RU2330783C2 - Device for ventilation of compartments of wrecked submarine laying on floor - Google Patents

Abstract

FIELD: transportation, submarines.

SUBSTANCE: device for ventilation of wrecked submarine compartments from the rescue ship, incorporates a compressed air feed hose and a contaminated air venting hose, both being jointed by threadless joints to the wrecked submarine compartment vent valves. The said vent hoses are jointed, at the ship, to a receiver with an water-gas ejector attached to the said receiver and creating rarefaction therein, driven by the operating fire-pump.

EFFECT: higher-efficiency air exchange in wrecked submarine.

1 dwg

Description

The invention relates to rescue equipment, namely, devices designed to ventilate the compartments of an emergency submarine (NPS) lying on the ground, in order to maintain the life of personnel until it is saved.

Currently, a two-arm ventilation submarine device is known, consisting of two hoses for discharging contaminated air from submarine compartments with a two-sleeve threadless riser and one compressed air supply hose with fittings for connecting to the submarine ventilation valves / 1 /.

A significant drawback of this device is its low efficiency, characterized by a low flow rate of air exhausting from the ALL compartments due to the limited pressure drop between the compartment and the atmosphere, equal to 0.1 MPa (1.0 kgf / cm ² ), and a small total cross-section of the discharge hoses.

This drawback reduces the ability and time to maintain the life of personnel located in the compartments of the emergency submarine.

The objective of the invention is to increase the efficiency of the ventilation device by increasing the flow rate of air discharging from the submarine compartment by increasing the pressure drop between the submarine compartment and the atmosphere.

This task is achieved by the fact that the air exhaust hoses on the rescue vessel are connected to the receiver, in which a vacuum (vacuum) is created as a result of suction of air from it using a gas-gas ejector.

Figure 1 shows the ventilation device, a General view, figure 2 is a receiver with a water-gas ejector, section.

The ventilation device comprises a compressed air supply hose 1 connected by a threaded connection to a compressed air intake valve 2 on a solid submarine 3, and exhaust hoses 8 with an unloading cable connected by a riser with a threadless connection to the air exhaust valve 9.

The sleeve 1 and hoses 8 are fed from the rescue vessel along the guide ropes 4 and 11, respectively, mounted on the hull and on the deck of the vessel. A hose 10 is connected to the air exhaust valve 9 in the submarine compartment to collect contaminated, more dense air from the bottom of the compartment. Fresh compressed air through valve 2 is supplied to the upper part of the submarine compartment. Valves 2 and 9 have dual control drives from the Epron wall in the superstructure and from the submarine compartment.

Clean compressed air in the sleeve 1 is supplied from the high pressure air storage facilities or from the compressor of the rescue vessel via pipeline 5 with a shut-off valve 6 and a pressure gauge 7.

The upper ends of the air exhaust hoses 8 are connected to the receiver 12 with a water-gas ejector 13 and a manometer 14. Working water under pressure to the nozzle 15 of the ejector 13 is supplied through a pipe 16 with a shut-off valve 17 and a pressure gauge 18 from the fire pump 19. A receiver 12 with a water-gas ejector 13 is installed on the frame 20, mounted on the deck of the vessel.

The ventilation device operates as follows.

On command from a rescue vessel, personnel in the ZPL compartment slowly alternately opens the supply valve 2 and the air exhaust 9 to drain the remaining water from the sleeve 1 and hoses 8.

If there was increased pressure in the ZPL compartment, then a decision is made about the need to lower it through the outlet hose 8 to normal pressure using a special decompression mode.

After that, by opening valve 6, clean compressed air is supplied to the ZPL compartment to a pressure of 0.1 MPa (1.0 kgf / cm ² ) - excessive. By opening the valve 17 through the pipeline 16 from the fire pump 19, working water is supplied under a pressure of 0.5-1.0 MPa (5.0-10 kgf / cm ² ) to the nozzle 15 of the gas-water ejector 13. As a result of the gas-water ejector 13, air is pumped out of the receiver 12 and it creates a vacuum (vacuum).

Thus, the simultaneous maintenance of a given pressure in the submarine compartment by supplying clean compressed air from a rescue vessel along the supply hose and creating the maximum possible exhaust air dilution in the receiver due to the operation of the gas-water ejector provide an increase in the air pressure difference between the submarine compartment and the atmosphere, which leads to an increase in consumption exhaust air

The creation of ventilation devices for the nuclear submarine compartments equipped with a receiver with a water-gas ejector, which creates a vacuum at the end of the withdrawal sections, will improve the ventilation efficiency of the nuclear submarine compartments and ensure long-term maintenance of the vital functions of personnel and, therefore, its rescue.

The source of information

1. The device is ventilating pl two-sleeve TU S279-75

Claims (1)

A device for ventilating compartments of an emergency submarine lying on the ground from a rescue vessel, comprising a compressed fresh air supply hose and contaminated air exhaust hoses connected to the ventilation valves of the compartments of an emergency submarine using threadless connections, characterized in that the air exhaust hoses on the rescue ship connected to the receiver with a water-gas ejector attached to it and creating a vacuum (vacuum) in it, which works when water is supplied from the fire pump.

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