Ballast system for ship and ship

Abstract

The invention relates to the technical field of ships, and discloses a ballast system for a ship and the ship, the ballast system for the ship comprises a water inlet main pipe, a water outlet main pipe, a pressure-resistant water tank, a first three-way valve, a second three-way valve and a pump body, the first three-way valve is provided with a first opening, a second opening and a third opening; the second three-way valve is provided with a fourth opening, a fifth opening and a sixth opening, the first opening is selectively communicated with the second opening or the third opening, and the fourth opening is selectively communicated with the fifth opening or the sixth opening; the pump body is provided with a first end and a second end, the first end communicates with the first opening, and the second end communicates with the fourth opening; wherein the second opening is communicated with the first water outlet, the third opening is communicated with the third water outlet, the fifth opening is communicated with the third water inlet, and the sixth opening is communicated with the second water inlet. The technical problems that in the operation steering process of a switching pump, a ballast system needs to be shut down, and restarting is slow are solved.

Description

Technical Field

[0001] The present application relates to the technical field of ships, and in particular to a ballast system for ships and a ship. Background Art

[0002] The ship ballast system is an important part of a ship. By injecting or discharging ballast water into or from a pressure-resistant water tank, parameters such as the draft, heel, trim, and height of the center of gravity of the ship are adjusted to ensure that the ship can sail safely and stably under various working conditions. With the rapid development of the global shipping industry, the scale and type of ships are constantly increasing, and higher requirements are also put forward for the performance and functions of the ship ballast system.

[0003] In related technologies, valves and pumps are used to control the inflow or outflow of water in the pressure-resistant water tank. When controlling the inflow or outflow of water in the pressure-resistant water tank, it is necessary to switch the running direction of the pump. However, during the process of switching the running direction of the pump, the ballast system needs to stop and has a slow restart. Summary of the Invention

[0004] The present application provides a ballast system for ships and a ship, which solves the technical problem that the ballast system needs to stop and has a slow restart during the process of switching the running direction of the pump.

[0005] To achieve the above object, the main technical solutions adopted in the present application include: In a first aspect, an embodiment of the present application provides a ballast system for a ship, including an inlet main pipe, an outlet main pipe, a pressure-resistant water tank, a first three-way valve, a second three-way valve, and a pump body. The inlet main pipe has a first inlet and a first outlet; the outlet main pipe has a second inlet and a second outlet; the pressure-resistant water tank has a third inlet and a third outlet; the first three-way valve has a first opening, a second opening, and a third opening, and the second three-way valve has a fourth opening, a fifth opening, and a sixth opening. The first opening can be selectively connected to the second opening or the third opening, and the fourth opening can be selectively connected to the fifth opening or the sixth opening; the pump body has a first end and a second end, the first end is connected to the first opening, and the second end is connected to the fourth opening; wherein, the second opening is connected to the first outlet, the third opening is connected to the third outlet, the fifth opening is connected to the third inlet, and the sixth opening is connected to the second inlet.

[0006] In the ballast system for a ship proposed by the embodiment of the present application, the first opening can be selectively connected to the second opening or the third opening, and the fourth opening can be selectively connected to the fifth opening or the sixth opening. The pressure-resistant water tank can quickly fill with water or discharge water, so that the ballast system can quickly and efficiently adjust the ballast state of the ship, improve the adjustment efficiency of ship ballast, enable the ship to maintain good balance and stability under different loading conditions and sailing environments, and thus improve the sailing safety of the ship.

[0007] Optionally, the first three-way valve has a first water inlet state and a first water outlet state. When the first three-way valve is in the first water inlet state, the first opening communicates with the second opening. When the first three-way valve is in the first water outlet state, the first opening communicates with the third opening. When switching between the first water inlet state and the first water outlet state, the first opening communicates with both the second opening and the third opening. The second three-way valve has a second water inlet state and a second water outlet state. When the second three-way valve is in the second water inlet state, the fourth opening communicates with the fifth opening. When the second three-way valve is in the second water outlet state, the fourth opening communicates with the sixth opening. When switching between the second water inlet state and the second water outlet state, the fourth opening communicates with both the fifth opening and the sixth opening.

[0008] When switching between the first water inlet state and the first water outlet state, the first opening communicates with both the second opening and the third opening. When switching between the second water inlet state and the second water outlet state, the fourth opening communicates with both the fifth opening and the sixth opening. In this way, at the moment of switching, the communication of the three openings of the first three-way valve and the three openings of the second three-way valve enables a transition channel for the water flow, allowing the water flow to smoothly switch from one flow direction to another, ensuring the stability and reliability of the ballast system operation, reducing the impact or damage to the system equipment, and extending the service life of the equipment.

[0009] Optionally, a first electric ball valve is provided between the first opening and the first end, and a second electric ball valve is provided between the second end and the fourth opening.

[0010] The first electric ball valve and the second electric ball valve can cooperate with the first three-way valve and the second three-way valve, respond quickly and change the water flow rate, enabling the ballast system to flexibly switch between different working modes such as water inlet and drainage and adapt to the requirements of different draft levels of the ship, improving the operation efficiency and adaptability of the ballast system.

[0011] Optionally, the ballast system further includes a first flowmeter, a second flowmeter, and a third flowmeter. The first flowmeter is provided between the first electric ball valve and the first end, the second flowmeter is provided between the fifth opening and the third water inlet, and the third flowmeter is provided between the third opening and the third water outlet.

[0012] According to the flow rate data fed back by the first flowmeter, the second flowmeter, and the third flowmeter, the first electric ball valve and the second electric ball valve can be accurately adjusted, thereby achieving precise control of the flow rate of the ballast system.

