Flood discharge gate with flow dividing and impact resisting functions

Abstract

The flood discharge gate comprises a flood discharge gate body, a gate plate is arranged on the inner side of one end of the flood discharge gate body, a flood discharge gate body is arranged in the gate plate, and a flood discharge outlet is formed in the end, away from the flood discharge gate body, of the flood discharge gate body. A flow dividing device is arranged at the top of the flood discharge outlet, a plurality of sets of flow dividing plates are arranged in the flow dividing device, a flood discharge pressure-resistant plate is connected to the side, close to the flow dividing device, of the flood discharge gate body, and a flood discharge inlet bin is arranged between the flood discharge gate and the flood discharge pressure-resistant plate. A flood discharge energy dissipation bin is arranged between the flood discharge pressure-resistant plate and the flow dividing device; according to the utility model, the resistance when floods flow through is increased through multiple groups of energy dissipation and diversion structures, and the impact force in the floods is mutually counteracted through mutual collision among the floods, so that the water pressure and speed of the floods are reduced, and the impact of the floods on the gate body and the downflow flood discharge area is further reduced.

Description

Technical Field

[0001] The utility model relates to the field of flood discharge gates, and more specifically, to a flood discharge gate with diversion and impact resistance. Background Art

[0002] The flood discharge gate is a low-head discharge structure that uses gates to block water. It consists of a gate chamber and upstream and downstream connecting sections. The main function of the upstream connecting section is to guide the water flow into the gate evenly; the main function of the downstream connecting section is to dissipate energy and prevent impact, and guide the water flow to be safely discharged into the downstream river.

[0003] After searching, the existing patent (application number: CN202120494601.8) discloses a flood discharge gate, including a bottom wall, a supporting wall relatively fixedly arranged above the bottom wall, a connecting wall fixedly connected between the supporting walls, a distance between the bottom end of the connecting wall and the bottom wall, a gate body is arranged between the opposing supporting walls, a stirring paddle is arranged at the bottom end of the gate body on the side away from the connecting wall, and a first driving member for driving the stirring paddle to rotate is arranged at the bottom end of the stirring paddle. The present application has the effect of cleaning the sand, gravel and soil located near the gate position of the reservoir when the gate of the flood control gate is opened, so that the gate can be opened normally. In the process of realizing the present utility model, the inventor found that the prior art has the following problems:

[0004] Existing floodgates do not have diversion and impact resistance structures. When discharging floodwaters in severe floods, they may not be able to effectively reduce the impact of the water flow. In the long run, this may cause significant damage to the floodgates, leading to major safety accidents and economic losses.

[0005] Therefore, in order to solve the above problems, a flood discharge gate with diversion and impact resistance is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a flood discharge gate with diversion and impact resistance to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a flood discharge gate with diversion and impact resistance, comprising a flood discharge gate body, a gate plate provided on the inner side of one end of the flood discharge gate body, a flood discharge gate provided inside the gate plate, a flood discharge outlet provided at one end of the flood discharge gate body away from the flood discharge gate, a diversion device provided on the top of the flood discharge outlet, and a plurality of diversion plates provided inside the diversion device;

[0008] A flood discharge pressure-resistant plate is connected to the side of the flood discharge gate body close to the diversion device, and multiple groups of overflow ports are arranged in the flood discharge pressure-resistant plate. A flood discharge inlet bin is arranged between the flood discharge gate and the flood discharge pressure-resistant plate, and a flood discharge energy dissipation bin is arranged between the flood discharge pressure-resistant plate and the diversion device.

[0009] Preferably, the height of the overflow port is greater than the highest point of the diversion device, and a No. 1 weir plate is provided at the bottom of one side of the overflow port close to the flood discharge gate.

[0010] Preferably, the overflow port is in a trumpet-shaped shape, and the aperture of the overflow port on the side close to the flood discharge gate is larger than the aperture of the side close to the flood discharge energy dissipation chamber.

[0011] Preferably, the diverter device is a hollow trapezoidal body, and the height of the diverter device close to the flood discharge and energy dissipation chamber is lower than the height of the diverter device close to the flood discharge outlet.

