A pneumatic shield gate system for a hydropower station and its construction method

Abstract

The present invention discloses a pneumatic shield gate system for a hydropower station and its construction method, which includes a dam body, a control box is provided on the dam body, and a battery pack is provided in the control box; and a steel shield, the steel shield is arranged between two dam bodies; the steel shield includes a rotating steel shield and a moving steel shield, the rotating steel shield is rotatably connected between two dam bodies, the moving steel shield is movably connected to the rotating steel plate for adjusting the overall area of the steel shield; and an airbag mechanism, the airbag mechanism supports the rotating steel shield and the moving steel shield. The present invention can not only realize the adjustment of the area of the steel shield to meet the gate adjustment requirements of different water level heights, but also improve the support strength and stability of the steel shield.

Description

Technical Field

[0001] The present invention relates to a pneumatic shield gate system for a hydropower station and a construction method thereof. Background Art

[0002] A gate is a water retaining structure used for water storage and discharge of a dam. Currently, various types of gates are in use, such as flap gates, rubber dams, shaft gates, and arc gates.

[0003] Patent No. 202221523309.5 discloses a pneumatic shield gate. A limit base is arranged on the dam body; a rotating shaft is rotatably connected to the limit base; one end of a shield plate is connected to the rotating shaft, and along the direction away from the rotating shaft, the thickness of the shield plate gradually decreases; a limit baffle is arranged on the shield plate. When the shield plate rises to the designed opening degree, the limit baffle abuts against and "locks" with the limit base to prevent the risk of reverse rotation of the shield plate, and at the same time reduces the construction risk and difficulty when using a traditional limit belt for limiting; at the same time, the shield plate is connected to the limit base through the rotating shaft, enabling the shield plate to rotate flexibly and eliminating the need for a large number of bolts to connect hinge covers like traditional shield plates, thus enabling the rapid installation of the shield plate. However, this patent can only achieve angle adjustment and cannot adjust the area of the entire shield plate, with relatively limited practicality. At the same time, a single fixed airbag is adopted. Once the airbag has a problem, it cannot effectively support the shield plate, presenting a relatively large potential safety hazard. Summary of the Invention

[0004] The purpose of the present invention is to provide a technical solution for a pneumatic shield gate system for a hydropower station and a construction method thereof, which can not only adjust the area of the steel shield to meet the gate adjustment requirements at different water levels, but also improve the support strength and stability of the steel shield.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A pneumatic shield gate system for a hydropower station includes

[0007] a dam body, on which a control box is provided, and a battery pack is arranged inside the control box;

[0008] and a steel shield, which is arranged between two dam bodies;

[0009] It is characterized in that:

[0010] The steel shield includes a rotating steel shield and a moving steel shield. The rotating steel shield is rotatably connected between two dam bodies, and the moving steel shield is movably connected to the rotating steel shield for adjusting the overall area of the steel shield;

[0011] and an airbag mechanism for supporting the rotating steel shield and the moving steel shield.

[0012] Through the design of the above structure, not only can the area of the steel shield be adjusted to meet the adjustment requirements of the gate at different water levels, but also the support strength and stability of the steel shield can be improved.

[0013] Furthermore, the movable steel shield is movably connected to the groove of the rotatable steel shield through a hydraulic mechanism and a limiting mechanism. The hydraulic mechanism can drive the movable steel shield to move along the rotatable steel shield to adjust the area of the steel shield, and the limiting mechanism improves the stability and reliability of the movable steel shield during movement.

[0014] Furthermore, the hydraulic mechanism includes a hydraulic cylinder, an oil delivery pipe, a first solenoid valve, and a hydraulic oil tank. The hydraulic cylinder is arranged inside the rotatable steel shield. The hydraulic cylinder is connected to the movable steel shield through a piston rod. An oil delivery pipe is arranged on the rotatable steel shield. The oil delivery pipe connects the hydraulic cylinder and the hydraulic oil tank. A first solenoid valve is arranged on the oil delivery pipe. The hydraulic oil tank is arranged on the dam body. An oil pump is arranged inside the hydraulic oil tank. The flow of hydraulic oil between the hydraulic oil tank and the hydraulic cylinder is controlled by the oil pump to realize the movement of the piston rod driving the movable steel shield. The first solenoid valve is used to control the opening and closing of the oil delivery pipe to meet the requirements of actual adjustment.

[0015] Furthermore, the limiting mechanism includes a T-shaped guide bar and a T-shaped groove. The T-shaped guide bar is arranged on the movable steel shield, and the T-shaped groove is arranged on the rotatable steel shield. The T-shaped guide bar matches the T-shaped groove. By moving the T-shaped guide bar along the T-shaped groove, the stability and reliability of the movable steel shield during movement are greatly improved, and it is prevented from being offset and jammed.

