A honeycomb assembled one-way flow salt water flap device

Abstract

This invention relates to the field of river salinity control technology, and in particular provides a honeycomb-assembled unidirectional flow salinity control flap gate device. This honeycomb-assembled unidirectional flow salinity control flap gate device includes a track mounting base, a rigid track, a lateral traction power device, and multiple honeycomb modules that can be assembled into unidirectional flow salinity control flap gate devices. Each unidirectional flow salinity control flap gate device includes two vertical baffle assemblies, two horizontal baffle assemblies, an auxiliary flow support assembly, and two flap gate assemblies. When not in use, the unidirectional flow salinity control flap gate devices can be disassembled and removed sequentially using the rigid track and lateral traction power device. Furthermore, the device can be designed to suit the width of the river channel and the height of the salinity wedge, etc. It features convenient design and assembly, strong adaptability, reusability, economy, and convenience, and does not alter the original river topography, nor does it significantly obstruct the ebb tide flow during the dry season.

Description

Technical Field

[0001] This invention relates to the field of river salinity suppression technology, and in particular provides a honeycomb-assembled unidirectional flow salinity suppression flap gate device. Background Technology

[0002] The tidal estuary is a mixing zone of saline and freshwater under the interaction of runoff and tidal forces. During high tide, the current exhibits distinct density current characteristics, with brackish and fresh water moving and mixing repeatedly under the influence of runoff, tidal current, and wind. During the dry season, when upstream flow is consistently low, under tidal conditions, a saline wedge submerges along the riverbed and continues to move upstream during high tide. This results in excessive salinity at upstream water plant intakes during the dry season, preventing water plants along the river from obtaining freshwater and impacting the city's water supply security.

[0003] Current technology generally uses wedge-shaped submerged dams on the riverbed to effectively suppress the intensity and distance of saltwater intrusion. However, as permanent structures, wedge-shaped submerged dams can affect the dynamic conditions of flood discharge and low tide in the river channel, making it difficult to implement permanent wedge-shaped submerged dam saltwater suppression projects. Therefore, there is an urgent need for a unidirectional flow suppression device that can be flexibly disassembled, can be adapted to the original topography of the river channel, and will not obstruct the low tide flow during the dry season. Summary of the Invention

[0004] Therefore, it is necessary to provide a honeycomb-assembled unidirectional flow damping gate device to solve at least one of the technical problems in the background art.

[0005] A honeycomb-type modular unidirectional flow saltwater suppression gate device includes a track mounting base, a rigid track, a lateral traction power unit, and multiple honeycomb modular unidirectional flow saltwater suppression gate devices that can be assembled. The track mounting base is recessed into the bottom surface of the installation channel along the width of the channel, and is perpendicular to the channel's central axis. The rigid track is fixedly installed in the track mounting base. The lateral traction power unit is located on both sides of the riverbank, opposite to the rigid track. The multiple unidirectional flow saltwater suppression gate devices are powered by the lateral traction power unit. The device is fixed in a rigid track and multiple unidirectional flow anti-saltage flapping devices are equidistantly spaced along the length of the rigid track or vertically, forming a chain structure in the installation channel. Multiple fixing devices are installed in the rigid track, corresponding to the multiple unidirectional flow anti-saltage flapping devices. Each fixing device includes two protrusions, which are equidistantly spaced along the length of the rigid track. Each protrusion has a first mounting groove recessed in its center and an inclined drainage surface recessed around its periphery.

[0006] As a further improvement of the present invention, each unidirectional flow suppression flapping device includes two vertical baffle assemblies, two horizontal baffle assemblies, an auxiliary flow support assembly, and two flapping gate assemblies. The two vertical baffle assemblies are respectively inserted into two first mounting grooves and fixedly installed in two bosses. The top and middle of the end wall of each vertical baffle assembly are respectively provided with a second mounting groove. The two ends of each horizontal baffle assembly are respectively inserted into the corresponding two second mounting grooves and installed on the two vertical baffle assemblies. The two horizontal baffle assemblies are horizontally arranged. The auxiliary flow support assembly is installed in the two vertical baffle assemblies and the horizontal baffle assemblies arranged in the middle of the vertical baffle assemblies. The two flapping gate assemblies are respectively hingedly installed on the side of the bottom surface of the two horizontal baffle assemblies adjacent to the upstream side.

[0007] As a further improvement of the present invention, each vertical baffle assembly includes a vertical support tube and a sleeve. Two second mounting grooves are respectively formed at the top and middle of the end wall of the vertical support tube. A hollow cavity is formed by a recess on the top surface of the vertical support tube. Sealing grooves are respectively formed by a recess on the middle and top of the side wall of the hollow cavity adjacent to the upstream side. A third mounting groove is formed by a recess through the middle of the two sealing grooves. The two third mounting grooves are respectively horizontally arranged with the two second mounting grooves. An inclined surface is formed by a recess on the outer side of the two third mounting grooves. A flexible block is provided in each third mounting groove. An inclined mounting surface is formed by a recess on the outer end of the flexible block adjacent to the upstream side. An inclined water baffle is provided on the mounting surface. A sealing plate is provided in the middle of the side wall of the sleeve adjacent to the upstream side. The top surface of the sleeve is fixedly installed on the bottom surface of the vertical support tube. The sleeve passes through the first mounting groove and is fixedly installed in the boss.

[0008] As a further improvement of the present invention, each transverse baffle assembly includes a transverse support column and an auxiliary diversion plate. The two ends of the transverse support column are respectively fixedly installed on the vertical support pipe through two second mounting slots. An inclined platform is formed by protruding from the middle of the top surface of the transverse support column away from the upstream side. One side wall of the auxiliary diversion plate is fixedly installed in the side wall of the transverse support column adjacent to the upstream side.

