CN206552223U - A kind of Large Offshore Structures carry the adaptive ballasting system of condition - Google Patents

Abstract

The utility model discloses a self-adaptive ballast system for loading conditions of large marine structures, which comprises a system server, a loading condition monitoring subsystem, a ballast pump-valve subsystem, a liquid level monitoring subsystem and a ballast tank. The utility model uses the loading condition monitoring subsystem to monitor the change of the loading condition of the marine structure in real time; uses the liquid level monitoring subsystem to monitor the water level information of N ballast tanks in the marine structure in real time; uses the system server to calculate the water level of the marine structure Stress distribution status, analyze and process data through the program set by the system server, formulate a ballast plan, and automatically control the ballast pump-valve subsystem; use the ballast pump-valve subsystem to adjust each ballast according to the instructions issued by the system server The working state of the pump and valve can realize the approximately uniform distribution of the load of the structure along the longitudinal direction, avoid sudden changes in the longitudinal distribution of the stress, reduce the maximum value of the stress, and ensure that the overall longitudinal strength of the structure meets the service requirements.

Description

A self-adaptive ballast system for large marine structures

technical field

The utility model relates to the technical field of ships and marine engineering, in particular to an adaptive ballast system for large-scale marine structures.

Background technique

In recent years, super-large ships and super-large floating bodies have appeared one after another, and ships and marine structures are showing a trend of large-scale and super-large. This puts forward higher requirements for the design and construction of ships and marine structures. On the one hand, due to the very large spans of large and super large ships and marine structures, large hull sagging deformations will be caused. On the other hand, the distribution of load conditions is complex and the range of load conditions varies greatly, resulting in uneven stress distribution and abrupt stress changes, making it more difficult to guarantee the longitudinal strength.

In order to ensure the overall longitudinal strength of the structure, the method of increasing the structural section modulus and increasing the structural strength is often adopted. However, blindly strengthening the structure to meet the strength requirements will not only increase the construction cost, but also increase the self-weight of the structure, and reduce the load or functional weight.

The main functions of the ballast water system in the prior art are: to inject or discharge ballast water according to the operation needs of ships and marine structures, so as to adjust the draft of the structure and its longitudinal and lateral stability; reduce the deformation of the hull , so as not to cause excessive bending moment and shear force; improve the airworthiness of no load. Therefore, ships and marine structures are generally equipped with ballast tanks. For large and super-large ships and marine structures, the distribution of load conditions is complex and the range of load conditions varies greatly, which is prone to sudden stress changes and longitudinal strength problems. Therefore, on the basis of ensuring the strength, a ballast system that can automatically adjust the injection, discharge, and transfer of ballast water according to the distribution and changes of the load conditions of the structure, so as to make the stress approximately uniform in the longitudinal direction and avoid sudden stress changes. The method of control appears to be of great significance.

Utility model content

In order to solve the above-mentioned problems in the prior art, the utility model shall design a ballast water injection, discharge and transfer that can automatically adjust the ballast water injection, discharge and transfer according to the distribution and change of the load condition of the structure on the basis of ensuring the strength, and then make the stress along the longitudinal direction An adaptive ballast system for large-scale marine structures with approximately uniform distribution and avoiding sudden stress changes.

In order to achieve the above object, the technical solution of the present utility model is as follows: a large-scale marine structure load condition self-adaptive ballast system, including a system server, a load condition monitoring subsystem, a ballast pump-valve subsystem, and a liquid level monitoring subsystem and a ballast tank; the system server is connected to the load condition monitoring subsystem, the ballast pump-valve subsystem and the liquid level monitoring subsystem; the ballast tank is connected to the ballast pump-valve subsystem and the liquid level monitoring subsystem respectively system connection;

The system server controls the loading condition monitoring subsystem, the ballast pump-valve subsystem and the liquid level monitoring subsystem; the loading condition monitoring subsystem monitors the loading condition of marine structures in real time and transmits the real-time loading condition data to System server; the ballast pump-valve subsystem controls all ballast pumps and valves on the marine structure by receiving instructions from the system server; the liquid level monitoring subsystem monitors the liquid level of the ballast tank on the marine structure in real time changes, and transmit the real-time liquid level data of the ballast tanks to the system server; there are N ballast tanks, and each ballast tank is connected by a ballast pump-valve subsystem, arranged along the length direction of the marine structure .

Compared with the prior art, the utility model has the following beneficial effects:

1. The utility model uses the loading condition monitoring subsystem to monitor the change of the loading condition of the marine structure in real time; uses the liquid level monitoring subsystem to monitor the water level information of N ballast tanks in the marine structure in real time; uses the system server to calculate the marine structure According to the stress distribution state of the object, the data is analyzed and processed through the program set by the system server, the ballast plan is formulated, and the ballast pump-valve subsystem is automatically controlled; the ballast pump-valve subsystem is used to adjust each The working state of the ballast pump and the valve realizes the approximately uniform distribution of the load of the structure along the longitudinal direction, avoids sudden changes in the longitudinal distribution of the stress, reduces the maximum value of the stress, and ensures that the overall longitudinal strength of the structure meets the service requirements.

