A water retaining device and method for a gate suitable for large fluctuations in water level in a ship lift channel

Abstract

A gate head water retaining device and method suitable for use in situations where the water level in a ship lift channel fluctuates significantly. A track is arranged above the top of the gate head channel. A working door hoist and an inspection door hoist move left and right along the track and lift and move the working door and inspection door. The working door includes a working gate with a folding door and a multi-section working stoplog door. A certain number of working stoplog doors are placed from bottom to top in the working door slot, and the working gate is placed on top of the working stoplog door. The adaptability range of the working door matches the channel water level. The inspection door includes an inspection gate and a multi-section inspection stoplog door. When adjusting the gate position, a certain number of inspection stoplog doors are placed from bottom to top in the inspection door slot, and the inspection gate is placed on top of the inspection stoplog door. A certain number of working stoplog doors and the working gate retain water from the gate head of the ship lift. The present invention provides a gate head water retaining device and method suitable for use in situations where the water level in a ship lift channel fluctuates significantly. The device can adapt to large changes in channel water level and is also beneficial in reducing the workload of gate position adjustment.

Description

Technical Field

[0001] The invention relates to a water retaining device at a ship lift lock, and in particular to a water retaining device at a ship lift lock suitable for a ship lift channel with a large water level change and a method thereof. Background Art

[0002] Because ship lifts typically operate vertically, when the ship compartment docks with the lock head, the docking seal extends to connect the compartment with the lock head's working gate, creating a passageway for the ship. Therefore, the docking seal surface on the lock head's working gate must remain relatively fixed to the ship compartment. The miter gate structure of a ship lock moves as a whole during operation, making it impossible to provide a relatively fixed docking seal surface and, therefore, unsuitable for ship lifts.

[0003] The current ship lift gate is a U-shaped flat gate with a folding gate. The folding gate opens and closes by tilting and sinking, relying on a hydraulic cylinder to overcome the gate's gravity. Therefore, the folding gate cannot be designed to be too large. The size of the folding gate determines the fluctuations in the waterway water level that the gate can accommodate, and therefore the fluctuations are limited. During peak-shaving operations at hub power stations or when water levels in a river basin are being adjusted, the waterway water level can fluctuate significantly. A single gate cannot meet the requirements of retaining water and ensuring navigation. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a gate head water retaining device and method suitable for large changes in water level in the ship lift channel, which does not take up extra space and can also adapt to large changes in water level in the channel, thereby reducing the workload of gate position adjustment.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A gate head water retaining device suitable for large fluctuations in the water level of a ship lift channel comprises a working gate slot, an inter-gate water discharge system, an inspection gate slot, and a water retaining gate slot, which are arranged outward from the ship lift cabin section; a working gate pier, a plurality of working stopgate piers, an inspection gate pier, a plurality of inspection stopgate piers, and an inspection platform are arranged on the top of the gate head navigation channel; a track is arranged above the top of the gate head navigation channel, and a working gate hoist and an inspection gate hoist move left and right along the track to lift and move the working gate and the inspection gate;

[0007] The working gate includes a working gate with a lying gate and a multi-section working stoplog gate; a certain number of working stoplog gates are placed in the working gate groove from bottom to top, and the working gate is placed on top of the working stoplog gate. The adaptability range of the working gate matches the water level elevation of the waterway;

[0008] The inspection door includes an inspection gate and multiple sections of inspection stop beam doors; when adjusting the door position, a certain number of inspection stop beam doors are placed in the inspection door groove from bottom to top, and the inspection gate is placed on the top of the inspection stop beam door; a certain number of working stop beam doors and working gates block water from the ship lift gate.

[0009] The water level variation that the lying gate adapts to is the height h1 of one section of the working beam gate.

[0010] The lying gate on the working gate is usually in a closed state; when the ship compartment is docked with the lock head, the lying gate opens to form a ship passing channel; when the water level fluctuation exceeds the adaptability of the lying gate, a section of the working beam gate is added or removed to readjust the position of the working gate; the adjustment of the working gate and the working beam gate is carried out under waterless conditions, and the lifting and lowering of the working gate and the working beam gate are carried out by the working gate opening and closing machine.

[0011] When the ship lift is in normal navigation state, the water depth from the top of the maintenance stoplog door stacked in the maintenance door slot to the water surface h0 ≥ the designed navigation depth h 设 The maintenance gate and redundant maintenance stacked beam doors are stacked on the maintenance gate pier and the maintenance stacked beam door pier respectively, and the maintenance gate is fixed by the maintenance gate opening and closing machine.

[0012] The track is an elevated structure with steel track beams supported by multiple groups of concrete columns. The track is laid on the track beams, and the working door hoist and the inspection door hoist share the track.

[0013] The inter-door drainage system includes a drainage pipe, which is arranged in multiple sections and connected by flanges; a trash rack is installed at the end of the drainage pipe, and an energy dissipation valve, a maintenance valve and a working valve are installed at intervals on the drainage pipe.

[0014] A method for retaining water at a ship lift gate when the water level in a ship lift channel fluctuates significantly is disclosed, comprising the following steps:

[0015] Step 1): When the water level gauge of the ship lift channel detects that the water level has risen beyond the adaptability range of the working gate, it is determined that a working stoplog gate is added to block water at the gate head;

[0016] Step 2): Operate the maintenance door hoist and lower the maintenance door into the maintenance door slot to block the water; after it is in place, disengage the hydraulic grab beam of the maintenance door hoist from the maintenance door; and operate the maintenance door hoist to a position that does not affect the operation of the working door hoist and the working stopgate;

[0017] Step 3): Use the door drainage system to drain part of the water between the working door and the inspection door, so that the working door can be opened and closed under water-free conditions;

[0018] Step 4): Operate the working door hoist to lift the working door onto the working door support pier; after it is in place, disengage the hydraulic grab beam of the working door hoist from the working door;

