Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like (B63H21/38)

System for processing stripping gas // 2642713
FIELD: machine engineering.SUBSTANCE: stripping gas processing system includes a compressor 100 compressing the stripping gas which is generated in tank T for storing liquefied natural gas of a ship or floating structure, a heat exchanger 200 that cools the stripping gas compressed by the compressor 100 by means of heat exchange with stripping gas supplied to the compressor 100, an expansion device 300 which performs adiabatic expansion of the stripping gas, a gas-liquid separator 400 which performs gas/liquid separation of the stripping gas and supplying liquefied natural gas to the tank T. The system also includes a bypass line, through which stripping gas subjected to adiabatic expansion is fed from downstream position from the device 300 to downstream position from the separator 400.EFFECT: providing efficient processing of the stripping gas.9 cl, 7 dwg

Device and method of fuel supply to ship engine // 2634647
FIELD: engine devices and pumps.SUBSTANCE: device for feeding fuel to a ship engine comprises a high-pressure pump generating higher pressure of liquefied natural gas (LNG) and feeding the LNG under pressure to the engine; a hydraulic motor driving the high-pressure pump; and a lubricating pump supplying lubricating oil to the high-pressure pump.EFFECT: simplification of fuel feed device in ship engine and possibility of fuel feed device installation next to the engine without applying the partition walls.17 cl, 10 dwg

System and method for evaporating gas processing on the ship // 2628556
FIELD: transportation.SUBSTANCE: ship includes the liquefied gas storage tank and the medium pressure gas engine, that uses the liquefied gas stored in the storage tank as the fuel. In addition, the ship also includes a system and method for processing the evaporating gas (BOG), in which the BOG leaves the storage tank and it is compressed. Most part of the BOG is used as the fuel for the ship engines, and the part of the other BOG is liquefied by the BOG cold energy, that has just left the storage tank and returns to the storage tank.EFFECT: effective use of the evaporating gas on the ship.20 cl, 6 dwg

System and method of ship fuel gas supply // 2607893
FIELD: energy.SUBSTANCE: invention relates to ship power plants and can be used for supply of fuel gas. Ship fuel gas supply system comprises engine, creating propulsion force, using fuel gas. Fuel gas, intended for supply into engine, is stored in fuel gas reservoir. Engine is installed in engine room, located at ship’s aft. Fuel gas reservoir is arranged in ship longitudinal direction.EFFECT: enabling possibility of ship space efficient use with minimum length of fuel gas supply line.30 cl, 5 dwg

Liquefied gas processing system for ship // 2597930
FIELD: gas industry.SUBSTANCE: invention relates to systems for liquefied gas processing and can be used on ships. Liquefied gas processing system for ship includes the main supply line of the boil-off gas (BOG) configured to be able to compress the BOG created in the cargo tank by the compressor and to feed it into the main engine as fuel. Auxiliary BOG supply line can compress the BOG created in the cargo tank by the compressor and feed the compressed BOG to the auxiliary engine as fuel. Main LNG supply line is configured to compress the LNG stored in the cargo tank by the pump and to supply the compressed LNG to the main engine as fuel. Auxiliary LNG supply line is configured to compress the LNG stored in the cargo tank by the pump and to supply the compressed LNG to the auxiliary engine as fuel.EFFECT: possibility of efficient use of liquefied gas is achieved.13 cl, 13 dwg

Fuel system of submarine // 2595134
FIELD: shipbuilding.SUBSTANCE: invention relates to submarines and concerns a submarine fuel system. Disclosed is a fuel system of a submarine including external fuel tanks, which are made in form of, for example, solids of revolution and are equipped with pipelines with displacement valves, wherein external tanks are arranged outside hull of submarine and are interconnected by wing-like cowling consisting of two side sections, wherein cowling in middle part is shaped out of submarine and pipelines of external tanks are arranged inside wing-like cowling, wherein on-board sections of cowling are interconnected and connected to housing of submarine by quick-release connections.EFFECT: invention ensures reduction of volume of system when arrangement on submarine.1 cl, 1 dwg

Feed of fuel gas to compressed natural gas tanker power plants // 2546050
FIELD: transport.SUBSTANCE: invention relates to feed of fuel gas to power plants of tankers that carry compressed natural gas and use it as the main power carrier. This process consists in continuous use of, first of all, gas generated in cargo gas tanks as the main power carrier for tanker engines. Excess gas is compressed by compressor at low motion speeds and at stops. Said compressed gas is accumulated in high-pressure vessels (200 bar and higher) and its application when gas consumption exceeds its generation in cargo tanks.EFFECT: higher efficiency of operation of said tankers.7 cl, 1 dwg

Heat exchange complex of steam turbine plant // 2485329
FIELD: power engineering.SUBSTANCE: heat exchange complex of a steam turbine plant comprises a system of main condenser cooling, which comprises the following components serially connected with a cooling pipeline: an ice box, a circulating pump, the main condenser and a drain box, and also a condensate system comprising the main condenser, a condensate pump, a low-pressure feedwater heater and a deaerator, serially connected with a condensate pipeline, besides, the main condenser cooling system is arranged as closed and is equipped with an off-board heat exchanger installed in the ice box. Also the main condenser cooling system comprises a closed circuit of secondary coolant, which is equipped with a low-pressure feedwater heater of the condensate system.EFFECT: invention makes it possible to increase energy efficiency of a vessel.4 cl, 1 dwg

Ship power plant fuel feed device // 2440273
FIELD: transport.SUBSTANCE: invention relates to device for feeding fuel in power plant of a ship carrying liquefied gas from ship liquefied gas tank. Ship comprises at least one liquefied gas tank 2 and onboard power plant, and device to feed fuel into said power plant. Proposed device comprises pump 20, vessel 23, injector 12 and fluid line. Said pump is mounted on vessel bottom. Container is arranged in vessel around the pump to support immersed pump. Aforesaid fluid ejector is arranged inside said vessel to suck off liquefied gas from its bottom. Fluid line (21, 22, 24, 250) communicates pump outlet with injector inlet on one side and, on the other side, it communicates injector outlet with vessel.EFFECT: reduced risks of pump outage or damage.10 cl, 3 dwg

Fuel system submarine // 2127209
The invention relates to shipbuilding, in particular to the fuel systems of submarines

The ship's fuel system submarine // 2123959
The invention relates to shipboard systems submarine, in particular to the fuel system

Cooling system ship power plants // 2082648
The invention relates to shipbuilding and can be used to create the cooling systems of power plants vessels operating in conditions of high contamination of seawater various inclusions, for example, debris, algae, silt, and ships sailing in ice conditions in the presence of a large number of ice chips, such as nuclear or diesel-electric icebreakers

The sealing system installed two concentric with each other coaxially with the propeller shaft of the vessel // 2062734
The invention relates to shipbuilding, in particular, to systems of two seals installed concentric to each other coaxially with the propeller shaft

System disposal of contaminated bilge water in a ship's steam boilers // 2032593
The invention relates to shipbuilding, in particular to the structures of the fuel systems marine steam boilers