369 results about "Ballast tank" patented technology

The invention relates to the technical field of aircrafts, in particular to a built-in compressed air and carbon dioxide linkage drainage system and an aircraft. The drainage system comprises a drainage device, a water ballast tank, a first connecting pipeline and a control unit, a first storage cavity for storing liquid carbon dioxide is formed in the first power unit, a second storage cavity for storing high-pressure air is formed in the second power unit, and a pressure reduction cavity is formed in the pressure reduction unit; the first storage chamber and the second storage chamber are both selectively communicated with the pressure reduction chamber; the water ballast tank is provided with a third storage chamber selectively communicated with the pressure reduction chamber; the first connecting pipeline is connected with the second power unit and the pressure reduction unit, and a first on-off valve is arranged on the first connecting pipeline; the first power unit is suitable for converting liquid carbon dioxide into high-pressure supercritical carbon dioxide under the control of the control unit, and the high-pressure supercritical carbon dioxide enters the third storage chamber after being decompressed by the decompression chamber, so that the first connecting pipeline selectively communicates with the second storage chamber and the decompression chamber.

According to the deep and far seawater suspension oil and liquid storage device and the underwater oil storage method thereof, a layered tank body structure is adopted, and a load adjusting cabin, a flexible oil storage cabin and a water storage cabin are arranged from top to bottom. The load adjusting cabin is used for dynamically adjusting the net buoyancy of the device through seawater feeding / discharging to reduce the load of the mooring system; the oil storage cabin adopts a flexible storage bag to adapt to volume change and is linked with the water storage cabin through a movable composite heat preservation partition plate, the partition plate comprises an active heating layer and a phase change material layer, when the oil temperature is too low, the active heating layer directionally heats crude oil, the phase change layer absorbs dissipated heat, latent heat is released during external low-temperature impact to buffer temperature drop, and dynamic temperature control is achieved. The device is moored and fixed through a gravity anchor, and multiple types of sensors are arranged to monitor the posture, stress, oil temperature and leakage state of the tank body in real time. The problems of oil storage tank deformation, high pour point oil heat preservation and mooring stability under the deepwater high-pressure environment are solved, and the device has the advantages of being low in construction cost, high in environmental adaptability and efficient in operation and maintenance and is suitable for safe storage and transportation of deep and far sea oil and gas resources.

The invention discloses a novel floating type converter station platform suitable for deep and far sea, and belongs to the technical field of offshore platforms, the novel floating type converter station platform comprises a floating platform, a buoyancy cabin, a stand column, a water ballast tank and a mooring rope, the floating platform is used for supporting a converter station and related operation equipment, and the floating platform is located on the sea surface; the buoyancy cabins are correspondingly arranged on the bottom surface of the floating platform and provide buoyancy support for the floating platform; the four stand columns are correspondingly connected to the four corners of the floating platform, and the sectional area of the water ballast space is at least two times that of the stand columns. The four water ballast tanks are correspondingly arranged at the bottoms of the stand columns, and the gravity center and buoyancy of the converter station platform are adjusted by controlling injection or drainage of ballast water of the water ballast tanks. The mooring cables comprise a plurality of mooring cables which are correspondingly arranged at the four corners of the floating platform respectively, and the floating platform is fixed to the seabed through multi-point anchoring. The floating type converter station platform can flexibly adapt to the deep and far sea environment, the construction cost and the collapse risk are reduced, and the bearing capacity, the structural strength and the stability of the floating type converter station platform can be improved.

The invention relates to the technical field of underwater vehicles, and discloses a built-in phase change drainage system and an underwater vehicle, the built-in phase change drainage system comprises a drainage device, a water ballast tank and a control unit, the drainage device comprises a first power unit and a pressure reduction unit, a first storage chamber for storing liquid carbon dioxide is arranged in the first power unit, and a pressure reduction chamber is arranged in the pressure reduction unit; the water ballast tank is provided with a containing cabin used for containing water, and the containing cabin is selectively communicated with the pressure reduction cavity. The control unit is in communication connection with the first power unit, the first power unit is suitable for converting liquid carbon dioxide into high-pressure supercritical carbon dioxide under the control of the control unit, and the carbon dioxide enters the containing cabin after being subjected to pressure reduction of the pressure reduction cavity so as to discharge water in the containing cabin. The drainage system is safe, efficient and high in drainage capacity.