[0013] Optionally, the ballast system further includes a first filter and a second filter. The first filter is provided between the first opening and the first electric ball valve, and the second filter is provided between the first water inlet and the first water outlet.

[0014] A first filter and a second filter are provided in the ballast system, which can effectively reduce the impact of impurities on the ballast system, reduce the occurrence frequency of faults in the ballast system, improve the stability and reliability of the operation of the ballast system, and ensure that the ballast system can work properly at any time during the navigation of the ship.

[0015] Optionally, the ballast system further includes a first stop valve and a second stop valve. The first stop valve is arranged between the third opening and the third water outlet, and the second stop valve is arranged between the fifth opening and the third water inlet.

[0016] When some parts or components of the ballast system fail and need to be repaired, the first stop valve and the second stop valve can be closed to isolate the pressure-resistant water tank from other parts of the ballast system, without having to drain the water in the entire pressure-resistant water tank, which is convenient for maintenance personnel to repair the ballast system and reduces the maintenance cost and maintenance time.

[0017] Optionally, the ballast system further includes a check valve. The check valve is arranged between the second end and the fourth opening.

[0018] The check valve is arranged between the second end and the fourth opening. The check valve can prevent the water flow from flowing back from the fourth opening to the second end of the pump body, which can effectively avoid problems such as pressure imbalance and equipment damage in the ballast system caused by water flow back.

[0019] Optionally, the ballast system further includes a third electric ball valve and a power unit. The third electric ball valve is located between the first opening and the fourth opening. The power unit is used to store liquid carbon dioxide. The power unit is connected to the pressure-resistant water tank. When both the first three-way valve and the second three-way valve are in the water outlet state, the power unit is communicated with the pressure-resistant water tank to release supercritical carbon dioxide into the pressure-resistant water tank.

[0020] The power unit is communicated with the pressure-resistant water tank to release supercritical carbon dioxide into the pressure-resistant water tank, which can enable the ship to quickly adjust the ballast state, adapt to different navigation conditions, quickly change the draft or adjust the balance state of the ship.

[0021] Optionally, the power unit includes a storage chamber and an excitation member. The storage chamber is used to store liquid carbon dioxide. The excitation member is arranged in the storage chamber. The excitation member is configured to receive a control signal and generate heat, so that the liquid carbon dioxide is converted into high-pressure supercritical carbon dioxide after absorbing heat.

[0022] The excitation member is configured to receive a control signal and generate heat, so that the liquid carbon dioxide is converted into high-pressure supercritical carbon dioxide after absorbing heat. Since the pressure increases during the process of liquid carbon dioxide changing into the supercritical state, this can reduce the dependence on external energy sources, discharge the water in the ballast tank, improve the operating efficiency of the ballast system, and expand the application range of the ballast system.

[0023] In a second aspect, an embodiment of the present application provides a ship, including the ballast system for a ship according to any one of the embodiments of the present application.

[0024] For the ship provided by the embodiment of the present application, the first opening can selectively communicate with the second opening or the third opening, and the fourth opening can selectively communicate with the fifth opening or the sixth opening. The pressure-resistant water tank can quickly fill with water or discharge water, so that the ballast system can quickly and efficiently adjust the ballast state of the ship, improve the adjustment efficiency of the ship's ballast, enable the ship to maintain good balance and stability under different loading conditions and navigation environments, and thus improve the navigation safety of the ship. Description of the Drawings

[0025] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic structural diagram of the ballast system provided by the embodiment of the present application; Figure 2 It is a schematic structural diagram of the ballast system provided by another embodiment of the present application; Figure 3 It is a cross-sectional view of the first three-way valve provided by the embodiment of the present application; Figure 4 It is a schematic structural diagram of the second three-way valve provided by the embodiment of the present application; Figure 5 It is a schematic structural diagram of the ship provided by the embodiment of the present application.

[0027]

Description of the Reference Numerals

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0029] Unless otherwise defined, all technical and scientific terms used in the present application have the same meanings as those commonly understood by those skilled in the technical field to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present application or the above drawings are used to distinguish different objects and are not used to describe a specific order or primary-secondary relationship.

[0030] Referring to "embodiments" in the present application means that specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described in the present application can be combined with other embodiments.

[0031] In the description of this application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "attachment" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0032] The term "and / or" in this application is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally represents an "or" relationship between the front and back associated objects.

[0033] The term "multiple" appearing in this application refers to two or more (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0034] The ship ballast system is an important part of a ship. By injecting or discharging ballast water into the pressure-resistant water tank, parameters such as the draft, list, trim, and height of the center of gravity of the ship are adjusted to ensure that the ship can sail safely and stably under various working conditions. With the rapid development of the global shipping industry, the scale and type of ships are constantly increasing, and higher requirements are also put forward for the performance and functions of the ship ballast system.

[0035] In the related art, valves and pumps are used to control the inflow or outflow of water in the pressure-resistant water tank. When controlling the inflow or outflow of water in the pressure-resistant water tank, it is necessary to switch the running direction of the pump. However, the switching of the running direction of the pump not only increases the complexity and difficulty of operation, but also frequent switching easily causes the mechanical components of the pump to wear out rapidly, reducing the service life and reliability of the pump and increasing the equipment maintenance cost.

[0036] During the process of switching the running direction of the pump, the ballast system needs to stop running, and the restart is slow, which affects the precise control of the water volume in the pressure-resistant water tank and is difficult to quickly and accurately reach the required water volume regulation target. In situations where the ship encounters an emergency sea condition and needs to quickly adjust its attitude, etc., the best regulation opportunity may be delayed, threatening the safe and stable operation of the waterborne equipment. In addition, the existing control method lacks an effective monitoring and protection mechanism for the process of switching the running direction of the pump. Once a failure occurs in the direction switching, it is not easy to detect and handle in time, which may cause more serious system problems.

