39 results about "Research vessel" patented technology

The invention discloses an original-space detector and a detection method for beach shallow sea sediment strength. The original-space detector for the beach shallow sea sediment strength comprises a control ship and a frame device, wherein the control ship is provided with an air charging device and a vacuum generator and the frame device is provided with an injection device and a hydraulic device. An air pressure chamber on the frame device is connected with the air charging device and the vacuum generator. The air pressure chamber is a cylindrical leather bag with cross section being circular and vertically arranged. A protection cylinder is further arranged outside the leather bag. Water discharge holes are formed in the surface of the protection cylinder. The water discharge holes are in an oval shape, a V shape or a U shape. The method comprises the steps that the frame device is pulled to a target point through a ship and sinks to the seabed through self weight, strength of sediment under the seabed is detected through a hydraulic injection manner, contacting probe strength testing parameters are obtained, test points stratums are divided according to strength values of various layers of soil, names are chosen for the stratums, and bearing force and modulus on beach shallow sea foundation sole are confirmed. According to the original-space detector and the detection method for the beach shallow sea sediment strength, the defect that a large-scale research vessel can not be driven to a beach shallow sea range to conduct original-space strength detection for the seabed sediment is overcome, geological exploration can be repeatedly conducted in different seabed areas, cost is greatly reduced, and efficiency is improved.

The invention belongs to the technical field of ships and ocean engineering, and in particular relates to a test method for a cross-sectional flow field or bubble field of a ship model. The invention realizes the measurement of the space-time distribution of the air bubbles in the hull, and can be used to study the distribution law of the air bubbles generated in the hull along the bottom of the ship. The invention has simple structure and reasonable layout, can convert the distribution of air bubbles on the cross section into a mathematical model available for analysis, and provides an effective technical solution for studying the distribution law of air bubbles along the bottom of a ship.

The invention belongs to the field of marine auxiliary equipment and provides a clamp type extension auxiliary device used in a polar research vessel. The clamp type extension auxiliary device is applicable to the out-of-vessel building of oceanographic research equipment. The technical solution of the clamp type extension auxiliary device comprises a clamp type fixing device, an angle adjusting device and an extension structure, wherein a U-shaped clamp assembly in the clamp type fixing device can grip a handrail at the edge of the polar research vessel and complete the fixing of the entire device by virtue of screws; the extension structure comprises an extension support approximating to a right triangle and a connection component arranged at the front end of the extension support and used for being connected with the research equipment; the angle adjusting device comprises a hinge assembly and a fixing assembly; the hinge assembly is connected to the clamp type fixing device and theextension structure; and the pitch angle of the extension structure can be adjusted by adjusting the height of clamp plates of the fixing assembly. The clamp type extension auxiliary device used in the polar research vessel has the advantages of quick recovery, light weight, reliability, applicability to extreme marine environment and connection with various equipment.

The invention provides a seabed bottom type measurement apparatus bottoming process combined determination method and device. The method includes that an underwater magnetic trigger switch and an acoustic velocity measuring device are arranged on a bottom type measurement apparatus, whether the device is at the bottom is determined by the relative position change of the magnetic part and the switch element of the magnetic trigger switch; based on the big difference of acoustic velocity in the air and water, whether the device is in the air or water is determined by the acoustic velocity measuring device; and by means of the two outputs (bottoming and non-bottoming signals) of the magnetic trigger switch and the two outputs of the sound velocity measuring device (air velocity and water velocity), the four states, namely, the deck parking state, the deck hoisting state, the underwater hoisting state, and the seabed bottoming state, of the device from the research vessel deck to the seabed are distinguished. The method is simple in principle, high in operationality, and easy to realize, fully utilizes the technologies in the prior art, e.g. the magnetic trigger switch, a minisize CTD or a minisize SVP (for acoustic velocity measurement) etc., and greatly improves the reliability and prevents misoperation.

A double-draft three-body scientific research vessel, including a main deck, a main hull is arranged directly below the main deck along the front-to-back direction, side hulls are respectively arranged on the left and right sides below the main deck, and the lower part of the rear end of the main hull is along the front-to-back direction There is at least one shallow-draft water-jet propeller, and the lower parts of the rear ends of the two side hulls are respectively equipped with deep-draft water-jet propellers along the front and rear directions. The two sides of the main hull are symmetrically equipped with multiple conventional ballast tanks and multiple There are multiple deep water ballast tanks symmetrically arranged on both sides of the two side hulls, and there are more than one ballast tanks on the main hull to adjust the storage in the conventional ballast tanks and deep water ballast tanks. The ballast regulation pump for the amount of water and more than one generator set. The present invention can be used in coastal shoal waters and deep waters at the same time, has a wide deck area, a larger laboratory area in the cabin, and has high rapidity, excellent ship stability and seakeeping performance.

The invention discloses a connecting device for a fermented container and an extracellular fermented product researching container. The fermented container is a flat bottom flask with an aeration device and a stirring device, wherein a connecting pipe is arranged at the bottom of the flat bottom flask; the extracellular fermented product researching container is a test tube with an aeration device, wherein a connecting pipe is arranged at the bottom of the test tube; the connecting device is composed of a freely detachable glass sleeve coaxially melted with a G1 sand chip, coaxially arranged regenerated cellulose membrane, an O-shaped silica gel gasket and an inserting pipe inserted into the glass sleeve; the cross section at the bottom end of the inserting pipe is closely contacted with the O-shaped silica gel gasket; the G1 sand chip, the regenerated cellulose membrane and the O-shaped silica gel gasket are closely contacted by squeezing the cross section of the bottom end of the inserting tube; extending pipes with screw or dull polish sorted with the flat bottom flask and the bottom of the test tube are arranged at two ends of the device. The device provided by the invention is simple and rapid in assembly, freely detachable, convenient to use and is widely applied in an extracellular active component system for connecting the fermentation and researching the fermentation generation.

The present disclosure provides a device for testing geomechanical parameters of deep-sea rare and soft substrates with different grounding ratios, and relates to the technical field of deep-sea engineering and equipment. The installation can be completed quickly on the ship, and the soil samples on the ship can be tested for the indentation process, as well as the shear strength test under different indentation states (achieved by different grounding specific pressures), so as to realize the disassembly of the test device; The sliding connection between the side plate and the guide rod and the first chute enables the device to test the soil of any block in the box sampler; by changing the setting of the weight plate in the weight seat, it can simulate different Ground pressure. The device can timely test the shear strength and the subsidence process of the soil samples collected from the seabed by the deep-sea scientific research vessel, simulate the interaction between the grounding mechanism and the substrate during the driving process of the submarine operation vehicle, and ensure the accuracy of the test results. .