RU2759196C1 - Method for verifying operability of rescue hatch of submarine - Google Patents

Abstract

FIELD: life-saving.

SUBSTANCE: invention relates to the field of rescue of the crew of an emergency submarine. In order to verify the operability of the rescue hatch of a submarine, the locking system of the rescue hatch is verified by means of ventilation using an air supply unit, filling with water and increasing the pressure in shaft of the escape hatch until alignment thereof with the outboard one. An air hose and a latch hook, included in the rescue equipment of a member of the submarine crew, provided on the submarine, are used.

EFFECT: safety of exit of the submarine crew through the rescue hatch from the emergency submarine lying on the ground is achieved without additionally equipping the submarine with a special model.

1 cl, 2 dwg

Description

The invention relates to the field of rescuing the crew of an emergency submarine lying on the ground, in particular, to methods of testing the operability of the submarine's escape hatch before using it in an accident.

The exit from the emergency submarine lying on the ground is carried out through the escape hatch. Checking its performance before exiting is not provided [1]. Failure to perform this check may result in the death of the first outgoing submariner in the event that the escape hatch is faulty.

There is a known method for checking the escape hatch, which is used when carrying out mooring tests of rescue devices and systems on submarines under construction and upgraded under factory conditions when the submarine is on the surface [2]. This method provides for sluicing the model through the escape hatch into a special container filled with water, placed on the coaming platform of the escape hatch. Do the following:

1) Install a special container on the coaming platform of the escape hatch and fill it with water.

2) Place the model in the shaft of the escape hatch, the air hose of the model is connected to the air hose of the airlock system in the shaft of the escape hatch, the carabiner of the halyard of the model is connected to the halyard stopper in the shaft of the escape hatch.

3) Turn on ventilation on the air supply unit, air from the unit through the air hoses and fills the model, excess air is vented through the grass-safety valve of the model into the escape hatch shaft.

4) Close the bottom cover of the escape hatch and fill it with water.

5) After filling the shaft of the escape hatch with water, it is sealed, the ventilation is turned off and the compression on the air supply unit is turned on, the air through the hoses and the herbal safety valve of the model enters the shaft of the hatch.

6) After equalizing the pressure in the escape hatch shaft and the hydrostatic pressure in a special container, the upper hatch cover automatically opens, the halyard stopper releases the hook of the dummy tether, the air hose of the airlock system is disconnected from the dummy hose and the dummy floats into a special container.

7) Close the top cover and drain the escape hatch shaft.

The escape hatch is considered operational if, when the compression is turned on, the rate of pressure increase in the hatch shaft meets the requirements of the operational documentation [3], the top cover opened automatically, the carabiner of the dummy halyard detached from the halyard stopper in the hatch shaft and the model floated into a special container, after the mock-up floated up, the top cover closed using a pneumatically operated valve and after closing the escape hatch shaft is drained and sealed. This method is taken as a prototype, as the closest to the essence of the invention.

The disadvantage of this method is the condition for the presence of a special model on the submarine for its trial airlock through the escape hatch before the airlock of people. Manning submarines with this product requires separate funding and the implementation of a number of organizational measures for its adoption for the supply of the Ministry of Defense of the Russian Federation.

The objective of the invention is to develop a method for testing the performance of the submarine's escape hatch before using it for its intended purpose.

The problem is solved by the fact that in order to check the locking system of the rescue hatch, ventilation is performed using an air supply unit, filling with water and increasing the pressure in the shaft of the rescue hatch until it is aligned with the outboard hatch, using an air hose and a carbine, which are part of the rescue equipment of the submariner, which available on the submarine.

New features of the proposed method for testing the performance of the submarine's escape hatch are:

- using the air hose of the diver's rescue equipment instead of the model air hose to check the compression parameters in the shaft of the escape hatch and fix it in the shaft of the escape hatch so that a water seal is formed;

- the use of a carbine for the rescue equipment of a submariner instead of a carabiner for the model halyard to test the operability of the halyard stopper in the shaft of the escape hatch.

The advantage of the new features consists in the absence of the need to use a mock-up, which is absent on the submarine, for trial airlock through the escape hatch when checking its operability.

The essence of the claimed method lies in the fact that in the event of an actual accident of the submarine, before the submariners leave through the escape hatch, its operability is checked using an air hose and a carbine that are part of the submarine's rescue equipment on board the submarine.

The claimed method for checking the operability of the submarine's escape hatch is carried out as follows (Fig. 1, Fig. 2).

1) The air hose of the rescue equipment of the submariner 1 is connected to the air hose of the locking system 2 in the shaft of the escape hatch and is fixed to the ladder 3 in the shaft of the escape hatch so that a water seal is formed that prevents water from entering the hoses.

2) The carbine of the rescue equipment of the submariner 4 is attached to the stopper of the halyard 5 in the shaft of the rescue hatch.

3) Turn on the ventilation on the air supply unit 6, the air from the unit through the air hoses enters the escape hatch shaft.

4) Close the bottom cover of the escape hatch 7 and fill it with water.

5) After filling the shaft of the escape hatch with water, it is sealed, the ventilation is turned off and the compression on the air supply unit 6 is turned on, the air flows through the hoses 1 and 2 into the shaft of the hatch.

6) After equalizing the pressure in the escape hatch shaft and the outboard pressure, the upper hatch cover 8 automatically opens.

7) The top cover 8 is closed and the escape hatch shaft is drained.

The escape hatch is considered operational if, when the compression is turned on, the rate of pressure increase in the hatch shaft meets the requirements of the operational documentation [3], the top cover opened automatically, the rescue equipment carabiner disconnected from the halyard stopper in the hatch shaft, the top cover was closed using a pneumatically controlled valve and after it was closed the escape hatch shaft is drained and sealed. The identified faults are eliminated before the airlock of people.

The advantage of the claimed method consists in the possibility of checking the efficiency of the escape hatch before the submariners leave through it in an emergency without using a special model.

The use of the proposed method will ensure the safety of the exit of submariners through the escape hatch from an emergency submarine lying on the ground, without additional equipment of the submarine with a special model.

Literature

1. Rules for getting out of an emergency submarine (PV PL-99), Ministry of Defense of the Russian Federation Military publishing house, M - 2003.

2. The program and methods for checking the escape hatches of submarines, approved by order of the Commander-in-Chief of the Navy No. 568 of May 31, 215.

3. Air supply unit BPV. Technical description and operating instructions, 9 В2.950.204 TO-LU.

Claims (1)

A method for testing the operability of a submarine's escape hatch, based on the fact that to check the rescue hatch locking system, ventilation is performed using an air supply unit, filling with water and increasing the pressure in the escape hatch shaft until it is aligned with the outboard, characterized in that for this purpose, air is used. the hose and the carabiner, namely the air hose of the diver's rescue equipment, are connected to the air hose of the airlock system in the escape hatch shaft and secured to the ladder in the escape hatch shaft so that a water seal is formed that prevents water from entering the hoses, and the submariner's rescue equipment carabiner is connected to the stopper halyard in the escape hatch shaft.

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