WO2020192142A1 - 可移动浮式液货过驳海工平台及过驳方法 - Google Patents
可移动浮式液货过驳海工平台及过驳方法 Download PDFInfo
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- WO2020192142A1 WO2020192142A1 PCT/CN2019/118103 CN2019118103W WO2020192142A1 WO 2020192142 A1 WO2020192142 A1 WO 2020192142A1 CN 2019118103 W CN2019118103 W CN 2019118103W WO 2020192142 A1 WO2020192142 A1 WO 2020192142A1
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- Prior art keywords
- liquid cargo
- area
- tank
- platform
- tank container
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/002—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for goods other than bulk goods
- B63B25/004—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for goods other than bulk goods for containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
- B63B25/14—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed pressurised
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
- B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/10—Arrangement of ship-based loading or unloading equipment for cargo or passengers of cranes
- B63B27/12—Arrangement of ship-based loading or unloading equipment for cargo or passengers of cranes of gantry type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures
- B63B27/34—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures using pipe-lines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
Definitions
- the invention relates to an oil and gas transfer equipment, in particular to a liquid cargo or liquid cargo transit transportation system and method.
- Liquid cargo includes liquefied natural gas LNG, liquid ethylene LEG, petroleum gas LPG, etc.
- Tank container transportation is flexible and changeable. Such packaged goods can be directly sent to customers closer to customers by sea, river, and river transportation without resorting to special receiving stations.
- the container port 2.1 hazardous chemicals terminal.
- land and water transportation can be better connected, and water and land multimodal transportation can be carried out.
- patent CN107575738 proposes an offshore platform.
- the advantage of this platform is that the working environment is relatively stable and does not occupy land resources.
- the disadvantage is that as an offshore fixed building, it is subject to Geographical constraints, very large investment, strict approval, long approval period, and at the same time filling and lifting in the same area, there are great safety risks.
- the platform is only used as a storage liquid cargo, and the liquid cargo is transported to the transshipment ship through a pipeline, without the filling function.
- a movable floating liquid cargo transfer offshore platform is provided to solve the above-mentioned problems existing in the prior art.
- a transfer method based on the above-mentioned movable floating liquid cargo transfer offshore platform is provided.
- a movable floating liquid cargo transfer offshore platform including a movable floating platform:
- the movable floating platform includes a body, one end of the body is rotatably connected with a single-point mooring device, and the body is provided with a liquid cargo tank and a liquid cargo tank container filling and hoisting operation area located above the liquid cargo tank.
- Type container is installed in the operation area; along the two sides of the liquid cargo tank container filling and hoisting operation area, there are bridge cranes that can move longitudinally; the liquid cargo tank is connected with a filling system for loading the tank container Filled with liquid;
- the liquid cargo tank on the movable floating platform is connected with the liquid cargo bulk carrier through the pipeline system, and the liquid cargo is transferred to the bulk carrier;
- the tank container carrier When the tank container carrier approaches the movable floating platform, the tank container is transferred to the tank container carrier through the bridge crane.
- the liquid cargo tank container filling and hoisting operation area includes a first area and a second area spaced apart from the first area, in which a first bridge crane and a second bridge crane are respectively arranged ;
- the first bridge crane transfers the empty tank container to the movable floating platform and stacks it in a predetermined manner; the tank container carrier moves to the second area; The second bridge crane transfers the tank container with liquid cargo to the tank container carrier; at the same time, it uses the filling device to fill the tank container in the first area.
- the tank container is an elevating tank container, including a tank body, a frame body fixed around the tank body and forming a square support frame, and liquid inlets and liquid outlets respectively provided on the upper and lower sides of the tank body, and An automatic filling port arranged on one side of the tank body;
- the automatic filling port includes a liquid introduction tube welded to the inner wall of the tank and opened in the circumferential direction, and a spring sleeved on the introduction tube and one end abuts against the end of the introduction tube , One end passes through the spring and the guide hole at the end of the introduction tube to extend into the tank, and the other end forms a stopper of the raised part that matches the inner diameter of the open end of the introduction tube, which is welded along the outside of the automatic filling port and covers the automatic filling
- the guide tube for the installation port a push rod connected to the inner wall of the guide tube, one end is rotatably connected with the push rod, and the other end is connected with the stopper, and a filling joint assembly
- the end of the guide tube is provided with a pressure-bearing pipe, and a one-way valve is provided in the pressure-bearing pipe.
