Packaging pipe cable

Abstract

The utility model relates to the technical field of detection cables, in particular to a packaging tube cable which comprises at least one tube cable body, a fireproof layer and a packaging layer, and the fireproof layer is arranged on the peripheral side of the at least one tube cable body; the packaging layer is arranged on the peripheral side of the fireproof layer, and the packaging pipe cable can still keep a normal working state within a certain time when encountering a fire burning condition, so that the time for taking emergency measures is reserved for workers, and the loss caused by fire is further reduced or avoided.

Description

Technical Field

[0001] This application relates to the field of detection cable technology, and more particularly to a packaged cable. Background Technology

[0002] Detection cables can be used for various geological explorations, water conservancy and hydrological surveys, geothermal logging, logging, completion, perforation, coring and other work of various oil and gas wells. They are the carriers for transmitting power, signals and other data between the surface part of the mining system and underground instruments.

[0003] Modern oilfield exploration and extraction operations operate in harsh environments, often involving high temperatures, high pressures, and corrosive gases such as oil and gas. Auxiliary equipment in mines requires power control via cables, and various auxiliary materials are filled into pipes. To meet diverse operational needs, current conduits and cables often employ a combined design, containing at least one cable or optical fiber and at least one fluid delivery tube. However, these current encapsulated conduits and cables quickly lose their functionality in the event of a fire, preventing workers from taking immediate emergency measures and leading to losses. Utility Model Content

[0004] The purpose of this application is to provide a packaged cable that can maintain normal operation for a certain period of time when it is in a fire, giving workers time to take emergency measures and thus reducing or avoiding losses caused by fire.

[0005] Therefore, in a first aspect, embodiments of this application provide an encapsulated cable, comprising: at least one cable body; a fireproof layer disposed on the outer periphery of the at least one cable body; and an encapsulation layer disposed on the outer periphery of the fireproof layer.

[0006] In one possible implementation, the fireproof layer is made of a ceramic material that can form a heat-insulating ceramic glaze film on its surface when the operating temperature exceeds 350°C.

[0007] In one possible implementation, the thickness of the fireproof layer is 0.6mm-1.4mm.

[0008] In one possible implementation, reinforcing ribs are provided inside the fireproof layer along the extension direction of the encapsulated cable.

[0009] In one possible implementation, an identification portion is provided on the outer surface of the encapsulation layer near the reinforcing rib.

[0010] In one possible implementation, the identification part is a groove provided on the outer surface of the encapsulation layer, and the groove is provided along the extension direction of the encapsulation cable.

[0011] In one possible implementation, the cross-section of the encapsulated cable is one of square, rectangular, circular, or a circle with multiple overlapping parts.

[0012] In one possible implementation, the cable body includes a metal tube; and / or the cable body includes a metal tube, and at least one of a cable, an optical fiber, and a transmission tube is disposed inside the metal tube.

[0013] In one possible implementation, the cable includes an insulation layer and a conductor disposed within the insulation layer. The insulation layer is made of fluoroplastic material, and the cable body also includes a filler layer disposed between the insulation layer and the metal tube.

[0014] In one possible implementation, an identification portion is provided on the outer surface of the encapsulation layer, and the identification portion is located adjacent to the cable.

[0015] According to the encapsulated cable provided in the embodiments of this application, the encapsulated cable has a fireproof layer between the encapsulation layer and the cable body. The fireproof layer improves the overall fire resistance of the encapsulated cable. When encountering a fire, it can still maintain normal operation for a certain period of time, giving the staff time to take emergency measures, thereby reducing or avoiding losses caused by fire. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0019] Figure 1 This diagram shows a cross-sectional view of a packaged cable according to an embodiment of this application.

[0020] Figure 2 This diagram shows a cross-sectional view of another type of encapsulated cable provided in an embodiment of this application.

[0021] Figure 3 Show Figure 2 The diagram shows a structure of a packaged cable with grooves provided on the packaging layer.

[0022] Figure 4This diagram shows a cross-sectional view of a single cable encapsulation tube provided in an embodiment of this application.

[0023] Figure 5 This diagram shows a cross-sectional view of an optical fiber and transmission tube encapsulation cable provided in an embodiment of this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Cable body; 11. Cable; 111. Insulation layer; 112. Conductor; 12. Optical fiber; 13. Transmission pipe; 14. Metal pipe; 15. Filler layer;

[0026] 2. Fireproof layer;

[0027] 3. Encapsulation layer; 31. Identification unit; 32. Marking unit;

[0028] 4. Reinforcing ribs. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of this application. To simplify the disclosure of the embodiments of this application, components and arrangements of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of this application. Furthermore, reference numerals and / or letters may be repeated in different examples of the embodiments of this application. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0031] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0032] To address the problems in the prior art, this application provides an encapsulated cable that can maintain normal operation for a certain period of time when exposed to fire, allowing workers time to take emergency measures and thus reducing or avoiding losses caused by fire.

