Side wall structure of mud cabin pumping channel
By designing a high-pressure water supply system and a sealing door structure in the mud chamber channel of a trailing suction hopper dredger, the problem of mud door rubber strip jamming was solved, the mud door's sealing and efficient drainage were achieved, maintenance costs were reduced, and construction efficiency was improved.
Patent Information
- Application Number
- CN202422985522.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-12-04
AI Technical Summary
The existing mud door rubber strips of trailing suction hopper dredgers are prone to accumulating foreign matter, resulting in mud leakage caused by loose closure of the mud door, increasing maintenance costs and reducing construction efficiency.
A mud tank pumping channel side wall structure is designed. A high-pressure water supply system is used to flush the bulkhead and mud door through a water spray pipe and a cleaning port to prevent foreign matter from accumulating. A sealing door and support plate structure are used to maintain the sealing and flow conductivity of the channel.
It effectively prevents mud door from leaking mud, reduces maintenance costs, improves construction efficiency, and has a simple structure and is easy to use.
Smart Images
Figure CN223355816U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of trailing suction dredgers, in particular to a side wall structure of a mud tank pumping channel. Background Art
[0002] A trailing suction hopper dredger is a type of suction dredger. It draws in mud through a rake head located on either side or at the stern of the hull, operating while it churns. A trailing suction hopper dredger uses mud rakes to loosen the soil and features an open mud tank midship. The tank's volume represents the vessel's size. During dredging, a rake suction pipe is lowered to the riverbed. The vacuum created by the mud pump draws mud from the riverbed through the rake head and suction pipe into the dredger's mud bunker. Once the bunker is full, the rake is raised and the dredger sails to the dumping area, where mud gates are opened for unloading, or the dredged mud is simply discharged overboard. Some dredgers can also automatically vacuum out mud discharged from the bunker for blowback.
[0003] The pumping channel within a trailing suction hopper dredger's mud tank is used to pump mud from the tank to the outside during filling operations. The pumping channel is a crucial structure within a vessel or related equipment for extracting sediment or other materials, playing a particularly crucial role in dredging vessels (such as trailing suction hopper dredgers) and certain specialized engineering vessels. Typically located within or near a vessel's mud tank, the pumping channel is used to extract sediment or other materials through a specific method (such as suction or pumping). Its primary function is to enable rapid and efficient discharge of sediment to meet the vessel's operational needs.
[0004] Currently, the mud tank discharge process requires opening the mud door and then draining through the tank pumping channel. When the mud door is opened to discharge mud, foreign matter may get stuck in the mud door rubber strips. Over time, this foreign matter accumulates, causing the mud door to not close tightly and leak mud. This in turn increases the number of docking repairs, increases maintenance costs, and reduces construction efficiency. Utility Model Content
[0005] The purpose of the utility model is to overcome the shortcomings of the prior art that the mud door rubber strips are easily stuck with foreign objects, resulting in the mud door not closing tightly and leaking mud, and to provide a mud tank extraction channel side wall structure with reasonable design, simple structure, and easy use. It can prevent foreign objects from being stuck and avoid mud leakage from the mud door, which not only saves maintenance costs but also improves construction efficiency.
[0006] The utility model is realized through the following technical scheme: a mud tank pumping channel side wall structure, comprising two symmetrically arranged mud tank coamings, the top of the mud tank coamings is provided with a mud tank deck located below the main deck, and the bottom of the mud tank coamings is provided with a mud tank bottom plate; an inclined bulkhead is provided between the inner side of each mud tank coaming and the top side of the mud tank bottom plate, the two bulkheads are symmetrically arranged so that the bulkhead and the mud tank bottom plate form an inverted isosceles trapezoidal structure; a mud door is provided at the mud tank bottom plate, the mud door is connected to the pumping channel, and the pumping channel is connected to mud unloading equipment; a cleaning port is provided on the outer side of the bulkhead, and a sealing door that opens and closes up and down is provided at the cleaning port, and the sealing door can always close the cleaning port under the action of gravity; a water spray pipe corresponding to the cleaning port is provided on the inner side of the bulkhead through a support member, and a water spray port connected to the cleaning port is provided at a position corresponding to the cleaning port on the water spray pipe; the water spray pipe is connected to a high-pressure water supply system through a water pipe, and a control valve is equipped at the water pipe.
[0007] A further improvement of the present invention is that the sealing door is completely placed inside the cleaning port, the top of the sealing door is rotatably connected to the inner top of the cleaning port, and a support plate located below the sealing door is provided on the inner wall of the cleaning port. The support plate is used to support the edge of the sealing door, so that the outer side of the sealing door and the outer side of the bulkhead can be in the same plane.
