1108results about "For bulk goods" patented technology

The invention belongs to the technical field of low-temperature liquid cargo storage, and particularly relates to an enclosure structure and an enclosure system at a dome corner area of a low-temperature liquefied gas storage tank, and the enclosure structure is arranged at the junction of a dome in the low-temperature liquefied gas storage tank, the top surface of a cabin and a front / rear bulkhead; comprising a corner insulation box connected to a corner, and a plane insulation box connected to a wall surface in the extension direction of the two ends; the corner area secondary-layer steel plate is attached to the inner side of the corner of the corner insulation box, and the corner area main-layer steel plate is welded to the inner side of the corner of the corner area secondary-layer steel plate through the connecting plate. The secondary shielding layer is attached to the surface of the insulation box and is welded with the corner area secondary layer steel plate; the main shielding layer is arranged on the inner side of the secondary shielding layer and is welded with the corner area main layer steel plate; and a supporting fixing plate is arranged between the two. Compared with the prior art, the problems that when an existing enclosure system structure is applied to the dome, stress is large, deformation is large, and structural stability is poor are solved. According to the scheme, the sealing performance and the use reliability of the low-temperature liquefied gas storage tank at the dome corner area are guaranteed.

The invention belongs to the technical field of ship liquid cargo tanks, and discloses a liquid cargo tank heat insulation system and an installation method thereof. The liquid cargo tank heat insulation system comprises a filling mechanism, a fastening mechanism and a plurality of heat insulation blocks, the multiple heat insulation blocks are sequentially laid on a liquid cargo tank shell, each heat insulation block is in an I shape, a splicing gap between any two adjacent heat insulation blocks is in a shape like a Chinese character'zhong ', the splicing gaps are filled with the filling mechanism, and the fastening mechanism is arranged between the filling mechanism and the heat insulation blocks. A fastening mechanism penetrates through each heat insulation block, the bottoms of the fastening mechanisms are fixedly connected with the liquid cargo tank shell, the tops of the fastening mechanisms extend out of the heat insulation blocks, and the fastening mechanisms are configured to fasten the corresponding heat insulation blocks to the liquid cargo tank shell. According to the liquid cargo tank heat insulation system, the connecting stability of the heat insulation blocks on the liquid cargo tank shell is guaranteed, the heat insulation blocks are prevented from falling off from the liquid cargo tank shell, the filling stability of the filling mechanisms in the splicing gaps is also guaranteed, the filling mechanisms are prevented from falling off, the cost is low, and construction installation and repairing operation are convenient.

The present invention relates to an ammonia recovery / discharge system and a control method therefor. The ammonia recovery / discharge system of the present invention is designed for a ship using ammonia as fuel and comprises: an ammonia tank; an engine; a fuel supply unit; a fuel recovery unit; an air supply line; an air discharge line; and a working fluid circulation unit, wherein the working fluid circulation unit comprises an ejector that supplies high-pressure working fluid to circulate air or ammonia in the working fluid circulation unit.

The invention discloses a method for preserving heat of a urea NaOH and Mg (OH) 2 storage cabin, and aims at a ship which is provided with an SCR (Selective Catalytic Reduction) system, an EGR (Exhaust Gas Recirculation) system, an iCER (Initial Continuous Emission Reduction) system and a desulfurization system and needs to store urea, NaOH or Mg (OH) 2. Condensed water of the air conditioning unit is collected and then introduced into the storage cabin in a gravity mode, and the condensed water generation amount and the condensed water temperature of the air conditioning unit are analyzed and calculated. On the premise that the cabin capacity meets the condition, condensate water is used for cooling the urea cabin and then discharged into the clean cabin bottom water cabin, and the cooling capacity of the condensate water is utilized to the maximum extent. In winter or in a cold area, when the air conditioning unit does not need to operate, in order to avoid too low temperature of the solution cabin, the storage cabin can be heated by using the discharged water in the clean cabin bottom water cabin before discharging, so that the storage temperature of the urea, NaOH or Mg (OH) 2 solution is ensured to be 10-35 DEG C.

