immersible pump oil lubrication effect.

In order to solve the above problem, the utility model discloses realize according to following technical scheme:

the utility model relates to a tensile waterproof submersible pump cable, which comprises a plurality of cable cores, a filling layer, a water-blocking layer, a tensile layer, an armor layer and a sheath layer which are arranged from inside to outside in sequence;

the cable core comprises a hollow inner tube, a power supply unit, a sealing waterproof layer and an insulating layer from inside to outside, the hollow inner tube is a hollow tube body made of TPU, the power supply unit is attached to the outer side wall of the hollow inner tube, and the sealing waterproof layer is formed by extruding sealant;

the tensile layer is formed by spirally coating high-strength polyethylene (HSPE) fibers.

Furthermore, the water-blocking layer is formed by wrapping a water-blocking tape.

Further, the filling layer is filled between the cable core and the water blocking layer by adopting water blocking yarns.

Furthermore, the power supply unit is a tinned anaerobic copper wire, and a plurality of tinned anaerobic copper wires are stranded on the outer surface layer of the hollow inner tube.

Further, the insulating layer is a crosslinked polyethylene layer.

Further, the number of the cable cores is 3, and the 3 cable cores are horizontally arranged in the filling layer side by side and closely arranged.

Furthermore, the armor layer is formed by interlocking Monel steel belts.

Further, the sheath layer is a high density polyethylene layer.

Compared with the prior art, the beneficial effects of the utility model are that: the submersible pump cable of the utility model is internally provided with a waterproof cable conducting core, the inner part of the cable conducting core is provided with a hollow inner tube which is made by a polymer material drawing process, and cooling liquid such as lubricating oil is filled into the hollow inner tube, so that a power supply unit can be cooled and cooled, and the submersible pump can be ensured to work normally; the cable core is wrapped with a sealing waterproof layer in an extruding mode by adopting sealant, and when moisture flows in from a gap on the surface layer of the cable, the moisture can be prevented from further permeating into the power supply unit, so that the radial waterproof effect of the cable core is achieved; the high-strength polyethylene (HSPE) fiber is spirally coated outside the cable core to form a tensile layer, and a highly oriented rod-shaped polymer queue is arranged inside the cable core, so that the tensile layer has excellent mechanical properties of high strength and high modulus, does not absorb moisture, and greatly enhances the strength of the cable to bear the weight of the submersible pump.

Drawings

The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a cross-sectional view of the tensile waterproof submersible pump cable of the present invention;

in the figure:

1-a cable core; 11-a hollow inner tube; 12-a power supply unit; 13-sealing and waterproof layer; 14-an insulating layer;

2-a filling layer; 3-a water-resistant layer; 4-a tensile layer; 5-an armor layer; 6-sheath layer.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1, it is a preferred structure of the tensile waterproof submersible pump cable of the present invention. The submersible pump cable comprises a plurality of cable cores 1, a filling layer 2, a water blocking layer 3, a tensile layer 4, an armor layer 5 and a sheath layer 6 which are sequentially arranged from inside to outside.

Further, the cable core 1 comprises a hollow inner tube 11, a power supply unit 12, a sealing waterproof layer 13 and an insulating layer 14 from inside to outside. The hollow inner pipe 11 is a hollow pipe body made of TPU through a stretching process, the TPU is thermoplastic polyurethane elastomer rubber, has oil resistance, water resistance and mould resistance, and can fill cooling liquid such as lubricating oil into the hollow inner pipe 11 to play a role in heat dissipation and cooling.

Power supply unit 12 is attached at the lateral wall of hollow inner tube 11, and as preferred, power supply unit 12 is tin-plated anaerobic copper wire, and a plurality of tin-plated anaerobic copper wires strand at the extexine of hollow inner tube 11, adopt the copper wire to carry out the transmission of electric current, and its load is bigger than the aluminium silk iron wire, and the conducting power is strong, and the loss of reducible electric current on the wire prevents the copper wire oxidation at the tin-plated copper wire top layer.