[0016] Furthermore, the airbag mechanism includes a first airbag, a second airbag, and a third airbag. The first airbag is distributed closely on one side of the rotatable steel shield. The second airbag is arranged on the other side of the first airbag. The third airbag is arranged on the top of the first airbag and the second airbag. The third airbag supports the movable steel shield. The first airbag is connected to the second airbag through a second air delivery pipe. The second airbag is connected to the third airbag through a third air delivery pipe. A third solenoid valve and a fourth solenoid valve are respectively arranged on the second air delivery pipe and the third air delivery pipe. The second airbag communicates with an air pump box. The air pump box is arranged on the side of the dam body. By controlling the gas input into the first airbag, the second airbag, and the third airbag through the air pump box, the support for the steel shield is realized, and the stability and reliability of the entire pneumatic shield gate system are improved. The third solenoid valve can control the opening and closing of the second air delivery pipe to facilitate the input of the gas in the first airbag into the second airbag. The fourth solenoid valve can control the opening and closing of the third air delivery pipe to facilitate the input of the gas in the second airbag into the third airbag.

[0017] Furthermore, an arc-shaped groove is provided on one side of the dam body close to the movable steel shield. Card slots are symmetrically provided on both sides of the movable steel shield. Side airbags are provided in the card slots. A first air pipe is provided on the movable steel shield. The first air pipe communicates with the air pump box and the side airbags. A second electromagnetic valve is provided on the first air pipe. The side airbags are supplied with air through the air pump box via the first air pipe. After the side airbags are inflated, they are limited in the arc-shaped groove, realizing the sealing between the movable steel shield and the dam body. The switch of the first air pipe can be controlled through the second electromagnetic valve, facilitating the input of gas into the side airbags and adjusting the sealing degree between the movable steel shield and the dam body.

[0018] Furthermore, a solar photovoltaic mechanism is provided between the tops of the two dam bodies. The solar photovoltaic mechanism is connected to the dam body through a jacking mechanism. The solar photovoltaic mechanism converts light energy into electrical energy and stores it in the battery pack of the control box, providing electrical energy for the entire pneumatic shield gate system. The jacking mechanism can adjust the height position of the solar photovoltaic mechanism.

[0019] Furthermore, the solar photovoltaic mechanism includes solar panels, crossbeams, first connecting columns, second connecting columns, and columns. The columns are respectively fixed on the dam body. The crossbeams are movably connected to the columns through lifting blocks. The second connecting columns are fixed on the tops of the crossbeams. The solar panels are connected to the second connecting columns through the first connecting columns. The columns improve the installation stability of the lifting blocks and further improve the installation stability of the crossbeams. The first connecting columns and the second connecting columns improve the installation stability of the solar panels.

[0020] Furthermore, the jacking mechanism includes a motor, a screw rod, a guide rail, a jacking block, and a push rod. The motor and the guide rail are provided on the dam body. The motor is connected to a stop block through the screw rod. The jacking block is slidably connected to the guide rail. The jacking block is connected to the screw rod through a boosting block. First support blocks and second support blocks are respectively provided on the jacking block and the lifting block. The two ends of the push rod are rotatably connected to the first support block and the second support block. By driving the screw rod to rotate through the motor, the jacking block can be driven to move up and down along the guide rail through the boosting block, and further the lifting block can be driven to move up and down through the push rod, adjusting the height position of the solar panels to avoid the contact between the water flow and the solar panels.

[0021] A construction method of a pneumatic shield gate system for a hydropower station as described above is characterized by including the following steps:

[0022] 1) Dam body construction

[0023] a. First, determine the construction position of the pneumatic shield gate system at the location of the hydropower station and clean the construction position;

[0024] b. Then, determine the construction positions of the dam bodies along both sides of the hydropower station, form the required dam bodies through concrete pouring, and open arc-shaped grooves on the two dam bodies. At the same time, open installation holes at the bottom of one side of the dam body along the arc-shaped groove, so that the installation holes on the two dam bodies are on the same horizontal straight line;

[0025] 2) Construction of the airbag mechanism

[0026] a. First, determine the installation position of the airbag mechanism according to the rotation angle requirement of the steel shield, and select the first airbag, the second airbag, and the third airbag with appropriate sizes;

[0027] b. Horizontally arrange the first airbag along the bottom position where the steel shield is installed between the two dams, and make adjacent first airbags communicate with each other. Then, horizontally arrange the second airbag along one side of the first airbag between the two dams. The second airbag is far from the steel shield. At the same time, install a second air pipe between the first airbag and the second airbag, and install a third solenoid valve on the second air pipe;

[0028] c. Next, install the third airbag between the tops of the first airbag and the second airbag, so that the third airbag is horizontally arranged between the two dams. Install a third air pipe between the second airbag and the third airbag, and install a fourth solenoid valve on the third air pipe;

