CN110847128A - A kind of retaining dam and method for regulating water flow - Google Patents

Abstract

The invention relates to the technical field of retaining dams, in particular to a retaining dam and a method for regulating and controlling water flow of the retaining dam. The technical scheme of the invention is realized as follows: the utility model provides a water retaining dam, includes the dam body, rotates the gate that sets up on the dam body, its characterized in that: the gate is provided with a power unit for driving the gate to turn over on the dam body; the power unit comprises a ventilation cavity which is arranged on the gate and used for water-gas exchange and a ventilation device which is used for water-gas exchange in the ventilation cavity, wherein the ventilation cavity controls the gate to turn over in water through internal water-gas exchange, and the power unit has the advantages that: the water retaining dam is strong in stability, high in safety performance and convenient to maintain.

Description

A kind of retaining dam and method for regulating water flow

technical field

The invention relates to the technical field of dams, in particular to a dam and a method for regulating water flow.

Background technique

Dam, a water retaining structure built under water, in the process of use, mainly by raising and lowering the height of the gate on the dam to adjust the height of the water to realize the functions of water storage and flood discharge.

At this stage, hydraulic cylinders, pneumatic cylinders, and airbag buoyancy are usually used to control the height of the gate; there are still some problems with this method:

1. The driving method of hydraulic cylinder and pneumatic cylinder is used, which consumes a lot of energy, and is usually installed under the gate, which is inconvenient for maintenance and repair.

2. The height of the gate is controlled by inflating and degassing the air bag. Since the air bag is a flexible structure, it is easy to deform under water, and there is an unstable problem. Secondly, the air bag is exposed and easily damaged.

SUMMARY OF THE INVENTION

Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a dam and a method for regulating water flow.

The technical scheme of the present invention is achieved as follows: a dam, comprising a dam body and a gate that is rotatably arranged on the dam body, characterized in that: a power unit for driving the gate to be turned over on the dam body is installed on the gate; The power unit includes a ventilation chamber arranged on the gate for water and gas exchange and a ventilation device for performing water and gas exchange in the ventilation cavity, and the ventilation cavity controls the flow of the gate in water through internal water and gas exchange. flip.

Preferably, the ventilation device includes a ventilation part installed on the shutter and used to control the water-air exchange in the ventilation cavity by inflating or pumping air into the ventilation cavity.

Preferably, the ventilation device further comprises a water exchange part installed on the gate and used to control the water and gas exchange in the ventilation cavity by filling or pumping water into the ventilation cavity.

Preferably, the ventilation part includes an air suction component and an inflation component arranged on the top of the gate, and a water outlet arranged on the lower part of the sluice; a stop valve is installed on the water outlet.

Preferably, the air extraction assembly includes an air compressor, an air intake pipe, and a shut-off valve arranged on the air intake pipe to control the opening and closing of the air intake pipe; the air compressor is installed on the dam body; The trachea communicates with the ventilation chamber.

Preferably, the inflatable assembly includes an air outlet pipe arranged on the air compressor; the air outlet pipe is provided with a relief valve for controlling the on-off of the air outlet pipe.

Preferably, the air outlet pipe is provided with a proportional valve for controlling the flow rate of the air outlet pipe.

Preferably, the water exchange part includes a water pumping assembly, a draining assembly and an exhaust port arranged on the gate; a pressure check valve for controlling the flow of air in the exhaust port is installed on the exhaust port.

Preferably: the water pumping assembly includes a suction pump and a suction pipe; the suction pump is installed at the bottom of the gate, and the input port of the suction pump is outward; the output port of the suction pump passes through the suction pipe and the gate on the gate. The ventilation chamber is communicated.

Preferably, the drainage assembly includes a drainage pump and a drainage pipe; the drainage pump is installed on the inner wall of the bottom of the ventilation cavity, and the input port of the drainage pump is inside the ventilation cavity; the output port of the drainage pump is connected to the ventilation cavity. One end of the drain pipe is connected; the other end of the drain pipe penetrates the bottom wall of the ventilation chamber and extends to the outside of the gate.

