Pipeline gate valve system for slurry delivery in dredging hydraulic filling projects

Abstract

The utility model relates to the technical field of engineering construction, and specifically discloses a pipeline gate valve system for slurry conveying in dredging and hydraulic filling engineering, which comprises a power source, a water pump, a water tank and at least two gate valves, the plurality of gate valves are installed in each path of the sludge discharge pipeline, each gate valve is connected with the same power source, the water outlet in the water tank is connected with the water pump, the water pump is connected with the bottom pipeline of the plurality of gate valves through the water inlet belt, and the water outlet end of the plurality of gate valves is connected with the water tank through the water return belt. Wherein, the water pump is an emergency fire pump, and the power source is a hydraulic power source. The pipeline gate valve for slurry conveying in dredging and hydraulic filling engineering can draw water by the water pump and introduce external water source through the water belt to achieve the effect of flushing the sand discharge channel of the gate valve base, the conversion of the gate valve can be completed under the normal construction condition of the ship, the washing water discharged can be returned to the sedimentation tank of the water tank through the water belt, and the water in the water tank can be recycled after sufficient sedimentation.

Description

Technical Field

[0001] This utility model relates to the field of engineering construction technology, and in particular to a pipeline gate valve system for conveying mud in dredging and reclamation projects. Background Technology

[0002] In dredging and reclamation projects, sludge discharge pipelines play a crucial role in transporting sludge from construction vessels to the reclamation area. To achieve precise control and proper distribution of sludge flow, installing reliable gate valve devices on the sludge discharge pipelines is essential.

[0003] Traditional hydraulic gate valves have revealed numerous problems in practical use. First, each hydraulic gate valve requires an independent power system, resulting in resource waste. Their excessive weight makes them difficult to maneuver, especially in reclamation areas where excavators are limited by their lifting capacity. Second, switching hydraulic gate valves requires the main vessel to flush the sand discharge channel, leading to wasted energy. To prevent the gate from being jammed by rocks, silt, etc., the sand discharge channel must be kept clean when closing the valve, often using the ship to blow clean water to prevent incomplete valve closure and leakage.

[0004] Therefore, it is necessary to design a pipeline hydraulic gate valve device that can effectively reduce the weight of the gate valve, utilize an external water source for flushing, and solve the problem of resource waste, thereby improving the efficiency of ship construction operations. Utility Model Content

[0005] The purpose of this utility model is to provide a pipeline gate valve system for mud transportation in dredging and reclamation projects. It designs and manufactures a power-separated lightweight single-cylinder pipeline gate valve device that can recycle external water sources for flushing, achieving simple operation, good sealing performance, and normal ship construction during the conversion process, thereby solving the problems encountered in the above-mentioned background technology.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A pipeline gate valve system for conveying slurry in dredging and reclamation projects includes a power source, a water pump, a water tank, and at least two gate valves. Multiple gate valves are installed along various paths of the slurry discharge pipeline. Each gate valve is connected to the same power source. The outlet of the water tank is connected to the water pump. The water pump is connected to the bottom pipelines of the multiple gate valves via inlet hoses. The outlets of the multiple gate valves are connected to the water tank via return hoses. The water pump is an emergency fire pump, and the power source is a hydraulic power source.

[0007] In the above scheme, the multiple gate valves include a first gate valve and a second gate valve. The inlet end of the first gate valve and the inlet end of the second gate valve are connected to the inlet belt, and the outlet end of the first gate valve and the outlet end of the second gate valve are connected to the return belt.

[0008] In the above scheme, the main body of each gate valve includes a gate valve housing. A baffle is installed in the bottom water passage cavity of the gate valve housing. A hydraulic lifting cylinder is provided on the top of the gate valve housing and is pulsatorically connected to the baffle. The hydraulic lifting cylinder is electrically connected to a power source. The power source simultaneously drives the baffles of the first gate valve and the second gate valve to move. One baffle moves downward to disconnect the water passages at both ends, and the other baffle moves upward to connect the water passages at both ends.

[0009] In the above scheme, the water tank is equipped with a sedimentation tank and a purified water tank. The top of the sedimentation tank is connected to the purified water tank via a connecting pipe, and the bottom of the sedimentation tank is equipped with a sludge discharge port. The purified water tank is connected to the inlet hose via a water pump. The water pump draws water from the drain port at the bottom of the purified water tank through the inlet hose, and then enters the gate valve through a flange interface connected to one end of the gate valve base to continuously flush the sand discharge channel. The flushing water is discharged from the flange interface at the other end of the gate valve and returns to the sedimentation tank of the water tank through a return hose.