[0033] like Figure 1-5 As shown, this application provides an encapsulated cable, including: at least one cable body 1; a fireproof layer 2 disposed on the outer periphery of the at least one cable body 1; and an encapsulation layer 3 disposed on the outer periphery of the fireproof layer 2.

[0034] In this application, the encapsulated cable adopts a three-layer structure design: cable body 1, fireproof layer 2, and encapsulation layer 3. The fireproof layer 2 completely encapsulates the cable body 1, providing all-around protection, while the encapsulation layer 3 protects the fireproof layer 2 and improves overall durability. By setting the fireproof layer 2 between the encapsulation layer 3 and the cable body 1, the fireproof layer 2 improves the overall fire resistance of the encapsulated cable. In the event of a fire, it can still maintain normal operation for a certain period of time, allowing personnel time to take emergency measures, thereby reducing or avoiding losses caused by fire.

[0035] Specifically, the cable body 1 includes various types of cables 11, optical fibers 12, or transmission pipes 13.

[0036] In related technologies, encapsulated cables combine a cable 11, an optical fiber 12, and a transmission tube 13 into a single unit. Currently, the encapsulation layer 3 is used to fix the cable 11, optical fiber 12, and transmission tube 13 together. Some cables 11 have a fire-resistant layer 2, providing a certain degree of fire resistance. However, the outer side of the optical fiber 12 and transmission tube 13 is directly encapsulated by the layer 3, which is made of thermoplastic material. This layer primarily serves to fix the cable 11, optical fiber 12, and transmission tube 13 and provides some resistance to corrosion, wear, and impact. In the event of a fire, the encapsulation layer 3 will be quickly destroyed, causing the optical fiber 12 and transmission tube 13 to lose their normal operating capabilities. This prevents workers from taking timely action before the light and transmission tube 13 are damaged, resulting in losses. Furthermore, current encapsulated cables are also susceptible to damage to the encapsulation layer 3 under high-temperature environments, further affecting the normal operating capabilities of the internal optical fiber 12 and transmission tube 13, making them unsuitable for long-term use in high-temperature environments.

[0037] In this embodiment, by providing a fireproof layer 2 inside the encapsulation layer 3, the fireproof layer 2 completely surrounds the cable body 1, effectively protecting the light and the transmission pipe 13, and improving the high-temperature resistance and fire resistance of the entire encapsulated cable. Not only can it be used for extended periods in high-temperature environments, but in the event of a fire, the fireproof layer 2 also effectively protects the internal cable body, effectively responding to fire emergencies, extending the time before the cable body is damaged, and thus providing workers with more time to take remedial measures, reducing or even preventing losses caused by fire.

[0038] The encapsulation layer 3 uses a fluoroplastic structure, giving the cable corrosion resistance, high temperature resistance, wear resistance, and tensile strength. The encapsulation layer 3 adopts a layered structure, with the outer layer thickness set at 1.0mm to 1.4mm and the inner layer thickness at 0.6mm to 1.3mm, reducing the risk of cracking under the action of plastic internal stress and improving the protection function of the internal cable.

[0039] In some embodiments, the fireproof layer 2 is made of a ceramic material that can form a heat-insulating ceramic glaze film on its surface when the operating temperature exceeds 350°C.

[0040] In this application, the fireproof layer 2 uses a ceramicized material with a specific formula. The protective function is achieved through the phase change of the material. The ceramic enamel film formation process does not affect the normal function of the pipeline. It is temperature sensitive and can automatically form a protective layer at high temperatures. The 350℃ trigger point is suitable for oilfield operating environments. The ceramic enamel film has excellent heat insulation performance. The material has a self-protection function and does not require manual intervention.

[0041] Specifically, the composition of fireproof layer 2 is as follows: 25-30 parts of polyethylene, 60-70 parts of ethylene-vinyl acetate copolymer, 10-20 parts of EVM copolymer, 8-15 parts of calcium pyrophosphate, 1-5 parts of ultra-high molecular weight polysiloxane, 10-16 parts of mica, 5-8 parts of talc, 6-9 parts of spodumene, 10-12 parts of potassium feldspar, 10-18 parts of melamine cyanurate, 6-16 parts of azodicarbonamide, 4-6 parts of sodium peroxide, 2-4 parts of mineral oil, and 5-15 parts of vegetable oil. When the working temperature of the cable is between 350℃ and 2000℃, a hard ceramic enamel film will gradually form on the surface of the ceramicized material, with a bending strength of 0.3MPa to 9MPa. The mass retention of the hard ceramicized residue after combustion can reach 80% to 85%, and the dimensional change rate is 1% to 7%. It has the effects of fire resistance, fire blocking, heat insulation, heat preservation, and insulation, and can maintain normal operation for a certain period of time even under combustion conditions.

