Gate hoist structure and pumped storage power station

Abstract

The utility model relates to a hoist structure of gate and pumped storage power station. One kind of hoist structure of gate has: door machine, the crane is installed on the door machine, the lower end of crane is installed with the beam of grabbing, the mechanism of grabbing is installed in the lower end of beam of grabbing, has the pivot along the vertical direction and is installed in the lower end of beam of grabbing, the lower end of pivot is installed with the rectangular plate, pivot axis and rectangular plate plane are perpendicular, the upper end of gate is made with recess at the corresponding position with rectangular plate, the opening of gate recess is provided with the baffle, the baffle is made with the aperture cooperation with rectangular plate, is provided with the drive mechanism of drive pivot rotation around pivot axis on the mechanism of grabbing. Thus, the door machine drives crane and crossbeam to move to the corresponding position with gate, crane runs and drives crossbeam to move downward to make the rectangular plate of crossbeam lower end move to the recess of gate top end, drive mechanism drives rectangular plate to rotate at this time, under the action of rectangular plate and baffle makes gate and crossbeam connect together.

Description

Technical Field

[0001] This utility model relates to a gate opening and closing mechanism structure and a pumped storage power station. It is applicable to the technical field of pumped storage power stations. Background Technology

[0002] Hybrid pumped storage power stations typically utilize the upper and lower reservoir capacities of existing cascade power stations for peak-shaving power generation. They have short construction cycles and abundant site resources, and are gradually gaining attention. However, hybrid pumped storage power stations are generally smaller in scale and installed capacity, resulting in higher static investment per kilowatt. Furthermore, the head of power generation in hybrid pumped storage power stations is much lower than in conventional pumped storage, causing the orifice sizes of trash racks and gates to be much larger than in conventional pumped storage, and the flow velocity through the trash racks to be much higher. Conventional pumped storage power stations require a separate maintenance gate and opening / closing equipment at the tailrace outlet, as well as a trash rack and its opening / closing equipment. The maintenance gate also requires a separate excavation of a cavern, resulting in significant investment and a long construction period. Utility Model Content

[0003] The technical problem to be solved by this utility model is: In order to solve the above-mentioned technical problem, this utility model provides a gate opening and closing mechanism structure and a pumped storage power station.

[0004] The technical solution adopted in this utility model is: a gate opening and closing mechanism structure, having: The gantry crane is equipped with a hoist, and a grab beam is installed at the lower end of the hoist. The gripping mechanism is installed at the lower end of the gripping beam and has a rotating shaft installed vertically at the lower end of the gripping beam. A rectangular plate is installed at the lower end of the rotating shaft, and the axis of the rotating shaft is perpendicular to the plane of the rectangular plate. A groove is made at the upper end of the gate at the position corresponding to the rectangular plate. A baffle is provided at the opening of the gate groove, and an opening that mates with the rectangular plate is made on the baffle. A drive mechanism is provided on the gripping mechanism to drive the rotating shaft to rotate around the axis of the rotating shaft.

[0005] The drive mechanism has a gear and rack swing cylinder mounted on the gripper beam, and the rotating shaft is connected to the gear of the gear and rack swing cylinder.

[0006] A contact sensor is installed at the lower end of the grab beam. The contact sensor and the drive mechanism are both connected to the control terminal. When the contact sensor contacts the gate, it sends a position signal to the control terminal. At this time, the rectangular plate extends into the groove. After receiving the position signal, the control terminal controls the drive mechanism to run and drives the rectangular plate to rotate so that the gate is connected to the grab beam.

[0007] Two gripping mechanisms are installed at the lower end of the grab beam, and the two gripping mechanisms are arranged at both ends of the crossbeam.

[0008] A pumped storage power station utilizes the aforementioned gate hoisting structure, comprising a maintenance gate and a trash rack. A gate slot is formed on the inner wall of the tunnel of the pumped storage power station, and both the maintenance gate and the trash rack can slide in the gate slot. The top of both the maintenance gate and the trash rack has a groove and an opening. A chamber is provided above the tunnel, and the hoisting structure is installed in the chamber. A first placement slot and a second placement slot are formed in the chamber, and the maintenance gate and the trash rack can be placed in the first placement slot and the second placement slot.

[0009] Both the maintenance gate and the trash rack are box-type structures.

[0010] The trash rack is composed of multiple trash rack boxes spliced ​​together.

[0011] The maintenance gate is composed of multiple gate housings assembled together.