The present invention relates to a fuel processing system and a ship comprising the same, comprising: a fuel supply unit for supplying fuel discharged from a fuel storage tank to a demand site; a fuel recovery unit that recovers the remaining fuel returned from the demand location; and a fuel processing unit for collecting the fuel output from the fuel supply unit or the fuel recovery unit, the fuel processing unit including a plurality of absorption tanks for generating waste water by collecting the fuel with water, the fuel output from the fuel supply unit or the fuel recovery unit sequentially passes through the plurality of absorption tanks and is dissolved in water stored in the absorption tanks, thereby converting the fuel into waste water.

The invention relates to a wall (11) for a leaktight and thermally insulating vessel for storing a liquefied gas, said wall (11) comprising, in succession in a thickness direction from the outside to the inside of the vessel, a leaktight outer barrier (13), a thermally insulating barrier (14) and a leaktight inner barrier (15), the thermally insulating barrier (14) having a gas phase at an absolute pressure of less than 1 Pa and comprising:—a radiative multilayer insulation cover (47) which extends at right angles to the thickness direction, said radiative multilayer insulation cover (47) comprising a stack of a plurality of sheets which are made of metal or polymer material coated with a metal and which are separated from one another by a textile layer; and-insulating elements (51) which have an open-celled porous structure and are arranged between the radiative multilayer insulation cover (47) and the leaktight outer barrier (13).

The present invention provides a tank supporting structure for a hull which allows a hull having a hull outer plate and a hull inner plate disposed above the hull outer plate to support a liquefied gas tank disposed in a hold surrounded by the hull inner plate, said tank supporting structure comprising: at least one protruding deck which extends substantially horizontally from the hull inner plate toward the inside of the hold; a plurality of tank skirts which support the liquefied gas tank by being joined to the protruding deck or the hull inner plate and which include a first skirt joined to an upper surface of the protruding deck; and a plurality of skirt back reinforcing materials which reinforce joined parts of the plurality of tank skirts by being joined to the protruding deck or the hull inner plate and which include a first skirt back reinforcing material joined to a lower surface of the protruding deck.

A cold energy recovery facility includes a liquid hydrogen tank configured to store liquid hydrogen a first circuit configured to circulate a first working medium, a second circuit configured to circulate a second working medium having a freezing point higher than the first working medium, a first turboexpander provided in the first circuit, the first turboexpander being configured to be driven by the first working medium in a gas state, a second turboexpander provided in the second circuit, the second turboexpander being configured to be driven by the second working medium in a gas state, a first heat exchanger configured to vaporize the liquid hydrogen from the liquid hydrogen tank by heat exchange with the first working medium, a second heat exchanger configured to vaporize the first working medium in a liquid state by heat exchange with the second working medium, and a third heat exchanger configured to vaporize the second working medium in a liquid state by heat exchange with a heat medium, wherein the first circuit and the first turboexpander form a part of a first thermodynamic cycle that uses the liquid hydrogen as a low-temperature heat source in the first heat exchanger, and the second circuit and the second turboexpander form a part of a second thermodynamic cycle that uses the first working medium as a low-temperature heat source in the second heat exchanger.

A pressure control system according to a fifth embodiment of the present invention comprises: a liquefied carbon dioxide storage tank (110) for storing liquefied carbon dioxide; a pressure discharge unit (160) for preventing damage to the liquefied carbon dioxide storage tank (110) due to excessive pressure caused by boil-off gas inside the liquefied carbon dioxide storage tank (110); and a gas supply unit (190) for supplying, to an air lubrication system (ALS) or a ballast water treatment system (BWTS), the vaporized carbon dioxide having passed through the pressure discharge unit (160), and thus the boil-off gas is to be utilized in many ways in a ship.

A thermal management system for a marine vessel includes a closed loop circuit in which heat transfer fluid circulates, a first refrigeration component cooled or heated by the heat transfer fluid and configured to cool or heat air within a compartment on the marine vessel, and an open loop circuit. A pump is configured to pump water from a body of water in which the marine vessel is operating, through the open loop circuit, and back to the body of water. A second refrigeration component is configured to exchange heat between the closed loop circuit and the open loop circuit, and a water heater is configured to receive heat from the closed loop circuit to thereby heat potable water in the water heater.