Through the above technical solution, firstly, the water vapor exchange method is used to drive the valve to turn over. This method can solve the traditional driving method using hydraulic cylinder and pneumatic cylinder, which consumes a lot of energy and uses airbag inflation and air extraction to control the gate. In a high-level way, since the airbag is a flexible structure, it is easy to deform under water, and there is a problem of instability; energy and manpower are saved; and the stability and safety of the gate are improved; by setting the water-air exchange device as a ventilation part , the water exchange part and even the combination of the air exchange part and the water exchange part to perform water-air conversion; the air exchange part can compress the gas into the ventilation cavity through the inflatable component. The gas in the cavity pushes the water out along the discharge port until the inside is filled with gas, and the gate floats up. During this process, the floating height of the gate can be controlled according to the water output of the inflatable component. Because the air volume of the water output wall is well controlled, the floating height can be controlled. The height control is more precise, and the floating speed can be controlled by the inflation speed of the inflatable component, which is simple and convenient; The air outlet pipe of the air compressor is discharged, and the air pressure inside the ventilation chamber is changed, so as to realize the control of the turning of the valve. This method can make the turning of the valve more stable; by using the water exchange part and the ventilation part at the same time, this method can Increase the turning speed of the gates under stable conditions, and when one of them fails and needs maintenance, the gates can still be used normally, ensuring that the work is carried out normally.

The present invention is further provided as follows: the dam body is provided with a water stop plate for limiting the displacement of the gate; the gate is provided with a first support block for hanging on the upper surface of the water stop plate when the gate falls to the lowest point, and a water stop plate for When the gate rises to the highest point, it abuts against the second support block on the lower surface of the water stop plate.

Preferably, water-stop rubber is installed on both the upper surface and the lower surface of the water-stop plate.

Preferably, an inner cavity is arranged on the water-stop rubber, and a plurality of air holes are arranged on the side wall of the inner cavity.

Through the above technical solution, when the gate is lowered, the first support plate is pressed on the upper surface of the water stop plate, so that the first support plate on the gate is engaged with the water stop plate, so as to prevent the sediment in the water flow along the gap between the gate and the dam body. The gap enters the foundation pit, and at the same time stabilizes the gate to ensure the safety and stability of the gate; when the airbag drives the gate to rise, when the gate rises to the highest point, the second support plate presses against the lower surface of the water stop plate, which can prevent the gate from running The height exceeds the predetermined height, which affects the water storage effect; improves the safety performance; and the water-stop rubber is arranged on the upper and lower surfaces of the water-stop plate to further prevent the penetration of water flow and improve the stability of the gate; the water-stop rubber is provided with an inner cavity, And there are several air holes on the side wall of the inner cavity. When the first support plate or the second support plate is engaged with the water stop plate, the water stop rubber between them can be better deformed, further improving the waterproof performance, and when When the first support plate or the second support plate leaves the water stop plate, the outside air can enter the inner cavity of the water stop rubber along the air holes, and the water stop rubber returns to its original appearance, ensuring that the waterproof effect can still be achieved during the second bite.

In the present invention, the dam body on the upstream side of the gate is further provided with a sand settling tank for sedimentation.

By adopting the above-mentioned technical scheme, the sand settling tank is provided to increase the water depth through the sand settling tank. Sediment deposits, protecting the gate in this way.

The present invention is further provided that: the dam body on the downstream side of the gate is provided with a stilling pool for preventing the dam body from being corroded by hydraulic force.

By adopting the above technical solution, by setting up the stilling pool, the water flow falling from the dam body will enter the stilling pool. Since there is water in the stilling pool, the water in the stilling pool can act as a resistance to the water flowing into the stilling pool. Therefore, the water flow does not directly impact the dam body, and the dam body is protected.

