CN213061953U - Dam-crossing navigation arrangement structure of upstream launching type ship lift - Google Patents

Abstract

The utility model relates to an upper-stream launching type ship lift dam-crossing navigation arrangement structure, which comprises an upper lock head, a ship lift main body section, a main hoisting device and a ship-carrying chamber, wherein the ship lift main body section comprises a ship lift chamber, a raft foundation, a totally-enclosed cylinder structure, a balance weight well and a main hoisting device machine room; a main lifting device is arranged in the main lifting device machine room; a balance weight which is vertically lifted and lowered is arranged in the balance weight well; a ship receiving chamber is arranged in the ship chamber of the ship lift; when the ship receiving chamber is positioned at the lower limit of the ship chamber of the ship lift, the balance weight is just positioned at the upper limit of the balance weight well; when the ship receiving chamber is positioned on the ship chamber of the ship lift for limiting, the counterweight is positioned under the shaft for limiting. The utility model can flexibly arrange navigation circuits, and meet the arrangement requirement of a high head arch dam pivot; but also can adapt to the characteristics of large water level amplitude variation, fast water level variability and the like which are common in junction engineering in high mountain canyon regions; and simultaneously, the additional construction of large-scale water retaining buildings and seepage-proofing systems can be avoided.

Description

Dam-crossing navigation arrangement structure of upstream launching type ship lift

Technical Field

The utility model belongs to the technical field of water conservancy, water conservancy project technique and specifically relates to a dam-crossing navigation arrangement structure of upper reaches launch formula ship lift is related to.

Background

Navigation buildings such as ship locks, ship lifts and the like can overcome water head difference, and are important facilities for ensuring normal navigation of cascade developed rivers. For high-head dam-crossing navigation, the widely-used building type is mainly a vertical ship lift. The vertical ship lift is divided into a full-balanced type and a launching type according to the running condition of a ship receiving chamber. The compartment chamber of the full-balanced ship lift is in a waterless environment, the total weight of the ship receiving compartment is always the same as that of the balance weight during operation, and the full-balanced ship lift has the advantages of low operation cost, mature and reliable technology and the like; the cabin chamber of the launching type ship lift is communicated with the water area of the navigation channel, and the change of buoyancy can not keep balance with the weight of the balance weight all the time in the water inlet and outlet running process, so that the scale of the lifting equipment can be reduced only by adopting a partial balance mode.

The vertical ship lift consists of mainly upper and lower lock heads, cabin, upstream and downstream navigation channels and other buildings. For a high-head pivot with a dam type being a gravity dam, a dam-passing arrangement mode of a 'water retaining gate head + a cylinder structure' is generally adopted to realize a dam-passing navigation function, an upper gate head is generally used as a part of a water retaining building to resist upstream reservoir water for a main body structure of a ship lift, such as ship lift engineering of pivots of three gorges, river isolation rocks, high dam continents, pavilion mouths, facing dams and the like. However, for a junction project adopting dam types such as an arch dam, an earth and rockfill dam and the like, a navigation gate head cannot be combined with a dam and also can be used as a part of a water retaining building, a ship cannot realize a navigation target in a dam penetrating mode, and the axis of the navigation building is difficult to be arranged near the bank by considering complex terrain and river conditions, so that the navigation building can be arranged only on the dam shoulders of the left bank and the right bank by utilizing the terrain alone. For the high mountain canyon region, because the dam abutment mountain is generally a single-face mountain terrain, if a full-balanced vertical ship lift is adopted, a water retaining structure and an anti-seepage system need to be specially built, the engineering investment is large, and the implementation of the anti-seepage system is more difficult in a karst development region. In order to adapt to the amplitude of the upstream water level, the elevation of the navigation facility of the vertical ship lift, which penetrates through the mountain at the downstream, is lower than the lowest navigation water level at the upstream in a conventional operation mode, so that the excavation of a larger dam abutment mountain is caused, and the stability of the dam abutment of an arch dam junction is even influenced. In addition, the construction period of the ship lift arranged at the upstream may be restricted by the node of the terminal water storage and power generation time, which requires the ship lift to be implemented as simply as possible.

Therefore, it is a significant work to develop a dam-passing navigation arrangement structure suitable for a high head arch dam junction in a high mountain canyon region.

