45 results about "Dry dock" patented technology

The present application relates to a semi-prefabricated construction method for large deep-water caissons in a shallow dock. Concrete for a caisson base slab is poured in a dry dock, prefabricated slabs and steel trusses are mounted around the base slab to form an open box structure, then a box is towed to a bridge site, the construction of the caissons is completed by means of cast-in-place concrete pouring on the water, and finally the caisson is filled with water and sinks into place. The present application can greatly reduce the requirements for the excavation depth of the dry dock, and decrease the dredging workload of an undocking and floating channel, thereby reducing construction costs, and also facilitating shortening the construction period of the caissons.

This invention relates to the technical field of construction engineering, and in particular to a prefabrication and installation method for a dry dock entrance, comprising the following steps: Step A, construction of an underground anti-seepage wall in the dry dock entrance area, layered and segmented construction of the dry dock entrance concrete, one-time pouring of concrete for the lower part of the dock sill and one-time pouring of concrete for the main body of the dock pier; Step B, design and prefabrication of dock sill stones and prefabricated dock pier stones; Step C, installation of the prefabricated dock sill stones and prefabricated dock pier stones. This invention features prefabricated dock sill stones and dock pier stones used in the construction of the dry dock entrance. The layered and segmented pouring method during construction effectively controls temperature cracks in the main concrete of the dry dock entrance; the stainless steel panels inlaid on the contact surfaces of the prefabricated dock sill stones and prefabricated dock pier stones with the dock gate greatly improve the flatness of the sealing surface; furthermore, the prefabricated structure effectively simplifies the construction process and reduces construction costs.

This invention discloses a method for ship cutting and water-based docking, comprising the following steps: marking a cutting baseline on the hull to be modified in a dry dock; cutting the hull according to the cutting baseline and inspecting the cutting quality of the hull; pre-cutting the intermediate half of the hull and inspecting the pre-cut parts; simulating the joining of the cut hull and the intermediate half; marking joining reference marks on the cut hull and the intermediate half based on the joining reference marks; adjusting the buoyancy of the bow half and the intermediate half after cutting based on the joining reference marks; controlling the intermediate half's support on the corresponding support in the dry dock after adjusting the buoyancy of the bow half and the intermediate half; and controlling the bow half's support on the corresponding support in the dry dock after the intermediate half has been controlled. This invention improves the control level of ship cutting and joining, shortens the joining construction time, and improves efficiency.

This invention relates to a graded trigger-type crash barrier and crash prevention method for dry dock boarding ramps, belonging to the technical field of dry dock boarding ramps. The crash barrier includes uprights and crossbeams. A crash prevention structure is installed on the crossbeams, comprising: a mounting plate with a locking part on the back for locking onto the crossbeam; an outer airbag connected to the front of the mounting plate, which is inflated under normal conditions to form a first-level crash buffer; an inner airbag connected to the front of the mounting plate and located inside the outer airbag, which is deflated under normal conditions; and a high-pressure gas cylinder installed at the locking part, which is connected to the inner airbag via a pipeline. A pressure switch is installed on the pipeline, and the pressure detection end of the pressure switch is located inside the outer airbag. When the outer airbag is impacted and the internal pressure rises to the trigger threshold of the pressure switch, the pressure switch opens the pipeline, and the high-pressure gas cylinder inflates the inner airbag, causing the inner airbag to expand and form a second-level crash buffer.

The invention relates to the technical field of dry dock water stopping, in particular to a two-way water stopping structure, a dock entrance water stopping system and a using method. The second vertical grooves are formed in the two ends of the dock gate, and the second vertical grooves and the first vertical grooves are oppositely arranged; and the water stop gate is located between the first vertical groove and the second vertical groove, and the water stop gate is used for abutting against the side wall of the first vertical groove and the side wall of the second vertical groove. The dock gate and the docking block can be subjected to water stopping when water is dry in the dock and water is stored in the dock, the two-way water stopping effect is achieved, compared with a traditional mode that four water stopping steel gates need to be arranged, only two water stopping gates need to be arranged, the number of water stopping parts is reduced, the operation process is simplified, and the construction operation efficiency is improved.