[0008] A further improvement of the present invention is that the support plate is arranged along the inner wall of the cleaning port to form a closed frame structure.
[0009] A further improvement of the present invention is that a filter is provided inside the frame structure.
[0010] A further improvement of the present invention is that a sealing strip corresponding to the support plate is provided at the inner edge of the sealing door.
[0011] A further improvement of the present invention is that a counterweight chamber is provided on the sealed door.
[0012] A further improvement of the present invention is that a mud tank fender is provided between the mud tank deck and the main deck.
[0013] From the above technical solutions, it can be seen that the beneficial effects of the present invention are as follows: the structure is reasonably designed, simple in structure, and easy to use. When the mud tank discharge operation is completed, the mud door is kept open first, and the staff starts the high-pressure water supply system. The high-pressure water flows through the water pipe and is sprayed out through the water nozzle and the cleaning port, thereby flushing the sealing door. At this time, the angle between the sealing door and the bulkhead is an acute angle, that is, the mud tank coaming and the bulkhead form a side wall structure of the tank pumping channel, which can divert the high-pressure water flow. Under the action of the sealing door, part of the high-pressure water flow will be directly sprayed toward the mud door, and the remaining water flow will flow along the above-mentioned side wall structure to the mud door, thereby flushing the bulkhead and the mud door. The flushing water is finally discharged through the tank pumping channel, thereby preventing foreign matter from getting stuck on the rubber strip of the mud door. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. 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 any creative work.
[0015] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model.
[0016] Figure 2 It is a cross-sectional view of a bulkhead according to a specific embodiment of the present invention.
[0017] Figure 3 It is a structural schematic diagram of a cleaning port in a specific embodiment of the present utility model.
[0018] 1. Mud tank coaming; 2. Mud tank deck; 3. Mud tank bottom plate; 4. Bulkhead; 401. Cleaning port; 402. Support plate; 403. Filter screen; 5. Mud door; 6. Tank extraction channel; 7. Sealing door; 8. Spray pipe; 9. Sealing strip; 10. Mud tank fender; 11. Main deck. DETAILED DESCRIPTION
[0019] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.
[0020] Please refer to the attached Figure 1-3, combined with a specific embodiment, it is explained as follows: the mud tank extraction channel side wall structure described in the utility model includes two symmetrically arranged mud tank coamings 1; combined with the existing trailing suction dredger, the top of the mud tank coaming 1 is provided with a mud tank deck 2 located below the main deck 11, the bottom end of the mud tank coaming 1 is provided with a mud tank bottom plate 3, and a mud tank fender 10 is provided between the mud tank deck 2 and the main deck 11; the mud tank coaming 1, the mud tank deck 2, the mud tank bottom plate 3, the mud tank fender 10 and the main deck 11 are the basic structure of a mud tank.
[0021] An inclined bulkhead 4 is installed between the inner side of each mud tank coaming 1 and the top side of the mud tank floor 3. The two bulkheads 4 are symmetrically arranged, forming an inverted isosceles trapezoidal structure with the mud tank floor 3. A mud door 5 is installed on the mud tank floor 3, connected to a mud pumping channel 6, which is connected to the mud unloading equipment. The bulkhead 4 and the mud tank floor 3 form a funnel-shaped bottom silo. In line with existing trailing suction hopper dredgers, the mud door 5 is a hinged structure, and the mud tank is discharged through the mud door 5 and the mud pumping channel 6.
[0022] A cleaning port 401 is provided on the outside of the bulkhead 4. A sealing door 7 is installed at this port, opening and closing vertically. Gravity keeps the sealing door 7 sealed. A water spray pipe 8, corresponding to the cleaning port 401, is installed on the inside of the bulkhead 4 via a support member. A water outlet is provided on the water spray pipe 8 at a position corresponding to the cleaning port 401. The water spray pipe 8 is connected to a high-pressure water supply system via a water pipe, which is equipped with a control valve. In existing trailing suction dredgers, the high-pressure water supply system provides a water source, which works in conjunction with a control valve to control the water spray from the water spray pipe 8.
[0023] The operating principle of the present invention is as follows: After the mud tank discharge operation is completed, the mud door 5 is kept open. The staff activates the high-pressure water supply system. The high-pressure water flows through the water spray pipe 8 and is sprayed out through the water spray port and the cleaning port 401, thereby flushing the sealing door 7. It should be noted that the water pressure does not need to be too high. It is sufficient to keep the sealing door 7 in a semi-open state. It is not necessary to fully open the sealing door 7. At this time, the angle between the sealing door 7 and the bulkhead 4 is an acute angle, that is, the mud tank coaming 1 and the bulkhead 4 form a side wall structure of the tank extraction channel 6, which can guide the high-pressure water flow. Under the action of the sealing door 7, part of the high-pressure water flow will be directly sprayed toward the mud door 5, and the remaining water flow will flow along the above-mentioned side wall structure to the mud door 5, thereby flushing the bulkhead 4 and the mud door 5. The flushing water is finally discharged through the tank extraction channel 6, thereby preventing foreign matter from getting stuck in the rubber strip of the mud door 5.