The invention discloses a tension leg type offshore wind power platform and a tendon dynamic balance adjusting method.The wind power platform comprises a center stand column, side buoys, a floating bridge and tendons, a plurality of ballast tanks are arranged in the floating bridge and the side buoys, and a plurality of emergency water inlets are formed in the bottom of the floating bridge and the tops and the bottoms of the side buoys; a ballast tank communicating opening which can be selectively communicated with the buoy ballast tank is formed in the lower part of the floating bridge ballast tank close to the buoy; and a ballast system is arranged in each ballast tank, and the ballast systems can be used for carrying out pressure discharge on the ballast tanks or selectively transferring water in any ballast tank to other ballast tanks. The internal ballast can be selectively adjusted through a natural flowing mode and / or a mechanical mode based on the tendon tension, the tendon failure position and the tendon failure number can be judged, an emergency control strategy is formulated according to the tendon failure condition, the service life of a mooring system is prolonged, and the safety of the mooring system is improved. And the self-storage performance of the tension leg platform can be improved when the mooring system breaks down.

The invention discloses a ship ballast water tank water level real-time monitoring and remote control device, and relates to the field of ship ballast water tank water level control. According to the real-time monitoring and remote control device for the water level of the ship ballast water tank, a first data acquisition and analysis unit is used for acquiring water level monitoring data of each ballast water tank of a ship to be controlled in real time and analyzing the water level monitoring data to obtain an adjusted water level value; the second data acquisition and analysis unit is used for acquiring the ship state monitoring data and the sea condition monitoring data, analyzing to obtain a ship state water level regulation factor and a sea condition water level regulation factor, and analyzing to obtain a corresponding comprehensive water level regulation factor; the water level monitoring value of the corresponding ballast water tank is obtained through the comparison control unit, the water level monitoring value and the water level control interval are analyzed, and control measures are taken based on the analysis result so as to ensure that the water level of the ballast water tank can be corrected in time under the severe sea condition. Therefore, the sailing safety of the ship is enhanced.

The invention discloses a split type suction pile anchoring foundation and an offshore construction method, and relates to the technical field of ocean engineering, and the split type suction pile anchoring foundation comprises a suction pile structure and a buoyancy tank structure; an apron board structure and a lug plate structure are arranged on the side wall of the suction pile structure; a drainage pipeline penetrates through the top of the suction pile structure and communicates with the interior of the suction pile structure and the water suction pump. A balance weight cabin and a ballast tank are arranged in the buoyancy tank structure, and a pressure discharging and loading system is arranged in the ballast tank; the supporting leg structures are arranged at the bottom of the buoyancy tank structure, and the buoyancy tank structure is pressed on the apron board structure through the supporting leg structures; a first eye plate connected with a mooring rope or a mooring chain is arranged on the outer side wall of the buoyancy tank structure. The technical problems that due to the fact that a traditional suction pile anchoring foundation is limited by the dead weight, the depth of penetrating into soil in the soil conditions such as sandy soil is insufficient, enough pressure difference cannot be generated in the closed space formed by the cylinder wall and soil in the space outside the cylinder wall, and the suction barrel reaches the preset installation depth and the designed tensile strength and the designed pulling strength are solved.

