Water-blocking tensile corrosion-resistant gas guide sensor cable

Abstract

The utility model relates to a water-blocking tensile corrosion-resistant gas guide sensor cable, which comprises a gas guide tube, insulating wire cores, high-strength filling cores, a water-blocking layer, a shielding layer, an inner sheath and an outer sheath, wherein a plurality of insulating wire cores and a plurality of high-strength filling cores are arranged outside the gas guide tube and are twisted to form a cable core; and a water-blocking tape, a shielding layer, an inner sheath and an outer sheath are sequentially arranged outside the cable core. The cable provided by the utility model is used for a sensor control system in various severe environments, and has the effects of water resistance, tension resistance, corrosion resistance and the like.

Description

Technical Field

[0001] The utility model relates to the field of sensor cables, in particular to a water-blocking, tensile-resistant, and corrosion-resistant gas-conducting sensor cable. Background Art

[0002] The function of the sensor is to convert the detected physical or chemical changes into electrical signals, which are sent to the processor to identify the state and changes of the object, so as to determine how to proceed to the next action. With the advent of the intelligent era, the various information that needs to be collected and processed is becoming increasingly complex. In order to transmit accurate and stable signals in various complex and harsh environments such as acid, alkali, humidity, heat, and underwater, the gas-conducting sensor cable as a transmission medium is particularly important.

[0003] In harsh environments, cable sheaths are easily corroded or damaged, shortening their service life. Mechanical pressure during installation or maintenance, defects in the insulation layer, etc., will cause water to gradually penetrate into the cable, especially in the sheath. Due to capillary action, water will spread along the cable axis, causing instability and distortion of the transmitted signal, posing a certain safety hazard.

[0004] The patent authorization number is CN217640742U, which discloses a waterproof, tensile-resistant gas-conducting detection cable, including an outer sheath, a shielding layer, a waterproof decompression layer, and a cable core; wherein the cable core is located in the center of the cable, and the cable core includes an air guide tube, a power line, and a signal line, and the signal line and the power line are closely arranged on the outer circle of the air guide tube. The waterproof decompression layer of the gas-conducting detection cable of the above patent is an extruded polyethylene sheath, which can organize the radial penetration of water but cannot prevent the longitudinal spread of water in the cable core; the tensile resistance mainly relies on the shielding layer mixed with galvanized steel wire and tinned copper wire, and the shielding layer is easily deformed by tension, thereby affecting the shielding effect of the cable; there is only one layer of sheath, and the environmental performance such as acid and alkali resistance, moisture and heat resistance, and corrosion resistance is general. When the cable is used for a long time, the transmission effect and life of the cable will be affected to a certain extent. Summary of the invention

[0005] In view of the deficiencies in the prior art, the utility model provides a water-blocking, tensile-resistant, and corrosion-resistant gas-conducting sensor cable, which is a cable for sensor control systems in various harsh environments and has water-blocking, tensile-resistant, and corrosion-resistant functions.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: a water-blocking, tensile-resistant and corrosion-resistant gas-conducting sensor cable, including an air-conducting tube, an insulating wire core, a high-strength filling core, a water-blocking layer, a shielding layer, an inner sheath and an outer sheath, a plurality of insulating wire cores and a plurality of high-strength filling cores twisted into a cable core are arranged outside the air-conducting tube, and a water-blocking tape, a shielding layer, an inner sheath and an outer sheath are arranged outside the cable core in sequence.

[0007] The beneficial effects of the utility model are as follows: the utility model is a special cable with functions of water blocking, tensile resistance, chemical corrosion resistance, etc., which is used in conjunction with detection systems and sensors in extreme environments in industries such as petroleum, chemical industry, mining, and water conservancy.

[0008] The cable is made of an insulated core and a high-strength filling core twisted into a cable core. The high-strength filling core can greatly improve the tensile strength of the cable. A water-blocking layer (water-blocking tape) is wrapped around the cable core. The water-blocking tape expands rapidly when it encounters water, and the expanded volume fills the gap between the cable cores, which can effectively prevent moisture from invading and diffusing, achieving the purpose of water blocking, thereby ensuring that the cable has a good water-blocking and moisture-proof effect. The braided shielding layer effectively reduces the interference of external electromagnetic signals. The sheath adopts a double sheath structure, which can achieve good water-blocking and corrosion-resistant effects while strengthening the protection of the cable core. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model;

[0010] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model. DETAILED DESCRIPTION

[0011] like Figure 1 , 2 As shown, a water-blocking, tensile-resistant and corrosion-resistant gas-conducting sensor cable includes an air-conducting tube, an insulating core, a high-strength filling core, a water-blocking layer, a shielding layer, an inner sheath and an outer sheath.

[0012] Three insulating cores are arranged at intervals outside an air guide tube, a high-strength filling core is arranged between each of the three insulating cores and twisted into a cable core, a water-blocking layer is wrapped around the cable core, a shielding layer is woven outside the water-blocking layer, an inner sheath is extruded outside the shielding layer, and an outer sheath is extruded outside the inner sheath.