[0029] d. Finally, manufacture a suitable air pump box according to the design requirements, install an air pump in the air pump box, and connect the air pump to the first airbag through an air pipe;

[0030] 3) Construction of the rotating steel shield

[0031] a. First, determine the size of the rotating steel shield according to the horizontal distance between the two dams, and manufacture the corresponding rotating steel shield. A groove is formed inside the rotating steel shield, a T-shaped groove is opened along the opening side of the groove, and a hydraulic cylinder with a piston rod is installed along the inner bottom side of the groove;

[0032] b. Then, install rotating shafts along the bottom sides of both sides of the rotating steel shield, so that the size of the rotating shafts matches the installation holes;

[0033] c. Next, install an oil pipe on the water-facing side of the rotating steel shield, so that the oil pipe communicates with the hydraulic cylinder. The other end of the oil pipe is connected to a hydraulic oil tank. The hydraulic oil tank is installed on one side of the dam. An oil pump is provided in the hydraulic oil tank, and a first solenoid valve is installed on the oil pipe;

[0034] d. Finally, insert the rotating shaft of the rotating steel shield into the installation hole of the dam, so that the rotating steel shield is rotatably connected between the two dams;

[0035] 4) Construction of the movable steel shield

[0036] a. First, determine the size of the movable steel shield according to the size of the groove, and process the corresponding movable steel shield. The size of the movable steel shield matches the groove;

[0037] b. Then, install T-shaped guide bars along the upper surface of the movable steel shield, so that the T-shaped guide bars match the T-shaped grooves;

[0038] c. Next, symmetrically open card slots on both sides of the movable steel shield, install side airbags in the card slots, install a first air pipe on the end face of the movable steel shield, connect the first air pipe to the side airbags, install a second solenoid valve on the first air pipe, and connect the first air pipe to an air pump;

[0039] d. Finally, install the processed movable steel shield in the groove of the rotating steel shield, connect the piston rod to the bottom end face of the movable steel shield, and limit the T-shaped guide bar in the T-shaped groove;

[0040] 5) Construction of the solar photovoltaic mechanism

[0041] a. First, process corresponding cross beams and solar panels according to the dimensions between the two dams, install columns on the top surface of the dam, connect the cross beams to the columns through lifting blocks, then symmetrically install second connecting columns on the top surface of the cross beams, and connect the solar panels to the second connecting columns through the first connecting columns. Install second support blocks on the side surfaces of the lifting blocks;

[0042] b. Then install a motor, a stop block, and a guide rail on the dam. Connect the motor to the stop block through a screw rod. The guide rail is located on one side of the screw rod. Then install a pushing block on the guide rail. Connect the pushing block to the screw rod through a boosting block. Install a first support block on the pushing block. Connect the first support block to the second support block through a push rod;

[0043] c. Next, install a control box on the dam. Electrically connect the control box to the motor, the solar panel, the oil pump, and the air pump through wires;

[0044] 6) Operation of the pneumatic shield gate system

[0045] a. First, rotate the rotating steel shield to the required angular position for support. Control the air pump box to work through the control box. The air pump box inflates the second airbag, opens the second solenoid valve, and makes the gas in the second airbag enter the first airbag to realize the support and fixation of the rotating steel shield;

[0046] b. Then start the hydraulic oil tank according to the length of the steel shield, inject hydraulic oil into the hydraulic cylinder, drive the movable steel shield to extend along the groove to the required length through the piston rod, and then start the third solenoid valve to make the gas in the second airbag enter the third airbag until the third airbag completely supports the movable steel shield;

[0047] c. Next, inflate the side airbags through the air pump box so that the side airbags expand and are limited in the arc-shaped groove for sealing.

[0048] The construction method has simple steps, which can not only improve the construction efficiency of the pneumatic shield gate system, but also help to improve the stability of the entire pneumatic shield gate system and meet the adjustment requirements of different water level heights.

[0049] Due to the adoption of the above technical solutions, the present invention has the following beneficial effects:

[0050] 1. It can not only adjust the area of the steel shield to meet the adjustment requirements of the gate at different water levels, but also improve the support strength and stability of the steel shield.

[0051] 2. The hydraulic mechanism can drive the movable steel shield to move along the rotating steel shield to adjust the area of the steel shield, and the limiting mechanism improves the stability and reliability of the movable steel shield during movement.

[0052] 3. The air pump box controls the gas input into the first airbag, the second airbag and the third airbag to support the steel shield, improving the stability and reliability of the entire pneumatic shield gate system. The third solenoid valve can control the opening and closing of the second air pipe to facilitate the input of the gas in the first airbag into the second airbag, and the fourth solenoid valve can control the opening and closing of the third air pipe to facilitate the input of the gas in the second airbag into the third airbag.

