CN218580603U

CN218580603U - Accident gate

Info

Publication number: CN218580603U
Application number: CN202221937683.XU
Authority: CN
Inventors: 程新年; 冯冠庆; 颜彩红
Original assignee: Guangxi Guiguan Electric Power Co ltd; Dahua General Hydropower Plant Of Guangxi Guiguan Electric Power Co ltd
Current assignee: Guangxi Guiguan Electric Power Co ltd; Dahua General Hydropower Plant Of Guangxi Guiguan Electric Power Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2023-03-07
Anticipated expiration: 2032-07-25

Abstract

The utility model relates to an accident gate, which comprises four gate leaves and three connecting devices, wherein the four gate leaves are stacked from bottom to top in sequence, and two adjacent gate leaves are connected through the connecting devices; two adjacent door leaves can move up and down relatively. Because two adjacent door leaves can relatively reciprocate, after the door machine hoists the upper segment door leaf, the lower segment door leaf keeps motionless under the effect of gravity, makes the clearance between two adjacent door leaves grow, reaches the purpose of sluicing. Therefore, accumulated water between the accident gate and the maintenance gate is reduced, the load of the gantry crane is reduced, and the risks of short-time overload operation of the gantry crane and overload damage of related parts of the gate are reduced.

Description

Accident gate

Technical Field

The utility model relates to a hydraulic engineering gate control technical field particularly, relates to an accident gate.

Background

The dam belongs to an important hydraulic structure of a hydraulic power plant, intercepts water through a gate, controls the water level, adjusts the flow, discharges silt, floats and the like, stores water and raises the upstream water level to meet the requirement of upstream water taking or navigation, opens the gate, can discharge flood, drain waterlogging, flush sand, take water or adjust the flow according to the requirement of downstream water taking, ensures the safety of the dam and meets the comprehensive utilization requirement, reasonably utilizes the water resource, and exerts the comprehensive benefits of regulation, power generation, flood control, disaster reduction and the like of the dam.

The utility model discloses a hydroelectric power station hydraulic turbine water inlet sets up the twice gate and carries out the manger plate, is close to the upper reaches side and is overhauld the gate, and one gate slot is shared with the trash rack to lean on the downstream side to be the accident gate, plays and cuts off rivers rapidly under the emergency, avoids the effect that hydroelectric set trouble incident enlarges, overhauls the gate and is responsible for cutting off rivers when unit overhauls state or accident gate overhaul.

When the accident gate needs to be overhauled, firstly, water in a volute at the downstream of the accident gate is pumped out; then, opening a water filling valve of the accident gate, aiming at discharging accumulated water between the accident gate and the maintenance gate, wherein the accumulated water flows into the downstream through the water filling valve of the accident gate; and finally, lifting the accident gate by using a gate machine at the top of the dam. However, the water filling valves of the existing accident gates are all arranged at the top of the accident gate, accumulated water above the water filling valves can only be discharged, water with the height of about 12m below the water filling valves and up to the bottom sill of the gate cannot be discharged, and a water accumulation space is formed between the accident gate and the maintenance gate, so that a large water level difference is formed between the downstream and the water accumulation space, when the gate is opened, the load of a gate machine is close to a full-load state, and the risks of short-time overload operation of the gate machine and overload damage of related parts of the gate exist.

Therefore, the accident gate is designed, accumulated water between the accident gate and the maintenance gate is reduced, the load of the gantry crane is reduced, and the risk of short-time overload operation of the gantry crane and overload damage of related parts of the gate is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an accident gate is provided, reduce the accident gate and overhaul ponding between the gate, alleviate a quick-witted load, reduce a quick-witted short time overload operation of door and the risk of gate relevant part overload damage.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the accident gate comprises four gate leaves and three connecting devices, wherein the four gate leaves are stacked in sequence from bottom to top, and two adjacent gate leaves are connected through the connecting devices; two adjacent door leaves can move up and down relatively.

As a further improvement of the above technical solution:

the connecting device comprises a movable shaft and a mounting plate, the movable shaft is connected with one door leaf, the mounting plate is connected with the other door leaf, a through sliding groove is formed in the mounting plate along the moving direction of the door leaves, and the movable shaft can be inserted into the sliding groove in a sliding mode. After the portal crane lifts the upper section door leaf, the lower section door leaf keeps still under the action of gravity, and the movable shaft moves upwards along the chute, so that the gap between two adjacent door leaves is enlarged, and the purpose of draining is achieved. When the movable shaft reaches the top wall, the gap between two adjacent door leaves can not be expanded any more, but the lower door leaf is driven by the movable shaft to overcome the gravity to move upwards, so that the two adjacent door leaves are prevented from being disjointed.

Furthermore, the sliding groove is formed by communicating a through hole and a groove, the groove is positioned above the through hole, the shape and the size of the movable shaft are consistent with those of the through hole, and when two adjacent door leaves are contacted, the movable shaft is positioned in the through hole. When the gantry crane lifts the upper door leaf, the movable shaft can slide, so that the gap between two adjacent door leaves is enlarged.