[0019] Step 5): Operate the working door hoist to the appropriate working stopgate pier, located on top of the correctly numbered working stopgate; use the working door hoist to lift a section of the working stopgate and drop it into the working door slot; after it is in place, disengage the hydraulic grab beam of the working door hoist from the working stopgate;

[0020] Step 6): Run the working door hoist to the working door pier, located at the top of the working door; use the working door hoist to lift the working door and drop it into the working door slot; after it is in place, disengage the hydraulic grab beam of the working door hoist from the working door, and lift the hydraulic grab beam of the working door hoist to the designed height without affecting the navigation clearance height of the waterway;

[0021] Step 7): Operate the maintenance door hoist and lift the maintenance door at a low speed and a small stroke. The waterway water flows through the gap between the maintenance door and the maintenance stoplog door and fills the space between the working door and the maintenance door. When the water level between the working door and the maintenance door is flush with the water level in the waterway, lift the maintenance door onto the maintenance door pier. After it is in place, disengage the hydraulic grab beam of the maintenance door hoist from the maintenance door.

[0022] Step 8): Run the inspection door hoist to the inspection stoplog door pier and locate it on top of the correctly numbered inspection stoplog door; use the inspection door hoist to lift a section of the inspection stoplog door and drop it into the inspection door slot; after it is in place, disengage the hydraulic grab beam of the inspection door hoist from the inspection stoplog door;

[0023] Step 9): Run the maintenance door opening and closing machine to the top of the maintenance door, connect and tighten the maintenance door through the hydraulic grab beam of the maintenance door opening and closing machine, and the water retaining height is increased.

[0024] A method for retaining water at a ship lift gate when the water level in a ship lift channel fluctuates significantly is disclosed, comprising the following steps:

[0025] Step 1): When the water level gauge of the ship lift channel detects that the water level has dropped below the minimum threshold depth of the working gate, it is determined that one section of the working stoplog gate should be reduced to block water at the gate head;

[0026] Step 2): Operate the maintenance door hoist and lift the maintenance door to the maintenance door slot to block water; after it is in place, disengage the hydraulic grab beam of the maintenance door hoist from the maintenance door, and operate the maintenance door hoist to a position that does not affect the operation of the working door hoist and the working stopcock;

[0027] Step 3): Use the door drainage system to drain part of the water between the working door and the inspection door, so that the working door and the adjacent working stoplog door in the working door slot can be opened and closed under water-free conditions;

[0028] Step 4): Operate the working door hoist to lift the working door onto the working door support pier; after it is in place, disengage the hydraulic grab beam of the working door hoist from the working door;

[0029] Step 5): Run the working door hoist to the working door slot, lift a section of the working stopgate door through the working door hoist and drop it onto the corresponding numbered working stopgate door pier; after it is in place, disengage the hydraulic grab beam of the working door hoist from the working stopgate door;

[0030] Step 6): Run the working door hoist to the working door pier, located at the top of the working door; use the working door hoist to lift the working door and drop it into the working door slot; after it is in place, disengage the hydraulic grab beam of the working door hoist from the working door, and lift the hydraulic grab beam of the working door hoist to the designed height without affecting the navigation clearance height of the waterway;

[0031] Step 7): Operate the inspection door hoist and lift the inspection door at a low speed and a small stroke. The waterway water flows through the gap between the inspection door and the inspection stoplog door and fills the space between the working door and the inspection door. When the water level between the working door and the inspection door is flush with the water level of the waterway, lift the inspection door to the inspection door pier. After it is in place, disengage the hydraulic grab beam of the inspection door hoist from the inspection door.

[0032] Step 8): Run the maintenance door hoist to the maintenance door slot, lift a section of the maintenance stop beam door through the maintenance door hoist and drop it to the maintenance stop beam door pier with the corresponding number; after it is in place, disengage the hydraulic grab beam of the maintenance door hoist from the maintenance stop beam door;

[0033] Step 9): Run the maintenance door opening and closing machine to the top of the maintenance door, connect the hydraulic grab beam of the maintenance door opening and closing machine to the maintenance door and tighten it, and the water retaining height is reduced.

[0034] A ship lift lock head water retaining method suitable for a ship lift when the lock head water retaining device is shut down for maintenance due to a large fluctuation in the water level of the ship lift channel, characterized by:

[0035] Step 1): Run the maintenance door hoist to the maintenance door slot, lift the maintenance stop beam door through the maintenance door hoist and drop it onto the maintenance stop beam door pier with the corresponding number; after it is in place, disengage the hydraulic grab beam of the maintenance door hoist from the maintenance stop beam door;

[0036] Step 2): Repeat step 1 until only No. 1 maintenance stoplog door remains in the maintenance door slot;

[0037] Step 3): Run the maintenance door hoist to the maintenance door slot, lift the No. 1 maintenance stop beam door through the maintenance door hoist and drop it into the water retaining door slot; after it is in place, disengage the hydraulic grab beam of the maintenance door hoist from the No. 1 maintenance stop beam door;

[0038] Step 4): Operate the inspection door hoist to the pier of the inspection stoplight door with the appropriate number and locate it on the top of the next section of inspection stoplight door. Use the inspection door hoist to lift the inspection stoplight door of this section and drop it into the water retaining gate slot. After it is in place, disengage the hydraulic grab beam of the inspection door hoist from the inspection stoplight door of this section.

[0039] Step 5): Repeat step 4 until all 8 sections of the maintenance stop beam door are dropped into the water retaining gate slot; after they are in place, disengage the hydraulic grab beam of the maintenance door hoist from the last section of the maintenance stop beam door;

[0040] Step 6): Operate the maintenance door hoist and lower the maintenance door into the water retaining door slot; after it is in place, keep the hydraulic grab beam of the maintenance door hoist connected to the maintenance door and tighten it;

[0041] Step 7): Use the inter-door drainage system to drain the water between the working door and the inspection door, drain the navigation channel, and enable the working door and the working beam door in the working door channel to be opened and closed under water-free conditions.

