Air curtain generating device for silt prevention of harbor basin and wharf
By designing multiple gas generator modules and air curtain generators with rotating jet pipes on the port pool and docks, the problem of air curtain stability being disturbed by aquatic plants and fish is solved, and the stability and dredging effect of the air curtain are achieved. promote.
Patent Information
- Application Number
- CN202420912570.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-29
AI Technical Summary
When used, the existing air curtain silt transfer technology has no resistance to aquatic plants and fish disturbances due to the fixed release position of the micro bubbles, which affects the stability of the air curtain and the anti-silt effect.
A gas curtain generator for harbor and docks is designed, through multiple gas generator modules arranged in sequence along a straight line. Each module includes a main pipe, a branch pipe and a frame. A rotating connected strip spray is installed on the branch pipe. The air pipe and the jet pipe swing back and forth under the impact of high-pressure gas, releasing micro bubbles, forming an air curtain to impart kinetic energy to the silt and sand, and avoiding aquatic plants and fishes from climbing through the swing mechanism.
It effectively improves the stability of the air curtain, avoids the influence of aquatic plants and fish on the silt and anti-silt effect, enables the silt and sand to float up effectively and follow the water flow, ensuring the silt and anti-silt effect of the harbor and dock.
Smart Images
Figure CN222161085U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of silting removal, in particular to an air curtain generating device for preventing silting of a harbor and a dock. Background Art
[0002] Harbors and docks are important facilities in water transportation. During long-term operation, silt will continue to accumulate under the harbors and docks, affecting the normal operation of the harbors and docks and the navigation safety of ships. Therefore, harbors and docks need to be dredged every year to ensure the safe navigation of ships, and air curtain silt removal technology is one of the technologies used for silt removal and prevention.
[0003] Air curtain siltation transport technology generally arranges porous pipes on the bottom of the water to release a large number of microbubbles. The released microbubbles form an air curtain to give additional kinetic energy to the passing silt, thereby lifting the silt to the water surface and flowing with the water flow, enhancing the sand-carrying force of the water flow and reducing the amount of silt deposited in the same time. However, when the existing air curtain siltation transport technology is used, the position of microbubble release is fixed, and it has no resistance to entanglement of aquatic plants and disturbance of fish, which has a great impact on the stability of the air curtain and the silt removal and prevention effects. Utility Model Content
[0004] The utility model aims to provide an air curtain generating device for preventing siltation in a harbor and a dock, so as to solve the problem in the prior art that aquatic plants and fishes cause great disturbance to the stability of the air curtain.
[0005] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:
[0006] An air curtain generating device for preventing siltation in a harbor and a dock comprises a plurality of gas generating modules arranged in sequence along a straight line, each of the gas generating modules comprises a main pipeline, a plurality of branch pipelines and a frame, the main pipeline is connected to an air compressor, and the plurality of branch pipelines are connected to the main pipeline, the frame is used for fixing the main pipeline and the plurality of branch pipelines, each of the branch pipelines is rotatably connected to a strip jet pipe, each of the strip jet pipes is connected to a corresponding branch pipeline, and the strip jet pipes are used for releasing microbubbles and swing back and forth around a horizontal straight line under the impact of the high-pressure gas in the branch pipeline.
[0007] As a preferred solution of the utility model, the strip jet pipe includes two transmission chambers arranged on and connected to the branch pipe, each of the transmission chambers is provided with a pneumatic transmission component, and the pneumatic transmission component is driven to rotate by gas, a hollow fixed shaft with openings at both ends is commonly provided on the two pneumatic transmission components, and the axis of the hollow fixed shaft is parallel to the axis of the branch pipe, a strip pipe is fixedly connected to the hollow fixed shaft, a plurality of air holes are opened on the hollow fixed shaft, a plurality of air nozzles for releasing bubbles are evenly spaced on the strip pipe along the axial direction of the branch pipe, and the hollow fixed shaft is driven to rotate intermittently by the pneumatic transmission component and the gravity of the strip pipe.
[0008] As a preferred solution of the utility model, the pneumatic transmission member includes a connecting roller rotatably connected to the side wall of the transmission chamber, and a plurality of transmission blades are evenly arranged around the circumference of the connecting roller around its own axis;
[0009] The end of the hollow fixed shaft is fixedly sleeved with a connecting sleeve, and the circumference of the connecting sleeve is evenly provided with force-bearing fan blades around the axis of the hollow fixed shaft;
[0010] Among them, the motion trajectory of the transmission blades and the motion trajectory of the force-bearing blades interfere with each other, and after one of the transmission blades loses contact with one of the force-bearing blades, the contact interval between the adjacent transmission blades and the corresponding force-bearing blades is greater than zero.