[0010] Compared with existing technologies, the beneficial effects of this utility model are as follows: This gate valve system, through its external flushing structure design, continuously flushes the sand discharge channel at the bottom of the gate seat by introducing an external water source, effectively solving the problem of gate valves failing to seal properly due to high-concentration sediment deposition during construction. By connecting an external power source, two gate valves can be driven simultaneously, significantly reducing their weight and solving the problems of difficult allocation and resource waste. The lightweight single-cylinder design and external flushing structure not only reduce equipment weight but also improve the reliability of gate valve switching during high-concentration sediment dredging by utilizing water flow. The flushing water discharged from the sand discharge channel flows back to the sedimentation tank of the water tank, achieving water recycling. Compared with traditional hydraulic gate valves, this system allows for rapid cleaning of sediment at the gate valves during normal ship construction, shortening ship downtime and significantly improving the continuous operation capability of dredging and reclamation operations, potentially driving the development of dredging equipment towards higher efficiency. Attached Figure Description

[0011] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is a schematic diagram of the system layout of this utility model; Figure 2 This is a schematic diagram of the external structure of the gate valve in this utility model; Figure 3 This is a schematic diagram of the internal structure of the gate valve in this utility model.

[0012] The following numbers are labeled in the diagram: 10-First gate valve; 11-Power source; 12-Second gate valve; 13-Water pump; 14-Water tank; 15-Inlet hose; 16-Return hose; 17-Sludge discharge port; 18-Gate valve housing; 19-Hydraulic lifting cylinder; 20-Baffle. Detailed Implementation

[0013] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the utility model will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of this utility model, and therefore only show the relevant components of this utility model.

[0014] Based on the technical solution of this utility model, without changing the essential spirit of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction of the technical solution of this utility model.

[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0016] Example 1, such as Figure 1 As shown, a pipeline gate valve system for mud transportation in dredging and reclamation projects includes a power source 11, a water pump 13, a water tank 14, and at least two gate valves. Multiple gate valves are installed along various paths of the mud discharge pipeline, where water and mud flush the gate valves. Unlike existing technologies, each gate valve is connected to the same power source 11. An external power source 11 connects to both gate valves, simultaneously driving the hydraulic lifting cylinders 19 of both gate valves, allowing them to be in open and closed states respectively. Furthermore, by sharing the same power source 11, the overall weight of the gate valves is reduced, solving the problems of difficult allocation and resource waste.

[0017] The outlet of water tank 14 is connected to water pump 13. Water pump 13 is connected to the bottom pipes of multiple gate valves via inlet hose 15. The outlets of the multiple gate valves are connected to water tank 14 via return hose 16, thus forming a circulating water flow, saving water resources and achieving the effect of water recycling in water tank 14. When two gate valves are used, the inlet hose 15 can be installed with a T-junction on a main inlet pipe to split it into two branch inlet pipes, thereby connecting the two gate valves. The return hose 16 also uses two outlet pipes to connect the two gate valves, which are then merged together via a T-junction, enter the main outlet pipe, and then flow into water tank 14.

[0018] After the water pump 13 is started, it can draw water from the water tank 14 and flush the sand discharge channel at the bottom of the gate seat through the water inlet hose 15, thus discharging the accumulated silt. In implementation, the water pump 13 is an emergency fire pump, and the power source 11 is a hydraulic power source.

[0019] Example 2, based on Example 1, includes multiple gate valves including a first gate valve 10 and a second gate valve 12. The inlet end of the first gate valve 10 and the inlet end of the second gate valve 12 are connected to the inlet belt 15, and the outlet end of the first gate valve 10 and the outlet end of the second gate valve 12 are connected to the return belt 16.

[0020] Please see Figure 2 and Figure 3 Each gate valve body includes a gate valve housing 18. A baffle 20 is installed in the water passage cavity of the gate seat at the bottom of the gate valve housing 18. A hydraulic lifting cylinder 19, which is pulsatorically connected to the baffle 20, is located at the top of the gate valve housing 18. The hydraulic lifting cylinder 19 is electrically connected to a power source 11. This type of gate valve can be custom-made with different pipe diameters by purchasing from external suppliers and then installed on site, or it can be installed with a sealed connection through a transition pipe.

[0021] An external power source 11 is connected to two gate valves. When in use, the external power source 11 is started, and the power source 11 simultaneously drives the baffles 20 of the first gate valve 10 and the second gate valve 12 to move. One baffle 20 moves downward to disconnect the water supply lines at both ends, and the other baffle 20 moves upward to connect the water supply lines at both ends. This allows the two gate valves to smoothly achieve the effect of flushing the sand discharge channel at the bottom of the gate seat.

[0022] Example 3, based on Example 1, includes a sedimentation tank and a clean water tank in water tank 14. The top of the sedimentation tank is connected to the clean water tank via a connecting pipe. After sedimentation, the clean water remains on the upper layer, while the sludge settles to the lower layer. The clean water then enters the clean water tank through the connecting pipe. A sludge discharge port 17 is installed at the bottom of the sedimentation tank for discharging the sludge from the bottom.

[0023] The clean water tank is connected to the inlet hose 15 via a water pump 13, which delivers clean water to the gate valve. The water pump 13 draws water from the drain outlet at the bottom of the clean water tank 14 via the inlet hose 15, and then enters the gate valve through a flange connection at one end of the gate valve base, continuously flushing the sand discharge channel. Finally, the flushing water exits from the flange connection at the other end of the gate valve and returns to the sedimentation tank of the water tank 14 via the return hose 16 for recycling.

