Bulk carrier stowage system and method meeting HCSR propeller full immersion

Abstract

The invention relates to the technical field of ship stowage meeting propeller full immersion, in particular to a bulk cargo ship stowage system meeting HCSR propeller full immersion, which comprises a stowage system control end, a navigation data monitoring end, a ballast water regulation and control end and a propeller immersion end, the stowage system control end is in electrical signal connection with the navigation data monitoring end, the ballast water regulation and control end and the propeller immersion end, and the ballast water regulation and control end is connected with the propeller immersion end through data signals. According to the ballast water stowage system, the amount and position of ballast water can be effectively regulated and controlled according to data monitored by the navigation data monitoring end, and therefore it is effectively guaranteed that a propeller is fully immersed for navigation under the conditions that the position of the gravity center of a ship is stable and the longitudinal trim size of the floating state meets the navigation requirement; and the full-immersion stowage effect of the HCSR propeller is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ship stowage to meet the requirement of full propeller immersion, and in particular to a bulk carrier stowage system and method to meet the requirement of full immersion of HCSR propellers. Background Art

[0002] During normal navigation, the HCSR propeller needs to be fully submerged. Since the basic design of the stern tube and shafting takes into account the complete submergence of the propeller, when the propeller of the ship is not fully submerged, it will cause performance loss of the ship, main engine overspeed and stress, or damage to the ship's mechanical equipment.

[0003] During the design process, traditional bulk carriers have limited performance development, resulting in a relatively high lightship weight. In this case, under conditions such as ballast navigation, parameters such as the center of gravity position make it easier for the propeller to remain fully submerged, making compliance with relevant regulatory requirements relatively simple. However, with the advancement of ship design technology, modern bulk carriers are increasingly focusing on optimizing structural weight. Through the adoption of more efficient structural designs and new materials, lightship weight has been significantly reduced. While this change has improved the ship's cargo capacity and economic efficiency to a certain extent, it has also brought new problems. Under ballast conditions, due to factors such as the change in the center of gravity position caused by the reduced lightship weight, it is difficult for the propeller to simply meet the full submersion requirements of HCSR as in the past. This makes safe operation of the ship difficult and makes it impossible to ensure stable navigation. To address this problem, we provide a bulk carrier stowage system and method that meets the full submergence requirements of HCSR propellers. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects in the prior art and provide a bulk carrier stowage system that meets the requirements of full immersion of HCSR propellers to solve this problem.

[0005] To achieve the above objectives, the technical solution of the present invention is to design a bulk carrier stowage system that meets the requirements of fully submerged HCSR propellers, including a stowage system control terminal, a navigation data monitoring terminal, a ballast water control terminal, and a propeller submerged terminal. The stowage system control terminal is electrically connected to the navigation data monitoring terminal, the ballast water control terminal, and the propeller submerged terminal, and the ballast water control terminal and the propeller submerged terminal are connected via data signals. The ballast water control end includes a data feedback module and a three-dimensional mathematical model module which are electrically connected to the stowage system control end. The data feedback module is connected to the three-dimensional mathematical model module via data signals.

[0006] A further preferred technical solution is that the three-dimensional mathematical model module includes a ballast water injection quantity calculation module, a ballast tank water quantity control module, a ballast water injection position calculation module and a ballast tank water level control module, which are connected to the electrical signal between the loading system control end; the ballast water injection quantity calculation module and the ballast tank water quantity control module are connected through data signals, the ballast water injection position calculation module and the ballast tank water level control module are connected through data signals, and the ballast water injection quantity calculation module and the ballast water injection position calculation module are both connected to the data feedback module through data signals.

[0007] A further preferred technical solution is that the navigation data monitoring end includes a ship oil and water monitoring module, a navigation draft depth monitoring module, a center of gravity position monitoring module, a navigation buoyancy monitoring module and a ballast tank water level monitoring module which are electrically connected to the loading system control end; the ship oil and water monitoring module, the navigation draft depth monitoring module, the center of gravity position monitoring module, the navigation buoyancy monitoring module and the ballast tank water level monitoring module are all connected to the data acquisition module through data signals.

[0008] According to a further preferred technical solution, both the ballast water injection amount calculation module and the ballast water injection position calculation module are connected to a data feedback module via data signals, and the data feedback module is connected to the loading system control terminal via data signals.

