17results about How to "Parameter stability" patented technology

The invention discloses a water turbine runner welding device which comprises a transfer positioning assembly and a welding assembly. The transfer positioning assembly is composed of an indexing rotary disc A and an indexing rotary disc B. Two sets of evenly-distributed positioning chucks A are arranged on the indexing rotary disc A and used for fixing a positioning ring. And the indexing turntable B is provided with three groups of uniformly distributed positioning chucks B for fixing the runner main body or the positioning table, and the positioning chucks B are used for uniformly arranging and positioning the blades. The welding assembly is matched with the indexing rotary table A and the indexing rotary table B and comprises a rotating ring A and a rotating ring B which are provided with a laser welding gun A and a laser welding gun B correspondingly. The laser welding gun A is responsible for welding the connecting position of the positioning ring and the blade, and the laser welding gun B is responsible for welding the connecting position of the rotating wheel body and the blade. The welding precision and efficiency are remarkably improved, risks caused by manual operation are reduced, meanwhile, the production environment is improved, and the requirement for modern water turbine manufacturing is fully met. High-quality welding can be achieved, the production process is optimized, and the overall production efficiency is improved.

The invention provides a test device and method for evaluating chlorine resistance of a material. The test device comprises a water treatment unit; a chlorine dioxide generating unit; the storage tank is used for mixing the purified water and the chlorine dioxide therein to form a test solution; the test system comprises a water tank and a test unit, the test unit comprises at least one sample rack and a test device, the sample rack is used for fixing a test sample, and the test device is used for monitoring the performance of the test sample; the circulating system comprises a circulating pipeline and a circulating pump, the circulating pipeline is used for communicating the storage tank with the water tank to form a circulating path, and the circulating pump is used for enabling the test solution to circularly flow in the circulating path; and the wastewater treatment unit is communicated with the circulating pipeline and is used for reducing the test solution separated from the circulating pipeline and discharging the test solution out of the device. The test device is provided with the circulating system, so that various parameters of the test solution can be kept stable, and meanwhile, the operability, the safety and the environmental protection are obviously improved.

The utility model discloses an inductance assembly arrangement structure, an angular displacement measuring device and a linear displacement measuring device, which comprise a main coil and mutual inductance coils, at least two mutual inductance coils are arranged in the projection contour range of the main coil, each mutual inductance coil is an inductance element with a surface mount type winding structure, and the linear displacement measuring device is arranged in the main coil. And the winding axial direction of each mutual inductance coil is parallel to the winding axial direction of the main coil. The beneficial effects of the utility model are that the mutual inductance coil employs a surface-mounted winding structure element, not only has the advantages of low cost and stable parameters, but also the inductance element of the surface-mounted winding structure is small in size and beneficial to overall arrangement, so that the mutual inductance coil and the main coil can be arranged in a manner that the winding axial direction is parallel. Due to the fact that the coils are parallel in the axial direction, the mutual inductance coils can be assembled in sequence in the axial direction and do not need to avoid the main coil, and the production and assembly process is greatly simplified.

This utility model discloses a multi-layer skid-mounted desuperheating and pressure reducing device, relating to the field of desuperheating and pressure reducing devices for high-temperature steam. Existing desuperheating and pressure reducing devices mostly adopt a decentralized layout, with steam pipelines, high-pressure boiler water pipelines, and auxiliary pipelines distributed haphazardly. This not only occupies a large amount of installation space but also causes mutual interference between pipelines, increasing maintenance difficulty. This utility model includes steam pipelines, high-pressure boiler water supply pipelines, and condensate discharge pipelines. The steam pipelines, arranged sequentially according to the steam flow direction, include a steam pressure reducing pipeline section, a steam desuperheating pipeline section, and a steam outlet pipeline section. The condensate discharge pipeline, steam pressure reducing pipeline section, high-pressure boiler water supply pipeline, and steam outlet pipeline section are arranged horizontally in layers at different heights from bottom to top on a skid-mounted base. By dividing the pipeline sections into multiple horizontal layers at different heights, a compact layout of the equipment is achieved, saving installation space. The layered design facilitates independent operation and maintenance of each pipeline and reduces mutual interference.