- the end of the ejector rod is provided with a stopper protrusion, and the inner wall of the guide tube is fixed with a stopper.
- the stopper protrusion and the stopper The stop block abuts and prevents the ejector rod from continuing to move in the opposite direction.
- the environmental monitoring system includes several sets of buoys arranged in a predetermined sea area and forming a grid layout, wind speed and direction sensors, seawater current meters and spectral remote sensors installed on the buoys, And a data processing center connected with the wind speed and direction sensor and the seawater flow meter signal; when the data processing center includes a regional wave short-term prediction module, the regional wave short-term prediction module is used to: receive the wind speed and direction sensor, the seawater current meter and the The wind direction, wind speed, wave height, wave direction, flow rate and flow direction data sent by the spectral remote sensor; preprocess and standardize the data; train the standardized data through the DBN model to obtain the trained data, and then use the BP algorithm to analyze the trained data Perform parameter tuning on the data to obtain tuning parameters; after processing at least three sets of data acquired at adjacent intervals, establish a wind vector field, a first wave vector field, and a flow vector field;
- the ocean wave field of view image data every predetermined time, preprocess the image data, extract the texture of the ocean wave image, determine the wave crest line and calculate the wavelength based on the distance between two consecutive crest lines, and give each found Number the crests, and establish the crest field map; starting from the next frame of image, search for crests that appeared in the previous frame of image and find new crests, number the new crests, add the new crests to the crest field map, according to the new crest and The direction of the nearest wave crest and the interval time between the images are used to establish the wave crest propagation direction vector diagram; the first wave vector field and the wave crest propagation direction are compared, and the neural network is used to train the data to obtain the reference data; according to the reference data, the offshore engineering platform Take control to keep it stable;
- a liquid cargo transfer method using the above-mentioned transfer offshore platform includes the following steps:
- Step 1 The liquid cargo bulk carrier approaches the movable floating liquid cargo transfer offshore platform;
- Step 2 Transfer the cargo from the bulk cargo ship to the cargo tank on the offshore platform via the unloading arm and the cargo tube bag in turn;
- Step 3 Fill the cargo in the cargo tank into the tank container through the filling system on the mobile floating cargo transfer offshore platform;
- Step 4 Leaning on the offshore platform next to the tanker tanker, the bridge crane hoists the empty containers on the ship to the tank container stacking area; after the lifting is completed, the tanker tanker moves to another In the operating area, the full container is hoisted onto the ship by the bridge crane.
- the step four is further: the movable floating liquid cargo transfer offshore platform is provided with a first area and a second area, and the first bridge crane and the second bridge crane are respectively provided therein,
- the liquid cargo tank container ship with empty containers first docks in the first area, and transfers the empty containers to the first area through the first bridge crane; after the lifting is completed, the liquid cargo tank container is transferred to the second area and passes
- the second bridge crane lifts the full containers on the offshore platform to the ship; at the same time, another tanker container ship is docked in the first area, and the empty containers are hoisted and stacked in the first area by the first bridge crane .
- a liquid cargo transfer method using the above transfer offshore platform includes the following steps:
- Step 1 The tank container carrier with full tanks of liquid cargo departs from various marginal gas fields, moves to the movable floating liquid cargo transfer offshore platform, stops at the first area, and transfers the full tank via the first bridge crane To the offshore platform; the transport ship is transferred to the second area, and the second bridge crane transfers the empty container to the transport ship;
- Step 2 Reverse filling through the filling system to transfer the liquid cargo in the tank container to the liquid cargo tank of the offshore platform;
- Step 3 Lean and fix the liquid cargo bulk carrier on the offshore platform side;
- Step 4 Transfer the liquid cargo in the cargo tank from the offshore platform to the liquid cargo bulk carrier through the material bag and the unloading arm, and transfer the liquid cargo bulk carrier to the predetermined address.
