Ventilation device special for shore discharging pipeline of trailing suction hopper dredger

Abstract

The utility model relates to the technical field of ventilation devices of bank discharging pipelines, in particular to a special ventilation device for a bank discharging pipeline of a trailing suction hopper dredger, which comprises a splash-proof pipe, a mounting bolt, a connecting pipe, a ventilation pipe and a ventilation bent pipe, the ventilation device is modularly designed, and the splash-proof pipe, the connecting pipe, the ventilation pipe and the ventilation bent pipe are fixedly connected together through the mounting bolts, so that when one part is damaged and replaced, the service life of the ventilation device can be prolonged; through the arranged splash-proof pipe, under the action of spoilers arranged in the splash-proof pipe in a staggered mode, the flow blocking and splash-proof effects can be achieved, through the arrangement of the connecting pipe, gas is allowed to freely circulate inside and outside the pipeline, meanwhile, silt can be prevented from leaking through the ventilation device, and through the structural design of the ventilation pipe and the ventilation bent pipe, the ventilation effect is good. And external sundries can be blocked, and the blocking net can be conveniently cleaned or replaced through the design of a detachable structure of the ventilation pipe and the ventilation bent pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of ventilation devices for shore discharge pipelines, specifically to a special ventilation device for shore discharge pipelines of trailing suction hopper dredgers. Background Technology

[0002] A trailing suction hopper dredger is a specialized engineering vessel primarily used for dredging and excavating underwater mud or sand. These vessels are typically equipped with a complex dredging system. During dredging operations, trailing suction hopper dredgers use shore discharge pipelines to transport the dredged mud and sand to the shore or other designated locations. This shore discharge pipeline is an important component of the dredger, and its smooth operation has a crucial impact on the overall operational efficiency and effectiveness of the dredger.

[0003] Based on this, this utility model designs a special ventilation device for the shore discharge pipeline of a trailing suction hopper dredger to ensure the smooth operation of the shore discharge pipeline. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a special ventilation device for the shore discharge pipeline of a trailing suction hopper dredger.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a special ventilation device for the shore discharge pipeline of a trailing suction hopper dredger, comprising a splash guard, mounting bolts, a connecting pipe, a vent pipe, and a ventilation bend. The upper end of the splash guard is fixedly connected to the connecting pipe by mounting bolts. The upper end of the connecting pipe is fixedly connected to the lower end of the vent pipe by mounting bolts. The upper end of the vent pipe is fixedly connected to the ventilation bend by mounting bolts.

[0006] As a preferred embodiment of this utility model, the lower end of the splash guard is provided with a welding end, the upper end of the splash guard is provided with a first connecting flange, the first connecting flange is provided with annular mounting holes, and the interior of the splash guard is provided with symmetrically staggered baffles, the baffles being arranged at an angle downwards.

[0007] As a preferred embodiment of this utility model, a second connecting flange is provided at both the upper and lower ends of the connecting pipe. A first mounting groove is provided on the second connecting flange at the upper end of the connecting pipe. A circular frame is snapped into the first mounting groove. A grid is fixedly connected to the inner side of the circular frame. The grid is in contact with the inner wall of the connecting pipe. A float ball is placed inside the grid.

[0008] As a preferred embodiment of the present invention, the float is composed of a stainless steel sphere and a rubber layer, with the rubber layer wrapping around the outside of the stainless steel sphere.

[0009] As a preferred embodiment of this utility model, a third connecting flange is provided at both the upper and lower ends of the vent pipe. A second mounting groove is provided on the third connecting flange at the upper end of the vent pipe, and a barrier net is inserted into the second mounting groove.

[0010] As a preferred technical solution of this utility model, the barrier net includes a net frame, a wire mesh, and a cross lifting rod. The wire mesh is fixedly connected to the inner side of the net frame, and the cross lifting rod is fixedly connected to the inner side of the net frame above the wire mesh.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model adopts a modular design for the ventilation device. The splash guard, connecting pipe, vent pipe and ventilation bend are fixedly connected together by mounting bolts. When one of the components is damaged, it can be replaced to extend the service life of the ventilation device. The splash guard, under the action of the flow-blocking plates arranged in a staggered manner inside the splash guard, can play the role of flow blocking and splash prevention. The setting of the connecting pipe allows gas to flow freely inside and outside the pipeline, while preventing mud and sand from leaking through the ventilation device.