[0024] During operation, when in use, the external power source 11 and water pump 13 are started, which simultaneously drives the hydraulic lifting cylinders 19 of the two gate valves, causing the baffles 20 to move. The two baffles 20 move up and down in opposite directions, one opening and the other closing. After a gate valve is initially closed, the water pump 13 is started. The water pump 13 draws water from the water tank 14 through the water inlet belt 15 and continuously flushes the sand discharge channel at the bottom of the gate seat of the closed gate valve, cleaning up the deposited mud and sand. This is to prevent the baffles 20 from getting stuck and unable to move up or close tightly when switching gate valves.

[0025] Then open the flushed gate valve and close the other gate valve to flush and clean it. After the gate valve switching is complete, turn off the external power source 11 and water pump 13. The external power source 11 is connected to both gate valves, which can simultaneously drive the hydraulic lifting cylinders 19 of both gate valves, allowing the two gate valves to be in the open and closed states respectively.

[0026] After use, the flushing water discharged from the sand discharge channel returns to the sedimentation tank of the water tank 14 through the return water belt 16. After the silt has settled sufficiently, the clear water from the top of the sedimentation tank is drawn into the clean water tank through the connecting pipe, so that it can be reused to flush the sand discharge channel, achieving a recycling effect. The sludge discharge port 17 at the bottom of the sedimentation tank is opened periodically to discharge the silt settled in the sedimentation tank from the water tank.

[0027] This invention designs and manufactures a power-separated pipeline gate valve system that can recycle external water for flushing, achieving simple operation, good sealing, and allowing the vessel to continue normal operations during the switching process. This invention relates to a pipeline gate valve system for mud transport in dredging and reclamation projects. It allows the gate valve base's sand discharge channel to be flushed by external water, enabling the gate valve to switch positions while the vessel is operating normally. Furthermore, the use of a single power source 11 to drive two gate valves effectively reduces the weight of the gate valves.

[0028] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. These undisclosed elements are all prior art known to those skilled in the art.

[0029] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A pipeline gate valve system for conveying mud in dredging and reclamation projects, characterized in that: It includes a power source (11), a water pump (13), a water tank (14) and at least two gate valves. Multiple gate valves are installed in various paths of the sludge discharge pipeline. Each gate valve is connected to the same power source (11). The outlet of the water tank (14) is connected to the water pump (13). The water pump (13) is connected to the bottom pipeline of the multiple gate valves through an inlet hose (15). The outlet of the multiple gate valves is connected to the water tank (14) through a return hose (16).

2. A pipeline gate valve system for mud transportation in dredging and reclamation projects according to claim 1, characterized in that: The plurality of gate valves include a first gate valve (10) and a second gate valve (12). The inlet end of the first gate valve (10) and the inlet end of the second gate valve (12) are connected to the inlet belt (15), and the outlet end of the first gate valve (10) and the outlet end of the second gate valve (12) are connected to the return belt (16).

3. A pipeline gate valve system for mud transportation in dredging and reclamation projects according to claim 2, characterized in that: Each gate valve body includes a gate valve housing (18), a baffle (20) is installed in the bottom water passage cavity of the gate valve housing (18), and a hydraulic lifting cylinder (19) is provided on the top of the gate valve housing (18) and is connected to the baffle (20) in a transmission manner. The hydraulic lifting cylinder (19) is electrically connected to the power source (11).

4. A pipeline gate valve system for mud transportation in dredging and reclamation projects according to claim 3, characterized in that: The power source (11) simultaneously drives the baffles (20) of the first gate valve (10) and the second gate valve (12) to move. One baffle (20) moves downward to disconnect the water pipes at both ends, and the other baffle (20) moves upward to connect the water pipes at both ends.

5. A pipeline gate valve system for mud transportation in dredging and reclamation projects according to claim 1, characterized in that: The water tank (14) is equipped with a sedimentation tank and a clean water tank. The top of the sedimentation tank is connected to the clean water tank through a connecting pipe. The bottom of the sedimentation tank is equipped with a sludge discharge port (17). The clean water tank is connected to the water inlet belt (15) through a water pump (13).

6. A pipeline gate valve system for mud transportation in dredging and reclamation projects according to claim 5, characterized in that: The water pump (13) draws water from the bottom drain of the clean water tank of the water tank (14) through the inlet belt (15), and enters the gate valve after being connected to the flange interface at one end of the gate valve base to continuously flush the sand discharge channel; the flushing water is discharged from the flange interface at the other end of the gate valve and returns to the sedimentation tank of the water tank (14) through the return water belt (16).

7. A pipeline gate valve system for mud transportation in dredging and reclamation projects according to claim 1, characterized in that: The water pump (13) is an emergency fire pump, and the power source (11) is a hydraulic power source.

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