- the step one further includes:
- the movable floating liquid cargo transfer offshore platform is provided with a first area and a second area, in which a first bridge crane and a second bridge crane are respectively arranged, and the tank container ship with full tanks is first Park in the first area, and transfer the empty containers to the first area by the first bridge crane; after the lifting is completed, the liquid cargo tank container is transferred to the second area, and the full containers on the offshore platform are hoisted by the second bridge crane To the ship; at the same time, another liquid cargo tank container ship is docked in the first area, and the empty containers are hoisted and stacked in the first area by the first bridge crane.
- the offshore engineering platform is equipped with cargo tanks, filling systems and tank containers, with buffering capacity and transfer functions. At the same time, the platform is equipped with hoisting and filling areas. The separated design makes the filling and hoisting more efficient and safe. better.
- Figure 1 is a schematic plan view of the mobile floating LNG offshore sub-loading and collection transfer platform of the present invention.
- Figures 2a and 2b are schematic diagrams of the movable floating transfer platform of the present invention.
- Figure 3 is a schematic diagram of the implementation process of the present invention.
- Fig. 4 is a partial structural diagram of the automatic filling port of the present invention.
- movable floating platform 1 liquid cargo bulk carrier 2, liquid cargo tank container carrier 3, superstructure and smoke exhaust ventilation area 4, container bridge crane 5, liquid cargo tank container filling and hoisting operations Area A 6.
- Liquid cargo tank container filling and hoisting operations Area B Liquid cargo receiving and unloading and tank container filling centralized control area 8, BOG reliquefaction module 9, upper LNG cargo pipe bag 10, liquid cargo receiving and unloading Material arm 11, crane track 12, liquid cargo tank dome that is liquid phase gas phase entrance and exit 13, single point mooring system 14, liquid cargo tank 15, liquid cargo tank container stacking and filling platform 16, liquid cargo tank container 17, Tank side wall 101, push rod 102, ejector rod 103, lead tube 104, stopper 105, spring 106, circumferential opening 107, first seal 108, stop block 109, connecting ring 110, one-way Valve 111, pressure pipe 112, flange 113, screw pipe 114, positioning sleeve 115.
- a movable floating liquid cargo transfer offshore platform which includes a movable floating platform 1.
- the movable floating platform 1 can mainly be modified by existing ships or platforms, or newly built according to actual needs. .
- the displacement of the vessel is determined according to the actual needs of the project.
- the movable floating platform 1 mainly includes at least one body that can float on the water surface or in a semi-submerged state. In order to fix the main body in a predetermined area without a fixed building (pier or offshore building) for fixing, this solution uses a single-point mooring device for fixing.
- the single point mooring system 14 can use catenary buoy mooring devices and single anchor leg mooring devices, such as jacket tower rigid arm mooring devices, fixed tower single point mooring devices, and detachable turret buoy mooring devices. Mooring device and permanent turret mooring device. Piling can also be used. Through the mooring device, the offshore platform can rotate 360° with the ocean current, thereby reducing the impact of the ocean current on it and improving the stability.
- a storage system is provided on the offshore platform body, such as a liquid cargo tank or a liquid cargo tank 15 in the cabin, and a liquid cargo tank container filling and hoisting operation area (liquid tank container stacking and filling platform 16) above the deck. ), used for stacking liquid cargo tank containers17.
- the liquid cargo tank 15 is connected with a filling system for filling the tank container with liquid.
- bridge cranes that can move longitudinally. It is used to realize the storage, filling and hoisting functions of the offshore platform body. That is to say, the above-mentioned functions can be realized on the offshore engineering platform body without extending to the dock, land or other transshipment ships through pipelines.
- the offshore platform can be operated at a distance from the coast, and the safety is better.
- the transshipment vessel no major structural transformation is required to transport tank containers. OK. Therefore, the offshore engineering platform of the present application has stronger functions, lower requirements on other ships, and better adaptability to the environment.
- the floating platform is also provided with a superstructure and smoke exhaust ventilation area 4, a centralized control area 8 for liquid cargo unloading and tank container filling, and a BOG reliquefaction module 9.