[0037] In view of this, an embodiment of the present application provides a ballast system for a ship and a ship. The ballast system includes an inlet main pipe, an outlet main pipe, a pressure-resistant water tank, a first three-way valve, a second three-way valve, and a pump body. The inlet main pipe has a first inlet and a first outlet; the outlet main pipe has a second inlet and a second outlet; the pressure-resistant water tank has a third inlet and a third outlet; the first three-way valve has a first opening, a second opening, and a third opening, and the second three-way valve has a fourth opening, a fifth opening, and a sixth opening. The first opening can be selectively connected to the second opening or the third opening, and the fourth opening can be selectively connected to the fifth opening or the sixth opening; the pump body has a first end and a second end, the first end is connected to the first opening, and the second end is connected to the fourth opening; wherein, the second opening is connected to the first outlet, the third opening is connected to the third outlet, the fifth opening is connected to the third inlet, and the sixth opening is connected to the second inlet.

[0038] In the above solution, the first opening can be selectively connected to the second opening or the third opening, and the fourth opening can be selectively connected to the fifth opening or the sixth opening. The pressure-resistant water tank can quickly fill with water or discharge water, so that the ballast system can quickly and efficiently adjust the ballast state of the ship, improve the adjustment efficiency of ship ballast, and enable the ship to maintain good balance and stability under different loading conditions and navigation environments, thereby improving the navigation safety of the ship.

[0039] For the convenience of description, the following embodiments will be described by taking the ballast system for a ship according to an embodiment of the present application as an example.

[0040] Figure 1 It is a schematic structural diagram of the ballast system provided by the embodiment of the present application; Figure 2 It is a schematic structural diagram of the ballast system provided by another embodiment of the present application; Figure 3 It is a cross-sectional view of the first three-way valve provided by the embodiment of the present application; Figure 4 It is a schematic structural diagram of the second three-way valve provided by the embodiment of the present application; Figure 5 It is a schematic structural diagram of the ship provided by the embodiment of the present application.

[0041] Please refer to Figure 1, in this embodiment, the ballast system 100 for a ship includes an inlet main pipe 110, an outlet main pipe 120, a pressure-resistant water tank 130, a first three-way valve 140, a second three-way valve 150, and a pump body 160. The inlet main pipe 110 has a first inlet 111 and a first outlet 112; the outlet main pipe 120 has a second inlet 121 and a second outlet 122; the pressure-resistant water tank 130 has a third inlet 131 and a third outlet 132; the first three-way valve 140 has a first opening 141, a second opening 142, and a third opening 143, and the second three-way valve 150 has a fourth opening 151, a fifth opening 152, and a sixth opening 153. The first opening 141 can be selectively connected to the second opening 142 or the third opening 143, and the fourth opening 151 can be selectively connected to the fifth opening 152 or the sixth opening 153; the pump body 160 has a first end 161 and a second end 162, the first end 161 is connected to the first opening 141, and the second end 162 is connected to the fourth opening 151; wherein, the second opening 142 is connected to the first outlet 112, the third opening 143 is connected to the third outlet 132, the fifth opening 152 is connected to the third inlet 131, and the sixth opening 153 is connected to the second inlet 121.

[0042] As its name implies, for the inlet main pipe 110, external water flows, such as seawater, lake water, or river water, etc., can enter the inlet main pipe 110 from the first inlet 111 of the inlet main pipe 110. The inlet main pipe 110 has a first inlet 111 and a first outlet 112, and the first inlet 111 is connected to the first outlet 112. Water can enter the pressure-resistant water tank 130 from the first outlet 112. The water in the pressure-resistant water tank 130 can flow into the outlet main pipe 120 from the second inlet 121 of the outlet main pipe 120, and then flow out from the second outlet 122 of the outlet main pipe 120.

[0043] The first opening 141 of the first three-way valve 140 can be selectively connected to the second opening 142 and the third opening 143. Exemplarily, water can flow from the first opening 141 into the second opening 142, water can flow from the first opening 141 into the third opening 143, water can also flow from the second opening 142 into the first opening 141, and water can also flow from the third opening 143 into the first opening 141. The fourth opening 151 of the second three-way valve 150 can be selectively connected to the fifth opening 152 and the sixth opening 153. For example, water can flow from the fourth opening 151 into the fifth opening 152, water can also flow from the fifth opening 152 into the fourth opening 151, water can flow from the fourth opening 151 into the sixth opening 153, and water can also flow from the sixth opening 153 into the fifth opening 152.

[0044] The pump body 160 has a first end 161 and a second end 162. Exemplarily, the first end 161 can be configured as the suction end, and the second end 162 can be configured as the discharge end. The pump body 160 can suck the water communicated with the first end 161 and then discharge it from the second end 162.

[0045] When the ballast system 100 needs to intake water, the first opening 141 and the second opening 142 of the first three-way valve 140 are communicated, and the fourth opening 151 and the fifth opening 152 of the second three-way valve 150 are communicated. The external water flow enters the second opening 142 from the water inlet main pipe 110, flows from the first opening 141 to the second opening 142, flows from the second opening 142 to the first end 161, then flows from the first end 161 to the second end 162, flows from the second end 162 to the fourth opening 151, flows from the fourth opening 151 to the fifth opening 152, and then flows from the fifth opening 152 to the third water inlet 131 of the pressure-resistant water tank 130. Thus, the pressure-resistant water tank 130 completes the water intake cycle until the preset target is reached.