[0042] In some embodiments, the thickness of the fireproof layer 2 is 0.6mm-1.4mm.

[0043] In this application, the uniformity of the fireproof layer 2 thickness is ensured through precise control of the coating process, taking into account the tolerance requirements in practical applications. The thickness of the fireproof layer 2 is optimized to guarantee the protective effect, control the overall weight and flexibility, and achieve moderate material usage, making the cost controllable and facilitating engineering implementation and installation.

[0044] In some embodiments, a reinforcing rib 4 is provided inside the fireproof layer 2 along the extension direction of the encapsulated cable.

[0045] In this application, the reinforcing rib 4 is embedded inside the fireproof layer 2, extending along the axial direction of the cable, and is made of metal wire, thread, or tape. This improves the mechanical strength and tensile properties of the cable, facilitates traction and laying during construction, prevents deformation or damage to the cable during use, and can serve as an identification mark for the structural location.

[0046] Alternatively, the reinforcing rib 4 may also employ a woven mesh tensile structure or use composite material reinforcing fibers.

[0047] In some embodiments, an identification portion 31 is provided on the outer surface of the encapsulation layer 3 adjacent to the reinforcing rib 4.

[0048] In this application, the identification part 31 corresponds to the position of the reinforcing rib 4 and forms an identifiable mark on the surface of the encapsulation layer 3 to ensure the durability and clarity of the mark, facilitate quick external positioning of the reinforcing rib 4, help with the installation and maintenance of the cable, provide visual or tactile position identification, and reduce the possibility of construction errors.

[0049] Optionally, the identification unit 31 may use raised identification marks, or other marking methods such as color strips.

[0050] In some embodiments, the identification part 31 is a groove provided on the outer surface of the encapsulation layer 3, and the groove is provided along the extension direction of the encapsulation cable.

[0051] In this application, the groove design is easy to identify and locate, does not affect the overall shape of the cable, has good durability, is easy to identify by touch, is suitable for dark operation, the groove corresponds precisely to the position of the reinforcing rib 4, the groove depth is moderate and does not affect the strength, and it is set continuously along the axial direction for easy tracking.

[0052] Furthermore, by setting the identification part 31 as a groove that extends along the axis of the encapsulation cable, it is convenient to quickly locate the reinforcing rib 4 at any position on the encapsulation cable. Then, by pulling the reinforcing rib 4 in a direction away from the cable body along the radial direction of the encapsulation cable, a crack can be made in the encapsulation layer 3, making it convenient to remove the encapsulation layer 3.

[0053] Specifically, the groove can be designed as a discontinuous groove or a continuous groove.

[0054] In some embodiments, the cross-section of the encapsulated cable is one of square, rectangular, circular, or a circle with multiple overlapping parts.

[0055] In this application, a suitable cross section is selected according to actual needs to ensure the structural integrity of each layer. Considering the feasibility of the production process, a variety of cross section shapes are provided to adapt to different installation space requirements, facilitate the parallel arrangement of multiple cables, and improve space utilization.

[0056] Preferably, the cross-section of the encapsulated cable adopts multiple overlapping circular parts to form a gourd shape, which can reduce its weight by 20%-25%, save costs, and reduce the frictional resistance encountered during construction, making construction and wiring more convenient.

[0057] Specifically, the cross-section of the encapsulated cable is a sectional plane along the radial direction of the encapsulated cable. The cross-sectional shape of the encapsulated cable can be set to square (e.g., ...) depending on the number of cable bodies inside the encapsulated cable. Figure 4 (as shown) or rectangle (such as) Figure 2 , 3 As shown in Figure 5), it can also be configured as a triangle (the lines connecting the central axes of the three cable bodies form an equilateral triangle), allowing the encapsulation layer to effectively wrap the cable body. Alternatively, the outer circumference of the encapsulated cable can be configured as a smooth arc-shaped structure to form a shape similar to... Figure 1 The gourd shape shown.

[0058] Alternatively, the cross-section of the encapsulated cable can also be elliptical or a composite cross-section.

[0059] In some embodiments, the cable body 1 includes a metal tube; and / or the cable body 1 includes a metal tube 14, wherein at least one of a cable 11, an optical fiber 12, and a transmission tube 13 is disposed inside the metal tube.

[0060] In this application, any one type can be used alone or in combination with other types. It can be flexibly configured according to actual needs, providing a variety of function options and combinations to meet the usage requirements of different working conditions, realize multi-functional transmission of power, signals and materials, and improve system integration.

[0061] Specifically, the cable body can consist only of a metal tube 14 for conveying specific materials, or a cable 11, optical fiber 12, or conveying pipe 13 can be installed inside the metal tube 14. In this case, the metal tube 14 can provide additional mechanical protection and enhance electromagnetic shielding. The conveying pipe 13 is used to convey other materials.

