Energy dissipation and anti-scouring device for sea gate

Abstract

The present invention discloses an energy dissipation and anti-scour device for a sea gate, comprising: an energy dissipation mechanism arranged on the foundation at the water outlet of the sea gate for utilizing the energy of the water body for counter-dissipation; a power generation mechanism arranged at the water outlet of the sea gate for converting the kinetic energy of the water body into electrical energy; a compressed air generating mechanism, the compressed air generating mechanism is connected to the power generation mechanism and the power generation mechanism provides electrical energy to generate high-pressure compressed air; and an anti-scour block arranged on the foundation at the water outlet of the sea gate and located behind the energy dissipation mechanism and connected to the compressed air generating mechanism, the anti-scour block is used to eject the high-pressure compressed air generated by the compressed air generating mechanism upward to offset the residual kinetic energy of the water body. The present invention has no extra energy consumption, integrates energy dissipation and conversion, is green and environmentally friendly, has a high degree of automation, has low later maintenance costs, and is economical.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic structure protection devices, and in particular to an energy dissipation and anti-scouring device for a sea gate. Background Art

[0002] The southeastern coastal cities are affected by heavy rainfall such as typhoons during the flood season, and the pressure of urban flood control and drainage is relatively high. In order to ensure the safety of people's lives and property and reduce flood disasters, coastal cities often take advantage of the tidal drainage of sea gates, open the gates to discharge floodwaters when the tide level is low in the open sea, and reduce the water level of the city's inland rivers. For strong tidal estuary areas, due to the large tidal range in the open sea, the excessive flow rate of water during flood discharge can easily cause scouring under the gates, endangering the safety and stability of the sea gates and surrounding buildings.

[0003] In order to reduce scouring under the gate, some projects adopt the structure of multi-stage stilling pool or multi-stage stilling teeth. However, for the sea gate, especially the tidal river section, the foundation elevation of the wing walls on both sides of the stilling pool will be reduced, and the water pressure inside and outside the cofferdam will increase sharply during the construction period, which will increase the difficulty of construction and pose great safety hazards. Some projects also adopt the maintenance method of throwing stones into the anti-scouring groove, but this method requires huge investment and has high maintenance costs in the later stage. After the riprap scours and slides, it will have a serious impact on the upstream side of the sea, the protection tank and even the stability of the gate chamber.

[0004] For sea gates with high flood discharge velocity, reducing scouring under the gate and improving the safety and stability of the structure has become an urgent problem to be solved. Therefore, building an energy dissipation and anti-scouring device for sea gates that can be operated automatically, has low construction cost, and is safe and effective is of great practical significance for the safe and stable operation of sea gates. To this end, the applicant has conducted useful explorations and attempts and found a solution to the above problems. The technical solution to be introduced below was produced in this context. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an energy dissipation and anti-scour device for sea gates which can be automatically operated, has low construction cost, low subsequent maintenance cost, and is safe and effective in view of the deficiencies in the prior art.

[0006] The technical problem to be solved by the present invention can be achieved by adopting the following technical solutions:

[0007] An energy dissipation and anti-scouring device for a sea gate comprises:

[0008] An energy dissipation mechanism disposed on the foundation at the water outlet of the sea gate for utilizing water energy to offset and dissipate energy;

[0009] A power generation mechanism disposed at the discharge port of the sea gate for converting the kinetic energy of the water into electrical energy;

[0010] a compressed air generating mechanism, the compressed air generating mechanism being connected to the power generating mechanism and being provided with electric energy by the power generating mechanism to generate high-pressure compressed air; and

[0011] An anti-scour block is arranged on the foundation at the drain outlet of the sea gate, is located behind the energy dissipation mechanism and is connected to the compressed air generating mechanism, and is used to spray the high-pressure compressed air generated by the compressed air generating mechanism upward to offset the residual kinetic energy of the water body.

