SU1440791A1 - Ship ballast system - Google Patents

Abstract

This invention relates to shipbuilding. The purpose of the invention is to simplify the design and improve performance by ensuring stable operation of the ballast pump. The ballast pump 1 is connected through the water supply chamber 2 to the distribution pipe 3, to which the drain 4, receiving 5-7, flooding 8, connecting 9 pipelines are connected. They are commissioned using valves 10-15, having actuators. Recirculation pipes 19, 20 and 21 are connected to the discharge pipe 4 by means of valves 16, 17 and 18, which are terminated by sprays 22, 23 and 24. Signal indicators 25-27 installed in ballast tanks are electrically connected to valve actuators. 1 il.

Description

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This invention relates to shipbuilding, namely shipboard ballast systems of floating docks.

The purpose of the invention is to simplify the design, increase operational performance by ensuring stable operation of the ballast pump.

The drawing shows the proposed system.

The system consists of a ballast pump I, connected by means of a water supply chamber 2 to a distribution pipe 3, to which a drain 4 is connected, receiving 5-7, flooding 8, connecting 9 pipelines. The listed pipelines are commissioned through valves CTB-V1 10-15 with their actuators. Recirculating pipes 19-21 are connected to the discharge pipe 4 by means of valves 16-18, having actuators, which are terminated by sprays 22-24. Signaling devices 25-27 installed in ballast tanks are electrically connected (shown by dotted lines) to valve actuators 16-18, respectively.

The system works as follows.

The ballast pump 1 through the water supply chamber 2, the distribution pipe 3, the receiving pipes 5-7 and the valves 1 1 -13 pumps the water from the ballast tanks overboard through the drain pipe 4 and the valve 10.

At the final stage of ballast pumping, when the water level in any tank, for example in ballast tank No. 1,

so low that the formation of vortices on the surface of the water is possible, the level 25 detector, set up ahead of this level, sends a signal to open the valve 16. A part of the pumped-out water from the discharge pipe 4 through the recirculation pipe 19 returns to the inlet nozzle conduit 5 to the vortex formation zone. The water flowing under pressure from the sprayer 22 creates an intense current on the surface, which prevents the formation of vortices (funnels), on the surface of the pumped water. Since the cause of air entering pump 1 is eliminated, the latter will work stably without disruption.

Claims (1)

Invention Formula The ship’s ballast system, containing interconnected ballast tanks, a pump, a water supply chamber, distribution, ejection, receiving, flooding and connecting pipelines with fittings, is characterized in that, in order to simplify the design, to improve performance ballast pump stable operation, it is equipped with recirculation piping with valves, which connect the drain piping with ballast tanks to each other, while at the end of the recirculation pipeline anovleny l Ithel and sprayed.