WO2022017542A1

WO2022017542A1 - Water retaining and flushing stoplog gate for lock chamber water-drained overhauling, and drainage method

Info

Publication number: WO2022017542A1
Application number: PCT/CN2021/114644
Authority: WO
Inventors: 张丽; 潘中奇; 杨丽颖; 周蝾; 黎小红; 郝相如; 金泽康
Original assignee: 中国长江三峡集团有限公司; 北京市凉水河管理处
Priority date: 2020-11-30
Filing date: 2021-08-26
Publication date: 2022-01-27
Also published as: GB2606641B; JP2023502649A; GB2606641A; JP7346735B2; GB202207572D0; DE112021000157T5

Abstract

A water retaining and flushing stoplog gate for lock chamber water-drained overhauling, and a drainage method. The stoplog gate comprises gate slots, and a bottom plate, a plurality of flashboards and a top plate, which are inserted into the gate slots, wherein sealing gaskets are arranged between the bottom plate, the plurality of flashboards and the top plate. Curved pipes are fixedly connected to two ends of each flashboard, wherein upper ends of the curved pipes are respectively in communication with first water intake holes and first drainage holes that are provided in the flashboards; for every two adjacent flashboards, the first water intake hole in one flashboard is in communication with the first drainage hole in the other flashboard; and the first water intake holes, the first drainage holes and the curved pipes are connected to form a winding flow channel. A second drainage hole is provided in the bottom plate, wherein one end of the second drainage hole is in communication with the lower end of the winding flow channel, and the other end of the second drainage hole is in communication with a downstream face of the bottom plate. One end of a second water intake hole is in communication with the upper end of the winding flow channel, and the other end of the second water intake hole is in communication with an upstream face of the top plate. A valve is arranged in the second water intake hole. The present invention can effectively alleviate the adverse effects of high-head water filling on a bottom plate of a lock chamber.

Description

A kind of lock chamber room draining, repairing, water blocking, flushing, stacked beam door and drainage method

technical field

The invention relates to a sluice chamber draining, overhauling, blocking, flushing, and stacking beam doors and a drainage method.

Background technique

In addition to closing the herringbone gate, several sections of stacked beam doors in the upstream room of the herringbone gate are required to reliably block water for the first-stage lock chamber of the multi-stage lock chamber. After the maintenance is completed, the lock chamber should be filled with water. Due to the high water head, the reverse arc gate cannot be used to fill the water. The current measure is to fill the beam door with water between sections: that is, lift the uppermost section of the beam door with a crane for a certain distance to form a gap to fill with water, so that the water filling speed and flow are not easy to control, and high water head filling will easily damage the bottom of the lock chamber. Causes damage to the crane equipment and the driver is dangerous.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a sluice chamber draining, repairing, water-retaining, flushing beam door and a drainage method, which can effectively alleviate the adverse effects of high water head filling on the sluice chamber floor.

In order to solve the above-mentioned problems, the technical scheme to be solved by the present invention is:

The utility model relates to a water-retaining and flushing stacked beam door for draining and repairing a lock chamber. Curved pipes are fixedly connected at both ends of the gate, and the upper ends of the curved pipes are respectively connected to the first water inlet hole and the first drainage hole arranged in the gate. Between two adjacent gates, one of the gates is the first A water inlet hole is communicated with the first drainage hole on the other gate plate, and the first water inlet hole, the first drainage hole and the curved pipe are connected to form a curved flow channel; a second drainage hole is opened in the bottom plate, the second One end of the drainage hole is connected with the lower end of the curved flow channel, and the other end of the second drainage hole is connected with the backwater surface of the bottom plate; a second water inlet hole is arranged in the top plate, one end of the second water inlet hole is connected with the upper end of the curved flow channel, and the second water inlet The other end of the hole is connected with the water-facing surface of the top plate, and a valve is arranged in the second water inlet hole.

The valve includes a cylinder installed on the top plate and a valve hole opened in the top plate, the valve hole intersects with the second water inlet hole, a plunger is arranged in the valve hole, and the plunger is connected to the cylinder.

A plurality of limit tubes are installed on the water-facing surface of the ram, and rubber airbags are arranged in each limiter tube, and the rubber airbags are connected with the buoy through a hose.

A shut-off valve and a pressure gauge are installed on the hose.