[0042] The present invention provides a gate head water retaining device and method suitable for large fluctuations in water level in a ship lift channel, which has the following technical effects:

[0043] 1) By adopting working gate slots, inspection gate slots and water retaining gate slots, and setting working gate piers, working beam gate piers, inspection gate piers and inspection beam gate piers to place working gates and inspection gates, using working gate hoists and inspection gate hoists to increase or decrease working gates and using the inter-gate drainage system to adjust the water level, the function of raising or lowering the working gate position can be achieved when the waterway water level rises or falls significantly. It has the characteristics of compact structure, high efficiency and cost saving.

[0044] 2) The working gate hoist and inspection gate hoist are single-way cranes mounted on a concrete bent frame. They are of the same model and share a common track. During normal operation, the two cranes operate simultaneously, improving efficiency. If one crane fails and stops operating, the other crane can adjust the gate position of the ship lift, improving the safety and reliability of the gate's water retaining device.

[0045] 3) The working stopgate piers and the inspection stopgate piers are composed of a series of pier groups with different heights. Each group of piers is used to stack stopgates with corresponding numbers. The elevation of each group of piers is determined by adding the minimum navigational height to the minimum navigational height corresponding to the last section of stopgate stacked. This ensures that the stopgates stacked on the stopgate piers meet the minimum navigational height requirement at any navigational level, thus avoiding the need to construct piers of the same height, reducing workload and cost, and saving working time when adjusting the number of stopgates.

[0046] 4) When the working gate position is adjusted and the gate drainage system is used to drain part of the water between the working gate and the inspection gate, it is only necessary to drain the water between the two gates to the working stoplog gate that does not need to be adjusted. There is no need to drain the water between the gates, which reduces the drainage time of the drainage system and the time for the gates to be filled with water after the working gate position is adjusted, thereby improving work efficiency.

[0047] 5) The maintenance platform is usually used for stacking working stop beams and maintenance stop beams. It can also be used for maintenance work such as water stop, guide device, and structural corrosion protection of working door and maintenance door, which facilitates the maintenance of the gate head water retaining device, shortens the maintenance time of the ship lift, and improves maintenance efficiency.

[0048] 6) A water retaining gate groove is set at the front end of the waterway. When the ship lift needs to stop for a long time to retain water, the inspection door can be lowered into the water retaining gate groove by using the inspection door hoist. At the same time, the water between the inspection door and the working door can be drained by using the inter-door drainage system, which facilitates the dredging and inspection of the waterway and improves the inspection and maintenance efficiency of hydraulic structures.

[0049] 7) Setting up multiple sections of working stoplog doors and adjusting the door position of the working gate by increasing or decreasing the number of working stoplog doors through the working gate hoist can reduce the size of the working gate, thereby achieving the effect of reducing the maximum lifting weight of the working gate hoist and reducing the construction and installation costs of the working gate hoist. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The present invention will be further described below with reference to the accompanying drawings and examples:

[0051] Figure 1 It is a schematic diagram of the arrangement of the present invention.

[0052] Figure 2 Schematic diagram of water retaining of the working door in the present invention.

[0053] Figure 3 It is a schematic diagram of the working door in the present invention.

[0054] Figure 4 Schematic diagram of water retaining of the inspection door in the present invention.

[0055] Figure 5 Schematic diagram of the inter-door drainage system of the present invention.

[0056] In the figure: working door 1, inspection door 2, working door slot 3, inspection door slot 4, water retaining door slot 5, working gate pier 6, working stop beam door pier 7, inspection gate pier 8, inspection stop beam door pier 9, working door opening and closing machine 10, inspection door opening and closing machine 11, door inter-door drainage system 12, inspection platform 13, working gate 1-1, working stop beam door 1-2, lying door 1-3, inspection gate 2-1, inspection stop beam door 2-2, drainage pipe 12-1, trash rack 12-2, energy dissipation valve 12-3, inspection valve 12-4, working valve 12-5, control system 12-6. DETAILED DESCRIPTION

[0057] like Figure 1 As shown, a gate head water retaining device suitable for large changes in water level in a ship lift channel includes a working gate 1, an inspection gate 2, a working gate slot 3, an inspection gate slot 4, a water retaining gate slot 5, a working gate pier 6, a working stop beam gate pier 7, an inspection gate pier 8, an inspection stop beam gate pier 9, a working gate opening and closing machine 10, an inspection gate opening and closing machine 11, a gate inter-gate drainage system 12, and an inspection platform 13.

[0058] The water retaining system of the ship lift lock extends outward from the ship lift cabin section and is respectively provided with a working gate slot 3, an inter-gate drainage system 12, an inspection gate slot 4, and a water retaining gate slot 5.

[0059] On the top of the gate channel are arranged a working gate pier 6, a plurality of working stoplog gate piers 7, a maintenance gate pier 8, a plurality of maintenance stoplog gate piers 9 and a maintenance platform 13.

[0060] A working door hoist 10 and an inspection door hoist 11 are arranged on the track at the top of the gate channel.

[0061] like Figure 2-3 As shown, the working door 1 is composed of a working gate 1-1 with a lying door 1-3 and a multi-section working stoplog door 1-2, and the working gate 1-1 is placed on top of the working stoplog door 1-2.

[0062] The main part of the working gate 1-1 with the lying door 1-3 is the existing technology, as mentioned in the "A disassembly and assembly tool and method of the hydraulic cylinder of the lying door of the working gate of the ship lift lock" with application number "202111524437.1".