The present invention is further set as: a method for regulating water flow of a dam, the content is as follows:

S1 water storage: When water storage is required, the staff can press the outside air into the ventilation chamber by running the air compressor, the air pressure in the ventilation chamber rises, and the original water body in the ventilation chamber is discharged through the drain port , During this process, due to the increase in the gas in the ventilation chamber on the gate, the buoyancy of the gate becomes larger, the gate rises, and water storage begins; another way is that when water storage is required, the staff can Due to the atmospheric pressure, the outside air will enter the ventilation chamber with the air inlet, the buoyancy of the gate will increase, the gate will rise, and the water storage will begin;

S2 flood discharge: When flood discharge is required, the staff can pass through, and the air compressor will suck out the internal air during ventilation, and the internal air pressure will decrease during the ventilation, and the air in the foundation pit of the dam will flow back along the drainage outlet and flow into the In the ventilation chamber, the buoyancy received by the gate outside the ventilation chamber is reduced, and the gate begins to fall to discharge the flood. During this process, the staff can control the proportional valve to control the opening size of the exhaust pipe and control the gas loss rate in the gate. In this way, the flood discharge speed of the gate is controlled; another way is that when flood discharge is required, the staff can send water to the ventilation chamber through the pump box, and the ventilation chamber enters with the water flow, and the internal gas is discharged along the exhaust port, and the gate is discharged. The buoyancy decreases, and the gate descends to start flood discharge.

Through the above-mentioned method for regulating water flow, it is possible to effectively control the roll-over height and roll-over speed of the gate, and achieve the effects of saving energy and facilitating maintenance and repair.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of a specific embodiment of the present invention;

Figure 2 is a schematic diagram of the structure of the ventilation part;

Fig. 3 is the structural representation of the water exchange part;

Fig. 4 is the concrete structure schematic diagram of ventilation part;

Fig. 5 is the concrete structure schematic diagram of the water exchange part;

Figure 6 is a schematic diagram of the structure of the water-stopping rubber.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of 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.

Example 1

As shown in Figures 1-5, the present invention discloses a dam, comprising a dam body 1 and a gate 2 rotatably arranged on the dam body 1. In the specific embodiment of the present invention, the gate 2 is installed with a The power unit 3 that drives the gate 2 to turn over on the dam body 1; the power unit 3 includes a ventilation cavity 21 arranged on the gate 2 for water and gas exchange and a ventilation cavity for water and gas exchange in the ventilation cavity 21. In the device 4, the ventilation chamber 21 controls the inversion of the gate 2 in water through internal water and gas exchange.

In the specific embodiment of the present invention, the ventilation device 4 includes a ventilation part 41 installed on the shutter 2 and used to control the water-air exchange in the ventilation cavity 21 by inflating or pumping air into the ventilation cavity 21 .

In the specific embodiment of the present invention, the ventilation device 4 further includes a water exchange part 42 installed on the gate 2 and used to control the water and gas exchange in the ventilation cavity 21 by filling or pumping water into the ventilation cavity 21 . .

In the specific embodiment of the present invention, the ventilation part 41 includes a suction component 411 and an inflation component 412 arranged at the top of the gate 2 and a drain port 413 arranged at the lower part of the gate 2; the drain port 413 is provided with a stop valve 414.

In the specific embodiment of the present invention, the air extraction assembly 411 includes an air compressor 4111, an air intake pipe 4112, and a shut-off valve 4113 arranged on the air intake pipe 4112 to control the on-off of the air intake pipe; the air compressor is installed in the On the dam body 1; its output port communicates with the ventilation chamber 21 through the air intake pipe 4112.

In a specific embodiment of the present invention, the inflation assembly 412 includes an air outlet pipe 4121 arranged on the air compressor 4111; the air outlet pipe 4121 is provided with a relief valve 4122 for controlling the on-off of the air outlet pipe.

In a specific embodiment of the present invention, a proportional valve 4123 for controlling the flow rate of the air outlet pipe 4121 is installed on the air outlet pipe 4121 .