[0013] The airway tube is a hollow structure and is made of a polypropylene tube.

[0014] The insulated core is composed of a conductor I with an insulating layer I outside. The conductor I is made of 7 0.3mm tinned copper wires twisted together to ensure stable signal transmission and improve the tensile performance of the cable. The insulating layer I is made of 105℃ polyvinyl chloride, which has good electrical insulation properties and acid and alkali resistance, and can ensure that the cable can stably transmit signals in harsh operating environments.

[0015] The high-strength filling core is composed of a filling rope with an insulating layer II outside. The filling rope is made of high-strength nylon yarn. The breaking force of a single filling rope is greater than 70N. The insulating layer II is made of 105℃ polyvinyl chloride material, so that the outer diameter of the filling core and the insulating core are the same to ensure the roundness after cabling. Three high-strength filling cores are twisted in the cable core, which can greatly improve the tensile strength of the cable, ensure that the cable does not stretch and deform when installed vertically, and ensure good signal transmission effect.

[0016] The water-blocking layer adopts water-blocking tape, which has high performance of tensile resistance, high temperature resistance and water absorption rate. When the water that penetrates into the cable comes into contact with the water-absorbing material in the water-blocking tape, the volume of the water-absorbing material itself expands rapidly, and the expanded volume fills the cable gap, thereby preventing further intrusion of moisture and longitudinal and radial diffusion, thereby achieving the purpose of water blocking.

[0017] The shielding layer is woven with tinned copper monofilament, which gives the cable good anti-interference performance and reduces external electromagnetic interference.

[0018] In order to protect the wire core and air duct, the inner sheath and outer sheath are extruded outside the shielding layer. The inner sheath is made of 105℃ soft polyvinyl chloride, which has good high and low temperature resistance, and is soft and elastic. It plays a good protective role for the internal insulation wire core and air duct, and is easy to lay. The outer sheath is made of polytetrafluoroethylene propylene fluoroplastic, which has excellent corrosion resistance, extremely low permeability, high and low temperature resistance, outstanding impact resistance, and stable electrical properties.

[0019] The double sheath structure of inner sheath and outer sheath can further improve the waterproof performance, while ensuring that the cable is suitable for various harsh environments such as acid and alkali, damp and hot, high and low temperature, etc., protecting the internal insulating core and air guide tube from damage, extending the service life of the cable, and achieving good water-blocking and corrosion-resistant effects of the cable.

Claims

1. A water-blocking, tensile-resistant, and corrosion-resistant gas-conducting sensor cable, characterized in that: The cable comprises an air guide tube (1), an insulating wire core (2), a high-strength filling core (3), a water-blocking layer (4), a shielding layer (5), an inner sheath (6), and an outer sheath (7); a plurality of insulating wire cores (2) and a plurality of high-strength filling cores (3) are twisted into a cable core outside the air guide tube (1); and a water-blocking layer (4), a shielding layer (5), an inner sheath (6), and an outer sheath (7) are sequentially provided outside the cable core.

2. The water-blocking, tensile-resistant, and corrosion-resistant gas-conducting sensor cable according to claim 1, characterized in that: The cable core has a structure in which three insulating wire cores (2) are arranged at intervals outside an air guide tube (1), and a high-strength filling core (3) is respectively arranged between the three insulating wire cores (2).

3. The water-blocking, tensile-resistant, and corrosion-resistant gas-conducting sensor cable according to claim 1, characterized in that: The air guide tube (1) is a hollow structure and is made of polypropylene material.

4. The water-blocking, tensile-resistant, and corrosion-resistant gas-conducting sensor cable according to claim 1, characterized in that: The insulated wire core (2) is composed of a conductor (2-1) with an insulating layer I (2-2) disposed outside the conductor (2-1), and the conductor (2-1) is formed by twisting 7 0.3 mm tinned copper wires.

5. The water-blocking, tensile-resistant, and corrosion-resistant gas-conducting sensor cable according to claim 4, characterized in that: The high-strength filling core (3) is composed of a filling rope (3-1) with an insulating layer II (3-2) disposed outside, and the filling rope (3-1) is made of nylon yarn.

6. The water-blocking, tensile-resistant, and corrosion-resistant gas-conducting sensor cable according to claim 5, characterized in that: The insulating layer I (2-2) and the insulating layer II (3-2) are both made of 105°C polyvinyl chloride.

7. The water-blocking, tensile-resistant, and corrosion-resistant gas-conducting sensor cable according to claim 1, characterized in that: The water blocking layer (4) is a water blocking tape.

8. The water-blocking, tensile-resistant, and corrosion-resistant gas-conducting sensor cable according to claim 1, characterized in that: The shielding layer (5) is made of braided tinned copper monofilaments.

9. The water-blocking, tensile-resistant, and corrosion-resistant gas-conducting sensor cable according to claim 1, characterized in that: The inner sheath (6) is made of 105°C soft polyvinyl chloride material.

10. The water-blocking, tensile-resistant, and corrosion-resistant gas-conducting sensor cable according to claim 1, characterized in that: The sheath (7) is made of poly(fluoroethylene propylene) material.

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