[0046] When the ballast system 100 needs to discharge water, the first opening 141 and the third opening 143 of the first three-way valve 140 are communicated, and the fourth opening 151 and the sixth opening 153 of the second three-way valve 150 are communicated. The water in the pressure-resistant water tank 130 flows from the third water outlet 132 to the third opening 143, then flows from the third opening 143 to the first opening 141, then flows from the first opening 141 to the first end 161 of the pump body 160, then flows from the first end 161 to the second end 162, flows from the second end 162 to the fourth opening 151, flows from the fourth opening 151 to the sixth opening 153, and then flows from the sixth opening 153 to the first water inlet 111 of the water outlet main pipe 120, and then exits the water outlet main pipe 120 from the first water outlet 112.

[0047] In this way, by changing the communication state of the valve openings of the first three-way valve 140 and the second three-way valve 150 to change the water flow direction, the drainage of the pressure-resistant water tank 130 and the water intake of the pressure-resistant water tank 130 can be realized without switching the rotation direction of the pump body 160, reducing the operation difficulty, reducing the wear of the pump body 160, and prolonging the service life and reliability of the equipment.

[0048] When the ballast system 100 does not need to intake or discharge water, the first opening 141 and the third opening 143 of the first three-way valve 140 are in communication, and the fourth opening 151 and the fifth opening 152 of the second three-way valve 150 are in communication. The water in the pressure-resistant water tank 130 flows out of the pressure-resistant water tank 130 from the third water outlet 132, then flows to the third opening 143, from the third opening 143 to the first end 161, from the first end 161 to the second end 162, from the second end 162 to the fourth opening 151, from the fourth opening 151 to the fifth opening 152, from the fifth opening 152 to the third water inlet 131, and then enters the interior of the pressure-resistant water tank 130. The water in the pressure-resistant water tank 130 makes a reciprocating motion in this loop, and the pump body 160 can continue to operate without stopping. When the pressure-resistant water tank 130 needs to intake or discharge water, the valves of the first three-way valve 140 and the second three-way valve 150 can be switched. That is to say, according to the need of the pressure-resistant water tank 130 to intake or discharge water, the first opening 141 is selectively communicated with the second opening 142 or the third opening 143, and the fourth opening 151 is selectively communicated with the fifth opening 152 or the sixth opening 153. The pressure-resistant water tank 130 can intake or discharge water quickly, so that the ballast system 100 can quickly and efficiently adjust the ballast state of the ship 1000, improve the adjustment efficiency of the ballast of the ship 1000, enable the ship 1000 to maintain good balance and stability under different loading conditions and navigation environments, and thus improve the navigation safety of the ship 1000. In addition, the first three-way valve 140 and the second three-way valve 150 are used to inject water and drain water into the pressure-resistant water tank 130, so that the ballast system 100 can be applicable to different loading conditions and environmental requirements, and the applicable range of the ballast system 100 is expanded.

[0049] Please refer to Figure 1 , in this embodiment, the first three-way valve 140 has a first water intake state and a first water discharge state. When the first three-way valve 140 is in the first water intake state, the first opening 141 is in communication with the second opening 142. When the first three-way valve 140 is in the first water discharge state, the first opening 141 is in communication with the third opening 143. When the first water intake state and the first water discharge state are switched, the first opening 141 is in communication with both the second opening 142 and the third opening 143; the second three-way valve 150 has a second water intake state and a second water discharge state. When the second three-way valve 150 is in the second water intake state, the fourth opening 151 is in communication with the fifth opening 152. When the second three-way valve 150 is in the water discharge state, the fourth opening 151 is in communication with the sixth opening 153. When the second water intake state and the second water discharge state are switched, the fourth opening 151 is in communication with both the fifth opening 152 and the sixth opening 153.

[0050] When the pressure-resistant water tank 130 is in the water inlet state, the first three-way valve 140 is in the first water inlet state. At this time, the first opening 141 and the second opening 142 of the first three-way valve 140 are connected. The second three-way valve 150 is in the second water inlet state. At this time, the fourth opening 151 and the fifth opening 152 of the second three-way valve 150 are connected. When the pressure-resistant water tank 130 is in the water outlet state, the first three-way valve 140 is in the first water outlet state, and the first opening 141 and the third opening 143 are connected. The second three-way valve 150 is in the second water outlet state, and the fourth opening 151 and the sixth opening 153 are connected. According to the needs of the ship 1000, the ballast system 100 can either intake water or discharge water. When the ballast system 100 switches from the water inlet state to the water outlet state or from the water outlet state to the water inlet state, the valve core rotates. As a result, in the first three-way valve 140, the connection between the first opening 141 and the second opening 142 is switched to the connection between the first opening 141 and the third opening 143, or the connection between the first opening 141 and the third opening 143 is switched to the connection between the first opening 141 and the second opening 142. In the second three-way valve 150, the connection between the fourth opening 151 and the fifth opening 152 is switched to the connection between the fifth opening 152 and the sixth opening 153, or the connection between the fifth opening 152 and the sixth opening 153 is switched to the connection between the fourth opening 151 and the fifth opening 152. During the rotation of the valve core, that is, during the process of valve switching, the first opening 141, the second opening 142, and the third opening 143 can be interconnected. The fourth opening 151, the fifth opening 152, and the sixth opening 153 can be interconnected. This enables the ballast system 100 to smoothly switch between different states without sudden interruption or violent impact within the ballast system 100 during the switching process between different states, reducing the risk of pressure fluctuations and damage to the internal components of the ballast system 100 caused by sudden changes in water flow, and extending the service life of the ballast system 100.

[0051] When the ballast system 100 is in the no-load state, that is to say, the ballast system 100 neither intakes water nor discharges water, and the total amount of water in the pressure-resistant water tank 130 remains unchanged. At this time, the first opening 141 and the third opening 143 in the first three-way valve 140 are connected, and the fourth opening 151 and the fifth opening 152 of the second three-way valve 150 are connected. The water in the pressure-resistant water tank 130 flows from the third outlet to the first end 161, and then flows from the second end 162 to the third inlet.