The invention relates to the technical field of artificial intelligence, and provides a mountain wind energy resource dynamic evaluation method and device, equipment and a medium, which can perform attention fusion on multi-dimensional initial data, so that fusion features consider feature importance difference and comprehensiveness. A mountain wind energy evaluation data set with a wind energy power density label is constructed, and a basis is provided for supervised training of the model; the state space completely covers core variables influencing mountain wind energy evaluation, and the problem that a traditional model is insufficient in state space dimension and cannot represent a complex coupling relation is solved. The action space is in non-static output, so that the adaptive capacity of the model is improved; the reward function solves the technical problem that precision and efficiency cannot be considered at the same time; a dual experience playback mechanism improves the evaluation precision of the model on a complex wind field scene; the target network delay updating strategy enables the target network to maintain parameter stability in an iteration period, and the problems of training oscillation and slow convergence caused by real-time fluctuation of target return are solved.

This utility model discloses a flour processing feeding device, relating to the field of food processing equipment technology. It includes a feeding hopper with a support frame mounted on it. A stirring frame is rotatably connected inside the feeding hopper. A first servo motor is mounted on the feeding hopper, and its output end is connected to an extension of the stirring frame that passes through the feeding hopper. A cleaning brush is provided on the stirring frame. A feeding pipe is located at the lower end of the feeding hopper, with a uniform feeding component mounted on it. An infrared sensor is installed on the inner wall of the feeding pipe. A vibration motor is mounted on the feeding hopper, and a soft feeding cover is installed on the feeding pipe. This utility model, by setting a uniform feeding component and cooperating with the infrared sensor installed on the inner wall of the feeding pipe, establishes an active and precise feeding control mechanism. The cleaning brush simultaneously performs all-round wiping and cleaning of the inner wall of the feeding hopper, effectively removing attached flour residue.

This utility model provides an integrated VOCs adsorption and purification device for industrial use, belonging to the field of air purification technology. It includes a housing, from bottom to top, comprising a filter chamber, a buffer chamber, and an exhaust chamber. An air inlet pipe is located on the outside of the filter chamber, and a filter unit with a filter cavity is installed inside the filter chamber. The air inlet pipe connects to the filter cavity. An air inlet connecting to the filter chamber is located at the bottom of the buffer chamber, and an air outlet connecting to the exhaust chamber is located at the top of the buffer chamber. An exhaust pipe is located on the outside of the exhaust chamber, and an exhaust fan is installed inside the exhaust chamber. The air inlet of the exhaust fan is connected to the air outlet, and the exhaust outlet of the exhaust fan is connected to the exhaust pipe. The integrated VOCs adsorption and purification device for industrial use provided by this utility model has a compact structure, high purification efficiency, stable operation, and convenient maintenance, meeting the needs of air pollution control.

The application discloses a virtual role behavior action prediction method and system based on a neural network, which introduces physical rules in the form of executable codes and semantic constraints in the form of hot update rule tables for double checking after model output; under the premise of not retraining the model, the mechanism of combining the high generalization ability of the neural network with the certainty of the rule engine effectively guarantees the legality, rationality and authenticity of the virtual role behavior; through integrated Grad-CAM or SHAP feature attribution analysis, a logical link from environment perception to behavior execution is established, so that the developer can accurately quantify the contribution of position and posture factors to the decision, and through the introduction of controlled disturbance at the input end, the stability is screened, so that the parameters can still remain stable under abnormal interference, and the role jitter and collapse caused by network fluctuation or abnormal operation online are avoided, and the engineering reliability of the system in a complex interactive environment is greatly enhanced.