[0009] A further preferred technical solution is that the propeller immersion end includes a propeller immersion degree monitoring module, the propeller immersion degree monitoring module is connected to a data transmission module 2 through a data signal, the propeller immersion degree monitoring module is connected to the loading system control end through an electrical signal, and the data transmission module 2 is connected to the data feedback module through a data signal.

[0010] According to a further preferred technical solution, the propeller immersion degree monitoring module is connected to an alarm sensor via an electrical signal, and the alarm sensor is connected to a control terminal of the stowage system via an electrical signal.

[0011] The present invention also provides a method for stowing a bulk carrier with a fully submerged HCSR propeller, comprising the following steps: The first step is to establish line connections and control between the stowage system control terminal, the navigation data monitoring terminal, the ballast water control terminal, and the propeller immersion terminal; Step 2: During the ship's departure from the port, the ship's oil and water monitoring module on the navigation data monitoring terminal detects the oil and water levels in real time throughout the entire voyage. The navigation draft monitoring module detects the ship's draft, the center of gravity position monitoring module detects the ship's current center of gravity position, and the navigation buoyancy monitoring module detects the current longitudinal buoyancy data of the ship's destination voyage. The ballast tank water level monitoring module also detects the water levels inside multiple ballast tanks. The third step is to feed back the real-time detection data of the ship oil and water monitoring module, navigation draft monitoring module, center of gravity position monitoring module, navigation buoyancy monitoring module, and ballast tank water level monitoring module to the data acquisition module, thereby achieving real-time monitoring. The data acquisition module then feeds back the collected data to the stowage system control terminal through the data transmission module 1; Step 4: The stowage system control terminal transmits this data information to the data feedback module, and the propeller immersion degree monitoring module detects the current propeller immersion degree and feeds it back to the alarm sensor. When the propeller is not completely immersed, the alarm sensor receives this information and sends an alarm information to the stowage system control terminal, so that the stowage system control terminal issues an alarm to remind the staff, and feeds back the specific propeller immersion degree data information to the data feedback module through the data transmission module 2; In the fifth step, the data information detected by the navigation data monitoring end and the propeller immersion end is fed back to the three-dimensional mathematical model module through the data feedback module. The ballast water injection amount calculation module and the ballast water injection position calculation module of the three-dimensional mathematical model module perform data simulation calculation and analysis based on the current ship oil and water level, navigation draft, ship center of gravity position, navigation floating state trim, water level of each ballast tank and current propeller immersion degree data. Finally, the ballast water injection amount calculation module and the ballast water injection position calculation module calculate the specific ballast water amount to distribute the ballast water at the specific location of the ballast tank. The ballast tank water amount control module and the ballast tank water level control module realize the transfer or discharge of ballast water by precisely controlling the opening and closing of valves and the operation of pumps according to the ship's own ballast water management system, thereby accurately controlling the position of water injection in the ballast tanks that need to be filled and the position of drainage in the ballast tanks that need to be drained, so as to maintain the propeller fully immersed for navigation, ensure the center of gravity position of the ship is stable, and the trim of the floating state meets the navigation requirements.

[0012] The advantages and beneficial effects of the present invention are as follows: 1. The ship's oil and water level, navigation draft, ship's center of gravity, the size of the longitudinal inclination of the navigation buoyancy, and the water level of each ballast tank during the navigation of the ship are monitored in real time through the ship's oil and water monitoring module, navigation draft, ship's center of gravity, the size of the longitudinal inclination of the navigation buoyancy, and the water level of each ballast tank at the navigation data monitoring end, so that the ballast water control end can effectively control the amount and position of the ballast water according to the monitored data, thereby effectively ensuring that the propeller is fully immersed when the center of gravity of the ship is stable and the size of the longitudinal inclination of the buoyancy meets the navigation requirements, thereby improving the loading effect that meets the full immersion of the HCSR propeller.