[0053] 4. The construction method has simple steps, which can not only improve the construction efficiency of the pneumatic shield gate system, but also help improve the stability of the entire pneumatic shield gate system and meet the adjustment requirements at different water levels. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The present invention will be further described below with reference to the drawings:

[0055] Figure 1 It is the effect diagram of the pneumatic shield gate system in a pneumatic shield gate system and its construction method for a hydropower station according to the present invention;

[0056] Figure 2 For Figure 1 the structural schematic diagram in the A direction in

[0057] Figure 3 It is the structural schematic diagram of the movable steel shield in the present invention;

[0058] Figure 4 It is the structural schematic diagram of the airbag mechanism in the present invention;

[0059] Figure 5 It is the structural schematic diagram of the rotating steel shield in the present invention;

[0060] Figure 6 It is the flow chart of the construction method in the present invention.

[0061] In the figure: 1 - dam body; 101 - arc groove; 102 - hydraulic oil tank; 103 - air pump box; 104 - control box;

[0062] 2 - rotating steel shield; 201 - groove; 202 - T-shaped groove; 203 - rotating shaft; 204 - oil pipeline; 205 - first solenoid valve;

[0063] 3 - Movable steel shield; 302 - Hydraulic cylinder; 303 - Piston rod; 304 - T-shaped guide bar; 305 - First air pipe; 306 - Second solenoid valve; 307 - Card slot; 308 - Side airbag;

[0064] 4 - Solar photovoltaic mechanism; 401 - Solar panel; 402 - Cross beam; 403 - First connecting column; 404 - Second connecting column; 405 - Lifting block; 406 - Column;

[0065] 5 - Pushing mechanism; 501 - Guide rail; 502 - Pushing block; 503 - Push-pull rod; 504 - First support block; 505 - Second support block; 506 - Motor; 507 - Screw; 508 - Stop block; 509 - Boosting block;

[0066] 6 - Airbag mechanism; 601 - First airbag; 602 - Second airbag; 603 - Third airbag; 604 - Second air pipe; 605 - Third solenoid valve; 606 - Third air pipe; 607 - Fourth solenoid valve. Detailed implementation mode

[0067] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0068] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0069] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0070] As Figures 1 to 5 shown, a pneumatic shield gate system for a hydropower station according to the present invention includes a dam body 1, a steel shield and an airbag mechanism 6. A control box 104 is provided on the dam body 1. A battery pack is provided in the control box 104. A PLC controller and a communication module may be provided in the control box 104 for a remote control terminal to control the control box 104, and further control the operation of the entire pneumatic shield gate system.

[0071] The steel shield is arranged between two dam bodies 1. The steel shield includes a rotating steel shield 2 and a movable steel shield 3. The rotating steel shield 2 is rotatably connected between the two dam bodies 1, and the movable steel shield 3 is movably connected to the rotating steel shield for adjusting the overall area of the steel shield. In this application, a complete rotating steel shield 2 and a movable steel shield 3 are adopted, which is convenient for the overall connection. The movable steel shield 3 is movably connected to the groove 201 of the rotating steel shield 2 through a hydraulic mechanism and a limiting mechanism. The hydraulic mechanism can drive the movable steel shield 3 to move along the rotating steel shield 2 to adjust the area of the steel shield, and the limiting mechanism improves the stability and reliability of the movable steel shield 3 during movement.

[0072] The hydraulic mechanism includes a hydraulic cylinder 302, an oil delivery pipe 204, a first solenoid valve 205 and a hydraulic oil tank 102. The hydraulic cylinder 302 is arranged inside the rotating steel shield 2. The hydraulic cylinder 302 is connected to the movable steel shield 3 through a piston rod 303. The rotating steel shield 2 is provided with an oil delivery pipe 204. The oil delivery pipe 204 connects the hydraulic cylinder 302 and the hydraulic oil tank 102. The oil delivery pipe 204 is provided with a first solenoid valve 205. The hydraulic oil tank 102 is arranged on the dam body 1. An oil pump is arranged inside the hydraulic oil tank 102. By controlling the flow of hydraulic oil between the hydraulic oil tank 102 and the hydraulic cylinder 302 through the oil pump, the piston rod 303 drives the movable steel shield 3 to move. The first solenoid valve 205 is used to control the opening and closing of the oil delivery pipe 204 to meet the requirements of actual adjustment.

[0073] The limiting mechanism includes a T-shaped guide bar 304 and a T-shaped groove 202. The T-shaped guide bar 304 is arranged on the movable steel shield 3, and the T-shaped groove 202 is arranged on the rotating steel shield 2. The T-shaped guide bar 304 matches the T-shaped groove 202. By moving the T-shaped guide bar 304 along the T-shaped groove 202, the stability and reliability of the movable steel shield 3 during movement are greatly improved, and it is prevented from being offset and stuck.