[0009] As a further improvement of the present invention, the top surface of the auxiliary diversion plate is provided with a plurality of inclined water diversion channels at equal intervals on the upstream side, and one end wall of each of the plurality of water diversion channels is provided with an inclined groove.

[0010] As a further improvement of the present invention, the auxiliary flow support assembly includes two auxiliary support columns and an auxiliary flow fixing element. The auxiliary support columns are made of flexible material, and each auxiliary support column has an arc-shaped cross-section. The tip of the arc of the auxiliary support column is located near the upstream side. The two auxiliary support columns are respectively fixedly installed on the inner wall of the two vertical support pipes away from the upstream side. The two auxiliary support columns are horizontally arranged, and one auxiliary support column is located between the two auxiliary support columns, while the other auxiliary support column is located between the auxiliary support column and the bottom surface of the installation channel. The auxiliary flow fixing element is rotatably installed on the top surface of the transverse baffle assembly in the middle of the vertical baffle assembly near the upstream side by a torsion spring.

[0011] As a further improvement of the present invention, the auxiliary flow fixing element includes an inclined plate and a vertical plate. The bottom end of the inclined plate is rotatably mounted on the side of the top surface of the horizontal baffle assembly in the middle of the vertical baffle assembly near the upstream side via a torsion spring. Rubber blocks are protruding at both ends of the side wall away from the upstream side of the inclined plate. The bottom surface of the rubber blocks abuts against the top surface of the inclined platform. A stabilizing groove is formed in the middle of the side wall near the upstream side of the inclined plate. The top end of the inclined plate is fixedly connected to the bottom surface of the vertical plate. An inclined striking surface is formed in the recessed side of the top surface of the vertical plate near the upstream side.

[0012] As a further improvement of the present invention, each flap gate assembly includes a rigid flap gate and two auxiliary flow rotating gates. The rigid flap gate is hinged to the bottom surface of the transverse support column near the upstream side, and the bottom surface of the rigid flap gate abuts against the bottom surface of the stabilizing groove. The bottom of the side wall of the rigid flap gate away from the upstream side abuts against the side wall of the stabilizing groove. The middle part of the side wall of the rigid flap gate away from the upstream side abuts against the side wall of the auxiliary support column. An inclined guide surface is recessed at the bottom of the side wall of the rigid flap gate near the upstream side. The two auxiliary flow rotating gates are rotatably mounted on both ends of the rigid flap gate by torsion springs.

[0013] As a further improvement of the present invention, each auxiliary flow rotating gate has an arc-shaped tube protruding from the bottom of the side wall away from the upstream side towards the center of the rigid flap gate. A push block is provided inside the arc-shaped tube, and the bottom surface of the push block abuts against the top surface of the inclined platform. An inclined push surface is recessed inside the top surface of the push block, and the push surface abuts against the side wall away from the upstream side of the inclined plate.

[0014] As a further improvement of the present invention, the design elevation of the unidirectional flow salinity suppression flap gate device that can be assembled using a formula can be calculated using historical data on the water level, flow rate, and saline wedge height during historical dry seasons in the installed river channel. The formula is as follows:

[0015]

[0016] In the formula, H(a,b,k) represents the design elevation of the unidirectional flow anti-salinity gate device that can be assembled using cellular modules, N represents the coefficient of the water level and flow rate data during the dry season in the tidal section, and a i This represents the water level data for the i-th dry season in the tidal river section, bi This represents the flow data for the i-th dry season in the tidal river section. This is represented as a reference water level for the tidal section. Let x represent the reference flow rate for the tidal section, y represent the critical water level for the tidal section, and k represent the critical flow rate for the tidal section. i This represents the height of the bottom saline wedge in the i-th dry season of the tidal river segment. This represents the abnormal adjustment value of the safety experience data for the unidirectional flow salinity suppression flap gate device in tidal river sections.

[0017] Operators can determine the number of unidirectional flow saltwater suppression flapping devices to be vertically and equidistantly installed based on the design elevation calculated by the formula. Then, a sleeve is inserted into the top of the hollow cavity, so that the sealing plate of the sleeve is installed in the sealing groove, and the flexible block abuts against the side wall of the sealing plate, so that multiple unidirectional flow saltwater suppression flapping devices can be vertically installed. Then, by measuring the width of the installation channel, multiple unidirectional flow saltwater suppression flapping devices are designed to be equidistantly installed along the length of the rigid track, thereby realizing the flexible splicing operation of multiple unidirectional flow saltwater suppression flapping devices and realizing the flexible customization of unidirectional flow saltwater suppression flapping devices according to the geometry of the installation channel.

[0018] Furthermore, the rigid flap gates in multiple unidirectional flow salinity suppression flap gate devices are made of a new type of rigid material that is low-density, high-strength, corrosion-resistant, and lightweight. This makes it easier and more convenient to install and remove the rigid flap gates. At the same time, they can be flexibly modified and customized according to the river channel where they are installed, and can ensure long-term operation on the seabed, thus extending the service life of the device. Because the rigid flap gates are relatively thin, they can be opened quickly when the salinity tide rises, and the impact force and the inertia of the rigid flap gates themselves are smaller. This reduces the force required for the vertical baffle assembly and the horizontal baffle assembly, greatly extending the service life of the device.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. The rigid flap gate in this invention is made of a new type of rigid material that is low-density, high-strength, corrosion-resistant, and lightweight. The design elevation of the unidirectional flow saltwater suppression flap gate device, which can be assembled using honeycomb modules, can be determined according to the formula. This allows for flexible customization of the unidirectional flow saltwater suppression flap gate device based on the geometric dimensions of the river channel. Furthermore, multiple unidirectional flow saltwater suppression flap gate devices can be assembled in a modular manner, making the invention stable, strong, and corrosion-resistant.