The utility model discloses a liquid tank multidirectional enclosure damping system for an LNG (liquefied natural gas) ship, which belongs to the technical field of enclosure damping systems for LNG ships and comprises mounting racks, an inner tank and baffles which are distributed front and back, the baffles are detachably connected to two ends of the mounting racks, mounting plates are symmetrically mounted between the mounting racks, lifting plates are symmetrically mounted on the inner sides of two ends of the mounting racks, and the lifting plates are detachably connected with the inner tank. Shock absorbers are fixedly installed on the two sides of one end of each lifting plate, one ends of the shock absorbers are fixedly connected with the installation frame, the inner tank is installed between the lifting plates, and shock absorption and buffering assemblies are installed at the inner ends of the installation plates. The first buffer springs and the second buffer springs conduct transverse damping, the situation that impact force generated by shaking causes certain damage to the enclosure system and further shaking of liquid goods in the inner cabin tank is avoided, and when the impact force is large, the inflatable air bag can prevent the inner cabin tank from further moving.

To solve the problem in which, even though an ideal thin layer sand cover construction method is to suppress generation of pollution and inroads of sand cover into a water bottom ground as much as possible, to maintain the planned shape and state of the thin layer sand cover, and to construct the thin layer sand cover in a short time, however, a thin layer sand cover construction method at present is at the stage of intending the suppression of generation of the pollution and spreading out the sand uniformly.SOLUTION: In the solution of this invention, formation of a thin layer sand cover is performed which secures the constitution of sand cover, a sand cover thickness and a density state that are plan requirements in a sand cover unloading bucket beforehand, on the ship of a sand cover work ship. Then, the bucket loading the formation sand cover is lowered to the water bottom and is landed calmly, the bucket is raised to a height of the sand cover thickness and an automatic opening / closing type bottom slab is opened at the same time, and the formation sand cover is unloaded calmly. In this method, the thin layer sand cover is constructed in a short time without a substantial underwater fall of the formation sand cover, while maintaining the shape and state of the sand cover and also suppressing the generation of pollution.SELECTED DRAWING: Figure 9

The invention belongs to the technical field of liquid carbon dioxide transport ships, and particularly relates to a novel liquid carbon dioxide transport ship adopting a fiber composite liquid cargo tank. The ship comprises a main ship body. The main ship body comprises a tail module, a cabin module, a cargo compartment module and a head module. A plurality of independent cargo compartment chambers are arranged in the cargo compartment module, and the adjacent cargo compartment chambers are separated through transverse compartment walls; an independent carbon dioxide liquid cargo tank, a top ballast tank and a bottom ballast tank are arranged in each independent cargo compartment; the carbon dioxide liquid cargo tank is made of a fiber composite material or a combination of steel and the fiber composite material and comprises an inner container and a winding layer, and the cross section of the carbon dioxide liquid cargo tank is of a bilateral symmetry polygonal structure. The carbon dioxide liquid cargo tank is connected with the hull structure through supporting blocks. The liquid carbon dioxide transport ship is high in cargo hold area capacity utilization rate, high in stability and reliability and low in capacity requirement for hoisting facilities in the construction process.

The present disclosure relates to a method and device for optimizing navigation of a ship. The method according to an embodiment of the present disclosure may generate recommended navigation information about a navigation route of a ship, based on navigation plan information associated with a departure location and an arrival location of the ship, predict a boil-off gas (BOG) generation amount of the ship and a tank pressure value of the ship, based on the recommended navigation information, and obtain optimal navigation information associated with operation control of the ship, based on the BOG generation amount and the tank pressure value.

A ship and a method are for bringing liquified gas, such as liquified carbon dioxide, CO2, from an onshore terminal for captured gas across a sea to a subsurface permanent storage reservoir. The ship has a loading line for communicating liquified gas from the onshore terminal into at least one vessel, and a processing plant. The processing plant of the ship has an injection processing module configured for injecting liquified gas into the subsurface permanent storage reservoir, wherein the injection processing module is operatively connected to the at least one vessel and an injection line provided with a connector for connecting to a flexible injection hose being in fluid communication with the subsurface permanent storage reservoir.