[0063] The working gate 1-1 is equipped with a hydraulic hoist, locking device, hydraulic pump station, and other equipment for the folding gate 1-3. Lifting lugs are installed on both sides of the top of the working gate 1-1 and the working stop beam door 1-2, and side and bottom water stops are installed on both sides and the bottom. When placed in the gate slot 3, they form a sealed structure under the action of gravity and unilateral water pressure. The folding gate 1-3 on the working gate 1-1 is normally closed. After the ship compartment docks with the gate head, the folding gate 1-3 opens to form a passage for ships. The folding gate 1-3 can adapt to water level fluctuations of the height h1 of one section of the working stop beam door 1-2. When the water level fluctuation exceeds the adaptability of the folding gate 1-3, the position of the working gate 1-1 is readjusted by adding or removing one section of the working stop beam door 1-2. Adjustments of the working gate 1-1 and the working stop beam door 1-2 are performed under dry conditions. The lifting and lowering of the working gate 1 are performed by the working gate hoist 10.

[0064] like Figure 4 As shown, the inspection door 2 includes an inspection gate 2-1 and a multi-section inspection stop beam door 2-2. The main function of the inspection door 2 is to assist the working door 1 in adjusting the door position of the working door 1 under waterless conditions according to the water level changes in the ship lift channel. The inspection door 2 selects an appropriate number of inspection stop beam doors 2-2 according to the door position adjustment requirements of the working door 1 and the water level of the channel. The inspection stop beam doors 2-2 and the inspection gate 2-1 are stacked in the inspection gate slot 4 to block water at the ship lift gate when the number of working stop beam doors 1-2 is adjusted. At this time, the inspection gate 2-1 is stacked on top of the inspection stop beam door 2-2. The lifting and lowering of the inspection gate 2-1 and the inspection stop beam door 2-2 are carried out by the inspection door opening and closing machine 11.

[0065] When the ship lift is in normal navigation state, the water depth from the top of the maintenance stoplog door 2-2 stacked in the maintenance door slot 4 to the water surface h0 ≥ the designed navigation depth h 设 The maintenance gate 2-1 and the redundant maintenance stoplog gate 2-2 are stacked on the maintenance gate pier 8 and the maintenance stoplog gate pier 9 respectively, and the maintenance gate 2-1 is fixed by the maintenance gate hoist 11. The maintenance gate 2 can also serve as a flood control and water retaining gate for the ship lift channel. When used as a flood control and water retaining gate, the maintenance gate 2 is placed in the water retaining gate groove 5.

[0066] like Figure 1 As shown, the working door hoist 10 and the inspection door hoist 11 are bridge cranes mounted on a concrete bent, reciprocating in the direction of the water flow. They are of the same model and share a common track, which is laid on two lines of steel track beams, which are erected on top of the concrete columns. The working door hoist 10 and the inspection door hoist 11 serve as backup for each other. If one fails and stops operating, the other can complete the adjustment of the ship lift's gate position.

[0067] like Figure 5As shown, the inter-door drainage system 12 includes a drainage pipe 12-1, which is arranged in multiple sections and connected by flanges. A trash rack 12-2 is installed at the end of the drainage pipe 12-1. An energy dissipation valve 12-3, a service valve 12-4, and a working valve 12-5 are installed at appropriate locations on the drainage pipe 12-1. A control system 12-6 is located on one side of the drainage pipe 12-1. The control system 12-6 electrically controls each valve. Activating a corresponding button on the control system 12-6 opens the corresponding valve.

[0068] When using the inter-door drainage system 12 to drain part of the water between the working door 1 and the inspection door 2, if it is necessary to add a section of the working stopgate door 1-2 at this time, it is only necessary to drain the water between the working door 1 and the inspection door 2 until the bottom of the working gate 1-1 is completely exposed; if it is necessary to reduce a section of the working stopgate door 1-2 at this time, it is only necessary to drain the water between the working door 1 and the inspection door 2 until the bottom of the first section of the working stopgate door 1-2 below the working gate 1-1 is completely exposed.

[0069] like Figure 1 As shown, the maintenance platform 13 is a concrete bridge structure, and piers for the working door 1 and the maintenance door 2 are arranged on the table top of the maintenance platform 13, which can be used for maintenance work such as water stopping, guiding device, and structural corrosion protection of the working door 1 and the maintenance door 2. The working door 1 and the maintenance door 2 are rotated for maintenance according to the need of water blocking at the gate head.

[0070] Number of sections n of working stoplog doors 1-2 工 The maximum fluctuation of water level in the channel h 变 Assume that the height of each section of the stoplog door 1-2 is h1, then n 工 =h 变 / h1-1.

[0071] The number of sections of the maintenance stoplog door 2-2 is determined by the number of sections of the working stoplog door 1-2. If the height of each section of the maintenance stoplog door 2-2 is h2, then n 检 =n 工 +1.

[0072] The height h2 of the maintenance stoplog door 2-2 is less than the height h1 of the working stoplog door 1-2 and satisfies h1×n 工 <h2×n 检 , it can be achieved that when the same number of working stoplog doors 1-2 and maintenance stoplog doors 2-2 are added or removed synchronously in the working door slot 3 and the maintenance door slot 4, the water depth from the door top of the maintenance stoplog door 2-2 stacked in the maintenance door slot 4 to the water surface h0 ≥ the designed navigation depth h 设 Moreover, it is only necessary to lower the inspection gate 2-1 to block the water in the channel, thereby meeting normal navigation requirements and performing rapid water blocking.

[0073] For example, if the top elevation of the channel is 185m and the channel water level changes from 145m to 175m, h 变 =30, the water level fluctuation adapted by the lying gates 1-3 is 3.75m, so the height of each section of the working stoplog gates 1-2 is 3.75m, and the height of each section of the maintenance stoplog gates 2-2 is 3.5m. 工 =h 变 / h1-1=30 / 3.75-1=7;n 检 =n 工 +1=8.

[0074] That is, the working door 1 can be set as a working gate 1-1 and 7 sections of working beam doors 1-2. The 7 sections of working beam doors 1-2 are numbered 1-7, and the height of each section of the working beam door 1-2 is 3.75m.