[0013] 2. When in use, this utility model, through the structural design of the vent pipe and the vent bend, and through the barrier net installed in the second mounting groove at the upper end of the vent pipe, can block external debris and prevent it from entering the interior of the venting device. The detachable structure of the vent pipe and the vent bend facilitates the cleaning or replacement of the barrier net. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of the ventilation device of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall unfolded structure of the ventilation device of this utility model;

[0017] Figure 3 This is a schematic diagram of the vertical cross-section of the splash guard of this utility model;

[0018] Figure 4 This is a schematic diagram of the flow-blocking plate structure of this utility model;

[0019] Figure 5 This is a cross-sectional view of the connecting pipe of this utility model;

[0020] Figure 6This is a schematic cross-sectional view of the float structure of this utility model;

[0021] Figure 7 This is a schematic cross-sectional view of the air pipe structure of this utility model;

[0022] Figure 8 This is a schematic diagram of the barrier net structure of this utility model.

[0023] In the diagram: 1. Splash guard; 101. Welded end; 102. First connecting flange; 103. Baffle plate; 2. Mounting bolt; 3. Connecting pipe; 301. Second connecting flange; 302. First mounting groove; 303. Circular frame; 304. Grille; 305. Float; 3051. Stainless steel sphere; 3052. Rubber layer; 4. Vent pipe; 401. Third connecting flange; 402. Second mounting groove; 403. Barrier net; 4031. Grid frame; 4032. Wire mesh; 4033. Cross lifting rod; 5. Ventilation bend. Detailed Implementation

[0024] The following will refer to the appendix in the embodiments of this utility model. Figure 1-8 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Example

[0026] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The present invention provides the following technical solution: a special ventilation device for the shore discharge pipeline of a trailing suction dredger, comprising a splash guard 1, mounting bolts 2, connecting pipes 3, ventilation pipes 4 and ventilation bends 5. The upper end of the splash guard 1 is fixedly connected to the connecting pipe 3 by the mounting bolts 2. The upper end of the connecting pipe 3 is fixedly connected to the lower end of the ventilation pipe 4 by the mounting bolts 2. The upper end of the ventilation pipe 4 is fixedly connected to the ventilation bend 5 by the mounting bolts 2.

[0027] The lower end of the splash guard 1 is provided with a welding end 101, and the upper end of the splash guard 1 is provided with a first connecting flange 102. The first connecting flange 102 is provided with an annular mounting hole. The interior of the splash guard 1 is symmetrically and alternately arranged with baffle plates 103, which are arranged at an angle downwards.

[0028] The upper and lower ends of the connecting pipe 3 are provided with second connecting flanges 301. The second connecting flange 301 at the upper end of the connecting pipe 3 is provided with a first mounting groove 302. A circular frame 303 is snapped into the first mounting groove 302. A grid 304 is fixedly connected to the inner side of the circular frame 303. The grid 304 is in contact with the inner wall of the connecting pipe 3. A float ball 305 is placed inside the grid 304.

[0029] The float 305 is composed of a stainless steel ball 3051 and a rubber layer 3052, with the rubber layer 3052 wrapping around the outside of the stainless steel ball 3051.

[0030] Through the structural design of the upper connecting pipe 3, the connection between the connecting pipe 3 and the venting pipe 4 can be switched on and off. The venting device can adjust the venting according to the internal pressure change of the discharge pipe, while avoiding the leakage of mud and sand through the venting device. The anti-splash pipe 1 installed at the connection between the venting device and the discharge pipe can play a role in preventing splashing.

[0031] Please refer to Figure 1 , Figure 7 and Figure 8 The upper and lower ends of the vent pipe 4 are provided with a third connecting flange 401. A second mounting groove 402 is provided on the third connecting flange 401 at the upper end of the vent pipe 4. A barrier net 403 is inserted into the second mounting groove 402.

