Submarine emergency standby buoyancy device

Abstract

An emergency standby buoyancy device for a submarine belongs to safety technical equipment for realizing self rescue of a submarine by emergency floating when the conventional floating capacity of the submarine fails due to faults or accidents, and consists of two standby buoyancy devices. The standby buoyancy device for the pressurized water lifting cabin is composed of the lifting cabin, a high-pressure cold air source system and a gunpowder high-pressure gas source system, wherein the lifting cabin is additionally provided with an air inlet floater hose and a heavy hammer water inlet and outlet hose. The device is used for emergency floating self-rescue during shallow diving and deep diving when a pressurized water lifting cabin is intact and a conventional air source loses efficacy. The standby buoyancy device of the buoyancy air bag is composed of buoyancy air bag assemblies symmetrically arranged on the two sides of the submarine, a high-pressure cold air source system and a gunpowder high-pressure gas source system. The device is used for emergency floating self-rescue in shallow diving and deep diving after the pressurized water lifting cabin is damaged.

Description

[0001] 1. Technical field: Submarine emergency standby buoyancy device belongs to submarine safety Technical Field

[0002] II. Background Technology: A submarine can be trapped underwater due to equipment failure, resulting in a loss of buoyancy during underwater operations. Without timely rescue, the consequences can be extremely serious. Currently, submarine rescue technology worldwide cannot meet the needs for timely and safe rescue in such incidents. Submarine emergency buoyancy devices are a technology that enables submarines to surface and safely rescue themselves in such situations. 3. Summary of the Invention

[0003] (1) The submarine emergency buoyancy device consists of a pressurized water lift cabin buoyancy device and an air bag buoyancy device. Its principle structure is:

[0004] 1. The pressurized water lift cabin spare buoyancy device consists of an installed pressurized water lift cabin and a high-pressure gas source that squeezes seawater out of the cabin.

[0005] (1) Additional contents of pressurized water lift cabin:

[0006] A. A high temperature resistant float air inlet hose is installed at the high pressure gas inlet hatch in the pressurized water lift cabin (see Figure 4 ) to ensure that the hose outlet is above the water in different boat hull postures.

[0007] B. Heavy hammer water inlet and outlet hoses (see pipe 5) are installed at the seawater inlet and outlet in the pressurized water lift cabin to ensure that the water inlet and outlet are below the water in different postures of the hull.

[0008] (2) The high-pressure gas source consists of a high-pressure cold air source and a gunpowder high-pressure gas source:

[0009] A. The high-pressure cold air source consists of multiple parallel high-pressure cold air bottles located at the bottom of the hull, a high-pressure cold air solenoid valve, a one-way valve, a high-pressure cold air connecting pipe, and a starting power supply, power switch, start button, and connecting circuit located on the control panel (see Figure 6 ).

[0010] B. The gunpowder high-pressure gas source consists of a gunpowder column, a gunpowder tube, a gunpowder igniter, a one-way valve, a high-pressure gunpowder gas conduit, and an ignition power supply, a power switch, an ignition button, and a connecting circuit located on the control panel (see Figure 6 ).

[0011] 2. The airbag backup buoyancy device consists of a buoyancy airbag mechanism and a high-pressure gas source for inflating the airbag.

[0012] (1) The buoyancy airbag mechanism is symmetrically arranged in pairs in the non-pressure shell on both sides above the longitudinal axis of the hull (see Figure 1 and Figure 2), consists of an airbag, an airbag shell, an airbag fixing net, and an airbag cabin.

[0013] A. The airbag is made of high-strength rubber tape and is in the shape of a long cylinder. Each airbag is equipped with an overpressure automatic deflation valve, which is usually folded and fixed in the airbag (see Figure 2 and Figure 3 ).

[0014] B. The airbag shell is a buoyancy force-bearing part and is part of the non-pressure-bearing shell. Its upper edge is fixedly connected to the hull by a shaft, and its lower edge is connected to the upper side of the fixed net. The lower edge is fixed to the hull by a spring pin (see Figure 2 and Figure 3 ).

[0015] C. The airbag fixing net is made of high-strength soft ropes and together with the shells transmits buoyancy to the hull. Its upper side is connected and fixed to the lower edge of the shell, and its lower side is fixed to the lower side of the airbag compartment.

[0016] D. The airbag compartment is where the airbag is stored. The upper side is connected to the shell plate shaft, and the lower edge has a spring latch to fix the shell plate. It is also fixed to the lower side of the airbag fixing net (see Figure 2 、 Figure 3 )

[0017] (2) The high-pressure gas source consists of a high-pressure cold air source and a high-pressure gunpowder gas source:

[0018] A. The high-pressure cooling air source consists of multiple high-pressure cooling air bottles located at the bottom of the hull, high-pressure cooling air solenoid valves, one-way valves, high-pressure cooling air connecting pipes, and the starting power supply, power switch, start button, and connecting circuits located on the control panel (see Figure 7 )

[0019] B. The high-pressure gunpowder gas source consists of a gunpowder column, a gunpowder tube, a gunpowder igniter, a one-way valve, a high-pressure gunpowder gas cooling connection pipe, and an ignition power supply, a power switch, an ignition button, and a connecting circuit located on the control panel (see Figure 7 ).