[0012] In a preferred embodiment of the present invention, the energy dissipation mechanism comprises:

[0013] Left and right support sleeves are fixedly arranged at intervals on the foundation at the water outlet of the sea gate;

[0014] Left and right springs respectively installed in the left and right support sleeves;

[0015] Left and right vertical rods, the lower ends of which are inserted into the left and right support sleeves and supported by the left and right springs, and the upper ends of which extend vertically upward;

[0016] A floating member, the two ends of which are respectively connected to the upper ends of the left and right vertical rods;

[0017] Left and right energy dissipation blade rotating shaft sleeves are provided on the outer circumferences of the left and right vertical rods and are located at the lower parts of the left and right vertical rods; and

[0018] A plurality of left and right energy dissipation blades are arranged on the left and right energy dissipation blade rotating shaft sleeves at circumferential intervals and rotate unidirectionally around the left and right energy dissipation blade rotating shaft sleeves.

[0019] In a preferred embodiment of the present invention, the number of the left and right energy dissipation blades is 4-8.

[0020] In a preferred embodiment of the present invention, the power generation mechanism comprises:

[0021] A rotating shaft with a horizontal axis disposed on the left and right vertical rods and located above the left and right energy dissipation blades;

[0022] A plurality of rotating blades arranged at circumferential intervals on the outer circumference of the rotating shaft; and

[0023] A generator, wherein the rotating shaft of the generator is connected to one end of the rotating shaft through a synchronous transmission belt, and the power output end of the generator is connected to the compressed air generating mechanism through a transmission wire.

[0024] In a preferred embodiment of the present invention, the number of the rotating blades is 4-8.

[0025] In a preferred embodiment of the present invention, the rotating blades are made of lightweight seawater corrosion-resistant material.

[0026] In a preferred embodiment of the present invention, the compressed air generating mechanism comprises:

[0027] A sealed shell, wherein a gas outlet is provided on a side of the sealed shell;

[0028] A blocking slider slidably disposed in the sealed housing for blocking the air outlet;

[0029] A crank arm linkage rod, one end of which passes through the top surface of the sealed shell and then extends into the sealed shell and is connected to the blocking slider, and the other end of which is connected to the left vertical rod or the right vertical rod. When the crank arm linkage rod moves upward following the left vertical rod or the right vertical rod, the crank arm linkage rod drives the blocking slider to move upward, thereby opening the air outlet of the sealed shell; and

[0030] An air compressor installed in the sealed casing and connected to the power generation mechanism for generating high-pressure compressed air.

[0031] In a preferred embodiment of the present invention, a jet chamber is formed in the anti-scour block, and an air inlet connected to the jet chamber is provided on its side. The air inlet of the anti-scour block is connected to the air outlet of the closed shell through an air hose, and a plurality of jet ports with openings facing upward and connected to the jet chamber are evenly spaced on the top surface of the anti-scour block.

[0032] In a preferred embodiment of the present invention, a plurality of anti-scour ridges are arranged at intervals along the length direction on the top surface of the anti-scour block, and the top surface elevation of each anti-scour ridge is higher than the top surface elevation of the anti-scour block.

[0033] In a preferred embodiment of the present invention, the cross-section of the anti-collision ridge is an arched or rectangular structure.

[0034] In a preferred embodiment of the present invention, the anti-scour block is made of soft material, which can automatically adjust according to the deformation of the foundation and fit closely to the foundation.

[0035] Due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0036] 1. The present invention does not consume any extra energy. The rotating blades are driven by the kinetic energy of the water body, which converts the kinetic energy of the water body into electrical energy, integrating energy dissipation and conversion into one, which is green and environmentally friendly.

[0037] 2. The left and right energy dissipation blades of the present invention rotate in one direction, using the energy of the water body to offset the energy dissipation, so that the kinetic energy of the water body is self-weakened;

[0038] 3. The present invention uses the water kinetic energy driving device to weaken the water kinetic energy, has a high degree of automation, and does not require additional operators;

[0039] 4. The present invention has a simple structure, and compared with the anti-scouring groove riprap backfilling scheme, the later maintenance cost is low and the economy is good;

[0040] 5. The present invention can adjust the size of the air outlet opening and the jet intensity through the floating member and its associated mechanism according to the water level after the gate is opened, so that the jet intensity is adapted to the kinetic energy of the water, and has a high degree of intelligence. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 It is a structural schematic diagram of the present invention.

[0043] Figure 2 It is a schematic diagram of the cooperation between the left and right vertical rods and the left and right supporting sleeves in the energy dissipation mechanism of the present invention.

[0044] Figure 3 It is a structural schematic diagram of the compressed air generating mechanism of the present invention.