In a specific embodiment of the present invention, the water exchange part 42 includes a water pumping assembly 421, a draining assembly 422, and an exhaust port 423 provided on the gate 2; the exhaust port 423 is provided with a control exhaust port The pressure check valve 424 for shutting off the air flow in 423.

In a specific embodiment of the present invention, the water pumping assembly 421 includes a suction pump 4211 and a suction pipe 4212; the suction pump 4211 is installed at the bottom of the gate 2, and the input port of the suction pump 4211 is outward; the suction pump 4211 The outlet of the sluice is communicated with the ventilation chamber 21 on the gate 2 through the water suction pipe 4212.

In the specific embodiment of the present invention, the drainage assembly 422 includes a drainage pump 4221 and a drainage pipe 4222; the drainage pump 4221 is installed on the inner wall of the bottom of the ventilation chamber 21, and the input port of the drainage pump 4221 is in the ventilation chamber 21; the output port of the drainage pump 4221 communicates with one end of the drainage pipe 4222;

Through the above technical solution, firstly, the water vapor exchange method is used to drive the valve to turn over. This method can solve the traditional driving method using hydraulic cylinder and pneumatic cylinder, which consumes a lot of energy and uses airbag inflation and air extraction to control the gate. In a high-level way, since the airbag is a flexible structure, it is easy to deform under water, and there is a problem of instability; energy and manpower are saved; and the stability and safety of the gate are improved; by setting the water-air exchange device as a ventilation part , the water exchange part and even the combination of the air exchange part and the water exchange part to perform water-air conversion; the air exchange part can compress the gas into the ventilation cavity through the inflatable component. The gas in the cavity pushes the water out along the discharge port until the inside is filled with gas, and the gate floats up. During this process, the floating height of the gate can be controlled according to the water output of the inflatable component. Because the air volume of the water output wall is well controlled, the floating height can be controlled. The height control is more precise, and the floating speed can be controlled by the inflation speed of the inflatable component, which is simple and convenient; The air outlet pipe of the air compressor is discharged, and the air pressure inside the ventilation chamber is changed, so as to realize the control of the turning of the valve. This method can make the turning of the valve more stable; by using the water exchange part and the ventilation part at the same time, this method can Increase the turning speed of the gates under stable conditions, and when one of them fails and needs maintenance, the gates can still be used normally, ensuring that the work is carried out normally.

Embodiment 2, the difference from embodiment 1 is

As shown in FIG. 1 and FIG. 6 , in the specific embodiment of the present invention, the dam body 1 is provided with a water stop plate 5 for limiting the displacement of the gate 2; The first support block 6 hangs on the upper surface of the water stop plate 5 at the point of contact, and the second support block 7 is used to abut the lower surface of the water stop plate 5 when the gate 2 rises to the highest point.

In the specific embodiment of the present invention, the water-stop rubber 51 is installed on both the upper surface and the lower surface of the water-stop plate 5 .

In the specific embodiment of the present invention, the water-stop rubber 51 includes an inner cavity 511 , and a plurality of air holes 512 are arranged on the side wall of the inner cavity 511 .

Through the above technical solution, when the gate is lowered, the first support plate is pressed on the upper surface of the water stop plate, so that the first support plate on the gate is engaged with the water stop plate, so as to prevent the sediment in the water flow along the gap between the gate and the dam body. The gap enters the foundation pit, and at the same time stabilizes the gate to ensure the safety and stability of the gate; when the airbag drives the gate to rise, when the gate rises to the highest point, the second support plate presses against the lower surface of the water stop plate, which can prevent the gate from running The height exceeds the predetermined height, which affects the water storage effect; improves the safety performance; and the water-stop rubber is arranged on the upper and lower surfaces of the water-stop plate to further prevent the penetration of water flow and improve the stability of the gate; the water-stop rubber is provided with an inner cavity, And there are several air holes on the side wall of the inner cavity. When the first support plate or the second support plate is engaged with the water stop plate, the water stop rubber between them can be better deformed, further improving the waterproof performance, and when When the first support plate or the second support plate leaves the water stop plate, the outside air can enter the inner cavity of the water stop rubber along the air holes, and the water stop rubber returns to its original appearance, ensuring that the waterproof effect can still be achieved during the second bite.

