RU4276U1 - WATER DRAINAGE SYSTEM OF THE SUBMARINE - Google Patents

Abstract

A submarine drainage system comprising a pumping unit connected through one non-return valve to a first air valve, through a shut-off valve to a second air valve and through another non-return valve to a pipe having free ends equipped with non-return valve , for servicing the compartments, characterized in that it is equipped with an ejector having a nozzle of the working fluid, a suction and discharge nozzles, as well as a pipeline with a shut-off and two nevo shut-off valves, while the nozzle of the working fluid of the ejector through an additional shut-off valve is connected to the pressure pipe of the pump unit, the suction pipe of the ejector through the first additional non-return-lock valve is connected to the pipeline having free ends, and the discharge pipe of the ejector through the second additional non-return-lock the valve is connected to the first airborne valve.

Description

WATER DRAW

A useful model relates to the field of shipbuilding and is designed to remove water and gases from the compartments of a submarine. overboard,

Universally convenient for the pumping of water on ships, containing a vacuum pump connected to a prefabricated tank, to which one Yijm is suitable for several wastewater pipelines with sewer 1 and valves Ш / Germany, application and OH 3001229, P5bl.13.01.83 /. The known device has limited possibilities of use.

Known means of receiving water from behind on board submarines, redistributing the received water to the water tank and supporting ballast and removing water overboard, and, apparently, the main drainage (sump) pump / V.M. Bukelov and A.A. Narusbaev. Nuclear submarine design. L., Shipbuilding, 1968, c.IVO-172 /, which are connected by jumpers with the diaphragm-equalization system of the vessel. The princh1Sh1al scheme of the drainage sistegzh is shown in paragraph: Ig.1. The system contains a pumping unit I, which is connected to the 3a6opTHoiviy space by a pressure pipe through valve 2 (non-return-shut-off) and side valve 3, as well as a suction pipe through a shut-off valve 4 and side valve 5, and to the compartments 1ЖЖ В63 B2S / I6

through the irreversible green valve 6 of the WG, the receiving irreversible shut-off valves 7.8.9 (according to the number of compartments associated with the service pipeline). The free ends of the pipeline are brought into compartments.

The main purpose of the underwater systegla sump and the emergency removal of large masses of water from the compartments overboard for a limited time in the free-flowing field. For emergency removal of water from the compartment overboard, open the onboard clan 3, valves 2, 6 and 7 (8 ISh1 9 - depending on the compartment being drained) and turn on the pumping unit I, the last pumping unit has a main compartment overboard. At the end of the operation, the pump unit switches off, the valves open for operation are closed,

Wastewater system / 5 can be used for emergency drainage of compartments when small amounts of water come into them due to the side in case of leakage of equipment, pipelines, cable entries, etc. In addition, the drainage system pipelines can also be used to normalize (restore the gas composition) atmospheres of the emergency compartment, after eliminating the fire in it, which is carried out by repeatedly removing gases from the compartment overboard, through them with fresh air from the ship’s compressed air systems .. The removal of gases from the compartment through pipelines overboard occurs due to the excess of pressure: the phenomenon in the compartment over pressure overboard, and the pressure in the compartment can be reduced to a residual value, determined by the hydrostatic pressure of the water column at the level of the side valve through which the gas is released overboard.

The known drainage system is taken as the closest analogue. A drawback of the known system is the following: • the system is unable without continuous maintenance to perform rapid emergency drainage of the compartment, which receives water with a volumetric flow rate less than the supply of the drainage pumping unit.

since the rest of the unit is needed and when the operation is interrupted from the air, and in some cases, for example, when the compartment with the control station is contaminated, the necessary actions cannot be easily ensured;

-Sastegla can provide for the removal of gases overboard when relieving pressure in the emergency compartment in the underwater position, including in the icy position;

-when using pipelines more than once during the normalization of the atmosphere in the accident compartment, there is a possibility of the removal of gases into the atmosphere of other compartments through pipe fittings and self-priming liiiiie |;: construction of a water-pumping installation.

The objective of the utility model is to ensure the complete drainage of the compartment without draining and monitoring the installation., To remove the gases from the emergency compartment overboard in the supply position, and to prevent the removal of exhaust gases to other compartments through the system piping during normalize the composition of the atmosphere of the emergency compartment.