[0052] When the ballast system 100 is unloaded, although the total amount of water in the pressure water tank 130 remains unchanged, the water in the pressure water tank 130 is always in a state of dynamic equilibrium, and the water flow always circulates back and forth in some pipes in the ballast system 100. During the operation of the ship 1000, the ballast system 100 can always keep running. When the ship 1000 needs to control the draft, the first three-way valve 140 and the second three-way valve 150 can be adjusted to achieve the transformation from the unloaded state to the water intake state or the water discharge state. Since the water in the pressure water tank 130 is always in a state of dynamic equilibrium, the water in the pipe where the pressure water tank 130 is located is also always in a state of dynamic equilibrium. Therefore, when the ballast system 100 is transformed from the unloaded state to the water intake state or the water discharge state, the first opening 141, the second opening 142 and the third opening 143 can be interconnected, and the fourth opening 151, the fifth opening 152 and The sixth openings 153 can also be connected to each other, and the pump body 160 is always in operation. When the ballast system 100 switches from an unloaded state to a water-intake state or a water-out state, problems such as water flow interruption or water hammer (severe pressure shock generated by the fluid in the pipeline) during the switching process are avoided. Because at the moment of switching, the connection between the three openings of the first three-way valve 140 and the three openings of the second three-way valve 150 provides a transition channel for the water flow, allowing the water flow to switch smoothly from one flow direction to another, ensuring the stability and reliability of the ballast system 100 operation, reducing impact or damage to system equipment, and extending the service life of the equipment. It can enable external water to be quickly brought into the pressure-resistant water tank 130 from the outside, or discharged from the pressure-resistant water tank 130 to the outside of the ballast system 100, thereby quickly, accurately and efficiently controlling the draft of the ship 1000.

[0053] Please refer to Figure 1 In this embodiment, a first electric ball valve 170 is provided between the first opening 141 and the first end 161 , and a second electric ball valve 171 is provided between the second end 162 and the fourth opening 151 .

[0054] The pump body 160 has a first end 161 and a second end 162, and a first electric ball valve 170 and a second electric ball valve 171 are respectively provided at both ends of the pump. By controlling the opening of the first electric ball valve 170 and the second electric ball valve 171 respectively, the water flow entering and flowing out of the pump body 160 can be accurately adjusted, thereby controlling the water content in the pressure-resistant water tank 130, thereby meeting the precise requirements of the ship 1000 for the ballast water flow under different working conditions. For example, when the ship 1000 enters and leaves the port, loads and unloads cargo, etc., the ballast water can be accurately adjusted to maintain the balance and stability of the ship 1000.

[0055] Exemplarily, when the ship 1000 is in a water ingress state and the ship 1000 needs to slowly take in water, that is, the water in the pressure-resistant water tank 130 needs to be slowly increased. At this time, the opening degrees of the first electric ball valve 170 and the second electric ball valve 171 can be controlled to be 50% of the full-load operation state respectively, so that the water in the pressure-resistant water tank 130 can be slowly increased.

[0056] The first electric ball valve 170 and the second electric ball valve 171 can cooperate with the first three-way valve 140 and the second three-way valve 150 to quickly respond and change the water flow rate, enabling the ballast system 100 to flexibly switch between different working modes such as water ingress and drainage and adapt to the requirements of different draft levels of the ship 1000, improving the operation efficiency and adaptability of the ballast system 100.

[0057] The first electric ball valve 170 and the second electric ball valve 171 have the function of quick closing. When the ballast system 100 needs to be stopped urgently or the water flow shows abnormal fluctuations, they can quickly close, effectively preventing the occurrence of water hammer phenomenon, avoiding impact and damage to the pipelines and equipment of the ballast system 100, and extending the service life of the ballast system 100.

[0058] Please refer to Figure 1 In this embodiment, the ballast system 100 further includes a first flowmeter 180, a second flowmeter 181, and a third flowmeter 182. The first flowmeter 180 is disposed between the first electric ball valve 170 and the first end 161, the second flowmeter 181 is disposed between the fifth opening 152 and the third water inlet 131, and the third flowmeter 182 is disposed between the third opening 143 and the third water outlet 132.

[0059] The first flowmeter 180 is arranged between the first electric ball valve 170 and the first end 161, so that the water flow rate flowing from the first end 161 into the pump body 160 can be accurately measured. The second flowmeter 181 is disposed between the fifth opening 152 and the third water inlet 131, so that the water flow rate flowing from the third water inlet 131 into the pressure-resistant water tank 130 can be accurately measured. The third flowmeter 182 can accurately measure the water volume flowing out of the pressure-resistant water tank 130. According to the flow data fed back by the first flowmeter 180, the second flowmeter 181, and the third flowmeter 182, the first electric ball valve 170 and the second electric ball valve 171 can be accurately adjusted. For example, when it is necessary to quickly fill the pressure-resistant water tank 130 with water, the opening degrees of the first electric ball valve 170 and the second electric ball valve 171 can be controlled to increase. If it is necessary to slowly drain the water in the pressure-resistant water tank 130, the opening degrees of the first electric ball valve 170 and the second electric ball valve 171 can be controlled to decrease, thereby realizing the precise control of the flow rate by the ballast system 100.

[0060] During the loading and unloading of goods and the navigation of the ship 1000, it is necessary to continuously adjust the water in the pressure-resistant water tank 130 to maintain the balance of the ship 1000. The accurate flow rate data provided by the first flow meter 180, the second flow meter 181, and the third flow meter 182 can help the crew accurately calculate the injection volume and discharge volume of the water in the pressure-resistant water tank 130, thereby more precisely adjusting the center of gravity of the ship 1000 and improving the navigation stability and safety of the ship 1000.