[0074] The airbag mechanism 6 supports the rotating steel shield 2 and the moving steel shield 3. The airbag mechanism 6 includes a first airbag 601, a second airbag 602 and a third airbag 603. The first airbag 601 is distributed closely to one side of the rotating steel shield 2. The second airbag is arranged on the other side of the first airbag. The third airbag is arranged on the top of the first airbag 601 and the second airbag 602. The third airbag 603 supports the moving steel shield 3. The first airbag 601 is connected to the second airbag 602 through a second air pipe 604. The second airbag 602 is connected to the third airbag 603 through a third air pipe 606. A third solenoid valve 605 and a fourth solenoid valve 607 are respectively arranged on the second air pipe 604 and the third air pipe 606. The second airbag 602 is communicated with the air pump box 103. The air pump box 103 is arranged on the side of the dam body 1. By controlling the gas input into the first airbag 601, the second airbag 602 and the third airbag 603 through the air pump box 103, the support for the steel shield is realized, and the stability and reliability of the entire pneumatic shield gate system are improved. The third solenoid valve 605 can control the opening and closing of the second air pipe 604, facilitating the input of the gas in the first airbag 601 into the second airbag 602. The fourth solenoid valve 607 can control the opening and closing of the third air pipe 606, facilitating the input of the gas in the second airbag 602 into the third airbag 603.

[0075] Through the design of the above structure, not only can the adjustment of the area of the steel shield be realized to meet the adjustment requirements of the gate at different water level heights, but also the support strength and stability of the steel shield can be improved.

[0076] An arc-shaped groove 101 is arranged on one side of the dam body 1 close to the moving steel shield 3. Clamping grooves 307 are symmetrically arranged on both sides of the moving steel shield 3. Side airbags 308 are arranged in the clamping grooves 307. A first air pipe 305 is arranged on the moving steel shield 3. The first air pipe 305 is communicated with the air pump box 103 and the side airbags 308. A second solenoid valve 306 is arranged on the first air pipe 305. By supplying gas to the side airbags 308 through the air pump box 103 via the first air pipe 305, the side airbags 308 are expanded and limited in the arc-shaped groove 101, realizing the seal between the moving steel shield and the dam body 1. The opening and closing of the first air pipe 305 can be controlled through the second solenoid valve 306, facilitating the input of gas into the side airbags 308 and adjusting the sealing degree between the moving steel shield and the dam body 1.

[0077] A solar photovoltaic mechanism 4 is arranged between the tops of the two dam bodies 1. The solar photovoltaic mechanism 4 is connected to the dam body 1 through a top-pushing mechanism 5. The solar photovoltaic mechanism 4 converts light energy into electrical energy and stores it in the battery pack of the control box 104, providing electrical energy for the entire pneumatic shield gate system. The top-pushing mechanism 5 can adjust the height position of the solar photovoltaic mechanism 4.

[0078] The solar photovoltaic mechanism 4 includes a solar panel 401, a cross beam 402, a first connecting column 403, a second connecting column 404 and a column 406. The columns 406 are respectively fixed on the dam body 1. The cross beam 402 is movably connected to the columns 406 through lifting blocks 405. The second connecting column 404 is fixed on the top of the cross beam 402. The solar panel 401 is connected to the second connecting column 404 through the first connecting column 403. The columns 406 improve the installation stability of the lifting blocks 405 and further improve the installation stability of the cross beam 402. The first connecting column 403 and the second connecting column 404 improve the installation stability of the solar panel 401.

[0079] The jacking mechanism 5 includes a motor 506, a screw 507, a guide rail 501, a jacking block 502 and a push-pull rod 503. The motor 506 and the guide rail 501 are arranged on the dam body 1. The motor 506 is connected to a stop block 508 through the screw 507. The jacking block 502 is slidably connected to the guide rail 501. The jacking block 502 is connected to the screw 507 through a boosting block 509. First support blocks 504 and second support blocks 505 are respectively arranged on the jacking block 502 and the lifting block 405. The two ends of the push-pull rod 503 are rotatably connected to the first support block 504 and the second support block 505. By driving the screw 507 to rotate through the motor 506, the jacking block 502 can be driven to move up and down along the guide rail 501 through the boosting block 509, and further the lifting block 405 can be driven to move up and down through the push-pull rod 503 to adjust the height position of the solar panel 401 to avoid the water flow from contacting the solar panel 401.

