CN114855712A

CN114855712A - Gate with function of making an uproar is fallen

Info

Publication number: CN114855712A
Application number: CN202110156584.1A
Authority: CN
Inventors: 张稻英; 徐强
Original assignee: Nanjing Geying Water Conservancy Technology Co ltd
Current assignee: Nanjing Geying Water Conservancy Technology Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2022-08-05

Abstract

The invention provides a gate with a noise reduction function, which comprises a plurality of gate leaves, wherein each gate leaf comprises a first gate plate positioned on the upstream side and a second gate plate positioned on the downstream side; a water passing channel is arranged between the first gate plate and the second gate plate, and a water inlet end and a water outlet end which are communicated with the water passing channel are respectively arranged on the first gate plate and the second gate plate; the first and/or second shutter plates are hollow shutter plates. According to the gate with the noise reduction function, the first gate plate and/or the second gate plate are/is internally of a hollow structure, so that a noise reduction cavity is formed around the water inlet end and/or the water outlet end, and noise generated by water flow in and/or out is effectively reduced.

Description

Gate with function of making an uproar is fallen

Technical Field

The invention relates to the technical field of hydraulic engineering, in particular to a gate with a noise reduction function.

Background

The gate is a hydraulic structure with water retaining and draining functions, and is built at the sides of river channels, reservoirs and lakes. The gate is closed, so that flood blocking, tide blocking and water level raising can be realized, and the requirement of upstream water taking or navigation can be met; the gate is opened, so that flood discharge, waterlogging drainage, sand flushing, water taking or flow regulation according to the downstream water demand can be realized.

In order to form an ornamental landscape on a river channel, landscape gates have been developed in the prior art, wherein the most common type of gate is a bottom-shaft turnover type steel dam gate, and the gate is installed on the river channel, so that the landscape gate has the advantages of good landscape effect, convenience and rapidness in operation (maintenance), flexibility in opening and closing, stepless adjustability of gate opening, convenience in scheduling, hidden opening and closing equipment, no obstacle to landscape, no navigation and the like, cannot cause adverse effects on the landscape of the original river channel, and the time for opening and closing the gate is short, so that timely and effective flood discharge can be ensured during sudden flood.

However, when a landscape gate is built on a river course, a landscape water surface and a landscape waterfall are formed, and meanwhile, due to the water level difference of the upstream and the downstream of the landscape gate (water retaining facilities such as a rubber dam, a steel gate dam, an air shield dam, a flap dam and a concrete overflow dam), great noise pollution is generated during water drainage, and particularly at night, the rest of nearby residents is seriously influenced.

At present, the mode of reducing the noise of the landscape gate is mainly based on the following two ideas, one of which is to reduce the noise by changing the water level difference between the upstream and the downstream of the landscape gate, if the gate is opened and the water is discharged at night, the mode can effectively reduce the noise, but the later stage needs to store water again, and under the condition of less water coming from the upstream, the water needs to spend longer time for storing water, which affects the water landscape effect in the daytime, and meanwhile, the water storage operation also easily causes the cutoff of the downstream river channel and affects the water ecology; and secondly, noise is reduced by improving the flow state of water flow, for example, a certain noise can be reduced by building an overflow dam at the edge of a landscape gate or adding curtain cloth on a landscape waterfall, but the reduction amplitude is limited, and the engineering reconstruction investment is large.

On the premise of not influencing the landscape effect presented by the landscape gate, the method expends the minimum manpower, material resources and financial resources to realize the good noise reduction effect, and becomes a difficult problem which needs to be broken through urgently in the technology.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a gate with a noise reduction function.

The gate with the noise reduction function comprises a plurality of gate blades, wherein each gate blade comprises a first gate plate positioned on the upstream side and a second gate plate positioned on the downstream side;

a water passing channel is arranged between the first gate plate and the second gate plate, and a water inlet end and a water outlet end which are communicated with the water passing channel are respectively arranged on the first gate plate and the second gate plate;

the first gate plate and/or the second gate plate are/is internally of a hollow structure.

Preferably, the interior of the first and/or second shutter plate is filled with sound attenuating material.

Preferably, the first and/or second shutter plates are internally coated with a sound dampening coating.

Preferably, the water passing channel is a pipeline or a buffer water tank.

Preferably, the cross section of the water inlet end is rectangular.

Preferably, the gate blade is provided with an opening and closing structure, the opening and closing mechanism comprises a gate valve and a driving device, the gate valve is connected with the water inlet end, and the driving device drives the gate valve to open or close.