[0021] 2. This invention is applicable to periods of significant saltwater intrusion during the dry season. When not in use, the unidirectional flow saltwater suppression gate device can be disassembled and removed sequentially using rigid rails and lateral traction power equipment. Furthermore, the unidirectional flow saltwater suppression gate device can be designed to suit the width of the river channel and the height of the saltwater wedge, etc. It features convenient design and assembly, strong adaptability, and advantages such as reusability, economy, and convenience.

[0022] 3. During low tide, the auxiliary flow fixing element, in conjunction with the flap gate assembly, does not affect the river's flood discharge and drainage functions, does not alter the original river topography, and does not significantly obstruct the low tide flow during the dry season. Simultaneously, it effectively suppresses the intensity and distance of saltwater intrusion during the dry season in tidal sections, enhancing the freshwater intake guarantee rate, reliability, and stability of upstream and downstream tidal sections during the dry season.

[0023] 4. During high tide, the unidirectional flow saltwater suppression flapping device can also utilize the cooperation of vertical and horizontal baffle components to generate backflow and eddies at the vertical connection points of multiple unidirectional flow saltwater suppression flapping devices. This creates a buffer zone at the connection points for the saltwater flow, dispersing the impact force of the tidal surge, reducing damage to the system and components, improving the system's service life and maintenance effectiveness, and making the vertical connection points of multiple unidirectional flow saltwater suppression flapping devices more stable.

[0024] 5. After installation, this invention does not affect the flood discharge and drainage function of the river channel, does not change the original topography of the river channel, and will not significantly obstruct the ebb tide flow during the dry season. During high tide, the saline water flow is blocked by the unidirectional flow saline-inhibiting flap gate device at the bottom of the river channel, which weakens the upstream intensity of the saline tide, reduces the erosion and mixing of saline water with fresh water, and protects the ecological environment and the living environment of residents. At the same time, the deformation of the lateral support column mitigates and buffers the impact of the saline water flow, reduces damage to components such as baffles and flap gates, and improves the service life and stability of the protective facilities. Furthermore, by guiding the saline water flow downstream to the lateral baffle assembly and then flowing back through the water diversion channel, the impact of the subsequent tidal surge is effectively reduced, the workload of the saline-inhibiting flap gate device is reduced, and the moisture-proof effect and the reliability of the facilities are improved. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a structure according to an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram of another embodiment of the present invention.

[0027] Figure 3 This is a schematic diagram of another embodiment of the present invention.

[0028] Figure 4 This is a three-dimensional schematic diagram of a unidirectional flow salt suppression flapping device according to an embodiment of the present invention.

[0029] Figure 5 This is a three-dimensional schematic diagram of a unidirectional flow salt suppression flapping device according to another embodiment of the present invention.

[0030] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0031] Figure 7 This is a three-dimensional schematic diagram of a vertical baffle assembly according to an embodiment of the present invention.

[0032] Figure 8 This is a three-dimensional schematic diagram of an auxiliary flow fixing element in one embodiment of the present invention.

[0033] Figure 9 This is a three-dimensional schematic diagram of a flap gate assembly according to an embodiment of the present invention.

[0034] In the diagram: 10. Track mounting trench; 11. Rigid track; 12. Lateral traction power equipment; 13. Installation channel; 14. Riverbank; 20. Unidirectional flow anti-salinity gate device; 30. Fixing device; 31. Boss; 311. First mounting groove; 312. Drainage surface; 40. Vertical baffle assembly; 41. Vertical support pipe; 411. Hollow cavity; 412. Sealing groove; 413. Third mounting groove; 414. Inclined surface; 415. Flexible block; 416. Water baffle; 42. Sleeve; 421. Sealing plate; 43. Second 50. Mounting slot; 51. Horizontal baffle assembly; 52. Horizontal support column; 53. Inclined platform; 54. Auxiliary diversion plate; 55. Water diversion channel; 56. Inclined channel; 67. Auxiliary flow support assembly; 68. Auxiliary support column; 69. Auxiliary flow fixing element; 60. Inclined plate; 61. Vertical plate; 62. Rubber block; 62. Stabilizing channel; 625. Impact surface; 70. Flap valve assembly; 71. Rigid flap valve; 72. Guide surface; 73. Auxiliary flow rotating gate; 74. Arc-shaped pipe; 75. Push block; 76. Push surface. Detailed Implementation

[0035] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0036] In the description of this invention, it should be noted that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] Please see Figures 1 to 9 A honeycomb-type modular unidirectional flow saltwater suppression gate device includes a track mounting base 10, a rigid track 11, a lateral traction power device 12, and multiple honeycomb modular unidirectional flow saltwater suppression gate devices 20. The track mounting base 10 is recessed along the width of the installation channel 13 on the bottom surface of the channel, and is perpendicular to the channel's central axis. The rigid track 11 is fixedly installed in the track mounting base 10. The lateral traction power device 12 is located on both riverbanks 14, opposite to the rigid track 11. The multiple unidirectional flow saltwater suppression gate devices 20 are driven by the lateral traction power device 12. The device is fixed in the rigid track 11, and multiple unidirectional flow anti-saltage flapping devices 20 are arranged at equal intervals along the length of the rigid track 11 or at equal intervals vertically, so that the multiple unidirectional flow anti-saltage flapping devices 20 form a chain structure in the installation channel 13; multiple fixing devices 30 are provided in the rigid track 11, and the multiple fixing devices 30 correspond to the multiple unidirectional flow anti-saltage flapping devices 20. Each fixing device 30 includes two protrusions 31, which are arranged at equal intervals along the length of the rigid track 11. Each protrusion 31 has a first mounting groove 311 recessed in the center and an inclined drainage surface 312 recessed around its periphery.

