16 results about "Water channel" patented technology

This invention relates to the field of unmanned surface vessel (USV) path planning technology, specifically to a path planning method for USV swarms in narrow waterways. The method includes: constructing a narrow waterway environment model; constructing a USV kinematic model; constructing a training set based on data from the narrow waterway environment model and the USV kinematic model; constructing a path planning model based on a multi-agent proximal policy optimization algorithm employing an attention mechanism, wherein the reward function of the path planning model considers an adaptive reward mechanism based on waterway width to achieve a triangular formation for the USV swarm in wide waterways and a longitudinal formation in narrow waterways; training the path planning model using the training set; and applying the trained path planning model to a real-world path planning task to achieve cooperative navigation and collision avoidance of the USV swarm in narrow waterways. This invention improves the path planning capability and navigation safety of USV swarms in narrow waterway environments.

The utility model relates to a marine direct-drive permanent magnet synchronous motor, which comprises a rotor, a conducting ring, a front bearing outer cover, a cylindrical roller bearing, a deep groove ball bearing, an end cover, a stator, a junction box, a bearing inner cover, a bearing sleeve, a rear bearing outer cover, a round nut, a rotary transformer, a convex panel type flat welding steel flange, a bearing support and a spiral water channel water-cooling base. A low-rotating-speed sailing mode is achieved, energy conservation and emission reduction of the ship are better facilitated, and the transportation cost is saved.

This invention provides a water channel control system for dual inverters. The system includes: a first inverter, a second inverter, a first inlet pipe, a second inlet pipe, a third inlet pipe, a fourth inlet pipe, a first valve, a second valve, and a control unit. The first valve is installed on the third inlet pipe and is electrically connected to the control unit. The second valve is installed on the fourth inlet pipe and is also electrically connected to the control unit. The control unit can control the opening and closing of the first and second valves. This water channel control system for dual inverters can meet the different cooling requirements of dual inverters under different operating conditions, preventing the inverters from being power-limited due to insufficient heat dissipation, thus improving vehicle performance and economic efficiency.

The utility model belongs to the field of ship power and propulsion system technology, specifically speaking is the river ship pod type electric propulsion device, including hollow shaft, the hollow shaft end portion sleeve fit connection has the conductive slip ring, through the orderly connection of hollow shaft and conductive slip ring, servo motor turntable, propulsion motor, fixed bolster, reach integration, solved the transmission of electric energy, control signal, monitoring alarm signal, simultaneously this pod type electric propulsion device can realize 360 degree rotation, can make the ship in the long waterway, port terminal etc. Limited water area realizes the complex control such as spot turning, transverse movement, oblique navigation, pod type electric propulsion device can be installed integrally to the ship, and the disassembly is convenient, improves the maintenance efficiency, and the device adopts direct drive mode, avoids the energy loss of mechanical drive, and the economic operation of the ship is convenient, and through cutting device, the entanglement is avoided in time, and the power is suddenly lost, and the ship control property is guaranteed.

The design concerns a work or pleasure vessel capable of unobstructed passage through very shallow water passages, such as (but without exception) fixed bridges and the like. The upper part of the freeboard, the inflatable section, will collapse upon deflation of the air inside and rest upon the rigid part of the hull, thereby creating a very limited clearance height. This allows these obstacles in the waterway to be passed effortlessly and easily at all times. In both the inflated and deflated states, the inflatable part of the freeboard forms a permanently attached part of the vessel. After passing through the passage, the inflatable part of the freeboard is restored to its original shape using an air pump, after which the vessel safely navigates the waterway in its complete form.

The application discloses a water channel structure for an extruder cylinder and the extruder cylinder, and the water channel structure comprises a water channel arranged in the cylinder, the water channel is composed of 22 pipes, two adjacent pipes are combined as one passage, and the whole is a circulating water channel structure; cooling water enters from one end, and is discharged from the other end after five times of circulation in the cylinder. The water channel structure for the extruder cylinder of the embodiment of the application can realize uniform cooling, avoid cooling system failure caused by water channel blockage, meet the requirement of rapid cooling, and improve the overall performance of the extruder and product quality.

This invention relates to a design method, training system, and demonstration device for rescue facilities in turbulent waters. The method includes: Step S1, establishing a physical model: establishing a fixed-bed physical model similar to the prototype hydraulic model, the physical model including a waterway model and obstacle models placed within the waterway model, the obstacle models causing the water flow through the waterway model to form a predetermined turbulent flow pattern; Step S2, physical model testing: simulating the turbulent flow pattern on the physical model, establishing a database containing the mapping relationship between the flow pattern, the arrangement of obstacle models, and hydraulic parameters; Step S3, CFD numerical simulation and optimization: establishing a numerical model to conduct parametric research and optimization of the obstacle models, obtaining optimized obstacle model design parameters. This application proposes a tandem design method of "physical model testing + CFD numerical simulation optimization," which improves the scientific and economical nature of the design, can simulate typical turbulent flow patterns that endanger personnel safety with high fidelity, and enhances training effectiveness.