Preferably, a gate valve opening sensor or a limit switch is arranged on the gate valve.

Preferably, a protective sleeve is sleeved outside the gate valve opening sensor or the limit switch.

Preferably, the driving device is an oil cylinder, and the oil cylinder and the gate valve are connected in a single-lifting-point or double-lifting-point mode.

Preferably, the gate blade is provided with an access hole, and the access hole is provided with a movable or detachable access cover.

Preferably, the water outlet end is communicated with river water through a water diversion device.

Preferably, the water diversion device is made of flexible materials.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the gate with the noise reduction function, the first gate plate and/or the second gate plate are/is internally of a hollow structure, and the structural design is mainly adopted because if the first gate plate and/or the second gate plate are/is of a single-layer non-hollow structure, when water in a river channel flows into a water channel and flows out of the water channel, larger noise interference is inevitably generated due to impact of the water flow.

2. According to the gate with the noise reduction function, the water passing channel can be designed into the buffer water tank, the impact of water flow can be effectively reduced through the buffer water tank, and the noise reduction effect is further improved while the water is guided.

3. According to the gate with the noise reduction function, the water inlet end can be designed into a square structure, the water inlet amount of the square structure water inlet end is improved compared with that of a round structure water inlet end with the same diameter and side length, and therefore the water inlet noise of the square structure water inlet end is obviously smaller than that of the round structure water inlet end under the condition that the upstream water flow is large.

4. The gate with the noise reduction function can guide water at the water outlet end into a river channel through the water guide devices such as cloth and the like, and can effectively reduce noise when the water outlet end has a fall with the horizontal plane of the river channel.

5. The gate with the noise reduction function provided by the invention can control the water inlet condition of the water inlet end through the design of the opening and closing mechanism, when the upstream water level reaches the preset threshold value, the opening and closing mechanism can be opened, so that the upstream water flows to the downstream through the water passage and the noise is reduced, and when the upstream water level does not reach the preset threshold value, the opening and closing mechanism can be closed to store water.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural diagram of a gate with a noise reduction function according to the present invention;

fig. 2 is a cross-sectional view taken along line a-a of fig. 1.

The figures show that:

1-a first gate plate;

2-a second gate plate;

3-a water passing channel;

4-water inlet end;

5-water outlet end;

6-a drive device;

7-a gate valve;

8-an opening and closing mechanism;

10-gate blade

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the invention.

It should be understood that all directional indicators (such as upper, lower, left, right, front, rear, bottom …) in this application are only used to explain the relative positional relationship between the components, the movement, etc. at a particular attitude (as shown in the drawings), and if the particular attitude changes, the directional indicator changes accordingly. Moreover, the descriptions in this application referring to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated.

As shown in fig. 1 and 2, the present invention provides a lock gate with noise reduction function, comprising a plurality of lock gate blades 10, each of the lock gate blades 10 comprising a first lock gate plate 1 on an upstream side and a second lock gate plate 2 on a downstream side; a water passing channel 3 is arranged between the first gate plate 1 and the second gate plate 2, and a water inlet end 4 and a water outlet end 5 which are communicated with the water passing channel 3 are respectively arranged on the first gate plate 1 and the second gate plate 2; the first and

second shutter plates

1, 2 are hollow shutter plates. When the gate is used, water flows into the water passage 3 arranged in the gate through the water inlet end 4 and then flows out of the water outlet end 5. In the process that water flows into the water inlet end 4 and flows out of the water outlet end 5, the hollow structures of the first gate plate 1 and the second gate plate 2 form a noise reduction cavity, and the noise generated by the water flow when flowing is effectively reduced due to the noise reduction cavity. In order to further improve the noise reduction effect, noise reduction materials such as noise reduction cotton can be filled in the first gate plate 1 and the second gate plate 2, or noise reduction coatings can be coated in the first gate plate and the second gate plate.

Further, the water passage 3 may be a pipe or a buffer tank. Preferably, the water passage 3 is designed as a buffer water tank. The buffer water tank is filled with more water, a water inlet and a water outlet are arranged on the buffer water tank, the water inlet is connected with a water inlet end 4, and the water outlet is connected with a water outlet end 5. When the gate is used, water flows into the buffering water tank from the water inlet end 4 of the first gate plate 1, and the buffering water tank releases the water flow through the water outlet end 5 of the second gate plate 2. Compare in pipeline design, the impact that the buffering basin can effectual reduction rivers further promotes the noise reduction effect when the water conservancy diversion.