Disclosed herein is a control system for a reliquefaction system for ships, in which boil-off gas generated from liquefied gas in an onboard storage tank is compressed by a compressor and the compressed boil-off gas is cooled and reliquefied through a heat exchanger. The control system includes: a reliquefaction line connecting the compressor to the storage tank; a control valve disposed downstream of the heat exchanger on the reliquefaction line to adjust a flow rate of boil-off gas flowing through the reliquefaction line; a flow rate regulator configured to control a degree of opening of the control valve; and a load controller configured to send a signal for adjusting a load of the reliquefaction system to the flow rate regulator, wherein, in the event of changes in load of the reliquefaction system, the load controller sends a predetermined set point indicative of a boil-off gas flow rate at a corresponding load to the flow rate regulator to adjust the load of the reliquefaction system.

The present invention relates to a system and method for regasification of liquefied gas for vessels, which generates power by recovering cold heat discarded in regasification of liquefied gas to improve energy efficiency. The liquefied-gas regasification system for vessels includes: a vaporizer gasifying liquefied gas into a regasified gas through heat exchange with a first heating medium; a trim heater heating the regasified gas to a temperature required for a gas consumer through heat exchange with a second heating medium when the regasified gas is delivered from the vaporizer to the gas consumer; a first cycle in which the first heating medium is circulated; and a second cycle in which the second heating medium is circulated, wherein the first cycle includes a first heat exchanger gasifying the first heating medium to be supplied to the vaporizer through heat exchange with a heat source; and an expander-generator generating power through expansion of the first heating medium gasified by the first heat exchanger, and the second cycle includes a second heat exchanger heating the second heating medium to be supplied to the trim heater through heat exchange with a heat source.

Carbon dioxide re-liquefaction may be provided by a system capable of receiving a vented boiled off gas stream from a storage vessel at a first compressor; compressing the vented BOG stream at the first compressor into a first compressed BOG stream at a first pressure and a second compressed BOG stream at a second pressure, greater than the first pressure; cooling the first compressed BOG stream in a heat exchanger to produce a liquid stream by: cooling, via a refrigerant unit, the second compressed BOG stream to produce a first cold stream, of a temperature less than that of the first compressed BOG stream; exchanging heat from the first compressed BOG stream against tire first cold stream; and returning the liquid stream to the storage vessel.

The present invention provides a block-deploying vessel and a block-deploying method that can reduce the load on the movable hook device and lighten the labor involved in securing one end of the wire rope to the movable hook device. [Solution] A movable hook device 8 is installed on the upper end surface 5b of the side wall 5 erected on the outer side in the width direction of the bottom surface 4A, 4B that constitute the cargo hold 3 of the block loading vessel 1. A return portion 10 is installed at a predetermined position on the upper end surface 5b spaced apart from the movable hook device 8 in the length direction of the vessel, and a guide portion 11 is installed on the inner wall surface 5a of the side wall 5. In the operation of securing multiple blocks B to the cargo hold 3, a wire rope 7 extending in the length direction from one end 7a that is locked to the movable hook device 8 is wrapped around the return portion 10 and the guide portion 11, and the other end of the wire rope 7 wrapped around the outer circumference of the multiple blocks B is connected to a fixing portion 9 installed on the inner wall surface 5a.

The device for reintroducing steam into a volatile liquid comprises a tank (10) for the volatile liquid, a circulation pump (14) and connecting conduits (13, 113, 213) for pumping liquid from said tank (10) through a mixing zone or mixing device (12, 112, 212) for mixing the steam with the liquid, and a conduit (15, 115, 215) for conveying steam from the space above the level of the liquid to said mixing zone or mixing device (12, 112, 212), the mixing zone or mixing device (12, 112, 212) being arranged to ensure a pressure independent of the level of the liquid in the tank (10).

