RU2611456C1 - Ship drainage system - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: invention relates to shipborne equipment, in particular to remove water from the hull. Ship bilge system consists of pump, pipeline, processes, terminal, board, and travel of the bottom valve. In the bow of the ship, below the waterline, the nozzles are installed. They are directed to the right and left side. The nozzles are provided with shut-off valves and actuators. The drives of all valves are designed to control remotely from the wheelhouse of the vessel.

EFFECT: system of hull water removing with the opportunity to actively control, which produces a control force on the vessel, even if it does not move.

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Description

The invention relates to the field of shipbuilding, in particular to systems for removing water from the hull.

Bilge systems are known [1, 2, 3], which are a set of mechanisms, apparatuses, instruments and devices for removing water from the hull of a vessel. Periodic removal of water accumulating in the holds of a vessel during operation due to leaks in pipelines, fittings and due to condensation of water vapor, washing of decks is carried out by a drainage system. To remove large masses of water entering the hull during accidental damage to the vessel or when fighting a fire, the ship’s bilge system has a drainage system.

Known bow thrusters [4] located at the ends of the vessel. They are designed to improve the controllability of the vessel in confined areas, during mooring and when moving along the ice channel. Thrusters should operate in rough seas and in shallow water, be remotely controlled, not cause vibration, and be protected from damage by floating objects. They should also work reliably and be as simple as possible in design, installation and repair. Thrusters are active controls that create a control force on the ship at low speeds and when it has no travel.

Known hold systems of ships and bow thrusters are capable of performing only one of the functions indicated above. At the same time, each bow thruster and each drainage system have their own mass, which reduces the carrying capacity of the vessel with its same displacement.

The aim of the invention is to provide the ship’s drainage system with an additional function, an active control function, which will create a controlling force effect on the vessel, even if it has no course.

The technical result is to reduce the total mass of systems and devices, increase due to this, the carrying capacity of the vessel, as well as reducing the material consumption and the complexity of its construction. The result is achieved through the use of a thruster as a thruster, equipped with nozzles and additional valves.

A diagram illustrating the drainage system of the vessel is presented in the drawing.

The drainage system consists of a centrifugal pump 1 usually installed in the engine room (MO), a main pipeline 2 located in each impermeable compartment (for example, compartment A) of the processes 3 from it. Non-return valves 4 are installed at the ends of the processes 3. The drainage system also includes a non-return non-return shut-off valve 5 with a drive, a bottom shut-off valve 6 with a drive, a jumper and a shut-off valve 7 with a drive, and a shut-off valve 8 with a drive. Additionally, nozzles 9 and 10 are mounted in the bow of the hull below the waterline, directed to the starboard and port side. On pipes suitable for nozzles 9 and 10, shut-off valves 11 and 12 with actuators are installed. The valve actuators 5, 6, 7, 8, 11, 12 are remotely controlled from the wheelhouse.

The drainage system operates in two modes: in the system mode as such and in the thruster mode. In the mode, the drainage system works to remove the emergency water entering the ship's hull. In this operating mode, the shut-off valve 8 is normally open, the bottom valve 6 and the valve 7 on the jumper, valves 11 and 12 are normally closed. The pressure of emergency water entering the compartment of the body (for example, compartment A) opens the non-return valves 4 on the processes 3 and the line 2 is filled with water. The pump 1 is turned on, which through the onboard valve 5 removes emergency water overboard from the damaged compartment.

When adjusting the drainage system for operation in the thruster mode, the bottom valve 6 and the valve 7 on the jumper open. On-board valve 5 closes, valve 11 and valve 12 are closed. The pump 1 through the bottom valve 6 takes the seawater and directs it through the jumper with the open valve 7 to the line 2 and through the open shut-off valve 8 works on itself. To obtain a control force, to turn the vessel around, the shut-off valve 8 is closed and at the same time valve 11 or 12 opens, respectively, water flows out of the nozzle 9 or 10 under pressure, which emphasizes the port or starboard side. Non-return valves 4 do not allow water from line 2 and processes 3 to enter the compartments.

Thus, the ship’s drainage system performs an additional active control function, which creates a control force effect on the ship, even if it has no course.

LITERATURE

1. Alexandrov A.V. Ship systems. - L .: Sudprogiz, 1962.

2. Epifanov B.S. Ship systems. - L .: Shipbuilding, 1980.

3. Hordas G.S. Calculation of general ship systems: Reference. - L .: Shipbuilding, 1983.

4. Ship devices: Handbook / Ed. M.N. Alexandrova - L .: Shipbuilding, 1987.

Claims (1)

The ship’s drainage system, consisting of a pump, main pipeline, processes, end, side, bottom and track fittings, characterized in that it is equipped with nozzles with shut-off valves and actuators mounted in the bow of the ship’s hull below the waterline and directed to the right and left side while valve actuators are configured to remotely control from the wheelhouse of the vessel.

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