B63B25/16 Heat-insulated (insulating panellings b63b0003680000; heating or cooling b63j)(23)
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
FIELD: machine engineering.SUBSTANCE: airtight and isothermal tank is integrated into the structure with a supporting wall (3), to which the wall of the tank adjoins. A heat-insulating barrier is mounted on the supporting wall (3) and is formed by insulating blocks (1) in the form of rectangular parallelepipeds arranged in parallel rows separated from each other by gaps (10). The sealed barrier is mounted on a heat-insulating barrier and comprises a metal membrane made of metal sheets (11) hermetically welded to each other. On surface of each insulating block of the heat-insulating barrier opposite the supporting wall (3) are at least two predominantly orthogonal connecting metal strips (5, 6). They extend parallel to the insulating block sides and are welded to the sheets (11) of the metal membrane installed on the insulating block. At that, the connecting strips are rigidly connected to the insulating block on which they are arranged. Each of the plurality of sheets (11) of the metal membrane comprises at least two orthogonal folds (12a, 12b) parallel to the sides of the heat insulating blocks (1) and placed in the gaps (10) between the insulation blocks. A ship for transportation of a cold liquid product having a double housing inside which the above-described container is mounted. Use of the ship for the purpose of loading or unloading a ship by supplying a cold liquid product through insulated pipes from a shore or a floating storage to the ship tank or to the shore or floating storage tank from the ship tank. System for transporting cold liquid product comprising above-described ship, insulated pipes connecting the tank mounted in the ship hull with shore or floating storage, and a pump to supply cold liquid product through isolated pipes from or to floating or shore storage to or from the ship tank.EFFECT: improved airtightness.25 cl, 28 dwg
FIELD: machine engineering.SUBSTANCE: sealing and heat-insulating wall of a fluid reservoir is proposed, comprising: a heat insulating panel (1) having an inner side and sides, and a sealing plate (7), the inner side of which is designed to contact the fluid contained in the tank, and its outer side is rigidly attached to the inner side of said panel (1) at the locations of the attachment zones (14), the sealing plate (7) being provided with at least one rib (8; 9) falling from its inner side and elongated in the direction d1 (X; y). The inner side of the heat-insulating panel (1) is provided with a slit (15; 16) for loosening the stresses located between two adjacent attachment zones (14) located on each side of said rib (8; 9), and mentioned slot has a longitudinal axis oriented in the direction d1 (X, y) to allow the deformation of the rib in a direction transverse to the direction d1 (X, y). The length of the slit (15; 16) for stress relaxation is less than the size of the heat-insulating panel (1) along the axis of this slot.EFFECT: improving the performance of a cryogenic storage tank.17 cl, 12 dwg
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
FIELD: mechanical engineering, shipbuilding.SUBSTANCE: invention relates to the field of shipbuilding and the operation of vessels for transportation of cold liquids. The method of protecting the side plating (1, 11) of the vessel used for the transportation of cold liquids is proposed, according to which the side plating (1, 11) of the vessel is protected at the place (4, 14) of connection of the marine pipeline manifolds (3, 13) and the port pipeline manifolds used for the tranfer of the cold liquids through the material layer (5, 15) which protects the side plating of the vessel and is mounted permanently or removably on the vessel, and which is made of the solid material. The invention also relates to such a vessel.EFFECT: invention provides improved operational reliability of the vessel hull during the cargo operations related to the cold liquids.13 cl, 2 dwg