The invention provides a reciprocating type folding and unfolding system and method applied to opening and closing of a dry dock gate. The system comprises a propelling device which comprises a telescopic arm and a first driving mechanism, a dock gate connecting hook is arranged at the front end of the telescopic arm, and the first driving mechanism is used for driving the telescopic arm to stretch out and draw back so that the dock gate connecting hook can get close to or away from a dry dock gate; the rotary system comprises a second driving mechanism and a fixed support, the telescopic arm is rotationally connected to the fixed support, the second driving mechanism is connected with the telescopic arm and used for driving the telescopic arm to drive the dock gate connecting hook to rotate, the dock gate connecting hook is connected with the dry dock gate, and then longitudinal movement of the dry dock gate is achieved through the propelling device; the transverse moving device is installed on the in-dock wharf, fixedly connected with the dry dock gate and used for achieving transverse movement of the dry dock gate. By means of the cooperation of the propelling device, the rotating system and the transverse moving device, high-stability and high-efficiency opening and closing and retracting operation is achieved, and the safety and stability of the opening and closing and retracting operation of the dry dock gate can be improved.

The application discloses a digital half-ship closing control system, which comprises a dry dock support system, a data acquisition module and a central control system, the data acquisition module is in electrical connection with the central control system through a communication network; the central control system comprises a data input module, a data processing and analysis module and an output module; the data input module is used for receiving real-time data collected by the data acquisition module; the data processing and analysis module is used for calculating deformation error and stress distribution of a half-ship and generating adjustment instructions based on the calculation results; and the output module is used for outputting the adjustment instructions to the dry dock support system and transmitting adjusted data to the data input module. The digital half-ship closing control system and the closing method realize real-time monitoring, dynamic feedback and automatic adjustment of a closing process.

The present application relates to the technical field of immersed tube tunnel, and particularly relates to a large-scale immersed tube in-dock turning method, which comprises the following steps: S1: water is poured into a dry dock to make a large-scale immersed tube float up, and a large-scale immersed tube is subjected to a cable operation; S2: the large-scale immersed tube is subjected to a first transverse movement to move from a shallow dock area to a deep dock area turning position; S3: the large-scale immersed tube is subjected to turning and movement at multiple different point positions in the deep dock area, and is subjected to cable adding, cable changing and cable releasing to complete a turning operation of the large-scale immersed tube; and S4: the large-scale immersed tube is subjected to transverse movement to a dock-out axis after turning. Through the turning operation at multiple different point positions in the deep dock area, the turning of the large-scale immersed tube in the deep dock area is completed without the need of expanding the deep dock area, and the problem that a large-scale immersed tube is extremely difficult to turn in a dock due to the fact that a conventional dry dock does not reserve enough space for the large-scale immersed tube to turn in the dock during construction design is solved.

The application discloses a ship undocking control device and method based on digital twinning, equipment and medium, and belongs to the field of ship launching, towing out or entering a dry dock. The device comprises a digital twinning image construction module, which is used for acquiring a dock model and constructing a digital twinning image of the dock according to the dock model; a water level data acquisition module, which is used for acquiring water level data in the dock through a sensor during the process of water filling or water draining of the dock; and a dynamic digital twinning effect drawing generation module, which is used for combining the water level data into the digital twinning image to obtain a dynamic digital twinning effect drawing in the process of water filling or water draining and displaying the dynamic digital twinning effect drawing. According to the technical scheme, the dynamic digital twinning effect drawing can be made according to the real-time water level in the dock, the process of water filling or water draining of the dock can be observed in real time through the displayed dynamic digital twinning effect drawing, the process of water filling or water draining of the dock is more directly displayed, and the control efficiency of the ship entering or leaving the dock is improved.