2. After the maximum value of the stress is reduced in the utility model, the user can use the load condition self-adaptive ballast system to reduce the section modulus of marine structures on the premise of ensuring safety, saving materials and reducing construction costs; Reduce the weight of the object itself, increase the load capacity or functional weight, and improve the economy.

Description of drawings

Fig. 1 is a structural schematic diagram of the ballast system of the present invention.

Fig. 2 is a flow chart of the control method of the ballast system of the present invention.

In the figure: 1. Load condition monitoring subsystem, 2. System server, 3. Ballast pump-valve subsystem, 4. Ballast tank, 5. Liquid level monitoring subsystem, 6. Marine structures.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described. As shown in Figure 1, a load-condition adaptive ballast system for large marine structures includes a system server 2, a load-condition monitoring subsystem 1, a ballast pump-valve subsystem 3, a liquid level monitoring subsystem 5, and a ballast cabin 4; the system server 2 is connected to the load condition monitoring subsystem 1, the ballast pump-valve subsystem 3 and the liquid level monitoring subsystem 5; the ballast tank 4 is connected to the ballast pump-valve subsystem 3 and the The liquid level monitoring subsystem 5 is connected;

The system server 2 controls the loading condition monitoring subsystem 1, the ballast pump-valve subsystem 3 and the liquid level monitoring subsystem 5; the loading condition monitoring subsystem 1 monitors the loading condition of the marine structure 6 in real time and The loading condition data of the system is transmitted to the system server 2; the ballast pump-valve subsystem 3 controls all ballast pumps and valves on the marine structure 6 by receiving instructions from the system server 2; the liquid level monitoring subsystem 5 real-time Monitor the change of the liquid level of the ballast tank 4 on the marine structure 6, and transmit the real-time liquid level data of the ballast tank 4 to the system server 2; there are N ballast tanks 4, and between each ballast tank 4 It is connected through the ballast pump-valve subsystem 3 and arranged along the length direction of the marine structure 6 .

The marine structure 6 of this embodiment is a large floating body.

As shown in Figure 1-2, the control method of the present utility model comprises the following steps:

A: Monitoring load status;

The loading condition monitoring subsystem 1 monitors the loading condition of the marine structure 6 in real time, and transmits the loading condition data to the system server 2;

B: Monitor the liquid level of ballast tank 4;

The liquid level monitoring subsystem 5 monitors the water level information of N ballast tanks 4 in the marine structure 6 in real time, and transmits it to the system server 2;

C: Develop a ballast plan;

The system server 2 calculates the stress distribution state of the marine structure 6 according to the load condition data uploaded by the load condition monitoring subsystem 1 and the water level information of each ballast tank 4 uploaded by the liquid level monitoring subsystem 5, and analyzes through the program set by the system server 2 Process the data, formulate the ballast plan, adjust the injection, removal and transfer of ballast water in each ballast tank 4, and then make the load and stress approximately uniformly distributed along the longitudinal direction, and avoid sudden stress changes;

D: Control ballast pump-valve subsystem 3;

D1: The system server 2 sends control instructions to the ballast pump-valve subsystem 3 according to the formulated ballast scheme;

D2: The ballast pump-valve subsystem 3 adjusts the working status of each ballast pump and valve according to the instructions issued by the system server 2;

E: Go back to step B.

The utility model is not limited to this embodiment, and any equivalent ideas or changes within the technical scope disclosed in the utility model are listed as the protection scope of the utility model.

Claims (1)

1. A load-condition self-adaptive ballast system for large marine structures, characterized in that it includes a system server (2), a load-condition monitoring subsystem (1), a ballast pump-valve subsystem (3), a liquid level monitoring A subsystem (5) and a ballast tank (4); the system server (2) is connected to the load condition monitoring subsystem (1), the ballast pump-valve subsystem (3) and the liquid level monitoring subsystem (5) ; The ballast tank (4) is respectively connected with the ballast pump-valve subsystem (3) and the liquid level monitoring subsystem (5); The system server (2) controls the loading condition monitoring subsystem (1), the ballast pump-valve subsystem (3) and the liquid level monitoring subsystem (5); the loading condition monitoring subsystem (1) monitors the ocean in real time The loading state of the structure (6) and transmit the real-time loading data to the system server (2); the ballast pump-valve subsystem (3) controls the marine structure ( 6) on all ballast pumps and valves; the liquid level monitoring subsystem (5) monitors the liquid level change situation of the ballast tank (4) on the marine structure (6) in real time, and the ballast tank (4) The real-time liquid level data is transmitted to the system server (2); there are N ballast tanks (4), and each ballast tank (4) is connected by a ballast pump-valve subsystem (3), along the ocean structure Object (6) lengthwise arrangement.