Improved fixed guide vane peripheral aisle platform for runner chamber of hydropower station

Abstract

The utility model discloses a hydropower station runner chamber reformed fixed guide vane peripheral aisle platform, which comprises a connecting frame and a laying frame, the connecting frame and the laying frame are respectively sectionally and annularly spliced on the inner side of a fixed guide vane, the laying frame is fixedly connected through a cross rod, the laying frame is arranged in two circles in parallel, and the cross rod is arranged between the two circles of laying frame for connection. The walkway pedals are annularly and continuously laid on the cross rod between the two circles of laying frames, and the walkway pedals are fixedly connected with the cross rod, so that an annular safety channel with high integrity is formed, and the safety of workers in the safety channel is improved.

Description

Technical Field

[0001] The utility model relates to the field of the transformation operation platform of the runner chamber of a hydropower station turbine generator set, and particularly relates to a peripheral walkway platform for the transformation of the stay vanes of a hydropower station runner chamber. Background Technique

[0002] At present, during the transformation operation of the runner chamber of a hydropower station turbine generator set, due to the obstruction of the stay vanes, it is inconvenient for personnel to pass along the circumference of the runner chamber, the activity space is limited, and the safety hazards of edge operations are great, which has a certain impact on the progress and safety control of the runner chamber transformation operation. To meet the requirements of the transformation operation of the hydropower station runner chamber, it is necessary to build a safety passage around the stay vanes at the lower cone of the runner chamber. The existing safety passage is directly built on the stay ring between two adjacent stay vanes, and adjacent safety passage sections are connected through a connecting section. Although the safety passage surrounds the runner chamber, the integrity of the safety passage is poor, resulting in general overall stability of the safety passage. Content of the Utility Model

[0003] The utility model provides a circumferential passage for the runner chamber, which expands the personnel activity space, reduces the safety hazards of edge operations, and meets the requirements of safe and efficient operation during the transformation of the hydropower station runner chamber.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: The technical solution adopted by the utility model to solve its technical problems is: A peripheral walkway platform for the transformation of the stay vanes of a hydropower station runner chamber, including a connecting frame segmented and annularly spliced inside the stay vanes and a laying frame on the periphery. The connecting frame and the laying frame are fixedly connected by cross bars, and the laying frame is arranged in two parallel circles. There are cross bars connecting between the two circles of the laying frame, and a walkway pedal is continuously laid annularly on the cross bars between the two circles of the laying frame. The walkway pedal is fixedly connected with the cross bars.

[0005] Preferably, the connecting frame and the laying frame are arranged in two layers, including a lower platform and an upper platform. The lower platform is in contact with and arranged parallel to the stay ring lower lining plate platform at the bottom of the stay vanes. The upper platform is arranged parallel 2.0 - 2.2 m above the lower platform, and the upper platform and the lower platform are fixedly connected by vertical rods.

[0006] Preferably, the walkway pedal is laid on the lower platform of the connecting frame and the laying frame. The width of the walkway pedal is 0.6 - 1.2 m, and the upper platform is not laid with a walkway pedal.

[0007] Preferably, vertical rods are vertically and fixedly arranged on the outer side of the lower platform of the connecting frame and the laying frame. The vertical rods are arranged at equal intervals along the length direction of the laying frame, and a safety net is arranged circumferentially between the vertical rods.

[0008] Preferably, an annular protective rod is coaxially arranged above the upper platform of the connecting frame and the laying frame and fixedly connected to the cross bar. A sliding sleeve with a C-shaped cross section is slidably arranged on the protective rod, and a safety rope is connected to the sliding sleeve.

[0009] The usage method of the technical solution of the present utility model is as follows: By arranging a connecting frame and a laying frame respectively on the inner side and the outer side of the fixed guide vane, through the fixed connection between the connecting frame and the laying frame, and using each section to surround the fixed guide vane, it is ensured that the formed overall annular steel structure support is in a stable state. Then, a walkway pedal is installed on the laying frame. The walkway pedal adopts a lightweight plate member, which is convenient for installation and handling, forming a working platform for staff to walk around the periphery of the runner chamber stay ring, ensuring the safety of construction.

[0010] 1. The present utility model provides a walkway platform for the periphery of the fixed guide vane in the transformation of a hydropower station runner chamber. Compared with the prior art, it is assembled into a whole through a connecting frame, a laying frame and a cross bar. Among them, the connecting frame, the laying frame and the cross bar are sleeved around the fixed guide vane in two layers, forming effective limiting, and then forming a relatively integral annular safety passage, improving the safety of the staff in the safety passage.

[0011] 2. An annular protective rod is arranged above the walkway pedal, and a sliding sleeve is slidably installed on the protective rod. The safety rope is connected through the sliding sleeve, improving the safety of construction.

[0012] 3. The overall structure of the laying platform composed of the connecting frame, the laying frame and the cross bar is simple, and the walkway pedal is made of lightweight materials, so the erection and demolition are very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following further illustrates the present utility model in conjunction with the drawings and embodiments:

[0014] Figure 1 is the structural schematic diagram of the scaffolding of the present utility model.

[0015] Figure 2 is the top view of the present utility model.

[0016] Figure 3 is the front view of the present utility model.