[0075] The inspection door 2 can be set as an inspection gate 2-1 and 8 sections of inspection stop beam doors 2-2. The 8 sections of inspection stop beam doors 2-2 are numbered 1-8, and the height of each section of the inspection stop beam door 2-2 is 3.5m.

[0076] Minimum navigation clearance height h 净 It is 18m, so the height h2 of the stacking plane of the maintenance gate pier 8 and the maintenance platform 13 from the water surface at the highest navigation water level is ≥193m.

[0077] The working stopgate pier 7 is composed of a series of pier groups of different heights, which can be arranged into three groups: pier ①, pier ②, and pier ③. Pier ① has working stopgates 1-2 numbered 1-3 stacked from top to bottom, pier ② has working stopgates 1-2 numbered 4-5 stacked from top to bottom, pier ③ has working stopgates 1-2 numbered 6 stacked, and the maintenance platform 13 has working stopgates 1-2 numbered 7 stacked. The height of each pier group is h 工支 The lowest navigable water level h within the water level range adapted by the last section of the working stoplog gate 1-2 低航 OK, that is h 工支 =h 低航 +h 净 The working stopgates 1-2 stacked on the working stopgate pier 7 can meet the minimum navigation clearance height requirement at any navigation water level. The last section of the working stopgate 1-2 stacked on pier ① is numbered 3, and its adapted water level range is 156.25m-160m. The calculated elevation of pier ① = 156.25 + 18 = 174.25m, which is lower than the elevation of the top of the navigation channel. Therefore, pier ① can be set at the minimum elevation at the top of the navigation channel to facilitate construction and use. 工支 It can be determined as 185.3m. The calculated elevation of pier ② is 163.75+18=181.75m, and h can be determined in the same way. 工支The calculated elevation of pier ③ is 167.5+18=185.5m, which can be used to determine h 工支 It is 185.5m.

[0078] The maintenance stopgate piers 9 are composed of a series of pier groups of different heights, which can be arranged into three groups: pier A, pier B, and pier C. Pier A is stacked with maintenance stopgates 2-2 numbered 1-3 from top to bottom, pier B is stacked with maintenance stopgates 2-2 numbered 4-5 from top to bottom, pier C is stacked with maintenance stopgates 2-2 numbered 6, and the maintenance platform 13 is stacked with maintenance stopgates 2-2 numbered 7-8. The elevation of each pier group is h. 检支 The lowest navigable water level h corresponding to the last section of the stacked stoplog door 低航 OK, that is h 检支 =h 低航 +h 净 , which ensures that the maintenance stopgates 2-2 stacked on the maintenance stopgate piers 9 meet the minimum navigation clearance height requirement at any navigation water level. The number of maintenance stopgates 2-2 in the maintenance gate slots 4 increases and decreases synchronously with the number of working stopgates 1-2 in the working gate slots 3. Therefore, the maintenance stopgate pier 9-1 is consistent with the working stopgate pier 7-1, the maintenance stopgate pier 9-2 is consistent with the working stopgate pier 7-2, and the maintenance stopgate pier 9-3 is consistent with the working stopgate pier 7-3.

[0079] Example 1:

[0080] When the water level in the channel rises from 145m to 148.75m, and the water level monitoring system determines that the water level will continue to rise, it is necessary to add a working stoplog door 1-2 to adjust the position of the working gate 1-1. At this time, only the working gate 1-1 is in the working gate slot 3, and the inspection door 2 is not in the inspection gate slot 4.

[0081] Step 1): Operate the inspection door hoist 11 and lower the inspection door 2-1 into the inspection door slot 4 to block water. After the inspection door 2-1 is lowered into place, disengage the hydraulic grab beam of the inspection door hoist 11 from the inspection door 2-1, and operate the inspection door hoist 11 to the left to a position where it does not affect the operation of the working door hoist 10 on the working stopgate door 1-2.

[0082] Step 2): Use the door drainage system 12 to drain the water between the working door 1 and the inspection door 2, so that the working door 1-1 can be opened and closed under water-free conditions.

[0083] Step 3): Run the working door opening and closing machine 10, lift the working gate 1-1 and move it to the working gate pier 6 (all structures are placed directly on the pier, only the maintenance gate needs to be connected to the bridge crane grab beam), so that the hydraulic grab beam of the working door opening and closing machine 10 is disengaged from the working gate 1-1.

[0084] Step 4): Operate the working door hoist 10 and move it to the top of the working stopgate pier 7 with the appropriate number, located on the top of the No. 1 working stopgate, lift the No. 1 working stopgate by the working door hoist 10 and drop it into the working door slot 3. After it is in place, disengage the hydraulic grab beam of the working door hoist 10 from the No. 1 working stopgate.

[0085] Step 5): Run the working door opening and closing machine 10 and move it above the working gate pier 6, located on the top of the working gate 1-1; lift the working gate 1-1 through the working door opening and closing machine 10 and drop it into the working gate slot 3. After it is in place, disengage the hydraulic grab beam of the working door opening and closing machine 10 from the working gate 1-1, and lift the hydraulic grab beam of the working door opening and closing machine 10 to the designed height without affecting the navigation clearance height of the waterway.

[0086] Step 6): Operate the inspection door opening and closing machine 11 to lift the inspection door 2-1 at a low speed and a small stroke. The waterway water is filled between the working door 1 and the inspection door 2 through the gap between the inspection door 2-1 and the inspection beam door 2-2. When the water level between the working door 1 and the inspection door 2 is flush with the waterway water level, the inspection door 2-1 is lifted and moved to the inspection door pier 8. After it is in place, the hydraulic grab beam of the inspection door opening and closing machine 11 is disengaged from the inspection door 2-1.