A method for draining the lock chamber chamber by using the lock chamber chamber to drain and repair the water blocking and flushing stack beam door. After the valve is opened, the water in the front-stage lock chamber passes through the second water inlet hole, the curved flow channel and the second drainage hole. It is discharged into the rear-stage sluice chamber. When the water level of the rear-stage sluice chamber rises to more than 1/2 of the height of the bottom plate, it will inflate into each rubber air bag, and the rubber air bag will drag the sluice plates at all levels upward. The gap between the plate and the gate or the gap between the gate and the bottom plate flows into the rear stage chamber.

The beneficial effects of the invention are as follows: the high head water filling of the rear stage lock chamber is changed to low water filling, and the curved flow channel is used to slow down the water flow speed, so as to greatly reduce the impact of the high head water flow on the floor of the rear stage lock chamber. In addition, after the back-stage lock chamber is filled with a certain depth of water, the airbag will hold up the gate, so that the water flow is filled into the back-stage lock chamber from the bottom. The water in the back-stage lock chamber buffers the influent water flow, and at the same time, the original vertical impact on the bottom of the back-stage lock chamber is changed to enter the lock chamber horizontally, thereby further weakening the impact force of the water flow on the floor of the lock chamber.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings:

Fig. 1 is the front view of the present invention,

Fig. 2 is the rear view of the present invention,

FIG. 3 is a schematic cross-sectional structure diagram at A-A in FIG. 1 .

In the figure: door slot 1, top plate 2, gate 3, curved pipe 4, bottom plate 5, buoy 6, limit pipe 7, rubber air bag 8, stop valve 9, and pressure gauge 10, hose 11, cylinder 12, valve Hole 13 , plunger 14 , second water inlet hole 15 , first water inlet hole 16 , first drain hole 17 , second drain hole 18 , rear stage lock chamber 19 , front stage lock chamber 20 .

detailed description

A water-retaining and flushing stacked beam door for draining and repairing a lock chamber, comprising a door slot 1, a bottom plate 5 inserted in the door slot 1, a plurality of shutter plates 3 and a top plate 2, a bottom plate 5, a plurality of shutter plates 3 and a top plate A gasket is provided between the two ends of the gate 3, and a U-shaped curved pipe 4 is fixedly connected at both ends of the gate 3. The upper end of the curved pipe 4 is connected to the first water inlet hole 16 and the first drainage hole 17 arranged in the gate 3 respectively. , between two adjacent gates 3, the first water inlet hole 16 on one of the gates 3 is communicated with the first drain hole 17 on the other gate 3, and the first water inlet hole 16, the first drain hole The hole 17 and the curved pipe 4 are connected to form a curved flow channel; a second drainage hole 18 is opened in the bottom plate 5, one end of the second drainage hole 18 is connected with the lower end of the curved flow channel, and the other end of the second drainage hole 18 is connected with the back surface of the bottom plate 5. There is a second water inlet 15 in the top plate 2, one end of the second water inlet 15 is communicated with the upper end of the curved flow channel, and the other end of the second water inlet 15 is connected with the upstream surface of the top plate 2. 15 is provided with a valve.

When the water in the pre-stage lock chamber needs to be drained into the back-stage lock chamber, the valve can be opened, and the water in the pre-stage lock chamber passes through the second water inlet hole 15 and the curved flow channel, and is discharged from the second drainage hole 18. Enter into the back-stage sluice chamber, thus the high-head water filling of the latter-stage sluice chamber is changed to low-level water filling, and the curved flow channel is used to slow down the water flow speed, which greatly weakens the high-head water flow to the latter-stage sluice chamber. Impact of the bottom plate 5.

When the gate 3 needs to be lifted, the lifting rope can be connected to the two curved pipes 4 to lift the gate 3 .

The valve includes a cylinder 12 installed on the top plate 2 and a valve hole 13 opened in the top plate 2. The valve hole 13 intersects with the second water inlet hole 15, and a plunger 14 is arranged in the valve hole 13, and the plunger 14 is connected to the valve hole 13. Cylinder 12 is turned on.

The cylinder 12 drives the plunger 14 to open and close the second water inlet hole 15 quickly and conveniently during the movement of the valve hole 13 .

A plurality of limit tubes 7 are installed on the water-facing surface of the gate 3 , and rubber airbags 8 are arranged in each limiter tube 7 , and the rubber airbags 8 are connected to the buoy 6 through quick joints and hoses 11 . After the hose 11 is connected to the air source, the compressed air enters the rubber air bag 8, and the inflated rubber air bag 8 generates buoyancy to hold up the shutter 3 and the top plate 2, so that the gap between the shutter 3 and the bottom plate 5 or the shutter 3 A gap is formed between it and the gate 3, and the water in the front-stage lock chamber 20 quickly enters the rear-stage lock chamber 19 through the gap, so as to realize the rapid water filling of the latter-stage lock chamber, and at the same time, the water flow vertically impacts the bottom of the rear-stage lock chamber and changes to a horizontal level. Enter the rear-stage lock chamber 19 to weaken the impact of the water flow on the rear-stage lock chamber bottom plate 5 .