- the working process is generally as follows: When the liquid cargo bulk carrier 2 is close to the movable floating platform 1, the liquid cargo tank 15 on the movable floating platform 1 passes through the pipeline system (including the upper LNG cargo tube bladder 10 and the liquid cargo receiving and unloading Arm 11) is connected with the liquid cargo bulk carrier 2 to transfer the liquid cargo to the bulk carrier; when the tank container carrier approaches the movable floating platform 1, the tank container is transferred to the tank container carrier through the bridge crane .
- the bridge crane moves through the crane track 12 arranged along the axis of the platform, thereby operating containers in different positions.
- the liquid cargo tank container filling and hoisting operation area A 6 includes a first area and a second area spaced apart from the first area.
- the first bridge crane and the second bridge crane are respectively arranged inside. That is, at least two work areas are set up to improve work efficiency and reduce waste of time and resources through alternate work. At the same time, the filling work and the lifting work are separated, and it is safer.
- this program its working process is introduced as follows:
- the first bridge crane transfers the empty tank container to the movable floating platform 1 and stacks it in a predetermined way; the tank container ship moves to the second area ; The second bridge crane transfers the tank container with liquid cargo to the tank container carrier; at the same time, it uses the filling device to fill the tank container in the first area.
- multiple working areas may be set, and the working areas in the above embodiments are preferred embodiments. When multiple working areas are set up, the above-mentioned alternate working scheme can maximize the use of system resources.
- the tank container is an elevating tank container, including a tank body, a frame body fixed around the tank body and forming a square support frame, the liquid inlet and the liquid outlet on the upper and lower sides of the tank body, and the The automatic filling port on one side of the tank body;
- the automatic filling port includes an introduction tube 104 welded to the inner wall of the tank and a circumferential opening 107, sleeved in the introduction tube 104 and one end abuts against the end of the introduction tube 104
- One end of the spring 106 passes through the guide hole at the end of the spring 106 and the introduction tube 104 and extends into the tank body, and the other end forms a stopper 105 that fits the inner diameter of the open end of the introduction tube 104, along the automatic filling
- a guide tube welded on the outside of the port and covering the automatic filling port, a push rod 102 that is rotatably connected to the inner wall of the guide tube, one end is rotatably connected to the push rod 102,
- the ejector rod 103 is set on the guide tube.
- the screw connection pipe 114 and the guide pipe are fitted and connected and reinforced by the flange 113 connection.
- a positioning part is provided on the outside of the stopper 105, and one end of the push rod 103 is located in the positioning part.
- a first seal 108 is provided on the outer side of the stopper.
- the filling end When filling, the filling end is adjusted to the side wall 101 of the tube body, the positioning sleeve 115 is opened, the threaded blocking member is turned down, the filling end enters the guide tube in a rotating manner, and the end of the filling end abuts and pushes
- the rod 102 drives the push rod 103 to move, pushes the stopper 105, the pipeline is connected, and the liquid injection operation is performed. After the operation is completed, the filling tip is turned out and the relevant mechanism is reversely reset.
- the spring 106 pushes the stopper 105 to seal, and at the same time, screw on the threaded blocker and cover the positioning sleeve 115. .
- a pressure-bearing pipe 112 is provided at the end of the guide pipe, and a one-way valve 111 is provided in the pressure-bearing pipe 112.
- the end of the ejector rod 103 is provided with a stopper protrusion, and the inner wall of the guide tube is fixed with a stopper 109.
- the stopper protrusion and the stopper 109 abut Then, the ejector rod 103 is blocked from continuing to move in the reverse direction.
- the position is limited by abutment to avoid rotation failure of the rotating rod and cause leakage.
