A water retaining and flushing stop beam door for draining and repairing a lock chamber and a drainage method

Abstract

A gate and drainage method for draining and repairing water-blocking and flushing folded beams of a lock chamber, comprising a gate slot and a bottom plate inserted in the gate slot, a plurality of gate plates and a top plate, a sealing pad is arranged between the bottom plate, the plurality of gate plates and the top plate, a curved pipe is fixedly connected at both ends of the gate plate, the upper end of the curved pipe is respectively connected with a first water inlet hole and a first drainage hole arranged in the gate plate, between two adjacent gate plates, the first water inlet hole on one gate plate is connected with the first drainage hole on the other gate plate, and each 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 provided in the bottom plate, one end of the second 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 back water surface of the bottom plate; one end of the second water inlet hole is connected with the upper end of the curved flow channel, and the other end of the second water inlet hole is connected with the front water surface of the top plate, and a valve is arranged in the second water inlet hole. The present invention can effectively alleviate the adverse effects of high head water filling on the bottom plate of the lock chamber.

Description

Technical Field

[0001] The invention relates to a lock chamber draining, maintenance, water retaining and flushing stoplog door and a drainage method. Background Art

[0002] When the first-stage lock chamber of a multi-stage lock chamber is drained for maintenance, in addition to closing the miter gate, several sections of stopgates are required in the upstream room of the miter gate to reliably block water. After the maintenance is completed, the lock chamber is filled with water. Due to the high water head, the anti-arc gate cannot be used for water filling. The current measure is to fill water between the stopgates: that is, the top stopgate is lifted by a crane for a certain distance to form a gap for water filling. In this way, the filling speed and flow are difficult to control, and high water head filling is easy to cause damage to the lock chamber bottom plate, and the crane equipment and the driver are dangerous. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a lock chamber drainage inspection and maintenance water retaining and flushing stacked beam door and a drainage method, which can effectively alleviate the adverse effects of high head water filling on the lock chamber bottom plate.

[0004] In order to solve the above problems, the technical solution to be solved by the present invention is:

[0005] A water-blocking and flushing stacked beam gate for draining and repairing a lock chamber comprises a gate groove and a bottom plate, a plurality of gate plates and a top plate inserted in the gate groove, a sealing gasket is arranged between the bottom plate, the plurality of gate plates and the top plate, a curved pipe is fixedly connected to both ends of the gate plate, the upper end of the curved pipe is respectively connected to a first water inlet hole and a first drainage hole arranged in the gate plate, between two adjacent gate plates, the first water inlet hole on one gate plate is connected to the first drainage hole on the other gate plate, and the first water inlet holes, the first drainage holes and the curved pipe are connected to form a curved flow channel; a second drainage hole is opened in the bottom plate, one end of the second drainage hole is connected to the lower end of the curved flow channel, and the other end of the second drainage hole is connected to the back water 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 to the upper end of the curved flow channel, and the other end of the second water inlet hole is connected to the front water surface of the top plate, and a valve is arranged in the second water inlet hole.

[0006] The valve comprises a cylinder mounted 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 with the cylinder.

[0007] A plurality of limit tubes are installed on the water-facing surface of the gate plate, each of which is provided with a rubber air bag, which is connected to the buoy through a hose.

[0008] A stop valve and a pressure gauge are installed on the hose.

[0009] A method for draining a lock chamber by using a lock chamber drain maintenance water retaining and flushing stacked beam door. After the valve is opened, the water in the front lock chamber is discharged into the rear lock chamber through a second water inlet hole, a curved flow channel and a second drainage hole. When the water level in the rear lock chamber rises to a level greater than 1 / 2 of the bottom plate height, air is inflated into each rubber airbag, and each gate plate is dragged upward by the rubber airbag. The water in the front lock chamber flows into the rear lock chamber through the gap between the gate plates or the gap between the gate plate and the bottom plate.