The present invention provides a method for preparing cerium carbonate by continuous precipitation and crystallization, and relates to the technical field of hydrometallurgy. The present invention applies a sieve plate tower reactor to carbonate precipitation of rare earths, and the shear rate and shear stress in the sieve plate tower reactor are distributed relatively evenly within the entire flow field, and the particle size and quality stability and consistency of the rare earth carbonate precipitation crystallization can be ensured as much as possible under the premise of ensuring the two-phase mass transfer efficiency, thereby improving the product quality; the present invention adopts a sieve plate tower reactor to realize reaction-washing synchronously, greatly shortening the production time and improving the production efficiency; thanks to the tower-type continuous structure of the sieve plate tower reactor, the parameters of each level in the tower are consistent and stable, and the circulating water temperature and the inlet and outlet valve positions can realize full automatic control, reducing human errors and low operating difficulty, thereby improving its safety. The method provided by the present invention is used to prepare cerium carbonate, and the product quality is good and the production efficiency is high.

The utility model discloses a foaming device for memory pillow production, which comprises a device main body, a feeding pump, a raw material tank, a sealing cover, a steam generator and a stirring rod, the raw material tank is arranged on the left side of the device main body, the feeding pump is fixedly arranged on the raw material tank, and the feeding pump is communicated with the device main body and the raw material tank. A sealing cover fixedly covers the top of the device body, a motor is fixedly mounted on the sealing cover, a steam generator is mounted on the right side of the device body, and a stirring rod is rotatably mounted in the device body. Raw materials required by memory pillow production are extracted from the raw material tank through the feeding pump and are fed into the device main body, meanwhile, steam is discharged into the device main body through the steam generator, and a mixture in the device main body is stirred through the stirring rod driven by the motor, so that the mixing efficiency and uniformity are improved.

The invention relates to the technical field of computers, and provides an image-text matching model training method and device, electronic equipment and a storage medium. The method comprises the following steps: inputting a current batch of training texts and a current batch of training images into an image-text matching model for encoding to obtain an initial feature vector of the current batch of training texts and an initial feature vector of the current batch of training images; obtaining feature vectors of historical batch training texts and feature vectors of historical batch training images from a feature storage queue; obtaining a loss value based on the current batch of feature vectors and the historical batch of feature vectors, updating parameters of the image-text matching model based on the loss value, and obtaining a trained image-text matching model; and inputting the current batch of training texts and the current batch of training images into the trained image-text matching model for coding to obtain a feature vector of the current batch of training texts and a feature vector of the current batch of training images, updating a feature storage queue according to the feature vectors, improving the performance of the image-text matching model and enhancing the robustness of the image-text matching model.

The utility model relates to a novel wireless power supply electricity taking device, which is used for a wireless receiving end to obtain electric energy and comprises an electricity taking assembly and a resonant capacitor assembly, the resonant capacitor assembly is arranged above the electricity taking assembly and comprises a resonant capacitor plate, and the electricity taking assembly comprises an H-shaped magnetic core and an electricity taking coil. The two ends of the electricity taking coil are connected to the resonant capacitor plate, and an output cable of the resonant capacitor plate is connected to a receiving controller. The electricity taking coil is of a multi-layer structure in the vertical direction, the size of the electricity taking device can be reduced under the same power requirement, the electricity taking efficiency of a unit area is improved, and cost is reduced. The resonant capacitor assembly is arranged above the electricity taking assembly, and the distance between the resonant capacitor plate and the electricity taking coil is reduced, so that the equipment integration level is improved, the deviation requirement on coil parameters is reduced, the parameters of the electricity taking device are more stable, the overall consistency performance is better, and production and maintenance are facilitated.

The invention relates to the field of composite materials, in particular to a graphene capsule, a honeycomb core wave-absorbing material and a preparation method thereof. The graphene capsule comprises a capsule shell and a filler, the capsule shell is prepared from a wave-transparent material, and the filler is a graphene powder material. The honeycomb core wave-absorbing material comprises a honeycomb core, and the honeycomb core is filled with the graphene capsule. The graphene capsules are adopted as the filler, the wave-absorbing performance and parameters of the single capsule are relatively more stable, the designability of the wave-absorbing performance of the honeycomb core is higher, and the adjustable range of the wave-absorbing performance is wider. According to the preparation process of the honeycomb core wave-absorbing material, mechanical equipment can be adopted for filling capsules, operation is more standardized, and the designability of the filling process is higher. Meanwhile, the wave-absorbing material of the honeycomb core is higher in maintainability, and when the wave-absorbing material is damaged, only the damaged graphene capsule needs to be independently repaired and replaced.

