Deep well submersible pump cable

Abstract

The utility model relates to a deep well submersible pump cable, and belongs to the technical field of cables. According to the technical scheme, the cable comprises a stranded steel wire rope (1), a conductor (2), an isolating layer (3), a silicone rubber insulating layer (4), a braided layer (5), a silicone rubber sheath layer (6) and an armor layer (7), the stranded steel wire rope (1) is arranged in the center of the interior of the conductor (2), the isolating layer (3) is arranged outside the conductor (2), the silicone rubber insulating layer (4) is extruded outside the isolating layer (3), and the braided layer (5), the silicone rubber sheath layer (6) and the armor layer (7) are sequentially arranged outside the silicone rubber insulating layer (4). The cable has the positive effects that the water resistance, oil resistance and corrosion resistance of the cable are improved, the wear resistance is strong, the service life of the cable is prolonged, and the cost of the cable is reduced.

Description

Technical Field

[0001] The utility model relates to a deep well submersible pump cable and belongs to the technical field of cables. Background Art

[0002] Compared with shallow wells, deep wells can penetrate deeper groundwater layers, obtain higher groundwater levels, and improve water quality and quantity; deep wells can be drilled underground and will not occupy a large amount of land resources, making them very suitable for urban and rural areas that lack land resources; deep wells are suitable for all types of geological environments, whether it is gravel layers, mud layers or rock layers, deep wells can be built.

[0003] The definition and depth of a deep well vary by region and purpose. Generally speaking, a deep well is a well used to obtain deep groundwater, usually more than 20 meters deep. In some specific cases, such as arid areas or areas with scarce water resources, the depth of a deep well may need to reach 100 meters or even deeper to obtain sufficient water.

[0004] For example, in the arid areas of northwest China, the drilling depth of deepwater wells may be between 20 meters and 300 meters, depending on the local hydrogeological conditions. In northern regions, groundwater is generally around 20 to 30 meters, but for drinking water needs, deeper wells may be required, generally between 100 and 150 meters. In areas with relatively abundant water resources, wells with a depth of 20 to 30 meters can meet the needs, while in areas with scarce or polluted water resources, the depth of the wells may need to be increased to 50 meters, 80 meters or even deeper.

[0005] Because the definition and depth standards of deepwater wells vary by region and purpose, there is no unified national standard for deepwater wells. The cables that match deepwater pumps are not universal. Usually, there are no problems when cables are used in areas with abundant water resources, but when used in areas with scarce water resources, the cable's high temperature resistance, oil resistance, water resistance, corrosion resistance, and wear resistance cannot be taken into account, and the cable will have problems after a period of operation. Utility Model Content

[0006] The utility model aims to provide a deep well submersible pump cable, which improves the water resistance, oil resistance and corrosion resistance of the cable by optimizing the cable structure, and at the same time improves the wear resistance of the cable, thereby solving the above problems existing in the background technology.

[0007] The technical solution of the utility model is:

[0008] A deep well submersible pump cable comprises a twisted steel wire rope, a conductor, an isolation layer, a silicone rubber insulation layer, a braided layer, a silicone rubber sheath layer and an armor layer, wherein a twisted steel wire rope is arranged at the center position inside the conductor, an isolation layer is arranged outside the conductor, a silicone rubber insulation layer is extruded outside the isolation layer, and a braided layer, a silicone rubber sheath layer and an armor layer are arranged outside the silicone rubber insulation layer in sequence.

[0009] Furthermore, the braided layer is a cotton thread braided layer, and the cotton thread braided layer is bonded between the silicone rubber insulation layer and the silicone rubber sheath layer.

[0010] Furthermore, the twisted steel wire rope is a twist-free braided steel wire rope.

[0011] Furthermore, the armor layer is an interlocking steel belt armor layer.

