Stainless steel composite long-line heat tracing cable

Abstract

The invention relates to the field of heat tracing cables, and discloses a stainless steel composite long-line heat tracing cable which comprises a heat tracing cable body, an insulating layer is arranged in the heat tracing cable body, a conductor is arranged in the insulating layer, a main ring is arranged on the heat tracing cable body, the interior of the main ring is hollow, and a rolling structure is arranged outside the main ring. The stainless steel composite long-line heat tracing cable has the advantages that the stainless steel composite long-line heat tracing cable is provided with the rolling structure, the rolling structure can be matched with the water bag to form a simple obstacle avoidance function, accordingly, the smoothness of the cable penetrating into an oil pipe can be further improved while obstacles can be avoided, the cable can be prevented from being damaged, and the service life of the cable can be prolonged. The rolling structure is provided with a main plate and a movable plate, the movable plate can rotate on the main plate, and when a barrier exists in the front, the movable plate is pressed and then rotates to the position below the barrier through extrusion of the water bag, and the water bag controls the cable to continue to move through continuous force.

Description

Technical Field

[0001] The invention relates to the technical field of heating cables, in particular to a stainless steel composite long-line heating cable. Background Art

[0002] In the patent application with application announcement number CN101030459A, it includes carbon fiber, carbon fiber insulation layer, and outer insulation layer. The carbon fiber is arranged in the carbon fiber insulation layer, and the carbon fiber insulation layer is arranged in the outer insulation layer. A lubricating layer is arranged on the outside of the above-mentioned outer insulation layer. The advantage is that the elongation tension generated by the thermal expansion of the plastic pipe cannot act entirely on the carbon fiber heating cable or the carbon fiber electric heating tape, thereby effectively solving the problem of partial or complete breakage. The present invention achieves the purpose of high safety factor and long service life.

[0003] In the prior art including the above-mentioned patents, the existing long-line heating cables use an insulating layer covered with an aluminum tube protective layer and an FEP sheath. The existing heating cables cannot be directly inserted into oil pipelines for use. For some old buried pipelines, if the entire line is excavated to add electric heating, the construction cost is too high. When the heating cable is inserted and moved in the underground pipeline, if it encounters an obstacle, the top of the cable will be stuck and affected, making it inconvenient to move smoothly. Summary of the Invention

[0004] The problem to be solved by the present invention is that the heating cable cannot reach the other end quickly and smoothly when passing through the oil pipeline, and has no simple and effective obstacle avoidance capability.

[0005] To solve the above technical problems, the technical solution of the present invention is as follows: a stainless steel composite long-line heating cable, comprising a heating cable, an insulating layer provided inside the heating cable, a conductor provided inside the insulating layer, a main ring provided on the heating cable, the interior of the main ring being hollow, a rolling structure provided outside the main ring, a water bag provided on the rolling structure, and a water inlet provided on one side of the top front of the water bag; The rolling structure includes a support plate, which is Y-shaped and fixedly distributed on the outer wall of the main ring in a circular array at equal intervals. A plurality of limiting grooves are evenly spaced on the top of the support plate.

[0006] Preferably, a spring is provided in the limiting groove, a buffer column is fixedly provided on the top of the spring, and a connecting plate is fixedly provided on the top of the buffer column.

[0007] Preferably, a main board is provided on one side of the connecting plate, and movable boards are rotatably provided on the front and back sides of the main board.

[0008] Preferably, a plurality of rolling columns are provided in a straight line on one side of the main board, the rolling columns are adapted to the water bag, and the water bag moves along the rolling columns.

[0009] Preferably, a plurality of connecting plates are fixedly provided on one side of the main ring in a circular array, and a fixing ring is provided on the other side of the connecting plate.

[0010] Preferably, a threaded column is passed through the front and back of the fixing ring, and a knob is provided on the front of the threaded column.

[0011] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) The heating cable is provided with a rolling structure, which can cooperate with the water bag to form a simple obstacle avoidance function, and further increase the smoothness and efficiency of the cable inserted in the oil pipe while avoiding obstacles. The rolling structure is provided with a main board and a movable board, and the movable board can rotate on the main board. When encountering an obstacle in front, the movable board will be squeezed by the water bag and rotate to the position below the obstacle. The water bag can control the heating cable to continue to move by continuous force. When encountering a narrow place, the water bag body can continue to slide back and forth along the gap to form a circular rolling shape. In this way, when encountering a narrow or complex environment, the water bag can automatically find the best way out by squeezing, and the cable can be inserted faster and more conveniently with the rolling characteristics. (2) The water bag can realize the functions of rapid water injection and discharge through the water injection port. The expansion degree of the water bag can be freely controlled according to the actual use needs, which is more suitable for oil pipelines of different sizes. The rolling structure is set on the main ring. The main ring can control the disassembly and installation position of the whole device by cooperating with the knob on the fixed ring. The position can be changed and disassembled and adjusted according to the use needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the water bag structure of the present invention; Figure 3 This is a schematic diagram of the main ring structure of the present invention; Figure 4 This is a schematic diagram of the fixing ring structure of the present invention; Figure 5 It is a left side schematic diagram of the main ring structure of the present invention; Figure 6 This is a schematic diagram of the support plate structure of the present invention; Figure 7 This is a schematic diagram of the internal structure of the support plate of the present invention; Figure 8 This is a schematic diagram of the structure of the connecting plate of the present invention; Figure 9 A schematic diagram of the rotation of the movable plate structure of the present invention; Figure 10 This is a schematic diagram of the rolling column structure of the present invention; Figure 11 This is a schematic diagram of the mainboard structure of the present invention; Figure 12 Schematic diagram of the conductor structure of the present invention.