[0045] Figure 4 It is a top view of the anti-scour block of the present invention. DETAILED DESCRIPTION

[0046] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0047] See also Figure 1 , the figure shows an energy dissipation and anti-scour device for a sea gate, including an energy dissipation mechanism 100, a power generation mechanism 200, a compressed air generation mechanism 300 and an anti-scour block 400.

[0048] The energy dissipation mechanism 100 is arranged on the foundation at the discharge port of the sea gate, and is used to utilize the energy of the water body to offset and dissipate energy. Specifically, the energy dissipation mechanism 100 includes left and right support sleeves 110a, 110b, left and right springs 120a, 120b, left and right vertical rods 130a, 130b, a floating member 140, left and right energy dissipation blade shaft sleeves 150a, 150b, and a plurality of left and right energy dissipation blades 160a, 160b. Figure 2Combined with Figure 1 The left and right support sleeves 110a and 110b are fixedly arranged at intervals on the foundation at the drain outlet of the sea gate, the left and right springs 120a and 120b are respectively installed in the left and right support sleeves 110a and 110b, the lower ends of the left and right vertical rods 130a and 130b are inserted into the left and right support sleeves 110a and 110b and supported by the left and right springs 120a and 120b, and the upper ends thereof extend vertically upward. The two ends of the floating member 140 are respectively connected to the upper ends of the left and right vertical rods 130a and 130b. The left and right energy dissipation blade shaft sleeves 150a and 150b are rotatably sleeved on the outer circumference of the left and right vertical rods 130a and 130b and are located at the lower part of the left and right vertical rods 130a and 130b. A plurality of left and right energy dissipation blades 160a, 160b are circumferentially spaced and arranged on the left and right energy dissipation blade rotating shaft sleeves 150a, 150b and rotate unidirectionally around the left and right energy dissipation blade rotating shaft sleeves 150a, 150b, and rotate from the inner side of the left and right vertical rods 130a, 130b to the outer side of the left and right vertical rods 130a, 130b. In the present embodiment, the left and right energy dissipation blades 160a, 160b are preferably 4-8 pieces, and are made of lightweight seawater corrosion-resistant material.

[0049] The power generation mechanism 200 is arranged at the discharge port of the sea gate, and is used to convert the kinetic energy of the water body into electrical energy. Specifically, the power generation mechanism 200 includes a rotating shaft 210, a plurality of rotating blades 220 and a generator 230. The horizontal axis of the rotating shaft 210 is arranged on the left and right vertical rods 130a, 130b and is located above the left and right energy dissipation blades 160a, 160b. A plurality of rotating blades 220 are arranged on the outer peripheral surface of the rotating shaft 210 at intervals in the circumferential direction. In this embodiment, the rotating blades are 4-8 pieces and are made of lightweight seawater corrosion-resistant materials. The rotating shaft of the generator 230 is connected to one end of the rotating shaft 210 through a synchronous transmission belt 240, and the power output end of the generator 230 is connected to the air compressor 340 of the compressed air generating mechanism 300 through a transmission wire 250 to provide electrical energy for the air compressor 340.

[0050] The compressed air generating mechanism 300 is connected to the power generating mechanism 200 and is provided with electric energy by the power generating mechanism 200 to generate high-pressure compressed air. Figure 3 Combined with Figure 1The compressed air generating mechanism 300 includes a sealed shell 310, a blocking slider 320, a crank arm linkage rod 330 and an air compressor 340. An air outlet 311 is provided on the side of the sealed shell 310. The blocking slider 320 is slidably disposed in the sealed shell 310, and is used to block the air outlet 311 of the sealed shell 310 in the initial position. One end of the crank arm linkage rod 330 passes through the top surface of the sealed shell 310 and then extends into the sealed shell 310 and is connected to the blocking slider 320, and the other end thereof is connected to the left vertical rod 130a or the right vertical rod 130b. When the crank arm linkage rod 330 moves upward following the left vertical rod 130a or the right vertical rod 130b, the crank arm linkage rod 330 drives the blocking slider 320 to move upward, thereby opening the air outlet 311 of the sealed shell 310. The air compressor 340 is installed in the sealed casing 310 and connected to the generator 230 of the power generation mechanism 200 , and is used to generate high-pressure compressed air.