The utility model discloses an anti-corrosion sensor for monitoring corrosion of an in-service FPS0 ballast tank, which comprises a sensor shell, a waterproof cable extending into an inner cavity is arranged on the sensor shell, a silver chloride electrode is arranged at the bottom of the sensor shell, one end of the silver chloride electrode extends into the inner cavity and is electrically connected with the waterproof cable in the inner cavity, and the other end of the silver chloride electrode extends downwards. A flange plate used for sealing the inner cavity is arranged at the top end of the sensor shell, a connecting hole allowing the waterproof cable to extend out is formed in the flange plate, a first connecting part used for sealing and fixing the waterproof cable is arranged on the flange plate, and a second connecting part used for sealing and fixing the silver chloride electrode is arranged at the bottom end of the sensor shell. And the surface of the sensor shell is provided with a fixed connecting device for quickly installing the sensor shell and a rib plate on the inner wall of the ballast tank. Installation can be achieved in the offshore FPSO operation period, damage to a ship body is avoided, thermal treatment is not needed, and rapid installation and replacement can be achieved.

The invention discloses a tension leg floating type wind power platform control system which comprises a central control mechanism, an environment monitoring mechanism, a ballast monitoring mechanism and a ballast control mechanism. The central control mechanism comprises an acquisition assembly and a data service assembly, and the acquisition assembly is in communication connection with the data service assembly; the environment monitoring mechanism is used for monitoring the marine environment and the motion state of the platform; the ballast control mechanism comprises a load discharge pump, a ballast tank, an electro-hydraulic valve and a lower floating body; the electro-hydraulic valve is arranged between the load discharge pump and the ballast tank; the ballast monitoring mechanism is used for monitoring the pressure of a load discharging pump, the liquid level of a ballast tank and the sea discharging flow; wherein the environment monitoring mechanism and the ballast monitoring mechanism are in communication connection with the collection assembly, the electro-hydraulic valve is in communication connection with the data service assembly, and the tension leg floating type wind power platform control system solves the problem that an existing tension leg floating type wind power platform is poor in safety in the installation and use process.

The utility model discloses a kinetic energy recovery structure of a wind energy and wave energy integrated power generation system, which comprises a wind turbine, the bottom of the wind turbine is fixedly connected with a tower structure, and the outer surface of the tower structure close to the bottom is fixedly connected with a plurality of transverse support rods and inclined support rods. The ends, away from the tower structure, of the inclined supporting rods are fixedly connected with a buoyancy cylinder and a liquid ballast tank, the buoyancy cylinder is fixedly connected with the top of the liquid ballast tank, a ventilation hole is formed in the position, close to the center, of the top of the buoyancy cylinder, and a communicating hole is formed in the outer surface of the liquid ballast tank. According to the floating foundation, the additional mass and additional damping of the wind turbine are increased through the arrangement of the wind turbine and the buoyancy cylinder, the internal mechanism of the buoyancy cylinder and the liquid ballast tank, the movement response of the floating foundation can be reduced, and therefore the overall movement stability is guaranteed, and the comprehensive development capacity of offshore wind energy and wave energy is improved.

The utility model discloses a water quality monitoring stratified sampling device, relates to the technical field of water quality sampling equipment, and aims to provide a water quality monitoring stratified sampling device which is simple in structure and capable of automatically sampling at a corresponding depth. A water inlet and outlet pipe is arranged on the side face of the submersible pump, the submersible pump is used for supplying water to the ballast tank or discharging water from the ballast tank, a storage battery is arranged in the submersible pump, and a sampling tank is arranged on the submersible pump. When the sampling tank moves to a water layer with the corresponding depth, the water pressure of the current position exceeds the supporting force of the spring, the water pressure extrudes the base plate open and then injects the water into the water storage cavity, after water taking is completed, the base plate is driven by the spring to reset, the purpose of automatically sampling the water quality of the corresponding water depth is achieved, and the achieved structure is very simple and reliable.

The utility model discloses a dispersed ballast tank structure of a culture net cage. The dispersed ballast tank structure comprises a ballast tank base platform and a net cage assembly, the ballast tank base station comprises a base station frame and a plurality of transverse trusses; the base platform frame comprises two first transverse trusses, a plurality of first longitudinal trusses, a plurality of first ballast tanks and a plurality of second ballast tanks. The base platform frame is composed of the first ballast tanks, the second ballast tanks, the transverse trusses, the first transverse trusses and the first longitudinal trusses, so that the stability of the dispersed ballast tank structure of the aquaculture net cage is improved, the four corners of the second ballast tanks form a positioning result, the good wind wave resistance is achieved, and the external force resistance is improved; according to the dispersed ballast tank structure of the aquaculture net cage, the floating state load adjusting mode of the aquaculture net cage is improved, the structure is more convenient to construct, the overall weight is reduced, the construction and operation cost is reduced, and offshore safe and efficient operation and maintenance of the aquaculture net cage are more convenient.