[0012] Preferably, a No. 2 weir plate is provided between multiple groups of diversion plates, multiple groups of diversion plates are symmetrical in pairs, and two adjacent groups of diversion plates are inclined in different directions, and the No. 2 weir plate is provided on the side of the diversion device close to the flood discharge and energy dissipation bin.

[0013] The technical effects and advantages of this utility model are:

[0014] 1. Compared with the existing technology, this flood discharge gate with diversion and impact resistance has the function of reducing water flow speed and reducing the impact of water flow on the main body of the flood discharge gate. The flood flow consumes kinetic energy in the rising process and completes the first energy dissipation when entering the overflow port. The diversion reduces the impact of the flood on the main body of the flood discharge gate, and the No. 1 weir plate is used to increase the resistance of water flow through the overflow port, thereby further reducing the speed of the water flow and the impact force of the water flow. The shape of the trumpet mouth of the overflow port can slow down the water flow speed, effectively reduce the impact of the water flow, and thus reduce the impact damage to the downstream.

[0015] 2. Compared with the existing technology, this flood discharge gate with diversion and impact resistance has the water flowing out of the overflow port flowing downward in a parabolic shape, and part of the flood enters the flood discharge and energy dissipation bin, while part of the turbulent flood rushes to the top of the diversion device and rebounds back in the diversion device. The returned flood rushes against the falling flood and the flood flowing to the diversion device in the flood discharge and energy dissipation bin, and the energy of the flood offsets each other during the collision, thereby further completing the energy dissipation of the flood.

[0016] 3. Compared with the existing technology, this flood discharge gate with diversion and impact resistance, the flood flowing into the diversion device first passes through the No. 2 weir flow plate, and the No. 2 weir flow plate increases the resistance of the flood flow to slow down the water flow and dissipate energy. The flood is diverted under the action of multiple sets of diversion plates, thereby reducing the water pressure when discharged from the flood discharge outlet, and then reducing the impact force of the water when it flows to the lower oil, so that the impact force of the flood on the downstream flood discharge area is reduced, and there is also a certain height difference between the flood discharge outlet and the flood discharge area below, completing another water jump energy dissipation during the falling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0018] Figure 2 It is a schematic structural diagram of the overall side section of the utility model.

[0019] Figure 3 It is a schematic structural diagram of the utility model as a whole from a top view.

[0020] Figure 4 It is a structural schematic diagram of the side section of the flood discharge and pressure-resistant plate of the utility model.

[0021] The accompanying drawings are marked as follows: 1. Flood discharge gate body; 2. Flood discharge gate; 3. Flood discharge pressure plate; 4. Flood discharge energy dissipation chamber; 5. Flood discharge outlet; 6. Diversion device; 7. Flood discharge inlet chamber; 11. Gate; 31. Overflow; 311. Weir plate No. 1; 61. Diversion plate; 62. Weir plate No. 2. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] As attached Figures 1 to 2 The flood gate shown in the figure has diversion and impact resistance, including a flood gate body 1, a gate plate 11 is provided on the inner side of one end of the flood gate body 1, and a flood gate 2 is provided inside the gate plate 11. A flood discharge outlet 5 is provided at the end of the flood gate body 1 away from the flood gate 2, and a diversion device 6 is provided on the top of the flood discharge outlet 5. A plurality of diversion plates 61 are provided in the diversion device 6.

[0025] A flood discharge pressure-resistant plate 3 is connected to the side of the flood discharge gate body 1 close to the diversion device 6, and multiple groups of overflow ports 31 are arranged in the flood discharge pressure-resistant plate 3. A flood discharge inlet bin 7 is arranged between the flood discharge gate 2 and the flood discharge pressure-resistant plate 3, and a flood discharge energy dissipation bin 4 is arranged between the flood discharge pressure-resistant plate 3 and the diversion device 6.