[0013] 2. The propeller immersion degree monitoring module monitors the specific degree of propeller immersion in real time and feeds this information back to the ballast water control end, so that the ballast water control end can quickly perform ballast water data control analysis and calculation based on the current specific degree of propeller non-immersion in real time, so as to ensure that the propeller is fully immersed according to the precise ballast water loading, so that the ship can sail safely and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a logical diagram of the overall system proposed by the present invention; Figure 2 This is a logical diagram of the navigation data monitoring terminal proposed in the present invention; Figure 3 This is a logical diagram of the ballast water control end proposed in the present invention; Figure 4 This is a logical diagram of the three-dimensional mathematical model module proposed by the present invention; Figure 5 This is a logical diagram of the propeller submerged end proposed in the present invention. DETAILED DESCRIPTION

[0015] The following embodiments are further described in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0016] Reference Figure 1-2 As shown, a bulk carrier stowage system that meets the requirements of full immersion of HCSR propellers includes a stowage system control terminal, a navigation data monitoring terminal, a ballast water control terminal and a propeller immersion terminal. The stowage system control terminal is connected to the navigation data monitoring terminal, the ballast water control terminal and the propeller immersion terminal through electrical signals, and the ballast water control terminal and the propeller immersion terminal are connected through data signals.

[0017] The navigation data monitoring end includes a ship oil and water monitoring module, a navigation draft depth monitoring module, a center of gravity position monitoring module, a navigation buoyancy monitoring module and a ballast tank water level monitoring module, which are electrically connected to the stowage system control end. The ship oil and water monitoring module, the navigation draft depth monitoring module, the center of gravity position monitoring module, the navigation buoyancy monitoring module and the ballast tank water level monitoring module are all connected to the data acquisition module through data signals. The data acquisition module is connected to the data transmission module 1 through data signals. The data transmission module 1 is connected to the stowage system control end through data signals.

[0018] The ship's oil and water monitoring module, navigation draft monitoring module, center of gravity position monitoring module, navigation buoyancy monitoring module and ballast tank water level monitoring module of the navigation data monitoring end are used to monitor the ship's oil and water level, navigation draft, ship center of gravity position, navigation buoyancy trim and water level in each ballast tank in real time during navigation, so that the ballast water control end can effectively regulate the amount and position of ballast water according to the monitored data, thereby effectively ensuring that the propeller is fully immersed during navigation when the center of gravity position of the ship is stable and the buoyancy trim meets the navigation requirements, thereby improving the loading effect that meets the full immersion of the HCSR propeller.

[0019] Reference Figure 1 and 3 -4, the ballast water control end includes a data feedback module and a three-dimensional mathematical model module connected to the stowage system control end via electrical signals. The data feedback module is connected to the three-dimensional mathematical model module via data signals. The three-dimensional mathematical model module includes a ballast water injection quantity calculation module, a ballast tank water quantity control module, a ballast water injection position calculation module and a ballast tank water level control module connected to the stowage system control end via electrical signals. The ballast water injection quantity calculation module and the ballast tank water quantity control module are connected via data signals, the ballast water injection position calculation module and the ballast tank water level control module are connected via data signals, and the ballast water injection quantity calculation module and the ballast water injection position calculation module are both connected to the data feedback module via data signals.

[0020] The three-dimensional mathematical model module is used to perform three-dimensional data simulation calculation and analysis based on the obtained data information, so as to effectively obtain the precise location of water filling and drainage control in the ballast tank, effectively improving the ballast water loading efficiency.

[0021] Reference Figure 1 、 3As shown in Figure 5, the propeller immersion end includes a propeller immersion degree monitoring module, the propeller immersion degree monitoring module is connected to the data transmission module 2 through a data signal, the propeller immersion degree monitoring module is connected to the loading system control end through an electrical signal, the data transmission module 2 is connected to the data feedback module through a data signal, the propeller immersion degree monitoring module is connected to the alarm sensor through an electrical signal, and the alarm sensor is connected to the loading system control end through an electrical signal.

[0022] The propeller immersion degree monitoring module monitors the specific degree of propeller immersion in real time, and feeds this information back to the ballast water control end, so that the ballast water control end can perform effective three-dimensional data simulation calculation and analysis based on the current specific degree of propeller non-immersion in real time, so as to ensure that the propeller is fully immersed according to the precise ballast water loading, so that the ship can sail safely and stably.

