Power supply slide wire heat tracing device
By installing a heat tracing device with a closed air duct and a reverse fan inside the power supply sliding contact line, the problem of ice and snow on the sliding contact line was solved, ensuring production stability, reducing costs, and extending equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-03-06
AI Technical Summary
The existing power supply sliding contact line is prone to ice formation in rainy and snowy weather, leading to vehicle power outages and equipment failures. Existing snow removal and de-icing methods are inconvenient to operate, costly, and ineffective, affecting production efficiency.
Design a power supply sliding contact line heat tracing device, which uses a heat tracing cable in a closed air duct and a reverse fan to form a circulating air duct, evenly distribute heat, avoid ice and snow formation, and reduce power consumption.
It achieves convenient and efficient snow and ice removal, reduces labor and material costs, ensures production stability, extends the service life of the heating cable, and avoids equipment short circuits and grounding.
Smart Images
Figure CN223978770U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rigid sliding contact line technology, and in particular to a heat tracing device for power supply sliding contact lines. Background Technology
[0002] Currently, most coking and chemical enterprises in China experience frequent electrical accidents such as power outages and phase loss in their locomotives during late autumn and winter, especially when it rains, snows, or when there are large temperature differences between day and night. The main reason is that the existing locomotive power supply in the workshops generally uses a rigid sliding contact line. When rain or snow falls on the rigid sliding contact line, the temperature difference easily causes a layer of ice to form on the contact surface between the sliding contact line and the current collector. When the vehicle travels to the ice surface, power outages, flashovers, and phase loss occur, causing equipment such as the traveling frequency converter, air compressor, and motor inside the vehicle to malfunction and stop operating, which seriously restricts the normal production of the workshop.
[0003] Currently, to address the aforementioned issues, coking and chemical enterprises primarily employ the following methods and measures for snow and ice removal from power supply contact lines: steam tracing, gas ignition heating, and manual de-icing (snow removal). While these methods can remove snow and ice from power supply contact lines, they still have the following shortcomings in actual use: they are extremely inconvenient for workers to operate, consume significant manpower and resources, are costly, and the snow and ice removal effect is generally poor, making it difficult to effectively guarantee normal production and greatly reducing production efficiency. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of existing technologies, such as cumbersome operation, high cost, and poor snow and ice removal effect, and to provide a power supply sliding contact line heat tracing device. It has a reasonable design, simple structure, is easy to assemble and use, and has a good snow and ice removal effect. It can not only effectively save manpower and material resources, but also ensure normal production, and is suitable for promotion.
[0005] This utility model is achieved through the following technical solution:
[0006] A power supply sliding contact line heat tracing device includes a rigid sliding contact line. A closed air duct is correspondingly arranged inside the I-shaped groove of the rigid sliding contact line, and a heat tracing cable is arranged inside the air duct. The height and length of the heat tracing cable are less than the height and length of the air duct, and the heat tracing cable is centrally located inside the air duct. This allows an upper air duct to be formed between the top side of the heat tracing cable and the top side of the air duct, and a lower air duct to be formed between the bottom side of the heat tracing cable and the bottom side of the air duct. The upper and lower air ducts are interconnected, thus forming a circulating air duct inside the air duct that surrounds the outside of the heat tracing cable. Fans are installed inside both the upper and lower air ducts, and the two fans are arranged in opposite directions, i.e., the airflow directions of the two fans are opposite, thereby enabling air circulation within the circulating air duct.
[0007] Further improvements to this utility model include that the air duct is a channel steel with closed ends, the opening of the air duct faces the I-shaped groove, and the air duct is fastened inside the I-shaped groove; a positioning mechanism that can fix the position of the air duct is provided on the outside of the air duct, and the positioning mechanism is fixed to the bottom of the rigid sliding contact line.
[0008] A further improvement of this utility model is that the positioning mechanism includes a base, which is fixed to the bottom of the rigid sliding contact line. The base is connected to a baffle located on the outside of the air duct. A through positioning bolt is screwed onto the baffle. The bolt of the positioning bolt can press against the air duct, thereby fixing the position of the air duct.