[0017] In the figure, 1 is the fixed guide vane; 2 is the stay ring; 3 is the connecting frame; 4 is the laying frame; 5 is the walkway pedal; 6 is the safety net; 7 is the protective rod; 8 is the sliding sleeve; 9 is the vertical pole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Such as Figures 1-3As shown in the figure, the utility model provides a peripheral walkway platform for fixing guide vanes in the transformation of a hydroelectric turbine runner chamber, which includes a connecting frame 3 segmented and annularly spliced inside the fixed guide vane 1 and a laying frame 4 on the periphery. The connecting frame 3 and the laying frame 4 are fixedly connected by cross bars, and the laying frame 4 is arranged in two parallel circles. There are cross bars connecting between the two circles of laying frames 4. A walkway pedal 5 is continuously laid annularly on the cross bars between the two circles of laying frames 4, and the walkway pedal 5 is fixedly connected to the cross bars.

[0019] The connecting frame 3 is located inside the fixed guide vane 1, and the laying frame 4 is located outside the fixed guide vane 1. The ends of the connecting frame 3 and the laying frame 4 are sleeved on the fixed guide vane 1 to realize the fixed installation of the connecting frame 3 and the laying frame 4. Then, the walkway pedal 5 is laid on the laying frame 4. The walkway pedal 5 is a long strip-shaped plate member, and after laying, it is tied with steel wires to achieve fixation.

[0020] As Figure 3 shown. The connecting frame 3 and the laying frame 4 are arranged in two layers, including a lower platform and an upper platform. The lower platform is in contact with and parallel to the lower lining plate platform of the stay ring 2 at the bottom of the fixed guide vane 1. The upper platform is arranged parallel 2.0 - 2.2 m above the lower platform. The upper platform and the lower platform are fixedly connected by vertical rods 9 to form a rectangular frame structure, which stably connects the walkway pedal 5 as a whole to the periphery of the fixed guide vane 1 and realizes the horizontal limit of the connecting frame 3 and the laying frame 4.

[0021] The lower platform and the upper platform are provided. The upper platform serves as a protection platform. When workers are constructing in the walkway platform, the upper platform can prevent objects from falling to the lower platform, ensuring the safety of the workers. The adjacent walkway pedals 5 are connected in a lapped form.

[0022] As a preferred implementation mode of the utility model. The walkway pedal 5 is made of a lightweight long wooden board, which is very convenient for erection and demolition. The adjacent walkway pedals 5 are continuously lapped to ensure the safety of workers walking.

[0023] As Figure 3 shown. Vertical rods are fixedly arranged vertically on the outer side of the lower platform of the connecting frame 3 and the laying frame 4. The vertical rods are arranged at equal intervals along the length direction of the laying frame 4. A safety net 6 is arranged between the vertical rods, and the safety net 6 is distributed around the stay ring 2. The safety net 6 is arranged on the periphery of the laying frame 4 to improve the safety of the peripheral walkway platform.

[0024] As Figure 3As shown. An annular protective rod 7 is coaxially and fixedly arranged on the upper platforms of the connecting frame 3 and the laying frame 4. A sliding sleeve 8 with a C-shaped cross-section is slidably arranged on the protective rod 7, and a safety rope is connected to the sliding sleeve 8. An axial groove is arranged inside the sliding sleeve 8 with a C-shaped cross-section, and the axial groove is used for the connection structure of the protective rod 7 to pass through, ensuring that the sliding sleeve 8 can slide stably on the protective rod 7. The inner side of the protective rod 7 is fixedly connected to the upper platform through a connection structure.

Claims

1. A peripheral walkway platform for the fixed guide vane of the runner chamber renovation of a hydropower station, characterized in that: It includes a connecting frame (3) segmented and annularly spliced inside the fixed guide vane (1) and a laying frame (4) on the periphery. The connecting frame (3) and the laying frame (4) are fixedly connected by a cross bar, and the laying frame (4) is arranged in two parallel circles. There is a cross bar connection between the two circles of laying frames (4). A walkway pedal (5) is annularly and continuously laid on the cross bar between the two circles of laying frames (4), and the walkway pedal (5) is fixedly connected to the cross bar.

2. The peripheral walkway platform for fixing stay vanes in the transformation of a hydropower station runner chamber according to claim 1, wherein: The connecting frame (3) and the laying frame (4) are arranged in two layers, including a lower platform and an upper platform. The lower platform is in contact with and parallel to the lower lining plate platform of the stay ring (2) at the bottom of the fixed guide vane (1). The upper platform is arranged parallel 2.0 - 2.2 m above the lower platform, and the upper platform and the lower platform are fixedly connected by a vertical rod (9).

3. A peripheral walkway platform for the stay vanes of a hydropower station runner room according to claims 1 and 2, characterized in that: The walkway pedal (5) is laid on the lower platform of the connecting frame (3) and the laying frame (4), and the width of the walkway pedal (5) is 0.6 - 1.2 m.

4. The peripheral walkway platform for the renovation of the stay vane of a hydropower station runner according to claim 2, wherein: Vertical rods are fixedly arranged vertically on the outer side of the lower platform of the connecting frame (3) and the laying frame (4). The vertical rods are arranged at equal intervals along the length direction of the laying frame (4), and a safety net (6) is arranged circumferentially between the vertical rods.

5. The peripheral walkway platform for the fixed guide vane of the renovation of the runner chamber of a hydropower station according to claim 2, wherein: An annular guardrail (7) is coaxially arranged on the upper platform of the connecting frame (3) and the laying frame (4). The guardrail (7) is fixedly connected to the cross bar. A sliding sleeve (8) with a C-shaped cross section is slidably arranged on the guardrail (7), and a safety rope is connected to the sliding sleeve (8).

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