[0020] (2) The submarine's emergency standby buoyancy device activation process is divided into four accident conditions for emergency surfacing to the surface.

[0021] 1. When the conventional buoyancy gas source fails, the pressurized water lift cabin is intact, and the diving depth is shallow, manually turn on the high-pressure cold air solenoid valve to start the power switch, press the start button, the solenoid valve starts the high-pressure cold air in the high-pressure cold air bottle through the valve, the cold air duct, the one-way valve and the float hose into the pressurized water lift cabin, and the seawater in the cabin is discharged out of the boat from the weight hose, reducing the weight of the boat. When the weight is less than the buoyancy, the submarine begins to float. During the floating process, when the air pressure in the cabin is greater than the water pressure outside the cabin, the high gas is automatically discharged out of the cabin from the weight hose until it floats to the surface, realizing the safe self-rescue of the crew and the submarine.

[0022] 2. When the conventional buoyancy air source fails, the pressurized water lift cabin is intact, the diving depth is deep, and the water pressure exceeds the air pressure in the cold air cylinder, manually turn on the gunpowder ignition power switch, press the ignition button, the gunpowder igniter is energized to ignite the end face of the gunpowder column and start burning, generating high-temperature and high-pressure gunpowder gas that passes through the conduit, the one-way valve and the float hose into the pressurized water lift cabin, pressing the seawater in the cabin out of the cabin through the weight hose, reducing the weight of the submarine. When the weight is less than the buoyancy, the submarine begins to float. During the floating process, when the gunpowder gas pressure in the cabin is greater than the seawater pressure, the gunpowder gas is automatically discharged out of the cabin from the weight hose until it floats to the surface, realizing the safe self-rescue of the crew and the submarine.

[0023] 3. When the pressurized water lift cabin is damaged, the conventional buoyancy air source fails and the diving depth is shallow, manually connect the buoyancy airbag and use the high-pressure cold air solenoid valve to start the power switch. Press the start button, and the high-pressure cold air in the high-pressure cold air bottle passes through the solenoid valve and enters the buoyancy airbag through the one-way valve high cold air duct to inflate it, push open the spring pin at the bottom of the shell plate, the shell plate opens and pulls open the airbag fixing net. The buoyancy generated by the airbag being filled with air is transmitted to the hull through the shell plate and the fixing net, and the buoyancy of the submarine increases. When the buoyancy is greater than the gravity, the submarine begins to float. When the air pressure in the airbag is greater than a certain value of seawater pressure, the automatic deflation valve on the airbag automatically opens and deflates the air to prevent the airbag from being ruptured, until the submarine floats to the surface, realizing the safe self-rescue of the crew and the submarine.

[0024] 4. When the pressurized water lift cabin is damaged, the conventional buoyancy air source fails, and the diving depth exceeds a certain value, the buoyancy airbag is manually connected to the gunpowder ignition power switch, the ignition button is pressed, the igniter ignites the end face of the gunpowder column, and the high-temperature and high-pressure gas generated by the combustion of the gunpowder is cooled in the water through the cooling tube, and then enters the buoyancy airbag through the one-way valve. The airbag inflates, pushes the spring pin on the lower edge of the baffle and opens, the airbag is filled with air, and the buoyancy generated is transmitted to the hull through the baffle and the fixed net. The buoyancy of the submarine increases. When the buoyancy is greater than the gravity, the submarine begins to float. When the air pressure in the airbag is greater than a certain value of the sea water pressure, the automatic deflation valve on the airbag automatically opens and deflates to prevent the airbag from being ruptured, until the submarine floats to the surface, realizing the safe self-rescue of the crew and the submarine.

[0025] IV. Description of the drawings

[0026] (1) Name of the attached figure

[0027] Figure 1 , schematic layout of submarine emergency buoyancy device in the hull

[0028] Figure 2 , AA section schematic diagram of submarine body

[0029] Figure 3 , cross-sectional principle diagram of the buoyancy airbag inflating (AA).

[0030] Figure 4 Schematic diagram of the air intake hose in the pressurized water lift cabin

[0031] Figure 5 Schematic diagram of the water inlet and outlet hoses of the weight in the water pressure lift cabin

[0032] Figure 6 Schematic diagram of high-pressure gas source and control circuit of the backup buoyancy device of the pressurized water lift cabin

[0033] Figure 7 , Buoyancy airbag spare buoyancy device high pressure air source and control circuit schematic diagram

[0034] Figure 8 , Schematic diagram of the principle of automatic air release valve with excessive pressure difference when closed

[0035] Figure 9 , Schematic diagram of the principle of automatic deflation valve with excess pressure difference during deflation

[0036] (2) The series of symbols in the figure represent names.