[0039] like Figure 4-9 As shown, each unidirectional flow suppression flapping device 20 includes two vertical baffle assemblies 40, two horizontal baffle assemblies 50, an auxiliary flow support assembly 60, and two flapping assemblies 70. The two vertical baffle assemblies 40 are respectively inserted into two first mounting grooves 311 and fixedly installed in two bosses 31. The top and middle of the end wall of each vertical baffle assembly 40 are respectively provided with second mounting grooves 43. The two ends of each horizontal baffle assembly 50 are respectively inserted into the corresponding two second mounting grooves 43 and installed on the two vertical baffle assemblies 40. The two horizontal baffle assemblies 50 are horizontally arranged. The auxiliary flow support assembly 60 is installed in the two vertical baffle assemblies 40 and the horizontal baffle assembly 50 located in the middle of the vertical baffle assemblies 40. The two flapping assemblies 70 are respectively hingedly installed on the side of the bottom surface of the two horizontal baffle assemblies 50 adjacent to the upstream side.

[0040] Each vertical baffle assembly 40 includes a vertical support tube 41 and a sleeve 42. Two second mounting grooves 43 are respectively formed at the top and middle of the end wall of the vertical support tube 41. A hollow cavity 411 is recessed on the top surface of the vertical support tube 41. Sealing grooves 412 are respectively recessed at the middle and top of the side wall adjacent to the upstream side of the hollow cavity 411. A third mounting groove 413 is recessed through the middle of each of the two sealing grooves 412, and the two third mounting grooves 413 are horizontal to the two second mounting grooves 43. The two third mounting slots 413 are recessed on the outer sides to form inclined surfaces 414. Each third mounting slot 413 is provided with a flexible block 415. The outer end of the flexible block 415 is recessed on the upstream side to form an inclined mounting surface. An inclined baffle 416 is provided on the mounting surface. A sealing plate 421 is provided in the middle of the side wall of the sleeve 42 near the upstream side. The top surface of the sleeve 42 is fixedly installed on the bottom surface of the vertical support pipe 41. The sleeve 42 passes through the first mounting slot 311 and is fixedly installed in the boss 31.

[0041] In one embodiment, the sleeve 42 can also be inserted into the top of the hollow cavity 411, so that the sealing plate 421 of the sleeve 42 is installed in the sealing groove 412, and the flexible block 415 abuts against the side wall of the sealing plate 421, so that multiple unidirectional flow salt suppression flapping devices 20 can be vertically installed. Then, by measuring the width of the installation channel 13, multiple unidirectional flow salt suppression flapping devices 20 are designed to be equidistantly spaced along the length direction of the rigid track 11, thereby realizing the flexible splicing operation of multiple unidirectional flow salt suppression flapping devices 20.

[0042] Each transverse baffle assembly 50 includes a transverse support column 51 and an auxiliary diversion plate 52. The two ends of the transverse support column 51 are respectively fixedly installed on the vertical support pipe 41 through two second mounting slots 43. An inclined platform 511 is formed by protruding from the middle of the top surface of the transverse support column 51 away from the upstream side. One side wall of the auxiliary diversion plate 52 is fixedly installed in the side wall of the transverse support column 51 adjacent to the upstream side.

[0043] The top surface of the auxiliary diversion plate 52 is provided with multiple inclined water diversion channels 521 at equal intervals on the upstream side, and one end wall of each of the multiple water diversion channels 521 is recessed to form an inclined groove 522.

[0044] The auxiliary flow support assembly 60 includes two auxiliary support columns 61 and an auxiliary flow fixing element 62. The auxiliary support columns 61 are made of flexible material, and each auxiliary support column 61 has an arc-shaped cross-section. The tip of the arc of the auxiliary support column 61 is located near the upstream side. The two auxiliary support columns 61 are fixedly installed at both ends on the inner wall of the two vertical support pipes 41 away from the upstream side. The two auxiliary support columns 61 are horizontally arranged, and one auxiliary support column 61 is located between the two transverse support columns 51, while the other auxiliary support column 61 is located between the transverse support column 51 and the bottom surface of the installation channel 13. The auxiliary flow fixing element 62 is rotatably installed on the top surface of the transverse baffle assembly 50 in the middle of the vertical baffle assembly 40 near the upstream side via a torsion spring.

[0045] like Figure 1-4 As shown. In one embodiment, rollers are also provided at the bottom of the two protrusions 31, so that the rollers can be used to move on the rigid track 11 during installation, making the installation more convenient and faster. Multiple sets of rigid tracks 11 can be arranged along the longitudinal direction of the installation channel 13, so that the unidirectional flow saltwater suppression gate devices 20 installed on multiple sets of rigid tracks 11 can be clamped and fixed to each other. While facilitating installation, it also ensures the stability of the honeycomb modular unidirectional flow saltwater suppression gate device, and enhances the device's resistance to seawater impact, thereby improving the device's strength in suppressing saltwater intrusion.

[0046] In another embodiment, the present invention can eliminate the need to install the auxiliary flow fixing element 62 based on the historical flow value in the installation channel 13, so that the lower part of the rigid flap gate 71 is in an unrestrained and relaxed state. This allows the rigid flap gate 71 to adjust its posture and position more flexibly according to the water flow, reducing the possible shaking and swaying in strong currents. This results in better ability to suppress ocean currents, reduces vibration and wear on the lower part of the rigid flap gate 71, extends the service life of the rigid flap gate 71, and makes it easier for maintenance personnel to inspect, install, or replace the rigid flap gate 71, thereby reducing maintenance costs.

[0047] The auxiliary flow fixing element 62 includes an inclined plate 621 and a vertical plate 622. The bottom end of the inclined plate 621 is rotatably mounted on the side of the top surface of the horizontal baffle assembly 50 in the middle of the vertical baffle assembly 40 near the upstream side via a torsion spring. Rubber blocks 623 are protruding from both ends of the side wall away from the upstream side of the inclined plate 621. The bottom surface of the rubber blocks 623 abuts against the top surface of the inclined platform 511. A stabilizing groove 624 is recessed in the middle of the side wall near the upstream side of the inclined plate 621. The top end of the inclined plate 621 is fixedly connected to the bottom surface of the vertical plate 622. An inclined striking surface 625 is recessed on the top surface of the vertical plate 622 near the upstream side.