SUMMERY OF THE UTILITY MODEL

For solving the problem in the background art, the utility model provides a dam navigation arrangement structure is crossed to upper reaches launch formula ship lift, should cross dam navigation arrangement structure can design the navigation axis in a flexible way, satisfies the arrangement requirement of high head arch dam pivot, can adapt to again in the high mountain canyon area pivot engineering common water level become the width of cloth characteristics such as big, the water level variability is fast, can avoid additionally building large-scale retaining structure and anti-seepage system simultaneously, the construction degree of difficulty is less, the engineering investment is lower.

The utility model adopts the technical proposal that: the utility model provides an upper reaches launch formula ship lift dam-crossing navigation arrangement structure arranges in pivot engineering dam abutment massif upper reaches, including ship lift lock head, ship lift main part section, main hoisting equipment and ship reception chamber, its characterized in that: a navigation building capable of adapting to water level amplitude variation is arranged at the upstream of the head of the upper lock, and a main body section of the ship lift is arranged at the downstream; the ship lift main body section comprises a ship lift compartment chamber, a raft foundation, a totally-enclosed barrel structure, a counterweight well and a main lifting equipment machine room; the totally-enclosed cylinder structure divides the space into two functional areas, namely a ship lift compartment and a balance weight well; the counterweight well is a closed space isolated from the outside, is symmetrically arranged at two sides of a cabin chamber of the ship lift, and is internally provided with counterweights for vertical lifting operation; the ship lift cabin chamber is communicated with an upstream reservoir, a ship receiving cabin is arranged in the ship lift cabin chamber, main lifting equipment is arranged in a main lifting equipment machine room, and the ship receiving cabin is driven by the main lifting equipment to vertically lift in the ship lift cabin chamber; when the ship reception chamber is positioned at the lower limit of the ship lift chamber, the counterweight is just positioned at the upper limit of the counterweight well, and when the ship reception chamber is positioned at the upper limit of the ship lift chamber, the counterweight is just positioned at the lower limit of the counterweight well.

Preferably, the navigation building adopts a navigation floating dike and a navigation buttress.

Preferably, the upper gate head is provided with an inspection gate and a gate slot, and the top of the upper gate head is provided with an inspection gate hoist.

Preferably, the main lifting device comprises a winding drum, a speed reducer, a synchronizing shaft and a lubrication pump station.

Preferably, a traffic bridge is arranged at an upstream exit of the main hoisting equipment machine room and is in traffic connection with the bank of an upstream reservoir, so that traffic requirements in the aspects of equipment installation, overhaul, operation management, fire evacuation and the like are met.

Preferably, the two sides of the ship lift compartment chamber are respectively provided with a clamping rail at the upstream and the downstream of the totally-closed cylinder structures, and the clamping rails play a role in guiding the ship lift compartment during lifting operation.

Preferably, the upper stream and the lower stream of the totally-enclosed cylinder structure are respectively provided with an outdoor evacuation stair, so that the requirements of evacuation and maintenance of personnel in a ship receiving chamber in an emergency situation during the operation of the ship lift are met.

Preferably, a water retaining wall is arranged between the totally-enclosed barrel structures at the downstream and two sides of the ship lift compartment chamber, and the water retaining wall, the upstream maintenance gate and the totally-enclosed barrel structures at the two sides form a closed space together to be isolated from an upstream reservoir, so that water in the ship lift compartment chamber is pumped out to be beneficial to maintenance of the ship lift compartment chamber.

Preferably, the ship passes through a dam and is navigable at the downstream of the ship lift compartment through a navigable aqueduct, a navigable open channel and a navigable tunnel.

Furthermore, a flood blocking gate is arranged near the entrance of the navigation tunnel to block and check the flood level and prevent flood from leaking down through the navigation tunnel.

Furthermore, the operation water level in the navigation aqueduct, the navigation open channel and the navigation tunnel is not lower than the highest navigation water level at the upstream, so that the reverse operation of the vertical ship lift is realized, and the large water level variation and the fast water level variability at the upstream are adapted.

Preferably, the total weight of the balance weight is less than the total weight of the ship reception chamber for adding water, the balance weight is configured to enable the output torque of the main lifting equipment when the ship reception chamber ascends and descends above the water surface to be equal to the output torque when the ship reception chamber is underwater, the motor runs at a rated speed on the water, and runs at a low speed by regulating the speed under the water;

or the balance weight is configured to ensure that the driving power of the main lifting equipment is equal to the driving power of the ship reception chamber under water when the ship reception chamber is lifted on water, the motor runs at a low speed under water through speed regulation, and runs at a high speed on water through speed regulation.