[0012] The beneficial effects of this utility model are as follows: This utility model installs a crane on the gantry crane, a grab beam on the crane, a drive mechanism on the grab beam, connects a rotating shaft arranged vertically to the output end of the drive mechanism, installs a rectangular plate at the lower end of the rotating shaft, and sets a groove at the upper end of the gate, and sets an opening at the opening of the groove to cooperate with the rectangular plate. This makes it convenient for the rectangular plate to extend into the groove when the crane is running and drives the grab beam to descend to the position corresponding to the gate. At this time, the rotating shaft and the rectangular plate are rotated to a certain angle by the drive mechanism. At this time, the rectangular plate does not cooperate with the opening. The gate is connected to the grab beam under the cooperation of the rectangular plate and the baffle. This utility model provides a contact sensor at the lower end of the lifting beam, enabling communication between the contact sensor, the drive mechanism, and the control terminal. This facilitates the contact of the gate after the rectangular plate at the lower end of the lifting beam extends into the gate groove and sends a position signal to the control terminal. The control terminal then controls the drive mechanism to operate and rotate the rectangular plate, thereby achieving the connection between the gate and the grab beam. This invention features a gate slot within the tunnel of a pumped-storage power station, a chamber above the tunnel, and a gate hoist structure within the chamber, along with a first and second placement slots for accommodating maintenance gates and trash racks. Both the maintenance gate and trash rack can be inserted into the gate slot. When maintenance is required, a crane can remove the trash rack from the gate slot and place it in the second placement slot. Then, the crane can lift the maintenance gate from the first placement slot and insert it into the gate slot for subsequent maintenance. After maintenance, the crane can lift the maintenance gate from the gate slot and place it in the first placement slot, and then lift the trash rack from the second placement slot and insert it into the gate slot, allowing the trash rack to filter the flowing water. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the gate hoist structure in this utility model.

[0014] Figure 2 This is a schematic diagram of the grab beam structure when the rectangular plate and the baffle plate are fitted together.

[0015] Figure 3 This is a schematic diagram of the grab beam structure when the rectangular plate is not fitted with the hole on the baffle in this utility model.

[0016] Figure 4 This is a structural schematic diagram of a pumped storage power station according to this utility model.

[0017] Figure 5 This is a schematic diagram of the structure of the maintenance gate inserted into the gate slot in this utility model.

[0018] Figure 6 This is a schematic diagram of the structure of the trash rack inserted into the door slot in this utility model.

[0019] Figure 7 This is a connection block diagram of this utility model.

[0020] In the diagram: 1. Gantry crane; 2. Crane; 3. Grab beam; 4. Rotating shaft; 5. Rectangular plate; 6. Drive mechanism; 7. Contact sensor; 8. Control terminal; 9. Tunnel; 10. Gate slot; 11. First placement slot; 12. Second placement slot; 13. Maintenance gate; 14. Trash rack. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0022] Example 1 is a gate opening and closing mechanism structure, which has: The gantry crane 1 is equipped with a crane 2, and a grab beam 3 is installed at the lower end of the crane 2. The gripping mechanism, installed at the lower end of the gripping beam 3, has a rotating shaft 4 mounted vertically at the lower end of the gripping beam 3. A rectangular plate 5 is installed at the lower end of the rotating shaft 4, and the axis of the rotating shaft 4 is perpendicular to the plane of the rectangular plate 5. A groove is formed at the upper end of the gate corresponding to the position of the rectangular plate 5. A baffle is provided at the opening of the gate groove, and an opening is formed on the baffle to cooperate with the rectangular plate 5. A drive mechanism 6 is provided on the gripping mechanism to drive the rotating shaft 4 to rotate around the axis of the rotating shaft 4. Thus, after the gantry crane 1 moves the crane 2 and the crossbeam to the position corresponding to the gate, the crane 2 runs and moves the crossbeam downward, causing the rectangular plate 5 at the lower end of the crossbeam to move into the groove at the top of the gate. At this time, the drive mechanism 6 drives the rectangular plate 5 to rotate, and under the action of the rectangular plate 5 and the baffle, the gate is connected to the crossbeam.

[0023] In this embodiment, two gripping mechanisms are provided at the lower end of the gripping beam 3, and the two gripping mechanisms are arranged at both ends of the crossbeam. This makes the connection between the gate and the crossbeam more stable.