[0048] Each flap assembly 70 includes a rigid flap 71 and two auxiliary flow rotating doors 72. The rigid flap 71 is hinged to the bottom surface of the transverse support column 51 near the upstream side, and the bottom surface of the rigid flap 71 abuts against the bottom surface of the stabilizing groove 624. The bottom of the side wall away from the upstream side of the rigid flap 71 abuts against the side wall of the stabilizing groove 624, and the middle part of the side wall away from the upstream side of the rigid flap 71 abuts against the side wall of the auxiliary support column 61. An inclined flow guide surface 711 is recessed at the bottom of the side wall near the upstream side of the rigid flap 71. The two auxiliary flow rotating doors 72 are rotatably mounted at both ends of the rigid flap 71 by torsion springs.

[0049] Each auxiliary flow rotating gate 72 has an arc-shaped tube 721 protruding from the bottom of the side wall away from the upstream side towards the center of the rigid flap gate 71. A push block 722 is provided inside the arc-shaped tube 721, and the bottom surface of the push block 722 abuts against the top surface of the inclined platform 511. An inclined push surface 723 is recessed on the inner side of the top surface of the push block 722, and the push surface 723 abuts against the side wall away from the upstream side of the inclined plate 621.

[0050] This invention can use historical data on water level, flow rate, and saline wedge height during historical dry seasons in the installed river channel 13 to calculate the design elevation of the cellular modular unidirectional flow saline suppression flap gate device 20 using a formula as shown below:

[0051]

[0052] In the formula, H(a,b,k) represents the design elevation of the cellular modular unidirectional flow saltwater suppression gate device 20, N represents the coefficient of the water level and flow rate data during the dry season of the tidal river section, and a i This represents the water level data for the i-th dry season in the tidal river section, b i This represents the flow data for the i-th dry season in the tidal river section. This is represented as a reference water level for the tidal section. Let x represent the reference flow rate for the tidal section, y represent the critical water level for the tidal section, and k represent the critical flow rate for the tidal section. i This represents the height of the bottom saline wedge in the i-th dry season of the tidal river segment. This represents the abnormal adjustment value of the safety experience data for the unidirectional flow salt-suppressing flap gate device 20 in tidal river sections.

[0053] Operators can determine the number of unidirectional flow salt-suppressing flap gates to be vertically and equidistantly spaced based on the design elevation calculated by the formula. Then, the sleeve 42 is inserted into the top of the hollow cavity 411, so that the sealing plate 421 of the sleeve 42 is installed in the sealing groove 412, and the flexible block 415 abuts against the side wall of the sealing plate 421, so that the multiple unidirectional flow salt-suppressing flap gates 20 can be vertically installed. Then, by measuring the width of the installation channel 13, the multiple unidirectional flow salt-suppressing flap gates 20 are designed to be equidistantly spaced along the length of the rigid track 11, so as to realize the flexible splicing operation of multiple unidirectional flow salt-suppressing flap gates 20, and realize the flexible customization of unidirectional flow salt-suppressing flap gates 20 according to the geometric dimensions of the installation channel.

[0054] For example, in one embodiment: when the direction of the rising tide is from downstream to upstream, i.e. from salt water to fresh water, resulting in a salt water flow F1, the salt water flow F1 will impact the two vertical baffle assemblies 40, the two horizontal baffle assemblies 50, the rigid flap gate 71, and the two auxiliary flow rotating gates 72, causing the rigid flap gate 71 and the two auxiliary flow rotating gates 72 to move further upstream. This causes the rigid flap gate 71 and the two auxiliary flow rotating gates 72 to press against the auxiliary support column 61. Since the auxiliary support column 61 is made of flexible material, the arc-shaped tip of the auxiliary support column 61 will... The deformation reduces the impact force of the water flow, and at the same time, it will cause the rigid flap gate 71 to move further upstream, causing the auxiliary flow fixing element 62 to rotate downward around the torsion spring, pressing the pushing surface 723 of the pushing block 722, causing the two auxiliary flow rotating gates 72 to rotate downstream, thereby counteracting the impact force of the saline water flow F1. The saline water flow F1 at the rigid flap gate 71 has an inclined guide surface 711 formed by the recessed bottom of the side wall near the upstream side of the rigid flap gate 71. As the rigid flap gate 71 moves further downstream, the guide surface 711 will contact the bottom surface of the installed river channel 13. The angle is further reduced, which further increases the inclination of the guide surface 711. This causes the saline water flow F1 to flow downwards under the guidance of the guide surface 711 to the transverse baffle assembly 50, and then to the water channel 521 of the auxiliary diversion plate 52. Guided by the water channel 521, most of the saline water flow F1 flows in the opposite direction, converging and impacting the subsequent saline water flow F1 flowing towards the unidirectional flow saline suppression gate device 20. This greatly reduces the impact force of the subsequent saline water flow F1, ensuring that during high tide, the saline water flow F1 is blocked by the unidirectional flow saline suppression gate device 20 at the bottom of the installed river channel 13. The water wedge moves upstream, weakening the intensity of the saltwater intrusion, reducing the erosion and mixing of freshwater with saltwater, protecting the ecology and the living environment of residents. At the same time, the deformation of the auxiliary support column 61 mitigates the impact of the saltwater flow F1, reducing damage to components such as baffles and flap gates, and improving the service life and stability of the protective facilities. Furthermore, by guiding the saltwater flow F1 downstream to the transverse baffle assembly 50 and then flowing back through the water diversion channel 521, the impact of subsequent tidal surges is effectively reduced, alleviating the workload of the saltwater suppression flap gate device, and improving the moisture-proof effect and the reliability of the facilities.