[0010] The beneficial effects of the present invention are as follows: the high-head water filling of the rear-stage lock chamber is changed to low-head water filling, and the curved flow channel is used to slow down the water flow speed, which greatly reduces the impact of the high-head water flow on the bottom plate of the rear-stage lock chamber. In addition, after a certain depth of water is filled into the lock chamber of the rear-stage lock chamber, the gate plate is lifted by the air bag to allow the water flow to fill into the rear-stage lock chamber from the bottom. On the one hand, the speed of the rear-stage lock chamber is increased, and on the other hand, the water in the rear-stage lock chamber buffers the water inlet of the filling flow. At the same time, the original vertical impact on the bottom of the rear-stage lock chamber is changed to horizontal entry into the lock chamber, thereby further weakening the impact force of the water flow on the bottom plate of the lock chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below in conjunction with the accompanying drawings:

[0012] Figure 1 is the front view of the present invention,

[0013] Figure 2 is a rear view of the present invention,

[0014] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle.

[0015] In the figure: door groove 1, top plate 2, gate plate 3, curved pipe 4, bottom plate 5, buoy 6, limit tube 7, rubber airbag 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 drainage hole 17, second drainage hole 18, rear-stage lock chamber 19, front-stage lock chamber 20. DETAILED DESCRIPTION

[0016] A water-blocking and flushing stop beam gate for draining and repairing a lock chamber comprises a gate groove 1 and a bottom plate 5 inserted in the gate groove 1, a plurality of gate plates 3 and a top plate 2, a sealing gasket is arranged between the bottom plate 5, the plurality of gate plates 3 and the top plate 2, a U-shaped curved pipe 4 is fixedly connected at both ends of the gate plate 3, the upper end of the curved pipe 4 is respectively connected to a first water inlet hole 16 and a first drainage hole 17 arranged in the gate plate 3, between two adjacent gate plates 3, the first water inlet hole 16 on one gate plate 3 is connected to the first drainage hole 17 on the other gate plate 3 The first water inlet holes 16, the first drainage holes 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 to the lower end of the curved flow channel, and the other end of the second drainage hole 18 is connected to the back water surface of the bottom plate 5; a second water inlet hole 15 is provided in the top plate 2, one end of the second water inlet hole 15 is connected to the upper end of the curved flow channel, and the other end of the second water inlet hole 15 is connected to the front water surface of the top plate 2, and a valve is provided in the second water inlet hole 15.

[0017] When it is necessary to discharge the water in the front-stage lock chamber into the rear-stage lock chamber, the valve can be opened, and the water in the front-stage lock chamber passes through the second water inlet hole 15 and the curved flow channel, and then is discharged into the rear-stage lock chamber through the second drain hole 18, thereby changing the high-head water filling of the rear-stage lock chamber to low-head water filling, and utilizing the curved flow channel to slow down the water flow speed, thereby greatly weakening the impact of the high-head water flow on the lock chamber bottom plate 5 of the rear-stage lock chamber.

[0018] When the gate plate 3 needs to be lifted, the lifting rope can be connected to the two curved pipes 4 to lift the gate plate 3.

[0019] The valve comprises a cylinder 12 mounted 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 . A plunger 14 is arranged in the valve hole 13 , and the plunger 14 is connected to the cylinder 12 .

[0020] The cylinder 12 drives the plunger 14 to move the valve hole 13, so that the second water inlet hole 15 can be opened and closed quickly and conveniently.

[0021] A plurality of limiting tubes 7 are installed on the water-facing surface of the gate plate 3, and a rubber airbag 8 is arranged in each limiting tube 7. The rubber airbag 8 is connected to the buoy 6 through a quick connector and a hose 11. After the hose 11 is connected to the air source, compressed air enters the rubber airbag 8, and the inflated rubber airbag 8 generates buoyancy to lift the gate plate 3 and the top plate 2, so that a gap is formed between the gate plate 3 and the bottom plate 5 or between the gate plates 3 and the gate plates 3, and the water in the front-stage lock chamber 20 quickly enters the rear-stage lock chamber 19 through the gap, realizing the rapid filling of the rear-stage lock chamber, and at the same time, the water flow changes from vertically impacting the bottom of the rear-stage lock chamber to horizontally entering the rear-stage lock chamber 19, weakening the impact of the water flow on the bottom plate 5 of the rear-stage lock chamber.

