SU1527094A1 - Outside water intake system - Google Patents

Abstract

The invention relates to water intake systems and can be applied mainly on small-row craft. The purpose of the invention is to increase reliability by intensifying the separation of air from the flow of water. Kingston box 1 as the first cascade is divided by bulkhead 2 into input 3 and receiving 4 compartments, the latter is hydraulically connected to the second stage in the form of an air separator 8 located above the kingston box but below the vetralline. The housing is filled with a filter element 16 below the water inlet. The waste water from the consumer is partially discharged overboard, and partially supplied to the kingston box 1. 2 Cp. f-ly, 1 ill.

Description

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The invention relates to water intake systems and can be applied mainly on small-row craft.

The purpose of the invention is to increase the reliability of work by intensifying the separation of air from water flow.

The drawing shows a general scheme of the seawater intake system.

The seawater intake system contains a kingston box 1, divided by bulkheads 2 into intake 3 and the receiving 4 compartments with a ventilation pipe 5.

The Kingston L1I pitcher is mounted on the bottom 6 to the depth H from the WL waterline. From the kingston box, water flows through the supply pipe 7 to the second stage into the air separator 8 with the ventilation pipe 9. Next, through the pipeline 10, water flows to the consumer 11 (heat exchanger, for example). The waste water through the pipeline 12 is dumped overboard, and through the highway 13 to the kingston box. Each compartment has individual ventilation ducts 14 and 15. A filter element 16 is placed inside the air separator 16. The air separator itself is located at a depth h. The operation of the system is provided by a pump 17. The air separator is placed in a heated room 18.

Outboard water is mainly applied to provide cooling for consumer 11. By this, water is pumped through feed pipe 7 by pump 17 through said consumer 11. As a result of pump 17 operation, there is constant water movement from the side into intake compartment 3, bulkhead skirting 2 into the receiving compartment A and further into the air separator 8. Throughout the entire route, air bubbles constantly accumulate from a continuous stream of water, which accumulate under the crust of the kingston 1 and are removed from it through pipelines 14 and 15 to the atmosphere through pipeline 5.

Kingston Box 1 in this case is the first cascade of air puff separation, which, due to the sufficiently high speed of the water flow, does not have time to separate. In this connection, it is fed to the second stage in the air separator 8. Raznit1a in the depth H-h, as well as the presence of the filter element 16 create local hydraulic resistance to the movement of water, artificially reducing the flow rate. As a result, further intensive separation of air removed to the atmosphere through the pipeline 9 occurs in the air separator 8.

The release of air bubbles from the water largely depends on the static pressure under which they are located, i.e. from their depths from the waterline WTj. The air separator 8 of the second stage in order to improve the conditions for air separation should be max 1P close to the waterline, i.e. h.

In the process of decompression of the air separator, the size of the bubbles is increased by splitting small bubbles into larger ones and their diversion to the atmosphere is intensified.

However, due to the fact that the air separator 8 of the second cascade is installed near the receiving nozzles of the pumps, it should not be located at the lowest waterline. Otherwise, air may be leaked from the atmosphere through pipeline 9 and the pump may fail.

Experience in operating vessels with low draft, mainly floating cranes, indicates that I must be selected from half the height of the wave allowed by the specification according to the conditions of operation.

In consumer 11, the water temperature rises by about 10-30 C. Next, it is dumped overboard through a pipe 12. Part of the heated water through line 13 is diverted to kingston search 1, where it participates in heating the incoming overboard wave, thus intensifying the separation process in bubbles on the first cascade. The bulkhead 2 in the receiving compartment 4 creates local resistance to the movement of the water flow, lengthening its path and increasing the intensity of air release, and also prevents the spreading of the upper water layers. This is due to the fact that it is warmed up here and so along highway 13, it gets into the upper layers of their heating. Consequently, water enters the second part of compartment 4, which is warmer than in the intake compartment 3. From the warmer hearth, the air is separated more intensively, then

5 is removed through conduit 14 and at a higher speed.

The optimal location of the air separator 8 in a room with a high temperature, for example, in an engine room, boiler room, etc. In this case, the water flow coming through pipe 7 in the air separator is heated naturally, which has a positive effect on the process of air separation in the second stage.

Lormula invention

Claims (3)

1. A seawater intake system that contains a Kingston box separated by a bulkhead into an inlet and a receiving compartment equipped with a ventilation system including a pipeline with shut-off valves and a drain pipe, which in order to increase the reliability of bots by intensifying the separation of air from the water flow, it is equipped with an air separator with ventilation pipes and water supply to the consumer, which is connected to the kingston box through the valve, with the air separator located above the cushion of the aforementioned box, but below the water wall Q of the SRI, and the water supply line It is connected to the consumer with the discharge pipeline, one branch of which is connected with the outboard space, and the other with the kingston outlet. 15 2. Pop. 1 system, differing from the fact that each compartment of the Kingston drawer is equipped with an individual ventilation piping interconnected above the level 20 waterline at an acute angle 3. Pop. 1 system, differing from the fact that the air separator is filled with a filter element.