Sectional power supply armored heating pipe cable

Abstract

The utility model provides a segmented power supply armored heating pipe cable, which is formed by sequentially connecting a plurality of sections of heating parts, and each section of heating part comprises a battery cell distributed at the innermost layer of the heating part; the transverse insulating layer is tightly wrapped on the outer wall of the battery cell; the heating inner armor tightly wraps the outer wall of the transverse insulating layer; the backflow connecting part is arranged at one end of the heating part and is connected with the battery cell and the heating inner armor; the longitudinal insulating layer is arranged at one end, far away from the backflow connecting part, of the heating part; the power transmission layer is tightly attached to the outer layer of the heating inner armor; the electric core and the heating inner armor are both connected with the electric lead, and the electric lead penetrates through the longitudinal insulating layer and the power transmission layer to be connected to a control system. The segmented power supply armored heating pipe cable solves the problems that the existing equipment cannot adjust the power in a segmented manner and cannot flexibly distribute the power according to use requirements, and has the advantages that the power of one pipe cable can be randomly adjusted in a segmented manner, and the heating power can be more scientifically and flexibly distributed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of heat tracing cable, especially segmental power supply armoured heating cable. BACKGROUND

[0002] Electric heat tracing is to use electric heat energy to compensate the heat lost by the heat traced body in the process, so as to maintain the most reasonable process temperature of the flowing medium. Electric heat tracing is to uniformly release heat along the length direction of the pipeline, which is different from the electric heat tracing with high heat load concentrated in a point or a small area. Electric heat tracing has small temperature gradient, long heat stable time, is suitable for long-term use, and the required heat is much lower than that of electric heating. Electric heat tracing has the advantages of high heat efficiency, energy saving, simple design, convenient installation, no pollution, long service life and the like, is the technical development direction to replace steam and hot water heat tracing, and is the national key energy-saving project.

[0003] Electric heat tracing products can be widely used in the heat tracing and heat preservation, freezing prevention and condensation prevention of pipelines, pump bodies, valves, tanks and tank volumes in the petroleum, chemical, electric power, pharmaceutical, mechanical, food and ship industries, and are the most advanced and effective method to maintain the process temperature of liquid conveying pipelines and liquid medium storage tanks. The existing heat tracing equipment usually adopts constant power heating, and the heating power on the same cable is the same. However, in the process of oil exploitation, different strata have different requirements for heating power and temperature. The constant power heating equipment obviously cannot well meet such requirements. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a segmental power supply armoured heating cable, which overcomes the above technical problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0006] The segmental power supply armoured heating cable is connected by a plurality of heating portions in sequence, and each heating portion comprises:

[0007] The electric core is distributed in the innermost layer of the heating portion.

[0008] The transverse insulation layer is tightly wrapped on the outer wall of the electric core and is made of insulating material.

[0009] The heating inner armour is tightly wrapped on the outer wall of the transverse insulation layer.

[0010] The return flow connecting portion is arranged at one end of the heating portion and connects the electric core and the heating inner armour.

[0011] The longitudinal insulation layer is arranged at the end of the heating portion away from the return flow connecting portion and is made of insulating material.

[0012] The power transmission layer is arranged on the outer layer of the heating inner armour.

[0013] The conductive wire, the electric core and the heating inner armor are connected with the conductive wire, and the conductive wire is connected to the power supply control system through the longitudinal insulation layer and the power transmission layer.

[0014] Further, the outer layer of the plurality of heating parts is wrapped with a protective outer armor.

[0015] Further, the power transmission layer is designed to be hollow, and the conductive wire can pass through the power transmission layer.

[0016] Further, the electric core is designed to be single.

[0017] Further, the electric core is designed to be multiple.

[0018] Further, the electric core adopts a bare conductor.

[0019] Further, the material of the protective outer armor includes but is not limited to carbon steel.

[0020] Further, the material of the heating inner armor includes but is not limited to carbon steel.

[0021] Further, the thickness of the heating inner armor is 0.5-7mm.

[0022] Further, each heating part is connected to a different power supply control system.

[0023] The segmented power supply armored heating pipe cable has the advantages of multiple power heating of one pipe cable, scientific and reasonable power distribution, and high heating efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings accompanying the specification provide further understanding of the present application, the illustrative embodiments of the present application and the explanations thereof serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0025] Fig. 1 It is a longitudinal sectional structure schematic diagram of the segmented power supply armored heating pipe cable of the present application.

[0026] Fig. 2 It is a longitudinal sectional structure schematic diagram of the segmented power supply armored heating pipe cable of the present application.