[0061] In addition, the real-time monitoring of the water flow rate by the first flow meter 180, the second flow meter 181, and the third flow meter 182 can avoid the overloading of equipment such as the pump body 160 due to excessive flow rate, or the situation of the equipment idling due to too small flow rate, ensure that the ballast system 100 operates within an appropriate flow rate range, extend the service life of the ballast system 100, and reduce the maintenance cost.

[0062] Please refer to Figure 1 , in this embodiment, the ballast system 100 further includes a first filter 190 and a second filter 191. The first filter 190 is disposed between the first opening 141 and the first electric ball valve 170, and the second filter 191 is disposed between the first water inlet 111 and the first water outlet 112.

[0063] The first filter 190 is disposed between the first opening 141 and the first electric ball valve 170, and can effectively filter out impurities in the water entering from the first three-way valve 140. If these impurities enter the pump body 160, they may cause problems such as wear and jamming of the internal parts of the pump body 160, affecting the normal operation and service life of the pump body 160. Through the filtration of the first filter 190, it can be ensured that the water entering the pump body 160 is relatively clean, reducing the damage to the pump body 160.

[0064] The second filter 191 is installed between the first water inlet 111 and the first water outlet 112 to filter the water entering the water inlet main pipe 110. This can prevent impurities such as plankton, sediment, and garbage in seawater from entering the pump body 160 or the pressure-resistant water tank 130, avoid the accumulation of these impurities in the ballast system 100 causing blockage, and at the same time reduce the wear and corrosion of the water inlet main pipe 110 and other components connected to the water inlet main pipe 110, extending the service life of the entire ballast system 100.

[0065] Setting the first filter 190 and the second filter 191 in the ballast system 100 can effectively reduce the impact of impurities on the ballast system 100, reduce the occurrence frequency of faults of the ballast system 100, improve the operation stability and reliability of the ballast system 100, and ensure that the ballast system 100 can work properly at any time during the navigation of the ship 1000.

[0066] Please refer to Figure 1, in this embodiment, the ballast system 100 further includes a first stop valve 200 and a second stop valve 201. The first stop valve 200 is disposed between the third opening 143 and the third water outlet 132, and the second stop valve 201 is disposed between the fifth opening 152 and the third water inlet 131.

[0067] The first stop valve 200 is arranged between the third opening 143 and the third water outlet 132. The first stop valve 200 can cut off the third water outlet 132 to control the water in the pressure-resistant water tank 130 from flowing out through the third water outlet 132. The second stop valve 201 is arranged between the fifth opening 152 and the third water inlet 131. The second stop valve 201 can cut off the third water inlet 131, and the second stop valve 201 can control the water flow from not flowing into the pressure-resistant water tank 130 through the third water inlet 131.

[0068] When some parts or components of the ballast system 100 fail and need to be repaired, the first stop valve 200 and the second stop valve 201 can be closed to isolate the pressure-resistant water tank 130 from other parts of the ballast system 100, without the need to drain the water in the entire pressure-resistant water tank 130, which is convenient for maintenance personnel to repair the ballast system 100 and reduces the maintenance cost and maintenance time.

[0069] Moreover, in case of an emergency, such as a leak in the ballast system 100, the first stop valve 200 and the second stop valve 201 can be quickly closed to control the water flow, which can help the crew take effective countermeasures in an emergency and protect the ship 1000 and the safety of personnel.

[0070] Please refer to Figure 1 , in this embodiment, the ballast system 100 further includes a stop check valve 210, and the stop check valve 210 is disposed between the second end 162 and the fourth opening 151.

[0071] The main function of the stop check valve 210 is to prevent water flow from flowing backward. During the operation of the ballast system 100, when the pump body 160 stops working or fails, the stop check valve 210 can automatically close to prevent the water flow from flowing back from the fourth opening 151 to the second end 162 of the pump body 160. This can effectively avoid problems such as pressure imbalance and equipment damage in the ballast system 100 caused by water flow reversal. For example, if the water flow reverses, the components inside the pump body 160 may be impacted by the reverse pressure, which will accelerate the wear of the components over time and even cause component damage, while the stop check valve 210 can well prevent this situation from occurring.

[0072] Moreover, the check valve 210 can ensure that when the pump body 160 is working normally, the water flow can only flow in a predetermined direction, avoiding the additional load and damage caused by backflow to the pump body 160, and extending the service life of the pump body 160. In addition, during the startup and shutdown processes of the pump body 160, the check valve 210 can also play a role in stabilizing the water flow, reducing the generation of water hammer phenomenon, and further protecting the pump body 160 and related pipeline equipment.

[0073] During the navigation of the ship 1000, the attitude and working conditions of the ship 1000 may change continuously, and the water flow direction and pressure of the ballast system 100 will also change accordingly. The presence of the check valve 210 can ensure that under various complex working conditions, the water flow direction in the ballast system 100 always meets the design requirements, maintaining the stable operation of the ballast system 100. For example, when the ship 1000 tilts, the check valve 210 can prevent abnormal water flow caused by the tilt, ensuring that the ballast system 100 can normally adjust the water flow and maintain the balance of the ship 1000.

[0074] Please refer to Figure 1 and Figure 2 , in this embodiment, the ballast system 100 further includes a third electric ball valve 172 and a power unit 220. The third electric ball valve 172 is located between the first opening 141 and the fourth opening 151. The power unit 220 is used to store liquid carbon dioxide. The power unit 220 is connected to the pressure-resistant water tank 130. When both the first three-way valve 140 and the second three-way valve 150 are in the water outlet state, the power unit 220 is communicated with the pressure-resistant water tank 130 to release supercritical carbon dioxide into the pressure-resistant water tank 130.