Embodiment 3, the difference from embodiment 2 is

As shown in FIG. 1 , in the specific embodiment of the present invention, the dam body 1 on the upstream side of the gate 2 is provided with a sand settling tank 8 for sediment precipitation.

By adopting the above-mentioned technical scheme, the sand settling tank is provided to increase the water depth through the sand settling tank. Sediment deposits, protecting the gate in this way.

Embodiment 4, the difference from embodiment 3 is

As shown in FIG. 1 , in the specific embodiment of the present invention, the dam body 1 on the downstream side of the gate 2 is provided with a stilling pool 9 for preventing the dam body 1 from being corroded by water.

By adopting the above technical solution, by setting up the stilling pool, the water flow falling from the dam body will enter the stilling pool. Since there is water in the stilling pool, the water in the stilling pool can act as a resistance to the water flowing into the stilling pool. Therefore, the water flow does not directly impact the dam body, and the dam body is protected.

Example 5

The present invention is further set as: a method for regulating water flow of a dam, the content is as follows:

S1 water storage: When water storage is required, the staff can press the outside air into the ventilation chamber by running the air compressor, the air pressure in the ventilation chamber rises, and the original water body in the ventilation chamber is discharged through the drain port , During this process, due to the increase in the gas in the ventilation chamber on the gate, the buoyancy of the gate becomes larger, the gate rises, and water storage begins; another way is that when water storage is required, the staff can Due to the atmospheric pressure, the outside air will enter the ventilation chamber with the air inlet, the buoyancy of the gate will increase, the gate will rise, and the water storage will begin;

S2 flood discharge: When flood discharge is required, the staff can pass through, and the air compressor will suck out the internal air during ventilation, and the internal air pressure will decrease during the ventilation, and the air in the foundation pit of the dam will flow back along the drainage outlet and flow into the In the ventilation chamber, the buoyancy received by the gate outside the ventilation chamber is reduced, and the gate begins to fall to discharge the flood. During this process, the staff can control the proportional valve to control the opening size of the exhaust pipe and control the gas loss rate in the gate. In this way, the flood discharge speed of the gate is controlled; another way is that when flood discharge is required, the staff can send water to the ventilation chamber through the pump box, and the ventilation chamber enters with the water flow, and the internal gas is discharged along the exhaust port, and the gate is discharged. The buoyancy decreases, and the gate descends to start flood discharge.

Through the above-mentioned method for regulating water flow, it is possible to effectively control the roll-over height and roll-over speed of the gate, and achieve the effects of saving energy and facilitating maintenance and repair. .

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (16)

1. The utility model provides a water retaining dam, includes the dam body, rotates the gate that sets up on the dam body, its characterized in that: the gate is provided with a power unit for driving the gate to turn over on the dam body; the power unit comprises a ventilation cavity which is arranged on the gate and used for water-gas exchange and a ventilation device which is used for water-gas exchange in the ventilation cavity, wherein the ventilation cavity controls the gate to turn over in water through internal water-gas exchange.

2. A barrage as claimed in claim 1, wherein: the ventilation device comprises a ventilation part which is arranged on the gate and is used for controlling water-gas exchange in the ventilation cavity by inflating or exhausting air to the ventilation cavity.

3. A barrage as claimed in claim 1, wherein: the air interchanger also comprises a water exchanging part which is arranged on the gate and is used for controlling water-gas exchange in the air interchanging cavity by filling water or pumping water to the air interchanging cavity.

4. A barrage as claimed in claim 2, wherein: the air exchange part comprises an air exhaust component and an air inflation component which are arranged at the top of the gate and a water outlet which is arranged at the lower part of the gate; and a stop valve is arranged on the water outlet.