[0080] As described above, a construction method of a pneumatic shield gate system for a hydropower station, as Figure 6 shown, includes the following steps:

[0081] 1) Construction of the dam body 1

[0082] a. First, determine the construction position of the pneumatic shield gate system at the location of the hydropower station and clean the construction position;

[0083] b. Then, determine the construction positions of the dam bodies 1 along both sides of the hydropower station, form the required dam bodies 1 by concrete pouring, and open arc-shaped grooves 101 on the two dam bodies 1. At the same time, installation holes are opened at the bottom of one side of the dam bodies 1 along the arc-shaped grooves 101, so that the installation holes on the two dam bodies 1 are on the same horizontal straight line;

[0084] 2) Construction of the airbag mechanism 6

[0085] a. First, determine the installation position of the airbag mechanism 6 according to the rotation angle requirements of the steel shield, and select the first airbag 601, the second airbag 602 and the third airbag 603 with appropriate sizes;

[0086] b. Horizontally arrange the first airbag 601 at the bottom position along the installation of the steel shield between the two dams 1, and make the adjacent first airbags 601 communicate with each other. Then, horizontally arrange the second airbag 602 along one side of the first airbag 601 between the two dams 1. The second airbag 602 is far from the steel shield. At the same time, install the second air pipeline 604 between the first airbag 601 and the second airbag 602, and install the third solenoid valve 605 on the second air pipeline 604;

[0087] c. Then install the third airbag 603 between the tops of the first airbag 601 and the second airbag 602, so that the third airbag 603 is horizontally arranged between the two dams 1. Install the third air pipeline 606 between the second airbag 602 and the third airbag 603, and install the fourth solenoid valve 607 on the third air pipeline 606;

[0088] d. Finally, fabricate a suitable air pump box 103 according to the design requirements, install an air pump in the air pump box 103, and connect the air pump to the first airbag 601 through an air pipeline;

[0089] 3) Construction of rotating the steel shield 2

[0090] a. First, determine the size of the rotating steel shield 2 according to the horizontal distance between the two dams 1, and fabricate the corresponding rotating steel shield 2. A groove 201 is formed inside the rotating steel shield 2, and a T-shaped groove 202 is opened along the opening side of the groove 201. Install a hydraulic cylinder 302 with a piston rod 303 along the inner bottom side of the groove 201;

[0091] b. Then install rotating shafts 203 along the bottom sides of both sides of the rotating steel shield 2, so that the size of the rotating shafts 203 matches the installation holes;

[0092] c. Next, install an oil pipeline 204 on the water-facing side of the rotating steel shield 2, so that the oil pipeline 204 communicates with the hydraulic cylinder 302. The other end of the oil pipeline 204 is connected to a hydraulic oil tank 102. The hydraulic oil tank 102 is installed on one side of the dam 1. An oil pump is provided inside the hydraulic oil tank 102, and a first solenoid valve 205 is installed on the oil pipeline 204;

[0093] d. Finally, insert the rotating shafts 203 of the rotating steel shield 2 into the installation holes of the dams 1, so that the rotating steel shield 2 is rotatably connected between the two dams 1;

[0094] 4) Construction of moving the steel shield 3

[0095] a. First, determine the size of the moving steel shield 3 according to the size of the groove 201, and machine the corresponding moving steel shield 3. The size of the moving steel shield 3 matches the groove 201;

[0096] b. Then install T-shaped guide bars 304 along the upper surface of the moving steel shield 3, so that the T-shaped guide bars 304 match the T-shaped grooves 202;

[0097] c. Then, symmetrically open clamping grooves 307 on both sides of the movable steel shield 3, install side airbags 308 in the clamping grooves 307, install a first air pipe 305 on the end face of the movable steel shield 3, the first air pipe 305 communicates with the side airbags 308, a second solenoid valve 306 is installed on the first air pipe 305, and the first air pipe 305 communicates with an air pump;

[0098] d. Finally, install the processed movable steel shield in the groove 201 of the rotating steel shield, connect the piston rod 303 to the bottom end face of the movable steel shield, and limit the T-shaped guide bar 304 in the T-shaped groove 202;

[0099] 5) Construction of the solar photovoltaic mechanism 4

[0100] a. First, process corresponding cross beams 402 and solar panels 401 according to the dimensions between the two dams 1, install columns 406 on the top surface of the dam 1, connect the cross beam 402 to the column 406 through a lifting block 405, then symmetrically install second connecting columns 404 on the top surface of the cross beam 402, and connect the solar panel 401 to the second connecting column 404 through a first connecting column 403. A second support block 505 is installed on the side surface of the lifting block 405;

[0101] b. Then, install a motor 506, a stop block 508, and a guide rail 501 on the dam 1. The motor 506 is connected to the stop block 508 through a screw rod 507. The guide rail 501 is located on one side of the screw rod 507. Then, install a pushing block 502 on the guide rail 501. The pushing block 502 is connected to the screw rod 507 through a boosting block 509. A first support block 504 is installed on the pushing block 502, and the first support block 504 is connected to the second support block 505 through a push-pull rod 503;

[0102] c. Next, install a control box 104 on the dam 1. The control box 104 is electrically connected to the motor 506, the solar panel 401, the oil pump, and the air pump through wires;