The present invention relates to the technical field of ballast tanks, and discloses an adjustable ballast tank, a medium mixing method thereof, and a floating offshore platform. The adjustable ballast tank includes: a plurality of medium capsules, which are nested in sequence or arranged closely together, each medium capsule having an independent medium cavity, each medium cavity being capable of storing a medium, and each medium cavity being connected to the outside world through a channel opening on the medium capsule for filling or discharging the medium. The present invention can store a variety of media by providing a plurality of medium cavities, so that the floating offshore platform can mix and use media when operating at sea, making it more convenient to obtain the media and having better economic benefits.

The invention discloses a deep and far sea seedling raising, breeding, refrigerating, processing and guaranteeing integrated floating fishery base, and relates to the technical field of deep sea breeding, the deep and far sea seedling raising, breeding, refrigerating, processing and guaranteeing integrated floating fishery base comprises a ship body, the ship body is provided with a breeding processing system and a snorkeling system, the breeding processing system comprises a capturing cabin, a breeding cabin, a freezing cabin and a processing cabin, and the snorkeling system comprises a ballast cabin; the capturing cabin is used for capturing fish schools in deep sea, the breeding cabin is used for breeding fish fries laid by female fishes in the fish schools to be formed, the freezing cabin is used for refrigerating the formed fishes, the processing cabin is used for processing the refrigerated fishes, the ballast cabin is used for containing seawater, and the ship body floats or dives by adjusting the seawater amount of the ballast cabin. A complete production line can be formed in the deep sea, resources are saved, and efficiency is improved.

The utility model discloses a floating net cage platform, which relates to the technical field of aquaculture equipment and comprises a platform body and a water injection and drainage component. The platform body comprises a port and a starboard which are symmetrically arranged based on the middle line face of the platform body. N left ballast tanks are arranged in the left board, N right ballast tanks are arranged in the right board, and the serial numbers of the N left ballast tanks and the serial numbers of the N right ballast tanks are sequentially increased from the bow side to the stern side of the platform body; the kth left ballast tank and the kth right ballast tank are symmetrically arranged based on the median plane; the water injection and drainage assembly is respectively communicated with the N left ballast tanks and the N right ballast tanks; the water injection and drainage assembly is used for synchronously injecting and draining water into the kth left ballast tank and the (N + 1-k) th right ballast tank; 1 < = k < = N. The left ballast tank and the right ballast tank are symmetrically arranged, the water injection and drainage assembly is used for water injection and drainage according to the mode, and the possibility that the floating net cage platform inclines in the sinking and floating process is reduced.

Disclosed is a flow-guide device for an offshore platform, comprising a flow-guide column base, a ballast level control device and a spiral side belt system, wherein the flow-guide column base is located at the bottom of an offshore platform, and multiple flow-guide column bases are arranged symmetrically and distributed in a ring array; the flow-guide column base is rotatably connected to the offshore platform; a ballast compartment is arranged in the flow-guide column base, and the ballast level control device is used for controlling a ballast level in the ballast compartment; and the spiral side belt system is arranged outside the flow-guide column base and used for restraining vortex-induced resonance. The flow-guide column base and the offshore platform can be kept in a relatively fixed state by means of a clamping device, such that the offshore platform is able to rotate synchronously with the flow-guide column base.