[0032] The barrier net 403 includes a net frame 4031, a wire mesh 4032, and a cross lifting rod 4033. The wire mesh 4032 is fixedly connected to the inner side of the net frame 4031, and the cross lifting rod 4033 is fixedly connected to the inner side of the net frame 4031 above the wire mesh 4032.

[0033] The barrier net 403 provided at the connection between the vent pipe 4 and the vent bend 5 can prevent external debris from entering the interior of the ventilating device and prevent blockage inside the ventilating device. The detachable structure of the vent pipe 4 and the vent bend 5 allows for the cleaning or replacement of the barrier net 403.

[0034] The working principle and usage process of this utility model are as follows: In specific use, the splash guard 1, connecting pipe 3, vent pipe 4 and ventilating bend 5 are fixedly connected in sequence by the mounting bolts 2. Then, the welding end 101 provided at the lower end of the splash guard 1 is cut and welded at a suitable position in the discharge pipeline to weld and fix the ventilating device to the discharge pipeline. This balances the pressure difference inside and outside the pipeline, avoids damage to the pipeline due to excessive or insufficient pressure, and prevents blockages caused by gas accumulation, ensuring unobstructed flow in the discharge pipeline and guaranteeing the transport of sediment in the discharge pipeline. The flow-blocking plates 103 arranged symmetrically inside the splash guard 1 can block and prevent the sediment from splashing. The connecting pipe 3 can prevent the sediment from leaking through the ventilating device and also plays a role in ventilation regulation.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A special venting device for the shore discharge pipeline of a trailing suction hopper dredger, comprising a splash guard (1), mounting bolts (2), a connecting pipe (3), a vent pipe (4), and a venting bend (5), characterized in that: The upper end of the splash guard (1) is fixedly connected to the connecting pipe (3) by the mounting bolt (2). The upper end of the connecting pipe (3) is fixedly connected to the lower end of the vent pipe (4) by the mounting bolt (2). The upper end of the vent pipe (4) is fixedly connected to the vent bend (5) by the mounting bolt (2).

2. The special ventilation device for shore discharge pipeline of a trailing suction hopper dredger according to claim 1, characterized in that: The lower end of the splash guard (1) is provided with a welding end (101), and the upper end of the splash guard (1) is provided with a first connecting flange (102). The first connecting flange (102) has an annular mounting hole. The interior of the splash guard (1) is symmetrically and alternately arranged with baffle plates (103), and the baffle plates (103) are arranged obliquely downward.

3. The special ventilation device for the shore discharge pipeline of a trailing suction hopper dredger according to claim 1, characterized in that: The upper and lower ends of the connecting pipe (3) are provided with second connecting flanges (301). The second connecting flange (301) at the upper end of the connecting pipe (3) is provided with a first mounting groove (302). A circular frame (303) is snapped into the first mounting groove (302). A grid (304) is fixedly connected to the inner side of the circular frame (303). The grid (304) is in contact with the inner wall of the connecting pipe (3). A float (305) is placed in the grid (304).

4. A special ventilation device for shore discharge pipeline of a trailing suction hopper dredger according to claim 3, characterized in that: The float (305) is composed of a stainless steel ball (3051) and a rubber layer (3052), with the rubber layer (3052) wrapping around the outside of the stainless steel ball (3051).

5. A special ventilation device for shore discharge pipeline of a trailing suction hopper dredger according to claim 1, characterized in that: The upper and lower ends of the vent pipe (4) are provided with a third connecting flange (401). A second mounting groove (402) is opened on the third connecting flange (401) at the upper end of the vent pipe (4). A barrier net (403) is inserted into the second mounting groove (402).

6. A special ventilation device for shore discharge pipeline of a trailing suction hopper dredger according to claim 5, characterized in that: The barrier net (403) includes a net frame (4031), a wire mesh (4032), and a cross lifting rod (4033). The wire mesh (4032) is fixedly connected to the inner side of the net frame (4031), and the cross lifting rod (4033) is fixedly connected to the inner side of the net frame (4031) above the wire mesh (4032).

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