The utility model discloses the beneficial effect who gains is:

(1) the launching type ship lift is arranged in the upstream reservoir and adopts a reverse running mode, so that the upstream water level variation can be adapted, a water retaining building and an anti-seepage system do not need to be specially built, the construction difficulty and the engineering investment can be obviously reduced, and the construction period can be favorably shortened. The reverse operation means that the operation direction of the ship receiving chamber is opposite to the operation mode of the conventional vertical ship lift, namely the ship receiving chamber rises when the ship descends, and the ship receiving chamber falls when the ship ascends. The goal of arranging a launching ship lift in an upstream reservoir is realized by adopting a reverse running mode;

(2) compared with the conventional arrangement of the navigation building, the upper gate head is no longer used as a part of a hub water retaining building, and the arrangement of the navigation axes is relatively independent, so that the navigation structure is more flexible, and the air lines can be reasonably arranged according to the conditions of terrain and river;

(3) because the ship lift runs in the reverse direction, the channel or tunnel penetrating through the mountain body needs to be higher than the highest navigation water level at the upstream, so that the ship lift is arranged at a higher elevation, the large-range side slope excavation can be reduced, and the adverse effects of the side slope or navigation tunnel excavation on the aspects of the bearing capacity, seepage prevention and the like of the abutment of the arch dam are reduced to the minimum;

(4) the utility model discloses a arrange the target of lower water formula ship lift in upstream reservoir, compare with conventional ship lock or full balanced ship lift scheme and can adapt to the upper reaches water level better and become width of cloth.

Drawings

Fig. 1 is a plan view of the present invention;

FIG. 2 is a longitudinal cross-sectional view of FIG. 1;

FIG. 3 is a transverse cross-sectional view of FIG. 1;

FIG. 4 is a schematic structural view of the main lifting apparatus;

reference numerals: 1. navigating the floating dike; 2. a navigation buttress; 3. an upper brake head; 4. an upstream service gate; 5. an upstream maintenance gate hoist; 6. a ship lift compartment; 7. a raft foundation; 8. a main hoisting equipment room; 9. a traffic bridge; 10. ship reception chambers (lower limit position); 11. ship reception chambers (upper limit positions); 12. a counterweight well; 13. counterweight (lower limit position); 14. counterweight (upper limit position); 15. a totally-enclosed barrel structure; 16. a primary lifting device; 161. a reel; 162. a speed reducer; 163. a synchronizing shaft; 164. lubricating a pump station; 17. clamping the rail; 18. evacuating stairs at the upstream; 19. evacuating stairs at downstream; 20. a downstream steel gate head; 21. a downstream retention wall; 22. a navigation aqueduct; 23. open channels for navigation; 24. a navigable tunnel; 25. a flood gate; l, a navigable building axis; h1, the upstream highest navigation water level; h2, upstream minimum navigable water level; h3, checking flood level; h4, navigation tunnel operation water level.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-4, the utility model discloses an upper reaches launch formula ship lift leads to navigation arrangement structure arranges in pivot engineering dam abutment mountain upper reaches, including ship lift upper lock head 3, totally closed tube structure 15, ship lift carriage room 6, balanced heavy well 12, raft type basis 7, main hoisting equipment computer lab 8 and main hoisting equipment 16 and ship reception carriage 10(11) (adopt metal construction), the navigation building that can adapt to the great water level amplitude of change is arranged in the 3 upper reaches of next-door neighbour upper lock head, and navigation floating embankment 1 and navigation buttress 2 promptly are equipped with upper reaches inspection gate 4 and gate slot on upper lock head 3, and upper reaches inspection gate headstock gear 5 is arranged at the top.