The invention belongs to the technical field of ship and ocean icebreaking, and particularly relates to an icebreaker auxiliary icebreaking method based on adjustment of ballast water induced pitching motion. The water ballast tanks are arranged in the head area and the tail area in the icebreaker, in the continuous icebreaking process, the carrying process between the water ballast tanks in the head area and the water ballast tanks in the tail area is repeatedly executed, the icebreaker generates the additional pitch angle of 3-7 degrees, and the icebreaking effect is improved. The water ballast tanks are arranged in the left side area and the right side area in the icebreaker, when the icebreaker is trapped in an ice group, the ice breaker generates a continuous rolling process by repeatedly executing the carrying process between the water ballast tanks in the left side area and the water ballast tanks in the right side area, the icebreaker is helped to break large ice layers in the ice group, and the ice breaking efficiency is improved. And ice breaking and escape are assisted.

A variable ballast propulsion shipping vessel comprising a lead segment, a cargo segment(s), and / or a tail segment hingedly attached in series. Each lead and cargo segment includes a bottom-mounted fixed ballast, a top-mounted dorsal wing with rudder, and side mounted pairs of planed wings projecting laterally (fixed or stowable). An onboard variable ballast tank is selectively air filled using a compressed air compartment and water filled / exhausted using a ballast port(s). An battery bank is charged by an battery charger (e.g., using impellers) and powers an air compressor, rudder and / or planes. A cargo bay in the cargo segment(s) is accessible through a cargo door, a hatch, and / or a capped filler neck. A shipping vessel control system creates and distributes control commands (through wired and / or wireless interfaces) to selectively operate the respective ballast tanks of the lead and cargo segments to change travel state among positive, negative, and neutral buoyancies.

The invention discloses a barge type floating fan capable of avoiding resonance between a wave period and the fan, which comprises a floating body and the fan, and the floating body is connected with the fan; a penetrating through groove is formed in the middle of the floating body, a first adjusting plate and a second adjusting plate which can move in a crossed mode are arranged in the extending direction of the penetrating through groove through a first sliding rail locking mechanism, and the penetrating through groove is divided into a plurality of size-adjustable damping pools through the first adjusting plate and the second adjusting plate. A plurality of water permeable holes communicated to the penetrating through groove are formed in the periphery of the floating body; a plurality of fixed ballast tanks, a plurality of variable water ballast tanks and a plurality of buoyancy tanks are sequentially arranged on the floating body in the extending direction; the periphery of the floating body is provided with an anti-swing plate capable of sliding in the extending direction through a second sliding rail locking mechanism. Through active cooperative control of the adjustable damping pool, the stabilization plate and the permeable structure, compared with a single adjusting mechanism, the fault tolerance rate is higher, the dynamic response precision and the extreme environment adaptability are remarkably improved, and wave energy dynamic dissipation and floating body resonance risk avoidance are achieved.

The invention provides a hydrogen energy air-sea cross-medium aircraft, which comprises a main body assembly, the main body assembly is provided with a driving assembly, an energy assembly and a control assembly, and the main body assembly comprises a fuselage, wings, wing flaps, a direction tail vane, a top sealing cover, a belly diversion channel, a water ballast tank, a first mounting groove and a second mounting groove; the two wings are symmetrically and fixedly connected to the two sides of the fuselage, the fuselage adopts a bionic marine fish streamline design, wing flaps are installed on one sides of the wings, and a direction tail vane is installed at one end of the fuselage. The advantages of high energy density and long endurance time of hydrogen energy of the hydrogen fuel cell are fully utilized, and the cross-domain operation capability of the cross-medium aircraft is utilized, so that the actual demand problems of ocean development, ocean inspection, safety search and rescue, structural detection in a water area, water quality sampling and the like in a cross-medium range in the air and sea fields are solved; the invention provides the hydrogen energy cross-medium aircraft which has the advantages of long distance, long endurance and cross-domain operation.

