Valve tower butt joint channel for valve hall maintenance

Abstract

The embodiment of the invention provides a valve tower butt joint channel for valve hall maintenance, comprising: a channel main body comprising a group of telescopic beam frames arranged in parallel, and a pedal arranged between the telescopic beam frames; one end of the suspension assembly is fixedly connected with one end of the telescopic beam frame, and the other end is connected with an operation vehicle guardrail; the supporting piece is fixed to the other end of the telescopic beam frame, and the other end of the supporting piece is connected with a safety ladder arranged on the valve tower. According to the technical scheme provided by the embodiment of the invention, a detachable and adjustable butt joint channel is established between the operating vehicle guardrail of the operating vehicle and the safety ladder of the valve tower; the corresponding pedal is arranged above the telescopic beam frame, and the hanging assembly used for being connected with the operating vehicle guardrail and the supporting piece used for being connected with the safety ladder are arranged at the two ends of the telescopic beam frame respectively, so that a maintainer safely walks between the operating vehicle guardrail and the safety ladder, the safety of the maintainer is guaranteed, and then the maintenance work efficiency is improved.

Description

Technical Field

[0001] This application provides embodiments in the field of high voltage direct current transmission technology, and particularly relates to a valve tower docking channel for valve hall maintenance. Background Technology

[0002] The valve hall, officially known as the converter valve hall, is a core building in high-voltage direct current (HVDC) transmission projects. It houses valve towers and therefore has specific requirements regarding purity, electromagnetic shielding, temperature and humidity control, and safety protection. The valve tower is the physical structure that constitutes the converter valves. It is a large, vertically stacked, tower-like steel structure frame densely equipped with thousands of core power electronic devices (such as thyristors or IGBTs) that perform the conversion of high-voltage direct current (HVDC) to alternating current (AC). Due to its massive size, maintenance of the valve tower often involves working at heights, requiring the use of aerial work platforms, such as valve hall work vehicles. Maintenance personnel must climb the maintenance ladders or platforms on the valve tower by hand to begin their work.

[0003] However, the above-mentioned working method has certain shortcomings in actual operation. First, this method increases the physical burden and psychological pressure on maintenance personnel, and fatigue can easily occur during the process of climbing over guardrails and moving personnel, leading to safety accidents. In addition, the personnel transfer process is cumbersome, time-consuming, and labor-intensive, especially when multiple trips or carrying tools are required, which greatly reduces the efficiency of maintenance work. Summary of the Invention

[0004] This application provides a valve tower docking passage for valve hall maintenance, which can create a safe temporary passage between the valve hall operation vehicle and the valve tower, reducing the risk of maintenance personnel climbing over it and greatly improving the safety and efficiency of maintenance operations.

[0005] In a first aspect, embodiments of this application provide a valve tower docking channel for valve hall maintenance, comprising:

[0006] The main body of the passageway includes a set of parallel retractable beams, with step plates installed between the retractable beams;

[0007] The suspension assembly is fixedly connected at one end to one end of the telescopic beam and at the other end to the guardrail of the work vehicle.

[0008] The support is fixed to the other end of the telescopic beam, and the other end is connected to the safety ladder installed in the valve tower.

[0009] The technical solution provided in this application establishes a detachable and adjustable docking channel between the work vehicle guardrail and the valve tower safety ladder. By configuring corresponding steps above the telescopic beam and configuring suspension components for connecting the work vehicle guardrail and support components for connecting the safety ladder at both ends of the telescopic beam, maintenance personnel can safely walk between the work vehicle guardrail and the safety ladder, ensuring the safety of maintenance personnel and thus improving the efficiency of maintenance work. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a valve tower docking channel for valve hall maintenance provided in an embodiment of this application;

[0011] Figure 2 This is a schematic diagram of a telescopic beam frame in a valve tower docking channel for valve hall maintenance, provided in an embodiment of this application.

[0012] Figure 3 This is a schematic diagram of the connection between the folding pedal and the roller in a valve tower docking channel for valve hall maintenance, provided in an embodiment of this application.

[0013] Figure 4 This is a schematic diagram of a telescopic pedal in a valve tower docking channel for valve hall maintenance, provided in an embodiment of this application;

[0014] Figure 5 This is a schematic diagram of a hook in a valve tower docking channel for valve hall maintenance, provided in an embodiment of this application.