[0055] Simultaneously, a small portion of the saline water flow F1 will flow along the inclined groove 522 to the two vertical baffle assemblies 40, offsetting the lateral impact force of the saline water flow F1. Furthermore, when multiple unidirectional flow saline water suppression flap devices 20 are vertically and equidistantly stacked together, a portion of the saline water flow F1 guided by the upper unidirectional flow saline water suppression flap device 20 flows along the inclined groove 522 to the flexible blocks 415 and baffle plates 416 in the two third mounting grooves 413. This causes a portion of the saline water flow F1 to impact the sidewalls of the flexible blocks 415 and the bottom surface of the baffle plates 416. Since the baffle plates 416 are installed on the inclined mounting surface at the outer end of the flexible blocks 415, they are also inclined, causing the incoming water flow to flow back towards the center of the rigid flap gate 71. This creates vortices at the vertically connected joints of the multiple unidirectional flow saline water suppression flap devices 20, significantly reducing the saline water flow F1. The impact force flowing here provides a buffer zone at the connection, enhancing the impact resistance of the connection between the multiple unidirectional flow saltwater suppression flap devices 20. At the same time, when part of the saltwater flow F1 impacts the side wall of the flexible block 415 and the bottom surface of the baffle plate 416, it will also cause the flexible block 415 to move further towards the center of the hollow cavity 411, further compressing the connection between the flexible block 415 and the sealing plate 421. This makes the vertically set connection of the multiple unidirectional flow saltwater suppression flap devices 20 more stable, rationally guiding the flow direction of the saltwater flow F1, reducing the impact force of the saltwater suppression flap device 20, and at the same time reducing the impact force at the connection, enhancing the impact resistance of the connection. Through the generated backflow and eddies, a buffer zone appears at the connection for the saltwater flow F1, dispersing the impact force of the tidal surge, reducing damage to the system and components, and improving the service life and maintenance effect of the system.

[0056] For example, in one embodiment: when the direction of the ebb tide is from upstream to downstream, resulting in a freshwater flow F2, the freshwater flow F2 will impact the unidirectional flow saltwater suppression flap device 20. Since rubber blocks 623 protrude from both ends of the side wall away from the upstream side of the inclined plate 621, and the bottom surface of the rubber blocks 623 abuts against the top surface of the inclined platform 511, a guide gap is formed between the bottom surface of the inclined plate 621 and the top surface of the inclined platform 511. First, a small portion of the freshwater flow F2 will flow into the guide gap, causing the inclined plate 621 to tend to flip around the torsion spring. At the same time, since most of the freshwater flow F2 will impact the vertical plate 622, the rigid flap 71, and the two auxiliary flow rotating gates 72, the rigid flap 71 will move downstream, causing the bottom surface of the rigid flap 71 to no longer abut against the bottom surface of the stabilizing groove 624. This causes the guide gap to expand rapidly, causing the auxiliary flow fixing element 62 to flip rapidly, and the flipping speed of the auxiliary flow fixing element 62 is greater than that of the rigid flap 71. The speed of the flipping action ensures that when the auxiliary flow fixing element 62 flips, the striking surface 625 of the vertical plate 622 strikes the bottom of the rigid flap gate 71, causing the rigid flap gate 71 to open rapidly and the freshwater flow F2 to flow out quickly. After flipping, the auxiliary flow fixing element 62 will continue to flow out as the freshwater flow F2 continues, causing the inclined plate 621 to abut against the top surface of the auxiliary guide plate 52. At this time, the vertical plate 622 will be set vertically in the opposite direction, so that the striking surface 625 abuts against the top of the guide surface 711 of the other rigid flap gate 71, providing support for the other rigid flap gate 71. This also makes the flow direction of the freshwater flow F2 relatively stable, ensuring the stability and reliability of the system in complex environments. It also achieves rapid discharge of the freshwater flow F2, reduces the impact force and time of the freshwater flow F2, accelerates the discharge speed of the freshwater flow F2, reduces the time of water accumulation and the loss of freshwater resources, and achieves effective separation and protection of freshwater and saline water, enhancing the sustainability and stability of the environment.

[0057] Installation process: A track installation groove 10 is recessed on the bottom surface of the installation channel 13 along the width direction of the installation channel 13, and the track installation groove 10 is set perpendicular to the central axis of the channel. The rigid track 11 is fixedly installed in the track installation groove 10. The lateral traction power equipment 12 is set in the two riverbanks 14, and the lateral traction power equipment 12 is set opposite to the rigid track 11. The two ends of the lateral support column 51 are respectively inserted through two second installation grooves 43 and fixedly installed on the vertical support pipe 41. An inclined platform 511 is formed by protruding from the middle of the top surface of the lateral support column 51 away from the upstream side. The auxiliary diversion plate 52 is fixedly installed on one side wall of the transverse support column 51 near the upstream side wall. The two auxiliary support columns 61 are fixedly installed at both ends on the inner walls of the two vertical support pipes 41 away from the upstream side. The two auxiliary support columns 61 are horizontally arranged, with one auxiliary support column 61 located between the two transverse support columns 51 and the other auxiliary support column 61 located between the transverse support column 51 and the bottom surface of the installation channel 13. The bottom end of the inclined plate 621 is rotatably installed on the top surface of the transverse baffle assembly 50 near the upstream side in the middle of the vertical baffle assembly 40 via a torsion spring. The top of the inclined plate 621 is fixedly connected to the bottom of the vertical plate 622. The rigid flap gate 71 is hinged and installed on the bottom of the horizontal support column 51 near the upstream side, with the bottom of the rigid flap gate 71 abutting against the bottom of the stabilizing groove 624. The bottom of the side wall of the rigid flap gate 71 away from the upstream side abuts against the side wall of the stabilizing groove 624, and the middle of the side wall of the rigid flap gate 71 away from the upstream side abuts against the side wall of the auxiliary support column 61. Two auxiliary flow rotating gates 72 are rotatably installed on both ends of the rigid flap gate 71 by torsion springs. The bottom of the push block 722 abuts against the top of the inclined platform 511, and the push surface 723 abuts against the inclined plate 622. 21 Inclined plate 621 is placed on the side wall away from the upstream side. The two ends of each horizontal baffle assembly 50 are respectively inserted into the two corresponding second mounting slots 43 and installed on the two vertical baffle assemblies 40. The two horizontal baffle assemblies 50 are set horizontally. Multiple unidirectional flow anti-saltage flapping devices 20 are pulled and fixed in the installation rigid rail 11 by the horizontal traction power equipment 12. Multiple unidirectional flow anti-saltage flapping devices 20 are set at equal intervals along the length direction of the rigid rail 11 or at equal intervals vertically, so that multiple unidirectional flow anti-saltage flapping devices 20 form a chain structure and are set in the installation channel 13.