The connecting device also comprises a wedge block, the shape and the size of the wedge block are consistent with those of the groove, and the wedge block can be inserted into the groove. When the wedge block is inserted into the groove, the movable shaft cannot slide when the gantry crane lifts the upper section door leaf, so that the connecting device is changed from a movable connecting device into a fixed connecting device, and two adjacent door leaves are tightly attached.

Furthermore, the wedge block is crescent-shaped. The mounting plate is provided with two strip-shaped pressing plates, the two strip-shaped pressing plates are arranged along the moving direction of the movable shaft, embedded grooves are formed in two sides of the movable shaft, the two strip-shaped pressing plates are respectively embedded into the two embedded grooves, and the movable shaft can slide along the strip-shaped pressing plates; after the wedge block is inserted into the groove, the two strip-shaped pressing plates are respectively blocked at the two sides of the wedge block. The strip-shaped pressing plate not only prevents the movable shaft from shaking left and right, but also guides the movable shaft to slide along the strip-shaped pressing plate. The wedge block is crescent, which is beneficial for the two strip-shaped pressing plates to block on the two sides of the wedge block respectively.

Furthermore, the two strip-shaped pressing plates are bolted with a door She Luo.

Furthermore, the two mounting plates are used for clamping the door leaf.

Compared with the prior art, the utility model has the advantages that:

because two adjacent door leaves can relatively reciprocate, after the door machine hoists the upper segment door leaf, the lower segment door leaf keeps motionless under the effect of gravity, makes the clearance between two adjacent door leaves grow, reaches the purpose of sluicing. Therefore, accumulated water between the accident gate and the maintenance gate is reduced, the load of the gantry crane is reduced, and the risks of short-time overload operation of the gantry crane and overload damage of related parts of the gate are reduced.

Drawings

Fig. 1 is a structural view of an accident gate.

Fig. 2 is a structural view of the coupling device.

Fig. 3 is a structural view of the mounting plate.

Fig. 4 is a structural view of the movable shaft.

Description of the reference numerals:

1. a door leaf; 2. a coupling device; 3. a wedge block; 4. a bolt; 21. a movable shaft; 22. mounting a plate; 23. a chute; 24. a through hole; 25. a groove; 26. a strip-shaped pressing plate; 27. and embedding the groove.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the following detailed description of the present invention, taken in conjunction with the accompanying drawings and the detailed description, is given in a non-limiting manner.

As shown in fig. 1 to 3, the emergency gate of the embodiment includes four gate leaves 1 and three connecting devices 2, the four gate leaves 1 are stacked in sequence from bottom to top, and two adjacent gate leaves 1 are connected through the connecting devices 2; two adjacent door leaves 1 can move up and down relatively. The coupling device 2 comprises a movable shaft 21 and a mounting plate 22, wherein the movable shaft 21 is connected with one door leaf 1, the mounting plate 22 is connected with the other door leaf 1, the mounting plate 22 is provided with a through sliding groove 23 along the moving direction of the door leaf 1, and the movable shaft 21 is slidably inserted into the sliding groove 23. The sliding groove 23 is formed by communicating a through hole 24 and a groove 25, the groove 25 is positioned above the through hole 24, the shape and size of the movable shaft 21 are the same as those of the through hole 24, and when two adjacent door leaves 1 are contacted, the movable shaft 21 is positioned in the through hole 24. Coupling device 2 further includes wedges 3, wedges 3 having a shape and size corresponding to the shape and size of groove 25, and wedges 3 insertable into groove 25. The wedge 3 is crescent.

The mounting plate 22 is provided with two strip-shaped pressing plates 26, the two strip-shaped pressing plates 26 are arranged along the moving direction of the movable shaft 21, the two sides of the movable shaft 21 are provided with embedded grooves 27, the two strip-shaped pressing plates 26 are respectively embedded into the two embedded grooves 27, and the movable shaft 21 can slide along the strip-shaped pressing plates 26; after the wedge 3 is inserted into the groove 25, the two strip-shaped pressing plates 26 are blocked at two sides of the wedge 3 respectively. Both strip-shaped press plates 26 are bolted to the door She Luo. The two mounting plates 22 are used for clamping the door leaf 1.

For the use of this example, reference is made to the following steps:

the four door leaves 1 of the accident gate are a first section door leaf, a second section door leaf, a third section door leaf and a fourth section door leaf from top to bottom in sequence.

