Cable for high-temperature-resistant high-insulation resistance submersible pump

Abstract

The utility model discloses a high-temperature-resistant high-insulation cable for a resistance submersible pump, which comprises a conductor, an insulating layer is wrapped outside the conductor, a shielding layer is wrapped outside the insulating layer, a filling layer is wrapped outside the shielding layer, a reinforcing layer is wrapped outside the filling layer, an inner sheath is wrapped outside the reinforcing layer, and an outer sheath is wrapped outside the inner sheath. The inner sheath is internally provided with a pressure-resistant buffer cavity, and the outer side of the inner sheath is wrapped with the outer sheath, so that the submersible pump cable can operate in a high-temperature environment, the high-strength tensile and pressure-resistant capabilities of the cable can be improved, faults caused by physical damage can be prevented, the cable can be ensured to have excellent electrical insulation characteristics, current leakage can be prevented, and the service life of the cable can be prolonged. The potential safety hazard of electric shock is reduced, the safe operation of the cable is ensured, the high-insulation resistance material can also reduce the aging of the insulation material, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a high-temperature resistant and high-insulation-resistance submersible pump cable. Background Technology

[0002] Submersible pump cables are widely used in oil, natural gas, mining, and industrial water treatment. Especially in energy exploration and production activities in complex environments such as deep seas and polar regions, the demand for efficient and reliable submersible pump systems and their cables is increasing. Submersible pumps, as crucial equipment, typically operate in underground oil reservoirs or seabed environments. These environments may present high-temperature, high-pressure conditions, requiring excellent electrical insulation performance to ensure safety, which places extremely stringent requirements on cable materials. If the cable cannot withstand these extreme conditions, it may lead to equipment failure, production stoppages, or even safety accidents. Existing cables lack sufficient high-temperature and high-pressure resistance, as well as adequate tensile and compressive strength, significantly reducing the service life of submersible pump cables when used underwater under high temperature and pressure. Therefore, we propose a high-temperature resistant, high-insulation-resistance submersible pump cable. Utility Model Content

[0003] The purpose of this invention is to provide a high-temperature resistant and high-insulation-resistance submersible pump cable to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant and high-insulation-resistance submersible pump cable, comprising a conductor, an insulation layer wrapped around the outside of the conductor, a shielding layer wrapped around the outside of the insulation layer, a filling layer wrapped around the outside of the shielding layer, a reinforcing layer wrapped around the outside of the filling layer, an inner sheath wrapped around the outside of the reinforcing layer, a pressure-resistant buffer cavity formed inside the inner sheath, and an outer sheath wrapped around the outside of the inner sheath.

[0005] Preferably, the conductor is a multi-strand stranded tin-plated copper conductor.

[0006] Preferably, the insulating layer is a high-performance special fluoroplastic layer.

[0007] Preferably, the shielding layer is a copper foil shielding layer, tightly wrapped around the outside of the insulating layer.

[0008] Preferably, the filler layer is a high-performance water-resistant special rubber layer.

[0009] Preferably, the reinforcing layer is an aluminum alloy reinforcing layer.

[0010] Preferably, the inner sheath is a hydrophobic PE sheath, and the number of the pressure-resistant buffer cavities is not less than four, arranged in a ring array inside the inner sheath and parallel to each other.

[0011] Preferably, the outer sheath is a polyether-type polyurethane elastic sheath.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-temperature resistant, high-insulation-resistance submersible pump cable, by setting an outer sheath, an inner sheath, and a filling layer, can meet the operating conditions of submersible pump cables in high-temperature environments, and can meet the operating conditions at temperatures of 150°C or even higher. The corresponding conductor and insulation materials can fully meet the corresponding requirements. By setting a reinforcing layer, a filling layer, an inner sheath, and a pressure-resistant buffer cavity, the high-strength tensile and compressive strength of the cable can be improved, preventing failures caused by physical damage. By setting an insulation layer and a shielding layer, the cable can be guaranteed to have excellent electrical insulation characteristics, prevent current leakage, reduce the safety hazard of electric shock, and ensure the safe operation of the cable. The high insulation resistance material can also reduce the aging of insulation materials and extend the service life of the equipment. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the present invention;

[0014] Figure 2 This is a cross-sectional view of the inner sheath of this utility model.