[0009] A further improvement of this utility model is that the inner surface of the air duct is covered with a heat insulation layer.
[0010] A further improvement of this utility model is that the heat tracing cable is fixed inside the I-shaped groove by double-sided adhesive.
[0011] A further improvement of this invention is that the two fans are positioned correspondingly and are arranged in the center.
[0012] As can be seen from the above technical solutions, the beneficial effects of this utility model are:
[0013] 1. This device is reasonably designed, has a simple overall structure, is easy to assemble and use, saves manpower and material resources, and has a low cost.
[0014] 2. Through the design of the heat tracing cable, this device can effectively solve the problem of ice or snow accumulation on the sliding contact line caused by steam or rain and snow generated during coke quenching. It avoids equipment problems caused by ice and snow accumulation on the surface of the rigid sliding contact line. In addition, the heat tracing cable is a medium-temperature heat tracing cable with low power consumption and good economic benefits.
[0015] 3. Through the design of the air duct, this device ensures that the heat emitted by the heat tracing cable is more evenly distributed within the air duct, thus guaranteeing heat utilization, extending the service life of the heat tracing cable, and significantly improving the removal of fog and water droplets from the sides of the rigid sliding contact line. This avoids short circuits and grounding of the heat tracing cable caused by fog and water droplets, providing a guarantee for stable production. Attached Figure Description
[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.
[0018] Figure 2 yes Figure 1 A magnified view of part A in the middle.
[0019] Figure 3 This is a schematic diagram of the structure of the circulating air duct in a specific embodiment of this utility model.
[0020] 1. Rigid conductor rail; 2. Air duct; 3. Heating tape; 4. Fan; 5. Base; 6. Baffle; 7. Positioning bolts; 8. Insulation layer; 9. Double-sided adhesive tape; 10. Upper air duct; 11. Lower air duct. Detailed Implementation
[0021] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.
[0022] Please refer to the attached document. Figure 1-3 The following is a description of a specific embodiment: The power supply sliding contact line heat tracing device of this utility model includes a rigid sliding contact line 1. According to actual needs, the rigid sliding contact line 1 adopts a lightweight rigid sliding contact line. The length of each rigid sliding contact line 1 is 6 meters. A closed air duct 2 is correspondingly provided inside the I-shaped groove of the rigid sliding contact line 1.
[0023] Specifically, the air duct 2 is a channel steel with closed ends, the opening of the air duct 2 faces the I-shaped groove, and the air duct 2 is fastened inside the I-shaped groove; a positioning mechanism that can fix the position of the air duct 2 is provided on the outside of the air duct 2, and the positioning mechanism is fixed to the bottom of the rigid body sliding contact line 1.
[0024] Specifically, the positioning mechanism includes a base 5. Depending on the actual needs, multiple bases 5 are used. The bases 5 are fixed to the bottom of the rigid sliding contact line 1, and one is welded every 50 centimeters. The multiple bases 5 are welded together with a baffle 6 located on the outside of the air duct 2. A through positioning bolt 7 is screwed onto the baffle 6. The bolt of the positioning bolt 7 can press against the air duct 2, thereby fixing the position of the air duct 2.
[0025] The air duct 2 is equipped with a heat tracing cable 3. The height and length of the heat tracing cable 3 are less than the height and length of the air duct 2. The heat tracing cable 3 is centrally located inside the air duct 2, so that an upper air duct 10 can be formed between the top side of the heat tracing cable 3 and the top side of the air duct 2, and a lower air duct 11 can be formed between the bottom side of the heat tracing cable 3 and the bottom side of the air duct 2. The upper air duct 10 and the lower air duct 11 are interconnected, thereby forming a circulating air duct inside the air duct 2 that can surround the outside of the heat tracing cable 3.
[0026] Fans 4 are installed inside both the upper air duct 10 and the lower air duct 11. The two fans 4 are arranged in opposite directions, that is, the airflow of the two fans 4 is opposite, so that the air inside the circulating air duct can be circulated.
