A gate slot device suitable for different types of flat gates

Abstract

The present invention provides a gate slot device adapted to different types of flat gates, which is installed in a second-phase concrete slot reserved on a diversion tunnel and used for the operation of an inspection door and a blocking door. The gate slot device includes a sill arranged at the bottom of an orifice, a lintel arranged at the top of an orifice, a main rail of an inspection door and a main rail of a blocking door arranged downstream, a downstream stainless steel water-stop seat plate, and a reverse rail and an upstream stainless steel water-stop seat plate arranged upstream. When the inspection door is in water-blocking operation, its forward supporting structure acts on the main rail of the inspection door, the gate side water-stop contacts the upstream stainless steel water-stop seat plate, and the bottom water-stop contacts the bottom sill; when the blocking door is in water-blocking operation, its forward supporting structure acts on the main rail of the blocking door, the gate side water-stop contacts the downstream stainless steel water-stop seat plate, the bottom water-stop contacts the bottom sill, and the top water-stop contacts the water-stop seat plate of the lintel. The inspection door and the blocking door of the present invention share a gate slot, which can reduce the size of mountain excavation and save investment.

Description

Technical Field

[0001] The invention relates to the field of water conservancy and hydropower engineering, and in particular to a gate slot device suitable for different types of flat gates. Background Art

[0002] Large-scale high-head dam-type hydropower station projects have large flow rates, and multiple diversion tunnels with large openings need to be set up during construction; at the same time, the construction period of the hydropower station project is long, and the diversion tunnel has a long service life. Before the dam and the spillway are ready for discharge, the diversion tunnel is diverted. After the dam and the spillway are ready for discharge, the diversion tunnel is blocked with a plugging door to facilitate the construction of a permanent plug, and the dam and the spillway are discharged. During the construction of the dam, there are multiple flood seasons. During the flood season, the flow rate is large, and the water flow scours the lining of the diversion tunnel at high speed, especially the bottom plate of the diversion tunnel, which affects the safety of the diversion tunnel. It is necessary to use gates to block water during the dry season and inspect the diversion tunnel in batches.

[0003] The plugging door at the inlet of the diversion tunnel is large in size, and the plugging door is a moving underwater door. When the door is lowered, the water head is high, resulting in a large capacity of the gate hoist and the scale of the gate hoist. In the early stage of the project, due to the limitations of the construction period, transportation and construction conditions, it is difficult to transport and install the plugging door and gate hoist of the diversion tunnel. Even if the installation of the plugging door and gate hoist is completed at the cost of a large amount of manpower, material resources and construction period in the early stage of the project, the gate hoist is exposed to the air for a long time and needs to be maintained regularly. In addition, the plugging door and gate hoist are used less frequently, and the manufacturing and installation costs are high, which occupies a lot of funds. Generally, one flat gate corresponds to a set of gate slot devices. After considering the above factors, the following design scheme is adopted to design the gate slot of the diversion tunnel: a double gate slot is set at the inlet of the diversion tunnel, that is, one inspection gate slot and one blocking gate slot. In the early stage of the project, the inspection door is used to inspect the diversion tunnel. When the diversion tunnel is blocked in the later stage, the gate hoist rack of the plugging door is constructed, and the plugging door and gate hoist are manufactured and installed. After the inspection gate is lowered, the blocking gate slot and diversion tunnel can be inspected. The advantage of this solution is that it does not affect the construction period and saves initial investment; the disadvantage is that the diversion tunnel inlet blocking gate and the hoist are arranged against the mountain, and the space is small. Unless a large amount of money is invested to expand the size of the mountain excavation, it is very difficult to arrange two gate slots. Summary of the invention

[0004] In view of the above-mentioned problems existing in the prior art, the present invention provides a door slot device adaptable to different types of flat gates, combining the inspection door slot and the blocking door slot into one, and adopting a "one slot, two doors" design scheme, that is, the inspection door and the blocking door share a door slot, and embedded parts are arranged in the same door slot, which is adaptable to the support and water-stopping structure of both the inspection door and the blocking door.