The ship lift main body section comprises a raft foundation 7 arranged at the bottom, a ship lift compartment chamber 6, totally-enclosed cylinder structures 15 arranged at the left side and the right side of the ship lift compartment chamber 6, a balance weight well 12 arranged in the totally-enclosed cylinder structures 15 and a main lifting equipment machine room 8 arranged at the top, the totally-enclosed cylinder structures 15 divide the space into two functional areas of the ship lift compartment chamber 6 and the balance weight well 12, the ship lift compartment chamber 6 is communicated with an upstream reservoir and is used for a ship bearing compartment 10(11) to vertically lift and run; the balance weight well 12 is a closed space isolated from the outside and symmetrically arranged at the left and right sides of the ship lift compartment chamber 6, and balance weights 13 and 14 are vertically lifted and lowered in the balance weight well 12. When the ship receiving chamber 10(11) is at the lower limit of the ship lifting machine chamber 6, the balance weight 13(14) is at the upper limit of the balance weight well 12; conversely, when the ship reception chamber 10(11) is at the upper limit of the ship lift chamber 6, the counterweight 13(14) is at the lower limit of the counterweight well 12.

A main lifting equipment machine room 8 is arranged at the top of the totally-enclosed cylinder structure 15, a main lifting equipment 16 is arranged in the totally-enclosed cylinder structure, and the main lifting equipment 16 comprises a winding drum 161, a reducer 162, a synchronizing shaft 163 and a lubrication pump station 164, as shown in fig. 4.

A traffic bridge 9 is arranged at an upstream exit of the main hoisting equipment machine room 8 and is in traffic connection with the upstream reservoir bank, so that traffic requirements in the aspects of equipment installation, overhaul, operation management, fire evacuation and the like are met.

Two clamping rails 17 are respectively arranged on two sides of the ship lift compartment chamber 6 and on the upstream and downstream of the totally-enclosed cylinder structure 15, and play a role in guiding the ship-bearing compartment 10(11) during lifting operation; an outdoor evacuation stair (an upstream evacuation stair 18 and a downstream evacuation stair 19) is respectively arranged at the upstream and the downstream of the totally-enclosed cylindrical structure 15 so as to meet the requirements of evacuation and overhaul use of personnel in a ship receiving chamber 10(11) in an emergency situation during the operation process of the ship receiving chamber 10 (11); a water retaining wall 21 is arranged between the left and right side totally-enclosed cylinder structures 15 at the downstream of the ship lift compartment chamber 6, and forms a closed space together with the upstream maintenance gate 4 and the two side totally-enclosed cylinder structures 6 to be isolated from an upstream reservoir, so that water in the ship lift compartment chamber 6 is pumped out to be beneficial to maintenance of the ship lift compartment chamber 6.

The ship passes through the dam and is navigable at the downstream of the upstream and downstream water-running ship lift by building types such as a navigable aqueduct 22, a navigable open channel 23, a navigable tunnel 24 and the like. A flood gate 25 is arranged near the tunnel inlet to resist and check the flood level H3, so that flood is prevented from leaking down through the navigation tunnel 24.

The operation water level H4 in the buildings such as the navigation aqueduct 22, the navigation open channel 23, the navigation tunnel 24 and the like is not lower than the highest upstream navigation water level H1, so that the reverse operation of the vertical ship lift is realized, and the large upstream water level amplitude is adapted. The height determination of these buildings should also take into account the requirements of resisting the check flood level H3 and the aqueduct beam bottom seats being higher than the design flood level.

The buoyancy received in the process of water inlet and outlet of the ship receiving chamber 10(11) changes, the total weight of the balance weights 13(14) is smaller than the total weight of the water added into the ship receiving chamber, and after the weight of the balance weights 13(14) is selected, the lifting force of the main lifting device 16 is determined. The weight of the balance weight 13(14) is selected according to two different principles, namely an equal torque principle and an equal power principle. The term "equal torque" means that the counterweight 13(14) is arranged so that the output torque of the main lifting device 16 when the ship reception chamber 10(11) ascends and descends above the water surface is substantially equal to the output torque when the ship reception chamber 10(11) is underwater, and the motor runs at a rated speed on water and runs at a low speed by speed regulation under water; the term "constant power" means that the counterweight 13(14) is arranged so that the driving power of the main lifting device 16 when the ship reception chamber 10(11) is lifted on water is substantially equal to the driving power when the ship reception chamber 10(11) is underwater, and the motor is operated at a low speed by speed regulation under water and at a high speed by speed regulation on water. The counterweights 13 and 14 can also be selected by combining two different principles to minimize the drive motor power while ensuring that the main hoisting equipment 16 is not oversized.