[0015] In the diagram: 1. Main body of the passageway; 2. Telescopic beam frame; 3. Step; 4. Suspension assembly; 5. Second step; 6. Work vehicle guardrail; 7. Support component; 8. Hook; 9. Safety ladder; 10. Outer beam; 11. Inner beam; 12. Slider; 13. Safety lock tongue; 14. Reel; 15. Folding step; 16. First step; 17. Limiting protrusion. Detailed Implementation

[0016] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] like Figures 1 to 5 As shown, a valve tower docking channel for valve hall maintenance includes:

[0018] The passageway body 1 includes a set of parallel retractable beams 2, with a step 3 positioned between the retractable beams 2. The width of the retractable beams 2 and the step 3 can be adjusted according to actual conditions, for example, 600mm-800mm. The step 3 is equipped with an anti-slip layer to ensure normal passage for maintenance personnel. In actual use, the cross-section of the retractable beams 2 is preferably rectangular to achieve stable fixation with the step 3.

[0019] The retractable beam frame 2 includes an outer beam 10 and multiple inner beams 11 nested layer by layer. To ensure reliable sliding, the outer beam 10 and inner beams 11 are slidably connected by sliders 12. These sliders 12 include, but are not limited to, engineering plastics such as polyoxymethylene (POM), effectively reducing friction and noise. In actual use, the inner beams 11 are continuously extended and retracted to adapt to different working distances. Furthermore, the retractable beam frame 2 needs to be used in conjunction with a footboard 3. For ease of storage and use, the two are typically detachably connected. The detachable connection method is not unique; the footboard 3 can be configured as a retractable footboard or a folding footboard 15, depending on the actual situation. Consequently, the connection method between the retractable beam frame 2 and the footboard 3 varies depending on the type of footboard 3. For example, the outer beam 10 and inner beams 11 are respectively provided with buckles for connecting the footboard 3, and the footboard 3 has corresponding slots at corresponding positions.

[0020] Specifically, when the folding pedal 15 is used, the roller 14 is detachably connected between the outer beams 10; the folding pedal 15 at the end is detachably connected to the inner beam 11 and extends along the inner beam 11 to the step of the safety ladder 9 of the valve tower.

[0021] When the telescopic pedal is used, the telescopic pedal includes a first pedal 16 and a second pedal 5 that are sleeved together, wherein the edge of the first pedal 16 is fixedly connected to the outer beam 10; and the opposite side of the first pedal 16 is provided with a slot.

[0022] The second pedal 5 has a limiting protrusion 17 that slides inside the slot fixed on the opposite side; the side is fixed to the inner beam 11.

[0023] The suspension assembly 4 is equipped with an anti-slip layer, one end of which is fixedly connected to one end of the telescopic beam 2, and the other end is connected to the work vehicle guardrail 6. The suspension assembly 4 can be a hook 8, the inner diameter of which matches the radius of the work vehicle guardrail 6, such as "J-type or hook type". During use, the hook 8 is hooked onto the work vehicle guardrail 6. The hooking method can be a safety locking tongue 13 or a pin-type stop, which can fix it at different positions of the guardrail. It should be noted that the guardrail needs to be reinforced to ensure that maintenance personnel can walk normally on the telescopic beam.

[0024] The support member 7 is fixedly connected to the other end of the telescopic beam frame 2, and the other end is connected to the safety ladder 9 installed on the valve tower. In a preferred embodiment, the other end of the support member 7 overlaps the footboard of the safety ladder 9, so that the support member 7 is connected to the footboard by the driver's weight while the maintenance personnel walk on the footboard 3, and the docking channel can be quickly retracted when the maintenance personnel finish their work.

[0025] Therefore, the working process of the valve tower docking channel used for valve hall maintenance is as follows:

[0026] Maintenance personnel move the work vehicle to the front of the safety ladder 9 of the valve tower, and then activate the elevator to make the work vehicle guardrail 6 and the safety ladder 9 parallel. After that, the telescopic beam 2 is connected to the work vehicle guardrail 6 through the suspension assembly 4 (hook 8). During the connection process, it is preferable to use the safety lock tongue 13 or the pin-type baffle to further tighten it.