Further, the cross section of the water inlet end 4 is rectangular, and preferably, the cross section is square. Compared with a circular water inlet end with the same diameter and side length, the square water inlet end has the advantages that the water inlet amount is improved to some extent, and therefore the water inlet noise of the square water inlet end is obviously smaller than that of the circular water inlet end under the condition that the upstream water flow is large. In addition, in order to avoid the falling water noise caused by the fall between the water outlet end 5 and the river surface, a water diversion device is arranged between the water outlet end 5 and the river, and the water diversion device can be made of flexible materials such as cloth, so that the water flow can slowly flow into the river along the flexible materials such as cloth after flowing out from the water outlet end 5, and the noise cannot be generated in the process.

Further, the gate blade 10 is provided with an opening and closing mechanism 8, the opening and closing mechanism 8 comprises a gate valve 7 and a driving device 6, and the driving device 6 can be an oil cylinder which is connected with the gate valve 7 through a single lifting point or a double lifting point. The gate valve 7 is connected with the water inlet end 4, and the driving device 6 drives the gate valve 7 to open or close. The gate valve 7 is provided with a gate valve opening sensor or a limit switch, and when the gate valve opening sensor is arranged, the gate valve opening sensor can acquire opening information of the gate valve 7. In addition, for avoiding electronic components such as gate valve opening sensor or limit switch to suffer damage in aqueous, establish water proof protective sheath at its overcoat. The design of mechanism 8 that opens and shuts makes the user can control the condition of intaking end 4, and when the upstream water level reached preset threshold value, the user can open mechanism 8 that opens and shuts, makes the upper reaches rivers flow toward low reaches and fall the noise via water channel 3, when the upstream water level did not reach preset threshold value, can close mechanism 8 that opens and shuts, impounds.

Furthermore, an access hole can be arranged at the corresponding position of each gate leaf 10, and a corresponding access hole cover is arranged on the access hole, so that a user can conveniently access the access hole.

While the embodiments of the present invention have been described, it is clear that various changes and modifications can be made by workers in the field without departing from the technical spirit of the present invention.

Claims

1. A gate with a noise reduction function is characterized by comprising a plurality of gate blades (10), wherein each gate blade (10) comprises a first gate plate (1) positioned on an upstream side and a second gate plate (2) positioned on a downstream side;

a water passing channel (3) is arranged between the first gate plate (1) and the second gate plate (2), and a water inlet end (4) and a water outlet end (5) which are communicated with the water passing channel (3) are respectively arranged on the first gate plate (1) and the second gate plate (2);

the first gate plate (1) and/or the second gate plate (2) are/is internally of a hollow structure.

2. The shutter with noise reduction function according to claim 1, characterized in that the inside of the first shutter plate (1) and/or the second shutter plate (2) is filled with sound deadening material.

3. The shutter with noise reduction function according to claim 1, characterized in that the inside of the first shutter plate (1) and/or the second shutter plate (2) is coated with a sound deadening coating.

4. The gate with the noise reduction function according to claim 1, wherein the water passing channel (3) is a pipe or a buffer water tank.

5. The gate with the noise reduction function according to claim 1, characterized in that the section of the water inlet end (4) is rectangular.

6. The gate with the noise reduction function as claimed in claim 1, wherein the gate blade (10) is provided with an opening and closing mechanism (8), the opening and closing mechanism (8) comprises a gate valve (7) and a driving device (6), the gate valve (7) is connected with the water inlet end (4), and the driving device (6) drives the gate valve (7) to open or close.

7. The gate with the noise reduction function according to claim 6, wherein the gate valve (7) is provided with a gate valve opening sensor or a limit switch.

8. The gate with the noise reduction function according to claim 7, wherein a protective sleeve is sleeved outside the gate valve opening sensor or the limit switch.

9. The gate with the noise reduction function as claimed in claim 6, wherein the driving device (6) is a cylinder, and the cylinder and the gate valve (7) are connected by a single lifting point or a double lifting point.

10. The gate with the noise reduction function as claimed in claim 1, wherein the gate blade (10) is provided with an access opening, and a movable or detachable access opening cover is arranged on the access opening.

11. The gate with the noise reduction function as claimed in claim 1, wherein the water outlet end (5) is communicated with river water through a water diversion device.

12. The gate with the noise reduction function according to claim 11, wherein the diversion device is a flexible material.