FIELD: gas industry.SUBSTANCE: proposed is a liquefied gas processing system for a vessel, which includes a cargo tank storing liquefied natural gas and an engine using the liquefied natural gas stored in the cargo tank as fuel. Liquefied gas processing system includes: the first evaporating gas flow, which is formed from the liquefied natural gas in the cargo tank and is discharged from that tank; the second evaporating gas flow, which is supplied as fuel into the engine in the first flow; and the third evaporating gas flow, which is not supplied into the engine in the first flow. First flow is compressed in a compressor and then is divided into the second flow and the third flow. Third flow is liquefied by heat exchange with the first flow in a heat exchanger, as the result of which the evaporating gas is processed without the use of a repeated liquefaction device, which uses a separate cooler.EFFECT: liquefied gas processing.13 cl, 13 dwg
FIELD: gas industry.SUBSTANCE: invention relates to production of liquefied natural gas on Arctic seas continental plate and can be used for accumulation, storage and distribution of liquefied natural gas (LNG). Ice-resistant ship hull (1) of floating LNG storage consists of circular inclined board with flat bottom (2), in the middle of which spherical bulge (3) is arranged. From above hull (1) is closed by deck (4) inclined to boards. In ship hull bottom (2) spherical bulge (3) through heat-insulating layer (5) cryogenic spherical reservoir (6) is installed with double walls and heat insulating vacuumed cavity between them. LNG filling and output cryogenic pipelines (7) are located inside reservoir (6) from its head (8) to lower level. Outside tank (6) pipelines (7) are located in passage (9) closed from outer side. Under deck superstructure (10) and deck (4) shaft (11) with lift and ladders is located to ice-resistant ship hull (1) flat bottom (2). On flat bottom (2) process compartments (12) are located, as well as combined power plant propulsor compartment (13).EFFECT: enabling possibility of simplified LNG production and transportation system on Arctic seas continental plate, as well as improving its reliability.1 cl, 5 dwg
FIELD: ship building.SUBSTANCE: invention relates to ship building and sea transport and relates to membrane tank structure for transportation of liquefied natural gas at low temperatures. Disclosed is a membrane tank for liquefied natural gas (type VM), having a primary and secondary outer inner membranes, between which, as well as between the inner surface of ship compartment and secondary membrane there is a thermo-insulating layer in the form of rigid heat insulating material, at the same time between primary and secondary tank membranes as well as between the surface of compartment and secondary membrane pressurized volumes are formed for creation of low vacuum in them, while in thermal insulating layer cavities are formed filled with light weight heat insulator.EFFECT: technical result consists in reduction of heat conductivity of membrane tank and, consequently, decrease of liquefied natural gas losses.6 cl, 3 dwg
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
FIELD: gas industry; construction.
SUBSTANCE: invention relates to design for storage of liquefied natural gas (LNG) in offshore structure housing compartment containing self-supported primary barrier, secondary barrier surrounding self-supported primary barrier, and space for access between self-supported primary barrier and secondary barrier, where self-supported primary barrier represents self-supported tank LNG and is connected with compartment housing by means of support devices, penetrating into secondary barrier, secondary barrier is impermeable for liquid heat insulation, connected with housing inner surface, and is sealed with support devices with help of flexible watertight seal so that self-supported primary barrier and secondary barrier are connected separately with housing compartment for prevention of force transfer between primary barrier and secondary barrier.
EFFECT: increased structure reliability and manufacture ability.