[0024] Example 2 is a gate opening and closing mechanism structure. Based on Example 1, in this example, the drive mechanism 6 has a gear and rack swing cylinder mounted on the grab beam 3, and the rotating shaft 4 is connected to the gear of the gear and rack swing cylinder. Thus, when the cylinder extends or retracts, it can drive the rack to move, and the movement of the rack drives the gear to rotate, thereby causing the rotating shaft 4 and the rectangular plate 5 to rotate.

[0025] Example 3 describes a gate opening and closing mechanism structure. Based on Example 1, this example includes a contact sensor 7 installed at the lower end of the grab beam 3. Both the contact sensor 7 and the drive mechanism 6 are communicatively connected to the control terminal 8. When the contact sensor 7 contacts the gate, it sends a position signal to the control terminal 8. At this time, the rectangular plate 5 extends into the groove. Upon receiving the position signal, the control terminal 8 controls the drive mechanism 6 to operate and rotate the rectangular plate 5, connecting the gate to the grab beam 3. Thus, during the downward movement of the crossbeam driven by the crane 2, when the contact sensor 7 at the lower end senses the gate and sends a position signal to the control terminal 8, the rectangular plate 5 at the lower end of the crossbeam extends into the groove. The control terminal 8 then controls the drive mechanism 6 to operate and rotate the rectangular plate 5, connecting the gate to the crossbeam through the cooperation of the rectangular plate 5 and the baffle.

[0026] Example 4 is a gate opening and closing mechanism structure. In this example, it has: The gantry crane 1 is equipped with a crane 2, and a grab beam 3 is installed at the lower end of the crane 2. The gripping mechanism is installed at the lower end of the gripping beam 3. It has a rotating shaft 4 installed vertically at the lower end of the gripping beam 3. A rectangular plate 5 is installed at the lower end of the rotating shaft 4. The axis of the rotating shaft 4 is perpendicular to the plane of the rectangular plate 5. A groove is made at the upper end of the gate at the position corresponding to the rectangular plate 5. A baffle is provided at the opening of the gate groove. An opening that mates with the rectangular plate 5 is made on the baffle. A drive mechanism 6 is provided on the gripping mechanism to drive the rotating shaft 4 to rotate around the axis of the rotating shaft 4.

[0027] The drive mechanism 6 has a gear and rack swing cylinder mounted on the grab beam 3, and the rotating shaft 4 is connected to the gear of the gear and rack swing cylinder.

[0028] A contact sensor 7 is installed at the lower end of the grab beam 3. The contact sensor 7 and the drive mechanism 6 are both connected to the control terminal 8. When the contact sensor 7 contacts the gate, it sends a position signal to the control terminal 8. At this time, the rectangular plate 5 extends into the groove. After receiving the position signal, the control terminal 8 controls the drive mechanism 6 to run and drives the rectangular plate 5 to rotate so that the gate is connected to the grab beam 3.

[0029] Two gripping mechanisms are installed at the lower end of the gripping beam 3, and the two gripping mechanisms are arranged at both ends of the crossbeam.

[0030] Example 5 is a pumped storage power station. Based on Example 4, this example includes a maintenance gate 13 and a trash rack 14. A gate slot 10 is formed on the inner wall of the tunnel 9 of the pumped storage power station. Both the maintenance gate 13 and the trash rack 14 can slide and cooperate with the gate slot 10. The top of both the maintenance gate 13 and the trash rack 14 has a groove and an opening. A chamber is provided above the tunnel 9. The hoist structure is installed in the chamber. A first placement slot 11 and a second placement slot 12 are formed in the chamber. The maintenance gate 13 and the trash rack 14 can be placed in the first placement slot 11 and the second placement slot 12.

[0031] Thus, when maintenance is required, the crane 2 lifts the trash rack 14 inserted in the gate slot 10 and installs it in the second placement slot 12 inside the cavity. The drive mechanism 6 is controlled to rotate the rectangular plate 5 at the lower end of the crossbeam to the position corresponding to the opening at the top of the trash rack 14. At this time, as the crane 2 moves the crossbeam upwards, the crossbeam can detach from the trash rack 14. Then, the gantry crane 1 drives the crane 2 and the crossbeam to the corresponding position in the first placement slot 11. The crane 2 then moves the crossbeam downwards to the position corresponding to the maintenance gate 13 in the first placement slot 11. The contact sensor 7 at the lower end of the crossbeam contacts the maintenance gate 13 and sends a position signal to the control terminal 8. The control terminal 8 then drives the drive mechanism 6 to rotate the rectangular plate 5. The rectangular plate 5 then extends into the groove at the top of the maintenance gate 13. After rotation, the rectangular plate 5 cooperates with the baffle to connect the maintenance gate 13 to the crossbeam. With the combined action of gantry crane 1 and crane 2, the maintenance gate 13 is transported and inserted into the gate slot 10.