[0062] In this application, the metal tube 14 completely covers the internal components, and appropriate materials and wall thickness are selected to ensure the insulation and protection of the internal components, provide additional mechanical protection, enhance the electromagnetic shielding effect, improve the overall strength and stability, and facilitate installation and fixing.

[0063] Specifically, the metal tube 14 can be a composite metal tube 14, or a metal tube 14 with a special cross-section can be designed.

[0064] Among them, the metal pipe 14 can be a bare pipe, or a non-metallic material of a different color can be extruded or sprayed on the outer layer of the bare pipe to increase the protection of the pipe in terms of corrosion resistance and wear resistance, and can also be used to distinguish different pipes.

[0065] Specifically, when the cable body 1 is a cable 11, a non-metallic filler layer 15 can be filled between the metal tube 14 and the cable 11. The cable 11 includes an insulation layer 111 and a conductor 112. The insulation layer 111 is a fluoroplastic insulation layer 111 disposed within the filler layer 15, which has high temperature resistance and corrosion resistance. The conductor 112 is disposed within the insulation layer 111. The conductor 112 is a metal conductor 112 or a plated metal conductor 112. The conductor 112 can be a single-core structure or a multi-core structure.

[0066] In one specific embodiment, one of the following can be provided in each metal tube 14: cable 11, optical fiber 12 and transmission tube 13; or two or three of the following can be provided in each metal tube 14: cable 11, optical fiber 12 and transmission tube 13.

[0067] In some embodiments, an identification portion 32 is provided on the outer surface of the encapsulation layer 3, and the identification portion 32 is disposed adjacent to the cable 11.

[0068] In this application, the marking part 32 corresponds to the position of the cable 11 and adopts a clear and durable marking method, which facilitates external identification and positioning, makes it easy to identify the position of the cable 11, improves installation and maintenance efficiency, reduces the risk of operational errors, and facilitates daily inspection and maintenance.

[0069] Specifically, the marking portion 32 in this application uses a distinctive color, has a width of 3mm-5mm, and a depth of 1.2mm-2.0mm, in order to prevent the marking portion 32 from becoming blurred or disappearing due to wear on the surface of the encapsulation layer 3 later.

[0070] Alternatively, the marking section 32 may use a colored stripe or raised or recessed markings.

[0071] The encapsulated cable improves the overall fire resistance of the encapsulated cable by setting a fireproof layer 2 between the encapsulation layer 3 and the cable body 1. In the event of a fire, it can still maintain normal operation for a certain period of time, giving staff time to take emergency measures and thus reducing or avoiding losses caused by fire.

[0072] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0073] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0074] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A type of encapsulated cable, characterized in that, include: At least one cable body (1); A fireproof layer (2) is disposed on the outer periphery of the at least one cable body (1); as well as An encapsulation layer (3) is disposed on the outer periphery of the fireproof layer (2).

2. The encapsulated cable according to claim 1, characterized in that, The fireproof layer (2) is made of a ceramic material that can form a heat-insulating ceramic glaze film on its surface when the working temperature exceeds 350°C.

3. The encapsulated cable according to claim 1 or 2, characterized in that, The thickness of the fireproof layer (2) is 0.6mm-1.4mm.

4. The encapsulated cable according to claim 1, characterized in that, The fireproof layer (2) is provided with reinforcing ribs (4) along the extension direction of the encapsulated cable.

5. The encapsulated cable according to claim 4, characterized in that, An identification part (31) is provided on the outer surface of the encapsulation layer (3) adjacent to the reinforcing rib (4).

6. The encapsulated cable according to claim 5, characterized in that, The identification part (31) is a groove provided on the outer surface of the encapsulation layer (3), and the groove is provided along the extension direction of the encapsulation cable.

7. The encapsulated cable according to claim 1, characterized in that, The cross-section of the encapsulated cable is one of square, rectangular, circular, or a circle with multiple overlapping parts.

8. The encapsulated cable according to claim 1, characterized in that, The cable body (1) includes a metal tube (14); and / or The cable body (1) includes a metal tube (14), and at least one of a cable (11), an optical fiber (12), and a transmission tube (13) is disposed inside the metal tube (14).

9. The encapsulated cable according to claim 8, characterized in that, The cable (11) includes an insulation layer (111) and a conductor (112) disposed within the insulation layer (111). The insulation layer (111) is made of fluoroplastic material. The cable body (1) also includes a filler layer (15) disposed between the insulation layer (111) and the metal tube (14).

10. The encapsulated cable according to claim 8, characterized in that, The outer surface of the encapsulation layer (3) is provided with a marking portion (32), which is located adjacent to the cable (11).

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