[0027] The working principle of this utility model:
[0028] When in use, the heat tracing cable 3 is turned on. The heat generated by the heat tracing cable 3 can effectively solve the problem of ice or snow accumulation on the rigid contact line 1 caused by steam or rain and snow generated during coke quenching. This avoids equipment problems caused by ice and snow accumulation on the surface of the rigid contact line 1. Furthermore, the heat tracing cable 3 is a medium-temperature heat tracing cable with low power consumption and good economic benefits. At the same time, the air duct 2 and the fan 4 work together to make the heat emitted by the heat tracing cable 3 more evenly distributed within the air duct 2, ensuring heat utilization, extending the service life of the heat tracing cable 3, and significantly improving the removal of fog and water droplets on the side of the rigid contact line 1. This avoids short circuits and grounding of the heat tracing cable 3 caused by fog and water droplets, providing a guarantee for stable production.
[0029] In one embodiment, the inner surface of the air duct 2 is covered with an insulation layer 8. The design of the insulation layer 8 reduces heat loss.
[0030] In one embodiment, the heat tracing tape 3 is fixed to the inside of the I-shaped groove by double-sided adhesive tape 9.
[0031] In one embodiment, the two fans 4 are positioned correspondingly and centrally. This design is quite reasonable and facilitates better air circulation within the circulating air duct.
[0032] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0033] The terms "upper," "lower," "outer," "inner," etc., used in the specification, claims, and accompanying drawings of this utility model, are used to distinguish relative positional relationships and are not necessarily qualitative. It should be understood that such data can be interchanged where appropriate so that embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.
[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. 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 the present invention. Therefore, the present invention 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 disclosed herein.
Claims
1. A power supply sliding contact line tracing device, comprising a rigid sliding contact line (1), characterized in that, The closed air duct (2) is arranged in the I-shaped recess of the rigid slide contact line (1), and the heating band (3) is arranged in the air duct (2); the height and length of the heating band (3) are less than those of the air duct (2), and the heating band (3) is arranged in the air duct (2) in the middle, so that an upper air duct (10) is formed between the top side of the heating band (3) and the top side of the air duct (2), and a lower air duct (11) is formed between the bottom side of the heating band (3) and the bottom side of the air duct (2), and the upper air duct (10) and the lower air duct (11) are communicated with each other, so that a circulating air duct is formed in the air duct (2) and can surround the outer side of the heating band (3); the air fan (4) is arranged in the upper air duct (10) and the lower air duct (11), and the two air fans (4) are arranged in opposite directions, so that the air in the circulating air duct can circulate and flow.
2. A power supply slide wire trace heat tracing apparatus according to claim 1, wherein, The air duct (2) is a channel steel with closed two ends, the opening of the air duct (2) faces the I-shaped recess, and the air duct (2) is buckled in the I-shaped recess; the positioning mechanism capable of fixing the position of the air duct (2) is arranged on the outer side of the air duct (2), and the positioning mechanism is fixed to the bottom of the rigid slide contact line (1).
3. A power supply slide wire trace heat tracing apparatus according to claim 2, wherein, The positioning mechanism comprises a base (5) fixed to the bottom of the rigid slide contact line (1), and the base (5) is connected with the baffle (6) arranged on the outer side of the air duct (2); the baffle (6) is screwed with the penetrating positioning bolt (7), and the shank of the positioning bolt (7) can press the air duct (2), so as to fix the position of the air duct (2).
4. A power supply slide wire trace heat tracing apparatus according to claim 1, wherein, The inner surface of the air duct (2) is coated with a heat preservation layer (8).
5. A power supply slide wire trace heat tracing apparatus according to claim 1, wherein, The heating band (3) is fixed in the I-shaped recess by the double-sided adhesive tape (9).
6. A power supply trackline trace heating apparatus according to claim 1 wherein, The positions of the two air fans (4) are corresponding and arranged in the middle.