[0075] The third electric ball valve 172 is arranged between the first opening 141 and the fourth opening 151 . When the third electric ball valve 172 is opened, water can flow from the first opening 141 to the fourth opening 151 , then from the fourth opening 151 to the sixth opening 153 , and finally flow out from the water outlet main pipe 120 . Liquid carbon dioxide is stored inside the power unit 220, and the power unit 220 is connected to the pressure water tank 130. When the first three-way valve 140 and the second three-way valve 150 are both in the water outlet state, the liquid carbon dioxide in the power unit 220 is converted into supercritical carbon dioxide with ultra-high pressure. The carbon dioxide rapidly expands and performs work, quickly discharging the water in the pressure water tank 130. The water in the pressure water tank 130 is squeezed by the supercritical carbon dioxide, and then flows out of the pressure water tank 130 from the third water outlet 132, flows from the third water outlet 132 to the third opening 143, flows from the third opening 143 to the first opening 141, and flows from the first opening 141 to the third electric ball valve 172. At this time, the electric ball valve is in the open state, and flows from the third electric ball valve 172 to the fourth opening 151, from the fourth opening 151 to the sixth opening 153, and then flows out from the water outlet main pipe 120, thereby quickly discharging the water in the pressure water tank 130.

[0076] Compared with the method of draining water by simply using the pump body 160 to pump out the water in the pressure water tank 130, the power unit 220 releases supercritical carbon dioxide and then the pressure water tank 130, which enables the ship 1000 to quickly adjust the ballast state, adapt to different navigation conditions, quickly change the draft depth or adjust the balance state of the ship 1000.

[0077] In some embodiments, when the power unit 220 discharges supercritical carbon dioxide, the pump body 160 may stop running, and the first electric ball valve 170 and the second electric ball valve 171 may be closed.

[0078] Please refer to Figure 2 In this embodiment, the power unit 220 includes a storage chamber 221 and an excitation member 222. The storage chamber 221 is used to store liquid carbon dioxide. The excitation member 222 is arranged in the storage chamber 221. The excitation member 222 is constructed to receive a control signal and generate heat so that the liquid carbon dioxide absorbs heat and is converted into high-pressure supercritical carbon dioxide.

[0079] The excitation element 222 can receive a control signal and then generate heat, so that the liquid carbon dioxide absorbs the heat and is converted into high-pressure supercritical carbon dioxide. The supercritical carbon dioxide can be used as a power source. The high-pressure carbon dioxide enters the pressure-resistant water tank 130, causing the water in the pressure-resistant water tank 130 to be discharged.

[0080] Specifically, the excitation member 222 is configured to receive a control signal and generate heat, so that the liquid carbon dioxide absorbs heat and is converted into high-pressure supercritical carbon dioxide. Since the pressure increases during the process of the liquid carbon dioxide becoming supercritical, the dependence on external energy can be reduced, the water in the ballast tank can be discharged, the operating efficiency of the ballast system 100 can be improved, and the applicable range of the ballast system 100 can be expanded.

[0081] In some embodiments, the excitation member 222 may be configured as a PTC heating element.

[0082] In some embodiments, the first three-way valve 140 and the second three-way valve 150 have the same structure and both include a valve body 230, a ball core 240, and three valve seats. A valve cavity 300 is provided in the valve body 230. The ball core 240 is located in the valve cavity 300, and a flow channel 270 is provided in the ball core 240. The three valve seats include a first valve seat 250 and two second valve seats 260. In the first three-way valve 140, all three valve seats are in sealing cooperation with the ball core 240. The flow channel 270 can selectively communicate with the first opening 141 and the second opening 142 or the first opening 141 and the third opening 143. The first valve seat 250 is disposed at the first opening 141, and each second valve seat 260 is disposed at the corresponding second opening 142 and the third opening 143. A first gap 280 is provided between the first valve seat 250 and the first opening 141, and a seal 290 is provided between each second valve seat 260 and the corresponding second opening 142 and the third opening 143. Water can flow into the valve cavity 300 from the first gap 280 between the first valve seat 250 and the first opening 141. The seal 290 seals between the second valve seat 260 and the second opening 142 and between the second valve seat 260 and the third opening 143, preventing water from leaking into the valve cavity 300 from the seals between the second opening 142 and the second valve seat 260 and between the third opening 143 and the second valve seat 260. In the second three-way valve 150, all three valve seats are in sealing cooperation with the ball core 240. The flow channel 270 can selectively communicate with the fourth opening 151 and the fifth opening 152 or the fourth opening 151 and the sixth opening 153. The first valve seat 250 is disposed at the fourth opening 151, and each second valve seat 260 is disposed at the corresponding fifth opening 152 or the sixth opening 153. A first gap 280 is provided between the first valve seat 250 and the fourth opening 151, and a seal 290 is provided between each second valve seat 260 and the corresponding fifth opening 152 and the sixth opening 153. Water can flow into the valve cavity 300 from the first gap 280 between the fourth opening 151 and the first valve seat 250. The seal 290 seals the gaps between the second valve seat 260 and the fifth opening 152 and between the second valve seat 260 and the sixth opening 153.