The problem is solved in that the known submarine drainage system, comprising a pumping unit connected through a non-return valve with a first onboard valve, through a shut-off valve with a second side valve, and through another non-return valve laid with a pipeline having free ends equipped with non-return shut-off valves, for the compaction of compartments, in accordance with the precaution, it is equipped with an ejector having a working-length pipe, suction and discharge pipes, and so; :: e pipeline with the non-return shut-off valves placed in it and the non-return-shut-off valves in it, while the nozzle of the ejector ejection liquid is connected to the pressure port of the pump unit through an additional check valve, and the ejector suction pipe is connected to the pipeline having s.-0 one ends at the first additional non-return-shut-off valve, and discharge pipe

the ejector through the second additional non-return valve is connected to the first side valve.

The ejector, which is used as a deodorant sump pump, represents a so-called jet pump, which is not involving moving parts. Pumping of the fluid is carried out due to the fact that the N8l is not netting it through the nozzle, a Kajviepe mixing area forms a region of reduced pressure and, therefore, 1 culvert is sucked into it through the suction pipe. Therefore, when a working fluid is supplied to the ejector, a mixture of working and pumped fluids enters the discharge pipe through the dasfusor, and part of the kinetic energy of the stream is converted to static pressure acting on the diffuser.

a forgiven basic scheme of the proposed drainage system is shown in Fig. 2, the system contains a pumping unit I, which is connected to the outboard space through an unlit pipe through a non-return valve 2 and the first on-board valve 3, through a suction pipe through a shut-off valve 4 and a second on-board valve 5, and to the pipeline, which has a free END in the compartments, through the non-return-shut-off valve 6 and receiving (according to the number of compartments) non-return-shut-off valves 7,8,9. The ejector 10 is connected through an additional provisional clan II with a working branch pipe} 1ш, Д1just connected to the discharge branch pipe of the pumping unit I, the suction branch pipe through the first additional non-return valve 12 and the non-return valve 7,8,9 - with shut-off device, and the discharge pipe through the second additional non-return valve 13 and the first side valve 3rd outboard space.

The proposed system operates as follows, in the initial position, the pumping unit I is turned off, all 1Zh8lsh, including onboard ones, are closed. For a long emergency drainage of the compartment into which water with a volumetric flow rate is less than the supply of the pumping unit I, OPEN open side flaps 3 and 5, shut-off valves 4 and II

and nvEozBratno-zalarny clavs 12 and 1D I connect

and the discharge nozzles of the ejector to work, as well as the intake non-return valve 7 (8/9) E pipe, ЕEeed Е compartment. Turn on the pumping unit I, which: delivers the EEE. From the side through the onboard clan 5 and shut-off valves 4, II E working pipe} 1 of the ejector 10. The ejector 10 draws water from the compartment through the first additional non-return valve 12 and the intake valve 7 (8/9) a removes the mixture of the working and pumped out of compartment E0, the back board through Etoroy additional irrevocably-locking clan 13 and the first side valve 3. In this mode, the dewatering system is able to work for a long time after starting up the pumping unit I without additional maintenance escaping and control, since installation I constantly pumps water from the side overboard with a guaranteed backwater, and the ejector 10 is not afraid of draining or stopping the flow of pumped water. At the end of the pumping operation, the pump unit I is turned off, the open valves are closed.

In order to remove gases from the compartment overboard, it opens the onboard valves 3,5 and valves 4,11,12,13 and 7 (8/9) and turn on the pump unit I. The latter supplies water from the side through the onboard valve 5 and valves 4, 11 into the nozzle of the working fluid of the ejector 10, which sucks gas from the compartment through the valves 12 and 7 (8/9) and removes the gas-water mixture of the working fluid (caring water) and the suction gas overboard through the valve 13 and the onboard clan 3. At the end of the operation, the pump Installation I is detected; the valves open for operation are closed.

Introduction of the ejector E to the submarine’s drainage system allows, without compromising the system’s characteristics - the volume of the supplied lead and power - to improve the operating capacity and reduce the requirements for monitoring the operation of the system in emergency conditions.

Claims (1)

A submarine drainage system comprising a pumping unit connected through one non-return valve to a first air valve, through a shut-off valve to a second air valve and through another non-return valve to a pipe having free ends equipped with non-return valve , for servicing the compartments, characterized in that it is equipped with an ejector having a nozzle of the working fluid, a suction and discharge nozzles, as well as a pipeline with a shut-off and two nevo shut-off valves, while the nozzle of the working fluid of the ejector through an additional shut-off valve is connected to the pressure pipe of the pump unit, the suction pipe of the ejector through the first additional non-return-lock valve is connected to the pipeline having free ends, and the discharge pipe of the ejector through the second additional non-return-lock the valve is connected to the first airborne valve.