[0011] As a preferred solution of the utility model, a counterweight block is arranged at the bottom of the strip tube.
[0012] As a preferred solution of the utility model, the transmission chamber includes a box body fixedly connected to the branch pipe, and an air inlet connected to the branch pipe is opened on the inner wall of the box body, and the height of the air inlet is greater than the height of the connecting roller, and the cross-sectional area of the air inlet along the air inlet direction gradually decreases.
[0013] As a preferred solution of the utility model, when the volume of the high-pressure gas received by the branch pipeline is zero, the release direction of the gas nozzle is tilted downward along the horizontal direction.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] (1) The utility model arranges a plurality of gas generating modules in a straight line, and releases microbubbles from a strip-shaped air jet pipe to form an air curtain to re-endow the deposited silt with upward kinetic energy, so that the silt floats to the water surface again and flows away with the water flow, thereby desilting and preventing siltation in the harbor and dock;
[0016] (2) The utility model releases microbubbles through the reciprocating swing of the strip jet pipe, which has a disturbing effect on aquatic plants and fish, and can effectively prevent aquatic plants from clinging and fish from approaching, thereby ensuring the stability of the air curtain generation, thereby avoiding affecting the silt removal and anti-siltation effect of the harbor and the dock. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.
[0018] Figure 1 This is a schematic diagram of the structure of an air curtain generating device for preventing siltation in a harbor or dock according to the utility model;
[0019] Figure 2 This is a schematic diagram of the structure of the pneumatic transmission component of the utility model;
[0020] Figure 3 It is a schematic diagram of the side sectional structure of the strip-shaped air jet pipe of the utility model.
[0021] The numbers in the figure represent the following:
[0022] 1. Main pipeline; 2. Branch pipeline; 3. Frame; 4. Strip jet pipe;
[0023] 401, transmission chamber; 402, pneumatic transmission part; 403, hollow fixed shaft; 404, strip tube; 405, air hole; 406, air nozzle; 407, connecting roller; 408, transmission blade; 409, connecting sleeve; 410, force-bearing blade; 411, counterweight; 412, box; 413, air inlet. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.
[0026] like Figures 1 to 3 As shown, the utility model provides an air curtain generating device for anti-silting of harbors and docks, comprising a plurality of gas generating modules arranged in sequence along a straight line, each gas generating module comprising a main pipeline 1, a plurality of branch pipelines 2 and a frame 3, the main pipeline 1 is connected to an air compressor, and the plurality of branch pipelines 2 are connected to the main pipeline 1, the frame 3 is used for fixing the main pipeline 1 and the plurality of branch pipelines 2, each branch pipeline 2 is rotatably connected to a strip jet pipe 4, each strip jet pipe 4 is connected to the corresponding branch pipeline 2, and the strip jet pipe 4 is used for releasing microbubbles, and swings back and forth around a horizontal straight line under the impact of the high-pressure gas in the branch pipeline 2.
[0027] In actual application of the utility model, a main pipeline 1 and multiple branch pipelines 2 are installed through a frame 3 to form a gas generating module. The multiple gas generating modules are arranged in sequence along a straight line, so that microbubbles released through the strip jet pipes 4 form an air curtain to re-endow the deposited silt with upward kinetic energy, so that the silt floats and flows away with the water flow, thereby dredging and preventing siltation in the harbor and the dock. In this embodiment, an air compressor is connected to the main pipeline 1 to provide high-pressure air for the multiple gas generating modules.
[0028] When the strip jet pipe 4 releases microbubbles, high-pressure air flows from the branch pipe 2 into the strip jet pipe 4, and the high-pressure air drives the strip jet pipe 4 to swing, so that the bubbles released by the strip jet pipe 4 not only cover a larger range, but also can effectively prevent water plants from clinging and fish from approaching through the swinging. At the same time, since the reciprocating swing of the strip jet pipe 4 is regular, the air curtain formed during the swinging is also relatively stable, so that the stability of the air curtain generation can be effectively guaranteed, thereby ensuring the effect of dredging and preventing siltation for harbors and docks.