[0023] The present invention also provides a method for stowing a bulk carrier with a fully submerged HCSR propeller, comprising the following steps: The first step is to establish line connections and control between the stowage system control terminal, the navigation data monitoring terminal, the ballast water control terminal, and the propeller immersion terminal; Step 2: During the ship's departure from the port, the ship's oil and water monitoring module on the navigation data monitoring terminal detects the oil and water levels in real time throughout the entire voyage. The navigation draft monitoring module detects the ship's draft, the center of gravity position monitoring module detects the ship's current center of gravity position, and the navigation buoyancy monitoring module detects the current longitudinal buoyancy data of the ship's destination voyage. The ballast tank water level monitoring module also detects the water levels inside multiple ballast tanks. The third step is to feed back the real-time detection data of the ship oil and water monitoring module, navigation draft monitoring module, center of gravity position monitoring module, navigation buoyancy monitoring module, and ballast tank water level monitoring module to the data acquisition module, thereby achieving real-time monitoring. The data acquisition module then feeds back the collected data to the stowage system control terminal through the data transmission module 1; Step 4: The stowage system control terminal transmits this data information to the data feedback module, and the propeller immersion degree monitoring module detects the current propeller immersion degree and feeds it back to the alarm sensor. When the propeller is not completely immersed, the alarm sensor receives this information and sends an alarm information to the stowage system control terminal, so that the stowage system control terminal issues an alarm to remind the staff, and feeds back the specific propeller immersion degree data information to the data feedback module through the data transmission module 2; The fifth step is to feed back the data information detected by the navigation data monitoring end and the propeller immersion end to the three-dimensional mathematical model module through the data feedback module, and the ballast water injection amount calculation module and the ballast water injection position calculation module of the three-dimensional mathematical model module perform data simulation calculation and analysis based on the current ship oil and water level, navigation draft, ship center of gravity position, navigation floating state trim, water level of each ballast tank and current propeller immersion degree data. Finally, the ballast water injection amount calculation module and the ballast water injection position calculation module calculate the specific ballast water amount to be distributed in the specific position of the ballast tank, and the ballast tank water amount control module and the ballast tank water level control module are used according to the ship's own ballast water management system to accurately control the opening and closing of valves and the operation of pumps to realize the transfer or discharge of ballast water, so as to accurately control the position of water injection for the ballast tank that needs to be filled, and accurately control the position of drainage for the ballast tank that needs to be drained, so as to keep the propeller fully immersed for navigation, and ensure that the center of gravity position of the ship is stable and the trim size of the floating state meets the needs of navigation. To sum up: The ship's oil and water monitoring module, navigation draft monitoring module, center of gravity position monitoring module, navigation buoyancy monitoring module and ballast tank water level monitoring module of the navigation data monitoring end are used to monitor the ship's oil and water level, navigation draft, ship center of gravity position, longitudinal inclination of navigation buoyancy and water level of each ballast tank during navigation in real time, and the propeller immersion degree monitoring module is used to monitor the specific degree of propeller immersion in real time, and this information is fed back to the ballast water control end, so that the ballast water control end can perform effective three-dimensional data simulation calculation and analysis according to the current specific degree of propeller non-immersion data in real time, so that the propeller can be fully immersed according to the precise ballast water loading, so that the ship can navigate safely and stably.

[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A bulk carrier stowage system that meets the requirement of full immersion of HCSR propellers, comprising a stowage system control terminal, a navigation data monitoring terminal, a ballast water control terminal and a propeller immersion terminal, characterized in that: The stowage system control terminal is connected to the navigation data monitoring terminal, the ballast water control terminal and the propeller immersion terminal through electrical signal connections, and the ballast water control terminal and the propeller immersion terminal are connected through data signals; The ballast water control end includes a data feedback module and a three-dimensional mathematical model module which are electrically connected to the stowage system control end. The data feedback module is connected to the three-dimensional mathematical model module via data signals.

2. A bulk carrier stowage system that satisfies the requirement of full immersion of HCSR propellers according to claim 1, characterized in that: The three-dimensional mathematical model module includes a ballast water injection quantity calculation module, a ballast tank water quantity control module, a ballast water injection position calculation module and a ballast tank water level control module, which are connected to the electrical signal between the loading system control end. The ballast water injection quantity calculation module and the ballast tank water quantity control module are connected through data signals, the ballast water injection position calculation module and the ballast tank water level control module are connected through data signals, and the ballast water injection quantity calculation module and the ballast water injection position calculation module are both connected to the data feedback module through data signals.