[0027] The other end of the telescopic beam 2 is fixed with a support frame 7. The support frame 7 is equipped with an anti-slip layer and is used to overlap the step plate of the safety ladder 9. As the inner beam 11 of the telescopic beam 2 extends toward the safety ladder 9, it drives the step plate 3 to unfold, thereby laying the step plate 3 flat between the two telescopic beams 2. The width of the step plate 3 is 600mm-800mm, which makes it convenient for maintenance personnel to carry tools and pass over it.

[0028] After the work is completed, the maintenance personnel return to the guardrail area of ​​the work vehicle and retract the retractable beam 2 to store the pedals together.

[0029] It should be noted that the design of pedal 3 can be customized according to different needs, such as using a telescopic pedal or a folding pedal 15. The telescopic pedal includes a first pedal 16 and a second pedal 5 that are connected together. The edge of the first pedal 16 is fixedly connected to the outer beam 10, and the second pedal 5 is fixed to the inner beam 11. The two pedals can be stored and laid flat as the outer beam 10 and the inner beam 11 contract and unfold. When the folding pedal 15 is used, it is wrapped around the scroll 14 and the scroll 14 is fixed to the outer beam 10. The outermost folding pedal 15 on the scroll 14 is fixed to the inner beam 11 and can be stored and laid flat as the outer beam 10 and the inner beam 11 contract and unfold.

[0030] The technical solution provided in this application establishes a detachable and adjustable docking channel between the work vehicle guardrail and the valve tower safety ladder. By configuring corresponding steps above the telescopic beam and configuring suspension components for connecting the work vehicle guardrail and support components for connecting the safety ladder at both ends of the telescopic beam, maintenance personnel can safely walk between the work vehicle guardrail and the safety ladder, ensuring the safety of maintenance personnel and thus improving the efficiency of maintenance work.

[0031] This invention defines certain directional terms. Unless otherwise stated, the directional terms used, such as "up," "down," "left," "right," "inner," and "outer," are used for ease of understanding and therefore do not constitute a limitation on the scope of protection of this invention.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A valve tower docking channel for valve hall maintenance, characterized in that, include: The main body of the passage (1) includes a set of parallel telescopic beams (2), and a footboard (3) is provided between the telescopic beams (2); The suspension assembly (4) is fixedly connected at one end to one end of the telescopic beam frame (2) and at the other end to the work vehicle guardrail (6). The support member (7) is fixed to the other end of the telescopic beam frame (2), and the other end is connected to the safety ladder (9) installed on the valve tower.

2. The valve tower docking channel for valve hall maintenance according to claim 1, characterized in that, The retractable beam frame (2) includes an outer beam (10) and multiple inner beams (11) nested layer by layer. The outer beam (10) and the inner beam (11) are respectively provided with buckles for connecting the pedal (3).

3. The valve tower docking channel for valve hall maintenance according to claim 2, characterized in that, The outer beam (10) and the inner beam (11) are slidably connected by a slider (12).

4. The valve tower docking channel for valve hall maintenance according to claim 1, characterized in that, The suspension assembly (4) is a hook (8), the inner diameter of which matches the radius of the work vehicle guardrail (6).

5. The valve tower docking channel for valve hall maintenance according to claim 4, characterized in that, The hook (8) is equipped with a safety latch (13).

6. The valve tower docking channel for valve hall maintenance according to claim 4, characterized in that, The hook (8) is provided with a pin-type baffle.

7. The valve tower docking channel for valve hall maintenance according to claim 3, characterized in that, The pedal (3) is a telescopic pedal or a folding pedal (15).

8. The valve tower docking channel for valve hall maintenance according to claim 7, characterized in that, A roller (14) is detachably connected between the outer beams (10). The spool (14) is wound with a plurality of the folding pedals (15), and the end of the folding pedals (15) is fixedly connected to the inner beam (11).

9. The valve tower docking channel for valve hall maintenance according to claim 7, characterized in that, The telescopic pedal (3) includes a first pedal (16) and a second pedal (5) that are sleeved together, wherein the edge of the first pedal (16) is fixedly connected to an outer beam (10); a slot is provided on the opposite side of the first pedal (16). The second pedal (5) has a limiting protrusion (17) that slides inside the slot on the opposite side; the side is fixed to the inner beam (11).

10. The valve tower docking channel for valve hall maintenance according to claim 1, characterized in that, The pedal (3), suspension assembly (4), and support member (7) are provided with anti-slip layers.

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