[0005] The present invention adopts the following technical solutions to solve the above technical problems:

[0006] A gate slot device adapted to different types of flat gates, the gate slot device being installed in a second-phase concrete slot reserved on a diversion tunnel, the gate slot device being used for the operation of an inspection door and a blocking door, the inspection door being used for inspecting the diversion tunnel, the gate slot device comprising a sill arranged at the bottom of an orifice, a lintel arranged at the top of an orifice, an inspection door main rail and a blocking door main rail arranged downstream, a downstream stainless steel waterstop seat plate, and an upstream reverse rail and an upstream stainless steel waterstop seat plate, when the inspection door is in water-blocking operation, its forward supporting structure acts on the inspection door main rail, the gate side waterstop contacts the upstream stainless steel waterstop seat plate, and the bottom waterstop contacts the bottom sill; when the blocking door is in water-blocking operation, its forward supporting structure acts on the blocking door main rail, the gate side waterstop contacts the downstream stainless steel waterstop seat plate, the bottom waterstop contacts the bottom sill, and the top waterstop contacts the waterstop seat plate of the lintel.

[0007] Furthermore, the inspection door and the blocking door share a counter-track.

[0008] Furthermore, the main rail of the inspection door adopts a cast steel rail corresponding to the positive support structure of the inspection door.

[0009] Furthermore, the main rail of the blocking door adopts a thick steel plate welded rail corresponding to the positive supporting structure of the blocking door.

[0010] The structure of the present invention has the following advantages:

[0011] (1) The inspection door slot and the blocking door slot are combined into one, which can reduce the size of the mountain excavation and save investment;

[0012] (2) The blocking door is installed later, so that the blocking door hoist frame can be constructed later and the hoist can be installed later, which does not affect the construction period and reduces the initial investment;

[0013] (3) The sealing door hoist is subsequently installed. During the construction period, no maintenance of the hoist is required;

[0014] (4) The inspection door can provide convenient inspection conditions for the door slot and diversion tunnel;

[0015] (5) The inspection door can be transformed into a gate in other parts at a later stage, which is conducive to the optimal utilization of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a layout diagram of the inlet inspection door of the diversion tunnel of the present invention;

[0017] Figure 2 for Figure 1 Section Ⅰ-Ⅰ in the figure;

[0018] Figure 3 for Figure 1 A magnified view of part A in FIG.

[0019] Figure 4This is a layout diagram of the diversion tunnel inlet blocking door of the present invention;

[0020] Figure 5 for Figure 4 Section II-II in the figure;

[0021] Figure 6 It is a structural schematic diagram of the door slot device in the present invention;

[0022] Figure 7 for Figure 2 A magnified view of part B in FIG.

[0023] Figure 8 for Figure 5 Enlarged view of part C in .

[0024] In the figure: 1—blocking door hoist, 2—blocking door hoist frame, 3—blocking door, 4—second phase concrete trough, 5—diversion tunnel platform, 6—inspection door, 7—bottom sill, 8—door lintel, 9—inspection passage, 10—diversion tunnel, 11—temporary lifting equipment for inspection door, 12—main rail of inspection door, 13—downstream stainless steel waterstop seat plate, 14—main rail of blocking door, 15—reverse rail, 16—upstream stainless steel waterstop seat plate, 17—inserted reinforcement, 18—positive support structure of inspection door, 19—positive support structure of blocking door. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings, but the scope of protection claimed is not limited to the description.

[0026] See also Figure 1-6 The embodiment of the present invention provides a gate slot device that is suitable for different types of flat gates. When installing the gate slot device in the second-phase concrete slot 4 reserved on the diversion tunnel 10, the gate slot device is accurately fixed by the dowel 17 buried in the second-phase concrete slot 4, and concrete is poured to bury the gate slot device in the concrete slot 4. The gate slot device includes: a sill 7, a lintel 8, a maintenance door main rail 12, a downstream stainless steel water stop seat plate 13, a blocking door main rail 14, a counter rail 15, and an upstream stainless steel water stop seat plate 16.

[0027] After the diversion tunnel 10 is diverted during the flood season, there may be scouring damage. In the dry season, the diversion tunnel 10 is inspected and repaired in batches using the inspection door 6. At this time, the water head of the inspection door 4 is much lower than the water head of the blocking door 3. Therefore, the door thickness of the inspection door 6 of the present invention is designed to be smaller than the door thickness of the blocking door 3, and the inspection door 6 is designed to be "П" type (such as Figure 2 As shown), the thickness of the inspection door 6 is smaller than the height of the side column, and obviously smaller than the width of the door slot device, thereby forming an inspection passage 9 between the inspection door 6 and the entrance of the diversion tunnel 10. The inspection passage 9 is connected to the diversion tunnel 10 to facilitate the entry and exit of maintenance personnel and the transportation of equipment and materials.