[0058] Beneficial effects: 1. The rigid flap gate 71 in this invention is made of a new type of rigid material with low density, high strength, corrosion resistance and thinness. The design elevation of the unidirectional flow salt suppression flap gate device can be determined by calculating the honeycomb module assembly according to the formula. This allows for flexible customization of the unidirectional flow salt suppression flap gate device according to the geometric dimensions of the installed river channel. Furthermore, multiple unidirectional flow salt suppression flap gate devices can be assembled in a modular manner, making the invention stable, strong and corrosion resistant.

[0059] 2. This invention is applicable to periods of significant saltwater intrusion during the dry season. When not in use, the unidirectional flow saltwater suppression gate device 20 can be disassembled and removed sequentially using the rigid track 11 and the lateral traction power equipment 12. Furthermore, the unidirectional flow saltwater suppression gate device 20 can be designed to suit the width of the installation channel 13 and the height of the saltwater wedge, etc. It features convenient design and assembly, strong adaptability, and advantages such as reusability, economy, and convenience.

[0060] 3. During low tide, the auxiliary flow fixing element 62, in conjunction with the flap gate assembly 70, does not affect the river's flood discharge and drainage functions, does not alter the original river topography, and does not significantly obstruct the low tide flow during the dry season. Simultaneously, it effectively suppresses the intensity and distance of saltwater intrusion during the dry season in tidal river sections, enhancing the water intake guarantee rate, reliability, and stability of freshwater intake conditions in upstream and downstream tidal river sections during the dry season.

[0061] 4. During high tide, the unidirectional flow saltwater suppression flapping device 20 can also utilize the cooperation of the vertical baffle assembly 40 and the horizontal baffle assembly 50 to generate backflow and eddies at the vertical connection of multiple unidirectional flow saltwater suppression flapping devices 20. This creates a buffer zone for the saltwater flow F1 at the connection, dispersing the impact force of the tidal surge, reducing damage to the system and components, improving the service life and maintenance effect of the system, and making the vertical connection of multiple unidirectional flow saltwater suppression flapping devices 20 more stable.

[0062] 5. This invention does not significantly affect the flood discharge and drainage functions of the river channel, does not change the original topography of the river channel, and will not significantly obstruct the ebb tide flow during the dry season. During high tide, the saline water flow F1 is blocked by the unidirectional flow saline-suppressing flap gate device 20 and flows upstream against the saltwater wedge at the bottom of the river channel 13, weakening the upstream intensity of the saline tide, reducing the erosion and mixing of saline water with fresh water, protecting the ecology and the living environment of residents. At the same time, the deformation of the auxiliary support column 61 mitigates the impact of the saline water flow F1, reduces damage to components such as baffles and flap gates, and improves the service life and stability of the protective facilities. Furthermore, by guiding the saline water flow F1 downstream to the transverse baffle assembly 50 and then flowing backward through the water diversion channel 521, the impact of the subsequent tidal surge is effectively reduced, the workload of the saline-suppressing flap gate device is reduced, and the moisture-proof effect and the reliability of the facilities are improved.

[0063] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A honeycomb-assembled unidirectional flow damping gate device, characterized in that: The system includes a track mounting base (10), a rigid track (11), a lateral traction power device (12), and multiple unidirectional flow anti-saltage gate devices (20) that can be assembled using honeycomb modules. The track mounting base (10) is recessed on the bottom surface of the installation channel (13) along the width direction of the installation channel (13), and the track mounting base (10) is set perpendicular to the central axis of the channel. The rigid track (11) is fixedly installed in the track mounting base (10). The lateral traction power device (12) is set in the two riverbanks (14), and the lateral traction power device (12) is set opposite to the rigid track (11). Multiple unidirectional flow anti-saltage gate devices (20) are pulled and fixed to the rigid track by the lateral traction power device (12). In (11), multiple unidirectional flow salt-suppressing flap gate devices (20) are arranged at equal intervals along the length of the rigid track (11) or at equal intervals vertically, so that multiple unidirectional flow salt-suppressing flap gate devices (20) form a chain structure in the installation channel (13); multiple fixing devices (30) are arranged in the rigid track (11), and the multiple fixing devices (30) correspond to the multiple unidirectional flow salt-suppressing flap gate devices (20). Each fixing device (30) includes two bosses (31), the two bosses (31) are arranged at equal intervals along the length of the rigid track (11), each boss (31) has a first mounting groove (311) recessed in the center, and each boss (31) has an inclined drainage surface (312) recessed around its periphery. Each unidirectional flow suppression flap device (20) includes two vertical baffle assemblies (40), two horizontal baffle assemblies (50), an auxiliary flow support assembly (60), and two flap assembly (70). The two vertical baffle assemblies (40) are respectively inserted into two first mounting grooves (311) and fixedly installed in two bosses (31). The top and middle of the end wall of each vertical baffle assembly (40) are respectively provided with second mounting grooves (43). The two ends of each horizontal baffle assembly (50) are respectively inserted into the corresponding two second mounting grooves (43) and installed on the two vertical baffle assemblies (40). The two horizontal baffle assemblies (50) are horizontally arranged. The auxiliary flow support assembly (60) is installed in the two vertical baffle assemblies (40) and the horizontal baffle assembly (50) set in the middle of the vertical baffle assembly (40). The two flap assembly (70) are respectively hingedly installed on the side of the bottom surface of the two horizontal baffle assemblies (50) adjacent to the upstream side.