[0015] In the diagram: 1 conductor, 2 insulation layer, 3 shielding layer, 4 filling layer, 5 reinforcing layer, 6 inner sheath, 61 pressure-resistant buffer cavity, 7 outer sheath. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-2This utility model provides a technical solution: a high-temperature resistant, high-insulation-resistance submersible pump cable, comprising a conductor 1, wherein the conductor 1 is a multi-strand stranded tin-plated copper conductor, and the corresponding wire diameter and resistance meet the requirements of the IEC60228 international standard. The tin layer can effectively prevent oxidation of the copper surface, thus having good anti-oxidation and anti-corrosion capabilities, especially suitable for humid and highly corrosive environments such as underwater and marine environments. The conductor 1 is wrapped with an insulation layer 2, which is a high-performance special fluoroplastic layer with excellent high-temperature resistance, chemical resistance, and anti-aging properties. It is widely used in harsh environments such as high temperature and chemical corrosion, and has unique high insulation resistance characteristics, which can effectively prevent current flow, prevent current leakage, reduce the risk of electric shock, and reduce the aging of insulation materials, thus extending the service life of the equipment. The insulation layer 2 is wrapped with a shielding layer 3. The shielding layer 3 is a copper foil shielding layer, tightly wrapped around the outside of the insulation layer 2. The shielding layer 3 adopts an integrated double-sided copper foil shielding, using double-sided copper foil as the whole shielding material, tightly wrapped around the outside of the cable or wire to provide comprehensive electromagnetic shielding protection. Unlike the traditional aluminum foil layered shielding method, the integrated design makes the double-sided copper foil more uniform in the shielding layer structure and stronger in shielding effect. The shielding layer 3 is wrapped with a filling layer 4, which is a high-performance water-blocking special rubber layer. The filling uses a special high-performance water-blocking special rubber material, which has excellent properties such as high temperature resistance, high flame retardancy, low smoke and non-toxicity. In particular, its waterproof, chemical resistance, acid and alkali resistance and aging resistance are particularly outstanding. The compaction extrusion method can make the filling material completely fill the gaps between each core wire, effectively blocking external water, oil and other gases from entering the inside of the cable and causing electrical defects or other abnormalities in the cable. The highly flexible filling material also gives the cable high flexibility, which can better ensure the normal operation of the cable in harsh environments and extend the service life of the cable. The filling layer 4 is wrapped with a reinforcing layer 5, which is an aluminum alloy reinforcing layer. It is lightweight, corrosion-resistant, high temperature resistant, and has excellent compressive and fatigue resistance, especially in harsh environments.It reduces weight, alleviating the burden of transportation and installation, while providing strong protection to ensure the stability and safety of the equipment. The reinforcing layer 5 is wrapped with an inner sheath 6, which contains pressure-resistant buffer chambers 61. The inner sheath 6 is a hydrophobic PE sheath, possessing excellent properties such as high temperature resistance, high flame retardancy, low smoke, and non-toxicity. Its waterproof, chemical resistance, acid and alkali resistance, and aging resistance are particularly outstanding, ensuring the normal operation of the cable and extending its service life in harsh environments. There are no fewer than four pressure-resistant buffer chambers 61, arranged in a ring array within the inner sheath 6. Inside, and parallel to each other, the pressure-resistant buffer cavity 61 undergoes elastic compressive deformation when compressed. The elastic force generated during compression is used to buffer the compressive force exerted by external compression on the internal conductor 1. The outer sheath 7 is wrapped around the outer side of the inner sheath 6. The outer sheath 7 is a polyether-type polyurethane elastic sheath, which has excellent properties such as high temperature resistance, high flame retardancy, low smoke and non-toxicity. In particular, its waterproof, chemical resistance, acid and alkali resistance, wear resistance and aging resistance are particularly outstanding. It can better protect the cable in harsh environments, prevent damage to the cable caused by the external environment, ensure the normal operation of the cable, and extend the service life of the cable.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant, high-insulation-resistance submersible pump cable, comprising a conductor (1), characterized in that: The conductor (1) is wrapped with an insulating layer (2), the insulating layer (2) is wrapped with a shielding layer (3), the shielding layer (3) is wrapped with a filling layer (4), the filling layer (4) is wrapped with a reinforcing layer (5), the reinforcing layer (5) is wrapped with an inner sheath (6), the inner sheath (6) has a pressure-resistant buffer cavity (61) inside, and the inner sheath (6) is wrapped with an outer sheath (7).

2. The high-temperature resistant, high-insulation-resistance submersible pump cable according to claim 1, characterized in that: The conductor (1) is a multi-strand stranded tin-plated copper conductor.

3. The high-temperature resistant, high-insulation-resistance submersible pump cable according to claim 1, characterized in that: The insulating layer (2) is a high-performance special fluoroplastic layer.

4. The high-temperature resistant, high-insulation-resistance submersible pump cable according to claim 1, characterized in that: The shielding layer (3) is a copper foil shielding layer, which is tightly wrapped around the outside of the insulating layer (2).

5. The high-temperature resistant, high-insulation-resistance submersible pump cable according to claim 1, characterized in that: The filler layer (4) is a high-performance water-blocking special rubber layer.

6. The high-temperature resistant, high-insulation-resistance submersible pump cable according to claim 1, characterized in that: The reinforcing layer (5) is an aluminum alloy reinforcing layer.

7. The high-temperature resistant, high-insulation-resistance submersible pump cable according to claim 1, characterized in that: The inner sheath (6) is a hydrophobic PE sheath, and the number of the pressure-resistant buffer cavities (61) is not less than four, arranged in a ring array inside the inner sheath (6) and parallel to each other.

8. The high-temperature resistant, high-insulation-resistance submersible pump cable according to claim 1, characterized in that: The outer sheath (7) is a polyether-type polyurethane elastic sheath.

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