7 cl, 2 dwg
FIELD: transportation.SUBSTANCE: tank is intended for storage and transportation of liquefied natural gas. Tank (71) comprises a heat insulation, containing multiple adjacent insulating units (28) on bearing structure, and a seal, which includes multiple sealing metal sheets (25) located on insulating units (28) and welded to each other. Mechanical connection elements (11) pass through heat insulation at level of edges of insulating units (28) and held insulating units in support contact on bearing structure (3). Metal sheets (25) are located so that edges of metal sheets are shifted relative to edges of underlying insulating units (28). Metal sheets (25) are retained in support contact on insulating units (28) only by means of connecting elements. Mechanical connection elements are attached to metal sheets (25) at level of areas (11) fixing at distance from edges of metal sheets.EFFECT: high reliability.19 cl, 13 dwg
FIELD: heating.SUBSTANCE: invention relates to creation of blocks of a heat insulation tight wall from polymer composite materials (PCM) of new type reservoirs for transportation of liquid goods and liquefied gases. A block is manufactured in a single process stage using forming method of closed type. The block has a single shape from PCM, having required properties in the range of temperatures -163 ÷ +50°C. Forming is carried out by one-time impregnation of layers of dry reinforcing material by a polymer binder, creating a single bearing layer, covering at all sides the heat insulation panels, which provides for solidity of entire structure of the block and increases its strength and reliability.EFFECT: reduced duration of a block manufacturing cycle, reduced labour intensiveness of their manufacturing.5 dwg
FIELD: machine building.SUBSTANCE: design (21) of flanged part of the tank dome includes: flanged part projecting outside from the external surface of side wall of the tank dome ensured at section of the main tank body, made with possibility to store LT liquefied gas; tank casing (6) with possibility to cover section of the main tank body with space (5) between them; and compensation rubber section (11) ensured between the flanged part (22) and casing (6) of the tank, and made with possibility to tight the space (5), at that section of the heat transfer suppressing material, i.e. fibre reinforced plastic, is ensured on at least specified section of the flanged part (22), at that specified section is located between the side wall (3a) of the tank dome (3) and compensation rubber section (11).EFFECT: temperature decreasing of LT liquefied gas stored in the tank upon ambient temperature rise due to the heat-insulating materials.9 cl, 19 dwg
FIELD: transport.SUBSTANCE: heat-insulating sealed wall of reservoir for compressed natural gas consists of blocks fixed on vessel hull using mechanical fixture which blocks include primary and secondary heat-insulating panels, primary sealing layer fixed on the blocks and secondary sealing layer located between them. The blocks are interconnected using bands of sealing layers, as well as heat-insulating materials placed in gaps between blocks. Wall blocks have forming coverage from all sides made of polymeric composite materials creating enclosed volume simultaneously surrounding primary and secondary heat-insulating panels. The blocks include primary sealing layer which is made of flexible material and attached directly to panels by means of sticking primary heat-insulating panel on the outside of forming coverage with partial transition to secondary heat-insulating panel forming coverage. In this structure, gaps between block panels are closed by bands of corresponding sealing layer which bands are attached to panels by sticking on portions of primary sealing layer at panel edges.EFFECT: lowering labour consumption during manufacturing and assembling reservoir in vessel hull, lowering reservoir mass while increasing design reliability and its heat-insulating properties.7 cl, 4 dwg
FIELD: transport.SUBSTANCE: invention relates to transport shipbuilding, means for marine freight and storage of liquefied natural gas (LNG) and concerns design of membrane cargo capacity for its transportation and storage. Reservoir for transportation and storage of LNG includes structured thermally insulated shell mounted on carrying structure of freight vessel or capacity. The shell consists of several layers. In this structure, one layer is metal and sealed and contacts with liquefied gas being transferred or stored. The layer contains undulating corrugations. Wave tops and troughs form zigzags. Undulating indents between corrugations on the outside are filled with porous synthetic material or paste based on chopped glass fibre and binding agent.EFFECT: higher strength and reliability of membrane cargo capacity for liquefied natural gas transportation and storage, lower probability of sealing failure.3 cl, 10 dwg