- the environmental monitoring system includes several sets of buoys arranged in a predetermined sea area and forming a grid layout, wind speed and direction sensors, seawater current meters and spectral remote sensors installed on the buoys, And a data processing center connected with the wind speed and direction sensor and the seawater flow meter signal; when the data processing center includes a regional wave short-term prediction module, the regional wave short-term prediction module is used to: receive the wind speed and direction sensor, the seawater current meter and the The wind direction, wind speed, wave height, wave direction, flow rate and flow direction data sent by the spectral remote sensor; preprocess and standardize the data; train the standardized data through the DBN model to obtain the trained data, and then use the BP algorithm to analyze the trained data Perform parameter tuning on the data to obtain tuning parameters; after processing at least three sets of data acquired at adjacent intervals, establish a wind vector field, a first wave vector field, and a flow vector field;
- the ocean wave field of view image data every predetermined time, preprocess the image data, extract the texture of the ocean wave image, determine the wave crest line and calculate the wavelength based on the distance between two consecutive crest lines, and give each found Number the crests, and establish the crest field map; starting from the next frame of image, search for crests that appeared in the previous frame of image and find new crests, number the new crests, add the new crests to the crest field map, according to the new crest and The direction of the nearest wave crest and the interval time between the images are used to establish the wave crest propagation direction vector diagram; the first wave vector field and the wave crest propagation direction are compared, and the neural network is used to train the data to obtain the reference data; according to the reference data, the offshore engineering platform Control to keep it stable; when the wave crest in the current frame of image overlaps the wave crest of the next frame, and the overlap distance is less than the critical value, it is judged as the same wave crest and the numbers are combined.
- a liquid cargo transfer method using the above-mentioned transfer offshore platform includes the following steps:
- Step 1 The liquid cargo bulk carrier approaches the movable floating liquid cargo transfer offshore platform;
- Step 2 Transfer the cargo from the bulk cargo ship to the cargo tank 15 on the offshore platform via the unloading arm and the cargo tube bag in turn;
- Step 3 Fill the cargo in the cargo tank 15 into the tank container through the filling system on the mobile floating cargo transfer offshore platform;
- Step 4 The liquid cargo tank container ship 3 is leaning on the offshore platform, and the empty container on the ship is hoisted to the tank container stacking area by the bridge crane; after the lifting is completed, the liquid cargo tank container ship 3 moves to In another operation area, the full container is hoisted onto the ship by a bridge crane.
- the step four is further: the movable floating liquid cargo transfer offshore platform is provided with a first area and a second area, and the first bridge crane and the second bridge crane are respectively provided therein,
- the liquid cargo tank container carrier 3 with empty containers first docks in the first area, and the empty containers are transferred to the first area through the first bridge crane; after the lifting is completed, the liquid cargo tank container 17 is transferred to the second area ,
- the full container on the offshore platform is hoisted to the ship by the second bridge crane; at the same time, another tanker container ship 3 is docked in the first area, and the empty container is hoisted and stacked by the first bridge crane The first area.
- Example 1 Transfer and sub-packaging of liquefied natural gas.
- Step 1 Side mooring stage of LNG bulk carrier
- the LNG bulk carrier is moored on the side of the offshore platform 1 fixed by a single-point mooring method with the assistance of tugboats, pushers, etc.
- the LNG cargo is transferred from the LNG bulk carrier to the LNG cargo tank 15 on the platform via the LNG unloading arm 11 and the LNG cargo tube bladder 10 in turn.
- Step 3 Large-scale filling stage of tank containers (take area B as an example, and vice versa)
- the LNG tank container filling module on the transfer offshore platform is used to sub-package LNG in batches into the LNG tank containers stacked in Zone B.
- Step 4 Replacement lifting stage of full and empty containers.
- the LNG tank container ship sails into the area where the platform is located, and is moored on the other side of the platform.
- the container bridge crane 5 hoists the empty container carried on the ship to the area where it was originally idle. Of tank containers are stacked in the filling area. After the empty container is completely lifted, it will be re-moored to the corresponding position in Zone B, and the full container in the third stage will be hoisted to the LNG tank container ship through the container bridge crane 5.
- the platform can transfer cargo from bulk carriers to packaging cargo carriers without resorting to LNG special receiving devices and container port terminals.
- a liquid cargo transfer method using the above transfer offshore platform includes the following steps:
- Step 1 The tank container carrier with full tanks of liquid cargo departs from various marginal gas fields, moves to the movable floating liquid cargo transfer offshore platform, stops at the first area, and transfers the full tank via the first bridge crane To the offshore platform; the transport ship is transferred to the second area, and the second bridge crane transfers the empty container to the transport ship;
- Step 2 Reverse filling through the filling system to transfer the liquid cargo in the tank container to the liquid cargo tank 15 of the offshore platform;
- Step 3 The liquid cargo bulk carrier 2 is leaned against the offshore platform and fixed;
- Step 4 Transfer the liquid cargo in the liquid cargo tank 15 from the offshore platform to the liquid cargo bulk carrier 2 through the material bag and the unloading arm, and transfer the liquid cargo bulk carrier 2 to the predetermined address.