[0087] Step 7): Run the maintenance door hoist 11 to the top of the No. 1 maintenance stop beam door, lift the No. 1 maintenance stop beam door through the maintenance door hoist 11 and drop it into the maintenance door slot 4; after it is in place, disengage the hydraulic grab beam of the maintenance door hoist 11 from the No. 1 maintenance stop beam door.

[0088] Step 8): Operate the access door hoist 11 to the top of the access gate buttress 8, positioned on top of the access gate 2-1. Connect the hydraulic grab beam of the access door hoist 11 to the access gate 2-1 and tighten it to prevent the access gate 2-1 from capsizing in strong winds. The water retaining height is increased.

[0089] For every subsequent 3.75m change in water level, one section of the stacked beam will be added or removed.

[0090] During normal ship passage, the water retaining device at the gate does not need to be adjusted, and only the small door needs to be lowered to open and close.

[0091] Example 2:

[0092] When the waterway water level drops from 175m to 171.25m, and the waterway water level monitoring system determines that the waterway water level will continue to drop, it is necessary to reduce one section of the working stoplog door 1-2 to adjust the position of the working gate 1-1. At this point, the working gate slot 3 contains the working gate 1-1 and seven sections of the working stoplog door 1-2, and the maintenance gate slot contains seven sections of the maintenance stoplog door 2-2.

[0093] Step 1): Run the inspection door opening and closing machine 11 to lift the inspection door 2-1 to the inspection door slot 4 to block the water; after it is in place, disengage the hydraulic grab beam of the inspection door opening and closing machine 11 from the inspection door 2-1, and run the inspection door opening and closing machine 11 to the left to a position where it does not affect the operation of the working door opening and closing machine 10 to move the working beam door 1-2.

[0094] Step 2): Use the inter-door drainage system 12 to drain part of the water between the working door 1 and the inspection door 2, completely exposing the No. 7 working beam door adjacent to the working door 1, so that the working gate 1-1 and the No. 7 working beam door in the working door slot 3 can be opened and closed under water-free conditions.

[0095] Step 3): Run the working door opening and closing machine 10, lift the working door 1-1 and move it to the working door pier 6; after it is in place, disengage the hydraulic grab beam of the working door opening and closing machine 10 from the working door 1-1.

[0096] Step 4): Run the working door hoist 10 to the working door slot 3, lift the No. 7 working beam door through the working door hoist 10 and drop it onto the corresponding numbered working beam door pier 7; after it is in place, disengage the hydraulic grab beam of the working door hoist 10 from the No. 7 working beam door.

[0097] Step 5): Run the working door opening and closing machine 10 and move it to the working gate pier 6, located on the top of the working gate 1-1; use the working door opening and closing machine 10 to lift the working gate 1-1 and drop it into the working gate slot 3; after it is in place, disengage the hydraulic grab beam of the working door opening and closing machine 10 from the working gate 1-2, and lift the hydraulic grab beam of the working door opening and closing machine 10 to the designed height without affecting the navigation clearance height of the waterway.

[0098] Step 6): Run the maintenance door opening and closing machine 11 to lift the maintenance door 2-1 at low speed and small stroke. The waterway water is filled into the space between the working door 1 and the maintenance door 2 through the gap between the maintenance door 2-1 and the maintenance beam door 2-2-7. When the water level between the working door 1 and the maintenance door 2 is flush with the water level of the waterway, the maintenance door 2-1 is lifted to the maintenance door pier 8. After it is in place, the hydraulic grab beam of the maintenance door opening and closing machine 11 is disengaged from the maintenance door 2-1.

[0099] Step 7): Run the maintenance door hoist 11 to the maintenance door slot 4, lift the No. 7 maintenance beam door through the maintenance door hoist 11 and drop it onto the maintenance beam door pier with the corresponding number; after it is in place, disengage the hydraulic grab beam of the maintenance door hoist 11 from the No. 7 maintenance beam door.

[0100] Step 8): Run the maintenance door opening and closing machine 11 to the top of the maintenance door 2-1, so that the hydraulic grab beam of the maintenance door opening and closing machine 11 is connected and tightened with the maintenance door 2-1, and the water retaining height is reduced.

[0101] Example 3:

[0102] When the ship lift needs to be stopped for a long time for maintenance and water blocking, in order to meet safety requirements, the maintenance door 2 can be adjusted to the highest water blocking level. The specific operation process is as follows:

[0103] Step 1): Run the maintenance door hoist 11 to the maintenance door slot 4, lift the maintenance stop beam door 2-2 through the maintenance door hoist 11 and drop it onto the maintenance stop beam door pier 9 with the corresponding number; after it is in place, disengage the hydraulic grab beam of the maintenance door hoist 11 from the maintenance stop beam door 2-2.

[0104] Step 2): Repeat step 1) until only No. 1 maintenance stoplog door remains in the maintenance door slot 4.

[0105] Step 3): Run the maintenance door hoist 11 to the maintenance door slot 4, lift the No. 1 maintenance beam door through the maintenance door hoist 11 and drop it to the water retaining door slot 5; after it is in place, disengage the hydraulic grab beam of the maintenance door hoist 11 from the No. 1 maintenance beam door.

[0106] Step 4): Operate the maintenance door hoist 11 and move it to the maintenance stoplog door pier 9 with the appropriate number, and locate it on the top of the next section of the maintenance stoplog door 2-2. Use the maintenance door hoist 11 to lift the section of the maintenance stoplog door 2-2 and drop it into the water retaining gate groove 5. After it is in place, disengage the hydraulic grab beam of the maintenance door hoist 11 from the section of the maintenance stoplog door 2-2.

[0107] Step 5): Repeat step 4) until all 8 sections of maintenance stop beam doors 2-2 are dropped into the water retaining gate groove 5; after they are in place, the hydraulic grab beam of the maintenance door hoist 11 is disengaged from the last section of maintenance stop beam door 2-2.