[0103] 6) Operation of the pneumatic shield gate system

[0104] a. First, rotate the rotating steel shield 2 to the required angular position for support, control the air pump box 103 to work through the control box 104, the air pump box 103 inflates the second airbag 602, open the second solenoid valve 306, and make the gas in the second airbag 602 enter the first airbag 601 to realize the support and fixation of the rotating steel shield 2;

[0105] b. Then, start the hydraulic oil tank 102 according to the length of the steel shield, inject hydraulic oil into the hydraulic cylinder 302, drive the movable steel shield 3 to extend along the groove 201 to the required length through the piston rod 303, and then start the third solenoid valve 605 to make the gas in the second airbag 602 enter the third airbag 603 until the third airbag 603 completely supports the movable steel shield 3;

[0106] c. Then, the side airbag 308 is inflated through the air pump box 103, and after the side airbag 308 expands, it is limited in the arc-shaped groove 101 for sealing.

[0107] This construction method has simple steps, which can not only improve the construction efficiency of the pneumatic shield gate system, but also contribute to improving the stability of the entire pneumatic shield gate system and meeting the adjustment requirements of different water levels.

[0108] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve substantially the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A pneumatic shield gate system for a hydropower station, comprising a dam body, on which a control box is provided, and a battery pack is arranged inside the control box; and a steel shield, which is arranged between the two dam bodies; It is characterized in that: the steel shield includes a rotating steel shield and a moving steel shield, the rotating steel shield is rotatably connected between the two dam bodies, and the moving steel shield is movably connected to the rotating steel shield for adjusting the overall area of the steel shield; and an airbag mechanism, which supports the rotating steel shield and the moving steel shield; a solar photovoltaic mechanism is arranged between the tops of the two dam bodies, and the solar photovoltaic mechanism is connected to the dam body through a pushing mechanism; the solar photovoltaic mechanism includes a solar panel, a cross beam, a first connecting column, a second connecting column and a column, the columns are respectively fixed on the dam body, the cross beam is movably connected to the columns through a lifting block, the second connecting column is fixed on the top of the cross beam, and the solar panel is connected to the second connecting column through the first connecting column; the pushing mechanism includes a motor, a screw rod, a guide rail, a pushing block and a push rod, the motor and the guide rail are arranged on the dam body, the motor is connected to a stop block through the screw rod, the pushing block is slidably connected to the guide rail, the pushing block is connected to the screw rod through a boosting block, first support blocks and second support blocks are respectively arranged on the pushing block and the lifting block, and the two ends of the push rod are rotatably connected to the first support block and the second support block.

2. The pneumatic shield gate system for a hydropower station according to claim 1, wherein: The moving steel shield is movably connected to the groove of the rotating steel shield through a hydraulic mechanism and a limiting mechanism.

3. The pneumatic shield gate system for a hydropower station according to claim 2, wherein: The hydraulic mechanism includes a hydraulic cylinder, an oil pipeline, a first solenoid valve and a hydraulic oil tank. The hydraulic cylinder is arranged inside the rotating steel shield, the hydraulic cylinder is connected to the moving steel shield through a piston rod, the oil pipeline is arranged on the rotating steel shield, the oil pipeline connects the hydraulic cylinder and the hydraulic oil tank, the first solenoid valve is arranged on the oil pipeline, the hydraulic oil tank is arranged on the dam body, and an oil pump is arranged inside the hydraulic oil tank.

4. The pneumatic shield gate system for a hydropower station according to claim 2, wherein: The limiting mechanism includes a T-shaped guide bar and a T-shaped groove. The T-shaped guide bar is arranged on the moving steel shield, the T-shaped groove is arranged on the rotating steel shield, and the T-shaped guide bar matches the T-shaped groove.

5. The pneumatic shield gate system for a hydropower station according to claim 1, wherein: The airbag mechanism includes a first airbag, a second airbag and a third airbag. The first airbag is distributed closely to one side of the rotating steel shield, the second airbag is arranged on the other side of the first airbag, the third airbag is arranged on the top of the first airbag and the second airbag, the third airbag supports the moving steel shield, the first airbag is connected to the second airbag through a second air pipeline, the second airbag is connected to the third airbag through a third air pipeline, a third solenoid valve and a fourth solenoid valve are respectively arranged on the second air pipeline and the third air pipeline, and the second airbag communicates with an air pump box, and the air pump box is arranged on the side of the dam body.

6. The pneumatic shield gate system for a hydropower station according to claim 5, characterized in that: On one side of the dam body close to the movable steel shield, there is an arc-shaped groove. On both sides of the movable steel shield, there are symmetrically arranged clamping grooves. Inside the clamping grooves, there are side air bags. On the movable steel shield, there is a first air pipe. The first air pipe communicates with the air pump box and the side air bags. A second solenoid valve is arranged on the first air pipe. The air pump box supplies air to the side air bags through the first air pipe, so that the side air bags expand and are limited in the arc-shaped groove, realizing the sealing between the movable steel shield and the dam body.