[0026] Among them: the flood gate body 1 is opened and closed by raising and lowering the flood gate 2 on the gate plate 11. The flood flows between the flood gate 2 and the gate plate 11, and first enters the flood discharge inlet bin 7 during the flow process, and rises upward in the flood discharge inlet bin 7. When it rises to the overflow port 31 of the flood discharge pressure-resistant plate 3, it is discharged from the overflow port 31 to the flood discharge energy dissipation bin 4, and completes hydraulic jump energy dissipation in the flood discharge inlet bin 7, and then completes diversion through the multi-group diversion plates 61 in the diversion device 6, and the diverted water flow flows out from the flood discharge outlet 5, and the flood discharge outlet 5 and the flood discharge area below also have a certain height difference, and completes hydraulic jump energy dissipation again during the falling process.

[0027] Example 2

[0028] Based on Example 1, the solution in Example 1 is further detailed in combination with the following specific working methods. Figures 1 to 4 As shown, see the following description for details:

[0029] As a preferred embodiment, the height of the overflow port 31 is greater than the highest point of the diversion device 6, and a No. 1 weir plate 311 is provided at the bottom of the overflow port 31 close to the flood discharge gate 2; further, in the process of the flood rising upward in the flood discharge inlet bin 7, the flood completes the first energy dissipation through the kinetic energy consumed in the rising process, and completes the first diversion when entering the overflow port 31, and reduces the impact of the flood on the flood discharge gate body 1 through diversion, and increases the resistance of the water flowing through the overflow port 31 through the No. 1 weir plate 311, thereby further reducing the speed of the water flow and reducing the impact force of the water flow.

[0030] As a preferred embodiment, the overflow port 31 is in the shape of a bell, and the aperture of the overflow port 31 on the side close to the flood discharge gate 2 is larger than the aperture on the side close to the flood discharge energy dissipation chamber 4; further, the bell-mouth shape of the overflow port 31 can slow down the water flow speed, effectively reduce the impact of the water flow, and thus reduce the impact damage to the downstream.

[0031] As a preferred embodiment, the diverter device 6 is a hollow trapezoidal body, and the height of the diverter device 6 close to the flood discharge and energy dissipation chamber 4 is lower than the height of the side close to the flood discharge outlet 5; further, the water flowing out from the overflow port 31 flows downward in a parabolic shape, and part of the flood enters the flood discharge and energy dissipation chamber 4, while part of the turbulent flood rushes to the top of the diverter device 6, and rebounds back at the diverter device 6, and the returned flood rushes towards the falling flood and the flood flowing to the diverter device 6 in the flood discharge and energy dissipation chamber 4, and the energy of the flood cancels each other out during the collision, thereby further completing the energy dissipation of the flood.

[0032] As a preferred embodiment, a No. 2 weir plate 62 is provided between the multiple groups of diversion plates 61, the multiple groups of diversion plates 61 are symmetrical in pairs, and the two groups of adjacent diversion plates 61 are inclined in different directions, and the No. 2 weir plate 62 is provided on the side of the diversion device 6 close to the flood discharge and energy dissipation chamber 4; further, the flood flowing to the diversion device 6 first passes through the No. 2 weir plate 62, and the No. 2 weir plate 62 increases the resistance of the flood flow to slow down the water flow and dissipate energy, and the flood is diverted under the action of the multiple groups of diversion plates 61, thereby reducing the water pressure when discharged from the flood discharge outlet 5, and then reducing the impact force of the water when it flows to the lower oil, so that the impact force of the flood on the downstream flood discharge area is reduced.

[0033] The working process of the utility model is as follows: first, the flood discharge gate body 1 is opened and closed by lifting the flood discharge gate 2 on the gate plate 11. During the flood discharge work, the flood flows between the flood discharge gate 2 and the gate plate 11, and in the process of flow, first enters the flood discharge inlet bin 7, and rises upward in the flood discharge inlet bin 7. When it rises to the overflow port 31 of the flood discharge pressure-resistant plate 3, it is discharged from the overflow port 31 to the flood discharge energy dissipation bin 4, and completes the hydraulic jump energy dissipation in the flood discharge inlet bin 7, and then completes the diversion through the multi-group diversion plates 61 in the diversion device 6, and the diverted water flows out from the flood discharge outlet 5;