[0029] The strip jet pipe 4 includes two transmission chambers 401 arranged on the branch pipe 2 and connected to the branch pipe 2, each transmission chamber 401 is provided with a pneumatic transmission member 402, and the pneumatic transmission member 402 is driven to rotate by gas, and a hollow fixed shaft 403 with openings at both ends is commonly provided on the two pneumatic transmission members 402, and the axis of the hollow fixed shaft 403 is parallel to the axis of the branch pipe 2, a strip pipe 404 is fixedly connected to the hollow fixed shaft 403, a plurality of air holes 405 are opened on the hollow fixed shaft 403, and a plurality of air nozzles 406 for releasing bubbles are evenly spaced on the strip pipe 404 along the axial direction of the branch pipe 2, and the hollow fixed shaft 403 is driven by the pneumatic transmission member 402 and the gravity of the strip pipe 404 to rotate intermittently.
[0030] When the strip jet tube 4 is in use, the gas in the branch pipe 2 enters the two transmission chambers 401 and impacts the pneumatic transmission part 402 to make it rotate, thereby driving the hollow fixed shaft 403 to rotate, and then driving the strip tube 404 to rotate, and the pneumatic transmission part 402 drives the hollow fixed shaft 403 to rotate in the opposite direction through the gravity of the strip tube 404 in the rotation gap, so that the strip tube 404 rotates in the opposite direction, and the pneumatic transmission part 402 drives the hollow fixed shaft 403 to rotate again under the continuous impact of the gas, so that the strip tube 404 swings back and forth under the action of the pneumatic transmission part 402 and its own gravity, so that the microbubbles released by the multiple air nozzles 406 on the strip tube 404 disturb the fish, and the strip tube 404 swings to prevent water plants from clinging and fish from approaching, thereby avoiding the disturbance of the generated microbubbles by water plants and fish, and ensuring the stability of the generated air curtain.
[0031] The gas passes through the main pipe 1, the branch pipe 2, and the transmission chamber 401 in sequence. Since both ends of the hollow fixed shaft 403 are open, the air enters the hollow fixed shaft 403 from the transmission chamber 401 through the end of the hollow fixed shaft 403, and is released into the strip tube 404 through the air hole 405, and finally released through multiple air nozzles 406 to form microbubbles.
[0032] The pneumatic transmission member 402 includes a connecting roller 407 rotatably connected to the side wall of the transmission chamber 401 , and a plurality of transmission blades 408 are evenly arranged around the circumference of the connecting roller 407 and around its own axis.
[0033] The end of the hollow fixed shaft 403 is fixedly sleeved with a connecting sleeve 409 , and force-bearing blades 410 are evenly arranged around the circumference of the connecting sleeve 409 and around the axis of the hollow fixed shaft 403 .
[0034] Among them, the movement trajectory of the transmission blade 408 and the movement trajectory of the force-bearing blade 410 interfere with each other, and after one of the transmission blades 408 loses contact with one of the force-bearing blades 410, the contact interval between the adjacent transmission blades 408 and the corresponding force-bearing blade 410 is greater than zero.
[0035] When the pneumatic transmission part 402 is impacted by the high-pressure gas in the branch pipe 2, the transmission blades 408 first come into contact with the high-pressure gas and are impacted to drive the connecting roller 407 to rotate, so that the transmission blades 408 rotate to contact the force-bearing blades 410, and press the force-bearing blades 410 to drive the connecting sleeve 409 to rotate, thereby driving the hollow fixed shaft 403, and then driving the strip tube 404 to rotate upward.
[0036] When the transmission blade 408 is out of contact with the force-bearing blade 410, the next transmission blade 408 has not rotated to contact with the corresponding force-bearing blade 410, so that the hollow fixed shaft 403 rotates in the opposite direction under the action of the gravity of the strip tube 404, and the strip tube 404 also rotates in the opposite direction. When the transmission blade 408 and the force-bearing blade 410 are in contact again, the transmission blade 408 drives the strip tube 404 to rotate forward again through the impact of the high-pressure gas. With the continuous input of high-pressure gas, the strip tube 404 swings back and forth, which effectively avoids the influence of aquatic plants climbing and fish approaching on the stability of air curtain generation.
[0037] Furthermore, the center of gravity of the strip tube 404 should be as far away from the center of gravity as possible and away from the branch pipe 2, which is conducive to the resetting of the strip tube 404 when it is not pressed by the transmission blades 408.
[0038] A counterweight 411 is disposed at the bottom of the strip tube 404 .
[0039] The counterweight block 411 is provided to facilitate the restoration of the strip tube 404 .
[0040] The transmission chamber 401 includes a box body 412 fixedly connected to the branch pipe 2, and an air inlet 413 connected to the branch pipe 2 is opened on the inner wall of the box body 412. The height of the air inlet 413 is greater than the height of the connecting roller 407, and the cross-sectional area of the air inlet 413 along the air intake direction gradually decreases.