- the step one further includes:
- the movable floating liquid cargo transfer offshore platform is provided with a first area and a second area, in which a first bridge crane and a second bridge crane are respectively arranged, and a tank container ship with full tanks 3 First stop at the first area, and transfer the empty containers to the first area for stacking by the first bridge crane; after the lifting is completed, the liquid cargo tank container 17 is transferred to the second area, and the full on the offshore platform is transferred by the second bridge crane.
- the containers are hoisted onto the ship; at the same time, another tanker container ship 3 is docked in the first area, and the empty containers are hoisted and stacked in the first area by the first bridge crane.
- Embodiment 2 Liquefied natural gas collection and barge: With the help of this platform, the barge transmission of liquid cargo from the LNG packaging transport ship-LNG container ship 3 to the LNG bulk transport ship 2 is realized.
- Step 1 Lifting replacement of full and empty boxes.
- the container bridge cranes 5 in area A and area B of the platform hoist the full containers collected by the LNG tank container ship from multiple marginal gas fields to the operation area A of the platform, and then the empty containers stacked in the operation area B Lift to LNG tank container ship.
- Step 2 LNG collection and transfer stage-the cargo in the full tank is transported in reverse.
- the LNG tank container filling module on the transfer offshore platform is used to reversely transport the liquid cargo in the full tank in the A zone to the LNG cargo tank 15 of the platform.
- Step 3 The side mooring stage of the LNG bulk carrier.
- the LNG bulk carrier is moored on the other side of the offshore platform fixed by single-point mooring with the assistance of tugboats, pushers, etc.
- Step 4 LNG collection and transfer stage-the cargo in the full tank is transported in reverse.
- a skid-mounted natural gas liquefaction device can be built for scattered gas sources in marginal gas fields, which can be transported to the floating LNG transfer offshore platform by LNG tank container ships, and then pass through the platform Perform reverse convergence and finally transfer to LNG bulk carrier, and then carry out long-distance ocean transportation to the demand side.
- the platform is a mobile floating offshore platform integrating transfer, buffering, sub-packaging, collection and lifting. It has at least the following characteristics: Tank container stacking and batch filling area on the platform It is divided into two areas, A and B. In the middle of the A and B areas, the tank container filling and the LNG cargo receiving and unloading operation area are safely isolated, which can realize the LNG tank container filling in one area while the other area The loading and unloading of LNG tank containers can still be carried out, which effectively improves the operating efficiency of the platform and the turnover efficiency of LNG tank containers.
- the platform is a movable floating platform 1, which is fixed by a single-point mooring method, which can be applied to the working environment of different water depths.
- the single-point mooring method has a weather vane effect, which can avoid environmental factors such as wind, waves and currents to the greatest extent.
- the platform as a whole can realize the rapid detachment of the single-point mooring pile (anchor).
- anchor When the energy demand in winter is tight, it can be directly towed by the tugboat to moor and fix in the adjacent sea area of the area with tight energy demand.
- Coastal areas conduct faster LNG transfer, sub-assembly, delivery and supply. It can effectively improve the transportation efficiency of container ships to the destination port and reduce transportation costs.
- the platform has a certain capacity of LNG buffering capacity.
- the innovative application of LNT’s A-BOX independent cargo tank 15 technology to the platform’s buffer cargo tank 15 cargo maintenance system can greatly increase the buffer capacity under the condition that the main body of the platform is limited in size. Different transfer media match the 15 cargo maintenance system with better compatibility.
- the innovative design of the platform uses the container bridge crane 5 for the offshore work platform, as the main working method of LNG tank container lifting. A set of container cranes are set up on the A and B areas of the platform deck, and the track length arrangement of the two cranes is shared, which can completely cover the filling and stacking area of the two LNG tank containers on the platform A and B. Maximize the lifting efficiency of empty containers between the LNG tank container carrier and the platform.