The invention provides a bonding method and tool for a sealing ring of a sealing device and application, and relates to the field of structural sealing, and the bonding method comprises the following steps that S1, a bonding surface is pretreated; s2, assembling a tool; s3, a heating sealing ring assembly is installed; s4, a sealing ring is fixed; s5, a sealing ring is pressed in and fixed; and S6, carrying out heat vulcanization bonding. Two groups of clamping plates and two groups of heating plates are fixed on the bottom plate, and heating holes and detection holes are formed in the heating plates. The bonding tool and method for the sealing device sealing ring are applied to bonding of a ship stern shaft sealing device, the stern shaft sealing ring can be accurately positioned and installed under the condition that no ship accessories are disassembled, operation can be conducted under the condition that a ship berths and does not enter a dock, huge cost can be saved, and the bonding tool and method are economical and practical. According to the method, the bonding efficiency and reliability are greatly improved, and the overall maintainability of the stern shaft sealing device is improved.

The application provides a cofferdam type construction structure of a conical prefabricated caisson foundation and a construction method thereof. The conical prefabricated caisson foundation comprises a conical bottom caisson constructed in a dry dock, and a conical side wall coaxially arranged in a central region and constructed in a wet dock. A water stop connecting member is arranged on the top of the conical bottom caisson and surrounds the periphery of the conical side wall. A cofferdam main body is arranged on the top of the water stop connecting member, and the cofferdam main body comprises a bottom initial section which is installed in the dry dock. By using the construction scheme of sitting on the bottom and increasing the height in the wet dock, the safety risks of overturning, failure of mooring system and damage of facilities during the construction of the traditional floating pouring method in the typhoon period are fundamentally solved, and the stability and safety of the caisson height increasing process are significantly improved. By arranging the cofferdam main body which is installed in stages, the stability of the caisson during the two floating processes of floating to the wet dock and floating to the pier position is ensured, and a whole-process dry operation environment is provided for the caisson sitting on the bottom and increasing the height in the wet dock.

The invention discloses a grouting method for a reserved water stop groove of a force transfer plate of an immersed tube bottom plate, and belongs to the technical field of immersed tube tunnel construction. The method comprises the steps that before dry dock irrigation, a plurality of Q-type water stop belts are arranged on a force transmission plate in the transverse direction of a pipe joint, the Q-type water stop belts are sequentially arranged in parallel in the axial direction of the pipe joint, and a reserved water stop groove is formed between every two adjacent Q-type water stop belts; each reserved waterstop groove is transversely divided into at least one grouting subarea along the pipe joint, a grouting pipe is correspondingly arranged in each grouting subarea, and an embedded section of the grouting pipe is fixed on the force transmission plate and is parallel to the Q-shaped waterstop belt; after the final joint end pipe joint is installed, a gas injection test is conducted on the grouting pipe, and permeability is ensured; and grouting is conducted in sequence according to the preset grouting sequence of the reserved water stop grooves, and grouting is completed in sequence according to the preset grouting subarea grouting sequence in each reserved water stop groove. According to the grouting method for the reserved water stop groove of the force transfer plate of the immersed tube bottom plate, the waterproof reliability can be improved, and the long-term waterproof durability and the construction quality are guaranteed.

The invention relates to the technical field of dry dock construction, in particular to a dock entrance cofferdam structure, a dry dock system and a construction method.The cofferdam structure comprises an earth rock cofferdam arranged in a shallow water area, a prefabricated caisson arranged in a deep water area and a dock gate, one end of the earth rock cofferdam is connected with a revetment, and the other end of the earth rock cofferdam is connected with the prefabricated caisson; the end, away from the earth rock cofferdam, of the prefabricated caisson abuts against the dock gate, the end, away from the prefabricated caisson, of the dock gate abuts against the retaining dam, the earth rock cofferdam is used in a shallow water area to reduce the cost, the prefabricated caisson is used in a deep water area to reduce the amount of earth and stones in the deep water area, the cost is reduced, and the ecological influence is relieved. The original dock gate is utilized, normal use of the dock entrance is achieved by opening or closing the dock gate, the requirement for recovery after the dock entrance is widened is met, further, the waterproof curtain blocks the water seepage path of water in the earth rock cofferdam, the waterproof effect of the earth rock cofferdam is improved, and the water stop performance of the cofferdam structure is guaranteed.