The present invention relates to a boil-off gas reliquefaction system for a ship. The boil-off gas reliquefaction system for a ship according to the present invention, whereby boil-off gas generated from a liquefied natural gas (LNG) storage tank for a ship is reliquefied, comprises: a first heat exchanger for recovering cold heat from a first boil-off gas generated in the storage tank; a multi-stage compressor for compressing the boil-off gas that has passed through the heat exchanger; a high-pressure gas line for supplying high-pressure gas that is supplied from the multi-stage compressor; a low-pressure gas line for supplying the boil-off gas, which is supplied from the multi-stage compressor, as a low-pressure gas by using a decompression valve; a second heat exchanger in which heat exchange occurs between the high-pressure gas line and the low-pressure gas line downstream of the decompression valve; and a third heat exchanger by which the boil-off gas that has passed through the second heat exchanger is cooled by means of heat medium oil of a cryogenic chiller.

The present invention relates to a liquefied gas storage tank and a ship including the same, and the liquefied gas storage tank of the present invention is a liquefied gas storage tank storing a cryogenic substance, characterized by comprising: a primary protection wall forming a storage space storing the cryogenic substance, made of a metal material; a primary insulation wall in which a primary plywood and a primary insulation material are sequentially disposed outside the primary protection wall; a secondary protection wall disposed outside the primary insulation wall; and a secondary insulation wall in which a secondary insulation material and a secondary plywood are sequentially stacked and disposed outside the secondary protection wall, the secondary protection wall being composed of a main protection wall provided at an upper portion of each of the secondary insulation walls constituting unit elements and an auxiliary protection wall connecting the adjacent main protection walls to each other, the secondary protection wall being made of a mixed material of a metal and a non-metal, the primary insulation wall having a thickness of 66% to 166% of the secondary insulation wall to reduce a low-temperature burden.

This invention relates to liquefied gas storage tanks and ships including them. The liquefied gas storage tank of this invention can be constructed from a primary protective wall, a primary insulation wall, a secondary protective wall, and a secondary insulation wall to store cryogenic substances. The primary insulation wall may include: a connecting insulation wall, which is disposed in the space between adjacent fixed insulation walls when unit elements consisting of the secondary insulation wall, the secondary protective wall, and a fixed insulation wall that is part of the primary insulation wall are stacked adjacently. The liquefied gas storage tank may include: a first slit formed between the fixed insulation wall and the connecting insulation wall when the connecting insulation wall is inserted between adjacent fixed insulation walls; a second slit formed along the length and width directions of the fixed insulation wall; and a first filling insulation element filling the first slit.

A ship has a hull, at least one double-shell tank mounted on the hull, having an inner tank storing liquefied gas and an outer tank covering the inner tank, at least one first discharge tower extending upward from the hull, at least one second discharge tower extending upward from the hull independently of the first discharge tower, a first discharge line connecting an upper portion in the inner tank and a tower interior of the first discharge tower, a second discharge line connecting the inner tank and an inter-tank region of the outer tank and a tower interior of the second discharge tower, and a pressure release device provided in the second discharge line, which is closed normally and opened when a pressure of the inter-tank region exceeds a prescribed inter-tank allowable value.

The utility model discloses a swing stopping bulkhead of a storage tank for a liquefied gas transport ship. The swing stopping bulkhead comprises two webs, a panel, a permeable pore plate and a plurality of horizontal reinforcing rib plates. The two web plates are fixed on the inner wall surface of the storage tank at intervals; the panel is connected between the inner diameter surfaces of the two web plates; the permeable pore plate is fixed on the inner diameter surface of the front part of the panel; the upper part and the lower part of the water-permeable pore plate are respectively provided with an upper inferior-arc-shaped water-permeable pore and a lower inferior-arc-shaped water-permeable pore, and a plurality of rows of circular water-permeable pores are horizontally formed between the upper inferior-arc-shaped water-permeable pore and the lower inferior-arc-shaped water-permeable pore; a plurality of horizontal reinforcing rib plates are fixed between the two web plates and are inserted into a plurality of flat through holes which are horizontally formed in the two sides of the panel in a one-to-one correspondence manner, the front side surfaces of the plurality of horizontal reinforcing rib plates are fixed on the rear surface of the permeable pore plate, and the plurality of horizontal reinforcing rib plates are positioned among the plurality of rows of circular permeable holes in a one-to-one correspondence manner. According to the utility model, the problem of fatigue failure easily caused by stress accumulation of the oscillation stopping panel can be reduced under the condition of reducing periodic impact of oscillation load.