The present invention discloses a polyaspartic acid ester-modified epoxy resin, a non-toxic, environmentally friendly, wear-resistant, and anti-corrosion coating for ships containing the resin, as well as a preparation method and application. The structural formula of the polyaspartic acid ester-modified epoxy resin is as follows: The solvent-free, non-toxic, and anti-corrosion and anti-corrosion coating of the present invention uses the polyaspartic acid ester-modified epoxy resin as a film-forming material, can be cured at room temperature, and exhibits excellent adhesion, salt spray resistance, and media resistance. When applied to ship ballast tanks, drinking water tanks, oil and sewage tanks, and other compartments, or other metal substrate surfaces for corrosion protection, it provides excellent long-term anti-corrosion performance.

The invention relates to the technical field of corrosion prevention of marine equipment, in particular to a sacrificial anode for a dry-wet alternating and high-temperature environment and a preparation method and application of the sacrificial anode. According to the sacrificial anode, the composite material composed of the carbon nanotubes and the metal elements is added into the aluminum-based alloy, the microstructure of the aluminum alloy is improved due to the addition of the carbon nanotubes, the thermal stability of the anode is improved, surface activation of the anode is promoted, the phenomenon that the surface of the anode is crusting and even passivated due to the influence of high temperature and a dry-wet alternating environment is prevented, and the service life of the anode is prolonged. Meanwhile, good conductivity is maintained; and by optimizing the ratio of the carbon nanotubes to the metal elements, the anti-corrosion protection efficiency on a metal structure in a high-temperature and dry-wet alternating environment is enhanced. Therefore, the method is expected to be applied to ocean environments such as ocean crude oil ship ballast tanks, FPSO (Floating Production Storage and Offloading) ballast tanks and mobile oil production platforms. The preparation method provided by the invention is simple and convenient, has a good industrial application prospect, and can improve the production efficiency and reduce the environmental pollution.

A floatable foundation (100) for a wind turbine generator and / or electrical equipment (61), the foundation (100) comprising: a central column structure (10,11,12); at least three outer column members (20,21,22) disposed about the central column structure (10,11,12); at least three horizontally extending lower connection members, such as pontoon members (30,31,32), each horizontally extending lower connection member fixed to and extending between the central column structure (10,11,12) and a respective one of the at least three outer column members (20,21,22); and three horizontally extending upper connection members, such as beam members (40,41,42), each horizontally extending upper connection member fixed to and extending between the central column structure (10,11,12) and a respective one of the at least three outer column members (20,21,22), wherein each column member (20,21,22) comprises a ballast tank (81) configured for holding water ballast and the ballast tank (81) vertically spans a design waterline (91) of the respective column member (20,21,22).

The invention discloses a construction method for floating transportation and installation of a dock gate and a corresponding device, and belongs to the technical field of immersed tube tunnels, and the construction method comprises the following steps: S1, towing the dock gate to a point by using a tug, S2, carrying out mooring and abutting on the dock gate, S3, injecting water into a water ballast tank at the bottom of the dock gate until the dock gate sinks in place, and S4, draining water from a dock entrance after the dock gate sinks in place; construction is conducted through a dock gate consignment and installation method, the dock gate is consigned to a designated point position, and the accuracy of the dock gate installation position is guaranteed in a cabling and abutting mode. The consignment and installation method has the advantages of being high in operability, rapid and convenient to construct, wide in applicability and the like. The defect that in the prior art, floating installation or delivery of the dock gate is very difficult in actual construction is effectively overcome.

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 invention relates to a liftable energy self-sufficient ocean communication buoy system which comprises a buoy body. The wave energy power generation device is installed in the buoy body and used for converting wave mechanical energy into electric energy when the buoy body moves up and down along with waves; the energy storage device is electrically connected to the wave energy power generation device; the lifting system comprises a ballast tank and a mechanical lifting device; wherein the ballast tank is arranged in the buoy main body and is used for adjusting the buoyancy by adjusting the water quantity in the tank; the mechanical lifting device is fixed to an external anchoring foundation, connected to the buoy body and used for driving the buoy body to do lifting motion in water. The communication device is used for carrying out data communication in a water surface state or an underwater hidden state; and the control device is used for controlling lifting of the buoy main body and switching of communication modes of the communication device according to environmental parameters or remote instructions, and has the advantages of being high in severe sea condition resistance, high in concealment and scene adaptability, self-sufficient and stable in energy, low in operation and maintenance cost and reliable in communication function.