- the platform innovatively uses a suspended lift tank container filling workbench to realize large-scale filling operations for densely stacked LNG tank containers in a narrow space on the offshore platform, and at the same time the tank container filling
- the platform has a reverse cycle unloading function, which can transfer the LNG in the tank container to the cargo tank 15 of the platform, and then the cargo pump in the cargo tank 15 will transport it to the nearby LNG carrier in reverse.
- the platform function can enable large LNG bulk carriers to complete LNG liquid sub-packaging and transshipment without resorting to LNG special receiving devices, and use the packaging cargo carrier-LNG tank container to directly deliver the liquid cargo to the user.
- the platform can simultaneously collect the associated gas from marginal gas fields or large oil fields where the annual gas production is not very large, and then transfer large amounts of LNG cargo to LNG bulk carriers for long-distance maritime transport, maximizing Combining various transportation methods, reducing transportation costs, and solving the problems of scattered gas source utilization and logistics economy.
- the platform can also be used as a bulk cargo transfer, so that large LNG bulk carriers can be transferred to the LNG cargo tank 15 of the platform via the LNG unloading arm and tube bag of the platform. After the large LNG ship leaves, the small inland LNG bulk cargo The ship berths at the platform, and transfers the liquid cargo to the small LNG bulk carrier via the tube bag and the unloading arm. This method can solve the problem of two-way LNG transfer from the coast to the inland.
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Abstract
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- 一种可移动浮式液货过驳海工平台,其特征在于,包括可移动浮式平台:所述可移动浮式平台包括本体,本体的一端与单点系泊装置转动连接,所述本体设置有液货舱和位于液货舱上方的液货罐式集装箱充装及吊装作业区,液货罐式集装箱安装于该作业区;沿液货罐式集装箱充装及吊装作业区的两侧设置有可沿其纵向移动的桥机;所述液货舱连接有充装系统,用于向罐式集装箱内充装液体;当液货散装运输船靠近可移动浮式平台时,可移动浮式平台上的液货舱通过管路系统与液货散装运输船连通,将液货转移至散装运输船;当罐式集装箱运输船靠近可移动浮式平台时,通过桥机将罐式集装箱转移至罐式集装箱运输船。
- 根据权利要求1所述的可移动浮式液货过驳海工平台,其特征在于,所述液货罐式集装箱充装及吊装作业区包括第一区域以及与第一区域间隔设置的第二区域,其内分别设置有第一桥机和第二桥机;当空的罐式集装箱运输船移动至第一区域时,第一桥机将空的罐式集装箱转移至可移动浮式平台,并按照预定的方式堆集;罐式集装箱运输船移动至第二区域;第二桥机将装有液货的罐式集装箱转移至罐式集装箱运输船;与此同时,采用充装装置向第一区域中的罐式集装箱进行充装。