In this embodiment, the main lifting device 16 and the ship receiving chamber 10(11) of the ship lift are the same as those of the conventional launching type ship lift. The part of the upstream launching type ship lift below the water level of the reservoir is submerged for a long time, and in order to avoid water inflow of the balance weight well 12, the totally-closed cylinder structure 15 needs to bear huge external water pressure, and the stress condition is fully considered in structural design.

In the implementation process, the hydraulic problem in the process of water outlet and water inlet of the ship bearing chamber 10(11) is solved.

The foregoing shows and describes the general principles and principal structural features of the invention. The present invention is not limited by the above-mentioned examples, and the present invention can be modified in various ways without departing from the spirit and scope of the present invention, and these modifications and improvements fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides an upper reaches launch formula ship lift dam-passing navigation arrangement structure arranges in pivot engineering dam abutment massif upper reaches, including last lock head, ship lift main part section, main hoisting equipment and ship reception chamber, its characterized in that: a navigation building capable of adapting to water level amplitude variation is arranged at the upstream of the head of the upper lock, and a main body section of the ship lift is arranged at the downstream; the ship lift main body section comprises a ship lift compartment chamber, a raft foundation, a totally-enclosed barrel structure, a counterweight well and a main lifting equipment machine room; the totally-enclosed cylinder structure divides the space into two functional areas, namely a ship lift compartment and a balance weight well;

the ship lift compartment chamber is communicated with an upstream reservoir and is internally provided with a ship receiving compartment, and main lifting equipment is arranged in the main lifting equipment machine room; the counterweight well is a closed space isolated from the outside, is symmetrically arranged at two sides of a cabin chamber of the ship lift, and is internally provided with counterweights for vertical lifting operation; when the ship reception chamber is positioned at the lower limit of the ship lift chamber, the counterweight is just positioned at the upper limit of the counterweight well, and when the ship reception chamber is positioned at the upper limit of the ship lift chamber, the counterweight is positioned at the lower limit of the counterweight well.

2. The upstream submerged ship lift dam-passing navigation arrangement of claim 1, wherein: the upper gate head is provided with an inspection gate and a gate slot, and the top of the upper gate head is provided with an inspection gate hoist.

3. The upstream submerged ship lift dam-passing navigation arrangement of claim 1, wherein: and a traffic bridge connected with the bank side of an upstream reservoir is arranged at the upstream outlet of the main hoisting equipment machine room, so that the traffic requirements in the aspects of equipment installation, overhaul, operation management and fire evacuation are met.

4. The upstream submerged ship lift dam-passing navigation arrangement of claim 1, wherein: the upper stream and the lower stream of the totally-enclosed cylinder structures at two sides of the ship lift compartment chamber are respectively provided with a clamping track which plays a role in guiding when the ship-carrying compartment lifts.

5. The upstream submerged ship lift dam-passing navigation arrangement of claim 1, wherein: the upper and lower reaches of the totally-enclosed cylinder structure are respectively provided with an outdoor evacuation stair for evacuation and maintenance of personnel on the ship reception chamber in emergency.

6. The upstream submerged ship lift dam-passing navigation arrangement of claim 1, wherein: a water retaining wall is arranged between the downstream of the ship lift compartment chamber and the totally-enclosed cylinder structures at the two sides.

7. The upstream submerged ship lift dam-passing navigation arrangement of claim 1, wherein: and a navigation aqueduct, a navigation open channel and a navigation tunnel are arranged at the downstream of the cabin chamber of the ship lift.

8. The upstream submerged ship lift dam-passing navigation arrangement of claim 7, wherein: and a flood blocking gate is arranged at the entrance of the navigation tunnel.

9. The upstream submerged ship lift dam-passing navigation arrangement of claim 7, wherein: the ship lift main body section downstream is equipped with navigation aqueduct, navigation open channel and navigation tunnel, the operation water level H4 in navigation aqueduct, navigation open channel and the navigation tunnel is not less than the highest navigation water level H1 of upper reaches.

10. The upstream submerged ship lift dam-passing navigation arrangement of claim 1, wherein: the total weight of the balance weight is smaller than the total weight of the ship reception chamber for adding water, and the arrangement of the balance weight enables the output torque of the main lifting equipment when the ship reception chamber is lifted above the water surface to be equal to the output torque of the ship reception chamber under water; or the balance weight is configured to enable the driving power of the main lifting equipment when the ship reception chamber ascends and descends on water to be equal to the driving power when the ship reception chamber is underwater.

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