The disclosed relates to systems and methods for generating wave energy incorporated into the floating production, storage and offloading units, which comprises: one or more energy extraction chambers arranged on sides of a floating production, storage and offloading unit; each energy extraction chamber having a lower opening being obtained from removal of a bottom plate of the chamber to provide fluid communication between the interior of the chamber and the seawater; an upper opening made at the top of the chamber for passage of air flow; and an energy generation assembly for converting air flow from the opening into electrical energy; wherein each air chamber is obtained by widening a ballast tank in the direction opposite to the center of the unit to create a resonance condition in the chamber so that a final chamber widening width is determined based on a resonance period of interest of the chamber.

An independent ballast tank with a ballast pump room, the port and right hulls of the hull are provided with cargo oil tank areas, the cargo oil tank areas have multiple ballast tanks, each ballast tank is composed of two side ballast tanks and two bottom ballast tanks to form a "concave"-shaped structure, a ballast pump room is provided at the center of the side ballast tank located at the main deck, the ballast pump room runs through the side ballast tank and the bottom ballast tank from top to bottom, the ballast pump room extends from the main deck to the outer bottom plate, a ballast pump is provided in the ballast pump room, the pump head of the ballast pump is provided at the bottom of the ballast pump room, the pump head is connected to a pump pipe, the pump pipe is fixed in the ballast pump room through a bracket, a ballast pump cover and a manhole cover are provided on the top of the ballast pump room, and the ballast pump cover is connected to the pump pipe. The present invention realizes the installation of the deep well ballast pump and ensures the normal use of the ballast system function by arranging a small-volume deep well ballast pump room and a ballast system at the ballast tank position in the cargo hold area of ​​the floating oil storage vessel.

The invention provides an internal sensor watertight protection device for changing a void tank into a ballast tank, and particularly relates to the technical field of ship transformation. The protection device comprises a waterproof cabin and a probe sleeve. An equipment mounting port and an equipment access port are respectively formed in two ends of the waterproof cabin; a wire inlet interface is formed in one side, close to the equipment access hole, of the side wall of the waterproof cabin; the equipment mounting port is connected with the first blind plate flange through the first connecting flange; the equipment access hole is connected with the second blind plate flange through the second connecting flange; a through hole is formed in the center of the first blind flange; the probe sleeve penetrates through the through hole, one end of the probe sleeve extends into the inner cavity of the waterproof cabin, and the other end of the probe sleeve is fixed with an installation screw seat of an original sensor of a ship bulkhead. The device is simple in structure and good in air tightness, watertight protection can be carried out on an original sensor when a void tank is changed into a ballast tank, no new mounting hole needs to be additionally arranged, hot work does not need to be carried out, and bin cleaning and explosion measurement work is avoided.

The utility model relates to a kind of assembled cutter suction dredger side pontoons with sealing transition structure.The side pontoons are sequentially connected by head section side pontoon monomer, middle side pontoon monomer and tail section side pontoon monomer.The head section side pontoon monomer includes head ballast tank, first main buoyancy empty cabin and deck, and first sealing transition empty cabin is arranged at the end thereof.The middle side pontoon monomer includes second main buoyancy empty cabin, storage cabin and deck, and second sealing transition empty cabin with the same width as the first sealing transition empty cabin is arranged at the end of the storage cabin, and the two are sealingly connected by fastener, and third sealing transition empty cabin is arranged at the side of the middle side pontoon monomer adjacent to the main pontoon.The tail section side pontoon monomer includes generator cabin, fuel cabin, tail ballast tank and deck, and fourth sealing transition empty cabin is arranged at the side of the tail section side pontoon monomer adjacent to the middle side pontoon monomer, and fifth sealing transition empty cabin is arranged at the side of the generator cabin adjacent to the main pontoon.The design realizes efficient, stable and safe operation of side pontoons through modular assembly and sealing transition structure optimization.