The sealing waterproof layer 13 is a sealant which is a copolymer formed by mixing maleic acid ester, acrylic ester and vinyl acetate copolymer emulsion serving as main emulsion and raw materials such as water-based tackifying emulsion, talcum powder and an accelerator added into the main emulsion and is pressed on the surface layer of the power supply unit 12 by an extruder, and the sealant meets the national and European Union environmental protection standards. The sealant is a sealing material with certain cohesiveness, and can be filled in gaps among the stranded copper wires to form a compact sealing layer, so that the sealing effect is achieved, and moisture is prevented from radially permeating into the power supply unit 12.

The insulating layer 14 is made of a crosslinked polyethylene insulating material, and a crosslinked polyethylene layer made of the crosslinked and modified PE has stronger environmental stress cracking resistance and corrosion resistance, protects the surface layer of the cable core 1 of the cable from being corroded, and ensures the insulativity between the cable cores 1.

Preferably, according to the existing submersible pump cable structure, the number of the cable cores 1 is preferably 3, and the 3 cable cores 1 are horizontally arranged in the filling layer 2 side by side and closely arranged to form a flat shape, so that the cable is suitable for narrow laying environments.

Furthermore, the filling layer 2 is filled between the cable core 1 and the water blocking layer 3 by adopting water blocking yarns so as to stabilize the position structure of the inner cable core 1. The water-blocking layer 3 is formed by wrapping a water-blocking tape. The filling layer 2 and the water blocking layer 3 are densely wrapped outside the cable core 1, and the water blocking yarns and the water blocking tapes can expand rapidly after meeting water, so that gaps between the cable cores 1 are densely filled, and moisture is prevented from longitudinally diffusing along the gaps between the cable cores 1, so that the cable has a longitudinal waterproof function.

Further, tensile layer 4 forms for High Strength Polyethylene (HSPE) fibre spiral cladding, and High Strength Polyethylene (HSPE) fibre is novel high strength material, and its inside has highly oriented bar-shaped polymer queue for intensity is 2 times of steel wire strength, and the compliance is good, acid and alkali corrosion resistance, makes the external force that acts on the cable all act on tensile layer 4, avoids inside cable core 1 to be pulled and breaks, in order to satisfy immersible pump operation requirement.

Furthermore, the armor layer 5 is formed by interlocking and armoring Monel steel belts, the overlapping rate of the steel belts is not less than 30%, the Monel steel belts have better sulfur corrosion resistance, and the cable core 1 in the cable can be protected from corrosion.

Furthermore, the sheath layer 6 is a high-density polyethylene layer, has good wear resistance, electrical insulation, toughness and cold resistance, and protects the outer surface layer structure of the cable.

Other structures of the tensile waterproof submersible pump cable of the embodiment are disclosed in the prior art.

Above, it is only the preferred embodiment of the present invention, but not to limit the present invention in any form, so that any modification, equivalent change and modification made to the above embodiments by the technical essence of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. A tensile waterproof submersible pump cable is characterized by comprising a plurality of cable cores, a filling layer, a water blocking layer, a tensile layer, an armor layer and a sheath layer which are sequentially arranged from inside to outside;

2. The tensile waterproof submersible pump cable of claim 1, wherein: the water-blocking layer is formed by wrapping a water-blocking tape.

3. The tensile waterproof submersible pump cable of claim 2, wherein: and the filling layer is filled between the cable core and the water blocking layer by adopting water blocking yarns.

4. The tensile waterproof submersible pump cable of claim 1, wherein: the power supply unit is a tinned anaerobic copper wire, and a plurality of tinned anaerobic copper wires are stranded on the outer surface layer of the hollow inner tube.

5. The tensile waterproof submersible pump cable of claim 1, wherein: the insulating layer is a crosslinked polyethylene layer.

6. The tensile waterproof submersible pump cable of claim 1, wherein: the number of the cable cores is 3, and the 3 cable cores are horizontally arranged in the filling layer side by side and closely arranged.

7. The tensile waterproof submersible pump cable of claim 1, wherein: the armor layer is formed by Monel steel belt chain armor.

8. The tensile waterproof submersible pump cable of claim 1, wherein: the sheath layer is a high-density polyethylene layer.