When the wedges 3 of the coupling device 2 between the first and second door leaves are removed, the coupling device 2 is a movable coupling device 2, and the other two coupling devices 2 are fixed coupling devices 2. When the accident gate needs to be lifted for maintenance, firstly, the gate water filling valve of the accident gate is opened, and water between the maintenance gate and the accident gate and above the position of the water filling valve is drained. Then, the first section of door leaf, the second section of door leaf, the third section of door leaf and the fourth section of door leaf are lifted up and kept still due to the action of gravity, the movable shaft 21 of the movable connecting device 2 moves upwards along the sliding groove 23, the gap between the first section of door leaf and the second section of door leaf is enlarged, accumulated water between the accident gate and the inspection gate can be discharged from the gap, and the accumulated water above the top of the second section of door leaf is discharged. The accumulated water between the accident gate and the maintenance gate is reduced, the load of the gantry crane is reduced, and the risks of short-time overload operation of the gantry crane and overload damage of related parts of the gate are reduced. Finally, after the movable shaft 21 moves upwards to reach the top wall of the chute 23, the second section of door leaf, the third section of door leaf and the fourth section of door leaf are lifted.

When the wedges 3 of the coupling device 2 between the second and third door leaves are removed, the coupling device 2 is a movable coupling device 2, and the other two coupling devices 2 are fixed coupling devices 2. When the accident gate needs to be lifted for maintenance, firstly, the gate water filling valve of the accident gate is opened, and water between the maintenance gate and the accident gate and above the position of the water filling valve is drained. Then, the first section door leaf and the second section door leaf are lifted, the third section door leaf and the fourth section door leaf are kept still due to the action of gravity, the movable shaft 21 of the movable connecting device 2 moves upwards along the sliding groove 23, the gap between the second section door leaf and the third section door leaf is enlarged, accumulated water between the accident gate and the maintenance gate can be discharged from the gap, and the accumulated water above the top of the third section door leaf is discharged. The accumulated water between the accident gate and the maintenance gate is reduced, the load of the gantry crane is reduced, and the risks of short-time overload operation of the gantry crane and overload damage of related parts of the gate are reduced. Finally, the movable shaft 21 moves upward to reach the top wall of the sliding groove 23, and then the third door leaf and the fourth door leaf are lifted.

When the wedges 3 of the coupling device 2 between the third and fourth door leaves are removed, the coupling device 2 is a movable coupling device 2, and the other two coupling devices 2 are fixed coupling devices 2. When the emergency gate needs to be lifted for maintenance, firstly, the gate water filling valve of the emergency gate is opened, and water between the maintenance gate and the emergency gate and above the position of the water filling valve is drained. Then, the first section door leaf, the second section door leaf and the third section door leaf are lifted, the fourth section door leaf is kept still due to the action of gravity, the movable shaft 21 of the movable connecting device 2 moves upwards along the sliding groove 23, the gap between the third section door leaf and the fourth section door leaf is enlarged, accumulated water between the accident gate and the maintenance gate can be discharged from the gap, and the accumulated water above the top of the fourth section door leaf is discharged. The accumulated water between the accident gate and the maintenance gate is reduced, the load of the gantry crane is reduced, and the risks of short-time overload operation of the gantry crane and overload damage of related parts of the gate are reduced. Finally, the movable shaft 21 moves upward to reach the top wall of the chute 23, and then the fourth door leaf is lifted.

Claims

1. Accident gate, its characterized in that: the door comprises four door leaves (1) and three connecting devices (2), wherein the four door leaves (1) are sequentially stacked from bottom to top, and two adjacent door leaves (1) are connected through the connecting devices (2); two adjacent door leaves (1) can move up and down relatively; the connecting device (2) comprises a movable shaft (21) and a mounting plate (22), the movable shaft (21) is connected with one of the door leaves (1), the mounting plate (22) is connected with the other door leaf (1), a through sliding groove (23) is formed in the mounting plate (22) along the moving direction of the door leaves (1), and the movable shaft (21) can be slidably inserted into the sliding groove (23).

2. The accident gate of claim 1, wherein: the sliding groove (23) is formed by communicating a through hole (24) with a groove (25), the groove (25) is positioned above the through hole (24), the shape and the size of the movable shaft (21) are consistent with those of the through hole (24), and when two adjacent door leaves (1) are contacted, the movable shaft (21) is positioned in the through hole (24).

3. The accident gate of claim 2, wherein: the connecting device (2) also comprises a wedge block (3), the shape and the size of the wedge block (3) are consistent with those of the groove (25), and the wedge block (3) can be inserted into the groove (25).

4. An accident gate according to claim 3, wherein: the wedge block (3) is in a crescent shape.

5. The accident gate of claim 4, wherein: the mounting plate (22) is provided with two strip-shaped pressing plates (26), the two strip-shaped pressing plates (26) are arranged along the moving direction of the movable shaft (21), the two sides of the movable shaft (21) are provided with embedded grooves (27), the two strip-shaped pressing plates (26) are respectively embedded into the two embedded grooves (27), and the movable shaft (21) can slide along the strip-shaped pressing plates (26); after the wedge block (3) is inserted into the groove (25), the two strip-shaped pressing plates (26) are blocked at two sides of the wedge block (3) respectively.

6. An accident gate according to claim 5, wherein: the two strip-shaped pressing plates (26) are connected with the door leaf (1) through bolts.

7. The accident gate of claim 6, wherein: the number of the mounting plates (22) is two, and the two mounting plates (22) clamp the door leaf (1).