[0027] Among them, the above drawings include the following reference signs:

[0028] 1, electric core; 2, transverse insulation layer; 3, heating inner armor; 4, backflow connection part; 5, longitudinal insulation layer; 6, power transmission layer; 7, conductive wire; 8, protective outer armor. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is merely illustrative in nature and in no way should be taken as a limitation of the present application and its application or uses. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0030] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that the terms "comprise" and / or "include" as used in the specification indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Unless specifically stated otherwise, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in the various embodiments described herein are not meant to limit the scope of the present application. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn to scale for the sake of convenience of description. Techniques, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0032] The following description will be made with reference to the drawings Figs. 1-2 Further description of the present application:

[0033] The segmented power supply armored heating cable is connected by a plurality of heating sections in sequence, and each heating section comprises:

[0034] The electric core 1 is distributed in the innermost layer of the heating section;

[0035] The transverse insulation layer 2 is tightly wrapped around the outer wall of the electric core 1;

[0036] The heating inner armor 3 is tightly wrapped around the outer wall of the transverse insulation layer 2;

[0037] The reflow connection part 4 is arranged at one end of the heating part, connecting the battery cell 1 and the heating inner armor 3.

[0038] The longitudinal insulation layer 5 is arranged at the end of the heating part away from the reflow connection part 4, and is made of an insulating material.

[0039] The power transmission layer 6 is arranged close to the outer layer of the heating inner armor 3.

[0040] The conductive wire 7 is connected to the battery cell 1 and the heating inner armor 3, and passes through the longitudinal insulation layer 5 and the power transmission layer 6 to be connected to the power supply control system.

[0041] In this embodiment, each heating part is connected to a different power supply control system.

[0042] In an alternative embodiment, the power supply control system uses a KTM system to achieve temperature and heating power control.

[0043] This design can achieve variable power heating of crude oil, natural gas, etc. in the production pipe and the oil pipeline, with a maximum heating efficiency of 150 W / m, 300 W / m, 600 W / m, etc. Correspondingly, the maximum heating temperature can reach 130℃, 250℃, 400℃, etc. and can achieve stepless power regulation from 0W to maximum power.

[0044] Different power supply control systems can control the heating power of different heating parts, achieving independent power adjustment of different sections of the pipe cable and achieving a more ideal heating power at the corresponding position, thereby improving the heating efficiency in the oil extraction process.

[0045] In this embodiment, the outer layer of the multiple heating parts is wrapped with a protective outer armor 8. The material of the protective outer armor 8 includes but is not limited to carbon steel as selected in this embodiment, and can also be selected from materials such as stainless steel.

[0046] In this embodiment, the power transmission layer 6 is designed as hollow, allowing the conductive wire 7 to pass through.

[0047] The hollow design provides space for the wire 7 to pass through the power transmission layer 6, and the wires 7 connected to the battery cell 1 and the heating inner armor 3 of each part are connected to the corresponding power control system through the power transmission layer 6.

[0048] In this embodiment, the battery cell 1 is designed as a single wire.

[0049] In an alternative embodiment, the battery cell 1 is made of multiple twisted wires.

[0050] The single or multiple twisted wire design of the battery cell 1 can be selected according to actual operation needs.

[0051] In the embodiment, the bare conductor is used as the cell 1, and round single wire, flat wire, steel strand, aluminum strand and the like can be selected according to requirements.

[0052] In the embodiment, the material of the carbon steel heating inner armor 3 includes but is not limited to carbon steel, and the thickness of the heating inner armor 3 is 0.5-7mm.

[0053] The size of the pipe cable structure can be selected according to the use scene, and in addition, the shape can be changed, such as being combined with a circle, a square, a flat shape, a special shape and the like.

[0054] In the description of the utility model, it is understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and in the absence of the opposite description, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the utility model; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0055] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and the utility model can be changed and varied for the person skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A segmented power armored heating pipe cable, characterized in that, A plurality of heating sections are connected in sequence, each of the heating sections comprises: a plurality of electric cores (1) distributed in the innermost layer of the heating section; a transverse insulation layer (2) made of insulating material, tightly wrapped around the outer wall of the electric core (1); a heating inner armor (3) tightly wrapped around the outer wall of the transverse insulation layer (2); a reflow connection section (4) provided at one end of the heating section, connecting the electric core (1) and the heating inner armor (3); a longitudinal insulation layer (5) made of insulating material, provided at the end of the heating section away from the reflow connection section (4); a power transmission layer (6) provided close to the outer layer of the heating inner armor (3); a plurality of conductive wires (7) connected to the electric core (1) and the heating inner armor (3), the conductive wires (7) pass through the longitudinal insulation layer (5) and the power transmission layer (6) and are connected to the power supply control system.

2. The segmented power armored heating pipe cable of claim 1, wherein, The outer layer of the plurality of heating sections is wrapped with a protective outer armor (8).

3. The segmented power armored heating pipe cable of claim 1, wherein, The power transmission layer (6) is designed as hollow, allowing the conductive wires (7) to pass through.

4. The segmented power armored heating pipe cable of claim 1, wherein, The electric core (1) is designed as single.

5. The segmented power armored heating pipe cable of claim 1, wherein, The electric core (1) is designed as multiple twisted.

6. The sectionally powered armoured heating pipe cable according to claim 4 or 5, characterised in that, The electric core (1) is made of bare conductor.

7. The segmented power armored heating pipe cable of claim 1, wherein, The thickness of the heating inner armor (3) is 0.5-7mm.

8. The segmented power armored heating pipe cable of claim 1, wherein, Each of the heating sections is connected to a different power supply control system.

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