A stop valve 9 and a pressure gauge 10 are attached to the hose 11 . As shown in FIG. 2 , in the process of inflating each rubber air bag 8 , the inflation amount of the rubber air bag 8 can be determined by observing the pressure gauge 10 to adjust the buoyancy of the rubber air bag 8 and adjust the gap between the gate 3 and the bottom plate 5 .

A method for draining the lock chamber by using the lock chamber chamber to drain and repair the water blocking and flushing stack beam door. After the valve is opened, the water in the front-stage lock chamber passes through the second water inlet hole 15, the curved flow channel and the second drainage hole After 18, it is discharged into the rear-stage lock chamber. When the water level of the rear-stage lock chamber rises to more than 1/2 of the height of the bottom plate 5, it will inflate each rubber air bag 8, and the rubber air bag 8 will drag the ram 3 at all levels upward, and the front The water in the stage lock chamber flows into the water surface in the rear stage lock chamber 19 through the gap between the gate 3 and the gate 3 or the gap between the gate 3 and the bottom plate 5, so as to prevent the entering water flow from directly impacting the bottom of the rear stage lock chamber.

Claims

A water-retaining and flushing stacked beam door for draining and repairing a lock chamber, comprising a door slot (1), a bottom plate (5) inserted in the door slot (1), a plurality of gate plates (3) and a top plate (2), A gasket is arranged between the bottom plate (5), the plurality of gate plates (3) and the top plate (2), and is characterized in that a curved pipe (4) is fixedly connected at both ends of the gate plate (3), and the curved pipe (4) The upper end is respectively connected to the first water inlet hole (16) and the first drainage hole (17) arranged in the gate (3), and between the two adjacent gates (3), one of the gates (3) The upper first water inlet hole (16) is communicated with the first drainage hole (17) on the other gate (3), and is composed of the first water inlet hole (16), the first drainage hole (17) and the curved pipe (17). 4) Connected into a curved flow channel; a second drainage hole (18) is opened in the bottom plate (5), one end of the second drainage hole (18) is connected with the lower end of the curved flow channel, and the other end of the second drainage hole (18) is connected with the bottom plate (5) The backwater surface is connected; a second water inlet hole (15) is provided in the top plate (2), one end of the second water inlet hole (15) is connected with the upper end of the curved flow channel, and the other end of the second water inlet hole (15) It is connected with the upstream surface of the top plate (2), and a valve is arranged in the second water inlet hole (15).
A lock chamber chamber draining and repairing water retaining and flushing stacked beam door according to claim 1, characterized in that: the valve comprises a cylinder (12) installed on the top plate (2) and a cylinder (12) arranged on the top plate (2) The inner valve hole (13), the valve hole (13) intersects with the second water inlet hole (15), a plunger (14) is arranged in the valve hole (13), and the plunger (14) is connected with the cylinder (12) Pass.
The gate chamber for draining and overhauling water retaining and flushing stacked beam doors according to claim 1 or 2, characterized in that: a plurality of limit pipes (7) are installed on the water-facing surface of the gate (3), Each limiting tube (7) is provided with a rubber airbag (8), and the rubber airbag (8) is connected with the buoy (6) through a hose (11).
A lock chamber chamber draining and repairing water blocking and flushing beam gate according to claim 3, characterized in that: a stop valve (9) and a pressure gauge (10) are installed on the hose (11).
A method for draining the sluice chamber by using the sluice chamber chamber draining, overhauling, water-retaining and flushing stacked beam doors according to claim 4, characterized in that: after the valve is opened, the water in the front-stage sluice chamber passes through the second water inlet hole ( 15), the curved flow channel and the second drainage hole (18) are then discharged into the rear-stage lock chamber, and when the water level of the latter-stage lock chamber rises to more than 1/2 of the height of the bottom plate (5), it will flow to each rubber air bag (8). Inflated inside, the rubber airbags (8) drag the gates (3) at all levels upward, and the water in the front-stage gates is moved by the gap between the gates (3) and the gates (3) or the gates (3) and the bottom plate ( 5) The gap between them flows into the rear stage lock chamber.