[0083] In this way, a first gap 280 is provided between the first valve seat 250 and the first opening 141 in the first three-way valve 140, and water flow can flow into the valve cavity 300. The water in the valve cavity 300 can support the ball valve, making the pressure difference between the two ends of the second valve seat 260 of the second opening 142 and the third opening 143 relatively small. Thus, when the ball core 240 turns, the torsional force required by the ball core 240 can be reduced, energy consumption can be decreased, and moreover, the friction between the ball core 240 and the valve seat can be reduced, and the probability of damage to the ball core 240 can be lowered. A seal 290 is provided between each second valve seat 260 and the corresponding second opening 142 and third opening 143, which can ensure tight sealing when the second opening 142 or the third opening 143 is in the closed state, preventing backflow or leakage. In the second three-way valve 150, a first gap 280 is provided between the first valve seat 250 and the fourth opening 151, and water flow can flow into the valve cavity 300. The water in the valve cavity 300 can support the ball valve, making the pressure difference between the two ends of the second valve seat 260 of the fifth opening 152 and the sixth opening 153 relatively small. Thus, when the ball core 240 turns, the torsional force required by the ball core 240 can be reduced, energy consumption can be decreased, and moreover, the friction between the ball core 240 and the valve seat can be reduced, and the probability of damage to the ball core 240 can be lowered. A seal 290 is provided between each second valve seat 260 and the corresponding fifth opening 152 and sixth opening 153, which can ensure tight sealing when the fifth opening 152 or the sixth opening 153 is in the closed state, preventing backflow or leakage.

[0084] Please refer to Figures 1 to 5 , an embodiment of the present application provides a ship 1000, including the ballast system 100 for a ship according to any one of the embodiments of the present application.

[0085] In the ship 1000 provided by the embodiment of the present application, the first opening 141 can selectively communicate with the second opening 142 or the third opening 143, the fourth opening 151 can selectively communicate with the fifth opening 152 or the sixth opening 153, and the pressure-resistant water tank 130 can quickly intake or discharge water. Thus, the ballast system 100 can quickly and efficiently adjust the ballast state of the ship 1000, improve the adjustment efficiency of the ballast of the ship 1000, enable the ship 1000 to maintain good balance and stability under different loading conditions and navigation environments, and thereby improve the navigation safety of the ship 1000.

[0086] It should also be noted that the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, commodity or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, commodity or device comprising said element.

[0087] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and reference can be made to the relevant part of the method embodiment for the related content.

[0088] The above are only the embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

[0089] Although the embodiments of the present application are described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A ballast system for a ship, characterized in that, Comprising: An inlet main pipe having a first inlet and a first outlet; An outlet main pipe having a second inlet and a second outlet; A pressure-resistant water tank having a third inlet and a third outlet; A first three-way valve and a second three-way valve. The first three-way valve has a first opening, a second opening and a third opening. The second three-way valve has a fourth opening, a fifth opening and a sixth opening. The first opening can be selectively connected to the second opening or the third opening. The fourth opening can be selectively connected to the fifth opening or the sixth opening; A pump body having a first end and a second end. The first end is connected to the first opening, and the second end is connected to the fourth opening; Wherein, the second opening is connected to the first outlet, the third opening is connected to the third outlet, the fifth opening is connected to the third inlet, and the sixth opening is connected to the second inlet.

2. The ballast system for a ship according to claim 1, characterized in that, The first three-way valve has a first inlet state and a first outlet state. When the first three-way valve is in the first inlet state, the first opening is connected to the second opening. When the first three-way valve is in the first outlet state, the first opening is connected to the third opening. When switching between the first inlet state and the first outlet state, the first opening, the second opening and the third opening are all connected; The second three-way valve has a second inlet state and a second outlet state. When the second three-way valve is in the second inlet state, the fourth opening is connected to the fifth opening. When the second three-way valve is in the second outlet state, the fourth opening is connected to the sixth opening. When switching between the second inlet state and the second outlet state, the fourth opening, the fifth opening and the sixth opening are all connected.

3. The ballast system for a ship according to claim 2, characterized in that, A first electric ball valve is provided between the first opening and the first end, and a second electric ball valve is provided between the second end and the fourth opening.

4. The ballast system for a ship according to claim 3, characterized in that, The ballast system further includes a first flowmeter, a second flowmeter and a third flowmeter. The first flowmeter is arranged between the first electric ball valve and the first end, the second flowmeter is arranged between the fifth opening and the third inlet, and the third flowmeter is arranged between the third opening and the third outlet.

5. The ballast system for a ship according to claim 3, characterized in that, The ballast system further includes a first filter and a second filter. The first filter is arranged between the first opening and the first electric ball valve, and the second filter is arranged between the first inlet and the first outlet.

6. The ballast system for a ship according to claim 1, characterized in that, The ballast system further includes a first stop valve and a second stop valve. The first stop valve is arranged between the third opening and the third outlet, and the second stop valve is arranged between the fifth opening and the third inlet.

7. The ballast system for a ship according to claim 1, characterized in that, The ballast system further includes a stop check valve, and the stop check valve is arranged between the second end and the fourth opening.

8. The ballast system for a ship according to claim 3, characterized in that, The ballast system further includes a third electric ball valve and a power unit. The third electric ball valve is located between the first opening and the fourth opening. The power unit is used for storing liquid carbon dioxide. The power unit is connected to the pressure-resistant water tank. When both the first three-way valve and the second three-way valve are in the water outlet state, the power unit is communicated with the pressure-resistant water tank to release supercritical carbon dioxide into the pressure-resistant water tank.

9. The ballast system for a ship according to claim 8, characterized in that, The power unit includes a storage chamber and an excitation member. The storage chamber is used for storing liquid carbon dioxide. The excitation member is arranged in the storage chamber. The excitation member is configured to receive a control signal and generate heat, so that the liquid carbon dioxide is converted into high-pressure supercritical carbon dioxide after absorbing heat.

10. A ship, characterized in that, It includes the ballast system for ships according to any one of claims 1-9.

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