[0013] In the figure: 1. Heating cable; 2. Fixing ring; 3. Water bag; 4. Rolling structure; 401. Main board; 402. Support plate; 403. Movable plate; 404. Connecting plate; 405. Buffer column; 406. Spring; 407. Rolling column; 5. Water inlet; 6. Knob; 7. Main ring; 8. Connecting plate; 9. Threaded column; 10. Insulation layer; 11. Conductor. DETAILED DESCRIPTION

[0014] To make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0015] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words “including” or “comprising” and the like used in this disclosure mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words “connected” or “connected” and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. “Up”, “down”, “left”, “right” and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0016] like Figures 1 to 12 As shown, the present invention provides a stainless steel composite long-line heating cable, including a heating cable 1, an insulating layer 10 is provided inside the heating cable 1, and the insulating layer 10 is made of 0.5-5mm silicone rubber material. A conductor 11 is provided inside the insulating layer 10, and a main ring 7 is provided on the heating cable 1. The interior of the main ring 7 is hollow, and a rolling structure 4 is provided on the outside of the main ring 7. A water bag 3 is provided on the rolling structure 4, and a water inlet 5 is provided on one side of the top of the front of the water bag 3; The rolling structure 4 includes a support plate 402 , which is Y-shaped and fixedly distributed in a circular array on the outer wall of the main ring 7 at equal intervals. A plurality of limiting grooves are equidistantly formed on the top of the support plate 402 .

[0017] A spring 406 is provided in the limiting groove, a buffer column 405 is fixedly provided on the top of the spring 406 , and a connecting plate 404 is fixedly provided on the top of the buffer column 405 .

[0018] A main board 401 is provided on one side of the connecting plate 404 , and movable boards 403 are rotatably provided on the front and back sides of the main board 401 .

[0019] A plurality of rolling posts 407 are provided in a straight line on one side of the main board 401 . The rolling posts 407 are adapted to the water bladder 3 , and the water bladder 3 moves along the rolling posts 407 .

[0020] A plurality of connecting plates 8 are fixedly provided on one side of the main ring 7 in a circumferential array, and a fixing ring 2 is provided on the other side of the connecting plates 8 .

[0021] Threaded columns 9 are passed through the front and back of the fixing ring 2 , and a knob 6 is provided on the front of the threaded column 9 .

[0022] The working principle and use process of the present invention are as follows: when in use, water is injected into the water bag 3 according to the size of the oil pipe to be inserted. When the gap of the oil pipe is narrow, the water injection amount can be reduced, and when the gap is large, the water injection amount can be increased. When injecting, water can be injected and discharged through the water injection port 5. After the water bag 3 is injected, the top of the heating cable 1 to be inserted can be inserted from the fixed ring 2 until it is inserted into the section that is flush with the main ring 7. After the heating cable 1 is inserted, the knob 6 is rotated, and the knob 6 drives the threaded column 9 to rotate until the threaded column 9 is rotated to clamp the heating cable 1. In this way, the main ring 7 can be fixed to the heating cable 1. After it is fixed, The heating cable 1 is inserted into the oil pipe. When encountering an obstacle after insertion, the movable plate 403 will rotate with the rotating connection with the main plate 401 as the center to avoid the obstacle and allow the heating cable 1 to continue to move forward smoothly. After the water bag 3 is strongly squeezed, the buffer column 405 can be squeezed through the connecting plate 404. The buffer column 405 will compress the spring 406 and shrink a distance into the limit groove to make it more convenient for the water bag 3 to move. When moving, the water bag 3 will form a cyclic reciprocating movement along the rolling column 407. Compared with the directly inserted heating cable 1, the heating cable 1 equipped with the rolling structure 4 can quickly pass through the oil pipe, complete the connection, and speed up the docking efficiency.

[0023] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. A stainless steel composite long-line heating cable, comprising a heating cable (1), characterized in that: The heating cable (1) is provided with an insulating layer (10) inside, and a conductor (11) is provided inside the insulating layer (10). The heating cable (1) is provided with a main ring (7), the inside of the main ring (7) is hollow, and the outside of the main ring (7) is provided with a rolling structure (4), and a water bag (3) is provided on the rolling structure (4). A water inlet (5) is provided on one side of the top of the front of the water bag (3); The rolling structure (4) comprises a support plate (402), the support plate (402) being Y-shaped, the support plates (402) being fixedly distributed in a circumferential array at equal intervals on the outer wall of the main ring (7), and a plurality of limiting grooves being equally spaced on the top of the support plate (402).

2. The stainless steel composite long-line heating cable according to claim 1, characterized in that: A spring (406) is provided in the limiting groove, a buffer column (405) is fixedly provided on the top of the spring (406), and a connecting plate (404) is fixedly provided on the top of the buffer column (405).

3. The stainless steel composite long-line heating cable according to claim 2, characterized in that: A main board (401) is provided on one side of the connecting plate (404), and movable boards (403) are rotatably provided on the front and back sides of the main board (401).

4. The stainless steel composite long-line heating cable according to claim 3, characterized in that: A plurality of rolling columns (407) are provided in a straight line on one side of the main board (401), the rolling columns (407) are adapted to the water bag (3), and the water bag (3) moves along the rolling columns (407).

5. The stainless steel composite long-line heating cable according to claim 1, characterized in that: A plurality of connecting plates (8) are fixedly provided in a circumferential array on one side of the main ring (7), and a fixing ring (2) is provided on the other side of the connecting plate (8).

6. The stainless steel composite long-line heating cable according to claim 5, characterized in that: A threaded column (9) is passed through the front and back of the fixing ring (2), and a knob (6) is provided on the front of the threaded column (9).

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