[0051] The anti-scour block 400 is arranged on the foundation at the outlet of the sea gate and is located behind the energy dissipation mechanism 100 and connected to the compressed air generating mechanism 300. It is used to spray the high-pressure compressed air generated by the compressed air generating mechanism 300 upward to offset the residual kinetic energy of the water body. Specifically,

[0052] An air jet chamber (not shown) is formed in the anti-scour block 400, and an air inlet 410 connected to the air jet chamber is provided on its side. The air inlet 410 of the anti-scour block 400 is connected to the air outlet 311 of the closed shell 310 through an air hose 420. A plurality of air jets 430 with upward openings and connected to the air jet chamber are evenly spaced on the top surface of the anti-scour block 400. In this embodiment, the anti-scour block 400 is made of soft material, which can automatically adjust according to the deformation of the foundation and fit the foundation tightly.

[0053] A plurality of anti-scouring ridges 440 are arranged at intervals along the length direction on the top surface of the anti-scouring block 400, and the top surface elevation of each anti-scouring ridge 440 is higher than the top surface elevation of the anti-scouring block 400. In this embodiment, the cross section of the anti-scouring ridge 440 is an arched or rectangular structure to improve the aesthetics.

[0054] The working process of the energy dissipation and anti-scouring device for the sea gate of the present invention is as follows:

[0055] 1) When the sea gate is opened to release water, the water level below the sea gate gradually rises, and the floating member 140 moves vertically upward under the action of the water level, driving the left and right vertical rods 130a, 130b and their associated mechanisms to move upward, and the crank arm linkage rod 330 moves upward, which in turn drives the blocking slider 320 to move upward, so that the air outlet 311 of the sealed shell 310 is partially opened;

[0056] 2) After the gate is opened to release water, the kinetic energy of the water drives the rotating blades 220 to rotate, and the synchronous transmission belt 240 drives the generator 230 to work, converting the kinetic energy into electrical energy, which is transmitted to the air compressor 340 through the transmission wire 250, and the air compressor 340 operates normally;

[0057] 3) The high-pressure compressed gas generated by the air compressor 340 is transported to the anti-scour block 400 through the air outlet 311 of the closed shell 310 and the air hose 420, and is ejected from the air jet 430 to offset the residual kinetic energy of the water body and protect the foundation under the anti-scour block 400 from scour;

[0058] 4) After the gate is opened to release water, the inner water body between the left and right vertical rods 130a, 130b pushes the left and right energy dissipation blades 160a, 160b to rotate, and the left and right energy dissipation blades 160a, 160b can only rotate in one direction. The outer water body of the left and right vertical rods 130a, 130b presses the left and right energy dissipation blades 160a, 160b, hindering the rotation of the left and right energy dissipation blades 160a, 160b, and realizing counter-energy dissipation of the inner water body between the left and right vertical rods 130a, 130b; the outer water body of the left and right vertical rods 130a, 130b is restricted by the unidirectional rotation of the left and right energy dissipation blades 160a, 160b, and the kinetic energy of the water body is consumed.