The present application relates to the technical field of VLOC ship refitting methanol fuel tank, and proposes a VLOC ship refitting methanol fuel tank and a refitting method, which can cooperate with the deck opening sequence and size, adopt a special treatment method for the methanol fuel tank structure with deck pieces, assemble from the methanol fuel tank deck opening sequence, reinforce the deck while assembling, solve the problems of the whole lifting of the deck small opening section and the whole turning of the unmanned section, realize the purpose of not occupying the dry dock for the sectional refitting of the methanol fuel tank of the VLOC ship at the mooring wharf, increase the construction portability, improve the construction environment, and save the refitting cost.

The present application belongs to the technical field of immersed tunnel engineering, and particularly relates to a soft stratum immersed tunnel dry dock foundation pit anchor cable force prediction method and system, comprising the following steps: S1: collecting relevant data of dry dock soft stratum, anchor cable and pumping and storage water circulation effect; S2: deriving a soft stratum creep model based on a nonlinear generalized Kelvin body model; S3: simulating and establishing an anchor cable axial force relaxation model according to the coupling effect of the anchor cable and the soft stratum; S4: constructing an anchor cable axial force evolution calculation equation according to the anchor cable axial force change under the pumping and storage water circulation effect; and S5: fitting and optimizing inherent coefficients in the axial force relaxation model according to test monitoring data. Through the anchor cable axial force change under the pumping and storage water circulation effect, an anchor cable axial force curve of the pumping and storage water disturbance process is established, which more truly reflects the actual stress condition of the anchor cable; and then the inherent coefficients in the axial force relaxation model are fitted and optimized through the monitoring data under the pumping and storage water circulation effect.

This invention relates to a floating barge loading and undocking method. By adjusting the draft of the wind turbine foundation, the draft of the first corner is made deeper than that of the two second corners, and the drafts of the two second corners are balanced. The draft of the first corner is higher than the top surface elevation of the support pier. This ensures that during the ascent of the semi-submersible barge, the first corner contacts the corresponding support pier on the semi-submersible barge first than the two symmetrical second corners, thus ensuring stress safety. When the corresponding support pier on the semi-submersible barge contacts the first corner, the ascent speed of the semi-submersible barge is reduced. The semi-submersible barge is controlled to rise at the reduced ascent speed until the other two second corners simultaneously contact the support pier at the widened stern of the semi-submersible barge. This further reduces the stress generated by the second corners when they subsequently contact the corresponding support pier on the semi-submersible barge, making the stress safety even better. This ensures the overall lateral balance of the semi-submersible barge and the wind turbine foundation after floating barge loading, and improves the stability control and safety of subsequent semi-submersible barge undocking and transport.

This invention discloses a multi-functional robot for ship maintenance and anti-piracy defense, belonging to the field of marine special robots and intelligent ship operation and maintenance technology. This multi-functional robot comprises two types of isomorphic modular robots: one type is a ship maintenance robot, equipped with underwater visual recognition, hull rust and dirt removal, flexible grinding, and localized spot coating functions, used for routine underwater anti-corrosion and anti-fouling maintenance of ships; the other type is a cutting and welding anti-piracy defense robot, integrating underwater cutting and welding mechanisms, capable of completing underwater damage repairs of ships, while simultaneously using the cutting mechanism to cut and stop pirate boarding boats, external components, and climbing devices, thus possessing both maintenance and anti-piracy defense functions. This invention adopts a robot division of labor and collaborative design. The maintenance end adopts a multi-machine collaborative operation mode, which is highly compatible with the self-developed multi-machine collaborative anti-corrosion and anti-fouling process. The maintenance and defense end realizes the integration of cutting, welding and anti-piracy functions. It has a reasonable structure, strong practicality and easy deployment. It can complete the entire process of underwater operation and maintenance and offshore security operations without stopping the ship or entering the dry dock. It is applicable to underwater maintenance and security defense of military and civilian ships throughout the entire life cycle and has significant market application value and creativity.