[0024] In one embodiment, the sealing door 7 is completely positioned within the cleaning port 401, with the top of the sealing door 7 pivotally connected to the inner top of the cleaning port 401. A support plate 402 is provided on the inner wall of the cleaning port 401, positioned below the sealing door 7. The support plate 402 supports the edge of the sealing door 7, thereby ensuring that the outer side of the sealing door 7 is flush with the outer side of the bulkhead 4. This design creates an embedded structure for the sealing door 7, which not only maximizes the flatness of the outer side of the bulkhead 4 but also effectively protects the cleaning port 401.
[0025] In one embodiment, a support plate 402 is arranged along the inner wall of the cleaning port 401 to form a closed frame structure, and a filter screen 403 is installed inside the frame structure. This design is more reasonable. The frame structure can not only better support the sealing door 7, but also prevent foreign matter from clogging the water outlet through the design of the filter screen 403, thereby ensuring the water spraying effect of the water spray pipe 8.
[0026] In one embodiment, a sealing strip 9 corresponding to the support plate 402 is provided at the inner edge of the sealing door 7. The design of the sealing strip 9 can further enhance the sealing effect of the sealing door 7 and prevent foreign matter from clogging the cleaning port 401.
[0027] In one embodiment, a counterweight chamber is provided on the sealing door 7. Through the above design, the overall weight of the sealing door 7 can be controlled, making it convenient for the staff to adjust the water pressure.
[0028] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.
[0029] The terms "upper," "lower," "outer," "inner," and the like, if used in the specification and claims of the present invention and the accompanying drawings, are used to distinguish relative positions and do not necessarily define them. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.
[0030] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A mud tank extraction channel side wall structure, comprising two symmetrically arranged mud tank coamings (1), characterized in that: The top of the mud tank coaming (1) is provided with a mud tank deck (2) located below the main deck (11), and the bottom of the mud tank coaming (1) is provided with a mud tank bottom plate (3); an inclined bulkhead (4) is provided between the inner side of each mud tank coaming (1) and the top side of the mud tank bottom plate (3), and the two bulkheads (4) are arranged symmetrically; a mud door (5) is provided at the mud tank bottom plate (3), the mud door (5) is connected to a tank pumping channel (6), and the tank pumping channel (6) is connected to mud unloading equipment; a cleaning port is provided on the outer side of the bulkhead (4) (401), a sealing door (7) that opens and closes up and down is provided at the cleaning port (401), and under the action of gravity, the sealing door (7) can always close the cleaning port (401); a water spray pipe (8) corresponding to the cleaning port (401) is provided on the inner side of the bulkhead (4) through a support member, and a water spray port connected to the cleaning port (401) is provided at a position corresponding to the cleaning port (401) on the water spray pipe (8); the water spray pipe (8) is connected to a high-pressure water supply system through a water pipe, and a control valve is installed at the water pipe.
2. A mud tank extraction channel side wall structure according to claim 1, characterized in that: The sealing door (7) is completely placed inside the cleaning port (401), and the top end of the sealing door (7) is rotatably connected to the inner top end of the cleaning port (401). A support plate (402) is provided on the inner wall of the cleaning port (401) below the sealing door (7). The support plate (402) is used to support the edge of the sealing door (7), so that the outer side of the sealing door (7) and the outer side of the bulkhead (4) are in the same plane.
3. A mud tank extraction channel side wall structure according to claim 2, characterized in that: The support plate (402) is arranged along the inner wall of the cleaning port (401) to form a closed frame structure.
4. A mud tank extraction channel side wall structure according to claim 3, characterized in that: A filter screen (403) is provided inside the frame structure.
5. The side wall structure of the mud tank extraction channel according to claim 4 is characterized in that: A sealing strip (9) corresponding to the support plate (402) is provided at the inner edge of the sealing door (7).
6. The side wall structure of the mud tank extraction passage according to claim 5, characterized in that: A counterweight chamber is provided on the sealing door (7).
7. A mud tank extraction channel side wall structure according to claim 1 or 6, characterized in that: A mud tank fender (10) is provided between the mud tank deck (2) and the main deck (11).