FIELD: transport.SUBSTANCE: invention relates to shipbuilding and concerns vessels or floating platforms intended for liquid transportation and storing, specifically cryogenic transportation of compressed natural gas or other gases in liquefied state. The invention claims vessel or floating platform (1) for transportation and storing of liquid (3) representing compressed gas, preferably methane, ethylene, propan or butane, cooled in at least one large tank (2), preferably cylindrical with polygonal cross-section, fitted with heat insulation (2a) and having large dimensions, herewith, at least its minimum size in horizontal plane, specifically its width, exceeds 20 m, and preferably is 25 to 50 m, and volume exceeds 10000 m3, herewith, the mentioned large tank (2) is installed inside vessel hull (4) on load carrying structure (11). Vessel or floating platform contains multiple devices for detection of liquid disturbance inside the mentioned large tank (the mentioned large tanks). Such devices are called "beacon lights" (5, 5-1, 5-2) and contain: a) vibration sensor representing vibration accelerometer, b) electronic computing module, containing microprocessor and built-in memory and made capable to process a signal measured by the mentioned vibration sensor (5a) in order to at least remove vessel own background noise, c) means for signal transmission after its processing by the mentioned electronic computing module to central module or controller (6) preferably installed on bridge.EFFECT: higher safety of liquid transportation and storing on vessel or floating platform.15 cl, 13 dwg
FIELD: transport.SUBSTANCE: invention relates to shipbuilding and concerns vessels for compressed natural gas transportation. Invention covers vessel having load-carrying structure and sealed, heat-insulated forward tank (53) for compressed natural gas with several bulkheads (54, 55, 56, 57, 58, 59, 60, 61, 62, 63) attached to load-carrying structure. Each bulkhead contains main sealing barrier, main heat-insulating barrier, auxiliary sealing barrier and auxiliary heat-insulating barrier which are located in tandem through-thickness in direction from inner surface of forward tank to its outer surface. The first bulkhead (56) and the second bulkhead (63) among the mentioned tank bulkheads are adjacent to apex (65). The main sealing barrier of the first bulkhead contains at least one first belt (67) connected at apex with load-carrying structure by pillar. The main sealing barrier of the second bulkhead contains at least one second belt (64) connected at the mentioned apex (69) with load-carrying structure by the mentioned pillar.EFFECT: simplification of compressed natural gas tank design, higher vessel capacity.10 cl, 8 dwg
FIELD: transport.SUBSTANCE: invention relates to ship building, particularly to ship cargo compartments for transportation of liquefied natural gas at low temperatures. Proposed heat insulation represents one or several evacuated shells accommodating powder filler. Note here that every said shell ensures heat protection of one or several ship compartment walls.EFFECT: minimised gas losses.4 cl, 2 dwg
FIELD: transport.SUBSTANCE: invention relates to production of isolating and sealing wall of reservoir that makes a part of load bearing structure, for example, ship hull. Method of fabricating heat-insulated reservoir for keeping fluid medium, for example, condensed gas, built in ship load bearing structure 50 consists in that prefabricated bar 25, of more or less rectangular shape, is laid over flexible belt 25 that ensures integrity of secondary sealing membrane 30. Fitting said bar in place comprises the following jobs: two parallel glue beads 26, 26' are applied on bottom surface of said bar 25. Note her that said beads are separated by lengthwise central gap 28 without glue. Said bar with 25 glue coat is glued to said belt 35 by pressing it against said belt so that said central gap 38 is filled, at least, partially, with glue to form continuous layer on bar bottom surface. Note here that continuous layer enhance glue joint of belt 35 for perfect tightness of aforesaid primary sealing membrane 30.EFFECT: higher tightness.8 cl, 5 dwg
FIELD: construction.SUBSTANCE: vessel includes cargo compartments in the body, where heat-insulated prismatic tanks of liquefied gases are installed, which are made of aerated concrete, and the inner surface of their walls is lined with a sealing thin-walled coating, made of metal that ensures transportation of liquefied gas under cryogenic temperatures. Heat-insulated tanks are made as inbuilt into compartments or as inserts. The aerated concrete contains additives in the form of synthetic or metal fibre. The sealing thin-walled coating of tanks is made of metal, preferably of stainless steel or from nickel-containing, or chrome-containing alloy, or in the form of a thin-walled membrane.EFFECT: invention provides transportation of low-temperature liquefied natural gases at long distances in case of considerable drops of gas and ambient temperatures.7 cl, 2 dwg
FIELD: transport.SUBSTANCE: method of cryogenic gas storage and transportation includes cooling the said gas to liquid state, pouring the liquefied gas into, at least, one tank and keeping up designed temperature and pressure therein by abstracting gassy heat. The tank with cryogenic liquid is separated from ambient medium by means of a refrigerating chamber incorporating, in its walls, a heat-insulator. The said refrigerating chamber space is filled with a neutral gas that does not get condensed at a cryogenic liquid temperature and that is kept at the neutral gas surplus pressure.EFFECT: simpler design of heat insulation and storing capacities.
The invention relates to the field of shipbuilding, and specifically to the design of the decks of tankers