[0037] submarine hull Submarine control cabin

[0038] High-pressure cold gas bottle compartment Pressurized water lift

[0039] Buoyancy air bag shell board Lower hull anatomical line

[0040] Buoyancy airbag Buoyancy airbag fixed net

[0041] Buoyancy tank Float air inlet hose

[0042] float Heavy hammer water inlet and outlet hose

[0043] Heavy Hammer High-pressure cold air cylinder

[0044] gunpowder column gunpowder igniter

[0045] Gunpowder column tube Powder gas duct and cooling duct

[0046] High pressure air conditioning solenoid valve High-pressure air conditioning solenoid valve starting power supply

[0047] Power switch Start button

[0048] Gunpowder ignition power supply Power switch

[0049] ignition button One-way valve

[0050] Overpressure automatic release valve Overpressure automatic deflation valve body

[0051] valve Valve compression spring

[0052] Valve body fixing nut Airbag fabric

[0053] air outlet Inside the buoyancy bag

[0054] Vitality airbag outside

[0055] Five specific implementation methods. The preferred implementation method for the submarine emergency backup buoyancy device is to have two sets of backup buoyancy devices. One set is a pressurized water lift cabin backup buoyancy device, which consists of a pressurized water lift cabin with a float air inlet hose installed at the air inlet and a weighted hammer water inlet and outlet hose installed at the water inlet and outlet, and two high-pressure gas sources. One is a high-pressure cold air source, which consists of multiple parallel high-pressure cold air cylinders, a high-pressure cold air solenoid valve, a one-way valve, a high-pressure cold air conduit, and a high-pressure solenoid valve starting power supply, power switch, start button, and connecting circuit installed on the control panel; the other is a high-pressure gunpowder gas source, which consists of a gunpowder column, a gunpowder tube, an igniter, a high-temperature and high-pressure gunpowder gas connecting conduit, a one-way valve, and an ignition power supply, power switch, ignition button, and connecting circuit installed on the control panel. The other set is a buoyancy bag backup buoyancy device, consisting of a buoyancy bag, an automatic overpressure differential deflation valve on the bag, a slat, a bag securing net, a bag compartment, and two high-pressure gas sources. One is a high-pressure cooling air source, consisting of multiple parallel high-pressure cooling air bottles, a high-pressure cooling air solenoid valve, a one-way valve, a high-pressure cooling air connecting pipe, and a solenoid valve starting power supply, power switch, start button, and connecting circuits located on the control panel. The other is a high-pressure gunpowder gas source, consisting of a gunpowder column, a gunpowder tube, an igniter, a high-temperature and high-pressure gunpowder gas cooling connecting pipe, a one-way valve, and an ignition power supply, power switch, ignition button, and connecting circuits located on the control panel.

Claims

1. The submarine emergency standby buoyancy device is a self-rescue technical equipment for emergency buoyancy to the surface when the submarine's conventional buoyancy equipment fails due to equipment failure or accident underwater. Its characteristics are: It is composed of a pressurized water lift cabin spare buoyancy device and a buoyancy air bag spare buoyancy device. The pressurized water lift cabin spare buoyancy device has a pressurized water lift cabin with a float air inlet hose installed at the cabin air inlet, and a heavy hammer water inlet and outlet hose installed at the water inlet and outlet, and two high-pressure gas sources. One is a high-pressure cold air source, which has multiple parallel high-pressure cold air bottles, high-pressure cold air solenoid valves, one-way valves, high-pressure cold air connecting ducts and a high-pressure cold air solenoid valve starting power supply, power switch, start button, and connecting circuits arranged on the control panel; the other is a high-pressure gunpowder gas source, which consists of a gunpowder column, a gunpowder tube, an igniter, a high-temperature and high-pressure gunpowder gas connecting duct, a one-way valve, a gunpowder ignition power supply, and a power switch arranged on the control panel , ignition button, and connecting circuit; the buoyancy airbag spare buoyancy device includes a buoyancy airbag, an automatic over-pressure difference deflation valve on the airbag, a shell board, a buoyancy airbag fixing net, an airbag cabin and two high-pressure gas sources, one is a high-pressure cold air source, which includes multiple parallel high-pressure cold air bottles, high-pressure cold air solenoid valves, a one-way valve, a high-pressure cold air connecting duct and a high-pressure cold air solenoid valve starting power supply, power switch, starting button, and connecting circuit located on the control panel; the other is a high-pressure gunpowder gas source composed of a gunpowder column, a gunpowder tube, an igniter, a high-temperature and high-pressure gunpowder gas cooling connecting duct, a one-way valve and a gunpowder ignition power supply, power switch, ignition button, and connecting circuit located on the control panel.

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