3. The bulk carrier stowage system that satisfies the requirement of full immersion of HCSR propellers according to claim 1, characterized in that: The navigation data monitoring end includes a ship oil and water monitoring module, a navigation draft depth monitoring module, a center of gravity position monitoring module, a navigation floating state monitoring module and a ballast tank water level monitoring module, which are connected to the electrical signal between the loading system control end. The ship oil and water monitoring module, the navigation draft depth monitoring module, the center of gravity position monitoring module, the navigation floating state monitoring module and the ballast tank water level monitoring module are all connected to the data acquisition module through data signals.

4. The bulk carrier stowage system that satisfies the requirement of full immersion of HCSR propellers according to claim 3, characterized in that: The data acquisition module is connected to the data transmission module 1 through a data signal, and the data transmission module 1 is connected to the loading system control end through a data signal.

5. The bulk carrier stowage system that satisfies the requirement of full immersion of HCSR propellers according to claim 1, characterized in that: The propeller immersion end includes a propeller immersion degree monitoring module, which is connected to a data transmission module 2 through a data signal. The propeller immersion degree monitoring module is connected to the loading system control end through an electrical signal, and the data transmission module 2 is connected to the data feedback module through a data signal.

6. The bulk carrier stowage system that satisfies the requirement of full immersion of HCSR propellers according to claim 5, characterized in that: The propeller immersion degree monitoring module is connected to an alarm sensor via an electrical signal, and the alarm sensor is connected to a stowage system control terminal via an electrical signal.

7. A method for stowing bulk carriers that meets the requirement of full immersion of HCSR propellers according to any one of claims 1 to 6, characterized in that: The following steps are involved: The first step is to establish line connections and control between the stowage system control terminal, the navigation data monitoring terminal, the ballast water control terminal, and the propeller immersion terminal; Step 2: During the ship's departure from the port, the ship's oil and water monitoring module on the navigation data monitoring terminal detects the oil and water levels in real time throughout the entire voyage. The navigation draft monitoring module detects the ship's draft, the center of gravity position monitoring module detects the ship's current center of gravity position, and the navigation buoyancy monitoring module detects the current longitudinal buoyancy data of the ship's destination voyage. The ballast tank water level monitoring module also detects the water levels inside multiple ballast tanks. The third step is to feed back the real-time detection data of the ship oil and water monitoring module, navigation draft monitoring module, center of gravity position monitoring module, navigation buoyancy monitoring module, and ballast tank water level monitoring module to the data acquisition module, thereby achieving real-time monitoring. The data acquisition module then feeds back the collected data to the stowage system control terminal through the data transmission module 1; Step 4: The stowage system control terminal transmits this data information to the data feedback module, and the propeller immersion degree monitoring module detects the current propeller immersion degree and feeds it back to the alarm sensor. When the propeller is not completely immersed, the alarm sensor receives this information and sends an alarm information to the stowage system control terminal, so that the stowage system control terminal issues an alarm to remind the staff, and feeds back the specific propeller immersion degree data information to the data feedback module through the data transmission module 2; In the fifth step, the data information detected by the navigation data monitoring end and the propeller immersion end is fed back to the three-dimensional mathematical model module through the data feedback module. The ballast water injection amount calculation module and the ballast water injection position calculation module of the three-dimensional mathematical model module perform data simulation calculation and analysis based on the current ship oil and water level, navigation draft, ship center of gravity position, navigation floating state trim, water level of each ballast tank and current propeller immersion degree data. Finally, the ballast water injection amount calculation module and the ballast water injection position calculation module calculate the specific ballast water amount to distribute the ballast water at the specific location of the ballast tank. The ballast tank water amount control module and the ballast tank water level control module realize the transfer or discharge of ballast water by precisely controlling the opening and closing of valves and the operation of pumps according to the ship's own ballast water management system, thereby accurately controlling the position of water injection in the ballast tanks that need to be filled and the position of drainage in the ballast tanks that need to be drained, so as to maintain the propeller fully immersed for navigation, ensure the center of gravity position of the ship is stable, and the trim of the floating state meets the navigation requirements.

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