The invention relates to a dry dock for building and / or dismantling a navel structure, including a substantially horizontal floor that is located below a predetermined top level, dock side walls extending from the floor to the top level, a closable access being provided in a said side wall for moving a navel structure into the dock

The invention discloses a multifunctional tension leg deepwater wind power platform, and relates to the technical field of floating offshore wind power generation platforms. The system comprises a multifunctional caisson fixing foundation, a multifunctional elastic mooring tension leg and a multifunctional floating foundation. The multifunctional elastic mooring tension leg comprises a multifunctional elastic mooring support, a tension leg middle connector, a self-floating mooring steel pipe and a tension leg fixing connector. The multifunctional caisson fixing foundation comprises three ballast tanks and tension leg fixing joint supporting beams. The multifunctional floating foundation comprises three floating boxes, two ballast tanks, a truss tower, a lifting type stand column, a lifting type wind driven generator tower column and a multifunctional elastic mooring support supporting beam. Various prefabricated parts can be divided into two groups to be assembled in the same dry dock and then are towed to the sea in a self-floating mode, only three tugs, an air lift mud suction tool, an air compressor, a high-pressure water pump and other common construction equipment need to be used in the offshore installation period, and therefore the engineering investment can be greatly reduced while the safety and reliability are improved.

The invention discloses a self-preloading dock entrance supporting system and a construction method thereof, and belongs to the technical field of engineering supporting. According to the technical scheme, a steel pipe main support, a steel enclosing purlin and a latticed column form an assembly type frame structure, one end of the steel pipe main support is a fixed end, the other end of the steel pipe main support is a movable end, the movable end uses an intelligent pressurization node, and a sliding type support and an automatic prestress applying system are integrated. The sliding support achieves axial telescopic adjustment through a sliding guide rod and a limiting device, and the automatic prestress applying system comprises an intelligent control unit, a hydraulic module and a stress sensing system. The construction method comprises the steps of concrete support pouring, steel enclosing purlin and latticed column mounting, prefabricated support unit hoisting, prestress applying and monitoring, multi-layer support arrangement and the like. The temporary supporting device has the beneficial effects of being reasonable in structure, convenient to install, safe, efficient and suitable for temporary supporting in complex environments such as dry docks and foundation pits, and the construction efficiency and the structural safety are improved.

The application relates to a dry dock autonomous positioning and falling pier method based on a lifting pier device, which comprises the following steps: adopting a pier arrangement scheme generated by a shore computing control unit, selecting six groups of positioning piers in a matrix arranged lifting pier, determining a compensation height T according to a ship state and a ship size when the ship enters the dock, lifting the six groups of positioning piers to a set height H1+ the compensation height T, lifting the center girder pier in the flat bottom area, starting continuous drainage of the dock chamber, collecting and feeding back oil pressure signals of each positioning pier and the center girder pier to the shore computing control unit in real time, lifting all the lifting piers in the flat bottom area to a set height H, so that the ship is in a half-piered state, reading a ship roll and pitch state, judging whether the ship roll and pitch state meets the construction requirements, reading the ship roll and pitch state when the ship completely falls to the pier, judging whether the ship roll and pitch state meets the construction requirements, draining the water in the dock chamber, and tightly pulling the additional fixed support lifting piers, so that the ship completes the autonomous positioning and falling pier in the dock.