2. The honeycomb-assembled unidirectional flow damping gate device according to claim 1, characterized in that: Each vertical baffle assembly (40) includes a vertical support tube (41) and a sleeve (42). Two second mounting grooves (43) are formed at the top and middle of the end wall of the vertical support tube (41), respectively. A hollow cavity (411) is recessed on the top surface of the vertical support tube (41). Sealing grooves (412) are recessed at the middle and top of the side wall adjacent to the upstream side of the hollow cavity (411). A third mounting groove (413) is recessed through the middle of each of the two sealing grooves (412), and the two third mounting grooves (413) are horizontal to the two second mounting grooves (43). The two third mounting slots (413) are recessed on the outside to form an inclined surface (414). Each third mounting slot (413) is provided with a flexible block (415). The outer end of the flexible block (415) is recessed on the upstream side to form an inclined mounting surface. An inclined baffle (416) is provided on the mounting surface. A sealing plate (421) is provided in the middle of the side wall of the sleeve (42) near the upstream side. The top surface of the sleeve (42) is fixedly installed on the bottom surface of the vertical support pipe (41). The sleeve (42) passes through the first mounting slot (311) and is fixedly installed in the boss (31).

3. The honeycomb-assembled unidirectional flow damping gate device according to claim 2, characterized in that: Each transverse baffle assembly (50) includes a transverse support column (51) and an auxiliary diversion plate (52). The two ends of the transverse support column (51) are respectively fixedly installed on the vertical support pipe (41) through two second mounting slots (43). An inclined platform (511) is formed by protruding from the middle of the top surface of the transverse support column (51) away from the upstream side. One side wall of the auxiliary diversion plate (52) is fixedly installed in the side wall of the transverse support column (51) adjacent to the upstream side.

4. The honeycomb-assembled unidirectional flow damping gate device according to claim 3, characterized in that: The top surface of the auxiliary diversion plate (52) is provided with multiple inclined water diversion channels (521) at equal intervals on the upstream side. One end wall of each of the multiple water diversion channels (521) is recessed to form an inclined groove (522).

5. The honeycomb-assembled unidirectional flow damping gate device according to claim 4, characterized in that: The auxiliary flow support assembly (60) includes two auxiliary support columns (61) and an auxiliary flow fixing element (62). The auxiliary support columns (61) are made of flexible material. Each auxiliary support column (61) has an arc-shaped cross-section, and the tip of the arc of the auxiliary support column (61) is located near the upstream. The two auxiliary support columns (61) are fixedly installed at both ends on the inner wall of the two vertical support pipes (41) away from the upstream. The two auxiliary support columns (61) are horizontally arranged, and one of the auxiliary support columns (61) is located between the two transverse support columns (51), and the other auxiliary support column (61) is located between the transverse support column (51) and the bottom surface of the installation channel (13). The auxiliary flow fixing element (62) is rotatably installed on the top surface of the transverse baffle assembly (50) in the middle of the vertical baffle assembly (40) near the upstream by means of a torsion spring.

6. The honeycomb-assembled unidirectional flow damping gate device according to claim 5, characterized in that: The auxiliary flow fixing element (62) includes an inclined plate (621) and a vertical plate (622). The bottom end of the inclined plate (621) is rotatably mounted on the side of the top surface of the horizontal baffle assembly (50) in the middle of the vertical baffle assembly (40) near the upstream side via a torsion spring. Rubber blocks (623) are protruding from both ends of the side wall away from the upstream side of the inclined plate (621). The bottom surface of the rubber blocks (623) abuts against the top surface of the inclined platform (511). A stabilizing groove (624) is recessed in the middle of the side wall near the upstream side of the inclined plate (621). The top end of the inclined plate (621) is fixedly connected to the bottom surface of the vertical plate (622). An inclined striking surface (625) is recessed in the top surface of the vertical plate (622) near the upstream side.

7. The honeycomb-assembled unidirectional flow damping gate device according to claim 6, characterized in that: Each flap assembly (70) includes a rigid flap (71) and two auxiliary flow rotating doors (72). The rigid flap (71) is made of a low-density, high-strength rigid material. The rigid flap (71) is hinged to the bottom surface of the transverse support column (51) near the upstream side, and the bottom surface of the rigid flap (71) abuts against the bottom surface of the stabilizing groove (624). The bottom of the side wall away from the upstream side of the rigid flap (71) abuts against the side wall of the stabilizing groove (624). The middle part of the side wall away from the upstream side of the rigid flap (71) abuts against the side wall of the auxiliary support column (61). The bottom of the side wall near the upstream side of the rigid flap (71) is recessed to form an inclined flow guide surface (711). The two auxiliary flow rotating doors (72) are rotatably mounted on both ends of the rigid flap (71) by torsion springs.

8. The honeycomb-assembled unidirectional flow damping gate device according to claim 7, characterized in that: Each auxiliary flow rotating gate (72) has an arc-shaped tube (721) protruding from the bottom of the side wall away from the upstream side towards the center of the rigid flap gate (71). A push block (722) is provided inside the arc-shaped tube (721), and the bottom surface of the push block (722) abuts against the top surface of the inclined platform (511). An inclined push surface (723) is recessed on the inner side of the top surface of the push block (722), and the push surface (723) abuts against the side wall away from the upstream side of the inclined plate (621).

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