[0028] The inspection door 6 is hoisted into the door slot device by the temporary hoisting device 11 on the diversion tunnel platform 5, and the positive support structure 18 of the inspection door acts on the main rail 12 of the inspection door (such as Figure 7 As shown), the gate side water stop contacts the upstream stainless steel water stop seat plate 16, and the bottom water stop contacts the bottom sill 7, forming a water seal to cut off the upstream water body, and personnel, equipment and materials are transported into the diversion tunnel 10 from the maintenance channel 9, thereby completing the maintenance of the diversion tunnel 10.

[0029] In the middle and late stages of construction, according to the construction progress of the dam and spillway, the construction of the diversion tunnel blocking door hoist frame 2 and the manufacture and installation of the blocking door 3 and the blocking door hoist 1 are arranged. The blocking door 3 is assembled above the diversion tunnel platform 5, and the blocking door hoist 1 is used to move the underwater door. The blocking door positive support structure 19 acts on the blocking door main rail 14 (such as Figure 8 As shown), the gate side water stop contacts the downstream stainless steel water stop seat plate 13, the bottom water stop contacts the bottom sill 7, and the top water stop contacts the water stop seat plate of the lintel 8, forming a water seal to cut off the upstream water body, achieving the purpose of blocking so as to construct a permanent plug.

[0030] The inspection door 6 of the present invention adopts upstream water stopping, and an upstream stainless steel water stopping seat plate is arranged on the reverse rail 15, and the inspection door main rail 12 adopts a cast steel rail corresponding to the inspection door positive support structure 18; the blocking door 3 adopts downstream water stopping, and the blocking door main rail 14 adopts a thick steel plate welded rail corresponding to the blocking door positive support structure 19, and a downstream stainless steel water stopping seat plate is arranged on the blocking door main rail 14.

[0031] The inspection door 3 and the blocking door 6 in the gate slot device share the reverse track 15. Whether to share the main track is determined by the positive support structure of the two gates. If the positive support structure of the two gates is consistent, such as using fixed wheel support or slider support, the main track can be shared. When the diversion tunnel 10 no longer needs to be inspected and maintained, the inspection door 6 can be transformed into a gate at other parts.

[0032] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A door slot device adapted to different types of flat gates, characterized by: The gate slot device is installed in a second-phase concrete slot (4) reserved on the diversion tunnel (10). The gate slot device is used for the operation of the inspection door (6) and the blocking door (3). The inspection door (6) is used to inspect the diversion tunnel (10). The gate slot device comprises a sill (7) arranged at the bottom of the hole, a lintel (8) located at the top of the hole, an inspection door main rail (12) and a blocking door main rail (14) arranged upstream, a downstream stainless steel water stop seat plate (13), and a reverse rail (15) and an upstream stainless steel water stop seat plate (16). When the inspection door (6) is in water-blocking operation, the inspection door forward support structure (18) acts on the inspection door main rail (12), and the gate side water stop contacts the upstream stainless steel water stop seat plate (16). The bottom water stop contacts the bottom sill (7); when the blocking door (3) is in water-blocking operation, the blocking door forward support structure (19) acts on the blocking door main rail (14), the gate side water stop contacts the downstream stainless steel water stop seat plate (13), the bottom water stop contacts the bottom sill (7), and the top water stop contacts the water stop seat plate of the lintel (8); the door thickness of the inspection door (6) is designed to be smaller than the door thickness of the blocking door (3), and the inspection door (6) is designed to be "П"-shaped, the door body thickness of the inspection door (6) is smaller than the side column height, and obviously smaller than the width of the door slot device, so that an inspection channel (9) is formed between the inspection door (6) and the inlet of the diversion tunnel (10), and the inspection channel (9) is connected to the diversion tunnel (10) to facilitate the entry and exit of maintenance personnel and the transportation of equipment and materials.

2. The door slot device adapted to different types of flat gates as claimed in claim 1, characterized in that: The inspection door (3) and the blocking door (6) share a counter rail (15).

3. The door slot device adapted to different types of flat gates as claimed in claim 1, characterized in that: The main rail (12) of the inspection door adopts a cast steel rail corresponding to the positive support structure (18) of the inspection door.

4. The door slot device adapted to different types of flat gates as claimed in claim 1, characterized in that: The main rail (14) of the blocking door is a thick steel plate welded rail corresponding to the positive support structure (19) of the blocking door.

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