[0034] In the process of the flood rising upward in the flood discharge inlet bin 7, the flood completes the first energy dissipation through the kinetic energy consumed in the rising process, and completes the first diversion when entering the overflow port 31. The diversion reduces the impact of the flood on the flood discharge gate body 1, and the No. 1 weir plate 311 is used to increase the resistance of the water flowing through the overflow port 31, thereby further reducing the speed of the water flow and the impact force of the water flow. The bell-shaped shape of the overflow port 31 can slow down the water flow speed, effectively reduce the impact of the water flow, and thus reduce the impact damage to the downstream.

[0035] The water flowing out of the overflow port 31 flows downward in a parabolic shape, and part of the flood flows into the flood discharge and energy dissipation chamber 4, while part of the turbulent flood flows toward the top of the diversion device 6 and rebounds back at the diversion device 6. The returned flood flows against the falling flood and the flood flowing into the diversion device 6 in the flood discharge and energy dissipation chamber 4, and the energy of the flood cancels each other during the collision, thereby further completing the energy dissipation of the flood.

[0036] The flood flowing to the diversion device 6 first passes through the No. 2 weir plate 62, and the No. 2 weir plate 62 increases the resistance of the flood flow to slow down the water flow and dissipate energy. The flood is diverted under the action of the multi-group diversion plates 61, thereby reducing the water pressure when discharged from the flood outlet 5, and then reducing the impact force of the water when it flows to the lower oil, so that the impact force of the flood on the downstream flood discharge area is reduced, and the flood outlet 5 and the flood discharge area below also have a certain height difference, and another water jump energy dissipation is completed during the falling process. The above is the working principle of this flood discharge gate with diversion and impact resistance.

[0037] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flood discharge gate with diversion and impact resistance, comprising a flood discharge gate body (1), characterized in that: A gate plate (11) is provided on the inner side of one end of the flood discharge gate body (1), and a flood discharge gate (2) is provided inside the gate plate (11); a flood discharge outlet (5) is provided at one end of the flood discharge gate body (1) away from the flood discharge gate (2), and a diversion device (6) is provided on the top of the flood discharge outlet (5); and a plurality of diversion plates (61) are provided inside the diversion device (6); A flood discharge pressure-resistant plate (3) is connected to a side of the flood discharge gate body (1) close to the diversion device (6), and a plurality of overflow ports (31) are provided in the flood discharge pressure-resistant plate (3). A flood discharge inlet bin (7) is provided between the flood discharge gate (2) and the flood discharge pressure-resistant plate (3), and a flood discharge energy dissipation bin (4) is provided between the flood discharge pressure-resistant plate (3) and the diversion device (6).

2. The flood discharge gate with diversion and impact resistance according to claim 1, characterized in that: The height of the overflow port (31) is greater than the highest point of the diversion device (6), and a first weir plate (311) is provided at the bottom of one side of the overflow port (31) close to the flood discharge gate (2).

3. The flood discharge gate with diversion and impact resistance according to claim 2, characterized in that: The overflow port (31) is in a trumpet-shaped shape, and the aperture of the overflow port (31) on the side close to the flood discharge gate (2) is larger than the aperture of the side close to the flood discharge energy dissipation chamber (4).

4. The flood discharge gate with diversion and impact resistance according to claim 1, characterized in that: The diverter device (6) is a hollow trapezoidal body, and the height of the diverter device (6) close to the flood discharge and energy dissipation chamber (4) is lower than the height of the side close to the flood discharge outlet (5).

5. The flood discharge gate with diversion and impact resistance according to claim 1, characterized in that: A second weir plate (62) is provided between each of the plurality of groups of diverter plates (61), the plurality of groups of diverter plates (61) are symmetrical with each other, and two adjacent groups of diverter plates (61) are inclined in different directions, and the second weir plate (62) is provided on a side of the diverter device (6) close to the flood discharge and energy dissipation chamber (4).

Images