[0108] Step 6): Run the maintenance door opening and closing machine 11, and drop the maintenance door 2-1 into the water retaining door groove 5. After it is in place, keep the hydraulic grab beam of the maintenance door opening and closing machine 11 connected to the maintenance door 2-1 and tighten it.

[0109] Step 7): Use the inter-door drainage system 12 to drain the water between the working door 1 and the inspection door 2, drain the navigation channel, and enable the working gate 1-1 and the working beam door 1-2 in the working door slot 3 to be opened and closed under water-free conditions.

Claims

1. A gate head water retaining device suitable for large fluctuations in water level in a ship lift channel, characterized by: The invention comprises a working gate slot (3), an inter-gate drainage system (12), an inspection gate slot (4), and a water retaining gate slot (5) which are arranged outward from the ship lift cabin section; a working gate pier (6), a plurality of working stop beam gate piers (7), an inspection gate pier (8), a plurality of inspection stop beam gate piers (9), and an inspection platform (13) are arranged on the top of the lock head navigation slot; a track is arranged above the top of the lock head navigation slot, and a working gate hoist (10) and an inspection gate hoist (11) move left and right along the track and lift and move the working gate (1) and the inspection gate (2); The working door (1) comprises a working gate (1-1) with a lying door (1-3) and a multi-section working stoplog door (1-2); a certain number of working stoplog doors (1-2) are placed in the working door slot (3) from bottom to top, the working gate (1-1) is placed on top of the working stoplog door (1-2), and the adaptability range of the working door (1) matches the water level elevation of the waterway; The inspection door (2) comprises an inspection gate (2-1) and a plurality of inspection stop beam doors (2-2); when adjusting the door position, a certain number of the inspection stop beam doors (2-2) are placed in the inspection door slot (4) from bottom to top, and the inspection gate (2-1) is placed on top of the inspection stop beam doors (2-2); a certain number of working stop beam doors (1-2) and the working gate (1-1) block water from the ship lift lock head; The water level variation adapted by the lying gate (1-3) is the height h1 of one section of the working stoplog gate (1-2); When the ship lift is in normal navigation state, the water depth from the top of the maintenance stoplog door (2-2) stacked in the maintenance door slot (4) to the water surface h0 ≥ the designed navigation depth h 设 The maintenance gate (2-1) and the redundant maintenance stopper gate (2-2) are respectively stacked on the maintenance gate support pier (8) and the maintenance stopper gate support pier (9), and the maintenance gate (2-1) is fixed by the maintenance gate opening and closing machine (11); The inter-door drainage system (12) comprises a drainage pipe (12-1), which is arranged in multiple sections and connected via flanges; a trash rack (12-2) is installed at the end of the drainage pipe (12-1), and an energy dissipation valve (12-3), a maintenance valve (12-4), and a working valve (12-5) are installed at intervals on the drainage pipe (12-1).

2. The gate head water retaining device suitable for large fluctuations in water level in a ship lift channel according to claim 1, characterized in that: The folding door (1-3) on the working gate (1-1) is usually in a closed state; when the ship compartment is docked with the lock head, the folding door (1-3) is opened to form a ship passage; when the water level fluctuation exceeds the adaptability of the folding door (1-3), a section of the working stop beam door (1-2) is added or reduced to readjust the position of the working gate (1-1); the adjustment of the working gate (1-1) and the working stop beam door (1-2) is carried out under waterless conditions, and the lifting and lowering of the working gate (1-1) and the working stop beam door (1-2) are carried out by the working gate opening and closing machine (10).

3. The gate head water retaining device suitable for large fluctuations in water level in a ship lift channel according to claim 1, characterized in that: The track is an elevated structure, with a steel track beam supported by multiple groups of concrete columns. The track is laid on the track beam, and the working door hoist (10) and the inspection door hoist (11) share the track.

4. A method for retaining water at the ship lift gate when the water level in a ship lift channel fluctuates significantly according to any one of claims 1 to 3, comprising the following steps: Step 1): When the water level gauge of the ship lift channel detects that the water level rises beyond the adaptation range of the working gate (1), it is determined that a section of working stoplog gate (1-2) is added to block water at the gate head; Step 2): Operate the inspection door hoist (11) and drop the inspection door (2-1) into the inspection door slot (4) to block water; after it is in place, disengage the hydraulic grab beam of the inspection door hoist (11) from the inspection door (2-1); and operate the inspection door hoist (11) to a position that does not affect the operation of the working door hoist (10) on the working stopcock door (1-2); Step 3): Use the door drainage system (12) to drain part of the water between the working door (1) and the inspection door (2), so that the working door (1-1) can be opened and closed under water-free conditions; Step 4): Operate the working door opening and closing machine (10) to lift the working door (1-1) onto the working door support pier (6); after it is in place, disengage the hydraulic grab beam of the working door opening and closing machine (10) from the working door (1-1); Step 5): Run the working door hoist (10) to the appropriate working stop beam door pier (7), located on the top of the correctly numbered working stop beam door (1-2); lift a section of the working stop beam door (1-2) by the working door hoist (10) and drop it into the working door slot (3); after it is in place, disengage the hydraulic grab beam of the working door hoist (10) from the working stop beam door (1-2); Step 6): Run the working door hoist (10) to the working door support (6), which is located on the top of the working door (1-1); lift the working door (1-1) by the working door hoist (10) and drop it into the working door slot (3); after it is in place, disengage the hydraulic gripping beam of the working door hoist (10) from the working door (1-1), and lift the hydraulic gripping beam of the working door hoist (10) to the designed height without affecting the navigation clearance height of the waterway; Step 7): Operate the inspection door hoist (11) and make it lift the inspection door (2-1) at a low speed and a small stroke, so that the waterway water is filled between the working door (1) and the inspection door (2) through the gap between the inspection door (2-1) and the inspection stopcock door (2-2); when the water level between the working door (1) and the inspection door (2) is flush with the water level of the waterway, lift the inspection door (2-1) onto the inspection door support pier (8); after it is in place, disengage the hydraulic grab beam of the inspection door hoist (11) from the inspection door (2-1); Step 8): Run the inspection door hoist (11) to the inspection stop beam door support pier (9) and locate it on the top of the inspection stop beam door (2-2) with the correct number; lift a section of the inspection stop beam door (2-2) by the inspection door hoist (11) and drop it into the inspection door slot (4); after it is in place, disengage the hydraulic grab beam of the inspection door hoist (11) from the inspection stop beam door (2-2); Step 9): Run the inspection door hoist (11) to the top of the inspection door (2-1), connect and tighten the hydraulic grab beam of the inspection door hoist (11) to the inspection door (2-1), and complete the increase of the water retaining height.