[0012] Compared with the prior art, the conductor of the deep well submersible pump cable disclosed in the utility model is additionally provided with a twisted steel wire rope, which increases the tensile strength of the cable. The insulation of the traditional deep well submersible pump cable is made of ethylene propylene rubber, and the sheath is made of chlorinated polyethylene. The maximum temperature resistance of ethylene propylene rubber and chlorinated polyethylene is 90°C. The insulation layer and the outer sheath of the utility model are both made of silicone rubber, and the maximum temperature resistance of silicone rubber is 180°C, which greatly improves the temperature resistance of the cable and increases the current carrying capacity of the cable. At the same time, silicone rubber also has good low temperature resistance, weather resistance, and water resistance. A cotton braided layer is added between the silicone rubber insulation layer and the silicone rubber sheath layer, and the silicone rubber insulation layer, the silicone rubber sheath layer and the braided layer are bonded into a whole through a bonding process, thereby increasing the firmness of the cable. The anti-corrosion performance of the cable is increased by adding an armor layer, and at the same time, the armor layer restrains the silicone rubber insulation layer and the silicone rubber sheath layer, thereby preventing the cable from swelling after long-term contact with water and oil, thereby increasing the service life of the cable.

[0013] The positive effects of the utility model are: the water resistance, oil resistance and corrosion resistance of the cable are improved, the wear resistance is strong, the service life of the cable is enhanced, and the cost of the cable is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] In the figure: twisted steel wire rope 1, conductor 2, isolation layer 3, silicone rubber insulation layer 4, braided layer 5, silicone rubber sheath layer 6, armor layer 7. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] See attached Figure 1The present embodiment provides a deep well submersible pump cable, comprising a twisted steel wire rope 1, a conductor 2, an isolation layer 3, a silicone rubber insulation layer 4, a braided layer 5, a silicone rubber sheath layer 6 and an armor layer 7, wherein the twisted steel wire rope 1 is provided at the center position inside the conductor 2, the isolation layer 3 is provided outside the conductor 2, the silicone rubber insulation layer 4 is extruded outside the isolation layer 3, and the braided layer 5, the silicone rubber sheath layer 6 and the armor layer 7 are provided outside the silicone rubber insulation layer 4 in sequence.

[0018] Furthermore, the braided layer 5 is a cotton thread braided layer, and the cotton thread braided layer is bonded between the silicone rubber insulation layer 4 and the silicone rubber sheath layer 6 .

[0019] Furthermore, the twisted steel wire rope 1 is a twist-free braided steel wire rope.

[0020] Furthermore, the armor layer 7 is an interlocking steel belt armor layer.

[0021] In this embodiment, the twisted steel wire rope 1 is used as a reinforced conductor, and a twist-free braided steel wire rope produced by Jiangsu Changhong Machinery Co., Ltd. can be used. The conductor 2 adopts the sixth type of tinned soft copper conductor. The isolation layer 3 can adopt a polyester tape with a grade of PET5.0 produced by Yangzhou Tengfei Cable and Electrical Materials Co., Ltd. The silicone rubber insulation layer 4 adopts a silicone rubber material that is resistant to high temperature, soft, and has a high volume resistivity, and can adopt a model Z-160 silicone rubber produced by Dongjue Silicone (Nanjing) Co., Ltd. The braided layer 5 is woven with cotton thread, and can adopt cotton thread produced by Guangzhou Hongmian Thread Co., Ltd. The silicone rubber sheath layer 6 adopts high-strength silicone rubber, and can adopt a model NE-260 silicone rubber produced by Dongjue Silicone (Nanjing) Co., Ltd. The armor layer 7 adopts a chain steel belt, and can adopt a brand S45C heat-treated high-strength steel belt produced by Foshan Jianchuangye Precision Steel Belt Co., Ltd.

Claims

1. A deep well submersible pump cable, characterized in that: The invention comprises a twisted steel wire rope (1), a conductor (2), an isolation layer (3), a silicone rubber insulating layer (4), a braided layer (5), a silicone rubber sheath layer (6) and an armor layer (7), wherein the twisted steel wire rope (1) is arranged at the center of the conductor (2), the isolation layer (3) is arranged outside the conductor (2), the silicone rubber insulating layer (4) is extruded outside the isolation layer (3), and the braided layer (5), the silicone rubber sheath layer (6) and the armor layer (7) are arranged outside the silicone rubber insulating layer (4) in sequence.

2. A deep well submersible pump cable according to claim 1, characterized in that: The braided layer (5) is a cotton thread braided layer, and the cotton thread braided layer is bonded between the silicone rubber insulation layer (4) and the silicone rubber sheath layer (6).

3. A deep well submersible pump cable according to claim 2, characterized in that: The twisted steel wire rope (1) is a twist-free braided steel wire rope.

4. A deep well submersible pump cable according to claim 3, characterized in that: The armor layer (7) is an interlocking steel belt armor layer.

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