[0032] After maintenance is completed, the gantry crane 1 and the hoist 2 work together to remove the maintenance gate 13 from the gate slot 10 and insert it into the first placement slot 11. The control terminal 8 controls the drive mechanism 6 to rotate the rectangular plate 5 to the position where the opening at the top of the maintenance gate 13 is matched. When the hoist 2 moves the crossbeam upward, the maintenance gate 13 can be disconnected from the crossbeam. The gantry crane 1 and the hoist 2 move the crossbeam to the position corresponding to the trash rack 14 in the second placement slot 12. After the contact sensor 7 at the lower end of the crossbeam contacts the trash rack 14 and the refrigerator control terminal 8 sends a positioning signal, the control terminal 8 drives the drive mechanism 6 to run and rotate the rectangular plate 5 to connect the trash rack 14 to the crossbeam. The gantry crane 1 and the hoist 2 move the trash rack 14 and install it in the gate slot 10. Under the action of the trash rack 14, the flowing water can be filtered.

[0033] In this embodiment, both the maintenance gate 13 and the trash rack 14 are box-type structures. This makes the maintenance gate 13 and the trash rack 14 suitable for hybrid pumped storage power stations.

[0034] In this embodiment, the trash rack 14 is composed of multiple trash rack housings assembled together. The maintenance gate 13 is composed of multiple gate housings assembled together. This facilitates the disassembly, assembly, and maintenance of the trash rack 14 and the maintenance gate 13.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gate opening and closing mechanism structure, characterized in that: have: A gantry crane (1) is installed on the gantry crane (1), and a grab beam (3) is installed at the lower end of the crane (2). The gripping mechanism is installed at the lower end of the gripping beam (3) and has a rotating shaft (4) installed at the lower end of the gripping beam (3) in the vertical direction. A rectangular plate (5) is installed at the lower end of the rotating shaft (4). The axis of the rotating shaft (4) is perpendicular to the plane of the rectangular plate (5). A groove is made at the upper end of the gate at the position corresponding to the rectangular plate (5). A baffle is provided at the opening of the gate groove. An opening is made on the baffle to cooperate with the rectangular plate (5). A drive mechanism (6) is provided on the gripping mechanism to drive the rotating shaft (4) to rotate around the axis of the rotating shaft (4).

2. The gate opening and closing mechanism structure according to claim 1, characterized in that: The drive mechanism (6) has a gear and rack swing cylinder mounted on the grab beam (3), and the rotating shaft (4) is connected to the gear of the gear and rack swing cylinder.

3. The gate opening and closing mechanism structure according to claim 1, characterized in that: A contact sensor (7) is installed at the lower end of the grab beam (3). The contact sensor (7) and the drive mechanism (6) are both connected to the control terminal (8). When the contact sensor (7) contacts the gate, it sends a position signal to the control terminal (8). At this time, the rectangular plate (5) extends into the groove. After receiving the position signal, the control terminal (8) controls the drive mechanism (6) to run and drives the rectangular plate (5) to rotate so that the gate is connected to the grab beam (3).

4. The gate opening and closing mechanism structure according to claim 1, characterized in that: Two gripping mechanisms are provided at the lower end of the gripping beam (3), and the two gripping mechanisms are arranged at both ends of the crossbeam.

5. A pumped storage power station, employing a gate opening and closing mechanism structure as described in any one of claims 1-4, characterized in that: It has a maintenance gate (13) and a trash rack (14). A door groove (10) is made on the inner wall of the tunnel (9) of the pumped storage power station. The maintenance gate (13) and the trash rack (14) can slide with the door groove (10). The top of the maintenance gate (13) and the trash rack (14) are both provided with grooves and baffles. A cavern is set above the tunnel (9). The hoist structure is installed in the cavern. A first placement groove (11) and a second placement groove (12) are made in the cavern. The maintenance gate (13) and the trash rack (14) can be placed in the first placement groove (11) and the second placement groove (12).

6. A pumped storage power station according to claim 5, characterized in that: Both the maintenance gate (13) and the trash rack (14) are box-type structures.

7. A pumped storage power station according to claim 6, characterized in that: The trash rack (14) is composed of multiple trash rack boxes spliced ​​together.

8. A pumped storage power station according to claim 6, characterized in that: The maintenance gate (13) is composed of multiple gate boxes spliced ​​together.

Images