5. A barrage as claimed in claim 4, wherein: the air exhaust assembly comprises an air compressor, an air inlet pipe and a stop valve arranged on the air inlet pipe and used for controlling the on-off of the air inlet pipe; the air compressor is arranged on the dam body; the output port of the air inlet pipe is communicated with the air exchange cavity through an air inlet pipe.

6. A barrage as claimed in claim 5, wherein: the air inflation assembly comprises an air outlet pipe arranged on the air compressor; and the air outlet pipe is provided with an air escape valve for controlling the on-off of the air outlet pipe.

7. A barrage as claimed in claim 6, wherein: and the air outlet pipe is provided with a proportional valve for controlling the flow of the air outlet pipe.

8. A barrage as claimed in claim 3, wherein: the water changing part comprises a water pumping assembly, a water discharging assembly and an exhaust port arranged on the gate; and a pressure stop valve for controlling the on-off of air flow in the exhaust port is arranged on the exhaust port.

9. A barrage as claimed in claim 8, wherein: the water pumping assembly comprises a water pump and a water suction pipe; the water suction pump is arranged at the bottom of the gate, and an input port of the water suction pump faces outwards; and the output port of the water suction pump is communicated with the ventilation cavity on the gate through the water suction pipe.

10. A barrage as claimed in claim 9, wherein: the drainage assembly comprises a drainage pump and a drainage pipe; the drainage pump is arranged on the inner wall of the bottom of the ventilation cavity, and an input port of the drainage pump is arranged inside the ventilation cavity; the output port of the drainage pump is communicated with one end of the drainage pipe; the other end of the drain pipe penetrates through the bottom wall of the air exchange cavity and extends outwards the gate.

11. A barrage according to any one of claims 1 to 3, wherein: a water stop plate for limiting the displacement of the gate is arranged on the dam body; and the gate is provided with a first supporting block which is used for hanging the upper surface of the water stop plate when the gate falls to the lowest point and a second supporting block which is used for propping against the lower surface of the water stop plate when the gate rises to the highest point.

12. A barrage as claimed in any one of claims 11, wherein: and water stopping rubber is arranged on the upper surface and the lower surface of the water stopping plate.

13. A barrage as claimed in any one of claims 12, wherein: an inner cavity is formed in the water stop rubber, and a plurality of air holes are formed in the side wall of the inner cavity.

14. A barrage according to any one of claims 1 to 3, wherein: and a sand settling tank for settling the silt is arranged on the dam body at the upstream side of the gate.

15. A barrage according to any one of claims 1 to 3, wherein: and a stilling pool for preventing the dam body from being eroded by water power is arranged on the dam body on the downstream side of the gate.

16. A method for regulating and controlling water flow of a retaining dam comprises the following steps:

s1 water storage: when water needs to be stored, a worker can press outside air into the ventilation cavity by operating the air compressor, the air pressure in the ventilation cavity rises, and the original water in the ventilation cavity is discharged through the water outlet; the other mode is that when water needs to be stored, a worker can discharge the water body in the air exchange cavity through a drainage pump on the water exchange part, due to the atmospheric pressure, outside air enters the air exchange cavity along with the air inlet, the buoyancy of the gate is increased, the gate rises, and water storage starts;

s2 flood discharge: when flood discharge is needed, workers can suck out air in ventilation through the air compressor, the air pressure in the ventilation is reduced, the air in a foundation pit of the dam body flows back along the water outlet and flows into the ventilation cavity, the buoyancy received by the gate outside the ventilation cavity is reduced, the gate begins to fall down for flood discharge, and the workers can control the proportional valve to control the opening size of the channel of the exhaust pipe and control the gas loss speed in the gate in the process so as to control the flood discharge speed of the gate; the other mode is that, when flood discharge is needed, a worker can send water through the ventilation cavity of the water pumping pump box, internal gas is discharged along the exhaust port along with the entering of water flow in the ventilation cavity, the buoyancy force borne by the gate is reduced, and the gate descends to start flood discharge.

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