- 根据权利要求1所述的可移动浮式液货过驳海工平台,其特征在于,所述罐式集装箱为升降式罐式集装箱,包括罐体,固定在罐体周围且组成方形支撑框的架体,分别设置在所述罐体上下两侧的进液口和出液口,以及设置在罐体一侧的自动充装口;所述自动充装口包括焊接于罐体内壁且周向开口的引液管,内套于引液管且一端与引液管末端抵接的弹簧,一端穿过弹簧和引液管末端的引导孔 延伸至罐体内、另一端形成与引液管开放端内径适配的凸起部的挡止件,沿自动充装口外侧焊接并覆盖自动充装口的导向管,转动连接在导向管内壁的推动杆,一端与推动杆转动连接另一端与挡止件连接的顶开杆,以及设置在导向管一端的充装接头组件;所述充装接头组件包括固定在导向管端部的密封连接环和螺接管,固定在密封连接环和螺接管之间的密封圈,以及固定在螺接管端部的定位套;所述螺接管与导向管之间嵌合连接并通过法兰连接加固。
- 根据权利要求3所述的可移动浮式液货过驳海工平台,其特征在于,所述导向管的端部设置有承压管,所述承压管内设置有单向阀。
- 根据权利要求3所述的可移动浮式液货过驳海工平台,其特征在于,所述顶开杆的末端设置有挡止凸起,所述导向管内壁固定有挡止块,当顶开杆反向运动至预期位置时,挡止凸起与挡止块抵接,阻挡顶开杆继续反向运动。
- 根据权利要求1所述的可移动浮式液货过驳海工平台,其特征在于,还包括环境监测系统,所述环境监测系统包括设置在预定海域并形成网格式布局的若干组浮标,安装在浮标上的风速风向传感器、海水流速仪和光谱遥感仪,以及与风速风向传感器和海水流速仪信号连接的数据处理中心;当数据处理中心包括区域海浪短期预测模块,所述区域海浪短期预测模块用于:每隔预定时间接收风速风向传感器、海水流速仪和光谱遥感仪发送的风向、风速、波高、波向、流速和流向数据;对数据进行预处理和标准化;通过DBN模型训练已标准化的数据,获得训练后的数据,然后通过BP算法对训练后的数据进行参数调优,得到调优参数;经至少三组相邻间隔时间获取的数据处理后,建立风矢量场、第一波矢量场和流矢量场;每隔预定时间获取海浪视场图像数据,对图像数据进行预处理,提取海浪图像的纹理,确定海浪的波峰线并根据两个连续的波峰线之间的距离计算波长,给每个查找到的波峰编号,并建立波峰场图;下一帧图像开始,查找上一帧图像中出现的波峰并查找新的波峰,对新的波峰进行编号,将新波峰添加到波峰场图,根据新波峰与相邻最近的波峰的方向和图像的间隔时间,建立波峰传播方向矢量图;比较第一波矢量场和波峰传播方向,采用神经网络对数据进行训练,得到参考数据;根据参考数据对海工平台进行控制,从而使其保持稳定;当前一帧图像中的波峰与后一帧的波峰出现重叠,且重叠距离小于临界值时,判断为同一波峰,将编号合并。
- 一种采用权利要求1至6任一项所述过驳海工平台的液货过驳方法,其特征在于,包括如下步骤:步骤一、液货散装船靠近可移动浮式液货过驳海工平台;步骤二、从液货散装船上将货物依次经由接卸料臂和货物管囊过驳传输至海工平台上的液货舱;步骤三、通过可移动浮式液货过驳海工平台上的充装系统,将液货舱内的货物充装至罐式集装箱;步骤四、液货罐式集装箱运输船旁靠于海工平台,由桥机将船上的空箱吊装至罐式集装箱堆放充装区;吊运完成后,液货罐式集装箱运输船移动至另一作业区,通过桥机将满箱吊装至船上。
- 根据权利要求7所述的液货过驳方法,其特征在于,所述步骤四进一步为:可移动浮式液货过驳海工平台设置有第一区域和第二区域,其内分别设置有第一桥机和第二桥机,载有空箱的液货罐式集装箱运输船首先停靠于第一区域,通过第一桥机将空箱转移至第一区域堆放;吊装完成后,液货罐式集装箱转移至第二区域,通过第二桥机将海工平台上的满箱吊装至船上;与此同时,另一液货罐式集装箱运输船停靠于第一区域,通过第一桥机将空箱吊装并堆放在第一区域。
- 一种采用权利要求1至6任一项所述过驳海工平台的液货过驳方法,其特征在于,包括如下步骤,步骤一、载有满箱液货的罐式集装箱运输船从各个边际气田出发,移动至可移动浮式液货过驳海工平台,停靠在第一区域,通过第一桥机将满箱转移至海工平台;运输船转移至第二区域,第二桥机将空箱转移至运输船上;步骤二、通过充装系统反向充装,将罐式集装箱内的液货转移至海工平台的液货舱;步骤三、液货散装运输船旁靠在海工平台一侧并固定;步骤四、通过物管囊和接卸料臂,将液货舱内的液货从海工平台,转移至液货散装运输船,通过液货散装运输船转移至预定地址。
- 根据权利要求9所述的液货过驳方法,其特征在于,所述步骤一进一步包括:所述可移动浮式液货过驳海工平台设置有第一区域和第二区域,其内分别设置第一桥机和第二桥机,载有满箱的液货罐式集装箱运输船首先停靠于第一区域,通过第一桥机将空箱转移至第一区域堆放;吊装完成后,液货罐式集装箱转移至第二区域,通过第二桥机将海工平台上的满箱吊装至船上;与此同时,另一液货罐式集装箱运输船停靠于第一区域,通过第一桥机将空箱吊装并堆放在第一区域。
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