5. A method for retaining water at the ship lift gate when the water level of a ship lift channel fluctuates significantly according to any one of claims 1 to 3, comprising the following steps: Step 1): When the water level gauge of the ship lift channel detects that the water level has dropped below the designed minimum threshold depth of the working gate (1), it is determined that the gate head should be blocked by reducing one section of the working stoplog gate (1-2); Step 2): Operate the inspection door hoist (11) and lift the inspection door (2-1) to the inspection door slot (4) to block water; after it is in place, disengage the hydraulic grab beam of the inspection door hoist (11) from the inspection door (2-1), and operate the inspection door hoist (11) to a position that does not affect the operation of the working door hoist (10) on the working stopcock door (1-2); Step 3): Using the inter-door drainage system (12) to drain part of the water between the working door (1) and the inspection door (2), so that the working door (1-1) and the adjacent working stopgate door (1-2) in the working door slot (3) can be opened and closed under water-free conditions; Step 4): Operate the working door opening and closing machine (10) to lift the working door (1-1) onto the working door support pier (6); after it is in place, disengage the hydraulic grab beam of the working door opening and closing machine (10) from the working door (1-1); Step 5): Run the working door hoist (10) to the working door slot (3), lift a section of the working stop beam door (1-2) by the working door hoist (10) and drop it onto the corresponding numbered working stop beam door pier (7); after it is in place, disengage the hydraulic grab beam of the working door hoist (10) from the working stop beam door (1-2); Step 6): Run the working door hoist (10) to the working door support (6), which is located on the top of the working door (1-1); lift the working door (1-1) by the working door hoist (10) and drop it into the working door slot (3); after it is in place, disengage the hydraulic grab beam of the working door hoist (10) from the working door (1-1), and lift the hydraulic grab beam of the working door hoist (10) to the designed height without affecting the navigation clearance height of the waterway; Step 7): Run the inspection door hoist (11) and make it lift the inspection door (2-1) at a low speed and a small stroke, so that the waterway water is filled between the working door (1) and the inspection door (2) through the gap between the inspection door (2-1) and the inspection stopcock door (2-2); when the water level between the working door (1) and the inspection door (2) is flush with the water level of the waterway, lift the inspection door (2-1) to the inspection door support pier (8), and after it is in place, disengage the hydraulic grab beam of the inspection door hoist (11) from the inspection door (2-1); Step 8): Run the inspection door hoist (11) to the inspection door slot (4), lift a section of the inspection stop beam door (2-2) by the inspection door hoist (11) and drop it to the corresponding numbered inspection stop beam door pier (9); after it is in place, disengage the hydraulic grab beam of the inspection door hoist (11) from the inspection stop beam door (2-2); Step 9): Run the inspection door hoist (11) to the top of the inspection door (2-1), connect and tighten the hydraulic grab beam of the inspection door hoist (11) to the inspection door (2-1), and complete the reduction of the water retaining height.

6. A ship lift gate water retaining method according to any one of claims 1 to 3, suitable for a ship lift water retaining device with a large fluctuation in water level during a ship lift waterway closure for maintenance, characterized in that: Step 1): Run the inspection door hoist (11) to the inspection door slot (4), lift the inspection stop beam door (2-2) by the inspection door hoist (11) and drop it onto the inspection stop beam door pier (9) with the corresponding number; after it is in place, disengage the hydraulic grab beam of the inspection door hoist (11) from the inspection stop beam door (2-2); Step 2): Repeat step 1 until only No. 1 maintenance stoplog door remains in the maintenance door slot (4); Step 3): Run the inspection door hoist (11) to the inspection door slot (4), lift the No. 1 inspection stop beam door by the inspection door hoist (11) and drop it to the water retaining door slot (5); after it is in place, disengage the hydraulic grab beam of the inspection door hoist (11) from the No. 1 inspection stop beam door; Step 4): The operating maintenance door hoist (11) is moved to the maintenance stop beam door pier (9) with the appropriate number and is located on the top of the next section of the maintenance stop beam door (2-2). The maintenance door hoist (11) is used to lift the maintenance stop beam door (2-2) of this section and drop it into the water retaining gate groove (5); after it is in place, the hydraulic grab beam of the operating maintenance door hoist (11) is disengaged from the maintenance stop beam door (2-2) of this section; Step 5): Repeat step 4 until all 8 sections of the maintenance stop beam door (2-2) are dropped into the water retaining door groove (5); after they are in place, the hydraulic grab beam of the maintenance door hoist (11) is disengaged from the last section of the maintenance stop beam door (2-2); Step 6): Operate the inspection door opening and closing machine (11) to drop the inspection door (2-1) into the water retaining door slot (5); after it is in place, keep the hydraulic grab beam of the inspection door opening and closing machine (11) connected to the inspection door (2-1) and tighten it; Step 7): Use the inter-door drainage system (12) to drain the water between the working door (1) and the inspection door (2), drain the navigation channel, and enable the working gate (1-1) and the working stopgate (1-2) in the working door channel (3) to be opened and closed under water-free conditions.

Images