The invention discloses an ultra-deep water immersed tube tunnel tube joint active supporting and leveling construction method which comprises the following steps: before an immersed tube joint sinks, active supporting and leveling systems are symmetrically arranged at the vertex angle of the inner side of the immersed tube joint, a reserved pit hole is dug in a dry dock in advance to serve as an operation space for mounting a cushion block, and the immersed tube joint sinks after the cushion block is mounted; an active supporting and leveling system is used for automatically adjusting the posture of the immersed tube joint to a design value, mechanical operation and automatic control of the whole immersed tube installation process are achieved, manual diving operation is not needed, the construction efficiency and the installation precision are remarkably improved, meanwhile, cost and labor intensity are reduced, and then a permanent foundation is backfilled and constructed. The part, exceeding the bottom plate of the immersed tube section, of the active supporting and leveling system is removed, waterproof grease is replaced with waterproof mortar, and finally pressure bin concrete is laid on the bottom plate in the immersed tube tunnel, so that immersed tube installation is completed, the method is suitable for the water depth of more than 100 m, and the application range of post-laying method construction is expanded.

This application discloses a method for replacing the main hinge bearing of a stern door of a ship docked at a wharf, comprising the following steps: S1 Support positioning: A support platform is set up in the area corresponding to the stern door of the ship docking position, and the ship's stern door is opened and smoothly placed on the support platform; S2 Reference locking: A limiting support fixture is installed at the hull end of the main hinge of the stern door; S3 Pre-processing disassembly and inspection: The peripheral auxiliary structures of the main hinge are removed; S4 Non-destructive disassembly: After calibrating the coaxiality of the main hinge hole, the main shaft and the old bearing to be replaced are sequentially pushed out and removed from the hinge eye plate; S5 Bearing reinstallation: The new bearing is smoothly pressed into the designed installation position of the hinge eye plate using a special pressing fixture in conjunction with a hydraulic jacking fixture; S6 Reset and acceptance: The main shaft is inserted into the inner hole of the new bearing, and the bushing, sealing structure, and peripheral auxiliary structures of the main hinge are sequentially reset and installed. This method eliminates the reliance on dry docks and large-tonnage floating cranes, significantly reducing maintenance costs.

The present application relates to a kind of inland river immersed tube prefabricated dry dock dock mouth combination system dismantling construction method, belong to dry dock construction technical field.The dismantling construction method includes the following steps: from bottom to top, gradually fill water in the dock, gradually remove support structure in the process of gradually filling water;Boat side is equipped with the barge of rotary drilling, and it is parked near the mixing pile support wall outside the dock, the side of barge equipped with rotary drilling is towards mixing pile support wall, and rotary drilling equipped with barge is used to break mixing pile support wall and plastic concrete impervious wall;Backfill sand and super high concrete in each steel pipe pile in steel pipe pile support wall are taken out using rotary drilling equipped with barge, and steel pipe pile is cut underwater at gravel bed construction elevation, and the cut part of steel pipe pile is lifted away using crane ship.The dismantling construction method realizes the efficient, low-risk, low-cost dismantling of complex dock mouth combination system.

The invention relates to the field of marine technical industry, in particular to a floating type draught fan foundation launching platform and a floating type draught fan foundation launching method. The floating type draught fan foundation launching platform comprises a bearing base, a launching floating platform and a driving unit, the driving unit comprises a first control component, a second control component and a third control component, the first control component comprises a bearing sliding way and a transmission assembly, and the second control component comprises a connecting pulley and a tail pulley. And the third control component comprises a bearing guide rail and a guide wheel, and the floating type fan foundation is converted into a floating state from a supporting state through the first control component, the second control component and the third control component. In the launching process of the floating type draught fan foundation, controllable progressive load transfer is achieved, posture constraint is standardized, constraint of the deployment period of a dry dock or a large semi-submerged ship is avoided, the construction period flexibility and the parallel construction capacity are improved, and the method is suitable for deployment of a large-scale offshore wind plant.

The invention relates to a ship floating-state distance docking method and device, computer equipment and a storage medium, the method is characterized in that a to-be-docked ring section and a stern half ship are built in the same dock, an inlaying area is further arranged between the to-be-docked ring section and the stern half ship, and by reasonably utilizing the unoccupied area of the dock and combining the ring section building method, the ship floating-state distance docking can be achieved. And the to-be-butted ring section is arranged in the unoccupied area of the dock, floating after the ring section is built is completed, the ring section is moved to the designated carrying position for whole ship building, and finally the carrying inlaying area is in butt joint with the to-be-butted ring section and the stern half ship. According to the method, the dock space is utilized to the maximum extent, building of the ship key area is completed preferentially, and favorable conditions are created for improving ship undocking integrity.