The application provides a kind of ship dock approach waterway inner wall positioning measuring device and method, device includes: handheld shell, it has: infrared light multi-point measuring unit (1) on it, it includes a plurality of ranging sensors according to the center of a circle symmetric arrangement on a vertical plane;Centering device (2) is configured to vertically downward laser emission realizes the centering of device;Inertial measurement unit (3) is configured to measure the pose of device;And two-way inclinometer (4) is configured to measure the horizontal angle of device in the direction of motion.Handheld device is along waterway movement, and waterway is scanned, and the distance measured using infrared light multi-point measuring unit, the position and heading angle of device obtained using inertial measurement unit, the longitudinal inclination β1 and transverse inclination β2 of device in the direction of travel given using two-way inclinometer, the position of each measured point of waterway inner wall is calculated, and all measured points are classified according to the distance of travel to each section, so as to obtain the geometric form of waterway section.

This invention relates to the field of water conservancy engineering technology and discloses a sedimentation facility, comprising a waterway, an inlet waterway, a first opening and closing structure, an overflow pool, a sedimentation pool, an outlet waterway, and a second opening and closing structure. The waterway is located at the upper end of the overflow pool. The first opening and closing structure is located on the left side of the overflow pool, and the second opening and closing structure is located on the right side. The sedimentation pool is located on the side of the overflow pool furthest from the waterway. In sedimentation mode, the first opening and closing structure is open, and the second opening and closing structure is closed. In dredging mode, both the first and second opening and closing structures are open. This invention can intercept and filter sediment in a comprehensive and targeted manner, and can achieve complete backwashing, ensuring its long-term effective and stable operation.

This invention provides a method and system for assessing and issuing early warnings of insufficient channel scale risk. The method includes: collecting mapping and detection data for each waterway; constructing and validating water and sediment numerical models for each waterway based on the mapping and detection data; the detection data includes data from n waterway detection missions, and calculating the predicted average scour and sedimentation amplitude for each time corresponding to each detection mission based on the water and sediment numerical models; constructing multiple feature vector sets for each waterway based on the detection data and the predicted average scour and sedimentation amplitude, with each feature vector set matching the corresponding time feature factors based on the execution time of each waterway detection mission; training and validating the machine learning early warning model for each waterway using the multiple feature vector sets; and evaluating the scale alarm prediction level for each waterway using the machine learning early warning model. This invention improves the accuracy and stability of insufficient scale risk early warning.

The utility model relates to a kind of corrugated flow flow regime waterway structures, including first blocking section, slope section and second blocking section sequentially arranged from upstream to downstream, the bottom of first blocking section is higher than the bottom of second blocking section;Slope section is provided with replaceable bottom plate module, the top of bottom plate module is provided with inclined surface, the end of inclined surface close to upstream is flush with and connected with the bottom of first blocking section, the end of inclined surface close to downstream is flush with and connected with second blocking section;First blocking section and second blocking section are respectively provided with replaceable first water retaining module and second water retaining module, and first water retaining module and second water retaining module are arranged at the opposite sides of waterway structure;The utility model can adjust the height, gradient of bottom plate, change bottom plate longitudinal slope boundary line type, obtain different water flow velocity or fall, to change the intensity of the corrugated flow water flow regime formed, meet the requirement of different training difficulty by setting replaceable bottom plate module.

1. Name of the product in this design: Stainless Steel Faucet (Dual Waterway - Circulating Water - Water Purifier). 2. Application of this design: This design is used for stainless steel faucets. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model provides a kind of air-tightness detection device, it is related to waterway air-tightness detection technical field.The device includes installation cylinder, connecting pipe and elastic sealing element, installation cylinder has internal passage for inputting detection gas to measured area, connecting pipe is slidably connected with installation cylinder, elastic sealing element, it is sleeved in connecting pipe, when connecting pipe slides to first preset position along axial direction, connecting pipe drives elastic sealing element to extrude at the end surface of installation cylinder, elastic sealing element can expand along radial direction, to seal measured area.The device can quickly complete sealing effect without complex operation, significantly shorten detection time, meet the demand of on-site rapid detection, the sealing structure can effectively compensate the size tolerance and surface roughness deviation of waterway interface, avoid the leakage problem caused by the cooperation gap of traditional rigid sealing element, meet the reliability of sealing while structure is simpler, operation is more convenient, and structure cost is lower.

This utility model relates to the technical field of thermostatic faucets, and in particular to a detachable faucet structure, which includes a shell and a water channel assembly disposed within the shell. The shell is formed by splicing a first shell and a second shell. The first shell includes a top plate, two side plates, and a first bottom plate, while the second shell includes a second bottom plate and a back plate. The two shells are spliced ​​together via a snap-fit ​​interface and a snap-fit ​​block, with the splicing line located at the bottom of the shell. The water channel assembly is fixed to a connecting post on the second shell by a locking member. A cover plate is disposed at the front end of the first shell and connected to the valve core. This application avoids split lines and exposed screws on the main appearance surfaces, simplifies the assembly process, adapts to irregular curved surface designs, and enhances product appearance and market competitiveness.