7. The construction method of a pneumatic shield gate system for a hydropower station according to any one of claims 1 to 6, characterized in that It includes the following steps: 1) Dam body construction a. First, determine the construction position of the pneumatic shield gate system at the location of the hydropower station and clean the construction position; b. Then, determine the construction positions of the dam bodies along both sides of the hydropower station. Pour concrete to form the required dam bodies, and open arc-shaped grooves on the two dam bodies. At the same time, open installation holes at the bottom of one side of the dam body along the arc-shaped groove, so that the installation holes on the two dam bodies are on the same horizontal straight line; 2) Air bag mechanism construction a. First, determine the installation position of the air bag mechanism according to the rotation angle requirement of the steel shield, and select the first air bag, the second air bag and the third air bag with appropriate sizes; b. Horizontally arrange the first air bags between the two dam bodies along the bottom position where the steel shield is installed, and adjacent first air bags are communicated with each other. Then, horizontally arrange the second air bags between the two dam bodies along one side of the first air bags. The second air bags are far away from the steel shield. At the same time, install a second air pipe between the first air bags and the second air bags, and install a third solenoid valve on the second air pipe; c. Then, install the third air bag between the tops of the first air bag and the second air bag, so that the third air bag is horizontally arranged between the two dam bodies. Install a third air pipe between the second air bag and the third air bag, and install a fourth solenoid valve on the third air pipe; d. Finally, make a suitable air pump box according to the design requirements, install an air pump in the air pump box, and connect the air pump to the first air bag through an air pipe; 3) Rotating steel shield construction a. First, determine the size of the rotating steel shield according to the horizontal distance between the two dam bodies, and make the corresponding rotating steel shield. A groove is formed inside the rotating steel shield, a T-shaped groove is opened along the opening side of the groove, and a hydraulic cylinder with a piston rod is installed along the inner bottom side of the groove; b. Then, install rotating shafts along the bottom sides of both sides of the rotating steel shield, so that the size of the rotating shafts matches the installation holes; c. Then, install an oil pipe on the water-facing side of the rotating steel shield, so that the oil pipe communicates with the hydraulic cylinder. The other end of the oil pipe is connected to a hydraulic oil tank. The hydraulic oil tank is installed on one side of the dam body. There is an oil pump in the hydraulic oil tank, and a first solenoid valve is installed on the oil pipe; d. Finally, insert the rotating shaft of the rotating steel shield into the installation hole of the dam body, so that the rotating steel shield is rotatably connected between the two dam bodies; 4) Movable steel shield construction a. First, determine the size of the movable steel shield according to the size of the groove, and process the corresponding movable steel shield. The size of the movable steel shield matches the groove; b. Then, install T-shaped guide bars along the upper surface of the movable steel shield, so that the T-shaped guide bars match the T-shaped grooves; c. Then, symmetrically open clamping grooves on both sides of the movable steel shield, install side airbags in the clamping grooves, install a first air delivery pipe on the end face of the movable steel shield, connect the first air delivery pipe to the side airbags, install a second electromagnetic valve on the first air delivery pipe, and connect the first air delivery pipe to an air pump; d. Finally, install the processed movable steel shield in the groove of the rotating steel shield, connect the piston rod to the bottom end face of the movable steel shield, and limit the T-shaped guide bar in the T-shaped groove; 5) Construction of the solar photovoltaic mechanism a. First, process corresponding cross beams and solar panels according to the dimensions between the two dams, install columns on the top surface of the dam, connect the cross beams to the columns through lifting blocks, then symmetrically install second connecting columns on the top surface of the cross beams, connect the solar panels to the second connecting columns through first connecting columns, and install second support blocks on the side surfaces of the lifting blocks; b. Then, install a motor, a stop block, and a guide rail on the dam, connect the motor to the stop block through a screw rod, place the guide rail on one side of the screw rod, then install a push block on the guide rail, connect the push block to the screw rod through a boosting block, install a first support block on the push block, and connect the first support block to the second support block through a push rod; c. Next, install a control box on the dam, and electrically connect the control box to the motor, the solar panel, the oil pump, and the air pump through wires; 6) Operation of the pneumatic shield gate system a. First, rotate the rotating steel shield to the required angular position for support, control the air pump box to work through the control box, inflate the second airbag with the air pump box, open the second electromagnetic valve, and make the gas in the second airbag enter the first airbag to realize the support and fixation of the rotating steel shield; b. Then, start the hydraulic oil tank according to the length of the steel shield, inject hydraulic oil into the hydraulic cylinder, drive the movable steel shield to extend along the groove to the required length through the piston rod, and then start the third electromagnetic valve to make the gas in the second airbag enter the third airbag until the third airbag completely supports the movable steel shield; c. Next, inflate the side airbags with the air pump box, and make the side airbags expand and be limited in the arc-shaped groove for sealing.

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