[0059] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An energy dissipation and anti-scour device for a sea gate, characterized in that: include: An energy dissipation mechanism disposed on the foundation at the water outlet of the sea gate for utilizing water energy to offset and dissipate energy; A power generation mechanism disposed at the discharge port of the sea gate for converting the kinetic energy of the water into electrical energy; A compressed air generating mechanism, the compressed air generating mechanism is connected to the power generating mechanism and is provided with electric energy by the power generating mechanism to generate high-pressure compressed air; as well as An anti-scour block arranged on the foundation at the water outlet of the sea gate and located behind the energy dissipation mechanism and connected to the compressed air generating mechanism, the anti-scour block is used to spray the high-pressure compressed air generated by the compressed air generating mechanism upward to offset the residual kinetic energy of the water body; The energy dissipation mechanism comprises: Left and right support sleeves are fixedly arranged at intervals on the foundation at the water outlet of the sea gate; Left and right springs respectively installed in the left and right support sleeves; Left and right vertical rods, the lower ends of which are inserted into the left and right support sleeves and supported by the left and right springs, and the upper ends of which extend vertically upward; A floating member, the two ends of which are respectively connected to the upper ends of the left and right vertical rods; Left and right energy dissipation blade rotating shaft sleeves are provided on the outer circumferences of the left and right vertical rods and are located at the lower parts of the left and right vertical rods; and A plurality of left and right energy dissipation blades arranged at intervals in the circumferential direction on the left and right energy dissipation blade rotating shaft sleeves and rotating unidirectionally around the left and right energy dissipation blade rotating shaft sleeves; The power generation mechanism comprises: A rotating shaft with a horizontal axis disposed on the left and right vertical rods and located above the left and right energy dissipation blades; A plurality of rotating blades arranged at circumferential intervals on the outer circumference of the rotating shaft; and A generator, wherein the rotating shaft of the generator is connected to one end of the rotating shaft via a synchronous transmission belt, and the power output end of the generator is connected to the compressed air generating mechanism via a transmission wire; The compressed air generating mechanism comprises: A closed shell, wherein a gas outlet is provided on a side of the closed shell; A blocking slider slidably disposed in the sealed housing for blocking the air outlet; A crank arm linkage rod, one end of which passes through the top surface of the sealed shell and then extends into the sealed shell and is connected to the blocking slider, and the other end of which is connected to the left vertical rod or the right vertical rod. When the crank arm linkage rod moves upward following the left vertical rod or the right vertical rod, the crank arm linkage rod drives the blocking slider to move upward, thereby opening the air outlet of the sealed shell; and An air compressor installed in the sealed housing and connected to the power generation mechanism for generating high-pressure compressed air; The anti-scour block is formed with an air jet chamber, and a gas inlet connected to the air jet chamber is provided on its side. The gas inlet of the anti-scour block is connected to the gas outlet of the closed shell through a gas hose. A plurality of air jets with openings facing upward and connected to the air jet chamber are evenly spaced on the top surface of the anti-scour block. The working process of the energy dissipation and anti-scouring device for the sea gate is as follows: 1) When the sea gate is opened to release water, the water level below the sea gate gradually rises, and the floating member moves vertically upward under the action of the water level, driving the left and right vertical rods and their associated mechanisms to move upward, and the crank arm linkage rod moves upward, which in turn drives the blocking slider to move upward, so that the air outlet of the closed shell is partially opened; 2) After the gate is opened to release water, the kinetic energy of the water drives the rotating blades to rotate, and the synchronous transmission belt drives the generator to work, converting the kinetic energy into electrical energy. The electrical energy is transmitted to the air compressor through the transmission wire, and the air compressor operates normally; 3) The high-pressure compressed gas generated by the air compressor is transported to the anti-scour block through the air outlet of the closed shell and the air hose, and is ejected from the air jet port to offset the residual kinetic energy of the water body and protect the foundation under the anti-scour block from scour; 4) After the gate is opened to release water, the inner water between the left and right vertical rods pushes the left and right energy dissipation blades to rotate. The left and right energy dissipation blades can only rotate in one direction. The outer water of the left and right vertical rods presses the left and right energy dissipation blades, hindering the rotation of the left and right energy dissipation blades, and realizing counter-energy dissipation for the inner water between the left and right vertical rods; the outer water of the left and right vertical rods is restricted by the unidirectional rotation of the left and right energy dissipation blades, and the kinetic energy of the water is consumed.

2. The energy dissipation and anti-scouring device for sea gate according to claim 1, characterized in that: The number of the left and right energy dissipation blades is 4 to 8.

3. The energy dissipation and anti-scouring device for sea gate according to claim 1, characterized in that: The number of the rotating blades is 4 to 8.

4. The energy dissipation and anti-scouring device for a sea gate according to claim 1, characterized in that: The rotating blades are made of lightweight seawater corrosion-resistant material.

5. The energy dissipation and anti-scouring device for sea gate according to claim 1, characterized in that: A plurality of anti-scour ridges are arranged at intervals along the length direction on the top surface of the anti-scour block, and the top surface elevation of each anti-scour ridge is higher than the top surface elevation of the anti-scour block.

6. The energy dissipation and anti-scouring device for sea gate according to claim 5, characterized in that: The cross section of the anti-collision ridge is an arched or rectangular structure.

7. The energy dissipation and anti-scouring device for a sea gate according to claim 1, characterized in that: The anti-scour block is made of soft material and can be automatically adjusted according to the deformation of the foundation to fit closely to the foundation.

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