The present application relates to an on-water cast-in-place construction method for a large deepwater caisson, comprising: first casting a caisson bottom slab in a dry dock, and mounting a double-wall steel cofferdam on the bottom slab; then injecting water into the dock to float the bottom slab and tow same to a pier site; using the steel cofferdam as a temporary water blocking structure, and using a cast-in-place method to construct a caisson; and once the construction of the caisson is completed, sinking and seating the caisson in place by means of water injection. The present application can greatly reduce the requirement on the excavation depth of a dry dock, and can also reduce the dredging workload of an undocking and floating-towing channel, thereby reducing construction costs, and shortening the construction period of a caisson.

The invention discloses a cooperative multi-arm spraying robot for ship dry dock operation, and relates to the technical field of spraying robots. Comprising a movable base, a storage mechanism is arranged above the movable base, a lifting frame is arranged at the upper end of the storage mechanism, a plurality of transverse electric push rods are arranged at the side end of the storage mechanism, the ends of the transverse electric push rods are connected with swing rods with different lengths, and swing mechanisms are arranged between the transverse electric push rods and the swing rods; a lifting mechanism is arranged at one end of the transverse electric push rod, and a side supporting frame is fixed to the side end of the lifting frame and provided with a plurality of sprayers. Transverse electric push rods with swing rods of different lengths are provided through the storage mechanism, the transverse electric push rods with the swing rods of different lengths are lifted to a proper height through the lifting mechanism, the swing mechanism drives the swing rods to rotate to a proper angle, zoning and simultaneous spraying are achieved, the spraying effect of zoning spraying is good, multiple mechanical arms conduct spraying at the same time, and the spraying efficiency is improved. And the spraying efficiency can be effectively improved.

This invention relates to the field of shipbuilding and marine engineering equipment manufacturing technology, and discloses a modular transfer tooling for ultra-large ship sections in a dry dock. The tooling includes a connecting platform, a support plate fixedly connected to the outer side of the connecting platform, multiple wheels rotatably connected to the bottom of the support plate, a slide rail fixedly connected to the top of each wheel, a slider slidably connected to the outer side of the slide rail, and a splicing assembly fixedly connected to the outer side of the support plate. The splicing assembly is used to achieve rapid docking and separation between multiple devices, guide and align adjacent devices, and limit and constrain the connection position during the splicing process. A support assembly is fixedly connected to the outer side of the slider, and the support assembly is used to support the ship sections. This invention achieves rapid docking and mechanical locking of multiple connecting platforms through the splicing assembly. During the docking process, docking posts are used for initial guidance and positioning, and the first splicing block, second splicing block, extrusion block, and locking plate work together to achieve this.

According to the installation structure of the marine liquid cargo distribution board and the installation method of the installation structure, the installation structure adopts the method that the cable is arranged on the liquid cargo distribution board, and the cable from the liquid cargo distribution board to equipment in a superstructure area can be directly laid in the superstructure area; the cable from the liquid cargo distribution board to the cargo compartment area equipment directly penetrates through the front wall from the main deck to enter the cargo compartment area, and the cable in the cargo compartment area does not need to wait for other areas to pay the remaining cable length, so that all the areas work in parallel, and a large amount of cable length cost and working hours can be saved. In the aspect of base installation, a form of unequal angle steel and a support is adopted, the height of a single foot of an uneven deck is adjusted within a controllable range under the limited base height, a large amount of welding and polishing working hours are reduced, and the construction efficiency is further improved. According to the invention, a conventional liquid cargo distribution board cable entering form is broken, so that the cable laying efficiency is greatly improved, the construction period of electrical operation in a dock is shortened, and the popularization value is extremely high.