The present invention relates to a method for manufacturing a non-adhesive insulation system for a liquefied gas storage tank, the method comprising the steps of: installing first separation members to fit same onto studs disposed on an outer wall of a liquefied gas storage tank; installing second separation members in spaces between the studs; installing a sheet layer on the first separation members and the second separation members such that the sheet layer surrounds the outer wall to form a leakage path in the gap between the outer wall and the sheet layer; forming an insulation unit on the sheet layer; injecting gas into the leakage path; and checking, to detect a defect, whether the pressure in the leakage path is maintained at a reference pressure or higher. The step of forming an insulation unit includes the steps of: forming some insulation layers among a plurality of insulation layers; fastening fixing units to the studs; and forming the remaining insulation layers on the some insulation layers.

The present invention relates to a storage and recovery system (100) for bulk material (102). The system (100) includes a bulk material holding space (104) having a bottom (108) with a discharge port (106). The bottom (108) includes an inclined support plate (112) for supporting the bulk material (102) and for assisting gravity-induced feeding of the bulk material (102) toward the discharge port (106). The support plate (112) is supported by a support structure (114) in a free-floating manner. One or more vibrators (116) are connected to the support plate (112) and configured to transmit vibrational energy to the support plate (112) to induce vibrational motion of the support plate (112). An intermediate layer (122) having vibration-insulating properties is disposed between the support structure (114) and the support plate (112). The support structure (114) is damped to the main structure (150) by at least one structural vibration damper (126). An abutment vibration damper (130) is disposed between the support plate (112) and the support structure (114) and configured to prevent downward translation of the support plate (112) toward the discharge port (106). A vessel (200), onshore storage (300), and hopper (400) including the system (100) are also provided. Use of the system (100) for handling bulk material (102) is also provided.

This liquefied gas tank comprises: an inner tank which houses liquefied gas; an outer tank which surrounds the inner tank; and a tubular pipe tower which includes a barrel portion having the lower end thereof bonded to the bottom wall inside the inner tank, a head portion located above the outer tank, and a connecting portion penetrating through the inner tank and the outer tank and connecting the barrel portion and the head portion in the vertical direction, the pipe tower extending from the bottom wall of the inner tank in the vertical direction. The connecting portion of the pipe tower includes: a tube body that has an inner tank–bonding portion to which the top of the inner tank is bonded and an outer tank–bonding portion to which the top of the outer tank is bonded, and that extends in the vertical direction; and a first deformation-permitting portion that connects the tube body and the upper end of the barrel portion, and that elastically deforms to permit displacement of the barrel portion with respect to the tube body.

A four-lobe cargo tank for transporting and / or storing liquefied gas, the tank having four main lobes, each having a cylinder sector outer shell and a main lobe axis, the four main lobe axes being axially parallel to and centered about a common main central axis, the four main lobes being joined by four web frames to four diagonally corresponding perforated bulkheads directed outward from the main central axis, the tank further comprising first and second end covers, each end cover further comprising four quarter spherical shell sections forming end portions of the cylinder sector outer shell, the quarter spherical shell sections of each of the first and second end covers being joined toward and closed by four diagonally arranged cylindrical 45-degree cut pipe sections, each of the first and second diagonally arranged cylindrical 45-degree cut pipe sections being arranged such that its axis transverses the main axis.

The present invention relates to a cargo tank of a ship for transporting various liquid cargoes, and a structure thereof. The cargo tank (100) of the present invention has four wall surfaces (101) and upper and lower wall surfaces (102), which are made of synthetic resin rather than of metal, and the synthetic resin cargo tank (100) is disposed to be spaced a predetermined distance from the inner surface inside a hull (300) of a ship. A plurality of load dispersing and transferring means (1) for dispersing and transferring the load generated when the hull (300) or the like is deformed are interposed between the cargo tank (100) and the hull (300). The load dispersing and transferring means (1) includes: an inner plate (2) in contact with the cargo tank (100); an outer plate (3) in contact with the hull (300); and a spherical slide ball (4) interposed between the plates so as to be slidable. According to the present invention, the load generated in the cargo tank (100) and the hull (300) is more smoothly dispersed and transferred such that durability of the ship and the cargo tank (100) can be improved.