[0022] A stop valve 9 and a pressure gauge 10 are installed on the hose 11. Figure 2As shown, during the process of inflating each rubber airbag 8, the inflation amount of the rubber airbag 8 can be determined by observing the pressure gauge 10 to adjust the buoyancy of the rubber airbag 8 and adjust the gap between the gate plate 3 and the bottom plate 5.

[0023] A method for draining a lock chamber by using a lock chamber drain maintenance water retaining and flushing stacked beam door. After the valve is opened, the water in the front lock chamber is discharged into the rear lock chamber through the second water inlet hole 15, the curved flow channel and the second drainage hole 18. When the water level in the rear lock chamber rises to a level greater than 1 / 2 of the height of the bottom plate 5, air is inflated into each rubber airbag 8, and the rubber airbag 8 drags each level of gate plates 3 upward. The water in the front lock chamber flows into the water surface in the rear lock chamber 19 through the gap between the gate plates 3 and the gate plates 3 or the gap between the gate plates 3 and the bottom plate 5, thereby preventing the incoming water flow from directly impacting the bottom of the rear lock chamber.

Claims

1. A method for draining a lock chamber, comprising a water retaining and flushing stoplog gate, the water retaining and flushing stoplog gate comprising a gate slot (1) and a bottom plate (5) inserted into the gate slot (1), a plurality of gate plates (3) and a top plate (2), a sealing gasket being arranged between the bottom plate (5), the plurality of gate plates (3) and the top plate (2), characterized in that: A curved pipe (4) is fixedly connected to both ends of the gate plate (3), and the upper end of the curved pipe (4) is respectively connected to a first water inlet hole (16) and a first drainage hole (17) provided in the gate plate (3). Between two adjacent gate plates (3), the first water inlet hole (16) on one gate plate (3) is connected to the first drainage hole (17) on the other gate plate (3), and the first water inlet holes (16), the first drainage holes (17) and the curved pipe (4) are connected to form a curved flow channel; a second drainage hole (18) is provided in the bottom plate (5), one end of the second drainage hole (18) is connected to the lower end of the curved flow channel, and the other end of the second drainage hole (18) is connected to the back water surface of the bottom plate (5); a second water inlet hole (15) is provided in the top plate (2), and the second water inlet hole (15) is connected to the bottom water surface of the bottom plate (5). One end of the hole (15) is connected to the upper end of the curved flow channel, and the other end of the second water inlet hole (15) is connected to the water-facing surface of the top plate (2). A valve is provided in the second water inlet hole (15); a plurality of limit tubes (7) are installed on the water-facing surface of the gate plate (3), and a rubber air bag (8) is provided in each limit tube (7). The rubber air bag (8) is connected to the buoy (6) through a hose (11); the valve comprises a cylinder (12) installed on the top plate (2) and a valve hole (13) opened in the top plate (2), the valve hole (13) intersecting with the second water inlet hole (15), a plunger (14) being provided in the valve hole (13), and the plunger (14) being connected to the cylinder (12); a stop valve (9) and a pressure gauge (10) are installed on the hose (11); The method comprises the following steps: after the valve is opened, water in the front-stage lock chamber is discharged into the rear-stage lock chamber through the second water inlet hole (15), the curved flow channel and the second drainage hole (18); when the water level in the rear-stage lock chamber rises to a level greater than 1 / 2 of the height of the bottom plate (5), air is inflated into each rubber airbag (8), and the rubber airbag (8) drags each stage of the gate plates (3) upward, and the water in the front-stage lock chamber flows into the rear-stage lock chamber through the gap between the gate plates (3) and the gate plates (3) or the gap between the gate plates (3) and the bottom plate (5).

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