The present invention discloses an online experimental system and method for high-temperature and high-pressure steam oxidation in a thermal power plant. The system is provided with a steam introduction module, an experimental module and a steam recovery module. The steam introduction module introduces the high-temperature and high-pressure steam actually operated by the thermal power plant generator set from the hot re-drainage pipeline. After passing through the experimental pipeline, the steam enters the steam recovery module and finally enters the heating pipeline for recovery, which has little impact on the efficiency of the generator set. The system can use the high-temperature and high-pressure steam actually operated by the thermal power plant generator set to conduct high-temperature and high-pressure steam oxidation experiments on metal materials to be studied. The experimental parameters of the system are the same as the actual service parameters of the metal materials, and can be controlled and adjusted within a certain range. The experimental data has high accuracy, analyzability and comparability, which reduces the adverse effects caused by the difference between the experimental parameters in the laboratory of the scientific research institution and the actual service environment parameters of the metal materials.

The application discloses a meterable abnormal water use flow limiting device, which is composed of a metering module, an accumulation reset module, a trigger execution module and an external manual reset assembly. The application accurately calibrates the trigger water accumulation volume through mechanical gear matching. The automatic accumulation data zero reset is realized by relying on water stop surge during normal intermittent water use. The main waterway is automatically shut off when the continuous abnormal water leakage accumulates to the set volume, and only small flow bypass water supply is reserved. After the water leakage fault is repaired, the valve core reset and cam counting zero are completed in an integrated manner through the external manual reset handle. The application is operated in a passive mechanical mode throughout the process, does not require electric control components, can identify 0.1L / min micro leakage at the minimum, can adjust the trigger threshold value in a mechanical mode through gear matching, and solves the industry pain points that the existing passive water leakage protector cannot distinguish intermittent normal water use and continuous leakage, micro leakage detection fails and reset is complicated.

The present invention provides a secondary battery state estimation system, a secondary battery state estimation method, and a recording medium that suppress a reduction in the estimation accuracy of an internal state even when the number of parameters of the internal state of a secondary battery to be diagnosed is increased. A system (1) provided with a secondary battery state estimation device (10) is provided with an optimization unit (25) that estimates the degree of deterioration of a secondary battery (11) to be estimated. The optimization unit acquires a plurality of parameters relating to the state of the secondary battery to be estimated on the basis of voltage data (closed-circuit voltage (CCV) or open-circuit voltage (OCV)) acquired in the secondary battery to be estimated. The optimization unit performs a predetermined optimization process on at least one parameter selected exclusively from the plurality of parameters in sequence for each of the plurality of voltage regions or the plurality of capacity regions on the basis of a predetermined correspondence relationship between the plurality of voltage regions or the plurality of capacity regions and the plurality of parameters.

This application provides a method and apparatus for waste heat recovery from high-temperature solid materials. The apparatus includes a support frame with a rotary heat exchange box mounted on it. One end of the rotary heat exchange box is connected to a power unit, which is fixed to one side of the support frame. A rotating shaft is rotatably mounted on the other side of the support frame and connected to the other end of the rotary heat exchange box. A material fixing device is fixed inside the rotary heat exchange box. In this application, the power unit drives the rotary heat exchange box to rotate at a low speed, which in turn drives the material fixing device to rotate at a low speed. This causes continuous and omnidirectional relative motion and contact renewal between the heat exchange medium and the solid material, thereby achieving dynamic, uniform, and efficient direct contact heat transfer. This fundamentally solves the problems of low heat exchange efficiency and uneven cooling caused by poor contact in static filling.