[0041] The gas entering the box 412 through the air inlet 413 only impacts the transmission fan blade 408 above, so that the connecting roller 407 rotates in only one direction, ensuring the stability of the reciprocating swing of the strip tube 404. The air inlet 413 gradually decreases, so that the flow rate of the gas gradually increases, which is beneficial to increase the impact force of the gas on the transmission fan blade 408.
[0042] When the volume of high-pressure gas received by the branch pipe 2 is zero, the release direction of the gas nozzle 406 is tilted downward along the horizontal direction, thereby enhancing the effect and range of the gas curtain formed by the microbubbles released by the gas nozzle 406 on sediment disturbance.
[0043] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the utility model, and are not intended to limit the implementation methods of the technology of the utility model in any form. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the utility model, but they should still be regarded as technologies or embodiments that are essentially the same as the utility model.
[0044] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of this application.
Claims
1. An air curtain generating device for preventing siltation in a harbor or dock, characterized in that: The invention comprises a plurality of gas generating modules arranged in sequence along a straight line, each of the gas generating modules comprising a main pipeline (1), a plurality of branch pipelines (2) and a frame (3), the main pipeline (1) being connected to an air compressor, and the plurality of branch pipelines (2) being connected to the main pipeline (1), the frame (3) being used for fixing the main pipeline (1) and the plurality of branch pipelines (2), each of the branch pipelines (2) being rotatably connected to a strip-shaped jet pipe (4), each of the strip-shaped jet pipes (4) being connected to a corresponding branch pipeline (2), and the strip-shaped jet pipe (4) being used for releasing microbubbles and swinging back and forth around a horizontal straight line under the impact of high-pressure gas in the branch pipeline (2).
2. The air curtain generating device for preventing siltation in a port or dock according to claim 1, characterized in that: The strip-shaped air jet pipe (4) comprises two transmission chambers (401) arranged on the branch pipe (2) and connected to the branch pipe (2), each transmission chamber (401) is provided with a pneumatic transmission member (402), and the pneumatic transmission member (402) is driven to rotate by gas, a hollow fixed shaft (403) with openings at both ends is commonly provided on the two pneumatic transmission members (402), and the axis of the hollow fixed shaft (403) is parallel to the axis of the branch pipe (2), a strip-shaped pipe (404) is fixedly connected to the hollow fixed shaft (403), a plurality of air holes (405) are opened on the hollow fixed shaft (403), a plurality of air nozzles (406) for releasing bubbles are evenly spaced on the strip-shaped pipe (404) along the axial direction of the branch pipe (2), and the hollow fixed shaft (403) is driven to rotate intermittently by the pneumatic transmission member (402) and the gravity of the strip-shaped pipe (404).
3. The air curtain generating device for preventing siltation in a port or dock according to claim 2, characterized in that: The pneumatic transmission member (402) comprises a connecting roller (407) rotatably connected to the side wall of the transmission chamber (401), and a plurality of transmission blades (408) are evenly arranged around the circumference of the connecting roller (407) and around its own axis; The end of the hollow fixed shaft (403) is fixedly sleeved with a connecting sleeve (409), and the circumference of the connecting sleeve (409) is evenly provided with force-bearing fan blades (410) around the axis of the hollow fixed shaft (403); The motion trajectory of the transmission blade (408) and the motion trajectory of the force-bearing blade (410) interfere with each other, and after one of the transmission blades (408) loses contact with one of the force-bearing blades (410), the contact interval between the adjacent transmission blades (408) and the corresponding force-bearing blade (410) is greater than zero.
4. The air curtain generating device for preventing siltation in a port or dock according to claim 2, characterized in that: A counterweight block (411) is provided at the bottom of the strip tube (404).
5. The air curtain generating device for preventing siltation in a port or dock according to claim 3, characterized in that: The transmission chamber (401) comprises a box body (412) fixedly connected to the branch pipe (2); an air inlet (413) communicating with the branch pipe (2) is provided on the inner wall of the box body (412); the height of the air inlet (413) is greater than the height of the connecting roller (407); and the cross-sectional area of the air inlet (413) gradually decreases along the air inlet direction.
6. The air curtain generating device for preventing siltation in harbors and docks according to claim 2, characterized in that: When the volume of high-pressure gas received by the branch pipe (2) is zero, the release direction of the gas nozzle (406) is tilted downward along the horizontal direction.